#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#define TPACPI_VERSION "0.26"
#define TPACPI_SYSFS_VERSION 0x030000
#include <linux/acpi.h>
#include <linux/backlight.h>
#include <linux/bitfield.h>
#include <linux/bitops.h>
#include <linux/debugfs.h>
#include <linux/delay.h>
#include <linux/dmi.h>
#include <linux/freezer.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/leds.h>
#include <linux/list.h>
#include <linux/lockdep.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/nvram.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/platform_profile.h>
#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/rfkill.h>
#include <linux/sched.h>
#include <linux/sched/signal.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/string_helpers.h>
#include <linux/sysfs.h>
#include <linux/types.h>
#include <linux/uaccess.h>
#include <linux/units.h>
#include <linux/workqueue.h>
#include <acpi/battery.h>
#include <acpi/video.h>
#include <drm/drm_privacy_screen_driver.h>
#include <sound/control.h>
#include <sound/core.h>
#include <sound/initval.h>
#include "../dual_accel_detect.h"
#define TP_CMOS_VOLUME_DOWN 0
#define TP_CMOS_VOLUME_UP 1
#define TP_CMOS_VOLUME_MUTE 2
#define TP_CMOS_BRIGHTNESS_UP 4
#define TP_CMOS_BRIGHTNESS_DOWN 5
#define TP_CMOS_THINKLIGHT_ON 12
#define TP_CMOS_THINKLIGHT_OFF 13
enum tp_nvram_addr {
TP_NVRAM_ADDR_HK2 = 0x57,
TP_NVRAM_ADDR_THINKLIGHT = 0x58,
TP_NVRAM_ADDR_VIDEO = 0x59,
TP_NVRAM_ADDR_BRIGHTNESS = 0x5e,
TP_NVRAM_ADDR_MIXER = 0x60,
};
enum {
TP_NVRAM_MASK_HKT_THINKPAD = 0x08,
TP_NVRAM_MASK_HKT_ZOOM = 0x20,
TP_NVRAM_MASK_HKT_DISPLAY = 0x40,
TP_NVRAM_MASK_HKT_HIBERNATE = 0x80,
TP_NVRAM_MASK_THINKLIGHT = 0x10,
TP_NVRAM_MASK_HKT_DISPEXPND = 0x30,
TP_NVRAM_MASK_HKT_BRIGHTNESS = 0x20,
TP_NVRAM_MASK_LEVEL_BRIGHTNESS = 0x0f,
TP_NVRAM_POS_LEVEL_BRIGHTNESS = 0,
TP_NVRAM_MASK_MUTE = 0x40,
TP_NVRAM_MASK_HKT_VOLUME = 0x80,
TP_NVRAM_MASK_LEVEL_VOLUME = 0x0f,
TP_NVRAM_POS_LEVEL_VOLUME = 0,
};
enum {
TP_NVRAM_LEVEL_VOLUME_MAX = 14,
};
#define TPACPI_ACPI_IBM_HKEY_HID "IBM0068"
#define TPACPI_ACPI_LENOVO_HKEY_HID "LEN0068"
#define TPACPI_ACPI_LENOVO_HKEY_V2_HID "LEN0268"
#define TPACPI_ACPI_EC_HID "PNP0C09"
#define TPACPI_HKEY_INPUT_PRODUCT 0x5054
#define TPACPI_HKEY_INPUT_VERSION 0x4101
enum {
TP_ACPI_WGSV_GET_STATE = 0x01,
TP_ACPI_WGSV_PWR_ON_ON_RESUME = 0x02,
TP_ACPI_WGSV_PWR_OFF_ON_RESUME = 0x03,
TP_ACPI_WGSV_SAVE_STATE = 0x04,
};
enum {
TP_ACPI_WGSV_STATE_WWANEXIST = 0x0001,
TP_ACPI_WGSV_STATE_WWANPWR = 0x0002,
TP_ACPI_WGSV_STATE_WWANPWRRES = 0x0004,
TP_ACPI_WGSV_STATE_WWANBIOSOFF = 0x0008,
TP_ACPI_WGSV_STATE_BLTHEXIST = 0x0001,
TP_ACPI_WGSV_STATE_BLTHPWR = 0x0002,
TP_ACPI_WGSV_STATE_BLTHPWRRES = 0x0004,
TP_ACPI_WGSV_STATE_BLTHBIOSOFF = 0x0008,
TP_ACPI_WGSV_STATE_UWBEXIST = 0x0010,
TP_ACPI_WGSV_STATE_UWBPWR = 0x0020,
};
enum tpacpi_hkey_event_t {
TP_HKEY_EV_ORIG_KEY_START = 0x1001,
TP_HKEY_EV_BRGHT_UP = 0x1010,
TP_HKEY_EV_BRGHT_DOWN = 0x1011,
TP_HKEY_EV_KBD_LIGHT = 0x1012,
TP_HKEY_EV_VOL_UP = 0x1015,
TP_HKEY_EV_VOL_DOWN = 0x1016,
TP_HKEY_EV_VOL_MUTE = 0x1017,
TP_HKEY_EV_ORIG_KEY_END = 0x1020,
TP_HKEY_EV_DFR_CHANGE_ROW = 0x1101,
TP_HKEY_EV_DFR_S_QUICKVIEW_ROW = 0x1102,
TP_HKEY_EV_ADAPTIVE_KEY_START = 0x1103,
TP_HKEY_EV_ADAPTIVE_KEY_END = 0x1116,
TP_HKEY_EV_EXTENDED_KEY_START = 0x1300,
TP_HKEY_EV_PRIVACYGUARD_TOGGLE = 0x130f,
TP_HKEY_EV_EXTENDED_KEY_END = 0x1319,
TP_HKEY_EV_AMT_TOGGLE = 0x131a,
TP_HKEY_EV_CAMERASHUTTER_TOGGLE = 0x131b,
TP_HKEY_EV_DOUBLETAP_TOGGLE = 0x131c,
TP_HKEY_EV_PROFILE_TOGGLE = 0x131f,
TP_HKEY_EV_PROFILE_TOGGLE2 = 0x1401,
TP_HKEY_EV_WKUP_S3_UNDOCK = 0x2304,
TP_HKEY_EV_WKUP_S4_UNDOCK = 0x2404,
TP_HKEY_EV_WKUP_S3_BAYEJ = 0x2305,
TP_HKEY_EV_WKUP_S4_BAYEJ = 0x2405,
TP_HKEY_EV_WKUP_S3_BATLOW = 0x2313,
TP_HKEY_EV_WKUP_S4_BATLOW = 0x2413,
TP_HKEY_EV_BAYEJ_ACK = 0x3003,
TP_HKEY_EV_UNDOCK_ACK = 0x4003,
TP_HKEY_EV_OPTDRV_EJ = 0x3006,
TP_HKEY_EV_HOTPLUG_DOCK = 0x4010,
TP_HKEY_EV_HOTPLUG_UNDOCK = 0x4011,
TP_HKEY_EV_KBD_COVER_ATTACH = 0x4012,
TP_HKEY_EV_KBD_COVER_DETACH = 0x4013,
TP_HKEY_EV_LID_CLOSE = 0x5001,
TP_HKEY_EV_LID_OPEN = 0x5002,
TP_HKEY_EV_TABLET_TABLET = 0x5009,
TP_HKEY_EV_TABLET_NOTEBOOK = 0x500a,
TP_HKEY_EV_TABLET_CHANGED = 0x60c0,
TP_HKEY_EV_PEN_INSERTED = 0x500b,
TP_HKEY_EV_PEN_REMOVED = 0x500c,
TP_HKEY_EV_BRGHT_CHANGED = 0x5010,
TP_HKEY_EV_KEY_NUMLOCK = 0x6000,
TP_HKEY_EV_KEY_FN = 0x6005,
TP_HKEY_EV_KEY_FN_ESC = 0x6060,
TP_HKEY_EV_ALARM_BAT_HOT = 0x6011,
TP_HKEY_EV_ALARM_BAT_XHOT = 0x6012,
TP_HKEY_EV_ALARM_BAT_LIM_CHANGE = 0x6013,
TP_HKEY_EV_ALARM_SENSOR_HOT = 0x6021,
TP_HKEY_EV_ALARM_SENSOR_XHOT = 0x6022,
TP_HKEY_EV_THM_TABLE_CHANGED = 0x6030,
TP_HKEY_EV_THM_CSM_COMPLETED = 0x6032,
TP_HKEY_EV_THM_TRANSFM_CHANGED = 0x60F0,
TP_HKEY_EV_AC_CHANGED = 0x6040,
TP_HKEY_EV_PALM_DETECTED = 0x60b0,
TP_HKEY_EV_PALM_UNDETECTED = 0x60b1,
TP_HKEY_EV_RFKILL_CHANGED = 0x7000,
TP_HKEY_EV_TRACK_DOUBLETAP = 0x8036,
};
#define TPACPI_NAME "thinkpad"
#define TPACPI_DESC "ThinkPad ACPI Extras"
#define TPACPI_FILE TPACPI_NAME "_acpi"
#define TPACPI_URL "http://ibm-acpi.sf.net/"
#define TPACPI_MAIL "ibm-acpi-devel@lists.sourceforge.net"
#define TPACPI_PROC_DIR "ibm"
#define TPACPI_ACPI_EVENT_PREFIX "ibm"
#define TPACPI_DRVR_NAME TPACPI_FILE
#define TPACPI_DRVR_SHORTNAME "tpacpi"
#define TPACPI_HWMON_DRVR_NAME TPACPI_NAME "_hwmon"
#define TPACPI_NVRAM_KTHREAD_NAME "ktpacpi_nvramd"
#define TPACPI_WORKQUEUE_NAME "ktpacpid"
#define TPACPI_MAX_ACPI_ARGS 3
#define TPACPI_DBG_ALL 0xffff
#define TPACPI_DBG_DISCLOSETASK 0x8000
#define TPACPI_DBG_INIT 0x0001
#define TPACPI_DBG_EXIT 0x0002
#define TPACPI_DBG_RFKILL 0x0004
#define TPACPI_DBG_HKEY 0x0008
#define TPACPI_DBG_FAN 0x0010
#define TPACPI_DBG_BRGHT 0x0020
#define TPACPI_DBG_MIXER 0x0040
#define FAN_NOT_PRESENT 65535
struct ibm_struct;
struct tp_acpi_drv_struct {
const struct acpi_device_id *hid;
void (*notify) (struct ibm_struct *, u32);
acpi_handle *handle;
u32 type;
struct acpi_device *device;
};
struct ibm_struct {
char *name;
int (*read) (struct seq_file *);
int (*write) (char *);
void (*exit) (void);
void (*resume) (void);
void (*suspend) (void);
void (*shutdown) (void);
struct list_head all_drivers;
struct tp_acpi_drv_struct *acpi;
struct {
u8 acpi_notify_installed:1;
u8 proc_created:1;
u8 init_called:1;
u8 experimental:1;
} flags;
};
struct ibm_init_struct {
char param[32];
int (*init) (struct ibm_init_struct *);
umode_t base_procfs_mode;
struct ibm_struct *data;
};
struct quirk_entry {
bool btusb_bug;
};
static struct quirk_entry quirk_btusb_bug = {
.btusb_bug = true,
};
static struct {
u32 bluetooth:1;
u32 hotkey:1;
u32 hotkey_mask:1;
u32 hotkey_wlsw:1;
enum {
TP_HOTKEY_TABLET_NONE = 0,
TP_HOTKEY_TABLET_USES_MHKG,
TP_HOTKEY_TABLET_USES_GMMS,
} hotkey_tablet;
u32 kbdlight:1;
u32 light:1;
u32 light_status:1;
u32 bright_acpimode:1;
u32 bright_unkfw:1;
u32 wan:1;
u32 uwb:1;
u32 fan_ctrl_status_undef:1;
u32 second_fan:1;
u32 second_fan_ctl:1;
u32 beep_needs_two_args:1;
u32 mixer_no_level_control:1;
u32 battery_force_primary:1;
u32 platform_drv_registered:1;
u32 hotkey_poll_active:1;
u32 has_adaptive_kbd:1;
u32 kbd_lang:1;
u32 trackpoint_doubletap_enable:1;
struct quirk_entry *quirks;
} tp_features;
static struct {
u16 hotkey_mask_ff:1;
u16 volume_ctrl_forbidden:1;
} tp_warned;
struct thinkpad_id_data {
unsigned int vendor;
char *bios_version_str;
char *ec_version_str;
u32 bios_model;
u32 ec_model;
u16 bios_release;
u16 ec_release;
char *model_str;
char *nummodel_str;
};
static struct thinkpad_id_data thinkpad_id;
static enum {
TPACPI_LIFE_INIT = 0,
TPACPI_LIFE_RUNNING,
TPACPI_LIFE_EXITING,
} tpacpi_lifecycle;
static int experimental;
static u32 dbg_level;
static struct workqueue_struct *tpacpi_wq;
enum led_status_t {
TPACPI_LED_OFF = 0,
TPACPI_LED_ON,
TPACPI_LED_BLINK,
};
struct tpacpi_led_classdev {
struct led_classdev led_classdev;
int led;
};
static unsigned int bright_maxlvl;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static int dbg_wlswemul;
static bool tpacpi_wlsw_emulstate;
static int dbg_bluetoothemul;
static bool tpacpi_bluetooth_emulstate;
static int dbg_wwanemul;
static bool tpacpi_wwan_emulstate;
static int dbg_uwbemul;
static bool tpacpi_uwb_emulstate;
#endif
#define dbg_printk(a_dbg_level, format, arg...) \
do { \
if (dbg_level & (a_dbg_level)) \
printk(KERN_DEBUG pr_fmt("%s: " format), \
__func__, ##arg); \
} while (0)
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
#define vdbg_printk dbg_printk
static const char *str_supported(int is_supported);
#else
static inline const char *str_supported(int is_supported) { return ""; }
#define vdbg_printk(a_dbg_level, format, arg...) \
do { if (0) no_printk(format, ##arg); } while (0)
#endif
static void tpacpi_log_usertask(const char * const what)
{
printk(KERN_DEBUG pr_fmt("%s: access by process with PID %d\n"),
what, task_tgid_vnr(current));
}
#define tpacpi_disclose_usertask(what, format, arg...) \
do { \
if (unlikely((dbg_level & TPACPI_DBG_DISCLOSETASK) && \
(tpacpi_lifecycle == TPACPI_LIFE_RUNNING))) { \
printk(KERN_DEBUG pr_fmt("%s: PID %d: " format), \
what, task_tgid_vnr(current), ## arg); \
} \
} while (0)
#define TPACPI_MATCH_ANY 0xffffffffU
#define TPACPI_MATCH_ANY_VERSION 0xffffU
#define TPACPI_MATCH_UNKNOWN 0U
#define TPID(__c1, __c2) (((__c1) << 8) | (__c2))
#define TPID3(__c1, __c2, __c3) (((__c1) << 16) | ((__c2) << 8) | (__c3))
#define TPVER TPID
#define TPACPI_Q_IBM(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_IBM, \
.bios = TPID(__id1, __id2), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_Q_LNV(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPID(__id1, __id2), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_Q_LNV3(__id1, __id2, __id3, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPID3(__id1, __id2, __id3), \
.ec = TPACPI_MATCH_ANY, \
.quirks = (__quirk) }
#define TPACPI_QEC_IBM(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_IBM, \
.bios = TPACPI_MATCH_ANY, \
.ec = TPID(__id1, __id2), \
.quirks = (__quirk) }
#define TPACPI_QEC_LNV(__id1, __id2, __quirk) \
{ .vendor = PCI_VENDOR_ID_LENOVO, \
.bios = TPACPI_MATCH_ANY, \
.ec = TPID(__id1, __id2), \
.quirks = (__quirk) }
struct tpacpi_quirk {
unsigned int vendor;
u32 bios;
u32 ec;
unsigned long quirks;
};
static unsigned long __init tpacpi_check_quirks(
const struct tpacpi_quirk *qlist,
unsigned int qlist_size)
{
while (qlist_size) {
if ((qlist->vendor == thinkpad_id.vendor ||
qlist->vendor == TPACPI_MATCH_ANY) &&
(qlist->bios == thinkpad_id.bios_model ||
qlist->bios == TPACPI_MATCH_ANY) &&
(qlist->ec == thinkpad_id.ec_model ||
qlist->ec == TPACPI_MATCH_ANY))
return qlist->quirks;
qlist_size--;
qlist++;
}
return 0;
}
static __always_inline bool __pure __init tpacpi_is_lenovo(void)
{
return thinkpad_id.vendor == PCI_VENDOR_ID_LENOVO;
}
static __always_inline bool __pure __init tpacpi_is_ibm(void)
{
return thinkpad_id.vendor == PCI_VENDOR_ID_IBM;
}
static acpi_handle root_handle;
static acpi_handle ec_handle;
#define TPACPI_HANDLE(object, parent, paths...) \
static acpi_handle object##_handle; \
static const acpi_handle * const object##_parent __initconst = \
&parent##_handle; \
static char *object##_paths[] __initdata = { paths }
TPACPI_HANDLE(ecrd, ec, "ECRD");
TPACPI_HANDLE(ecwr, ec, "ECWR");
TPACPI_HANDLE(cmos, root, "\\UCMS",
"\\CMOS",
"\\CMS",
);
TPACPI_HANDLE(hkey, ec, "\\_SB.HKEY",
"^HKEY",
"HKEY",
);
static int acpi_evalf(acpi_handle handle,
int *res, char *method, char *fmt, ...)
{
char *fmt0 = fmt;
struct acpi_object_list params;
union acpi_object in_objs[TPACPI_MAX_ACPI_ARGS];
struct acpi_buffer result, *resultp;
union acpi_object out_obj;
acpi_status status;
va_list ap;
char res_type;
int success;
int quiet;
if (!*fmt) {
pr_err("acpi_evalf() called with empty format\n");
return 0;
}
if (*fmt == 'q') {
quiet = 1;
fmt++;
} else
quiet = 0;
res_type = *(fmt++);
params.count = 0;
params.pointer = &in_objs[0];
va_start(ap, fmt);
while (*fmt) {
char c = *(fmt++);
switch (c) {
case 'd':
in_objs[params.count].integer.value = va_arg(ap, int);
in_objs[params.count++].type = ACPI_TYPE_INTEGER;
break;
default:
pr_err("acpi_evalf() called with invalid format character '%c'\n",
c);
va_end(ap);
return 0;
}
}
va_end(ap);
if (res_type != 'v') {
result.length = sizeof(out_obj);
result.pointer = &out_obj;
resultp = &result;
} else
resultp = NULL;
status = acpi_evaluate_object(handle, method, ¶ms, resultp);
switch (res_type) {
case 'd':
success = (status == AE_OK &&
out_obj.type == ACPI_TYPE_INTEGER);
if (success && res)
*res = out_obj.integer.value;
break;
case 'v':
success = status == AE_OK;
break;
default:
pr_err("acpi_evalf() called with invalid format character '%c'\n",
res_type);
return 0;
}
if (!success && !quiet)
pr_err("acpi_evalf(%s, %s, ...) failed: %s\n",
method, fmt0, acpi_format_exception(status));
return success;
}
static int acpi_ec_read(int i, u8 *p)
{
int v;
if (ecrd_handle) {
if (!acpi_evalf(ecrd_handle, &v, NULL, "dd", i))
return 0;
*p = v;
} else {
if (ec_read(i, p) < 0)
return 0;
}
return 1;
}
static int acpi_ec_write(int i, u8 v)
{
if (ecwr_handle) {
if (!acpi_evalf(ecwr_handle, NULL, NULL, "vdd", i, v))
return 0;
} else {
if (ec_write(i, v) < 0)
return 0;
}
return 1;
}
static int issue_thinkpad_cmos_command(int cmos_cmd)
{
if (!cmos_handle)
return -ENXIO;
if (!acpi_evalf(cmos_handle, NULL, NULL, "vd", cmos_cmd))
return -EIO;
return 0;
}
#define TPACPI_ACPIHANDLE_INIT(object) \
drv_acpi_handle_init(#object, &object##_handle, *object##_parent, \
object##_paths, ARRAY_SIZE(object##_paths))
static void __init drv_acpi_handle_init(const char *name,
acpi_handle *handle, const acpi_handle parent,
char **paths, const int num_paths)
{
int i;
acpi_status status;
vdbg_printk(TPACPI_DBG_INIT, "trying to locate ACPI handle for %s\n",
name);
for (i = 0; i < num_paths; i++) {
status = acpi_get_handle(parent, paths[i], handle);
if (ACPI_SUCCESS(status)) {
dbg_printk(TPACPI_DBG_INIT,
"Found ACPI handle %s for %s\n",
paths[i], name);
return;
}
}
vdbg_printk(TPACPI_DBG_INIT, "ACPI handle for %s not found\n",
name);
*handle = NULL;
}
static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
u32 level, void *context, void **return_value)
{
if (!strcmp(context, "video")) {
struct acpi_device *dev = acpi_fetch_acpi_dev(handle);
if (!dev || strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev)))
return AE_OK;
}
*(acpi_handle *)return_value = handle;
return AE_CTRL_TERMINATE;
}
static void __init tpacpi_acpi_handle_locate(const char *name,
const char *hid,
acpi_handle *handle)
{
acpi_status status;
acpi_handle device_found;
BUG_ON(!name || !handle);
vdbg_printk(TPACPI_DBG_INIT,
"trying to locate ACPI handle for %s, using HID %s\n",
name, hid ? hid : "NULL");
memset(&device_found, 0, sizeof(device_found));
status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
(void *)name, &device_found);
*handle = NULL;
if (ACPI_SUCCESS(status)) {
*handle = device_found;
dbg_printk(TPACPI_DBG_INIT,
"Found ACPI handle for %s\n", name);
} else {
vdbg_printk(TPACPI_DBG_INIT,
"Could not locate an ACPI handle for %s: %s\n",
name, acpi_format_exception(status));
}
}
static void dispatch_acpi_notify(acpi_handle handle, u32 event, void *data)
{
struct ibm_struct *ibm = data;
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
return;
if (!ibm || !ibm->acpi || !ibm->acpi->notify)
return;
ibm->acpi->notify(ibm, event);
}
static int __init setup_acpi_notify(struct ibm_struct *ibm)
{
acpi_status status;
BUG_ON(!ibm->acpi);
if (!*ibm->acpi->handle)
return 0;
vdbg_printk(TPACPI_DBG_INIT,
"setting up ACPI notify for %s\n", ibm->name);
ibm->acpi->device = acpi_get_acpi_dev(*ibm->acpi->handle);
if (!ibm->acpi->device) {
pr_err("acpi_get_acpi_dev(%s) failed\n", ibm->name);
return -ENODEV;
}
ibm->acpi->device->driver_data = ibm;
scnprintf(acpi_device_class(ibm->acpi->device),
sizeof(acpi_device_class(ibm->acpi->device)),
"%s/%s", TPACPI_ACPI_EVENT_PREFIX, ibm->name);
status = acpi_install_notify_handler(*ibm->acpi->handle,
ibm->acpi->type, dispatch_acpi_notify, ibm);
if (ACPI_FAILURE(status)) {
if (status == AE_ALREADY_EXISTS) {
pr_notice("another device driver is already handling %s events\n",
ibm->name);
} else {
pr_err("acpi_install_notify_handler(%s) failed: %s\n",
ibm->name, acpi_format_exception(status));
}
return -ENODEV;
}
ibm->flags.acpi_notify_installed = 1;
return 0;
}
static int dispatch_proc_show(struct seq_file *m, void *v)
{
struct ibm_struct *ibm = m->private;
if (!ibm || !ibm->read)
return -EINVAL;
return ibm->read(m);
}
static int dispatch_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, dispatch_proc_show, pde_data(inode));
}
static ssize_t dispatch_proc_write(struct file *file,
const char __user *userbuf,
size_t count, loff_t *pos)
{
struct ibm_struct *ibm = pde_data(file_inode(file));
char *kernbuf;
int ret;
if (!ibm || !ibm->write)
return -EINVAL;
if (count > PAGE_SIZE - 1)
return -EINVAL;
kernbuf = memdup_user_nul(userbuf, count);
if (IS_ERR(kernbuf))
return PTR_ERR(kernbuf);
ret = ibm->write(kernbuf);
if (ret == 0)
ret = count;
kfree(kernbuf);
return ret;
}
static const struct proc_ops dispatch_proc_ops = {
.proc_open = dispatch_proc_open,
.proc_read = seq_read,
.proc_lseek = seq_lseek,
.proc_release = single_release,
.proc_write = dispatch_proc_write,
};
static struct platform_device *tpacpi_pdev;
static struct platform_device *tpacpi_sensors_pdev;
static struct device *tpacpi_hwmon;
static struct device *tpacpi_pprof;
static struct input_dev *tpacpi_inputdev;
static struct mutex tpacpi_inputdev_send_mutex;
static LIST_HEAD(tpacpi_all_drivers);
#ifdef CONFIG_PM_SLEEP
static int tpacpi_suspend_handler(struct device *dev)
{
struct ibm_struct *ibm, *itmp;
list_for_each_entry_safe(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
if (ibm->suspend)
(ibm->suspend)();
}
return 0;
}
static int tpacpi_resume_handler(struct device *dev)
{
struct ibm_struct *ibm, *itmp;
list_for_each_entry_safe(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
if (ibm->resume)
(ibm->resume)();
}
return 0;
}
#endif
static SIMPLE_DEV_PM_OPS(tpacpi_pm,
tpacpi_suspend_handler, tpacpi_resume_handler);
static void tpacpi_shutdown_handler(struct platform_device *pdev)
{
struct ibm_struct *ibm, *itmp;
list_for_each_entry_safe(ibm, itmp,
&tpacpi_all_drivers,
all_drivers) {
if (ibm->shutdown)
(ibm->shutdown)();
}
}
static int parse_strtoul(const char *buf,
unsigned long max, unsigned long *value)
{
char *endp;
*value = simple_strtoul(skip_spaces(buf), &endp, 0);
endp = skip_spaces(endp);
if (*endp || *value > max)
return -EINVAL;
return 0;
}
static void tpacpi_disable_brightness_delay(void)
{
if (acpi_evalf(hkey_handle, NULL, "PWMS", "qvd", 0))
pr_notice("ACPI backlight control delay disabled\n");
}
static void printk_deprecated_attribute(const char * const what,
const char * const details)
{
tpacpi_log_usertask("deprecated sysfs attribute");
pr_warn("WARNING: sysfs attribute %s is deprecated and will be removed. %s\n",
what, details);
}
enum tpacpi_rfkill_state {
TPACPI_RFK_RADIO_OFF = 0,
TPACPI_RFK_RADIO_ON
};
enum tpacpi_rfk_id {
TPACPI_RFK_BLUETOOTH_SW_ID = 0,
TPACPI_RFK_WWAN_SW_ID,
TPACPI_RFK_UWB_SW_ID,
TPACPI_RFK_SW_MAX
};
static const char *tpacpi_rfkill_names[] = {
[TPACPI_RFK_BLUETOOTH_SW_ID] = "bluetooth",
[TPACPI_RFK_WWAN_SW_ID] = "wwan",
[TPACPI_RFK_UWB_SW_ID] = "uwb",
[TPACPI_RFK_SW_MAX] = NULL
};
struct tpacpi_rfk {
struct rfkill *rfkill;
enum tpacpi_rfk_id id;
const struct tpacpi_rfk_ops *ops;
};
struct tpacpi_rfk_ops {
int (*get_status)(void);
int (*set_status)(const enum tpacpi_rfkill_state);
};
static struct tpacpi_rfk *tpacpi_rfkill_switches[TPACPI_RFK_SW_MAX];
static int tpacpi_rfk_update_swstate(const struct tpacpi_rfk *tp_rfk)
{
int status;
if (!tp_rfk)
return -ENODEV;
status = (tp_rfk->ops->get_status)();
if (status < 0)
return status;
rfkill_set_sw_state(tp_rfk->rfkill,
(status == TPACPI_RFK_RADIO_OFF));
return status;
}
static void tpacpi_rfk_update_hwblock_state(bool blocked)
{
unsigned int i;
struct tpacpi_rfk *tp_rfk;
for (i = 0; i < TPACPI_RFK_SW_MAX; i++) {
tp_rfk = tpacpi_rfkill_switches[i];
if (tp_rfk) {
if (rfkill_set_hw_state(tp_rfk->rfkill,
blocked)) {
}
}
}
}
static int hotkey_get_wlsw(void);
static bool tpacpi_rfk_check_hwblock_state(void)
{
int res = hotkey_get_wlsw();
int hw_blocked;
if (res < 0)
return false;
hw_blocked = (res == TPACPI_RFK_RADIO_OFF);
tpacpi_rfk_update_hwblock_state(hw_blocked);
return hw_blocked;
}
static int tpacpi_rfk_hook_set_block(void *data, bool blocked)
{
struct tpacpi_rfk *tp_rfk = data;
int res;
dbg_printk(TPACPI_DBG_RFKILL,
"request to change radio state to %s\n",
blocked ? "blocked" : "unblocked");
res = (tp_rfk->ops->set_status)(blocked ?
TPACPI_RFK_RADIO_OFF : TPACPI_RFK_RADIO_ON);
tpacpi_rfk_update_swstate(tp_rfk);
return (res < 0) ? res : 0;
}
static const struct rfkill_ops tpacpi_rfk_rfkill_ops = {
.set_block = tpacpi_rfk_hook_set_block,
};
static int __init tpacpi_new_rfkill(const enum tpacpi_rfk_id id,
const struct tpacpi_rfk_ops *tp_rfkops,
const enum rfkill_type rfktype,
const char *name,
const bool set_default)
{
struct tpacpi_rfk *atp_rfk;
int res;
bool sw_state = false;
bool hw_state;
int sw_status;
BUG_ON(id >= TPACPI_RFK_SW_MAX || tpacpi_rfkill_switches[id]);
atp_rfk = kzalloc_obj(struct tpacpi_rfk);
if (atp_rfk)
atp_rfk->rfkill = rfkill_alloc(name,
&tpacpi_pdev->dev,
rfktype,
&tpacpi_rfk_rfkill_ops,
atp_rfk);
if (!atp_rfk || !atp_rfk->rfkill) {
pr_err("failed to allocate memory for rfkill class\n");
kfree(atp_rfk);
return -ENOMEM;
}
atp_rfk->id = id;
atp_rfk->ops = tp_rfkops;
sw_status = (tp_rfkops->get_status)();
if (sw_status < 0) {
pr_err("failed to read initial state for %s, error %d\n",
name, sw_status);
} else {
sw_state = (sw_status == TPACPI_RFK_RADIO_OFF);
if (set_default) {
rfkill_init_sw_state(atp_rfk->rfkill, sw_state);
}
}
hw_state = tpacpi_rfk_check_hwblock_state();
rfkill_set_hw_state(atp_rfk->rfkill, hw_state);
res = rfkill_register(atp_rfk->rfkill);
if (res < 0) {
pr_err("failed to register %s rfkill switch: %d\n", name, res);
rfkill_destroy(atp_rfk->rfkill);
kfree(atp_rfk);
return res;
}
tpacpi_rfkill_switches[id] = atp_rfk;
pr_info("rfkill switch %s: radio is %sblocked\n",
name, (sw_state || hw_state) ? "" : "un");
return 0;
}
static void tpacpi_destroy_rfkill(const enum tpacpi_rfk_id id)
{
struct tpacpi_rfk *tp_rfk;
BUG_ON(id >= TPACPI_RFK_SW_MAX);
tp_rfk = tpacpi_rfkill_switches[id];
if (tp_rfk) {
rfkill_unregister(tp_rfk->rfkill);
rfkill_destroy(tp_rfk->rfkill);
tpacpi_rfkill_switches[id] = NULL;
kfree(tp_rfk);
}
}
static void printk_deprecated_rfkill_attribute(const char * const what)
{
printk_deprecated_attribute(what,
"Please switch to generic rfkill before year 2010");
}
static ssize_t tpacpi_rfk_sysfs_enable_show(const enum tpacpi_rfk_id id,
struct device_attribute *attr,
char *buf)
{
int status;
printk_deprecated_rfkill_attribute(attr->attr.name);
if (tpacpi_rfk_check_hwblock_state()) {
status = TPACPI_RFK_RADIO_OFF;
} else {
status = tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
if (status < 0)
return status;
}
return sysfs_emit(buf, "%d\n",
(status == TPACPI_RFK_RADIO_ON) ? 1 : 0);
}
static ssize_t tpacpi_rfk_sysfs_enable_store(const enum tpacpi_rfk_id id,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res;
printk_deprecated_rfkill_attribute(attr->attr.name);
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_disclose_usertask(attr->attr.name, "set to %ld\n", t);
if (tpacpi_rfk_check_hwblock_state() && !!t)
return -EPERM;
res = tpacpi_rfkill_switches[id]->ops->set_status((!!t) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF);
tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
return (res < 0) ? res : count;
}
static int tpacpi_rfk_procfs_read(const enum tpacpi_rfk_id id, struct seq_file *m)
{
if (id >= TPACPI_RFK_SW_MAX)
seq_puts(m, "status:\t\tnot supported\n");
else {
int status;
if (tpacpi_rfk_check_hwblock_state()) {
status = TPACPI_RFK_RADIO_OFF;
} else {
status = tpacpi_rfk_update_swstate(
tpacpi_rfkill_switches[id]);
if (status < 0)
return status;
}
seq_printf(m, "status:\t\t%s\n", str_enabled_disabled(status == TPACPI_RFK_RADIO_ON));
seq_puts(m, "commands:\tenable, disable\n");
}
return 0;
}
static int tpacpi_rfk_procfs_write(const enum tpacpi_rfk_id id, char *buf)
{
char *cmd;
int status = -1;
int res = 0;
if (id >= TPACPI_RFK_SW_MAX)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
if (strstarts(cmd, "enable"))
status = TPACPI_RFK_RADIO_ON;
else if (strstarts(cmd, "disable"))
status = TPACPI_RFK_RADIO_OFF;
else
return -EINVAL;
}
if (status != -1) {
tpacpi_disclose_usertask("procfs", "attempt to %s %s\n",
str_enable_disable(status == TPACPI_RFK_RADIO_ON),
tpacpi_rfkill_names[id]);
res = (tpacpi_rfkill_switches[id]->ops->set_status)(status);
tpacpi_rfk_update_swstate(tpacpi_rfkill_switches[id]);
}
return res;
}
static ssize_t interface_version_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "0x%08x\n", TPACPI_SYSFS_VERSION);
}
static DRIVER_ATTR_RO(interface_version);
static ssize_t debug_level_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "0x%04x\n", dbg_level);
}
static ssize_t debug_level_store(struct device_driver *drv, const char *buf,
size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 0xffff, &t))
return -EINVAL;
dbg_level = t;
return count;
}
static DRIVER_ATTR_RW(debug_level);
static ssize_t version_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%s v%s\n",
TPACPI_DESC, TPACPI_VERSION);
}
static DRIVER_ATTR_RO(version);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static ssize_t wlsw_emulstate_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%d\n", !!tpacpi_wlsw_emulstate);
}
static ssize_t wlsw_emulstate_store(struct device_driver *drv, const char *buf,
size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
if (tpacpi_wlsw_emulstate != !!t) {
tpacpi_wlsw_emulstate = !!t;
tpacpi_rfk_update_hwblock_state(!t);
}
return count;
}
static DRIVER_ATTR_RW(wlsw_emulstate);
static ssize_t bluetooth_emulstate_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%d\n", !!tpacpi_bluetooth_emulstate);
}
static ssize_t bluetooth_emulstate_store(struct device_driver *drv,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_bluetooth_emulstate = !!t;
return count;
}
static DRIVER_ATTR_RW(bluetooth_emulstate);
static ssize_t wwan_emulstate_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%d\n", !!tpacpi_wwan_emulstate);
}
static ssize_t wwan_emulstate_store(struct device_driver *drv, const char *buf,
size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_wwan_emulstate = !!t;
return count;
}
static DRIVER_ATTR_RW(wwan_emulstate);
static ssize_t uwb_emulstate_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%d\n", !!tpacpi_uwb_emulstate);
}
static ssize_t uwb_emulstate_store(struct device_driver *drv, const char *buf,
size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
tpacpi_uwb_emulstate = !!t;
return count;
}
static DRIVER_ATTR_RW(uwb_emulstate);
#endif
#define TPV_Q(__v, __id1, __id2, __bv1, __bv2) \
{ .vendor = (__v), \
.bios = TPID(__id1, __id2), \
.ec = TPACPI_MATCH_ANY, \
.quirks = TPACPI_MATCH_ANY_VERSION << 16 \
| TPVER(__bv1, __bv2) }
#define TPV_Q_X(__v, __bid1, __bid2, __bv1, __bv2, \
__eid, __ev1, __ev2) \
{ .vendor = (__v), \
.bios = TPID(__bid1, __bid2), \
.ec = __eid, \
.quirks = TPVER(__ev1, __ev2) << 16 \
| TPVER(__bv1, __bv2) }
#define TPV_QI0(__id1, __id2, __bv1, __bv2) \
TPV_Q(PCI_VENDOR_ID_IBM, __id1, __id2, __bv1, __bv2)
#define TPV_QI1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \
TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \
__bv1, __bv2, TPID(__id1, __id2), \
__ev1, __ev2), \
TPV_Q_X(PCI_VENDOR_ID_IBM, __id1, __id2, \
__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \
__ev1, __ev2)
#define TPV_QI2(__bid1, __bid2, __bv1, __bv2, \
__eid1, __eid2, __ev1, __ev2) \
TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \
__bv1, __bv2, TPID(__eid1, __eid2), \
__ev1, __ev2), \
TPV_Q_X(PCI_VENDOR_ID_IBM, __bid1, __bid2, \
__bv1, __bv2, TPACPI_MATCH_UNKNOWN, \
__ev1, __ev2)
#define TPV_QL0(__id1, __id2, __bv1, __bv2) \
TPV_Q(PCI_VENDOR_ID_LENOVO, __id1, __id2, __bv1, __bv2)
#define TPV_QL1(__id1, __id2, __bv1, __bv2, __ev1, __ev2) \
TPV_Q_X(PCI_VENDOR_ID_LENOVO, __id1, __id2, \
__bv1, __bv2, TPID(__id1, __id2), \
__ev1, __ev2)
#define TPV_QL2(__bid1, __bid2, __bv1, __bv2, \
__eid1, __eid2, __ev1, __ev2) \
TPV_Q_X(PCI_VENDOR_ID_LENOVO, __bid1, __bid2, \
__bv1, __bv2, TPID(__eid1, __eid2), \
__ev1, __ev2)
static const struct tpacpi_quirk tpacpi_bios_version_qtable[] __initconst = {
TPV_QI0('I', 'M', '6', '5'),
TPV_QI0('I', 'U', '2', '6'),
TPV_QI0('I', 'B', '5', '4'),
TPV_QI0('I', 'H', '4', '7'),
TPV_QI0('I', 'N', '3', '6'),
TPV_QI0('I', 'T', '5', '5'),
TPV_QI0('I', 'D', '4', '8'),
TPV_QI0('I', 'I', '4', '2'),
TPV_QI0('I', 'O', '2', '3'),
TPV_QI0('I', 'W', '5', '9'),
TPV_QI0('I', 'V', '6', '9'),
TPV_QI0('1', '0', '2', '6'),
TPV_QI0('K', 'U', '3', '6'),
TPV_QI0('K', 'X', '3', '6'),
TPV_QI0('K', 'Y', '3', '8'),
TPV_QI0('1', 'B', '1', '7'),
TPV_QI0('1', '3', '2', '0'),
TPV_QI0('1', 'E', '7', '3'),
TPV_QI1('1', 'G', '4', '1', '1', '7'),
TPV_QI1('1', 'N', '1', '6', '0', '7'),
TPV_QI0('1', 'T', 'A', '6'),
TPV_QI0('1', 'X', '5', '7'),
TPV_QI0('1', 'C', 'F', '0'),
TPV_QI0('1', 'F', 'F', '1'),
TPV_QI0('1', 'M', '9', '7'),
TPV_QI0('1', 'O', '6', '1'),
TPV_QI0('1', 'P', '6', '5'),
TPV_QI0('1', 'S', '7', '0'),
TPV_QI1('1', 'R', 'D', 'R', '7', '1'),
TPV_QI1('1', 'V', '7', '1', '2', '8'),
TPV_QI1('7', '8', '7', '1', '0', '6'),
TPV_QI1('7', '6', '6', '9', '1', '6'),
TPV_QI1('7', '0', '6', '9', '2', '8'),
TPV_QI0('I', 'Y', '6', '1'),
TPV_QI0('K', 'Z', '3', '4'),
TPV_QI0('1', '6', '3', '2'),
TPV_QI1('1', 'A', '6', '4', '2', '3'),
TPV_QI1('1', 'I', '7', '1', '2', '0'),
TPV_QI1('1', 'Y', '6', '5', '2', '9'),
TPV_QL1('7', '9', 'E', '3', '5', '0'),
TPV_QL1('7', 'C', 'D', '2', '2', '2'),
TPV_QL1('7', 'E', 'D', '0', '1', '5'),
TPV_QI2('1', 'W', '9', '0', '1', 'V', '2', '8'),
TPV_QL2('7', 'I', '3', '4', '7', '9', '5', '0'),
TPV_QI0('I', 'Z', '9', 'D'),
TPV_QI0('1', 'D', '7', '0'),
TPV_QI1('1', 'K', '4', '8', '1', '8'),
TPV_QI1('1', 'Q', '9', '7', '2', '3'),
TPV_QI1('1', 'U', 'D', '3', 'B', '2'),
TPV_QI1('7', '4', '6', '4', '2', '7'),
TPV_QI1('7', '5', '6', '0', '2', '0'),
TPV_QL1('7', 'B', 'D', '7', '4', '0'),
TPV_QL1('7', 'J', '3', '0', '1', '3'),
};
#undef TPV_QL1
#undef TPV_QL0
#undef TPV_QI2
#undef TPV_QI1
#undef TPV_QI0
#undef TPV_Q_X
#undef TPV_Q
static void __init tpacpi_check_outdated_fw(void)
{
unsigned long fwvers;
u16 ec_version, bios_version;
fwvers = tpacpi_check_quirks(tpacpi_bios_version_qtable,
ARRAY_SIZE(tpacpi_bios_version_qtable));
if (!fwvers)
return;
bios_version = fwvers & 0xffffU;
ec_version = (fwvers >> 16) & 0xffffU;
if ((bios_version > thinkpad_id.bios_release) ||
(ec_version > thinkpad_id.ec_release &&
ec_version != TPACPI_MATCH_ANY_VERSION)) {
pr_warn("WARNING: Outdated ThinkPad BIOS/EC firmware\n");
pr_warn("WARNING: This firmware may be missing critical bug fixes and/or important features\n");
}
}
static bool __init tpacpi_is_fw_known(void)
{
return tpacpi_check_quirks(tpacpi_bios_version_qtable,
ARRAY_SIZE(tpacpi_bios_version_qtable)) != 0;
}
static int thinkpad_acpi_driver_read(struct seq_file *m)
{
seq_printf(m, "driver:\t\t%s\n", TPACPI_DESC);
seq_printf(m, "version:\t%s\n", TPACPI_VERSION);
return 0;
}
static struct ibm_struct thinkpad_acpi_driver_data = {
.name = "driver",
.read = thinkpad_acpi_driver_read,
};
enum {
TP_ACPI_HOTKEYSCAN_FNF1 = 0,
TP_ACPI_HOTKEYSCAN_FNF2,
TP_ACPI_HOTKEYSCAN_FNF3,
TP_ACPI_HOTKEYSCAN_FNF4,
TP_ACPI_HOTKEYSCAN_FNF5,
TP_ACPI_HOTKEYSCAN_FNF6,
TP_ACPI_HOTKEYSCAN_FNF7,
TP_ACPI_HOTKEYSCAN_FNF8,
TP_ACPI_HOTKEYSCAN_FNF9,
TP_ACPI_HOTKEYSCAN_FNF10,
TP_ACPI_HOTKEYSCAN_FNF11,
TP_ACPI_HOTKEYSCAN_FNF12,
TP_ACPI_HOTKEYSCAN_FNBACKSPACE,
TP_ACPI_HOTKEYSCAN_FNINSERT,
TP_ACPI_HOTKEYSCAN_FNDELETE,
TP_ACPI_HOTKEYSCAN_FNHOME,
TP_ACPI_HOTKEYSCAN_FNEND,
TP_ACPI_HOTKEYSCAN_FNPAGEUP,
TP_ACPI_HOTKEYSCAN_FNPAGEDOWN,
TP_ACPI_HOTKEYSCAN_FNSPACE,
TP_ACPI_HOTKEYSCAN_VOLUMEUP,
TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
TP_ACPI_HOTKEYSCAN_MUTE,
TP_ACPI_HOTKEYSCAN_THINKPAD,
TP_ACPI_HOTKEYSCAN_UNK1,
TP_ACPI_HOTKEYSCAN_UNK2,
TP_ACPI_HOTKEYSCAN_MICMUTE,
TP_ACPI_HOTKEYSCAN_UNK4,
TP_ACPI_HOTKEYSCAN_CONFIG,
TP_ACPI_HOTKEYSCAN_SEARCH,
TP_ACPI_HOTKEYSCAN_SCALE,
TP_ACPI_HOTKEYSCAN_FILE,
TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
TP_ACPI_HOTKEYSCAN_MUTE2 = TP_ACPI_HOTKEYSCAN_ADAPTIVE_START,
TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO,
TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL,
TP_ACPI_HOTKEYSCAN_CLOUD,
TP_ACPI_HOTKEYSCAN_UNK9,
TP_ACPI_HOTKEYSCAN_VOICE,
TP_ACPI_HOTKEYSCAN_UNK10,
TP_ACPI_HOTKEYSCAN_GESTURES,
TP_ACPI_HOTKEYSCAN_UNK11,
TP_ACPI_HOTKEYSCAN_UNK12,
TP_ACPI_HOTKEYSCAN_UNK13,
TP_ACPI_HOTKEYSCAN_CONFIG2,
TP_ACPI_HOTKEYSCAN_NEW_TAB,
TP_ACPI_HOTKEYSCAN_RELOAD,
TP_ACPI_HOTKEYSCAN_BACK,
TP_ACPI_HOTKEYSCAN_MIC_DOWN,
TP_ACPI_HOTKEYSCAN_MIC_UP,
TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION,
TP_ACPI_HOTKEYSCAN_CAMERA_MODE,
TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY,
TP_ACPI_HOTKEYSCAN_EXTENDED_START,
TP_ACPI_HOTKEYSCAN_STAR = 69,
TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2,
TP_ACPI_HOTKEYSCAN_CALCULATOR,
TP_ACPI_HOTKEYSCAN_BLUETOOTH,
TP_ACPI_HOTKEYSCAN_KEYBOARD,
TP_ACPI_HOTKEYSCAN_FN_RIGHT_SHIFT,
TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER,
TP_ACPI_HOTKEYSCAN_PICKUP_PHONE,
TP_ACPI_HOTKEYSCAN_HANGUP_PHONE,
};
enum {
TPACPI_HKEY_NVRAM_KNOWN_MASK = 0x00fb88c0U,
TPACPI_HKEY_NVRAM_GOOD_MASK = 0x00fb8000U,
};
enum {
TP_ACPI_HKEY_DISPSWTCH_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF7,
TP_ACPI_HKEY_DISPXPAND_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF8,
TP_ACPI_HKEY_HIBERNATE_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNF12,
TP_ACPI_HKEY_BRGHTUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNHOME,
TP_ACPI_HKEY_BRGHTDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNEND,
TP_ACPI_HKEY_KBD_LIGHT_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNPAGEUP,
TP_ACPI_HKEY_ZOOM_MASK = 1 << TP_ACPI_HOTKEYSCAN_FNSPACE,
TP_ACPI_HKEY_VOLUP_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEUP,
TP_ACPI_HKEY_VOLDWN_MASK = 1 << TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
TP_ACPI_HKEY_MUTE_MASK = 1 << TP_ACPI_HOTKEYSCAN_MUTE,
TP_ACPI_HKEY_THINKPAD_MASK = 1 << TP_ACPI_HOTKEYSCAN_THINKPAD,
};
enum {
TP_NVRAM_HKEY_GROUP_HK2 = TP_ACPI_HKEY_THINKPAD_MASK |
TP_ACPI_HKEY_ZOOM_MASK |
TP_ACPI_HKEY_DISPSWTCH_MASK |
TP_ACPI_HKEY_HIBERNATE_MASK,
TP_NVRAM_HKEY_GROUP_BRIGHTNESS = TP_ACPI_HKEY_BRGHTUP_MASK |
TP_ACPI_HKEY_BRGHTDWN_MASK,
TP_NVRAM_HKEY_GROUP_VOLUME = TP_ACPI_HKEY_VOLUP_MASK |
TP_ACPI_HKEY_VOLDWN_MASK |
TP_ACPI_HKEY_MUTE_MASK,
};
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
struct tp_nvram_state {
u16 thinkpad_toggle:1;
u16 zoom_toggle:1;
u16 display_toggle:1;
u16 thinklight_toggle:1;
u16 hibernate_toggle:1;
u16 displayexp_toggle:1;
u16 display_state:1;
u16 brightness_toggle:1;
u16 volume_toggle:1;
u16 mute:1;
u8 brightness_level;
u8 volume_level;
};
static struct task_struct *tpacpi_hotkey_task;
static struct mutex hotkey_thread_data_mutex;
static unsigned int hotkey_config_change;
static u32 hotkey_source_mask;
static unsigned int hotkey_poll_freq = 10;
#define HOTKEY_CONFIG_CRITICAL_START \
do { \
mutex_lock(&hotkey_thread_data_mutex); \
hotkey_config_change++; \
} while (0);
#define HOTKEY_CONFIG_CRITICAL_END \
mutex_unlock(&hotkey_thread_data_mutex);
#else
#define hotkey_source_mask 0U
#define HOTKEY_CONFIG_CRITICAL_START
#define HOTKEY_CONFIG_CRITICAL_END
#endif
static struct mutex hotkey_mutex;
static enum {
TP_ACPI_WAKEUP_NONE = 0,
TP_ACPI_WAKEUP_BAYEJ,
TP_ACPI_WAKEUP_UNDOCK,
} hotkey_wakeup_reason;
static int hotkey_autosleep_ack;
static u32 hotkey_orig_mask;
static u32 hotkey_all_mask;
static u32 hotkey_adaptive_all_mask;
static u32 hotkey_reserved_mask;
static u32 hotkey_driver_mask;
static u32 hotkey_user_mask;
static u32 hotkey_acpi_mask;
static bool tpacpi_driver_event(const unsigned int hkey_event);
static void hotkey_poll_setup(const bool may_warn);
#define TP_HOTKEY_TABLET_MASK (1 << 3)
enum {
TP_ACPI_MULTI_MODE_INVALID = 0,
TP_ACPI_MULTI_MODE_UNKNOWN = 1 << 0,
TP_ACPI_MULTI_MODE_LAPTOP = 1 << 1,
TP_ACPI_MULTI_MODE_TABLET = 1 << 2,
TP_ACPI_MULTI_MODE_FLAT = 1 << 3,
TP_ACPI_MULTI_MODE_STAND = 1 << 4,
TP_ACPI_MULTI_MODE_TENT = 1 << 5,
TP_ACPI_MULTI_MODE_STAND_TENT = 1 << 6,
};
enum {
TP_ACPI_MULTI_MODE_TABLET_LIKE = TP_ACPI_MULTI_MODE_TABLET |
TP_ACPI_MULTI_MODE_STAND |
TP_ACPI_MULTI_MODE_TENT |
TP_ACPI_MULTI_MODE_STAND_TENT,
};
static int hotkey_get_wlsw(void)
{
int status;
if (!tp_features.hotkey_wlsw)
return -ENODEV;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wlswemul)
return (tpacpi_wlsw_emulstate) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
#endif
if (!acpi_evalf(hkey_handle, &status, "WLSW", "d"))
return -EIO;
return (status) ? TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
}
static int hotkey_gmms_get_tablet_mode(int s, int *has_tablet_mode)
{
int type = (s >> 16) & 0xffff;
int value = s & 0xffff;
int mode = TP_ACPI_MULTI_MODE_INVALID;
int valid_modes = 0;
if (has_tablet_mode)
*has_tablet_mode = 0;
switch (type) {
case 1:
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
TP_ACPI_MULTI_MODE_TABLET |
TP_ACPI_MULTI_MODE_STAND_TENT;
break;
case 2:
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
TP_ACPI_MULTI_MODE_FLAT |
TP_ACPI_MULTI_MODE_TABLET |
TP_ACPI_MULTI_MODE_STAND |
TP_ACPI_MULTI_MODE_TENT;
break;
case 3:
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
TP_ACPI_MULTI_MODE_FLAT;
break;
case 4:
case 5:
valid_modes = TP_ACPI_MULTI_MODE_LAPTOP |
TP_ACPI_MULTI_MODE_FLAT |
TP_ACPI_MULTI_MODE_TABLET |
TP_ACPI_MULTI_MODE_STAND |
TP_ACPI_MULTI_MODE_TENT;
break;
default:
pr_err("Unknown multi mode status type %d with value 0x%04X, please report this to %s\n",
type, value, TPACPI_MAIL);
return 0;
}
if (has_tablet_mode && (valid_modes & TP_ACPI_MULTI_MODE_TABLET_LIKE))
*has_tablet_mode = 1;
switch (value) {
case 1:
mode = TP_ACPI_MULTI_MODE_LAPTOP;
break;
case 2:
mode = TP_ACPI_MULTI_MODE_FLAT;
break;
case 3:
mode = TP_ACPI_MULTI_MODE_TABLET;
break;
case 4:
if (type == 1)
mode = TP_ACPI_MULTI_MODE_STAND_TENT;
else
mode = TP_ACPI_MULTI_MODE_STAND;
break;
case 5:
mode = TP_ACPI_MULTI_MODE_TENT;
break;
default:
if (type == 5 && value == 0xffff) {
pr_warn("Multi mode status is undetected, assuming laptop\n");
return 0;
}
}
if (!(mode & valid_modes)) {
pr_err("Unknown/reserved multi mode value 0x%04X for type %d, please report this to %s\n",
value, type, TPACPI_MAIL);
return 0;
}
return !!(mode & TP_ACPI_MULTI_MODE_TABLET_LIKE);
}
static int hotkey_get_tablet_mode(int *status)
{
int s;
switch (tp_features.hotkey_tablet) {
case TP_HOTKEY_TABLET_USES_MHKG:
if (!acpi_evalf(hkey_handle, &s, "MHKG", "d"))
return -EIO;
*status = ((s & TP_HOTKEY_TABLET_MASK) != 0);
break;
case TP_HOTKEY_TABLET_USES_GMMS:
if (!acpi_evalf(hkey_handle, &s, "GMMS", "dd", 0))
return -EIO;
*status = hotkey_gmms_get_tablet_mode(s, NULL);
break;
default:
break;
}
return 0;
}
static int hotkey_mask_get(void)
{
lockdep_assert_held(&hotkey_mutex);
if (tp_features.hotkey_mask) {
u32 m = 0;
if (!acpi_evalf(hkey_handle, &m, "DHKN", "d"))
return -EIO;
hotkey_acpi_mask = m;
} else {
hotkey_acpi_mask = hotkey_all_mask;
}
hotkey_user_mask &= (hotkey_acpi_mask | hotkey_source_mask);
return 0;
}
static void hotkey_mask_warn_incomplete_mask(void)
{
const u32 wantedmask = hotkey_driver_mask &
~(hotkey_acpi_mask | hotkey_source_mask) &
(hotkey_all_mask | TPACPI_HKEY_NVRAM_KNOWN_MASK);
if (wantedmask)
pr_notice("required events 0x%08x not enabled!\n", wantedmask);
}
static int hotkey_mask_set(u32 mask)
{
int i;
int rc = 0;
const u32 fwmask = mask & ~hotkey_source_mask;
lockdep_assert_held(&hotkey_mutex);
if (tp_features.hotkey_mask) {
for (i = 0; i < 32; i++) {
if (!acpi_evalf(hkey_handle,
NULL, "MHKM", "vdd", i + 1,
!!(mask & (1 << i)))) {
rc = -EIO;
break;
}
}
}
if (!hotkey_mask_get() && !rc && (fwmask & ~hotkey_acpi_mask)) {
pr_notice("asked for hotkey mask 0x%08x, but firmware forced it to 0x%08x\n",
fwmask, hotkey_acpi_mask);
}
if (tpacpi_lifecycle != TPACPI_LIFE_EXITING)
hotkey_mask_warn_incomplete_mask();
return rc;
}
static int hotkey_user_mask_set(const u32 mask)
{
int rc;
lockdep_assert_held(&hotkey_mutex);
if (!tp_warned.hotkey_mask_ff &&
(mask == 0xffff || mask == 0xffffff ||
mask == 0xffffffff)) {
tp_warned.hotkey_mask_ff = 1;
pr_notice("setting the hotkey mask to 0x%08x is likely not the best way to go about it\n",
mask);
pr_notice("please consider using the driver defaults, and refer to up-to-date thinkpad-acpi documentation\n");
}
rc = hotkey_mask_set((mask | hotkey_driver_mask) & ~hotkey_source_mask);
hotkey_user_mask = mask & (hotkey_acpi_mask | hotkey_source_mask);
return rc;
}
static int tpacpi_hotkey_driver_mask_set(const u32 mask)
{
int rc;
if (!tp_features.hotkey) {
hotkey_driver_mask = mask;
return 0;
}
mutex_lock(&hotkey_mutex);
HOTKEY_CONFIG_CRITICAL_START
hotkey_driver_mask = mask;
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
hotkey_source_mask |= (mask & ~hotkey_all_mask);
#endif
HOTKEY_CONFIG_CRITICAL_END
rc = hotkey_mask_set((hotkey_acpi_mask | hotkey_driver_mask) &
~hotkey_source_mask);
hotkey_poll_setup(true);
mutex_unlock(&hotkey_mutex);
return rc;
}
static int hotkey_status_get(int *status)
{
if (!acpi_evalf(hkey_handle, status, "DHKC", "d"))
return -EIO;
return 0;
}
static int hotkey_status_set(bool enable)
{
if (!acpi_evalf(hkey_handle, NULL, "MHKC", "vd", enable ? 1 : 0))
return -EIO;
return 0;
}
static void tpacpi_input_send_tabletsw(void)
{
int state;
if (tp_features.hotkey_tablet &&
!hotkey_get_tablet_mode(&state)) {
mutex_lock(&tpacpi_inputdev_send_mutex);
input_report_switch(tpacpi_inputdev,
SW_TABLET_MODE, !!state);
input_sync(tpacpi_inputdev);
mutex_unlock(&tpacpi_inputdev_send_mutex);
}
}
#define GCES_NO_SHUTTER_DEVICE BIT(31)
static int get_camera_shutter(void)
{
acpi_handle gces_handle;
int output;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GCES", &gces_handle)))
return -ENODEV;
if (!acpi_evalf(gces_handle, &output, NULL, "dd", 0))
return -EIO;
if (output & GCES_NO_SHUTTER_DEVICE)
return -ENODEV;
return output;
}
static bool tpacpi_input_send_key(const u32 hkey, bool *send_acpi_ev)
{
bool known_ev;
u32 scancode;
if (tpacpi_driver_event(hkey))
return true;
if (hkey >= TP_HKEY_EV_ORIG_KEY_START &&
hkey <= TP_HKEY_EV_ORIG_KEY_END) {
scancode = hkey - TP_HKEY_EV_ORIG_KEY_START;
if (!(hotkey_user_mask & (1 << scancode)))
return true;
} else if (hkey >= TP_HKEY_EV_ADAPTIVE_KEY_START &&
hkey <= TP_HKEY_EV_ADAPTIVE_KEY_END) {
scancode = hkey - TP_HKEY_EV_ADAPTIVE_KEY_START +
TP_ACPI_HOTKEYSCAN_ADAPTIVE_START;
} else if (hkey >= TP_HKEY_EV_EXTENDED_KEY_START &&
hkey <= TP_HKEY_EV_EXTENDED_KEY_END) {
scancode = hkey - TP_HKEY_EV_EXTENDED_KEY_START +
TP_ACPI_HOTKEYSCAN_EXTENDED_START;
} else {
if (send_acpi_ev)
*send_acpi_ev = false;
scancode = hkey;
}
mutex_lock(&tpacpi_inputdev_send_mutex);
known_ev = sparse_keymap_report_event(tpacpi_inputdev, scancode, 1, true);
mutex_unlock(&tpacpi_inputdev_send_mutex);
return known_ev;
}
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
static void tpacpi_hotkey_send_key(unsigned int scancode)
{
tpacpi_input_send_key(TP_HKEY_EV_ORIG_KEY_START + scancode, NULL);
}
static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
{
u8 d;
if (m & TP_NVRAM_HKEY_GROUP_HK2) {
d = nvram_read_byte(TP_NVRAM_ADDR_HK2);
n->thinkpad_toggle = !!(d & TP_NVRAM_MASK_HKT_THINKPAD);
n->zoom_toggle = !!(d & TP_NVRAM_MASK_HKT_ZOOM);
n->display_toggle = !!(d & TP_NVRAM_MASK_HKT_DISPLAY);
n->hibernate_toggle = !!(d & TP_NVRAM_MASK_HKT_HIBERNATE);
}
if (m & TP_ACPI_HKEY_KBD_LIGHT_MASK) {
d = nvram_read_byte(TP_NVRAM_ADDR_THINKLIGHT);
n->thinklight_toggle = !!(d & TP_NVRAM_MASK_THINKLIGHT);
}
if (m & TP_ACPI_HKEY_DISPXPAND_MASK) {
d = nvram_read_byte(TP_NVRAM_ADDR_VIDEO);
n->displayexp_toggle =
!!(d & TP_NVRAM_MASK_HKT_DISPEXPND);
}
if (m & TP_NVRAM_HKEY_GROUP_BRIGHTNESS) {
d = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
n->brightness_level = (d & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
n->brightness_toggle =
!!(d & TP_NVRAM_MASK_HKT_BRIGHTNESS);
}
if (m & TP_NVRAM_HKEY_GROUP_VOLUME) {
d = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
n->volume_level = (d & TP_NVRAM_MASK_LEVEL_VOLUME)
>> TP_NVRAM_POS_LEVEL_VOLUME;
n->mute = !!(d & TP_NVRAM_MASK_MUTE);
n->volume_toggle = !!(d & TP_NVRAM_MASK_HKT_VOLUME);
}
}
#define TPACPI_COMPARE_KEY(__scancode, __member) \
do { \
if ((event_mask & (1 << __scancode)) && \
oldn->__member != newn->__member) \
tpacpi_hotkey_send_key(__scancode); \
} while (0)
#define TPACPI_MAY_SEND_KEY(__scancode) \
do { \
if (event_mask & (1 << __scancode)) \
tpacpi_hotkey_send_key(__scancode); \
} while (0)
static void issue_volchange(const unsigned int oldvol,
const unsigned int newvol,
const u32 event_mask)
{
unsigned int i = oldvol;
while (i > newvol) {
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
i--;
}
while (i < newvol) {
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
i++;
}
}
static void issue_brightnesschange(const unsigned int oldbrt,
const unsigned int newbrt,
const u32 event_mask)
{
unsigned int i = oldbrt;
while (i > newbrt) {
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
i--;
}
while (i < newbrt) {
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
i++;
}
}
static void hotkey_compare_and_issue_event(struct tp_nvram_state *oldn,
struct tp_nvram_state *newn,
const u32 event_mask)
{
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_THINKPAD, thinkpad_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNSPACE, zoom_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF7, display_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF12, hibernate_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNPAGEUP, thinklight_toggle);
TPACPI_COMPARE_KEY(TP_ACPI_HOTKEYSCAN_FNF8, displayexp_toggle);
if (newn->mute) {
if (!oldn->mute ||
oldn->volume_toggle != newn->volume_toggle ||
oldn->volume_level != newn->volume_level) {
issue_volchange(oldn->volume_level, newn->volume_level,
event_mask);
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_MUTE);
}
} else {
if (oldn->mute) {
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
}
if (oldn->volume_level != newn->volume_level) {
issue_volchange(oldn->volume_level, newn->volume_level,
event_mask);
} else if (oldn->volume_toggle != newn->volume_toggle) {
if (newn->volume_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEDOWN);
else if (newn->volume_level >= TP_NVRAM_LEVEL_VOLUME_MAX)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_VOLUMEUP);
}
}
if (oldn->brightness_level != newn->brightness_level) {
issue_brightnesschange(oldn->brightness_level,
newn->brightness_level, event_mask);
} else if (oldn->brightness_toggle != newn->brightness_toggle) {
if (newn->brightness_level == 0)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNEND);
else if (newn->brightness_level >= bright_maxlvl
&& !tp_features.bright_unkfw)
TPACPI_MAY_SEND_KEY(TP_ACPI_HOTKEYSCAN_FNHOME);
}
#undef TPACPI_COMPARE_KEY
#undef TPACPI_MAY_SEND_KEY
}
static int hotkey_kthread(void *data)
{
struct tp_nvram_state s[2] = { 0 };
u32 poll_mask, event_mask;
unsigned int si, so;
unsigned long t;
unsigned int change_detector;
unsigned int poll_freq;
bool was_frozen;
if (tpacpi_lifecycle == TPACPI_LIFE_EXITING)
return 0;
set_freezable();
so = 0;
si = 1;
t = 0;
mutex_lock(&hotkey_thread_data_mutex);
change_detector = hotkey_config_change;
poll_mask = hotkey_source_mask;
event_mask = hotkey_source_mask &
(hotkey_driver_mask | hotkey_user_mask);
poll_freq = hotkey_poll_freq;
mutex_unlock(&hotkey_thread_data_mutex);
hotkey_read_nvram(&s[so], poll_mask);
while (!kthread_should_stop()) {
if (t == 0) {
if (likely(poll_freq))
t = 1000/poll_freq;
else
t = 100;
}
t = msleep_interruptible(t);
if (unlikely(kthread_freezable_should_stop(&was_frozen)))
break;
if (t > 0 && !was_frozen)
continue;
mutex_lock(&hotkey_thread_data_mutex);
if (was_frozen || hotkey_config_change != change_detector) {
si = so;
t = 0;
change_detector = hotkey_config_change;
}
poll_mask = hotkey_source_mask;
event_mask = hotkey_source_mask &
(hotkey_driver_mask | hotkey_user_mask);
poll_freq = hotkey_poll_freq;
mutex_unlock(&hotkey_thread_data_mutex);
if (likely(poll_mask)) {
hotkey_read_nvram(&s[si], poll_mask);
if (likely(si != so)) {
hotkey_compare_and_issue_event(&s[so], &s[si],
event_mask);
}
}
so = si;
si ^= 1;
}
return 0;
}
static void hotkey_poll_stop_sync(void)
{
lockdep_assert_held(&hotkey_mutex);
if (tpacpi_hotkey_task) {
kthread_stop(tpacpi_hotkey_task);
tpacpi_hotkey_task = NULL;
}
}
static void hotkey_poll_setup(const bool may_warn)
{
const u32 poll_driver_mask = hotkey_driver_mask & hotkey_source_mask;
const u32 poll_user_mask = hotkey_user_mask & hotkey_source_mask;
lockdep_assert_held(&hotkey_mutex);
if (hotkey_poll_freq > 0 &&
(poll_driver_mask ||
(poll_user_mask && tpacpi_inputdev->users > 0))) {
if (!tpacpi_hotkey_task) {
tpacpi_hotkey_task = kthread_run(hotkey_kthread,
NULL, TPACPI_NVRAM_KTHREAD_NAME);
if (IS_ERR(tpacpi_hotkey_task)) {
tpacpi_hotkey_task = NULL;
pr_err("could not create kernel thread for hotkey polling\n");
}
}
} else {
hotkey_poll_stop_sync();
if (may_warn && (poll_driver_mask || poll_user_mask) &&
hotkey_poll_freq == 0) {
pr_notice("hot keys 0x%08x and/or events 0x%08x require polling, which is currently disabled\n",
poll_user_mask, poll_driver_mask);
}
}
}
static void hotkey_poll_setup_safe(const bool may_warn)
{
mutex_lock(&hotkey_mutex);
hotkey_poll_setup(may_warn);
mutex_unlock(&hotkey_mutex);
}
static void hotkey_poll_set_freq(unsigned int freq)
{
lockdep_assert_held(&hotkey_mutex);
if (!freq)
hotkey_poll_stop_sync();
hotkey_poll_freq = freq;
}
#else
static void hotkey_poll_setup(const bool __unused)
{
}
static void hotkey_poll_setup_safe(const bool __unused)
{
}
static void hotkey_poll_stop_sync(void)
{
}
#endif
static int hotkey_inputdev_open(struct input_dev *dev)
{
switch (tpacpi_lifecycle) {
case TPACPI_LIFE_INIT:
case TPACPI_LIFE_RUNNING:
hotkey_poll_setup_safe(false);
return 0;
case TPACPI_LIFE_EXITING:
return -EBUSY;
}
BUG();
return -EBUSY;
}
static void hotkey_inputdev_close(struct input_dev *dev)
{
if (tpacpi_lifecycle != TPACPI_LIFE_EXITING &&
!(hotkey_source_mask & hotkey_driver_mask))
hotkey_poll_setup_safe(false);
}
static ssize_t hotkey_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res, status;
printk_deprecated_attribute("hotkey_enable",
"Hotkey reporting is always enabled");
res = hotkey_status_get(&status);
if (res)
return res;
return sysfs_emit(buf, "%d\n", status);
}
static ssize_t hotkey_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
printk_deprecated_attribute("hotkey_enable",
"Hotkeys can be disabled through hotkey_mask");
if (parse_strtoul(buf, 1, &t))
return -EINVAL;
if (t == 0)
return -EPERM;
return count;
}
static DEVICE_ATTR_RW(hotkey_enable);
static ssize_t hotkey_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0x%08x\n", hotkey_user_mask);
}
static ssize_t hotkey_mask_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res;
if (parse_strtoul(buf, 0xffffffffUL, &t))
return -EINVAL;
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_user_mask_set(t);
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
hotkey_poll_setup(true);
#endif
mutex_unlock(&hotkey_mutex);
tpacpi_disclose_usertask("hotkey_mask", "set to 0x%08lx\n", t);
return (res) ? res : count;
}
static DEVICE_ATTR_RW(hotkey_mask);
static ssize_t hotkey_bios_enabled_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0\n");
}
static DEVICE_ATTR_RO(hotkey_bios_enabled);
static ssize_t hotkey_bios_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
printk_deprecated_attribute("hotkey_bios_mask",
"This attribute is useless.");
return sysfs_emit(buf, "0x%08x\n", hotkey_orig_mask);
}
static DEVICE_ATTR_RO(hotkey_bios_mask);
static ssize_t hotkey_all_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0x%08x\n",
hotkey_all_mask | hotkey_source_mask);
}
static DEVICE_ATTR_RO(hotkey_all_mask);
static ssize_t hotkey_adaptive_all_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0x%08x\n",
hotkey_adaptive_all_mask | hotkey_source_mask);
}
static DEVICE_ATTR_RO(hotkey_adaptive_all_mask);
static ssize_t hotkey_recommended_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0x%08x\n",
(hotkey_all_mask | hotkey_source_mask)
& ~hotkey_reserved_mask);
}
static DEVICE_ATTR_RO(hotkey_recommended_mask);
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
static ssize_t hotkey_source_mask_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "0x%08x\n", hotkey_source_mask);
}
static ssize_t hotkey_source_mask_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
u32 r_ev;
int rc;
if (parse_strtoul(buf, 0xffffffffUL, &t) ||
((t & ~TPACPI_HKEY_NVRAM_KNOWN_MASK) != 0))
return -EINVAL;
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
HOTKEY_CONFIG_CRITICAL_START
hotkey_source_mask = t;
HOTKEY_CONFIG_CRITICAL_END
rc = hotkey_mask_set((hotkey_user_mask | hotkey_driver_mask) &
~hotkey_source_mask);
hotkey_poll_setup(true);
r_ev = hotkey_driver_mask & ~(hotkey_acpi_mask & hotkey_all_mask)
& ~hotkey_source_mask & TPACPI_HKEY_NVRAM_KNOWN_MASK;
mutex_unlock(&hotkey_mutex);
if (rc < 0)
pr_err("hotkey_source_mask: failed to update the firmware event mask!\n");
if (r_ev)
pr_notice("hotkey_source_mask: some important events were disabled: 0x%04x\n",
r_ev);
tpacpi_disclose_usertask("hotkey_source_mask", "set to 0x%08lx\n", t);
return (rc < 0) ? rc : count;
}
static DEVICE_ATTR_RW(hotkey_source_mask);
static ssize_t hotkey_poll_freq_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%d\n", hotkey_poll_freq);
}
static ssize_t hotkey_poll_freq_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 25, &t))
return -EINVAL;
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
hotkey_poll_set_freq(t);
hotkey_poll_setup(true);
mutex_unlock(&hotkey_mutex);
tpacpi_disclose_usertask("hotkey_poll_freq", "set to %lu\n", t);
return count;
}
static DEVICE_ATTR_RW(hotkey_poll_freq);
#endif
static ssize_t hotkey_radio_sw_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res;
res = hotkey_get_wlsw();
if (res < 0)
return res;
tpacpi_rfk_update_hwblock_state((res == TPACPI_RFK_RADIO_OFF));
return sysfs_emit(buf, "%d\n",
(res == TPACPI_RFK_RADIO_OFF) ? 0 : 1);
}
static DEVICE_ATTR_RO(hotkey_radio_sw);
static void hotkey_radio_sw_notify_change(void)
{
if (tp_features.hotkey_wlsw)
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
"hotkey_radio_sw");
}
static ssize_t hotkey_tablet_mode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res, s;
res = hotkey_get_tablet_mode(&s);
if (res < 0)
return res;
return sysfs_emit(buf, "%d\n", !!s);
}
static DEVICE_ATTR_RO(hotkey_tablet_mode);
static void hotkey_tablet_mode_notify_change(void)
{
if (tp_features.hotkey_tablet)
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
"hotkey_tablet_mode");
}
static ssize_t hotkey_wakeup_reason_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%d\n", hotkey_wakeup_reason);
}
static DEVICE_ATTR(wakeup_reason, S_IRUGO, hotkey_wakeup_reason_show, NULL);
static void hotkey_wakeup_reason_notify_change(void)
{
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
"wakeup_reason");
}
static ssize_t hotkey_wakeup_hotunplug_complete_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%d\n", hotkey_autosleep_ack);
}
static DEVICE_ATTR(wakeup_hotunplug_complete, S_IRUGO,
hotkey_wakeup_hotunplug_complete_show, NULL);
static void hotkey_wakeup_hotunplug_complete_notify_change(void)
{
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL,
"wakeup_hotunplug_complete");
}
static int adaptive_keyboard_get_mode(void);
static int adaptive_keyboard_set_mode(int new_mode);
enum ADAPTIVE_KEY_MODE {
HOME_MODE,
WEB_BROWSER_MODE,
WEB_CONFERENCE_MODE,
FUNCTION_MODE,
LAYFLAT_MODE
};
static ssize_t adaptive_kbd_mode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int current_mode;
current_mode = adaptive_keyboard_get_mode();
if (current_mode < 0)
return current_mode;
return sysfs_emit(buf, "%d\n", current_mode);
}
static ssize_t adaptive_kbd_mode_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res;
if (parse_strtoul(buf, LAYFLAT_MODE, &t))
return -EINVAL;
res = adaptive_keyboard_set_mode(t);
return (res < 0) ? res : count;
}
static DEVICE_ATTR_RW(adaptive_kbd_mode);
static struct attribute *adaptive_kbd_attributes[] = {
&dev_attr_adaptive_kbd_mode.attr,
NULL
};
static umode_t hadaptive_kbd_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return tp_features.has_adaptive_kbd ? attr->mode : 0;
}
static const struct attribute_group adaptive_kbd_attr_group = {
.is_visible = hadaptive_kbd_attr_is_visible,
.attrs = adaptive_kbd_attributes,
};
static ssize_t doubletap_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sysfs_emit(buf, "%d\n", tp_features.trackpoint_doubletap_enable);
}
static ssize_t doubletap_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
bool enable;
int err;
err = kstrtobool(buf, &enable);
if (err)
return err;
tp_features.trackpoint_doubletap_enable = enable;
return count;
}
static DEVICE_ATTR_RW(doubletap_enable);
static struct attribute *hotkey_attributes[] = {
&dev_attr_hotkey_enable.attr,
&dev_attr_hotkey_bios_enabled.attr,
&dev_attr_hotkey_bios_mask.attr,
&dev_attr_wakeup_reason.attr,
&dev_attr_wakeup_hotunplug_complete.attr,
&dev_attr_hotkey_mask.attr,
&dev_attr_hotkey_all_mask.attr,
&dev_attr_hotkey_adaptive_all_mask.attr,
&dev_attr_hotkey_recommended_mask.attr,
&dev_attr_hotkey_tablet_mode.attr,
&dev_attr_hotkey_radio_sw.attr,
&dev_attr_doubletap_enable.attr,
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
&dev_attr_hotkey_source_mask.attr,
&dev_attr_hotkey_poll_freq.attr,
#endif
NULL
};
static umode_t hotkey_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
if (attr == &dev_attr_hotkey_tablet_mode.attr) {
if (!tp_features.hotkey_tablet)
return 0;
} else if (attr == &dev_attr_hotkey_radio_sw.attr) {
if (!tp_features.hotkey_wlsw)
return 0;
}
return attr->mode;
}
static const struct attribute_group hotkey_attr_group = {
.is_visible = hotkey_attr_is_visible,
.attrs = hotkey_attributes,
};
static void tpacpi_send_radiosw_update(void)
{
int wlsw;
wlsw = hotkey_get_wlsw();
if (wlsw == TPACPI_RFK_RADIO_OFF)
tpacpi_rfk_update_hwblock_state(true);
if (wlsw == TPACPI_RFK_RADIO_ON)
tpacpi_rfk_update_hwblock_state(false);
if (!(wlsw < 0)) {
mutex_lock(&tpacpi_inputdev_send_mutex);
input_report_switch(tpacpi_inputdev,
SW_RFKILL_ALL, (wlsw > 0));
input_sync(tpacpi_inputdev);
mutex_unlock(&tpacpi_inputdev_send_mutex);
}
hotkey_radio_sw_notify_change();
}
static void hotkey_exit(void)
{
mutex_lock(&hotkey_mutex);
hotkey_poll_stop_sync();
dbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_HKEY,
"restoring original HKEY status and mask\n");
if (((tp_features.hotkey_mask &&
hotkey_mask_set(hotkey_orig_mask)) |
hotkey_status_set(false)) != 0)
pr_err("failed to restore hot key mask to BIOS defaults\n");
mutex_unlock(&hotkey_mutex);
}
#define TPACPI_HK_Q_INIMASK 0x0001
static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
TPACPI_Q_IBM('I', 'H', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'N', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'D', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'W', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'V', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', '0', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('K', 'U', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('K', 'X', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('K', 'Y', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', 'B', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', '3', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', 'E', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', 'C', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', 'F', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'Y', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('K', 'Z', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', '6', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('I', 'Z', TPACPI_HK_Q_INIMASK),
TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK),
};
static int hotkey_init_tablet_mode(void)
{
int in_tablet_mode = 0, res;
char *type = NULL;
if (acpi_evalf(hkey_handle, &res, "GMMS", "qdd", 0)) {
int has_tablet_mode;
in_tablet_mode = hotkey_gmms_get_tablet_mode(res,
&has_tablet_mode);
if (has_tablet_mode && !dual_accel_detect())
tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_GMMS;
type = "GMMS";
} else if (acpi_evalf(hkey_handle, &res, "MHKG", "qd")) {
tp_features.hotkey_tablet = TP_HOTKEY_TABLET_USES_MHKG;
in_tablet_mode = !!(res & TP_HOTKEY_TABLET_MASK);
type = "MHKG";
}
if (!tp_features.hotkey_tablet)
return 0;
pr_info("Tablet mode switch found (type: %s), currently in %s mode\n",
type, in_tablet_mode ? "tablet" : "laptop");
return in_tablet_mode;
}
static const struct key_entry keymap_ibm[] __initconst = {
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF1, { KEY_FN_F1 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF2, { KEY_BATTERY } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF3, { KEY_COFFEE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF4, { KEY_SLEEP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF5, { KEY_WLAN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF6, { KEY_FN_F6 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF7, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF8, { KEY_FN_F8 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF9, { KEY_FN_F9 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF10, { KEY_FN_F10 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF11, { KEY_FN_F11 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF12, { KEY_SUSPEND } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNHOME, { KEY_BRIGHTNESSUP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNEND, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNPAGEUP, { KEY_KBDILLUMTOGGLE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNSPACE, { KEY_ZOOM } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEUP, { KEY_VOLUMEUP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, { KEY_VOLUMEDOWN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE, { KEY_MUTE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_THINKPAD, { KEY_VENDOR } },
{ KE_END }
};
static const struct key_entry keymap_lenovo[] __initconst = {
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF1, { KEY_FN_F1 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF2, { KEY_COFFEE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF3, { KEY_BATTERY } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF4, { KEY_SLEEP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF5, { KEY_WLAN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF6, { KEY_CAMERA, } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF7, { KEY_SWITCHVIDEOMODE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF8, { KEY_FN_F8 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF9, { KEY_FN_F9 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF10, { KEY_FN_F10 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF11, { KEY_FN_F11 } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNF12, { KEY_SUSPEND } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNHOME, { KEY_BRIGHTNESSUP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNEND, { KEY_BRIGHTNESSDOWN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNPAGEUP, { KEY_KBDILLUMTOGGLE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FNSPACE, { KEY_ZOOM } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEUP, { KEY_VOLUMEUP } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOLUMEDOWN, { KEY_VOLUMEDOWN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE, { KEY_MUTE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_THINKPAD, { KEY_VENDOR } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MICMUTE, { KEY_MICMUTE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CONFIG, { KEY_CONFIG } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_SEARCH, { KEY_SEARCH } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_SCALE, { KEY_SCALE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FILE, { KEY_FILE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MUTE2, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_BRIGHTNESS_ZERO, { KEY_BRIGHTNESS_MIN } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL, { KEY_SELECTIVE_SCREENSHOT } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLOUD, { KEY_XFER } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK9, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_VOICE, { KEY_VOICECOMMAND } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK10, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_GESTURES, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK11, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK12, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_UNK13, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CONFIG2, { KEY_CONFIG } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_NEW_TAB, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_RELOAD, { KEY_REFRESH } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_BACK, { KEY_BACK } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_DOWN, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_UP, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_MIC_CANCELLATION, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CAMERA_MODE, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_ROTATE_DISPLAY, { KEY_RESERVED } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_STAR, { KEY_BOOKMARKS } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CLIPPING_TOOL2, { KEY_SELECTIVE_SCREENSHOT } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_CALCULATOR, { KEY_CALC } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_BLUETOOTH, { KEY_BLUETOOTH } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_KEYBOARD, { KEY_KEYBOARD } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_FN_RIGHT_SHIFT, { KEY_FN_RIGHT_SHIFT } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_NOTIFICATION_CENTER, { KEY_NOTIFICATION_CENTER } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_PICKUP_PHONE, { KEY_PICKUP_PHONE } },
{ KE_KEY, TP_ACPI_HOTKEYSCAN_HANGUP_PHONE, { KEY_HANGUP_PHONE } },
{ KE_KEY, 0x131d, { KEY_VENDOR } },
{ KE_KEY, 0x1320, { KEY_LINK_PHONE } },
{ KE_KEY, 0x1402, { KEY_LINK_PHONE } },
{ KE_KEY, TP_HKEY_EV_TRACK_DOUBLETAP , { KEY_PROG4 } },
{ KE_END }
};
static int __init hotkey_init(struct ibm_init_struct *iibm)
{
enum keymap_index {
TPACPI_KEYMAP_IBM_GENERIC = 0,
TPACPI_KEYMAP_LENOVO_GENERIC,
};
static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = {
{
.vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = TPACPI_KEYMAP_IBM_GENERIC,
},
{
.vendor = PCI_VENDOR_ID_LENOVO,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = TPACPI_KEYMAP_LENOVO_GENERIC,
},
};
unsigned long keymap_id, quirks;
const struct key_entry *keymap;
bool radiosw_state = false;
bool tabletsw_state = false;
int hkeyv, res, status, camera_shutter_state;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"initializing hotkey subdriver\n");
BUG_ON(!tpacpi_inputdev);
BUG_ON(tpacpi_inputdev->open != NULL ||
tpacpi_inputdev->close != NULL);
TPACPI_ACPIHANDLE_INIT(hkey);
mutex_init(&hotkey_mutex);
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
mutex_init(&hotkey_thread_data_mutex);
#endif
tp_features.hotkey = hkey_handle != NULL;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"hotkeys are %s\n",
str_supported(tp_features.hotkey));
if (!tp_features.hotkey)
return -ENODEV;
quirks = tpacpi_check_quirks(tpacpi_hotkey_qtable,
ARRAY_SIZE(tpacpi_hotkey_qtable));
tpacpi_disable_brightness_delay();
if (acpi_evalf(hkey_handle, &hkeyv, "MHKV", "qd")) {
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"firmware HKEY interface version: 0x%x\n",
hkeyv);
switch (hkeyv >> 8) {
case 1:
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
"MHKA", "qd")) {
pr_err("missing MHKA handler, please report this to %s\n",
TPACPI_MAIL);
hotkey_all_mask = 0x080cU;
} else {
tp_features.hotkey_mask = 1;
}
break;
case 2:
if (!acpi_evalf(hkey_handle, &hotkey_all_mask,
"MHKA", "dd", 1)) {
pr_err("missing MHKA handler, please report this to %s\n",
TPACPI_MAIL);
hotkey_all_mask = 0x080cU;
} else {
tp_features.hotkey_mask = 1;
}
if (acpi_evalf(hkey_handle, &hotkey_adaptive_all_mask,
"MHKA", "dd", 2)) {
if (hotkey_adaptive_all_mask != 0)
tp_features.has_adaptive_kbd = true;
} else {
tp_features.has_adaptive_kbd = false;
hotkey_adaptive_all_mask = 0x0U;
}
break;
default:
pr_err("unknown version of the HKEY interface: 0x%x\n",
hkeyv);
pr_err("please report this to %s\n", TPACPI_MAIL);
break;
}
}
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"hotkey masks are %s\n",
str_supported(tp_features.hotkey_mask));
if (!tp_features.hotkey_mask && !hotkey_all_mask &&
(quirks & TPACPI_HK_Q_INIMASK))
hotkey_all_mask = 0x080cU;
if (tp_features.hotkey_mask) {
mutex_lock(&hotkey_mutex);
res = hotkey_mask_get();
mutex_unlock(&hotkey_mutex);
if (res)
return res;
hotkey_orig_mask = hotkey_acpi_mask;
} else {
hotkey_orig_mask = hotkey_all_mask;
hotkey_acpi_mask = hotkey_all_mask;
}
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wlswemul) {
tp_features.hotkey_wlsw = 1;
radiosw_state = !!tpacpi_wlsw_emulstate;
pr_info("radio switch emulation enabled\n");
} else
#endif
if (acpi_evalf(hkey_handle, &status, "WLSW", "qd")) {
tp_features.hotkey_wlsw = 1;
radiosw_state = !!status;
pr_info("radio switch found; radios are %s\n", str_enabled_disabled(status & BIT(0)));
}
tabletsw_state = hotkey_init_tablet_mode();
keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable,
ARRAY_SIZE(tpacpi_keymap_qtable));
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"using keymap number %lu\n", keymap_id);
hotkey_reserved_mask = TP_ACPI_HKEY_KBD_LIGHT_MASK |
TP_ACPI_HKEY_VOLUP_MASK |
TP_ACPI_HKEY_VOLDWN_MASK |
TP_ACPI_HKEY_MUTE_MASK;
if (keymap_id == TPACPI_KEYMAP_IBM_GENERIC) {
hotkey_reserved_mask |= TP_ACPI_HKEY_BRGHTUP_MASK |
TP_ACPI_HKEY_BRGHTDWN_MASK;
keymap = keymap_ibm;
} else {
keymap = keymap_lenovo;
}
res = sparse_keymap_setup(tpacpi_inputdev, keymap, NULL);
if (res)
return res;
camera_shutter_state = get_camera_shutter();
if (camera_shutter_state >= 0) {
input_set_capability(tpacpi_inputdev, EV_SW, SW_CAMERA_LENS_COVER);
input_report_switch(tpacpi_inputdev, SW_CAMERA_LENS_COVER, camera_shutter_state);
}
if (tp_features.hotkey_wlsw) {
input_set_capability(tpacpi_inputdev, EV_SW, SW_RFKILL_ALL);
input_report_switch(tpacpi_inputdev,
SW_RFKILL_ALL, radiosw_state);
}
if (tp_features.hotkey_tablet) {
input_set_capability(tpacpi_inputdev, EV_SW, SW_TABLET_MODE);
input_report_switch(tpacpi_inputdev,
SW_TABLET_MODE, tabletsw_state);
}
if (acpi_video_get_backlight_type() != acpi_backlight_vendor) {
pr_info("This ThinkPad has standard ACPI backlight brightness control, supported by the ACPI video driver\n");
pr_notice("Disabling thinkpad-acpi brightness events by default...\n");
hotkey_reserved_mask |= TP_ACPI_HKEY_BRGHTUP_MASK |
TP_ACPI_HKEY_BRGHTDWN_MASK;
}
#ifdef CONFIG_THINKPAD_ACPI_HOTKEY_POLL
hotkey_source_mask = TPACPI_HKEY_NVRAM_GOOD_MASK
& ~hotkey_all_mask
& ~hotkey_reserved_mask;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"hotkey source mask 0x%08x, polling freq %u\n",
hotkey_source_mask, hotkey_poll_freq);
#endif
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"enabling firmware HKEY event interface...\n");
res = hotkey_status_set(true);
if (res) {
hotkey_exit();
return res;
}
mutex_lock(&hotkey_mutex);
res = hotkey_mask_set(((hotkey_all_mask & ~hotkey_reserved_mask)
| hotkey_driver_mask)
& ~hotkey_source_mask);
mutex_unlock(&hotkey_mutex);
if (res < 0 && res != -ENXIO) {
hotkey_exit();
return res;
}
hotkey_user_mask = (hotkey_acpi_mask | hotkey_source_mask)
& ~hotkey_reserved_mask;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
"initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n",
hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask);
tpacpi_inputdev->open = &hotkey_inputdev_open;
tpacpi_inputdev->close = &hotkey_inputdev_close;
hotkey_poll_setup_safe(true);
tp_features.trackpoint_doubletap_enable = 1;
return 0;
}
static const int adaptive_keyboard_modes[] = {
HOME_MODE,
FUNCTION_MODE
};
static bool adaptive_keyboard_mode_is_saved;
static int adaptive_keyboard_prev_mode;
static int adaptive_keyboard_get_mode(void)
{
int mode = 0;
if (!acpi_evalf(hkey_handle, &mode, "GTRW", "dd", 0)) {
pr_err("Cannot read adaptive keyboard mode\n");
return -EIO;
}
return mode;
}
static int adaptive_keyboard_set_mode(int new_mode)
{
if (new_mode < 0 ||
new_mode > LAYFLAT_MODE)
return -EINVAL;
if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd", new_mode)) {
pr_err("Cannot set adaptive keyboard mode\n");
return -EIO;
}
return 0;
}
static int adaptive_keyboard_get_next_mode(int mode)
{
size_t i;
size_t max_mode = ARRAY_SIZE(adaptive_keyboard_modes) - 1;
for (i = 0; i <= max_mode; i++) {
if (adaptive_keyboard_modes[i] == mode)
break;
}
if (i >= max_mode)
i = 0;
else
i++;
return adaptive_keyboard_modes[i];
}
static void adaptive_keyboard_change_row(void)
{
int mode;
if (adaptive_keyboard_mode_is_saved) {
mode = adaptive_keyboard_prev_mode;
adaptive_keyboard_mode_is_saved = false;
} else {
mode = adaptive_keyboard_get_mode();
if (mode < 0)
return;
mode = adaptive_keyboard_get_next_mode(mode);
}
adaptive_keyboard_set_mode(mode);
}
static void adaptive_keyboard_s_quickview_row(void)
{
int mode;
mode = adaptive_keyboard_get_mode();
if (mode < 0)
return;
adaptive_keyboard_prev_mode = mode;
adaptive_keyboard_mode_is_saved = true;
adaptive_keyboard_set_mode(FUNCTION_MODE);
}
static bool hotkey_notify_hotkey(const u32 hkey, bool *send_acpi_ev)
{
if (hkey >= TP_HKEY_EV_ORIG_KEY_START && hkey <= TP_HKEY_EV_ORIG_KEY_END) {
*send_acpi_ev = false;
unsigned int scancode = hkey - TP_HKEY_EV_ORIG_KEY_START;
if (hotkey_source_mask & (1 << scancode))
return true;
}
return tpacpi_input_send_key(hkey, send_acpi_ev);
}
static bool hotkey_notify_wakeup(const u32 hkey, bool *send_acpi_ev)
{
switch (hkey) {
case TP_HKEY_EV_WKUP_S3_UNDOCK:
case TP_HKEY_EV_WKUP_S4_UNDOCK:
hotkey_wakeup_reason = TP_ACPI_WAKEUP_UNDOCK;
*send_acpi_ev = false;
break;
case TP_HKEY_EV_WKUP_S3_BAYEJ:
case TP_HKEY_EV_WKUP_S4_BAYEJ:
hotkey_wakeup_reason = TP_ACPI_WAKEUP_BAYEJ;
*send_acpi_ev = false;
break;
case TP_HKEY_EV_WKUP_S3_BATLOW:
case TP_HKEY_EV_WKUP_S4_BATLOW:
pr_alert("EMERGENCY WAKEUP: battery almost empty\n");
break;
default:
return false;
}
if (hotkey_wakeup_reason != TP_ACPI_WAKEUP_NONE) {
pr_info("woke up due to a hot-unplug request...\n");
hotkey_wakeup_reason_notify_change();
}
return true;
}
static bool hotkey_notify_dockevent(const u32 hkey, bool *send_acpi_ev)
{
switch (hkey) {
case TP_HKEY_EV_UNDOCK_ACK:
hotkey_autosleep_ack = 1;
pr_info("undocked\n");
hotkey_wakeup_hotunplug_complete_notify_change();
return true;
case TP_HKEY_EV_HOTPLUG_DOCK:
pr_info("docked into hotplug port replicator\n");
return true;
case TP_HKEY_EV_HOTPLUG_UNDOCK:
pr_info("undocked from hotplug port replicator\n");
return true;
case TP_HKEY_EV_KBD_COVER_ATTACH:
case TP_HKEY_EV_KBD_COVER_DETACH:
*send_acpi_ev = false;
return true;
default:
return false;
}
}
static bool hotkey_notify_usrevent(const u32 hkey, bool *send_acpi_ev)
{
switch (hkey) {
case TP_HKEY_EV_PEN_INSERTED:
case TP_HKEY_EV_PEN_REMOVED:
return true;
case TP_HKEY_EV_TABLET_TABLET:
case TP_HKEY_EV_TABLET_NOTEBOOK:
tpacpi_input_send_tabletsw();
hotkey_tablet_mode_notify_change();
*send_acpi_ev = false;
return true;
case TP_HKEY_EV_LID_CLOSE:
case TP_HKEY_EV_LID_OPEN:
case TP_HKEY_EV_BRGHT_CHANGED:
*send_acpi_ev = false;
return true;
default:
return false;
}
}
static void thermal_dump_all_sensors(void);
static void palmsensor_refresh(void);
static bool hotkey_notify_6xxx(const u32 hkey, bool *send_acpi_ev)
{
switch (hkey) {
case TP_HKEY_EV_THM_TABLE_CHANGED:
pr_debug("EC reports: Thermal Table has changed\n");
return true;
case TP_HKEY_EV_THM_CSM_COMPLETED:
pr_debug("EC reports: Thermal Control Command set completed (DYTC)\n");
tpacpi_driver_event(hkey);
return true;
case TP_HKEY_EV_THM_TRANSFM_CHANGED:
pr_debug("EC reports: Thermal Transformation changed (GMTS)\n");
return true;
case TP_HKEY_EV_ALARM_BAT_HOT:
pr_crit("THERMAL ALARM: battery is too hot!\n");
break;
case TP_HKEY_EV_ALARM_BAT_XHOT:
pr_alert("THERMAL EMERGENCY: battery is extremely hot!\n");
break;
case TP_HKEY_EV_ALARM_BAT_LIM_CHANGE:
pr_debug("Battery Info: battery charge threshold changed\n");
return true;
case TP_HKEY_EV_ALARM_SENSOR_HOT:
pr_crit("THERMAL ALARM: a sensor reports something is too hot!\n");
break;
case TP_HKEY_EV_ALARM_SENSOR_XHOT:
pr_alert("THERMAL EMERGENCY: a sensor reports something is extremely hot!\n");
break;
case TP_HKEY_EV_AC_CHANGED:
fallthrough;
case TP_HKEY_EV_KEY_NUMLOCK:
case TP_HKEY_EV_KEY_FN:
*send_acpi_ev = false;
return true;
case TP_HKEY_EV_KEY_FN_ESC:
acpi_evalf(hkey_handle, NULL, "GMKS", "v");
*send_acpi_ev = false;
return true;
case TP_HKEY_EV_TABLET_CHANGED:
tpacpi_input_send_tabletsw();
hotkey_tablet_mode_notify_change();
*send_acpi_ev = false;
return true;
case TP_HKEY_EV_PALM_DETECTED:
case TP_HKEY_EV_PALM_UNDETECTED:
palmsensor_refresh();
return true;
default:
return false;
}
thermal_dump_all_sensors();
return true;
}
static bool hotkey_notify_8xxx(const u32 hkey, bool *send_acpi_ev)
{
switch (hkey) {
case TP_HKEY_EV_TRACK_DOUBLETAP:
if (!tp_features.trackpoint_doubletap_enable)
*send_acpi_ev = false;
return true;
default:
return false;
}
}
static void hotkey_notify(struct ibm_struct *ibm, u32 event)
{
u32 hkey;
bool send_acpi_ev;
bool known_ev;
if (event != 0x80) {
pr_err("unknown HKEY notification event %d\n", event);
acpi_bus_generate_netlink_event(
ibm->acpi->device->pnp.device_class,
dev_name(&ibm->acpi->device->dev),
event, 0);
return;
}
while (1) {
if (!acpi_evalf(hkey_handle, &hkey, "MHKP", "d")) {
pr_err("failed to retrieve HKEY event\n");
return;
}
if (hkey == 0) {
return;
}
send_acpi_ev = true;
known_ev = false;
switch (hkey >> 12) {
case 1:
known_ev = hotkey_notify_hotkey(hkey, &send_acpi_ev);
break;
case 2:
known_ev = hotkey_notify_wakeup(hkey, &send_acpi_ev);
break;
case 3:
switch (hkey) {
case TP_HKEY_EV_BAYEJ_ACK:
hotkey_autosleep_ack = 1;
pr_info("bay ejected\n");
hotkey_wakeup_hotunplug_complete_notify_change();
known_ev = true;
break;
case TP_HKEY_EV_OPTDRV_EJ:
known_ev = true;
break;
}
break;
case 4:
known_ev = hotkey_notify_dockevent(hkey, &send_acpi_ev);
break;
case 5:
known_ev = hotkey_notify_usrevent(hkey, &send_acpi_ev);
break;
case 6:
known_ev = hotkey_notify_6xxx(hkey, &send_acpi_ev);
break;
case 7:
if (tp_features.hotkey_wlsw &&
hkey == TP_HKEY_EV_RFKILL_CHANGED) {
tpacpi_send_radiosw_update();
send_acpi_ev = false;
known_ev = true;
}
break;
case 8:
known_ev = hotkey_notify_8xxx(hkey, &send_acpi_ev);
break;
}
if (!known_ev) {
pr_notice("unhandled HKEY event 0x%04x\n", hkey);
pr_notice("please report the conditions when this event happened to %s\n",
TPACPI_MAIL);
}
if (send_acpi_ev) {
acpi_bus_generate_netlink_event(
ibm->acpi->device->pnp.device_class,
dev_name(&ibm->acpi->device->dev),
event, hkey);
}
}
}
static void hotkey_suspend(void)
{
hotkey_wakeup_reason = TP_ACPI_WAKEUP_NONE;
hotkey_autosleep_ack = 0;
if (tp_features.has_adaptive_kbd) {
if (!acpi_evalf(hkey_handle, &adaptive_keyboard_prev_mode,
"GTRW", "dd", 0)) {
pr_err("Cannot read adaptive keyboard mode.\n");
}
}
}
static void hotkey_resume(void)
{
tpacpi_disable_brightness_delay();
mutex_lock(&hotkey_mutex);
if (hotkey_status_set(true) < 0 ||
hotkey_mask_set(hotkey_acpi_mask) < 0)
pr_err("error while attempting to reset the event firmware interface\n");
mutex_unlock(&hotkey_mutex);
tpacpi_send_radiosw_update();
tpacpi_input_send_tabletsw();
hotkey_tablet_mode_notify_change();
hotkey_wakeup_reason_notify_change();
hotkey_wakeup_hotunplug_complete_notify_change();
hotkey_poll_setup_safe(false);
if (tp_features.has_adaptive_kbd) {
if (!acpi_evalf(hkey_handle, NULL, "STRW", "vd",
adaptive_keyboard_prev_mode)) {
pr_err("Cannot set adaptive keyboard mode.\n");
}
}
}
static int hotkey_read(struct seq_file *m)
{
int res, status;
if (!tp_features.hotkey) {
seq_puts(m, "status:\t\tnot supported\n");
return 0;
}
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
res = hotkey_status_get(&status);
if (!res)
res = hotkey_mask_get();
mutex_unlock(&hotkey_mutex);
if (res)
return res;
seq_printf(m, "status:\t\t%s\n", str_enabled_disabled(status & BIT(0)));
if (hotkey_all_mask) {
seq_printf(m, "mask:\t\t0x%08x\n", hotkey_user_mask);
seq_puts(m, "commands:\tenable, disable, reset, <mask>\n");
} else {
seq_puts(m, "mask:\t\tnot supported\n");
seq_puts(m, "commands:\tenable, disable, reset\n");
}
return 0;
}
static void hotkey_enabledisable_warn(bool enable)
{
tpacpi_log_usertask("procfs hotkey enable/disable");
if (!WARN((tpacpi_lifecycle == TPACPI_LIFE_RUNNING || !enable),
pr_fmt("hotkey enable/disable functionality has been removed from the driver. Hotkeys are always enabled.\n")))
pr_err("Please remove the hotkey=enable module parameter, it is deprecated. Hotkeys are always enabled.\n");
}
static int hotkey_write(char *buf)
{
int res;
u32 mask;
char *cmd;
if (!tp_features.hotkey)
return -ENODEV;
if (mutex_lock_killable(&hotkey_mutex))
return -ERESTARTSYS;
mask = hotkey_user_mask;
res = 0;
while ((cmd = strsep(&buf, ","))) {
if (strstarts(cmd, "enable")) {
hotkey_enabledisable_warn(1);
} else if (strstarts(cmd, "disable")) {
hotkey_enabledisable_warn(0);
res = -EPERM;
} else if (strstarts(cmd, "reset")) {
mask = (hotkey_all_mask | hotkey_source_mask)
& ~hotkey_reserved_mask;
} else if (sscanf(cmd, "0x%x", &mask) == 1) {
} else if (sscanf(cmd, "%x", &mask) == 1) {
} else {
res = -EINVAL;
goto errexit;
}
}
if (!res) {
tpacpi_disclose_usertask("procfs hotkey",
"set mask to 0x%08x\n", mask);
res = hotkey_user_mask_set(mask);
}
errexit:
mutex_unlock(&hotkey_mutex);
return res;
}
static const struct acpi_device_id ibm_htk_device_ids[] = {
{TPACPI_ACPI_IBM_HKEY_HID, 0},
{TPACPI_ACPI_LENOVO_HKEY_HID, 0},
{TPACPI_ACPI_LENOVO_HKEY_V2_HID, 0},
{"", 0},
};
static struct tp_acpi_drv_struct ibm_hotkey_acpidriver = {
.hid = ibm_htk_device_ids,
.notify = hotkey_notify,
.handle = &hkey_handle,
.type = ACPI_DEVICE_NOTIFY,
};
static struct ibm_struct hotkey_driver_data = {
.name = "hotkey",
.read = hotkey_read,
.write = hotkey_write,
.exit = hotkey_exit,
.resume = hotkey_resume,
.suspend = hotkey_suspend,
.acpi = &ibm_hotkey_acpidriver,
};
enum {
TP_ACPI_BLUETOOTH_HWPRESENT = 0x01,
TP_ACPI_BLUETOOTH_RADIOSSW = 0x02,
TP_ACPI_BLUETOOTH_RESUMECTRL = 0x04,
};
enum {
TP_ACPI_BLTH_GET_ULTRAPORT_ID = 0x00,
TP_ACPI_BLTH_GET_PWR_ON_RESUME = 0x01,
TP_ACPI_BLTH_PWR_ON_ON_RESUME = 0x02,
TP_ACPI_BLTH_PWR_OFF_ON_RESUME = 0x03,
TP_ACPI_BLTH_SAVE_STATE = 0x05,
};
#define TPACPI_RFK_BLUETOOTH_SW_NAME "tpacpi_bluetooth_sw"
static int bluetooth_get_status(void)
{
int status;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul)
return (tpacpi_bluetooth_emulstate) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
#endif
if (!acpi_evalf(hkey_handle, &status, "GBDC", "d"))
return -EIO;
return ((status & TP_ACPI_BLUETOOTH_RADIOSSW) != 0) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
}
static int bluetooth_set_status(enum tpacpi_rfkill_state state)
{
int status;
vdbg_printk(TPACPI_DBG_RFKILL, "will attempt to %s bluetooth\n",
str_enable_disable(state == TPACPI_RFK_RADIO_ON));
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul) {
tpacpi_bluetooth_emulstate = (state == TPACPI_RFK_RADIO_ON);
return 0;
}
#endif
if (state == TPACPI_RFK_RADIO_ON)
status = TP_ACPI_BLUETOOTH_RADIOSSW
| TP_ACPI_BLUETOOTH_RESUMECTRL;
else
status = 0;
if (!acpi_evalf(hkey_handle, NULL, "SBDC", "vd", status))
return -EIO;
return 0;
}
static ssize_t bluetooth_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_BLUETOOTH_SW_ID,
attr, buf);
}
static ssize_t bluetooth_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_BLUETOOTH_SW_ID,
attr, buf, count);
}
static DEVICE_ATTR_RW(bluetooth_enable);
static struct attribute *bluetooth_attributes[] = {
&dev_attr_bluetooth_enable.attr,
NULL
};
static umode_t bluetooth_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return tp_features.bluetooth ? attr->mode : 0;
}
static const struct attribute_group bluetooth_attr_group = {
.is_visible = bluetooth_attr_is_visible,
.attrs = bluetooth_attributes,
};
static const struct tpacpi_rfk_ops bluetooth_tprfk_ops = {
.get_status = bluetooth_get_status,
.set_status = bluetooth_set_status,
};
static void bluetooth_shutdown(void)
{
if (!acpi_evalf(NULL, NULL, "\\BLTH", "vd",
TP_ACPI_BLTH_SAVE_STATE))
pr_notice("failed to save bluetooth state to NVRAM\n");
else
vdbg_printk(TPACPI_DBG_RFKILL,
"bluetooth state saved to NVRAM\n");
}
static void bluetooth_exit(void)
{
tpacpi_destroy_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID);
bluetooth_shutdown();
}
static const struct dmi_system_id fwbug_list[] __initconst = {
{
.ident = "ThinkPad E485",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20KU"),
},
},
{
.ident = "ThinkPad E585",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20KV"),
},
},
{
.ident = "ThinkPad A285 - 20MW",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MW"),
},
},
{
.ident = "ThinkPad A285 - 20MX",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MX"),
},
},
{
.ident = "ThinkPad A485 - 20MU",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MU"),
},
},
{
.ident = "ThinkPad A485 - 20MV",
.driver_data = &quirk_btusb_bug,
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
DMI_MATCH(DMI_BOARD_NAME, "20MV"),
},
},
{}
};
static const struct pci_device_id fwbug_cards_ids[] __initconst = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24F3) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x24FD) },
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2526) },
{}
};
static int __init have_bt_fwbug(void)
{
if (tp_features.quirks && tp_features.quirks->btusb_bug &&
pci_dev_present(fwbug_cards_ids)) {
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
FW_BUG "disable bluetooth subdriver for Intel cards\n");
return 1;
} else
return 0;
}
static int __init bluetooth_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"initializing bluetooth subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.bluetooth = !have_bt_fwbug() && hkey_handle &&
acpi_evalf(hkey_handle, &status, "GBDC", "qd");
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"bluetooth is %s, status 0x%02x\n",
str_supported(tp_features.bluetooth),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_bluetoothemul) {
tp_features.bluetooth = 1;
pr_info("bluetooth switch emulation enabled\n");
} else
#endif
if (tp_features.bluetooth &&
!(status & TP_ACPI_BLUETOOTH_HWPRESENT)) {
tp_features.bluetooth = 0;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"bluetooth hardware not installed\n");
}
if (!tp_features.bluetooth)
return -ENODEV;
res = tpacpi_new_rfkill(TPACPI_RFK_BLUETOOTH_SW_ID,
&bluetooth_tprfk_ops,
RFKILL_TYPE_BLUETOOTH,
TPACPI_RFK_BLUETOOTH_SW_NAME,
true);
return res;
}
static int bluetooth_read(struct seq_file *m)
{
return tpacpi_rfk_procfs_read(TPACPI_RFK_BLUETOOTH_SW_ID, m);
}
static int bluetooth_write(char *buf)
{
return tpacpi_rfk_procfs_write(TPACPI_RFK_BLUETOOTH_SW_ID, buf);
}
static struct ibm_struct bluetooth_driver_data = {
.name = "bluetooth",
.read = bluetooth_read,
.write = bluetooth_write,
.exit = bluetooth_exit,
.shutdown = bluetooth_shutdown,
};
enum {
TP_ACPI_WANCARD_HWPRESENT = 0x01,
TP_ACPI_WANCARD_RADIOSSW = 0x02,
TP_ACPI_WANCARD_RESUMECTRL = 0x04,
};
#define TPACPI_RFK_WWAN_SW_NAME "tpacpi_wwan_sw"
static int wan_get_status(void)
{
int status;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul)
return (tpacpi_wwan_emulstate) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
#endif
if (!acpi_evalf(hkey_handle, &status, "GWAN", "d"))
return -EIO;
return ((status & TP_ACPI_WANCARD_RADIOSSW) != 0) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
}
static int wan_set_status(enum tpacpi_rfkill_state state)
{
int status;
vdbg_printk(TPACPI_DBG_RFKILL, "will attempt to %s wwan\n",
str_enable_disable(state == TPACPI_RFK_RADIO_ON));
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul) {
tpacpi_wwan_emulstate = (state == TPACPI_RFK_RADIO_ON);
return 0;
}
#endif
if (state == TPACPI_RFK_RADIO_ON)
status = TP_ACPI_WANCARD_RADIOSSW
| TP_ACPI_WANCARD_RESUMECTRL;
else
status = 0;
if (!acpi_evalf(hkey_handle, NULL, "SWAN", "vd", status))
return -EIO;
return 0;
}
static ssize_t wan_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return tpacpi_rfk_sysfs_enable_show(TPACPI_RFK_WWAN_SW_ID,
attr, buf);
}
static ssize_t wan_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return tpacpi_rfk_sysfs_enable_store(TPACPI_RFK_WWAN_SW_ID,
attr, buf, count);
}
static DEVICE_ATTR(wwan_enable, S_IWUSR | S_IRUGO,
wan_enable_show, wan_enable_store);
static struct attribute *wan_attributes[] = {
&dev_attr_wwan_enable.attr,
NULL
};
static umode_t wan_attr_is_visible(struct kobject *kobj, struct attribute *attr,
int n)
{
return tp_features.wan ? attr->mode : 0;
}
static const struct attribute_group wan_attr_group = {
.is_visible = wan_attr_is_visible,
.attrs = wan_attributes,
};
static const struct tpacpi_rfk_ops wan_tprfk_ops = {
.get_status = wan_get_status,
.set_status = wan_set_status,
};
static void wan_shutdown(void)
{
if (!acpi_evalf(NULL, NULL, "\\WGSV", "vd",
TP_ACPI_WGSV_SAVE_STATE))
pr_notice("failed to save WWAN state to NVRAM\n");
else
vdbg_printk(TPACPI_DBG_RFKILL,
"WWAN state saved to NVRAM\n");
}
static void wan_exit(void)
{
tpacpi_destroy_rfkill(TPACPI_RFK_WWAN_SW_ID);
wan_shutdown();
}
static int __init wan_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"initializing wan subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.wan = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GWAN", "qd");
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"wan is %s, status 0x%02x\n",
str_supported(tp_features.wan),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_wwanemul) {
tp_features.wan = 1;
pr_info("wwan switch emulation enabled\n");
} else
#endif
if (tp_features.wan &&
!(status & TP_ACPI_WANCARD_HWPRESENT)) {
tp_features.wan = 0;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"wan hardware not installed\n");
}
if (!tp_features.wan)
return -ENODEV;
res = tpacpi_new_rfkill(TPACPI_RFK_WWAN_SW_ID,
&wan_tprfk_ops,
RFKILL_TYPE_WWAN,
TPACPI_RFK_WWAN_SW_NAME,
true);
return res;
}
static int wan_read(struct seq_file *m)
{
return tpacpi_rfk_procfs_read(TPACPI_RFK_WWAN_SW_ID, m);
}
static int wan_write(char *buf)
{
return tpacpi_rfk_procfs_write(TPACPI_RFK_WWAN_SW_ID, buf);
}
static struct ibm_struct wan_driver_data = {
.name = "wan",
.read = wan_read,
.write = wan_write,
.exit = wan_exit,
.shutdown = wan_shutdown,
};
enum {
TP_ACPI_UWB_HWPRESENT = 0x01,
TP_ACPI_UWB_RADIOSSW = 0x02,
};
#define TPACPI_RFK_UWB_SW_NAME "tpacpi_uwb_sw"
static int uwb_get_status(void)
{
int status;
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul)
return (tpacpi_uwb_emulstate) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
#endif
if (!acpi_evalf(hkey_handle, &status, "GUWB", "d"))
return -EIO;
return ((status & TP_ACPI_UWB_RADIOSSW) != 0) ?
TPACPI_RFK_RADIO_ON : TPACPI_RFK_RADIO_OFF;
}
static int uwb_set_status(enum tpacpi_rfkill_state state)
{
int status;
vdbg_printk(TPACPI_DBG_RFKILL, "will attempt to %s UWB\n",
str_enable_disable(state == TPACPI_RFK_RADIO_ON));
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul) {
tpacpi_uwb_emulstate = (state == TPACPI_RFK_RADIO_ON);
return 0;
}
#endif
if (state == TPACPI_RFK_RADIO_ON)
status = TP_ACPI_UWB_RADIOSSW;
else
status = 0;
if (!acpi_evalf(hkey_handle, NULL, "SUWB", "vd", status))
return -EIO;
return 0;
}
static const struct tpacpi_rfk_ops uwb_tprfk_ops = {
.get_status = uwb_get_status,
.set_status = uwb_set_status,
};
static void uwb_exit(void)
{
tpacpi_destroy_rfkill(TPACPI_RFK_UWB_SW_ID);
}
static int __init uwb_init(struct ibm_init_struct *iibm)
{
int res;
int status = 0;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"initializing uwb subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
tp_features.uwb = hkey_handle &&
acpi_evalf(hkey_handle, &status, "GUWB", "qd");
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_RFKILL,
"uwb is %s, status 0x%02x\n",
str_supported(tp_features.uwb),
status);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
if (dbg_uwbemul) {
tp_features.uwb = 1;
pr_info("uwb switch emulation enabled\n");
} else
#endif
if (tp_features.uwb &&
!(status & TP_ACPI_UWB_HWPRESENT)) {
tp_features.uwb = 0;
dbg_printk(TPACPI_DBG_INIT,
"uwb hardware not installed\n");
}
if (!tp_features.uwb)
return -ENODEV;
res = tpacpi_new_rfkill(TPACPI_RFK_UWB_SW_ID,
&uwb_tprfk_ops,
RFKILL_TYPE_UWB,
TPACPI_RFK_UWB_SW_NAME,
false);
return res;
}
static struct ibm_struct uwb_driver_data = {
.name = "uwb",
.exit = uwb_exit,
.flags.experimental = 1,
};
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
enum video_access_mode {
TPACPI_VIDEO_NONE = 0,
TPACPI_VIDEO_570,
TPACPI_VIDEO_770,
TPACPI_VIDEO_NEW,
};
enum {
TP_ACPI_VIDEO_S_LCD = 0x01,
TP_ACPI_VIDEO_S_CRT = 0x02,
TP_ACPI_VIDEO_S_DVI = 0x08,
};
enum {
TP_ACPI_VIDEO_570_PHSCMD = 0x87,
TP_ACPI_VIDEO_570_PHSMASK = 0x03,
TP_ACPI_VIDEO_570_PHS2CMD = 0x8b,
TP_ACPI_VIDEO_570_PHS2SET = 0x80,
};
static enum video_access_mode video_supported;
static int video_orig_autosw;
static int video_autosw_get(void);
static int video_autosw_set(int enable);
TPACPI_HANDLE(vid, root,
"\\_SB.PCI.AGP.VGA",
"\\_SB.PCI0.AGP0.VID0",
"\\_SB.PCI0.VID0",
"\\_SB.PCI0.VID",
"\\_SB.PCI0.AGP.VGA",
"\\_SB.PCI0.AGP.VID",
);
TPACPI_HANDLE(vid2, root, "\\_SB.PCI0.AGPB.VID");
static int __init video_init(struct ibm_init_struct *iibm)
{
int ivga;
vdbg_printk(TPACPI_DBG_INIT, "initializing video subdriver\n");
TPACPI_ACPIHANDLE_INIT(vid);
if (tpacpi_is_ibm())
TPACPI_ACPIHANDLE_INIT(vid2);
if (vid2_handle && acpi_evalf(NULL, &ivga, "\\IVGA", "d") && ivga)
vid_handle = vid2_handle;
if (!vid_handle)
video_supported = TPACPI_VIDEO_NONE;
else if (tpacpi_is_ibm() &&
acpi_evalf(vid_handle, &video_orig_autosw, "SWIT", "qd"))
video_supported = TPACPI_VIDEO_570;
else if (tpacpi_is_ibm() &&
acpi_evalf(vid_handle, &video_orig_autosw, "^VADL", "qd"))
video_supported = TPACPI_VIDEO_770;
else
video_supported = TPACPI_VIDEO_NEW;
vdbg_printk(TPACPI_DBG_INIT, "video is %s, mode %d\n",
str_supported(video_supported != TPACPI_VIDEO_NONE),
video_supported);
return (video_supported != TPACPI_VIDEO_NONE) ? 0 : -ENODEV;
}
static void video_exit(void)
{
dbg_printk(TPACPI_DBG_EXIT,
"restoring original video autoswitch mode\n");
if (video_autosw_set(video_orig_autosw))
pr_err("error while trying to restore original video autoswitch mode\n");
}
static int video_outputsw_get(void)
{
int status = 0;
int i;
switch (video_supported) {
case TPACPI_VIDEO_570:
if (!acpi_evalf(NULL, &i, "\\_SB.PHS", "dd",
TP_ACPI_VIDEO_570_PHSCMD))
return -EIO;
status = i & TP_ACPI_VIDEO_570_PHSMASK;
break;
case TPACPI_VIDEO_770:
if (!acpi_evalf(NULL, &i, "\\VCDL", "d"))
return -EIO;
if (i)
status |= TP_ACPI_VIDEO_S_LCD;
if (!acpi_evalf(NULL, &i, "\\VCDC", "d"))
return -EIO;
if (i)
status |= TP_ACPI_VIDEO_S_CRT;
break;
case TPACPI_VIDEO_NEW:
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 1) ||
!acpi_evalf(NULL, &i, "\\VCDC", "d"))
return -EIO;
if (i)
status |= TP_ACPI_VIDEO_S_CRT;
if (!acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0) ||
!acpi_evalf(NULL, &i, "\\VCDL", "d"))
return -EIO;
if (i)
status |= TP_ACPI_VIDEO_S_LCD;
if (!acpi_evalf(NULL, &i, "\\VCDD", "d"))
return -EIO;
if (i)
status |= TP_ACPI_VIDEO_S_DVI;
break;
default:
return -ENOSYS;
}
return status;
}
static int video_outputsw_set(int status)
{
int autosw;
int res = 0;
switch (video_supported) {
case TPACPI_VIDEO_570:
res = acpi_evalf(NULL, NULL,
"\\_SB.PHS2", "vdd",
TP_ACPI_VIDEO_570_PHS2CMD,
status | TP_ACPI_VIDEO_570_PHS2SET);
break;
case TPACPI_VIDEO_770:
autosw = video_autosw_get();
if (autosw < 0)
return autosw;
res = video_autosw_set(1);
if (res)
return res;
res = acpi_evalf(vid_handle, NULL,
"ASWT", "vdd", status * 0x100, 0);
if (!autosw && video_autosw_set(autosw)) {
pr_err("video auto-switch left enabled due to error\n");
return -EIO;
}
break;
case TPACPI_VIDEO_NEW:
res = acpi_evalf(NULL, NULL, "\\VUPS", "vd", 0x80) &&
acpi_evalf(NULL, NULL, "\\VSDS", "vdd", status, 1);
break;
default:
return -ENOSYS;
}
return (res) ? 0 : -EIO;
}
static int video_autosw_get(void)
{
int autosw = 0;
switch (video_supported) {
case TPACPI_VIDEO_570:
if (!acpi_evalf(vid_handle, &autosw, "SWIT", "d"))
return -EIO;
break;
case TPACPI_VIDEO_770:
case TPACPI_VIDEO_NEW:
if (!acpi_evalf(vid_handle, &autosw, "^VDEE", "d"))
return -EIO;
break;
default:
return -ENOSYS;
}
return autosw & 1;
}
static int video_autosw_set(int enable)
{
if (!acpi_evalf(vid_handle, NULL, "_DOS", "vd", (enable) ? 1 : 0))
return -EIO;
return 0;
}
static int video_outputsw_cycle(void)
{
int autosw = video_autosw_get();
int res;
if (autosw < 0)
return autosw;
switch (video_supported) {
case TPACPI_VIDEO_570:
res = video_autosw_set(1);
if (res)
return res;
res = acpi_evalf(ec_handle, NULL, "_Q16", "v");
break;
case TPACPI_VIDEO_770:
case TPACPI_VIDEO_NEW:
res = video_autosw_set(1);
if (res)
return res;
res = acpi_evalf(vid_handle, NULL, "VSWT", "v");
break;
default:
return -ENOSYS;
}
if (!autosw && video_autosw_set(autosw)) {
pr_err("video auto-switch left enabled due to error\n");
return -EIO;
}
return (res) ? 0 : -EIO;
}
static int video_expand_toggle(void)
{
switch (video_supported) {
case TPACPI_VIDEO_570:
return acpi_evalf(ec_handle, NULL, "_Q17", "v") ?
0 : -EIO;
case TPACPI_VIDEO_770:
return acpi_evalf(vid_handle, NULL, "VEXP", "v") ?
0 : -EIO;
case TPACPI_VIDEO_NEW:
return acpi_evalf(NULL, NULL, "\\VEXP", "v") ?
0 : -EIO;
default:
return -ENOSYS;
}
}
static int video_read(struct seq_file *m)
{
int status, autosw;
if (video_supported == TPACPI_VIDEO_NONE) {
seq_puts(m, "status:\t\tnot supported\n");
return 0;
}
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
status = video_outputsw_get();
if (status < 0)
return status;
autosw = video_autosw_get();
if (autosw < 0)
return autosw;
seq_puts(m, "status:\t\tsupported\n");
seq_printf(m, "lcd:\t\t%s\n", str_enabled_disabled(status & BIT(0)));
seq_printf(m, "crt:\t\t%s\n", str_enabled_disabled(status & BIT(1)));
if (video_supported == TPACPI_VIDEO_NEW)
seq_printf(m, "dvi:\t\t%s\n", str_enabled_disabled(status & BIT(3)));
seq_printf(m, "auto:\t\t%s\n", str_enabled_disabled(autosw & BIT(0)));
seq_puts(m, "commands:\tlcd_enable, lcd_disable\n");
seq_puts(m, "commands:\tcrt_enable, crt_disable\n");
if (video_supported == TPACPI_VIDEO_NEW)
seq_puts(m, "commands:\tdvi_enable, dvi_disable\n");
seq_puts(m, "commands:\tauto_enable, auto_disable\n");
seq_puts(m, "commands:\tvideo_switch, expand_toggle\n");
return 0;
}
static int video_write(char *buf)
{
char *cmd;
int enable, disable, status;
int res;
if (video_supported == TPACPI_VIDEO_NONE)
return -ENODEV;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
enable = 0;
disable = 0;
while ((cmd = strsep(&buf, ","))) {
if (strstarts(cmd, "lcd_enable")) {
enable |= TP_ACPI_VIDEO_S_LCD;
} else if (strstarts(cmd, "lcd_disable")) {
disable |= TP_ACPI_VIDEO_S_LCD;
} else if (strstarts(cmd, "crt_enable")) {
enable |= TP_ACPI_VIDEO_S_CRT;
} else if (strstarts(cmd, "crt_disable")) {
disable |= TP_ACPI_VIDEO_S_CRT;
} else if (video_supported == TPACPI_VIDEO_NEW &&
strstarts(cmd, "dvi_enable")) {
enable |= TP_ACPI_VIDEO_S_DVI;
} else if (video_supported == TPACPI_VIDEO_NEW &&
strstarts(cmd, "dvi_disable")) {
disable |= TP_ACPI_VIDEO_S_DVI;
} else if (strstarts(cmd, "auto_enable")) {
res = video_autosw_set(1);
if (res)
return res;
} else if (strstarts(cmd, "auto_disable")) {
res = video_autosw_set(0);
if (res)
return res;
} else if (strstarts(cmd, "video_switch")) {
res = video_outputsw_cycle();
if (res)
return res;
} else if (strstarts(cmd, "expand_toggle")) {
res = video_expand_toggle();
if (res)
return res;
} else
return -EINVAL;
}
if (enable || disable) {
status = video_outputsw_get();
if (status < 0)
return status;
res = video_outputsw_set((status & ~disable) | enable);
if (res)
return res;
}
return 0;
}
static struct ibm_struct video_driver_data = {
.name = "video",
.read = video_read,
.write = video_write,
.exit = video_exit,
};
#endif
static enum led_brightness kbdlight_brightness;
static DEFINE_MUTEX(kbdlight_mutex);
static int kbdlight_set_level(int level)
{
int ret = 0;
if (!hkey_handle)
return -ENXIO;
mutex_lock(&kbdlight_mutex);
if (!acpi_evalf(hkey_handle, NULL, "MLCS", "dd", level))
ret = -EIO;
else
kbdlight_brightness = level;
mutex_unlock(&kbdlight_mutex);
return ret;
}
static int kbdlight_get_level(void)
{
int status = 0;
if (!hkey_handle)
return -ENXIO;
if (!acpi_evalf(hkey_handle, &status, "MLCG", "dd", 0))
return -EIO;
if (status < 0)
return status;
return status & 0x3;
}
static bool kbdlight_is_supported(void)
{
int status = 0;
if (!hkey_handle)
return false;
if (!acpi_has_method(hkey_handle, "MLCG")) {
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG is unavailable\n");
return false;
}
if (!acpi_evalf(hkey_handle, &status, "MLCG", "qdd", 0)) {
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG failed\n");
return false;
}
if (status < 0) {
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG err: %d\n", status);
return false;
}
vdbg_printk(TPACPI_DBG_INIT, "kbdlight MLCG returned 0x%x\n", status);
return status & BIT(9);
}
static int kbdlight_sysfs_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
return kbdlight_set_level(brightness);
}
static enum led_brightness kbdlight_sysfs_get(struct led_classdev *led_cdev)
{
int level;
level = kbdlight_get_level();
if (level < 0)
return 0;
return level;
}
static struct tpacpi_led_classdev tpacpi_led_kbdlight = {
.led_classdev = {
.name = "tpacpi::kbd_backlight",
.max_brightness = 2,
.flags = LED_BRIGHT_HW_CHANGED,
.brightness_set_blocking = &kbdlight_sysfs_set,
.brightness_get = &kbdlight_sysfs_get,
}
};
static int __init kbdlight_init(struct ibm_init_struct *iibm)
{
int rc;
vdbg_printk(TPACPI_DBG_INIT, "initializing kbdlight subdriver\n");
TPACPI_ACPIHANDLE_INIT(hkey);
if (!kbdlight_is_supported()) {
tp_features.kbdlight = 0;
vdbg_printk(TPACPI_DBG_INIT, "kbdlight is unsupported\n");
return -ENODEV;
}
kbdlight_brightness = kbdlight_sysfs_get(NULL);
tp_features.kbdlight = 1;
rc = led_classdev_register(&tpacpi_pdev->dev,
&tpacpi_led_kbdlight.led_classdev);
if (rc < 0) {
tp_features.kbdlight = 0;
return rc;
}
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask |
TP_ACPI_HKEY_KBD_LIGHT_MASK);
return 0;
}
static void kbdlight_exit(void)
{
led_classdev_unregister(&tpacpi_led_kbdlight.led_classdev);
}
static int kbdlight_set_level_and_update(int level)
{
int ret;
struct led_classdev *led_cdev;
ret = kbdlight_set_level(level);
led_cdev = &tpacpi_led_kbdlight.led_classdev;
if (ret == 0 && !(led_cdev->flags & LED_SUSPENDED))
led_cdev->brightness = level;
return ret;
}
static int kbdlight_read(struct seq_file *m)
{
int level;
if (!tp_features.kbdlight) {
seq_puts(m, "status:\t\tnot supported\n");
} else {
level = kbdlight_get_level();
if (level < 0)
seq_printf(m, "status:\t\terror %d\n", level);
else
seq_printf(m, "status:\t\t%d\n", level);
seq_puts(m, "commands:\t0, 1, 2\n");
}
return 0;
}
static int kbdlight_write(char *buf)
{
char *cmd;
int res, level = -EINVAL;
if (!tp_features.kbdlight)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
res = kstrtoint(cmd, 10, &level);
if (res < 0)
return res;
}
if (level >= 3 || level < 0)
return -EINVAL;
return kbdlight_set_level_and_update(level);
}
static void kbdlight_suspend(void)
{
struct led_classdev *led_cdev;
if (!tp_features.kbdlight)
return;
led_cdev = &tpacpi_led_kbdlight.led_classdev;
led_update_brightness(led_cdev);
led_classdev_suspend(led_cdev);
}
static void kbdlight_resume(void)
{
if (!tp_features.kbdlight)
return;
led_classdev_resume(&tpacpi_led_kbdlight.led_classdev);
}
static struct ibm_struct kbdlight_driver_data = {
.name = "kbdlight",
.read = kbdlight_read,
.write = kbdlight_write,
.suspend = kbdlight_suspend,
.resume = kbdlight_resume,
.exit = kbdlight_exit,
};
TPACPI_HANDLE(lght, root, "\\LGHT");
TPACPI_HANDLE(ledb, ec, "LEDB");
static int light_get_status(void)
{
int status = 0;
if (tp_features.light_status) {
if (!acpi_evalf(ec_handle, &status, "KBLT", "d"))
return -EIO;
return (!!status);
}
return -ENXIO;
}
static int light_set_status(int status)
{
int rc;
if (tp_features.light) {
if (cmos_handle) {
rc = acpi_evalf(cmos_handle, NULL, NULL, "vd",
(status) ?
TP_CMOS_THINKLIGHT_ON :
TP_CMOS_THINKLIGHT_OFF);
} else {
rc = acpi_evalf(lght_handle, NULL, NULL, "vd",
(status) ? 1 : 0);
}
return (rc) ? 0 : -EIO;
}
return -ENXIO;
}
static int light_sysfs_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
return light_set_status((brightness != LED_OFF) ?
TPACPI_LED_ON : TPACPI_LED_OFF);
}
static enum led_brightness light_sysfs_get(struct led_classdev *led_cdev)
{
return (light_get_status() == 1) ? LED_ON : LED_OFF;
}
static struct tpacpi_led_classdev tpacpi_led_thinklight = {
.led_classdev = {
.name = "tpacpi::thinklight",
.max_brightness = 1,
.brightness_set_blocking = &light_sysfs_set,
.brightness_get = &light_sysfs_get,
}
};
static int __init light_init(struct ibm_init_struct *iibm)
{
int rc;
vdbg_printk(TPACPI_DBG_INIT, "initializing light subdriver\n");
if (tpacpi_is_ibm()) {
TPACPI_ACPIHANDLE_INIT(ledb);
TPACPI_ACPIHANDLE_INIT(lght);
}
TPACPI_ACPIHANDLE_INIT(cmos);
tp_features.light = (cmos_handle || lght_handle) && !ledb_handle;
if (tp_features.light)
tp_features.light_status =
acpi_evalf(ec_handle, NULL, "KBLT", "qv");
vdbg_printk(TPACPI_DBG_INIT, "light is %s, light status is %s\n",
str_supported(tp_features.light),
str_supported(tp_features.light_status));
if (!tp_features.light)
return -ENODEV;
rc = led_classdev_register(&tpacpi_pdev->dev,
&tpacpi_led_thinklight.led_classdev);
if (rc < 0) {
tp_features.light = 0;
tp_features.light_status = 0;
} else {
rc = 0;
}
return rc;
}
static void light_exit(void)
{
led_classdev_unregister(&tpacpi_led_thinklight.led_classdev);
}
static int light_read(struct seq_file *m)
{
int status;
if (!tp_features.light) {
seq_puts(m, "status:\t\tnot supported\n");
} else if (!tp_features.light_status) {
seq_puts(m, "status:\t\tunknown\n");
seq_puts(m, "commands:\ton, off\n");
} else {
status = light_get_status();
if (status < 0)
return status;
seq_printf(m, "status:\t\t%s\n", str_on_off(status & BIT(0)));
seq_puts(m, "commands:\ton, off\n");
}
return 0;
}
static int light_write(char *buf)
{
char *cmd;
int newstatus = 0;
if (!tp_features.light)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
if (strstarts(cmd, "on")) {
newstatus = 1;
} else if (strstarts(cmd, "off")) {
newstatus = 0;
} else
return -EINVAL;
}
return light_set_status(newstatus);
}
static struct ibm_struct light_driver_data = {
.name = "light",
.read = light_read,
.write = light_write,
.exit = light_exit,
};
static ssize_t cmos_command_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long cmos_cmd;
int res;
if (parse_strtoul(buf, 21, &cmos_cmd))
return -EINVAL;
res = issue_thinkpad_cmos_command(cmos_cmd);
return (res) ? res : count;
}
static DEVICE_ATTR_WO(cmos_command);
static struct attribute *cmos_attributes[] = {
&dev_attr_cmos_command.attr,
NULL
};
static umode_t cmos_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return cmos_handle ? attr->mode : 0;
}
static const struct attribute_group cmos_attr_group = {
.is_visible = cmos_attr_is_visible,
.attrs = cmos_attributes,
};
static int __init cmos_init(struct ibm_init_struct *iibm)
{
vdbg_printk(TPACPI_DBG_INIT,
"initializing cmos commands subdriver\n");
TPACPI_ACPIHANDLE_INIT(cmos);
vdbg_printk(TPACPI_DBG_INIT, "cmos commands are %s\n",
str_supported(cmos_handle != NULL));
return cmos_handle ? 0 : -ENODEV;
}
static int cmos_read(struct seq_file *m)
{
if (!cmos_handle)
seq_puts(m, "status:\t\tnot supported\n");
else {
seq_puts(m, "status:\t\tsupported\n");
seq_puts(m, "commands:\t<cmd> (<cmd> is 0-21)\n");
}
return 0;
}
static int cmos_write(char *buf)
{
char *cmd;
int cmos_cmd, res;
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%u", &cmos_cmd) == 1 &&
cmos_cmd >= 0 && cmos_cmd <= 21) {
} else
return -EINVAL;
res = issue_thinkpad_cmos_command(cmos_cmd);
if (res)
return res;
}
return 0;
}
static struct ibm_struct cmos_driver_data = {
.name = "cmos",
.read = cmos_read,
.write = cmos_write,
};
enum led_access_mode {
TPACPI_LED_NONE = 0,
TPACPI_LED_570,
TPACPI_LED_OLD,
TPACPI_LED_NEW,
};
enum {
TPACPI_LED_EC_HLCL = 0x0c,
TPACPI_LED_EC_HLBL = 0x0d,
TPACPI_LED_EC_HLMS = 0x0e,
};
static enum led_access_mode led_supported;
static acpi_handle led_handle;
#define TPACPI_LED_NUMLEDS 16
static struct tpacpi_led_classdev *tpacpi_leds;
static enum led_status_t tpacpi_led_state_cache[TPACPI_LED_NUMLEDS];
static const char * const tpacpi_led_names[TPACPI_LED_NUMLEDS] = {
"tpacpi::power",
"tpacpi:orange:batt",
"tpacpi:green:batt",
"tpacpi::dock_active",
"tpacpi::bay_active",
"tpacpi::dock_batt",
"tpacpi::unknown_led",
"tpacpi::standby",
"tpacpi::dock_status1",
"tpacpi::dock_status2",
"tpacpi::lid_logo_dot",
"tpacpi::unknown_led3",
"tpacpi::thinkvantage",
};
#define TPACPI_SAFE_LEDS 0x1481U
static inline bool tpacpi_is_led_restricted(const unsigned int led)
{
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
return false;
#else
return (1U & (TPACPI_SAFE_LEDS >> led)) == 0;
#endif
}
static int led_get_status(const unsigned int led)
{
int status;
enum led_status_t led_s;
switch (led_supported) {
case TPACPI_LED_570:
if (!acpi_evalf(ec_handle,
&status, "GLED", "dd", 1 << led))
return -EIO;
led_s = (status == 0) ?
TPACPI_LED_OFF :
((status == 1) ?
TPACPI_LED_ON :
TPACPI_LED_BLINK);
tpacpi_led_state_cache[led] = led_s;
return led_s;
default:
return -ENXIO;
}
}
static int led_set_status(const unsigned int led,
const enum led_status_t ledstatus)
{
static const unsigned int led_sled_arg1[] = { 0, 1, 3 };
static const unsigned int led_led_arg1[] = { 0, 0x80, 0xc0 };
int rc = 0;
switch (led_supported) {
case TPACPI_LED_570:
if (unlikely(led > 7))
return -EINVAL;
if (unlikely(tpacpi_is_led_restricted(led)))
return -EPERM;
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
(1 << led), led_sled_arg1[ledstatus]))
return -EIO;
break;
case TPACPI_LED_OLD:
if (unlikely(led > 7))
return -EINVAL;
if (unlikely(tpacpi_is_led_restricted(led)))
return -EPERM;
rc = ec_write(TPACPI_LED_EC_HLMS, (1 << led));
if (rc >= 0)
rc = ec_write(TPACPI_LED_EC_HLBL,
(ledstatus == TPACPI_LED_BLINK) << led);
if (rc >= 0)
rc = ec_write(TPACPI_LED_EC_HLCL,
(ledstatus != TPACPI_LED_OFF) << led);
break;
case TPACPI_LED_NEW:
if (unlikely(led >= TPACPI_LED_NUMLEDS))
return -EINVAL;
if (unlikely(tpacpi_is_led_restricted(led)))
return -EPERM;
if (!acpi_evalf(led_handle, NULL, NULL, "vdd",
led, led_led_arg1[ledstatus]))
return -EIO;
break;
default:
return -ENXIO;
}
if (!rc)
tpacpi_led_state_cache[led] = ledstatus;
return rc;
}
static int led_sysfs_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct tpacpi_led_classdev *data = container_of(led_cdev,
struct tpacpi_led_classdev, led_classdev);
enum led_status_t new_state;
if (brightness == LED_OFF)
new_state = TPACPI_LED_OFF;
else if (tpacpi_led_state_cache[data->led] != TPACPI_LED_BLINK)
new_state = TPACPI_LED_ON;
else
new_state = TPACPI_LED_BLINK;
return led_set_status(data->led, new_state);
}
static int led_sysfs_blink_set(struct led_classdev *led_cdev,
unsigned long *delay_on, unsigned long *delay_off)
{
struct tpacpi_led_classdev *data = container_of(led_cdev,
struct tpacpi_led_classdev, led_classdev);
if (*delay_on == 0 && *delay_off == 0) {
*delay_on = 500;
*delay_off = 500;
} else if ((*delay_on != 500) || (*delay_off != 500))
return -EINVAL;
return led_set_status(data->led, TPACPI_LED_BLINK);
}
static enum led_brightness led_sysfs_get(struct led_classdev *led_cdev)
{
int rc;
struct tpacpi_led_classdev *data = container_of(led_cdev,
struct tpacpi_led_classdev, led_classdev);
rc = led_get_status(data->led);
if (rc == TPACPI_LED_OFF || rc < 0)
rc = LED_OFF;
else
rc = LED_FULL;
return rc;
}
static void led_exit(void)
{
unsigned int i;
for (i = 0; i < TPACPI_LED_NUMLEDS; i++)
led_classdev_unregister(&tpacpi_leds[i].led_classdev);
kfree(tpacpi_leds);
}
static int __init tpacpi_init_led(unsigned int led)
{
if (!tpacpi_led_names[led])
return 0;
tpacpi_leds[led].led_classdev.brightness_set_blocking = &led_sysfs_set;
tpacpi_leds[led].led_classdev.blink_set = &led_sysfs_blink_set;
if (led_supported == TPACPI_LED_570)
tpacpi_leds[led].led_classdev.brightness_get = &led_sysfs_get;
tpacpi_leds[led].led_classdev.name = tpacpi_led_names[led];
tpacpi_leds[led].led_classdev.flags = LED_RETAIN_AT_SHUTDOWN;
tpacpi_leds[led].led = led;
return led_classdev_register(&tpacpi_pdev->dev, &tpacpi_leds[led].led_classdev);
}
static const struct tpacpi_quirk led_useful_qtable[] __initconst = {
TPACPI_Q_IBM('1', 'E', 0x009f),
TPACPI_Q_IBM('1', 'N', 0x009f),
TPACPI_Q_IBM('1', 'G', 0x009f),
TPACPI_Q_IBM('1', 'I', 0x0097),
TPACPI_Q_IBM('1', 'R', 0x0097),
TPACPI_Q_IBM('7', '0', 0x0097),
TPACPI_Q_IBM('1', 'Y', 0x0097),
TPACPI_Q_IBM('1', 'W', 0x0097),
TPACPI_Q_IBM('1', 'V', 0x0097),
TPACPI_Q_IBM('7', '8', 0x0097),
TPACPI_Q_IBM('7', '6', 0x0097),
TPACPI_Q_IBM('1', 'K', 0x00bf),
TPACPI_Q_IBM('1', 'Q', 0x00bf),
TPACPI_Q_IBM('1', 'U', 0x00bf),
TPACPI_Q_IBM('7', '4', 0x00bf),
TPACPI_Q_IBM('7', '5', 0x00bf),
TPACPI_Q_IBM('7', '9', 0x1f97),
TPACPI_Q_IBM('7', '7', 0x1f97),
TPACPI_Q_IBM('7', 'F', 0x1f97),
TPACPI_Q_IBM('7', 'B', 0x1fb7),
{
.vendor = PCI_VENDOR_ID_LENOVO,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = 0x1fffU,
},
{
.vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_UNKNOWN,
.quirks = 0x00ffU,
},
{
.vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
.quirks = 0x00bfU,
},
};
static enum led_access_mode __init led_init_detect_mode(void)
{
acpi_status status;
if (tpacpi_is_ibm()) {
status = acpi_get_handle(ec_handle, "SLED", &led_handle);
if (ACPI_SUCCESS(status))
return TPACPI_LED_570;
status = acpi_get_handle(ec_handle, "SYSL", &led_handle);
if (ACPI_SUCCESS(status))
return TPACPI_LED_OLD;
}
status = acpi_get_handle(ec_handle, "LED", &led_handle);
if (ACPI_SUCCESS(status))
return TPACPI_LED_NEW;
led_handle = NULL;
return TPACPI_LED_NONE;
}
static int __init led_init(struct ibm_init_struct *iibm)
{
unsigned int i;
int rc;
unsigned long useful_leds;
vdbg_printk(TPACPI_DBG_INIT, "initializing LED subdriver\n");
led_supported = led_init_detect_mode();
if (led_supported != TPACPI_LED_NONE) {
useful_leds = tpacpi_check_quirks(led_useful_qtable,
ARRAY_SIZE(led_useful_qtable));
if (!useful_leds) {
led_handle = NULL;
led_supported = TPACPI_LED_NONE;
}
}
vdbg_printk(TPACPI_DBG_INIT, "LED commands are %s, mode %d\n",
str_supported(led_supported), led_supported);
if (led_supported == TPACPI_LED_NONE)
return -ENODEV;
tpacpi_leds = kzalloc_objs(*tpacpi_leds, TPACPI_LED_NUMLEDS);
if (!tpacpi_leds) {
pr_err("Out of memory for LED data\n");
return -ENOMEM;
}
for (i = 0; i < TPACPI_LED_NUMLEDS; i++) {
tpacpi_leds[i].led = -1;
if (!tpacpi_is_led_restricted(i) && test_bit(i, &useful_leds)) {
rc = tpacpi_init_led(i);
if (rc < 0) {
led_exit();
return rc;
}
}
}
#ifdef CONFIG_THINKPAD_ACPI_UNSAFE_LEDS
pr_notice("warning: userspace override of important firmware LEDs is enabled\n");
#endif
return 0;
}
#define str_led_status(s) ((s) >= TPACPI_LED_BLINK ? "blinking" : str_on_off(s))
static int led_read(struct seq_file *m)
{
if (!led_supported) {
seq_puts(m, "status:\t\tnot supported\n");
return 0;
}
seq_puts(m, "status:\t\tsupported\n");
if (led_supported == TPACPI_LED_570) {
int i, status;
for (i = 0; i < 8; i++) {
status = led_get_status(i);
if (status < 0)
return -EIO;
seq_printf(m, "%d:\t\t%s\n", i, str_led_status(status));
}
}
seq_puts(m, "commands:\t<led> on, <led> off, <led> blink (<led> is 0-15)\n");
return 0;
}
static int led_write(char *buf)
{
char *cmd;
int led, rc;
enum led_status_t s;
if (!led_supported)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%d", &led) != 1)
return -EINVAL;
if (led < 0 || led > (TPACPI_LED_NUMLEDS - 1))
return -ENODEV;
if (tpacpi_leds[led].led < 0)
return -ENODEV;
if (strstr(cmd, "off")) {
s = TPACPI_LED_OFF;
} else if (strstr(cmd, "on")) {
s = TPACPI_LED_ON;
} else if (strstr(cmd, "blink")) {
s = TPACPI_LED_BLINK;
} else {
return -EINVAL;
}
rc = led_set_status(led, s);
if (rc < 0)
return rc;
}
return 0;
}
static struct ibm_struct led_driver_data = {
.name = "led",
.read = led_read,
.write = led_write,
.exit = led_exit,
};
TPACPI_HANDLE(beep, ec, "BEEP");
#define TPACPI_BEEP_Q1 0x0001
static const struct tpacpi_quirk beep_quirk_table[] __initconst = {
TPACPI_Q_IBM('I', 'M', TPACPI_BEEP_Q1),
TPACPI_Q_IBM('I', 'U', TPACPI_BEEP_Q1),
};
static int __init beep_init(struct ibm_init_struct *iibm)
{
unsigned long quirks;
vdbg_printk(TPACPI_DBG_INIT, "initializing beep subdriver\n");
TPACPI_ACPIHANDLE_INIT(beep);
vdbg_printk(TPACPI_DBG_INIT, "beep is %s\n",
str_supported(beep_handle != NULL));
quirks = tpacpi_check_quirks(beep_quirk_table,
ARRAY_SIZE(beep_quirk_table));
tp_features.beep_needs_two_args = !!(quirks & TPACPI_BEEP_Q1);
return (beep_handle) ? 0 : -ENODEV;
}
static int beep_read(struct seq_file *m)
{
if (!beep_handle)
seq_puts(m, "status:\t\tnot supported\n");
else {
seq_puts(m, "status:\t\tsupported\n");
seq_puts(m, "commands:\t<cmd> (<cmd> is 0-17)\n");
}
return 0;
}
static int beep_write(char *buf)
{
char *cmd;
int beep_cmd;
if (!beep_handle)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
if (sscanf(cmd, "%u", &beep_cmd) == 1 &&
beep_cmd >= 0 && beep_cmd <= 17) {
} else
return -EINVAL;
if (tp_features.beep_needs_two_args) {
if (!acpi_evalf(beep_handle, NULL, NULL, "vdd",
beep_cmd, 0))
return -EIO;
} else {
if (!acpi_evalf(beep_handle, NULL, NULL, "vd",
beep_cmd))
return -EIO;
}
}
return 0;
}
static struct ibm_struct beep_driver_data = {
.name = "beep",
.read = beep_read,
.write = beep_write,
};
enum thermal_access_mode {
TPACPI_THERMAL_NONE = 0,
TPACPI_THERMAL_ACPI_TMP07,
TPACPI_THERMAL_ACPI_UPDT,
TPACPI_THERMAL_TPEC_8,
TPACPI_THERMAL_TPEC_12,
TPACPI_THERMAL_TPEC_16,
};
enum {
TP_EC_THERMAL_TMP0 = 0x78,
TP_EC_THERMAL_TMP8 = 0xC0,
TP_EC_THERMAL_TMP0_NS = 0xA8,
TP_EC_THERMAL_TMP8_NS = 0xB8,
TP_EC_FUNCREV = 0xEF,
TP_EC_THERMAL_TMP_NA = -128,
TPACPI_THERMAL_SENSOR_NA = -128000,
};
#define TPACPI_MAX_THERMAL_SENSORS 16
struct ibm_thermal_sensors_struct {
s32 temp[TPACPI_MAX_THERMAL_SENSORS];
};
static const struct tpacpi_quirk thermal_quirk_table[] __initconst = {
TPACPI_Q_LNV3('R', '1', 'F', true),
TPACPI_Q_LNV3('N', '2', 'U', true),
TPACPI_Q_LNV3('R', '0', 'R', true),
TPACPI_Q_LNV3('R', '1', '5', true),
TPACPI_Q_LNV3('R', '1', '0', true),
TPACPI_Q_LNV3('N', '2', 'L', true),
TPACPI_Q_LNV3('R', '0', 'T', true),
TPACPI_Q_LNV3('R', '1', 'D', true),
TPACPI_Q_LNV3('R', '0', 'V', true),
};
static enum thermal_access_mode thermal_read_mode;
static bool thermal_use_labels;
static bool thermal_with_ns_address;
static enum thermal_access_mode __init thermal_read_mode_check(void)
{
u8 t, ta1, ta2, ver = 0;
int i;
int acpi_tmp7;
acpi_tmp7 = acpi_evalf(ec_handle, NULL, "TMP7", "qv");
if (thinkpad_id.ec_model) {
if (!acpi_ec_read(TP_EC_FUNCREV, &ver))
pr_warn("Thinkpad ACPI EC unable to access EC version\n");
thermal_with_ns_address = tpacpi_check_quirks(thermal_quirk_table,
ARRAY_SIZE(thermal_quirk_table));
if (thermal_with_ns_address) {
pr_info("ECFW with non-standard thermal registers found\n");
return TPACPI_THERMAL_TPEC_12;
}
ta1 = ta2 = 0;
for (i = 0; i < 8; i++) {
if (acpi_ec_read(TP_EC_THERMAL_TMP0 + i, &t)) {
ta1 |= t;
} else {
ta1 = 0;
break;
}
if (ver < 3) {
if (acpi_ec_read(TP_EC_THERMAL_TMP8 + i, &t)) {
ta2 |= t;
} else {
ta1 = 0;
break;
}
}
}
if (ta1 == 0) {
if (acpi_tmp7) {
pr_err("ThinkPad ACPI EC access misbehaving, falling back to ACPI TMPx access mode\n");
return TPACPI_THERMAL_ACPI_TMP07;
}
pr_err("ThinkPad ACPI EC access misbehaving, disabling thermal sensors access\n");
return TPACPI_THERMAL_NONE;
}
if (ver >= 3) {
thermal_use_labels = true;
return TPACPI_THERMAL_TPEC_8;
}
return (ta2 != 0) ? TPACPI_THERMAL_TPEC_16 : TPACPI_THERMAL_TPEC_8;
}
if (acpi_tmp7) {
if (tpacpi_is_ibm() && acpi_evalf(ec_handle, NULL, "UPDT", "qv")) {
return TPACPI_THERMAL_ACPI_UPDT;
}
return TPACPI_THERMAL_ACPI_TMP07;
}
return TPACPI_THERMAL_NONE;
}
static int thermal_get_sensor(int idx, s32 *value)
{
int t;
s8 tmp;
char tmpi[5];
t = TP_EC_THERMAL_TMP0;
switch (thermal_read_mode) {
#if TPACPI_MAX_THERMAL_SENSORS >= 16
case TPACPI_THERMAL_TPEC_16:
if (idx >= 8 && idx <= 15) {
t = TP_EC_THERMAL_TMP8;
idx -= 8;
}
#endif
fallthrough;
case TPACPI_THERMAL_TPEC_8:
if (idx <= 7) {
if (!acpi_ec_read(t + idx, &tmp))
return -EIO;
*value = tmp * 1000;
return 0;
}
break;
case TPACPI_THERMAL_TPEC_12:
if (idx >= 12)
return -EINVAL;
t = idx < 8 ? TP_EC_THERMAL_TMP0_NS + idx :
TP_EC_THERMAL_TMP8_NS + (idx - 8);
if (!acpi_ec_read(t, &tmp))
return -EIO;
*value = tmp * MILLIDEGREE_PER_DEGREE;
return 0;
case TPACPI_THERMAL_ACPI_UPDT:
if (idx <= 7) {
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
if (!acpi_evalf(ec_handle, NULL, "UPDT", "v"))
return -EIO;
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
return -EIO;
*value = (t - 2732) * 100;
return 0;
}
break;
case TPACPI_THERMAL_ACPI_TMP07:
if (idx <= 7) {
snprintf(tmpi, sizeof(tmpi), "TMP%c", '0' + idx);
if (!acpi_evalf(ec_handle, &t, tmpi, "d"))
return -EIO;
if (t > 127 || t < -127)
t = TP_EC_THERMAL_TMP_NA;
*value = t * 1000;
return 0;
}
break;
case TPACPI_THERMAL_NONE:
default:
return -ENOSYS;
}
return -EINVAL;
}
static int thermal_get_sensors(struct ibm_thermal_sensors_struct *s)
{
int res, i, n;
if (!s)
return -EINVAL;
if (thermal_read_mode == TPACPI_THERMAL_TPEC_16)
n = 16;
else if (thermal_read_mode == TPACPI_THERMAL_TPEC_12)
n = 12;
else
n = 8;
for (i = 0 ; i < n; i++) {
res = thermal_get_sensor(i, &s->temp[i]);
if (res)
return res;
}
return n;
}
static void thermal_dump_all_sensors(void)
{
int n, i;
struct ibm_thermal_sensors_struct t;
n = thermal_get_sensors(&t);
if (n <= 0)
return;
pr_notice("temperatures (Celsius):");
for (i = 0; i < n; i++) {
if (t.temp[i] != TPACPI_THERMAL_SENSOR_NA)
pr_cont(" %d", (int)(t.temp[i] / 1000));
else
pr_cont(" N/A");
}
pr_cont("\n");
}
static ssize_t thermal_temp_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct sensor_device_attribute *sensor_attr =
to_sensor_dev_attr(attr);
int idx = sensor_attr->index;
s32 value;
int res;
res = thermal_get_sensor(idx, &value);
if (res)
return res;
if (value == TPACPI_THERMAL_SENSOR_NA)
return -ENXIO;
return sysfs_emit(buf, "%d\n", value);
}
#define THERMAL_SENSOR_ATTR_TEMP(_idxA, _idxB) \
SENSOR_ATTR(temp##_idxA##_input, S_IRUGO, \
thermal_temp_input_show, NULL, _idxB)
static struct sensor_device_attribute sensor_dev_attr_thermal_temp_input[] = {
THERMAL_SENSOR_ATTR_TEMP(1, 0),
THERMAL_SENSOR_ATTR_TEMP(2, 1),
THERMAL_SENSOR_ATTR_TEMP(3, 2),
THERMAL_SENSOR_ATTR_TEMP(4, 3),
THERMAL_SENSOR_ATTR_TEMP(5, 4),
THERMAL_SENSOR_ATTR_TEMP(6, 5),
THERMAL_SENSOR_ATTR_TEMP(7, 6),
THERMAL_SENSOR_ATTR_TEMP(8, 7),
THERMAL_SENSOR_ATTR_TEMP(9, 8),
THERMAL_SENSOR_ATTR_TEMP(10, 9),
THERMAL_SENSOR_ATTR_TEMP(11, 10),
THERMAL_SENSOR_ATTR_TEMP(12, 11),
THERMAL_SENSOR_ATTR_TEMP(13, 12),
THERMAL_SENSOR_ATTR_TEMP(14, 13),
THERMAL_SENSOR_ATTR_TEMP(15, 14),
THERMAL_SENSOR_ATTR_TEMP(16, 15),
};
#define THERMAL_ATTRS(X) \
&sensor_dev_attr_thermal_temp_input[X].dev_attr.attr
static struct attribute *thermal_temp_input_attr[] = {
THERMAL_ATTRS(0),
THERMAL_ATTRS(1),
THERMAL_ATTRS(2),
THERMAL_ATTRS(3),
THERMAL_ATTRS(4),
THERMAL_ATTRS(5),
THERMAL_ATTRS(6),
THERMAL_ATTRS(7),
THERMAL_ATTRS(8),
THERMAL_ATTRS(9),
THERMAL_ATTRS(10),
THERMAL_ATTRS(11),
THERMAL_ATTRS(12),
THERMAL_ATTRS(13),
THERMAL_ATTRS(14),
THERMAL_ATTRS(15),
NULL
};
#define to_dev_attr(_attr) container_of(_attr, struct device_attribute, attr)
static umode_t thermal_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
struct device_attribute *dev_attr = to_dev_attr(attr);
struct sensor_device_attribute *sensor_attr =
to_sensor_dev_attr(dev_attr);
int idx = sensor_attr->index;
switch (thermal_read_mode) {
case TPACPI_THERMAL_NONE:
return 0;
case TPACPI_THERMAL_ACPI_TMP07:
case TPACPI_THERMAL_ACPI_UPDT:
case TPACPI_THERMAL_TPEC_8:
if (idx >= 8)
return 0;
break;
case TPACPI_THERMAL_TPEC_12:
if (idx >= 12)
return 0;
break;
default:
break;
}
return attr->mode;
}
static const struct attribute_group thermal_attr_group = {
.is_visible = thermal_attr_is_visible,
.attrs = thermal_temp_input_attr,
};
#undef THERMAL_SENSOR_ATTR_TEMP
#undef THERMAL_ATTRS
static ssize_t temp1_label_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return sysfs_emit(buf, "CPU\n");
}
static DEVICE_ATTR_RO(temp1_label);
static ssize_t temp2_label_show(struct device *dev, struct device_attribute *attr, char *buf)
{
return sysfs_emit(buf, "GPU\n");
}
static DEVICE_ATTR_RO(temp2_label);
static struct attribute *temp_label_attributes[] = {
&dev_attr_temp1_label.attr,
&dev_attr_temp2_label.attr,
NULL
};
static umode_t temp_label_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return thermal_use_labels ? attr->mode : 0;
}
static const struct attribute_group temp_label_attr_group = {
.is_visible = temp_label_attr_is_visible,
.attrs = temp_label_attributes,
};
static int __init thermal_init(struct ibm_init_struct *iibm)
{
vdbg_printk(TPACPI_DBG_INIT, "initializing thermal subdriver\n");
thermal_read_mode = thermal_read_mode_check();
vdbg_printk(TPACPI_DBG_INIT, "thermal is %s, mode %d\n",
str_supported(thermal_read_mode != TPACPI_THERMAL_NONE),
thermal_read_mode);
return thermal_read_mode != TPACPI_THERMAL_NONE ? 0 : -ENODEV;
}
static int thermal_read(struct seq_file *m)
{
int n, i;
struct ibm_thermal_sensors_struct t;
n = thermal_get_sensors(&t);
if (unlikely(n < 0))
return n;
seq_puts(m, "temperatures:\t");
if (n > 0) {
for (i = 0; i < (n - 1); i++)
seq_printf(m, "%d ", t.temp[i] / 1000);
seq_printf(m, "%d\n", t.temp[i] / 1000);
} else
seq_puts(m, "not supported\n");
return 0;
}
static struct ibm_struct thermal_driver_data = {
.name = "thermal",
.read = thermal_read,
};
#define TPACPI_BACKLIGHT_DEV_NAME "thinkpad_screen"
enum {
TP_EC_BACKLIGHT = 0x31,
TP_EC_BACKLIGHT_LVLMSK = 0x1F,
TP_EC_BACKLIGHT_CMDMSK = 0xE0,
TP_EC_BACKLIGHT_MAPSW = 0x20,
};
enum tpacpi_brightness_access_mode {
TPACPI_BRGHT_MODE_AUTO = 0,
TPACPI_BRGHT_MODE_EC,
TPACPI_BRGHT_MODE_UCMS_STEP,
TPACPI_BRGHT_MODE_ECNVRAM,
TPACPI_BRGHT_MODE_MAX
};
static struct backlight_device *ibm_backlight_device;
static enum tpacpi_brightness_access_mode brightness_mode =
TPACPI_BRGHT_MODE_MAX;
static unsigned int brightness_enable = 2;
static struct mutex brightness_mutex;
static unsigned int tpacpi_brightness_nvram_get(void)
{
u8 lnvram;
lockdep_assert_held(&brightness_mutex);
lnvram = (nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS)
& TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS;
lnvram &= bright_maxlvl;
return lnvram;
}
static void tpacpi_brightness_checkpoint_nvram(void)
{
u8 lec = 0;
u8 b_nvram;
if (brightness_mode != TPACPI_BRGHT_MODE_ECNVRAM)
return;
vdbg_printk(TPACPI_DBG_BRGHT,
"trying to checkpoint backlight level to NVRAM...\n");
if (mutex_lock_killable(&brightness_mutex) < 0)
return;
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
goto unlock;
lec &= TP_EC_BACKLIGHT_LVLMSK;
b_nvram = nvram_read_byte(TP_NVRAM_ADDR_BRIGHTNESS);
if (lec != ((b_nvram & TP_NVRAM_MASK_LEVEL_BRIGHTNESS)
>> TP_NVRAM_POS_LEVEL_BRIGHTNESS)) {
b_nvram &= ~(TP_NVRAM_MASK_LEVEL_BRIGHTNESS <<
TP_NVRAM_POS_LEVEL_BRIGHTNESS);
b_nvram |= lec;
nvram_write_byte(b_nvram, TP_NVRAM_ADDR_BRIGHTNESS);
dbg_printk(TPACPI_DBG_BRGHT,
"updated NVRAM backlight level to %u (0x%02x)\n",
(unsigned int) lec, (unsigned int) b_nvram);
} else
vdbg_printk(TPACPI_DBG_BRGHT,
"NVRAM backlight level already is %u (0x%02x)\n",
(unsigned int) lec, (unsigned int) b_nvram);
unlock:
mutex_unlock(&brightness_mutex);
}
static int tpacpi_brightness_get_raw(int *status)
{
u8 lec = 0;
lockdep_assert_held(&brightness_mutex);
switch (brightness_mode) {
case TPACPI_BRGHT_MODE_UCMS_STEP:
*status = tpacpi_brightness_nvram_get();
return 0;
case TPACPI_BRGHT_MODE_EC:
case TPACPI_BRGHT_MODE_ECNVRAM:
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
return -EIO;
*status = lec;
return 0;
default:
return -ENXIO;
}
}
static int tpacpi_brightness_set_ec(unsigned int value)
{
u8 lec = 0;
lockdep_assert_held(&brightness_mutex);
if (unlikely(!acpi_ec_read(TP_EC_BACKLIGHT, &lec)))
return -EIO;
if (unlikely(!acpi_ec_write(TP_EC_BACKLIGHT,
(lec & TP_EC_BACKLIGHT_CMDMSK) |
(value & TP_EC_BACKLIGHT_LVLMSK))))
return -EIO;
return 0;
}
static int tpacpi_brightness_set_ucmsstep(unsigned int value)
{
int cmos_cmd, inc;
unsigned int current_value, i;
lockdep_assert_held(&brightness_mutex);
current_value = tpacpi_brightness_nvram_get();
if (value == current_value)
return 0;
cmos_cmd = (value > current_value) ?
TP_CMOS_BRIGHTNESS_UP :
TP_CMOS_BRIGHTNESS_DOWN;
inc = (value > current_value) ? 1 : -1;
for (i = current_value; i != value; i += inc)
if (issue_thinkpad_cmos_command(cmos_cmd))
return -EIO;
return 0;
}
static int brightness_set(unsigned int value)
{
int res;
if (value > bright_maxlvl)
return -EINVAL;
vdbg_printk(TPACPI_DBG_BRGHT,
"set backlight level to %d\n", value);
res = mutex_lock_killable(&brightness_mutex);
if (res < 0)
return res;
switch (brightness_mode) {
case TPACPI_BRGHT_MODE_EC:
case TPACPI_BRGHT_MODE_ECNVRAM:
res = tpacpi_brightness_set_ec(value);
break;
case TPACPI_BRGHT_MODE_UCMS_STEP:
res = tpacpi_brightness_set_ucmsstep(value);
break;
default:
res = -ENXIO;
}
mutex_unlock(&brightness_mutex);
return res;
}
static int brightness_update_status(struct backlight_device *bd)
{
int level = backlight_get_brightness(bd);
dbg_printk(TPACPI_DBG_BRGHT,
"backlight: attempt to set level to %d\n",
level);
return brightness_set(level);
}
static int brightness_get(struct backlight_device *bd)
{
int status, res;
res = mutex_lock_killable(&brightness_mutex);
if (res < 0)
return 0;
res = tpacpi_brightness_get_raw(&status);
mutex_unlock(&brightness_mutex);
if (res < 0)
return 0;
return status & TP_EC_BACKLIGHT_LVLMSK;
}
static void tpacpi_brightness_notify_change(void)
{
backlight_force_update(ibm_backlight_device,
BACKLIGHT_UPDATE_HOTKEY);
}
static const struct backlight_ops ibm_backlight_data = {
.get_brightness = brightness_get,
.update_status = brightness_update_status,
};
static int __init tpacpi_evaluate_bcl(struct acpi_device *adev, void *not_used)
{
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
acpi_status status;
int rc;
status = acpi_evaluate_object(adev->handle, "_BCL", NULL, &buffer);
if (ACPI_FAILURE(status))
return 0;
obj = buffer.pointer;
if (!obj || obj->type != ACPI_TYPE_PACKAGE) {
acpi_handle_info(adev->handle,
"Unknown _BCL data, please report this to %s\n",
TPACPI_MAIL);
rc = 0;
} else {
rc = obj->package.count;
}
kfree(obj);
return rc;
}
static int __init tpacpi_query_bcl_levels(acpi_handle handle)
{
struct acpi_device *device;
device = acpi_fetch_acpi_dev(handle);
if (!device)
return 0;
return acpi_dev_for_each_child(device, tpacpi_evaluate_bcl, NULL);
}
static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
{
acpi_handle video_device;
int bcl_levels = 0;
tpacpi_acpi_handle_locate("video", NULL, &video_device);
if (video_device)
bcl_levels = tpacpi_query_bcl_levels(video_device);
tp_features.bright_acpimode = (bcl_levels > 0);
return (bcl_levels > 2) ? (bcl_levels - 2) : 0;
}
#define TPACPI_BRGHT_Q_NOEC 0x0001
#define TPACPI_BRGHT_Q_EC 0x0002
#define TPACPI_BRGHT_Q_ASK 0x8000
static const struct tpacpi_quirk brightness_quirk_table[] __initconst = {
TPACPI_Q_IBM('1', 'Y', TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('1', 'R', TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('1', 'Q', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('7', '6', TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('7', '8', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('1', 'U', TPACPI_BRGHT_Q_NOEC),
TPACPI_Q_IBM('1', 'V', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('1', 'W', TPACPI_BRGHT_Q_ASK|TPACPI_BRGHT_Q_EC),
TPACPI_Q_IBM('7', '0', TPACPI_BRGHT_Q_NOEC),
TPACPI_Q_IBM('7', '4', TPACPI_BRGHT_Q_NOEC),
TPACPI_Q_IBM('7', '5', TPACPI_BRGHT_Q_NOEC),
};
static void __init tpacpi_detect_brightness_capabilities(void)
{
unsigned int b;
vdbg_printk(TPACPI_DBG_INIT,
"detecting firmware brightness interface capabilities\n");
b = tpacpi_check_std_acpi_brightness_support();
switch (b) {
case 16:
bright_maxlvl = 15;
break;
case 8:
case 0:
bright_maxlvl = 7;
break;
default:
tp_features.bright_unkfw = 1;
bright_maxlvl = b - 1;
}
pr_debug("detected %u brightness levels\n", bright_maxlvl + 1);
}
static int __init brightness_init(struct ibm_init_struct *iibm)
{
struct backlight_properties props;
int b;
unsigned long quirks;
vdbg_printk(TPACPI_DBG_INIT, "initializing brightness subdriver\n");
mutex_init(&brightness_mutex);
quirks = tpacpi_check_quirks(brightness_quirk_table,
ARRAY_SIZE(brightness_quirk_table));
if (tp_features.bright_unkfw)
return -ENODEV;
if (!brightness_enable) {
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
"brightness support disabled by module parameter\n");
return -ENODEV;
}
if (acpi_video_get_backlight_type() != acpi_backlight_vendor) {
if (brightness_enable > 1) {
pr_info("Standard ACPI backlight interface available, not loading native one\n");
return -ENODEV;
} else if (brightness_enable == 1) {
pr_warn("Cannot enable backlight brightness support, ACPI is already handling it. Refer to the acpi_backlight kernel parameter.\n");
return -ENODEV;
}
} else if (!tp_features.bright_acpimode) {
pr_notice("ACPI backlight interface not available\n");
return -ENODEV;
}
pr_notice("ACPI native brightness control enabled\n");
if (brightness_mode > TPACPI_BRGHT_MODE_MAX)
return -EINVAL;
if (brightness_mode == TPACPI_BRGHT_MODE_AUTO ||
brightness_mode == TPACPI_BRGHT_MODE_MAX) {
if (quirks & TPACPI_BRGHT_Q_EC)
brightness_mode = TPACPI_BRGHT_MODE_ECNVRAM;
else
brightness_mode = TPACPI_BRGHT_MODE_UCMS_STEP;
dbg_printk(TPACPI_DBG_BRGHT,
"driver auto-selected brightness_mode=%d\n",
brightness_mode);
}
if (!tpacpi_is_ibm() &&
(brightness_mode == TPACPI_BRGHT_MODE_ECNVRAM ||
brightness_mode == TPACPI_BRGHT_MODE_EC))
return -EINVAL;
if (tpacpi_brightness_get_raw(&b) < 0)
return -ENODEV;
memset(&props, 0, sizeof(struct backlight_properties));
props.type = BACKLIGHT_PLATFORM;
props.max_brightness = bright_maxlvl;
props.brightness = b & TP_EC_BACKLIGHT_LVLMSK;
ibm_backlight_device = backlight_device_register(TPACPI_BACKLIGHT_DEV_NAME,
NULL, NULL,
&ibm_backlight_data,
&props);
if (IS_ERR(ibm_backlight_device)) {
int rc = PTR_ERR(ibm_backlight_device);
ibm_backlight_device = NULL;
pr_err("Could not register backlight device\n");
return rc;
}
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
"brightness is supported\n");
if (quirks & TPACPI_BRGHT_Q_ASK) {
pr_notice("brightness: will use unverified default: brightness_mode=%d\n",
brightness_mode);
pr_notice("brightness: please report to %s whether it works well or not on your ThinkPad\n",
TPACPI_MAIL);
}
backlight_update_status(ibm_backlight_device);
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
"brightness: registering brightness hotkeys as change notification\n");
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
| TP_ACPI_HKEY_BRGHTUP_MASK
| TP_ACPI_HKEY_BRGHTDWN_MASK);
return 0;
}
static void brightness_suspend(void)
{
tpacpi_brightness_checkpoint_nvram();
}
static void brightness_shutdown(void)
{
tpacpi_brightness_checkpoint_nvram();
}
static void brightness_exit(void)
{
if (ibm_backlight_device) {
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_BRGHT,
"calling backlight_device_unregister()\n");
backlight_device_unregister(ibm_backlight_device);
}
tpacpi_brightness_checkpoint_nvram();
}
static int brightness_read(struct seq_file *m)
{
int level;
level = brightness_get(NULL);
if (level < 0) {
seq_puts(m, "level:\t\tunreadable\n");
} else {
seq_printf(m, "level:\t\t%d\n", level);
seq_puts(m, "commands:\tup, down\n");
seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
bright_maxlvl);
}
return 0;
}
static int brightness_write(char *buf)
{
int level;
int rc;
char *cmd;
level = brightness_get(NULL);
if (level < 0)
return level;
while ((cmd = strsep(&buf, ","))) {
if (strstarts(cmd, "up")) {
if (level < bright_maxlvl)
level++;
} else if (strstarts(cmd, "down")) {
if (level > 0)
level--;
} else if (sscanf(cmd, "level %d", &level) == 1 &&
level >= 0 && level <= bright_maxlvl) {
} else
return -EINVAL;
}
tpacpi_disclose_usertask("procfs brightness",
"set level to %d\n", level);
rc = brightness_set(level);
if (!rc && ibm_backlight_device)
backlight_force_update(ibm_backlight_device,
BACKLIGHT_UPDATE_SYSFS);
return (rc == -EINTR) ? -ERESTARTSYS : rc;
}
static struct ibm_struct brightness_driver_data = {
.name = "brightness",
.read = brightness_read,
.write = brightness_write,
.exit = brightness_exit,
.suspend = brightness_suspend,
.shutdown = brightness_shutdown,
};
#ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT
#define TPACPI_ALSA_DRVNAME "ThinkPad EC"
#define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control"
#define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME
#if SNDRV_CARDS <= 32
#define DEFAULT_ALSA_IDX ~((1 << (SNDRV_CARDS - 3)) - 1)
#else
#define DEFAULT_ALSA_IDX ~((1 << (32 - 3)) - 1)
#endif
static int alsa_index = DEFAULT_ALSA_IDX;
static char *alsa_id = "ThinkPadEC";
static bool alsa_enable = SNDRV_DEFAULT_ENABLE1;
struct tpacpi_alsa_data {
struct snd_card *card;
struct snd_ctl_elem_id *ctl_mute_id;
struct snd_ctl_elem_id *ctl_vol_id;
};
static struct snd_card *alsa_card;
enum {
TP_EC_AUDIO = 0x30,
TP_EC_AUDIO_MUTESW = 6,
TP_EC_AUDIO_LVL_MSK = 0x0F,
TP_EC_AUDIO_MUTESW_MSK = (1 << TP_EC_AUDIO_MUTESW),
TP_EC_VOLUME_MAX = 14,
};
enum tpacpi_volume_access_mode {
TPACPI_VOL_MODE_AUTO = 0,
TPACPI_VOL_MODE_EC,
TPACPI_VOL_MODE_UCMS_STEP,
TPACPI_VOL_MODE_ECNVRAM,
TPACPI_VOL_MODE_MAX
};
enum tpacpi_volume_capabilities {
TPACPI_VOL_CAP_AUTO = 0,
TPACPI_VOL_CAP_VOLMUTE,
TPACPI_VOL_CAP_MUTEONLY,
TPACPI_VOL_CAP_MAX
};
enum tpacpi_mute_btn_mode {
TP_EC_MUTE_BTN_LATCH = 0,
TP_EC_MUTE_BTN_NONE = 2,
TP_EC_MUTE_BTN_TOGGLE = 3,
};
static enum tpacpi_volume_access_mode volume_mode =
TPACPI_VOL_MODE_MAX;
static enum tpacpi_volume_capabilities volume_capabilities;
static bool volume_control_allowed;
static bool software_mute_requested = true;
static bool software_mute_active;
static int software_mute_orig_mode;
static struct mutex volume_mutex;
static void tpacpi_volume_checkpoint_nvram(void)
{
u8 lec = 0;
u8 b_nvram;
u8 ec_mask;
if (volume_mode != TPACPI_VOL_MODE_ECNVRAM)
return;
if (!volume_control_allowed)
return;
if (software_mute_active)
return;
vdbg_printk(TPACPI_DBG_MIXER,
"trying to checkpoint mixer state to NVRAM...\n");
if (tp_features.mixer_no_level_control)
ec_mask = TP_EC_AUDIO_MUTESW_MSK;
else
ec_mask = TP_EC_AUDIO_MUTESW_MSK | TP_EC_AUDIO_LVL_MSK;
if (mutex_lock_killable(&volume_mutex) < 0)
return;
if (unlikely(!acpi_ec_read(TP_EC_AUDIO, &lec)))
goto unlock;
lec &= ec_mask;
b_nvram = nvram_read_byte(TP_NVRAM_ADDR_MIXER);
if (lec != (b_nvram & ec_mask)) {
b_nvram &= ~ec_mask;
b_nvram |= lec;
nvram_write_byte(b_nvram, TP_NVRAM_ADDR_MIXER);
dbg_printk(TPACPI_DBG_MIXER,
"updated NVRAM mixer status to 0x%02x (0x%02x)\n",
(unsigned int) lec, (unsigned int) b_nvram);
} else {
vdbg_printk(TPACPI_DBG_MIXER,
"NVRAM mixer status already is 0x%02x (0x%02x)\n",
(unsigned int) lec, (unsigned int) b_nvram);
}
unlock:
mutex_unlock(&volume_mutex);
}
static int volume_get_status_ec(u8 *status)
{
u8 s;
if (!acpi_ec_read(TP_EC_AUDIO, &s))
return -EIO;
*status = s;
dbg_printk(TPACPI_DBG_MIXER, "status 0x%02x\n", s);
return 0;
}
static int volume_get_status(u8 *status)
{
return volume_get_status_ec(status);
}
static int volume_set_status_ec(const u8 status)
{
if (!acpi_ec_write(TP_EC_AUDIO, status))
return -EIO;
dbg_printk(TPACPI_DBG_MIXER, "set EC mixer to 0x%02x\n", status);
msleep(1);
return 0;
}
static int volume_set_status(const u8 status)
{
return volume_set_status_ec(status);
}
static int __volume_set_mute_ec(const bool mute)
{
int rc;
u8 s, n;
if (mutex_lock_killable(&volume_mutex) < 0)
return -EINTR;
rc = volume_get_status_ec(&s);
if (rc)
goto unlock;
n = (mute) ? s | TP_EC_AUDIO_MUTESW_MSK :
s & ~TP_EC_AUDIO_MUTESW_MSK;
if (n != s) {
rc = volume_set_status_ec(n);
if (!rc)
rc = 1;
}
unlock:
mutex_unlock(&volume_mutex);
return rc;
}
static int volume_alsa_set_mute(const bool mute)
{
dbg_printk(TPACPI_DBG_MIXER, "ALSA: trying to %smute\n",
(mute) ? "" : "un");
return __volume_set_mute_ec(mute);
}
static int volume_set_mute(const bool mute)
{
int rc;
dbg_printk(TPACPI_DBG_MIXER, "trying to %smute\n",
(mute) ? "" : "un");
rc = __volume_set_mute_ec(mute);
return (rc < 0) ? rc : 0;
}
static int __volume_set_volume_ec(const u8 vol)
{
int rc;
u8 s, n;
if (vol > TP_EC_VOLUME_MAX)
return -EINVAL;
if (mutex_lock_killable(&volume_mutex) < 0)
return -EINTR;
rc = volume_get_status_ec(&s);
if (rc)
goto unlock;
n = (s & ~TP_EC_AUDIO_LVL_MSK) | vol;
if (n != s) {
rc = volume_set_status_ec(n);
if (!rc)
rc = 1;
}
unlock:
mutex_unlock(&volume_mutex);
return rc;
}
static int volume_set_software_mute(bool startup)
{
int result;
if (!tpacpi_is_lenovo())
return -ENODEV;
if (startup) {
if (!acpi_evalf(ec_handle, &software_mute_orig_mode,
"HAUM", "qd"))
return -EIO;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"Initial HAUM setting was %d\n",
software_mute_orig_mode);
}
if (!acpi_evalf(ec_handle, &result, "SAUM", "qdd",
(int)TP_EC_MUTE_BTN_NONE))
return -EIO;
if (result != TP_EC_MUTE_BTN_NONE)
pr_warn("Unexpected SAUM result %d\n",
result);
if (tp_features.mixer_no_level_control)
result = volume_set_mute(false);
else
result = volume_set_status(TP_EC_VOLUME_MAX);
if (result != 0)
pr_warn("Failed to unmute the HW mute switch\n");
return 0;
}
static void volume_exit_software_mute(void)
{
int r;
if (!acpi_evalf(ec_handle, &r, "SAUM", "qdd", software_mute_orig_mode)
|| r != software_mute_orig_mode)
pr_warn("Failed to restore mute mode\n");
}
static int volume_alsa_set_volume(const u8 vol)
{
dbg_printk(TPACPI_DBG_MIXER,
"ALSA: trying to set volume level to %hu\n", vol);
return __volume_set_volume_ec(vol);
}
static void volume_alsa_notify_change(void)
{
struct tpacpi_alsa_data *d;
if (alsa_card && alsa_card->private_data) {
d = alsa_card->private_data;
if (d->ctl_mute_id)
snd_ctl_notify(alsa_card,
SNDRV_CTL_EVENT_MASK_VALUE,
d->ctl_mute_id);
if (d->ctl_vol_id)
snd_ctl_notify(alsa_card,
SNDRV_CTL_EVENT_MASK_VALUE,
d->ctl_vol_id);
}
}
static int volume_alsa_vol_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = 1;
uinfo->value.integer.min = 0;
uinfo->value.integer.max = TP_EC_VOLUME_MAX;
return 0;
}
static int volume_alsa_vol_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u8 s;
int rc;
rc = volume_get_status(&s);
if (rc < 0)
return rc;
ucontrol->value.integer.value[0] = s & TP_EC_AUDIO_LVL_MSK;
return 0;
}
static int volume_alsa_vol_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
tpacpi_disclose_usertask("ALSA", "set volume to %ld\n",
ucontrol->value.integer.value[0]);
return volume_alsa_set_volume(ucontrol->value.integer.value[0]);
}
#define volume_alsa_mute_info snd_ctl_boolean_mono_info
static int volume_alsa_mute_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
u8 s;
int rc;
rc = volume_get_status(&s);
if (rc < 0)
return rc;
ucontrol->value.integer.value[0] =
(s & TP_EC_AUDIO_MUTESW_MSK) ? 0 : 1;
return 0;
}
static int volume_alsa_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
tpacpi_disclose_usertask("ALSA", "%smute\n",
ucontrol->value.integer.value[0] ?
"un" : "");
return volume_alsa_set_mute(!ucontrol->value.integer.value[0]);
}
static struct snd_kcontrol_new volume_alsa_control_vol __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Console Playback Volume",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.info = volume_alsa_vol_info,
.get = volume_alsa_vol_get,
};
static struct snd_kcontrol_new volume_alsa_control_mute __initdata = {
.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
.name = "Console Playback Switch",
.index = 0,
.access = SNDRV_CTL_ELEM_ACCESS_READ,
.info = volume_alsa_mute_info,
.get = volume_alsa_mute_get,
};
static void volume_suspend(void)
{
tpacpi_volume_checkpoint_nvram();
}
static void volume_resume(void)
{
if (software_mute_active) {
if (volume_set_software_mute(false) < 0)
pr_warn("Failed to restore software mute\n");
} else {
volume_alsa_notify_change();
}
}
static void volume_shutdown(void)
{
tpacpi_volume_checkpoint_nvram();
}
static void volume_exit(void)
{
if (alsa_card) {
snd_card_free(alsa_card);
alsa_card = NULL;
}
tpacpi_volume_checkpoint_nvram();
if (software_mute_active)
volume_exit_software_mute();
}
static int __init volume_create_alsa_mixer(void)
{
struct snd_card *card;
struct tpacpi_alsa_data *data;
struct snd_kcontrol *ctl_vol;
struct snd_kcontrol *ctl_mute;
int rc;
rc = snd_card_new(&tpacpi_pdev->dev,
alsa_index, alsa_id, THIS_MODULE,
sizeof(struct tpacpi_alsa_data), &card);
if (rc < 0 || !card) {
pr_err("Failed to create ALSA card structures: %d\n", rc);
return -ENODEV;
}
BUG_ON(!card->private_data);
data = card->private_data;
data->card = card;
strscpy(card->driver, TPACPI_ALSA_DRVNAME);
strscpy(card->shortname, TPACPI_ALSA_SHRTNAME);
snprintf(card->mixername, sizeof(card->mixername), "ThinkPad EC %s",
(thinkpad_id.ec_version_str) ?
thinkpad_id.ec_version_str : "(unknown)");
snprintf(card->longname, sizeof(card->longname),
"%s at EC reg 0x%02x, fw %s", card->shortname, TP_EC_AUDIO,
(thinkpad_id.ec_version_str) ?
thinkpad_id.ec_version_str : "unknown");
if (volume_control_allowed) {
volume_alsa_control_vol.put = volume_alsa_vol_put;
volume_alsa_control_vol.access =
SNDRV_CTL_ELEM_ACCESS_READWRITE;
volume_alsa_control_mute.put = volume_alsa_mute_put;
volume_alsa_control_mute.access =
SNDRV_CTL_ELEM_ACCESS_READWRITE;
}
if (!tp_features.mixer_no_level_control) {
ctl_vol = snd_ctl_new1(&volume_alsa_control_vol, NULL);
rc = snd_ctl_add(card, ctl_vol);
if (rc < 0) {
pr_err("Failed to create ALSA volume control: %d\n",
rc);
goto err_exit;
}
data->ctl_vol_id = &ctl_vol->id;
}
ctl_mute = snd_ctl_new1(&volume_alsa_control_mute, NULL);
rc = snd_ctl_add(card, ctl_mute);
if (rc < 0) {
pr_err("Failed to create ALSA mute control: %d\n", rc);
goto err_exit;
}
data->ctl_mute_id = &ctl_mute->id;
rc = snd_card_register(card);
if (rc < 0) {
pr_err("Failed to register ALSA card: %d\n", rc);
goto err_exit;
}
alsa_card = card;
return 0;
err_exit:
snd_card_free(card);
return -ENODEV;
}
#define TPACPI_VOL_Q_MUTEONLY 0x0001
#define TPACPI_VOL_Q_LEVEL 0x0002
static const struct tpacpi_quirk volume_quirk_table[] __initconst = {
{ .vendor = PCI_VENDOR_ID_IBM,
.bios = TPACPI_MATCH_ANY,
.ec = TPACPI_MATCH_ANY,
.quirks = TPACPI_VOL_Q_LEVEL },
TPACPI_QEC_LNV('7', 'C', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', 'E', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', '9', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', 'B', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', 'J', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', '7', TPACPI_VOL_Q_LEVEL),
TPACPI_QEC_LNV('7', 'F', TPACPI_VOL_Q_LEVEL),
{ .vendor = PCI_VENDOR_ID_LENOVO,
.bios = TPACPI_MATCH_ANY,
.ec = TPACPI_MATCH_ANY,
.quirks = TPACPI_VOL_Q_MUTEONLY }
};
static int __init volume_init(struct ibm_init_struct *iibm)
{
unsigned long quirks;
int rc;
vdbg_printk(TPACPI_DBG_INIT, "initializing volume subdriver\n");
mutex_init(&volume_mutex);
if (volume_mode > TPACPI_VOL_MODE_MAX)
return -EINVAL;
if (volume_mode == TPACPI_VOL_MODE_UCMS_STEP) {
pr_err("UCMS step volume mode not implemented, please contact %s\n",
TPACPI_MAIL);
return -ENODEV;
}
if (volume_capabilities >= TPACPI_VOL_CAP_MAX)
return -EINVAL;
if (!alsa_enable) {
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"ALSA mixer disabled by parameter, not loading volume subdriver...\n");
return -ENODEV;
}
quirks = tpacpi_check_quirks(volume_quirk_table,
ARRAY_SIZE(volume_quirk_table));
switch (volume_capabilities) {
case TPACPI_VOL_CAP_AUTO:
if (quirks & TPACPI_VOL_Q_MUTEONLY)
tp_features.mixer_no_level_control = 1;
else if (quirks & TPACPI_VOL_Q_LEVEL)
tp_features.mixer_no_level_control = 0;
else
return -ENODEV;
break;
case TPACPI_VOL_CAP_VOLMUTE:
tp_features.mixer_no_level_control = 0;
break;
case TPACPI_VOL_CAP_MUTEONLY:
tp_features.mixer_no_level_control = 1;
break;
default:
return -ENODEV;
}
if (volume_capabilities != TPACPI_VOL_CAP_AUTO)
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"using user-supplied volume_capabilities=%d\n",
volume_capabilities);
if (volume_mode == TPACPI_VOL_MODE_AUTO ||
volume_mode == TPACPI_VOL_MODE_MAX) {
volume_mode = TPACPI_VOL_MODE_ECNVRAM;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"driver auto-selected volume_mode=%d\n",
volume_mode);
} else {
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"using user-supplied volume_mode=%d\n",
volume_mode);
}
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"mute is supported, volume control is %s\n",
str_supported(!tp_features.mixer_no_level_control));
if (software_mute_requested && volume_set_software_mute(true) == 0) {
software_mute_active = true;
} else {
rc = volume_create_alsa_mixer();
if (rc) {
pr_err("Could not create the ALSA mixer interface\n");
return rc;
}
pr_info("Console audio control enabled, mode: %s\n",
(volume_control_allowed) ?
"override (read/write)" :
"monitor (read only)");
}
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_MIXER,
"registering volume hotkeys as change notification\n");
tpacpi_hotkey_driver_mask_set(hotkey_driver_mask
| TP_ACPI_HKEY_VOLUP_MASK
| TP_ACPI_HKEY_VOLDWN_MASK
| TP_ACPI_HKEY_MUTE_MASK);
return 0;
}
static int volume_read(struct seq_file *m)
{
u8 status;
if (volume_get_status(&status) < 0) {
seq_puts(m, "level:\t\tunreadable\n");
} else {
if (tp_features.mixer_no_level_control)
seq_puts(m, "level:\t\tunsupported\n");
else
seq_printf(m, "level:\t\t%d\n",
status & TP_EC_AUDIO_LVL_MSK);
seq_printf(m, "mute:\t\t%s\n", str_on_off(status & BIT(TP_EC_AUDIO_MUTESW)));
if (volume_control_allowed) {
seq_puts(m, "commands:\tunmute, mute\n");
if (!tp_features.mixer_no_level_control) {
seq_puts(m, "commands:\tup, down\n");
seq_printf(m, "commands:\tlevel <level> (<level> is 0-%d)\n",
TP_EC_VOLUME_MAX);
}
}
}
return 0;
}
static int volume_write(char *buf)
{
u8 s;
u8 new_level, new_mute;
int l;
char *cmd;
int rc;
if (!volume_control_allowed && tpacpi_lifecycle != TPACPI_LIFE_INIT) {
if (unlikely(!tp_warned.volume_ctrl_forbidden)) {
tp_warned.volume_ctrl_forbidden = 1;
pr_notice("Console audio control in monitor mode, changes are not allowed\n");
pr_notice("Use the volume_control=1 module parameter to enable volume control\n");
}
return -EPERM;
}
rc = volume_get_status(&s);
if (rc < 0)
return rc;
new_level = s & TP_EC_AUDIO_LVL_MSK;
new_mute = s & TP_EC_AUDIO_MUTESW_MSK;
while ((cmd = strsep(&buf, ","))) {
if (!tp_features.mixer_no_level_control) {
if (strstarts(cmd, "up")) {
if (new_mute)
new_mute = 0;
else if (new_level < TP_EC_VOLUME_MAX)
new_level++;
continue;
} else if (strstarts(cmd, "down")) {
if (new_mute)
new_mute = 0;
else if (new_level > 0)
new_level--;
continue;
} else if (sscanf(cmd, "level %u", &l) == 1 &&
l >= 0 && l <= TP_EC_VOLUME_MAX) {
new_level = l;
continue;
}
}
if (strstarts(cmd, "mute"))
new_mute = TP_EC_AUDIO_MUTESW_MSK;
else if (strstarts(cmd, "unmute"))
new_mute = 0;
else
return -EINVAL;
}
if (tp_features.mixer_no_level_control) {
tpacpi_disclose_usertask("procfs volume", "%smute\n",
new_mute ? "" : "un");
rc = volume_set_mute(!!new_mute);
} else {
tpacpi_disclose_usertask("procfs volume",
"%smute and set level to %d\n",
new_mute ? "" : "un", new_level);
rc = volume_set_status(new_mute | new_level);
}
volume_alsa_notify_change();
return (rc == -EINTR) ? -ERESTARTSYS : rc;
}
static struct ibm_struct volume_driver_data = {
.name = "volume",
.read = volume_read,
.write = volume_write,
.exit = volume_exit,
.suspend = volume_suspend,
.resume = volume_resume,
.shutdown = volume_shutdown,
};
#else
#define alsa_card NULL
static inline void volume_alsa_notify_change(void)
{
}
static int __init volume_init(struct ibm_init_struct *iibm)
{
pr_info("volume: disabled as there is no ALSA support in this kernel\n");
return -ENODEV;
}
static struct ibm_struct volume_driver_data = {
.name = "volume",
};
#endif
#define FAN_RPM_CAL_CONST 491520
#define FAN_NS_CTRL_STATUS BIT(2)
#define FAN_NS_CTRL BIT(4)
#define FAN_CLOCK_TPM (22500*60)
enum {
fan_status_offset = 0x2f,
fan_rpm_offset = 0x84,
fan_select_offset = 0x31,
fan_status_offset_ns = 0x93,
fan2_status_offset_ns = 0x96,
fan_rpm_status_ns = 0x95,
fan2_rpm_status_ns = 0x98,
TP_EC_FAN_FULLSPEED = 0x40,
TP_EC_FAN_AUTO = 0x80,
TPACPI_FAN_LAST_LEVEL = 0x100,
};
enum fan_status_access_mode {
TPACPI_FAN_NONE = 0,
TPACPI_FAN_RD_ACPI_GFAN,
TPACPI_FAN_RD_ACPI_FANG,
TPACPI_FAN_RD_TPEC,
TPACPI_FAN_RD_TPEC_NS,
};
enum fan_control_access_mode {
TPACPI_FAN_WR_NONE = 0,
TPACPI_FAN_WR_ACPI_SFAN,
TPACPI_FAN_WR_ACPI_FANW,
TPACPI_FAN_WR_TPEC,
TPACPI_FAN_WR_ACPI_FANS,
};
enum fan_control_commands {
TPACPI_FAN_CMD_SPEED = 0x0001,
TPACPI_FAN_CMD_LEVEL = 0x0002,
TPACPI_FAN_CMD_ENABLE = 0x0004,
};
static bool fan_control_allowed;
static enum fan_status_access_mode fan_status_access_mode;
static enum fan_control_access_mode fan_control_access_mode;
static enum fan_control_commands fan_control_commands;
static u8 fan_control_initial_status;
static u8 fan_control_desired_level;
static u8 fan_control_resume_level;
static int fan_watchdog_maxinterval;
static bool fan_with_ns_addr;
static bool ecfw_with_fan_dec_rpm;
static bool fan_speed_in_tpr;
static struct mutex fan_mutex;
static void fan_watchdog_fire(struct work_struct *ignored);
static DECLARE_DELAYED_WORK(fan_watchdog_task, fan_watchdog_fire);
TPACPI_HANDLE(fans, ec, "FANS");
TPACPI_HANDLE(gfan, ec, "GFAN",
"\\FSPD",
);
TPACPI_HANDLE(fang, ec, "FANG",
);
TPACPI_HANDLE(sfan, ec, "SFAN",
"JFNS",
);
TPACPI_HANDLE(fanw, ec, "FANW",
);
static void fan_quirk1_setup(void)
{
if (fan_control_initial_status == 0x07) {
pr_notice("fan_init: initial fan status is unknown, assuming it is in auto mode\n");
tp_features.fan_ctrl_status_undef = 1;
}
}
static void fan_quirk1_handle(u8 *fan_status)
{
if (unlikely(tp_features.fan_ctrl_status_undef)) {
if (*fan_status != fan_control_initial_status) {
tp_features.fan_ctrl_status_undef = 0;
} else {
*fan_status = TP_EC_FAN_AUTO;
}
}
}
static bool fan_select_fan1(void)
{
if (tp_features.second_fan) {
u8 val;
if (ec_read(fan_select_offset, &val) < 0)
return false;
val &= 0xFEU;
if (ec_write(fan_select_offset, val) < 0)
return false;
}
return true;
}
static bool fan_select_fan2(void)
{
u8 val;
if (!tp_features.second_fan)
return false;
if (ec_read(fan_select_offset, &val) < 0)
return false;
val |= 0x01U;
if (ec_write(fan_select_offset, val) < 0)
return false;
return true;
}
static void fan_update_desired_level(u8 status)
{
lockdep_assert_held(&fan_mutex);
if ((status &
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
if (status > 7)
fan_control_desired_level = 7;
else
fan_control_desired_level = status;
}
}
static int fan_get_status(u8 *status)
{
u8 s;
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_ACPI_GFAN: {
int res;
if (unlikely(!acpi_evalf(gfan_handle, &res, NULL, "d")))
return -EIO;
if (likely(status))
*status = res & 0x07;
break;
}
case TPACPI_FAN_RD_ACPI_FANG: {
int mode, speed;
if (unlikely(!acpi_evalf(fang_handle, &mode, NULL, "dd", 0x8100)))
return -EIO;
if (unlikely(!acpi_evalf(fang_handle, &speed, NULL, "dd", 0x8102)))
return -EIO;
if (likely(status)) {
*status = speed * 7 / 100;
if (mode < 9)
*status |= TP_EC_FAN_AUTO;
}
break;
}
case TPACPI_FAN_RD_TPEC:
if (unlikely(!acpi_ec_read(fan_status_offset, &s)))
return -EIO;
if (likely(status)) {
*status = s;
fan_quirk1_handle(status);
}
break;
case TPACPI_FAN_RD_TPEC_NS:
if (!acpi_ec_read(fan_status_offset_ns, &s))
return -EIO;
if (status)
*status = s;
break;
default:
return -ENXIO;
}
return 0;
}
static int fan_get_status_safe(u8 *status)
{
int rc;
u8 s;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = fan_get_status(&s);
if (!rc && !fan_with_ns_addr)
fan_update_desired_level(s);
mutex_unlock(&fan_mutex);
if (rc)
return rc;
if (status)
*status = s;
return 0;
}
static int fan_get_speed(unsigned int *speed)
{
u8 hi, lo;
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_TPEC:
if (unlikely(!fan_select_fan1()))
return -EIO;
if (unlikely(!acpi_ec_read(fan_rpm_offset, &lo) ||
!acpi_ec_read(fan_rpm_offset + 1, &hi)))
return -EIO;
if (likely(speed)) {
*speed = (hi << 8) | lo;
if (fan_speed_in_tpr && *speed != 0)
*speed = FAN_CLOCK_TPM / *speed;
}
break;
case TPACPI_FAN_RD_TPEC_NS:
if (!acpi_ec_read(fan_rpm_status_ns, &lo))
return -EIO;
if (speed)
*speed = lo ? FAN_RPM_CAL_CONST / lo : 0;
break;
default:
return -ENXIO;
}
return 0;
}
static int fan2_get_speed(unsigned int *speed)
{
u8 hi, lo, status;
bool rc;
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_TPEC:
if (unlikely(!fan_select_fan2()))
return -EIO;
rc = !acpi_ec_read(fan_rpm_offset, &lo) ||
!acpi_ec_read(fan_rpm_offset + 1, &hi);
fan_select_fan1();
if (rc)
return -EIO;
if (likely(speed)) {
*speed = (hi << 8) | lo;
if (fan_speed_in_tpr && *speed != 0)
*speed = FAN_CLOCK_TPM / *speed;
}
break;
case TPACPI_FAN_RD_TPEC_NS:
rc = !acpi_ec_read(fan2_status_offset_ns, &status);
if (rc)
return -EIO;
if (!(status & FAN_NS_CTRL_STATUS)) {
pr_info("secondary fan control not supported\n");
return -EIO;
}
rc = !acpi_ec_read(fan2_rpm_status_ns, &lo);
if (rc)
return -EIO;
if (speed)
*speed = lo ? FAN_RPM_CAL_CONST / lo : 0;
break;
case TPACPI_FAN_RD_ACPI_FANG: {
int speed_tmp;
if (unlikely(!acpi_evalf(fang_handle, &speed_tmp, NULL, "dd", 0x8102)))
return -EIO;
if (likely(speed))
*speed = speed_tmp * 65535 / 100;
break;
}
default:
return -ENXIO;
}
return 0;
}
static int fan_set_level(int level)
{
if (!fan_control_allowed)
return -EPERM;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_SFAN:
if ((level < 0) || (level > 7))
return -EINVAL;
if (tp_features.second_fan_ctl) {
if (!fan_select_fan2() ||
!acpi_evalf(sfan_handle, NULL, NULL, "vd", level)) {
pr_warn("Couldn't set 2nd fan level, disabling support\n");
tp_features.second_fan_ctl = 0;
}
fan_select_fan1();
}
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", level))
return -EIO;
break;
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
if (!(level & TP_EC_FAN_AUTO) &&
!(level & TP_EC_FAN_FULLSPEED) &&
((level < 0) || (level > 7)))
return -EINVAL;
if (level & TP_EC_FAN_FULLSPEED)
level |= 7;
else if (level & TP_EC_FAN_AUTO)
level |= 4;
if (tp_features.second_fan_ctl) {
if (!fan_select_fan2() ||
!acpi_ec_write(fan_status_offset, level)) {
pr_warn("Couldn't set 2nd fan level, disabling support\n");
tp_features.second_fan_ctl = 0;
}
fan_select_fan1();
}
if (!acpi_ec_write(fan_status_offset, level))
return -EIO;
else
tp_features.fan_ctrl_status_undef = 0;
break;
case TPACPI_FAN_WR_ACPI_FANW:
if (!(level & TP_EC_FAN_AUTO) && (level < 0 || level > 7))
return -EINVAL;
if (level & TP_EC_FAN_FULLSPEED)
return -EINVAL;
if (level & TP_EC_FAN_AUTO) {
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8106, 0x05)) {
return -EIO;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8100, 0x00)) {
return -EIO;
}
} else {
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8106, 0x45)) {
return -EIO;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8100, 0xff)) {
return -EIO;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8102, level * 100 / 7)) {
return -EIO;
}
}
break;
default:
return -ENXIO;
}
vdbg_printk(TPACPI_DBG_FAN,
"fan control: set fan control register to 0x%02x\n", level);
return 0;
}
static int fan_set_level_safe(int level)
{
int rc;
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
if (level == TPACPI_FAN_LAST_LEVEL)
level = fan_control_desired_level;
rc = fan_set_level(level);
if (!rc)
fan_update_desired_level(level);
mutex_unlock(&fan_mutex);
return rc;
}
static int fan_set_enable(void)
{
u8 s = 0;
int rc;
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
rc = fan_get_status(&s);
if (rc)
break;
if (s != 7) {
s &= 0x07;
s |= TP_EC_FAN_AUTO | 4;
}
if (!acpi_ec_write(fan_status_offset, s))
rc = -EIO;
else {
tp_features.fan_ctrl_status_undef = 0;
rc = 0;
}
break;
case TPACPI_FAN_WR_ACPI_SFAN:
rc = fan_get_status(&s);
if (rc)
break;
s &= 0x07;
s |= 4;
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", s))
rc = -EIO;
else
rc = 0;
break;
case TPACPI_FAN_WR_ACPI_FANW:
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8106, 0x05)) {
rc = -EIO;
break;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8100, 0x00)) {
rc = -EIO;
break;
}
rc = 0;
break;
default:
rc = -ENXIO;
}
mutex_unlock(&fan_mutex);
if (!rc)
vdbg_printk(TPACPI_DBG_FAN,
"fan control: set fan control register to 0x%02x\n",
s);
return rc;
}
static int fan_set_disable(void)
{
int rc;
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
if (!acpi_ec_write(fan_status_offset, 0x00))
rc = -EIO;
else {
fan_control_desired_level = 0;
tp_features.fan_ctrl_status_undef = 0;
}
break;
case TPACPI_FAN_WR_ACPI_SFAN:
if (!acpi_evalf(sfan_handle, NULL, NULL, "vd", 0x00))
rc = -EIO;
else
fan_control_desired_level = 0;
break;
case TPACPI_FAN_WR_ACPI_FANW:
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8106, 0x45)) {
rc = -EIO;
break;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8100, 0xff)) {
rc = -EIO;
break;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8102, 0x00)) {
rc = -EIO;
break;
}
rc = 0;
break;
default:
rc = -ENXIO;
}
if (!rc)
vdbg_printk(TPACPI_DBG_FAN,
"fan control: set fan control register to 0\n");
mutex_unlock(&fan_mutex);
return rc;
}
static int fan_set_speed(int speed)
{
int rc;
if (!fan_control_allowed)
return -EPERM;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = 0;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_FANS:
if (speed >= 0 && speed <= 65535) {
if (!acpi_evalf(fans_handle, NULL, NULL, "vddd",
speed, speed, speed))
rc = -EIO;
} else
rc = -EINVAL;
break;
case TPACPI_FAN_WR_ACPI_FANW:
if (speed >= 0 && speed <= 65535) {
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8106, 0x45)) {
rc = -EIO;
break;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd", 0x8100, 0xff)) {
rc = -EIO;
break;
}
if (!acpi_evalf(fanw_handle, NULL, NULL, "vdd",
0x8102, speed * 100 / 65535))
rc = -EIO;
} else
rc = -EINVAL;
break;
default:
rc = -ENXIO;
}
mutex_unlock(&fan_mutex);
return rc;
}
static void fan_watchdog_reset(void)
{
if (fan_control_access_mode == TPACPI_FAN_WR_NONE)
return;
if (fan_watchdog_maxinterval > 0 &&
tpacpi_lifecycle != TPACPI_LIFE_EXITING)
mod_delayed_work(tpacpi_wq, &fan_watchdog_task,
secs_to_jiffies(fan_watchdog_maxinterval));
else
cancel_delayed_work(&fan_watchdog_task);
}
static void fan_watchdog_fire(struct work_struct *ignored)
{
int rc;
if (tpacpi_lifecycle != TPACPI_LIFE_RUNNING)
return;
pr_notice("fan watchdog: enabling fan\n");
rc = fan_set_enable();
if (rc < 0) {
pr_err("fan watchdog: error %d while enabling fan, will try again later...\n",
rc);
fan_watchdog_reset();
}
}
static ssize_t fan_pwm1_enable_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res, mode;
u8 status;
res = fan_get_status_safe(&status);
if (res)
return res;
if (status & TP_EC_FAN_FULLSPEED) {
mode = 0;
} else if (status & TP_EC_FAN_AUTO) {
mode = 2;
} else
mode = 1;
return sysfs_emit(buf, "%d\n", mode);
}
static ssize_t fan_pwm1_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long t;
int res, level;
if (parse_strtoul(buf, 2, &t))
return -EINVAL;
tpacpi_disclose_usertask("hwmon pwm1_enable",
"set fan mode to %lu\n", t);
switch (t) {
case 0:
level = TP_EC_FAN_FULLSPEED;
break;
case 1:
level = TPACPI_FAN_LAST_LEVEL;
break;
case 2:
level = TP_EC_FAN_AUTO;
break;
case 3:
return -ENOSYS;
default:
return -EINVAL;
}
res = fan_set_level_safe(level);
if (res == -ENXIO)
return -EINVAL;
else if (res < 0)
return res;
fan_watchdog_reset();
return count;
}
static DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
fan_pwm1_enable_show, fan_pwm1_enable_store);
static ssize_t fan_pwm1_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res;
u8 status;
res = fan_get_status_safe(&status);
if (res)
return res;
if ((status &
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) != 0)
status = fan_control_desired_level;
if (status > 7)
status = 7;
return sysfs_emit(buf, "%u\n", (status * 255) / 7);
}
static ssize_t fan_pwm1_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long s;
int rc;
u8 status, newlevel;
if (parse_strtoul(buf, 255, &s))
return -EINVAL;
tpacpi_disclose_usertask("hwmon pwm1",
"set fan speed to %lu\n", s);
newlevel = (s >> 5) & 0x07;
if (mutex_lock_killable(&fan_mutex))
return -ERESTARTSYS;
rc = fan_get_status(&status);
if (!rc && (status &
(TP_EC_FAN_AUTO | TP_EC_FAN_FULLSPEED)) == 0) {
rc = fan_set_level(newlevel);
if (rc == -ENXIO)
rc = -EINVAL;
else if (!rc) {
fan_update_desired_level(newlevel);
fan_watchdog_reset();
}
}
mutex_unlock(&fan_mutex);
return (rc) ? rc : count;
}
static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, fan_pwm1_show, fan_pwm1_store);
static ssize_t fan_fan1_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res;
unsigned int speed;
res = fan_get_speed(&speed);
if (res < 0)
return res;
if (!ecfw_with_fan_dec_rpm)
return sysfs_emit(buf, "%u\n", speed);
else
return sysfs_emit(buf, "%x\n", speed);
}
static DEVICE_ATTR(fan1_input, S_IRUGO, fan_fan1_input_show, NULL);
static ssize_t fan_fan2_input_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int res;
unsigned int speed;
res = fan2_get_speed(&speed);
if (res < 0)
return res;
if (!ecfw_with_fan_dec_rpm)
return sysfs_emit(buf, "%u\n", speed);
else
return sysfs_emit(buf, "%x\n", speed);
}
static DEVICE_ATTR(fan2_input, S_IRUGO, fan_fan2_input_show, NULL);
static ssize_t fan_watchdog_show(struct device_driver *drv, char *buf)
{
return sysfs_emit(buf, "%u\n", fan_watchdog_maxinterval);
}
static ssize_t fan_watchdog_store(struct device_driver *drv, const char *buf,
size_t count)
{
unsigned long t;
if (parse_strtoul(buf, 120, &t))
return -EINVAL;
if (!fan_control_allowed)
return -EPERM;
fan_watchdog_maxinterval = t;
fan_watchdog_reset();
tpacpi_disclose_usertask("fan_watchdog", "set to %lu\n", t);
return count;
}
static DRIVER_ATTR_RW(fan_watchdog);
static struct attribute *fan_attributes[] = {
&dev_attr_pwm1_enable.attr,
&dev_attr_pwm1.attr,
&dev_attr_fan1_input.attr,
&dev_attr_fan2_input.attr,
NULL
};
static umode_t fan_attr_is_visible(struct kobject *kobj, struct attribute *attr,
int n)
{
if (fan_status_access_mode == TPACPI_FAN_NONE &&
fan_control_access_mode == TPACPI_FAN_WR_NONE)
return 0;
if (attr == &dev_attr_fan2_input.attr) {
if (!tp_features.second_fan)
return 0;
}
return attr->mode;
}
static const struct attribute_group fan_attr_group = {
.is_visible = fan_attr_is_visible,
.attrs = fan_attributes,
};
static struct attribute *fan_driver_attributes[] = {
&driver_attr_fan_watchdog.attr,
NULL
};
static const struct attribute_group fan_driver_attr_group = {
.is_visible = fan_attr_is_visible,
.attrs = fan_driver_attributes,
};
#define TPACPI_FAN_Q1 0x0001
#define TPACPI_FAN_2FAN 0x0002
#define TPACPI_FAN_2CTL 0x0004
#define TPACPI_FAN_NOFAN 0x0008
#define TPACPI_FAN_NS 0x0010
#define TPACPI_FAN_DECRPM 0x0020
#define TPACPI_FAN_TPR 0x0040
#define TPACPI_FAN_NOACPI 0x0080
static const struct tpacpi_quirk fan_quirk_table[] __initconst = {
TPACPI_QEC_IBM('1', 'Y', TPACPI_FAN_Q1),
TPACPI_QEC_IBM('7', '8', TPACPI_FAN_Q1),
TPACPI_QEC_IBM('7', '6', TPACPI_FAN_Q1),
TPACPI_QEC_IBM('7', '0', TPACPI_FAN_Q1),
TPACPI_QEC_LNV('7', 'M', TPACPI_FAN_2FAN),
TPACPI_Q_LNV('N', '1', TPACPI_FAN_2FAN),
TPACPI_Q_LNV3('N', '1', 'D', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '1', 'E', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '1', 'T', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '1', 'U', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '2', 'C', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '2', 'N', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '2', 'E', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '2', 'O', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '3', '0', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('N', '3', '7', TPACPI_FAN_2CTL),
TPACPI_Q_LNV3('R', '1', 'F', TPACPI_FAN_NS),
TPACPI_Q_LNV3('N', '2', 'U', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '0', 'R', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '1', '5', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '1', '0', TPACPI_FAN_NS),
TPACPI_Q_LNV3('N', '2', 'L', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '0', 'T', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '1', 'D', TPACPI_FAN_NS),
TPACPI_Q_LNV3('R', '0', 'V', TPACPI_FAN_NS),
TPACPI_Q_LNV3('N', '1', 'O', TPACPI_FAN_NOFAN),
TPACPI_Q_LNV3('R', '0', 'Q', TPACPI_FAN_DECRPM),
TPACPI_Q_LNV('8', 'F', TPACPI_FAN_TPR),
TPACPI_Q_LNV3('R', '0', '0', TPACPI_FAN_NOACPI),
TPACPI_Q_LNV3('R', '1', '2', TPACPI_FAN_NOACPI),
TPACPI_Q_LNV3('R', '1', '3', TPACPI_FAN_NOACPI),
};
static int __init fan_init(struct ibm_init_struct *iibm)
{
unsigned long quirks;
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"initializing fan subdriver\n");
mutex_init(&fan_mutex);
fan_status_access_mode = TPACPI_FAN_NONE;
fan_control_access_mode = TPACPI_FAN_WR_NONE;
fan_control_commands = 0;
fan_watchdog_maxinterval = 0;
tp_features.fan_ctrl_status_undef = 0;
tp_features.second_fan = 0;
tp_features.second_fan_ctl = 0;
fan_control_desired_level = 7;
if (tpacpi_is_ibm()) {
TPACPI_ACPIHANDLE_INIT(fans);
TPACPI_ACPIHANDLE_INIT(gfan);
TPACPI_ACPIHANDLE_INIT(sfan);
}
if (tpacpi_is_lenovo()) {
TPACPI_ACPIHANDLE_INIT(fang);
TPACPI_ACPIHANDLE_INIT(fanw);
}
quirks = tpacpi_check_quirks(fan_quirk_table,
ARRAY_SIZE(fan_quirk_table));
if (quirks & TPACPI_FAN_NOFAN) {
pr_info("No integrated ThinkPad fan available\n");
return -ENODEV;
}
if (quirks & TPACPI_FAN_NS) {
pr_info("ECFW with non-standard fan reg control found\n");
fan_with_ns_addr = 1;
tp_features.fan_ctrl_status_undef = 1;
}
if (quirks & TPACPI_FAN_DECRPM) {
pr_info("ECFW with fan RPM as decimal in EC register\n");
ecfw_with_fan_dec_rpm = 1;
tp_features.fan_ctrl_status_undef = 1;
}
if (quirks & TPACPI_FAN_NOACPI) {
pr_info("Ignoring buggy ACPI fan access method\n");
fang_handle = NULL;
fanw_handle = NULL;
}
if (gfan_handle) {
fan_status_access_mode = TPACPI_FAN_RD_ACPI_GFAN;
} else if (fang_handle) {
fan_status_access_mode = TPACPI_FAN_RD_ACPI_FANG;
} else {
if (fan_with_ns_addr ||
likely(acpi_ec_read(fan_status_offset, &fan_control_initial_status))) {
int res;
unsigned int speed;
fan_status_access_mode = fan_with_ns_addr ?
TPACPI_FAN_RD_TPEC_NS : TPACPI_FAN_RD_TPEC;
if (quirks & TPACPI_FAN_Q1)
fan_quirk1_setup();
if (quirks & TPACPI_FAN_TPR)
fan_speed_in_tpr = true;
tp_features.second_fan = 1;
res = fan2_get_speed(&speed);
if (res >= 0 && speed != FAN_NOT_PRESENT) {
tp_features.second_fan = 1;
tp_features.second_fan_ctl = !fan_with_ns_addr;
pr_info("secondary fan control detected & enabled\n");
} else {
tp_features.second_fan = 0;
if (quirks & TPACPI_FAN_2FAN) {
tp_features.second_fan = 1;
pr_info("secondary fan support enabled\n");
}
if (quirks & TPACPI_FAN_2CTL) {
tp_features.second_fan = 1;
tp_features.second_fan_ctl = 1;
pr_info("secondary fan control enabled\n");
}
}
} else {
pr_err("ThinkPad ACPI EC access misbehaving, fan status and control unavailable\n");
return -ENODEV;
}
}
if (sfan_handle) {
fan_control_access_mode = TPACPI_FAN_WR_ACPI_SFAN;
fan_control_commands |=
TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_ENABLE;
} else if (fanw_handle) {
fan_control_access_mode = TPACPI_FAN_WR_ACPI_FANW;
fan_control_commands |=
TPACPI_FAN_CMD_LEVEL | TPACPI_FAN_CMD_SPEED | TPACPI_FAN_CMD_ENABLE;
} else {
if (!gfan_handle) {
if (fans_handle) {
fan_control_access_mode =
TPACPI_FAN_WR_ACPI_FANS;
fan_control_commands |=
TPACPI_FAN_CMD_SPEED |
TPACPI_FAN_CMD_LEVEL |
TPACPI_FAN_CMD_ENABLE;
} else {
fan_control_access_mode = TPACPI_FAN_WR_TPEC;
fan_control_commands |=
TPACPI_FAN_CMD_LEVEL |
TPACPI_FAN_CMD_ENABLE;
}
}
}
vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"fan is %s, modes %d, %d\n",
str_supported(fan_status_access_mode != TPACPI_FAN_NONE ||
fan_control_access_mode != TPACPI_FAN_WR_NONE),
fan_status_access_mode, fan_control_access_mode);
if (!fan_control_allowed) {
fan_control_access_mode = TPACPI_FAN_WR_NONE;
fan_control_commands = 0;
dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_FAN,
"fan control features disabled by parameter\n");
}
if (fan_status_access_mode != TPACPI_FAN_NONE)
fan_get_status_safe(NULL);
if (fan_status_access_mode == TPACPI_FAN_NONE &&
fan_control_access_mode == TPACPI_FAN_WR_NONE)
return -ENODEV;
return 0;
}
static void fan_exit(void)
{
vdbg_printk(TPACPI_DBG_EXIT | TPACPI_DBG_FAN,
"cancelling any pending fan watchdog tasks\n");
cancel_delayed_work(&fan_watchdog_task);
flush_workqueue(tpacpi_wq);
}
static void fan_suspend(void)
{
int rc;
if (!fan_control_allowed)
return;
fan_control_resume_level = 0;
rc = fan_get_status_safe(&fan_control_resume_level);
if (rc)
pr_notice("failed to read fan level for later restore during resume: %d\n",
rc);
if (tp_features.fan_ctrl_status_undef)
fan_control_resume_level = 0;
}
static void fan_resume(void)
{
u8 current_level = 7;
bool do_set = false;
int rc;
tp_features.fan_ctrl_status_undef = 0;
if (!fan_control_allowed ||
!fan_control_resume_level ||
fan_get_status_safe(¤t_level))
return;
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_SFAN:
do_set = (fan_control_resume_level > current_level);
break;
case TPACPI_FAN_WR_ACPI_FANS:
case TPACPI_FAN_WR_TPEC:
if (fan_control_resume_level != 7 &&
!(fan_control_resume_level & TP_EC_FAN_FULLSPEED))
return;
else
do_set = !(current_level & TP_EC_FAN_FULLSPEED) &&
(current_level != fan_control_resume_level);
break;
default:
return;
}
if (do_set) {
pr_notice("restoring fan level to 0x%02x\n",
fan_control_resume_level);
rc = fan_set_level_safe(fan_control_resume_level);
if (rc < 0)
pr_notice("failed to restore fan level: %d\n", rc);
}
}
static int fan_read(struct seq_file *m)
{
int rc;
u8 status;
unsigned int speed = 0;
switch (fan_status_access_mode) {
case TPACPI_FAN_RD_ACPI_GFAN:
rc = fan_get_status_safe(&status);
if (rc)
return rc;
seq_printf(m, "status:\t\t%s\n"
"level:\t\t%d\n",
str_enabled_disabled(status), status);
break;
case TPACPI_FAN_RD_TPEC_NS:
case TPACPI_FAN_RD_TPEC:
case TPACPI_FAN_RD_ACPI_FANG:
rc = fan_get_status_safe(&status);
if (rc)
return rc;
seq_printf(m, "status:\t\t%s\n", str_enabled_disabled(status));
rc = fan_get_speed(&speed);
if (rc < 0)
return rc;
if (!ecfw_with_fan_dec_rpm)
seq_printf(m, "speed:\t\t%d\n", speed);
else
seq_printf(m, "speed:\t\t%x\n", speed);
if (fan_status_access_mode == TPACPI_FAN_RD_TPEC_NS) {
seq_printf(m, "level:\t\t%s\n", status & FAN_NS_CTRL ? "unknown" : "auto");
} else if (fan_status_access_mode == TPACPI_FAN_RD_TPEC) {
if (status & TP_EC_FAN_FULLSPEED)
seq_puts(m, "level:\t\tdisengaged\n");
else if (status & TP_EC_FAN_AUTO)
seq_puts(m, "level:\t\tauto\n");
else
seq_printf(m, "level:\t\t%d\n", status);
}
break;
case TPACPI_FAN_NONE:
default:
seq_puts(m, "status:\t\tnot supported\n");
}
if (fan_control_commands & TPACPI_FAN_CMD_LEVEL) {
seq_puts(m, "commands:\tlevel <level>");
switch (fan_control_access_mode) {
case TPACPI_FAN_WR_ACPI_SFAN:
seq_puts(m, " (<level> is 0-7)\n");
break;
default:
seq_puts(m, " (<level> is 0-7, auto, disengaged, full-speed)\n");
break;
}
}
if (fan_control_commands & TPACPI_FAN_CMD_ENABLE)
seq_printf(m, "commands:\tenable, disable\n"
"commands:\twatchdog <timeout> (<timeout> is 0 (off), 1-120 (seconds))\n");
if (fan_control_commands & TPACPI_FAN_CMD_SPEED)
seq_puts(m, "commands:\tspeed <speed> (<speed> is 0-65535)\n");
return 0;
}
static int fan_write_cmd_level(const char *cmd, int *rc)
{
int level;
if (strstarts(cmd, "level auto"))
level = TP_EC_FAN_AUTO;
else if (strstarts(cmd, "level disengaged") || strstarts(cmd, "level full-speed"))
level = TP_EC_FAN_FULLSPEED;
else if (sscanf(cmd, "level %d", &level) != 1)
return 0;
*rc = fan_set_level_safe(level);
if (*rc == -ENXIO)
pr_err("level command accepted for unsupported access mode %d\n",
fan_control_access_mode);
else if (!*rc)
tpacpi_disclose_usertask("procfs fan",
"set level to %d\n", level);
return 1;
}
static int fan_write_cmd_enable(const char *cmd, int *rc)
{
if (!strstarts(cmd, "enable"))
return 0;
*rc = fan_set_enable();
if (*rc == -ENXIO)
pr_err("enable command accepted for unsupported access mode %d\n",
fan_control_access_mode);
else if (!*rc)
tpacpi_disclose_usertask("procfs fan", "enable\n");
return 1;
}
static int fan_write_cmd_disable(const char *cmd, int *rc)
{
if (!strstarts(cmd, "disable"))
return 0;
*rc = fan_set_disable();
if (*rc == -ENXIO)
pr_err("disable command accepted for unsupported access mode %d\n",
fan_control_access_mode);
else if (!*rc)
tpacpi_disclose_usertask("procfs fan", "disable\n");
return 1;
}
static int fan_write_cmd_speed(const char *cmd, int *rc)
{
int speed;
if (sscanf(cmd, "speed %d", &speed) != 1)
return 0;
*rc = fan_set_speed(speed);
if (*rc == -ENXIO)
pr_err("speed command accepted for unsupported access mode %d\n",
fan_control_access_mode);
else if (!*rc)
tpacpi_disclose_usertask("procfs fan",
"set speed to %d\n", speed);
return 1;
}
static int fan_write_cmd_watchdog(const char *cmd, int *rc)
{
int interval;
if (sscanf(cmd, "watchdog %d", &interval) != 1)
return 0;
if (interval < 0 || interval > 120)
*rc = -EINVAL;
else {
fan_watchdog_maxinterval = interval;
tpacpi_disclose_usertask("procfs fan",
"set watchdog timer to %d\n",
interval);
}
return 1;
}
static int fan_write(char *buf)
{
char *cmd;
int rc = 0;
while (!rc && (cmd = strsep(&buf, ","))) {
if (!((fan_control_commands & TPACPI_FAN_CMD_LEVEL) &&
fan_write_cmd_level(cmd, &rc)) &&
!((fan_control_commands & TPACPI_FAN_CMD_ENABLE) &&
(fan_write_cmd_enable(cmd, &rc) ||
fan_write_cmd_disable(cmd, &rc) ||
fan_write_cmd_watchdog(cmd, &rc))) &&
!((fan_control_commands & TPACPI_FAN_CMD_SPEED) &&
fan_write_cmd_speed(cmd, &rc))
)
rc = -EINVAL;
else if (!rc)
fan_watchdog_reset();
}
return rc;
}
static struct ibm_struct fan_driver_data = {
.name = "fan",
.read = fan_read,
.write = fan_write,
.exit = fan_exit,
.suspend = fan_suspend,
.resume = fan_resume,
};
#define TPACPI_LED_MAX 2
struct tp_led_table {
acpi_string name;
int on_value;
int off_value;
int state;
};
static struct tp_led_table led_tables[TPACPI_LED_MAX] = {
[LED_AUDIO_MUTE] = {
.name = "SSMS",
.on_value = 1,
.off_value = 0,
},
[LED_AUDIO_MICMUTE] = {
.name = "MMTS",
.on_value = 2,
.off_value = 0,
},
};
static int mute_led_on_off(struct tp_led_table *t, bool state)
{
acpi_handle temp;
int output;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
pr_warn("Thinkpad ACPI has no %s interface.\n", t->name);
return -EIO;
}
if (!acpi_evalf(hkey_handle, &output, t->name, "dd",
state ? t->on_value : t->off_value))
return -EIO;
t->state = state;
return state;
}
static int tpacpi_led_set(int whichled, bool on)
{
struct tp_led_table *t;
t = &led_tables[whichled];
if (t->state < 0 || t->state == on)
return t->state;
return mute_led_on_off(t, on);
}
static int tpacpi_led_mute_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
return tpacpi_led_set(LED_AUDIO_MUTE, brightness != LED_OFF);
}
static int tpacpi_led_micmute_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
return tpacpi_led_set(LED_AUDIO_MICMUTE, brightness != LED_OFF);
}
static struct led_classdev mute_led_cdev[TPACPI_LED_MAX] = {
[LED_AUDIO_MUTE] = {
.name = "platform::mute",
.max_brightness = 1,
.brightness_set_blocking = tpacpi_led_mute_set,
.default_trigger = "audio-mute",
},
[LED_AUDIO_MICMUTE] = {
.name = "platform::micmute",
.max_brightness = 1,
.brightness_set_blocking = tpacpi_led_micmute_set,
.default_trigger = "audio-micmute",
},
};
static int mute_led_init(struct ibm_init_struct *iibm)
{
acpi_handle temp;
int i, err;
for (i = 0; i < TPACPI_LED_MAX; i++) {
struct tp_led_table *t = &led_tables[i];
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, t->name, &temp))) {
t->state = -ENODEV;
continue;
}
err = led_classdev_register(&tpacpi_pdev->dev, &mute_led_cdev[i]);
if (err < 0) {
while (i--)
led_classdev_unregister(&mute_led_cdev[i]);
return err;
}
}
return 0;
}
static void mute_led_exit(void)
{
int i;
for (i = 0; i < TPACPI_LED_MAX; i++) {
led_classdev_unregister(&mute_led_cdev[i]);
tpacpi_led_set(i, false);
}
}
static void mute_led_resume(void)
{
int i;
for (i = 0; i < TPACPI_LED_MAX; i++) {
struct tp_led_table *t = &led_tables[i];
if (t->state >= 0)
mute_led_on_off(t, t->state);
}
}
static struct ibm_struct mute_led_driver_data = {
.name = "mute_led",
.exit = mute_led_exit,
.resume = mute_led_resume,
};
#define GET_START "BCTG"
#define SET_START "BCCS"
#define GET_STOP "BCSG"
#define SET_STOP "BCSS"
#define GET_DISCHARGE "BDSG"
#define SET_DISCHARGE "BDSS"
#define GET_INHIBIT "BICG"
#define SET_INHIBIT "BICS"
enum {
BAT_ANY = 0,
BAT_PRIMARY = 1,
BAT_SECONDARY = 2
};
enum {
METHOD_ERR = BIT(31),
};
enum {
THRESHOLD_START,
THRESHOLD_STOP,
FORCE_DISCHARGE,
INHIBIT_CHARGE,
};
struct tpacpi_battery_data {
int charge_start;
int start_support;
int charge_stop;
int stop_support;
unsigned int charge_behaviours;
};
struct tpacpi_battery_driver_data {
struct tpacpi_battery_data batteries[3];
int individual_addressing;
};
static struct tpacpi_battery_driver_data battery_info;
static acpi_status tpacpi_battery_acpi_eval(char *method, int *ret, int param)
{
int response;
if (!acpi_evalf(hkey_handle, &response, method, "dd", param)) {
acpi_handle_err(hkey_handle, "%s: evaluate failed", method);
return AE_ERROR;
}
if (response & METHOD_ERR) {
acpi_handle_err(hkey_handle,
"%s evaluated but flagged as error", method);
return AE_ERROR;
}
*ret = response;
return AE_OK;
}
static int tpacpi_battery_get(int what, int battery, int *ret)
{
switch (what) {
case THRESHOLD_START:
if (!battery_info.batteries[battery].start_support ||
ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, ret, battery)))
return -ENODEV;
*ret = *ret & 0xFF;
return 0;
case THRESHOLD_STOP:
if (!battery_info.batteries[battery].stop_support ||
ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, ret, battery)))
return -ENODEV;
*ret = *ret & 0xFF;
if (*ret == 0)
*ret = 100;
return 0;
case FORCE_DISCHARGE:
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_DISCHARGE, ret, battery))
return -ENODEV;
*ret = *ret & 0x01;
return 0;
case INHIBIT_CHARGE:
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_INHIBIT, ret, battery))
return -ENODEV;
*ret = *ret & 0x01;
return 0;
default:
pr_crit("wrong parameter: %d", what);
return -EINVAL;
}
}
static int tpacpi_battery_set(int what, int battery, int value)
{
int param, ret;
param = value;
param |= battery << 8;
switch (what) {
case THRESHOLD_START:
if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_START, &ret, param)) {
pr_err("failed to set charge threshold on battery %d",
battery);
return -ENODEV;
}
return 0;
case THRESHOLD_STOP:
if ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_STOP, &ret, param)) {
pr_err("failed to set stop threshold: %d", battery);
return -ENODEV;
}
return 0;
case FORCE_DISCHARGE:
if (ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_DISCHARGE, &ret, param))) {
pr_err("failed to set force discharge on %d", battery);
return -ENODEV;
}
return 0;
case INHIBIT_CHARGE:
param = value;
param |= battery << 4;
param |= 0xFFFF << 8;
if (ACPI_FAILURE(tpacpi_battery_acpi_eval(SET_INHIBIT, &ret, param))) {
pr_err("failed to set inhibit charge on %d", battery);
return -ENODEV;
}
return 0;
default:
pr_crit("wrong parameter: %d", what);
return -EINVAL;
}
}
static int tpacpi_battery_set_validate(int what, int battery, int value)
{
int ret, v;
ret = tpacpi_battery_set(what, battery, value);
if (ret < 0)
return ret;
ret = tpacpi_battery_get(what, battery, &v);
if (ret < 0)
return ret;
if (v == value)
return 0;
msleep(500);
ret = tpacpi_battery_get(what, battery, &v);
if (ret < 0)
return ret;
if (v == value)
return 0;
return -EIO;
}
static int tpacpi_battery_probe(int battery)
{
int ret = 0;
memset(&battery_info.batteries[battery], 0,
sizeof(battery_info.batteries[battery]));
if (acpi_has_method(hkey_handle, GET_START)) {
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_START, &ret, battery)) {
pr_err("Error probing battery %d\n", battery);
return -ENODEV;
}
if (ret & BIT(9))
battery_info.individual_addressing = true;
if (ret & BIT(8))
battery_info.batteries[battery].start_support = 1;
else
return -ENODEV;
if (tpacpi_battery_get(THRESHOLD_START, battery,
&battery_info.batteries[battery].charge_start)) {
pr_err("Error probing battery %d\n", battery);
return -ENODEV;
}
}
if (acpi_has_method(hkey_handle, GET_STOP)) {
if ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_STOP, &ret, battery)) {
pr_err("Error probing battery stop; %d\n", battery);
return -ENODEV;
}
if (ret & BIT(8))
battery_info.batteries[battery].stop_support = 1;
else
return -ENODEV;
if (tpacpi_battery_get(THRESHOLD_STOP, battery,
&battery_info.batteries[battery].charge_stop)) {
pr_err("Error probing battery stop: %d\n", battery);
return -ENODEV;
}
}
if (acpi_has_method(hkey_handle, GET_DISCHARGE)) {
if (ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_DISCHARGE, &ret, battery))) {
pr_err("Error probing battery discharge; %d\n", battery);
return -ENODEV;
}
if (ret & BIT(8))
battery_info.batteries[battery].charge_behaviours |=
BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE);
}
if (acpi_has_method(hkey_handle, GET_INHIBIT)) {
if (ACPI_FAILURE(tpacpi_battery_acpi_eval(GET_INHIBIT, &ret, battery))) {
pr_err("Error probing battery inhibit charge; %d\n", battery);
return -ENODEV;
}
if (ret & BIT(5))
battery_info.batteries[battery].charge_behaviours |=
BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE);
}
battery_info.batteries[battery].charge_behaviours |=
BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO);
pr_info("battery %d registered (start %d, stop %d, behaviours: 0x%x)\n",
battery,
battery_info.batteries[battery].charge_start,
battery_info.batteries[battery].charge_stop,
battery_info.batteries[battery].charge_behaviours);
return 0;
}
static int tpacpi_battery_get_id(const char *battery_name)
{
if (strcmp(battery_name, "BAT0") == 0 ||
tp_features.battery_force_primary)
return BAT_PRIMARY;
if (strcmp(battery_name, "BAT1") == 0)
return BAT_SECONDARY;
pr_warn("unknown battery %s, assuming primary", battery_name);
return BAT_PRIMARY;
}
static ssize_t tpacpi_battery_store(int what,
struct device *dev,
const char *buf, size_t count)
{
struct power_supply *supply = to_power_supply(dev);
unsigned long value;
int battery, rval;
if (battery_info.individual_addressing)
battery = tpacpi_battery_get_id(supply->desc->name);
else
battery = BAT_PRIMARY;
rval = kstrtoul(buf, 10, &value);
if (rval)
return rval;
switch (what) {
case THRESHOLD_START:
if (!battery_info.batteries[battery].start_support)
return -ENODEV;
if (value > 99)
return -EINVAL;
if (value > battery_info.batteries[battery].charge_stop)
return -EINVAL;
if (tpacpi_battery_set(THRESHOLD_START, battery, value))
return -ENODEV;
battery_info.batteries[battery].charge_start = value;
return count;
case THRESHOLD_STOP:
if (!battery_info.batteries[battery].stop_support)
return -ENODEV;
if (value < 1 || value > 100)
return -EINVAL;
if (value < battery_info.batteries[battery].charge_start)
return -EINVAL;
battery_info.batteries[battery].charge_stop = value;
if (value == 100)
value = 0;
if (tpacpi_battery_set(THRESHOLD_STOP, battery, value))
return -EINVAL;
return count;
default:
pr_crit("Wrong parameter: %d", what);
return -EINVAL;
}
return count;
}
static ssize_t tpacpi_battery_show(int what,
struct device *dev,
char *buf)
{
struct power_supply *supply = to_power_supply(dev);
int ret, battery;
if (battery_info.individual_addressing)
battery = tpacpi_battery_get_id(supply->desc->name);
else
battery = BAT_PRIMARY;
if (tpacpi_battery_get(what, battery, &ret))
return -ENODEV;
return sysfs_emit(buf, "%d\n", ret);
}
static ssize_t charge_control_start_threshold_show(struct device *device,
struct device_attribute *attr,
char *buf)
{
return tpacpi_battery_show(THRESHOLD_START, device, buf);
}
static ssize_t charge_control_end_threshold_show(struct device *device,
struct device_attribute *attr,
char *buf)
{
return tpacpi_battery_show(THRESHOLD_STOP, device, buf);
}
static ssize_t charge_behaviour_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
enum power_supply_charge_behaviour active = POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO;
struct power_supply *supply = to_power_supply(dev);
unsigned int available;
int ret, battery;
battery = tpacpi_battery_get_id(supply->desc->name);
available = battery_info.batteries[battery].charge_behaviours;
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE)) {
if (tpacpi_battery_get(FORCE_DISCHARGE, battery, &ret))
return -ENODEV;
if (ret) {
active = POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE;
goto out;
}
}
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE)) {
if (tpacpi_battery_get(INHIBIT_CHARGE, battery, &ret))
return -ENODEV;
if (ret) {
active = POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE;
goto out;
}
}
out:
return power_supply_charge_behaviour_show(dev, available, active, buf);
}
static ssize_t charge_control_start_threshold_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return tpacpi_battery_store(THRESHOLD_START, dev, buf, count);
}
static ssize_t charge_control_end_threshold_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
return tpacpi_battery_store(THRESHOLD_STOP, dev, buf, count);
}
static ssize_t charge_behaviour_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct power_supply *supply = to_power_supply(dev);
int selected, battery, ret = 0;
unsigned int available;
battery = tpacpi_battery_get_id(supply->desc->name);
available = battery_info.batteries[battery].charge_behaviours;
selected = power_supply_charge_behaviour_parse(available, buf);
if (selected < 0)
return selected;
switch (selected) {
case POWER_SUPPLY_CHARGE_BEHAVIOUR_AUTO:
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE))
ret = tpacpi_battery_set_validate(FORCE_DISCHARGE, battery, 0);
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE))
ret = min(ret, tpacpi_battery_set_validate(INHIBIT_CHARGE, battery, 0));
if (ret < 0)
return ret;
break;
case POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE:
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE))
ret = tpacpi_battery_set_validate(INHIBIT_CHARGE, battery, 0);
ret = min(ret, tpacpi_battery_set_validate(FORCE_DISCHARGE, battery, 1));
if (ret < 0)
return ret;
break;
case POWER_SUPPLY_CHARGE_BEHAVIOUR_INHIBIT_CHARGE:
if (available & BIT(POWER_SUPPLY_CHARGE_BEHAVIOUR_FORCE_DISCHARGE))
ret = tpacpi_battery_set_validate(FORCE_DISCHARGE, battery, 0);
ret = min(ret, tpacpi_battery_set_validate(INHIBIT_CHARGE, battery, 1));
if (ret < 0)
return ret;
break;
default:
dev_err(dev, "Unexpected charge behaviour: %d\n", selected);
return -EINVAL;
}
return count;
}
static DEVICE_ATTR_RW(charge_control_start_threshold);
static DEVICE_ATTR_RW(charge_control_end_threshold);
static DEVICE_ATTR_RW(charge_behaviour);
static struct device_attribute dev_attr_charge_start_threshold = __ATTR(
charge_start_threshold,
0644,
charge_control_start_threshold_show,
charge_control_start_threshold_store
);
static struct device_attribute dev_attr_charge_stop_threshold = __ATTR(
charge_stop_threshold,
0644,
charge_control_end_threshold_show,
charge_control_end_threshold_store
);
static struct attribute *tpacpi_battery_attrs[] = {
&dev_attr_charge_control_start_threshold.attr,
&dev_attr_charge_control_end_threshold.attr,
&dev_attr_charge_start_threshold.attr,
&dev_attr_charge_stop_threshold.attr,
&dev_attr_charge_behaviour.attr,
NULL,
};
ATTRIBUTE_GROUPS(tpacpi_battery);
static int tpacpi_battery_add(struct power_supply *battery, struct acpi_battery_hook *hook)
{
int batteryid = tpacpi_battery_get_id(battery->desc->name);
if (tpacpi_battery_probe(batteryid))
return -ENODEV;
if (device_add_groups(&battery->dev, tpacpi_battery_groups))
return -ENODEV;
return 0;
}
static int tpacpi_battery_remove(struct power_supply *battery, struct acpi_battery_hook *hook)
{
device_remove_groups(&battery->dev, tpacpi_battery_groups);
return 0;
}
static struct acpi_battery_hook battery_hook = {
.add_battery = tpacpi_battery_add,
.remove_battery = tpacpi_battery_remove,
.name = "ThinkPad Battery Extension",
};
static const struct tpacpi_quirk battery_quirk_table[] __initconst = {
TPACPI_Q_LNV('G', '8', true),
TPACPI_Q_LNV('8', 'F', true),
TPACPI_Q_LNV('J', '7', true),
TPACPI_Q_LNV('J', 'I', true),
TPACPI_Q_LNV3('R', '0', 'B', true),
TPACPI_Q_LNV3('R', '0', 'C', true),
TPACPI_Q_LNV3('R', '0', 'J', true),
TPACPI_Q_LNV3('R', '0', 'K', true),
};
static int __init tpacpi_battery_init(struct ibm_init_struct *ibm)
{
memset(&battery_info, 0, sizeof(battery_info));
tp_features.battery_force_primary = tpacpi_check_quirks(
battery_quirk_table,
ARRAY_SIZE(battery_quirk_table));
battery_hook_register(&battery_hook);
return 0;
}
static void tpacpi_battery_exit(void)
{
battery_hook_unregister(&battery_hook);
}
static struct ibm_struct battery_driver_data = {
.name = "battery",
.exit = tpacpi_battery_exit,
};
static struct drm_privacy_screen *lcdshadow_dev;
static acpi_handle lcdshadow_get_handle;
static acpi_handle lcdshadow_set_handle;
static int lcdshadow_set_sw_state(struct drm_privacy_screen *priv,
enum drm_privacy_screen_status state)
{
int output;
if (WARN_ON(!mutex_is_locked(&priv->lock)))
return -EIO;
if (!acpi_evalf(lcdshadow_set_handle, &output, NULL, "dd", (int)state))
return -EIO;
priv->hw_state = priv->sw_state = state;
return 0;
}
static void lcdshadow_get_hw_state(struct drm_privacy_screen *priv)
{
int output;
if (!acpi_evalf(lcdshadow_get_handle, &output, NULL, "dd", 0))
return;
priv->hw_state = priv->sw_state = output & 0x1;
}
static const struct drm_privacy_screen_ops lcdshadow_ops = {
.set_sw_state = lcdshadow_set_sw_state,
.get_hw_state = lcdshadow_get_hw_state,
};
static int tpacpi_lcdshadow_init(struct ibm_init_struct *iibm)
{
acpi_status status1, status2;
int output;
status1 = acpi_get_handle(hkey_handle, "GSSS", &lcdshadow_get_handle);
status2 = acpi_get_handle(hkey_handle, "SSSS", &lcdshadow_set_handle);
if (ACPI_FAILURE(status1) || ACPI_FAILURE(status2))
return 0;
if (!acpi_evalf(lcdshadow_get_handle, &output, NULL, "dd", 0))
return -EIO;
if (!(output & 0x10000))
return 0;
lcdshadow_dev = drm_privacy_screen_register(&tpacpi_pdev->dev,
&lcdshadow_ops, NULL);
if (IS_ERR(lcdshadow_dev))
return PTR_ERR(lcdshadow_dev);
return 0;
}
static void lcdshadow_exit(void)
{
drm_privacy_screen_unregister(lcdshadow_dev);
}
static void lcdshadow_resume(void)
{
if (!lcdshadow_dev)
return;
mutex_lock(&lcdshadow_dev->lock);
lcdshadow_set_sw_state(lcdshadow_dev, lcdshadow_dev->sw_state);
mutex_unlock(&lcdshadow_dev->lock);
}
static int lcdshadow_read(struct seq_file *m)
{
if (!lcdshadow_dev) {
seq_puts(m, "status:\t\tnot supported\n");
} else {
seq_printf(m, "status:\t\t%d\n", lcdshadow_dev->hw_state);
seq_puts(m, "commands:\t0, 1\n");
}
return 0;
}
static int lcdshadow_write(char *buf)
{
char *cmd;
int res, state = -EINVAL;
if (!lcdshadow_dev)
return -ENODEV;
while ((cmd = strsep(&buf, ","))) {
res = kstrtoint(cmd, 10, &state);
if (res < 0)
return res;
}
if (state >= 2 || state < 0)
return -EINVAL;
mutex_lock(&lcdshadow_dev->lock);
res = lcdshadow_set_sw_state(lcdshadow_dev, state);
mutex_unlock(&lcdshadow_dev->lock);
drm_privacy_screen_call_notifier_chain(lcdshadow_dev);
return res;
}
static struct ibm_struct lcdshadow_driver_data = {
.name = "lcdshadow",
.exit = lcdshadow_exit,
.resume = lcdshadow_resume,
.read = lcdshadow_read,
.write = lcdshadow_write,
};
#define DYTC_CMD_QUERY 0
#define DYTC_QUERY_ENABLE_BIT 8
#define DYTC_QUERY_SUBREV_BIT 16
#define DYTC_QUERY_REV_BIT 28
#define DYTC_CMD_GET 2
#define DYTC_GET_LAPMODE_BIT 17
#define PALMSENSOR_PRESENT_BIT 0
#define PALMSENSOR_ON_BIT 1
static bool has_palmsensor;
static bool has_lapsensor;
static bool palm_state;
static bool lap_state;
static int dytc_version;
static int dytc_command(int command, int *output)
{
acpi_handle dytc_handle;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DYTC", &dytc_handle))) {
return -ENODEV;
}
if (!acpi_evalf(dytc_handle, output, NULL, "dd", command))
return -EIO;
return 0;
}
static int lapsensor_get(bool *present, bool *state)
{
int output, err;
*present = false;
err = dytc_command(DYTC_CMD_GET, &output);
if (err)
return err;
*present = true;
*state = output & BIT(DYTC_GET_LAPMODE_BIT) ? true : false;
return 0;
}
static int palmsensor_get(bool *present, bool *state)
{
acpi_handle psensor_handle;
int output;
*present = false;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GPSS", &psensor_handle)))
return -ENODEV;
if (!acpi_evalf(psensor_handle, &output, NULL, "d"))
return -EIO;
*present = output & BIT(PALMSENSOR_PRESENT_BIT) ? true : false;
*state = output & BIT(PALMSENSOR_ON_BIT) ? true : false;
return 0;
}
static void lapsensor_refresh(void)
{
bool state;
int err;
if (has_lapsensor) {
err = lapsensor_get(&has_lapsensor, &state);
if (err)
return;
if (lap_state != state) {
lap_state = state;
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "dytc_lapmode");
}
}
}
static void palmsensor_refresh(void)
{
bool state;
int err;
if (has_palmsensor) {
err = palmsensor_get(&has_palmsensor, &state);
if (err)
return;
if (palm_state != state) {
palm_state = state;
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "palmsensor");
}
}
}
static ssize_t dytc_lapmode_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
if (has_lapsensor)
return sysfs_emit(buf, "%d\n", lap_state);
return sysfs_emit(buf, "\n");
}
static DEVICE_ATTR_RO(dytc_lapmode);
static ssize_t palmsensor_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
if (has_palmsensor)
return sysfs_emit(buf, "%d\n", palm_state);
return sysfs_emit(buf, "\n");
}
static DEVICE_ATTR_RO(palmsensor);
static struct attribute *proxsensor_attributes[] = {
&dev_attr_dytc_lapmode.attr,
&dev_attr_palmsensor.attr,
NULL
};
static umode_t proxsensor_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
if (attr == &dev_attr_dytc_lapmode.attr) {
if (!has_lapsensor || dytc_version < 5)
return 0;
} else if (attr == &dev_attr_palmsensor.attr) {
if (!has_palmsensor)
return 0;
}
return attr->mode;
}
static const struct attribute_group proxsensor_attr_group = {
.is_visible = proxsensor_attr_is_visible,
.attrs = proxsensor_attributes,
};
static int tpacpi_proxsensor_init(struct ibm_init_struct *iibm)
{
int palm_err, lap_err;
palm_err = palmsensor_get(&has_palmsensor, &palm_state);
lap_err = lapsensor_get(&has_lapsensor, &lap_state);
if ((palm_err == -ENODEV) && (lap_err == -ENODEV))
return -ENODEV;
if (palm_err && (palm_err != -ENODEV))
return palm_err;
if (lap_err && (lap_err != -ENODEV))
return lap_err;
return 0;
}
static struct ibm_struct proxsensor_driver_data = {
.name = "proximity-sensor",
};
#define DYTC_CMD_SET 1
#define DYTC_CMD_MMC_GET 8
#define DYTC_CMD_RESET 0x1ff
#define DYTC_CMD_FUNC_CAP 3
#define DYTC_FC_MMC 27
#define DYTC_FC_PSC 29
#define DYTC_FC_AMT 31
#define DYTC_GET_FUNCTION_BIT 8
#define DYTC_GET_MODE_BIT 12
#define DYTC_SET_FUNCTION_BIT 12
#define DYTC_SET_MODE_BIT 16
#define DYTC_SET_VALID_BIT 20
#define DYTC_FUNCTION_STD 0
#define DYTC_FUNCTION_CQL 1
#define DYTC_FUNCTION_MMC 11
#define DYTC_FUNCTION_PSC 13
#define DYTC_FUNCTION_AMT 15
#define DYTC_MODE_AMT_ENABLE 0x1
#define DYTC_MODE_AMT_DISABLE 0xF
#define DYTC_MODE_MMC_PERFORM 2
#define DYTC_MODE_MMC_LOWPOWER 3
#define DYTC_MODE_MMC_BALANCE 0xF
#define DYTC_MODE_MMC_DEFAULT 0
#define DYTC_MODE_PSC_LOWPOWER 3
#define DYTC_MODE_PSC_BALANCE 5
#define DYTC_MODE_PSC_PERFORM 7
#define DYTC_MODE_PSCV9_LOWPOWER 1
#define DYTC_MODE_PSCV9_BALANCE 3
#define DYTC_MODE_PSCV9_PERFORM 4
#define DYTC_ERR_MASK 0xF
#define DYTC_ERR_SUCCESS 1
#define DYTC_SET_COMMAND(function, mode, on) \
(DYTC_CMD_SET | (function) << DYTC_SET_FUNCTION_BIT | \
(mode) << DYTC_SET_MODE_BIT | \
(on) << DYTC_SET_VALID_BIT)
#define DYTC_DISABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_MMC_BALANCE, 0)
#define DYTC_ENABLE_CQL DYTC_SET_COMMAND(DYTC_FUNCTION_CQL, DYTC_MODE_MMC_BALANCE, 1)
static int dytc_control_amt(bool enable);
static bool dytc_amt_active;
static enum platform_profile_option dytc_current_profile;
static atomic_t dytc_ignore_event = ATOMIC_INIT(0);
static DEFINE_MUTEX(dytc_mutex);
static int dytc_capabilities;
static bool dytc_mmc_get_available;
static int profile_force;
static int platform_psc_profile_lowpower = DYTC_MODE_PSC_LOWPOWER;
static int platform_psc_profile_balanced = DYTC_MODE_PSC_BALANCE;
static int platform_psc_profile_performance = DYTC_MODE_PSC_PERFORM;
static int convert_dytc_to_profile(int funcmode, int dytcmode,
enum platform_profile_option *profile)
{
switch (funcmode) {
case DYTC_FUNCTION_MMC:
switch (dytcmode) {
case DYTC_MODE_MMC_LOWPOWER:
*profile = PLATFORM_PROFILE_LOW_POWER;
break;
case DYTC_MODE_MMC_DEFAULT:
case DYTC_MODE_MMC_BALANCE:
*profile = PLATFORM_PROFILE_BALANCED;
break;
case DYTC_MODE_MMC_PERFORM:
*profile = PLATFORM_PROFILE_PERFORMANCE;
break;
default:
return -EINVAL;
}
return 0;
case DYTC_FUNCTION_PSC:
if (dytcmode == platform_psc_profile_lowpower)
*profile = PLATFORM_PROFILE_LOW_POWER;
else if (dytcmode == platform_psc_profile_balanced)
*profile = PLATFORM_PROFILE_BALANCED;
else if (dytcmode == platform_psc_profile_performance)
*profile = PLATFORM_PROFILE_PERFORMANCE;
else
return -EINVAL;
return 0;
case DYTC_FUNCTION_AMT:
*profile = PLATFORM_PROFILE_BALANCED;
return 0;
default:
pr_debug("unknown function 0x%x\n", funcmode);
return -EOPNOTSUPP;
}
return 0;
}
static int convert_profile_to_dytc(enum platform_profile_option profile, int *perfmode)
{
switch (profile) {
case PLATFORM_PROFILE_LOW_POWER:
if (dytc_capabilities & BIT(DYTC_FC_MMC))
*perfmode = DYTC_MODE_MMC_LOWPOWER;
else if (dytc_capabilities & BIT(DYTC_FC_PSC))
*perfmode = platform_psc_profile_lowpower;
break;
case PLATFORM_PROFILE_BALANCED:
if (dytc_capabilities & BIT(DYTC_FC_MMC))
*perfmode = DYTC_MODE_MMC_BALANCE;
else if (dytc_capabilities & BIT(DYTC_FC_PSC))
*perfmode = platform_psc_profile_balanced;
break;
case PLATFORM_PROFILE_PERFORMANCE:
if (dytc_capabilities & BIT(DYTC_FC_MMC))
*perfmode = DYTC_MODE_MMC_PERFORM;
else if (dytc_capabilities & BIT(DYTC_FC_PSC))
*perfmode = platform_psc_profile_performance;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static int dytc_profile_get(struct device *dev,
enum platform_profile_option *profile)
{
*profile = dytc_current_profile;
return 0;
}
static int dytc_control_amt(bool enable)
{
int dummy;
int err;
int cmd;
if (!(dytc_capabilities & BIT(DYTC_FC_AMT))) {
pr_warn("Attempting to toggle AMT on a system that doesn't advertise support\n");
return -ENODEV;
}
if (enable)
cmd = DYTC_SET_COMMAND(DYTC_FUNCTION_AMT, DYTC_MODE_AMT_ENABLE, enable);
else
cmd = DYTC_SET_COMMAND(DYTC_FUNCTION_AMT, DYTC_MODE_AMT_DISABLE, enable);
pr_debug("%sabling AMT (cmd 0x%x)", enable ? "en":"dis", cmd);
err = dytc_command(cmd, &dummy);
if (err)
return err;
dytc_amt_active = enable;
return 0;
}
static int dytc_cql_command(int command, int *output)
{
int err, cmd_err, dummy;
int cur_funcmode;
err = dytc_command(DYTC_CMD_GET, output);
if (err)
return err;
cur_funcmode = (*output >> DYTC_GET_FUNCTION_BIT) & 0xF;
if ((command == DYTC_CMD_GET) && (cur_funcmode != DYTC_FUNCTION_CQL))
return 0;
if (cur_funcmode == DYTC_FUNCTION_CQL) {
atomic_inc(&dytc_ignore_event);
err = dytc_command(DYTC_DISABLE_CQL, &dummy);
if (err)
return err;
}
cmd_err = dytc_command(command, output);
if (cur_funcmode == DYTC_FUNCTION_CQL) {
err = dytc_command(DYTC_ENABLE_CQL, &dummy);
if (err)
return err;
}
return cmd_err;
}
static int dytc_profile_set(struct device *dev,
enum platform_profile_option profile)
{
int perfmode;
int output;
int err;
err = mutex_lock_interruptible(&dytc_mutex);
if (err)
return err;
err = convert_profile_to_dytc(profile, &perfmode);
if (err)
goto unlock;
if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
if (profile == PLATFORM_PROFILE_BALANCED) {
err = dytc_cql_command(DYTC_CMD_RESET, &output);
if (err)
goto unlock;
} else {
err = dytc_cql_command(DYTC_SET_COMMAND(DYTC_FUNCTION_MMC, perfmode, 1),
&output);
if (err)
goto unlock;
}
} else if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
err = dytc_command(DYTC_SET_COMMAND(DYTC_FUNCTION_PSC, perfmode, 1), &output);
if (err)
goto unlock;
if (dytc_capabilities & BIT(DYTC_FC_AMT))
dytc_control_amt(profile == PLATFORM_PROFILE_BALANCED);
}
dytc_current_profile = profile;
unlock:
mutex_unlock(&dytc_mutex);
return err;
}
static int dytc_profile_probe(void *drvdata, unsigned long *choices)
{
set_bit(PLATFORM_PROFILE_LOW_POWER, choices);
set_bit(PLATFORM_PROFILE_BALANCED, choices);
set_bit(PLATFORM_PROFILE_PERFORMANCE, choices);
return 0;
}
static const struct platform_profile_ops dytc_profile_ops = {
.probe = dytc_profile_probe,
.profile_get = dytc_profile_get,
.profile_set = dytc_profile_set,
};
static void dytc_profile_refresh(void)
{
enum platform_profile_option profile;
int output = 0, err = 0;
int perfmode, funcmode = 0;
mutex_lock(&dytc_mutex);
if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
if (dytc_mmc_get_available)
err = dytc_command(DYTC_CMD_MMC_GET, &output);
else
err = dytc_cql_command(DYTC_CMD_GET, &output);
funcmode = DYTC_FUNCTION_MMC;
} else if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
err = dytc_command(DYTC_CMD_GET, &output);
funcmode = (output >> DYTC_GET_FUNCTION_BIT) & 0xF;
} else {
err = -ENODEV;
}
mutex_unlock(&dytc_mutex);
if (err)
return;
perfmode = (output >> DYTC_GET_MODE_BIT) & 0xF;
err = convert_dytc_to_profile(funcmode, perfmode, &profile);
if (!err && profile != dytc_current_profile) {
dytc_current_profile = profile;
platform_profile_notify(tpacpi_pprof);
}
}
static int tpacpi_dytc_profile_init(struct ibm_init_struct *iibm)
{
int err, output;
err = dytc_command(DYTC_CMD_QUERY, &output);
if (err)
return err;
if (output & BIT(DYTC_QUERY_ENABLE_BIT))
dytc_version = (output >> DYTC_QUERY_REV_BIT) & 0xF;
dbg_printk(TPACPI_DBG_INIT, "DYTC version %d\n", dytc_version);
if (dytc_version < 5)
return -ENODEV;
err = dytc_command(DYTC_CMD_FUNC_CAP, &dytc_capabilities);
if (err)
return err;
if (profile_force) {
switch (profile_force) {
case -1:
dytc_capabilities = 0;
break;
case 1:
dytc_capabilities = BIT(DYTC_FC_MMC);
break;
case 2:
dytc_capabilities = BIT(DYTC_FC_PSC);
break;
}
pr_debug("Profile selection forced: 0x%x\n", dytc_capabilities);
}
if (dytc_capabilities & BIT(DYTC_FC_MMC)) {
pr_debug("MMC is supported\n");
dytc_mmc_get_available = false;
if (dytc_version >= 6) {
err = dytc_command(DYTC_CMD_MMC_GET, &output);
if (!err && ((output & DYTC_ERR_MASK) == DYTC_ERR_SUCCESS))
dytc_mmc_get_available = true;
}
} else if (dytc_capabilities & BIT(DYTC_FC_PSC)) {
pr_debug("PSC is supported\n");
if (dytc_version >= 9) {
platform_psc_profile_lowpower = DYTC_MODE_PSCV9_LOWPOWER;
platform_psc_profile_balanced = DYTC_MODE_PSCV9_BALANCE;
platform_psc_profile_performance = DYTC_MODE_PSCV9_PERFORM;
}
} else {
dbg_printk(TPACPI_DBG_INIT, "No DYTC support available\n");
return -ENODEV;
}
dbg_printk(TPACPI_DBG_INIT,
"DYTC version %d: thermal mode available\n", dytc_version);
tpacpi_pprof = platform_profile_register(&tpacpi_pdev->dev, "thinkpad-acpi-profile",
NULL, &dytc_profile_ops);
if (IS_ERR(tpacpi_pprof))
return -ENODEV;
dytc_profile_refresh();
if (dytc_capabilities & BIT(DYTC_FC_PSC))
dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
return 0;
}
static void dytc_profile_exit(void)
{
if (!IS_ERR_OR_NULL(tpacpi_pprof))
platform_profile_remove(tpacpi_pprof);
}
static struct ibm_struct dytc_profile_driver_data = {
.name = "dytc-profile",
.exit = dytc_profile_exit,
};
struct keyboard_lang_data {
const char *lang_str;
int lang_code;
};
static const struct keyboard_lang_data keyboard_lang_data[] = {
{"be", 0x080c},
{"cz", 0x0405},
{"da", 0x0406},
{"de", 0x0c07},
{"en", 0x0000},
{"es", 0x2c0a},
{"et", 0x0425},
{"fr", 0x040c},
{"fr-ch", 0x100c},
{"hu", 0x040e},
{"it", 0x0410},
{"jp", 0x0411},
{"nl", 0x0413},
{"nn", 0x0414},
{"pl", 0x0415},
{"pt", 0x0816},
{"sl", 0x041b},
{"sv", 0x081d},
{"tr", 0x041f},
};
static int set_keyboard_lang_command(int command)
{
acpi_handle sskl_handle;
int output;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "SSKL", &sskl_handle))) {
return -ENODEV;
}
if (!acpi_evalf(sskl_handle, &output, NULL, "dd", command))
return -EIO;
return 0;
}
static int get_keyboard_lang(int *output)
{
acpi_handle gskl_handle;
int kbd_lang;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "GSKL", &gskl_handle))) {
return -ENODEV;
}
if (!acpi_evalf(gskl_handle, &kbd_lang, NULL, "dd", 0x02000000))
return -EIO;
if (kbd_lang & METHOD_ERR)
return -ENODEV;
*output = kbd_lang;
return 0;
}
static ssize_t keyboard_lang_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int output, err, i, len = 0;
err = get_keyboard_lang(&output);
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(keyboard_lang_data); i++) {
if (i)
len += sysfs_emit_at(buf, len, "%s", " ");
if (output == keyboard_lang_data[i].lang_code) {
len += sysfs_emit_at(buf, len, "[%s]", keyboard_lang_data[i].lang_str);
} else {
len += sysfs_emit_at(buf, len, "%s", keyboard_lang_data[i].lang_str);
}
}
len += sysfs_emit_at(buf, len, "\n");
return len;
}
static ssize_t keyboard_lang_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int err, i;
bool lang_found = false;
int lang_code = 0;
for (i = 0; i < ARRAY_SIZE(keyboard_lang_data); i++) {
if (sysfs_streq(buf, keyboard_lang_data[i].lang_str)) {
lang_code = keyboard_lang_data[i].lang_code;
lang_found = true;
break;
}
}
if (lang_found) {
lang_code = lang_code | 1 << 24;
err = set_keyboard_lang_command(lang_code);
if (err)
return err;
} else {
dev_err(&tpacpi_pdev->dev, "Unknown Keyboard language. Ignoring\n");
return -EINVAL;
}
tpacpi_disclose_usertask(attr->attr.name,
"keyboard language is set to %s\n", buf);
sysfs_notify(&tpacpi_pdev->dev.kobj, NULL, "keyboard_lang");
return count;
}
static DEVICE_ATTR_RW(keyboard_lang);
static struct attribute *kbdlang_attributes[] = {
&dev_attr_keyboard_lang.attr,
NULL
};
static umode_t kbdlang_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return tp_features.kbd_lang ? attr->mode : 0;
}
static const struct attribute_group kbdlang_attr_group = {
.is_visible = kbdlang_attr_is_visible,
.attrs = kbdlang_attributes,
};
static int tpacpi_kbdlang_init(struct ibm_init_struct *iibm)
{
int err, output;
err = get_keyboard_lang(&output);
tp_features.kbd_lang = !err;
return err;
}
static struct ibm_struct kbdlang_driver_data = {
.name = "kbdlang",
};
#define DPRC_GET_WWAN_ANTENNA_TYPE 0x40000
#define DPRC_WWAN_ANTENNA_TYPE_A_BIT BIT(4)
#define DPRC_WWAN_ANTENNA_TYPE_B_BIT BIT(8)
static bool has_antennatype;
static int wwan_antennatype;
static int dprc_command(int command, int *output)
{
acpi_handle dprc_handle;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "DPRC", &dprc_handle))) {
return -ENODEV;
}
if (!acpi_evalf(dprc_handle, output, NULL, "dd", command))
return -EIO;
if (*output & METHOD_ERR)
return -ENODEV;
return 0;
}
static int get_wwan_antenna(int *wwan_antennatype)
{
int output, err;
err = dprc_command(DPRC_GET_WWAN_ANTENNA_TYPE, &output);
if (err)
return err;
if (output & DPRC_WWAN_ANTENNA_TYPE_A_BIT)
*wwan_antennatype = 1;
else if (output & DPRC_WWAN_ANTENNA_TYPE_B_BIT)
*wwan_antennatype = 2;
else
return -ENODEV;
return 0;
}
static ssize_t wwan_antenna_type_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
switch (wwan_antennatype) {
case 1:
return sysfs_emit(buf, "type a\n");
case 2:
return sysfs_emit(buf, "type b\n");
default:
return -ENODATA;
}
}
static DEVICE_ATTR_RO(wwan_antenna_type);
static struct attribute *dprc_attributes[] = {
&dev_attr_wwan_antenna_type.attr,
NULL
};
static umode_t dprc_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return has_antennatype ? attr->mode : 0;
}
static const struct attribute_group dprc_attr_group = {
.is_visible = dprc_attr_is_visible,
.attrs = dprc_attributes,
};
static int tpacpi_dprc_init(struct ibm_init_struct *iibm)
{
int err;
err = get_wwan_antenna(&wwan_antennatype);
if (err)
return err;
has_antennatype = true;
return 0;
}
static struct ibm_struct dprc_driver_data = {
.name = "dprc",
};
#define AUXMAC_LEN 12
#define AUXMAC_START 9
#define AUXMAC_STRLEN 22
#define AUXMAC_BEGIN_MARKER 8
#define AUXMAC_END_MARKER 21
static char auxmac[AUXMAC_LEN + 1];
static int auxmac_init(struct ibm_init_struct *iibm)
{
acpi_status status;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *obj;
status = acpi_evaluate_object(NULL, "\\MACA", NULL, &buffer);
if (ACPI_FAILURE(status))
return -ENODEV;
obj = buffer.pointer;
if (obj->type != ACPI_TYPE_STRING || obj->string.length != AUXMAC_STRLEN) {
pr_info("Invalid buffer for MAC address pass-through.\n");
goto auxmacinvalid;
}
if (obj->string.pointer[AUXMAC_BEGIN_MARKER] != '#' ||
obj->string.pointer[AUXMAC_END_MARKER] != '#') {
pr_info("Invalid header for MAC address pass-through.\n");
goto auxmacinvalid;
}
if (strncmp(obj->string.pointer + AUXMAC_START, "XXXXXXXXXXXX", AUXMAC_LEN) != 0)
strscpy(auxmac, obj->string.pointer + AUXMAC_START, sizeof(auxmac));
else
strscpy(auxmac, "disabled", sizeof(auxmac));
free:
kfree(obj);
return 0;
auxmacinvalid:
strscpy(auxmac, "unavailable", sizeof(auxmac));
goto free;
}
static struct ibm_struct auxmac_data = {
.name = "auxmac",
};
static DEVICE_STRING_ATTR_RO(auxmac, 0444, auxmac);
static umode_t auxmac_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return auxmac[0] == 0 ? 0 : attr->mode;
}
static struct attribute *auxmac_attributes[] = {
&dev_attr_auxmac.attr.attr,
NULL
};
static const struct attribute_group auxmac_attr_group = {
.is_visible = auxmac_attr_is_visible,
.attrs = auxmac_attributes,
};
#define HWDD_GET_DMG_USBC 0x80000001
#define HWDD_GET_CAP 0
#define HWDD_NOT_SUPPORTED BIT(31)
#define HWDD_SUPPORT_USBC BIT(0)
#define PORT_STATUS GENMASK(7, 4)
#define LID_STATUS GENMASK(11, 8)
#define BASE_STATUS GENMASK(15, 12)
#define POS_STATUS GENMASK(3, 2)
#define PANEL_STATUS GENMASK(1, 0)
#define PORT_DETAIL_OFFSET 16
#define PANEL_TOP 0
#define PANEL_BASE 1
#define PANEL_LEFT 2
#define PANEL_RIGHT 3
#define POS_LEFT 0
#define POS_CENTER 1
#define POS_RIGHT 2
#define NUM_PORTS 4
static bool hwdd_support_available;
static bool ucdd_supported;
static int hwdd_command(int command, int *output)
{
acpi_handle hwdd_handle;
if (ACPI_FAILURE(acpi_get_handle(hkey_handle, "HWDD", &hwdd_handle)))
return -ENODEV;
if (!acpi_evalf(hwdd_handle, output, NULL, "dd", command))
return -EIO;
return 0;
}
static bool display_damage(char *buf, int *count, char *type, unsigned int dmg_status)
{
unsigned char lid_status, base_status, port_status;
unsigned char loc_status, pos_status, panel_status;
bool damage_detected = false;
int i;
port_status = FIELD_GET(PORT_STATUS, dmg_status);
lid_status = FIELD_GET(LID_STATUS, dmg_status);
base_status = FIELD_GET(BASE_STATUS, dmg_status);
for (i = 0; i < NUM_PORTS; i++) {
if (!(dmg_status & BIT(i)) || !(port_status & BIT(i)))
continue;
*count += sysfs_emit_at(buf, *count, "%s: ", type);
loc_status = (dmg_status >> (PORT_DETAIL_OFFSET + (4 * i))) & 0xF;
pos_status = FIELD_GET(POS_STATUS, loc_status);
panel_status = FIELD_GET(PANEL_STATUS, loc_status);
if (lid_status & BIT(i))
*count += sysfs_emit_at(buf, *count, "Lid, ");
if (base_status & BIT(i))
*count += sysfs_emit_at(buf, *count, "Base, ");
switch (pos_status) {
case PANEL_TOP:
*count += sysfs_emit_at(buf, *count, "Top, ");
break;
case PANEL_BASE:
*count += sysfs_emit_at(buf, *count, "Bottom, ");
break;
case PANEL_LEFT:
*count += sysfs_emit_at(buf, *count, "Left, ");
break;
case PANEL_RIGHT:
*count += sysfs_emit_at(buf, *count, "Right, ");
break;
default:
pr_err("Unexpected value %d in switch statement\n", pos_status);
}
switch (panel_status) {
case POS_LEFT:
*count += sysfs_emit_at(buf, *count, "Left port\n");
break;
case POS_CENTER:
*count += sysfs_emit_at(buf, *count, "Center port\n");
break;
case POS_RIGHT:
*count += sysfs_emit_at(buf, *count, "Right port\n");
break;
default:
*count += sysfs_emit_at(buf, *count, "Undefined\n");
break;
}
damage_detected = true;
}
return damage_detected;
}
static ssize_t hwdd_detail_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
unsigned int damage_status;
int err, count = 0;
if (!ucdd_supported)
return -ENODEV;
err = hwdd_command(HWDD_GET_DMG_USBC, &damage_status);
if (err)
return err;
if (!display_damage(buf, &count, "Type-C", damage_status))
count += sysfs_emit_at(buf, count, "No damage detected\n");
return count;
}
static ssize_t hwdd_status_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
unsigned int damage_status, port_status;
int err, i;
if (!ucdd_supported)
return -ENODEV;
err = hwdd_command(HWDD_GET_DMG_USBC, &damage_status);
if (err)
return err;
port_status = FIELD_GET(PORT_STATUS, damage_status);
for (i = 0; i < NUM_PORTS; i++) {
if (!(damage_status & BIT(i)))
continue;
if (port_status & BIT(i))
return sysfs_emit(buf, "1\n");
}
return sysfs_emit(buf, "0\n");
}
static int hwdd_raw_show(struct seq_file *m, void *v)
{
unsigned int damage_status;
int err;
if (!ucdd_supported)
return -ENODEV;
err = hwdd_command(HWDD_GET_DMG_USBC, &damage_status);
if (err)
return err;
seq_printf(m, "HWDD: 0x%x\n", damage_status);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(hwdd_raw);
static DEVICE_ATTR_RO(hwdd_status);
static DEVICE_ATTR_RO(hwdd_detail);
static struct attribute *hwdd_attributes[] = {
&dev_attr_hwdd_status.attr,
&dev_attr_hwdd_detail.attr,
NULL
};
static umode_t hwdd_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
return hwdd_support_available ? attr->mode : 0;
}
static const struct attribute_group hwdd_attr_group = {
.is_visible = hwdd_attr_is_visible,
.attrs = hwdd_attributes,
};
static int tpacpi_hwdd_init(struct ibm_init_struct *iibm)
{
int err, output;
err = hwdd_command(HWDD_GET_CAP, &output);
if (err)
return err;
if (!(output & HWDD_NOT_SUPPORTED))
return -ENODEV;
hwdd_support_available = true;
if (output & HWDD_SUPPORT_USBC)
ucdd_supported = true;
return err;
}
static struct ibm_struct hwdd_driver_data = {
.name = "hwdd",
};
static struct attribute *tpacpi_driver_attributes[] = {
&driver_attr_debug_level.attr,
&driver_attr_version.attr,
&driver_attr_interface_version.attr,
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
&driver_attr_wlsw_emulstate.attr,
&driver_attr_bluetooth_emulstate.attr,
&driver_attr_wwan_emulstate.attr,
&driver_attr_uwb_emulstate.attr,
#endif
NULL
};
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
static umode_t tpacpi_attr_is_visible(struct kobject *kobj,
struct attribute *attr, int n)
{
if (attr == &driver_attr_wlsw_emulstate.attr) {
if (!dbg_wlswemul)
return 0;
} else if (attr == &driver_attr_bluetooth_emulstate.attr) {
if (!dbg_bluetoothemul)
return 0;
} else if (attr == &driver_attr_wwan_emulstate.attr) {
if (!dbg_wwanemul)
return 0;
} else if (attr == &driver_attr_uwb_emulstate.attr) {
if (!dbg_uwbemul)
return 0;
}
return attr->mode;
}
#endif
static const struct attribute_group tpacpi_driver_attr_group = {
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
.is_visible = tpacpi_attr_is_visible,
#endif
.attrs = tpacpi_driver_attributes,
};
static const struct attribute_group *tpacpi_driver_groups[] = {
&tpacpi_driver_attr_group,
NULL,
};
static const struct attribute_group *tpacpi_groups[] = {
&adaptive_kbd_attr_group,
&hotkey_attr_group,
&bluetooth_attr_group,
&wan_attr_group,
&cmos_attr_group,
&proxsensor_attr_group,
&kbdlang_attr_group,
&dprc_attr_group,
&auxmac_attr_group,
&hwdd_attr_group,
NULL,
};
static const struct attribute_group *tpacpi_hwmon_groups[] = {
&thermal_attr_group,
&temp_label_attr_group,
&fan_attr_group,
NULL,
};
static const struct attribute_group *tpacpi_hwmon_driver_groups[] = {
&fan_driver_attr_group,
NULL,
};
static struct platform_driver tpacpi_pdriver = {
.driver = {
.name = TPACPI_DRVR_NAME,
.pm = &tpacpi_pm,
.groups = tpacpi_driver_groups,
.dev_groups = tpacpi_groups,
},
.shutdown = tpacpi_shutdown_handler,
};
static struct platform_driver tpacpi_hwmon_pdriver = {
.driver = {
.name = TPACPI_HWMON_DRVR_NAME,
.groups = tpacpi_hwmon_driver_groups,
},
};
static bool tpacpi_driver_event(const unsigned int hkey_event)
{
int camera_shutter_state;
switch (hkey_event) {
case TP_HKEY_EV_BRGHT_UP:
case TP_HKEY_EV_BRGHT_DOWN:
if (ibm_backlight_device)
tpacpi_brightness_notify_change();
return false;
case TP_HKEY_EV_VOL_UP:
case TP_HKEY_EV_VOL_DOWN:
case TP_HKEY_EV_VOL_MUTE:
if (alsa_card)
volume_alsa_notify_change();
return false;
case TP_HKEY_EV_KBD_LIGHT:
if (tp_features.kbdlight) {
enum led_brightness brightness;
mutex_lock(&kbdlight_mutex);
brightness = kbdlight_sysfs_get(NULL);
if (kbdlight_brightness != brightness) {
kbdlight_brightness = brightness;
led_classdev_notify_brightness_hw_changed(
&tpacpi_led_kbdlight.led_classdev, brightness);
}
mutex_unlock(&kbdlight_mutex);
}
return false;
case TP_HKEY_EV_DFR_CHANGE_ROW:
adaptive_keyboard_change_row();
return true;
case TP_HKEY_EV_DFR_S_QUICKVIEW_ROW:
adaptive_keyboard_s_quickview_row();
return true;
case TP_HKEY_EV_THM_CSM_COMPLETED:
lapsensor_refresh();
if (!atomic_add_unless(&dytc_ignore_event, -1, 0))
dytc_profile_refresh();
return true;
case TP_HKEY_EV_PRIVACYGUARD_TOGGLE:
if (lcdshadow_dev) {
enum drm_privacy_screen_status old_hw_state;
bool changed;
mutex_lock(&lcdshadow_dev->lock);
old_hw_state = lcdshadow_dev->hw_state;
lcdshadow_get_hw_state(lcdshadow_dev);
changed = lcdshadow_dev->hw_state != old_hw_state;
mutex_unlock(&lcdshadow_dev->lock);
if (changed)
drm_privacy_screen_call_notifier_chain(lcdshadow_dev);
}
return true;
case TP_HKEY_EV_AMT_TOGGLE:
if (!dytc_amt_active)
dytc_profile_set(NULL, PLATFORM_PROFILE_BALANCED);
else
dytc_control_amt(!dytc_amt_active);
return true;
case TP_HKEY_EV_CAMERASHUTTER_TOGGLE:
camera_shutter_state = get_camera_shutter();
if (camera_shutter_state < 0) {
pr_err("Error retrieving camera shutter state after shutter event\n");
return true;
}
mutex_lock(&tpacpi_inputdev_send_mutex);
input_report_switch(tpacpi_inputdev, SW_CAMERA_LENS_COVER, camera_shutter_state);
input_sync(tpacpi_inputdev);
mutex_unlock(&tpacpi_inputdev_send_mutex);
return true;
case TP_HKEY_EV_DOUBLETAP_TOGGLE:
tp_features.trackpoint_doubletap_enable =
!tp_features.trackpoint_doubletap_enable;
return true;
case TP_HKEY_EV_PROFILE_TOGGLE:
case TP_HKEY_EV_PROFILE_TOGGLE2:
platform_profile_cycle();
return true;
}
return false;
}
static struct proc_dir_entry *proc_dir;
static bool force_load;
#ifdef CONFIG_THINKPAD_ACPI_DEBUG
static const char * __init str_supported(int is_supported)
{
static char text_unsupported[] __initdata = "not supported";
return (is_supported) ? &text_unsupported[4] : &text_unsupported[0];
}
#endif
static struct dentry *tpacpi_dbg;
static void tpacpi_debugfs_init(void)
{
tpacpi_dbg = debugfs_create_dir("tpacpi", NULL);
debugfs_create_file("hwdd-raw", 0444, tpacpi_dbg, NULL, &hwdd_raw_fops);
}
static void tpacpi_debugfs_remove(void)
{
debugfs_remove_recursive(tpacpi_dbg);
}
static void ibm_exit(struct ibm_struct *ibm)
{
dbg_printk(TPACPI_DBG_EXIT, "removing %s\n", ibm->name);
list_del_init(&ibm->all_drivers);
if (ibm->flags.acpi_notify_installed) {
dbg_printk(TPACPI_DBG_EXIT,
"%s: acpi_remove_notify_handler\n", ibm->name);
BUG_ON(!ibm->acpi);
acpi_remove_notify_handler(*ibm->acpi->handle,
ibm->acpi->type,
dispatch_acpi_notify);
ibm->acpi->device->driver_data = NULL;
acpi_dev_put(ibm->acpi->device);
ibm->flags.acpi_notify_installed = 0;
}
if (ibm->flags.proc_created) {
dbg_printk(TPACPI_DBG_EXIT,
"%s: remove_proc_entry\n", ibm->name);
remove_proc_entry(ibm->name, proc_dir);
ibm->flags.proc_created = 0;
}
if (ibm->flags.init_called && ibm->exit) {
ibm->exit();
ibm->flags.init_called = 0;
}
dbg_printk(TPACPI_DBG_INIT, "finished removing %s\n", ibm->name);
}
static int __init ibm_init(struct ibm_init_struct *iibm)
{
int ret;
struct ibm_struct *ibm = iibm->data;
struct proc_dir_entry *entry;
BUG_ON(ibm == NULL);
INIT_LIST_HEAD(&ibm->all_drivers);
if (ibm->flags.experimental && !experimental)
return 0;
dbg_printk(TPACPI_DBG_INIT,
"probing for %s\n", ibm->name);
if (iibm->init) {
ret = iibm->init(iibm);
if (ret > 0 || ret == -ENODEV)
return 0;
if (ret)
return ret;
ibm->flags.init_called = 1;
}
if (ibm->acpi) {
if (ibm->acpi->notify) {
ret = setup_acpi_notify(ibm);
if (ret == -ENODEV) {
pr_notice("disabling subdriver %s\n",
ibm->name);
ret = 0;
goto err_out;
}
if (ret < 0)
goto err_out;
}
}
dbg_printk(TPACPI_DBG_INIT,
"%s installed\n", ibm->name);
if (ibm->read) {
umode_t mode = iibm->base_procfs_mode;
if (!mode)
mode = S_IRUGO;
if (ibm->write)
mode |= S_IWUSR;
entry = proc_create_data(ibm->name, mode, proc_dir,
&dispatch_proc_ops, ibm);
if (!entry) {
pr_err("unable to create proc entry %s\n", ibm->name);
ret = -ENODEV;
goto err_out;
}
ibm->flags.proc_created = 1;
}
list_add_tail(&ibm->all_drivers, &tpacpi_all_drivers);
return 0;
err_out:
dbg_printk(TPACPI_DBG_INIT,
"%s: at error exit path with result %d\n",
ibm->name, ret);
ibm_exit(ibm);
return (ret < 0) ? ret : 0;
}
static char __init tpacpi_parse_fw_id(const char * const s,
u32 *model, u16 *release)
{
int i;
if (!s || strlen(s) < 8)
goto invalid;
for (i = 0; i < 8; i++)
if (!((s[i] >= '0' && s[i] <= '9') ||
(s[i] >= 'A' && s[i] <= 'Z')))
goto invalid;
if (s[3] == 'T' || s[3] == 'N') {
*model = TPID(s[0], s[1]);
*release = TPVER(s[4], s[5]);
return s[2];
} else if (s[4] == 'T' || s[4] == 'N') {
*model = TPID3(s[0], s[1], s[2]);
*release = TPVER(s[5], s[6]);
return s[3];
}
invalid:
return '\0';
}
#define EC_FW_STRING_LEN 18
static void find_new_ec_fwstr(const struct dmi_header *dm, void *private)
{
char *ec_fw_string = (char *) private;
const char *dmi_data = (const char *)dm;
if (dm->type != 140 || dm->length < 0x0F ||
memcmp(dmi_data + 4, "LENOVO", 6) != 0 ||
dmi_data[0x0A] != 0x0B || dmi_data[0x0B] != 0x07 ||
dmi_data[0x0C] != 0x01)
return;
BUILD_BUG_ON(EC_FW_STRING_LEN <= 8);
memcpy(ec_fw_string, dmi_data + 0x0F, 8);
}
static int __must_check __init get_thinkpad_model_data(
struct thinkpad_id_data *tp)
{
const struct dmi_device *dev = NULL;
char ec_fw_string[EC_FW_STRING_LEN] = {0};
char const *s;
char t;
if (!tp)
return -EINVAL;
memset(tp, 0, sizeof(*tp));
if (dmi_name_in_vendors("IBM"))
tp->vendor = PCI_VENDOR_ID_IBM;
else if (dmi_name_in_vendors("LENOVO"))
tp->vendor = PCI_VENDOR_ID_LENOVO;
else if (dmi_name_in_vendors("NEC"))
tp->vendor = PCI_VENDOR_ID_LENOVO;
else
return 0;
s = dmi_get_system_info(DMI_BIOS_VERSION);
tp->bios_version_str = kstrdup(s, GFP_KERNEL);
if (s && !tp->bios_version_str)
return -ENOMEM;
t = tpacpi_parse_fw_id(tp->bios_version_str,
&tp->bios_model, &tp->bios_release);
if (t != 'E' && t != 'C')
return 0;
while ((dev = dmi_find_device(DMI_DEV_TYPE_OEM_STRING, NULL, dev))) {
if (sscanf(dev->name,
"IBM ThinkPad Embedded Controller -[%17c",
ec_fw_string) == 1) {
ec_fw_string[sizeof(ec_fw_string) - 1] = 0;
ec_fw_string[strcspn(ec_fw_string, " ]")] = 0;
break;
}
}
if (!ec_fw_string[0])
dmi_walk(find_new_ec_fwstr, &ec_fw_string);
if (ec_fw_string[0]) {
tp->ec_version_str = kstrdup(ec_fw_string, GFP_KERNEL);
if (!tp->ec_version_str)
return -ENOMEM;
t = tpacpi_parse_fw_id(ec_fw_string,
&tp->ec_model, &tp->ec_release);
if (t != 'H') {
pr_notice("ThinkPad firmware release %s doesn't match the known patterns\n",
ec_fw_string);
pr_notice("please report this to %s\n", TPACPI_MAIL);
}
}
s = dmi_get_system_info(DMI_PRODUCT_VERSION);
if (s && !(strncasecmp(s, "ThinkPad", 8) && strncasecmp(s, "Lenovo", 6))) {
tp->model_str = kstrdup(s, GFP_KERNEL);
if (!tp->model_str)
return -ENOMEM;
} else {
s = dmi_get_system_info(DMI_BIOS_VENDOR);
if (s && !(strncasecmp(s, "Lenovo", 6))) {
tp->model_str = kstrdup(s, GFP_KERNEL);
if (!tp->model_str)
return -ENOMEM;
}
}
s = dmi_get_system_info(DMI_PRODUCT_NAME);
tp->nummodel_str = kstrdup(s, GFP_KERNEL);
if (s && !tp->nummodel_str)
return -ENOMEM;
return 0;
}
static int __init probe_for_thinkpad(void)
{
int is_thinkpad;
if (acpi_disabled)
return -ENODEV;
if (!tpacpi_is_ibm() && !tpacpi_is_lenovo())
return -ENODEV;
is_thinkpad = (thinkpad_id.model_str != NULL) ||
(thinkpad_id.ec_model != 0) ||
tpacpi_is_fw_known();
tpacpi_acpi_handle_locate("ec", TPACPI_ACPI_EC_HID, &ec_handle);
if (!ec_handle) {
if (is_thinkpad)
pr_err("Not yet supported ThinkPad detected!\n");
return -ENODEV;
}
if (!is_thinkpad && !force_load)
return -ENODEV;
return 0;
}
static void __init thinkpad_acpi_init_banner(void)
{
pr_info("%s v%s\n", TPACPI_DESC, TPACPI_VERSION);
pr_info("%s\n", TPACPI_URL);
pr_info("ThinkPad BIOS %s, EC %s\n",
(thinkpad_id.bios_version_str) ?
thinkpad_id.bios_version_str : "unknown",
(thinkpad_id.ec_version_str) ?
thinkpad_id.ec_version_str : "unknown");
BUG_ON(!thinkpad_id.vendor);
if (thinkpad_id.model_str)
pr_info("%s %s, model %s\n",
(thinkpad_id.vendor == PCI_VENDOR_ID_IBM) ?
"IBM" : ((thinkpad_id.vendor ==
PCI_VENDOR_ID_LENOVO) ?
"Lenovo" : "Unknown vendor"),
thinkpad_id.model_str,
(thinkpad_id.nummodel_str) ?
thinkpad_id.nummodel_str : "unknown");
}
static struct ibm_init_struct ibms_init[] __initdata = {
{
.data = &thinkpad_acpi_driver_data,
},
{
.init = hotkey_init,
.data = &hotkey_driver_data,
},
{
.init = bluetooth_init,
.data = &bluetooth_driver_data,
},
{
.init = wan_init,
.data = &wan_driver_data,
},
{
.init = uwb_init,
.data = &uwb_driver_data,
},
#ifdef CONFIG_THINKPAD_ACPI_VIDEO
{
.init = video_init,
.base_procfs_mode = S_IRUSR,
.data = &video_driver_data,
},
#endif
{
.init = kbdlight_init,
.data = &kbdlight_driver_data,
},
{
.init = light_init,
.data = &light_driver_data,
},
{
.init = cmos_init,
.data = &cmos_driver_data,
},
{
.init = led_init,
.data = &led_driver_data,
},
{
.init = beep_init,
.data = &beep_driver_data,
},
{
.init = thermal_init,
.data = &thermal_driver_data,
},
{
.init = brightness_init,
.data = &brightness_driver_data,
},
{
.init = volume_init,
.data = &volume_driver_data,
},
{
.init = fan_init,
.data = &fan_driver_data,
},
{
.init = mute_led_init,
.data = &mute_led_driver_data,
},
{
.init = tpacpi_battery_init,
.data = &battery_driver_data,
},
{
.init = tpacpi_lcdshadow_init,
.data = &lcdshadow_driver_data,
},
{
.init = tpacpi_proxsensor_init,
.data = &proxsensor_driver_data,
},
{
.init = tpacpi_dytc_profile_init,
.data = &dytc_profile_driver_data,
},
{
.init = tpacpi_kbdlang_init,
.data = &kbdlang_driver_data,
},
{
.init = tpacpi_dprc_init,
.data = &dprc_driver_data,
},
{
.init = auxmac_init,
.data = &auxmac_data,
},
{
.init = tpacpi_hwdd_init,
.data = &hwdd_driver_data,
},
};
static int __init set_ibm_param(const char *val, const struct kernel_param *kp)
{
unsigned int i;
struct ibm_struct *ibm;
if (!kp || !kp->name || !val)
return -EINVAL;
for (i = 0; i < ARRAY_SIZE(ibms_init); i++) {
ibm = ibms_init[i].data;
if (!ibm || !ibm->name)
continue;
if (strcmp(ibm->name, kp->name) == 0 && ibm->write) {
if (strlen(val) > sizeof(ibms_init[i].param) - 1)
return -ENOSPC;
strscpy(ibms_init[i].param, val);
return 0;
}
}
return -EINVAL;
}
module_param(experimental, int, 0444);
MODULE_PARM_DESC(experimental,
"Enables experimental features when non-zero");
module_param_named(debug, dbg_level, uint, 0);
MODULE_PARM_DESC(debug, "Sets debug level bit-mask");
module_param(force_load, bool, 0444);
MODULE_PARM_DESC(force_load,
"Attempts to load the driver even on a mis-identified ThinkPad when true");
module_param_named(fan_control, fan_control_allowed, bool, 0444);
MODULE_PARM_DESC(fan_control,
"Enables setting fan parameters features when true");
module_param_named(brightness_mode, brightness_mode, uint, 0444);
MODULE_PARM_DESC(brightness_mode,
"Selects brightness control strategy: 0=auto, 1=EC, 2=UCMS, 3=EC+NVRAM");
module_param(brightness_enable, uint, 0444);
MODULE_PARM_DESC(brightness_enable,
"Enables backlight control when 1, disables when 0");
#ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT
module_param_named(volume_mode, volume_mode, uint, 0444);
MODULE_PARM_DESC(volume_mode,
"Selects volume control strategy: 0=auto, 1=EC, 2=N/A, 3=EC+NVRAM");
module_param_named(volume_capabilities, volume_capabilities, uint, 0444);
MODULE_PARM_DESC(volume_capabilities,
"Selects the mixer capabilities: 0=auto, 1=volume and mute, 2=mute only");
module_param_named(volume_control, volume_control_allowed, bool, 0444);
MODULE_PARM_DESC(volume_control,
"Enables software override for the console audio control when true");
module_param_named(software_mute, software_mute_requested, bool, 0444);
MODULE_PARM_DESC(software_mute,
"Request full software mute control");
module_param_named(index, alsa_index, int, 0444);
MODULE_PARM_DESC(index, "ALSA index for the ACPI EC Mixer");
module_param_named(id, alsa_id, charp, 0444);
MODULE_PARM_DESC(id, "ALSA id for the ACPI EC Mixer");
module_param_named(enable, alsa_enable, bool, 0444);
MODULE_PARM_DESC(enable, "Enable the ALSA interface for the ACPI EC Mixer");
#endif
#define TPACPI_PARAM(feature) \
module_param_call(feature, set_ibm_param, NULL, NULL, 0); \
MODULE_PARM_DESC(feature, "Simulates thinkpad-acpi procfs command at module load, see documentation")
TPACPI_PARAM(hotkey);
TPACPI_PARAM(bluetooth);
TPACPI_PARAM(video);
TPACPI_PARAM(light);
TPACPI_PARAM(cmos);
TPACPI_PARAM(led);
TPACPI_PARAM(beep);
TPACPI_PARAM(brightness);
TPACPI_PARAM(volume);
TPACPI_PARAM(fan);
#ifdef CONFIG_THINKPAD_ACPI_DEBUGFACILITIES
module_param(dbg_wlswemul, uint, 0444);
MODULE_PARM_DESC(dbg_wlswemul, "Enables WLSW emulation");
module_param_named(wlsw_state, tpacpi_wlsw_emulstate, bool, 0);
MODULE_PARM_DESC(wlsw_state,
"Initial state of the emulated WLSW switch");
module_param(dbg_bluetoothemul, uint, 0444);
MODULE_PARM_DESC(dbg_bluetoothemul, "Enables bluetooth switch emulation");
module_param_named(bluetooth_state, tpacpi_bluetooth_emulstate, bool, 0);
MODULE_PARM_DESC(bluetooth_state,
"Initial state of the emulated bluetooth switch");
module_param(dbg_wwanemul, uint, 0444);
MODULE_PARM_DESC(dbg_wwanemul, "Enables WWAN switch emulation");
module_param_named(wwan_state, tpacpi_wwan_emulstate, bool, 0);
MODULE_PARM_DESC(wwan_state,
"Initial state of the emulated WWAN switch");
module_param(dbg_uwbemul, uint, 0444);
MODULE_PARM_DESC(dbg_uwbemul, "Enables UWB switch emulation");
module_param_named(uwb_state, tpacpi_uwb_emulstate, bool, 0);
MODULE_PARM_DESC(uwb_state,
"Initial state of the emulated UWB switch");
#endif
module_param(profile_force, int, 0444);
MODULE_PARM_DESC(profile_force, "Force profile mode. -1=off, 1=MMC, 2=PSC");
static void thinkpad_acpi_module_exit(void)
{
tpacpi_lifecycle = TPACPI_LIFE_EXITING;
if (tpacpi_sensors_pdev) {
platform_driver_unregister(&tpacpi_hwmon_pdriver);
platform_device_unregister(tpacpi_sensors_pdev);
}
if (tp_features.platform_drv_registered)
platform_driver_unregister(&tpacpi_pdriver);
if (tpacpi_pdev)
platform_device_unregister(tpacpi_pdev);
if (proc_dir)
remove_proc_entry(TPACPI_PROC_DIR, acpi_root_dir);
if (tpacpi_wq)
destroy_workqueue(tpacpi_wq);
if (tpacpi_dbg)
tpacpi_debugfs_remove();
kfree(thinkpad_id.bios_version_str);
kfree(thinkpad_id.ec_version_str);
kfree(thinkpad_id.model_str);
kfree(thinkpad_id.nummodel_str);
}
static void tpacpi_subdrivers_release(void *data)
{
struct ibm_struct *ibm, *itmp;
list_for_each_entry_safe_reverse(ibm, itmp, &tpacpi_all_drivers, all_drivers)
ibm_exit(ibm);
dbg_printk(TPACPI_DBG_INIT, "finished subdriver exit path...\n");
}
static int __init tpacpi_pdriver_probe(struct platform_device *pdev)
{
int ret;
ret = devm_mutex_init(&pdev->dev, &tpacpi_inputdev_send_mutex);
if (ret)
return ret;
tpacpi_inputdev = devm_input_allocate_device(&pdev->dev);
if (!tpacpi_inputdev)
return -ENOMEM;
tpacpi_inputdev->name = "ThinkPad Extra Buttons";
tpacpi_inputdev->phys = TPACPI_DRVR_NAME "/input0";
tpacpi_inputdev->id.bustype = BUS_HOST;
tpacpi_inputdev->id.vendor = thinkpad_id.vendor;
tpacpi_inputdev->id.product = TPACPI_HKEY_INPUT_PRODUCT;
tpacpi_inputdev->id.version = TPACPI_HKEY_INPUT_VERSION;
tpacpi_inputdev->dev.parent = &tpacpi_pdev->dev;
tpacpi_detect_brightness_capabilities();
for (unsigned int i = 0; i < ARRAY_SIZE(ibms_init); i++) {
ret = ibm_init(&ibms_init[i]);
if (ret >= 0 && *ibms_init[i].param)
ret = ibms_init[i].data->write(ibms_init[i].param);
if (ret < 0) {
tpacpi_subdrivers_release(NULL);
return ret;
}
}
ret = devm_add_action_or_reset(&pdev->dev, tpacpi_subdrivers_release, NULL);
if (ret)
return ret;
ret = input_register_device(tpacpi_inputdev);
if (ret < 0)
pr_err("unable to register input device\n");
return ret;
}
static int __init tpacpi_hwmon_pdriver_probe(struct platform_device *pdev)
{
tpacpi_hwmon = devm_hwmon_device_register_with_groups(&pdev->dev, TPACPI_NAME,
NULL, tpacpi_hwmon_groups);
if (IS_ERR(tpacpi_hwmon))
pr_err("unable to register hwmon device\n");
return PTR_ERR_OR_ZERO(tpacpi_hwmon);
}
static int __init thinkpad_acpi_module_init(void)
{
const struct dmi_system_id *dmi_id;
int ret;
acpi_object_type obj_type;
tpacpi_lifecycle = TPACPI_LIFE_INIT;
ret = get_thinkpad_model_data(&thinkpad_id);
if (ret) {
pr_err("unable to get DMI data: %d\n", ret);
thinkpad_acpi_module_exit();
return ret;
}
ret = probe_for_thinkpad();
if (ret) {
thinkpad_acpi_module_exit();
return ret;
}
thinkpad_acpi_init_banner();
tpacpi_check_outdated_fw();
TPACPI_ACPIHANDLE_INIT(ecrd);
TPACPI_ACPIHANDLE_INIT(ecwr);
if (ecrd_handle) {
acpi_get_type(ecrd_handle, &obj_type);
if (obj_type != ACPI_TYPE_METHOD)
ecrd_handle = NULL;
}
if (ecwr_handle) {
acpi_get_type(ecwr_handle, &obj_type);
if (obj_type != ACPI_TYPE_METHOD)
ecwr_handle = NULL;
}
tpacpi_wq = create_singlethread_workqueue(TPACPI_WORKQUEUE_NAME);
if (!tpacpi_wq) {
thinkpad_acpi_module_exit();
return -ENOMEM;
}
proc_dir = proc_mkdir(TPACPI_PROC_DIR, acpi_root_dir);
if (!proc_dir) {
pr_err("unable to create proc dir " TPACPI_PROC_DIR "\n");
thinkpad_acpi_module_exit();
return -ENODEV;
}
tpacpi_debugfs_init();
dmi_id = dmi_first_match(fwbug_list);
if (dmi_id)
tp_features.quirks = dmi_id->driver_data;
tpacpi_pdev = platform_device_register_simple(TPACPI_DRVR_NAME, PLATFORM_DEVID_NONE,
NULL, 0);
if (IS_ERR(tpacpi_pdev)) {
ret = PTR_ERR(tpacpi_pdev);
tpacpi_pdev = NULL;
pr_err("unable to register platform device\n");
thinkpad_acpi_module_exit();
return ret;
}
ret = platform_driver_probe(&tpacpi_pdriver, tpacpi_pdriver_probe);
if (ret) {
pr_err("unable to register main platform driver\n");
thinkpad_acpi_module_exit();
return ret;
}
tp_features.platform_drv_registered = 1;
tpacpi_sensors_pdev = platform_create_bundle(&tpacpi_hwmon_pdriver,
tpacpi_hwmon_pdriver_probe,
NULL, 0, NULL, 0);
if (IS_ERR(tpacpi_sensors_pdev)) {
ret = PTR_ERR(tpacpi_sensors_pdev);
tpacpi_sensors_pdev = NULL;
pr_err("unable to register hwmon platform device/driver bundle\n");
thinkpad_acpi_module_exit();
return ret;
}
tpacpi_lifecycle = TPACPI_LIFE_RUNNING;
return 0;
}
MODULE_ALIAS(TPACPI_DRVR_SHORTNAME);
MODULE_DEVICE_TABLE(acpi, ibm_htk_device_ids);
#define IBM_BIOS_MODULE_ALIAS(__type) \
MODULE_ALIAS("dmi:bvnIBM:bvr" __type "ET??WW*")
IBM_BIOS_MODULE_ALIAS("I[MU]");
MODULE_AUTHOR("Borislav Deianov <borislav@users.sf.net>");
MODULE_AUTHOR("Henrique de Moraes Holschuh <hmh@hmh.eng.br>");
MODULE_DESCRIPTION(TPACPI_DESC);
MODULE_VERSION(TPACPI_VERSION);
MODULE_LICENSE("GPL");
module_init(thinkpad_acpi_module_init);
module_exit(thinkpad_acpi_module_exit);
