#define DSS_SUBSYS_NAME "CORE"
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/export.h>
#include <linux/platform_device.h>
#include <linux/seq_file.h>
#include <linux/debugfs.h>
#include <linux/io.h>
#include <linux/device.h>
#include <linux/regulator/consumer.h>
#include <linux/suspend.h>
#include <linux/slab.h>
#include <video/omapfb_dss.h>
#include "dss.h"
#include "dss_features.h"
static struct {
struct platform_device *pdev;
const char *default_display_name;
} core;
static char *def_disp_name;
module_param_named(def_disp, def_disp_name, charp, 0);
MODULE_PARM_DESC(def_disp, "default display name");
const char *omapdss_get_default_display_name(void)
{
return core.default_display_name;
}
EXPORT_SYMBOL(omapdss_get_default_display_name);
enum omapdss_version omapdss_get_version(void)
{
struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
return pdata->version;
}
EXPORT_SYMBOL(omapdss_get_version);
struct platform_device *dss_get_core_pdev(void)
{
return core.pdev;
}
int dss_dsi_enable_pads(int dsi_id, unsigned lane_mask)
{
struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
if (!board_data->dsi_enable_pads)
return -ENOENT;
return board_data->dsi_enable_pads(dsi_id, lane_mask);
}
void dss_dsi_disable_pads(int dsi_id, unsigned lane_mask)
{
struct omap_dss_board_info *board_data = core.pdev->dev.platform_data;
if (!board_data->dsi_disable_pads)
return;
return board_data->dsi_disable_pads(dsi_id, lane_mask);
}
int dss_set_min_bus_tput(struct device *dev, unsigned long tput)
{
struct omap_dss_board_info *pdata = core.pdev->dev.platform_data;
if (pdata->set_min_bus_tput)
return pdata->set_min_bus_tput(dev, tput);
else
return 0;
}
#if defined(CONFIG_FB_OMAP2_DSS_DEBUGFS)
static int dss_show(struct seq_file *s, void *unused)
{
void (*func)(struct seq_file *) = s->private;
func(s);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(dss);
static struct dentry *dss_debugfs_dir;
static void dss_initialize_debugfs(void)
{
dss_debugfs_dir = debugfs_create_dir("omapdss", NULL);
debugfs_create_file("clk", S_IRUGO, dss_debugfs_dir,
&dss_debug_dump_clocks, &dss_fops);
}
static void dss_uninitialize_debugfs(void)
{
debugfs_remove_recursive(dss_debugfs_dir);
}
void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
{
debugfs_create_file(name, S_IRUGO, dss_debugfs_dir, write, &dss_fops);
}
#else
static inline void dss_initialize_debugfs(void)
{
}
static inline void dss_uninitialize_debugfs(void)
{
}
void dss_debugfs_create_file(const char *name, void (*write)(struct seq_file *))
{
}
#endif
static int omap_dss_pm_notif(struct notifier_block *b, unsigned long v, void *d)
{
DSSDBG("pm notif %lu\n", v);
switch (v) {
case PM_SUSPEND_PREPARE:
case PM_HIBERNATION_PREPARE:
case PM_RESTORE_PREPARE:
DSSDBG("suspending displays\n");
return dss_suspend_all_devices();
case PM_POST_SUSPEND:
case PM_POST_HIBERNATION:
case PM_POST_RESTORE:
DSSDBG("resuming displays\n");
return dss_resume_all_devices();
default:
return 0;
}
}
static struct notifier_block omap_dss_pm_notif_block = {
.notifier_call = omap_dss_pm_notif,
};
static int __init omap_dss_probe(struct platform_device *pdev)
{
core.pdev = pdev;
dss_features_init(omapdss_get_version());
dss_initialize_debugfs();
if (def_disp_name)
core.default_display_name = def_disp_name;
register_pm_notifier(&omap_dss_pm_notif_block);
return 0;
}
static void omap_dss_remove(struct platform_device *pdev)
{
unregister_pm_notifier(&omap_dss_pm_notif_block);
dss_uninitialize_debugfs();
}
static void omap_dss_shutdown(struct platform_device *pdev)
{
DSSDBG("shutdown\n");
dss_disable_all_devices();
}
static struct platform_driver omap_dss_driver = {
.remove = omap_dss_remove,
.shutdown = omap_dss_shutdown,
.driver = {
.name = "omapdss",
},
};
static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
dss_init_platform_driver,
dispc_init_platform_driver,
#ifdef CONFIG_FB_OMAP2_DSS_DSI
dsi_init_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_DPI
dpi_init_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_SDI
sdi_init_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_VENC
venc_init_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP4_DSS_HDMI
hdmi4_init_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP5_DSS_HDMI
hdmi5_init_platform_driver,
#endif
};
static void (*dss_output_drv_unreg_funcs[])(void) = {
#ifdef CONFIG_FB_OMAP5_DSS_HDMI
hdmi5_uninit_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP4_DSS_HDMI
hdmi4_uninit_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_VENC
venc_uninit_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_SDI
sdi_uninit_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_DPI
dpi_uninit_platform_driver,
#endif
#ifdef CONFIG_FB_OMAP2_DSS_DSI
dsi_uninit_platform_driver,
#endif
dispc_uninit_platform_driver,
dss_uninit_platform_driver,
};
static int __init omap_dss_init(void)
{
int r;
int i;
r = platform_driver_probe(&omap_dss_driver, omap_dss_probe);
if (r)
return r;
for (i = 0; i < ARRAY_SIZE(dss_output_drv_reg_funcs); ++i) {
r = dss_output_drv_reg_funcs[i]();
if (r)
goto err_reg;
}
return 0;
err_reg:
for (i = ARRAY_SIZE(dss_output_drv_reg_funcs) - i;
i < ARRAY_SIZE(dss_output_drv_reg_funcs);
++i)
dss_output_drv_unreg_funcs[i]();
platform_driver_unregister(&omap_dss_driver);
return r;
}
static void __exit omap_dss_exit(void)
{
int i;
for (i = 0; i < ARRAY_SIZE(dss_output_drv_unreg_funcs); ++i)
dss_output_drv_unreg_funcs[i]();
platform_driver_unregister(&omap_dss_driver);
}
module_init(omap_dss_init);
module_exit(omap_dss_exit);
MODULE_AUTHOR("Tomi Valkeinen <tomi.valkeinen@nokia.com>");
MODULE_DESCRIPTION("OMAP2/3 Display Subsystem");
MODULE_LICENSE("GPL v2");
