/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_MISCDEVICE_H
#define _LINUX_MISCDEVICE_H
#include <linux/major.h>
#include <linux/list.h>
#include <linux/types.h>
#include <linux/device.h>

/*
 *      These allocations are managed by device@lanana.org. If you need
 *      an entry that is not assigned here, it can be moved and
 *      reassigned or dynamically set if a fixed value is not justified.
 */

#define PSMOUSE_MINOR           1
#define MS_BUSMOUSE_MINOR       2       /* unused */
#define ATIXL_BUSMOUSE_MINOR    3       /* unused */
/*#define AMIGAMOUSE_MINOR      4       FIXME OBSOLETE */
#define ATARIMOUSE_MINOR        5       /* unused */
#define SUN_MOUSE_MINOR         6       /* unused */
#define APOLLO_MOUSE_MINOR      7       /* unused */
#define PC110PAD_MINOR          9       /* unused */
/*#define ADB_MOUSE_MINOR       10      FIXME OBSOLETE */
#define WATCHDOG_MINOR          130     /* Watchdog timer     */
#define TEMP_MINOR              131     /* Temperature Sensor */
#define APM_MINOR_DEV           134
#define RTC_MINOR               135
/*#define EFI_RTC_MINOR         136     was EFI Time services */
#define VHCI_MINOR              137
#define SUN_OPENPROM_MINOR      139
#define DMAPI_MINOR             140     /* unused */
#define NVRAM_MINOR             144
#define SBUS_FLASH_MINOR        152
#define SGI_MMTIMER             153
#define PMU_MINOR               154
#define STORE_QUEUE_MINOR       155     /* unused */
#define LCD_MINOR               156
#define AC_MINOR                157
#define BUTTON_MINOR            158     /* Major 10, Minor 158, /dev/nwbutton */
#define NWFLASH_MINOR           160     /* MAJOR is 10 - miscdevice */
#define ENVCTRL_MINOR           162
#define I2O_MINOR               166
#define UCTRL_MINOR             174
#define AGPGART_MINOR           175
#define TOSH_MINOR_DEV          181
#define HWRNG_MINOR             183
/*#define MICROCODE_MINOR       184     unused */
#define KEYPAD_MINOR            185
#define IRNET_MINOR             187
#define D7S_MINOR               193
#define VFIO_MINOR              196
#define PXA3XX_GCU_MINOR        197
#define TUN_MINOR               200
#define CUSE_MINOR              203
#define MPT_MINOR               220
#define MPT2SAS_MINOR           221
#define MPT3SAS_MINOR           222
#define UINPUT_MINOR            223
#define MISC_MCELOG_MINOR       227
#define HPET_MINOR              228
#define FUSE_MINOR              229
#define SNAPSHOT_MINOR          231
#define KVM_MINOR               232
#define BTRFS_MINOR             234
#define AUTOFS_MINOR            235
#define MAPPER_CTRL_MINOR       236
#define LOOP_CTRL_MINOR         237
#define VHOST_NET_MINOR         238
#define UHID_MINOR              239
#define USERIO_MINOR            240
#define VHOST_VSOCK_MINOR       241
#define EISA_EEPROM_MINOR       241
#define RFKILL_MINOR            242

/*
 * Misc char device minor code space division related to below macro:
 *
 * <  255  : Fixed minor code
 * == 255  : Indicator to request dynamic minor code
 * >  255  : Dynamic minor code requested, 1048320 minor codes totally.
 */
#define MISC_DYNAMIC_MINOR      255

struct miscdevice {
        int minor;
        const char *name;
        const struct file_operations *fops;
        struct list_head list;
        struct device *parent;
        struct device *this_device;
        const struct attribute_group **groups;
        const char *nodename;
        umode_t mode;
};

extern int misc_register(struct miscdevice *misc);
extern void misc_deregister(struct miscdevice *misc);

/*
 * Helper macro for drivers that don't do anything special in the initcall.
 * This helps to eliminate boilerplate code.
 */
#define builtin_misc_device(__misc_device) \
        builtin_driver(__misc_device, misc_register)

/*
 * Helper macro for drivers that don't do anything special in module init / exit
 * call. This helps to eliminate boilerplate code.
 */
#define module_misc_device(__misc_device) \
        module_driver(__misc_device, misc_register, misc_deregister)

#define MODULE_ALIAS_MISCDEV(minor)                             \
        MODULE_ALIAS("char-major-" __stringify(MISC_MAJOR)      \
        "-" __stringify(minor))
#endif