path: root/drivers/hid/hid-playstation.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  HID driver for Sony DualSense(TM) controller.
 *
 *  Copyright (c) 2020 Sony Interactive Entertainment
 */

#include <linux/bits.h>
#include <linux/crc32.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/idr.h>
#include <linux/input/mt.h>
#include <linux/leds.h>
#include <linux/led-class-multicolor.h>
#include <linux/module.h>

#include <asm/unaligned.h>

#include "hid-ids.h"

/* List of connected playstation devices. */
static DEFINE_MUTEX(ps_devices_lock);
static LIST_HEAD(ps_devices_list);

static DEFINE_IDA(ps_player_id_allocator);

#define HID_PLAYSTATION_VERSION_PATCH 0x8000

/* Base class for playstation devices. */
struct ps_device {
	struct list_head list;
	struct hid_device *hdev;
	spinlock_t lock;

	uint32_t player_id;

	struct power_supply_desc battery_desc;
	struct power_supply *battery;
	uint8_t battery_capacity;
	int battery_status;

	const char *input_dev_name; /* Name of primary input device. */
	uint8_t mac_address[6]; /* Note: stored in little endian order. */
	uint32_t hw_version;
	uint32_t fw_version;

	int (<