[mirror_ubuntu-artful-kernel.git] / drivers / hid / hid-wiimote.h

#ifndef __HID_WIIMOTE_H
#define __HID_WIIMOTE_H

/*
 * HID driver for Nintendo Wii / Wii U peripherals
 * Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 */

#include <linux/completion.h>
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/input.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/power_supply.h>
#include <linux/spinlock.h>
#include <linux/timer.h>

#define WIIMOTE_NAME "Nintendo Wii Remote"
#define WIIMOTE_BUFSIZE 32

#define WIIPROTO_FLAG_LED1		0x01
#define WIIPROTO_FLAG_LED2		0x02
#define WIIPROTO_FLAG_LED3		0x04
#define WIIPROTO_FLAG_LED4		0x08
#define WIIPROTO_FLAG_RUMBLE		0x10
#define WIIPROTO_FLAG_ACCEL		0x20
#define WIIPROTO_FLAG_IR_BASIC		0x40
#define WIIPROTO_FLAG_IR_EXT		0x80
#define WIIPROTO_FLAG_IR_FULL		0xc0 /* IR_BASIC | IR_EXT */
#define WIIPROTO_FLAG_EXT_PLUGGED	0x0100
#define WIIPROTO_FLAG_EXT_USED		0x0200
#define WIIPROTO_FLAG_EXT_ACTIVE	0x0400
#define WIIPROTO_FLAG_MP_PLUGGED	0x0800
#define WIIPROTO_FLAG_MP_USED		0x1000
#define WIIPROTO_FLAG_MP_ACTIVE		0x2000
#define WIIPROTO_FLAG_EXITING		0x4000
#define WIIPROTO_FLAG_DRM_LOCKED	0x8000
#define WIIPROTO_FLAG_BUILTIN_MP	0x010000
#define WIIPROTO_FLAG_NO_MP		0x020000

#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
					WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
							WIIPROTO_FLAG_IR_FULL)

/* return flag for led \num */
#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))

enum wiiproto_keys {
	WIIPROTO_KEY_LEFT,
	WIIPROTO_KEY_RIGHT,
	WIIPROTO_KEY_UP,
	WIIPROTO_KEY_DOWN,
	WIIPROTO_KEY_PLUS,
	WIIPROTO_KEY_MINUS,
	WIIPROTO_KEY_ONE,
	WIIPROTO_KEY_TWO,
	WIIPROTO_KEY_A,
	WIIPROTO_KEY_B,
	WIIPROTO_KEY_HOME,
	WIIPROTO_KEY_COUNT
};

enum wiimote_devtype {
	WIIMOTE_DEV_PENDING,
	WIIMOTE_DEV_UNKNOWN,
	WIIMOTE_DEV_GENERIC,
	WIIMOTE_DEV_GEN10,
	WIIMOTE_DEV_GEN20,
	WIIMOTE_DEV_BALANCE_BOARD,
	WIIMOTE_DEV_PRO_CONTROLLER,
	WIIMOTE_DEV_NUM,
};

enum wiimote_exttype {
	WIIMOTE_EXT_NONE,
	WIIMOTE_EXT_UNKNOWN,
	WIIMOTE_EXT_NUNCHUK,
	WIIMOTE_EXT_CLASSIC_CONTROLLER,
	WIIMOTE_EXT_BALANCE_BOARD,
	WIIMOTE_EXT_PRO_CONTROLLER,
	WIIMOTE_EXT_NUM,
};

enum wiimote_mptype {
	WIIMOTE_MP_NONE,
	WIIMOTE_MP_UNKNOWN,
	WIIMOTE_MP_SINGLE,
	WIIMOTE_MP_PASSTHROUGH_NUNCHUK,
	WIIMOTE_MP_PASSTHROUGH_CLASSIC,
};

struct wiimote_buf {
	__u8 data[HID_MAX_BUFFER_SIZE];
	size_t size;
};

struct wiimote_queue {
	spinlock_t lock;
	struct work_struct worker;
	__u8 head;
	__u8 tail;
	struct wiimote_buf outq[WIIMOTE_BUFSIZE];
};

struct wiimote_state {
	spinlock_t lock;
	__u32 flags;
	__u8 accel_split[2];
	__u8 drm;
	__u8 devtype;
	__u8 exttype;
	__u8 mp;

	/* synchronous cmd requests */
	struct mutex sync;
	struct completion ready;
	int cmd;
	__u32 opt;

	/* results of synchronous requests */
	__u8 cmd_battery;
	__u8 cmd_err;
	__u8 *cmd_read_buf;
	__u8 cmd_read_size;

	/* calibration data */
	__u16 calib_bboard[4][3];
};

struct wiimote_data {
	struct hid_device *hdev;
	struct input_dev *input;
	struct led_classdev *leds[4];
	struct input_dev *accel;
	struct input_dev *ir;
	struct power_supply battery;
	struct input_dev *mp;
	struct timer_list timer;
	struct wiimote_debug *debug;

	union {
		struct input_dev *input;
	} extension;

	struct wiimote_queue queue;
	struct wiimote_state state;
	struct work_struct init_worker;
};

/* wiimote modules */

enum wiimod_module {
	WIIMOD_KEYS,
	WIIMOD_RUMBLE,
	WIIMOD_BATTERY,
	WIIMOD_LED1,
	WIIMOD_LED2,
	WIIMOD_LED3,
	WIIMOD_LED4,
	WIIMOD_ACCEL,
	WIIMOD_IR,
	WIIMOD_BUILTIN_MP,
	WIIMOD_NO_MP,
	WIIMOD_NUM,
	WIIMOD_NULL = WIIMOD_NUM,
};

#define WIIMOD_FLAG_INPUT		0x0001
#define WIIMOD_FLAG_EXT8		0x0002
#define WIIMOD_FLAG_EXT16		0x0004

struct wiimod_ops {
	__u16 flags;
	unsigned long arg;
	int (*probe) (const struct wiimod_ops *ops,
		      struct wiimote_data *wdata);
	void (*remove) (const struct wiimod_ops *ops,
			struct wiimote_data *wdata);

	void (*in_keys) (struct wiimote_data *wdata, const __u8 *keys);
	void (*in_accel) (struct wiimote_data *wdata, const __u8 *accel);
	void (*in_ir) (struct wiimote_data *wdata, const __u8 *ir, bool packed,
		       unsigned int id);
	void (*in_mp) (struct wiimote_data *wdata, const __u8 *mp);
	void (*in_ext) (struct wiimote_data *wdata, const __u8 *ext);
};

extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
extern const struct wiimod_ops wiimod_mp;

/* wiimote requests */

enum wiiproto_reqs {
	WIIPROTO_REQ_NULL = 0x0,
	WIIPROTO_REQ_RUMBLE = 0x10,
	WIIPROTO_REQ_LED = 0x11,
	WIIPROTO_REQ_DRM = 0x12,
	WIIPROTO_REQ_IR1 = 0x13,
	WIIPROTO_REQ_SREQ = 0x15,
	WIIPROTO_REQ_WMEM = 0x16,
	WIIPROTO_REQ_RMEM = 0x17,
	WIIPROTO_REQ_IR2 = 0x1a,
	WIIPROTO_REQ_STATUS = 0x20,
	WIIPROTO_REQ_DATA = 0x21,
	WIIPROTO_REQ_RETURN = 0x22,

	/* DRM_K: BB*2 */
	WIIPROTO_REQ_DRM_K = 0x30,

	/* DRM_KA: BB*2 AA*3 */
	WIIPROTO_REQ_DRM_KA = 0x31,

	/* DRM_KE: BB*2 EE*8 */
	WIIPROTO_REQ_DRM_KE = 0x32,

	/* DRM_KAI: BB*2 AA*3 II*12 */
	WIIPROTO_REQ_DRM_KAI = 0x33,

	/* DRM_KEE: BB*2 EE*19 */
	WIIPROTO_REQ_DRM_KEE = 0x34,

	/* DRM_KAE: BB*2 AA*3 EE*16 */
	WIIPROTO_REQ_DRM_KAE = 0x35,

	/* DRM_KIE: BB*2 II*10 EE*9 */
	WIIPROTO_REQ_DRM_KIE = 0x36,

	/* DRM_KAIE: BB*2 AA*3 II*10 EE*6 */
	WIIPROTO_REQ_DRM_KAIE = 0x37,

	/* DRM_E: EE*21 */
	WIIPROTO_REQ_DRM_E = 0x3d,

	/* DRM_SKAI1: BB*2 AA*1 II*18 */
	WIIPROTO_REQ_DRM_SKAI1 = 0x3e,

	/* DRM_SKAI2: BB*2 AA*1 II*18 */
	WIIPROTO_REQ_DRM_SKAI2 = 0x3f,

	WIIPROTO_REQ_MAX
};

#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
									dev))

void __wiimote_schedule(struct wiimote_data *wdata);

extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
extern void wiiproto_req_status(struct wiimote_data *wdata);
extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
						const __u8 *wmem, __u8 size);
extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
							__u8 *rmem, __u8 size);

#define wiiproto_req_rreg(wdata, os, sz) \
				wiiproto_req_rmem((wdata), false, (os), (sz))
#define wiiproto_req_reeprom(wdata, os, sz) \
				wiiproto_req_rmem((wdata), true, (os), (sz))
extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
						__u32 offset, __u16 size);

#ifdef CONFIG_DEBUG_FS

extern int wiidebug_init(struct wiimote_data *wdata);
extern void wiidebug_deinit(struct wiimote_data *wdata);

#else

static inline int wiidebug_init(void *u) { return 0; }
static inline void wiidebug_deinit(void *u) { }

#endif

/* requires the state.lock spinlock to be held */
static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
								__u32 opt)
{
	return wdata->state.cmd == cmd && wdata->state.opt == opt;
}

/* requires the state.lock spinlock to be held */
static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
{
	wdata->state.cmd = WIIPROTO_REQ_NULL;
	complete(&wdata->state.ready);
}

/* requires the state.lock spinlock to be held */
static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
{
	/* Abort synchronous request by waking up the sleeping caller. But
	 * reset the state.cmd field to an invalid value so no further event
	 * handlers will work with it. */
	wdata->state.cmd = WIIPROTO_REQ_MAX;
	complete(&wdata->state.ready);
}

static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
{
	return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
}

static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
{
	mutex_lock(&wdata->state.sync);
}

/* requires the state.lock spinlock to be held */
static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
								__u32 opt)
{
	INIT_COMPLETION(wdata->state.ready);
	wdata->state.cmd = cmd;
	wdata->state.opt = opt;
}

static inline void wiimote_cmd_release(struct wiimote_data *wdata)
{
	mutex_unlock(&wdata->state.sync);
}

static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
{
	int ret;

	/* The completion acts as implicit memory barrier so we can safely
	 * assume that state.cmd is set on success/failure and isn't accessed
	 * by any other thread, anymore. */

	ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
	if (ret < 0)
		return -ERESTARTSYS;
	else if (ret == 0)
		return -EIO;
	else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
		return -EIO;
	else
		return 0;
}

static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
{
	unsigned long ret;

	/* no locking needed; see wiimote_cmd_wait() */
	ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
	if (!ret)
		return -EIO;
	else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
		return -EIO;
	else
		return 0;
}

#endif
Commit	Line	Data
7e274400 DH	1	#ifndef __HID_WIIMOTE_H
	2	#define __HID_WIIMOTE_H
	3
	4	/*
92eda7e4 DH	5	* HID driver for Nintendo Wii / Wii U peripherals
92eda7e4 DH	6	* Copyright (c) 2011-2013 David Herrmann <dh.herrmann@gmail.com>
7e274400 DH	7	*/
	8
	9	/*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the Free
	12	* Software Foundation; either version 2 of the License, or (at your option)
	13	* any later version.
	14	*/
	15
	16	#include <linux/completion.h>
	17	#include <linux/device.h>
	18	#include <linux/hid.h>
	19	#include <linux/input.h>
	20	#include <linux/leds.h>
	21	#include <linux/module.h>
	22	#include <linux/mutex.h>
	23	#include <linux/power_supply.h>
	24	#include <linux/spinlock.h>
4148b6bf	25	#include <linux/timer.h>
7e274400 DH	26
	27	#define WIIMOTE_NAME "Nintendo Wii Remote"
	28	#define WIIMOTE_BUFSIZE 32
	29
	30	#define WIIPROTO_FLAG_LED1 0x01
	31	#define WIIPROTO_FLAG_LED2 0x02
	32	#define WIIPROTO_FLAG_LED3 0x04
	33	#define WIIPROTO_FLAG_LED4 0x08
	34	#define WIIPROTO_FLAG_RUMBLE 0x10
	35	#define WIIPROTO_FLAG_ACCEL 0x20
	36	#define WIIPROTO_FLAG_IR_BASIC 0x40
	37	#define WIIPROTO_FLAG_IR_EXT 0x80
	38	#define WIIPROTO_FLAG_IR_FULL 0xc0 /* IR_BASIC \| IR_EXT */
c57ff761	39	#define WIIPROTO_FLAG_EXT_PLUGGED 0x0100
4148b6bf DH	40	#define WIIPROTO_FLAG_EXT_USED 0x0200
	41	#define WIIPROTO_FLAG_EXT_ACTIVE 0x0400
	42	#define WIIPROTO_FLAG_MP_PLUGGED 0x0800
	43	#define WIIPROTO_FLAG_MP_USED 0x1000
	44	#define WIIPROTO_FLAG_MP_ACTIVE 0x2000
	45	#define WIIPROTO_FLAG_EXITING 0x4000
d76f89e1	46	#define WIIPROTO_FLAG_DRM_LOCKED 0x8000
9f329741 DH	47	#define WIIPROTO_FLAG_BUILTIN_MP 0x010000
9f329741 DH	48	#define WIIPROTO_FLAG_NO_MP 0x020000
c57ff761	49
7e274400 DH	50	#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 \| WIIPROTO_FLAG_LED2 \| \
	51	WIIPROTO_FLAG_LED3 \| WIIPROTO_FLAG_LED4)
	52	#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC \| WIIPROTO_FLAG_IR_EXT \| \
	53	WIIPROTO_FLAG_IR_FULL)
	54
	55	/* return flag for led \num */
	56	#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
	57
20cef813 DH	58	enum wiiproto_keys {
	59	WIIPROTO_KEY_LEFT,
	60	WIIPROTO_KEY_RIGHT,
	61	WIIPROTO_KEY_UP,
	62	WIIPROTO_KEY_DOWN,
	63	WIIPROTO_KEY_PLUS,
	64	WIIPROTO_KEY_MINUS,
	65	WIIPROTO_KEY_ONE,
	66	WIIPROTO_KEY_TWO,
	67	WIIPROTO_KEY_A,
	68	WIIPROTO_KEY_B,
	69	WIIPROTO_KEY_HOME,
	70	WIIPROTO_KEY_COUNT
	71	};
	72
c57ff761 DH	73	enum wiimote_devtype {
	74	WIIMOTE_DEV_PENDING,
	75	WIIMOTE_DEV_UNKNOWN,
	76	WIIMOTE_DEV_GENERIC,
	77	WIIMOTE_DEV_GEN10,
	78	WIIMOTE_DEV_GEN20,
f1d4bed4	79	WIIMOTE_DEV_BALANCE_BOARD,
b8e0fe31	80	WIIMOTE_DEV_PRO_CONTROLLER,
c57ff761 DH	81	WIIMOTE_DEV_NUM,
	82	};
	83
	84	enum wiimote_exttype {
	85	WIIMOTE_EXT_NONE,
	86	WIIMOTE_EXT_UNKNOWN,
b6ee67b3	87	WIIMOTE_EXT_NUNCHUK,
9d6f9ecb	88	WIIMOTE_EXT_CLASSIC_CONTROLLER,
f1d4bed4	89	WIIMOTE_EXT_BALANCE_BOARD,
b8e0fe31	90	WIIMOTE_EXT_PRO_CONTROLLER,
c57ff761 DH	91	WIIMOTE_EXT_NUM,
	92	};
	93
4148b6bf DH	94	enum wiimote_mptype {
	95	WIIMOTE_MP_NONE,
	96	WIIMOTE_MP_UNKNOWN,
	97	WIIMOTE_MP_SINGLE,
	98	WIIMOTE_MP_PASSTHROUGH_NUNCHUK,
	99	WIIMOTE_MP_PASSTHROUGH_CLASSIC,
	100	};
	101
7e274400 DH	102	struct wiimote_buf {
	103	__u8 data[HID_MAX_BUFFER_SIZE];
	104	size_t size;
	105	};
	106
13938538 DH	107	struct wiimote_queue {
	108	spinlock_t lock;
	109	struct work_struct worker;
	110	__u8 head;
	111	__u8 tail;
	112	struct wiimote_buf outq[WIIMOTE_BUFSIZE];
	113	};
	114
7e274400 DH	115	struct wiimote_state {
7e274400 DH	116	spinlock_t lock;
c57ff761	117	__u32 flags;
7e274400	118	__u8 accel_split[2];
43d782ae	119	__u8 drm;
c57ff761	120	__u8 devtype;
4148b6bf DH	121	__u8 exttype;
4148b6bf DH	122	__u8 mp;
7e274400 DH	123
	124	/* synchronous cmd requests */
	125	struct mutex sync;
	126	struct completion ready;
	127	int cmd;
	128	__u32 opt;
	129
	130	/* results of synchronous requests */
	131	__u8 cmd_battery;
	132	__u8 cmd_err;
fad8c0e3 DH	133	__u8 *cmd_read_buf;
fad8c0e3 DH	134	__u8 cmd_read_size;
f1d4bed4 DH	135
	136	/* calibration data */
	137	__u16 calib_bboard[4][3];
7e274400 DH	138	};
	139
	140	struct wiimote_data {
	141	struct hid_device *hdev;
	142	struct input_dev *input;
	143	struct led_classdev *leds[4];
	144	struct input_dev *accel;
	145	struct input_dev *ir;
	146	struct power_supply battery;
34472d37	147	struct input_dev *mp;
4148b6bf	148	struct timer_list timer;
43e5e7c6	149	struct wiimote_debug *debug;
7e274400	150
f1d4bed4 DH	151	union {
	152	struct input_dev *input;
	153	} extension;
	154
13938538	155	struct wiimote_queue queue;
7e274400	156	struct wiimote_state state;
c57ff761	157	struct work_struct init_worker;
7e274400 DH	158	};
7e274400 DH	159
27f06942 DH	160	/* wiimote modules */
	161
	162	enum wiimod_module {
20cef813 DH	163	WIIMOD_KEYS,
20cef813 DH	164	WIIMOD_RUMBLE,
dcf39231	165	WIIMOD_BATTERY,
6c5ae018 DH	166	WIIMOD_LED1,
	167	WIIMOD_LED2,
	168	WIIMOD_LED3,
	169	WIIMOD_LED4,
0ea16757	170	WIIMOD_ACCEL,
3b5f03c4	171	WIIMOD_IR,
9f329741 DH	172	WIIMOD_BUILTIN_MP,
9f329741 DH	173	WIIMOD_NO_MP,
27f06942 DH	174	WIIMOD_NUM,
	175	WIIMOD_NULL = WIIMOD_NUM,
	176	};
	177
	178	#define WIIMOD_FLAG_INPUT 0x0001
4148b6bf DH	179	#define WIIMOD_FLAG_EXT8 0x0002
4148b6bf DH	180	#define WIIMOD_FLAG_EXT16 0x0004
27f06942 DH	181
	182	struct wiimod_ops {
	183	__u16 flags;
	184	unsigned long arg;
	185	int (probe) (const struct wiimod_ops ops,
	186	struct wiimote_data *wdata);
	187	void (remove) (const struct wiimod_ops ops,
	188	struct wiimote_data *wdata);
	189
	190	void (in_keys) (struct wiimote_data wdata, const __u8 *keys);
	191	void (in_accel) (struct wiimote_data wdata, const __u8 *accel);
	192	void (in_ir) (struct wiimote_data wdata, const __u8 *ir, bool packed,
	193	unsigned int id);
4148b6bf DH	194	void (in_mp) (struct wiimote_data wdata, const __u8 *mp);
4148b6bf DH	195	void (in_ext) (struct wiimote_data wdata, const __u8 *ext);
27f06942 DH	196	};
	197
	198	extern const struct wiimod_ops *wiimod_table[WIIMOD_NUM];
4148b6bf DH	199	extern const struct wiimod_ops *wiimod_ext_table[WIIMOTE_EXT_NUM];
4148b6bf DH	200	extern const struct wiimod_ops wiimod_mp;
27f06942 DH	201
	202	/* wiimote requests */
	203
7e274400 DH	204	enum wiiproto_reqs {
	205	WIIPROTO_REQ_NULL = 0x0,
	206	WIIPROTO_REQ_RUMBLE = 0x10,
	207	WIIPROTO_REQ_LED = 0x11,
	208	WIIPROTO_REQ_DRM = 0x12,
	209	WIIPROTO_REQ_IR1 = 0x13,
	210	WIIPROTO_REQ_SREQ = 0x15,
	211	WIIPROTO_REQ_WMEM = 0x16,
	212	WIIPROTO_REQ_RMEM = 0x17,
	213	WIIPROTO_REQ_IR2 = 0x1a,
	214	WIIPROTO_REQ_STATUS = 0x20,
	215	WIIPROTO_REQ_DATA = 0x21,
	216	WIIPROTO_REQ_RETURN = 0x22,
4148b6bf DH	217
4148b6bf DH	218	/* DRM_K: BB2 /
7e274400	219	WIIPROTO_REQ_DRM_K = 0x30,
4148b6bf DH	220
4148b6bf DH	221	/* DRM_KA: BB2 AA3 */
7e274400	222	WIIPROTO_REQ_DRM_KA = 0x31,
4148b6bf DH	223
4148b6bf DH	224	/* DRM_KE: BB2 EE8 */
7e274400	225	WIIPROTO_REQ_DRM_KE = 0x32,
4148b6bf DH	226
4148b6bf DH	227	/* DRM_KAI: BB2 AA3 II12 /
7e274400	228	WIIPROTO_REQ_DRM_KAI = 0x33,
4148b6bf DH	229
4148b6bf DH	230	/* DRM_KEE: BB2 EE19 */
7e274400	231	WIIPROTO_REQ_DRM_KEE = 0x34,
4148b6bf DH	232
4148b6bf DH	233	/* DRM_KAE: BB2 AA3 EE16 /
7e274400	234	WIIPROTO_REQ_DRM_KAE = 0x35,
4148b6bf DH	235
4148b6bf DH	236	/* DRM_KIE: BB2 II10 EE9 /
7e274400	237	WIIPROTO_REQ_DRM_KIE = 0x36,
4148b6bf DH	238
4148b6bf DH	239	/* DRM_KAIE: BB2 AA3 II10 EE6 */
7e274400	240	WIIPROTO_REQ_DRM_KAIE = 0x37,
4148b6bf DH	241
4148b6bf DH	242	/* DRM_E: EE21 /
7e274400	243	WIIPROTO_REQ_DRM_E = 0x3d,
4148b6bf DH	244
4148b6bf DH	245	/* DRM_SKAI1: BB2 AA1 II18 /
7e274400	246	WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
4148b6bf DH	247
4148b6bf DH	248	/* DRM_SKAI2: BB2 AA1 II18 /
7e274400	249	WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
4148b6bf	250
43d782ae	251	WIIPROTO_REQ_MAX
7e274400 DH	252	};
	253
	254	#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
	255	dev))
	256
4148b6bf DH	257	void __wiimote_schedule(struct wiimote_data *wdata);
4148b6bf DH	258
7e274400	259	extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
20cef813	260	extern void wiiproto_req_rumble(struct wiimote_data *wdata, __u8 rumble);
6c5ae018	261	extern void wiiproto_req_leds(struct wiimote_data *wdata, int leds);
dcf39231	262	extern void wiiproto_req_status(struct wiimote_data *wdata);
0ea16757	263	extern void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel);
3b5f03c4 DH	264	extern void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags);
3b5f03c4 DH	265	extern void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags);
7e274400 DH	266	extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
7e274400 DH	267	const __u8 *wmem, __u8 size);
fad8c0e3 DH	268	extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
fad8c0e3 DH	269	__u8 *rmem, __u8 size);
7e274400	270
1d3452c6 DH	271	#define wiiproto_req_rreg(wdata, os, sz) \
	272	wiiproto_req_rmem((wdata), false, (os), (sz))
	273	#define wiiproto_req_reeprom(wdata, os, sz) \
	274	wiiproto_req_rmem((wdata), true, (os), (sz))
	275	extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
	276	__u32 offset, __u16 size);
	277
43e5e7c6 DH	278	#ifdef CONFIG_DEBUG_FS
	279
	280	extern int wiidebug_init(struct wiimote_data *wdata);
	281	extern void wiidebug_deinit(struct wiimote_data *wdata);
	282
	283	#else
	284
	285	static inline int wiidebug_init(void *u) { return 0; }
	286	static inline void wiidebug_deinit(void *u) { }
	287
	288	#endif
	289
7e274400 DH	290	/* requires the state.lock spinlock to be held */
	291	static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
	292	__u32 opt)
	293	{
	294	return wdata->state.cmd == cmd && wdata->state.opt == opt;
	295	}
	296
	297	/* requires the state.lock spinlock to be held */
	298	static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
	299	{
	300	wdata->state.cmd = WIIPROTO_REQ_NULL;
	301	complete(&wdata->state.ready);
	302	}
	303
d758b1f0 DH	304	/* requires the state.lock spinlock to be held */
	305	static inline void wiimote_cmd_abort(struct wiimote_data *wdata)
	306	{
	307	/* Abort synchronous request by waking up the sleeping caller. But
	308	* reset the state.cmd field to an invalid value so no further event
	309	* handlers will work with it. */
	310	wdata->state.cmd = WIIPROTO_REQ_MAX;
	311	complete(&wdata->state.ready);
	312	}
	313
7e274400 DH	314	static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
	315	{
	316	return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
	317	}
	318
c57ff761 DH	319	static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
	320	{
	321	mutex_lock(&wdata->state.sync);
	322	}
	323
7e274400 DH	324	/* requires the state.lock spinlock to be held */
	325	static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
	326	__u32 opt)
	327	{
	328	INIT_COMPLETION(wdata->state.ready);
	329	wdata->state.cmd = cmd;
	330	wdata->state.opt = opt;
	331	}
	332
	333	static inline void wiimote_cmd_release(struct wiimote_data *wdata)
	334	{
	335	mutex_unlock(&wdata->state.sync);
	336	}
	337
	338	static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
	339	{
	340	int ret;
	341
d758b1f0 DH	342	/* The completion acts as implicit memory barrier so we can safely
	343	* assume that state.cmd is set on success/failure and isn't accessed
	344	* by any other thread, anymore. */
	345
7e274400 DH	346	ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
	347	if (ret < 0)
	348	return -ERESTARTSYS;
	349	else if (ret == 0)
	350	return -EIO;
d758b1f0 DH	351	else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
d758b1f0 DH	352	return -EIO;
7e274400 DH	353	else
	354	return 0;
	355	}
	356
c57ff761 DH	357	static inline int wiimote_cmd_wait_noint(struct wiimote_data *wdata)
	358	{
	359	unsigned long ret;
	360
d758b1f0	361	/* no locking needed; see wiimote_cmd_wait() */
c57ff761 DH	362	ret = wait_for_completion_timeout(&wdata->state.ready, HZ);
	363	if (!ret)
	364	return -EIO;
d758b1f0 DH	365	else if (wdata->state.cmd != WIIPROTO_REQ_NULL)
d758b1f0 DH	366	return -EIO;
c57ff761 DH	367	else
	368	return 0;
	369	}
	370
7e274400	371	#endif