v4.19.13 snapshot.
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
new file mode 100644
index 0000000..3bf3d3c
--- /dev/null
+++ b/drivers/hid/hid-wiimote.h
@@ -0,0 +1,378 @@
+#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_FLAG_PRO_CALIB_DONE 0x040000
+
+#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_DRUMS,
+ WIIMOTE_EXT_GUITAR,
+ 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/cache data */
+ __u16 calib_bboard[4][3];
+ __s16 calib_pro_sticks[4];
+ __u8 pressure_drums[7];
+ __u8 cache_rumble;
+};
+
+struct wiimote_data {
+ struct hid_device *hdev;
+ struct input_dev *input;
+ struct work_struct rumble_worker;
+ struct led_classdev *leds[4];
+ struct input_dev *accel;
+ struct input_dev *ir;
+ struct power_supply *battery;
+ struct power_supply_desc battery_desc;
+ 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(to_hid_device(pdev))
+
+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)
+{
+ reinit_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