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drivers/hid/hid-wiimote.h
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#ifndef __HID_WIIMOTE_H #define __HID_WIIMOTE_H /* * HID driver for Nintendo Wiimote devices * Copyright (c) 2011 David Herrmann */ /* * 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> #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_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 um */ #define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1)) struct wiimote_buf { __u8 data[HID_MAX_BUFFER_SIZE]; size_t size; }; struct wiimote_state { spinlock_t lock; __u8 flags; __u8 accel_split[2]; |
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__u8 drm; |
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/* synchronous cmd requests */ struct mutex sync; struct completion ready; int cmd; __u32 opt; /* results of synchronous requests */ __u8 cmd_battery; __u8 cmd_err; |
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__u8 *cmd_read_buf; __u8 cmd_read_size; |
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}; 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; |
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struct wiimote_ext *ext; |
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struct wiimote_debug *debug; |
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spinlock_t qlock; __u8 head; __u8 tail; struct wiimote_buf outq[WIIMOTE_BUFSIZE]; struct work_struct worker; struct wiimote_state state; }; 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, WIIPROTO_REQ_DRM_K = 0x30, WIIPROTO_REQ_DRM_KA = 0x31, WIIPROTO_REQ_DRM_KE = 0x32, WIIPROTO_REQ_DRM_KAI = 0x33, WIIPROTO_REQ_DRM_KEE = 0x34, WIIPROTO_REQ_DRM_KAE = 0x35, WIIPROTO_REQ_DRM_KIE = 0x36, WIIPROTO_REQ_DRM_KAIE = 0x37, WIIPROTO_REQ_DRM_E = 0x3d, WIIPROTO_REQ_DRM_SKAI1 = 0x3e, WIIPROTO_REQ_DRM_SKAI2 = 0x3f, |
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WIIPROTO_REQ_MAX |
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}; #define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \ dev)) extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm); extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, const __u8 *wmem, __u8 size); |
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extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, __u8 *rmem, __u8 size); |
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#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); |
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#ifdef CONFIG_HID_WIIMOTE_EXT extern int wiiext_init(struct wiimote_data *wdata); extern void wiiext_deinit(struct wiimote_data *wdata); extern void wiiext_event(struct wiimote_data *wdata, bool plugged); extern bool wiiext_active(struct wiimote_data *wdata); |
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extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload); |
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#else static inline int wiiext_init(void *u) { return 0; } static inline void wiiext_deinit(void *u) { } static inline void wiiext_event(void *u, bool p) { } static inline bool wiiext_active(void *u) { return false; } |
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static inline void wiiext_handle(void *u, const __u8 *p) { } |
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#endif |
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#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 |
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/* 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); } static inline int wiimote_cmd_acquire(struct wiimote_data *wdata) { return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0; } /* 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; ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ); if (ret < 0) return -ERESTARTSYS; else if (ret == 0) return -EIO; else return 0; } #endif |