diff options
Diffstat (limited to 'drivers/hid')
-rw-r--r-- | drivers/hid/hid-wiimote-core.c | 134 | ||||
-rw-r--r-- | drivers/hid/hid-wiimote.h | 163 |
2 files changed, 166 insertions, 131 deletions
diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c index 76739c07fa3c..c955d500c81f 100644 --- a/drivers/hid/hid-wiimote-core.c +++ b/drivers/hid/hid-wiimote-core.c @@ -20,91 +20,9 @@ #include <linux/power_supply.h> #include <linux/spinlock.h> #include "hid-ids.h" +#include "hid-wiimote.h" #define WIIMOTE_VERSION "0.2" -#define WIIMOTE_NAME "Nintendo Wii Remote" -#define WIIMOTE_BUFSIZE 32 - -struct wiimote_buf { - __u8 data[HID_MAX_BUFFER_SIZE]; - size_t size; -}; - -struct wiimote_state { - spinlock_t lock; - __u8 flags; - __u8 accel_split[2]; - - /* synchronous cmd requests */ - struct mutex sync; - struct completion ready; - int cmd; - __u32 opt; - - /* results of synchronous requests */ - __u8 cmd_battery; - __u8 cmd_err; -}; - -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; - - spinlock_t qlock; - __u8 head; - __u8 tail; - struct wiimote_buf outq[WIIMOTE_BUFSIZE]; - struct work_struct worker; - - struct wiimote_state state; -}; - -#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 \num */ -#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1)) - -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, -}; enum wiiproto_keys { WIIPROTO_KEY_LEFT, @@ -139,52 +57,6 @@ static enum power_supply_property wiimote_battery_props[] = { POWER_SUPPLY_PROP_CAPACITY }; -/* 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; -} - static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer, size_t count) { @@ -347,7 +219,7 @@ static __u8 select_drm(struct wiimote_data *wdata) } } -static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm) +void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm) { __u8 cmd[3]; @@ -441,7 +313,7 @@ static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom, } /* requries the cmd-mutex to be held */ -static int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, +int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, const __u8 *wmem, __u8 size) { unsigned long flags; diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h new file mode 100644 index 000000000000..d78f79c08901 --- /dev/null +++ b/drivers/hid/hid-wiimote.h @@ -0,0 +1,163 @@ +#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 \num */ +#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]; + + /* synchronous cmd requests */ + struct mutex sync; + struct completion ready; + int cmd; + __u32 opt; + + /* results of synchronous requests */ + __u8 cmd_battery; + __u8 cmd_err; +}; + +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; + + 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, +}; + +#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); + +/* 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 |