diff options
Diffstat (limited to 'drivers/hid')
| -rw-r--r-- | drivers/hid/hid-wiimote.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c index 59a08933c73c..35dc293db40e 100644 --- a/drivers/hid/hid-wiimote.c +++ b/drivers/hid/hid-wiimote.c @@ -82,8 +82,10 @@ enum wiiproto_reqs { WIIPROTO_REQ_RUMBLE = 0x10, WIIPROTO_REQ_LED = 0x11, WIIPROTO_REQ_DRM = 0x12, + WIIPROTO_REQ_IR1 = 0x13, WIIPROTO_REQ_WMEM = 0x16, WIIPROTO_REQ_RMEM = 0x17, + WIIPROTO_REQ_IR2 = 0x1a, WIIPROTO_REQ_STATUS = 0x20, WIIPROTO_REQ_DATA = 0x21, WIIPROTO_REQ_RETURN = 0x22, @@ -366,6 +368,28 @@ static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel) wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); } +static void wiiproto_req_ir1(struct wiimote_data *wdata, __u8 flags) +{ + __u8 cmd[2]; + + cmd[0] = WIIPROTO_REQ_IR1; + cmd[1] = flags; + + wiiproto_keep_rumble(wdata, &cmd[1]); + wiimote_queue(wdata, cmd, sizeof(cmd)); +} + +static void wiiproto_req_ir2(struct wiimote_data *wdata, __u8 flags) +{ + __u8 cmd[2]; + + cmd[0] = WIIPROTO_REQ_IR2; + cmd[1] = flags; + + wiiproto_keep_rumble(wdata, &cmd[1]); + wiimote_queue(wdata, cmd, sizeof(cmd)); +} + #define wiiproto_req_wreg(wdata, os, buf, sz) \ wiiproto_req_wmem((wdata), false, (os), (buf), (sz)) @@ -416,6 +440,118 @@ static int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset, return ret; } +static int wiimote_init_ir(struct wiimote_data *wdata, __u16 mode) +{ + int ret; + unsigned long flags; + __u8 format = 0; + static const __u8 data_enable[] = { 0x01 }; + static const __u8 data_sens1[] = { 0x02, 0x00, 0x00, 0x71, 0x01, + 0x00, 0xaa, 0x00, 0x64 }; + static const __u8 data_sens2[] = { 0x63, 0x03 }; + static const __u8 data_fin[] = { 0x08 }; + + spin_lock_irqsave(&wdata->state.lock, flags); + + if (mode == (wdata->state.flags & WIIPROTO_FLAGS_IR)) { + spin_unlock_irqrestore(&wdata->state.lock, flags); + return 0; + } + + if (mode == 0) { + wdata->state.flags &= ~WIIPROTO_FLAGS_IR; + wiiproto_req_ir1(wdata, 0); + wiiproto_req_ir2(wdata, 0); + wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); + spin_unlock_irqrestore(&wdata->state.lock, flags); + return 0; + } + + spin_unlock_irqrestore(&wdata->state.lock, flags); + + ret = wiimote_cmd_acquire(wdata); + if (ret) + return ret; + + /* send PIXEL CLOCK ENABLE cmd first */ + spin_lock_irqsave(&wdata->state.lock, flags); + wiimote_cmd_set(wdata, WIIPROTO_REQ_IR1, 0); + wiiproto_req_ir1(wdata, 0x06); + spin_unlock_irqrestore(&wdata->state.lock, flags); + + ret = wiimote_cmd_wait(wdata); + if (ret) + goto unlock; + if (wdata->state.cmd_err) { + ret = -EIO; + goto unlock; + } + + /* enable IR LOGIC */ + spin_lock_irqsave(&wdata->state.lock, flags); + wiimote_cmd_set(wdata, WIIPROTO_REQ_IR2, 0); + wiiproto_req_ir2(wdata, 0x06); + spin_unlock_irqrestore(&wdata->state.lock, flags); + + ret = wiimote_cmd_wait(wdata); + if (ret) + goto unlock; + if (wdata->state.cmd_err) { + ret = -EIO; + goto unlock; + } + + /* enable IR cam but do not make it send data, yet */ + ret = wiimote_cmd_write(wdata, 0xb00030, data_enable, + sizeof(data_enable)); + if (ret) + goto unlock; + + /* write first sensitivity block */ + ret = wiimote_cmd_write(wdata, 0xb00000, data_sens1, + sizeof(data_sens1)); + if (ret) + goto unlock; + + /* write second sensitivity block */ + ret = wiimote_cmd_write(wdata, 0xb0001a, data_sens2, + sizeof(data_sens2)); + if (ret) + goto unlock; + + /* put IR cam into desired state */ + switch (mode) { + case WIIPROTO_FLAG_IR_FULL: + format = 5; + break; + case WIIPROTO_FLAG_IR_EXT: + format = 3; + break; + case WIIPROTO_FLAG_IR_BASIC: + format = 1; + break; + } + ret = wiimote_cmd_write(wdata, 0xb00033, &format, sizeof(format)); + if (ret) + goto unlock; + + /* make IR cam send data */ + ret = wiimote_cmd_write(wdata, 0xb00030, data_fin, sizeof(data_fin)); + if (ret) + goto unlock; + + /* request new DRM mode compatible to IR mode */ + spin_lock_irqsave(&wdata->state.lock, flags); + wdata->state.flags &= ~WIIPROTO_FLAGS_IR; + wdata->state.flags |= mode & WIIPROTO_FLAGS_IR; + wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); + spin_unlock_irqrestore(&wdata->state.lock, flags); + +unlock: + wiimote_cmd_release(wdata); + return ret; +} + static enum led_brightness wiimote_leds_get(struct led_classdev *led_dev) { struct wiimote_data *wdata; |