From e3979a9189d744ffecae1bcd36ae0a8b6d22f65f Mon Sep 17 00:00:00 2001 From: David Herrmann Date: Tue, 6 Sep 2011 13:50:38 +0200 Subject: [PATCH] HID: wiimote: Add status request The wiimote does not send status reports continuously so this adds a helper function to request a status report and parses the battery charge level. Signed-off-by: David Herrmann Signed-off-by: Jiri Kosina --- drivers/hid/hid-wiimote.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote.c index 66583986bcdb..48198cb0fed2 100644 --- a/drivers/hid/hid-wiimote.c +++ b/drivers/hid/hid-wiimote.c @@ -41,6 +41,7 @@ struct wiimote_state { __u32 opt; /* results of synchronous requests */ + __u8 cmd_battery; __u8 cmd_err; }; @@ -83,6 +84,7 @@ enum wiiproto_reqs { 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, @@ -354,6 +356,17 @@ static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm) wiimote_queue(wdata, cmd, sizeof(cmd)); } +static void wiiproto_req_status(struct wiimote_data *wdata) +{ + __u8 cmd[2]; + + cmd[0] = WIIPROTO_REQ_SREQ; + cmd[1] = 0; + + wiiproto_keep_rumble(wdata, &cmd[1]); + wiimote_queue(wdata, cmd, sizeof(cmd)); +} + static void wiiproto_req_accel(struct wiimote_data *wdata, __u8 accel) { accel = !!accel; @@ -805,6 +818,11 @@ static void handler_status(struct wiimote_data *wdata, const __u8 *payload) /* on status reports the drm is reset so we need to resend the drm */ wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL); + + if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) { + wdata->state.cmd_battery = payload[5]; + wiimote_cmd_complete(wdata); + } } static void handler_data(struct wiimote_data *wdata, const __u8 *payload) -- 2.20.1