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Commit e3979a91 authored by David Herrmann's avatar David Herrmann Committed by Jiri Kosina
Browse files

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: default avatarDavid Herrmann <dh.herrmann@googlemail.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent 0370d7cb

drivers/hid/hid-wiimote.c

+18 −0
Original line number Diff line number Diff line
@@ -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)