86 	struct gspca_dev gspca_dev;	/* !! must be the first item */  member
116 static int sq905_command(struct gspca_dev *gspca_dev, u16 index)  in sq905_command()  argument
120 	gspca_dev->usb_buf[0] = '\0';  in sq905_command()
121 	ret = usb_control_msg(gspca_dev->dev,  in sq905_command()
122 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in sq905_command()
125 			      SQ905_COMMAND, index, gspca_dev->usb_buf, 1,  in sq905_command()
132 	ret = usb_control_msg(gspca_dev->dev,  in sq905_command()
133 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in sq905_command()
136 			      SQ905_PING, 0, gspca_dev->usb_buf, 1,  in sq905_command()
149 static int sq905_ack_frame(struct gspca_dev *gspca_dev)  in sq905_ack_frame()  argument
153 	gspca_dev->usb_buf[0] = '\0';  in sq905_ack_frame()
154 	ret = usb_control_msg(gspca_dev->dev,  in sq905_ack_frame()
155 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in sq905_ack_frame()
158 			      SQ905_READ_DONE, 0, gspca_dev->usb_buf, 1,  in sq905_ack_frame()
172 sq905_read_data(struct gspca_dev *gspca_dev, u8 *data, int size, int need_lock)  in sq905_read_data()  argument
177 	gspca_dev->usb_buf[0] = '\0';  in sq905_read_data()
179 		mutex_lock(&gspca_dev->usb_lock);  in sq905_read_data()
180 	ret = usb_control_msg(gspca_dev->dev,  in sq905_read_data()
181 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in sq905_read_data()
184 			      SQ905_BULK_READ, size, gspca_dev->usb_buf,  in sq905_read_data()
187 		mutex_unlock(&gspca_dev->usb_lock);  in sq905_read_data()
192 	ret = usb_bulk_msg(gspca_dev->dev,  in sq905_read_data()
193 			   usb_rcvbulkpipe(gspca_dev->dev, 0x81),  in sq905_read_data()
215 	struct gspca_dev *gspca_dev = &dev->gspca_dev;  in sq905_dostream()  local
231 	frame_sz = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].sizeimage  in sq905_dostream()
234 	while (gspca_dev->present && gspca_dev->streaming) {  in sq905_dostream()
236 		if (gspca_dev->frozen)  in sq905_dostream()
248 		while (bytes_left > 0 && gspca_dev->present) {  in sq905_dostream()
251 			ret = sq905_read_data(gspca_dev, buffer, data_len, 1);  in sq905_dostream()
271 			gspca_frame_add(gspca_dev, packet_type,  in sq905_dostream()
277 				gspca_frame_add(gspca_dev, LAST_PACKET,  in sq905_dostream()
280 		if (gspca_dev->present) {  in sq905_dostream()
282 			mutex_lock(&gspca_dev->usb_lock);  in sq905_dostream()
283 			ret = sq905_ack_frame(gspca_dev);  in sq905_dostream()
284 			mutex_unlock(&gspca_dev->usb_lock);  in sq905_dostream()
290 	if (gspca_dev->present) {  in sq905_dostream()
291 		mutex_lock(&gspca_dev->usb_lock);  in sq905_dostream()
292 		sq905_command(gspca_dev, SQ905_CLEAR);  in sq905_dostream()
293 		mutex_unlock(&gspca_dev->usb_lock);  in sq905_dostream()
299 static int sd_config(struct gspca_dev *gspca_dev,  in sd_config()  argument
302 	struct cam *cam = &gspca_dev->cam;  in sd_config()
303 	struct sd *dev = (struct sd *) gspca_dev;  in sd_config()
316 static void sd_stop0(struct gspca_dev *gspca_dev)  in sd_stop0()  argument
318 	struct sd *dev = (struct sd *) gspca_dev;  in sd_stop0()
321 	mutex_unlock(&gspca_dev->usb_lock);  in sd_stop0()
325 	mutex_lock(&gspca_dev->usb_lock);  in sd_stop0()
329 static int sd_init(struct gspca_dev *gspca_dev)  in sd_init()  argument
337 	ret = sq905_command(gspca_dev, SQ905_CLEAR);  in sd_init()
340 	ret = sq905_command(gspca_dev, SQ905_ID);  in sd_init()
343 	ret = sq905_read_data(gspca_dev, gspca_dev->usb_buf, 4, 0);  in sd_init()
349 	ident = be32_to_cpup((__be32 *)gspca_dev->usb_buf);  in sd_init()
350 	ret = sq905_command(gspca_dev, SQ905_CLEAR);  in sd_init()
354 	gspca_dev->cam.cam_mode = sq905_mode;  in sd_init()
355 	gspca_dev->cam.nmodes = ARRAY_SIZE(sq905_mode);  in sd_init()
357 		gspca_dev->cam.nmodes--;  in sd_init()
360 		gspca_dev->cam.input_flags = V4L2_IN_ST_VFLIP;  in sd_init()
362 		gspca_dev->cam.input_flags = V4L2_IN_ST_VFLIP |  in sd_init()
368 static int sd_start(struct gspca_dev *gspca_dev)  in sd_start()  argument
370 	struct sd *dev = (struct sd *) gspca_dev;  in sd_start()
374 	switch (gspca_dev->curr_mode) {  in sd_start()
378 		ret = sq905_command(&dev->gspca_dev, SQ905_CAPTURE_HIGH);  in sd_start()
382 		ret = sq905_command(&dev->gspca_dev, SQ905_CAPTURE_MED);  in sd_start()
386 		ret = sq905_command(&dev->gspca_dev, SQ905_CAPTURE_LOW);  in sd_start()