48 	struct gspca_dev gspca_dev;	/* !! must be the first item */  member
82 static int vicam_control_msg(struct gspca_dev *gspca_dev, u8 request,  in vicam_control_msg()  argument
87 	ret = usb_control_msg(gspca_dev->dev,  in vicam_control_msg()
88 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in vicam_control_msg()
98 static int vicam_set_camera_power(struct gspca_dev *gspca_dev, int state)  in vicam_set_camera_power()  argument
102 	ret = vicam_control_msg(gspca_dev, 0x50, state, 0, NULL, 0);  in vicam_set_camera_power()
107 		ret = vicam_control_msg(gspca_dev, 0x55, 1, 0, NULL, 0);  in vicam_set_camera_power()
115 static int vicam_read_frame(struct gspca_dev *gspca_dev, u8 *data, int size)  in vicam_read_frame()  argument
118 	u8 *req_data = gspca_dev->usb_buf;  in vicam_read_frame()
119 	s32 expo = v4l2_ctrl_g_ctrl(gspca_dev->exposure);  in vicam_read_frame()
120 	s32 gain = v4l2_ctrl_g_ctrl(gspca_dev->gain);  in vicam_read_frame()
124 	if (gspca_dev->pixfmt.width == 256)  in vicam_read_frame()
126 	if (gspca_dev->pixfmt.height <= 122) {  in vicam_read_frame()
128 		unscaled_height = gspca_dev->pixfmt.height * 2;  in vicam_read_frame()
130 		unscaled_height = gspca_dev->pixfmt.height;  in vicam_read_frame()
155 	mutex_lock(&gspca_dev->usb_lock);  in vicam_read_frame()
156 	ret = vicam_control_msg(gspca_dev, 0x51, 0x80, 0, req_data, 16);  in vicam_read_frame()
157 	mutex_unlock(&gspca_dev->usb_lock);  in vicam_read_frame()
161 	ret = usb_bulk_msg(gspca_dev->dev,  in vicam_read_frame()
162 			   usb_rcvbulkpipe(gspca_dev->dev, 0x81),  in vicam_read_frame()
184 	struct gspca_dev *gspca_dev = &sd->gspca_dev;  in vicam_dostream()  local
188 	frame_sz = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].sizeimage +  in vicam_dostream()
196 	while (gspca_dev->present && gspca_dev->streaming) {  in vicam_dostream()
198 		if (gspca_dev->frozen)  in vicam_dostream()
201 		ret = vicam_read_frame(gspca_dev, buffer, frame_sz);  in vicam_dostream()
210 		gspca_frame_add(gspca_dev, FIRST_PACKET,  in vicam_dostream()
213 		gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);  in vicam_dostream()
220 static int sd_config(struct gspca_dev *gspca_dev,  in sd_config()  argument
223 	struct cam *cam = &gspca_dev->cam;  in sd_config()
224 	struct sd *sd = (struct sd *)gspca_dev;  in sd_config()
238 static int sd_init(struct gspca_dev *gspca_dev)  in sd_init()  argument
246 				    &gspca_dev->dev->dev);  in sd_init()
259 		ret = vicam_control_msg(gspca_dev, 0xff, 0, 0, firmware_buf,  in sd_init()
272 static int sd_start(struct gspca_dev *gspca_dev)  in sd_start()  argument
274 	struct sd *sd = (struct sd *)gspca_dev;  in sd_start()
277 	ret = vicam_set_camera_power(gspca_dev, 1);  in sd_start()
290 static void sd_stop0(struct gspca_dev *gspca_dev)  in sd_stop0()  argument
292 	struct sd *dev = (struct sd *)gspca_dev;  in sd_stop0()
295 	mutex_unlock(&gspca_dev->usb_lock);  in sd_stop0()
299 	mutex_lock(&gspca_dev->usb_lock);  in sd_stop0()
301 	if (gspca_dev->present)  in sd_stop0()
302 		vicam_set_camera_power(gspca_dev, 0);  in sd_stop0()
305 static int sd_init_controls(struct gspca_dev *gspca_dev)  in sd_init_controls()  argument
307 	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;  in sd_init_controls()
309 	gspca_dev->vdev.ctrl_handler = hdl;  in sd_init_controls()
311 	gspca_dev->exposure = v4l2_ctrl_new_std(hdl, NULL,  in sd_init_controls()
313 	gspca_dev->gain = v4l2_ctrl_new_std(hdl, NULL,  in sd_init_controls()