1 // SPDX-License-Identifier: GPL-2.0-or-later
56 #if 0   /* This mode has extremely non square pixels, testing use only */
73 	ret = usb_control_msg(gspca_dev->dev,  in vicam_control_msg()
74 			      usb_sndctrlpipe(gspca_dev->dev, 0),  in vicam_control_msg()
78 	if (ret < 0)  in vicam_control_msg()
89 	if (ret < 0)  in vicam_set_camera_power()
92 	if (state)  in vicam_set_camera_power()
104 	u8 *req_data = gspca_dev->usb_buf;  in vicam_read_frame()
105 	s32 expo = v4l2_ctrl_g_ctrl(gspca_dev->exposure);  in vicam_read_frame()
106 	s32 gain = v4l2_ctrl_g_ctrl(gspca_dev->gain);  in vicam_read_frame()
110 	if (gspca_dev->pixfmt.width == 256)  in vicam_read_frame()
111 		req_data[1] |= 0x01; /* low nibble x-scale */  in vicam_read_frame()
112 	if (gspca_dev->pixfmt.height <= 122) {  in vicam_read_frame()
113 		req_data[1] |= 0x10; /* high nibble y-scale */  in vicam_read_frame()
114 		unscaled_height = gspca_dev->pixfmt.height * 2;  in vicam_read_frame()
116 		unscaled_height = gspca_dev->pixfmt.height;  in vicam_read_frame()
118 	if (unscaled_height <= 200)  in vicam_read_frame()
120 	else if (unscaled_height <= 242) /* Yes 242 not 240 */  in vicam_read_frame()
125 	if (expo < 256) {  in vicam_read_frame()
127 		req_data[4] = 255 - expo;  in vicam_read_frame()
138 	req_data[8] = ((244 - unscaled_height) / 2) & ~0x01; /* vstart */  in vicam_read_frame()
139 	/* bytes 9-15 do not seem to affect exposure or image quality */  in vicam_read_frame()
141 	mutex_lock(&gspca_dev->usb_lock);  in vicam_read_frame()
143 	mutex_unlock(&gspca_dev->usb_lock);  in vicam_read_frame()
144 	if (ret < 0)  in vicam_read_frame()
147 	ret = usb_bulk_msg(gspca_dev->dev,  in vicam_read_frame()
148 			   usb_rcvbulkpipe(gspca_dev->dev, 0x81),  in vicam_read_frame()
151 	if (ret < 0 || act_len != size) {  in vicam_read_frame()
154 		return -EIO;  in vicam_read_frame()
163  * threads attempting to use gspca_dev->usb_buf we take the usb_lock when
170 	struct gspca_dev *gspca_dev = &sd->gspca_dev;  in vicam_dostream()
174 	frame_sz = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].sizeimage +  in vicam_dostream()
177 	if (!buffer) {  in vicam_dostream()
182 	while (gspca_dev->present && gspca_dev->streaming) {  in vicam_dostream()
184 		if (gspca_dev->frozen)  in vicam_dostream()
188 		if (ret < 0)  in vicam_dostream()
195 		   bother reading from the cam */  in vicam_dostream()
198 				frame_sz - HEADER_SIZE);  in vicam_dostream()
209 	struct cam *cam = &gspca_dev->cam;  in sd_config()  local
213 	cam->bulk = 1;  in sd_config()
214 	cam->bulk_size = 64;  in sd_config()
215 	cam->cam_mode = vicam_mode;  in sd_config()
216 	cam->nmodes = ARRAY_SIZE(vicam_mode);  in sd_config()
218 	INIT_WORK(&sd->work_struct, vicam_dostream);  in sd_config()
232 				    &gspca_dev->dev->dev);  in sd_init()
233 	if (ret) {  in sd_init()
239 	if (!firmware_buf) {  in sd_init()
240 		ret = -ENOMEM;  in sd_init()
243 	for (rec = (void *)fw->data; rec; rec = ihex_next_binrec(rec)) {  in sd_init()
244 		memcpy(firmware_buf, rec->data, be16_to_cpu(rec->len));  in sd_init()
246 					be16_to_cpu(rec->len));  in sd_init()
247 		if (ret < 0)  in sd_init()
264 	if (ret < 0)  in sd_start()
267 	schedule_work(&sd->work_struct);  in sd_start()
273 /* the usb_lock is held at entry - restore on exit */
279 	mutex_unlock(&gspca_dev->usb_lock);  in sd_stop0()
281 	flush_work(&dev->work_struct);  in sd_stop0()
282 	mutex_lock(&gspca_dev->usb_lock);  in sd_stop0()
284 	if (gspca_dev->present)  in sd_stop0()
290 	struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler;  in sd_init_controls()
292 	gspca_dev->vdev.ctrl_handler = hdl;  in sd_init_controls()
294 	gspca_dev->exposure = v4l2_ctrl_new_std(hdl, NULL,  in sd_init_controls()
296 	gspca_dev->gain = v4l2_ctrl_new_std(hdl, NULL,  in sd_init_controls()
299 	if (hdl->error) {  in sd_init_controls()
301 		return hdl->error;  in sd_init_controls()
315 /* sub-driver description */
325 /* -- device connect -- */