1 // SPDX-License-Identifier: GPL-2.0-only
20 static void ov7660_dump_registers(struct sd *sd);
193 int ov7660_probe(struct sd *sd)  in ov7660_probe()  argument
205 		return -ENODEV;  in ov7660_probe()
213 			err = m5602_write_bridge(sd,  in ov7660_probe()
214 				preinit_ov7660[i][1],  in ov7660_probe()
218 			err = m5602_write_sensor(sd,  in ov7660_probe()
219 				preinit_ov7660[i][1], data, 1);  in ov7660_probe()
225 	if (m5602_read_sensor(sd, OV7660_PID, &prod_id, 1))  in ov7660_probe()
226 		return -ENODEV;  in ov7660_probe()
228 	if (m5602_read_sensor(sd, OV7660_VER, &ver_id, 1))  in ov7660_probe()
229 		return -ENODEV;  in ov7660_probe()
237 	return -ENODEV;  in ov7660_probe()
240 	sd->gspca_dev.cam.cam_mode = ov7660_modes;  in ov7660_probe()
241 	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(ov7660_modes);  in ov7660_probe()
246 int ov7660_init(struct sd *sd)  in ov7660_init()  argument
255 			err = m5602_write_bridge(sd,  in ov7660_init()
256 				init_ov7660[i][1],  in ov7660_init()
260 			err = m5602_write_sensor(sd,  in ov7660_init()
261 				init_ov7660[i][1], data, 1);  in ov7660_init()
268 		ov7660_dump_registers(sd);  in ov7660_init()
273 int ov7660_init_controls(struct sd *sd)  in ov7660_init_controls()  argument
275 	struct v4l2_ctrl_handler *hdl = &sd->gspca_dev.ctrl_handler;  in ov7660_init_controls()
277 	sd->gspca_dev.vdev.ctrl_handler = hdl;  in ov7660_init_controls()
281 			  0, 1, 1, 1);  in ov7660_init_controls()
283 			  V4L2_CID_EXPOSURE_AUTO, 1, 0, V4L2_EXPOSURE_AUTO);  in ov7660_init_controls()
285 	sd->autogain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops,  in ov7660_init_controls()
286 					 V4L2_CID_AUTOGAIN, 0, 1, 1, 1);  in ov7660_init_controls()
287 	sd->gain = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_GAIN, 0,  in ov7660_init_controls()
288 				     255, 1, OV7660_DEFAULT_GAIN);  in ov7660_init_controls()
290 	sd->hflip = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_HFLIP,  in ov7660_init_controls()
291 				      0, 1, 1, 0);  in ov7660_init_controls()
292 	sd->vflip = v4l2_ctrl_new_std(hdl, &ov7660_ctrl_ops, V4L2_CID_VFLIP,  in ov7660_init_controls()
293 				      0, 1, 1, 0);  in ov7660_init_controls()
295 	if (hdl->error) {  in ov7660_init_controls()
297 		return hdl->error;  in ov7660_init_controls()
300 	v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, false);  in ov7660_init_controls()
301 	v4l2_ctrl_cluster(2, &sd->hflip);  in ov7660_init_controls()
306 int ov7660_start(struct sd *sd)  in ov7660_start()  argument
311 int ov7660_stop(struct sd *sd)  in ov7660_stop()  argument
316 void ov7660_disconnect(struct sd *sd)  in ov7660_disconnect()  argument
318 	ov7660_stop(sd);  in ov7660_disconnect()
320 	sd->sensor = NULL;  in ov7660_disconnect()
327 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_set_gain()  local
331 	err = m5602_write_sensor(sd, OV7660_GAIN, &i2c_data, 1);  in ov7660_set_gain()
340 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_set_auto_white_balance()  local
344 	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_white_balance()
348 	i2c_data = ((i2c_data & 0xfd) | ((val & 0x01) << 1));  in ov7660_set_auto_white_balance()
349 	err = m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_white_balance()
358 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_set_auto_gain()  local
362 	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_gain()
368 	return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_gain()
376 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_set_auto_exposure()  local
380 	err = m5602_read_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_exposure()
387 	return m5602_write_sensor(sd, OV7660_COM8, &i2c_data, 1);  in ov7660_set_auto_exposure()
394 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_set_hvflip()  local
397 		  sd->hflip->val, sd->vflip->val);  in ov7660_set_hvflip()
399 	i2c_data = (sd->hflip->val << 5) | (sd->vflip->val << 4);  in ov7660_set_hvflip()
401 	err = m5602_write_sensor(sd, OV7660_MVFP, &i2c_data, 1);  in ov7660_set_hvflip()
409 		container_of(ctrl->handler, struct gspca_dev, ctrl_handler);  in ov7660_s_ctrl()
410 	struct sd *sd = (struct sd *) gspca_dev;  in ov7660_s_ctrl()  local
413 	if (!gspca_dev->streaming)  in ov7660_s_ctrl()
416 	switch (ctrl->id) {  in ov7660_s_ctrl()
418 		err = ov7660_set_auto_white_balance(gspca_dev, ctrl->val);  in ov7660_s_ctrl()
421 		err = ov7660_set_auto_exposure(gspca_dev, ctrl->val);  in ov7660_s_ctrl()
424 		err = ov7660_set_auto_gain(gspca_dev, ctrl->val);  in ov7660_s_ctrl()
425 		if (err || ctrl->val)  in ov7660_s_ctrl()
427 		err = ov7660_set_gain(gspca_dev, sd->gain->val);  in ov7660_s_ctrl()
433 		return -EINVAL;  in ov7660_s_ctrl()
439 static void ov7660_dump_registers(struct sd *sd)  in ov7660_dump_registers()  argument
445 		m5602_read_sensor(sd, address, &value, 1);  in ov7660_dump_registers()
456 		m5602_read_sensor(sd, address, &old_value, 1);  in ov7660_dump_registers()
457 		m5602_write_sensor(sd, address, test_value, 1);  in ov7660_dump_registers()
458 		m5602_read_sensor(sd, address, &ctrl_value, 1);  in ov7660_dump_registers()
466 		m5602_write_sensor(sd, address, &old_value, 1);  in ov7660_dump_registers()