4  * SPDX-License-Identifier: Apache-2.0
213 	/* Brightness Control, with signal -128 to +128, 0x00 is middle value */
216 	/* Internal clock pre-scalar,F(internal clock) = F(input clock)/(Bit[5:0]+1) */
217 	{OV7670_CLKRC, 0x80}, /* Clock Div, Input/(n+1), bit6 set to 1 to disable divider */
233 	{OV7670_DNSTH, 0x00}, /* De-noise Strength */
268 	/* AGC/AEC - Automatic Gain Control/Automatic exposure Control */
327 	/* Histogram-based AEC/AGC Control */
347 	caps->format_caps = fmts;  in ov7670_get_caps()
354 	const struct ov7670_config *config = dev->config;  in ov7670_set_fmt()
355 	struct ov7670_data *data = dev->data;  in ov7670_set_fmt()
360 	if (fmt->pixelformat != VIDEO_PIX_FMT_RGB565 && fmt->pixelformat != VIDEO_PIX_FMT_YUYV) {  in ov7670_set_fmt()
362 		return -ENOTSUP;  in ov7670_set_fmt()
365 	if (!memcmp(&data->fmt, fmt, sizeof(data->fmt))) {  in ov7670_set_fmt()
370 	memcpy(&data->fmt, fmt, sizeof(data->fmt));  in ov7670_set_fmt()
374 		if (fmts[i].width_min == fmt->width && fmts[i].height_min == fmt->height &&  in ov7670_set_fmt()
375 		    fmts[i].pixelformat == fmt->pixelformat) {  in ov7670_set_fmt()
392 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_COM7,  in ov7670_set_fmt()
393 						    resolution->com7);  in ov7670_set_fmt()
397 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_COM3,  in ov7670_set_fmt()
398 						    resolution->com3);  in ov7670_set_fmt()
402 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_COM14,  in ov7670_set_fmt()
403 						    resolution->com14);  in ov7670_set_fmt()
407 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_SCALING_XSC,  in ov7670_set_fmt()
408 						    resolution->scaling_xsc);  in ov7670_set_fmt()
412 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_SCALING_YSC,  in ov7670_set_fmt()
413 						    resolution->scaling_ysc);  in ov7670_set_fmt()
417 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_SCALING_DCWCTR,  in ov7670_set_fmt()
418 						    resolution->dcwctr);  in ov7670_set_fmt()
422 			ret = i2c_reg_write_byte_dt(&config->bus, OV7670_SCALING_PCLK_DIV,  in ov7670_set_fmt()
423 						    resolution->pclk_div);  in ov7670_set_fmt()
427 			return i2c_reg_write_byte_dt(&config->bus, OV7670_SCALING_PCLK_DELAY,  in ov7670_set_fmt()
428 						     resolution->pclk_delay);  in ov7670_set_fmt()
434 	return -ENOTSUP;  in ov7670_set_fmt()
440 	struct ov7670_data *data = dev->data;  in ov7670_get_fmt()
443 		return -EINVAL;  in ov7670_get_fmt()
445 	memcpy(fmt, &data->fmt, sizeof(data->fmt));  in ov7670_get_fmt()
451 	const struct ov7670_config *config = dev->config;  in ov7670_init()
457 	if (!i2c_is_ready_dt(&config->bus)) {  in ov7670_init()
459 		return -ENODEV;  in ov7670_init()
464 	if (config->pwdn.port != NULL) {  in ov7670_init()
465 		if (!gpio_is_ready_dt(&config->pwdn)) {  in ov7670_init()
466 			return -ENODEV;  in ov7670_init()
468 		ret = gpio_pin_configure_dt(&config->pwdn, GPIO_OUTPUT_INACTIVE);  in ov7670_init()
477 	if (config->reset.port != NULL) {  in ov7670_init()
478 		if (!gpio_is_ready_dt(&config->reset)) {  in ov7670_init()
479 			return -ENODEV;  in ov7670_init()
481 		ret = gpio_pin_configure_dt(&config->reset, GPIO_OUTPUT);  in ov7670_init()
487 		gpio_pin_set_dt(&config->reset, 0);  in ov7670_init()
489 		gpio_pin_set_dt(&config->reset, 1);  in ov7670_init()
496 	 * spec- which *should* be I2C compatible, but in practice does  in ov7670_init()
503 	ret = i2c_write_dt(&config->bus, &cmd, sizeof(cmd));  in ov7670_init()
508 	ret = i2c_read_dt(&config->bus, &pid, sizeof(pid));  in ov7670_init()
516 		return -ENODEV;  in ov7670_init()
520 	ret = i2c_reg_write_byte_dt(&config->bus, OV7670_COM7, 0x80);  in ov7670_init()
541 		ret = i2c_reg_write_byte_dt(&config->bus, reg->reg, reg->cmd);  in ov7670_init()