linux-imx

// SPDX-License-Identifier: GPL-2.0

/*

 * mt9t112 Camera Driver

 *

 * Copyright (C) 2018 Jacopo Mondi <jacopo+renesas@jmondi.org>

 *

 * Copyright (C) 2009 Renesas Solutions Corp.

 * Kuninori Morimoto <morimoto.kuninori@renesas.com>

 *

 * Based on ov772x driver, mt9m111 driver,

 *

 * Copyright (C) 2008 Kuninori Morimoto <morimoto.kuninori@renesas.com>

 * Copyright (C) 2008, Robert Jarzmik <robert.jarzmik@free.fr>

 * Copyright 2006-7 Jonathan Corbet <corbet@lwn.net>

 * Copyright (C) 2008 Magnus Damm

 * Copyright (C) 2008, Guennadi Liakhovetski <kernel@pengutronix.de>

 *

 * TODO: This driver lacks support for frame rate control due to missing

 *   register level documentation and suitable hardware for testing.

 *   v4l-utils compliance tools will report errors.

 */

​

#include <linux/clk.h>

#include <linux/delay.h>

#include <linux/gpio/consumer.h>

#include <linux/i2c.h>

#include <linux/init.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/v4l2-mediabus.h>

#include <linux/videodev2.h>

​

#include <media/i2c/mt9t112.h>

#include <media/v4l2-common.h>

#include <media/v4l2-image-sizes.h>

#include <media/v4l2-subdev.h>

​

/* you can check PLL/clock info */

/* #define EXT_CLOCK 24000000 */

​

/************************************************************************

 *          macro

 ***********************************************************************/

/*

 * frame size

 */

#define MAX_WIDTH   2048

#define MAX_HEIGHT  1536

​

/*

 * macro of read/write

 */

#define ECHECKER(ret, x)        \

    do {                \

        (ret) = (x);        \

        if ((ret) < 0)      \

            return (ret);   \

    } while (0)

​

#define mt9t112_reg_write(ret, client, a, b) \

    ECHECKER(ret, __mt9t112_reg_write(client, a, b))

#define mt9t112_mcu_write(ret, client, a, b) \

    ECHECKER(ret, __mt9t112_mcu_write(client, a, b))