[mirror_ubuntu-jammy-kernel.git] / drivers / media / i2c / adv7175.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *  adv7175 - adv7175a video encoder driver version 0.0.3
 *
 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
 *    - some corrections for Pinnacle Systems Inc. DC10plus card.
 *
 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
 *    - moved over to linux>=2.4.x i2c protocol (9/9/2002)
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/ioctl.h>
#include <linux/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>

MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");

#define   I2C_ADV7175        0xd4
#define   I2C_ADV7176        0x54


static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");

/* ----------------------------------------------------------------------- */

struct adv7175 {
	struct v4l2_subdev sd;
	v4l2_std_id norm;
	int input;
};

static inline struct adv7175 *to_adv7175(struct v4l2_subdev *sd)
{
	return container_of(sd, struct adv7175, sd);
}

static char *inputs[] = { "pass_through", "play_back", "color_bar" };

static u32 adv7175_codes[] = {
	MEDIA_BUS_FMT_UYVY8_2X8,
	MEDIA_BUS_FMT_UYVY8_1X16,
};

/* ----------------------------------------------------------------------- */

static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return i2c_smbus_write_byte_data(client, reg, value);
}

static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return i2c_smbus_read_byte_data(client, reg);
}

static int adv7175_write_block(struct v4l2_subdev *sd,
		     const u8 *data, unsigned int len)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	int ret = -1;
	u8 reg;

	/* the adv7175 has an autoincrement function, use it if
	 * the adapter understands raw I2C */
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
		/* do raw I2C, not smbus compatible */
		u8 block_data[32];
		int block_len;

		while (len >= 2) {
			block_len = 0;
			block_data[block_len++] = reg = data[0];
			do {
				block_data[block_len++] = data[1];
				reg++;
				len -= 2;
				data += 2;
			} while (len >= 2 && data[0] == reg && block_len < 32);
			ret = i2c_master_send(client, block_data, block_len);
			if (ret < 0)
				break;
		}
	} else {
		/* do some slow I2C emulation kind of thing */
		while (len >= 2) {
			reg = *data++;
			ret = adv7175_write(sd, reg, *data++);
			if (ret < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
{
	/* for some reason pass_through NTSC needs
	 * a different sub-carrier freq to remain stable. */
	if (pass_through)
		adv7175_write(sd, 0x02, 0x00);
	else
		adv7175_write(sd, 0x02, 0x55);

	adv7175_write(sd, 0x03, 0x55);
	adv7175_write(sd, 0x04, 0x55);
	adv7175_write(sd, 0x05, 0x25);
}

/* ----------------------------------------------------------------------- */
/* Output filter:  S-Video  Composite */

#define MR050       0x11	/* 0x09 */
#define MR060       0x14	/* 0x0c */

/* ----------------------------------------------------------------------- */

#define TR0MODE     0x46
#define TR0RST	    0x80

#define TR1CAPT	    0x80
#define TR1PLAY	    0x00

static const unsigned char init_common[] = {

	0x00, MR050,		/* MR0, PAL enabled */
	0x01, 0x00,		/* MR1 */
	0x02, 0x0c,		/* subc. freq. */
	0x03, 0x8c,		/* subc. freq. */
	0x04, 0x79,		/* subc. freq. */
	0x05, 0x26,		/* subc. freq. */
	0x06, 0x40,		/* subc. phase */

	0x07, TR0MODE,		/* TR0, 16bit */
	0x08, 0x21,		/*  */
	0x09, 0x00,		/*  */
	0x0a, 0x00,		/*  */
	0x0b, 0x00,		/*  */
	0x0c, TR1CAPT,		/* TR1 */
	0x0d, 0x4f,		/* MR2 */
	0x0e, 0x00,		/*  */
	0x0f, 0x00,		/*  */
	0x10, 0x00,		/*  */
	0x11, 0x00,		/*  */
};

static const unsigned char init_pal[] = {
	0x00, MR050,		/* MR0, PAL enabled */
	0x01, 0x00,		/* MR1 */
	0x02, 0x0c,		/* subc. freq. */
	0x03, 0x8c,		/* subc. freq. */
	0x04, 0x79,		/* subc. freq. */
	0x05, 0x26,		/* subc. freq. */
	0x06, 0x40,		/* subc. phase */
};

static const unsigned char init_ntsc[] = {
	0x00, MR060,		/* MR0, NTSC enabled */
	0x01, 0x00,		/* MR1 */
	0x02, 0x55,		/* subc. freq. */
	0x03, 0x55,		/* subc. freq. */
	0x04, 0x55,		/* subc. freq. */
	0x05, 0x25,		/* subc. freq. */
	0x06, 0x1a,		/* subc. phase */
};

static int adv7175_init(struct v4l2_subdev *sd, u32 val)
{
	/* This is just for testing!!! */
	adv7175_write_block(sd, init_common, sizeof(init_common));
	adv7175_write(sd, 0x07, TR0MODE | TR0RST);
	adv7175_write(sd, 0x07, TR0MODE);
	return 0;
}

static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct adv7175 *encoder = to_adv7175(sd);

	if (std & V4L2_STD_NTSC) {
		adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
		if (encoder->input == 0)
			adv7175_write(sd, 0x0d, 0x4f);	/* Enable genlock */
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
	} else if (std & V4L2_STD_PAL) {
		adv7175_write_block(sd, init_pal, sizeof(init_pal));
		if (encoder->input == 0)
			adv7175_write(sd, 0x0d, 0x4f);	/* Enable genlock */
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
	} else if (std & V4L2_STD_SECAM) {
		/* This is an attempt to convert
		 * SECAM->PAL (typically it does not work
		 * due to genlock: when decoder is in SECAM
		 * and encoder in in PAL the subcarrier can
		 * not be synchronized with horizontal
		 * quency) */
		adv7175_write_block(sd, init_pal, sizeof(init_pal));
		if (encoder->input == 0)
			adv7175_write(sd, 0x0d, 0x49);	/* Disable genlock */
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
	} else {
		v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
				(unsigned long long)std);
		return -EINVAL;
	}
	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
	encoder->norm = std;
	return 0;
}

static int adv7175_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct adv7175 *encoder = to_adv7175(sd);

	/* RJ: input = 0: input is from decoder
	   input = 1: input is from ZR36060
	   input = 2: color bar */

	switch (input) {
	case 0:
		adv7175_write(sd, 0x01, 0x00);

		if (encoder->norm & V4L2_STD_NTSC)
			set_subcarrier_freq(sd, 1);

		adv7175_write(sd, 0x0c, TR1CAPT);	/* TR1 */
		if (encoder->norm & V4L2_STD_SECAM)
			adv7175_write(sd, 0x0d, 0x49);	/* Disable genlock */
		else
			adv7175_write(sd, 0x0d, 0x4f);	/* Enable genlock */
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
		/*udelay(10);*/
		break;

	case 1:
		adv7175_write(sd, 0x01, 0x00);

		if (encoder->norm & V4L2_STD_NTSC)
			set_subcarrier_freq(sd, 0);

		adv7175_write(sd, 0x0c, TR1PLAY);	/* TR1 */
		adv7175_write(sd, 0x0d, 0x49);
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
		/* udelay(10); */
		break;

	case 2:
		adv7175_write(sd, 0x01, 0x80);

		if (encoder->norm & V4L2_STD_NTSC)
			set_subcarrier_freq(sd, 0);

		adv7175_write(sd, 0x0d, 0x49);
		adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		adv7175_write(sd, 0x07, TR0MODE);
		/* udelay(10); */
		break;

	default:
		v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
		return -EINVAL;
	}
	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
	encoder->input = input;
	return 0;
}

static int adv7175_enum_mbus_code(struct v4l2_subdev *sd,
		struct v4l2_subdev_state *sd_state,
		struct v4l2_subdev_mbus_code_enum *code)
{
	if (code->pad || code->index >= ARRAY_SIZE(adv7175_codes))
		return -EINVAL;

	code->code = adv7175_codes[code->index];
	return 0;
}

static int adv7175_get_fmt(struct v4l2_subdev *sd,
		struct v4l2_subdev_state *sd_state,
		struct v4l2_subdev_format *format)
{
	struct v4l2_mbus_framefmt *mf = &format->format;
	u8 val = adv7175_read(sd, 0x7);

	if (format->pad)
		return -EINVAL;

	if ((val & 0x40) == (1 << 6))
		mf->code = MEDIA_BUS_FMT_UYVY8_1X16;
	else
		mf->code = MEDIA_BUS_FMT_UYVY8_2X8;

	mf->colorspace  = V4L2_COLORSPACE_SMPTE170M;
	mf->width       = 0;
	mf->height      = 0;
	mf->field       = V4L2_FIELD_ANY;

	return 0;
}

static int adv7175_set_fmt(struct v4l2_subdev *sd,
		struct v4l2_subdev_state *sd_state,
		struct v4l2_subdev_format *format)
{
	struct v4l2_mbus_framefmt *mf = &format->format;
	u8 val = adv7175_read(sd, 0x7);
	int ret = 0;

	if (format->pad)
		return -EINVAL;

	switch (mf->code) {
	case MEDIA_BUS_FMT_UYVY8_2X8:
		val &= ~0x40;
		break;

	case MEDIA_BUS_FMT_UYVY8_1X16:
		val |= 0x40;
		break;

	default:
		v4l2_dbg(1, debug, sd,
			"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
		return -EINVAL;
	}

	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
		ret = adv7175_write(sd, 0x7, val);

	return ret;
}

static int adv7175_s_power(struct v4l2_subdev *sd, int on)
{
	if (on)
		adv7175_write(sd, 0x01, 0x00);
	else
		adv7175_write(sd, 0x01, 0x78);

	return 0;
}

/* ----------------------------------------------------------------------- */

static const struct v4l2_subdev_core_ops adv7175_core_ops = {
	.init = adv7175_init,
	.s_power = adv7175_s_power,
};

static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	.s_std_output = adv7175_s_std_output,
	.s_routing = adv7175_s_routing,
};

static const struct v4l2_subdev_pad_ops adv7175_pad_ops = {
	.enum_mbus_code = adv7175_enum_mbus_code,
	.get_fmt = adv7175_get_fmt,
	.set_fmt = adv7175_set_fmt,
};

static const struct v4l2_subdev_ops adv7175_ops = {
	.core = &adv7175_core_ops,
	.video = &adv7175_video_ops,
	.pad = &adv7175_pad_ops,
};

/* ----------------------------------------------------------------------- */

static int adv7175_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	int i;
	struct adv7175 *encoder;
	struct v4l2_subdev *sd;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -ENODEV;

	v4l_info(client, "chip found @ 0x%x (%s)\n",
			client->addr << 1, client->adapter->name);

	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
	if (encoder == NULL)
		return -ENOMEM;
	sd = &encoder->sd;
	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
	encoder->norm = V4L2_STD_NTSC;
	encoder->input = 0;

	i = adv7175_write_block(sd, init_common, sizeof(init_common));
	if (i >= 0) {
		i = adv7175_write(sd, 0x07, TR0MODE | TR0RST);
		i = adv7175_write(sd, 0x07, TR0MODE);
		i = adv7175_read(sd, 0x12);
		v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
	}
	if (i < 0)
		v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
	return 0;
}

static int adv7175_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);

	v4l2_device_unregister_subdev(sd);
	return 0;
}

/* ----------------------------------------------------------------------- */

static const struct i2c_device_id adv7175_id[] = {
	{ "adv7175", 0 },
	{ "adv7176", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, adv7175_id);

static struct i2c_driver adv7175_driver = {
	.driver = {
		.name	= "adv7175",
	},
	.probe		= adv7175_probe,
	.remove		= adv7175_remove,
	.id_table	= adv7175_id,
};

module_i2c_driver(adv7175_driver);
Commit	Line	Data
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
d56410e0	2	/*
1da177e4 LT	3	* adv7175 - adv7175a video encoder driver version 0.0.3
	4	*
	5	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	6	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	7	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	8	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	9	*
	10	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	11	* - moved over to linux>=2.4.x i2c protocol (9/9/2002)
1da177e4 LT	12	*/
	13
	14	#include <linux/module.h>
18f3fa1e	15	#include <linux/types.h>
5a0e3ad6	16	#include <linux/slab.h>
bba0d982	17	#include <linux/ioctl.h>
7c0f6ba6	18	#include <linux/uaccess.h>
bba0d982	19	#include <linux/i2c.h>
35631dcc HV	20	#include <linux/videodev2.h>
35631dcc HV	21	#include <media/v4l2-device.h>
1da177e4 LT	22
	23	MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
	24	MODULE_AUTHOR("Dave Perks");
	25	MODULE_LICENSE("GPL");
	26
35631dcc HV	27	#define I2C_ADV7175 0xd4
	28	#define I2C_ADV7176 0x54
	29
35631dcc	30
ff699e6b	31	static int debug;
1da177e4 LT	32	module_param(debug, int, 0);
	33	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	34
1da177e4 LT	35	/* ----------------------------------------------------------------------- */
	36
	37	struct adv7175 {
35631dcc	38	struct v4l2_subdev sd;
107063c6	39	v4l2_std_id norm;
1da177e4	40	int input;
1da177e4 LT	41	};
1da177e4 LT	42
35631dcc HV	43	static inline struct adv7175 to_adv7175(struct v4l2_subdev sd)
	44	{
	45	return container_of(sd, struct adv7175, sd);
	46	}
1da177e4	47
1da177e4	48	static char *inputs[] = { "pass_through", "play_back", "color_bar" };
1da177e4	49
f5fe58fd BB	50	static u32 adv7175_codes[] = {
	51	MEDIA_BUS_FMT_UYVY8_2X8,
	52	MEDIA_BUS_FMT_UYVY8_1X16,
f1a84c9b CG	53	};
f1a84c9b CG	54
1da177e4 LT	55	/* ----------------------------------------------------------------------- */
1da177e4 LT	56
35631dcc	57	static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	58	{
35631dcc HV	59	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	60
1da177e4 LT	61	return i2c_smbus_write_byte_data(client, reg, value);
	62	}
	63
35631dcc	64	static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	65	{
35631dcc HV	66	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	67
1da177e4 LT	68	return i2c_smbus_read_byte_data(client, reg);
	69	}
	70
35631dcc	71	static int adv7175_write_block(struct v4l2_subdev *sd,
bba0d982	72	const u8 *data, unsigned int len)
1da177e4	73	{
35631dcc	74	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4 LT	75	int ret = -1;
	76	u8 reg;
	77
	78	/* the adv7175 has an autoincrement function, use it if
	79	* the adapter understands raw I2C */
	80	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	81	/* do raw I2C, not smbus compatible */
1da177e4	82	u8 block_data[32];
9aa45e34	83	int block_len;
1da177e4	84
1da177e4	85	while (len >= 2) {
9aa45e34 JD	86	block_len = 0;
9aa45e34 JD	87	block_data[block_len++] = reg = data[0];
1da177e4	88	do {
9aa45e34	89	block_data[block_len++] = data[1];
2467a670	90	reg++;
1da177e4 LT	91	len -= 2;
1da177e4 LT	92	data += 2;
bba0d982 HV	93	} while (len >= 2 && data[0] == reg && block_len < 32);
	94	ret = i2c_master_send(client, block_data, block_len);
	95	if (ret < 0)
1da177e4 LT	96	break;
	97	}
	98	} else {
	99	/* do some slow I2C emulation kind of thing */
	100	while (len >= 2) {
	101	reg = *data++;
35631dcc	102	ret = adv7175_write(sd, reg, *data++);
bba0d982	103	if (ret < 0)
1da177e4 LT	104	break;
	105	len -= 2;
	106	}
	107	}
	108
	109	return ret;
	110	}
	111
35631dcc	112	static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
1da177e4 LT	113	{
	114	/* for some reason pass_through NTSC needs
	115	* a different sub-carrier freq to remain stable. */
bba0d982	116	if (pass_through)
35631dcc	117	adv7175_write(sd, 0x02, 0x00);
1da177e4	118	else
35631dcc	119	adv7175_write(sd, 0x02, 0x55);
1da177e4	120
35631dcc HV	121	adv7175_write(sd, 0x03, 0x55);
	122	adv7175_write(sd, 0x04, 0x55);
	123	adv7175_write(sd, 0x05, 0x25);
1da177e4 LT	124	}
1da177e4 LT	125
1da177e4	126	/* ----------------------------------------------------------------------- */
bba0d982	127	/* Output filter: S-Video Composite */
1da177e4	128
bba0d982 HV	129	#define MR050 0x11 /* 0x09 */
bba0d982 HV	130	#define MR060 0x14 /* 0x0c */
1da177e4	131
bba0d982	132	/* ----------------------------------------------------------------------- */
1da177e4 LT	133
	134	#define TR0MODE 0x46
	135	#define TR0RST 0x80
	136
	137	#define TR1CAPT 0x80
	138	#define TR1PLAY 0x00
	139
	140	static const unsigned char init_common[] = {
	141
	142	0x00, MR050, /* MR0, PAL enabled */
	143	0x01, 0x00, /* MR1 */
	144	0x02, 0x0c, /* subc. freq. */
	145	0x03, 0x8c, /* subc. freq. */
	146	0x04, 0x79, /* subc. freq. */
	147	0x05, 0x26, /* subc. freq. */
	148	0x06, 0x40, /* subc. phase */
	149
	150	0x07, TR0MODE, /* TR0, 16bit */
	151	0x08, 0x21, /* */
	152	0x09, 0x00, /* */
	153	0x0a, 0x00, /* */
	154	0x0b, 0x00, /* */
	155	0x0c, TR1CAPT, /* TR1 */
	156	0x0d, 0x4f, /* MR2 */
	157	0x0e, 0x00, /* */
	158	0x0f, 0x00, /* */
	159	0x10, 0x00, /* */
	160	0x11, 0x00, /* */
	161	};
	162
	163	static const unsigned char init_pal[] = {
	164	0x00, MR050, /* MR0, PAL enabled */
	165	0x01, 0x00, /* MR1 */
	166	0x02, 0x0c, /* subc. freq. */
	167	0x03, 0x8c, /* subc. freq. */
	168	0x04, 0x79, /* subc. freq. */
	169	0x05, 0x26, /* subc. freq. */
	170	0x06, 0x40, /* subc. phase */
	171	};
	172
	173	static const unsigned char init_ntsc[] = {
	174	0x00, MR060, /* MR0, NTSC enabled */
	175	0x01, 0x00, /* MR1 */
	176	0x02, 0x55, /* subc. freq. */
	177	0x03, 0x55, /* subc. freq. */
	178	0x04, 0x55, /* subc. freq. */
	179	0x05, 0x25, /* subc. freq. */
	180	0x06, 0x1a, /* subc. phase */
	181	};
	182
35631dcc HV	183	static int adv7175_init(struct v4l2_subdev *sd, u32 val)
	184	{
	185	/* This is just for testing!!! */
	186	adv7175_write_block(sd, init_common, sizeof(init_common));
	187	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	188	adv7175_write(sd, 0x07, TR0MODE);
	189	return 0;
	190	}
	191
	192	static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	193	{
35631dcc HV	194	struct adv7175 *encoder = to_adv7175(sd);
	195
	196	if (std & V4L2_STD_NTSC) {
	197	adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
	198	if (encoder->input == 0)
	199	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	200	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	201	adv7175_write(sd, 0x07, TR0MODE);
	202	} else if (std & V4L2_STD_PAL) {
	203	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	204	if (encoder->input == 0)
	205	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	206	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	207	adv7175_write(sd, 0x07, TR0MODE);
	208	} else if (std & V4L2_STD_SECAM) {
	209	/* This is an attempt to convert
	210	* SECAM->PAL (typically it does not work
	211	* due to genlock: when decoder is in SECAM
	212	* and encoder in in PAL the subcarrier can
f8a7647d	213	* not be synchronized with horizontal
35631dcc HV	214	* quency) */
	215	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	216	if (encoder->input == 0)
	217	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	218	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	219	adv7175_write(sd, 0x07, TR0MODE);
	220	} else {
cc5cef8e HV	221	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	222	(unsigned long long)std);
35631dcc HV	223	return -EINVAL;
35631dcc HV	224	}
cc5cef8e	225	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
35631dcc HV	226	encoder->norm = std;
	227	return 0;
	228	}
	229
5325b427 HV	230	static int adv7175_s_routing(struct v4l2_subdev *sd,
5325b427 HV	231	u32 input, u32 output, u32 config)
35631dcc HV	232	{
	233	struct adv7175 *encoder = to_adv7175(sd);
	234
5325b427 HV	235	/* RJ: input = 0: input is from decoder
	236	input = 1: input is from ZR36060
	237	input = 2: color bar */
35631dcc	238
5325b427	239	switch (input) {
35631dcc HV	240	case 0:
	241	adv7175_write(sd, 0x01, 0x00);
	242
	243	if (encoder->norm & V4L2_STD_NTSC)
	244	set_subcarrier_freq(sd, 1);
	245
	246	adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
	247	if (encoder->norm & V4L2_STD_SECAM)
	248	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	249	else
	250	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	251	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	252	adv7175_write(sd, 0x07, TR0MODE);
	253	/udelay(10);/
d56410e0	254	break;
1da177e4	255
35631dcc HV	256	case 1:
	257	adv7175_write(sd, 0x01, 0x00);
	258
	259	if (encoder->norm & V4L2_STD_NTSC)
	260	set_subcarrier_freq(sd, 0);
	261
	262	adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
	263	adv7175_write(sd, 0x0d, 0x49);
	264	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	265	adv7175_write(sd, 0x07, TR0MODE);
	266	/* udelay(10); */
1da177e4 LT	267	break;
1da177e4 LT	268
35631dcc HV	269	case 2:
	270	adv7175_write(sd, 0x01, 0x80);
	271
	272	if (encoder->norm & V4L2_STD_NTSC)
	273	set_subcarrier_freq(sd, 0);
	274
	275	adv7175_write(sd, 0x0d, 0x49);
	276	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	277	adv7175_write(sd, 0x07, TR0MODE);
	278	/* udelay(10); */
1da177e4 LT	279	break;
1da177e4 LT	280
1da177e4	281	default:
5325b427	282	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	283	return -EINVAL;
1da177e4 LT	284	}
5325b427 HV	285	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	286	encoder->input = input;
1da177e4 LT	287	return 0;
	288	}
	289
ebcff5fc	290	static int adv7175_enum_mbus_code(struct v4l2_subdev *sd,
0d346d2a	291	struct v4l2_subdev_state *sd_state,
ebcff5fc	292	struct v4l2_subdev_mbus_code_enum *code)
f1a84c9b	293	{
ebcff5fc	294	if (code->pad \|\| code->index >= ARRAY_SIZE(adv7175_codes))
f1a84c9b CG	295	return -EINVAL;
f1a84c9b CG	296
ebcff5fc	297	code->code = adv7175_codes[code->index];
f1a84c9b CG	298	return 0;
	299	}
	300
da298c6d	301	static int adv7175_get_fmt(struct v4l2_subdev *sd,
0d346d2a	302	struct v4l2_subdev_state *sd_state,
da298c6d	303	struct v4l2_subdev_format *format)
f1a84c9b	304	{
da298c6d	305	struct v4l2_mbus_framefmt *mf = &format->format;
f1a84c9b CG	306	u8 val = adv7175_read(sd, 0x7);
f1a84c9b CG	307
da298c6d HV	308	if (format->pad)
	309	return -EINVAL;
	310
f1a84c9b	311	if ((val & 0x40) == (1 << 6))
f5fe58fd	312	mf->code = MEDIA_BUS_FMT_UYVY8_1X16;
f1a84c9b	313	else
f5fe58fd	314	mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
f1a84c9b CG	315
	316	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
	317	mf->width = 0;
	318	mf->height = 0;
	319	mf->field = V4L2_FIELD_ANY;
	320
	321	return 0;
	322	}
	323
6e80c473	324	static int adv7175_set_fmt(struct v4l2_subdev *sd,
0d346d2a	325	struct v4l2_subdev_state *sd_state,
6e80c473	326	struct v4l2_subdev_format *format)
f1a84c9b	327	{
6e80c473	328	struct v4l2_mbus_framefmt *mf = &format->format;
f1a84c9b	329	u8 val = adv7175_read(sd, 0x7);
6e80c473 HV	330	int ret = 0;
	331
	332	if (format->pad)
	333	return -EINVAL;
f1a84c9b CG	334
f1a84c9b CG	335	switch (mf->code) {
f5fe58fd	336	case MEDIA_BUS_FMT_UYVY8_2X8:
f1a84c9b CG	337	val &= ~0x40;
	338	break;
	339
f5fe58fd	340	case MEDIA_BUS_FMT_UYVY8_1X16:
f1a84c9b CG	341	val \|= 0x40;
	342	break;
	343
	344	default:
	345	v4l2_dbg(1, debug, sd,
	346	"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
	347	return -EINVAL;
	348	}
	349
6e80c473 HV	350	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
6e80c473 HV	351	ret = adv7175_write(sd, 0x7, val);
f1a84c9b CG	352
	353	return ret;
	354	}
	355
b7eccc46 CG	356	static int adv7175_s_power(struct v4l2_subdev *sd, int on)
	357	{
	358	if (on)
	359	adv7175_write(sd, 0x01, 0x00);
	360	else
	361	adv7175_write(sd, 0x01, 0x78);
	362
	363	return 0;
	364	}
	365
1da177e4 LT	366	/* ----------------------------------------------------------------------- */
1da177e4 LT	367
35631dcc	368	static const struct v4l2_subdev_core_ops adv7175_core_ops = {
35631dcc	369	.init = adv7175_init,
b7eccc46	370	.s_power = adv7175_s_power,
1da177e4	371	};
1da177e4	372
35631dcc HV	373	static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	374	.s_std_output = adv7175_s_std_output,
	375	.s_routing = adv7175_s_routing,
ebcff5fc HV	376	};
	377
	378	static const struct v4l2_subdev_pad_ops adv7175_pad_ops = {
	379	.enum_mbus_code = adv7175_enum_mbus_code,
da298c6d	380	.get_fmt = adv7175_get_fmt,
6e80c473	381	.set_fmt = adv7175_set_fmt,
35631dcc HV	382	};
	383
	384	static const struct v4l2_subdev_ops adv7175_ops = {
	385	.core = &adv7175_core_ops,
	386	.video = &adv7175_video_ops,
ebcff5fc	387	.pad = &adv7175_pad_ops,
35631dcc HV	388	};
	389
	390	/* ----------------------------------------------------------------------- */
1da177e4	391
bba0d982 HV	392	static int adv7175_probe(struct i2c_client *client,
bba0d982 HV	393	const struct i2c_device_id *id)
1da177e4 LT	394	{
1da177e4 LT	395	int i;
1da177e4	396	struct adv7175 *encoder;
35631dcc	397	struct v4l2_subdev *sd;
1da177e4 LT	398
1da177e4 LT	399	/* Check if the adapter supports the needed features */
bba0d982 HV	400	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
bba0d982 HV	401	return -ENODEV;
1da177e4	402
bba0d982 HV	403	v4l_info(client, "chip found @ 0x%x (%s)\n",
bba0d982 HV	404	client->addr << 1, client->adapter->name);
1da177e4	405
c02b211d	406	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
bba0d982	407	if (encoder == NULL)
1da177e4	408	return -ENOMEM;
35631dcc HV	409	sd = &encoder->sd;
35631dcc HV	410	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
107063c6	411	encoder->norm = V4L2_STD_NTSC;
1da177e4	412	encoder->input = 0;
1da177e4	413
35631dcc	414	i = adv7175_write_block(sd, init_common, sizeof(init_common));
1da177e4	415	if (i >= 0) {
35631dcc HV	416	i = adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	417	i = adv7175_write(sd, 0x07, TR0MODE);
	418	i = adv7175_read(sd, 0x12);
	419	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	420	}
bba0d982	421	if (i < 0)
35631dcc	422	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	423	return 0;
	424	}
	425
bba0d982	426	static int adv7175_remove(struct i2c_client *client)
1da177e4	427	{
35631dcc HV	428	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	429
	430	v4l2_device_unregister_subdev(sd);
1da177e4 LT	431	return 0;
	432	}
	433
	434	/* ----------------------------------------------------------------------- */
	435
bba0d982 HV	436	static const struct i2c_device_id adv7175_id[] = {
	437	{ "adv7175", 0 },
	438	{ "adv7176", 0 },
	439	{ }
	440	};
	441	MODULE_DEVICE_TABLE(i2c, adv7175_id);
1da177e4	442
dc71443f HV	443	static struct i2c_driver adv7175_driver = {
dc71443f HV	444	.driver = {
dc71443f HV	445	.name = "adv7175",
	446	},
	447	.probe = adv7175_probe,
	448	.remove = adv7175_remove,
	449	.id_table = adv7175_id,
1da177e4	450	};
dc71443f	451
c6e8d86f	452	module_i2c_driver(adv7175_driver);