[deliverable/linux.git] / drivers / media / i2c / adv7175.c

/*
 *  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)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/ioctl.h>
#include <asm/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 syncronized 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_pad_config *cfg,
		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_pad_config *cfg,
		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_pad_config *cfg,
		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
d56410e0	1	/*
1da177e4 LT	2	* adv7175 - adv7175a video encoder driver version 0.0.3
	3	*
	4	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	5	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	6	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	7	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	8	*
	9	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	10	* - moved over to linux>=2.4.x i2c protocol (9/9/2002)
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	25	*/
	26
	27	#include <linux/module.h>
18f3fa1e	28	#include <linux/types.h>
5a0e3ad6	29	#include <linux/slab.h>
bba0d982	30	#include <linux/ioctl.h>
18f3fa1e	31	#include <asm/uaccess.h>
bba0d982	32	#include <linux/i2c.h>
35631dcc HV	33	#include <linux/videodev2.h>
35631dcc HV	34	#include <media/v4l2-device.h>
1da177e4 LT	35
	36	MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
	37	MODULE_AUTHOR("Dave Perks");
	38	MODULE_LICENSE("GPL");
	39
35631dcc HV	40	#define I2C_ADV7175 0xd4
	41	#define I2C_ADV7176 0x54
	42
35631dcc	43
ff699e6b	44	static int debug;
1da177e4 LT	45	module_param(debug, int, 0);
	46	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	47
1da177e4 LT	48	/* ----------------------------------------------------------------------- */
	49
	50	struct adv7175 {
35631dcc	51	struct v4l2_subdev sd;
107063c6	52	v4l2_std_id norm;
1da177e4	53	int input;
1da177e4 LT	54	};
1da177e4 LT	55
35631dcc HV	56	static inline struct adv7175 to_adv7175(struct v4l2_subdev sd)
	57	{
	58	return container_of(sd, struct adv7175, sd);
	59	}
1da177e4	60
1da177e4	61	static char *inputs[] = { "pass_through", "play_back", "color_bar" };
1da177e4	62
f5fe58fd BB	63	static u32 adv7175_codes[] = {
	64	MEDIA_BUS_FMT_UYVY8_2X8,
	65	MEDIA_BUS_FMT_UYVY8_1X16,
f1a84c9b CG	66	};
f1a84c9b CG	67
1da177e4 LT	68	/* ----------------------------------------------------------------------- */
1da177e4 LT	69
35631dcc	70	static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	71	{
35631dcc HV	72	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	73
1da177e4 LT	74	return i2c_smbus_write_byte_data(client, reg, value);
	75	}
	76
35631dcc	77	static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	78	{
35631dcc HV	79	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	80
1da177e4 LT	81	return i2c_smbus_read_byte_data(client, reg);
	82	}
	83
35631dcc	84	static int adv7175_write_block(struct v4l2_subdev *sd,
bba0d982	85	const u8 *data, unsigned int len)
1da177e4	86	{
35631dcc	87	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4 LT	88	int ret = -1;
	89	u8 reg;
	90
	91	/* the adv7175 has an autoincrement function, use it if
	92	* the adapter understands raw I2C */
	93	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	94	/* do raw I2C, not smbus compatible */
1da177e4	95	u8 block_data[32];
9aa45e34	96	int block_len;
1da177e4	97
1da177e4	98	while (len >= 2) {
9aa45e34 JD	99	block_len = 0;
9aa45e34 JD	100	block_data[block_len++] = reg = data[0];
1da177e4	101	do {
9aa45e34	102	block_data[block_len++] = data[1];
2467a670	103	reg++;
1da177e4 LT	104	len -= 2;
1da177e4 LT	105	data += 2;
bba0d982 HV	106	} while (len >= 2 && data[0] == reg && block_len < 32);
	107	ret = i2c_master_send(client, block_data, block_len);
	108	if (ret < 0)
1da177e4 LT	109	break;
	110	}
	111	} else {
	112	/* do some slow I2C emulation kind of thing */
	113	while (len >= 2) {
	114	reg = *data++;
35631dcc	115	ret = adv7175_write(sd, reg, *data++);
bba0d982	116	if (ret < 0)
1da177e4 LT	117	break;
	118	len -= 2;
	119	}
	120	}
	121
	122	return ret;
	123	}
	124
35631dcc	125	static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
1da177e4 LT	126	{
	127	/* for some reason pass_through NTSC needs
	128	* a different sub-carrier freq to remain stable. */
bba0d982	129	if (pass_through)
35631dcc	130	adv7175_write(sd, 0x02, 0x00);
1da177e4	131	else
35631dcc	132	adv7175_write(sd, 0x02, 0x55);
1da177e4	133
35631dcc HV	134	adv7175_write(sd, 0x03, 0x55);
	135	adv7175_write(sd, 0x04, 0x55);
	136	adv7175_write(sd, 0x05, 0x25);
1da177e4 LT	137	}
1da177e4 LT	138
1da177e4	139	/* ----------------------------------------------------------------------- */
bba0d982	140	/* Output filter: S-Video Composite */
1da177e4	141
bba0d982 HV	142	#define MR050 0x11 /* 0x09 */
bba0d982 HV	143	#define MR060 0x14 /* 0x0c */
1da177e4	144
bba0d982	145	/* ----------------------------------------------------------------------- */
1da177e4 LT	146
	147	#define TR0MODE 0x46
	148	#define TR0RST 0x80
	149
	150	#define TR1CAPT 0x80
	151	#define TR1PLAY 0x00
	152
	153	static const unsigned char init_common[] = {
	154
	155	0x00, MR050, /* MR0, PAL enabled */
	156	0x01, 0x00, /* MR1 */
	157	0x02, 0x0c, /* subc. freq. */
	158	0x03, 0x8c, /* subc. freq. */
	159	0x04, 0x79, /* subc. freq. */
	160	0x05, 0x26, /* subc. freq. */
	161	0x06, 0x40, /* subc. phase */
	162
	163	0x07, TR0MODE, /* TR0, 16bit */
	164	0x08, 0x21, /* */
	165	0x09, 0x00, /* */
	166	0x0a, 0x00, /* */
	167	0x0b, 0x00, /* */
	168	0x0c, TR1CAPT, /* TR1 */
	169	0x0d, 0x4f, /* MR2 */
	170	0x0e, 0x00, /* */
	171	0x0f, 0x00, /* */
	172	0x10, 0x00, /* */
	173	0x11, 0x00, /* */
	174	};
	175
	176	static const unsigned char init_pal[] = {
	177	0x00, MR050, /* MR0, PAL enabled */
	178	0x01, 0x00, /* MR1 */
	179	0x02, 0x0c, /* subc. freq. */
	180	0x03, 0x8c, /* subc. freq. */
	181	0x04, 0x79, /* subc. freq. */
	182	0x05, 0x26, /* subc. freq. */
	183	0x06, 0x40, /* subc. phase */
	184	};
	185
	186	static const unsigned char init_ntsc[] = {
	187	0x00, MR060, /* MR0, NTSC enabled */
	188	0x01, 0x00, /* MR1 */
	189	0x02, 0x55, /* subc. freq. */
	190	0x03, 0x55, /* subc. freq. */
	191	0x04, 0x55, /* subc. freq. */
	192	0x05, 0x25, /* subc. freq. */
	193	0x06, 0x1a, /* subc. phase */
	194	};
	195
35631dcc HV	196	static int adv7175_init(struct v4l2_subdev *sd, u32 val)
	197	{
	198	/* This is just for testing!!! */
	199	adv7175_write_block(sd, init_common, sizeof(init_common));
	200	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	201	adv7175_write(sd, 0x07, TR0MODE);
	202	return 0;
	203	}
	204
	205	static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	206	{
35631dcc HV	207	struct adv7175 *encoder = to_adv7175(sd);
	208
	209	if (std & V4L2_STD_NTSC) {
	210	adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
	211	if (encoder->input == 0)
	212	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	213	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	214	adv7175_write(sd, 0x07, TR0MODE);
	215	} else if (std & V4L2_STD_PAL) {
	216	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	217	if (encoder->input == 0)
	218	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	219	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	220	adv7175_write(sd, 0x07, TR0MODE);
	221	} else if (std & V4L2_STD_SECAM) {
	222	/* This is an attempt to convert
	223	* SECAM->PAL (typically it does not work
	224	* due to genlock: when decoder is in SECAM
	225	* and encoder in in PAL the subcarrier can
	226	* not be syncronized with horizontal
	227	* quency) */
	228	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	229	if (encoder->input == 0)
	230	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	231	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	232	adv7175_write(sd, 0x07, TR0MODE);
	233	} else {
cc5cef8e HV	234	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	235	(unsigned long long)std);
35631dcc HV	236	return -EINVAL;
35631dcc HV	237	}
cc5cef8e	238	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
35631dcc HV	239	encoder->norm = std;
	240	return 0;
	241	}
	242
5325b427 HV	243	static int adv7175_s_routing(struct v4l2_subdev *sd,
5325b427 HV	244	u32 input, u32 output, u32 config)
35631dcc HV	245	{
	246	struct adv7175 *encoder = to_adv7175(sd);
	247
5325b427 HV	248	/* RJ: input = 0: input is from decoder
	249	input = 1: input is from ZR36060
	250	input = 2: color bar */
35631dcc	251
5325b427	252	switch (input) {
35631dcc HV	253	case 0:
	254	adv7175_write(sd, 0x01, 0x00);
	255
	256	if (encoder->norm & V4L2_STD_NTSC)
	257	set_subcarrier_freq(sd, 1);
	258
	259	adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
	260	if (encoder->norm & V4L2_STD_SECAM)
	261	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	262	else
	263	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	264	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	265	adv7175_write(sd, 0x07, TR0MODE);
	266	/udelay(10);/
d56410e0	267	break;
1da177e4	268
35631dcc HV	269	case 1:
	270	adv7175_write(sd, 0x01, 0x00);
	271
	272	if (encoder->norm & V4L2_STD_NTSC)
	273	set_subcarrier_freq(sd, 0);
	274
	275	adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
	276	adv7175_write(sd, 0x0d, 0x49);
	277	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	278	adv7175_write(sd, 0x07, TR0MODE);
	279	/* udelay(10); */
1da177e4 LT	280	break;
1da177e4 LT	281
35631dcc HV	282	case 2:
	283	adv7175_write(sd, 0x01, 0x80);
	284
	285	if (encoder->norm & V4L2_STD_NTSC)
	286	set_subcarrier_freq(sd, 0);
	287
	288	adv7175_write(sd, 0x0d, 0x49);
	289	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	290	adv7175_write(sd, 0x07, TR0MODE);
	291	/* udelay(10); */
1da177e4 LT	292	break;
1da177e4 LT	293
1da177e4	294	default:
5325b427	295	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	296	return -EINVAL;
1da177e4 LT	297	}
5325b427 HV	298	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	299	encoder->input = input;
1da177e4 LT	300	return 0;
	301	}
	302
ebcff5fc HV	303	static int adv7175_enum_mbus_code(struct v4l2_subdev *sd,
	304	struct v4l2_subdev_pad_config *cfg,
	305	struct v4l2_subdev_mbus_code_enum *code)
f1a84c9b	306	{
ebcff5fc	307	if (code->pad \|\| code->index >= ARRAY_SIZE(adv7175_codes))
f1a84c9b CG	308	return -EINVAL;
f1a84c9b CG	309
ebcff5fc	310	code->code = adv7175_codes[code->index];
f1a84c9b CG	311	return 0;
	312	}
	313
da298c6d HV	314	static int adv7175_get_fmt(struct v4l2_subdev *sd,
	315	struct v4l2_subdev_pad_config *cfg,
	316	struct v4l2_subdev_format *format)
f1a84c9b	317	{
da298c6d	318	struct v4l2_mbus_framefmt *mf = &format->format;
f1a84c9b CG	319	u8 val = adv7175_read(sd, 0x7);
f1a84c9b CG	320
da298c6d HV	321	if (format->pad)
	322	return -EINVAL;
	323
f1a84c9b	324	if ((val & 0x40) == (1 << 6))
f5fe58fd	325	mf->code = MEDIA_BUS_FMT_UYVY8_1X16;
f1a84c9b	326	else
f5fe58fd	327	mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
f1a84c9b CG	328
	329	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
	330	mf->width = 0;
	331	mf->height = 0;
	332	mf->field = V4L2_FIELD_ANY;
	333
	334	return 0;
	335	}
	336
6e80c473 HV	337	static int adv7175_set_fmt(struct v4l2_subdev *sd,
	338	struct v4l2_subdev_pad_config *cfg,
	339	struct v4l2_subdev_format *format)
f1a84c9b	340	{
6e80c473	341	struct v4l2_mbus_framefmt *mf = &format->format;
f1a84c9b	342	u8 val = adv7175_read(sd, 0x7);
6e80c473 HV	343	int ret = 0;
	344
	345	if (format->pad)
	346	return -EINVAL;
f1a84c9b CG	347
f1a84c9b CG	348	switch (mf->code) {
f5fe58fd	349	case MEDIA_BUS_FMT_UYVY8_2X8:
f1a84c9b CG	350	val &= ~0x40;
	351	break;
	352
f5fe58fd	353	case MEDIA_BUS_FMT_UYVY8_1X16:
f1a84c9b CG	354	val \|= 0x40;
	355	break;
	356
	357	default:
	358	v4l2_dbg(1, debug, sd,
	359	"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
	360	return -EINVAL;
	361	}
	362
6e80c473 HV	363	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
6e80c473 HV	364	ret = adv7175_write(sd, 0x7, val);
f1a84c9b CG	365
	366	return ret;
	367	}
	368
b7eccc46 CG	369	static int adv7175_s_power(struct v4l2_subdev *sd, int on)
	370	{
	371	if (on)
	372	adv7175_write(sd, 0x01, 0x00);
	373	else
	374	adv7175_write(sd, 0x01, 0x78);
	375
	376	return 0;
	377	}
	378
1da177e4 LT	379	/* ----------------------------------------------------------------------- */
1da177e4 LT	380
35631dcc	381	static const struct v4l2_subdev_core_ops adv7175_core_ops = {
35631dcc	382	.init = adv7175_init,
b7eccc46	383	.s_power = adv7175_s_power,
1da177e4	384	};
1da177e4	385
35631dcc HV	386	static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	387	.s_std_output = adv7175_s_std_output,
	388	.s_routing = adv7175_s_routing,
ebcff5fc HV	389	};
	390
	391	static const struct v4l2_subdev_pad_ops adv7175_pad_ops = {
	392	.enum_mbus_code = adv7175_enum_mbus_code,
da298c6d	393	.get_fmt = adv7175_get_fmt,
6e80c473	394	.set_fmt = adv7175_set_fmt,
35631dcc HV	395	};
	396
	397	static const struct v4l2_subdev_ops adv7175_ops = {
	398	.core = &adv7175_core_ops,
	399	.video = &adv7175_video_ops,
ebcff5fc	400	.pad = &adv7175_pad_ops,
35631dcc HV	401	};
	402
	403	/* ----------------------------------------------------------------------- */
1da177e4	404
bba0d982 HV	405	static int adv7175_probe(struct i2c_client *client,
bba0d982 HV	406	const struct i2c_device_id *id)
1da177e4 LT	407	{
1da177e4 LT	408	int i;
1da177e4	409	struct adv7175 *encoder;
35631dcc	410	struct v4l2_subdev *sd;
1da177e4 LT	411
1da177e4 LT	412	/* Check if the adapter supports the needed features */
bba0d982 HV	413	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
bba0d982 HV	414	return -ENODEV;
1da177e4	415
bba0d982 HV	416	v4l_info(client, "chip found @ 0x%x (%s)\n",
bba0d982 HV	417	client->addr << 1, client->adapter->name);
1da177e4	418
c02b211d	419	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
bba0d982	420	if (encoder == NULL)
1da177e4	421	return -ENOMEM;
35631dcc HV	422	sd = &encoder->sd;
35631dcc HV	423	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
107063c6	424	encoder->norm = V4L2_STD_NTSC;
1da177e4	425	encoder->input = 0;
1da177e4	426
35631dcc	427	i = adv7175_write_block(sd, init_common, sizeof(init_common));
1da177e4	428	if (i >= 0) {
35631dcc HV	429	i = adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	430	i = adv7175_write(sd, 0x07, TR0MODE);
	431	i = adv7175_read(sd, 0x12);
	432	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	433	}
bba0d982	434	if (i < 0)
35631dcc	435	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	436	return 0;
	437	}
	438
bba0d982	439	static int adv7175_remove(struct i2c_client *client)
1da177e4	440	{
35631dcc HV	441	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	442
	443	v4l2_device_unregister_subdev(sd);
1da177e4 LT	444	return 0;
	445	}
	446
	447	/* ----------------------------------------------------------------------- */
	448
bba0d982 HV	449	static const struct i2c_device_id adv7175_id[] = {
	450	{ "adv7175", 0 },
	451	{ "adv7176", 0 },
	452	{ }
	453	};
	454	MODULE_DEVICE_TABLE(i2c, adv7175_id);
1da177e4	455
dc71443f HV	456	static struct i2c_driver adv7175_driver = {
dc71443f HV	457	.driver = {
dc71443f HV	458	.name = "adv7175",
	459	},
	460	.probe = adv7175_probe,
	461	.remove = adv7175_remove,
	462	.id_table = adv7175_id,
1da177e4	463	};
dc71443f	464
c6e8d86f	465	module_i2c_driver(adv7175_driver);