[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>
#include <media/v4l2-chip-ident.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 enum v4l2_mbus_pixelcode adv7175_codes[] = {
	V4L2_MBUS_FMT_UYVY8_2X8,
	V4L2_MBUS_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_fmt(struct v4l2_subdev *sd, unsigned int index,
				enum v4l2_mbus_pixelcode *code)
{
	if (index >= ARRAY_SIZE(adv7175_codes))
		return -EINVAL;

	*code = adv7175_codes[index];
	return 0;
}

static int adv7175_g_fmt(struct v4l2_subdev *sd,
				struct v4l2_mbus_framefmt *mf)
{
	u8 val = adv7175_read(sd, 0x7);

	if ((val & 0x40) == (1 << 6))
		mf->code = V4L2_MBUS_FMT_UYVY8_1X16;
	else
		mf->code = V4L2_MBUS_FMT_UYVY8_2X8;

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

	return 0;
}

static int adv7175_s_fmt(struct v4l2_subdev *sd,
				struct v4l2_mbus_framefmt *mf)
{
	u8 val = adv7175_read(sd, 0x7);
	int ret;

	switch (mf->code) {
	case V4L2_MBUS_FMT_UYVY8_2X8:
		val &= ~0x40;
		break;

	case V4L2_MBUS_FMT_UYVY8_1X16:
		val |= 0x40;
		break;

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

	ret = adv7175_write(sd, 0x7, val);

	return ret;
}

static int adv7175_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
}

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 = {
	.g_chip_ident = adv7175_g_chip_ident,
	.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,
	.s_mbus_fmt = adv7175_s_fmt,
	.g_mbus_fmt = adv7175_g_fmt,
	.enum_mbus_fmt  = adv7175_enum_fmt,
};

static const struct v4l2_subdev_ops adv7175_ops = {
	.core = &adv7175_core_ops,
	.video = &adv7175_video_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 = kzalloc(sizeof(struct adv7175), 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);
	kfree(to_adv7175(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 = {
		.owner	= THIS_MODULE,
		.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>
	34	#include <media/v4l2-device.h>
	35	#include <media/v4l2-chip-ident.h>
1da177e4 LT	36
	37	MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
	38	MODULE_AUTHOR("Dave Perks");
	39	MODULE_LICENSE("GPL");
	40
35631dcc HV	41	#define I2C_ADV7175 0xd4
	42	#define I2C_ADV7176 0x54
	43
35631dcc	44
ff699e6b	45	static int debug;
1da177e4 LT	46	module_param(debug, int, 0);
	47	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	48
1da177e4 LT	49	/* ----------------------------------------------------------------------- */
	50
	51	struct adv7175 {
35631dcc	52	struct v4l2_subdev sd;
107063c6	53	v4l2_std_id norm;
1da177e4	54	int input;
1da177e4 LT	55	};
1da177e4 LT	56
35631dcc HV	57	static inline struct adv7175 to_adv7175(struct v4l2_subdev sd)
	58	{
	59	return container_of(sd, struct adv7175, sd);
	60	}
1da177e4	61
1da177e4	62	static char *inputs[] = { "pass_through", "play_back", "color_bar" };
1da177e4	63
f1a84c9b CG	64	static enum v4l2_mbus_pixelcode adv7175_codes[] = {
	65	V4L2_MBUS_FMT_UYVY8_2X8,
	66	V4L2_MBUS_FMT_UYVY8_1X16,
	67	};
	68
1da177e4 LT	69	/* ----------------------------------------------------------------------- */
1da177e4 LT	70
35631dcc	71	static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	72	{
35631dcc HV	73	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	74
1da177e4 LT	75	return i2c_smbus_write_byte_data(client, reg, value);
	76	}
	77
35631dcc	78	static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	79	{
35631dcc HV	80	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	81
1da177e4 LT	82	return i2c_smbus_read_byte_data(client, reg);
	83	}
	84
35631dcc	85	static int adv7175_write_block(struct v4l2_subdev *sd,
bba0d982	86	const u8 *data, unsigned int len)
1da177e4	87	{
35631dcc	88	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4 LT	89	int ret = -1;
	90	u8 reg;
	91
	92	/* the adv7175 has an autoincrement function, use it if
	93	* the adapter understands raw I2C */
	94	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	95	/* do raw I2C, not smbus compatible */
1da177e4	96	u8 block_data[32];
9aa45e34	97	int block_len;
1da177e4	98
1da177e4	99	while (len >= 2) {
9aa45e34 JD	100	block_len = 0;
9aa45e34 JD	101	block_data[block_len++] = reg = data[0];
1da177e4	102	do {
9aa45e34	103	block_data[block_len++] = data[1];
2467a670	104	reg++;
1da177e4 LT	105	len -= 2;
1da177e4 LT	106	data += 2;
bba0d982 HV	107	} while (len >= 2 && data[0] == reg && block_len < 32);
	108	ret = i2c_master_send(client, block_data, block_len);
	109	if (ret < 0)
1da177e4 LT	110	break;
	111	}
	112	} else {
	113	/* do some slow I2C emulation kind of thing */
	114	while (len >= 2) {
	115	reg = *data++;
35631dcc	116	ret = adv7175_write(sd, reg, *data++);
bba0d982	117	if (ret < 0)
1da177e4 LT	118	break;
	119	len -= 2;
	120	}
	121	}
	122
	123	return ret;
	124	}
	125
35631dcc	126	static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
1da177e4 LT	127	{
	128	/* for some reason pass_through NTSC needs
	129	* a different sub-carrier freq to remain stable. */
bba0d982	130	if (pass_through)
35631dcc	131	adv7175_write(sd, 0x02, 0x00);
1da177e4	132	else
35631dcc	133	adv7175_write(sd, 0x02, 0x55);
1da177e4	134
35631dcc HV	135	adv7175_write(sd, 0x03, 0x55);
	136	adv7175_write(sd, 0x04, 0x55);
	137	adv7175_write(sd, 0x05, 0x25);
1da177e4 LT	138	}
1da177e4 LT	139
1da177e4	140	/* ----------------------------------------------------------------------- */
bba0d982	141	/* Output filter: S-Video Composite */
1da177e4	142
bba0d982 HV	143	#define MR050 0x11 /* 0x09 */
bba0d982 HV	144	#define MR060 0x14 /* 0x0c */
1da177e4	145
bba0d982	146	/* ----------------------------------------------------------------------- */
1da177e4 LT	147
	148	#define TR0MODE 0x46
	149	#define TR0RST 0x80
	150
	151	#define TR1CAPT 0x80
	152	#define TR1PLAY 0x00
	153
	154	static const unsigned char init_common[] = {
	155
	156	0x00, MR050, /* MR0, PAL enabled */
	157	0x01, 0x00, /* MR1 */
	158	0x02, 0x0c, /* subc. freq. */
	159	0x03, 0x8c, /* subc. freq. */
	160	0x04, 0x79, /* subc. freq. */
	161	0x05, 0x26, /* subc. freq. */
	162	0x06, 0x40, /* subc. phase */
	163
	164	0x07, TR0MODE, /* TR0, 16bit */
	165	0x08, 0x21, /* */
	166	0x09, 0x00, /* */
	167	0x0a, 0x00, /* */
	168	0x0b, 0x00, /* */
	169	0x0c, TR1CAPT, /* TR1 */
	170	0x0d, 0x4f, /* MR2 */
	171	0x0e, 0x00, /* */
	172	0x0f, 0x00, /* */
	173	0x10, 0x00, /* */
	174	0x11, 0x00, /* */
	175	};
	176
	177	static const unsigned char init_pal[] = {
	178	0x00, MR050, /* MR0, PAL enabled */
	179	0x01, 0x00, /* MR1 */
	180	0x02, 0x0c, /* subc. freq. */
	181	0x03, 0x8c, /* subc. freq. */
	182	0x04, 0x79, /* subc. freq. */
	183	0x05, 0x26, /* subc. freq. */
	184	0x06, 0x40, /* subc. phase */
	185	};
	186
	187	static const unsigned char init_ntsc[] = {
	188	0x00, MR060, /* MR0, NTSC enabled */
	189	0x01, 0x00, /* MR1 */
	190	0x02, 0x55, /* subc. freq. */
	191	0x03, 0x55, /* subc. freq. */
	192	0x04, 0x55, /* subc. freq. */
	193	0x05, 0x25, /* subc. freq. */
	194	0x06, 0x1a, /* subc. phase */
	195	};
	196
35631dcc HV	197	static int adv7175_init(struct v4l2_subdev *sd, u32 val)
	198	{
	199	/* This is just for testing!!! */
	200	adv7175_write_block(sd, init_common, sizeof(init_common));
	201	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	202	adv7175_write(sd, 0x07, TR0MODE);
	203	return 0;
	204	}
	205
	206	static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	207	{
35631dcc HV	208	struct adv7175 *encoder = to_adv7175(sd);
	209
	210	if (std & V4L2_STD_NTSC) {
	211	adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
	212	if (encoder->input == 0)
	213	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	214	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	215	adv7175_write(sd, 0x07, TR0MODE);
	216	} else if (std & V4L2_STD_PAL) {
	217	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	218	if (encoder->input == 0)
	219	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	220	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	221	adv7175_write(sd, 0x07, TR0MODE);
	222	} else if (std & V4L2_STD_SECAM) {
	223	/* This is an attempt to convert
	224	* SECAM->PAL (typically it does not work
	225	* due to genlock: when decoder is in SECAM
	226	* and encoder in in PAL the subcarrier can
	227	* not be syncronized with horizontal
	228	* quency) */
	229	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	230	if (encoder->input == 0)
	231	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	232	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	233	adv7175_write(sd, 0x07, TR0MODE);
	234	} else {
cc5cef8e HV	235	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	236	(unsigned long long)std);
35631dcc HV	237	return -EINVAL;
35631dcc HV	238	}
cc5cef8e	239	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
35631dcc HV	240	encoder->norm = std;
	241	return 0;
	242	}
	243
5325b427 HV	244	static int adv7175_s_routing(struct v4l2_subdev *sd,
5325b427 HV	245	u32 input, u32 output, u32 config)
35631dcc HV	246	{
	247	struct adv7175 *encoder = to_adv7175(sd);
	248
5325b427 HV	249	/* RJ: input = 0: input is from decoder
	250	input = 1: input is from ZR36060
	251	input = 2: color bar */
35631dcc	252
5325b427	253	switch (input) {
35631dcc HV	254	case 0:
	255	adv7175_write(sd, 0x01, 0x00);
	256
	257	if (encoder->norm & V4L2_STD_NTSC)
	258	set_subcarrier_freq(sd, 1);
	259
	260	adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
	261	if (encoder->norm & V4L2_STD_SECAM)
	262	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	263	else
	264	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	265	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	266	adv7175_write(sd, 0x07, TR0MODE);
	267	/udelay(10);/
d56410e0	268	break;
1da177e4	269
35631dcc HV	270	case 1:
	271	adv7175_write(sd, 0x01, 0x00);
	272
	273	if (encoder->norm & V4L2_STD_NTSC)
	274	set_subcarrier_freq(sd, 0);
	275
	276	adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
	277	adv7175_write(sd, 0x0d, 0x49);
	278	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	279	adv7175_write(sd, 0x07, TR0MODE);
	280	/* udelay(10); */
1da177e4 LT	281	break;
1da177e4 LT	282
35631dcc HV	283	case 2:
	284	adv7175_write(sd, 0x01, 0x80);
	285
	286	if (encoder->norm & V4L2_STD_NTSC)
	287	set_subcarrier_freq(sd, 0);
	288
	289	adv7175_write(sd, 0x0d, 0x49);
	290	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	291	adv7175_write(sd, 0x07, TR0MODE);
	292	/* udelay(10); */
1da177e4 LT	293	break;
1da177e4 LT	294
1da177e4	295	default:
5325b427	296	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	297	return -EINVAL;
1da177e4 LT	298	}
5325b427 HV	299	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	300	encoder->input = input;
1da177e4 LT	301	return 0;
	302	}
	303
f1a84c9b CG	304	static int adv7175_enum_fmt(struct v4l2_subdev *sd, unsigned int index,
	305	enum v4l2_mbus_pixelcode *code)
	306	{
	307	if (index >= ARRAY_SIZE(adv7175_codes))
	308	return -EINVAL;
	309
	310	*code = adv7175_codes[index];
	311	return 0;
	312	}
	313
	314	static int adv7175_g_fmt(struct v4l2_subdev *sd,
	315	struct v4l2_mbus_framefmt *mf)
	316	{
	317	u8 val = adv7175_read(sd, 0x7);
	318
	319	if ((val & 0x40) == (1 << 6))
	320	mf->code = V4L2_MBUS_FMT_UYVY8_1X16;
	321	else
	322	mf->code = V4L2_MBUS_FMT_UYVY8_2X8;
	323
	324	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
	325	mf->width = 0;
	326	mf->height = 0;
	327	mf->field = V4L2_FIELD_ANY;
	328
	329	return 0;
	330	}
	331
	332	static int adv7175_s_fmt(struct v4l2_subdev *sd,
	333	struct v4l2_mbus_framefmt *mf)
	334	{
	335	u8 val = adv7175_read(sd, 0x7);
	336	int ret;
	337
	338	switch (mf->code) {
	339	case V4L2_MBUS_FMT_UYVY8_2X8:
	340	val &= ~0x40;
	341	break;
	342
	343	case V4L2_MBUS_FMT_UYVY8_1X16:
	344	val \|= 0x40;
	345	break;
	346
	347	default:
	348	v4l2_dbg(1, debug, sd,
	349	"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
	350	return -EINVAL;
	351	}
	352
	353	ret = adv7175_write(sd, 0x7, val);
	354
	355	return ret;
	356	}
	357
35631dcc HV	358	static int adv7175_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	359	{
	360	struct i2c_client *client = v4l2_get_subdevdata(sd);
	361
	362	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
	363	}
	364
b7eccc46 CG	365	static int adv7175_s_power(struct v4l2_subdev *sd, int on)
	366	{
	367	if (on)
	368	adv7175_write(sd, 0x01, 0x00);
	369	else
	370	adv7175_write(sd, 0x01, 0x78);
	371
	372	return 0;
	373	}
	374
1da177e4 LT	375	/* ----------------------------------------------------------------------- */
1da177e4 LT	376
35631dcc HV	377	static const struct v4l2_subdev_core_ops adv7175_core_ops = {
	378	.g_chip_ident = adv7175_g_chip_ident,
	379	.init = adv7175_init,
b7eccc46	380	.s_power = adv7175_s_power,
1da177e4	381	};
1da177e4	382
35631dcc HV	383	static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	384	.s_std_output = adv7175_s_std_output,
	385	.s_routing = adv7175_s_routing,
f1a84c9b CG	386	.s_mbus_fmt = adv7175_s_fmt,
	387	.g_mbus_fmt = adv7175_g_fmt,
	388	.enum_mbus_fmt = adv7175_enum_fmt,
35631dcc HV	389	};
	390
	391	static const struct v4l2_subdev_ops adv7175_ops = {
	392	.core = &adv7175_core_ops,
	393	.video = &adv7175_video_ops,
	394	};
	395
	396	/* ----------------------------------------------------------------------- */
1da177e4	397
bba0d982 HV	398	static int adv7175_probe(struct i2c_client *client,
bba0d982 HV	399	const struct i2c_device_id *id)
1da177e4 LT	400	{
1da177e4 LT	401	int i;
1da177e4	402	struct adv7175 *encoder;
35631dcc	403	struct v4l2_subdev *sd;
1da177e4 LT	404
1da177e4 LT	405	/* Check if the adapter supports the needed features */
bba0d982 HV	406	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
bba0d982 HV	407	return -ENODEV;
1da177e4	408
bba0d982 HV	409	v4l_info(client, "chip found @ 0x%x (%s)\n",
bba0d982 HV	410	client->addr << 1, client->adapter->name);
1da177e4	411
7408187d	412	encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
bba0d982	413	if (encoder == NULL)
1da177e4	414	return -ENOMEM;
35631dcc HV	415	sd = &encoder->sd;
35631dcc HV	416	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
107063c6	417	encoder->norm = V4L2_STD_NTSC;
1da177e4	418	encoder->input = 0;
1da177e4	419
35631dcc	420	i = adv7175_write_block(sd, init_common, sizeof(init_common));
1da177e4	421	if (i >= 0) {
35631dcc HV	422	i = adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	423	i = adv7175_write(sd, 0x07, TR0MODE);
	424	i = adv7175_read(sd, 0x12);
	425	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	426	}
bba0d982	427	if (i < 0)
35631dcc	428	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	429	return 0;
	430	}
	431
bba0d982	432	static int adv7175_remove(struct i2c_client *client)
1da177e4	433	{
35631dcc HV	434	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	435
	436	v4l2_device_unregister_subdev(sd);
	437	kfree(to_adv7175(sd));
1da177e4 LT	438	return 0;
	439	}
	440
	441	/* ----------------------------------------------------------------------- */
	442
bba0d982 HV	443	static const struct i2c_device_id adv7175_id[] = {
	444	{ "adv7175", 0 },
	445	{ "adv7176", 0 },
	446	{ }
	447	};
	448	MODULE_DEVICE_TABLE(i2c, adv7175_id);
1da177e4	449
dc71443f HV	450	static struct i2c_driver adv7175_driver = {
	451	.driver = {
	452	.owner = THIS_MODULE,
	453	.name = "adv7175",
	454	},
	455	.probe = adv7175_probe,
	456	.remove = adv7175_remove,
	457	.id_table = adv7175_id,
1da177e4	458	};
dc71443f	459
c6e8d86f	460	module_i2c_driver(adv7175_driver);