[deliverable/linux.git] / drivers / media / video / 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 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_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 const struct v4l2_subdev_core_ops adv7175_core_ops = {
	.g_chip_ident = adv7175_g_chip_ident,
	.init = adv7175_init,
};

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_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,
};

static __init int init_adv7175(void)
{
	return i2c_add_driver(&adv7175_driver);
}

static __exit void exit_adv7175(void)
{
	i2c_del_driver(&adv7175_driver);
}

module_init(init_adv7175);
module_exit(exit_adv7175);
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 LT	63
	64	/* ----------------------------------------------------------------------- */
	65
35631dcc	66	static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	67	{
35631dcc HV	68	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	69
1da177e4 LT	70	return i2c_smbus_write_byte_data(client, reg, value);
	71	}
	72
35631dcc	73	static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	74	{
35631dcc HV	75	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	76
1da177e4 LT	77	return i2c_smbus_read_byte_data(client, reg);
	78	}
	79
35631dcc	80	static int adv7175_write_block(struct v4l2_subdev *sd,
bba0d982	81	const u8 *data, unsigned int len)
1da177e4	82	{
35631dcc	83	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4 LT	84	int ret = -1;
	85	u8 reg;
	86
	87	/* the adv7175 has an autoincrement function, use it if
	88	* the adapter understands raw I2C */
	89	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	90	/* do raw I2C, not smbus compatible */
1da177e4	91	u8 block_data[32];
9aa45e34	92	int block_len;
1da177e4	93
1da177e4	94	while (len >= 2) {
9aa45e34 JD	95	block_len = 0;
9aa45e34 JD	96	block_data[block_len++] = reg = data[0];
1da177e4	97	do {
9aa45e34	98	block_data[block_len++] = data[1];
2467a670	99	reg++;
1da177e4 LT	100	len -= 2;
1da177e4 LT	101	data += 2;
bba0d982 HV	102	} while (len >= 2 && data[0] == reg && block_len < 32);
	103	ret = i2c_master_send(client, block_data, block_len);
	104	if (ret < 0)
1da177e4 LT	105	break;
	106	}
	107	} else {
	108	/* do some slow I2C emulation kind of thing */
	109	while (len >= 2) {
	110	reg = *data++;
35631dcc	111	ret = adv7175_write(sd, reg, *data++);
bba0d982	112	if (ret < 0)
1da177e4 LT	113	break;
	114	len -= 2;
	115	}
	116	}
	117
	118	return ret;
	119	}
	120
35631dcc	121	static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
1da177e4 LT	122	{
	123	/* for some reason pass_through NTSC needs
	124	* a different sub-carrier freq to remain stable. */
bba0d982	125	if (pass_through)
35631dcc	126	adv7175_write(sd, 0x02, 0x00);
1da177e4	127	else
35631dcc	128	adv7175_write(sd, 0x02, 0x55);
1da177e4	129
35631dcc HV	130	adv7175_write(sd, 0x03, 0x55);
	131	adv7175_write(sd, 0x04, 0x55);
	132	adv7175_write(sd, 0x05, 0x25);
1da177e4 LT	133	}
1da177e4 LT	134
1da177e4	135	/* ----------------------------------------------------------------------- */
bba0d982	136	/* Output filter: S-Video Composite */
1da177e4	137
bba0d982 HV	138	#define MR050 0x11 /* 0x09 */
bba0d982 HV	139	#define MR060 0x14 /* 0x0c */
1da177e4	140
bba0d982	141	/* ----------------------------------------------------------------------- */
1da177e4 LT	142
	143	#define TR0MODE 0x46
	144	#define TR0RST 0x80
	145
	146	#define TR1CAPT 0x80
	147	#define TR1PLAY 0x00
	148
	149	static const unsigned char init_common[] = {
	150
	151	0x00, MR050, /* MR0, PAL enabled */
	152	0x01, 0x00, /* MR1 */
	153	0x02, 0x0c, /* subc. freq. */
	154	0x03, 0x8c, /* subc. freq. */
	155	0x04, 0x79, /* subc. freq. */
	156	0x05, 0x26, /* subc. freq. */
	157	0x06, 0x40, /* subc. phase */
	158
	159	0x07, TR0MODE, /* TR0, 16bit */
	160	0x08, 0x21, /* */
	161	0x09, 0x00, /* */
	162	0x0a, 0x00, /* */
	163	0x0b, 0x00, /* */
	164	0x0c, TR1CAPT, /* TR1 */
	165	0x0d, 0x4f, /* MR2 */
	166	0x0e, 0x00, /* */
	167	0x0f, 0x00, /* */
	168	0x10, 0x00, /* */
	169	0x11, 0x00, /* */
	170	};
	171
	172	static const unsigned char init_pal[] = {
	173	0x00, MR050, /* MR0, PAL enabled */
	174	0x01, 0x00, /* MR1 */
	175	0x02, 0x0c, /* subc. freq. */
	176	0x03, 0x8c, /* subc. freq. */
	177	0x04, 0x79, /* subc. freq. */
	178	0x05, 0x26, /* subc. freq. */
	179	0x06, 0x40, /* subc. phase */
	180	};
	181
	182	static const unsigned char init_ntsc[] = {
	183	0x00, MR060, /* MR0, NTSC enabled */
	184	0x01, 0x00, /* MR1 */
	185	0x02, 0x55, /* subc. freq. */
	186	0x03, 0x55, /* subc. freq. */
	187	0x04, 0x55, /* subc. freq. */
	188	0x05, 0x25, /* subc. freq. */
	189	0x06, 0x1a, /* subc. phase */
	190	};
	191
35631dcc HV	192	static int adv7175_init(struct v4l2_subdev *sd, u32 val)
	193	{
	194	/* This is just for testing!!! */
	195	adv7175_write_block(sd, init_common, sizeof(init_common));
	196	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	197	adv7175_write(sd, 0x07, TR0MODE);
	198	return 0;
	199	}
	200
	201	static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	202	{
35631dcc HV	203	struct adv7175 *encoder = to_adv7175(sd);
	204
	205	if (std & V4L2_STD_NTSC) {
	206	adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
	207	if (encoder->input == 0)
	208	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	209	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	210	adv7175_write(sd, 0x07, TR0MODE);
	211	} else if (std & V4L2_STD_PAL) {
	212	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	213	if (encoder->input == 0)
	214	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	215	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	216	adv7175_write(sd, 0x07, TR0MODE);
	217	} else if (std & V4L2_STD_SECAM) {
	218	/* This is an attempt to convert
	219	* SECAM->PAL (typically it does not work
	220	* due to genlock: when decoder is in SECAM
	221	* and encoder in in PAL the subcarrier can
	222	* not be syncronized with horizontal
	223	* quency) */
	224	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	225	if (encoder->input == 0)
	226	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	227	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	228	adv7175_write(sd, 0x07, TR0MODE);
	229	} else {
cc5cef8e HV	230	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	231	(unsigned long long)std);
35631dcc HV	232	return -EINVAL;
35631dcc HV	233	}
cc5cef8e	234	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
35631dcc HV	235	encoder->norm = std;
	236	return 0;
	237	}
	238
5325b427 HV	239	static int adv7175_s_routing(struct v4l2_subdev *sd,
5325b427 HV	240	u32 input, u32 output, u32 config)
35631dcc HV	241	{
	242	struct adv7175 *encoder = to_adv7175(sd);
	243
5325b427 HV	244	/* RJ: input = 0: input is from decoder
	245	input = 1: input is from ZR36060
	246	input = 2: color bar */
35631dcc	247
5325b427	248	switch (input) {
35631dcc HV	249	case 0:
	250	adv7175_write(sd, 0x01, 0x00);
	251
	252	if (encoder->norm & V4L2_STD_NTSC)
	253	set_subcarrier_freq(sd, 1);
	254
	255	adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
	256	if (encoder->norm & V4L2_STD_SECAM)
	257	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	258	else
	259	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	260	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	261	adv7175_write(sd, 0x07, TR0MODE);
	262	/udelay(10);/
d56410e0	263	break;
1da177e4	264
35631dcc HV	265	case 1:
	266	adv7175_write(sd, 0x01, 0x00);
	267
	268	if (encoder->norm & V4L2_STD_NTSC)
	269	set_subcarrier_freq(sd, 0);
	270
	271	adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
	272	adv7175_write(sd, 0x0d, 0x49);
	273	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	274	adv7175_write(sd, 0x07, TR0MODE);
	275	/* udelay(10); */
1da177e4 LT	276	break;
1da177e4 LT	277
35631dcc HV	278	case 2:
	279	adv7175_write(sd, 0x01, 0x80);
	280
	281	if (encoder->norm & V4L2_STD_NTSC)
	282	set_subcarrier_freq(sd, 0);
	283
	284	adv7175_write(sd, 0x0d, 0x49);
	285	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	286	adv7175_write(sd, 0x07, TR0MODE);
	287	/* udelay(10); */
1da177e4 LT	288	break;
1da177e4 LT	289
1da177e4	290	default:
5325b427	291	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	292	return -EINVAL;
1da177e4 LT	293	}
5325b427 HV	294	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	295	encoder->input = input;
1da177e4 LT	296	return 0;
	297	}
	298
35631dcc HV	299	static int adv7175_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	300	{
	301	struct i2c_client *client = v4l2_get_subdevdata(sd);
	302
	303	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
	304	}
	305
1da177e4 LT	306	/* ----------------------------------------------------------------------- */
1da177e4 LT	307
35631dcc HV	308	static const struct v4l2_subdev_core_ops adv7175_core_ops = {
	309	.g_chip_ident = adv7175_g_chip_ident,
	310	.init = adv7175_init,
1da177e4	311	};
1da177e4	312
35631dcc HV	313	static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	314	.s_std_output = adv7175_s_std_output,
	315	.s_routing = adv7175_s_routing,
	316	};
	317
	318	static const struct v4l2_subdev_ops adv7175_ops = {
	319	.core = &adv7175_core_ops,
	320	.video = &adv7175_video_ops,
	321	};
	322
	323	/* ----------------------------------------------------------------------- */
1da177e4	324
bba0d982 HV	325	static int adv7175_probe(struct i2c_client *client,
bba0d982 HV	326	const struct i2c_device_id *id)
1da177e4 LT	327	{
1da177e4 LT	328	int i;
1da177e4	329	struct adv7175 *encoder;
35631dcc	330	struct v4l2_subdev *sd;
1da177e4 LT	331
1da177e4 LT	332	/* Check if the adapter supports the needed features */
bba0d982 HV	333	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
bba0d982 HV	334	return -ENODEV;
1da177e4	335
bba0d982 HV	336	v4l_info(client, "chip found @ 0x%x (%s)\n",
bba0d982 HV	337	client->addr << 1, client->adapter->name);
1da177e4	338
7408187d	339	encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
bba0d982	340	if (encoder == NULL)
1da177e4	341	return -ENOMEM;
35631dcc HV	342	sd = &encoder->sd;
35631dcc HV	343	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
107063c6	344	encoder->norm = V4L2_STD_NTSC;
1da177e4	345	encoder->input = 0;
1da177e4	346
35631dcc	347	i = adv7175_write_block(sd, init_common, sizeof(init_common));
1da177e4	348	if (i >= 0) {
35631dcc HV	349	i = adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	350	i = adv7175_write(sd, 0x07, TR0MODE);
	351	i = adv7175_read(sd, 0x12);
	352	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	353	}
bba0d982	354	if (i < 0)
35631dcc	355	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	356	return 0;
	357	}
	358
bba0d982	359	static int adv7175_remove(struct i2c_client *client)
1da177e4	360	{
35631dcc HV	361	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	362
	363	v4l2_device_unregister_subdev(sd);
	364	kfree(to_adv7175(sd));
1da177e4 LT	365	return 0;
	366	}
	367
	368	/* ----------------------------------------------------------------------- */
	369
bba0d982 HV	370	static const struct i2c_device_id adv7175_id[] = {
	371	{ "adv7175", 0 },
	372	{ "adv7176", 0 },
	373	{ }
	374	};
	375	MODULE_DEVICE_TABLE(i2c, adv7175_id);
1da177e4	376
dc71443f HV	377	static struct i2c_driver adv7175_driver = {
	378	.driver = {
	379	.owner = THIS_MODULE,
	380	.name = "adv7175",
	381	},
	382	.probe = adv7175_probe,
	383	.remove = adv7175_remove,
	384	.id_table = adv7175_id,
1da177e4	385	};
dc71443f HV	386
	387	static __init int init_adv7175(void)
	388	{
	389	return i2c_add_driver(&adv7175_driver);
	390	}
	391
	392	static __exit void exit_adv7175(void)
	393	{
	394	i2c_del_driver(&adv7175_driver);
	395	}
	396
	397	module_init(init_adv7175);
	398	module_exit(exit_adv7175);