[mirror_ubuntu-hirsute-kernel.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/ioctl.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/i2c-id.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.h>
#include <media/v4l2-i2c-drv.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 v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "adv7175",
	.probe = adv7175_probe,
	.remove = adv7175_remove,
	.id_table = adv7175_id,
};
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>
bba0d982	29	#include <linux/ioctl.h>
18f3fa1e	30	#include <asm/uaccess.h>
bba0d982 HV	31	#include <linux/i2c.h>
bba0d982 HV	32	#include <linux/i2c-id.h>
35631dcc HV	33	#include <linux/videodev2.h>
	34	#include <media/v4l2-device.h>
	35	#include <media/v4l2-chip-ident.h>
2d26698e	36	#include <media/v4l2-i2c-drv.h>
1da177e4 LT	37
	38	MODULE_DESCRIPTION("Analog Devices ADV7175 video encoder driver");
	39	MODULE_AUTHOR("Dave Perks");
	40	MODULE_LICENSE("GPL");
	41
35631dcc HV	42	#define I2C_ADV7175 0xd4
	43	#define I2C_ADV7176 0x54
	44
35631dcc	45
ff699e6b	46	static int debug;
1da177e4 LT	47	module_param(debug, int, 0);
	48	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	49
1da177e4 LT	50	/* ----------------------------------------------------------------------- */
	51
	52	struct adv7175 {
35631dcc	53	struct v4l2_subdev sd;
107063c6	54	v4l2_std_id norm;
1da177e4	55	int input;
1da177e4 LT	56	};
1da177e4 LT	57
35631dcc HV	58	static inline struct adv7175 to_adv7175(struct v4l2_subdev sd)
	59	{
	60	return container_of(sd, struct adv7175, sd);
	61	}
1da177e4	62
1da177e4	63	static char *inputs[] = { "pass_through", "play_back", "color_bar" };
1da177e4 LT	64
	65	/* ----------------------------------------------------------------------- */
	66
35631dcc	67	static inline int adv7175_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	68	{
35631dcc HV	69	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	70
1da177e4 LT	71	return i2c_smbus_write_byte_data(client, reg, value);
	72	}
	73
35631dcc	74	static inline int adv7175_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	75	{
35631dcc HV	76	struct i2c_client *client = v4l2_get_subdevdata(sd);
35631dcc HV	77
1da177e4 LT	78	return i2c_smbus_read_byte_data(client, reg);
	79	}
	80
35631dcc	81	static int adv7175_write_block(struct v4l2_subdev *sd,
bba0d982	82	const u8 *data, unsigned int len)
1da177e4	83	{
35631dcc	84	struct i2c_client *client = v4l2_get_subdevdata(sd);
1da177e4 LT	85	int ret = -1;
	86	u8 reg;
	87
	88	/* the adv7175 has an autoincrement function, use it if
	89	* the adapter understands raw I2C */
	90	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	91	/* do raw I2C, not smbus compatible */
1da177e4	92	u8 block_data[32];
9aa45e34	93	int block_len;
1da177e4	94
1da177e4	95	while (len >= 2) {
9aa45e34 JD	96	block_len = 0;
9aa45e34 JD	97	block_data[block_len++] = reg = data[0];
1da177e4	98	do {
9aa45e34	99	block_data[block_len++] = data[1];
2467a670	100	reg++;
1da177e4 LT	101	len -= 2;
1da177e4 LT	102	data += 2;
bba0d982 HV	103	} while (len >= 2 && data[0] == reg && block_len < 32);
	104	ret = i2c_master_send(client, block_data, block_len);
	105	if (ret < 0)
1da177e4 LT	106	break;
	107	}
	108	} else {
	109	/* do some slow I2C emulation kind of thing */
	110	while (len >= 2) {
	111	reg = *data++;
35631dcc	112	ret = adv7175_write(sd, reg, *data++);
bba0d982	113	if (ret < 0)
1da177e4 LT	114	break;
	115	len -= 2;
	116	}
	117	}
	118
	119	return ret;
	120	}
	121
35631dcc	122	static void set_subcarrier_freq(struct v4l2_subdev *sd, int pass_through)
1da177e4 LT	123	{
	124	/* for some reason pass_through NTSC needs
	125	* a different sub-carrier freq to remain stable. */
bba0d982	126	if (pass_through)
35631dcc	127	adv7175_write(sd, 0x02, 0x00);
1da177e4	128	else
35631dcc	129	adv7175_write(sd, 0x02, 0x55);
1da177e4	130
35631dcc HV	131	adv7175_write(sd, 0x03, 0x55);
	132	adv7175_write(sd, 0x04, 0x55);
	133	adv7175_write(sd, 0x05, 0x25);
1da177e4 LT	134	}
1da177e4 LT	135
1da177e4	136	/* ----------------------------------------------------------------------- */
bba0d982	137	/* Output filter: S-Video Composite */
1da177e4	138
bba0d982 HV	139	#define MR050 0x11 /* 0x09 */
bba0d982 HV	140	#define MR060 0x14 /* 0x0c */
1da177e4	141
bba0d982	142	/* ----------------------------------------------------------------------- */
1da177e4 LT	143
	144	#define TR0MODE 0x46
	145	#define TR0RST 0x80
	146
	147	#define TR1CAPT 0x80
	148	#define TR1PLAY 0x00
	149
	150	static const unsigned char init_common[] = {
	151
	152	0x00, MR050, /* MR0, PAL enabled */
	153	0x01, 0x00, /* MR1 */
	154	0x02, 0x0c, /* subc. freq. */
	155	0x03, 0x8c, /* subc. freq. */
	156	0x04, 0x79, /* subc. freq. */
	157	0x05, 0x26, /* subc. freq. */
	158	0x06, 0x40, /* subc. phase */
	159
	160	0x07, TR0MODE, /* TR0, 16bit */
	161	0x08, 0x21, /* */
	162	0x09, 0x00, /* */
	163	0x0a, 0x00, /* */
	164	0x0b, 0x00, /* */
	165	0x0c, TR1CAPT, /* TR1 */
	166	0x0d, 0x4f, /* MR2 */
	167	0x0e, 0x00, /* */
	168	0x0f, 0x00, /* */
	169	0x10, 0x00, /* */
	170	0x11, 0x00, /* */
	171	};
	172
	173	static const unsigned char init_pal[] = {
	174	0x00, MR050, /* MR0, PAL enabled */
	175	0x01, 0x00, /* MR1 */
	176	0x02, 0x0c, /* subc. freq. */
	177	0x03, 0x8c, /* subc. freq. */
	178	0x04, 0x79, /* subc. freq. */
	179	0x05, 0x26, /* subc. freq. */
	180	0x06, 0x40, /* subc. phase */
	181	};
	182
	183	static const unsigned char init_ntsc[] = {
	184	0x00, MR060, /* MR0, NTSC enabled */
	185	0x01, 0x00, /* MR1 */
	186	0x02, 0x55, /* subc. freq. */
	187	0x03, 0x55, /* subc. freq. */
	188	0x04, 0x55, /* subc. freq. */
	189	0x05, 0x25, /* subc. freq. */
	190	0x06, 0x1a, /* subc. phase */
	191	};
	192
35631dcc HV	193	static int adv7175_init(struct v4l2_subdev *sd, u32 val)
	194	{
	195	/* This is just for testing!!! */
	196	adv7175_write_block(sd, init_common, sizeof(init_common));
	197	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	198	adv7175_write(sd, 0x07, TR0MODE);
	199	return 0;
	200	}
	201
	202	static int adv7175_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	203	{
35631dcc HV	204	struct adv7175 *encoder = to_adv7175(sd);
	205
	206	if (std & V4L2_STD_NTSC) {
	207	adv7175_write_block(sd, init_ntsc, sizeof(init_ntsc));
	208	if (encoder->input == 0)
	209	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	210	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	211	adv7175_write(sd, 0x07, TR0MODE);
	212	} else if (std & V4L2_STD_PAL) {
	213	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	214	if (encoder->input == 0)
	215	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	216	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	217	adv7175_write(sd, 0x07, TR0MODE);
	218	} else if (std & V4L2_STD_SECAM) {
	219	/* This is an attempt to convert
	220	* SECAM->PAL (typically it does not work
	221	* due to genlock: when decoder is in SECAM
	222	* and encoder in in PAL the subcarrier can
	223	* not be syncronized with horizontal
	224	* quency) */
	225	adv7175_write_block(sd, init_pal, sizeof(init_pal));
	226	if (encoder->input == 0)
	227	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	228	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	229	adv7175_write(sd, 0x07, TR0MODE);
	230	} else {
cc5cef8e HV	231	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	232	(unsigned long long)std);
35631dcc HV	233	return -EINVAL;
35631dcc HV	234	}
cc5cef8e	235	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
35631dcc HV	236	encoder->norm = std;
	237	return 0;
	238	}
	239
5325b427 HV	240	static int adv7175_s_routing(struct v4l2_subdev *sd,
5325b427 HV	241	u32 input, u32 output, u32 config)
35631dcc HV	242	{
	243	struct adv7175 *encoder = to_adv7175(sd);
	244
5325b427 HV	245	/* RJ: input = 0: input is from decoder
	246	input = 1: input is from ZR36060
	247	input = 2: color bar */
35631dcc	248
5325b427	249	switch (input) {
35631dcc HV	250	case 0:
	251	adv7175_write(sd, 0x01, 0x00);
	252
	253	if (encoder->norm & V4L2_STD_NTSC)
	254	set_subcarrier_freq(sd, 1);
	255
	256	adv7175_write(sd, 0x0c, TR1CAPT); /* TR1 */
	257	if (encoder->norm & V4L2_STD_SECAM)
	258	adv7175_write(sd, 0x0d, 0x49); /* Disable genlock */
	259	else
	260	adv7175_write(sd, 0x0d, 0x4f); /* Enable genlock */
	261	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	262	adv7175_write(sd, 0x07, TR0MODE);
	263	/udelay(10);/
d56410e0	264	break;
1da177e4	265
35631dcc HV	266	case 1:
	267	adv7175_write(sd, 0x01, 0x00);
	268
	269	if (encoder->norm & V4L2_STD_NTSC)
	270	set_subcarrier_freq(sd, 0);
	271
	272	adv7175_write(sd, 0x0c, TR1PLAY); /* TR1 */
	273	adv7175_write(sd, 0x0d, 0x49);
	274	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	275	adv7175_write(sd, 0x07, TR0MODE);
	276	/* udelay(10); */
1da177e4 LT	277	break;
1da177e4 LT	278
35631dcc HV	279	case 2:
	280	adv7175_write(sd, 0x01, 0x80);
	281
	282	if (encoder->norm & V4L2_STD_NTSC)
	283	set_subcarrier_freq(sd, 0);
	284
	285	adv7175_write(sd, 0x0d, 0x49);
	286	adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	287	adv7175_write(sd, 0x07, TR0MODE);
	288	/* udelay(10); */
1da177e4 LT	289	break;
1da177e4 LT	290
1da177e4	291	default:
5325b427	292	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	293	return -EINVAL;
1da177e4 LT	294	}
5325b427 HV	295	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	296	encoder->input = input;
1da177e4 LT	297	return 0;
	298	}
	299
35631dcc HV	300	static int adv7175_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	301	{
	302	struct i2c_client *client = v4l2_get_subdevdata(sd);
	303
	304	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7175, 0);
	305	}
	306
1da177e4 LT	307	/* ----------------------------------------------------------------------- */
1da177e4 LT	308
35631dcc HV	309	static const struct v4l2_subdev_core_ops adv7175_core_ops = {
	310	.g_chip_ident = adv7175_g_chip_ident,
	311	.init = adv7175_init,
1da177e4	312	};
1da177e4	313
35631dcc HV	314	static const struct v4l2_subdev_video_ops adv7175_video_ops = {
	315	.s_std_output = adv7175_s_std_output,
	316	.s_routing = adv7175_s_routing,
	317	};
	318
	319	static const struct v4l2_subdev_ops adv7175_ops = {
	320	.core = &adv7175_core_ops,
	321	.video = &adv7175_video_ops,
	322	};
	323
	324	/* ----------------------------------------------------------------------- */
1da177e4	325
bba0d982 HV	326	static int adv7175_probe(struct i2c_client *client,
bba0d982 HV	327	const struct i2c_device_id *id)
1da177e4 LT	328	{
1da177e4 LT	329	int i;
1da177e4	330	struct adv7175 *encoder;
35631dcc	331	struct v4l2_subdev *sd;
1da177e4 LT	332
1da177e4 LT	333	/* Check if the adapter supports the needed features */
bba0d982 HV	334	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
bba0d982 HV	335	return -ENODEV;
1da177e4	336
bba0d982 HV	337	v4l_info(client, "chip found @ 0x%x (%s)\n",
bba0d982 HV	338	client->addr << 1, client->adapter->name);
1da177e4	339
7408187d	340	encoder = kzalloc(sizeof(struct adv7175), GFP_KERNEL);
bba0d982	341	if (encoder == NULL)
1da177e4	342	return -ENOMEM;
35631dcc HV	343	sd = &encoder->sd;
35631dcc HV	344	v4l2_i2c_subdev_init(sd, client, &adv7175_ops);
107063c6	345	encoder->norm = V4L2_STD_NTSC;
1da177e4	346	encoder->input = 0;
1da177e4	347
35631dcc	348	i = adv7175_write_block(sd, init_common, sizeof(init_common));
1da177e4	349	if (i >= 0) {
35631dcc HV	350	i = adv7175_write(sd, 0x07, TR0MODE \| TR0RST);
	351	i = adv7175_write(sd, 0x07, TR0MODE);
	352	i = adv7175_read(sd, 0x12);
	353	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	354	}
bba0d982	355	if (i < 0)
35631dcc	356	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	357	return 0;
	358	}
	359
bba0d982	360	static int adv7175_remove(struct i2c_client *client)
1da177e4	361	{
35631dcc HV	362	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	363
	364	v4l2_device_unregister_subdev(sd);
	365	kfree(to_adv7175(sd));
1da177e4 LT	366	return 0;
	367	}
	368
	369	/* ----------------------------------------------------------------------- */
	370
bba0d982 HV	371	static const struct i2c_device_id adv7175_id[] = {
	372	{ "adv7175", 0 },
	373	{ "adv7176", 0 },
	374	{ }
	375	};
	376	MODULE_DEVICE_TABLE(i2c, adv7175_id);
1da177e4	377
bba0d982 HV	378	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
bba0d982 HV	379	.name = "adv7175",
bba0d982 HV	380	.probe = adv7175_probe,
	381	.remove = adv7175_remove,
	382	.id_table = adv7175_id,
1da177e4	383	};