[mirror_ubuntu-artful-kernel.git] / drivers / media / i2c / adv7170.c

/*
 * adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
 *
 * Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
 *
 * Based on adv7176 driver by:
 *
 * 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 (1/1/2003)
 *
 * 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.
 */

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

MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
MODULE_AUTHOR("Maxim Yevtyushkin");
MODULE_LICENSE("GPL");


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

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

struct adv7170 {
	struct v4l2_subdev sd;
	unsigned char reg[128];

	v4l2_std_id norm;
	int input;
};

static inline struct adv7170 *to_adv7170(struct v4l2_subdev *sd)
{
	return container_of(sd, struct adv7170, sd);
}

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

static u32 adv7170_codes[] = {
	MEDIA_BUS_FMT_UYVY8_2X8,
	MEDIA_BUS_FMT_UYVY8_1X16,
};

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

static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct adv7170 *encoder = to_adv7170(sd);

	encoder->reg[reg] = value;
	return i2c_smbus_write_byte_data(client, reg, value);
}

static inline int adv7170_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 adv7170_write_block(struct v4l2_subdev *sd,
		     const u8 *data, unsigned int len)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct adv7170 *encoder = to_adv7170(sd);
	int ret = -1;
	u8 reg;

	/* the adv7170 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++] =
				    encoder->reg[reg++] = data[1];
				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 = adv7170_write(sd, reg, *data++);
			if (ret < 0)
				break;
			len -= 2;
		}
	}
	return ret;
}

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

#define TR0MODE     0x4c
#define TR0RST	    0x80

#define TR1CAPT	    0x00
#define TR1PLAY	    0x00

static const unsigned char init_NTSC[] = {
	0x00, 0x10,		/* MR0 */
	0x01, 0x20,		/* MR1 */
	0x02, 0x0e,		/* MR2 RTC control: bits 2 and 1 */
	0x03, 0x80,		/* MR3 */
	0x04, 0x30,		/* MR4 */
	0x05, 0x00,		/* Reserved */
	0x06, 0x00,		/* Reserved */
	0x07, TR0MODE,		/* TM0 */
	0x08, TR1CAPT,		/* TM1 */
	0x09, 0x16,		/* Fsc0 */
	0x0a, 0x7c,		/* Fsc1 */
	0x0b, 0xf0,		/* Fsc2 */
	0x0c, 0x21,		/* Fsc3 */
	0x0d, 0x00,		/* Subcarrier Phase */
	0x0e, 0x00,		/* Closed Capt. Ext 0 */
	0x0f, 0x00,		/* Closed Capt. Ext 1 */
	0x10, 0x00,		/* Closed Capt. 0 */
	0x11, 0x00,		/* Closed Capt. 1 */
	0x12, 0x00,		/* Pedestal Ctl 0 */
	0x13, 0x00,		/* Pedestal Ctl 1 */
	0x14, 0x00,		/* Pedestal Ctl 2 */
	0x15, 0x00,		/* Pedestal Ctl 3 */
	0x16, 0x00,		/* CGMS_WSS_0 */
	0x17, 0x00,		/* CGMS_WSS_1 */
	0x18, 0x00,		/* CGMS_WSS_2 */
	0x19, 0x00,		/* Teletext Ctl */
};

static const unsigned char init_PAL[] = {
	0x00, 0x71,		/* MR0 */
	0x01, 0x20,		/* MR1 */
	0x02, 0x0e,		/* MR2 RTC control: bits 2 and 1 */
	0x03, 0x80,		/* MR3 */
	0x04, 0x30,		/* MR4 */
	0x05, 0x00,		/* Reserved */
	0x06, 0x00,		/* Reserved */
	0x07, TR0MODE,		/* TM0 */
	0x08, TR1CAPT,		/* TM1 */
	0x09, 0xcb,		/* Fsc0 */
	0x0a, 0x8a,		/* Fsc1 */
	0x0b, 0x09,		/* Fsc2 */
	0x0c, 0x2a,		/* Fsc3 */
	0x0d, 0x00,		/* Subcarrier Phase */
	0x0e, 0x00,		/* Closed Capt. Ext 0 */
	0x0f, 0x00,		/* Closed Capt. Ext 1 */
	0x10, 0x00,		/* Closed Capt. 0 */
	0x11, 0x00,		/* Closed Capt. 1 */
	0x12, 0x00,		/* Pedestal Ctl 0 */
	0x13, 0x00,		/* Pedestal Ctl 1 */
	0x14, 0x00,		/* Pedestal Ctl 2 */
	0x15, 0x00,		/* Pedestal Ctl 3 */
	0x16, 0x00,		/* CGMS_WSS_0 */
	0x17, 0x00,		/* CGMS_WSS_1 */
	0x18, 0x00,		/* CGMS_WSS_2 */
	0x19, 0x00,		/* Teletext Ctl */
};


static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct adv7170 *encoder = to_adv7170(sd);

	v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);

	if (std & V4L2_STD_NTSC) {
		adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
		if (encoder->input == 0)
			adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
		adv7170_write(sd, 0x07, TR0MODE);
	} else if (std & V4L2_STD_PAL) {
		adv7170_write_block(sd, init_PAL, sizeof(init_PAL));
		if (encoder->input == 0)
			adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
		adv7170_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 adv7170_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct adv7170 *encoder = to_adv7170(sd);

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

	v4l2_dbg(1, debug, sd, "set input from %s\n",
			input == 0 ? "decoder" : "ZR36060");

	switch (input) {
	case 0:
		adv7170_write(sd, 0x01, 0x20);
		adv7170_write(sd, 0x08, TR1CAPT);	/* TR1 */
		adv7170_write(sd, 0x02, 0x0e);	/* Enable genlock */
		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
		adv7170_write(sd, 0x07, TR0MODE);
		/* udelay(10); */
		break;

	case 1:
		adv7170_write(sd, 0x01, 0x00);
		adv7170_write(sd, 0x08, TR1PLAY);	/* TR1 */
		adv7170_write(sd, 0x02, 0x08);
		adv7170_write(sd, 0x07, TR0MODE | TR0RST);
		adv7170_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 adv7170_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(adv7170_codes))
		return -EINVAL;

	code->code = adv7170_codes[code->index];
	return 0;
}

static int adv7170_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 = adv7170_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 adv7170_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 = adv7170_read(sd, 0x7);

	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)
		return adv7170_write(sd, 0x7, val);

	return 0;
}

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

static const struct v4l2_subdev_video_ops adv7170_video_ops = {
	.s_std_output = adv7170_s_std_output,
	.s_routing = adv7170_s_routing,
};

static const struct v4l2_subdev_pad_ops adv7170_pad_ops = {
	.enum_mbus_code = adv7170_enum_mbus_code,
	.get_fmt = adv7170_get_fmt,
	.set_fmt = adv7170_set_fmt,
};

static const struct v4l2_subdev_ops adv7170_ops = {
	.video = &adv7170_video_ops,
	.pad = &adv7170_pad_ops,
};

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

static int adv7170_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct adv7170 *encoder;
	struct v4l2_subdev *sd;
	int i;

	/* 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, &adv7170_ops);
	encoder->norm = V4L2_STD_NTSC;
	encoder->input = 0;

	i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
	if (i >= 0) {
		i = adv7170_write(sd, 0x07, TR0MODE | TR0RST);
		i = adv7170_write(sd, 0x07, TR0MODE);
		i = adv7170_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 adv7170_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 adv7170_id[] = {
	{ "adv7170", 0 },
	{ "adv7171", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, adv7170_id);

static struct i2c_driver adv7170_driver = {
	.driver = {
		.name	= "adv7170",
	},
	.probe		= adv7170_probe,
	.remove		= adv7170_remove,
	.id_table	= adv7170_id,
};

module_i2c_driver(adv7170_driver);
Commit	Line	Data
d56410e0	1	/*
1da177e4 LT	2	* adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
	3	*
	4	* Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
	5	*
d56410e0	6	* Based on adv7176 driver by:
1da177e4 LT	7	*
	8	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	9	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	10	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	11	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	12	*
	13	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	14	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	15	*
	16	* This program is free software; you can redistribute it and/or modify
	17	* it under the terms of the GNU General Public License as published by
	18	* the Free Software Foundation; either version 2 of the License, or
	19	* (at your option) any later version.
	20	*
	21	* This program is distributed in the hope that it will be useful,
	22	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	24	* GNU General Public License for more details.
1da177e4 LT	25	*/
	26
	27	#include <linux/module.h>
18f3fa1e	28	#include <linux/types.h>
5a0e3ad6	29	#include <linux/slab.h>
b9a21f84	30	#include <linux/ioctl.h>
7c0f6ba6	31	#include <linux/uaccess.h>
b9a21f84	32	#include <linux/i2c.h>
7d9ef21c HV	33	#include <linux/videodev2.h>
7d9ef21c HV	34	#include <media/v4l2-device.h>
1da177e4 LT	35
	36	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	37	MODULE_AUTHOR("Maxim Yevtyushkin");
	38	MODULE_LICENSE("GPL");
	39
7d9ef21c	40
ff699e6b	41	static int debug;
1da177e4 LT	42	module_param(debug, int, 0);
	43	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	44
1da177e4 LT	45	/* ----------------------------------------------------------------------- */
	46
	47	struct adv7170 {
7d9ef21c	48	struct v4l2_subdev sd;
1da177e4 LT	49	unsigned char reg[128];
1da177e4 LT	50
107063c6	51	v4l2_std_id norm;
1da177e4	52	int input;
1da177e4 LT	53	};
1da177e4 LT	54
7d9ef21c HV	55	static inline struct adv7170 to_adv7170(struct v4l2_subdev sd)
	56	{
	57	return container_of(sd, struct adv7170, sd);
	58	}
	59
1da177e4	60	static char *inputs[] = { "pass_through", "play_back" };
1da177e4	61
f5fe58fd BB	62	static u32 adv7170_codes[] = {
	63	MEDIA_BUS_FMT_UYVY8_2X8,
	64	MEDIA_BUS_FMT_UYVY8_1X16,
0d37d350 CG	65	};
0d37d350 CG	66
1da177e4 LT	67	/* ----------------------------------------------------------------------- */
1da177e4 LT	68
7d9ef21c	69	static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	70	{
7d9ef21c HV	71	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	72	struct adv7170 *encoder = to_adv7170(sd);
1da177e4 LT	73
	74	encoder->reg[reg] = value;
	75	return i2c_smbus_write_byte_data(client, reg, value);
	76	}
	77
7d9ef21c	78	static inline int adv7170_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	79	{
7d9ef21c HV	80	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	81
1da177e4 LT	82	return i2c_smbus_read_byte_data(client, reg);
	83	}
	84
7d9ef21c	85	static int adv7170_write_block(struct v4l2_subdev *sd,
b9a21f84	86	const u8 *data, unsigned int len)
1da177e4	87	{
7d9ef21c HV	88	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	89	struct adv7170 *encoder = to_adv7170(sd);
1da177e4 LT	90	int ret = -1;
	91	u8 reg;
	92
	93	/* the adv7170 has an autoincrement function, use it if
	94	* the adapter understands raw I2C */
	95	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	96	/* do raw I2C, not smbus compatible */
1da177e4	97	u8 block_data[32];
9aa45e34	98	int block_len;
1da177e4	99
1da177e4	100	while (len >= 2) {
9aa45e34 JD	101	block_len = 0;
9aa45e34 JD	102	block_data[block_len++] = reg = data[0];
1da177e4	103	do {
9aa45e34	104	block_data[block_len++] =
1da177e4 LT	105	encoder->reg[reg++] = data[1];
	106	len -= 2;
	107	data += 2;
b9a21f84 HV	108	} while (len >= 2 && data[0] == reg && block_len < 32);
	109	ret = i2c_master_send(client, block_data, block_len);
	110	if (ret < 0)
1da177e4 LT	111	break;
	112	}
	113	} else {
	114	/* do some slow I2C emulation kind of thing */
	115	while (len >= 2) {
	116	reg = *data++;
7d9ef21c	117	ret = adv7170_write(sd, reg, *data++);
b9a21f84	118	if (ret < 0)
1da177e4 LT	119	break;
	120	len -= 2;
	121	}
	122	}
1da177e4 LT	123	return ret;
	124	}
	125
	126	/* ----------------------------------------------------------------------- */
1da177e4 LT	127
	128	#define TR0MODE 0x4c
	129	#define TR0RST 0x80
	130
	131	#define TR1CAPT 0x00
	132	#define TR1PLAY 0x00
	133
1da177e4	134	static const unsigned char init_NTSC[] = {
7d9ef21c HV	135	0x00, 0x10, /* MR0 */
	136	0x01, 0x20, /* MR1 */
	137	0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */
	138	0x03, 0x80, /* MR3 */
	139	0x04, 0x30, /* MR4 */
	140	0x05, 0x00, /* Reserved */
	141	0x06, 0x00, /* Reserved */
	142	0x07, TR0MODE, /* TM0 */
	143	0x08, TR1CAPT, /* TM1 */
	144	0x09, 0x16, /* Fsc0 */
	145	0x0a, 0x7c, /* Fsc1 */
	146	0x0b, 0xf0, /* Fsc2 */
	147	0x0c, 0x21, /* Fsc3 */
	148	0x0d, 0x00, /* Subcarrier Phase */
	149	0x0e, 0x00, /* Closed Capt. Ext 0 */
	150	0x0f, 0x00, /* Closed Capt. Ext 1 */
	151	0x10, 0x00, /* Closed Capt. 0 */
	152	0x11, 0x00, /* Closed Capt. 1 */
	153	0x12, 0x00, /* Pedestal Ctl 0 */
	154	0x13, 0x00, /* Pedestal Ctl 1 */
	155	0x14, 0x00, /* Pedestal Ctl 2 */
	156	0x15, 0x00, /* Pedestal Ctl 3 */
	157	0x16, 0x00, /* CGMS_WSS_0 */
	158	0x17, 0x00, /* CGMS_WSS_1 */
	159	0x18, 0x00, /* CGMS_WSS_2 */
	160	0x19, 0x00, /* Teletext Ctl */
1da177e4 LT	161	};
	162
	163	static const unsigned char init_PAL[] = {
7d9ef21c HV	164	0x00, 0x71, /* MR0 */
	165	0x01, 0x20, /* MR1 */
	166	0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */
	167	0x03, 0x80, /* MR3 */
	168	0x04, 0x30, /* MR4 */
	169	0x05, 0x00, /* Reserved */
	170	0x06, 0x00, /* Reserved */
	171	0x07, TR0MODE, /* TM0 */
	172	0x08, TR1CAPT, /* TM1 */
	173	0x09, 0xcb, /* Fsc0 */
	174	0x0a, 0x8a, /* Fsc1 */
	175	0x0b, 0x09, /* Fsc2 */
	176	0x0c, 0x2a, /* Fsc3 */
	177	0x0d, 0x00, /* Subcarrier Phase */
	178	0x0e, 0x00, /* Closed Capt. Ext 0 */
	179	0x0f, 0x00, /* Closed Capt. Ext 1 */
	180	0x10, 0x00, /* Closed Capt. 0 */
	181	0x11, 0x00, /* Closed Capt. 1 */
	182	0x12, 0x00, /* Pedestal Ctl 0 */
	183	0x13, 0x00, /* Pedestal Ctl 1 */
	184	0x14, 0x00, /* Pedestal Ctl 2 */
	185	0x15, 0x00, /* Pedestal Ctl 3 */
	186	0x16, 0x00, /* CGMS_WSS_0 */
	187	0x17, 0x00, /* CGMS_WSS_1 */
	188	0x18, 0x00, /* CGMS_WSS_2 */
	189	0x19, 0x00, /* Teletext Ctl */
1da177e4 LT	190	};
	191
	192
7d9ef21c	193	static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	194	{
7d9ef21c HV	195	struct adv7170 *encoder = to_adv7170(sd);
7d9ef21c HV	196
cc5cef8e	197	v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
7d9ef21c HV	198
	199	if (std & V4L2_STD_NTSC) {
	200	adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
	201	if (encoder->input == 0)
	202	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	203	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	204	adv7170_write(sd, 0x07, TR0MODE);
	205	} else if (std & V4L2_STD_PAL) {
	206	adv7170_write_block(sd, init_PAL, sizeof(init_PAL));
	207	if (encoder->input == 0)
	208	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	209	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	210	adv7170_write(sd, 0x07, TR0MODE);
	211	} else {
cc5cef8e HV	212	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	213	(unsigned long long)std);
7d9ef21c	214	return -EINVAL;
b9a21f84	215	}
cc5cef8e	216	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
7d9ef21c HV	217	encoder->norm = std;
	218	return 0;
	219	}
1da177e4	220
5325b427 HV	221	static int adv7170_s_routing(struct v4l2_subdev *sd,
5325b427 HV	222	u32 input, u32 output, u32 config)
7d9ef21c HV	223	{
7d9ef21c HV	224	struct adv7170 *encoder = to_adv7170(sd);
1da177e4	225
5325b427 HV	226	/* RJ: input = 0: input is from decoder
	227	input = 1: input is from ZR36060
	228	input = 2: color bar */
1da177e4	229
7d9ef21c	230	v4l2_dbg(1, debug, sd, "set input from %s\n",
5325b427	231	input == 0 ? "decoder" : "ZR36060");
1da177e4	232
5325b427	233	switch (input) {
7d9ef21c HV	234	case 0:
	235	adv7170_write(sd, 0x01, 0x20);
	236	adv7170_write(sd, 0x08, TR1CAPT); /* TR1 */
	237	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	238	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	239	adv7170_write(sd, 0x07, TR0MODE);
	240	/* udelay(10); */
	241	break;
	242
	243	case 1:
	244	adv7170_write(sd, 0x01, 0x00);
	245	adv7170_write(sd, 0x08, TR1PLAY); /* TR1 */
	246	adv7170_write(sd, 0x02, 0x08);
	247	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	248	adv7170_write(sd, 0x07, TR0MODE);
	249	/* udelay(10); */
1da177e4 LT	250	break;
	251
	252	default:
5325b427	253	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	254	return -EINVAL;
1da177e4 LT	255	}
5325b427 HV	256	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	257	encoder->input = input;
1da177e4 LT	258	return 0;
	259	}
	260
ebcff5fc HV	261	static int adv7170_enum_mbus_code(struct v4l2_subdev *sd,
	262	struct v4l2_subdev_pad_config *cfg,
	263	struct v4l2_subdev_mbus_code_enum *code)
0d37d350	264	{
ebcff5fc	265	if (code->pad \|\| code->index >= ARRAY_SIZE(adv7170_codes))
0d37d350 CG	266	return -EINVAL;
0d37d350 CG	267
ebcff5fc	268	code->code = adv7170_codes[code->index];
0d37d350 CG	269	return 0;
	270	}
	271
da298c6d HV	272	static int adv7170_get_fmt(struct v4l2_subdev *sd,
	273	struct v4l2_subdev_pad_config *cfg,
	274	struct v4l2_subdev_format *format)
0d37d350	275	{
da298c6d	276	struct v4l2_mbus_framefmt *mf = &format->format;
0d37d350 CG	277	u8 val = adv7170_read(sd, 0x7);
0d37d350 CG	278
da298c6d HV	279	if (format->pad)
	280	return -EINVAL;
	281
0d37d350	282	if ((val & 0x40) == (1 << 6))
f5fe58fd	283	mf->code = MEDIA_BUS_FMT_UYVY8_1X16;
0d37d350	284	else
f5fe58fd	285	mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
0d37d350 CG	286
	287	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
	288	mf->width = 0;
	289	mf->height = 0;
	290	mf->field = V4L2_FIELD_ANY;
	291
	292	return 0;
	293	}
	294
6e80c473 HV	295	static int adv7170_set_fmt(struct v4l2_subdev *sd,
	296	struct v4l2_subdev_pad_config *cfg,
	297	struct v4l2_subdev_format *format)
0d37d350	298	{
6e80c473	299	struct v4l2_mbus_framefmt *mf = &format->format;
0d37d350	300	u8 val = adv7170_read(sd, 0x7);
6e80c473 HV	301
	302	if (format->pad)
	303	return -EINVAL;
0d37d350 CG	304
0d37d350 CG	305	switch (mf->code) {
f5fe58fd	306	case MEDIA_BUS_FMT_UYVY8_2X8:
0d37d350 CG	307	val &= ~0x40;
	308	break;
	309
f5fe58fd	310	case MEDIA_BUS_FMT_UYVY8_1X16:
0d37d350 CG	311	val \|= 0x40;
	312	break;
	313
	314	default:
	315	v4l2_dbg(1, debug, sd,
	316	"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
	317	return -EINVAL;
	318	}
	319
6e80c473	320	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
5f98e5f5	321	return adv7170_write(sd, 0x7, val);
0d37d350	322
5f98e5f5	323	return 0;
0d37d350 CG	324	}
0d37d350 CG	325
1da177e4 LT	326	/* ----------------------------------------------------------------------- */
1da177e4 LT	327
7d9ef21c HV	328	static const struct v4l2_subdev_video_ops adv7170_video_ops = {
	329	.s_std_output = adv7170_s_std_output,
	330	.s_routing = adv7170_s_routing,
ebcff5fc HV	331	};
	332
	333	static const struct v4l2_subdev_pad_ops adv7170_pad_ops = {
	334	.enum_mbus_code = adv7170_enum_mbus_code,
da298c6d	335	.get_fmt = adv7170_get_fmt,
6e80c473	336	.set_fmt = adv7170_set_fmt,
7d9ef21c HV	337	};
	338
	339	static const struct v4l2_subdev_ops adv7170_ops = {
7d9ef21c	340	.video = &adv7170_video_ops,
ebcff5fc	341	.pad = &adv7170_pad_ops,
7d9ef21c HV	342	};
	343
	344	/* ----------------------------------------------------------------------- */
d56410e0	345
b9a21f84 HV	346	static int adv7170_probe(struct i2c_client *client,
b9a21f84 HV	347	const struct i2c_device_id *id)
1da177e4	348	{
1da177e4	349	struct adv7170 *encoder;
7d9ef21c	350	struct v4l2_subdev *sd;
b9a21f84	351	int i;
1da177e4 LT	352
1da177e4 LT	353	/* Check if the adapter supports the needed features */
b9a21f84 HV	354	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
b9a21f84 HV	355	return -ENODEV;
1da177e4	356
b9a21f84 HV	357	v4l_info(client, "chip found @ 0x%x (%s)\n",
b9a21f84 HV	358	client->addr << 1, client->adapter->name);
1da177e4	359
c02b211d	360	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
b9a21f84	361	if (encoder == NULL)
1da177e4	362	return -ENOMEM;
7d9ef21c HV	363	sd = &encoder->sd;
7d9ef21c HV	364	v4l2_i2c_subdev_init(sd, client, &adv7170_ops);
107063c6	365	encoder->norm = V4L2_STD_NTSC;
1da177e4	366	encoder->input = 0;
1da177e4	367
7d9ef21c	368	i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
1da177e4	369	if (i >= 0) {
7d9ef21c HV	370	i = adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	371	i = adv7170_write(sd, 0x07, TR0MODE);
	372	i = adv7170_read(sd, 0x12);
	373	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	374	}
b9a21f84	375	if (i < 0)
7d9ef21c	376	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	377	return 0;
	378	}
	379
b9a21f84	380	static int adv7170_remove(struct i2c_client *client)
1da177e4	381	{
7d9ef21c HV	382	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	383
	384	v4l2_device_unregister_subdev(sd);
1da177e4 LT	385	return 0;
	386	}
	387
	388	/* ----------------------------------------------------------------------- */
	389
b9a21f84 HV	390	static const struct i2c_device_id adv7170_id[] = {
	391	{ "adv7170", 0 },
	392	{ "adv7171", 0 },
	393	{ }
	394	};
	395	MODULE_DEVICE_TABLE(i2c, adv7170_id);
1da177e4	396
c9611802 HV	397	static struct i2c_driver adv7170_driver = {
c9611802 HV	398	.driver = {
c9611802 HV	399	.name = "adv7170",
	400	},
	401	.probe = adv7170_probe,
	402	.remove = adv7170_remove,
	403	.id_table = adv7170_id,
1da177e4	404	};
c9611802	405
c6e8d86f	406	module_i2c_driver(adv7170_driver);