[thirdparty/kernel/stable.git] / drivers / media / i2c / adv7170.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * 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)
 */

#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
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
d56410e0	2	/*
1da177e4 LT	3	* adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
	4	*
	5	* Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
	6	*
d56410e0	7	* Based on adv7176 driver by:
1da177e4 LT	8	*
	9	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	10	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	11	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	12	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	13	*
	14	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	15	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
1da177e4 LT	16	*/
	17
	18	#include <linux/module.h>
18f3fa1e	19	#include <linux/types.h>
5a0e3ad6	20	#include <linux/slab.h>
b9a21f84	21	#include <linux/ioctl.h>
7c0f6ba6	22	#include <linux/uaccess.h>
b9a21f84	23	#include <linux/i2c.h>
7d9ef21c HV	24	#include <linux/videodev2.h>
7d9ef21c HV	25	#include <media/v4l2-device.h>
1da177e4 LT	26
	27	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	28	MODULE_AUTHOR("Maxim Yevtyushkin");
	29	MODULE_LICENSE("GPL");
	30
7d9ef21c	31
ff699e6b	32	static int debug;
1da177e4 LT	33	module_param(debug, int, 0);
	34	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	35
1da177e4 LT	36	/* ----------------------------------------------------------------------- */
	37
	38	struct adv7170 {
7d9ef21c	39	struct v4l2_subdev sd;
1da177e4 LT	40	unsigned char reg[128];
1da177e4 LT	41
107063c6	42	v4l2_std_id norm;
1da177e4	43	int input;
1da177e4 LT	44	};
1da177e4 LT	45
7d9ef21c HV	46	static inline struct adv7170 to_adv7170(struct v4l2_subdev sd)
	47	{
	48	return container_of(sd, struct adv7170, sd);
	49	}
	50
1da177e4	51	static char *inputs[] = { "pass_through", "play_back" };
1da177e4	52
f5fe58fd BB	53	static u32 adv7170_codes[] = {
	54	MEDIA_BUS_FMT_UYVY8_2X8,
	55	MEDIA_BUS_FMT_UYVY8_1X16,
0d37d350 CG	56	};
0d37d350 CG	57
1da177e4 LT	58	/* ----------------------------------------------------------------------- */
1da177e4 LT	59
7d9ef21c	60	static inline int adv7170_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	61	{
7d9ef21c HV	62	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	63	struct adv7170 *encoder = to_adv7170(sd);
1da177e4 LT	64
	65	encoder->reg[reg] = value;
	66	return i2c_smbus_write_byte_data(client, reg, value);
	67	}
	68
7d9ef21c	69	static inline int adv7170_read(struct v4l2_subdev *sd, u8 reg)
1da177e4	70	{
7d9ef21c HV	71	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	72
1da177e4 LT	73	return i2c_smbus_read_byte_data(client, reg);
	74	}
	75
7d9ef21c	76	static int adv7170_write_block(struct v4l2_subdev *sd,
b9a21f84	77	const u8 *data, unsigned int len)
1da177e4	78	{
7d9ef21c HV	79	struct i2c_client *client = v4l2_get_subdevdata(sd);
7d9ef21c HV	80	struct adv7170 *encoder = to_adv7170(sd);
1da177e4 LT	81	int ret = -1;
	82	u8 reg;
	83
	84	/* the adv7170 has an autoincrement function, use it if
	85	* the adapter understands raw I2C */
	86	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	87	/* do raw I2C, not smbus compatible */
1da177e4	88	u8 block_data[32];
9aa45e34	89	int block_len;
1da177e4	90
1da177e4	91	while (len >= 2) {
9aa45e34 JD	92	block_len = 0;
9aa45e34 JD	93	block_data[block_len++] = reg = data[0];
1da177e4	94	do {
9aa45e34	95	block_data[block_len++] =
1da177e4 LT	96	encoder->reg[reg++] = data[1];
	97	len -= 2;
	98	data += 2;
b9a21f84 HV	99	} while (len >= 2 && data[0] == reg && block_len < 32);
	100	ret = i2c_master_send(client, block_data, block_len);
	101	if (ret < 0)
1da177e4 LT	102	break;
	103	}
	104	} else {
	105	/* do some slow I2C emulation kind of thing */
	106	while (len >= 2) {
	107	reg = *data++;
7d9ef21c	108	ret = adv7170_write(sd, reg, *data++);
b9a21f84	109	if (ret < 0)
1da177e4 LT	110	break;
	111	len -= 2;
	112	}
	113	}
1da177e4 LT	114	return ret;
	115	}
	116
	117	/* ----------------------------------------------------------------------- */
1da177e4 LT	118
	119	#define TR0MODE 0x4c
	120	#define TR0RST 0x80
	121
	122	#define TR1CAPT 0x00
	123	#define TR1PLAY 0x00
	124
1da177e4	125	static const unsigned char init_NTSC[] = {
7d9ef21c HV	126	0x00, 0x10, /* MR0 */
	127	0x01, 0x20, /* MR1 */
	128	0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */
	129	0x03, 0x80, /* MR3 */
	130	0x04, 0x30, /* MR4 */
	131	0x05, 0x00, /* Reserved */
	132	0x06, 0x00, /* Reserved */
	133	0x07, TR0MODE, /* TM0 */
	134	0x08, TR1CAPT, /* TM1 */
	135	0x09, 0x16, /* Fsc0 */
	136	0x0a, 0x7c, /* Fsc1 */
	137	0x0b, 0xf0, /* Fsc2 */
	138	0x0c, 0x21, /* Fsc3 */
	139	0x0d, 0x00, /* Subcarrier Phase */
	140	0x0e, 0x00, /* Closed Capt. Ext 0 */
	141	0x0f, 0x00, /* Closed Capt. Ext 1 */
	142	0x10, 0x00, /* Closed Capt. 0 */
	143	0x11, 0x00, /* Closed Capt. 1 */
	144	0x12, 0x00, /* Pedestal Ctl 0 */
	145	0x13, 0x00, /* Pedestal Ctl 1 */
	146	0x14, 0x00, /* Pedestal Ctl 2 */
	147	0x15, 0x00, /* Pedestal Ctl 3 */
	148	0x16, 0x00, /* CGMS_WSS_0 */
	149	0x17, 0x00, /* CGMS_WSS_1 */
	150	0x18, 0x00, /* CGMS_WSS_2 */
	151	0x19, 0x00, /* Teletext Ctl */
1da177e4 LT	152	};
	153
	154	static const unsigned char init_PAL[] = {
7d9ef21c HV	155	0x00, 0x71, /* MR0 */
	156	0x01, 0x20, /* MR1 */
	157	0x02, 0x0e, /* MR2 RTC control: bits 2 and 1 */
	158	0x03, 0x80, /* MR3 */
	159	0x04, 0x30, /* MR4 */
	160	0x05, 0x00, /* Reserved */
	161	0x06, 0x00, /* Reserved */
	162	0x07, TR0MODE, /* TM0 */
	163	0x08, TR1CAPT, /* TM1 */
	164	0x09, 0xcb, /* Fsc0 */
	165	0x0a, 0x8a, /* Fsc1 */
	166	0x0b, 0x09, /* Fsc2 */
	167	0x0c, 0x2a, /* Fsc3 */
	168	0x0d, 0x00, /* Subcarrier Phase */
	169	0x0e, 0x00, /* Closed Capt. Ext 0 */
	170	0x0f, 0x00, /* Closed Capt. Ext 1 */
	171	0x10, 0x00, /* Closed Capt. 0 */
	172	0x11, 0x00, /* Closed Capt. 1 */
	173	0x12, 0x00, /* Pedestal Ctl 0 */
	174	0x13, 0x00, /* Pedestal Ctl 1 */
	175	0x14, 0x00, /* Pedestal Ctl 2 */
	176	0x15, 0x00, /* Pedestal Ctl 3 */
	177	0x16, 0x00, /* CGMS_WSS_0 */
	178	0x17, 0x00, /* CGMS_WSS_1 */
	179	0x18, 0x00, /* CGMS_WSS_2 */
	180	0x19, 0x00, /* Teletext Ctl */
1da177e4 LT	181	};
	182
	183
7d9ef21c	184	static int adv7170_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
1da177e4	185	{
7d9ef21c HV	186	struct adv7170 *encoder = to_adv7170(sd);
7d9ef21c HV	187
cc5cef8e	188	v4l2_dbg(1, debug, sd, "set norm %llx\n", (unsigned long long)std);
7d9ef21c HV	189
	190	if (std & V4L2_STD_NTSC) {
	191	adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
	192	if (encoder->input == 0)
	193	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	194	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	195	adv7170_write(sd, 0x07, TR0MODE);
	196	} else if (std & V4L2_STD_PAL) {
	197	adv7170_write_block(sd, init_PAL, sizeof(init_PAL));
	198	if (encoder->input == 0)
	199	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	200	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	201	adv7170_write(sd, 0x07, TR0MODE);
	202	} else {
cc5cef8e HV	203	v4l2_dbg(1, debug, sd, "illegal norm: %llx\n",
cc5cef8e HV	204	(unsigned long long)std);
7d9ef21c	205	return -EINVAL;
b9a21f84	206	}
cc5cef8e	207	v4l2_dbg(1, debug, sd, "switched to %llx\n", (unsigned long long)std);
7d9ef21c HV	208	encoder->norm = std;
	209	return 0;
	210	}
1da177e4	211
5325b427 HV	212	static int adv7170_s_routing(struct v4l2_subdev *sd,
5325b427 HV	213	u32 input, u32 output, u32 config)
7d9ef21c HV	214	{
7d9ef21c HV	215	struct adv7170 *encoder = to_adv7170(sd);
1da177e4	216
5325b427 HV	217	/* RJ: input = 0: input is from decoder
	218	input = 1: input is from ZR36060
	219	input = 2: color bar */
1da177e4	220
7d9ef21c	221	v4l2_dbg(1, debug, sd, "set input from %s\n",
5325b427	222	input == 0 ? "decoder" : "ZR36060");
1da177e4	223
5325b427	224	switch (input) {
7d9ef21c HV	225	case 0:
	226	adv7170_write(sd, 0x01, 0x20);
	227	adv7170_write(sd, 0x08, TR1CAPT); /* TR1 */
	228	adv7170_write(sd, 0x02, 0x0e); /* Enable genlock */
	229	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	230	adv7170_write(sd, 0x07, TR0MODE);
	231	/* udelay(10); */
	232	break;
	233
	234	case 1:
	235	adv7170_write(sd, 0x01, 0x00);
	236	adv7170_write(sd, 0x08, TR1PLAY); /* TR1 */
	237	adv7170_write(sd, 0x02, 0x08);
	238	adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	239	adv7170_write(sd, 0x07, TR0MODE);
	240	/* udelay(10); */
1da177e4 LT	241	break;
	242
	243	default:
5325b427	244	v4l2_dbg(1, debug, sd, "illegal input: %d\n", input);
1da177e4 LT	245	return -EINVAL;
1da177e4 LT	246	}
5325b427 HV	247	v4l2_dbg(1, debug, sd, "switched to %s\n", inputs[input]);
5325b427 HV	248	encoder->input = input;
1da177e4 LT	249	return 0;
	250	}
	251
ebcff5fc HV	252	static int adv7170_enum_mbus_code(struct v4l2_subdev *sd,
	253	struct v4l2_subdev_pad_config *cfg,
	254	struct v4l2_subdev_mbus_code_enum *code)
0d37d350	255	{
ebcff5fc	256	if (code->pad \|\| code->index >= ARRAY_SIZE(adv7170_codes))
0d37d350 CG	257	return -EINVAL;
0d37d350 CG	258
ebcff5fc	259	code->code = adv7170_codes[code->index];
0d37d350 CG	260	return 0;
	261	}
	262
da298c6d HV	263	static int adv7170_get_fmt(struct v4l2_subdev *sd,
	264	struct v4l2_subdev_pad_config *cfg,
	265	struct v4l2_subdev_format *format)
0d37d350	266	{
da298c6d	267	struct v4l2_mbus_framefmt *mf = &format->format;
0d37d350 CG	268	u8 val = adv7170_read(sd, 0x7);
0d37d350 CG	269
da298c6d HV	270	if (format->pad)
	271	return -EINVAL;
	272
0d37d350	273	if ((val & 0x40) == (1 << 6))
f5fe58fd	274	mf->code = MEDIA_BUS_FMT_UYVY8_1X16;
0d37d350	275	else
f5fe58fd	276	mf->code = MEDIA_BUS_FMT_UYVY8_2X8;
0d37d350 CG	277
	278	mf->colorspace = V4L2_COLORSPACE_SMPTE170M;
	279	mf->width = 0;
	280	mf->height = 0;
	281	mf->field = V4L2_FIELD_ANY;
	282
	283	return 0;
	284	}
	285
6e80c473 HV	286	static int adv7170_set_fmt(struct v4l2_subdev *sd,
	287	struct v4l2_subdev_pad_config *cfg,
	288	struct v4l2_subdev_format *format)
0d37d350	289	{
6e80c473	290	struct v4l2_mbus_framefmt *mf = &format->format;
0d37d350	291	u8 val = adv7170_read(sd, 0x7);
6e80c473 HV	292
	293	if (format->pad)
	294	return -EINVAL;
0d37d350 CG	295
0d37d350 CG	296	switch (mf->code) {
f5fe58fd	297	case MEDIA_BUS_FMT_UYVY8_2X8:
0d37d350 CG	298	val &= ~0x40;
	299	break;
	300
f5fe58fd	301	case MEDIA_BUS_FMT_UYVY8_1X16:
0d37d350 CG	302	val \|= 0x40;
	303	break;
	304
	305	default:
	306	v4l2_dbg(1, debug, sd,
	307	"illegal v4l2_mbus_framefmt code: %d\n", mf->code);
	308	return -EINVAL;
	309	}
	310
6e80c473	311	if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE)
5f98e5f5	312	return adv7170_write(sd, 0x7, val);
0d37d350	313
5f98e5f5	314	return 0;
0d37d350 CG	315	}
0d37d350 CG	316
1da177e4 LT	317	/* ----------------------------------------------------------------------- */
1da177e4 LT	318
7d9ef21c HV	319	static const struct v4l2_subdev_video_ops adv7170_video_ops = {
	320	.s_std_output = adv7170_s_std_output,
	321	.s_routing = adv7170_s_routing,
ebcff5fc HV	322	};
	323
	324	static const struct v4l2_subdev_pad_ops adv7170_pad_ops = {
	325	.enum_mbus_code = adv7170_enum_mbus_code,
da298c6d	326	.get_fmt = adv7170_get_fmt,
6e80c473	327	.set_fmt = adv7170_set_fmt,
7d9ef21c HV	328	};
	329
	330	static const struct v4l2_subdev_ops adv7170_ops = {
7d9ef21c	331	.video = &adv7170_video_ops,
ebcff5fc	332	.pad = &adv7170_pad_ops,
7d9ef21c HV	333	};
	334
	335	/* ----------------------------------------------------------------------- */
d56410e0	336
b9a21f84 HV	337	static int adv7170_probe(struct i2c_client *client,
b9a21f84 HV	338	const struct i2c_device_id *id)
1da177e4	339	{
1da177e4	340	struct adv7170 *encoder;
7d9ef21c	341	struct v4l2_subdev *sd;
b9a21f84	342	int i;
1da177e4 LT	343
1da177e4 LT	344	/* Check if the adapter supports the needed features */
b9a21f84 HV	345	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
b9a21f84 HV	346	return -ENODEV;
1da177e4	347
b9a21f84 HV	348	v4l_info(client, "chip found @ 0x%x (%s)\n",
b9a21f84 HV	349	client->addr << 1, client->adapter->name);
1da177e4	350
c02b211d	351	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
b9a21f84	352	if (encoder == NULL)
1da177e4	353	return -ENOMEM;
7d9ef21c HV	354	sd = &encoder->sd;
7d9ef21c HV	355	v4l2_i2c_subdev_init(sd, client, &adv7170_ops);
107063c6	356	encoder->norm = V4L2_STD_NTSC;
1da177e4	357	encoder->input = 0;
1da177e4	358
7d9ef21c	359	i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
1da177e4	360	if (i >= 0) {
7d9ef21c HV	361	i = adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	362	i = adv7170_write(sd, 0x07, TR0MODE);
	363	i = adv7170_read(sd, 0x12);
	364	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	365	}
b9a21f84	366	if (i < 0)
7d9ef21c	367	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	368	return 0;
	369	}
	370
b9a21f84	371	static int adv7170_remove(struct i2c_client *client)
1da177e4	372	{
7d9ef21c HV	373	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	374
	375	v4l2_device_unregister_subdev(sd);
1da177e4 LT	376	return 0;
	377	}
	378
	379	/* ----------------------------------------------------------------------- */
	380
b9a21f84 HV	381	static const struct i2c_device_id adv7170_id[] = {
	382	{ "adv7170", 0 },
	383	{ "adv7171", 0 },
	384	{ }
	385	};
	386	MODULE_DEVICE_TABLE(i2c, adv7170_id);
1da177e4	387
c9611802 HV	388	static struct i2c_driver adv7170_driver = {
c9611802 HV	389	.driver = {
c9611802 HV	390	.name = "adv7170",
	391	},
	392	.probe = adv7170_probe,
	393	.remove = adv7170_remove,
	394	.id_table = adv7170_id,
1da177e4	395	};
c9611802	396
c6e8d86f	397	module_i2c_driver(adv7170_driver);