[net-next-2.6.git] / drivers / media / video / 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.
 *
 * 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 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 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_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_ADV7170, 0);
}

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

static const struct v4l2_subdev_core_ops adv7170_core_ops = {
	.g_chip_ident = adv7170_g_chip_ident,
};

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_ops adv7170_ops = {
	.core = &adv7170_core_ops,
	.video = &adv7170_video_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 = kzalloc(sizeof(struct adv7170), 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);
	kfree(to_adv7170(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 = {
		.owner	= THIS_MODULE,
		.name	= "adv7170",
	},
	.probe		= adv7170_probe,
	.remove		= adv7170_remove,
	.id_table	= adv7170_id,
};

static __init int init_adv7170(void)
{
	return i2c_add_driver(&adv7170_driver);
}

static __exit void exit_adv7170(void)
{
	i2c_del_driver(&adv7170_driver);
}

module_init(init_adv7170);
module_exit(exit_adv7170);
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.
	25	*
	26	* You should have received a copy of the GNU General Public License
	27	* along with this program; if not, write to the Free Software
	28	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	29	*/
	30
	31	#include <linux/module.h>
18f3fa1e	32	#include <linux/types.h>
5a0e3ad6	33	#include <linux/slab.h>
b9a21f84	34	#include <linux/ioctl.h>
18f3fa1e	35	#include <asm/uaccess.h>
b9a21f84	36	#include <linux/i2c.h>
7d9ef21c HV	37	#include <linux/videodev2.h>
	38	#include <media/v4l2-device.h>
	39	#include <media/v4l2-chip-ident.h>
1da177e4 LT	40
	41	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	42	MODULE_AUTHOR("Maxim Yevtyushkin");
	43	MODULE_LICENSE("GPL");
	44
7d9ef21c	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 adv7170 {
7d9ef21c	53	struct v4l2_subdev sd;
1da177e4 LT	54	unsigned char reg[128];
1da177e4 LT	55
107063c6	56	v4l2_std_id norm;
1da177e4	57	int input;
1da177e4 LT	58	};
1da177e4 LT	59
7d9ef21c HV	60	static inline struct adv7170 to_adv7170(struct v4l2_subdev sd)
	61	{
	62	return container_of(sd, struct adv7170, sd);
	63	}
	64
1da177e4	65	static char *inputs[] = { "pass_through", "play_back" };
1da177e4 LT	66
	67	/* ----------------------------------------------------------------------- */
	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
7d9ef21c HV	261	static int adv7170_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	262	{
	263	struct i2c_client *client = v4l2_get_subdevdata(sd);
	264
35631dcc	265	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_ADV7170, 0);
7d9ef21c HV	266	}
7d9ef21c HV	267
1da177e4 LT	268	/* ----------------------------------------------------------------------- */
1da177e4 LT	269
7d9ef21c HV	270	static const struct v4l2_subdev_core_ops adv7170_core_ops = {
7d9ef21c HV	271	.g_chip_ident = adv7170_g_chip_ident,
1da177e4	272	};
1da177e4	273
7d9ef21c HV	274	static const struct v4l2_subdev_video_ops adv7170_video_ops = {
	275	.s_std_output = adv7170_s_std_output,
	276	.s_routing = adv7170_s_routing,
	277	};
	278
	279	static const struct v4l2_subdev_ops adv7170_ops = {
	280	.core = &adv7170_core_ops,
	281	.video = &adv7170_video_ops,
	282	};
	283
	284	/* ----------------------------------------------------------------------- */
d56410e0	285
b9a21f84 HV	286	static int adv7170_probe(struct i2c_client *client,
b9a21f84 HV	287	const struct i2c_device_id *id)
1da177e4	288	{
1da177e4	289	struct adv7170 *encoder;
7d9ef21c	290	struct v4l2_subdev *sd;
b9a21f84	291	int i;
1da177e4 LT	292
1da177e4 LT	293	/* Check if the adapter supports the needed features */
b9a21f84 HV	294	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
b9a21f84 HV	295	return -ENODEV;
1da177e4	296
b9a21f84 HV	297	v4l_info(client, "chip found @ 0x%x (%s)\n",
b9a21f84 HV	298	client->addr << 1, client->adapter->name);
1da177e4	299
7408187d	300	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
b9a21f84	301	if (encoder == NULL)
1da177e4	302	return -ENOMEM;
7d9ef21c HV	303	sd = &encoder->sd;
7d9ef21c HV	304	v4l2_i2c_subdev_init(sd, client, &adv7170_ops);
107063c6	305	encoder->norm = V4L2_STD_NTSC;
1da177e4	306	encoder->input = 0;
1da177e4	307
7d9ef21c	308	i = adv7170_write_block(sd, init_NTSC, sizeof(init_NTSC));
1da177e4	309	if (i >= 0) {
7d9ef21c HV	310	i = adv7170_write(sd, 0x07, TR0MODE \| TR0RST);
	311	i = adv7170_write(sd, 0x07, TR0MODE);
	312	i = adv7170_read(sd, 0x12);
	313	v4l2_dbg(1, debug, sd, "revision %d\n", i & 1);
1da177e4	314	}
b9a21f84	315	if (i < 0)
7d9ef21c	316	v4l2_dbg(1, debug, sd, "init error 0x%x\n", i);
1da177e4 LT	317	return 0;
	318	}
	319
b9a21f84	320	static int adv7170_remove(struct i2c_client *client)
1da177e4	321	{
7d9ef21c HV	322	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	323
	324	v4l2_device_unregister_subdev(sd);
	325	kfree(to_adv7170(sd));
1da177e4 LT	326	return 0;
	327	}
	328
	329	/* ----------------------------------------------------------------------- */
	330
b9a21f84 HV	331	static const struct i2c_device_id adv7170_id[] = {
	332	{ "adv7170", 0 },
	333	{ "adv7171", 0 },
	334	{ }
	335	};
	336	MODULE_DEVICE_TABLE(i2c, adv7170_id);
1da177e4	337
c9611802 HV	338	static struct i2c_driver adv7170_driver = {
	339	.driver = {
	340	.owner = THIS_MODULE,
	341	.name = "adv7170",
	342	},
	343	.probe = adv7170_probe,
	344	.remove = adv7170_remove,
	345	.id_table = adv7170_id,
1da177e4	346	};
c9611802 HV	347
	348	static __init int init_adv7170(void)
	349	{
	350	return i2c_add_driver(&adv7170_driver);
	351	}
	352
	353	static __exit void exit_adv7170(void)
	354	{
	355	i2c_del_driver(&adv7170_driver);
	356	}
	357
	358	module_init(init_adv7170);
	359	module_exit(exit_adv7170);