[linux.git] / drivers / media / video / adv7170.c

/*
 * adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
 *
 * Copyright (C) 2002 Maxim Yevtyushkin <[email protected]>
 *
 * Based on adv7176 driver by:
 *
 * Copyright (C) 1998 Dave Perks <[email protected]>
 * Copyright (C) 1999 Wolfgang Scherr <[email protected]>
 * Copyright (C) 2000 Serguei Miridonov <[email protected]>
 *    - some corrections for Pinnacle Systems Inc. DC10plus card.
 *
 * Changes by Ronald Bultje <[email protected]>
 *    - 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/init.h>
#include <linux/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/signal.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <linux/types.h>

#include <linux/videodev.h>
#include <asm/uaccess.h>

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

#include <linux/i2c.h>

#define I2C_NAME(x) (x)->name

#include <linux/video_encoder.h>

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

#define dprintk(num, format, args...) \
	do { \
		if (debug >= num) \
			printk(format, ##args); \
	} while (0)

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

struct adv7170 {
	unsigned char reg[128];

	int norm;
	int input;
	int enable;
	int bright;
	int contrast;
	int hue;
	int sat;
};

#define   I2C_ADV7170        0xd4
#define   I2C_ADV7171        0x54

static char adv7170_name[] = "adv7170";
static char adv7171_name[] = "adv7171";

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

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

static inline int
adv7170_write (struct i2c_client *client,
	       u8                 reg,
	       u8                 value)
{
	struct adv7170 *encoder = i2c_get_clientdata(client);

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

static inline int
adv7170_read (struct i2c_client *client,
	      u8                 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

static int
adv7170_write_block (struct i2c_client *client,
		     const u8          *data,
		     unsigned int       len)
{
	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 */
		struct adv7170 *encoder = i2c_get_clientdata(client);
		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);
			if ((ret = i2c_master_send(client, block_data,
						   block_len)) < 0)
				break;
		}
	} else {
		/* do some slow I2C emulation kind of thing */
		while (len >= 2) {
			reg = *data++;
			if ((ret = adv7170_write(client, reg,
						 *data++)) < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

/* ----------------------------------------------------------------------- */
// Output filter:  S-Video  Composite

#define MR050       0x11	//0x09
#define MR060       0x14	//0x0c

//---------------------------------------------------------------------------

#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_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void *             arg)
{
	struct adv7170 *encoder = i2c_get_clientdata(client);

	switch (cmd) {

	case 0:
#if 0
		/* This is just for testing!!! */
		adv7170_write_block(client, init_common,
				    sizeof(init_common));
		adv7170_write(client, 0x07, TR0MODE | TR0RST);
		adv7170_write(client, 0x07, TR0MODE);
#endif
		break;

	case ENCODER_GET_CAPABILITIES:
	{
		struct video_encoder_capability *cap = arg;

		cap->flags = VIDEO_ENCODER_PAL |
			     VIDEO_ENCODER_NTSC;
		cap->inputs = 2;
		cap->outputs = 1;
	}
		break;

	case ENCODER_SET_NORM:
	{
		int iarg = *(int *) arg;

		dprintk(1, KERN_DEBUG "%s_command: set norm %d",
			I2C_NAME(client), iarg);

		switch (iarg) {

		case VIDEO_MODE_NTSC:
			adv7170_write_block(client, init_NTSC,
					    sizeof(init_NTSC));
			if (encoder->input == 0)
				adv7170_write(client, 0x02, 0x0e);	// Enable genlock
			adv7170_write(client, 0x07, TR0MODE | TR0RST);
			adv7170_write(client, 0x07, TR0MODE);
			break;

		case VIDEO_MODE_PAL:
			adv7170_write_block(client, init_PAL,
					    sizeof(init_PAL));
			if (encoder->input == 0)
				adv7170_write(client, 0x02, 0x0e);	// Enable genlock
			adv7170_write(client, 0x07, TR0MODE | TR0RST);
			adv7170_write(client, 0x07, TR0MODE);
			break;

		default:
			dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
			       I2C_NAME(client), iarg);
			return -EINVAL;

		}
		dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
			norms[iarg]);
		encoder->norm = iarg;
	}
		break;

	case ENCODER_SET_INPUT:
	{
		int iarg = *(int *) arg;

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

		dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
			I2C_NAME(client),
			iarg == 0 ? "decoder" : "ZR36060");

		switch (iarg) {

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

		case 1:
			adv7170_write(client, 0x01, 0x00);
			adv7170_write(client, 0x08, TR1PLAY);	/* TR1 */
			adv7170_write(client, 0x02, 0x08);
			adv7170_write(client, 0x07, TR0MODE | TR0RST);
			adv7170_write(client, 0x07, TR0MODE);
			//udelay(10);
			break;

		default:
			dprintk(1, KERN_ERR "%s: illegal input: %d\n",
				I2C_NAME(client), iarg);
			return -EINVAL;

		}
		dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
			inputs[iarg]);
		encoder->input = iarg;
	}
		break;

	case ENCODER_SET_OUTPUT:
	{
		int *iarg = arg;

		/* not much choice of outputs */
		if (*iarg != 0) {
			return -EINVAL;
		}
	}
		break;

	case ENCODER_ENABLE_OUTPUT:
	{
		int *iarg = arg;

		encoder->enable = !!*iarg;
	}
		break;

	default:
		return -EINVAL;
	}

	return 0;
}

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

/*
 * Generic i2c probe
 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
 */
static unsigned short normal_i2c[] =
    { I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
	I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
	I2C_CLIENT_END
};

static unsigned short ignore = I2C_CLIENT_END;

static struct i2c_client_address_data addr_data = {
	.normal_i2c		= normal_i2c,
	.probe			= &ignore,
	.ignore			= &ignore,
};

static struct i2c_driver i2c_driver_adv7170;

static int
adv7170_detect_client (struct i2c_adapter *adapter,
		       int                 address,
		       int                 kind)
{
	int i;
	struct i2c_client *client;
	struct adv7170 *encoder;
	char *dname;

	dprintk(1,
		KERN_INFO
		"adv7170.c: detecting adv7170 client on address 0x%x\n",
		address << 1);

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return 0;

	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
	if (client == 0)
		return -ENOMEM;
	client->addr = address;
	client->adapter = adapter;
	client->driver = &i2c_driver_adv7170;
	if ((client->addr == I2C_ADV7170 >> 1) ||
	    (client->addr == (I2C_ADV7170 >> 1) + 1)) {
		dname = adv7170_name;
	} else if ((client->addr == I2C_ADV7171 >> 1) ||
		   (client->addr == (I2C_ADV7171 >> 1) + 1)) {
		dname = adv7171_name;
	} else {
		/* We should never get here!!! */
		kfree(client);
		return 0;
	}
	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));

	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
	if (encoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	encoder->norm = VIDEO_MODE_NTSC;
	encoder->input = 0;
	encoder->enable = 1;
	i2c_set_clientdata(client, encoder);

	i = i2c_attach_client(client);
	if (i) {
		kfree(client);
		kfree(encoder);
		return i;
	}

	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
	if (i >= 0) {
		i = adv7170_write(client, 0x07, TR0MODE | TR0RST);
		i = adv7170_write(client, 0x07, TR0MODE);
		i = adv7170_read(client, 0x12);
		dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
			I2C_NAME(client), i & 1, client->addr << 1);
	}
	if (i < 0) {
		dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
		       I2C_NAME(client), i);
	}

	return 0;
}

static int
adv7170_attach_adapter (struct i2c_adapter *adapter)
{
	dprintk(1,
		KERN_INFO
		"adv7170.c: starting probe for adapter %s (0x%x)\n",
		I2C_NAME(adapter), adapter->id);
	return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
}

static int
adv7170_detach_client (struct i2c_client *client)
{
	struct adv7170 *encoder = i2c_get_clientdata(client);
	int err;

	err = i2c_detach_client(client);
	if (err) {
		return err;
	}

	kfree(encoder);
	kfree(client);

	return 0;
}

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

static struct i2c_driver i2c_driver_adv7170 = {
	.driver = {
		.name = "adv7170",	/* name */
	},

	.id = I2C_DRIVERID_ADV7170,

	.attach_adapter = adv7170_attach_adapter,
	.detach_client = adv7170_detach_client,
	.command = adv7170_command,
};

static int __init
adv7170_init (void)
{
	return i2c_add_driver(&i2c_driver_adv7170);
}

static void __exit
adv7170_exit (void)
{
	i2c_del_driver(&i2c_driver_adv7170);
}

module_init(adv7170_init);
module_exit(adv7170_exit);
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 <[email protected]>
	5	*
d56410e0	6	* Based on adv7176 driver by:
1da177e4 LT	7	*
	8	* Copyright (C) 1998 Dave Perks <[email protected]>
	9	* Copyright (C) 1999 Wolfgang Scherr <[email protected]>
	10	* Copyright (C) 2000 Serguei Miridonov <[email protected]>
	11	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	12	*
	13	* Changes by Ronald Bultje <[email protected]>
	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>
	32	#include <linux/init.h>
	33	#include <linux/delay.h>
	34	#include <linux/errno.h>
	35	#include <linux/fs.h>
	36	#include <linux/kernel.h>
	37	#include <linux/major.h>
	38	#include <linux/slab.h>
	39	#include <linux/mm.h>
	40	#include <linux/pci.h>
	41	#include <linux/signal.h>
	42	#include <asm/io.h>
	43	#include <asm/pgtable.h>
	44	#include <asm/page.h>
1da177e4 LT	45	#include <linux/types.h>
	46
	47	#include <linux/videodev.h>
	48	#include <asm/uaccess.h>
	49
	50	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	51	MODULE_AUTHOR("Maxim Yevtyushkin");
	52	MODULE_LICENSE("GPL");
	53
	54	#include <linux/i2c.h>
1da177e4 LT	55
	56	#define I2C_NAME(x) (x)->name
	57
	58	#include <linux/video_encoder.h>
	59
	60	static int debug = 0;
	61	module_param(debug, int, 0);
	62	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	63
	64	#define dprintk(num, format, args...) \
	65	do { \
	66	if (debug >= num) \
	67	printk(format, ##args); \
	68	} while (0)
	69
	70	/* ----------------------------------------------------------------------- */
	71
	72	struct adv7170 {
	73	unsigned char reg[128];
	74
	75	int norm;
	76	int input;
	77	int enable;
	78	int bright;
	79	int contrast;
	80	int hue;
	81	int sat;
	82	};
	83
	84	#define I2C_ADV7170 0xd4
	85	#define I2C_ADV7171 0x54
	86
	87	static char adv7170_name[] = "adv7170";
	88	static char adv7171_name[] = "adv7171";
	89
	90	static char *inputs[] = { "pass_through", "play_back" };
	91	static char *norms[] = { "PAL", "NTSC" };
	92
	93	/* ----------------------------------------------------------------------- */
	94
	95	static inline int
	96	adv7170_write (struct i2c_client *client,
	97	u8 reg,
	98	u8 value)
	99	{
	100	struct adv7170 *encoder = i2c_get_clientdata(client);
	101
	102	encoder->reg[reg] = value;
	103	return i2c_smbus_write_byte_data(client, reg, value);
	104	}
	105
	106	static inline int
	107	adv7170_read (struct i2c_client *client,
	108	u8 reg)
	109	{
	110	return i2c_smbus_read_byte_data(client, reg);
	111	}
	112
	113	static int
	114	adv7170_write_block (struct i2c_client *client,
	115	const u8 *data,
	116	unsigned int len)
	117	{
	118	int ret = -1;
119	u8 reg;
120
121	/* the adv7170 has an autoincrement function, use it if
122	* the adapter understands raw I2C */
123	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
124	/* do raw I2C, not smbus compatible */
125	struct adv7170 *encoder = i2c_get_clientdata(client);
1da177e4	126	u8 block_data[32];
9aa45e34	127	int block_len;
1da177e4	128
1da177e4	129	while (len >= 2) {
9aa45e34 JD	130	block_len = 0;
9aa45e34 JD	131	block_data[block_len++] = reg = data[0];
1da177e4	132	do {
9aa45e34	133	block_data[block_len++] =
1da177e4 LT	134	encoder->reg[reg++] = data[1];
	135	len -= 2;
	136	data += 2;
	137	} while (len >= 2 && data[0] == reg &&
9aa45e34 JD	138	block_len < 32);
	139	if ((ret = i2c_master_send(client, block_data,
	140	block_len)) < 0)
1da177e4 LT	141	break;
	142	}
	143	} else {
	144	/* do some slow I2C emulation kind of thing */
	145	while (len >= 2) {
	146	reg = *data++;
	147	if ((ret = adv7170_write(client, reg,
	148	*data++)) < 0)
	149	break;
	150	len -= 2;
	151	}
	152	}
	153
	154	return ret;
	155	}
	156
	157	/* ----------------------------------------------------------------------- */
	158	// Output filter: S-Video Composite
	159
	160	#define MR050 0x11 //0x09
	161	#define MR060 0x14 //0x0c
	162
	163	//---------------------------------------------------------------------------
	164
	165	#define TR0MODE 0x4c
	166	#define TR0RST 0x80
	167
	168	#define TR1CAPT 0x00
	169	#define TR1PLAY 0x00
	170
	171
	172	static const unsigned char init_NTSC[] = {
	173	0x00, 0x10, // MR0
	174	0x01, 0x20, // MR1
d56410e0	175	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
1da177e4 LT	176	0x03, 0x80, // MR3
	177	0x04, 0x30, // MR4
	178	0x05, 0x00, // Reserved
	179	0x06, 0x00, // Reserved
	180	0x07, TR0MODE, // TM0
	181	0x08, TR1CAPT, // TM1
	182	0x09, 0x16, // Fsc0
	183	0x0a, 0x7c, // Fsc1
	184	0x0b, 0xf0, // Fsc2
	185	0x0c, 0x21, // Fsc3
	186	0x0d, 0x00, // Subcarrier Phase
	187	0x0e, 0x00, // Closed Capt. Ext 0
	188	0x0f, 0x00, // Closed Capt. Ext 1
	189	0x10, 0x00, // Closed Capt. 0
	190	0x11, 0x00, // Closed Capt. 1
	191	0x12, 0x00, // Pedestal Ctl 0
	192	0x13, 0x00, // Pedestal Ctl 1
	193	0x14, 0x00, // Pedestal Ctl 2
	194	0x15, 0x00, // Pedestal Ctl 3
	195	0x16, 0x00, // CGMS_WSS_0
	196	0x17, 0x00, // CGMS_WSS_1
	197	0x18, 0x00, // CGMS_WSS_2
d56410e0	198	0x19, 0x00, // Teletext Ctl
1da177e4 LT	199	};
	200
	201	static const unsigned char init_PAL[] = {
	202	0x00, 0x71, // MR0
	203	0x01, 0x20, // MR1
	204	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
	205	0x03, 0x80, // MR3
	206	0x04, 0x30, // MR4
	207	0x05, 0x00, // Reserved
	208	0x06, 0x00, // Reserved
	209	0x07, TR0MODE, // TM0
	210	0x08, TR1CAPT, // TM1
	211	0x09, 0xcb, // Fsc0
	212	0x0a, 0x8a, // Fsc1
	213	0x0b, 0x09, // Fsc2
	214	0x0c, 0x2a, // Fsc3
	215	0x0d, 0x00, // Subcarrier Phase
	216	0x0e, 0x00, // Closed Capt. Ext 0
	217	0x0f, 0x00, // Closed Capt. Ext 1
	218	0x10, 0x00, // Closed Capt. 0
	219	0x11, 0x00, // Closed Capt. 1
	220	0x12, 0x00, // Pedestal Ctl 0
	221	0x13, 0x00, // Pedestal Ctl 1
	222	0x14, 0x00, // Pedestal Ctl 2
	223	0x15, 0x00, // Pedestal Ctl 3
	224	0x16, 0x00, // CGMS_WSS_0
	225	0x17, 0x00, // CGMS_WSS_1
	226	0x18, 0x00, // CGMS_WSS_2
	227	0x19, 0x00, // Teletext Ctl
	228	};
	229
	230
	231	static int
	232	adv7170_command (struct i2c_client *client,
	233	unsigned int cmd,
	234	void * arg)
	235	{
	236	struct adv7170 *encoder = i2c_get_clientdata(client);
	237
	238	switch (cmd) {
	239
	240	case 0:
	241	#if 0
	242	/* This is just for testing!!! */
	243	adv7170_write_block(client, init_common,
	244	sizeof(init_common));
	245	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	246	adv7170_write(client, 0x07, TR0MODE);
	247	#endif
	248	break;
	249
	250	case ENCODER_GET_CAPABILITIES:
	251	{
	252	struct video_encoder_capability *cap = arg;
	253
	254	cap->flags = VIDEO_ENCODER_PAL \|
	255	VIDEO_ENCODER_NTSC;
	256	cap->inputs = 2;
	257	cap->outputs = 1;
	258	}
	259	break;
	260
	261	case ENCODER_SET_NORM:
	262	{
263	int iarg = (int ) arg;
264
265	dprintk(1, KERN_DEBUG "%s_command: set norm %d",
266	I2C_NAME(client), iarg);
267
268	switch (iarg) {
269
270	case VIDEO_MODE_NTSC:
271	adv7170_write_block(client, init_NTSC,
272	sizeof(init_NTSC));
273	if (encoder->input == 0)
274	adv7170_write(client, 0x02, 0x0e); // Enable genlock
275	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
276	adv7170_write(client, 0x07, TR0MODE);
277	break;
278
279	case VIDEO_MODE_PAL:
280	adv7170_write_block(client, init_PAL,
281	sizeof(init_PAL));
282	if (encoder->input == 0)
283	adv7170_write(client, 0x02, 0x0e); // Enable genlock
284	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
285	adv7170_write(client, 0x07, TR0MODE);
286	break;
287
288	default:
289	dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
290	I2C_NAME(client), iarg);
291	return -EINVAL;
292
293	}
294	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
295	norms[iarg]);
296	encoder->norm = iarg;
297	}
298	break;
299
300	case ENCODER_SET_INPUT:
301	{
302	int iarg = (int ) arg;
303
304	/* RJ: *iarg = 0: input is from decoder
305	*iarg = 1: input is from ZR36060
306	iarg = 2: color bar /
307
308	dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
309	I2C_NAME(client),
310	iarg == 0 ? "decoder" : "ZR36060");
311
312	switch (iarg) {
313
314	case 0:
315	adv7170_write(client, 0x01, 0x20);
316	adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
317	adv7170_write(client, 0x02, 0x0e); // Enable genlock
318	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
319	adv7170_write(client, 0x07, TR0MODE);
320	//udelay(10);
321	break;
322
323	case 1:
324	adv7170_write(client, 0x01, 0x00);
325	adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
326	adv7170_write(client, 0x02, 0x08);
327	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
328	adv7170_write(client, 0x07, TR0MODE);
329	//udelay(10);
330	break;
331
332	default:
333	dprintk(1, KERN_ERR "%s: illegal input: %d\n",
334	I2C_NAME(client), iarg);
335	return -EINVAL;
336
337	}
338	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
339	inputs[iarg]);
340	encoder->input = iarg;
341	}
342	break;
343
344	case ENCODER_SET_OUTPUT:
345	{
346	int *iarg = arg;
347
348	/* not much choice of outputs */
349	if (*iarg != 0) {
350	return -EINVAL;
351	}
352	}
353	break;
354
355	case ENCODER_ENABLE_OUTPUT:
356	{
357	int *iarg = arg;
358
359	encoder->enable = !!*iarg;
360	}
361	break;
362
363	default:
364	return -EINVAL;
365	}
366
367	return 0;
368	}
369
370	/* ----------------------------------------------------------------------- */
371
372	/*
373	* Generic i2c probe
374	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
375	*/
376	static unsigned short normal_i2c[] =
377	{ I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
378	I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
379	I2C_CLIENT_END
380	};
1da177e4	381
68cc9d0b	382	static unsigned short ignore = I2C_CLIENT_END;
d56410e0	383
1da177e4 LT	384	static struct i2c_client_address_data addr_data = {
1da177e4 LT	385	.normal_i2c = normal_i2c,
68cc9d0b JD	386	.probe = &ignore,
68cc9d0b JD	387	.ignore = &ignore,
1da177e4 LT	388	};
	389
	390	static struct i2c_driver i2c_driver_adv7170;
	391
	392	static int
	393	adv7170_detect_client (struct i2c_adapter *adapter,
	394	int address,
	395	int kind)
	396	{
	397	int i;
	398	struct i2c_client *client;
	399	struct adv7170 *encoder;
	400	char *dname;
	401
	402	dprintk(1,
	403	KERN_INFO
	404	"adv7170.c: detecting adv7170 client on address 0x%x\n",
	405	address << 1);
	406
	407	/* Check if the adapter supports the needed features */
	408	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	409	return 0;
	410
7408187d	411	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
1da177e4 LT	412	if (client == 0)
1da177e4 LT	413	return -ENOMEM;
1da177e4 LT	414	client->addr = address;
	415	client->adapter = adapter;
	416	client->driver = &i2c_driver_adv7170;
1da177e4 LT	417	if ((client->addr == I2C_ADV7170 >> 1) \|\|
	418	(client->addr == (I2C_ADV7170 >> 1) + 1)) {
	419	dname = adv7170_name;
	420	} else if ((client->addr == I2C_ADV7171 >> 1) \|\|
	421	(client->addr == (I2C_ADV7171 >> 1) + 1)) {
	422	dname = adv7171_name;
	423	} else {
	424	/* We should never get here!!! */
	425	kfree(client);
	426	return 0;
	427	}
	428	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
	429
7408187d	430	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
1da177e4 LT	431	if (encoder == NULL) {
	432	kfree(client);
	433	return -ENOMEM;
	434	}
1da177e4 LT	435	encoder->norm = VIDEO_MODE_NTSC;
	436	encoder->input = 0;
	437	encoder->enable = 1;
	438	i2c_set_clientdata(client, encoder);
	439
	440	i = i2c_attach_client(client);
	441	if (i) {
	442	kfree(client);
	443	kfree(encoder);
	444	return i;
	445	}
	446
	447	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
	448	if (i >= 0) {
	449	i = adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	450	i = adv7170_write(client, 0x07, TR0MODE);
	451	i = adv7170_read(client, 0x12);
	452	dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
	453	I2C_NAME(client), i & 1, client->addr << 1);
	454	}
	455	if (i < 0) {
	456	dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
	457	I2C_NAME(client), i);
	458	}
	459
	460	return 0;
	461	}
	462
	463	static int
	464	adv7170_attach_adapter (struct i2c_adapter *adapter)
	465	{
	466	dprintk(1,
	467	KERN_INFO
	468	"adv7170.c: starting probe for adapter %s (0x%x)\n",
	469	I2C_NAME(adapter), adapter->id);
	470	return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
	471	}
	472
	473	static int
	474	adv7170_detach_client (struct i2c_client *client)
	475	{
	476	struct adv7170 *encoder = i2c_get_clientdata(client);
	477	int err;
	478
	479	err = i2c_detach_client(client);
	480	if (err) {
	481	return err;
	482	}
	483
	484	kfree(encoder);
	485	kfree(client);
	486
	487	return 0;
	488	}
	489
	490	/* ----------------------------------------------------------------------- */
	491
	492	static struct i2c_driver i2c_driver_adv7170 = {
604f28e2	493	.driver = {
604f28e2 LR	494	.name = "adv7170", /* name */
604f28e2 LR	495	},
1da177e4 LT	496
1da177e4 LT	497	.id = I2C_DRIVERID_ADV7170,
1da177e4 LT	498
	499	.attach_adapter = adv7170_attach_adapter,
	500	.detach_client = adv7170_detach_client,
	501	.command = adv7170_command,
	502	};
	503
	504	static int __init
	505	adv7170_init (void)
	506	{
	507	return i2c_add_driver(&i2c_driver_adv7170);
	508	}
	509
	510	static void __exit
	511	adv7170_exit (void)
	512	{
	513	i2c_del_driver(&i2c_driver_adv7170);
	514	}
	515
	516	module_init(adv7170_init);
	517	module_exit(adv7170_exit);