[mirror_ubuntu-kernels.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/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/signal.h>
#include <linux/types.h>
#include <linux/i2c.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <asm/uaccess.h>

#include <linux/videodev.h>
#include <linux/video_encoder.h>

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


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


static int debug;
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)
		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 <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>
	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>
1da177e4	40	#include <linux/signal.h>
18f3fa1e MCC	41	#include <linux/types.h>
18f3fa1e MCC	42	#include <linux/i2c.h>
1da177e4 LT	43	#include <asm/io.h>
	44	#include <asm/pgtable.h>
	45	#include <asm/page.h>
18f3fa1e	46	#include <asm/uaccess.h>
1da177e4 LT	47
1da177e4 LT	48	#include <linux/videodev.h>
18f3fa1e	49	#include <linux/video_encoder.h>
1da177e4 LT	50
	51	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	52	MODULE_AUTHOR("Maxim Yevtyushkin");
	53	MODULE_LICENSE("GPL");
	54
1da177e4 LT	55
	56	#define I2C_NAME(x) (x)->name
	57
1da177e4	58
ff699e6b	59	static int debug;
1da177e4 LT	60	module_param(debug, int, 0);
	61	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	62
	63	#define dprintk(num, format, args...) \
	64	do { \
	65	if (debug >= num) \
	66	printk(format, ##args); \
	67	} while (0)
	68
	69	/* ----------------------------------------------------------------------- */
	70
	71	struct adv7170 {
	72	unsigned char reg[128];
	73
	74	int norm;
	75	int input;
	76	int enable;
	77	int bright;
	78	int contrast;
	79	int hue;
	80	int sat;
	81	};
	82
	83	#define I2C_ADV7170 0xd4
	84	#define I2C_ADV7171 0x54
	85
	86	static char adv7170_name[] = "adv7170";
	87	static char adv7171_name[] = "adv7171";
	88
	89	static char *inputs[] = { "pass_through", "play_back" };
	90	static char *norms[] = { "PAL", "NTSC" };
	91
	92	/* ----------------------------------------------------------------------- */
	93
	94	static inline int
	95	adv7170_write (struct i2c_client *client,
	96	u8 reg,
	97	u8 value)
	98	{
	99	struct adv7170 *encoder = i2c_get_clientdata(client);
	100
	101	encoder->reg[reg] = value;
	102	return i2c_smbus_write_byte_data(client, reg, value);
	103	}
	104
	105	static inline int
	106	adv7170_read (struct i2c_client *client,
	107	u8 reg)
	108	{
	109	return i2c_smbus_read_byte_data(client, reg);
	110	}
	111
	112	static int
	113	adv7170_write_block (struct i2c_client *client,
	114	const u8 *data,
	115	unsigned int len)
	116	{
	117	int ret = -1;
	118	u8 reg;
	119
	120	/* the adv7170 has an autoincrement function, use it if
	121	* the adapter understands raw I2C */
	122	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	123	/* do raw I2C, not smbus compatible */
124	struct adv7170 *encoder = i2c_get_clientdata(client);
1da177e4	125	u8 block_data[32];
9aa45e34	126	int block_len;
1da177e4	127
1da177e4	128	while (len >= 2) {
9aa45e34 JD	129	block_len = 0;
9aa45e34 JD	130	block_data[block_len++] = reg = data[0];
1da177e4	131	do {
9aa45e34	132	block_data[block_len++] =
1da177e4 LT	133	encoder->reg[reg++] = data[1];
	134	len -= 2;
	135	data += 2;
	136	} while (len >= 2 && data[0] == reg &&
9aa45e34 JD	137	block_len < 32);
	138	if ((ret = i2c_master_send(client, block_data,
	139	block_len)) < 0)
1da177e4 LT	140	break;
	141	}
	142	} else {
	143	/* do some slow I2C emulation kind of thing */
	144	while (len >= 2) {
	145	reg = *data++;
	146	if ((ret = adv7170_write(client, reg,
	147	*data++)) < 0)
	148	break;
	149	len -= 2;
	150	}
	151	}
	152
	153	return ret;
	154	}
	155
	156	/* ----------------------------------------------------------------------- */
	157	// Output filter: S-Video Composite
	158
	159	#define MR050 0x11 //0x09
	160	#define MR060 0x14 //0x0c
	161
	162	//---------------------------------------------------------------------------
	163
	164	#define TR0MODE 0x4c
	165	#define TR0RST 0x80
	166
	167	#define TR1CAPT 0x00
	168	#define TR1PLAY 0x00
	169
	170
	171	static const unsigned char init_NTSC[] = {
	172	0x00, 0x10, // MR0
	173	0x01, 0x20, // MR1
d56410e0	174	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
1da177e4 LT	175	0x03, 0x80, // MR3
	176	0x04, 0x30, // MR4
	177	0x05, 0x00, // Reserved
	178	0x06, 0x00, // Reserved
	179	0x07, TR0MODE, // TM0
	180	0x08, TR1CAPT, // TM1
	181	0x09, 0x16, // Fsc0
	182	0x0a, 0x7c, // Fsc1
	183	0x0b, 0xf0, // Fsc2
	184	0x0c, 0x21, // Fsc3
	185	0x0d, 0x00, // Subcarrier Phase
	186	0x0e, 0x00, // Closed Capt. Ext 0
	187	0x0f, 0x00, // Closed Capt. Ext 1
	188	0x10, 0x00, // Closed Capt. 0
	189	0x11, 0x00, // Closed Capt. 1
	190	0x12, 0x00, // Pedestal Ctl 0
	191	0x13, 0x00, // Pedestal Ctl 1
	192	0x14, 0x00, // Pedestal Ctl 2
	193	0x15, 0x00, // Pedestal Ctl 3
	194	0x16, 0x00, // CGMS_WSS_0
	195	0x17, 0x00, // CGMS_WSS_1
	196	0x18, 0x00, // CGMS_WSS_2
d56410e0	197	0x19, 0x00, // Teletext Ctl
1da177e4 LT	198	};
	199
	200	static const unsigned char init_PAL[] = {
	201	0x00, 0x71, // MR0
	202	0x01, 0x20, // MR1
	203	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
	204	0x03, 0x80, // MR3
	205	0x04, 0x30, // MR4
	206	0x05, 0x00, // Reserved
	207	0x06, 0x00, // Reserved
	208	0x07, TR0MODE, // TM0
	209	0x08, TR1CAPT, // TM1
	210	0x09, 0xcb, // Fsc0
	211	0x0a, 0x8a, // Fsc1
	212	0x0b, 0x09, // Fsc2
	213	0x0c, 0x2a, // Fsc3
	214	0x0d, 0x00, // Subcarrier Phase
	215	0x0e, 0x00, // Closed Capt. Ext 0
	216	0x0f, 0x00, // Closed Capt. Ext 1
	217	0x10, 0x00, // Closed Capt. 0
	218	0x11, 0x00, // Closed Capt. 1
	219	0x12, 0x00, // Pedestal Ctl 0
	220	0x13, 0x00, // Pedestal Ctl 1
	221	0x14, 0x00, // Pedestal Ctl 2
	222	0x15, 0x00, // Pedestal Ctl 3
	223	0x16, 0x00, // CGMS_WSS_0
	224	0x17, 0x00, // CGMS_WSS_1
	225	0x18, 0x00, // CGMS_WSS_2
	226	0x19, 0x00, // Teletext Ctl
	227	};
	228
	229
	230	static int
	231	adv7170_command (struct i2c_client *client,
	232	unsigned int cmd,
	233	void * arg)
	234	{
	235	struct adv7170 *encoder = i2c_get_clientdata(client);
	236
	237	switch (cmd) {
	238
	239	case 0:
	240	#if 0
	241	/* This is just for testing!!! */
	242	adv7170_write_block(client, init_common,
	243	sizeof(init_common));
	244	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	245	adv7170_write(client, 0x07, TR0MODE);
	246	#endif
	247	break;
	248
	249	case ENCODER_GET_CAPABILITIES:
	250	{
	251	struct video_encoder_capability *cap = arg;
	252
	253	cap->flags = VIDEO_ENCODER_PAL \|
	254	VIDEO_ENCODER_NTSC;
	255	cap->inputs = 2;
	256	cap->outputs = 1;
	257	}
	258	break;
	259
	260	case ENCODER_SET_NORM:
	261	{
262	int iarg = (int ) arg;
263
264	dprintk(1, KERN_DEBUG "%s_command: set norm %d",
265	I2C_NAME(client), iarg);
266
267	switch (iarg) {
268
269	case VIDEO_MODE_NTSC:
270	adv7170_write_block(client, init_NTSC,
271	sizeof(init_NTSC));
272	if (encoder->input == 0)
273	adv7170_write(client, 0x02, 0x0e); // Enable genlock
274	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
275	adv7170_write(client, 0x07, TR0MODE);
276	break;
277
278	case VIDEO_MODE_PAL:
279	adv7170_write_block(client, init_PAL,
280	sizeof(init_PAL));
281	if (encoder->input == 0)
282	adv7170_write(client, 0x02, 0x0e); // Enable genlock
283	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
284	adv7170_write(client, 0x07, TR0MODE);
285	break;
286
287	default:
288	dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
289	I2C_NAME(client), iarg);
290	return -EINVAL;
291
292	}
293	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
294	norms[iarg]);
295	encoder->norm = iarg;
296	}
297	break;
298
299	case ENCODER_SET_INPUT:
300	{
301	int iarg = (int ) arg;
302
303	/* RJ: *iarg = 0: input is from decoder
304	*iarg = 1: input is from ZR36060
305	iarg = 2: color bar /
306
307	dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
308	I2C_NAME(client),
309	iarg == 0 ? "decoder" : "ZR36060");
310
311	switch (iarg) {
312
313	case 0:
314	adv7170_write(client, 0x01, 0x20);
315	adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
316	adv7170_write(client, 0x02, 0x0e); // Enable genlock
317	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
318	adv7170_write(client, 0x07, TR0MODE);
319	//udelay(10);
320	break;
321
322	case 1:
323	adv7170_write(client, 0x01, 0x00);
324	adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
325	adv7170_write(client, 0x02, 0x08);
326	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
327	adv7170_write(client, 0x07, TR0MODE);
328	//udelay(10);
329	break;
330
331	default:
332	dprintk(1, KERN_ERR "%s: illegal input: %d\n",
333	I2C_NAME(client), iarg);
334	return -EINVAL;
335
336	}
337	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
338	inputs[iarg]);
339	encoder->input = iarg;
340	}
341	break;
342
343	case ENCODER_SET_OUTPUT:
344	{
345	int *iarg = arg;
346
347	/* not much choice of outputs */
348	if (*iarg != 0) {
349	return -EINVAL;
350	}
351	}
352	break;
353
354	case ENCODER_ENABLE_OUTPUT:
355	{
356	int *iarg = arg;
357
358	encoder->enable = !!*iarg;
359	}
360	break;
361
362	default:
363	return -EINVAL;
364	}
365
366	return 0;
367	}
368
369	/* ----------------------------------------------------------------------- */
370
371	/*
372	* Generic i2c probe
373	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
374	*/
375	static unsigned short normal_i2c[] =
376	{ I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
377	I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
378	I2C_CLIENT_END
379	};
1da177e4	380
68cc9d0b	381	static unsigned short ignore = I2C_CLIENT_END;
d56410e0	382
1da177e4 LT	383	static struct i2c_client_address_data addr_data = {
1da177e4 LT	384	.normal_i2c = normal_i2c,
68cc9d0b JD	385	.probe = &ignore,
68cc9d0b JD	386	.ignore = &ignore,
1da177e4 LT	387	};
	388
	389	static struct i2c_driver i2c_driver_adv7170;
	390
	391	static int
	392	adv7170_detect_client (struct i2c_adapter *adapter,
	393	int address,
	394	int kind)
	395	{
	396	int i;
	397	struct i2c_client *client;
	398	struct adv7170 *encoder;
	399	char *dname;
	400
	401	dprintk(1,
	402	KERN_INFO
	403	"adv7170.c: detecting adv7170 client on address 0x%x\n",
	404	address << 1);
	405
	406	/* Check if the adapter supports the needed features */
	407	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	408	return 0;
	409
7408187d	410	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
5fa1247a	411	if (!client)
1da177e4	412	return -ENOMEM;
1da177e4 LT	413	client->addr = address;
	414	client->adapter = adapter;
	415	client->driver = &i2c_driver_adv7170;
1da177e4 LT	416	if ((client->addr == I2C_ADV7170 >> 1) \|\|
	417	(client->addr == (I2C_ADV7170 >> 1) + 1)) {
	418	dname = adv7170_name;
	419	} else if ((client->addr == I2C_ADV7171 >> 1) \|\|
	420	(client->addr == (I2C_ADV7171 >> 1) + 1)) {
	421	dname = adv7171_name;
	422	} else {
	423	/* We should never get here!!! */
	424	kfree(client);
	425	return 0;
	426	}
	427	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
	428
7408187d	429	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
1da177e4 LT	430	if (encoder == NULL) {
	431	kfree(client);
	432	return -ENOMEM;
	433	}
1da177e4 LT	434	encoder->norm = VIDEO_MODE_NTSC;
	435	encoder->input = 0;
	436	encoder->enable = 1;
	437	i2c_set_clientdata(client, encoder);
	438
	439	i = i2c_attach_client(client);
	440	if (i) {
	441	kfree(client);
	442	kfree(encoder);
	443	return i;
	444	}
	445
	446	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
	447	if (i >= 0) {
	448	i = adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	449	i = adv7170_write(client, 0x07, TR0MODE);
	450	i = adv7170_read(client, 0x12);
	451	dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
	452	I2C_NAME(client), i & 1, client->addr << 1);
	453	}
	454	if (i < 0) {
	455	dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
	456	I2C_NAME(client), i);
	457	}
	458
	459	return 0;
	460	}
	461
	462	static int
	463	adv7170_attach_adapter (struct i2c_adapter *adapter)
	464	{
	465	dprintk(1,
	466	KERN_INFO
	467	"adv7170.c: starting probe for adapter %s (0x%x)\n",
	468	I2C_NAME(adapter), adapter->id);
	469	return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
	470	}
	471
	472	static int
	473	adv7170_detach_client (struct i2c_client *client)
	474	{
	475	struct adv7170 *encoder = i2c_get_clientdata(client);
	476	int err;
	477
	478	err = i2c_detach_client(client);
	479	if (err) {
	480	return err;
	481	}
	482
	483	kfree(encoder);
	484	kfree(client);
	485
	486	return 0;
	487	}
	488
	489	/* ----------------------------------------------------------------------- */
	490
	491	static struct i2c_driver i2c_driver_adv7170 = {
604f28e2	492	.driver = {
604f28e2 LR	493	.name = "adv7170", /* name */
604f28e2 LR	494	},
1da177e4 LT	495
1da177e4 LT	496	.id = I2C_DRIVERID_ADV7170,
1da177e4 LT	497
	498	.attach_adapter = adv7170_attach_adapter,
	499	.detach_client = adv7170_detach_client,
	500	.command = adv7170_command,
	501	};
	502
	503	static int __init
	504	adv7170_init (void)
	505	{
	506	return i2c_add_driver(&i2c_driver_adv7170);
	507	}
	508
	509	static void __exit
	510	adv7170_exit (void)
	511	{
	512	i2c_del_driver(&i2c_driver_adv7170);
	513	}
	514
	515	module_init(adv7170_init);
	516	module_exit(adv7170_exit);