[GitHub/mt8127/android_kernel_alcatel_ttab.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/pci.h>
#include <linux/signal.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <linux/sched.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
1da177e4 LT	1	/*
	2	* adv7170 - adv7170, adv7171 video encoder driver version 0.0.1
	3	*
	4	* Copyright (C) 2002 Maxim Yevtyushkin <max@linuxmedialabs.com>
	5	*
	6	* Based on adv7176 driver by:
	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>
	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>
	45	#include <linux/sched.h>
1da177e4 LT	46	#include <linux/types.h>
	47
	48	#include <linux/videodev.h>
	49	#include <asm/uaccess.h>
	50
	51	MODULE_DESCRIPTION("Analog Devices ADV7170 video encoder driver");
	52	MODULE_AUTHOR("Maxim Yevtyushkin");
	53	MODULE_LICENSE("GPL");
	54
	55	#include <linux/i2c.h>
1da177e4 LT	56
	57	#define I2C_NAME(x) (x)->name
	58
	59	#include <linux/video_encoder.h>
	60
	61	static int debug = 0;
	62	module_param(debug, int, 0);
	63	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	64
	65	#define dprintk(num, format, args...) \
	66	do { \
	67	if (debug >= num) \
	68	printk(format, ##args); \
	69	} while (0)
	70
	71	/* ----------------------------------------------------------------------- */
	72
	73	struct adv7170 {
	74	unsigned char reg[128];
	75
	76	int norm;
	77	int input;
	78	int enable;
	79	int bright;
	80	int contrast;
	81	int hue;
	82	int sat;
	83	};
	84
	85	#define I2C_ADV7170 0xd4
	86	#define I2C_ADV7171 0x54
	87
	88	static char adv7170_name[] = "adv7170";
	89	static char adv7171_name[] = "adv7171";
	90
	91	static char *inputs[] = { "pass_through", "play_back" };
	92	static char *norms[] = { "PAL", "NTSC" };
	93
	94	/* ----------------------------------------------------------------------- */
	95
	96	static inline int
	97	adv7170_write (struct i2c_client *client,
	98	u8 reg,
	99	u8 value)
	100	{
	101	struct adv7170 *encoder = i2c_get_clientdata(client);
	102
	103	encoder->reg[reg] = value;
	104	return i2c_smbus_write_byte_data(client, reg, value);
	105	}
	106
	107	static inline int
	108	adv7170_read (struct i2c_client *client,
	109	u8 reg)
	110	{
	111	return i2c_smbus_read_byte_data(client, reg);
	112	}
	113
	114	static int
	115	adv7170_write_block (struct i2c_client *client,
	116	const u8 *data,
	117	unsigned int len)
	118	{
	119	int ret = -1;
120	u8 reg;
121
122	/* the adv7170 has an autoincrement function, use it if
123	* the adapter understands raw I2C */
124	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
125	/* do raw I2C, not smbus compatible */
126	struct adv7170 *encoder = i2c_get_clientdata(client);
1da177e4	127	u8 block_data[32];
9aa45e34	128	int block_len;
1da177e4	129
1da177e4	130	while (len >= 2) {
9aa45e34 JD	131	block_len = 0;
9aa45e34 JD	132	block_data[block_len++] = reg = data[0];
1da177e4	133	do {
9aa45e34	134	block_data[block_len++] =
1da177e4 LT	135	encoder->reg[reg++] = data[1];
	136	len -= 2;
	137	data += 2;
	138	} while (len >= 2 && data[0] == reg &&
9aa45e34 JD	139	block_len < 32);
	140	if ((ret = i2c_master_send(client, block_data,
	141	block_len)) < 0)
1da177e4 LT	142	break;
	143	}
	144	} else {
	145	/* do some slow I2C emulation kind of thing */
	146	while (len >= 2) {
	147	reg = *data++;
	148	if ((ret = adv7170_write(client, reg,
	149	*data++)) < 0)
	150	break;
	151	len -= 2;
	152	}
	153	}
	154
	155	return ret;
	156	}
	157
	158	/* ----------------------------------------------------------------------- */
	159	// Output filter: S-Video Composite
	160
	161	#define MR050 0x11 //0x09
	162	#define MR060 0x14 //0x0c
	163
	164	//---------------------------------------------------------------------------
	165
	166	#define TR0MODE 0x4c
	167	#define TR0RST 0x80
	168
	169	#define TR1CAPT 0x00
	170	#define TR1PLAY 0x00
	171
	172
	173	static const unsigned char init_NTSC[] = {
	174	0x00, 0x10, // MR0
	175	0x01, 0x20, // MR1
	176	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
	177	0x03, 0x80, // MR3
	178	0x04, 0x30, // MR4
	179	0x05, 0x00, // Reserved
	180	0x06, 0x00, // Reserved
	181	0x07, TR0MODE, // TM0
	182	0x08, TR1CAPT, // TM1
	183	0x09, 0x16, // Fsc0
	184	0x0a, 0x7c, // Fsc1
	185	0x0b, 0xf0, // Fsc2
	186	0x0c, 0x21, // Fsc3
	187	0x0d, 0x00, // Subcarrier Phase
	188	0x0e, 0x00, // Closed Capt. Ext 0
	189	0x0f, 0x00, // Closed Capt. Ext 1
	190	0x10, 0x00, // Closed Capt. 0
	191	0x11, 0x00, // Closed Capt. 1
	192	0x12, 0x00, // Pedestal Ctl 0
	193	0x13, 0x00, // Pedestal Ctl 1
	194	0x14, 0x00, // Pedestal Ctl 2
	195	0x15, 0x00, // Pedestal Ctl 3
	196	0x16, 0x00, // CGMS_WSS_0
	197	0x17, 0x00, // CGMS_WSS_1
	198	0x18, 0x00, // CGMS_WSS_2
	199	0x19, 0x00, // Teletext Ctl
	200	};
	201
	202	static const unsigned char init_PAL[] = {
	203	0x00, 0x71, // MR0
	204	0x01, 0x20, // MR1
	205	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
206	0x03, 0x80, // MR3
207	0x04, 0x30, // MR4
208	0x05, 0x00, // Reserved
209	0x06, 0x00, // Reserved
210	0x07, TR0MODE, // TM0
211	0x08, TR1CAPT, // TM1
212	0x09, 0xcb, // Fsc0
213	0x0a, 0x8a, // Fsc1
214	0x0b, 0x09, // Fsc2
215	0x0c, 0x2a, // Fsc3
216	0x0d, 0x00, // Subcarrier Phase
217	0x0e, 0x00, // Closed Capt. Ext 0
218	0x0f, 0x00, // Closed Capt. Ext 1
219	0x10, 0x00, // Closed Capt. 0
220	0x11, 0x00, // Closed Capt. 1
221	0x12, 0x00, // Pedestal Ctl 0
222	0x13, 0x00, // Pedestal Ctl 1
223	0x14, 0x00, // Pedestal Ctl 2
224	0x15, 0x00, // Pedestal Ctl 3
225	0x16, 0x00, // CGMS_WSS_0
226	0x17, 0x00, // CGMS_WSS_1
227	0x18, 0x00, // CGMS_WSS_2
228	0x19, 0x00, // Teletext Ctl
229	};
230
231
232	static int
233	adv7170_command (struct i2c_client *client,
234	unsigned int cmd,
235	void * arg)
236	{
237	struct adv7170 *encoder = i2c_get_clientdata(client);
238
239	switch (cmd) {
240
241	case 0:
242	#if 0
243	/* This is just for testing!!! */
244	adv7170_write_block(client, init_common,
245	sizeof(init_common));
246	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
247	adv7170_write(client, 0x07, TR0MODE);
248	#endif
249	break;
250
251	case ENCODER_GET_CAPABILITIES:
252	{
253	struct video_encoder_capability *cap = arg;
254
255	cap->flags = VIDEO_ENCODER_PAL \|
256	VIDEO_ENCODER_NTSC;
257	cap->inputs = 2;
258	cap->outputs = 1;
259	}
260	break;
261
262	case ENCODER_SET_NORM:
263	{
264	int iarg = (int ) arg;
265
266	dprintk(1, KERN_DEBUG "%s_command: set norm %d",
267	I2C_NAME(client), iarg);
268
269	switch (iarg) {
270
271	case VIDEO_MODE_NTSC:
272	adv7170_write_block(client, init_NTSC,
273	sizeof(init_NTSC));
274	if (encoder->input == 0)
275	adv7170_write(client, 0x02, 0x0e); // Enable genlock
276	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
277	adv7170_write(client, 0x07, TR0MODE);
278	break;
279
280	case VIDEO_MODE_PAL:
281	adv7170_write_block(client, init_PAL,
282	sizeof(init_PAL));
283	if (encoder->input == 0)
284	adv7170_write(client, 0x02, 0x0e); // Enable genlock
285	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
286	adv7170_write(client, 0x07, TR0MODE);
287	break;
288
289	default:
290	dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
291	I2C_NAME(client), iarg);
292	return -EINVAL;
293
294	}
295	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
296	norms[iarg]);
297	encoder->norm = iarg;
298	}
299	break;
300
301	case ENCODER_SET_INPUT:
302	{
303	int iarg = (int ) arg;
304
305	/* RJ: *iarg = 0: input is from decoder
306	*iarg = 1: input is from ZR36060
307	iarg = 2: color bar /
308
309	dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
310	I2C_NAME(client),
311	iarg == 0 ? "decoder" : "ZR36060");
312
313	switch (iarg) {
314
315	case 0:
316	adv7170_write(client, 0x01, 0x20);
317	adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
318	adv7170_write(client, 0x02, 0x0e); // Enable genlock
319	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
320	adv7170_write(client, 0x07, TR0MODE);
321	//udelay(10);
322	break;
323
324	case 1:
325	adv7170_write(client, 0x01, 0x00);
326	adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
327	adv7170_write(client, 0x02, 0x08);
328	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
329	adv7170_write(client, 0x07, TR0MODE);
330	//udelay(10);
331	break;
332
333	default:
334	dprintk(1, KERN_ERR "%s: illegal input: %d\n",
335	I2C_NAME(client), iarg);
336	return -EINVAL;
337
338	}
339	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
340	inputs[iarg]);
341	encoder->input = iarg;
342	}
343	break;
344
345	case ENCODER_SET_OUTPUT:
346	{
347	int *iarg = arg;
348
349	/* not much choice of outputs */
350	if (*iarg != 0) {
351	return -EINVAL;
352	}
353	}
354	break;
355
356	case ENCODER_ENABLE_OUTPUT:
357	{
358	int *iarg = arg;
359
360	encoder->enable = !!*iarg;
361	}
362	break;
363
364	default:
365	return -EINVAL;
366	}
367
368	return 0;
369	}
370
371	/* ----------------------------------------------------------------------- */
372
373	/*
374	* Generic i2c probe
375	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
376	*/
377	static unsigned short normal_i2c[] =
378	{ I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
379	I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
380	I2C_CLIENT_END
381	};
1da177e4	382
68cc9d0b	383	static unsigned short ignore = I2C_CLIENT_END;
1da177e4 LT	384
	385	static struct i2c_client_address_data addr_data = {
	386	.normal_i2c = normal_i2c,
68cc9d0b JD	387	.probe = &ignore,
68cc9d0b JD	388	.ignore = &ignore,
1da177e4 LT	389	};
	390
	391	static struct i2c_driver i2c_driver_adv7170;
	392
	393	static int
	394	adv7170_detect_client (struct i2c_adapter *adapter,
	395	int address,
	396	int kind)
	397	{
	398	int i;
	399	struct i2c_client *client;
	400	struct adv7170 *encoder;
	401	char *dname;
	402
	403	dprintk(1,
	404	KERN_INFO
	405	"adv7170.c: detecting adv7170 client on address 0x%x\n",
	406	address << 1);
	407
	408	/* Check if the adapter supports the needed features */
	409	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	410	return 0;
	411
7408187d	412	client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
1da177e4 LT	413	if (client == 0)
1da177e4 LT	414	return -ENOMEM;
1da177e4 LT	415	client->addr = address;
	416	client->adapter = adapter;
	417	client->driver = &i2c_driver_adv7170;
1da177e4 LT	418	if ((client->addr == I2C_ADV7170 >> 1) \|\|
	419	(client->addr == (I2C_ADV7170 >> 1) + 1)) {
	420	dname = adv7170_name;
	421	} else if ((client->addr == I2C_ADV7171 >> 1) \|\|
	422	(client->addr == (I2C_ADV7171 >> 1) + 1)) {
	423	dname = adv7171_name;
	424	} else {
	425	/* We should never get here!!! */
	426	kfree(client);
	427	return 0;
	428	}
	429	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
	430
7408187d	431	encoder = kzalloc(sizeof(struct adv7170), GFP_KERNEL);
1da177e4 LT	432	if (encoder == NULL) {
	433	kfree(client);
	434	return -ENOMEM;
	435	}
1da177e4 LT	436	encoder->norm = VIDEO_MODE_NTSC;
	437	encoder->input = 0;
	438	encoder->enable = 1;
	439	i2c_set_clientdata(client, encoder);
	440
	441	i = i2c_attach_client(client);
	442	if (i) {
	443	kfree(client);
	444	kfree(encoder);
	445	return i;
	446	}
	447
	448	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
	449	if (i >= 0) {
	450	i = adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	451	i = adv7170_write(client, 0x07, TR0MODE);
	452	i = adv7170_read(client, 0x12);
	453	dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
	454	I2C_NAME(client), i & 1, client->addr << 1);
	455	}
	456	if (i < 0) {
	457	dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
	458	I2C_NAME(client), i);
	459	}
	460
	461	return 0;
	462	}
	463
	464	static int
	465	adv7170_attach_adapter (struct i2c_adapter *adapter)
	466	{
	467	dprintk(1,
	468	KERN_INFO
	469	"adv7170.c: starting probe for adapter %s (0x%x)\n",
	470	I2C_NAME(adapter), adapter->id);
	471	return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
	472	}
	473
	474	static int
	475	adv7170_detach_client (struct i2c_client *client)
	476	{
	477	struct adv7170 *encoder = i2c_get_clientdata(client);
	478	int err;
	479
	480	err = i2c_detach_client(client);
	481	if (err) {
	482	return err;
	483	}
	484
	485	kfree(encoder);
	486	kfree(client);
	487
	488	return 0;
	489	}
	490
	491	/* ----------------------------------------------------------------------- */
	492
	493	static struct i2c_driver i2c_driver_adv7170 = {
604f28e2	494	.driver = {
604f28e2 LR	495	.name = "adv7170", /* name */
604f28e2 LR	496	},
1da177e4 LT	497
1da177e4 LT	498	.id = I2C_DRIVERID_ADV7170,
1da177e4 LT	499
	500	.attach_adapter = adv7170_attach_adapter,
	501	.detach_client = adv7170_detach_client,
	502	.command = adv7170_command,
	503	};
	504
	505	static int __init
	506	adv7170_init (void)
	507	{
	508	return i2c_add_driver(&i2c_driver_adv7170);
	509	}
	510
	511	static void __exit
	512	adv7170_exit (void)
	513	{
	514	i2c_del_driver(&i2c_driver_adv7170);
	515	}
	516
	517	module_init(adv7170_init);
	518	module_exit(adv7170_exit);