[mirror_ubuntu-zesty-kernel.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>
#include <linux/i2c-dev.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);
		struct i2c_msg msg;
		u8 block_data[32];

		msg.addr = client->addr;
		msg.flags = 0;
		while (len >= 2) {
			msg.buf = (char *) block_data;
			msg.len = 0;
			block_data[msg.len++] = reg = data[0];
			do {
				block_data[msg.len++] =
				    encoder->reg[reg++] = data[1];
				len -= 2;
				data += 2;
			} while (len >= 2 && data[0] == reg &&
				 msg.len < 32);
			if ((ret = i2c_transfer(client->adapter,
						&msg, 1)) < 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 = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	if (client == 0)
		return -ENOMEM;
	memset(client, 0, sizeof(struct i2c_client));
	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 = kmalloc(sizeof(struct adv7170), GFP_KERNEL);
	if (encoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	memset(encoder, 0, sizeof(struct adv7170));
	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 = {
	.owner = THIS_MODULE,
	.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>
	56	#include <linux/i2c-dev.h>
	57
	58	#define I2C_NAME(x) (x)->name
	59
	60	#include <linux/video_encoder.h>
	61
	62	static int debug = 0;
	63	module_param(debug, int, 0);
	64	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	65
	66	#define dprintk(num, format, args...) \
	67	do { \
	68	if (debug >= num) \
	69	printk(format, ##args); \
	70	} while (0)
	71
	72	/* ----------------------------------------------------------------------- */
	73
	74	struct adv7170 {
	75	unsigned char reg[128];
	76
	77	int norm;
	78	int input;
	79	int enable;
	80	int bright;
	81	int contrast;
	82	int hue;
	83	int sat;
	84	};
	85
	86	#define I2C_ADV7170 0xd4
	87	#define I2C_ADV7171 0x54
	88
	89	static char adv7170_name[] = "adv7170";
	90	static char adv7171_name[] = "adv7171";
	91
	92	static char *inputs[] = { "pass_through", "play_back" };
	93	static char *norms[] = { "PAL", "NTSC" };
	94
	95	/* ----------------------------------------------------------------------- */
	96
	97	static inline int
	98	adv7170_write (struct i2c_client *client,
	99	u8 reg,
	100	u8 value)
	101	{
	102	struct adv7170 *encoder = i2c_get_clientdata(client);
	103
	104	encoder->reg[reg] = value;
	105	return i2c_smbus_write_byte_data(client, reg, value);
	106	}
	107
	108	static inline int
	109	adv7170_read (struct i2c_client *client,
110	u8 reg)
111	{
112	return i2c_smbus_read_byte_data(client, reg);
113	}
114
115	static int
116	adv7170_write_block (struct i2c_client *client,
117	const u8 *data,
118	unsigned int len)
119	{
120	int ret = -1;
121	u8 reg;
122
123	/* the adv7170 has an autoincrement function, use it if
124	* the adapter understands raw I2C */
125	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
126	/* do raw I2C, not smbus compatible */
127	struct adv7170 *encoder = i2c_get_clientdata(client);
128	struct i2c_msg msg;
129	u8 block_data[32];
130
131	msg.addr = client->addr;
132	msg.flags = 0;
133	while (len >= 2) {
134	msg.buf = (char *) block_data;
135	msg.len = 0;
136	block_data[msg.len++] = reg = data[0];
137	do {
138	block_data[msg.len++] =
139	encoder->reg[reg++] = data[1];
140	len -= 2;
141	data += 2;
142	} while (len >= 2 && data[0] == reg &&
143	msg.len < 32);
144	if ((ret = i2c_transfer(client->adapter,
145	&msg, 1)) < 0)
146	break;
147	}
148	} else {
149	/* do some slow I2C emulation kind of thing */
150	while (len >= 2) {
151	reg = *data++;
152	if ((ret = adv7170_write(client, reg,
153	*data++)) < 0)
154	break;
155	len -= 2;
156	}
157	}
158
159	return ret;
160	}
161
162	/* ----------------------------------------------------------------------- */
163	// Output filter: S-Video Composite
164
165	#define MR050 0x11 //0x09
166	#define MR060 0x14 //0x0c
167
168	//---------------------------------------------------------------------------
169
170	#define TR0MODE 0x4c
171	#define TR0RST 0x80
172
173	#define TR1CAPT 0x00
174	#define TR1PLAY 0x00
175
176
177	static const unsigned char init_NTSC[] = {
178	0x00, 0x10, // MR0
179	0x01, 0x20, // MR1
180	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
181	0x03, 0x80, // MR3
182	0x04, 0x30, // MR4
183	0x05, 0x00, // Reserved
184	0x06, 0x00, // Reserved
185	0x07, TR0MODE, // TM0
186	0x08, TR1CAPT, // TM1
187	0x09, 0x16, // Fsc0
188	0x0a, 0x7c, // Fsc1
189	0x0b, 0xf0, // Fsc2
190	0x0c, 0x21, // Fsc3
191	0x0d, 0x00, // Subcarrier Phase
192	0x0e, 0x00, // Closed Capt. Ext 0
193	0x0f, 0x00, // Closed Capt. Ext 1
194	0x10, 0x00, // Closed Capt. 0
195	0x11, 0x00, // Closed Capt. 1
196	0x12, 0x00, // Pedestal Ctl 0
197	0x13, 0x00, // Pedestal Ctl 1
198	0x14, 0x00, // Pedestal Ctl 2
199	0x15, 0x00, // Pedestal Ctl 3
200	0x16, 0x00, // CGMS_WSS_0
201	0x17, 0x00, // CGMS_WSS_1
202	0x18, 0x00, // CGMS_WSS_2
203	0x19, 0x00, // Teletext Ctl
204	};
205
206	static const unsigned char init_PAL[] = {
207	0x00, 0x71, // MR0
208	0x01, 0x20, // MR1
209	0x02, 0x0e, // MR2 RTC control: bits 2 and 1
210	0x03, 0x80, // MR3
211	0x04, 0x30, // MR4
212	0x05, 0x00, // Reserved
213	0x06, 0x00, // Reserved
214	0x07, TR0MODE, // TM0
215	0x08, TR1CAPT, // TM1
216	0x09, 0xcb, // Fsc0
217	0x0a, 0x8a, // Fsc1
218	0x0b, 0x09, // Fsc2
219	0x0c, 0x2a, // Fsc3
220	0x0d, 0x00, // Subcarrier Phase
221	0x0e, 0x00, // Closed Capt. Ext 0
222	0x0f, 0x00, // Closed Capt. Ext 1
223	0x10, 0x00, // Closed Capt. 0
224	0x11, 0x00, // Closed Capt. 1
225	0x12, 0x00, // Pedestal Ctl 0
226	0x13, 0x00, // Pedestal Ctl 1
227	0x14, 0x00, // Pedestal Ctl 2
228	0x15, 0x00, // Pedestal Ctl 3
229	0x16, 0x00, // CGMS_WSS_0
230	0x17, 0x00, // CGMS_WSS_1
231	0x18, 0x00, // CGMS_WSS_2
232	0x19, 0x00, // Teletext Ctl
233	};
234
235
236	static int
237	adv7170_command (struct i2c_client *client,
238	unsigned int cmd,
239	void * arg)
240	{
241	struct adv7170 *encoder = i2c_get_clientdata(client);
242
243	switch (cmd) {
244
245	case 0:
246	#if 0
247	/* This is just for testing!!! */
248	adv7170_write_block(client, init_common,
249	sizeof(init_common));
250	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
251	adv7170_write(client, 0x07, TR0MODE);
252	#endif
253	break;
254
255	case ENCODER_GET_CAPABILITIES:
256	{
257	struct video_encoder_capability *cap = arg;
258
259	cap->flags = VIDEO_ENCODER_PAL \|
260	VIDEO_ENCODER_NTSC;
261	cap->inputs = 2;
262	cap->outputs = 1;
263	}
264	break;
265
266	case ENCODER_SET_NORM:
267	{
268	int iarg = (int ) arg;
269
270	dprintk(1, KERN_DEBUG "%s_command: set norm %d",
271	I2C_NAME(client), iarg);
272
273	switch (iarg) {
274
275	case VIDEO_MODE_NTSC:
276	adv7170_write_block(client, init_NTSC,
277	sizeof(init_NTSC));
278	if (encoder->input == 0)
279	adv7170_write(client, 0x02, 0x0e); // Enable genlock
280	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
281	adv7170_write(client, 0x07, TR0MODE);
282	break;
283
284	case VIDEO_MODE_PAL:
285	adv7170_write_block(client, init_PAL,
286	sizeof(init_PAL));
287	if (encoder->input == 0)
288	adv7170_write(client, 0x02, 0x0e); // Enable genlock
289	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
290	adv7170_write(client, 0x07, TR0MODE);
291	break;
292
293	default:
294	dprintk(1, KERN_ERR "%s: illegal norm: %d\n",
295	I2C_NAME(client), iarg);
296	return -EINVAL;
297
298	}
299	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
300	norms[iarg]);
301	encoder->norm = iarg;
302	}
303	break;
304
305	case ENCODER_SET_INPUT:
306	{
307	int iarg = (int ) arg;
308
309	/* RJ: *iarg = 0: input is from decoder
310	*iarg = 1: input is from ZR36060
311	iarg = 2: color bar /
312
313	dprintk(1, KERN_DEBUG "%s_command: set input from %s\n",
314	I2C_NAME(client),
315	iarg == 0 ? "decoder" : "ZR36060");
316
317	switch (iarg) {
318
319	case 0:
320	adv7170_write(client, 0x01, 0x20);
321	adv7170_write(client, 0x08, TR1CAPT); /* TR1 */
322	adv7170_write(client, 0x02, 0x0e); // Enable genlock
323	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
324	adv7170_write(client, 0x07, TR0MODE);
325	//udelay(10);
326	break;
327
328	case 1:
329	adv7170_write(client, 0x01, 0x00);
330	adv7170_write(client, 0x08, TR1PLAY); /* TR1 */
331	adv7170_write(client, 0x02, 0x08);
332	adv7170_write(client, 0x07, TR0MODE \| TR0RST);
333	adv7170_write(client, 0x07, TR0MODE);
334	//udelay(10);
335	break;
336
337	default:
338	dprintk(1, KERN_ERR "%s: illegal input: %d\n",
339	I2C_NAME(client), iarg);
340	return -EINVAL;
341
342	}
343	dprintk(1, KERN_DEBUG "%s: switched to %s\n", I2C_NAME(client),
344	inputs[iarg]);
345	encoder->input = iarg;
346	}
347	break;
348
349	case ENCODER_SET_OUTPUT:
350	{
351	int *iarg = arg;
352
353	/* not much choice of outputs */
354	if (*iarg != 0) {
355	return -EINVAL;
356	}
357	}
358	break;
359
360	case ENCODER_ENABLE_OUTPUT:
361	{
362	int *iarg = arg;
363
364	encoder->enable = !!*iarg;
365	}
366	break;
367
368	default:
369	return -EINVAL;
370	}
371
372	return 0;
373	}
374
375	/* ----------------------------------------------------------------------- */
376
377	/*
378	* Generic i2c probe
379	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
380	*/
381	static unsigned short normal_i2c[] =
382	{ I2C_ADV7170 >> 1, (I2C_ADV7170 >> 1) + 1,
383	I2C_ADV7171 >> 1, (I2C_ADV7171 >> 1) + 1,
384	I2C_CLIENT_END
385	};
1da177e4	386
68cc9d0b	387	static unsigned short ignore = I2C_CLIENT_END;
1da177e4 LT	388
	389	static struct i2c_client_address_data addr_data = {
	390	.normal_i2c = normal_i2c,
68cc9d0b JD	391	.probe = &ignore,
68cc9d0b JD	392	.ignore = &ignore,
1da177e4 LT	393	};
	394
	395	static struct i2c_driver i2c_driver_adv7170;
	396
	397	static int
	398	adv7170_detect_client (struct i2c_adapter *adapter,
	399	int address,
	400	int kind)
	401	{
	402	int i;
	403	struct i2c_client *client;
	404	struct adv7170 *encoder;
	405	char *dname;
	406
	407	dprintk(1,
	408	KERN_INFO
	409	"adv7170.c: detecting adv7170 client on address 0x%x\n",
	410	address << 1);
	411
	412	/* Check if the adapter supports the needed features */
	413	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	414	return 0;
	415
	416	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	417	if (client == 0)
	418	return -ENOMEM;
	419	memset(client, 0, sizeof(struct i2c_client));
	420	client->addr = address;
	421	client->adapter = adapter;
	422	client->driver = &i2c_driver_adv7170;
1da177e4 LT	423	if ((client->addr == I2C_ADV7170 >> 1) \|\|
	424	(client->addr == (I2C_ADV7170 >> 1) + 1)) {
	425	dname = adv7170_name;
	426	} else if ((client->addr == I2C_ADV7171 >> 1) \|\|
	427	(client->addr == (I2C_ADV7171 >> 1) + 1)) {
	428	dname = adv7171_name;
	429	} else {
	430	/* We should never get here!!! */
	431	kfree(client);
	432	return 0;
	433	}
	434	strlcpy(I2C_NAME(client), dname, sizeof(I2C_NAME(client)));
	435
	436	encoder = kmalloc(sizeof(struct adv7170), GFP_KERNEL);
	437	if (encoder == NULL) {
	438	kfree(client);
	439	return -ENOMEM;
	440	}
	441	memset(encoder, 0, sizeof(struct adv7170));
	442	encoder->norm = VIDEO_MODE_NTSC;
	443	encoder->input = 0;
	444	encoder->enable = 1;
	445	i2c_set_clientdata(client, encoder);
	446
	447	i = i2c_attach_client(client);
	448	if (i) {
	449	kfree(client);
	450	kfree(encoder);
	451	return i;
	452	}
	453
	454	i = adv7170_write_block(client, init_NTSC, sizeof(init_NTSC));
	455	if (i >= 0) {
	456	i = adv7170_write(client, 0x07, TR0MODE \| TR0RST);
	457	i = adv7170_write(client, 0x07, TR0MODE);
	458	i = adv7170_read(client, 0x12);
	459	dprintk(1, KERN_INFO "%s_attach: rev. %d at 0x%02x\n",
	460	I2C_NAME(client), i & 1, client->addr << 1);
	461	}
	462	if (i < 0) {
	463	dprintk(1, KERN_ERR "%s_attach: init error 0x%x\n",
	464	I2C_NAME(client), i);
	465	}
	466
	467	return 0;
	468	}
	469
	470	static int
	471	adv7170_attach_adapter (struct i2c_adapter *adapter)
	472	{
	473	dprintk(1,
	474	KERN_INFO
	475	"adv7170.c: starting probe for adapter %s (0x%x)\n",
	476	I2C_NAME(adapter), adapter->id);
	477	return i2c_probe(adapter, &addr_data, &adv7170_detect_client);
	478	}
	479
	480	static int
	481	adv7170_detach_client (struct i2c_client *client)
	482	{
	483	struct adv7170 *encoder = i2c_get_clientdata(client);
	484	int err;
	485
	486	err = i2c_detach_client(client);
487	if (err) {
488	return err;
489	}
490
491	kfree(encoder);
492	kfree(client);
493
494	return 0;
495	}
496
497	/* ----------------------------------------------------------------------- */
498
499	static struct i2c_driver i2c_driver_adv7170 = {
500	.owner = THIS_MODULE,
501	.name = "adv7170", /* name */
502
503	.id = I2C_DRIVERID_ADV7170,
1da177e4 LT	504
	505	.attach_adapter = adv7170_attach_adapter,
	506	.detach_client = adv7170_detach_client,
	507	.command = adv7170_command,
	508	};
	509
	510	static int __init
	511	adv7170_init (void)
	512	{
	513	return i2c_add_driver(&i2c_driver_adv7170);
	514	}
	515
	516	static void __exit
	517	adv7170_exit (void)
	518	{
	519	i2c_del_driver(&i2c_driver_adv7170);
	520	}
	521
	522	module_init(adv7170_init);
	523	module_exit(adv7170_exit);