[mirror_ubuntu-jammy-kernel.git] / drivers / media / video / saa7110.c

/*
 * saa7110 - Philips SAA7110(A) video decoder driver
 *
 * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
 *
 * 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/types.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/wait.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev.h>
#include <linux/video_decoder.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>

MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
MODULE_AUTHOR("Pauline Middelink");
MODULE_LICENSE("GPL");

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

#define SAA7110_MAX_INPUT	9	/* 6 CVBS, 3 SVHS */
#define SAA7110_MAX_OUTPUT	0	/* its a decoder only */

#define SAA7110_NR_REG		0x35

struct saa7110 {
	u8 reg[SAA7110_NR_REG];

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

	wait_queue_head_t wq;
};

/* ----------------------------------------------------------------------- */
/* I2C support functions						   */
/* ----------------------------------------------------------------------- */

static int saa7110_write(struct i2c_client *client, u8 reg, u8 value)
{
	struct saa7110 *decoder = i2c_get_clientdata(client);

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

static int saa7110_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
{
	int ret = -1;
	u8 reg = *data;		/* first register to write to */

	/* Sanity check */
	if (reg + (len - 1) > SAA7110_NR_REG)
		return ret;

	/* the saa7110 has an autoincrement function, use it if
	 * the adapter understands raw I2C */
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
		struct saa7110 *decoder = i2c_get_clientdata(client);

		ret = i2c_master_send(client, data, len);

		/* Cache the written data */
		memcpy(decoder->reg + reg, data + 1, len - 1);
	} else {
		for (++data, --len; len; len--) {
			ret = saa7110_write(client, reg++, *data++);
			if (ret < 0)
				break;
		}
	}

	return ret;
}

static inline int saa7110_read(struct i2c_client *client)
{
	return i2c_smbus_read_byte(client);
}

/* ----------------------------------------------------------------------- */
/* SAA7110 functions							   */
/* ----------------------------------------------------------------------- */

#define FRESP_06H_COMPST 0x03	//0x13
#define FRESP_06H_SVIDEO 0x83	//0xC0


static int saa7110_selmux(struct i2c_client *client, int chan)
{
	static const unsigned char modes[9][8] = {
		/* mode 0 */
		{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
			      0x44, 0x75, 0x16},
		/* mode 1 */
		{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
			      0x44, 0x75, 0x16},
		/* mode 2 */
		{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
			      0x60, 0xB5, 0x05},
		/* mode 3 */
		{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
			      0x60, 0xB5, 0x05},
		/* mode 4 */
		{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
			      0x60, 0xB5, 0x03},
		/* mode 5 */
		{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
			      0x60, 0xB5, 0x03},
		/* mode 6 */
		{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
			      0x44, 0x75, 0x12},
		/* mode 7 */
		{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
			      0x60, 0xB5, 0x14},
		/* mode 8 */
		{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
			      0x44, 0x75, 0x21}
	};
	struct saa7110 *decoder = i2c_get_clientdata(client);
	const unsigned char *ptr = modes[chan];

	saa7110_write(client, 0x06, ptr[0]);	/* Luminance control    */
	saa7110_write(client, 0x20, ptr[1]);	/* Analog Control #1    */
	saa7110_write(client, 0x21, ptr[2]);	/* Analog Control #2    */
	saa7110_write(client, 0x22, ptr[3]);	/* Mixer Control #1     */
	saa7110_write(client, 0x2C, ptr[4]);	/* Mixer Control #2     */
	saa7110_write(client, 0x30, ptr[5]);	/* ADCs gain control    */
	saa7110_write(client, 0x31, ptr[6]);	/* Mixer Control #3     */
	saa7110_write(client, 0x21, ptr[7]);	/* Analog Control #2    */
	decoder->input = chan;

	return 0;
}

static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
};

static int determine_norm(struct i2c_client *client)
{
	DEFINE_WAIT(wait);
	struct saa7110 *decoder = i2c_get_clientdata(client);
	int status;

	/* mode changed, start automatic detection */
	saa7110_write_block(client, initseq, sizeof(initseq));
	saa7110_selmux(client, decoder->input);
	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
	schedule_timeout(msecs_to_jiffies(250));
	finish_wait(&decoder->wq, &wait);
	status = saa7110_read(client);
	if (status & 0x40) {
		v4l_dbg(1, debug, client, "status=0x%02x (no signal)\n", status);
		return decoder->norm;	// no change
	}
	if ((status & 3) == 0) {
		saa7110_write(client, 0x06, 0x83);
		if (status & 0x20) {
			v4l_dbg(1, debug, client, "status=0x%02x (NTSC/no color)\n", status);
			//saa7110_write(client,0x2E,0x81);
			return VIDEO_MODE_NTSC;
		}
		v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
		//saa7110_write(client,0x2E,0x9A);
		return VIDEO_MODE_PAL;
	}
	//saa7110_write(client,0x06,0x03);
	if (status & 0x20) {	/* 60Hz */
		v4l_dbg(1, debug, client, "status=0x%02x (NTSC)\n", status);
		saa7110_write(client, 0x0D, 0x86);
		saa7110_write(client, 0x0F, 0x50);
		saa7110_write(client, 0x11, 0x2C);
		//saa7110_write(client,0x2E,0x81);
		return VIDEO_MODE_NTSC;
	}

	/* 50Hz -> PAL/SECAM */
	saa7110_write(client, 0x0D, 0x86);
	saa7110_write(client, 0x0F, 0x10);
	saa7110_write(client, 0x11, 0x59);
	//saa7110_write(client,0x2E,0x9A);

	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
	schedule_timeout(msecs_to_jiffies(250));
	finish_wait(&decoder->wq, &wait);

	status = saa7110_read(client);
	if ((status & 0x03) == 0x01) {
		v4l_dbg(1, debug, client, "status=0x%02x (SECAM)\n", status);
		saa7110_write(client, 0x0D, 0x87);
		return VIDEO_MODE_SECAM;
	}
	v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
	return VIDEO_MODE_PAL;
}

static int
saa7110_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa7110 *decoder = i2c_get_clientdata(client);
	int v;

	switch (cmd) {
	case 0:
		//saa7110_write_block(client, initseq, sizeof(initseq));
		break;

	case DECODER_GET_CAPABILITIES:
	{
		struct video_decoder_capability *dc = arg;

		dc->flags =
		    VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
		    VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
		dc->inputs = SAA7110_MAX_INPUT;
		dc->outputs = SAA7110_MAX_OUTPUT;
		break;
	}

	case DECODER_GET_STATUS:
	{
		int status;
		int res = 0;

		status = saa7110_read(client);
		v4l_dbg(1, debug, client, "status=0x%02x norm=%d\n",
			       status, decoder->norm);
		if (!(status & 0x40))
			res |= DECODER_STATUS_GOOD;
		if (status & 0x03)
			res |= DECODER_STATUS_COLOR;

		switch (decoder->norm) {
		case VIDEO_MODE_NTSC:
			res |= DECODER_STATUS_NTSC;
			break;
		case VIDEO_MODE_PAL:
			res |= DECODER_STATUS_PAL;
			break;
		case VIDEO_MODE_SECAM:
			res |= DECODER_STATUS_SECAM;
			break;
		}
		*(int *) arg = res;
		break;
	}

	case DECODER_SET_NORM:
		v = *(int *) arg;
		if (decoder->norm != v) {
			decoder->norm = v;
			//saa7110_write(client, 0x06, 0x03);
			switch (v) {
			case VIDEO_MODE_NTSC:
				saa7110_write(client, 0x0D, 0x86);
				saa7110_write(client, 0x0F, 0x50);
				saa7110_write(client, 0x11, 0x2C);
				//saa7110_write(client, 0x2E, 0x81);
				v4l_dbg(1, debug, client, "switched to NTSC\n");
				break;
			case VIDEO_MODE_PAL:
				saa7110_write(client, 0x0D, 0x86);
				saa7110_write(client, 0x0F, 0x10);
				saa7110_write(client, 0x11, 0x59);
				//saa7110_write(client, 0x2E, 0x9A);
				v4l_dbg(1, debug, client, "switched to PAL\n");
				break;
			case VIDEO_MODE_SECAM:
				saa7110_write(client, 0x0D, 0x87);
				saa7110_write(client, 0x0F, 0x10);
				saa7110_write(client, 0x11, 0x59);
				//saa7110_write(client, 0x2E, 0x9A);
				v4l_dbg(1, debug, client, "switched to SECAM\n");
				break;
			case VIDEO_MODE_AUTO:
				v4l_dbg(1, debug, client, "switched to AUTO\n");
				decoder->norm = determine_norm(client);
				*(int *) arg = decoder->norm;
				break;
			default:
				return -EPERM;
			}
		}
		break;

	case DECODER_SET_INPUT:
		v = *(int *) arg;
		if (v < 0 || v > SAA7110_MAX_INPUT) {
			v4l_dbg(1, debug, client, "input=%d not available\n", v);
			return -EINVAL;
		}
		if (decoder->input != v) {
			saa7110_selmux(client, v);
			v4l_dbg(1, debug, client, "switched to input=%d\n", v);
		}
		break;

	case DECODER_SET_OUTPUT:
		v = *(int *) arg;
		/* not much choice of outputs */
		if (v != 0)
			return -EINVAL;
		break;

	case DECODER_ENABLE_OUTPUT:
		v = *(int *) arg;
		if (decoder->enable != v) {
			decoder->enable = v;
			saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
			v4l_dbg(1, debug, client, "YUV %s\n", v ? "on" : "off");
		}
		break;

	case DECODER_SET_PICTURE:
	{
		struct video_picture *pic = arg;

		if (decoder->bright != pic->brightness) {
			/* We want 0 to 255 we get 0-65535 */
			decoder->bright = pic->brightness;
			saa7110_write(client, 0x19, decoder->bright >> 8);
		}
		if (decoder->contrast != pic->contrast) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->contrast = pic->contrast;
			saa7110_write(client, 0x13,
				      decoder->contrast >> 9);
		}
		if (decoder->sat != pic->colour) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->sat = pic->colour;
			saa7110_write(client, 0x12, decoder->sat >> 9);
		}
		if (decoder->hue != pic->hue) {
			/* We want -128 to 127 we get 0-65535 */
			decoder->hue = pic->hue;
			saa7110_write(client, 0x07,
				      (decoder->hue >> 8) - 128);
		}
		break;
	}

	case DECODER_DUMP:
		if (!debug)
			break;
		for (v = 0; v < SAA7110_NR_REG; v += 16) {
			int j;
			v4l_dbg(1, debug, client, "%02x:", v);
			for (j = 0; j < 16 && v + j < SAA7110_NR_REG; j++)
				printk(KERN_CONT " %02x", decoder->reg[v + j]);
			printk(KERN_CONT "\n");
		}
		break;

	default:
		v4l_dbg(1, debug, client, "unknown command %08x\n", cmd);
		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[] = { 0x9c >> 1, 0x9e >> 1, I2C_CLIENT_END };

I2C_CLIENT_INSMOD;

static int saa7110_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct saa7110 *decoder;
	int rv;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter,
		I2C_FUNC_SMBUS_READ_BYTE | I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
		return -ENODEV;

	v4l_info(client, "chip found @ 0x%x (%s)\n",
			client->addr << 1, client->adapter->name);

	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
	if (!decoder)
		return -ENOMEM;
	decoder->norm = VIDEO_MODE_PAL;
	decoder->input = 0;
	decoder->enable = 1;
	decoder->bright = 32768;
	decoder->contrast = 32768;
	decoder->hue = 32768;
	decoder->sat = 32768;
	init_waitqueue_head(&decoder->wq);
	i2c_set_clientdata(client, decoder);

	rv = saa7110_write_block(client, initseq, sizeof(initseq));
	if (rv < 0) {
		v4l_dbg(1, debug, client, "init status %d\n", rv);
	} else {
		int ver, status;
		saa7110_write(client, 0x21, 0x10);
		saa7110_write(client, 0x0e, 0x18);
		saa7110_write(client, 0x0D, 0x04);
		ver = saa7110_read(client);
		saa7110_write(client, 0x0D, 0x06);
		//mdelay(150);
		status = saa7110_read(client);
		v4l_dbg(1, debug, client, "version %x, status=0x%02x\n",
			       ver, status);
		saa7110_write(client, 0x0D, 0x86);
		saa7110_write(client, 0x0F, 0x10);
		saa7110_write(client, 0x11, 0x59);
		//saa7110_write(client, 0x2E, 0x9A);
	}

	//saa7110_selmux(client,0);
	//determine_norm(client);
	/* setup and implicit mode 0 select has been performed */

	return 0;
}

static int saa7110_remove(struct i2c_client *client)
{
	kfree(i2c_get_clientdata(client));
	return 0;
}

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

static const struct i2c_device_id saa7110_id[] = {
	{ "saa7110", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, saa7110_id);

static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "saa7110",
	.driverid = I2C_DRIVERID_SAA7110,
	.command = saa7110_command,
	.probe = saa7110_probe,
	.remove = saa7110_remove,
	.id_table = saa7110_id,
};
Commit	Line	Data
1da177e4 LT	1	/*
	2	* saa7110 - Philips SAA7110(A) video decoder driver
	3	*
	4	* Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
	5	*
	6	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	7	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	8	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	9	*
	10	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	11	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
	23	* You should have received a copy of the GNU General Public License
	24	* along with this program; if not, write to the Free Software
	25	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	26	*/
	27
	28	#include <linux/module.h>
	29	#include <linux/init.h>
	30	#include <linux/types.h>
	31	#include <linux/delay.h>
	32	#include <linux/slab.h>
	33	#include <linux/wait.h>
1da177e4	34	#include <asm/uaccess.h>
85ede69f HV	35	#include <linux/i2c.h>
	36	#include <linux/videodev.h>
	37	#include <linux/video_decoder.h>
	38	#include <media/v4l2-common.h>
	39	#include <media/v4l2-i2c-drv-legacy.h>
1da177e4 LT	40
	41	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	42	MODULE_AUTHOR("Pauline Middelink");
	43	MODULE_LICENSE("GPL");
	44
ff699e6b	45	static int debug;
1da177e4 LT	46	module_param(debug, int, 0);
	47	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	48
1da177e4 LT	49	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
	50	#define SAA7110_MAX_OUTPUT 0 /* its a decoder only */
	51
1da177e4 LT	52	#define SAA7110_NR_REG 0x35
	53
	54	struct saa7110 {
	55	u8 reg[SAA7110_NR_REG];
	56
	57	int norm;
	58	int input;
	59	int enable;
	60	int bright;
	61	int contrast;
	62	int hue;
	63	int sat;
	64
	65	wait_queue_head_t wq;
	66	};
	67
	68	/* ----------------------------------------------------------------------- */
	69	/* I2C support functions */
	70	/* ----------------------------------------------------------------------- */
	71
85ede69f	72	static int saa7110_write(struct i2c_client *client, u8 reg, u8 value)
1da177e4 LT	73	{
	74	struct saa7110 *decoder = i2c_get_clientdata(client);
	75
	76	decoder->reg[reg] = value;
	77	return i2c_smbus_write_byte_data(client, reg, value);
	78	}
	79
85ede69f	80	static int saa7110_write_block(struct i2c_client client, const u8 data, unsigned int len)
1da177e4 LT	81	{
	82	int ret = -1;
	83	u8 reg = data; / first register to write to */
	84
	85	/* Sanity check */
	86	if (reg + (len - 1) > SAA7110_NR_REG)
	87	return ret;
	88
	89	/* the saa7110 has an autoincrement function, use it if
	90	* the adapter understands raw I2C */
	91	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	92	struct saa7110 *decoder = i2c_get_clientdata(client);
1da177e4	93
9aa45e34	94	ret = i2c_master_send(client, data, len);
1da177e4 LT	95
	96	/* Cache the written data */
	97	memcpy(decoder->reg + reg, data + 1, len - 1);
	98	} else {
	99	for (++data, --len; len; len--) {
85ede69f HV	100	ret = saa7110_write(client, reg++, *data++);
85ede69f HV	101	if (ret < 0)
1da177e4 LT	102	break;
	103	}
	104	}
	105
	106	return ret;
	107	}
	108
85ede69f	109	static inline int saa7110_read(struct i2c_client *client)
1da177e4 LT	110	{
	111	return i2c_smbus_read_byte(client);
	112	}
	113
	114	/* ----------------------------------------------------------------------- */
	115	/* SAA7110 functions */
	116	/* ----------------------------------------------------------------------- */
	117
	118	#define FRESP_06H_COMPST 0x03 //0x13
	119	#define FRESP_06H_SVIDEO 0x83 //0xC0
	120
	121
85ede69f	122	static int saa7110_selmux(struct i2c_client *client, int chan)
1da177e4 LT	123	{
	124	static const unsigned char modes[9][8] = {
	125	/* mode 0 */
	126	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	127	0x44, 0x75, 0x16},
	128	/* mode 1 */
	129	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	130	0x44, 0x75, 0x16},
	131	/* mode 2 */
	132	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	133	0x60, 0xB5, 0x05},
	134	/* mode 3 */
	135	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	136	0x60, 0xB5, 0x05},
	137	/* mode 4 */
	138	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	139	0x60, 0xB5, 0x03},
	140	/* mode 5 */
	141	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	142	0x60, 0xB5, 0x03},
	143	/* mode 6 */
	144	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	145	0x44, 0x75, 0x12},
	146	/* mode 7 */
	147	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	148	0x60, 0xB5, 0x14},
	149	/* mode 8 */
	150	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	151	0x44, 0x75, 0x21}
	152	};
	153	struct saa7110 *decoder = i2c_get_clientdata(client);
	154	const unsigned char *ptr = modes[chan];
	155
	156	saa7110_write(client, 0x06, ptr[0]); /* Luminance control */
	157	saa7110_write(client, 0x20, ptr[1]); /* Analog Control #1 */
	158	saa7110_write(client, 0x21, ptr[2]); /* Analog Control #2 */
	159	saa7110_write(client, 0x22, ptr[3]); /* Mixer Control #1 */
	160	saa7110_write(client, 0x2C, ptr[4]); /* Mixer Control #2 */
	161	saa7110_write(client, 0x30, ptr[5]); /* ADCs gain control */
	162	saa7110_write(client, 0x31, ptr[6]); /* Mixer Control #3 */
	163	saa7110_write(client, 0x21, ptr[7]); /* Analog Control #2 */
	164	decoder->input = chan;
	165
	166	return 0;
	167	}
	168
	169	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	170	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	171	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	172	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	173	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	174	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	175	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	176	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	177	};
	178
85ede69f	179	static int determine_norm(struct i2c_client *client)
1da177e4 LT	180	{
	181	DEFINE_WAIT(wait);
	182	struct saa7110 *decoder = i2c_get_clientdata(client);
	183	int status;
	184
	185	/* mode changed, start automatic detection */
	186	saa7110_write_block(client, initseq, sizeof(initseq));
	187	saa7110_selmux(client, decoder->input);
	188	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	189	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	190	finish_wait(&decoder->wq, &wait);
	191	status = saa7110_read(client);
	192	if (status & 0x40) {
85ede69f	193	v4l_dbg(1, debug, client, "status=0x%02x (no signal)\n", status);
1da177e4 LT	194	return decoder->norm; // no change
	195	}
	196	if ((status & 3) == 0) {
	197	saa7110_write(client, 0x06, 0x83);
	198	if (status & 0x20) {
85ede69f	199	v4l_dbg(1, debug, client, "status=0x%02x (NTSC/no color)\n", status);
1da177e4 LT	200	//saa7110_write(client,0x2E,0x81);
	201	return VIDEO_MODE_NTSC;
	202	}
85ede69f	203	v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
1da177e4 LT	204	//saa7110_write(client,0x2E,0x9A);
	205	return VIDEO_MODE_PAL;
	206	}
	207	//saa7110_write(client,0x06,0x03);
	208	if (status & 0x20) { /* 60Hz */
85ede69f	209	v4l_dbg(1, debug, client, "status=0x%02x (NTSC)\n", status);
1da177e4 LT	210	saa7110_write(client, 0x0D, 0x86);
	211	saa7110_write(client, 0x0F, 0x50);
	212	saa7110_write(client, 0x11, 0x2C);
	213	//saa7110_write(client,0x2E,0x81);
	214	return VIDEO_MODE_NTSC;
	215	}
	216
	217	/* 50Hz -> PAL/SECAM */
	218	saa7110_write(client, 0x0D, 0x86);
	219	saa7110_write(client, 0x0F, 0x10);
	220	saa7110_write(client, 0x11, 0x59);
	221	//saa7110_write(client,0x2E,0x9A);
	222
	223	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	224	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	225	finish_wait(&decoder->wq, &wait);
	226
	227	status = saa7110_read(client);
	228	if ((status & 0x03) == 0x01) {
85ede69f	229	v4l_dbg(1, debug, client, "status=0x%02x (SECAM)\n", status);
1da177e4 LT	230	saa7110_write(client, 0x0D, 0x87);
	231	return VIDEO_MODE_SECAM;
	232	}
85ede69f	233	v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
1da177e4 LT	234	return VIDEO_MODE_PAL;
	235	}
	236
	237	static int
	238	saa7110_command (struct i2c_client *client,
	239	unsigned int cmd,
	240	void *arg)
	241	{
	242	struct saa7110 *decoder = i2c_get_clientdata(client);
	243	int v;
	244
	245	switch (cmd) {
	246	case 0:
	247	//saa7110_write_block(client, initseq, sizeof(initseq));
	248	break;
	249
	250	case DECODER_GET_CAPABILITIES:
	251	{
	252	struct video_decoder_capability *dc = arg;
	253
	254	dc->flags =
	255	VIDEO_DECODER_PAL \| VIDEO_DECODER_NTSC \|
	256	VIDEO_DECODER_SECAM \| VIDEO_DECODER_AUTO;
	257	dc->inputs = SAA7110_MAX_INPUT;
	258	dc->outputs = SAA7110_MAX_OUTPUT;
1da177e4	259	break;
85ede69f	260	}
1da177e4 LT	261
	262	case DECODER_GET_STATUS:
	263	{
	264	int status;
	265	int res = 0;
	266
	267	status = saa7110_read(client);
85ede69f HV	268	v4l_dbg(1, debug, client, "status=0x%02x norm=%d\n",
85ede69f HV	269	status, decoder->norm);
1da177e4 LT	270	if (!(status & 0x40))
	271	res \|= DECODER_STATUS_GOOD;
	272	if (status & 0x03)
	273	res \|= DECODER_STATUS_COLOR;
	274
	275	switch (decoder->norm) {
	276	case VIDEO_MODE_NTSC:
	277	res \|= DECODER_STATUS_NTSC;
	278	break;
	279	case VIDEO_MODE_PAL:
	280	res \|= DECODER_STATUS_PAL;
	281	break;
	282	case VIDEO_MODE_SECAM:
	283	res \|= DECODER_STATUS_SECAM;
	284	break;
	285	}
	286	(int ) arg = res;
1da177e4	287	break;
85ede69f	288	}
1da177e4 LT	289
	290	case DECODER_SET_NORM:
	291	v = (int ) arg;
	292	if (decoder->norm != v) {
	293	decoder->norm = v;
	294	//saa7110_write(client, 0x06, 0x03);
	295	switch (v) {
	296	case VIDEO_MODE_NTSC:
	297	saa7110_write(client, 0x0D, 0x86);
	298	saa7110_write(client, 0x0F, 0x50);
	299	saa7110_write(client, 0x11, 0x2C);
	300	//saa7110_write(client, 0x2E, 0x81);
85ede69f	301	v4l_dbg(1, debug, client, "switched to NTSC\n");
1da177e4 LT	302	break;
	303	case VIDEO_MODE_PAL:
	304	saa7110_write(client, 0x0D, 0x86);
	305	saa7110_write(client, 0x0F, 0x10);
	306	saa7110_write(client, 0x11, 0x59);
	307	//saa7110_write(client, 0x2E, 0x9A);
85ede69f	308	v4l_dbg(1, debug, client, "switched to PAL\n");
1da177e4 LT	309	break;
	310	case VIDEO_MODE_SECAM:
	311	saa7110_write(client, 0x0D, 0x87);
	312	saa7110_write(client, 0x0F, 0x10);
	313	saa7110_write(client, 0x11, 0x59);
	314	//saa7110_write(client, 0x2E, 0x9A);
85ede69f	315	v4l_dbg(1, debug, client, "switched to SECAM\n");
1da177e4 LT	316	break;
1da177e4 LT	317	case VIDEO_MODE_AUTO:
85ede69f	318	v4l_dbg(1, debug, client, "switched to AUTO\n");
1da177e4 LT	319	decoder->norm = determine_norm(client);
	320	(int ) arg = decoder->norm;
	321	break;
	322	default:
	323	return -EPERM;
	324	}
	325	}
	326	break;
	327
	328	case DECODER_SET_INPUT:
	329	v = (int ) arg;
	330	if (v < 0 \|\| v > SAA7110_MAX_INPUT) {
85ede69f	331	v4l_dbg(1, debug, client, "input=%d not available\n", v);
1da177e4 LT	332	return -EINVAL;
	333	}
	334	if (decoder->input != v) {
	335	saa7110_selmux(client, v);
85ede69f	336	v4l_dbg(1, debug, client, "switched to input=%d\n", v);
1da177e4 LT	337	}
	338	break;
	339
	340	case DECODER_SET_OUTPUT:
	341	v = (int ) arg;
	342	/* not much choice of outputs */
	343	if (v != 0)
	344	return -EINVAL;
	345	break;
	346
	347	case DECODER_ENABLE_OUTPUT:
	348	v = (int ) arg;
	349	if (decoder->enable != v) {
	350	decoder->enable = v;
	351	saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
85ede69f	352	v4l_dbg(1, debug, client, "YUV %s\n", v ? "on" : "off");
1da177e4 LT	353	}
	354	break;
	355
	356	case DECODER_SET_PICTURE:
	357	{
	358	struct video_picture *pic = arg;
	359
	360	if (decoder->bright != pic->brightness) {
	361	/* We want 0 to 255 we get 0-65535 */
	362	decoder->bright = pic->brightness;
	363	saa7110_write(client, 0x19, decoder->bright >> 8);
	364	}
	365	if (decoder->contrast != pic->contrast) {
	366	/* We want 0 to 127 we get 0-65535 */
	367	decoder->contrast = pic->contrast;
	368	saa7110_write(client, 0x13,
	369	decoder->contrast >> 9);
	370	}
	371	if (decoder->sat != pic->colour) {
	372	/* We want 0 to 127 we get 0-65535 */
	373	decoder->sat = pic->colour;
	374	saa7110_write(client, 0x12, decoder->sat >> 9);
	375	}
	376	if (decoder->hue != pic->hue) {
	377	/* We want -128 to 127 we get 0-65535 */
	378	decoder->hue = pic->hue;
	379	saa7110_write(client, 0x07,
	380	(decoder->hue >> 8) - 128);
	381	}
1da177e4	382	break;
85ede69f	383	}
1da177e4 LT	384
1da177e4 LT	385	case DECODER_DUMP:
85ede69f HV	386	if (!debug)
85ede69f HV	387	break;
6201573c	388	for (v = 0; v < SAA7110_NR_REG; v += 16) {
1da177e4	389	int j;
85ede69f	390	v4l_dbg(1, debug, client, "%02x:", v);
6201573c	391	for (j = 0; j < 16 && v + j < SAA7110_NR_REG; j++)
85ede69f HV	392	printk(KERN_CONT " %02x", decoder->reg[v + j]);
85ede69f HV	393	printk(KERN_CONT "\n");
1da177e4 LT	394	}
	395	break;
	396
	397	default:
85ede69f	398	v4l_dbg(1, debug, client, "unknown command %08x\n", cmd);
1da177e4 LT	399	return -EINVAL;
	400	}
	401	return 0;
	402	}
	403
	404	/* ----------------------------------------------------------------------- */
	405
	406	/*
	407	* Generic i2c probe
	408	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
	409	*/
d56410e0	410
85ede69f	411	static unsigned short normal_i2c[] = { 0x9c >> 1, 0x9e >> 1, I2C_CLIENT_END };
1da177e4	412
85ede69f	413	I2C_CLIENT_INSMOD;
1da177e4	414
85ede69f HV	415	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	416	const struct i2c_device_id *id)
1da177e4	417	{
1da177e4 LT	418	struct saa7110 *decoder;
	419	int rv;
	420
1da177e4	421	/* Check if the adapter supports the needed features */
85ede69f HV	422	if (!i2c_check_functionality(client->adapter,
	423	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	424	return -ENODEV;
1da177e4	425
85ede69f HV	426	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	427	client->addr << 1, client->adapter->name);
1da177e4	428
7408187d	429	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
85ede69f	430	if (!decoder)
1da177e4	431	return -ENOMEM;
1da177e4 LT	432	decoder->norm = VIDEO_MODE_PAL;
	433	decoder->input = 0;
	434	decoder->enable = 1;
	435	decoder->bright = 32768;
	436	decoder->contrast = 32768;
	437	decoder->hue = 32768;
	438	decoder->sat = 32768;
	439	init_waitqueue_head(&decoder->wq);
	440	i2c_set_clientdata(client, decoder);
	441
1da177e4	442	rv = saa7110_write_block(client, initseq, sizeof(initseq));
85ede69f HV	443	if (rv < 0) {
	444	v4l_dbg(1, debug, client, "init status %d\n", rv);
	445	} else {
1da177e4 LT	446	int ver, status;
	447	saa7110_write(client, 0x21, 0x10);
	448	saa7110_write(client, 0x0e, 0x18);
	449	saa7110_write(client, 0x0D, 0x04);
	450	ver = saa7110_read(client);
	451	saa7110_write(client, 0x0D, 0x06);
	452	//mdelay(150);
	453	status = saa7110_read(client);
85ede69f HV	454	v4l_dbg(1, debug, client, "version %x, status=0x%02x\n",
85ede69f HV	455	ver, status);
1da177e4 LT	456	saa7110_write(client, 0x0D, 0x86);
	457	saa7110_write(client, 0x0F, 0x10);
	458	saa7110_write(client, 0x11, 0x59);
	459	//saa7110_write(client, 0x2E, 0x9A);
	460	}
	461
	462	//saa7110_selmux(client,0);
	463	//determine_norm(client);
	464	/* setup and implicit mode 0 select has been performed */
	465
	466	return 0;
	467	}
	468
85ede69f	469	static int saa7110_remove(struct i2c_client *client)
1da177e4	470	{
85ede69f	471	kfree(i2c_get_clientdata(client));
1da177e4 LT	472	return 0;
	473	}
	474
	475	/* ----------------------------------------------------------------------- */
	476
85ede69f HV	477	static const struct i2c_device_id saa7110_id[] = {
	478	{ "saa7110", 0 },
	479	{ }
	480	};
	481	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	482
85ede69f HV	483	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	484	.name = "saa7110",
	485	.driverid = I2C_DRIVERID_SAA7110,
1da177e4	486	.command = saa7110_command,
85ede69f HV	487	.probe = saa7110_probe,
	488	.remove = saa7110_remove,
	489	.id_table = saa7110_id,
1da177e4	490	};