[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	1	/* 1 YUV */

#define SAA7110_NR_REG		0x35

struct saa7110 {
	u8 reg[SAA7110_NR_REG];

	v4l2_std_id 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 v4l2_std_id 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 V4L2_STD_NTSC;
		}
		v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
		//saa7110_write(client,0x2E,0x9A);
		return V4L2_STD_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 V4L2_STD_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 V4L2_STD_SECAM;
	}
	v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
	return V4L2_STD_PAL;
}

static int
saa7110_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa7110 *decoder = i2c_get_clientdata(client);
	struct v4l2_routing *route = arg;
	v4l2_std_id std;
	int v;

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

	case VIDIOC_INT_G_INPUT_STATUS:
	{
		int res = V4L2_IN_ST_NO_SIGNAL;
		int status;

		status = saa7110_read(client);
		v4l_dbg(1, debug, client, "status=0x%02x norm=%llx\n",
			       status, decoder->norm);
		if (!(status & 0x40))
			res = 0;
		if (!(status & 0x03))
			res |= V4L2_IN_ST_NO_COLOR;

		*(int *) arg = res;
		break;
	}

	case VIDIOC_QUERYSTD:
	{
		*(v4l2_std_id *)arg = determine_norm(client);
		break;
	}

	case VIDIOC_S_STD:
		std = *(v4l2_std_id *) arg;
		if (decoder->norm != std) {
			decoder->norm = std;
			//saa7110_write(client, 0x06, 0x03);
			if (std & V4L2_STD_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");
			} else if (std & V4L2_STD_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");
			} else if (std & V4L2_STD_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");
			} else {
				return -EINVAL;
			}
		}
		break;

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

	case VIDIOC_STREAMON:
	case VIDIOC_STREAMOFF:
		v = cmd == VIDIOC_STREAMON;
		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 VIDIOC_QUERYCTRL:
	{
		struct v4l2_queryctrl *qc = arg;

		switch (qc->id) {
	        case V4L2_CID_BRIGHTNESS:
	                return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
	        case V4L2_CID_CONTRAST:
	        case V4L2_CID_SATURATION:
	                return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
	        case V4L2_CID_HUE:
	                return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
		default:
			return -EINVAL;
		}
		break;
	}

	case VIDIOC_G_CTRL:
	{
		struct v4l2_control *ctrl = arg;

		switch (ctrl->id) {
		case V4L2_CID_BRIGHTNESS:
			ctrl->value = decoder->bright;
			break;
		case V4L2_CID_CONTRAST:
			ctrl->value = decoder->contrast;
			break;
		case V4L2_CID_SATURATION:
			ctrl->value = decoder->sat;
			break;
		case V4L2_CID_HUE:
			ctrl->value = decoder->hue;
			break;
		default:
			return -EINVAL;
		}
		break;
	}

	case VIDIOC_S_CTRL:
	{
		struct v4l2_control *ctrl = arg;

		switch (ctrl->id) {
		case V4L2_CID_BRIGHTNESS:
			if (decoder->bright != ctrl->value) {
				decoder->bright = ctrl->value;
				saa7110_write(client, 0x19, decoder->bright);
			}
			break;
		case V4L2_CID_CONTRAST:
			if (decoder->contrast != ctrl->value) {
				decoder->contrast = ctrl->value;
				saa7110_write(client, 0x13, decoder->contrast);
			}
			break;
		case V4L2_CID_SATURATION:
			if (decoder->sat != ctrl->value) {
				decoder->sat = ctrl->value;
				saa7110_write(client, 0x12, decoder->sat);
			}
			break;
		case V4L2_CID_HUE:
			if (decoder->hue != ctrl->value) {
				decoder->hue = ctrl->value;
				saa7110_write(client, 0x07, decoder->hue);
			}
			break;
		default:
			return -EINVAL;
		}
		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 = V4L2_STD_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	49	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
8182ff69	50	#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
1da177e4	51
1da177e4 LT	52	#define SAA7110_NR_REG 0x35
	53
	54	struct saa7110 {
	55	u8 reg[SAA7110_NR_REG];
	56
107063c6	57	v4l2_std_id norm;
1da177e4 LT	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
107063c6	179	static v4l2_std_id 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	200	//saa7110_write(client,0x2E,0x81);
107063c6	201	return V4L2_STD_NTSC;
1da177e4	202	}
85ede69f	203	v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
1da177e4	204	//saa7110_write(client,0x2E,0x9A);
107063c6	205	return V4L2_STD_PAL;
1da177e4 LT	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);
107063c6	214	return V4L2_STD_NTSC;
1da177e4 LT	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	230	saa7110_write(client, 0x0D, 0x87);
107063c6	231	return V4L2_STD_SECAM;
1da177e4	232	}
85ede69f	233	v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
107063c6	234	return V4L2_STD_PAL;
1da177e4 LT	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);
107063c6 HV	243	struct v4l2_routing *route = arg;
107063c6 HV	244	v4l2_std_id std;
1da177e4 LT	245	int v;
	246
	247	switch (cmd) {
107063c6	248	case VIDIOC_INT_INIT:
1da177e4 LT	249	//saa7110_write_block(client, initseq, sizeof(initseq));
	250	break;
	251
107063c6	252	case VIDIOC_INT_G_INPUT_STATUS:
1da177e4	253	{
107063c6	254	int res = V4L2_IN_ST_NO_SIGNAL;
1da177e4	255	int status;
1da177e4 LT	256
1da177e4 LT	257	status = saa7110_read(client);
107063c6	258	v4l_dbg(1, debug, client, "status=0x%02x norm=%llx\n",
85ede69f	259	status, decoder->norm);
1da177e4	260	if (!(status & 0x40))
107063c6 HV	261	res = 0;
	262	if (!(status & 0x03))
	263	res \|= V4L2_IN_ST_NO_COLOR;
1da177e4	264
1da177e4	265	(int ) arg = res;
1da177e4	266	break;
85ede69f	267	}
1da177e4	268
107063c6 HV	269	case VIDIOC_QUERYSTD:
	270	{
	271	(v4l2_std_id )arg = determine_norm(client);
	272	break;
	273	}
	274
	275	case VIDIOC_S_STD:
	276	std = (v4l2_std_id ) arg;
	277	if (decoder->norm != std) {
	278	decoder->norm = std;
1da177e4	279	//saa7110_write(client, 0x06, 0x03);
107063c6	280	if (std & V4L2_STD_NTSC) {
1da177e4 LT	281	saa7110_write(client, 0x0D, 0x86);
	282	saa7110_write(client, 0x0F, 0x50);
	283	saa7110_write(client, 0x11, 0x2C);
	284	//saa7110_write(client, 0x2E, 0x81);
85ede69f	285	v4l_dbg(1, debug, client, "switched to NTSC\n");
107063c6	286	} else if (std & V4L2_STD_PAL) {
1da177e4 LT	287	saa7110_write(client, 0x0D, 0x86);
	288	saa7110_write(client, 0x0F, 0x10);
	289	saa7110_write(client, 0x11, 0x59);
	290	//saa7110_write(client, 0x2E, 0x9A);
85ede69f	291	v4l_dbg(1, debug, client, "switched to PAL\n");
107063c6	292	} else if (std & V4L2_STD_SECAM) {
1da177e4 LT	293	saa7110_write(client, 0x0D, 0x87);
	294	saa7110_write(client, 0x0F, 0x10);
	295	saa7110_write(client, 0x11, 0x59);
	296	//saa7110_write(client, 0x2E, 0x9A);
85ede69f	297	v4l_dbg(1, debug, client, "switched to SECAM\n");
107063c6 HV	298	} else {
107063c6 HV	299	return -EINVAL;
1da177e4 LT	300	}
	301	}
	302	break;
	303
107063c6 HV	304	case VIDIOC_INT_S_VIDEO_ROUTING:
	305	if (route->input < 0 \|\| route->input >= SAA7110_MAX_INPUT) {
	306	v4l_dbg(1, debug, client, "input=%d not available\n", route->input);
1da177e4 LT	307	return -EINVAL;
1da177e4 LT	308	}
107063c6 HV	309	if (decoder->input != route->input) {
	310	saa7110_selmux(client, route->input);
	311	v4l_dbg(1, debug, client, "switched to input=%d\n", route->input);
1da177e4 LT	312	}
	313	break;
	314
107063c6 HV	315	case VIDIOC_STREAMON:
	316	case VIDIOC_STREAMOFF:
	317	v = cmd == VIDIOC_STREAMON;
1da177e4 LT	318	if (decoder->enable != v) {
	319	decoder->enable = v;
	320	saa7110_write(client, 0x0E, v ? 0x18 : 0x80);
85ede69f	321	v4l_dbg(1, debug, client, "YUV %s\n", v ? "on" : "off");
1da177e4 LT	322	}
	323	break;
	324
107063c6	325	case VIDIOC_QUERYCTRL:
1da177e4	326	{
107063c6 HV	327	struct v4l2_queryctrl *qc = arg;
	328
	329	switch (qc->id) {
	330	case V4L2_CID_BRIGHTNESS:
	331	return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
	332	case V4L2_CID_CONTRAST:
	333	case V4L2_CID_SATURATION:
	334	return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
	335	case V4L2_CID_HUE:
	336	return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
	337	default:
	338	return -EINVAL;
1da177e4	339	}
107063c6 HV	340	break;
	341	}
	342
	343	case VIDIOC_G_CTRL:
	344	{
	345	struct v4l2_control *ctrl = arg;
	346
	347	switch (ctrl->id) {
	348	case V4L2_CID_BRIGHTNESS:
	349	ctrl->value = decoder->bright;
	350	break;
	351	case V4L2_CID_CONTRAST:
	352	ctrl->value = decoder->contrast;
	353	break;
	354	case V4L2_CID_SATURATION:
	355	ctrl->value = decoder->sat;
	356	break;
	357	case V4L2_CID_HUE:
	358	ctrl->value = decoder->hue;
	359	break;
	360	default:
	361	return -EINVAL;
1da177e4	362	}
1da177e4	363	break;
85ede69f	364	}
1da177e4	365
107063c6 HV	366	case VIDIOC_S_CTRL:
	367	{
	368	struct v4l2_control *ctrl = arg;
	369
	370	switch (ctrl->id) {
	371	case V4L2_CID_BRIGHTNESS:
	372	if (decoder->bright != ctrl->value) {
	373	decoder->bright = ctrl->value;
	374	saa7110_write(client, 0x19, decoder->bright);
	375	}
85ede69f	376	break;
107063c6 HV	377	case V4L2_CID_CONTRAST:
	378	if (decoder->contrast != ctrl->value) {
	379	decoder->contrast = ctrl->value;
	380	saa7110_write(client, 0x13, decoder->contrast);
	381	}
	382	break;
	383	case V4L2_CID_SATURATION:
	384	if (decoder->sat != ctrl->value) {
	385	decoder->sat = ctrl->value;
	386	saa7110_write(client, 0x12, decoder->sat);
	387	}
	388	break;
	389	case V4L2_CID_HUE:
	390	if (decoder->hue != ctrl->value) {
	391	decoder->hue = ctrl->value;
	392	saa7110_write(client, 0x07, decoder->hue);
	393	}
	394	break;
	395	default:
	396	return -EINVAL;
1da177e4 LT	397	}
1da177e4 LT	398	break;
107063c6	399	}
1da177e4 LT	400
1da177e4 LT	401	default:
85ede69f	402	v4l_dbg(1, debug, client, "unknown command %08x\n", cmd);
1da177e4 LT	403	return -EINVAL;
	404	}
	405	return 0;
	406	}
	407
	408	/* ----------------------------------------------------------------------- */
	409
	410	/*
	411	* Generic i2c probe
	412	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
	413	*/
d56410e0	414
85ede69f	415	static unsigned short normal_i2c[] = { 0x9c >> 1, 0x9e >> 1, I2C_CLIENT_END };
1da177e4	416
85ede69f	417	I2C_CLIENT_INSMOD;
1da177e4	418
85ede69f HV	419	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	420	const struct i2c_device_id *id)
1da177e4	421	{
1da177e4 LT	422	struct saa7110 *decoder;
	423	int rv;
	424
1da177e4	425	/* Check if the adapter supports the needed features */
85ede69f HV	426	if (!i2c_check_functionality(client->adapter,
	427	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	428	return -ENODEV;
1da177e4	429
85ede69f HV	430	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	431	client->addr << 1, client->adapter->name);
1da177e4	432
7408187d	433	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
85ede69f	434	if (!decoder)
1da177e4	435	return -ENOMEM;
107063c6	436	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	437	decoder->input = 0;
	438	decoder->enable = 1;
	439	decoder->bright = 32768;
	440	decoder->contrast = 32768;
	441	decoder->hue = 32768;
	442	decoder->sat = 32768;
	443	init_waitqueue_head(&decoder->wq);
	444	i2c_set_clientdata(client, decoder);
	445
1da177e4	446	rv = saa7110_write_block(client, initseq, sizeof(initseq));
85ede69f HV	447	if (rv < 0) {
	448	v4l_dbg(1, debug, client, "init status %d\n", rv);
	449	} else {
1da177e4 LT	450	int ver, status;
	451	saa7110_write(client, 0x21, 0x10);
	452	saa7110_write(client, 0x0e, 0x18);
	453	saa7110_write(client, 0x0D, 0x04);
	454	ver = saa7110_read(client);
	455	saa7110_write(client, 0x0D, 0x06);
	456	//mdelay(150);
	457	status = saa7110_read(client);
85ede69f HV	458	v4l_dbg(1, debug, client, "version %x, status=0x%02x\n",
85ede69f HV	459	ver, status);
1da177e4 LT	460	saa7110_write(client, 0x0D, 0x86);
	461	saa7110_write(client, 0x0F, 0x10);
	462	saa7110_write(client, 0x11, 0x59);
	463	//saa7110_write(client, 0x2E, 0x9A);
	464	}
	465
	466	//saa7110_selmux(client,0);
	467	//determine_norm(client);
	468	/* setup and implicit mode 0 select has been performed */
	469
	470	return 0;
	471	}
	472
85ede69f	473	static int saa7110_remove(struct i2c_client *client)
1da177e4	474	{
85ede69f	475	kfree(i2c_get_clientdata(client));
1da177e4 LT	476	return 0;
	477	}
	478
	479	/* ----------------------------------------------------------------------- */
	480
85ede69f HV	481	static const struct i2c_device_id saa7110_id[] = {
	482	{ "saa7110", 0 },
	483	{ }
	484	};
	485	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	486
85ede69f HV	487	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	488	.name = "saa7110",
	489	.driverid = I2C_DRIVERID_SAA7110,
1da177e4	490	.command = saa7110_command,
85ede69f HV	491	.probe = saa7110_probe,
	492	.remove = saa7110_remove,
	493	.id_table = saa7110_id,
1da177e4	494	};