[mirror_ubuntu-artful-kernel.git] / drivers / media / i2c / 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.
 */

#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 <linux/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.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 {
	struct v4l2_subdev sd;
	struct v4l2_ctrl_handler hdl;
	u8 reg[SAA7110_NR_REG];

	v4l2_std_id norm;
	int input;
	int enable;

	wait_queue_head_t wq;
};

static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd)
{
	return container_of(sd, struct saa7110, sd);
}

static inline struct v4l2_subdev *to_sd(struct v4l2_ctrl *ctrl)
{
	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
}

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

static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7110 *decoder = to_saa7110(sd);

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

static int saa7110_write_block(struct v4l2_subdev *sd, const u8 *data, unsigned int len)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7110 *decoder = to_saa7110(sd);
	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)) {
		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(sd, reg++, *data++);
			if (ret < 0)
				break;
		}
	}

	return ret;
}

static inline int saa7110_read(struct v4l2_subdev *sd)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	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 v4l2_subdev *sd, 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 = to_saa7110(sd);
	const unsigned char *ptr = modes[chan];

	saa7110_write(sd, 0x06, ptr[0]);	/* Luminance control    */
	saa7110_write(sd, 0x20, ptr[1]);	/* Analog Control #1    */
	saa7110_write(sd, 0x21, ptr[2]);	/* Analog Control #2    */
	saa7110_write(sd, 0x22, ptr[3]);	/* Mixer Control #1     */
	saa7110_write(sd, 0x2C, ptr[4]);	/* Mixer Control #2     */
	saa7110_write(sd, 0x30, ptr[5]);	/* ADCs gain control    */
	saa7110_write(sd, 0x31, ptr[6]);	/* Mixer Control #3     */
	saa7110_write(sd, 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 v4l2_subdev *sd)
{
	DEFINE_WAIT(wait);
	struct saa7110 *decoder = to_saa7110(sd);
	int status;

	/* mode changed, start automatic detection */
	saa7110_write_block(sd, initseq, sizeof(initseq));
	saa7110_selmux(sd, decoder->input);
	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
	schedule_timeout(msecs_to_jiffies(250));
	finish_wait(&decoder->wq, &wait);
	status = saa7110_read(sd);
	if (status & 0x40) {
		v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
		return V4L2_STD_UNKNOWN;
	}
	if ((status & 3) == 0) {
		saa7110_write(sd, 0x06, 0x83);
		if (status & 0x20) {
			v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
			/*saa7110_write(sd,0x2E,0x81);*/
			return V4L2_STD_NTSC;
		}
		v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
		/*saa7110_write(sd,0x2E,0x9A);*/
		return V4L2_STD_PAL;
	}
	/*saa7110_write(sd,0x06,0x03);*/
	if (status & 0x20) {	/* 60Hz */
		v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
		saa7110_write(sd, 0x0D, 0x86);
		saa7110_write(sd, 0x0F, 0x50);
		saa7110_write(sd, 0x11, 0x2C);
		/*saa7110_write(sd,0x2E,0x81);*/
		return V4L2_STD_NTSC;
	}

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

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

	status = saa7110_read(sd);
	if ((status & 0x03) == 0x01) {
		v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
		saa7110_write(sd, 0x0D, 0x87);
		return V4L2_STD_SECAM;
	}
	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
	return V4L2_STD_PAL;
}

static int saa7110_g_input_status(struct v4l2_subdev *sd, u32 *pstatus)
{
	struct saa7110 *decoder = to_saa7110(sd);
	int res = V4L2_IN_ST_NO_SIGNAL;
	int status = saa7110_read(sd);

	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
		       status, (unsigned long long)decoder->norm);
	if (!(status & 0x40))
		res = 0;
	if (!(status & 0x03))
		res |= V4L2_IN_ST_NO_COLOR;

	*pstatus = res;
	return 0;
}

static int saa7110_querystd(struct v4l2_subdev *sd, v4l2_std_id *std)
{
	*std &= determine_norm(sd);
	return 0;
}

static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (decoder->norm != std) {
		decoder->norm = std;
		/*saa7110_write(sd, 0x06, 0x03);*/
		if (std & V4L2_STD_NTSC) {
			saa7110_write(sd, 0x0D, 0x86);
			saa7110_write(sd, 0x0F, 0x50);
			saa7110_write(sd, 0x11, 0x2C);
			/*saa7110_write(sd, 0x2E, 0x81);*/
			v4l2_dbg(1, debug, sd, "switched to NTSC\n");
		} else if (std & V4L2_STD_PAL) {
			saa7110_write(sd, 0x0D, 0x86);
			saa7110_write(sd, 0x0F, 0x10);
			saa7110_write(sd, 0x11, 0x59);
			/*saa7110_write(sd, 0x2E, 0x9A);*/
			v4l2_dbg(1, debug, sd, "switched to PAL\n");
		} else if (std & V4L2_STD_SECAM) {
			saa7110_write(sd, 0x0D, 0x87);
			saa7110_write(sd, 0x0F, 0x10);
			saa7110_write(sd, 0x11, 0x59);
			/*saa7110_write(sd, 0x2E, 0x9A);*/
			v4l2_dbg(1, debug, sd, "switched to SECAM\n");
		} else {
			return -EINVAL;
		}
	}
	return 0;
}

static int saa7110_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (input >= SAA7110_MAX_INPUT) {
		v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
		return -EINVAL;
	}
	if (decoder->input != input) {
		saa7110_selmux(sd, input);
		v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
	}
	return 0;
}

static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
{
	struct saa7110 *decoder = to_saa7110(sd);

	if (decoder->enable != enable) {
		decoder->enable = enable;
		saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
		v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
	}
	return 0;
}

static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
{
	struct v4l2_subdev *sd = to_sd(ctrl);

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		saa7110_write(sd, 0x19, ctrl->val);
		break;
	case V4L2_CID_CONTRAST:
		saa7110_write(sd, 0x13, ctrl->val);
		break;
	case V4L2_CID_SATURATION:
		saa7110_write(sd, 0x12, ctrl->val);
		break;
	case V4L2_CID_HUE:
		saa7110_write(sd, 0x07, ctrl->val);
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

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

static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	.s_ctrl = saa7110_s_ctrl,
};

static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	.s_std = saa7110_s_std,
	.s_routing = saa7110_s_routing,
	.s_stream = saa7110_s_stream,
	.querystd = saa7110_querystd,
	.g_input_status = saa7110_g_input_status,
};

static const struct v4l2_subdev_ops saa7110_ops = {
	.video = &saa7110_video_ops,
};

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

static int saa7110_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct saa7110 *decoder;
	struct v4l2_subdev *sd;
	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 = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
	if (!decoder)
		return -ENOMEM;
	sd = &decoder->sd;
	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
	decoder->norm = V4L2_STD_PAL;
	decoder->input = 0;
	decoder->enable = 1;
	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_CONTRAST, 0, 127, 1, 64);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_SATURATION, 0, 127, 1, 64);
	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
		V4L2_CID_HUE, -128, 127, 1, 0);
	sd->ctrl_handler = &decoder->hdl;
	if (decoder->hdl.error) {
		int err = decoder->hdl.error;

		v4l2_ctrl_handler_free(&decoder->hdl);
		return err;
	}
	v4l2_ctrl_handler_setup(&decoder->hdl);

	init_waitqueue_head(&decoder->wq);

	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
	if (rv < 0) {
		v4l2_dbg(1, debug, sd, "init status %d\n", rv);
	} else {
		int ver, status;
		saa7110_write(sd, 0x21, 0x10);
		saa7110_write(sd, 0x0e, 0x18);
		saa7110_write(sd, 0x0D, 0x04);
		ver = saa7110_read(sd);
		saa7110_write(sd, 0x0D, 0x06);
		/*mdelay(150);*/
		status = saa7110_read(sd);
		v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
			       ver, status);
		saa7110_write(sd, 0x0D, 0x86);
		saa7110_write(sd, 0x0F, 0x10);
		saa7110_write(sd, 0x11, 0x59);
		/*saa7110_write(sd, 0x2E, 0x9A);*/
	}

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

	return 0;
}

static int saa7110_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct saa7110 *decoder = to_saa7110(sd);

	v4l2_device_unregister_subdev(sd);
	v4l2_ctrl_handler_free(&decoder->hdl);
	return 0;
}

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

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

static struct i2c_driver saa7110_driver = {
	.driver = {
		.name	= "saa7110",
	},
	.probe		= saa7110_probe,
	.remove		= saa7110_remove,
	.id_table	= saa7110_id,
};

module_i2c_driver(saa7110_driver);
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.
1da177e4 LT	22	*/
	23
	24	#include <linux/module.h>
	25	#include <linux/init.h>
	26	#include <linux/types.h>
	27	#include <linux/delay.h>
	28	#include <linux/slab.h>
	29	#include <linux/wait.h>
7c0f6ba6	30	#include <linux/uaccess.h>
85ede69f	31	#include <linux/i2c.h>
e7946844 HV	32	#include <linux/videodev2.h>
e7946844 HV	33	#include <media/v4l2-device.h>
4744ebf6	34	#include <media/v4l2-ctrls.h>
1da177e4 LT	35
	36	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	37	MODULE_AUTHOR("Pauline Middelink");
	38	MODULE_LICENSE("GPL");
	39
e7946844	40
ff699e6b	41	static int debug;
1da177e4 LT	42	module_param(debug, int, 0);
	43	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	44
1da177e4	45	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
8182ff69	46	#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
1da177e4	47
1da177e4 LT	48	#define SAA7110_NR_REG 0x35
	49
	50	struct saa7110 {
e7946844	51	struct v4l2_subdev sd;
4744ebf6	52	struct v4l2_ctrl_handler hdl;
1da177e4 LT	53	u8 reg[SAA7110_NR_REG];
1da177e4 LT	54
107063c6	55	v4l2_std_id norm;
1da177e4 LT	56	int input;
1da177e4 LT	57	int enable;
1da177e4 LT	58
	59	wait_queue_head_t wq;
	60	};
	61
e7946844 HV	62	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	63	{
	64	return container_of(sd, struct saa7110, sd);
	65	}
	66
4744ebf6 HV	67	static inline struct v4l2_subdev to_sd(struct v4l2_ctrl ctrl)
	68	{
	69	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
	70	}
	71
1da177e4 LT	72	/* ----------------------------------------------------------------------- */
	73	/* I2C support functions */
	74	/* ----------------------------------------------------------------------- */
	75
e7946844	76	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	77	{
e7946844 HV	78	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	79	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	80
	81	decoder->reg[reg] = value;
	82	return i2c_smbus_write_byte_data(client, reg, value);
	83	}
	84
e7946844	85	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
1da177e4	86	{
e7946844 HV	87	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	88	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	89	int ret = -1;
	90	u8 reg = data; / first register to write to */
	91
	92	/* Sanity check */
	93	if (reg + (len - 1) > SAA7110_NR_REG)
	94	return ret;
	95
	96	/* the saa7110 has an autoincrement function, use it if
	97	* the adapter understands raw I2C */
	98	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	99	ret = i2c_master_send(client, data, len);
1da177e4 LT	100
	101	/* Cache the written data */
	102	memcpy(decoder->reg + reg, data + 1, len - 1);
	103	} else {
	104	for (++data, --len; len; len--) {
e7946844	105	ret = saa7110_write(sd, reg++, *data++);
85ede69f	106	if (ret < 0)
1da177e4 LT	107	break;
	108	}
	109	}
	110
	111	return ret;
	112	}
	113
e7946844	114	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	115	{
e7946844 HV	116	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	117
1da177e4 LT	118	return i2c_smbus_read_byte(client);
	119	}
	120
	121	/* ----------------------------------------------------------------------- */
	122	/* SAA7110 functions */
	123	/* ----------------------------------------------------------------------- */
	124
e7946844 HV	125	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	126	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	127
1da177e4 LT	128
e7946844	129	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	130	{
	131	static const unsigned char modes[9][8] = {
	132	/* mode 0 */
	133	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	134	0x44, 0x75, 0x16},
	135	/* mode 1 */
	136	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	137	0x44, 0x75, 0x16},
	138	/* mode 2 */
	139	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	140	0x60, 0xB5, 0x05},
	141	/* mode 3 */
	142	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	143	0x60, 0xB5, 0x05},
	144	/* mode 4 */
	145	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	146	0x60, 0xB5, 0x03},
	147	/* mode 5 */
	148	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	149	0x60, 0xB5, 0x03},
	150	/* mode 6 */
	151	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	152	0x44, 0x75, 0x12},
	153	/* mode 7 */
	154	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	155	0x60, 0xB5, 0x14},
	156	/* mode 8 */
	157	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	158	0x44, 0x75, 0x21}
	159	};
e7946844	160	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	161	const unsigned char *ptr = modes[chan];
1da177e4 LT	162
e7946844 HV	163	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	164	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	165	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	166	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	167	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	168	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	169	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	170	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	171	decoder->input = chan;
	172
	173	return 0;
	174	}
	175
	176	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	177	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	178	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	179	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	180	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	181	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	182	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	183	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	184	};
	185
e7946844	186	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	187	{
1da177e4 LT	188	DEFINE_WAIT(wait);
e7946844	189	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	190	int status;
	191
	192	/* mode changed, start automatic detection */
e7946844 HV	193	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	194	saa7110_selmux(sd, decoder->input);
1da177e4	195	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	196	schedule_timeout(msecs_to_jiffies(250));
1da177e4	197	finish_wait(&decoder->wq, &wait);
e7946844	198	status = saa7110_read(sd);
1da177e4	199	if (status & 0x40) {
e7946844	200	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
416e87a4	201	return V4L2_STD_UNKNOWN;
1da177e4 LT	202	}
1da177e4 LT	203	if ((status & 3) == 0) {
e7946844	204	saa7110_write(sd, 0x06, 0x83);
1da177e4	205	if (status & 0x20) {
e7946844 HV	206	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	207	/saa7110_write(sd,0x2E,0x81);/
107063c6	208	return V4L2_STD_NTSC;
1da177e4	209	}
e7946844 HV	210	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	211	/saa7110_write(sd,0x2E,0x9A);/
107063c6	212	return V4L2_STD_PAL;
1da177e4	213	}
e7946844	214	/saa7110_write(sd,0x06,0x03);/
1da177e4	215	if (status & 0x20) { /* 60Hz */
e7946844 HV	216	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	217	saa7110_write(sd, 0x0D, 0x86);
	218	saa7110_write(sd, 0x0F, 0x50);
	219	saa7110_write(sd, 0x11, 0x2C);
	220	/saa7110_write(sd,0x2E,0x81);/
107063c6	221	return V4L2_STD_NTSC;
1da177e4 LT	222	}
	223
	224	/* 50Hz -> PAL/SECAM */
e7946844 HV	225	saa7110_write(sd, 0x0D, 0x86);
	226	saa7110_write(sd, 0x0F, 0x10);
	227	saa7110_write(sd, 0x11, 0x59);
	228	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	229
1da177e4 LT	230	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	231	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	232	finish_wait(&decoder->wq, &wait);
1da177e4 LT	233
e7946844	234	status = saa7110_read(sd);
1da177e4	235	if ((status & 0x03) == 0x01) {
e7946844 HV	236	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	237	saa7110_write(sd, 0x0D, 0x87);
107063c6	238	return V4L2_STD_SECAM;
1da177e4	239	}
e7946844	240	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	241	return V4L2_STD_PAL;
1da177e4 LT	242	}
1da177e4 LT	243
e7946844	244	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	245	{
e7946844 HV	246	struct saa7110 *decoder = to_saa7110(sd);
	247	int res = V4L2_IN_ST_NO_SIGNAL;
	248	int status = saa7110_read(sd);
	249
	250	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	251	status, (unsigned long long)decoder->norm);
e7946844 HV	252	if (!(status & 0x40))
	253	res = 0;
	254	if (!(status & 0x03))
	255	res \|= V4L2_IN_ST_NO_COLOR;
	256
	257	*pstatus = res;
	258	return 0;
	259	}
1da177e4	260
e7946844 HV	261	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
e7946844 HV	262	{
416e87a4	263	*std &= determine_norm(sd);
e7946844 HV	264	return 0;
e7946844 HV	265	}
1da177e4	266
e7946844 HV	267	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	268	{
	269	struct saa7110 *decoder = to_saa7110(sd);
	270
	271	if (decoder->norm != std) {
	272	decoder->norm = std;
	273	/saa7110_write(sd, 0x06, 0x03);/
	274	if (std & V4L2_STD_NTSC) {
	275	saa7110_write(sd, 0x0D, 0x86);
	276	saa7110_write(sd, 0x0F, 0x50);
	277	saa7110_write(sd, 0x11, 0x2C);
	278	/saa7110_write(sd, 0x2E, 0x81);/
	279	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	280	} else if (std & V4L2_STD_PAL) {
	281	saa7110_write(sd, 0x0D, 0x86);
	282	saa7110_write(sd, 0x0F, 0x10);
	283	saa7110_write(sd, 0x11, 0x59);
	284	/saa7110_write(sd, 0x2E, 0x9A);/
	285	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	286	} else if (std & V4L2_STD_SECAM) {
	287	saa7110_write(sd, 0x0D, 0x87);
	288	saa7110_write(sd, 0x0F, 0x10);
	289	saa7110_write(sd, 0x11, 0x59);
	290	/saa7110_write(sd, 0x2E, 0x9A);/
	291	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	292	} else {
	293	return -EINVAL;
	294	}
	295	}
	296	return 0;
	297	}
1da177e4	298
5325b427 HV	299	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	300	u32 input, u32 output, u32 config)
e7946844 HV	301	{
	302	struct saa7110 *decoder = to_saa7110(sd);
	303
f14a2972	304	if (input >= SAA7110_MAX_INPUT) {
5325b427	305	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	306	return -EINVAL;
85ede69f	307	}
5325b427 HV	308	if (decoder->input != input) {
	309	saa7110_selmux(sd, input);
	310	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	311	}
	312	return 0;
	313	}
1da177e4	314
e7946844 HV	315	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	316	{
	317	struct saa7110 *decoder = to_saa7110(sd);
	318
	319	if (decoder->enable != enable) {
	320	decoder->enable = enable;
	321	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	322	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	323	}
e7946844 HV	324	return 0;
e7946844 HV	325	}
107063c6	326
4744ebf6	327	static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
e7946844	328	{
4744ebf6	329	struct v4l2_subdev *sd = to_sd(ctrl);
e7946844 HV	330
	331	switch (ctrl->id) {
	332	case V4L2_CID_BRIGHTNESS:
4744ebf6	333	saa7110_write(sd, 0x19, ctrl->val);
1da177e4	334	break;
e7946844	335	case V4L2_CID_CONTRAST:
4744ebf6	336	saa7110_write(sd, 0x13, ctrl->val);
107063c6	337	break;
e7946844	338	case V4L2_CID_SATURATION:
4744ebf6	339	saa7110_write(sd, 0x12, ctrl->val);
1da177e4	340	break;
e7946844	341	case V4L2_CID_HUE:
4744ebf6	342	saa7110_write(sd, 0x07, ctrl->val);
1da177e4	343	break;
1da177e4	344	default:
1da177e4 LT	345	return -EINVAL;
	346	}
	347	return 0;
	348	}
	349
	350	/* ----------------------------------------------------------------------- */
	351
4744ebf6 HV	352	static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	353	.s_ctrl = saa7110_s_ctrl,
	354	};
	355
e7946844	356	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
8774bed9	357	.s_std = saa7110_s_std,
e7946844 HV	358	.s_routing = saa7110_s_routing,
	359	.s_stream = saa7110_s_stream,
	360	.querystd = saa7110_querystd,
	361	.g_input_status = saa7110_g_input_status,
	362	};
	363
	364	static const struct v4l2_subdev_ops saa7110_ops = {
e7946844 HV	365	.video = &saa7110_video_ops,
	366	};
	367
	368	/* ----------------------------------------------------------------------- */
1da177e4	369
85ede69f HV	370	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	371	const struct i2c_device_id *id)
1da177e4	372	{
1da177e4	373	struct saa7110 *decoder;
e7946844	374	struct v4l2_subdev *sd;
1da177e4 LT	375	int rv;
1da177e4 LT	376
1da177e4	377	/* Check if the adapter supports the needed features */
85ede69f HV	378	if (!i2c_check_functionality(client->adapter,
	379	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	380	return -ENODEV;
1da177e4	381
85ede69f HV	382	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	383	client->addr << 1, client->adapter->name);
1da177e4	384
c02b211d	385	decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
85ede69f	386	if (!decoder)
1da177e4	387	return -ENOMEM;
e7946844 HV	388	sd = &decoder->sd;
e7946844 HV	389	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	390	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	391	decoder->input = 0;
1da177e4 LT	392	decoder->enable = 1;
4744ebf6 HV	393	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	394	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	395	V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	396	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	397	V4L2_CID_CONTRAST, 0, 127, 1, 64);
	398	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	399	V4L2_CID_SATURATION, 0, 127, 1, 64);
	400	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	401	V4L2_CID_HUE, -128, 127, 1, 0);
	402	sd->ctrl_handler = &decoder->hdl;
	403	if (decoder->hdl.error) {
	404	int err = decoder->hdl.error;
	405
	406	v4l2_ctrl_handler_free(&decoder->hdl);
4744ebf6 HV	407	return err;
	408	}
	409	v4l2_ctrl_handler_setup(&decoder->hdl);
	410
1da177e4	411	init_waitqueue_head(&decoder->wq);
1da177e4	412
e7946844	413	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	414	if (rv < 0) {
e7946844	415	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	416	} else {
1da177e4	417	int ver, status;
e7946844 HV	418	saa7110_write(sd, 0x21, 0x10);
	419	saa7110_write(sd, 0x0e, 0x18);
	420	saa7110_write(sd, 0x0D, 0x04);
	421	ver = saa7110_read(sd);
	422	saa7110_write(sd, 0x0D, 0x06);
	423	/mdelay(150);/
	424	status = saa7110_read(sd);
	425	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	426	ver, status);
e7946844 HV	427	saa7110_write(sd, 0x0D, 0x86);
	428	saa7110_write(sd, 0x0F, 0x10);
	429	saa7110_write(sd, 0x11, 0x59);
	430	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	431	}
1da177e4 LT	432
e7946844 HV	433	/saa7110_selmux(sd,0);/
e7946844 HV	434	/determine_norm(sd);/
1da177e4 LT	435	/* setup and implicit mode 0 select has been performed */
	436
	437	return 0;
	438	}
	439
85ede69f	440	static int saa7110_remove(struct i2c_client *client)
1da177e4	441	{
e7946844	442	struct v4l2_subdev *sd = i2c_get_clientdata(client);
4744ebf6	443	struct saa7110 *decoder = to_saa7110(sd);
e7946844 HV	444
e7946844 HV	445	v4l2_device_unregister_subdev(sd);
4744ebf6	446	v4l2_ctrl_handler_free(&decoder->hdl);
1da177e4 LT	447	return 0;
	448	}
	449
	450	/* ----------------------------------------------------------------------- */
	451
85ede69f HV	452	static const struct i2c_device_id saa7110_id[] = {
	453	{ "saa7110", 0 },
	454	{ }
	455	};
	456	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	457
ff6e5422 HV	458	static struct i2c_driver saa7110_driver = {
ff6e5422 HV	459	.driver = {
ff6e5422 HV	460	.name = "saa7110",
	461	},
	462	.probe = saa7110_probe,
	463	.remove = saa7110_remove,
	464	.id_table = saa7110_id,
1da177e4	465	};
ff6e5422	466
c6e8d86f	467	module_i2c_driver(saa7110_driver);