[mirror_ubuntu-jammy-kernel.git] / drivers / media / i2c / saa7110.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * 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)
 */

#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
c942fddf	1	// SPDX-License-Identifier: GPL-2.0-or-later
1da177e4 LT	2	/*
	3	* saa7110 - Philips SAA7110(A) video decoder driver
	4	*
	5	* Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
	6	*
	7	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	8	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	9	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	10	*
	11	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	12	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
1da177e4 LT	13	*/
	14
	15	#include <linux/module.h>
	16	#include <linux/init.h>
	17	#include <linux/types.h>
	18	#include <linux/delay.h>
	19	#include <linux/slab.h>
	20	#include <linux/wait.h>
7c0f6ba6	21	#include <linux/uaccess.h>
85ede69f	22	#include <linux/i2c.h>
e7946844 HV	23	#include <linux/videodev2.h>
e7946844 HV	24	#include <media/v4l2-device.h>
4744ebf6	25	#include <media/v4l2-ctrls.h>
1da177e4 LT	26
	27	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	28	MODULE_AUTHOR("Pauline Middelink");
	29	MODULE_LICENSE("GPL");
	30
e7946844	31
ff699e6b	32	static int debug;
1da177e4 LT	33	module_param(debug, int, 0);
	34	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	35
1da177e4	36	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
8182ff69	37	#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
1da177e4	38
1da177e4 LT	39	#define SAA7110_NR_REG 0x35
	40
	41	struct saa7110 {
e7946844	42	struct v4l2_subdev sd;
4744ebf6	43	struct v4l2_ctrl_handler hdl;
1da177e4 LT	44	u8 reg[SAA7110_NR_REG];
1da177e4 LT	45
107063c6	46	v4l2_std_id norm;
1da177e4 LT	47	int input;
1da177e4 LT	48	int enable;
1da177e4 LT	49
	50	wait_queue_head_t wq;
	51	};
	52
e7946844 HV	53	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	54	{
	55	return container_of(sd, struct saa7110, sd);
	56	}
	57
4744ebf6 HV	58	static inline struct v4l2_subdev to_sd(struct v4l2_ctrl ctrl)
	59	{
	60	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
	61	}
	62
1da177e4 LT	63	/* ----------------------------------------------------------------------- */
	64	/* I2C support functions */
	65	/* ----------------------------------------------------------------------- */
	66
e7946844	67	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	68	{
e7946844 HV	69	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	70	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	71
	72	decoder->reg[reg] = value;
	73	return i2c_smbus_write_byte_data(client, reg, value);
	74	}
	75
e7946844	76	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
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	int ret = -1;
	81	u8 reg = data; / first register to write to */
	82
	83	/* Sanity check */
	84	if (reg + (len - 1) > SAA7110_NR_REG)
	85	return ret;
	86
	87	/* the saa7110 has an autoincrement function, use it if
	88	* the adapter understands raw I2C */
	89	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	90	ret = i2c_master_send(client, data, len);
1da177e4 LT	91
	92	/* Cache the written data */
	93	memcpy(decoder->reg + reg, data + 1, len - 1);
	94	} else {
	95	for (++data, --len; len; len--) {
e7946844	96	ret = saa7110_write(sd, reg++, *data++);
85ede69f	97	if (ret < 0)
1da177e4 LT	98	break;
	99	}
	100	}
	101
	102	return ret;
	103	}
	104
e7946844	105	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	106	{
e7946844 HV	107	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	108
1da177e4 LT	109	return i2c_smbus_read_byte(client);
	110	}
	111
	112	/* ----------------------------------------------------------------------- */
	113	/* SAA7110 functions */
	114	/* ----------------------------------------------------------------------- */
	115
e7946844 HV	116	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	117	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	118
1da177e4 LT	119
e7946844	120	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	121	{
	122	static const unsigned char modes[9][8] = {
	123	/* mode 0 */
	124	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	125	0x44, 0x75, 0x16},
	126	/* mode 1 */
	127	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	128	0x44, 0x75, 0x16},
	129	/* mode 2 */
	130	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	131	0x60, 0xB5, 0x05},
	132	/* mode 3 */
	133	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	134	0x60, 0xB5, 0x05},
	135	/* mode 4 */
	136	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	137	0x60, 0xB5, 0x03},
	138	/* mode 5 */
	139	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	140	0x60, 0xB5, 0x03},
	141	/* mode 6 */
	142	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	143	0x44, 0x75, 0x12},
	144	/* mode 7 */
	145	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	146	0x60, 0xB5, 0x14},
	147	/* mode 8 */
	148	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	149	0x44, 0x75, 0x21}
	150	};
e7946844	151	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	152	const unsigned char *ptr = modes[chan];
1da177e4 LT	153
e7946844 HV	154	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	155	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	156	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	157	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	158	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	159	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	160	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	161	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	162	decoder->input = chan;
	163
	164	return 0;
	165	}
	166
	167	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	168	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	169	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	170	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	171	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	172	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	173	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	174	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	175	};
	176
e7946844	177	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	178	{
1da177e4 LT	179	DEFINE_WAIT(wait);
e7946844	180	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	181	int status;
	182
	183	/* mode changed, start automatic detection */
e7946844 HV	184	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	185	saa7110_selmux(sd, decoder->input);
1da177e4	186	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	187	schedule_timeout(msecs_to_jiffies(250));
1da177e4	188	finish_wait(&decoder->wq, &wait);
e7946844	189	status = saa7110_read(sd);
1da177e4	190	if (status & 0x40) {
e7946844	191	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
416e87a4	192	return V4L2_STD_UNKNOWN;
1da177e4 LT	193	}
1da177e4 LT	194	if ((status & 3) == 0) {
e7946844	195	saa7110_write(sd, 0x06, 0x83);
1da177e4	196	if (status & 0x20) {
e7946844 HV	197	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	198	/saa7110_write(sd,0x2E,0x81);/
107063c6	199	return V4L2_STD_NTSC;
1da177e4	200	}
e7946844 HV	201	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	202	/saa7110_write(sd,0x2E,0x9A);/
107063c6	203	return V4L2_STD_PAL;
1da177e4	204	}
e7946844	205	/saa7110_write(sd,0x06,0x03);/
1da177e4	206	if (status & 0x20) { /* 60Hz */
e7946844 HV	207	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	208	saa7110_write(sd, 0x0D, 0x86);
	209	saa7110_write(sd, 0x0F, 0x50);
	210	saa7110_write(sd, 0x11, 0x2C);
	211	/saa7110_write(sd,0x2E,0x81);/
107063c6	212	return V4L2_STD_NTSC;
1da177e4 LT	213	}
	214
	215	/* 50Hz -> PAL/SECAM */
e7946844 HV	216	saa7110_write(sd, 0x0D, 0x86);
	217	saa7110_write(sd, 0x0F, 0x10);
	218	saa7110_write(sd, 0x11, 0x59);
	219	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	220
1da177e4 LT	221	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	222	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	223	finish_wait(&decoder->wq, &wait);
1da177e4 LT	224
e7946844	225	status = saa7110_read(sd);
1da177e4	226	if ((status & 0x03) == 0x01) {
e7946844 HV	227	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	228	saa7110_write(sd, 0x0D, 0x87);
107063c6	229	return V4L2_STD_SECAM;
1da177e4	230	}
e7946844	231	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	232	return V4L2_STD_PAL;
1da177e4 LT	233	}
1da177e4 LT	234
e7946844	235	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	236	{
e7946844 HV	237	struct saa7110 *decoder = to_saa7110(sd);
	238	int res = V4L2_IN_ST_NO_SIGNAL;
	239	int status = saa7110_read(sd);
	240
	241	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	242	status, (unsigned long long)decoder->norm);
e7946844 HV	243	if (!(status & 0x40))
	244	res = 0;
	245	if (!(status & 0x03))
	246	res \|= V4L2_IN_ST_NO_COLOR;
	247
	248	*pstatus = res;
	249	return 0;
	250	}
1da177e4	251
e7946844 HV	252	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
e7946844 HV	253	{
416e87a4	254	*std &= determine_norm(sd);
e7946844 HV	255	return 0;
e7946844 HV	256	}
1da177e4	257
e7946844 HV	258	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	259	{
	260	struct saa7110 *decoder = to_saa7110(sd);
	261
	262	if (decoder->norm != std) {
	263	decoder->norm = std;
	264	/saa7110_write(sd, 0x06, 0x03);/
	265	if (std & V4L2_STD_NTSC) {
	266	saa7110_write(sd, 0x0D, 0x86);
	267	saa7110_write(sd, 0x0F, 0x50);
	268	saa7110_write(sd, 0x11, 0x2C);
	269	/saa7110_write(sd, 0x2E, 0x81);/
	270	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	271	} else if (std & V4L2_STD_PAL) {
	272	saa7110_write(sd, 0x0D, 0x86);
	273	saa7110_write(sd, 0x0F, 0x10);
	274	saa7110_write(sd, 0x11, 0x59);
	275	/saa7110_write(sd, 0x2E, 0x9A);/
	276	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	277	} else if (std & V4L2_STD_SECAM) {
	278	saa7110_write(sd, 0x0D, 0x87);
	279	saa7110_write(sd, 0x0F, 0x10);
	280	saa7110_write(sd, 0x11, 0x59);
	281	/saa7110_write(sd, 0x2E, 0x9A);/
	282	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	283	} else {
	284	return -EINVAL;
	285	}
	286	}
	287	return 0;
	288	}
1da177e4	289
5325b427 HV	290	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	291	u32 input, u32 output, u32 config)
e7946844 HV	292	{
	293	struct saa7110 *decoder = to_saa7110(sd);
	294
f14a2972	295	if (input >= SAA7110_MAX_INPUT) {
5325b427	296	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	297	return -EINVAL;
85ede69f	298	}
5325b427 HV	299	if (decoder->input != input) {
	300	saa7110_selmux(sd, input);
	301	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	302	}
	303	return 0;
	304	}
1da177e4	305
e7946844 HV	306	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	307	{
	308	struct saa7110 *decoder = to_saa7110(sd);
	309
	310	if (decoder->enable != enable) {
	311	decoder->enable = enable;
	312	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	313	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	314	}
e7946844 HV	315	return 0;
e7946844 HV	316	}
107063c6	317
4744ebf6	318	static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
e7946844	319	{
4744ebf6	320	struct v4l2_subdev *sd = to_sd(ctrl);
e7946844 HV	321
	322	switch (ctrl->id) {
	323	case V4L2_CID_BRIGHTNESS:
4744ebf6	324	saa7110_write(sd, 0x19, ctrl->val);
1da177e4	325	break;
e7946844	326	case V4L2_CID_CONTRAST:
4744ebf6	327	saa7110_write(sd, 0x13, ctrl->val);
107063c6	328	break;
e7946844	329	case V4L2_CID_SATURATION:
4744ebf6	330	saa7110_write(sd, 0x12, ctrl->val);
1da177e4	331	break;
e7946844	332	case V4L2_CID_HUE:
4744ebf6	333	saa7110_write(sd, 0x07, ctrl->val);
1da177e4	334	break;
1da177e4	335	default:
1da177e4 LT	336	return -EINVAL;
	337	}
	338	return 0;
	339	}
	340
	341	/* ----------------------------------------------------------------------- */
	342
4744ebf6 HV	343	static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	344	.s_ctrl = saa7110_s_ctrl,
	345	};
	346
e7946844	347	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
8774bed9	348	.s_std = saa7110_s_std,
e7946844 HV	349	.s_routing = saa7110_s_routing,
	350	.s_stream = saa7110_s_stream,
	351	.querystd = saa7110_querystd,
	352	.g_input_status = saa7110_g_input_status,
	353	};
	354
	355	static const struct v4l2_subdev_ops saa7110_ops = {
e7946844 HV	356	.video = &saa7110_video_ops,
	357	};
	358
	359	/* ----------------------------------------------------------------------- */
1da177e4	360
85ede69f HV	361	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	362	const struct i2c_device_id *id)
1da177e4	363	{
1da177e4	364	struct saa7110 *decoder;
e7946844	365	struct v4l2_subdev *sd;
1da177e4 LT	366	int rv;
1da177e4 LT	367
1da177e4	368	/* Check if the adapter supports the needed features */
85ede69f HV	369	if (!i2c_check_functionality(client->adapter,
	370	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	371	return -ENODEV;
1da177e4	372
85ede69f HV	373	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	374	client->addr << 1, client->adapter->name);
1da177e4	375
c02b211d	376	decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
85ede69f	377	if (!decoder)
1da177e4	378	return -ENOMEM;
e7946844 HV	379	sd = &decoder->sd;
e7946844 HV	380	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	381	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	382	decoder->input = 0;
1da177e4 LT	383	decoder->enable = 1;
4744ebf6 HV	384	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	385	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	386	V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	387	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	388	V4L2_CID_CONTRAST, 0, 127, 1, 64);
	389	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	390	V4L2_CID_SATURATION, 0, 127, 1, 64);
	391	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	392	V4L2_CID_HUE, -128, 127, 1, 0);
	393	sd->ctrl_handler = &decoder->hdl;
	394	if (decoder->hdl.error) {
	395	int err = decoder->hdl.error;
	396
	397	v4l2_ctrl_handler_free(&decoder->hdl);
4744ebf6 HV	398	return err;
	399	}
	400	v4l2_ctrl_handler_setup(&decoder->hdl);
	401
1da177e4	402	init_waitqueue_head(&decoder->wq);
1da177e4	403
e7946844	404	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	405	if (rv < 0) {
e7946844	406	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	407	} else {
1da177e4	408	int ver, status;
e7946844 HV	409	saa7110_write(sd, 0x21, 0x10);
	410	saa7110_write(sd, 0x0e, 0x18);
	411	saa7110_write(sd, 0x0D, 0x04);
	412	ver = saa7110_read(sd);
	413	saa7110_write(sd, 0x0D, 0x06);
	414	/mdelay(150);/
	415	status = saa7110_read(sd);
	416	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	417	ver, status);
e7946844 HV	418	saa7110_write(sd, 0x0D, 0x86);
	419	saa7110_write(sd, 0x0F, 0x10);
	420	saa7110_write(sd, 0x11, 0x59);
	421	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	422	}
1da177e4 LT	423
e7946844 HV	424	/saa7110_selmux(sd,0);/
e7946844 HV	425	/determine_norm(sd);/
1da177e4 LT	426	/* setup and implicit mode 0 select has been performed */
	427
	428	return 0;
	429	}
	430
85ede69f	431	static int saa7110_remove(struct i2c_client *client)
1da177e4	432	{
e7946844	433	struct v4l2_subdev *sd = i2c_get_clientdata(client);
4744ebf6	434	struct saa7110 *decoder = to_saa7110(sd);
e7946844 HV	435
e7946844 HV	436	v4l2_device_unregister_subdev(sd);
4744ebf6	437	v4l2_ctrl_handler_free(&decoder->hdl);
1da177e4 LT	438	return 0;
	439	}
	440
	441	/* ----------------------------------------------------------------------- */
	442
85ede69f HV	443	static const struct i2c_device_id saa7110_id[] = {
	444	{ "saa7110", 0 },
	445	{ }
	446	};
	447	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	448
ff6e5422 HV	449	static struct i2c_driver saa7110_driver = {
ff6e5422 HV	450	.driver = {
ff6e5422 HV	451	.name = "saa7110",
	452	},
	453	.probe = saa7110_probe,
	454	.remove = saa7110_remove,
	455	.id_table = saa7110_id,
1da177e4	456	};
ff6e5422	457
c6e8d86f	458	module_i2c_driver(saa7110_driver);