[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/videodev2.h>
#include <media/v4l2-device.h>
#include <media/v4l2-chip-ident.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;
	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;
};

static inline struct saa7110 *to_saa7110(struct v4l2_subdev *sd)
{
	return container_of(sd, struct saa7110, 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 decoder->norm;	/* no change*/
	}
	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)
{
	*(v4l2_std_id *)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_queryctrl(struct v4l2_subdev *sd, struct v4l2_queryctrl *qc)
{
	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;
	}
	return 0;
}

static int saa7110_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct saa7110 *decoder = to_saa7110(sd);

	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;
	}
	return 0;
}

static int saa7110_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
{
	struct saa7110 *decoder = to_saa7110(sd);

	switch (ctrl->id) {
	case V4L2_CID_BRIGHTNESS:
		if (decoder->bright != ctrl->value) {
			decoder->bright = ctrl->value;
			saa7110_write(sd, 0x19, decoder->bright);
		}
		break;
	case V4L2_CID_CONTRAST:
		if (decoder->contrast != ctrl->value) {
			decoder->contrast = ctrl->value;
			saa7110_write(sd, 0x13, decoder->contrast);
		}
		break;
	case V4L2_CID_SATURATION:
		if (decoder->sat != ctrl->value) {
			decoder->sat = ctrl->value;
			saa7110_write(sd, 0x12, decoder->sat);
		}
		break;
	case V4L2_CID_HUE:
		if (decoder->hue != ctrl->value) {
			decoder->hue = ctrl->value;
			saa7110_write(sd, 0x07, decoder->hue);
		}
		break;
	default:
		return -EINVAL;
	}
	return 0;
}

static int saa7110_g_chip_ident(struct v4l2_subdev *sd, struct v4l2_dbg_chip_ident *chip)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
}

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

static const struct v4l2_subdev_core_ops saa7110_core_ops = {
	.g_chip_ident = saa7110_g_chip_ident,
	.g_ctrl = saa7110_g_ctrl,
	.s_ctrl = saa7110_s_ctrl,
	.queryctrl = saa7110_queryctrl,
	.s_std = saa7110_s_std,
};

static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	.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 = {
	.core = &saa7110_core_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 = kzalloc(sizeof(struct saa7110), 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;
	decoder->bright = 32768;
	decoder->contrast = 32768;
	decoder->hue = 32768;
	decoder->sat = 32768;
	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);

	v4l2_device_unregister_subdev(sd);
	kfree(to_saa7110(sd));
	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 = {
		.owner	= THIS_MODULE,
		.name	= "saa7110",
	},
	.probe		= saa7110_probe,
	.remove		= saa7110_remove,
	.id_table	= saa7110_id,
};

static __init int init_saa7110(void)
{
	return i2c_add_driver(&saa7110_driver);
}

static __exit void exit_saa7110(void)
{
	i2c_del_driver(&saa7110_driver);
}

module_init(init_saa7110);
module_exit(exit_saa7110);
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	35	#include <linux/i2c.h>
e7946844 HV	36	#include <linux/videodev2.h>
	37	#include <media/v4l2-device.h>
	38	#include <media/v4l2-chip-ident.h>
1da177e4 LT	39
	40	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	41	MODULE_AUTHOR("Pauline Middelink");
	42	MODULE_LICENSE("GPL");
	43
e7946844	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 {
e7946844	55	struct v4l2_subdev sd;
1da177e4 LT	56	u8 reg[SAA7110_NR_REG];
1da177e4 LT	57
107063c6	58	v4l2_std_id norm;
1da177e4 LT	59	int input;
	60	int enable;
	61	int bright;
	62	int contrast;
	63	int hue;
	64	int sat;
	65
	66	wait_queue_head_t wq;
	67	};
	68
e7946844 HV	69	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	70	{
	71	return container_of(sd, struct saa7110, sd);
	72	}
	73
1da177e4 LT	74	/* ----------------------------------------------------------------------- */
	75	/* I2C support functions */
	76	/* ----------------------------------------------------------------------- */
	77
e7946844	78	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	79	{
e7946844 HV	80	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	81	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	82
	83	decoder->reg[reg] = value;
	84	return i2c_smbus_write_byte_data(client, reg, value);
	85	}
	86
e7946844	87	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
1da177e4	88	{
e7946844 HV	89	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	90	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	91	int ret = -1;
	92	u8 reg = data; / first register to write to */
	93
	94	/* Sanity check */
	95	if (reg + (len - 1) > SAA7110_NR_REG)
	96	return ret;
	97
	98	/* the saa7110 has an autoincrement function, use it if
	99	* the adapter understands raw I2C */
	100	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	101	ret = i2c_master_send(client, data, len);
1da177e4 LT	102
	103	/* Cache the written data */
	104	memcpy(decoder->reg + reg, data + 1, len - 1);
	105	} else {
	106	for (++data, --len; len; len--) {
e7946844	107	ret = saa7110_write(sd, reg++, *data++);
85ede69f	108	if (ret < 0)
1da177e4 LT	109	break;
	110	}
	111	}
	112
	113	return ret;
	114	}
	115
e7946844	116	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	117	{
e7946844 HV	118	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	119
1da177e4 LT	120	return i2c_smbus_read_byte(client);
	121	}
	122
	123	/* ----------------------------------------------------------------------- */
	124	/* SAA7110 functions */
	125	/* ----------------------------------------------------------------------- */
	126
e7946844 HV	127	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	128	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	129
1da177e4 LT	130
e7946844	131	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	132	{
	133	static const unsigned char modes[9][8] = {
	134	/* mode 0 */
	135	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	136	0x44, 0x75, 0x16},
	137	/* mode 1 */
	138	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	139	0x44, 0x75, 0x16},
	140	/* mode 2 */
	141	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	142	0x60, 0xB5, 0x05},
	143	/* mode 3 */
	144	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	145	0x60, 0xB5, 0x05},
	146	/* mode 4 */
	147	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	148	0x60, 0xB5, 0x03},
	149	/* mode 5 */
	150	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	151	0x60, 0xB5, 0x03},
	152	/* mode 6 */
	153	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	154	0x44, 0x75, 0x12},
	155	/* mode 7 */
	156	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	157	0x60, 0xB5, 0x14},
	158	/* mode 8 */
	159	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	160	0x44, 0x75, 0x21}
	161	};
e7946844	162	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	163	const unsigned char *ptr = modes[chan];
1da177e4 LT	164
e7946844 HV	165	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	166	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	167	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	168	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	169	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	170	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	171	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	172	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	173	decoder->input = chan;
	174
	175	return 0;
	176	}
	177
	178	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	179	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	180	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	181	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	182	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	183	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	184	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	185	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	186	};
	187
e7946844	188	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	189	{
1da177e4 LT	190	DEFINE_WAIT(wait);
e7946844	191	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	192	int status;
	193
	194	/* mode changed, start automatic detection */
e7946844 HV	195	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	196	saa7110_selmux(sd, decoder->input);
1da177e4	197	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	198	schedule_timeout(msecs_to_jiffies(250));
1da177e4	199	finish_wait(&decoder->wq, &wait);
e7946844	200	status = saa7110_read(sd);
1da177e4	201	if (status & 0x40) {
e7946844 HV	202	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
e7946844 HV	203	return decoder->norm; /* no change*/
1da177e4 LT	204	}
1da177e4 LT	205	if ((status & 3) == 0) {
e7946844	206	saa7110_write(sd, 0x06, 0x83);
1da177e4	207	if (status & 0x20) {
e7946844 HV	208	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	209	/saa7110_write(sd,0x2E,0x81);/
107063c6	210	return V4L2_STD_NTSC;
1da177e4	211	}
e7946844 HV	212	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	213	/saa7110_write(sd,0x2E,0x9A);/
107063c6	214	return V4L2_STD_PAL;
1da177e4	215	}
e7946844	216	/saa7110_write(sd,0x06,0x03);/
1da177e4	217	if (status & 0x20) { /* 60Hz */
e7946844 HV	218	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	219	saa7110_write(sd, 0x0D, 0x86);
	220	saa7110_write(sd, 0x0F, 0x50);
	221	saa7110_write(sd, 0x11, 0x2C);
	222	/saa7110_write(sd,0x2E,0x81);/
107063c6	223	return V4L2_STD_NTSC;
1da177e4 LT	224	}
	225
	226	/* 50Hz -> PAL/SECAM */
e7946844 HV	227	saa7110_write(sd, 0x0D, 0x86);
	228	saa7110_write(sd, 0x0F, 0x10);
	229	saa7110_write(sd, 0x11, 0x59);
	230	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	231
1da177e4 LT	232	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	233	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	234	finish_wait(&decoder->wq, &wait);
1da177e4 LT	235
e7946844	236	status = saa7110_read(sd);
1da177e4	237	if ((status & 0x03) == 0x01) {
e7946844 HV	238	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	239	saa7110_write(sd, 0x0D, 0x87);
107063c6	240	return V4L2_STD_SECAM;
1da177e4	241	}
e7946844	242	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	243	return V4L2_STD_PAL;
1da177e4 LT	244	}
1da177e4 LT	245
e7946844	246	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	247	{
e7946844 HV	248	struct saa7110 *decoder = to_saa7110(sd);
	249	int res = V4L2_IN_ST_NO_SIGNAL;
	250	int status = saa7110_read(sd);
	251
	252	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	253	status, (unsigned long long)decoder->norm);
e7946844 HV	254	if (!(status & 0x40))
	255	res = 0;
	256	if (!(status & 0x03))
	257	res \|= V4L2_IN_ST_NO_COLOR;
	258
	259	*pstatus = res;
	260	return 0;
	261	}
1da177e4	262
e7946844 HV	263	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
	264	{
	265	(v4l2_std_id )std = determine_norm(sd);
	266	return 0;
	267	}
1da177e4	268
e7946844 HV	269	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	270	{
	271	struct saa7110 *decoder = to_saa7110(sd);
	272
	273	if (decoder->norm != std) {
	274	decoder->norm = std;
	275	/saa7110_write(sd, 0x06, 0x03);/
	276	if (std & V4L2_STD_NTSC) {
	277	saa7110_write(sd, 0x0D, 0x86);
	278	saa7110_write(sd, 0x0F, 0x50);
	279	saa7110_write(sd, 0x11, 0x2C);
	280	/saa7110_write(sd, 0x2E, 0x81);/
	281	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	282	} else if (std & V4L2_STD_PAL) {
	283	saa7110_write(sd, 0x0D, 0x86);
	284	saa7110_write(sd, 0x0F, 0x10);
	285	saa7110_write(sd, 0x11, 0x59);
	286	/saa7110_write(sd, 0x2E, 0x9A);/
	287	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	288	} else if (std & V4L2_STD_SECAM) {
	289	saa7110_write(sd, 0x0D, 0x87);
	290	saa7110_write(sd, 0x0F, 0x10);
	291	saa7110_write(sd, 0x11, 0x59);
	292	/saa7110_write(sd, 0x2E, 0x9A);/
	293	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	294	} else {
	295	return -EINVAL;
	296	}
	297	}
	298	return 0;
	299	}
1da177e4	300
5325b427 HV	301	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	302	u32 input, u32 output, u32 config)
e7946844 HV	303	{
	304	struct saa7110 *decoder = to_saa7110(sd);
	305
f14a2972	306	if (input >= SAA7110_MAX_INPUT) {
5325b427	307	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	308	return -EINVAL;
85ede69f	309	}
5325b427 HV	310	if (decoder->input != input) {
	311	saa7110_selmux(sd, input);
	312	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	313	}
	314	return 0;
	315	}
1da177e4	316
e7946844 HV	317	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	318	{
	319	struct saa7110 *decoder = to_saa7110(sd);
	320
	321	if (decoder->enable != enable) {
	322	decoder->enable = enable;
	323	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	324	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	325	}
e7946844 HV	326	return 0;
e7946844 HV	327	}
107063c6	328
e7946844 HV	329	static int saa7110_queryctrl(struct v4l2_subdev sd, struct v4l2_queryctrl qc)
	330	{
	331	switch (qc->id) {
	332	case V4L2_CID_BRIGHTNESS:
	333	return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
	334	case V4L2_CID_CONTRAST:
	335	case V4L2_CID_SATURATION:
	336	return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
	337	case V4L2_CID_HUE:
	338	return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
	339	default:
	340	return -EINVAL;
	341	}
	342	return 0;
	343	}
1da177e4	344
e7946844 HV	345	static int saa7110_g_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	346	{
	347	struct saa7110 *decoder = to_saa7110(sd);
	348
	349	switch (ctrl->id) {
	350	case V4L2_CID_BRIGHTNESS:
	351	ctrl->value = decoder->bright;
	352	break;
	353	case V4L2_CID_CONTRAST:
	354	ctrl->value = decoder->contrast;
	355	break;
	356	case V4L2_CID_SATURATION:
	357	ctrl->value = decoder->sat;
	358	break;
	359	case V4L2_CID_HUE:
	360	ctrl->value = decoder->hue;
1da177e4	361	break;
e7946844 HV	362	default:
	363	return -EINVAL;
	364	}
	365	return 0;
	366	}
1da177e4	367
e7946844 HV	368	static int saa7110_s_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	369	{
	370	struct saa7110 *decoder = to_saa7110(sd);
	371
	372	switch (ctrl->id) {
	373	case V4L2_CID_BRIGHTNESS:
	374	if (decoder->bright != ctrl->value) {
	375	decoder->bright = ctrl->value;
	376	saa7110_write(sd, 0x19, decoder->bright);
1da177e4 LT	377	}
1da177e4 LT	378	break;
e7946844 HV	379	case V4L2_CID_CONTRAST:
	380	if (decoder->contrast != ctrl->value) {
	381	decoder->contrast = ctrl->value;
	382	saa7110_write(sd, 0x13, decoder->contrast);
1da177e4	383	}
107063c6	384	break;
e7946844 HV	385	case V4L2_CID_SATURATION:
	386	if (decoder->sat != ctrl->value) {
	387	decoder->sat = ctrl->value;
	388	saa7110_write(sd, 0x12, decoder->sat);
1da177e4	389	}
1da177e4	390	break;
e7946844 HV	391	case V4L2_CID_HUE:
	392	if (decoder->hue != ctrl->value) {
	393	decoder->hue = ctrl->value;
	394	saa7110_write(sd, 0x07, decoder->hue);
1da177e4 LT	395	}
1da177e4 LT	396	break;
1da177e4	397	default:
1da177e4 LT	398	return -EINVAL;
	399	}
	400	return 0;
	401	}
	402
e7946844 HV	403	static int saa7110_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	404	{
	405	struct i2c_client *client = v4l2_get_subdevdata(sd);
	406
	407	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
	408	}
	409
1da177e4 LT	410	/* ----------------------------------------------------------------------- */
1da177e4 LT	411
e7946844 HV	412	static const struct v4l2_subdev_core_ops saa7110_core_ops = {
	413	.g_chip_ident = saa7110_g_chip_ident,
	414	.g_ctrl = saa7110_g_ctrl,
	415	.s_ctrl = saa7110_s_ctrl,
	416	.queryctrl = saa7110_queryctrl,
e7946844 HV	417	.s_std = saa7110_s_std,
e7946844 HV	418	};
1da177e4	419
e7946844 HV	420	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	421	.s_routing = saa7110_s_routing,
	422	.s_stream = saa7110_s_stream,
	423	.querystd = saa7110_querystd,
	424	.g_input_status = saa7110_g_input_status,
	425	};
	426
	427	static const struct v4l2_subdev_ops saa7110_ops = {
	428	.core = &saa7110_core_ops,
e7946844 HV	429	.video = &saa7110_video_ops,
	430	};
	431
	432	/* ----------------------------------------------------------------------- */
1da177e4	433
85ede69f HV	434	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	435	const struct i2c_device_id *id)
1da177e4	436	{
1da177e4	437	struct saa7110 *decoder;
e7946844	438	struct v4l2_subdev *sd;
1da177e4 LT	439	int rv;
1da177e4 LT	440
1da177e4	441	/* Check if the adapter supports the needed features */
85ede69f HV	442	if (!i2c_check_functionality(client->adapter,
	443	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	444	return -ENODEV;
1da177e4	445
85ede69f HV	446	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	447	client->addr << 1, client->adapter->name);
1da177e4	448
7408187d	449	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
85ede69f	450	if (!decoder)
1da177e4	451	return -ENOMEM;
e7946844 HV	452	sd = &decoder->sd;
e7946844 HV	453	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	454	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	455	decoder->input = 0;
	456	decoder->enable = 1;
	457	decoder->bright = 32768;
	458	decoder->contrast = 32768;
	459	decoder->hue = 32768;
	460	decoder->sat = 32768;
	461	init_waitqueue_head(&decoder->wq);
1da177e4	462
e7946844	463	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	464	if (rv < 0) {
e7946844	465	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	466	} else {
1da177e4	467	int ver, status;
e7946844 HV	468	saa7110_write(sd, 0x21, 0x10);
	469	saa7110_write(sd, 0x0e, 0x18);
	470	saa7110_write(sd, 0x0D, 0x04);
	471	ver = saa7110_read(sd);
	472	saa7110_write(sd, 0x0D, 0x06);
	473	/mdelay(150);/
	474	status = saa7110_read(sd);
	475	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	476	ver, status);
e7946844 HV	477	saa7110_write(sd, 0x0D, 0x86);
	478	saa7110_write(sd, 0x0F, 0x10);
	479	saa7110_write(sd, 0x11, 0x59);
	480	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	481	}
1da177e4 LT	482
e7946844 HV	483	/saa7110_selmux(sd,0);/
e7946844 HV	484	/determine_norm(sd);/
1da177e4 LT	485	/* setup and implicit mode 0 select has been performed */
	486
	487	return 0;
	488	}
	489
85ede69f	490	static int saa7110_remove(struct i2c_client *client)
1da177e4	491	{
e7946844 HV	492	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	493
	494	v4l2_device_unregister_subdev(sd);
	495	kfree(to_saa7110(sd));
1da177e4 LT	496	return 0;
	497	}
	498
	499	/* ----------------------------------------------------------------------- */
	500
85ede69f HV	501	static const struct i2c_device_id saa7110_id[] = {
	502	{ "saa7110", 0 },
	503	{ }
	504	};
	505	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	506
ff6e5422 HV	507	static struct i2c_driver saa7110_driver = {
	508	.driver = {
	509	.owner = THIS_MODULE,
	510	.name = "saa7110",
	511	},
	512	.probe = saa7110_probe,
	513	.remove = saa7110_remove,
	514	.id_table = saa7110_id,
1da177e4	515	};
ff6e5422 HV	516
	517	static __init int init_saa7110(void)
	518	{
	519	return i2c_add_driver(&saa7110_driver);
	520	}
	521
	522	static __exit void exit_saa7110(void)
	523	{
	524	i2c_del_driver(&saa7110_driver);
	525	}
	526
	527	module_init(init_saa7110);
	528	module_exit(exit_saa7110);