[linux-2.6-block.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>
#include <media/v4l2-i2c-drv.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 < 0 || 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 v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "saa7110",
	.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	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>
2d26698e	39	#include <media/v4l2-i2c-drv.h>
1da177e4 LT	40
	41	MODULE_DESCRIPTION("Philips SAA7110 video decoder driver");
	42	MODULE_AUTHOR("Pauline Middelink");
	43	MODULE_LICENSE("GPL");
	44
e7946844	45
ff699e6b	46	static int debug;
1da177e4 LT	47	module_param(debug, int, 0);
	48	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	49
1da177e4	50	#define SAA7110_MAX_INPUT 9 /* 6 CVBS, 3 SVHS */
8182ff69	51	#define SAA7110_MAX_OUTPUT 1 /* 1 YUV */
1da177e4	52
1da177e4 LT	53	#define SAA7110_NR_REG 0x35
	54
	55	struct saa7110 {
e7946844	56	struct v4l2_subdev sd;
1da177e4 LT	57	u8 reg[SAA7110_NR_REG];
1da177e4 LT	58
107063c6	59	v4l2_std_id norm;
1da177e4 LT	60	int input;
	61	int enable;
	62	int bright;
	63	int contrast;
	64	int hue;
	65	int sat;
	66
	67	wait_queue_head_t wq;
	68	};
	69
e7946844 HV	70	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	71	{
	72	return container_of(sd, struct saa7110, sd);
	73	}
	74
1da177e4 LT	75	/* ----------------------------------------------------------------------- */
	76	/* I2C support functions */
	77	/* ----------------------------------------------------------------------- */
	78
e7946844	79	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	80	{
e7946844 HV	81	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	82	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	83
	84	decoder->reg[reg] = value;
	85	return i2c_smbus_write_byte_data(client, reg, value);
	86	}
	87
e7946844	88	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
1da177e4	89	{
e7946844 HV	90	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	91	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	92	int ret = -1;
	93	u8 reg = data; / first register to write to */
	94
	95	/* Sanity check */
	96	if (reg + (len - 1) > SAA7110_NR_REG)
	97	return ret;
	98
	99	/* the saa7110 has an autoincrement function, use it if
	100	* the adapter understands raw I2C */
	101	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	102	ret = i2c_master_send(client, data, len);
1da177e4 LT	103
	104	/* Cache the written data */
	105	memcpy(decoder->reg + reg, data + 1, len - 1);
	106	} else {
	107	for (++data, --len; len; len--) {
e7946844	108	ret = saa7110_write(sd, reg++, *data++);
85ede69f	109	if (ret < 0)
1da177e4 LT	110	break;
	111	}
	112	}
	113
	114	return ret;
	115	}
	116
e7946844	117	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	118	{
e7946844 HV	119	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	120
1da177e4 LT	121	return i2c_smbus_read_byte(client);
	122	}
	123
	124	/* ----------------------------------------------------------------------- */
	125	/* SAA7110 functions */
	126	/* ----------------------------------------------------------------------- */
	127
e7946844 HV	128	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	129	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	130
1da177e4 LT	131
e7946844	132	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	133	{
	134	static const unsigned char modes[9][8] = {
	135	/* mode 0 */
	136	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	137	0x44, 0x75, 0x16},
	138	/* mode 1 */
	139	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	140	0x44, 0x75, 0x16},
	141	/* mode 2 */
	142	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	143	0x60, 0xB5, 0x05},
	144	/* mode 3 */
	145	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	146	0x60, 0xB5, 0x05},
	147	/* mode 4 */
	148	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	149	0x60, 0xB5, 0x03},
	150	/* mode 5 */
	151	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	152	0x60, 0xB5, 0x03},
	153	/* mode 6 */
	154	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	155	0x44, 0x75, 0x12},
	156	/* mode 7 */
	157	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	158	0x60, 0xB5, 0x14},
	159	/* mode 8 */
	160	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	161	0x44, 0x75, 0x21}
	162	};
e7946844	163	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	164	const unsigned char *ptr = modes[chan];
1da177e4 LT	165
e7946844 HV	166	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	167	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	168	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	169	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	170	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	171	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	172	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	173	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	174	decoder->input = chan;
	175
	176	return 0;
	177	}
	178
	179	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	180	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	181	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	182	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	183	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	184	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	185	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	186	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	187	};
	188
e7946844	189	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	190	{
1da177e4 LT	191	DEFINE_WAIT(wait);
e7946844	192	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	193	int status;
	194
	195	/* mode changed, start automatic detection */
e7946844 HV	196	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	197	saa7110_selmux(sd, decoder->input);
1da177e4	198	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	199	schedule_timeout(msecs_to_jiffies(250));
1da177e4	200	finish_wait(&decoder->wq, &wait);
e7946844	201	status = saa7110_read(sd);
1da177e4	202	if (status & 0x40) {
e7946844 HV	203	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
e7946844 HV	204	return decoder->norm; /* no change*/
1da177e4 LT	205	}
1da177e4 LT	206	if ((status & 3) == 0) {
e7946844	207	saa7110_write(sd, 0x06, 0x83);
1da177e4	208	if (status & 0x20) {
e7946844 HV	209	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	210	/saa7110_write(sd,0x2E,0x81);/
107063c6	211	return V4L2_STD_NTSC;
1da177e4	212	}
e7946844 HV	213	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	214	/saa7110_write(sd,0x2E,0x9A);/
107063c6	215	return V4L2_STD_PAL;
1da177e4	216	}
e7946844	217	/saa7110_write(sd,0x06,0x03);/
1da177e4	218	if (status & 0x20) { /* 60Hz */
e7946844 HV	219	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	220	saa7110_write(sd, 0x0D, 0x86);
	221	saa7110_write(sd, 0x0F, 0x50);
	222	saa7110_write(sd, 0x11, 0x2C);
	223	/saa7110_write(sd,0x2E,0x81);/
107063c6	224	return V4L2_STD_NTSC;
1da177e4 LT	225	}
	226
	227	/* 50Hz -> PAL/SECAM */
e7946844 HV	228	saa7110_write(sd, 0x0D, 0x86);
	229	saa7110_write(sd, 0x0F, 0x10);
	230	saa7110_write(sd, 0x11, 0x59);
	231	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	232
1da177e4 LT	233	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	234	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	235	finish_wait(&decoder->wq, &wait);
1da177e4 LT	236
e7946844	237	status = saa7110_read(sd);
1da177e4	238	if ((status & 0x03) == 0x01) {
e7946844 HV	239	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	240	saa7110_write(sd, 0x0D, 0x87);
107063c6	241	return V4L2_STD_SECAM;
1da177e4	242	}
e7946844	243	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	244	return V4L2_STD_PAL;
1da177e4 LT	245	}
1da177e4 LT	246
e7946844	247	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	248	{
e7946844 HV	249	struct saa7110 *decoder = to_saa7110(sd);
	250	int res = V4L2_IN_ST_NO_SIGNAL;
	251	int status = saa7110_read(sd);
	252
	253	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	254	status, (unsigned long long)decoder->norm);
e7946844 HV	255	if (!(status & 0x40))
	256	res = 0;
	257	if (!(status & 0x03))
	258	res \|= V4L2_IN_ST_NO_COLOR;
	259
	260	*pstatus = res;
	261	return 0;
	262	}
1da177e4	263
e7946844 HV	264	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
	265	{
	266	(v4l2_std_id )std = determine_norm(sd);
	267	return 0;
	268	}
1da177e4	269
e7946844 HV	270	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	271	{
	272	struct saa7110 *decoder = to_saa7110(sd);
	273
	274	if (decoder->norm != std) {
	275	decoder->norm = std;
	276	/saa7110_write(sd, 0x06, 0x03);/
	277	if (std & V4L2_STD_NTSC) {
	278	saa7110_write(sd, 0x0D, 0x86);
	279	saa7110_write(sd, 0x0F, 0x50);
	280	saa7110_write(sd, 0x11, 0x2C);
	281	/saa7110_write(sd, 0x2E, 0x81);/
	282	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	283	} else if (std & V4L2_STD_PAL) {
	284	saa7110_write(sd, 0x0D, 0x86);
	285	saa7110_write(sd, 0x0F, 0x10);
	286	saa7110_write(sd, 0x11, 0x59);
	287	/saa7110_write(sd, 0x2E, 0x9A);/
	288	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	289	} else if (std & V4L2_STD_SECAM) {
	290	saa7110_write(sd, 0x0D, 0x87);
	291	saa7110_write(sd, 0x0F, 0x10);
	292	saa7110_write(sd, 0x11, 0x59);
	293	/saa7110_write(sd, 0x2E, 0x9A);/
	294	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	295	} else {
	296	return -EINVAL;
	297	}
	298	}
	299	return 0;
	300	}
1da177e4	301
5325b427 HV	302	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	303	u32 input, u32 output, u32 config)
e7946844 HV	304	{
	305	struct saa7110 *decoder = to_saa7110(sd);
	306
5325b427 HV	307	if (input < 0 \|\| input >= SAA7110_MAX_INPUT) {
5325b427 HV	308	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	309	return -EINVAL;
85ede69f	310	}
5325b427 HV	311	if (decoder->input != input) {
	312	saa7110_selmux(sd, input);
	313	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	314	}
	315	return 0;
	316	}
1da177e4	317
e7946844 HV	318	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	319	{
	320	struct saa7110 *decoder = to_saa7110(sd);
	321
	322	if (decoder->enable != enable) {
	323	decoder->enable = enable;
	324	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	325	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	326	}
e7946844 HV	327	return 0;
e7946844 HV	328	}
107063c6	329
e7946844 HV	330	static int saa7110_queryctrl(struct v4l2_subdev sd, struct v4l2_queryctrl qc)
	331	{
	332	switch (qc->id) {
	333	case V4L2_CID_BRIGHTNESS:
	334	return v4l2_ctrl_query_fill(qc, 0, 255, 1, 128);
	335	case V4L2_CID_CONTRAST:
	336	case V4L2_CID_SATURATION:
	337	return v4l2_ctrl_query_fill(qc, 0, 127, 1, 64);
	338	case V4L2_CID_HUE:
	339	return v4l2_ctrl_query_fill(qc, -128, 127, 1, 0);
	340	default:
	341	return -EINVAL;
	342	}
	343	return 0;
	344	}
1da177e4	345
e7946844 HV	346	static int saa7110_g_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	347	{
	348	struct saa7110 *decoder = to_saa7110(sd);
	349
	350	switch (ctrl->id) {
	351	case V4L2_CID_BRIGHTNESS:
	352	ctrl->value = decoder->bright;
	353	break;
	354	case V4L2_CID_CONTRAST:
	355	ctrl->value = decoder->contrast;
	356	break;
	357	case V4L2_CID_SATURATION:
	358	ctrl->value = decoder->sat;
	359	break;
	360	case V4L2_CID_HUE:
	361	ctrl->value = decoder->hue;
1da177e4	362	break;
e7946844 HV	363	default:
	364	return -EINVAL;
	365	}
	366	return 0;
	367	}
1da177e4	368
e7946844 HV	369	static int saa7110_s_ctrl(struct v4l2_subdev sd, struct v4l2_control ctrl)
	370	{
	371	struct saa7110 *decoder = to_saa7110(sd);
	372
	373	switch (ctrl->id) {
	374	case V4L2_CID_BRIGHTNESS:
	375	if (decoder->bright != ctrl->value) {
	376	decoder->bright = ctrl->value;
	377	saa7110_write(sd, 0x19, decoder->bright);
1da177e4 LT	378	}
1da177e4 LT	379	break;
e7946844 HV	380	case V4L2_CID_CONTRAST:
	381	if (decoder->contrast != ctrl->value) {
	382	decoder->contrast = ctrl->value;
	383	saa7110_write(sd, 0x13, decoder->contrast);
1da177e4	384	}
107063c6	385	break;
e7946844 HV	386	case V4L2_CID_SATURATION:
	387	if (decoder->sat != ctrl->value) {
	388	decoder->sat = ctrl->value;
	389	saa7110_write(sd, 0x12, decoder->sat);
1da177e4	390	}
1da177e4	391	break;
e7946844 HV	392	case V4L2_CID_HUE:
	393	if (decoder->hue != ctrl->value) {
	394	decoder->hue = ctrl->value;
	395	saa7110_write(sd, 0x07, decoder->hue);
1da177e4 LT	396	}
1da177e4 LT	397	break;
1da177e4	398	default:
1da177e4 LT	399	return -EINVAL;
	400	}
	401	return 0;
	402	}
	403
e7946844 HV	404	static int saa7110_g_chip_ident(struct v4l2_subdev sd, struct v4l2_dbg_chip_ident chip)
	405	{
	406	struct i2c_client *client = v4l2_get_subdevdata(sd);
	407
	408	return v4l2_chip_ident_i2c_client(client, chip, V4L2_IDENT_SAA7110, 0);
	409	}
	410
1da177e4 LT	411	/* ----------------------------------------------------------------------- */
1da177e4 LT	412
e7946844 HV	413	static const struct v4l2_subdev_core_ops saa7110_core_ops = {
	414	.g_chip_ident = saa7110_g_chip_ident,
	415	.g_ctrl = saa7110_g_ctrl,
	416	.s_ctrl = saa7110_s_ctrl,
	417	.queryctrl = saa7110_queryctrl,
e7946844 HV	418	.s_std = saa7110_s_std,
e7946844 HV	419	};
1da177e4	420
e7946844 HV	421	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	422	.s_routing = saa7110_s_routing,
	423	.s_stream = saa7110_s_stream,
	424	.querystd = saa7110_querystd,
	425	.g_input_status = saa7110_g_input_status,
	426	};
	427
	428	static const struct v4l2_subdev_ops saa7110_ops = {
	429	.core = &saa7110_core_ops,
e7946844 HV	430	.video = &saa7110_video_ops,
	431	};
	432
	433	/* ----------------------------------------------------------------------- */
1da177e4	434
85ede69f HV	435	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	436	const struct i2c_device_id *id)
1da177e4	437	{
1da177e4	438	struct saa7110 *decoder;
e7946844	439	struct v4l2_subdev *sd;
1da177e4 LT	440	int rv;
1da177e4 LT	441
1da177e4	442	/* Check if the adapter supports the needed features */
85ede69f HV	443	if (!i2c_check_functionality(client->adapter,
	444	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	445	return -ENODEV;
1da177e4	446
85ede69f HV	447	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	448	client->addr << 1, client->adapter->name);
1da177e4	449
7408187d	450	decoder = kzalloc(sizeof(struct saa7110), GFP_KERNEL);
85ede69f	451	if (!decoder)
1da177e4	452	return -ENOMEM;
e7946844 HV	453	sd = &decoder->sd;
e7946844 HV	454	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	455	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	456	decoder->input = 0;
	457	decoder->enable = 1;
	458	decoder->bright = 32768;
	459	decoder->contrast = 32768;
	460	decoder->hue = 32768;
	461	decoder->sat = 32768;
	462	init_waitqueue_head(&decoder->wq);
1da177e4	463
e7946844	464	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	465	if (rv < 0) {
e7946844	466	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	467	} else {
1da177e4	468	int ver, status;
e7946844 HV	469	saa7110_write(sd, 0x21, 0x10);
	470	saa7110_write(sd, 0x0e, 0x18);
	471	saa7110_write(sd, 0x0D, 0x04);
	472	ver = saa7110_read(sd);
	473	saa7110_write(sd, 0x0D, 0x06);
	474	/mdelay(150);/
	475	status = saa7110_read(sd);
	476	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	477	ver, status);
e7946844 HV	478	saa7110_write(sd, 0x0D, 0x86);
	479	saa7110_write(sd, 0x0F, 0x10);
	480	saa7110_write(sd, 0x11, 0x59);
	481	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	482	}
1da177e4 LT	483
e7946844 HV	484	/saa7110_selmux(sd,0);/
e7946844 HV	485	/determine_norm(sd);/
1da177e4 LT	486	/* setup and implicit mode 0 select has been performed */
	487
	488	return 0;
	489	}
	490
85ede69f	491	static int saa7110_remove(struct i2c_client *client)
1da177e4	492	{
e7946844 HV	493	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	494
	495	v4l2_device_unregister_subdev(sd);
	496	kfree(to_saa7110(sd));
1da177e4 LT	497	return 0;
	498	}
	499
	500	/* ----------------------------------------------------------------------- */
	501
85ede69f HV	502	static const struct i2c_device_id saa7110_id[] = {
	503	{ "saa7110", 0 },
	504	{ }
	505	};
	506	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	507
85ede69f HV	508	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
85ede69f HV	509	.name = "saa7110",
85ede69f HV	510	.probe = saa7110_probe,
	511	.remove = saa7110_remove,
	512	.id_table = saa7110_id,
1da177e4	513	};