[deliverable/linux.git] / drivers / media / i2c / saa7110.c

/*
 * saa7110 - Philips SAA7110(A) video decoder driver
 *
 * Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
 *
 * Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
 * Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
 *    - some corrections for Pinnacle Systems Inc. DC10plus card.
 *
 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
 *    - moved over to linux>=2.4.x i2c protocol (1/1/2003)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * 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-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 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_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_core_ops saa7110_core_ops = {
	.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
	.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
	.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
	.g_ctrl = v4l2_subdev_g_ctrl,
	.s_ctrl = v4l2_subdev_s_ctrl,
	.queryctrl = v4l2_subdev_queryctrl,
	.querymenu = v4l2_subdev_querymenu,
	.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 = 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 = {
		.owner	= THIS_MODULE,
		.name	= "saa7110",
	},
	.probe		= saa7110_probe,
	.remove		= saa7110_remove,
	.id_table	= saa7110_id,
};

module_i2c_driver(saa7110_driver);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* saa7110 - Philips SAA7110(A) video decoder driver
	3	*
	4	* Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
	5	*
	6	* Copyright (C) 1999 Wolfgang Scherr <scherr@net4you.net>
	7	* Copyright (C) 2000 Serguei Miridonov <mirsev@cicese.mx>
	8	* - some corrections for Pinnacle Systems Inc. DC10plus card.
	9	*
	10	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	11	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	12	*
	13	* This program is free software; you can redistribute it and/or modify
	14	* it under the terms of the GNU General Public License as published by
	15	* the Free Software Foundation; either version 2 of the License, or
	16	* (at your option) any later version.
	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	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>
e7946844 HV	37	#include <media/v4l2-device.h>
4744ebf6	38	#include <media/v4l2-ctrls.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;
4744ebf6	56	struct v4l2_ctrl_handler hdl;
1da177e4 LT	57	u8 reg[SAA7110_NR_REG];
1da177e4 LT	58
107063c6	59	v4l2_std_id norm;
1da177e4 LT	60	int input;
1da177e4 LT	61	int enable;
1da177e4 LT	62
	63	wait_queue_head_t wq;
	64	};
	65
e7946844 HV	66	static inline struct saa7110 to_saa7110(struct v4l2_subdev sd)
	67	{
	68	return container_of(sd, struct saa7110, sd);
	69	}
	70
4744ebf6 HV	71	static inline struct v4l2_subdev to_sd(struct v4l2_ctrl ctrl)
	72	{
	73	return &container_of(ctrl->handler, struct saa7110, hdl)->sd;
	74	}
	75
1da177e4 LT	76	/* ----------------------------------------------------------------------- */
	77	/* I2C support functions */
	78	/* ----------------------------------------------------------------------- */
	79
e7946844	80	static int saa7110_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	81	{
e7946844 HV	82	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	83	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	84
	85	decoder->reg[reg] = value;
	86	return i2c_smbus_write_byte_data(client, reg, value);
	87	}
	88
e7946844	89	static int saa7110_write_block(struct v4l2_subdev sd, const u8 data, unsigned int len)
1da177e4	90	{
e7946844 HV	91	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	92	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	93	int ret = -1;
	94	u8 reg = data; / first register to write to */
	95
	96	/* Sanity check */
	97	if (reg + (len - 1) > SAA7110_NR_REG)
	98	return ret;
	99
	100	/* the saa7110 has an autoincrement function, use it if
	101	* the adapter understands raw I2C */
	102	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
9aa45e34	103	ret = i2c_master_send(client, data, len);
1da177e4 LT	104
	105	/* Cache the written data */
	106	memcpy(decoder->reg + reg, data + 1, len - 1);
	107	} else {
	108	for (++data, --len; len; len--) {
e7946844	109	ret = saa7110_write(sd, reg++, *data++);
85ede69f	110	if (ret < 0)
1da177e4 LT	111	break;
	112	}
	113	}
	114
	115	return ret;
	116	}
	117
e7946844	118	static inline int saa7110_read(struct v4l2_subdev *sd)
1da177e4	119	{
e7946844 HV	120	struct i2c_client *client = v4l2_get_subdevdata(sd);
e7946844 HV	121
1da177e4 LT	122	return i2c_smbus_read_byte(client);
	123	}
	124
	125	/* ----------------------------------------------------------------------- */
	126	/* SAA7110 functions */
	127	/* ----------------------------------------------------------------------- */
	128
e7946844 HV	129	#define FRESP_06H_COMPST 0x03 /0x13/
e7946844 HV	130	#define FRESP_06H_SVIDEO 0x83 /0xC0/
1da177e4 LT	131
1da177e4 LT	132
e7946844	133	static int saa7110_selmux(struct v4l2_subdev *sd, int chan)
1da177e4 LT	134	{
	135	static const unsigned char modes[9][8] = {
	136	/* mode 0 */
	137	{FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
	138	0x44, 0x75, 0x16},
	139	/* mode 1 */
	140	{FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
	141	0x44, 0x75, 0x16},
	142	/* mode 2 */
	143	{FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
	144	0x60, 0xB5, 0x05},
	145	/* mode 3 */
	146	{FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
	147	0x60, 0xB5, 0x05},
	148	/* mode 4 */
	149	{FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
	150	0x60, 0xB5, 0x03},
	151	/* mode 5 */
	152	{FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
	153	0x60, 0xB5, 0x03},
	154	/* mode 6 */
	155	{FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
	156	0x44, 0x75, 0x12},
	157	/* mode 7 */
	158	{FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
	159	0x60, 0xB5, 0x14},
	160	/* mode 8 */
	161	{FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
	162	0x44, 0x75, 0x21}
	163	};
e7946844	164	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	165	const unsigned char *ptr = modes[chan];
1da177e4 LT	166
e7946844 HV	167	saa7110_write(sd, 0x06, ptr[0]); /* Luminance control */
	168	saa7110_write(sd, 0x20, ptr[1]); /* Analog Control #1 */
	169	saa7110_write(sd, 0x21, ptr[2]); /* Analog Control #2 */
	170	saa7110_write(sd, 0x22, ptr[3]); /* Mixer Control #1 */
	171	saa7110_write(sd, 0x2C, ptr[4]); /* Mixer Control #2 */
	172	saa7110_write(sd, 0x30, ptr[5]); /* ADCs gain control */
	173	saa7110_write(sd, 0x31, ptr[6]); /* Mixer Control #3 */
	174	saa7110_write(sd, 0x21, ptr[7]); /* Analog Control #2 */
1da177e4 LT	175	decoder->input = chan;
	176
	177	return 0;
	178	}
	179
	180	static const unsigned char initseq[1 + SAA7110_NR_REG] = {
	181	0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF2, 0x03, 0x00,
	182	/* 0x08 */ 0xF8, 0xF8, 0x60, 0x60, 0x00, 0x86, 0x18, 0x90,
	183	/* 0x10 */ 0x00, 0x59, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
	184	/* 0x18 */ 0xF2, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
	185	/* 0x20 */ 0xD9, 0x16, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
	186	/* 0x28 */ 0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x03, 0x0C,
	187	/* 0x30 */ 0x44, 0x71, 0x02, 0x8C, 0x02
	188	};
	189
e7946844	190	static v4l2_std_id determine_norm(struct v4l2_subdev *sd)
1da177e4 LT	191	{
1da177e4 LT	192	DEFINE_WAIT(wait);
e7946844	193	struct saa7110 *decoder = to_saa7110(sd);
1da177e4 LT	194	int status;
	195
	196	/* mode changed, start automatic detection */
e7946844 HV	197	saa7110_write_block(sd, initseq, sizeof(initseq));
e7946844 HV	198	saa7110_selmux(sd, decoder->input);
1da177e4	199	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	200	schedule_timeout(msecs_to_jiffies(250));
1da177e4	201	finish_wait(&decoder->wq, &wait);
e7946844	202	status = saa7110_read(sd);
1da177e4	203	if (status & 0x40) {
e7946844 HV	204	v4l2_dbg(1, debug, sd, "status=0x%02x (no signal)\n", status);
e7946844 HV	205	return decoder->norm; /* no change*/
1da177e4 LT	206	}
1da177e4 LT	207	if ((status & 3) == 0) {
e7946844	208	saa7110_write(sd, 0x06, 0x83);
1da177e4	209	if (status & 0x20) {
e7946844 HV	210	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC/no color)\n", status);
e7946844 HV	211	/saa7110_write(sd,0x2E,0x81);/
107063c6	212	return V4L2_STD_NTSC;
1da177e4	213	}
e7946844 HV	214	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL/no color)\n", status);
e7946844 HV	215	/saa7110_write(sd,0x2E,0x9A);/
107063c6	216	return V4L2_STD_PAL;
1da177e4	217	}
e7946844	218	/saa7110_write(sd,0x06,0x03);/
1da177e4	219	if (status & 0x20) { /* 60Hz */
e7946844 HV	220	v4l2_dbg(1, debug, sd, "status=0x%02x (NTSC)\n", status);
	221	saa7110_write(sd, 0x0D, 0x86);
	222	saa7110_write(sd, 0x0F, 0x50);
	223	saa7110_write(sd, 0x11, 0x2C);
	224	/saa7110_write(sd,0x2E,0x81);/
107063c6	225	return V4L2_STD_NTSC;
1da177e4 LT	226	}
	227
	228	/* 50Hz -> PAL/SECAM */
e7946844 HV	229	saa7110_write(sd, 0x0D, 0x86);
	230	saa7110_write(sd, 0x0F, 0x10);
	231	saa7110_write(sd, 0x11, 0x59);
	232	/saa7110_write(sd,0x2E,0x9A);/
1da177e4 LT	233
1da177e4 LT	234	prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
09df5cbe	235	schedule_timeout(msecs_to_jiffies(250));
1da177e4 LT	236	finish_wait(&decoder->wq, &wait);
1da177e4 LT	237
e7946844	238	status = saa7110_read(sd);
1da177e4	239	if ((status & 0x03) == 0x01) {
e7946844 HV	240	v4l2_dbg(1, debug, sd, "status=0x%02x (SECAM)\n", status);
e7946844 HV	241	saa7110_write(sd, 0x0D, 0x87);
107063c6	242	return V4L2_STD_SECAM;
1da177e4	243	}
e7946844	244	v4l2_dbg(1, debug, sd, "status=0x%02x (PAL)\n", status);
107063c6	245	return V4L2_STD_PAL;
1da177e4 LT	246	}
1da177e4 LT	247
e7946844	248	static int saa7110_g_input_status(struct v4l2_subdev sd, u32 pstatus)
1da177e4	249	{
e7946844 HV	250	struct saa7110 *decoder = to_saa7110(sd);
	251	int res = V4L2_IN_ST_NO_SIGNAL;
	252	int status = saa7110_read(sd);
	253
	254	v4l2_dbg(1, debug, sd, "status=0x%02x norm=%llx\n",
cc5cef8e	255	status, (unsigned long long)decoder->norm);
e7946844 HV	256	if (!(status & 0x40))
	257	res = 0;
	258	if (!(status & 0x03))
	259	res \|= V4L2_IN_ST_NO_COLOR;
	260
	261	*pstatus = res;
	262	return 0;
	263	}
1da177e4	264
e7946844 HV	265	static int saa7110_querystd(struct v4l2_subdev sd, v4l2_std_id std)
	266	{
	267	(v4l2_std_id )std = determine_norm(sd);
	268	return 0;
	269	}
1da177e4	270
e7946844 HV	271	static int saa7110_s_std(struct v4l2_subdev *sd, v4l2_std_id std)
	272	{
	273	struct saa7110 *decoder = to_saa7110(sd);
	274
	275	if (decoder->norm != std) {
	276	decoder->norm = std;
	277	/saa7110_write(sd, 0x06, 0x03);/
	278	if (std & V4L2_STD_NTSC) {
	279	saa7110_write(sd, 0x0D, 0x86);
	280	saa7110_write(sd, 0x0F, 0x50);
	281	saa7110_write(sd, 0x11, 0x2C);
	282	/saa7110_write(sd, 0x2E, 0x81);/
	283	v4l2_dbg(1, debug, sd, "switched to NTSC\n");
	284	} else if (std & V4L2_STD_PAL) {
	285	saa7110_write(sd, 0x0D, 0x86);
	286	saa7110_write(sd, 0x0F, 0x10);
	287	saa7110_write(sd, 0x11, 0x59);
	288	/saa7110_write(sd, 0x2E, 0x9A);/
	289	v4l2_dbg(1, debug, sd, "switched to PAL\n");
	290	} else if (std & V4L2_STD_SECAM) {
	291	saa7110_write(sd, 0x0D, 0x87);
	292	saa7110_write(sd, 0x0F, 0x10);
	293	saa7110_write(sd, 0x11, 0x59);
	294	/saa7110_write(sd, 0x2E, 0x9A);/
	295	v4l2_dbg(1, debug, sd, "switched to SECAM\n");
	296	} else {
	297	return -EINVAL;
	298	}
	299	}
	300	return 0;
	301	}
1da177e4	302
5325b427 HV	303	static int saa7110_s_routing(struct v4l2_subdev *sd,
5325b427 HV	304	u32 input, u32 output, u32 config)
e7946844 HV	305	{
	306	struct saa7110 *decoder = to_saa7110(sd);
	307
f14a2972	308	if (input >= SAA7110_MAX_INPUT) {
5325b427	309	v4l2_dbg(1, debug, sd, "input=%d not available\n", input);
e7946844	310	return -EINVAL;
85ede69f	311	}
5325b427 HV	312	if (decoder->input != input) {
	313	saa7110_selmux(sd, input);
	314	v4l2_dbg(1, debug, sd, "switched to input=%d\n", input);
e7946844 HV	315	}
	316	return 0;
	317	}
1da177e4	318
e7946844 HV	319	static int saa7110_s_stream(struct v4l2_subdev *sd, int enable)
	320	{
	321	struct saa7110 *decoder = to_saa7110(sd);
	322
	323	if (decoder->enable != enable) {
	324	decoder->enable = enable;
	325	saa7110_write(sd, 0x0E, enable ? 0x18 : 0x80);
	326	v4l2_dbg(1, debug, sd, "YUV %s\n", enable ? "on" : "off");
107063c6	327	}
e7946844 HV	328	return 0;
e7946844 HV	329	}
107063c6	330
4744ebf6	331	static int saa7110_s_ctrl(struct v4l2_ctrl *ctrl)
e7946844	332	{
4744ebf6	333	struct v4l2_subdev *sd = to_sd(ctrl);
e7946844 HV	334
	335	switch (ctrl->id) {
	336	case V4L2_CID_BRIGHTNESS:
4744ebf6	337	saa7110_write(sd, 0x19, ctrl->val);
1da177e4	338	break;
e7946844	339	case V4L2_CID_CONTRAST:
4744ebf6	340	saa7110_write(sd, 0x13, ctrl->val);
107063c6	341	break;
e7946844	342	case V4L2_CID_SATURATION:
4744ebf6	343	saa7110_write(sd, 0x12, ctrl->val);
1da177e4	344	break;
e7946844	345	case V4L2_CID_HUE:
4744ebf6	346	saa7110_write(sd, 0x07, ctrl->val);
1da177e4	347	break;
1da177e4	348	default:
1da177e4 LT	349	return -EINVAL;
	350	}
	351	return 0;
	352	}
	353
	354	/* ----------------------------------------------------------------------- */
	355
4744ebf6 HV	356	static const struct v4l2_ctrl_ops saa7110_ctrl_ops = {
	357	.s_ctrl = saa7110_s_ctrl,
	358	};
	359
e7946844	360	static const struct v4l2_subdev_core_ops saa7110_core_ops = {
4744ebf6 HV	361	.g_ext_ctrls = v4l2_subdev_g_ext_ctrls,
	362	.try_ext_ctrls = v4l2_subdev_try_ext_ctrls,
	363	.s_ext_ctrls = v4l2_subdev_s_ext_ctrls,
	364	.g_ctrl = v4l2_subdev_g_ctrl,
	365	.s_ctrl = v4l2_subdev_s_ctrl,
	366	.queryctrl = v4l2_subdev_queryctrl,
	367	.querymenu = v4l2_subdev_querymenu,
e7946844 HV	368	.s_std = saa7110_s_std,
e7946844 HV	369	};
1da177e4	370
e7946844 HV	371	static const struct v4l2_subdev_video_ops saa7110_video_ops = {
	372	.s_routing = saa7110_s_routing,
	373	.s_stream = saa7110_s_stream,
	374	.querystd = saa7110_querystd,
	375	.g_input_status = saa7110_g_input_status,
	376	};
	377
	378	static const struct v4l2_subdev_ops saa7110_ops = {
	379	.core = &saa7110_core_ops,
e7946844 HV	380	.video = &saa7110_video_ops,
	381	};
	382
	383	/* ----------------------------------------------------------------------- */
1da177e4	384
85ede69f HV	385	static int saa7110_probe(struct i2c_client *client,
85ede69f HV	386	const struct i2c_device_id *id)
1da177e4	387	{
1da177e4	388	struct saa7110 *decoder;
e7946844	389	struct v4l2_subdev *sd;
1da177e4 LT	390	int rv;
1da177e4 LT	391
1da177e4	392	/* Check if the adapter supports the needed features */
85ede69f HV	393	if (!i2c_check_functionality(client->adapter,
	394	I2C_FUNC_SMBUS_READ_BYTE \| I2C_FUNC_SMBUS_WRITE_BYTE_DATA))
	395	return -ENODEV;
1da177e4	396
85ede69f HV	397	v4l_info(client, "chip found @ 0x%x (%s)\n",
85ede69f HV	398	client->addr << 1, client->adapter->name);
1da177e4	399
c02b211d	400	decoder = devm_kzalloc(&client->dev, sizeof(*decoder), GFP_KERNEL);
85ede69f	401	if (!decoder)
1da177e4	402	return -ENOMEM;
e7946844 HV	403	sd = &decoder->sd;
e7946844 HV	404	v4l2_i2c_subdev_init(sd, client, &saa7110_ops);
107063c6	405	decoder->norm = V4L2_STD_PAL;
1da177e4 LT	406	decoder->input = 0;
1da177e4 LT	407	decoder->enable = 1;
4744ebf6 HV	408	v4l2_ctrl_handler_init(&decoder->hdl, 2);
	409	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	410	V4L2_CID_BRIGHTNESS, 0, 255, 1, 128);
	411	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	412	V4L2_CID_CONTRAST, 0, 127, 1, 64);
	413	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	414	V4L2_CID_SATURATION, 0, 127, 1, 64);
	415	v4l2_ctrl_new_std(&decoder->hdl, &saa7110_ctrl_ops,
	416	V4L2_CID_HUE, -128, 127, 1, 0);
	417	sd->ctrl_handler = &decoder->hdl;
	418	if (decoder->hdl.error) {
	419	int err = decoder->hdl.error;
	420
	421	v4l2_ctrl_handler_free(&decoder->hdl);
4744ebf6 HV	422	return err;
	423	}
	424	v4l2_ctrl_handler_setup(&decoder->hdl);
	425
1da177e4	426	init_waitqueue_head(&decoder->wq);
1da177e4	427
e7946844	428	rv = saa7110_write_block(sd, initseq, sizeof(initseq));
85ede69f	429	if (rv < 0) {
e7946844	430	v4l2_dbg(1, debug, sd, "init status %d\n", rv);
85ede69f	431	} else {
1da177e4	432	int ver, status;
e7946844 HV	433	saa7110_write(sd, 0x21, 0x10);
	434	saa7110_write(sd, 0x0e, 0x18);
	435	saa7110_write(sd, 0x0D, 0x04);
	436	ver = saa7110_read(sd);
	437	saa7110_write(sd, 0x0D, 0x06);
	438	/mdelay(150);/
	439	status = saa7110_read(sd);
	440	v4l2_dbg(1, debug, sd, "version %x, status=0x%02x\n",
85ede69f	441	ver, status);
e7946844 HV	442	saa7110_write(sd, 0x0D, 0x86);
	443	saa7110_write(sd, 0x0F, 0x10);
	444	saa7110_write(sd, 0x11, 0x59);
	445	/saa7110_write(sd, 0x2E, 0x9A);/
1da177e4 LT	446	}
1da177e4 LT	447
e7946844 HV	448	/saa7110_selmux(sd,0);/
e7946844 HV	449	/determine_norm(sd);/
1da177e4 LT	450	/* setup and implicit mode 0 select has been performed */
	451
	452	return 0;
	453	}
	454
85ede69f	455	static int saa7110_remove(struct i2c_client *client)
1da177e4	456	{
e7946844	457	struct v4l2_subdev *sd = i2c_get_clientdata(client);
4744ebf6	458	struct saa7110 *decoder = to_saa7110(sd);
e7946844 HV	459
e7946844 HV	460	v4l2_device_unregister_subdev(sd);
4744ebf6	461	v4l2_ctrl_handler_free(&decoder->hdl);
1da177e4 LT	462	return 0;
	463	}
	464
	465	/* ----------------------------------------------------------------------- */
	466
85ede69f HV	467	static const struct i2c_device_id saa7110_id[] = {
	468	{ "saa7110", 0 },
	469	{ }
	470	};
	471	MODULE_DEVICE_TABLE(i2c, saa7110_id);
1da177e4	472
ff6e5422 HV	473	static struct i2c_driver saa7110_driver = {
	474	.driver = {
	475	.owner = THIS_MODULE,
	476	.name = "saa7110",
	477	},
	478	.probe = saa7110_probe,
	479	.remove = saa7110_remove,
	480	.id_table = saa7110_id,
1da177e4	481	};
ff6e5422	482
c6e8d86f	483	module_i2c_driver(saa7110_driver);