[deliverable/linux.git] / drivers / media / i2c / saa7185.c

/*
 * saa7185 - Philips SAA7185B video encoder driver version 0.0.3
 *
 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
 *
 * Slight changes for video timing and attachment output by
 * Wolfgang Scherr <scherr@net4you.net>
 *
 * 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/types.h>
#include <linux/slab.h>
#include <linux/ioctl.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <linux/videodev2.h>
#include <media/v4l2-device.h>

MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
MODULE_AUTHOR("Dave Perks");
MODULE_LICENSE("GPL");

static int debug;
module_param(debug, int, 0);
MODULE_PARM_DESC(debug, "Debug level (0-1)");


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

struct saa7185 {
	struct v4l2_subdev sd;
	unsigned char reg[128];

	v4l2_std_id norm;
};

static inline struct saa7185 *to_saa7185(struct v4l2_subdev *sd)
{
	return container_of(sd, struct saa7185, sd);
}

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

static inline int saa7185_read(struct v4l2_subdev *sd)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);

	return i2c_smbus_read_byte(client);
}

static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7185 *encoder = to_saa7185(sd);

	v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
	encoder->reg[reg] = value;
	return i2c_smbus_write_byte_data(client, reg, value);
}

static int saa7185_write_block(struct v4l2_subdev *sd,
		const u8 *data, unsigned int len)
{
	struct i2c_client *client = v4l2_get_subdevdata(sd);
	struct saa7185 *encoder = to_saa7185(sd);
	int ret = -1;
	u8 reg;

	/* the adv7175 has an autoincrement function, use it if
	 * the adapter understands raw I2C */
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
		/* do raw I2C, not smbus compatible */
		u8 block_data[32];
		int block_len;

		while (len >= 2) {
			block_len = 0;
			block_data[block_len++] = reg = data[0];
			do {
				block_data[block_len++] =
				    encoder->reg[reg++] = data[1];
				len -= 2;
				data += 2;
			} while (len >= 2 && data[0] == reg && block_len < 32);
			ret = i2c_master_send(client, block_data, block_len);
			if (ret < 0)
				break;
		}
	} else {
		/* do some slow I2C emulation kind of thing */
		while (len >= 2) {
			reg = *data++;
			ret = saa7185_write(sd, reg, *data++);
			if (ret < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

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

static const unsigned char init_common[] = {
	0x3a, 0x0f,		/* CBENB=0, V656=0, VY2C=1,
				 * YUV2C=1, MY2C=1, MUV2C=1 */

	0x42, 0x6b,		/* OVLY0=107 */
	0x43, 0x00,		/* OVLU0=0     white */
	0x44, 0x00,		/* OVLV0=0   */
	0x45, 0x22,		/* OVLY1=34  */
	0x46, 0xac,		/* OVLU1=172   yellow */
	0x47, 0x0e,		/* OVLV1=14  */
	0x48, 0x03,		/* OVLY2=3   */
	0x49, 0x1d,		/* OVLU2=29    cyan */
	0x4a, 0xac,		/* OVLV2=172 */
	0x4b, 0xf0,		/* OVLY3=240 */
	0x4c, 0xc8,		/* OVLU3=200   green */
	0x4d, 0xb9,		/* OVLV3=185 */
	0x4e, 0xd4,		/* OVLY4=212 */
	0x4f, 0x38,		/* OVLU4=56    magenta */
	0x50, 0x47,		/* OVLV4=71  */
	0x51, 0xc1,		/* OVLY5=193 */
	0x52, 0xe3,		/* OVLU5=227   red */
	0x53, 0x54,		/* OVLV5=84  */
	0x54, 0xa3,		/* OVLY6=163 */
	0x55, 0x54,		/* OVLU6=84    blue */
	0x56, 0xf2,		/* OVLV6=242 */
	0x57, 0x90,		/* OVLY7=144 */
	0x58, 0x00,		/* OVLU7=0     black */
	0x59, 0x00,		/* OVLV7=0   */

	0x5a, 0x00,		/* CHPS=0    */
	0x5b, 0x76,		/* GAINU=118 */
	0x5c, 0xa5,		/* GAINV=165 */
	0x5d, 0x3c,		/* BLCKL=60  */
	0x5e, 0x3a,		/* BLNNL=58  */
	0x5f, 0x3a,		/* CCRS=0, BLNVB=58 */
	0x60, 0x00,		/* NULL      */

	/* 0x61 - 0x66 set according to norm */

	0x67, 0x00,		/* 0 : caption 1st byte odd  field */
	0x68, 0x00,		/* 0 : caption 2nd byte odd  field */
	0x69, 0x00,		/* 0 : caption 1st byte even field */
	0x6a, 0x00,		/* 0 : caption 2nd byte even field */

	0x6b, 0x91,		/* MODIN=2, PCREF=0, SCCLN=17 */
	0x6c, 0x20,		/* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
				 * CBLF=0, ORCV2=0, PRCV2=0 */
	0x6d, 0x00,		/* SRCM1=0, CCEN=0 */

	0x6e, 0x0e,		/* HTRIG=0x005, approx. centered, at
				 * least for PAL */
	0x6f, 0x00,		/* HTRIG upper bits */
	0x70, 0x20,		/* PHRES=0, SBLN=1, VTRIG=0 */

	/* The following should not be needed */

	0x71, 0x15,		/* BMRQ=0x115 */
	0x72, 0x90,		/* EMRQ=0x690 */
	0x73, 0x61,		/* EMRQ=0x690, BMRQ=0x115 */
	0x74, 0x00,		/* NULL       */
	0x75, 0x00,		/* NULL       */
	0x76, 0x00,		/* NULL       */
	0x77, 0x15,		/* BRCV=0x115 */
	0x78, 0x90,		/* ERCV=0x690 */
	0x79, 0x61,		/* ERCV=0x690, BRCV=0x115 */

	/* Field length controls */

	0x7a, 0x70,		/* FLC=0 */

	/* The following should not be needed if SBLN = 1 */

	0x7b, 0x16,		/* FAL=22 */
	0x7c, 0x35,		/* LAL=244 */
	0x7d, 0x20,		/* LAL=244, FAL=22 */
};

static const unsigned char init_pal[] = {
	0x61, 0x1e,		/* FISE=0, PAL=1, SCBW=1, RTCE=1,
				 * YGS=1, INPI=0, DOWN=0 */
	0x62, 0xc8,		/* DECTYP=1, BSTA=72 */
	0x63, 0xcb,		/* FSC0 */
	0x64, 0x8a,		/* FSC1 */
	0x65, 0x09,		/* FSC2 */
	0x66, 0x2a,		/* FSC3 */
};

static const unsigned char init_ntsc[] = {
	0x61, 0x1d,		/* FISE=1, PAL=0, SCBW=1, RTCE=1,
				 * YGS=1, INPI=0, DOWN=0 */
	0x62, 0xe6,		/* DECTYP=1, BSTA=102 */
	0x63, 0x1f,		/* FSC0 */
	0x64, 0x7c,		/* FSC1 */
	0x65, 0xf0,		/* FSC2 */
	0x66, 0x21,		/* FSC3 */
};


static int saa7185_init(struct v4l2_subdev *sd, u32 val)
{
	struct saa7185 *encoder = to_saa7185(sd);

	saa7185_write_block(sd, init_common, sizeof(init_common));
	if (encoder->norm & V4L2_STD_NTSC)
		saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
	else
		saa7185_write_block(sd, init_pal, sizeof(init_pal));
	return 0;
}

static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
{
	struct saa7185 *encoder = to_saa7185(sd);

	if (std & V4L2_STD_NTSC)
		saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
	else if (std & V4L2_STD_PAL)
		saa7185_write_block(sd, init_pal, sizeof(init_pal));
	else
		return -EINVAL;
	encoder->norm = std;
	return 0;
}

static int saa7185_s_routing(struct v4l2_subdev *sd,
			     u32 input, u32 output, u32 config)
{
	struct saa7185 *encoder = to_saa7185(sd);

	/* RJ: input = 0: input is from SA7111
	 input = 1: input is from ZR36060 */

	switch (input) {
	case 0:
		/* turn off colorbar */
		saa7185_write(sd, 0x3a, 0x0f);
		/* Switch RTCE to 1 */
		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
		saa7185_write(sd, 0x6e, 0x01);
		break;

	case 1:
		/* turn off colorbar */
		saa7185_write(sd, 0x3a, 0x0f);
		/* Switch RTCE to 0 */
		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x00);
		/* SW: a slight sync problem... */
		saa7185_write(sd, 0x6e, 0x00);
		break;

	case 2:
		/* turn on colorbar */
		saa7185_write(sd, 0x3a, 0x8f);
		/* Switch RTCE to 0 */
		saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) | 0x08);
		/* SW: a slight sync problem... */
		saa7185_write(sd, 0x6e, 0x01);
		break;

	default:
		return -EINVAL;
	}
	return 0;
}

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

static const struct v4l2_subdev_core_ops saa7185_core_ops = {
	.init = saa7185_init,
};

static const struct v4l2_subdev_video_ops saa7185_video_ops = {
	.s_std_output = saa7185_s_std_output,
	.s_routing = saa7185_s_routing,
};

static const struct v4l2_subdev_ops saa7185_ops = {
	.core = &saa7185_core_ops,
	.video = &saa7185_video_ops,
};


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

static int saa7185_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	int i;
	struct saa7185 *encoder;
	struct v4l2_subdev *sd;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return -ENODEV;

	v4l_info(client, "chip found @ 0x%x (%s)\n",
			client->addr << 1, client->adapter->name);

	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
	if (encoder == NULL)
		return -ENOMEM;
	encoder->norm = V4L2_STD_NTSC;
	sd = &encoder->sd;
	v4l2_i2c_subdev_init(sd, client, &saa7185_ops);

	i = saa7185_write_block(sd, init_common, sizeof(init_common));
	if (i >= 0)
		i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
	if (i < 0)
		v4l2_dbg(1, debug, sd, "init error %d\n", i);
	else
		v4l2_dbg(1, debug, sd, "revision 0x%x\n",
				saa7185_read(sd) >> 5);
	return 0;
}

static int saa7185_remove(struct i2c_client *client)
{
	struct v4l2_subdev *sd = i2c_get_clientdata(client);
	struct saa7185 *encoder = to_saa7185(sd);

	v4l2_device_unregister_subdev(sd);
	/* SW: output off is active */
	saa7185_write(sd, 0x61, (encoder->reg[0x61]) | 0x40);
	return 0;
}

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

static const struct i2c_device_id saa7185_id[] = {
	{ "saa7185", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, saa7185_id);

static struct i2c_driver saa7185_driver = {
	.driver = {
		.owner	= THIS_MODULE,
		.name	= "saa7185",
	},
	.probe		= saa7185_probe,
	.remove		= saa7185_remove,
	.id_table	= saa7185_id,
};

module_i2c_driver(saa7185_driver);
Commit	Line	Data
d56410e0	1	/*
1da177e4 LT	2	* saa7185 - Philips SAA7185B video encoder driver version 0.0.3
	3	*
	4	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	5	*
	6	* Slight changes for video timing and attachment output by
	7	* Wolfgang Scherr <scherr@net4you.net>
	8	*
	9	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	10	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	25	*/
	26
	27	#include <linux/module.h>
18f3fa1e	28	#include <linux/types.h>
5a0e3ad6	29	#include <linux/slab.h>
0afb351e	30	#include <linux/ioctl.h>
18f3fa1e	31	#include <asm/uaccess.h>
0afb351e	32	#include <linux/i2c.h>
780d8e15 HV	33	#include <linux/videodev2.h>
780d8e15 HV	34	#include <media/v4l2-device.h>
1da177e4 LT	35
	36	MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
	37	MODULE_AUTHOR("Dave Perks");
	38	MODULE_LICENSE("GPL");
	39
ff699e6b	40	static int debug;
1da177e4 LT	41	module_param(debug, int, 0);
	42	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	43
780d8e15	44
1da177e4 LT	45	/* ----------------------------------------------------------------------- */
	46
	47	struct saa7185 {
780d8e15	48	struct v4l2_subdev sd;
1da177e4 LT	49	unsigned char reg[128];
1da177e4 LT	50
107063c6	51	v4l2_std_id norm;
1da177e4 LT	52	};
1da177e4 LT	53
780d8e15 HV	54	static inline struct saa7185 to_saa7185(struct v4l2_subdev sd)
	55	{
	56	return container_of(sd, struct saa7185, sd);
	57	}
	58
1da177e4 LT	59	/* ----------------------------------------------------------------------- */
1da177e4 LT	60
780d8e15	61	static inline int saa7185_read(struct v4l2_subdev *sd)
1da177e4	62	{
780d8e15 HV	63	struct i2c_client *client = v4l2_get_subdevdata(sd);
780d8e15 HV	64
1da177e4 LT	65	return i2c_smbus_read_byte(client);
	66	}
	67
780d8e15	68	static int saa7185_write(struct v4l2_subdev *sd, u8 reg, u8 value)
1da177e4	69	{
780d8e15 HV	70	struct i2c_client *client = v4l2_get_subdevdata(sd);
780d8e15 HV	71	struct saa7185 *encoder = to_saa7185(sd);
1da177e4	72
780d8e15	73	v4l2_dbg(1, debug, sd, "%02x set to %02x\n", reg, value);
1da177e4 LT	74	encoder->reg[reg] = value;
	75	return i2c_smbus_write_byte_data(client, reg, value);
	76	}
	77
780d8e15	78	static int saa7185_write_block(struct v4l2_subdev *sd,
0afb351e	79	const u8 *data, unsigned int len)
1da177e4	80	{
780d8e15 HV	81	struct i2c_client *client = v4l2_get_subdevdata(sd);
780d8e15 HV	82	struct saa7185 *encoder = to_saa7185(sd);
1da177e4 LT	83	int ret = -1;
	84	u8 reg;
	85
	86	/* the adv7175 has an autoincrement function, use it if
	87	* the adapter understands raw I2C */
	88	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	89	/* do raw I2C, not smbus compatible */
1da177e4	90	u8 block_data[32];
9aa45e34	91	int block_len;
1da177e4	92
1da177e4	93	while (len >= 2) {
9aa45e34 JD	94	block_len = 0;
9aa45e34 JD	95	block_data[block_len++] = reg = data[0];
1da177e4	96	do {
9aa45e34	97	block_data[block_len++] =
1da177e4 LT	98	encoder->reg[reg++] = data[1];
	99	len -= 2;
	100	data += 2;
0afb351e HV	101	} while (len >= 2 && data[0] == reg && block_len < 32);
	102	ret = i2c_master_send(client, block_data, block_len);
	103	if (ret < 0)
1da177e4 LT	104	break;
	105	}
	106	} else {
	107	/* do some slow I2C emulation kind of thing */
	108	while (len >= 2) {
	109	reg = *data++;
780d8e15	110	ret = saa7185_write(sd, reg, *data++);
0afb351e	111	if (ret < 0)
1da177e4 LT	112	break;
	113	len -= 2;
	114	}
	115	}
	116
	117	return ret;
	118	}
	119
	120	/* ----------------------------------------------------------------------- */
	121
	122	static const unsigned char init_common[] = {
	123	0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1,
	124	* YUV2C=1, MY2C=1, MUV2C=1 */
	125
	126	0x42, 0x6b, /* OVLY0=107 */
	127	0x43, 0x00, /* OVLU0=0 white */
	128	0x44, 0x00, /* OVLV0=0 */
	129	0x45, 0x22, /* OVLY1=34 */
	130	0x46, 0xac, /* OVLU1=172 yellow */
	131	0x47, 0x0e, /* OVLV1=14 */
	132	0x48, 0x03, /* OVLY2=3 */
	133	0x49, 0x1d, /* OVLU2=29 cyan */
	134	0x4a, 0xac, /* OVLV2=172 */
	135	0x4b, 0xf0, /* OVLY3=240 */
	136	0x4c, 0xc8, /* OVLU3=200 green */
	137	0x4d, 0xb9, /* OVLV3=185 */
	138	0x4e, 0xd4, /* OVLY4=212 */
	139	0x4f, 0x38, /* OVLU4=56 magenta */
	140	0x50, 0x47, /* OVLV4=71 */
	141	0x51, 0xc1, /* OVLY5=193 */
	142	0x52, 0xe3, /* OVLU5=227 red */
	143	0x53, 0x54, /* OVLV5=84 */
	144	0x54, 0xa3, /* OVLY6=163 */
	145	0x55, 0x54, /* OVLU6=84 blue */
	146	0x56, 0xf2, /* OVLV6=242 */
	147	0x57, 0x90, /* OVLY7=144 */
	148	0x58, 0x00, /* OVLU7=0 black */
	149	0x59, 0x00, /* OVLV7=0 */
	150
	151	0x5a, 0x00, /* CHPS=0 */
	152	0x5b, 0x76, /* GAINU=118 */
	153	0x5c, 0xa5, /* GAINV=165 */
	154	0x5d, 0x3c, /* BLCKL=60 */
	155	0x5e, 0x3a, /* BLNNL=58 */
	156	0x5f, 0x3a, /* CCRS=0, BLNVB=58 */
	157	0x60, 0x00, /* NULL */
	158
	159	/* 0x61 - 0x66 set according to norm */
	160
	161	0x67, 0x00, /* 0 : caption 1st byte odd field */
	162	0x68, 0x00, /* 0 : caption 2nd byte odd field */
	163	0x69, 0x00, /* 0 : caption 1st byte even field */
	164	0x6a, 0x00, /* 0 : caption 2nd byte even field */
	165
	166	0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */
	167	0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
	168	* CBLF=0, ORCV2=0, PRCV2=0 */
	169	0x6d, 0x00, /* SRCM1=0, CCEN=0 */
	170
	171	0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at
	172	* least for PAL */
	173	0x6f, 0x00, /* HTRIG upper bits */
	174	0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */
	175
176	/* The following should not be needed */
177
178	0x71, 0x15, /* BMRQ=0x115 */
179	0x72, 0x90, /* EMRQ=0x690 */
180	0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */
181	0x74, 0x00, /* NULL */
182	0x75, 0x00, /* NULL */
183	0x76, 0x00, /* NULL */
184	0x77, 0x15, /* BRCV=0x115 */
185	0x78, 0x90, /* ERCV=0x690 */
186	0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */
187
188	/* Field length controls */
189
190	0x7a, 0x70, /* FLC=0 */
191
192	/* The following should not be needed if SBLN = 1 */
193
194	0x7b, 0x16, /* FAL=22 */
195	0x7c, 0x35, /* LAL=244 */
196	0x7d, 0x20, /* LAL=244, FAL=22 */
197	};
198
199	static const unsigned char init_pal[] = {
200	0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1,
201	* YGS=1, INPI=0, DOWN=0 */
202	0x62, 0xc8, /* DECTYP=1, BSTA=72 */
203	0x63, 0xcb, /* FSC0 */
204	0x64, 0x8a, /* FSC1 */
205	0x65, 0x09, /* FSC2 */
206	0x66, 0x2a, /* FSC3 */
207	};
208
209	static const unsigned char init_ntsc[] = {
210	0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1,
211	* YGS=1, INPI=0, DOWN=0 */
212	0x62, 0xe6, /* DECTYP=1, BSTA=102 */
213	0x63, 0x1f, /* FSC0 */
214	0x64, 0x7c, /* FSC1 */
215	0x65, 0xf0, /* FSC2 */
216	0x66, 0x21, /* FSC3 */
217	};
218
780d8e15 HV	219
	220	static int saa7185_init(struct v4l2_subdev *sd, u32 val)
	221	{
	222	struct saa7185 *encoder = to_saa7185(sd);
	223
	224	saa7185_write_block(sd, init_common, sizeof(init_common));
	225	if (encoder->norm & V4L2_STD_NTSC)
	226	saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
	227	else
	228	saa7185_write_block(sd, init_pal, sizeof(init_pal));
	229	return 0;
	230	}
	231
	232	static int saa7185_s_std_output(struct v4l2_subdev *sd, v4l2_std_id std)
	233	{
	234	struct saa7185 *encoder = to_saa7185(sd);
	235
	236	if (std & V4L2_STD_NTSC)
	237	saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
	238	else if (std & V4L2_STD_PAL)
	239	saa7185_write_block(sd, init_pal, sizeof(init_pal));
	240	else
	241	return -EINVAL;
	242	encoder->norm = std;
	243	return 0;
	244	}
	245
5325b427 HV	246	static int saa7185_s_routing(struct v4l2_subdev *sd,
5325b427 HV	247	u32 input, u32 output, u32 config)
1da177e4	248	{
780d8e15 HV	249	struct saa7185 *encoder = to_saa7185(sd);
780d8e15 HV	250
5325b427 HV	251	/* RJ: input = 0: input is from SA7111
5325b427 HV	252	input = 1: input is from ZR36060 */
780d8e15	253
5325b427	254	switch (input) {
780d8e15 HV	255	case 0:
	256	/* turn off colorbar */
	257	saa7185_write(sd, 0x3a, 0x0f);
	258	/* Switch RTCE to 1 */
	259	saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) \| 0x08);
	260	saa7185_write(sd, 0x6e, 0x01);
1da177e4 LT	261	break;
1da177e4 LT	262
780d8e15 HV	263	case 1:
	264	/* turn off colorbar */
	265	saa7185_write(sd, 0x3a, 0x0f);
	266	/* Switch RTCE to 0 */
	267	saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) \| 0x00);
	268	/* SW: a slight sync problem... */
	269	saa7185_write(sd, 0x6e, 0x00);
1da177e4 LT	270	break;
1da177e4 LT	271
780d8e15 HV	272	case 2:
	273	/* turn on colorbar */
	274	saa7185_write(sd, 0x3a, 0x8f);
	275	/* Switch RTCE to 0 */
	276	saa7185_write(sd, 0x61, (encoder->reg[0x61] & 0xf7) \| 0x08);
	277	/* SW: a slight sync problem... */
	278	saa7185_write(sd, 0x6e, 0x01);
1da177e4 LT	279	break;
1da177e4 LT	280
1da177e4 LT	281	default:
	282	return -EINVAL;
	283	}
1da177e4 LT	284	return 0;
	285	}
	286
	287	/* ----------------------------------------------------------------------- */
	288
780d8e15	289	static const struct v4l2_subdev_core_ops saa7185_core_ops = {
780d8e15 HV	290	.init = saa7185_init,
780d8e15 HV	291	};
1da177e4	292
780d8e15 HV	293	static const struct v4l2_subdev_video_ops saa7185_video_ops = {
	294	.s_std_output = saa7185_s_std_output,
	295	.s_routing = saa7185_s_routing,
	296	};
	297
	298	static const struct v4l2_subdev_ops saa7185_ops = {
	299	.core = &saa7185_core_ops,
	300	.video = &saa7185_video_ops,
	301	};
	302
	303
	304	/* ----------------------------------------------------------------------- */
d56410e0	305
0afb351e HV	306	static int saa7185_probe(struct i2c_client *client,
0afb351e HV	307	const struct i2c_device_id *id)
1da177e4 LT	308	{
1da177e4 LT	309	int i;
1da177e4	310	struct saa7185 *encoder;
780d8e15	311	struct v4l2_subdev *sd;
1da177e4	312
1da177e4	313	/* Check if the adapter supports the needed features */
0afb351e HV	314	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
0afb351e HV	315	return -ENODEV;
1da177e4	316
0afb351e HV	317	v4l_info(client, "chip found @ 0x%x (%s)\n",
0afb351e HV	318	client->addr << 1, client->adapter->name);
1da177e4	319
c02b211d	320	encoder = devm_kzalloc(&client->dev, sizeof(*encoder), GFP_KERNEL);
0afb351e	321	if (encoder == NULL)
1da177e4	322	return -ENOMEM;
107063c6	323	encoder->norm = V4L2_STD_NTSC;
780d8e15 HV	324	sd = &encoder->sd;
780d8e15 HV	325	v4l2_i2c_subdev_init(sd, client, &saa7185_ops);
1da177e4	326
780d8e15	327	i = saa7185_write_block(sd, init_common, sizeof(init_common));
0afb351e	328	if (i >= 0)
780d8e15	329	i = saa7185_write_block(sd, init_ntsc, sizeof(init_ntsc));
0afb351e	330	if (i < 0)
780d8e15	331	v4l2_dbg(1, debug, sd, "init error %d\n", i);
0afb351e	332	else
780d8e15 HV	333	v4l2_dbg(1, debug, sd, "revision 0x%x\n",
780d8e15 HV	334	saa7185_read(sd) >> 5);
1da177e4 LT	335	return 0;
	336	}
	337
0afb351e	338	static int saa7185_remove(struct i2c_client *client)
1da177e4	339	{
780d8e15 HV	340	struct v4l2_subdev *sd = i2c_get_clientdata(client);
780d8e15 HV	341	struct saa7185 *encoder = to_saa7185(sd);
1da177e4	342
780d8e15 HV	343	v4l2_device_unregister_subdev(sd);
	344	/* SW: output off is active */
	345	saa7185_write(sd, 0x61, (encoder->reg[0x61]) \| 0x40);
1da177e4 LT	346	return 0;
	347	}
	348
	349	/* ----------------------------------------------------------------------- */
	350
0afb351e HV	351	static const struct i2c_device_id saa7185_id[] = {
	352	{ "saa7185", 0 },
	353	{ }
	354	};
	355	MODULE_DEVICE_TABLE(i2c, saa7185_id);
1da177e4	356
dfc5a016 HV	357	static struct i2c_driver saa7185_driver = {
	358	.driver = {
	359	.owner = THIS_MODULE,
	360	.name = "saa7185",
	361	},
	362	.probe = saa7185_probe,
	363	.remove = saa7185_remove,
	364	.id_table = saa7185_id,
1da177e4	365	};
dfc5a016	366
c6e8d86f	367	module_i2c_driver(saa7185_driver);