[deliverable/linux.git] / drivers / media / video / saa711x.c

/*
 * saa7111 - Philips SAA7113A video decoder 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)
 *
 * Changes by Michael Hunold <michael@mihu.de>
 *    - implemented DECODER_SET_GPIO, DECODER_INIT, DECODER_SET_VBI_BYPASS
 *
 * 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/delay.h>
#include <linux/errno.h>
#include <linux/fs.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/slab.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/signal.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/page.h>
#include <linux/sched.h>
#include <asm/segment.h>
#include <linux/types.h>
#include <asm/uaccess.h>
#include <linux/videodev.h>

MODULE_DESCRIPTION("Philips SAA7113 video decoder driver");
MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
MODULE_LICENSE("GPL");

#include <linux/i2c.h>
#include <linux/i2c-dev.h>

#define I2C_NAME(s) (s)->name

#include <linux/video_decoder.h>

static int debug = 0;
MODULE_PARM(debug, "i");
MODULE_PARM_DESC(debug, " Set the default Debug level.  Default: 0 (Off) - (0-1)");


#define dprintk(num, format, args...) \
	do { \
		if (debug >= num) \
			printk(format , ##args); \
	} while (0)

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

struct saa7113 {
	unsigned char reg[32];

	int norm;
	int input;
	int enable;
	int bright;
	int contrast;
	int hue;
	int sat;
};

#define   I2C_SAA7113        0x4A

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

static inline int
saa7113_write (struct i2c_client *client,
	       u8                 reg,
	       u8                 value)
{
	struct saa7113 *decoder = i2c_get_clientdata(client);

	decoder->reg[reg] = value;
	return i2c_smbus_write_byte_data(client, reg, value);
}

static int
saa7113_write_block (struct i2c_client *client,
		     const u8          *data,
		     unsigned int       len)
{
	int ret = -1;
	u8 reg;

	/* the saa7113 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 */
		struct saa7113 *decoder = i2c_get_clientdata(client);
		struct i2c_msg msg;
		u8 block_data[32];

		msg.addr = client->addr;
		msg.flags = 0;
		while (len >= 2) {
			msg.buf = (char *) block_data;
			msg.len = 0;
			block_data[msg.len++] = reg = data[0];
			do {
				block_data[msg.len++] =
				    decoder->reg[reg++] = data[1];
				len -= 2;
				data += 2;
			} while (len >= 2 && data[0] == reg &&
				 msg.len < 32);
			if ((ret = i2c_transfer(client->adapter,
						&msg, 1)) < 0)
				break;
		}
	} else {
		/* do some slow I2C emulation kind of thing */
		while (len >= 2) {
			reg = *data++;
			if ((ret = saa7113_write(client, reg,
						 *data++)) < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

static int
saa7113_init_decoder (struct i2c_client *client,
	      struct video_decoder_init *init)
{
	return saa7113_write_block(client, init->data, init->len);
}

static inline int
saa7113_read (struct i2c_client *client,
	      u8                 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

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

static const unsigned char saa7113_i2c_init[] = {
	0x00, 0x00,	/* PH7113_CHIP_VERSION 00 - ID byte */
	0x01, 0x08,	/* PH7113_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
	0x02, 0xc0,	/* PH7113_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
	0x03, 0x23,	/* PH7113_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
	0x04, 0x00,	/* PH7113_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
	0x05, 0x00,	/* PH7113_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
	0x06, 0xeb,	/* PH7113_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
	0x07, 0xe0,	/* PH7113_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
	0x08, 0x88,	/* PH7113_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
	0x09, 0x00,	/* PH7113_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
	0x0a, 0x80,	/* PH7113_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
	0x0b, 0x47,	/* PH7113_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
	0x0c, 0x40,	/* PH7113_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
	0x0d, 0x00,	/* PH7113_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
	0x0e, 0x01,	/* PH7113_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
	0x0f, 0xaa,	/* PH7113_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
	0x10, 0x00,	/* PH7113_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
	0x11, 0x1C,	/* PH7113_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
	0x12, 0x01,	/* PH7113_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
	0x13, 0x00,	/* PH7113_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
	0x14, 0x00,	/* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
	0x15, 0x00,	/* PH7113_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
	0x16, 0x00,	/* PH7113_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
	0x17, 0x00,	/* PH7113_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
};

static int
saa7113_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa7113 *decoder = i2c_get_clientdata(client);

	switch (cmd) {

	case 0:
	case DECODER_INIT:
	{
		struct video_decoder_init *init = arg;
		if (NULL != init)
			return saa7113_init_decoder(client, init);
		else {
			struct video_decoder_init vdi;
			vdi.data = saa7113_i2c_init;
			vdi.len = sizeof(saa7113_i2c_init);
			return saa7113_init_decoder(client, &vdi);
		}
	}

	case DECODER_DUMP:
	{
		int i;

		for (i = 0; i < 32; i += 16) {
			int j;

			printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
			for (j = 0; j < 16; ++j) {
				printk(" %02x",
				       saa7113_read(client, i + j));
			}
			printk("\n");
		}
	}
		break;

	case DECODER_GET_CAPABILITIES:
	{
		struct video_decoder_capability *cap = arg;

		cap->flags = VIDEO_DECODER_PAL |
			     VIDEO_DECODER_NTSC |
			     VIDEO_DECODER_SECAM |
			     VIDEO_DECODER_AUTO |
			     VIDEO_DECODER_CCIR;
		cap->inputs = 8;
		cap->outputs = 1;
	}
		break;

	case DECODER_GET_STATUS:
	{
		int *iarg = arg;
		int status;
		int res;

		status = saa7113_read(client, 0x1f);
		dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
			status);
		res = 0;
		if ((status & (1 << 6)) == 0) {
			res |= DECODER_STATUS_GOOD;
		}
		switch (decoder->norm) {
		case VIDEO_MODE_NTSC:
			res |= DECODER_STATUS_NTSC;
			break;
		case VIDEO_MODE_PAL:
			res |= DECODER_STATUS_PAL;
			break;
		case VIDEO_MODE_SECAM:
			res |= DECODER_STATUS_SECAM;
			break;
		default:
		case VIDEO_MODE_AUTO:
			if ((status & (1 << 5)) != 0) {
				res |= DECODER_STATUS_NTSC;
			} else {
				res |= DECODER_STATUS_PAL;
			}
			break;
		}
		if ((status & (1 << 0)) != 0) {
			res |= DECODER_STATUS_COLOR;
		}
		*iarg = res;
	}
		break;

	case DECODER_SET_GPIO:
	{
		int *iarg = arg;
		if (0 != *iarg) {
			saa7113_write(client, 0x11,
				(decoder->reg[0x11] | 0x80));
		} else {
			saa7113_write(client, 0x11,
				(decoder->reg[0x11] & 0x7f));
		}
		break;
	}

	case DECODER_SET_VBI_BYPASS:
	{
		int *iarg = arg;
		if (0 != *iarg) {
			saa7113_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0) | 0x0a);
		} else {
			saa7113_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0));
		}
		break;
	}

	case DECODER_SET_NORM:
	{
		int *iarg = arg;

		switch (*iarg) {

		case VIDEO_MODE_NTSC:
			saa7113_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x40);
			saa7113_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_PAL:
			saa7113_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x00);
			saa7113_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_SECAM:
			saa7113_write(client, 0x08,
				      (decoder->reg[0x0e] & 0x3f) | 0x00);
			saa7113_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f) | 0x50);
			break;

		case VIDEO_MODE_AUTO:
			saa7113_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x80);
			saa7113_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		default:
			return -EINVAL;

		}
		decoder->norm = *iarg;
	}
		break;

	case DECODER_SET_INPUT:
	{
		int *iarg = arg;
		if (*iarg < 0 || *iarg > 9) {
			return -EINVAL;
		}
		if (decoder->input != *iarg) {
			decoder->input = *iarg;
			/* select mode */
			saa7113_write(client, 0x02,
				      (decoder->reg[0x02] & 0xf0) | decoder->input);
			/* bypass chrominance trap for modes 4..7 */
			saa7113_write(client, 0x09,
				      (decoder->reg[0x09] & 0x7f) | ((decoder->input > 3) ? 0x80 : 0));
		}
	}
		break;

	case DECODER_SET_OUTPUT:
	{
		int *iarg = arg;

		/* not much choice of outputs */
		if (*iarg != 0) {
			return -EINVAL;
		}
	}
		break;

	case DECODER_ENABLE_OUTPUT:
	{
		int *iarg = arg;
		int enable = (*iarg != 0);

		if (decoder->enable != enable) {
			decoder->enable = enable;

			/* RJ: If output should be disabled (for
			 * playing videos), we also need a open PLL.
			 * The input is set to 0 (where no input
			 * source is connected), although this
			 * is not necessary.
			 *
			 * If output should be enabled, we have to
			 * reverse the above.
			 */

			if (decoder->enable) {
				saa7113_write(client, 0x02,
					      (decoder->
					       reg[0x02] & 0xf8) |
					      decoder->input);
				saa7113_write(client, 0x08,
					      (decoder->reg[0x08] & 0xfb));
				saa7113_write(client, 0x11,
					      (decoder->
					       reg[0x11] & 0xf3) | 0x0c);
			} else {
				saa7113_write(client, 0x02,
					      (decoder->reg[0x02] & 0xf8));
				saa7113_write(client, 0x08,
					      (decoder->
					       reg[0x08] & 0xfb) | 0x04);
				saa7113_write(client, 0x11,
					      (decoder->reg[0x11] & 0xf3));
			}
		}
	}
		break;

	case DECODER_SET_PICTURE:
	{
		struct video_picture *pic = arg;

		if (decoder->bright != pic->brightness) {
			/* We want 0 to 255 we get 0-65535 */
			decoder->bright = pic->brightness;
			saa7113_write(client, 0x0a, decoder->bright >> 8);
		}
		if (decoder->contrast != pic->contrast) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->contrast = pic->contrast;
			saa7113_write(client, 0x0b,
				      decoder->contrast >> 9);
		}
		if (decoder->sat != pic->colour) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->sat = pic->colour;
			saa7113_write(client, 0x0c, decoder->sat >> 9);
		}
		if (decoder->hue != pic->hue) {
			/* We want -128 to 127 we get 0-65535 */
			decoder->hue = pic->hue;
			saa7113_write(client, 0x0d,
				      (decoder->hue - 32768) >> 8);
		}
	}
		break;

	default:
		return -EINVAL;
	}

	return 0;
}

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

/*
 * Generic i2c probe
 * concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
 */

/* standard i2c insmod options */
static unsigned short normal_i2c[] = {
	I2C_SAA7113>>1,         /* saa7113 */
	I2C_CLIENT_END
};

I2C_CLIENT_INSMOD;


static struct i2c_driver i2c_driver_saa7113;

static int
saa7113_detect_client (struct i2c_adapter *adapter,
		       int                 address,
		       int                 kind)
{
	int i;
	struct i2c_client *client;
	struct saa7113 *decoder;
	struct video_decoder_init vdi;

	dprintk(1,
		KERN_INFO
		"saa7113.c: detecting saa7113 client on address 0x%x\n",
		address << 1);

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
		return 0;

	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	if (client == 0)
		return -ENOMEM;
	memset(client, 0, sizeof(struct i2c_client));
	client->addr = address;
	client->adapter = adapter;
	client->driver = &i2c_driver_saa7113;
	client->flags = I2C_CLIENT_ALLOW_USE;
	strlcpy(I2C_NAME(client), "saa7113", sizeof(I2C_NAME(client)));
	decoder = kmalloc(sizeof(struct saa7113), GFP_KERNEL);
	if (decoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	memset(decoder, 0, sizeof(struct saa7113));
	decoder->norm = VIDEO_MODE_NTSC;
	decoder->input = 0;
	decoder->enable = 1;
	decoder->bright = 32768;
	decoder->contrast = 32768;
	decoder->hue = 32768;
	decoder->sat = 32768;
	i2c_set_clientdata(client, decoder);

	i = i2c_attach_client(client);
	if (i) {
		kfree(client);
		kfree(decoder);
		return i;
	}

	vdi.data = saa7113_i2c_init;
	vdi.len = sizeof(saa7113_i2c_init);
	i = saa7113_init_decoder(client, &vdi);
	if (i < 0) {
		dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
			I2C_NAME(client), i);
	} else {
		dprintk(1,
			KERN_INFO
			"%s_attach: chip version %x at address 0x%x\n",
			I2C_NAME(client), saa7113_read(client, 0x00) >> 4,
			client->addr << 1);
	}

	return 0;
}

static int
saa7113_attach_adapter (struct i2c_adapter *adapter)
{
	dprintk(1,
		KERN_INFO
		"saa7113.c: starting probe for adapter %s (0x%x)\n",
		I2C_NAME(adapter), adapter->id);
	return i2c_probe(adapter, &addr_data, &saa7113_detect_client);
}

static int
saa7113_detach_client (struct i2c_client *client)
{
	struct saa7113 *decoder = i2c_get_clientdata(client);
	int err;

	err = i2c_detach_client(client);
	if (err) {
		return err;
	}

	kfree(decoder);
	kfree(client);

	return 0;
}

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

static struct i2c_driver i2c_driver_saa7113 = {
	.owner = THIS_MODULE,
	.name = "saa7113",

	.id = I2C_DRIVERID_SAA7113,
	.flags = I2C_DF_NOTIFY,

	.attach_adapter = saa7113_attach_adapter,
	.detach_client = saa7113_detach_client,
	.command = saa7113_command,
};

static int __init
saa7113_init (void)
{
	return i2c_add_driver(&i2c_driver_saa7113);
}

static void __exit
saa7113_exit (void)
{
	i2c_del_driver(&i2c_driver_saa7113);
}

module_init(saa7113_init);
module_exit(saa7113_exit);
Commit	Line	Data
340622c5 DG	1	/*
	2	* saa7111 - Philips SAA7113A video decoder 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	* Changes by Michael Hunold <michael@mihu.de>
	13	* - implemented DECODER_SET_GPIO, DECODER_INIT, DECODER_SET_VBI_BYPASS
	14	*
	15	* This program is free software; you can redistribute it and/or modify
	16	* it under the terms of the GNU General Public License as published by
	17	* the Free Software Foundation; either version 2 of the License, or
	18	* (at your option) any later version.
	19	*
	20	* This program is distributed in the hope that it will be useful,
	21	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	22	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	23	* GNU General Public License for more details.
	24	*
	25	* You should have received a copy of the GNU General Public License
	26	* along with this program; if not, write to the Free Software
	27	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	28	*/
	29
	30	#include <linux/module.h>
	31	#include <linux/init.h>
	32	#include <linux/delay.h>
	33	#include <linux/errno.h>
	34	#include <linux/fs.h>
	35	#include <linux/kernel.h>
	36	#include <linux/major.h>
	37	#include <linux/slab.h>
	38	#include <linux/mm.h>
	39	#include <linux/pci.h>
	40	#include <linux/signal.h>
	41	#include <asm/io.h>
	42	#include <asm/pgtable.h>
	43	#include <asm/page.h>
	44	#include <linux/sched.h>
	45	#include <asm/segment.h>
	46	#include <linux/types.h>
	47	#include <asm/uaccess.h>
	48	#include <linux/videodev.h>
	49
	50	MODULE_DESCRIPTION("Philips SAA7113 video decoder driver");
	51	MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
	52	MODULE_LICENSE("GPL");
	53
	54	#include <linux/i2c.h>
	55	#include <linux/i2c-dev.h>
	56
	57	#define I2C_NAME(s) (s)->name
	58
	59	#include <linux/video_decoder.h>
	60
	61	static int debug = 0;
	62	MODULE_PARM(debug, "i");
	63	MODULE_PARM_DESC(debug, " Set the default Debug level. Default: 0 (Off) - (0-1)");
	64
65
66	#define dprintk(num, format, args...) \
67	do { \
68	if (debug >= num) \
69	printk(format , ##args); \
70	} while (0)
71
72	/* ----------------------------------------------------------------------- */
73
74	struct saa7113 {
75	unsigned char reg[32];
76
77	int norm;
78	int input;
79	int enable;
80	int bright;
81	int contrast;
82	int hue;
83	int sat;
84	};
85
86	#define I2C_SAA7113 0x4A
87
88	/* ----------------------------------------------------------------------- */
89
90	static inline int
91	saa7113_write (struct i2c_client *client,
92	u8 reg,
93	u8 value)
94	{
95	struct saa7113 *decoder = i2c_get_clientdata(client);
96
97	decoder->reg[reg] = value;
98	return i2c_smbus_write_byte_data(client, reg, value);
99	}
100
101	static int
102	saa7113_write_block (struct i2c_client *client,
103	const u8 *data,
104	unsigned int len)
105	{
106	int ret = -1;
107	u8 reg;
108
109	/* the saa7113 has an autoincrement function, use it if
110	* the adapter understands raw I2C */
111	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
112	/* do raw I2C, not smbus compatible */
113	struct saa7113 *decoder = i2c_get_clientdata(client);
114	struct i2c_msg msg;
115	u8 block_data[32];
116
117	msg.addr = client->addr;
118	msg.flags = 0;
119	while (len >= 2) {
120	msg.buf = (char *) block_data;
121	msg.len = 0;
122	block_data[msg.len++] = reg = data[0];
123	do {
124	block_data[msg.len++] =
125	decoder->reg[reg++] = data[1];
126	len -= 2;
127	data += 2;
128	} while (len >= 2 && data[0] == reg &&
129	msg.len < 32);
130	if ((ret = i2c_transfer(client->adapter,
131	&msg, 1)) < 0)
132	break;
133	}
134	} else {
135	/* do some slow I2C emulation kind of thing */
136	while (len >= 2) {
137	reg = *data++;
138	if ((ret = saa7113_write(client, reg,
139	*data++)) < 0)
140	break;
141	len -= 2;
142	}
143	}
144
145	return ret;
146	}
147
148	static int
149	saa7113_init_decoder (struct i2c_client *client,
150	struct video_decoder_init *init)
151	{
152	return saa7113_write_block(client, init->data, init->len);
153	}
154
155	static inline int
156	saa7113_read (struct i2c_client *client,
157	u8 reg)
158	{
159	return i2c_smbus_read_byte_data(client, reg);
160	}
161
162	/* ----------------------------------------------------------------------- */
163
164	static const unsigned char saa7113_i2c_init[] = {
165	0x00, 0x00, /* PH7113_CHIP_VERSION 00 - ID byte */
166	0x01, 0x08, /* PH7113_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
167	0x02, 0xc0, /* PH7113_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
168	0x03, 0x23, /* PH7113_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
169	0x04, 0x00, /* PH7113_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
170	0x05, 0x00, /* PH7113_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
171	0x06, 0xeb, /* PH7113_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
172	0x07, 0xe0, /* PH7113_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
173	0x08, 0x88, /* PH7113_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
174	0x09, 0x00, /* PH7113_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
175	0x0a, 0x80, /* PH7113_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
176	0x0b, 0x47, /* PH7113_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
177	0x0c, 0x40, /* PH7113_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
178	0x0d, 0x00, /* PH7113_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
179	0x0e, 0x01, /* PH7113_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
180	0x0f, 0xaa, /* PH7113_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
181	0x10, 0x00, /* PH7113_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
182	0x11, 0x1C, /* PH7113_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
183	0x12, 0x01, /* PH7113_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
184	0x13, 0x00, /* PH7113_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
185	0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
186	0x15, 0x00, /* PH7113_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
187	0x16, 0x00, /* PH7113_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
188	0x17, 0x00, /* PH7113_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
189	};
190
191	static int
192	saa7113_command (struct i2c_client *client,
193	unsigned int cmd,
194	void *arg)
195	{
196	struct saa7113 *decoder = i2c_get_clientdata(client);
197
198	switch (cmd) {
199
200	case 0:
201	case DECODER_INIT:
202	{
203	struct video_decoder_init *init = arg;
204	if (NULL != init)
205	return saa7113_init_decoder(client, init);
206	else {
207	struct video_decoder_init vdi;
208	vdi.data = saa7113_i2c_init;
209	vdi.len = sizeof(saa7113_i2c_init);
210	return saa7113_init_decoder(client, &vdi);
211	}
212	}
213
214	case DECODER_DUMP:
215	{
216	int i;
217
218	for (i = 0; i < 32; i += 16) {
219	int j;
220
221	printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
222	for (j = 0; j < 16; ++j) {
223	printk(" %02x",
224	saa7113_read(client, i + j));
225	}
226	printk("\n");
227	}
228	}
229	break;
230
231	case DECODER_GET_CAPABILITIES:
232	{
233	struct video_decoder_capability *cap = arg;
234
235	cap->flags = VIDEO_DECODER_PAL \|
236	VIDEO_DECODER_NTSC \|
237	VIDEO_DECODER_SECAM \|
238	VIDEO_DECODER_AUTO \|
239	VIDEO_DECODER_CCIR;
240	cap->inputs = 8;
241	cap->outputs = 1;
242	}
243	break;
244
245	case DECODER_GET_STATUS:
246	{
247	int *iarg = arg;
248	int status;
249	int res;
250
251	status = saa7113_read(client, 0x1f);
252	dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
253	status);
254	res = 0;
255	if ((status & (1 << 6)) == 0) {
256	res \|= DECODER_STATUS_GOOD;
257	}
258	switch (decoder->norm) {
259	case VIDEO_MODE_NTSC:
260	res \|= DECODER_STATUS_NTSC;
261	break;
262	case VIDEO_MODE_PAL:
263	res \|= DECODER_STATUS_PAL;
264	break;
265	case VIDEO_MODE_SECAM:
266	res \|= DECODER_STATUS_SECAM;
267	break;
268	default:
269	case VIDEO_MODE_AUTO:
270	if ((status & (1 << 5)) != 0) {
271	res \|= DECODER_STATUS_NTSC;
272	} else {
273	res \|= DECODER_STATUS_PAL;
274	}
275	break;
276	}
277	if ((status & (1 << 0)) != 0) {
278	res \|= DECODER_STATUS_COLOR;
279	}
280	*iarg = res;
281	}
282	break;
283
284	case DECODER_SET_GPIO:
285	{
286	int *iarg = arg;
287	if (0 != *iarg) {
288	saa7113_write(client, 0x11,
289	(decoder->reg[0x11] \| 0x80));
290	} else {
291	saa7113_write(client, 0x11,
292	(decoder->reg[0x11] & 0x7f));
293	}
294	break;
295	}
296
297	case DECODER_SET_VBI_BYPASS:
298	{
299	int *iarg = arg;
300	if (0 != *iarg) {
301	saa7113_write(client, 0x13,
302	(decoder->reg[0x13] & 0xf0) \| 0x0a);
303	} else {
304	saa7113_write(client, 0x13,
305	(decoder->reg[0x13] & 0xf0));
306	}
307	break;
308	}
309
310	case DECODER_SET_NORM:
311	{
312	int *iarg = arg;
313
314	switch (*iarg) {
315
316	case VIDEO_MODE_NTSC:
317	saa7113_write(client, 0x08,
318	(decoder->reg[0x08] & 0x3f) \| 0x40);
319	saa7113_write(client, 0x0e,
320	(decoder->reg[0x0e] & 0x8f));
321	break;
322
323	case VIDEO_MODE_PAL:
324	saa7113_write(client, 0x08,
325	(decoder->reg[0x08] & 0x3f) \| 0x00);
326	saa7113_write(client, 0x0e,
327	(decoder->reg[0x0e] & 0x8f));
328	break;
329
330	case VIDEO_MODE_SECAM:
331	saa7113_write(client, 0x08,
332	(decoder->reg[0x0e] & 0x3f) \| 0x00);
333	saa7113_write(client, 0x0e,
334	(decoder->reg[0x0e] & 0x8f) \| 0x50);
335	break;
336
337	case VIDEO_MODE_AUTO:
338	saa7113_write(client, 0x08,
339	(decoder->reg[0x08] & 0x3f) \| 0x80);
340	saa7113_write(client, 0x0e,
341	(decoder->reg[0x0e] & 0x8f));
342	break;
343
344	default:
345	return -EINVAL;
346
347	}
348	decoder->norm = *iarg;
349	}
350	break;
351
352	case DECODER_SET_INPUT:
353	{
354	int *iarg = arg;
355	if (iarg < 0 \|\| iarg > 9) {
356	return -EINVAL;
357	}
358	if (decoder->input != *iarg) {
359	decoder->input = *iarg;
360	/* select mode */
361	saa7113_write(client, 0x02,
362	(decoder->reg[0x02] & 0xf0) \| decoder->input);
363	/* bypass chrominance trap for modes 4..7 */
364	saa7113_write(client, 0x09,
365	(decoder->reg[0x09] & 0x7f) \| ((decoder->input > 3) ? 0x80 : 0));
366	}
367	}
368	break;
369
370	case DECODER_SET_OUTPUT:
371	{
372	int *iarg = arg;
373
374	/* not much choice of outputs */
375	if (*iarg != 0) {
376	return -EINVAL;
377	}
378	}
379	break;
380
381	case DECODER_ENABLE_OUTPUT:
382	{
383	int *iarg = arg;
384	int enable = (*iarg != 0);
385
386	if (decoder->enable != enable) {
387	decoder->enable = enable;
388
389	/* RJ: If output should be disabled (for
390	* playing videos), we also need a open PLL.
391	* The input is set to 0 (where no input
392	* source is connected), although this
393	* is not necessary.
394	*
395	* If output should be enabled, we have to
396	* reverse the above.
397	*/
398
399	if (decoder->enable) {
400	saa7113_write(client, 0x02,
401	(decoder->
402	reg[0x02] & 0xf8) \|
403	decoder->input);
404	saa7113_write(client, 0x08,
405	(decoder->reg[0x08] & 0xfb));
406	saa7113_write(client, 0x11,
407	(decoder->
408	reg[0x11] & 0xf3) \| 0x0c);
409	} else {
410	saa7113_write(client, 0x02,
411	(decoder->reg[0x02] & 0xf8));
412	saa7113_write(client, 0x08,
413	(decoder->
414	reg[0x08] & 0xfb) \| 0x04);
415	saa7113_write(client, 0x11,
416	(decoder->reg[0x11] & 0xf3));
417	}
418	}
419	}
420	break;
421
422	case DECODER_SET_PICTURE:
423	{
424	struct video_picture *pic = arg;
425
426	if (decoder->bright != pic->brightness) {
427	/* We want 0 to 255 we get 0-65535 */
428	decoder->bright = pic->brightness;
429	saa7113_write(client, 0x0a, decoder->bright >> 8);
430	}
431	if (decoder->contrast != pic->contrast) {
432	/* We want 0 to 127 we get 0-65535 */
433	decoder->contrast = pic->contrast;
434	saa7113_write(client, 0x0b,
435	decoder->contrast >> 9);
436	}
437	if (decoder->sat != pic->colour) {
438	/* We want 0 to 127 we get 0-65535 */
439	decoder->sat = pic->colour;
440	saa7113_write(client, 0x0c, decoder->sat >> 9);
441	}
442	if (decoder->hue != pic->hue) {
443	/* We want -128 to 127 we get 0-65535 */
444	decoder->hue = pic->hue;
445	saa7113_write(client, 0x0d,
446	(decoder->hue - 32768) >> 8);
447	}
448	}
449	break;
450
451	default:
452	return -EINVAL;
453	}
454
455	return 0;
456	}
457
458	/* ----------------------------------------------------------------------- */
459
460	/*
461	* Generic i2c probe
462	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
463	*/
464
465	/* standard i2c insmod options */
466	static unsigned short normal_i2c[] = {
4ac97914 MCC	467	I2C_SAA7113>>1, /* saa7113 */
4ac97914 MCC	468	I2C_CLIENT_END
340622c5 DG	469	};
	470
	471	I2C_CLIENT_INSMOD;
	472
	473
	474	static struct i2c_driver i2c_driver_saa7113;
	475
	476	static int
	477	saa7113_detect_client (struct i2c_adapter *adapter,
	478	int address,
	479	int kind)
	480	{
	481	int i;
	482	struct i2c_client *client;
	483	struct saa7113 *decoder;
	484	struct video_decoder_init vdi;
	485
	486	dprintk(1,
	487	KERN_INFO
	488	"saa7113.c: detecting saa7113 client on address 0x%x\n",
	489	address << 1);
	490
	491	/* Check if the adapter supports the needed features */
	492	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	493	return 0;
	494
	495	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	496	if (client == 0)
	497	return -ENOMEM;
	498	memset(client, 0, sizeof(struct i2c_client));
	499	client->addr = address;
	500	client->adapter = adapter;
	501	client->driver = &i2c_driver_saa7113;
	502	client->flags = I2C_CLIENT_ALLOW_USE;
	503	strlcpy(I2C_NAME(client), "saa7113", sizeof(I2C_NAME(client)));
	504	decoder = kmalloc(sizeof(struct saa7113), GFP_KERNEL);
	505	if (decoder == NULL) {
	506	kfree(client);
	507	return -ENOMEM;
	508	}
	509	memset(decoder, 0, sizeof(struct saa7113));
	510	decoder->norm = VIDEO_MODE_NTSC;
	511	decoder->input = 0;
	512	decoder->enable = 1;
	513	decoder->bright = 32768;
	514	decoder->contrast = 32768;
	515	decoder->hue = 32768;
	516	decoder->sat = 32768;
	517	i2c_set_clientdata(client, decoder);
	518
	519	i = i2c_attach_client(client);
	520	if (i) {
	521	kfree(client);
	522	kfree(decoder);
	523	return i;
	524	}
	525
	526	vdi.data = saa7113_i2c_init;
	527	vdi.len = sizeof(saa7113_i2c_init);
	528	i = saa7113_init_decoder(client, &vdi);
	529	if (i < 0) {
	530	dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
	531	I2C_NAME(client), i);
	532	} else {
533	dprintk(1,
534	KERN_INFO
535	"%s_attach: chip version %x at address 0x%x\n",
536	I2C_NAME(client), saa7113_read(client, 0x00) >> 4,
537	client->addr << 1);
538	}
539
540	return 0;
541	}
542
543	static int
544	saa7113_attach_adapter (struct i2c_adapter *adapter)
545	{
546	dprintk(1,
547	KERN_INFO
548	"saa7113.c: starting probe for adapter %s (0x%x)\n",
549	I2C_NAME(adapter), adapter->id);
550	return i2c_probe(adapter, &addr_data, &saa7113_detect_client);
551	}
552
553	static int
554	saa7113_detach_client (struct i2c_client *client)
555	{
556	struct saa7113 *decoder = i2c_get_clientdata(client);
557	int err;
558
559	err = i2c_detach_client(client);
560	if (err) {
561	return err;
562	}
563
564	kfree(decoder);
565	kfree(client);
566
567	return 0;
568	}
569
570	/* ----------------------------------------------------------------------- */
571
572	static struct i2c_driver i2c_driver_saa7113 = {
573	.owner = THIS_MODULE,
574	.name = "saa7113",
575
576	.id = I2C_DRIVERID_SAA7113,
577	.flags = I2C_DF_NOTIFY,
578
579	.attach_adapter = saa7113_attach_adapter,
580	.detach_client = saa7113_detach_client,
581	.command = saa7113_command,
582	};
583
584	static int __init
585	saa7113_init (void)
586	{
587	return i2c_add_driver(&i2c_driver_saa7113);
588	}
589
590	static void __exit
591	saa7113_exit (void)
592	{
593	i2c_del_driver(&i2c_driver_saa7113);
594	}
595
596	module_init(saa7113_init);
597	module_exit(saa7113_exit);