[deliverable/linux.git] / drivers / media / video / saa7111.c

/* 
 * saa7111 - Philips SAA7111A 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 <linux/types.h>

#include <linux/videodev.h>
#include <asm/uaccess.h>

MODULE_DESCRIPTION("Philips SAA7111 video decoder driver");
MODULE_AUTHOR("Dave Perks");
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_param(debug, int, 0644);
MODULE_PARM_DESC(debug, "Debug level (0-1)");

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

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

struct saa7111 {
	unsigned char reg[32];

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

#define   I2C_SAA7111        0x48

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

static inline int
saa7111_write (struct i2c_client *client,
	       u8                 reg,
	       u8                 value)
{
	struct saa7111 *decoder = i2c_get_clientdata(client);

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

static int
saa7111_write_block (struct i2c_client *client,
		     const u8          *data,
		     unsigned int       len)
{
	int ret = -1;
	u8 reg;

	/* the saa7111 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 saa7111 *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 = saa7111_write(client, reg,
						 *data++)) < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

static int
saa7111_init_decoder (struct i2c_client *client,
	      struct video_decoder_init *init)
{
	return saa7111_write_block(client, init->data, init->len);
}

static inline int
saa7111_read (struct i2c_client *client,
	      u8                 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

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

static const unsigned char saa7111_i2c_init[] = {
	0x00, 0x00,		/* 00 - ID byte */
	0x01, 0x00,		/* 01 - reserved */

	/*front end */
	0x02, 0xd0,		/* 02 - FUSE=3, GUDL=2, MODE=0 */
	0x03, 0x23,		/* 03 - HLNRS=0, VBSL=1, WPOFF=0,
				 * HOLDG=0, GAFIX=0, GAI1=256, GAI2=256 */
	0x04, 0x00,		/* 04 - GAI1=256 */
	0x05, 0x00,		/* 05 - GAI2=256 */

	/* decoder */
	0x06, 0xf3,		/* 06 - HSB at  13(50Hz) /  17(60Hz)
				 * pixels after end of last line */
	/*0x07, 0x13,     * 07 - HSS at 113(50Hz) / 117(60Hz) pixels
				 * after end of last line */
	0x07, 0xe8,		/* 07 - HSS seems to be needed to
				 * work with NTSC, too */
	0x08, 0xc8,		/* 08 - AUFD=1, FSEL=1, EXFIL=0,
				 * VTRC=1, HPLL=0, VNOI=0 */
	0x09, 0x01,		/* 09 - BYPS=0, PREF=0, BPSS=0,
				 * VBLB=0, UPTCV=0, APER=1 */
	0x0a, 0x80,		/* 0a - BRIG=128 */
	0x0b, 0x47,		/* 0b - CONT=1.109 */
	0x0c, 0x40,		/* 0c - SATN=1.0 */
	0x0d, 0x00,		/* 0d - HUE=0 */
	0x0e, 0x01,		/* 0e - CDTO=0, CSTD=0, DCCF=0,
				 * FCTC=0, CHBW=1 */
	0x0f, 0x00,		/* 0f - reserved */
	0x10, 0x48,		/* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */
	0x11, 0x1c,		/* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1,
				 * OEYC=1, OEHV=1, VIPB=0, COLO=0 */
	0x12, 0x00,		/* 12 - output control 2 */
	0x13, 0x00,		/* 13 - output control 3 */
	0x14, 0x00,		/* 14 - reserved */
	0x15, 0x00,		/* 15 - VBI */
	0x16, 0x00,		/* 16 - VBI */
	0x17, 0x00,		/* 17 - VBI */
};

static int
saa7111_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa7111 *decoder = i2c_get_clientdata(client);

	switch (cmd) {

	case 0:
	case DECODER_INIT:
	{
		struct video_decoder_init *init = arg;
		if (NULL != init)
			return saa7111_init_decoder(client, init);
		else {
			struct video_decoder_init vdi;
			vdi.data = saa7111_i2c_init;
			vdi.len = sizeof(saa7111_i2c_init);
			return saa7111_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",
				       saa7111_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 = saa7111_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) {
			saa7111_write(client, 0x11,
				(decoder->reg[0x11] | 0x80));
		} else {
			saa7111_write(client, 0x11,
				(decoder->reg[0x11] & 0x7f));
		}
		break;
	}

	case DECODER_SET_VBI_BYPASS:
	{
		int *iarg = arg;
		if (0 != *iarg) {
			saa7111_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0) | 0x0a);
		} else {
			saa7111_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0));
		}
		break;
	}

	case DECODER_SET_NORM:
	{
		int *iarg = arg;

		switch (*iarg) {

		case VIDEO_MODE_NTSC:
			saa7111_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x40);
			saa7111_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_PAL:
			saa7111_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x00);
			saa7111_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_SECAM:
			saa7111_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x00);
			saa7111_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f) | 0x50);
			break;

		case VIDEO_MODE_AUTO:
			saa7111_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x80);
			saa7111_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 > 7) {
			return -EINVAL;
		}

		if (decoder->input != *iarg) {
			decoder->input = *iarg;
			/* select mode */
			saa7111_write(client, 0x02,
				      (decoder->
				       reg[0x02] & 0xf8) | decoder->input);
			/* bypass chrominance trap for modes 4..7 */
			saa7111_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) {
				saa7111_write(client, 0x02,
					      (decoder->
					       reg[0x02] & 0xf8) |
					      decoder->input);
				saa7111_write(client, 0x08,
					      (decoder->reg[0x08] & 0xfb));
				saa7111_write(client, 0x11,
					      (decoder->
					       reg[0x11] & 0xf3) | 0x0c);
			} else {
				saa7111_write(client, 0x02,
					      (decoder->reg[0x02] & 0xf8));
				saa7111_write(client, 0x08,
					      (decoder->
					       reg[0x08] & 0xfb) | 0x04);
				saa7111_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;
			saa7111_write(client, 0x0a, decoder->bright >> 8);
		}
		if (decoder->contrast != pic->contrast) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->contrast = pic->contrast;
			saa7111_write(client, 0x0b,
				      decoder->contrast >> 9);
		}
		if (decoder->sat != pic->colour) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->sat = pic->colour;
			saa7111_write(client, 0x0c, decoder->sat >> 9);
		}
		if (decoder->hue != pic->hue) {
			/* We want -128 to 127 we get 0-65535 */
			decoder->hue = pic->hue;
			saa7111_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'
 */
static unsigned short normal_i2c[] = { I2C_SAA7111 >> 1, I2C_CLIENT_END };

static unsigned short ignore = I2C_CLIENT_END;
                                                                                
static struct i2c_client_address_data addr_data = {
	.normal_i2c		= normal_i2c,
	.probe			= &ignore,
	.ignore			= &ignore,
};

static struct i2c_driver i2c_driver_saa7111;

static int
saa7111_detect_client (struct i2c_adapter *adapter,
		       int                 address,
		       int                 kind)
{
	int i;
	struct i2c_client *client;
	struct saa7111 *decoder;
	struct video_decoder_init vdi;

	dprintk(1,
		KERN_INFO
		"saa7111.c: detecting saa7111 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_saa7111;
	client->flags = I2C_CLIENT_ALLOW_USE;
	strlcpy(I2C_NAME(client), "saa7111", sizeof(I2C_NAME(client)));

	decoder = kmalloc(sizeof(struct saa7111), GFP_KERNEL);
	if (decoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	memset(decoder, 0, sizeof(struct saa7111));
	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 = saa7111_i2c_init;
	vdi.len = sizeof(saa7111_i2c_init);
	i = saa7111_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), saa7111_read(client, 0x00) >> 4,
			client->addr << 1);
	}

	return 0;
}

static int
saa7111_attach_adapter (struct i2c_adapter *adapter)
{
	dprintk(1,
		KERN_INFO
		"saa7111.c: starting probe for adapter %s (0x%x)\n",
		I2C_NAME(adapter), adapter->id);
	return i2c_probe(adapter, &addr_data, &saa7111_detect_client);
}

static int
saa7111_detach_client (struct i2c_client *client)
{
	struct saa7111 *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_saa7111 = {
	.owner = THIS_MODULE,
	.name = "saa7111",

	.id = I2C_DRIVERID_SAA7111A,

	.attach_adapter = saa7111_attach_adapter,
	.detach_client = saa7111_detach_client,
	.command = saa7111_command,
};

static int __init
saa7111_init (void)
{
	return i2c_add_driver(&i2c_driver_saa7111);
}

static void __exit
saa7111_exit (void)
{
	i2c_del_driver(&i2c_driver_saa7111);
}

module_init(saa7111_init);
module_exit(saa7111_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* saa7111 - Philips SAA7111A 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>
1da177e4 LT	45	#include <linux/types.h>
	46
	47	#include <linux/videodev.h>
	48	#include <asm/uaccess.h>
	49
	50	MODULE_DESCRIPTION("Philips SAA7111 video decoder driver");
	51	MODULE_AUTHOR("Dave Perks");
	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_param(debug, int, 0644);
	63	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	64
	65	#define dprintk(num, format, args...) \
	66	do { \
	67	if (debug >= num) \
	68	printk(format, ##args); \
	69	} while (0)
	70
	71	/* ----------------------------------------------------------------------- */
	72
	73	struct saa7111 {
	74	unsigned char reg[32];
	75
	76	int norm;
	77	int input;
	78	int enable;
	79	int bright;
	80	int contrast;
	81	int hue;
	82	int sat;
	83	};
	84
	85	#define I2C_SAA7111 0x48
	86
	87	/* ----------------------------------------------------------------------- */
	88
	89	static inline int
	90	saa7111_write (struct i2c_client *client,
	91	u8 reg,
	92	u8 value)
	93	{
	94	struct saa7111 *decoder = i2c_get_clientdata(client);
	95
	96	decoder->reg[reg] = value;
	97	return i2c_smbus_write_byte_data(client, reg, value);
	98	}
	99
	100	static int
	101	saa7111_write_block (struct i2c_client *client,
	102	const u8 *data,
	103	unsigned int len)
	104	{
	105	int ret = -1;
	106	u8 reg;
	107
	108	/* the saa7111 has an autoincrement function, use it if
109	* the adapter understands raw I2C */
110	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
111	/* do raw I2C, not smbus compatible */
112	struct saa7111 *decoder = i2c_get_clientdata(client);
113	struct i2c_msg msg;
114	u8 block_data[32];
115
116	msg.addr = client->addr;
117	msg.flags = 0;
118	while (len >= 2) {
119	msg.buf = (char *) block_data;
120	msg.len = 0;
121	block_data[msg.len++] = reg = data[0];
122	do {
123	block_data[msg.len++] =
124	decoder->reg[reg++] = data[1];
125	len -= 2;
126	data += 2;
127	} while (len >= 2 && data[0] == reg &&
128	msg.len < 32);
129	if ((ret = i2c_transfer(client->adapter,
130	&msg, 1)) < 0)
131	break;
132	}
133	} else {
134	/* do some slow I2C emulation kind of thing */
135	while (len >= 2) {
136	reg = *data++;
137	if ((ret = saa7111_write(client, reg,
138	*data++)) < 0)
139	break;
140	len -= 2;
141	}
142	}
143
144	return ret;
145	}
146
147	static int
148	saa7111_init_decoder (struct i2c_client *client,
149	struct video_decoder_init *init)
150	{
151	return saa7111_write_block(client, init->data, init->len);
152	}
153
154	static inline int
155	saa7111_read (struct i2c_client *client,
156	u8 reg)
157	{
158	return i2c_smbus_read_byte_data(client, reg);
159	}
160
161	/* ----------------------------------------------------------------------- */
162
163	static const unsigned char saa7111_i2c_init[] = {
164	0x00, 0x00, /* 00 - ID byte */
165	0x01, 0x00, /* 01 - reserved */
166
167	/front end /
168	0x02, 0xd0, /* 02 - FUSE=3, GUDL=2, MODE=0 */
169	0x03, 0x23, /* 03 - HLNRS=0, VBSL=1, WPOFF=0,
170	* HOLDG=0, GAFIX=0, GAI1=256, GAI2=256 */
171	0x04, 0x00, /* 04 - GAI1=256 */
172	0x05, 0x00, /* 05 - GAI2=256 */
173
174	/* decoder */
175	0x06, 0xf3, /* 06 - HSB at 13(50Hz) / 17(60Hz)
176	* pixels after end of last line */
177	/0x07, 0x13, 07 - HSS at 113(50Hz) / 117(60Hz) pixels
178	* after end of last line */
179	0x07, 0xe8, /* 07 - HSS seems to be needed to
180	* work with NTSC, too */
181	0x08, 0xc8, /* 08 - AUFD=1, FSEL=1, EXFIL=0,
182	* VTRC=1, HPLL=0, VNOI=0 */
183	0x09, 0x01, /* 09 - BYPS=0, PREF=0, BPSS=0,
184	* VBLB=0, UPTCV=0, APER=1 */
185	0x0a, 0x80, /* 0a - BRIG=128 */
186	0x0b, 0x47, /* 0b - CONT=1.109 */
187	0x0c, 0x40, /* 0c - SATN=1.0 */
188	0x0d, 0x00, /* 0d - HUE=0 */
189	0x0e, 0x01, /* 0e - CDTO=0, CSTD=0, DCCF=0,
190	* FCTC=0, CHBW=1 */
191	0x0f, 0x00, /* 0f - reserved */
192	0x10, 0x48, /* 10 - OFTS=1, HDEL=0, VRLN=1, YDEL=0 */
193	0x11, 0x1c, /* 11 - GPSW=0, CM99=0, FECO=0, COMPO=1,
194	* OEYC=1, OEHV=1, VIPB=0, COLO=0 */
195	0x12, 0x00, /* 12 - output control 2 */
196	0x13, 0x00, /* 13 - output control 3 */
197	0x14, 0x00, /* 14 - reserved */
198	0x15, 0x00, /* 15 - VBI */
199	0x16, 0x00, /* 16 - VBI */
200	0x17, 0x00, /* 17 - VBI */
201	};
202
203	static int
204	saa7111_command (struct i2c_client *client,
205	unsigned int cmd,
206	void *arg)
207	{
208	struct saa7111 *decoder = i2c_get_clientdata(client);
209
210	switch (cmd) {
211
212	case 0:
213	case DECODER_INIT:
214	{
215	struct video_decoder_init *init = arg;
216	if (NULL != init)
217	return saa7111_init_decoder(client, init);
218	else {
219	struct video_decoder_init vdi;
220	vdi.data = saa7111_i2c_init;
221	vdi.len = sizeof(saa7111_i2c_init);
222	return saa7111_init_decoder(client, &vdi);
223	}
224	}
225
226	case DECODER_DUMP:
227	{
228	int i;
229
230	for (i = 0; i < 32; i += 16) {
231	int j;
232
233	printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
234	for (j = 0; j < 16; ++j) {
235	printk(" %02x",
236	saa7111_read(client, i + j));
237	}
238	printk("\n");
239	}
240	}
241	break;
242
243	case DECODER_GET_CAPABILITIES:
244	{
245	struct video_decoder_capability *cap = arg;
246
247	cap->flags = VIDEO_DECODER_PAL \|
248	VIDEO_DECODER_NTSC \|
249	VIDEO_DECODER_SECAM \|
250	VIDEO_DECODER_AUTO \|
251	VIDEO_DECODER_CCIR;
252	cap->inputs = 8;
253	cap->outputs = 1;
254	}
255	break;
256
257	case DECODER_GET_STATUS:
258	{
259	int *iarg = arg;
260	int status;
261	int res;
262
263	status = saa7111_read(client, 0x1f);
264	dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
265	status);
266	res = 0;
267	if ((status & (1 << 6)) == 0) {
268	res \|= DECODER_STATUS_GOOD;
269	}
270	switch (decoder->norm) {
271	case VIDEO_MODE_NTSC:
272	res \|= DECODER_STATUS_NTSC;
273	break;
274	case VIDEO_MODE_PAL:
275	res \|= DECODER_STATUS_PAL;
276	break;
277	case VIDEO_MODE_SECAM:
278	res \|= DECODER_STATUS_SECAM;
279	break;
280	default:
281	case VIDEO_MODE_AUTO:
282	if ((status & (1 << 5)) != 0) {
283	res \|= DECODER_STATUS_NTSC;
284	} else {
285	res \|= DECODER_STATUS_PAL;
286	}
287	break;
288	}
289	if ((status & (1 << 0)) != 0) {
290	res \|= DECODER_STATUS_COLOR;
291	}
292	*iarg = res;
293	}
294	break;
295
296	case DECODER_SET_GPIO:
297	{
298	int *iarg = arg;
299	if (0 != *iarg) {
300	saa7111_write(client, 0x11,
301	(decoder->reg[0x11] \| 0x80));
302	} else {
303	saa7111_write(client, 0x11,
304	(decoder->reg[0x11] & 0x7f));
305	}
306	break;
307	}
308
309	case DECODER_SET_VBI_BYPASS:
310	{
311	int *iarg = arg;
312	if (0 != *iarg) {
313	saa7111_write(client, 0x13,
314	(decoder->reg[0x13] & 0xf0) \| 0x0a);
315	} else {
316	saa7111_write(client, 0x13,
317	(decoder->reg[0x13] & 0xf0));
318	}
319	break;
320	}
321
322	case DECODER_SET_NORM:
323	{
324	int *iarg = arg;
325
326	switch (*iarg) {
327
328	case VIDEO_MODE_NTSC:
329	saa7111_write(client, 0x08,
330	(decoder->reg[0x08] & 0x3f) \| 0x40);
331	saa7111_write(client, 0x0e,
332	(decoder->reg[0x0e] & 0x8f));
333	break;
334
335	case VIDEO_MODE_PAL:
336	saa7111_write(client, 0x08,
337	(decoder->reg[0x08] & 0x3f) \| 0x00);
338	saa7111_write(client, 0x0e,
339	(decoder->reg[0x0e] & 0x8f));
340	break;
341
342	case VIDEO_MODE_SECAM:
343	saa7111_write(client, 0x08,
344	(decoder->reg[0x08] & 0x3f) \| 0x00);
345	saa7111_write(client, 0x0e,
346	(decoder->reg[0x0e] & 0x8f) \| 0x50);
347	break;
348
349	case VIDEO_MODE_AUTO:
350	saa7111_write(client, 0x08,
351	(decoder->reg[0x08] & 0x3f) \| 0x80);
352	saa7111_write(client, 0x0e,
353	(decoder->reg[0x0e] & 0x8f));
354	break;
355
356	default:
357	return -EINVAL;
358
359	}
360	decoder->norm = *iarg;
361	}
362	break;
363
364	case DECODER_SET_INPUT:
365	{
366	int *iarg = arg;
367
368	if (iarg < 0 \|\| iarg > 7) {
369	return -EINVAL;
370	}
371
372	if (decoder->input != *iarg) {
373	decoder->input = *iarg;
374	/* select mode */
375	saa7111_write(client, 0x02,
376	(decoder->
377	reg[0x02] & 0xf8) \| decoder->input);
378	/* bypass chrominance trap for modes 4..7 */
379	saa7111_write(client, 0x09,
380	(decoder->
381	reg[0x09] & 0x7f) \| ((decoder->
382	input >
383	3) ? 0x80 :
384	0));
385	}
386	}
387	break;
388
389	case DECODER_SET_OUTPUT:
390	{
391	int *iarg = arg;
392
393	/* not much choice of outputs */
394	if (*iarg != 0) {
395	return -EINVAL;
396	}
397	}
398	break;
399
400	case DECODER_ENABLE_OUTPUT:
401	{
402	int *iarg = arg;
403	int enable = (*iarg != 0);
404
405	if (decoder->enable != enable) {
406	decoder->enable = enable;
407
408	/* RJ: If output should be disabled (for
409	* playing videos), we also need a open PLL.
410	* The input is set to 0 (where no input
411	* source is connected), although this
412	* is not necessary.
413	*
414	* If output should be enabled, we have to
415	* reverse the above.
416	*/
417
418	if (decoder->enable) {
419	saa7111_write(client, 0x02,
420	(decoder->
421	reg[0x02] & 0xf8) \|
422	decoder->input);
423	saa7111_write(client, 0x08,
424	(decoder->reg[0x08] & 0xfb));
425	saa7111_write(client, 0x11,
426	(decoder->
427	reg[0x11] & 0xf3) \| 0x0c);
428	} else {
429	saa7111_write(client, 0x02,
430	(decoder->reg[0x02] & 0xf8));
431	saa7111_write(client, 0x08,
432	(decoder->
433	reg[0x08] & 0xfb) \| 0x04);
434	saa7111_write(client, 0x11,
435	(decoder->reg[0x11] & 0xf3));
436	}
437	}
438	}
439	break;
440
441	case DECODER_SET_PICTURE:
442	{
443	struct video_picture *pic = arg;
444
445	if (decoder->bright != pic->brightness) {
446	/* We want 0 to 255 we get 0-65535 */
447	decoder->bright = pic->brightness;
448	saa7111_write(client, 0x0a, decoder->bright >> 8);
449	}
450	if (decoder->contrast != pic->contrast) {
451	/* We want 0 to 127 we get 0-65535 */
452	decoder->contrast = pic->contrast;
453	saa7111_write(client, 0x0b,
454	decoder->contrast >> 9);
455	}
456	if (decoder->sat != pic->colour) {
457	/* We want 0 to 127 we get 0-65535 */
458	decoder->sat = pic->colour;
459	saa7111_write(client, 0x0c, decoder->sat >> 9);
460	}
461	if (decoder->hue != pic->hue) {
462	/* We want -128 to 127 we get 0-65535 */
463	decoder->hue = pic->hue;
464	saa7111_write(client, 0x0d,
465	(decoder->hue - 32768) >> 8);
466	}
467	}
468	break;
469
470	default:
471	return -EINVAL;
472	}
473
474	return 0;
475	}
476
477	/* ----------------------------------------------------------------------- */
478
479	/*
480	* Generic i2c probe
481	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
482	*/
483	static unsigned short normal_i2c[] = { I2C_SAA7111 >> 1, I2C_CLIENT_END };
1da177e4	484
68cc9d0b	485	static unsigned short ignore = I2C_CLIENT_END;
1da177e4 LT	486
	487	static struct i2c_client_address_data addr_data = {
	488	.normal_i2c = normal_i2c,
68cc9d0b JD	489	.probe = &ignore,
68cc9d0b JD	490	.ignore = &ignore,
1da177e4 LT	491	};
	492
	493	static struct i2c_driver i2c_driver_saa7111;
	494
	495	static int
	496	saa7111_detect_client (struct i2c_adapter *adapter,
	497	int address,
	498	int kind)
	499	{
	500	int i;
	501	struct i2c_client *client;
	502	struct saa7111 *decoder;
	503	struct video_decoder_init vdi;
	504
	505	dprintk(1,
	506	KERN_INFO
	507	"saa7111.c: detecting saa7111 client on address 0x%x\n",
	508	address << 1);
	509
	510	/* Check if the adapter supports the needed features */
	511	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	512	return 0;
	513
	514	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	515	if (client == 0)
	516	return -ENOMEM;
	517	memset(client, 0, sizeof(struct i2c_client));
	518	client->addr = address;
	519	client->adapter = adapter;
	520	client->driver = &i2c_driver_saa7111;
	521	client->flags = I2C_CLIENT_ALLOW_USE;
	522	strlcpy(I2C_NAME(client), "saa7111", sizeof(I2C_NAME(client)));
	523
	524	decoder = kmalloc(sizeof(struct saa7111), GFP_KERNEL);
	525	if (decoder == NULL) {
	526	kfree(client);
	527	return -ENOMEM;
	528	}
	529	memset(decoder, 0, sizeof(struct saa7111));
	530	decoder->norm = VIDEO_MODE_NTSC;
	531	decoder->input = 0;
	532	decoder->enable = 1;
	533	decoder->bright = 32768;
	534	decoder->contrast = 32768;
	535	decoder->hue = 32768;
	536	decoder->sat = 32768;
	537	i2c_set_clientdata(client, decoder);
	538
	539	i = i2c_attach_client(client);
	540	if (i) {
	541	kfree(client);
	542	kfree(decoder);
	543	return i;
	544	}
	545
	546	vdi.data = saa7111_i2c_init;
	547	vdi.len = sizeof(saa7111_i2c_init);
	548	i = saa7111_init_decoder(client, &vdi);
	549	if (i < 0) {
	550	dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
	551	I2C_NAME(client), i);
	552	} else {
	553	dprintk(1,
	554	KERN_INFO
555	"%s_attach: chip version %x at address 0x%x\n",
556	I2C_NAME(client), saa7111_read(client, 0x00) >> 4,
557	client->addr << 1);
558	}
559
560	return 0;
561	}
562
563	static int
564	saa7111_attach_adapter (struct i2c_adapter *adapter)
565	{
566	dprintk(1,
567	KERN_INFO
568	"saa7111.c: starting probe for adapter %s (0x%x)\n",
569	I2C_NAME(adapter), adapter->id);
570	return i2c_probe(adapter, &addr_data, &saa7111_detect_client);
571	}
572
573	static int
574	saa7111_detach_client (struct i2c_client *client)
575	{
576	struct saa7111 *decoder = i2c_get_clientdata(client);
577	int err;
578
579	err = i2c_detach_client(client);
580	if (err) {
581	return err;
582	}
583
584	kfree(decoder);
585	kfree(client);
586
587	return 0;
588	}
589
590	/* ----------------------------------------------------------------------- */
591
592	static struct i2c_driver i2c_driver_saa7111 = {
593	.owner = THIS_MODULE,
594	.name = "saa7111",
595
596	.id = I2C_DRIVERID_SAA7111A,
1da177e4 LT	597
	598	.attach_adapter = saa7111_attach_adapter,
	599	.detach_client = saa7111_detach_client,
	600	.command = saa7111_command,
	601	};
	602
	603	static int __init
	604	saa7111_init (void)
	605	{
	606	return i2c_add_driver(&i2c_driver_saa7111);
	607	}
	608
	609	static void __exit
	610	saa7111_exit (void)
	611	{
	612	i2c_del_driver(&i2c_driver_saa7111);
	613	}
	614
	615	module_init(saa7111_init);
	616	module_exit(saa7111_exit);