[mirror_ubuntu-zesty-kernel.git] / drivers / media / video / saa711x.c

/*
 * saa711x - Philips SAA711x video decoder driver version 0.0.1
 *
 * To do: Now, it handles only saa7113/7114. Should be improved to
 * handle all Philips saa711x devices.
 *
 * Based on saa7113 driver from Dave Perks <dperks@ibm.net>
 *
 * 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 <asm/uaccess.h>
#include <linux/videodev.h>

MODULE_DESCRIPTION("Philips SAA711x 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 saa711x {
	unsigned char reg[32];

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

#define   I2C_SAA7113        0x4A
#define   I2C_SAA7114        0x42

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

static inline int
saa711x_write (struct i2c_client *client,
	       u8                 reg,
	       u8                 value)
{
	struct saa711x *decoder = i2c_get_clientdata(client);

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

static int
saa711x_write_block (struct i2c_client *client,
		     const u8          *data,
		     unsigned int       len)
{
	int ret = -1;
	u8 reg;

	/* the saa711x 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 saa711x *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 = saa711x_write(client, reg,
						 *data++)) < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

static int
saa711x_init_decoder (struct i2c_client *client,
	      struct video_decoder_init *init)
{
	return saa711x_write_block(client, init->data, init->len);
}

static inline int
saa711x_read (struct i2c_client *client,
	      u8                 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

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

static const unsigned char saa711x_i2c_init[] = {
	0x00, 0x00,	/* PH711x_CHIP_VERSION 00 - ID byte */
	0x01, 0x08,	/* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
	0x02, 0xc0,	/* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
	0x03, 0x23,	/* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
	0x04, 0x00,	/* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
	0x05, 0x00,	/* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
	0x06, 0xeb,	/* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
	0x07, 0xe0,	/* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
	0x08, 0x88,	/* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
	0x09, 0x00,	/* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
	0x0a, 0x80,	/* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
	0x0b, 0x47,	/* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
	0x0c, 0x40,	/* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
	0x0d, 0x00,	/* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
	0x0e, 0x01,	/* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
	0x0f, 0xaa,	/* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
	0x10, 0x00,	/* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
	0x11, 0x1C,	/* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
	0x12, 0x01,	/* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
	0x13, 0x00,	/* PH711x_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,	/* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
	0x16, 0x00,	/* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
	0x17, 0x00,	/* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
};

static int
saa711x_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa711x *decoder = i2c_get_clientdata(client);

	switch (cmd) {

	case 0:
	case DECODER_INIT:
	{
		struct video_decoder_init *init = arg;
		if (NULL != init)
			return saa711x_init_decoder(client, init);
		else {
			struct video_decoder_init vdi;
			vdi.data = saa711x_i2c_init;
			vdi.len = sizeof(saa711x_i2c_init);
			return saa711x_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",
				       saa711x_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 = saa711x_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) {
			saa711x_write(client, 0x11,
				(decoder->reg[0x11] | 0x80));
		} else {
			saa711x_write(client, 0x11,
				(decoder->reg[0x11] & 0x7f));
		}
		break;
	}

	case DECODER_SET_VBI_BYPASS:
	{
		int *iarg = arg;
		if (0 != *iarg) {
			saa711x_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0) | 0x0a);
		} else {
			saa711x_write(client, 0x13,
				(decoder->reg[0x13] & 0xf0));
		}
		break;
	}

	case DECODER_SET_NORM:
	{
		int *iarg = arg;

		switch (*iarg) {

		case VIDEO_MODE_NTSC:
			saa711x_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x40);
			saa711x_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_PAL:
			saa711x_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x00);
			saa711x_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f));
			break;

		case VIDEO_MODE_SECAM:
			saa711x_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x00);
			saa711x_write(client, 0x0e,
				      (decoder->reg[0x0e] & 0x8f) | 0x50);
			break;

		case VIDEO_MODE_AUTO:
			saa711x_write(client, 0x08,
				      (decoder->reg[0x08] & 0x3f) | 0x80);
			saa711x_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 */
			saa711x_write(client, 0x02,
				      (decoder->reg[0x02] & 0xf0) | decoder->input);
			/* bypass chrominance trap for modes 4..7 */
			saa711x_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) {
				saa711x_write(client, 0x02,
					      (decoder->
					       reg[0x02] & 0xf8) |
					      decoder->input);
				saa711x_write(client, 0x08,
					      (decoder->reg[0x08] & 0xfb));
				saa711x_write(client, 0x11,
					      (decoder->
					       reg[0x11] & 0xf3) | 0x0c);
			} else {
				saa711x_write(client, 0x02,
					      (decoder->reg[0x02] & 0xf8));
				saa711x_write(client, 0x08,
					      (decoder->
					       reg[0x08] & 0xfb) | 0x04);
				saa711x_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;
			saa711x_write(client, 0x0a, decoder->bright >> 8);
		}
		if (decoder->contrast != pic->contrast) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->contrast = pic->contrast;
			saa711x_write(client, 0x0b,
				      decoder->contrast >> 9);
		}
		if (decoder->sat != pic->colour) {
			/* We want 0 to 127 we get 0-65535 */
			decoder->sat = pic->colour;
			saa711x_write(client, 0x0c, decoder->sat >> 9);
		}
		if (decoder->hue != pic->hue) {
			/* We want -128 to 127 we get 0-65535 */
			decoder->hue = pic->hue;
			saa711x_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_SAA7114>>1,         /* saa7114 */
	I2C_CLIENT_END
};

I2C_CLIENT_INSMOD;


static struct i2c_driver i2c_driver_saa711x;

static int
saa711x_detect_client (struct i2c_adapter *adapter,
		       int                 address,
		       int                 kind)
{
	int i;
	struct i2c_client *client;
	struct saa711x *decoder;
	struct video_decoder_init vdi;

	dprintk(1,
		KERN_INFO
		"saa711x.c: detecting saa711x 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_saa711x;
	strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
	decoder = kmalloc(sizeof(struct saa711x), GFP_KERNEL);
	if (decoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	memset(decoder, 0, sizeof(struct saa711x));
	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 = saa711x_i2c_init;
	vdi.len = sizeof(saa711x_i2c_init);
	i = saa711x_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), saa711x_read(client, 0x00) >> 4,
			client->addr << 1);
	}

	return 0;
}

static int
saa711x_attach_adapter (struct i2c_adapter *adapter)
{
	dprintk(1,
		KERN_INFO
		"saa711x.c: starting probe for adapter %s (0x%x)\n",
		I2C_NAME(adapter), adapter->id);
	return i2c_probe(adapter, &addr_data, &saa711x_detect_client);
}

static int
saa711x_detach_client (struct i2c_client *client)
{
	struct saa711x *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_saa711x = {
	.owner = THIS_MODULE,
	.name = "saa711x",

	.id = I2C_DRIVERID_SAA711X,

	.attach_adapter = saa711x_attach_adapter,
	.detach_client = saa711x_detach_client,
	.command = saa711x_command,
};

static int __init
saa711x_init (void)
{
	return i2c_add_driver(&i2c_driver_saa711x);
}

static void __exit
saa711x_exit (void)
{
	i2c_del_driver(&i2c_driver_saa711x);
}

module_init(saa711x_init);
module_exit(saa711x_exit);
Commit	Line	Data
340622c5	1	/*
404b32fb	2	* saa711x - Philips SAA711x video decoder driver version 0.0.1
340622c5	3	*
404b32fb MCC	4	* To do: Now, it handles only saa7113/7114. Should be improved to
404b32fb MCC	5	* handle all Philips saa711x devices.
340622c5	6	*
404b32fb	7	* Based on saa7113 driver from Dave Perks <dperks@ibm.net>
340622c5 DG	8	*
	9	* This program is free software; you can redistribute it and/or modify
	10	* it under the terms of the GNU General Public License as published by
	11	* the Free Software Foundation; either version 2 of the License, or
	12	* (at your option) any later version.
	13	*
	14	* This program is distributed in the hope that it will be useful,
	15	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	* GNU General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with this program; if not, write to the Free Software
	21	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	22	*/
	23
	24	#include <linux/module.h>
	25	#include <linux/init.h>
	26	#include <linux/delay.h>
	27	#include <linux/errno.h>
	28	#include <linux/fs.h>
	29	#include <linux/kernel.h>
	30	#include <linux/major.h>
	31	#include <linux/slab.h>
	32	#include <linux/mm.h>
	33	#include <linux/pci.h>
	34	#include <linux/signal.h>
	35	#include <asm/io.h>
	36	#include <asm/pgtable.h>
	37	#include <asm/page.h>
	38	#include <linux/sched.h>
340622c5 DG	39	#include <linux/types.h>
	40	#include <asm/uaccess.h>
	41	#include <linux/videodev.h>
	42
404b32fb	43	MODULE_DESCRIPTION("Philips SAA711x video decoder driver");
340622c5 DG	44	MODULE_AUTHOR("Dave Perks, Jose Ignacio Gijon, Joerg Heckenbach, Mark McClelland, Dwaine Garden");
	45	MODULE_LICENSE("GPL");
	46
	47	#include <linux/i2c.h>
	48	#include <linux/i2c-dev.h>
	49
	50	#define I2C_NAME(s) (s)->name
	51
	52	#include <linux/video_decoder.h>
	53
	54	static int debug = 0;
	55	MODULE_PARM(debug, "i");
	56	MODULE_PARM_DESC(debug, " Set the default Debug level. Default: 0 (Off) - (0-1)");
	57
	58
	59	#define dprintk(num, format, args...) \
	60	do { \
	61	if (debug >= num) \
674434c6	62	printk(format, ##args); \
340622c5 DG	63	} while (0)
	64
	65	/* ----------------------------------------------------------------------- */
	66
404b32fb	67	struct saa711x {
340622c5 DG	68	unsigned char reg[32];
	69
	70	int norm;
	71	int input;
	72	int enable;
	73	int bright;
	74	int contrast;
	75	int hue;
	76	int sat;
	77	};
	78
	79	#define I2C_SAA7113 0x4A
791b403f	80	#define I2C_SAA7114 0x42
340622c5 DG	81
	82	/* ----------------------------------------------------------------------- */
	83
	84	static inline int
404b32fb	85	saa711x_write (struct i2c_client *client,
340622c5 DG	86	u8 reg,
	87	u8 value)
	88	{
404b32fb	89	struct saa711x *decoder = i2c_get_clientdata(client);
340622c5 DG	90
	91	decoder->reg[reg] = value;
	92	return i2c_smbus_write_byte_data(client, reg, value);
	93	}
	94
	95	static int
404b32fb	96	saa711x_write_block (struct i2c_client *client,
340622c5 DG	97	const u8 *data,
	98	unsigned int len)
	99	{
	100	int ret = -1;
	101	u8 reg;
	102
404b32fb	103	/* the saa711x has an autoincrement function, use it if
340622c5 DG	104	* the adapter understands raw I2C */
	105	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
	106	/* do raw I2C, not smbus compatible */
404b32fb	107	struct saa711x *decoder = i2c_get_clientdata(client);
340622c5 DG	108	struct i2c_msg msg;
	109	u8 block_data[32];
	110
	111	msg.addr = client->addr;
	112	msg.flags = 0;
	113	while (len >= 2) {
	114	msg.buf = (char *) block_data;
	115	msg.len = 0;
	116	block_data[msg.len++] = reg = data[0];
	117	do {
	118	block_data[msg.len++] =
	119	decoder->reg[reg++] = data[1];
	120	len -= 2;
	121	data += 2;
	122	} while (len >= 2 && data[0] == reg &&
	123	msg.len < 32);
	124	if ((ret = i2c_transfer(client->adapter,
	125	&msg, 1)) < 0)
	126	break;
	127	}
	128	} else {
	129	/* do some slow I2C emulation kind of thing */
	130	while (len >= 2) {
	131	reg = *data++;
404b32fb	132	if ((ret = saa711x_write(client, reg,
340622c5 DG	133	*data++)) < 0)
	134	break;
	135	len -= 2;
	136	}
	137	}
	138
	139	return ret;
	140	}
	141
	142	static int
404b32fb	143	saa711x_init_decoder (struct i2c_client *client,
340622c5 DG	144	struct video_decoder_init *init)
340622c5 DG	145	{
404b32fb	146	return saa711x_write_block(client, init->data, init->len);
340622c5 DG	147	}
	148
	149	static inline int
404b32fb	150	saa711x_read (struct i2c_client *client,
340622c5 DG	151	u8 reg)
	152	{
	153	return i2c_smbus_read_byte_data(client, reg);
	154	}
	155
	156	/* ----------------------------------------------------------------------- */
	157
404b32fb MCC	158	static const unsigned char saa711x_i2c_init[] = {
	159	0x00, 0x00, /* PH711x_CHIP_VERSION 00 - ID byte */
	160	0x01, 0x08, /* PH711x_INCREMENT_DELAY - (1) (1) (1) (1) IDEL3 IDEL2 IDELL1 IDEL0 */
	161	0x02, 0xc0, /* PH711x_ANALOG_INPUT_CONTR_1 - FUSE1 FUSE0 GUDL1 GUDL0 MODE3 MODE2 MODE1 MODE0 */
	162	0x03, 0x23, /* PH711x_ANALOG_INPUT_CONTR_2 - (1) HLNRS VBSL WPOFF HOLDG GAFIX GAI28 GAI18 */
	163	0x04, 0x00, /* PH711x_ANALOG_INPUT_CONTR_3 - GAI17 GAI16 GAI15 GAI14 GAI13 GAI12 GAI11 GAI10 */
	164	0x05, 0x00, /* PH711x_ANALOG_INPUT_CONTR_4 - GAI27 GAI26 GAI25 GAI24 GAI23 GAI22 GAI21 GAI20 */
	165	0x06, 0xeb, /* PH711x_HORIZONTAL_SYNC_START - HSB7 HSB6 HSB5 HSB4 HSB3 HSB2 HSB1 HSB0 */
	166	0x07, 0xe0, /* PH711x_HORIZONTAL_SYNC_STOP - HSS7 HSS6 HSS5 HSS4 HSS3 HSS2 HSS1 HSS0 */
	167	0x08, 0x88, /* PH711x_SYNC_CONTROL - AUFD FSEL FOET HTC1 HTC0 HPLL VNOI1 VNOI0 */
	168	0x09, 0x00, /* PH711x_LUMINANCE_CONTROL - BYPS PREF BPSS1 BPSS0 VBLB UPTCV APER1 APER0 */
	169	0x0a, 0x80, /* PH711x_LUMINANCE_BRIGHTNESS - BRIG7 BRIG6 BRIG5 BRIG4 BRIG3 BRIG2 BRIG1 BRIG0 */
	170	0x0b, 0x47, /* PH711x_LUMINANCE_CONTRAST - CONT7 CONT6 CONT5 CONT4 CONT3 CONT2 CONT1 CONT0 */
	171	0x0c, 0x40, /* PH711x_CHROMA_SATURATION - SATN7 SATN6 SATN5 SATN4 SATN3 SATN2 SATN1 SATN0 */
	172	0x0d, 0x00, /* PH711x_CHROMA_HUE_CONTROL - HUEC7 HUEC6 HUEC5 HUEC4 HUEC3 HUEC2 HUEC1 HUEC0 */
	173	0x0e, 0x01, /* PH711x_CHROMA_CONTROL - CDTO CSTD2 CSTD1 CSTD0 DCCF FCTC CHBW1 CHBW0 */
	174	0x0f, 0xaa, /* PH711x_CHROMA_GAIN_CONTROL - ACGC CGAIN6 CGAIN5 CGAIN4 CGAIN3 CGAIN2 CGAIN1 CGAIN0 */
	175	0x10, 0x00, /* PH711x_FORMAT_DELAY_CONTROL - OFTS1 OFTS0 HDEL1 HDEL0 VRLN YDEL2 YDEL1 YDEL0 */
	176	0x11, 0x1C, /* PH711x_OUTPUT_CONTROL_1 - GPSW1 CM99 GPSW0 HLSEL OEYC OERT VIPB COLO */
	177	0x12, 0x01, /* PH711x_OUTPUT_CONTROL_2 - RTSE13 RTSE12 RTSE11 RTSE10 RTSE03 RTSE02 RTSE01 RTSE00 */
	178	0x13, 0x00, /* PH711x_OUTPUT_CONTROL_3 - ADLSB (1) (1) OLDSB FIDP (1) AOSL1 AOSL0 */
340622c5	179	0x14, 0x00, /* RESERVED 14 - (1) (1) (1) (1) (1) (1) (1) (1) */
404b32fb MCC	180	0x15, 0x00, /* PH711x_V_GATE1_START - VSTA7 VSTA6 VSTA5 VSTA4 VSTA3 VSTA2 VSTA1 VSTA0 */
	181	0x16, 0x00, /* PH711x_V_GATE1_STOP - VSTO7 VSTO6 VSTO5 VSTO4 VSTO3 VSTO2 VSTO1 VSTO0 */
	182	0x17, 0x00, /* PH711x_V_GATE1_MSB - (1) (1) (1) (1) (1) (1) VSTO8 VSTA8 */
340622c5 DG	183	};
	184
	185	static int
404b32fb	186	saa711x_command (struct i2c_client *client,
340622c5 DG	187	unsigned int cmd,
	188	void *arg)
	189	{
404b32fb	190	struct saa711x *decoder = i2c_get_clientdata(client);
340622c5 DG	191
	192	switch (cmd) {
	193
	194	case 0:
	195	case DECODER_INIT:
	196	{
	197	struct video_decoder_init *init = arg;
	198	if (NULL != init)
404b32fb	199	return saa711x_init_decoder(client, init);
340622c5 DG	200	else {
340622c5 DG	201	struct video_decoder_init vdi;
404b32fb MCC	202	vdi.data = saa711x_i2c_init;
	203	vdi.len = sizeof(saa711x_i2c_init);
	204	return saa711x_init_decoder(client, &vdi);
340622c5 DG	205	}
	206	}
	207
	208	case DECODER_DUMP:
	209	{
	210	int i;
	211
	212	for (i = 0; i < 32; i += 16) {
	213	int j;
	214
	215	printk(KERN_DEBUG "%s: %03x", I2C_NAME(client), i);
	216	for (j = 0; j < 16; ++j) {
	217	printk(" %02x",
404b32fb	218	saa711x_read(client, i + j));
340622c5 DG	219	}
	220	printk("\n");
	221	}
	222	}
	223	break;
	224
	225	case DECODER_GET_CAPABILITIES:
	226	{
	227	struct video_decoder_capability *cap = arg;
	228
	229	cap->flags = VIDEO_DECODER_PAL \|
	230	VIDEO_DECODER_NTSC \|
	231	VIDEO_DECODER_SECAM \|
	232	VIDEO_DECODER_AUTO \|
	233	VIDEO_DECODER_CCIR;
	234	cap->inputs = 8;
	235	cap->outputs = 1;
	236	}
	237	break;
	238
	239	case DECODER_GET_STATUS:
	240	{
	241	int *iarg = arg;
	242	int status;
	243	int res;
	244
404b32fb	245	status = saa711x_read(client, 0x1f);
340622c5 DG	246	dprintk(1, KERN_DEBUG "%s status: 0x%02x\n", I2C_NAME(client),
	247	status);
	248	res = 0;
	249	if ((status & (1 << 6)) == 0) {
	250	res \|= DECODER_STATUS_GOOD;
	251	}
	252	switch (decoder->norm) {
	253	case VIDEO_MODE_NTSC:
	254	res \|= DECODER_STATUS_NTSC;
	255	break;
	256	case VIDEO_MODE_PAL:
	257	res \|= DECODER_STATUS_PAL;
	258	break;
	259	case VIDEO_MODE_SECAM:
	260	res \|= DECODER_STATUS_SECAM;
	261	break;
	262	default:
	263	case VIDEO_MODE_AUTO:
	264	if ((status & (1 << 5)) != 0) {
	265	res \|= DECODER_STATUS_NTSC;
	266	} else {
	267	res \|= DECODER_STATUS_PAL;
	268	}
	269	break;
	270	}
	271	if ((status & (1 << 0)) != 0) {
	272	res \|= DECODER_STATUS_COLOR;
	273	}
	274	*iarg = res;
	275	}
	276	break;
	277
	278	case DECODER_SET_GPIO:
	279	{
	280	int *iarg = arg;
	281	if (0 != *iarg) {
404b32fb	282	saa711x_write(client, 0x11,
340622c5 DG	283	(decoder->reg[0x11] \| 0x80));
340622c5 DG	284	} else {
404b32fb	285	saa711x_write(client, 0x11,
340622c5 DG	286	(decoder->reg[0x11] & 0x7f));
	287	}
	288	break;
	289	}
	290
	291	case DECODER_SET_VBI_BYPASS:
	292	{
	293	int *iarg = arg;
	294	if (0 != *iarg) {
404b32fb	295	saa711x_write(client, 0x13,
340622c5 DG	296	(decoder->reg[0x13] & 0xf0) \| 0x0a);
340622c5 DG	297	} else {
404b32fb	298	saa711x_write(client, 0x13,
340622c5 DG	299	(decoder->reg[0x13] & 0xf0));
	300	}
	301	break;
	302	}
	303
	304	case DECODER_SET_NORM:
	305	{
	306	int *iarg = arg;
	307
	308	switch (*iarg) {
	309
	310	case VIDEO_MODE_NTSC:
404b32fb	311	saa711x_write(client, 0x08,
340622c5	312	(decoder->reg[0x08] & 0x3f) \| 0x40);
404b32fb	313	saa711x_write(client, 0x0e,
340622c5 DG	314	(decoder->reg[0x0e] & 0x8f));
	315	break;
	316
	317	case VIDEO_MODE_PAL:
404b32fb	318	saa711x_write(client, 0x08,
340622c5	319	(decoder->reg[0x08] & 0x3f) \| 0x00);
404b32fb	320	saa711x_write(client, 0x0e,
340622c5 DG	321	(decoder->reg[0x0e] & 0x8f));
	322	break;
	323
	324	case VIDEO_MODE_SECAM:
404b32fb	325	saa711x_write(client, 0x08,
1bcd2a36	326	(decoder->reg[0x08] & 0x3f) \| 0x00);
404b32fb	327	saa711x_write(client, 0x0e,
340622c5 DG	328	(decoder->reg[0x0e] & 0x8f) \| 0x50);
	329	break;
	330
	331	case VIDEO_MODE_AUTO:
404b32fb	332	saa711x_write(client, 0x08,
340622c5	333	(decoder->reg[0x08] & 0x3f) \| 0x80);
404b32fb	334	saa711x_write(client, 0x0e,
340622c5 DG	335	(decoder->reg[0x0e] & 0x8f));
	336	break;
	337
	338	default:
	339	return -EINVAL;
	340
	341	}
	342	decoder->norm = *iarg;
	343	}
	344	break;
	345
	346	case DECODER_SET_INPUT:
	347	{
	348	int *iarg = arg;
	349	if (iarg < 0 \|\| iarg > 9) {
	350	return -EINVAL;
	351	}
	352	if (decoder->input != *iarg) {
	353	decoder->input = *iarg;
	354	/* select mode */
404b32fb	355	saa711x_write(client, 0x02,
340622c5 DG	356	(decoder->reg[0x02] & 0xf0) \| decoder->input);
340622c5 DG	357	/* bypass chrominance trap for modes 4..7 */
404b32fb	358	saa711x_write(client, 0x09,
340622c5 DG	359	(decoder->reg[0x09] & 0x7f) \| ((decoder->input > 3) ? 0x80 : 0));
	360	}
	361	}
	362	break;
	363
	364	case DECODER_SET_OUTPUT:
	365	{
	366	int *iarg = arg;
	367
	368	/* not much choice of outputs */
	369	if (*iarg != 0) {
	370	return -EINVAL;
	371	}
	372	}
	373	break;
	374
	375	case DECODER_ENABLE_OUTPUT:
	376	{
	377	int *iarg = arg;
	378	int enable = (*iarg != 0);
	379
	380	if (decoder->enable != enable) {
	381	decoder->enable = enable;
	382
	383	/* RJ: If output should be disabled (for
	384	* playing videos), we also need a open PLL.
	385	* The input is set to 0 (where no input
	386	* source is connected), although this
	387	* is not necessary.
	388	*
	389	* If output should be enabled, we have to
	390	* reverse the above.
	391	*/
	392
	393	if (decoder->enable) {
404b32fb	394	saa711x_write(client, 0x02,
340622c5 DG	395	(decoder->
	396	reg[0x02] & 0xf8) \|
	397	decoder->input);
404b32fb	398	saa711x_write(client, 0x08,
340622c5	399	(decoder->reg[0x08] & 0xfb));
404b32fb	400	saa711x_write(client, 0x11,
340622c5 DG	401	(decoder->
	402	reg[0x11] & 0xf3) \| 0x0c);
	403	} else {
404b32fb	404	saa711x_write(client, 0x02,
340622c5	405	(decoder->reg[0x02] & 0xf8));
404b32fb	406	saa711x_write(client, 0x08,
340622c5 DG	407	(decoder->
340622c5 DG	408	reg[0x08] & 0xfb) \| 0x04);
404b32fb	409	saa711x_write(client, 0x11,
340622c5 DG	410	(decoder->reg[0x11] & 0xf3));
	411	}
	412	}
	413	}
	414	break;
	415
	416	case DECODER_SET_PICTURE:
	417	{
	418	struct video_picture *pic = arg;
	419
	420	if (decoder->bright != pic->brightness) {
	421	/* We want 0 to 255 we get 0-65535 */
	422	decoder->bright = pic->brightness;
404b32fb	423	saa711x_write(client, 0x0a, decoder->bright >> 8);
340622c5 DG	424	}
	425	if (decoder->contrast != pic->contrast) {
	426	/* We want 0 to 127 we get 0-65535 */
	427	decoder->contrast = pic->contrast;
404b32fb	428	saa711x_write(client, 0x0b,
340622c5 DG	429	decoder->contrast >> 9);
	430	}
	431	if (decoder->sat != pic->colour) {
	432	/* We want 0 to 127 we get 0-65535 */
	433	decoder->sat = pic->colour;
404b32fb	434	saa711x_write(client, 0x0c, decoder->sat >> 9);
340622c5 DG	435	}
	436	if (decoder->hue != pic->hue) {
	437	/* We want -128 to 127 we get 0-65535 */
	438	decoder->hue = pic->hue;
404b32fb	439	saa711x_write(client, 0x0d,
340622c5 DG	440	(decoder->hue - 32768) >> 8);
	441	}
	442	}
	443	break;
	444
	445	default:
	446	return -EINVAL;
	447	}
	448
	449	return 0;
	450	}
	451
	452	/* ----------------------------------------------------------------------- */
	453
	454	/*
	455	* Generic i2c probe
	456	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
	457	*/
	458
	459	/* standard i2c insmod options */
	460	static unsigned short normal_i2c[] = {
4ac97914	461	I2C_SAA7113>>1, /* saa7113 */
791b403f	462	I2C_SAA7114>>1, /* saa7114 */
4ac97914	463	I2C_CLIENT_END
340622c5 DG	464	};
	465
	466	I2C_CLIENT_INSMOD;
	467
	468
404b32fb	469	static struct i2c_driver i2c_driver_saa711x;
340622c5 DG	470
340622c5 DG	471	static int
404b32fb	472	saa711x_detect_client (struct i2c_adapter *adapter,
340622c5 DG	473	int address,
	474	int kind)
	475	{
	476	int i;
	477	struct i2c_client *client;
404b32fb	478	struct saa711x *decoder;
340622c5 DG	479	struct video_decoder_init vdi;
	480
	481	dprintk(1,
	482	KERN_INFO
404b32fb	483	"saa711x.c: detecting saa711x client on address 0x%x\n",
340622c5 DG	484	address << 1);
	485
	486	/* Check if the adapter supports the needed features */
	487	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	488	return 0;
	489
	490	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	491	if (client == 0)
	492	return -ENOMEM;
	493	memset(client, 0, sizeof(struct i2c_client));
	494	client->addr = address;
	495	client->adapter = adapter;
404b32fb	496	client->driver = &i2c_driver_saa711x;
404b32fb MCC	497	strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
404b32fb MCC	498	decoder = kmalloc(sizeof(struct saa711x), GFP_KERNEL);
340622c5 DG	499	if (decoder == NULL) {
	500	kfree(client);
	501	return -ENOMEM;
	502	}
404b32fb	503	memset(decoder, 0, sizeof(struct saa711x));
340622c5 DG	504	decoder->norm = VIDEO_MODE_NTSC;
	505	decoder->input = 0;
	506	decoder->enable = 1;
	507	decoder->bright = 32768;
	508	decoder->contrast = 32768;
	509	decoder->hue = 32768;
	510	decoder->sat = 32768;
	511	i2c_set_clientdata(client, decoder);
	512
	513	i = i2c_attach_client(client);
	514	if (i) {
	515	kfree(client);
	516	kfree(decoder);
	517	return i;
	518	}
	519
404b32fb MCC	520	vdi.data = saa711x_i2c_init;
	521	vdi.len = sizeof(saa711x_i2c_init);
	522	i = saa711x_init_decoder(client, &vdi);
340622c5 DG	523	if (i < 0) {
	524	dprintk(1, KERN_ERR "%s_attach error: init status %d\n",
	525	I2C_NAME(client), i);
	526	} else {
	527	dprintk(1,
	528	KERN_INFO
	529	"%s_attach: chip version %x at address 0x%x\n",
404b32fb	530	I2C_NAME(client), saa711x_read(client, 0x00) >> 4,
340622c5 DG	531	client->addr << 1);
	532	}
	533
	534	return 0;
	535	}
	536
	537	static int
404b32fb	538	saa711x_attach_adapter (struct i2c_adapter *adapter)
340622c5 DG	539	{
	540	dprintk(1,
	541	KERN_INFO
404b32fb	542	"saa711x.c: starting probe for adapter %s (0x%x)\n",
340622c5	543	I2C_NAME(adapter), adapter->id);
404b32fb	544	return i2c_probe(adapter, &addr_data, &saa711x_detect_client);
340622c5 DG	545	}
	546
	547	static int
404b32fb	548	saa711x_detach_client (struct i2c_client *client)
340622c5	549	{
404b32fb	550	struct saa711x *decoder = i2c_get_clientdata(client);
340622c5 DG	551	int err;
	552
	553	err = i2c_detach_client(client);
	554	if (err) {
	555	return err;
	556	}
	557
	558	kfree(decoder);
	559	kfree(client);
	560
	561	return 0;
	562	}
	563
	564	/* ----------------------------------------------------------------------- */
	565
404b32fb	566	static struct i2c_driver i2c_driver_saa711x = {
340622c5	567	.owner = THIS_MODULE,
404b32fb	568	.name = "saa711x",
340622c5	569
404b32fb	570	.id = I2C_DRIVERID_SAA711X,
340622c5	571
404b32fb MCC	572	.attach_adapter = saa711x_attach_adapter,
	573	.detach_client = saa711x_detach_client,
	574	.command = saa711x_command,
340622c5 DG	575	};
	576
	577	static int __init
404b32fb	578	saa711x_init (void)
340622c5	579	{
404b32fb	580	return i2c_add_driver(&i2c_driver_saa711x);
340622c5 DG	581	}
	582
	583	static void __exit
404b32fb	584	saa711x_exit (void)
340622c5	585	{
404b32fb	586	i2c_del_driver(&i2c_driver_saa711x);
340622c5 DG	587	}
340622c5 DG	588
404b32fb MCC	589	module_init(saa711x_init);
404b32fb MCC	590	module_exit(saa711x_exit);