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

/* 
 * saa7185 - Philips SAA7185B video encoder driver version 0.0.3
 *
 * Copyright (C) 1998 Dave Perks <dperks@ibm.net>
 *
 * Slight changes for video timing and attachment output by
 * Wolfgang Scherr <scherr@net4you.net>
 *
 * Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
 *    - moved over to linux>=2.4.x i2c protocol (1/1/2003)
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/module.h>
#include <linux/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 SAA7185 video encoder 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_encoder.h>

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

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

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

struct saa7185 {
	unsigned char reg[128];

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

#define   I2C_SAA7185        0x88

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

static inline int
saa7185_read (struct i2c_client *client)
{
	return i2c_smbus_read_byte(client);
}

static int
saa7185_write (struct i2c_client *client,
	       u8                 reg,
	       u8                 value)
{
	struct saa7185 *encoder = i2c_get_clientdata(client);

	dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);
	encoder->reg[reg] = value;
	return i2c_smbus_write_byte_data(client, reg, value);
}

static int
saa7185_write_block (struct i2c_client *client,
		     const u8          *data,
		     unsigned int       len)
{
	int ret = -1;
	u8 reg;

	/* the adv7175 has an autoincrement function, use it if
	 * the adapter understands raw I2C */
	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
		/* do raw I2C, not smbus compatible */
		struct saa7185 *encoder = 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++] =
				    encoder->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 = saa7185_write(client, reg,
						 *data++)) < 0)
				break;
			len -= 2;
		}
	}

	return ret;
}

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

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

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

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

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

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

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

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

	/* The following should not be needed */

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

	/* Field length controls */

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

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

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

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

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

static int
saa7185_command (struct i2c_client *client,
		 unsigned int       cmd,
		 void              *arg)
{
	struct saa7185 *encoder = i2c_get_clientdata(client);

	switch (cmd) {

	case 0:
		saa7185_write_block(client, init_common,
				    sizeof(init_common));
		switch (encoder->norm) {

		case VIDEO_MODE_NTSC:
			saa7185_write_block(client, init_ntsc,
					    sizeof(init_ntsc));
			break;

		case VIDEO_MODE_PAL:
			saa7185_write_block(client, init_pal,
					    sizeof(init_pal));
			break;
		}

		break;

	case ENCODER_GET_CAPABILITIES:
	{
		struct video_encoder_capability *cap = arg;

		cap->flags =
		    VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC |
		    VIDEO_ENCODER_SECAM | VIDEO_ENCODER_CCIR;
		cap->inputs = 1;
		cap->outputs = 1;
	}
		break;

	case ENCODER_SET_NORM:
	{
		int *iarg = arg;

		//saa7185_write_block(client, init_common, sizeof(init_common));

		switch (*iarg) {

		case VIDEO_MODE_NTSC:
			saa7185_write_block(client, init_ntsc,
					    sizeof(init_ntsc));
			break;

		case VIDEO_MODE_PAL:
			saa7185_write_block(client, init_pal,
					    sizeof(init_pal));
			break;

		case VIDEO_MODE_SECAM:
		default:
			return -EINVAL;

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

	case ENCODER_SET_INPUT:
	{
		int *iarg = arg;

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

		switch (*iarg) {

		case 0:
			/* Switch RTCE to 1 */
			saa7185_write(client, 0x61,
				      (encoder->reg[0x61] & 0xf7) | 0x08);
			saa7185_write(client, 0x6e, 0x01);
			break;

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

		default:
			return -EINVAL;

		}
	}
		break;

	case ENCODER_SET_OUTPUT:
	{
		int *iarg = arg;

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

	case ENCODER_ENABLE_OUTPUT:
	{
		int *iarg = arg;

		encoder->enable = !!*iarg;
		saa7185_write(client, 0x61,
			      (encoder->reg[0x61] & 0xbf) |
			      (encoder->enable ? 0x00 : 0x40));
	}
		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_SAA7185 >> 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_saa7185;

static int
saa7185_detect_client (struct i2c_adapter *adapter,
		       int                 address,
		       int                 kind)
{
	int i;
	struct i2c_client *client;
	struct saa7185 *encoder;

	dprintk(1,
		KERN_INFO
		"saa7185.c: detecting saa7185 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_saa7185;
	client->flags = I2C_CLIENT_ALLOW_USE;
	strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));

	encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL);
	if (encoder == NULL) {
		kfree(client);
		return -ENOMEM;
	}
	memset(encoder, 0, sizeof(struct saa7185));
	encoder->norm = VIDEO_MODE_NTSC;
	encoder->enable = 1;
	i2c_set_clientdata(client, encoder);

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

	i = saa7185_write_block(client, init_common, sizeof(init_common));
	if (i >= 0) {
		i = saa7185_write_block(client, init_ntsc,
					sizeof(init_ntsc));
	}
	if (i < 0) {
		dprintk(1, KERN_ERR "%s_attach: init error %d\n",
			I2C_NAME(client), i);
	} else {
		dprintk(1,
			KERN_INFO
			"%s_attach: chip version %d at address 0x%x\n",
			I2C_NAME(client), saa7185_read(client) >> 5,
			client->addr << 1);
	}

	return 0;
}

static int
saa7185_attach_adapter (struct i2c_adapter *adapter)
{
	dprintk(1,
		KERN_INFO
		"saa7185.c: starting probe for adapter %s (0x%x)\n",
		I2C_NAME(adapter), adapter->id);
	return i2c_probe(adapter, &addr_data, &saa7185_detect_client);
}

static int
saa7185_detach_client (struct i2c_client *client)
{
	struct saa7185 *encoder = i2c_get_clientdata(client);
	int err;

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

	saa7185_write(client, 0x61, (encoder->reg[0x61]) | 0x40);	/* SW: output off is active */
	//saa7185_write(client, 0x3a, (encoder->reg[0x3a]) | 0x80); /* SW: color bar */

	kfree(encoder);
	kfree(client);

	return 0;
}

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

static struct i2c_driver i2c_driver_saa7185 = {
	.owner = THIS_MODULE,
	.name = "saa7185",	/* name */

	.id = I2C_DRIVERID_SAA7185B,
	.flags = I2C_DF_NOTIFY,

	.attach_adapter = saa7185_attach_adapter,
	.detach_client = saa7185_detach_client,
	.command = saa7185_command,
};

static int __init
saa7185_init (void)
{
	return i2c_add_driver(&i2c_driver_saa7185);
}

static void __exit
saa7185_exit (void)
{
	i2c_del_driver(&i2c_driver_saa7185);
}

module_init(saa7185_init);
module_exit(saa7185_exit);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* saa7185 - Philips SAA7185B video encoder driver version 0.0.3
	3	*
	4	* Copyright (C) 1998 Dave Perks <dperks@ibm.net>
	5	*
	6	* Slight changes for video timing and attachment output by
	7	* Wolfgang Scherr <scherr@net4you.net>
	8	*
	9	* Changes by Ronald Bultje <rbultje@ronald.bitfreak.net>
	10	* - moved over to linux>=2.4.x i2c protocol (1/1/2003)
	11	*
	12	* This program is free software; you can redistribute it and/or modify
	13	* it under the terms of the GNU General Public License as published by
	14	* the Free Software Foundation; either version 2 of the License, or
	15	* (at your option) any later version.
	16	*
	17	* This program is distributed in the hope that it will be useful,
	18	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	20	* GNU General Public License for more details.
	21	*
	22	* You should have received a copy of the GNU General Public License
	23	* along with this program; if not, write to the Free Software
	24	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	25	*/
	26
	27	#include <linux/module.h>
	28	#include <linux/init.h>
	29	#include <linux/delay.h>
	30	#include <linux/errno.h>
	31	#include <linux/fs.h>
	32	#include <linux/kernel.h>
	33	#include <linux/major.h>
	34	#include <linux/slab.h>
	35	#include <linux/mm.h>
	36	#include <linux/pci.h>
	37	#include <linux/signal.h>
	38	#include <asm/io.h>
	39	#include <asm/pgtable.h>
	40	#include <asm/page.h>
	41	#include <linux/sched.h>
1da177e4 LT	42	#include <linux/types.h>
	43
	44	#include <linux/videodev.h>
	45	#include <asm/uaccess.h>
	46
	47	MODULE_DESCRIPTION("Philips SAA7185 video encoder driver");
	48	MODULE_AUTHOR("Dave Perks");
	49	MODULE_LICENSE("GPL");
	50
	51	#include <linux/i2c.h>
	52	#include <linux/i2c-dev.h>
	53
	54	#define I2C_NAME(s) (s)->name
	55
	56	#include <linux/video_encoder.h>
	57
	58	static int debug = 0;
	59	module_param(debug, int, 0);
	60	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	61
	62	#define dprintk(num, format, args...) \
	63	do { \
	64	if (debug >= num) \
	65	printk(format, ##args); \
	66	} while (0)
	67
	68	/* ----------------------------------------------------------------------- */
	69
	70	struct saa7185 {
	71	unsigned char reg[128];
	72
	73	int norm;
	74	int enable;
	75	int bright;
	76	int contrast;
	77	int hue;
	78	int sat;
	79	};
	80
	81	#define I2C_SAA7185 0x88
	82
	83	/* ----------------------------------------------------------------------- */
	84
	85	static inline int
	86	saa7185_read (struct i2c_client *client)
	87	{
	88	return i2c_smbus_read_byte(client);
	89	}
	90
	91	static int
	92	saa7185_write (struct i2c_client *client,
	93	u8 reg,
	94	u8 value)
	95	{
	96	struct saa7185 *encoder = i2c_get_clientdata(client);
	97
	98	dprintk(1, KERN_DEBUG "SAA7185: %02x set to %02x\n", reg, value);
	99	encoder->reg[reg] = value;
	100	return i2c_smbus_write_byte_data(client, reg, value);
	101	}
	102
	103	static int
	104	saa7185_write_block (struct i2c_client *client,
	105	const u8 *data,
106	unsigned int len)
107	{
108	int ret = -1;
109	u8 reg;
110
111	/* the adv7175 has an autoincrement function, use it if
112	* the adapter understands raw I2C */
113	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
114	/* do raw I2C, not smbus compatible */
115	struct saa7185 *encoder = i2c_get_clientdata(client);
116	struct i2c_msg msg;
117	u8 block_data[32];
118
119	msg.addr = client->addr;
120	msg.flags = 0;
121	while (len >= 2) {
122	msg.buf = (char *) block_data;
123	msg.len = 0;
124	block_data[msg.len++] = reg = data[0];
125	do {
126	block_data[msg.len++] =
127	encoder->reg[reg++] = data[1];
128	len -= 2;
129	data += 2;
130	} while (len >= 2 && data[0] == reg &&
131	msg.len < 32);
132	if ((ret = i2c_transfer(client->adapter,
133	&msg, 1)) < 0)
134	break;
135	}
136	} else {
137	/* do some slow I2C emulation kind of thing */
138	while (len >= 2) {
139	reg = *data++;
140	if ((ret = saa7185_write(client, reg,
141	*data++)) < 0)
142	break;
143	len -= 2;
144	}
145	}
146
147	return ret;
148	}
149
150	/* ----------------------------------------------------------------------- */
151
152	static const unsigned char init_common[] = {
153	0x3a, 0x0f, /* CBENB=0, V656=0, VY2C=1,
154	* YUV2C=1, MY2C=1, MUV2C=1 */
155
156	0x42, 0x6b, /* OVLY0=107 */
157	0x43, 0x00, /* OVLU0=0 white */
158	0x44, 0x00, /* OVLV0=0 */
159	0x45, 0x22, /* OVLY1=34 */
160	0x46, 0xac, /* OVLU1=172 yellow */
161	0x47, 0x0e, /* OVLV1=14 */
162	0x48, 0x03, /* OVLY2=3 */
163	0x49, 0x1d, /* OVLU2=29 cyan */
164	0x4a, 0xac, /* OVLV2=172 */
165	0x4b, 0xf0, /* OVLY3=240 */
166	0x4c, 0xc8, /* OVLU3=200 green */
167	0x4d, 0xb9, /* OVLV3=185 */
168	0x4e, 0xd4, /* OVLY4=212 */
169	0x4f, 0x38, /* OVLU4=56 magenta */
170	0x50, 0x47, /* OVLV4=71 */
171	0x51, 0xc1, /* OVLY5=193 */
172	0x52, 0xe3, /* OVLU5=227 red */
173	0x53, 0x54, /* OVLV5=84 */
174	0x54, 0xa3, /* OVLY6=163 */
175	0x55, 0x54, /* OVLU6=84 blue */
176	0x56, 0xf2, /* OVLV6=242 */
177	0x57, 0x90, /* OVLY7=144 */
178	0x58, 0x00, /* OVLU7=0 black */
179	0x59, 0x00, /* OVLV7=0 */
180
181	0x5a, 0x00, /* CHPS=0 */
182	0x5b, 0x76, /* GAINU=118 */
183	0x5c, 0xa5, /* GAINV=165 */
184	0x5d, 0x3c, /* BLCKL=60 */
185	0x5e, 0x3a, /* BLNNL=58 */
186	0x5f, 0x3a, /* CCRS=0, BLNVB=58 */
187	0x60, 0x00, /* NULL */
188
189	/* 0x61 - 0x66 set according to norm */
190
191	0x67, 0x00, /* 0 : caption 1st byte odd field */
192	0x68, 0x00, /* 0 : caption 2nd byte odd field */
193	0x69, 0x00, /* 0 : caption 1st byte even field */
194	0x6a, 0x00, /* 0 : caption 2nd byte even field */
195
196	0x6b, 0x91, /* MODIN=2, PCREF=0, SCCLN=17 */
197	0x6c, 0x20, /* SRCV1=0, TRCV2=1, ORCV1=0, PRCV1=0,
198	* CBLF=0, ORCV2=0, PRCV2=0 */
199	0x6d, 0x00, /* SRCM1=0, CCEN=0 */
200
201	0x6e, 0x0e, /* HTRIG=0x005, approx. centered, at
202	* least for PAL */
203	0x6f, 0x00, /* HTRIG upper bits */
204	0x70, 0x20, /* PHRES=0, SBLN=1, VTRIG=0 */
205
206	/* The following should not be needed */
207
208	0x71, 0x15, /* BMRQ=0x115 */
209	0x72, 0x90, /* EMRQ=0x690 */
210	0x73, 0x61, /* EMRQ=0x690, BMRQ=0x115 */
211	0x74, 0x00, /* NULL */
212	0x75, 0x00, /* NULL */
213	0x76, 0x00, /* NULL */
214	0x77, 0x15, /* BRCV=0x115 */
215	0x78, 0x90, /* ERCV=0x690 */
216	0x79, 0x61, /* ERCV=0x690, BRCV=0x115 */
217
218	/* Field length controls */
219
220	0x7a, 0x70, /* FLC=0 */
221
222	/* The following should not be needed if SBLN = 1 */
223
224	0x7b, 0x16, /* FAL=22 */
225	0x7c, 0x35, /* LAL=244 */
226	0x7d, 0x20, /* LAL=244, FAL=22 */
227	};
228
229	static const unsigned char init_pal[] = {
230	0x61, 0x1e, /* FISE=0, PAL=1, SCBW=1, RTCE=1,
231	* YGS=1, INPI=0, DOWN=0 */
232	0x62, 0xc8, /* DECTYP=1, BSTA=72 */
233	0x63, 0xcb, /* FSC0 */
234	0x64, 0x8a, /* FSC1 */
235	0x65, 0x09, /* FSC2 */
236	0x66, 0x2a, /* FSC3 */
237	};
238
239	static const unsigned char init_ntsc[] = {
240	0x61, 0x1d, /* FISE=1, PAL=0, SCBW=1, RTCE=1,
241	* YGS=1, INPI=0, DOWN=0 */
242	0x62, 0xe6, /* DECTYP=1, BSTA=102 */
243	0x63, 0x1f, /* FSC0 */
244	0x64, 0x7c, /* FSC1 */
245	0x65, 0xf0, /* FSC2 */
246	0x66, 0x21, /* FSC3 */
247	};
248
249	static int
250	saa7185_command (struct i2c_client *client,
251	unsigned int cmd,
252	void *arg)
253	{
254	struct saa7185 *encoder = i2c_get_clientdata(client);
255
256	switch (cmd) {
257
258	case 0:
259	saa7185_write_block(client, init_common,
260	sizeof(init_common));
261	switch (encoder->norm) {
262
263	case VIDEO_MODE_NTSC:
264	saa7185_write_block(client, init_ntsc,
265	sizeof(init_ntsc));
266	break;
267
268	case VIDEO_MODE_PAL:
269	saa7185_write_block(client, init_pal,
270	sizeof(init_pal));
271	break;
272	}
273
274	break;
275
276	case ENCODER_GET_CAPABILITIES:
277	{
278	struct video_encoder_capability *cap = arg;
279
280	cap->flags =
281	VIDEO_ENCODER_PAL \| VIDEO_ENCODER_NTSC \|
282	VIDEO_ENCODER_SECAM \| VIDEO_ENCODER_CCIR;
283	cap->inputs = 1;
284	cap->outputs = 1;
285	}
286	break;
287
288	case ENCODER_SET_NORM:
289	{
290	int *iarg = arg;
291
292	//saa7185_write_block(client, init_common, sizeof(init_common));
293
294	switch (*iarg) {
295
296	case VIDEO_MODE_NTSC:
297	saa7185_write_block(client, init_ntsc,
298	sizeof(init_ntsc));
299	break;
300
301	case VIDEO_MODE_PAL:
302	saa7185_write_block(client, init_pal,
303	sizeof(init_pal));
304	break;
305
306	case VIDEO_MODE_SECAM:
307	default:
308	return -EINVAL;
309
310	}
311	encoder->norm = *iarg;
312	}
313	break;
314
315	case ENCODER_SET_INPUT:
316	{
317	int *iarg = arg;
318
319	/* RJ: *iarg = 0: input is from SA7111
320	iarg = 1: input is from ZR36060 /
321
322	switch (*iarg) {
323
324	case 0:
325	/* Switch RTCE to 1 */
326	saa7185_write(client, 0x61,
327	(encoder->reg[0x61] & 0xf7) \| 0x08);
328	saa7185_write(client, 0x6e, 0x01);
329	break;
330
331	case 1:
332	/* Switch RTCE to 0 */
333	saa7185_write(client, 0x61,
334	(encoder->reg[0x61] & 0xf7) \| 0x00);
335	/* SW: a slight sync problem... */
336	saa7185_write(client, 0x6e, 0x00);
337	break;
338
339	default:
340	return -EINVAL;
341
342	}
343	}
344	break;
345
346	case ENCODER_SET_OUTPUT:
347	{
348	int *iarg = arg;
349
350	/* not much choice of outputs */
351	if (*iarg != 0) {
352	return -EINVAL;
353	}
354	}
355	break;
356
357	case ENCODER_ENABLE_OUTPUT:
358	{
359	int *iarg = arg;
360
361	encoder->enable = !!*iarg;
362	saa7185_write(client, 0x61,
363	(encoder->reg[0x61] & 0xbf) \|
364	(encoder->enable ? 0x00 : 0x40));
365	}
366	break;
367
368	default:
369	return -EINVAL;
370	}
371
372	return 0;
373	}
374
375	/* ----------------------------------------------------------------------- */
376
377	/*
378	* Generic i2c probe
379	* concerning the addresses: i2c wants 7 bit (without the r/w bit), so '>>1'
380	*/
381	static unsigned short normal_i2c[] = { I2C_SAA7185 >> 1, I2C_CLIENT_END };
1da177e4	382
68cc9d0b	383	static unsigned short ignore = I2C_CLIENT_END;
1da177e4 LT	384
	385	static struct i2c_client_address_data addr_data = {
	386	.normal_i2c = normal_i2c,
68cc9d0b JD	387	.probe = &ignore,
68cc9d0b JD	388	.ignore = &ignore,
1da177e4 LT	389	};
	390
	391	static struct i2c_driver i2c_driver_saa7185;
	392
	393	static int
	394	saa7185_detect_client (struct i2c_adapter *adapter,
	395	int address,
	396	int kind)
	397	{
	398	int i;
	399	struct i2c_client *client;
	400	struct saa7185 *encoder;
	401
	402	dprintk(1,
	403	KERN_INFO
	404	"saa7185.c: detecting saa7185 client on address 0x%x\n",
	405	address << 1);
	406
	407	/* Check if the adapter supports the needed features */
	408	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
	409	return 0;
	410
	411	client = kmalloc(sizeof(struct i2c_client), GFP_KERNEL);
	412	if (client == 0)
	413	return -ENOMEM;
	414	memset(client, 0, sizeof(struct i2c_client));
	415	client->addr = address;
	416	client->adapter = adapter;
	417	client->driver = &i2c_driver_saa7185;
	418	client->flags = I2C_CLIENT_ALLOW_USE;
	419	strlcpy(I2C_NAME(client), "saa7185", sizeof(I2C_NAME(client)));
	420
	421	encoder = kmalloc(sizeof(struct saa7185), GFP_KERNEL);
	422	if (encoder == NULL) {
	423	kfree(client);
	424	return -ENOMEM;
	425	}
	426	memset(encoder, 0, sizeof(struct saa7185));
	427	encoder->norm = VIDEO_MODE_NTSC;
	428	encoder->enable = 1;
	429	i2c_set_clientdata(client, encoder);
	430
	431	i = i2c_attach_client(client);
	432	if (i) {
	433	kfree(client);
	434	kfree(encoder);
	435	return i;
	436	}
	437
	438	i = saa7185_write_block(client, init_common, sizeof(init_common));
	439	if (i >= 0) {
	440	i = saa7185_write_block(client, init_ntsc,
	441	sizeof(init_ntsc));
	442	}
	443	if (i < 0) {
	444	dprintk(1, KERN_ERR "%s_attach: init error %d\n",
	445	I2C_NAME(client), i);
	446	} else {
	447	dprintk(1,
	448	KERN_INFO
	449	"%s_attach: chip version %d at address 0x%x\n",
	450	I2C_NAME(client), saa7185_read(client) >> 5,
	451	client->addr << 1);
	452	}
453
454	return 0;
455	}
456
457	static int
458	saa7185_attach_adapter (struct i2c_adapter *adapter)
459	{
460	dprintk(1,
461	KERN_INFO
462	"saa7185.c: starting probe for adapter %s (0x%x)\n",
463	I2C_NAME(adapter), adapter->id);
464	return i2c_probe(adapter, &addr_data, &saa7185_detect_client);
465	}
466
467	static int
468	saa7185_detach_client (struct i2c_client *client)
469	{
470	struct saa7185 *encoder = i2c_get_clientdata(client);
471	int err;
472
473	err = i2c_detach_client(client);
474	if (err) {
475	return err;
476	}
477
478	saa7185_write(client, 0x61, (encoder->reg[0x61]) \| 0x40); /* SW: output off is active */
479	//saa7185_write(client, 0x3a, (encoder->reg[0x3a]) \| 0x80); /* SW: color bar */
480
481	kfree(encoder);
482	kfree(client);
483
484	return 0;
485	}
486
487	/* ----------------------------------------------------------------------- */
488
489	static struct i2c_driver i2c_driver_saa7185 = {
490	.owner = THIS_MODULE,
491	.name = "saa7185", /* name */
492
493	.id = I2C_DRIVERID_SAA7185B,
494	.flags = I2C_DF_NOTIFY,
495
496	.attach_adapter = saa7185_attach_adapter,
497	.detach_client = saa7185_detach_client,
498	.command = saa7185_command,
499	};
500
501	static int __init
502	saa7185_init (void)
503	{
504	return i2c_add_driver(&i2c_driver_saa7185);
505	}
506
507	static void __exit
508	saa7185_exit (void)
509	{
510	i2c_del_driver(&i2c_driver_saa7185);
511	}
512
513	module_init(saa7185_init);
514	module_exit(saa7185_exit);