[deliverable/linux.git] / drivers / media / video / vpx3220.c

/*
 * vpx3220a, vpx3216b & vpx3214c video decoder driver version 0.0.1
 *
 * Copyright (C) 2001 Laurent Pinchart <lpinchart@freegates.be>
 *
 * 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/types.h>
#include <asm/uaccess.h>
#include <linux/i2c.h>
#include <media/v4l2-common.h>
#include <media/v4l2-i2c-drv-legacy.h>
#include <linux/videodev.h>
#include <linux/video_decoder.h>

MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver");
MODULE_AUTHOR("Laurent Pinchart");
MODULE_LICENSE("GPL");

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

#define VPX_TIMEOUT_COUNT  10

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

struct vpx3220 {
	unsigned char reg[255];

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

static char *inputs[] = { "internal", "composite", "svideo" };

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

static inline int vpx3220_write(struct i2c_client *client, u8 reg, u8 value)
{
	struct vpx3220 *decoder = i2c_get_clientdata(client);

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

static inline int vpx3220_read(struct i2c_client *client, u8 reg)
{
	return i2c_smbus_read_byte_data(client, reg);
}

static int vpx3220_fp_status(struct i2c_client *client)
{
	unsigned char status;
	unsigned int i;

	for (i = 0; i < VPX_TIMEOUT_COUNT; i++) {
		status = vpx3220_read(client, 0x29);

		if (!(status & 4))
			return 0;

		udelay(10);

		if (need_resched())
			cond_resched();
	}

	return -1;
}

static int vpx3220_fp_write(struct i2c_client *client, u8 fpaddr, u16 data)
{
	/* Write the 16-bit address to the FPWR register */
	if (i2c_smbus_write_word_data(client, 0x27, swab16(fpaddr)) == -1) {
		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
		return -1;
	}

	if (vpx3220_fp_status(client) < 0)
		return -1;

	/* Write the 16-bit data to the FPDAT register */
	if (i2c_smbus_write_word_data(client, 0x28, swab16(data)) == -1) {
		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
		return -1;
	}

	return 0;
}

static u16 vpx3220_fp_read(struct i2c_client *client, u16 fpaddr)
{
	s16 data;

	/* Write the 16-bit address to the FPRD register */
	if (i2c_smbus_write_word_data(client, 0x26, swab16(fpaddr)) == -1) {
		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
		return -1;
	}

	if (vpx3220_fp_status(client) < 0)
		return -1;

	/* Read the 16-bit data from the FPDAT register */
	data = i2c_smbus_read_word_data(client, 0x28);
	if (data == -1) {
		v4l_dbg(1, debug, client, "%s: failed\n", __func__);
		return -1;
	}

	return swab16(data);
}

static int vpx3220_write_block(struct i2c_client *client, const u8 *data, unsigned int len)
{
	u8 reg;
	int ret = -1;

	while (len >= 2) {
		reg = *data++;
		ret = vpx3220_write(client, reg, *data++);
		if (ret < 0)
			break;
		len -= 2;
	}

	return ret;
}

static int vpx3220_write_fp_block(struct i2c_client *client,
		const u16 *data, unsigned int len)
{
	u8 reg;
	int ret = 0;

	while (len > 1) {
		reg = *data++;
		ret |= vpx3220_fp_write(client, reg, *data++);
		len -= 2;
	}

	return ret;
}

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

static const unsigned short init_ntsc[] = {
	0x1c, 0x00,		/* NTSC tint angle */
	0x88, 17,		/* Window 1 vertical */
	0x89, 240,		/* Vertical lines in */
	0x8a, 240,		/* Vertical lines out */
	0x8b, 000,		/* Horizontal begin */
	0x8c, 640,		/* Horizontal length */
	0x8d, 640,		/* Number of pixels */
	0x8f, 0xc00,		/* Disable window 2 */
	0xf0, 0x73,		/* 13.5 MHz transport, Forced
				 * mode, latch windows */
	0xf2, 0x13,		/* NTSC M, composite input */
	0xe7, 0x1e1,		/* Enable vertical standard
				 * locking @ 240 lines */
};

static const unsigned short init_pal[] = {
	0x88, 23,		/* Window 1 vertical begin */
	0x89, 288,		/* Vertical lines in (16 lines
				 * skipped by the VFE) */
	0x8a, 288,		/* Vertical lines out (16 lines
				 * skipped by the VFE) */
	0x8b, 16,		/* Horizontal begin */
	0x8c, 768,		/* Horizontal length */
	0x8d, 784, 		/* Number of pixels
				 * Must be >= Horizontal begin + Horizontal length */
	0x8f, 0xc00,		/* Disable window 2 */
	0xf0, 0x77,		/* 13.5 MHz transport, Forced
				 * mode, latch windows */
	0xf2, 0x3d1,		/* PAL B,G,H,I, composite input */
	0xe7, 0x241,		/* PAL/SECAM set to 288 lines */
};

static const unsigned short init_secam[] = {
	0x88, 23,		/* Window 1 vertical begin */
	0x89, 288,		/* Vertical lines in (16 lines
				 * skipped by the VFE) */
	0x8a, 288,		/* Vertical lines out (16 lines
				 * skipped by the VFE) */
	0x8b, 16,		/* Horizontal begin */
	0x8c, 768,		/* Horizontal length */
	0x8d, 784,		/* Number of pixels
				 * Must be >= Horizontal begin + Horizontal length */
	0x8f, 0xc00,		/* Disable window 2 */
	0xf0, 0x77,		/* 13.5 MHz transport, Forced
				 * mode, latch windows */
	0xf2, 0x3d5,		/* SECAM, composite input */
	0xe7, 0x241,		/* PAL/SECAM set to 288 lines */
};

static const unsigned char init_common[] = {
	0xf2, 0x00,		/* Disable all outputs */
	0x33, 0x0d,		/* Luma : VIN2, Chroma : CIN
				 * (clamp off) */
	0xd8, 0xa8,		/* HREF/VREF active high, VREF
				 * pulse = 2, Odd/Even flag */
	0x20, 0x03,		/* IF compensation 0dB/oct */
	0xe0, 0xff,		/* Open up all comparators */
	0xe1, 0x00,
	0xe2, 0x7f,
	0xe3, 0x80,
	0xe4, 0x7f,
	0xe5, 0x80,
	0xe6, 0x00,		/* Brightness set to 0 */
	0xe7, 0xe0,		/* Contrast to 1.0, noise shaping
				 * 10 to 8 2-bit error diffusion */
	0xe8, 0xf8,		/* YUV422, CbCr binary offset,
				 * ... (p.32) */
	0xea, 0x18,		/* LLC2 connected, output FIFO
				 * reset with VACTintern */
	0xf0, 0x8a,		/* Half full level to 10, bus
				 * shuffler [7:0, 23:16, 15:8] */
	0xf1, 0x18,		/* Single clock, sync mode, no
				 * FE delay, no HLEN counter */
	0xf8, 0x12,		/* Port A, PIXCLK, HF# & FE#
				 * strength to 2 */
	0xf9, 0x24,		/* Port B, HREF, VREF, PREF &
				 * ALPHA strength to 4 */
};

static const unsigned short init_fp[] = {
	0x59, 0,
	0xa0, 2070,		/* ACC reference */
	0xa3, 0,
	0xa4, 0,
	0xa8, 30,
	0xb2, 768,
	0xbe, 27,
	0x58, 0,
	0x26, 0,
	0x4b, 0x298,		/* PLL gain */
};

static void vpx3220_dump_i2c(struct i2c_client *client)
{
	int len = sizeof(init_common);
	const unsigned char *data = init_common;

	while (len > 1) {
		v4l_dbg(1, debug, client, "i2c reg 0x%02x data 0x%02x\n",
			*data, vpx3220_read(client, *data));
		data += 2;
		len -= 2;
	}
}

static int vpx3220_command(struct i2c_client *client, unsigned cmd, void *arg)
{
	struct vpx3220 *decoder = i2c_get_clientdata(client);

	switch (cmd) {
	case 0:
	{
		vpx3220_write_block(client, init_common,
				    sizeof(init_common));
		vpx3220_write_fp_block(client, init_fp,
				       sizeof(init_fp) >> 1);
		switch (decoder->norm) {
		case VIDEO_MODE_NTSC:
			vpx3220_write_fp_block(client, init_ntsc,
					       sizeof(init_ntsc) >> 1);
			break;

		case VIDEO_MODE_PAL:
			vpx3220_write_fp_block(client, init_pal,
					       sizeof(init_pal) >> 1);
			break;
		case VIDEO_MODE_SECAM:
			vpx3220_write_fp_block(client, init_secam,
					       sizeof(init_secam) >> 1);
			break;
		default:
			vpx3220_write_fp_block(client, init_pal,
					       sizeof(init_pal) >> 1);
			break;
		}
		break;
	}

	case DECODER_DUMP:
	{
		vpx3220_dump_i2c(client);
		break;
	}

	case DECODER_GET_CAPABILITIES:
	{
		struct video_decoder_capability *cap = arg;

		v4l_dbg(1, debug, client, "DECODER_GET_CAPABILITIES\n");

		cap->flags = VIDEO_DECODER_PAL |
			     VIDEO_DECODER_NTSC |
			     VIDEO_DECODER_SECAM |
			     VIDEO_DECODER_AUTO |
			     VIDEO_DECODER_CCIR;
		cap->inputs = 3;
		cap->outputs = 1;
		break;
	}

	case DECODER_GET_STATUS:
	{
		int res = 0, status;

		v4l_dbg(1, debug, client, "DECODER_GET_STATUS\n");

		status = vpx3220_fp_read(client, 0x0f3);

		v4l_dbg(1, debug, client, "status: 0x%04x\n", status);

		if (status < 0)
			return status;

		if ((status & 0x20) == 0) {
			res |= DECODER_STATUS_GOOD | DECODER_STATUS_COLOR;

			switch (status & 0x18) {
			case 0x00:
			case 0x10:
			case 0x14:
			case 0x18:
				res |= DECODER_STATUS_PAL;
				break;

			case 0x08:
				res |= DECODER_STATUS_SECAM;
				break;

			case 0x04:
			case 0x0c:
			case 0x1c:
				res |= DECODER_STATUS_NTSC;
				break;
			}
		}

		*(int *) arg = res;
		break;
	}

	case DECODER_SET_NORM:
	{
		int *iarg = arg, data;
		int temp_input;

		/* Here we back up the input selection because it gets
		   overwritten when we fill the registers with the
		   choosen video norm */
		temp_input = vpx3220_fp_read(client, 0xf2);

		v4l_dbg(1, debug, client, "DECODER_SET_NORM %d\n", *iarg);
		switch (*iarg) {
		case VIDEO_MODE_NTSC:
			vpx3220_write_fp_block(client, init_ntsc,
					       sizeof(init_ntsc) >> 1);
			v4l_dbg(1, debug, client, "norm switched to NTSC\n");
			break;

		case VIDEO_MODE_PAL:
			vpx3220_write_fp_block(client, init_pal,
					       sizeof(init_pal) >> 1);
			v4l_dbg(1, debug, client, "norm switched to PAL\n");
			break;

		case VIDEO_MODE_SECAM:
			vpx3220_write_fp_block(client, init_secam,
					       sizeof(init_secam) >> 1);
			v4l_dbg(1, debug, client, "norm switched to SECAM\n");
			break;

		case VIDEO_MODE_AUTO:
			/* FIXME This is only preliminary support */
			data = vpx3220_fp_read(client, 0xf2) & 0x20;
			vpx3220_fp_write(client, 0xf2, 0x00c0 | data);
			v4l_dbg(1, debug, client, "norm switched to AUTO\n");
			break;

		default:
			return -EINVAL;
		}
		decoder->norm = *iarg;

		/* And here we set the backed up video input again */
		vpx3220_fp_write(client, 0xf2, temp_input | 0x0010);
		udelay(10);
		break;
	}

	case DECODER_SET_INPUT:
	{
		int *iarg = arg, data;

		/* RJ:  *iarg = 0: ST8 (PCTV) input
		 *iarg = 1: COMPOSITE  input
		 *iarg = 2: SVHS       input  */

		const int input[3][2] = {
			{0x0c, 0},
			{0x0d, 0},
			{0x0e, 1}
		};

		if (*iarg < 0 || *iarg > 2)
			return -EINVAL;

		v4l_dbg(1, debug, client, "input switched to %s\n", inputs[*iarg]);

		vpx3220_write(client, 0x33, input[*iarg][0]);

		data = vpx3220_fp_read(client, 0xf2) & ~(0x0020);
		if (data < 0)
			return data;
		/* 0x0010 is required to latch the setting */
		vpx3220_fp_write(client, 0xf2,
				 data | (input[*iarg][1] << 5) | 0x0010);

		udelay(10);
		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;

		v4l_dbg(1, debug, client, "DECODER_ENABLE_OUTPUT %d\n", *iarg);

		vpx3220_write(client, 0xf2, (*iarg ? 0x1b : 0x00));
		break;
	}

	case DECODER_SET_PICTURE:
	{
		struct video_picture *pic = arg;

		if (decoder->bright != pic->brightness) {
			/* We want -128 to 128 we get 0-65535 */
			decoder->bright = pic->brightness;
			vpx3220_write(client, 0xe6,
				      (decoder->bright - 32768) >> 8);
		}
		if (decoder->contrast != pic->contrast) {
			/* We want 0 to 64 we get 0-65535 */
			/* Bit 7 and 8 is for noise shaping */
			decoder->contrast = pic->contrast;
			vpx3220_write(client, 0xe7,
				      (decoder->contrast >> 10) + 192);
		}
		if (decoder->sat != pic->colour) {
			/* We want 0 to 4096 we get 0-65535 */
			decoder->sat = pic->colour;
			vpx3220_fp_write(client, 0xa0,
					 decoder->sat >> 4);
		}
		if (decoder->hue != pic->hue) {
			/* We want -512 to 512 we get 0-65535 */
			decoder->hue = pic->hue;
			vpx3220_fp_write(client, 0x1c,
					 ((decoder->hue - 32768) >> 6) & 0xFFF);
		}
		break;
	}

	default:
		return -EINVAL;
	}

	return 0;
}

static int vpx3220_init_client(struct i2c_client *client)
{
	vpx3220_write_block(client, init_common, sizeof(init_common));
	vpx3220_write_fp_block(client, init_fp, sizeof(init_fp) >> 1);
	/* Default to PAL */
	vpx3220_write_fp_block(client, init_pal, sizeof(init_pal) >> 1);

	return 0;
}

/* -----------------------------------------------------------------------
 * Client management code
 */

static unsigned short normal_i2c[] = { 0x86 >> 1, 0x8e >> 1, I2C_CLIENT_END };

I2C_CLIENT_INSMOD;

static int vpx3220_probe(struct i2c_client *client,
			const struct i2c_device_id *id)
{
	struct vpx3220 *decoder;
	const char *name = NULL;
	u8 ver;
	u16 pn;

	/* Check if the adapter supports the needed features */
	if (!i2c_check_functionality(client->adapter,
		I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA))
		return -ENODEV;

	decoder = kzalloc(sizeof(struct vpx3220), GFP_KERNEL);
	if (decoder == NULL)
		return -ENOMEM;
	decoder->norm = VIDEO_MODE_PAL;
	decoder->input = 0;
	decoder->enable = 1;
	decoder->bright = 32768;
	decoder->contrast = 32768;
	decoder->hue = 32768;
	decoder->sat = 32768;
	i2c_set_clientdata(client, decoder);

	ver = i2c_smbus_read_byte_data(client, 0x00);
	pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) +
		i2c_smbus_read_byte_data(client, 0x01);
	if (ver == 0xec) {
		switch (pn) {
		case 0x4680:
			name = "vpx3220a";
			break;
		case 0x4260:
			name = "vpx3216b";
			break;
		case 0x4280:
			name = "vpx3214c";
			break;
		}
	}
	if (name)
		v4l_info(client, "%s found @ 0x%x (%s)\n", name,
			client->addr << 1, client->adapter->name);
	else
		v4l_info(client, "chip (%02x:%04x) found @ 0x%x (%s)\n",
			ver, pn, client->addr << 1, client->adapter->name);

	vpx3220_init_client(client);
	return 0;
}

static int vpx3220_remove(struct i2c_client *client)
{
	kfree(i2c_get_clientdata(client));
	return 0;
}

static const struct i2c_device_id vpx3220_id[] = {
	{ "vpx3220a", 0 },
	{ "vpx3216b", 0 },
	{ "vpx3214c", 0 },
	{ }
};
MODULE_DEVICE_TABLE(i2c, vpx3220_id);

static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	.name = "vpx3220",
	.driverid = I2C_DRIVERID_VPX3220,
	.command = vpx3220_command,
	.probe = vpx3220_probe,
	.remove = vpx3220_remove,
	.id_table = vpx3220_id,
};
Commit	Line	Data
d56410e0	1	/*
1da177e4 LT	2	* vpx3220a, vpx3216b & vpx3214c video decoder driver version 0.0.1
	3	*
	4	* Copyright (C) 2001 Laurent Pinchart <lpinchart@freegates.be>
	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License as published by
	8	* the Free Software Foundation; either version 2 of the License, or
	9	* (at your option) any later version.
	10	*
	11	* This program is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	* GNU General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU General Public License
	17	* along with this program; if not, write to the Free Software
	18	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/init.h>
	23	#include <linux/delay.h>
	24	#include <linux/types.h>
1da177e4	25	#include <asm/uaccess.h>
1da177e4	26	#include <linux/i2c.h>
5e87efa3	27	#include <media/v4l2-common.h>
23848b65 HV	28	#include <media/v4l2-i2c-drv-legacy.h>
23848b65 HV	29	#include <linux/videodev.h>
1da177e4 LT	30	#include <linux/video_decoder.h>
1da177e4 LT	31
23848b65 HV	32	MODULE_DESCRIPTION("vpx3220a/vpx3216b/vpx3214c video decoder driver");
	33	MODULE_AUTHOR("Laurent Pinchart");
	34	MODULE_LICENSE("GPL");
1da177e4	35
ff699e6b	36	static int debug;
1da177e4 LT	37	module_param(debug, int, 0);
	38	MODULE_PARM_DESC(debug, "Debug level (0-1)");
	39
1da177e4 LT	40	#define VPX_TIMEOUT_COUNT 10
	41
	42	/* ----------------------------------------------------------------------- */
	43
	44	struct vpx3220 {
	45	unsigned char reg[255];
	46
	47	int norm;
	48	int input;
	49	int enable;
	50	int bright;
	51	int contrast;
	52	int hue;
	53	int sat;
	54	};
	55
	56	static char *inputs[] = { "internal", "composite", "svideo" };
	57
	58	/* ----------------------------------------------------------------------- */
23848b65 HV	59
23848b65 HV	60	static inline int vpx3220_write(struct i2c_client *client, u8 reg, u8 value)
1da177e4 LT	61	{
	62	struct vpx3220 *decoder = i2c_get_clientdata(client);
	63
	64	decoder->reg[reg] = value;
	65	return i2c_smbus_write_byte_data(client, reg, value);
	66	}
	67
23848b65	68	static inline int vpx3220_read(struct i2c_client *client, u8 reg)
1da177e4 LT	69	{
	70	return i2c_smbus_read_byte_data(client, reg);
	71	}
	72
23848b65	73	static int vpx3220_fp_status(struct i2c_client *client)
1da177e4 LT	74	{
	75	unsigned char status;
	76	unsigned int i;
	77
	78	for (i = 0; i < VPX_TIMEOUT_COUNT; i++) {
	79	status = vpx3220_read(client, 0x29);
	80
	81	if (!(status & 4))
	82	return 0;
	83
	84	udelay(10);
	85
	86	if (need_resched())
	87	cond_resched();
	88	}
	89
	90	return -1;
	91	}
	92
23848b65	93	static int vpx3220_fp_write(struct i2c_client *client, u8 fpaddr, u16 data)
1da177e4 LT	94	{
	95	/* Write the 16-bit address to the FPWR register */
	96	if (i2c_smbus_write_word_data(client, 0x27, swab16(fpaddr)) == -1) {
23848b65	97	v4l_dbg(1, debug, client, "%s: failed\n", __func__);
1da177e4 LT	98	return -1;
	99	}
	100
	101	if (vpx3220_fp_status(client) < 0)
	102	return -1;
	103
	104	/* Write the 16-bit data to the FPDAT register */
	105	if (i2c_smbus_write_word_data(client, 0x28, swab16(data)) == -1) {
23848b65	106	v4l_dbg(1, debug, client, "%s: failed\n", __func__);
1da177e4 LT	107	return -1;
	108	}
	109
	110	return 0;
	111	}
	112
23848b65	113	static u16 vpx3220_fp_read(struct i2c_client *client, u16 fpaddr)
1da177e4 LT	114	{
	115	s16 data;
	116
	117	/* Write the 16-bit address to the FPRD register */
	118	if (i2c_smbus_write_word_data(client, 0x26, swab16(fpaddr)) == -1) {
23848b65	119	v4l_dbg(1, debug, client, "%s: failed\n", __func__);
1da177e4 LT	120	return -1;
	121	}
	122
	123	if (vpx3220_fp_status(client) < 0)
	124	return -1;
	125
	126	/* Read the 16-bit data from the FPDAT register */
	127	data = i2c_smbus_read_word_data(client, 0x28);
	128	if (data == -1) {
23848b65	129	v4l_dbg(1, debug, client, "%s: failed\n", __func__);
1da177e4 LT	130	return -1;
	131	}
	132
	133	return swab16(data);
	134	}
	135
23848b65	136	static int vpx3220_write_block(struct i2c_client client, const u8 data, unsigned int len)
1da177e4 LT	137	{
	138	u8 reg;
	139	int ret = -1;
	140
	141	while (len >= 2) {
	142	reg = *data++;
23848b65 HV	143	ret = vpx3220_write(client, reg, *data++);
23848b65 HV	144	if (ret < 0)
1da177e4 LT	145	break;
	146	len -= 2;
	147	}
	148
	149	return ret;
	150	}
	151
23848b65 HV	152	static int vpx3220_write_fp_block(struct i2c_client *client,
23848b65 HV	153	const u16 *data, unsigned int len)
1da177e4 LT	154	{
	155	u8 reg;
	156	int ret = 0;
	157
	158	while (len > 1) {
	159	reg = *data++;
	160	ret \|= vpx3220_fp_write(client, reg, *data++);
	161	len -= 2;
	162	}
	163
	164	return ret;
	165	}
	166
	167	/* ---------------------------------------------------------------------- */
	168
	169	static const unsigned short init_ntsc[] = {
	170	0x1c, 0x00, /* NTSC tint angle */
	171	0x88, 17, /* Window 1 vertical */
	172	0x89, 240, /* Vertical lines in */
	173	0x8a, 240, /* Vertical lines out */
	174	0x8b, 000, /* Horizontal begin */
	175	0x8c, 640, /* Horizontal length */
	176	0x8d, 640, /* Number of pixels */
	177	0x8f, 0xc00, /* Disable window 2 */
9b3acc21	178	0xf0, 0x73, /* 13.5 MHz transport, Forced
1da177e4 LT	179	* mode, latch windows */
	180	0xf2, 0x13, /* NTSC M, composite input */
	181	0xe7, 0x1e1, /* Enable vertical standard
	182	* locking @ 240 lines */
	183	};
	184
	185	static const unsigned short init_pal[] = {
	186	0x88, 23, /* Window 1 vertical begin */
9b3acc21	187	0x89, 288, /* Vertical lines in (16 lines
1da177e4	188	* skipped by the VFE) */
9b3acc21	189	0x8a, 288, /* Vertical lines out (16 lines
1da177e4 LT	190	* skipped by the VFE) */
	191	0x8b, 16, /* Horizontal begin */
	192	0x8c, 768, /* Horizontal length */
	193	0x8d, 784, /* Number of pixels
	194	* Must be >= Horizontal begin + Horizontal length */
	195	0x8f, 0xc00, /* Disable window 2 */
9b3acc21	196	0xf0, 0x77, /* 13.5 MHz transport, Forced
1da177e4 LT	197	* mode, latch windows */
1da177e4 LT	198	0xf2, 0x3d1, /* PAL B,G,H,I, composite input */
9b3acc21	199	0xe7, 0x241, /* PAL/SECAM set to 288 lines */
1da177e4 LT	200	};
	201
	202	static const unsigned short init_secam[] = {
9b3acc21 RB	203	0x88, 23, /* Window 1 vertical begin */
9b3acc21 RB	204	0x89, 288, /* Vertical lines in (16 lines
1da177e4	205	* skipped by the VFE) */
9b3acc21	206	0x8a, 288, /* Vertical lines out (16 lines
1da177e4 LT	207	* skipped by the VFE) */
	208	0x8b, 16, /* Horizontal begin */
	209	0x8c, 768, /* Horizontal length */
	210	0x8d, 784, /* Number of pixels
	211	* Must be >= Horizontal begin + Horizontal length */
	212	0x8f, 0xc00, /* Disable window 2 */
9b3acc21	213	0xf0, 0x77, /* 13.5 MHz transport, Forced
1da177e4 LT	214	* mode, latch windows */
1da177e4 LT	215	0xf2, 0x3d5, /* SECAM, composite input */
9b3acc21	216	0xe7, 0x241, /* PAL/SECAM set to 288 lines */
1da177e4 LT	217	};
	218
	219	static const unsigned char init_common[] = {
	220	0xf2, 0x00, /* Disable all outputs */
	221	0x33, 0x0d, /* Luma : VIN2, Chroma : CIN
	222	* (clamp off) */
	223	0xd8, 0xa8, /* HREF/VREF active high, VREF
	224	* pulse = 2, Odd/Even flag */
	225	0x20, 0x03, /* IF compensation 0dB/oct */
	226	0xe0, 0xff, /* Open up all comparators */
	227	0xe1, 0x00,
	228	0xe2, 0x7f,
	229	0xe3, 0x80,
	230	0xe4, 0x7f,
	231	0xe5, 0x80,
	232	0xe6, 0x00, /* Brightness set to 0 */
	233	0xe7, 0xe0, /* Contrast to 1.0, noise shaping
	234	* 10 to 8 2-bit error diffusion */
	235	0xe8, 0xf8, /* YUV422, CbCr binary offset,
	236	* ... (p.32) */
	237	0xea, 0x18, /* LLC2 connected, output FIFO
	238	* reset with VACTintern */
	239	0xf0, 0x8a, /* Half full level to 10, bus
	240	* shuffler [7:0, 23:16, 15:8] */
	241	0xf1, 0x18, /* Single clock, sync mode, no
	242	* FE delay, no HLEN counter */
	243	0xf8, 0x12, /* Port A, PIXCLK, HF# & FE#
	244	* strength to 2 */
	245	0xf9, 0x24, /* Port B, HREF, VREF, PREF &
	246	* ALPHA strength to 4 */
	247	};
	248
	249	static const unsigned short init_fp[] = {
	250	0x59, 0,
	251	0xa0, 2070, /* ACC reference */
	252	0xa3, 0,
	253	0xa4, 0,
	254	0xa8, 30,
	255	0xb2, 768,
	256	0xbe, 27,
	257	0x58, 0,
	258	0x26, 0,
	259	0x4b, 0x298, /* PLL gain */
	260	};
	261
23848b65	262	static void vpx3220_dump_i2c(struct i2c_client *client)
1da177e4 LT	263	{
	264	int len = sizeof(init_common);
	265	const unsigned char *data = init_common;
	266
	267	while (len > 1) {
23848b65	268	v4l_dbg(1, debug, client, "i2c reg 0x%02x data 0x%02x\n",
1da177e4 LT	269	data, vpx3220_read(client, data));
	270	data += 2;
	271	len -= 2;
	272	}
	273	}
	274
23848b65	275	static int vpx3220_command(struct i2c_client client, unsigned cmd, void arg)
1da177e4 LT	276	{
	277	struct vpx3220 *decoder = i2c_get_clientdata(client);
	278
	279	switch (cmd) {
	280	case 0:
	281	{
	282	vpx3220_write_block(client, init_common,
	283	sizeof(init_common));
	284	vpx3220_write_fp_block(client, init_fp,
	285	sizeof(init_fp) >> 1);
	286	switch (decoder->norm) {
1da177e4 LT	287	case VIDEO_MODE_NTSC:
	288	vpx3220_write_fp_block(client, init_ntsc,
	289	sizeof(init_ntsc) >> 1);
	290	break;
	291
	292	case VIDEO_MODE_PAL:
	293	vpx3220_write_fp_block(client, init_pal,
d56410e0	294	sizeof(init_pal) >> 1);
1da177e4 LT	295	break;
	296	case VIDEO_MODE_SECAM:
	297	vpx3220_write_fp_block(client, init_secam,
	298	sizeof(init_secam) >> 1);
	299	break;
	300	default:
	301	vpx3220_write_fp_block(client, init_pal,
d56410e0	302	sizeof(init_pal) >> 1);
1da177e4 LT	303	break;
1da177e4 LT	304	}
1da177e4	305	break;
23848b65	306	}
1da177e4 LT	307
	308	case DECODER_DUMP:
	309	{
	310	vpx3220_dump_i2c(client);
1da177e4	311	break;
23848b65	312	}
1da177e4 LT	313
	314	case DECODER_GET_CAPABILITIES:
	315	{
	316	struct video_decoder_capability *cap = arg;
	317
23848b65	318	v4l_dbg(1, debug, client, "DECODER_GET_CAPABILITIES\n");
1da177e4 LT	319
	320	cap->flags = VIDEO_DECODER_PAL \|
	321	VIDEO_DECODER_NTSC \|
	322	VIDEO_DECODER_SECAM \|
	323	VIDEO_DECODER_AUTO \|
	324	VIDEO_DECODER_CCIR;
	325	cap->inputs = 3;
	326	cap->outputs = 1;
1da177e4	327	break;
23848b65	328	}
1da177e4 LT	329
	330	case DECODER_GET_STATUS:
	331	{
	332	int res = 0, status;
	333
23848b65	334	v4l_dbg(1, debug, client, "DECODER_GET_STATUS\n");
1da177e4 LT	335
	336	status = vpx3220_fp_read(client, 0x0f3);
	337
23848b65	338	v4l_dbg(1, debug, client, "status: 0x%04x\n", status);
1da177e4 LT	339
	340	if (status < 0)
	341	return status;
	342
	343	if ((status & 0x20) == 0) {
	344	res \|= DECODER_STATUS_GOOD \| DECODER_STATUS_COLOR;
	345
	346	switch (status & 0x18) {
1da177e4 LT	347	case 0x00:
	348	case 0x10:
	349	case 0x14:
	350	case 0x18:
	351	res \|= DECODER_STATUS_PAL;
	352	break;
	353
	354	case 0x08:
	355	res \|= DECODER_STATUS_SECAM;
	356	break;
	357
	358	case 0x04:
	359	case 0x0c:
	360	case 0x1c:
	361	res \|= DECODER_STATUS_NTSC;
	362	break;
	363	}
	364	}
	365
	366	(int ) arg = res;
1da177e4	367	break;
23848b65	368	}
1da177e4 LT	369
	370	case DECODER_SET_NORM:
	371	{
	372	int *iarg = arg, data;
de21eb63 RB	373	int temp_input;
	374
	375	/* Here we back up the input selection because it gets
	376	overwritten when we fill the registers with the
d56410e0	377	choosen video norm */
de21eb63	378	temp_input = vpx3220_fp_read(client, 0xf2);
1da177e4	379
23848b65	380	v4l_dbg(1, debug, client, "DECODER_SET_NORM %d\n", *iarg);
1da177e4	381	switch (*iarg) {
1da177e4 LT	382	case VIDEO_MODE_NTSC:
	383	vpx3220_write_fp_block(client, init_ntsc,
	384	sizeof(init_ntsc) >> 1);
23848b65	385	v4l_dbg(1, debug, client, "norm switched to NTSC\n");
1da177e4 LT	386	break;
	387
	388	case VIDEO_MODE_PAL:
	389	vpx3220_write_fp_block(client, init_pal,
	390	sizeof(init_pal) >> 1);
23848b65	391	v4l_dbg(1, debug, client, "norm switched to PAL\n");
1da177e4 LT	392	break;
	393
	394	case VIDEO_MODE_SECAM:
	395	vpx3220_write_fp_block(client, init_secam,
	396	sizeof(init_secam) >> 1);
23848b65	397	v4l_dbg(1, debug, client, "norm switched to SECAM\n");
1da177e4 LT	398	break;
	399
	400	case VIDEO_MODE_AUTO:
	401	/* FIXME This is only preliminary support */
	402	data = vpx3220_fp_read(client, 0xf2) & 0x20;
	403	vpx3220_fp_write(client, 0xf2, 0x00c0 \| data);
23848b65	404	v4l_dbg(1, debug, client, "norm switched to AUTO\n");
1da177e4 LT	405	break;
	406
	407	default:
	408	return -EINVAL;
1da177e4 LT	409	}
1da177e4 LT	410	decoder->norm = *iarg;
de21eb63 RB	411
	412	/* And here we set the backed up video input again */
	413	vpx3220_fp_write(client, 0xf2, temp_input \| 0x0010);
	414	udelay(10);
1da177e4	415	break;
23848b65	416	}
1da177e4 LT	417
	418	case DECODER_SET_INPUT:
	419	{
	420	int *iarg = arg, data;
	421
	422	/* RJ: *iarg = 0: ST8 (PCTV) input
	423	*iarg = 1: COMPOSITE input
	424	iarg = 2: SVHS input /
	425
	426	const int input[3][2] = {
	427	{0x0c, 0},
	428	{0x0d, 0},
	429	{0x0e, 1}
	430	};
	431
	432	if (iarg < 0 \|\| iarg > 2)
	433	return -EINVAL;
	434
23848b65	435	v4l_dbg(1, debug, client, "input switched to %s\n", inputs[*iarg]);
1da177e4 LT	436
	437	vpx3220_write(client, 0x33, input[*iarg][0]);
	438
	439	data = vpx3220_fp_read(client, 0xf2) & ~(0x0020);
	440	if (data < 0)
	441	return data;
	442	/* 0x0010 is required to latch the setting */
	443	vpx3220_fp_write(client, 0xf2,
	444	data \| (input[*iarg][1] << 5) \| 0x0010);
	445
	446	udelay(10);
1da177e4	447	break;
23848b65	448	}
1da177e4 LT	449
	450	case DECODER_SET_OUTPUT:
	451	{
	452	int *iarg = arg;
	453
	454	/* not much choice of outputs */
	455	if (*iarg != 0) {
	456	return -EINVAL;
	457	}
1da177e4	458	break;
23848b65	459	}
1da177e4 LT	460
	461	case DECODER_ENABLE_OUTPUT:
	462	{
	463	int *iarg = arg;
	464
23848b65	465	v4l_dbg(1, debug, client, "DECODER_ENABLE_OUTPUT %d\n", *iarg);
1da177e4 LT	466
1da177e4 LT	467	vpx3220_write(client, 0xf2, (*iarg ? 0x1b : 0x00));
1da177e4	468	break;
23848b65	469	}
1da177e4 LT	470
	471	case DECODER_SET_PICTURE:
	472	{
	473	struct video_picture *pic = arg;
	474
	475	if (decoder->bright != pic->brightness) {
	476	/* We want -128 to 128 we get 0-65535 */
	477	decoder->bright = pic->brightness;
	478	vpx3220_write(client, 0xe6,
	479	(decoder->bright - 32768) >> 8);
	480	}
	481	if (decoder->contrast != pic->contrast) {
	482	/* We want 0 to 64 we get 0-65535 */
	483	/* Bit 7 and 8 is for noise shaping */
	484	decoder->contrast = pic->contrast;
	485	vpx3220_write(client, 0xe7,
	486	(decoder->contrast >> 10) + 192);
	487	}
	488	if (decoder->sat != pic->colour) {
	489	/* We want 0 to 4096 we get 0-65535 */
	490	decoder->sat = pic->colour;
	491	vpx3220_fp_write(client, 0xa0,
	492	decoder->sat >> 4);
	493	}
	494	if (decoder->hue != pic->hue) {
	495	/* We want -512 to 512 we get 0-65535 */
	496	decoder->hue = pic->hue;
	497	vpx3220_fp_write(client, 0x1c,
	498	((decoder->hue - 32768) >> 6) & 0xFFF);
	499	}
1da177e4	500	break;
23848b65	501	}
1da177e4 LT	502
	503	default:
	504	return -EINVAL;
	505	}
	506
	507	return 0;
	508	}
	509
23848b65	510	static int vpx3220_init_client(struct i2c_client *client)
1da177e4 LT	511	{
	512	vpx3220_write_block(client, init_common, sizeof(init_common));
	513	vpx3220_write_fp_block(client, init_fp, sizeof(init_fp) >> 1);
	514	/* Default to PAL */
	515	vpx3220_write_fp_block(client, init_pal, sizeof(init_pal) >> 1);
	516
	517	return 0;
	518	}
	519
	520	/* -----------------------------------------------------------------------
c84e6036	521	* Client management code
1da177e4 LT	522	*/
1da177e4 LT	523
23848b65	524	static unsigned short normal_i2c[] = { 0x86 >> 1, 0x8e >> 1, I2C_CLIENT_END };
d56410e0	525
23848b65	526	I2C_CLIENT_INSMOD;
1da177e4	527
23848b65 HV	528	static int vpx3220_probe(struct i2c_client *client,
23848b65 HV	529	const struct i2c_device_id *id)
1da177e4	530	{
1da177e4	531	struct vpx3220 *decoder;
23848b65 HV	532	const char *name = NULL;
	533	u8 ver;
	534	u16 pn;
1da177e4 LT	535
1da177e4 LT	536	/* Check if the adapter supports the needed features */
23848b65 HV	537	if (!i2c_check_functionality(client->adapter,
	538	I2C_FUNC_SMBUS_BYTE_DATA \| I2C_FUNC_SMBUS_WORD_DATA))
	539	return -ENODEV;
1da177e4	540
7408187d	541	decoder = kzalloc(sizeof(struct vpx3220), GFP_KERNEL);
23848b65	542	if (decoder == NULL)
1da177e4	543	return -ENOMEM;
1da177e4 LT	544	decoder->norm = VIDEO_MODE_PAL;
	545	decoder->input = 0;
	546	decoder->enable = 1;
	547	decoder->bright = 32768;
	548	decoder->contrast = 32768;
	549	decoder->hue = 32768;
	550	decoder->sat = 32768;
	551	i2c_set_clientdata(client, decoder);
	552
23848b65 HV	553	ver = i2c_smbus_read_byte_data(client, 0x00);
	554	pn = (i2c_smbus_read_byte_data(client, 0x02) << 8) +
	555	i2c_smbus_read_byte_data(client, 0x01);
	556	if (ver == 0xec) {
	557	switch (pn) {
	558	case 0x4680:
	559	name = "vpx3220a";
	560	break;
	561	case 0x4260:
	562	name = "vpx3216b";
	563	break;
	564	case 0x4280:
	565	name = "vpx3214c";
	566	break;
	567	}
1da177e4	568	}
23848b65 HV	569	if (name)
	570	v4l_info(client, "%s found @ 0x%x (%s)\n", name,
	571	client->addr << 1, client->adapter->name);
	572	else
	573	v4l_info(client, "chip (%02x:%04x) found @ 0x%x (%s)\n",
	574	ver, pn, client->addr << 1, client->adapter->name);
1da177e4 LT	575
1da177e4 LT	576	vpx3220_init_client(client);
1da177e4 LT	577	return 0;
	578	}
	579
23848b65	580	static int vpx3220_remove(struct i2c_client *client)
1da177e4	581	{
23848b65 HV	582	kfree(i2c_get_clientdata(client));
23848b65 HV	583	return 0;
1da177e4 LT	584	}
1da177e4 LT	585
23848b65 HV	586	static const struct i2c_device_id vpx3220_id[] = {
	587	{ "vpx3220a", 0 },
	588	{ "vpx3216b", 0 },
	589	{ "vpx3214c", 0 },
	590	{ }
	591	};
	592	MODULE_DEVICE_TABLE(i2c, vpx3220_id);
1da177e4	593
23848b65 HV	594	static struct v4l2_i2c_driver_data v4l2_i2c_data = {
	595	.name = "vpx3220",
	596	.driverid = I2C_DRIVERID_VPX3220,
1da177e4	597	.command = vpx3220_command,
23848b65 HV	598	.probe = vpx3220_probe,
	599	.remove = vpx3220_remove,
	600	.id_table = vpx3220_id,
1da177e4	601	};