patch-2.4.0-test7 linux/drivers/char/saa7110.c

• Lines: 430
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.4.0-test6/linux/drivers/char/saa7110.c
• Orig date: Tue Jan 4 13:57:16 2000

diff -u --recursive --new-file v2.4.0-test6/linux/drivers/char/saa7110.c linux/drivers/char/saa7110.c
@@ -1,429 +0,0 @@
-/*
-    saa7110 - Philips SAA7110(A) video decoder driver
-
-    Copyright (C) 1998 Pauline Middelink <middelin@polyware.nl>
-
-    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/types.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
-
-#include <linux/i2c-old.h>
-#include <linux/videodev.h>
-#include "linux/video_decoder.h"
-
-#define DEBUG(x...)			/* remove when no long debugging */
-
-#define SAA7110_MAX_INPUT	9	/* 6 CVBS, 3 SVHS */
-#define SAA7110_MAX_OUTPUT	0	/* its a decoder only */
-
-#define	I2C_SAA7110		0x9C	/* or 0x9E */
-
-#define	I2C_DELAY		10	/* 10 us or 100khz */
-
-struct saa7110 {
-	struct	i2c_bus	*bus;
-	int		addr;
-	unsigned char	reg[36];
-
-	int		norm;
-	int		input;
-	int		enable;
-	int		bright;
-	int		contrast;
-	int		hue;
-	int		sat;
-};
-
-/* ----------------------------------------------------------------------- */
-/* I2C support functions						   */
-/* ----------------------------------------------------------------------- */
-static
-int saa7110_write(struct saa7110 *decoder, unsigned char subaddr, unsigned char data)
-{
-	int ack;
-
-	LOCK_I2C_BUS(decoder->bus);
-	i2c_start(decoder->bus);
-	i2c_sendbyte(decoder->bus, decoder->addr, I2C_DELAY);
-	i2c_sendbyte(decoder->bus, subaddr, I2C_DELAY);
-	ack = i2c_sendbyte(decoder->bus, data, I2C_DELAY);
-	i2c_stop(decoder->bus);
-	decoder->reg[subaddr] = data;
-	UNLOCK_I2C_BUS(decoder->bus);
-	return ack;
-}
-
-static
-int saa7110_write_block(struct saa7110* decoder, unsigned const char *data, unsigned int len)
-{
-	unsigned subaddr = *data;
-
-	LOCK_I2C_BUS(decoder->bus);
-        i2c_start(decoder->bus);
-        i2c_sendbyte(decoder->bus,decoder->addr,I2C_DELAY);
-	while (len-- > 0) {
-                if (i2c_sendbyte(decoder->bus,*data,0)) {
-                        i2c_stop(decoder->bus);
-                        return -EAGAIN;
-                }
-		decoder->reg[subaddr++] = *data++;
-        }
-	i2c_stop(decoder->bus);
-	UNLOCK_I2C_BUS(decoder->bus);
-
-	return 0;
-}
-
-static
-int saa7110_read(struct saa7110* decoder)
-{
-	int data;
-
-	LOCK_I2C_BUS(decoder->bus);
-	i2c_start(decoder->bus);
-	i2c_sendbyte(decoder->bus, decoder->addr, I2C_DELAY);
-	i2c_start(decoder->bus);
-	i2c_sendbyte(decoder->bus, decoder->addr | 1, I2C_DELAY);
-	data = i2c_readbyte(decoder->bus, 1);
-	i2c_stop(decoder->bus);
-	UNLOCK_I2C_BUS(decoder->bus);
-	return data;
-}
-
-/* ----------------------------------------------------------------------- */
-/* SAA7110 functions							   */
-/* ----------------------------------------------------------------------- */
-static
-int saa7110_selmux(struct i2c_device *device, int chan)
-{
-static	const unsigned char modes[9][8] = {
-/* mode 0 */	{ 0x00, 0xD9, 0x17, 0x40, 0x03, 0x44, 0x75, 0x16 },
-/* mode 1 */	{ 0x00, 0xD8, 0x17, 0x40, 0x03, 0x44, 0x75, 0x16 },
-/* mode 2 */	{ 0x00, 0xBA, 0x07, 0x91, 0x03, 0x60, 0xB5, 0x05 },
-/* mode 3 */	{ 0x00, 0xB8, 0x07, 0x91, 0x03, 0x60, 0xB5, 0x05 },
-/* mode 4 */	{ 0x00, 0x7C, 0x07, 0xD2, 0x83, 0x60, 0xB5, 0x03 },
-/* mode 5 */	{ 0x00, 0x78, 0x07, 0xD2, 0x83, 0x60, 0xB5, 0x03 },
-/* mode 6 */	{ 0x80, 0x59, 0x17, 0x42, 0xA3, 0x44, 0x75, 0x12 },
-/* mode 7 */	{ 0x80, 0x9A, 0x17, 0xB1, 0x13, 0x60, 0xB5, 0x14 },
-/* mode 8 */	{ 0x80, 0x3C, 0x27, 0xC1, 0x23, 0x44, 0x75, 0x21 } };
-	struct saa7110* decoder = device->data;
-	const unsigned char* ptr = modes[chan];
-
-	saa7110_write(decoder,0x06,ptr[0]);	/* Luminance control	*/
-	saa7110_write(decoder,0x20,ptr[1]);	/* Analog Control #1	*/
-	saa7110_write(decoder,0x21,ptr[2]);	/* Analog Control #2	*/
-	saa7110_write(decoder,0x22,ptr[3]);	/* Mixer Control #1	*/
-	saa7110_write(decoder,0x2C,ptr[4]);	/* Mixer Control #2	*/
-	saa7110_write(decoder,0x30,ptr[5]);	/* ADCs gain control	*/
-	saa7110_write(decoder,0x31,ptr[6]);	/* Mixer Control #3	*/
-	saa7110_write(decoder,0x21,ptr[7]);	/* Analog Control #2	*/
-
-	return 0;
-}
-
-static
-int determine_norm(struct i2c_device* dev)
-{
-	struct	saa7110* decoder = dev->data;
-	int	status;
-
-	/* mode changed, start automatic detection */
-	status = saa7110_read(decoder);
-	if ((status & 3) == 0) {
-		saa7110_write(decoder,0x06,0x80);
-		if (status & 0x20) {
-			DEBUG(printk(KERN_INFO "%s: norm=bw60\n",dev->name));
-			saa7110_write(decoder,0x2E,0x81);
-			return VIDEO_MODE_NTSC;
-		}
-		DEBUG(printk(KERN_INFO "%s: norm=bw50\n",dev->name));
-		saa7110_write(decoder,0x2E,0x9A);
-		return VIDEO_MODE_PAL;
-	}
-
-	saa7110_write(decoder,0x06,0x00);
-	if (status & 0x20) {	/* 60Hz */
-		DEBUG(printk(KERN_INFO "%s: norm=ntsc\n",dev->name));
-		saa7110_write(decoder,0x0D,0x06);
-		saa7110_write(decoder,0x11,0x2C);
-		saa7110_write(decoder,0x2E,0x81);
-		return VIDEO_MODE_NTSC;
-	}
-
-	/* 50Hz -> PAL/SECAM */
-	saa7110_write(decoder,0x0D,0x06);
-	saa7110_write(decoder,0x11,0x59);
-	saa7110_write(decoder,0x2E,0x9A);
-
-	mdelay(150);	/* pause 150 ms */
-
-	status = saa7110_read(decoder);
-	if ((status & 0x03) == 0x01) {
-		DEBUG(printk(KERN_INFO "%s: norm=secam\n",dev->name));
-		saa7110_write(decoder,0x0D,0x07);
-		return VIDEO_MODE_SECAM;
-	}
-	DEBUG(printk(KERN_INFO "%s: norm=pal\n",dev->name));
-	return VIDEO_MODE_PAL;
-}
-
-static
-int saa7110_attach(struct i2c_device *device)
-{
-static	const unsigned char initseq[] = {
-	     0, 0x4C, 0x3C, 0x0D, 0xEF, 0xBD, 0xF0, 0x00, 0x00,
-		0xF8, 0xF8, 0x60, 0x60, 0x00, 0x06, 0x18, 0x90,
-		0x00, 0x2C, 0x40, 0x46, 0x42, 0x1A, 0xFF, 0xDA,
-		0xF0, 0x8B, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-		0xD9, 0x17, 0x40, 0x41, 0x80, 0x41, 0x80, 0x4F,
-		0xFE, 0x01, 0xCF, 0x0F, 0x03, 0x01, 0x81, 0x03,
-		0x40, 0x75, 0x01, 0x8C, 0x03};
-	struct	saa7110*	decoder;
-	int			rv;
-
-	device->data = decoder = kmalloc(sizeof(struct saa7110), GFP_KERNEL);
-	if (device->data == 0)
-		return -ENOMEM;
-
-	MOD_INC_USE_COUNT;
-
-	/* clear our private data */
-	memset(decoder, 0, sizeof(struct saa7110));
-	strcpy(device->name, "saa7110");
-	decoder->bus = device->bus;
-	decoder->addr = device->addr;
-	decoder->norm = VIDEO_MODE_PAL;
-	decoder->input = 0;
-	decoder->enable = 1;
-	decoder->bright = 32768;
-	decoder->contrast = 32768;
-	decoder->hue = 32768;
-	decoder->sat = 32768;
-
-	rv = saa7110_write_block(decoder, initseq, sizeof(initseq));
-	if (rv < 0)
-		printk(KERN_ERR "%s_attach: init status %d\n", device->name, rv);
-	else {
-		saa7110_write(decoder,0x21,0x16);
-		saa7110_write(decoder,0x0D,0x04);
-		DEBUG(printk(KERN_INFO "%s_attach: chip version %x\n", device->name, saa7110_read(decoder)));
-		saa7110_write(decoder,0x0D,0x06);
-	}
-
-	/* setup and implicit mode 0 select has been performed */
-	return 0;
-}
-
-static
-int saa7110_detach(struct i2c_device *device)
-{
-	struct saa7110* decoder = device->data;
-
-	DEBUG(printk(KERN_INFO "%s_detach\n",device->name));
-
-	/* stop further output */
-	saa7110_write(decoder,0x0E,0x00);
-
-	kfree(device->data);
-
-	MOD_DEC_USE_COUNT;
-	return 0;
-}
-
-static
-int saa7110_command(struct i2c_device *device, unsigned int cmd, void *arg)
-{
-	struct saa7110* decoder = device->data;
-	int	v;
-
-	switch (cmd) {
-	 case DECODER_GET_CAPABILITIES:
-		{
-			struct video_decoder_capability *dc = arg;
-			dc->flags = VIDEO_DECODER_PAL
-				  | VIDEO_DECODER_NTSC
-				  | VIDEO_DECODER_SECAM
-				  | VIDEO_DECODER_AUTO
-				  | VIDEO_DECODER_CCIR;
-			dc->inputs = SAA7110_MAX_INPUT;
-			dc->outputs = SAA7110_MAX_OUTPUT;
-		}
-		break;
-
-	 case DECODER_GET_STATUS:
-		{
-			struct saa7110* decoder = device->data;
-			int status;
-			int res = 0;
-
-			status = i2c_read(device->bus,device->addr|1);
-			if (status & 0x40)
-				res |= DECODER_STATUS_GOOD;
-			if (status & 0x03)
-				res |= DECODER_STATUS_COLOR;
-
-			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;
-			}
-			*(int*)arg = res;
-		}
-		break;
-
-	 case DECODER_SET_NORM:
-		v = *(int*)arg;
-		if (decoder->norm != v) {
-			decoder->norm = v;
-			saa7110_write(decoder, 0x06, 0x00);
-			switch (v) {
-			 case VIDEO_MODE_NTSC:
-				saa7110_write(decoder, 0x0D, 0x06);
-				saa7110_write(decoder, 0x11, 0x2C);
-				saa7110_write(decoder, 0x30, 0x81);
-saa7110_write(decoder, 0x2A, 0xDF);
-				break;
-			 case VIDEO_MODE_PAL:
-				saa7110_write(decoder, 0x0D, 0x06);
-				saa7110_write(decoder, 0x11, 0x59);
-				saa7110_write(decoder, 0x2E, 0x9A);
-				break;
-			 case VIDEO_MODE_SECAM:
-				saa7110_write(decoder, 0x0D, 0x07);
-				saa7110_write(decoder, 0x11, 0x59);
-				saa7110_write(decoder, 0x2E, 0x9A);
-				break;
-			 case VIDEO_MODE_AUTO:
-				*(int*)arg = determine_norm(device);
-				break;
-			 default:
-				return -EPERM;
-			}
-		}
-		break;
-
-	 case DECODER_SET_INPUT:
-		v = *(int*)arg;
-		if (v<0 || v>SAA7110_MAX_INPUT)
-			return -EINVAL;
-		if (decoder->input != v) {
-			decoder->input = v;
-			saa7110_selmux(device, v);
-		}
-		break;
-
-	 case DECODER_SET_OUTPUT:
-		v = *(int*)arg;
-		/* not much choice of outputs */
-		if (v != 0)
-			return -EINVAL;
-		break;
-
-	 case DECODER_ENABLE_OUTPUT:
-		v = *(int*)arg;
-		if (decoder->enable != v) {
-			decoder->enable = v;
-			saa7110_write(decoder,0x0E, v ? 0x18 : 0x00);
-		}
-		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;
-				saa7110_write(decoder, 0x19, decoder->bright >> 8);
-			}
-			if (decoder->contrast != pic->contrast) {
-				/* We want 0 to 127 we get 0-65535 */
-				decoder->contrast = pic->contrast;
-				saa7110_write(decoder, 0x13, decoder->contrast >> 9);
-			}
-			if (decoder->sat != pic->colour) {
-				/* We want 0 to 127 we get 0-65535 */
-				decoder->sat = pic->colour;
-				saa7110_write(decoder, 0x12, decoder->sat >> 9);
-			}
-			if (decoder->hue != pic->hue) {
-				/* We want -128 to 127 we get 0-65535 */
-				decoder->hue = pic->hue;
-				saa7110_write(decoder, 0x07, (decoder->hue>>8)-128);
-			}
-		}
-		break;
-
-	 case DECODER_DUMP:
-		for (v=0; v<34; v+=16) {
-			int j;
-			DEBUG(printk(KERN_INFO "%s: %03x\n",device->name,v));
-			for (j=0; j<16; j++) {
-				DEBUG(printk(KERN_INFO " %02x",decoder->reg[v+j]));
-			}
-			DEBUG(printk(KERN_INFO "\n"));
-		}
-		break;
-
-	 default:
-		DEBUG(printk(KERN_INFO "unknown saa7110_command??(%d)\n",cmd));
-		return -EINVAL;
-	}
-	return 0;
-}
-
-/* ----------------------------------------------------------------------- */
-
-struct i2c_driver i2c_driver_saa7110 =
-{
-	"saa7110",			/* name */
-
-	I2C_DRIVERID_VIDEODECODER,	/* in i2c.h */
-	I2C_SAA7110, I2C_SAA7110+1,	/* Addr range */
-
-	saa7110_attach,
-	saa7110_detach,
-	saa7110_command
-};
-
-EXPORT_NO_SYMBOLS;
-
-#ifdef MODULE
-int init_module(void)
-#else
-int saa7110_init(void)
-#endif
-{
-	return i2c_register_driver(&i2c_driver_saa7110);
-}
-
-#ifdef MODULE
-void cleanup_module(void)
-{
-	i2c_unregister_driver(&i2c_driver_saa7110);
-}
-#endif