+++ /dev/null
-/*
- * 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/signal.h>
-#include <asm/io.h>
-#include <asm/pgtable.h>
-#include <asm/page.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>
-
-#define I2C_NAME(s) (s)->name
-
-#include <linux/video_decoder.h>
-
-static int debug;
-module_param(debug, int, 0644);
-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 = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
- if (client == 0)
- return -ENOMEM;
- client->addr = address;
- client->adapter = adapter;
- client->driver = &i2c_driver_saa711x;
- strlcpy(I2C_NAME(client), "saa711x", sizeof(I2C_NAME(client)));
- decoder = kzalloc(sizeof(struct saa711x), GFP_KERNEL);
- if (decoder == NULL) {
- kfree(client);
- return -ENOMEM;
- }
- 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 = {
- .driver = {
- .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);
projects / linux-2.6 / commitdiff