/* ----------------------------------------------------------------------- */
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
saa7110_write_block (struct i2c_client *client,
const u8 *data,
unsigned int len)
{
int ret = -1;
u8 reg = *data; /* first register to write to */
/* Sanity check */
if (reg + (len - 1) > SAA7110_NR_REG)
return ret;
/* the saa7110 has an autoincrement function, use it if
* the adapter understands raw I2C */
if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
struct saa7110 *decoder = i2c_get_clientdata(client);
ret = i2c_master_send(client, data, len);
/* Cache the written data */
memcpy(decoder->reg + reg, data + 1, len - 1);
} else {
for (++data, --len; len; len--) {
if ((ret = saa7110_write(client, reg++,
*data++)) < 0)
break;
}
}
return ret;
}
static int
saa7110_selmux (struct i2c_client *client,
int chan)
{
static const unsigned char modes[9][8] = {
/* mode 0 */
{ FRESP_06H_COMPST, 0xD9, 0x17, 0x40, 0x03,
0x44, 0x75, 0x16
},
/* mode 1 */
{ FRESP_06H_COMPST, 0xD8, 0x17, 0x40, 0x03,
0x44, 0x75, 0x16
},
/* mode 2 */
{ FRESP_06H_COMPST, 0xBA, 0x07, 0x91, 0x03,
0x60, 0xB5, 0x05
},
/* mode 3 */
{ FRESP_06H_COMPST, 0xB8, 0x07, 0x91, 0x03,
0x60, 0xB5, 0x05
},
/* mode 4 */
{ FRESP_06H_COMPST, 0x7C, 0x07, 0xD2, 0x83,
0x60, 0xB5, 0x03
},
/* mode 5 */
{ FRESP_06H_COMPST, 0x78, 0x07, 0xD2, 0x83,
0x60, 0xB5, 0x03
},
/* mode 6 */
{ FRESP_06H_SVIDEO, 0x59, 0x17, 0x42, 0xA3,
0x44, 0x75, 0x12
},
/* mode 7 */
{ FRESP_06H_SVIDEO, 0x9A, 0x17, 0xB1, 0x13,
0x60, 0xB5, 0x14
},
/* mode 8 */
{ FRESP_06H_SVIDEO, 0x3C, 0x27, 0xC1, 0x23,
0x44, 0x75, 0x21
}
};
struct saa7110 *decoder = i2c_get_clientdata(client);
const unsigned char *ptr = modes[chan];
saa7110_write(client, 0x06, ptr[0]); /* Luminance control */
saa7110_write(client, 0x20, ptr[1]); /* Analog Control #1 */
saa7110_write(client, 0x21, ptr[2]); /* Analog Control #2 */
saa7110_write(client, 0x22, ptr[3]); /* Mixer Control #1 */
saa7110_write(client, 0x2C, ptr[4]); /* Mixer Control #2 */
saa7110_write(client, 0x30, ptr[5]); /* ADCs gain control */
saa7110_write(client, 0x31, ptr[6]); /* Mixer Control #3 */
saa7110_write(client, 0x21, ptr[7]); /* Analog Control #2 */
decoder->input = chan;
return 0;
}
static int determine_norm(struct i2c_client *client)
{
DEFINE_WAIT(wait);
struct saa7110 *decoder = i2c_get_clientdata(client);
int status;
/* mode changed, start automatic detection */
saa7110_write_block(client, initseq, sizeof(initseq));
saa7110_selmux(client, decoder->input);
prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(250));
finish_wait(&decoder->wq, &wait);
status = saa7110_read(client);
if (status & 0x40) {
v4l_dbg(1, debug, client, "status=0x%02x (no signal)\n", status);
return decoder->norm; // no change
}
if ((status & 3) == 0) {
saa7110_write(client, 0x06, 0x83);
if (status & 0x20) {
v4l_dbg(1, debug, client, "status=0x%02x (NTSC/no color)\n", status);
//saa7110_write(client,0x2E,0x81);
return VIDEO_MODE_NTSC;
}
v4l_dbg(1, debug, client, "status=0x%02x (PAL/no color)\n", status);
//saa7110_write(client,0x2E,0x9A);
return VIDEO_MODE_PAL;
}
//saa7110_write(client,0x06,0x03);
if (status & 0x20) { /* 60Hz */
v4l_dbg(1, debug, client, "status=0x%02x (NTSC)\n", status);
saa7110_write(client, 0x0D, 0x86);
saa7110_write(client, 0x0F, 0x50);
saa7110_write(client, 0x11, 0x2C);
//saa7110_write(client,0x2E,0x81);
return VIDEO_MODE_NTSC;
}
/* 50Hz -> PAL/SECAM */
saa7110_write(client, 0x0D, 0x86);
saa7110_write(client, 0x0F, 0x10);
saa7110_write(client, 0x11, 0x59);
//saa7110_write(client,0x2E,0x9A);
prepare_to_wait(&decoder->wq, &wait, TASK_UNINTERRUPTIBLE);
schedule_timeout(msecs_to_jiffies(250));
finish_wait(&decoder->wq, &wait);
status = saa7110_read(client);
if ((status & 0x03) == 0x01) {
v4l_dbg(1, debug, client, "status=0x%02x (SECAM)\n", status);
saa7110_write(client, 0x0D, 0x87);
return VIDEO_MODE_SECAM;
}
v4l_dbg(1, debug, client, "status=0x%02x (PAL)\n", status);
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_client *client,
unsigned int cmd,
void *arg)
{
struct saa7110 *decoder = i2c_get_clientdata(client);
int v;
switch (cmd) {
case 0:
//saa7110_write_block(client, initseq, sizeof(initseq));
break;
case DECODER_GET_CAPABILITIES:
{
struct video_decoder_capability *dc = arg;
dc->flags =
VIDEO_DECODER_PAL | VIDEO_DECODER_NTSC |
VIDEO_DECODER_SECAM | VIDEO_DECODER_AUTO;
dc->inputs = SAA7110_MAX_INPUT;
dc->outputs = SAA7110_MAX_OUTPUT;
}
break;
case DECODER_GET_STATUS:
{
int status;
int res = 0;
status = saa7110_read(client);
dprintk(1, KERN_INFO "%s: status=0x%02x norm=%d\n",
I2C_NAME(client), status, decoder->norm);
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(client, 0x06, 0x03);
switch (v) {
case VIDEO_MODE_NTSC:
saa7110_write(client, 0x0D, 0x86);
saa7110_write(client, 0x0F, 0x50);
saa7110_write(client, 0x11, 0x2C);
//saa7110_write(client, 0x2E, 0x81);
dprintk(1,
KERN_INFO "%s: switched to NTSC\n",
I2C_NAME(client));
break;
case VIDEO_MODE_PAL:
saa7110_write(client, 0x0D, 0x86);
saa7110_write(client, 0x0F, 0x10);
saa7110_write(client, 0x11, 0x59);
//saa7110_write(client, 0x2E, 0x9A);
dprintk(1,
KERN_INFO "%s: switched to PAL\n",
I2C_NAME(client));
break;
case VIDEO_MODE_SECAM:
saa7110_write(client, 0x0D, 0x87);
saa7110_write(client, 0x0F, 0x10);
saa7110_write(client, 0x11, 0x59);
//saa7110_write(client, 0x2E, 0x9A);
dprintk(1,
KERN_INFO
"%s: switched to SECAM\n",
I2C_NAME(client));
break;
case VIDEO_MODE_AUTO:
dprintk(1,
KERN_INFO
"%s: TV standard detection...\n",
I2C_NAME(client));
decoder->norm = determine_norm(client);
*(int *) arg = decoder->norm;
break;
default:
return -EPERM;
}
}
break;
case DECODER_SET_INPUT:
v = *(int *) arg;
if (v < 0 || v > SAA7110_MAX_INPUT) {
dprintk(1,
KERN_INFO "%s: input=%d not available\n",
I2C_NAME(client), v);
return -EINVAL;
}
if (decoder->input != v) {
saa7110_selmux(client, v);
dprintk(1, KERN_INFO "%s: switched to input=%d\n",
I2C_NAME(client), 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(client, 0x0E, v ? 0x18 : 0x80);
dprintk(1, KERN_INFO "%s: YUV %s\n", I2C_NAME(client),
v ? "on" : "off");
}
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(client, 0x19, decoder->bright >> 8);
}
if (decoder->contrast != pic->contrast) {
/* We want 0 to 127 we get 0-65535 */
decoder->contrast = pic->contrast;
saa7110_write(client, 0x13,
decoder->contrast >> 9);
}
if (decoder->sat != pic->colour) {
/* We want 0 to 127 we get 0-65535 */
decoder->sat = pic->colour;
saa7110_write(client, 0x12, decoder->sat >> 9);
}
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);
}
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;
}
