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path: root/drivers/media/video
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-rw-r--r--drivers/media/video/saa7134/saa6752hs.c130
1 files changed, 70 insertions, 60 deletions
diff --git a/drivers/media/video/saa7134/saa6752hs.c b/drivers/media/video/saa7134/saa6752hs.c
index 382911c6ef2..dac720ea3b0 100644
--- a/drivers/media/video/saa7134/saa6752hs.c
+++ b/drivers/media/video/saa7134/saa6752hs.c
@@ -57,6 +57,7 @@ struct saa6752hs_state {
struct i2c_client client;
struct v4l2_mpeg_compression params;
enum saa6752hs_videoformat video_format;
+ v4l2_std_id standard;
};
enum saa6752hs_command {
@@ -74,58 +75,58 @@ enum saa6752hs_command {
/* ---------------------------------------------------------------------- */
static u8 PAT[] = {
- 0xc2, // i2c register
- 0x00, // table number for encoder
+ 0xc2, /* i2c register */
+ 0x00, /* table number for encoder */
- 0x47, // sync
- 0x40, 0x00, // transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0)
- 0x10, // transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0)
+ 0x47, /* sync */
+ 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid(0) */
+ 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
- 0x00, // PSI pointer to start of table
+ 0x00, /* PSI pointer to start of table */
- 0x00, // tid(0)
- 0xb0, 0x0d, // section_syntax_indicator(1), section_length(13)
+ 0x00, /* tid(0) */
+ 0xb0, 0x0d, /* section_syntax_indicator(1), section_length(13) */
- 0x00, 0x01, // transport_stream_id(1)
+ 0x00, 0x01, /* transport_stream_id(1) */
- 0xc1, // version_number(0), current_next_indicator(1)
+ 0xc1, /* version_number(0), current_next_indicator(1) */
- 0x00, 0x00, // section_number(0), last_section_number(0)
+ 0x00, 0x00, /* section_number(0), last_section_number(0) */
- 0x00, 0x01, // program_number(1)
+ 0x00, 0x01, /* program_number(1) */
- 0xe0, 0x00, // PMT PID
+ 0xe0, 0x00, /* PMT PID */
- 0x00, 0x00, 0x00, 0x00 // CRC32
+ 0x00, 0x00, 0x00, 0x00 /* CRC32 */
};
static u8 PMT[] = {
- 0xc2, // i2c register
- 0x01, // table number for encoder
+ 0xc2, /* i2c register */
+ 0x01, /* table number for encoder */
- 0x47, // sync
- 0x40, 0x00, // transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid
- 0x10, // transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0)
+ 0x47, /* sync */
+ 0x40, 0x00, /* transport_error_indicator(0), payload_unit_start(1), transport_priority(0), pid */
+ 0x10, /* transport_scrambling_control(00), adaptation_field_control(01), continuity_counter(0) */
- 0x00, // PSI pointer to start of table
+ 0x00, /* PSI pointer to start of table */
- 0x02, // tid(2)
- 0xb0, 0x17, // section_syntax_indicator(1), section_length(23)
+ 0x02, /* tid(2) */
+ 0xb0, 0x17, /* section_syntax_indicator(1), section_length(23) */
- 0x00, 0x01, // program_number(1)
+ 0x00, 0x01, /* program_number(1) */
- 0xc1, // version_number(0), current_next_indicator(1)
+ 0xc1, /* version_number(0), current_next_indicator(1) */
- 0x00, 0x00, // section_number(0), last_section_number(0)
+ 0x00, 0x00, /* section_number(0), last_section_number(0) */
- 0xe0, 0x00, // PCR_PID
+ 0xe0, 0x00, /* PCR_PID */
- 0xf0, 0x00, // program_info_length(0)
+ 0xf0, 0x00, /* program_info_length(0) */
- 0x02, 0xe0, 0x00, 0xf0, 0x00, // video stream type(2), pid
- 0x04, 0xe0, 0x00, 0xf0, 0x00, // audio stream type(4), pid
+ 0x02, 0xe0, 0x00, 0xf0, 0x00, /* video stream type(2), pid */
+ 0x04, 0xe0, 0x00, 0xf0, 0x00, /* audio stream type(4), pid */
- 0x00, 0x00, 0x00, 0x00 // CRC32
+ 0x00, 0x00, 0x00, 0x00 /* CRC32 */
};
static struct v4l2_mpeg_compression param_defaults =
@@ -166,7 +167,7 @@ static int saa6752hs_chip_command(struct i2c_client* client,
unsigned long timeout;
int status = 0;
- // execute the command
+ /* execute the command */
switch(command) {
case SAA6752HS_COMMAND_RESET:
buf[0] = 0x00;
@@ -200,11 +201,11 @@ static int saa6752hs_chip_command(struct i2c_client* client,
return -EINVAL;
}
- // set it and wait for it to be so
+ /* set it and wait for it to be so */
i2c_master_send(client, buf, 1);
timeout = jiffies + HZ * 3;
for (;;) {
- // get the current status
+ /* get the current status */
buf[0] = 0x10;
i2c_master_send(client, buf, 1);
i2c_master_recv(client, buf, 1);
@@ -216,14 +217,12 @@ static int saa6752hs_chip_command(struct i2c_client* client,
break;
}
- // wait a bit
msleep(10);
}
- // delay a bit to let encoder settle
+ /* delay a bit to let encoder settle */
msleep(50);
- // done
return status;
}
@@ -233,44 +232,43 @@ static int saa6752hs_set_bitrate(struct i2c_client* client,
{
u8 buf[3];
- // set the bitrate mode
+ /* set the bitrate mode */
buf[0] = 0x71;
buf[1] = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? 0 : 1;
i2c_master_send(client, buf, 2);
- // set the video bitrate
+ /* set the video bitrate */
if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) {
- // set the target bitrate
+ /* set the target bitrate */
buf[0] = 0x80;
buf[1] = params->vi_bitrate.target >> 8;
buf[2] = params->vi_bitrate.target & 0xff;
i2c_master_send(client, buf, 3);
- // set the max bitrate
+ /* set the max bitrate */
buf[0] = 0x81;
buf[1] = params->vi_bitrate.max >> 8;
buf[2] = params->vi_bitrate.max & 0xff;
i2c_master_send(client, buf, 3);
} else {
- // set the target bitrate (no max bitrate for CBR)
+ /* set the target bitrate (no max bitrate for CBR) */
buf[0] = 0x81;
buf[1] = params->vi_bitrate.target >> 8;
buf[2] = params->vi_bitrate.target & 0xff;
i2c_master_send(client, buf, 3);
}
- // set the audio bitrate
+ /* set the audio bitrate */
buf[0] = 0x94;
buf[1] = (256 == params->au_bitrate.target) ? 0 : 1;
i2c_master_send(client, buf, 2);
- // set the total bitrate
+ /* set the total bitrate */
buf[0] = 0xb1;
buf[1] = params->st_bitrate.target >> 8;
buf[2] = params->st_bitrate.target & 0xff;
i2c_master_send(client, buf, 3);
- // return success
return 0;
}
@@ -376,36 +374,43 @@ static int saa6752hs_init(struct i2c_client* client)
h = i2c_get_clientdata(client);
- // Set video format - must be done first as it resets other settings
+ /* Set video format - must be done first as it resets other settings */
buf[0] = 0x41;
buf[1] = h->video_format;
i2c_master_send(client, buf, 2);
- // set bitrate
+ /* Set number of lines in input signal */
+ buf[0] = 0x40;
+ buf[1] = 0x00;
+ if (h->standard & V4L2_STD_525_60)
+ buf[1] = 0x01;
+ i2c_master_send(client, buf, 2);
+
+ /* set bitrate */
saa6752hs_set_bitrate(client, &h->params);
- // Set GOP structure {3, 13}
+ /* Set GOP structure {3, 13} */
buf[0] = 0x72;
buf[1] = 0x03;
buf[2] = 0x0D;
i2c_master_send(client,buf,3);
- // Set minimum Q-scale {4}
+ /* Set minimum Q-scale {4} */
buf[0] = 0x82;
buf[1] = 0x04;
i2c_master_send(client,buf,2);
- // Set maximum Q-scale {12}
+ /* Set maximum Q-scale {12} */
buf[0] = 0x83;
buf[1] = 0x0C;
i2c_master_send(client,buf,2);
- // Set Output Protocol
+ /* Set Output Protocol */
buf[0] = 0xD0;
buf[1] = 0x81;
i2c_master_send(client,buf,2);
- // Set video output stream format {TS}
+ /* Set video output stream format {TS} */
buf[0] = 0xB0;
buf[1] = 0x05;
i2c_master_send(client,buf,2);
@@ -436,39 +441,39 @@ static int saa6752hs_init(struct i2c_client* client)
localPMT[sizeof(PMT) - 2] = (crc >> 8) & 0xFF;
localPMT[sizeof(PMT) - 1] = crc & 0xFF;
- // Set Audio PID
+ /* Set Audio PID */
buf[0] = 0xC1;
buf[1] = (h->params.ts_pid_audio >> 8) & 0xFF;
buf[2] = h->params.ts_pid_audio & 0xFF;
i2c_master_send(client,buf,3);
- // Set Video PID
+ /* Set Video PID */
buf[0] = 0xC0;
buf[1] = (h->params.ts_pid_video >> 8) & 0xFF;
buf[2] = h->params.ts_pid_video & 0xFF;
i2c_master_send(client,buf,3);
- // Set PCR PID
+ /* Set PCR PID */
buf[0] = 0xC4;
buf[1] = (h->params.ts_pid_pcr >> 8) & 0xFF;
buf[2] = h->params.ts_pid_pcr & 0xFF;
i2c_master_send(client,buf,3);
- // Send SI tables
+ /* Send SI tables */
i2c_master_send(client,localPAT,sizeof(PAT));
i2c_master_send(client,localPMT,sizeof(PMT));
- // mute then unmute audio. This removes buzzing artefacts
+ /* mute then unmute audio. This removes buzzing artefacts */
buf[0] = 0xa4;
buf[1] = 1;
i2c_master_send(client, buf, 2);
buf[1] = 0;
i2c_master_send(client, buf, 2);
- // start it going
+ /* start it going */
saa6752hs_chip_command(client, SAA6752HS_COMMAND_START);
- // readout current state
+ /* readout current state */
buf[0] = 0xE1;
buf[1] = 0xA7;
buf[2] = 0xFE;
@@ -477,7 +482,7 @@ static int saa6752hs_init(struct i2c_client* client)
i2c_master_send(client, buf, 5);
i2c_master_recv(client, buf2, 4);
- // change aspect ratio
+ /* change aspect ratio */
buf[0] = 0xE0;
buf[1] = 0xA7;
buf[2] = 0xFE;
@@ -498,7 +503,6 @@ static int saa6752hs_init(struct i2c_client* client)
buf[8] = buf2[3];
i2c_master_send(client, buf, 9);
- // return success
return 0;
}
@@ -516,6 +520,9 @@ static int saa6752hs_attach(struct i2c_adapter *adap, int addr, int kind)
h->client.adapter = adap;
h->client.addr = addr;
+ /* Assume 625 input lines */
+ h->standard = 0;
+
i2c_set_clientdata(&h->client, h);
i2c_attach_client(&h->client);
return 0;
@@ -576,6 +583,9 @@ saa6752hs_command(struct i2c_client *client, unsigned int cmd, void *arg)
saa6752hs_set_subsampling(client, f);
break;
}
+ case VIDIOC_S_STD:
+ h->standard = *((v4l2_std_id *) arg);
+ break;
default:
/* nothing */
break;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 17:41:58 +0000