#include <linux/poll.h>
#include <linux/i2c.h>
#include <linux/types.h>
-#include <linux/videodev.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-common.h>
#include <linux/init.h>
#include <linux/crc32.h>
-#include <media/id.h>
#define MPEG_VIDEO_TARGET_BITRATE_MAX 27000
#define MPEG_VIDEO_MAX_BITRATE_MAX 27000
/* Addresses to scan */
static unsigned short normal_i2c[] = {0x20, I2C_CLIENT_END};
-static unsigned short normal_i2c_range[] = {I2C_CLIENT_END};
I2C_CLIENT_INSMOD;
MODULE_DESCRIPTION("device driver for saa6752hs MPEG2 encoder");
static const struct v4l2_format v4l2_format_table[] =
{
- [SAA6752HS_VF_D1] = {
- .fmt = { .pix = { .width = 720, .height = 576 }, }, },
- [SAA6752HS_VF_2_3_D1] = {
- .fmt = { .pix = { .width = 480, .height = 576 }, }, },
- [SAA6752HS_VF_1_2_D1] = {
- .fmt = { .pix = { .width = 352, .height = 576 }, }, },
- [SAA6752HS_VF_SIF] = {
- .fmt = { .pix = { .width = 352, .height = 288 }, }, },
- [SAA6752HS_VF_UNKNOWN] = {
- .fmt = { .pix = { .width = 0, .height = 0 }, }, },
+ [SAA6752HS_VF_D1] =
+ { .fmt = { .pix = { .width = 720, .height = 576 }}},
+ [SAA6752HS_VF_2_3_D1] =
+ { .fmt = { .pix = { .width = 480, .height = 576 }}},
+ [SAA6752HS_VF_1_2_D1] =
+ { .fmt = { .pix = { .width = 352, .height = 576 }}},
+ [SAA6752HS_VF_SIF] =
+ { .fmt = { .pix = { .width = 352, .height = 288 }}},
+ [SAA6752HS_VF_UNKNOWN] =
+ { .fmt = { .pix = { .width = 0, .height = 0}}},
};
struct saa6752hs_state {
struct i2c_client client;
struct v4l2_mpeg_compression params;
enum saa6752hs_videoformat video_format;
+ v4l2_std_id standard;
};
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 =
.target = 256,
},
-#if 0
- /* FIXME: size? via S_FMT? */
- .video_format = MPEG_VIDEO_FORMAT_D1,
-#endif
};
/* ---------------------------------------------------------------------- */
unsigned long timeout;
int status = 0;
- // execute the command
+ /* execute the command */
switch(command) {
- case SAA6752HS_COMMAND_RESET:
- buf[0] = 0x00;
+ case SAA6752HS_COMMAND_RESET:
+ buf[0] = 0x00;
break;
case SAA6752HS_COMMAND_STOP:
- buf[0] = 0x03;
+ buf[0] = 0x03;
break;
case SAA6752HS_COMMAND_START:
- buf[0] = 0x02;
+ buf[0] = 0x02;
break;
case SAA6752HS_COMMAND_PAUSE:
- buf[0] = 0x04;
+ buf[0] = 0x04;
break;
case SAA6752HS_COMMAND_RECONFIGURE:
buf[0] = 0x05;
break;
- case SAA6752HS_COMMAND_SLEEP:
- buf[0] = 0x06;
+ case SAA6752HS_COMMAND_SLEEP:
+ buf[0] = 0x06;
break;
- case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
+ case SAA6752HS_COMMAND_RECONFIGURE_FORCE:
buf[0] = 0x07;
break;
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_send(client, buf, 1);
i2c_master_recv(client, buf, 1);
if (!(buf[0] & 0x20))
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;
+ return status;
}
static int saa6752hs_set_bitrate(struct i2c_client* client,
struct v4l2_mpeg_compression* params)
{
- u8 buf[3];
+ 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;
+ 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;
+ buf[2] = params->vi_bitrate.max & 0xff;
i2c_master_send(client, buf, 3);
} else {
- // set the target bitrate (no max bitrate for CBR)
- buf[0] = 0x81;
+ /* 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;
+ buf[2] = params->vi_bitrate.target & 0xff;
i2c_master_send(client, buf, 3);
}
- // set the audio bitrate
- buf[0] = 0x94;
+ /* 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;
+ buf[1] = params->st_bitrate.target >> 8;
+ buf[2] = params->st_bitrate.target & 0xff;
i2c_master_send(client, buf, 3);
- // return success
return 0;
}
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
- saa6752hs_set_bitrate(client, &h->params);
+ /* 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);
localPAT[sizeof(PAT) - 1] = crc & 0xFF;
/* compute PMT */
- memcpy(localPMT, PMT, sizeof(PMT));
- localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
- localPMT[4] = h->params.ts_pid_pmt & 0xff;
+ memcpy(localPMT, PMT, sizeof(PMT));
+ localPMT[3] = 0x40 | ((h->params.ts_pid_pmt >> 8) & 0x0f);
+ localPMT[4] = h->params.ts_pid_pmt & 0xff;
localPMT[15] = 0xE0 | ((h->params.ts_pid_pcr >> 8) & 0x0F);
localPMT[16] = h->params.ts_pid_pcr & 0xFF;
localPMT[20] = 0xE0 | ((h->params.ts_pid_video >> 8) & 0x0F);
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;
+ 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;
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;
buf[8] = buf2[3];
i2c_master_send(client, buf, 9);
- // return success
return 0;
}
{
struct saa6752hs_state *h;
- printk("saa6752hs: chip found @ 0x%x\n", addr<<1);
- if (NULL == (h = kmalloc(sizeof(*h), GFP_KERNEL)))
- return -ENOMEM;
- memset(h,0,sizeof(*h));
+ if (NULL == (h = kzalloc(sizeof(*h), GFP_KERNEL)))
+ return -ENOMEM;
h->client = client_template;
h->params = param_defaults;
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);
+ i2c_attach_client(&h->client);
+
+ v4l_info(&h->client,"saa6752hs: chip found @ 0x%x\n", addr<<1);
+
return 0;
}
struct v4l2_mpeg_compression *params = arg;
int err = 0;
- switch (cmd) {
+ switch (cmd) {
case VIDIOC_S_MPEGCOMP:
if (NULL == params) {
/* apply settings and start encoder */
break;
case VIDIOC_G_FMT:
{
- struct v4l2_format *f = arg;
+ struct v4l2_format *f = arg;
if (h->video_format == SAA6752HS_VF_UNKNOWN)
h->video_format = SAA6752HS_VF_D1;
saa6752hs_set_subsampling(client, f);
break;
}
+ case VIDIOC_S_STD:
+ h->standard = *((v4l2_std_id *) arg);
+ break;
default:
/* nothing */
break;
/* ----------------------------------------------------------------------- */
static struct i2c_driver driver = {
- .owner = THIS_MODULE,
- .name = "i2c saa6752hs MPEG encoder",
- .id = I2C_DRIVERID_SAA6752HS,
- .flags = I2C_DF_NOTIFY,
- .attach_adapter = saa6752hs_probe,
- .detach_client = saa6752hs_detach,
- .command = saa6752hs_command,
+ .driver = {
+ .name = "saa6752hs",
+ },
+ .id = I2C_DRIVERID_SAA6752HS,
+ .attach_adapter = saa6752hs_probe,
+ .detach_client = saa6752hs_detach,
+ .command = saa6752hs_command,
};
static struct i2c_client client_template =
{
- I2C_DEVNAME("saa6752hs"),
- .flags = I2C_CLIENT_ALLOW_USE,
- .driver = &driver,
+ .name = "saa6752hs",
+ .driver = &driver,
};
static int __init saa6752hs_init_module(void)
git://git.onelab.eu / linux-2.6.git / blobdiff