From 9b71521b66da26129255ade6ad71f708032bc0e0 Mon Sep 17 00:00:00 2001 From: "Robert W. Boone" Date: Tue, 8 Nov 2005 21:36:45 -0800 Subject: [PATCH] [PATCH] v4l: 686: change the number of lines in the input signal when the - Change the number of lines in the input signal when the video standard is changed. - Fix comments style. Signed-off-by: Robert W. Boone Signed-off-by: Nickolay V. Shmyrev Signed-off-by: Mauro Carvalho Chehab Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/media/video/saa7134/saa6752hs.c | 130 +++++++++++++----------- 1 file 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; -- 2.39.2