diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/media/video/saa7134/saa6752hs.c | 315 |
1 files changed, 262 insertions, 53 deletions
diff --git a/drivers/media/video/saa7134/saa6752hs.c b/drivers/media/video/saa7134/saa6752hs.c index 0e0ba50946e8..afc8f352b8e7 100644 --- a/drivers/media/video/saa7134/saa6752hs.c +++ b/drivers/media/video/saa7134/saa6752hs.c @@ -39,6 +39,23 @@ enum saa6752hs_videoformat { SAA6752HS_VF_UNKNOWN, }; +struct saa6752hs_mpeg_params { + /* transport streams */ + __u16 ts_pid_pmt; + __u16 ts_pid_audio; + __u16 ts_pid_video; + __u16 ts_pid_pcr; + + /* audio */ + enum v4l2_mpeg_audio_l2_bitrate au_l2_bitrate; + + /* video */ + enum v4l2_mpeg_video_aspect vi_aspect; + enum v4l2_mpeg_video_bitrate_mode vi_bitrate_mode; + __u32 vi_bitrate; + __u32 vi_bitrate_peak; +}; + static const struct v4l2_format v4l2_format_table[] = { [SAA6752HS_VF_D1] = @@ -55,18 +72,19 @@ static const struct v4l2_format v4l2_format_table[] = struct saa6752hs_state { struct i2c_client client; - struct v4l2_mpeg_compression params; + struct v4l2_mpeg_compression old_params; + struct saa6752hs_mpeg_params params; enum saa6752hs_videoformat video_format; v4l2_std_id standard; }; enum saa6752hs_command { SAA6752HS_COMMAND_RESET = 0, - SAA6752HS_COMMAND_STOP = 1, - SAA6752HS_COMMAND_START = 2, - SAA6752HS_COMMAND_PAUSE = 3, - SAA6752HS_COMMAND_RECONFIGURE = 4, - SAA6752HS_COMMAND_SLEEP = 5, + SAA6752HS_COMMAND_STOP = 1, + SAA6752HS_COMMAND_START = 2, + SAA6752HS_COMMAND_PAUSE = 3, + SAA6752HS_COMMAND_RECONFIGURE = 4, + SAA6752HS_COMMAND_SLEEP = 5, SAA6752HS_COMMAND_RECONFIGURE_FORCE = 6, SAA6752HS_COMMAND_MAX @@ -129,7 +147,22 @@ static u8 PMT[] = { 0x00, 0x00, 0x00, 0x00 /* CRC32 */ }; -static struct v4l2_mpeg_compression param_defaults = +static struct saa6752hs_mpeg_params param_defaults = +{ + .ts_pid_pmt = 16, + .ts_pid_video = 260, + .ts_pid_audio = 256, + .ts_pid_pcr = 259, + + .vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3, + .vi_bitrate = 4000, + .vi_bitrate_peak = 6000, + .vi_bitrate_mode = V4L2_MPEG_VIDEO_BITRATE_MODE_VBR, + + .au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K, +}; + +static struct v4l2_mpeg_compression old_param_defaults = { .st_type = V4L2_MPEG_TS_2, .st_bitrate = { @@ -228,45 +261,57 @@ static int saa6752hs_chip_command(struct i2c_client* client, static int saa6752hs_set_bitrate(struct i2c_client* client, - struct v4l2_mpeg_compression* params) + struct saa6752hs_mpeg_params* params) { u8 buf[3]; + int tot_bitrate; /* set the bitrate mode */ buf[0] = 0x71; - buf[1] = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? 0 : 1; + buf[1] = (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) ? 0 : 1; i2c_master_send(client, buf, 2); /* set the video bitrate */ - if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) { + if (params->vi_bitrate_mode == V4L2_MPEG_VIDEO_BITRATE_MODE_VBR) { /* set the target bitrate */ buf[0] = 0x80; - buf[1] = params->vi_bitrate.target >> 8; - buf[2] = params->vi_bitrate.target & 0xff; + buf[1] = params->vi_bitrate >> 8; + buf[2] = params->vi_bitrate & 0xff; i2c_master_send(client, buf, 3); /* set the max bitrate */ buf[0] = 0x81; - buf[1] = params->vi_bitrate.max >> 8; - buf[2] = params->vi_bitrate.max & 0xff; + buf[1] = params->vi_bitrate_peak >> 8; + buf[2] = params->vi_bitrate_peak & 0xff; i2c_master_send(client, buf, 3); + tot_bitrate = params->vi_bitrate_peak; } else { /* 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[1] = params->vi_bitrate >> 8; + buf[2] = params->vi_bitrate & 0xff; i2c_master_send(client, buf, 3); + tot_bitrate = params->vi_bitrate; } /* set the audio bitrate */ buf[0] = 0x94; - buf[1] = (256 == params->au_bitrate.target) ? 0 : 1; + buf[1] = (V4L2_MPEG_AUDIO_L2_BITRATE_256K == params->au_l2_bitrate) ? 0 : 1; i2c_master_send(client, buf, 2); + tot_bitrate += (V4L2_MPEG_AUDIO_L2_BITRATE_256K == params->au_l2_bitrate) ? 256 : 384; + + /* Note: the total max bitrate is determined by adding the video and audio + bitrates together and also adding an extra 768kbit/s to stay on the + safe side. If more control should be required, then an extra MPEG control + should be added. */ + tot_bitrate += 768; + if (tot_bitrate > MPEG_TOTAL_TARGET_BITRATE_MAX) + tot_bitrate = MPEG_TOTAL_TARGET_BITRATE_MAX; /* set the total bitrate */ buf[0] = 0xb1; - buf[1] = params->st_bitrate.target >> 8; - buf[2] = params->st_bitrate.target & 0xff; + buf[1] = tot_bitrate >> 8; + buf[2] = tot_bitrate & 0xff; i2c_master_send(client, buf, 3); return 0; @@ -318,50 +363,188 @@ static void saa6752hs_set_subsampling(struct i2c_client* client, } -static void saa6752hs_set_params(struct i2c_client* client, +static void saa6752hs_old_set_params(struct i2c_client* client, struct v4l2_mpeg_compression* params) { struct saa6752hs_state *h = i2c_get_clientdata(client); /* check PIDs */ - if (params->ts_pid_pmt <= MPEG_PID_MAX) + if (params->ts_pid_pmt <= MPEG_PID_MAX) { + h->old_params.ts_pid_pmt = params->ts_pid_pmt; h->params.ts_pid_pmt = params->ts_pid_pmt; - if (params->ts_pid_pcr <= MPEG_PID_MAX) + } + if (params->ts_pid_pcr <= MPEG_PID_MAX) { + h->old_params.ts_pid_pcr = params->ts_pid_pcr; h->params.ts_pid_pcr = params->ts_pid_pcr; - if (params->ts_pid_video <= MPEG_PID_MAX) + } + if (params->ts_pid_video <= MPEG_PID_MAX) { + h->old_params.ts_pid_video = params->ts_pid_video; h->params.ts_pid_video = params->ts_pid_video; - if (params->ts_pid_audio <= MPEG_PID_MAX) + } + if (params->ts_pid_audio <= MPEG_PID_MAX) { + h->old_params.ts_pid_audio = params->ts_pid_audio; h->params.ts_pid_audio = params->ts_pid_audio; + } /* check bitrate parameters */ if ((params->vi_bitrate.mode == V4L2_BITRATE_CBR) || - (params->vi_bitrate.mode == V4L2_BITRATE_VBR)) - h->params.vi_bitrate.mode = params->vi_bitrate.mode; + (params->vi_bitrate.mode == V4L2_BITRATE_VBR)) { + h->old_params.vi_bitrate.mode = params->vi_bitrate.mode; + h->params.vi_bitrate_mode = (params->vi_bitrate.mode == V4L2_BITRATE_VBR) ? + V4L2_MPEG_VIDEO_BITRATE_MODE_VBR : V4L2_MPEG_VIDEO_BITRATE_MODE_CBR; + } if (params->vi_bitrate.mode != V4L2_BITRATE_NONE) - h->params.st_bitrate.target = params->st_bitrate.target; + h->old_params.st_bitrate.target = params->st_bitrate.target; if (params->vi_bitrate.mode != V4L2_BITRATE_NONE) - h->params.vi_bitrate.target = params->vi_bitrate.target; + h->old_params.vi_bitrate.target = params->vi_bitrate.target; if (params->vi_bitrate.mode == V4L2_BITRATE_VBR) - h->params.vi_bitrate.max = params->vi_bitrate.max; + h->old_params.vi_bitrate.max = params->vi_bitrate.max; if (params->au_bitrate.mode != V4L2_BITRATE_NONE) - h->params.au_bitrate.target = params->au_bitrate.target; + h->old_params.au_bitrate.target = params->au_bitrate.target; /* aspect ratio */ if (params->vi_aspect_ratio == V4L2_MPEG_ASPECT_4_3 || - params->vi_aspect_ratio == V4L2_MPEG_ASPECT_16_9) - h->params.vi_aspect_ratio = params->vi_aspect_ratio; + params->vi_aspect_ratio == V4L2_MPEG_ASPECT_16_9) { + h->old_params.vi_aspect_ratio = params->vi_aspect_ratio; + if (params->vi_aspect_ratio == V4L2_MPEG_ASPECT_4_3) + h->params.vi_aspect = V4L2_MPEG_VIDEO_ASPECT_4x3; + else + h->params.vi_aspect = V4L2_MPEG_VIDEO_ASPECT_16x9; + } /* range checks */ - if (h->params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX) - h->params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX; - if (h->params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX) - h->params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX; - if (h->params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX) - h->params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX; - if (h->params.au_bitrate.target <= 256) - h->params.au_bitrate.target = 256; + if (h->old_params.st_bitrate.target > MPEG_TOTAL_TARGET_BITRATE_MAX) + h->old_params.st_bitrate.target = MPEG_TOTAL_TARGET_BITRATE_MAX; + if (h->old_params.vi_bitrate.target > MPEG_VIDEO_TARGET_BITRATE_MAX) + h->old_params.vi_bitrate.target = MPEG_VIDEO_TARGET_BITRATE_MAX; + if (h->old_params.vi_bitrate.max > MPEG_VIDEO_MAX_BITRATE_MAX) + h->old_params.vi_bitrate.max = MPEG_VIDEO_MAX_BITRATE_MAX; + h->params.vi_bitrate = params->vi_bitrate.target; + h->params.vi_bitrate_peak = params->vi_bitrate.max; + if (h->old_params.au_bitrate.target <= 256) { + h->old_params.au_bitrate.target = 256; + h->params.au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_256K; + } + else { + h->old_params.au_bitrate.target = 384; + h->params.au_l2_bitrate = V4L2_MPEG_AUDIO_L2_BITRATE_384K; + } +} + +static int handle_ctrl(struct saa6752hs_mpeg_params *params, + struct v4l2_ext_control *ctrl, unsigned int cmd) +{ + int old = 0, new; + int set = (cmd == VIDIOC_S_EXT_CTRLS); + + new = ctrl->value; + switch (ctrl->id) { + case V4L2_CID_MPEG_STREAM_TYPE: + old = V4L2_MPEG_STREAM_TYPE_MPEG2_TS; + if (set && new != old) + return -ERANGE; + new = old; + break; + case V4L2_CID_MPEG_STREAM_PID_PMT: + old = params->ts_pid_pmt; + if (set && new > MPEG_PID_MAX) + return -ERANGE; + if (new > MPEG_PID_MAX) + new = MPEG_PID_MAX; + params->ts_pid_pmt = new; + break; + case V4L2_CID_MPEG_STREAM_PID_AUDIO: + old = params->ts_pid_audio; + if (set && new > MPEG_PID_MAX) + return -ERANGE; + if (new > MPEG_PID_MAX) + new = MPEG_PID_MAX; + params->ts_pid_audio = new; + break; + case V4L2_CID_MPEG_STREAM_PID_VIDEO: + old = params->ts_pid_video; + if (set && new > MPEG_PID_MAX) + return -ERANGE; + if (new > MPEG_PID_MAX) + new = MPEG_PID_MAX; + params->ts_pid_video = new; + break; + case V4L2_CID_MPEG_STREAM_PID_PCR: + old = params->ts_pid_pcr; + if (set && new > MPEG_PID_MAX) + return -ERANGE; + if (new > MPEG_PID_MAX) + new = MPEG_PID_MAX; + params->ts_pid_pcr = new; + break; + case V4L2_CID_MPEG_AUDIO_ENCODING: + old = V4L2_MPEG_AUDIO_ENCODING_LAYER_2; + if (set && new != old) + return -ERANGE; + new = old; + break; + case V4L2_CID_MPEG_AUDIO_L2_BITRATE: + old = params->au_l2_bitrate; + if (set && new != V4L2_MPEG_AUDIO_L2_BITRATE_256K && + new != V4L2_MPEG_AUDIO_L2_BITRATE_384K) + return -ERANGE; + if (new <= V4L2_MPEG_AUDIO_L2_BITRATE_256K) + new = V4L2_MPEG_AUDIO_L2_BITRATE_256K; + else + new = V4L2_MPEG_AUDIO_L2_BITRATE_384K; + params->au_l2_bitrate = new; + break; + case V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ: + old = V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000; + if (set && new != old) + return -ERANGE; + new = old; + break; + case V4L2_CID_MPEG_VIDEO_ENCODING: + old = V4L2_MPEG_VIDEO_ENCODING_MPEG_2; + if (set && new != old) + return -ERANGE; + new = old; + break; + case V4L2_CID_MPEG_VIDEO_ASPECT: + old = params->vi_aspect; + if (set && new != V4L2_MPEG_VIDEO_ASPECT_16x9 && + new != V4L2_MPEG_VIDEO_ASPECT_4x3) + return -ERANGE; + if (new != V4L2_MPEG_VIDEO_ASPECT_16x9) + new = V4L2_MPEG_VIDEO_ASPECT_4x3; + params->vi_aspect = new; + break; + case V4L2_CID_MPEG_VIDEO_BITRATE: + old = params->vi_bitrate * 1000; + new = 1000 * (new / 1000); + if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) + return -ERANGE; + if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) + new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000; + params->vi_bitrate = new / 1000; + break; + case V4L2_CID_MPEG_VIDEO_BITRATE_PEAK: + old = params->vi_bitrate_peak * 1000; + new = 1000 * (new / 1000); + if (set && new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) + return -ERANGE; + if (new > MPEG_VIDEO_TARGET_BITRATE_MAX * 1000) + new = MPEG_VIDEO_TARGET_BITRATE_MAX * 1000; + params->vi_bitrate_peak = new / 1000; + break; + case V4L2_CID_MPEG_VIDEO_BITRATE_MODE: + old = params->vi_bitrate_mode; + params->vi_bitrate_mode = new; + break; + default: + return -EINVAL; + } + if (cmd == VIDIOC_G_EXT_CTRLS) + ctrl->value = old; else - h->params.au_bitrate.target = 384; + ctrl->value = new; + return 0; } static int saa6752hs_init(struct i2c_client* client) @@ -395,22 +578,22 @@ static int saa6752hs_init(struct i2c_client* client) 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); @@ -441,7 +624,7 @@ 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; @@ -489,11 +672,11 @@ static int saa6752hs_init(struct i2c_client* client) buf[3] = 0x82; buf[4] = 0xB0; buf[5] = buf2[0]; - switch(h->params.vi_aspect_ratio) { - case V4L2_MPEG_ASPECT_16_9: + switch(h->params.vi_aspect) { + case V4L2_MPEG_VIDEO_ASPECT_16x9: buf[6] = buf2[1] | 0x40; break; - case V4L2_MPEG_ASPECT_4_3: + case V4L2_MPEG_VIDEO_ASPECT_4x3: default: buf[6] = buf2[1] & 0xBF; break; @@ -515,6 +698,7 @@ static int saa6752hs_attach(struct i2c_adapter *adap, int addr, int kind) return -ENOMEM; h->client = client_template; h->params = param_defaults; + h->old_params = old_param_defaults; h->client.adapter = adap; h->client.addr = addr; @@ -550,20 +734,45 @@ static int saa6752hs_command(struct i2c_client *client, unsigned int cmd, void *arg) { struct saa6752hs_state *h = i2c_get_clientdata(client); - struct v4l2_mpeg_compression *params = arg; + struct v4l2_ext_controls *ctrls = arg; + struct v4l2_mpeg_compression *old_params = arg; + struct saa6752hs_mpeg_params params; int err = 0; + int i; switch (cmd) { case VIDIOC_S_MPEGCOMP: - if (NULL == params) { + if (NULL == old_params) { /* apply settings and start encoder */ saa6752hs_init(client); break; } - saa6752hs_set_params(client, params); + saa6752hs_old_set_params(client, old_params); /* fall through */ case VIDIOC_G_MPEGCOMP: - *params = h->params; + *old_params = h->old_params; + break; + case VIDIOC_S_EXT_CTRLS: + if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) + return -EINVAL; + if (ctrls->count == 0) { + /* apply settings and start encoder */ + saa6752hs_init(client); + break; + } + /* fall through */ + case VIDIOC_TRY_EXT_CTRLS: + case VIDIOC_G_EXT_CTRLS: + if (ctrls->ctrl_class != V4L2_CTRL_CLASS_MPEG) + return -EINVAL; + params = h->params; + for (i = 0; i < ctrls->count; i++) { + if ((err = handle_ctrl(¶ms, ctrls->controls + i, cmd))) { + ctrls->error_idx = i; + return err; + } + } + h->params = params; break; case VIDIOC_G_FMT: { |