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Diffstat (limited to 'drivers/media/video/saa7134/saa6752hs.c')
-rw-r--r--drivers/media/video/saa7134/saa6752hs.c315
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..de7b9e6e932a 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, 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(&params, ctrls->controls + i, cmd))) {
+ ctrls->error_idx = i;
+ return err;
+ }
+ }
+ h->params = params;
break;
case VIDIOC_G_FMT:
{
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-18 11:07:10 +0100