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New hw_params implementation

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This commit is contained in:
Abramo Bagnara 2000-12-21 20:44:10 +00:00
parent 2fe1219099
commit 8dd927e97f
28 changed files with 3550 additions and 1899 deletions
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94
src/pcm/pcm_linear.c
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@ -72,32 +72,50 @@ static void linear_transfer(const snd_pcm_channel_area_t *src_areas, size_t src_
}
}
static int snd_pcm_linear_hw_info(snd_pcm_t *pcm, snd_pcm_hw_info_t * info)
static int snd_pcm_linear_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_linear_t *linear = pcm->private;
unsigned int format_mask, access_mask;
snd_pcm_t *slave = linear->plug.slave;
int err;
info->access_mask &= (SND_PCM_ACCBIT_MMAP_INTERLEAVED |
SND_PCM_ACCBIT_RW_INTERLEAVED |
SND_PCM_ACCBIT_MMAP_NONINTERLEAVED |
SND_PCM_ACCBIT_RW_NONINTERLEAVED);
access_mask = info->access_mask;
if (access_mask == 0)
return -EINVAL;
info->format_mask &= SND_PCM_FMTBIT_LINEAR;
format_mask = info->format_mask;
if (format_mask == 0)
return -EINVAL;
info->format_mask = 1U << linear->sformat;
info->access_mask = SND_PCM_ACCBIT_MMAP;
err = snd_pcm_hw_info(linear->plug.slave, info);
info->format_mask = format_mask;
info->access_mask = access_mask;
snd_pcm_hw_params_t sparams;
mask_t *access_mask = alloca(mask_sizeof());
mask_t *format_mask = alloca(mask_sizeof());
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(access_mask, SND_PCM_ACCBIT_PLUGIN);
mask_load(format_mask, SND_PCM_FMTBIT_LINEAR);
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
err = _snd_pcm_hw_params_mask(params, 1, SND_PCM_HW_PARAM_ACCESS,
access_mask);
if (err < 0)
return err;
info->info &= ~(SND_PCM_INFO_MMAP | SND_PCM_INFO_MMAP_VALID);
snd_pcm_hw_info_complete(info);
err = _snd_pcm_hw_params_mask(params, 1, SND_PCM_HW_PARAM_FORMAT,
format_mask);
if (err < 0)
return err;
err = _snd_pcm_hw_params_set(params, 1, SND_PCM_HW_PARAM_SUBFORMAT,
SND_PCM_SUBFORMAT_STD);
if (err < 0)
return err;
_snd_pcm_hw_params_any(&sparams);
_snd_pcm_hw_params_mask(&sparams, 0, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
_snd_pcm_hw_params_set(&sparams, 0, SND_PCM_HW_PARAM_FORMAT,
linear->sformat);
_snd_pcm_hw_params_set(&sparams, 0, SND_PCM_HW_PARAM_SUBFORMAT,
SND_PCM_SUBFORMAT_STD);
err = snd_pcm_hw_refine2(params, &sparams,
snd_pcm_hw_refine, slave,
SND_PCM_HW_PARBIT_CHANNELS |
SND_PCM_HW_PARBIT_RATE |
SND_PCM_HW_PARBIT_FRAGMENT_SIZE |
SND_PCM_HW_PARBIT_BUFFER_SIZE |
SND_PCM_HW_PARBIT_FRAGMENTS |
SND_PCM_HW_PARBIT_FRAGMENT_LENGTH |
SND_PCM_HW_PARBIT_BUFFER_LENGTH);
if (err < 0)
return err;
params->info &= ~(SND_PCM_INFO_MMAP | SND_PCM_INFO_MMAP_VALID);
return 0;
}
@ -105,22 +123,36 @@ static int snd_pcm_linear_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_linear_t *linear = pcm->private;
snd_pcm_t *slave = linear->plug.slave;
snd_pcm_hw_info_t sinfo;
snd_pcm_hw_params_t sparams;
int err;
snd_pcm_hw_params_to_info(params, &sinfo);
sinfo.format_mask = 1 << linear->sformat;
sinfo.access_mask = SND_PCM_ACCBIT_MMAP;
err = snd_pcm_hw_params_info(slave, &sparams, &sinfo);
params->fail_mask = sparams.fail_mask;
snd_pcm_hw_params_t sparams;
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
_snd_pcm_hw_params_any(&sparams);
_snd_pcm_hw_params_mask(&sparams, 0, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
_snd_pcm_hw_params_set(&sparams, 0, SND_PCM_HW_PARAM_FORMAT,
linear->sformat);
_snd_pcm_hw_params_set(&sparams, 0, SND_PCM_HW_PARAM_SUBFORMAT,
SND_PCM_SUBFORMAT_STD);
err = snd_pcm_hw_params2(params, &sparams,
snd_pcm_hw_params, slave,
SND_PCM_HW_PARBIT_CHANNELS |
SND_PCM_HW_PARBIT_RATE |
SND_PCM_HW_PARBIT_FRAGMENT_SIZE |
SND_PCM_HW_PARBIT_BUFFER_SIZE |
SND_PCM_HW_PARBIT_FRAGMENTS |
SND_PCM_HW_PARBIT_FRAGMENT_LENGTH |
SND_PCM_HW_PARBIT_BUFFER_LENGTH);
if (err < 0)
return err;
params->info &= ~(SND_PCM_INFO_MMAP | SND_PCM_INFO_MMAP_VALID);
if (pcm->stream == SND_PCM_STREAM_PLAYBACK)
linear->conv_idx = conv_index(params->format,
linear->conv_idx = conv_index(snd_pcm_hw_params_value(params, SND_PCM_HW_PARAM_FORMAT),
linear->sformat);
else
linear->conv_idx = conv_index(linear->sformat,
params->format);
snd_pcm_hw_params_value(params, SND_PCM_HW_PARAM_FORMAT));
return 0;
}
@ -208,7 +240,7 @@ static void snd_pcm_linear_dump(snd_pcm_t *pcm, FILE *fp)
snd_pcm_ops_t snd_pcm_linear_ops = {
close: snd_pcm_plugin_close,
info: snd_pcm_plugin_info,
hw_info: snd_pcm_linear_hw_info,
hw_refine: snd_pcm_linear_hw_refine,
hw_params: snd_pcm_linear_hw_params,
sw_params: snd_pcm_plugin_sw_params,
dig_info: snd_pcm_plugin_dig_info,