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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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82
src/pcm/pcm_shm.c
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@ -42,7 +42,6 @@
typedef struct {
int socket;
volatile snd_pcm_shm_ctrl_t *ctrl;
unsigned int access_mask;
} snd_pcm_shm_t;
int receive_fd(int socket, void *data, size_t len, int *fd)
@ -148,49 +147,60 @@ static int snd_pcm_shm_info(snd_pcm_t *pcm, snd_pcm_info_t * info)
return err;
}
static int snd_pcm_shm_hw_info(snd_pcm_t *pcm, snd_pcm_hw_info_t * info)
static int _snd_pcm_shm_hw_refine(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params ATTRIBUTE_UNUSED)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
int err;
unsigned int access_mask = info->access_mask;
ctrl->cmd = SND_PCM_IOCTL_HW_INFO;
ctrl->u.hw_info = *info;
ctrl->u.hw_info.access_mask = SND_PCM_ACCBIT_MMAP;
err = snd_pcm_shm_action(pcm);
if (err < 0)
return err;
access_mask &= (SND_PCM_ACCESS_RW_INTERLEAVED |
SND_PCM_ACCESS_RW_NONINTERLEAVED |
ctrl->u.hw_info.access_mask);
if (!access_mask)
return -EINVAL;
*info = ctrl->u.hw_info;
shm->access_mask = info->access_mask;
info->access_mask = access_mask;
return 0;
ctrl->cmd = SND_PCM_IOCTL_HW_REFINE;
return snd_pcm_shm_action(pcm);
}
static int snd_pcm_shm_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
snd_pcm_hw_params_t *sparams = (snd_pcm_hw_params_t *) &ctrl->u.hw_refine;
const mask_t *access_mask = snd_pcm_hw_params_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
if (!mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) &&
!mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
mask_intersect(saccess_mask, access_mask);
_snd_pcm_hw_params_any(sparams);
_snd_pcm_hw_params_mask(sparams, 0, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
return snd_pcm_hw_refine2(params, sparams,
_snd_pcm_shm_hw_refine, pcm,
~SND_PCM_HW_PARBIT_ACCESS);
}
static int _snd_pcm_shm_hw_params(snd_pcm_t *pcm,
snd_pcm_hw_params_t *params ATTRIBUTE_UNUSED)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
ctrl->cmd = SND_PCM_IOCTL_HW_PARAMS;
return snd_pcm_shm_action(pcm);
}
static int snd_pcm_shm_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t * params)
{
snd_pcm_shm_t *shm = pcm->private;
volatile snd_pcm_shm_ctrl_t *ctrl = shm->ctrl;
unsigned int access = params->access;
int err;
ctrl->cmd = SND_PCM_IOCTL_HW_PARAMS;
ctrl->u.hw_params = *params;
if (shm->access_mask & SND_PCM_ACCBIT_MMAP_INTERLEAVED)
ctrl->u.hw_params.access = SND_PCM_ACCESS_MMAP_INTERLEAVED;
else if (shm->access_mask & SND_PCM_ACCBIT_MMAP_NONINTERLEAVED)
ctrl->u.hw_params.access = SND_PCM_ACCESS_MMAP_NONINTERLEAVED;
else
assert(0);
err = snd_pcm_shm_action(pcm);
params->access = access;
*params = ctrl->u.hw_params;
if (err < 0)
return err;
return err;
snd_pcm_hw_params_t *sparams = (snd_pcm_hw_params_t *) &ctrl->u.hw_refine;
const mask_t *access_mask = snd_pcm_hw_params_value_mask(params, SND_PCM_HW_PARAM_ACCESS);
mask_t *saccess_mask = alloca(mask_sizeof());
mask_load(saccess_mask, SND_PCM_ACCBIT_MMAP);
if (!mask_test(access_mask, SND_PCM_ACCESS_RW_INTERLEAVED) &&
!mask_test(access_mask, SND_PCM_ACCESS_RW_NONINTERLEAVED))
mask_intersect(saccess_mask, access_mask);
_snd_pcm_hw_params_any(sparams);
_snd_pcm_hw_params_mask(sparams, 0, SND_PCM_HW_PARAM_ACCESS,
saccess_mask);
return snd_pcm_hw_params2(params, sparams,
_snd_pcm_shm_hw_params, pcm,
~SND_PCM_HW_PARBIT_ACCESS);
}
static int snd_pcm_shm_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t * params)
@ -461,7 +471,7 @@ static void snd_pcm_shm_dump(snd_pcm_t *pcm, FILE *fp)
snd_pcm_ops_t snd_pcm_shm_ops = {
close: snd_pcm_shm_close,
info: snd_pcm_shm_info,
hw_info: snd_pcm_shm_hw_info,
hw_refine: snd_pcm_shm_hw_refine,
hw_params: snd_pcm_shm_hw_params,
sw_params: snd_pcm_shm_sw_params,
dig_info: snd_pcm_shm_dig_info,