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/**
* \file pcm/pcm_generic.c
* \ingroup PCM
* \brief PCM Interface
* \author Jaroslav Kysela <perex@perex.cz>
* \date 2004
*/
/*
* PCM - Common generic plugin code
* Copyright (c) 2004 by Jaroslav Kysela <perex@perex.cz>
*
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <sys/shm.h>
#include <sys/ioctl.h>
#include <limits.h>
#include "pcm_local.h"
#include "pcm_generic.h"
#ifndef DOC_HIDDEN
int snd_pcm_generic_close(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
int err = 0;
if (generic->close_slave)
err = snd_pcm_close(generic->slave);
free(generic);
return 0;
}
int snd_pcm_generic_nonblock(snd_pcm_t *pcm, int nonblock)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_nonblock(generic->slave, nonblock);
}
int snd_pcm_generic_async(snd_pcm_t *pcm, int sig, pid_t pid)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_async(generic->slave, sig, pid);
}
int snd_pcm_generic_poll_descriptors_count(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_poll_descriptors_count(generic->slave);
}
int snd_pcm_generic_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_poll_descriptors(generic->slave, pfds, space);
}
int snd_pcm_generic_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_poll_descriptors_revents(generic->slave, pfds, nfds, revents);
}
int snd_pcm_generic_info(snd_pcm_t *pcm, snd_pcm_info_t * info)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_info(generic->slave, info);
}
int snd_pcm_generic_hw_free(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_hw_free(generic->slave);
}
int snd_pcm_generic_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_sw_params(generic->slave, params);
}
int snd_pcm_generic_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_hw_refine(generic->slave, params);
}
int snd_pcm_generic_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
{
snd_pcm_generic_t *generic = pcm->private_data;
return _snd_pcm_hw_params(generic->slave, params);
}
int snd_pcm_generic_prepare(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_prepare(generic->slave);
}
int snd_pcm_generic_channel_info(snd_pcm_t *pcm, snd_pcm_channel_info_t *info)
{
snd_pcm_generic_t *generic = pcm->private_data;
if (pcm->mmap_shadow) {
/* No own buffer is required - the plugin won't change
* the data on the buffer, or do safely on-the-place
* conversion
*/
return snd_pcm_channel_info(generic->slave, info);
} else {
/* Allocate own buffer */
return snd_pcm_channel_info_shm(pcm, info, -1);
}
}
int snd_pcm_generic_status(snd_pcm_t *pcm, snd_pcm_status_t * status)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_status(generic->slave, status);
}
snd_pcm_state_t snd_pcm_generic_state(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_state(generic->slave);
}
int snd_pcm_generic_hwsync(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_hwsync(generic->slave);
}
int snd_pcm_generic_reset(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_reset(generic->slave);
}
int snd_pcm_generic_start(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_start(generic->slave);
}
int snd_pcm_generic_drop(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_drop(generic->slave);
}
int snd_pcm_generic_drain(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_drain(generic->slave);
}
int snd_pcm_generic_pause(snd_pcm_t *pcm, int enable)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_pause(generic->slave, enable);
}
int snd_pcm_generic_resume(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_resume(generic->slave);
}
int snd_pcm_generic_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_delay(generic->slave, delayp);
}
snd_pcm_sframes_t snd_pcm_generic_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
{
snd_pcm_generic_t *generic = pcm->private_data;
return INTERNAL(snd_pcm_forward)(generic->slave, frames);
}
snd_pcm_sframes_t snd_pcm_generic_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_rewind(generic->slave, frames);
}
int snd_pcm_generic_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2)
{
snd_pcm_generic_t *generic = pcm1->private_data;
if (generic->slave->fast_ops->link)
return generic->slave->fast_ops->link(generic->slave->fast_op_arg, pcm2);
return -ENOSYS;
}
int snd_pcm_generic_link_slaves(snd_pcm_t *pcm, snd_pcm_t *master)
{
snd_pcm_generic_t *generic = pcm->private_data;
if (generic->slave->fast_ops->link_slaves)
return generic->slave->fast_ops->link_slaves(generic->slave->fast_op_arg, master);
return -ENOSYS;
}
int snd_pcm_generic_unlink(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
if (generic->slave->fast_ops->unlink)
return generic->slave->fast_ops->unlink(generic->slave->fast_op_arg);
return -ENOSYS;
}
snd_pcm_sframes_t snd_pcm_generic_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_writei(generic->slave, buffer, size);
}
snd_pcm_sframes_t snd_pcm_generic_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_writen(generic->slave, bufs, size);
}
snd_pcm_sframes_t snd_pcm_generic_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_readi(generic->slave, buffer, size);
}
snd_pcm_sframes_t snd_pcm_generic_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_readn(generic->slave, bufs, size);
}
snd_pcm_sframes_t snd_pcm_generic_mmap_commit(snd_pcm_t *pcm,
snd_pcm_uframes_t offset,
snd_pcm_uframes_t size)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_mmap_commit(generic->slave, offset, size);
}
snd_pcm_sframes_t snd_pcm_generic_avail_update(snd_pcm_t *pcm)
{
snd_pcm_generic_t *generic = pcm->private_data;
return snd_pcm_avail_update(generic->slave);
}
int snd_pcm_generic_mmap(snd_pcm_t *pcm)
{
if (pcm->mmap_shadow) {
/* Copy the slave mmapped buffer data */
snd_pcm_generic_t *generic = pcm->private_data;
pcm->mmap_channels = generic->slave->mmap_channels;
pcm->running_areas = generic->slave->running_areas;
pcm->stopped_areas = generic->slave->stopped_areas;
}
return 0;
}
int snd_pcm_generic_munmap(snd_pcm_t *pcm)
{
if (pcm->mmap_shadow) {
/* Clean up */
pcm->mmap_channels = NULL;
pcm->running_areas = NULL;
pcm->stopped_areas = NULL;
}
return 0;
}
#endif /* DOC_HIDDEN */
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