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alsa-lib/src/pcm/pcm_generic.h

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improved stream linking and plugin code cleanups - added link/unlink/link_fd fast_ops callbacks - moved code from snd_pcm_link to pcm_hw.c - moved "empty" routines pointing to slave to pcm_generic.c - introduced snd_pcm_generic_t
2005-01-20 15:07:51 +00:00
/*
* PCM - Common generic plugin code
* Copyright (c) 2004 by Jaroslav Kysela <perex@suse.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
*
*/
typedef struct {
snd_pcm_t *slave;
int close_slave;
} snd_pcm_generic_t;
int snd_pcm_generic_close(snd_pcm_t *pcm);
int snd_pcm_generic_nonblock(snd_pcm_t *pcm, int nonblock);
int snd_pcm_generic_async(snd_pcm_t *pcm, int sig, pid_t pid);
Add poll_descriptors and poll_descriptors_count callbacks Added poll_descriptors and poll_descriptors_count callbacks for multiple poll_fd's.
2005-05-18 10:45:06 +00:00
int snd_pcm_generic_poll_descriptors_count(snd_pcm_t *pcm);
int snd_pcm_generic_poll_descriptors(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int space);
improved stream linking and plugin code cleanups - added link/unlink/link_fd fast_ops callbacks - moved code from snd_pcm_link to pcm_hw.c - moved "empty" routines pointing to slave to pcm_generic.c - introduced snd_pcm_generic_t
2005-01-20 15:07:51 +00:00
int snd_pcm_generic_poll_revents(snd_pcm_t *pcm, struct pollfd *pfds, unsigned int nfds, unsigned short *revents);
int snd_pcm_generic_info(snd_pcm_t *pcm, snd_pcm_info_t * info);
int snd_pcm_generic_hw_free(snd_pcm_t *pcm);
int snd_pcm_generic_sw_params(snd_pcm_t *pcm, snd_pcm_sw_params_t *params);
int snd_pcm_generic_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
int snd_pcm_generic_hw_params(snd_pcm_t *pcm, snd_pcm_hw_params_t *params);
int snd_pcm_generic_channel_info(snd_pcm_t *pcm, snd_pcm_channel_info_t * info);
Fix buffer allocation and mmap with plugins Fixed the bug producing silent tones with some combinations of plugins. The internal buffer handling is now better (cleaner) integrated with snd_pcm_generic_*().
2005-09-02 16:36:40 +00:00
int snd_pcm_generic_channel_info_no_buffer(snd_pcm_t *pcm, snd_pcm_channel_info_t * info);
improved stream linking and plugin code cleanups - added link/unlink/link_fd fast_ops callbacks - moved code from snd_pcm_link to pcm_hw.c - moved "empty" routines pointing to slave to pcm_generic.c - introduced snd_pcm_generic_t
2005-01-20 15:07:51 +00:00
int snd_pcm_generic_status(snd_pcm_t *pcm, snd_pcm_status_t * status);
snd_pcm_state_t snd_pcm_generic_state(snd_pcm_t *pcm);
int snd_pcm_generic_prepare(snd_pcm_t *pcm);
int snd_pcm_generic_hwsync(snd_pcm_t *pcm);
int snd_pcm_generic_reset(snd_pcm_t *pcm);
int snd_pcm_generic_start(snd_pcm_t *pcm);
int snd_pcm_generic_drop(snd_pcm_t *pcm);
int snd_pcm_generic_drain(snd_pcm_t *pcm);
int snd_pcm_generic_pause(snd_pcm_t *pcm, int enable);
int snd_pcm_generic_resume(snd_pcm_t *pcm);
int snd_pcm_generic_delay(snd_pcm_t *pcm, snd_pcm_sframes_t *delayp);
snd_pcm_sframes_t snd_pcm_generic_forward(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
snd_pcm_sframes_t snd_pcm_generic_rewind(snd_pcm_t *pcm, snd_pcm_uframes_t frames);
The stream linking problem for pcm_multi.c should be fixed now - extended link_fd callback - added snd_pcm_generic_link2() - added _snd_pcm_link_descriptors()
2005-01-20 18:37:13 +00:00
int snd_pcm_generic_link_fd(snd_pcm_t *pcm, int *fds, int count, int (**failed)(snd_pcm_t *, int));
improved stream linking and plugin code cleanups - added link/unlink/link_fd fast_ops callbacks - moved code from snd_pcm_link to pcm_hw.c - moved "empty" routines pointing to slave to pcm_generic.c - introduced snd_pcm_generic_t
2005-01-20 15:07:51 +00:00
int snd_pcm_generic_link(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
The stream linking problem for pcm_multi.c should be fixed now - extended link_fd callback - added snd_pcm_generic_link2() - added _snd_pcm_link_descriptors()
2005-01-20 18:37:13 +00:00
int snd_pcm_generic_link2(snd_pcm_t *pcm1, snd_pcm_t *pcm2);
improved stream linking and plugin code cleanups - added link/unlink/link_fd fast_ops callbacks - moved code from snd_pcm_link to pcm_hw.c - moved "empty" routines pointing to slave to pcm_generic.c - introduced snd_pcm_generic_t
2005-01-20 15:07:51 +00:00
int snd_pcm_generic_unlink(snd_pcm_t *pcm);
snd_pcm_sframes_t snd_pcm_generic_writei(snd_pcm_t *pcm, const void *buffer, snd_pcm_uframes_t size);
snd_pcm_sframes_t snd_pcm_generic_writen(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t size);
snd_pcm_sframes_t snd_pcm_generic_readi(snd_pcm_t *pcm, void *buffer, snd_pcm_uframes_t size);
snd_pcm_sframes_t snd_pcm_generic_readn(snd_pcm_t *pcm, void **bufs, snd_pcm_uframes_t 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_sframes_t snd_pcm_generic_avail_update(snd_pcm_t *pcm);
int snd_pcm_generic_mmap(snd_pcm_t *pcm);
int snd_pcm_generic_munmap(snd_pcm_t *pcm);
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