/** * \file pcm/pcm_generic.c * \ingroup PCM * \brief PCM Interface * \author Jaroslav Kysela * \date 2004 */ /* * PCM - Common generic plugin code * Copyright (c) 2004 by Jaroslav Kysela * * * 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 #include #include #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) { return snd_pcm_channel_info_shm(pcm, info, -1); } int snd_pcm_generic_channel_info_slave(snd_pcm_t *pcm, snd_pcm_channel_info_t *info) { snd_pcm_generic_t *generic = pcm->private_data; return snd_pcm_channel_info(generic->slave, info); } 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_poll_ask(snd_pcm_t *pcm) { snd_pcm_generic_t *generic = pcm->private_data; if (generic->slave->fast_ops->poll_ask) return generic->slave->fast_ops->poll_ask(generic->slave->fast_op_arg); return 0; } int snd_pcm_generic_link_fd(snd_pcm_t *pcm, int *fds, int count, int (**failed)(snd_pcm_t *, int)) { snd_pcm_generic_t *generic = pcm->private_data; if (generic->slave->fast_ops->link_fd) return generic->slave->fast_ops->link_fd(generic->slave->fast_op_arg, fds, count, failed); return -ENOSYS; } 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_link2(snd_pcm_t *pcm1, snd_pcm_t *pcm2) { int fds1[16], fds2[16]; int (*failed1)(snd_pcm_t *, int) = NULL; int (*failed2)(snd_pcm_t *, int) = NULL; int count1 = _snd_pcm_link_descriptors(pcm1, fds1, 16, &failed1); int count2 = _snd_pcm_link_descriptors(pcm2, fds2, 16, &failed2); int i, err = 0; if (count1 < 0) return count1; if (count2 < 0) return count2; for (i = 1; i < count1; i++) { if (fds1[i] < 0) return 0; if (ioctl(fds1[0], SNDRV_PCM_IOCTL_LINK, fds1[i]) < 0) { if (failed1 != NULL) { err = failed1(pcm2, fds1[i]); } else { SYSMSG("SNDRV_PCM_IOCTL_LINK failed"); err = -errno; } } } for (i = 0; i < count2; i++) { if (fds2[i] < 0) return 0; if (ioctl(fds1[0], SNDRV_PCM_IOCTL_LINK, fds2[i]) < 0) { if (failed1 != NULL) { err = failed2(pcm2, fds2[i]); } else { SYSMSG("SNDRV_PCM_IOCTL_LINK failed"); err = -errno; } } } return err; } 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 ATTRIBUTE_UNUSED) { return 0; } int snd_pcm_generic_munmap(snd_pcm_t *pcm ATTRIBUTE_UNUSED) { return 0; } #endif /* DOC_HIDDEN */