+++ /dev/null
-/* $Id$ */
-
-/***
- This file is part of polypaudio.
-
- polypaudio 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 of the License,
- or (at your option) any later version.
-
- polypaudio 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
- General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with polypaudio; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <assert.h>
-#include <sys/soundcard.h>
-#include <sys/ioctl.h>
-#include <stdio.h>
-#include <errno.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "oss-util.h"
-#include "util.h"
-#include "log.h"
-
-int pa_oss_open(const char *device, int *mode, int* pcaps) {
- int fd = -1;
- assert(device && mode && (*mode == O_RDWR || *mode == O_RDONLY || *mode == O_WRONLY));
-
- if (*mode == O_RDWR) {
- if ((fd = open(device, O_RDWR|O_NDELAY)) >= 0) {
- int dcaps, *tcaps;
- ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0);
-
- tcaps = pcaps ? pcaps : &dcaps;
-
- if (ioctl(fd, SNDCTL_DSP_GETCAPS, tcaps) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
- goto fail;
- }
-
- if (*tcaps & DSP_CAP_DUPLEX)
- return fd;
-
- goto fail;
- }
-
- if ((fd = open(device, (*mode = O_WRONLY)|O_NDELAY)) < 0) {
- if ((fd = open(device, (*mode = O_RDONLY)|O_NDELAY)) < 0) {
- pa_log(__FILE__": open('%s'): %s\n", device, strerror(errno));
- goto fail;
- }
- }
- } else {
- if ((fd = open(device, *mode|O_NDELAY)) < 0) {
- pa_log(__FILE__": open('%s'): %s\n", device, strerror(errno));
- goto fail;
- }
- }
-
- if (pcaps) {
- if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_GETCAPS: %s\n", strerror(errno));
- goto fail;
- }
- }
-
- pa_fd_set_cloexec(fd, 1);
-
- return fd;
-
-fail:
- if (fd >= 0)
- close(fd);
- return -1;
-}
-
-int pa_oss_auto_format(int fd, pa_sample_spec *ss) {
- int format, channels, speed, reqformat;
- static const int format_trans[PA_SAMPLE_MAX] = {
- [PA_SAMPLE_U8] = AFMT_U8,
- [PA_SAMPLE_ALAW] = AFMT_A_LAW,
- [PA_SAMPLE_ULAW] = AFMT_MU_LAW,
- [PA_SAMPLE_S16LE] = AFMT_S16_LE,
- [PA_SAMPLE_S16BE] = AFMT_S16_BE,
- [PA_SAMPLE_FLOAT32LE] = AFMT_QUERY, /* not supported */
- [PA_SAMPLE_FLOAT32BE] = AFMT_QUERY, /* not supported */
- };
-
- assert(fd >= 0 && ss);
-
- reqformat = format = format_trans[ss->format];
- if (reqformat == AFMT_QUERY || ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != reqformat) {
- format = AFMT_S16_NE;
- if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != AFMT_S16_NE) {
- int f = AFMT_S16_NE == AFMT_S16_LE ? AFMT_S16_BE : AFMT_S16_LE;
- format = f;
- if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != f) {
- format = AFMT_U8;
- if (ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != AFMT_U8) {
- pa_log(__FILE__": SNDCTL_DSP_SETFMT: %s\n", format != AFMT_U8 ? "No supported sample format" : strerror(errno));
- return -1;
- } else
- ss->format = PA_SAMPLE_U8;
- } else
- ss->format = f == AFMT_S16_LE ? PA_SAMPLE_S16LE : PA_SAMPLE_S16BE;
- } else
- ss->format = PA_SAMPLE_S16NE;
- }
-
- channels = ss->channels;
- if (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_CHANNELS: %s\n", strerror(errno));
- return -1;
- }
- assert(channels);
- ss->channels = channels;
-
- speed = ss->rate;
- if (ioctl(fd, SNDCTL_DSP_SPEED, &speed) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_SPEED: %s\n", strerror(errno));
- return -1;
- }
- assert(speed);
- ss->rate = speed;
-
- return 0;
-}
-
-static int simple_log2(int v) {
- int k = 0;
-
- for (;;) {
- v >>= 1;
- if (!v) break;
- k++;
- }
-
- return k;
-}
-
-int pa_oss_set_fragments(int fd, int nfrags, int frag_size) {
- int arg;
- arg = ((int) nfrags << 16) | simple_log2(frag_size);
-
- if (ioctl(fd, SNDCTL_DSP_SETFRAGMENT, &arg) < 0) {
- pa_log(__FILE__": SNDCTL_DSP_SETFRAGMENT: %s\n", strerror(errno));
- return -1;
- }
-
- return 0;
-}