diff options
Diffstat (limited to 'src/modules/oss-util.c')
| -rw-r--r-- | src/modules/oss-util.c | 299 |
1 files changed, 0 insertions, 299 deletions
diff --git a/src/modules/oss-util.c b/src/modules/oss-util.c deleted file mode 100644 index f4cc45de..00000000 --- a/src/modules/oss-util.c +++ /dev/null @@ -1,299 +0,0 @@ -/* $Id$ */ - -/*** - This file is part of PulseAudio. - - PulseAudio 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. - - PulseAudio 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 PulseAudio; 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 <pulsecore/core-error.h> -#include <pulsecore/core-util.h> -#include <pulsecore/log.h> - -#include "oss-util.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", pa_cstrerror(errno)); - goto fail; - } - - if (*tcaps & DSP_CAP_DUPLEX) - goto success; - - pa_log_warn(__FILE__": '%s' doesn't support full duplex", device); - - close(fd); - } - - 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", device, pa_cstrerror(errno)); - goto fail; - } - } - } else { - if ((fd = open(device, *mode|O_NDELAY)) < 0) { - pa_log(__FILE__": open('%s'): %s", device, pa_cstrerror(errno)); - goto fail; - } - } - -success: - - if (pcaps) { - if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) { - pa_log(__FILE__": SNDCTL_DSP_GETCAPS: %s", pa_cstrerror(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", format != AFMT_U8 ? "No supported sample format" : pa_cstrerror(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", pa_cstrerror(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", pa_cstrerror(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", pa_cstrerror(errno)); - return -1; - } - - return 0; -} - -static int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvolume *volume) { - char cv[PA_CVOLUME_SNPRINT_MAX]; - unsigned vol; - - assert(fd >= 0); - assert(ss); - assert(volume); - - if (ioctl(fd, mixer, &vol) < 0) - return -1; - - volume->values[0] = ((vol & 0xFF) * PA_VOLUME_NORM) / 100; - - if ((volume->channels = ss->channels) >= 2) - volume->values[1] = (((vol >> 8) & 0xFF) * PA_VOLUME_NORM) / 100; - - pa_log_debug(__FILE__": Read mixer settings: %s", pa_cvolume_snprint(cv, sizeof(cv), volume)); - return 0; -} - -static int pa_oss_set_volume(int fd, int mixer, const pa_sample_spec *ss, const pa_cvolume *volume) { - char cv[PA_CVOLUME_SNPRINT_MAX]; - unsigned vol; - pa_volume_t l, r; - - l = volume->values[0] > PA_VOLUME_NORM ? PA_VOLUME_NORM : volume->values[0]; - - vol = (l*100)/PA_VOLUME_NORM; - - if (ss->channels >= 2) { - r = volume->values[1] > PA_VOLUME_NORM ? PA_VOLUME_NORM : volume->values[1]; - vol |= ((r*100)/PA_VOLUME_NORM) << 8; - } - - if (ioctl(fd, mixer, &vol) < 0) - return -1; - - pa_log_debug(__FILE__": Wrote mixer settings: %s", pa_cvolume_snprint(cv, sizeof(cv), volume)); - return 0; -} - -int pa_oss_get_pcm_volume(int fd, const pa_sample_spec *ss, pa_cvolume *volume) { - return pa_oss_get_volume(fd, SOUND_MIXER_READ_PCM, ss, volume); -} - -int pa_oss_set_pcm_volume(int fd, const pa_sample_spec *ss, const pa_cvolume *volume) { - return pa_oss_set_volume(fd, SOUND_MIXER_WRITE_PCM, ss, volume); -} - -int pa_oss_get_input_volume(int fd, const pa_sample_spec *ss, pa_cvolume *volume) { - return pa_oss_get_volume(fd, SOUND_MIXER_READ_IGAIN, ss, volume); -} - -int pa_oss_set_input_volume(int fd, const pa_sample_spec *ss, const pa_cvolume *volume) { - return pa_oss_set_volume(fd, SOUND_MIXER_WRITE_IGAIN, ss, volume); -} - -int pa_oss_get_hw_description(const char *dev, char *name, size_t l) { - FILE *f; - const char *e = NULL; - int n, r = -1; - int b = 0; - - if (strncmp(dev, "/dev/dsp", 8) == 0) - e = dev+8; - else if (strncmp(dev, "/dev/adsp", 9) == 0) - e = dev+9; - else - return -1; - - if (*e == 0) - n = 0; - else if (*e >= '0' && *e <= '9' && *(e+1) == 0) - n = *e - '0'; - else - return -1; - - if (!(f = fopen("/dev/sndstat", "r")) && - !(f = fopen("/proc/sndstat", "r")) && - !(f = fopen("/proc/asound/oss/sndstat", "r"))) { - - if (errno != ENOENT) - pa_log_warn(__FILE__": failed to open OSS sndstat device: %s", pa_cstrerror(errno)); - - return -1; - } - - while (!feof(f)) { - char line[64]; - int device; - - if (!fgets(line, sizeof(line), f)) - break; - - line[strcspn(line, "\r\n")] = 0; - - if (!b) { - b = strcmp(line, "Audio devices:") == 0; - continue; - } - - if (line[0] == 0) - break; - - if (sscanf(line, "%i: ", &device) != 1) - continue; - - if (device == n) { - char *k = strchr(line, ':'); - assert(k); - k++; - k += strspn(k, " "); - - if (pa_endswith(k, " (DUPLEX)")) - k[strlen(k)-9] = 0; - - pa_strlcpy(name, k, l); - r = 0; - break; - } - } - - fclose(f); - return r; -} |