diff options
Diffstat (limited to 'src/modules/oss-util.c')
| -rw-r--r-- | src/modules/oss-util.c | 193 |
1 files changed, 119 insertions, 74 deletions
diff --git a/src/modules/oss-util.c b/src/modules/oss-util.c index 0aaf6971..2791e165 100644 --- a/src/modules/oss-util.c +++ b/src/modules/oss-util.c @@ -1,18 +1,19 @@ -/* $Id$ */ - /*** This file is part of PulseAudio. - + + Copyright 2004-2006 Lennart Poettering + Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB + 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 @@ -23,7 +24,6 @@ #include <config.h> #endif -#include <assert.h> #include <sys/soundcard.h> #include <sys/ioctl.h> #include <stdio.h> @@ -34,9 +34,11 @@ #include <sys/stat.h> #include <fcntl.h> +#include <pulse/xmalloc.h> #include <pulsecore/core-error.h> #include <pulsecore/core-util.h> #include <pulsecore/log.h> +#include <pulsecore/macro.h> #include "oss-util.h" @@ -44,63 +46,62 @@ int pa_oss_open(const char *device, int *mode, int* pcaps) { int fd = -1; int caps; - assert(device && mode && (*mode == O_RDWR || *mode == O_RDONLY || *mode == O_WRONLY)); + pa_assert(device); + pa_assert(mode); + pa_assert(*mode == O_RDWR || *mode == O_RDONLY || *mode == O_WRONLY); if(!pcaps) pcaps = ∩︀ - + if (*mode == O_RDWR) { - if ((fd = open(device, O_RDWR|O_NDELAY)) >= 0) { - int dcaps, *tcaps; + if ((fd = open(device, O_RDWR|O_NDELAY|O_NOCTTY)) >= 0) { ioctl(fd, SNDCTL_DSP_SETDUPLEX, 0); - tcaps = pcaps ? pcaps : &dcaps; - - if (ioctl(fd, SNDCTL_DSP_GETCAPS, tcaps) < 0) { + if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) { pa_log("SNDCTL_DSP_GETCAPS: %s", pa_cstrerror(errno)); goto fail; } - if (*tcaps & DSP_CAP_DUPLEX) + if (*pcaps & DSP_CAP_DUPLEX) goto success; pa_log_warn("'%s' doesn't support full duplex", device); - close(fd); + pa_close(fd); } - - if ((fd = open(device, (*mode = O_WRONLY)|O_NDELAY)) < 0) { - if ((fd = open(device, (*mode = O_RDONLY)|O_NDELAY)) < 0) { + + if ((fd = open(device, (*mode = O_WRONLY)|O_NDELAY|O_NOCTTY)) < 0) { + if ((fd = open(device, (*mode = O_RDONLY)|O_NDELAY|O_NOCTTY)) < 0) { pa_log("open('%s'): %s", device, pa_cstrerror(errno)); goto fail; } } } else { - if ((fd = open(device, *mode|O_NDELAY)) < 0) { + if ((fd = open(device, *mode|O_NDELAY|O_NOCTTY)) < 0) { pa_log("open('%s'): %s", device, pa_cstrerror(errno)); goto fail; } - } - -success: + } *pcaps = 0; - + if (ioctl(fd, SNDCTL_DSP_GETCAPS, pcaps) < 0) { pa_log("SNDCTL_DSP_GETCAPS: %s", pa_cstrerror(errno)); goto fail; } - + +success: + pa_log_debug("capabilities:%s%s%s%s%s%s%s%s%s%s%s%s%s%s", *pcaps & DSP_CAP_BATCH ? " BATCH" : "", #ifdef DSP_CAP_BIND *pcaps & DSP_CAP_BIND ? " BIND" : "", #else - "", + "", #endif *pcaps & DSP_CAP_COPROC ? " COPROC" : "", *pcaps & DSP_CAP_DUPLEX ? " DUPLEX" : "", -#ifdef DSP_CAP_FREERATE +#ifdef DSP_CAP_FREERATE *pcaps & DSP_CAP_FREERATE ? " FREERATE" : "", #else "", @@ -119,7 +120,7 @@ success: #ifdef DSP_CAP_MULTI *pcaps & DSP_CAP_MULTI ? " MULTI" : "", #else - "", + "", #endif #ifdef DSP_CAP_OUTPUT *pcaps & DSP_CAP_OUTPUT ? " OUTPUT" : "", @@ -139,20 +140,20 @@ success: #endif *pcaps & DSP_CAP_TRIGGER ? " TRIGGER" : ""); - pa_fd_set_cloexec(fd, 1); - + pa_make_fd_cloexec(fd); + return fd; fail: if (fd >= 0) - close(fd); + pa_close(fd); return -1; } int pa_oss_auto_format(int fd, pa_sample_spec *ss) { int format, channels, speed, reqformat; pa_sample_format_t orig_format; - + static const int format_trans[PA_SAMPLE_MAX] = { [PA_SAMPLE_U8] = AFMT_U8, [PA_SAMPLE_ALAW] = AFMT_A_LAW, @@ -161,12 +162,15 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss) { [PA_SAMPLE_S16BE] = AFMT_S16_BE, [PA_SAMPLE_FLOAT32LE] = AFMT_QUERY, /* not supported */ [PA_SAMPLE_FLOAT32BE] = AFMT_QUERY, /* not supported */ + [PA_SAMPLE_S32LE] = AFMT_QUERY, /* not supported */ + [PA_SAMPLE_S32BE] = AFMT_QUERY, /* not supported */ }; - assert(fd >= 0 && ss); + pa_assert(fd >= 0); + pa_assert(ss); orig_format = ss->format; - + reqformat = format = format_trans[ss->format]; if (reqformat == AFMT_QUERY || ioctl(fd, SNDCTL_DSP_SETFMT, &format) < 0 || format != reqformat) { format = AFMT_S16_NE; @@ -190,13 +194,13 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss) { pa_log_warn("device doesn't support sample format %s, changed to %s.", pa_sample_format_to_string(orig_format), pa_sample_format_to_string(ss->format)); - + channels = ss->channels; if (ioctl(fd, SNDCTL_DSP_CHANNELS, &channels) < 0) { pa_log("SNDCTL_DSP_CHANNELS: %s", pa_cstrerror(errno)); return -1; } - assert(channels > 0); + pa_assert(channels > 0); if (ss->channels != channels) { pa_log_warn("device doesn't support %i channels, using %i channels.", ss->channels, channels); @@ -208,7 +212,7 @@ int pa_oss_auto_format(int fd, pa_sample_spec *ss) { pa_log("SNDCTL_DSP_SPEED: %s", pa_cstrerror(errno)); return -1; } - assert(speed > 0); + pa_assert(speed > 0); if (ss->rate != (unsigned) speed) { pa_log_warn("device doesn't support %i Hz, changed to %i Hz.", ss->rate, speed); @@ -229,14 +233,14 @@ static int simple_log2(int v) { 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("SNDCTL_DSP_SETFRAGMENT: %s", pa_cstrerror(errno)); return -1; @@ -245,27 +249,29 @@ int pa_oss_set_fragments(int fd, int nfrags, int frag_size) { return 0; } -static int pa_oss_get_volume(int fd, int mixer, const pa_sample_spec *ss, pa_cvolume *volume) { +int pa_oss_get_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, pa_cvolume *volume) { char cv[PA_CVOLUME_SNPRINT_MAX]; unsigned vol; - assert(fd >= 0); - assert(ss); - assert(volume); - + pa_assert(fd >= 0); + pa_assert(ss); + pa_assert(volume); + if (ioctl(fd, mixer, &vol) < 0) return -1; + pa_cvolume_reset(volume, ss->channels); + volume->values[0] = ((vol & 0xFF) * PA_VOLUME_NORM) / 100; - if ((volume->channels = ss->channels) >= 2) + if (volume->channels >= 2) volume->values[1] = (((vol >> 8) & 0xFF) * PA_VOLUME_NORM) / 100; pa_log_debug("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) { +int pa_oss_set_volume(int fd, unsigned long mixer, const pa_sample_spec *ss, const pa_cvolume *volume) { char cv[PA_CVOLUME_SNPRINT_MAX]; unsigned vol; pa_volume_t l, r; @@ -278,7 +284,7 @@ static int pa_oss_set_volume(int fd, int mixer, const pa_sample_spec *ss, const 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; @@ -286,42 +292,50 @@ static int pa_oss_set_volume(int fd, int mixer, const pa_sample_spec *ss, const 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); -} +static int get_device_number(const char *dev) { + const char *p, *e; + char *rp = NULL; + int r; -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); -} + if (!(p = rp = pa_readlink(dev))) { + if (errno != EINVAL && errno != ENOLINK) { + r = -1; + goto finish; + } -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); -} + p = dev; + } + + if ((e = strrchr(p, '/'))) + p = e+1; + + if (p == 0) { + r = 0; + goto finish; + } + + p = strchr(p, 0) -1; + + if (*p >= '0' && *p <= '9') { + r = *p - '0'; + goto finish; + } + + r = -1; -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); +finish: + pa_xfree(rp); + return r; } 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 + if ((n = get_device_number(dev)) < 0) 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"))) { @@ -335,7 +349,7 @@ int pa_oss_get_hw_description(const char *dev, char *name, size_t l) { while (!feof(f)) { char line[64]; int device; - + if (!fgets(line, sizeof(line), f)) break; @@ -348,19 +362,19 @@ int pa_oss_get_hw_description(const char *dev, char *name, size_t l) { if (line[0] == 0) break; - + if (sscanf(line, "%i: ", &device) != 1) continue; if (device == n) { char *k = strchr(line, ':'); - assert(k); + pa_assert(k); k++; k += strspn(k, " "); if (pa_endswith(k, " (DUPLEX)")) k[strlen(k)-9] = 0; - + pa_strlcpy(name, k, l); r = 0; break; @@ -370,3 +384,34 @@ int pa_oss_get_hw_description(const char *dev, char *name, size_t l) { fclose(f); return r; } + +static int open_mixer(const char *mixer) { + int fd; + + if ((fd = open(mixer, O_RDWR|O_NDELAY|O_NOCTTY)) >= 0) + return fd; + + return -1; +} + +int pa_oss_open_mixer_for_device(const char *device) { + int n; + char *fn; + int fd; + + if ((n = get_device_number(device)) < 0) + return -1; + + if (n == 0) + if ((fd = open_mixer("/dev/mixer")) >= 0) + return fd; + + fn = pa_sprintf_malloc("/dev/mixer%i", n); + fd = open_mixer(fn); + pa_xfree(fn); + + if (fd < 0) + pa_log_warn("Failed to open mixer '%s': %s", device, pa_cstrerror(errno)); + + return fd; +} |