diff options
Diffstat (limited to 'amixer')
| -rw-r--r-- | amixer/amixer.c | 176 |
1 files changed, 95 insertions, 81 deletions
diff --git a/amixer/amixer.c b/amixer/amixer.c index a839e1e..9c15f8c 100644 --- a/amixer/amixer.c +++ b/amixer/amixer.c @@ -1369,67 +1369,35 @@ static int get_enum_item_index(snd_mixer_elem_t *elem, char **ptrp) return -1; } -static int sset(unsigned int argc, char *argv[], int roflag, int keep_handle) +static int sset_enum(snd_mixer_elem_t *elem, unsigned int argc, char **argv) { - int err, check_flag; - unsigned int idx; - snd_mixer_selem_channel_id_t chn; - unsigned int channels = ~0U; - unsigned int dir = 3, okflag = 3; - static snd_mixer_t *handle = NULL; - snd_mixer_elem_t *elem; - snd_mixer_selem_id_t *sid; - snd_mixer_selem_id_alloca(&sid); + unsigned int idx, chn = 0; + int check_flag = -1; - if (argc < 1) { - fprintf(stderr, "Specify a scontrol identifier: 'name',index\n"); - return 1; - } - if (parse_simple_id(argv[0], sid)) { - fprintf(stderr, "Wrong scontrol identifier: %s\n", argv[0]); - return 1; - } - if (!roflag && argc < 2) { - fprintf(stderr, "Specify what you want to set...\n"); - return 1; - } - if (handle == NULL) { - if ((err = snd_mixer_open(&handle, 0)) < 0) { - error("Mixer %s open error: %s\n", card, snd_strerror(err)); - return err; - } - if (smixer_level == 0 && (err = snd_mixer_attach(handle, card)) < 0) { - error("Mixer attach %s error: %s", card, snd_strerror(err)); - snd_mixer_close(handle); - handle = NULL; - return err; - } - if ((err = snd_mixer_selem_register(handle, smixer_level > 0 ? &smixer_options : NULL, NULL)) < 0) { - error("Mixer register error: %s", snd_strerror(err)); - snd_mixer_close(handle); - handle = NULL; - return err; - } - err = snd_mixer_load(handle); - if (err < 0) { - error("Mixer %s load error: %s", card, snd_strerror(err)); - snd_mixer_close(handle); - handle = NULL; - return err; + for (idx = 1; idx < argc; idx++) { + char *ptr = argv[idx]; + while (*ptr) { + int ival = get_enum_item_index(elem, &ptr); + if (ival < 0) + return check_flag; + if (snd_mixer_selem_set_enum_item(elem, chn, ival) >= 0) + check_flag = 1; + /* skip separators */ + while (*ptr == ',' || isspace(*ptr)) + ptr++; } } - elem = snd_mixer_find_selem(handle, sid); - if (!elem) { - if (ignore_error) - return 0; - error("Unable to find simple control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid)); - snd_mixer_close(handle); - handle = NULL; - return -ENOENT; - } - if (roflag) - goto __skip_write; - check_flag = 0; + return check_flag; +} + +static int sset_channels(snd_mixer_elem_t *elem, unsigned int argc, char **argv) +{ + unsigned int channels = ~0U; + unsigned int dir = 3, okflag = 3; + unsigned int idx; + snd_mixer_selem_channel_id_t chn; + int check_flag = -1; + for (idx = 1; idx < argc; idx++) { char *ptr = argv[idx], *optr; int multi, firstchn = 1; @@ -1447,19 +1415,6 @@ static int sset(unsigned int argc, char *argv[], int roflag, int keep_handle) if (!(channels & (1 << chn))) continue; - /* enum control */ - if (snd_mixer_selem_is_enumerated(elem)) { - int idx = get_enum_item_index(elem, &ptr); - if (idx < 0) { - break; - } else { - if (snd_mixer_selem_set_enum_item(elem, chn, idx) >= 0) - check_flag = 1; - } - if (!multi) - ptr = optr; - continue; - } if ((dir & 1) && snd_mixer_selem_has_playback_channel(elem, chn)) { sptr = ptr; @@ -1540,35 +1495,94 @@ static int sset(unsigned int argc, char *argv[], int roflag, int keep_handle) if (dir & 2) error("Unknown capture setup '%s'..", ptr); } - if (! keep_handle) { - snd_mixer_close(handle); - handle = NULL; - } - return 0; + return 0; /* just skip it */ } if (!multi) ptr = optr; firstchn = 0; } } - if (!check_flag) { - error("Invalid command!"); - if (! keep_handle) { + return check_flag; +} + +static int sset(unsigned int argc, char *argv[], int roflag, int keep_handle) +{ + int err = 0; + static snd_mixer_t *handle = NULL; + snd_mixer_elem_t *elem; + snd_mixer_selem_id_t *sid; + snd_mixer_selem_id_alloca(&sid); + + if (argc < 1) { + fprintf(stderr, "Specify a scontrol identifier: 'name',index\n"); + return 1; + } + if (parse_simple_id(argv[0], sid)) { + fprintf(stderr, "Wrong scontrol identifier: %s\n", argv[0]); + return 1; + } + if (!roflag && argc < 2) { + fprintf(stderr, "Specify what you want to set...\n"); + return 1; + } + if (handle == NULL) { + if ((err = snd_mixer_open(&handle, 0)) < 0) { + error("Mixer %s open error: %s\n", card, snd_strerror(err)); + return err; + } + if (smixer_level == 0 && (err = snd_mixer_attach(handle, card)) < 0) { + error("Mixer attach %s error: %s", card, snd_strerror(err)); snd_mixer_close(handle); handle = NULL; + return err; + } + if ((err = snd_mixer_selem_register(handle, smixer_level > 0 ? &smixer_options : NULL, NULL)) < 0) { + error("Mixer register error: %s", snd_strerror(err)); + snd_mixer_close(handle); + handle = NULL; + return err; + } + err = snd_mixer_load(handle); + if (err < 0) { + error("Mixer %s load error: %s", card, snd_strerror(err)); + snd_mixer_close(handle); + handle = NULL; + return err; + } + } + elem = snd_mixer_find_selem(handle, sid); + if (!elem) { + if (ignore_error) + return 0; + error("Unable to find simple control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid)); + snd_mixer_close(handle); + handle = NULL; + return -ENOENT; + } + if (!roflag) { + /* enum control */ + if (snd_mixer_selem_is_enumerated(elem)) + err = sset_enum(elem, argc, argv); + else + err = sset_channels(elem, argc, argv); + + if (!err) + goto done; + if (err < 0) { + error("Invalid command!"); + goto done; } - return 1; } - __skip_write: if (!quiet) { printf("Simple mixer control '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid)); show_selem(handle, sid, " ", 1); } + done: if (! keep_handle) { snd_mixer_close(handle); handle = NULL; } - return 0; + return err < 0 ? 1 : 0; } static void events_info(snd_hctl_elem_t *helem) |