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-rw-r--r--amixer/amixer.c2013
1 files changed, 2013 insertions, 0 deletions
diff --git a/amixer/amixer.c b/amixer/amixer.c
new file mode 100644
index 0000000..9620721
--- /dev/null
+++ b/amixer/amixer.c
@@ -0,0 +1,2013 @@
+/*
+ * ALSA command line mixer utility
+ * Copyright (c) 1999-2000 by Jaroslav Kysela <perex@perex.cz>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <getopt.h>
+#include <stdarg.h>
+#include <ctype.h>
+#include <math.h>
+#include <errno.h>
+#include <assert.h>
+#include <alsa/asoundlib.h>
+#include <sys/poll.h>
+#include "amixer.h"
+
+#define LEVEL_BASIC (1<<0)
+#define LEVEL_INACTIVE (1<<1)
+#define LEVEL_ID (1<<2)
+
+static int quiet = 0;
+static int debugflag = 0;
+static int no_check = 0;
+static int smixer_level = 0;
+static int ignore_error = 0;
+static struct snd_mixer_selem_regopt smixer_options;
+static char card[64] = "default";
+
+static void error(const char *fmt,...)
+{
+ va_list va;
+
+ va_start(va, fmt);
+ fprintf(stderr, "amixer: ");
+ vfprintf(stderr, fmt, va);
+ fprintf(stderr, "\n");
+ va_end(va);
+}
+
+static int help(void)
+{
+ printf("Usage: amixer <options> [command]\n");
+ printf("\nAvailable options:\n");
+ printf(" -h,--help this help\n");
+ printf(" -c,--card N select the card\n");
+ printf(" -D,--device N select the device, default '%s'\n", card);
+ printf(" -d,--debug debug mode\n");
+ printf(" -n,--nocheck do not perform range checking\n");
+ printf(" -v,--version print version of this program\n");
+ printf(" -q,--quiet be quiet\n");
+ printf(" -i,--inactive show also inactive controls\n");
+ printf(" -a,--abstract L select abstraction level (none or basic)\n");
+ printf(" -s,--stdin Read and execute commands from stdin sequentially\n");
+ printf("\nAvailable commands:\n");
+ printf(" scontrols show all mixer simple controls\n");
+ printf(" scontents show contents of all mixer simple controls (default command)\n");
+ printf(" sset sID P set contents for one mixer simple control\n");
+ printf(" sget sID get contents for one mixer simple control\n");
+ printf(" controls show all controls for given card\n");
+ printf(" contents show contents of all controls for given card\n");
+ printf(" cset cID P set control contents for one control\n");
+ printf(" cget cID get control contents for one control\n");
+ return 0;
+}
+
+static int info(void)
+{
+ int err;
+ snd_ctl_t *handle;
+ snd_mixer_t *mhandle;
+ snd_ctl_card_info_t *info;
+ snd_ctl_elem_list_t *clist;
+ snd_ctl_card_info_alloca(&info);
+ snd_ctl_elem_list_alloca(&clist);
+
+ if ((err = snd_ctl_open(&handle, card, 0)) < 0) {
+ error("Control device %s open error: %s", card, snd_strerror(err));
+ return err;
+ }
+
+ if ((err = snd_ctl_card_info(handle, info)) < 0) {
+ error("Control device %s hw info error: %s", card, snd_strerror(err));
+ return err;
+ }
+ printf("Card %s '%s'/'%s'\n", card, snd_ctl_card_info_get_id(info),
+ snd_ctl_card_info_get_longname(info));
+ printf(" Mixer name : '%s'\n", snd_ctl_card_info_get_mixername(info));
+ printf(" Components : '%s'\n", snd_ctl_card_info_get_components(info));
+ if ((err = snd_ctl_elem_list(handle, clist)) < 0) {
+ error("snd_ctl_elem_list failure: %s", snd_strerror(err));
+ } else {
+ printf(" Controls : %i\n", snd_ctl_elem_list_get_count(clist));
+ }
+ snd_ctl_close(handle);
+ if ((err = snd_mixer_open(&mhandle, 0)) < 0) {
+ error("Mixer open error: %s", snd_strerror(err));
+ return err;
+ }
+ if (smixer_level == 0 && (err = snd_mixer_attach(mhandle, card)) < 0) {
+ error("Mixer attach %s error: %s", card, snd_strerror(err));
+ snd_mixer_close(mhandle);
+ return err;
+ }
+ if ((err = snd_mixer_selem_register(mhandle, smixer_level > 0 ? &smixer_options : NULL, NULL)) < 0) {
+ error("Mixer register error: %s", snd_strerror(err));
+ snd_mixer_close(mhandle);
+ return err;
+ }
+ err = snd_mixer_load(mhandle);
+ if (err < 0) {
+ error("Mixer load %s error: %s", card, snd_strerror(err));
+ snd_mixer_close(mhandle);
+ return err;
+ }
+ printf(" Simple ctrls : %i\n", snd_mixer_get_count(mhandle));
+ snd_mixer_close(mhandle);
+ return 0;
+}
+
+static const char *control_iface(snd_ctl_elem_id_t *id)
+{
+ return snd_ctl_elem_iface_name(snd_ctl_elem_id_get_interface(id));
+}
+
+static const char *control_type(snd_ctl_elem_info_t *info)
+{
+ return snd_ctl_elem_type_name(snd_ctl_elem_info_get_type(info));
+}
+
+static const char *control_access(snd_ctl_elem_info_t *info)
+{
+ static char result[10];
+ char *res = result;
+
+ *res++ = snd_ctl_elem_info_is_readable(info) ? 'r' : '-';
+ *res++ = snd_ctl_elem_info_is_writable(info) ? 'w' : '-';
+ *res++ = snd_ctl_elem_info_is_inactive(info) ? 'i' : '-';
+ *res++ = snd_ctl_elem_info_is_volatile(info) ? 'v' : '-';
+ *res++ = snd_ctl_elem_info_is_locked(info) ? 'l' : '-';
+ *res++ = snd_ctl_elem_info_is_tlv_readable(info) ? 'R' : '-';
+ *res++ = snd_ctl_elem_info_is_tlv_writable(info) ? 'W' : '-';
+ *res++ = snd_ctl_elem_info_is_tlv_commandable(info) ? 'C' : '-';
+ *res++ = '\0';
+ return result;
+}
+
+#define check_range(val, min, max) \
+ (no_check ? (val) : ((val < min) ? (min) : (val > max) ? (max) : (val)))
+#if 0
+static int convert_range(int val, int omin, int omax, int nmin, int nmax)
+{
+ int orange = omax - omin, nrange = nmax - nmin;
+
+ if (orange == 0)
+ return 0;
+ return rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / ((double)orange + (double)nmin));
+}
+#endif
+
+#if 0
+static int convert_db_range(int val, int omin, int omax, int nmin, int nmax)
+{
+ int orange = omax - omin, nrange = nmax - nmin;
+
+ if (orange == 0)
+ return 0;
+ return rint((((double)nrange * ((double)val - (double)omin)) + ((double)orange / 2.0)) / (double)orange + (double)nmin);
+}
+#endif
+
+/* Fuction to convert from volume to percentage. val = volume */
+
+static int convert_prange(int val, int min, int max)
+{
+ int range = max - min;
+ int tmp;
+
+ if (range == 0)
+ return 0;
+ val -= min;
+ tmp = rint((double)val/(double)range * 100);
+ return tmp;
+}
+
+/* Function to convert from percentage to volume. val = percentage */
+
+#define convert_prange1(val, min, max) \
+ ceil((val) * ((max) - (min)) * 0.01 + (min))
+
+static const char *get_percent(int val, int min, int max)
+{
+ static char str[32];
+ int p;
+
+ p = convert_prange(val, min, max);
+ sprintf(str, "%i [%i%%]", val, p);
+ return str;
+}
+
+#if 0
+static const char *get_percent1(int val, int min, int max, int min_dB, int max_dB)
+{
+ static char str[32];
+ int p, db;
+
+ p = convert_prange(val, min, max);
+ db = convert_db_range(val, min, max, min_dB, max_dB);
+ sprintf(str, "%i [%i%%] [%i.%02idB]", val, p, db / 100, abs(db % 100));
+ return str;
+}
+#endif
+
+static long get_integer(char **ptr, long min, long max)
+{
+ long val = min;
+ char *p = *ptr, *s;
+
+ if (*p == ':')
+ p++;
+ if (*p == '\0' || (!isdigit(*p) && *p != '-'))
+ goto out;
+
+ s = p;
+ val = strtol(s, &p, 10);
+ if (*p == '.') {
+ p++;
+ strtol(p, &p, 10);
+ }
+ if (*p == '%') {
+ val = (long)convert_prange1(strtod(s, NULL), min, max);
+ p++;
+ }
+ val = check_range(val, min, max);
+ if (*p == ',')
+ p++;
+ out:
+ *ptr = p;
+ return val;
+}
+
+static long get_integer64(char **ptr, long long min, long long max)
+{
+ long long val = min;
+ char *p = *ptr, *s;
+
+ if (*p == ':')
+ p++;
+ if (*p == '\0' || (!isdigit(*p) && *p != '-'))
+ goto out;
+
+ s = p;
+ val = strtol(s, &p, 10);
+ if (*p == '.') {
+ p++;
+ strtol(p, &p, 10);
+ }
+ if (*p == '%') {
+ val = (long long)convert_prange1(strtod(s, NULL), min, max);
+ p++;
+ }
+ val = check_range(val, min, max);
+ if (*p == ',')
+ p++;
+ out:
+ *ptr = p;
+ return val;
+}
+
+struct volume_ops {
+ int (*get_range)(snd_mixer_elem_t *elem, long *min, long *max);
+ int (*get)(snd_mixer_elem_t *elem, snd_mixer_selem_channel_id_t c,
+ long *value);
+ int (*set)(snd_mixer_elem_t *elem, snd_mixer_selem_channel_id_t c,
+ long value);
+};
+
+enum { VOL_RAW, VOL_DB };
+
+struct volume_ops_set {
+ int (*has_volume)(snd_mixer_elem_t *elem);
+ struct volume_ops v[2];
+};
+
+static int set_playback_dB(snd_mixer_elem_t *elem,
+ snd_mixer_selem_channel_id_t c, long value)
+{
+ return snd_mixer_selem_set_playback_dB(elem, c, value, 0);
+}
+
+static int set_capture_dB(snd_mixer_elem_t *elem,
+ snd_mixer_selem_channel_id_t c, long value)
+{
+ return snd_mixer_selem_set_capture_dB(elem, c, value, 0);
+}
+
+static const struct volume_ops_set vol_ops[2] = {
+ {
+ .has_volume = snd_mixer_selem_has_playback_volume,
+ .v = {{ snd_mixer_selem_get_playback_volume_range,
+ snd_mixer_selem_get_playback_volume,
+ snd_mixer_selem_set_playback_volume },
+ { snd_mixer_selem_get_playback_dB_range,
+ snd_mixer_selem_get_playback_dB,
+ set_playback_dB }},
+ },
+ {
+ .has_volume = snd_mixer_selem_has_capture_volume,
+ .v = {{ snd_mixer_selem_get_capture_volume_range,
+ snd_mixer_selem_get_capture_volume,
+ snd_mixer_selem_set_capture_volume },
+ { snd_mixer_selem_get_capture_dB_range,
+ snd_mixer_selem_get_capture_dB,
+ set_capture_dB }},
+ },
+};
+
+static int set_volume_simple(snd_mixer_elem_t *elem,
+ snd_mixer_selem_channel_id_t chn,
+ char **ptr, int dir)
+{
+ long val, orig, pmin, pmax;
+ char *p = *ptr, *s;
+ int invalid = 0, err = 0, vol_type = VOL_RAW;
+
+ if (! vol_ops[dir].has_volume(elem))
+ invalid = 1;
+
+ if (*p == ':')
+ p++;
+ if (*p == '\0' || (!isdigit(*p) && *p != '-'))
+ goto skip;
+
+ if (! invalid &&
+ vol_ops[dir].v[VOL_RAW].get_range(elem, &pmin, &pmax) < 0)
+ invalid = 1;
+
+ s = p;
+ val = strtol(s, &p, 10);
+ if (*p == '.') {
+ p++;
+ strtol(p, &p, 10);
+ }
+ if (*p == '%') {
+ if (! invalid)
+ val = (long)convert_prange1(strtod(s, NULL), pmin, pmax);
+ p++;
+ } else if (p[0] == 'd' && p[1] == 'B') {
+ if (! invalid) {
+ val = (long)(strtod(s, NULL) * 100.0);
+ vol_type = VOL_DB;
+ if (vol_ops[dir].v[vol_type].get_range(elem, &pmin, &pmax) < 0)
+ invalid = 1;
+ }
+ p += 2;
+ }
+ if (*p == '+' || *p == '-') {
+ if (! invalid) {
+ if (vol_ops[dir].v[vol_type].get(elem, chn, &orig) < 0)
+ invalid = 1;
+ if (*p == '+')
+ val = orig + val;
+ else
+ val = orig - val;
+ }
+ p++;
+ }
+ if (! invalid) {
+ val = check_range(val, pmin, pmax);
+ err = vol_ops[dir].v[vol_type].set(elem, chn, val);
+ }
+ skip:
+ if (*p == ',')
+ p++;
+ *ptr = p;
+ return err ? err : (invalid ? -ENOENT : 0);
+}
+
+static int get_bool_simple(char **ptr, char *str, int invert, int orig)
+{
+ if (**ptr == ':')
+ (*ptr)++;
+ if (!strncasecmp(*ptr, str, strlen(str))) {
+ orig = 1 ^ (invert ? 1 : 0);
+ while (**ptr != '\0' && **ptr != ',' && **ptr != ':')
+ (*ptr)++;
+ }
+ if (**ptr == ',' || **ptr == ':')
+ (*ptr)++;
+ return orig;
+}
+
+static int simple_skip_word(char **ptr, char *str)
+{
+ char *xptr = *ptr;
+ if (*xptr == ':')
+ xptr++;
+ if (!strncasecmp(xptr, str, strlen(str))) {
+ while (*xptr != '\0' && *xptr != ',' && *xptr != ':')
+ xptr++;
+ if (*xptr == ',' || *xptr == ':')
+ xptr++;
+ *ptr = xptr;
+ return 1;
+ }
+ return 0;
+}
+
+static void show_control_id(snd_ctl_elem_id_t *id)
+{
+ unsigned int index, device, subdevice;
+ printf("numid=%u,iface=%s,name='%s'",
+ snd_ctl_elem_id_get_numid(id),
+ control_iface(id),
+ snd_ctl_elem_id_get_name(id));
+ index = snd_ctl_elem_id_get_index(id);
+ device = snd_ctl_elem_id_get_device(id);
+ subdevice = snd_ctl_elem_id_get_subdevice(id);
+ if (index)
+ printf(",index=%i", index);
+ if (device)
+ printf(",device=%i", device);
+ if (subdevice)
+ printf(",subdevice=%i", subdevice);
+}
+
+static void print_spaces(unsigned int spaces)
+{
+ while (spaces-- > 0)
+ putc(' ', stdout);
+}
+
+static void print_dB(long dB)
+{
+ printf("%li.%02lidB", dB / 100, (dB < 0 ? -dB : dB) % 100);
+}
+
+static void decode_tlv(unsigned int spaces, unsigned int *tlv, unsigned int tlv_size)
+{
+ unsigned int type = tlv[0];
+ unsigned int size;
+ unsigned int idx = 0;
+
+ if (tlv_size < 2 * sizeof(unsigned int)) {
+ printf("TLV size error!\n");
+ return;
+ }
+ print_spaces(spaces);
+ printf("| ");
+ type = tlv[idx++];
+ size = tlv[idx++];
+ tlv_size -= 2 * sizeof(unsigned int);
+ if (size > tlv_size) {
+ printf("TLV size error (%i, %i, %i)!\n", type, size, tlv_size);
+ return;
+ }
+ switch (type) {
+ case SND_CTL_TLVT_CONTAINER:
+ size += sizeof(unsigned int) -1;
+ size /= sizeof(unsigned int);
+ while (idx < size) {
+ if (tlv[idx+1] > (size - idx) * sizeof(unsigned int)) {
+ printf("TLV size error in compound!\n");
+ return;
+ }
+ decode_tlv(spaces + 2, tlv + idx, tlv[idx+1]);
+ idx += 2 + (tlv[1] + sizeof(unsigned int) - 1) / sizeof(unsigned int);
+ }
+ break;
+ case SND_CTL_TLVT_DB_SCALE:
+ printf("dBscale-");
+ if (size != 2 * sizeof(unsigned int)) {
+ while (size > 0) {
+ printf("0x%08x,", tlv[idx++]);
+ size -= sizeof(unsigned int);
+ }
+ } else {
+ printf("min=");
+ print_dB((int)tlv[2]);
+ printf(",step=");
+ print_dB(tlv[3] & 0xffff);
+ printf(",mute=%i", (tlv[3] >> 16) & 1);
+ }
+ break;
+#ifdef SND_CTL_TLVT_DB_LINEAR
+ case SND_CTL_TLVT_DB_LINEAR:
+ printf("dBlinear-");
+ if (size != 2 * sizeof(unsigned int)) {
+ while (size > 0) {
+ printf("0x%08x,", tlv[idx++]);
+ size -= sizeof(unsigned int);
+ }
+ } else {
+ printf("min=");
+ print_dB(tlv[2]);
+ printf(",max=");
+ print_dB(tlv[3]);
+ }
+ break;
+#endif
+#ifdef SND_CTL_TLVT_DB_RANGE
+ case SND_CTL_TLVT_DB_RANGE:
+ printf("dBrange-\n");
+ if ((size / (6 * sizeof(unsigned int))) != 0) {
+ while (size > 0) {
+ printf("0x%08x,", tlv[idx++]);
+ size -= sizeof(unsigned int);
+ }
+ break;
+ }
+ idx = 0;
+ while (idx < size) {
+ print_spaces(spaces + 2);
+ printf("rangemin=%i,", tlv[0]);
+ printf(",rangemax=%i\n", tlv[1]);
+ decode_tlv(spaces + 4, tlv + 2, 6 * sizeof(unsigned int));
+ idx += 6 * sizeof(unsigned int);
+ }
+ break;
+#endif
+ default:
+ printf("unk-%i-", type);
+ while (size > 0) {
+ printf("0x%08x,", tlv[idx++]);
+ size -= sizeof(unsigned int);
+ }
+ break;
+ }
+ putc('\n', stdout);
+}
+
+static int show_control(const char *space, snd_hctl_elem_t *elem,
+ int level)
+{
+ int err;
+ unsigned int item, idx, count, *tlv;
+ snd_ctl_elem_type_t type;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_info_t *info;
+ snd_ctl_elem_value_t *control;
+ snd_aes_iec958_t iec958;
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_info_alloca(&info);
+ snd_ctl_elem_value_alloca(&control);
+ if ((err = snd_hctl_elem_info(elem, info)) < 0) {
+ error("Control %s snd_hctl_elem_info error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ if (level & LEVEL_ID) {
+ snd_hctl_elem_get_id(elem, id);
+ show_control_id(id);
+ printf("\n");
+ }
+ count = snd_ctl_elem_info_get_count(info);
+ type = snd_ctl_elem_info_get_type(info);
+ printf("%s; type=%s,access=%s,values=%i", space, control_type(info), control_access(info), count);
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ printf(",min=%li,max=%li,step=%li\n",
+ snd_ctl_elem_info_get_min(info),
+ snd_ctl_elem_info_get_max(info),
+ snd_ctl_elem_info_get_step(info));
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ printf(",min=%Li,max=%Li,step=%Li\n",
+ snd_ctl_elem_info_get_min64(info),
+ snd_ctl_elem_info_get_max64(info),
+ snd_ctl_elem_info_get_step64(info));
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ {
+ unsigned int items = snd_ctl_elem_info_get_items(info);
+ printf(",items=%u\n", items);
+ for (item = 0; item < items; item++) {
+ snd_ctl_elem_info_set_item(info, item);
+ if ((err = snd_hctl_elem_info(elem, info)) < 0) {
+ error("Control %s element info error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ printf("%s; Item #%u '%s'\n", space, item, snd_ctl_elem_info_get_item_name(info));
+ }
+ break;
+ }
+ default:
+ printf("\n");
+ break;
+ }
+ if (level & LEVEL_BASIC) {
+ if ((err = snd_hctl_elem_read(elem, control)) < 0) {
+ error("Control %s element read error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ printf("%s: values=", space);
+ for (idx = 0; idx < count; idx++) {
+ if (idx > 0)
+ printf(",");
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_BOOLEAN:
+ printf("%s", snd_ctl_elem_value_get_boolean(control, idx) ? "on" : "off");
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ printf("%li", snd_ctl_elem_value_get_integer(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ printf("%Li", snd_ctl_elem_value_get_integer64(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ printf("%u", snd_ctl_elem_value_get_enumerated(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_BYTES:
+ printf("0x%02x", snd_ctl_elem_value_get_byte(control, idx));
+ break;
+ case SND_CTL_ELEM_TYPE_IEC958:
+ snd_ctl_elem_value_get_iec958(control, &iec958);
+ printf("[AES0=0x%02x AES1=0x%02x AES2=0x%02x AES3=0x%02x]",
+ iec958.status[0], iec958.status[1],
+ iec958.status[2], iec958.status[3]);
+ break;
+ default:
+ printf("?");
+ break;
+ }
+ }
+ printf("\n");
+ if (!snd_ctl_elem_info_is_tlv_readable(info))
+ goto __skip_tlv;
+ tlv = malloc(4096);
+ if ((err = snd_hctl_elem_tlv_read(elem, tlv, 4096)) < 0) {
+ error("Control %s element TLV read error: %s\n", card, snd_strerror(err));
+ free(tlv);
+ return err;
+ }
+ decode_tlv(strlen(space), tlv, 4096);
+ free(tlv);
+ }
+ __skip_tlv:
+ return 0;
+}
+
+static int controls(int level)
+{
+ int err;
+ snd_hctl_t *handle;
+ snd_hctl_elem_t *elem;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_info_t *info;
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_info_alloca(&info);
+
+ if ((err = snd_hctl_open(&handle, card, 0)) < 0) {
+ error("Control %s open error: %s", card, snd_strerror(err));
+ return err;
+ }
+ if ((err = snd_hctl_load(handle)) < 0) {
+ error("Control %s local error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ for (elem = snd_hctl_first_elem(handle); elem; elem = snd_hctl_elem_next(elem)) {
+ if ((err = snd_hctl_elem_info(elem, info)) < 0) {
+ error("Control %s snd_hctl_elem_info error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ if (!(level & LEVEL_INACTIVE) && snd_ctl_elem_info_is_inactive(info))
+ continue;
+ snd_hctl_elem_get_id(elem, id);
+ show_control_id(id);
+ printf("\n");
+ if (level & LEVEL_BASIC)
+ show_control(" ", elem, 1);
+ }
+ snd_hctl_close(handle);
+ return 0;
+}
+
+static int show_selem(snd_mixer_t *handle, snd_mixer_selem_id_t *id, const char *space, int level)
+{
+ snd_mixer_selem_channel_id_t chn;
+ long pmin = 0, pmax = 0;
+ long cmin = 0, cmax = 0;
+ long pvol, cvol;
+ int psw, csw;
+ int pmono, cmono, mono_ok = 0;
+ long db;
+ snd_mixer_elem_t *elem;
+
+ elem = snd_mixer_find_selem(handle, id);
+ if (!elem) {
+ error("Mixer %s simple element not found", card);
+ return -ENOENT;
+ }
+
+ if (level & LEVEL_BASIC) {
+ printf("%sCapabilities:", space);
+ if (snd_mixer_selem_has_common_volume(elem)) {
+ printf(" volume");
+ if (snd_mixer_selem_has_playback_volume_joined(elem))
+ printf(" volume-joined");
+ } else {
+ if (snd_mixer_selem_has_playback_volume(elem)) {
+ printf(" pvolume");
+ if (snd_mixer_selem_has_playback_volume_joined(elem))
+ printf(" pvolume-joined");
+ }
+ if (snd_mixer_selem_has_capture_volume(elem)) {
+ printf(" cvolume");
+ if (snd_mixer_selem_has_capture_volume_joined(elem))
+ printf(" cvolume-joined");
+ }
+ }
+ if (snd_mixer_selem_has_common_switch(elem)) {
+ printf(" switch");
+ if (snd_mixer_selem_has_playback_switch_joined(elem))
+ printf(" switch-joined");
+ } else {
+ if (snd_mixer_selem_has_playback_switch(elem)) {
+ printf(" pswitch");
+ if (snd_mixer_selem_has_playback_switch_joined(elem))
+ printf(" pswitch-joined");
+ }
+ if (snd_mixer_selem_has_capture_switch(elem)) {
+ printf(" cswitch");
+ if (snd_mixer_selem_has_capture_switch_joined(elem))
+ printf(" cswitch-joined");
+ if (snd_mixer_selem_has_capture_switch_exclusive(elem))
+ printf(" cswitch-exclusive");
+ }
+ }
+ if (snd_mixer_selem_is_enum_playback(elem)) {
+ printf(" penum");
+ } else if (snd_mixer_selem_is_enum_capture(elem)) {
+ printf(" cenum");
+ } else if (snd_mixer_selem_is_enumerated(elem)) {
+ printf(" enum");
+ }
+ printf("\n");
+ if (snd_mixer_selem_is_enumerated(elem)) {
+ int i, items;
+ unsigned int idx;
+ char itemname[40];
+ items = snd_mixer_selem_get_enum_items(elem);
+ printf(" Items:");
+ for (i = 0; i < items; i++) {
+ snd_mixer_selem_get_enum_item_name(elem, i, sizeof(itemname) - 1, itemname);
+ printf(" '%s'", itemname);
+ }
+ printf("\n");
+ for (i = 0; !snd_mixer_selem_get_enum_item(elem, i, &idx); i++) {
+ snd_mixer_selem_get_enum_item_name(elem, idx, sizeof(itemname) - 1, itemname);
+ printf(" Item%d: '%s'\n", i, itemname);
+ }
+ return 0; /* no more thing to do */
+ }
+ if (snd_mixer_selem_has_capture_switch_exclusive(elem))
+ printf("%sCapture exclusive group: %i\n", space,
+ snd_mixer_selem_get_capture_group(elem));
+ if (snd_mixer_selem_has_playback_volume(elem) ||
+ snd_mixer_selem_has_playback_switch(elem)) {
+ printf("%sPlayback channels:", space);
+ if (snd_mixer_selem_is_playback_mono(elem)) {
+ printf(" Mono");
+ } else {
+ int first = 1;
+ for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++){
+ if (!snd_mixer_selem_has_playback_channel(elem, chn))
+ continue;
+ if (!first)
+ printf(" -");
+ printf(" %s", snd_mixer_selem_channel_name(chn));
+ first = 0;
+ }
+ }
+ printf("\n");
+ }
+ if (snd_mixer_selem_has_capture_volume(elem) ||
+ snd_mixer_selem_has_capture_switch(elem)) {
+ printf("%sCapture channels:", space);
+ if (snd_mixer_selem_is_capture_mono(elem)) {
+ printf(" Mono");
+ } else {
+ int first = 1;
+ for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++){
+ if (!snd_mixer_selem_has_capture_channel(elem, chn))
+ continue;
+ if (!first)
+ printf(" -");
+ printf(" %s", snd_mixer_selem_channel_name(chn));
+ first = 0;
+ }
+ }
+ printf("\n");
+ }
+ if (snd_mixer_selem_has_playback_volume(elem) ||
+ snd_mixer_selem_has_capture_volume(elem)) {
+ printf("%sLimits:", space);
+ if (snd_mixer_selem_has_common_volume(elem)) {
+ snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
+ snd_mixer_selem_get_capture_volume_range(elem, &cmin, &cmax);
+ printf(" %li - %li", pmin, pmax);
+ } else {
+ if (snd_mixer_selem_has_playback_volume(elem)) {
+ snd_mixer_selem_get_playback_volume_range(elem, &pmin, &pmax);
+ printf(" Playback %li - %li", pmin, pmax);
+ }
+ if (snd_mixer_selem_has_capture_volume(elem)) {
+ snd_mixer_selem_get_capture_volume_range(elem, &cmin, &cmax);
+ printf(" Capture %li - %li", cmin, cmax);
+ }
+ }
+ printf("\n");
+ }
+ pmono = snd_mixer_selem_has_playback_channel(elem, SND_MIXER_SCHN_MONO) &&
+ (snd_mixer_selem_is_playback_mono(elem) ||
+ (!snd_mixer_selem_has_playback_volume(elem) &&
+ !snd_mixer_selem_has_playback_switch(elem)));
+ cmono = snd_mixer_selem_has_capture_channel(elem, SND_MIXER_SCHN_MONO) &&
+ (snd_mixer_selem_is_capture_mono(elem) ||
+ (!snd_mixer_selem_has_capture_volume(elem) &&
+ !snd_mixer_selem_has_capture_switch(elem)));
+#if 0
+ printf("pmono = %i, cmono = %i (%i, %i, %i, %i)\n", pmono, cmono,
+ snd_mixer_selem_has_capture_channel(elem, SND_MIXER_SCHN_MONO),
+ snd_mixer_selem_is_capture_mono(elem),
+ snd_mixer_selem_has_capture_volume(elem),
+ snd_mixer_selem_has_capture_switch(elem));
+#endif
+ if (pmono || cmono) {
+ if (!mono_ok) {
+ printf("%s%s:", space, "Mono");
+ mono_ok = 1;
+ }
+ if (snd_mixer_selem_has_common_volume(elem)) {
+ snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &pvol);
+ printf(" %s", get_percent(pvol, pmin, pmax));
+ if (!snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ if (snd_mixer_selem_has_common_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, SND_MIXER_SCHN_MONO, &psw);
+ printf(" [%s]", psw ? "on" : "off");
+ }
+ }
+ if (pmono && snd_mixer_selem_has_playback_channel(elem, SND_MIXER_SCHN_MONO)) {
+ int title = 0;
+ if (!mono_ok) {
+ printf("%s%s:", space, "Mono");
+ mono_ok = 1;
+ }
+ if (!snd_mixer_selem_has_common_volume(elem)) {
+ if (snd_mixer_selem_has_playback_volume(elem)) {
+ printf(" Playback");
+ title = 1;
+ snd_mixer_selem_get_playback_volume(elem, SND_MIXER_SCHN_MONO, &pvol);
+ printf(" %s", get_percent(pvol, pmin, pmax));
+ if (!snd_mixer_selem_get_playback_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ }
+ if (!snd_mixer_selem_has_common_switch(elem)) {
+ if (snd_mixer_selem_has_playback_switch(elem)) {
+ if (!title)
+ printf(" Playback");
+ snd_mixer_selem_get_playback_switch(elem, SND_MIXER_SCHN_MONO, &psw);
+ printf(" [%s]", psw ? "on" : "off");
+ }
+ }
+ }
+ if (cmono && snd_mixer_selem_has_capture_channel(elem, SND_MIXER_SCHN_MONO)) {
+ int title = 0;
+ if (!mono_ok) {
+ printf("%s%s:", space, "Mono");
+ mono_ok = 1;
+ }
+ if (!snd_mixer_selem_has_common_volume(elem)) {
+ if (snd_mixer_selem_has_capture_volume(elem)) {
+ printf(" Capture");
+ title = 1;
+ snd_mixer_selem_get_capture_volume(elem, SND_MIXER_SCHN_MONO, &cvol);
+ printf(" %s", get_percent(cvol, cmin, cmax));
+ if (!snd_mixer_selem_get_capture_dB(elem, SND_MIXER_SCHN_MONO, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ }
+ if (!snd_mixer_selem_has_common_switch(elem)) {
+ if (snd_mixer_selem_has_capture_switch(elem)) {
+ if (!title)
+ printf(" Capture");
+ snd_mixer_selem_get_capture_switch(elem, SND_MIXER_SCHN_MONO, &csw);
+ printf(" [%s]", csw ? "on" : "off");
+ }
+ }
+ }
+ if (pmono || cmono)
+ printf("\n");
+ if (!pmono || !cmono) {
+ for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) {
+ if ((pmono || !snd_mixer_selem_has_playback_channel(elem, chn)) &&
+ (cmono || !snd_mixer_selem_has_capture_channel(elem, chn)))
+ continue;
+ printf("%s%s:", space, snd_mixer_selem_channel_name(chn));
+ if (!pmono && !cmono && snd_mixer_selem_has_common_volume(elem)) {
+ snd_mixer_selem_get_playback_volume(elem, chn, &pvol);
+ printf(" %s", get_percent(pvol, pmin, pmax));
+ if (!snd_mixer_selem_get_playback_dB(elem, chn, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ if (!pmono && !cmono && snd_mixer_selem_has_common_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &psw);
+ printf(" [%s]", psw ? "on" : "off");
+ }
+ if (!pmono && snd_mixer_selem_has_playback_channel(elem, chn)) {
+ int title = 0;
+ if (!snd_mixer_selem_has_common_volume(elem)) {
+ if (snd_mixer_selem_has_playback_volume(elem)) {
+ printf(" Playback");
+ title = 1;
+ snd_mixer_selem_get_playback_volume(elem, chn, &pvol);
+ printf(" %s", get_percent(pvol, pmin, pmax));
+ if (!snd_mixer_selem_get_playback_dB(elem, chn, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ }
+ if (!snd_mixer_selem_has_common_switch(elem)) {
+ if (snd_mixer_selem_has_playback_switch(elem)) {
+ if (!title)
+ printf(" Playback");
+ snd_mixer_selem_get_playback_switch(elem, chn, &psw);
+ printf(" [%s]", psw ? "on" : "off");
+ }
+ }
+ }
+ if (!cmono && snd_mixer_selem_has_capture_channel(elem, chn)) {
+ int title = 0;
+ if (!snd_mixer_selem_has_common_volume(elem)) {
+ if (snd_mixer_selem_has_capture_volume(elem)) {
+ printf(" Capture");
+ title = 1;
+ snd_mixer_selem_get_capture_volume(elem, chn, &cvol);
+ printf(" %s", get_percent(cvol, cmin, cmax));
+ if (!snd_mixer_selem_get_capture_dB(elem, chn, &db)) {
+ printf(" [");
+ print_dB(db);
+ printf("]");
+ }
+ }
+ }
+ if (!snd_mixer_selem_has_common_switch(elem)) {
+ if (snd_mixer_selem_has_capture_switch(elem)) {
+ if (!title)
+ printf(" Capture");
+ snd_mixer_selem_get_capture_switch(elem, chn, &csw);
+ printf(" [%s]", csw ? "on" : "off");
+ }
+ }
+ }
+ printf("\n");
+ }
+ }
+ }
+ return 0;
+}
+
+static int selems(int level)
+{
+ int err;
+ snd_mixer_t *handle;
+ snd_mixer_selem_id_t *sid;
+ snd_mixer_elem_t *elem;
+ snd_mixer_selem_id_alloca(&sid);
+
+ if ((err = snd_mixer_open(&handle, 0)) < 0) {
+ error("Mixer %s open error: %s", 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);
+ 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);
+ return err;
+ }
+ err = snd_mixer_load(handle);
+ if (err < 0) {
+ error("Mixer %s load error: %s", card, snd_strerror(err));
+ snd_mixer_close(handle);
+ return err;
+ }
+ for (elem = snd_mixer_first_elem(handle); elem; elem = snd_mixer_elem_next(elem)) {
+ snd_mixer_selem_get_id(elem, sid);
+ if (!(level & LEVEL_INACTIVE) && !snd_mixer_selem_is_active(elem))
+ continue;
+ 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, " ", level);
+ }
+ snd_mixer_close(handle);
+ return 0;
+}
+
+static int parse_control_id(const char *str, snd_ctl_elem_id_t *id)
+{
+ int c, size, numid;
+ char *ptr;
+
+ while (*str == ' ' || *str == '\t')
+ str++;
+ if (!(*str))
+ return -EINVAL;
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER); /* default */
+ while (*str) {
+ if (!strncasecmp(str, "numid=", 6)) {
+ str += 6;
+ numid = atoi(str);
+ if (numid <= 0) {
+ fprintf(stderr, "amixer: Invalid numid %d\n", numid);
+ return -EINVAL;
+ }
+ snd_ctl_elem_id_set_numid(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "iface=", 6)) {
+ str += 6;
+ if (!strncasecmp(str, "card", 4)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_CARD);
+ str += 4;
+ } else if (!strncasecmp(str, "mixer", 5)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_MIXER);
+ str += 5;
+ } else if (!strncasecmp(str, "pcm", 3)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_PCM);
+ str += 3;
+ } else if (!strncasecmp(str, "rawmidi", 7)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_RAWMIDI);
+ str += 7;
+ } else if (!strncasecmp(str, "timer", 5)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_TIMER);
+ str += 5;
+ } else if (!strncasecmp(str, "sequencer", 9)) {
+ snd_ctl_elem_id_set_interface(id, SND_CTL_ELEM_IFACE_SEQUENCER);
+ str += 9;
+ } else {
+ return -EINVAL;
+ }
+ } else if (!strncasecmp(str, "name=", 5)) {
+ char buf[64];
+ str += 5;
+ ptr = buf;
+ size = 0;
+ if (*str == '\'' || *str == '\"') {
+ c = *str++;
+ while (*str && *str != c) {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ if (*str == c)
+ str++;
+ } else {
+ while (*str && *str != ',') {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ *ptr = '\0';
+ }
+ snd_ctl_elem_id_set_name(id, buf);
+ } else if (!strncasecmp(str, "index=", 6)) {
+ str += 6;
+ snd_ctl_elem_id_set_index(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "device=", 7)) {
+ str += 7;
+ snd_ctl_elem_id_set_device(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ } else if (!strncasecmp(str, "subdevice=", 10)) {
+ str += 10;
+ snd_ctl_elem_id_set_subdevice(id, atoi(str));
+ while (isdigit(*str))
+ str++;
+ }
+ if (*str == ',') {
+ str++;
+ } else {
+ if (*str)
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
+static int parse_simple_id(const char *str, snd_mixer_selem_id_t *sid)
+{
+ int c, size;
+ char buf[128];
+ char *ptr = buf;
+
+ while (*str == ' ' || *str == '\t')
+ str++;
+ if (!(*str))
+ return -EINVAL;
+ size = 1; /* for '\0' */
+ if (*str != '"' && *str != '\'') {
+ while (*str && *str != ',') {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ } else {
+ c = *str++;
+ while (*str && *str != c) {
+ if (size < (int)sizeof(buf)) {
+ *ptr++ = *str;
+ size++;
+ }
+ str++;
+ }
+ if (*str == c)
+ str++;
+ }
+ if (*str == '\0') {
+ snd_mixer_selem_id_set_index(sid, 0);
+ *ptr = 0;
+ goto _set;
+ }
+ if (*str != ',')
+ return -EINVAL;
+ *ptr = 0; /* terminate the string */
+ str++;
+ if (!isdigit(*str))
+ return -EINVAL;
+ snd_mixer_selem_id_set_index(sid, atoi(str));
+ _set:
+ snd_mixer_selem_id_set_name(sid, buf);
+ return 0;
+}
+
+static int get_ctl_enum_item_index(snd_ctl_t *handle, snd_ctl_elem_info_t *info,
+ char **ptrp)
+{
+ char *ptr = *ptrp;
+ int items, i, len;
+ const char *name;
+
+ items = snd_ctl_elem_info_get_items(info);
+ if (items <= 0)
+ return -1;
+
+ for (i = 0; i < items; i++) {
+ snd_ctl_elem_info_set_item(info, i);
+ if (snd_ctl_elem_info(handle, info) < 0)
+ return -1;
+ name = snd_ctl_elem_info_get_item_name(info);
+ len = strlen(name);
+ if (! strncmp(name, ptr, len)) {
+ if (! ptr[len] || ptr[len] == ',' || ptr[len] == '\n') {
+ ptr += len;
+ *ptrp = ptr;
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+static int cset(int argc, char *argv[], int roflag, int keep_handle)
+{
+ int err;
+ static snd_ctl_t *handle = NULL;
+ snd_ctl_elem_info_t *info;
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_value_t *control;
+ char *ptr;
+ unsigned int idx, count;
+ long tmp;
+ snd_ctl_elem_type_t type;
+ snd_ctl_elem_info_alloca(&info);
+ snd_ctl_elem_id_alloca(&id);
+ snd_ctl_elem_value_alloca(&control);
+
+ if (argc < 1) {
+ fprintf(stderr, "Specify a full control identifier: [[iface=<iface>,][name='name',][index=<index>,][device=<device>,][subdevice=<subdevice>]]|[numid=<numid>]\n");
+ return -EINVAL;
+ }
+ if (parse_control_id(argv[0], id)) {
+ fprintf(stderr, "Wrong control identifier: %s\n", argv[0]);
+ return -EINVAL;
+ }
+ if (debugflag) {
+ printf("VERIFY ID: ");
+ show_control_id(id);
+ printf("\n");
+ }
+ if (handle == NULL &&
+ (err = snd_ctl_open(&handle, card, 0)) < 0) {
+ error("Control %s open error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ snd_ctl_elem_info_set_id(info, id);
+ if ((err = snd_ctl_elem_info(handle, info)) < 0) {
+ if (ignore_error)
+ return 0;
+ error("Cannot find the given element from control %s\n", card);
+ if (! keep_handle) {
+ snd_ctl_close(handle);
+ handle = NULL;
+ }
+ return err;
+ }
+ snd_ctl_elem_info_get_id(info, id); /* FIXME: Remove it when hctl find works ok !!! */
+ type = snd_ctl_elem_info_get_type(info);
+ count = snd_ctl_elem_info_get_count(info);
+ snd_ctl_elem_value_set_id(control, id);
+
+ if (!roflag) {
+ ptr = argv[1];
+ for (idx = 0; idx < count && idx < 128 && ptr && *ptr; idx++) {
+ switch (type) {
+ case SND_CTL_ELEM_TYPE_BOOLEAN:
+ tmp = 0;
+ if (!strncasecmp(ptr, "on", 2) || !strncasecmp(ptr, "up", 2)) {
+ tmp = 1;
+ ptr += 2;
+ } else if (!strncasecmp(ptr, "yes", 3)) {
+ tmp = 1;
+ ptr += 3;
+ } else if (!strncasecmp(ptr, "toggle", 6)) {
+ tmp = snd_ctl_elem_value_get_boolean(control, idx);
+ tmp = tmp > 0 ? 0 : 1;
+ ptr += 6;
+ } else if (isdigit(*ptr)) {
+ tmp = atoi(ptr) > 0 ? 1 : 0;
+ while (isdigit(*ptr))
+ ptr++;
+ } else {
+ while (*ptr && *ptr != ',')
+ ptr++;
+ }
+ snd_ctl_elem_value_set_boolean(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER:
+ tmp = get_integer(&ptr,
+ snd_ctl_elem_info_get_min(info),
+ snd_ctl_elem_info_get_max(info));
+ snd_ctl_elem_value_set_integer(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_INTEGER64:
+ tmp = get_integer64(&ptr,
+ snd_ctl_elem_info_get_min64(info),
+ snd_ctl_elem_info_get_max64(info));
+ snd_ctl_elem_value_set_integer64(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_ENUMERATED:
+ tmp = get_ctl_enum_item_index(handle, info, &ptr);
+ if (tmp < 0)
+ tmp = get_integer(&ptr, 0, snd_ctl_elem_info_get_items(info) - 1);
+ snd_ctl_elem_value_set_enumerated(control, idx, tmp);
+ break;
+ case SND_CTL_ELEM_TYPE_BYTES:
+ tmp = get_integer(&ptr, 0, 255);
+ snd_ctl_elem_value_set_byte(control, idx, tmp);
+ break;
+ default:
+ break;
+ }
+ if (!strchr(argv[1], ','))
+ ptr = argv[1];
+ else if (*ptr == ',')
+ ptr++;
+ }
+ if ((err = snd_ctl_elem_write(handle, control)) < 0) {
+ if (!ignore_error)
+ error("Control %s element write error: %s\n", card, snd_strerror(err));
+ if (!keep_handle) {
+ snd_ctl_close(handle);
+ handle = NULL;
+ }
+ return ignore_error ? 0 : err;
+ }
+ }
+ if (! keep_handle) {
+ snd_ctl_close(handle);
+ handle = NULL;
+ }
+ if (!quiet) {
+ snd_hctl_t *hctl;
+ snd_hctl_elem_t *elem;
+ if ((err = snd_hctl_open(&hctl, card, 0)) < 0) {
+ error("Control %s open error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ if ((err = snd_hctl_load(hctl)) < 0) {
+ error("Control %s load error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ elem = snd_hctl_find_elem(hctl, id);
+ if (elem)
+ show_control(" ", elem, LEVEL_BASIC | LEVEL_ID);
+ else
+ printf("Could not find the specified element\n");
+ snd_hctl_close(hctl);
+ }
+ return 0;
+}
+
+typedef struct channel_mask {
+ char *name;
+ unsigned int mask;
+} channel_mask_t;
+static const channel_mask_t chanmask[] = {
+ {"frontleft", 1 << SND_MIXER_SCHN_FRONT_LEFT},
+ {"frontright", 1 << SND_MIXER_SCHN_FRONT_RIGHT},
+ {"frontcenter", 1 << SND_MIXER_SCHN_FRONT_CENTER},
+ {"front", ((1 << SND_MIXER_SCHN_FRONT_LEFT) |
+ (1 << SND_MIXER_SCHN_FRONT_RIGHT))},
+ {"center", 1 << SND_MIXER_SCHN_FRONT_CENTER},
+ {"rearleft", 1 << SND_MIXER_SCHN_REAR_LEFT},
+ {"rearright", 1 << SND_MIXER_SCHN_REAR_RIGHT},
+ {"rear", ((1 << SND_MIXER_SCHN_REAR_LEFT) |
+ (1 << SND_MIXER_SCHN_REAR_RIGHT))},
+ {"woofer", 1 << SND_MIXER_SCHN_WOOFER},
+ {NULL, 0}
+};
+
+static unsigned int channels_mask(char **arg, unsigned int def)
+{
+ const channel_mask_t *c;
+
+ for (c = chanmask; c->name; c++) {
+ if (strncasecmp(*arg, c->name, strlen(c->name)) == 0) {
+ while (**arg != '\0' && **arg != ',' && **arg != ' ' && **arg != '\t')
+ (*arg)++;
+ if (**arg == ',' || **arg == ' ' || **arg == '\t')
+ (*arg)++;
+ return c->mask;
+ }
+ }
+ return def;
+}
+
+static unsigned int dir_mask(char **arg, unsigned int def)
+{
+ int findend = 0;
+
+ if (strncasecmp(*arg, "playback", 8) == 0)
+ def = findend = 1;
+ else if (strncasecmp(*arg, "capture", 8) == 0)
+ def = findend = 2;
+ if (findend) {
+ while (**arg != '\0' && **arg != ',' && **arg != ' ' && **arg != '\t')
+ (*arg)++;
+ if (**arg == ',' || **arg == ' ' || **arg == '\t')
+ (*arg)++;
+ }
+ return def;
+}
+
+static int get_enum_item_index(snd_mixer_elem_t *elem, char **ptrp)
+{
+ char *ptr = *ptrp;
+ int items, i, len;
+ char name[40];
+
+ items = snd_mixer_selem_get_enum_items(elem);
+ if (items <= 0)
+ return -1;
+
+ for (i = 0; i < items; i++) {
+ if (snd_mixer_selem_get_enum_item_name(elem, i, sizeof(name)-1, name) < 0)
+ continue;
+ len = strlen(name);
+ if (! strncmp(name, ptr, len)) {
+ if (! ptr[len] || ptr[len] == ',' || ptr[len] == '\n') {
+ ptr += len;
+ *ptrp = ptr;
+ return i;
+ }
+ }
+ }
+ return -1;
+}
+
+static int sset_enum(snd_mixer_elem_t *elem, unsigned int argc, char **argv)
+{
+ unsigned int idx, chn = 0;
+ int check_flag = ignore_error ? 0 : -1;
+
+ 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++;
+ }
+ }
+ 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 = ignore_error ? 0 : -1;
+
+ for (idx = 1; idx < argc; idx++) {
+ char *ptr = argv[idx], *optr;
+ int multi, firstchn = 1;
+ channels = channels_mask(&ptr, channels);
+ if (*ptr == '\0')
+ continue;
+ dir = dir_mask(&ptr, dir);
+ if (*ptr == '\0')
+ continue;
+ multi = (strchr(ptr, ',') != NULL);
+ optr = ptr;
+ for (chn = 0; chn <= SND_MIXER_SCHN_LAST; chn++) {
+ char *sptr = NULL;
+ int ival;
+
+ if (!(channels & (1 << chn)))
+ continue;
+
+ if ((dir & 1) && snd_mixer_selem_has_playback_channel(elem, chn)) {
+ sptr = ptr;
+ if (!strncmp(ptr, "mute", 4) && snd_mixer_selem_has_playback_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_playback_switch(elem, chn, get_bool_simple(&ptr, "mute", 1, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "off", 3) && snd_mixer_selem_has_playback_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_playback_switch(elem, chn, get_bool_simple(&ptr, "off", 1, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "unmute", 6) && snd_mixer_selem_has_playback_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_playback_switch(elem, chn, get_bool_simple(&ptr, "unmute", 0, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "on", 2) && snd_mixer_selem_has_playback_switch(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_playback_switch(elem, chn, get_bool_simple(&ptr, "on", 0, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "toggle", 6) && snd_mixer_selem_has_playback_switch(elem)) {
+ if (firstchn || !snd_mixer_selem_has_playback_switch_joined(elem)) {
+ snd_mixer_selem_get_playback_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_playback_switch(elem, chn, (ival ? 1 : 0) ^ 1) >= 0)
+ check_flag = 1;
+ }
+ simple_skip_word(&ptr, "toggle");
+ } else if (isdigit(*ptr) || *ptr == '-' || *ptr == '+') {
+ if (set_volume_simple(elem, chn, &ptr, 0) >= 0)
+ check_flag = 1;
+ } else if (simple_skip_word(&ptr, "cap") || simple_skip_word(&ptr, "rec") ||
+ simple_skip_word(&ptr, "nocap") || simple_skip_word(&ptr, "norec")) {
+ /* nothing */
+ } else {
+ okflag &= ~1;
+ }
+ }
+ if ((dir & 2) && snd_mixer_selem_has_capture_channel(elem, chn)) {
+ if (sptr != NULL)
+ ptr = sptr;
+ sptr = ptr;
+ if (!strncmp(ptr, "cap", 3) && snd_mixer_selem_has_capture_switch(elem)) {
+ snd_mixer_selem_get_capture_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_capture_switch(elem, chn, get_bool_simple(&ptr, "cap", 0, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "rec", 3) && snd_mixer_selem_has_capture_switch(elem)) {
+ snd_mixer_selem_get_capture_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_capture_switch(elem, chn, get_bool_simple(&ptr, "rec", 0, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "nocap", 5) && snd_mixer_selem_has_capture_switch(elem)) {
+ snd_mixer_selem_get_capture_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_capture_switch(elem, chn, get_bool_simple(&ptr, "nocap", 1, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "norec", 5) && snd_mixer_selem_has_capture_switch(elem)) {
+ snd_mixer_selem_get_capture_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_capture_switch(elem, chn, get_bool_simple(&ptr, "norec", 1, ival)) >= 0)
+ check_flag = 1;
+ } else if (!strncmp(ptr, "toggle", 6) && snd_mixer_selem_has_capture_switch(elem)) {
+ if (firstchn || !snd_mixer_selem_has_capture_switch_joined(elem)) {
+ snd_mixer_selem_get_capture_switch(elem, chn, &ival);
+ if (snd_mixer_selem_set_capture_switch(elem, chn, (ival ? 1 : 0) ^ 1) >= 0)
+ check_flag = 1;
+ }
+ simple_skip_word(&ptr, "toggle");
+ } else if (isdigit(*ptr) || *ptr == '-' || *ptr == '+') {
+ if (set_volume_simple(elem, chn, &ptr, 1) >= 0)
+ check_flag = 1;
+ } else if (simple_skip_word(&ptr, "mute") || simple_skip_word(&ptr, "off") ||
+ simple_skip_word(&ptr, "unmute") || simple_skip_word(&ptr, "on")) {
+ /* nothing */
+ } else {
+ okflag &= ~2;
+ }
+ }
+ if (okflag == 0) {
+ if (debugflag) {
+ if (dir & 1)
+ error("Unknown playback setup '%s'..", ptr);
+ if (dir & 2)
+ error("Unknown capture setup '%s'..", ptr);
+ }
+ return 0; /* just skip it */
+ }
+ if (!multi)
+ ptr = optr;
+ firstchn = 0;
+ }
+ }
+ 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;
+ }
+ }
+ 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 err < 0 ? 1 : 0;
+}
+
+static void events_info(snd_hctl_elem_t *helem)
+{
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_id_alloca(&id);
+ snd_hctl_elem_get_id(helem, id);
+ printf("event info: ");
+ show_control_id(id);
+ printf("\n");
+}
+
+static void events_value(snd_hctl_elem_t *helem)
+{
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_id_alloca(&id);
+ snd_hctl_elem_get_id(helem, id);
+ printf("event value: ");
+ show_control_id(id);
+ printf("\n");
+}
+
+static void events_remove(snd_hctl_elem_t *helem)
+{
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_id_alloca(&id);
+ snd_hctl_elem_get_id(helem, id);
+ printf("event remove: ");
+ show_control_id(id);
+ printf("\n");
+}
+
+static int element_callback(snd_hctl_elem_t *elem, unsigned int mask)
+{
+ if (mask == SND_CTL_EVENT_MASK_REMOVE) {
+ events_remove(elem);
+ return 0;
+ }
+ if (mask & SND_CTL_EVENT_MASK_INFO)
+ events_info(elem);
+ if (mask & SND_CTL_EVENT_MASK_VALUE)
+ events_value(elem);
+ return 0;
+}
+
+static void events_add(snd_hctl_elem_t *helem)
+{
+ snd_ctl_elem_id_t *id;
+ snd_ctl_elem_id_alloca(&id);
+ snd_hctl_elem_get_id(helem, id);
+ printf("event add: ");
+ show_control_id(id);
+ printf("\n");
+ snd_hctl_elem_set_callback(helem, element_callback);
+}
+
+static int ctl_callback(snd_hctl_t *ctl, unsigned int mask,
+ snd_hctl_elem_t *elem)
+{
+ if (mask & SND_CTL_EVENT_MASK_ADD)
+ events_add(elem);
+ return 0;
+}
+
+static int events(int argc ATTRIBUTE_UNUSED, char *argv[] ATTRIBUTE_UNUSED)
+{
+ snd_hctl_t *handle;
+ snd_hctl_elem_t *helem;
+ int err;
+
+ if ((err = snd_hctl_open(&handle, card, 0)) < 0) {
+ error("Control %s open error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ snd_hctl_set_callback(handle, ctl_callback);
+ if ((err = snd_hctl_load(handle)) < 0) {
+ error("Control %s hbuild error: %s\n", card, snd_strerror(err));
+ return err;
+ }
+ for (helem = snd_hctl_first_elem(handle); helem; helem = snd_hctl_elem_next(helem)) {
+ snd_hctl_elem_set_callback(helem, element_callback);
+ }
+ printf("Ready to listen...\n");
+ while (1) {
+ int res = snd_hctl_wait(handle, -1);
+ if (res >= 0) {
+ printf("Poll ok: %i\n", res);
+ res = snd_hctl_handle_events(handle);
+ assert(res > 0);
+ }
+ }
+ snd_hctl_close(handle);
+ return 0;
+}
+
+static void sevents_value(snd_mixer_selem_id_t *sid)
+{
+ printf("event value: '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
+}
+
+static void sevents_info(snd_mixer_selem_id_t *sid)
+{
+ printf("event info: '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
+}
+
+static void sevents_remove(snd_mixer_selem_id_t *sid)
+{
+ printf("event remove: '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
+}
+
+static int melem_event(snd_mixer_elem_t *elem, unsigned int mask)
+{
+ snd_mixer_selem_id_t *sid;
+ snd_mixer_selem_id_alloca(&sid);
+ snd_mixer_selem_get_id(elem, sid);
+ if (mask == SND_CTL_EVENT_MASK_REMOVE) {
+ sevents_remove(sid);
+ return 0;
+ }
+ if (mask & SND_CTL_EVENT_MASK_INFO)
+ sevents_info(sid);
+ if (mask & SND_CTL_EVENT_MASK_VALUE)
+ sevents_value(sid);
+ return 0;
+}
+
+static void sevents_add(snd_mixer_elem_t *elem)
+{
+ snd_mixer_selem_id_t *sid;
+ snd_mixer_selem_id_alloca(&sid);
+ snd_mixer_selem_get_id(elem, sid);
+ printf("event add: '%s',%i\n", snd_mixer_selem_id_get_name(sid), snd_mixer_selem_id_get_index(sid));
+ snd_mixer_elem_set_callback(elem, melem_event);
+}
+
+static int mixer_event(snd_mixer_t *mixer, unsigned int mask,
+ snd_mixer_elem_t *elem)
+{
+ if (mask & SND_CTL_EVENT_MASK_ADD)
+ sevents_add(elem);
+ return 0;
+}
+
+static int sevents(int argc ATTRIBUTE_UNUSED, char *argv[] ATTRIBUTE_UNUSED)
+{
+ snd_mixer_t *handle;
+ int err;
+
+ if ((err = snd_mixer_open(&handle, 0)) < 0) {
+ error("Mixer %s open error: %s", 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);
+ 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);
+ return err;
+ }
+ snd_mixer_set_callback(handle, mixer_event);
+ err = snd_mixer_load(handle);
+ if (err < 0) {
+ error("Mixer %s load error: %s", card, snd_strerror(err));
+ snd_mixer_close(handle);
+ return err;
+ }
+
+ printf("Ready to listen...\n");
+ while (1) {
+ int res;
+ res = snd_mixer_wait(handle, -1);
+ if (res >= 0) {
+ printf("Poll ok: %i\n", res);
+ res = snd_mixer_handle_events(handle);
+ assert(res >= 0);
+ }
+ }
+ snd_mixer_close(handle);
+ return 0;
+}
+
+/*
+ * split a line into tokens
+ * the content in the line buffer is modified
+ */
+static int split_line(char *buf, char **token, int max_token)
+{
+ char *dst;
+ int n, esc, quote;
+
+ for (n = 0; n < max_token; n++) {
+ while (isspace(*buf))
+ buf++;
+ if (! *buf || *buf == '\n')
+ return n;
+ /* skip comments */
+ if (*buf == '#' || *buf == '!')
+ return n;
+ esc = 0;
+ quote = 0;
+ token[n] = buf;
+ for (dst = buf; *buf && *buf != '\n'; buf++) {
+ if (esc)
+ esc = 0;
+ else if (isspace(*buf) && !quote) {
+ buf++;
+ break;
+ } else if (*buf == '\\') {
+ esc = 1;
+ continue;
+ } else if (*buf == '\'' || *buf == '"') {
+ if (! quote) {
+ quote = *buf;
+ continue;
+ } else if (*buf == quote) {
+ quote = 0;
+ continue;
+ }
+ }
+ *dst++ = *buf;
+ }
+ *dst = 0;
+ }
+ return n;
+}
+
+#define MAX_ARGS 32
+
+static int exec_stdin(void)
+{
+ int narg;
+ char buf[256], *args[MAX_ARGS];
+ int err = 0;
+
+ /* quiet = 1; */
+ ignore_error = 1;
+
+ while (fgets(buf, sizeof(buf), stdin)) {
+ narg = split_line(buf, args, MAX_ARGS);
+ if (narg > 0) {
+ if (!strcmp(args[0], "sset") || !strcmp(args[0], "set"))
+ err = sset(narg - 1, args + 1, 0, 1);
+ else if (!strcmp(args[0], "cset"))
+ err = cset(narg - 1, args + 1, 0, 1);
+ if (err < 0)
+ return 1;
+ }
+ }
+ return 0;
+}
+
+
+int main(int argc, char *argv[])
+{
+ int morehelp, level = 0;
+ int read_stdin = 0;
+ static const struct option long_option[] =
+ {
+ {"help", 0, NULL, 'h'},
+ {"card", 1, NULL, 'c'},
+ {"device", 1, NULL, 'D'},
+ {"quiet", 0, NULL, 'q'},
+ {"inactive", 0, NULL, 'i'},
+ {"debug", 0, NULL, 'd'},
+ {"nocheck", 0, NULL, 'n'},
+ {"version", 0, NULL, 'v'},
+ {"abstract", 1, NULL, 'a'},
+ {"stdin", 0, NULL, 's'},
+ {NULL, 0, NULL, 0},
+ };
+
+ morehelp = 0;
+ while (1) {
+ int c;
+
+ if ((c = getopt_long(argc, argv, "hc:D:qidnva:s", long_option, NULL)) < 0)
+ break;
+ switch (c) {
+ case 'h':
+ help();
+ return 0;
+ case 'c':
+ {
+ int i;
+ i = snd_card_get_index(optarg);
+ if (i >= 0 && i < 32)
+ sprintf(card, "hw:%i", i);
+ else {
+ fprintf(stderr, "Invalid card number.\n");
+ morehelp++;
+ }
+ }
+ break;
+ case 'D':
+ strncpy(card, optarg, sizeof(card)-1);
+ card[sizeof(card)-1] = '\0';
+ break;
+ case 'q':
+ quiet = 1;
+ break;
+ case 'i':
+ level |= LEVEL_INACTIVE;
+ break;
+ case 'd':
+ debugflag = 1;
+ break;
+ case 'n':
+ no_check = 1;
+ break;
+ case 'v':
+ printf("amixer version " SND_UTIL_VERSION_STR "\n");
+ return 1;
+ case 'a':
+ smixer_level = 1;
+ memset(&smixer_options, 0, sizeof(smixer_options));
+ smixer_options.ver = 1;
+ if (!strcmp(optarg, "none"))
+ smixer_options.abstract = SND_MIXER_SABSTRACT_NONE;
+ else if (!strcmp(optarg, "basic"))
+ smixer_options.abstract = SND_MIXER_SABSTRACT_BASIC;
+ else {
+ fprintf(stderr, "Select correct abstraction level (none or basic)...\n");
+ morehelp++;
+ }
+ break;
+ case 's':
+ read_stdin = 1;
+ break;
+ default:
+ fprintf(stderr, "Invalid switch or option needs an argument.\n");
+ morehelp++;
+ }
+ }
+ if (morehelp) {
+ help();
+ return 1;
+ }
+ smixer_options.device = card;
+
+ if (read_stdin)
+ return exec_stdin();
+
+ if (argc - optind <= 0) {
+ return selems(LEVEL_BASIC | level) ? 1 : 0;
+ }
+ if (!strcmp(argv[optind], "help")) {
+ return help() ? 1 : 0;
+ } else if (!strcmp(argv[optind], "info")) {
+ return info() ? 1 : 0;
+ } else if (!strcmp(argv[optind], "controls")) {
+ return controls(level) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "contents")) {
+ return controls(LEVEL_BASIC | level) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "scontrols") || !strcmp(argv[optind], "simple")) {
+ return selems(level) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "scontents")) {
+ return selems(LEVEL_BASIC | level) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "sset") || !strcmp(argv[optind], "set")) {
+ return sset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL, 0, 0) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "sget") || !strcmp(argv[optind], "get")) {
+ return sset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL, 1, 0) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "cset")) {
+ return cset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL, 0, 0) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "cget")) {
+ return cset(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL, 1, 0) ? 1 : 0;
+ } else if (!strcmp(argv[optind], "events")) {
+ return events(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL);
+ } else if (!strcmp(argv[optind], "sevents")) {
+ return sevents(argc - optind - 1, argc - optind > 1 ? argv + optind + 1 : NULL);
+ } else {
+ fprintf(stderr, "amixer: Unknown command '%s'...\n", argv[optind]);
+ }
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-24 06:02:10 +0000