From c1dc896c806693a4a368abf59e6890d32d520074 Mon Sep 17 00:00:00 2001
From: Ingo Feinerer <feinerer@logic.at>
Date: Fri, 8 Feb 2019 15:37:17 +0100
Subject: Add native OpenBSD support for mute/volume
Based on functionality in dstat by Joerg Jung.
---
components/volume.c | 118 ++++++++++++++++++++++++++++++++++++++++------------
1 file changed, 91 insertions(+), 27 deletions(-)
(limited to 'components')
diff --git a/components/volume.c b/components/volume.c
index 8a70b20..61cec90 100644
--- a/components/volume.c
+++ b/components/volume.c
@@ -2,44 +2,108 @@
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
-#if defined(__OpenBSD__)
- #include <soundcard.h>
-#else
- #include <sys/soundcard.h>
-#endif
#include <sys/ioctl.h>
#include <unistd.h>
#include "../util.h"
-const char *
-vol_perc(const char *card)
-{
- size_t i;
- int v, afd, devmask;
- char *vnames[] = SOUND_DEVICE_NAMES;
+#if defined(__OpenBSD__)
+ #include <sys/audioio.h>
- if ((afd = open(card, O_RDONLY | O_NONBLOCK)) < 0) {
- warn("open '%s':", card);
- return NULL;
- }
+ const char *
+ vol_perc(const char *card)
+ {
+ static int cls = -1;
+ mixer_devinfo_t mdi;
+ mixer_ctrl_t mc;
+ int afd = -1, m = -1, v = -1;
- if (ioctl(afd, (int)SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
- warn("ioctl 'SOUND_MIXER_READ_DEVMASK':");
- close(afd);
- return NULL;
- }
- for (i = 0; i < LEN(vnames); i++) {
- if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
- if (ioctl(afd, MIXER_READ(i), &v) < 0) {
- warn("ioctl 'MIXER_READ(%ld)':", i);
+ if ((afd = open(card, O_RDONLY)) < 0) {
+ warn("open '%s':", card);
+ return NULL;
+ }
+
+ for (mdi.index = 0; cls == -1; mdi.index++) {
+ if (ioctl(afd, AUDIO_MIXER_DEVINFO, &mdi) < 0) {
+ warn("ioctl 'AUDIO_MIXER_DEVINFO':");
close(afd);
return NULL;
}
+ if (mdi.type == AUDIO_MIXER_CLASS &&
+ !strncmp(mdi.label.name,
+ AudioCoutputs,
+ MAX_AUDIO_DEV_LEN))
+ cls = mdi.index;
+ }
+ for (mdi.index = 0; v == -1 || m == -1; mdi.index++) {
+ if (ioctl(afd, AUDIO_MIXER_DEVINFO, &mdi) < 0) {
+ warn("ioctl 'AUDIO_MIXER_DEVINFO':");
+ close(afd);
+ return NULL;
+ }
+ if (mdi.mixer_class == cls &&
+ ((mdi.type == AUDIO_MIXER_VALUE &&
+ !strncmp(mdi.label.name,
+ AudioNmaster,
+ MAX_AUDIO_DEV_LEN)) ||
+ (mdi.type == AUDIO_MIXER_ENUM &&
+ !strncmp(mdi.label.name,
+ AudioNmute,
+ MAX_AUDIO_DEV_LEN)))) {
+ mc.dev = mdi.index, mc.type = mdi.type;
+ if (ioctl(afd, AUDIO_MIXER_READ, &mc) < 0) {
+ warn("ioctl 'AUDIO_MIXER_READ':");
+ close(afd);
+ return NULL;
+ }
+ if (mc.type == AUDIO_MIXER_VALUE)
+ v = mc.un.value.num_channels == 1 ?
+ mc.un.value.level[AUDIO_MIXER_LEVEL_MONO] :
+ (mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] >
+ mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT] ?
+ mc.un.value.level[AUDIO_MIXER_LEVEL_LEFT] :
+ mc.un.value.level[AUDIO_MIXER_LEVEL_RIGHT]);
+ else if (mc.type == AUDIO_MIXER_ENUM)
+ m = mc.un.ord;
+ }
}
+
+ close(afd);
+
+ return bprintf("%d", m ? 0 : v * 100 / 255);
}
+#else
+ #include <sys/soundcard.h>
+
+ const char *
+ vol_perc(const char *card)
+ {
+ size_t i;
+ int v, afd, devmask;
+ char *vnames[] = SOUND_DEVICE_NAMES;
- close(afd);
+ if ((afd = open(card, O_RDONLY | O_NONBLOCK)) < 0) {
+ warn("open '%s':", card);
+ return NULL;
+ }
- return bprintf("%d", v & 0xff);
-}
+ if (ioctl(afd, (int)SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
+ warn("ioctl 'SOUND_MIXER_READ_DEVMASK':");
+ close(afd);
+ return NULL;
+ }
+ for (i = 0; i < LEN(vnames); i++) {
+ if (devmask & (1 << i) && !strcmp("vol", vnames[i])) {
+ if (ioctl(afd, MIXER_READ(i), &v) < 0) {
+ warn("ioctl 'MIXER_READ(%ld)':", i);
+ close(afd);
+ return NULL;
+ }
+ }
+ }
+
+ close(afd);
+
+ return bprintf("%d", v & 0xff);
+ }
+#endif
--
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