1 files changed, 90 insertions, 0 deletions
diff --git a/src/detection/sound/sound_bsd.c b/src/detection/sound/sound_bsd.c
new file mode 100644
index 0000000..cbac868
--- /dev/null
+++ b/src/detection/sound/sound_bsd.c
@@ -0,0 +1,90 @@
+#include "sound.h"
+#include "common/io.h"
+#include "common/sysctl.h"
+
+#include <fcntl.h>
+#include <sys/soundcard.h>
+#include <unistd.h>
+
+const char* ffDetectSound(FFSoundOptions* options, FFlist* devices) {
+#ifndef __NetBSD__
+    int defaultDev = ffSysctlGetInt("hw.snd.default_unit", -1);
+    if (defaultDev == -1) {
+        return "sysctl(hw.snd.default_unit) failed";
+    }
+#else
+    int defaultDev;
+    {
+        char mixerp[12];
+        ssize_t plen = readlink("/dev/mixer", mixerp, ARRAY_SIZE(mixerp));
+        if (plen < 6) {
+            return "readlink(/dev/mixer) failed";
+        }
+        defaultDev = mixerp[plen - 1] - '0';
+        if (defaultDev < 0 || defaultDev > 9) {
+            return "Invalid mixer device";
+        }
+    }
+#endif
+
+    char path[] = "/dev/mixer0";
+
+    struct oss_sysinfo info = { .nummixers = 9 };
+
+    for (int idev = 0; idev <= info.nummixers; ++idev) {
+        bool isMain = idev == defaultDev;
+        if ((options->soundType & FF_SOUND_TYPE_MAIN) && !isMain) {
+            continue;
+        }
+
+        path[strlen("/dev/mixer")] = (char) ('0' + idev);
+        FF_AUTO_CLOSE_FD int fd = open(path, O_RDWR | O_CLOEXEC);
+        if (fd < 0) {
+            break;
+        }
+
+        if (idev == 0) {
+            if (ioctl(fd, SNDCTL_SYSINFO, &info) != 0) {
+                return "ioctl(SNDCTL_SYSINFO) failed";
+            }
+        }
+
+        uint32_t devmask = 0;
+        if (ioctl(fd, SOUND_MIXER_READ_DEVMASK, &devmask) < 0) {
+            continue;
+        }
+        if (!(devmask & SOUND_MASK_VOLUME)) {
+            continue;
+        }
+
+#if defined(SOUND_MIXER_MUTE) && (SOUND_MIXER_MUTE != SOUND_MIXER_NONE)
+    #define FF_SOUND_HAVE_MIXER_MUTE 1
+        uint32_t mutemask = 0;
+        ioctl(fd, SOUND_MIXER_READ_MUTE, &mutemask);
+#endif
+
+        struct oss_card_info ci = { .card = idev };
+        if (ioctl(fd, SNDCTL_CARDINFO, &ci) < 0) {
+            continue;
+        }
+
+        uint32_t volume;
+        if (ioctl(fd, SOUND_MIXER_READ_VOLUME, &volume) < 0) {
+            continue;
+        }
+
+        FFSoundDevice* device = FF_LIST_ADD(FFSoundDevice, *devices);
+        ffStrbufInitS(&device->identifier, path);
+        ffStrbufInitF(&device->name, "%s %s", ci.longname, ci.hw_info);
+        ffStrbufTrimRightSpace(&device->name);
+        ffStrbufInitF(&device->platformApi, "%s %s", info.product, info.version);
+        device->volume =
+#ifdef FF_SOUND_HAVE_MIXER_MUTE
+            mutemask & SOUND_MASK_VOLUME ? 0 :
+#endif
+                                         ((uint8_t) volume /*left*/ + (uint8_t) (volume >> 8) /*right*/) / 2;
+        device->type = FF_SOUND_TYPE_ACTIVE | (isMain ? FF_SOUND_TYPE_MAIN : FF_SOUND_TYPE_NONE);
+    }
+
+    return NULL;
+}