From 502d3f551bb8a168b6686b6d0c833a5f6e40c98c Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Mon, 20 Feb 2006 16:13:10 +0000
Subject: Hardware volume support for Solaris.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@524 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/modules/module-solaris.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'src/modules/module-solaris.c')

diff --git a/src/modules/module-solaris.c b/src/modules/module-solaris.c
index e0745fc0..7356cb7b 100644
--- a/src/modules/module-solaris.c
+++ b/src/modules/module-solaris.c
@@ -258,6 +258,40 @@ static pa_usec_t source_get_latency_cb(pa_source *s) {
     return r;
 }
 
+static int sink_get_hw_volume_cb(pa_sink *s) {
+    struct userdata *u = s->userdata;
+    audio_info_t info;
+    int err;
+
+    err = ioctl(u->fd, AUDIO_GETINFO, &info);
+    assert(err >= 0);
+
+    pa_cvolume_set(&s->hw_volume, s->hw_volume.channels,
+        info.play.gain * PA_VOLUME_NORM / AUDIO_MAX_GAIN);
+
+    return 0;
+}
+
+static int sink_set_hw_volume_cb(pa_sink *s) {
+    struct userdata *u = s->userdata;
+    audio_info_t info;
+
+    AUDIO_INITINFO(&info);
+
+    info.play.gain = pa_cvolume_avg(&s->hw_volume) * AUDIO_MAX_GAIN / PA_VOLUME_NORM;
+    assert(info.play.gain <= AUDIO_MAX_GAIN);
+
+    if (ioctl(u->fd, AUDIO_SETINFO, &info) < 0) {
+        if (errno == EINVAL)
+            pa_log(__FILE__": AUDIO_SETINFO: Unsupported volume.\n");
+        else
+            pa_log(__FILE__": AUDIO_SETINFO: %s\n", strerror(errno));
+        return -1;
+    }
+
+    return 0;
+}
+
 static int pa_solaris_auto_format(int fd, int mode, pa_sample_spec *ss) {
     audio_info_t info;
 
@@ -411,6 +445,8 @@ int pa__init(pa_core *c, pa_module*m) {
         u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, NULL);
         assert(u->sink);
         u->sink->get_latency = sink_get_latency_cb;
+        u->sink->get_hw_volume = sink_get_hw_volume_cb;
+        u->sink->set_hw_volume = sink_set_hw_volume_cb;
         u->sink->userdata = u;
         pa_sink_set_owner(u->sink, m);
         u->sink->description = pa_sprintf_malloc("Solaris PCM on '%s'", p);
-- 
cgit