summaryrefslogtreecommitdiffstats
path: root/kernel/sound/pci/au88x0/au88x0_mixer.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/sound/pci/au88x0/au88x0_mixer.c')
-rw-r--r--kernel/sound/pci/au88x0/au88x0_mixer.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/kernel/sound/pci/au88x0/au88x0_mixer.c b/kernel/sound/pci/au88x0/au88x0_mixer.c
new file mode 100644
index 000000000..a58298cfe
--- /dev/null
+++ b/kernel/sound/pci/au88x0/au88x0_mixer.c
@@ -0,0 +1,43 @@
+/*
+ * Vortex Mixer support.
+ *
+ * There is much more than just the AC97 mixer...
+ *
+ */
+
+#include <linux/time.h>
+#include <linux/init.h>
+#include <sound/core.h>
+#include "au88x0.h"
+
+static int remove_ctl(struct snd_card *card, const char *name)
+{
+ struct snd_ctl_elem_id id;
+ memset(&id, 0, sizeof(id));
+ strcpy(id.name, name);
+ id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+ return snd_ctl_remove_id(card, &id);
+}
+
+static int snd_vortex_mixer(vortex_t *vortex)
+{
+ struct snd_ac97_bus *pbus;
+ struct snd_ac97_template ac97;
+ int err;
+ static struct snd_ac97_bus_ops ops = {
+ .write = vortex_codec_write,
+ .read = vortex_codec_read,
+ };
+
+ if ((err = snd_ac97_bus(vortex->card, 0, &ops, NULL, &pbus)) < 0)
+ return err;
+ memset(&ac97, 0, sizeof(ac97));
+ // Initialize AC97 codec stuff.
+ ac97.private_data = vortex;
+ ac97.scaps = AC97_SCAP_NO_SPDIF;
+ err = snd_ac97_mixer(pbus, &ac97, &vortex->codec);
+ vortex->isquad = ((vortex->codec == NULL) ? 0 : (vortex->codec->ext_id&0x80));
+ remove_ctl(vortex->card, "Master Mono Playback Volume");
+ remove_ctl(vortex->card, "Master Mono Playback Switch");
+ return err;
+}