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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /sound/pci/ice1712/amp.c
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'sound/pci/ice1712/amp.c')
-rw-r--r--sound/pci/ice1712/amp.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/sound/pci/ice1712/amp.c b/sound/pci/ice1712/amp.c
new file mode 100644
index 00000000000..779951725e1
--- /dev/null
+++ b/sound/pci/ice1712/amp.c
@@ -0,0 +1,65 @@
+/*
+ * ALSA driver for ICEnsemble VT1724 (Envy24HT)
+ *
+ * Lowlevel functions for Advanced Micro Peripherals Ltd AUDIO2000
+ *
+ * Copyright (c) 2000 Jaroslav Kysela <perex@suse.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 <sound/driver.h>
+#include <asm/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <sound/core.h>
+
+#include "ice1712.h"
+#include "amp.h"
+
+
+static int __devinit snd_vt1724_amp_init(ice1712_t *ice)
+{
+ /* only use basic functionality for now */
+
+ ice->num_total_dacs = 2; /* only PSDOUT0 is connected */
+ ice->num_total_adcs = 2;
+
+ return 0;
+}
+
+static int __devinit snd_vt1724_amp_add_controls(ice1712_t *ice)
+{
+ /* we use pins 39 and 41 of the VT1616 for left and right read outputs */
+ snd_ac97_write_cache(ice->ac97, 0x5a, snd_ac97_read(ice->ac97, 0x5a) & ~0x8000);
+ return 0;
+}
+
+
+/* entry point */
+struct snd_ice1712_card_info snd_vt1724_amp_cards[] __devinitdata = {
+ {
+ .subvendor = VT1724_SUBDEVICE_AUDIO2000,
+ .name = "AMP Ltd AUDIO2000",
+ .model = "amp2000",
+ .chip_init = snd_vt1724_amp_init,
+ .build_controls = snd_vt1724_amp_add_controls,
+ },
+ { } /* terminator */
+};
+