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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2008-07-12 22:43:50 +0200
committerJaroslav Kysela <perex@perex.cz>2008-07-14 09:01:02 +0200
commit862c2c0a61c515f2e9f63f689215bcf99a607eaf (patch)
treee1d40973f3d96a3a171fe5bd770e1ef893fb0581 /include/sound/ad1843.h
parent1e066322c26562621811effb1eb14097bc67a9ee (diff)
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ALSA: ALSA driver for SGI O2 audio board
This patch adds a new ALSA driver for the audio device found inside most of the SGI O2 workstation. The hardware uses a SGI custom chip, which feeds a AD codec chip. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'include/sound/ad1843.h')
-rw-r--r--include/sound/ad1843.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/sound/ad1843.h b/include/sound/ad1843.h
new file mode 100644
index 000000000000..b236a9d1d6e4
--- /dev/null
+++ b/include/sound/ad1843.h
@@ -0,0 +1,46 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright 2003 Vivien Chappelier <vivien.chappelier@linux-mips.org>
+ * Copyright 2008 Thomas Bogendoerfer <tsbogend@franken.de>
+ */
+
+#ifndef __SOUND_AD1843_H
+#define __SOUND_AD1843_H
+
+struct snd_ad1843 {
+ void *chip;
+ int (*read)(void *chip, int reg);
+ int (*write)(void *chip, int reg, int val);
+};
+
+#define AD1843_GAIN_RECLEV 0
+#define AD1843_GAIN_LINE 1
+#define AD1843_GAIN_LINE_2 2
+#define AD1843_GAIN_MIC 3
+#define AD1843_GAIN_PCM_0 4
+#define AD1843_GAIN_PCM_1 5
+#define AD1843_GAIN_SIZE (AD1843_GAIN_PCM_1+1)
+
+int ad1843_get_gain_max(struct snd_ad1843 *ad1843, int id);
+int ad1843_get_gain(struct snd_ad1843 *ad1843, int id);
+int ad1843_set_gain(struct snd_ad1843 *ad1843, int id, int newval);
+int ad1843_get_recsrc(struct snd_ad1843 *ad1843);
+int ad1843_set_recsrc(struct snd_ad1843 *ad1843, int newsrc);
+void ad1843_setup_dac(struct snd_ad1843 *ad1843,
+ unsigned int id,
+ unsigned int framerate,
+ snd_pcm_format_t fmt,
+ unsigned int channels);
+void ad1843_shutdown_dac(struct snd_ad1843 *ad1843,
+ unsigned int id);
+void ad1843_setup_adc(struct snd_ad1843 *ad1843,
+ unsigned int framerate,
+ snd_pcm_format_t fmt,
+ unsigned int channels);
+void ad1843_shutdown_adc(struct snd_ad1843 *ad1843);
+int ad1843_init(struct snd_ad1843 *ad1843);
+
+#endif /* __SOUND_AD1843_H */