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authorRafael Ignacio Zurita <rizurita@yahoo.com>2009-11-03 17:16:27 -0300
committerTakashi Iwai <tiwai@suse.de>2009-11-04 09:17:40 +0100
commit9dcaa7b25f2c8f6a0485854cd3641f585a154072 (patch)
tree1f3453a235682f5ba4b4357633f3546a4dbf4e2b /arch/sh/include/mach-common
parentbcc2c6b7cb320d10c7fcccd87dce87f4384b4332 (diff)
downloadlinux-9dcaa7b25f2c8f6a0485854cd3641f585a154072.tar.bz2
ALSA: sh: add SuperH DAC audio driver for ALSA V4
This is a port of the sound/oss/sh_dac_audio.c driver. The driver uses an on-chip 8-bit D/A converter, which has a speaker connected to one of its channels, found in several ancient HP machines. For interrupts it uses a high-resolution timer (hrtimer). Tested on SH7709 based hp6xx (HP Jornada 680/690 and HP Palmtop 620lx/660lx). Also, since OSS Emulation works, the old OSS sound/oss/sh_dac_audio.c driver would be obsolete soon, and it could be removed. Signed-off-by: Rafael Ignacio Zurita <rizurita@yahoo.com> Acked-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'arch/sh/include/mach-common')
-rw-r--r--arch/sh/include/mach-common/mach/hp6xx.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/sh/include/mach-common/mach/hp6xx.h b/arch/sh/include/mach-common/mach/hp6xx.h
index 0d4165a32dcd..bcc301ac12f4 100644
--- a/arch/sh/include/mach-common/mach/hp6xx.h
+++ b/arch/sh/include/mach-common/mach/hp6xx.h
@@ -29,6 +29,9 @@
#define PKDR_LED_GREEN 0x10
+/* HP Palmtop 620lx/660lx speaker on/off */
+#define PKDR_SPEAKER 0x20
+
#define SCPDR_TS_SCAN_ENABLE 0x20
#define SCPDR_TS_SCAN_Y 0x02
#define SCPDR_TS_SCAN_X 0x01
@@ -42,6 +45,7 @@
#define ADC_CHANNEL_BACKUP 4
#define ADC_CHANNEL_CHARGE 5
+/* HP Jornada 680/690 speaker on/off */
#define HD64461_GPADR_SPEAKER 0x01
#define HD64461_GPADR_PCMCIA0 (0x02|0x08)