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| author | Rafael Ignacio Zurita <rizurita@yahoo.com> | 2009-11-03 23:16:27 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2009-11-04 11:17:40 +0300 |
| commit | 9dcaa7b25f2c8f6a0485854cd3641f585a154072 (patch) | |
| tree | 1f3453a235682f5ba4b4357633f3546a4dbf4e2b /arch/sh/include | |
| parent | bcc2c6b7cb320d10c7fcccd87dce87f4384b4332 (diff) | |
| download | linux-9dcaa7b25f2c8f6a0485854cd3641f585a154072.tar.xz | |
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')
| -rw-r--r-- | arch/sh/include/mach-common/mach/hp6xx.h | 4 |
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) |