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2007-10-23[ALSA] protect Dreamcast PCM driver (AICA) from G2 bus effectsAdrian McMenamin
The G2 bus on the SEGA Dreamcast connects both the maple peripheral bus and the AICA sound memory. DMA requests on one can cause the other to timeout on memory operations. This patch prevents maple interrupts from causing hiccoughs in the AICA sound (maple bus code will land in 2.6.24). There are other cleanups for this (AICA) code - but this is in effect a regression fix rather than a cleanup. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
2007-10-16[ALSA] Clean up with common snd_ctl_boolean_*_info callbacksTakashi Iwai
Clean up codes using the new common snd_ctl_boolean_*_info() callbacks. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-07-20[ALSA] aica - fix behaviour in poor resource conditionsTakashi Iwai
Fix behaviour in poor resource conditions. With this new patch, tidied with indent and with SNDRV_PCM_TRIGGER_STOP being used. Signed-off by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-07-20[ALSA] Add ALSA support for the SEGA Dreamcast PCM deviceAdrian McMenamin
ALSA support for the SEGA Dreamcast Yamaha AICA sound device (pcm) This patch adds ALSA sound support for pcm playback on two channels on the SEGA Dreamcast built-in sound device (the Yamaha AICA) Add driver for the AICA sound device built into the SEGA Dreamcast Hook it all up with the build system. Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>