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path: root/sound/pci/cs5535audio/cs5535audio.h
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2007-10-16[ALSA] cs5535audio: drop unused bus master stuffAndres Salomon
We really only care about the first two bus masters (playback and capture). There's no need to have unused BM code lying around, so let's get rid of it. If for some reason we trigger an IRQ for some BM that we're not using.. well, that warrants spitting out an error message (imo). Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] cs5535audio: fix ACC_BM[x]_CMD register handlingAndres Salomon
According to 6.3.2.7 of the cs5535/cs5536 data sheets, the ACC_BM[x]_CMD registers are only 8 bits wide. This driver treats them as 32 bits wide, and also has bits in the wrong place. Simple fix to the definitions. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2007-10-16[ALSA] cs5535audio: fix PRD register save/restore power management raceAndres Salomon
In the suspend path, we currently save the PRD registers and then disable DMA. This is racy; the sound hardware might update the PRD register as it finishes processing some DMA pages between when we've saved the PRD registers and when DMA actually gets disabled. Furthermore, we actively check whether or not DMA is enabled before saving PRD registers; there's no reason to do that, as the PRD registers should not update when we twiddle the ACC_BM[x]_CMD register(s). Worst case, we save the PRD registers twice; even powering down the ACC shouldn't mess with the PRD registers (according to the 5536 data sheet, section 5.3.7.4, power-down procedure). This patch reworks all that to first disable DMA, and then save PRD registers. Signed-off-by: Andres Salomon <dilinger@debian.org> Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
2006-06-22[ALSA] PM support for cs5535audioJaya Kumar
Appended is my patch adding PM support to the cs5535audio driver. I also added the ac97 quirk but it's not yet confirmed which boards need to be in the quirk list. The patch also includes some Kconfig and misc cleanup. Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] Remove xxx_t typedefs: PCI CS5535Takashi Iwai
Modules: CS5535 driver Remove xxx_t typedefs from the PCI CS5535 driver. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] Minor clean up and fixes for CS5535 audio driverTakashi Iwai
Modules: Documentation,CS5535 driver Minor clean up and fixes for CS5535 audio driver. Added an entry in ALSA-Configuration.txt, too. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2006-01-03[ALSA] Add support for the CS5535 Audio deviceJaya Kumar
Add support for the CS5535 Audio device. I've fixed up some errors as per Takashi's advice from the thread: http://lkml.org/lkml/2005/9/15/119 From: Alan Cox <alan@lxorguk.ukuu.org.uk> cs5535 is a 32bit x86 only device using weird CPU features Signed-off-by: Jaya Kumar <jayakumar.alsa@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>