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2009-04-06ALSA: snd-atmel-ac97c: replace bus_id with dev_name()Hans-Christian Egtvedt1-2/+2
This patch replaces the references to bus_id to the new dev_name() API. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: cleanup registers when removing driverHans-Christian Egtvedt1-0/+4
This patch will set the channel A and control channel mode register to zero before disabling the AC97C peripheral. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: do a proper reset of the external codecHans-Christian Egtvedt1-7/+7
This patch will enable the AC97C before resetting the external codec, leaving the AC97C disabled will result in floating I/O lines that can affect the reset procedure. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: enable interrupts to catch events for error reportingHans-Christian Egtvedt1-1/+76
This patch will enable interrupts from AC97C and report about error conditions that occurs. On channel A both overrun and underrun will be enabled depending if playback and/or capture are enabled. On the control channel the overrun interrupt is enabled. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: set correct size for buffer hardware parameterHans-Christian Egtvedt1-2/+2
This patch will set a proper maximum bytes for the buffer, which is: channels * bytes per sample * maximum periods * maximum bytes per period. It also sets the minimum periods to 6, a value chosen from testing, with a minimum of 6 periods the system has good time to fill in new audio data without skipping. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: do not overwrite OCA and ICA when assigning channelsHans-Christian Egtvedt1-5/+18
This patch will take care not to overwrite OCA and ICA registers when assigning input and output channels. It will also make sure the registers are at a known state when enabling a channel and clean up properly in case of an error. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-04-06ALSA: snd-atmel-ac97c: remove dead break statements after return in switch caseHans-Christian Egtvedt1-2/+0
Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-02-05ALSA: Add ALSA driver for Atmel AC97 controllerHans-Christian Egtvedt1-0/+932
This patch adds ALSA support for the AC97 controller found on Atmel AVR32 devices. Tested on ATSTK1006 + ATSTK1000 with a development board with a AC97 codec. Signed-off-by: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
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