On Wed, 04 Feb 2009 13:51:48 +0100 Sedji Gaouaou sedji.gaouaou@atmel.com wrote:
Hi, Hans-Christian Egtvedt a écrit :
Yes, it should be possible to share the AC97C driver between AT91 and AVR32. Although this AC97C driver uses the DesignWare DMAC controller (drivers/dma/dw_dmac.c).
I do not remember which DMA interface AT91 devices uses.
Should the driver go into sound/drivers then? And renamed to atmel-ac97c.{c,h} for example.
Actually there are some differences, AT91 does not use a DMA, we use a specific IP(PDC) to transer the data...
PDC is still DMA ;) I guess AT91 uses the "old" PDC and not PDCA?
Maybe we could share the same code we some #define in it?
Yes, it should be simple to add an additional #define in kconfig.
config SND_ATMEL_AC97C_PDC bool depends on ARCH_AT91
And then have some ifdefs/else around the DMA stuff, much like the atmel-mci driver does today.