From fc467a2623029976899261d6d379779c950ddcba Mon Sep 17 00:00:00 2001 From: Manuel Lauss Date: Wed, 9 May 2007 17:36:15 +0900 Subject: sh: SH7760 DMABRG support. The DMABRG is a special DMA unit within the SH7760 which does data transfers from main memory to Audio units and USB shared memory. It has 3 IRQ lines which generate 10 events, which have to be masked unmasked and acked in a single 32bit register. It works independently from the tradition SH DMAC, but blocks usage of DMAC channel 0. This patch adds 2 functions to associate callbacks with DMABRG events and initialization. Signed-off-by: Manuel Lauss Signed-off-by: Paul Mundt --- include/asm-sh/dmabrg.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) create mode 100644 include/asm-sh/dmabrg.h (limited to 'include/asm-sh') diff --git a/include/asm-sh/dmabrg.h b/include/asm-sh/dmabrg.h new file mode 100644 index 000000000000..c5edba216cf1 --- /dev/null +++ b/include/asm-sh/dmabrg.h @@ -0,0 +1,23 @@ +/* + * SH7760 DMABRG (USB/Audio) support + */ + +#ifndef _DMABRG_H_ +#define _DMABRG_H_ + +/* IRQ sources */ +#define DMABRGIRQ_USBDMA 0 +#define DMABRGIRQ_USBDMAERR 1 +#define DMABRGIRQ_A0TXF 2 +#define DMABRGIRQ_A0TXH 3 +#define DMABRGIRQ_A0RXF 4 +#define DMABRGIRQ_A0RXH 5 +#define DMABRGIRQ_A1TXF 6 +#define DMABRGIRQ_A1TXH 7 +#define DMABRGIRQ_A1RXF 8 +#define DMABRGIRQ_A1RXH 9 + +extern int dmabrg_request_irq(unsigned int, void(*)(void *), void *); +extern void dmabrg_free_irq(unsigned int); + +#endif -- cgit v1.2.1