kernel-ark/include/asm-sh/dmabrg.h
Manuel Lauss fc467a2623 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 <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-05-09 17:36:15 +09:00

24 lines
497 B
C

/*
* 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