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fc467a2623
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>
24 lines
497 B
C
24 lines
497 B
C
/*
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* SH7760 DMABRG (USB/Audio) support
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*/
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#ifndef _DMABRG_H_
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#define _DMABRG_H_
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/* IRQ sources */
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#define DMABRGIRQ_USBDMA 0
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#define DMABRGIRQ_USBDMAERR 1
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#define DMABRGIRQ_A0TXF 2
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#define DMABRGIRQ_A0TXH 3
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#define DMABRGIRQ_A0RXF 4
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#define DMABRGIRQ_A0RXH 5
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#define DMABRGIRQ_A1TXF 6
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#define DMABRGIRQ_A1TXH 7
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#define DMABRGIRQ_A1RXF 8
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#define DMABRGIRQ_A1RXH 9
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extern int dmabrg_request_irq(unsigned int, void(*)(void *), void *);
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extern void dmabrg_free_irq(unsigned int);
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#endif
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