static struct dma_channel {
char *name;
- void (*irq_handler)(int, void *, struct pt_regs *);
+ void (*irq_handler)(int, void *);
void *data;
} dma_channels[PXA_DMA_CHANNELS];
int pxa_request_dma (char *name, pxa_dma_prio prio,
- void (*irq_handler)(int, void *, struct pt_regs *),
+ void (*irq_handler)(int, void *),
void *data)
{
unsigned long flags;
local_irq_save(flags);
- /* try grabbing a DMA channel with the requested priority */
- for (i = prio; i < prio + PXA_DMA_NBCH(prio); i++) {
- if (!dma_channels[i].name) {
- found = 1;
- break;
- }
- }
-
- if (!found) {
- /* requested prio group is full, try hier priorities */
- for (i = prio-1; i >= 0; i--) {
+ do {
+ /* try grabbing a DMA channel with the requested priority */
+ pxa_for_each_dma_prio (i, prio) {
if (!dma_channels[i].name) {
found = 1;
break;
}
}
- }
+ /* if requested prio group is full, try a hier priority */
+ } while (!found && prio--);
if (found) {
DCSR(i) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;
local_irq_restore(flags);
}
-static irqreturn_t dma_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t dma_irq_handler(int irq, void *dev_id)
{
int i, dint = DINT;
if (dint & (1 << i)) {
struct dma_channel *channel = &dma_channels[i];
if (channel->name && channel->irq_handler) {
- channel->irq_handler(i, channel->data, regs);
+ channel->irq_handler(i, channel->data);
} else {
/*
* IRQ for an unregistered DMA channel: