volatile u32 dcmd; /* DCMD value for the current transfer */
} pxa_dma_desc;
+typedef enum {
+ DMA_PRIO_HIGH = 0,
+ DMA_PRIO_MEDIUM = 1,
+ DMA_PRIO_LOW = 2
+} pxa_dma_prio;
+
#if defined(CONFIG_PXA27x)
#define PXA_DMA_CHANNELS 32
-#define PXA_DMA_NBCH(prio) ((prio == DMA_PRIO_LOW) ? 16 : 8)
-typedef enum {
- DMA_PRIO_HIGH = 0,
- DMA_PRIO_MEDIUM = 8,
- DMA_PRIO_LOW = 16
-} pxa_dma_prio;
+#define pxa_for_each_dma_prio(ch, prio) \
+for ( \
+ ch = prio * 4; \
+ ch != (4 << prio) + 16; \
+ ch = (ch + 1 == (4 << prio)) ? (prio * 4 + 16) : (ch + 1) \
+)
#elif defined(CONFIG_PXA25x)
#define PXA_DMA_CHANNELS 16
-#define PXA_DMA_NBCH(prio) ((prio == DMA_PRIO_LOW) ? 8 : 4)
-typedef enum {
- DMA_PRIO_HIGH = 0,
- DMA_PRIO_MEDIUM = 4,
- DMA_PRIO_LOW = 8
-} pxa_dma_prio;
+#define pxa_for_each_dma_prio(ch, prio) \
+ for (ch = prio * 4; ch != (4 << prio); ch++)
#endif
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);
void pxa_free_dma (int dma_ch);