summaryrefslogtreecommitdiff
path: root/arch/cris/include/arch-v32/mach-fs/mach/dma.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/cris/include/arch-v32/mach-fs/mach/dma.h')
-rw-r--r--arch/cris/include/arch-v32/mach-fs/mach/dma.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/cris/include/arch-v32/mach-fs/mach/dma.h b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
new file mode 100644
index 00000000000..a8c59292586
--- /dev/null
+++ b/arch/cris/include/arch-v32/mach-fs/mach/dma.h
@@ -0,0 +1,79 @@
+#ifndef _ASM_ARCH_CRIS_DMA_H
+#define _ASM_ARCH_CRIS_DMA_H
+
+/* Defines for using and allocating dma channels. */
+
+#define MAX_DMA_CHANNELS 10
+
+#define NETWORK_ETH0_TX_DMA_NBR 0 /* Ethernet 0 out. */
+#define NETWORK_ETH0 RX_DMA_NBR 1 /* Ethernet 0 in. */
+
+#define IO_PROC_DMA0_TX_DMA_NBR 2 /* IO processor DMA0 out. */
+#define IO_PROC_DMA0_RX_DMA_NBR 3 /* IO processor DMA0 in. */
+
+#define ATA_TX_DMA_NBR 2 /* ATA interface out. */
+#define ATA_RX_DMA_NBR 3 /* ATA interface in. */
+
+#define ASYNC_SER2_TX_DMA_NBR 2 /* Asynchronous serial port 2 out. */
+#define ASYNC_SER2_RX_DMA_NBR 3 /* Asynchronous serial port 2 in. */
+
+#define IO_PROC_DMA1_TX_DMA_NBR 4 /* IO processor DMA1 out. */
+#define IO_PROC_DMA1_RX_DMA_NBR 5 /* IO processor DMA1 in. */
+
+#define ASYNC_SER1_TX_DMA_NBR 4 /* Asynchronous serial port 1 out. */
+#define ASYNC_SER1_RX_DMA_NBR 5 /* Asynchronous serial port 1 in. */
+
+#define SYNC_SER0_TX_DMA_NBR 4 /* Synchronous serial port 0 out. */
+#define SYNC_SER0_RX_DMA_NBR 5 /* Synchronous serial port 0 in. */
+
+#define EXTDMA0_TX_DMA_NBR 6 /* External DMA 0 out. */
+#define EXTDMA1_RX_DMA_NBR 7 /* External DMA 1 in. */
+
+#define ASYNC_SER0_TX_DMA_NBR 6 /* Asynchronous serial port 0 out. */
+#define ASYNC_SER0_RX_DMA_NBR 7 /* Asynchronous serial port 0 in. */
+
+#define SYNC_SER1_TX_DMA_NBR 6 /* Synchronous serial port 1 out. */
+#define SYNC_SER1_RX_DMA_NBR 7 /* Synchronous serial port 1 in. */
+
+#define NETWORK_ETH1_TX_DMA_NBR 6 /* Ethernet 1 out. */
+#define NETWORK_ETH1_RX_DMA_NBR 7 /* Ethernet 1 in. */
+
+#define EXTDMA2_TX_DMA_NBR 8 /* External DMA 2 out. */
+#define EXTDMA3_RX_DMA_NBR 9 /* External DMA 3 in. */
+
+#define STRCOP_TX_DMA_NBR 8 /* Stream co-processor out. */
+#define STRCOP_RX_DMA_NBR 9 /* Stream co-processor in. */
+
+#define ASYNC_SER3_TX_DMA_NBR 8 /* Asynchronous serial port 3 out. */
+#define ASYNC_SER3_RX_DMA_NBR 9 /* Asynchronous serial port 3 in. */
+
+enum dma_owner {
+ dma_eth0,
+ dma_eth1,
+ dma_iop0,
+ dma_iop1,
+ dma_ser0,
+ dma_ser1,
+ dma_ser2,
+ dma_ser3,
+ dma_sser0,
+ dma_sser1,
+ dma_ata,
+ dma_strp,
+ dma_ext0,
+ dma_ext1,
+ dma_ext2,
+ dma_ext3
+};
+
+int crisv32_request_dma(unsigned int dmanr, const char *device_id,
+ unsigned options, unsigned bandwidth,
+ enum dma_owner owner);
+void crisv32_free_dma(unsigned int dmanr);
+
+/* Masks used by crisv32_request_dma options: */
+#define DMA_VERBOSE_ON_ERROR 1
+#define DMA_PANIC_ON_ERROR (2|DMA_VERBOSE_ON_ERROR)
+#define DMA_INT_MEM 4
+
+#endif /* _ASM_ARCH_CRIS_DMA_H */