projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 24a07a12 | 1 | /* |
| 96f1050d | 2 | * simple DMA Implementation for Blackfin |
| 24a07a12 | 3 | * |
| 96f1050d | 4 | * Copyright 2007-2009 Analog Devices Inc. |
| 24a07a12 | 5 | * |
| 96f1050d | 6 | * Licensed under the GPL-2 or later. |
| 24a07a12 | 7 | */ |
| 96f1050d | 8 | |
| ac86a978 BS |
9 | #include <linux/module.h> |
| 10 | ||
| 24a07a12 RH |
11 | #include <asm/blackfin.h> |
| 12 | #include <asm/dma.h> | |
| 13 | ||
| 5e3bcf30 | 14 | struct dma_register * const dma_io_base_addr[MAX_DMA_CHANNELS] = { |
| 24a07a12 RH |
15 | (struct dma_register *) DMA0_NEXT_DESC_PTR, |
| 16 | (struct dma_register *) DMA1_NEXT_DESC_PTR, | |
| 17 | (struct dma_register *) DMA2_NEXT_DESC_PTR, | |
| 18 | (struct dma_register *) DMA3_NEXT_DESC_PTR, | |
| 19 | (struct dma_register *) DMA4_NEXT_DESC_PTR, | |
| 20 | (struct dma_register *) DMA5_NEXT_DESC_PTR, | |
| 21 | (struct dma_register *) DMA6_NEXT_DESC_PTR, | |
| 22 | (struct dma_register *) DMA7_NEXT_DESC_PTR, | |
| 23 | (struct dma_register *) MDMA_D0_NEXT_DESC_PTR, | |
| 24 | (struct dma_register *) MDMA_S0_NEXT_DESC_PTR, | |
| 25 | (struct dma_register *) MDMA_D1_NEXT_DESC_PTR, | |
| 26 | (struct dma_register *) MDMA_S1_NEXT_DESC_PTR, | |
| 27 | }; | |
| 77955664 | 28 | EXPORT_SYMBOL(dma_io_base_addr); |
| 24a07a12 | 29 | |
| f8ffe652 | 30 | int channel2irq(unsigned int channel) |
| 24a07a12 RH |
31 | { |
| 32 | int ret_irq = -1; | |
| 33 | ||
| 34 | switch (channel) { | |
| 35 | case CH_PPI: | |
| 36 | ret_irq = IRQ_PPI; | |
| 37 | break; | |
| 38 | ||
| 39 | case CH_SPORT0_RX: | |
| 40 | ret_irq = IRQ_SPORT0_RX; | |
| 41 | break; | |
| 42 | ||
| 43 | case CH_SPORT0_TX: | |
| 44 | ret_irq = IRQ_SPORT0_TX; | |
| 45 | break; | |
| 46 | ||
| 47 | case CH_SPORT1_RX: | |
| 48 | ret_irq = IRQ_SPORT1_RX; | |
| 49 | break; | |
| 50 | ||
| 51 | case CH_SPORT1_TX: | |
| 52 | ret_irq = IRQ_SPORT1_TX; | |
| 53 | break; | |
| 54 | ||
| 55 | case CH_SPI: | |
| 56 | ret_irq = IRQ_SPI; | |
| 57 | break; | |
| 58 | ||
| 8d71e075 MF |
59 | case CH_UART0_RX: |
| 60 | ret_irq = IRQ_UART0_RX; | |
| 24a07a12 RH |
61 | break; |
| 62 | ||
| 8d71e075 MF |
63 | case CH_UART0_TX: |
| 64 | ret_irq = IRQ_UART0_TX; | |
| 24a07a12 RH |
65 | break; |
| 66 | ||
| 67 | case CH_MEM_STREAM0_SRC: | |
| 68 | case CH_MEM_STREAM0_DEST: | |
| 69 | ret_irq = IRQ_MEM_DMA0; | |
| 70 | break; | |
| 71 | ||
| 72 | case CH_MEM_STREAM1_SRC: | |
| 73 | case CH_MEM_STREAM1_DEST: | |
| 74 | ret_irq = IRQ_MEM_DMA1; | |
| 75 | break; | |
| 76 | } | |
| 77 | return ret_irq; | |
| 78 | } |