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1 | /* |
2 | * linux/include/asm-arm/imxads/dma.h | |
3 | * | |
4 | * Copyright (C) 1997,1998 Russell King | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | */ | |
20 | #ifndef __ASM_ARCH_DMA_H | |
21 | #define __ASM_ARCH_DMA_H | |
22 | ||
23 | #define MAX_DMA_ADDRESS 0xffffffff | |
24 | ||
25 | #define MAX_DMA_CHANNELS 0 | |
26 | ||
27 | /* | |
28 | * DMA registration | |
29 | */ | |
30 | ||
31 | typedef enum { | |
32 | DMA_PRIO_HIGH = 0, | |
33 | DMA_PRIO_MEDIUM = 3, | |
34 | DMA_PRIO_LOW = 6 | |
35 | } imx_dma_prio; | |
36 | ||
37 | int imx_request_dma(char *name, imx_dma_prio prio, | |
38 | void (*irq_handler) (int, void *, struct pt_regs *), | |
39 | void (*err_handler) (int, void *, struct pt_regs *), | |
40 | void *data); | |
41 | ||
42 | void imx_free_dma(int dma_ch); | |
43 | ||
44 | ||
45 | #define DMA_REQ_UART3_T 2 | |
46 | #define DMA_REQ_UART3_R 3 | |
47 | #define DMA_REQ_SSI2_T 4 | |
48 | #define DMA_REQ_SSI2_R 5 | |
49 | #define DMA_REQ_CSI_STAT 6 | |
50 | #define DMA_REQ_CSI_R 7 | |
51 | #define DMA_REQ_MSHC 8 | |
52 | #define DMA_REQ_DSPA_DCT_DOUT 9 | |
53 | #define DMA_REQ_DSPA_DCT_DIN 10 | |
54 | #define DMA_REQ_DSPA_MAC 11 | |
55 | #define DMA_REQ_EXT 12 | |
56 | #define DMA_REQ_SDHC 13 | |
57 | #define DMA_REQ_SPI1_R 14 | |
58 | #define DMA_REQ_SPI1_T 15 | |
59 | #define DMA_REQ_SSI_T 16 | |
60 | #define DMA_REQ_SSI_R 17 | |
61 | #define DMA_REQ_ASP_DAC 18 | |
62 | #define DMA_REQ_ASP_ADC 19 | |
63 | #define DMA_REQ_USP_EP(x) (20+(x)) | |
64 | #define DMA_REQ_SPI2_R 26 | |
65 | #define DMA_REQ_SPI2_T 27 | |
66 | #define DMA_REQ_UART2_T 28 | |
67 | #define DMA_REQ_UART2_R 29 | |
68 | #define DMA_REQ_UART1_T 30 | |
69 | #define DMA_REQ_UART1_R 31 | |
70 | ||
71 | #endif /* _ASM_ARCH_DMA_H */ |