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[pohmelfs.git] / include / asm-arm / arch-imx / dma.h
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1 /*
2 * linux/include/asm-arm/imxads/dma.h
4 * Copyright (C) 1997,1998 Russell King
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.
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.
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
20 #ifndef __ASM_ARCH_DMA_H
21 #define __ASM_ARCH_DMA_H
23 #define MAX_DMA_ADDRESS 0xffffffff
25 #define MAX_DMA_CHANNELS 0
28 * DMA registration
31 typedef enum {
32 DMA_PRIO_HIGH = 0,
33 DMA_PRIO_MEDIUM = 3,
34 DMA_PRIO_LOW = 6
35 } imx_dma_prio;
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);
42 void imx_free_dma(int dma_ch);
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
71 #endif /* _ASM_ARCH_DMA_H */