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1ec1e82f SH |
1 | /* |
2 | * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
7 | */ | |
8 | ||
9 | #ifndef __ASM_ARCH_MXC_DMA_H__ | |
10 | #define __ASM_ARCH_MXC_DMA_H__ | |
11 | ||
12 | #include <linux/scatterlist.h> | |
13 | #include <linux/device.h> | |
14 | #include <linux/dmaengine.h> | |
15 | ||
16 | /* | |
17 | * This enumerates peripheral types. Used for SDMA. | |
18 | */ | |
19 | enum sdma_peripheral_type { | |
20 | IMX_DMATYPE_SSI, /* MCU domain SSI */ | |
21 | IMX_DMATYPE_SSI_SP, /* Shared SSI */ | |
22 | IMX_DMATYPE_MMC, /* MMC */ | |
23 | IMX_DMATYPE_SDHC, /* SDHC */ | |
24 | IMX_DMATYPE_UART, /* MCU domain UART */ | |
25 | IMX_DMATYPE_UART_SP, /* Shared UART */ | |
26 | IMX_DMATYPE_FIRI, /* FIRI */ | |
27 | IMX_DMATYPE_CSPI, /* MCU domain CSPI */ | |
28 | IMX_DMATYPE_CSPI_SP, /* Shared CSPI */ | |
29 | IMX_DMATYPE_SIM, /* SIM */ | |
30 | IMX_DMATYPE_ATA, /* ATA */ | |
31 | IMX_DMATYPE_CCM, /* CCM */ | |
32 | IMX_DMATYPE_EXT, /* External peripheral */ | |
33 | IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */ | |
34 | IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */ | |
35 | IMX_DMATYPE_DSP, /* DSP */ | |
36 | IMX_DMATYPE_MEMORY, /* Memory */ | |
37 | IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */ | |
38 | IMX_DMATYPE_SPDIF, /* SPDIF */ | |
39 | IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */ | |
40 | IMX_DMATYPE_ASRC, /* ASRC */ | |
41 | IMX_DMATYPE_ESAI, /* ESAI */ | |
1a895578 | 42 | IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ |
f892afb0 | 43 | IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ |
29aebfde | 44 | IMX_DMATYPE_SAI, /* SAI */ |
1ec1e82f SH |
45 | }; |
46 | ||
47 | enum imx_dma_prio { | |
48 | DMA_PRIO_HIGH = 0, | |
49 | DMA_PRIO_MEDIUM = 1, | |
50 | DMA_PRIO_LOW = 2 | |
51 | }; | |
52 | ||
53 | struct imx_dma_data { | |
54 | int dma_request; /* DMA request line */ | |
94b912e4 | 55 | int dma_request2; /* secondary DMA request line */ |
1ec1e82f SH |
56 | enum sdma_peripheral_type peripheral_type; |
57 | int priority; | |
58 | }; | |
59 | ||
60 | static inline int imx_dma_is_ipu(struct dma_chan *chan) | |
61 | { | |
62 | return !strcmp(dev_name(chan->device->dev), "ipu-core"); | |
63 | } | |
64 | ||
65 | static inline int imx_dma_is_general_purpose(struct dma_chan *chan) | |
66 | { | |
290ad0f9 MP |
67 | return !strcmp(chan->device->dev->driver->name, "imx-sdma") || |
68 | !strcmp(chan->device->dev->driver->name, "imx-dma"); | |
1ec1e82f SH |
69 | } |
70 | ||
71 | #endif |