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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 */ | |
42 | }; | |
43 | ||
44 | enum imx_dma_prio { | |
45 | DMA_PRIO_HIGH = 0, | |
46 | DMA_PRIO_MEDIUM = 1, | |
47 | DMA_PRIO_LOW = 2 | |
48 | }; | |
49 | ||
50 | struct imx_dma_data { | |
51 | int dma_request; /* DMA request line */ | |
52 | enum sdma_peripheral_type peripheral_type; | |
53 | int priority; | |
54 | }; | |
55 | ||
56 | static inline int imx_dma_is_ipu(struct dma_chan *chan) | |
57 | { | |
58 | return !strcmp(dev_name(chan->device->dev), "ipu-core"); | |
59 | } | |
60 | ||
61 | static inline int imx_dma_is_general_purpose(struct dma_chan *chan) | |
62 | { | |
89857353 | 63 | return strstr(dev_name(chan->device->dev), "sdma") || |
e51d0f0a SG |
64 | !strcmp(dev_name(chan->device->dev), "imx1-dma") || |
65 | !strcmp(dev_name(chan->device->dev), "imx21-dma") || | |
66 | !strcmp(dev_name(chan->device->dev), "imx27-dma"); | |
1ec1e82f SH |
67 | } |
68 | ||
69 | #endif |