1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
4*4882a593Smuzhiyun */
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun #ifndef __ASM_ARCH_MXC_DMA_H__
7*4882a593Smuzhiyun #define __ASM_ARCH_MXC_DMA_H__
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun #include <linux/scatterlist.h>
10*4882a593Smuzhiyun #include <linux/device.h>
11*4882a593Smuzhiyun #include <linux/dmaengine.h>
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun /*
14*4882a593Smuzhiyun * This enumerates peripheral types. Used for SDMA.
15*4882a593Smuzhiyun */
16*4882a593Smuzhiyun enum sdma_peripheral_type {
17*4882a593Smuzhiyun IMX_DMATYPE_SSI, /* MCU domain SSI */
18*4882a593Smuzhiyun IMX_DMATYPE_SSI_SP, /* Shared SSI */
19*4882a593Smuzhiyun IMX_DMATYPE_MMC, /* MMC */
20*4882a593Smuzhiyun IMX_DMATYPE_SDHC, /* SDHC */
21*4882a593Smuzhiyun IMX_DMATYPE_UART, /* MCU domain UART */
22*4882a593Smuzhiyun IMX_DMATYPE_UART_SP, /* Shared UART */
23*4882a593Smuzhiyun IMX_DMATYPE_FIRI, /* FIRI */
24*4882a593Smuzhiyun IMX_DMATYPE_CSPI, /* MCU domain CSPI */
25*4882a593Smuzhiyun IMX_DMATYPE_CSPI_SP, /* Shared CSPI */
26*4882a593Smuzhiyun IMX_DMATYPE_SIM, /* SIM */
27*4882a593Smuzhiyun IMX_DMATYPE_ATA, /* ATA */
28*4882a593Smuzhiyun IMX_DMATYPE_CCM, /* CCM */
29*4882a593Smuzhiyun IMX_DMATYPE_EXT, /* External peripheral */
30*4882a593Smuzhiyun IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */
31*4882a593Smuzhiyun IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */
32*4882a593Smuzhiyun IMX_DMATYPE_DSP, /* DSP */
33*4882a593Smuzhiyun IMX_DMATYPE_MEMORY, /* Memory */
34*4882a593Smuzhiyun IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */
35*4882a593Smuzhiyun IMX_DMATYPE_SPDIF, /* SPDIF */
36*4882a593Smuzhiyun IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */
37*4882a593Smuzhiyun IMX_DMATYPE_ASRC, /* ASRC */
38*4882a593Smuzhiyun IMX_DMATYPE_ESAI, /* ESAI */
39*4882a593Smuzhiyun IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
40*4882a593Smuzhiyun IMX_DMATYPE_ASRC_SP, /* Shared ASRC */
41*4882a593Smuzhiyun IMX_DMATYPE_SAI, /* SAI */
42*4882a593Smuzhiyun };
43*4882a593Smuzhiyun
44*4882a593Smuzhiyun enum imx_dma_prio {
45*4882a593Smuzhiyun DMA_PRIO_HIGH = 0,
46*4882a593Smuzhiyun DMA_PRIO_MEDIUM = 1,
47*4882a593Smuzhiyun DMA_PRIO_LOW = 2
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun struct imx_dma_data {
51*4882a593Smuzhiyun int dma_request; /* DMA request line */
52*4882a593Smuzhiyun int dma_request2; /* secondary DMA request line */
53*4882a593Smuzhiyun enum sdma_peripheral_type peripheral_type;
54*4882a593Smuzhiyun int priority;
55*4882a593Smuzhiyun };
56*4882a593Smuzhiyun
imx_dma_is_ipu(struct dma_chan * chan)57*4882a593Smuzhiyun static inline int imx_dma_is_ipu(struct dma_chan *chan)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun return !strcmp(dev_name(chan->device->dev), "ipu-core");
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
imx_dma_is_general_purpose(struct dma_chan * chan)62*4882a593Smuzhiyun static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun return !strcmp(chan->device->dev->driver->name, "imx-sdma") ||
65*4882a593Smuzhiyun !strcmp(chan->device->dev->driver->name, "imx-dma");
66*4882a593Smuzhiyun }
67*4882a593Smuzhiyun
68*4882a593Smuzhiyun #endif
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