root/include/linux/platform_data/dma-imx.h

INCLUDED FROM

DEFINITIONS

1. imx_dma_is_ipu
2. imx_dma_is_general_purpose

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