You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
71 lines
2.0 KiB
71 lines
2.0 KiB
/*
|
|
* Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_MXC_DMA_H__
|
|
#define __ASM_ARCH_MXC_DMA_H__
|
|
|
|
#include <linux/scatterlist.h>
|
|
#include <linux/device.h>
|
|
#include <linux/dmaengine.h>
|
|
|
|
/*
|
|
* This enumerates peripheral types. Used for SDMA.
|
|
*/
|
|
enum sdma_peripheral_type {
|
|
IMX_DMATYPE_SSI, /* MCU domain SSI */
|
|
IMX_DMATYPE_SSI_SP, /* Shared SSI */
|
|
IMX_DMATYPE_MMC, /* MMC */
|
|
IMX_DMATYPE_SDHC, /* SDHC */
|
|
IMX_DMATYPE_UART, /* MCU domain UART */
|
|
IMX_DMATYPE_UART_SP, /* Shared UART */
|
|
IMX_DMATYPE_FIRI, /* FIRI */
|
|
IMX_DMATYPE_CSPI, /* MCU domain CSPI */
|
|
IMX_DMATYPE_CSPI_SP, /* Shared CSPI */
|
|
IMX_DMATYPE_SIM, /* SIM */
|
|
IMX_DMATYPE_ATA, /* ATA */
|
|
IMX_DMATYPE_CCM, /* CCM */
|
|
IMX_DMATYPE_EXT, /* External peripheral */
|
|
IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */
|
|
IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */
|
|
IMX_DMATYPE_DSP, /* DSP */
|
|
IMX_DMATYPE_MEMORY, /* Memory */
|
|
IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */
|
|
IMX_DMATYPE_SPDIF, /* SPDIF */
|
|
IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */
|
|
IMX_DMATYPE_ASRC, /* ASRC */
|
|
IMX_DMATYPE_ESAI, /* ESAI */
|
|
IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */
|
|
IMX_DMATYPE_ASRC_SP, /* Shared ASRC */
|
|
IMX_DMATYPE_SAI, /* SAI */
|
|
};
|
|
|
|
enum imx_dma_prio {
|
|
DMA_PRIO_HIGH = 0,
|
|
DMA_PRIO_MEDIUM = 1,
|
|
DMA_PRIO_LOW = 2
|
|
};
|
|
|
|
struct imx_dma_data {
|
|
int dma_request; /* DMA request line */
|
|
int dma_request2; /* secondary DMA request line */
|
|
enum sdma_peripheral_type peripheral_type;
|
|
int priority;
|
|
};
|
|
|
|
static inline int imx_dma_is_ipu(struct dma_chan *chan)
|
|
{
|
|
return !strcmp(dev_name(chan->device->dev), "ipu-core");
|
|
}
|
|
|
|
static inline int imx_dma_is_general_purpose(struct dma_chan *chan)
|
|
{
|
|
return !strcmp(chan->device->dev->driver->name, "imx-sdma") ||
|
|
!strcmp(chan->device->dev->driver->name, "imx-dma");
|
|
}
|
|
|
|
#endif
|
|
|