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68 lines
1.8 KiB
68 lines
1.8 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved. |
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*/ |
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#ifndef __ASM_ARCH_MXC_DMA_H__ |
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#define __ASM_ARCH_MXC_DMA_H__ |
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#include <linux/scatterlist.h> |
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#include <linux/device.h> |
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#include <linux/dmaengine.h> |
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/* |
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* This enumerates peripheral types. Used for SDMA. |
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*/ |
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enum sdma_peripheral_type { |
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IMX_DMATYPE_SSI, /* MCU domain SSI */ |
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IMX_DMATYPE_SSI_SP, /* Shared SSI */ |
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IMX_DMATYPE_MMC, /* MMC */ |
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IMX_DMATYPE_SDHC, /* SDHC */ |
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IMX_DMATYPE_UART, /* MCU domain UART */ |
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IMX_DMATYPE_UART_SP, /* Shared UART */ |
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IMX_DMATYPE_FIRI, /* FIRI */ |
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IMX_DMATYPE_CSPI, /* MCU domain CSPI */ |
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IMX_DMATYPE_CSPI_SP, /* Shared CSPI */ |
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IMX_DMATYPE_SIM, /* SIM */ |
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IMX_DMATYPE_ATA, /* ATA */ |
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IMX_DMATYPE_CCM, /* CCM */ |
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IMX_DMATYPE_EXT, /* External peripheral */ |
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IMX_DMATYPE_MSHC, /* Memory Stick Host Controller */ |
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IMX_DMATYPE_MSHC_SP, /* Shared Memory Stick Host Controller */ |
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IMX_DMATYPE_DSP, /* DSP */ |
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IMX_DMATYPE_MEMORY, /* Memory */ |
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IMX_DMATYPE_FIFO_MEMORY,/* FIFO type Memory */ |
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IMX_DMATYPE_SPDIF, /* SPDIF */ |
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IMX_DMATYPE_IPU_MEMORY, /* IPU Memory */ |
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IMX_DMATYPE_ASRC, /* ASRC */ |
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IMX_DMATYPE_ESAI, /* ESAI */ |
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IMX_DMATYPE_SSI_DUAL, /* SSI Dual FIFO */ |
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IMX_DMATYPE_ASRC_SP, /* Shared ASRC */ |
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IMX_DMATYPE_SAI, /* SAI */ |
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}; |
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enum imx_dma_prio { |
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DMA_PRIO_HIGH = 0, |
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DMA_PRIO_MEDIUM = 1, |
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DMA_PRIO_LOW = 2 |
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}; |
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struct imx_dma_data { |
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int dma_request; /* DMA request line */ |
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int dma_request2; /* secondary DMA request line */ |
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enum sdma_peripheral_type peripheral_type; |
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int priority; |
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}; |
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static inline int imx_dma_is_ipu(struct dma_chan *chan) |
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{ |
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return !strcmp(dev_name(chan->device->dev), "ipu-core"); |
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} |
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static inline int imx_dma_is_general_purpose(struct dma_chan *chan) |
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{ |
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return !strcmp(chan->device->dev->driver->name, "imx-sdma") || |
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!strcmp(chan->device->dev->driver->name, "imx-dma"); |
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} |
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#endif
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