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Based on 2 normalized pattern(s): 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 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 # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
46 lines
907 B
C
46 lines
907 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* linux/arch/unicore32/include/mach/dma.h
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*
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* Code specific to PKUnity SoC and UniCore ISA
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*
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* Copyright (C) 2001-2010 GUAN Xue-tao
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*/
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#ifndef __MACH_PUV3_DMA_H__
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#define __MACH_PUV3_DMA_H__
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/*
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* The PKUnity has six internal DMA channels.
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*/
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#define MAX_DMA_CHANNELS 6
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typedef enum {
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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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} puv3_dma_prio;
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/*
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* DMA registration
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*/
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extern int puv3_request_dma(char *name,
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puv3_dma_prio prio,
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void (*irq_handler)(int, void *),
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void (*err_handler)(int, void *),
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void *data);
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extern void puv3_free_dma(int dma_ch);
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static inline void puv3_stop_dma(int ch)
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{
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writel(readl(DMAC_CONFIG(ch)) & ~DMAC_CONFIG_EN, DMAC_CONFIG(ch));
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}
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static inline void puv3_resume_dma(int ch)
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{
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writel(readl(DMAC_CONFIG(ch)) | DMAC_CONFIG_EN, DMAC_CONFIG(ch));
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}
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#endif /* __MACH_PUV3_DMA_H__ */
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