24 lines
414 B
C
24 lines
414 B
C
/*
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* dma.h
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*
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* Copyright (C) 2019-2020 Sylvain Munaut <tnt@246tNt.com>
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#pragma once
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#include <stdbool.h>
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typedef void (*dma_cb)(void *);
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/* Direction
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* 0 is E1 to USB
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* 1 is USB to E1
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*/
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bool dma_ready(void);
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void dma_exec(unsigned addr_e1, unsigned addr_usb, unsigned len, bool dir,
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dma_cb cb_fn, void *cb_data);
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bool dma_poll(void);
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