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