| /* | |
| * 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); |