1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/pkg/devices/util/include/dma.h Tue Oct 24 17:20:58 2023 +0200
1.3 @@ -0,0 +1,32 @@
1.4 +/*
1.5 + * DMA-related memory allocation utility functions.
1.6 + *
1.7 + * Copyright (C) 2023 Paul Boddie <paul@boddie.org.uk>
1.8 + *
1.9 + * This program is free software; you can redistribute it and/or
1.10 + * modify it under the terms of the GNU General Public License as
1.11 + * published by the Free Software Foundation; either version 2 of
1.12 + * the License, or (at your option) any later version.
1.13 + *
1.14 + * This program is distributed in the hope that it will be useful,
1.15 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
1.16 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1.17 + * GNU General Public License for more details.
1.18 + *
1.19 + * You should have received a copy of the GNU General Public License
1.20 + * along with this program; if not, write to the Free Software
1.21 + * Foundation, Inc., 51 Franklin Street, Fifth Floor,
1.22 + * Boston, MA 02110-1301, USA
1.23 + */
1.24 +
1.25 +#pragma once
1.26 +
1.27 +#include <l4/re/c/dma_space.h>
1.28 +#include <l4/sys/types.h>
1.29 +
1.30 +EXTERN_C_BEGIN
1.31 +
1.32 +long get_dma_region(unsigned long size, int align, l4_addr_t *vaddr,
1.33 + l4re_dma_space_dma_addr_t *paddr, l4_cap_idx_t *mem);
1.34 +
1.35 +EXTERN_C_END