include/grlib/grpci.h

0001 /* SPDX-License-Identifier: BSD-2-Clause */
0002
0003 /*
0004  *  COPYRIGHT (c) 2015.
0005  *  Cobham Gaisler.
0006  *
0007  * Redistribution and use in source and binary forms, with or without
0008  * modification, are permitted provided that the following conditions
0009  * are met:
0010  * 1. Redistributions of source code must retain the above copyright
0011  *    notice, this list of conditions and the following disclaimer.
0012  * 2. Redistributions in binary form must reproduce the above copyright
0013  *    notice, this list of conditions and the following disclaimer in the
0014  *    documentation and/or other materials provided with the distribution.
0015  *
0016  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
0017  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
0018  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
0019  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
0020  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
0021  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
0022  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
0023  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
0024  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
0025  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
0026  * POSSIBILITY OF SUCH DAMAGE.
0027  *
0028  */
0029
0030 #ifndef __GRPCI_H__
0031 #define __GRPCI_H__
0032
0033 #ifdef __cplusplus
0034 extern "C" {
0035 #endif
0036
0037 /* Register the GRPCI driver to the Driver Manager */
0038 extern void grpci_register_drv(void);
0039
0040 /* Transfer data using GRPCI DMA unit from AMBA to PCI space. Blocks until
0041  * operation completes.
0042  */
0043 int grpci_dma_to_pci(
0044     unsigned int ahb_addr,
0045     unsigned int pci_addr,
0046     unsigned int len);
0047
0048 /* Transfer data using GRPCI DMA unit from PCI to AMBA space. Blocks until
0049  * operation completes.
0050  */
0051 int grpci_dma_from_pci(
0052     unsigned int ahb_addr,
0053     unsigned int pci_addr,
0054     unsigned int len);
0055
0056 #ifdef __cplusplus
0057 }
0058 #endif
0059
0060 #endif