/* * novena-eim.h * ------------ * This module contains the userland magic to set up and use the EIM bus. * * * Author: Pavel Shatov * Copyright (c) 2014-2015, NORDUnet A/S All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * - Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * * - Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * - Neither the name of the NORDUnet nor the names of its contributors may * be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef _NOVENA_EIM_H_ #define _NOVENA_EIM_H_ #include #include /* Required for off_t, at least on Debian Wheezy. */ #define EIM_BASE_ADDR 0x08000000 /* * Set up EIM bus. * Returns 0 on success, -1 on failure. */ int eim_setup(void); /* * Write a 32-bit word to EIM. * If EIM is not set up correctly, this will abort with a bus error. */ void eim_write_32(off_t, uint32_t *); /* * Read a 32-bit word from EIM. * If EIM is not set up correctly, this will abort with a bus error. */ void eim_read_32(off_t, uint32_t *); #endif /* _NOVENA_EIM_H_ */ /* * Local variables: * indent-tabs-mode: nil * End: */ 9d8615a60e94b3c19e090a4eba8a0256ec32'/>
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