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Diffstat (limited to 'i2c/sw/tc_i2c.h')
-rw-r--r-- | i2c/sw/tc_i2c.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/i2c/sw/tc_i2c.h b/i2c/sw/tc_i2c.h new file mode 100644 index 0000000..f9648da --- /dev/null +++ b/i2c/sw/tc_i2c.h @@ -0,0 +1,47 @@ +/* + * tc_i2c.h + * -------- + * This module contains common code to talk to the FPGA over the I2C bus. + * + * Author: Paul Selkirk + * 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. + */ + +/* I2C configuration */ +#define I2C_dev "/dev/i2c-2" +#define I2C_addr 0x0f + +/* I2C public functions */ +int i2c_open(char *dev, int addr); + +/* test case public functions */ +int tc_write(off_t offset, const uint8_t *data, size_t len); +int tc_read(off_t offset, uint8_t *data, size_t len); +int tc_expected(off_t offset, const uint8_t *data, size_t len); +int tc_wait(off_t offset, uint8_t status, int *count); |