Denislam Valeev / Mbed OS Nucleo_rtos_basic

1

mbed-os/drivers/I2CSlave.cpp@0:e056ac8fecf8, 2018-03-13 (annotated)

Committer:
valeyev
Date:
Tue Mar 13 07:17:50 2018 +0000
Revision:
0:e056ac8fecf8
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valeyev 0:e056ac8fecf8 1 /* mbed Microcontroller Library
valeyev 0:e056ac8fecf8 2 * Copyright (c) 2006-2013 ARM Limited
valeyev 0:e056ac8fecf8 3 *
valeyev 0:e056ac8fecf8 4 * Licensed under the Apache License, Version 2.0 (the "License");
valeyev 0:e056ac8fecf8 5 * you may not use this file except in compliance with the License.
valeyev 0:e056ac8fecf8 6 * You may obtain a copy of the License at
valeyev 0:e056ac8fecf8 7 *
valeyev 0:e056ac8fecf8 8 * http://www.apache.org/licenses/LICENSE-2.0
valeyev 0:e056ac8fecf8 9 *
valeyev 0:e056ac8fecf8 10 * Unless required by applicable law or agreed to in writing, software
valeyev 0:e056ac8fecf8 11 * distributed under the License is distributed on an "AS IS" BASIS,
valeyev 0:e056ac8fecf8 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
valeyev 0:e056ac8fecf8 13 * See the License for the specific language governing permissions and
valeyev 0:e056ac8fecf8 14 * limitations under the License.
valeyev 0:e056ac8fecf8 15 */
valeyev 0:e056ac8fecf8 16 #include "drivers/I2CSlave.h"
valeyev 0:e056ac8fecf8 17
valeyev 0:e056ac8fecf8 18 #if DEVICE_I2CSLAVE
valeyev 0:e056ac8fecf8 19
valeyev 0:e056ac8fecf8 20 namespace mbed {
valeyev 0:e056ac8fecf8 21
valeyev 0:e056ac8fecf8 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
valeyev 0:e056ac8fecf8 23 i2c_init(&_i2c, sda, scl);
valeyev 0:e056ac8fecf8 24 i2c_frequency(&_i2c, 100000);
valeyev 0:e056ac8fecf8 25 i2c_slave_mode(&_i2c, 1);
valeyev 0:e056ac8fecf8 26 }
valeyev 0:e056ac8fecf8 27
valeyev 0:e056ac8fecf8 28 void I2CSlave::frequency(int hz) {
valeyev 0:e056ac8fecf8 29 i2c_frequency(&_i2c, hz);
valeyev 0:e056ac8fecf8 30 }
valeyev 0:e056ac8fecf8 31
valeyev 0:e056ac8fecf8 32 void I2CSlave::address(int address) {
valeyev 0:e056ac8fecf8 33 int addr = (address & 0xFF) | 1;
valeyev 0:e056ac8fecf8 34 i2c_slave_address(&_i2c, 0, addr, 0);
valeyev 0:e056ac8fecf8 35 }
valeyev 0:e056ac8fecf8 36
valeyev 0:e056ac8fecf8 37 int I2CSlave::receive(void) {
valeyev 0:e056ac8fecf8 38 return i2c_slave_receive(&_i2c);
valeyev 0:e056ac8fecf8 39 }
valeyev 0:e056ac8fecf8 40
valeyev 0:e056ac8fecf8 41 int I2CSlave::read(char *data, int length) {
valeyev 0:e056ac8fecf8 42 return i2c_slave_read(&_i2c, data, length) != length;
valeyev 0:e056ac8fecf8 43 }
valeyev 0:e056ac8fecf8 44
valeyev 0:e056ac8fecf8 45 int I2CSlave::read(void) {
valeyev 0:e056ac8fecf8 46 return i2c_byte_read(&_i2c, 0);
valeyev 0:e056ac8fecf8 47 }
valeyev 0:e056ac8fecf8 48
valeyev 0:e056ac8fecf8 49 int I2CSlave::write(const char *data, int length) {
valeyev 0:e056ac8fecf8 50 return i2c_slave_write(&_i2c, data, length) != length;
valeyev 0:e056ac8fecf8 51 }
valeyev 0:e056ac8fecf8 52
valeyev 0:e056ac8fecf8 53 int I2CSlave::write(int data) {
valeyev 0:e056ac8fecf8 54 return i2c_byte_write(&_i2c, data);
valeyev 0:e056ac8fecf8 55 }
valeyev 0:e056ac8fecf8 56
valeyev 0:e056ac8fecf8 57 void I2CSlave::stop(void) {
valeyev 0:e056ac8fecf8 58 i2c_stop(&_i2c);
valeyev 0:e056ac8fecf8 59 }
valeyev 0:e056ac8fecf8 60
valeyev 0:e056ac8fecf8 61 }
valeyev 0:e056ac8fecf8 62
valeyev 0:e056ac8fecf8 63 #endif