Takaaki Numai / mbed-dev

inport from local

Dependents:   Hobbyking_Cheetah_0511

drivers/I2CSlave.cpp@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1 /* mbed Microcontroller Library
NYX 0:85b3fd62ea1a 2 * Copyright (c) 2006-2013 ARM Limited
NYX 0:85b3fd62ea1a 3 *
NYX 0:85b3fd62ea1a 4 * Licensed under the Apache License, Version 2.0 (the "License");
NYX 0:85b3fd62ea1a 5 * you may not use this file except in compliance with the License.
NYX 0:85b3fd62ea1a 6 * You may obtain a copy of the License at
NYX 0:85b3fd62ea1a 7 *
NYX 0:85b3fd62ea1a 8 * http://www.apache.org/licenses/LICENSE-2.0
NYX 0:85b3fd62ea1a 9 *
NYX 0:85b3fd62ea1a 10 * Unless required by applicable law or agreed to in writing, software
NYX 0:85b3fd62ea1a 11 * distributed under the License is distributed on an "AS IS" BASIS,
NYX 0:85b3fd62ea1a 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
NYX 0:85b3fd62ea1a 13 * See the License for the specific language governing permissions and
NYX 0:85b3fd62ea1a 14 * limitations under the License.
NYX 0:85b3fd62ea1a 15 */
NYX 0:85b3fd62ea1a 16 #include "drivers/I2CSlave.h"
NYX 0:85b3fd62ea1a 17
NYX 0:85b3fd62ea1a 18 #if DEVICE_I2CSLAVE
NYX 0:85b3fd62ea1a 19
NYX 0:85b3fd62ea1a 20 namespace mbed {
NYX 0:85b3fd62ea1a 21
NYX 0:85b3fd62ea1a 22 I2CSlave::I2CSlave(PinName sda, PinName scl) : _i2c() {
NYX 0:85b3fd62ea1a 23 i2c_init(&_i2c, sda, scl);
NYX 0:85b3fd62ea1a 24 i2c_frequency(&_i2c, 100000);
NYX 0:85b3fd62ea1a 25 i2c_slave_mode(&_i2c, 1);
NYX 0:85b3fd62ea1a 26 }
NYX 0:85b3fd62ea1a 27
NYX 0:85b3fd62ea1a 28 void I2CSlave::frequency(int hz) {
NYX 0:85b3fd62ea1a 29 i2c_frequency(&_i2c, hz);
NYX 0:85b3fd62ea1a 30 }
NYX 0:85b3fd62ea1a 31
NYX 0:85b3fd62ea1a 32 void I2CSlave::address(int address) {
NYX 0:85b3fd62ea1a 33 int addr = (address & 0xFF) | 1;
NYX 0:85b3fd62ea1a 34 i2c_slave_address(&_i2c, 0, addr, 0);
NYX 0:85b3fd62ea1a 35 }
NYX 0:85b3fd62ea1a 36
NYX 0:85b3fd62ea1a 37 int I2CSlave::receive(void) {
NYX 0:85b3fd62ea1a 38 return i2c_slave_receive(&_i2c);
NYX 0:85b3fd62ea1a 39 }
NYX 0:85b3fd62ea1a 40
NYX 0:85b3fd62ea1a 41 int I2CSlave::read(char *data, int length) {
NYX 0:85b3fd62ea1a 42 return i2c_slave_read(&_i2c, data, length) != length;
NYX 0:85b3fd62ea1a 43 }
NYX 0:85b3fd62ea1a 44
NYX 0:85b3fd62ea1a 45 int I2CSlave::read(void) {
NYX 0:85b3fd62ea1a 46 return i2c_byte_read(&_i2c, 0);
NYX 0:85b3fd62ea1a 47 }
NYX 0:85b3fd62ea1a 48
NYX 0:85b3fd62ea1a 49 int I2CSlave::write(const char *data, int length) {
NYX 0:85b3fd62ea1a 50 return i2c_slave_write(&_i2c, data, length) != length;
NYX 0:85b3fd62ea1a 51 }
NYX 0:85b3fd62ea1a 52
NYX 0:85b3fd62ea1a 53 int I2CSlave::write(int data) {
NYX 0:85b3fd62ea1a 54 return i2c_byte_write(&_i2c, data);
NYX 0:85b3fd62ea1a 55 }
NYX 0:85b3fd62ea1a 56
NYX 0:85b3fd62ea1a 57 void I2CSlave::stop(void) {
NYX 0:85b3fd62ea1a 58 i2c_stop(&_i2c);
NYX 0:85b3fd62ea1a 59 }
NYX 0:85b3fd62ea1a 60
NYX 0:85b3fd62ea1a 61 }
NYX 0:85b3fd62ea1a 62
NYX 0:85b3fd62ea1a 63 #endif