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mbed-dev/drivers/SPISlave.cpp@1:d0dfbce63a89, 2017-02-24 (annotated)

Committer:
elmot
Date:
Fri Feb 24 21:13:56 2017 +0000
Revision:
1:d0dfbce63a89
Ready-to-copy

Who changed what in which revision?

UserRevisionLine numberNew contents of line
elmot 1:d0dfbce63a89 1 /* mbed Microcontroller Library
elmot 1:d0dfbce63a89 2 * Copyright (c) 2006-2013 ARM Limited
elmot 1:d0dfbce63a89 3 *
elmot 1:d0dfbce63a89 4 * Licensed under the Apache License, Version 2.0 (the "License");
elmot 1:d0dfbce63a89 5 * you may not use this file except in compliance with the License.
elmot 1:d0dfbce63a89 6 * You may obtain a copy of the License at
elmot 1:d0dfbce63a89 7 *
elmot 1:d0dfbce63a89 8 * http://www.apache.org/licenses/LICENSE-2.0
elmot 1:d0dfbce63a89 9 *
elmot 1:d0dfbce63a89 10 * Unless required by applicable law or agreed to in writing, software
elmot 1:d0dfbce63a89 11 * distributed under the License is distributed on an "AS IS" BASIS,
elmot 1:d0dfbce63a89 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elmot 1:d0dfbce63a89 13 * See the License for the specific language governing permissions and
elmot 1:d0dfbce63a89 14 * limitations under the License.
elmot 1:d0dfbce63a89 15 */
elmot 1:d0dfbce63a89 16 #include "drivers/SPISlave.h"
elmot 1:d0dfbce63a89 17
elmot 1:d0dfbce63a89 18 #if DEVICE_SPISLAVE
elmot 1:d0dfbce63a89 19
elmot 1:d0dfbce63a89 20 namespace mbed {
elmot 1:d0dfbce63a89 21
elmot 1:d0dfbce63a89 22 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
elmot 1:d0dfbce63a89 23 _spi(),
elmot 1:d0dfbce63a89 24 _bits(8),
elmot 1:d0dfbce63a89 25 _mode(0),
elmot 1:d0dfbce63a89 26 _hz(1000000)
elmot 1:d0dfbce63a89 27 {
elmot 1:d0dfbce63a89 28 spi_init(&_spi, mosi, miso, sclk, ssel);
elmot 1:d0dfbce63a89 29 spi_format(&_spi, _bits, _mode, 1);
elmot 1:d0dfbce63a89 30 spi_frequency(&_spi, _hz);
elmot 1:d0dfbce63a89 31 }
elmot 1:d0dfbce63a89 32
elmot 1:d0dfbce63a89 33 void SPISlave::format(int bits, int mode) {
elmot 1:d0dfbce63a89 34 _bits = bits;
elmot 1:d0dfbce63a89 35 _mode = mode;
elmot 1:d0dfbce63a89 36 spi_format(&_spi, _bits, _mode, 1);
elmot 1:d0dfbce63a89 37 }
elmot 1:d0dfbce63a89 38
elmot 1:d0dfbce63a89 39 void SPISlave::frequency(int hz) {
elmot 1:d0dfbce63a89 40 _hz = hz;
elmot 1:d0dfbce63a89 41 spi_frequency(&_spi, _hz);
elmot 1:d0dfbce63a89 42 }
elmot 1:d0dfbce63a89 43
elmot 1:d0dfbce63a89 44 int SPISlave::receive(void) {
elmot 1:d0dfbce63a89 45 return(spi_slave_receive(&_spi));
elmot 1:d0dfbce63a89 46 }
elmot 1:d0dfbce63a89 47
elmot 1:d0dfbce63a89 48 int SPISlave::read(void) {
elmot 1:d0dfbce63a89 49 return(spi_slave_read(&_spi));
elmot 1:d0dfbce63a89 50 }
elmot 1:d0dfbce63a89 51
elmot 1:d0dfbce63a89 52 void SPISlave::reply(int value) {
elmot 1:d0dfbce63a89 53 spi_slave_write(&_spi, value);
elmot 1:d0dfbce63a89 54 }
elmot 1:d0dfbce63a89 55
elmot 1:d0dfbce63a89 56 } // namespace mbed
elmot 1:d0dfbce63a89 57
elmot 1:d0dfbce63a89 58 #endif