Lee Kai Xuan / mbed-os

mbed-os

Fork of mbed-os by erkin yucel

drivers/SPISlave.cpp@0:f269e3021894, 2016-10-23 (annotated)

Committer:
elessair
Date:
Sun Oct 23 15:10:02 2016 +0000
Revision:
0:f269e3021894
Initial commit

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elessair 0:f269e3021894 1 /* mbed Microcontroller Library
elessair 0:f269e3021894 2 * Copyright (c) 2006-2013 ARM Limited
elessair 0:f269e3021894 3 *
elessair 0:f269e3021894 4 * Licensed under the Apache License, Version 2.0 (the "License");
elessair 0:f269e3021894 5 * you may not use this file except in compliance with the License.
elessair 0:f269e3021894 6 * You may obtain a copy of the License at
elessair 0:f269e3021894 7 *
elessair 0:f269e3021894 8 * http://www.apache.org/licenses/LICENSE-2.0
elessair 0:f269e3021894 9 *
elessair 0:f269e3021894 10 * Unless required by applicable law or agreed to in writing, software
elessair 0:f269e3021894 11 * distributed under the License is distributed on an "AS IS" BASIS,
elessair 0:f269e3021894 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
elessair 0:f269e3021894 13 * See the License for the specific language governing permissions and
elessair 0:f269e3021894 14 * limitations under the License.
elessair 0:f269e3021894 15 */
elessair 0:f269e3021894 16 #include "drivers/SPISlave.h"
elessair 0:f269e3021894 17
elessair 0:f269e3021894 18 #if DEVICE_SPISLAVE
elessair 0:f269e3021894 19
elessair 0:f269e3021894 20 namespace mbed {
elessair 0:f269e3021894 21
elessair 0:f269e3021894 22 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
elessair 0:f269e3021894 23 _spi(),
elessair 0:f269e3021894 24 _bits(8),
elessair 0:f269e3021894 25 _mode(0),
elessair 0:f269e3021894 26 _hz(1000000)
elessair 0:f269e3021894 27 {
elessair 0:f269e3021894 28 spi_init(&_spi, mosi, miso, sclk, ssel);
elessair 0:f269e3021894 29 spi_format(&_spi, _bits, _mode, 1);
elessair 0:f269e3021894 30 spi_frequency(&_spi, _hz);
elessair 0:f269e3021894 31 }
elessair 0:f269e3021894 32
elessair 0:f269e3021894 33 void SPISlave::format(int bits, int mode) {
elessair 0:f269e3021894 34 _bits = bits;
elessair 0:f269e3021894 35 _mode = mode;
elessair 0:f269e3021894 36 spi_format(&_spi, _bits, _mode, 1);
elessair 0:f269e3021894 37 }
elessair 0:f269e3021894 38
elessair 0:f269e3021894 39 void SPISlave::frequency(int hz) {
elessair 0:f269e3021894 40 _hz = hz;
elessair 0:f269e3021894 41 spi_frequency(&_spi, _hz);
elessair 0:f269e3021894 42 }
elessair 0:f269e3021894 43
elessair 0:f269e3021894 44 int SPISlave::receive(void) {
elessair 0:f269e3021894 45 return(spi_slave_receive(&_spi));
elessair 0:f269e3021894 46 }
elessair 0:f269e3021894 47
elessair 0:f269e3021894 48 int SPISlave::read(void) {
elessair 0:f269e3021894 49 return(spi_slave_read(&_spi));
elessair 0:f269e3021894 50 }
elessair 0:f269e3021894 51
elessair 0:f269e3021894 52 void SPISlave::reply(int value) {
elessair 0:f269e3021894 53 spi_slave_write(&_spi, value);
elessair 0:f269e3021894 54 }
elessair 0:f269e3021894 55
elessair 0:f269e3021894 56 } // namespace mbed
elessair 0:f269e3021894 57
elessair 0:f269e3021894 58 #endif