Simon Cooksey / mbed-os

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drivers/SPISlave.cpp@0:fb7af294d5d9, 2016-11-17 (annotated)

Committer:
Simon Cooksey
Date:
Thu Nov 17 16:43:53 2016 +0000
Revision:
0:fb7af294d5d9
Initial commit

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Simon Cooksey 0:fb7af294d5d9 1 /* mbed Microcontroller Library
Simon Cooksey 0:fb7af294d5d9 2 * Copyright (c) 2006-2013 ARM Limited
Simon Cooksey 0:fb7af294d5d9 3 *
Simon Cooksey 0:fb7af294d5d9 4 * Licensed under the Apache License, Version 2.0 (the "License");
Simon Cooksey 0:fb7af294d5d9 5 * you may not use this file except in compliance with the License.
Simon Cooksey 0:fb7af294d5d9 6 * You may obtain a copy of the License at
Simon Cooksey 0:fb7af294d5d9 7 *
Simon Cooksey 0:fb7af294d5d9 8 * http://www.apache.org/licenses/LICENSE-2.0
Simon Cooksey 0:fb7af294d5d9 9 *
Simon Cooksey 0:fb7af294d5d9 10 * Unless required by applicable law or agreed to in writing, software
Simon Cooksey 0:fb7af294d5d9 11 * distributed under the License is distributed on an "AS IS" BASIS,
Simon Cooksey 0:fb7af294d5d9 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
Simon Cooksey 0:fb7af294d5d9 13 * See the License for the specific language governing permissions and
Simon Cooksey 0:fb7af294d5d9 14 * limitations under the License.
Simon Cooksey 0:fb7af294d5d9 15 */
Simon Cooksey 0:fb7af294d5d9 16 #include "drivers/SPISlave.h"
Simon Cooksey 0:fb7af294d5d9 17
Simon Cooksey 0:fb7af294d5d9 18 #if DEVICE_SPISLAVE
Simon Cooksey 0:fb7af294d5d9 19
Simon Cooksey 0:fb7af294d5d9 20 namespace mbed {
Simon Cooksey 0:fb7af294d5d9 21
Simon Cooksey 0:fb7af294d5d9 22 SPISlave::SPISlave(PinName mosi, PinName miso, PinName sclk, PinName ssel) :
Simon Cooksey 0:fb7af294d5d9 23 _spi(),
Simon Cooksey 0:fb7af294d5d9 24 _bits(8),
Simon Cooksey 0:fb7af294d5d9 25 _mode(0),
Simon Cooksey 0:fb7af294d5d9 26 _hz(1000000)
Simon Cooksey 0:fb7af294d5d9 27 {
Simon Cooksey 0:fb7af294d5d9 28 spi_init(&_spi, mosi, miso, sclk, ssel);
Simon Cooksey 0:fb7af294d5d9 29 spi_format(&_spi, _bits, _mode, 1);
Simon Cooksey 0:fb7af294d5d9 30 spi_frequency(&_spi, _hz);
Simon Cooksey 0:fb7af294d5d9 31 }
Simon Cooksey 0:fb7af294d5d9 32
Simon Cooksey 0:fb7af294d5d9 33 void SPISlave::format(int bits, int mode) {
Simon Cooksey 0:fb7af294d5d9 34 _bits = bits;
Simon Cooksey 0:fb7af294d5d9 35 _mode = mode;
Simon Cooksey 0:fb7af294d5d9 36 spi_format(&_spi, _bits, _mode, 1);
Simon Cooksey 0:fb7af294d5d9 37 }
Simon Cooksey 0:fb7af294d5d9 38
Simon Cooksey 0:fb7af294d5d9 39 void SPISlave::frequency(int hz) {
Simon Cooksey 0:fb7af294d5d9 40 _hz = hz;
Simon Cooksey 0:fb7af294d5d9 41 spi_frequency(&_spi, _hz);
Simon Cooksey 0:fb7af294d5d9 42 }
Simon Cooksey 0:fb7af294d5d9 43
Simon Cooksey 0:fb7af294d5d9 44 int SPISlave::receive(void) {
Simon Cooksey 0:fb7af294d5d9 45 return(spi_slave_receive(&_spi));
Simon Cooksey 0:fb7af294d5d9 46 }
Simon Cooksey 0:fb7af294d5d9 47
Simon Cooksey 0:fb7af294d5d9 48 int SPISlave::read(void) {
Simon Cooksey 0:fb7af294d5d9 49 return(spi_slave_read(&_spi));
Simon Cooksey 0:fb7af294d5d9 50 }
Simon Cooksey 0:fb7af294d5d9 51
Simon Cooksey 0:fb7af294d5d9 52 void SPISlave::reply(int value) {
Simon Cooksey 0:fb7af294d5d9 53 spi_slave_write(&_spi, value);
Simon Cooksey 0:fb7af294d5d9 54 }
Simon Cooksey 0:fb7af294d5d9 55
Simon Cooksey 0:fb7af294d5d9 56 } // namespace mbed
Simon Cooksey 0:fb7af294d5d9 57
Simon Cooksey 0:fb7af294d5d9 58 #endif