mbed library sources
Dependents: STM32F103C8T6-RangoTec STM32-103C8_Plantilla_USB
Diff: common/SPI.cpp
- Revision:
- 13:0645d8841f51
- Parent:
- 10:3bc89ef62ce7
- Child:
- 50:b08ceb75017d
--- a/common/SPI.cpp Wed Jul 24 11:11:21 2013 +0100 +++ b/common/SPI.cpp Mon Aug 05 14:12:34 2013 +0300 @@ -1,62 +1,62 @@ -/* mbed Microcontroller Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ -#include "SPI.h" - -#if DEVICE_SPI - -namespace mbed { - -SPI::SPI(PinName mosi, PinName miso, PinName sclk) { - spi_init(&_spi, mosi, miso, sclk, NC); - _bits = 8; - _mode = 0; - _hz = 1000000; - spi_format(&_spi, _bits, _mode, 0); - spi_frequency(&_spi, _hz); -} - -void SPI::format(int bits, int mode) { - _bits = bits; - _mode = mode; - SPI::_owner = NULL; // Not that elegant, but works. rmeyer - aquire(); -} - -void SPI::frequency(int hz) { - _hz = hz; - SPI::_owner = NULL; // Not that elegant, but works. rmeyer - aquire(); -} - -SPI* SPI::_owner = NULL; - -// ignore the fact there are multiple physical spis, and always update if it wasnt us last -void SPI::aquire() { - if (_owner != this) { - spi_format(&_spi, _bits, _mode, 0); - spi_frequency(&_spi, _hz); - _owner = this; - } -} - -int SPI::write(int value) { - aquire(); - return spi_master_write(&_spi, value); -} - -} // namespace mbed - -#endif +/* mbed Microcontroller Library + * Copyright (c) 2006-2013 ARM Limited + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +#include "SPI.h" + +#if DEVICE_SPI + +namespace mbed { + +SPI::SPI(PinName mosi, PinName miso, PinName sclk) { + spi_init(&_spi, mosi, miso, sclk, NC); + _bits = 8; + _mode = 0; + _hz = 1000000; + spi_format(&_spi, _bits, _mode, 0); + spi_frequency(&_spi, _hz); +} + +void SPI::format(int bits, int mode) { + _bits = bits; + _mode = mode; + SPI::_owner = NULL; // Not that elegant, but works. rmeyer + aquire(); +} + +void SPI::frequency(int hz) { + _hz = hz; + SPI::_owner = NULL; // Not that elegant, but works. rmeyer + aquire(); +} + +SPI* SPI::_owner = NULL; + +// ignore the fact there are multiple physical spis, and always update if it wasnt us last +void SPI::aquire() { + if (_owner != this) { + spi_format(&_spi, _bits, _mode, 0); + spi_frequency(&_spi, _hz); + _owner = this; + } +} + +int SPI::write(int value) { + aquire(); + return spi_master_write(&_spi, value); +} + +} // namespace mbed + +#endif