#ifndef ucoo_hal_spi_spi_soft_hh #define ucoo_hal_spi_spi_soft_hh // ucoolib - Microcontroller object oriented library. {{{ // // Copyright (C) 2013 Nicolas Schodet // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // // }}} #include "ucoo/intf/spi_master.hh" #include "ucoo/intf/io.hh" namespace ucoo { /// Software implementation of a SPI master. class SpiSoftMaster : public SpiMaster { public: /// Constructor, need all SPI pins. SpiSoftMaster (Io &sck, Io &mosi, Io &miso); /// Destructor, disable. ~SpiSoftMaster (); /// See SpiMaster::enable. void enable (int speed_hz, SpiMode mode = SPI_MODE_0); /// See SpiMaster::disable. void disable (); /// See SpiMaster::send_and_recv. void send_and_recv (const char *tx_buf, char *rx_buf, int count); /// Send and receive one byte. char send_and_recv (char tx); /// See SpiMaster::send. void send (const char *tx_buf, int count); /// Send one byte. void send (char tx); /// See SpiMaster::recv. void recv (char *rx_buf, int count); /// Receive one byte. char recv (); private: Io &sck_, &mosi_, &miso_; int half_period_ns_; bool cpha_; bool enabled_; }; } // namespace ucoo #endif // ucoo_hal_spi_spi_soft_hh