maa: add global maa.h and maa.hpp and stop using /usr/include/maa/

* pkg-config now only sees maa.h & maa.hpp
* usage of maa/*.{h,hpp} is still allowed
* examples updated to use maa.{h,hpp}

Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>

api/maa/spi.hpp

@@ -0,0 +1,112 @@
+/*
+ * Author: Brendan Le Foll <brendan.le.foll@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * 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.
+ */
+
+#pragma once
+
+#include "spi.h"
+
+namespace maa {
+
+/**
+ * @brief C++ API to System Packet Interface
+ *
+ * This file defines the SPI C++ interface for libmaa
+ *
+ * @snippet Spi-pot.cpp Interesting
+ */
+class Spi {
+    public:
+        /**
+         * Initialise SPI object using the board mapping to set muxes
+         *
+         * @param bus to use, as listed in the platform definition, normally 0
+         */
+        Spi(int bus) {
+            m_spi = maa_spi_init(bus);
+        }
+        /**
+         * Closes spi bus
+         */
+        ~Spi() {
+            maa_spi_stop(m_spi);
+        }
+        /**
+         * Set the SPI device mode. see spidev0-3
+         *
+         * @param mode the mode. See Linux spidev doc
+         * @return Result of operation
+         */
+        maa_result_t mode(unsigned short mode) {
+            return maa_spi_mode(m_spi, mode);
+        }
+        /**
+         * Set the SPI device operating clock frequency
+         *
+         * @param hz the frequency to set in hz
+         * @return Result of operation
+         */
+        maa_result_t frequency(int hz) {
+            return maa_spi_frequency(m_spi, hz);
+        }
+        /**
+         * Write single byte to the SPI device
+         *
+         * @param data the byte to send
+         * @return data received on the miso line
+         */
+        unsigned char write(uint8_t data) {
+            return (unsigned char) maa_spi_write(m_spi, data);
+        }
+        /**
+         * Write buffer of bytes to SPI device
+         *
+         * @param data buffer to send
+         * @param length size of buffer to send
+         * @return char* data received on the miso line. Same length as passed in
+         */
+        unsigned char* write_buf(uint8_t* data, int length) {
+            return (unsigned char*) maa_spi_write_buf(m_spi, data, length);
+        }
+        /**
+         * Change the SPI lsb mode
+         *
+         * @param lsb Use least significant bit transmission - 0 for msbi
+         * @return Result of operation
+         */
+        maa_result_t lsbmode(bool lsb) {
+            return maa_spi_lsbmode(m_spi, (maa_boolean_t) lsb);
+        }
+        /**
+         * Set bits per mode on transaction, default is 8
+         *
+         * @param bits bits per word
+         * @return Result of operation
+         */
+        maa_result_t bit_per_word(unsigned int bits) {
+            return maa_spi_bit_per_word(m_spi, bits);
+        }
+            private:
+                maa_spi_context m_spi;
+        };
+}