Diff: e4a10ed6eb92/HSP/QuadSPI/QuadSpi.cpp

Revision:

20:6d2af70c92ab

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/e4a10ed6eb92/HSP/QuadSPI/QuadSpi.cpp	Tue Apr 06 06:41:40 2021 +0000
@@ -0,0 +1,70 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * 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 MAXIM INTEGRATED 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.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+#include "QuadSpi.h"
+#include "spi_multi_api.h"
+
+/** Initialize a SPI master for Quad SPI
+ *
+ * @param mosi   Pin used for Master Out Slave In
+ * @param miso   Pin used for Master In Slave Out
+ * @param sclk   Pin used for Clock
+ * @param ssel   Pin used for Chip Select
+ */
+QuadSPI::QuadSPI(PinName mosi, PinName miso, PinName sclk, PinName ssel)
+    : SPI(mosi, miso, sclk, ssel) {
+}
+
+/******************************************************************************/
+void QuadSPI::setQuadMode() { spi_master_width(&_spi, WidthQuad); }
+/******************************************************************************/
+void QuadSPI::setSingleMode() { spi_master_width(&_spi, WidthSingle); }
+
+/** Write a byte out in master mode and receive a value
+ *
+ * @param value   Byte Value to send
+ * @return Returns Zero
+ */
+int QuadSPI::write(int value) {
+  aquire();
+  spi_master_write(&_spi, value);
+  return 0;
+}
+
+/** Read a byte in master mode using Quad SPI simplex transfer
+ *
+ * @return Returns the value received from Quad SPI
+ */
+int QuadSPI::read(void) {
+  aquire();
+  return spi_master_read(&_spi);
+}