Diff: Drivers/LS013B7DH03/LS013B7DH03.h

Revision:

1:f60eafbf009a

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Drivers/LS013B7DH03/LS013B7DH03.h	Wed Apr 10 14:56:25 2019 +0300
@@ -0,0 +1,133 @@
+/***************************************************************************//**
+ * @file LS013B7DH03.h
+ * @brief Driver class for the Sharp LS013B7DH03 memory LCD on some kits.
+ *******************************************************************************
+ * @section License
+ * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
+ *******************************************************************************
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
+ * obligation to support this Software. Silicon Labs is providing the
+ * Software "AS IS", with no express or implied warranties of any kind,
+ * including, but not limited to, any implied warranties of merchantability
+ * or fitness for any particular purpose or warranties against infringement
+ * of any proprietary rights of a third party.
+ *
+ * Silicon Labs will not be liable for any consequential, incidental, or
+ * special damages, or any other relief, or for any claim by any third party,
+ * arising from your use of this Software.
+ *
+ ******************************************************************************/
+
+#ifndef SILABS_LS013B7DH03_H
+#define SILABS_LS013B7DH03_H
+
+#include "platform.h"
+#include <mbed.h>
+#include "LCDSettings.h"
+#include "BufferedDisplay.h"
+#include "Peripherals.h"
+
+typedef void (*cbptr_t)(void);
+
+#define LS013B7DH03_ERROR_BUSY		-1
+#define LS013B7DH03_ERROR_SPI_BUSY	-2
+#define LS013B7DH03_NO_ACTION		-3
+#define LS013B7DH03_ERROR_ARGUMENT	-4
+#define	LS013B7DH03_OK				0
+
+typedef enum {
+	IDLE,			// No operation currently ongoing
+	CLEARING,		// In the process of clearing the display
+	WRITING,		// In the process of sending a display update
+	WAIT_CLEAR,		// Going to clear after CS pin timeout
+	WAIT_WRITE,		// Going to write after CS pin timeout
+	TRANSFERS_DONE, // Last transfer in progress
+	DONE			// Done with transmission, waiting for CS pin to become high
+} LS013B7DH03_state_t;
+
+namespace silabs {
+class LS013B7DH03 : public BufferedDisplay {
+
+public:
+
+	LS013B7DH03(SPI * spi, DigitalOut * CS,  const char *name=NULL);
+
+	/**
+	 * Call this function to push all changes to the display
+	 */
+	int update( cbptr_t callback = NULL );
+
+	/**
+	 * Immediately clear the display: set pixel buffer to zero and clear out the display.
+	 */
+	int clearImmediate( cbptr_t callback = NULL );
+
+	/**
+	 * Function to test display buffer
+	 */
+	int showDemo();
+
+
+
+	/**
+	 * Function to get internal refresh counter
+	 */
+	uint32_t getRefreshTicks();
+
+	/**
+	 * Function to get internal refresh counter
+	 */
+	int executeOnceLCD();
+
+
+protected:
+	mbed::SPI *_spi;
+	//mbed::DigitalOut *_EXTCOM;
+	mbed::DigitalOut *_CS;
+
+	mbed::Ticker _displayToggler;
+	mbed::Timeout _csTimeout;
+
+	event_callback_t _internalEventCallback;
+	volatile uint32_t _refreshCount;
+	uint8_t _lcdPolarity;
+	LS013B7DH03_state_t _state;
+	cbptr_t _completionCallbackPtr;
+	volatile uint32_t _rowCount;
+	uint8_t _cmd[2 + (DISPLAY_WIDTH / DISPLAY_BUFFER_TYPE_SIZE * sizeof(DISPLAY_BUFFER_TYPE))];
+
+	/**
+	 * Callback handler for internal SPI transfers.
+	 */
+	void _cbHandler( int event );
+
+	/**
+	 * Callback handler for internal SPI transfers triggered by timeout.
+	 */
+	void _cbHandlerTimeout( void );
+
+	/**
+	 * Call this function at 55 ~ 65 Hz to keep the display from losing contrast.
+	 */
+	void toggle();
+
+	/**
+	 *
+	 */
+	bool interrupt_received;
+};
+
+} // namespace silabs
+
+#endif //SILABS_LS013B7DH03_H