Fork of Silabs MemoryLCD library
Dependents: demoUI whrmDemoUI Host_Software_MAX32664GWEB_HR_EXTENDED Host_Software_MAX32664GWEC_SpO2_HR-_EXTE ... more
LS013B7DH03.h
00001 /***************************************************************************//** 00002 * @file LS013B7DH03.h 00003 * @brief Driver class for the Sharp LS013B7DH03 memory LCD on some kits. 00004 ******************************************************************************* 00005 * @section License 00006 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b> 00007 ******************************************************************************* 00008 * 00009 * Permission is granted to anyone to use this software for any purpose, 00010 * including commercial applications, and to alter it and redistribute it 00011 * freely, subject to the following restrictions: 00012 * 00013 * 1. The origin of this software must not be misrepresented; you must not 00014 * claim that you wrote the original software. 00015 * 2. Altered source versions must be plainly marked as such, and must not be 00016 * misrepresented as being the original software. 00017 * 3. This notice may not be removed or altered from any source distribution. 00018 * 00019 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no 00020 * obligation to support this Software. Silicon Labs is providing the 00021 * Software "AS IS", with no express or implied warranties of any kind, 00022 * including, but not limited to, any implied warranties of merchantability 00023 * or fitness for any particular purpose or warranties against infringement 00024 * of any proprietary rights of a third party. 00025 * 00026 * Silicon Labs will not be liable for any consequential, incidental, or 00027 * special damages, or any other relief, or for any claim by any third party, 00028 * arising from your use of this Software. 00029 * 00030 ******************************************************************************/ 00031 00032 #ifndef SILABS_LS013B7DH03_H 00033 #define SILABS_LS013B7DH03_H 00034 00035 #include "platform.h" 00036 #include <mbed.h> 00037 #include "../screen/BufferedDisplay.h" 00038 #include "../screen/LCDSettings.h" 00039 //#include "Peripherals.h" 00040 00041 typedef void (*cbptr_t)(void); 00042 00043 #define LS013B7DH03_ERROR_BUSY -1 00044 #define LS013B7DH03_ERROR_SPI_BUSY -2 00045 #define LS013B7DH03_NO_ACTION -3 00046 #define LS013B7DH03_ERROR_ARGUMENT -4 00047 #define LS013B7DH03_OK 0 00048 00049 typedef enum { 00050 IDLE, // No operation currently ongoing 00051 CLEARING, // In the process of clearing the display 00052 WRITING, // In the process of sending a display update 00053 WAIT_CLEAR, // Going to clear after CS pin timeout 00054 WAIT_WRITE, // Going to write after CS pin timeout 00055 TRANSFERS_DONE, // Last transfer in progress 00056 DONE // Done with transmission, waiting for CS pin to become high 00057 } LS013B7DH03_state_t; 00058 00059 namespace silabs { 00060 class LS013B7DH03 : public BufferedDisplay { 00061 00062 public: 00063 00064 LS013B7DH03(SPI * spi, DigitalOut * CS, const char *name=NULL); 00065 00066 /** 00067 * Call this function to push all changes to the display 00068 */ 00069 int update( cbptr_t callback = NULL ); 00070 00071 /** 00072 * Immediately clear the display: set pixel buffer to zero and clear out the display. 00073 */ 00074 int clearImmediate( cbptr_t callback = NULL ); 00075 00076 /** 00077 * Function to test display buffer 00078 */ 00079 int showDemo(); 00080 00081 00082 00083 /** 00084 * Function to get internal refresh counter 00085 */ 00086 uint32_t getRefreshTicks(); 00087 00088 00089 protected: 00090 mbed::SPI *_spi; 00091 //mbed::DigitalOut *_EXTCOM; 00092 mbed::DigitalOut *_CS; 00093 00094 mbed::Ticker _displayToggler; 00095 mbed::Timeout _csTimeout; 00096 00097 event_callback_t _internalEventCallback; 00098 volatile uint32_t _refreshCount; 00099 uint8_t _lcdPolarity; 00100 LS013B7DH03_state_t _state; 00101 cbptr_t _completionCallbackPtr; 00102 volatile uint32_t _rowCount; 00103 uint8_t _cmd[2 + (DISPLAY_WIDTH / DISPLAY_BUFFER_TYPE_SIZE * sizeof(DISPLAY_BUFFER_TYPE))]; 00104 00105 /** 00106 * Callback handler for internal SPI transfers. 00107 */ 00108 void _cbHandler( int event ); 00109 00110 /** 00111 * Callback handler for internal SPI transfers triggered by timeout. 00112 */ 00113 void _cbHandlerTimeout( void ); 00114 00115 /** 00116 * Call this function at 55 ~ 65 Hz to keep the display from losing contrast. 00117 */ 00118 void toggle(); 00119 }; 00120 00121 } // namespace silabs 00122 00123 #endif //SILABS_LS013B7DH03_H
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