EFM32_SegmentLCD.cpp

00001 /***************************************************************************//**
00002  * @file EFM32_SegmentLCD.cpp
00003  * @brief Driver class for the segment LCD's on some of the EFM32 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 #include <mbed.h>
00033 #include "pinmap.h"
00034 #include "EFM32_SegmentLCD.h"
00035 #include "segmentlcd.h"
00036 #include "sleep_api.h"
00037 
00038 namespace silabs {
00039 /*
00040  * Constructor.
00041  */
00042 EFM32_SegmentLCD::EFM32_SegmentLCD() {
00043     /* Set all pins used for the LCD to disabled. */
00044     uint32_t num_pins = sizeof(outPins) / sizeof(outPins[0]);
00045     for(uint8_t i = 0; i < num_pins; i++) {
00046         pin_mode(outPins[i], Disabled);
00047     }
00048 
00049     /* Initialize the LCD without voltage booster */
00050     SegmentLCD_Init(false);
00051     
00052     /* Block sleep mode */
00053     blockSleepMode(EM2);
00054 }
00055 
00056 EFM32_SegmentLCD::~EFM32_SegmentLCD() {
00057     /* Shut off LCD peripheral */
00058     SegmentLCD_Disable();
00059     
00060     /* Unblock sleep mode */
00061     unblockSleepMode(EM2);
00062 }
00063 
00064 void EFM32_SegmentLCD::AllOff( void ) {
00065     SegmentLCD_AllOff();
00066 }
00067 
00068 void EFM32_SegmentLCD::AllOn( void ) {
00069     SegmentLCD_AllOn();
00070 }
00071 
00072 /*
00073  * Switch off (clear) the alphanumeric portion of the display
00074  */
00075 void EFM32_SegmentLCD::AlphaNumberOff(void) {
00076     SegmentLCD_AlphaNumberOff();
00077 }
00078 
00079 /*
00080  * Switch specified segment on the ring on/off
00081  * anum: ring segment index
00082  * on: true to turn on, false to turn off
00083  */
00084 void EFM32_SegmentLCD::ARing(int anum, bool on) {
00085     SegmentLCD_ARing(anum, (on ? 1 : 0));
00086 }
00087 
00088 /*
00089  * Display a battery level on the LCD.
00090  * 0 = off
00091  * 1 = lowest block
00092  * 2 = lowest + second-to-lowest
00093  * ...
00094  */
00095 void EFM32_SegmentLCD::Battery(int batteryLevel) {
00096     SegmentLCD_Battery(batteryLevel);
00097 }
00098 
00099 /*
00100  * Display an energy mode ring on the LCD.
00101  * em = energy mode number to display
00102  * on = true to turn on, false to turn off.
00103  */
00104 void EFM32_SegmentLCD::EnergyMode(int em, bool on) {
00105     SegmentLCD_EnergyMode(em, (on ? 1 : 0));
00106 }
00107 
00108 /*
00109  * Display an unsigned integer on the alphanumeric
00110  * portion of the display as a hex value.
00111  *
00112  * num = number to display
00113  */
00114 void EFM32_SegmentLCD::LowerHex( uint32_t num ) {
00115     SegmentLCD_LowerHex(num);
00116 }
00117 
00118 /*
00119  * Display a signed integer as decimal number on
00120  * the alphanumeric part of the display.
00121  */
00122 void EFM32_SegmentLCD::LowerNumber( int num ) {
00123     SegmentLCD_LowerNumber(num);
00124 }
00125 
00126 /*
00127  * Display a signed integer on the numeric part
00128  * of the display (clock area).
00129  * max = 9999, min = -9999
00130  */
00131 void EFM32_SegmentLCD::Number(int value) {
00132     SegmentLCD_Number(value);
00133 }
00134 
00135 /*
00136  * Clear the numeric part of the display.
00137  */
00138 void EFM32_SegmentLCD::NumberOff(void) {
00139     SegmentLCD_NumberOff();
00140 }
00141 
00142 /*
00143  * Turn a predefined symbol on or off.
00144  * lcdSymbol = predefined symbol in segmentlcdconfig_*.h
00145  * on = true to turn on, false to turn off.
00146  */
00147 void EFM32_SegmentLCD::Symbol(lcdSymbol s, bool on) {
00148     SegmentLCD_Symbol(s, (on ? 1 : 0));
00149 }
00150 
00151 /*
00152  * Display an unsigned short integer as a hex value
00153  * on the numeric part of the display.
00154  * max = FFFF, min = 0
00155  */
00156 void EFM32_SegmentLCD::UnsignedHex(uint16_t value) {
00157     SegmentLCD_UnsignedHex(value);
00158 }
00159 
00160 /*
00161  * Display a 7-character string on the alphanumeric
00162  * portion of the display.
00163  */
00164 void EFM32_SegmentLCD::Write(char *string) {
00165     SegmentLCD_Write(string);
00166 }
00167 
00168 
00169 }