SAMV71 Xplained Ultra Software Package 1.3

lcdd.c

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00001 /* ----------------------------------------------------------------------------
00002  *         SAM Software Package License
00003  * ----------------------------------------------------------------------------
00004  * Copyright (c) 2011, Atmel Corporation
00005  *
00006  * All rights reserved.
00007  *
00008  * Redistribution and use in source and binary forms, with or without
00009  * modification, are permitted provided that the following conditions are met:
00010  *
00011  * - Redistributions of source code must retain the above copyright notice,
00012  * this list of conditions and the disclaimer below.
00013  *
00014  * Atmel's name may not be used to endorse or promote products derived from
00015  * this software without specific prior written permission.
00016  *
00017  * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
00018  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
00019  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
00020  * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
00021  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00022  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
00023  * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
00024  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
00025  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
00026  * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00027  * ----------------------------------------------------------------------------
00028  */
00029 
00030 /**
00031  * \file
00032  *
00033  * Implementation of LCD driver, Include LCD initialization,
00034  * LCD on/off and LCD back-light control.
00035  *
00036  */
00037 
00038 /*----------------------------------------------------------------------------
00039  *        Headers
00040  *----------------------------------------------------------------------------*/
00041 #include "board.h"
00042 #include <stdint.h>
00043 
00044 /*----------------------------------------------------------------------------
00045  *        Local variables
00046  *----------------------------------------------------------------------------*/
00047  uint8_t ili9488_lcdMode;
00048 
00049 /*----------------------------------------------------------------------------
00050  *        Exported functions
00051  *----------------------------------------------------------------------------*/
00052 
00053 /**
00054  * \brief Turn on the LCD.
00055  */
00056 void LCDD_On( void)
00057 {
00058     if (ili9488_lcdMode == ILI9488_SPIMODE ) {
00059         ILI9488_SpiOn();
00060     } else {
00061         ILI9488_EbiOn();
00062     } 
00063 }
00064 
00065 /**
00066  * \brief Turn off the LCD.
00067  */
00068 void LCDD_Off( void)
00069 {
00070     if (ili9488_lcdMode == ILI9488_SPIMODE ) {
00071         ILI9488_SpiOff();
00072     } else {
00073         ILI9488_EbiOff();
00074     }
00075 }
00076 
00077 /**
00078  * \brief Set the back-light of the LCD.
00079  *
00080  * \param level   Back-light brightness level [1..16], 1 means maximum brightness.
00081  */
00082 #if defined (BOARD_LCD_SPI_EXT1)
00083 void LCDD_SpiSetBacklight (uint32_t level)
00084 {
00085     /* Ensure valid level */
00086     level = (level < 1) ? 1 : level;
00087     level = (level > 16) ? 16 : level;
00088     PWMC_SetDutyCycle(PWM0, CHANNEL_PWM_LCD, level);
00089 }
00090 #endif
00091 
00092 /**
00093  * \brief Initializes the LCD controller.
00094  * Configure SMC to access LCD controller at 64MHz MCK.
00095  * \param lcdMode LCD_SPI or LCD_EBI mode
00096  * \param cRotate rotate direction 0: H 1:V
00097  */
00098 void LCDD_Initialize( uint8_t lcdMode, sXdmad * dmad, uint8_t cRotate)
00099 {
00100     ili9488_lcdMode = lcdMode;
00101     /* Initialize LCD controller */
00102     if (lcdMode == ILI9488_SPIMODE ) {
00103         ILI9488_SpiInitialize(dmad) ;
00104         ILI9488_SpiSetDisplayLandscape(1, cRotate);
00105     } else {
00106         ILI9488_EbiInitialize(dmad) ;
00107         ILI9488_EbiSetDisplayLandscape(1, cRotate);
00108     }
00109 
00110 #if defined (BOARD_LCD_SPI_EXT1)
00111     /* Set LCD back-light */
00112     LCDD_SpiSetBacklight( 16 );
00113 #endif
00114 
00115 }
00116 
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