00001 /* ---------------------------------------------------------------------------- */ 00002 /* Atmel Microcontroller Software Support */ 00003 /* SAM Software Package License */ 00004 /* ---------------------------------------------------------------------------- */ 00005 /* Copyright (c) 2015, Atmel Corporation */ 00006 /* */ 00007 /* All rights reserved. */ 00008 /* */ 00009 /* Redistribution and use in source and binary forms, with or without */ 00010 /* modification, are permitted provided that the following condition is met: */ 00011 /* */ 00012 /* - Redistributions of source code must retain the above copyright notice, */ 00013 /* this list of conditions and the disclaimer below. */ 00014 /* */ 00015 /* Atmel's name may not be used to endorse or promote products derived from */ 00016 /* this software without specific prior written permission. */ 00017 /* */ 00018 /* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR */ 00019 /* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */ 00020 /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE */ 00021 /* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, */ 00022 /* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT */ 00023 /* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */ 00024 /* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */ 00025 /* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */ 00026 /* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, */ 00027 /* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ 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 * \brief Turn off the LCD. 00066 */ 00067 void LCDD_Off(void) 00068 { 00069 if (ili9488_lcdMode == ILI9488_SPIMODE) 00070 ILI9488_SpiOff(); 00071 else 00072 ILI9488_EbiOff(); 00073 } 00074 00075 /** 00076 * \brief Set the back-light of the LCD. 00077 * 00078 * \param level Back-light brightness level [1..16], 1 means maximum brightness. 00079 */ 00080 #if defined (BOARD_LCD_SPI_EXT1) 00081 void LCDD_SpiSetBacklight (uint32_t level) 00082 { 00083 /* Ensure valid level */ 00084 level = (level < 1) ? 1 : level; 00085 level = (level > 16) ? 16 : level; 00086 PWMC_SetDutyCycle(PWM0, CHANNEL_PWM_LCD, level); 00087 } 00088 #endif 00089 00090 /** 00091 * \brief Initializes the LCD controller. 00092 * Configure SMC to access LCD controller at 64MHz MCK. 00093 * \param lcdMode LCD_SPI or LCD_EBI mode 00094 * \param cRotate rotate direction 0: H 1:V 00095 */ 00096 void LCDD_Initialize(uint8_t lcdMode, sXdmad *dmad, uint8_t cRotate) 00097 { 00098 ili9488_lcdMode = lcdMode; 00099 00100 /* Initialize LCD controller */ 00101 if (lcdMode == ILI9488_SPIMODE) { 00102 ILI9488_SpiInitialize(dmad); 00103 ILI9488_SpiSetDisplayLandscape(1, cRotate); 00104 } else { 00105 ILI9488_EbiInitialize(dmad); 00106 ILI9488_EbiSetDisplayLandscape(1, cRotate); 00107 } 00108 00109 #if defined (BOARD_LCD_SPI_EXT1) 00110 /* Set LCD back-light */ 00111 LCDD_SpiSetBacklight(16); 00112 #endif 00113 00114 } 00115