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https://gitea.osmocom.org/sim-card/simtrace2.git
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141 lines
4.4 KiB
C
141 lines
4.4 KiB
C
/* ----------------------------------------------------------------------------
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* ATMEL Microcontroller Software Support
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* ----------------------------------------------------------------------------
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* Copyright (c) 2009, Atmel Corporation
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* - Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the disclaimer below.
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*
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* Atmel's name may not be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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* ----------------------------------------------------------------------------
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*/
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/**
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* \file
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*
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* Implementation of LCD driver, Include LCD initialization,
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* LCD on/off and LCD backlight control.
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*
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*/
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "board.h"
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#include <stdint.h>
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/*----------------------------------------------------------------------------
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* Exported functions
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*----------------------------------------------------------------------------*/
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/**
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* \brief Initializes the LCD controller.
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* Configure SMC to access LCD controller at 64MHz MCK.
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*/
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extern void LCDD_Initialize( void )
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{
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const Pin pPins[] = {BOARD_LCD_PINS};
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Smc *pSmc = SMC;
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/* Enable pins */
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PIO_Configure(pPins, PIO_LISTSIZE(pPins));
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/* Enable peripheral clock */
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PMC_EnablePeripheral( ID_SMC ) ;
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/* EBI SMC Configuration */
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pSmc->SMC_CS_NUMBER[1].SMC_SETUP = SMC_SETUP_NWE_SETUP(2)
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| SMC_SETUP_NCS_WR_SETUP(2)
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| SMC_SETUP_NRD_SETUP(2)
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| SMC_SETUP_NCS_RD_SETUP(2);
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pSmc->SMC_CS_NUMBER[1].SMC_PULSE = SMC_PULSE_NWE_PULSE(4)
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| SMC_PULSE_NCS_WR_PULSE(4)
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| SMC_PULSE_NRD_PULSE(10)
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| SMC_PULSE_NCS_RD_PULSE(10);
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pSmc->SMC_CS_NUMBER[1].SMC_CYCLE = SMC_CYCLE_NWE_CYCLE(10)
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| SMC_CYCLE_NRD_CYCLE(22);
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pSmc->SMC_CS_NUMBER[1].SMC_MODE = SMC_MODE_READ_MODE
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| SMC_MODE_WRITE_MODE
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| SMC_MODE_DBW_8_BIT;
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/* Initialize LCD controller */
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LCD_Initialize() ;
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/* Initialize LCD controller */
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LCD_SetDisplayPortrait( 0 ) ;
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/* Set LCD backlight */
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LCDD_SetBacklight( 2 ) ;
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}
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/**
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* \brief Turn on the LCD.
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*/
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void LCDD_On(void)
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{
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LCD_On();
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}
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/**
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* \brief Turn off the LCD.
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*/
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void LCDD_Off(void)
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{
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LCD_Off();
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}
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/**
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* \brief Set the backlight of the LCD.
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*
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* \param level Backlight brightness level [1..16], 1 means maximum brightness.
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*/
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void LCDD_SetBacklight (uint32_t level)
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{
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uint32_t i;
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const Pin pPins[] = {BOARD_BACKLIGHT_PIN};
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/* Ensure valid level */
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level = (level < 1) ? 1 : level;
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level = (level > 16) ? 16 : level;
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/* Enable pins */
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PIO_Configure(pPins, PIO_LISTSIZE(pPins));
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/* Switch off backlight */
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PIO_Clear(pPins);
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i = 600 * (BOARD_MCK / 1000000); /* wait for at least 500us */
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while(i--);
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/* Set new backlight level */
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for (i = 0; i < level; i++) {
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PIO_Clear(pPins);
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PIO_Clear(pPins);
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PIO_Clear(pPins);
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PIO_Set(pPins);
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PIO_Set(pPins);
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PIO_Set(pPins);
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}
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}
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