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/* ----------------------------------------------------------------------------

 *         ATMEL Microcontroller Software Support

 * ----------------------------------------------------------------------------

 * Copyright (c) 2008, Atmel Corporation

 *

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions are met:

 *

 * - Redistributions of source code must retain the above copyright notice,

 * this list of conditions and the disclaimer below.

 *

 * Atmel's name may not be used to endorse or promote products derived from

 * this software without specific prior written permission.

 *

 * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF

 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE

 * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,

 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,

 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF

 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 * ----------------------------------------------------------------------------

 */

//------------------------------------------------------------------------------

//         Headers

//------------------------------------------------------------------------------

#include "lcdd.h"

#include <board.h>

#include <pmc/pmc.h>

#include <hx8347/hx8347.h>

#include <pio/pio.h>

#include "FreeRTOS.h"

#include "task.h"

//------------------------------------------------------------------------------

//         Global functions

//------------------------------------------------------------------------------

//------------------------------------------------------------------------------

/// Initializes the LCD controller.

/// \param pLcdBase   LCD base address.

//------------------------------------------------------------------------------

void LCDD_Initialize(void)

{

    const Pin pPins[] = {BOARD_LCD_PINS};

    AT91PS_HSMC4_CS pSMC = AT91C_BASE_HSMC4_CS2;

    unsigned int rMode;

    // Enable pins

    PIO_Configure(pPins, PIO_LISTSIZE(pPins));

    // Enable peripheral clock

    PMC_EnablePeripheral(AT91C_ID_HSMC4);

    // EBI SMC Configuration

    pSMC->HSMC4_SETUP = 0

                    | ((4 <<  0) & AT91C_HSMC4_NWE_SETUP)

                    | ((2 <<  8) & AT91C_HSMC4_NCS_WR_SETUP)

                    | ((4 << 16) & AT91C_HSMC4_NRD_SETUP)

                    | ((2 << 24) & AT91C_HSMC4_NCS_RD_SETUP)

                    ;

    pSMC->HSMC4_PULSE = 0

                    | (( 5 <<  0) & AT91C_HSMC4_NWE_PULSE)

                    | (( 18 <<  8) & AT91C_HSMC4_NCS_WR_PULSE)

                    | (( 5 << 16) & AT91C_HSMC4_NRD_PULSE)

                    | (( 18 << 24) & AT91C_HSMC4_NCS_RD_PULSE)

                    ;

    pSMC->HSMC4_CYCLE = 0

                  | ((22 <<  0) & AT91C_HSMC4_NWE_CYCLE)

                  | ((22 << 16) & AT91C_HSMC4_NRD_CYCLE)

                  ;

    rMode = pSMC->HSMC4_MODE;

    pSMC->HSMC4_MODE = (rMode & ~(AT91C_HSMC4_DBW | AT91C_HSMC4_READ_MODE

                 | AT91C_HSMC4_WRITE_MODE | AT91C_HSMC4_PMEN))

                 | (AT91C_HSMC4_READ_MODE)

                 | (AT91C_HSMC4_WRITE_MODE)

                 | (AT91C_HSMC4_DBW_WIDTH_SIXTEEN_BITS)

                 ;

    // Initialize LCD controller (HX8347)

    LCD_Initialize((void *)BOARD_LCD_BASE);

    // Set LCD backlight

    LCDD_SetBacklight(25);

}

//------------------------------------------------------------------------------

/// Turn on the LCD

//------------------------------------------------------------------------------

void LCDD_Start(void)

{

    LCD_On((void *)BOARD_LCD_BASE);

}

//------------------------------------------------------------------------------

/// Turn off the LCD

//------------------------------------------------------------------------------

void LCDD_Stop(void)

{

    LCD_Off((void *)BOARD_LCD_BASE);

}

//------------------------------------------------------------------------------

/// Set the backlight of the LCD.

/// \param level   Backlight brightness level [1..32], 32 is maximum level.

//------------------------------------------------------------------------------

void LCDD_SetBacklight (unsigned int level)

{

    unsigned int i;

    const Pin pPins[] = {BOARD_BACKLIGHT_PIN};

    // Enable pins

    PIO_Configure(pPins, PIO_LISTSIZE(pPins));

    // Switch off backlight

    PIO_Clear(pPins);

        vTaskDelay( 2 );

    // Set new backlight level

    for (i = 0; i < level; i++) {

        PIO_Set(pPins);

        PIO_Set(pPins);

        PIO_Set(pPins);

        PIO_Clear(pPins);

        PIO_Clear(pPins);

        PIO_Clear(pPins);

    }

    PIO_Set(pPins);

}