sma_lcd_driver.c

sharp的arm920t 7A400的评估板附带光盘Sharp KEVLH7A400 v0.3b Welcome to the SHARP KEV7A400 Evaluation board

/***********************************************************************
 * $Workfile:   SMA_lcd_driver.c  $
 * $Revision:   1.0  $
 * $Author:   WellsK  $
 * $Date:   Aug 28 2002 13:29:24  $
 *
 * Project: Common LCD driver interface
 *
 * Description:
 *  See the header file for information on this package.
 *
 * Revision History:
 * $Log:   //smaicnt2/pvcs/VM/CHIPS/archives/SOC/Source/Universal Drivers/LCD/SMA_lcd_driver.c-arc  $
 * 
 *    Rev 1.0   Aug 28 2002 13:29:24   WellsK
 * Initial revision.
 * 
 *
 * SHARP MICROELECTRONICS OF THE AMERICAS MAKES NO REPRESENTATION
 * OR WARRANTIES WITH RESPECT TO THE PERFORMANCE OF THIS SOFTWARE,
 * AND SPECIFICALLY DISCLAIMS ANY RESPONSIBILITY FOR ANY DAMAGES, 
 * SPECIAL OR CONSEQUENTIAL, CONNECTED WITH THE USE OF THIS SOFTWARE.
 *
 * SHARP MICROELECTRONICS OF THE AMERICAS PROVIDES THIS SOFTWARE SOLELY 
 * FOR THE PURPOSE OF SOFTWARE DEVELOPMENT INCORPORATING THE USE OF A 
 * SHARP MICROCONTROLLER OR SYSTEM-ON-CHIP PRODUCT. USE OF THIS SOURCE
 * FILE IMPLIES ACCEPTANCE OF THESE CONDITIONS.
 *
 * COPYRIGHT (C) 2002 SHARP MICROELECTRONICS OF THE AMERICAS, INC.
 *     CAMAS, WA
 **********************************************************************/
 
#include "SMA_lcd_driver.h"
#include "LH7A400_lcd_private.h"

//**********************************************************************
// Global data
//**********************************************************************
// Specific panel enumeration (set on call to initialization function)
lcd_configuration_type *panel_data;

/***********************************************************************
 *
 * Function: lcd_initialize
 *
 * Purpose:
 *  Initializes the LCD controller for a specific panel type.
 *
 * Processing:
 *  See function. (Calls an indrect initialization function).
 *
 * Parameters:
 *  panel_sel : Enumeration of panel type fo configure
 *  fb_addr   : Frame buffer address
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  None
 *
 **********************************************************************/
void lcd_initialize (lcd_configuration_type *panel_sel, void *fb_addr)
{
    // Set panel id
    panel_data = panel_sel;

    // Call indirect function
    panel_sel->init (fb_addr);
}

/***********************************************************************
 *
 * Function: lcd_set_backlight_intens
 *
 * Purpose:
 *  Sets the backlight intensity.
 *
 * Processing:
 *  The passed value must be a value between 0 and max_intens. The
 *  value of max_intens may be different for different panel types.
 *  On panel types where max_intens = 1, the value of '1' will simply
 *  turn the backlight on. '0' will always turn the backlight off.
 *
 * Parameters:
 *  intens: Backlight intensity value
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  None
 *
 **********************************************************************/
void lcd_set_backlight_intens (UNS_16 intens)
{
    panel_data->backintens (intens);
}

/***********************************************************************
 *
 * Function:lcd_disable_enablelcd_disable
 *
 * Purpose:
 *  Disable or enable the LCD controller.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  off_on
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  None
 *
 **********************************************************************/
void lcd_disable_enable (UNS_16 off_on)
{
    panel_data->disenab (off_on);
}

/***********************************************************************
 *
 * Function: lcd_set_framebuffer
 *
 * Purpose:
 *  Set or reset the frame buffer location.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  fb_addr : Frame buffer address
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  None
 *
 **********************************************************************/
void lcd_set_framebuffer (void *fb_addr)
{
    panel_data->setfb (fb_addr);
}

/***********************************************************************
 *
 * Function: lcd_set_palette
 *
 * Purpose:
 *  Configure the palette.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  fb_addr : Frame buffer address
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  None
 *
 **********************************************************************/
void lcd_set_palette (UNS_16 *palette)
{
    panel_data->setpal (palette);
}

/***********************************************************************
 *
 * Function: lcd_get_xsize
 *
 * Purpose:
 *  Return the horizontal pixel resolution of the selected display.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  None
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  The horizontal size (in pixels) of the display.
 *
 * Notes:
 *  None
 *
 **********************************************************************/
INT_16 lcd_get_xsize (void)
{
    return panel_data->xsize;
}

/***********************************************************************
 *
 * Function: lcd_get_ysize
 *
 * Purpose:
 *  Return the vertical pixel resolution of the selected display.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  None
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  The vertical size (in pixels) of the display.
 *
 * Notes:
 *  None
 *
 **********************************************************************/
INT_16 lcd_get_ysize (void)
{
    return panel_data->ysize;
}

/***********************************************************************
 *
 * Function: lcd_get_bpp
 *
 * Purpose:
 *  Return the bits per pixel (colors) of the selected display.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  None
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  The color depth (in bits per pixel) of the display.
 *
 * Notes:
 *  None
 *
 **********************************************************************/
INT_16 lcd_get_bpp (void)
{
    return panel_data->bpp;
}

/***********************************************************************
 *
 * Function: lcd_get_max_intens
 *
 * Purpose:
 *  Get maximum backlight intensity.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  None
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  The color depth (in bits per pixel) of the display.
 *
 * Notes:
 *  None
 *
 **********************************************************************/
INT_16 lcd_get_max_intens (void)
{
    return panel_data->max_intens;
}

/***********************************************************************
 *
 * Function: lcd_update_pixel_clock
 *
 * Purpose:
 *  Update pixel clock rate.
 *
 * Processing:
 *  See function.
 *
 * Parameters:
 *  None
 *
 * Outputs:
 *  None
 *
 * Returns:
 *  Nothing
 *
 * Notes:
 *  This function should be called on a clock rate change (bus speed).
 *
 **********************************************************************/
void lcd_update_pixel_clock (void)
{
    panel_data->uppixclk (panel_data->opt_clk);
}