firmware/target/arm/rk27xx/lcd-hifiman.c

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
   4  *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
   5  *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
   6  *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C)  2011 Andrew Ryabinin
  11  *
  12  *
  13  * This program is free software; you can redistribute it and/or
  14  * modify it under the terms of the GNU General Public License
  15  * as published by the Free Software Foundation; either version 2
  16  * of the License, or (at your option) any later version.
  17  *
  18  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  19  * KIND, either express or implied.
  20  *
  21  ****************************************************************************/
  22
  23 #include "config.h"
  24 #include "kernel.h"
  25 #include "lcd.h"
  26 #include "system.h"
  27 #include "cpu.h"
  28 #include "lcdif-rk27xx.h"
  29
  30 static bool display_on = false;
  31
  32 void lcd_display_init()
  33 {
  34     unsigned int x, y;
  35
  36     /* Driving ability setting */
  37     lcd_write_reg(0x60, 0x00);
  38     lcd_write_reg(0x61, 0x06);
  39     lcd_write_reg(0x62, 0x00);
  40     lcd_write_reg(0x63, 0xC8);
  41
  42     /* Gamma 2.2 Setting */
  43     lcd_write_reg(0x40, 0x00);
  44     lcd_write_reg(0x41, 0x40);
  45     lcd_write_reg(0x42, 0x45);
  46     lcd_write_reg(0x43, 0x01);
  47     lcd_write_reg(0x44, 0x60);
  48     lcd_write_reg(0x45, 0x05);
  49     lcd_write_reg(0x46, 0x0C);
  50     lcd_write_reg(0x47, 0xD1);
  51     lcd_write_reg(0x48, 0x05);
  52
  53     lcd_write_reg(0x50, 0x75);
  54     lcd_write_reg(0x51, 0x01);
  55     lcd_write_reg(0x52, 0x67);
  56     lcd_write_reg(0x53, 0x14);
  57     lcd_write_reg(0x54, 0xF2);
  58     lcd_write_reg(0x55, 0x07);
  59     lcd_write_reg(0x56, 0x03);
  60     lcd_write_reg(0x57, 0x49);
  61
  62     /* Power voltage setting */
  63     lcd_write_reg(0x1F, 0x03);
  64     lcd_write_reg(0x20, 0x00);
  65     lcd_write_reg(0x24, 0x28);
  66     lcd_write_reg(0x25, 0x45);
  67
  68     lcd_write_reg(0x23, 0x2F);
  69
  70     /* Power on setting */
  71     lcd_write_reg(0x18, 0x44);
  72     lcd_write_reg(0x21, 0x01);
  73     lcd_write_reg(0x01, 0x00);
  74     lcd_write_reg(0x1C, 0x03);
  75     lcd_write_reg(0x19, 0x06);
  76     udelay(5);
  77
  78     /* Display on setting */
  79     lcd_write_reg(0x26, 0x84);
  80     udelay(40);
  81     lcd_write_reg(0x26, 0xB8);
  82     udelay(40);
  83     lcd_write_reg(0x26, 0xBC);
  84     udelay(40);
  85
  86     /* Memmory access setting */
  87     lcd_write_reg(0x16, 0x48);
  88     /* Setup 16bit mode */
  89     lcd_write_reg(0x17, 0x05);
  90
  91     /* Set GRAM area */
  92     lcd_write_reg(0x02, 0x00);
  93     lcd_write_reg(0x03, 0x00);
  94     lcd_write_reg(0x04, 0x00);
  95     lcd_write_reg(0x05, LCD_HEIGHT - 1);
  96     lcd_write_reg(0x06, 0x00);
  97     lcd_write_reg(0x07, 0x00);
  98     lcd_write_reg(0x08, 0x00);
  99     lcd_write_reg(0x09, LCD_WIDTH - 1);
 100
 101     /* Start GRAM write */
 102     lcd_cmd(0x22);
 103
 104     for (x=0; x<LCD_WIDTH; x++)
 105         for(y=0; y<LCD_HEIGHT; y++)
 106             lcd_data(0x00);
 107
 108     display_on = true;
 109 }
 110
 111 void lcd_enable (bool on)
 112 {
 113     if (on)
 114     {
 115         lcd_write_reg(0x18, 0x44);
 116         lcd_write_reg(0x21, 0x01);
 117         lcd_write_reg(0x01, 0x00);
 118         lcd_write_reg(0x1C, 0x03);
 119         lcd_write_reg(0x19, 0x06);
 120         udelay(5);
 121         lcd_write_reg(0x26, 0x84);
 122         udelay(40);
 123         lcd_write_reg(0x26, 0xB8);
 124         udelay(40);
 125         lcd_write_reg(0x26, 0xBC);
 126     }
 127     else
 128     {
 129         lcd_write_reg(0x26, 0xB8);
 130         udelay(40);
 131         lcd_write_reg(0x19, 0x01);
 132         udelay(40);
 133         lcd_write_reg(0x26, 0xA4);
 134         udelay(40);
 135         lcd_write_reg(0x26, 0x84);
 136         udelay(40);
 137         lcd_write_reg(0x1C, 0x00);
 138         lcd_write_reg(0x01, 0x02);
 139         lcd_write_reg(0x21, 0x00);
 140     }
 141     display_on = on;
 142
 143 }
 144
 145 bool lcd_active()
 146 {
 147     return display_on;
 148 }
 149
 150
 151 void lcd_update_rect(int x, int y, int width, int height)
 152 {
 153     int px = x, py = y;
 154     int pxmax = x + width, pymax = y + height;
 155
 156     lcd_write_reg(0x03, y);
 157     lcd_write_reg(0x05, pymax-1);
 158     lcd_write_reg(0x07, x);
 159     lcd_write_reg(0x09, pxmax-1);
 160
 161     lcd_cmd(0x22);
 162
 163     for (px=x; px<pxmax; px++)
 164         for (py=y; py<pymax; py++)
 165             lcd_data(lcd_framebuffer[py][px]);
 166 }
 167
 168 /* Blit a YUV bitmap directly to the LCD */
 169 void lcd_blit_yuv(unsigned char * const src[3],
 170                   int src_x, int src_y, int stride,
 171                   int x, int y, int width, int height)
 172 {
 173     (void)src;
 174     (void)src_x;
 175     (void)src_y;
 176     (void)stride;
 177     (void)x;
 178     (void)y;
 179     (void)width;
 180     (void)height;
 181 }