drivers/char/lcd.h

   1 /*
   2  * LED, LCD and Button panel driver for Cobalt
   3  *
   4  * This file is subject to the terms and conditions of the GNU General Public
   5  * License.  See the file "COPYING" in the main directory of this archive
   6  * for more details.
   7  *
   8  * Copyright (C) 1996, 1997 by Andrew Bose
   9  *
  10  * Linux kernel version history:
  11  *       March 2001: Ported from 2.0.34  by Liam Davies
  12  *
  13  */
  14
  15 // function headers
  16
  17 static int dqpoll(volatile unsigned long, volatile unsigned char );
  18 static int timeout(volatile unsigned long);
  19
  20 #define LCD_CHARS_PER_LINE 40
  21 #define FLASH_SIZE 524288
  22 #define MAX_IDLE_TIME 120
  23
  24 struct lcd_display {
  25         unsigned buttons;
  26         int size1;
  27         int size2;
  28         unsigned char line1[LCD_CHARS_PER_LINE];
  29         unsigned char line2[LCD_CHARS_PER_LINE];
  30         unsigned char cursor_address;
  31         unsigned char character;
  32         unsigned char leds;
  33         unsigned char *RomImage;
  34 };
  35
  36
  37
  38 #define LCD_DRIVER      "Cobalt LCD Driver v2.10"
  39
  40 #define LCD             "lcd: "
  41
  42 #define kLCD_IR         0x0F000000
  43 #define kLCD_DR         0x0F000010
  44 #define kGPI            0x0D000000
  45 #define kLED            0x0C000000
  46
  47 #define kDD_R00         0x00
  48 #define kDD_R01         0x27
  49 #define kDD_R10         0x40
  50 #define kDD_R11         0x67
  51
  52 #define kLCD_Addr       0x00000080
  53
  54 #define LCDTimeoutValue 0xfff
  55
  56
  57 // Flash definitions AMD 29F040
  58 #define kFlashBase      0x0FC00000
  59
  60 #define kFlash_Addr1    0x5555
  61 #define kFlash_Addr2    0x2AAA
  62 #define kFlash_Data1    0xAA
  63 #define kFlash_Data2    0x55
  64 #define kFlash_Prog     0xA0
  65 #define kFlash_Erase3   0x80
  66 #define kFlash_Erase6   0x10
  67 #define kFlash_Read     0xF0
  68
  69 #define kFlash_ID       0x90
  70 #define kFlash_VenAddr  0x00
  71 #define kFlash_DevAddr  0x01
  72 #define kFlash_VenID    0x01
  73 #define kFlash_DevID    0xA4    // 29F040
  74 //#define kFlash_DevID  0xAD    // 29F016
  75
  76
  77 // Macros
  78
  79 #define LCDWriteData(x) outl((x << 24), kLCD_DR)
  80 #define LCDWriteInst(x) outl((x << 24), kLCD_IR)
  81
  82 #define LCDReadData     (inl(kLCD_DR) >> 24)
  83 #define LCDReadInst     (inl(kLCD_IR) >> 24)
  84
  85 #define GPIRead         (inl(kGPI) >> 24)
  86
  87 #define LEDSet(x)       outb((char)x, kLED)
  88
  89 #define WRITE_GAL(x,y)  outl(y, 0x04000000 | (x))
  90 #define BusyCheck()     while ((LCDReadInst & 0x80) == 0x80)
  91
  92 #define WRITE_FLASH(x,y) outb((char)y, kFlashBase | (x))
  93 #define READ_FLASH(x)   (inb(kFlashBase | (x)))
  94
  95
  96
  97 /*
  98  * Function command codes for io_ctl.
  99  */
 100 #define LCD_On                  1
 101 #define LCD_Off                 2
 102 #define LCD_Clear               3
 103 #define LCD_Reset               4
 104 #define LCD_Cursor_Left         5
 105 #define LCD_Cursor_Right        6
 106 #define LCD_Disp_Left           7
 107 #define LCD_Disp_Right          8
 108 #define LCD_Get_Cursor          9
 109 #define LCD_Set_Cursor          10
 110 #define LCD_Home                11
 111 #define LCD_Read                12
 112 #define LCD_Write               13
 113 #define LCD_Cursor_Off          14
 114 #define LCD_Cursor_On           15
 115 #define LCD_Get_Cursor_Pos      16
 116 #define LCD_Set_Cursor_Pos      17
 117 #define LCD_Blink_Off           18
 118
 119 #define LED_Set                 40
 120 #define LED_Bit_Set             41
 121 #define LED_Bit_Clear           42
 122
 123
 124 //  Button defs
 125 #define BUTTON_Read             50
 126
 127 //  Flash command codes
 128 #define FLASH_Erase             60
 129 #define FLASH_Burn              61
 130 #define FLASH_Read              62
 131
 132
 133 // Ethernet LINK check hackaroo
 134 #define LINK_Check              90
 135 #define LINK_Check_2            91
 136
 137 //  Button patterns  _B - single layer lcd boards
 138
 139 #define BUTTON_NONE               0x3F
 140 #define BUTTON_NONE_B             0xFE
 141
 142 #define BUTTON_Left               0x3B
 143 #define BUTTON_Left_B             0xFA
 144
 145 #define BUTTON_Right              0x37
 146 #define BUTTON_Right_B            0xDE
 147
 148 #define BUTTON_Up                 0x2F
 149 #define BUTTON_Up_B               0xF6
 150
 151 #define BUTTON_Down               0x1F
 152 #define BUTTON_Down_B             0xEE
 153
 154 #define BUTTON_Next               0x3D
 155 #define BUTTON_Next_B             0x7E
 156
 157 #define BUTTON_Enter              0x3E
 158 #define BUTTON_Enter_B            0xBE
 159
 160 #define BUTTON_Reset_B            0xFC
 161
 162
 163 // debounce constants
 164
 165 #define BUTTON_SENSE            160000
 166 #define BUTTON_DEBOUNCE         5000
 167
 168
 169 //  Galileo register stuff
 170
 171 #define kGal_DevBank2Cfg        0x1466DB33
 172 #define kGal_DevBank2PReg       0x464
 173 #define kGal_DevBank3Cfg        0x146FDFFB
 174 #define kGal_DevBank3PReg       0x468
 175
 176 // Network
 177
 178 #define kIPADDR                 1
 179 #define kNETMASK                2
 180 #define kGATEWAY                3
 181 #define kDNS                    4
 182
 183 #define kClassA                 5
 184 #define kClassB                 6
 185 #define kClassC                 7
 186