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https://github.com/edk2-porting/linux-next.git
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187 lines
4.0 KiB
C
187 lines
4.0 KiB
C
/*
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* LED, LCD and Button panel driver for Cobalt
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1996, 1997 by Andrew Bose
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*
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* Linux kernel version history:
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* March 2001: Ported from 2.0.34 by Liam Davies
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*
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*/
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// function headers
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static int dqpoll(volatile unsigned long, volatile unsigned char );
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static int timeout(volatile unsigned long);
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#define LCD_CHARS_PER_LINE 40
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#define FLASH_SIZE 524288
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#define MAX_IDLE_TIME 120
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struct lcd_display {
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unsigned buttons;
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int size1;
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int size2;
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unsigned char line1[LCD_CHARS_PER_LINE];
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unsigned char line2[LCD_CHARS_PER_LINE];
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unsigned char cursor_address;
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unsigned char character;
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unsigned char leds;
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unsigned char *RomImage;
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};
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#define LCD_DRIVER "Cobalt LCD Driver v2.10"
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#define LCD "lcd: "
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#define kLCD_IR 0x0F000000
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#define kLCD_DR 0x0F000010
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#define kGPI 0x0D000000
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#define kLED 0x0C000000
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#define kDD_R00 0x00
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#define kDD_R01 0x27
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#define kDD_R10 0x40
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#define kDD_R11 0x67
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#define kLCD_Addr 0x00000080
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#define LCDTimeoutValue 0xfff
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// Flash definitions AMD 29F040
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#define kFlashBase 0x0FC00000
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#define kFlash_Addr1 0x5555
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#define kFlash_Addr2 0x2AAA
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#define kFlash_Data1 0xAA
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#define kFlash_Data2 0x55
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#define kFlash_Prog 0xA0
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#define kFlash_Erase3 0x80
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#define kFlash_Erase6 0x10
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#define kFlash_Read 0xF0
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#define kFlash_ID 0x90
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#define kFlash_VenAddr 0x00
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#define kFlash_DevAddr 0x01
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#define kFlash_VenID 0x01
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#define kFlash_DevID 0xA4 // 29F040
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//#define kFlash_DevID 0xAD // 29F016
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// Macros
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#define LCDWriteData(x) outl((x << 24), kLCD_DR)
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#define LCDWriteInst(x) outl((x << 24), kLCD_IR)
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#define LCDReadData (inl(kLCD_DR) >> 24)
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#define LCDReadInst (inl(kLCD_IR) >> 24)
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#define GPIRead (inl(kGPI) >> 24)
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#define LEDSet(x) outb((char)x, kLED)
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#define WRITE_GAL(x,y) outl(y, 0x04000000 | (x))
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#define BusyCheck() while ((LCDReadInst & 0x80) == 0x80)
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#define WRITE_FLASH(x,y) outb((char)y, kFlashBase | (x))
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#define READ_FLASH(x) (inb(kFlashBase | (x)))
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/*
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* Function command codes for io_ctl.
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*/
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#define LCD_On 1
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#define LCD_Off 2
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#define LCD_Clear 3
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#define LCD_Reset 4
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#define LCD_Cursor_Left 5
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#define LCD_Cursor_Right 6
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#define LCD_Disp_Left 7
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#define LCD_Disp_Right 8
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#define LCD_Get_Cursor 9
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#define LCD_Set_Cursor 10
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#define LCD_Home 11
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#define LCD_Read 12
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#define LCD_Write 13
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#define LCD_Cursor_Off 14
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#define LCD_Cursor_On 15
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#define LCD_Get_Cursor_Pos 16
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#define LCD_Set_Cursor_Pos 17
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#define LCD_Blink_Off 18
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#define LED_Set 40
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#define LED_Bit_Set 41
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#define LED_Bit_Clear 42
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// Button defs
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#define BUTTON_Read 50
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// Flash command codes
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#define FLASH_Erase 60
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#define FLASH_Burn 61
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#define FLASH_Read 62
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// Ethernet LINK check hackaroo
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#define LINK_Check 90
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#define LINK_Check_2 91
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// Button patterns _B - single layer lcd boards
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#define BUTTON_NONE 0x3F
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#define BUTTON_NONE_B 0xFE
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#define BUTTON_Left 0x3B
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#define BUTTON_Left_B 0xFA
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#define BUTTON_Right 0x37
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#define BUTTON_Right_B 0xDE
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#define BUTTON_Up 0x2F
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#define BUTTON_Up_B 0xF6
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#define BUTTON_Down 0x1F
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#define BUTTON_Down_B 0xEE
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#define BUTTON_Next 0x3D
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#define BUTTON_Next_B 0x7E
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#define BUTTON_Enter 0x3E
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#define BUTTON_Enter_B 0xBE
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#define BUTTON_Reset_B 0xFC
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// debounce constants
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#define BUTTON_SENSE 160000
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#define BUTTON_DEBOUNCE 5000
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// Galileo register stuff
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#define kGal_DevBank2Cfg 0x1466DB33
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#define kGal_DevBank2PReg 0x464
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#define kGal_DevBank3Cfg 0x146FDFFB
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#define kGal_DevBank3PReg 0x468
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// Network
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#define kIPADDR 1
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#define kNETMASK 2
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#define kGATEWAY 3
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#define kDNS 4
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#define kClassA 5
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#define kClassB 6
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#define kClassC 7
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