elks-enhanced
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Owner: themaster
Branch: master
Commits: 6893
Updated: 2026-04-19 00:15
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elks-enhanced
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elks
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include
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arch
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ports.h
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/* * ELKS I/O port and IRQ mappings * * PC IRQ default mappings (* = possible conflicting uses) * * IRQ ELKS Device Config Option Status * 0 Timer Required * 1 Keyboard CONFIG_CONSOLE_DIRECT Optional * 2* Cascade -> 9 on AT Optional on XT, not available on AT * 2* WD 80x3 (/dev/wd0) CONFIG_ETH_WD Optional on XT, not available on AT * 3 Com2 (/dev/ttyS1) CONFIG_CHAR_DEV_RS Optional * 4 Com1 (/dev/ttyS0) CONFIG_CHAR_DEV_RS Optional * 5* Com3 (/dev/ttyS2) CONFIG_CHAR_DEV_RS Optional * 5* HW IDE hard drive CONFIG_BLK_DEV_HD Non-working directhd.c * 6 HW floppy drive CONFIG_BLK_DEV_FD Optional * 7 Unused (LPT, Com4) * 8 Unused (RTC) * 9* 3C509/EL3 (/dev/3c0) CONFIG_ETH_EL3 Optional * 10* WD 80x3 (/dev/wd0) CONFIG_ETH_WD Optional * 11* 3C509/EL3 (/dev/3c0) CONFIG_ETH_EL3 Optional * 12* NE2K (/dev/ne0) CONFIG_ETH_NE2K Optional * 12* Unused (Mouse) No driver * 13 Unused (Math coproc) No driver * 14 AT HD IDE (/dev/hda) CONFIG_BLK_DEV_HD Non-working hd.c * 15 AT HD IDE (/dev/hdb) CONFIG_BLK_DEV_HD Non-working hd.c * * Edit settings below to change port address or IRQ: * Change I/O port and driver IRQ number to match your hardware */ #ifdef CONFIG_ARCH_IBMPC /* timer, timer-8254.c*/ #define TIMER_CMDS_PORT 0x43 /* command port */ #define TIMER_DATA_PORT 0x40 /* data port */ #define TIMER_IRQ 0 /* can't change*/ /* bell, bell-8254.c*/ #define TIMER2_PORT 0x42 /* timer 2 data port for speaker frequency*/ #define SPEAKER_PORT 0x61 /* 8259 interrupt controller, irq-8259.c*/ #define PIC1_CMD 0x20 /* master */ #define PIC1_DATA 0x21 #define PIC2_CMD 0xA0 /* slave */ #define PIC2_DATA 0xA1 #define COM1_PORT 0x3f8 #define COM1_IRQ 4 /* unregistered unless COM1_PORT found*/ #define COM2_PORT 0x2f8 #define COM2_IRQ 3 /* unregistered unless COM2_PORT found*/ #define COM3_PORT 0x3e8 #define COM3_IRQ 5 /* unregistered unless COM3_PORT found*/ #define COM4_PORT 0x2e8 #define COM4_IRQ 7 /* unregistered unless COM4_PORT found*/ #endif #ifdef CONFIG_ARCH_PC98 /* timer, timer-8254.c*/ #define TIMER_CMDS_PORT 0x77 /* command port */ #define TIMER_DATA_PORT 0x71 /* data port */ #define TIMER_IRQ 0 /* can't change*/ /* bell*/ #define TIMER1_PORT 0x3FDB /* timer 1 data port for speaker frequency*/ #define PORTC_CONTROL 0x37 /* 8255A Port C control*/ /* serial, serial-pc98.c*/ #define TIMER2_PORT 0x75 /* timer 2 data port for serial port*/ /* 8259 interrupt controller, irq-8259.c*/ #define PIC1_CMD 0x00 /* master */ #define PIC1_DATA 0x02 #define PIC2_CMD 0x08 /* slave */ #define PIC2_DATA 0x0A #define COM1_PORT 0x30 #define COM1_IRQ 4 /* unregistered unless COM1_PORT found*/ #endif #ifdef CONFIG_ARCH_8018X #define TIMER_IRQ 0 /* logical IRQ number, NOT related to the actual IRQ vector! */ #endif #ifdef CONFIG_ARCH_NECV25 #define TIMER_IRQ 0 /* logical IRQ number, NOT related to the actual IRQ vector! */ #endif #ifdef CONFIG_ARCH_SWAN #define TIMER_IRQ 15 #define COM1_IRQ 11 #endif #ifdef CONFIG_ARCH_SOLO86 #define TIMER_CMDS_PORT 0x06 /* command port */ #define TIMER_DATA_PORT 0x00 /* data port */ #define TIMER_ENBL_PORT 0x01 /* enable port */ #define TIMER_IRQ 0 #define TIMER2_DATA_PORT 0x04 #define TIMER2_ENBL_PORT 0x05 #define INT_CMDS_PORT 0x18 #define INT_DATA_PORT 0x1A #define COM0_CMDS_PORT 0x20 #define COM0_DATA_PORT 0x22 #endif /* keyboard, kbd-scancode.c*/ #define KBD_IO 0x60 #define KBD_CTL 0x61 #define KBD_IRQ 1 /* Ethernet card settings may be overridden in /bootopts using netirq= and netport= */ /* ne2k, ne2k.c */ #ifdef CONFIG_ARCH_NECV25 #define NE2K_PORT 0x200 #define NE2K_IRQ 2 #define NE2K_FLAGS 0x80 #else #define NE2K_PORT 0x300 #define NE2K_IRQ 12 #define NE2K_FLAGS 0x80 #endif /* wd, wd.c*/ #define WD_PORT 0x240 #define WD_IRQ 2 #define WD_RAM 0xCE00 #define WD_FLAGS 0x80 /* el3/3C509, el3.c */ #define EL3_PORT 0x330 #define EL3_IRQ 11 #define EL3_FLAGS 0x80 /* bioshd.c*/ #define FDC_DOR 0x3F2 /* floppy digital output register*/ /* obsolete - experimental IDE hard drive, directhd.c (broken)*/ #define HD1_PORT 0x1f0 #define HD2_PORT 0x170 #define HD_IRQ 5 /* missing request_irq call*/ #define HD1_AT_IRQ 14 /* missing request_irq call*/ #define HD2_AT_IRQ 15 /* missing request_irq call*/ /* direct floppy driver, directfd.c */ #define FLOPPY_IRQ 6
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