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git.proxmox.com Git - mirror_ubuntu-eoan-kernel.git/blob - include/linux/via.h
1 /* Miscellaneous definitions for VIA chipsets
2 Currently used only by drivers/parport/parport_pc.c */
4 /* Values for SuperIO function select configuration register */
5 #define VIA_FUNCTION_PARPORT_SPP 0x00
6 #define VIA_FUNCTION_PARPORT_ECP 0x01
7 #define VIA_FUNCTION_PARPORT_EPP 0x02
8 #define VIA_FUNCTION_PARPORT_DISABLE 0x03
9 #define VIA_FUNCTION_PROBE 0xFF /* Special magic value to be used in code, not to be written into chip */
11 /* Bits for parallel port mode configuration register */
12 #define VIA_PARPORT_ECPEPP 0X20
13 #define VIA_PARPORT_BIDIR 0x80
15 /* VIA configuration registers */
16 #define VIA_CONFIG_INDEX 0x3F0
17 #define VIA_CONFIG_DATA 0x3F1
19 /* Mask for parallel port IRQ bits (in ISA PnP IRQ routing register 1) */
20 #define VIA_IRQCONTROL_PARALLEL 0xF0
21 /* Mask for parallel port DMA bits (in ISA PnP DMA routing register) */
22 #define VIA_DMACONTROL_PARALLEL 0x0C