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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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C
123456789101112131415161718192021222324/* SPDX-License-Identifier: GPL-2.0 *//* Miscellaneous definitions for VIA chipsets Currently used only by drivers/parport/parport_pc.c */
/* Values for SuperIO function select configuration register */#define VIA_FUNCTION_PARPORT_SPP 0x00#define VIA_FUNCTION_PARPORT_ECP 0x01#define VIA_FUNCTION_PARPORT_EPP 0x02#define VIA_FUNCTION_PARPORT_DISABLE 0x03#define VIA_FUNCTION_PROBE 0xFF /* Special magic value to be used in code, not to be written into chip */
/* Bits for parallel port mode configuration register */#define VIA_PARPORT_ECPEPP 0X20#define VIA_PARPORT_BIDIR 0x80
/* VIA configuration registers */#define VIA_CONFIG_INDEX 0x3F0#define VIA_CONFIG_DATA 0x3F1
/* Mask for parallel port IRQ bits (in ISA PnP IRQ routing register 1) */#define VIA_IRQCONTROL_PARALLEL 0xF0/* Mask for parallel port DMA bits (in ISA PnP DMA routing register) */#define VIA_DMACONTROL_PARALLEL 0x0C