1 /* Miscellaneous definitions for VIA chipsets 2 Currently used only by drivers/parport/parport_pc.c */ 3 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 */ 10 11 /* Bits for parallel port mode configuration register */ 12 #define VIA_PARPORT_ECPEPP 0X20 13 #define VIA_PARPORT_BIDIR 0x80 14 15 /* VIA configuration registers */ 16 #define VIA_CONFIG_INDEX 0x3F0 17 #define VIA_CONFIG_DATA 0x3F1 18 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 23