via.h 893 B

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