mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-23 04:34:11 +08:00
23 lines
893 B
C
23 lines
893 B
C
|
/* 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
|