mirror of
https://github.com/edk2-porting/linux-next.git
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1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
23 lines
893 B
C
23 lines
893 B
C
/* Miscellaneous definitions for VIA chipsets
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Currently used only by drivers/parport/parport_pc.c */
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/* Values for SuperIO function select configuration register */
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#define VIA_FUNCTION_PARPORT_SPP 0x00
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#define VIA_FUNCTION_PARPORT_ECP 0x01
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#define VIA_FUNCTION_PARPORT_EPP 0x02
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#define VIA_FUNCTION_PARPORT_DISABLE 0x03
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#define VIA_FUNCTION_PROBE 0xFF /* Special magic value to be used in code, not to be written into chip */
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/* Bits for parallel port mode configuration register */
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#define VIA_PARPORT_ECPEPP 0X20
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#define VIA_PARPORT_BIDIR 0x80
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/* VIA configuration registers */
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#define VIA_CONFIG_INDEX 0x3F0
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#define VIA_CONFIG_DATA 0x3F1
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/* Mask for parallel port IRQ bits (in ISA PnP IRQ routing register 1) */
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#define VIA_IRQCONTROL_PARALLEL 0xF0
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/* Mask for parallel port DMA bits (in ISA PnP DMA routing register) */
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#define VIA_DMACONTROL_PARALLEL 0x0C
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