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-rw-r--r--include/linux/via.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/via.h b/include/linux/via.h
new file mode 100644
index 000000000..86ae3bcdb
--- /dev/null
+++ b/include/linux/via.h
@@ -0,0 +1,22 @@
+/* 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