1 /* $NetBSD: ppbus_var.h,v 1.5 2005/12/11 12:23:28 christos Exp $ */ 2 3 #ifndef __PPBUS_VAR_H 4 #define __PPBUS_VAR_H 5 6 /* PPBUS mode masks. */ 7 #define PPBUS_COMPATIBLE 0x01 /* Centronics compatible mode */ 8 #define PPBUS_NIBBLE 0x02 /* reverse 4 bit mode */ 9 #define PPBUS_PS2 0x04 /* PS/2 byte mode */ 10 #define PPBUS_EPP 0x08 /* EPP mode, 32 bit */ 11 #define PPBUS_ECP 0x10 /* ECP mode */ 12 #define PPBUS_FAST 0x20 /* Fast Centronics mode */ 13 /* mode aliases */ 14 #define PPBUS_SPP PPBUS_NIBBLE | PPBUS_PS2 /* Won't work! */ 15 #define PPBUS_BYTE PPBUS_PS2 16 #define PPBUS_MASK 0x3f 17 #define PPBUS_OPTIONS_MASK 0xc0 18 /* Useful macros for this field */ 19 #define PPBUS_IS_EPP(mode) ((mode) & PPBUS_EPP) 20 #define PPBUS_IN_EPP_MODE(bus) (PPBUS_IS_EPP(ppbus_get_mode(bus))) 21 #define PPBUS_IN_NIBBLE_MODE(bus) (ppbus_get_mode(bus) & PPBUS_NIBBLE) 22 #define PPBUS_IN_PS2_MODE(bus) (ppbus_get_mode(bus) & PPBUS_PS2) 23 24 /* PPBUS capabilities */ 25 #define PPBUS_HAS_INTR 0x01 /* Interrupt available */ 26 #define PPBUS_HAS_DMA 0x02 /* DMA available */ 27 #define PPBUS_HAS_FIFO 0x04 /* FIFO available */ 28 #define PPBUS_HAS_PS2 0x08 /* PS2 mode capable */ 29 #define PPBUS_HAS_ECP 0x10 /* ECP mode available */ 30 #define PPBUS_HAS_EPP 0x20 /* EPP mode available */ 31 32 /* IEEE flag in soft config */ 33 #define PPBUS_DISABLE_IEEE 0x00 34 #define PPBUS_ENABLE_IEEE 0x01 35 36 /* List of IVARS available to ppbus device drivers */ 37 /* #define PPBUS_IVAR_MODE 0 */ 38 #define PPBUS_IVAR_DMA 1 39 #define PPBUS_IVAR_INTR 2 40 #define PPBUS_IVAR_EPP_PROTO 3 41 #define PPBUS_IVAR_IEEE 4 42 /* Needed by callback's implemented using callout */ 43 #define PPBUS_IVAR_IRQSTAT 5 44 #define PPBUS_IVAR_DMASTAT 6 45 /* other fields are reserved to the ppbus internals */ 46 47 /* EPP protocol versions */ 48 #define PPBUS_EPP_1_9 0x0 /* default */ 49 #define PPBUS_EPP_1_7 0x1 50 51 /* Parallel Port Bus sleep/wakeup queue. */ 52 #define PPBUSPRI (PZERO+8) 53 54 #endif /* __PPBUS_VAR_H */ 55