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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 | /* $Id: auxio.h,v 1.3 2001/06/05 08:16:34 davem Exp $ * auxio.h: Definitions and code for the Auxiliary I/O register. * * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) */ #ifndef _SPARC64_AUXIO_H #define _SPARC64_AUXIO_H #include <asm/system.h> #include <asm/io.h> /* FIXME: All of this should be checked for sun4u. It has /sbus/auxio, but I don't know whether it is the same and don't have a floppy */ extern unsigned long auxio_register; /* This register is an unsigned char in IO space. It does two things. * First, it is used to control the front panel LED light on machines * that have it (good for testing entry points to trap handlers and irq's) * Secondly, it controls various floppy drive parameters. */ #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ /* Set the following to zero to eject the floppy. */ #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ #define AUXREG (auxio_register) /* These are available on sun4c */ #define TURN_ON_LED \ do { if (AUXREG) \ sbus_writeb(sbus_readb(AUXREG) | \ (AUXIO_ORMEIN | AUXIO_LED), AUXREG); \ } while(0) #define TURN_OFF_LED \ do { if (AUXREG) \ sbus_writeb((sbus_readb(AUXREG) | \ AUXIO_ORMEIN) & (~AUXIO_LED), \ AUXREG); \ } while(0) #define FLIP_LED \ do { if (AUXREG) \ sbus_writeb((sbus_readb(AUXREG) | \ AUXIO_ORMEIN) ^ AUXIO_LEN, \ AUXREG); \ } while(0) #define FLPY_MOTORON \ do { if (AUXREG) \ sbus_writeb(sbus_readb(AUXREG) | \ (AUXIO_ORMEIN | AUXIO_FLPY_DSEL), \ AUXREG); \ } while(0) #define FLPY_MOTOROFF \ do { if (AUXREG) \ sbus_writeb((sbus_readb(AUXREG) | \ AUXIO_ORMEIN) & (~AUXIO_FLPY_DSEL), \ AUXREG); \ } while(0) #define FLPY_TCNTON \ do { if (AUXREG) \ sbus_writeb((sbus_readb(AUXREG) | \ AUXIO_ORMEIN) | AUXIO_FLPY_TCNT, \ AUXREG); \ } while(0) #define FLPY_TCNTOFF \ do { if (AUXREG) \ sbus_writeb((sbus_readb(AUXREG) | \ AUXIO_ORMEIN) & (~AUXIO_FLPY_TCNT), \ AUXREG); \ } while(0) #ifndef __ASSEMBLY__ extern __inline__ void set_auxio(unsigned char bits_on, unsigned char bits_off) { unsigned char regval; unsigned long flags; save_flags(flags); cli(); if(AUXREG) { unsigned char newval; regval = sbus_readb(AUXREG); newval = regval | bits_on; newval &= ~bits_off; newval |= AUXIO_ORMEIN4M; sbus_writeb(newval, AUXREG); } restore_flags(flags); } #endif /* !(__ASSEMBLY__) */ /* AUXIO2 (Power Off Control) */ extern __volatile__ unsigned char * auxio_power_register; #define AUXIO_POWER_DETECT_FAILURE 32 #define AUXIO_POWER_CLEAR_FAILURE 2 #define AUXIO_POWER_OFF 1 #endif /* !(_SPARC_AUXIO_H) */ |