/* $Id: auxio.h,v 1.1 2005-12-20 11:32:11 jcastillo Exp $
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/* $Id: auxio.h,v 1.1 2005-12-20 11:32:11 jcastillo Exp $
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* auxio.h: Definitions and code for the Auxiliary I/O register.
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* auxio.h: Definitions and code for the Auxiliary I/O register.
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*
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*
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* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
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*/
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*/
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#ifndef _SPARC_AUXIO_H
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#ifndef _SPARC_AUXIO_H
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#define _SPARC_AUXIO_H
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#define _SPARC_AUXIO_H
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#include <asm/system.h>
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#include <asm/system.h>
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#include <asm/vaddrs.h>
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#include <asm/vaddrs.h>
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extern unsigned char *auxio_register;
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extern unsigned char *auxio_register;
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/* This register is an unsigned char in IO space. It does two things.
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/* This register is an unsigned char in IO space. It does two things.
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* First, it is used to control the front panel LED light on machines
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* First, it is used to control the front panel LED light on machines
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* that have it (good for testing entry points to trap handlers and irq's)
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* that have it (good for testing entry points to trap handlers and irq's)
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* Secondly, it controls various floppy drive parameters.
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* Secondly, it controls various floppy drive parameters.
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*/
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*/
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#define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */
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#define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */
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#define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */
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#define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */
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#define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */
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#define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */
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#define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */
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#define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */
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#define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */
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#define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */
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#define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */
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#define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */
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/* Set the following to one, then zero, after doing a pseudo DMA transfer. */
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/* Set the following to one, then zero, after doing a pseudo DMA transfer. */
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#define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */
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#define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */
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/* Set the following to zero to eject the floppy. */
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/* Set the following to zero to eject the floppy. */
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#define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */
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#define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */
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#define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */
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#define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */
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#define AUXREG ((volatile unsigned char *)(auxio_register))
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#define AUXREG ((volatile unsigned char *)(auxio_register))
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#define TURN_ON_LED *AUXREG = (*AUXREG | AUXIO_ORMEIN | AUXIO_LED)
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#define TURN_ON_LED *AUXREG = (*AUXREG | AUXIO_ORMEIN | AUXIO_LED)
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#define TURN_OFF_LED *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_LED))
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#define TURN_OFF_LED *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_LED))
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#define FLIP_LED *AUXREG = ((*AUXREG | AUXIO_ORMEIN) ^ AUXIO_LED)
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#define FLIP_LED *AUXREG = ((*AUXREG | AUXIO_ORMEIN) ^ AUXIO_LED)
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#define FLPY_MOTORON *AUXREG = ((*AUXREG | AUXIO_ORMEIN) | AUXIO_FLPY_DSEL)
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#define FLPY_MOTORON *AUXREG = ((*AUXREG | AUXIO_ORMEIN) | AUXIO_FLPY_DSEL)
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#define FLPY_MOTOROFF *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_FLPY_DSEL))
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#define FLPY_MOTOROFF *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_FLPY_DSEL))
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#define FLPY_TCNTON *AUXREG = ((*AUXREG | AUXIO_ORMEIN) | AUXIO_FLPY_TCNT)
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#define FLPY_TCNTON *AUXREG = ((*AUXREG | AUXIO_ORMEIN) | AUXIO_FLPY_TCNT)
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#define FLPY_TCNTOFF *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_FLPY_TCNT))
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#define FLPY_TCNTOFF *AUXREG = ((*AUXREG | AUXIO_ORMEIN) & (~AUXIO_FLPY_TCNT))
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#ifndef __ASSEMBLY__
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#ifndef __ASSEMBLY__
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extern inline void set_auxio(unsigned char bits_on, unsigned char bits_off)
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extern inline void set_auxio(unsigned char bits_on, unsigned char bits_off)
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{
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{
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unsigned char regval;
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unsigned char regval;
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unsigned long flags;
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unsigned long flags;
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save_flags(flags); cli();
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save_flags(flags); cli();
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switch(sparc_cpu_model) {
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switch(sparc_cpu_model) {
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case sun4c:
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case sun4c:
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regval = *AUXREG;
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regval = *AUXREG;
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*AUXREG = ((regval | bits_on) & ~bits_off) | AUXIO_ORMEIN;
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*AUXREG = ((regval | bits_on) & ~bits_off) | AUXIO_ORMEIN;
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break;
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break;
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case sun4m:
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case sun4m:
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regval = *AUXREG;
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regval = *AUXREG;
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*AUXREG = ((regval | bits_on) & ~bits_off) | AUXIO_ORMEIN4M;
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*AUXREG = ((regval | bits_on) & ~bits_off) | AUXIO_ORMEIN4M;
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break;
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break;
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default:
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default:
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panic("Can't set AUXIO register on this machine.");
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panic("Can't set AUXIO register on this machine.");
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};
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};
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restore_flags(flags);
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restore_flags(flags);
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}
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}
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#endif /* !(__ASSEMBLY__) */
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#endif /* !(__ASSEMBLY__) */
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#endif /* !(_SPARC_AUXIO_H) */
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#endif /* !(_SPARC_AUXIO_H) */
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