mirror of https://gitee.com/openkylin/linux.git
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
|
/*
|
||
|
|
* auxio.h: Definitions and code for the Auxiliary I/O register.
|
||
|
|
*
|
||
|
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
||
|
|
*/
|
||
|
|
#ifndef _SPARC_AUXIO_H
|
||
|
|
#define _SPARC_AUXIO_H
|
||
|
|
|
||
|
|
#include <asm/vaddrs.h>
|
||
|
|
|
||
|
|
/* 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 */
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
/*
|
||
|
|
* NOTE: these routines are implementation dependent--
|
||
|
|
* understand the hardware you are querying!
|
||
|
|
*/
|
||
|
|
extern void set_auxio(unsigned char bits_on, unsigned char bits_off);
|
||
|
|
extern unsigned char get_auxio(void); /* .../asm/floppy.h */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* The following routines are provided for driver-compatibility
|
||
|
|
* with sparc64 (primarily sunlance.c)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define AUXIO_LTE_ON 1
|
||
|
|
#define AUXIO_LTE_OFF 0
|
||
|
|
|
||
|
|
/* auxio_set_lte - Set Link Test Enable (TPE Link Detect)
|
||
|
|
*
|
||
|
|
* on - AUXIO_LTE_ON or AUXIO_LTE_OFF
|
||
|
|
*/
|
||
|
|
#define auxio_set_lte(on) \
|
||
|
|
do { \
|
||
|
|
if(on) { \
|
||
|
|
set_auxio(AUXIO_LINK_TEST, 0); \
|
||
|
|
} else { \
|
||
|
|
set_auxio(0, AUXIO_LINK_TEST); \
|
||
|
|
} \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#define AUXIO_LED_ON 1
|
||
|
|
#define AUXIO_LED_OFF 0
|
||
|
|
|
||
|
|
/* auxio_set_led - Set system front panel LED
|
||
|
|
*
|
||
|
|
* on - AUXIO_LED_ON or AUXIO_LED_OFF
|
||
|
|
*/
|
||
|
|
#define auxio_set_led(on) \
|
||
|
|
do { \
|
||
|
|
if(on) { \
|
||
|
|
set_auxio(AUXIO_LED, 0); \
|
||
|
|
} else { \
|
||
|
|
set_auxio(0, AUXIO_LED); \
|
||
|
|
} \
|
||
|
|
} while (0)
|
||
|
|
|
||
|
|
#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) */
|