1/* 2 * auxio.h: Definitions and code for the Auxiliary I/O register. 3 * 4 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 5 */ 6#ifndef _SPARC_AUXIO_H 7#define _SPARC_AUXIO_H 8 9#include <asm/vaddrs.h> 10 11/* This register is an unsigned char in IO space. It does two things. 12 * First, it is used to control the front panel LED light on machines 13 * that have it (good for testing entry points to trap handlers and irq's) 14 * Secondly, it controls various floppy drive parameters. 15 */ 16#define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ 17#define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ 18#define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ 19#define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ 20#define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ 21#define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ 22#define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ 23 24/* Set the following to one, then zero, after doing a pseudo DMA transfer. */ 25#define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ 26 27/* Set the following to zero to eject the floppy. */ 28#define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ 29#define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ 30 31#ifndef __ASSEMBLY__ 32 33/* 34 * NOTE: these routines are implementation dependent-- 35 * understand the hardware you are querying! 36 */ 37void set_auxio(unsigned char bits_on, unsigned char bits_off); 38unsigned char get_auxio(void); /* .../asm/floppy.h */ 39 40/* 41 * The following routines are provided for driver-compatibility 42 * with sparc64 (primarily sunlance.c) 43 */ 44 45#define AUXIO_LTE_ON 1 46#define AUXIO_LTE_OFF 0 47 48/* auxio_set_lte - Set Link Test Enable (TPE Link Detect) 49 * 50 * on - AUXIO_LTE_ON or AUXIO_LTE_OFF 51 */ 52#define auxio_set_lte(on) \ 53do { \ 54 if(on) { \ 55 set_auxio(AUXIO_LINK_TEST, 0); \ 56 } else { \ 57 set_auxio(0, AUXIO_LINK_TEST); \ 58 } \ 59} while (0) 60 61#define AUXIO_LED_ON 1 62#define AUXIO_LED_OFF 0 63 64/* auxio_set_led - Set system front panel LED 65 * 66 * on - AUXIO_LED_ON or AUXIO_LED_OFF 67 */ 68#define auxio_set_led(on) \ 69do { \ 70 if(on) { \ 71 set_auxio(AUXIO_LED, 0); \ 72 } else { \ 73 set_auxio(0, AUXIO_LED); \ 74 } \ 75} while (0) 76 77#endif /* !(__ASSEMBLY__) */ 78 79 80/* AUXIO2 (Power Off Control) */ 81extern volatile u8 __iomem *auxio_power_register; 82 83#define AUXIO_POWER_DETECT_FAILURE 32 84#define AUXIO_POWER_CLEAR_FAILURE 2 85#define AUXIO_POWER_OFF 1 86 87 88#endif /* !(_SPARC_AUXIO_H) */ 89