1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * auxio.h: Definitions and code for the Auxiliary I/O register. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun #ifndef _SPARC_AUXIO_H 8*4882a593Smuzhiyun #define _SPARC_AUXIO_H 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <asm/vaddrs.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* This register is an unsigned char in IO space. It does two things. 13*4882a593Smuzhiyun * First, it is used to control the front panel LED light on machines 14*4882a593Smuzhiyun * that have it (good for testing entry points to trap handlers and irq's) 15*4882a593Smuzhiyun * Secondly, it controls various floppy drive parameters. 16*4882a593Smuzhiyun */ 17*4882a593Smuzhiyun #define AUXIO_ORMEIN 0xf0 /* All writes must set these bits. */ 18*4882a593Smuzhiyun #define AUXIO_ORMEIN4M 0xc0 /* sun4m - All writes must set these bits. */ 19*4882a593Smuzhiyun #define AUXIO_FLPY_DENS 0x20 /* Floppy density, high if set. Read only. */ 20*4882a593Smuzhiyun #define AUXIO_FLPY_DCHG 0x10 /* A disk change occurred. Read only. */ 21*4882a593Smuzhiyun #define AUXIO_EDGE_ON 0x10 /* sun4m - On means Jumper block is in. */ 22*4882a593Smuzhiyun #define AUXIO_FLPY_DSEL 0x08 /* Drive select/start-motor. Write only. */ 23*4882a593Smuzhiyun #define AUXIO_LINK_TEST 0x08 /* sun4m - On means TPE Carrier detect. */ 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun /* Set the following to one, then zero, after doing a pseudo DMA transfer. */ 26*4882a593Smuzhiyun #define AUXIO_FLPY_TCNT 0x04 /* Floppy terminal count. Write only. */ 27*4882a593Smuzhiyun 28*4882a593Smuzhiyun /* Set the following to zero to eject the floppy. */ 29*4882a593Smuzhiyun #define AUXIO_FLPY_EJCT 0x02 /* Eject floppy disk. Write only. */ 30*4882a593Smuzhiyun #define AUXIO_LED 0x01 /* On if set, off if unset. Read/Write */ 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun #ifndef __ASSEMBLY__ 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun /* 35*4882a593Smuzhiyun * NOTE: these routines are implementation dependent-- 36*4882a593Smuzhiyun * understand the hardware you are querying! 37*4882a593Smuzhiyun */ 38*4882a593Smuzhiyun void set_auxio(unsigned char bits_on, unsigned char bits_off); 39*4882a593Smuzhiyun unsigned char get_auxio(void); /* .../asm/floppy.h */ 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun /* 42*4882a593Smuzhiyun * The following routines are provided for driver-compatibility 43*4882a593Smuzhiyun * with sparc64 (primarily sunlance.c) 44*4882a593Smuzhiyun */ 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun #define AUXIO_LTE_ON 1 47*4882a593Smuzhiyun #define AUXIO_LTE_OFF 0 48*4882a593Smuzhiyun 49*4882a593Smuzhiyun /* auxio_set_lte - Set Link Test Enable (TPE Link Detect) 50*4882a593Smuzhiyun * 51*4882a593Smuzhiyun * on - AUXIO_LTE_ON or AUXIO_LTE_OFF 52*4882a593Smuzhiyun */ 53*4882a593Smuzhiyun #define auxio_set_lte(on) \ 54*4882a593Smuzhiyun do { \ 55*4882a593Smuzhiyun if(on) { \ 56*4882a593Smuzhiyun set_auxio(AUXIO_LINK_TEST, 0); \ 57*4882a593Smuzhiyun } else { \ 58*4882a593Smuzhiyun set_auxio(0, AUXIO_LINK_TEST); \ 59*4882a593Smuzhiyun } \ 60*4882a593Smuzhiyun } while (0) 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun #define AUXIO_LED_ON 1 63*4882a593Smuzhiyun #define AUXIO_LED_OFF 0 64*4882a593Smuzhiyun 65*4882a593Smuzhiyun /* auxio_set_led - Set system front panel LED 66*4882a593Smuzhiyun * 67*4882a593Smuzhiyun * on - AUXIO_LED_ON or AUXIO_LED_OFF 68*4882a593Smuzhiyun */ 69*4882a593Smuzhiyun #define auxio_set_led(on) \ 70*4882a593Smuzhiyun do { \ 71*4882a593Smuzhiyun if(on) { \ 72*4882a593Smuzhiyun set_auxio(AUXIO_LED, 0); \ 73*4882a593Smuzhiyun } else { \ 74*4882a593Smuzhiyun set_auxio(0, AUXIO_LED); \ 75*4882a593Smuzhiyun } \ 76*4882a593Smuzhiyun } while (0) 77*4882a593Smuzhiyun 78*4882a593Smuzhiyun #endif /* !(__ASSEMBLY__) */ 79*4882a593Smuzhiyun 80*4882a593Smuzhiyun 81*4882a593Smuzhiyun /* AUXIO2 (Power Off Control) */ 82*4882a593Smuzhiyun extern volatile u8 __iomem *auxio_power_register; 83*4882a593Smuzhiyun 84*4882a593Smuzhiyun #define AUXIO_POWER_DETECT_FAILURE 32 85*4882a593Smuzhiyun #define AUXIO_POWER_CLEAR_FAILURE 2 86*4882a593Smuzhiyun #define AUXIO_POWER_OFF 1 87*4882a593Smuzhiyun 88*4882a593Smuzhiyun 89*4882a593Smuzhiyun #endif /* !(_SPARC_AUXIO_H) */ 90