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/* SPDX-License-Identifier: GPL-2.0 / / * 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! / void set_auxio(unsigned char bits_on, unsigned char bits_off); 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 u8 __iomem auxio_power_register; #define AUXIO_POWER_DETECT_FAILURE 32 #define AUXIO_POWER_CLEAR_FAILURE 2 #define AUXIO_POWER_OFF 1 #endif /* !(_SPARC_AUXIO_H) */

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