cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

auxio_32.h (2615B)

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