cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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comedi_8255.h (1197B)

      1/* SPDX-License-Identifier: GPL-2.0+ */
      2/*
      3 * comedi_8255.h
      4 * Generic 8255 digital I/O subdevice support
      5 *
      6 * COMEDI - Linux Control and Measurement Device Interface
      7 * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
      8 */
      9
     10#ifndef _COMEDI_8255_H
     11#define _COMEDI_8255_H
     12
     13#define I8255_SIZE		0x04
     14
     15#define I8255_DATA_A_REG	0x00
     16#define I8255_DATA_B_REG	0x01
     17#define I8255_DATA_C_REG	0x02
     18#define I8255_CTRL_REG		0x03
     19#define I8255_CTRL_C_LO_IO	BIT(0)
     20#define I8255_CTRL_B_IO		BIT(1)
     21#define I8255_CTRL_B_MODE	BIT(2)
     22#define I8255_CTRL_C_HI_IO	BIT(3)
     23#define I8255_CTRL_A_IO		BIT(4)
     24#define I8255_CTRL_A_MODE(x)	((x) << 5)
     25#define I8255_CTRL_CW		BIT(7)
     26
     27struct comedi_device;
     28struct comedi_subdevice;
     29
     30int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s,
     31		     int (*io)(struct comedi_device *dev, int dir, int port,
     32			       int data, unsigned long regbase),
     33		     unsigned long regbase);
     34
     35int subdev_8255_mm_init(struct comedi_device *dev, struct comedi_subdevice *s,
     36			int (*io)(struct comedi_device *dev, int dir, int port,
     37				  int data, unsigned long regbase),
     38			unsigned long regbase);
     39
     40unsigned long subdev_8255_regbase(struct comedi_subdevice *s);
     41
     42#endif