4ff3de8e80
misplaced extern declarations (mostly prototypes of interrupt handlers) that this exposed. The prototypes should be moved back to the driver sources when the functions are staticalized. Added idempotency guards to <machine/conf.h>. "ioconf.h" can't be included when building LKMs so define a wart in bsd.kmod.mk to help guard against including it.
569 lines
13 KiB
C
569 lines
13 KiB
C
/*
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* Copyright 1992 by the University of Guelph
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*
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* Permission to use, copy and modify this
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* software and its documentation for any purpose and without
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* fee is hereby granted, provided that the above copyright
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* notice appear in all copies and that both that copyright
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* notice and this permission notice appear in supporting
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* documentation.
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* University of Guelph makes no representations about the suitability of
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* this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*
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* $Id: mse.c,v 1.14 1995/09/08 11:07:50 bde Exp $
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*/
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/*
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* Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
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* the X386 port, courtesy of
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* Rick Macklem, rick@snowhite.cis.uoguelph.ca
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* Caveats: The driver currently uses spltty(), but doesn't use any
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* generic tty code. It could use splmse() (that only masks off the
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* bus mouse interrupt, but that would require hacking in i386/isa/icu.s.
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* (This may be worth the effort, since the Logitech generates 30/60
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* interrupts/sec continuously while it is open.)
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* NB: The ATI has NOT been tested yet!
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*/
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/*
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* Modification history:
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* Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com)
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* improved probe based on input from Logitech.
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*
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* Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu)
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* fixes to make it work with Microsoft InPort busmouse
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*
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* Jan, 1993 -- E. Stark (stark@cs.sunysb.edu)
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* added patches for new "select" interface
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*
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* May 4, 1993 -- E. Stark (stark@cs.sunysb.edu)
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* changed position of some spl()'s in mseread
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*
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* October 8, 1993 -- E. Stark (stark@cs.sunysb.edu)
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* limit maximum negative x/y value to -127 to work around XFree problem
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* that causes spurious button pushes.
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*/
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#include "mse.h"
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#if NMSE > 0
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/buf.h>
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#include <sys/kernel.h>
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#include <sys/ioctl.h>
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#include <sys/uio.h>
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#include <sys/devconf.h>
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#include <machine/clock.h>
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#include <i386/isa/isa_device.h>
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#include <i386/isa/icu.h>
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static int mseprobe(struct isa_device *);
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static int mseattach(struct isa_device *);
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struct isa_driver msedriver = {
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mseprobe, mseattach, "mse"
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};
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/*
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* Software control structure for mouse. The sc_enablemouse(),
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* sc_disablemouse() and sc_getmouse() routines must be called spl'd().
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*/
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#define PROTOBYTES 5
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struct mse_softc {
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int sc_flags;
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int sc_mousetype;
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struct selinfo sc_selp;
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u_int sc_port;
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void (*sc_enablemouse)();
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void (*sc_disablemouse)();
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void (*sc_getmouse)();
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int sc_deltax;
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int sc_deltay;
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int sc_obuttons;
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int sc_buttons;
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int sc_bytesread;
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u_char sc_bytes[PROTOBYTES];
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} mse_sc[NMSE];
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/* Flags */
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#define MSESC_OPEN 0x1
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#define MSESC_WANT 0x2
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/* and Mouse Types */
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#define MSE_LOGITECH 0x1
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#define MSE_ATIINPORT 0x2
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#define MSE_LOGI_SIG 0xA5
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#define MSE_PORTA 0
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#define MSE_PORTB 1
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#define MSE_PORTC 2
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#define MSE_PORTD 3
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#define MSE_UNIT(dev) (minor(dev) >> 1)
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#define MSE_NBLOCKIO(dev) (minor(dev) & 0x1)
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/*
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* Logitech bus mouse definitions
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*/
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#define MSE_SETUP 0x91 /* What does this mean? */
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/* The definition for the control port */
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/* is as follows: */
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/* D7 = Mode set flag (1 = active) */
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/* D6,D5 = Mode selection (port A) */
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/* 00 = Mode 0 = Basic I/O */
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/* 01 = Mode 1 = Strobed I/O */
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/* 10 = Mode 2 = Bi-dir bus */
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/* D4 = Port A direction (1 = input)*/
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/* D3 = Port C (upper 4 bits) */
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/* direction. (1 = input) */
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/* D2 = Mode selection (port B & C) */
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/* 0 = Mode 0 = Basic I/O */
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/* 1 = Mode 1 = Strobed I/O */
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/* D1 = Port B direction (1 = input)*/
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/* D0 = Port C (lower 4 bits) */
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/* direction. (1 = input) */
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/* So 91 means Basic I/O on all 3 ports,*/
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/* Port A is an input port, B is an */
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/* output port, C is split with upper */
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/* 4 bits being an output port and lower*/
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/* 4 bits an input port, and enable the */
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/* sucker. */
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/* Courtesy Intel 8255 databook. Lars */
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#define MSE_HOLD 0x80
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#define MSE_RXLOW 0x00
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#define MSE_RXHIGH 0x20
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#define MSE_RYLOW 0x40
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#define MSE_RYHIGH 0x60
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#define MSE_DISINTR 0x10
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#define MSE_INTREN 0x00
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static int mse_probelogi();
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static void mse_enablelogi(), mse_disablelogi(), mse_getlogi();
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/*
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* ATI Inport mouse definitions
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*/
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#define MSE_INPORT_RESET 0x80
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#define MSE_INPORT_STATUS 0x00
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#define MSE_INPORT_DX 0x01
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#define MSE_INPORT_DY 0x02
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#define MSE_INPORT_MODE 0x07
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#define MSE_INPORT_HOLD 0x20
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#define MSE_INPORT_INTREN 0x09
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static int mse_probeati();
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static void mse_enableati(), mse_disableati(), mse_getati();
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#define MSEPRI (PZERO + 3)
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/*
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* Table of mouse types.
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* Keep the Logitech last, since I haven't figured out how to probe it
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* properly yet. (Someday I'll have the documentation.)
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*/
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struct mse_types {
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int m_type; /* Type of bus mouse */
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int (*m_probe)(); /* Probe routine to test for it */
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void (*m_enable)(); /* Start routine */
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void (*m_disable)(); /* Disable interrupts routine */
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void (*m_get)(); /* and get mouse status */
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} mse_types[] = {
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{ MSE_ATIINPORT, mse_probeati, mse_enableati, mse_disableati, mse_getati },
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{ MSE_LOGITECH, mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi },
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{ 0, },
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};
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static struct kern_devconf kdc_mse[NMSE] = { {
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0, 0, 0, /* filled in by dev_attach */
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"mse", 0, { MDDT_ISA, 0, "tty" },
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isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
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&kdc_isa0, /* parent */
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0, /* parentdata */
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DC_UNCONFIGURED, /* state */
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"ATI or Logitech bus mouse adapter",
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DC_CLS_MISC /* class */
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} };
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static inline void
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mse_registerdev(struct isa_device *id)
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{
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if(id->id_unit)
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kdc_mse[id->id_unit] = kdc_mse[0];
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kdc_mse[id->id_unit].kdc_unit = id->id_unit;
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kdc_mse[id->id_unit].kdc_isa = id;
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dev_attach(&kdc_mse[id->id_unit]);
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}
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int
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mseprobe(idp)
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register struct isa_device *idp;
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{
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register struct mse_softc *sc = &mse_sc[idp->id_unit];
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register int i;
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mse_registerdev(idp);
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/*
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* Check for each mouse type in the table.
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*/
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i = 0;
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while (mse_types[i].m_type) {
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if ((*mse_types[i].m_probe)(idp)) {
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sc->sc_mousetype = mse_types[i].m_type;
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sc->sc_enablemouse = mse_types[i].m_enable;
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sc->sc_disablemouse = mse_types[i].m_disable;
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sc->sc_getmouse = mse_types[i].m_get;
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return (1);
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}
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i++;
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}
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return (0);
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}
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int
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mseattach(idp)
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struct isa_device *idp;
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{
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struct mse_softc *sc = &mse_sc[idp->id_unit];
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sc->sc_port = idp->id_iobase;
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kdc_mse[idp->id_unit].kdc_state = DC_IDLE;
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return (1);
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}
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/*
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* Exclusive open the mouse, initialize it and enable interrupts.
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*/
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int
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mseopen(dev, flags, fmt, p)
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dev_t dev;
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int flags;
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int fmt;
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struct proc *p;
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{
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register struct mse_softc *sc;
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int s;
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if (MSE_UNIT(dev) >= NMSE)
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return (ENXIO);
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sc = &mse_sc[MSE_UNIT(dev)];
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if (sc->sc_flags & MSESC_OPEN)
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return (EBUSY);
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sc->sc_flags |= MSESC_OPEN;
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kdc_mse[MSE_UNIT(dev)].kdc_state = DC_BUSY;
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sc->sc_obuttons = sc->sc_buttons = 0x7;
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sc->sc_deltax = sc->sc_deltay = 0;
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sc->sc_bytesread = PROTOBYTES;
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/*
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* Initialize mouse interface and enable interrupts.
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*/
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s = spltty();
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(*sc->sc_enablemouse)(sc->sc_port);
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splx(s);
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return (0);
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}
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/*
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* mseclose: just turn off mouse innterrupts.
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*/
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int
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mseclose(dev, flags, fmt, p)
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dev_t dev;
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int flags;
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int fmt;
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struct proc *p;
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{
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struct mse_softc *sc = &mse_sc[MSE_UNIT(dev)];
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int s;
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s = spltty();
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(*sc->sc_disablemouse)(sc->sc_port);
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sc->sc_flags &= ~MSESC_OPEN;
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kdc_mse[MSE_UNIT(dev)].kdc_state = DC_IDLE;
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splx(s);
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return(0);
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}
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|
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/*
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* mseread: return mouse info using the MSC serial protocol, but without
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* using bytes 4 and 5.
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* (Yes this is cheesy, but it makes the X386 server happy, so...)
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*/
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int
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mseread(dev, uio, ioflag)
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dev_t dev;
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struct uio *uio;
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int ioflag;
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{
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register struct mse_softc *sc = &mse_sc[MSE_UNIT(dev)];
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int xfer, s, error;
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|
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/*
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* If there are no protocol bytes to be read, set up a new protocol
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* packet.
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*/
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s = spltty(); /* XXX Should be its own spl, but where is imlXX() */
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if (sc->sc_bytesread >= PROTOBYTES) {
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while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
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(sc->sc_obuttons ^ sc->sc_buttons) == 0) {
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if (MSE_NBLOCKIO(dev)) {
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splx(s);
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return (0);
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}
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sc->sc_flags |= MSESC_WANT;
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if (error = tsleep((caddr_t)sc, MSEPRI | PCATCH,
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"mseread", 0)) {
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splx(s);
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return (error);
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}
|
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}
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|
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/*
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* Generate protocol bytes.
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* For some reason X386 expects 5 bytes but never uses
|
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* the fourth or fifth?
|
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*/
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sc->sc_bytes[0] = 0x80 | (sc->sc_buttons & ~0xf8);
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if (sc->sc_deltax > 127)
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sc->sc_deltax = 127;
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if (sc->sc_deltax < -127)
|
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sc->sc_deltax = -127;
|
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sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
|
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if (sc->sc_deltay > 127)
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sc->sc_deltay = 127;
|
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if (sc->sc_deltay < -127)
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sc->sc_deltay = -127;
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sc->sc_bytes[1] = sc->sc_deltax;
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sc->sc_bytes[2] = sc->sc_deltay;
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sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
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sc->sc_obuttons = sc->sc_buttons;
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sc->sc_deltax = sc->sc_deltay = 0;
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sc->sc_bytesread = 0;
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}
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splx(s);
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xfer = min(uio->uio_resid, PROTOBYTES - sc->sc_bytesread);
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if (error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio))
|
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return (error);
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sc->sc_bytesread += xfer;
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return(0);
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}
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|
|
/*
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* mseselect: check for mouse input to be processed.
|
|
*/
|
|
int
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mseselect(dev, rw, p)
|
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dev_t dev;
|
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int rw;
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struct proc *p;
|
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{
|
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register struct mse_softc *sc = &mse_sc[MSE_UNIT(dev)];
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int s;
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s = spltty();
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if (sc->sc_bytesread != PROTOBYTES || sc->sc_deltax != 0 ||
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sc->sc_deltay != 0 || (sc->sc_obuttons ^ sc->sc_buttons) != 0) {
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splx(s);
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return (1);
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}
|
|
|
|
/*
|
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* Since this is an exclusive open device, any previous proc.
|
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* pointer is trash now, so we can just assign it.
|
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*/
|
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selrecord(p, &sc->sc_selp);
|
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splx(s);
|
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return (0);
|
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}
|
|
|
|
/*
|
|
* mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
|
|
*/
|
|
void
|
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mseintr(unit)
|
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int unit;
|
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{
|
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register struct mse_softc *sc = &mse_sc[unit];
|
|
pid_t p;
|
|
|
|
#ifdef DEBUG
|
|
static int mse_intrcnt = 0;
|
|
if((mse_intrcnt++ % 10000) == 0)
|
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printf("mseintr\n");
|
|
#endif /* DEBUG */
|
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if ((sc->sc_flags & MSESC_OPEN) == 0)
|
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return;
|
|
|
|
(*sc->sc_getmouse)(sc->sc_port, &sc->sc_deltax, &sc->sc_deltay, &sc->sc_buttons);
|
|
|
|
/*
|
|
* If mouse state has changed, wake up anyone wanting to know.
|
|
*/
|
|
if (sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
|
|
(sc->sc_obuttons ^ sc->sc_buttons) != 0) {
|
|
if (sc->sc_flags & MSESC_WANT) {
|
|
sc->sc_flags &= ~MSESC_WANT;
|
|
wakeup((caddr_t)sc);
|
|
}
|
|
selwakeup(&sc->sc_selp);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Routines for the Logitech mouse.
|
|
*/
|
|
/*
|
|
* Test for a Logitech bus mouse and return 1 if it is.
|
|
* (until I know how to use the signature port properly, just disable
|
|
* interrupts and return 1)
|
|
*/
|
|
static int
|
|
mse_probelogi(idp)
|
|
register struct isa_device *idp;
|
|
{
|
|
|
|
int sig;
|
|
|
|
outb(idp->id_iobase + MSE_PORTD, MSE_SETUP);
|
|
/* set the signature port */
|
|
outb(idp->id_iobase + MSE_PORTB, MSE_LOGI_SIG);
|
|
|
|
DELAY(30000); /* 30 ms delay */
|
|
sig = inb(idp->id_iobase + MSE_PORTB) & 0xFF;
|
|
if (sig == MSE_LOGI_SIG) {
|
|
outb(idp->id_iobase + MSE_PORTC, MSE_DISINTR);
|
|
return(1);
|
|
} else {
|
|
printf("mse%d: wrong signature %x\n",idp->id_unit,sig);
|
|
return(0);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize Logitech mouse and enable interrupts.
|
|
*/
|
|
static void
|
|
mse_enablelogi(port)
|
|
register u_int port;
|
|
{
|
|
int dx, dy, but;
|
|
|
|
outb(port + MSE_PORTD, MSE_SETUP);
|
|
mse_getlogi(port, &dx, &dy, &but);
|
|
}
|
|
|
|
/*
|
|
* Disable interrupts for Logitech mouse.
|
|
*/
|
|
static void
|
|
mse_disablelogi(port)
|
|
register u_int port;
|
|
{
|
|
|
|
outb(port + MSE_PORTC, MSE_DISINTR);
|
|
}
|
|
|
|
/*
|
|
* Get the current dx, dy and button up/down state.
|
|
*/
|
|
static void
|
|
mse_getlogi(port, dx, dy, but)
|
|
register u_int port;
|
|
int *dx;
|
|
int *dy;
|
|
int *but;
|
|
{
|
|
register char x, y;
|
|
|
|
outb(port + MSE_PORTC, MSE_HOLD | MSE_RXLOW);
|
|
x = inb(port + MSE_PORTA);
|
|
*but = (x >> 5) & 0x7;
|
|
x &= 0xf;
|
|
outb(port + MSE_PORTC, MSE_HOLD | MSE_RXHIGH);
|
|
x |= (inb(port + MSE_PORTA) << 4);
|
|
outb(port + MSE_PORTC, MSE_HOLD | MSE_RYLOW);
|
|
y = (inb(port + MSE_PORTA) & 0xf);
|
|
outb(port + MSE_PORTC, MSE_HOLD | MSE_RYHIGH);
|
|
y |= (inb(port + MSE_PORTA) << 4);
|
|
*dx += x;
|
|
*dy += y;
|
|
outb(port + MSE_PORTC, MSE_INTREN);
|
|
}
|
|
|
|
/*
|
|
* Routines for the ATI Inport bus mouse.
|
|
*/
|
|
/*
|
|
* Test for a ATI Inport bus mouse and return 1 if it is.
|
|
* (do not enable interrupts)
|
|
*/
|
|
static int
|
|
mse_probeati(idp)
|
|
register struct isa_device *idp;
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < 2; i++)
|
|
if (inb(idp->id_iobase + MSE_PORTC) == 0xde)
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Initialize ATI Inport mouse and enable interrupts.
|
|
*/
|
|
static void
|
|
mse_enableati(port)
|
|
register u_int port;
|
|
{
|
|
|
|
outb(port + MSE_PORTA, MSE_INPORT_RESET);
|
|
outb(port + MSE_PORTA, MSE_INPORT_MODE);
|
|
outb(port + MSE_PORTB, MSE_INPORT_INTREN);
|
|
}
|
|
|
|
/*
|
|
* Disable interrupts for ATI Inport mouse.
|
|
*/
|
|
static void
|
|
mse_disableati(port)
|
|
register u_int port;
|
|
{
|
|
|
|
outb(port + MSE_PORTA, MSE_INPORT_MODE);
|
|
outb(port + MSE_PORTB, 0);
|
|
}
|
|
|
|
/*
|
|
* Get current dx, dy and up/down button state.
|
|
*/
|
|
static void
|
|
mse_getati(port, dx, dy, but)
|
|
register u_int port;
|
|
int *dx;
|
|
int *dy;
|
|
int *but;
|
|
{
|
|
register char byte;
|
|
|
|
outb(port + MSE_PORTA, MSE_INPORT_MODE);
|
|
outb(port + MSE_PORTB, MSE_INPORT_HOLD);
|
|
outb(port + MSE_PORTA, MSE_INPORT_STATUS);
|
|
*but = ~(inb(port + MSE_PORTB) & 0x7);
|
|
outb(port + MSE_PORTA, MSE_INPORT_DX);
|
|
byte = inb(port + MSE_PORTB);
|
|
*dx += byte;
|
|
outb(port + MSE_PORTA, MSE_INPORT_DY);
|
|
byte = inb(port + MSE_PORTB);
|
|
*dy += byte;
|
|
outb(port + MSE_PORTA, MSE_INPORT_MODE);
|
|
outb(port + MSE_PORTB, MSE_INPORT_INTREN);
|
|
}
|
|
#endif /* NMSE */
|