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freebsd/sys/dev/mse/mse.c

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/*
* Copyright 1992 by the University of Guelph
*
* Permission to use, copy and modify this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting
* documentation.
* University of Guelph makes no representations about the suitability of
* this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* $FreeBSD$
*/
/*
* Driver for the Logitech and ATI Inport Bus mice for use with 386bsd and
* the X386 port, courtesy of
* Rick Macklem, rick@snowhite.cis.uoguelph.ca
* Caveats: The driver currently uses spltty(), but doesn't use any
* generic tty code. It could use splmse() (that only masks off the
* bus mouse interrupt, but that would require hacking in i386/isa/icu.s.
* (This may be worth the effort, since the Logitech generates 30/60
* interrupts/sec continuously while it is open.)
* NB: The ATI has NOT been tested yet!
*/
/*
* Modification history:
* Sep 6, 1994 -- Lars Fredriksen(fredriks@mcs.com)
* improved probe based on input from Logitech.
*
* Oct 19, 1992 -- E. Stark (stark@cs.sunysb.edu)
* fixes to make it work with Microsoft InPort busmouse
*
* Jan, 1993 -- E. Stark (stark@cs.sunysb.edu)
* added patches for new "select" interface
*
* May 4, 1993 -- E. Stark (stark@cs.sunysb.edu)
* changed position of some spl()'s in mseread
*
* October 8, 1993 -- E. Stark (stark@cs.sunysb.edu)
* limit maximum negative x/y value to -127 to work around XFree problem
* that causes spurious button pushes.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/poll.h>
#include <sys/selinfo.h>
#include <sys/uio.h>
#include <sys/mouse.h>
#include <machine/bus_pio.h>
#include <machine/bus.h>
#include <machine/clock.h>
#include <machine/resource.h>
#include <sys/rman.h>
#include <isa/isavar.h>
/* driver configuration flags (config) */
#define MSE_CONFIG_ACCEL 0x00f0 /* acceleration factor */
#define MSE_CONFIG_FLAGS (MSE_CONFIG_ACCEL)
/*
* Software control structure for mouse. The sc_enablemouse(),
* sc_disablemouse() and sc_getmouse() routines must be called spl'd().
*/
typedef struct mse_softc {
int sc_flags;
int sc_mousetype;
struct selinfo sc_selp;
struct resource *sc_port;
struct resource *sc_intr;
bus_space_tag_t sc_iot;
bus_space_handle_t sc_ioh;
void *sc_ih;
void (*sc_enablemouse) __P((bus_space_tag_t t,
bus_space_handle_t h));
void (*sc_disablemouse) __P((bus_space_tag_t t,
bus_space_handle_t h));
void (*sc_getmouse) __P((bus_space_tag_t t,
bus_space_handle_t h,
int *dx, int *dy, int *but));
int sc_deltax;
int sc_deltay;
int sc_obuttons;
int sc_buttons;
int sc_bytesread;
u_char sc_bytes[MOUSE_SYS_PACKETSIZE];
struct callout_handle sc_callout;
int sc_watchdog;
dev_t sc_dev;
dev_t sc_ndev;
mousehw_t hw;
mousemode_t mode;
mousestatus_t status;
} mse_softc_t;
static devclass_t mse_devclass;
static int mse_probe __P((device_t dev));
static int mse_attach __P((device_t dev));
static int mse_detach __P((device_t dev));
static device_method_t mse_methods[] = {
DEVMETHOD(device_probe, mse_probe),
DEVMETHOD(device_attach, mse_attach),
DEVMETHOD(device_detach, mse_detach),
{ 0, 0 }
};
static driver_t mse_driver = {
"mse",
mse_methods,
sizeof(mse_softc_t),
};
DRIVER_MODULE(mse, isa, mse_driver, mse_devclass, 0, 0);
static struct isa_pnp_id mse_ids[] = {
{ 0x000fd041, "Bus mouse" }, /* PNP0F00 */
{ 0x020fd041, "InPort mouse" }, /* PNP0F02 */
{ 0x0d0fd041, "InPort mouse compatible" }, /* PNP0F0D */
{ 0x110fd041, "Bus mouse compatible" }, /* PNP0F11 */
{ 0x150fd041, "Logitech bus mouse" }, /* PNP0F15 */
{ 0x180fd041, "Logitech bus mouse compatible" },/* PNP0F18 */
{ 0 }
};
static d_open_t mseopen;
static d_close_t mseclose;
static d_read_t mseread;
static d_ioctl_t mseioctl;
static d_poll_t msepoll;
#define CDEV_MAJOR 27
static struct cdevsw mse_cdevsw = {
/* open */ mseopen,
/* close */ mseclose,
/* read */ mseread,
/* write */ nowrite,
/* ioctl */ mseioctl,
/* poll */ msepoll,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ "mse",
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
/* bmaj */ -1
};
static void mseintr __P((void *));
static timeout_t msetimeout;
/* Flags */
#define MSESC_OPEN 0x1
#define MSESC_WANT 0x2
/* and Mouse Types */
#define MSE_NONE 0 /* don't move this! */
#define MSE_LOGITECH 0x1
#define MSE_ATIINPORT 0x2
#define MSE_LOGI_SIG 0xA5
#define MSE_PORTA 0
#define MSE_PORTB 1
#define MSE_PORTC 2
#define MSE_PORTD 3
#define MSE_IOSIZE 4
#define MSE_UNIT(dev) (minor(dev) >> 1)
#define MSE_NBLOCKIO(dev) (minor(dev) & 0x1)
/*
* Logitech bus mouse definitions
*/
#define MSE_SETUP 0x91 /* What does this mean? */
/* The definition for the control port */
/* is as follows: */
/* D7 = Mode set flag (1 = active) */
/* D6,D5 = Mode selection (port A) */
/* 00 = Mode 0 = Basic I/O */
/* 01 = Mode 1 = Strobed I/O */
/* 10 = Mode 2 = Bi-dir bus */
/* D4 = Port A direction (1 = input)*/
/* D3 = Port C (upper 4 bits) */
/* direction. (1 = input) */
/* D2 = Mode selection (port B & C) */
/* 0 = Mode 0 = Basic I/O */
/* 1 = Mode 1 = Strobed I/O */
/* D1 = Port B direction (1 = input)*/
/* D0 = Port C (lower 4 bits) */
/* direction. (1 = input) */
/* So 91 means Basic I/O on all 3 ports,*/
/* Port A is an input port, B is an */
/* output port, C is split with upper */
/* 4 bits being an output port and lower*/
/* 4 bits an input port, and enable the */
/* sucker. */
/* Courtesy Intel 8255 databook. Lars */
#define MSE_HOLD 0x80
#define MSE_RXLOW 0x00
#define MSE_RXHIGH 0x20
#define MSE_RYLOW 0x40
#define MSE_RYHIGH 0x60
#define MSE_DISINTR 0x10
#define MSE_INTREN 0x00
static int mse_probelogi __P((device_t dev, mse_softc_t *sc));
static void mse_disablelogi __P((bus_space_tag_t t,
bus_space_handle_t h));
static void mse_getlogi __P((bus_space_tag_t t,
bus_space_handle_t h,
int *dx, int *dy, int *but));
static void mse_enablelogi __P((bus_space_tag_t t,
bus_space_handle_t h));
/*
* ATI Inport mouse definitions
*/
#define MSE_INPORT_RESET 0x80
#define MSE_INPORT_STATUS 0x00
#define MSE_INPORT_DX 0x01
#define MSE_INPORT_DY 0x02
#define MSE_INPORT_MODE 0x07
#define MSE_INPORT_HOLD 0x20
#define MSE_INPORT_INTREN 0x09
static int mse_probeati __P((device_t dev, mse_softc_t *sc));
static void mse_enableati __P((bus_space_tag_t t,
bus_space_handle_t h));
static void mse_disableati __P((bus_space_tag_t t,
bus_space_handle_t h));
static void mse_getati __P((bus_space_tag_t t,
bus_space_handle_t h,
int *dx, int *dy, int *but));
#define MSEPRI (PZERO + 3)
/*
* Table of mouse types.
* Keep the Logitech last, since I haven't figured out how to probe it
* properly yet. (Someday I'll have the documentation.)
*/
static struct mse_types {
int m_type; /* Type of bus mouse */
int (*m_probe) __P((device_t dev, mse_softc_t *sc));
/* Probe routine to test for it */
void (*m_enable) __P((bus_space_tag_t t, bus_space_handle_t h));
/* Start routine */
void (*m_disable) __P((bus_space_tag_t t, bus_space_handle_t h));
/* Disable interrupts routine */
void (*m_get) __P((bus_space_tag_t t, bus_space_handle_t h,
int *dx, int *dy, int *but));
/* and get mouse status */
mousehw_t m_hw; /* buttons iftype type model hwid */
mousemode_t m_mode; /* proto rate res accel level size mask */
} mse_types[] = {
{ MSE_ATIINPORT,
mse_probeati, mse_enableati, mse_disableati, mse_getati,
{ 2, MOUSE_IF_INPORT, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
{ MOUSE_PROTO_INPORT, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
{ MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
{ MSE_LOGITECH,
mse_probelogi, mse_enablelogi, mse_disablelogi, mse_getlogi,
{ 2, MOUSE_IF_BUS, MOUSE_MOUSE, MOUSE_MODEL_GENERIC, 0, },
{ MOUSE_PROTO_BUS, -1, -1, 0, 0, MOUSE_MSC_PACKETSIZE,
{ MOUSE_MSC_SYNCMASK, MOUSE_MSC_SYNC, }, }, },
{ 0, },
};
static int
mse_probe(dev)
device_t dev;
{
mse_softc_t *sc;
int error;
int rid;
int i;
/* check PnP IDs */
error = ISA_PNP_PROBE(device_get_parent(dev), dev, mse_ids);
if (error == ENXIO)
return ENXIO;
sc = device_get_softc(dev);
rid = 0;
sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
MSE_IOSIZE, RF_ACTIVE);
if (sc->sc_port == NULL)
return ENXIO;
sc->sc_iot = rman_get_bustag(sc->sc_port);
sc->sc_ioh = rman_get_bushandle(sc->sc_port);
/*
* Check for each mouse type in the table.
*/
i = 0;
while (mse_types[i].m_type) {
if ((*mse_types[i].m_probe)(dev, sc)) {
sc->sc_mousetype = mse_types[i].m_type;
sc->sc_enablemouse = mse_types[i].m_enable;
sc->sc_disablemouse = mse_types[i].m_disable;
sc->sc_getmouse = mse_types[i].m_get;
sc->hw = mse_types[i].m_hw;
sc->mode = mse_types[i].m_mode;
bus_release_resource(dev, SYS_RES_IOPORT, rid,
sc->sc_port);
device_set_desc(dev, "Bus/InPort Mouse");
return 0;
}
i++;
}
bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
return ENXIO;
}
static int
mse_attach(dev)
device_t dev;
{
mse_softc_t *sc;
int flags;
int unit;
int rid;
sc = device_get_softc(dev);
unit = device_get_unit(dev);
rid = 0;
sc->sc_port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0,
MSE_IOSIZE, RF_ACTIVE);
if (sc->sc_port == NULL)
return ENXIO;
sc->sc_intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_ACTIVE);
if (sc->sc_intr == NULL) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
return ENXIO;
}
sc->sc_iot = rman_get_bustag(sc->sc_port);
sc->sc_ioh = rman_get_bushandle(sc->sc_port);
if (BUS_SETUP_INTR(device_get_parent(dev), dev, sc->sc_intr,
INTR_TYPE_TTY, mseintr, sc, &sc->sc_ih)) {
bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
return ENXIO;
}
flags = device_get_flags(dev);
sc->mode.accelfactor = (flags & MSE_CONFIG_ACCEL) >> 4;
callout_handle_init(&sc->sc_callout);
sc->sc_dev = make_dev(&mse_cdevsw, unit << 1, 0, 0, 0600,
"mse%d", unit);
sc->sc_ndev = make_dev(&mse_cdevsw, (unit<<1)+1, 0, 0, 0600,
"nmse%d", unit);
return 0;
}
static int
mse_detach(dev)
device_t dev;
{
mse_softc_t *sc;
int rid;
sc = device_get_softc(dev);
if (sc->sc_flags & MSESC_OPEN)
return EBUSY;
rid = 0;
BUS_TEARDOWN_INTR(device_get_parent(dev), dev, sc->sc_intr, sc->sc_ih);
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->sc_intr);
bus_release_resource(dev, SYS_RES_IOPORT, rid, sc->sc_port);
destroy_dev(sc->sc_dev);
destroy_dev(sc->sc_ndev);
return 0;
}
/*
* Exclusive open the mouse, initialize it and enable interrupts.
*/
static int
mseopen(dev, flags, fmt, p)
dev_t dev;
int flags;
int fmt;
struct proc *p;
{
mse_softc_t *sc;
int s;
sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
if (sc == NULL)
return (ENXIO);
if (sc->sc_mousetype == MSE_NONE)
return (ENXIO);
if (sc->sc_flags & MSESC_OPEN)
return (EBUSY);
sc->sc_flags |= MSESC_OPEN;
sc->sc_obuttons = sc->sc_buttons = MOUSE_MSC_BUTTONS;
sc->sc_deltax = sc->sc_deltay = 0;
sc->sc_bytesread = sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
sc->sc_watchdog = FALSE;
sc->sc_callout = timeout(msetimeout, dev, hz*2);
sc->mode.level = 0;
sc->status.flags = 0;
sc->status.button = sc->status.obutton = 0;
sc->status.dx = sc->status.dy = sc->status.dz = 0;
/*
* Initialize mouse interface and enable interrupts.
*/
s = spltty();
(*sc->sc_enablemouse)(sc->sc_iot, sc->sc_ioh);
splx(s);
return (0);
}
/*
* mseclose: just turn off mouse innterrupts.
*/
static int
mseclose(dev, flags, fmt, p)
dev_t dev;
int flags;
int fmt;
struct proc *p;
{
mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
int s;
untimeout(msetimeout, dev, sc->sc_callout);
callout_handle_init(&sc->sc_callout);
s = spltty();
(*sc->sc_disablemouse)(sc->sc_iot, sc->sc_ioh);
sc->sc_flags &= ~MSESC_OPEN;
splx(s);
return(0);
}
/*
* mseread: return mouse info using the MSC serial protocol, but without
* using bytes 4 and 5.
* (Yes this is cheesy, but it makes the X386 server happy, so...)
*/
static int
mseread(dev, uio, ioflag)
dev_t dev;
struct uio *uio;
int ioflag;
{
mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
int xfer, s, error;
/*
* If there are no protocol bytes to be read, set up a new protocol
* packet.
*/
s = spltty(); /* XXX Should be its own spl, but where is imlXX() */
if (sc->sc_bytesread >= sc->mode.packetsize) {
while (sc->sc_deltax == 0 && sc->sc_deltay == 0 &&
(sc->sc_obuttons ^ sc->sc_buttons) == 0) {
if (MSE_NBLOCKIO(dev)) {
splx(s);
return (0);
}
sc->sc_flags |= MSESC_WANT;
error = tsleep((caddr_t)sc, MSEPRI | PCATCH,
"mseread", 0);
if (error) {
splx(s);
return (error);
}
}
/*
* Generate protocol bytes.
* For some reason X386 expects 5 bytes but never uses
* the fourth or fifth?
*/
sc->sc_bytes[0] = sc->mode.syncmask[1]
| (sc->sc_buttons & ~sc->mode.syncmask[0]);
if (sc->sc_deltax > 127)
sc->sc_deltax = 127;
if (sc->sc_deltax < -127)
sc->sc_deltax = -127;
sc->sc_deltay = -sc->sc_deltay; /* Otherwise mousey goes wrong way */
if (sc->sc_deltay > 127)
sc->sc_deltay = 127;
if (sc->sc_deltay < -127)
sc->sc_deltay = -127;
sc->sc_bytes[1] = sc->sc_deltax;
sc->sc_bytes[2] = sc->sc_deltay;
sc->sc_bytes[3] = sc->sc_bytes[4] = 0;
sc->sc_bytes[5] = sc->sc_bytes[6] = 0;
sc->sc_bytes[7] = MOUSE_SYS_EXTBUTTONS;
sc->sc_obuttons = sc->sc_buttons;
sc->sc_deltax = sc->sc_deltay = 0;
sc->sc_bytesread = 0;
}
splx(s);
xfer = min(uio->uio_resid, sc->mode.packetsize - sc->sc_bytesread);
error = uiomove(&sc->sc_bytes[sc->sc_bytesread], xfer, uio);
if (error)
return (error);
sc->sc_bytesread += xfer;
return(0);
}
/*
* mseioctl: process ioctl commands.
*/
static int
mseioctl(dev, cmd, addr, flag, p)
dev_t dev;
u_long cmd;
caddr_t addr;
int flag;
struct proc *p;
{
mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
mousestatus_t status;
int err = 0;
int s;
switch (cmd) {
case MOUSE_GETHWINFO:
s = spltty();
*(mousehw_t *)addr = sc->hw;
if (sc->mode.level == 0)
((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
splx(s);
break;
case MOUSE_GETMODE:
s = spltty();
*(mousemode_t *)addr = sc->mode;
switch (sc->mode.level) {
case 0:
break;
case 1:
((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
break;
}
splx(s);
break;
case MOUSE_SETMODE:
switch (((mousemode_t *)addr)->level) {
case 0:
case 1:
break;
default:
return (EINVAL);
}
if (((mousemode_t *)addr)->accelfactor < -1)
return (EINVAL);
else if (((mousemode_t *)addr)->accelfactor >= 0)
sc->mode.accelfactor =
((mousemode_t *)addr)->accelfactor;
sc->mode.level = ((mousemode_t *)addr)->level;
switch (sc->mode.level) {
case 0:
sc->sc_bytesread = sc->mode.packetsize
= MOUSE_MSC_PACKETSIZE;
break;
case 1:
sc->sc_bytesread = sc->mode.packetsize
= MOUSE_SYS_PACKETSIZE;
break;
}
break;
case MOUSE_GETLEVEL:
*(int *)addr = sc->mode.level;
break;
case MOUSE_SETLEVEL:
switch (*(int *)addr) {
case 0:
sc->mode.level = *(int *)addr;
sc->sc_bytesread = sc->mode.packetsize
= MOUSE_MSC_PACKETSIZE;
break;
case 1:
sc->mode.level = *(int *)addr;
sc->sc_bytesread = sc->mode.packetsize
= MOUSE_SYS_PACKETSIZE;
break;
default:
return (EINVAL);
}
break;
case MOUSE_GETSTATUS:
s = spltty();
status = sc->status;
sc->status.flags = 0;
sc->status.obutton = sc->status.button;
sc->status.button = 0;
sc->status.dx = 0;
sc->status.dy = 0;
sc->status.dz = 0;
splx(s);
*(mousestatus_t *)addr = status;
break;
case MOUSE_READSTATE:
case MOUSE_READDATA:
return (ENODEV);
#if (defined(MOUSE_GETVARS))
case MOUSE_GETVARS:
case MOUSE_SETVARS:
return (ENODEV);
#endif
default:
return (ENOTTY);
}
return (err);
}
/*
* msepoll: check for mouse input to be processed.
*/
static int
msepoll(dev, events, p)
dev_t dev;
int events;
struct proc *p;
{
mse_softc_t *sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
int s;
int revents = 0;
s = spltty();
if (events & (POLLIN | POLLRDNORM)) {
if (sc->sc_bytesread != sc->mode.packetsize ||
sc->sc_deltax != 0 || sc->sc_deltay != 0 ||
(sc->sc_obuttons ^ sc->sc_buttons) != 0)
revents |= events & (POLLIN | POLLRDNORM);
else {
/*
* Since this is an exclusive open device, any previous
* proc pointer is trash now, so we can just assign it.
*/
selrecord(p, &sc->sc_selp);
}
}
splx(s);
return (revents);
}
/*
* msetimeout: watchdog timer routine.
*/
static void
msetimeout(arg)
void *arg;
{
dev_t dev;
mse_softc_t *sc;
dev = (dev_t)arg;
sc = devclass_get_softc(mse_devclass, MSE_UNIT(dev));
if (sc->sc_watchdog) {
if (bootverbose)
printf("mse%d: lost interrupt?\n", MSE_UNIT(dev));
mseintr(sc);
}
sc->sc_watchdog = TRUE;
sc->sc_callout = timeout(msetimeout, dev, hz);
}
/*
* mseintr: update mouse status. sc_deltax and sc_deltay are accumulative.
*/
static void
mseintr(arg)
void *arg;
{
/*
* the table to turn MouseSystem button bits (MOUSE_MSC_BUTTON?UP)
* into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
*/
static int butmap[8] = {
0,
MOUSE_BUTTON3DOWN,
MOUSE_BUTTON2DOWN,
MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
};
mse_softc_t *sc = arg;
int dx, dy, but;
int sign;
#ifdef DEBUG
static int mse_intrcnt = 0;
if((mse_intrcnt++ % 10000) == 0)
printf("mseintr\n");
#endif /* DEBUG */
if ((sc->sc_flags & MSESC_OPEN) == 0)
return;
(*sc->sc_getmouse)(sc->sc_iot, sc->sc_ioh, &dx, &dy, &but);
if (sc->mode.accelfactor > 0) {
sign = (dx < 0);
dx = dx * dx / sc->mode.accelfactor;
if (dx == 0)
dx = 1;
if (sign)
dx = -dx;
sign = (dy < 0);
dy = dy * dy / sc->mode.accelfactor;
if (dy == 0)
dy = 1;
if (sign)
dy = -dy;
}
sc->sc_deltax += dx;
sc->sc_deltay += dy;
sc->sc_buttons = but;
but = butmap[~but & MOUSE_MSC_BUTTONS];
sc->status.dx += dx;
sc->status.dy += dy;
sc->status.flags |= ((dx || dy) ? MOUSE_POSCHANGED : 0)
| (sc->status.button ^ but);
sc->status.button = but;
sc->sc_watchdog = FALSE;
/*
* 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(dev, sc)
device_t dev;
mse_softc_t *sc;
{
int sig;
bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTD, MSE_SETUP);
/* set the signature port */
bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB, MSE_LOGI_SIG);
DELAY(30000); /* 30 ms delay */
sig = bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTB) & 0xFF;
if (sig == MSE_LOGI_SIG) {
bus_space_write_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC,
MSE_DISINTR);
return(1);
} else {
if (bootverbose)
device_printf(dev, "wrong signature %x\n", sig);
return(0);
}
}
/*
* Initialize Logitech mouse and enable interrupts.
*/
static void
mse_enablelogi(tag, handle)
bus_space_tag_t tag;
bus_space_handle_t handle;
{
int dx, dy, but;
bus_space_write_1(tag, handle, MSE_PORTD, MSE_SETUP);
mse_getlogi(tag, handle, &dx, &dy, &but);
}
/*
* Disable interrupts for Logitech mouse.
*/
static void
mse_disablelogi(tag, handle)
bus_space_tag_t tag;
bus_space_handle_t handle;
{
bus_space_write_1(tag, handle, MSE_PORTC, MSE_DISINTR);
}
/*
* Get the current dx, dy and button up/down state.
*/
static void
mse_getlogi(tag, handle, dx, dy, but)
bus_space_tag_t tag;
bus_space_handle_t handle;
int *dx;
int *dy;
int *but;
{
register char x, y;
bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXLOW);
x = bus_space_read_1(tag, handle, MSE_PORTA);
*but = (x >> 5) & MOUSE_MSC_BUTTONS;
x &= 0xf;
bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RXHIGH);
x |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYLOW);
y = (bus_space_read_1(tag, handle, MSE_PORTA) & 0xf);
bus_space_write_1(tag, handle, MSE_PORTC, MSE_HOLD | MSE_RYHIGH);
y |= (bus_space_read_1(tag, handle, MSE_PORTA) << 4);
*dx = x;
*dy = y;
bus_space_write_1(tag, handle, 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(dev, sc)
device_t dev;
mse_softc_t *sc;
{
int i;
for (i = 0; i < 2; i++)
if (bus_space_read_1(sc->sc_iot, sc->sc_ioh, MSE_PORTC) == 0xde)
return (1);
return (0);
}
/*
* Initialize ATI Inport mouse and enable interrupts.
*/
static void
mse_enableati(tag, handle)
bus_space_tag_t tag;
bus_space_handle_t handle;
{
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_RESET);
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
}
/*
* Disable interrupts for ATI Inport mouse.
*/
static void
mse_disableati(tag, handle)
bus_space_tag_t tag;
bus_space_handle_t handle;
{
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
bus_space_write_1(tag, handle, MSE_PORTB, 0);
}
/*
* Get current dx, dy and up/down button state.
*/
static void
mse_getati(tag, handle, dx, dy, but)
bus_space_tag_t tag;
bus_space_handle_t handle;
int *dx;
int *dy;
int *but;
{
register char byte;
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_HOLD);
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_STATUS);
*but = ~bus_space_read_1(tag, handle, MSE_PORTB) & MOUSE_MSC_BUTTONS;
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DX);
byte = bus_space_read_1(tag, handle, MSE_PORTB);
*dx = byte;
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_DY);
byte = bus_space_read_1(tag, handle, MSE_PORTB);
*dy = byte;
bus_space_write_1(tag, handle, MSE_PORTA, MSE_INPORT_MODE);
bus_space_write_1(tag, handle, MSE_PORTB, MSE_INPORT_INTREN);
}
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