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freebsd-skq/sys/isa/psm.c
Alfred Perlstein 85f190e4d1 Fixes to make select/poll mpsafe. 
Problem:
  selwakeup required calling pfind which would cause lock order
  reversals with the allproc_lock and the per-process filedesc lock.
Solution:
  Instead of recording the pid of the select()'ing process into the
  selinfo structure, actually record a pointer to the thread.  To
  avoid dereferencing a bad address all the selinfo structures that
  are in use by a thread are kept in a list hung off the thread
  (protected by sellock).  When a selwakeup occurs the selinfo is
  removed from that threads list, it is also removed on the way out
  of select or poll where the thread will traverse its list removing
  all the selinfos from its own list.

Problem:
  Previously the PROC_LOCK was used to provide the mutual exclusion
  needed to ensure proper locking, this couldn't work because there
  was a single condvar used for select and poll and condvars can
  only be used with a single mutex.
Solution:
  Introduce a global mutex 'sellock' which is used to provide mutual
  exclusion when recording events to wait on as well as performing
  notification when an event occurs.

Interesting note:
  schedlock is required to manipulate the per-thread TDF_SELECT
  flag, however if given its own field it would not need schedlock,
  also because TDF_SELECT is only manipulated under sellock one
  doesn't actually use schedlock for syncronization, only to protect
  against corruption.

Proc locks are no longer used in select/poll.

Portions contributed by: davidc
2002-03-14 01:32:30 +00:00

2973 lines
85 KiB
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/*-
* Copyright (c) 1992, 1993 Erik Forsberg.
* Copyright (c) 1996, 1997 Kazutaka YOKOTA.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL I BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
/*
* Ported to 386bsd Oct 17, 1992
* Sandi Donno, Computer Science, University of Cape Town, South Africa
* Please send bug reports to sandi@cs.uct.ac.za
*
* Thanks are also due to Rick Macklem, rick@snowhite.cis.uoguelph.ca -
* although I was only partially successful in getting the alpha release
* of his "driver for the Logitech and ATI Inport Bus mice for use with
* 386bsd and the X386 port" to work with my Microsoft mouse, I nevertheless
* found his code to be an invaluable reference when porting this driver
* to 386bsd.
*
* Further modifications for latest 386BSD+patchkit and port to NetBSD,
* Andrew Herbert <andrew@werple.apana.org.au> - 8 June 1993
*
* Cloned from the Microsoft Bus Mouse driver, also by Erik Forsberg, by
* Andrew Herbert - 12 June 1993
*
* Modified for PS/2 mouse by Charles Hannum <mycroft@ai.mit.edu>
* - 13 June 1993
*
* Modified for PS/2 AUX mouse by Shoji Yuen <yuen@nuie.nagoya-u.ac.jp>
* - 24 October 1993
*
* Hardware access routines and probe logic rewritten by
* Kazutaka Yokota <yokota@zodiac.mech.utsunomiya-u.ac.jp>
* - 3, 14, 22 October 1996.
* - 12 November 1996. IOCTLs and rearranging `psmread', `psmioctl'...
* - 14, 30 November 1996. Uses `kbdio.c'.
* - 13 December 1996. Uses queuing version of `kbdio.c'.
* - January/February 1997. Tweaked probe logic for
* HiNote UltraII/Latitude/Armada laptops.
* - 30 July 1997. Added APM support.
* - 5 March 1997. Defined driver configuration flags (PSM_CONFIG_XXX).
* Improved sync check logic.
* Vendor specific support routines.
*/
#include "opt_psm.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/module.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/poll.h>
#include <sys/syslog.h>
#include <machine/bus.h>
#include <sys/rman.h>
#include <sys/selinfo.h>
#include <sys/time.h>
#include <sys/uio.h>
#include <machine/limits.h>
#include <sys/mouse.h>
#include <machine/resource.h>
#include <isa/isavar.h>
#include <dev/kbd/atkbdcreg.h>
/*
* Driver specific options: the following options may be set by
* `options' statements in the kernel configuration file.
*/
/* debugging */
#ifndef PSM_DEBUG
#define PSM_DEBUG 0 /* logging: 0: none, 1: brief, 2: verbose */
#endif
#ifndef PSM_SYNCERR_THRESHOLD1
#define PSM_SYNCERR_THRESHOLD1 20
#endif
#ifndef PSM_INPUT_TIMEOUT
#define PSM_INPUT_TIMEOUT 2000000 /* 2 sec */
#endif
/* end of driver specific options */
#define PSM_DRIVER_NAME "psm"
#define PSMCPNP_DRIVER_NAME "psmcpnp"
/* input queue */
#define PSM_BUFSIZE 960
#define PSM_SMALLBUFSIZE 240
/* operation levels */
#define PSM_LEVEL_BASE 0
#define PSM_LEVEL_STANDARD 1
#define PSM_LEVEL_NATIVE 2
#define PSM_LEVEL_MIN PSM_LEVEL_BASE
#define PSM_LEVEL_MAX PSM_LEVEL_NATIVE
/* Logitech PS2++ protocol */
#define MOUSE_PS2PLUS_CHECKBITS(b) \
((((b[2] & 0x03) << 2) | 0x02) == (b[1] & 0x0f))
#define MOUSE_PS2PLUS_PACKET_TYPE(b) \
(((b[0] & 0x30) >> 2) | ((b[1] & 0x30) >> 4))
/* some macros */
#define PSM_UNIT(dev) (minor(dev) >> 1)
#define PSM_NBLOCKIO(dev) (minor(dev) & 1)
#define PSM_MKMINOR(unit,block) (((unit) << 1) | ((block) ? 0:1))
#ifndef max
#define max(x,y) ((x) > (y) ? (x) : (y))
#endif
#ifndef min
#define min(x,y) ((x) < (y) ? (x) : (y))
#endif
#define abs(x) (((x) < 0) ? -(x) : (x))
/* ring buffer */
typedef struct ringbuf {
int count; /* # of valid elements in the buffer */
int head; /* head pointer */
int tail; /* tail poiner */
unsigned char buf[PSM_BUFSIZE];
} ringbuf_t;
/* driver control block */
struct psm_softc { /* Driver status information */
int unit;
struct selinfo rsel; /* Process selecting for Input */
unsigned char state; /* Mouse driver state */
int config; /* driver configuration flags */
int flags; /* other flags */
KBDC kbdc; /* handle to access the keyboard controller */
struct resource *intr; /* IRQ resource */
void *ih; /* interrupt handle */
mousehw_t hw; /* hardware information */
mousemode_t mode; /* operation mode */
mousemode_t dflt_mode; /* default operation mode */
mousestatus_t status; /* accumulated mouse movement */
ringbuf_t queue; /* mouse status queue */
unsigned char ipacket[16]; /* interim input buffer */
int inputbytes; /* # of bytes in the input buffer */
int button; /* the latest button state */
int xold; /* previous absolute X position */
int yold; /* previous absolute Y position */
int syncerrors;
struct timeval inputtimeout;
int watchdog; /* watchdog timer flag */
struct callout_handle callout; /* watchdog timer call out */
dev_t dev;
dev_t bdev;
};
devclass_t psm_devclass;
#define PSM_SOFTC(unit) ((struct psm_softc*)devclass_get_softc(psm_devclass, unit))
/* driver state flags (state) */
#define PSM_VALID 0x80
#define PSM_OPEN 1 /* Device is open */
#define PSM_ASLP 2 /* Waiting for mouse data */
/* driver configuration flags (config) */
#define PSM_CONFIG_RESOLUTION 0x000f /* resolution */
#define PSM_CONFIG_ACCEL 0x00f0 /* acceleration factor */
#define PSM_CONFIG_NOCHECKSYNC 0x0100 /* disable sync. test */
#define PSM_CONFIG_NOIDPROBE 0x0200 /* disable mouse model probe */
#define PSM_CONFIG_NORESET 0x0400 /* don't reset the mouse */
#define PSM_CONFIG_FORCETAP 0x0800 /* assume `tap' action exists */
#define PSM_CONFIG_IGNPORTERROR 0x1000 /* ignore error in aux port test */
#define PSM_CONFIG_HOOKRESUME 0x2000 /* hook the system resume event */
#define PSM_CONFIG_INITAFTERSUSPEND 0x4000 /* init the device at the resume event */
#define PSM_CONFIG_SYNCHACK 0x8000 /* enable `out-of-sync' hack */
#define PSM_CONFIG_FLAGS (PSM_CONFIG_RESOLUTION \
| PSM_CONFIG_ACCEL \
| PSM_CONFIG_NOCHECKSYNC \
| PSM_CONFIG_SYNCHACK \
| PSM_CONFIG_NOIDPROBE \
| PSM_CONFIG_NORESET \
| PSM_CONFIG_FORCETAP \
| PSM_CONFIG_IGNPORTERROR \
| PSM_CONFIG_HOOKRESUME \
| PSM_CONFIG_INITAFTERSUSPEND)
/* other flags (flags) */
#define PSM_FLAGS_FINGERDOWN 0x0001 /* VersaPad finger down */
/* for backward compatibility */
#define OLD_MOUSE_GETHWINFO _IOR('M', 1, old_mousehw_t)
#define OLD_MOUSE_GETMODE _IOR('M', 2, old_mousemode_t)
#define OLD_MOUSE_SETMODE _IOW('M', 3, old_mousemode_t)
typedef struct old_mousehw {
int buttons;
int iftype;
int type;
int hwid;
} old_mousehw_t;
typedef struct old_mousemode {
int protocol;
int rate;
int resolution;
int accelfactor;
} old_mousemode_t;
/* packet formatting function */
typedef int packetfunc_t __P((struct psm_softc *, unsigned char *,
int *, int, mousestatus_t *));
/* function prototypes */
static void psmidentify __P((driver_t *, device_t));
static int psmprobe __P((device_t));
static int psmattach __P((device_t));
static int psmdetach __P((device_t));
static int psmresume __P((device_t));
static d_open_t psmopen;
static d_close_t psmclose;
static d_read_t psmread;
static d_ioctl_t psmioctl;
static d_poll_t psmpoll;
static int enable_aux_dev __P((KBDC));
static int disable_aux_dev __P((KBDC));
static int get_mouse_status __P((KBDC, int *, int, int));
static int get_aux_id __P((KBDC));
static int set_mouse_sampling_rate __P((KBDC, int));
static int set_mouse_scaling __P((KBDC, int));
static int set_mouse_resolution __P((KBDC, int));
static int set_mouse_mode __P((KBDC));
static int get_mouse_buttons __P((KBDC));
static int is_a_mouse __P((int));
static void recover_from_error __P((KBDC));
static int restore_controller __P((KBDC, int));
static int doinitialize __P((struct psm_softc *, mousemode_t *));
static int doopen __P((struct psm_softc *, int));
static int reinitialize __P((struct psm_softc *, int));
static char *model_name __P((int));
static void psmintr __P((void *));
static void psmtimeout __P((void *));
/* vendor specific features */
typedef int probefunc_t __P((struct psm_softc *));
static int mouse_id_proc1 __P((KBDC, int, int, int *));
static int mouse_ext_command __P((KBDC, int));
static probefunc_t enable_groller;
static probefunc_t enable_gmouse;
static probefunc_t enable_aglide;
static probefunc_t enable_kmouse;
static probefunc_t enable_msexplorer;
static probefunc_t enable_msintelli;
static probefunc_t enable_4dmouse;
static probefunc_t enable_4dplus;
static probefunc_t enable_mmanplus;
static probefunc_t enable_versapad;
static int tame_mouse __P((struct psm_softc *, mousestatus_t *, unsigned char *));
static struct {
int model;
unsigned char syncmask;
int packetsize;
probefunc_t *probefunc;
} vendortype[] = {
/*
* WARNING: the order of probe is very important. Don't mess it
* unless you know what you are doing.
*/
{ MOUSE_MODEL_NET, /* Genius NetMouse */
0x08, MOUSE_PS2INTELLI_PACKETSIZE, enable_gmouse, },
{ MOUSE_MODEL_NETSCROLL, /* Genius NetScroll */
0xc8, 6, enable_groller, },
{ MOUSE_MODEL_MOUSEMANPLUS, /* Logitech MouseMan+ */
0x08, MOUSE_PS2_PACKETSIZE, enable_mmanplus, },
{ MOUSE_MODEL_EXPLORER, /* Microsoft IntelliMouse Explorer */
0x08, MOUSE_PS2INTELLI_PACKETSIZE, enable_msexplorer, },
{ MOUSE_MODEL_4D, /* A4 Tech 4D Mouse */
0x08, MOUSE_4D_PACKETSIZE, enable_4dmouse, },
{ MOUSE_MODEL_4DPLUS, /* A4 Tech 4D+ Mouse */
0xc8, MOUSE_4DPLUS_PACKETSIZE, enable_4dplus, },
{ MOUSE_MODEL_INTELLI, /* Microsoft IntelliMouse */
0x08, MOUSE_PS2INTELLI_PACKETSIZE, enable_msintelli, },
{ MOUSE_MODEL_GLIDEPOINT, /* ALPS GlidePoint */
0xc0, MOUSE_PS2_PACKETSIZE, enable_aglide, },
{ MOUSE_MODEL_THINK, /* Kensignton ThinkingMouse */
0x80, MOUSE_PS2_PACKETSIZE, enable_kmouse, },
{ MOUSE_MODEL_VERSAPAD, /* Interlink electronics VersaPad */
0xe8, MOUSE_PS2VERSA_PACKETSIZE, enable_versapad, },
{ MOUSE_MODEL_GENERIC,
0xc0, MOUSE_PS2_PACKETSIZE, NULL, },
};
#define GENERIC_MOUSE_ENTRY ((sizeof(vendortype) / sizeof(*vendortype)) - 1)
/* device driver declarateion */
static device_method_t psm_methods[] = {
/* Device interface */
DEVMETHOD(device_identify, psmidentify),
DEVMETHOD(device_probe, psmprobe),
DEVMETHOD(device_attach, psmattach),
DEVMETHOD(device_detach, psmdetach),
DEVMETHOD(device_resume, psmresume),
{ 0, 0 }
};
static driver_t psm_driver = {
PSM_DRIVER_NAME,
psm_methods,
sizeof(struct psm_softc),
};
#define CDEV_MAJOR 21
static struct cdevsw psm_cdevsw = {
/* open */ psmopen,
/* close */ psmclose,
/* read */ psmread,
/* write */ nowrite,
/* ioctl */ psmioctl,
/* poll */ psmpoll,
/* mmap */ nommap,
/* strategy */ nostrategy,
/* name */ PSM_DRIVER_NAME,
/* maj */ CDEV_MAJOR,
/* dump */ nodump,
/* psize */ nopsize,
/* flags */ 0,
};
/* debug message level */
static int verbose = PSM_DEBUG;
/* device I/O routines */
static int
enable_aux_dev(KBDC kbdc)
{
int res;
res = send_aux_command(kbdc, PSMC_ENABLE_DEV);
if (verbose >= 2)
log(LOG_DEBUG, "psm: ENABLE_DEV return code:%04x\n", res);
return (res == PSM_ACK);
}
static int
disable_aux_dev(KBDC kbdc)
{
int res;
res = send_aux_command(kbdc, PSMC_DISABLE_DEV);
if (verbose >= 2)
log(LOG_DEBUG, "psm: DISABLE_DEV return code:%04x\n", res);
return (res == PSM_ACK);
}
static int
get_mouse_status(KBDC kbdc, int *status, int flag, int len)
{
int cmd;
int res;
int i;
switch (flag) {
case 0:
default:
cmd = PSMC_SEND_DEV_STATUS;
break;
case 1:
cmd = PSMC_SEND_DEV_DATA;
break;
}
empty_aux_buffer(kbdc, 5);
res = send_aux_command(kbdc, cmd);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SEND_AUX_DEV_%s return code:%04x\n",
(flag == 1) ? "DATA" : "STATUS", res);
if (res != PSM_ACK)
return 0;
for (i = 0; i < len; ++i) {
status[i] = read_aux_data(kbdc);
if (status[i] < 0)
break;
}
if (verbose) {
log(LOG_DEBUG, "psm: %s %02x %02x %02x\n",
(flag == 1) ? "data" : "status", status[0], status[1], status[2]);
}
return i;
}
static int
get_aux_id(KBDC kbdc)
{
int res;
int id;
empty_aux_buffer(kbdc, 5);
res = send_aux_command(kbdc, PSMC_SEND_DEV_ID);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SEND_DEV_ID return code:%04x\n", res);
if (res != PSM_ACK)
return (-1);
/* 10ms delay */
DELAY(10000);
id = read_aux_data(kbdc);
if (verbose >= 2)
log(LOG_DEBUG, "psm: device ID: %04x\n", id);
return id;
}
static int
set_mouse_sampling_rate(KBDC kbdc, int rate)
{
int res;
res = send_aux_command_and_data(kbdc, PSMC_SET_SAMPLING_RATE, rate);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SET_SAMPLING_RATE (%d) %04x\n", rate, res);
return ((res == PSM_ACK) ? rate : -1);
}
static int
set_mouse_scaling(KBDC kbdc, int scale)
{
int res;
switch (scale) {
case 1:
default:
scale = PSMC_SET_SCALING11;
break;
case 2:
scale = PSMC_SET_SCALING21;
break;
}
res = send_aux_command(kbdc, scale);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SET_SCALING%s return code:%04x\n",
(scale == PSMC_SET_SCALING21) ? "21" : "11", res);
return (res == PSM_ACK);
}
/* `val' must be 0 through PSMD_MAX_RESOLUTION */
static int
set_mouse_resolution(KBDC kbdc, int val)
{
int res;
res = send_aux_command_and_data(kbdc, PSMC_SET_RESOLUTION, val);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SET_RESOLUTION (%d) %04x\n", val, res);
return ((res == PSM_ACK) ? val : -1);
}
/*
* NOTE: once `set_mouse_mode()' is called, the mouse device must be
* re-enabled by calling `enable_aux_dev()'
*/
static int
set_mouse_mode(KBDC kbdc)
{
int res;
res = send_aux_command(kbdc, PSMC_SET_STREAM_MODE);
if (verbose >= 2)
log(LOG_DEBUG, "psm: SET_STREAM_MODE return code:%04x\n", res);
return (res == PSM_ACK);
}
static int
get_mouse_buttons(KBDC kbdc)
{
int c = 2; /* assume two buttons by default */
int status[3];
/*
* NOTE: a special sequence to obtain Logitech Mouse specific
* information: set resolution to 25 ppi, set scaling to 1:1, set
* scaling to 1:1, set scaling to 1:1. Then the second byte of the
* mouse status bytes is the number of available buttons.
* Some manufactures also support this sequence.
*/
if (set_mouse_resolution(kbdc, PSMD_RES_LOW) != PSMD_RES_LOW)
return c;
if (set_mouse_scaling(kbdc, 1) && set_mouse_scaling(kbdc, 1)
&& set_mouse_scaling(kbdc, 1)
&& (get_mouse_status(kbdc, status, 0, 3) >= 3)) {
if (status[1] != 0)
return status[1];
}
return c;
}
/* misc subroutines */
/*
* Someday, I will get the complete list of valid pointing devices and
* their IDs... XXX
*/
static int
is_a_mouse(int id)
{
#if 0
static int valid_ids[] = {
PSM_MOUSE_ID, /* mouse */
PSM_BALLPOINT_ID, /* ballpoint device */
PSM_INTELLI_ID, /* Intellimouse */
PSM_EXPLORER_ID, /* Intellimouse Explorer */
-1 /* end of table */
};
int i;
for (i = 0; valid_ids[i] >= 0; ++i)
if (valid_ids[i] == id)
return TRUE;
return FALSE;
#else
return TRUE;
#endif
}
static char *
model_name(int model)
{
static struct {
int model_code;
char *model_name;
} models[] = {
{ MOUSE_MODEL_NETSCROLL, "NetScroll" },
{ MOUSE_MODEL_NET, "NetMouse/NetScroll Optical" },
{ MOUSE_MODEL_GLIDEPOINT, "GlidePoint" },
{ MOUSE_MODEL_THINK, "ThinkingMouse" },
{ MOUSE_MODEL_INTELLI, "IntelliMouse" },
{ MOUSE_MODEL_MOUSEMANPLUS, "MouseMan+" },
{ MOUSE_MODEL_VERSAPAD, "VersaPad" },
{ MOUSE_MODEL_EXPLORER, "IntelliMouse Explorer" },
{ MOUSE_MODEL_4D, "4D Mouse" },
{ MOUSE_MODEL_4DPLUS, "4D+ Mouse" },
{ MOUSE_MODEL_GENERIC, "Generic PS/2 mouse" },
{ MOUSE_MODEL_UNKNOWN, NULL },
};
int i;
for (i = 0; models[i].model_code != MOUSE_MODEL_UNKNOWN; ++i) {
if (models[i].model_code == model)
return models[i].model_name;
}
return "Unknown";
}
static void
recover_from_error(KBDC kbdc)
{
/* discard anything left in the output buffer */
empty_both_buffers(kbdc, 10);
#if 0
/*
* NOTE: KBDC_RESET_KBD may not restore the communication between the
* keyboard and the controller.
*/
reset_kbd(kbdc);
#else
/*
* NOTE: somehow diagnostic and keyboard port test commands bring the
* keyboard back.
*/
if (!test_controller(kbdc))
log(LOG_ERR, "psm: keyboard controller failed.\n");
/* if there isn't a keyboard in the system, the following error is OK */
if (test_kbd_port(kbdc) != 0) {
if (verbose)
log(LOG_ERR, "psm: keyboard port failed.\n");
}
#endif
}
static int
restore_controller(KBDC kbdc, int command_byte)
{
empty_both_buffers(kbdc, 10);
if (!set_controller_command_byte(kbdc, 0xff, command_byte)) {
log(LOG_ERR, "psm: failed to restore the keyboard controller "
"command byte.\n");
empty_both_buffers(kbdc, 10);
return FALSE;
} else {
empty_both_buffers(kbdc, 10);
return TRUE;
}
}
/*
* Re-initialize the aux port and device. The aux port must be enabled
* and its interrupt must be disabled before calling this routine.
* The aux device will be disabled before returning.
* The keyboard controller must be locked via `kbdc_lock()' before
* calling this routine.
*/
static int
doinitialize(struct psm_softc *sc, mousemode_t *mode)
{
KBDC kbdc = sc->kbdc;
int stat[3];
int i;
switch((i = test_aux_port(kbdc))) {
case 1: /* ignore this error */
case PSM_ACK:
if (verbose)
log(LOG_DEBUG, "psm%d: strange result for test aux port (%d).\n",
sc->unit, i);
/* fall though */
case 0: /* no error */
break;
case -1: /* time out */
default: /* error */
recover_from_error(kbdc);
if (sc->config & PSM_CONFIG_IGNPORTERROR)
break;
log(LOG_ERR, "psm%d: the aux port is not functioning (%d).\n",
sc->unit, i);
return FALSE;
}
if (sc->config & PSM_CONFIG_NORESET) {
/*
* Don't try to reset the pointing device. It may possibly be
* left in the unknown state, though...
*/
} else {
/*
* NOTE: some controllers appears to hang the `keyboard' when
* the aux port doesn't exist and `PSMC_RESET_DEV' is issued.
*/
if (!reset_aux_dev(kbdc)) {
recover_from_error(kbdc);
log(LOG_ERR, "psm%d: failed to reset the aux device.\n", sc->unit);
return FALSE;
}
}
/*
* both the aux port and the aux device is functioning, see
* if the device can be enabled.
*/
if (!enable_aux_dev(kbdc) || !disable_aux_dev(kbdc)) {
log(LOG_ERR, "psm%d: failed to enable the aux device.\n", sc->unit);
return FALSE;
}
empty_both_buffers(kbdc, 10); /* remove stray data if any */
if (sc->config & PSM_CONFIG_NOIDPROBE) {
i = GENERIC_MOUSE_ENTRY;
} else {
/* FIXME: hardware ID, mouse buttons? */
/* other parameters */
for (i = 0; vendortype[i].probefunc != NULL; ++i) {
if ((*vendortype[i].probefunc)(sc)) {
if (verbose >= 2)
log(LOG_ERR, "psm%d: found %s\n",
sc->unit, model_name(vendortype[i].model));
break;
}
}
}
sc->hw.model = vendortype[i].model;
sc->mode.packetsize = vendortype[i].packetsize;
/* set mouse parameters */
if (mode != (mousemode_t *)NULL) {
if (mode->rate > 0)
mode->rate = set_mouse_sampling_rate(kbdc, mode->rate);
if (mode->resolution >= 0)
mode->resolution = set_mouse_resolution(kbdc, mode->resolution);
set_mouse_scaling(kbdc, 1);
set_mouse_mode(kbdc);
}
/* request a data packet and extract sync. bits */
if (get_mouse_status(kbdc, stat, 1, 3) < 3) {
log(LOG_DEBUG, "psm%d: failed to get data (doinitialize).\n",
sc->unit);
sc->mode.syncmask[0] = 0;
} else {
sc->mode.syncmask[1] = stat[0] & sc->mode.syncmask[0]; /* syncbits */
/* the NetScroll Mouse will send three more bytes... Ignore them */
empty_aux_buffer(kbdc, 5);
}
/* just check the status of the mouse */
if (get_mouse_status(kbdc, stat, 0, 3) < 3)
log(LOG_DEBUG, "psm%d: failed to get status (doinitialize).\n",
sc->unit);
return TRUE;
}
static int
doopen(struct psm_softc *sc, int command_byte)
{
int stat[3];
/* enable the mouse device */
if (!enable_aux_dev(sc->kbdc)) {
/* MOUSE ERROR: failed to enable the mouse because:
* 1) the mouse is faulty,
* 2) the mouse has been removed(!?)
* In the latter case, the keyboard may have hung, and need
* recovery procedure...
*/
recover_from_error(sc->kbdc);
#if 0
/* FIXME: we could reset the mouse here and try to enable
* it again. But it will take long time and it's not a good
* idea to disable the keyboard that long...
*/
if (!doinitialize(sc, &sc->mode) || !enable_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
#else
{
#endif
restore_controller(sc->kbdc, command_byte);
/* mark this device is no longer available */
sc->state &= ~PSM_VALID;
log(LOG_ERR, "psm%d: failed to enable the device (doopen).\n",
sc->unit);
return (EIO);
}
}
if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3)
log(LOG_DEBUG, "psm%d: failed to get status (doopen).\n", sc->unit);
/* enable the aux port and interrupt */
if (!set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
(command_byte & KBD_KBD_CONTROL_BITS)
| KBD_ENABLE_AUX_PORT | KBD_ENABLE_AUX_INT)) {
/* CONTROLLER ERROR */
disable_aux_dev(sc->kbdc);
restore_controller(sc->kbdc, command_byte);
log(LOG_ERR, "psm%d: failed to enable the aux interrupt (doopen).\n",
sc->unit);
return (EIO);
}
/* start the watchdog timer */
sc->watchdog = FALSE;
sc->callout = timeout(psmtimeout, (void *)(uintptr_t)sc, hz*2);
return (0);
}
static int
reinitialize(struct psm_softc *sc, int doinit)
{
int err;
int c;
int s;
/* don't let anybody mess with the aux device */
if (!kbdc_lock(sc->kbdc, TRUE))
return (EIO);
s = spltty();
/* block our watchdog timer */
sc->watchdog = FALSE;
untimeout(psmtimeout, (void *)(uintptr_t)sc, sc->callout);
callout_handle_init(&sc->callout);
/* save the current controller command byte */
empty_both_buffers(sc->kbdc, 10);
c = get_controller_command_byte(sc->kbdc);
if (verbose >= 2)
log(LOG_DEBUG, "psm%d: current command byte: %04x (reinitialize).\n",
sc->unit, c);
/* enable the aux port but disable the aux interrupt and the keyboard */
if ((c == -1) || !set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* CONTROLLER ERROR */
splx(s);
kbdc_lock(sc->kbdc, FALSE);
log(LOG_ERR, "psm%d: unable to set the command byte (reinitialize).\n",
sc->unit);
return (EIO);
}
/* flush any data */
if (sc->state & PSM_VALID) {
disable_aux_dev(sc->kbdc); /* this may fail; but never mind... */
empty_aux_buffer(sc->kbdc, 10);
}
sc->inputbytes = 0;
sc->syncerrors = 0;
/* try to detect the aux device; are you still there? */
err = 0;
if (doinit) {
if (doinitialize(sc, &sc->mode)) {
/* yes */
sc->state |= PSM_VALID;
} else {
/* the device has gone! */
restore_controller(sc->kbdc, c);
sc->state &= ~PSM_VALID;
log(LOG_ERR, "psm%d: the aux device has gone! (reinitialize).\n",
sc->unit);
err = ENXIO;
}
}
splx(s);
/* restore the driver state */
if ((sc->state & PSM_OPEN) && (err == 0)) {
/* enable the aux device and the port again */
err = doopen(sc, c);
if (err != 0)
log(LOG_ERR, "psm%d: failed to enable the device (reinitialize).\n",
sc->unit);
} else {
/* restore the keyboard port and disable the aux port */
if (!set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
(c & KBD_KBD_CONTROL_BITS)
| KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* CONTROLLER ERROR */
log(LOG_ERR, "psm%d: failed to disable the aux port (reinitialize).\n",
sc->unit);
err = EIO;
}
}
kbdc_lock(sc->kbdc, FALSE);
return (err);
}
/* psm driver entry points */
static void
psmidentify(driver_t *driver, device_t parent)
{
device_t psmc;
device_t psm;
u_long irq;
int unit;
unit = device_get_unit(parent);
/* always add at least one child */
psm = BUS_ADD_CHILD(parent, KBDC_RID_AUX, driver->name, unit);
if (psm == NULL)
return;
irq = bus_get_resource_start(psm, SYS_RES_IRQ, KBDC_RID_AUX);
if (irq > 0)
return;
/*
* If the PS/2 mouse device has already been reported by ACPI or
* PnP BIOS, obtain the IRQ resource from it.
* (See psmcpnp_attach() below.)
*/
psmc = device_find_child(device_get_parent(parent),
PSMCPNP_DRIVER_NAME, unit);
if (psmc == NULL)
return;
irq = bus_get_resource_start(psmc, SYS_RES_IRQ, 0);
if (irq <= 0)
return;
bus_set_resource(psm, SYS_RES_IRQ, KBDC_RID_AUX, irq, 1);
}
#define endprobe(v) { if (bootverbose) \
--verbose; \
kbdc_set_device_mask(sc->kbdc, mask); \
kbdc_lock(sc->kbdc, FALSE); \
return (v); \
}
static int
psmprobe(device_t dev)
{
int unit = device_get_unit(dev);
struct psm_softc *sc = device_get_softc(dev);
int stat[3];
int command_byte;
int mask;
int rid;
int i;
#if 0
kbdc_debug(TRUE);
#endif
/* see if IRQ is available */
rid = KBDC_RID_AUX;
sc->intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->intr == NULL) {
if (bootverbose)
device_printf(dev, "unable to allocate IRQ\n");
return (ENXIO);
}
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
sc->unit = unit;
sc->kbdc = atkbdc_open(device_get_unit(device_get_parent(dev)));
sc->config = device_get_flags(dev) & PSM_CONFIG_FLAGS;
/* XXX: for backward compatibility */
#if defined(PSM_HOOKRESUME) || defined(PSM_HOOKAPM)
sc->config |=
#ifdef PSM_RESETAFTERSUSPEND
PSM_CONFIG_HOOKRESUME | PSM_CONFIG_INITAFTERSUSPEND;
#else
PSM_CONFIG_HOOKRESUME;
#endif
#endif /* PSM_HOOKRESUME | PSM_HOOKAPM */
sc->flags = 0;
if (bootverbose)
++verbose;
device_set_desc(dev, "PS/2 Mouse");
if (!kbdc_lock(sc->kbdc, TRUE)) {
printf("psm%d: unable to lock the controller.\n", unit);
if (bootverbose)
--verbose;
return (ENXIO);
}
/*
* NOTE: two bits in the command byte controls the operation of the
* aux port (mouse port): the aux port disable bit (bit 5) and the aux
* port interrupt (IRQ 12) enable bit (bit 2).
*/
/* discard anything left after the keyboard initialization */
empty_both_buffers(sc->kbdc, 10);
/* save the current command byte; it will be used later */
mask = kbdc_get_device_mask(sc->kbdc) & ~KBD_AUX_CONTROL_BITS;
command_byte = get_controller_command_byte(sc->kbdc);
if (verbose)
printf("psm%d: current command byte:%04x\n", unit, command_byte);
if (command_byte == -1) {
/* CONTROLLER ERROR */
printf("psm%d: unable to get the current command byte value.\n",
unit);
endprobe(ENXIO);
}
/*
* disable the keyboard port while probing the aux port, which must be
* enabled during this routine
*/
if (!set_controller_command_byte(sc->kbdc,
KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS,
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/*
* this is CONTROLLER ERROR; I don't know how to recover
* from this error...
*/
restore_controller(sc->kbdc, command_byte);
printf("psm%d: unable to set the command byte.\n", unit);
endprobe(ENXIO);
}
write_controller_command(sc->kbdc, KBDC_ENABLE_AUX_PORT);
/*
* NOTE: `test_aux_port()' is designed to return with zero if the aux
* port exists and is functioning. However, some controllers appears
* to respond with zero even when the aux port doesn't exist. (It may
* be that this is only the case when the controller DOES have the aux
* port but the port is not wired on the motherboard.) The keyboard
* controllers without the port, such as the original AT, are
* supporsed to return with an error code or simply time out. In any
* case, we have to continue probing the port even when the controller
* passes this test.
*
* XXX: some controllers erroneously return the error code 1 when
* it has the perfectly functional aux port. We have to ignore this
* error code. Even if the controller HAS error with the aux port,
* it will be detected later...
* XXX: another incompatible controller returns PSM_ACK (0xfa)...
*/
switch ((i = test_aux_port(sc->kbdc))) {
case 1: /* ignore this error */
case PSM_ACK:
if (verbose)
printf("psm%d: strange result for test aux port (%d).\n",
unit, i);
/* fall though */
case 0: /* no error */
break;
case -1: /* time out */
default: /* error */
recover_from_error(sc->kbdc);
if (sc->config & PSM_CONFIG_IGNPORTERROR)
break;
restore_controller(sc->kbdc, command_byte);
if (verbose)
printf("psm%d: the aux port is not functioning (%d).\n",
unit, i);
endprobe(ENXIO);
}
if (sc->config & PSM_CONFIG_NORESET) {
/*
* Don't try to reset the pointing device. It may possibly be
* left in the unknown state, though...
*/
} else {
/*
* NOTE: some controllers appears to hang the `keyboard' when the aux
* port doesn't exist and `PSMC_RESET_DEV' is issued.
*/
if (!reset_aux_dev(sc->kbdc)) {
recover_from_error(sc->kbdc);
restore_controller(sc->kbdc, command_byte);
if (verbose)
printf("psm%d: failed to reset the aux device.\n", unit);
endprobe(ENXIO);
}
}
/*
* both the aux port and the aux device is functioning, see if the
* device can be enabled. NOTE: when enabled, the device will start
* sending data; we shall immediately disable the device once we know
* the device can be enabled.
*/
if (!enable_aux_dev(sc->kbdc) || !disable_aux_dev(sc->kbdc)) {
/* MOUSE ERROR */
recover_from_error(sc->kbdc);
restore_controller(sc->kbdc, command_byte);
if (verbose)
printf("psm%d: failed to enable the aux device.\n", unit);
endprobe(ENXIO);
}
/* save the default values after reset */
if (get_mouse_status(sc->kbdc, stat, 0, 3) >= 3) {
sc->dflt_mode.rate = sc->mode.rate = stat[2];
sc->dflt_mode.resolution = sc->mode.resolution = stat[1];
} else {
sc->dflt_mode.rate = sc->mode.rate = -1;
sc->dflt_mode.resolution = sc->mode.resolution = -1;
}
/* hardware information */
sc->hw.iftype = MOUSE_IF_PS2;
/* verify the device is a mouse */
sc->hw.hwid = get_aux_id(sc->kbdc);
if (!is_a_mouse(sc->hw.hwid)) {
restore_controller(sc->kbdc, command_byte);
if (verbose)
printf("psm%d: unknown device type (%d).\n", unit, sc->hw.hwid);
endprobe(ENXIO);
}
switch (sc->hw.hwid) {
case PSM_BALLPOINT_ID:
sc->hw.type = MOUSE_TRACKBALL;
break;
case PSM_MOUSE_ID:
case PSM_INTELLI_ID:
case PSM_EXPLORER_ID:
case PSM_4DMOUSE_ID:
case PSM_4DPLUS_ID:
sc->hw.type = MOUSE_MOUSE;
break;
default:
sc->hw.type = MOUSE_UNKNOWN;
break;
}
if (sc->config & PSM_CONFIG_NOIDPROBE) {
sc->hw.buttons = 2;
i = GENERIC_MOUSE_ENTRY;
} else {
/* # of buttons */
sc->hw.buttons = get_mouse_buttons(sc->kbdc);
/* other parameters */
for (i = 0; vendortype[i].probefunc != NULL; ++i) {
if ((*vendortype[i].probefunc)(sc)) {
if (verbose >= 2)
printf("psm%d: found %s\n",
unit, model_name(vendortype[i].model));
break;
}
}
}
sc->hw.model = vendortype[i].model;
sc->dflt_mode.level = PSM_LEVEL_BASE;
sc->dflt_mode.packetsize = MOUSE_PS2_PACKETSIZE;
sc->dflt_mode.accelfactor = (sc->config & PSM_CONFIG_ACCEL) >> 4;
if (sc->config & PSM_CONFIG_NOCHECKSYNC)
sc->dflt_mode.syncmask[0] = 0;
else
sc->dflt_mode.syncmask[0] = vendortype[i].syncmask;
if (sc->config & PSM_CONFIG_FORCETAP)
sc->mode.syncmask[0] &= ~MOUSE_PS2_TAP;
sc->dflt_mode.syncmask[1] = 0; /* syncbits */
sc->mode = sc->dflt_mode;
sc->mode.packetsize = vendortype[i].packetsize;
/* set mouse parameters */
#if 0
/*
* A version of Logitech FirstMouse+ won't report wheel movement,
* if SET_DEFAULTS is sent... Don't use this command.
* This fix was found by Takashi Nishida.
*/
i = send_aux_command(sc->kbdc, PSMC_SET_DEFAULTS);
if (verbose >= 2)
printf("psm%d: SET_DEFAULTS return code:%04x\n", unit, i);
#endif
if (sc->config & PSM_CONFIG_RESOLUTION) {
sc->mode.resolution
= set_mouse_resolution(sc->kbdc,
(sc->config & PSM_CONFIG_RESOLUTION) - 1);
} else if (sc->mode.resolution >= 0) {
sc->mode.resolution
= set_mouse_resolution(sc->kbdc, sc->dflt_mode.resolution);
}
if (sc->mode.rate > 0) {
sc->mode.rate = set_mouse_sampling_rate(sc->kbdc, sc->dflt_mode.rate);
}
set_mouse_scaling(sc->kbdc, 1);
/* request a data packet and extract sync. bits */
if (get_mouse_status(sc->kbdc, stat, 1, 3) < 3) {
printf("psm%d: failed to get data.\n", unit);
sc->mode.syncmask[0] = 0;
} else {
sc->mode.syncmask[1] = stat[0] & sc->mode.syncmask[0]; /* syncbits */
/* the NetScroll Mouse will send three more bytes... Ignore them */
empty_aux_buffer(sc->kbdc, 5);
}
/* just check the status of the mouse */
/*
* NOTE: XXX there are some arcane controller/mouse combinations out
* there, which hung the controller unless there is data transmission
* after ACK from the mouse.
*/
if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3) {
printf("psm%d: failed to get status.\n", unit);
} else {
/*
* When in its native mode, some mice operate with different
* default parameters than in the PS/2 compatible mode.
*/
sc->dflt_mode.rate = sc->mode.rate = stat[2];
sc->dflt_mode.resolution = sc->mode.resolution = stat[1];
}
/* disable the aux port for now... */
if (!set_controller_command_byte(sc->kbdc,
KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS,
(command_byte & KBD_KBD_CONTROL_BITS)
| KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/*
* this is CONTROLLER ERROR; I don't know the proper way to
* recover from this error...
*/
restore_controller(sc->kbdc, command_byte);
printf("psm%d: unable to set the command byte.\n", unit);
endprobe(ENXIO);
}
/* done */
kbdc_set_device_mask(sc->kbdc, mask | KBD_AUX_CONTROL_BITS);
kbdc_lock(sc->kbdc, FALSE);
return (0);
}
static int
psmattach(device_t dev)
{
int unit = device_get_unit(dev);
struct psm_softc *sc = device_get_softc(dev);
int error;
int rid;
if (sc == NULL) /* shouldn't happen */
return (ENXIO);
/* Setup initial state */
sc->state = PSM_VALID;
callout_handle_init(&sc->callout);
/* Setup our interrupt handler */
rid = KBDC_RID_AUX;
sc->intr = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE | RF_ACTIVE);
if (sc->intr == NULL)
return (ENXIO);
error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, psmintr, sc, &sc->ih);
if (error) {
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
return (error);
}
/* Done */
sc->dev = make_dev(&psm_cdevsw, PSM_MKMINOR(unit, FALSE), 0, 0, 0666,
"psm%d", unit);
sc->bdev = make_dev(&psm_cdevsw, PSM_MKMINOR(unit, TRUE), 0, 0, 0666,
"bpsm%d", unit);
if (!verbose) {
printf("psm%d: model %s, device ID %d\n",
unit, model_name(sc->hw.model), sc->hw.hwid & 0x00ff);
} else {
printf("psm%d: model %s, device ID %d-%02x, %d buttons\n",
unit, model_name(sc->hw.model),
sc->hw.hwid & 0x00ff, sc->hw.hwid >> 8, sc->hw.buttons);
printf("psm%d: config:%08x, flags:%08x, packet size:%d\n",
unit, sc->config, sc->flags, sc->mode.packetsize);
printf("psm%d: syncmask:%02x, syncbits:%02x\n",
unit, sc->mode.syncmask[0], sc->mode.syncmask[1]);
}
if (bootverbose)
--verbose;
return (0);
}
static int
psmdetach(device_t dev)
{
struct psm_softc *sc;
int rid;
sc = device_get_softc(dev);
if (sc->state & PSM_OPEN)
return EBUSY;
rid = KBDC_RID_AUX;
bus_teardown_intr(dev, sc->intr, sc->ih);
bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr);
destroy_dev(sc->dev);
destroy_dev(sc->bdev);
return 0;
}
static int
psmopen(dev_t dev, int flag, int fmt, struct thread *td)
{
int unit = PSM_UNIT(dev);
struct psm_softc *sc;
int command_byte;
int err;
int s;
/* Get device data */
sc = PSM_SOFTC(unit);
if ((sc == NULL) || (sc->state & PSM_VALID) == 0)
/* the device is no longer valid/functioning */
return (ENXIO);
/* Disallow multiple opens */
if (sc->state & PSM_OPEN)
return (EBUSY);
device_busy(devclass_get_device(psm_devclass, unit));
/* Initialize state */
sc->mode.level = sc->dflt_mode.level;
sc->mode.protocol = sc->dflt_mode.protocol;
sc->watchdog = FALSE;
/* flush the event queue */
sc->queue.count = 0;
sc->queue.head = 0;
sc->queue.tail = 0;
sc->status.flags = 0;
sc->status.button = 0;
sc->status.obutton = 0;
sc->status.dx = 0;
sc->status.dy = 0;
sc->status.dz = 0;
sc->button = 0;
/* empty input buffer */
bzero(sc->ipacket, sizeof(sc->ipacket));
sc->inputbytes = 0;
sc->syncerrors = 0;
/* don't let timeout routines in the keyboard driver to poll the kbdc */
if (!kbdc_lock(sc->kbdc, TRUE))
return (EIO);
/* save the current controller command byte */
s = spltty();
command_byte = get_controller_command_byte(sc->kbdc);
/* enable the aux port and temporalily disable the keyboard */
if ((command_byte == -1)
|| !set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* CONTROLLER ERROR; do you know how to get out of this? */
kbdc_lock(sc->kbdc, FALSE);
splx(s);
log(LOG_ERR, "psm%d: unable to set the command byte (psmopen).\n",
unit);
return (EIO);
}
/*
* Now that the keyboard controller is told not to generate
* the keyboard and mouse interrupts, call `splx()' to allow
* the other tty interrupts. The clock interrupt may also occur,
* but timeout routines will be blocked by the poll flag set
* via `kbdc_lock()'
*/
splx(s);
/* enable the mouse device */
err = doopen(sc, command_byte);
/* done */
if (err == 0)
sc->state |= PSM_OPEN;
kbdc_lock(sc->kbdc, FALSE);
return (err);
}
static int
psmclose(dev_t dev, int flag, int fmt, struct thread *td)
{
int unit = PSM_UNIT(dev);
struct psm_softc *sc = PSM_SOFTC(unit);
int stat[3];
int command_byte;
int s;
/* don't let timeout routines in the keyboard driver to poll the kbdc */
if (!kbdc_lock(sc->kbdc, TRUE))
return (EIO);
/* save the current controller command byte */
s = spltty();
command_byte = get_controller_command_byte(sc->kbdc);
if (command_byte == -1) {
kbdc_lock(sc->kbdc, FALSE);
splx(s);
return (EIO);
}
/* disable the aux interrupt and temporalily disable the keyboard */
if (!set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
log(LOG_ERR, "psm%d: failed to disable the aux int (psmclose).\n",
unit);
/* CONTROLLER ERROR;
* NOTE: we shall force our way through. Because the only
* ill effect we shall see is that we may not be able
* to read ACK from the mouse, and it doesn't matter much
* so long as the mouse will accept the DISABLE command.
*/
}
splx(s);
/* stop the watchdog timer */
untimeout(psmtimeout, (void *)(uintptr_t)sc, sc->callout);
callout_handle_init(&sc->callout);
/* remove anything left in the output buffer */
empty_aux_buffer(sc->kbdc, 10);
/* disable the aux device, port and interrupt */
if (sc->state & PSM_VALID) {
if (!disable_aux_dev(sc->kbdc)) {
/* MOUSE ERROR;
* NOTE: we don't return error and continue, pretending
* we have successfully disabled the device. It's OK because
* the interrupt routine will discard any data from the mouse
* hereafter.
*/
log(LOG_ERR, "psm%d: failed to disable the device (psmclose).\n",
unit);
}
if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3)
log(LOG_DEBUG, "psm%d: failed to get status (psmclose).\n",
unit);
}
if (!set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
(command_byte & KBD_KBD_CONTROL_BITS)
| KBD_DISABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* CONTROLLER ERROR;
* we shall ignore this error; see the above comment.
*/
log(LOG_ERR, "psm%d: failed to disable the aux port (psmclose).\n",
unit);
}
/* remove anything left in the output buffer */
empty_aux_buffer(sc->kbdc, 10);
/* close is almost always successful */
sc->state &= ~PSM_OPEN;
kbdc_lock(sc->kbdc, FALSE);
device_unbusy(devclass_get_device(psm_devclass, unit));
return (0);
}
static int
tame_mouse(struct psm_softc *sc, mousestatus_t *status, unsigned char *buf)
{
static unsigned char butmapps2[8] = {
0,
MOUSE_PS2_BUTTON1DOWN,
MOUSE_PS2_BUTTON2DOWN,
MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON2DOWN,
MOUSE_PS2_BUTTON3DOWN,
MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON3DOWN,
MOUSE_PS2_BUTTON2DOWN | MOUSE_PS2_BUTTON3DOWN,
MOUSE_PS2_BUTTON1DOWN | MOUSE_PS2_BUTTON2DOWN | MOUSE_PS2_BUTTON3DOWN,
};
static unsigned char butmapmsc[8] = {
MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
MOUSE_MSC_BUTTON2UP | MOUSE_MSC_BUTTON3UP,
MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON3UP,
MOUSE_MSC_BUTTON3UP,
MOUSE_MSC_BUTTON1UP | MOUSE_MSC_BUTTON2UP,
MOUSE_MSC_BUTTON2UP,
MOUSE_MSC_BUTTON1UP,
0,
};
int mapped;
int i;
if (sc->mode.level == PSM_LEVEL_BASE) {
mapped = status->button & ~MOUSE_BUTTON4DOWN;
if (status->button & MOUSE_BUTTON4DOWN)
mapped |= MOUSE_BUTTON1DOWN;
status->button = mapped;
buf[0] = MOUSE_PS2_SYNC | butmapps2[mapped & MOUSE_STDBUTTONS];
i = max(min(status->dx, 255), -256);
if (i < 0)
buf[0] |= MOUSE_PS2_XNEG;
buf[1] = i;
i = max(min(status->dy, 255), -256);
if (i < 0)
buf[0] |= MOUSE_PS2_YNEG;
buf[2] = i;
return MOUSE_PS2_PACKETSIZE;
} else if (sc->mode.level == PSM_LEVEL_STANDARD) {
buf[0] = MOUSE_MSC_SYNC | butmapmsc[status->button & MOUSE_STDBUTTONS];
i = max(min(status->dx, 255), -256);
buf[1] = i >> 1;
buf[3] = i - buf[1];
i = max(min(status->dy, 255), -256);
buf[2] = i >> 1;
buf[4] = i - buf[2];
i = max(min(status->dz, 127), -128);
buf[5] = (i >> 1) & 0x7f;
buf[6] = (i - (i >> 1)) & 0x7f;
buf[7] = (~status->button >> 3) & 0x7f;
return MOUSE_SYS_PACKETSIZE;
}
return sc->inputbytes;;
}
static int
psmread(dev_t dev, struct uio *uio, int flag)
{
register struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev));
unsigned char buf[PSM_SMALLBUFSIZE];
int error = 0;
int s;
int l;
if ((sc->state & PSM_VALID) == 0)
return EIO;
/* block until mouse activity occured */
s = spltty();
while (sc->queue.count <= 0) {
if (PSM_NBLOCKIO(dev)) {
splx(s);
return EWOULDBLOCK;
}
sc->state |= PSM_ASLP;
error = tsleep((caddr_t) sc, PZERO | PCATCH, "psmrea", 0);
sc->state &= ~PSM_ASLP;
if (error) {
splx(s);
return error;
} else if ((sc->state & PSM_VALID) == 0) {
/* the device disappeared! */
splx(s);
return EIO;
}
}
splx(s);
/* copy data to the user land */
while ((sc->queue.count > 0) && (uio->uio_resid > 0)) {
s = spltty();
l = min(sc->queue.count, uio->uio_resid);
if (l > sizeof(buf))
l = sizeof(buf);
if (l > sizeof(sc->queue.buf) - sc->queue.head) {
bcopy(&sc->queue.buf[sc->queue.head], &buf[0],
sizeof(sc->queue.buf) - sc->queue.head);
bcopy(&sc->queue.buf[0],
&buf[sizeof(sc->queue.buf) - sc->queue.head],
l - (sizeof(sc->queue.buf) - sc->queue.head));
} else {
bcopy(&sc->queue.buf[sc->queue.head], &buf[0], l);
}
sc->queue.count -= l;
sc->queue.head = (sc->queue.head + l) % sizeof(sc->queue.buf);
splx(s);
error = uiomove(buf, l, uio);
if (error)
break;
}
return error;
}
static int
block_mouse_data(struct psm_softc *sc, int *c)
{
int s;
if (!kbdc_lock(sc->kbdc, TRUE))
return EIO;
s = spltty();
*c = get_controller_command_byte(sc->kbdc);
if ((*c == -1)
|| !set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
KBD_DISABLE_KBD_PORT | KBD_DISABLE_KBD_INT
| KBD_ENABLE_AUX_PORT | KBD_DISABLE_AUX_INT)) {
/* this is CONTROLLER ERROR */
splx(s);
kbdc_lock(sc->kbdc, FALSE);
return EIO;
}
/*
* The device may be in the middle of status data transmission.
* The transmission will be interrupted, thus, incomplete status
* data must be discarded. Although the aux interrupt is disabled
* at the keyboard controller level, at most one aux interrupt
* may have already been pending and a data byte is in the
* output buffer; throw it away. Note that the second argument
* to `empty_aux_buffer()' is zero, so that the call will just
* flush the internal queue.
* `psmintr()' will be invoked after `splx()' if an interrupt is
* pending; it will see no data and returns immediately.
*/
empty_aux_buffer(sc->kbdc, 0); /* flush the queue */
read_aux_data_no_wait(sc->kbdc); /* throw away data if any */
sc->inputbytes = 0;
splx(s);
return 0;
}
static int
unblock_mouse_data(struct psm_softc *sc, int c)
{
int error = 0;
/*
* We may have seen a part of status data during `set_mouse_XXX()'.
* they have been queued; flush it.
*/
empty_aux_buffer(sc->kbdc, 0);
/* restore ports and interrupt */
if (!set_controller_command_byte(sc->kbdc,
kbdc_get_device_mask(sc->kbdc),
c & (KBD_KBD_CONTROL_BITS | KBD_AUX_CONTROL_BITS))) {
/* CONTROLLER ERROR; this is serious, we may have
* been left with the inaccessible keyboard and
* the disabled mouse interrupt.
*/
error = EIO;
}
kbdc_lock(sc->kbdc, FALSE);
return error;
}
static int
psmioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
{
struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev));
mousemode_t mode;
mousestatus_t status;
#if (defined(MOUSE_GETVARS))
mousevar_t *var;
#endif
mousedata_t *data;
int stat[3];
int command_byte;
int error = 0;
int s;
/* Perform IOCTL command */
switch (cmd) {
case OLD_MOUSE_GETHWINFO:
s = spltty();
((old_mousehw_t *)addr)->buttons = sc->hw.buttons;
((old_mousehw_t *)addr)->iftype = sc->hw.iftype;
((old_mousehw_t *)addr)->type = sc->hw.type;
((old_mousehw_t *)addr)->hwid = sc->hw.hwid & 0x00ff;
splx(s);
break;
case MOUSE_GETHWINFO:
s = spltty();
*(mousehw_t *)addr = sc->hw;
if (sc->mode.level == PSM_LEVEL_BASE)
((mousehw_t *)addr)->model = MOUSE_MODEL_GENERIC;
splx(s);
break;
case OLD_MOUSE_GETMODE:
s = spltty();
switch (sc->mode.level) {
case PSM_LEVEL_BASE:
((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2;
break;
case PSM_LEVEL_STANDARD:
((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
break;
case PSM_LEVEL_NATIVE:
((old_mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2;
break;
}
((old_mousemode_t *)addr)->rate = sc->mode.rate;
((old_mousemode_t *)addr)->resolution = sc->mode.resolution;
((old_mousemode_t *)addr)->accelfactor = sc->mode.accelfactor;
splx(s);
break;
case MOUSE_GETMODE:
s = spltty();
*(mousemode_t *)addr = sc->mode;
((mousemode_t *)addr)->resolution =
MOUSE_RES_LOW - sc->mode.resolution;
switch (sc->mode.level) {
case PSM_LEVEL_BASE:
((mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2;
((mousemode_t *)addr)->packetsize = MOUSE_PS2_PACKETSIZE;
break;
case PSM_LEVEL_STANDARD:
((mousemode_t *)addr)->protocol = MOUSE_PROTO_SYSMOUSE;
((mousemode_t *)addr)->packetsize = MOUSE_SYS_PACKETSIZE;
((mousemode_t *)addr)->syncmask[0] = MOUSE_SYS_SYNCMASK;
((mousemode_t *)addr)->syncmask[1] = MOUSE_SYS_SYNC;
break;
case PSM_LEVEL_NATIVE:
/* FIXME: this isn't quite correct... XXX */
((mousemode_t *)addr)->protocol = MOUSE_PROTO_PS2;
break;
}
splx(s);
break;
case OLD_MOUSE_SETMODE:
case MOUSE_SETMODE:
if (cmd == OLD_MOUSE_SETMODE) {
mode.rate = ((old_mousemode_t *)addr)->rate;
/*
* resolution old I/F new I/F
* default 0 0
* low 1 -2
* medium low 2 -3
* medium high 3 -4
* high 4 -5
*/
if (((old_mousemode_t *)addr)->resolution > 0)
mode.resolution = -((old_mousemode_t *)addr)->resolution - 1;
mode.accelfactor = ((old_mousemode_t *)addr)->accelfactor;
mode.level = -1;
} else {
mode = *(mousemode_t *)addr;
}
/* adjust and validate parameters. */
if (mode.rate > UCHAR_MAX)
return EINVAL;
if (mode.rate == 0)
mode.rate = sc->dflt_mode.rate;
else if (mode.rate == -1)
/* don't change the current setting */
;
else if (mode.rate < 0)
return EINVAL;
if (mode.resolution >= UCHAR_MAX)
return EINVAL;
if (mode.resolution >= 200)
mode.resolution = MOUSE_RES_HIGH;
else if (mode.resolution >= 100)
mode.resolution = MOUSE_RES_MEDIUMHIGH;
else if (mode.resolution >= 50)
mode.resolution = MOUSE_RES_MEDIUMLOW;
else if (mode.resolution > 0)
mode.resolution = MOUSE_RES_LOW;
if (mode.resolution == MOUSE_RES_DEFAULT)
mode.resolution = sc->dflt_mode.resolution;
else if (mode.resolution == -1)
/* don't change the current setting */
;
else if (mode.resolution < 0) /* MOUSE_RES_LOW/MEDIUM/HIGH */
mode.resolution = MOUSE_RES_LOW - mode.resolution;
if (mode.level == -1)
/* don't change the current setting */
mode.level = sc->mode.level;
else if ((mode.level < PSM_LEVEL_MIN) || (mode.level > PSM_LEVEL_MAX))
return EINVAL;
if (mode.accelfactor == -1)
/* don't change the current setting */
mode.accelfactor = sc->mode.accelfactor;
else if (mode.accelfactor < 0)
return EINVAL;
/* don't allow anybody to poll the keyboard controller */
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
/* set mouse parameters */
if (mode.rate > 0)
mode.rate = set_mouse_sampling_rate(sc->kbdc, mode.rate);
if (mode.resolution >= 0)
mode.resolution = set_mouse_resolution(sc->kbdc, mode.resolution);
set_mouse_scaling(sc->kbdc, 1);
get_mouse_status(sc->kbdc, stat, 0, 3);
s = spltty();
sc->mode.rate = mode.rate;
sc->mode.resolution = mode.resolution;
sc->mode.accelfactor = mode.accelfactor;
sc->mode.level = mode.level;
splx(s);
unblock_mouse_data(sc, command_byte);
break;
case MOUSE_GETLEVEL:
*(int *)addr = sc->mode.level;
break;
case MOUSE_SETLEVEL:
if ((*(int *)addr < PSM_LEVEL_MIN) || (*(int *)addr > PSM_LEVEL_MAX))
return EINVAL;
sc->mode.level = *(int *)addr;
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;
#if (defined(MOUSE_GETVARS))
case MOUSE_GETVARS:
var = (mousevar_t *)addr;
bzero(var, sizeof(*var));
s = spltty();
var->var[0] = MOUSE_VARS_PS2_SIG;
var->var[1] = sc->config;
var->var[2] = sc->flags;
splx(s);
break;
case MOUSE_SETVARS:
return ENODEV;
#endif /* MOUSE_GETVARS */
case MOUSE_READSTATE:
case MOUSE_READDATA:
data = (mousedata_t *)addr;
if (data->len > sizeof(data->buf)/sizeof(data->buf[0]))
return EINVAL;
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
if ((data->len = get_mouse_status(sc->kbdc, data->buf,
(cmd == MOUSE_READDATA) ? 1 : 0, data->len)) <= 0)
error = EIO;
unblock_mouse_data(sc, command_byte);
break;
#if (defined(MOUSE_SETRESOLUTION))
case MOUSE_SETRESOLUTION:
mode.resolution = *(int *)addr;
if (mode.resolution >= UCHAR_MAX)
return EINVAL;
else if (mode.resolution >= 200)
mode.resolution = MOUSE_RES_HIGH;
else if (mode.resolution >= 100)
mode.resolution = MOUSE_RES_MEDIUMHIGH;
else if (mode.resolution >= 50)
mode.resolution = MOUSE_RES_MEDIUMLOW;
else if (mode.resolution > 0)
mode.resolution = MOUSE_RES_LOW;
if (mode.resolution == MOUSE_RES_DEFAULT)
mode.resolution = sc->dflt_mode.resolution;
else if (mode.resolution == -1)
mode.resolution = sc->mode.resolution;
else if (mode.resolution < 0) /* MOUSE_RES_LOW/MEDIUM/HIGH */
mode.resolution = MOUSE_RES_LOW - mode.resolution;
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
sc->mode.resolution = set_mouse_resolution(sc->kbdc, mode.resolution);
if (sc->mode.resolution != mode.resolution)
error = EIO;
unblock_mouse_data(sc, command_byte);
break;
#endif /* MOUSE_SETRESOLUTION */
#if (defined(MOUSE_SETRATE))
case MOUSE_SETRATE:
mode.rate = *(int *)addr;
if (mode.rate > UCHAR_MAX)
return EINVAL;
if (mode.rate == 0)
mode.rate = sc->dflt_mode.rate;
else if (mode.rate < 0)
mode.rate = sc->mode.rate;
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
sc->mode.rate = set_mouse_sampling_rate(sc->kbdc, mode.rate);
if (sc->mode.rate != mode.rate)
error = EIO;
unblock_mouse_data(sc, command_byte);
break;
#endif /* MOUSE_SETRATE */
#if (defined(MOUSE_SETSCALING))
case MOUSE_SETSCALING:
if ((*(int *)addr <= 0) || (*(int *)addr > 2))
return EINVAL;
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
if (!set_mouse_scaling(sc->kbdc, *(int *)addr))
error = EIO;
unblock_mouse_data(sc, command_byte);
break;
#endif /* MOUSE_SETSCALING */
#if (defined(MOUSE_GETHWID))
case MOUSE_GETHWID:
error = block_mouse_data(sc, &command_byte);
if (error)
return error;
sc->hw.hwid &= ~0x00ff;
sc->hw.hwid |= get_aux_id(sc->kbdc);
*(int *)addr = sc->hw.hwid & 0x00ff;
unblock_mouse_data(sc, command_byte);
break;
#endif /* MOUSE_GETHWID */
default:
return ENOTTY;
}
return error;
}
static void
psmtimeout(void *arg)
{
struct psm_softc *sc;
int s;
sc = (struct psm_softc *)arg;
s = spltty();
if (sc->watchdog && kbdc_lock(sc->kbdc, TRUE)) {
if (verbose >= 4)
log(LOG_DEBUG, "psm%d: lost interrupt?\n", sc->unit);
psmintr(sc);
kbdc_lock(sc->kbdc, FALSE);
}
sc->watchdog = TRUE;
splx(s);
sc->callout = timeout(psmtimeout, (void *)(uintptr_t)sc, hz);
}
static void
psmintr(void *arg)
{
/*
* the table to turn PS/2 mouse button bits (MOUSE_PS2_BUTTON?DOWN)
* into `mousestatus' button bits (MOUSE_BUTTON?DOWN).
*/
static int butmap[8] = {
0,
MOUSE_BUTTON1DOWN,
MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
MOUSE_BUTTON2DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN,
MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON2DOWN | MOUSE_BUTTON3DOWN
};
static int butmap_versapad[8] = {
0,
MOUSE_BUTTON3DOWN,
0,
MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN,
MOUSE_BUTTON1DOWN,
MOUSE_BUTTON1DOWN | MOUSE_BUTTON3DOWN
};
register struct psm_softc *sc = arg;
mousestatus_t ms;
struct timeval tv;
int x, y, z;
int c;
int l;
int x0, y0;
/* read until there is nothing to read */
while((c = read_aux_data_no_wait(sc->kbdc)) != -1) {
/* discard the byte if the device is not open */
if ((sc->state & PSM_OPEN) == 0)
continue;
getmicrouptime(&tv);
if ((sc->inputbytes > 0) && timevalcmp(&tv, &sc->inputtimeout, >)) {
log(LOG_DEBUG, "psmintr: delay too long; resetting byte count\n");
sc->inputbytes = 0;
sc->syncerrors = 0;
}
sc->inputtimeout.tv_sec = PSM_INPUT_TIMEOUT/1000000;
sc->inputtimeout.tv_usec = PSM_INPUT_TIMEOUT%1000000;
timevaladd(&sc->inputtimeout, &tv);
sc->ipacket[sc->inputbytes++] = c;
if (sc->inputbytes < sc->mode.packetsize)
continue;
#if 0
log(LOG_DEBUG, "psmintr: %02x %02x %02x %02x %02x %02x\n",
sc->ipacket[0], sc->ipacket[1], sc->ipacket[2],
sc->ipacket[3], sc->ipacket[4], sc->ipacket[5]);
#endif
c = sc->ipacket[0];
if ((c & sc->mode.syncmask[0]) != sc->mode.syncmask[1]) {
log(LOG_DEBUG, "psmintr: out of sync (%04x != %04x).\n",
c & sc->mode.syncmask[0], sc->mode.syncmask[1]);
++sc->syncerrors;
if (sc->syncerrors < sc->mode.packetsize) {
log(LOG_DEBUG, "psmintr: discard a byte (%d).\n", sc->syncerrors);
--sc->inputbytes;
bcopy(&sc->ipacket[1], &sc->ipacket[0], sc->inputbytes);
} else if (sc->syncerrors == sc->mode.packetsize) {
log(LOG_DEBUG, "psmintr: re-enable the mouse.\n");
sc->inputbytes = 0;
disable_aux_dev(sc->kbdc);
enable_aux_dev(sc->kbdc);
} else if (sc->syncerrors < PSM_SYNCERR_THRESHOLD1) {
log(LOG_DEBUG, "psmintr: discard a byte (%d).\n", sc->syncerrors);
--sc->inputbytes;
bcopy(&sc->ipacket[1], &sc->ipacket[0], sc->inputbytes);
} else if (sc->syncerrors >= PSM_SYNCERR_THRESHOLD1) {
log(LOG_DEBUG, "psmintr: reset the mouse.\n");
reinitialize(sc, TRUE);
}
continue;
}
/*
* A kludge for Kensington device!
* The MSB of the horizontal count appears to be stored in
* a strange place.
*/
if (sc->hw.model == MOUSE_MODEL_THINK)
sc->ipacket[1] |= (c & MOUSE_PS2_XOVERFLOW) ? 0x80 : 0;
/* ignore the overflow bits... */
x = (c & MOUSE_PS2_XNEG) ? sc->ipacket[1] - 256 : sc->ipacket[1];
y = (c & MOUSE_PS2_YNEG) ? sc->ipacket[2] - 256 : sc->ipacket[2];
z = 0;
ms.obutton = sc->button; /* previous button state */
ms.button = butmap[c & MOUSE_PS2_BUTTONS];
/* `tapping' action */
if (sc->config & PSM_CONFIG_FORCETAP)
ms.button |= ((c & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
switch (sc->hw.model) {
case MOUSE_MODEL_EXPLORER:
/*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 1: oy ox sy sx 1 M R L
* byte 2: x x x x x x x x
* byte 3: y y y y y y y y
* byte 4: * * S2 S1 s d2 d1 d0
*
* L, M, R, S1, S2: left, middle, right and side buttons
* s: wheel data sign bit
* d2-d0: wheel data
*/
z = (sc->ipacket[3] & MOUSE_EXPLORER_ZNEG)
? (sc->ipacket[3] & 0x0f) - 16 : (sc->ipacket[3] & 0x0f);
ms.button |= (sc->ipacket[3] & MOUSE_EXPLORER_BUTTON4DOWN)
? MOUSE_BUTTON4DOWN : 0;
ms.button |= (sc->ipacket[3] & MOUSE_EXPLORER_BUTTON5DOWN)
? MOUSE_BUTTON5DOWN : 0;
break;
case MOUSE_MODEL_INTELLI:
case MOUSE_MODEL_NET:
/* wheel data is in the fourth byte */
z = (char)sc->ipacket[3];
/* some mice may send 7 when there is no Z movement?! XXX */
if ((z >= 7) || (z <= -7))
z = 0;
/* some compatible mice have additional buttons */
ms.button |= (c & MOUSE_PS2INTELLI_BUTTON4DOWN)
? MOUSE_BUTTON4DOWN : 0;
ms.button |= (c & MOUSE_PS2INTELLI_BUTTON5DOWN)
? MOUSE_BUTTON5DOWN : 0;
break;
case MOUSE_MODEL_MOUSEMANPLUS:
/*
* PS2++ protocl packet
*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 1: * 1 p3 p2 1 * * *
* byte 2: c1 c2 p1 p0 d1 d0 1 0
*
* p3-p0: packet type
* c1, c2: c1 & c2 == 1, if p2 == 0
* c1 & c2 == 0, if p2 == 1
*
* packet type: 0 (device type)
* See comments in enable_mmanplus() below.
*
* packet type: 1 (wheel data)
*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 3: h * B5 B4 s d2 d1 d0
*
* h: 1, if horizontal roller data
* 0, if vertical roller data
* B4, B5: button 4 and 5
* s: sign bit
* d2-d0: roller data
*
* packet type: 2 (reserved)
*/
if (((c & MOUSE_PS2PLUS_SYNCMASK) == MOUSE_PS2PLUS_SYNC)
&& (abs(x) > 191)
&& MOUSE_PS2PLUS_CHECKBITS(sc->ipacket)) {
/* the extended data packet encodes button and wheel events */
switch (MOUSE_PS2PLUS_PACKET_TYPE(sc->ipacket)) {
case 1:
/* wheel data packet */
x = y = 0;
if (sc->ipacket[2] & 0x80) {
/* horizontal roller count - ignore it XXX*/
} else {
/* vertical roller count */
z = (sc->ipacket[2] & MOUSE_PS2PLUS_ZNEG)
? (sc->ipacket[2] & 0x0f) - 16
: (sc->ipacket[2] & 0x0f);
}
ms.button |= (sc->ipacket[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
? MOUSE_BUTTON4DOWN : 0;
ms.button |= (sc->ipacket[2] & MOUSE_PS2PLUS_BUTTON5DOWN)
? MOUSE_BUTTON5DOWN : 0;
break;
case 2:
/* this packet type is reserved by Logitech... */
/*
* IBM ScrollPoint Mouse uses this packet type to
* encode both vertical and horizontal scroll movement.
*/
x = y = 0;
/* horizontal count */
if (sc->ipacket[2] & 0x0f)
z = (sc->ipacket[2] & MOUSE_SPOINT_WNEG) ? -2 : 2;
/* vertical count */
if (sc->ipacket[2] & 0xf0)
z = (sc->ipacket[2] & MOUSE_SPOINT_ZNEG) ? -1 : 1;
#if 0
/* vertical count */
z = (sc->ipacket[2] & MOUSE_SPOINT_ZNEG)
? ((sc->ipacket[2] >> 4) & 0x0f) - 16
: ((sc->ipacket[2] >> 4) & 0x0f);
/* horizontal count */
w = (sc->ipacket[2] & MOUSE_SPOINT_WNEG)
? (sc->ipacket[2] & 0x0f) - 16
: (sc->ipacket[2] & 0x0f);
#endif
break;
case 0:
/* device type packet - shouldn't happen */
/* FALL THROUGH */
default:
x = y = 0;
ms.button = ms.obutton;
if (bootverbose)
log(LOG_DEBUG, "psmintr: unknown PS2++ packet type %d: "
"0x%02x 0x%02x 0x%02x\n",
MOUSE_PS2PLUS_PACKET_TYPE(sc->ipacket),
sc->ipacket[0], sc->ipacket[1], sc->ipacket[2]);
break;
}
} else {
/* preserve button states */
ms.button |= ms.obutton & MOUSE_EXTBUTTONS;
}
break;
case MOUSE_MODEL_GLIDEPOINT:
/* `tapping' action */
ms.button |= ((c & MOUSE_PS2_TAP)) ? 0 : MOUSE_BUTTON4DOWN;
break;
case MOUSE_MODEL_NETSCROLL:
/* three addtional bytes encode buttons and wheel events */
ms.button |= (sc->ipacket[3] & MOUSE_PS2_BUTTON3DOWN)
? MOUSE_BUTTON4DOWN : 0;
ms.button |= (sc->ipacket[3] & MOUSE_PS2_BUTTON1DOWN)
? MOUSE_BUTTON5DOWN : 0;
z = (sc->ipacket[3] & MOUSE_PS2_XNEG)
? sc->ipacket[4] - 256 : sc->ipacket[4];
break;
case MOUSE_MODEL_THINK:
/* the fourth button state in the first byte */
ms.button |= (c & MOUSE_PS2_TAP) ? MOUSE_BUTTON4DOWN : 0;
break;
case MOUSE_MODEL_VERSAPAD:
/* VersaPad PS/2 absolute mode message format
*
* [packet1] 7 6 5 4 3 2 1 0(LSB)
* ipacket[0]: 1 1 0 A 1 L T R
* ipacket[1]: H7 H6 H5 H4 H3 H2 H1 H0
* ipacket[2]: V7 V6 V5 V4 V3 V2 V1 V0
* ipacket[3]: 1 1 1 A 1 L T R
* ipacket[4]:V11 V10 V9 V8 H11 H10 H9 H8
* ipacket[5]: 0 P6 P5 P4 P3 P2 P1 P0
*
* [note]
* R: right physical mouse button (1=on)
* T: touch pad virtual button (1=tapping)
* L: left physical mouse button (1=on)
* A: position data is valid (1=valid)
* H: horizontal data (12bit signed integer. H11 is sign bit.)
* V: vertical data (12bit signed integer. V11 is sign bit.)
* P: pressure data
*
* Tapping is mapped to MOUSE_BUTTON4.
*/
ms.button = butmap_versapad[c & MOUSE_PS2VERSA_BUTTONS];
ms.button |= (c & MOUSE_PS2VERSA_TAP) ? MOUSE_BUTTON4DOWN : 0;
x = y = 0;
if (c & MOUSE_PS2VERSA_IN_USE) {
x0 = sc->ipacket[1] | (((sc->ipacket[4]) & 0x0f) << 8);
y0 = sc->ipacket[2] | (((sc->ipacket[4]) & 0xf0) << 4);
if (x0 & 0x800)
x0 -= 0x1000;
if (y0 & 0x800)
y0 -= 0x1000;
if (sc->flags & PSM_FLAGS_FINGERDOWN) {
x = sc->xold - x0;
y = y0 - sc->yold;
if (x < 0) /* XXX */
x++;
else if (x)
x--;
if (y < 0)
y++;
else if (y)
y--;
} else {
sc->flags |= PSM_FLAGS_FINGERDOWN;
}
sc->xold = x0;
sc->yold = y0;
} else {
sc->flags &= ~PSM_FLAGS_FINGERDOWN;
}
c = ((x < 0) ? MOUSE_PS2_XNEG : 0)
| ((y < 0) ? MOUSE_PS2_YNEG : 0);
break;
case MOUSE_MODEL_4D:
/*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 1: s2 d2 s1 d1 1 M R L
* byte 2: sx x x x x x x x
* byte 3: sy y y y y y y y
*
* s1: wheel 1 direction
* d1: wheel 1 data
* s2: wheel 2 direction
* d2: wheel 2 data
*/
x = (sc->ipacket[1] & 0x80) ? sc->ipacket[1] - 256 : sc->ipacket[1];
y = (sc->ipacket[2] & 0x80) ? sc->ipacket[2] - 256 : sc->ipacket[2];
switch (c & MOUSE_4D_WHEELBITS) {
case 0x10:
z = 1;
break;
case 0x30:
z = -1;
break;
case 0x40: /* 2nd wheel turning right XXX */
z = 2;
break;
case 0xc0: /* 2nd wheel turning left XXX */
z = -2;
break;
}
break;
case MOUSE_MODEL_4DPLUS:
if ((x < 16 - 256) && (y < 16 - 256)) {
/*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 1: 0 0 1 1 1 M R L
* byte 2: 0 0 0 0 1 0 0 0
* byte 3: 0 0 0 0 S s d1 d0
*
* L, M, R, S: left, middle, right and side buttons
* s: wheel data sign bit
* d1-d0: wheel data
*/
x = y = 0;
if (sc->ipacket[2] & MOUSE_4DPLUS_BUTTON4DOWN)
ms.button |= MOUSE_BUTTON4DOWN;
z = (sc->ipacket[2] & MOUSE_4DPLUS_ZNEG)
? ((sc->ipacket[2] & 0x07) - 8)
: (sc->ipacket[2] & 0x07) ;
} else {
/* preserve previous button states */
ms.button |= ms.obutton & MOUSE_EXTBUTTONS;
}
break;
case MOUSE_MODEL_GENERIC:
default:
break;
}
/* scale values */
if (sc->mode.accelfactor >= 1) {
if (x != 0) {
x = x * x / sc->mode.accelfactor;
if (x == 0)
x = 1;
if (c & MOUSE_PS2_XNEG)
x = -x;
}
if (y != 0) {
y = y * y / sc->mode.accelfactor;
if (y == 0)
y = 1;
if (c & MOUSE_PS2_YNEG)
y = -y;
}
}
ms.dx = x;
ms.dy = y;
ms.dz = z;
ms.flags = ((x || y || z) ? MOUSE_POSCHANGED : 0)
| (ms.obutton ^ ms.button);
if (sc->mode.level < PSM_LEVEL_NATIVE)
sc->inputbytes = tame_mouse(sc, &ms, sc->ipacket);
sc->status.flags |= ms.flags;
sc->status.dx += ms.dx;
sc->status.dy += ms.dy;
sc->status.dz += ms.dz;
sc->status.button = ms.button;
sc->button = ms.button;
sc->watchdog = FALSE;
/* queue data */
if (sc->queue.count + sc->inputbytes < sizeof(sc->queue.buf)) {
l = min(sc->inputbytes, sizeof(sc->queue.buf) - sc->queue.tail);
bcopy(&sc->ipacket[0], &sc->queue.buf[sc->queue.tail], l);
if (sc->inputbytes > l)
bcopy(&sc->ipacket[l], &sc->queue.buf[0], sc->inputbytes - l);
sc->queue.tail =
(sc->queue.tail + sc->inputbytes) % sizeof(sc->queue.buf);
sc->queue.count += sc->inputbytes;
}
sc->inputbytes = 0;
if (sc->state & PSM_ASLP) {
sc->state &= ~PSM_ASLP;
wakeup((caddr_t) sc);
}
selwakeup(&sc->rsel);
}
}
static int
psmpoll(dev_t dev, int events, struct thread *td)
{
struct psm_softc *sc = PSM_SOFTC(PSM_UNIT(dev));
int s;
int revents = 0;
/* Return true if a mouse event available */
s = spltty();
if (events & (POLLIN | POLLRDNORM)) {
if (sc->queue.count > 0)
revents |= events & (POLLIN | POLLRDNORM);
else
selrecord(td, &sc->rsel);
}
splx(s);
return (revents);
}
/* vendor/model specific routines */
static int mouse_id_proc1(KBDC kbdc, int res, int scale, int *status)
{
if (set_mouse_resolution(kbdc, res) != res)
return FALSE;
if (set_mouse_scaling(kbdc, scale)
&& set_mouse_scaling(kbdc, scale)
&& set_mouse_scaling(kbdc, scale)
&& (get_mouse_status(kbdc, status, 0, 3) >= 3))
return TRUE;
return FALSE;
}
static int
mouse_ext_command(KBDC kbdc, int command)
{
int c;
c = (command >> 6) & 0x03;
if (set_mouse_resolution(kbdc, c) != c)
return FALSE;
c = (command >> 4) & 0x03;
if (set_mouse_resolution(kbdc, c) != c)
return FALSE;
c = (command >> 2) & 0x03;
if (set_mouse_resolution(kbdc, c) != c)
return FALSE;
c = (command >> 0) & 0x03;
if (set_mouse_resolution(kbdc, c) != c)
return FALSE;
return TRUE;
}
#if notyet
/* Logitech MouseMan Cordless II */
static int
enable_lcordless(struct psm_softc *sc)
{
int status[3];
int ch;
if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 2, status))
return FALSE;
if (status[1] == PSMD_RES_HIGH)
return FALSE;
ch = (status[0] & 0x07) - 1; /* channel # */
if ((ch <= 0) || (ch > 4))
return FALSE;
/*
* status[1]: always one?
* status[2]: battery status? (0-100)
*/
return TRUE;
}
#endif /* notyet */
/* Genius NetScroll Mouse, MouseSystems SmartScroll Mouse */
static int
enable_groller(struct psm_softc *sc)
{
int status[3];
/*
* The special sequence to enable the fourth button and the
* roller. Immediately after this sequence check status bytes.
* if the mouse is NetScroll, the second and the third bytes are
* '3' and 'D'.
*/
/*
* If the mouse is an ordinary PS/2 mouse, the status bytes should
* look like the following.
*
* byte 1 bit 7 always 0
* bit 6 stream mode (0)
* bit 5 disabled (0)
* bit 4 1:1 scaling (0)
* bit 3 always 0
* bit 0-2 button status
* byte 2 resolution (PSMD_RES_HIGH)
* byte 3 report rate (?)
*/
if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 1, status))
return FALSE;
if ((status[1] != '3') || (status[2] != 'D'))
return FALSE;
/* FIXME: SmartScroll Mouse has 5 buttons! XXX */
sc->hw.buttons = 4;
return TRUE;
}
/* Genius NetMouse/NetMouse Pro, ASCII Mie Mouse, NetScroll Optical */
static int
enable_gmouse(struct psm_softc *sc)
{
int status[3];
/*
* The special sequence to enable the middle, "rubber" button.
* Immediately after this sequence check status bytes.
* if the mouse is NetMouse, NetMouse Pro, or ASCII MIE Mouse,
* the second and the third bytes are '3' and 'U'.
* NOTE: NetMouse reports that it has three buttons although it has
* two buttons and a rubber button. NetMouse Pro and MIE Mouse
* say they have three buttons too and they do have a button on the
* side...
*/
if (!mouse_id_proc1(sc->kbdc, PSMD_RES_HIGH, 1, status))
return FALSE;
if ((status[1] != '3') || (status[2] != 'U'))
return FALSE;
return TRUE;
}
/* ALPS GlidePoint */
static int
enable_aglide(struct psm_softc *sc)
{
int status[3];
/*
* The special sequence to obtain ALPS GlidePoint specific
* information. Immediately after this sequence, status bytes will
* contain something interesting.
* NOTE: ALPS produces several models of GlidePoint. Some of those
* do not respond to this sequence, thus, cannot be detected this way.
*/
if (set_mouse_sampling_rate(sc->kbdc, 100) != 100)
return FALSE;
if (!mouse_id_proc1(sc->kbdc, PSMD_RES_LOW, 2, status))
return FALSE;
if ((status[1] == PSMD_RES_LOW) || (status[2] == 100))
return FALSE;
return TRUE;
}
/* Kensington ThinkingMouse/Trackball */
static int
enable_kmouse(struct psm_softc *sc)
{
static unsigned char rate[] = { 20, 60, 40, 20, 20, 60, 40, 20, 20 };
KBDC kbdc = sc->kbdc;
int status[3];
int id1;
int id2;
int i;
id1 = get_aux_id(kbdc);
if (set_mouse_sampling_rate(kbdc, 10) != 10)
return FALSE;
/*
* The device is now in the native mode? It returns a different
* ID value...
*/
id2 = get_aux_id(kbdc);
if ((id1 == id2) || (id2 != 2))
return FALSE;
if (set_mouse_resolution(kbdc, PSMD_RES_LOW) != PSMD_RES_LOW)
return FALSE;
#if PSM_DEBUG >= 2
/* at this point, resolution is LOW, sampling rate is 10/sec */
if (get_mouse_status(kbdc, status, 0, 3) < 3)
return FALSE;
#endif
/*
* The special sequence to enable the third and fourth buttons.
* Otherwise they behave like the first and second buttons.
*/
for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i])
return FALSE;
}
/*
* At this point, the device is using default resolution and
* sampling rate for the native mode.
*/
if (get_mouse_status(kbdc, status, 0, 3) < 3)
return FALSE;
if ((status[1] == PSMD_RES_LOW) || (status[2] == rate[i - 1]))
return FALSE;
/* the device appears be enabled by this sequence, diable it for now */
disable_aux_dev(kbdc);
empty_aux_buffer(kbdc, 5);
return TRUE;
}
/* Logitech MouseMan+/FirstMouse+, IBM ScrollPoint Mouse */
static int
enable_mmanplus(struct psm_softc *sc)
{
KBDC kbdc = sc->kbdc;
int data[3];
/* the special sequence to enable the fourth button and the roller. */
/*
* NOTE: for ScrollPoint to respond correctly, the SET_RESOLUTION
* must be called exactly three times since the last RESET command
* before this sequence. XXX
*/
if (!set_mouse_scaling(kbdc, 1))
return FALSE;
if (!mouse_ext_command(kbdc, 0x39) || !mouse_ext_command(kbdc, 0xdb))
return FALSE;
if (get_mouse_status(kbdc, data, 1, 3) < 3)
return FALSE;
/*
* PS2++ protocl, packet type 0
*
* b7 b6 b5 b4 b3 b2 b1 b0
* byte 1: * 1 p3 p2 1 * * *
* byte 2: 1 1 p1 p0 m1 m0 1 0
* byte 3: m7 m6 m5 m4 m3 m2 m1 m0
*
* p3-p0: packet type: 0
* m7-m0: model ID: MouseMan+:0x50, FirstMouse+:0x51, ScrollPoint:0x58...
*/
/* check constant bits */
if ((data[0] & MOUSE_PS2PLUS_SYNCMASK) != MOUSE_PS2PLUS_SYNC)
return FALSE;
if ((data[1] & 0xc3) != 0xc2)
return FALSE;
/* check d3-d0 in byte 2 */
if (!MOUSE_PS2PLUS_CHECKBITS(data))
return FALSE;
/* check p3-p0 */
if (MOUSE_PS2PLUS_PACKET_TYPE(data) != 0)
return FALSE;
sc->hw.hwid &= 0x00ff;
sc->hw.hwid |= data[2] << 8; /* save model ID */
/*
* MouseMan+ (or FirstMouse+) is now in its native mode, in which
* the wheel and the fourth button events are encoded in the
* special data packet. The mouse may be put in the IntelliMouse mode
* if it is initialized by the IntelliMouse's method.
*/
return TRUE;
}
/* MS IntelliMouse Explorer */
static int
enable_msexplorer(struct psm_softc *sc)
{
static unsigned char rate0[] = { 200, 100, 80, };
static unsigned char rate1[] = { 200, 200, 80, };
KBDC kbdc = sc->kbdc;
int id;
int i;
/* the special sequence to enable the extra buttons and the roller. */
for (i = 0; i < sizeof(rate1)/sizeof(rate1[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate1[i]) != rate1[i])
return FALSE;
}
/* the device will give the genuine ID only after the above sequence */
id = get_aux_id(kbdc);
if (id != PSM_EXPLORER_ID)
return FALSE;
sc->hw.hwid = id;
sc->hw.buttons = 5; /* IntelliMouse Explorer XXX */
/*
* XXX: this is a kludge to fool some KVM switch products
* which think they are clever enough to know the 4-byte IntelliMouse
* protocol, and assume any other protocols use 3-byte packets.
* They don't convey 4-byte data packets from the IntelliMouse Explorer
* correctly to the host computer because of this!
* The following sequence is actually IntelliMouse's "wake up"
* sequence; it will make the KVM think the mouse is IntelliMouse
* when it is in fact IntelliMouse Explorer.
*/
for (i = 0; i < sizeof(rate0)/sizeof(rate0[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate0[i]) != rate0[i])
break;
}
id = get_aux_id(kbdc);
return TRUE;
}
/* MS IntelliMouse */
static int
enable_msintelli(struct psm_softc *sc)
{
/*
* Logitech MouseMan+ and FirstMouse+ will also respond to this
* probe routine and act like IntelliMouse.
*/
static unsigned char rate[] = { 200, 100, 80, };
KBDC kbdc = sc->kbdc;
int id;
int i;
/* the special sequence to enable the third button and the roller. */
for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i])
return FALSE;
}
/* the device will give the genuine ID only after the above sequence */
id = get_aux_id(kbdc);
if (id != PSM_INTELLI_ID)
return FALSE;
sc->hw.hwid = id;
sc->hw.buttons = 3;
return TRUE;
}
/* A4 Tech 4D Mouse */
static int
enable_4dmouse(struct psm_softc *sc)
{
/*
* Newer wheel mice from A4 Tech may use the 4D+ protocol.
*/
static unsigned char rate[] = { 200, 100, 80, 60, 40, 20 };
KBDC kbdc = sc->kbdc;
int id;
int i;
for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i])
return FALSE;
}
id = get_aux_id(kbdc);
/*
* WinEasy 4D, 4 Way Scroll 4D: 6
* Cable-Free 4D: 8 (4DPLUS)
* WinBest 4D+, 4 Way Scroll 4D+: 8 (4DPLUS)
*/
if (id != PSM_4DMOUSE_ID)
return FALSE;
sc->hw.hwid = id;
sc->hw.buttons = 3; /* XXX some 4D mice have 4? */
return TRUE;
}
/* A4 Tech 4D+ Mouse */
static int
enable_4dplus(struct psm_softc *sc)
{
/*
* Newer wheel mice from A4 Tech seem to use this protocol.
* Older models are recognized as either 4D Mouse or IntelliMouse.
*/
KBDC kbdc = sc->kbdc;
int id;
/*
* enable_4dmouse() already issued the following ID sequence...
static unsigned char rate[] = { 200, 100, 80, 60, 40, 20 };
int i;
for (i = 0; i < sizeof(rate)/sizeof(rate[0]); ++i) {
if (set_mouse_sampling_rate(kbdc, rate[i]) != rate[i])
return FALSE;
}
*/
id = get_aux_id(kbdc);
if (id != PSM_4DPLUS_ID)
return FALSE;
sc->hw.hwid = id;
sc->hw.buttons = 4; /* XXX */
return TRUE;
}
/* Interlink electronics VersaPad */
static int
enable_versapad(struct psm_softc *sc)
{
KBDC kbdc = sc->kbdc;
int data[3];
set_mouse_resolution(kbdc, PSMD_RES_MEDIUM_HIGH); /* set res. 2 */
set_mouse_sampling_rate(kbdc, 100); /* set rate 100 */
set_mouse_scaling(kbdc, 1); /* set scale 1:1 */
set_mouse_scaling(kbdc, 1); /* set scale 1:1 */
set_mouse_scaling(kbdc, 1); /* set scale 1:1 */
set_mouse_scaling(kbdc, 1); /* set scale 1:1 */
if (get_mouse_status(kbdc, data, 0, 3) < 3) /* get status */
return FALSE;
if (data[2] != 0xa || data[1] != 0 ) /* rate == 0xa && res. == 0 */
return FALSE;
set_mouse_scaling(kbdc, 1); /* set scale 1:1 */
sc->config |= PSM_CONFIG_HOOKRESUME | PSM_CONFIG_INITAFTERSUSPEND;
return TRUE; /* PS/2 absolute mode */
}
static int
psmresume(device_t dev)
{
struct psm_softc *sc = device_get_softc(dev);
int unit = device_get_unit(dev);
int err;
if (verbose >= 2)
log(LOG_NOTICE, "psm%d: system resume hook called.\n", unit);
if (!(sc->config & PSM_CONFIG_HOOKRESUME))
return (0);
err = reinitialize(sc, sc->config & PSM_CONFIG_INITAFTERSUSPEND);
if ((sc->state & PSM_ASLP) && !(sc->state & PSM_VALID)) {
/*
* Release the blocked process; it must be notified that the device
* cannot be accessed anymore.
*/
sc->state &= ~PSM_ASLP;
wakeup((caddr_t)sc);
}
if (verbose >= 2)
log(LOG_DEBUG, "psm%d: system resume hook exiting.\n", unit);
return (err);
}
DRIVER_MODULE(psm, atkbdc, psm_driver, psm_devclass, 0, 0);
/*
* This sucks up assignments from PNPBIOS and ACPI.
*/
/*
* When the PS/2 mouse device is reported by ACPI or PnP BIOS, it may
* appear BEFORE the AT keyboard controller. As the PS/2 mouse device
* can be probed and attached only after the AT keyboard controller is
* attached, we shall quietly reserve the IRQ resource for later use.
* If the PS/2 mouse device is reported to us AFTER the keyboard controller,
* copy the IRQ resource to the PS/2 mouse device instance hanging
* under the keyboard controller, then probe and attach it.
*/
static devclass_t psmcpnp_devclass;
static device_probe_t psmcpnp_probe;
static device_attach_t psmcpnp_attach;
static device_method_t psmcpnp_methods[] = {
DEVMETHOD(device_probe, psmcpnp_probe),
DEVMETHOD(device_attach, psmcpnp_attach),
{ 0, 0 }
};
static driver_t psmcpnp_driver = {
PSMCPNP_DRIVER_NAME,
psmcpnp_methods,
1, /* no softc */
};
static struct isa_pnp_id psmcpnp_ids[] = {
{ 0x030fd041, "PS/2 mouse port" }, /* PNP0F03 */
{ 0x130fd041, "PS/2 mouse port" }, /* PNP0F13 */
{ 0x1303d041, "PS/2 port" }, /* PNP0313, XXX */
{ 0x80374d24, "IBM PS/2 mouse port" }, /* IBM3780, ThinkPad */
{ 0x81374d24, "IBM PS/2 mouse port" }, /* IBM3781, ThinkPad */
{ 0x0490d94d, "SONY VAIO PS/2 mouse port"}, /* SNY9004, Vaio*/
{ 0 }
};
static int
create_a_copy(device_t atkbdc, device_t me)
{
device_t psm;
u_long irq;
/* find the PS/2 mouse device instance under the keyboard controller */
psm = device_find_child(atkbdc, PSM_DRIVER_NAME,
device_get_unit(atkbdc));
if (psm == NULL)
return ENXIO;
if (device_get_state(psm) != DS_NOTPRESENT)
return 0;
/* move our resource to the found device */
irq = bus_get_resource_start(me, SYS_RES_IRQ, 0);
bus_set_resource(psm, SYS_RES_IRQ, KBDC_RID_AUX, irq, 1);
/* ...then probe and attach it */
return device_probe_and_attach(psm);
}
static int
psmcpnp_probe(device_t dev)
{
struct resource *res;
u_long irq;
int rid;
if (ISA_PNP_PROBE(device_get_parent(dev), dev, psmcpnp_ids))
return ENXIO;
/*
* The PnP BIOS and ACPI are supposed to assign an IRQ (12)
* to the PS/2 mouse device node. But, some buggy PnP BIOS
* declares the PS/2 mouse device node without an IRQ resource!
* If this happens, we shall refer to device hints.
* If we still don't find it there, use a hardcoded value... XXX
*/
rid = 0;
irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid);
if (irq <= 0) {
if (resource_long_value(PSM_DRIVER_NAME,
device_get_unit(dev), "irq", &irq) != 0)
irq = 12; /* XXX */
device_printf(dev, "irq resource info is missing; "
"assuming irq %ld\n", irq);
bus_set_resource(dev, SYS_RES_IRQ, rid, irq, 1);
}
res = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE);
bus_release_resource(dev, SYS_RES_IRQ, rid, res);
/* keep quiet */
if (!bootverbose)
device_quiet(dev);
return ((res == NULL) ? ENXIO : 0);
}
static int
psmcpnp_attach(device_t dev)
{
device_t atkbdc;
int rid;
/* find the keyboard controller, which may be on acpi* or isa* bus */
atkbdc = devclass_get_device(devclass_find(ATKBDC_DRIVER_NAME),
device_get_unit(dev));
if ((atkbdc != NULL) && (device_get_state(atkbdc) == DS_ATTACHED)) {
create_a_copy(atkbdc, dev);
} else {
/*
* If we don't have the AT keyboard controller yet,
* just reserve the IRQ for later use...
* (See psmidentify() above.)
*/
rid = 0;
bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
RF_SHAREABLE);
}
return 0;
}
DRIVER_MODULE(psmcpnp, isa, psmcpnp_driver, psmcpnp_devclass, 0, 0);
DRIVER_MODULE(psmcpnp, acpi, psmcpnp_driver, psmcpnp_devclass, 0, 0);
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