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freebsd-skq/sys/i386/isa/psm.c
yokota 50153b4544 - Added some configuration flags as workaround for not-so-compatible 
keyboard/mouse/display switch products (console switches).  Some
  products claim they emulate the PS/2 mouse when the host computer
  talks to the mouse while the mouse is actually routed to another
  host.

	flags 0x200	Do not try to identify the mouse model. All
			mice will be recognized as "generic PS/2".
	      0x400	Do not reset the mouse.  Some switches' response
			to the reset command is too slow and the psm
			will timeout.
	      0x1000	Relax error checking when probing the mouse
			port.

- Added another flag for pad devices.

	flags 0x800	Assume the pad behaves like ALPS GlidePoint
			when the user `taps' the surface of the pad;
			it will be reported as the fourth button.
1998-11-20 11:46:43 +00:00

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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.
*
* $Id: psm.c,v 1.56 1998/10/22 05:58:40 bde Exp $
*/
/*
* 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 "psm.h"
#include "apm.h"
#include "opt_devfs.h"
#include "opt_psm.h"
#if NPSM > 0
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/conf.h>
#include <sys/poll.h>
#include <sys/syslog.h>
#include <sys/malloc.h>
#ifdef DEVFS
#include <sys/devfsext.h>
#endif
#include <sys/select.h>
#include <sys/uio.h>
#include <machine/apm_bios.h>
#include <machine/clock.h>
#include <machine/limits.h>
#include <machine/mouse.h>
#include <i386/isa/isa_device.h>
#include <i386/isa/kbdio.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
/* features */
/* #define PSM_HOOKAPM hook the APM resume event */
/* #define PSM_RESETAFTERSUSPEND reset the device at the resume event */
#if NAPM <= 0
#undef PSM_HOOKAPM
#endif /* NAPM */
#ifndef PSM_HOOKAPM
#undef PSM_RESETAFTERSUSPEND
#endif /* PSM_HOOKAPM */
/* end of driver specific options */
/* 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
/* 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
/* 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 */
static struct psm_softc { /* Driver status information */
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 */
int addr; /* I/O port address */
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 */
#ifdef DEVFS
void *devfs_token;
void *b_devfs_token;
#endif
#ifdef PSM_HOOKAPM
struct apmhook resumehook;
#endif
} *psm_softc[NPSM];
/* 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_FLAGS (PSM_CONFIG_RESOLUTION \
| PSM_CONFIG_ACCEL \
| PSM_CONFIG_NOCHECKSYNC \
| PSM_CONFIG_NOIDPROBE \
| PSM_CONFIG_NORESET \
| PSM_CONFIG_FORCETAP \
| PSM_CONFIG_IGNPORTERROR)
/* other flags (flags) */
/* 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 int psmprobe __P((struct isa_device *));
static int psmattach __P((struct isa_device *));
static void psm_drvinit __P((void *));
#ifdef PSM_HOOKAPM
static int psmresume __P((void *));
#endif
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 reinitialize __P((int, mousemode_t *));
static int doopen __P((int, int));
static char *model_name(int);
static ointhand2_t psmintr;
/* vendor specific features */
typedef int probefunc_t __P((struct psm_softc *));
static int mouse_id_proc1 __P((KBDC, int, int, 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_msintelli;
static probefunc_t enable_mmanplus;
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[] = {
{ MOUSE_MODEL_NET, /* Genius NetMouse */
0xc8, MOUSE_INTELLI_PACKETSIZE, enable_gmouse, },
{ MOUSE_MODEL_NETSCROLL, /* Genius NetScroll */
0xc8, 6, enable_groller, },
{ MOUSE_MODEL_GLIDEPOINT, /* ALPS GlidePoint */
0xc0, MOUSE_PS2_PACKETSIZE, enable_aglide, },
{ MOUSE_MODEL_MOUSEMANPLUS, /* Logitech MouseMan+ */
0x08, MOUSE_PS2_PACKETSIZE, enable_mmanplus, },
{ MOUSE_MODEL_THINK, /* Kensignton ThinkingMouse */
0x80, MOUSE_PS2_PACKETSIZE, enable_kmouse, },
{ MOUSE_MODEL_INTELLI, /* Microsoft IntelliMouse */
0xc8, MOUSE_INTELLI_PACKETSIZE, enable_msintelli, },
{ MOUSE_MODEL_GENERIC,
0xc0, MOUSE_PS2_PACKETSIZE, NULL, },
};
#define GENERIC_MOUSE_ENTRY 6
/* device driver declarateion */
struct isa_driver psmdriver = { psmprobe, psmattach, "psm", FALSE };
#define CDEV_MAJOR 21
static struct cdevsw psm_cdevsw = {
psmopen, psmclose, psmread, nowrite, /* 21 */
psmioctl, nostop, nullreset, nodevtotty,
psmpoll, nommap, NULL, "psm", NULL, -1
};
/* 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 */
-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" },
{ MOUSE_MODEL_NET, "NetMouse" },
{ MOUSE_MODEL_GLIDEPOINT, "GlidePoint" },
{ MOUSE_MODEL_THINK, "ThinkingMouse" },
{ MOUSE_MODEL_INTELLI, "IntelliMouse" },
{ MOUSE_MODEL_MOUSEMANPLUS, "MouseMan+" },
{ 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");
return FALSE;
} else {
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
reinitialize(int unit, mousemode_t *mode)
{
struct psm_softc *sc = psm_softc[unit];
KBDC kbdc = psm_softc[unit]->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",
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",
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", 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", 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",
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 (reinitialize).\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(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 (reinitialize).\n", unit);
return TRUE;
}
static int
doopen(int unit, int command_byte)
{
struct psm_softc *sc = psm_softc[unit];
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 (!reinitialize(unit, &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",
unit);
return (EIO);
}
}
if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3)
log(LOG_DEBUG, "psm%d: failed to get status (doopen).\n", 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",
unit);
return (EIO);
}
return (0);
}
/* psm driver entry points */
#define endprobe(v) { if (bootverbose) \
--verbose; \
kbdc_set_device_mask(sc->kbdc, mask); \
kbdc_lock(sc->kbdc, FALSE); \
free(sc, M_DEVBUF); \
return (v); \
}
static int
psmprobe(struct isa_device *dvp)
{
int unit = dvp->id_unit;
struct psm_softc *sc;
int stat[3];
int command_byte;
int mask;
int i;
/* validate unit number */
if (unit >= NPSM)
return (0);
psm_softc[unit] = NULL;
sc = malloc(sizeof *sc, M_DEVBUF, M_NOWAIT);
if (sc == NULL)
return (0);
bzero(sc, sizeof *sc);
#if 0
kbdc_debug(TRUE);
#endif
sc->addr = dvp->id_iobase;
sc->kbdc = kbdc_open(sc->addr);
sc->config = dvp->id_flags & PSM_CONFIG_FLAGS;
sc->flags = 0;
if (bootverbose)
++verbose;
if (!kbdc_lock(sc->kbdc, TRUE)) {
printf("psm%d: unable to lock the controller.\n", unit);
if (bootverbose)
--verbose;
free(sc, M_DEVBUF);
return (0);
}
/*
* 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(0);
}
/*
* 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(0);
}
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(0);
}
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(0);
}
}
/*
* 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(0);
}
/* 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(0);
}
switch (sc->hw.hwid) {
case PSM_BALLPOINT_ID:
sc->hw.type = MOUSE_TRACKBALL;
break;
case PSM_MOUSE_ID:
case PSM_INTELLI_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 */
i = send_aux_command(sc->kbdc, PSMC_SET_DEFAULTS);
if (verbose >= 2)
printf("psm%d: SET_DEFAULTS return code:%04x\n", unit, i);
if (sc->config & PSM_CONFIG_RESOLUTION) {
sc->mode.resolution
= set_mouse_resolution(sc->kbdc,
(sc->config & PSM_CONFIG_RESOLUTION) - 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(0);
}
/* done */
psm_softc[unit] = sc;
kbdc_set_device_mask(sc->kbdc, mask | KBD_AUX_CONTROL_BITS);
kbdc_lock(sc->kbdc, FALSE);
return (IO_PSMSIZE);
}
static int
psmattach(struct isa_device *dvp)
{
int unit = dvp->id_unit;
struct psm_softc *sc = psm_softc[unit];
dvp->id_ointr = psmintr;
if (sc == NULL) /* shouldn't happen */
return (0);
/* Setup initial state */
sc->state = PSM_VALID;
/* Done */
#ifdef DEVFS
sc->devfs_token =
devfs_add_devswf(&psm_cdevsw, PSM_MKMINOR(unit, FALSE),
DV_CHR, 0, 0, 0666, "psm%d", unit);
sc->b_devfs_token =
devfs_add_devswf(&psm_cdevsw, PSM_MKMINOR(unit, TRUE),
DV_CHR, 0, 0, 0666, "bpsm%d", unit);
#endif /* DEVFS */
#ifdef PSM_HOOKAPM
sc->resumehook.ah_name = "PS/2 mouse";
sc->resumehook.ah_fun = psmresume;
sc->resumehook.ah_arg = (void *)unit;
sc->resumehook.ah_order = APM_MID_ORDER;
apm_hook_establish(APM_HOOK_RESUME , &sc->resumehook);
if (verbose)
printf("psm%d: APM hooks installed.\n", unit);
#endif /* PSM_HOOKAPM */
if (!verbose) {
printf("psm%d: model %s, device ID %d\n",
unit, model_name(sc->hw.model), sc->hw.hwid);
} else {
printf("psm%d: model %s, device ID %d, %d buttons\n",
unit, model_name(sc->hw.model), sc->hw.hwid, 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 (1);
}
static int
psmopen(dev_t dev, int flag, int fmt, struct proc *p)
{
int unit = PSM_UNIT(dev);
struct psm_softc *sc;
int command_byte;
int err;
int s;
/* Validate unit number */
if (unit >= NPSM)
return (ENXIO);
/* 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);
/* Initialize state */
sc->rsel.si_flags = 0;
sc->rsel.si_pid = 0;
sc->mode.level = sc->dflt_mode.level;
sc->mode.protocol = sc->dflt_mode.protocol;
/* 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;
/* 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(unit, 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 proc *p)
{
struct psm_softc *sc = psm_softc[PSM_UNIT(dev)];
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",
PSM_UNIT(dev));
/* 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);
/* 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",
PSM_UNIT(dev));
}
if (get_mouse_status(sc->kbdc, stat, 0, 3) < 3)
log(LOG_DEBUG, "psm%d: failed to get status (psmclose).\n",
PSM_UNIT(dev));
}
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",
PSM_UNIT(dev));
}
/* 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);
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 proc *p)
{
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;
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 = get_aux_id(sc->kbdc);
*(int *)addr = sc->hw.hwid;
unblock_mouse_data(sc, command_byte);
break;
#endif /* MOUSE_GETHWID */
default:
return ENOTTY;
}
return error;
}
static void
psmintr(int unit)
{
/*
* 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
};
register struct psm_softc *sc = psm_softc[unit];
mousestatus_t ms;
int x, y, z;
int c;
int l;
/* 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;
/*
* Check sync bits. We check for overflow bits and the bit 3
* for most mice. True, the code doesn't work if overflow
* condition occurs. But we expect it rarely happens...
*/
if ((sc->inputbytes == 0)
&& ((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]);
continue;
}
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];
/*
* A kludge for Kensington device!
* The MSB of the horizontal count appears to be stored in
* a strange place. This kludge doesn't affect other mice
* because the bit is the overflow bit which is, in most cases,
* expected to be zero when we reach here. XXX
*/
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_INTELLI:
case MOUSE_MODEL_NET:
/* wheel data is in the fourth byte */
z = (char)sc->ipacket[3];
break;
case MOUSE_MODEL_MOUSEMANPLUS:
if ((c & ~MOUSE_PS2_BUTTONS) == 0xc8) {
/* the extended data packet encodes button and wheel events */
x = y = 0;
z = (sc->ipacket[1] & MOUSE_PS2PLUS_ZNEG)
? (sc->ipacket[2] & 0x0f) - 16 : (sc->ipacket[2] & 0x0f);
ms.button |= (sc->ipacket[2] & MOUSE_PS2PLUS_BUTTON4DOWN)
? MOUSE_BUTTON4DOWN : 0;
} 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 button and wheel events */
ms.button |= (sc->ipacket[3] & MOUSE_PS2_BUTTON3DOWN)
? MOUSE_BUTTON4DOWN : 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_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;
/* 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 proc *p)
{
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(p, &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;
}
#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 */
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!! */
sc->hw.buttons = get_mouse_buttons(sc->kbdc);
sc->hw.buttons = 4;
return TRUE;
}
/* Genius NetMouse/NetMouse Pro */
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 (!mouse_id_proc1(sc->kbdc, PSMD_RES_LOW, 2, status))
return FALSE;
if ((status[0] & 0x10) || (status[1] == PSMD_RES_LOW))
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+ */
static int
enable_mmanplus(struct psm_softc *sc)
{
static char res[] = {
-1, PSMD_RES_LOW, PSMD_RES_HIGH, PSMD_RES_MEDIUM_HIGH,
PSMD_RES_MEDIUM_LOW, -1, PSMD_RES_HIGH, PSMD_RES_MEDIUM_LOW,
PSMD_RES_MEDIUM_HIGH, PSMD_RES_HIGH,
};
KBDC kbdc = sc->kbdc;
int data[3];
int i;
/* the special sequence to enable the fourth button and the roller. */
for (i = 0; i < sizeof(res)/sizeof(res[0]); ++i) {
if (res[i] < 0) {
if (!set_mouse_scaling(kbdc, 1))
return FALSE;
} else {
if (set_mouse_resolution(kbdc, res[i]) != res[i])
return FALSE;
}
}
if (get_mouse_status(kbdc, data, 1, 3) < 3)
return FALSE;
/*
* MouseMan+ and FirstMouse+ return following data.
*
* byte 1 0xc8
* byte 2 ?? (MouseMan+:0xc2, FirstMouse+:0xc6)
* byte 3 model ID? MouseMan+:0x50, FirstMouse+:0x51
*/
if ((data[0] & ~MOUSE_PS2_BUTTONS) != 0xc8)
return FALSE;
/*
* 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 */
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;
}
static int psm_devsw_installed = FALSE;
static void
psm_drvinit(void *unused)
{
dev_t dev;
if (!psm_devsw_installed) {
dev = makedev(CDEV_MAJOR, 0);
cdevsw_add(&dev, &psm_cdevsw, NULL);
psm_devsw_installed = TRUE;
}
}
#ifdef PSM_HOOKAPM
static int
psmresume(void *dummy)
{
struct psm_softc *sc = psm_softc[(int)dummy];
int unit = (int)dummy;
int err = 0;
int s;
int c;
if (verbose >= 2)
log(LOG_NOTICE, "psm%d: APM resume hook called.\n", unit);
/* don't let anybody mess with the aux device */
if (!kbdc_lock(sc->kbdc, TRUE))
return (EIO);
s = spltty();
/* 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 (psmresume).\n",
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 (psmresume).\n",
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;
#ifdef PSM_RESETAFTERSUSPEND
/* try to detect the aux device; are you still there? */
if (reinitialize(unit, &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! (psmresume).\n",
unit);
err = ENXIO;
}
#endif /* PSM_RESETAFTERSUSPEND */
splx(s);
/* restore the driver state */
if ((sc->state & PSM_OPEN) && (err == 0)) {
/* enable the aux device and the port again */
err = doopen(unit, c);
if (err != 0)
log(LOG_ERR, "psm%d: failed to enable the device (psmresume).\n",
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 (psmresume).\n",
unit);
err = EIO;
}
}
/* done */
kbdc_lock(sc->kbdc, FALSE);
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: APM resume hook exiting.\n", unit);
return (err);
}
#endif /* PSM_HOOKAPM */
SYSINIT(psmdev, SI_SUB_DRIVERS, SI_ORDER_MIDDLE + CDEV_MAJOR, psm_drvinit, NULL)
#endif /* NPSM > 0 */
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