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merged touch-panel driver



Hi, uwe.


I merged drivers of the touch-panel of j6x0 and psh3. 


BTW,
PERSONA is using DADR0 by play, and using AD4 by record.
I have not written the driver of audio yet. ;-<  Do you write driver?
--
kiyohara

/*      $NetBSD$ */
/*
 * Copyright (c) 2005 KIYOHARA Takashi
 * All rights reserved.
 */
/*
 * Copyright (c) 2003 Valeriy E. Ushakov
 * 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.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
 */

#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD$");

#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/systm.h>
#include <sys/callout.h>
#ifdef GPROF
#include <sys/gmon.h>
#endif

#include "opt_pfctp.h"

#include <dev/wscons/wsconsio.h>
#include <dev/wscons/wsmousevar.h>
#include <dev/wscons/wskbdvar.h>
#include <dev/wscons/wsksymvar.h>
#include <dev/wscons/wsksymdef.h>
#include <dev/hpc/hpctpanelvar.h>

#include <machine/platid.h>
#include <machine/platid_mask.h>

#include <machine/intr.h>

#include <sh3/exception.h>
#include <sh3/intcreg.h>
#include <sh3/pfcreg.h>
#include <sh3/adcreg.h>

#include <sh3/dev/adcvar.h>


#define PFCTP_DEBUG
#if 0 /* XXX: disabled in favor of local version that uses printf_nolog */
#define DPRINTF_ENABLE
#define DPRINTF_DEBUG   pfctp_debug
#define DPRINTF_LEVEL   0
#include <machine/debug.h>
#else
#ifdef PFCTP_DEBUG
volatile int pfctp_debug = 0;
#define DPRINTF_PRINTF          printf_nolog
#define DPRINTF(arg)            if (pfctp_debug) DPRINTF_PRINTF arg
#define DPRINTFN(n, arg)        if (pfctp_debug > (n)) DPRINTF_PRINTF arg
#else
#define DPRINTF(arg)            ((void)0)
#define DPRINTFN(n, arg)        ((void)0)
#endif
#endif


/*
 * PFC bits pertinent to Jornada 6x0 and PERSONA SH3 machines touchpanel
 */
#define PFCTP_J6X0_PEN_DOWN     0x08

#define PFCTP_J6X0_SCAN_ENABLE  0x20
#define PFCTP_J6X0_SCAN_Y       0x02
#define PFCTP_J6X0_SCAN_X       0x01

#define PFCTP_PSH3_PEN_UP       0x40

#define PFCTP_PSH3_SCAN_ENABLE  0x20
#define PFCTP_PSH3_SCAN_DISABLE 0x01
#define PFCTP_PSH3_SCAN_X       0x06
#define PFCTP_PSH3_SCAN_Y       0x09

/*
 * A/D converter channels to get x/y from
 */
#define PFCTP_J6X0_ADC_CHANNEL_TP_Y     1
#define PFCTP_J6X0_ADC_CHANNEL_TP_X     2

#define PFCTP_PSH3_ADC_CHANNEL_TP_Y     0
#define PFCTP_PSH3_ADC_CHANNEL_TP_X     1

/*
 * Default (read: my device :) raw X/Y values for framebuffer edges.
 * XXX: defopt these?
 */
#define PFCTP_J6X0_FB_LEFT       38
#define PFCTP_J6X0_FB_RIGHT     950
#define PFCTP_J6X0_FB_TOP        80
#define PFCTP_J6X0_FB_BOTTOM    900

#define PFCTP_PSH3_FB_RIGHT      56
#define PFCTP_PSH3_FB_LEFT      969
#define PFCTP_PSH3_FB_TOP       848
#define PFCTP_PSH3_FB_BOTTOM    121

/*
 * Bottom of the n'th hard icon (n = 1..4)
 */
#define PFCTP_J6X0_HARD_ICON_MAX_Y(n) \
        (PFCTP_J6X0_FB_TOP + \
        ((PFCTP_J6X0_FB_BOTTOM - PFCTP_J6X0_FB_TOP) / 4) * (n))


struct pfctp_softc {
        struct device sc_dev;

#define PFCTP_WSMOUSE_ENABLED   0x01
#define PFCTP_WSKBD_ENABLED     0x02
        int sc_enabled;

        int sc_hard_icon;

        struct callout sc_touch_ch;

        struct device *sc_wsmousedev;
        struct device *sc_wskbddev;

        struct tpcalib_softc sc_tpcalib; /* calibration info for wsmouse */

        int sc_irq;
        int sc_intevt;
        struct wsmouse_calibcoords *sc_default_calib;
        struct wskbd_mapdata *sc_wskbd_keymap;

        int (*sc_get_stat)(void);
        int (*sc_get_touched)(struct pfctp_softc *, int *);
        void (*sc_get_raw_xy)(int *, int *);
        int (*sc_get_hard_icon)(int, int);
};


/* config machinery */
static int      pfctp_match(struct device *, struct cfdata *, void *);
static void     pfctp_attach(struct device *, struct device *, void *);
static int      pfctp_wsmouse_submatch(struct device *, struct cfdata *,
                                       void *);
static int      pfctp_wskbd_submatch(struct device *, struct cfdata *, void *);

/* wsmouse accessops */
static int      pfctp_wsmouse_enable(void *);
static int      pfctp_wsmouse_ioctl(void *, u_long, caddr_t, int,
                                    struct proc *);
static void     pfctp_wsmouse_disable(void *);

/* wskbd accessops */
static int      pfctp_wskbd_enable(void *, int);
static void     pfctp_wskbd_set_leds(void *, int);
static int      pfctp_wskbd_ioctl(void *, u_long, caddr_t, int, struct proc *);

/* internal driver routines */
static void     pfctp_enable(struct pfctp_softc *);
static void     pfctp_disable(struct pfctp_softc *);
static int      pfctp_set_enable(struct pfctp_softc *, int, int);
static int      pfctp_intr(void *);
static void     pfctp_start_polling(void *);
static void     pfctp_stop_polling(struct pfctp_softc *);
static void     pfctp_callout_wsmouse(void *);
static void     pfctp_callout_wskbd(void *);
static void     pfctp_wsmouse_input(struct pfctp_softc *, int, int);

/* platid independent routines */
static int      pfctp_j6x0_get_stat(void);
static int      pfctp_j6x0_get_touched(struct pfctp_softc *, int *);
static void     pfctp_j6x0_get_raw_xy(int *, int *);
static int      pfctp_j6x0_get_hard_icon(int, int);

static int      pfctp_psh3_get_stat(void);
static int      pfctp_psh3_get_touched(struct pfctp_softc *, int *);
static void     pfctp_psh3_get_raw_xy(int *, int *);


static const struct wsmouse_accessops pfctp_accessops = {
        pfctp_wsmouse_enable,
        pfctp_wsmouse_ioctl,
        pfctp_wsmouse_disable
};

static const struct wskbd_accessops pfctp_wskbd_accessops = {
        pfctp_wskbd_enable,
        pfctp_wskbd_set_leds,
        pfctp_wskbd_ioctl
};


static const struct wsmouse_calibcoords pfctp_j6x0_default_calib = {
        0, 0, 639, 239,
        4,
        {{ PFCTP_J6X0_FB_LEFT,  PFCTP_J6X0_FB_TOP,      0,   0 },
         { PFCTP_J6X0_FB_RIGHT, PFCTP_J6X0_FB_TOP,    639,   0 },
         { PFCTP_J6X0_FB_LEFT,  PFCTP_J6X0_FB_BOTTOM,   0, 239 },
         { PFCTP_J6X0_FB_RIGHT, PFCTP_J6X0_FB_BOTTOM, 639, 239 }}
};

static const struct wsmouse_calibcoords pfctp_psh3_default_calib = {
        0, 0, 639, 239,
        4,
        {{ PFCTP_PSH3_FB_LEFT,  PFCTP_PSH3_FB_TOP,      0,   0 },
         { PFCTP_PSH3_FB_RIGHT, PFCTP_PSH3_FB_TOP,    639,   0 },
         { PFCTP_PSH3_FB_LEFT,  PFCTP_PSH3_FB_BOTTOM,   0, 239 },
         { PFCTP_PSH3_FB_RIGHT, PFCTP_PSH3_FB_BOTTOM, 639, 239 }}
};


#ifndef PFCTP_J6X0_SETTINGS_ICON_KEYSYM
#define PFCTP_J6X0_SETTINGS_ICON_KEYSYM KS_Home
#endif
#ifndef PFCTP_J6X0_PGUP_ICON_KEYSYM
#define PFCTP_J6X0_PGUP_ICON_KEYSYM     KS_Prior
#endif
#ifndef PFCTP_J6X0_PGDN_ICON_KEYSYM
#define PFCTP_J6X0_PGDN_ICON_KEYSYM     KS_Next
#endif
#ifndef PFCTP_J6X0_SWITCH_ICON_KEYSYM
#define PFCTP_J6X0_SWITCH_ICON_KEYSYM   KS_End
#endif

static const keysym_t pfctp_j6x0_wskbd_keydesc[] = {
        KS_KEYCODE(1), PFCTP_J6X0_SETTINGS_ICON_KEYSYM,
        KS_KEYCODE(2), PFCTP_J6X0_PGUP_ICON_KEYSYM,
        KS_KEYCODE(3), PFCTP_J6X0_PGDN_ICON_KEYSYM,
        KS_KEYCODE(4), PFCTP_J6X0_SWITCH_ICON_KEYSYM
};

static const struct wscons_keydesc pfctp_j6x0_wskbd_keydesctab[] = {
        { KB_US, 0,
          sizeof(pfctp_j6x0_wskbd_keydesc)/sizeof(keysym_t),
          pfctp_j6x0_wskbd_keydesc
        },
        {0, 0, 0, 0}
};

static const struct wskbd_mapdata pfctp_j6x0_wskbd_keymapdata = {
        pfctp_j6x0_wskbd_keydesctab, KB_US
};

/* pfctp any values table. this values is platfrom specific. */
static const struct {
        platid_mask_t *platform;
        int irq;
        int intevt;
        struct wsmouse_calibcoords *default_calib;
        struct wskbd_mapdata *wskbd_keymap;
        int (*get_stat)(void);
        int (*get_touched)(struct pfctp_softc *, int *);
        void (*get_raw_xy)(int *, int *);
        int (*get_hard_icon)(int, int);
} pfctp_values_table[] = {
        { &platid_mask_MACH_HP_JORNADA_6XX,
            IRR0_IRQ3,                  SH7709_INTEVT2_IRQ3,
            __UNCONST(&pfctp_j6x0_default_calib),
            __UNCONST(&pfctp_j6x0_wskbd_keymapdata),
            pfctp_j6x0_get_stat,        pfctp_j6x0_get_touched,
            pfctp_j6x0_get_raw_xy,      pfctp_j6x0_get_hard_icon        },
        { &platid_mask_MACH_HITACHI_PERSONA,
            IRR0_IRQ2,                  SH7709_INTEVT2_IRQ2,
            __UNCONST(&pfctp_psh3_default_calib),
            NULL,
            pfctp_psh3_get_stat,        pfctp_psh3_get_touched, 
            pfctp_psh3_get_raw_xy,      NULL                            }
};


CFATTACH_DECL(pfctp, sizeof(struct pfctp_softc),
    pfctp_match, pfctp_attach, NULL, NULL);


static int
pfctp_match(struct device *parent, struct cfdata *cf, void *aux)
{
        int i, n = sizeof(pfctp_values_table) / sizeof(pfctp_values_table[0]);

        /*
         * XXX: does platid_mask_MACH_HP_LX matches _JORNADA_6XX too?
         * Is 620 wired similarly?
         */
        for (i = 0; i < n; i++)
                if (platid_match(&platid, pfctp_values_table[i].platform))
                        break;
        if (i == n)
                return (0);

        if (strcmp(cf->cf_name, "pfctp") != 0)
                return (0);

        return (1);
}


/*
 * Attach the touch panel driver and its ws* children.
 *
 * Note that we have to use submatch to distinguish between children
 * because ws{kbd,mouse}_match match unconditionally.
 */
static void
pfctp_attach(struct device *parent, struct device *self, void *aux)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;
        struct wsmousedev_attach_args wsma;
        struct wskbddev_attach_args wska;
        int i, n = sizeof(pfctp_values_table) / sizeof(pfctp_values_table[0]);

        for (i = 0; i < n; i++)
                if (platid_match(&platid, pfctp_values_table[i].platform))
                        break;

        printf("\n");

        sc->sc_enabled = 0;
        sc->sc_hard_icon = 0;
        sc->sc_irq = pfctp_values_table[i].irq;
        sc->sc_intevt = pfctp_values_table[i].intevt;
        sc->sc_default_calib = pfctp_values_table[i].default_calib;
        sc->sc_wskbd_keymap = pfctp_values_table[i].wskbd_keymap;
        sc->sc_get_stat = pfctp_values_table[i].get_stat;
        sc->sc_get_touched = pfctp_values_table[i].get_touched;
        sc->sc_get_raw_xy = pfctp_values_table[i].get_raw_xy;
        sc->sc_get_hard_icon = pfctp_values_table[i].get_hard_icon;

        /* touch-panel as a pointing device */
        wsma.accessops = &pfctp_accessops;
        wsma.accesscookie = sc;

        sc->sc_wsmousedev = config_found_sm(
            self, &wsma, wsmousedevprint, pfctp_wsmouse_submatch);
        if (sc->sc_wsmousedev == NULL)
                return;

        if (sc->sc_wskbd_keymap != NULL) {
                /* on-screen "hard icons" as a keyboard device */
                wska.console = 0;
                wska.keymap = sc->sc_wskbd_keymap;
                wska.accessops = &pfctp_wskbd_accessops;
                wska.accesscookie = sc;

                sc->sc_wskbddev = config_found_sm(
                    self, &wska, wskbddevprint, pfctp_wskbd_submatch);
        }

        /* init calibration, set default parameters */
        tpcalib_init(&sc->sc_tpcalib);
        tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
            (caddr_t)__UNCONST(sc->sc_default_calib), 0, 0);

        /* used when in polling mode */
        callout_init(&sc->sc_touch_ch);

        /* establish interrupt handler, but disable until opened */
        intc_intr_establish(
            sc->sc_intevt, IST_EDGE, IPL_TTY, pfctp_intr, sc);
        intc_intr_disable(sc->sc_intevt);
}


static int
pfctp_wsmouse_submatch(struct device *parent, struct cfdata *cf, void *aux)
{

        return (!strcmp(cf->cf_name, "wsmouse"));
}


static int
pfctp_wskbd_submatch(struct device *parent, struct cfdata *cf, void *aux)
{

        return (!strcmp(cf->cf_name, "wskbd"));
}


/*
 * Enable touch panel:  we start in interrupt mode.
 * Must be called at spltty().
 */
static void
pfctp_enable(struct pfctp_softc *sc)
{

        DPRINTFN(2, ("%s: enable\n", sc->sc_dev.dv_xname));
        intc_intr_enable(sc->sc_intevt);
}


/*
 * Disable touch panel: disable interrupt, cancel pending callout.
 * Must be called at spltty().
 */
static void
pfctp_disable(struct pfctp_softc *sc)
{

        DPRINTFN(2, ("%s: disable\n", sc->sc_dev.dv_xname));
        intc_intr_disable(sc->sc_intevt);
        callout_stop(&sc->sc_touch_ch);
}


static int
pfctp_set_enable(struct pfctp_softc *sc, int on, int child)
{
        int s = spltty();

        if (on) {
                if (!sc->sc_enabled)
                        pfctp_enable(sc);
                sc->sc_enabled |= child;
        } else {
                sc->sc_enabled &= ~child;
                if (!sc->sc_enabled)
                        pfctp_disable(sc);
        }

        splx(s);
        return (0);
}


static int
pfctp_wsmouse_enable(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;

        DPRINTFN(1, ("%s: wsmouse enable\n", sc->sc_dev.dv_xname));
        return (pfctp_set_enable(sc, 1, PFCTP_WSMOUSE_ENABLED));
}


static void
pfctp_wsmouse_disable(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;

        DPRINTFN(1, ("%s: wsmouse disable\n", sc->sc_dev.dv_xname));
        pfctp_set_enable(sc, 0, PFCTP_WSMOUSE_ENABLED);
}


static int
pfctp_wskbd_enable(void *self, int on)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;

        DPRINTFN(1, ("%s: wskbd %sable\n",
            sc->sc_dev.dv_xname, on ? "en" : "dis"));
        return (pfctp_set_enable(sc, on, PFCTP_WSKBD_ENABLED));
}


static int
pfctp_intr(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;
        int touched, sflag = 0;
        uint8_t irr0;

        irr0 = _reg_read_1(SH7709_IRR0);
        if ((irr0 & sc->sc_irq) == 0) {
#ifdef DIAGNOSTIC
                printf("%s: irr0 %02x?\n", sc->sc_dev.dv_xname, irr0);
#endif
                return (0);
        }

        if (!sc->sc_enabled) {
                DPRINTFN(1, ("%s: intr: !sc_enabled\n", sc->sc_dev.dv_xname));
                intc_intr_disable(sc->sc_intevt);
                goto served;
        }

        touched = sc->sc_get_touched(sc, &sflag);
        if (sflag)
                goto served;

        if (touched) {
                intc_intr_disable(sc->sc_intevt);

                /*
                 * ADC readings are not stable yet, so schedule
                 * callout instead of accessing ADC from the interrupt
                 * handler only to immediately delay().
                 */
                callout_reset(&sc->sc_touch_ch, hz/32, pfctp_start_polling, sc);
        } else
                DPRINTFN(1, ("%s: tremor\n", sc->sc_dev.dv_xname));
served:
        /* clear the interrupt (XXX: protect access?) */
        _reg_write_1(SH7709_IRR0, irr0 & ~sc->sc_irq);

        return (1);
}


/*
 * Called from the interrupt handler at spltty() upon first touch.
 * Decide if we are going to report this touch as a mouse click/drag
 * or as a key press.
 */
static void
pfctp_start_polling(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;
        int do_mouse, do_kbd;
        int rawx, rawy;
        int icon = 0;

        if (!sc->sc_get_stat()) {
                DPRINTFN(2, ("%s: start: pen is not down\n",
                    sc->sc_dev.dv_xname));
                pfctp_stop_polling(sc);
        }

        sc->sc_get_raw_xy(&rawx, &rawy);
        DPRINTFN(2, ("%s: start: %4d %4d -> ",
            sc->sc_dev.dv_xname, rawx, rawy));

        do_mouse = sc->sc_enabled & PFCTP_WSMOUSE_ENABLED;
        if (sc->sc_wskbd_keymap == NULL) {
#ifdef PFCTP_WSMOUSE_EXCLUSIVE
                if (do_mouse)
                        do_kbd = 0;
                else
#endif
                        do_kbd = sc->sc_enabled & PFCTP_WSKBD_ENABLED;

                if (do_kbd)
                        icon = sc->sc_get_hard_icon(rawx, rawy);
        }

        if (icon != 0) {
                DPRINTFN(2, ("icon %d\n", icon));
                sc->sc_hard_icon = icon;
                wskbd_input(sc->sc_wskbddev, WSCONS_EVENT_KEY_DOWN, icon);
                callout_reset(&sc->sc_touch_ch, hz/32, pfctp_callout_wskbd, sc);
        } else if (do_mouse) {
                DPRINTFN(2, ("mouse\n"));
                pfctp_wsmouse_input(sc, rawx, rawy);
                callout_reset(&sc->sc_touch_ch,
                    hz/32, pfctp_callout_wsmouse, sc);
        } else {
                DPRINTFN(2, ("ignore\n"));
                pfctp_stop_polling(sc);
        }
}


/*
 * Re-enable touch panel interrupt.
 * Called at spltty() when polling code detects pen-up.
 */
static void
pfctp_stop_polling(struct pfctp_softc *sc)
{
        uint8_t irr0;

        DPRINTFN(2, ("%s: stop\n", sc->sc_dev.dv_xname));

        /* clear pending interrupt signal before re-enabling the interrupt */
        irr0 = _reg_read_1(SH7709_IRR0);
        if ((irr0 & sc->sc_irq) != 0)
                _reg_write_1(SH7709_IRR0, irr0 & ~sc->sc_irq);

        intc_intr_enable(sc->sc_intevt);
}


/*
 * We are reporting this touch as a keyboard event.
 * Poll touch screen waiting for pen-up.
 */
static void
pfctp_callout_wskbd(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;
        int s;

        s = spltty();

        if (!sc->sc_enabled) {
                DPRINTFN(1, ("%s: wskbd callout: !sc_enabled\n",
                    sc->sc_dev.dv_xname));
                splx(s);
                return;
        }

        if (sc->sc_get_stat()) {
                /*
                 * Pen is still down, continue polling.  Wskbd's
                 * auto-repeat takes care of repeating the key.
                 */
                callout_schedule(&sc->sc_touch_ch, hz/32);
        } else {
                wskbd_input(sc->sc_wskbddev,
                    WSCONS_EVENT_KEY_UP, sc->sc_hard_icon);
                pfctp_stop_polling(sc);
        }
        splx(s);
}


/*
 * We are reporting this touch as a mouse click/drag.
 */
static void
pfctp_callout_wsmouse(void *self)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;
        int rawx, rawy;
        int s;

        s = spltty();

        if (!sc->sc_enabled) {
                DPRINTFN(1, ("%s: wsmouse callout: !sc_enabled\n",
                    sc->sc_dev.dv_xname));
                splx(s);
                return;
        }

        if (sc->sc_get_stat()) {
                sc->sc_get_raw_xy(&rawx, &rawy);
                pfctp_wsmouse_input(sc, rawx, rawy); /* mouse dragged */
                callout_schedule(&sc->sc_touch_ch, hz/32);
        } else {
                wsmouse_input(/* button up */
                    sc->sc_wsmousedev, 0, 0, 0, 0, WSMOUSE_INPUT_DELTA);
                pfctp_stop_polling(sc);
        }
        splx(s);
}


/*
 * Report mouse click/drag.
 */
static void
pfctp_wsmouse_input(struct pfctp_softc *sc, int rawx, int rawy)
{
        int x, y;

        tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
                
        DPRINTFN(3, ("%s: %4d %4d -> %3d %3d\n",
            sc->sc_dev.dv_xname, rawx, rawy, x, y));

        wsmouse_input(sc->sc_wsmousedev,
                      1,        /* button */
                      x, y,
                      0,        /* flags */
                      WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
}


static int
pfctp_wsmouse_ioctl(void *self, u_long cmd, caddr_t data, int flag,
                     struct proc *p)
{
        struct pfctp_softc *sc = (struct pfctp_softc *)self;

        return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, p);
}


static int
pfctp_wskbd_ioctl(void *self, u_long cmd, caddr_t data, int flag,
                     struct proc *p)
{
        /* struct pfcp_softc *sc = (struct pfctp_softc *)self; */

        switch (cmd) {
        case WSKBDIO_GTYPE:
                *(int *)data = WSKBD_TYPE_HPC_BTN; /* may be use new type? */
                return (0);

        case WSKBDIO_GETLEDS:
                *(int *)data = 0;
                return (0);

        default:
                return (EPASSTHROUGH);
        }
}


static void
pfctp_wskbd_set_leds(void *self, int leds)
{

        /* nothing to do*/
        return;
}


/*
 * platid independent routines.
 */
/*
 * Jornada 6x0 routines.
 */
static int
pfctp_j6x0_get_stat()
{
        uint8_t phdr;

        phdr = _reg_read_1(SH7709_PHDR);
        return(phdr & PFCTP_J6X0_PEN_DOWN);
}

static int
pfctp_j6x0_get_touched(struct pfctp_softc *sc, int *served)
{
        uint8_t phdr, touched;
        unsigned int steady, tremor_timeout;

        /*
         * Number of times the "touched" bit should be read
         * consecutively.
         */
#define J6X0_TREMOR_THRESHOLD 0x300

        steady = 0;
        tremor_timeout = J6X0_TREMOR_THRESHOLD * 16;    /* XXX: arbitrary */
        touched = PFCTP_J6X0_PEN_DOWN;/* we start with "touched" state */

        do {
                phdr = _reg_read_1(SH7709_PHDR);

                if ((phdr & PFCTP_J6X0_PEN_DOWN) == touched)
                        ++steady;
                else {
                        steady = 0;
                        touched = phdr & PFCTP_J6X0_PEN_DOWN;
                }

                if (--tremor_timeout == 0) {
                        DPRINTF(("%s: tremor timeout!\n", sc->sc_dev.dv_xname));
                        *served = 1;
                        return (0);
                }
        } while (steady < J6X0_TREMOR_THRESHOLD);

        return (touched);
}

/*
 * Read raw X/Y coordinates from the ADC.
 * XXX: protect accesses to SCPDR?
 */
static void
pfctp_j6x0_get_raw_xy(int *rawxp, int *rawyp)
{
        uint8_t scpdr;

        /* Y axis */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr |=  PFCTP_J6X0_SCAN_ENABLE;
        scpdr &= ~PFCTP_J6X0_SCAN_Y; /* pull low to scan */
        _reg_write_1(SH7709_SCPDR, scpdr);
        delay(10);

        *rawyp = adc_sample_channel(PFCTP_J6X0_ADC_CHANNEL_TP_Y);

        /* X axis */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr |=  PFCTP_J6X0_SCAN_Y;
        scpdr &= ~PFCTP_J6X0_SCAN_X; /* pull low to scan */
        _reg_write_1(SH7709_SCPDR, scpdr);
        delay(10);

        *rawxp = adc_sample_channel(PFCTP_J6X0_ADC_CHANNEL_TP_X);

        /* restore SCPDR */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr |=  PFCTP_J6X0_SCAN_X;
        scpdr &= ~PFCTP_J6X0_SCAN_ENABLE;
        _reg_write_1(SH7709_SCPDR, scpdr);
}


/*
 * Check if the (rawx, rawy) is inside one of the 4 hard icons.
 * Return the icon number 1..4, or 0 if not inside an icon.
 */
static int
pfctp_j6x0_get_hard_icon(int rawx, int rawy)
{
        if (rawx <= PFCTP_J6X0_FB_RIGHT)
                return (0);

        if (rawy < PFCTP_J6X0_HARD_ICON_MAX_Y(1))
                return (1);
        else if (rawy < PFCTP_J6X0_HARD_ICON_MAX_Y(2))
                return (2);
        else if (rawy < PFCTP_J6X0_HARD_ICON_MAX_Y(3))
                return (3);
        else
                return (4);
}


/*
 * PERSONA SH3 machine routines.
 */

static int
pfctp_psh3_get_stat()
{
        uint8_t phdr;

        phdr = _reg_read_1(SH7709_PHDR);
        return ((phdr & PFCTP_PSH3_PEN_UP) != PFCTP_PSH3_PEN_UP);

}

static int
pfctp_psh3_get_touched(struct pfctp_softc *sc, int *served)
{
        uint8_t phdr, touched;
        unsigned int steady, tremor_timeout;

        /*
         * Number of times the "touched" bit should be read
         * consecutively.
         */
#define PSH3_TREMOR_THRESHOLD 0x300
        steady = 0;
        tremor_timeout = PSH3_TREMOR_THRESHOLD * 16;    /* XXX: arbitrary */
        touched = TRUE;                 /* we start with "touched" state */

        do {
                uint8_t state;

                phdr = _reg_read_1(SH7709_PHDR);
                state = ((phdr & PFCTP_PSH3_PEN_UP) != PFCTP_PSH3_PEN_UP);

                if (state == touched)
                        ++ steady;
                else {
                        steady = 0;
                        touched = state;
                }

                if (-- tremor_timeout == 0) {
                        DPRINTF(("%s: tremor timeout!\n", sc->sc_dev.dv_xname));
                        *served = 1;
                        return (0);
                }
        } while (steady < PSH3_TREMOR_THRESHOLD);

        return (touched);
}

/*
 * Read raw X/Y coordinates from the ADC.
 */
static void
pfctp_psh3_get_raw_xy(int *rawxp, int *rawyp)
{
        uint8_t scpdr;

        /* X axis */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr &= ~PFCTP_PSH3_SCAN_DISABLE;
        scpdr |= (PFCTP_PSH3_SCAN_ENABLE | PFCTP_PSH3_SCAN_X);
        _reg_write_1(SH7709_SCPDR, scpdr);
        delay(40);

        *rawxp = adc_sample_channel(PFCTP_PSH3_ADC_CHANNEL_TP_X);

        /* Y axis */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr &=  ~PFCTP_PSH3_SCAN_X;
        scpdr |= (PFCTP_PSH3_SCAN_ENABLE | PFCTP_PSH3_SCAN_Y);
        _reg_write_1(SH7709_SCPDR, scpdr);
        delay(40);

        *rawyp = adc_sample_channel(PFCTP_PSH3_ADC_CHANNEL_TP_Y);

        /* restore SCPDR */
        scpdr = _reg_read_1(SH7709_SCPDR);
        scpdr &= ~(PFCTP_PSH3_SCAN_ENABLE | PFCTP_PSH3_SCAN_Y);
        scpdr |= PFCTP_PSH3_SCAN_DISABLE;
        _reg_write_1(SH7709_SCPDR, scpdr);
}


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