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NetBSD/sys/arch/hpcarm/dev/j720tp.c

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/* $NetBSD: j720tp.c,v 1.8 2007/10/26 10:39:40 peter Exp $ */
/*-
* Copyright (c) 2006 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by IWAMOTO Toshihiro and Peter Postma.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``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 FOUNDATION OR CONTRIBUTORS
* 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.
*/
/* Jornada 720 touch-panel driver. */
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: j720tp.c,v 1.8 2007/10/26 10:39:40 peter Exp $");
#ifdef _KERNEL_OPT
#include "opt_j720tp.h"
#include "opt_wsdisplay_compat.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/ioctl.h>
#include <sys/callout.h>
#include <sys/sysctl.h>
#include <machine/platid.h>
#include <machine/platid_mask.h>
#include <arm/sa11x0/sa11x0_var.h>
#include <arm/sa11x0/sa11x0_gpioreg.h>
#include <arm/sa11x0/sa11x0_ppcreg.h>
#include <arm/sa11x0/sa11x0_sspreg.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 <hpcarm/dev/j720sspvar.h>
#ifdef WSDISPLAY_COMPAT_RAWKBD
#include <dev/hpc/pckbd_encode.h>
#endif
#define arraysize(ary) (sizeof(ary) / sizeof(ary[0]))
#ifdef J720TP_DEBUG
int j720tp_debug = 0;
#define DPRINTF(arg) if (j720tp_debug) printf arg
#define DPRINTFN(n, arg) if (j720tp_debug >= (n)) printf arg
#else
#define DPRINTF(arg) /* nothing */
#define DPRINTFN(n, arg) /* nothing */
#endif
struct j720tp_softc {
struct device sc_dev;
#define J720TP_WSMOUSE_ENABLED 0x01
#define J720TP_WSKBD_ENABLED 0x02
int sc_enabled;
int sc_hard_icon;
#ifdef WSDISPLAY_COMPAT_RAWKBD
int sc_rawkbd;
#endif
struct callout sc_tpcallout;
struct j720ssp_softc *sc_ssp;
struct device *sc_wsmousedev;
struct device *sc_wskbddev;
struct tpcalib_softc sc_tpcalib;
};
static int j720tp_match(struct device *, struct cfdata *, void *);
static void j720tp_attach(struct device *, struct device *, void *);
static int j720tp_wsmouse_enable(void *);
static int j720tp_wsmouse_ioctl(void *, u_long, void *, int,
struct lwp *);
static void j720tp_wsmouse_disable(void *);
static int j720tp_wskbd_enable(void *, int);
static void j720tp_wskbd_set_leds(void *, int);
static int j720tp_wskbd_ioctl(void *, u_long, void *, int, struct lwp *);
static void j720tp_enable_intr(struct j720tp_softc *);
static void j720tp_disable_intr(struct j720tp_softc *);
static int j720tp_intr(void *);
static int j720tp_get_rawxy(struct j720tp_softc *, int *, int *);
static int j720tp_get_hard_icon(struct j720tp_softc *, int, int);
static void j720tp_wsmouse_input(struct j720tp_softc *, int, int);
static void j720tp_wsmouse_callout(void *);
static void j720tp_wskbd_input(struct j720tp_softc *, u_int);
static void j720tp_wskbd_callout(void *);
const struct wsmouse_accessops j720tp_wsmouse_accessops = {
j720tp_wsmouse_enable,
j720tp_wsmouse_ioctl,
j720tp_wsmouse_disable
};
static const struct wsmouse_calibcoords j720tp_default_calib = {
0, 0, 639, 239,
4,
{{ 988, 80, 0, 0 },
{ 88, 84, 639, 0 },
{ 988, 927, 0, 239 },
{ 88, 940, 639, 239 }}
};
const struct wskbd_accessops j720tp_wskbd_accessops = {
j720tp_wskbd_enable,
j720tp_wskbd_set_leds,
j720tp_wskbd_ioctl
};
#ifndef J720TP_SETTINGS_ICON_KEYSYM
#define J720TP_SETTINGS_ICON_KEYSYM KS_Home
#endif
#ifndef J720TP_BACKUP_ICON_KEYSYM
#define J720TP_BACKUP_ICON_KEYSYM KS_Prior
#endif
#ifndef J720TP_DIALUP_ICON_KEYSYM
#define J720TP_DIALUP_ICON_KEYSYM KS_Next
#endif
#ifndef J720TP_MEDIA_ICON_KEYSYM
#define J720TP_MEDIA_ICON_KEYSYM KS_End
#endif
/* Max Y value of the n'th hard icon. */
#define J720TP_HARD_ICON_MAX_Y(n) \
(((j720tp_hard_icon_bottom - j720tp_hard_icon_top) / 4) * (n)) + \
j720tp_hard_icon_top
/* Default raw X/Y values of the hard icon area. */
static int j720tp_hard_icon_left = 70;
static int j720tp_hard_icon_right = 20;
static int j720tp_hard_icon_top = 70;
static int j720tp_hard_icon_bottom = 940;
/* Maps the icon number to a raw keycode. */
static const int j720tp_wskbd_keys[] = {
/* Icon 1 */ 199,
/* Icon 2 */ 201,
/* Icon 3 */ 209,
/* Icon 4 */ 207
};
static const keysym_t j720tp_wskbd_keydesc[] = {
KS_KEYCODE(199), J720TP_SETTINGS_ICON_KEYSYM,
KS_KEYCODE(201), J720TP_BACKUP_ICON_KEYSYM,
KS_KEYCODE(209), J720TP_DIALUP_ICON_KEYSYM,
KS_KEYCODE(207), J720TP_MEDIA_ICON_KEYSYM
};
const struct wscons_keydesc j720tp_wskbd_keydesctab[] = {
{ KB_US, 0,
sizeof(j720tp_wskbd_keydesc) / sizeof(keysym_t),
j720tp_wskbd_keydesc
},
{ 0, 0, 0, 0 }
};
const struct wskbd_mapdata j720tp_wskbd_keymapdata = {
j720tp_wskbd_keydesctab, KB_US
};
CFATTACH_DECL(j720tp, sizeof(struct j720tp_softc),
j720tp_match, j720tp_attach, NULL, NULL);
static int
j720tp_match(struct device *parent, struct cfdata *cf, void *aux)
{
if (!platid_match(&platid, &platid_mask_MACH_HP_JORNADA_7XX))
return 0;
if (strcmp(cf->cf_name, "j720tp") != 0)
return 0;
return 1;
}
static void
j720tp_attach(struct device *parent, struct device *self, void *aux)
{
struct j720tp_softc *sc = (struct j720tp_softc *)self;
struct wsmousedev_attach_args wsma;
struct wskbddev_attach_args wska;
printf("\n");
sc->sc_ssp = (struct j720ssp_softc *)parent;
sc->sc_enabled = 0;
sc->sc_hard_icon = 0;
sc->sc_rawkbd = 0;
/* Touch-panel as a pointing device. */
wsma.accessops = &j720tp_wsmouse_accessops;
wsma.accesscookie = sc;
sc->sc_wsmousedev = config_found_ia(self, "wsmousedev", &wsma,
wsmousedevprint);
if (sc->sc_wsmousedev == NULL)
return;
/* Initialize calibration, set default parameters. */
tpcalib_init(&sc->sc_tpcalib);
tpcalib_ioctl(&sc->sc_tpcalib, WSMOUSEIO_SCALIBCOORDS,
__UNCONST(&j720tp_default_calib), 0, 0);
callout_init(&sc->sc_tpcallout, 0);
j720tp_wsmouse_disable(sc);
/* On-screen "hard icons" as a keyboard device. */
wska.console = 0;
wska.keymap = &j720tp_wskbd_keymapdata;
wska.accessops = &j720tp_wskbd_accessops;
wska.accesscookie = sc;
sc->sc_wskbddev = config_found_ia(self, "wskbddev", &wska,
wskbddevprint);
/* Setup touch-panel interrupt. */
sa11x0_intr_establish(0, 9, 1, IPL_TTY, j720tp_intr, sc);
}
static int
j720tp_wsmouse_enable(void *self)
{
struct j720tp_softc *sc = self;
int s;
s = spltty();
j720tp_enable_intr(sc);
sc->sc_enabled |= J720TP_WSMOUSE_ENABLED;
splx(s);
return 0;
}
static int
j720tp_wsmouse_ioctl(void *self, u_long cmd, void *data, int flag,
struct lwp *l)
{
struct j720tp_softc *sc = self;
return hpc_tpanel_ioctl(&sc->sc_tpcalib, cmd, data, flag, l);
}
static void
j720tp_wsmouse_disable(void *self)
{
struct j720tp_softc *sc = self;
int s;
s = spltty();
j720tp_disable_intr(sc);
callout_stop(&sc->sc_tpcallout);
sc->sc_enabled &= ~J720TP_WSMOUSE_ENABLED;
splx(s);
}
static int
j720tp_wskbd_enable(void *self, int on)
{
struct j720tp_softc *sc = self;
int s;
s = spltty();
sc->sc_enabled |= J720TP_WSKBD_ENABLED;
splx(s);
return 0;
}
static void
j720tp_wskbd_set_leds(void *self, int leds)
{
/* nothing to do */
}
static int
j720tp_wskbd_ioctl(void *self, u_long cmd, void *data, int flag,
struct lwp *l)
{
#ifdef WSDISPLAY_COMPAT_RAWKBD
struct j720tp_softc *sc = self;
#endif
switch (cmd) {
case WSKBDIO_GTYPE:
*(int *)data = WSKBD_TYPE_HPC_BTN;
return 0;
case WSKBDIO_GETLEDS:
*(int *)data = 0;
return 0;
#ifdef WSDISPLAY_COMPAT_RAWKBD
case WSKBDIO_SETMODE:
sc->sc_rawkbd = (*(int *)data == WSKBD_RAW);
return 0;
#endif
}
return EPASSTHROUGH;
}
/*
* Enable touch-panel interrupt. Must be called at spltty().
*/
static void
j720tp_enable_intr(struct j720tp_softc *sc)
{
struct j720ssp_softc *ssp = sc->sc_ssp;
uint32_t er;
er = bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER);
er |= 1 << 9;
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, er);
}
/*
* Disable touch-panel interrupt. Must be called at spltty().
*/
static void
j720tp_disable_intr(struct j720tp_softc *sc)
{
struct j720ssp_softc *ssp = sc->sc_ssp;
uint32_t er;
er = bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER);
er &= ~(1 << 9);
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_FER, er);
}
static int
j720tp_intr(void *arg)
{
struct j720tp_softc *sc = arg;
struct j720ssp_softc *ssp = sc->sc_ssp;
int rawx, rawy;
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_EDR, 1 << 9);
if (!(sc->sc_enabled & J720TP_WSMOUSE_ENABLED)) {
DPRINTF(("j720tp_intr: !sc_enabled\n"));
return 0;
}
j720tp_disable_intr(sc);
if (j720tp_get_rawxy(sc, &rawx, &rawy)) {
sc->sc_hard_icon = j720tp_get_hard_icon(sc, rawx, rawy);
if (sc->sc_hard_icon > 0) {
j720tp_wskbd_input(sc, WSCONS_EVENT_KEY_DOWN);
callout_reset(&sc->sc_tpcallout, hz / 32,
j720tp_wskbd_callout, sc);
} else {
j720tp_wsmouse_input(sc, rawx, rawy);
callout_reset(&sc->sc_tpcallout, hz / 32,
j720tp_wsmouse_callout, sc);
}
}
return 1;
}
static int
j720tp_get_rawxy(struct j720tp_softc *sc, int *rawx, int *rawy)
{
struct j720ssp_softc *ssp = sc->sc_ssp;
int buf[8], data, i;
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PCR, 0x2000000);
/* Send read touch-panel command. */
if (j720ssp_readwrite(ssp, 1, 0xa0, &data, 100) < 0 || data != 0x11) {
DPRINTF(("j720tp_get_rawxy: no dummy received\n"));
goto out;
}
for (i = 0; i < 8; i++) {
if (j720ssp_readwrite(ssp, 0, 0x11, &data, 100) < 0)
goto out;
buf[i] = data;
}
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000);
buf[6] <<= 8;
buf[7] <<= 8;
for (i = 0; i < 3; i++) {
buf[i] |= buf[6] & 0x300;
buf[6] >>= 2;
buf[i + 3] |= buf[7] & 0x300;
buf[7] >>= 2;
}
DPRINTFN(2, ("j720tp_get_rawxy: %d:%d:%d:%d:%d:%d:%d:%d\n",
buf[0], buf[1], buf[2], buf[3], buf[4], buf[5], buf[6], buf[7]));
*rawx = buf[1];
*rawy = buf[4];
return 1;
out:
bus_space_write_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PSR, 0x2000000);
/* reset SSP */
bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x307);
delay(100);
bus_space_write_4(ssp->sc_iot, ssp->sc_ssph, SASSP_CR0, 0x387);
DPRINTF(("j720tp_get_rawxy: error %x\n", data));
return 0;
}
static int
j720tp_get_hard_icon(struct j720tp_softc *sc, int rawx, int rawy)
{
int icon = 0;
if (!(sc->sc_enabled & J720TP_WSKBD_ENABLED))
return 0;
/* Check if the touch was in the hard icons area. */
if (rawx > j720tp_hard_icon_left)
return 0;
if (rawy < J720TP_HARD_ICON_MAX_Y(1))
icon = 1;
else if (rawy < J720TP_HARD_ICON_MAX_Y(2))
icon = 2;
else if (rawy < J720TP_HARD_ICON_MAX_Y(3))
icon = 3;
else if (rawy < J720TP_HARD_ICON_MAX_Y(4))
icon = 4;
return icon;
}
static void
j720tp_wsmouse_input(struct j720tp_softc *sc, int rawx, int rawy)
{
int x, y;
tpcalib_trans(&sc->sc_tpcalib, rawx, rawy, &x, &y);
wsmouse_input(sc->sc_wsmousedev, 1, x, y, 0, 0,
WSMOUSE_INPUT_ABSOLUTE_X | WSMOUSE_INPUT_ABSOLUTE_Y);
}
static void
j720tp_wsmouse_callout(void *arg)
{
struct j720tp_softc *sc = arg;
struct j720ssp_softc *ssp = sc->sc_ssp;
int rawx, rawy, s;
s = spltty();
if (!(sc->sc_enabled & J720TP_WSMOUSE_ENABLED)) {
DPRINTF(("j720tp_wsmouse_callout: !sc_enabled\n"));
splx(s);
return;
}
if (bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PLR) & (1<<9)) {
wsmouse_input(sc->sc_wsmousedev, 0, 0, 0, 0, 0, 0);
j720tp_enable_intr(sc);
} else {
if (j720tp_get_rawxy(sc, &rawx, &rawy))
j720tp_wsmouse_input(sc, rawx, rawy);
callout_schedule(&sc->sc_tpcallout, hz / 32);
}
splx(s);
}
static void
j720tp_wskbd_input(struct j720tp_softc *sc, u_int evtype)
{
int key = j720tp_wskbd_keys[sc->sc_hard_icon - 1];
#ifdef WSDISPLAY_COMPAT_RAWKBD
if (sc->sc_rawkbd) {
int n;
u_char data[16];
n = pckbd_encode(evtype, key, data);
wskbd_rawinput(sc->sc_wskbddev, data, n);
} else
#endif
wskbd_input(sc->sc_wskbddev, evtype, key);
}
static void
j720tp_wskbd_callout(void *arg)
{
struct j720tp_softc *sc = arg;
struct j720ssp_softc *ssp = sc->sc_ssp;
int s;
s = spltty();
if (!sc->sc_enabled) {
DPRINTF(("j720tp_wskbd_callout: !sc_enabled\n"));
splx(s);
return;
}
if (bus_space_read_4(ssp->sc_iot, ssp->sc_gpioh, SAGPIO_PLR) & (1<<9)) {
j720tp_wskbd_input(sc, WSCONS_EVENT_KEY_UP);
j720tp_enable_intr(sc);
} else {
callout_schedule(&sc->sc_tpcallout, hz / 32);
}
splx(s);
}
SYSCTL_SETUP(sysctl_j720tp, "sysctl j720tp subtree setup")
{
const struct sysctlnode *rnode;
int rc;
if ((rc = sysctl_createv(clog, 0, NULL, &rnode,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL,
NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0)
goto err;
if ((rc = sysctl_createv(clog, 0, &rnode, &rnode,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "j720tp",
SYSCTL_DESCR("Jornada 720 touch panel controls"),
NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
#ifdef J720TP_DEBUG
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "debug",
SYSCTL_DESCR("Verbosity of debugging messages"),
NULL, 0, &j720tp_debug, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
#endif /* J720TP_DEBUG */
if ((rc = sysctl_createv(clog, 0, &rnode, &rnode,
CTLFLAG_PERMANENT, CTLTYPE_NODE, "hard_icons",
SYSCTL_DESCR("Touch panel hard icons controls"),
NULL, 0, NULL, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "left",
SYSCTL_DESCR("Raw left X value of the hard icon area"),
NULL, 0, &j720tp_hard_icon_left, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "right",
SYSCTL_DESCR("Raw right X value of the hard icon area"),
NULL, 0, &j720tp_hard_icon_right, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "top",
SYSCTL_DESCR("Raw top Y value of the hard icon area"),
NULL, 0, &j720tp_hard_icon_top, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
if ((rc = sysctl_createv(clog, 0, &rnode, NULL,
CTLFLAG_PERMANENT | CTLFLAG_READWRITE, CTLTYPE_INT, "bottom",
SYSCTL_DESCR("Raw bottom Y value of the hard icon area"),
NULL, 0, &j720tp_hard_icon_bottom, 0, CTL_CREATE, CTL_EOL)) != 0)
goto err;
return;
err:
printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc);
}
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