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[src/trunk]: src/sys/arch/evbarm/tsarm Toaster inputs (burnlevel potentiomete...
details: https://anonhg.NetBSD.org/src/rev/a4b0169f1707
branches: trunk
changeset: 583601:a4b0169f1707
user: joff <joff%NetBSD.org@localhost>
date: Sun Aug 14 04:18:30 2005 +0000
description:
Toaster inputs (burnlevel potentiometer, toast down sensor) and
matrix keypad/wskbd attachment glue for polling/debouncing
the 5 front-panel buttons.
diffstat:
sys/arch/evbarm/tsarm/toastersensors.c | 305 +++++++++++++++++++++++++++++++++
1 files changed, 305 insertions(+), 0 deletions(-)
diffs (truncated from 309 to 300 lines):
diff -r a52fea81f522 -r a4b0169f1707 sys/arch/evbarm/tsarm/toastersensors.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/arch/evbarm/tsarm/toastersensors.c Sun Aug 14 04:18:30 2005 +0000
@@ -0,0 +1,305 @@
+/* $NetBSD: toastersensors.c,v 1.1 2005/08/14 04:18:30 joff Exp $ */
+
+/*-
+ * Copyright (c) 2005 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is from software contributed to The NetBSD Foundation
+ * by Jesse Off.
+ *
+ * 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.
+ */
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: toastersensors.c,v 1.1 2005/08/14 04:18:30 joff Exp $");
+
+#include <sys/param.h>
+#include <sys/sysctl.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/poll.h>
+#include <sys/conf.h>
+#include <sys/uio.h>
+#include <sys/types.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/callout.h>
+#include <sys/select.h>
+#include <sys/conf.h>
+
+#include <machine/bus.h>
+#include <machine/autoconf.h>
+
+#include <dev/wscons/wsconsio.h>
+#include <dev/wscons/wskbdvar.h>
+#include <dev/wscons/wsksymdef.h>
+#include <dev/wscons/wsksymvar.h>
+
+#include <arm/ep93xx/ep93xxreg.h>
+#include <dev/ic/matrixkpvar.h>
+#include <evbarm/tsarm/tspldvar.h>
+#include <evbarm/tsarm/tsarmreg.h>
+
+struct toastersensors_softc {
+ struct device sc_dev;
+ struct matrixkp_softc sc_mxkp;
+ bus_space_tag_t sc_iot;
+ bus_space_handle_t sc_gpioh;
+ bus_space_handle_t sc_adch;
+ u_int32_t toast_down;
+ u_int32_t burnlevel_knob;
+ u_int32_t cancel_key;
+ u_int32_t toast_key;
+ u_int32_t frozen_key;
+ u_int32_t warm_key;
+ u_int32_t bagel_key;
+ u_int32_t toast_down_ticks;
+ u_int32_t cancel_key_ticks;
+ u_int32_t toast_key_ticks;
+ u_int32_t frozen_key_ticks;
+ u_int32_t warm_key_ticks;
+ u_int32_t bagel_key_ticks;
+ struct callout poll;
+};
+
+#define KC(n) KS_KEYCODE(n)
+static const keysym_t mxkp_keydesc_default[] = {
+/* pos normal shifted */
+ KC(0), KS_f,
+ KC(1), KS_b,
+ KC(2), KS_w,
+ KC(3), KS_t,
+ KC(4), KS_c,
+};
+#undef KC
+#define KBD_MAP(name, base, map) \
+ { name, base, sizeof(map)/sizeof(keysym_t), map }
+const struct wscons_keydesc mxkp_keydesctab[] = {
+ KBD_MAP(KB_US, 0, mxkp_keydesc_default),
+ {0, 0, 0, 0}
+};
+#undef KBD_MAP
+
+struct wskbd_mapdata mxkp_keymapdata = {
+ mxkp_keydesctab,
+ KB_US,
+};
+
+static int toastersensors_match(struct device *, struct cfdata *, void *);
+static void toastersensors_attach(struct device *, struct device *, void *);
+static void toastersensors_scankeys(struct matrixkp_softc *, u_int32_t *);
+static void toastersensors_poll(void *);
+
+CFATTACH_DECL(toastersensors, sizeof(struct toastersensors_softc),
+ toastersensors_match, toastersensors_attach, NULL, NULL);
+
+static int
+toastersensors_match(parent, match, aux)
+ struct device *parent;
+ struct cfdata *match;
+ void *aux;
+{
+ return 1;
+}
+
+#define GPIO_GET(x) bus_space_read_1(sc->sc_iot, sc->sc_gpioh, \
+ (EP93XX_GPIO_ ## x))
+
+#define GPIO_SET(x, y) bus_space_write_1(sc->sc_iot, sc->sc_gpioh, \
+ (EP93XX_GPIO_ ## x), (y))
+
+#define GPIO_SETBITS(x, y) bus_space_write_1(sc->sc_iot, sc->sc_gpioh, \
+ (EP93XX_GPIO_ ## x), GPIO_GET(x) | (y))
+
+#define GPIO_CLEARBITS(x, y) bus_space_write_1(sc->sc_iot, sc->sc_gpioh, \
+ (EP93XX_GPIO_ ## x), GPIO_GET(x) & (~(y)))
+
+static void
+toastersensors_poll(arg)
+ void *arg;
+{
+ struct toastersensors_softc *sc = arg;
+
+ if (sc->cancel_key) sc->cancel_key_ticks++;
+ if (sc->toast_key) sc->toast_key_ticks++;
+ if (sc->warm_key) sc->warm_key_ticks++;
+ if (sc->frozen_key) sc->frozen_key_ticks++;
+ if (sc->bagel_key) sc->bagel_key_ticks++;
+ if (sc->toast_down) sc->toast_down_ticks++;
+
+ sc->burnlevel_knob = bus_space_read_1(sc->sc_iot, sc->sc_adch, 0) |
+ (bus_space_read_1(sc->sc_iot, sc->sc_adch, 1) << 8);
+ /* Initiate another conversion */
+ bus_space_write_1(sc->sc_iot, sc->sc_adch, 0, 0x40);
+ callout_schedule(&sc->poll, 1);
+}
+
+static void
+toastersensors_attach(parent, self, aux)
+ struct device *parent;
+ struct device *self;
+ void *aux;
+{
+ struct toastersensors_softc *sc = (void *)self;
+ struct tspld_attach_args *taa = aux;
+ struct wskbddev_attach_args wa;
+ const struct sysctlnode *node, *datnode;
+ u_int32_t i;
+
+ sc->sc_iot = taa->ta_iot;
+ if (bus_space_map(sc->sc_iot, EP93XX_APB_HWBASE + EP93XX_APB_GPIO,
+ EP93XX_APB_GPIO_SIZE, 0, &sc->sc_gpioh))
+ panic("toastersensors_attach: couldn't map GPIO registers");
+
+ if (bus_space_map(sc->sc_iot, TS7XXX_IO8_HWBASE + TS7XXX_MAX197ADC,
+ 2, 0, &sc->sc_adch))
+ panic("toastersensors_attach: couldn't map MAX197-ADC registers");
+
+ sc->sc_mxkp.mxkp_scankeys = toastersensors_scankeys;
+ sc->sc_mxkp.mxkp_event = mxkp_wskbd_event;
+ sc->sc_mxkp.mxkp_nkeys = 5;
+ sc->sc_mxkp.debounce_stable_ms = 3;
+ sc->sc_mxkp.sc_dev = self;
+ sc->sc_mxkp.poll_freq = hz;
+
+ GPIO_CLEARBITS(PBDDR, 0x3f); /* tristate all lines */
+
+ aprint_normal(": internal toaster sensor inputs\n");
+ aprint_normal("%s: using signal DIO_0 for toast down sensor\n", sc->sc_dev.dv_xname);
+ aprint_normal("%s: using signals DIO_1-DIO_5 for panel buttons\n", sc->sc_dev.dv_xname);
+ aprint_normal("%s: using 12-bit MAX197-ADC channel 0 for burnlevel knob\n", sc->sc_dev.dv_xname);
+
+ if (sysctl_createv(NULL, 0, NULL, NULL,
+ CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw",
+ NULL, NULL, 0, NULL, 0,
+ CTL_HW, CTL_EOL) != 0) {
+ printf("%s: could not create sysctl\n",
+ sc->sc_dev.dv_xname);
+ return;
+ }
+ if (sysctl_createv(NULL, 0, NULL, &node,
+ 0, CTLTYPE_NODE, sc->sc_dev.dv_xname,
+ NULL,
+ NULL, 0, NULL, 0,
+ CTL_HW, CTL_CREATE, CTL_EOL) != 0) {
+ printf("%s: could not create sysctl\n",
+ sc->sc_dev.dv_xname);
+ return;
+ }
+
+
+ if ((i = sysctl_createv(NULL, 0, NULL, &datnode,
+ 0, CTLTYPE_INT,
+ "burnlevel_knob",
+ SYSCTL_DESCR(
+ "12-bit analog reading of front-panel potentiometer"),
+ NULL, 0, &sc->burnlevel_knob, 0,
+ CTL_HW, node->sysctl_num,
+ CTL_CREATE, CTL_EOL))
+ != 0) {
+ printf("%s: could not create sysctl\n",
+ sc->sc_dev.dv_xname);
+ return;
+ }
+
+#define KEYSYSCTL_SETUP(x) if ((i = sysctl_createv(NULL, 0, NULL, &datnode, \
+ 0, CTLTYPE_INT, \
+ #x, \
+ SYSCTL_DESCR( \
+ "toaster user input sensor"), \
+ NULL, 0, &sc->x, 0, \
+ CTL_HW, node->sysctl_num, \
+ CTL_CREATE, CTL_EOL)) \
+ != 0) { \
+ printf("%s: could not create sysctl\n", \
+ sc->sc_dev.dv_xname); \
+ return; \
+ } \
+ \
+ if ((i = sysctl_createv(NULL, 0, NULL, &datnode, \
+ CTLFLAG_READWRITE, CTLTYPE_INT, \
+ #x "_ticks", \
+ SYSCTL_DESCR( \
+ "running total of on-time in ticks"), \
+ NULL, 0, &sc->x ## _ticks, 0, \
+ CTL_HW, node->sysctl_num, \
+ CTL_CREATE, CTL_EOL)) \
+ != 0) { \
+ printf("%s: could not create sysctl\n", \
+ sc->sc_dev.dv_xname); \
+ return; \
+ } \
+
+ KEYSYSCTL_SETUP(cancel_key);
+ KEYSYSCTL_SETUP(toast_key);
+ KEYSYSCTL_SETUP(bagel_key);
+ KEYSYSCTL_SETUP(warm_key);
+ KEYSYSCTL_SETUP(frozen_key);
+ KEYSYSCTL_SETUP(toast_down);
+
+ sc->cancel_key_ticks = 0;
+ sc->toast_key_ticks = 0;
+ sc->frozen_key_ticks = 0;
+ sc->warm_key_ticks = 0;
+ sc->bagel_key_ticks = 0;
+ sc->toast_down_ticks = 0;
+
+ mxkp_attach(&sc->sc_mxkp);
+ wa.console = 0;
+ wa.keymap = &mxkp_keymapdata;
+ wa.accessops = &mxkp_accessops;
+ wa.accesscookie = &sc->sc_mxkp;
+ sc->sc_mxkp.sc_wskbddev = config_found(self, &wa, wskbddevprint);
+
+ callout_init(&sc->poll);
+ callout_setfunc(&sc->poll, toastersensors_poll, sc);
+ callout_schedule(&sc->poll, 1);
+}
+
+static void
+toastersensors_scankeys(mxkp_sc, keys)
+ struct matrixkp_softc *mxkp_sc;
+ u_int32_t *keys;
+{
+ struct toastersensors_softc *sc = (void *)mxkp_sc->sc_dev;
+ u_int32_t val = GPIO_GET(PBDR) & 0x3f;
+
+ /*
+ * toast_down isn't a key, but we update its state here since its
+ * read in the same reg.
+ */
+ sc->toast_down = (val & 0x1) ? 0 : 1;
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