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authorJason Wright <jason@cvs.openbsd.org>2002-02-18 17:52:09 +0000
committerJason Wright <jason@cvs.openbsd.org>2002-02-18 17:52:09 +0000
commitad281e306a28c5a434a8e3558d3399e5778024e4 (patch)
tree8545848cb8cff81ce665d5fde9de9d11a7af1797 /sys
parentc106f6eabfa21000499f9c7c8992a50037ab7c9c (diff)
Driver for the i8042 keyboard controller on systems with ebus
(why you'd want to use a PS/2 keyboard on a sun machine is beyond me, but whatever...)
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/sparc64/conf/GENERIC10
-rw-r--r--sys/arch/sparc64/dev/pckbc_ebus.c202
2 files changed, 210 insertions, 2 deletions
diff --git a/sys/arch/sparc64/conf/GENERIC b/sys/arch/sparc64/conf/GENERIC
index e05c7f64539..b7b47adcf91 100644
--- a/sys/arch/sparc64/conf/GENERIC
+++ b/sys/arch/sparc64/conf/GENERIC
@@ -1,4 +1,4 @@
-# $OpenBSD: GENERIC,v 1.48 2002/02/05 18:29:54 jason Exp $
+# $OpenBSD: GENERIC,v 1.49 2002/02/18 17:52:07 jason Exp $
# $NetBSD: GENERIC32,v 1.18 2001/07/20 00:07:12 eeh Exp $
machine sparc64
@@ -75,11 +75,17 @@ beeper* at ebus?
sab* at ebus?
sabtty* at sab?
-# NS16550
+# NS16550 based serial ports
com* at ebus?
comkbd* at ebus?
wskbd* at comkbd?
+# i8042 based serial ports (PS/2 ports)
+pckbc* at ebus? # controller
+pckbd* at pckbc? # ps2 keyboard
+wskbd* at pckbd? console ? # generic keyboard layer
+#pms* at pckbc? # ps2 mouse
+
audioce* at ebus?
audio* at audioce?
diff --git a/sys/arch/sparc64/dev/pckbc_ebus.c b/sys/arch/sparc64/dev/pckbc_ebus.c
new file mode 100644
index 00000000000..ee46465e7cd
--- /dev/null
+++ b/sys/arch/sparc64/dev/pckbc_ebus.c
@@ -0,0 +1,202 @@
+/* $OpenBSD: pckbc_ebus.c,v 1.1 2002/02/18 17:52:08 jason Exp $ */
+
+/*
+ * Copyright (c) 2002 Jason L. Wright (jason@thought.net)
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by Jason L. Wright
+ * 4. 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.
+ */
+
+/*
+ * Driver for i8042 keyboard controller found on some PCI based
+ * UltraSPARCs
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/conf.h>
+#include <sys/malloc.h>
+
+#include <machine/bus.h>
+#include <machine/autoconf.h>
+#include <machine/openfirm.h>
+
+#include <sparc64/dev/ebusreg.h>
+#include <sparc64/dev/ebusvar.h>
+
+#include <dev/ic/i8042reg.h>
+#include <dev/ic/pckbcvar.h>
+
+struct pckbc_ebus_softc {
+ struct pckbc_softc sc_pckbc;
+ bus_space_tag_t sc_iot;
+ bus_space_handle_t sc_ioh;
+ bus_space_handle_t sc_ioh_c;
+ bus_space_handle_t sc_ioh_d;
+ void *sc_irq[2];
+ int sc_node;
+};
+
+int pckbc_ebus_match(struct device *, void *, void *);
+void pckbc_ebus_attach(struct device *, struct device *, void *);
+
+struct cfattach pckbc_ebus_ca = {
+ sizeof(struct pckbc_ebus_softc), pckbc_ebus_match, pckbc_ebus_attach
+};
+
+void pckbc_ebus_intr_establish(struct pckbc_softc *, pckbc_slot_t);
+int pckbc_ebus_is_console(struct pckbc_ebus_softc *);
+
+int
+pckbc_ebus_match(parent, match, aux)
+ struct device *parent;
+ void *match;
+ void *aux;
+{
+ struct ebus_attach_args *ea = aux;
+
+ if (strcmp(ea->ea_name, "8042") == 0)
+ return (1);
+ return (0);
+}
+
+void
+pckbc_ebus_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct pckbc_ebus_softc *sc = (void *)self;
+ struct pckbc_softc *psc = &sc->sc_pckbc;
+ struct ebus_attach_args *ea = aux;
+ struct pckbc_internal *t;
+ int console;
+
+ sc->sc_iot = ea->ea_bustag;
+ sc->sc_node = ea->ea_node;
+ console = pckbc_ebus_is_console(sc);
+
+ if (console) {
+ if (pckbc_cnattach(sc->sc_iot,
+ EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), KBCMDP,
+ PCKBC_KBD_SLOT) == 0) {
+ t = &pckbc_consdata;
+ pckbc_console_attached = 1;
+ sc->sc_ioh_c = t->t_ioh_c;
+ sc->sc_ioh_d = t->t_ioh_d;
+ } else
+ console = 0;
+ }
+
+ if (console == 0) {
+ /* Use prom address if available, otherwise map it. */
+ if (ea->ea_nvaddrs)
+ sc->sc_ioh = (bus_space_handle_t)ea->ea_vaddrs[0];
+ else if (ebus_bus_map(sc->sc_iot, 0,
+ EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), ea->ea_regs[0].size,
+ BUS_SPACE_MAP_LINEAR, 0, &sc->sc_ioh) != 0) {
+ printf(": can't map register space\n");
+ return;
+ }
+
+ if (bus_space_subregion(sc->sc_iot, sc->sc_ioh,
+ KBCMDP, sizeof(u_int32_t), &sc->sc_ioh_c) != 0) {
+ printf(": couldn't get cmd subregion\n");
+ return;
+ }
+ if (bus_space_subregion(sc->sc_iot, sc->sc_ioh,
+ KBDATAP, sizeof(u_int32_t), &sc->sc_ioh_d) != 0) {
+ printf(": couldn't get data subregion\n");
+ return;
+ }
+
+ t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_NOWAIT);
+ bzero(t, sizeof(struct pckbc_internal));
+ }
+
+ psc->intr_establish = pckbc_ebus_intr_establish;
+
+ sc->sc_irq[0] = bus_intr_establish(ea->ea_bustag, ea->ea_intrs[0],
+ IPL_TTY, 0, pckbcintr, psc);
+ if (sc->sc_irq[0] == NULL) {
+ printf(": couldn't get intr0\n");
+ return;
+ }
+
+ sc->sc_irq[1] = bus_intr_establish(ea->ea_bustag, ea->ea_intrs[1],
+ IPL_TTY, 0, pckbcintr, psc);
+ if (sc->sc_irq[1] == NULL) {
+ printf(": couldn't get intr1\n");
+ return;
+ }
+
+ t->t_iot = sc->sc_iot;
+ t->t_ioh_c = sc->sc_ioh_c;
+ t->t_ioh_d = sc->sc_ioh_d;
+ t->t_cmdbyte = KC8_CPU;
+ t->t_sc = psc;
+ psc->id = t;
+
+ printf("\n");
+ pckbc_attach(psc);
+
+}
+
+int
+pckbc_ebus_is_console(sc)
+ struct pckbc_ebus_softc *sc;
+{
+ char *name;
+ int node;
+
+ /*
+ * Loop through the children of 8042 and see if the keyboard
+ * exists, and further, whether it is the console input device.
+ * This is almost redundant because 8042 doesn't show up in
+ * device tree unless a keyboard is in fact attached.
+ */
+ for (node = OF_child(sc->sc_node); node; node = OF_peer(node)) {
+ name = getpropstring(node, "name");
+ if (name == NULL)
+ continue;
+ if (strcmp("kb_ps2", name) == 0 ||
+ strcmp("keyboard", name) == 0) {
+ if (node == OF_instance_to_package(OF_stdin()))
+ return (1);
+ }
+ }
+ return (0);
+}
+
+void
+pckbc_ebus_intr_establish(psc, slot)
+ struct pckbc_softc *psc;
+ pckbc_slot_t slot;
+{
+ /* Nothing to do, interrupts were mapped in attach. */
+}