Module Name: src
Committed By: jdc
Date: Tue Oct 9 20:55:05 UTC 2012
Added Files:
src/sys/arch/sparc64/dev: pckbc_ebus.c
Log Message:
Driver for pckbc at ebus, as found on Tadpole SPARCle.
Largely based on sparc's pckbc_js.c.
To generate a diff of this commit:
cvs rdiff -u -r0 -r1.1 src/sys/arch/sparc64/dev/pckbc_ebus.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Added files:
Index: src/sys/arch/sparc64/dev/pckbc_ebus.c
diff -u /dev/null src/sys/arch/sparc64/dev/pckbc_ebus.c:1.1
--- /dev/null Tue Oct 9 20:55:05 2012
+++ src/sys/arch/sparc64/dev/pckbc_ebus.c Tue Oct 9 20:55:04 2012
@@ -0,0 +1,182 @@
+/* $NetBSD: pckbc_ebus.c,v 1.1 2012/10/09 20:55:04 jdc Exp $ */
+
+/*
+ * Copyright (c) 2002 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: pckbc_ebus.c,v 1.1 2012/10/09 20:55:04 jdc Exp $");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/bus.h>
+#include <sys/intr.h>
+
+#include <machine/autoconf.h>
+
+#include <dev/ic/i8042reg.h>
+#include <dev/ic/pckbcvar.h>
+#include <dev/pckbport/pckbportvar.h>
+
+#include <dev/ebus/ebusreg.h>
+#include <dev/ebus/ebusvar.h>
+
+struct pckbc_ebus_softc {
+ struct pckbc_softc psc_pckbc; /* real "pckbc" softc */
+ uint32_t psc_intr[PCKBC_NSLOTS];
+};
+
+static int pckbc_ebus_match(device_t, cfdata_t, void *);
+static void pckbc_ebus_attach(device_t, device_t, void *);
+
+static void pckbc_ebus_intr_establish(struct pckbc_softc *, pckbport_slot_t);
+
+#define PCKBC_PROM_DEVICE_NAME "8042"
+
+CFATTACH_DECL_NEW(pckbc_ebus, sizeof(struct pckbc_ebus_softc),
+ pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL);
+
+
+static int
+pckbc_ebus_match(device_t parent, cfdata_t cf, void *aux)
+{
+ struct ebus_attach_args *ea = aux;
+
+ return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0);
+}
+
+static void
+pckbc_ebus_attach(device_t parent, device_t self, void *aux)
+{
+ struct pckbc_ebus_softc *sc = device_private(self);
+ struct pckbc_softc *psc = (struct pckbc_softc *) sc;
+ struct ebus_attach_args *ea = aux;
+ struct pckbc_internal *t;
+ bus_space_tag_t iot;
+ bus_addr_t ioaddr;
+ int stdin_node, node;
+ int isconsole, i;
+
+ psc->sc_dv = self;
+ iot = ea->ea_bustag;
+ ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
+
+ stdin_node = prom_instance_to_package(prom_stdin());
+ isconsole = 0;
+ for (node = prom_firstchild(ea->ea_node);
+ node != 0; node = prom_nextsibling(node))
+ if (node == stdin_node) {
+ isconsole = 1;
+ break;
+ }
+
+ psc->intr_establish = pckbc_ebus_intr_establish;
+
+ for (i = 0; i < PCKBC_NSLOTS; i++)
+ sc->psc_intr[i] = ea->ea_intr[i];
+
+ if (isconsole) {
+ int status;
+
+ status = pckbc_cnattach(iot, ioaddr, KBCMDP, 0,
+ PCKBC_NEED_AUXWRITE | PCKBC_CANT_TRANSLATE);
+ if (status == 0)
+ aprint_normal(": cnattach ok");
+ else
+ aprint_error(": cnattach %d", status);
+ }
+
+ if (pckbc_is_console(iot, ioaddr)) {
+ t = &pckbc_consdata;
+ pckbc_console_attached = 1;
+ } else {
+ bus_space_handle_t ioh_d, ioh_c;
+
+ if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) {
+ aprint_error(": unable to map data register\n");
+ return;
+ }
+
+ if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) {
+ bus_space_unmap(iot, ioh_d, 1);
+ aprint_error(": unable to map cmd register\n");
+ return;
+ }
+
+ t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
+ memset(t, 0, sizeof(struct pckbc_internal));
+ t->t_iot = iot;
+ t->t_ioh_d = ioh_d;
+ t->t_ioh_c = ioh_c;
+ t->t_addr = ioaddr;
+ t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */
+ callout_init(&t->t_cleanup, 0);
+
+ (void) pckbc_poll_data1(t, PCKBC_KBD_SLOT); /* flush */
+
+ if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0)
+ aprint_error(": unable to request self test");
+ else {
+ int response;
+
+ response = pckbc_poll_data1(t, PCKBC_KBD_SLOT);
+ if (response == 0x55)
+ aprint_normal(": selftest ok");
+ else
+ aprint_error(": selftest failed (0x%02x)",
+ response);
+ }
+ }
+
+ /* crosslink */
+ t->t_sc = psc;
+ psc->id = t;
+
+ /* finish off the attach */
+ aprint_normal("\n");
+ pckbc_attach(psc);
+}
+
+
+static void
+pckbc_ebus_intr_establish(struct pckbc_softc *sc, pckbport_slot_t slot)
+{
+ struct pckbc_ebus_softc *psc = (struct pckbc_ebus_softc *)sc;
+ void *res;
+
+ /* We assume that interrupt order is the same as slot order. */
+ res = bus_intr_establish(sc->id->t_iot, psc->psc_intr[slot],
+ IPL_TTY, pckbcintr, sc);
+ if (res == NULL)
+ aprint_error_dev(sc->sc_dv,
+ "unable to establish %s slot interrupt\n",
+ pckbc_slot_names[slot]);
+
+ return;
+}
