88ab7da936
- kthread, callout, devsw API changes - select()/poll() improvements - miscellaneous MT safety improvements
299 lines
8.2 KiB
C
299 lines
8.2 KiB
C
/* $NetBSD: pckbc_js.c,v 1.14 2007/07/09 20:52:30 ad Exp $ */
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/*
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* Copyright (c) 2002 Valeriy E. Ushakov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: pckbc_js.c,v 1.14 2007/07/09 20:52:30 ad Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <sys/malloc.h>
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#include <machine/autoconf.h>
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#include <machine/bus.h>
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#include <machine/intr.h>
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#include <dev/ic/i8042reg.h>
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#include <dev/ic/pckbcvar.h>
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#include <dev/pckbport/pckbportvar.h>
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#include <dev/ebus/ebusreg.h>
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#include <dev/ebus/ebusvar.h>
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#ifdef __GENERIC_SOFT_INTERRUPTS_ALL_LEVELS
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#define IPL_JSCKBD IPL_TTY
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#else
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#define IPL_JSCKBD IPL_SOFTSERIAL
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#endif
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struct pckbc_js_softc {
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struct pckbc_softc jsc_pckbc; /* real "pckbc" softc */
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/* kbd and mouse share interrupt in both mr.coffee and krups */
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uint32_t jsc_intr;
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int jsc_establised;
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void *jsc_int_cookie;
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};
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static int pckbc_obio_match(struct device *, struct cfdata *, void *);
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static void pckbc_obio_attach(struct device *, struct device *, void *);
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static int pckbc_ebus_match(struct device *, struct cfdata *, void *);
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static void pckbc_ebus_attach(struct device *, struct device *, void *);
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static void pckbc_js_attach_common(struct pckbc_js_softc *,
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bus_space_tag_t, bus_addr_t, int, int);
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static void pckbc_js_intr_establish(struct pckbc_softc *, pckbport_slot_t);
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static int jsc_pckbdintr(void *);
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/* Mr.Coffee */
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CFATTACH_DECL(pckbc_obio, sizeof(struct pckbc_js_softc),
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pckbc_obio_match, pckbc_obio_attach, NULL, NULL);
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/* ms-IIep */
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CFATTACH_DECL(pckbc_ebus, sizeof(struct pckbc_js_softc),
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pckbc_ebus_match, pckbc_ebus_attach, NULL, NULL);
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#define PCKBC_PROM_DEVICE_NAME "8042"
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static int
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pckbc_obio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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union obio_attach_args *uoba = aux;
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struct sbus_attach_args *sa = &uoba->uoba_sbus;
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return (strcmp(sa->sa_name, PCKBC_PROM_DEVICE_NAME) == 0);
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}
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static int
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pckbc_ebus_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct ebus_attach_args *ea = aux;
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return (strcmp(ea->ea_name, PCKBC_PROM_DEVICE_NAME) == 0);
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}
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static void
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pckbc_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self;
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union obio_attach_args *uoba = aux;
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struct sbus_attach_args *sa = &uoba->uoba_sbus;
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bus_space_tag_t iot;
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bus_addr_t ioaddr;
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int intr, isconsole;
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iot = sa->sa_bustag;
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ioaddr = BUS_ADDR(sa->sa_slot, sa->sa_offset);
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intr = sa->sa_nintr ? sa->sa_pri : /* level */ 13;
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/*
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* TODO:
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* . on OFW machines stdin is keyboard node, not 8042 node
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* . on OBP machines 8042 node is faked by boot's prompatch
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* and PROM's stdin points to zs keyboard (add prom patch?)
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* . we probably want the stdout node to control whether
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* console goes to serial
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*/
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isconsole = 1;
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pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole);
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}
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static void
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pckbc_ebus_attach(struct device *parent, struct device *self, void *aux)
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{
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struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)self;
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struct ebus_attach_args *ea = aux;
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bus_space_tag_t iot;
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bus_addr_t ioaddr;
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int intr;
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int stdin_node, node;
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int isconsole;
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iot = ea->ea_bustag;
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ioaddr = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
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intr = ea->ea_nintr ? ea->ea_intr[0] : /* line */ 0;
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/* search children of "8042" node for stdin (keyboard) */
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stdin_node = prom_instance_to_package(prom_stdin());
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isconsole = 0;
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for (node = prom_firstchild(ea->ea_node);
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node != 0; node = prom_nextsibling(node))
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if (node == stdin_node) {
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isconsole = 1;
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break;
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}
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pckbc_js_attach_common(jsc, iot, ioaddr, intr, isconsole);
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}
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static void
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pckbc_js_attach_common(struct pckbc_js_softc *jsc,
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bus_space_tag_t iot, bus_addr_t ioaddr, int intr,
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int isconsole)
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{
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struct pckbc_softc *sc = (struct pckbc_softc *)jsc;
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struct pckbc_internal *t;
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jsc->jsc_pckbc.intr_establish = pckbc_js_intr_establish;
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jsc->jsc_intr = intr;
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jsc->jsc_establised = 0;
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if (isconsole) {
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int status;
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status = pckbc_cnattach(iot, ioaddr, KBCMDP, PCKBC_KBD_SLOT);
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if (status == 0)
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printf(": cnattach ok");
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else
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printf(": cnattach %d", status);
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}
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if (pckbc_is_console(iot, ioaddr)) {
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t = &pckbc_consdata;
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pckbc_console_attached = 1;
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} else {
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bus_space_handle_t ioh_d, ioh_c;
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if (bus_space_map(iot, ioaddr + KBDATAP, 1, 0, &ioh_d) != 0) {
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printf(": unable to map data register\n");
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return;
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}
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if (bus_space_map(iot, ioaddr + KBCMDP, 1, 0, &ioh_c) != 0) {
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bus_space_unmap(iot, ioh_d, 1);
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printf(": unable to map cmd register\n");
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return;
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}
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t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK);
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memset(t, 0, sizeof(struct pckbc_internal));
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t->t_iot = iot;
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t->t_ioh_d = ioh_d;
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t->t_ioh_c = ioh_c;
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t->t_addr = ioaddr;
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t->t_cmdbyte = KC8_CPU; /* initial command: enable ports */
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callout_init(&t->t_cleanup, 0);
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(void) pckbc_poll_data1(t, PCKBC_KBD_SLOT); /* flush */
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if (pckbc_send_cmd(iot, ioh_c, KBC_SELFTEST) == 0)
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printf(": unable to request self test");
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else {
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int response;
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response = pckbc_poll_data1(t, PCKBC_KBD_SLOT);
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if (response == 0x55)
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printf(": selftest ok");
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else
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printf(": selftest failed (0x%02x)", response);
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}
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}
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/* crosslink */
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t->t_sc = sc;
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sc->id = t;
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/* finish off the attach */
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printf("\n");
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pckbc_attach(sc);
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}
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/*
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* Keyboard and mouse share the interrupt
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* so don't install interrupt handler twice.
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*/
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static void
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pckbc_js_intr_establish(struct pckbc_softc *sc, pckbport_slot_t slot)
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{
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struct pckbc_js_softc *jsc = (struct pckbc_js_softc *)sc;
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void *res;
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if (jsc->jsc_establised) {
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#ifdef DEBUG
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printf("%s: %s slot shares interrupt (already established)\n",
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sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
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#endif
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return;
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}
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/*
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* We can not choose the devic class interruptlevel freely,
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* so we debounce via a softinterrupt.
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*/
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jsc->jsc_int_cookie = softintr_establish(IPL_JSCKBD,
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pckbcintr_soft, &jsc->jsc_pckbc);
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if (jsc->jsc_int_cookie == NULL) {
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printf("%s: unable to establish %s soft interrupt\n",
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sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
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return;
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}
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res = bus_intr_establish(sc->id->t_iot, jsc->jsc_intr,
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IPL_SERIAL, jsc_pckbdintr, jsc);
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if (res == NULL)
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printf("%s: unable to establish %s slot interrupt\n",
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sc->sc_dv.dv_xname, pckbc_slot_names[slot]);
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else
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jsc->jsc_establised = 1;
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}
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static int
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jsc_pckbdintr(void *vsc)
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{
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struct pckbc_js_softc *jsc = vsc;
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softintr_schedule(jsc->jsc_int_cookie);
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pckbcintr_hard(&jsc->jsc_pckbc);
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/*
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* This interrupt is not shared on javastations, avoid "stray"
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* warnings. XXX - why do "stray interrupt" warnings happen if
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* we don't claim the interrupt always?
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*/
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return 1;
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}
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/*
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* MD hook for use without MI wscons.
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* Called by pckbc_cnattach().
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*/
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int
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pckbport_machdep_cnattach(pckbport_tag_t constag, pckbport_slot_t slot)
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{
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return (0);
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}
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