dff5222d3a
drivers that attach to it. This allows for other host interface chips that use the same keyboards and mice, such as the ones in the ARM IOMD20, ARM7500, and SA-1111. The PC-compatible driver is still called pckbc(4), and the new abstraction layer is "pckbport", so the child devices have moved from sys/dev/pckbc to sys/dev/pckbport, which also contains some code shared between all host controllers. To avoid incompatibility, pckbdreg.h is still installed in /usr/include/dev/pckbc. In theory, this shouldn't cause any behavioural changes in the drivers concerned. Thy just use rather more function pointers than before. Tested on i386 and (with a new host driver) acorn32. Compiled on several other affected architectures.
315 lines
8.3 KiB
C
315 lines
8.3 KiB
C
/* $NetBSD: pckbc_js.c,v 1.11 2004/03/13 17:31:33 bjh21 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 1.11 2004/03/13 17:31:33 bjh21 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/pckbc/pckbdvar.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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u_int32_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 *, pckbc_slot_t);
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static int jsc_pckbdintr(void *vsc);
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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(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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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(parent, cf, aux)
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struct device *parent;
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struct cfdata *cf;
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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(parent, self, aux)
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struct device *parent, *self;
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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(parent, self, aux)
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struct device *parent, *self;
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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(jsc, iot, ioaddr, intr, isconsole)
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struct pckbc_js_softc *jsc;
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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 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);
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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(sc, slot)
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struct pckbc_softc *sc;
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pckbc_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(constag, slot)
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pckbc_tag_t constag;
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pckbc_slot_t slot;
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{
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return (0);
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}
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