atkbdc_subr.c revision 47400
143105Sdfr/*- 243105Sdfr * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 343105Sdfr * All rights reserved. 443105Sdfr * 543105Sdfr * Redistribution and use in source and binary forms, with or without 643105Sdfr * modification, are permitted provided that the following conditions 743105Sdfr * are met: 843105Sdfr * 1. Redistributions of source code must retain the above copyright 943105Sdfr * notice, this list of conditions and the following disclaimer as 1043105Sdfr * the first lines of this file unmodified. 1143105Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1243105Sdfr * notice, this list of conditions and the following disclaimer in the 1343105Sdfr * documentation and/or other materials provided with the distribution. 1443105Sdfr * 1543105Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 1643105Sdfr * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 1743105Sdfr * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 1843105Sdfr * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 1943105Sdfr * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 2043105Sdfr * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2143105Sdfr * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2243105Sdfr * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2343105Sdfr * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 2443105Sdfr * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2543105Sdfr * 2647400Sdfr * $Id: atkbdc_isa.c,v 1.6 1999/05/18 11:33:14 yokota Exp $ 2743105Sdfr */ 2843105Sdfr 2943105Sdfr#include "atkbdc.h" 3043105Sdfr#include "opt_kbd.h" 3143105Sdfr 3243105Sdfr#if NATKBDC > 0 3343105Sdfr 3443105Sdfr#include <sys/param.h> 3543105Sdfr#include <sys/systm.h> 3643105Sdfr#include <sys/kernel.h> 3743105Sdfr#include <sys/bus.h> 3843105Sdfr#include <sys/malloc.h> 3947400Sdfr#include <machine/bus.h> 4047400Sdfr#include <machine/resource.h> 4147400Sdfr#include <sys/rman.h> 4243105Sdfr 4343105Sdfr#include <dev/kbd/atkbdcreg.h> 4443105Sdfr 4543105Sdfr#include <isa/isareg.h> 4643105Sdfr#include <isa/isavar.h> 4743105Sdfr 4843105SdfrMALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device"); 4943105Sdfr 5043105Sdfr/* children */ 5143105Sdfrtypedef struct atkbdc_device { 5243105Sdfr int flags; /* configuration flags */ 5343105Sdfr int port; /* port number (same as the controller's) */ 5443105Sdfr int irq; /* ISA IRQ mask */ 5543105Sdfr} atkbdc_device_t; 5643105Sdfr 5743105Sdfr/* kbdc */ 5843105Sdfrdevclass_t atkbdc_devclass; 5943105Sdfr 6043105Sdfrstatic int atkbdc_probe(device_t dev); 6143105Sdfrstatic int atkbdc_attach(device_t dev); 6243105Sdfrstatic void atkbdc_print_child(device_t bus, device_t dev); 6343105Sdfrstatic int atkbdc_read_ivar(device_t bus, device_t dev, int index, 6443105Sdfr u_long *val); 6543105Sdfrstatic int atkbdc_write_ivar(device_t bus, device_t dev, int index, 6643105Sdfr u_long val); 6743105Sdfr 6843105Sdfrstatic device_method_t atkbdc_methods[] = { 6943105Sdfr DEVMETHOD(device_probe, atkbdc_probe), 7043105Sdfr DEVMETHOD(device_attach, atkbdc_attach), 7147296Syokota DEVMETHOD(device_suspend, bus_generic_suspend), 7247296Syokota DEVMETHOD(device_resume, bus_generic_resume), 7343105Sdfr 7443105Sdfr DEVMETHOD(bus_print_child, atkbdc_print_child), 7543105Sdfr DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), 7643105Sdfr DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), 7743105Sdfr DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 7843105Sdfr DEVMETHOD(bus_release_resource, bus_generic_release_resource), 7943105Sdfr DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 8043105Sdfr DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 8143105Sdfr DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 8243105Sdfr DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 8343105Sdfr 8443105Sdfr { 0, 0 } 8543105Sdfr}; 8643105Sdfr 8743105Sdfrstatic driver_t atkbdc_driver = { 8843105Sdfr ATKBDC_DRIVER_NAME, 8943105Sdfr atkbdc_methods, 9043105Sdfr sizeof(atkbdc_softc_t *), 9143105Sdfr}; 9243105Sdfr 9343105Sdfrstatic int 9443105Sdfratkbdc_probe(device_t dev) 9543105Sdfr{ 9643105Sdfr int error; 9747400Sdfr int rid; 9847400Sdfr struct resource *port; 9943105Sdfr 10043105Sdfr device_set_desc(dev, "keyboard controller (i8042)"); 10147400Sdfr rid = 0; 10247400Sdfr port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 10347400Sdfr 0, ~0, IO_KBDSIZE, RF_ACTIVE); 10447400Sdfr if (!port) 10547400Sdfr return ENXIO; 10647400Sdfr error = atkbdc_probe_unit(device_get_unit(dev), rman_get_start(port)); 10747400Sdfr bus_release_resource(dev, SYS_RES_IOPORT, rid, port); 10843105Sdfr return error; 10943105Sdfr} 11043105Sdfr 11143105Sdfrstatic void 11243105Sdfratkbdc_add_device(device_t dev, const char *name, int unit) 11343105Sdfr{ 11443105Sdfr atkbdc_softc_t *sc = *(atkbdc_softc_t **)device_get_softc(dev); 11543105Sdfr atkbdc_device_t *kdev; 11643105Sdfr device_t child; 11743105Sdfr int t; 11847400Sdfr int rid; 11947400Sdfr struct resource *port; 12043105Sdfr 12143105Sdfr kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT); 12243105Sdfr if (!kdev) 12343105Sdfr return; 12443105Sdfr bzero(kdev, sizeof *kdev); 12543105Sdfr 12647400Sdfr /* XXX should track resource in softc */ 12747400Sdfr port = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 12847400Sdfr 0, ~0, IO_KBDSIZE, RF_ACTIVE); 12943105Sdfr kdev->port = sc->port; 13043105Sdfr 13143105Sdfr if (resource_int_value(name, unit, "irq", &t) == 0) 13243105Sdfr kdev->irq = t; 13343105Sdfr else 13443105Sdfr kdev->irq = -1; 13543105Sdfr 13643105Sdfr if (resource_int_value(name, unit, "flags", &t) == 0) 13743105Sdfr kdev->flags = t; 13843105Sdfr else 13943105Sdfr kdev->flags = 0; 14043105Sdfr 14143105Sdfr child = device_add_child(dev, name, unit, kdev); 14243105Sdfr} 14343105Sdfr 14443105Sdfrstatic int 14543105Sdfratkbdc_attach(device_t dev) 14643105Sdfr{ 14743105Sdfr atkbdc_softc_t *sc; 14847296Syokota int unit; 14947296Syokota int error; 15043105Sdfr int i; 15143105Sdfr 15247296Syokota unit = device_get_unit(dev); 15343105Sdfr sc = *(atkbdc_softc_t **)device_get_softc(dev); 15447296Syokota if (sc == NULL) { 15547296Syokota /* 15647296Syokota * We have to maintain two copies of the kbdc_softc struct, 15747296Syokota * as the low-level console needs to have access to the 15847296Syokota * keyboard controller before kbdc is probed and attached. 15947296Syokota * kbdc_soft[] contains the default entry for that purpose. 16047296Syokota * See atkbdc.c. XXX 16147296Syokota */ 16247296Syokota sc = atkbdc_get_softc(unit); 16347296Syokota if (sc == NULL) 16447296Syokota return ENOMEM; 16547296Syokota } 16643105Sdfr 16747296Syokota error = atkbdc_attach_unit(unit, sc, isa_get_port(dev)); 16847296Syokota if (error) 16947296Syokota return error; 17047296Syokota *(atkbdc_softc_t **)device_get_softc(dev) = sc; 17147296Syokota 17243105Sdfr /* 17343105Sdfr * Add all devices configured to be attached to atkbdc0. 17443105Sdfr */ 17543105Sdfr for (i = resource_query_string(-1, "at", "atkbdc0"); 17643105Sdfr i != -1; 17743105Sdfr i = resource_query_string(i, "at", "atkbdc0")) { 17843105Sdfr atkbdc_add_device(dev, resource_query_name(i), 17943105Sdfr resource_query_unit(i)); 18043105Sdfr } 18143105Sdfr 18243105Sdfr /* 18343105Sdfr * and atkbdc? 18443105Sdfr */ 18543105Sdfr for (i = resource_query_string(-1, "at", "atkbdc"); 18643105Sdfr i != -1; 18743105Sdfr i = resource_query_string(i, "at", "atkbdc")) { 18843105Sdfr atkbdc_add_device(dev, resource_query_name(i), 18943105Sdfr resource_query_unit(i)); 19043105Sdfr } 19143105Sdfr 19243105Sdfr bus_generic_attach(dev); 19343105Sdfr 19443105Sdfr return 0; 19543105Sdfr} 19643105Sdfr 19743105Sdfrstatic void 19843105Sdfratkbdc_print_child(device_t bus, device_t dev) 19943105Sdfr{ 20043105Sdfr atkbdc_device_t *kbdcdev; 20143105Sdfr 20243105Sdfr kbdcdev = (atkbdc_device_t *)device_get_ivars(dev); 20343105Sdfr 20443105Sdfr if (kbdcdev->flags != 0) 20543105Sdfr printf(" flags 0x%x", kbdcdev->flags); 20646729Speter if (kbdcdev->irq != -1) 20746729Speter printf(" irq %d", kbdcdev->irq); 20843105Sdfr 20943105Sdfr printf(" on %s%d", device_get_name(bus), device_get_unit(bus)); 21043105Sdfr} 21143105Sdfr 21243105Sdfrstatic int 21343105Sdfratkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val) 21443105Sdfr{ 21543105Sdfr atkbdc_device_t *ivar; 21643105Sdfr 21743105Sdfr ivar = (atkbdc_device_t *)device_get_ivars(dev); 21843105Sdfr switch (index) { 21943105Sdfr case KBDC_IVAR_PORT: 22043105Sdfr *val = (u_long)ivar->port; 22143105Sdfr break; 22243105Sdfr case KBDC_IVAR_IRQ: 22343105Sdfr *val = (u_long)ivar->irq; 22443105Sdfr break; 22543105Sdfr case KBDC_IVAR_FLAGS: 22643105Sdfr *val = (u_long)ivar->flags; 22743105Sdfr break; 22843105Sdfr default: 22943105Sdfr return ENOENT; 23043105Sdfr } 23143105Sdfr return 0; 23243105Sdfr} 23343105Sdfr 23443105Sdfrstatic int 23543105Sdfratkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val) 23643105Sdfr{ 23743105Sdfr atkbdc_device_t *ivar; 23843105Sdfr 23943105Sdfr ivar = (atkbdc_device_t *)device_get_ivars(dev); 24043105Sdfr switch (index) { 24143105Sdfr case KBDC_IVAR_PORT: 24243105Sdfr ivar->port = (int)val; 24343105Sdfr break; 24443105Sdfr case KBDC_IVAR_IRQ: 24543105Sdfr ivar->irq = (int)val; 24643105Sdfr break; 24743105Sdfr case KBDC_IVAR_FLAGS: 24843105Sdfr ivar->flags = (int)val; 24943105Sdfr break; 25043105Sdfr default: 25143105Sdfr return ENOENT; 25243105Sdfr } 25343105Sdfr return 0; 25443105Sdfr} 25543105Sdfr 25643105SdfrDRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0); 25743105Sdfr 25843105Sdfr#endif /* NATKBDC > 0 */ 259