/*- * Copyright (c) 1999 Kazutaka YOKOTA * 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 as * the first lines of this file unmodified. * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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. * * $Id: atkbdc_isa.c,v 1.3 1999/05/08 20:25:38 peter Exp $ */ #include "atkbdc.h" #include "opt_kbd.h" #if NATKBDC > 0 #include #include #include #include #include #include #include #include MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device"); /* children */ typedef struct atkbdc_device { int flags; /* configuration flags */ int port; /* port number (same as the controller's) */ int irq; /* ISA IRQ mask */ } atkbdc_device_t; /* kbdc */ devclass_t atkbdc_devclass; static int atkbdc_probe(device_t dev); static int atkbdc_attach(device_t dev); static void atkbdc_print_child(device_t bus, device_t dev); static int atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val); static int atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val); static device_method_t atkbdc_methods[] = { DEVMETHOD(device_probe, atkbdc_probe), DEVMETHOD(device_attach, atkbdc_attach), DEVMETHOD(bus_print_child, atkbdc_print_child), DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), DEVMETHOD(bus_release_resource, bus_generic_release_resource), DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), { 0, 0 } }; static driver_t atkbdc_driver = { ATKBDC_DRIVER_NAME, atkbdc_methods, sizeof(atkbdc_softc_t *), }; static int atkbdc_probe(device_t dev) { atkbdc_softc_t *sc; int unit; int error; unit = device_get_unit(dev); sc = *(atkbdc_softc_t **)device_get_softc(dev); if (sc == NULL) { /* * We have to maintain two copies of the kbdc_softc struct, * as the low-level console needs to have access to the * keyboard controller before kbdc is probed and attached. * kbdc_soft[] contains the default entry for that purpose. * See atkbdc.c. XXX */ sc = atkbdc_get_softc(unit); if (sc == NULL) return ENOMEM; } device_set_desc(dev, "keyboard controller (i8042)"); error = atkbdc_probe_unit(sc, unit, isa_get_port(dev)); if (error == 0) *(atkbdc_softc_t **)device_get_softc(dev) = sc; return error; } static void atkbdc_add_device(device_t dev, const char *name, int unit) { atkbdc_softc_t *sc = *(atkbdc_softc_t **)device_get_softc(dev); atkbdc_device_t *kdev; device_t child; int t; kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT); if (!kdev) return; bzero(kdev, sizeof *kdev); kdev->port = sc->port; if (resource_int_value(name, unit, "irq", &t) == 0) kdev->irq = t; else kdev->irq = -1; if (resource_int_value(name, unit, "flags", &t) == 0) kdev->flags = t; else kdev->flags = 0; child = device_add_child(dev, name, unit, kdev); } static int atkbdc_attach(device_t dev) { atkbdc_softc_t *sc; int i; sc = *(atkbdc_softc_t **)device_get_softc(dev); if ((sc == NULL) || (sc->port <= 0)) return ENXIO; /* * Add all devices configured to be attached to atkbdc0. */ for (i = resource_query_string(-1, "at", "atkbdc0"); i != -1; i = resource_query_string(i, "at", "atkbdc0")) { atkbdc_add_device(dev, resource_query_name(i), resource_query_unit(i)); } /* * and atkbdc? */ for (i = resource_query_string(-1, "at", "atkbdc"); i != -1; i = resource_query_string(i, "at", "atkbdc")) { atkbdc_add_device(dev, resource_query_name(i), resource_query_unit(i)); } #ifdef __i386__ /* * Foot protection... */ for (i = resource_locate(-1, "atkbd"); i != -1; i = resource_locate(i, "atkbd")) { if (device_find_child(dev, resource_query_name(i), resource_query_unit(i)) == NULL) { printf("WARNING: Update your atkbdc config!\n"); atkbdc_add_device(dev, resource_query_name(i), resource_query_unit(i)); } } #endif bus_generic_attach(dev); return 0; } static void atkbdc_print_child(device_t bus, device_t dev) { atkbdc_device_t *kbdcdev; kbdcdev = (atkbdc_device_t *)device_get_ivars(dev); if (kbdcdev->flags != 0) printf(" flags 0x%x", kbdcdev->flags); if (kbdcdev->irq != -1) printf(" irq %d", kbdcdev->irq); printf(" on %s%d", device_get_name(bus), device_get_unit(bus)); } static int atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val) { atkbdc_device_t *ivar; ivar = (atkbdc_device_t *)device_get_ivars(dev); switch (index) { case KBDC_IVAR_PORT: *val = (u_long)ivar->port; break; case KBDC_IVAR_IRQ: *val = (u_long)ivar->irq; break; case KBDC_IVAR_FLAGS: *val = (u_long)ivar->flags; break; default: return ENOENT; } return 0; } static int atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val) { atkbdc_device_t *ivar; ivar = (atkbdc_device_t *)device_get_ivars(dev); switch (index) { case KBDC_IVAR_PORT: ivar->port = (int)val; break; case KBDC_IVAR_IRQ: ivar->irq = (int)val; break; case KBDC_IVAR_FLAGS: ivar->flags = (int)val; break; default: return ENOENT; } return 0; } DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0); #endif /* NATKBDC > 0 */