/*- * 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. */ #include __FBSDID("$FreeBSD$"); #include "opt_kbd.h" #include #include #include #include #include #include #include #include #include #include #include #include #include static int atkbdc_isa_probe(device_t dev); static int atkbdc_isa_attach(device_t dev); static device_t atkbdc_isa_add_child(device_t bus, int order, char *name, int unit); static device_method_t atkbdc_isa_methods[] = { DEVMETHOD(device_probe, atkbdc_isa_probe), DEVMETHOD(device_attach, atkbdc_isa_attach), DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(bus_add_child, atkbdc_isa_add_child), DEVMETHOD(bus_print_child, atkbdc_print_child), DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list), DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource), DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource), DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), { 0, 0 } }; static driver_t atkbdc_isa_driver = { ATKBDC_DRIVER_NAME, atkbdc_isa_methods, sizeof(atkbdc_softc_t *), }; static struct isa_pnp_id atkbdc_ids[] = { { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */ { 0 } }; static int atkbdc_isa_probe(device_t dev) { struct resource *port0; struct resource *port1; u_long start; u_long count; int error; int rid; #if defined(__i386__) bus_space_tag_t tag; bus_space_handle_t ioh1; volatile int i; register_t flags; #endif /* check PnP IDs */ if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO) return ENXIO; device_set_desc(dev, "Keyboard controller (i8042)"); /* * Adjust I/O port resources. * The AT keyboard controller uses two ports (a command/data port * 0x60 and a status port 0x64), which may be given to us in * one resource (0x60 through 0x64) or as two separate resources * (0x60 and 0x64). Some brain-damaged ACPI BIOS has reversed * command/data port and status port. Furthermore, /boot/device.hints * may contain just one port, 0x60. We shall adjust resource settings * so that these two ports are available as two separate resources * in correct order. */ device_quiet(dev); rid = 0; if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0) return ENXIO; if (start == IO_KBD + KBD_STATUS_PORT) { start = IO_KBD; count++; } if (count > 1) /* adjust the count and/or start port */ bus_set_resource(dev, SYS_RES_IOPORT, rid, start, 1); port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); if (port0 == NULL) return ENXIO; rid = 1; if (bus_get_resource(dev, SYS_RES_IOPORT, rid, NULL, NULL) != 0) bus_set_resource(dev, SYS_RES_IOPORT, 1, start + KBD_STATUS_PORT, 1); port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); if (port1 == NULL) { bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); return ENXIO; } #if defined(__i386__) /* * Check if we really have AT keyboard controller. Poll status * register until we get "all clear" indication. If no such * indication comes, it probably means that there is no AT * keyboard controller present. Give up in such case. Check relies * on the fact that reading from non-existing in/out port returns * 0xff on i386. May or may not be true on other platforms. */ tag = rman_get_bustag(port0); ioh1 = rman_get_bushandle(port1); flags = intr_disable(); for (i = 0; i != 65535; i++) { if ((bus_space_read_1(tag, ioh1, 0) & 0x2) == 0) break; } intr_restore(flags); if (i == 65535) { bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); return ENXIO; } #endif device_verbose(dev); error = atkbdc_probe_unit(device_get_unit(dev), port0, port1); if (error == 0) bus_generic_probe(dev); bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); return error; } static int atkbdc_isa_attach(device_t dev) { atkbdc_softc_t *sc; int unit; int error; int rid; 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; } rid = 0; sc->port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); if (sc->port0 == NULL) return ENXIO; rid = 1; sc->port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); if (sc->port1 == NULL) { bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); return ENXIO; } error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1); if (error) { bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1); return error; } *(atkbdc_softc_t **)device_get_softc(dev) = sc; bus_generic_attach(dev); return 0; } static device_t atkbdc_isa_add_child(device_t bus, int order, char *name, int unit) { atkbdc_device_t *ivar; device_t child; int t; ivar = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT | M_ZERO); if (!ivar) return NULL; child = device_add_child_ordered(bus, order, name, unit); if (child == NULL) { free(ivar, M_ATKBDDEV); return child; } resource_list_init(&ivar->resources); ivar->rid = order; /* * If the device is not created by the PnP BIOS or ACPI, * refer to device hints for IRQ. */ if (ISA_PNP_PROBE(device_get_parent(bus), bus, atkbdc_ids) != 0) { if (resource_int_value(name, unit, "irq", &t) != 0) t = -1; } else { t = bus_get_resource_start(bus, SYS_RES_IRQ, ivar->rid); } if (t > 0) resource_list_add(&ivar->resources, SYS_RES_IRQ, ivar->rid, t, t, 1); if (resource_disabled(name, unit)) device_disable(child); device_set_ivars(child, ivar); return child; } DRIVER_MODULE(atkbdc, isa, atkbdc_isa_driver, atkbdc_devclass, 0, 0); DRIVER_MODULE(atkbdc, acpi, atkbdc_isa_driver, atkbdc_devclass, 0, 0);