1 /*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include <sys/cdefs.h> 28 __FBSDID("$FreeBSD$"); 29 30 #include "opt_kbd.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/module.h> 36 #include <sys/bus.h> 37 #include <sys/malloc.h> 38 #include <machine/resource.h> 39 #include <sys/rman.h> 40 41 #include <dev/atkbdc/atkbdc_subr.h> 42 #include <dev/atkbdc/atkbdcreg.h> 43 44 #include <isa/isareg.h> 45 #include <isa/isavar.h> 46 47 static int atkbdc_isa_probe(device_t dev); 48 static int atkbdc_isa_attach(device_t dev); 49 static device_t atkbdc_isa_add_child(device_t bus, int order, char *name, 50 int unit); 51 52 static device_method_t atkbdc_isa_methods[] = { 53 DEVMETHOD(device_probe, atkbdc_isa_probe), 54 DEVMETHOD(device_attach, atkbdc_isa_attach), 55 DEVMETHOD(device_suspend, bus_generic_suspend), 56 DEVMETHOD(device_resume, bus_generic_resume), 57 58 DEVMETHOD(bus_add_child, atkbdc_isa_add_child), 59 DEVMETHOD(bus_print_child, atkbdc_print_child), 60 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), 61 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), 62 DEVMETHOD(bus_get_resource_list,atkbdc_get_resource_list), 63 DEVMETHOD(bus_alloc_resource, bus_generic_rl_alloc_resource), 64 DEVMETHOD(bus_release_resource, bus_generic_rl_release_resource), 65 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 66 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 67 DEVMETHOD(bus_get_resource, bus_generic_rl_get_resource), 68 DEVMETHOD(bus_set_resource, bus_generic_rl_set_resource), 69 DEVMETHOD(bus_delete_resource, bus_generic_rl_delete_resource), 70 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 71 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 72 73 { 0, 0 } 74 }; 75 76 static driver_t atkbdc_isa_driver = { 77 ATKBDC_DRIVER_NAME, 78 atkbdc_isa_methods, 79 sizeof(atkbdc_softc_t *), 80 }; 81 82 static struct isa_pnp_id atkbdc_ids[] = { 83 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */ 84 { 0 } 85 }; 86 87 static int 88 atkbdc_isa_probe(device_t dev) 89 { 90 struct resource *port0; 91 struct resource *port1; 92 u_long start; 93 u_long count; 94 int error; 95 int rid; 96 97 /* check PnP IDs */ 98 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO) 99 return ENXIO; 100 101 device_set_desc(dev, "Keyboard controller (i8042)"); 102 103 /* 104 * Adjust I/O port resources. 105 * The AT keyboard controller uses two ports (a command/data port 106 * 0x60 and a status port 0x64), which may be given to us in 107 * one resource (0x60 through 0x64) or as two separate resources 108 * (0x60 and 0x64). Furthermore, /boot/device.hints may contain 109 * just one port, 0x60. We shall adjust resource settings 110 * so that these two ports are available as two separate resources. 111 */ 112 device_quiet(dev); 113 rid = 0; 114 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, &start, &count) != 0) 115 return ENXIO; 116 if (count > 1) /* adjust the count */ 117 bus_set_resource(dev, SYS_RES_IOPORT, rid, start, 1); 118 port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); 119 if (port0 == NULL) 120 return ENXIO; 121 rid = 1; 122 if (bus_get_resource(dev, SYS_RES_IOPORT, rid, NULL, NULL) != 0) 123 bus_set_resource(dev, SYS_RES_IOPORT, 1, 124 start + KBD_STATUS_PORT, 1); 125 port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, RF_ACTIVE); 126 if (port1 == NULL) { 127 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 128 return ENXIO; 129 } 130 device_verbose(dev); 131 132 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1); 133 if (error == 0) 134 bus_generic_probe(dev); 135 136 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 137 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); 138 139 return error; 140 } 141 142 static int 143 atkbdc_isa_attach(device_t dev) 144 { 145 atkbdc_softc_t *sc; 146 int unit; 147 int error; 148 int rid; 149 150 unit = device_get_unit(dev); 151 sc = *(atkbdc_softc_t **)device_get_softc(dev); 152 if (sc == NULL) { 153 /* 154 * We have to maintain two copies of the kbdc_softc struct, 155 * as the low-level console needs to have access to the 156 * keyboard controller before kbdc is probed and attached. 157 * kbdc_soft[] contains the default entry for that purpose. 158 * See atkbdc.c. XXX 159 */ 160 sc = atkbdc_get_softc(unit); 161 if (sc == NULL) 162 return ENOMEM; 163 } 164 165 rid = 0; 166 sc->port0 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 167 RF_ACTIVE); 168 if (sc->port0 == NULL) 169 return ENXIO; 170 rid = 1; 171 sc->port1 = bus_alloc_resource_any(dev, SYS_RES_IOPORT, &rid, 172 RF_ACTIVE); 173 if (sc->port1 == NULL) { 174 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 175 return ENXIO; 176 } 177 178 error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1); 179 if (error) { 180 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 181 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1); 182 return error; 183 } 184 *(atkbdc_softc_t **)device_get_softc(dev) = sc; 185 186 bus_generic_attach(dev); 187 188 return 0; 189 } 190 191 static device_t 192 atkbdc_isa_add_child(device_t bus, int order, char *name, int unit) 193 { 194 atkbdc_device_t *ivar; 195 device_t child; 196 int t; 197 198 ivar = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, 199 M_NOWAIT | M_ZERO); 200 if (!ivar) 201 return NULL; 202 203 child = device_add_child_ordered(bus, order, name, unit); 204 if (child == NULL) { 205 free(ivar, M_ATKBDDEV); 206 return child; 207 } 208 209 resource_list_init(&ivar->resources); 210 ivar->rid = order; 211 212 /* 213 * If the device is not created by the PnP BIOS or ACPI, 214 * refer to device hints for IRQ. 215 */ 216 if (ISA_PNP_PROBE(device_get_parent(bus), bus, atkbdc_ids) != 0) { 217 if (resource_int_value(name, unit, "irq", &t) != 0) 218 t = -1; 219 } else { 220 t = bus_get_resource_start(bus, SYS_RES_IRQ, ivar->rid); 221 } 222 if (t > 0) 223 resource_list_add(&ivar->resources, SYS_RES_IRQ, ivar->rid, 224 t, t, 1); 225 226 if (resource_disabled(name, unit)) 227 device_disable(child); 228 229 device_set_ivars(child, ivar); 230 231 return child; 232 } 233 234 DRIVER_MODULE(atkbdc, isa, atkbdc_isa_driver, atkbdc_devclass, 0, 0); 235 DRIVER_MODULE(atkbdc, acpi, atkbdc_isa_driver, atkbdc_devclass, 0, 0); 236