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 38 #include <machine/bus.h> 39 #include <machine/resource.h> 40 #include <sys/rman.h> 41 42 #include <sys/kbio.h> 43 #include <dev/kbd/kbdreg.h> 44 #include <dev/kbd/atkbdreg.h> 45 #include <dev/kbd/atkbdcreg.h> 46 47 #include <isa/isareg.h> 48 #include <isa/isavar.h> 49 50 typedef struct { 51 struct resource *intr; 52 void *ih; 53 } atkbd_softc_t; 54 55 static devclass_t atkbd_devclass; 56 57 static void atkbdidentify(driver_t *driver, device_t dev); 58 static int atkbdprobe(device_t dev); 59 static int atkbdattach(device_t dev); 60 static int atkbdresume(device_t dev); 61 static void atkbd_isa_intr(void *arg); 62 63 static device_method_t atkbd_methods[] = { 64 DEVMETHOD(device_identify, atkbdidentify), 65 DEVMETHOD(device_probe, atkbdprobe), 66 DEVMETHOD(device_attach, atkbdattach), 67 DEVMETHOD(device_resume, atkbdresume), 68 { 0, 0 } 69 }; 70 71 static driver_t atkbd_driver = { 72 ATKBD_DRIVER_NAME, 73 atkbd_methods, 74 sizeof(atkbd_softc_t), 75 }; 76 77 static void 78 atkbdidentify(driver_t *driver, device_t parent) 79 { 80 81 /* always add at least one child */ 82 BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent)); 83 } 84 85 static int 86 atkbdprobe(device_t dev) 87 { 88 struct resource *res; 89 u_long irq; 90 int flags; 91 int rid; 92 93 device_set_desc(dev, "AT Keyboard"); 94 95 /* obtain parameters */ 96 flags = device_get_flags(dev); 97 98 /* see if IRQ is available */ 99 rid = KBDC_RID_KBD; 100 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 101 RF_SHAREABLE | RF_ACTIVE); 102 if (res == NULL) { 103 if (bootverbose) 104 device_printf(dev, "unable to allocate IRQ\n"); 105 return ENXIO; 106 } 107 irq = rman_get_start(res); 108 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 109 110 /* probe the device */ 111 return atkbd_probe_unit(device_get_unit(dev), 112 device_get_unit(device_get_parent(dev)), 113 irq, flags); 114 } 115 116 static int 117 atkbdattach(device_t dev) 118 { 119 atkbd_softc_t *sc; 120 keyboard_t *kbd; 121 u_long irq; 122 int flags; 123 int rid; 124 int error; 125 126 sc = device_get_softc(dev); 127 128 rid = KBDC_RID_KBD; 129 irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid); 130 flags = device_get_flags(dev); 131 error = atkbd_attach_unit(device_get_unit(dev), &kbd, 132 device_get_unit(device_get_parent(dev)), 133 irq, flags); 134 if (error) 135 return error; 136 137 /* declare our interrupt handler */ 138 sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 139 RF_SHAREABLE | RF_ACTIVE); 140 if (sc->intr == NULL) 141 return ENXIO; 142 error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, atkbd_isa_intr, 143 kbd, &sc->ih); 144 if (error) 145 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr); 146 147 return error; 148 } 149 150 static int 151 atkbdresume(device_t dev) 152 { 153 atkbd_softc_t *sc; 154 keyboard_t *kbd; 155 int args[2]; 156 157 sc = device_get_softc(dev); 158 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME, 159 device_get_unit(dev))); 160 if (kbd) { 161 kbd->kb_flags &= ~KB_INITIALIZED; 162 args[0] = device_get_unit(device_get_parent(dev)); 163 args[1] = rman_get_start(sc->intr); 164 (*kbdsw[kbd->kb_index]->init)(device_get_unit(dev), &kbd, 165 args, device_get_flags(dev)); 166 (*kbdsw[kbd->kb_index]->clear_state)(kbd); 167 } 168 return 0; 169 } 170 171 static void 172 atkbd_isa_intr(void *arg) 173 { 174 keyboard_t *kbd; 175 176 kbd = (keyboard_t *)arg; 177 (*kbdsw[kbd->kb_index]->intr)(kbd, NULL); 178 } 179 180 DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0); 181