1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer as 12 * the first lines of this file unmodified. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <sys/cdefs.h> 30 __FBSDID("$FreeBSD$"); 31 32 #include "opt_kbd.h" 33 #include "opt_evdev.h" 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/kernel.h> 38 #include <sys/module.h> 39 #include <sys/bus.h> 40 41 #include <machine/bus.h> 42 #include <machine/resource.h> 43 #include <sys/rman.h> 44 45 #include <sys/kbio.h> 46 #include <dev/kbd/kbdreg.h> 47 #include <dev/atkbdc/atkbdreg.h> 48 #include <dev/atkbdc/atkbdcreg.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 atkbdintr(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, RF_ACTIVE); 101 if (res == NULL) { 102 if (bootverbose) 103 device_printf(dev, "unable to allocate IRQ\n"); 104 return ENXIO; 105 } 106 irq = rman_get_start(res); 107 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 108 109 /* probe the device */ 110 return atkbd_probe_unit(dev, irq, flags); 111 } 112 113 static int 114 atkbdattach(device_t dev) 115 { 116 atkbd_softc_t *sc; 117 keyboard_t *kbd; 118 u_long irq; 119 int flags; 120 int rid; 121 int error; 122 123 sc = device_get_softc(dev); 124 125 rid = KBDC_RID_KBD; 126 irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid); 127 flags = device_get_flags(dev); 128 error = atkbd_attach_unit(dev, &kbd, irq, flags); 129 if (error) 130 return error; 131 132 /* declare our interrupt handler */ 133 sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 134 if (sc->intr == NULL) 135 return ENXIO; 136 error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, NULL, atkbdintr, 137 kbd, &sc->ih); 138 if (error) 139 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr); 140 141 return error; 142 } 143 144 static int 145 atkbdresume(device_t dev) 146 { 147 atkbd_softc_t *sc; 148 keyboard_t *kbd; 149 int args[2]; 150 151 sc = device_get_softc(dev); 152 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME, 153 device_get_unit(dev))); 154 if (kbd) { 155 kbd->kb_flags &= ~KB_INITIALIZED; 156 args[0] = device_get_unit(device_get_parent(dev)); 157 args[1] = rman_get_start(sc->intr); 158 kbdd_init(kbd, device_get_unit(dev), &kbd, args, 159 device_get_flags(dev)); 160 kbdd_clear_state(kbd); 161 } 162 return 0; 163 } 164 165 static void 166 atkbdintr(void *arg) 167 { 168 keyboard_t *kbd; 169 170 kbd = (keyboard_t *)arg; 171 kbdd_intr(kbd, NULL); 172 } 173 174 DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0); 175 #ifdef EVDEV_SUPPORT 176 MODULE_DEPEND(atkbd, evdev, 1, 1, 1); 177 #endif 178