1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 #include "opt_kbd.h" 31 #include "opt_evdev.h" 32 33 #include <sys/param.h> 34 #include <sys/systm.h> 35 #include <sys/kernel.h> 36 #include <sys/module.h> 37 #include <sys/bus.h> 38 39 #include <machine/bus.h> 40 #include <machine/resource.h> 41 #include <sys/rman.h> 42 43 #include <sys/kbio.h> 44 #include <dev/kbd/kbdreg.h> 45 #include <dev/atkbdc/atkbdreg.h> 46 #include <dev/atkbdc/atkbdcreg.h> 47 48 typedef struct { 49 struct resource *intr; 50 void *ih; 51 } atkbd_softc_t; 52 53 static void atkbdidentify(driver_t *driver, device_t dev); 54 static int atkbdprobe(device_t dev); 55 static int atkbdattach(device_t dev); 56 static int atkbdresume(device_t dev); 57 static void atkbdintr(void *arg); 58 59 static device_method_t atkbd_methods[] = { 60 DEVMETHOD(device_identify, atkbdidentify), 61 DEVMETHOD(device_probe, atkbdprobe), 62 DEVMETHOD(device_attach, atkbdattach), 63 DEVMETHOD(device_resume, atkbdresume), 64 { 0, 0 } 65 }; 66 67 static driver_t atkbd_driver = { 68 ATKBD_DRIVER_NAME, 69 atkbd_methods, 70 sizeof(atkbd_softc_t), 71 }; 72 73 static void 74 atkbdidentify(driver_t *driver, device_t parent) 75 { 76 77 /* always add at least one child */ 78 BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent)); 79 } 80 81 static int 82 atkbdprobe(device_t dev) 83 { 84 struct resource *res; 85 u_long irq; 86 int flags; 87 int rid; 88 89 device_set_desc(dev, "AT Keyboard"); 90 91 /* obtain parameters */ 92 flags = device_get_flags(dev); 93 94 /* see if IRQ is available */ 95 rid = KBDC_RID_KBD; 96 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 97 if (res == NULL) { 98 if (bootverbose) 99 device_printf(dev, "unable to allocate IRQ\n"); 100 return ENXIO; 101 } 102 irq = rman_get_start(res); 103 bus_release_resource(dev, SYS_RES_IRQ, rid, res); 104 105 /* probe the device */ 106 return atkbd_probe_unit(dev, irq, flags); 107 } 108 109 static int 110 atkbdattach(device_t dev) 111 { 112 atkbd_softc_t *sc; 113 keyboard_t *kbd; 114 u_long irq; 115 int flags; 116 int rid; 117 int error; 118 119 sc = device_get_softc(dev); 120 121 rid = KBDC_RID_KBD; 122 irq = bus_get_resource_start(dev, SYS_RES_IRQ, rid); 123 flags = device_get_flags(dev); 124 error = atkbd_attach_unit(dev, &kbd, irq, flags); 125 if (error) 126 return error; 127 128 /* declare our interrupt handler */ 129 sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE); 130 if (sc->intr == NULL) 131 return ENXIO; 132 error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, NULL, atkbdintr, 133 kbd, &sc->ih); 134 if (error) 135 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr); 136 137 return error; 138 } 139 140 static int 141 atkbdresume(device_t dev) 142 { 143 atkbd_softc_t *sc; 144 keyboard_t *kbd; 145 int args[2]; 146 147 sc = device_get_softc(dev); 148 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME, 149 device_get_unit(dev))); 150 if (kbd) { 151 kbd->kb_flags &= ~KB_INITIALIZED; 152 args[0] = device_get_unit(device_get_parent(dev)); 153 args[1] = rman_get_start(sc->intr); 154 kbdd_init(kbd, device_get_unit(dev), &kbd, args, 155 device_get_flags(dev)); 156 kbdd_clear_state(kbd); 157 } 158 return 0; 159 } 160 161 static void 162 atkbdintr(void *arg) 163 { 164 keyboard_t *kbd; 165 166 kbd = (keyboard_t *)arg; 167 kbdd_intr(kbd, NULL); 168 } 169 170 DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, 0, 0); 171 #ifdef EVDEV_SUPPORT 172 MODULE_DEPEND(atkbd, evdev, 1, 1, 1); 173 #endif 174