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