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/atkbdc/atkbdreg.h> 45 #include <dev/atkbdc/atkbdcreg.h> 46 47 typedef struct { 48 struct resource *intr; 49 void *ih; 50 } atkbd_softc_t; 51 52 static devclass_t atkbd_devclass; 53 54 static void atkbdidentify(driver_t *driver, device_t dev); 55 static int atkbdprobe(device_t dev); 56 static int atkbdattach(device_t dev); 57 static int atkbdresume(device_t dev); 58 static void atkbdintr(void *arg); 59 60 static device_method_t atkbd_methods[] = { 61 DEVMETHOD(device_identify, atkbdidentify), 62 DEVMETHOD(device_probe, atkbdprobe), 63 DEVMETHOD(device_attach, atkbdattach), 64 DEVMETHOD(device_resume, atkbdresume), 65 { 0, 0 } 66 }; 67 68 static driver_t atkbd_driver = { 69 ATKBD_DRIVER_NAME, 70 atkbd_methods, 71 sizeof(atkbd_softc_t), 72 }; 73 74 static void 75 atkbdidentify(driver_t *driver, device_t parent) 76 { 77 78 /* always add at least one child */ 79 BUS_ADD_CHILD(parent, KBDC_RID_KBD, driver->name, device_get_unit(parent)); 80 } 81 82 static int 83 atkbdprobe(device_t dev) 84 { 85 struct resource *res; 86 u_long irq; 87 int flags; 88 int rid; 89 90 device_set_desc(dev, "AT Keyboard"); 91 92 /* obtain parameters */ 93 flags = device_get_flags(dev); 94 95 /* see if IRQ is available */ 96 rid = KBDC_RID_KBD; 97 res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 98 RF_SHAREABLE | 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(device_get_unit(dev), 109 device_get_unit(device_get_parent(dev)), 110 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(device_get_unit(dev), &kbd, 129 device_get_unit(device_get_parent(dev)), 130 irq, flags); 131 if (error) 132 return error; 133 134 /* declare our interrupt handler */ 135 sc->intr = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 136 RF_SHAREABLE | RF_ACTIVE); 137 if (sc->intr == NULL) 138 return ENXIO; 139 error = bus_setup_intr(dev, sc->intr, INTR_TYPE_TTY, NULL, atkbdintr, 140 kbd, &sc->ih); 141 if (error) 142 bus_release_resource(dev, SYS_RES_IRQ, rid, sc->intr); 143 144 return error; 145 } 146 147 static int 148 atkbdresume(device_t dev) 149 { 150 atkbd_softc_t *sc; 151 keyboard_t *kbd; 152 int args[2]; 153 154 sc = device_get_softc(dev); 155 kbd = kbd_get_keyboard(kbd_find_keyboard(ATKBD_DRIVER_NAME, 156 device_get_unit(dev))); 157 if (kbd) { 158 kbd->kb_flags &= ~KB_INITIALIZED; 159 args[0] = device_get_unit(device_get_parent(dev)); 160 args[1] = rman_get_start(sc->intr); 161 kbdd_init(kbd, device_get_unit(dev), &kbd, args, 162 device_get_flags(dev)); 163 kbdd_clear_state(kbd); 164 } 165 return 0; 166 } 167 168 static void 169 atkbdintr(void *arg) 170 { 171 keyboard_t *kbd; 172 173 kbd = (keyboard_t *)arg; 174 kbdd_intr(kbd, NULL); 175 } 176 177 DRIVER_MODULE(atkbd, atkbdc, atkbd_driver, atkbd_devclass, 0, 0); 178