pckbc_pnpbios.c revision 1.1
1 /* $NetBSD: pckbc_pnpbios.c,v 1.1 2000/04/22 06:41:34 thorpej Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * PNPBIOS attachment for the PC Keyboard Controller driver. 41 * 42 * This is a little wonky. The keyboard controller actually 43 * has 2 PNPBIOS nodes: one for the controller and the keyboard 44 * interrupt, and one for the aux port (mouse) interrupt. 45 * 46 * For this reason, we actually attach *two* instances of this 47 * driver. After both of them have been found, then we attach 48 * sub-devices. 49 */ 50 51 #include <sys/param.h> 52 #include <sys/systm.h> 53 #include <sys/kernel.h> 54 #include <sys/proc.h> 55 #include <sys/device.h> 56 #include <sys/malloc.h> 57 #include <sys/errno.h> 58 #include <sys/queue.h> 59 #include <sys/lock.h> 60 61 #include <machine/bus.h> 62 63 #include <dev/isa/isareg.h> 64 #include <dev/isa/isavar.h> 65 66 #include <dev/ic/i8042reg.h> 67 #include <dev/ic/pckbcvar.h> 68 69 #include <i386/pnpbios/pnpbiosvar.h> 70 71 int pckbc_pnpbios_match(struct device *, struct cfdata *, void *); 72 void pckbc_pnpbios_attach(struct device *, struct device *, void *); 73 74 struct pckbc_pnpbios_softc { 75 struct pckbc_softc sc_pckbc; 76 77 int sc_irq; 78 int sc_ist; 79 pckbc_slot_t sc_slot; 80 81 /* Only on keyboard port... */ 82 void *sc_ih; 83 struct pckbc_pnpbios_softc *sc_aux_port; 84 }; 85 86 extern struct cfdriver pckbc_cd; 87 88 struct cfattach pckbc_pnpbios_ca = { 89 sizeof(struct pckbc_pnpbios_softc), pckbc_pnpbios_match, 90 pckbc_pnpbios_attach, 91 }; 92 93 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 94 95 int 96 pckbc_pnpbios_match(struct device *parent, 97 struct cfdata *match, 98 void *aux) 99 { 100 struct pnpbiosdev_attach_args *aa = aux; 101 102 if (strcmp(aa->idstr, "PNP0303") == 0) 103 return (1); 104 if (strcmp(aa->idstr, "PNP0F13") == 0) 105 return (1); 106 107 return (0); 108 } 109 110 void 111 pckbc_pnpbios_attach(struct device *parent, 112 struct device *self, 113 void *aux) 114 { 115 struct pckbc_pnpbios_softc *psc = (void *) self, *peer_psc, *kbd_psc; 116 struct pckbc_softc *sc = &psc->sc_pckbc; 117 struct pckbc_internal *t; 118 struct pnpbiosdev_attach_args *aa = aux; 119 bus_space_tag_t iot; 120 bus_space_handle_t ioh_d, ioh_c; 121 pckbc_slot_t peer; 122 int iobase, i; 123 124 if (strcmp(aa->idstr, "PNP0303") == 0) { 125 psc->sc_slot = PCKBC_KBD_SLOT; 126 peer = PCKBC_AUX_SLOT; 127 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 128 psc->sc_slot = PCKBC_AUX_SLOT; 129 peer = PCKBC_KBD_SLOT; 130 } else { 131 printf(": unknown port!\n"); 132 panic("pckbc_pnpbios_attach: impossible"); 133 } 134 135 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 136 137 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 138 &psc->sc_ist) != 0) { 139 printf("%s: unable to get IRQ number or type\n", 140 sc->sc_dv.dv_xname); 141 return; 142 } 143 144 if (psc->sc_slot == PCKBC_KBD_SLOT) { 145 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) { 146 printf("%s: can't get iobase\n", sc->sc_dv.dv_xname); 147 return; 148 } 149 150 sc->intr_establish = pckbc_pnpbios_intr_establish; 151 152 if (pckbc_is_console(iot, iobase)) { 153 t = &pckbc_consdata; 154 ioh_d = t->t_ioh_d; 155 ioh_c = t->t_ioh_c; 156 pckbc_console_attached = 1; 157 /* t->t_cmdbyte was initialized by cnattach */ 158 } else { 159 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 160 &iot, &ioh_d) || 161 pnpbios_io_map(aa->pbt, aa->resc, 1, 162 &iot, &ioh_c)) 163 panic("pckbc_pnpbios_attach: couldn't map"); 164 165 t = malloc(sizeof(struct pckbc_internal), 166 M_DEVBUF, M_WAITOK); 167 memset(t, 0, sizeof(*t)); 168 t->t_iot = iot; 169 t->t_ioh_d = ioh_d; 170 t->t_ioh_c = ioh_c; 171 t->t_addr = iobase; 172 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 173 callout_init(&t->t_cleanup); 174 } 175 176 t->t_sc = sc; 177 sc->id = t; 178 } 179 180 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 181 peer_psc = pckbc_cd.cd_devs[i]; 182 if (peer_psc != NULL && 183 peer_psc != psc && 184 peer_psc->sc_pckbc.sc_dv.dv_parent == 185 psc->sc_pckbc.sc_dv.dv_parent) 186 break; 187 peer_psc = NULL; 188 } 189 190 if (peer_psc != NULL) { 191 /* 192 * Have both -- finish attaching the one marked "keyboard". 193 */ 194 if (psc->sc_slot == PCKBC_KBD_SLOT) { 195 kbd_psc = psc; 196 kbd_psc->sc_aux_port = peer_psc; 197 } else { 198 kbd_psc = peer_psc; 199 kbd_psc->sc_aux_port = psc; 200 } 201 pckbc_attach(&kbd_psc->sc_pckbc); 202 } 203 } 204 205 void 206 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 207 pckbc_slot_t slot) 208 { 209 struct pckbc_pnpbios_softc *psc = (void *) sc; 210 void *rv; 211 int irq, ist; 212 213 /* 214 * Note we're always called with the keyboard slot. 215 */ 216 217 if (slot == PCKBC_KBD_SLOT) { 218 irq = psc->sc_irq; 219 ist = psc->sc_ist; 220 } else { 221 irq = psc->sc_aux_port->sc_irq; 222 ist = psc->sc_aux_port->sc_ist; 223 } 224 225 rv = isa_intr_establish(0/*XXX*/, irq, ist, IPL_TTY, pckbcintr, sc); 226 if (rv == NULL) { 227 printf("%s: unable to establish interrupt for %s slot\n", 228 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 229 } else { 230 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 231 irq, pckbc_slot_names[slot]); 232 } 233 } 234
Indexes created Wed Oct 01 13:09:50 GMT 2025