pckbc_pnpbios.c revision 1.3
1 /* $NetBSD: pckbc_pnpbios.c,v 1.3 2001/11/15 07:03:35 lukem 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/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: pckbc_pnpbios.c,v 1.3 2001/11/15 07:03:35 lukem Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/systm.h> 56 #include <sys/kernel.h> 57 #include <sys/proc.h> 58 #include <sys/device.h> 59 #include <sys/malloc.h> 60 #include <sys/errno.h> 61 #include <sys/queue.h> 62 #include <sys/lock.h> 63 64 #include <machine/bus.h> 65 66 #include <dev/isa/isareg.h> 67 #include <dev/isa/isavar.h> 68 69 #include <dev/ic/i8042reg.h> 70 #include <dev/ic/pckbcvar.h> 71 72 #include <i386/pnpbios/pnpbiosvar.h> 73 74 int pckbc_pnpbios_match(struct device *, struct cfdata *, void *); 75 void pckbc_pnpbios_attach(struct device *, struct device *, void *); 76 77 struct pckbc_pnpbios_softc { 78 struct pckbc_softc sc_pckbc; 79 80 int sc_irq; 81 int sc_ist; 82 pckbc_slot_t sc_slot; 83 84 /* Only on keyboard port... */ 85 void *sc_ih; 86 struct pckbc_pnpbios_softc *sc_aux_port; 87 }; 88 89 extern struct cfdriver pckbc_cd; 90 91 struct cfattach pckbc_pnpbios_ca = { 92 sizeof(struct pckbc_pnpbios_softc), pckbc_pnpbios_match, 93 pckbc_pnpbios_attach, 94 }; 95 96 void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); 97 98 int 99 pckbc_pnpbios_match(struct device *parent, 100 struct cfdata *match, 101 void *aux) 102 { 103 struct pnpbiosdev_attach_args *aa = aux; 104 105 if (strcmp(aa->idstr, "PNP0303") == 0 || 106 strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ 107 return (1); /* plus more? */ 108 if (strcmp(aa->idstr, "PNP0F13") == 0) 109 return (1); 110 111 return (0); 112 } 113 114 void 115 pckbc_pnpbios_attach(struct device *parent, 116 struct device *self, 117 void *aux) 118 { 119 struct pckbc_pnpbios_softc *psc = (void *) self, *peer_psc, *kbd_psc; 120 struct pckbc_softc *sc = &psc->sc_pckbc; 121 struct pckbc_internal *t; 122 struct pnpbiosdev_attach_args *aa = aux; 123 bus_space_tag_t iot; 124 bus_space_handle_t ioh_d, ioh_c; 125 pckbc_slot_t peer; 126 int iobase, i; 127 128 if (strncmp(aa->idstr, "PNP03", 5) == 0) { 129 psc->sc_slot = PCKBC_KBD_SLOT; 130 peer = PCKBC_AUX_SLOT; 131 } else if (strcmp(aa->idstr, "PNP0F13") == 0) { 132 psc->sc_slot = PCKBC_AUX_SLOT; 133 peer = PCKBC_KBD_SLOT; 134 } else { 135 printf(": unknown port!\n"); 136 panic("pckbc_pnpbios_attach: impossible"); 137 } 138 139 printf(": %s port\n", pckbc_slot_names[psc->sc_slot]); 140 141 if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, 142 &psc->sc_ist) != 0) { 143 printf("%s: unable to get IRQ number or type\n", 144 sc->sc_dv.dv_xname); 145 return; 146 } 147 148 if (psc->sc_slot == PCKBC_KBD_SLOT) { 149 if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) { 150 printf("%s: can't get iobase\n", sc->sc_dv.dv_xname); 151 return; 152 } 153 154 sc->intr_establish = pckbc_pnpbios_intr_establish; 155 156 if (pckbc_is_console(iot, iobase)) { 157 t = &pckbc_consdata; 158 ioh_d = t->t_ioh_d; 159 ioh_c = t->t_ioh_c; 160 pckbc_console_attached = 1; 161 /* t->t_cmdbyte was initialized by cnattach */ 162 } else { 163 if (pnpbios_io_map(aa->pbt, aa->resc, 0, 164 &iot, &ioh_d) || 165 pnpbios_io_map(aa->pbt, aa->resc, 1, 166 &iot, &ioh_c)) 167 panic("pckbc_pnpbios_attach: couldn't map"); 168 169 t = malloc(sizeof(struct pckbc_internal), 170 M_DEVBUF, M_WAITOK); 171 memset(t, 0, sizeof(*t)); 172 t->t_iot = iot; 173 t->t_ioh_d = ioh_d; 174 t->t_ioh_c = ioh_c; 175 t->t_addr = iobase; 176 t->t_cmdbyte = KC8_CPU; /* Enable ports */ 177 callout_init(&t->t_cleanup); 178 } 179 180 t->t_sc = sc; 181 sc->id = t; 182 } 183 184 for (i = 0; i < pckbc_cd.cd_ndevs; i++) { 185 peer_psc = pckbc_cd.cd_devs[i]; 186 if (peer_psc != NULL && 187 peer_psc != psc && 188 peer_psc->sc_pckbc.sc_dv.dv_parent == 189 psc->sc_pckbc.sc_dv.dv_parent) 190 break; 191 peer_psc = NULL; 192 } 193 194 if (peer_psc != NULL) { 195 /* 196 * Have both -- finish attaching the one marked "keyboard". 197 */ 198 if (psc->sc_slot == PCKBC_KBD_SLOT) { 199 kbd_psc = psc; 200 kbd_psc->sc_aux_port = peer_psc; 201 } else { 202 kbd_psc = peer_psc; 203 kbd_psc->sc_aux_port = psc; 204 } 205 pckbc_attach(&kbd_psc->sc_pckbc); 206 } 207 } 208 209 void 210 pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, 211 pckbc_slot_t slot) 212 { 213 struct pckbc_pnpbios_softc *psc = (void *) sc; 214 void *rv; 215 int irq, ist; 216 217 /* 218 * Note we're always called with the keyboard slot. 219 */ 220 221 if (slot == PCKBC_KBD_SLOT) { 222 irq = psc->sc_irq; 223 ist = psc->sc_ist; 224 } else { 225 irq = psc->sc_aux_port->sc_irq; 226 ist = psc->sc_aux_port->sc_ist; 227 } 228 229 rv = isa_intr_establish(0/*XXX*/, irq, ist, IPL_TTY, pckbcintr, sc); 230 if (rv == NULL) { 231 printf("%s: unable to establish interrupt for %s slot\n", 232 sc->sc_dv.dv_xname, pckbc_slot_names[slot]); 233 } else { 234 printf("%s: using irq %d for %s slot\n", sc->sc_dv.dv_xname, 235 irq, pckbc_slot_names[slot]); 236 } 237 } 238
Indexes created Wed Oct 01 19:09:53 GMT 2025