/* $NetBSD: pckbc_pnpbios.c,v 1.18 2014/03/23 02:57:58 christos Exp $ */ /*- * Copyright (c) 2000 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ /* * PNPBIOS attachment for the PC Keyboard Controller driver. * * This is a little wonky. The keyboard controller actually * has 2 PNPBIOS nodes: one for the controller and the keyboard * interrupt, and one for the aux port (mouse) interrupt. * * For this reason, we actually attach *two* instances of this * driver. After both of them have been found, then we attach * sub-devices. */ #include __KERNEL_RCSID(0, "$NetBSD: pckbc_pnpbios.c,v 1.18 2014/03/23 02:57:58 christos Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include int pckbc_pnpbios_match(device_t, cfdata_t, void *); void pckbc_pnpbios_attach(device_t, device_t, void *); struct pckbc_pnpbios_softc { struct pckbc_softc sc_pckbc; isa_chipset_tag_t sc_ic; int sc_irq; int sc_ist; pckbc_slot_t sc_slot; }; /* Save first port: */ static struct pckbc_pnpbios_softc *first; extern struct cfdriver pckbc_cd; CFATTACH_DECL_NEW(pckbc_pnpbios, sizeof(struct pckbc_pnpbios_softc), pckbc_pnpbios_match, pckbc_pnpbios_attach, NULL, NULL); void pckbc_pnpbios_intr_establish(struct pckbc_softc *, pckbc_slot_t); static void pckbc_pnpbios_finish_attach(device_t); int pckbc_pnpbios_match(device_t parent, cfdata_t match, void *aux) { struct pnpbiosdev_attach_args *aa = aux; if (strcmp(aa->idstr, "PNP0303") == 0 || strcmp(aa->idstr, "PNP0320") == 0) /* Japanese 106 */ return (1); /* plus more? */ if (strcmp(aa->idstr, "PNP0F13") == 0) return (1); return (0); } void pckbc_pnpbios_attach(device_t parent, device_t self, void *aux) { struct pckbc_pnpbios_softc *psc = device_private(self); struct pckbc_softc *sc = &psc->sc_pckbc; struct pckbc_internal *t; struct pnpbiosdev_attach_args *aa = aux; bus_space_tag_t iot; bus_space_handle_t ioh_d, ioh_c; int iobase; sc->sc_dv = self; if (strncmp(aa->idstr, "PNP03", 5) == 0) { psc->sc_slot = PCKBC_KBD_SLOT; } else if (strcmp(aa->idstr, "PNP0F13") == 0) { psc->sc_slot = PCKBC_AUX_SLOT; } else { aprint_error(": unknown port!\n"); panic("pckbc_pnpbios_attach: impossible"); } aprint_normal(": %s port\n", pckbc_slot_names[psc->sc_slot]); if (pnpbios_getirqnum(aa->pbt, aa->resc, 0, &psc->sc_irq, &psc->sc_ist) != 0) { aprint_error_dev(self, "unable to get IRQ number or type\n"); return; } psc->sc_ic = aa->ic; if (!first) first = psc; if (!first->sc_pckbc.id) { if (pnpbios_getiobase(aa->pbt, aa->resc, 0, &iot, &iobase)) return; if (pckbc_is_console(iot, iobase)) { t = &pckbc_consdata; ioh_d = t->t_ioh_d; ioh_c = t->t_ioh_c; pckbc_console_attached = 1; /* t->t_cmdbyte was initialized by cnattach */ } else { if (pnpbios_io_map(aa->pbt, aa->resc, 0, &iot, &ioh_d) || pnpbios_io_map(aa->pbt, aa->resc, 1, &iot, &ioh_c)) panic("pckbc_pnpbios_attach: couldn't map"); t = malloc(sizeof(struct pckbc_internal), M_DEVBUF, M_WAITOK); memset(t, 0, sizeof(*t)); t->t_iot = iot; t->t_ioh_d = ioh_d; t->t_ioh_c = ioh_c; t->t_addr = iobase; t->t_cmdbyte = KC8_CPU; /* Enable ports */ callout_init(&t->t_cleanup, 0); } t->t_sc = &first->sc_pckbc; first->sc_pckbc.id = t; first->sc_pckbc.intr_establish = pckbc_pnpbios_intr_establish; config_defer(first->sc_pckbc.sc_dv, pckbc_pnpbios_finish_attach); } } static void pckbc_pnpbios_finish_attach(device_t dv) { pckbc_attach(device_private(dv)); } void pckbc_pnpbios_intr_establish(struct pckbc_softc *sc, pckbc_slot_t slot) { struct pckbc_pnpbios_softc *psc; isa_chipset_tag_t ic = NULL; void *rv = NULL; int irq, ist; int i; /* * Note we're always called with sc == first. */ for (i = 0; i < pckbc_cd.cd_ndevs; i++) { psc = device_lookup_private(&pckbc_cd, i); if (psc && psc->sc_slot == slot) { irq = psc->sc_irq; ist = psc->sc_ist; ic = psc->sc_ic; break; } } if (i < pckbc_cd.cd_ndevs) rv = isa_intr_establish(ic, irq, ist, IPL_TTY, pckbcintr, sc); if (rv == NULL) { aprint_error_dev(sc->sc_dv, "unable to establish interrupt for %s slot\n", pckbc_slot_names[slot]); } else { aprint_normal_dev(sc->sc_dv, "using irq %d for %s slot\n", irq, pckbc_slot_names[slot]); } }