/* $NetBSD: eisa_machdep.c,v 1.42 2024/05/01 16:28:33 andvar Exp $ */ /*- * Copyright (c) 1997, 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility, * NASA Ames Research Center. * * 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. */ /* * Copyright (c) 1996 Christopher G. Demetriou. All rights reserved. * * 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. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Christopher G. Demetriou * for the NetBSD Project. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. */ /* * Machine-specific functions for EISA autoconfiguration. */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: eisa_machdep.c,v 1.42 2024/05/01 16:28:33 andvar Exp $"); #include "ioapic.h" #include <sys/types.h> #include <sys/param.h> #include <sys/time.h> #include <sys/systm.h> #include <sys/errno.h> #include <sys/device.h> #include <sys/bus.h> #include <machine/bus_private.h> #include <dev/isa/isareg.h> #include <dev/isa/isavar.h> #include <dev/eisa/eisavar.h> #if NIOAPIC > 0 #include <machine/i82093var.h> #include <machine/mpbiosvar.h> #endif /* * EISA doesn't have any special needs; just use the generic versions * of these functions. * * XXX really doesn't use bounce buffers? --dyoung */ struct x86_bus_dma_tag eisa_bus_dma_tag = { ._tag_needs_free = 0, ._bounce_thresh = 0, ._bounce_alloc_lo = 0, ._bounce_alloc_hi = 0, ._may_bounce = NULL, }; void eisa_attach_hook(device_t parent, device_t self, struct eisabus_attach_args *eba) { extern int eisa_has_been_seen; /* * Notify others that might need to know that the EISA bus * has now been attached. */ if (eisa_has_been_seen) panic("eisaattach: EISA bus already seen!"); eisa_has_been_seen = 1; } int eisa_maxslots(eisa_chipset_tag_t ec) { /* * Always try 16 slots. */ return (16); } int eisa_intr_map(eisa_chipset_tag_t ec, u_int irq, eisa_intr_handle_t *ihp) { if (irq >= NUM_LEGACY_IRQS) { aprint_error("eisa_intr_map: bad IRQ %d\n", irq); *ihp = -1; return 1; } if (irq == 2) { aprint_verbose("eisa_intr_map: changed IRQ 2 to IRQ 9\n"); irq = 9; } #if NIOAPIC > 0 if (mp_busses != NULL) { if (intr_find_mpmapping(mp_eisa_bus, irq, ihp) == 0 || intr_find_mpmapping(mp_isa_bus, irq, ihp) == 0) { *ihp |= irq; return 0; } else aprint_verbose("eisa_intr_map: no MP mapping found\n"); } #endif *ihp = irq; return 0; } const char * eisa_intr_string(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, char *buf, size_t len) { int irq; #if NIOAPIC > 0 irq = APIC_IRQ_LEGACY_IRQ(ih); #else irq = (int) ih; #endif if (ih == 0 || irq >= NUM_LEGACY_IRQS || ih == 2) panic("eisa_intr_string: bogus handle 0x%" PRIx64, ih); #if NIOAPIC > 0 if (ih & APIC_INT_VIA_APIC) snprintf(buf, len, "apic %d int %d (irq %d)", APIC_IRQ_APIC(ih), APIC_IRQ_PIN(ih), irq); else snprintf(buf, len, "irq %d", irq); #else snprintf(buf, len, "irq %d", irq); #endif return buf; } const struct evcnt * eisa_intr_evcnt(eisa_chipset_tag_t ec, eisa_intr_handle_t ih) { /* XXX for now, no evcnt parent reported */ return NULL; } void * eisa_intr_establish(eisa_chipset_tag_t ec, eisa_intr_handle_t ih, int type, int level, int (*func)(void *), void *arg) { int pin, irq; struct pic *pic; pic = &i8259_pic; pin = irq = ih; #if NIOAPIC > 0 if (ih & APIC_INT_VIA_APIC) { struct ioapic_softc * const ioapic = ioapic_find(APIC_IRQ_APIC(ih)); if (ioapic == NULL) { aprint_normal("eisa_intr_establish: bad ioapic %d\n", APIC_IRQ_APIC(ih)); return NULL; } pic = &ioapic->sc_pic; pin = APIC_IRQ_PIN(ih); irq = APIC_IRQ_LEGACY_IRQ(ih); if (irq < 0 || irq >= NUM_LEGACY_IRQS) irq = -1; } #endif return intr_establish(irq, pic, pin, type, level, func, arg, false); } void eisa_intr_disestablish(eisa_chipset_tag_t ec, void *cookie) { intr_disestablish(cookie); } int eisa_conf_read_mem(eisa_chipset_tag_t ec, int slot, int func, int entry, struct eisa_cfg_mem *ecm) { /* XXX XXX XXX */ return (ENOENT); } int eisa_conf_read_irq(eisa_chipset_tag_t ec, int slot, int func, int entry, struct eisa_cfg_irq *eci) { /* XXX XXX XXX */ return (ENOENT); } int eisa_conf_read_dma(eisa_chipset_tag_t ec, int slot, int func, int entry, struct eisa_cfg_dma *ecd) { /* XXX XXX XXX */ return (ENOENT); } int eisa_conf_read_io(eisa_chipset_tag_t ec, int slot, int func, int entry, struct eisa_cfg_io *ecio) { /* XXX XXX XXX */ return (ENOENT); }
