/* $NetBSD: isa_machdep.c,v 1.13 2014/03/08 18:08:16 skrll Exp $ */ /*- * Copyright (c) 1996-1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Jesse Off * * This code is derived from software contributed to The NetBSD Foundation * by Mark Brinicombe, Charles M. Hannum and 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) 1991 The Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * William Jolitz. * * 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. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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. * * @(#)isa.c 7.2 (Berkeley) 5/13/91 */ #include <sys/cdefs.h> __KERNEL_RCSID(0, "$NetBSD: isa_machdep.c,v 1.13 2014/03/08 18:08:16 skrll Exp $"); #include "opt_irqstats.h" #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/syslog.h> #include <sys/device.h> #include <sys/malloc.h> #include <sys/proc.h> #include <sys/bus.h> #include <machine/intr.h> #include <machine/pio.h> #include <machine/bootconfig.h> #include <machine/isa_machdep.h> #include <dev/isa/isareg.h> #include <dev/isa/isavar.h> #include <arm/ep93xx/ep93xxvar.h> #include <uvm/uvm_extern.h> /* prototypes */ void isa_tsarm_init(u_int, u_int); struct arm32_isa_chipset isa_chipset_tag; static unsigned int ep93xxirq[3] = { 20, 33, 40 }; /* only have 3 irqs connected to real lines on TS-7xxx */ static unsigned int isairq[3] = { 5, 6, 7 }; static unsigned int isairq_nhandlers[3] = { 0, 0, 0 }; int isa_intr_alloc(isa_chipset_tag_t ic, int mask, int type, int *irq) { int i, bestirq, count; if (type == IST_NONE) panic("intr_alloc: bogus type"); bestirq = -1; count = -1; /* some interrupts should never be dynamically allocated */ mask &= 0x00e0; for (i = 0; i < __arraycount(isairq); i++) { if ((mask & (1<<isairq[i])) == 0) continue; if (isairq_nhandlers[i] < count || count == -1) { bestirq = isairq[i]; count = isairq_nhandlers[i]; } } if (bestirq == -1) return (1); *irq = bestirq; return (0); } const struct evcnt * isa_intr_evcnt(isa_chipset_tag_t ic, int irq) { return NULL; } /* * Set up an interrupt handler to start being called. */ void * isa_intr_establish(isa_chipset_tag_t ic, int irq, int type, int level, int (*ih_fun)(void *), void *ih_arg) { int epirq = -1, i; /* Find real EP93XX irq number */ for(i = 0; i < __arraycount(isairq); i++) { if (irq == isairq[i]) epirq = ep93xxirq[i]; } if (epirq == -1) return NULL; else return (ep93xx_intr_establish(epirq, level, ih_fun, ih_arg)); } /* * Deregister an interrupt handler. */ void isa_intr_disestablish(isa_chipset_tag_t ic, void *arg) { ep93xx_intr_disestablish(arg); } void isa_tsarm_init(u_int iobase16, u_int membase16) { isa_io_init(iobase16, membase16); } /* * isa_intr_init() * * TODO: Set up ISA IRQ 5 on GPIO pin */ void isa_intr_init(void) { } void isa_attach_hook(device_t parent, device_t self, struct isabus_attach_args *iba) { /* * Since we can only have one ISA bus, we just use a single * statically allocated ISA chipset structure. Pass it up * now. */ iba->iba_ic = &isa_chipset_tag; printf(": PC/104 expansion bus"); } void isa_detach_hook(isa_chipset_tag_t ic, device_t self) { }