/* $NetBSD: atppc_pioc.c,v 1.7 2023/12/20 06:13:59 thorpej Exp $ */ /*- * Copyright (c) 2001 Alcove - Nicolas Souchu * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. * * FreeBSD: src/sys/isa/ppc.c,v 1.26.2.5 2001/10/02 05:21:45 nsouch Exp * */ #include "opt_atppc.h" #include __KERNEL_RCSID(0, "$NetBSD: atppc_pioc.c,v 1.7 2023/12/20 06:13:59 thorpej Exp $"); #include #include #include #include #include #include #include #include #include "locators.h" /* Probe and attach functions for a atppc device on the PIOC. */ static int atppc_pioc_probe(device_t, cfdata_t, void *); static void atppc_pioc_attach(device_t, device_t, void *); CFATTACH_DECL_NEW(atppc_pioc, sizeof(struct atppc_softc), atppc_pioc_probe, atppc_pioc_attach, NULL, NULL); #define IO_LPTSIZE 8 /* * Probe function: find parallel port controller on isa bus. Combined from * lpt_isa_probe() in lpt.c and atppc_detect_port() from FreeBSD's ppc.c. */ static int atppc_pioc_probe(device_t parent, cfdata_t cf, void *aux) { bus_space_handle_t ioh; struct pioc_attach_args *pa = aux; bus_space_tag_t iot = pa->pa_iot; int addr = pa->pa_iobase + pa->pa_offset; int rval = 0; if (pa->pa_name && strcmp(pa->pa_name, "lpt") != 0) return 0; if (pa->pa_offset == PIOCCF_OFFSET_DEFAULT) { aprint_error_dev(parent, "(%s): io port unknown.\n", __func__); } else if (bus_space_map(iot, addr, IO_LPTSIZE, 0, &ioh) == 0) { if (atppc_detect_port(iot, ioh) == 0) rval = 1; else aprint_error_dev(parent, "(%s): unable to write/read I/O port.\n", __func__); bus_space_unmap(iot, ioh, IO_LPTSIZE); } else { aprint_error_dev(parent, "(%s): attempt to map bus space failed.\n", __func__); } return rval; } /* Attach function: attach and configure parallel port controller on isa bus. */ static void atppc_pioc_attach(device_t parent, device_t self, void *aux) { struct atppc_softc *sc = device_private(self); struct pioc_attach_args *pa = aux; bus_addr_t iobase; sc->sc_dev = self; sc->sc_iot = pa->pa_iot; sc->sc_has = 0; iobase = pa->pa_iobase + pa->pa_offset; if (bus_space_map(sc->sc_iot, iobase, IO_LPTSIZE, 0, &sc->sc_ioh) != 0) { aprint_error(": attempt to map bus space failed, device not " "properly attached.\n"); sc->sc_dev_ok = ATPPC_NOATTACH; return; } sc->sc_dev_ok = ATPPC_ATTACHED; /* Assign interrupt handler */ if (!(device_cfdata(self)->cf_flags & ATPPC_FLAG_DISABLE_INTR)) { if (pa->pa_irq != MAINBUSCF_IRQ_DEFAULT) { /* Establish interrupt handler. */ sc->sc_ieh = intr_claim(pa->pa_irq, IPL_TTY, "atppc", atppcintr, sc); sc->sc_has |= ATPPC_HAS_INTR; } else ATPPC_DPRINTF(("%s: IRQ not assigned or bad number of " "IRQs.\n", device_xname(self))); } else ATPPC_VPRINTF(("%s: interrupts not configured due to flags.\n", device_xname(self))); /* Run soft configuration attach */ atppc_sc_attach(sc); }