1/* $NetBSD: lpt_sableio.c,v 1.12 2021/05/07 16:58:34 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 1999 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32#include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 33 34__KERNEL_RCSID(0, "$NetBSD: lpt_sableio.c,v 1.12 2021/05/07 16:58:34 thorpej Exp $"); 35 36#include <sys/param.h> 37#include <sys/systm.h> 38#include <sys/ioctl.h> 39#include <sys/select.h> 40#include <sys/tty.h> 41#include <sys/proc.h> 42#include <sys/conf.h> 43#include <sys/file.h> 44#include <sys/uio.h> 45#include <sys/kernel.h> 46#include <sys/syslog.h> 47#include <sys/types.h> 48#include <sys/device.h> 49 50#include <machine/intr.h> 51#include <sys/bus.h> 52 53#include <dev/ic/lptreg.h> 54#include <dev/ic/lptvar.h> 55 56#include <dev/pci/pcivar.h> 57#include <dev/isa/isavar.h> 58 59#include <alpha/sableio/sableiovar.h> 60 61struct lpt_sableio_softc { 62 struct lpt_softc sc_lpt; /* real "lpt" softc */ 63 64 /* STDIO-specific goo. */ 65 void *sc_ih; /* interrupt handler */ 66}; 67 68static int lpt_sableio_match(device_t, cfdata_t , void *); 69static void lpt_sableio_attach(device_t, device_t, void *); 70 71CFATTACH_DECL_NEW(lpt_sableio, sizeof(struct lpt_sableio_softc), 72 lpt_sableio_match, lpt_sableio_attach, NULL, NULL); 73 74static int 75lpt_sableio_match(device_t parent, cfdata_t match, void *aux) 76{ 77 struct sableio_attach_args *sa = aux; 78 79 /* Always present. */ 80 if (strcmp(sa->sa_name, match->cf_name) == 0) 81 return (1); 82 83 return (0); 84} 85 86static void 87lpt_sableio_attach(device_t parent, device_t self, void *aux) 88{ 89 struct lpt_sableio_softc *ssc = device_private(self); 90 struct lpt_softc *sc = &ssc->sc_lpt; 91 struct sableio_attach_args *sa = aux; 92 const char *intrstr; 93 char buf[PCI_INTRSTR_LEN]; 94 pci_intr_handle_t ih; 95 96 sc->sc_dev = self; 97 sc->sc_iot = sa->sa_iot; 98 99 if (bus_space_map(sc->sc_iot, sa->sa_ioaddr, LPT_NPORTS, 0, 100 &sc->sc_ioh) != 0) { 101 aprint_error(": can't map i/o space\n"); 102 return; 103 } 104 105 aprint_normal("\n"); 106 aprint_naive("\n"); 107 108 lpt_attach_subr(sc); 109 110 alpha_pci_intr_handle_init(&ih, sa->sa_sableirq[0], 0); 111 112 intrstr = pci_intr_string(sa->sa_pc, ih, buf, sizeof(buf)); 113 ssc->sc_ih = pci_intr_establish(sa->sa_pc, ih, IPL_TTY, lptintr, sc); 114 if (ssc->sc_ih == NULL) { 115 aprint_error_dev(self, "unable to establish interrupt"); 116 if (intrstr != NULL) 117 aprint_error(" at %s", intrstr); 118 aprint_error("\n"); 119 return; 120 } 121 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 122} 123