1 /* $NetBSD: fdc_sableio.c,v 1.15 2015/04/13 21:18:40 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 1999, 2000 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: fdc_sableio.c,v 1.15 2015/04/13 21:18:40 riastradh Exp $"); 35 36 #include <sys/param.h> 37 #include <sys/systm.h> 38 #include <sys/callout.h> 39 #include <sys/device.h> 40 #include <sys/buf.h> 41 42 #include <sys/bus.h> 43 #include <machine/intr.h> 44 45 #include <dev/isa/isavar.h> 46 #include <dev/isa/isadmavar.h> 47 48 #include <dev/isa/fdreg.h> 49 #include <dev/isa/fdcvar.h> 50 51 #include <dev/pci/pcivar.h> 52 53 #include <alpha/sableio/sableiovar.h> 54 55 int fdc_sableio_match(device_t, cfdata_t, void *); 56 void fdc_sableio_attach(device_t, device_t, void *); 57 58 struct fdc_sableio_softc { 59 struct fdc_softc sc_fdc; /* real "fdc" softc */ 60 61 bus_space_handle_t sc_baseioh; /* base I/O handle */ 62 }; 63 64 CFATTACH_DECL_NEW(fdc_sableio, sizeof(struct fdc_sableio_softc), 65 fdc_sableio_match, fdc_sableio_attach, NULL, NULL); 66 67 int 68 fdc_sableio_match(device_t parent, cfdata_t match, void *aux) 69 { 70 struct sableio_attach_args *sa = aux; 71 72 /* Always present. */ 73 if (strcmp(sa->sa_name, match->cf_name) == 0) 74 return (1); 75 76 return (0); 77 } 78 79 void 80 fdc_sableio_attach(device_t parent, device_t self, void *aux) 81 { 82 struct fdc_sableio_softc *sfdc = device_private(self); 83 struct fdc_softc *fdc = &sfdc->sc_fdc; 84 struct sableio_attach_args *sa = aux; 85 const char *intrstr; 86 char buf[PCI_INTRSTR_LEN]; 87 88 aprint_normal("\n"); 89 90 fdc->sc_dev = self; 91 fdc->sc_iot = sa->sa_iot; 92 fdc->sc_ic = sa->sa_ic; 93 fdc->sc_drq = sa->sa_drq; 94 95 if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr, 6 /* FDC_NPORT */, 0, 96 &sfdc->sc_baseioh)) { 97 aprint_error_dev(self, "unable to map I/O space\n"); 98 return; 99 } 100 101 if (bus_space_subregion(fdc->sc_iot, sfdc->sc_baseioh, 2, 4, 102 &fdc->sc_ioh)) { 103 aprint_error_dev(self, "unable to subregion I/O space\n"); 104 return; 105 } 106 107 if (bus_space_map(fdc->sc_iot, sa->sa_ioaddr + fdctl + 2, 1, 0, 108 &fdc->sc_fdctlioh)) { 109 aprint_error_dev(self, "unable to map CTL I/O space\n"); 110 return; 111 } 112 113 intrstr = pci_intr_string(sa->sa_pc, sa->sa_sableirq[0], 114 buf, sizeof(buf)); 115 fdc->sc_ih = pci_intr_establish(sa->sa_pc, sa->sa_sableirq[0], 116 IPL_BIO, fdcintr, fdc); 117 if (fdc->sc_ih == NULL) { 118 aprint_error_dev(self, "unable to establish interrupt"); 119 if (intrstr != NULL) 120 aprint_error(" at %s", intrstr); 121 aprint_error("\n"); 122 return; 123 } 124 aprint_normal_dev(self, "interrupting at %s\n", intrstr); 125 126 fdcattach(fdc); 127 } 128