1 /*- 2 * Copyright (c) 2014, 2015 Marcel Moolenaar 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include <sys/cdefs.h> 27 __FBSDID("$FreeBSD$"); 28 29 #include <sys/param.h> 30 #include <sys/systm.h> 31 #include <sys/bus.h> 32 #include <sys/conf.h> 33 #include <sys/kernel.h> 34 #include <sys/module.h> 35 #include <machine/bus.h> 36 #include <sys/rman.h> 37 #include <machine/resource.h> 38 #include <sys/sbuf.h> 39 40 #include <dev/pci/pcireg.h> 41 #include <dev/pci/pcivar.h> 42 43 #include <dev/proto/proto.h> 44 45 static int proto_pci_probe(device_t dev); 46 static int proto_pci_attach(device_t dev); 47 48 static device_method_t proto_pci_methods[] = { 49 /* Device interface */ 50 DEVMETHOD(device_probe, proto_pci_probe), 51 DEVMETHOD(device_attach, proto_pci_attach), 52 DEVMETHOD(device_detach, proto_detach), 53 DEVMETHOD_END 54 }; 55 56 static driver_t proto_pci_driver = { 57 proto_driver_name, 58 proto_pci_methods, 59 sizeof(struct proto_softc), 60 }; 61 62 static char proto_pci_prefix[] = "pci"; 63 static char **proto_pci_devnames; 64 65 static int 66 proto_pci_probe(device_t dev) 67 { 68 struct sbuf *sb; 69 70 if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0) 71 return (ENXIO); 72 73 sb = sbuf_new_auto(); 74 sbuf_printf(sb, "%s%d:%d:%d:%d", proto_pci_prefix, pci_get_domain(dev), 75 pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)); 76 sbuf_finish(sb); 77 device_set_desc_copy(dev, sbuf_data(sb)); 78 sbuf_delete(sb); 79 return (proto_probe(dev, proto_pci_prefix, &proto_pci_devnames)); 80 } 81 82 static int 83 proto_pci_attach(device_t dev) 84 { 85 struct proto_softc *sc; 86 struct resource *res; 87 uint32_t val; 88 int bar, rid, type; 89 90 sc = device_get_softc(dev); 91 92 proto_add_resource(sc, PROTO_RES_PCICFG, 0, NULL); 93 proto_add_resource(sc, PROTO_RES_BUSDMA, 0, NULL); 94 95 for (bar = 0; bar < PCIR_MAX_BAR_0; bar++) { 96 rid = PCIR_BAR(bar); 97 val = pci_read_config(dev, rid, 4); 98 type = (PCI_BAR_IO(val)) ? SYS_RES_IOPORT : SYS_RES_MEMORY; 99 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE); 100 if (res == NULL) 101 continue; 102 proto_add_resource(sc, type, rid, res); 103 if (type == SYS_RES_IOPORT) 104 continue; 105 /* Skip over adjacent BAR for 64-bit memory BARs. */ 106 if ((val & PCIM_BAR_MEM_TYPE) == PCIM_BAR_MEM_64) 107 bar++; 108 } 109 110 rid = 0; 111 type = SYS_RES_IRQ; 112 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE | RF_SHAREABLE); 113 if (res != NULL) 114 proto_add_resource(sc, type, rid, res); 115 return (proto_attach(dev)); 116 } 117 118 DRIVER_MODULE(proto, pci, proto_pci_driver, NULL, NULL); 119