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/param.h> 27 #include <sys/systm.h> 28 #include <sys/bus.h> 29 #include <sys/conf.h> 30 #include <sys/kernel.h> 31 #include <sys/module.h> 32 #include <machine/bus.h> 33 #include <sys/rman.h> 34 #include <machine/resource.h> 35 #include <sys/sbuf.h> 36 37 #include <dev/pci/pcireg.h> 38 #include <dev/pci/pcivar.h> 39 40 #include <dev/proto/proto.h> 41 42 static int proto_pci_probe(device_t dev); 43 static int proto_pci_attach(device_t dev); 44 45 static device_method_t proto_pci_methods[] = { 46 /* Device interface */ 47 DEVMETHOD(device_probe, proto_pci_probe), 48 DEVMETHOD(device_attach, proto_pci_attach), 49 DEVMETHOD(device_detach, proto_detach), 50 DEVMETHOD_END 51 }; 52 53 static driver_t proto_pci_driver = { 54 proto_driver_name, 55 proto_pci_methods, 56 sizeof(struct proto_softc), 57 }; 58 59 static char proto_pci_prefix[] = "pci"; 60 static char **proto_pci_devnames; 61 62 static int 63 proto_pci_probe(device_t dev) 64 { 65 struct sbuf *sb; 66 67 if ((pci_read_config(dev, PCIR_HDRTYPE, 1) & PCIM_HDRTYPE) != 0) 68 return (ENXIO); 69 70 sb = sbuf_new_auto(); 71 sbuf_printf(sb, "%s%d:%d:%d:%d", proto_pci_prefix, pci_get_domain(dev), 72 pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)); 73 sbuf_finish(sb); 74 device_set_desc_copy(dev, sbuf_data(sb)); 75 sbuf_delete(sb); 76 return (proto_probe(dev, proto_pci_prefix, &proto_pci_devnames)); 77 } 78 79 static int 80 proto_pci_attach(device_t dev) 81 { 82 struct proto_softc *sc; 83 struct resource *res; 84 uint32_t val; 85 int bar, rid, type; 86 87 sc = device_get_softc(dev); 88 89 proto_add_resource(sc, PROTO_RES_PCICFG, 0, NULL); 90 proto_add_resource(sc, PROTO_RES_BUSDMA, 0, NULL); 91 92 for (bar = 0; bar < PCIR_MAX_BAR_0; bar++) { 93 rid = PCIR_BAR(bar); 94 val = pci_read_config(dev, rid, 4); 95 type = (PCI_BAR_IO(val)) ? SYS_RES_IOPORT : SYS_RES_MEMORY; 96 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE); 97 if (res == NULL) 98 continue; 99 proto_add_resource(sc, type, rid, res); 100 if (type == SYS_RES_IOPORT) 101 continue; 102 /* Skip over adjacent BAR for 64-bit memory BARs. */ 103 if ((val & PCIM_BAR_MEM_TYPE) == PCIM_BAR_MEM_64) 104 bar++; 105 } 106 107 rid = 0; 108 type = SYS_RES_IRQ; 109 res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE | RF_SHAREABLE); 110 if (res != NULL) 111 proto_add_resource(sc, type, rid, res); 112 return (proto_attach(dev)); 113 } 114 115 DRIVER_MODULE(proto, pci, proto_pci_driver, NULL, NULL); 116