diff options
Diffstat (limited to 'sys/dev/proto/proto_bus_pci.c')
| -rw-r--r-- | sys/dev/proto/proto_bus_pci.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/sys/dev/proto/proto_bus_pci.c b/sys/dev/proto/proto_bus_pci.c new file mode 100644 index 0000000..012469a --- /dev/null +++ b/sys/dev/proto/proto_bus_pci.c @@ -0,0 +1,112 @@ +/*- + * Copyright (c) 2014 Marcel Moolenaar + * 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 ``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 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/bus.h> +#include <sys/conf.h> +#include <sys/kernel.h> +#include <sys/module.h> +#include <machine/bus.h> +#include <sys/rman.h> +#include <machine/resource.h> +#include <sys/sbuf.h> + +#include <dev/pci/pcireg.h> +#include <dev/pci/pcivar.h> + +#include <dev/proto/proto.h> + +static int proto_pci_probe(device_t dev); +static int proto_pci_attach(device_t dev); + +static device_method_t proto_pci_methods[] = { + /* Device interface */ + DEVMETHOD(device_probe, proto_pci_probe), + DEVMETHOD(device_attach, proto_pci_attach), + DEVMETHOD(device_detach, proto_detach), + DEVMETHOD_END +}; + +static driver_t proto_pci_driver = { + proto_driver_name, + proto_pci_methods, + sizeof(struct proto_softc), +}; + +static int +proto_pci_probe(device_t dev) +{ + struct sbuf *sb; + + /* For now we only attach to function 0 devices. */ + if (pci_get_function(dev) != 0) + return (ENXIO); + + sb = sbuf_new_auto(); + sbuf_printf(sb, "pci%d:%d:%d:%d", pci_get_domain(dev), + pci_get_bus(dev), pci_get_slot(dev), pci_get_function(dev)); + sbuf_finish(sb); + device_set_desc_copy(dev, sbuf_data(sb)); + sbuf_delete(sb); + return (BUS_PROBE_HOOVER); +} + +static int +proto_pci_attach(device_t dev) +{ + struct proto_softc *sc; + struct resource *res; + int bar, rid, type; + + sc = device_get_softc(dev); + + proto_add_resource(sc, PROTO_RES_PCICFG, 0, NULL); + + for (bar = 0; bar < PCIR_MAX_BAR_0; bar++) { + rid = PCIR_BAR(bar); + type = SYS_RES_MEMORY; + res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE); + if (res == NULL) { + type = SYS_RES_IOPORT; + res = bus_alloc_resource_any(dev, type, &rid, + RF_ACTIVE); + } + if (res != NULL) + proto_add_resource(sc, type, rid, res); + } + + rid = 0; + type = SYS_RES_IRQ; + res = bus_alloc_resource_any(dev, type, &rid, RF_ACTIVE | RF_SHAREABLE); + if (res != NULL) + proto_add_resource(sc, type, rid, res); + return (proto_attach(dev)); +} + +DRIVER_MODULE(proto, pci, proto_pci_driver, proto_devclass, NULL, NULL); |
