Current Path : /sys/dev/si/ |
FreeBSD hs32.drive.ne.jp 9.1-RELEASE FreeBSD 9.1-RELEASE #1: Wed Jan 14 12:18:08 JST 2015 root@hs32.drive.ne.jp:/sys/amd64/compile/hs32 amd64 |
Current File : //sys/dev/si/si_pci.c |
/*- * Device driver for Specialix range (SI/XIO) of serial line multiplexors. * * Copyright (C) 2000, Peter Wemm <peter@netplex.com.au> * * 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 * notices, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notices, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY ``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 AUTHORS BE LIABLE. */ #include <sys/cdefs.h> __FBSDID("$FreeBSD: release/9.1.0/sys/dev/si/si_pci.c 174136 2007-12-01 20:39:47Z peter $"); #include <sys/param.h> #include <sys/systm.h> #include <sys/kernel.h> #include <sys/module.h> #include <sys/bus.h> #include <machine/bus.h> #include <sys/rman.h> #include <machine/resource.h> #include <dev/si/sireg.h> #include <dev/si/sivar.h> #include <dev/pci/pcireg.h> #include <dev/pci/pcivar.h> static int si_pci_probe(device_t dev) { const char *desc = NULL; switch (pci_get_devid(dev)) { case 0x400011cb: desc = "Specialix SI/XIO PCI host card"; break; case 0x200011cb: if (pci_read_config(dev, SIJETSSIDREG, 4) == 0x020011cb) desc = "Specialix SX PCI host card"; break; } if (desc) { device_set_desc(dev, desc); return BUS_PROBE_DEFAULT; } return ENXIO; } static int si_pci_attach(device_t dev) { struct si_softc *sc; void *ih; int error; error = 0; ih = NULL; sc = device_get_softc(dev); switch (pci_get_devid(dev)) { case 0x400011cb: sc->sc_type = SIPCI; sc->sc_mem_rid = SIPCIBADR; break; case 0x200011cb: sc->sc_type = SIJETPCI; sc->sc_mem_rid = SIJETBADR; break; } sc->sc_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &sc->sc_mem_rid, RF_ACTIVE); if (!sc->sc_mem_res) { device_printf(dev, "couldn't map memory\n"); goto fail; } sc->sc_paddr = (caddr_t)rman_get_start(sc->sc_mem_res); sc->sc_maddr = rman_get_virtual(sc->sc_mem_res); sc->sc_irq_rid = 0; sc->sc_irq_res = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->sc_irq_rid, RF_ACTIVE | RF_SHAREABLE); if (!sc->sc_irq_res) { device_printf(dev, "couldn't map interrupt\n"); goto fail; } sc->sc_irq = rman_get_start(sc->sc_irq_res); error = bus_setup_intr(dev, sc->sc_irq_res, INTR_TYPE_TTY, NULL, si_intr, sc, &ih); if (error) { device_printf(dev, "could not activate interrupt\n"); goto fail; } if (pci_get_devid(dev) == 0x200011cb) { int rid; struct resource *plx_res; uint32_t *addr; uint32_t oldvalue; /* Perform a PLX control register fixup */ rid = PCIR_BAR(0); plx_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE); if (plx_res == NULL) { device_printf(dev, "couldn't map plx registers\n"); } else { addr = rman_get_virtual(plx_res); oldvalue = addr[0x50 / 4]; if (oldvalue != 0x18260000) { device_printf(dev, "PLX register 0x50: 0x%08x changed to 0x%08x\n", oldvalue, 0x18260000); addr[0x50 / 4] = 0x18260000; } bus_release_resource(dev, SYS_RES_MEMORY, rid, plx_res); } } error = siattach(dev); if (error) goto fail; return (0); /* success */ fail: if (error == 0) error = ENXIO; if (sc->sc_irq_res) { if (ih) bus_teardown_intr(dev, sc->sc_irq_res, ih); bus_release_resource(dev, SYS_RES_IRQ, sc->sc_irq_rid, sc->sc_irq_res); sc->sc_irq_res = 0; } if (sc->sc_mem_res) { bus_release_resource(dev, SYS_RES_MEMORY, sc->sc_mem_rid, sc->sc_mem_res); sc->sc_mem_res = 0; } return (error); } static device_method_t si_pci_methods[] = { /* Device interface */ DEVMETHOD(device_probe, si_pci_probe), DEVMETHOD(device_attach, si_pci_attach), { 0, 0 } }; static driver_t si_pci_driver = { "si", si_pci_methods, sizeof(struct si_softc), }; DRIVER_MODULE(si, pci, si_pci_driver, si_devclass, 0, 0);