There is no reason to store it multiple times. MFC after: 1 week Reviewed by: manu Differential Revision: https://reviews.freebsd.org/D41244
149 lines
4.9 KiB
C
149 lines
4.9 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2021 Val Packett <val@packett.cool>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "opt_acpi.h"
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#include "opt_pci.h"
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#include <sys/cdefs.h>
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/proc.h>
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#include <sys/rman.h>
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#include <dev/intel/spi.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include "spibus_if.h"
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static struct intelspi_pci_device {
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uint32_t devid;
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enum intelspi_vers vers;
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const char *desc;
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} intelspi_pci_devices[] = {
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{ 0x9c658086, SPI_LYNXPOINT, "Intel Lynx Point-LP SPI Controller-0" },
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{ 0x9c668086, SPI_LYNXPOINT, "Intel Lynx Point-LP SPI Controller-1" },
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{ 0x9ce58086, SPI_LYNXPOINT, "Intel Wildcat Point SPI Controller-0" },
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{ 0x9ce68086, SPI_LYNXPOINT, "Intel Wildcat Point SPI Controller-1" },
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{ 0x9d298086, SPI_SUNRISEPOINT, "Intel Sunrise Point-LP SPI Controller-0" },
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{ 0x9d2a8086, SPI_SUNRISEPOINT, "Intel Sunrise Point-LP SPI Controller-1" },
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{ 0xa1298086, SPI_SUNRISEPOINT, "Intel Sunrise Point-H SPI Controller-0" },
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{ 0xa12a8086, SPI_SUNRISEPOINT, "Intel Sunrise Point-H SPI Controller-1" },
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{ 0xa2a98086, SPI_SUNRISEPOINT, "Intel Kaby Lake-H SPI Controller-0" },
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{ 0xa2aa8086, SPI_SUNRISEPOINT, "Intel Kaby Lake-H SPI Controller-1" },
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{ 0xa3a98086, SPI_SUNRISEPOINT, "Intel Comet Lake-V SPI Controller-0" },
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{ 0xa3aa8086, SPI_SUNRISEPOINT, "Intel Comet Lake-V SPI Controller-1" },
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};
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static int
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intelspi_pci_probe(device_t dev)
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{
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struct intelspi_softc *sc = device_get_softc(dev);
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uint32_t devid = pci_get_devid(dev);
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int i;
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for (i = 0; i < nitems(intelspi_pci_devices); i++) {
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if (intelspi_pci_devices[i].devid == devid) {
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sc->sc_vers = intelspi_pci_devices[i].vers;
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/* The PCI device is listed in ACPI too.
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* Not that we use the handle for anything... */
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sc->sc_handle = acpi_get_handle(dev);
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device_set_desc(dev, intelspi_pci_devices[i].desc);
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return (BUS_PROBE_DEFAULT);
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}
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}
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return (ENXIO);
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}
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static int
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intelspi_pci_attach(device_t dev)
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{
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struct intelspi_softc *sc = device_get_softc(dev);
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sc->sc_mem_rid = PCIR_BAR(0);
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sc->sc_irq_rid = 0;
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if (pci_alloc_msi(dev, &sc->sc_irq_rid)) {
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device_printf(dev, "Using MSI\n");
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}
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return (intelspi_attach(dev));
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}
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static int
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intelspi_pci_detach(device_t dev)
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{
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struct intelspi_softc *sc = device_get_softc(dev);
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int err;
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err = intelspi_detach(dev);
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if (err)
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return (err);
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if (sc->sc_irq_rid != 0)
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pci_release_msi(dev);
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return (0);
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}
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static device_method_t intelspi_pci_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, intelspi_pci_probe),
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DEVMETHOD(device_attach, intelspi_pci_attach),
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DEVMETHOD(device_detach, intelspi_pci_detach),
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DEVMETHOD(device_suspend, intelspi_suspend),
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DEVMETHOD(device_resume, intelspi_resume),
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/* Bus interface */
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DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
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DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
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DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource),
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DEVMETHOD(bus_release_resource, bus_generic_release_resource),
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DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
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DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
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DEVMETHOD(bus_adjust_resource, bus_generic_adjust_resource),
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/* SPI interface */
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DEVMETHOD(spibus_transfer, intelspi_transfer),
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DEVMETHOD_END
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};
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static driver_t intelspi_pci_driver = {
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"spi",
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intelspi_pci_methods,
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sizeof(struct intelspi_softc),
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};
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DRIVER_MODULE(intelspi, pci, intelspi_pci_driver, 0, 0);
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MODULE_DEPEND(intelspi, pci, 1, 1, 1);
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MODULE_DEPEND(intelspi, spibus, 1, 1, 1);
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MODULE_PNP_INFO("W32:vendor/device", pci, intelspi, intelspi_pci_devices,
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nitems(intelspi_pci_devices));
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