FreeBSD/Linux Kernel Cross Reference
sys/dev/uart/uart_bus_pci.c

     /*-
      * Copyright (c) 2001 M. Warner Losh.  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 <dev/pci/pcivar.h>
    
    #include <dev/uart/uart.h>
    #include <dev/uart/uart_bus.h>
    
    static int uart_pci_probe(device_t dev);
    
    static device_method_t uart_pci_methods[] = {
            /* Device interface */
            DEVMETHOD(device_probe,         uart_pci_probe),
            DEVMETHOD(device_attach,        uart_bus_attach),
            DEVMETHOD(device_detach,        uart_bus_detach),
            { 0, 0 }
    };
    
    static driver_t uart_pci_driver = {
            uart_driver_name,
            uart_pci_methods,
            sizeof(struct uart_softc),
    };
    
    struct pci_id {
            uint32_t        type;
            const char      *desc;
            int             rid;
    };
    
    static struct pci_id pci_ns8250_ids[] = {
            { 0x100812b9, "3COM PCI FaxModem", 0x10 },
            { 0x2000131f, "CyberSerial (1-port) 16550", 0x10 },
            { 0x01101407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
            { 0x01111407, "Koutech IOFLEX-2S PCI Dual Port Serial", 0x10 },
            { 0x048011c1, "Lucent kermit based PCI Modem", 0x14 },
            { 0x95211415, "Oxford Semiconductor PCI Dual Port Serial", 0x10 },
            { 0x7101135e, "SeaLevel Ultra 530.PCI Single Port Serial", 0x18 },
            { 0x0000151f, "SmartLink 5634PCV SurfRider", 0x10 },
            { 0x0103115d, "Xircom Cardbus modem", 0x10 },
            { 0x98459710, "Netmos Nm9845 PCI Bridge with Dual UART", 0x10 },
            { 0x01c0135c, "Quatech SSCLP-200/300", 0x18 
                    /* 
                     * NB: You must mount the "SPAD" jumper to correctly detect
                     * the FIFO on the UART.  Set the options on the jumpers,
                     * we do not support the extra registers on the Quatech.
                     */
            },
            { 0x00000000, NULL, 0 }
    };
    
    static struct pci_id *
    uart_pci_match(uint32_t type, struct pci_id *id)
    {
    
            while (id->type && id->type != type)
                    id++;
            return ((id->type) ? id : NULL);
    }
    
    static int
    uart_pci_probe(device_t dev)
    {
            struct uart_softc *sc;
            struct pci_id *id;
   
           sc = device_get_softc(dev);
   
           id = uart_pci_match(pci_get_devid(dev), pci_ns8250_ids);
           if (id != NULL) {
                   sc->sc_class = &uart_ns8250_class;
                   goto match;
           }
           /* Add checks for non-ns8250 IDs here. */
           return (ENXIO);
   
    match:
           if (id->desc)
                   device_set_desc(dev, id->desc);
           return (uart_bus_probe(dev, 0, 0, id->rid, 0));
   }
   
   DRIVER_MODULE(uart, pci, uart_pci_driver, uart_devclass, 0, 0);
   DRIVER_MODULE(uart, cardbus, uart_pci_driver, uart_devclass, 0, 0);

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