Subversion Repositories HelenOS-historic

/*

 * HelenOS PCI driver.

 *

 * Copyright (C) 1997-2003 Martin Mares

 * Copyright (C) 2006 Jakub Jermar

 *

 * (Based on libpci example.c written by Martin Mares.)

 *

 * Can be freely distributed and used under the terms of the GNU GPL.

 */

#include <stdio.h>

#include <ddi.h>

#include <task.h>

#include <stdlib.h>

#include <ipc.h>

#include <services.h>

#include <errno.h>

#include "libpci/pci.h"

#define PCI_CONF1   0xcf8

#define PCI_CONF1_SIZE  8

#define NAME        "PCI"

static struct pci_access *pacc;

int main(int argc, char *argv[])

{

    struct pci_dev *dev;

    unsigned int c;

    char buf[80];

    ipcarg_t ns_in_phone_hash;

    printf("%s: HelenOS PCI driver\n", NAME);

    /*

     * Gain control over PCI configuration ports.

     */

    iospace_enable(task_get_id(), (void *) PCI_CONF1, PCI_CONF1_SIZE);

    pacc = pci_alloc();           /* Get the pci_access structure */

    pci_init(pacc);               /* Initialize the PCI library */

    pci_scan_bus(pacc);           /* We want to get the list of devices */

    for(dev=pacc->devices; dev; dev=dev->next) {   /* Iterate over all devices */

        pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_IRQ);

        c = pci_read_word(dev, PCI_CLASS_DEVICE); /* Read config register directly */

        printf("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d base0=%lx\n",

            dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,

            c, dev->irq, dev->base_addr[0]);

        printf("\t%s\n", pci_lookup_name(pacc, buf, sizeof(buf), PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,

            dev->vendor_id, dev->device_id));

    }

    printf("%s: registering at naming service.\n", NAME);

    if (ipc_connect_to_me(PHONE_NS, SERVICE_PCI, 0, &ns_in_phone_hash) != 0) {

        printf("Failed to register %s at naming service.\n", NAME);

        return -1;

    }

    printf("%s: accepting connections\n", NAME);

    while (1) {    

        ipc_call_t call;

        ipc_callid_t callid;

        int retval;

        callid = ipc_wait_for_call(&call, 0);

        switch(IPC_GET_METHOD(call)) {

        case IPC_M_CONNECT_ME_TO:

            IPC_SET_RETVAL(call, 0);

            break;

        }

        if (! (callid & IPC_CALLID_NOTIFICATION)) {

            ipc_answer(callid, &call);

        }

        printf("%s: received call from %lX\n", NAME, call.in_phone_hash);

    }

    pci_cleanup(pacc);

    return 0;

}