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/*
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 * HelenOS PCI driver.
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 *
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 * Copyright (C) 1997-2003 Martin Mares
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 * Copyright (C) 2006 Jakub Jermar
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 *
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 * (Based on libpci example.c written by Martin Mares.)
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 *
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 * Can be freely distributed and used under the terms of the GNU GPL.
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 */
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#include <stdio.h>
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#include <ddi.h>
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#include <task.h>
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#include <stdlib.h>
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#include <ipc/ipc.h>
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#include <ipc/services.h>
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#include <errno.h>
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#include "libpci/pci.h"
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#define PCI_CONF1   0xcf8
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#define PCI_CONF1_SIZE  8
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#define NAME        "PCI"
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static struct pci_access *pacc;
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int main(int argc, char *argv[])
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{
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    struct pci_dev *dev;
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    unsigned int c;
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    char buf[80];
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    ipcarg_t ns_in_phone_hash;
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    printf("%s: HelenOS PCI driver\n", NAME);
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    /*
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     * Gain control over PCI configuration ports.
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     */
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    iospace_enable(task_get_id(), (void *) PCI_CONF1, PCI_CONF1_SIZE);
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    pacc = pci_alloc();           /* Get the pci_access structure */
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    pci_init(pacc);               /* Initialize the PCI library */
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    pci_scan_bus(pacc);           /* We want to get the list of devices */
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    for(dev=pacc->devices; dev; dev=dev->next) {   /* Iterate over all devices */
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        pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_IRQ);
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        c = pci_read_word(dev, PCI_CLASS_DEVICE); /* Read config register directly */
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        printf("%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d base0=%lx\n",
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            dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
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            c, dev->irq, dev->base_addr[0]);
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        printf("\t%s\n", pci_lookup_name(pacc, buf, sizeof(buf), PCI_LOOKUP_VENDOR | PCI_LOOKUP_DEVICE,
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            dev->vendor_id, dev->device_id));
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    }
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    printf("%s: registering at naming service.\n", NAME);
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    if (ipc_connect_to_me(PHONE_NS, SERVICE_PCI, 0, &ns_in_phone_hash) != 0) {
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        printf("Failed to register %s at naming service.\n", NAME);
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        return -1;
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    }
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    printf("%s: accepting connections\n", NAME);
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    while (1) {    
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        ipc_call_t call;
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        ipc_callid_t callid;
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        int retval;
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        callid = ipc_wait_for_call(&call);
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        switch(IPC_GET_METHOD(call)) {
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        case IPC_M_CONNECT_ME_TO:
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            IPC_SET_RETVAL(call, 0);
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            break;
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        }
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        if (! (callid & IPC_CALLID_NOTIFICATION)) {
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            ipc_answer(callid, &call);
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        }
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        printf("%s: received call from %lX\n", NAME, call.in_phone_hash);
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    }
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    pci_cleanup(pacc);
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    return 0;
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}