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Viewing changes to uspace/srv/pci/pci.c

  • Committer: Martin Decky
  • Date: 2009-08-04 11:19:19 UTC
  • Revision ID: martin@uranus.dsrg.hide.ms.mff.cuni.cz-20090804111919-evyclddlr3v5lhmp
Initial import

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uspace/srv/pci/pci.c
 
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/*
 
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 * HelenOS PCI driver.
 
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 *
 
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 * (Based on public domain libpci example.c written by Martin Mares.)
 
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 * Copyright (c) 2006 Jakub Jermar
 
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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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/**
 
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 * @addtogroup pci
 
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 * @{
 
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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, 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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                ipcarg_t retval = ENOTSUP;
 
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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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                        retval = EOK;
 
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                        break;
 
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                }
 
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                ipc_answer_0(callid, retval);
 
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                printf("%s: received call from %lX\n", NAME,
 
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                    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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}
 
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/**
 
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 * @}
 
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 */