/*
 * Copyright 2006, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *      Jérôme Duval
 */

#include <stdio.h>

static void
get_class_info(uint8 pci_class_base_id, uint8 pci_class_sub_id, uint8 pci_class_api_id, char *classInfo, size_t size)
{
        if (pci_class_base_id == 0x80)
                snprintf(classInfo, size, " (Other)");
        else {
                PCI_CLASSCODETABLE *foundItem = NULL;
                int i;
                for (i = 0; i < (int)PCI_CLASSCODETABLE_LEN; i++) {
                        if ((pci_class_base_id == PciClassCodeTable[i].BaseClass) 
                                && (pci_class_sub_id == PciClassCodeTable[i].SubClass)) {
                                foundItem = &PciClassCodeTable[i];
                                if (pci_class_api_id == PciClassCodeTable[i].ProgIf)
                                        break;
                        }
                }
                if (foundItem) {
                        if (pci_class_sub_id != 0x80)
                                snprintf(classInfo, size, "%s (%s%s%s)", foundItem->BaseDesc, foundItem->SubDesc, 
                                        (foundItem->ProgDesc && strcmp("", foundItem->ProgDesc)) ? ", " : "", foundItem->ProgDesc);
                        else
                                snprintf(classInfo, size, "%s", foundItem->BaseDesc);
                } else
                                snprintf(classInfo, size, "%s (%u:%u:%u)", "(Unknown)", 
                                        pci_class_base_id, pci_class_sub_id, pci_class_api_id);
        }
}

static void
get_vendor_info(uint16 vendorID, const char **venShort, const char **venFull)
{
        int i;
        for (i = 0; i < (int)PCI_VENTABLE_LEN; i++) {
                if (PciVenTable[i].VenId == vendorID) {
                        if (PciVenTable[i].VenShort && PciVenTable[i].VenFull
                                && 0 == strcmp(PciVenTable[i].VenShort, PciVenTable[i].VenFull)) {
                                *venShort = PciVenTable[i].VenShort[0] ? PciVenTable[i].VenShort : NULL;
                                *venFull = NULL;
                        } else {
                                *venShort = PciVenTable[i].VenShort && PciVenTable[i].VenShort[0] ? PciVenTable[i].VenShort : NULL;
                                *venFull = PciVenTable[i].VenFull && PciVenTable[i].VenFull[0] ? PciVenTable[i].VenFull : NULL;
                        }
                        return;
                }
        }
        *venShort = NULL;
        *venFull = NULL;
}


static void
get_device_info(uint16 vendorID, uint16 deviceID, 
        uint16 subvendorID, uint16 subsystemID, const char **devShort, const char **devFull)
{
        int i;
        *devShort = NULL;
        *devFull = NULL;
        
        // search for the device
        for (i = 0; i < (int)PCI_DEVTABLE_LEN; i++) {
                if (PciDevTable[i].VenId == vendorID && PciDevTable[i].DevId == deviceID ) {
                        *devShort = PciDevTable[i].ChipDesc && PciDevTable[i].ChipDesc[0] ? PciDevTable[i].ChipDesc : NULL;
                        if (PciDevTable[i].SubVenId == 0 || PciDevTable[i].SubDevId == 0)
                                i++;
                        break;
                }
        }

        // search for the subsystem eventually
        for (; i < (int)PCI_DEVTABLE_LEN; i++) {
                if (PciDevTable[i].VenId != vendorID || PciDevTable[i].DevId != deviceID)
                        break;
                if (PciDevTable[i].SubVenId == subvendorID && PciDevTable[i].SubDevId == subsystemID) {
                        *devFull = PciDevTable[i].ChipDesc && PciDevTable[i].ChipDesc[0] ? PciDevTable[i].ChipDesc : NULL;
                        break;
                }
        }
}