headers/private/shared/pci-utils.h

   1 /*
   2  * Copyright 2006, Haiku, Inc. All Rights Reserved.
   3  * Distributed under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *      Jérôme Duval
   7  */
   8
   9 #include <stdio.h>
  10
  11 static void
  12 get_class_info(uint8 pci_class_base_id, uint8 pci_class_sub_id, uint8 pci_class_api_id, char *classInfo, size_t size)
  13 {
  14         if (pci_class_base_id == 0x80)
  15                 snprintf(classInfo, size, " (Other)");
  16         else {
  17                 PCI_CLASSCODETABLE *foundItem = NULL;
  18                 int i;
  19                 for (i = 0; i < (int)PCI_CLASSCODETABLE_LEN; i++) {
  20                         if ((pci_class_base_id == PciClassCodeTable[i].BaseClass)
  21                                 && (pci_class_sub_id == PciClassCodeTable[i].SubClass)) {
  22                                 foundItem = &PciClassCodeTable[i];
  23                                 if (pci_class_api_id == PciClassCodeTable[i].ProgIf)
  24                                         break;
  25                         }
  26                 }
  27                 if (foundItem) {
  28                         if (pci_class_sub_id != 0x80)
  29                                 snprintf(classInfo, size, "%s (%s%s%s)", foundItem->BaseDesc, foundItem->SubDesc,
  30                                         (foundItem->ProgDesc && strcmp("", foundItem->ProgDesc)) ? ", " : "", foundItem->ProgDesc);
  31                         else
  32                                 snprintf(classInfo, size, "%s", foundItem->BaseDesc);
  33                 } else
  34                                 snprintf(classInfo, size, "%s (%u:%u:%u)", "(Unknown)",
  35                                         pci_class_base_id, pci_class_sub_id, pci_class_api_id);
  36         }
  37 }
  38
  39 static void
  40 get_vendor_info(uint16 vendorID, const char **venShort, const char **venFull)
  41 {
  42         int i;
  43         for (i = 0; i < (int)PCI_VENTABLE_LEN; i++) {
  44                 if (PciVenTable[i].VenId == vendorID) {
  45                         if (PciVenTable[i].VenShort && PciVenTable[i].VenFull
  46                                 && 0 == strcmp(PciVenTable[i].VenShort, PciVenTable[i].VenFull)) {
  47                                 *venShort = PciVenTable[i].VenShort[0] ? PciVenTable[i].VenShort : NULL;
  48                                 *venFull = NULL;
  49                         } else {
  50                                 *venShort = PciVenTable[i].VenShort && PciVenTable[i].VenShort[0] ? PciVenTable[i].VenShort : NULL;
  51                                 *venFull = PciVenTable[i].VenFull && PciVenTable[i].VenFull[0] ? PciVenTable[i].VenFull : NULL;
  52                         }
  53                         return;
  54                 }
  55         }
  56         *venShort = NULL;
  57         *venFull = NULL;
  58 }
  59
  60
  61 static void
  62 get_device_info(uint16 vendorID, uint16 deviceID,
  63         uint16 subvendorID, uint16 subsystemID, const char **devShort, const char **devFull)
  64 {
  65         int i;
  66         *devShort = NULL;
  67         *devFull = NULL;
  68
  69         // search for the device
  70         for (i = 0; i < (int)PCI_DEVTABLE_LEN; i++) {
  71                 if (PciDevTable[i].VenId == vendorID && PciDevTable[i].DevId == deviceID ) {
  72                         *devShort = PciDevTable[i].ChipDesc && PciDevTable[i].ChipDesc[0] ? PciDevTable[i].ChipDesc : NULL;
  73                         if (PciDevTable[i].SubVenId == 0 || PciDevTable[i].SubDevId == 0)
  74                                 i++;
  75                         break;
  76                 }
  77         }
  78
  79         // search for the subsystem eventually
  80         for (; i < (int)PCI_DEVTABLE_LEN; i++) {
  81                 if (PciDevTable[i].VenId != vendorID || PciDevTable[i].DevId != deviceID)
  82                         break;
  83                 if (PciDevTable[i].SubVenId == subvendorID && PciDevTable[i].SubDevId == subsystemID) {
  84                         *devFull = PciDevTable[i].ChipDesc && PciDevTable[i].ChipDesc[0] ? PciDevTable[i].ChipDesc : NULL;
  85                         break;
  86                 }
  87         }
  88 }