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/* ----------------------------------------------------------------------- *
 *
 *   Copyright 2006 Erwan Velu - All Rights Reserved
 *
 *   Permission is hereby granted, free of charge, to any person
 *   obtaining a copy of this software and associated documentation
 *   files (the "Software"), to deal in the Software without
 *   restriction, including without limitation the rights to use,
 *   copy, modify, merge, publish, distribute, sublicense, and/or
 *   sell copies of the Software, and to permit persons to whom
 *   the Software is furnished to do so, subject to the following
 *   conditions:
 *
 *   The above copyright notice and this permission notice shall
 *   be included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *   OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *   NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *   HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *   WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 *
 * -----------------------------------------------------------------------
*/

/*
 * pcitest.c
 *
 */

#include <inttypes.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <console.h>
#include <com32.h>
#include <sys/pci.h>
#include <stdbool.h>

#ifdef DEBUG
# define dprintf printf
#else
# define dprintf(...) ((void)0)
#endif

char display_line;
#define moreprintf(...)				\
  do {						\
    display_line++;				\
    if (display_line == 24) {			\
      char tempbuf[10];				\
      display_line=0;				\
      printf("Press Enter to continue\n");	\
      fgets(tempbuf, sizeof tempbuf, stdin);	\
    }						\
    printf ( __VA_ARGS__);			\
  } while (0);

void display_pci_devices(struct pci_device_list *pci_device_list) {
  int pci_dev;
  for (pci_dev=0; pci_dev < pci_device_list->count; pci_dev++) {
    struct pci_device *pci_device = &pci_device_list->pci_device[pci_dev];
    printf("PCI: Vendor=%04x(%s) Product=%04x(%s) "
	   "Sub_vendor=%04x Sub_Product=%04x Release=%02x\n",
	   pci_device->vendor, pci_device->pci_dev_info->vendor_name,
	   pci_device->product, pci_device->pci_dev_info->product_name,
	   pci_device->sub_vendor, pci_device->sub_product,
	   pci_device->revision);
  }
  printf("PCI: %d devices found\n",pci_device_list->count);
}

void display_pci_bus(struct pci_bus_list *pci_bus_list, bool display_pci_devices) {
  int bus;
  for (bus=0; bus<pci_bus_list->count;bus++) {
    struct pci_bus pci_bus = pci_bus_list->pci_bus[bus];
    printf("\nPCI BUS No %d:\n", pci_bus.id);
    if (display_pci_devices) {
      int pci_dev;
      for (pci_dev=0; pci_dev < pci_bus.pci_device_count; pci_dev++) {
	struct pci_device pci_device=*(pci_bus.pci_device[pci_dev]);
	printf("%s :%04x:%04x[%04x:%04x]) %s:%s\n",
		pci_device.pci_dev_info->linux_kernel_module,
	       pci_device.vendor, pci_device.product,
	        pci_device.sub_vendor, pci_device.sub_product,
	       pci_device.pci_dev_info->vendor_name,
	       pci_device.pci_dev_info->product_name);
      }
    }
  }
  printf("PCI: %d bus%s found\n",
	 pci_bus_list->count,
	 pci_bus_list->count == 1 ? "es" : "");
}

int main(int argc, char *argv[])
{
  struct pci_device_list pci_device_list;
  struct pci_bus_list pci_bus_list;
  openconsole(&dev_null_r, &dev_stdcon_w);

  /* Scanning to detect pci buses and devices */
  pci_scan(&pci_bus_list,&pci_device_list);

  /* Assigning product & vendor name for each device*/
  get_name_from_pci_ids(&pci_device_list);

  /* Detecting which kernel module should match each device */
  get_module_name_from_pci_ids(&pci_device_list);

  /* display the pci devices we found */
  display_pci_bus(&pci_bus_list,true);
  return 1;
}