apps/include/cdi/pci.h

   1 /*
   2     meinOS - A unix-like x86 microkernel operating system
   3     Copyright (C) 2008  Janosch Gräf <janosch.graef@gmx.net>
   4
   5     This program is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU Lesser General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public License
  16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef _CDI_PCI_H_
  20 #define _CDI_PCI_H_
  21
  22 #include <stddef.h>
  23 #include <cdi/lists.h>
  24 #include <stdint.h>
  25
  26 struct cdi_pci_device {
  27   uint16_t bus;
  28   uint16_t dev;
  29   uint16_t function;
  30   uint16_t vendor_id;
  31   uint16_t device_id;
  32   uint16_t class_id;
  33   uint8_t irq;
  34   cdi_list_t resources;
  35 };
  36
  37 typedef enum {
  38   CDI_PCI_MEMORY,
  39   CDI_PCI_IOPORTS
  40 } cdi_res_t;
  41
  42 struct cdi_pci_resource {
  43   cdi_res_t type;
  44   uint32_t start;
  45   size_t length;
  46   unsigned int index;
  47   // If resource is memory: virtual address where memory is mapped
  48   void *address;
  49 };
  50
  51 void cdi_pci_get_all_devices(cdi_list_t list);
  52 void cdi_pci_device_destroy(struct cdi_pci_device* device);
  53 void cdi_pci_alloc_ioports(struct cdi_pci_device* device);
  54 void cdi_pci_free_ioports(struct cdi_pci_device* device);
  55 void cdi_pci_alloc_memory(struct cdi_pci_device* device);
  56 void cdi_pci_free_memory(struct cdi_pci_device* device);
  57
  58 #endif