drivers/pci/pci_compat.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Compatibility functions for pre-driver-model code
   4  *
   5  * Copyright (C) 2014 Google, Inc
   6  */
   7 #include <common.h>
   8 #include <dm.h>
   9 #include <errno.h>
  10 #include <malloc.h>
  11 #include <pci.h>
  12 #include <dm/device-internal.h>
  13 #include <dm/lists.h>
  14 #include "pci_internal.h"
  15
  16 #define PCI_HOSE_OP(rw, name, size, type)                               \
  17 int pci_hose_##rw##_config_##name(struct pci_controller *hose,          \
  18                                   pci_dev_t dev,                        \
  19                                   int offset, type value)               \
  20 {                                                                       \
  21         return pci_##rw##_config##size(dev, offset, value);             \
  22 }
  23
  24 PCI_HOSE_OP(read, byte, 8, u8 *)
  25 PCI_HOSE_OP(read, word, 16, u16 *)
  26 PCI_HOSE_OP(read, dword, 32, u32 *)
  27 PCI_HOSE_OP(write, byte, 8, u8)
  28 PCI_HOSE_OP(write, word, 16, u16)
  29 PCI_HOSE_OP(write, dword, 32, u32)
  30
  31 pci_dev_t pci_find_devices(struct pci_device_id *ids, int index)
  32 {
  33         struct udevice *dev;
  34
  35         if (pci_find_device_id(ids, index, &dev))
  36                 return -1;
  37         return dm_pci_get_bdf(dev);
  38 }
  39
  40 struct pci_controller *pci_bus_to_hose(int busnum)
  41 {
  42         struct udevice *bus;
  43         int ret;
  44
  45         ret = pci_get_bus(busnum, &bus);
  46         if (ret) {
  47                 debug("%s: Cannot get bus %d: ret=%d\n", __func__, busnum, ret);
  48                 return NULL;
  49         }
  50
  51         return dev_get_uclass_priv(pci_get_controller(bus));
  52 }