src/drivers/wifi/generic/smbios.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <device/pci_ids.h>
   5 #include <smbios.h>
   6
   7 #include "wifi_private.h"
   8
   9 static int smbios_write_intel_wifi(struct device *dev, int *handle, unsigned long *current)
  10 {
  11         if (dev->vendor != PCI_VID_INTEL)
  12                 return 0;
  13
  14         struct smbios_type_intel_wifi {
  15                 struct smbios_header header;
  16                 u8 str;
  17                 u8 eos[2];
  18         } __packed;
  19
  20         struct smbios_type_intel_wifi *t = smbios_carve_table(*current, 0x85,
  21                                                               sizeof(*t), *handle);
  22
  23         /* Intel wifi driver expects this string to be in the table 0x85. */
  24         t->str = smbios_add_string(t->eos, "KHOIHGIUCCHHII");
  25
  26         const int len = smbios_full_table_len(&t->header, t->eos);
  27         *current += len;
  28         *handle += 1;
  29         return len;
  30 }
  31
  32 int smbios_write_wifi_pcie(struct device *dev, int *handle, unsigned long *current)
  33 {
  34         int len = smbios_write_intel_wifi(dev, handle, current);
  35         len += get_smbios_data(dev, handle, current);
  36         return len;
  37 }
  38
  39 int smbios_write_wifi_cnvi(struct device *dev, int *handle, unsigned long *current)
  40 {
  41         return smbios_write_wifi_pcie(dev->upstream->dev, handle, current);
  42 }