| /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */ |
| /* |
| * Copyright(c) 2021 Intel Corporation |
| */ |
| |
| |
| #define IWL_UEFI_OEM_PNVM_NAME L"UefiCnvWlanOemSignedPnvm" |
| #define IWL_UEFI_REDUCED_POWER_NAME L"UefiCnvWlanReducedPower" |
| |
| /* |
| * TODO: we have these hardcoded values that the caller must pass, |
| * because reading from the UEFI is not working. To implement this |
| * properly, we have to change iwl_pnvm_get_from_uefi() to call |
| * efivar_entry_size() and return the value to the caller instead. |
| */ |
| #define IWL_HARDCODED_PNVM_SIZE 4096 |
| #define IWL_HARDCODED_REDUCE_POWER_SIZE 32768 |
| |
| struct pnvm_sku_package { |
| u8 rev; |
| u32 total_size; |
| u8 n_skus; |
| u32 reserved[2]; |
| u8 data[]; |
| } __packed; |
| |
| /* |
| * This is known to be broken on v4.19 and to work on v5.4. Until we |
| * figure out why this is the case and how to make it work, simply |
| * disable the feature in old kernels. |
| */ |
| #if defined(CONFIG_EFI) && LINUX_VERSION_IS_GEQ(5,4,0) |
| void *iwl_uefi_get_pnvm(struct iwl_trans *trans, size_t *len); |
| void *iwl_uefi_get_reduced_power(struct iwl_trans *trans, size_t *len); |
| #else /* CONFIG_EFI */ |
| static inline |
| void *iwl_uefi_get_pnvm(struct iwl_trans *trans, size_t *len) |
| { |
| return ERR_PTR(-EOPNOTSUPP); |
| } |
| |
| static inline |
| void *iwl_uefi_get_reduced_power(struct iwl_trans *trans, size_t *len) |
| { |
| return ERR_PTR(-EOPNOTSUPP); |
| } |
| #endif /* CONFIG_EFI */ |
