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/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
* Copyright(c) 2021 Intel Corporation
*/
#ifndef __iwl_fw_uefi__
#define __iwl_fw_uefi__
#define IWL_UEFI_OEM_PNVM_NAME L"UefiCnvWlanOemSignedPnvm"
#define IWL_UEFI_REDUCED_POWER_NAME L"UefiCnvWlanReducedPower"
#define IWL_UEFI_SGOM_NAME L"UefiCnvWlanSarGeoOffsetMapping"
/*
* 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
#define IWL_HARDCODED_SGOM_SIZE 339
struct pnvm_sku_package {
u8 rev;
u32 total_size;
u8 n_skus;
u32 reserved[2];
u8 data[];
} __packed;
struct uefi_cnv_wlan_sgom_data {
u8 revision;
u8 offset_map[IWL_HARDCODED_SGOM_SIZE - 1];
} __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.
*/
#ifdef CONFIG_EFI
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 */
#if defined(CONFIG_EFI) && defined(CONFIG_ACPI)
void iwl_uefi_get_sgom_table(struct iwl_trans *trans, struct iwl_fw_runtime *fwrt);
#else
static inline
void iwl_uefi_get_sgom_table(struct iwl_trans *trans, struct iwl_fw_runtime *fwrt)
{
}
#endif
#endif /* __iwl_fw_uefi__ */
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