third_party/iwlwifi/iwl-nvm-parse.h

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#ifndef SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_NVM_PARSE_H_
#define SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_NVM_PARSE_H_

#include "third_party/iwlwifi/iwl-eeprom-parse.h"
#include "third_party/iwlwifi/platform/compiler.h"
#include "third_party/iwlwifi/platform/regulatory.h"

/**
 * enum iwl_nvm_sbands_flags - modification flags for the channel profiles
 *
 * @IWL_NVM_SBANDS_FLAGS_LAR: LAR is enabled
 * @IWL_NVM_SBANDS_FLAGS_NO_WIDE_IN_5GHZ: disallow 40, 80 and 160MHz on 5GHz
 */
enum iwl_nvm_sbands_flags {
	IWL_NVM_SBANDS_FLAGS_LAR = BIT(0),
	IWL_NVM_SBANDS_FLAGS_NO_WIDE_IN_5GHZ = BIT(1),
};

/**
 * iwl_parse_nvm_data - parse NVM data and return values
 *
 * This function parses all NVM values we need and then
 * returns a (newly allocated) struct containing all the
 * relevant values for driver use. The struct must be freed
 * later with iwl_free_nvm_data().
 */
struct iwl_nvm_data *
iwl_parse_nvm_data(struct iwl_trans *trans, const struct iwl_cfg *cfg,
		   const struct iwl_fw *fw, const __be16 *nvm_hw,
		   const __le16 *nvm_sw, const __le16 *nvm_calib,
		   const __le16 *regulatory, const __le16 *mac_override,
		   const __le16 *phy_sku, uint8_t tx_chains, uint8_t rx_chains,
		   bool lar_fw_supported);

/**
 * iwl_parse_mcc_info - parse MCC (mobile country code) info coming from FW
 *
 * This function parses the regulatory channel data received as a MCC_UPDATE_CMD command.
 * The parsing result is saved in the 'mvm'.
 */
void iwl_parse_nvm_mcc_info(struct mcc_info *mcc_info,
			    const struct iwl_cfg *cfg, int num_of_ch,
			    const __le32 *channels, uint16_t fw_mcc,
			    uint16_t geo_info);

/**
 * struct iwl_nvm_section - describes an NVM section in memory.
 *
 * This struct holds an NVM section read from the NIC using NVM_ACCESS_CMD,
 * and saved for later use by the driver. Not all NVM sections are saved
 * this way, only the needed ones.
 */
struct iwl_nvm_section {
	uint16_t length;
	const uint8_t *data;
};

/**
 * iwl_read_external_nvm - Reads external NVM from a file into nvm_sections
 */
int iwl_read_external_nvm(struct iwl_trans *trans, const char *nvm_file_name,
			  struct iwl_nvm_section *nvm_sections);
void iwl_nvm_fixups(uint32_t hw_id, unsigned int section, uint8_t *data,
		    unsigned int len);

/**
 * iwl_get_nvm - retrieve NVM data from firmware
 *
 * Allocates a new iwl_nvm_data structure, fills it with
 * NVM data, and returns it to caller.
 */
zx_status_t iwl_get_nvm(struct iwl_trans *trans, const struct iwl_fw *fw,
			struct iwl_nvm_data **ret_nvm);

//
// cfg_rates_to_80211 - convert iwl_cfg80211_rates to 802.11 rate.
//
// iwl_cfg80211_rates are defined in units of 100 kbit/s.
// 802.11 rates are defined in IEEE Std 802.11-2016, 9.4.2.3, which are in units of 500 kbit/s.
//
static inline unsigned cfg_rates_to_80211(uint16_t cfg)
{
	return cfg / 5;
}

// extern
extern uint16_t iwl_cfg80211_rates[];

//
// Get the index of the 'rate' in the iwl_cfg80211_rates[].
//
size_t iwl_get_rate_index(uint16_t rate);

#endif // SRC_CONNECTIVITY_WLAN_DRIVERS_THIRD_PARTY_INTEL_IWLWIFI_IWL_NVM_PARSE_H_