drivers/staging/rtl8192u/ieee80211/dot11d.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __INC_DOT11D_H
#define __INC_DOT11D_H

#include "ieee80211.h"

struct chnl_txpower_triple {
	u8  first_channel;
	u8  num_channels;
	u8  max_tx_pwr_dbm;
};

enum dot11d_state {
	DOT11D_STATE_NONE = 0,
	DOT11D_STATE_LEARNED,
	DOT11D_STATE_DONE,
};

struct rt_dot11d_info {
	u16 country_ie_len; /* > 0 if country_ie_buf[] contains valid country information element. */

	/*  country_ie_src_addr u16 aligned for comparison and copy */
	u8  country_ie_src_addr[ETH_ALEN]; /* Source AP of the country IE. */
	u8  country_ie_buf[MAX_IE_LEN];
	u8  country_ie_watchdog;

	u8  channel_map[MAX_CHANNEL_NUMBER + 1];  /* !Value 0: Invalid, 1: Valid (active scan), 2: Valid (passive scan) */
	u8  max_tx_pwr_dbm_list[MAX_CHANNEL_NUMBER + 1];

	enum dot11d_state state;
	u8  dot11d_enabled; /* dot11MultiDomainCapabilityEnabled */
};

#define GET_DOT11D_INFO(ieee_dev) ((struct rt_dot11d_info *)((ieee_dev)->dot11d_info))

#define IS_DOT11D_ENABLE(ieee_dev) (GET_DOT11D_INFO(ieee_dev)->dot11d_enabled)
#define IS_COUNTRY_IE_VALID(ieee_dev) (GET_DOT11D_INFO(ieee_dev)->country_ie_len > 0)

#define IS_EQUAL_CIE_SRC(ieee_dev, addr) ether_addr_equal(GET_DOT11D_INFO(ieee_dev)->country_ie_src_addr, addr)
#define UPDATE_CIE_SRC(ieee_dev, addr) ether_addr_copy(GET_DOT11D_INFO(ieee_dev)->country_ie_src_addr, addr)

#define GET_CIE_WATCHDOG(ieee_dev) (GET_DOT11D_INFO(ieee_dev)->country_ie_watchdog)
#define RESET_CIE_WATCHDOG(ieee_dev) (GET_CIE_WATCHDOG(ieee_dev) = 0)
#define UPDATE_CIE_WATCHDOG(ieee_dev) (++GET_CIE_WATCHDOG(ieee_dev))

void rtl8192u_dot11d_init(struct ieee80211_device *dev);
void dot11d_reset(struct ieee80211_device *dev);
void dot11d_update_country_ie(struct ieee80211_device *dev,
			      u8 *addr,
			      u16 coutry_ie_len,
			      u8 *coutry_ie);
u8 dot11d_get_max_tx_pwr_in_dbm(struct ieee80211_device *dev, u8 channel);
void dot11d_scan_complete(struct ieee80211_device *dev);
int is_legal_channel(struct ieee80211_device *dev, u8 channel);
int to_legal_channel(struct ieee80211_device *dev, u8 channel);

#endif /* #ifndef __INC_DOT11D_H */