linux/drivers/net/wireless/intel/iwlwifi/dvm/lib.c

// SPDX-License-Identifier: GPL-2.0-only
/******************************************************************************
 *
 * Copyright(c) 2008 - 2014, 2022 Intel Corporation. All rights reserved.
 *****************************************************************************/
#include <linux/etherdevice.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/sched.h>
#include <net/mac80211.h>

#include "iwl-io.h"
#include "iwl-agn-hw.h"
#include "iwl-trans.h"
#include "iwl-modparams.h"

#include "dev.h"
#include "agn.h"

int iwlagn_hw_valid_rtc_data_addr(u32 addr)
{ … }

int iwlagn_send_tx_power(struct iwl_priv *priv)
{ … }

void iwlagn_temperature(struct iwl_priv *priv)
{ … }

int iwlagn_hwrate_to_mac80211_idx(u32 rate_n_flags, enum nl80211_band band)
{ … }

int iwlagn_manage_ibss_station(struct iwl_priv *priv,
			       struct ieee80211_vif *vif, bool add)
{ … }

/*
 * iwlagn_txfifo_flush: send REPLY_TXFIFO_FLUSH command to uCode
 *
 * pre-requirements:
 *  1. acquire mutex before calling
 *  2. make sure rf is on and not in exit state
 */
int iwlagn_txfifo_flush(struct iwl_priv *priv, u32 scd_q_msk)
{ … }

void iwlagn_dev_txfifo_flush(struct iwl_priv *priv)
{ … }

/*
 * BT coex
 */
/* Notmal TDM */
static const __le32 iwlagn_def_3w_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = …;

/* Full concurrency */
static const __le32 iwlagn_concurrent_lookup[IWLAGN_BT_DECISION_LUT_SIZE] = …;

void iwlagn_send_advance_bt_config(struct iwl_priv *priv)
{ … }

void iwlagn_bt_adjust_rssi_monitor(struct iwl_priv *priv, bool rssi_ena)
{ … }

static bool iwlagn_bt_traffic_is_sco(struct iwl_bt_uart_msg *uart_msg)
{ … }

static void iwlagn_bt_traffic_change_work(struct work_struct *work)
{ … }

/*
 * If BT sco traffic, and RSSI monitor is enabled, move measurements to the
 * correct interface or disable it if this is the last interface to be
 * removed.
 */
void iwlagn_bt_coex_rssi_monitor(struct iwl_priv *priv)
{ … }

static void iwlagn_print_uartmsg(struct iwl_priv *priv,
				struct iwl_bt_uart_msg *uart_msg)
{ … }

static bool iwlagn_set_kill_msk(struct iwl_priv *priv,
				struct iwl_bt_uart_msg *uart_msg)
{ … }

/*
 * Upon RSSI changes, sends a bt config command with following changes
 *  1. enable/disable "reduced control frames tx power
 *  2. update the "kill)ack_mask" and "kill_cts_mask"
 *
 * If "reduced tx power" is enabled, uCode shall
 *  1. ACK/Back/CTS rate shall reduced to 6Mbps
 *  2. not use duplciate 20/40MHz mode
 */
static bool iwlagn_fill_txpower_mode(struct iwl_priv *priv,
				struct iwl_bt_uart_msg *uart_msg)
{ … }

static void iwlagn_bt_coex_profile_notif(struct iwl_priv *priv,
					 struct iwl_rx_cmd_buffer *rxb)
{ … }

void iwlagn_bt_rx_handler_setup(struct iwl_priv *priv)
{ … }

void iwlagn_bt_setup_deferred_work(struct iwl_priv *priv)
{ … }

void iwlagn_bt_cancel_deferred_work(struct iwl_priv *priv)
{ … }

static bool is_single_rx_stream(struct iwl_priv *priv)
{ … }

#define IWL_NUM_RX_CHAINS_MULTIPLE …
#define IWL_NUM_RX_CHAINS_SINGLE …
#define IWL_NUM_IDLE_CHAINS_DUAL …
#define IWL_NUM_IDLE_CHAINS_SINGLE …

/*
 * Determine how many receiver/antenna chains to use.
 *
 * More provides better reception via diversity.  Fewer saves power
 * at the expense of throughput, but only when not in powersave to
 * start with.
 *
 * MIMO (dual stream) requires at least 2, but works better with 3.
 * This does not determine *which* chains to use, just how many.
 */
static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
{ … }

/*
 * When we are in power saving mode, unless device support spatial
 * multiplexing power save, use the active count for rx chain count.
 */
static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
{ … }

/* up to 4 chains */
static u8 iwl_count_chain_bitmap(u32 chain_bitmap)
{ … }

/*
 * iwlagn_set_rxon_chain - Set up Rx chain usage in "staging" RXON image
 *
 * Selects how many and which Rx receivers/antennas/chains to use.
 * This should not be used for scan command ... it puts data in wrong place.
 */
void iwlagn_set_rxon_chain(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
{ … }

u8 iwl_toggle_tx_ant(struct iwl_priv *priv, u8 ant, u8 valid)
{ … }

#ifdef CONFIG_PM_SLEEP
static void iwlagn_convert_p1k(u16 *p1k, __le16 *out)
{ … }

struct wowlan_key_data { … };


static void iwlagn_wowlan_program_keys(struct ieee80211_hw *hw,
			       struct ieee80211_vif *vif,
			       struct ieee80211_sta *sta,
			       struct ieee80211_key_conf *key,
			       void *_data)
{ … }

int iwlagn_send_patterns(struct iwl_priv *priv,
			struct cfg80211_wowlan *wowlan)
{ … }

int iwlagn_suspend(struct iwl_priv *priv, struct cfg80211_wowlan *wowlan)
{ … }
#endif

int iwl_dvm_send_cmd(struct iwl_priv *priv, struct iwl_host_cmd *cmd)
{ … }

int iwl_dvm_send_cmd_pdu(struct iwl_priv *priv, u8 id,
			 u32 flags, u16 len, const void *data)
{ … }