path: root/drivers/net/wireless/intel/iwlwifi/fw/api/power.h

/* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
/*
 * Copyright (C) 2012-2014, 2018-2024 Intel Corporation
 * Copyright (C) 2013-2014 Intel Mobile Communications GmbH
 * Copyright (C) 2015-2017 Intel Deutschland GmbH
 */
#ifndef __iwl_fw_api_power_h__
#define __iwl_fw_api_power_h__

/* Power Management Commands, Responses, Notifications */

/**
 * enum iwl_ltr_config_flags - masks for LTR config command flags
 * @LTR_CFG_FLAG_FEATURE_ENABLE: Feature operational status
 * @LTR_CFG_FLAG_HW_DIS_ON_SHADOW_REG_ACCESS: allow LTR change on shadow
 *	memory access
 * @LTR_CFG_FLAG_HW_EN_SHRT_WR_THROUGH: allow LTR msg send on ANY LTR
 *	reg change
 * @LTR_CFG_FLAG_HW_DIS_ON_D0_2_D3: allow LTR msg send on transition from
 *	D0 to D3
 * @LTR_CFG_FLAG_SW_SET_SHORT: fixed static short LTR register
 * @LTR_CFG_FLAG_SW_SET_LONG: fixed static short LONG register
 * @LTR_CFG_FLAG_DENIE_C10_ON_PD: allow going into C10 on PD
 * @LTR_CFG_FLAG_UPDATE_VALUES: update config values and short
 *	idle timeout
 */
enum iwl_ltr_config_flags {
	LTR_CFG_FLAG_FEATURE_ENABLE = BIT(0),
	LTR_CFG_FLAG_HW_DIS_ON_SHADOW_REG_ACCESS = BIT(1),
	LTR_CFG_FLAG_HW_EN_SHRT_WR_THROUGH = BIT(2),
	LTR_CFG_FLAG_HW_DIS_ON_D0_2_D3 = BIT(3),
	LTR_CFG_FLAG_SW_SET_SHORT = BIT(4),
	LTR_CFG_FLAG_SW_SET_LONG = BIT(5),
	LTR_CFG_FLAG_DENIE_C10_ON_PD = BIT(6),
	LTR_CFG_FLAG_UPDATE_VALUES = BIT(7),
};

/**
 * struct iwl_ltr_config_cmd_v1 - configures the LTR
 * @flags: See &enum iwl_ltr_config_flags
 * @static_long: static LTR Long register value.
 * @static_short: static LTR Short register value.
 */
struct iwl_ltr_config_cmd_v1 {
	__le32 flags;
	__le32 static_long;
	__le32 static_short;
} __packed; /* LTR_CAPABLE_API_S_VER_1 */

#define LTR_VALID_STATES_NUM 4

/**
 * struct iwl_ltr_config_cmd - configures the LTR
 * @flags: See &enum iwl_ltr_config_flags
 * @static_long: static LTR Long register value.
 * @static_short: static LTR Short register value.
 * @ltr_cfg_values: LTR parameters table values (in usec) in folowing order:
 *	TX, RX, Short Idle, Long Idle. Used only if %LTR_CFG_FLAG_UPDATE_VALUES
 *	is set.
 * @ltr_short_idle_timeout: LTR Short Idle timeout (in usec). Used only if
 *	%LTR_CFG_FLAG_UPDATE_VALUES is set.
 */
struct iwl_ltr_config_cmd {
	__le32 flags;
	__le32 static_long;
	__le32 static_short;
	__le32 ltr_cfg_values[LTR_VALID_STATES_NUM];
	__le32 ltr_short_idle_timeout;
} __packed; /* LTR_CAPABLE_API_S_VER_2 */

/* Radio LP RX Energy Threshold measured in dBm */
#define POWER_LPRX_RSSI_THRESHOLD	75
#define POWER_LPRX_RSSI_THRESHOLD_MAX	94
#define POWER_LPRX_RSSI_THRESHOLD_MIN	30

/**
 * enum iwl_power_flags - masks for power table command flags
 * @POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off
 *		receiver and transmitter. '0' - does not allow.
 * @POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK: '0' Driver disables power management,
 *		'1' Driver enables PM (use rest of parameters)
 * @POWER_FLAGS_SKIP_OVER_DTIM_MSK: '0' PM have to walk up every DTIM,
 *		'1' PM could sleep over DTIM till listen Interval.
 * @POWER_FLAGS_SNOOZE_ENA_MSK: Enable snoozing only if uAPSD is enabled and all
 *		access categories are both delivery and trigger enabled.
 * @POWER_FLAGS_BT_SCO_ENA: Enable BT SCO coex only if uAPSD and
 *		PBW Snoozing enabled
 * @POWER_FLAGS_ADVANCE_PM_ENA_MSK: Advanced PM (uAPSD) enable mask
 * @POWER_FLAGS_LPRX_ENA_MSK: Low Power RX enable.
 * @POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK: AP/GO's uAPSD misbehaving
 *		detection enablement
*/
enum iwl_power_flags {
	POWER_FLAGS_POWER_SAVE_ENA_MSK		= BIT(0),
	POWER_FLAGS_POWER_MANAGEMENT_ENA_MSK	= BIT(1),
	POWER_FLAGS_SKIP_OVER_DTIM_MSK		= BIT(2),
	POWER_FLAGS_SNOOZE_ENA_MSK		= BIT(5),
	POWER_FLAGS_BT_SCO_ENA			= BIT(8),
	POWER_FLAGS_ADVANCE_PM_ENA_MSK		= BIT(9),
	POWER_FLAGS_LPRX_ENA_MSK		= BIT(11),
	POWER_FLAGS_UAPSD_MISBEHAVING_ENA_MSK	= BIT(12),
};

#define IWL_POWER_VEC_SIZE 5

/**
 * struct iwl_powertable_cmd - legacy power command. Beside old API support this
 *	is used also with a new	power API for device wide power settings.
 * POWER_TABLE_CMD = 0x77 (command, has simple generic response)
 *
 * @flags:		Power table command flags from POWER_FLAGS_*
 * @keep_alive_seconds: Keep alive period in seconds. Default - 25 sec.
 *			Minimum allowed:- 3 * DTIM. Keep alive period must be
 *			set regardless of power scheme or current power state.
 *			FW use this value also when PM is disabled.
 * @debug_flags:	debug flags
 * @rx_data_timeout:    Minimum time (usec) from last Rx packet for AM to
 *			PSM transition - legacy PM
 * @tx_data_timeout:    Minimum time (usec) from last Tx packet for AM to
 *			PSM transition - legacy PM
 * @sleep_interval:	not in use
 * @skip_dtim_periods:	Number of DTIM periods to skip if Skip over DTIM flag
 *			is set. For example, if it is required to skip over
 *			one DTIM, this value need to be set to 2 (DTIM periods).
 * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled.
 *			Default: 80dbm
 */
struct iwl_powertable_cmd {
	/* PM_POWER_TABLE_CMD_API_S_VER_6 */
	__le16 flags;
	u8 keep_alive_seconds;
	u8 debug_flags;
	__le32 rx_data_timeout;
	__le32 tx_data_timeout;
	__le32 sleep_interval[IWL_POWER_VEC_SIZE];
	__le32 skip_dtim_periods;
	__le32 lprx_rssi_threshold;
} __packed;

/**
 * enum iwl_device_power_flags - masks for device power command flags
 * @DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK:
 *	'1' Allow to save power by turning off
 *	receiver and transmitter. '0' - does not allow.
 * @DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK:
 *	Device Retention indication, '1' indicate retention is enabled.
 * @DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK:
 *	Prevent power save until entering d3 is completed.
 * @DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK:
 *	32Khz external slow clock valid indication, '1' indicate cloack is
 *	valid.
*/
enum iwl_device_power_flags {
	DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK		= BIT(0),
	DEVICE_POWER_FLAGS_ALLOW_MEM_RETENTION_MSK	= BIT(1),
	DEVICE_POWER_FLAGS_NO_SLEEP_TILL_D3_MSK		= BIT(7),
	DEVICE_POWER_FLAGS_32K_CLK_VALID_MSK		= BIT(12),
};

/**
 * struct iwl_device_power_cmd - device wide power command.
 * DEVICE_POWER_CMD = 0x77 (command, has simple generic response)
 *
 * @flags:	Power table command flags from &enum iwl_device_power_flags
 * @reserved: reserved (padding)
 */
struct iwl_device_power_cmd {
	/* PM_POWER_TABLE_CMD_API_S_VER_7 */
	__le16 flags;
	__le16 reserved;
} __packed;

/**
 * struct iwl_mac_power_cmd - New power command containing uAPSD support
 * MAC_PM_POWER_TABLE = 0xA9 (command, has simple generic response)
 * @id_and_color:	MAC contex identifier, &enum iwl_ctxt_id_and_color
 * @flags:		Power table command flags from POWER_FLAGS_*
 * @keep_alive_seconds:	Keep alive period in seconds. Default - 25 sec.
 *			Minimum allowed:- 3 * DTIM. Keep alive period must be
 *			set regardless of power scheme or current power state.
 *			FW use this value also when PM is disabled.
 * @rx_data_timeout:    Minimum time (usec) from last Rx packet for AM to
 *			PSM transition - legacy PM
 * @tx_data_timeout:    Minimum time (usec) from last Tx packet for AM to
 *			PSM transition - legacy PM
 * @skip_dtim_periods:	Number of DTIM periods to skip if Skip over DTIM flag
 *			is set. For example, if it is required to skip over
 *			one DTIM, this value need to be set to 2 (DTIM periods).
 * @rx_data_timeout_uapsd: Minimum time (usec) from last Rx packet for AM to
 *			PSM transition - uAPSD
 * @tx_data_timeout_uapsd: Minimum time (usec) from last Tx packet for AM to
 *			PSM transition - uAPSD
 * @lprx_rssi_threshold: Signal strength up to which LP RX can be enabled.
 *			Default: 80dbm
 * @snooze_interval:	Maximum time between attempts to retrieve buffered data
 *			from the AP [msec]
 * @snooze_window:	A window of time in which PBW snoozing insures that all
 *			packets received. It is also the minimum time from last
 *			received unicast RX packet, before client stops snoozing
 *			for data. [msec]
 * @snooze_step:	TBD
 * @qndp_tid:		TID client shall use for uAPSD QNDP triggers
 * @uapsd_ac_flags:	Set trigger-enabled and delivery-enabled indication for
 *			each corresponding AC.
 *			Use IEEE80211_WMM_IE_STA_QOSINFO_AC* for correct values.
 * @uapsd_max_sp:	Use IEEE80211_WMM_IE_STA_QOSINFO_SP_* for correct
 *			values.
 * @heavy_tx_thld_packets:	TX threshold measured in number of packets
 * @heavy_rx_thld_packets:	RX threshold measured in number of packets
 * @heavy_tx_thld_percentage:	TX threshold measured in load's percentage
 * @heavy_rx_thld_percentage:	RX threshold measured in load's percentage
 * @limited_ps_threshold: (unused)
 * @reserved: reserved (padding)
 */
struct iwl_mac_power_cmd {
	/* CONTEXT_DESC_API_T_VER_1 */
	__le32 id_and_color;

	/* CLIENT_PM_POWER_TABLE_S_VER_1 */
	__le16 flags;
	__le16 keep_alive_seconds;
	__le32 rx_data_timeout;
	__le32 tx_data_timeout;
	__le32 rx_data_timeout_uapsd;
	__le32 tx_data_timeout_uapsd;
	u8 lprx_rssi_threshold;
	u8 skip_dtim_periods;
	__le16 snooze_interval;
	__le16 snooze_window;
	u8 snooze_step;
	u8 qndp_tid;
	u8 uapsd_ac_flags;
	u8 uapsd_max_sp;
	u8 heavy_tx_thld_packets;
	u8 heavy_rx_thld_packets;
	u8 heavy_tx_thld_percentage;
	u8 heavy_rx_thld_percentage;
	u8 limited_ps_threshold;
	u8 reserved;
} __packed;

/*
 * struct iwl_uapsd_misbehaving_ap_notif - FW sends this notification when
 * associated AP is identified as improperly implementing uAPSD protocol.
 * PSM_UAPSD_AP_MISBEHAVING_NOTIFICATION = 0x78
 * @sta_id: index of station in uCode's station table - associated AP ID in
 *	    this context.
 */
struct iwl_uapsd_misbehaving_ap_notif {
	__le32 sta_id;
	u8 mac_id;
	u8 reserved[3];
} __packed;

/**
 * struct iwl_reduce_tx_power_cmd - TX power reduction command
 * REDUCE_TX_POWER_CMD = 0x9f
 * @flags: (reserved for future implementation)
 * @mac_context_id: id of the mac ctx for which we are reducing TX power.
 * @pwr_restriction: TX power restriction in dBms.
 */
struct iwl_reduce_tx_power_cmd {
	u8 flags;
	u8 mac_context_id;
	__le16 pwr_restriction;
} __packed; /* TX_REDUCED_POWER_API_S_VER_1 */

enum iwl_dev_tx_power_cmd_mode {
	IWL_TX_POWER_MODE_SET_MAC = 0,
	IWL_TX_POWER_MODE_SET_DEVICE = 1,
	IWL_TX_POWER_MODE_SET_CHAINS = 2,
	IWL_TX_POWER_MODE_SET_ACK = 3,
	IWL_TX_POWER_MODE_SET_SAR_TIMER = 4,
	IWL_TX_POWER_MODE_SET_SAR_TIMER_DEFAULT_TABLE = 5,
}; /* TX_POWER_REDUCED_FLAGS_TYPE_API_E_VER_5 */;

#define IWL_NUM_CHAIN_TABLES	1
#define IWL_NUM_CHAIN_TABLES_V2	2
#define IWL_NUM_CHAIN_LIMITS	2
#define IWL_NUM_SUB_BANDS_V1	5
#define IWL_NUM_SUB_BANDS_V2	11

/**
 * struct iwl_dev_tx_power_common - Common part of the TX power reduction cmd
 * @set_mode: see &enum iwl_dev_tx_power_cmd_mode
 * @mac_context_id: id of the mac ctx for which we are reducing TX power.
 * @pwr_restriction: TX power restriction in 1/8 dBms.
 */
struct iwl_dev_tx_power_common {
	__le32 set_mode;
	__le32 mac_context_id;
	__le16 pwr_restriction;
} __packed;

/**
 * struct iwl_dev_tx_power_cmd_v3 - TX power reduction command version 3
 * @per_chain: per chain restrictions
 */
struct iwl_dev_tx_power_cmd_v3 {
	__le16 per_chain[IWL_NUM_CHAIN_TABLES][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V1];
} __packed; /* TX_REDUCED_POWER_API_S_VER_3 */

#define IWL_DEV_MAX_TX_POWER 0x7FFF

/**
 * struct iwl_dev_tx_power_cmd_v4 - TX power reduction command version 4
 * @per_chain: per chain restrictions
 * @enable_ack_reduction: enable or disable close range ack TX power
 *	reduction.
 * @reserved: reserved (padding)
 */
struct iwl_dev_tx_power_cmd_v4 {
	__le16 per_chain[IWL_NUM_CHAIN_TABLES][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V1];
	u8 enable_ack_reduction;
	u8 reserved[3];
} __packed; /* TX_REDUCED_POWER_API_S_VER_4 */

/**
 * struct iwl_dev_tx_power_cmd_v5 - TX power reduction command version 5
 * @per_chain: per chain restrictions
 * @enable_ack_reduction: enable or disable close range ack TX power
 *	reduction.
 * @per_chain_restriction_changed: is per_chain_restriction has changed
 *	from last command. used if set_mode is
 *	IWL_TX_POWER_MODE_SET_SAR_TIMER.
 *	note: if not changed, the command is used for keep alive only.
 * @reserved: reserved (padding)
 * @timer_period: timer in milliseconds. if expires FW will change to default
 *	BIOS values. relevant if setMode is IWL_TX_POWER_MODE_SET_SAR_TIMER
 */
struct iwl_dev_tx_power_cmd_v5 {
	__le16 per_chain[IWL_NUM_CHAIN_TABLES][IWL_NUM_CHAIN_LIMITS][IWL_NUM_SUB_BANDS_V1];
	u8 enable_ack_reduction;
	u8 per_chain_restriction_changed;
	u8 reserved[2];
	__le32 timer_period;
} __packed; /* TX_REDUCED_POWER_API_S_VER_5 */

/**
 * struct iwl_dev_tx_power_cmd_v6 - TX power reduction command version 6
 * @per_chain: per chain restrictions
 * @enable_ack_reduction: enable or disable close range ack TX power
 *	reduction.
 * @per_chain_restriction_changed: is per_chain_restriction has changed
 *	from last command. used if set_mode is
 *	IWL_TX_POWER_MODE_SET_SAR_TIMER.
 *	note: if not chang