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Commit fb3ceb81 authored by Emmanuel Grumbach's avatar Emmanuel Grumbach Committed by Johannes Berg
Browse files

iwlwifi: mvm: add BT Coex FW API 



This is the API to tell the fw to handle the BT Coexistence.

Signed-off-by: default avatarEmmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 3b4612fb

drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h

0 → 100644
+319 −0
Original line number Diff line number Diff line 
/******************************************************************************

 *

 * This file is provided under a dual BSD/GPLv2 license.  When using or

 * redistributing this file, you may do so under either license.

 *

 * GPL LICENSE SUMMARY

 *

 * Copyright(c) 2013 Intel Corporation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of version 2 of the GNU General Public License as

 * published by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,

 * USA

 *

 * The full GNU General Public License is included in this distribution

 * in the file called COPYING.

 *

 * Contact Information:

 *  Intel Linux Wireless <ilw@linux.intel.com>

 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497

 *

 * BSD LICENSE

 *

 * Copyright(c) 2013 Intel Corporation. All rights reserved.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 *

 *  * Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 *  * Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in

 *    the documentation and/or other materials provided with the

 *    distribution.

 *  * Neither the name Intel Corporation nor the names of its

 *    contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 *****************************************************************************/



#ifndef __fw_api_bt_coex_h__

#define __fw_api_bt_coex_h__



#include <linux/types.h>

#include <linux/bitops.h>



#define BITS(nb) (BIT(nb) - 1)



/**

 * enum iwl_bt_coex_flags - flags for BT_COEX command

 * @BT_CH_PRIMARY_EN:

 * @BT_CH_SECONDARY_EN:

 * @BT_NOTIF_COEX_OFF:

 * @BT_COEX_MODE_POS:

 * @BT_COEX_MODE_MSK:

 * @BT_COEX_DISABLE:

 * @BT_COEX_2W:

 * @BT_COEX_3W:

 * @BT_COEX_NW:

 * @BT_USE_DEFAULTS:

 * @BT_SYNC_2_BT_DISABLE:

 * @BT_COEX_CORUNNING_TBL_EN:

 */

enum iwl_bt_coex_flags {

	BT_CH_PRIMARY_EN		= BIT(0),

	BT_CH_SECONDARY_EN		= BIT(1),

	BT_NOTIF_COEX_OFF		= BIT(2),

	BT_COEX_MODE_POS		= 3,

	BT_COEX_MODE_MSK		= BITS(3) << BT_COEX_MODE_POS,

	BT_COEX_DISABLE			= 0x0 << BT_COEX_MODE_POS,

	BT_COEX_2W			= 0x1 << BT_COEX_MODE_POS,

	BT_COEX_3W			= 0x2 << BT_COEX_MODE_POS,

	BT_COEX_NW			= 0x3 << BT_COEX_MODE_POS,

	BT_USE_DEFAULTS			= BIT(6),

	BT_SYNC_2_BT_DISABLE		= BIT(7),

	/*

	 * For future use - when the flags will be enlarged

	 * BT_COEX_CORUNNING_TBL_EN	= BIT(8),

	 */

};



/*

 * indicates what has changed in the BT_COEX command.

 */

enum iwl_bt_coex_valid_bit_msk {

	BT_VALID_ENABLE			= BIT(0),

	BT_VALID_BT_PRIO_BOOST		= BIT(1),

	BT_VALID_MAX_KILL		= BIT(2),

	BT_VALID_3W_TMRS		= BIT(3),

	BT_VALID_KILL_ACK		= BIT(4),

	BT_VALID_KILL_CTS		= BIT(5),

	BT_VALID_REDUCED_TX_POWER	= BIT(6),

	BT_VALID_LUT			= BIT(7),

	BT_VALID_WIFI_RX_SW_PRIO_BOOST	= BIT(8),

	BT_VALID_WIFI_TX_SW_PRIO_BOOST	= BIT(9),

	BT_VALID_MULTI_PRIO_LUT		= BIT(10),

	BT_VALID_TRM_KICK_FILTER	= BIT(11),

	BT_VALID_CORUN_LUT_20		= BIT(12),

	BT_VALID_CORUN_LUT_40		= BIT(13),

	BT_VALID_ANT_ISOLATION		= BIT(14),

	BT_VALID_ANT_ISOLATION_THRS	= BIT(15),

	/*

	 * For future use - when the valid flags will be enlarged

	 * BT_VALID_TXTX_DELTA_FREQ_THRS	= BIT(16),

	 * BT_VALID_TXRX_MAX_FREQ_0	= BIT(17),

	 */

};



/**

 * enum iwl_bt_reduced_tx_power - allows to reduce txpower for WiFi frames.

 * @BT_REDUCED_TX_POWER_CTL: reduce Tx power for control frames

 * @BT_REDUCED_TX_POWER_DATA: reduce Tx power for data frames

 *

 * This mechanism allows to have BT and WiFi run concurrently. Since WiFi

 * reduces its Tx power, it can work along with BT, hence reducing the amount

 * of WiFi frames being killed by BT.

 */

enum iwl_bt_reduced_tx_power {

	BT_REDUCED_TX_POWER_CTL		= BIT(0),

	BT_REDUCED_TX_POWER_DATA	= BIT(1),

};



#define BT_COEX_LUT_SIZE (12)



/**

 * struct iwl_bt_coex_cmd - bt coex configuration command

 * @flags:&enum iwl_bt_coex_flags

 * @lead_time:

 * @max_kill:

 * @bt3_time_t7_value:

 * @kill_ack_msk:

 * @kill_cts_msk:

 * @bt3_prio_sample_time:

 * @bt3_timer_t2_value:

 * @bt4_reaction_time:

 * @decision_lut[12]:

 * @bt_reduced_tx_power: enum %iwl_bt_reduced_tx_power

 * @valid_bit_msk: enum %iwl_bt_coex_valid_bit_msk

 * @bt_prio_boost: values for PTA boost register

 * @wifi_tx_prio_boost: SW boost of wifi tx priority

 * @wifi_rx_prio_boost: SW boost of wifi rx priority

 *

 * The structure is used for the BT_COEX command.

 */

struct iwl_bt_coex_cmd {

	u8 flags;

	u8 lead_time;

	u8 max_kill;

	u8 bt3_time_t7_value;

	__le32 kill_ack_msk;

	__le32 kill_cts_msk;

	u8 bt3_prio_sample_time;

	u8 bt3_timer_t2_value;

	__le16 bt4_reaction_time;

	__le32 decision_lut[BT_COEX_LUT_SIZE];

	u8 bt_reduced_tx_power;

	u8 reserved;

	__le16 valid_bit_msk;

	__le32 bt_prio_boost;

	u8 reserved2;

	u8 wifi_tx_prio_boost;

	__le16 wifi_rx_prio_boost;

} __packed; /* BT_COEX_CMD_API_S_VER_3 */



#define BT_MBOX(n_dw, _msg, _pos, _nbits)	\

	BT_MBOX##n_dw##_##_msg##_POS = (_pos),	\

	BT_MBOX##n_dw##_##_msg = BITS(_nbits) << BT_MBOX##n_dw##_##_msg##_POS



enum iwl_bt_mxbox_dw0 {

	BT_MBOX(0, LE_SLAVE_LAT, 0, 3),

	BT_MBOX(0, LE_PROF1, 3, 1),

	BT_MBOX(0, LE_PROF2, 4, 1),

	BT_MBOX(0, LE_PROF_OTHER, 5, 1),

	BT_MBOX(0, CHL_SEQ_N, 8, 4),

	BT_MBOX(0, INBAND_S, 13, 1),

	BT_MBOX(0, LE_MIN_RSSI, 16, 4),

	BT_MBOX(0, LE_SCAN, 20, 1),

	BT_MBOX(0, LE_ADV, 21, 1),

	BT_MBOX(0, LE_MAX_TX_POWER, 24, 4),

	BT_MBOX(0, OPEN_CON_1, 28, 2),

};



enum iwl_bt_mxbox_dw1 {

	BT_MBOX(1, BR_MAX_TX_POWER, 0, 4),

	BT_MBOX(1, IP_SR, 4, 1),

	BT_MBOX(1, LE_MSTR, 5, 1),

	BT_MBOX(1, AGGR_TRFC_LD, 8, 6),

	BT_MBOX(1, MSG_TYPE, 16, 3),

	BT_MBOX(1, SSN, 19, 2),

};



enum iwl_bt_mxbox_dw2 {

	BT_MBOX(2, SNIFF_ACT, 0, 3),

	BT_MBOX(2, PAG, 3, 1),

	BT_MBOX(2, INQUIRY, 4, 1),

	BT_MBOX(2, CONN, 5, 1),

	BT_MBOX(2, SNIFF_INTERVAL, 8, 5),

	BT_MBOX(2, DISC, 13, 1),

	BT_MBOX(2, SCO_TX_ACT, 16, 2),

	BT_MBOX(2, SCO_RX_ACT, 18, 2),

	BT_MBOX(2, ESCO_RE_TX, 20, 2),

	BT_MBOX(2, SCO_DURATION, 24, 6),

};



enum iwl_bt_mxbox_dw3 {

	BT_MBOX(3, SCO_STATE, 0, 1),

	BT_MBOX(3, SNIFF_STATE, 1, 1),

	BT_MBOX(3, A2DP_STATE, 2, 1),

	BT_MBOX(3, ACL_STATE, 3, 1),

	BT_MBOX(3, MSTR_STATE, 4, 1),

	BT_MBOX(3, OBX_STATE, 5, 1),

	BT_MBOX(3, OPEN_CON_2, 8, 2),

	BT_MBOX(3, TRAFFIC_LOAD, 10, 2),

	BT_MBOX(3, CHL_SEQN_LSB, 12, 1),

	BT_MBOX(3, INBAND_P, 13, 1),

	BT_MBOX(3, MSG_TYPE_2, 16, 3),

	BT_MBOX(3, SSN_2, 19, 2),

	BT_MBOX(3, UPDATE_REQUEST, 21, 1),

};



#define BT_MBOX_MSG(_notif, _num, _field)				     \

	((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\

	>> BT_MBOX##_num##_##_field##_POS)



/**

 * struct iwl_bt_coex_profile_notif - notification about BT coex

 * @mbox_msg: message from BT to WiFi

 * @:bt_status: 0 - off, 1 - on

 * @:bt_open_conn: number of BT connections open

 * @:bt_traffic_load: load of BT traffic

 * @:bt_agg_traffic_load: aggregated load of BT traffic

 * @:bt_ci_compliance: 0 - no CI compliance, 1 - CI compliant

 */

struct iwl_bt_coex_profile_notif {

	__le32 mbox_msg[4];

	u8 bt_status;

	u8 bt_open_conn;

	u8 bt_traffic_load;

	u8 bt_agg_traffic_load;

	u8 bt_ci_compliance;

	u8 reserved[3];

} __packed; /* BT_COEX_PROFILE_NTFY_API_S_VER_2 */



enum iwl_bt_coex_prio_table_event {

	BT_COEX_PRIO_TBL_EVT_INIT_CALIB1		= 0,

	BT_COEX_PRIO_TBL_EVT_INIT_CALIB2		= 1,

	BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW1	= 2,

	BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_LOW2	= 3,

	BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH1	= 4,

	BT_COEX_PRIO_TBL_EVT_PERIODIC_CALIB_HIGH2	= 5,

	BT_COEX_PRIO_TBL_EVT_DTIM			= 6,

	BT_COEX_PRIO_TBL_EVT_SCAN52			= 7,

	BT_COEX_PRIO_TBL_EVT_SCAN24			= 8,

	BT_COEX_PRIO_TBL_EVT_IDLE			= 9,

	BT_COEX_PRIO_TBL_EVT_MAX			= 16,

}; /* BT_COEX_PRIO_TABLE_EVENTS_API_E_VER_1 */



enum iwl_bt_coex_prio_table_prio {

	BT_COEX_PRIO_TBL_DISABLED	= 0,

	BT_COEX_PRIO_TBL_PRIO_LOW	= 1,

	BT_COEX_PRIO_TBL_PRIO_HIGH	= 2,

	BT_COEX_PRIO_TBL_PRIO_BYPASS	= 3,

	BT_COEX_PRIO_TBL_PRIO_COEX_OFF	= 4,

	BT_COEX_PRIO_TBL_PRIO_COEX_ON	= 5,

	BT_COEX_PRIO_TBL_PRIO_COEX_IDLE = 6,

	BT_COEX_PRIO_TBL_MAX		= 8,

}; /* BT_COEX_PRIO_TABLE_PRIORITIES_API_E_VER_1 */



#define BT_COEX_PRIO_TBL_SHRD_ANT_POS     (0)

#define BT_COEX_PRIO_TBL_PRIO_POS         (1)

#define BT_COEX_PRIO_TBL_RESERVED_POS     (4)



/**

 * struct iwl_bt_coex_prio_tbl_cmd - priority table for BT coex

 * @prio_tbl:

 */

struct iwl_bt_coex_prio_tbl_cmd {

	u8 prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX];

} __packed;



enum iwl_bt_coex_env_action {

	BT_COEX_ENV_CLOSE	 = 0,

	BT_COEX_ENV_OPEN	 = 1,

}; /* BT_COEX_PROT_ENV_ACTION_API_E_VER_1 */



/**

 * struct iwl_bt_coex_prot_env_cmd - BT Protection Envelope

 * @action: enum %iwl_bt_coex_env_action

 * @type: enum %iwl_bt_coex_prio_table_event

 */

struct iwl_bt_coex_prot_env_cmd {

	u8 action; /* 0 = closed, 1 = open */

	u8 type; /* 0 .. 15 */

	u8 reserved[2];

} __packed;



#endif /* __fw_api_bt_coex_h__ */

drivers/net/wireless/iwlwifi/mvm/fw-api.h

+7 −0
Original line number Diff line number Diff line
@@ -70,6 +70,7 @@ 
#include "fw-api-mac.h"

#include "fw-api-power.h"

#include "fw-api-d3.h"

#include "fw-api-bt-coex.h"



/* queue and FIFO numbers by usage */

enum {
@@ -152,6 +153,7 @@ enum { 


	BEACON_TEMPLATE_CMD = 0x91,

	TX_ANT_CONFIGURATION_CMD = 0x98,

	BT_CONFIG = 0x9b,

	STATISTICS_NOTIFICATION = 0x9d,



	/* RF-KILL commands and notifications */
@@ -162,6 +164,11 @@ enum { 
	REPLY_RX_MPDU_CMD = 0xc1,

	BA_NOTIF = 0xc5,



	/* BT Coex */

	BT_COEX_PRIO_TABLE = 0xcc,

	BT_COEX_PROT_ENV = 0xcd,

	BT_PROFILE_NOTIFICATION = 0xce,



	REPLY_DEBUG_CMD = 0xf0,

	DEBUG_LOG_MSG = 0xf7,

drivers/net/wireless/iwlwifi/mvm/ops.c

+4 −0
Original line number Diff line number Diff line
@@ -294,6 +294,10 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = { 
	CMD(NET_DETECT_HOTSPOTS_CMD),

	CMD(NET_DETECT_HOTSPOTS_QUERY_CMD),

	CMD(CARD_STATE_NOTIFICATION),

	CMD(BT_COEX_PRIO_TABLE),

	CMD(BT_COEX_PROT_ENV),

	CMD(BT_PROFILE_NOTIFICATION),

	CMD(BT_CONFIG),

};

#undef CMD