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iwlwifi: mvm: add TDLS channel switch FW APIs

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Add a channel-switch command and a switch-start notification. Also add a
FW TLV bit indicating TDLS channel switching support.

Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
This commit is contained in:
Arik Nemtsov 2014-09-11 13:10:08 +03:00 committed by Emmanuel Grumbach
parent d8f1c51570
commit 77c5d7eff7
3 changed files with 87 additions and 0 deletions
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2
drivers/net/wireless/iwlwifi/iwl-fw.h
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@ -157,6 +157,7 @@ enum iwl_ucode_tlv_api {
* @IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT: supports Quiet Period requests
* @IWL_UCODE_TLV_CAPA_DQA_SUPPORT: supports dynamic queue allocation (DQA),
* which also implies support for the scheduler configuration command
* @IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH: supports TDLS channel switching
*/
enum iwl_ucode_tlv_capa {
IWL_UCODE_TLV_CAPA_D0I3_SUPPORT = BIT(0),
@ -167,6 +168,7 @@ enum iwl_ucode_tlv_capa {
IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT = BIT(10),
IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT = BIT(11),
IWL_UCODE_TLV_CAPA_DQA_SUPPORT = BIT(12),
IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH = BIT(13),
};
/* The default calibrate table size if not specified by firmware file */

83
drivers/net/wireless/iwlwifi/mvm/fw-api.h
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@ -128,6 +128,10 @@ enum {
/* global key */
WEP_KEY = 0x20,
/* TDLS */
TDLS_CHANNEL_SWITCH_CMD = 0x27,
TDLS_CHANNEL_SWITCH_NOTIFICATION = 0xaa,
/* MAC and Binding commands */
MAC_CONTEXT_CMD = 0x28,
TIME_EVENT_CMD = 0x29, /* both CMD and response */
@ -1717,4 +1721,83 @@ struct iwl_scd_txq_cfg_cmd {
u8 flags;
} __packed;
/***********************************
* TDLS API
***********************************/
/* Type of TDLS request */
enum iwl_tdls_channel_switch_type {
TDLS_SEND_CHAN_SW_REQ = 0,
TDLS_SEND_CHAN_SW_RESP_AND_MOVE_CH,
TDLS_MOVE_CH,
}; /* TDLS_STA_CHANNEL_SWITCH_CMD_TYPE_API_E_VER_1 */
/**
* Switch timing sub-element in a TDLS channel-switch command
* @frame_timestamp: GP2 timestamp of channel-switch request/response packet
* received from peer
* @max_offchan_duration: What amount of microseconds out of a DTIM is given
* to the TDLS off-channel communication. For instance if the DTIM is
* 200TU and the TDLS peer is to be given 25% of the time, the value
* given will be 50TU, or 50 * 1024 if translated into microseconds.
* @switch_time: switch time the peer sent in its channel switch timing IE
* @switch_timout: switch timeout the peer sent in its channel switch timing IE
*/
struct iwl_tdls_channel_switch_timing {
__le32 frame_timestamp; /* GP2 time of peer packet Rx */
__le32 max_offchan_duration; /* given in micro-seconds */
__le32 switch_time; /* given in micro-seconds */
__le32 switch_timeout; /* given in micro-seconds */
} __packed; /* TDLS_STA_CHANNEL_SWITCH_TIMING_DATA_API_S_VER_1 */
#define IWL_TDLS_CH_SW_FRAME_MAX_SIZE 200
/**
* TDLS channel switch frame template
*
* A template representing a TDLS channel-switch request or response frame
*
* @switch_time_offset: offset to the channel switch timing IE in the template
* @tx_cmd: Tx parameters for the frame
* @data: frame data
*/
struct iwl_tdls_channel_switch_frame {
__le32 switch_time_offset;
struct iwl_tx_cmd tx_cmd;
u8 data[IWL_TDLS_CH_SW_FRAME_MAX_SIZE];
} __packed; /* TDLS_STA_CHANNEL_SWITCH_FRAME_API_S_VER_1 */
/**
* TDLS channel switch command
*
* The command is sent to initiate a channel switch and also in response to
* incoming TDLS channel-switch request/response packets from remote peers.
*
* @switch_type: see &enum iwl_tdls_channel_switch_type
* @peer_sta_id: station id of TDLS peer
* @ci: channel we switch to
* @timing: timing related data for command
* @frame: channel-switch request/response template, depending to switch_type
*/
struct iwl_tdls_channel_switch_cmd {
u8 switch_type;
__le32 peer_sta_id;
struct iwl_fw_channel_info ci;
struct iwl_tdls_channel_switch_timing timing;
struct iwl_tdls_channel_switch_frame frame;
} __packed; /* TDLS_STA_CHANNEL_SWITCH_CMD_API_S_VER_1 */
/**
* TDLS channel switch start notification
*
* @status: non-zero on success
* @offchannel_duration: duration given in microseconds
* @sta_id: peer currently performing the channel-switch with
*/
struct iwl_tdls_channel_switch_notif {
__le32 status;
__le32 offchannel_duration;
__le32 sta_id;
} __packed; /* TDLS_STA_CHANNEL_SWITCH_NTFY_API_S_VER_1 */
#endif /* __fw_api_h__ */

2
drivers/net/wireless/iwlwifi/mvm/ops.c
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@ -352,6 +352,8 @@ static const char *const iwl_mvm_cmd_strings[REPLY_MAX] = {
CMD(SCAN_REQ_UMAC),
CMD(SCAN_ABORT_UMAC),
CMD(SCAN_COMPLETE_UMAC),
CMD(TDLS_CHANNEL_SWITCH_CMD),
CMD(TDLS_CHANNEL_SWITCH_NOTIFICATION),
};
#undef CMD