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iwlwifi: mvm: add support to the new FW time event API

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The time event firmware API will change, add the support for that.
Use the new API throughout and convert to the old where needed.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Eytan Lifshitz 2013-08-07 19:36:42 +03:00 committed by Johannes Berg
parent 6e8773c314
commit f8f03c3edc
3 changed files with 256 additions and 78 deletions
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2
drivers/net/wireless/iwlwifi/iwl-fw.h
View File

@ -76,6 +76,7 @@
* @IWL_UCODE_TLV_FLAGS_DW_BC_TABLE: The SCD byte count table is in DWORDS
* @IWL_UCODE_TLV_FLAGS_UAPSD: This uCode image supports uAPSD
* @IWL_UCODE_TLV_FLAGS_RX_ENERGY_API: supports rx signal strength api
* @IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2: using the new time event API.
* @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six
* (rather than two) IPv6 addresses
* @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
@ -88,6 +89,7 @@ enum iwl_ucode_tlv_flag {
IWL_UCODE_TLV_FLAGS_DW_BC_TABLE = BIT(4),
IWL_UCODE_TLV_FLAGS_UAPSD = BIT(6),
IWL_UCODE_TLV_FLAGS_RX_ENERGY_API = BIT(8),
IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2 = BIT(9),
IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS = BIT(10),
IWL_UCODE_TLV_FLAGS_BF_UPDATED = BIT(11),
};

236
drivers/net/wireless/iwlwifi/mvm/fw-api.h
View File

@ -499,71 +499,79 @@ enum iwl_time_event_type {
TE_MAX
}; /* MAC_EVENT_TYPE_API_E_VER_1 */
/* Time Event dependencies: none, on another TE, or in a specific time */
enum {
TE_INDEPENDENT = 0,
TE_DEP_OTHER = 1,
TE_DEP_TSF = 2,
TE_EVENT_SOCIOPATHIC = 4,
}; /* MAC_EVENT_DEPENDENCY_POLICY_API_E_VER_2 */
/*
* Supported Time event notifications configuration.
* A notification (both event and fragment) includes a status indicating weather
* the FW was able to schedule the event or not. For fragment start/end
* notification the status is always success. There is no start/end fragment
* notification for monolithic events.
*
* @TE_NOTIF_NONE: no notifications
* @TE_NOTIF_HOST_EVENT_START: request/receive notification on event start
* @TE_NOTIF_HOST_EVENT_END:request/receive notification on event end
* @TE_NOTIF_INTERNAL_EVENT_START: internal FW use
* @TE_NOTIF_INTERNAL_EVENT_END: internal FW use.
* @TE_NOTIF_HOST_FRAG_START: request/receive notification on frag start
* @TE_NOTIF_HOST_FRAG_END:request/receive notification on frag end
* @TE_NOTIF_INTERNAL_FRAG_START: internal FW use.
* @TE_NOTIF_INTERNAL_FRAG_END: internal FW use.
*/
enum {
TE_NOTIF_NONE = 0,
TE_NOTIF_HOST_EVENT_START = 0x1,
TE_NOTIF_HOST_EVENT_END = 0x2,
TE_NOTIF_INTERNAL_EVENT_START = 0x4,
TE_NOTIF_INTERNAL_EVENT_END = 0x8,
TE_NOTIF_HOST_FRAG_START = 0x10,
TE_NOTIF_HOST_FRAG_END = 0x20,
TE_NOTIF_INTERNAL_FRAG_START = 0x40,
TE_NOTIF_INTERNAL_FRAG_END = 0x80
}; /* MAC_EVENT_ACTION_API_E_VER_2 */
/* Time event - defines for command API v1 */
/*
* @TE_FRAG_NONE: fragmentation of the time event is NOT allowed.
* @TE_FRAG_SINGLE: fragmentation of the time event is allowed, but only
* the first fragment is scheduled.
* @TE_FRAG_DUAL: fragmentation of the time event is allowed, but only
* the first 2 fragments are scheduled.
* @TE_FRAG_ENDLESS: fragmentation of the time event is allowed, and any number
* of fragments are valid.
* @TE_V1_FRAG_NONE: fragmentation of the time event is NOT allowed.
* @TE_V1_FRAG_SINGLE: fragmentation of the time event is allowed, but only
* the first fragment is scheduled.
* @TE_V1_FRAG_DUAL: fragmentation of the time event is allowed, but only
* the first 2 fragments are scheduled.
* @TE_V1_FRAG_ENDLESS: fragmentation of the time event is allowed, and any
* number of fragments are valid.
*
* Other than the constant defined above, specifying a fragmentation value 'x'
* means that the event can be fragmented but only the first 'x' will be
* scheduled.
*/
enum {
TE_FRAG_NONE = 0,
TE_FRAG_SINGLE = 1,
TE_FRAG_DUAL = 2,
TE_FRAG_ENDLESS = 0xffffffff
TE_V1_FRAG_NONE = 0,
TE_V1_FRAG_SINGLE = 1,
TE_V1_FRAG_DUAL = 2,
TE_V1_FRAG_ENDLESS = 0xffffffff
};
/* Repeat the time event endlessly (until removed) */
#define TE_REPEAT_ENDLESS (0xffffffff)
/* If a Time Event has bounded repetitions, this is the maximal value */
#define TE_REPEAT_MAX_MSK (0x0fffffff)
/* If a Time Event can be fragmented, this is the max number of fragments */
#define TE_FRAG_MAX_MSK (0x0fffffff)
#define TE_V1_FRAG_MAX_MSK 0x0fffffff
/* Repeat the time event endlessly (until removed) */
#define TE_V1_REPEAT_ENDLESS 0xffffffff
/* If a Time Event has bounded repetitions, this is the maximal value */
#define TE_V1_REPEAT_MAX_MSK_V1 0x0fffffff
/* Time Event dependencies: none, on another TE, or in a specific time */
enum {
TE_V1_INDEPENDENT = 0,
TE_V1_DEP_OTHER = BIT(0),
TE_V1_DEP_TSF = BIT(1),
TE_V1_EVENT_SOCIOPATHIC = BIT(2),
}; /* MAC_EVENT_DEPENDENCY_POLICY_API_E_VER_2 */
/*
* @TE_V1_NOTIF_NONE: no notifications
* @TE_V1_NOTIF_HOST_EVENT_START: request/receive notification on event start
* @TE_V1_NOTIF_HOST_EVENT_END:request/receive notification on event end
* @TE_V1_NOTIF_INTERNAL_EVENT_START: internal FW use
* @TE_V1_NOTIF_INTERNAL_EVENT_END: internal FW use.
* @TE_V1_NOTIF_HOST_FRAG_START: request/receive notification on frag start
* @TE_V1_NOTIF_HOST_FRAG_END:request/receive notification on frag end
* @TE_V1_NOTIF_INTERNAL_FRAG_START: internal FW use.
* @TE_V1_NOTIF_INTERNAL_FRAG_END: internal FW use.
*
* Supported Time event notifications configuration.
* A notification (both event and fragment) includes a status indicating weather
* the FW was able to schedule the event or not. For fragment start/end
* notification the status is always success. There is no start/end fragment
* notification for monolithic events.
*/
enum {
TE_V1_NOTIF_NONE = 0,
TE_V1_NOTIF_HOST_EVENT_START = BIT(0),
TE_V1_NOTIF_HOST_EVENT_END = BIT(1),
TE_V1_NOTIF_INTERNAL_EVENT_START = BIT(2),
TE_V1_NOTIF_INTERNAL_EVENT_END = BIT(3),
TE_V1_NOTIF_HOST_FRAG_START = BIT(4),
TE_V1_NOTIF_HOST_FRAG_END = BIT(5),
TE_V1_NOTIF_INTERNAL_FRAG_START = BIT(6),
TE_V1_NOTIF_INTERNAL_FRAG_END = BIT(7),
}; /* MAC_EVENT_ACTION_API_E_VER_2 */
/**
* struct iwl_time_event_cmd - configuring Time Events
* struct iwl_time_event_cmd_api_v1 - configuring Time Events
* with struct MAC_TIME_EVENT_DATA_API_S_VER_1 (see also
* with version 2. determined by IWL_UCODE_TLV_FLAGS)
* ( TIME_EVENT_CMD = 0x29 )
* @id_and_color: ID and color of the relevant MAC
* @action: action to perform, one of FW_CTXT_ACTION_*
@ -578,12 +586,13 @@ enum {
* @interval_reciprocal: 2^32 / interval
* @duration: duration of event in TU
* @repeat: how many repetitions to do, can be TE_REPEAT_ENDLESS
* @dep_policy: one of TE_INDEPENDENT, TE_DEP_OTHER, TE_DEP_TSF
* @dep_policy: one of TE_V1_INDEPENDENT, TE_V1_DEP_OTHER, TE_V1_DEP_TSF
* and TE_V1_EVENT_SOCIOPATHIC
* @is_present: 0 or 1, are we present or absent during the Time Event
* @max_frags: maximal number of fragments the Time Event can be divided to
* @notify: notifications using TE_NOTIF_* (whom to notify when)
* @notify: notifications using TE_V1_NOTIF_* (whom to notify when)
*/
struct iwl_time_event_cmd {
struct iwl_time_event_cmd_v1 {
/* COMMON_INDEX_HDR_API_S_VER_1 */
__le32 id_and_color;
__le32 action;
@ -602,6 +611,123 @@ struct iwl_time_event_cmd {
__le32 notify;
} __packed; /* MAC_TIME_EVENT_CMD_API_S_VER_1 */
/* Time event - defines for command API v2 */
/*
* @TE_V2_FRAG_NONE: fragmentation of the time event is NOT allowed.
* @TE_V2_FRAG_SINGLE: fragmentation of the time event is allowed, but only
* the first fragment is scheduled.
* @TE_V2_FRAG_DUAL: fragmentation of the time event is allowed, but only
* the first 2 fragments are scheduled.
* @TE_V2_FRAG_ENDLESS: fragmentation of the time event is allowed, and any
* number of fragments are valid.
*
* Other than the constant defined above, specifying a fragmentation value 'x'
* means that the event can be fragmented but only the first 'x' will be
* scheduled.
*/
enum {
TE_V2_FRAG_NONE = 0,
TE_V2_FRAG_SINGLE = 1,
TE_V2_FRAG_DUAL = 2,
TE_V2_FRAG_MAX = 0xfe,
TE_V2_FRAG_ENDLESS = 0xff
};
/* Repeat the time event endlessly (until removed) */
#define TE_V2_REPEAT_ENDLESS 0xff
/* If a Time Event has bounded repetitions, this is the maximal value */
#define TE_V2_REPEAT_MAX 0xfe
#define TE_V2_PLACEMENT_POS 12
#define TE_V2_ABSENCE_POS 15
/* Time event policy values (for time event cmd api v2)
* A notification (both event and fragment) includes a status indicating weather
* the FW was able to schedule the event or not. For fragment start/end
* notification the status is always success. There is no start/end fragment
* notification for monolithic events.
*
* @TE_V2_DEFAULT_POLICY: independent, social, present, unoticable
* @TE_V2_NOTIF_HOST_EVENT_START: request/receive notification on event start
* @TE_V2_NOTIF_HOST_EVENT_END:request/receive notification on event end
* @TE_V2_NOTIF_INTERNAL_EVENT_START: internal FW use
* @TE_V2_NOTIF_INTERNAL_EVENT_END: internal FW use.
* @TE_V2_NOTIF_HOST_FRAG_START: request/receive notification on frag start
* @TE_V2_NOTIF_HOST_FRAG_END:request/receive notification on frag end
* @TE_V2_NOTIF_INTERNAL_FRAG_START: internal FW use.
* @TE_V2_NOTIF_INTERNAL_FRAG_END: internal FW use.
* @TE_V2_DEP_OTHER: depends on another time event
* @TE_V2_DEP_TSF: depends on a specific time
* @TE_V2_EVENT_SOCIOPATHIC: can't co-exist with other events of tha same MAC
* @TE_V2_ABSENCE: are we present or absent during the Time Event.
*/
enum {
TE_V2_DEFAULT_POLICY = 0x0,
/* notifications (event start/stop, fragment start/stop) */
TE_V2_NOTIF_HOST_EVENT_START = BIT(0),
TE_V2_NOTIF_HOST_EVENT_END = BIT(1),
TE_V2_NOTIF_INTERNAL_EVENT_START = BIT(2),
TE_V2_NOTIF_INTERNAL_EVENT_END = BIT(3),
TE_V2_NOTIF_HOST_FRAG_START = BIT(4),
TE_V2_NOTIF_HOST_FRAG_END = BIT(5),
TE_V2_NOTIF_INTERNAL_FRAG_START = BIT(6),
TE_V2_NOTIF_INTERNAL_FRAG_END = BIT(7),
TE_V2_NOTIF_MSK = 0xff,
/* placement characteristics */
TE_V2_DEP_OTHER = BIT(TE_V2_PLACEMENT_POS),
TE_V2_DEP_TSF = BIT(TE_V2_PLACEMENT_POS + 1),
TE_V2_EVENT_SOCIOPATHIC = BIT(TE_V2_PLACEMENT_POS + 2),
/* are we present or absent during the Time Event. */
TE_V2_ABSENCE = BIT(TE_V2_ABSENCE_POS),
};
/**
* struct iwl_time_event_cmd_api_v2 - configuring Time Events
* with struct MAC_TIME_EVENT_DATA_API_S_VER_2 (see also
* with version 1. determined by IWL_UCODE_TLV_FLAGS)
* ( TIME_EVENT_CMD = 0x29 )
* @id_and_color: ID and color of the relevant MAC
* @action: action to perform, one of FW_CTXT_ACTION_*
* @id: this field has two meanings, depending on the action:
* If the action is ADD, then it means the type of event to add.
* For all other actions it is the unique event ID assigned when the
* event was added by the FW.
* @apply_time: When to start the Time Event (in GP2)
* @max_delay: maximum delay to event's start (apply time), in TU
* @depends_on: the unique ID of the event we depend on (if any)
* @interval: interval between repetitions, in TU
* @duration: duration of event in TU
* @repeat: how many repetitions to do, can be TE_REPEAT_ENDLESS
* @max_frags: maximal number of fragments the Time Event can be divided to
* @policy: defines whether uCode shall notify the host or other uCode modules
* on event and/or fragment start and/or end
* using one of TE_INDEPENDENT, TE_DEP_OTHER, TE_DEP_TSF
* TE_EVENT_SOCIOPATHIC
* using TE_ABSENCE and using TE_NOTIF_*
*/
struct iwl_time_event_cmd_v2 {
/* COMMON_INDEX_HDR_API_S_VER_1 */
__le32 id_and_color;
__le32 action;
__le32 id;
/* MAC_TIME_EVENT_DATA_API_S_VER_2 */
__le32 apply_time;
__le32 max_delay;
__le32 depends_on;
__le32 interval;
__le32 duration;
u8 repeat;
u8 max_frags;
__le16 policy;
} __packed; /* MAC_TIME_EVENT_CMD_API_S_VER_2 */
/**
* struct iwl_time_event_resp - response structure to iwl_time_event_cmd
* @status: bit 0 indicates success, all others specify errors

96
drivers/net/wireless/iwlwifi/mvm/time-event.c
View File

@ -166,7 +166,7 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm,
WARN_ONCE(!le32_to_cpu(notif->status),
"Failed to schedule time event\n");
if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_END) {
if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_END) {
IWL_DEBUG_TE(mvm,
"TE ended - current time %lu, estimated end %lu\n",
jiffies, te_data->end_jiffies);
@ -189,7 +189,7 @@ static void iwl_mvm_te_handle_notif(struct iwl_mvm *mvm,
}
iwl_mvm_te_clear_data(mvm, te_data);
} else if (le32_to_cpu(notif->action) & TE_NOTIF_HOST_EVENT_START) {
} else if (le32_to_cpu(notif->action) & TE_V2_NOTIF_HOST_EVENT_START) {
te_data->running = true;
te_data->end_jiffies = jiffies +
TU_TO_JIFFIES(te_data->duration);
@ -257,10 +257,67 @@ static bool iwl_mvm_time_event_response(struct iwl_notif_wait_data *notif_wait,
return true;
}
/* used to convert from time event API v2 to v1 */
#define TE_V2_DEP_POLICY_MSK (TE_V2_DEP_OTHER | TE_V2_DEP_TSF |\
TE_V2_EVENT_SOCIOPATHIC)
static inline u16 te_v2_get_notify(__le16 policy)
{
return le16_to_cpu(policy) & TE_V2_NOTIF_MSK;
}
static inline u16 te_v2_get_dep_policy(__le16 policy)
{
return (le16_to_cpu(policy) & TE_V2_DEP_POLICY_MSK) >>
TE_V2_PLACEMENT_POS;
}
static inline u16 te_v2_get_absence(__le16 policy)
{
return (le16_to_cpu(policy) & TE_V2_ABSENCE) >> TE_V2_ABSENCE_POS;
}
static void iwl_mvm_te_v2_to_v1(const struct iwl_time_event_cmd_v2 *cmd_v2,
struct iwl_time_event_cmd_v1 *cmd_v1)
{
cmd_v1->id_and_color = cmd_v2->id_and_color;
cmd_v1->action = cmd_v2->action;
cmd_v1->id = cmd_v2->id;
cmd_v1->apply_time = cmd_v2->apply_time;
cmd_v1->max_delay = cmd_v2->max_delay;
cmd_v1->depends_on = cmd_v2->depends_on;
cmd_v1->interval = cmd_v2->interval;
cmd_v1->duration = cmd_v2->duration;
if (cmd_v2->repeat == TE_V2_REPEAT_ENDLESS)
cmd_v1->repeat = cpu_to_le32(TE_V1_REPEAT_ENDLESS);
else
cmd_v1->repeat = cpu_to_le32(cmd_v2->repeat);
cmd_v1->max_frags = cpu_to_le32(cmd_v2->max_frags);
cmd_v1->interval_reciprocal = 0; /* unused */
cmd_v1->dep_policy = cpu_to_le32(te_v2_get_dep_policy(cmd_v2->policy));
cmd_v1->is_present = cpu_to_le32(!te_v2_get_absence(cmd_v2->policy));
cmd_v1->notify = cpu_to_le32(te_v2_get_notify(cmd_v2->policy));
}
static int iwl_mvm_send_time_event_cmd(struct iwl_mvm *mvm,
const struct iwl_time_event_cmd_v2 *cmd)
{
struct iwl_time_event_cmd_v1 cmd_v1;
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2)
return iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC,
sizeof(*cmd), cmd);
iwl_mvm_te_v2_to_v1(cmd, &cmd_v1);
return iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC,
sizeof(cmd_v1), &cmd_v1);
}
static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm,
struct ieee80211_vif *vif,
struct iwl_mvm_time_event_data *te_data,
struct iwl_time_event_cmd *te_cmd)
struct iwl_time_event_cmd_v2 *te_cmd)
{
static const u8 time_event_response[] = { TIME_EVENT_CMD };
struct iwl_notification_wait wait_time_event;
@ -296,8 +353,7 @@ static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm,
ARRAY_SIZE(time_event_response),
iwl_mvm_time_event_response, te_data);
ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC,
sizeof(*te_cmd), te_cmd);
ret = iwl_mvm_send_time_event_cmd(mvm, te_cmd);
if (ret) {
IWL_ERR(mvm, "Couldn't send TIME_EVENT_CMD: %d\n", ret);
iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
@ -324,7 +380,7 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm,
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
struct iwl_time_event_cmd time_cmd = {};
struct iwl_time_event_cmd_v2 time_cmd = {};
lockdep_assert_held(&mvm->mutex);
@ -359,17 +415,14 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm,
time_cmd.apply_time =
cpu_to_le32(iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG));
time_cmd.dep_policy = TE_INDEPENDENT;
time_cmd.is_present = cpu_to_le32(1);
time_cmd.max_frags = cpu_to_le32(TE_FRAG_NONE);
time_cmd.max_frags = TE_V2_FRAG_NONE;
time_cmd.max_delay = cpu_to_le32(500);
/* TODO: why do we need to interval = bi if it is not periodic? */
time_cmd.interval = cpu_to_le32(1);
time_cmd.interval_reciprocal = cpu_to_le32(iwl_mvm_reciprocal(1));
time_cmd.duration = cpu_to_le32(duration);
time_cmd.repeat = cpu_to_le32(1);
time_cmd.notify = cpu_to_le32(TE_NOTIF_HOST_EVENT_START |
TE_NOTIF_HOST_EVENT_END);
time_cmd.repeat = 1;
time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
TE_V2_NOTIF_HOST_EVENT_END);
iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
}
@ -383,7 +436,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
struct iwl_mvm_vif *mvmvif,
struct iwl_mvm_time_event_data *te_data)
{
struct iwl_time_event_cmd time_cmd = {};
struct iwl_time_event_cmd_v2 time_cmd = {};
u32 id, uid;
int ret;
@ -420,8 +473,7 @@ void iwl_mvm_remove_time_event(struct iwl_mvm *mvm,
cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, mvmvif->color));
IWL_DEBUG_TE(mvm, "Removing TE 0x%x\n", le32_to_cpu(time_cmd.id));
ret = iwl_mvm_send_cmd_pdu(mvm, TIME_EVENT_CMD, CMD_SYNC,
sizeof(time_cmd), &time_cmd);
ret = iwl_mvm_send_time_event_cmd(mvm, &time_cmd);
if (WARN_ON(ret))
return;
}
@ -441,7 +493,7 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
struct iwl_time_event_cmd time_cmd = {};
struct iwl_time_event_cmd_v2 time_cmd = {};
lockdep_assert_held(&mvm->mutex);
if (te_data->running) {
@ -472,8 +524,6 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
}
time_cmd.apply_time = cpu_to_le32(0);
time_cmd.dep_policy = cpu_to_le32(TE_INDEPENDENT);
time_cmd.is_present = cpu_to_le32(1);
time_cmd.interval = cpu_to_le32(1);
/*
@ -482,12 +532,12 @@ int iwl_mvm_start_p2p_roc(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
* scheduled. To improve the chances of it being scheduled, allow them
* to be fragmented, and in addition allow them to be delayed.
*/
time_cmd.max_frags = cpu_to_le32(MSEC_TO_TU(duration)/20);
time_cmd.max_frags = min(MSEC_TO_TU(duration)/50, TE_V2_FRAG_ENDLESS);
time_cmd.max_delay = cpu_to_le32(MSEC_TO_TU(duration/2));
time_cmd.duration = cpu_to_le32(MSEC_TO_TU(duration));
time_cmd.repeat = cpu_to_le32(1);
time_cmd.notify = cpu_to_le32(TE_NOTIF_HOST_EVENT_START |
TE_NOTIF_HOST_EVENT_END);
time_cmd.repeat = 1;
time_cmd.policy = cpu_to_le16(TE_V2_NOTIF_HOST_EVENT_START |
TE_V2_NOTIF_HOST_EVENT_END);
return iwl_mvm_time_event_send_add(mvm, vif, te_data, &time_cmd);
}