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qcacld-3.0: Add SAR unsolicited timer

Browse source 
Add SAR unsolicited timer to the driver. This timer starts
on every data tx (if not already running) and stops on
command QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS.
If this timer expires, a vendor event
QCA_NL80211_VENDOR_SUBCMD_GET_SAR_LIMITS_EVENT is sent to the
user space to issue the QCA_NL80211_VENDOR_SUBCMD_SET_SAR_LIMITS
command.

Change-Id: Ic30e5ac606d2b6b0cbc9209174adcd5213eac08e
CRs-Fixed: 2615510
This commit is contained in:
Ashish Kumar Dhanotiya 2020-01-20 14:42:02 +05:30 • committed by nshrivas
commit 3d5a742d5c
6 changed files with 92 additions and 0 deletions
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2
core/hdd/inc/wlan_hdd_main.h
View file

@ -1885,7 +1885,9 @@ struct hdd_context {
struct sar_limit_cmd_params *sar_cmd_params;
#ifdef SAR_SAFETY_FEATURE
qdf_mc_timer_t sar_safety_timer;
qdf_mc_timer_t sar_safety_unsolicited_timer;
#endif
qdf_time_t runtime_resume_start_time_stamp;
qdf_time_t runtime_suspend_done_time_stamp;
#if defined(CLD_PM_QOS) && \

5
core/hdd/src/wlan_hdd_cfg80211.c
View file

@ -1580,6 +1580,11 @@ static const struct nl80211_vendor_cmd_info wlan_hdd_cfg80211_vendor_events[] =
.vendor_id = QCA_NL80211_VENDOR_ID,
.subcmd = QCA_NL80211_VENDOR_SUBCMD_OEM_DATA,
},
[QCA_NL80211_VENDOR_SUBCMD_REQUEST_SAR_LIMITS_INDEX] = {
.vendor_id = QCA_NL80211_VENDOR_ID,
.subcmd = QCA_NL80211_VENDOR_SUBCMD_GET_SAR_LIMITS_EVENT,
},
};
/**

64
core/hdd/src/wlan_hdd_sar_limits.c
View file

@ -384,6 +384,40 @@ config_sar_failed:
}
}
static void hdd_send_sar_unsolicited_event(struct hdd_context *hdd_ctx)
{
struct sk_buff *vendor_event;
uint32_t len;
if (!hdd_ctx) {
hdd_err_rl("hdd context is null");
return;
}
len = NLMSG_HDRLEN;
vendor_event =
cfg80211_vendor_event_alloc(
hdd_ctx->wiphy, NULL, len,
QCA_NL80211_VENDOR_SUBCMD_REQUEST_SAR_LIMITS_INDEX,
GFP_KERNEL);
if (!vendor_event) {
hdd_err("cfg80211_vendor_event_alloc failed");
return;
}
cfg80211_vendor_event(vendor_event, GFP_KERNEL);
}
static void hdd_sar_unsolicited_timer_cb(void *user_data)
{
struct hdd_context *hdd_ctx = (struct hdd_context *)user_data;
hdd_nofl_debug("Sar unsolicited timer expired");
hdd_send_sar_unsolicited_event(hdd_ctx);
}
static void hdd_sar_safety_timer_cb(void *user_data)
{
struct hdd_context *hdd_ctx = (struct hdd_context *)user_data;
@ -392,6 +426,19 @@ static void hdd_sar_safety_timer_cb(void *user_data)
hdd_configure_sar_index(hdd_ctx, hdd_ctx->config->sar_safety_index);
}
void wlan_hdd_sar_unsolicited_timer_start(struct hdd_context *hdd_ctx)
{
if (!hdd_ctx->config->enable_sar_safety)
return;
if (QDF_TIMER_STATE_RUNNING !=
qdf_mc_timer_get_current_state(
&hdd_ctx->sar_safety_unsolicited_timer))
qdf_mc_timer_start(
&hdd_ctx->sar_safety_unsolicited_timer,
hdd_ctx->config->sar_safety_unsolicited_timeout);
}
void wlan_hdd_sar_timers_reset(struct hdd_context *hdd_ctx)
{
if (!hdd_ctx->config->enable_sar_safety)
@ -406,6 +453,11 @@ void wlan_hdd_sar_timers_reset(struct hdd_context *hdd_ctx)
qdf_mc_timer_start(&hdd_ctx->sar_safety_timer,
hdd_ctx->config->sar_safety_timeout);
if (QDF_TIMER_STATE_RUNNING ==
qdf_mc_timer_get_current_state(
&hdd_ctx->sar_safety_unsolicited_timer))
qdf_mc_timer_stop(&hdd_ctx->sar_safety_unsolicited_timer);
}
void wlan_hdd_sar_timers_init(struct hdd_context *hdd_ctx)
@ -415,6 +467,10 @@ void wlan_hdd_sar_timers_init(struct hdd_context *hdd_ctx)
qdf_mc_timer_init(&hdd_ctx->sar_safety_timer, QDF_TIMER_TYPE_SW,
hdd_sar_safety_timer_cb, hdd_ctx);
qdf_mc_timer_init(&hdd_ctx->sar_safety_unsolicited_timer,
QDF_TIMER_TYPE_SW,
hdd_sar_unsolicited_timer_cb, hdd_ctx);
}
void wlan_hdd_sar_timers_deinit(struct hdd_context *hdd_ctx)
@ -427,6 +483,14 @@ void wlan_hdd_sar_timers_deinit(struct hdd_context *hdd_ctx)
qdf_mc_timer_stop(&hdd_ctx->sar_safety_timer);
qdf_mc_timer_destroy(&hdd_ctx->sar_safety_timer);
if (QDF_TIMER_STATE_RUNNING ==
qdf_mc_timer_get_current_state(
&hdd_ctx->sar_safety_unsolicited_timer))
qdf_mc_timer_stop(&hdd_ctx->sar_safety_unsolicited_timer);
qdf_mc_timer_destroy(&hdd_ctx->sar_safety_unsolicited_timer);
}
#endif

15
core/hdd/src/wlan_hdd_sar_limits.h
View file

@ -28,6 +28,16 @@
#ifdef FEATURE_SAR_LIMITS
#ifdef SAR_SAFETY_FEATURE
/**
* wlan_hdd_sar_unsolicited_timer_start() - Start SAR unsolicited timer
* @hdd_ctx: Pointer to HDD context
*
* This function checks the state of the sar unsolicited timer, if the
* sar_unsolicited_timer is not runnig, it starts the timer.
*
* Return: None
*/
void wlan_hdd_sar_unsolicited_timer_start(struct hdd_context *hdd_ctx);
/**
* wlan_hdd_sar_safety_timer_reset() - Reset SAR sefety timer
@ -72,6 +82,11 @@ void wlan_hdd_sar_timers_deinit(struct hdd_context *hdd_ctx);
void hdd_configure_sar_index(struct hdd_context *hdd_ctx, uint32_t sar_index);
#else
static inline void wlan_hdd_sar_unsolicited_timer_start(
struct hdd_context *hdd_ctx)
{
}
static inline void wlan_hdd_sar_timers_reset(struct hdd_context *hdd_ctx)
{
}

3
core/hdd/src/wlan_hdd_softap_tx_rx.c
View file

@ -46,6 +46,7 @@
#include <wma_types.h>
#include "wlan_hdd_sta_info.h"
#include "ol_defines.h"
#include <wlan_hdd_sar_limits.h>
/* Preprocessor definitions and constants */
#undef QCA_HDD_SAP_DUMP_SK_BUFF
@ -606,6 +607,8 @@ static void __hdd_softap_hard_start_xmit(struct sk_buff *skb,
}
netif_trans_update(dev);
wlan_hdd_sar_unsolicited_timer_start(hdd_ctx);
return;
drop_pkt_and_release_skb:

3
core/hdd/src/wlan_hdd_tx_rx.c
View file

@ -67,6 +67,7 @@
#include "wlan_hdd_object_manager.h"
#include "nan_public_structs.h"
#include "nan_ucfg_api.h"
#include <wlan_hdd_sar_limits.h>
#if defined(QCA_LL_TX_FLOW_CONTROL_V2) || defined(QCA_LL_PDEV_TX_FLOW_CONTROL)
/*
@ -1143,6 +1144,8 @@ static void __hdd_hard_start_xmit(struct sk_buff *skb,
netif_trans_update(dev);
wlan_hdd_sar_unsolicited_timer_start(hdd_ctx);
return;
drop_pkt_and_release_skb: