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Commit c842db4c authored by Visweswara Tanuku's avatar Visweswara Tanuku Committed by Nirav Shah
Browse files

cnss2: Add sysfs support for configuring qtimer sync interval 



It can be used to tune the host and fw time synchronization interval
for better accuracy.

Change-Id: I0a3d8895520cec526341f278c91f153dd0bd1966
CRs-Fixed: 2787916
Signed-off-by: default avatarVisweswara Tanuku <vtanuku@codeaurora.org>
parent 5475cd6f

drivers/net/wireless/cnss2/main.c

+30 −0
Original line number Diff line number Diff line
@@ -41,6 +41,7 @@ 
#define CNSS_QMI_TIMEOUT_DEFAULT	10000

#define CNSS_BDF_TYPE_DEFAULT		CNSS_BDF_ELF

#define CNSS_TIME_SYNC_PERIOD_DEFAULT	900000

#define CNSS_MIN_TIME_SYNC_PERIOD	2000



static struct cnss_plat_data *plat_env;
@@ -2329,6 +2330,33 @@ static void cnss_unregister_bus_scale(struct cnss_plat_data *plat_priv) 
		msm_bus_scale_unregister_client(bus_bw_info->bus_client);

}



static ssize_t qtime_sync_period_show(struct device *dev,

				      struct device_attribute *attr,

				      char *buf)

{

	struct cnss_plat_data *plat_priv = dev_get_drvdata(dev);



	return scnprintf(buf, PAGE_SIZE, "%u\n",

			plat_priv->ctrl_params.time_sync_period);

}



static ssize_t qtime_sync_period_store(struct device *dev,

				       struct device_attribute *attr,

				       const char *buf, size_t count)

{

	unsigned int qtime_sync_period = 0;



	if (sscanf(buf, "%du", &qtime_sync_period) != 1) {

		cnss_pr_err("Invalid qtime sync sysfs command\n");

		return -EINVAL;

	}



	if (qtime_sync_period >= CNSS_MIN_TIME_SYNC_PERIOD)

		cnss_pci_update_qtime_sync_period(dev, qtime_sync_period);



	return count;

}



static ssize_t recovery_store(struct device *dev,

			      struct device_attribute *attr,

			      const char *buf, size_t count)
@@ -2419,11 +2447,13 @@ static ssize_t fs_ready_store(struct device *dev, 
static DEVICE_ATTR_WO(fs_ready);

static DEVICE_ATTR_WO(shutdown);

static DEVICE_ATTR_WO(recovery);

static DEVICE_ATTR_RW(qtime_sync_period);



static struct attribute *cnss_attrs[] = {

	&dev_attr_fs_ready.attr,

	&dev_attr_shutdown.attr,

	&dev_attr_recovery.attr,

	&dev_attr_qtime_sync_period.attr,

	NULL,

};

drivers/net/wireless/cnss2/main.h

+2 −1
Original line number Diff line number Diff line
@@ -479,5 +479,6 @@ int cnss_minidump_remove_region(struct cnss_plat_data *plat_priv, 
				void *va, phys_addr_t pa, size_t size);

unsigned int cnss_get_timeout(struct cnss_plat_data *plat_priv,

			      enum cnss_timeout_type);



int cnss_pci_update_qtime_sync_period(struct device *dev,

				      unsigned int qtime_sync_period);

#endif /* _CNSS_MAIN_H */

drivers/net/wireless/cnss2/pci.c

+18 −0
Original line number Diff line number Diff line
@@ -1502,6 +1502,24 @@ static void cnss_pci_stop_time_sync_update(struct cnss_pci_data *pci_priv) 
	cancel_delayed_work_sync(&pci_priv->time_sync_work);

}



int cnss_pci_update_qtime_sync_period(struct device *dev,

				      unsigned int qtime_sync_period)

{

	struct cnss_plat_data *plat_priv = dev_get_drvdata(dev);

	struct cnss_pci_data *pci_priv = plat_priv->bus_priv;



	if (!plat_priv || !pci_priv)

		return -ENODEV;



	cnss_pci_stop_time_sync_update(pci_priv);

	plat_priv->ctrl_params.time_sync_period = qtime_sync_period;

	cnss_pci_start_time_sync_update(pci_priv);

	cnss_pr_dbg("WLAN qtime sync period %u\n",

		    plat_priv->ctrl_params.time_sync_period);



	return 0;

}



int cnss_pci_call_driver_probe(struct cnss_pci_data *pci_priv)

{

	int ret = 0;