wil6210: add support for discovery mode during scan
Add support for discovery mode during scan. When discovery mode
is active, station transmits special beacons while scanning.
This can optimize the scan mainly when there is only one AP/PCP
around.
Discovery mode is implicitly used by firmware during P2P search.
Since there is currently no use case where user space has a
reason to directly control discovery mode, we expose it only
through a debugfs flag.
Also fix name confusion in the wmi_scan_type enumeration.
The type previously called WMI_LONG_SCAN is actually
WMI_ACTIVE_SCAN.
Signed-off-by: Lior David <qca_liord@qca.qualcomm.com>
Signed-off-by: Maya Erez <qca_merez@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index ddadda9..1ccf136 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -319,6 +319,7 @@
mod_timer(&wil->scan_timer, jiffies + WIL6210_SCAN_TO);
memset(&cmd, 0, sizeof(cmd));
+ cmd.cmd.scan_type = WMI_ACTIVE_SCAN;
cmd.cmd.num_channels = 0;
n = min(request->n_channels, 4U);
for (i = 0; i < n; i++) {
@@ -346,6 +347,11 @@
if (rc)
goto out;
+ if (wil->discovery_mode && cmd.cmd.scan_type == WMI_ACTIVE_SCAN) {
+ cmd.cmd.discovery_mode = 1;
+ wil_dbg_misc(wil, "active scan with discovery_mode=1\n");
+ }
+
rc = wmi_send(wil, WMI_START_SCAN_CMDID, &cmd, sizeof(cmd.cmd) +
cmd.cmd.num_channels * sizeof(cmd.cmd.channel_list[0]));
diff --git a/drivers/net/wireless/ath/wil6210/debugfs.c b/drivers/net/wireless/ath/wil6210/debugfs.c
index d80bb75..8b7e1fd 100644
--- a/drivers/net/wireless/ath/wil6210/debugfs.c
+++ b/drivers/net/wireless/ath/wil6210/debugfs.c
@@ -37,6 +37,7 @@
doff_x32 = 1,
doff_ulong = 2,
doff_io32 = 3,
+ doff_u8 = 4
};
/* offset to "wil" */
@@ -346,6 +347,10 @@
tbl[i].mode, dbg,
base + tbl[i].off);
break;
+ case doff_u8:
+ f = debugfs_create_u8(tbl[i].name, tbl[i].mode, dbg,
+ base + tbl[i].off);
+ break;
default:
f = ERR_PTR(-EINVAL);
}
@@ -1522,6 +1527,7 @@
WIL_FIELD(hw_version, S_IRUGO, doff_x32),
WIL_FIELD(recovery_count, S_IRUGO, doff_u32),
WIL_FIELD(ap_isolate, S_IRUGO, doff_u32),
+ WIL_FIELD(discovery_mode, S_IRUGO | S_IWUSR, doff_u8),
{},
};
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index 44ff040..f662f76 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -615,6 +615,7 @@
/* debugfs */
struct dentry *debug;
struct debugfs_blob_wrapper blobs[ARRAY_SIZE(fw_mapping)];
+ u8 discovery_mode;
void *platform_handle;
struct wil_platform_ops platform_ops;
diff --git a/drivers/net/wireless/ath/wil6210/wmi.h b/drivers/net/wireless/ath/wil6210/wmi.h
index 6e90e78..430a4c0 100644
--- a/drivers/net/wireless/ath/wil6210/wmi.h
+++ b/drivers/net/wireless/ath/wil6210/wmi.h
@@ -286,16 +286,17 @@
* - WMI_SCAN_COMPLETE_EVENTID
*/
enum wmi_scan_type {
- WMI_LONG_SCAN = 0,
+ WMI_ACTIVE_SCAN = 0,
WMI_SHORT_SCAN = 1,
WMI_PBC_SCAN = 2,
WMI_DIRECT_SCAN = 3,
- WMI_ACTIVE_SCAN = 4,
+ WMI_LONG_SCAN = 4,
};
struct wmi_start_scan_cmd {
u8 direct_scan_mac_addr[6];
- u8 reserved[2];
+ u8 discovery_mode;
+ u8 reserved;
__le32 home_dwell_time; /* Max duration in the home channel(ms) */
__le32 force_scan_interval; /* Time interval between scans (ms)*/
u8 scan_type; /* wmi_scan_type */