Downstream facilitates the direct programming of beacon filter tables via
SMD commands.
The purpose of beacon filters is quote:
/* When beacon filtering is enabled, firmware will
* analyze the selected beacons received during BMPS,
* and monitor any changes in the IEs as listed below.
* The format of the table is:
* - EID
* - Check for IE presence
* - Byte offset
* - Byte value
* - Bit Mask
* - Byte reference
*/
The default downstream firmware filter table looks something like this:
tBeaconFilterIe gaBcnFilterTable[12] =
{
{ WLAN_EID_DS_PARAMS, 0u, { 0u, 0u, 0u, 0u } },
{ WLAN_EID_ERP_INFO, 0u, { 0u, 0u, 248u, 0u } },
{ WLAN_EID_EDCA_PARAM_SET, 0u, { 0u, 0u, 240u, 0u } },
{ WLAN_EID_QOS_CAPA, 0u, { 0u, 0u, 240u, 0u } },
{ WLAN_EID_CHANNEL_SWITCH, 1u, { 0u, 0u, 0u, 0u } },
{ WLAN_EID_QUIET, 1u, { 0u, 0u, 0u, 0u } },
{ WLAN_EID_HT_OPERATION, 0u, { 0u, 0u, 0u, 0u } },
{ WLAN_EID_HT_OPERATION, 0u, { 1u, 0u, 248u, 0u } },
{ WLAN_EID_HT_OPERATION, 0u, { 2u, 0u, 235u, 0u } },
{ WLAN_EID_HT_OPERATION, 0u, { 5u, 0u, 253u, 0u } },
{ WLAN_EID_PWR_CONSTRAINT, 0u, { 0u, 0u, 0u, 0u } },
{ WLAN_EID_OPMODE_NOTIF, 0u, { 0u, 0u, 0u, 0u } }
};
Add in an equivalent filter set as present in the downstream Linux driver.
For now omit the beacon filter "rem" command as downstream does not have an
explicit call to that SMD command. The filter mask should only count when
we are inside BMPS anyway.
Replicating the downstream ability to program the filter table gives us
scope to add and remove elements in future. For now though this patch
makes the rote-copy of the downstream Linux beacon filter table, which we
can tweak as desired from now on.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@xxxxxxxxxx>
---
drivers/net/wireless/ath/wcn36xx/hal.h | 16 ++++
drivers/net/wireless/ath/wcn36xx/main.c | 1 +
drivers/net/wireless/ath/wcn36xx/smd.c | 104 ++++++++++++++++++++++++
drivers/net/wireless/ath/wcn36xx/smd.h | 3 +
4 files changed, 124 insertions(+)
diff --git a/drivers/net/wireless/ath/wcn36xx/hal.h b/drivers/net/wireless/ath/wcn36xx/hal.h
index e9fec110721b5..3351aaf5140df 100644
--- a/drivers/net/wireless/ath/wcn36xx/hal.h
+++ b/drivers/net/wireless/ath/wcn36xx/hal.h
@@ -3468,6 +3468,22 @@ struct beacon_filter_ie {
u8 ref;
} __packed;
+/* Downstream values for the bitmask field */
+#define WCN36XX_FILTER_CAPABILITY_MASK 0x73cf
+#define WCN36XX_FILTER_IE_DS_CHANNEL_MASK 0x00
+#define WCN36XX_FILTER_IE_ERP_FILTER_MASK 0xF8
+#define WCN36XX_FILTER_IE_EDCA_FILTER_MASK 0xF0
+#define WCN36XX_FILTER_IE_QOS_FILTER_MASK 0xF0
+#define WCN36XX_FILTER_IE_CHANNEL_SWITCH_MASK 0x00
+#define WCN36XX_FILTER_IE_HT_BYTE0_FILTER_MASK 0x00
+#define WCN36XX_FILTER_IE_HT_BYTE1_FILTER_MASK 0xF8
+#define WCN36XX_FILTER_IE_HT_BYTE2_FILTER_MASK 0xEB
+#define WCN36XX_FILTER_IE_HT_BYTE5_FILTER_MASK 0xFD
+#define WCN36XX_FILTER_IE_OPMODE_NOTIF_MASK 0x00
+#define WCN36XX_FILTER_IE_VHTOP_CHWIDTH_MASK 0xFC
+#define WCN36XX_FILTER_IE_RSN_MASK 0x00
+#define WCN36XX_FILTER_IE_VENDOR_MASK 0x00
+
