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wcn36xx: Add support for FTM WLAN

PATCH New Ramon Fried 1 participant 1 message Mar 12, 2018

Subsystems (2)
Arm STM32 Qualcomm WCN36XX wireless driver
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Ramon Fried

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PATCH v2 1/1 wcn36xx: Add support for FTM WLAN

From: Eyal Ilsar <[email protected]>

Introduce infrastructure for supporting Factory Test Mode (FTM) of the wireless LAN subsystem. In order for the user space to access the firmware in test mode the relevant netlink channel needs to be exposed from the kernel driver.

The above is achieved as follows:
1) Register wcn36xx driver to testmode callback from netlink
2) Add testmode callback implementation to handle incoming FTM commands
3) Add FTM command packet structure
4) Add handling for GET_BUILD_RELEASE_NUMBER (msgid=0x32A2)
5) Add generic handling for all PTT_MSG packets

Signed-off-by Eyal Ilsar <[email protected]>
Signed-off-by Ramon Fried <[email protected]>

---
v2: * changed commit msg
* remove unnecessary whitespace
* kept the stop/start as the messages do arrive, but changed the documentation to explain the purpose.

 drivers/net/wireless/ath/wcn36xx/Makefile     |   2 +
 drivers/net/wireless/ath/wcn36xx/hal.h        |  16 +++
 drivers/net/wireless/ath/wcn36xx/main.c       |   3 +
 drivers/net/wireless/ath/wcn36xx/smd.c        |  74 +++++++++++
 drivers/net/wireless/ath/wcn36xx/smd.h        |   4 +
 drivers/net/wireless/ath/wcn36xx/testmode.c   | 173 ++++++++++++++++++++++++++
 drivers/net/wireless/ath/wcn36xx/testmode.h   |  46 +++++++
 drivers/net/wireless/ath/wcn36xx/testmode_i.h |  45 +++++++
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h    |   2 +
 9 files changed, 365 insertions(+)
 create mode 100644 drivers/net/wireless/ath/wcn36xx/testmode.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/testmode.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/testmode_i.h
drivers/net/wireless/ath/wcn36xx/Makefile +2 -0
index 3b09435104eb..582049f65735 100644
@@ -6,3 +6,5 @@ wcn36xx-y +=   main.o \
                smd.o \
                pmc.o \
                debug.o
+
+wcn36xx-$(CONFIG_NL80211_TESTMODE) += testmode.o
drivers/net/wireless/ath/wcn36xx/hal.h +16 -0
index 182963522941..8491b3cb3206 100644
@@ -2230,6 +2230,22 @@ struct wcn36xx_hal_switch_channel_rsp_msg {
 
 } __packed;
 
+struct wcn36xx_hal_process_ptt_msg_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Actual FTM Command body */
+	u8 ptt_msg[0];
+} __packed;
+
+struct wcn36xx_hal_process_ptt_msg_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* FTM Command response status */
+	u32 ptt_msg_resp_status;
+	/* Actual FTM Command body */
+	u8 ptt_msg[0];
+} __packed;
+
 struct update_edca_params_req_msg {
 	struct wcn36xx_hal_msg_header header;
drivers/net/wireless/ath/wcn36xx/main.c +3 -0
index 8c2654075eb8..6b73da6f7fde 100644
@@ -26,6 +26,7 @@
 #include <linux/soc/qcom/smem_state.h>
 #include <linux/soc/qcom/wcnss_ctrl.h>
 #include "wcn36xx.h"
+#include "testmode.h"
 
 unsigned int wcn36xx_dbg_mask;
 module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);

@@ -1119,6 +1120,8 @@ static const struct ieee80211_ops wcn36xx_ops = {
 	.sta_add		= wcn36xx_sta_add,
 	.sta_remove		= wcn36xx_sta_remove,
 	.ampdu_action		= wcn36xx_ampdu_action,
+
+	CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
 };
 
 static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
drivers/net/wireless/ath/wcn36xx/smd.c +74 -0

104 lines not on this page · raw message

drivers/net/wireless/ath/wcn36xx/smd.h +4 -0
index 8076edf40ac8..6d83cc99dc25 100644
@@ -86,6 +86,10 @@ int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 			    u16 p2p_off);
 int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
 			       struct ieee80211_vif *vif, int ch);
+int wcn36xx_smd_process_ptt_msg(struct wcn36xx *wcn,
+			    struct ieee80211_vif *vif,
+				void *ptt_msg, size_t len,
+				void **ptt_rsp_msg);
 int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
 				      struct ieee80211_vif *vif,
 				      struct sk_buff *skb);
drivers/net/wireless/ath/wcn36xx/testmode.c new file +173 -0

173 lines not on this page · raw message

drivers/net/wireless/ath/wcn36xx/testmode.h new file +46 -0

46 lines not on this page · raw message

drivers/net/wireless/ath/wcn36xx/testmode_i.h new file +45 -0

45 lines not on this page · raw message

drivers/net/wireless/ath/wcn36xx/wcn36xx.h +2 -0
index 81017e6703b4..6a6c49835a13 100644
@@ -56,6 +56,8 @@ enum wcn36xx_debug_mask {
 	WCN36XX_DBG_BEACON_DUMP	= 0x00001000,
 	WCN36XX_DBG_PMC		= 0x00002000,
 	WCN36XX_DBG_PMC_DUMP	= 0x00004000,
+	WCN36XX_DBG_TESTMODE		= 0x00008000,
+	WCN36XX_DBG_TESTMODE_DUMP	= 0x00010000,
 	WCN36XX_DBG_ANY		= 0xffffffff,
 };
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