From ae4b08e40023450f7d54d216cf68ee9703270a57 Mon Sep 17 00:00:00 2001
From: Howard Hsu <howard-yh.hsu@mediatek.com>
Date: Mon, 30 May 2022 16:31:34 +0800
Subject: [PATCH 05/25] hostapd: mtk: Support EDCCA hostapd configuration

edcca_enable and edcca_compensation and implement edcca related handlers.
---
 hostapd/config_file.c             |  32 ++++++
 hostapd/ctrl_iface.c              | 125 ++++++++++++++++++++++
 src/ap/ap_config.c                |   4 +
 src/ap/ap_config.h                |  29 ++++++
 src/ap/ap_drv_ops.c               |  24 +++++
 src/ap/ap_drv_ops.h               |   5 +-
 src/ap/hostapd.c                  |   7 ++
 src/common/mtk_vendor.h           |  19 ++--
 src/drivers/driver.h              |   4 +
 src/drivers/driver_nl80211.c      | 165 ++++++++++++++++++++++++++++++
 src/drivers/driver_nl80211.h      |   1 +
 src/drivers/driver_nl80211_capa.c |   7 ++
 12 files changed, 415 insertions(+), 7 deletions(-)

diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index 24018f7..b5024cc 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -4755,6 +4755,38 @@ static int hostapd_config_fill(struct hostapd_config *conf,
 	} else if (os_strcmp(buf, "eht_mu_beamformer") == 0) {
 		conf->eht_phy_capab.mu_beamformer = atoi(pos);
 #endif /* CONFIG_IEEE80211BE */
+	} else if (os_strcmp(buf, "edcca_threshold") == 0) {
+		if (hostapd_parse_intlist(&conf->edcca_threshold, pos) ||
+		    conf->edcca_threshold[0] < EDCCA_MIN_CONFIG_THRES ||
+		    conf->edcca_threshold[0] > EDCCA_MAX_CONFIG_THRES ||
+		    conf->edcca_threshold[1] < EDCCA_MIN_CONFIG_THRES ||
+		    conf->edcca_threshold[1] > EDCCA_MAX_CONFIG_THRES ||
+		    conf->edcca_threshold[2] < EDCCA_MIN_CONFIG_THRES ||
+		    conf->edcca_threshold[2] > EDCCA_MAX_CONFIG_THRES) {
+			wpa_printf(MSG_ERROR, "Line %d: invalid edcca threshold",
+				   line);
+			return 1;
+		}
+	} else if (os_strcmp(buf, "edcca_enable") == 0) {
+		int mode = atoi(pos);
+		if (mode < EDCCA_MODE_FORCE_DISABLE || mode > EDCCA_MODE_AUTO) {
+			wpa_printf(MSG_ERROR, "Line %d: Invalid edcca_enable %d;"
+				  " allowed value 0 (Force Disable) or 1(Auto) ",
+				   line, mode);
+			return 1;
+		}
+		conf->edcca_enable = (u8) mode;
+	} else if (os_strcmp(buf, "edcca_compensation") == 0) {
+		int val = atoi(pos);
+		if (val < EDCCA_MIN_COMPENSATION ||
+		    val > EDCCA_MAX_COMPENSATION) {
+			wpa_printf(MSG_ERROR, "Line %d: Invalid compensation"
+				   " value %d; allowed value %d ~ %d.",
+				   line, val, EDCCA_MIN_COMPENSATION,
+				   EDCCA_MAX_COMPENSATION);
+			return 1;
+		}
+		conf->edcca_compensation = (s8) val;
 	} else {
 		wpa_printf(MSG_ERROR,
 			   "Line %d: unknown configuration item '%s'",
diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index bb8c74f..9c70d54 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -598,6 +598,19 @@ static const char * pbc_status_str(enum pbc_status status)
 }
 
 
+static const char * edcca_mode_str(enum edcca_mode status)
+{
+	switch (status) {
+		case EDCCA_MODE_FORCE_DISABLE:
+			return "Force Disable";
+		case EDCCA_MODE_AUTO:
+			return "Auto";
+		default:
+			return "Unknown";
+	}
+}
+
+
 static int hostapd_ctrl_iface_wps_get_status(struct hostapd_data *hapd,
 					     char *buf, size_t buflen)
 {
@@ -3322,6 +3335,112 @@ static int hostapd_ctrl_iface_driver_cmd(struct hostapd_data *hapd, char *cmd,
 #endif /* ANDROID */
 
 
+static int
+hostapd_ctrl_iface_set_edcca(struct hostapd_data *hapd, char *cmd,
+					 char *buf, size_t buflen)
+{
+	char *pos, *config, *value;
+	config = cmd;
+	pos = os_strchr(config, ' ');
+	if (pos == NULL)
+		return -1;
+	*pos++ = '\0';
+
+	if(pos == NULL)
+		return -1;
+	value = pos;
+
+	if (os_strcmp(config, "enable") == 0) {
+		int mode = atoi(value);
+		if (mode < EDCCA_MODE_FORCE_DISABLE || mode > EDCCA_MODE_AUTO) {
+			wpa_printf(MSG_ERROR, "Invalid value for edcca enable");
+			return -1;
+		}
+		hapd->iconf->edcca_enable = (u8) mode;
+		if (hostapd_drv_configure_edcca_enable(hapd) != 0)
+			return -1;
+	} else if (os_strcmp(config, "compensation") == 0) {
+		int compensation = atoi(value);
+		if (compensation < EDCCA_MIN_COMPENSATION ||
+		    compensation > EDCCA_MAX_COMPENSATION) {
+			wpa_printf(MSG_ERROR, "Invalid value for edcca compensation");
+			return -1;
+		}
+		hapd->iconf->edcca_compensation = (s8) compensation;
+		if (hostapd_drv_configure_edcca_enable(hapd) != 0)
+			return -1;
+	} else if (os_strcmp(config, "threshold") == 0) {
+		char *thres_value;
+		thres_value = os_strchr(value, ':');
+		if (thres_value == NULL)
+			return -1;
+		*thres_value++ = '\0';
+
+		if(thres_value == NULL)
+			return -1;
+		int bw_idx= atoi(value);
+		int threshold = atoi(thres_value);
+
+		if (bw_idx < EDCCA_BW_20 || bw_idx > EDCCA_BW_80) {
+			wpa_printf(MSG_ERROR,
+				   "Unsupported Bandwidth idx %d for SET_EDCCA",
+				   bw_idx);
+			return -1;
+		}
+		if (threshold < EDCCA_MIN_CONFIG_THRES ||
+		    threshold > EDCCA_MAX_CONFIG_THRES) {
+			wpa_printf(MSG_ERROR,
+				   "Unsupported threshold %d for SET_EDCCA",
+				   threshold);
+			return -1;
+		}
+
+		int threshold_arr[EDCCA_MAX_BW_NUM];
+		/* 0x7f means keep the origival value in firmware */
+		os_memset(threshold_arr, 0x7f, sizeof(threshold_arr));
+		threshold_arr[bw_idx] = threshold;
+
+		if (hostapd_drv_configure_edcca_threshold(hapd, threshold_arr) != 0)
+			return -1;
+	} else {
+		wpa_printf(MSG_ERROR,
+			"Unsupported parameter %s for SET_EDCCA", config);
+		return -1;
+	}
+	return os_snprintf(buf, buflen, "OK\n");
+}
+
+
+static int
+hostapd_ctrl_iface_get_edcca(struct hostapd_data *hapd, char *cmd, char *buf,
+			     size_t buflen)
+{
+	char *pos, *end;
+
+	pos = buf;
+	end = buf + buflen;
+	u8 value[EDCCA_MAX_BW_NUM] = {0};
+
+	if (os_strcmp(cmd, "enable") == 0) {
+		return os_snprintf(pos, end - pos, "Enable: %s\n",
+				   edcca_mode_str(hapd->iconf->edcca_enable));
+	} else if (os_strcmp(cmd, "compensation") == 0) {
+		return os_snprintf(pos, end - pos, "Compensation: %d\n",
+				  hapd->iconf->edcca_compensation);
+	} else if (os_strcmp(cmd, "threshold") == 0) {
+		if (hostapd_drv_get_edcca(hapd, EDCCA_CTRL_GET_THRES, &value) != 0)
+			return -1;
+		return os_snprintf(pos, end - pos,
+				   "Threshold BW20: 0x%x, BW40: 0x%x, BW80: 0x%x\n",
+				   value[0], value[1], value[2]);
+	} else {
+		wpa_printf(MSG_ERROR,
+			"Unsupported parameter %s for GET_EDCCA", cmd);
+		return -1;
+	}
+}
+
+
 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
 					      char *buf, char *reply,
 					      int reply_size,
@@ -3868,6 +3987,12 @@ static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
 		reply_len = hostapd_ctrl_iface_driver_cmd(hapd, buf + 7, reply,
 							  reply_size);
 #endif /* ANDROID */
+	} else if (os_strncmp(buf, "SET_EDCCA ", 10) == 0) {
+		reply_len = hostapd_ctrl_iface_set_edcca(hapd, buf+10, reply,
+							  reply_size);
+	} else if (os_strncmp(buf, "GET_EDCCA ", 10) == 0) {
+		reply_len = hostapd_ctrl_iface_get_edcca(hapd, buf+10, reply,
+							  reply_size);
 	} else {
 		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
 		reply_len = 16;
diff --git a/src/ap/ap_config.c b/src/ap/ap_config.c
index 4a20eb4..344585a 100644
--- a/src/ap/ap_config.c
+++ b/src/ap/ap_config.c
@@ -294,6 +294,9 @@ struct hostapd_config * hostapd_config_defaults(void)
 	conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
 #endif /* CONFIG_AIRTIME_POLICY */
 
+	conf->edcca_enable = EDCCA_MODE_AUTO;
+	conf->edcca_compensation = EDCCA_DEFAULT_COMPENSATION;
+
 	return conf;
 }
 
@@ -1007,6 +1010,7 @@ void hostapd_config_free(struct hostapd_config *conf)
 #ifdef CONFIG_ACS
 	os_free(conf->acs_chan_bias);
 #endif /* CONFIG_ACS */
+	os_free(conf->edcca_threshold);
 	wpabuf_free(conf->lci);
 	wpabuf_free(conf->civic);
 
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index a875632..4ac4699 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -1154,8 +1154,37 @@ struct hostapd_config {
 #define CH_SWITCH_EHT_ENABLED BIT(0)
 #define CH_SWITCH_EHT_DISABLED BIT(1)
 	unsigned int ch_switch_eht_config;
+	u8 edcca_enable;
+	s8 edcca_compensation;
+	int *edcca_threshold;
 };
 
+enum edcca_mode {
+	EDCCA_MODE_FORCE_DISABLE = 0,
+	EDCCA_MODE_AUTO = 1,
+};
+
+enum edcca_bw_id {
+	EDCCA_BW_20 = 0,
+	EDCCA_BW_40,
+	EDCCA_BW_80,
+	EDCCA_MAX_BW_NUM,
+};
+
+enum mtk_vendor_attr_edcca_ctrl_mode {
+	EDCCA_CTRL_SET_EN = 0,
+	EDCCA_CTRL_SET_THRES,
+	EDCCA_CTRL_GET_EN,
+	EDCCA_CTRL_GET_THRES,
+	EDCCA_CTRL_NUM,
+};
+
+#define EDCCA_DEFAULT_COMPENSATION -6
+#define EDCCA_MIN_COMPENSATION -126
+#define EDCCA_MAX_COMPENSATION 126
+#define EDCCA_MIN_CONFIG_THRES -126
+#define EDCCA_MAX_CONFIG_THRES 0
+
 
 static inline enum oper_chan_width
 hostapd_get_oper_chwidth(struct hostapd_config *conf)
diff --git a/src/ap/ap_drv_ops.c b/src/ap/ap_drv_ops.c
index 0c7aee2..25e967d 100644
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -1015,3 +1015,27 @@ int hostapd_drv_dpp_listen(struct hostapd_data *hapd, bool enable)
 		return 0;
 	return hapd->driver->dpp_listen(hapd->drv_priv, enable);
 }
+
+int hostapd_drv_configure_edcca_enable(struct hostapd_data *hapd)
+{
+	if (!hapd->driver || !hapd->driver->configure_edcca_enable)
+		return 0;
+	return hapd->driver->configure_edcca_enable(hapd->drv_priv,
+				hapd->iconf->edcca_enable,
+				hapd->iconf->edcca_compensation);
+}
+
+int hostapd_drv_configure_edcca_threshold(struct hostapd_data *hapd,
+					  const int *threshold)
+{
+	if (!hapd->driver || !hapd->driver->configure_edcca_threshold)
+		return 0;
+	return hapd->driver->configure_edcca_threshold(hapd->drv_priv, threshold);
+}
+
+int hostapd_drv_get_edcca(struct hostapd_data *hapd, const u8 mode, u8 *value)
+{
+	if (!hapd->driver || !hapd->driver->get_edcca)
+		return 0;
+	return hapd->driver->get_edcca(hapd->drv_priv, mode, value);
+}
diff --git a/src/ap/ap_drv_ops.h b/src/ap/ap_drv_ops.h
index b4fb766..70a99f4 100644
--- a/src/ap/ap_drv_ops.h
+++ b/src/ap/ap_drv_ops.h
@@ -138,7 +138,10 @@ int hostapd_drv_do_acs(struct hostapd_data *hapd);
 int hostapd_drv_update_dh_ie(struct hostapd_data *hapd, const u8 *peer,
 			     u16 reason_code, const u8 *ie, size_t ielen);
 int hostapd_drv_dpp_listen(struct hostapd_data *hapd, bool enable);
-
+int hostapd_drv_configure_edcca_enable(struct hostapd_data *hapd);
+int hostapd_drv_configure_edcca_threshold(struct hostapd_data *hapd,
+					  const int *threshold);
+int hostapd_drv_get_edcca(struct hostapd_data *hapd, const u8 mode, u8 *value);
 
 #include "drivers/driver.h"
 
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 65487ac..3bb38fe 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -2296,6 +2296,13 @@ dfs_offload:
 	}
 #endif /* CONFIG_MESH */
 
+	if (hostapd_drv_configure_edcca_enable(hapd) < 0)
+		goto fail;
+
+	if (hostapd_drv_configure_edcca_threshold(hapd,
+						  hapd->iconf->edcca_threshold) < 0)
+		goto fail;
+
 	wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
 		   iface->bss[0]->conf->iface);
 	if (iface->interfaces && iface->interfaces->terminate_on_error > 0)
diff --git a/src/common/mtk_vendor.h b/src/common/mtk_vendor.h
index 528387f..7056126 100644
--- a/src/common/mtk_vendor.h
+++ b/src/common/mtk_vendor.h
@@ -29,14 +29,21 @@ enum mtk_vendor_attr_edcca_ctrl {
 		NUM_MTK_VENDOR_ATTRS_EDCCA_CTRL - 1
 };
 
-enum mtk_vendor_attr_edcca_ctrl_mode {
-	EDCCA_CTRL_SET_EN = 0,
-	EDCCA_CTRL_SET_THERS,
-	EDCCA_CTRL_GET_EN,
-	EDCCA_CTRL_GET_THERS,
-	EDCCA_CTRL_NUM,
+enum mtk_vendor_attr_edcca_dump {
+	MTK_VENDOR_ATTR_EDCCA_DUMP_UNSPEC = 0,
+
+	MTK_VENDOR_ATTR_EDCCA_DUMP_MODE,
+	MTK_VENDOR_ATTR_EDCCA_DUMP_PRI20_VAL,
+	MTK_VENDOR_ATTR_EDCCA_DUMP_SEC40_VAL,
+	MTK_VENDOR_ATTR_EDCCA_DUMP_SEC80_VAL,
+
+	/* keep last */
+	NUM_MTK_VENDOR_ATTRS_EDCCA_DUMP,
+	MTK_VENDOR_ATTR_EDCCA_DUMP_MAX =
+		NUM_MTK_VENDOR_ATTRS_EDCCA_DUMP - 1
 };
 
+
 static struct nla_policy edcca_ctrl_policy[NUM_MTK_VENDOR_ATTRS_EDCCA_CTRL] = {
 	[MTK_VENDOR_ATTR_EDCCA_CTRL_MODE] = { .type = NLA_U8 },
 	[MTK_VENDOR_ATTR_EDCCA_CTRL_PRI20_VAL] = { .type = NLA_U8 },
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 1d2b1b2..3559974 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -4676,6 +4676,10 @@ struct wpa_driver_ops {
 			      const u8 *match, size_t match_len,
 			      bool multicast);
 #endif /* CONFIG_TESTING_OPTIONS */
+	int (*configure_edcca_enable)(void *priv, const u8 edcca_enable,
+				  const s8 edcca_compensation);
+	int (*configure_edcca_threshold)(void *priv, const int *threshold);
+	int (*get_edcca)(void *priv, const u8 mode, u8 *value);
 };
 
 /**
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index c695263..6d4a4db 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -35,6 +35,8 @@
 #include "radiotap_iter.h"
 #include "rfkill.h"
 #include "driver_nl80211.h"
+#include "common/mtk_vendor.h"
+#include "ap/ap_config.h"
 
 
 #ifndef NETLINK_CAP_ACK
@@ -12368,6 +12370,165 @@ static int testing_nl80211_radio_disable(void *priv, int disabled)
 
 #endif /* CONFIG_TESTING_OPTIONS */
 
+static int nl80211_configure_edcca_enable(void *priv,
+					  const u8 edcca_enable,
+					  const s8 edcca_compensation)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	struct nlattr *data;
+	int ret;
+
+	if (!drv->mtk_edcca_vendor_cmd_avail) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Driver does not support setting EDCCA enable");
+		return 0;
+	}
+
+	if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_MTK) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
+			MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL) ||
+	    !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_MODE, EDCCA_CTRL_SET_EN) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_PRI20_VAL, edcca_enable) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_COMPENSATE,
+		edcca_compensation)) {
+		wpa_printf (MSG_ERROR, "Prepare nl80211 msg fail");
+		nlmsg_free(msg);
+		return -ENOBUFS;
+	}
+	nla_nest_end(msg, data);
+	ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_ERROR, "Failed to configure EDCCA enable. ret=%d (%s) ",
+			   ret, strerror(-ret));
+	}
+	return ret;
+}
+
+static int nl80211_configure_edcca_threshold(void *priv, const int *threshold)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	struct nlattr *data;
+	int ret;
+
+	if (!drv->mtk_edcca_vendor_cmd_avail) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Driver does not support setting EDCCA threshold");
+		return 0;
+	}
+
+	if (!threshold) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Input EDCCA threshold is empty!");
+		return 0;
+	}
+
+	if (!(msg = nl80211_drv_msg(drv, 0, NL80211_CMD_VENDOR)) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_MTK) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
+			MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL) ||
+	    !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_MODE, EDCCA_CTRL_SET_THRES) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_PRI20_VAL, threshold[0] & 0xff) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_SEC40_VAL, threshold[1] & 0xff) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_SEC80_VAL, threshold[2] & 0xff)) {
+		wpa_printf (MSG_ERROR, "Prepare nl80211 msg fail");
+		nlmsg_free(msg);
+		return -ENOBUFS;
+	}
+	nla_nest_end(msg, data);
+	ret = send_and_recv_msgs(drv, msg, NULL, NULL, NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_ERROR, "Failed to configure EDCCA threshold. ret=%d (%s) ",
+			   ret, strerror(-ret));
+	}
+	return ret;
+}
+
+
+static int edcca_info_handler(struct nl_msg *msg, void *arg)
+{
+	u8 *info = (u8*) arg;
+	struct nlattr *tb[NL80211_ATTR_MAX + 1];
+	struct nlattr *tb_vendor[MTK_VENDOR_ATTR_EDCCA_DUMP_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *nl_vend, *attr;
+
+	nla_parse(tb, NL80211_ATTR_MAX, genlmsg_attrdata(gnlh, 0),
+		  genlmsg_attrlen(gnlh, 0), NULL);
+
+	nl_vend = tb[NL80211_ATTR_VENDOR_DATA];
+	if (!nl_vend)
+		return NL_SKIP;
+
+	nla_parse(tb_vendor, MTK_VENDOR_ATTR_EDCCA_DUMP_MAX,
+		  nla_data(nl_vend), nla_len(nl_vend), NULL);
+
+	attr = tb_vendor[MTK_VENDOR_ATTR_EDCCA_DUMP_PRI20_VAL];
+	if (!attr) {
+		wpa_printf(MSG_ERROR, "nl80211: MTK_VENDOR_ATTR_EDCCA_DUMP_PRI20_VAL");
+		return NL_SKIP;
+	}
+
+	*info++ = nla_get_u8(attr);
+
+	attr = tb_vendor[MTK_VENDOR_ATTR_EDCCA_DUMP_SEC40_VAL];
+	if (!attr) {
+		wpa_printf(MSG_ERROR, "nl80211: MTK_VENDOR_ATTR_EDCCA_DUMP_SEC40_VAL");
+		return NL_SKIP;
+	}
+
+	*info++ = nla_get_u8(attr);
+
+	attr = tb_vendor[MTK_VENDOR_ATTR_EDCCA_DUMP_SEC80_VAL];
+	if (!attr) {
+		wpa_printf(MSG_ERROR, "nl80211: MTK_VENDOR_ATTR_EDCCA_DUMP_SEC80_VAL");
+		return NL_SKIP;
+	}
+
+	*info = nla_get_u8(attr);
+	return NL_SKIP;
+}
+
+
+static int nl80211_get_edcca(void *priv, const u8 mode, u8 *value)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	struct nlattr *data;
+	int ret;
+
+	if (!drv->mtk_edcca_vendor_cmd_avail) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Driver does not support setting EDCCA threshold");
+		return 0;
+	}
+
+	if (!(msg = nl80211_drv_msg(drv, NLM_F_DUMP, NL80211_CMD_VENDOR)) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_ID, OUI_MTK) ||
+	    nla_put_u32(msg, NL80211_ATTR_VENDOR_SUBCMD,
+			MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL) ||
+	    !(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA | NLA_F_NESTED)) ||
+	    nla_put_u8(msg, MTK_VENDOR_ATTR_EDCCA_CTRL_MODE, mode)) {
+		wpa_printf (MSG_ERROR, "Prepare nl80211 msg fail");
+		nlmsg_free(msg);
+		return -ENOBUFS;
+	}
+	nla_nest_end(msg, data);
+	ret = send_and_recv_msgs(drv, msg, edcca_info_handler, value, NULL, NULL);
+	if (ret) {
+		wpa_printf(MSG_ERROR, "Failed to get EDCCA configuration. ret=%d (%s)",
+			   ret, strerror(-ret));
+	}
+	return ret;
+}
+
 
 const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.name = "nl80211",
@@ -12514,4 +12675,8 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.register_frame = testing_nl80211_register_frame,
 	.radio_disable = testing_nl80211_radio_disable,
 #endif /* CONFIG_TESTING_OPTIONS */
+/* Need ifdef CONFIG_DRIVER_NL80211_MTK */
+	.configure_edcca_enable = nl80211_configure_edcca_enable,
+	.configure_edcca_threshold = nl80211_configure_edcca_threshold,
+	.get_edcca = nl80211_get_edcca,
 };
diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h
index 6e40d55..13e5d24 100644
--- a/src/drivers/driver_nl80211.h
+++ b/src/drivers/driver_nl80211.h
@@ -181,6 +181,7 @@ struct wpa_driver_nl80211_data {
 	unsigned int qca_do_acs:1;
 	unsigned int brcm_do_acs:1;
 	unsigned int uses_6ghz:1;
+	unsigned int mtk_edcca_vendor_cmd_avail:1;
 
 	u64 vendor_scan_cookie;
 	u64 remain_on_chan_cookie;
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index 7ede0d0..732ae29 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -18,6 +18,7 @@
 #include "common/qca-vendor-attr.h"
 #include "common/brcm_vendor.h"
 #include "driver_nl80211.h"
+#include "common/mtk_vendor.h"
 
 
 static int protocol_feature_handler(struct nl_msg *msg, void *arg)
@@ -1050,6 +1051,12 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
 					break;
 				}
 #endif /* CONFIG_DRIVER_NL80211_BRCM */
+			} else if (vinfo->vendor_id == OUI_MTK) {
+				switch (vinfo->subcmd) {
+				case MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL :
+					drv->mtk_edcca_vendor_cmd_avail = 1;
+					break;
+				}
 			}
 
 			wpa_printf(MSG_DEBUG, "nl80211: Supported vendor command: vendor_id=0x%x subcmd=%u",
-- 
2.18.0