From d5c58b339c448a6d1d476205b68d434d7bf8e472 Mon Sep 17 00:00:00 2001
From: TomLiu <tomml.liu@mediatek.com>
Date: Tue, 9 Aug 2022 10:23:44 -0700
Subject: [PATCH 1/6] Add hostapd HEMU SET/GET control

---
 hostapd/config_file.c             |   9 +++
 hostapd/ctrl_iface.c              |  62 +++++++++++++++++
 hostapd/hostapd_cli.c             |  18 +++++
 src/ap/ap_config.c                |   1 +
 src/ap/ap_config.h                |   1 +
 src/ap/ap_drv_ops.c               |  14 ++++
 src/ap/ap_drv_ops.h               |   2 +
 src/ap/hostapd.c                  |   2 +
 src/common/mtk_vendor.h           |  15 ++++
 src/drivers/driver.h              |  13 ++++
 src/drivers/driver_nl80211.c      | 110 ++++++++++++++++++++++++++++++
 src/drivers/driver_nl80211.h      |   1 +
 src/drivers/driver_nl80211_capa.c |   3 +
 13 files changed, 251 insertions(+)

diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index c99e76d..afe0f0c 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -3698,6 +3698,15 @@ static int hostapd_config_fill(struct hostapd_config *conf,
 			return 1;
 		}
 		bss->unsol_bcast_probe_resp_interval = val;
+	} else if (os_strcmp(buf, "hemu_onoff") == 0) {
+		int val = atoi(pos);
+		if (val < 0 || val > 15) {
+			wpa_printf(MSG_ERROR,
+				   "Line %d: invalid hemu_onoff value",
+				   line);
+			return 1;
+		}
+		conf->hemu_onoff = val;
 #endif /* CONFIG_IEEE80211AX */
 	} else if (os_strcmp(buf, "max_listen_interval") == 0) {
 		bss->max_listen_interval = atoi(pos);
diff --git a/hostapd/ctrl_iface.c b/hostapd/ctrl_iface.c
index 9c70d54..5f71aee 100644
--- a/hostapd/ctrl_iface.c
+++ b/hostapd/ctrl_iface.c
@@ -3441,6 +3441,63 @@ hostapd_ctrl_iface_get_edcca(struct hostapd_data *hapd, char *cmd, char *buf,
 }
 
 
+static int
+hostapd_ctrl_iface_set_hemu(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, "onoff") == 0) {
+		int hemu = atoi(value);
+		if (hemu < 0 || hemu > 15) {
+			wpa_printf(MSG_ERROR, "Invalid value for hemu");
+			return -1;
+		}
+		hapd->iconf->hemu_onoff = (u8) hemu;
+	} else {
+		wpa_printf(MSG_ERROR,
+			"Unsupported parameter %s for SET_HEMU", config);
+		return -1;
+	}
+
+	if(hostapd_drv_hemu_ctrl(hapd) == 0) {
+		return os_snprintf(buf, buflen, "OK\n");
+	} else {
+		return -1;
+	}
+}
+
+
+static int
+hostapd_ctrl_iface_get_hemu(struct hostapd_data *hapd, char *buf,
+					 size_t buflen)
+{
+	u8 hemu_onoff;
+	char *pos, *end;
+
+	pos = buf;
+	end = buf + buflen;
+
+	if (hostapd_drv_hemu_dump(hapd, &hemu_onoff) == 0) {
+		hapd->iconf->hemu_onoff = hemu_onoff;
+		return os_snprintf(pos, end - pos, "[hostapd_cli] = UL MU-MIMO: %d, DL MU-MIMO: %d, UL OFDMA: %d, DL OFDMA: %d\n",
+			!!(hemu_onoff&BIT(3)), !!(hemu_onoff&BIT(2)), !!(hemu_onoff&BIT(1)), !!(hemu_onoff&BIT(0)));
+	} else {
+		wpa_printf(MSG_INFO, "ctrl iface failed to call");
+		return -1;
+	}
+}
+
+
 static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
 					      char *buf, char *reply,
 					      int reply_size,
@@ -3993,6 +4050,11 @@ static int hostapd_ctrl_iface_receive_process(struct hostapd_data *hapd,
 	} else if (os_strncmp(buf, "GET_EDCCA ", 10) == 0) {
 		reply_len = hostapd_ctrl_iface_get_edcca(hapd, buf+10, reply,
 							  reply_size);
+	} else if (os_strncmp(buf, "SET_HEMU ", 9) == 0) {
+		reply_len = hostapd_ctrl_iface_set_hemu(hapd, buf+9, reply,
+							  reply_size);
+	} else if (os_strncmp(buf, "GET_HEMU", 8) == 0) {
+		reply_len = hostapd_ctrl_iface_get_hemu(hapd, reply, reply_size);
 	} else {
 		os_memcpy(reply, "UNKNOWN COMMAND\n", 16);
 		reply_len = 16;
diff --git a/hostapd/hostapd_cli.c b/hostapd/hostapd_cli.c
index db21258..0d36477 100644
--- a/hostapd/hostapd_cli.c
+++ b/hostapd/hostapd_cli.c
@@ -1380,6 +1380,20 @@ static int hostapd_cli_cmd_driver_flags(struct wpa_ctrl *ctrl, int argc,
 }
 
 
+static int hostapd_cli_cmd_set_hemu(struct wpa_ctrl *ctrl, int argc,
+					   char *argv[])
+{
+	return hostapd_cli_cmd(ctrl, "SET_HEMU", 1, argc, argv);
+}
+
+
+static int hostapd_cli_cmd_get_hemu(struct wpa_ctrl *ctrl, int argc,
+					   char *argv[])
+{
+	return hostapd_cli_cmd(ctrl, "GET_HEMU", 0, NULL, NULL);
+}
+
+
 #ifdef CONFIG_DPP
 
 static int hostapd_cli_cmd_dpp_qr_code(struct wpa_ctrl *ctrl, int argc,
@@ -1705,6 +1719,10 @@ static const struct hostapd_cli_cmd hostapd_cli_commands[] = {
 	  " = send FTM range request"},
 	{ "driver_flags", hostapd_cli_cmd_driver_flags, NULL,
 	  " = show supported driver flags"},
+	{ "set_hemu", hostapd_cli_cmd_set_hemu, NULL,
+		"<value> [0-15] bitmap- UL MU-MIMO(bit3), DL MU-MIMO(bit2), UL OFDMA(bit1), DL OFDMA(bit0)"},
+	{ "get_hemu", hostapd_cli_cmd_get_hemu, NULL,
+		" = show hemu onoff value in 0-15 bitmap"},
 #ifdef CONFIG_DPP
 	{ "dpp_qr_code", hostapd_cli_cmd_dpp_qr_code, NULL,
 	  "report a scanned DPP URI from a QR Code" },
diff --git a/src/ap/ap_config.c b/src/ap/ap_config.c
index 344585a..0e1f192 100644
--- a/src/ap/ap_config.c
+++ b/src/ap/ap_config.c
@@ -280,6 +280,7 @@ struct hostapd_config * hostapd_config_defaults(void)
 	conf->he_6ghz_max_ampdu_len_exp = 7;
 	conf->he_6ghz_rx_ant_pat = 1;
 	conf->he_6ghz_tx_ant_pat = 1;
+	conf->hemu_onoff = 13;
 #endif /* CONFIG_IEEE80211AX */
 
 	/* The third octet of the country string uses an ASCII space character
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index 775c567..41b8c68 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -1114,6 +1114,7 @@ struct hostapd_config {
 	u8 he_6ghz_rx_ant_pat;
 	u8 he_6ghz_tx_ant_pat;
 	u8 he_6ghz_reg_pwr_type;
+	u8 hemu_onoff;
 #endif /* CONFIG_IEEE80211AX */
 
 	/* VHT enable/disable config from CHAN_SWITCH */
diff --git a/src/ap/ap_drv_ops.c b/src/ap/ap_drv_ops.c
index 25e967d..4598737 100644
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -1039,3 +1039,17 @@ int hostapd_drv_get_edcca(struct hostapd_data *hapd, const u8 mode, u8 *value)
 		return 0;
 	return hapd->driver->get_edcca(hapd->drv_priv, mode, value);
 }
+
+int hostapd_drv_hemu_ctrl(struct hostapd_data *hapd)
+{
+	if (!hapd->driver || !hapd->driver->hemu_ctrl)
+		return 0;
+	return hapd->driver->hemu_ctrl(hapd->drv_priv, hapd->iconf->hemu_onoff);
+}
+
+int hostapd_drv_hemu_dump(struct hostapd_data *hapd, u8 *hemu_onoff)
+{
+	if (!hapd->driver || !hapd->driver->hemu_dump)
+		return 0;
+	return hapd->driver->hemu_dump(hapd->drv_priv, hemu_onoff);
+}
diff --git a/src/ap/ap_drv_ops.h b/src/ap/ap_drv_ops.h
index 70a99f4..bca39c5 100644
--- a/src/ap/ap_drv_ops.h
+++ b/src/ap/ap_drv_ops.h
@@ -142,6 +142,8 @@ 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);
+int hostapd_drv_hemu_ctrl(struct hostapd_data *hapd);
+int hostapd_drv_hemu_dump(struct hostapd_data *hapd, u8 *hemu_onoff);
 
 #include "drivers/driver.h"
 
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index d05f948..921769d 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -2301,6 +2301,8 @@ dfs_offload:
 	if (hostapd_drv_configure_edcca_threshold(hapd,
 						  hapd->iconf->edcca_threshold) < 0)
 		goto fail;
+	if (hostapd_drv_hemu_ctrl(hapd) < 0)
+		goto fail;
 
 	wpa_printf(MSG_DEBUG, "%s: Setup of interface done.",
 		   iface->bss[0]->conf->iface);
diff --git a/src/common/mtk_vendor.h b/src/common/mtk_vendor.h
index 7056126..69a46df 100644
--- a/src/common/mtk_vendor.h
+++ b/src/common/mtk_vendor.h
@@ -10,6 +10,8 @@ enum mtk_nl80211_vendor_subcmds {
 	MTK_NL80211_VENDOR_SUBCMD_CSI_CTRL = 0xc2,
 	MTK_NL80211_VENDOR_SUBCMD_RFEATURE_CTRL = 0xc3,
 	MTK_NL80211_VENDOR_SUBCMD_WIRELESS_CTRL = 0xc4,
+	MTK_NL80211_VENDOR_SUBCMD_HEMU_CTRL = 0xc5,
+	MTK_NL80211_VENDOR_SUBCMD_PHY_CAPA_CTRL= 0xc6,
 	MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL = 0xc7,
 };
 
@@ -174,6 +176,19 @@ enum mtk_vendor_attr_rfeature_ctrl {
 		NUM_MTK_VENDOR_ATTRS_RFEATURE_CTRL - 1
 };
 
+enum mtk_vendor_attr_hemu_ctrl {
+	MTK_VENDOR_ATTR_HEMU_CTRL_UNSPEC,
+
+	MTK_VENDOR_ATTR_HEMU_CTRL_ONOFF,
+	MTK_VENDOR_ATTR_HEMU_CTRL_DUMP,
+
+	/* keep last */
+	NUM_MTK_VENDOR_ATTRS_HEMU_CTRL,
+	MTK_VENDOR_ATTR_HEMU_CTRL_MAX =
+		NUM_MTK_VENDOR_ATTRS_HEMU_CTRL - 1
+};
+
+
 #define CSI_MAX_COUNT 256
 #define ETH_ALEN 6
 
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 3559974..4cd7505 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1623,6 +1623,11 @@ struct wpa_driver_ap_params {
 	 * Unsolicited broadcast Probe Response template length
 	 */
 	size_t unsol_bcast_probe_resp_tmpl_len;
+
+	/**
+	 * hemu onoff=<val> (bitmap- UL MU-MIMO(bit3), DL MU-MIMO(bit2), UL OFDMA(bit1), DL OFDMA(bit0))
+	 */
+	u8 hemu_onoff;
 };
 
 struct wpa_driver_mesh_bss_params {
@@ -4680,6 +4685,14 @@ struct wpa_driver_ops {
 				  const s8 edcca_compensation);
 	int (*configure_edcca_threshold)(void *priv, const int *threshold);
 	int (*get_edcca)(void *priv, const u8 mode, u8 *value);
+
+	/**
+	 * hemu_ctrl - ctrl on off for UL/DL MURU
+	 * @priv: Private driver interface data
+	 *
+	 */
+	 int (*hemu_ctrl)(void *priv, u8 hemu_onoff);
+	 int (*hemu_dump)(void *priv, u8 *hemu_onoff);
 };
 
 /**
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 5fe1d33..ef0ca18 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -12304,6 +12304,114 @@ fail:
 }
 
 
+#ifdef CONFIG_IEEE80211AX
+static int nl80211_hemu_muruonoff(void *priv, u8 hemu_onoff)
+{
+	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_hemu_vendor_cmd_avail) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Driver does not support setting hemu control");
+		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_HEMU_CTRL) ||
+		!(data = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA)) ||
+		nla_put_u8(msg, MTK_VENDOR_ATTR_HEMU_CTRL_ONOFF, hemu_onoff)) {
+		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 set hemu_onoff. ret=%d (%s)", ret, strerror(-ret));
+	}
+	return ret;
+}
+
+
+static int hemu_dump_handler(struct nl_msg *msg, void *arg)
+{
+	u8 *hemu_onoff = (u8 *) arg;
+	struct nlattr *tb[NL80211_ATTR_MAX + 1];
+	struct nlattr *tb_vendor[MTK_VENDOR_ATTR_HEMU_CTRL_MAX + 1];
+	struct genlmsghdr *gnlh = nlmsg_data(nlmsg_hdr(msg));
+	struct nlattr *nl_vend, *attr;
+
+	static const struct nla_policy
+	hemu_ctrl_policy[NUM_MTK_VENDOR_ATTRS_HEMU_CTRL + 1] = {
+		[MTK_VENDOR_ATTR_HEMU_CTRL_ONOFF] = {.type = NLA_U8 },
+		[MTK_VENDOR_ATTR_HEMU_CTRL_DUMP] = {.type = NLA_U8 },
+	};
+
+	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_HEMU_CTRL_MAX,
+		  nla_data(nl_vend), nla_len(nl_vend), NULL);
+
+	attr = tb_vendor[MTK_VENDOR_ATTR_HEMU_CTRL_DUMP];
+	if (!attr) {
+		wpa_printf(MSG_ERROR, "nl80211: cannot find MTK_VENDOR_ATTR_HEMU_CTRL_DUMP");
+		return NL_SKIP;
+	}
+
+	*hemu_onoff = nla_get_u8(attr);
+	wpa_printf(MSG_DEBUG, "nla_get hemu_onoff: %d\n", *hemu_onoff);
+
+	return 0;
+}
+
+static int nl80211_hemu_dump(void *priv, u8 *hemu_onoff)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	struct nlattr *attr;
+	int ret;
+
+	if (!drv->mtk_hemu_vendor_cmd_avail) {
+		wpa_printf(MSG_INFO,
+			   "nl80211: Driver does not support setting hemu control");
+		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_HEMU_CTRL)) {
+		nlmsg_free(msg);
+		return -ENOBUFS;
+	}
+
+  attr = nla_nest_start(msg, NL80211_ATTR_VENDOR_DATA);
+	if (!attr) {
+		nlmsg_free(msg);
+		return -1;
+	}
+
+	nla_nest_end(msg, attr);
+
+	ret = send_and_recv_msgs(drv, msg, hemu_dump_handler, hemu_onoff, NULL, NULL);
+
+	if(ret){
+		wpa_printf(MSG_ERROR, "Failed to get hemu_onoff. ret=%d (%s)", ret, strerror(-ret));
+	}
+
+	return ret;
+}
+#endif /* CONFIG_IEEE80211AX */
+
+
 #ifdef CONFIG_DPP
 static int nl80211_dpp_listen(void *priv, bool enable)
 {
@@ -12668,6 +12776,8 @@ const struct wpa_driver_ops wpa_driver_nl80211_ops = {
 	.update_connect_params = nl80211_update_connection_params,
 	.send_external_auth_status = nl80211_send_external_auth_status,
 	.set_4addr_mode = nl80211_set_4addr_mode,
+	.hemu_ctrl = nl80211_hemu_muruonoff,
+	.hemu_dump = nl80211_hemu_dump,
 #ifdef CONFIG_DPP
 	.dpp_listen = nl80211_dpp_listen,
 #endif /* CONFIG_DPP */
diff --git a/src/drivers/driver_nl80211.h b/src/drivers/driver_nl80211.h
index 13e5d24..57f0249 100644
--- a/src/drivers/driver_nl80211.h
+++ b/src/drivers/driver_nl80211.h
@@ -182,6 +182,7 @@ struct wpa_driver_nl80211_data {
 	unsigned int brcm_do_acs:1;
 	unsigned int uses_6ghz:1;
 	unsigned int mtk_edcca_vendor_cmd_avail:1;
+	unsigned int mtk_hemu_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 732ae29..cc146d9 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -1056,6 +1056,9 @@ static int wiphy_info_handler(struct nl_msg *msg, void *arg)
 				case MTK_NL80211_VENDOR_SUBCMD_EDCCA_CTRL :
 					drv->mtk_edcca_vendor_cmd_avail = 1;
 					break;
+				case MTK_NL80211_VENDOR_SUBCMD_HEMU_CTRL :
+					drv->mtk_hemu_vendor_cmd_avail = 1;
+					break;
 				}
 			}
 
-- 
2.18.0