Message-Id: <20240930063701.2566520-4-yu-hao.lin@nxp.com>
Date: Mon, 30 Sep 2024 14:36:42 +0800
From: David Lin <yu-hao.lin@....com>
To: linux-wireless@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	briannorris@...omium.org,
	kvalo@...nel.org,
	francesco@...cini.it,
	tsung-hsien.hsieh@....com,
	s.hauer@...gutronix.de,
	David Lin <yu-hao.lin@....com>
Subject: [PATCH v3 03/22] wifi: nxpwifi: add 802.11ax files

For client mode, NXP firmware will help association process via
host command HOST_CMD_802_11_ASSOCIATE. IEs for 802.11ax should be
converted from parameters passed from cfg80211 to TLVs appended
to host command HOST_CMD_802_11_ASSOCIATE.

For AP mode, IEs for 802.11ax should be converted from parameters
passed from cfg80211 to host command HOST_CMD_11AX_CFG.

Files in this commit will support 802.11ax features based on above
descriptions.

Signed-off-by: David Lin <yu-hao.lin@....com>
---
 drivers/net/wireless/nxp/nxpwifi/11ax.c | 388 ++++++++++++++++++++++++
 drivers/net/wireless/nxp/nxpwifi/11ax.h |  61 ++++
 2 files changed, 449 insertions(+)
 create mode 100644 drivers/net/wireless/nxp/nxpwifi/11ax.c
 create mode 100644 drivers/net/wireless/nxp/nxpwifi/11ax.h

diff --git a/drivers/net/wireless/nxp/nxpwifi/11ax.c b/drivers/net/wireless/nxp/nxpwifi/11ax.c
new file mode 100644
index 000000000000..923f8100b576
--- /dev/null
+++ b/drivers/net/wireless/nxp/nxpwifi/11ax.c
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * NXP Wireless LAN device driver: 802.11ax
+ *
+ * Copyright 2011-2024 NXP
+ */
+
+#include "cfg.h"
+#include "fw.h"
+#include "main.h"
+#include "11ax.h"
+
+void nxpwifi_update_11ax_cap(struct nxpwifi_adapter *adapter,
+			     struct hw_spec_extension *hw_he_cap)
+{
+	struct nxpwifi_private *priv;
+	struct nxpwifi_ie_types_he_cap *he_cap = NULL;
+	struct nxpwifi_ie_types_he_cap *user_he_cap = NULL;
+	u8 header_len = sizeof(struct nxpwifi_ie_types_header);
+	u16 data_len = le16_to_cpu(hw_he_cap->header.len);
+	bool he_cap_2g = false;
+	int i;
+
+	if ((data_len + header_len) > sizeof(adapter->hw_he_cap)) {
+		nxpwifi_dbg(adapter, ERROR,
+			    "hw_he_cap too big, len=%d\n",
+			    data_len);
+		return;
+	}
+
+	he_cap = (struct nxpwifi_ie_types_he_cap *)hw_he_cap;
+
+	if (he_cap->he_phy_cap[0] &
+	    (AX_2G_40MHZ_SUPPORT | AX_2G_20MHZ_SUPPORT)) {
+		adapter->hw_2g_he_cap_len = data_len + header_len;
+		memcpy(adapter->hw_2g_he_cap, (u8 *)hw_he_cap,
+		       adapter->hw_2g_he_cap_len);
+		adapter->fw_bands |= BAND_GAX;
+		he_cap_2g = true;
+		nxpwifi_dbg_dump(adapter, CMD_D, "2.4G HE capability IE ",
+				 adapter->hw_2g_he_cap,
+				 adapter->hw_2g_he_cap_len);
+	} else {
+		adapter->hw_he_cap_len = data_len + header_len;
+		memcpy(adapter->hw_he_cap, (u8 *)hw_he_cap,
+		       adapter->hw_he_cap_len);
+		adapter->fw_bands |= BAND_AAX;
+		nxpwifi_dbg_dump(adapter, CMD_D, "5G HE capability IE ",
+				 adapter->hw_he_cap,
+				 adapter->hw_he_cap_len);
+	}
+
+	for (i = 0; i < adapter->priv_num; i++) {
+		priv = adapter->priv[i];
+
+		if (he_cap_2g) {
+			priv->user_2g_he_cap_len = adapter->hw_2g_he_cap_len;
+			memcpy(priv->user_2g_he_cap, adapter->hw_2g_he_cap,
+			       sizeof(adapter->hw_2g_he_cap));
+			user_he_cap = (struct nxpwifi_ie_types_he_cap *)
+				priv->user_2g_he_cap;
+		} else {
+			priv->user_he_cap_len = adapter->hw_he_cap_len;
+			memcpy(priv->user_he_cap, adapter->hw_he_cap,
+			       sizeof(adapter->hw_he_cap));
+			user_he_cap = (struct nxpwifi_ie_types_he_cap *)
+				priv->user_he_cap;
+		}
+
+		if (GET_BSS_ROLE(priv) == NXPWIFI_BSS_ROLE_STA)
+			user_he_cap->he_mac_cap[0] &=
+				HE_MAC_CAP_TWT_RESP_SUPPORT;
+		else
+			user_he_cap->he_mac_cap[0] &=
+				HE_MAC_CAP_TWT_REQ_SUPPORT;
+	}
+
+	adapter->is_hw_11ax_capable = true;
+}
+
+bool nxpwifi_11ax_bandconfig_allowed(struct nxpwifi_private *priv,
+				     struct nxpwifi_bssdescriptor *bss_desc)
+{
+	u16 bss_band = bss_desc->bss_band;
+
+	if (bss_desc->disable_11n)
+		return false;
+
+	if (bss_band & BAND_G)
+		return (priv->config_bands & BAND_GAX);
+	else if (bss_band & BAND_A)
+		return (priv->config_bands & BAND_AAX);
+
+	return false;
+}
+
+int nxpwifi_cmd_append_11ax_tlv(struct nxpwifi_private *priv,
+				struct nxpwifi_bssdescriptor *bss_desc,
+				u8 **buffer)
+{
+	struct nxpwifi_adapter *adapter = priv->adapter;
+	struct nxpwifi_ie_types_he_cap *he_cap = NULL;
+	struct nxpwifi_ie_types_he_cap *hw_he_cap = NULL;
+	int ret_len;
+	u16 rx_nss, tx_nss;
+	u8 nss;
+	u16 cfg_value;
+	u16 hw_value;
+
+	if (!bss_desc->bcn_he_cap)
+		return -EOPNOTSUPP;
+
+	he_cap = (struct nxpwifi_ie_types_he_cap *)*buffer;
+	if (bss_desc->bss_band & BAND_A) {
+		memcpy(*buffer, priv->user_he_cap, priv->user_he_cap_len);
+		*buffer += priv->user_he_cap_len;
+		ret_len = priv->user_he_cap_len;
+		hw_he_cap = (struct nxpwifi_ie_types_he_cap *)
+			adapter->hw_he_cap;
+	} else {
+		memcpy(*buffer, priv->user_2g_he_cap, priv->user_2g_he_cap_len);
+		*buffer += priv->user_2g_he_cap_len;
+		ret_len = priv->user_2g_he_cap_len;
+		hw_he_cap = (struct nxpwifi_ie_types_he_cap *)
+			adapter->hw_2g_he_cap;
+	}
+
+	if (bss_desc->bss_band & BAND_A) {
+		rx_nss = GET_RXMCSSUPP(adapter->user_htstream >> 8);
+		tx_nss = GET_TXMCSSUPP(adapter->user_htstream >> 8) & 0x0f;
+	} else {
+		rx_nss = GET_RXMCSSUPP(adapter->user_htstream);
+		tx_nss = GET_TXMCSSUPP(adapter->user_htstream) & 0x0f;
+	}
+
+	for (nss = 1; nss <= 8; nss++) {
+		cfg_value = nxpwifi_get_he_nss_mcs(he_cap->rx_mcs_80, nss);
+		hw_value = nxpwifi_get_he_nss_mcs(hw_he_cap->rx_mcs_80, nss);
+		if (rx_nss != 0 && nss > rx_nss)
+			cfg_value = NO_NSS_SUPPORT;
+		if (hw_value == NO_NSS_SUPPORT ||
+		    cfg_value == NO_NSS_SUPPORT)
+			nxpwifi_set_he_nss_mcs(&he_cap->rx_mcs_80, nss,
+					       NO_NSS_SUPPORT);
+		else
+			nxpwifi_set_he_nss_mcs(&he_cap->rx_mcs_80, nss,
+					       min(cfg_value, hw_value));
+	}
+
+	for (nss = 1; nss <= 8; nss++) {
+		cfg_value = nxpwifi_get_he_nss_mcs(he_cap->tx_mcs_80, nss);
+		hw_value = nxpwifi_get_he_nss_mcs(hw_he_cap->tx_mcs_80, nss);
+		if (tx_nss != 0 && nss > tx_nss)
+			cfg_value = NO_NSS_SUPPORT;
+		if (hw_value == NO_NSS_SUPPORT ||
+		    cfg_value == NO_NSS_SUPPORT)
+			nxpwifi_set_he_nss_mcs(&he_cap->tx_mcs_80, nss,
+					       NO_NSS_SUPPORT);
+		else
+			nxpwifi_set_he_nss_mcs(&he_cap->tx_mcs_80, nss,
+					       min(cfg_value, hw_value));
+	}
+
+	return ret_len;
+}
+
+int nxpwifi_cmd_11ax_cfg(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct nxpwifi_11ax_he_cfg *ax_cfg)
+{
+	struct host_cmd_11ax_cfg *he_cfg = &cmd->params.ax_cfg;
+	u16 cmd_size;
+	struct nxpwifi_ie_types_header *header;
+
+	cmd->command = cpu_to_le16(HOST_CMD_11AX_CFG);
+	cmd_size = sizeof(struct host_cmd_11ax_cfg) + S_DS_GEN;
+
+	he_cfg->action = cpu_to_le16(cmd_action);
+	he_cfg->band_config = ax_cfg->band;
+
+	if (ax_cfg->he_cap_cfg.len &&
+	    ax_cfg->he_cap_cfg.ext_id == WLAN_EID_EXT_HE_CAPABILITY) {
+		header = (struct nxpwifi_ie_types_header *)he_cfg->tlv;
+		header->type = cpu_to_le16(ax_cfg->he_cap_cfg.id);
+		header->len = cpu_to_le16(ax_cfg->he_cap_cfg.len);
+		memcpy(he_cfg->tlv + sizeof(*header),
+		       &ax_cfg->he_cap_cfg.ext_id,
+		       ax_cfg->he_cap_cfg.len);
+		cmd_size += (sizeof(*header) + ax_cfg->he_cap_cfg.len);
+	}
+
+	cmd->size = cpu_to_le16(cmd_size);
+
+	return 0;
+}
+
+int nxpwifi_ret_11ax_cfg(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *resp,
+			 struct nxpwifi_11ax_he_cfg *ax_cfg)
+{
+	struct host_cmd_11ax_cfg *he_cfg = &resp->params.ax_cfg;
+	struct nxpwifi_ie_types_header *header;
+	u16 left_len, tlv_type, tlv_len;
+	u8 ext_id;
+	struct nxpwifi_11ax_he_cap_cfg *he_cap = &ax_cfg->he_cap_cfg;
+
+	left_len = resp->size - sizeof(*he_cfg) - S_DS_GEN;
+	header = (struct nxpwifi_ie_types_header *)he_cfg->tlv;
+
+	while (left_len > sizeof(*header)) {
+		tlv_type = le16_to_cpu(header->type);
+		tlv_len = le16_to_cpu(header->len);
+
+		if (tlv_type == TLV_TYPE_EXTENSION_ID) {
+			ext_id = *((u8 *)header + sizeof(*header) + 1);
+			if (ext_id == WLAN_EID_EXT_HE_CAPABILITY) {
+				he_cap->id = tlv_type;
+				he_cap->len = tlv_len;
+				memcpy((u8 *)&he_cap->ext_id,
+				       (u8 *)header + sizeof(*header) + 1,
+				       tlv_len);
+				if (he_cfg->band_config & BIT(1)) {
+					memcpy(priv->user_he_cap,
+					       (u8 *)header,
+					       sizeof(*header) + tlv_len);
+					priv->user_he_cap_len =
+						sizeof(*header) + tlv_len;
+				} else {
+					memcpy(priv->user_2g_he_cap,
+					       (u8 *)header,
+					       sizeof(*header) + tlv_len);
+					priv->user_2g_he_cap_len =
+						sizeof(*header) + tlv_len;
+				}
+			}
+		}
+
+		left_len -= (sizeof(*header) + tlv_len);
+		header = (struct nxpwifi_ie_types_header *)((u8 *)header +
+							    sizeof(*header) +
+							    tlv_len);
+	}
+
+	return 0;
+}
+
+int nxpwifi_cmd_11ax_cmd(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct nxpwifi_11ax_cmd_cfg *ax_cmd)
+{
+	struct nxpwifi_adapter *adapter = priv->adapter;
+	struct host_cmd_11ax_cmd *he_cmd = &cmd->params.ax_cmd;
+	u16 cmd_size;
+
+	cmd->command = cpu_to_le16(HOST_CMD_11AX_CMD);
+	cmd_size = sizeof(struct host_cmd_11ax_cmd) + S_DS_GEN;
+
+	he_cmd->action = cpu_to_le16(cmd_action);
+	he_cmd->sub_id = cpu_to_le16(ax_cmd->sub_id);
+
+	switch (ax_cmd->sub_command) {
+	case NXPWIFI_11AXCMD_SR_SUBID:
+		struct nxpwifi_11ax_sr_cmd *sr_cmd =
+			(struct nxpwifi_11ax_sr_cmd *)&ax_cmd->param;
+		struct nxpwifi_ie_types_data *tlv;
+
+		tlv = (struct nxpwifi_ie_types_data *)he_cmd->val;
+		tlv->header.type = cpu_to_le16(sr_cmd->type);
+		tlv->header.len = cpu_to_le16(sr_cmd->len);
+		memcpy(tlv->data, sr_cmd->param.obss_pd_offset.offset,
+		       sr_cmd->len);
+		cmd_size += (sizeof(tlv->header) + sr_cmd->len);
+		break;
+	case NXPWIFI_11AXCMD_BEAM_SUBID:
+		struct nxpwifi_11ax_beam_cmd *beam_cmd =
+			(struct nxpwifi_11ax_beam_cmd *)&ax_cmd->param;
+
+		he_cmd->val[0] = beam_cmd->value;
+		cmd_size += sizeof(*beam_cmd);
+		break;
+	case NXPWIFI_11AXCMD_HTC_SUBID:
+		struct nxpwifi_11ax_htc_cmd *htc_cmd =
+			(struct nxpwifi_11ax_htc_cmd *)&ax_cmd->param;
+
+		he_cmd->val[0] = htc_cmd->value;
+		cmd_size += sizeof(*htc_cmd);
+		break;
+	case NXPWIFI_11AXCMD_TXOMI_SUBID:
+		struct nxpwifi_11ax_txomi_cmd *txmoi_cmd =
+			(struct nxpwifi_11ax_txomi_cmd *)&ax_cmd->param;
+
+		memcpy(he_cmd->val, &txmoi_cmd->omi, sizeof(*txmoi_cmd));
+		cmd_size += sizeof(*txmoi_cmd);
+		break;
+	case NXPWIFI_11AXCMD_OBSS_TOLTIME_SUBID:
+		struct nxpwifi_11ax_toltime_cmd *toltime_cmd =
+			(struct nxpwifi_11ax_toltime_cmd *)&ax_cmd->param;
+
+		memcpy(he_cmd->val, &toltime_cmd->tol_time,
+		       sizeof(toltime_cmd->tol_time));
+		cmd_size += sizeof(*toltime_cmd);
+		break;
+	case NXPWIFI_11AXCMD_TXOPRTS_SUBID:
+		struct nxpwifi_11ax_txop_cmd *txop_cmd =
+			(struct nxpwifi_11ax_txop_cmd *)&ax_cmd->param;
+
+		memcpy(he_cmd->val, &txop_cmd->rts_thres,
+		       sizeof(txop_cmd->rts_thres));
+		cmd_size += sizeof(*txop_cmd);
+		break;
+	case NXPWIFI_11AXCMD_SET_BSRP_SUBID:
+		struct nxpwifi_11ax_set_bsrp_cmd *set_bsrp_cmd =
+			(struct nxpwifi_11ax_set_bsrp_cmd *)&ax_cmd->param;
+
+		he_cmd->val[0] = set_bsrp_cmd->value;
+		cmd_size += sizeof(*set_bsrp_cmd);
+		break;
+	case NXPWIFI_11AXCMD_LLDE_SUBID:
+		struct nxpwifi_11ax_llde_cmd *llde_cmd =
+			(struct nxpwifi_11ax_llde_cmd *)&ax_cmd->param;
+
+		memcpy(he_cmd->val, &llde_cmd->llde, sizeof(*llde_cmd));
+		cmd_size += sizeof(*llde_cmd);
+		break;
+	default:
+		nxpwifi_dbg(adapter, ERROR,
+			    "%s: Unknown sub command: %d\n",
+			    __func__, ax_cmd->sub_command);
+		return -EINVAL;
+	}
+
+	cmd->size = cpu_to_le16(cmd_size);
+
+	return 0;
+}
+
+int nxpwifi_ret_11ax_cmd(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *resp,
+			 struct nxpwifi_11ax_cmd_cfg *ax_cmd)
+{
+	struct nxpwifi_adapter *adapter = priv->adapter;
+	struct host_cmd_11ax_cmd *he_cmd = &resp->params.ax_cmd;
+
+	ax_cmd->sub_id = le16_to_cpu(he_cmd->sub_id);
+
+	switch (ax_cmd->sub_command) {
+	case NXPWIFI_11AXCMD_SR_SUBID:
+		struct nxpwifi_ie_types_data *tlv;
+
+		tlv = (struct nxpwifi_ie_types_data *)he_cmd->val;
+		memcpy(ax_cmd->param.sr_cfg.param.obss_pd_offset.offset,
+		       tlv->data,
+		       ax_cmd->param.sr_cfg.len);
+		break;
+	case NXPWIFI_11AXCMD_BEAM_SUBID:
+		ax_cmd->param.beam_cfg.value = *he_cmd->val;
+		break;
+	case NXPWIFI_11AXCMD_HTC_SUBID:
+		ax_cmd->param.htc_cfg.value = *he_cmd->val;
+		break;
+	case NXPWIFI_11AXCMD_TXOMI_SUBID:
+		memcpy(&ax_cmd->param.txomi_cfg,
+		       he_cmd->val, sizeof(ax_cmd->param.txomi_cfg));
+		break;
+	case NXPWIFI_11AXCMD_OBSS_TOLTIME_SUBID:
+		memcpy(&ax_cmd->param.toltime_cfg.tol_time,
+		       he_cmd->val, sizeof(ax_cmd->param.toltime_cfg));
+		break;
+	case NXPWIFI_11AXCMD_TXOPRTS_SUBID:
+		memcpy(&ax_cmd->param.txop_cfg.rts_thres,
+		       he_cmd->val, sizeof(ax_cmd->param.txop_cfg));
+		break;
+	case NXPWIFI_11AXCMD_SET_BSRP_SUBID:
+		ax_cmd->param.setbsrp_cfg.value = *he_cmd->val;
+		break;
+	case NXPWIFI_11AXCMD_LLDE_SUBID:
+		memcpy(&ax_cmd->param.llde_cfg,
+		       he_cmd->val, sizeof(ax_cmd->param.llde_cfg));
+		break;
+	default:
+		nxpwifi_dbg(adapter, ERROR,
+			    "%s: Unknown sub command: %d\n",
+			    __func__, ax_cmd->sub_command);
+		return -EINVAL;
+	}
+
+	return 0;
+}
diff --git a/drivers/net/wireless/nxp/nxpwifi/11ax.h b/drivers/net/wireless/nxp/nxpwifi/11ax.h
new file mode 100644
index 000000000000..41e318b39482
--- /dev/null
+++ b/drivers/net/wireless/nxp/nxpwifi/11ax.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * NXP Wireless LAN device driver: 802.11ax
+ *
+ * Copyright 2011-2024 NXP
+ */
+
+#ifndef _NXPWIFI_11AX_H_
+#define _NXPWIFI_11AX_H_
+
+/* device support 2.4G 40MHZ*/
+#define AX_2G_40MHZ_SUPPORT BIT(1)
+/* device support 2.4G 242 tone RUs */
+#define AX_2G_20MHZ_SUPPORT BIT(5)
+
+/* 0 indicates support for HE-MCS 0-7 for n spatial streams
+ * 1 indicates support for HE-MCS 0-9 for n spatial streams
+ * 2 indicates support for HE-MCS 0-11 for n spatial streams
+ * 3 indicates that n spatial streams is not supported for HE PPDUs
+ */
+static inline u16
+nxpwifi_get_he_nss_mcs(__le16 mcs_map_set, int nss) {
+	return ((le16_to_cpu(mcs_map_set) >> (2 * (nss - 1))) & 0x3);
+}
+
+static inline void
+nxpwifi_set_he_nss_mcs(__le16 *mcs_map_set, int nss, int value) {
+	u16 temp;
+
+	temp = le16_to_cpu(*mcs_map_set);
+	temp |= ((value & 0x3) << (2 * (nss - 1)));
+	*mcs_map_set = cpu_to_le16(temp);
+}
+
+void nxpwifi_update_11ax_cap(struct nxpwifi_adapter *adapter,
+			     struct hw_spec_extension *hw_he_cap);
+
+bool nxpwifi_11ax_bandconfig_allowed(struct nxpwifi_private *priv,
+				     struct nxpwifi_bssdescriptor *bss_desc);
+
+int nxpwifi_cmd_append_11ax_tlv(struct nxpwifi_private *priv,
+				struct nxpwifi_bssdescriptor *bss_desc,
+				u8 **buffer);
+
+int nxpwifi_cmd_11ax_cfg(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct nxpwifi_11ax_he_cfg *ax_cfg);
+
+int nxpwifi_ret_11ax_cfg(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *resp,
+			 struct nxpwifi_11ax_he_cfg *ax_cfg);
+
+int nxpwifi_cmd_11ax_cmd(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *cmd, u16 cmd_action,
+			 struct nxpwifi_11ax_cmd_cfg *ax_cmd);
+
+int nxpwifi_ret_11ax_cmd(struct nxpwifi_private *priv,
+			 struct host_cmd_ds_command *resp,
+			 struct nxpwifi_11ax_cmd_cfg *ax_cmd);
+
+#endif /* _NXPWIFI_11AX_H_ */
-- 
2.34.1

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