Resguardo inicial

linux-7.2.3/drivers/net/wireless/rsi/Kconfig

@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config WLAN_VENDOR_RSI
+	bool "Redpine Signals Inc devices"
+	default y
+	help
+	  If you have a wireless card belonging to this class, say Y.
+
+	  Note that the answer to this question doesn't directly affect the
+	  kernel: saying N will just cause the configurator to skip all the
+	  questions about these cards. If you say Y, you will be asked for
+	  your specific card in the following questions.
+
+if WLAN_VENDOR_RSI
+
+config RSI_91X
+	tristate "Redpine Signals Inc 91x WLAN driver support"
+	select BT_HCIRSI if RSI_COEX
+	depends on MAC80211
+	help
+	  This option enabes support for RSI 1x1 devices.
+	  Select M (recommended), if you have a RSI 1x1 wireless module.
+
+config RSI_DEBUGFS
+	bool "Redpine Signals Inc debug support"
+	depends on RSI_91X
+	default y
+	help
+	 Say Y, if you would like to enable debug support. This option
+	 creates debugfs entries
+
+config RSI_SDIO
+	tristate "Redpine Signals SDIO bus support"
+	depends on MMC && RSI_91X
+	default m
+	help
+	  This option enables the SDIO bus support in rsi drivers.
+	  Select M (recommended), if you have a RSI 1x1 wireless module.
+
+config RSI_USB
+	tristate "Redpine Signals USB bus support"
+	depends on USB && RSI_91X
+	default m
+	help
+	  This option enables the USB bus support in rsi drivers.
+	  Select M (recommended), if you have a RSI 1x1 wireless module.
+
+config RSI_COEX
+	bool "Redpine Signals WLAN BT Coexistence support"
+	depends on BT && RSI_91X
+	depends on !(BT=m && RSI_91X=y)
+	default y
+	help
+	  This option enables the WLAN BT coex support in rsi drivers.
+	  Select M (recommended), if you have want to use this feature
+	  and you have RS9113 module.
+
+endif # WLAN_VENDOR_RSI

linux-7.2.3/drivers/net/wireless/rsi/Makefile

@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+rsi_91x-y			+= rsi_91x_main.o
+rsi_91x-y			+= rsi_91x_core.o
+rsi_91x-y			+= rsi_91x_mac80211.o
+rsi_91x-y			+= rsi_91x_mgmt.o
+rsi_91x-y			+= rsi_91x_hal.o
+rsi_91x-y			+= rsi_91x_ps.o
+rsi_91x-$(CONFIG_RSI_COEX)	+= rsi_91x_coex.o
+rsi_91x-$(CONFIG_RSI_DEBUGFS)	+= rsi_91x_debugfs.o
+
+rsi_usb-y			+= rsi_91x_usb.o rsi_91x_usb_ops.o
+rsi_sdio-y			+= rsi_91x_sdio.o rsi_91x_sdio_ops.o
+obj-$(CONFIG_RSI_91X) 		+= rsi_91x.o
+obj-$(CONFIG_RSI_SDIO)		+= rsi_sdio.o
+obj-$(CONFIG_RSI_USB)		+= rsi_usb.o

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_coex.c

@@ -0,0 +1,178 @@
+/*
+ * Copyright (c) 2018 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "rsi_main.h"
+#include "rsi_coex.h"
+#include "rsi_mgmt.h"
+#include "rsi_hal.h"
+
+static enum rsi_coex_queues rsi_coex_determine_coex_q
+			(struct rsi_coex_ctrl_block *coex_cb)
+{
+	enum rsi_coex_queues q_num = RSI_COEX_Q_INVALID;
+
+	if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_COMMON]) > 0)
+		q_num = RSI_COEX_Q_COMMON;
+	if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_BT]) > 0)
+		q_num = RSI_COEX_Q_BT;
+	if (skb_queue_len(&coex_cb->coex_tx_qs[RSI_COEX_Q_WLAN]) > 0)
+		q_num = RSI_COEX_Q_WLAN;
+
+	return q_num;
+}
+
+static void rsi_coex_sched_tx_pkts(struct rsi_coex_ctrl_block *coex_cb)
+{
+	enum rsi_coex_queues coex_q = RSI_COEX_Q_INVALID;
+	struct sk_buff *skb;
+
+	do {
+		coex_q = rsi_coex_determine_coex_q(coex_cb);
+		rsi_dbg(INFO_ZONE, "queue = %d\n", coex_q);
+
+		if (coex_q == RSI_COEX_Q_BT) {
+			skb = skb_dequeue(&coex_cb->coex_tx_qs[RSI_COEX_Q_BT]);
+			rsi_send_bt_pkt(coex_cb->priv, skb);
+		}
+	} while (coex_q != RSI_COEX_Q_INVALID);
+}
+
+static void rsi_coex_scheduler_thread(struct rsi_common *common)
+{
+	struct rsi_coex_ctrl_block *coex_cb = common->coex_cb;
+	u32 timeout = EVENT_WAIT_FOREVER;
+
+	do {
+		rsi_wait_event(&coex_cb->coex_tx_thread.event, timeout);
+		rsi_reset_event(&coex_cb->coex_tx_thread.event);
+
+		rsi_coex_sched_tx_pkts(coex_cb);
+	} while (atomic_read(&coex_cb->coex_tx_thread.thread_done) == 0);
+
+	kthread_complete_and_exit(&coex_cb->coex_tx_thread.completion, 0);
+}
+
+int rsi_coex_recv_pkt(struct rsi_common *common, u8 *msg)
+{
+	u8 msg_type = msg[RSI_RX_DESC_MSG_TYPE_OFFSET];
+
+	switch (msg_type) {
+	case COMMON_CARD_READY_IND:
+		rsi_dbg(INFO_ZONE, "common card ready received\n");
+		common->hibernate_resume = false;
+		rsi_handle_card_ready(common, msg);
+		break;
+	case SLEEP_NOTIFY_IND:
+		rsi_dbg(INFO_ZONE, "sleep notify received\n");
+		rsi_mgmt_pkt_recv(common, msg);
+		break;
+	}
+
+	return 0;
+}
+
+static inline int rsi_map_coex_q(u8 hal_queue)
+{
+	switch (hal_queue) {
+	case RSI_COEX_Q:
+		return RSI_COEX_Q_COMMON;
+	case RSI_WLAN_Q:
+		return RSI_COEX_Q_WLAN;
+	case RSI_BT_Q:
+		return RSI_COEX_Q_BT;
+	}
+	return RSI_COEX_Q_INVALID;
+}
+
+int rsi_coex_send_pkt(void *priv, struct sk_buff *skb, u8 hal_queue)
+{
+	struct rsi_common *common = priv;
+	struct rsi_coex_ctrl_block *coex_cb = common->coex_cb;
+	struct skb_info *tx_params = NULL;
+	enum rsi_coex_queues coex_q;
+	int status;
+
+	coex_q = rsi_map_coex_q(hal_queue);
+	if (coex_q == RSI_COEX_Q_INVALID) {
+		rsi_dbg(ERR_ZONE, "Invalid coex queue\n");
+		return -EINVAL;
+	}
+	if (coex_q != RSI_COEX_Q_COMMON &&
+	    coex_q != RSI_COEX_Q_WLAN) {
+		skb_queue_tail(&coex_cb->coex_tx_qs[coex_q], skb);
+		rsi_set_event(&coex_cb->coex_tx_thread.event);
+		return 0;
+	}
+	if (common->iface_down) {
+		tx_params =
+			(struct skb_info *)&IEEE80211_SKB_CB(skb)->driver_data;
+
+		if (!(tx_params->flags & INTERNAL_MGMT_PKT)) {
+			rsi_indicate_tx_status(common->priv, skb, -EINVAL);
+			return 0;
+		}
+	}
+
+	/* Send packet to hal */
+	if (skb->priority == MGMT_SOFT_Q)
+		status = rsi_send_mgmt_pkt(common, skb);
+	else
+		status = rsi_send_data_pkt(common, skb);
+
+	return status;
+}
+
+int rsi_coex_attach(struct rsi_common *common)
+{
+	struct rsi_coex_ctrl_block *coex_cb;
+	int cnt;
+
+	coex_cb = kzalloc_obj(*coex_cb);
+	if (!coex_cb)
+		return -ENOMEM;
+
+	common->coex_cb = (void *)coex_cb;
+	coex_cb->priv = common;
+
+	/* Initialize co-ex queues */
+	for (cnt = 0; cnt < NUM_COEX_TX_QUEUES; cnt++)
+		skb_queue_head_init(&coex_cb->coex_tx_qs[cnt]);
+	rsi_init_event(&coex_cb->coex_tx_thread.event);
+
+	/* Initialize co-ex thread */
+	if (rsi_create_kthread(common,
+			       &coex_cb->coex_tx_thread,
+			       rsi_coex_scheduler_thread,
+			       "Coex-Tx-Thread")) {
+		rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__);
+		kfree(coex_cb);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+void rsi_coex_detach(struct rsi_common *common)
+{
+	struct rsi_coex_ctrl_block *coex_cb = common->coex_cb;
+	int cnt;
+
+	rsi_kill_thread(&coex_cb->coex_tx_thread);
+
+	for (cnt = 0; cnt < NUM_COEX_TX_QUEUES; cnt++)
+		skb_queue_purge(&coex_cb->coex_tx_qs[cnt]);
+
+	kfree(coex_cb);
+}

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_core.c

@@ -0,0 +1,501 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "rsi_mgmt.h"
+#include "rsi_common.h"
+#include "rsi_hal.h"
+#include "rsi_coex.h"
+
+/**
+ * rsi_determine_min_weight_queue() - This function determines the queue with
+ *				      the min weight.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: q_num: Corresponding queue number.
+ */
+static u8 rsi_determine_min_weight_queue(struct rsi_common *common)
+{
+	struct wmm_qinfo *tx_qinfo = common->tx_qinfo;
+	u32 q_len = 0;
+	u8 ii = 0;
+
+	for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) {
+		q_len = skb_queue_len(&common->tx_queue[ii]);
+		if ((tx_qinfo[ii].pkt_contended) && q_len) {
+			common->min_weight = tx_qinfo[ii].weight;
+			break;
+		}
+	}
+	return ii;
+}
+
+/**
+ * rsi_recalculate_weights() - This function recalculates the weights
+ *			       corresponding to each queue.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: recontend_queue bool variable
+ */
+static bool rsi_recalculate_weights(struct rsi_common *common)
+{
+	struct wmm_qinfo *tx_qinfo = common->tx_qinfo;
+	bool recontend_queue = false;
+	u8 ii = 0;
+	u32 q_len = 0;
+
+	for (ii = 0; ii < NUM_EDCA_QUEUES; ii++) {
+		q_len = skb_queue_len(&common->tx_queue[ii]);
+		/* Check for the need of contention */
+		if (q_len) {
+			if (tx_qinfo[ii].pkt_contended) {
+				tx_qinfo[ii].weight =
+				((tx_qinfo[ii].weight > common->min_weight) ?
+				 tx_qinfo[ii].weight - common->min_weight : 0);
+			} else {
+				tx_qinfo[ii].pkt_contended = 1;
+				tx_qinfo[ii].weight = tx_qinfo[ii].wme_params;
+				recontend_queue = true;
+			}
+		} else { /* No packets so no contention */
+			tx_qinfo[ii].weight = 0;
+			tx_qinfo[ii].pkt_contended = 0;
+		}
+	}
+
+	return recontend_queue;
+}
+
+/**
+ * rsi_get_num_pkts_dequeue() - This function determines the number of
+ *		                packets to be dequeued based on the number
+ *			        of bytes calculated using txop.
+ *
+ * @common: Pointer to the driver private structure.
+ * @q_num: the queue from which pkts have to be dequeued
+ *
+ * Return: pkt_num: Number of pkts to be dequeued.
+ */
+static u32 rsi_get_num_pkts_dequeue(struct rsi_common *common, u8 q_num)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct sk_buff *skb;
+	u32 pkt_cnt = 0;
+	s16 txop = common->tx_qinfo[q_num].txop * 32;
+	__le16 r_txop;
+	struct ieee80211_rate rate;
+	struct ieee80211_hdr *wh;
+	struct ieee80211_vif *vif;
+
+	rate.bitrate = RSI_RATE_MCS0 * 5 * 10; /* Convert to Kbps */
+	if (q_num == VI_Q)
+		txop = ((txop << 5) / 80);
+
+	if (skb_queue_len(&common->tx_queue[q_num]))
+		skb = skb_peek(&common->tx_queue[q_num]);
+	else
+		return 0;
+
+	do {
+		wh = (struct ieee80211_hdr *)skb->data;
+		vif = rsi_get_vif(adapter, wh->addr2);
+		r_txop = ieee80211_generic_frame_duration(adapter->hw,
+							  vif,
+							  common->band,
+							  skb->len, &rate);
+		txop -= le16_to_cpu(r_txop);
+		pkt_cnt += 1;
+		/*checking if pkts are still there*/
+		if (skb_queue_len(&common->tx_queue[q_num]) - pkt_cnt)
+			skb = skb->next;
+		else
+			break;
+
+	} while (txop > 0);
+
+	return pkt_cnt;
+}
+
+/**
+ * rsi_core_determine_hal_queue() - This function determines the queue from
+ *				    which packet has to be dequeued.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: q_num: Corresponding queue number on success.
+ */
+static u8 rsi_core_determine_hal_queue(struct rsi_common *common)
+{
+	bool recontend_queue = false;
+	u32 q_len = 0;
+	u8 q_num = INVALID_QUEUE;
+	u8 ii = 0;
+
+	if (skb_queue_len(&common->tx_queue[MGMT_BEACON_Q])) {
+		q_num = MGMT_BEACON_Q;
+		return q_num;
+	}
+	if (skb_queue_len(&common->tx_queue[MGMT_SOFT_Q])) {
+		if (!common->mgmt_q_block)
+			q_num = MGMT_SOFT_Q;
+		return q_num;
+	}
+
+	if (common->hw_data_qs_blocked)
+		return q_num;
+
+	if (common->pkt_cnt != 0) {
+		--common->pkt_cnt;
+		return common->selected_qnum;
+	}
+
+get_queue_num:
+	recontend_queue = false;
+
+	q_num = rsi_determine_min_weight_queue(common);
+
+	ii = q_num;
+
+	/* Selecting the queue with least back off */
+	for (; ii < NUM_EDCA_QUEUES; ii++) {
+		q_len = skb_queue_len(&common->tx_queue[ii]);
+		if (((common->tx_qinfo[ii].pkt_contended) &&
+		     (common->tx_qinfo[ii].weight < common->min_weight)) &&
+		      q_len) {
+			common->min_weight = common->tx_qinfo[ii].weight;
+			q_num = ii;
+		}
+	}
+
+	if (q_num < NUM_EDCA_QUEUES)
+		common->tx_qinfo[q_num].pkt_contended = 0;
+
+	/* Adjust the back off values for all queues again */
+	recontend_queue = rsi_recalculate_weights(common);
+
+	q_len = skb_queue_len(&common->tx_queue[q_num]);
+	if (!q_len) {
+		/* If any queues are freshly contended and the selected queue
+		 * doesn't have any packets
+		 * then get the queue number again with fresh values
+		 */
+		if (recontend_queue)
+			goto get_queue_num;
+
+		return INVALID_QUEUE;
+	}
+
+	common->selected_qnum = q_num;
+	q_len = skb_queue_len(&common->tx_queue[q_num]);
+
+	if (q_num == VO_Q || q_num == VI_Q) {
+		common->pkt_cnt = rsi_get_num_pkts_dequeue(common, q_num);
+		common->pkt_cnt -= 1;
+	}
+
+	return q_num;
+}
+
+/**
+ * rsi_core_queue_pkt() - This functions enqueues the packet to the queue
+ *			  specified by the queue number.
+ * @common: Pointer to the driver private structure.
+ * @skb: Pointer to the socket buffer structure.
+ *
+ * Return: None.
+ */
+static void rsi_core_queue_pkt(struct rsi_common *common,
+			       struct sk_buff *skb)
+{
+	u8 q_num = skb->priority;
+	if (q_num >= NUM_SOFT_QUEUES) {
+		rsi_dbg(ERR_ZONE, "%s: Invalid Queue Number: q_num = %d\n",
+			__func__, q_num);
+		dev_kfree_skb(skb);
+		return;
+	}
+
+	skb_queue_tail(&common->tx_queue[q_num], skb);
+}
+
+/**
+ * rsi_core_dequeue_pkt() - This functions dequeues the packet from the queue
+ *			    specified by the queue number.
+ * @common: Pointer to the driver private structure.
+ * @q_num: Queue number.
+ *
+ * Return: Pointer to sk_buff structure.
+ */
+static struct sk_buff *rsi_core_dequeue_pkt(struct rsi_common *common,
+					    u8 q_num)
+{
+	if (q_num >= NUM_SOFT_QUEUES) {
+		rsi_dbg(ERR_ZONE, "%s: Invalid Queue Number: q_num = %d\n",
+			__func__, q_num);
+		return NULL;
+	}
+
+	return skb_dequeue(&common->tx_queue[q_num]);
+}
+
+/**
+ * rsi_core_qos_processor() - This function is used to determine the wmm queue
+ *			      based on the backoff procedure. Data packets are
+ *			      dequeued from the selected hal queue and sent to
+ *			      the below layers.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: None.
+ */
+void rsi_core_qos_processor(struct rsi_common *common)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct sk_buff *skb;
+	unsigned long tstamp_1, tstamp_2;
+	u8 q_num;
+	int status;
+
+	tstamp_1 = jiffies;
+	while (1) {
+		q_num = rsi_core_determine_hal_queue(common);
+		rsi_dbg(DATA_TX_ZONE,
+			"%s: Queue number = %d\n", __func__, q_num);
+
+		if (q_num == INVALID_QUEUE) {
+			rsi_dbg(DATA_TX_ZONE, "%s: No More Pkt\n", __func__);
+			break;
+		}
+		if (common->hibernate_resume)
+			break;
+
+		mutex_lock(&common->tx_lock);
+
+		status = adapter->check_hw_queue_status(adapter, q_num);
+		if ((status <= 0)) {
+			mutex_unlock(&common->tx_lock);
+			break;
+		}
+
+		if ((q_num < MGMT_SOFT_Q) &&
+		    ((skb_queue_len(&common->tx_queue[q_num])) <=
+		      MIN_DATA_QUEUE_WATER_MARK)) {
+			if (ieee80211_queue_stopped(adapter->hw, WME_AC(q_num)))
+				ieee80211_wake_queue(adapter->hw,
+						     WME_AC(q_num));
+		}
+
+		skb = rsi_core_dequeue_pkt(common, q_num);
+		if (skb == NULL) {
+			rsi_dbg(ERR_ZONE, "skb null\n");
+			mutex_unlock(&common->tx_lock);
+			break;
+		}
+		if (q_num == MGMT_BEACON_Q) {
+			status = rsi_send_pkt_to_bus(common, skb);
+			dev_kfree_skb(skb);
+		} else {
+#ifdef CONFIG_RSI_COEX
+			if (common->coex_mode > 1) {
+				status = rsi_coex_send_pkt(common, skb,
+							   RSI_WLAN_Q);
+			} else {
+#endif
+				if (q_num == MGMT_SOFT_Q)
+					status = rsi_send_mgmt_pkt(common, skb);
+				else
+					status = rsi_send_data_pkt(common, skb);
+#ifdef CONFIG_RSI_COEX
+			}
+#endif
+		}
+
+		if (status) {
+			mutex_unlock(&common->tx_lock);
+			break;
+		}
+
+		common->tx_stats.total_tx_pkt_send[q_num]++;
+
+		tstamp_2 = jiffies;
+		mutex_unlock(&common->tx_lock);
+
+		if (time_after(tstamp_2, tstamp_1 + (300 * HZ) / 1000))
+			schedule();
+	}
+}
+
+struct rsi_sta *rsi_find_sta(struct rsi_common *common, u8 *mac_addr)
+{
+	int i;
+
+	for (i = 0; i < common->max_stations; i++) {
+		if (!common->stations[i].sta)
+			continue;
+		if (!(memcmp(common->stations[i].sta->addr,
+			     mac_addr, ETH_ALEN)))
+			return &common->stations[i];
+	}
+	return NULL;
+}
+
+struct ieee80211_vif *rsi_get_vif(struct rsi_hw *adapter, u8 *mac)
+{
+	struct ieee80211_vif *vif;
+	int i;
+
+	for (i = 0; i < RSI_MAX_VIFS; i++) {
+		vif = adapter->vifs[i];
+		if (!vif)
+			continue;
+		if (!memcmp(vif->addr, mac, ETH_ALEN))
+			return vif;
+	}
+	return NULL;
+}
+
+/**
+ * rsi_core_xmit() - This function transmits the packets received from mac80211
+ * @common: Pointer to the driver private structure.
+ * @skb: Pointer to the socket buffer structure.
+ *
+ * Return: None.
+ */
+void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct ieee80211_tx_info *info;
+	struct skb_info *tx_params;
+	struct ieee80211_hdr *wh = NULL;
+	struct ieee80211_vif *vif;
+	u8 q_num, tid = 0;
+	struct rsi_sta *rsta = NULL;
+
+	if ((!skb) || (!skb->len)) {
+		rsi_dbg(ERR_ZONE, "%s: Null skb/zero Length packet\n",
+			__func__);
+		goto xmit_fail;
+	}
+	if (common->fsm_state != FSM_MAC_INIT_DONE) {
+		rsi_dbg(ERR_ZONE, "%s: FSM state not open\n", __func__);
+		goto xmit_fail;
+	}
+	if (common->wow_flags & RSI_WOW_ENABLED) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Blocking Tx_packets when WOWLAN is enabled\n",
+			__func__);
+		goto xmit_fail;
+	}
+
+	info = IEEE80211_SKB_CB(skb);
+	tx_params = (struct skb_info *)info->driver_data;
+	/* info->driver_data and info->control part of union so make copy */
+	tx_params->have_key = !!info->control.hw_key;
+	wh = (struct ieee80211_hdr *)&skb->data[0];
+	tx_params->sta_id = 0;
+
+	vif = rsi_get_vif(adapter, wh->addr2);
+	if (!vif)
+		goto xmit_fail;
+	tx_params->vif = vif;
+	tx_params->vap_id = ((struct vif_priv *)vif->drv_priv)->vap_id;
+	if ((ieee80211_is_mgmt(wh->frame_control)) ||
+	    (ieee80211_is_ctl(wh->frame_control)) ||
+	    (ieee80211_is_qos_nullfunc(wh->frame_control))) {
+		if (ieee80211_is_assoc_req(wh->frame_control) ||
+		    ieee80211_is_reassoc_req(wh->frame_control)) {
+			struct ieee80211_bss_conf *bss = &vif->bss_conf;
+
+			common->eapol4_confirm = false;
+			rsi_hal_send_sta_notify_frame(common,
+						      RSI_IFTYPE_STATION,
+						      STA_CONNECTED, bss->bssid,
+						      bss->qos, vif->cfg.aid,
+						      0,
+						      vif);
+		}
+
+		q_num = MGMT_SOFT_Q;
+		skb->priority = q_num;
+
+		if (rsi_prepare_mgmt_desc(common, skb)) {
+			rsi_dbg(ERR_ZONE, "Failed to prepare desc\n");
+			goto xmit_fail;
+		}
+	} else {
+		if (ieee80211_is_data_qos(wh->frame_control)) {
+			u8 *qos = ieee80211_get_qos_ctl(wh);
+
+			tid = *qos & IEEE80211_QOS_CTL_TID_MASK;
+			skb->priority = TID_TO_WME_AC(tid);
+		} else {
+			tid = IEEE80211_NONQOS_TID;
+			skb->priority = BE_Q;
+		}
+
+		q_num = skb->priority;
+		tx_params->tid = tid;
+
+		if (((vif->type == NL80211_IFTYPE_AP) ||
+		     (vif->type == NL80211_IFTYPE_P2P_GO)) &&
+		    (!is_broadcast_ether_addr(wh->addr1)) &&
+		    (!is_multicast_ether_addr(wh->addr1))) {
+			rsta = rsi_find_sta(common, wh->addr1);
+			if (!rsta)
+				goto xmit_fail;
+			tx_params->sta_id = rsta->sta_id;
+		} else {
+			tx_params->sta_id = 0;
+		}
+
+		if (rsta) {
+			/* Start aggregation if not done for this tid */
+			if (!rsta->start_tx_aggr[tid]) {
+				rsta->start_tx_aggr[tid] = true;
+				ieee80211_start_tx_ba_session(rsta->sta,
+							      tid, 0);
+			}
+		}
+
+		if (IEEE80211_SKB_CB(skb)->control.flags &
+		    IEEE80211_TX_CTRL_PORT_CTRL_PROTO) {
+			q_num = MGMT_SOFT_Q;
+			skb->priority = q_num;
+		}
+		if (rsi_prepare_data_desc(common, skb)) {
+			rsi_dbg(ERR_ZONE, "Failed to prepare data desc\n");
+			goto xmit_fail;
+		}
+	}
+
+	if ((q_num < MGMT_SOFT_Q) &&
+	    ((skb_queue_len(&common->tx_queue[q_num]) + 1) >=
+	     DATA_QUEUE_WATER_MARK)) {
+		rsi_dbg(ERR_ZONE, "%s: sw queue full\n", __func__);
+		if (!ieee80211_queue_stopped(adapter->hw, WME_AC(q_num)))
+			ieee80211_stop_queue(adapter->hw, WME_AC(q_num));
+		rsi_set_event(&common->tx_thread.event);
+		goto xmit_fail;
+	}
+
+	rsi_core_queue_pkt(common, skb);
+	rsi_dbg(DATA_TX_ZONE, "%s: ===> Scheduling TX thread <===\n", __func__);
+	rsi_set_event(&common->tx_thread.event);
+
+	return;
+
+xmit_fail:
+	rsi_dbg(ERR_ZONE, "%s: Failed to queue packet\n", __func__);
+	/* Dropping pkt here */
+	ieee80211_free_txskb(common->priv->hw, skb);
+}

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_debugfs.c

@@ -0,0 +1,328 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "rsi_debugfs.h"
+#include "rsi_sdio.h"
+
+/**
+ * rsi_sdio_stats_read() - This function returns the sdio status of the driver.
+ * @seq: Pointer to the sequence file structure.
+ * @data: Pointer to the data.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+static int rsi_sdio_stats_read(struct seq_file *seq, void *data)
+{
+	struct rsi_common *common = seq->private;
+	struct rsi_hw *adapter = common->priv;
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+
+	seq_printf(seq, "total_sdio_interrupts: %d\n",
+		   dev->rx_info.sdio_int_counter);
+	seq_printf(seq, "sdio_msdu_pending_intr_count: %d\n",
+		   dev->rx_info.total_sdio_msdu_pending_intr);
+	seq_printf(seq, "sdio_buff_full_count : %d\n",
+		   dev->rx_info.buf_full_counter);
+	seq_printf(seq, "sdio_buf_semi_full_count %d\n",
+		   dev->rx_info.buf_semi_full_counter);
+	seq_printf(seq, "sdio_unknown_intr_count: %d\n",
+		   dev->rx_info.total_sdio_unknown_intr);
+	/* RX Path Stats */
+	seq_printf(seq, "BUFFER FULL STATUS  : %d\n",
+		   dev->rx_info.buffer_full);
+	seq_printf(seq, "SEMI BUFFER FULL STATUS  : %d\n",
+		   dev->rx_info.semi_buffer_full);
+	seq_printf(seq, "MGMT BUFFER FULL STATUS  : %d\n",
+		   dev->rx_info.mgmt_buffer_full);
+	seq_printf(seq, "BUFFER FULL COUNTER  : %d\n",
+		   dev->rx_info.buf_full_counter);
+	seq_printf(seq, "BUFFER SEMI FULL COUNTER  : %d\n",
+		   dev->rx_info.buf_semi_full_counter);
+	seq_printf(seq, "MGMT BUFFER FULL COUNTER  : %d\n",
+		   dev->rx_info.mgmt_buf_full_counter);
+
+	return 0;
+}
+
+/**
+ * rsi_sdio_stats_open() - This function calls single open function of seq_file
+ *			   to open file and read contents from it.
+ * @inode: Pointer to the inode structure.
+ * @file: Pointer to the file structure.
+ *
+ * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
+ */
+static int rsi_sdio_stats_open(struct inode *inode,
+			       struct file *file)
+{
+	return single_open(file, rsi_sdio_stats_read, inode->i_private);
+}
+
+/**
+ * rsi_version_read() - This function gives driver and firmware version number.
+ * @seq: Pointer to the sequence file structure.
+ * @data: Pointer to the data.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+static int rsi_version_read(struct seq_file *seq, void *data)
+{
+	struct rsi_common *common = seq->private;
+
+	seq_printf(seq, "LMAC   : %d.%d.%d.%d\n",
+		   common->lmac_ver.major,
+		   common->lmac_ver.minor,
+		   common->lmac_ver.release_num,
+		   common->lmac_ver.patch_num);
+
+	return 0;
+}
+
+/**
+ * rsi_version_open() - This function calls single open function of seq_file to
+ *			open file and read contents from it.
+ * @inode: Pointer to the inode structure.
+ * @file: Pointer to the file structure.
+ *
+ * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
+ */
+static int rsi_version_open(struct inode *inode,
+				 struct file *file)
+{
+	return single_open(file, rsi_version_read, inode->i_private);
+}
+
+/**
+ * rsi_stats_read() - This function return the status of the driver.
+ * @seq: Pointer to the sequence file structure.
+ * @data: Pointer to the data.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+static int rsi_stats_read(struct seq_file *seq, void *data)
+{
+	struct rsi_common *common = seq->private;
+
+	static const unsigned char fsm_state[][32] = {
+		"FSM_FW_NOT_LOADED",
+		"FSM_CARD_NOT_READY",
+		"FSM_COMMON_DEV_PARAMS_SENT",
+		"FSM_BOOT_PARAMS_SENT",
+		"FSM_EEPROM_READ_MAC_ADDR",
+		"FSM_EEPROM_READ_RF_TYPE",
+		"FSM_RESET_MAC_SENT",
+		"FSM_RADIO_CAPS_SENT",
+		"FSM_BB_RF_PROG_SENT",
+		"FSM_MAC_INIT_DONE"
+	};
+	seq_puts(seq, "==> RSI STA DRIVER STATUS <==\n");
+	seq_puts(seq, "DRIVER_FSM_STATE: ");
+
+	BUILD_BUG_ON(ARRAY_SIZE(fsm_state) != NUM_FSM_STATES);
+
+	if (common->fsm_state <= FSM_MAC_INIT_DONE)
+		seq_printf(seq, "%s", fsm_state[common->fsm_state]);
+
+	seq_printf(seq, "(%d)\n\n", common->fsm_state);
+
+	/* Mgmt TX Path Stats */
+	seq_printf(seq, "total_mgmt_pkt_send : %d\n",
+		   common->tx_stats.total_tx_pkt_send[MGMT_SOFT_Q]);
+	seq_printf(seq, "total_mgmt_pkt_queued : %d\n",
+		   skb_queue_len(&common->tx_queue[MGMT_SOFT_Q]));
+	seq_printf(seq, "total_mgmt_pkt_freed  : %d\n",
+		   common->tx_stats.total_tx_pkt_freed[MGMT_SOFT_Q]);
+
+	/* Data TX Path Stats */
+	seq_printf(seq, "total_data_vo_pkt_send: %8d\t",
+		   common->tx_stats.total_tx_pkt_send[VO_Q]);
+	seq_printf(seq, "total_data_vo_pkt_queued:  %8d\t",
+		   skb_queue_len(&common->tx_queue[VO_Q]));
+	seq_printf(seq, "total_vo_pkt_freed: %8d\n",
+		   common->tx_stats.total_tx_pkt_freed[VO_Q]);
+	seq_printf(seq, "total_data_vi_pkt_send: %8d\t",
+		   common->tx_stats.total_tx_pkt_send[VI_Q]);
+	seq_printf(seq, "total_data_vi_pkt_queued:  %8d\t",
+		   skb_queue_len(&common->tx_queue[VI_Q]));
+	seq_printf(seq, "total_vi_pkt_freed: %8d\n",
+		   common->tx_stats.total_tx_pkt_freed[VI_Q]);
+	seq_printf(seq,  "total_data_be_pkt_send: %8d\t",
+		   common->tx_stats.total_tx_pkt_send[BE_Q]);
+	seq_printf(seq, "total_data_be_pkt_queued:  %8d\t",
+		   skb_queue_len(&common->tx_queue[BE_Q]));
+	seq_printf(seq, "total_be_pkt_freed: %8d\n",
+		   common->tx_stats.total_tx_pkt_freed[BE_Q]);
+	seq_printf(seq, "total_data_bk_pkt_send: %8d\t",
+		   common->tx_stats.total_tx_pkt_send[BK_Q]);
+	seq_printf(seq, "total_data_bk_pkt_queued:  %8d\t",
+		   skb_queue_len(&common->tx_queue[BK_Q]));
+	seq_printf(seq, "total_bk_pkt_freed: %8d\n",
+		   common->tx_stats.total_tx_pkt_freed[BK_Q]);
+
+	seq_puts(seq, "\n");
+	return 0;
+}
+
+/**
+ * rsi_stats_open() - This function calls single open function of seq_file to
+ *		      open file and read contents from it.
+ * @inode: Pointer to the inode structure.
+ * @file: Pointer to the file structure.
+ *
+ * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
+ */
+static int rsi_stats_open(struct inode *inode,
+			  struct file *file)
+{
+	return single_open(file, rsi_stats_read, inode->i_private);
+}
+
+/**
+ * rsi_debug_zone_read() - This function display the currently enabled debug zones.
+ * @seq: Pointer to the sequence file structure.
+ * @data: Pointer to the data.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+static int rsi_debug_zone_read(struct seq_file *seq, void *data)
+{
+	rsi_dbg(FSM_ZONE, "%x: rsi_enabled zone", rsi_zone_enabled);
+	seq_printf(seq, "The zones available are %#x\n",
+		   rsi_zone_enabled);
+	return 0;
+}
+
+/**
+ * rsi_debug_read() - This function calls single open function of seq_file to
+ *		      open file and read contents from it.
+ * @inode: Pointer to the inode structure.
+ * @file: Pointer to the file structure.
+ *
+ * Return: Pointer to the opened file status: 0 on success, ENOMEM on failure.
+ */
+static int rsi_debug_read(struct inode *inode,
+			  struct file *file)
+{
+	return single_open(file, rsi_debug_zone_read, inode->i_private);
+}
+
+/**
+ * rsi_debug_zone_write() - This function writes into hal queues as per user
+ *			    requirement.
+ * @filp: Pointer to the file structure.
+ * @buff: Pointer to the character buffer.
+ * @len: Length of the data to be written into buffer.
+ * @data: Pointer to the data.
+ *
+ * Return: len: Number of bytes read.
+ */
+static ssize_t rsi_debug_zone_write(struct file *filp,
+				    const char __user *buff,
+				    size_t len,
+				    loff_t *data)
+{
+	unsigned long dbg_zone;
+	int ret;
+
+	if (!len)
+		return 0;
+
+	ret = kstrtoul_from_user(buff, len, 16, &dbg_zone);
+
+	if (ret)
+		return ret;
+
+	rsi_zone_enabled = dbg_zone;
+	return len;
+}
+
+#define FOPS(fopen) { \
+	.owner = THIS_MODULE, \
+	.open = (fopen), \
+	.read = seq_read, \
+	.llseek = seq_lseek, \
+}
+
+#define FOPS_RW(fopen, fwrite) { \
+	.owner = THIS_MODULE, \
+	.open = (fopen), \
+	.read = seq_read, \
+	.llseek = seq_lseek, \
+	.write = (fwrite), \
+}
+
+static const struct rsi_dbg_files dev_debugfs_files[] = {
+	{"version", 0644, FOPS(rsi_version_open),},
+	{"stats", 0644, FOPS(rsi_stats_open),},
+	{"debug_zone", 0666, FOPS_RW(rsi_debug_read, rsi_debug_zone_write),},
+	{"sdio_stats", 0644, FOPS(rsi_sdio_stats_open),},
+};
+
+/**
+ * rsi_init_dbgfs() - This function initializes the dbgfs entry.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+int rsi_init_dbgfs(struct rsi_hw *adapter)
+{
+	struct rsi_common *common = adapter->priv;
+	struct rsi_debugfs *dev_dbgfs;
+	char devdir[6];
+	int ii;
+	const struct rsi_dbg_files *files;
+
+	dev_dbgfs = kzalloc_obj(*dev_dbgfs);
+	if (!dev_dbgfs)
+		return -ENOMEM;
+
+	adapter->dfsentry = dev_dbgfs;
+
+	snprintf(devdir, sizeof(devdir), "%s",
+		 wiphy_name(adapter->hw->wiphy));
+
+	dev_dbgfs->subdir = debugfs_create_dir(devdir, NULL);
+
+	for (ii = 0; ii < adapter->num_debugfs_entries; ii++) {
+		files = &dev_debugfs_files[ii];
+		dev_dbgfs->rsi_files[ii] =
+		debugfs_create_file(files->name,
+				    files->perms,
+				    dev_dbgfs->subdir,
+				    common,
+				    &files->fops);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rsi_init_dbgfs);
+
+/**
+ * rsi_remove_dbgfs() - Removes the previously created dbgfs file entries
+ *			in the reverse order of creation.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: None.
+ */
+void rsi_remove_dbgfs(struct rsi_hw *adapter)
+{
+	struct rsi_debugfs *dev_dbgfs = adapter->dfsentry;
+
+	if (!dev_dbgfs)
+		return;
+
+	debugfs_remove_recursive(dev_dbgfs->subdir);
+}
+EXPORT_SYMBOL_GPL(rsi_remove_dbgfs);

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_main.c

@@ -0,0 +1,431 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/firmware.h>
+#include <net/rsi_91x.h>
+#include "rsi_mgmt.h"
+#include "rsi_common.h"
+#include "rsi_coex.h"
+#include "rsi_hal.h"
+#include "rsi_usb.h"
+
+u32 rsi_zone_enabled = /* INFO_ZONE |
+			INIT_ZONE |
+			MGMT_TX_ZONE |
+			MGMT_RX_ZONE |
+			DATA_TX_ZONE |
+			DATA_RX_ZONE |
+			FSM_ZONE |
+			ISR_ZONE | */
+			ERR_ZONE |
+			0;
+EXPORT_SYMBOL_GPL(rsi_zone_enabled);
+
+#ifdef CONFIG_RSI_COEX
+static struct rsi_proto_ops g_proto_ops = {
+	.coex_send_pkt = rsi_coex_send_pkt,
+	.get_host_intf = rsi_get_host_intf,
+	.set_bt_context = rsi_set_bt_context,
+};
+#endif
+
+/**
+ * rsi_dbg() - This function outputs informational messages.
+ * @zone: Zone of interest for output message.
+ * @fmt: printf-style format for output message.
+ *
+ * Return: none
+ */
+void rsi_dbg(u32 zone, const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	if (zone & rsi_zone_enabled)
+		pr_info("%pV", &vaf);
+	va_end(args);
+}
+EXPORT_SYMBOL_GPL(rsi_dbg);
+
+static char *opmode_str(int oper_mode)
+{
+	switch (oper_mode) {
+	case DEV_OPMODE_WIFI_ALONE:
+		return "Wi-Fi alone";
+	case DEV_OPMODE_BT_ALONE:
+		return "BT EDR alone";
+	case DEV_OPMODE_BT_LE_ALONE:
+		return "BT LE alone";
+	case DEV_OPMODE_BT_DUAL:
+		return "BT Dual";
+	case DEV_OPMODE_STA_BT:
+		return "Wi-Fi STA + BT EDR";
+	case DEV_OPMODE_STA_BT_LE:
+		return "Wi-Fi STA + BT LE";
+	case DEV_OPMODE_STA_BT_DUAL:
+		return "Wi-Fi STA + BT DUAL";
+	case DEV_OPMODE_AP_BT:
+		return "Wi-Fi AP + BT EDR";
+	case DEV_OPMODE_AP_BT_DUAL:
+		return "Wi-Fi AP + BT DUAL";
+	}
+
+	return "Unknown";
+}
+
+void rsi_print_version(struct rsi_common *common)
+{
+	rsi_dbg(ERR_ZONE, "================================================\n");
+	rsi_dbg(ERR_ZONE, "================ RSI Version Info ==============\n");
+	rsi_dbg(ERR_ZONE, "================================================\n");
+	rsi_dbg(ERR_ZONE, "FW Version\t: %d.%d.%d\n",
+		common->lmac_ver.major, common->lmac_ver.minor,
+		common->lmac_ver.release_num);
+	rsi_dbg(ERR_ZONE, "Operating mode\t: %d [%s]",
+		common->oper_mode, opmode_str(common->oper_mode));
+	rsi_dbg(ERR_ZONE, "Firmware file\t: %s", common->priv->fw_file_name);
+	rsi_dbg(ERR_ZONE, "================================================\n");
+}
+
+/**
+ * rsi_prepare_skb() - This function prepares the skb.
+ * @common: Pointer to the driver private structure.
+ * @buffer: Pointer to the packet data.
+ * @pkt_len: Length of the packet.
+ * @extended_desc: Extended descriptor.
+ *
+ * Return: Successfully skb.
+ */
+static struct sk_buff *rsi_prepare_skb(struct rsi_common *common,
+				       u8 *buffer,
+				       u32 pkt_len,
+				       u8 extended_desc)
+{
+	struct sk_buff *skb = NULL;
+	u8 payload_offset;
+
+	if (WARN(!pkt_len, "%s: Dummy pkt received", __func__))
+		return NULL;
+
+	if (pkt_len > (RSI_RCV_BUFFER_LEN * 4)) {
+		rsi_dbg(ERR_ZONE, "%s: Pkt size > max rx buf size %d\n",
+			__func__, pkt_len);
+		pkt_len = RSI_RCV_BUFFER_LEN * 4;
+	}
+
+	pkt_len -= extended_desc;
+	skb = dev_alloc_skb(pkt_len + FRAME_DESC_SZ);
+	if (skb == NULL)
+		return NULL;
+
+	payload_offset = (extended_desc + FRAME_DESC_SZ);
+	skb_put(skb, pkt_len);
+	memcpy((skb->data), (buffer + payload_offset), skb->len);
+
+	return skb;
+}
+
+/**
+ * rsi_read_pkt() - This function reads frames from the card.
+ * @common: Pointer to the driver private structure.
+ * @rx_pkt: Received pkt.
+ * @rcv_pkt_len: Received pkt length. In case of USB it is 0.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len)
+{
+	u8 *frame_desc = NULL, extended_desc = 0;
+	u32 index, length = 0, queueno = 0;
+	u16 actual_length = 0, offset;
+	struct sk_buff *skb = NULL;
+#ifdef CONFIG_RSI_COEX
+	u8 bt_pkt_type;
+#endif
+
+	index = 0;
+	do {
+		frame_desc = &rx_pkt[index];
+		actual_length = *(u16 *)&frame_desc[0];
+		offset = *(u16 *)&frame_desc[2];
+		if (!rcv_pkt_len && offset >
+			RSI_MAX_RX_USB_PKT_SIZE - FRAME_DESC_SZ)
+			goto fail;
+
+		queueno = rsi_get_queueno(frame_desc, offset);
+		length = rsi_get_length(frame_desc, offset);
+
+		/* Extended descriptor is valid for WLAN queues only */
+		if (queueno == RSI_WIFI_DATA_Q || queueno == RSI_WIFI_MGMT_Q)
+			extended_desc = rsi_get_extended_desc(frame_desc,
+							      offset);
+
+		switch (queueno) {
+		case RSI_COEX_Q:
+#ifdef CONFIG_RSI_COEX
+			if (common->coex_mode > 1)
+				rsi_coex_recv_pkt(common, frame_desc + offset);
+			else
+#endif
+				rsi_mgmt_pkt_recv(common,
+						  (frame_desc + offset));
+			break;
+
+		case RSI_WIFI_DATA_Q:
+			skb = rsi_prepare_skb(common,
+					      (frame_desc + offset),
+					      length,
+					      extended_desc);
+			if (skb == NULL)
+				goto fail;
+
+			rsi_indicate_pkt_to_os(common, skb);
+			break;
+
+		case RSI_WIFI_MGMT_Q:
+			rsi_mgmt_pkt_recv(common, (frame_desc + offset));
+			break;
+
+#ifdef CONFIG_RSI_COEX
+		case RSI_BT_MGMT_Q:
+		case RSI_BT_DATA_Q:
+#define BT_RX_PKT_TYPE_OFST	14
+#define BT_CARD_READY_IND	0x89
+			bt_pkt_type = frame_desc[offset + BT_RX_PKT_TYPE_OFST];
+			if (bt_pkt_type == BT_CARD_READY_IND) {
+				rsi_dbg(INFO_ZONE, "BT Card ready recvd\n");
+				if (common->fsm_state == FSM_MAC_INIT_DONE)
+					rsi_attach_bt(common);
+				else
+					common->bt_defer_attach = true;
+			} else {
+				if (common->bt_adapter)
+					rsi_bt_ops.recv_pkt(common->bt_adapter,
+							frame_desc + offset);
+			}
+			break;
+#endif
+
+		default:
+			rsi_dbg(ERR_ZONE, "%s: pkt from invalid queue: %d\n",
+				__func__,   queueno);
+			goto fail;
+		}
+
+		index  += actual_length;
+		rcv_pkt_len -= actual_length;
+	} while (rcv_pkt_len > 0);
+
+	return 0;
+fail:
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(rsi_read_pkt);
+
+/**
+ * rsi_tx_scheduler_thread() - This function is a kernel thread to send the
+ *			       packets to the device.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: None.
+ */
+static void rsi_tx_scheduler_thread(struct rsi_common *common)
+{
+	struct rsi_hw *adapter = common->priv;
+	u32 timeout = EVENT_WAIT_FOREVER;
+
+	do {
+		if (adapter->determine_event_timeout)
+			timeout = adapter->determine_event_timeout(adapter);
+		rsi_wait_event(&common->tx_thread.event, timeout);
+		rsi_reset_event(&common->tx_thread.event);
+
+		if (common->init_done)
+			rsi_core_qos_processor(common);
+	} while (atomic_read(&common->tx_thread.thread_done) == 0);
+	kthread_complete_and_exit(&common->tx_thread.completion, 0);
+}
+
+#ifdef CONFIG_RSI_COEX
+enum rsi_host_intf rsi_get_host_intf(void *priv)
+{
+	struct rsi_common *common = priv;
+
+	return common->priv->rsi_host_intf;
+}
+
+void rsi_set_bt_context(void *priv, void *bt_context)
+{
+	struct rsi_common *common = priv;
+
+	common->bt_adapter = bt_context;
+}
+#endif
+
+void rsi_attach_bt(struct rsi_common *common)
+{
+#ifdef CONFIG_RSI_COEX
+	if (rsi_bt_ops.attach(common, &g_proto_ops))
+		rsi_dbg(ERR_ZONE,
+			"Failed to attach BT module\n");
+#endif
+}
+
+/**
+ * rsi_91x_init() - This function initializes os interface operations.
+ * @oper_mode: One of DEV_OPMODE_*.
+ *
+ * Return: Pointer to the adapter structure on success, NULL on failure .
+ */
+struct rsi_hw *rsi_91x_init(u16 oper_mode)
+{
+	struct rsi_hw *adapter = NULL;
+	struct rsi_common *common = NULL;
+	u8 ii = 0;
+
+	adapter = kzalloc_obj(*adapter);
+	if (!adapter)
+		return NULL;
+
+	adapter->priv = kzalloc_obj(*common);
+	if (adapter->priv == NULL) {
+		rsi_dbg(ERR_ZONE, "%s: Failed in allocation of memory\n",
+			__func__);
+		kfree(adapter);
+		return NULL;
+	} else {
+		common = adapter->priv;
+		common->priv = adapter;
+	}
+
+	for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
+		skb_queue_head_init(&common->tx_queue[ii]);
+
+	rsi_init_event(&common->tx_thread.event);
+	mutex_init(&common->mutex);
+	mutex_init(&common->tx_lock);
+	mutex_init(&common->rx_lock);
+	mutex_init(&common->tx_bus_mutex);
+
+	if (rsi_create_kthread(common,
+			       &common->tx_thread,
+			       rsi_tx_scheduler_thread,
+			       "Tx-Thread")) {
+		rsi_dbg(ERR_ZONE, "%s: Unable to init tx thrd\n", __func__);
+		goto err;
+	}
+
+	rsi_default_ps_params(adapter);
+	init_bgscan_params(common);
+	spin_lock_init(&adapter->ps_lock);
+	timer_setup(&common->roc_timer, rsi_roc_timeout, 0);
+	init_completion(&common->wlan_init_completion);
+	adapter->device_model = RSI_DEV_9113;
+	common->oper_mode = oper_mode;
+
+	/* Determine coex mode */
+	switch (common->oper_mode) {
+	case DEV_OPMODE_STA_BT_DUAL:
+	case DEV_OPMODE_STA_BT:
+	case DEV_OPMODE_STA_BT_LE:
+	case DEV_OPMODE_BT_ALONE:
+	case DEV_OPMODE_BT_LE_ALONE:
+	case DEV_OPMODE_BT_DUAL:
+		common->coex_mode = 2;
+		break;
+	case DEV_OPMODE_AP_BT_DUAL:
+	case DEV_OPMODE_AP_BT:
+		common->coex_mode = 4;
+		break;
+	case DEV_OPMODE_WIFI_ALONE:
+		common->coex_mode = 1;
+		break;
+	default:
+		common->oper_mode = 1;
+		common->coex_mode = 1;
+	}
+	rsi_dbg(INFO_ZONE, "%s: oper_mode = %d, coex_mode = %d\n",
+		__func__, common->oper_mode, common->coex_mode);
+
+	adapter->device_model = RSI_DEV_9113;
+#ifdef CONFIG_RSI_COEX
+	if (common->coex_mode > 1) {
+		if (rsi_coex_attach(common)) {
+			rsi_dbg(ERR_ZONE, "Failed to init coex module\n");
+			rsi_kill_thread(&common->tx_thread);
+			goto err;
+		}
+	}
+#endif
+
+	common->init_done = true;
+	return adapter;
+
+err:
+	kfree(common);
+	kfree(adapter);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(rsi_91x_init);
+
+/**
+ * rsi_91x_deinit() - This function de-intializes os intf operations.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: None.
+ */
+void rsi_91x_deinit(struct rsi_hw *adapter)
+{
+	struct rsi_common *common = adapter->priv;
+	u8 ii;
+
+	rsi_dbg(INFO_ZONE, "%s: Performing deinit os ops\n", __func__);
+
+	rsi_kill_thread(&common->tx_thread);
+
+	for (ii = 0; ii < NUM_SOFT_QUEUES; ii++)
+		skb_queue_purge(&common->tx_queue[ii]);
+
+#ifdef CONFIG_RSI_COEX
+	if (common->coex_mode > 1) {
+		if (common->bt_adapter) {
+			rsi_bt_ops.detach(common->bt_adapter);
+			common->bt_adapter = NULL;
+		}
+		rsi_coex_detach(common);
+	}
+#endif
+
+	common->init_done = false;
+
+	kfree(common);
+	kfree(adapter->rsi_dev);
+	kfree(adapter);
+}
+EXPORT_SYMBOL_GPL(rsi_91x_deinit);
+
+MODULE_AUTHOR("Redpine Signals Inc");
+MODULE_DESCRIPTION("Station driver for RSI 91x devices");
+MODULE_VERSION("0.1");
+MODULE_LICENSE("Dual BSD/GPL");

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_ps.c

@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/if.h>
+#include "rsi_debugfs.h"
+#include "rsi_mgmt.h"
+#include "rsi_common.h"
+#include "rsi_ps.h"
+
+char *str_psstate(enum ps_state state)
+{
+	switch (state) {
+	case PS_NONE:
+		return "PS_NONE";
+	case PS_DISABLE_REQ_SENT:
+		return "PS_DISABLE_REQ_SENT";
+	case PS_ENABLE_REQ_SENT:
+		return "PS_ENABLE_REQ_SENT";
+	case PS_ENABLED:
+		return "PS_ENABLED";
+	default:
+		return "INVALID_STATE";
+	}
+}
+
+static inline void rsi_modify_ps_state(struct rsi_hw *adapter,
+				       enum ps_state nstate)
+{
+	rsi_dbg(INFO_ZONE, "PS state changed %s => %s\n",
+		str_psstate(adapter->ps_state),
+		str_psstate(nstate));
+
+	adapter->ps_state = nstate;
+}
+
+void rsi_default_ps_params(struct rsi_hw *adapter)
+{
+	struct rsi_ps_info *ps_info = &adapter->ps_info;
+
+	ps_info->enabled = true;
+	ps_info->sleep_type = RSI_SLEEP_TYPE_LP;
+	ps_info->tx_threshold = 0;
+	ps_info->rx_threshold = 0;
+	ps_info->tx_hysterisis = 0;
+	ps_info->rx_hysterisis = 0;
+	ps_info->monitor_interval = 0;
+	ps_info->listen_interval = RSI_DEF_LISTEN_INTERVAL;
+	ps_info->num_bcns_per_lis_int = 0;
+	ps_info->dtim_interval_duration = 0;
+	ps_info->num_dtims_per_sleep = 0;
+	ps_info->deep_sleep_wakeup_period = RSI_DEF_DS_WAKEUP_PERIOD;
+}
+
+void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
+{
+	if (adapter->ps_state != PS_NONE) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Cannot accept enable PS in %s state\n",
+			__func__, str_psstate(adapter->ps_state));
+		return;
+	}
+
+	if (rsi_send_ps_request(adapter, true, vif)) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to send PS request to device\n",
+			__func__);
+		return;
+	}
+
+	rsi_modify_ps_state(adapter, PS_ENABLE_REQ_SENT);
+}
+
+/* This function is used to disable power save */
+void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif)
+{
+	if (adapter->ps_state != PS_ENABLED) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Cannot accept disable PS in %s state\n",
+			__func__, str_psstate(adapter->ps_state));
+		return;
+	}
+
+	if (rsi_send_ps_request(adapter, false, vif)) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to send PS request to device\n",
+			__func__);
+		return;
+	}
+
+	rsi_modify_ps_state(adapter, PS_DISABLE_REQ_SENT);
+}
+
+void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif)
+{
+	int ret;
+
+	if (adapter->ps_state != PS_ENABLED)
+		return;
+
+	ret = rsi_send_ps_request(adapter, false, vif);
+	if (!ret)
+		ret = rsi_send_ps_request(adapter, true, vif);
+	if (ret)
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to send PS request to device\n",
+			__func__);
+}
+
+int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg)
+{
+	u16 cfm_type = get_unaligned_le16(msg + PS_CONFIRM_INDEX);
+
+	switch (cfm_type) {
+	case RSI_SLEEP_REQUEST:
+		if (adapter->ps_state == PS_ENABLE_REQ_SENT)
+			rsi_modify_ps_state(adapter, PS_ENABLED);
+		break;
+	case RSI_WAKEUP_REQUEST:
+		if (adapter->ps_state == PS_DISABLE_REQ_SENT)
+			rsi_modify_ps_state(adapter, PS_NONE);
+		break;
+	default:
+		rsi_dbg(ERR_ZONE,
+			"Invalid PS confirm type %x in state %s\n",
+			cfm_type, str_psstate(adapter->ps_state));
+		return -1;
+	}
+
+	return 0;
+}
+

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_sdio_ops.c

@@ -0,0 +1,415 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <linux/firmware.h>
+#include <net/rsi_91x.h>
+#include "rsi_sdio.h"
+#include "rsi_common.h"
+
+/**
+ * rsi_sdio_master_access_msword() - This function sets the AHB master access
+ *				     MS word in the SDIO slave registers.
+ * @adapter: Pointer to the adapter structure.
+ * @ms_word: ms word need to be initialized.
+ *
+ * Return: status: 0 on success, -1 on failure.
+ */
+int rsi_sdio_master_access_msword(struct rsi_hw *adapter, u16 ms_word)
+{
+	u8 byte;
+	u8 function = 0;
+	int status = 0;
+
+	byte = (u8)(ms_word & 0x00FF);
+
+	rsi_dbg(INIT_ZONE,
+		"%s: MASTER_ACCESS_MSBYTE:0x%x\n", __func__, byte);
+
+	status = rsi_sdio_write_register(adapter,
+					 function,
+					 SDIO_MASTER_ACCESS_MSBYTE,
+					 &byte);
+	if (status) {
+		rsi_dbg(ERR_ZONE,
+			"%s: fail to access MASTER_ACCESS_MSBYTE\n",
+			__func__);
+		return -1;
+	}
+
+	byte = (u8)(ms_word >> 8);
+
+	rsi_dbg(INIT_ZONE, "%s:MASTER_ACCESS_LSBYTE:0x%x\n", __func__, byte);
+	status = rsi_sdio_write_register(adapter,
+					 function,
+					 SDIO_MASTER_ACCESS_LSBYTE,
+					 &byte);
+	return status;
+}
+
+static void rsi_rx_handler(struct rsi_hw *adapter);
+
+void rsi_sdio_rx_thread(struct rsi_common *common)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct rsi_91x_sdiodev *sdev = adapter->rsi_dev;
+
+	do {
+		rsi_wait_event(&sdev->rx_thread.event, EVENT_WAIT_FOREVER);
+		rsi_reset_event(&sdev->rx_thread.event);
+		rsi_rx_handler(adapter);
+	} while (!atomic_read(&sdev->rx_thread.thread_done));
+
+	rsi_dbg(INFO_ZONE, "%s: Terminated SDIO RX thread\n", __func__);
+	atomic_inc(&sdev->rx_thread.thread_done);
+	kthread_complete_and_exit(&sdev->rx_thread.completion, 0);
+}
+
+/**
+ * rsi_process_pkt() - This Function reads rx_blocks register and figures out
+ *		       the size of the rx pkt.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: 0 on success, -1 on failure.
+ */
+static int rsi_process_pkt(struct rsi_common *common)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+	u8 num_blks = 0;
+	u32 rcv_pkt_len = 0;
+	int status = 0;
+	u8 value = 0;
+
+	num_blks = ((adapter->interrupt_status & 1) |
+			((adapter->interrupt_status >> RECV_NUM_BLOCKS) << 1));
+
+	if (!num_blks) {
+		status = rsi_sdio_read_register(adapter,
+						SDIO_RX_NUM_BLOCKS_REG,
+						&value);
+		if (status) {
+			rsi_dbg(ERR_ZONE,
+				"%s: Failed to read pkt length from the card:\n",
+				__func__);
+			return status;
+		}
+		num_blks = value & 0x1f;
+	}
+
+	if (dev->write_fail == 2)
+		rsi_sdio_ack_intr(common->priv, (1 << MSDU_PKT_PENDING));
+
+	if (unlikely(!num_blks)) {
+		dev->write_fail = 2;
+		return -1;
+	}
+
+	rcv_pkt_len = (num_blks * 256);
+
+	status = rsi_sdio_host_intf_read_pkt(adapter, dev->pktbuffer,
+					     rcv_pkt_len);
+	if (status) {
+		rsi_dbg(ERR_ZONE, "%s: Failed to read packet from card\n",
+			__func__);
+		return status;
+	}
+
+	status = rsi_read_pkt(common, dev->pktbuffer, rcv_pkt_len);
+	if (status) {
+		rsi_dbg(ERR_ZONE, "Failed to read the packet\n");
+		return status;
+	}
+
+	return 0;
+}
+
+/**
+ * rsi_init_sdio_slave_regs() - This function does the actual initialization
+ *				of SDBUS slave registers.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: status: 0 on success, -1 on failure.
+ */
+int rsi_init_sdio_slave_regs(struct rsi_hw *adapter)
+{
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+	u8 function = 0;
+	u8 byte;
+	int status = 0;
+
+	if (dev->next_read_delay) {
+		byte = dev->next_read_delay;
+		status = rsi_sdio_write_register(adapter,
+						 function,
+						 SDIO_NXT_RD_DELAY2,
+						 &byte);
+		if (status) {
+			rsi_dbg(ERR_ZONE,
+				"%s: Failed to write SDIO_NXT_RD_DELAY2\n",
+				__func__);
+			return -1;
+		}
+	}
+
+	if (dev->sdio_high_speed_enable) {
+		rsi_dbg(INIT_ZONE, "%s: Enabling SDIO High speed\n", __func__);
+		byte = 0x3;
+
+		status = rsi_sdio_write_register(adapter,
+						 function,
+						 SDIO_REG_HIGH_SPEED,
+						 &byte);
+		if (status) {
+			rsi_dbg(ERR_ZONE,
+				"%s: Failed to enable SDIO high speed\n",
+				__func__);
+			return -1;
+		}
+	}
+
+	/* This tells SDIO FIFO when to start read to host */
+	rsi_dbg(INIT_ZONE, "%s: Initializing SDIO read start level\n", __func__);
+	byte = 0x24;
+
+	status = rsi_sdio_write_register(adapter,
+					 function,
+					 SDIO_READ_START_LVL,
+					 &byte);
+	if (status) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to write SDIO_READ_START_LVL\n", __func__);
+		return -1;
+	}
+
+	rsi_dbg(INIT_ZONE, "%s: Initializing FIFO ctrl registers\n", __func__);
+	byte = (128 - 32);
+
+	status = rsi_sdio_write_register(adapter,
+					 function,
+					 SDIO_READ_FIFO_CTL,
+					 &byte);
+	if (status) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to write SDIO_READ_FIFO_CTL\n", __func__);
+		return -1;
+	}
+
+	byte = 32;
+	status = rsi_sdio_write_register(adapter,
+					 function,
+					 SDIO_WRITE_FIFO_CTL,
+					 &byte);
+	if (status) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to write SDIO_WRITE_FIFO_CTL\n", __func__);
+		return -1;
+	}
+
+	return 0;
+}
+
+/**
+ * rsi_rx_handler() - Read and process SDIO interrupts.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: None.
+ */
+static void rsi_rx_handler(struct rsi_hw *adapter)
+{
+	struct rsi_common *common = adapter->priv;
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+	int status;
+	u8 isr_status = 0;
+	u8 fw_status = 0;
+
+	dev->rx_info.sdio_int_counter++;
+
+	do {
+		mutex_lock(&common->rx_lock);
+		status = rsi_sdio_read_register(common->priv,
+						RSI_FN1_INT_REGISTER,
+						&isr_status);
+		if (status) {
+			rsi_dbg(ERR_ZONE,
+				"%s: Failed to Read Intr Status Register\n",
+				__func__);
+			mutex_unlock(&common->rx_lock);
+			return;
+		}
+		adapter->interrupt_status = isr_status;
+
+		if (isr_status == 0) {
+			rsi_set_event(&common->tx_thread.event);
+			dev->rx_info.sdio_intr_status_zero++;
+			mutex_unlock(&common->rx_lock);
+			return;
+		}
+
+		rsi_dbg(ISR_ZONE, "%s: Intr_status = %x %d %d\n",
+			__func__, isr_status, (1 << MSDU_PKT_PENDING),
+			(1 << FW_ASSERT_IND));
+
+		if (isr_status & BIT(PKT_BUFF_AVAILABLE)) {
+			status = rsi_sdio_check_buffer_status(adapter, 0);
+			if (status < 0)
+				rsi_dbg(ERR_ZONE,
+					"%s: Failed to check buffer status\n",
+					__func__);
+			rsi_sdio_ack_intr(common->priv,
+					  BIT(PKT_BUFF_AVAILABLE));
+			rsi_set_event(&common->tx_thread.event);
+
+			rsi_dbg(ISR_ZONE, "%s: ==> BUFFER_AVAILABLE <==\n",
+				__func__);
+			dev->buff_status_updated = true;
+
+			isr_status &= ~BIT(PKT_BUFF_AVAILABLE);
+		}
+
+		if (isr_status & BIT(FW_ASSERT_IND)) {
+			rsi_dbg(ERR_ZONE, "%s: ==> FIRMWARE Assert <==\n",
+				__func__);
+			status = rsi_sdio_read_register(common->priv,
+							SDIO_FW_STATUS_REG,
+							&fw_status);
+			if (status) {
+				rsi_dbg(ERR_ZONE,
+					"%s: Failed to read f/w reg\n",
+					__func__);
+			} else {
+				rsi_dbg(ERR_ZONE,
+					"%s: Firmware Status is 0x%x\n",
+					__func__, fw_status);
+				rsi_sdio_ack_intr(common->priv,
+						  BIT(FW_ASSERT_IND));
+			}
+
+			common->fsm_state = FSM_CARD_NOT_READY;
+
+			isr_status &= ~BIT(FW_ASSERT_IND);
+		}
+
+		if (isr_status & BIT(MSDU_PKT_PENDING)) {
+			rsi_dbg(ISR_ZONE, "Pkt pending interrupt\n");
+			dev->rx_info.total_sdio_msdu_pending_intr++;
+
+			status = rsi_process_pkt(common);
+			if (status) {
+				rsi_dbg(ERR_ZONE, "%s: Failed to read pkt\n",
+					__func__);
+				mutex_unlock(&common->rx_lock);
+				return;
+			}
+
+			isr_status &= ~BIT(MSDU_PKT_PENDING);
+		}
+
+		if (isr_status) {
+			rsi_sdio_ack_intr(common->priv, isr_status);
+			dev->rx_info.total_sdio_unknown_intr++;
+			isr_status = 0;
+			rsi_dbg(ISR_ZONE, "Unknown Interrupt %x\n",
+				isr_status);
+		}
+
+		mutex_unlock(&common->rx_lock);
+	} while (1);
+}
+
+/* This function is used to read buffer status register and
+ * set relevant fields in rsi_91x_sdiodev struct.
+ */
+int rsi_sdio_check_buffer_status(struct rsi_hw *adapter, u8 q_num)
+{
+	struct rsi_common *common = adapter->priv;
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+	u8 buf_status = 0;
+	int status = 0;
+	static int counter = 4;
+
+	if (!dev->buff_status_updated && counter) {
+		counter--;
+		goto out;
+	}
+
+	dev->buff_status_updated = false;
+	status = rsi_sdio_read_register(common->priv,
+					RSI_DEVICE_BUFFER_STATUS_REGISTER,
+					&buf_status);
+
+	if (status) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Failed to read status register\n", __func__);
+		return -1;
+	}
+
+	if (buf_status & (BIT(PKT_MGMT_BUFF_FULL))) {
+		if (!dev->rx_info.mgmt_buffer_full)
+			dev->rx_info.mgmt_buf_full_counter++;
+		dev->rx_info.mgmt_buffer_full = true;
+	} else {
+		dev->rx_info.mgmt_buffer_full = false;
+	}
+
+	if (buf_status & (BIT(PKT_BUFF_FULL))) {
+		if (!dev->rx_info.buffer_full)
+			dev->rx_info.buf_full_counter++;
+		dev->rx_info.buffer_full = true;
+	} else {
+		dev->rx_info.buffer_full = false;
+	}
+
+	if (buf_status & (BIT(PKT_BUFF_SEMI_FULL))) {
+		if (!dev->rx_info.semi_buffer_full)
+			dev->rx_info.buf_semi_full_counter++;
+		dev->rx_info.semi_buffer_full = true;
+	} else {
+		dev->rx_info.semi_buffer_full = false;
+	}
+
+	if (dev->rx_info.mgmt_buffer_full || dev->rx_info.buf_full_counter)
+		counter = 1;
+	else
+		counter = 4;
+
+out:
+	if ((q_num == MGMT_SOFT_Q) && (dev->rx_info.mgmt_buffer_full))
+		return QUEUE_FULL;
+
+	if ((q_num < MGMT_SOFT_Q) && (dev->rx_info.buffer_full))
+		return QUEUE_FULL;
+
+	return QUEUE_NOT_FULL;
+}
+
+/**
+ * rsi_sdio_determine_event_timeout() - This Function determines the event
+ *					timeout duration.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: timeout duration is returned.
+ */
+int rsi_sdio_determine_event_timeout(struct rsi_hw *adapter)
+{
+	struct rsi_91x_sdiodev *dev = adapter->rsi_dev;
+
+	/* Once buffer full is seen, event timeout to occur every 2 msecs */
+	if (dev->rx_info.buffer_full)
+		return 2;
+
+	return EVENT_WAIT_FOREVER;
+}

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_usb.c

@@ -0,0 +1,939 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <net/rsi_91x.h>
+#include "rsi_usb.h"
+#include "rsi_hal.h"
+#include "rsi_coex.h"
+
+/* Default operating mode is wlan STA + BT */
+static u16 dev_oper_mode = DEV_OPMODE_STA_BT_DUAL;
+module_param(dev_oper_mode, ushort, 0444);
+MODULE_PARM_DESC(dev_oper_mode, DEV_OPMODE_PARAM_DESC);
+
+static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t flags);
+
+/**
+ * rsi_usb_card_write() - This function writes to the USB Card.
+ * @adapter: Pointer to the adapter structure.
+ * @buf: Pointer to the buffer from where the data has to be taken.
+ * @len: Length to be written.
+ * @endpoint: Type of endpoint.
+ *
+ * Return: status: 0 on success, a negative error code on failure.
+ */
+static int rsi_usb_card_write(struct rsi_hw *adapter,
+			      u8 *buf,
+			      u16 len,
+			      u8 endpoint)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	int status;
+	u8 *seg = dev->tx_buffer;
+	int transfer;
+	int ep = dev->bulkout_endpoint_addr[endpoint - 1];
+
+	memset(seg, 0, len + RSI_USB_TX_HEAD_ROOM);
+	memcpy(seg + RSI_USB_TX_HEAD_ROOM, buf, len);
+	len += RSI_USB_TX_HEAD_ROOM;
+	transfer = len;
+	status = usb_bulk_msg(dev->usbdev,
+			      usb_sndbulkpipe(dev->usbdev, ep),
+			      (void *)seg,
+			      (int)len,
+			      &transfer,
+			      USB_CTRL_SET_TIMEOUT);
+
+	if (status < 0) {
+		rsi_dbg(ERR_ZONE,
+			"Card write failed with error code :%10d\n", status);
+		dev->write_fail = 1;
+	}
+	return status;
+}
+
+/**
+ * rsi_write_multiple() - This function writes multiple bytes of information
+ *			  to the USB card.
+ * @adapter: Pointer to the adapter structure.
+ * @endpoint: Type of endpoint.
+ * @data: Pointer to the data that has to be written.
+ * @count: Number of multiple bytes to be written.
+ *
+ * Return: 0 on success, a negative error code on failure.
+ */
+static int rsi_write_multiple(struct rsi_hw *adapter,
+			      u8 endpoint,
+			      u8 *data,
+			      u32 count)
+{
+	struct rsi_91x_usbdev *dev;
+
+	if (!adapter)
+		return -ENODEV;
+
+	if (endpoint == 0)
+		return -EINVAL;
+
+	dev = adapter->rsi_dev;
+	if (dev->write_fail)
+		return -ENETDOWN;
+
+	return rsi_usb_card_write(adapter, data, count, endpoint);
+}
+
+/**
+ * rsi_find_bulk_in_and_out_endpoints() - This function initializes the bulk
+ *					  endpoints to the device.
+ * @interface: Pointer to the USB interface structure.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: ret_val: 0 on success, -ENOMEM on failure.
+ */
+static int rsi_find_bulk_in_and_out_endpoints(struct usb_interface *interface,
+					      struct rsi_hw *adapter)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	__le16 buffer_size;
+	int ii, bin_found = 0, bout_found = 0;
+
+	iface_desc = interface->cur_altsetting;
+
+	for (ii = 0; ii < iface_desc->desc.bNumEndpoints; ++ii) {
+		endpoint = &(iface_desc->endpoint[ii].desc);
+
+		if (!dev->bulkin_endpoint_addr[bin_found] &&
+		    (endpoint->bEndpointAddress & USB_DIR_IN) &&
+		    ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		    USB_ENDPOINT_XFER_BULK)) {
+			buffer_size = endpoint->wMaxPacketSize;
+			dev->bulkin_size[bin_found] = buffer_size;
+			dev->bulkin_endpoint_addr[bin_found] =
+				endpoint->bEndpointAddress;
+			bin_found++;
+		}
+
+		if (!dev->bulkout_endpoint_addr[bout_found] &&
+		    !(endpoint->bEndpointAddress & USB_DIR_IN) &&
+		    ((endpoint->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+		    USB_ENDPOINT_XFER_BULK)) {
+			buffer_size = endpoint->wMaxPacketSize;
+			dev->bulkout_endpoint_addr[bout_found] =
+				endpoint->bEndpointAddress;
+			dev->bulkout_size[bout_found] = buffer_size;
+			bout_found++;
+		}
+
+		if (bin_found >= MAX_BULK_EP || bout_found >= MAX_BULK_EP)
+			break;
+	}
+
+	if (!(dev->bulkin_endpoint_addr[0] && dev->bulkout_endpoint_addr[0])) {
+		dev_err(&interface->dev, "missing wlan bulk endpoints\n");
+		return -EINVAL;
+	}
+
+	if (adapter->priv->coex_mode > 1) {
+		if (!dev->bulkin_endpoint_addr[1]) {
+			dev_err(&interface->dev, "missing bt bulk-in endpoint\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+#define RSI_USB_REQ_OUT	(USB_TYPE_VENDOR | USB_DIR_OUT | USB_RECIP_DEVICE)
+#define RSI_USB_REQ_IN	(USB_TYPE_VENDOR | USB_DIR_IN | USB_RECIP_DEVICE)
+
+/* rsi_usb_reg_read() - This function reads data from given register address.
+ * @usbdev: Pointer to the usb_device structure.
+ * @reg: Address of the register to be read.
+ * @value: Value to be read.
+ * @len: length of data to be read.
+ *
+ * Return: status: 0 on success, a negative error code on failure.
+ */
+static int rsi_usb_reg_read(struct usb_device *usbdev,
+			    u32 reg,
+			    u16 *value,
+			    u16 len)
+{
+	u8 *buf;
+	int status = -ENOMEM;
+
+	if (len > RSI_USB_CTRL_BUF_SIZE)
+		return -EINVAL;
+
+	buf  = kmalloc(RSI_USB_CTRL_BUF_SIZE, GFP_KERNEL);
+	if (!buf)
+		return status;
+
+	status = usb_control_msg(usbdev,
+				 usb_rcvctrlpipe(usbdev, 0),
+				 USB_VENDOR_REGISTER_READ,
+				 RSI_USB_REQ_IN,
+				 ((reg & 0xffff0000) >> 16), (reg & 0xffff),
+				 (void *)buf,
+				 len,
+				 USB_CTRL_GET_TIMEOUT);
+
+	*value = (buf[0] | (buf[1] << 8));
+	if (status < 0) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Reg read failed with error code :%d\n",
+			__func__, status);
+	}
+	kfree(buf);
+
+	return status;
+}
+
+/**
+ * rsi_usb_reg_write() - This function writes the given data into the given
+ *			 register address.
+ * @usbdev: Pointer to the usb_device structure.
+ * @reg: Address of the register.
+ * @value: Value to write.
+ * @len: Length of data to be written.
+ *
+ * Return: status: 0 on success, a negative error code on failure.
+ */
+static int rsi_usb_reg_write(struct usb_device *usbdev,
+			     u32 reg,
+			     u32 value,
+			     u16 len)
+{
+	u8 *usb_reg_buf;
+	int status = -ENOMEM;
+
+	if (len > RSI_USB_CTRL_BUF_SIZE)
+		return -EINVAL;
+
+	usb_reg_buf  = kmalloc(RSI_USB_CTRL_BUF_SIZE, GFP_KERNEL);
+	if (!usb_reg_buf)
+		return status;
+
+	usb_reg_buf[0] = value & 0x00ff;
+	usb_reg_buf[1] = (value & 0xff00) >> 8;
+	usb_reg_buf[2] = (value & 0x00ff0000) >> 16;
+	usb_reg_buf[3] = (value & 0xff000000) >> 24;
+
+	status = usb_control_msg(usbdev,
+				 usb_sndctrlpipe(usbdev, 0),
+				 USB_VENDOR_REGISTER_WRITE,
+				 RSI_USB_REQ_OUT,
+				 (reg & 0xffff0000) >> 16,
+				 reg & 0xffff,
+				 (void *)usb_reg_buf,
+				 len,
+				 USB_CTRL_SET_TIMEOUT);
+	if (status < 0) {
+		rsi_dbg(ERR_ZONE,
+			"%s: Reg write failed with error code :%d\n",
+			__func__, status);
+	}
+	kfree(usb_reg_buf);
+
+	return status;
+}
+
+/**
+ * rsi_rx_done_handler() - This function is called when a packet is received
+ *			   from USB stack. This is callback to receive done.
+ * @urb: Received URB.
+ *
+ * Return: None.
+ */
+static void rsi_rx_done_handler(struct urb *urb)
+{
+	struct rx_usb_ctrl_block *rx_cb = urb->context;
+	struct rsi_91x_usbdev *dev = (struct rsi_91x_usbdev *)rx_cb->data;
+	int status = -EINVAL;
+
+	if (!rx_cb->rx_skb)
+		return;
+
+	if (urb->status) {
+		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
+		return;
+	}
+
+	if (urb->actual_length <= 0 ||
+	    urb->actual_length > rx_cb->rx_skb->len) {
+		rsi_dbg(INFO_ZONE, "%s: Invalid packet length = %d\n",
+			__func__, urb->actual_length);
+		goto out;
+	}
+	if (skb_queue_len(&dev->rx_q) >= RSI_MAX_RX_PKTS) {
+		rsi_dbg(INFO_ZONE, "Max RX packets reached\n");
+		goto out;
+	}
+	skb_trim(rx_cb->rx_skb, urb->actual_length);
+	skb_queue_tail(&dev->rx_q, rx_cb->rx_skb);
+
+	rsi_set_event(&dev->rx_thread.event);
+	status = 0;
+
+out:
+	if (rsi_rx_urb_submit(dev->priv, rx_cb->ep_num, GFP_ATOMIC))
+		rsi_dbg(ERR_ZONE, "%s: Failed in urb submission", __func__);
+
+	if (status) {
+		dev_kfree_skb(rx_cb->rx_skb);
+		rx_cb->rx_skb = NULL;
+	}
+}
+
+static void rsi_rx_urb_kill(struct rsi_hw *adapter, u8 ep_num)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	struct rx_usb_ctrl_block *rx_cb = &dev->rx_cb[ep_num - 1];
+	struct urb *urb = rx_cb->rx_urb;
+
+	usb_kill_urb(urb);
+}
+
+/**
+ * rsi_rx_urb_submit() - This function submits the given URB to the USB stack.
+ * @adapter: Pointer to the adapter structure.
+ * @ep_num: Endpoint number.
+ * @mem_flags: The type of memory to allocate.
+ *
+ * Return: 0 on success, a negative error code on failure.
+ */
+static int rsi_rx_urb_submit(struct rsi_hw *adapter, u8 ep_num, gfp_t mem_flags)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	struct rx_usb_ctrl_block *rx_cb = &dev->rx_cb[ep_num - 1];
+	struct urb *urb = rx_cb->rx_urb;
+	int status;
+	struct sk_buff *skb;
+	u8 dword_align_bytes = 0;
+
+	skb = dev_alloc_skb(RSI_MAX_RX_USB_PKT_SIZE);
+	if (!skb)
+		return -ENOMEM;
+	skb_reserve(skb, MAX_DWORD_ALIGN_BYTES);
+	skb_put(skb, RSI_MAX_RX_USB_PKT_SIZE - MAX_DWORD_ALIGN_BYTES);
+	dword_align_bytes = (unsigned long)skb->data & 0x3f;
+	if (dword_align_bytes > 0)
+		skb_push(skb, dword_align_bytes);
+	urb->transfer_buffer = skb->data;
+	rx_cb->rx_skb = skb;
+
+	usb_fill_bulk_urb(urb,
+			  dev->usbdev,
+			  usb_rcvbulkpipe(dev->usbdev,
+			  dev->bulkin_endpoint_addr[ep_num - 1]),
+			  urb->transfer_buffer,
+			  skb->len,
+			  rsi_rx_done_handler,
+			  rx_cb);
+
+	status = usb_submit_urb(urb, mem_flags);
+	if (status) {
+		rsi_dbg(ERR_ZONE, "%s: Failed in urb submission\n", __func__);
+		dev_kfree_skb(skb);
+	}
+
+	return status;
+}
+
+static int rsi_usb_read_register_multiple(struct rsi_hw *adapter, u32 addr,
+					  u8 *data, u16 count)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	u8 *buf;
+	u16 transfer;
+	int status;
+
+	if (!addr)
+		return -EINVAL;
+
+	buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	while (count) {
+		transfer = min_t(u16, count, RSI_USB_BUF_SIZE);
+		status = usb_control_msg(dev->usbdev,
+					 usb_rcvctrlpipe(dev->usbdev, 0),
+					 USB_VENDOR_REGISTER_READ,
+					 RSI_USB_REQ_IN,
+					 ((addr & 0xffff0000) >> 16),
+					 (addr & 0xffff), (void *)buf,
+					 transfer, USB_CTRL_GET_TIMEOUT);
+		if (status < 0) {
+			rsi_dbg(ERR_ZONE,
+				"Reg read failed with error code :%d\n",
+				 status);
+			kfree(buf);
+			return status;
+		}
+		memcpy(data, buf, transfer);
+		count -= transfer;
+		data += transfer;
+		addr += transfer;
+	}
+	kfree(buf);
+	return 0;
+}
+
+/**
+ * rsi_usb_write_register_multiple() - This function writes multiple bytes of
+ *				       information to multiple registers.
+ * @adapter: Pointer to the adapter structure.
+ * @addr: Address of the register.
+ * @data: Pointer to the data that has to be written.
+ * @count: Number of multiple bytes to be written on to the registers.
+ *
+ * Return: status: 0 on success, a negative error code on failure.
+ */
+static int rsi_usb_write_register_multiple(struct rsi_hw *adapter, u32 addr,
+					   u8 *data, u16 count)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	u8 *buf;
+	u16 transfer;
+	int status = 0;
+
+	buf = kzalloc(RSI_USB_BUF_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	while (count) {
+		transfer = min_t(u16, count, RSI_USB_BUF_SIZE);
+		memcpy(buf, data, transfer);
+		status = usb_control_msg(dev->usbdev,
+					 usb_sndctrlpipe(dev->usbdev, 0),
+					 USB_VENDOR_REGISTER_WRITE,
+					 RSI_USB_REQ_OUT,
+					 ((addr & 0xffff0000) >> 16),
+					 (addr & 0xffff),
+					 (void *)buf,
+					 transfer,
+					 USB_CTRL_SET_TIMEOUT);
+		if (status < 0) {
+			rsi_dbg(ERR_ZONE,
+				"Reg write failed with error code :%d\n",
+				status);
+			kfree(buf);
+			return status;
+		}
+		count -= transfer;
+		data += transfer;
+		addr += transfer;
+	}
+
+	kfree(buf);
+	return 0;
+}
+
+/**
+ *rsi_usb_host_intf_write_pkt() - This function writes the packet to the
+ *				   USB card.
+ * @adapter: Pointer to the adapter structure.
+ * @pkt: Pointer to the data to be written on to the card.
+ * @len: Length of the data to be written on to the card.
+ *
+ * Return: 0 on success, a negative error code on failure.
+ */
+static int rsi_usb_host_intf_write_pkt(struct rsi_hw *adapter,
+				       u8 *pkt,
+				       u32 len)
+{
+	u32 queueno = ((pkt[1] >> 4) & 0x7);
+	u8 endpoint;
+
+	endpoint = ((queueno == RSI_WIFI_MGMT_Q || queueno == RSI_WIFI_DATA_Q ||
+		     queueno == RSI_COEX_Q) ? WLAN_EP : BT_EP);
+
+	return rsi_write_multiple(adapter,
+				  endpoint,
+				  (u8 *)pkt,
+				  len);
+}
+
+static int rsi_usb_master_reg_read(struct rsi_hw *adapter, u32 reg,
+				   u32 *value, u16 len)
+{
+	struct usb_device *usbdev =
+		((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev;
+	u16 temp;
+	int ret;
+
+	ret = rsi_usb_reg_read(usbdev, reg, &temp, len);
+	if (ret < 0)
+		return ret;
+	*value = temp;
+
+	return 0;
+}
+
+static int rsi_usb_master_reg_write(struct rsi_hw *adapter,
+				    unsigned long reg,
+				    unsigned long value, u16 len)
+{
+	struct usb_device *usbdev =
+		((struct rsi_91x_usbdev *)adapter->rsi_dev)->usbdev;
+
+	return rsi_usb_reg_write(usbdev, reg, value, len);
+}
+
+static int rsi_usb_load_data_master_write(struct rsi_hw *adapter,
+					  u32 base_address,
+					  u32 instructions_sz, u16 block_size,
+					  u8 *ta_firmware)
+{
+	u16 num_blocks;
+	u32 cur_indx, i;
+	u8 temp_buf[256];
+	int status;
+
+	num_blocks = instructions_sz / block_size;
+	rsi_dbg(INFO_ZONE, "num_blocks: %d\n", num_blocks);
+
+	for (cur_indx = 0, i = 0; i < num_blocks; i++, cur_indx += block_size) {
+		memcpy(temp_buf, ta_firmware + cur_indx, block_size);
+		status = rsi_usb_write_register_multiple(adapter, base_address,
+							 (u8 *)(temp_buf),
+							 block_size);
+		if (status < 0)
+			return status;
+
+		rsi_dbg(INFO_ZONE, "%s: loading block: %d\n", __func__, i);
+		base_address += block_size;
+	}
+
+	if (instructions_sz % block_size) {
+		memset(temp_buf, 0, block_size);
+		memcpy(temp_buf, ta_firmware + cur_indx,
+		       instructions_sz % block_size);
+		status = rsi_usb_write_register_multiple
+						(adapter, base_address,
+						 (u8 *)temp_buf,
+						 instructions_sz % block_size);
+		if (status < 0)
+			return status;
+		rsi_dbg(INFO_ZONE,
+			"Written Last Block in Address 0x%x Successfully\n",
+			cur_indx);
+	}
+	return 0;
+}
+
+static struct rsi_host_intf_ops usb_host_intf_ops = {
+	.write_pkt		= rsi_usb_host_intf_write_pkt,
+	.read_reg_multiple	= rsi_usb_read_register_multiple,
+	.write_reg_multiple	= rsi_usb_write_register_multiple,
+	.master_reg_read	= rsi_usb_master_reg_read,
+	.master_reg_write	= rsi_usb_master_reg_write,
+	.load_data_master_write	= rsi_usb_load_data_master_write,
+};
+
+/**
+ * rsi_deinit_usb_interface() - This function deinitializes the usb interface.
+ * @adapter: Pointer to the adapter structure.
+ *
+ * Return: None.
+ */
+static void rsi_deinit_usb_interface(struct rsi_hw *adapter)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+
+	rsi_kill_thread(&dev->rx_thread);
+
+	usb_free_urb(dev->rx_cb[0].rx_urb);
+	if (adapter->priv->coex_mode > 1)
+		usb_free_urb(dev->rx_cb[1].rx_urb);
+
+	kfree(dev->tx_buffer);
+}
+
+static int rsi_usb_init_rx(struct rsi_hw *adapter)
+{
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	struct rx_usb_ctrl_block *rx_cb;
+	u8 idx, num_rx_cb;
+
+	num_rx_cb = (adapter->priv->coex_mode > 1 ? 2 : 1);
+
+	for (idx = 0; idx < num_rx_cb; idx++) {
+		rx_cb = &dev->rx_cb[idx];
+
+		rx_cb->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
+		if (!rx_cb->rx_urb) {
+			rsi_dbg(ERR_ZONE, "Failed alloc rx urb[%d]\n", idx);
+			goto err;
+		}
+		rx_cb->ep_num = idx + 1;
+		rx_cb->data = (void *)dev;
+	}
+	skb_queue_head_init(&dev->rx_q);
+	rsi_init_event(&dev->rx_thread.event);
+	if (rsi_create_kthread(adapter->priv, &dev->rx_thread,
+			       rsi_usb_rx_thread, "RX-Thread")) {
+		rsi_dbg(ERR_ZONE, "%s: Unable to init rx thrd\n", __func__);
+		goto err;
+	}
+
+	return 0;
+
+err:
+	usb_free_urb(dev->rx_cb[0].rx_urb);
+	if (adapter->priv->coex_mode > 1)
+		usb_free_urb(dev->rx_cb[1].rx_urb);
+
+	return -1;
+}
+
+/**
+ * rsi_init_usb_interface() - This function initializes the usb interface.
+ * @adapter: Pointer to the adapter structure.
+ * @pfunction: Pointer to USB interface structure.
+ *
+ * Return: 0 on success, a negative error code on failure.
+ */
+static int rsi_init_usb_interface(struct rsi_hw *adapter,
+				  struct usb_interface *pfunction)
+{
+	struct rsi_91x_usbdev *rsi_dev;
+	int status;
+
+	rsi_dev = kzalloc_obj(*rsi_dev);
+	if (!rsi_dev)
+		return -ENOMEM;
+
+	adapter->rsi_dev = rsi_dev;
+	rsi_dev->usbdev = interface_to_usbdev(pfunction);
+	rsi_dev->priv = (void *)adapter;
+
+	if (rsi_find_bulk_in_and_out_endpoints(pfunction, adapter)) {
+		status = -EINVAL;
+		goto fail_eps;
+	}
+
+	adapter->device = &pfunction->dev;
+	usb_set_intfdata(pfunction, adapter);
+
+	rsi_dev->tx_buffer = kmalloc(2048, GFP_KERNEL);
+	if (!rsi_dev->tx_buffer) {
+		status = -ENOMEM;
+		goto fail_eps;
+	}
+
+	if (rsi_usb_init_rx(adapter)) {
+		rsi_dbg(ERR_ZONE, "Failed to init RX handle\n");
+		status = -ENOMEM;
+		goto fail_rx;
+	}
+
+	rsi_dev->tx_blk_size = 252;
+	adapter->block_size = rsi_dev->tx_blk_size;
+
+	/* Initializing function callbacks */
+	adapter->check_hw_queue_status = rsi_usb_check_queue_status;
+	adapter->determine_event_timeout = rsi_usb_event_timeout;
+	adapter->rsi_host_intf = RSI_HOST_INTF_USB;
+	adapter->host_intf_ops = &usb_host_intf_ops;
+
+#ifdef CONFIG_RSI_DEBUGFS
+	/* In USB, one less than the MAX_DEBUGFS_ENTRIES entries is required */
+	adapter->num_debugfs_entries = (MAX_DEBUGFS_ENTRIES - 1);
+#endif
+
+	rsi_dbg(INIT_ZONE, "%s: Enabled the interface\n", __func__);
+	return 0;
+
+fail_rx:
+	kfree(rsi_dev->tx_buffer);
+
+fail_eps:
+
+	return status;
+}
+
+static int usb_ulp_read_write(struct rsi_hw *adapter, u16 addr, u32 data,
+			      u16 len_in_bits)
+{
+	int ret;
+
+	ret = rsi_usb_master_reg_write
+			(adapter, RSI_GSPI_DATA_REG1,
+			 ((addr << 6) | ((data >> 16) & 0xffff)), 2);
+	if (ret < 0)
+		return ret;
+
+	ret = rsi_usb_master_reg_write(adapter, RSI_GSPI_DATA_REG0,
+				       (data & 0xffff), 2);
+	if (ret < 0)
+		return ret;
+
+	/* Initializing GSPI for ULP read/writes */
+	rsi_usb_master_reg_write(adapter, RSI_GSPI_CTRL_REG0,
+				 RSI_GSPI_CTRL_REG0_VALUE, 2);
+
+	ret = rsi_usb_master_reg_write(adapter, RSI_GSPI_CTRL_REG1,
+				       ((len_in_bits - 1) | RSI_GSPI_TRIG), 2);
+	if (ret < 0)
+		return ret;
+
+	msleep(20);
+
+	return 0;
+}
+
+static int rsi_reset_card(struct rsi_hw *adapter)
+{
+	int ret;
+
+	rsi_dbg(INFO_ZONE, "Resetting Card...\n");
+	rsi_usb_master_reg_write(adapter, RSI_TA_HOLD_REG, 0xE, 4);
+
+	/* This msleep will ensure Thread-Arch processor to go to hold
+	 * and any pending dma transfers to rf in device to finish.
+	 */
+	msleep(100);
+
+	ret = rsi_usb_master_reg_write(adapter, SWBL_REGOUT,
+				       RSI_FW_WDT_DISABLE_REQ,
+				       RSI_COMMON_REG_SIZE);
+	if (ret < 0) {
+		rsi_dbg(ERR_ZONE, "Disabling firmware watchdog timer failed\n");
+		goto fail;
+	}
+
+	if (adapter->device_model != RSI_DEV_9116) {
+		ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_1,
+					 RSI_ULP_WRITE_2, 32);
+		if (ret < 0)
+			goto fail;
+		ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_2,
+					 RSI_ULP_WRITE_0, 32);
+		if (ret < 0)
+			goto fail;
+		ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_1,
+					 RSI_ULP_WRITE_50, 32);
+		if (ret < 0)
+			goto fail;
+		ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_DELAY_TIMER_2,
+					 RSI_ULP_WRITE_0, 32);
+		if (ret < 0)
+			goto fail;
+		ret = usb_ulp_read_write(adapter, RSI_WATCH_DOG_TIMER_ENABLE,
+					 RSI_ULP_TIMER_ENABLE, 32);
+		if (ret < 0)
+			goto fail;
+	} else {
+		ret = rsi_usb_master_reg_write(adapter,
+					       NWP_WWD_INTERRUPT_TIMER,
+					       NWP_WWD_INT_TIMER_CLKS,
+					       RSI_9116_REG_SIZE);
+		if (ret < 0)
+			goto fail;
+		ret = rsi_usb_master_reg_write(adapter,
+					       NWP_WWD_SYSTEM_RESET_TIMER,
+					       NWP_WWD_SYS_RESET_TIMER_CLKS,
+					       RSI_9116_REG_SIZE);
+		if (ret < 0)
+			goto fail;
+		ret = rsi_usb_master_reg_write(adapter,
+					       NWP_WWD_MODE_AND_RSTART,
+					       NWP_WWD_TIMER_DISABLE,
+					       RSI_9116_REG_SIZE);
+		if (ret < 0)
+			goto fail;
+	}
+
+	rsi_dbg(INFO_ZONE, "Reset card done\n");
+	return ret;
+
+fail:
+	rsi_dbg(ERR_ZONE, "Reset card failed\n");
+	return ret;
+}
+
+/**
+ * rsi_probe() - This function is called by kernel when the driver provided
+ *		 Vendor and device IDs are matched. All the initialization
+ *		 work is done here.
+ * @pfunction: Pointer to the USB interface structure.
+ * @id: Pointer to the usb_device_id structure.
+ *
+ * Return: 0 on success, a negative error code on failure.
+ */
+static int rsi_probe(struct usb_interface *pfunction,
+		     const struct usb_device_id *id)
+{
+	struct rsi_hw *adapter;
+	struct rsi_91x_usbdev *dev;
+	u16 fw_status;
+	int status;
+
+	rsi_dbg(INIT_ZONE, "%s: Init function called\n", __func__);
+
+	adapter = rsi_91x_init(dev_oper_mode);
+	if (!adapter) {
+		rsi_dbg(ERR_ZONE, "%s: Failed to init os intf ops\n",
+			__func__);
+		return -ENOMEM;
+	}
+	adapter->rsi_host_intf = RSI_HOST_INTF_USB;
+
+	status = rsi_init_usb_interface(adapter, pfunction);
+	if (status) {
+		rsi_dbg(ERR_ZONE, "%s: Failed to init usb interface\n",
+			__func__);
+		goto err;
+	}
+
+	rsi_dbg(ERR_ZONE, "%s: Initialized os intf ops\n", __func__);
+
+	if (id->idProduct == RSI_USB_PID_9113) {
+		rsi_dbg(INIT_ZONE, "%s: 9113 module detected\n", __func__);
+		adapter->device_model = RSI_DEV_9113;
+	} else if (id->idProduct == RSI_USB_PID_9116) {
+		rsi_dbg(INIT_ZONE, "%s: 9116 module detected\n", __func__);
+		adapter->device_model = RSI_DEV_9116;
+	} else {
+		rsi_dbg(ERR_ZONE, "%s: Unsupported RSI device id 0x%x\n",
+			__func__, id->idProduct);
+		status = -ENODEV;
+		goto err1;
+	}
+
+	dev = adapter->rsi_dev;
+
+	status = rsi_usb_reg_read(dev->usbdev, FW_STATUS_REG, &fw_status, 2);
+	if (status < 0)
+		goto err1;
+	else
+		fw_status &= 1;
+
+	if (!fw_status) {
+		rsi_dbg(INIT_ZONE, "Loading firmware...\n");
+		status = rsi_hal_device_init(adapter);
+		if (status) {
+			rsi_dbg(ERR_ZONE, "%s: Failed in device init\n",
+				__func__);
+			goto err1;
+		}
+		rsi_dbg(INIT_ZONE, "%s: Device Init Done\n", __func__);
+	}
+
+	status = rsi_rx_urb_submit(adapter, WLAN_EP, GFP_KERNEL);
+	if (status)
+		goto err1;
+
+	if (adapter->priv->coex_mode > 1) {
+		status = rsi_rx_urb_submit(adapter, BT_EP, GFP_KERNEL);
+		if (status)
+			goto err_kill_wlan_urb;
+	}
+
+	return 0;
+
+err_kill_wlan_urb:
+	rsi_rx_urb_kill(adapter, WLAN_EP);
+err1:
+	rsi_deinit_usb_interface(adapter);
+err:
+	rsi_91x_deinit(adapter);
+	rsi_dbg(ERR_ZONE, "%s: Failed in probe...Exiting\n", __func__);
+	return status;
+}
+
+/**
+ * rsi_disconnect() - This function performs the reverse of the probe function,
+ *		      it deinitialize the driver structure.
+ * @pfunction: Pointer to the USB interface structure.
+ *
+ * Return: None.
+ */
+static void rsi_disconnect(struct usb_interface *pfunction)
+{
+	struct rsi_hw *adapter = usb_get_intfdata(pfunction);
+
+	if (!adapter)
+		return;
+
+	rsi_mac80211_rfkill_exit(adapter);
+
+	rsi_mac80211_detach(adapter);
+
+	if (IS_ENABLED(CONFIG_RSI_COEX) && adapter->priv->coex_mode > 1 &&
+	    adapter->priv->bt_adapter) {
+		rsi_bt_ops.detach(adapter->priv->bt_adapter);
+		adapter->priv->bt_adapter = NULL;
+	}
+
+	if (adapter->priv->coex_mode > 1)
+		rsi_rx_urb_kill(adapter, BT_EP);
+	rsi_rx_urb_kill(adapter, WLAN_EP);
+
+	rsi_reset_card(adapter);
+	rsi_deinit_usb_interface(adapter);
+	rsi_91x_deinit(adapter);
+
+	rsi_dbg(INFO_ZONE, "%s: Deinitialization completed\n", __func__);
+}
+
+#ifdef CONFIG_PM
+static int rsi_suspend(struct usb_interface *intf, pm_message_t message)
+{
+	/* Not yet implemented */
+	return -ENOSYS;
+}
+
+static int rsi_resume(struct usb_interface *intf)
+{
+	/* Not yet implemented */
+	return -ENOSYS;
+}
+#endif
+
+static const struct usb_device_id rsi_dev_table[] = {
+	{ USB_DEVICE(RSI_USB_VENDOR_ID, RSI_USB_PID_9113) },
+	{ USB_DEVICE(RSI_USB_VENDOR_ID, RSI_USB_PID_9116) },
+	{ /* Blank */},
+};
+
+static struct usb_driver rsi_driver = {
+	.name       = "RSI-USB WLAN",
+	.probe      = rsi_probe,
+	.disconnect = rsi_disconnect,
+	.id_table   = rsi_dev_table,
+#ifdef CONFIG_PM
+	.suspend    = rsi_suspend,
+	.resume     = rsi_resume,
+#endif
+};
+
+module_usb_driver(rsi_driver);
+
+MODULE_AUTHOR("Redpine Signals Inc");
+MODULE_DESCRIPTION("Common USB layer for RSI drivers");
+MODULE_DEVICE_TABLE(usb, rsi_dev_table);
+MODULE_FIRMWARE(FIRMWARE_RSI9113);
+MODULE_VERSION("0.1");
+MODULE_LICENSE("Dual BSD/GPL");

linux-7.2.3/drivers/net/wireless/rsi/rsi_91x_usb_ops.c

@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#include <linux/firmware.h>
+#include "rsi_usb.h"
+
+/**
+ * rsi_usb_rx_thread() - This is a kernel thread to receive the packets from
+ *			 the USB device.
+ * @common: Pointer to the driver private structure.
+ *
+ * Return: None.
+ */
+void rsi_usb_rx_thread(struct rsi_common *common)
+{
+	struct rsi_hw *adapter = common->priv;
+	struct rsi_91x_usbdev *dev = adapter->rsi_dev;
+	int status;
+	struct sk_buff *skb;
+
+	do {
+		rsi_wait_event(&dev->rx_thread.event, EVENT_WAIT_FOREVER);
+		rsi_reset_event(&dev->rx_thread.event);
+
+		while (true) {
+			if (atomic_read(&dev->rx_thread.thread_done))
+				goto out;
+
+			skb = skb_dequeue(&dev->rx_q);
+			if (!skb)
+				break;
+			status = rsi_read_pkt(common, skb->data, 0);
+			if (status) {
+				rsi_dbg(ERR_ZONE, "%s: Failed To read data",
+					__func__);
+				break;
+			}
+			dev_kfree_skb(skb);
+		}
+	} while (1);
+
+out:
+	rsi_dbg(INFO_ZONE, "%s: Terminated thread\n", __func__);
+	skb_queue_purge(&dev->rx_q);
+	kthread_complete_and_exit(&dev->rx_thread.completion, 0);
+}
+

linux-7.2.3/drivers/net/wireless/rsi/rsi_boot_params.h

@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_BOOTPARAMS_HEADER_H__
+#define __RSI_BOOTPARAMS_HEADER_H__
+
+#define CRYSTAL_GOOD_TIME                BIT(0)
+#define BOOTUP_MODE_INFO                 BIT(1)
+#define WIFI_TAPLL_CONFIGS               BIT(5)
+#define WIFI_PLL960_CONFIGS              BIT(6)
+#define WIFI_AFEPLL_CONFIGS              BIT(7)
+#define WIFI_SWITCH_CLK_CONFIGS          BIT(8)
+
+#define TA_PLL_M_VAL_20                  9
+#define TA_PLL_N_VAL_20                  0
+#define TA_PLL_P_VAL_20                  4
+
+#define PLL960_M_VAL_20                  0x14
+#define PLL960_N_VAL_20                  0
+#define PLL960_P_VAL_20                  5
+
+#define UMAC_CLK_40MHZ                   80
+
+#define TA_PLL_M_VAL_40                  9
+#define TA_PLL_N_VAL_40                  0
+#define TA_PLL_P_VAL_40                  4
+
+#define PLL960_M_VAL_40                  0x14
+#define PLL960_N_VAL_40                  0
+#define PLL960_P_VAL_40                  5
+
+#define UMAC_CLK_20BW \
+	(((TA_PLL_M_VAL_20 + 1) * 40) / \
+	 ((TA_PLL_N_VAL_20 + 1) * (TA_PLL_P_VAL_20 + 1)))
+#define VALID_20 \
+	(WIFI_TAPLL_CONFIGS | WIFI_PLL960_CONFIGS | WIFI_AFEPLL_CONFIGS | \
+	 WIFI_SWITCH_CLK_CONFIGS | BOOTUP_MODE_INFO | CRYSTAL_GOOD_TIME)
+#define UMAC_CLK_40BW   \
+	(((TA_PLL_M_VAL_40 + 1) * 40) / \
+	 ((TA_PLL_N_VAL_40 + 1) * (TA_PLL_P_VAL_40 + 1)))
+#define VALID_40 \
+	(WIFI_PLL960_CONFIGS | WIFI_AFEPLL_CONFIGS | WIFI_SWITCH_CLK_CONFIGS | \
+	 WIFI_TAPLL_CONFIGS | CRYSTAL_GOOD_TIME | BOOTUP_MODE_INFO)
+
+/* structure to store configs related to TAPLL programming */
+struct tapll_info {
+	__le16 pll_reg_1;
+	__le16 pll_reg_2;
+} __packed;
+
+/* structure to store configs related to PLL960 programming */
+struct pll960_info {
+	__le16 pll_reg_1;
+	__le16 pll_reg_2;
+	__le16 pll_reg_3;
+} __packed;
+
+/* structure to store configs related to AFEPLL programming */
+struct afepll_info {
+	__le16 pll_reg;
+} __packed;
+
+/* structure to store configs related to pll configs */
+struct pll_config {
+	struct tapll_info tapll_info_g;
+	struct pll960_info pll960_info_g;
+	struct afepll_info afepll_info_g;
+} __packed;
+
+struct pll_config_9116 {
+	__le16 pll_ctrl_set_reg;
+	__le16 pll_ctrl_clr_reg;
+	__le16 pll_modem_conig_reg;
+	__le16 soc_clk_config_reg;
+	__le16 adc_dac_strm1_config_reg;
+	__le16 adc_dac_strm2_config_reg;
+} __packed;
+
+/* structure to store configs related to UMAC clk programming */
+struct switch_clk {
+	__le16 switch_clk_info;
+	/* If switch_bbp_lmac_clk_reg is set then this value will be programmed
+	 * into reg
+	 */
+	__le16 bbp_lmac_clk_reg_val;
+	/* if switch_umac_clk is set then this value will be programmed */
+	__le16 umac_clock_reg_config;
+	/* if switch_qspi_clk is set then this value will be programmed */
+	__le16 qspi_uart_clock_reg_config;
+} __packed;
+
+#define RSI_SWITCH_TASS_CLK			BIT(0)
+#define RSI_SWITCH_QSPI_CLK			BIT(1)
+#define RSI_SWITCH_SLP_CLK_2_32			BIT(2)
+#define RSI_SWITCH_WLAN_BBP_LMAC_CLK_REG	BIT(3)
+#define RSI_SWITCH_ZBBT_BBP_LMAC_CLK_REG	BIT(4)
+#define RSI_SWITCH_BBP_LMAC_CLK_REG		BIT(5)
+#define RSI_MODEM_CLK_160MHZ			BIT(6)
+
+struct switch_clk_9116 {
+	__le32 switch_clk_info;
+	__le32 tass_clock_reg;
+	__le32 wlan_bbp_lmac_clk_reg_val;
+	__le32 zbbt_bbp_lmac_clk_reg_val;
+	__le32 bbp_lmac_clk_en_val;
+} __packed;
+
+struct device_clk_info {
+	struct pll_config pll_config_g;
+	struct switch_clk switch_clk_g;
+} __packed;
+
+struct device_clk_info_9116 {
+	struct pll_config_9116 pll_config_9116_g;
+	struct switch_clk_9116 switch_clk_9116_g;
+} __packed;
+
+struct bootup_params {
+	__le16 magic_number;
+	__le16 crystal_good_time;
+	__le32 valid;
+	__le32 reserved_for_valids;
+	__le16 bootup_mode_info;
+	/* configuration used for digital loop back */
+	__le16 digital_loop_back_params;
+	__le16 rtls_timestamp_en;
+	__le16 host_spi_intr_cfg;
+	struct device_clk_info device_clk_info[3];
+	/* ulp buckboost wait time  */
+	__le32 buckboost_wakeup_cnt;
+	/* pmu wakeup wait time & WDT EN info */
+	__le16 pmu_wakeup_wait;
+	u8 shutdown_wait_time;
+	/* Sleep clock source selection */
+	u8 pmu_slp_clkout_sel;
+	/* WDT programming values */
+	__le32 wdt_prog_value;
+	/* WDT soc reset delay */
+	__le32 wdt_soc_rst_delay;
+	/* dcdc modes configs */
+	__le32 dcdc_operation_mode;
+	__le32 soc_reset_wait_cnt;
+	__le32 waiting_time_at_fresh_sleep;
+	__le32 max_threshold_to_avoid_sleep;
+	u8 beacon_resedue_alg_en;
+} __packed;
+
+struct bootup_params_9116 {
+	__le16 magic_number;
+#define LOADED_TOKEN  0x5AA5   /* Bootup params are installed by host
+				* or OTP/FLASH (Bootloader)
+				*/
+#define ROM_TOKEN     0x55AA   /* Bootup params are taken from ROM
+				* itself in MCU mode.
+				*/
+	__le16 crystal_good_time;
+	__le32 valid;
+	__le32 reserved_for_valids;
+	__le16 bootup_mode_info;
+#define BT_COEXIST		BIT(0)
+#define BOOTUP_MODE		(BIT(2) | BIT(1))
+#define CUR_DEV_MODE_9116	(bootup_params_9116.bootup_mode_info >> 1)
+	__le16 digital_loop_back_params;
+	__le16 rtls_timestamp_en;
+	__le16 host_spi_intr_cfg;
+	struct device_clk_info_9116 device_clk_info_9116[1];
+	__le32 buckboost_wakeup_cnt;
+	__le16 pmu_wakeup_wait;
+	u8 shutdown_wait_time;
+	u8 pmu_slp_clkout_sel;
+	__le32 wdt_prog_value;
+	__le32 wdt_soc_rst_delay;
+	__le32 dcdc_operation_mode;
+	__le32 soc_reset_wait_cnt;
+	__le32 waiting_time_at_fresh_sleep;
+	__le32 max_threshold_to_avoid_sleep;
+	u8 beacon_resedue_alg_en;
+} __packed;
+
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_coex.h

@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2018 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_COEX_H__
+#define __RSI_COEX_H__
+
+#include "rsi_common.h"
+
+#ifdef CONFIG_RSI_COEX
+#define COMMON_CARD_READY_IND           0
+#define NUM_COEX_TX_QUEUES              5
+
+struct rsi_coex_ctrl_block {
+	struct rsi_common *priv;
+	struct sk_buff_head coex_tx_qs[NUM_COEX_TX_QUEUES];
+	struct rsi_thread coex_tx_thread;
+};
+
+int rsi_coex_attach(struct rsi_common *common);
+void rsi_coex_detach(struct rsi_common *common);
+int rsi_coex_send_pkt(void *priv, struct sk_buff *skb, u8 proto_type);
+int rsi_coex_recv_pkt(struct rsi_common *common, u8 *msg);
+#endif
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_common.h

@@ -0,0 +1,92 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_COMMON_H__
+#define __RSI_COMMON_H__
+
+#include <linux/kthread.h>
+
+#define EVENT_WAIT_FOREVER              0
+#define FIRMWARE_RSI9113                "rs9113_wlan_qspi.rps"
+#define QUEUE_NOT_FULL                  1
+#define QUEUE_FULL                      0
+
+static inline int rsi_init_event(struct rsi_event *pevent)
+{
+	atomic_set(&pevent->event_condition, 1);
+	init_waitqueue_head(&pevent->event_queue);
+	return 0;
+}
+
+static inline int rsi_wait_event(struct rsi_event *event, u32 timeout)
+{
+	int status = 0;
+
+	if (!timeout)
+		status = wait_event_interruptible(event->event_queue,
+				(atomic_read(&event->event_condition) == 0));
+	else
+		status = wait_event_interruptible_timeout(event->event_queue,
+				(atomic_read(&event->event_condition) == 0),
+				timeout);
+	return status;
+}
+
+static inline void rsi_set_event(struct rsi_event *event)
+{
+	atomic_set(&event->event_condition, 0);
+	wake_up_interruptible(&event->event_queue);
+}
+
+static inline void rsi_reset_event(struct rsi_event *event)
+{
+	atomic_set(&event->event_condition, 1);
+}
+
+static inline int rsi_create_kthread(struct rsi_common *common,
+				     struct rsi_thread *thread,
+				     void *func_ptr,
+				     u8 *name)
+{
+	init_completion(&thread->completion);
+	atomic_set(&thread->thread_done, 0);
+	thread->task = kthread_run(func_ptr, common, "%s", name);
+	if (IS_ERR(thread->task))
+		return (int)PTR_ERR(thread->task);
+
+	return 0;
+}
+
+static inline void rsi_kill_thread(struct rsi_thread *handle)
+{
+	atomic_inc(&handle->thread_done);
+	rsi_set_event(&handle->event);
+	wait_for_completion(&handle->completion);
+}
+
+void rsi_mac80211_detach(struct rsi_hw *hw);
+void rsi_mac80211_rfkill_exit(struct rsi_hw *hw);
+u16 rsi_get_connected_channel(struct ieee80211_vif *vif);
+struct rsi_hw *rsi_91x_init(u16 oper_mode);
+void rsi_91x_deinit(struct rsi_hw *adapter);
+int rsi_read_pkt(struct rsi_common *common, u8 *rx_pkt, s32 rcv_pkt_len);
+#ifdef CONFIG_PM
+int rsi_config_wowlan(struct rsi_hw *adapter, struct cfg80211_wowlan *wowlan);
+#endif
+struct rsi_sta *rsi_find_sta(struct rsi_common *common, u8 *mac_addr);
+struct ieee80211_vif *rsi_get_vif(struct rsi_hw *adapter, u8 *mac);
+void rsi_roc_timeout(struct timer_list *t);
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_debugfs.h

@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_DEBUGFS_H__
+#define __RSI_DEBUGFS_H__
+
+#include "rsi_main.h"
+#include <linux/debugfs.h>
+
+#ifndef CONFIG_RSI_DEBUGFS
+static inline int rsi_init_dbgfs(struct rsi_hw *adapter)
+{
+	return 0;
+}
+
+static inline void rsi_remove_dbgfs(struct rsi_hw *adapter)
+{
+	return;
+}
+#else
+struct rsi_dbg_files {
+	const char *name;
+	umode_t perms;
+	const struct file_operations fops;
+};
+
+struct rsi_debugfs {
+	struct dentry *subdir;
+	struct dentry *rsi_files[MAX_DEBUGFS_ENTRIES];
+};
+int rsi_init_dbgfs(struct rsi_hw *adapter);
+void rsi_remove_dbgfs(struct rsi_hw *adapter);
+#endif
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_hal.h

@@ -0,0 +1,230 @@
+/*
+ * Copyright (c) 2017 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_HAL_H__
+#define __RSI_HAL_H__
+
+/* Device Operating modes */
+#define DEV_OPMODE_WIFI_ALONE		1
+#define DEV_OPMODE_BT_ALONE		4
+#define DEV_OPMODE_BT_LE_ALONE		8
+#define DEV_OPMODE_BT_DUAL		12
+#define DEV_OPMODE_STA_BT		5
+#define DEV_OPMODE_STA_BT_LE		9
+#define DEV_OPMODE_STA_BT_DUAL		13
+#define DEV_OPMODE_AP_BT		6
+#define DEV_OPMODE_AP_BT_DUAL		14
+
+#define DEV_OPMODE_PARAM_DESC		\
+	__stringify(DEV_OPMODE_WIFI_ALONE)	"[Wi-Fi alone], "	\
+	__stringify(DEV_OPMODE_BT_ALONE)	"[BT classic alone], "	\
+	__stringify(DEV_OPMODE_BT_LE_ALONE)	"[BT LE alone], "	\
+	__stringify(DEV_OPMODE_BT_DUAL)		"[BT classic + BT LE alone], " \
+	__stringify(DEV_OPMODE_STA_BT)		"[Wi-Fi STA + BT classic], " \
+	__stringify(DEV_OPMODE_STA_BT_LE)	"[Wi-Fi STA + BT LE], "	\
+	__stringify(DEV_OPMODE_STA_BT_DUAL)	"[Wi-Fi STA + BT classic + BT LE], " \
+	__stringify(DEV_OPMODE_AP_BT)		"[Wi-Fi AP + BT classic], "	\
+	__stringify(DEV_OPMODE_AP_BT_DUAL)	"[Wi-Fi AP + BT classic + BT LE]"
+
+#define FLASH_WRITE_CHUNK_SIZE		(4 * 1024)
+#define FLASH_SECTOR_SIZE		(4 * 1024)
+
+#define FLASH_SIZE_ADDR			0x04000016
+#define PING_BUFFER_ADDRESS		0x19000
+#define PONG_BUFFER_ADDRESS		0x1a000
+#define SWBL_REGIN			0x41050034
+#define SWBL_REGOUT			0x4105003c
+#define PING_WRITE			0x1
+#define PONG_WRITE			0x2
+
+#define BL_CMD_TIMEOUT			2000
+#define BL_BURN_TIMEOUT			(50 * 1000)
+
+#define REGIN_VALID			0xA
+#define REGIN_INPUT			0xA0
+#define REGOUT_VALID			0xAB
+#define REGOUT_INVALID			(~0xAB)
+#define CMD_PASS			0xAA
+#define CMD_FAIL			0xCC
+
+#define LOAD_HOSTED_FW			'A'
+#define BURN_HOSTED_FW			'B'
+#define PING_VALID			'I'
+#define PONG_VALID			'O'
+#define PING_AVAIL			'I'
+#define PONG_AVAIL			'O'
+#define EOF_REACHED			'E'
+#define CHECK_CRC			'K'
+#define POLLING_MODE			'P'
+#define AUTO_READ_MODE			'R'
+#define JUMP_TO_ZERO_PC			'J'
+#define FW_LOADING_SUCCESSFUL		'S'
+#define LOADING_INITIATED		'1'
+
+#define RSI_ULP_RESET_REG		0x161
+#define RSI_WATCH_DOG_TIMER_1		0x16c
+#define RSI_WATCH_DOG_TIMER_2		0x16d
+#define RSI_WATCH_DOG_DELAY_TIMER_1		0x16e
+#define RSI_WATCH_DOG_DELAY_TIMER_2		0x16f
+#define RSI_WATCH_DOG_TIMER_ENABLE		0x170
+
+/* Watchdog timer addresses for 9116 */
+#define NWP_AHB_BASE_ADDR		0x41300000
+#define NWP_WWD_INTERRUPT_TIMER		(NWP_AHB_BASE_ADDR + 0x300)
+#define NWP_WWD_SYSTEM_RESET_TIMER	(NWP_AHB_BASE_ADDR + 0x304)
+#define NWP_WWD_WINDOW_TIMER		(NWP_AHB_BASE_ADDR + 0x308)
+#define NWP_WWD_TIMER_SETTINGS		(NWP_AHB_BASE_ADDR + 0x30C)
+#define NWP_WWD_MODE_AND_RSTART		(NWP_AHB_BASE_ADDR + 0x310)
+#define NWP_WWD_RESET_BYPASS		(NWP_AHB_BASE_ADDR + 0x314)
+#define NWP_FSM_INTR_MASK_REG		(NWP_AHB_BASE_ADDR + 0x104)
+
+/* Watchdog timer values */
+#define NWP_WWD_INT_TIMER_CLKS		5
+#define NWP_WWD_SYS_RESET_TIMER_CLKS	4
+#define NWP_WWD_TIMER_DISABLE		0xAA0001
+
+#define RSI_ULP_WRITE_0			00
+#define RSI_ULP_WRITE_2			02
+#define RSI_ULP_WRITE_50		50
+
+#define RSI_RESTART_WDT			BIT(11)
+#define RSI_BYPASS_ULP_ON_WDT		BIT(1)
+
+#define RSI_ULP_TIMER_ENABLE		((0xaa000) | RSI_RESTART_WDT |	\
+					 RSI_BYPASS_ULP_ON_WDT)
+#define RSI_RF_SPI_PROG_REG_BASE_ADDR	0x40080000
+
+#define RSI_GSPI_CTRL_REG0		(RSI_RF_SPI_PROG_REG_BASE_ADDR)
+#define RSI_GSPI_CTRL_REG1		(RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x2)
+#define RSI_GSPI_DATA_REG0		(RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x4)
+#define RSI_GSPI_DATA_REG1		(RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x6)
+#define RSI_GSPI_DATA_REG2		(RSI_RF_SPI_PROG_REG_BASE_ADDR + 0x8)
+
+#define RSI_GSPI_CTRL_REG0_VALUE		0x340
+
+#define RSI_GSPI_DMA_MODE			BIT(13)
+
+#define RSI_GSPI_2_ULP			BIT(12)
+#define RSI_GSPI_TRIG			BIT(7)
+#define RSI_GSPI_READ			BIT(6)
+#define RSI_GSPI_RF_SPI_ACTIVE		BIT(8)
+
+/* Boot loader commands */
+#define SEND_RPS_FILE			'2'
+
+#define FW_IMAGE_MIN_ADDRESS		(68 * 1024)
+#define MAX_FLASH_FILE_SIZE		(400 * 1024) //400K
+#define FLASH_START_ADDRESS		16
+
+#define COMMON_HAL_CARD_READY_IND	0x0
+
+#define COMMAN_HAL_WAIT_FOR_CARD_READY	1
+
+#define RSI_DEV_OPMODE_WIFI_ALONE	1
+#define RSI_DEV_COEX_MODE_WIFI_ALONE	1
+
+#define BBP_INFO_40MHZ 0x6
+
+#define FW_FLASH_OFFSET			0x820
+#define LMAC_VER_OFFSET_9113		(FW_FLASH_OFFSET + 0x200)
+#define LMAC_VER_OFFSET_9116		0x22C2
+#define MAX_DWORD_ALIGN_BYTES		64
+#define RSI_COMMON_REG_SIZE		2
+#define RSI_9116_REG_SIZE		4
+#define FW_ALIGN_SIZE			4
+#define RSI_9116_FW_MAGIC_WORD		0x5aa5
+
+#define MEM_ACCESS_CTRL_FROM_HOST	0x41300000
+#define RAM_384K_ACCESS_FROM_TA		(BIT(2) | BIT(3) | BIT(4) | BIT(5) | \
+					 BIT(20) | BIT(21) | BIT(22) | \
+					 BIT(23) | BIT(24) | BIT(25))
+
+struct bl_header {
+	__le32 flags;
+	__le32 image_no;
+	__le32 check_sum;
+	__le32 flash_start_address;
+	__le32 flash_len;
+} __packed;
+
+struct ta_metadata {
+	char *name;
+	unsigned int address;
+};
+
+#define RSI_BL_CTRL_LEN_MASK			0xFFFFFF
+#define RSI_BL_CTRL_SPI_32BIT_MODE		BIT(27)
+#define RSI_BL_CTRL_REL_TA_SOFTRESET		BIT(28)
+#define RSI_BL_CTRL_START_FROM_ROM_PC		BIT(29)
+#define RSI_BL_CTRL_SPI_8BIT_MODE		BIT(30)
+#define RSI_BL_CTRL_LAST_ENTRY			BIT(31)
+struct bootload_entry {
+	__le32 control;
+	__le32 dst_addr;
+} __packed;
+
+struct bootload_ds {
+	__le16 fixed_pattern;
+	__le16 offset;
+	__le32 reserved;
+	struct bootload_entry bl_entry[7];
+} __packed;
+
+struct rsi_mgmt_desc {
+	__le16 len_qno;
+	u8 frame_type;
+	u8 misc_flags;
+	u8 xtend_desc_size;
+	u8 header_len;
+	__le16 frame_info;
+	__le16 rate_info;
+	__le16 bbp_info;
+	__le16 seq_ctrl;
+	u8 reserved2;
+	u8 sta_id;
+} __packed;
+
+struct rsi_data_desc {
+	__le16 len_qno;
+	u8 cfm_frame_type;
+	u8 misc_flags;
+	u8 xtend_desc_size;
+	u8 header_len;
+	__le16 frame_info;
+	__le16 rate_info;
+	__le16 bbp_info;
+	__le16 mac_flags;
+	u8 qid_tid;
+	u8 sta_id;
+} __packed;
+
+struct rsi_bt_desc {
+	__le16 len_qno;
+	__le16 reserved1;
+	__le32 reserved2;
+	__le32 reserved3;
+	__le16 reserved4;
+	__le16 bt_pkt_type;
+} __packed;
+
+int rsi_hal_device_init(struct rsi_hw *adapter);
+int rsi_prepare_mgmt_desc(struct rsi_common *common, struct sk_buff *skb);
+int rsi_prepare_data_desc(struct rsi_common *common, struct sk_buff *skb);
+int rsi_prepare_beacon(struct rsi_common *common, struct sk_buff *skb);
+int rsi_send_pkt_to_bus(struct rsi_common *common, struct sk_buff *skb);
+int rsi_send_bt_pkt(struct rsi_common *common, struct sk_buff *skb);
+
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_main.h

@@ -0,0 +1,414 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_MAIN_H__
+#define __RSI_MAIN_H__
+
+#include <linux/string.h>
+#include <linux/skbuff.h>
+#include <net/mac80211.h>
+#include <net/rsi_91x.h>
+
+struct rsi_sta {
+	struct ieee80211_sta *sta;
+	s16 sta_id;
+	u16 seq_start[IEEE80211_NUM_TIDS];
+	bool start_tx_aggr[IEEE80211_NUM_TIDS];
+};
+
+struct rsi_hw;
+
+#include "rsi_ps.h"
+
+#define ERR_ZONE                        BIT(0)  /* For Error Msgs             */
+#define INFO_ZONE                       BIT(1)  /* For General Status Msgs    */
+#define INIT_ZONE                       BIT(2)  /* For Driver Init Seq Msgs   */
+#define MGMT_TX_ZONE                    BIT(3)  /* For TX Mgmt Path Msgs      */
+#define MGMT_RX_ZONE                    BIT(4)  /* For RX Mgmt Path Msgs      */
+#define DATA_TX_ZONE                    BIT(5)  /* For TX Data Path Msgs      */
+#define DATA_RX_ZONE                    BIT(6)  /* For RX Data Path Msgs      */
+#define FSM_ZONE                        BIT(7)  /* For State Machine Msgs     */
+#define ISR_ZONE                        BIT(8)  /* For Interrupt Msgs         */
+
+enum RSI_FSM_STATES {
+	FSM_FW_NOT_LOADED,
+	FSM_CARD_NOT_READY,
+	FSM_COMMON_DEV_PARAMS_SENT,
+	FSM_BOOT_PARAMS_SENT,
+	FSM_EEPROM_READ_MAC_ADDR,
+	FSM_EEPROM_READ_RF_TYPE,
+	FSM_RESET_MAC_SENT,
+	FSM_RADIO_CAPS_SENT,
+	FSM_BB_RF_PROG_SENT,
+	FSM_MAC_INIT_DONE,
+
+	NUM_FSM_STATES
+};
+
+extern u32 rsi_zone_enabled;
+extern __printf(2, 3) void rsi_dbg(u32 zone, const char *fmt, ...);
+
+#define RSI_MAX_BANDS			2
+#define RSI_MAX_VIFS                    3
+#define NUM_EDCA_QUEUES                 4
+#define IEEE80211_ADDR_LEN              6
+#define FRAME_DESC_SZ                   16
+#define MIN_802_11_HDR_LEN              24
+#define RSI_DEF_KEEPALIVE               90
+#define RSI_WOW_KEEPALIVE                5
+#define RSI_BCN_MISS_THRESHOLD           24
+
+#define DATA_QUEUE_WATER_MARK           400
+#define MIN_DATA_QUEUE_WATER_MARK       300
+#define MULTICAST_WATER_MARK            200
+#define MAC_80211_HDR_FRAME_CONTROL     0
+#define WME_NUM_AC                      4
+#define NUM_SOFT_QUEUES                 6
+#define MAX_HW_QUEUES                   12
+#define INVALID_QUEUE                   0xff
+#define MAX_CONTINUOUS_VO_PKTS          8
+#define MAX_CONTINUOUS_VI_PKTS          4
+
+/* Hardware queue info */
+#define BROADCAST_HW_Q			9
+#define MGMT_HW_Q			10
+#define BEACON_HW_Q			11
+
+#define IEEE80211_MGMT_FRAME            0x00
+#define IEEE80211_CTL_FRAME             0x04
+
+#define RSI_MAX_ASSOC_STAS		32
+#define IEEE80211_QOS_TID               0x0f
+#define IEEE80211_NONQOS_TID            16
+
+#define MAX_DEBUGFS_ENTRIES             4
+
+#define TID_TO_WME_AC(_tid) (      \
+	((_tid) == 0 || (_tid) == 3) ? BE_Q : \
+	((_tid) < 3) ? BK_Q : \
+	((_tid) < 6) ? VI_Q : \
+	VO_Q)
+
+#define WME_AC(_q) (    \
+	((_q) == BK_Q) ? IEEE80211_AC_BK : \
+	((_q) == BE_Q) ? IEEE80211_AC_BE : \
+	((_q) == VI_Q) ? IEEE80211_AC_VI : \
+	IEEE80211_AC_VO)
+
+/* WoWLAN flags */
+#define RSI_WOW_ENABLED			BIT(0)
+#define RSI_WOW_NO_CONNECTION		BIT(1)
+
+#define RSI_MAX_RX_PKTS		64
+
+enum rsi_dev_model {
+	RSI_DEV_9113 = 0,
+	RSI_DEV_9116
+};
+
+struct version_info {
+	u16 major;
+	u16 minor;
+	u8 release_num;
+	u8 patch_num;
+	union {
+		struct {
+			u8 fw_ver[8];
+		} info;
+	} ver;
+} __packed;
+
+struct skb_info {
+	s8 rssi;
+	u32 flags;
+	u16 channel;
+	s8 tid;
+	s8 sta_id;
+	u8 internal_hdr_size;
+	struct ieee80211_vif *vif;
+	u8 vap_id;
+	bool have_key;
+};
+
+enum edca_queue {
+	BK_Q,
+	BE_Q,
+	VI_Q,
+	VO_Q,
+	MGMT_SOFT_Q,
+	MGMT_BEACON_Q
+};
+
+struct security_info {
+	u32 ptk_cipher;
+	u32 gtk_cipher;
+};
+
+struct wmm_qinfo {
+	s32 weight;
+	s32 wme_params;
+	s32 pkt_contended;
+	s32 txop;
+};
+
+struct transmit_q_stats {
+	u32 total_tx_pkt_send[NUM_EDCA_QUEUES + 2];
+	u32 total_tx_pkt_freed[NUM_EDCA_QUEUES + 2];
+};
+
+#define MAX_BGSCAN_CHANNELS_DUAL_BAND	38
+#define MAX_BGSCAN_PROBE_REQ_LEN	0x64
+#define RSI_DEF_BGSCAN_THRLD		0x0
+#define RSI_DEF_ROAM_THRLD		0xa
+#define RSI_BGSCAN_PERIODICITY		0x1e
+#define RSI_ACTIVE_SCAN_TIME		0x14
+#define RSI_PASSIVE_SCAN_TIME		0x46
+#define RSI_CHANNEL_SCAN_TIME		20
+struct rsi_bgscan_params {
+	u16 bgscan_threshold;
+	u16 roam_threshold;
+	u16 bgscan_periodicity;
+	u8 num_bgscan_channels;
+	u8 two_probe;
+	u16 active_scan_duration;
+	u16 passive_scan_duration;
+};
+
+struct vif_priv {
+	bool is_ht;
+	bool sgi;
+	u16 seq_start;
+	int vap_id;
+};
+
+struct rsi_event {
+	atomic_t event_condition;
+	wait_queue_head_t event_queue;
+};
+
+struct rsi_thread {
+	void (*thread_function)(void *);
+	struct completion completion;
+	struct task_struct *task;
+	struct rsi_event event;
+	atomic_t thread_done;
+};
+
+struct cqm_info {
+	s8 last_cqm_event_rssi;
+	int rssi_thold;
+	u32 rssi_hyst;
+};
+
+enum rsi_dfs_regions {
+	RSI_REGION_FCC = 0,
+	RSI_REGION_ETSI,
+	RSI_REGION_TELEC,
+	RSI_REGION_WORLD
+};
+
+struct rsi_9116_features {
+	u8 pll_mode;
+	u8 rf_type;
+	u8 wireless_mode;
+	u8 afe_type;
+	u8 enable_ppe;
+	u8 dpd;
+	u32 sifs_tx_enable;
+	u32 ps_options;
+};
+
+struct rsi_rate_config {
+	u32 configured_mask;	/* configured by mac80211 bits 0-11=legacy 12+ mcs */
+	u16 fixed_hw_rate;
+	bool fixed_enabled;
+};
+
+struct rsi_common {
+	struct rsi_hw *priv;
+	struct vif_priv vif_info[RSI_MAX_VIFS];
+
+	void *coex_cb;
+	bool mgmt_q_block;
+	struct version_info lmac_ver;
+
+	struct rsi_thread tx_thread;
+	struct sk_buff_head tx_queue[NUM_EDCA_QUEUES + 2];
+	struct completion wlan_init_completion;
+	/* Mutex declaration */
+	struct mutex mutex;
+	/* Mutex used for tx thread */
+	struct mutex tx_lock;
+	/* Mutex used for rx thread */
+	struct mutex rx_lock;
+	u8 endpoint;
+
+	/* Channel/band related */
+	u8 band;
+	u8 num_supp_bands;
+	u8 channel_width;
+
+	u16 rts_threshold;
+	u32 bitrate_mask[RSI_MAX_BANDS];
+	struct rsi_rate_config rate_config[RSI_MAX_BANDS];
+
+	u8 rf_reset;
+	struct transmit_q_stats tx_stats;
+	struct security_info secinfo;
+	struct wmm_qinfo tx_qinfo[NUM_EDCA_QUEUES];
+	struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
+	u8 mac_addr[IEEE80211_ADDR_LEN];
+
+	/* state related */
+	u32 fsm_state;
+	bool init_done;
+	u8 bb_rf_prog_count;
+	bool iface_down;
+
+	/* Generic */
+	u8 channel;
+	u8 *rx_data_pkt;
+	u8 mac_id;
+	u8 radio_id;
+	u16 rate_pwr[20];
+
+	/* WMM algo related */
+	u8 selected_qnum;
+	u32 pkt_cnt;
+	u8 min_weight;
+
+	/* bgscan related */
+	struct cqm_info cqm_info;
+
+	bool hw_data_qs_blocked;
+	u8 driver_mode;
+	u8 coex_mode;
+	u16 oper_mode;
+	u8 lp_ps_handshake_mode;
+	u8 ulp_ps_handshake_mode;
+	u8 uapsd_bitmap;
+	u8 rf_power_val;
+	u8 wlan_rf_power_mode;
+	u8 obm_ant_sel_val;
+	int tx_power;
+	u8 ant_in_use;
+	/* Mutex used for writing packet to bus */
+	struct mutex tx_bus_mutex;
+	bool hibernate_resume;
+	bool reinit_hw;
+	u8 wow_flags;
+	u16 beacon_interval;
+	u8 dtim_cnt;
+
+	/* AP mode parameters */
+	u8 beacon_enabled;
+	u16 beacon_cnt;
+	struct rsi_sta stations[RSI_MAX_ASSOC_STAS + 1];
+	int num_stations;
+	int max_stations;
+	struct ieee80211_key_conf *key;
+
+	/* Wi-Fi direct mode related */
+	bool p2p_enabled;
+	struct timer_list roc_timer;
+	struct ieee80211_vif *roc_vif;
+
+	bool eapol4_confirm;
+	bool bt_defer_attach;
+	void *bt_adapter;
+
+	struct cfg80211_scan_request *hwscan;
+	struct rsi_bgscan_params bgscan;
+	struct rsi_9116_features w9116_features;
+	u8 bgscan_en;
+	u8 mac_ops_resumed;
+};
+
+struct eepromrw_info {
+	u32 offset;
+	u32 length;
+	u8  write;
+	u16 eeprom_erase;
+	u8 data[480];
+};
+
+struct eeprom_read {
+	u16 length;
+	u16 off_set;
+};
+
+struct rsi_hw {
+	struct rsi_common *priv;
+	enum rsi_dev_model device_model;
+	struct ieee80211_hw *hw;
+	struct ieee80211_vif *vifs[RSI_MAX_VIFS];
+	struct ieee80211_tx_queue_params edca_params[NUM_EDCA_QUEUES];
+	struct ieee80211_supported_band sbands[NUM_NL80211_BANDS];
+
+	struct device *device;
+	u8 sc_nvifs;
+
+	enum rsi_host_intf rsi_host_intf;
+	u16 block_size;
+	enum ps_state ps_state;
+	struct rsi_ps_info ps_info;
+	spinlock_t ps_lock; /*To protect power save config*/
+	u32 usb_buffer_status_reg;
+#ifdef CONFIG_RSI_DEBUGFS
+	struct rsi_debugfs *dfsentry;
+	u8 num_debugfs_entries;
+#endif
+	char *fw_file_name;
+	struct timer_list bl_cmd_timer;
+	bool blcmd_timer_expired;
+	u32 flash_capacity;
+	struct eepromrw_info eeprom;
+	u32 interrupt_status;
+	u8 dfs_region;
+	char country[2];
+	void *rsi_dev;
+	struct rsi_host_intf_ops *host_intf_ops;
+	int (*check_hw_queue_status)(struct rsi_hw *adapter, u8 q_num);
+	int (*determine_event_timeout)(struct rsi_hw *adapter);
+};
+
+void rsi_print_version(struct rsi_common *common);
+
+struct rsi_host_intf_ops {
+	int (*read_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
+	int (*write_pkt)(struct rsi_hw *adapter, u8 *pkt, u32 len);
+	int (*master_access_msword)(struct rsi_hw *adapter, u16 ms_word);
+	int (*read_reg_multiple)(struct rsi_hw *adapter, u32 addr,
+				 u8 *data, u16 count);
+	int (*write_reg_multiple)(struct rsi_hw *adapter, u32 addr,
+				  u8 *data, u16 count);
+	int (*master_reg_read)(struct rsi_hw *adapter, u32 addr,
+			       u32 *read_buf, u16 size);
+	int (*master_reg_write)(struct rsi_hw *adapter,
+				unsigned long addr, unsigned long data,
+				u16 size);
+	int (*load_data_master_write)(struct rsi_hw *adapter, u32 addr,
+				      u32 instructions_size, u16 block_size,
+				      u8 *fw);
+	int (*reinit_device)(struct rsi_hw *adapter);
+	int (*ta_reset)(struct rsi_hw *adapter);
+};
+
+enum rsi_host_intf rsi_get_host_intf(void *priv);
+void rsi_set_bt_context(void *priv, void *bt_context);
+void rsi_attach_bt(struct rsi_common *common);
+
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_mgmt.h

@@ -0,0 +1,758 @@
+/*
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_MGMT_H__
+#define __RSI_MGMT_H__
+
+#include <linux/sort.h>
+#include "rsi_boot_params.h"
+#include "rsi_main.h"
+
+#define MAX_MGMT_PKT_SIZE               512
+#define RSI_NEEDED_HEADROOM             84
+#define RSI_RCV_BUFFER_LEN              2000
+
+#define RSI_11B_MODE                    0
+#define RSI_11G_MODE                    BIT(7)
+#define RETRY_COUNT                     8
+#define RETRY_LONG                      4
+#define RETRY_SHORT                     7
+#define WMM_SHORT_SLOT_TIME             9
+#define SIFS_DURATION                   16
+
+#define EAPOL4_PACKET_LEN		0x85
+#define KEY_TYPE_CLEAR                  0
+#define RSI_PAIRWISE_KEY                1
+#define RSI_GROUP_KEY                   2
+
+/* EPPROM_READ_ADDRESS */
+#define WLAN_MAC_EEPROM_ADDR            40
+#define WLAN_MAC_MAGIC_WORD_LEN         0x01
+#define WLAN_HOST_MODE_LEN              0x04
+#define WLAN_FW_VERSION_LEN             0x08
+#define MAGIC_WORD                      0x5A
+#define WLAN_EEPROM_RFTYPE_ADDR		424
+
+/*WOWLAN RESUME WAKEUP TYPES*/
+#define RSI_UNICAST_MAGIC_PKT		BIT(0)
+#define RSI_BROADCAST_MAGICPKT		BIT(1)
+#define RSI_EAPOL_PKT			BIT(2)
+#define RSI_DISCONNECT_PKT		BIT(3)
+#define RSI_HW_BMISS_PKT		BIT(4)
+#define RSI_INSERT_SEQ_IN_FW		BIT(2)
+
+#define WOW_MAX_FILTERS_PER_LIST 16
+#define WOW_PATTERN_SIZE 256
+
+/* Receive Frame Types */
+#define RSI_RX_DESC_MSG_TYPE_OFFSET	2
+#define TA_CONFIRM_TYPE                 0x01
+#define RX_DOT11_MGMT                   0x02
+#define TX_STATUS_IND                   0x04
+#define BEACON_EVENT_IND		0x08
+#define EAPOL4_CONFIRM                  1
+#define PROBEREQ_CONFIRM                2
+#define CARD_READY_IND                  0x00
+#define SLEEP_NOTIFY_IND                0x06
+#define RSI_TX_STATUS_TYPE		15
+#define RSI_TX_STATUS			12
+
+#define RSI_DELETE_PEER                 0x0
+#define RSI_ADD_PEER                    0x1
+#define START_AMPDU_AGGR                0x1
+#define STOP_AMPDU_AGGR                 0x0
+#define INTERNAL_MGMT_PKT               0x99
+
+#define PUT_BBP_RESET                   0
+#define BBP_REG_WRITE                   0
+#define RF_RESET_ENABLE                 BIT(3)
+#define RATE_INFO_ENABLE                BIT(0)
+#define MORE_DATA_PRESENT		BIT(1)
+#define RSI_BROADCAST_PKT               BIT(9)
+#define RSI_DESC_REQUIRE_CFM_TO_HOST	BIT(2)
+#define RSI_ADD_DELTA_TSF_VAP_ID	BIT(3)
+#define RSI_FETCH_RETRY_CNT_FRM_HST	BIT(4)
+#define RSI_QOS_ENABLE			BIT(12)
+#define RSI_REKEY_PURPOSE		BIT(13)
+#define RSI_ENCRYPT_PKT			BIT(15)
+#define RSI_SET_PS_ENABLE		BIT(12)
+
+#define RSI_CMDDESC_40MHZ		BIT(4)
+#define RSI_CMDDESC_UPPER_20_ENABLE	BIT(5)
+#define RSI_CMDDESC_LOWER_20_ENABLE	BIT(6)
+#define RSI_CMDDESC_FULL_40_ENABLE	(BIT(5) | BIT(6))
+#define UPPER_20_ENABLE                 (0x2 << 12)
+#define LOWER_20_ENABLE                 (0x4 << 12)
+#define FULL40M_ENABLE                  0x6
+
+#define RSI_LMAC_CLOCK_80MHZ            0x1
+#define RSI_ENABLE_40MHZ                (0x1 << 3)
+#define ENABLE_SHORTGI_RATE		BIT(9)
+
+#define RX_BA_INDICATION                1
+#define RSI_TBL_SZ                      40
+#define MAX_RETRIES                     8
+#define RSI_IFTYPE_STATION		 0
+
+#define STD_RATE_MCS7                   0x07
+#define STD_RATE_MCS6                   0x06
+#define STD_RATE_MCS5                   0x05
+#define STD_RATE_MCS4                   0x04
+#define STD_RATE_MCS3                   0x03
+#define STD_RATE_MCS2                   0x02
+#define STD_RATE_MCS1                   0x01
+#define STD_RATE_MCS0                   0x00
+#define STD_RATE_54                     0x6c
+#define STD_RATE_48                     0x60
+#define STD_RATE_36                     0x48
+#define STD_RATE_24                     0x30
+#define STD_RATE_18                     0x24
+#define STD_RATE_12                     0x18
+#define STD_RATE_11                     0x16
+#define STD_RATE_09                     0x12
+#define STD_RATE_06                     0x0C
+#define STD_RATE_5_5                    0x0B
+#define STD_RATE_02                     0x04
+#define STD_RATE_01                     0x02
+
+#define RSI_RF_TYPE                     1
+#define RSI_RATE_00                     0x00
+#define RSI_RATE_1                      0x0
+#define RSI_RATE_2                      0x2
+#define RSI_RATE_5_5                    0x4
+#define RSI_RATE_11                     0x6
+#define RSI_RATE_6                      0x8b
+#define RSI_RATE_9                      0x8f
+#define RSI_RATE_12                     0x8a
+#define RSI_RATE_18                     0x8e
+#define RSI_RATE_24                     0x89
+#define RSI_RATE_36                     0x8d
+#define RSI_RATE_48                     0x88
+#define RSI_RATE_54                     0x8c
+#define RSI_RATE_MCS0                   0x100
+#define RSI_RATE_MCS1                   0x101
+#define RSI_RATE_MCS2                   0x102
+#define RSI_RATE_MCS3                   0x103
+#define RSI_RATE_MCS4                   0x104
+#define RSI_RATE_MCS5                   0x105
+#define RSI_RATE_MCS6                   0x106
+#define RSI_RATE_MCS7                   0x107
+#define RSI_RATE_MCS7_SG                0x307
+#define RSI_RATE_AUTO			0xffff
+
+#define BW_20MHZ                        0
+#define BW_40MHZ                        1
+
+#define EP_2GHZ_20MHZ			0
+#define EP_2GHZ_40MHZ			1
+#define EP_5GHZ_20MHZ			2
+#define EP_5GHZ_40MHZ			3
+
+#define SIFS_TX_11N_VALUE		580
+#define SIFS_TX_11B_VALUE		346
+#define SHORT_SLOT_VALUE		360
+#define LONG_SLOT_VALUE			640
+#define OFDM_ACK_TOUT_VALUE		2720
+#define CCK_ACK_TOUT_VALUE		9440
+#define LONG_PREAMBLE			0x0000
+#define SHORT_PREAMBLE			0x0001
+
+#define RSI_SUPP_FILTERS	(FIF_ALLMULTI | FIF_PROBE_REQ |\
+				 FIF_BCN_PRBRESP_PROMISC)
+
+#define ANTENNA_SEL_INT			0x02 /* RF_OUT_2 / Integerated */
+#define ANTENNA_SEL_UFL			0x03 /* RF_OUT_1 / U.FL */
+#define ANTENNA_MASK_VALUE		0x00ff
+#define ANTENNA_SEL_TYPE		1
+
+/* Rx filter word definitions */
+#define PROMISCOUS_MODE			BIT(0)
+#define ALLOW_DATA_ASSOC_PEER		BIT(1)
+#define ALLOW_MGMT_ASSOC_PEER		BIT(2)
+#define ALLOW_CTRL_ASSOC_PEER		BIT(3)
+#define DISALLOW_BEACONS		BIT(4)
+#define ALLOW_CONN_PEER_MGMT_WHILE_BUF_FULL BIT(5)
+#define DISALLOW_BROADCAST_DATA		BIT(6)
+
+#define RSI_MPDU_DENSITY		0x8
+#define RSI_CHAN_RADAR			BIT(7)
+#define RSI_BEACON_INTERVAL		200
+#define RSI_DTIM_COUNT			2
+
+#define RSI_PS_DISABLE_IND		BIT(15)
+#define RSI_PS_ENABLE			1
+#define RSI_PS_DISABLE			0
+#define RSI_DEEP_SLEEP			1
+#define RSI_CONNECTED_SLEEP		2
+#define RSI_SLEEP_REQUEST		1
+#define RSI_WAKEUP_REQUEST		2
+
+#define RSI_IEEE80211_UAPSD_QUEUES \
+	(IEEE80211_WMM_IE_STA_QOSINFO_AC_VO | \
+	 IEEE80211_WMM_IE_STA_QOSINFO_AC_VI | \
+	 IEEE80211_WMM_IE_STA_QOSINFO_AC_BE | \
+	 IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
+
+#define RSI_DESC_VAP_ID_MASK		0xC000u
+#define RSI_DESC_VAP_ID_OFST		14
+#define RSI_DATA_DESC_MAC_BBP_INFO	BIT(0)
+#define RSI_DATA_DESC_NO_ACK_IND	BIT(9)
+#define RSI_DATA_DESC_QOS_EN		BIT(12)
+#define RSI_DATA_DESC_NORMAL_FRAME	0x00
+#define RSI_DATA_DESC_DTIM_BEACON_GATED_FRAME	BIT(10)
+#define RSI_DATA_DESC_BEACON_FRAME	BIT(11)
+#define RSI_DATA_DESC_DTIM_BEACON	(BIT(10) | BIT(11))
+#define RSI_DATA_DESC_INSERT_TSF	BIT(15)
+#define RSI_DATA_DESC_INSERT_SEQ_NO	BIT(2)
+
+#ifdef CONFIG_PM
+#define RSI_WOW_ANY			BIT(1)
+#define RSI_WOW_GTK_REKEY		BIT(3)
+#define RSI_WOW_MAGIC_PKT		BIT(4)
+#define RSI_WOW_DISCONNECT		BIT(5)
+#endif
+
+#define RSI_MAX_TX_AGGR_FRMS		8
+#define RSI_MAX_RX_AGGR_FRMS		8
+
+#define RSI_MAX_SCAN_SSIDS		16
+#define RSI_MAX_SCAN_IE_LEN		256
+
+enum opmode {
+	RSI_OPMODE_UNSUPPORTED = -1,
+	RSI_OPMODE_AP = 0,
+	RSI_OPMODE_STA,
+	RSI_OPMODE_P2P_GO,
+	RSI_OPMODE_P2P_CLIENT
+};
+
+enum vap_status {
+	VAP_ADD = 1,
+	VAP_DELETE = 2,
+	VAP_UPDATE = 3
+};
+
+enum peer_type {
+	PEER_TYPE_AP,
+	PEER_TYPE_STA,
+};
+extern struct ieee80211_rate rsi_rates[12];
+extern const u16 rsi_mcsrates[8];
+
+enum sta_notify_events {
+	STA_CONNECTED = 0,
+	STA_DISCONNECTED,
+	STA_TX_ADDBA_DONE,
+	STA_TX_DELBA,
+	STA_RX_ADDBA_DONE,
+	STA_RX_DELBA
+};
+
+/* Send Frames Types */
+enum cmd_frame_type {
+	TX_DOT11_MGMT,
+	RESET_MAC_REQ,
+	RADIO_CAPABILITIES,
+	BB_PROG_VALUES_REQUEST,
+	RF_PROG_VALUES_REQUEST,
+	WAKEUP_SLEEP_REQUEST,
+	SCAN_REQUEST,
+	TSF_UPDATE,
+	PEER_NOTIFY,
+	BLOCK_HW_QUEUE,
+	SET_KEY_REQ,
+	AUTO_RATE_IND,
+	BOOTUP_PARAMS_REQUEST,
+	VAP_CAPABILITIES,
+	EEPROM_READ,
+	EEPROM_WRITE,
+	GPIO_PIN_CONFIG ,
+	SET_RX_FILTER,
+	AMPDU_IND,
+	STATS_REQUEST_FRAME,
+	BB_BUF_PROG_VALUES_REQ,
+	BBP_PROG_IN_TA,
+	BG_SCAN_PARAMS,
+	BG_SCAN_PROBE_REQ,
+	CW_MODE_REQ,
+	PER_CMD_PKT,
+	ANT_SEL_FRAME = 0x20,
+	VAP_DYNAMIC_UPDATE = 0x27,
+	COMMON_DEV_CONFIG = 0x28,
+	RADIO_PARAMS_UPDATE = 0x29,
+	WOWLAN_CONFIG_PARAMS = 0x2B,
+	FEATURES_ENABLE = 0x33,
+	WOWLAN_WAKEUP_REASON = 0xc5
+};
+
+struct rsi_mac_frame {
+	__le16 desc_word[8];
+} __packed;
+
+#define PWR_SAVE_WAKEUP_IND		BIT(0)
+#define TCP_CHECK_SUM_OFFLOAD		BIT(1)
+#define CONFIRM_REQUIRED_TO_HOST	BIT(2)
+#define ADD_DELTA_TSF			BIT(3)
+#define FETCH_RETRY_CNT_FROM_HOST_DESC	BIT(4)
+#define EOSP_INDICATION			BIT(5)
+#define REQUIRE_TSF_SYNC_CONFIRM	BIT(6)
+#define ENCAP_MGMT_PKT			BIT(7)
+#define DESC_IMMEDIATE_WAKEUP		BIT(15)
+
+struct rsi_xtended_desc {
+	u8 confirm_frame_type;
+	u8 retry_cnt;
+	u16 reserved;
+};
+
+struct rsi_cmd_desc_dword0 {
+	__le16 len_qno;
+	u8 frame_type;
+	u8 misc_flags;
+};
+
+struct rsi_cmd_desc_dword1 {
+	u8 xtend_desc_size;
+	u8 reserved1;
+	__le16 reserved2;
+};
+
+struct rsi_cmd_desc_dword2 {
+	__le32 pkt_info; /* Packet specific data */
+};
+
+struct rsi_cmd_desc_dword3 {
+	__le16 token;
+	u8 qid_tid;
+	u8 sta_id;
+};
+
+struct rsi_cmd_desc {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword1 desc_dword1;
+	struct rsi_cmd_desc_dword2 desc_dword2;
+	struct rsi_cmd_desc_dword3 desc_dword3;
+};
+
+struct rsi_boot_params {
+	__le16 desc_word[8];
+	struct bootup_params bootup_params;
+} __packed;
+
+struct rsi_boot_params_9116 {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword1 desc_dword1;
+	struct rsi_cmd_desc_dword2 desc_dword2;
+	__le16 reserved;
+	__le16 umac_clk;
+	struct bootup_params_9116 bootup_params;
+} __packed;
+
+struct rsi_peer_notify {
+	struct rsi_cmd_desc desc;
+	u8 mac_addr[6];
+	__le16 command;
+	__le16 mpdu_density;
+	__le16 reserved;
+	__le32 sta_flags;
+} __packed;
+
+/* Aggregation params flags */
+#define RSI_AGGR_PARAMS_TID_MASK	0xf
+#define RSI_AGGR_PARAMS_START		BIT(4)
+#define RSI_AGGR_PARAMS_RX_AGGR		BIT(5)
+struct rsi_aggr_params {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword0 desc_dword1;
+	__le16 seq_start;
+	__le16 baw_size;
+	__le16 token;
+	u8 aggr_params;
+	u8 peer_id;
+} __packed;
+
+struct rsi_bb_rf_prog {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	__le16 reserved1;
+	u8 rf_power_mode;
+	u8 reserved2;
+	u8 endpoint;
+	u8 reserved3;
+	__le16 reserved4;
+	__le16 reserved5;
+	__le16 flags;
+} __packed;
+
+struct rsi_chan_config {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword1 desc_dword1;
+	u8 channel_number;
+	u8 antenna_gain_offset_2g;
+	u8 antenna_gain_offset_5g;
+	u8 channel_width;
+	__le16 tx_power;
+	u8 region_rftype;
+	u8 flags;
+} __packed;
+
+struct rsi_vap_caps {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	u8 reserved1;
+	u8 status;
+	__le16 reserved2;
+	u8 vif_type;
+	u8 channel_bw;
+	__le16 antenna_info;
+	__le16 token;
+	u8 radioid_macid;
+	u8 vap_id;
+	u8 mac_addr[6];
+	__le16 keep_alive_period;
+	u8 bssid[6];
+	__le16 reserved4;
+	__le32 flags;
+	__le16 frag_threshold;
+	__le16 rts_threshold;
+	__le32 default_mgmt_rate;
+	__le16 default_ctrl_rate;
+	__le16 ctrl_rate_flags;
+	__le32 default_data_rate;
+	__le16 beacon_interval;
+	__le16 dtim_period;
+	__le16 beacon_miss_threshold;
+} __packed;
+
+struct rsi_ant_sel_frame {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	u8 reserved;
+	u8 sub_frame_type;
+	__le16 ant_value;
+	__le32 reserved1;
+	__le32 reserved2;
+} __packed;
+
+struct rsi_dynamic_s {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword1 desc_dword1;
+	struct rsi_cmd_desc_dword2 desc_dword2;
+	struct rsi_cmd_desc_dword3 desc_dword3;
+	struct framebody {
+		__le16 data_rate;
+		__le16 mgmt_rate;
+		__le16 keep_alive_period;
+	} frame_body;
+} __packed;
+
+/* Key descriptor flags */
+#define RSI_KEY_TYPE_BROADCAST	BIT(1)
+#define RSI_WEP_KEY		BIT(2)
+#define RSI_WEP_KEY_104		BIT(3)
+#define RSI_CIPHER_WPA		BIT(4)
+#define RSI_CIPHER_TKIP		BIT(5)
+#define RSI_KEY_MODE_AP		BIT(7)
+#define RSI_PROTECT_DATA_FRAMES	BIT(13)
+#define RSI_KEY_ID_MASK		0xC0
+#define RSI_KEY_ID_OFFSET	14
+struct rsi_set_key {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword1 desc_dword1;
+	__le16 key_desc;
+	__le32 bpn;
+	u8 sta_id;
+	u8 vap_id;
+	u8 key[4][32];
+	u8 tx_mic_key[8];
+	u8 rx_mic_key[8];
+} __packed;
+
+struct rsi_auto_rate {
+	struct rsi_cmd_desc desc;
+	__le16 failure_limit;
+	__le16 initial_boundary;
+	__le16 max_threshold_limt;
+	__le16 num_supported_rates;
+	__le16 aarf_rssi;
+	__le16 moderate_rate_inx;
+	__le16 collision_tolerance;
+	__le16 supported_rates[40];
+} __packed;
+
+#define QUIET_INFO_VALID	BIT(0)
+#define QUIET_ENABLE		BIT(1)
+struct rsi_block_unblock_data {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	u8 xtend_desc_size;
+	u8 host_quiet_info;
+	__le16 reserved;
+	__le16 block_q_bitmap;
+	__le16 unblock_q_bitmap;
+	__le16 token;
+	__le16 flush_q_bitmap;
+} __packed;
+
+struct qos_params {
+	__le16 cont_win_min_q;
+	__le16 cont_win_max_q;
+	__le16 aifsn_val_q;
+	__le16 txop_q;
+} __packed;
+
+struct rsi_radio_caps {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	struct rsi_cmd_desc_dword0 desc_dword1;
+	u8 channel_num;
+	u8 rf_model;
+	__le16 ppe_ack_rate;
+	__le16 mode_11j;
+	u8 radio_cfg_info;
+	u8 radio_info;
+	struct qos_params qos_params[MAX_HW_QUEUES];
+	u8 num_11n_rates;
+	u8 num_11ac_rates;
+	__le16 gcpd_per_rate[20];
+	__le16 sifs_tx_11n;
+	__le16 sifs_tx_11b;
+	__le16 slot_rx_11n;
+	__le16 ofdm_ack_tout;
+	__le16 cck_ack_tout;
+	__le16 preamble_type;
+} __packed;
+
+/* ULP GPIO flags */
+#define RSI_GPIO_MOTION_SENSOR_ULP_WAKEUP	BIT(0)
+#define RSI_GPIO_SLEEP_IND_FROM_DEVICE		BIT(1)
+#define RSI_GPIO_2_ULP				BIT(2)
+#define RSI_GPIO_PUSH_BUTTON_ULP_WAKEUP		BIT(3)
+
+/* SOC GPIO flags */
+#define RSI_GPIO_0_PSPI_CSN_0			BIT(0)
+#define RSI_GPIO_1_PSPI_CSN_1			BIT(1)
+#define RSI_GPIO_2_HOST_WAKEUP_INTR		BIT(2)
+#define RSI_GPIO_3_PSPI_DATA_0			BIT(3)
+#define RSI_GPIO_4_PSPI_DATA_1			BIT(4)
+#define RSI_GPIO_5_PSPI_DATA_2			BIT(5)
+#define RSI_GPIO_6_PSPI_DATA_3			BIT(6)
+#define RSI_GPIO_7_I2C_SCL			BIT(7)
+#define RSI_GPIO_8_I2C_SDA			BIT(8)
+#define RSI_GPIO_9_UART1_RX			BIT(9)
+#define RSI_GPIO_10_UART1_TX			BIT(10)
+#define RSI_GPIO_11_UART1_RTS_I2S_CLK		BIT(11)
+#define RSI_GPIO_12_UART1_CTS_I2S_WS		BIT(12)
+#define RSI_GPIO_13_DBG_UART_RX_I2S_DIN		BIT(13)
+#define RSI_GPIO_14_DBG_UART_RX_I2S_DOUT	BIT(14)
+#define RSI_GPIO_15_LP_WAKEUP_BOOT_BYPASS	BIT(15)
+#define RSI_GPIO_16_LED_0			BIT(16)
+#define RSI_GPIO_17_BTCOEX_WLAN_ACT_EXT_ANT_SEL	BIT(17)
+#define RSI_GPIO_18_BTCOEX_BT_PRIO_EXT_ANT_SEL	BIT(18)
+#define RSI_GPIO_19_BTCOEX_BT_ACT_EXT_ON_OFF	BIT(19)
+#define RSI_GPIO_20_RF_RESET			BIT(20)
+#define RSI_GPIO_21_SLEEP_IND_FROM_DEVICE	BIT(21)
+
+#define RSI_UNUSED_SOC_GPIO_BITMAP (RSI_GPIO_9_UART1_RX | \
+				    RSI_GPIO_10_UART1_TX | \
+				    RSI_GPIO_11_UART1_RTS_I2S_CLK | \
+				    RSI_GPIO_12_UART1_CTS_I2S_WS | \
+				    RSI_GPIO_13_DBG_UART_RX_I2S_DIN | \
+				    RSI_GPIO_14_DBG_UART_RX_I2S_DOUT | \
+				    RSI_GPIO_15_LP_WAKEUP_BOOT_BYPASS | \
+				    RSI_GPIO_17_BTCOEX_WLAN_ACT_EXT_ANT_SEL | \
+				    RSI_GPIO_18_BTCOEX_BT_PRIO_EXT_ANT_SEL | \
+				    RSI_GPIO_19_BTCOEX_BT_ACT_EXT_ON_OFF | \
+				    RSI_GPIO_21_SLEEP_IND_FROM_DEVICE)
+
+#define RSI_UNUSED_ULP_GPIO_BITMAP (RSI_GPIO_MOTION_SENSOR_ULP_WAKEUP | \
+				    RSI_GPIO_SLEEP_IND_FROM_DEVICE | \
+				    RSI_GPIO_2_ULP | \
+				    RSI_GPIO_PUSH_BUTTON_ULP_WAKEUP);
+struct rsi_config_vals {
+	__le16 len_qno;
+	u8 pkt_type;
+	u8 misc_flags;
+	__le16 reserved1[6];
+	u8 lp_ps_handshake;
+	u8 ulp_ps_handshake;
+	u8 sleep_config_params; /* 0 for no handshake,
+				 * 1 for GPIO based handshake,
+				 * 2 packet handshake
+				 */
+	u8 unused_ulp_gpio;
+	__le32 unused_soc_gpio_bitmap;
+	u8 ext_pa_or_bt_coex_en;
+	u8 opermode;
+	u8 wlan_rf_pwr_mode;
+	u8 bt_rf_pwr_mode;
+	u8 zigbee_rf_pwr_mode;
+	u8 driver_mode;
+	u8 region_code;
+	u8 antenna_sel_val;
+	u8 reserved2[16];
+} __packed;
+
+/* Packet info flags */
+#define RSI_EEPROM_HDR_SIZE_OFFSET		8
+#define RSI_EEPROM_HDR_SIZE_MASK		0x300
+#define RSI_EEPROM_LEN_OFFSET			20
+#define RSI_EEPROM_LEN_MASK			0xFFF00000
+
+struct rsi_eeprom_read_frame {
+	__le16 len_qno;
+	u8 pkt_type;
+	u8 misc_flags;
+	__le32 pkt_info;
+	__le32 eeprom_offset;
+	__le16 delay_ms;
+	__le16 reserved3;
+} __packed;
+
+struct rsi_request_ps {
+	struct rsi_cmd_desc desc;
+	struct ps_sleep_params ps_sleep;
+	u8 ps_mimic_support;
+	u8 ps_uapsd_acs;
+	u8 ps_uapsd_wakeup_period;
+	u8 reserved;
+	__le32 ps_listen_interval;
+	__le32 ps_dtim_interval_duration;
+	__le16 ps_num_dtim_intervals;
+} __packed;
+
+struct rsi_wowlan_req {
+	struct rsi_cmd_desc desc;
+	u8 sourceid[ETH_ALEN];
+	u16 wow_flags;
+	u16 host_sleep_status;
+} __packed;
+
+#define RSI_START_BGSCAN		1
+#define RSI_STOP_BGSCAN			0
+#define HOST_BG_SCAN_TRIG		BIT(4)
+struct rsi_bgscan_config {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	__le64 reserved;
+	__le32 reserved1;
+	__le16 bgscan_threshold;
+	__le16 roam_threshold;
+	__le16 bgscan_periodicity;
+	u8 num_bgscan_channels;
+	u8 two_probe;
+	__le16 active_scan_duration;
+	__le16 passive_scan_duration;
+	__le16 channels2scan[MAX_BGSCAN_CHANNELS_DUAL_BAND];
+} __packed;
+
+struct rsi_bgscan_probe {
+	struct rsi_cmd_desc_dword0 desc_dword0;
+	__le64 reserved;
+	__le32 reserved1;
+	__le16 mgmt_rate;
+	__le16 flags;
+	__le16 def_chan;
+	__le16 channel_scan_time;
+	__le16 probe_req_length;
+} __packed;
+
+#define RSI_DUTY_CYCLING	BIT(0)
+#define RSI_END_OF_FRAME	BIT(1)
+#define RSI_SIFS_TX_ENABLE	BIT(2)
+#define RSI_DPD			BIT(3)
+struct rsi_wlan_9116_features {
+	struct rsi_cmd_desc desc;
+	u8 pll_mode;
+	u8 rf_type;
+	u8 wireless_mode;
+	u8 enable_ppe;
+	u8 afe_type;
+	u8 reserved1;
+	__le16 reserved2;
+	__le32 feature_enable;
+};
+
+static inline u32 rsi_get_queueno(u8 *addr, u16 offset)
+{
+	return (le16_to_cpu(*(__le16 *)&addr[offset]) & 0x7000) >> 12;
+}
+
+static inline u32 rsi_get_length(u8 *addr, u16 offset)
+{
+	return (le16_to_cpu(*(__le16 *)&addr[offset])) & 0x0fff;
+}
+
+static inline u8 rsi_get_extended_desc(u8 *addr, u16 offset)
+{
+	return le16_to_cpu(*((__le16 *)&addr[offset + 4])) & 0x00ff;
+}
+
+static inline u8 rsi_get_rssi(u8 *addr)
+{
+	return *(u8 *)(addr + FRAME_DESC_SZ);
+}
+
+static inline u8 rsi_get_channel(u8 *addr)
+{
+	return *(char *)(addr + 15);
+}
+
+static inline void rsi_set_len_qno(__le16 *addr, u16 len, u8 qno)
+{
+	*addr = cpu_to_le16(len | ((qno & 7) << 12));
+}
+
+int rsi_handle_card_ready(struct rsi_common *common, u8 *msg);
+int rsi_mgmt_pkt_recv(struct rsi_common *common, u8 *msg);
+int rsi_set_vap_capabilities(struct rsi_common *common, enum opmode mode,
+			     u8 *mac_addr, u8 vap_id, u8 vap_status);
+int rsi_send_aggregation_params_frame(struct rsi_common *common, u16 tid,
+				      u16 ssn, u8 buf_size, u8 event,
+				      u8 sta_id);
+int rsi_hal_load_key(struct rsi_common *common, u8 *data, u16 key_len,
+		     u8 key_type, u8 key_id, u32 cipher, s16 sta_id,
+		     struct ieee80211_vif *vif);
+int rsi_set_channel(struct rsi_common *common,
+		    struct ieee80211_channel *channel);
+int rsi_send_vap_dynamic_update(struct rsi_common *common);
+int rsi_send_block_unblock_frame(struct rsi_common *common, bool event);
+int rsi_hal_send_sta_notify_frame(struct rsi_common *common, enum opmode opmode,
+				  u8 notify_event, const unsigned char *bssid,
+				  u8 qos_enable, u16 aid, u16 sta_id,
+				  struct ieee80211_vif *vif);
+void rsi_inform_bss_status(struct rsi_common *common, enum opmode opmode,
+			   u8 status, const u8 *addr, u8 qos_enable, u16 aid,
+			   struct ieee80211_sta *sta, u16 sta_id,
+			   u16 assoc_cap, struct ieee80211_vif *vif);
+void rsi_indicate_pkt_to_os(struct rsi_common *common, struct sk_buff *skb);
+int rsi_mac80211_attach(struct rsi_common *common);
+void rsi_indicate_tx_status(struct rsi_hw *common, struct sk_buff *skb,
+			    int status);
+bool rsi_is_cipher_wep(struct rsi_common *common);
+void rsi_core_qos_processor(struct rsi_common *common);
+void rsi_core_xmit(struct rsi_common *common, struct sk_buff *skb);
+int rsi_send_mgmt_pkt(struct rsi_common *common, struct sk_buff *skb);
+int rsi_send_data_pkt(struct rsi_common *common, struct sk_buff *skb);
+int rsi_band_check(struct rsi_common *common, struct ieee80211_channel *chan);
+int rsi_send_rx_filter_frame(struct rsi_common *common, u16 rx_filter_word);
+int rsi_send_radio_params_update(struct rsi_common *common);
+int rsi_set_antenna(struct rsi_common *common, u8 antenna);
+#ifdef CONFIG_PM
+int rsi_send_wowlan_request(struct rsi_common *common, u16 flags,
+			    u16 sleep_status);
+#endif
+int rsi_send_ps_request(struct rsi_hw *adapter, bool enable,
+			struct ieee80211_vif *vif);
+void init_bgscan_params(struct rsi_common *common);
+int rsi_send_bgscan_params(struct rsi_common *common, int enable);
+int rsi_send_bgscan_probe_req(struct rsi_common *common,
+			      struct ieee80211_vif *vif);
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_ps.h

@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 2017 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_PS_H__
+#define __RSI_PS_H__
+
+#define PS_CONFIRM_INDEX	12
+#define RSI_DEF_DS_WAKEUP_PERIOD	200
+#define RSI_DEF_LISTEN_INTERVAL		200
+#define RSI_SLEEP_TYPE_LP		1
+
+enum ps_state {
+	PS_NONE = 0,
+	PS_ENABLE_REQ_SENT = 1,
+	PS_DISABLE_REQ_SENT = 2,
+	PS_ENABLED = 3
+};
+
+struct ps_sleep_params {
+	u8 enable;
+	u8 sleep_type;
+	u8 connected_sleep;
+	u8 reserved1;
+	__le16 num_bcns_per_lis_int;
+	__le16 wakeup_type;
+	__le32 sleep_duration;
+} __packed;
+
+struct rsi_ps_info {
+	u8 enabled;
+	u8 sleep_type;
+	u8 tx_threshold;
+	u8 rx_threshold;
+	u8 tx_hysterisis;
+	u8 rx_hysterisis;
+	u16 monitor_interval;
+	u32 listen_interval;
+	u16 num_bcns_per_lis_int;
+	u32 dtim_interval_duration;
+	u16 num_dtims_per_sleep;
+	u32 deep_sleep_wakeup_period;
+} __packed;
+
+char *str_psstate(enum ps_state state);
+void rsi_enable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif);
+void rsi_disable_ps(struct rsi_hw *adapter, struct ieee80211_vif *vif);
+int rsi_handle_ps_confirm(struct rsi_hw *adapter, u8 *msg);
+void rsi_default_ps_params(struct rsi_hw *hw);
+void rsi_conf_uapsd(struct rsi_hw *adapter, struct ieee80211_vif *vif);
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_sdio.h

@@ -0,0 +1,138 @@
+/*
+ * @section LICENSE
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
+
+#ifndef __RSI_SDIO_INTF__
+#define __RSI_SDIO_INTF__
+
+#include <linux/mmc/card.h>
+#include <linux/mmc/mmc.h>
+#include <linux/mmc/host.h>
+#include <linux/mmc/sdio_func.h>
+#include <linux/mmc/sdio.h>
+#include <linux/mmc/sd.h>
+#include <linux/mmc/sdio_ids.h>
+#include "rsi_main.h"
+
+enum sdio_interrupt_type {
+	BUFFER_FULL         = 0x0,
+	BUFFER_AVAILABLE    = 0x2,
+	FIRMWARE_ASSERT_IND = 0x3,
+	MSDU_PACKET_PENDING = 0x4,
+	UNKNOWN_INT         = 0XE
+};
+
+/* Buffer status register related info */
+#define PKT_BUFF_SEMI_FULL                      0
+#define PKT_BUFF_FULL                           1
+#define PKT_MGMT_BUFF_FULL                      2
+#define MSDU_PKT_PENDING                        3
+#define RECV_NUM_BLOCKS                         4
+/* Interrupt Bit Related Macros */
+#define PKT_BUFF_AVAILABLE                      1
+#define FW_ASSERT_IND                           2
+
+#define RSI_MASTER_REG_BUF_SIZE			12
+
+#define RSI_DEVICE_BUFFER_STATUS_REGISTER       0xf3
+#define RSI_FN1_INT_REGISTER                    0xf9
+#define RSI_INT_ENABLE_REGISTER			0x04
+#define RSI_INT_ENABLE_MASK			0xfc
+#define RSI_SD_REQUEST_MASTER                   0x10000
+
+/* FOR SD CARD ONLY */
+#define SDIO_RX_NUM_BLOCKS_REG                  0x000F1
+#define SDIO_FW_STATUS_REG                      0x000F2
+#define SDIO_NXT_RD_DELAY2                      0x000F5
+#define SDIO_MASTER_ACCESS_MSBYTE               0x000FA
+#define SDIO_MASTER_ACCESS_LSBYTE               0x000FB
+#define SDIO_READ_START_LVL                     0x000FC
+#define SDIO_READ_FIFO_CTL                      0x000FD
+#define SDIO_WRITE_FIFO_CTL                     0x000FE
+#define SDIO_WAKEUP_REG				0x000FF
+#define SDIO_FUN1_INTR_CLR_REG                  0x0008
+#define SDIO_REG_HIGH_SPEED                     0x0013
+
+#define RSI_GET_SDIO_INTERRUPT_TYPE(_I, TYPE)      \
+	{					   \
+		TYPE =                             \
+		(_I & (1 << PKT_BUFF_AVAILABLE)) ? \
+		BUFFER_AVAILABLE :		   \
+		(_I & (1 << MSDU_PKT_PENDING)) ?   \
+		MSDU_PACKET_PENDING :              \
+		(_I & (1 << FW_ASSERT_IND)) ?      \
+		FIRMWARE_ASSERT_IND : UNKNOWN_INT; \
+	}
+
+/* common registers in SDIO function1 */
+#define TA_SOFT_RESET_REG            0x0004
+#define TA_TH0_PC_REG                0x0400
+#define TA_HOLD_THREAD_REG           0x0844
+#define TA_RELEASE_THREAD_REG        0x0848
+
+#define TA_SOFT_RST_CLR              0
+#define TA_SOFT_RST_SET              BIT(0)
+#define TA_PC_ZERO                   0
+#define TA_HOLD_THREAD_VALUE         0xF
+#define TA_RELEASE_THREAD_VALUE      0xF
+#define TA_BASE_ADDR                 0x2200
+#define MISC_CFG_BASE_ADDR           0x4105
+
+struct receive_info {
+	bool buffer_full;
+	bool semi_buffer_full;
+	bool mgmt_buffer_full;
+	u32 mgmt_buf_full_counter;
+	u32 buf_semi_full_counter;
+	u8 watch_bufferfull_count;
+	u32 sdio_intr_status_zero;
+	u32 sdio_int_counter;
+	u32 total_sdio_msdu_pending_intr;
+	u32 total_sdio_unknown_intr;
+	u32 buf_full_counter;
+	u32 buf_available_counter;
+};
+
+struct rsi_91x_sdiodev {
+	struct sdio_func *pfunction;
+	struct task_struct *sdio_irq_task;
+	struct receive_info rx_info;
+	u32 next_read_delay;
+	u32 sdio_high_speed_enable;
+	u8 sdio_clock_speed;
+	u32 cardcapability;
+	u8 prev_desc[16];
+	u16 tx_blk_size;
+	u8 write_fail;
+	bool buff_status_updated;
+	struct rsi_thread rx_thread;
+	u8 pktbuffer[8192] __aligned(4);
+};
+
+int rsi_init_sdio_slave_regs(struct rsi_hw *adapter);
+int rsi_sdio_read_register(struct rsi_hw *adapter, u32 addr, u8 *data);
+int rsi_sdio_host_intf_read_pkt(struct rsi_hw *adapter, u8 *pkt, u32 length);
+int rsi_sdio_write_register(struct rsi_hw *adapter, u8 function,
+			    u32 addr, u8 *data);
+int rsi_sdio_write_register_multiple(struct rsi_hw *adapter, u32 addr,
+				     u8 *data, u16 count);
+int rsi_sdio_master_access_msword(struct rsi_hw *adapter, u16 ms_word);
+void rsi_sdio_ack_intr(struct rsi_hw *adapter, u8 int_bit);
+int rsi_sdio_determine_event_timeout(struct rsi_hw *adapter);
+int rsi_sdio_check_buffer_status(struct rsi_hw *adapter, u8 q_num);
+void rsi_sdio_rx_thread(struct rsi_common *common);
+#endif

linux-7.2.3/drivers/net/wireless/rsi/rsi_usb.h

@@ -0,0 +1,85 @@
+/*
+ * @section LICENSE
+ * Copyright (c) 2014 Redpine Signals Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef __RSI_USB_INTF__
+#define __RSI_USB_INTF__
+
+#include <linux/usb.h>
+#include "rsi_main.h"
+#include "rsi_common.h"
+
+#define RSI_USB_VENDOR_ID	0x1618
+#define RSI_USB_PID_9113	0x9113
+#define RSI_USB_PID_9116	0x9116
+
+#define USB_INTERNAL_REG_1           0x25000
+#define RSI_USB_READY_MAGIC_NUM      0xab
+#define FW_STATUS_REG                0x41050012
+#define RSI_TA_HOLD_REG              0x22000844
+#define RSI_FW_WDT_DISABLE_REQ	     0x69
+
+#define USB_VENDOR_REGISTER_READ     0x15
+#define USB_VENDOR_REGISTER_WRITE    0x16
+#define RSI_USB_TX_HEAD_ROOM         128
+
+#define MAX_RX_URBS                  2
+#define MAX_BULK_EP                  8
+#define WLAN_EP                      1
+#define BT_EP                        2
+
+#define RSI_USB_BUF_SIZE	     4096
+#define RSI_USB_CTRL_BUF_SIZE	     0x04
+
+#define RSI_MAX_RX_USB_PKT_SIZE	3000
+
+struct rx_usb_ctrl_block {
+	u8 *data;
+	struct urb *rx_urb;
+	struct sk_buff *rx_skb;
+	u8 ep_num;
+};
+
+struct rsi_91x_usbdev {
+	void *priv;
+	struct rsi_thread rx_thread;
+	u8 endpoint;
+	struct usb_device *usbdev;
+	struct usb_interface *pfunction;
+	struct rx_usb_ctrl_block rx_cb[MAX_RX_URBS];
+	u8 *tx_buffer;
+	__le16 bulkin_size[MAX_BULK_EP];
+	u8 bulkin_endpoint_addr[MAX_BULK_EP];
+	__le16 bulkout_size[MAX_BULK_EP];
+	u8 bulkout_endpoint_addr[MAX_BULK_EP];
+	u32 tx_blk_size;
+	u8 write_fail;
+	struct sk_buff_head rx_q;
+};
+
+static inline int rsi_usb_check_queue_status(struct rsi_hw *adapter, u8 q_num)
+{
+	/* In USB, there isn't any need to check the queue status */
+	return QUEUE_NOT_FULL;
+}
+
+static inline int rsi_usb_event_timeout(struct rsi_hw *adapter)
+{
+	return EVENT_WAIT_FOREVER;
+}
+
+void rsi_usb_rx_thread(struct rsi_common *common);
+#endif