new file mode 100644
@@ -0,0 +1,934 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
+ * All rights reserved.
+ */
+
+#include <linux/irq.h>
+#include <linux/kthread.h>
+#include <linux/firmware.h>
+#include <linux/netdevice.h>
+#include <linux/inetdevice.h>
+
+#include "cfg80211.h"
+#include "wlan_cfg.h"
+
+#define WILC_MULTICAST_TABLE_SIZE 8
+
+static irqreturn_t isr_uh_routine(int irq, void *user_data)
+{
+ struct net_device *dev = user_data;
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+
+ if (wilc->close) {
+ netdev_err(dev, "Can't handle UH interrupt\n");
+ return IRQ_HANDLED;
+ }
+ return IRQ_WAKE_THREAD;
+}
+
+static irqreturn_t isr_bh_routine(int irq, void *userdata)
+{
+ struct net_device *dev = userdata;
+ struct wilc_vif *vif = netdev_priv(userdata);
+ struct wilc *wilc = vif->wilc;
+
+ if (wilc->close) {
+ netdev_err(dev, "Can't handle BH interrupt\n");
+ return IRQ_HANDLED;
+ }
+
+ wilc_handle_isr(wilc);
+
+ return IRQ_HANDLED;
+}
+
+static int init_irq(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+ int ret;
+
+ ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine,
+ isr_bh_routine,
+ IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+ "WILC_IRQ", dev);
+ if (ret) {
+ netdev_err(dev, "Failed to request IRQ [%d]\n", ret);
+ return ret;
+ }
+ netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n", wl->dev_irq_num);
+
+ return 0;
+}
+
+static void deinit_irq(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+
+ /* Deinitialize IRQ */
+ if (wilc->dev_irq_num)
+ free_irq(wilc->dev_irq_num, wilc);
+}
+
+void wilc_mac_indicate(struct wilc *wilc)
+{
+ s8 status;
+
+ wilc_wlan_cfg_get_val(wilc, WID_STATUS, &status, 1);
+ if (wilc->mac_status == WILC_MAC_STATUS_INIT) {
+ wilc->mac_status = status;
+ complete(&wilc->sync_event);
+ } else {
+ wilc->mac_status = status;
+ }
+}
+
+static struct net_device *get_if_handler(struct wilc *wilc, u8 *mac_header)
+{
+ struct net_device *ndev = NULL;
+ struct wilc_vif *vif;
+ struct ieee80211_hdr *h = (struct ieee80211_hdr *)mac_header;
+
+ list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+ if (vif->mode == WILC_STATION_MODE)
+ if (ether_addr_equal_unaligned(h->addr2, vif->bssid)) {
+ ndev = vif->ndev;
+ goto out;
+ }
+ if (vif->mode == WILC_AP_MODE)
+ if (ether_addr_equal_unaligned(h->addr1, vif->bssid)) {
+ ndev = vif->ndev;
+ goto out;
+ }
+ }
+out:
+ return ndev;
+}
+
+void wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
+{
+ struct wilc_vif *vif = netdev_priv(wilc_netdev);
+
+ if (bssid)
+ ether_addr_copy(vif->bssid, bssid);
+ else
+ eth_zero_addr(vif->bssid);
+
+ vif->mode = mode;
+}
+
+int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
+{
+ int srcu_idx;
+ u8 ret_val = 0;
+ struct wilc_vif *vif;
+
+ srcu_idx = srcu_read_lock(&wilc->srcu);
+ list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+ if (!is_zero_ether_addr(vif->bssid))
+ ret_val++;
+ }
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
+ return ret_val;
+}
+
+static int wilc_txq_task(void *vp)
+{
+ int ret;
+ u32 txq_count;
+ struct wilc *wl = vp;
+
+ complete(&wl->txq_thread_started);
+ while (1) {
+ wait_for_completion(&wl->txq_event);
+
+ if (wl->close) {
+ complete(&wl->txq_thread_started);
+
+ while (!kthread_should_stop())
+ schedule();
+ break;
+ }
+ do {
+ ret = wilc_wlan_handle_txq(wl, &txq_count);
+ if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
+ int srcu_idx;
+ struct wilc_vif *ifc;
+
+ srcu_idx = srcu_read_lock(&wl->srcu);
+ list_for_each_entry_rcu(ifc, &wl->vif_list,
+ list) {
+ if (ifc->mac_opened && ifc->ndev)
+ netif_wake_queue(ifc->ndev);
+ }
+ srcu_read_unlock(&wl->srcu, srcu_idx);
+ }
+ } while (ret == WILC_VMM_ENTRY_FULL_RETRY && !wl->close);
+ }
+ return 0;
+}
+
+static int wilc_wlan_get_firmware(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+ int chip_id;
+ const struct firmware *wilc_firmware;
+ char *firmware;
+
+ chip_id = wilc_get_chipid(wilc, false);
+
+ if (chip_id < 0x1003a0)
+ firmware = FIRMWARE_1002;
+ else
+ firmware = FIRMWARE_1003;
+
+ netdev_info(dev, "loading firmware %s\n", firmware);
+
+ if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) {
+ netdev_err(dev, "%s - firmware not available\n", firmware);
+ return -EINVAL;
+ }
+ wilc->firmware = wilc_firmware;
+
+ return 0;
+}
+
+static int wilc_start_firmware(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+ int ret = 0;
+
+ ret = wilc_wlan_start(wilc);
+ if (ret)
+ return ret;
+
+ if (!wait_for_completion_timeout(&wilc->sync_event,
+ msecs_to_jiffies(5000)))
+ return -ETIME;
+
+ return 0;
+}
+
+static int wilc1000_firmware_download(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+ int ret = 0;
+
+ if (!wilc->firmware) {
+ netdev_err(dev, "Firmware buffer is NULL\n");
+ return -ENOBUFS;
+ }
+
+ ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,
+ wilc->firmware->size);
+ if (ret)
+ return ret;
+
+ release_firmware(wilc->firmware);
+ wilc->firmware = NULL;
+
+ netdev_dbg(dev, "Download Succeeded\n");
+
+ return 0;
+}
+
+static int wilc_init_fw_config(struct net_device *dev, struct wilc_vif *vif)
+{
+ struct wilc_priv *priv = &vif->priv;
+ struct host_if_drv *hif_drv;
+ u8 b;
+ u16 hw;
+ u32 w;
+
+ netdev_dbg(dev, "Start configuring Firmware\n");
+ hif_drv = (struct host_if_drv *)priv->hif_drv;
+ netdev_dbg(dev, "Host = %p\n", hif_drv);
+
+ w = vif->iftype;
+ cpu_to_le32s(&w);
+ if (!wilc_wlan_cfg_set(vif, 1, WID_SET_OPERATION_MODE, (u8 *)&w, 4,
+ 0, 0))
+ goto fail;
+
+ b = WILC_FW_BSS_TYPE_INFRA;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BSS_TYPE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_TX_RATE_AUTO;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_TX_RATE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_OPER_MODE_G_MIXED_11B_2;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_PREAMBLE_SHORT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_11N_PROT_AUTO;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_PROT_MECH, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_ACTIVE_SCAN;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SCAN_TYPE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_SITE_SURVEY_OFF;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SITE_SURVEY, &b, 1, 0, 0))
+ goto fail;
+
+ hw = 0xffff;
+ cpu_to_le16s(&hw);
+ if (!wilc_wlan_cfg_set(vif, 0, WID_RTS_THRESHOLD, (u8 *)&hw, 2, 0, 0))
+ goto fail;
+
+ hw = 2346;
+ cpu_to_le16s(&hw);
+ if (!wilc_wlan_cfg_set(vif, 0, WID_FRAG_THRESHOLD, (u8 *)&hw, 2, 0, 0))
+ goto fail;
+
+ b = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BCAST_SSID, &b, 1, 0, 0))
+ goto fail;
+
+ b = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_QOS_ENABLE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_NO_POWERSAVE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_POWER_MANAGEMENT, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_SEC_NO;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11I_MODE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_AUTH_OPEN_SYSTEM;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_AUTH_TYPE, &b, 1, 0, 0))
+ goto fail;
+
+ b = 3;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_LISTEN_INTERVAL, &b, 1, 0, 0))
+ goto fail;
+
+ b = 3;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_DTIM_PERIOD, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_ACK_POLICY_NORMAL;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_ACK_POLICY, &b, 1, 0, 0))
+ goto fail;
+
+ b = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_USER_CONTROL_ON_TX_POWER, &b, 1,
+ 0, 0))
+ goto fail;
+
+ b = 48;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11A, &b, 1, 0, 0))
+ goto fail;
+
+ b = 28;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11B, &b, 1, 0, 0))
+ goto fail;
+
+ hw = 100;
+ cpu_to_le16s(&hw);
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BEACON_INTERVAL, (u8 *)&hw, 2, 0, 0))
+ goto fail;
+
+ b = WILC_FW_REKEY_POLICY_DISABLE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_POLICY, &b, 1, 0, 0))
+ goto fail;
+
+ w = 84600;
+ cpu_to_le32s(&w);
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PERIOD, (u8 *)&w, 4, 0, 0))
+ goto fail;
+
+ w = 500;
+ cpu_to_le32s(&w);
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PACKET_COUNT, (u8 *)&w, 4, 0,
+ 0))
+ goto fail;
+
+ b = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SHORT_SLOT_ALLOWED, &b, 1, 0,
+ 0))
+ goto fail;
+
+ b = WILC_FW_ERP_PROT_SELF_CTS;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ERP_PROT_TYPE, &b, 1, 0, 0))
+ goto fail;
+
+ b = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ENABLE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_11N_OP_MODE_HT_MIXED;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OPERATING_MODE, &b, 1, 0, 0))
+ goto fail;
+
+ b = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_TXOP_PROT_DISABLE, &b, 1, 0, 0))
+ goto fail;
+
+ b = WILC_FW_OBBS_NONHT_DETECT_PROTECT_REPORT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, &b, 1,
+ 0, 0))
+ goto fail;
+
+ b = WILC_FW_HT_PROT_RTS_CTS_NONHT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_HT_PROT_TYPE, &b, 1, 0, 0))
+ goto fail;
+
+ b = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_RIFS_PROT_ENABLE, &b, 1, 0,
+ 0))
+ goto fail;
+
+ b = 7;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_CURRENT_TX_MCS, &b, 1, 0, 0))
+ goto fail;
+
+ b = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, &b, 1,
+ 1, 1))
+ goto fail;
+
+ return 0;
+
+fail:
+ return -EINVAL;
+}
+
+static void wlan_deinitialize_threads(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+
+ wl->close = 1;
+
+ complete(&wl->txq_event);
+
+ if (wl->txq_thread) {
+ kthread_stop(wl->txq_thread);
+ wl->txq_thread = NULL;
+ }
+}
+
+static void wilc_wlan_deinitialize(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+
+ if (!wl) {
+ netdev_err(dev, "wl is NULL\n");
+ return;
+ }
+
+ if (wl->initialized) {
+ netdev_info(dev, "Deinitializing wilc1000...\n");
+
+ if (!wl->dev_irq_num &&
+ wl->hif_func->disable_interrupt) {
+ mutex_lock(&wl->hif_cs);
+ wl->hif_func->disable_interrupt(wl);
+ mutex_unlock(&wl->hif_cs);
+ }
+ complete(&wl->txq_event);
+
+ wlan_deinitialize_threads(dev);
+ deinit_irq(dev);
+
+ wilc_wlan_stop(wl, vif);
+ wilc_wlan_cleanup(dev);
+
+ wl->initialized = false;
+
+ netdev_dbg(dev, "wilc1000 deinitialization Done\n");
+ } else {
+ netdev_dbg(dev, "wilc1000 is not initialized\n");
+ }
+}
+
+static int wlan_initialize_threads(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+
+ wilc->txq_thread = kthread_run(wilc_txq_task, (void *)wilc,
+ "K_TXQ_TASK");
+ if (IS_ERR(wilc->txq_thread)) {
+ netdev_err(dev, "couldn't create TXQ thread\n");
+ wilc->close = 0;
+ return PTR_ERR(wilc->txq_thread);
+ }
+ wait_for_completion(&wilc->txq_thread_started);
+
+ return 0;
+}
+
+static int wilc_wlan_initialize(struct net_device *dev, struct wilc_vif *vif)
+{
+ int ret = 0;
+ struct wilc *wl = vif->wilc;
+
+ if (!wl->initialized) {
+ wl->mac_status = WILC_MAC_STATUS_INIT;
+ wl->close = 0;
+
+ ret = wilc_wlan_init(dev);
+ if (ret)
+ return ret;
+
+ ret = wlan_initialize_threads(dev);
+ if (ret)
+ goto fail_wilc_wlan;
+
+ if (wl->dev_irq_num && init_irq(dev)) {
+ ret = -EIO;
+ goto fail_threads;
+ }
+
+ if (!wl->dev_irq_num &&
+ wl->hif_func->enable_interrupt &&
+ wl->hif_func->enable_interrupt(wl)) {
+ ret = -EIO;
+ goto fail_irq_init;
+ }
+
+ ret = wilc_wlan_get_firmware(dev);
+ if (ret)
+ goto fail_irq_enable;
+
+ ret = wilc1000_firmware_download(dev);
+ if (ret)
+ goto fail_irq_enable;
+
+ ret = wilc_start_firmware(dev);
+ if (ret)
+ goto fail_irq_enable;
+
+ if (wilc_wlan_cfg_get(vif, 1, WID_FIRMWARE_VERSION, 1, 0)) {
+ int size;
+ char firmware_ver[20];
+
+ size = wilc_wlan_cfg_get_val(wl, WID_FIRMWARE_VERSION,
+ firmware_ver,
+ sizeof(firmware_ver));
+ firmware_ver[size] = '\0';
+ netdev_dbg(dev, "Firmware Ver = %s\n", firmware_ver);
+ }
+
+ ret = wilc_init_fw_config(dev, vif);
+ if (ret) {
+ netdev_err(dev, "Failed to configure firmware\n");
+ goto fail_fw_start;
+ }
+ wl->initialized = true;
+ return 0;
+
+fail_fw_start:
+ wilc_wlan_stop(wl, vif);
+
+fail_irq_enable:
+ if (!wl->dev_irq_num &&
+ wl->hif_func->disable_interrupt)
+ wl->hif_func->disable_interrupt(wl);
+fail_irq_init:
+ if (wl->dev_irq_num)
+ deinit_irq(dev);
+fail_threads:
+ wlan_deinitialize_threads(dev);
+fail_wilc_wlan:
+ wilc_wlan_cleanup(dev);
+ netdev_err(dev, "WLAN initialization FAILED\n");
+ } else {
+ netdev_dbg(dev, "wilc1000 already initialized\n");
+ }
+ return ret;
+}
+
+static int mac_init_fn(struct net_device *ndev)
+{
+ netif_start_queue(ndev);
+ netif_stop_queue(ndev);
+
+ return 0;
+}
+
+static int wilc_mac_open(struct net_device *ndev)
+{
+ struct wilc_vif *vif = netdev_priv(ndev);
+ struct wilc *wl = vif->wilc;
+ unsigned char mac_add[ETH_ALEN] = {0};
+ int ret = 0;
+
+ if (!wl || !wl->dev) {
+ netdev_err(ndev, "device not ready\n");
+ return -ENODEV;
+ }
+
+ netdev_dbg(ndev, "MAC OPEN[%p]\n", ndev);
+
+ ret = wilc_init_host_int(ndev);
+ if (ret)
+ return ret;
+
+ ret = wilc_wlan_initialize(ndev, vif);
+ if (ret) {
+ wilc_deinit_host_int(ndev);
+ return ret;
+ }
+
+ wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), vif->iftype,
+ vif->idx);
+ wilc_get_mac_address(vif, mac_add);
+ netdev_dbg(ndev, "Mac address: %pM\n", mac_add);
+ ether_addr_copy(ndev->dev_addr, mac_add);
+
+ if (!is_valid_ether_addr(ndev->dev_addr)) {
+ netdev_err(ndev, "Wrong MAC address\n");
+ wilc_deinit_host_int(ndev);
+ wilc_wlan_deinitialize(ndev);
+ return -EINVAL;
+ }
+
+ wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
+ vif->ndev->ieee80211_ptr,
+ vif->frame_reg[0].type,
+ vif->frame_reg[0].reg);
+ wilc_mgmt_frame_register(vif->ndev->ieee80211_ptr->wiphy,
+ vif->ndev->ieee80211_ptr,
+ vif->frame_reg[1].type,
+ vif->frame_reg[1].reg);
+ netif_wake_queue(ndev);
+ wl->open_ifcs++;
+ vif->mac_opened = 1;
+ return 0;
+}
+
+static struct net_device_stats *mac_stats(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+
+ return &vif->netstats;
+}
+
+static void wilc_set_multicast_list(struct net_device *dev)
+{
+ struct netdev_hw_addr *ha;
+ struct wilc_vif *vif = netdev_priv(dev);
+ int i;
+ u8 *mc_list;
+ u8 *cur_mc;
+
+ if (dev->flags & IFF_PROMISC)
+ return;
+
+ if (dev->flags & IFF_ALLMULTI ||
+ dev->mc.count > WILC_MULTICAST_TABLE_SIZE) {
+ wilc_setup_multicast_filter(vif, 0, 0, NULL);
+ return;
+ }
+
+ if (dev->mc.count == 0) {
+ wilc_setup_multicast_filter(vif, 1, 0, NULL);
+ return;
+ }
+
+ mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);
+ if (!mc_list)
+ return;
+
+ cur_mc = mc_list;
+ i = 0;
+ netdev_for_each_mc_addr(ha, dev) {
+ memcpy(cur_mc, ha->addr, ETH_ALEN);
+ netdev_dbg(dev, "Entry[%d]: %pM\n", i, cur_mc);
+ i++;
+ cur_mc += ETH_ALEN;
+ }
+
+ if (wilc_setup_multicast_filter(vif, 1, dev->mc.count, mc_list))
+ kfree(mc_list);
+}
+
+static void wilc_tx_complete(void *priv, int status)
+{
+ struct tx_complete_data *pv_data = priv;
+
+ dev_kfree_skb(pv_data->skb);
+ kfree(pv_data);
+}
+
+netdev_tx_t wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev)
+{
+ struct wilc_vif *vif = netdev_priv(ndev);
+ struct wilc *wilc = vif->wilc;
+ struct tx_complete_data *tx_data = NULL;
+ int queue_count;
+
+ if (skb->dev != ndev) {
+ netdev_err(ndev, "Packet not destined to this device\n");
+ return 0;
+ }
+
+ tx_data = kmalloc(sizeof(*tx_data), GFP_ATOMIC);
+ if (!tx_data) {
+ dev_kfree_skb(skb);
+ netif_wake_queue(ndev);
+ return 0;
+ }
+
+ tx_data->buff = skb->data;
+ tx_data->size = skb->len;
+ tx_data->skb = skb;
+
+ vif->netstats.tx_packets++;
+ vif->netstats.tx_bytes += tx_data->size;
+ queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
+ tx_data->buff, tx_data->size,
+ wilc_tx_complete);
+
+ if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
+ int srcu_idx;
+ struct wilc_vif *vif;
+
+ srcu_idx = srcu_read_lock(&wilc->srcu);
+ list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+ if (vif->mac_opened)
+ netif_stop_queue(vif->ndev);
+ }
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
+ }
+
+ return 0;
+}
+
+static int wilc_mac_close(struct net_device *ndev)
+{
+ struct wilc_vif *vif = netdev_priv(ndev);
+ struct wilc *wl = vif->wilc;
+
+ netdev_dbg(ndev, "Mac close\n");
+
+ if (wl->open_ifcs > 0)
+ wl->open_ifcs--;
+ else
+ return 0;
+
+ if (vif->ndev) {
+ netif_stop_queue(vif->ndev);
+
+ wilc_deinit_host_int(vif->ndev);
+ }
+
+ if (wl->open_ifcs == 0) {
+ netdev_dbg(ndev, "Deinitializing wilc1000\n");
+ wl->close = 1;
+ wilc_wlan_deinitialize(ndev);
+ }
+
+ vif->mac_opened = 0;
+
+ return 0;
+}
+
+void wilc_frmw_to_host(struct wilc *wilc, u8 *buff, u32 size,
+ u32 pkt_offset)
+{
+ unsigned int frame_len = 0;
+ int stats;
+ unsigned char *buff_to_send = NULL;
+ struct sk_buff *skb;
+ struct net_device *wilc_netdev;
+ struct wilc_vif *vif;
+
+ if (!wilc)
+ return;
+
+ wilc_netdev = get_if_handler(wilc, buff);
+ if (!wilc_netdev)
+ return;
+
+ buff += pkt_offset;
+ vif = netdev_priv(wilc_netdev);
+
+ if (size > 0) {
+ frame_len = size;
+ buff_to_send = buff;
+
+ skb = dev_alloc_skb(frame_len);
+ if (!skb)
+ return;
+
+ skb->dev = wilc_netdev;
+
+ skb_put_data(skb, buff_to_send, frame_len);
+
+ skb->protocol = eth_type_trans(skb, wilc_netdev);
+ vif->netstats.rx_packets++;
+ vif->netstats.rx_bytes += frame_len;
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+ stats = netif_rx(skb);
+ netdev_dbg(wilc_netdev, "netif_rx ret value is: %d\n", stats);
+ }
+}
+
+void wilc_wfi_mgmt_rx(struct wilc *wilc, u8 *buff, u32 size)
+{
+ int srcu_idx;
+ struct wilc_vif *vif;
+
+ srcu_idx = srcu_read_lock(&wilc->srcu);
+ list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+ u16 type = le16_to_cpup((__le16 *)buff);
+
+ if (vif->priv.p2p_listen_state &&
+ ((type == vif->frame_reg[0].type &&
+ vif->frame_reg[0].reg) ||
+ (type == vif->frame_reg[1].type &&
+ vif->frame_reg[1].reg)))
+ wilc_wfi_p2p_rx(vif, buff, size);
+
+ if (vif->monitor_flag)
+ wilc_wfi_monitor_rx(wilc->monitor_dev, buff, size);
+ }
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
+}
+
+static const struct net_device_ops wilc_netdev_ops = {
+ .ndo_init = mac_init_fn,
+ .ndo_open = wilc_mac_open,
+ .ndo_stop = wilc_mac_close,
+ .ndo_start_xmit = wilc_mac_xmit,
+ .ndo_get_stats = mac_stats,
+ .ndo_set_rx_mode = wilc_set_multicast_list,
+};
+
+void wilc_netdev_cleanup(struct wilc *wilc)
+{
+ struct wilc_vif *vif;
+ int srcu_idx, ifc_cnt = 0;
+
+ if (!wilc)
+ return;
+
+ if (wilc->firmware) {
+ release_firmware(wilc->firmware);
+ wilc->firmware = NULL;
+ }
+
+ srcu_idx = srcu_read_lock(&wilc->srcu);
+ list_for_each_entry_rcu(vif, &wilc->vif_list, list) {
+ if (vif->ndev)
+ unregister_netdev(vif->ndev);
+ }
+ srcu_read_unlock(&wilc->srcu, srcu_idx);
+
+ wilc_wfi_deinit_mon_interface(wilc, false);
+ flush_workqueue(wilc->hif_workqueue);
+ destroy_workqueue(wilc->hif_workqueue);
+
+ while (ifc_cnt < WILC_NUM_CONCURRENT_IFC) {
+ mutex_lock(&wilc->vif_mutex);
+ if (wilc->vif_num <= 0) {
+ mutex_unlock(&wilc->vif_mutex);
+ break;
+ }
+ vif = wilc_get_wl_to_vif(wilc);
+ if (!IS_ERR(vif))
+ list_del_rcu(&vif->list);
+
+ wilc->vif_num--;
+ mutex_unlock(&wilc->vif_mutex);
+ synchronize_srcu(&wilc->srcu);
+ ifc_cnt++;
+ }
+
+ wilc_wlan_cfg_deinit(wilc);
+ wlan_deinit_locks(wilc);
+ kfree(wilc->bus_data);
+ wiphy_unregister(wilc->wiphy);
+ wiphy_free(wilc->wiphy);
+}
+EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
+
+static u8 wilc_get_available_idx(struct wilc *wl)
+{
+ int idx = 0;
+ struct wilc_vif *vif;
+ int srcu_idx;
+
+ srcu_idx = srcu_read_lock(&wl->srcu);
+ list_for_each_entry_rcu(vif, &wl->vif_list, list) {
+ if (vif->idx == 0)
+ idx = 1;
+ else
+ idx = 0;
+ }
+ srcu_read_unlock(&wl->srcu, srcu_idx);
+ return idx;
+}
+
+struct wilc_vif *wilc_netdev_ifc_init(struct wilc *wl, const char *name,
+ int vif_type, enum nl80211_iftype type,
+ bool rtnl_locked)
+{
+ struct net_device *ndev;
+ struct wilc_vif *vif;
+ int ret;
+
+ ndev = alloc_etherdev(sizeof(*vif));
+ if (!ndev)
+ return ERR_PTR(-ENOMEM);
+
+ vif = netdev_priv(ndev);
+ ndev->ieee80211_ptr = &vif->priv.wdev;
+ strcpy(ndev->name, name);
+ vif->wilc = wl;
+ vif->ndev = ndev;
+ ndev->ml_priv = vif;
+
+ ndev->netdev_ops = &wilc_netdev_ops;
+
+ SET_NETDEV_DEV(ndev, wiphy_dev(wl->wiphy));
+
+ vif->priv.wdev.wiphy = wl->wiphy;
+ vif->priv.wdev.netdev = ndev;
+ vif->priv.wdev.iftype = type;
+ vif->priv.dev = ndev;
+
+ if (rtnl_locked)
+ ret = register_netdevice(ndev);
+ else
+ ret = register_netdev(ndev);
+
+ if (ret) {
+ free_netdev(ndev);
+ return ERR_PTR(-EFAULT);
+ }
+
+ ndev->needs_free_netdev = true;
+ vif->iftype = vif_type;
+ vif->idx = wilc_get_available_idx(wl);
+ vif->mac_opened = 0;
+ mutex_lock(&wl->vif_mutex);
+ list_add_tail_rcu(&vif->list, &wl->vif_list);
+ wl->vif_num += 1;
+ mutex_unlock(&wl->vif_mutex);
+ synchronize_srcu(&wl->srcu);
+
+ return vif;
+}
+
+MODULE_LICENSE("GPL");