Moved '/driver/staging/wilc1000/linux_wlan.c' to
'drivers/net/wireless/microchip/wilc/'.
Signed-off-by: Ajay Singh <ajay.kat...@microchip.com>
---
drivers/net/wireless/microchip/wilc/linux_wlan.c | 1161 ++++++++++++++++++++++
1 file changed, 1161 insertions(+)
create mode 100644 drivers/net/wireless/microchip/wilc/linux_wlan.c
diff --git a/drivers/net/wireless/microchip/wilc/linux_wlan.c
b/drivers/net/wireless/microchip/wilc/linux_wlan.c
new file mode 100644
index 0000000..76c9012
--- /dev/null
+++ b/drivers/net/wireless/microchip/wilc/linux_wlan.c
@@ -0,0 +1,1161 @@
+// 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 "wilc_wfi_cfgoperations.h"
+
+static int dev_state_ev_handler(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct in_ifaddr *dev_iface = ptr;
+ struct wilc_priv *priv;
+ struct host_if_drv *hif_drv;
+ struct net_device *dev;
+ u8 *ip_addr_buf;
+ struct wilc_vif *vif;
+ u8 null_ip[4] = {0};
+ char wlan_dev_name[5] = "wlan0";
+
+ if (!dev_iface || !dev_iface->ifa_dev || !dev_iface->ifa_dev->dev)
+ return NOTIFY_DONE;
+
+ if (memcmp(dev_iface->ifa_label, "wlan0", 5) &&
+ memcmp(dev_iface->ifa_label, "p2p0", 4))
+ return NOTIFY_DONE;
+
+ dev = (struct net_device *)dev_iface->ifa_dev->dev;
+ if (!dev->ieee80211_ptr || !dev->ieee80211_ptr->wiphy)
+ return NOTIFY_DONE;
+
+ priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
+ if (!priv)
+ return NOTIFY_DONE;
+
+ hif_drv = (struct host_if_drv *)priv->hif_drv;
+ vif = netdev_priv(dev);
+ if (!vif || !hif_drv)
+ return NOTIFY_DONE;
+
+ switch (event) {
+ case NETDEV_UP:
+ if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
+ hif_drv->ifc_up = 1;
+ vif->obtaining_ip = false;
+ del_timer(&vif->during_ip_timer);
+ }
+
+ if (vif->wilc->enable_ps)
+ wilc_set_power_mgmt(vif, 1, 0);
+
+ netdev_dbg(dev, "[%s] Up IP\n", dev_iface->ifa_label);
+
+ ip_addr_buf = (char *)&dev_iface->ifa_address;
+ netdev_dbg(dev, "IP add=%d:%d:%d:%d\n",
+ ip_addr_buf[0], ip_addr_buf[1],
+ ip_addr_buf[2], ip_addr_buf[3]);
+
+ break;
+
+ case NETDEV_DOWN:
+ if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) {
+ hif_drv->ifc_up = 0;
+ vif->obtaining_ip = false;
+ }
+
+ if (memcmp(dev_iface->ifa_label, wlan_dev_name, 5) == 0)
+ wilc_set_power_mgmt(vif, 0, 0);
+
+ wilc_resolve_disconnect_aberration(vif);
+
+ netdev_dbg(dev, "[%s] Down IP\n", dev_iface->ifa_label);
+
+ ip_addr_buf = null_ip;
+ netdev_dbg(dev, "IP add=%d:%d:%d:%d\n",
+ ip_addr_buf[0], ip_addr_buf[1],
+ ip_addr_buf[2], ip_addr_buf[3]);
+
+ break;
+
+ default:
+ break;
+ }
+
+ return NOTIFY_DONE;
+}
+
+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)
+{
+ int ret = 0;
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+
+ ret = gpiod_direction_input(wl->gpio_irq);
+ if (ret) {
+ netdev_err(dev, "could not obtain gpio for WILC_INTR\n");
+ return ret;
+ }
+
+ wl->dev_irq_num = gpiod_to_irq(wl->gpio_irq);
+
+ ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine,
+ isr_bh_routine,
+ IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+ "WILC_IRQ", dev);
+ if (ret < 0)
+ netdev_err(dev, "Failed to request IRQ\n");
+ else
+ netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n",
+ wl->dev_irq_num);
+
+ return ret;
+}
+
+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 == 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)
+{
+ u8 *bssid, *bssid1;
+ int i = 0;
+
+ bssid = mac_header + 10;
+ bssid1 = mac_header + 4;
+
+ for (i = 0; i < wilc->vif_num; i++) {
+ if (wilc->vif[i]->mode == STATION_MODE)
+ if (ether_addr_equal_unaligned(bssid,
+ wilc->vif[i]->bssid))
+ return wilc->vif[i]->ndev;
+ if (wilc->vif[i]->mode == AP_MODE)
+ if (ether_addr_equal_unaligned(bssid1,
+ wilc->vif[i]->bssid))
+ return wilc->vif[i]->ndev;
+ }
+
+ return NULL;
+}
+
+void wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode)
+{
+ struct wilc_vif *vif = netdev_priv(wilc_netdev);
+
+ memcpy(vif->bssid, bssid, 6);
+ vif->mode = mode;
+}
+
+int wilc_wlan_get_num_conn_ifcs(struct wilc *wilc)
+{
+ u8 i = 0;
+ u8 null_bssid[6] = {0};
+ u8 ret_val = 0;
+
+ for (i = 0; i < wilc->vif_num; i++)
+ if (memcmp(wilc->vif[i]->bssid, null_bssid, 6))
+ ret_val++;
+
+ return ret_val;
+}
+
+static int linux_wlan_txq_task(void *vp)
+{
+ int ret;
+ u32 txq_count;
+ struct net_device *dev = vp;
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+
+ 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(dev, &txq_count);
+ if (txq_count < FLOW_CONTROL_LOWER_THRESHOLD) {
+ if (netif_queue_stopped(wl->vif[0]->ndev))
+ netif_wake_queue(wl->vif[0]->ndev);
+ if (netif_queue_stopped(wl->vif[1]->ndev))
+ netif_wake_queue(wl->vif[1]->ndev);
+ }
+ } while (ret == WILC_TX_ERR_NO_BUF && !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, ret = 0;
+ 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);
+ ret = -1;
+ goto fail;
+ }
+ wilc->firmware = wilc_firmware;
+
+fail:
+
+ return ret;
+}
+
+static int linux_wlan_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 < 0)
+ 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 < 0)
+ return ret;
+
+ release_firmware(wilc->firmware);
+ wilc->firmware = NULL;
+
+ netdev_dbg(dev, "Download Succeeded\n");
+
+ return 0;
+}
+
+static int linux_wlan_init_test_config(struct net_device *dev,
+ struct wilc_vif *vif)
+{
+ unsigned char c_val[64];
+ struct wilc *wilc = vif->wilc;
+ struct wilc_priv *priv;
+ struct host_if_drv *hif_drv;
+
+ netdev_dbg(dev, "Start configuring Firmware\n");
+ priv = wiphy_priv(dev->ieee80211_ptr->wiphy);
+ hif_drv = (struct host_if_drv *)priv->hif_drv;
+ netdev_dbg(dev, "Host = %p\n", hif_drv);
+ wilc_get_chipid(wilc, false);
+
+ *(int *)c_val = 1;
+
+ if (!wilc_wlan_cfg_set(vif, 1, WID_SET_DRV_HANDLER, c_val, 4, 0, 0))
+ goto fail;
+
+ c_val[0] = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_PC_TEST_MODE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = INFRASTRUCTURE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BSS_TYPE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = AUTORATE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_TX_RATE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = G_MIXED_11B_2_MODE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11G_OPERATING_MODE, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_CURRENT_CHANNEL, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = G_SHORT_PREAMBLE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_PREAMBLE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = AUTO_PROT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_PROT_MECH, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = ACTIVE_SCAN;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SCAN_TYPE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = SITE_SURVEY_OFF;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SITE_SURVEY, c_val, 1, 0, 0))
+ goto fail;
+
+ *((int *)c_val) = 0xffff;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_RTS_THRESHOLD, c_val, 2, 0, 0))
+ goto fail;
+
+ *((int *)c_val) = 2346;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_FRAG_THRESHOLD, c_val, 2, 0, 0))
+ goto fail;
+
+ c_val[0] = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BCAST_SSID, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_QOS_ENABLE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = NO_POWERSAVE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_POWER_MANAGEMENT, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = NO_SECURITY; /* NO_ENCRYPT, 0x79 */
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11I_MODE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = OPEN_SYSTEM;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_AUTH_TYPE, c_val, 1, 0, 0))
+ goto fail;
+
+ strcpy(c_val, "123456790abcdef1234567890");
+ if (!wilc_wlan_cfg_set(vif, 0, WID_WEP_KEY_VALUE, c_val,
+ (strlen(c_val) + 1), 0, 0))
+ goto fail;
+
+ strcpy(c_val, "12345678");
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11I_PSK, c_val, (strlen(c_val)), 0,
+ 0))
+ goto fail;
+
+ strcpy(c_val, "password");
+ if (!wilc_wlan_cfg_set(vif, 0, WID_1X_KEY, c_val, (strlen(c_val) + 1),
+ 0, 0))
+ goto fail;
+
+ c_val[0] = 192;
+ c_val[1] = 168;
+ c_val[2] = 1;
+ c_val[3] = 112;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_1X_SERV_ADDR, c_val, 4, 0, 0))
+ goto fail;
+
+ c_val[0] = 3;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_LISTEN_INTERVAL, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 3;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_DTIM_PERIOD, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = NORMAL_ACK;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_ACK_POLICY, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_USER_CONTROL_ON_TX_POWER, c_val, 1,
+ 0, 0))
+ goto fail;
+
+ c_val[0] = 48;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11A, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = 28;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_TX_POWER_LEVEL_11B, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ *((int *)c_val) = 100;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_BEACON_INTERVAL, c_val, 2, 0, 0))
+ goto fail;
+
+ c_val[0] = REKEY_DISABLE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_POLICY, c_val, 1, 0, 0))
+ goto fail;
+
+ *((int *)c_val) = 84600;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PERIOD, c_val, 4, 0, 0))
+ goto fail;
+
+ *((int *)c_val) = 500;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_REKEY_PACKET_COUNT, c_val, 4, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_SHORT_SLOT_ALLOWED, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = G_SELF_CTS_PROT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ERP_PROT_TYPE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_ENABLE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = HT_MIXED_MODE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OPERATING_MODE, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_TXOP_PROT_DISABLE, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = DETECT_PROTECT_REPORT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_OBSS_NONHT_DETECTION, c_val, 1,
+ 0, 0))
+ goto fail;
+
+ c_val[0] = RTS_CTS_NONHT_PROT;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_HT_PROT_TYPE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 0;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_RIFS_PROT_ENABLE, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = MIMO_MODE;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_SMPS_MODE, c_val, 1, 0, 0))
+ goto fail;
+
+ c_val[0] = 7;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_CURRENT_TX_MCS, c_val, 1, 0,
+ 0))
+ goto fail;
+
+ c_val[0] = 1;
+ if (!wilc_wlan_cfg_set(vif, 0, WID_11N_IMMEDIATE_BA_ENABLED, c_val, 1,
+ 1, 1))
+ goto fail;
+
+ return 0;
+
+fail:
+ return -1;
+}
+
+static void wlan_deinit_locks(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wilc = vif->wilc;
+
+ mutex_destroy(&wilc->hif_cs);
+ mutex_destroy(&wilc->rxq_cs);
+ mutex_destroy(&wilc->txq_add_to_head_cs);
+}
+
+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);
+ wilc_wlan_cleanup(dev);
+ wlan_deinit_locks(dev);
+
+ wl->initialized = false;
+
+ netdev_dbg(dev, "wilc1000 deinitialization Done\n");
+ } else {
+ netdev_dbg(dev, "wilc1000 is not initialized\n");
+ }
+}
+
+static void wlan_init_locks(struct net_device *dev)
+{
+ struct wilc_vif *vif = netdev_priv(dev);
+ struct wilc *wl = vif->wilc;
+
+ mutex_init(&wl->hif_cs);
+ mutex_init(&wl->rxq_cs);
+
+ spin_lock_init(&wl->txq_spinlock);
+ mutex_init(&wl->txq_add_to_head_cs);
+
+ init_completion(&wl->txq_event);
+
+ init_completion(&wl->cfg_event);
+ init_completion(&wl->sync_event);
+ init_completion(&wl->txq_thread_started);
+}
+
+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(linux_wlan_txq_task, (void *)dev,
+ "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 = MAC_STATUS_INIT;
+ wl->close = 0;
+
+ wlan_init_locks(dev);
+
+ ret = wilc_wlan_init(dev);
+ if (ret < 0) {
+ ret = -EIO;
+ goto fail_locks;
+ }
+
+ if (wl->gpio_irq && init_irq(dev)) {
+ ret = -EIO;
+ goto fail_locks;
+ }
+
+ ret = wlan_initialize_threads(dev);
+ if (ret < 0) {
+ ret = -EIO;
+ goto fail_wilc_wlan;
+ }
+
+ if (!wl->dev_irq_num &&
+ wl->hif_func->enable_interrupt &&
+ wl->hif_func->enable_interrupt(wl)) {
+ ret = -EIO;
+ goto fail_irq_init;
+ }
+
+ if (wilc_wlan_get_firmware(dev)) {
+ ret = -EIO;
+ goto fail_irq_enable;
+ }
+
+ ret = wilc1000_firmware_download(dev);
+ if (ret < 0) {
+ ret = -EIO;
+ goto fail_irq_enable;
+ }
+
+ ret = linux_wlan_start_firmware(dev);
+ if (ret < 0) {
+ ret = -EIO;
+ 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 = linux_wlan_init_test_config(dev, vif);
+
+ if (ret < 0) {
+ netdev_err(dev, "Failed to configure firmware\n");
+ ret = -EIO;
+ goto fail_fw_start;
+ }
+
+ wl->initialized = true;
+ return 0;
+
+fail_fw_start:
+ wilc_wlan_stop(wl);
+
+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);
+
+ wlan_deinitialize_threads(dev);
+fail_wilc_wlan:
+ wilc_wlan_cleanup(dev);
+fail_locks:
+ wlan_deinit_locks(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;
+ struct wilc_priv *priv = wdev_priv(vif->ndev->ieee80211_ptr);
+ unsigned char mac_add[ETH_ALEN] = {0};
+ int ret = 0;
+ int i = 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 < 0)
+ return ret;
+
+ ret = wilc_wlan_initialize(ndev, vif);
+ if (ret < 0) {
+ wilc_deinit_host_int(ndev);
+ return ret;
+ }
+
+ for (i = 0; i < wl->vif_num; i++) {
+ if (ndev == wl->vif[i]->ndev) {
+ wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif),
+ vif->iftype, vif->ifc_id,
+ false);
+ wilc_set_operation_mode(vif, vif->iftype);
+ break;
+ }
+ }
+
+ wilc_get_mac_address(vif, mac_add);
+ netdev_dbg(ndev, "Mac address: %pM\n", mac_add);
+ memcpy(wl->vif[i]->src_addr, mac_add, ETH_ALEN);
+ memcpy(ndev->dev_addr, wl->vif[i]->src_addr, ETH_ALEN);
+
+ 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++;
+ priv->p2p.local_random = 0x01;
+ 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, false, 0, NULL);
+ return;
+ }
+
+ if (dev->mc.count == 0) {
+ wilc_setup_multicast_filter(vif, true, 0, NULL);
+ return;
+ }
+
+ mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_KERNEL);
+ 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, true, dev->mc.count, mc_list))
+ kfree(mc_list);
+}
+
+static void linux_wlan_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;
+ char *udp_buf;
+ struct iphdr *ih;
+ struct ethhdr *eth_h;
+
+ 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;
+
+ eth_h = (struct ethhdr *)(skb->data);
+ if (eth_h->h_proto == cpu_to_be16(0x8e88))
+ netdev_dbg(ndev, "EAPOL transmitted\n");
+
+ ih = (struct iphdr *)(skb->data + sizeof(struct ethhdr));
+
+ udp_buf = (char *)ih + sizeof(struct iphdr);
+ if ((udp_buf[1] == 68 && udp_buf[3] == 67) ||
+ (udp_buf[1] == 67 && udp_buf[3] == 68))
+ netdev_dbg(ndev, "DHCP Message transmitted, type:%x %x %x\n",
+ udp_buf[248], udp_buf[249], udp_buf[250]);
+
+ vif->netstats.tx_packets++;
+ vif->netstats.tx_bytes += tx_data->size;
+ tx_data->bssid = wilc->vif[vif->idx]->bssid;
+ queue_count = wilc_wlan_txq_add_net_pkt(ndev, (void *)tx_data,
+ tx_data->buff, tx_data->size,
+ linux_wlan_tx_complete);
+
+ if (queue_count > FLOW_CONTROL_UPPER_THRESHOLD) {
+ netif_stop_queue(wilc->vif[0]->ndev);
+ netif_stop_queue(wilc->vif[1]->ndev);
+ }
+
+ return 0;
+}
+
+static int wilc_mac_close(struct net_device *ndev)
+{
+ struct wilc_priv *priv;
+ struct wilc_vif *vif = netdev_priv(ndev);
+ struct host_if_drv *hif_drv;
+ struct wilc *wl;
+
+ if (!vif || !vif->ndev || !vif->ndev->ieee80211_ptr ||
+ !vif->ndev->ieee80211_ptr->wiphy)
+ return 0;
+
+ priv = wiphy_priv(vif->ndev->ieee80211_ptr->wiphy);
+ wl = vif->wilc;
+
+ if (!priv)
+ return 0;
+
+ hif_drv = (struct host_if_drv *)priv->hif_drv;
+
+ netdev_dbg(ndev, "Mac close\n");
+
+ if (!wl)
+ return 0;
+
+ if (!hif_drv)
+ return 0;
+
+ 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);
+ wilc_wfi_deinit_mon_interface();
+ }
+
+ vif->mac_opened = 0;
+
+ return 0;
+}
+
+void wilc_frmw_to_linux(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 i = 0;
+ struct wilc_vif *vif;
+
+ for (i = 0; i < wilc->vif_num; i++) {
+ vif = netdev_priv(wilc->vif[i]->ndev);
+ if (vif->monitor_flag) {
+ wilc_wfi_monitor_rx(buff, size);
+ return;
+ }
+ }
+
+ vif = netdev_priv(wilc->vif[1]->ndev);
+ if ((buff[0] == vif->frame_reg[0].type && vif->frame_reg[0].reg) ||
+ (buff[0] == vif->frame_reg[1].type && vif->frame_reg[1].reg))
+ wilc_wfi_p2p_rx(wilc->vif[1]->ndev, buff, size);
+}
+
+static struct notifier_block g_dev_notifier = {
+ .notifier_call = dev_state_ev_handler
+};
+
+void wilc_netdev_cleanup(struct wilc *wilc)
+{
+ int i;
+
+ if (!wilc)
+ return;
+
+ if (wilc->vif[0]->ndev || wilc->vif[1]->ndev)
+ unregister_inetaddr_notifier(&g_dev_notifier);
+
+ if (wilc->firmware) {
+ release_firmware(wilc->firmware);
+ wilc->firmware = NULL;
+ }
+
+ if (wilc->vif[0]->ndev || wilc->vif[1]->ndev) {
+ for (i = 0; i < NUM_CONCURRENT_IFC; i++)
+ if (wilc->vif[i]->ndev)
+ if (wilc->vif[i]->mac_opened)
+ wilc_mac_close(wilc->vif[i]->ndev);
+
+ for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
+ unregister_netdev(wilc->vif[i]->ndev);
+ wilc_free_wiphy(wilc->vif[i]->ndev);
+ free_netdev(wilc->vif[i]->ndev);
+ }
+ }
+
+ flush_workqueue(wilc->hif_workqueue);
+ destroy_workqueue(wilc->hif_workqueue);
+ wilc_wlan_cfg_deinit(wilc);
+ kfree(wilc->bus_data);
+ kfree(wilc);
+}
+EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
+
+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,
+};
+
+int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type,
+ const struct wilc_hif_func *ops)
+{
+ int i, ret;
+ struct wilc_vif *vif;
+ struct net_device *ndev;
+ struct wilc *wl;
+
+ wl = kzalloc(sizeof(*wl), GFP_KERNEL);
+ if (!wl)
+ return -ENOMEM;
+
+ ret = wilc_wlan_cfg_init(wl);
+ if (ret)
+ goto free_wl;
+
+ *wilc = wl;
+ wl->io_type = io_type;
+ wl->hif_func = ops;
+ wl->enable_ps = true;
+ wl->chip_ps_state = CHIP_WAKEDUP;
+ INIT_LIST_HEAD(&wl->txq_head.list);
+ INIT_LIST_HEAD(&wl->rxq_head.list);
+
+ wl->hif_workqueue = create_singlethread_workqueue("WILC_wq");
+ if (!wl->hif_workqueue) {
+ ret = -ENOMEM;
+ goto free_cfg;
+ }
+
+ register_inetaddr_notifier(&g_dev_notifier);
+
+ for (i = 0; i < NUM_CONCURRENT_IFC; i++) {
+ struct wireless_dev *wdev;
+
+ ndev = alloc_etherdev(sizeof(struct wilc_vif));
+ if (!ndev) {
+ ret = -ENOMEM;
+ goto free_ndev;
+ }
+
+ vif = netdev_priv(ndev);
+ memset(vif, 0, sizeof(struct wilc_vif));
+
+ if (i == 0) {
+ strcpy(ndev->name, "wlan%d");
+ vif->ifc_id = 1;
+ } else {
+ strcpy(ndev->name, "p2p%d");
+ vif->ifc_id = 0;
+ }
+ vif->wilc = *wilc;
+ vif->ndev = ndev;
+ wl->vif[i] = vif;
+ wl->vif_num = i;
+ vif->idx = wl->vif_num;
+
+ ndev->netdev_ops = &wilc_netdev_ops;
+
+ wdev = wilc_create_wiphy(ndev, dev);
+ if (!wdev) {
+ netdev_err(ndev, "Can't register WILC Wiphy\n");
+ ret = -ENOMEM;
+ goto free_ndev;
+ }
+
+ SET_NETDEV_DEV(ndev, dev);
+
+ vif->ndev->ieee80211_ptr = wdev;
+ vif->ndev->ml_priv = vif;
+ wdev->netdev = vif->ndev;
+ vif->netstats.rx_packets = 0;
+ vif->netstats.tx_packets = 0;
+ vif->netstats.rx_bytes = 0;
+ vif->netstats.tx_bytes = 0;
+
+ ret = register_netdev(ndev);
+ if (ret)
+ goto free_ndev;
+
+ vif->iftype = STATION_MODE;
+ vif->mac_opened = 0;
+ }
+
+ return 0;
+
+free_ndev:
+ for (; i >= 0; i--) {
+ if (wl->vif[i]) {
+ if (wl->vif[i]->iftype == STATION_MODE)
+ unregister_netdev(wl->vif[i]->ndev);
+
+ if (wl->vif[i]->ndev) {
+ wilc_free_wiphy(wl->vif[i]->ndev);
+ free_netdev(wl->vif[i]->ndev);
+ }
+ }
+ }
+ unregister_inetaddr_notifier(&g_dev_notifier);
+ destroy_workqueue(wl->hif_workqueue);
+free_cfg:
+ wilc_wlan_cfg_deinit(wl);
+free_wl:
+ kfree(wl);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(wilc_netdev_init);
+
+MODULE_LICENSE("GPL");
--
2.7.4
