cregit-Linux how code gets into the kernel

Release 4.7 drivers/staging/wilc1000/linux_wlan.c

#include "wilc_wfi_cfgoperations.h"
#include "wilc_wlan_if.h"
#include "wilc_wlan.h"

#include <linux/slab.h>
#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/workqueue.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/gpio.h>

#include <linux/kthread.h>
#include <linux/firmware.h>

#include <linux/init.h>
#include <linux/netdevice.h>
#include <linux/inetdevice.h>
#include <linux/etherdevice.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/skbuff.h>

#include <linux/semaphore.h>
#include <linux/completion.h>

static int dev_state_ev_handler(struct notifier_block *this,
				unsigned long event, void *ptr);


static struct notifier_block g_dev_notifier = {
	.notifier_call = dev_state_ev_handler
};


static struct semaphore close_exit_sync;

static int wlan_deinit_locks(struct net_device *dev);
static void wlan_deinitialize_threads(struct net_device *dev);

static void linux_wlan_tx_complete(void *priv, int status);
static int  mac_init_fn(struct net_device *ndev);
static struct net_device_stats *mac_stats(struct net_device *dev);
static int  mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd);
static void wilc_set_multicast_list(struct net_device *dev);


bool wilc_enable_ps = true;


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_do_ioctl = mac_ioctl,
	.ndo_get_stats = mac_stats,
	.ndo_set_rx_mode  = wilc_set_multicast_list,

};


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; wilc_optaining_ip = false; del_timer(&wilc_during_ip_timer); } if (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]); wilc_setup_ipaddress(vif, ip_addr_buf, vif->idx); break; case NETDEV_DOWN: if (vif->iftype == STATION_MODE || vif->iftype == CLIENT_MODE) { hif_drv->IFC_UP = 0; wilc_optaining_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]); wilc_setup_ipaddress(vif, ip_addr_buf, vif->idx); break; default: break; } return NOTIFY_DONE; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim34781.65%16.25%
leo kimleo kim419.65%743.75%
glen leeglen lee204.71%212.50%
arnd bergmannarnd bergmann92.12%16.25%
greg kroah-hartmangreg kroah-hartman30.71%212.50%
chandra s gorentlachandra s gorentla20.47%16.25%
dean leedean lee20.47%16.25%
chaehyun limchaehyun lim10.24%16.25%
Total425100.00%16100.00%


static irqreturn_t isr_uh_routine(int irq, void *user_data) { struct wilc_vif *vif; struct wilc *wilc; struct net_device *dev = user_data; vif = netdev_priv(dev); wilc = vif->wilc; if (wilc->close) { netdev_err(dev, "Can't handle UH interrupt\n"); return IRQ_HANDLED; } return IRQ_WAKE_THREAD; }

Contributors

PersonTokensPropCommitsCommitProp
glen leeglen lee3148.44%250.00%
johnny kimjohnny kim2945.31%125.00%
leo kimleo kim46.25%125.00%
Total64100.00%4100.00%


static irqreturn_t isr_bh_routine(int irq, void *userdata) { struct wilc_vif *vif; struct wilc *wilc; struct net_device *dev = userdata; vif = netdev_priv(userdata); 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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim2942.03%114.29%
glen leeglen lee2840.58%457.14%
leo kimleo kim1115.94%114.29%
arnd bergmannarnd bergmann11.45%114.29%
Total69100.00%7100.00%


static int init_irq(struct net_device *dev) { int ret = 0; struct wilc_vif *vif; struct wilc *wl; vif = netdev_priv(dev); wl = vif->wilc; if ((gpio_request(wl->gpio, "WILC_INTR") == 0) && (gpio_direction_input(wl->gpio) == 0)) { wl->dev_irq_num = gpio_to_irq(wl->gpio); } else { ret = -1; netdev_err(dev, "could not obtain gpio for WILC_INTR\n"); } if (ret != -1 && request_threaded_irq(wl->dev_irq_num, isr_uh_routine, isr_bh_routine, IRQF_TRIGGER_LOW | IRQF_ONESHOT, "WILC_IRQ", dev) < 0) { netdev_err(dev, "Failed to request IRQ GPIO: %d\n", wl->gpio); gpio_free(wl->gpio); ret = -1; } else { netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d on GPIO: %d\n", wl->dev_irq_num, wl->gpio); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim10864.67%114.29%
glen leeglen lee2514.97%342.86%
arnd bergmannarnd bergmann2213.17%114.29%
leo kimleo kim95.39%114.29%
tony chotony cho31.80%114.29%
Total167100.00%7100.00%


static void deinit_irq(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; vif = netdev_priv(dev); wilc = vif->wilc; /* Deintialize IRQ */ if (wilc->dev_irq_num) { free_irq(wilc->dev_irq_num, wilc); gpio_free(wilc->gpio); } }

Contributors

PersonTokensPropCommitsCommitProp
glen leeglen lee2847.46%240.00%
johnny kimjohnny kim2644.07%120.00%
arnd bergmannarnd bergmann46.78%120.00%
tony chotony cho11.69%120.00%
Total59100.00%5100.00%


int wilc_lock_timeout(struct wilc *nic, void *vp, u32 timeout) { /* FIXME: replace with mutex_lock or wait_for_completion */ int error = -1; if (vp) error = down_timeout(vp, msecs_to_jiffies(timeout)); return error; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim3581.40%133.33%
arnd bergmannarnd bergmann716.28%133.33%
chaehyun limchaehyun lim12.33%133.33%
Total43100.00%3100.00%


void wilc_mac_indicate(struct wilc *wilc, int flag) { int status; if (flag == WILC_MAC_INDICATE_STATUS) { wilc_wlan_cfg_get_val(WID_STATUS, (unsigned char *)&status, 4); if (wilc->mac_status == WILC_MAC_STATUS_INIT) { wilc->mac_status = status; up(&wilc->sync_event); } else { wilc->mac_status = status; } } }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim6083.33%120.00%
glen leeglen lee1013.89%240.00%
arnd bergmannarnd bergmann11.39%120.00%
greg kroah-hartmangreg kroah-hartman11.39%120.00%
Total72100.00%5100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim8158.27%16.67%
glen leeglen lee3323.74%320.00%
leo kimleo kim117.91%533.33%
tony chotony cho117.91%426.67%
chaehyun limchaehyun lim21.44%16.67%
arnd bergmannarnd bergmann10.72%16.67%
Total139100.00%15100.00%


int wilc_wlan_set_bssid(struct net_device *wilc_netdev, u8 *bssid, u8 mode) { int i = 0; int ret = -1; struct wilc_vif *vif; struct wilc *wilc; vif = netdev_priv(wilc_netdev); wilc = vif->wilc; for (i = 0; i < wilc->vif_num; i++) if (wilc->vif[i]->ndev == wilc_netdev) { memcpy(wilc->vif[i]->bssid, bssid, 6); wilc->vif[i]->mode = mode; ret = 0; break; } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim6556.03%18.33%
glen leeglen lee4236.21%433.33%
tony chotony cho54.31%433.33%
leo kimleo kim21.72%18.33%
chaehyun limchaehyun lim10.86%18.33%
arnd bergmannarnd bergmann10.86%18.33%
Total116100.00%12100.00%


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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim5579.71%112.50%
arnd bergmannarnd bergmann710.14%225.00%
chaehyun limchaehyun lim34.35%112.50%
tony chotony cho34.35%337.50%
glen leeglen lee11.45%112.50%
Total69100.00%8100.00%


static int linux_wlan_txq_task(void *vp) { int ret, txq_count; struct wilc_vif *vif; struct wilc *wl; struct net_device *dev = vp; vif = netdev_priv(dev); wl = vif->wilc; complete(&wl->txq_thread_started); while (1) { down(&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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim12468.51%110.00%
glen leeglen lee4625.41%550.00%
tony chotony cho84.42%220.00%
leo kimleo kim21.10%110.00%
greg kroah-hartmangreg kroah-hartman10.55%110.00%
Total181100.00%10100.00%


int wilc_wlan_get_firmware(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; int chip_id, ret = 0; const struct firmware *wilc_firmware; char *firmware; vif = netdev_priv(dev); wilc = vif->wilc; 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 (!(&vif->ndev->dev)) goto _fail_; if (request_firmware(&wilc_firmware, firmware, wilc->dev) != 0) { netdev_err(dev, "%s - firmare not available\n", firmware); ret = -1; goto _fail_; } wilc->firmware = wilc_firmware; _fail_: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim8659.72%110.00%
glen leeglen lee4934.03%440.00%
leo kimleo kim64.17%220.00%
arnd bergmannarnd bergmann10.69%110.00%
chris parkchris park10.69%110.00%
tony chotony cho10.69%110.00%
Total144100.00%10100.00%


static int linux_wlan_start_firmware(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; int ret = 0; vif = netdev_priv(dev); wilc = vif->wilc; ret = wilc_wlan_start(wilc); if (ret < 0) return ret; ret = wilc_lock_timeout(wilc, &wilc->sync_event, 5000); if (ret) return ret; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim3848.10%116.67%
glen leeglen lee2835.44%350.00%
leo kimleo kim78.86%116.67%
arnd bergmannarnd bergmann67.59%116.67%
Total79100.00%6100.00%


static int wilc1000_firmware_download(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; int ret = 0; vif = netdev_priv(dev); wilc = vif->wilc; 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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim5348.18%19.09%
glen leeglen lee3632.73%436.36%
leo kimleo kim1110.00%218.18%
tony chotony cho65.45%218.18%
arnd bergmannarnd bergmann32.73%19.09%
chandra s gorentlachandra s gorentla10.91%19.09%
Total110100.00%11100.00%


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] = RATE_AUTO; 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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim126389.01%318.75%
glen leeglen lee1399.80%531.25%
leo kimleo kim120.85%425.00%
arnd bergmannarnd bergmann20.14%16.25%
chris parkchris park10.07%16.25%
tony chotony cho10.07%16.25%
chaehyun limchaehyun lim10.07%16.25%
Total1419100.00%16100.00%


void wilc1000_wlan_deinit(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wl; vif = netdev_priv(dev); 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); } if (&wl->txq_event) up(&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"); } }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim7545.18%15.56%
glen leeglen lee5834.94%1055.56%
arnd bergmannarnd bergmann2414.46%316.67%
leo kimleo kim42.41%15.56%
tony chotony cho31.81%211.11%
greg kroah-hartmangreg kroah-hartman21.20%15.56%
Total166100.00%18100.00%


static int wlan_init_locks(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wl; vif = netdev_priv(dev); wl = vif->wilc; mutex_init(&wl->hif_cs); mutex_init(&wl->rxq_cs); spin_lock_init(&wl->txq_spinlock); sema_init(&wl->txq_add_to_head_cs, 1); sema_init(&wl->txq_event, 0); sema_init(&wl->cfg_event, 0); sema_init(&wl->sync_event, 0); init_completion(&wl->txq_thread_started); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim6660.55%111.11%
glen leeglen lee3330.28%222.22%
greg kroah-hartmangreg kroah-hartman76.42%333.33%
tony chotony cho10.92%111.11%
arnd bergmannarnd bergmann10.92%111.11%
leo kimleo kim10.92%111.11%
Total109100.00%9100.00%


static int wlan_deinit_locks(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; vif = netdev_priv(dev); wilc = vif->wilc; if (&wilc->hif_cs) mutex_destroy(&wilc->hif_cs); if (&wilc->rxq_cs) mutex_destroy(&wilc->rxq_cs); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim3552.24%120.00%
glen leeglen lee2943.28%240.00%
greg kroah-hartmangreg kroah-hartman22.99%120.00%
tony chotony cho11.49%120.00%
Total67100.00%5100.00%


static int wlan_initialize_threads(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wilc; vif = netdev_priv(dev); wilc = vif->wilc; wilc->txq_thread = kthread_run(linux_wlan_txq_task, (void *)dev, "K_TXQ_TASK"); if (!wilc->txq_thread) { netdev_err(dev, "couldn't create TXQ thread\n"); wilc->close = 0; return -ENOBUFS; } wait_for_completion(&wilc->txq_thread_started); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim4551.14%112.50%
glen leeglen lee3135.23%337.50%
leo kimleo kim1112.50%337.50%
arnd bergmannarnd bergmann11.14%112.50%
Total88100.00%8100.00%


static void wlan_deinitialize_threads(struct net_device *dev) { struct wilc_vif *vif; struct wilc *wl; vif = netdev_priv(dev); wl = vif->wilc; wl->close = 1; if (&wl->txq_event) up(&wl->txq_event); if (wl->txq_thread) { kthread_stop(wl->txq_thread); wl->txq_thread = NULL; } }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim4356.58%120.00%
glen leeglen lee3140.79%240.00%
greg kroah-hartmangreg kroah-hartman11.32%120.00%
tony chotony cho11.32%120.00%
Total76100.00%5100.00%


int wilc1000_wlan_init(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; wlan_init_locks(dev); ret = wilc_wlan_init(dev); if (ret < 0) { ret = -EIO; goto _fail_locks_; } if (wl->gpio >= 0 && 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(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 Iinitialization FAILED\n"); } else { netdev_dbg(dev, "wilc1000 already initialized\n"); } return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim27669.17%13.45%
arnd bergmannarnd bergmann5213.03%413.79%
glen leeglen lee4010.03%2172.41%
leo kimleo kim164.01%13.45%
tony chotony cho153.76%26.90%
Total399100.00%29100.00%


static int mac_init_fn(struct net_device *ndev) { netif_start_queue(ndev); netif_stop_queue(ndev); return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim2395.83%150.00%
arnd bergmannarnd bergmann14.17%150.00%
Total24100.00%2100.00%


int wilc_mac_open(struct net_device *ndev) { struct wilc_vif *vif; unsigned char mac_add[ETH_ALEN] = {0}; int ret = 0; int i = 0; struct wilc *wl; vif = netdev_priv(ndev); wl = vif->wilc; 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 = wilc1000_wlan_init(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) { if (vif->iftype == AP_MODE) { wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), 0); } else if (!wilc_wlan_get_num_conn_ifcs(wl)) { wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), wl->open_ifcs); } else { if (memcmp(wl->vif[i ^ 1]->bssid, wl->vif[i ^ 1]->src_addr, 6)) wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), 0); else wilc_set_wfi_drv_handler(vif, wilc_get_vif_idx(vif), 1); } wilc_set_operation_mode(vif, vif->iftype); 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); break; } } 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); wilc1000_wlan_deinit(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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim19944.72%14.00%
glen leeglen lee18341.12%728.00%
leo kimleo kim296.52%624.00%
chandra s gorentlachandra s gorentla194.27%14.00%
chaehyun limchaehyun lim81.80%416.00%
tony chotony cho51.12%416.00%
arnd bergmannarnd bergmann20.45%28.00%
Total445100.00%25100.00%


static struct net_device_stats *mac_stats(struct net_device *dev) { struct wilc_vif *vif = netdev_priv(dev); return &vif->netstats; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim2482.76%133.33%
glen leeglen lee413.79%133.33%
arnd bergmannarnd bergmann13.45%133.33%
Total29100.00%3100.00%


static void wilc_set_multicast_list(struct net_device *dev) { struct netdev_hw_addr *ha; struct wilc_vif *vif; int i = 0; vif = netdev_priv(dev); 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); return; } if ((dev->mc.count) == 0) { wilc_setup_multicast_filter(vif, true, 0); return; } netdev_for_each_mc_addr(ha, dev) { memcpy(wilc_multicast_mac_addr_list[i], ha->addr, ETH_ALEN); netdev_dbg(dev, "Entry[%d]: %x:%x:%x:%x:%x:%x\n", i, wilc_multicast_mac_addr_list[i][0], wilc_multicast_mac_addr_list[i][1], wilc_multicast_mac_addr_list[i][2], wilc_multicast_mac_addr_list[i][3], wilc_multicast_mac_addr_list[i][4], wilc_multicast_mac_addr_list[i][5]); i++; } wilc_setup_multicast_filter(vif, true, (dev->mc.count)); }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim16283.08%116.67%
glen leeglen lee178.72%116.67%
arnd bergmannarnd bergmann105.13%116.67%
dean leedean lee31.54%116.67%
leo kimleo kim21.03%116.67%
chaehyun limchaehyun lim10.51%116.67%
Total195100.00%6100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim3196.88%150.00%
greg kroah-hartmangreg kroah-hartman13.12%150.00%
Total32100.00%2100.00%


int wilc_mac_xmit(struct sk_buff *skb, struct net_device *ndev) { struct wilc_vif *vif; struct tx_complete_data *tx_data = NULL; int queue_count; char *udp_buf; struct iphdr *ih; struct ethhdr *eth_h; struct wilc *wilc; vif = netdev_priv(ndev); wilc = vif->wilc; 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 == 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; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim28582.85%15.56%
glen leeglen lee277.85%527.78%
leo kimleo kim246.98%738.89%
tony chotony cho61.74%316.67%
arnd bergmannarnd bergmann10.29%15.56%
greg kroah-hartmangreg kroah-hartman10.29%15.56%
Total344100.00%18100.00%


int wilc_mac_close(struct net_device *ndev) { struct wilc_priv *priv; struct wilc_vif *vif; struct host_if_drv *hif_drv; struct wilc *wl; vif = netdev_priv(ndev); 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; wilc1000_wlan_deinit(ndev); WILC_WFI_deinit_mon_interface(); } up(&close_exit_sync); vif->mac_opened = 0; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim15471.96%17.14%
glen leeglen lee3817.76%428.57%
leo kimleo kim188.41%535.71%
chaehyun limchaehyun lim20.93%214.29%
greg kroah-hartmangreg kroah-hartman10.47%17.14%
arnd bergmannarnd bergmann10.47%17.14%
Total214100.00%14100.00%


static int mac_ioctl(struct net_device *ndev, struct ifreq *req, int cmd) { u8 *buff = NULL; s8 rssi; u32 size = 0, length = 0; struct wilc_vif *vif; s32 ret = 0; struct wilc *wilc; vif = netdev_priv(ndev); wilc = vif->wilc; if (!wilc->initialized) return 0; switch (cmd) { case SIOCSIWPRIV: { struct iwreq *wrq = (struct iwreq *)req; size = wrq->u.data.length; if (size && wrq->u.data.pointer) { buff = memdup_user(wrq->u.data.pointer, wrq->u.data.length); if (IS_ERR(buff)) return PTR_ERR(buff); if (strncasecmp(buff, "RSSI", length) == 0) { ret = wilc_get_rssi(vif, &rssi); netdev_info(ndev, "RSSI :%d\n", rssi); rssi += 5; snprintf(buff, size, "rssi %d", rssi); if (copy_to_user(wrq->u.data.pointer, buff, size)) { netdev_err(ndev, "failed to copy\n"); ret = -EFAULT; goto done; } } } } break; default: { netdev_info(ndev, "Command - %d - has been received\n", cmd); ret = -EOPNOTSUPP; goto done; } } done: kfree(buff); return ret; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim21880.74%16.25%
glen leeglen lee186.67%318.75%
leo kimleo kim134.81%318.75%
hari prasath gujulan elangohari prasath gujulan elango124.44%16.25%
chaehyun limchaehyun lim31.11%318.75%
sudip mukherjeesudip mukherjee20.74%16.25%
arnd bergmannarnd bergmann20.74%212.50%
greg kroah-hartmangreg kroah-hartman10.37%16.25%
tony chotony cho10.37%16.25%
Total270100.00%16100.00%


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; memcpy(skb_put(skb, frame_len), 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); } }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim15284.44%19.09%
glen leeglen lee137.22%327.27%
leo kimleo kim116.11%436.36%
chaehyun limchaehyun lim31.67%218.18%
arnd bergmannarnd bergmann10.56%19.09%
Total180100.00%11100.00%


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); }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim11976.28%19.09%
glen leeglen lee2214.10%327.27%
tony chotony cho74.49%327.27%
leo kimleo kim63.85%218.18%
chaehyun limchaehyun lim21.28%218.18%
Total156100.00%11100.00%


void wilc_netdev_cleanup(struct wilc *wilc) { int i = 0; struct wilc_vif *vif[NUM_CONCURRENT_IFC]; if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) { unregister_inetaddr_notifier(&g_dev_notifier); for (i = 0; i < NUM_CONCURRENT_IFC; i++) vif[i] = netdev_priv(wilc->vif[i]->ndev); } if (wilc && wilc->firmware) { release_firmware(wilc->firmware); wilc->firmware = NULL; } if (wilc && (wilc->vif[0]->ndev || wilc->vif[1]->ndev)) { wilc_lock_timeout(wilc, &close_exit_sync, 5 * 1000); for (i = 0; i < NUM_CONCURRENT_IFC; i++) if (wilc->vif[i]->ndev) if (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); } } kfree(wilc); }

Contributors

PersonTokensPropCommitsCommitProp
tony chotony cho19880.16%220.00%
glen leeglen lee3614.57%440.00%
leo kimleo kim83.24%110.00%
arnd bergmannarnd bergmann52.02%330.00%
Total247100.00%10100.00%

EXPORT_SYMBOL_GPL(wilc_netdev_cleanup);
int wilc_netdev_init(struct wilc **wilc, struct device *dev, int io_type, int gpio, const struct wilc_hif_func *ops) { int i, ret; struct wilc_vif *vif; struct net_device *ndev; struct wilc *wl; sema_init(&close_exit_sync, 0); wl = kzalloc(sizeof(*wl), GFP_KERNEL); if (!wl) return -ENOMEM; *wilc = wl; wl->io_type = io_type; wl->gpio = gpio; wl->hif_func = ops; register_inetaddr_notifier(&g_dev_notifier); for (i = 0; i < NUM_CONCURRENT_IFC; i++) { ndev = alloc_etherdev(sizeof(struct wilc_vif)); if (!ndev) return -ENOMEM; vif = netdev_priv(ndev); memset(vif, 0, sizeof(struct wilc_vif)); if (i == 0) strcpy(ndev->name, "wlan%d"); else strcpy(ndev->name, "p2p%d"); vif->idx = wl->vif_num; vif->wilc = *wilc; wl->vif[i] = vif; wl->vif[wl->vif_num]->ndev = ndev; wl->vif_num++; ndev->netdev_ops = &wilc_netdev_ops; { struct wireless_dev *wdev; wdev = wilc_create_wiphy(ndev, dev); if (dev) SET_NETDEV_DEV(ndev, dev); if (!wdev) { netdev_err(ndev, "Can't register WILC Wiphy\n"); return -1; } 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) return ret; vif->iftype = STATION_MODE; vif->mac_opened = 0; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim22661.75%13.85%
arnd bergmannarnd bergmann5715.57%623.08%
glen leeglen lee4111.20%623.08%
tony chotony cho154.10%519.23%
chaehyun limchaehyun lim113.01%311.54%
amitoj kaur chawlaamitoj kaur chawla102.73%13.85%
leo kimleo kim51.37%311.54%
greg kroah-hartmangreg kroah-hartman10.27%13.85%
Total366100.00%26100.00%

EXPORT_SYMBOL_GPL(wilc_netdev_init); MODULE_LICENSE("GPL");

Overall Contributors

PersonTokensPropCommitsCommitProp
johnny kimjohnny kim474469.70%32.00%
glen leeglen lee114116.76%5939.33%
tony chotony cho2944.32%117.33%
leo kimleo kim2673.92%3221.33%
arnd bergmannarnd bergmann2433.57%149.33%
chaehyun limchaehyun lim390.57%149.33%
chandra s gorentlachandra s gorentla220.32%21.33%
greg kroah-hartmangreg kroah-hartman220.32%96.00%
hari prasath gujulan elangohari prasath gujulan elango120.18%10.67%
amitoj kaur chawlaamitoj kaur chawla100.15%10.67%
dean leedean lee70.10%10.67%
chris parkchris park20.03%10.67%
sudip mukherjeesudip mukherjee20.03%10.67%
guenter roeckguenter roeck10.01%10.67%
Total6806100.00%150100.00%
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{% endraw %}