1 // SPDX-License-Identifier: GPL-2.0
3  * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
9 #include <linux/firmware.h>
21 #define WILC1000_FW_PREFIX		"atmel/wilc1000_wifi_firmware-"
29 	struct wilc *wilc = vif->wilc;  in isr_uh_routine()
31 	if (wilc->close) {  in isr_uh_routine()
42 	struct wilc *wilc = vif->wilc;  in isr_bh_routine()
44 	if (wilc->close) {  in isr_bh_routine()
57 	struct wilc *wl = vif->wilc;  in init_irq()
60 	ret = request_threaded_irq(wl->dev_irq_num, isr_uh_routine,  in init_irq()
68 	netdev_dbg(dev, "IRQ request succeeded IRQ-NUM= %d\n", wl->dev_irq_num);  in init_irq()
76 	struct wilc *wilc = vif->wilc;  in deinit_irq()
79 	if (wilc->dev_irq_num)  in deinit_irq()
80 		free_irq(wilc->dev_irq_num, wilc);  in deinit_irq()
88 	if (wilc->mac_status == WILC_MAC_STATUS_INIT) {  in wilc_mac_indicate()
89 		wilc->mac_status = status;  in wilc_mac_indicate()
90 		complete(&wilc->sync_event);  in wilc_mac_indicate()
92 		wilc->mac_status = status;  in wilc_mac_indicate()
102 	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {  in get_if_handler()
103 		if (vif->mode == WILC_STATION_MODE)  in get_if_handler()
104 			if (ether_addr_equal_unaligned(h->addr2, vif->bssid)) {  in get_if_handler()
105 				ndev = vif->ndev;  in get_if_handler()
108 		if (vif->mode == WILC_AP_MODE)  in get_if_handler()
109 			if (ether_addr_equal_unaligned(h->addr1, vif->bssid)) {  in get_if_handler()
110 				ndev = vif->ndev;  in get_if_handler()
123 		ether_addr_copy(vif->bssid, bssid);  in wilc_wlan_set_bssid()
125 		eth_zero_addr(vif->bssid);  in wilc_wlan_set_bssid()
127 	vif->mode = mode;  in wilc_wlan_set_bssid()
136 	srcu_idx = srcu_read_lock(&wilc->srcu);  in wilc_wlan_get_num_conn_ifcs()
137 	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {  in wilc_wlan_get_num_conn_ifcs()
138 		if (!is_zero_ether_addr(vif->bssid))  in wilc_wlan_get_num_conn_ifcs()
141 	srcu_read_unlock(&wilc->srcu, srcu_idx);  in wilc_wlan_get_num_conn_ifcs()
151 	complete(&wl->txq_thread_started);  in wilc_txq_task()
153 		wait_for_completion(&wl->txq_event);  in wilc_txq_task()
155 		if (wl->close) {  in wilc_txq_task()
156 			complete(&wl->txq_thread_started);  in wilc_txq_task()
168 				srcu_idx = srcu_read_lock(&wl->srcu);  in wilc_txq_task()
169 				list_for_each_entry_rcu(ifc, &wl->vif_list,  in wilc_txq_task()
171 					if (ifc->mac_opened && ifc->ndev)  in wilc_txq_task()
172 						netif_wake_queue(ifc->ndev);  in wilc_txq_task()
174 				srcu_read_unlock(&wl->srcu, srcu_idx);  in wilc_txq_task()
176 		} while (ret == WILC_VMM_ENTRY_FULL_RETRY && !wl->close);  in wilc_txq_task()
184 	struct wilc *wilc = vif->wilc;  in wilc_wlan_get_firmware()
186 	const struct firmware *wilc_fw;  in wilc_wlan_get_firmware()
191 	netdev_info(dev, "ChipID [%x] loading firmware [%s]\n", chip_id,  in wilc_wlan_get_firmware()
195 			       wilc->dev);  in wilc_wlan_get_firmware()
197 		netdev_err(dev, "%s - firmware not available\n",  in wilc_wlan_get_firmware()
199 		return -EINVAL;  in wilc_wlan_get_firmware()
201 	wilc->firmware = wilc_fw;  in wilc_wlan_get_firmware()
209 	struct wilc *wilc = vif->wilc;  in wilc_start_firmware()
216 	if (!wait_for_completion_timeout(&wilc->sync_event,  in wilc_start_firmware()
218 		return -ETIME;  in wilc_start_firmware()
226 	struct wilc *wilc = vif->wilc;  in wilc1000_firmware_download()
229 	if (!wilc->firmware) {  in wilc1000_firmware_download()
230 		netdev_err(dev, "Firmware buffer is NULL\n");  in wilc1000_firmware_download()
231 		return -ENOBUFS;  in wilc1000_firmware_download()
234 	ret = wilc_wlan_firmware_download(wilc, wilc->firmware->data,  in wilc1000_firmware_download()
235 					  wilc->firmware->size);  in wilc1000_firmware_download()
239 	release_firmware(wilc->firmware);  in wilc1000_firmware_download()
240 	wilc->firmware = NULL;  in wilc1000_firmware_download()
249 	struct wilc_priv *priv = &vif->priv;  in wilc_init_fw_config()
255 	netdev_dbg(dev, "Start configuring Firmware\n");  in wilc_init_fw_config()
256 	hif_drv = (struct host_if_drv *)priv->hif_drv;  in wilc_init_fw_config()
259 	w = vif->iftype;  in wilc_init_fw_config()
415 	return -EINVAL;  in wilc_init_fw_config()
421 	struct wilc *wl = vif->wilc;  in wlan_deinitialize_threads()
423 	wl->close = 1;  in wlan_deinitialize_threads()
425 	complete(&wl->txq_event);  in wlan_deinitialize_threads()
427 	if (wl->txq_thread) {  in wlan_deinitialize_threads()
428 		kthread_stop(wl->txq_thread);  in wlan_deinitialize_threads()
429 		wl->txq_thread = NULL;  in wlan_deinitialize_threads()
436 	struct wilc *wl = vif->wilc;  in wilc_wlan_deinitialize()
443 	if (wl->initialized) {  in wilc_wlan_deinitialize()
446 		if (!wl->dev_irq_num &&  in wilc_wlan_deinitialize()
447 		    wl->hif_func->disable_interrupt) {  in wilc_wlan_deinitialize()
448 			mutex_lock(&wl->hif_cs);  in wilc_wlan_deinitialize()
449 			wl->hif_func->disable_interrupt(wl);  in wilc_wlan_deinitialize()
450 			mutex_unlock(&wl->hif_cs);  in wilc_wlan_deinitialize()
452 		complete(&wl->txq_event);  in wilc_wlan_deinitialize()
460 		wl->initialized = false;  in wilc_wlan_deinitialize()
464 		netdev_dbg(dev, "wilc1000 is not initialized\n");  in wilc_wlan_deinitialize()
471 	struct wilc *wilc = vif->wilc;  in wlan_initialize_threads()
473 	wilc->txq_thread = kthread_run(wilc_txq_task, (void *)wilc,  in wlan_initialize_threads()
475 	if (IS_ERR(wilc->txq_thread)) {  in wlan_initialize_threads()
477 		wilc->close = 0;  in wlan_initialize_threads()
478 		return PTR_ERR(wilc->txq_thread);  in wlan_initialize_threads()
480 	wait_for_completion(&wilc->txq_thread_started);  in wlan_initialize_threads()
488 	struct wilc *wl = vif->wilc;  in wilc_wlan_initialize()
490 	if (!wl->initialized) {  in wilc_wlan_initialize()
491 		wl->mac_status = WILC_MAC_STATUS_INIT;  in wilc_wlan_initialize()
492 		wl->close = 0;  in wilc_wlan_initialize()
502 		if (wl->dev_irq_num && init_irq(dev)) {  in wilc_wlan_initialize()
503 			ret = -EIO;  in wilc_wlan_initialize()
507 		if (!wl->dev_irq_num &&  in wilc_wlan_initialize()
508 		    wl->hif_func->enable_interrupt &&  in wilc_wlan_initialize()
509 		    wl->hif_func->enable_interrupt(wl)) {  in wilc_wlan_initialize()
510 			ret = -EIO;  in wilc_wlan_initialize()
534 			netdev_dbg(dev, "Firmware Ver = %s\n", firmware_ver);  in wilc_wlan_initialize()
539 			netdev_err(dev, "Failed to configure firmware\n");  in wilc_wlan_initialize()
542 		wl->initialized = true;  in wilc_wlan_initialize()
549 		if (!wl->dev_irq_num &&  in wilc_wlan_initialize()
550 		    wl->hif_func->disable_interrupt)  in wilc_wlan_initialize()
551 			wl->hif_func->disable_interrupt(wl);  in wilc_wlan_initialize()
553 		if (wl->dev_irq_num)  in wilc_wlan_initialize()
561 		netdev_dbg(dev, "wilc1000 already initialized\n");  in wilc_wlan_initialize()
577 	struct wilc *wl = vif->wilc;  in wilc_mac_open()
582 	if (!wl || !wl->dev) {  in wilc_mac_open()
584 		return -ENODEV;  in wilc_mac_open()
599 	wilc_set_operation_mode(vif, wilc_get_vif_idx(vif), vif->iftype,  in wilc_mac_open()
600 				vif->idx);  in wilc_mac_open()
603 	ether_addr_copy(ndev->dev_addr, mac_add);  in wilc_mac_open()
605 	if (!is_valid_ether_addr(ndev->dev_addr)) {  in wilc_mac_open()
609 		return -EINVAL;  in wilc_mac_open()
612 	mgmt_regs.interface_stypes = vif->mgmt_reg_stypes;  in wilc_mac_open()
614 	vif->mgmt_reg_stypes = 0;  in wilc_mac_open()
615 	wilc_update_mgmt_frame_registrations(vif->ndev->ieee80211_ptr->wiphy,  in wilc_mac_open()
616 					     vif->ndev->ieee80211_ptr,  in wilc_mac_open()
619 	wl->open_ifcs++;  in wilc_mac_open()
620 	vif->mac_opened = 1;  in wilc_mac_open()
628 	return &vif->netstats;  in mac_stats()
639 	if (dev->flags & IFF_PROMISC)  in wilc_set_multicast_list()
642 	if (dev->flags & IFF_ALLMULTI ||  in wilc_set_multicast_list()
643 	    dev->mc.count > WILC_MULTICAST_TABLE_SIZE) {  in wilc_set_multicast_list()
648 	if (dev->mc.count == 0) {  in wilc_set_multicast_list()
653 	mc_list = kmalloc_array(dev->mc.count, ETH_ALEN, GFP_ATOMIC);  in wilc_set_multicast_list()
660 		memcpy(cur_mc, ha->addr, ETH_ALEN);  in wilc_set_multicast_list()
666 	if (wilc_setup_multicast_filter(vif, 1, dev->mc.count, mc_list))  in wilc_set_multicast_list()
674 	dev_kfree_skb(pv_data->skb);  in wilc_tx_complete()
681 	struct wilc *wilc = vif->wilc;  in wilc_mac_xmit()
685 	if (skb->dev != ndev) {  in wilc_mac_xmit()
697 	tx_data->buff = skb->data;  in wilc_mac_xmit()
698 	tx_data->size = skb->len;  in wilc_mac_xmit()
699 	tx_data->skb  = skb;  in wilc_mac_xmit()
701 	vif->netstats.tx_packets++;  in wilc_mac_xmit()
702 	vif->netstats.tx_bytes += tx_data->size;  in wilc_mac_xmit()
704 						tx_data->buff, tx_data->size,  in wilc_mac_xmit()
711 		srcu_idx = srcu_read_lock(&wilc->srcu);  in wilc_mac_xmit()
712 		list_for_each_entry_rcu(vif, &wilc->vif_list, list) {  in wilc_mac_xmit()
713 			if (vif->mac_opened)  in wilc_mac_xmit()
714 				netif_stop_queue(vif->ndev);  in wilc_mac_xmit()
716 		srcu_read_unlock(&wilc->srcu, srcu_idx);  in wilc_mac_xmit()
725 	struct wilc *wl = vif->wilc;  in wilc_mac_close()
729 	if (wl->open_ifcs > 0)  in wilc_mac_close()
730 		wl->open_ifcs--;  in wilc_mac_close()
734 	if (vif->ndev) {  in wilc_mac_close()
735 		netif_stop_queue(vif->ndev);  in wilc_mac_close()
737 		wilc_deinit_host_int(vif->ndev);  in wilc_mac_close()
740 	if (wl->open_ifcs == 0) {  in wilc_mac_close()
742 		wl->close = 1;  in wilc_mac_close()
746 	vif->mac_opened = 0;  in wilc_mac_close()
779 		skb->dev = wilc_netdev;  in wilc_frmw_to_host()
783 		skb->protocol = eth_type_trans(skb, wilc_netdev);  in wilc_frmw_to_host()
784 		vif->netstats.rx_packets++;  in wilc_frmw_to_host()
785 		vif->netstats.rx_bytes += frame_len;  in wilc_frmw_to_host()
786 		skb->ip_summed = CHECKSUM_UNNECESSARY;  in wilc_frmw_to_host()
797 	srcu_idx = srcu_read_lock(&wilc->srcu);  in wilc_wfi_mgmt_rx()
798 	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {  in wilc_wfi_mgmt_rx()
802 		if (vif->priv.p2p_listen_state &&  in wilc_wfi_mgmt_rx()
803 		    vif->mgmt_reg_stypes & type_bit)  in wilc_wfi_mgmt_rx()
806 		if (vif->monitor_flag)  in wilc_wfi_mgmt_rx()
807 			wilc_wfi_monitor_rx(wilc->monitor_dev, buff, size);  in wilc_wfi_mgmt_rx()
809 	srcu_read_unlock(&wilc->srcu, srcu_idx);  in wilc_wfi_mgmt_rx()
829 	if (wilc->firmware) {  in wilc_netdev_cleanup()
830 		release_firmware(wilc->firmware);  in wilc_netdev_cleanup()
831 		wilc->firmware = NULL;  in wilc_netdev_cleanup()
834 	srcu_idx = srcu_read_lock(&wilc->srcu);  in wilc_netdev_cleanup()
835 	list_for_each_entry_rcu(vif, &wilc->vif_list, list) {  in wilc_netdev_cleanup()
836 		if (vif->ndev)  in wilc_netdev_cleanup()
837 			unregister_netdev(vif->ndev);  in wilc_netdev_cleanup()
839 	srcu_read_unlock(&wilc->srcu, srcu_idx);  in wilc_netdev_cleanup()
842 	flush_workqueue(wilc->hif_workqueue);  in wilc_netdev_cleanup()
843 	destroy_workqueue(wilc->hif_workqueue);  in wilc_netdev_cleanup()
846 		mutex_lock(&wilc->vif_mutex);  in wilc_netdev_cleanup()
847 		if (wilc->vif_num <= 0) {  in wilc_netdev_cleanup()
848 			mutex_unlock(&wilc->vif_mutex);  in wilc_netdev_cleanup()
853 			list_del_rcu(&vif->list);  in wilc_netdev_cleanup()
855 		wilc->vif_num--;  in wilc_netdev_cleanup()
856 		mutex_unlock(&wilc->vif_mutex);  in wilc_netdev_cleanup()
857 		synchronize_srcu(&wilc->srcu);  in wilc_netdev_cleanup()
863 	kfree(wilc->bus_data);  in wilc_netdev_cleanup()
864 	wiphy_unregister(wilc->wiphy);  in wilc_netdev_cleanup()
865 	wiphy_free(wilc->wiphy);  in wilc_netdev_cleanup()
875 	srcu_idx = srcu_read_lock(&wl->srcu);  in wilc_get_available_idx()
876 	list_for_each_entry_rcu(vif, &wl->vif_list, list) {  in wilc_get_available_idx()
877 		if (vif->idx == 0)  in wilc_get_available_idx()
882 	srcu_read_unlock(&wl->srcu, srcu_idx);  in wilc_get_available_idx()
896 		return ERR_PTR(-ENOMEM);  in wilc_netdev_ifc_init()
899 	ndev->ieee80211_ptr = &vif->priv.wdev;  in wilc_netdev_ifc_init()
900 	strcpy(ndev->name, name);  in wilc_netdev_ifc_init()
901 	vif->wilc = wl;  in wilc_netdev_ifc_init()
902 	vif->ndev = ndev;  in wilc_netdev_ifc_init()
903 	ndev->ml_priv = vif;  in wilc_netdev_ifc_init()
905 	ndev->netdev_ops = &wilc_netdev_ops;  in wilc_netdev_ifc_init()
907 	SET_NETDEV_DEV(ndev, wiphy_dev(wl->wiphy));  in wilc_netdev_ifc_init()
909 	vif->priv.wdev.wiphy = wl->wiphy;  in wilc_netdev_ifc_init()
910 	vif->priv.wdev.netdev = ndev;  in wilc_netdev_ifc_init()
911 	vif->priv.wdev.iftype = type;  in wilc_netdev_ifc_init()
912 	vif->priv.dev = ndev;  in wilc_netdev_ifc_init()
921 		return ERR_PTR(-EFAULT);  in wilc_netdev_ifc_init()
924 	ndev->needs_free_netdev = true;  in wilc_netdev_ifc_init()
925 	vif->iftype = vif_type;  in wilc_netdev_ifc_init()
926 	vif->idx = wilc_get_available_idx(wl);  in wilc_netdev_ifc_init()
927 	vif->mac_opened = 0;  in wilc_netdev_ifc_init()
928 	mutex_lock(&wl->vif_mutex);  in wilc_netdev_ifc_init()
929 	list_add_tail_rcu(&vif->list, &wl->vif_list);  in wilc_netdev_ifc_init()
930 	wl->vif_num += 1;  in wilc_netdev_ifc_init()
931 	mutex_unlock(&wl->vif_mutex);  in wilc_netdev_ifc_init()
932 	synchronize_srcu(&wl->srcu);  in wilc_netdev_ifc_init()