wilc1000: move wilc driver out of staging

WILC1000 is an IEEE 802.11 b/g/n IoT link controller module. The
WILC1000 connects to Microchip AVR/SMART MCUs, SMART MPUs, and other
processors with minimal resource requirements with a simple
SPI/SDIO-to-Wi-Fi interface.

WILC1000 driver has been part of staging for few years. With
contributions from the community, it has improved significantly. Full
driver review has helped in achieving the current state.
The details for those reviews are captured in 1 & 2.

[1]. https://lore.kernel.org/linux-wireless/1537957525-11467-1-git-send-email-ajay.kathat@microchip.com/
[2]. https://lore.kernel.org/linux-wireless/1562896697-8002-1-git-send-email-ajay.kathat@microchip.com/

Signed-off-by: Ajay Singh <ajay.kathat@microchip.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 0 insertions, 260 deletions

diff --git a/drivers/staging/wilc1000/mon.c b/drivers/staging/wilc1000/mon.c
deleted file mode 100644
index 60331417bd98..000000000000
--- a/drivers/staging/wilc1000/mon.c
+++ /dev/null
@@ -1,260 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (c) 2012 - 2018 Microchip Technology Inc., and its subsidiaries.
- * All rights reserved.
- */
-
-#include "cfg80211.h"
-
-struct wilc_wfi_radiotap_hdr {
-	struct ieee80211_radiotap_header hdr;
-	u8 rate;
-} __packed;
-
-struct wilc_wfi_radiotap_cb_hdr {
-	struct ieee80211_radiotap_header hdr;
-	u8 rate;
-	u8 dump;
-	u16 tx_flags;
-} __packed;
-
-#define TX_RADIOTAP_PRESENT ((1 << IEEE80211_RADIOTAP_RATE) |	\
-			     (1 << IEEE80211_RADIOTAP_TX_FLAGS))
-
-void wilc_wfi_monitor_rx(struct net_device *mon_dev, u8 *buff, u32 size)
-{
-	u32 header, pkt_offset;
-	struct sk_buff *skb = NULL;
-	struct wilc_wfi_radiotap_hdr *hdr;
-	struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
-
-	if (!mon_dev)
-		return;
-
-	if (!netif_running(mon_dev))
-		return;
-
-	/* Get WILC header */
-	header = get_unaligned_le32(buff - HOST_HDR_OFFSET);
-	/*
-	 * The packet offset field contain info about what type of management
-	 * the frame we are dealing with and ack status
-	 */
-	pkt_offset = FIELD_GET(WILC_PKT_HDR_OFFSET_FIELD, header);
-
-	if (pkt_offset & IS_MANAGMEMENT_CALLBACK) {
-		/* hostapd callback mgmt frame */
-
-		skb = dev_alloc_skb(size + sizeof(*cb_hdr));
-		if (!skb)
-			return;
-
-		skb_put_data(skb, buff, size);
-
-		cb_hdr = skb_push(skb, sizeof(*cb_hdr));
-		memset(cb_hdr, 0, sizeof(*cb_hdr));
-
-		cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
-
-		cb_hdr->hdr.it_len = cpu_to_le16(sizeof(*cb_hdr));
-
-		cb_hdr->hdr.it_present = cpu_to_le32(TX_RADIOTAP_PRESENT);
-
-		cb_hdr->rate = 5;
-
-		if (pkt_offset & IS_MGMT_STATUS_SUCCES)	{
-			/* success */
-			cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_RTS;
-		} else {
-			cb_hdr->tx_flags = IEEE80211_RADIOTAP_F_TX_FAIL;
-		}
-
-	} else {
-		skb = dev_alloc_skb(size + sizeof(*hdr));
-
-		if (!skb)
-			return;
-
-		skb_put_data(skb, buff, size);
-		hdr = skb_push(skb, sizeof(*hdr));
-		memset(hdr, 0, sizeof(struct wilc_wfi_radiotap_hdr));
-		hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
-		hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
-		hdr->hdr.it_present = cpu_to_le32
-				(1 << IEEE80211_RADIOTAP_RATE);
-		hdr->rate = 5;
-	}
-
-	skb->dev = mon_dev;
-	skb_reset_mac_header(skb);
-	skb->ip_summed = CHECKSUM_UNNECESSARY;
-	skb->pkt_type = PACKET_OTHERHOST;
-	skb->protocol = htons(ETH_P_802_2);
-	memset(skb->cb, 0, sizeof(skb->cb));
-
-	netif_rx(skb);
-}
-
-struct tx_complete_mon_data {
-	int size;
-	void *buff;
-};
-
-static void mgmt_tx_complete(void *priv, int status)
-{
-	struct tx_complete_mon_data *pv_data = priv;
-	/*
-	 * in case of fully hosting mode, the freeing will be done
-	 * in response to the cfg packet
-	 */
-	kfree(pv_data->buff);
-
-	kfree(pv_data);
-}
-
-static int mon_mgmt_tx(struct net_device *dev, const u8 *buf, size_t len)
-{
-	struct tx_complete_mon_data *mgmt_tx = NULL;
-
-	if (!dev)
-		return -EFAULT;
-
-	netif_stop_queue(dev);
-	mgmt_tx = kmalloc(sizeof(*mgmt_tx), GFP_ATOMIC);
-	if (!mgmt_tx)
-		return -ENOMEM;
-
-	mgmt_tx->buff = kmemdup(buf, len, GFP_ATOMIC);
-	if (!mgmt_tx->buff) {
-		kfree(mgmt_tx);
-		return -ENOMEM;
-	}
-
-	mgmt_tx->size = len;
-
-	wilc_wlan_txq_add_mgmt_pkt(dev, mgmt_tx, mgmt_tx->buff, mgmt_tx->size,
-				   mgmt_tx_complete);
-
-	netif_wake_queue(dev);
-	return 0;
-}
-
-static netdev_tx_t wilc_wfi_mon_xmit(struct sk_buff *skb,
-				     struct net_device *dev)
-{
-	u32 rtap_len, ret = 0;
-	struct wilc_wfi_mon_priv  *mon_priv;
-	struct sk_buff *skb2;
-	struct wilc_wfi_radiotap_cb_hdr *cb_hdr;
-	u8 srcadd[ETH_ALEN];
-	u8 bssid[ETH_ALEN];
-
-	mon_priv = netdev_priv(dev);
-	if (!mon_priv)
-		return -EFAULT;
-
-	rtap_len = ieee80211_get_radiotap_len(skb->data);
-	if (skb->len < rtap_len)
-		return -1;
-
-	skb_pull(skb, rtap_len);
-
-	if (skb->data[0] == 0xc0 && is_broadcast_ether_addr(&skb->data[4])) {
-		skb2 = dev_alloc_skb(skb->len + sizeof(*cb_hdr));
-		if (!skb2)
-			return -ENOMEM;
-
-		skb_put_data(skb2, skb->data, skb->len);
-
-		cb_hdr = skb_push(skb2, sizeof(*cb_hdr));
-		memset(cb_hdr, 0, sizeof(struct wilc_wfi_radiotap_cb_hdr));
-
-		cb_hdr->hdr.it_version = 0; /* PKTHDR_RADIOTAP_VERSION; */
-
-		cb_hdr->hdr.it_len = cpu_to_le16(sizeof(*cb_hdr));
-
-		cb_hdr->hdr.it_present = cpu_to_le32(TX_RADIOTAP_PRESENT);
-
-		cb_hdr->rate = 5;
-		cb_hdr->tx_flags = 0x0004;
-
-		skb2->dev = dev;
-		skb_reset_mac_header(skb2);
-		skb2->ip_summed = CHECKSUM_UNNECESSARY;
-		skb2->pkt_type = PACKET_OTHERHOST;
-		skb2->protocol = htons(ETH_P_802_2);
-		memset(skb2->cb, 0, sizeof(skb2->cb));
-
-		netif_rx(skb2);
-
-		return 0;
-	}
-	skb->dev = mon_priv->real_ndev;
-
-	ether_addr_copy(srcadd, &skb->data[10]);
-	ether_addr_copy(bssid, &skb->data[16]);
-	/*
-	 * Identify if data or mgmt packet, if source address and bssid
-	 * fields are equal send it to mgmt frames handler
-	 */
-	if (!(memcmp(srcadd, bssid, 6))) {
-		ret = mon_mgmt_tx(mon_priv->real_ndev, skb->data, skb->len);
-		if (ret)
-			netdev_err(dev, "fail to mgmt tx\n");
-		dev_kfree_skb(skb);
-	} else {
-		ret = wilc_mac_xmit(skb, mon_priv->real_ndev);
-	}
-
-	return ret;
-}
-
-static const struct net_device_ops wilc_wfi_netdev_ops = {
-	.ndo_start_xmit         = wilc_wfi_mon_xmit,
-
-};
-
-struct net_device *wilc_wfi_init_mon_interface(struct wilc *wl,
-					       const char *name,
-					       struct net_device *real_dev)
-{
-	struct wilc_wfi_mon_priv *priv;
-
-	/* If monitor interface is already initialized, return it */
-	if (wl->monitor_dev)
-		return wl->monitor_dev;
-
-	wl->monitor_dev = alloc_etherdev(sizeof(struct wilc_wfi_mon_priv));
-	if (!wl->monitor_dev)
-		return NULL;
-
-	wl->monitor_dev->type = ARPHRD_IEEE80211_RADIOTAP;
-	strncpy(wl->monitor_dev->name, name, IFNAMSIZ);
-	wl->monitor_dev->name[IFNAMSIZ - 1] = 0;
-	wl->monitor_dev->netdev_ops = &wilc_wfi_netdev_ops;
-	wl->monitor_dev->needs_free_netdev = true;
-
-	if (register_netdevice(wl->monitor_dev)) {
-		netdev_err(real_dev, "register_netdevice failed\n");
-		return NULL;
-	}
-	priv = netdev_priv(wl->monitor_dev);
-	if (!priv)
-		return NULL;
-
-	priv->real_ndev = real_dev;
-
-	return wl->monitor_dev;
-}
-
-void wilc_wfi_deinit_mon_interface(struct wilc *wl, bool rtnl_locked)
-{
-	if (!wl->monitor_dev)
-		return;
-
-	if (rtnl_locked)
-		unregister_netdevice(wl->monitor_dev);
-	else
-		unregister_netdev(wl->monitor_dev);
-	wl->monitor_dev = NULL;
-}