Linux-libre 4.5-gnu

1 files changed, 0 insertions, 286 deletions

diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
deleted file mode 100644
index e446fed7b..000000000
--- a/drivers/net/wireless/libertas/rx.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- * This file contains the handling of RX in wlan driver.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/etherdevice.h>
-#include <linux/hardirq.h>
-#include <linux/slab.h>
-#include <linux/types.h>
-#include <linux/export.h>
-#include <net/cfg80211.h>
-
-#include "defs.h"
-#include "host.h"
-#include "radiotap.h"
-#include "decl.h"
-#include "dev.h"
-#include "mesh.h"
-
-struct eth803hdr {
-	u8 dest_addr[6];
-	u8 src_addr[6];
-	u16 h803_len;
-} __packed;
-
-struct rfc1042hdr {
-	u8 llc_dsap;
-	u8 llc_ssap;
-	u8 llc_ctrl;
-	u8 snap_oui[3];
-	u16 snap_type;
-} __packed;
-
-struct rxpackethdr {
-	struct eth803hdr eth803_hdr;
-	struct rfc1042hdr rfc1042_hdr;
-} __packed;
-
-struct rx80211packethdr {
-	struct rxpd rx_pd;
-	void *eth80211_hdr;
-} __packed;
-
-static int process_rxed_802_11_packet(struct lbs_private *priv,
-	struct sk_buff *skb);
-
-/**
- * lbs_process_rxed_packet - processes received packet and forwards it
- * to kernel/upper layer
- *
- * @priv:	A pointer to &struct lbs_private
- * @skb:	A pointer to skb which includes the received packet
- * returns:	0 or -1
- */
-int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
-{
-	int ret = 0;
-	struct net_device *dev = priv->dev;
-	struct rxpackethdr *p_rx_pkt;
-	struct rxpd *p_rx_pd;
-	int hdrchop;
-	struct ethhdr *p_ethhdr;
-	static const u8 rfc1042_eth_hdr[] = {
-		0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
-	};
-
-	lbs_deb_enter(LBS_DEB_RX);
-
-	BUG_ON(!skb);
-
-	skb->ip_summed = CHECKSUM_NONE;
-
-	if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR) {
-		ret = process_rxed_802_11_packet(priv, skb);
-		goto done;
-	}
-
-	p_rx_pd = (struct rxpd *) skb->data;
-	p_rx_pkt = (struct rxpackethdr *) ((u8 *)p_rx_pd +
-		le32_to_cpu(p_rx_pd->pkt_ptr));
-
-	dev = lbs_mesh_set_dev(priv, dev, p_rx_pd);
-
-	lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data,
-		 min_t(unsigned int, skb->len, 100));
-
-	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
-		lbs_deb_rx("rx err: frame received with bad length\n");
-		dev->stats.rx_length_errors++;
-		ret = -EINVAL;
-		dev_kfree_skb(skb);
-		goto done;
-	}
-
-	lbs_deb_rx("rx data: skb->len - pkt_ptr = %d-%zd = %zd\n",
-		skb->len, (size_t)le32_to_cpu(p_rx_pd->pkt_ptr),
-		skb->len - (size_t)le32_to_cpu(p_rx_pd->pkt_ptr));
-
-	lbs_deb_hex(LBS_DEB_RX, "RX Data: Dest", p_rx_pkt->eth803_hdr.dest_addr,
-		sizeof(p_rx_pkt->eth803_hdr.dest_addr));
-	lbs_deb_hex(LBS_DEB_RX, "RX Data: Src", p_rx_pkt->eth803_hdr.src_addr,
-		sizeof(p_rx_pkt->eth803_hdr.src_addr));
-
-	if (memcmp(&p_rx_pkt->rfc1042_hdr,
-		   rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) {
-		/*
-		 *  Replace the 803 header and rfc1042 header (llc/snap) with an
-		 *    EthernetII header, keep the src/dst and snap_type (ethertype)
-		 *
-		 *  The firmware only passes up SNAP frames converting
-		 *    all RX Data from 802.11 to 802.2/LLC/SNAP frames.
-		 *
-		 *  To create the Ethernet II, just move the src, dst address right
-		 *    before the snap_type.
-		 */
-		p_ethhdr = (struct ethhdr *)
-		    ((u8 *) &p_rx_pkt->eth803_hdr
-		     + sizeof(p_rx_pkt->eth803_hdr) + sizeof(p_rx_pkt->rfc1042_hdr)
-		     - sizeof(p_rx_pkt->eth803_hdr.dest_addr)
-		     - sizeof(p_rx_pkt->eth803_hdr.src_addr)
-		     - sizeof(p_rx_pkt->rfc1042_hdr.snap_type));
-
-		memcpy(p_ethhdr->h_source, p_rx_pkt->eth803_hdr.src_addr,
-		       sizeof(p_ethhdr->h_source));
-		memcpy(p_ethhdr->h_dest, p_rx_pkt->eth803_hdr.dest_addr,
-		       sizeof(p_ethhdr->h_dest));
-
-		/* Chop off the rxpd + the excess memory from the 802.2/llc/snap header
-		 *   that was removed
-		 */
-		hdrchop = (u8 *)p_ethhdr - (u8 *)p_rx_pd;
-	} else {
-		lbs_deb_hex(LBS_DEB_RX, "RX Data: LLC/SNAP",
-			(u8 *) &p_rx_pkt->rfc1042_hdr,
-			sizeof(p_rx_pkt->rfc1042_hdr));
-
-		/* Chop off the rxpd */
-		hdrchop = (u8 *)&p_rx_pkt->eth803_hdr - (u8 *)p_rx_pd;
-	}
-
-	/* Chop off the leading header bytes so the skb points to the start of
-	 *   either the reconstructed EthII frame or the 802.2/llc/snap frame
-	 */
-	skb_pull(skb, hdrchop);
-
-	priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
-
-	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
-	dev->stats.rx_bytes += skb->len;
-	dev->stats.rx_packets++;
-
-	skb->protocol = eth_type_trans(skb, dev);
-	if (in_interrupt())
-		netif_rx(skb);
-	else
-		netif_rx_ni(skb);
-
-	ret = 0;
-done:
-	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(lbs_process_rxed_packet);
-
-/**
- * convert_mv_rate_to_radiotap - converts Tx/Rx rates from Marvell WLAN format
- * (see Table 2 in Section 3.1) to IEEE80211_RADIOTAP_RATE units (500 Kb/s)
- *
- * @rate:	Input rate
- * returns:	Output Rate (0 if invalid)
- */
-static u8 convert_mv_rate_to_radiotap(u8 rate)
-{
-	switch (rate) {
-	case 0:		/*   1 Mbps */
-		return 2;
-	case 1:		/*   2 Mbps */
-		return 4;
-	case 2:		/* 5.5 Mbps */
-		return 11;
-	case 3:		/*  11 Mbps */
-		return 22;
-	/* case 4: reserved */
-	case 5:		/*   6 Mbps */
-		return 12;
-	case 6:		/*   9 Mbps */
-		return 18;
-	case 7:		/*  12 Mbps */
-		return 24;
-	case 8:		/*  18 Mbps */
-		return 36;
-	case 9:		/*  24 Mbps */
-		return 48;
-	case 10:		/*  36 Mbps */
-		return 72;
-	case 11:		/*  48 Mbps */
-		return 96;
-	case 12:		/*  54 Mbps */
-		return 108;
-	}
-	pr_alert("Invalid Marvell WLAN rate %i\n", rate);
-	return 0;
-}
-
-/**
- * process_rxed_802_11_packet - processes a received 802.11 packet and forwards
- * it to kernel/upper layer
- *
- * @priv:	A pointer to &struct lbs_private
- * @skb:	A pointer to skb which includes the received packet
- * returns:	0 or -1
- */
-static int process_rxed_802_11_packet(struct lbs_private *priv,
-	struct sk_buff *skb)
-{
-	int ret = 0;
-	struct net_device *dev = priv->dev;
-	struct rx80211packethdr *p_rx_pkt;
-	struct rxpd *prxpd;
-	struct rx_radiotap_hdr radiotap_hdr;
-	struct rx_radiotap_hdr *pradiotap_hdr;
-
-	lbs_deb_enter(LBS_DEB_RX);
-
-	p_rx_pkt = (struct rx80211packethdr *) skb->data;
-	prxpd = &p_rx_pkt->rx_pd;
-
-	/* lbs_deb_hex(LBS_DEB_RX, "RX Data: Before chop rxpd", skb->data, min(skb->len, 100)); */
-
-	if (skb->len < (ETH_HLEN + 8 + sizeof(struct rxpd))) {
-		lbs_deb_rx("rx err: frame received with bad length\n");
-		dev->stats.rx_length_errors++;
-		ret = -EINVAL;
-		kfree_skb(skb);
-		goto done;
-	}
-
-	lbs_deb_rx("rx data: skb->len-sizeof(RxPd) = %d-%zd = %zd\n",
-	       skb->len, sizeof(struct rxpd), skb->len - sizeof(struct rxpd));
-
-	/* create the exported radio header */
-
-	/* radiotap header */
-	memset(&radiotap_hdr, 0, sizeof(radiotap_hdr));
-	/* XXX must check radiotap_hdr.hdr.it_pad for pad */
-	radiotap_hdr.hdr.it_len = cpu_to_le16 (sizeof(struct rx_radiotap_hdr));
-	radiotap_hdr.hdr.it_present = cpu_to_le32 (RX_RADIOTAP_PRESENT);
-	radiotap_hdr.rate = convert_mv_rate_to_radiotap(prxpd->rx_rate);
-	/* XXX must check no carryout */
-	radiotap_hdr.antsignal = prxpd->snr + prxpd->nf;
-
-	/* chop the rxpd */
-	skb_pull(skb, sizeof(struct rxpd));
-
-	/* add space for the new radio header */
-	if ((skb_headroom(skb) < sizeof(struct rx_radiotap_hdr)) &&
-	    pskb_expand_head(skb, sizeof(struct rx_radiotap_hdr), 0, GFP_ATOMIC)) {
-		netdev_alert(dev, "%s: couldn't pskb_expand_head\n", __func__);
-		ret = -ENOMEM;
-		kfree_skb(skb);
-		goto done;
-	}
-
-	pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));
-	memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));
-
-	priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
-
-	lbs_deb_rx("rx data: size of actual packet %d\n", skb->len);
-	dev->stats.rx_bytes += skb->len;
-	dev->stats.rx_packets++;
-
-	skb->protocol = eth_type_trans(skb, priv->dev);
-
-	if (in_interrupt())
-		netif_rx(skb);
-	else
-		netif_rx_ni(skb);
-
-	ret = 0;
-
-done:
-	lbs_deb_leave_args(LBS_DEB_RX, "ret %d", ret);
-	return ret;
-}