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Libertas: cfg80211 support

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Holger Schurig's patch (https://patchwork.kernel.org/patch/64286/)
is rebased to latest wireless-testing tree.

(Includes patches from me originally posted as "libertas: fix build
error due to undefined symbol" and "libertas: unmangle capability
value". -- JWL)

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Kiran Divekar <dkiran@marvell.com>
Tested-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Kiran Divekar
2010-06-14 22:01:26 +05:30
committed by John W. Linville
parent f90754c15f
commit e86dc1ca46
20 changed files with 1981 additions and 6722 deletions
Download Patch File Download Diff File Expand all files Collapse all files

121
drivers/net/wireless/libertas/rx.c
View File

@@ -4,12 +4,13 @@
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <net/cfg80211.h>
#include "defs.h"
#include "host.h"
#include "radiotap.h"
#include "decl.h"
#include "dev.h"
#include "wext.h"
struct eth803hdr {
u8 dest_addr[6];
@@ -38,98 +39,6 @@ struct rx80211packethdr {
static int process_rxed_802_11_packet(struct lbs_private *priv,
struct sk_buff *skb);
/**
* @brief This function computes the avgSNR .
*
* @param priv A pointer to struct lbs_private structure
* @return avgSNR
*/
static u8 lbs_getavgsnr(struct lbs_private *priv)
{
u8 i;
u16 temp = 0;
if (priv->numSNRNF == 0)
return 0;
for (i = 0; i < priv->numSNRNF; i++)
temp += priv->rawSNR[i];
return (u8) (temp / priv->numSNRNF);
}
/**
* @brief This function computes the AvgNF
*
* @param priv A pointer to struct lbs_private structure
* @return AvgNF
*/
static u8 lbs_getavgnf(struct lbs_private *priv)
{
u8 i;
u16 temp = 0;
if (priv->numSNRNF == 0)
return 0;
for (i = 0; i < priv->numSNRNF; i++)
temp += priv->rawNF[i];
return (u8) (temp / priv->numSNRNF);
}
/**
* @brief This function save the raw SNR/NF to our internel buffer
*
* @param priv A pointer to struct lbs_private structure
* @param prxpd A pointer to rxpd structure of received packet
* @return n/a
*/
static void lbs_save_rawSNRNF(struct lbs_private *priv, struct rxpd *p_rx_pd)
{
if (priv->numSNRNF < DEFAULT_DATA_AVG_FACTOR)
priv->numSNRNF++;
priv->rawSNR[priv->nextSNRNF] = p_rx_pd->snr;
priv->rawNF[priv->nextSNRNF] = p_rx_pd->nf;
priv->nextSNRNF++;
if (priv->nextSNRNF >= DEFAULT_DATA_AVG_FACTOR)
priv->nextSNRNF = 0;
}
/**
* @brief This function computes the RSSI in received packet.
*
* @param priv A pointer to struct lbs_private structure
* @param prxpd A pointer to rxpd structure of received packet
* @return n/a
*/
static void lbs_compute_rssi(struct lbs_private *priv, struct rxpd *p_rx_pd)
{
lbs_deb_enter(LBS_DEB_RX);
lbs_deb_rx("rxpd: SNR %d, NF %d\n", p_rx_pd->snr, p_rx_pd->nf);
lbs_deb_rx("before computing SNR: SNR-avg = %d, NF-avg = %d\n",
priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
priv->SNR[TYPE_RXPD][TYPE_NOAVG] = p_rx_pd->snr;
priv->NF[TYPE_RXPD][TYPE_NOAVG] = p_rx_pd->nf;
lbs_save_rawSNRNF(priv, p_rx_pd);
priv->SNR[TYPE_RXPD][TYPE_AVG] = lbs_getavgsnr(priv) * AVG_SCALE;
priv->NF[TYPE_RXPD][TYPE_AVG] = lbs_getavgnf(priv) * AVG_SCALE;
lbs_deb_rx("after computing SNR: SNR-avg = %d, NF-avg = %d\n",
priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
priv->RSSI[TYPE_RXPD][TYPE_NOAVG] =
CAL_RSSI(priv->SNR[TYPE_RXPD][TYPE_NOAVG],
priv->NF[TYPE_RXPD][TYPE_NOAVG]);
priv->RSSI[TYPE_RXPD][TYPE_AVG] =
CAL_RSSI(priv->SNR[TYPE_RXPD][TYPE_AVG] / AVG_SCALE,
priv->NF[TYPE_RXPD][TYPE_AVG] / AVG_SCALE);
lbs_deb_leave(LBS_DEB_RX);
}
/**
* @brief This function processes received packet and forwards it
* to kernel/upper layer
@@ -154,7 +63,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
skb->ip_summed = CHECKSUM_NONE;
if (priv->monitormode)
if (priv->wdev->iftype == NL80211_IFTYPE_MONITOR)
return process_rxed_802_11_packet(priv, skb);
p_rx_pd = (struct rxpd *) skb->data;
@@ -225,13 +134,7 @@ int lbs_process_rxed_packet(struct lbs_private *priv, struct sk_buff *skb)
*/
skb_pull(skb, hdrchop);
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (priv->enablehwauto)
priv->cur_rate = lbs_fw_index_to_data_rate(p_rx_pd->rx_rate);
lbs_compute_rssi(priv, p_rx_pd);
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;
@@ -352,20 +255,18 @@ static int process_rxed_802_11_packet(struct lbs_private *priv,
pradiotap_hdr = (void *)skb_push(skb, sizeof(struct rx_radiotap_hdr));
memcpy(pradiotap_hdr, &radiotap_hdr, sizeof(struct rx_radiotap_hdr));
/* Take the data rate from the rxpd structure
* only if the rate is auto
*/
if (priv->enablehwauto)
priv->cur_rate = lbs_fw_index_to_data_rate(prxpd->rx_rate);
lbs_compute_rssi(priv, prxpd);
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->rtap_net_dev);
netif_rx(skb);
skb->protocol = eth_type_trans(skb, priv->dev);
if (in_interrupt())
netif_rx(skb);
else
netif_rx_ni(skb);
ret = 0;