diff options
Diffstat (limited to 'drivers/net/wireless/libertas/rx.c')
| -rw-r--r-- | drivers/net/wireless/libertas/rx.c | 121 |
1 files changed, 11 insertions, 110 deletions
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c index 7a377f5b7662..2163df01caed 100644 --- a/drivers/net/wireless/libertas/rx.c +++ b/drivers/net/wireless/libertas/rx.c @@ -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]; @@ -39,98 +40,6 @@ 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; |