2008-09-06 00:52:58

by Christian Lamparter

[permalink] [raw]
Subject: [PATCH 2/3] p54: add more rx filters

This patch adds new filters settings to make the card more useful in monitor mode.

Signed-off-by: Christian Lamparter <[email protected]>
---
diff -Nurp a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c
--- a/drivers/net/wireless/p54/p54common.c 2008-09-05 21:02:22.000000000 +0200
+++ b/drivers/net/wireless/p54/p54common.c 2008-09-06 01:57:59.000000000 +0200
@@ -433,6 +433,13 @@ static int p54_rx_data(struct ieee80211_
size_t header_len = sizeof(*hdr);
u32 tsf32;

+ if (!(hdr->magic & cpu_to_le16(0x0001))) {
+ if (priv->filter_flags & FIF_FCSFAIL)
+ rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+ else
+ return 0;
+ }
+
rx_status.signal = hdr->rssi;
/* XX correct? */
rx_status.qual = (100 * hdr->rssi) / 127;
@@ -1127,13 +1134,26 @@ static void p54_configure_filter(struct
{
struct p54_common *priv = dev->priv;

- *total_flags &= FIF_BCN_PRBRESP_PROMISC;
+ *total_flags &= FIF_BCN_PRBRESP_PROMISC |
+ FIF_PROMISC_IN_BSS |
+ FIF_FCSFAIL;
+
+ priv->filter_flags = *total_flags;

if (changed_flags & FIF_BCN_PRBRESP_PROMISC) {
if (*total_flags & FIF_BCN_PRBRESP_PROMISC)
- p54_set_filter(dev, 0, NULL);
+ p54_set_filter(dev, priv->filter_type, NULL);
+ else
+ p54_set_filter(dev, priv->filter_type, priv->bssid);
+ }
+
+ if (changed_flags & FIF_PROMISC_IN_BSS) {
+ if (*total_flags & FIF_PROMISC_IN_BSS)
+ p54_set_filter(dev, priv->filter_type |
+ cpu_to_le16(0x8), NULL);
else
- p54_set_filter(dev, 0, priv->bssid);
+ p54_set_filter(dev, priv->filter_type &
+ ~cpu_to_le16(0x8), priv->bssid);
}
}

diff -Nurp a/drivers/net/wireless/p54/p54.h b/drivers/net/wireless/p54/p54.h
--- a/drivers/net/wireless/p54/p54.h 2008-09-04 14:43:07.000000000 +0200
+++ b/drivers/net/wireless/p54/p54.h 2008-09-04 14:56:25.000000000 +0200
@@ -80,6 +80,7 @@ struct p54_common {
struct pda_channel_output_limit *output_limit;
unsigned int output_limit_len;
struct pda_pa_curve_data *curve_data;
+ unsigned int filter_flags;
u16 rxhw;
u8 version;
u8 rx_antenna;