diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-3945.c | 120 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-3945.h | 36 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.c | 120 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965.h | 24 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl3945-base.c | 109 | ||||
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl4965-base.c | 90 |
6 files changed, 238 insertions, 261 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.c b/drivers/net/wireless/iwlwifi/iwl-3945.c index 7d15b33b9dc..a793cd11f73 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.c +++ b/drivers/net/wireless/iwlwifi/iwl-3945.c @@ -35,9 +35,9 @@ #include <linux/netdevice.h> #include <linux/wireless.h> #include <linux/firmware.h> -#include <net/mac80211.h> - #include <linux/etherdevice.h> +#include <asm/unaligned.h> +#include <net/mac80211.h> #include "iwl-3945.h" #include "iwl-helpers.h" @@ -238,10 +238,102 @@ void iwl3945_hw_rx_statistics(struct iwl3945_priv *priv, struct iwl3945_rx_mem_b priv->last_statistics_time = jiffies; } +void iwl3945_add_radiotap(struct iwl3945_priv *priv, struct sk_buff *skb, + struct iwl3945_rx_frame_hdr *rx_hdr, + struct ieee80211_rx_status *stats) +{ + /* First cache any information we need before we overwrite + * the information provided in the skb from the hardware */ + s8 signal = stats->ssi; + s8 noise = 0; + int rate = stats->rate; + u64 tsf = stats->mactime; + __le16 phy_flags_hw = rx_hdr->phy_flags; + + struct iwl3945_rt_rx_hdr { + struct ieee80211_radiotap_header rt_hdr; + __le64 rt_tsf; /* TSF */ + u8 rt_flags; /* radiotap packet flags */ + u8 rt_rate; /* rate in 500kb/s */ + __le16 rt_channelMHz; /* channel in MHz */ + __le16 rt_chbitmask; /* channel bitfield */ + s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ + s8 rt_dbmnoise; + u8 rt_antenna; /* antenna number */ + } __attribute__ ((packed)) *iwl3945_rt; + + if (skb_headroom(skb) < sizeof(*iwl3945_rt)) { + if (net_ratelimit()) + printk(KERN_ERR "not enough headroom [%d] for " + "radiotap head [%d]\n", + skb_headroom(skb), sizeof(*iwl3945_rt)); + return; + } + + /* put radiotap header in front of 802.11 header and data */ + iwl3945_rt = (void *)skb_push(skb, sizeof(*iwl3945_rt)); + + /* initialise radiotap header */ + iwl3945_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; + iwl3945_rt->rt_hdr.it_pad = 0; + + /* total header + data */ + put_unaligned(cpu_to_le16(sizeof(*iwl3945_rt)), + &iwl3945_rt->rt_hdr.it_len); + + /* Indicate all the fields we add to the radiotap header */ + put_unaligned(cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | + (1 << IEEE80211_RADIOTAP_RATE) | + (1 << IEEE80211_RADIOTAP_CHANNEL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | + (1 << IEEE80211_RADIOTAP_ANTENNA)), + &iwl3945_rt->rt_hdr.it_present); + + /* Zero the flags, we'll add to them as we go */ + iwl3945_rt->rt_flags = 0; + + put_unaligned(cpu_to_le64(tsf), &iwl3945_rt->rt_tsf); + + iwl3945_rt->rt_dbmsignal = signal; + iwl3945_rt->rt_dbmnoise = noise; + + /* Convert the channel frequency and set the flags */ + put_unaligned(cpu_to_le16(stats->freq), &iwl3945_rt->rt_channelMHz); + if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) + put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_5GHZ), + &iwl3945_rt->rt_chbitmask); + else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) + put_unaligned(cpu_to_le16(IEEE80211_CHAN_CCK | + IEEE80211_CHAN_2GHZ), + &iwl3945_rt->rt_chbitmask); + else /* 802.11g */ + put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_2GHZ), + &iwl3945_rt->rt_chbitmask); + + rate = iwl3945_rate_index_from_plcp(rate); + if (rate == -1) + iwl3945_rt->rt_rate = 0; + else + iwl3945_rt->rt_rate = iwl3945_rates[rate].ieee; + + /* antenna number */ + iwl3945_rt->rt_antenna = + le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; + + /* set the preamble flag if we have it */ + if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) + iwl3945_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; + + stats->flag |= RX_FLAG_RADIOTAP; +} + static void iwl3945_handle_data_packet(struct iwl3945_priv *priv, int is_data, struct iwl3945_rx_mem_buffer *rxb, - struct ieee80211_rx_status *stats, - u16 phy_flags) + struct ieee80211_rx_status *stats) { struct ieee80211_hdr *hdr; struct iwl3945_rx_packet *pkt = (struct iwl3945_rx_packet *)rxb->skb->data; @@ -261,15 +353,6 @@ static void iwl3945_handle_data_packet(struct iwl3945_priv *priv, int is_data, ("Dropping packet while interface is not open.\n"); return; } - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - if (iwl3945_param_hwcrypto) - iwl3945_set_decrypted_flag(priv, rxb->skb, - le32_to_cpu(rx_end->status), - stats); - iwl3945_handle_data_packet_monitor(priv, rxb, IWL_RX_DATA(pkt), - len, stats, phy_flags); - return; - } skb_reserve(rxb->skb, (void *)rx_hdr->payload - (void *)pkt); /* Set the size of the skb to the size of the frame */ @@ -281,6 +364,9 @@ static void iwl3945_handle_data_packet(struct iwl3945_priv *priv, int is_data, iwl3945_set_decrypted_flag(priv, rxb->skb, le32_to_cpu(rx_end->status), stats); + if (priv->add_radiotap) + iwl3945_add_radiotap(priv, rxb->skb, rx_hdr, stats); + ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); rxb->skb = NULL; } @@ -295,7 +381,6 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, struct iwl3945_rx_frame_hdr *rx_hdr = IWL_RX_HDR(pkt); struct iwl3945_rx_frame_end *rx_end = IWL_RX_END(pkt); struct ieee80211_hdr *header; - u16 phy_flags = le16_to_cpu(rx_hdr->phy_flags); u16 rx_stats_sig_avg = le16_to_cpu(rx_stats->sig_avg); u16 rx_stats_noise_diff = le16_to_cpu(rx_stats->noise_diff); struct ieee80211_rx_status stats = { @@ -325,7 +410,7 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, } if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - iwl3945_handle_data_packet(priv, 1, rxb, &stats, phy_flags); + iwl3945_handle_data_packet(priv, 1, rxb, &stats); return; } @@ -479,7 +564,7 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, } } - iwl3945_handle_data_packet(priv, 0, rxb, &stats, phy_flags); + iwl3945_handle_data_packet(priv, 0, rxb, &stats); break; case IEEE80211_FTYPE_CTL: @@ -496,8 +581,7 @@ static void iwl3945_rx_reply_rx(struct iwl3945_priv *priv, print_mac(mac2, header->addr2), print_mac(mac3, header->addr3)); else - iwl3945_handle_data_packet(priv, 1, rxb, &stats, - phy_flags); + iwl3945_handle_data_packet(priv, 1, rxb, &stats); break; } } diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h index bfa260654c5..f1aa4dc5aac 100644 --- a/drivers/net/wireless/iwlwifi/iwl-3945.h +++ b/drivers/net/wireless/iwlwifi/iwl-3945.h @@ -91,29 +91,6 @@ struct iwl3945_rx_mem_buffer { struct list_head list; }; -struct iwl3945_rt_rx_hdr { - struct ieee80211_radiotap_header rt_hdr; - __le64 rt_tsf; /* TSF */ - u8 rt_flags; /* radiotap packet flags */ - u8 rt_rate; /* rate in 500kb/s */ - __le16 rt_channelMHz; /* channel in MHz */ - __le16 rt_chbitmask; /* channel bitfield */ - s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ - s8 rt_dbmnoise; - u8 rt_antenna; /* antenna number */ - u8 payload[0]; /* payload... */ -} __attribute__ ((packed)); - -struct iwl3945_rt_tx_hdr { - struct ieee80211_radiotap_header rt_hdr; - u8 rt_rate; /* rate in 500kb/s */ - __le16 rt_channel; /* channel in mHz */ - __le16 rt_chbitmask; /* channel bitfield */ - s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ - u8 rt_antenna; /* antenna number */ - u8 payload[0]; /* payload... */ -} __attribute__ ((packed)); - /* * Generic queue structure * @@ -531,7 +508,7 @@ struct iwl3945_ibss_seq { }; /** - * struct iwl4965_driver_hw_info + * struct iwl3945_driver_hw_info * @max_txq_num: Max # Tx queues supported * @ac_queue_count: # Tx queues for EDCA Access Categories (AC) * @tx_cmd_len: Size of Tx command (but not including frame itself) @@ -725,6 +702,7 @@ struct iwl3945_priv { u8 phymode; int alloc_rxb_skb; + bool add_radiotap; void (*rx_handlers[REPLY_MAX])(struct iwl3945_priv *priv, struct iwl3945_rx_mem_buffer *rxb); @@ -980,6 +958,16 @@ static inline int is_channel_ibss(const struct iwl3945_channel_info *ch) return ((ch->flags & EEPROM_CHANNEL_IBSS)) ? 1 : 0; } +static inline int iwl3945_rate_index_from_plcp(int plcp) +{ + int i; + + for (i = 0; i < IWL_RATE_COUNT; i++) + if (iwl3945_rates[i].plcp == plcp) + return i; + return -1; +} + extern const struct iwl3945_channel_info *iwl3945_get_channel_info( const struct iwl3945_priv *priv, int phymode, u16 channel); diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index f65fd6e5fec..74999af3791 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -36,6 +36,7 @@ #include <linux/wireless.h> #include <net/mac80211.h> #include <linux/etherdevice.h> +#include <asm/unaligned.h> #include "iwl-4965.h" #include "iwl-helpers.h" @@ -3588,6 +3589,111 @@ void iwl4965_hw_rx_statistics(struct iwl4965_priv *priv, struct iwl4965_rx_mem_b queue_work(priv->workqueue, &priv->txpower_work); } +static void iwl4965_add_radiotap(struct iwl4965_priv *priv, + struct sk_buff *skb, + struct iwl4965_rx_phy_res *rx_start, + struct ieee80211_rx_status *stats, + u32 ampdu_status) +{ + s8 signal = stats->ssi; + s8 noise = 0; + int rate = stats->rate; + u64 tsf = stats->mactime; + __le16 phy_flags_hw = rx_start->phy_flags; + struct iwl4965_rt_rx_hdr { + struct ieee80211_radiotap_header rt_hdr; + __le64 rt_tsf; /* TSF */ + u8 rt_flags; /* radiotap packet flags */ + u8 rt_rate; /* rate in 500kb/s */ + __le16 rt_channelMHz; /* channel in MHz */ + __le16 rt_chbitmask; /* channel bitfield */ + s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ + s8 rt_dbmnoise; + u8 rt_antenna; /* antenna number */ + } __attribute__ ((packed)) *iwl4965_rt; + + /* TODO: We won't have enough headroom for HT frames. Fix it later. */ + if (skb_headroom(skb) < sizeof(*iwl4965_rt)) { + if (net_ratelimit()) + printk(KERN_ERR "not enough headroom [%d] for " + "radiotap head [%d]\n", + skb_headroom(skb), sizeof(*iwl4965_rt)); + return; + } + + /* put radiotap header in front of 802.11 header and data */ + iwl4965_rt = (void *)skb_push(skb, sizeof(*iwl4965_rt)); + + /* initialise radiotap header */ + iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; + iwl4965_rt->rt_hdr.it_pad = 0; + + /* total header + data */ + put_unaligned(cpu_to_le16(sizeof(*iwl4965_rt)), + &iwl4965_rt->rt_hdr.it_len); + + /* Indicate all the fields we add to the radiotap header */ + put_unaligned(cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | + (1 << IEEE80211_RADIOTAP_FLAGS) | + (1 << IEEE80211_RADIOTAP_RATE) | + (1 << IEEE80211_RADIOTAP_CHANNEL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | + (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | + (1 << IEEE80211_RADIOTAP_ANTENNA)), + &iwl4965_rt->rt_hdr.it_present); + + /* Zero the flags, we'll add to them as we go */ + iwl4965_rt->rt_flags = 0; + + put_unaligned(cpu_to_le64(tsf), &iwl4965_rt->rt_tsf); + + iwl4965_rt->rt_dbmsignal = signal; + iwl4965_rt->rt_dbmnoise = noise; + + /* Convert the channel frequency and set the flags */ + put_unaligned(cpu_to_le16(stats->freq), &iwl4965_rt->rt_channelMHz); + if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) + put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_5GHZ), + &iwl4965_rt->rt_chbitmask); + else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) + put_unaligned(cpu_to_le16(IEEE80211_CHAN_CCK | + IEEE80211_CHAN_2GHZ), + &iwl4965_rt->rt_chbitmask); + else /* 802.11g */ + put_unaligned(cpu_to_le16(IEEE80211_CHAN_OFDM | + IEEE80211_CHAN_2GHZ), + &iwl4965_rt->rt_chbitmask); + + rate = iwl4965_rate_index_from_plcp(rate); + if (rate == -1) + iwl4965_rt->rt_rate = 0; + else + iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee; + + /* + * "antenna number" + * + * It seems that the antenna field in the phy flags value + * is actually a bitfield. This is undefined by radiotap, + * it wants an actual antenna number but I always get "7" + * for most legacy frames I receive indicating that the + * same frame was received on all three RX chains. + * + * I think this field should be removed in favour of a + * new 802.11n radiotap field "RX chains" that is defined + * as a bitmask. + */ + iwl4965_rt->rt_antenna = + le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; + + /* set the preamble flag if appropriate */ + if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) + iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; + + stats->flag |= RX_FLAG_RADIOTAP; +} + static void iwl4965_handle_data_packet(struct iwl4965_priv *priv, int is_data, int include_phy, struct iwl4965_rx_mem_buffer *rxb, @@ -3630,8 +3736,7 @@ static void iwl4965_handle_data_packet(struct iwl4965_priv *priv, int is_data, rx_end = (__le32 *) (((u8 *) hdr) + len); } if (len > priv->hw_setting.max_pkt_size || len < 16) { - IWL_WARNING("byte count out of range [16,4K]" - " : %d\n", len); + IWL_WARNING("byte count out of range [16,4K] : %d\n", len); return; } @@ -3649,20 +3754,15 @@ static void iwl4965_handle_data_packet(struct iwl4965_priv *priv, int is_data, return; } - if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) { - if (iwl4965_param_hwcrypto) - iwl4965_set_decrypted_flag(priv, rxb->skb, - ampdu_status, stats); - iwl4965_handle_data_packet_monitor(priv, rxb, hdr, len, stats, 0); - return; - } - stats->flag = 0; hdr = (struct ieee80211_hdr *)rxb->skb->data; if (iwl4965_param_hwcrypto) iwl4965_set_decrypted_flag(priv, rxb->skb, ampdu_status, stats); + if (priv->add_radiotap) + iwl4965_add_radiotap(priv, rxb->skb, rx_start, stats, ampdu_status); + ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); priv->alloc_rxb_skb--; rxb->skb = NULL; diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.h b/drivers/net/wireless/iwlwifi/iwl-4965.h index 267ae75254f..9a975efc946 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.h +++ b/drivers/net/wireless/iwlwifi/iwl-4965.h @@ -91,29 +91,6 @@ struct iwl4965_rx_mem_buffer { struct list_head list; }; -struct iwl4965_rt_rx_hdr { - struct ieee80211_radiotap_header rt_hdr; - __le64 rt_tsf; /* TSF */ - u8 rt_flags; /* radiotap packet flags */ - u8 rt_rate; /* rate in 500kb/s */ - __le16 rt_channelMHz; /* channel in MHz */ - __le16 rt_chbitmask; /* channel bitfield */ - s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ - s8 rt_dbmnoise; - u8 rt_antenna; /* antenna number */ - u8 payload[0]; /* payload... */ -} __attribute__ ((packed)); - -struct iwl4965_rt_tx_hdr { - struct ieee80211_radiotap_header rt_hdr; - u8 rt_rate; /* rate in 500kb/s */ - __le16 rt_channel; /* channel in mHz */ - __le16 rt_chbitmask; /* channel bitfield */ - s8 rt_dbmsignal; /* signal in dBm, kluged to signed */ - u8 rt_antenna; /* antenna number */ - u8 payload[0]; /* payload... */ -} __attribute__ ((packed)); - /* * Generic queue structure * @@ -1054,6 +1031,7 @@ struct iwl4965_priv { u8 phymode; int alloc_rxb_skb; + bool add_radiotap; void (*rx_handlers[REPLY_MAX])(struct iwl4965_priv *priv, struct iwl4965_rx_mem_buffer *rxb); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index c366ad55f70..40b69182e4d 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -1497,16 +1497,6 @@ unsigned int iwl3945_fill_beacon_frame(struct iwl3945_priv *priv, return priv->ibss_beacon->len; } -static int iwl3945_rate_index_from_plcp(int plcp) -{ - int i = 0; - - for (i = 0; i < IWL_RATE_COUNT; i++) - if (iwl3945_rates[i].plcp == plcp) - return i; - return -1; -} - static u8 iwl3945_rate_get_lowest_plcp(int rate_mask) { u8 i; @@ -3121,94 +3111,6 @@ void iwl3945_set_decrypted_flag(struct iwl3945_priv *priv, struct sk_buff *skb, } } -void iwl3945_handle_data_packet_monitor(struct iwl3945_priv *priv, - struct iwl3945_rx_mem_buffer *rxb, - void *data, short len, - struct ieee80211_rx_status *stats, - u16 phy_flags) -{ - struct iwl3945_rt_rx_hdr *iwl3945_rt; - - /* First cache any information we need before we overwrite - * the information provided in the skb from the hardware */ - s8 signal = stats->ssi; - s8 noise = 0; - int rate = stats->rate; - u64 tsf = stats->mactime; - __le16 phy_flags_hw = cpu_to_le16(phy_flags); - - /* We received data from the HW, so stop the watchdog */ - if (len > IWL_RX_BUF_SIZE - sizeof(*iwl3945_rt)) { - IWL_DEBUG_DROP("Dropping too large packet in monitor\n"); - return; - } - - /* copy the frame data to write after where the radiotap header goes */ - iwl3945_rt = (void *)rxb->skb->data; - memmove(iwl3945_rt->payload, data, len); - - iwl3945_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; - iwl3945_rt->rt_hdr.it_pad = 0; /* always good to zero */ - - /* total header + data */ - iwl3945_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl3945_rt)); - - /* Set the size of the skb to the size of the frame */ - skb_put(rxb->skb, sizeof(*iwl3945_rt) + len); - - /* Big bitfield of all the fields we provide in radiotap */ - iwl3945_rt->rt_hdr.it_present = - cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | - (1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | - (1 << IEEE80211_RADIOTAP_ANTENNA)); - - /* Zero the flags, we'll add to them as we go */ - iwl3945_rt->rt_flags = 0; - - iwl3945_rt->rt_tsf = cpu_to_le64(tsf); - - /* Convert to dBm */ - iwl3945_rt->rt_dbmsignal = signal; - iwl3945_rt->rt_dbmnoise = noise; - - /* Convert the channel frequency and set the flags */ - iwl3945_rt->rt_channelMHz = cpu_to_le16(stats->freq); - if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) - iwl3945_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); - else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) - iwl3945_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); - else /* 802.11g */ - iwl3945_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ)); - - rate = iwl3945_rate_index_from_plcp(rate); - if (rate == -1) - iwl3945_rt->rt_rate = 0; - else - iwl3945_rt->rt_rate = iwl3945_rates[rate].ieee; - - /* antenna number */ - iwl3945_rt->rt_antenna = - le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; - - /* set the preamble flag if we have it */ - if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) - iwl3945_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; - - IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); - - stats->flag |= RX_FLAG_RADIOTAP; - ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); - rxb->skb = NULL; -} - - #define IWL_PACKET_RETRY_TIME HZ int iwl3945_is_duplicate_packet(struct iwl3945_priv *priv, struct ieee80211_hdr *header) @@ -4147,6 +4049,15 @@ static void iwl3945_rx_allocate(struct iwl3945_priv *priv) * more buffers it will schedule replenish */ break; } + + /* If radiotap head is required, reserve some headroom here. + * The physical head count is a variable rx_stats->phy_count. + * We reserve 4 bytes here. Plus these extra bytes, the + * headroom of the physical head should be enough for the + * radiotap head that iwl3945 supported. See iwl3945_rt. + */ + skb_reserve(rxb->skb, 4); + priv->alloc_rxb_skb++; list_del(element); @@ -7114,6 +7025,8 @@ static int iwl3945_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel); + priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); + if (!iwl3945_is_ready(priv)) { IWL_DEBUG_MAC80211("leave - not ready\n"); ret = -EIO; diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 14a1124e6ef..07089754b54 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -41,7 +41,6 @@ #include <linux/etherdevice.h> #include <linux/if_arp.h> -#include <net/ieee80211_radiotap.h> #include <net/mac80211.h> #include <asm/div64.h> @@ -3247,93 +3246,6 @@ void iwl4965_set_decrypted_flag(struct iwl4965_priv *priv, struct sk_buff *skb, } } -void iwl4965_handle_data_packet_monitor(struct iwl4965_priv *priv, - struct iwl4965_rx_mem_buffer *rxb, - void *data, short len, - struct ieee80211_rx_status *stats, - u16 phy_flags) -{ - struct iwl4965_rt_rx_hdr *iwl4965_rt; - - /* First cache any information we need before we overwrite - * the information provided in the skb from the hardware */ - s8 signal = stats->ssi; - s8 noise = 0; - int rate = stats->rate; - u64 tsf = stats->mactime; - __le16 phy_flags_hw = cpu_to_le16(phy_flags); - - /* We received data from the HW, so stop the watchdog */ - if (len > priv->hw_setting.rx_buf_size - sizeof(*iwl4965_rt)) { - IWL_DEBUG_DROP("Dropping too large packet in monitor\n"); - return; - } - - /* copy the frame data to write after where the radiotap header goes */ - iwl4965_rt = (void *)rxb->skb->data; - memmove(iwl4965_rt->payload, data, len); - - iwl4965_rt->rt_hdr.it_version = PKTHDR_RADIOTAP_VERSION; - iwl4965_rt->rt_hdr.it_pad = 0; /* always good to zero */ - - /* total header + data */ - iwl4965_rt->rt_hdr.it_len = cpu_to_le16(sizeof(*iwl4965_rt)); - - /* Set the size of the skb to the size of the frame */ - skb_put(rxb->skb, sizeof(*iwl4965_rt) + len); - - /* Big bitfield of all the fields we provide in radiotap */ - iwl4965_rt->rt_hdr.it_present = - cpu_to_le32((1 << IEEE80211_RADIOTAP_TSFT) | - (1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL) | - (1 << IEEE80211_RADIOTAP_DBM_ANTNOISE) | - (1 << IEEE80211_RADIOTAP_ANTENNA)); - - /* Zero the flags, we'll add to them as we go */ - iwl4965_rt->rt_flags = 0; - - iwl4965_rt->rt_tsf = cpu_to_le64(tsf); - - /* Convert to dBm */ - iwl4965_rt->rt_dbmsignal = signal; - iwl4965_rt->rt_dbmnoise = noise; - - /* Convert the channel frequency and set the flags */ - iwl4965_rt->rt_channelMHz = cpu_to_le16(stats->freq); - if (!(phy_flags_hw & RX_RES_PHY_FLAGS_BAND_24_MSK)) - iwl4965_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_5GHZ)); - else if (phy_flags_hw & RX_RES_PHY_FLAGS_MOD_CCK_MSK) - iwl4965_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_CCK | IEEE80211_CHAN_2GHZ)); - else /* 802.11g */ - iwl4965_rt->rt_chbitmask = - cpu_to_le16((IEEE80211_CHAN_OFDM | IEEE80211_CHAN_2GHZ)); - - rate = iwl4965_rate_index_from_plcp(rate); - if (rate == -1) - iwl4965_rt->rt_rate = 0; - else - iwl4965_rt->rt_rate = iwl4965_rates[rate].ieee; - - /* antenna number */ - iwl4965_rt->rt_antenna = - le16_to_cpu(phy_flags_hw & RX_RES_PHY_FLAGS_ANTENNA_MSK) >> 4; - - /* set the preamble flag if we have it */ - if (phy_flags_hw & RX_RES_PHY_FLAGS_SHORT_PREAMBLE_MSK) - iwl4965_rt->rt_flags |= IEEE80211_RADIOTAP_F_SHORTPRE; - - IWL_DEBUG_RX("Rx packet of %d bytes.\n", rxb->skb->len); - - stats->flag |= RX_FLAG_RADIOTAP; - ieee80211_rx_irqsafe(priv->hw, rxb->skb, stats); - rxb->skb = NULL; -} - #define IWL_PACKET_RETRY_TIME HZ @@ -7556,6 +7468,8 @@ static int iwl4965_mac_config(struct ieee80211_hw *hw, struct ieee80211_conf *co mutex_lock(&priv->mutex); IWL_DEBUG_MAC80211("enter to channel %d\n", conf->channel); + priv->add_radiotap = !!(conf->flags & IEEE80211_CONF_RADIOTAP); + if (!iwl4965_is_ready(priv)) { IWL_DEBUG_MAC80211("leave - not ready\n"); ret = -EIO; |