diff options
Diffstat (limited to 'drivers/net/wireless/ath/wcn36xx/txrx.c')
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/txrx.c | 121 |
1 files changed, 111 insertions, 10 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c index a6902371e89c..393f26081ccb 100644 --- a/drivers/net/wireless/ath/wcn36xx/txrx.c +++ b/drivers/net/wireless/ath/wcn36xx/txrx.c @@ -23,9 +23,105 @@ static inline int get_rssi0(struct wcn36xx_rx_bd *bd) return 100 - ((bd->phy_stat0 >> 24) & 0xff); } + +struct wcn36xx_rate { + u16 bitrate; + u16 mcs_or_legacy_index; + enum mac80211_rx_encoding encoding; + enum mac80211_rx_encoding_flags encoding_flags; + enum rate_info_bw bw; +}; + +static const struct wcn36xx_rate wcn36xx_rate_table[] = { + /* 11b rates */ + { 10, 0, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 20, 1, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 55, 2, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 110, 3, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + + /* 11b SP (short preamble) */ + { 10, 0, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 20, 1, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 55, 2, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + { 110, 3, RX_ENC_LEGACY, RX_ENC_FLAG_SHORTPRE, RATE_INFO_BW_20 }, + + /* 11ag */ + { 60, 4, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 90, 5, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 120, 6, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 180, 7, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 240, 8, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 360, 9, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 480, 10, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + { 540, 11, RX_ENC_LEGACY, 0, RATE_INFO_BW_20 }, + + /* 11n */ + { 65, 0, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 130, 1, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 195, 2, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 260, 3, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 390, 4, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 520, 5, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 585, 6, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + { 650, 7, RX_ENC_HT, 0, RATE_INFO_BW_20 }, + + /* 11n SGI */ + { 72, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 144, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 217, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 289, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 434, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 578, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 650, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + { 722, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_20 }, + + /* 11n GF (greenfield) */ + { 65, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 130, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 195, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 260, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 390, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 520, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 585, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + { 650, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_20 }, + + /* 11n CB (channel bonding) */ + { 135, 0, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 270, 1, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 405, 2, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 540, 3, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 810, 4, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1080, 5, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1215, 6, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + { 1350, 7, RX_ENC_HT, 0, RATE_INFO_BW_40 }, + + /* 11n CB + SGI */ + { 150, 0, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 300, 1, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 450, 2, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 600, 3, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 900, 4, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1200, 5, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1350, 6, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + { 1500, 7, RX_ENC_HT, RX_ENC_FLAG_SHORT_GI, RATE_INFO_BW_40 }, + + /* 11n GF + CB */ + { 135, 0, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 270, 1, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 405, 2, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 540, 3, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 810, 4, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1080, 5, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1215, 6, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + { 1350, 7, RX_ENC_HT, RX_ENC_FLAG_HT_GF, RATE_INFO_BW_40 }, + + /* TODO: AC rates */ +}; + int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) { struct ieee80211_rx_status status; + const struct wcn36xx_rate *rate; struct ieee80211_hdr *hdr; struct wcn36xx_rx_bd *bd; u16 fc, sn; @@ -49,19 +145,11 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) fc = __le16_to_cpu(hdr->frame_control); sn = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)); - /* When scanning associate beacons to this */ - if (ieee80211_is_beacon(hdr->frame_control) && wcn->scan_freq) { - status.freq = wcn->scan_freq; - status.band = wcn->scan_band; - } else { - status.freq = WCN36XX_CENTER_FREQ(wcn); - status.band = WCN36XX_BAND(wcn); - } - + status.freq = WCN36XX_CENTER_FREQ(wcn); + status.band = WCN36XX_BAND(wcn); status.mactime = 10; status.signal = -get_rssi0(bd); status.antenna = 1; - status.rate_idx = 1; status.flag = 0; status.rx_flags = 0; status.flag |= RX_FLAG_IV_STRIPPED | @@ -70,6 +158,19 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb) wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x\n", status.flag); + if (bd->rate_id < ARRAY_SIZE(wcn36xx_rate_table)) { + rate = &wcn36xx_rate_table[bd->rate_id]; + status.encoding = rate->encoding; + status.enc_flags = rate->encoding_flags; + status.bw = rate->bw; + status.rate_idx = rate->mcs_or_legacy_index; + } else { + status.encoding = 0; + status.bw = 0; + status.enc_flags = 0; + status.rate_idx = 0; + } + memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status)); if (ieee80211_is_beacon(hdr->frame_control)) { |