diff options
Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
| -rw-r--r-- | drivers/net/wireless/b43/xmit.c | 201 |
1 files changed, 127 insertions, 74 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c index 3307ba1856b1..3fc53e8b4416 100644 --- a/drivers/net/wireless/b43/xmit.c +++ b/drivers/net/wireless/b43/xmit.c @@ -5,7 +5,7 @@ Transmission (TX/RX) related functions. Copyright (C) 2005 Martin Langer <martin-langer@gmx.de> - Copyright (C) 2005 Stefano Brivio <st3@riseup.net> + Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it> Copyright (C) 2005, 2006 Michael Buesch <mb@bu3sch.de> Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org> Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch> @@ -30,7 +30,7 @@ #include "xmit.h" #include "phy.h" #include "dma.h" -#include "pio.h" + /* Extract the bitrate out of a CCK PLCP header. */ static u8 b43_plcp_get_bitrate_cck(struct b43_plcp_hdr6 *plcp) @@ -177,13 +177,15 @@ static u8 b43_calc_fallback_rate(u8 bitrate) return 0; } -static void generate_txhdr_fw4(struct b43_wldev *dev, - struct b43_txhdr_fw4 *txhdr, - const unsigned char *fragment_data, - unsigned int fragment_len, - const struct ieee80211_tx_control *txctl, - u16 cookie) +/* Generate a TX data header. */ +void b43_generate_txhdr(struct b43_wldev *dev, + u8 *_txhdr, + const unsigned char *fragment_data, + unsigned int fragment_len, + const struct ieee80211_tx_control *txctl, + u16 cookie) { + struct b43_txhdr *txhdr = (struct b43_txhdr *)_txhdr; const struct b43_phy *phy = &dev->phy; const struct ieee80211_hdr *wlhdr = (const struct ieee80211_hdr *)fragment_data; @@ -221,7 +223,7 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, } else { int fbrate_base100kbps = B43_RATE_TO_BASE100KBPS(rate_fb); txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw, - dev->wl->if_id, + txctl->vif, fragment_len, fbrate_base100kbps); } @@ -241,23 +243,30 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, plcp_fragment_len += txctl->icv_len; key_idx = b43_kidx_to_fw(dev, key_idx); - mac_ctl |= (key_idx << B43_TX4_MAC_KEYIDX_SHIFT) & - B43_TX4_MAC_KEYIDX; - mac_ctl |= (key->algorithm << B43_TX4_MAC_KEYALG_SHIFT) & - B43_TX4_MAC_KEYALG; + mac_ctl |= (key_idx << B43_TXH_MAC_KEYIDX_SHIFT) & + B43_TXH_MAC_KEYIDX; + mac_ctl |= (key->algorithm << B43_TXH_MAC_KEYALG_SHIFT) & + B43_TXH_MAC_KEYALG; wlhdr_len = ieee80211_get_hdrlen(fctl); iv_len = min((size_t) txctl->iv_len, ARRAY_SIZE(txhdr->iv)); memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len); } - b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp), - plcp_fragment_len, rate); + if (b43_is_old_txhdr_format(dev)) { + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->old_format.plcp), + plcp_fragment_len, rate); + } else { + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->new_format.plcp), + plcp_fragment_len, rate); + } b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp_fb), plcp_fragment_len, rate_fb); /* Extra Frame Types */ if (rate_fb_ofdm) - extra_ft |= B43_TX4_EFT_FBOFDM; + extra_ft |= B43_TXH_EFT_FB_OFDM; + else + extra_ft |= B43_TXH_EFT_FB_CCK; /* Set channel radio code. Note that the micrcode ORs 0x100 to * this value before comparing it to the value in SHM, if this @@ -267,18 +276,27 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, /* PHY TX Control word */ if (rate_ofdm) - phy_ctl |= B43_TX4_PHY_OFDM; + phy_ctl |= B43_TXH_PHY_ENC_OFDM; + else + phy_ctl |= B43_TXH_PHY_ENC_CCK; if (dev->short_preamble) - phy_ctl |= B43_TX4_PHY_SHORTPRMBL; - switch (txctl->antenna_sel_tx) { - case 0: - phy_ctl |= B43_TX4_PHY_ANTLAST; + phy_ctl |= B43_TXH_PHY_SHORTPRMBL; + + switch (b43_ieee80211_antenna_sanitize(dev, txctl->antenna_sel_tx)) { + case 0: /* Default */ + phy_ctl |= B43_TXH_PHY_ANT01AUTO; + break; + case 1: /* Antenna 0 */ + phy_ctl |= B43_TXH_PHY_ANT0; break; - case 1: - phy_ctl |= B43_TX4_PHY_ANT0; + case 2: /* Antenna 1 */ + phy_ctl |= B43_TXH_PHY_ANT1; break; - case 2: - phy_ctl |= B43_TX4_PHY_ANT1; + case 3: /* Antenna 2 */ + phy_ctl |= B43_TXH_PHY_ANT2; + break; + case 4: /* Antenna 3 */ + phy_ctl |= B43_TXH_PHY_ANT3; break; default: B43_WARN_ON(1); @@ -286,14 +304,16 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, /* MAC control */ if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK)) - mac_ctl |= B43_TX4_MAC_ACK; + mac_ctl |= B43_TXH_MAC_ACK; if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) && ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL))) - mac_ctl |= B43_TX4_MAC_HWSEQ; + mac_ctl |= B43_TXH_MAC_HWSEQ; if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT) - mac_ctl |= B43_TX4_MAC_STMSDU; + mac_ctl |= B43_TXH_MAC_STMSDU; if (phy->type == B43_PHYTYPE_A) - mac_ctl |= B43_TX4_MAC_5GHZ; + mac_ctl |= B43_TXH_MAC_5GHZ; + if (txctl->flags & IEEE80211_TXCTL_LONG_RETRY_LIMIT) + mac_ctl |= B43_TXH_MAC_LONGFRAME; /* Generate the RTS or CTS-to-self frame */ if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) || @@ -302,6 +322,7 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, struct ieee80211_hdr *hdr; int rts_rate, rts_rate_fb; int rts_rate_ofdm, rts_rate_fb_ofdm; + struct b43_plcp_hdr6 *plcp; rts_rate = txctl->rts_cts_rate; rts_rate_ofdm = b43_is_ofdm_rate(rts_rate); @@ -309,59 +330,84 @@ static void generate_txhdr_fw4(struct b43_wldev *dev, rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb); if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) { - ieee80211_ctstoself_get(dev->wl->hw, dev->wl->if_id, + struct ieee80211_cts *cts; + + if (b43_is_old_txhdr_format(dev)) { + cts = (struct ieee80211_cts *) + (txhdr->old_format.rts_frame); + } else { + cts = (struct ieee80211_cts *) + (txhdr->new_format.rts_frame); + } + ieee80211_ctstoself_get(dev->wl->hw, txctl->vif, fragment_data, fragment_len, - txctl, - (struct ieee80211_cts *)(txhdr-> - rts_frame)); - mac_ctl |= B43_TX4_MAC_SENDCTS; + txctl, cts); + mac_ctl |= B43_TXH_MAC_SENDCTS; len = sizeof(struct ieee80211_cts); } else { - ieee80211_rts_get(dev->wl->hw, dev->wl->if_id, - fragment_data, fragment_len, txctl, - (struct ieee80211_rts *)(txhdr-> - rts_frame)); - mac_ctl |= B43_TX4_MAC_SENDRTS; + struct ieee80211_rts *rts; + + if (b43_is_old_txhdr_format(dev)) { + rts = (struct ieee80211_rts *) + (txhdr->old_format.rts_frame); + } else { + rts = (struct ieee80211_rts *) + (txhdr->new_format.rts_frame); + } + ieee80211_rts_get(dev->wl->hw, txctl->vif, + fragment_data, fragment_len, + txctl, rts); + mac_ctl |= B43_TXH_MAC_SENDRTS; len = sizeof(struct ieee80211_rts); } len += FCS_LEN; - b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr-> - rts_plcp), len, - rts_rate); - b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr-> - rts_plcp_fb), + + /* Generate the PLCP headers for the RTS/CTS frame */ + if (b43_is_old_txhdr_format(dev)) + plcp = &txhdr->old_format.rts_plcp; + else + plcp = &txhdr->new_format.rts_plcp; + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)plcp, + len, rts_rate); + plcp = &txhdr->rts_plcp_fb; + b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)plcp, len, rts_rate_fb); - hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame); + + if (b43_is_old_txhdr_format(dev)) { + hdr = (struct ieee80211_hdr *) + (&txhdr->old_format.rts_frame); + } else { + hdr = (struct ieee80211_hdr *) + (&txhdr->new_format.rts_frame); + } txhdr->rts_dur_fb = hdr->duration_id; + if (rts_rate_ofdm) { - extra_ft |= B43_TX4_EFT_RTSOFDM; + extra_ft |= B43_TXH_EFT_RTS_OFDM; txhdr->phy_rate_rts = b43_plcp_get_ratecode_ofdm(rts_rate); - } else + } else { + extra_ft |= B43_TXH_EFT_RTS_CCK; txhdr->phy_rate_rts = b43_plcp_get_ratecode_cck(rts_rate); + } if (rts_rate_fb_ofdm) - extra_ft |= B43_TX4_EFT_RTSFBOFDM; - mac_ctl |= B43_TX4_MAC_LONGFRAME; + extra_ft |= B43_TXH_EFT_RTSFB_OFDM; + else + extra_ft |= B43_TXH_EFT_RTSFB_CCK; } /* Magic cookie */ - txhdr->cookie = cpu_to_le16(cookie); + if (b43_is_old_txhdr_format(dev)) + txhdr->old_format.cookie = cpu_to_le16(cookie); + else + txhdr->new_format.cookie = cpu_to_le16(cookie); /* Apply the bitfields */ txhdr->mac_ctl = cpu_to_le32(mac_ctl); txhdr->phy_ctl = cpu_to_le16(phy_ctl); txhdr->extra_ft = extra_ft; -} -void b43_generate_txhdr(struct b43_wldev *dev, - u8 * txhdr, - const unsigned char *fragment_data, - unsigned int fragment_len, - const struct ieee80211_tx_control *txctl, u16 cookie) -{ - generate_txhdr_fw4(dev, (struct b43_txhdr_fw4 *)txhdr, - fragment_data, fragment_len, txctl, cookie); } static s8 b43_rssi_postprocess(struct b43_wldev *dev, @@ -384,7 +430,7 @@ static s8 b43_rssi_postprocess(struct b43_wldev *dev, else tmp -= 3; } else { - if (dev->dev->bus->sprom.r1. + if (dev->dev->bus->sprom. boardflags_lo & B43_BFL_RSSI) { if (in_rssi > 63) in_rssi = 63; @@ -488,7 +534,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) } wlhdr = (struct ieee80211_hdr *)(skb->data); fctl = le16_to_cpu(wlhdr->frame_control); - skb_trim(skb, skb->len - FCS_LEN); if (macstat & B43_RX_MAC_DEC) { unsigned int keyidx; @@ -525,7 +570,24 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr) else status.rate = b43_plcp_get_bitrate_cck(plcp); status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT); - status.mactime = mactime; + + /* + * If monitors are present get full 64-bit timestamp. This + * code assumes we get to process the packet within 16 bits + * of timestamp, i.e. about 65 milliseconds after the PHY + * received the first symbol. + */ + if (dev->wl->radiotap_enabled) { + u16 low_mactime_now; + + b43_tsf_read(dev, &status.mactime); + low_mactime_now = status.mactime; + status.mactime = status.mactime & ~0xFFFFULL; + status.mactime += mactime; + if (low_mactime_now <= mactime) + status.mactime -= 0x10000; + status.flag |= RX_FLAG_TSFT; + } chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT; switch (chanstat & B43_RX_CHAN_PHYTYPE) { @@ -586,10 +648,7 @@ void b43_handle_txstatus(struct b43_wldev *dev, dev->wl->ieee_stats.dot11RTSSuccessCount++; } - if (b43_using_pio(dev)) - b43_pio_handle_txstatus(dev, status); - else - b43_dma_handle_txstatus(dev, status); + b43_dma_handle_txstatus(dev, status); } /* Handle TX status report as received through DMA/PIO queues */ @@ -618,19 +677,13 @@ void b43_handle_hwtxstatus(struct b43_wldev *dev, /* Stop any TX operation on the device (suspend the hardware queues) */ void b43_tx_suspend(struct b43_wldev *dev) { - if (b43_using_pio(dev)) - b43_pio_freeze_txqueues(dev); - else - b43_dma_tx_suspend(dev); + b43_dma_tx_suspend(dev); } /* Resume any TX operation on the device (resume the hardware queues) */ void b43_tx_resume(struct b43_wldev *dev) { - if (b43_using_pio(dev)) - b43_pio_thaw_txqueues(dev); - else - b43_dma_tx_resume(dev); + b43_dma_tx_resume(dev); } #if 0 |