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path: root/drivers/net/wireless/b43/xmit.c
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Diffstat (limited to 'drivers/net/wireless/b43/xmit.c')
-rw-r--r--drivers/net/wireless/b43/xmit.c278
1 files changed, 213 insertions, 65 deletions
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index e6b0528f3b5..6e6ef3fc224 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -6,7 +6,7 @@
Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it>
- Copyright (C) 2005, 2006 Michael Buesch <mb@bu3sch.de>
+ Copyright (C) 2005, 2006 Michael Buesch <m@bues.ch>
Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
@@ -32,6 +32,36 @@
#include "dma.h"
#include "pio.h"
+static const struct b43_tx_legacy_rate_phy_ctl_entry b43_tx_legacy_rate_phy_ctl[] = {
+ { B43_CCK_RATE_1MB, 0x0, 0x0 },
+ { B43_CCK_RATE_2MB, 0x0, 0x1 },
+ { B43_CCK_RATE_5MB, 0x0, 0x2 },
+ { B43_CCK_RATE_11MB, 0x0, 0x3 },
+ { B43_OFDM_RATE_6MB, B43_TXH_PHY1_CRATE_1_2, B43_TXH_PHY1_MODUL_BPSK },
+ { B43_OFDM_RATE_9MB, B43_TXH_PHY1_CRATE_3_4, B43_TXH_PHY1_MODUL_BPSK },
+ { B43_OFDM_RATE_12MB, B43_TXH_PHY1_CRATE_1_2, B43_TXH_PHY1_MODUL_QPSK },
+ { B43_OFDM_RATE_18MB, B43_TXH_PHY1_CRATE_3_4, B43_TXH_PHY1_MODUL_QPSK },
+ { B43_OFDM_RATE_24MB, B43_TXH_PHY1_CRATE_1_2, B43_TXH_PHY1_MODUL_QAM16 },
+ { B43_OFDM_RATE_36MB, B43_TXH_PHY1_CRATE_3_4, B43_TXH_PHY1_MODUL_QAM16 },
+ { B43_OFDM_RATE_48MB, B43_TXH_PHY1_CRATE_2_3, B43_TXH_PHY1_MODUL_QAM64 },
+ { B43_OFDM_RATE_54MB, B43_TXH_PHY1_CRATE_3_4, B43_TXH_PHY1_MODUL_QAM64 },
+};
+
+static const struct b43_tx_legacy_rate_phy_ctl_entry *
+b43_tx_legacy_rate_phy_ctl_ent(u8 bitrate)
+{
+ const struct b43_tx_legacy_rate_phy_ctl_entry *e;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(b43_tx_legacy_rate_phy_ctl); i++) {
+ e = &(b43_tx_legacy_rate_phy_ctl[i]);
+ if (e->bitrate == bitrate)
+ return e;
+ }
+
+ B43_WARN_ON(1);
+ return NULL;
+}
/* Extract the bitrate index out of a CCK PLCP header. */
static int b43_plcp_get_bitrate_idx_cck(struct b43_plcp_hdr6 *plcp)
@@ -145,6 +175,35 @@ void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp,
}
}
+/* TODO: verify if needed for SSLPN or LCN */
+static u16 b43_generate_tx_phy_ctl1(struct b43_wldev *dev, u8 bitrate)
+{
+ const struct b43_phy *phy = &dev->phy;
+ const struct b43_tx_legacy_rate_phy_ctl_entry *e;
+ u16 control = 0;
+ u16 bw;
+
+ if (phy->type == B43_PHYTYPE_LP)
+ bw = B43_TXH_PHY1_BW_20;
+ else /* FIXME */
+ bw = B43_TXH_PHY1_BW_20;
+
+ if (0) { /* FIXME: MIMO */
+ } else if (b43_is_cck_rate(bitrate) && phy->type != B43_PHYTYPE_LP) {
+ control = bw;
+ } else {
+ control = bw;
+ e = b43_tx_legacy_rate_phy_ctl_ent(bitrate);
+ if (e) {
+ control |= e->coding_rate;
+ control |= e->modulation;
+ }
+ control |= B43_TXH_PHY1_MODE_SISO;
+ }
+
+ return control;
+}
+
static u8 b43_calc_fallback_rate(u8 bitrate)
{
switch (bitrate) {
@@ -198,6 +257,9 @@ int b43_generate_txhdr(struct b43_wldev *dev,
unsigned int plcp_fragment_len;
u32 mac_ctl = 0;
u16 phy_ctl = 0;
+ bool fill_phy_ctl1 = (phy->type == B43_PHYTYPE_LP ||
+ phy->type == B43_PHYTYPE_N ||
+ phy->type == B43_PHYTYPE_HT);
u8 extra_ft = 0;
struct ieee80211_rate *txrate;
struct ieee80211_tx_rate *rates;
@@ -216,7 +278,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
else
txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate);
txhdr->mac_frame_ctl = wlhdr->frame_control;
- memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
+ memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
/* Calculate duration for fallback rate */
if ((rate_fb == rate) ||
@@ -228,7 +290,8 @@ int b43_generate_txhdr(struct b43_wldev *dev,
txhdr->dur_fb = wlhdr->duration_id;
} else {
txhdr->dur_fb = ieee80211_generic_frame_duration(
- dev->wl->hw, info->control.vif, fragment_len, fbrate);
+ dev->wl->hw, info->control.vif, info->band,
+ fragment_len, fbrate);
}
plcp_fragment_len = fragment_len + FCS_LEN;
@@ -265,8 +328,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
/* we give the phase1key and iv16 here, the key is stored in
* shm. With that the hardware can do phase 2 and encryption.
*/
- ieee80211_get_tkip_key(info->control.hw_key, skb_frag,
- IEEE80211_TKIP_P1_KEY, (u8*)phase1key);
+ ieee80211_get_tkip_p1k(info->control.hw_key, skb_frag, phase1key);
/* phase1key is in host endian. Copy to little-endian txhdr->iv. */
for (i = 0; i < 5; i++) {
txhdr->iv[i * 2 + 0] = phase1key[i];
@@ -275,17 +337,24 @@ int b43_generate_txhdr(struct b43_wldev *dev,
/* iv16 */
memcpy(txhdr->iv + 10, ((u8 *) wlhdr) + wlhdr_len, 3);
} else {
- iv_len = min((size_t) info->control.hw_key->iv_len,
+ iv_len = min_t(size_t, info->control.hw_key->iv_len,
ARRAY_SIZE(txhdr->iv));
memcpy(txhdr->iv, ((u8 *) wlhdr) + wlhdr_len, iv_len);
}
}
- if (b43_is_old_txhdr_format(dev)) {
- b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->old_format.plcp),
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
+ b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->format_598.plcp),
plcp_fragment_len, rate);
- } else {
- b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->new_format.plcp),
+ break;
+ case B43_FW_HDR_351:
+ b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->format_351.plcp),
+ plcp_fragment_len, rate);
+ break;
+ case B43_FW_HDR_410:
+ b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->format_410.plcp),
plcp_fragment_len, rate);
+ break;
}
b43_generate_plcp_hdr((struct b43_plcp_hdr4 *)(&txhdr->plcp_fb),
plcp_fragment_len, rate_fb);
@@ -310,7 +379,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
phy_ctl |= B43_TXH_PHY_SHORTPRMBL;
- switch (b43_ieee80211_antenna_sanitize(dev, info->antenna_sel_tx)) {
+ switch (b43_ieee80211_antenna_sanitize(dev, 0)) {
case 0: /* Default */
phy_ctl |= B43_TXH_PHY_ANT01AUTO;
break;
@@ -339,7 +408,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
mac_ctl |= B43_TXH_MAC_HWSEQ;
if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
mac_ctl |= B43_TXH_MAC_STMSDU;
- if (phy->type == B43_PHYTYPE_A)
+ if (!phy->gmode)
mac_ctl |= B43_TXH_MAC_5GHZ;
/* Overwrite rates[0].count to make the retry calculation
@@ -358,10 +427,10 @@ int b43_generate_txhdr(struct b43_wldev *dev,
if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
(rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT)) {
unsigned int len;
- struct ieee80211_hdr *hdr;
+ struct ieee80211_hdr *uninitialized_var(hdr);
int rts_rate, rts_rate_fb;
int rts_rate_ofdm, rts_rate_fb_ofdm;
- struct b43_plcp_hdr6 *plcp;
+ struct b43_plcp_hdr6 *uninitialized_var(plcp);
struct ieee80211_rate *rts_cts_rate;
rts_cts_rate = ieee80211_get_rts_cts_rate(dev->wl->hw, info);
@@ -372,14 +441,21 @@ int b43_generate_txhdr(struct b43_wldev *dev,
rts_rate_fb_ofdm = b43_is_ofdm_rate(rts_rate_fb);
if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
- struct ieee80211_cts *cts;
+ struct ieee80211_cts *uninitialized_var(cts);
- if (b43_is_old_txhdr_format(dev)) {
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
cts = (struct ieee80211_cts *)
- (txhdr->old_format.rts_frame);
- } else {
+ (txhdr->format_598.rts_frame);
+ break;
+ case B43_FW_HDR_351:
+ cts = (struct ieee80211_cts *)
+ (txhdr->format_351.rts_frame);
+ break;
+ case B43_FW_HDR_410:
cts = (struct ieee80211_cts *)
- (txhdr->new_format.rts_frame);
+ (txhdr->format_410.rts_frame);
+ break;
}
ieee80211_ctstoself_get(dev->wl->hw, info->control.vif,
fragment_data, fragment_len,
@@ -387,14 +463,21 @@ int b43_generate_txhdr(struct b43_wldev *dev,
mac_ctl |= B43_TXH_MAC_SENDCTS;
len = sizeof(struct ieee80211_cts);
} else {
- struct ieee80211_rts *rts;
+ struct ieee80211_rts *uninitialized_var(rts);
- if (b43_is_old_txhdr_format(dev)) {
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
rts = (struct ieee80211_rts *)
- (txhdr->old_format.rts_frame);
- } else {
+ (txhdr->format_598.rts_frame);
+ break;
+ case B43_FW_HDR_351:
+ rts = (struct ieee80211_rts *)
+ (txhdr->format_351.rts_frame);
+ break;
+ case B43_FW_HDR_410:
rts = (struct ieee80211_rts *)
- (txhdr->new_format.rts_frame);
+ (txhdr->format_410.rts_frame);
+ break;
}
ieee80211_rts_get(dev->wl->hw, info->control.vif,
fragment_data, fragment_len,
@@ -405,22 +488,36 @@ int b43_generate_txhdr(struct b43_wldev *dev,
len += FCS_LEN;
/* 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;
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
+ plcp = &txhdr->format_598.rts_plcp;
+ break;
+ case B43_FW_HDR_351:
+ plcp = &txhdr->format_351.rts_plcp;
+ break;
+ case B43_FW_HDR_410:
+ plcp = &txhdr->format_410.rts_plcp;
+ break;
+ }
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);
- if (b43_is_old_txhdr_format(dev)) {
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
hdr = (struct ieee80211_hdr *)
- (&txhdr->old_format.rts_frame);
- } else {
+ (&txhdr->format_598.rts_frame);
+ break;
+ case B43_FW_HDR_351:
+ hdr = (struct ieee80211_hdr *)
+ (&txhdr->format_351.rts_frame);
+ break;
+ case B43_FW_HDR_410:
hdr = (struct ieee80211_hdr *)
- (&txhdr->new_format.rts_frame);
+ (&txhdr->format_410.rts_frame);
+ break;
}
txhdr->rts_dur_fb = hdr->duration_id;
@@ -437,13 +534,35 @@ int b43_generate_txhdr(struct b43_wldev *dev,
extra_ft |= B43_TXH_EFT_RTSFB_OFDM;
else
extra_ft |= B43_TXH_EFT_RTSFB_CCK;
+
+ if (rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS &&
+ fill_phy_ctl1) {
+ txhdr->phy_ctl1_rts = cpu_to_le16(
+ b43_generate_tx_phy_ctl1(dev, rts_rate));
+ txhdr->phy_ctl1_rts_fb = cpu_to_le16(
+ b43_generate_tx_phy_ctl1(dev, rts_rate_fb));
+ }
}
/* Magic 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);
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
+ txhdr->format_598.cookie = cpu_to_le16(cookie);
+ break;
+ case B43_FW_HDR_351:
+ txhdr->format_351.cookie = cpu_to_le16(cookie);
+ break;
+ case B43_FW_HDR_410:
+ txhdr->format_410.cookie = cpu_to_le16(cookie);
+ break;
+ }
+
+ if (fill_phy_ctl1) {
+ txhdr->phy_ctl1 =
+ cpu_to_le16(b43_generate_tx_phy_ctl1(dev, rate));
+ txhdr->phy_ctl1_fb =
+ cpu_to_le16(b43_generate_tx_phy_ctl1(dev, rate_fb));
+ }
/* Apply the bitfields */
txhdr->mac_ctl = cpu_to_le32(mac_ctl);
@@ -474,7 +593,7 @@ static s8 b43_rssi_postprocess(struct b43_wldev *dev,
else
tmp -= 3;
} else {
- if (dev->dev->bus->sprom.
+ if (dev->dev->bus_sprom->
boardflags_lo & B43_BFL_RSSI) {
if (in_rssi > 63)
in_rssi = 63;
@@ -539,20 +658,31 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
struct ieee80211_hdr *wlhdr;
const struct b43_rxhdr_fw4 *rxhdr = _rxhdr;
__le16 fctl;
- u16 phystat0, phystat3, chanstat, mactime;
- u32 macstat;
+ u16 phystat0, phystat3;
+ u16 uninitialized_var(chanstat), uninitialized_var(mactime);
+ u32 uninitialized_var(macstat);
u16 chanid;
u16 phytype;
- int padding;
+ int padding, rate_idx;
memset(&status, 0, sizeof(status));
/* Get metadata about the frame from the header. */
phystat0 = le16_to_cpu(rxhdr->phy_status0);
phystat3 = le16_to_cpu(rxhdr->phy_status3);
- macstat = le32_to_cpu(rxhdr->mac_status);
- mactime = le16_to_cpu(rxhdr->mac_time);
- chanstat = le16_to_cpu(rxhdr->channel);
+ switch (dev->fw.hdr_format) {
+ case B43_FW_HDR_598:
+ macstat = le32_to_cpu(rxhdr->format_598.mac_status);
+ mactime = le16_to_cpu(rxhdr->format_598.mac_time);
+ chanstat = le16_to_cpu(rxhdr->format_598.channel);
+ break;
+ case B43_FW_HDR_410:
+ case B43_FW_HDR_351:
+ macstat = le32_to_cpu(rxhdr->format_351.mac_status);
+ mactime = le16_to_cpu(rxhdr->format_351.mac_time);
+ chanstat = le16_to_cpu(rxhdr->format_351.channel);
+ break;
+ }
phytype = chanstat & B43_RX_CHAN_PHYTYPE;
if (unlikely(macstat & B43_RX_MAC_FCSERR)) {
@@ -610,29 +740,43 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
}
/* Link quality statistics */
- if ((chanstat & B43_RX_CHAN_PHYTYPE) == B43_PHYTYPE_N) {
-// s8 rssi = max(rxhdr->power0, rxhdr->power1);
- //TODO: Find out what the rssi value is (dBm or percentage?)
- // and also find out what the maximum possible value is.
- // Fill status.ssi and status.signal fields.
- } else {
+ switch (chanstat & B43_RX_CHAN_PHYTYPE) {
+ case B43_PHYTYPE_HT:
+ /* TODO: is max the right choice? */
+ status.signal = max_t(__s8,
+ max(rxhdr->phy_ht_power0, rxhdr->phy_ht_power1),
+ rxhdr->phy_ht_power2);
+ break;
+ case B43_PHYTYPE_N:
+ /* Broadcom has code for min and avg, but always uses max */
+ if (rxhdr->power0 == 16 || rxhdr->power0 == 32)
+ status.signal = max(rxhdr->power1, rxhdr->power2);
+ else
+ status.signal = max(rxhdr->power0, rxhdr->power1);
+ break;
+ case B43_PHYTYPE_A:
+ case B43_PHYTYPE_B:
+ case B43_PHYTYPE_G:
+ case B43_PHYTYPE_LP:
status.signal = b43_rssi_postprocess(dev, rxhdr->jssi,
(phystat0 & B43_RX_PHYST0_OFDM),
(phystat0 & B43_RX_PHYST0_GAINCTL),
(phystat3 & B43_RX_PHYST3_TRSTATE));
+ break;
}
if (phystat0 & B43_RX_PHYST0_OFDM)
- status.rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
+ rate_idx = b43_plcp_get_bitrate_idx_ofdm(plcp,
phytype == B43_PHYTYPE_A);
else
- status.rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
- if (unlikely(status.rate_idx == -1)) {
+ rate_idx = b43_plcp_get_bitrate_idx_cck(plcp);
+ if (unlikely(rate_idx == -1)) {
/* PLCP seems to be corrupted.
* Drop the frame, if we are not interested in corrupted frames. */
if (!(dev->wl->filter_flags & FIF_PLCPFAIL))
goto drop;
}
+ status.rate_idx = rate_idx;
status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
/*
@@ -652,7 +796,7 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
status.mactime += mactime;
if (low_mactime_now <= mactime)
status.mactime -= 0x10000;
- status.flag |= RX_FLAG_TSFT;
+ status.flag |= RX_FLAG_MACTIME_START;
}
chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT;
@@ -662,25 +806,30 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
B43_WARN_ON(1);
/* FIXME: We don't really know which value the "chanid" contains.
* So the following assignment might be wrong. */
- status.freq = b43_channel_to_freq_5ghz(chanid);
+ status.freq =
+ ieee80211_channel_to_frequency(chanid, status.band);
break;
case B43_PHYTYPE_G:
status.band = IEEE80211_BAND_2GHZ;
- /* chanid is the radio channel cookie value as used
- * to tune the radio. */
- status.freq = chanid + 2400;
+ /* Somewhere between 478.104 and 508.1084 firmware for G-PHY
+ * has been modified to be compatible with N-PHY and others.
+ */
+ if (dev->fw.rev >= 508)
+ status.freq = ieee80211_channel_to_frequency(chanid, status.band);
+ else
+ status.freq = chanid + 2400;
break;
case B43_PHYTYPE_N:
case B43_PHYTYPE_LP:
+ case B43_PHYTYPE_HT:
/* chanid is the SHM channel cookie. Which is the plain
* channel number in b43. */
- if (chanstat & B43_RX_CHAN_5GHZ) {
+ if (chanstat & B43_RX_CHAN_5GHZ)
status.band = IEEE80211_BAND_5GHZ;
- status.freq = b43_freq_to_channel_5ghz(chanid);
- } else {
+ else
status.band = IEEE80211_BAND_2GHZ;
- status.freq = b43_freq_to_channel_2ghz(chanid);
- }
+ status.freq =
+ ieee80211_channel_to_frequency(chanid, status.band);
break;
default:
B43_WARN_ON(1);
@@ -695,7 +844,6 @@ void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
#endif
return;
drop:
- b43dbg(dev->wl, "RX: Packet dropped\n");
dev_kfree_skb_any(skb);
}
@@ -732,7 +880,7 @@ bool b43_fill_txstatus_report(struct b43_wldev *dev,
struct ieee80211_tx_info *report,
const struct b43_txstatus *status)
{
- bool frame_success = 1;
+ bool frame_success = true;
int retry_limit;
/* preserve the confiured retry limit before clearing the status
@@ -748,7 +896,7 @@ bool b43_fill_txstatus_report(struct b43_wldev *dev,
/* The frame was not ACKed... */
if (!(report->flags & IEEE80211_TX_CTL_NO_ACK)) {
/* ...but we expected an ACK. */
- frame_success = 0;
+ frame_success = false;
}
}
if (status->frame_count == 0) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-04 07:47:26 +0000