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path: root/drivers/net/wireless/b43legacy/xmit.c
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Diffstat (limited to 'drivers/net/wireless/b43legacy/xmit.c')
-rw-r--r--drivers/net/wireless/b43legacy/xmit.c664
1 files changed, 664 insertions, 0 deletions
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
new file mode 100644
index 000000000..34bf3f0b7
--- /dev/null
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -0,0 +1,664 @@
+/*
+
+ Broadcom B43legacy wireless driver
+
+ Transmission (TX/RX) related functions.
+
+ Copyright (C) 2005 Martin Langer <martin-langer@gmx.de>
+ Copyright (C) 2005 Stefano Brivio <stefano.brivio@polimi.it>
+ 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>
+ Copyright (C) 2007 Larry Finger <Larry.Finger@lwfinger.net>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; see the file COPYING. If not, write to
+ the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
+ Boston, MA 02110-1301, USA.
+
+*/
+
+#include <net/dst.h>
+
+#include "xmit.h"
+#include "phy.h"
+#include "dma.h"
+#include "pio.h"
+
+
+/* Extract the bitrate out of a CCK PLCP header. */
+static u8 b43legacy_plcp_get_bitrate_idx_cck(struct b43legacy_plcp_hdr6 *plcp)
+{
+ switch (plcp->raw[0]) {
+ case 0x0A:
+ return 0;
+ case 0x14:
+ return 1;
+ case 0x37:
+ return 2;
+ case 0x6E:
+ return 3;
+ }
+ B43legacy_BUG_ON(1);
+ return -1;
+}
+
+/* Extract the bitrate out of an OFDM PLCP header. */
+static u8 b43legacy_plcp_get_bitrate_idx_ofdm(struct b43legacy_plcp_hdr6 *plcp,
+ bool aphy)
+{
+ int base = aphy ? 0 : 4;
+
+ switch (plcp->raw[0] & 0xF) {
+ case 0xB:
+ return base + 0;
+ case 0xF:
+ return base + 1;
+ case 0xA:
+ return base + 2;
+ case 0xE:
+ return base + 3;
+ case 0x9:
+ return base + 4;
+ case 0xD:
+ return base + 5;
+ case 0x8:
+ return base + 6;
+ case 0xC:
+ return base + 7;
+ }
+ B43legacy_BUG_ON(1);
+ return -1;
+}
+
+u8 b43legacy_plcp_get_ratecode_cck(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_CCK_RATE_1MB:
+ return 0x0A;
+ case B43legacy_CCK_RATE_2MB:
+ return 0x14;
+ case B43legacy_CCK_RATE_5MB:
+ return 0x37;
+ case B43legacy_CCK_RATE_11MB:
+ return 0x6E;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+u8 b43legacy_plcp_get_ratecode_ofdm(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_OFDM_RATE_6MB:
+ return 0xB;
+ case B43legacy_OFDM_RATE_9MB:
+ return 0xF;
+ case B43legacy_OFDM_RATE_12MB:
+ return 0xA;
+ case B43legacy_OFDM_RATE_18MB:
+ return 0xE;
+ case B43legacy_OFDM_RATE_24MB:
+ return 0x9;
+ case B43legacy_OFDM_RATE_36MB:
+ return 0xD;
+ case B43legacy_OFDM_RATE_48MB:
+ return 0x8;
+ case B43legacy_OFDM_RATE_54MB:
+ return 0xC;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+void b43legacy_generate_plcp_hdr(struct b43legacy_plcp_hdr4 *plcp,
+ const u16 octets, const u8 bitrate)
+{
+ __le32 *data = &(plcp->data);
+ __u8 *raw = plcp->raw;
+
+ if (b43legacy_is_ofdm_rate(bitrate)) {
+ u16 d;
+
+ d = b43legacy_plcp_get_ratecode_ofdm(bitrate);
+ B43legacy_WARN_ON(octets & 0xF000);
+ d |= (octets << 5);
+ *data = cpu_to_le32(d);
+ } else {
+ u32 plen;
+
+ plen = octets * 16 / bitrate;
+ if ((octets * 16 % bitrate) > 0) {
+ plen++;
+ if ((bitrate == B43legacy_CCK_RATE_11MB)
+ && ((octets * 8 % 11) < 4))
+ raw[1] = 0x84;
+ else
+ raw[1] = 0x04;
+ } else
+ raw[1] = 0x04;
+ *data |= cpu_to_le32(plen << 16);
+ raw[0] = b43legacy_plcp_get_ratecode_cck(bitrate);
+ }
+}
+
+static u8 b43legacy_calc_fallback_rate(u8 bitrate)
+{
+ switch (bitrate) {
+ case B43legacy_CCK_RATE_1MB:
+ return B43legacy_CCK_RATE_1MB;
+ case B43legacy_CCK_RATE_2MB:
+ return B43legacy_CCK_RATE_1MB;
+ case B43legacy_CCK_RATE_5MB:
+ return B43legacy_CCK_RATE_2MB;
+ case B43legacy_CCK_RATE_11MB:
+ return B43legacy_CCK_RATE_5MB;
+ case B43legacy_OFDM_RATE_6MB:
+ return B43legacy_CCK_RATE_5MB;
+ case B43legacy_OFDM_RATE_9MB:
+ return B43legacy_OFDM_RATE_6MB;
+ case B43legacy_OFDM_RATE_12MB:
+ return B43legacy_OFDM_RATE_9MB;
+ case B43legacy_OFDM_RATE_18MB:
+ return B43legacy_OFDM_RATE_12MB;
+ case B43legacy_OFDM_RATE_24MB:
+ return B43legacy_OFDM_RATE_18MB;
+ case B43legacy_OFDM_RATE_36MB:
+ return B43legacy_OFDM_RATE_24MB;
+ case B43legacy_OFDM_RATE_48MB:
+ return B43legacy_OFDM_RATE_36MB;
+ case B43legacy_OFDM_RATE_54MB:
+ return B43legacy_OFDM_RATE_48MB;
+ }
+ B43legacy_BUG_ON(1);
+ return 0;
+}
+
+static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
+ struct b43legacy_txhdr_fw3 *txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ struct ieee80211_tx_info *info,
+ u16 cookie)
+{
+ const struct ieee80211_hdr *wlhdr;
+ int use_encryption = !!info->control.hw_key;
+ u8 rate;
+ struct ieee80211_rate *rate_fb;
+ int rate_ofdm;
+ int rate_fb_ofdm;
+ unsigned int plcp_fragment_len;
+ u32 mac_ctl = 0;
+ u16 phy_ctl = 0;
+ struct ieee80211_rate *tx_rate;
+ struct ieee80211_tx_rate *rates;
+
+ wlhdr = (const struct ieee80211_hdr *)fragment_data;
+
+ memset(txhdr, 0, sizeof(*txhdr));
+
+ tx_rate = ieee80211_get_tx_rate(dev->wl->hw, info);
+
+ rate = tx_rate->hw_value;
+ rate_ofdm = b43legacy_is_ofdm_rate(rate);
+ rate_fb = ieee80211_get_alt_retry_rate(dev->wl->hw, info, 0) ? : tx_rate;
+ rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
+
+ txhdr->mac_frame_ctl = wlhdr->frame_control;
+ memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
+
+ /* Calculate duration for fallback rate */
+ if ((rate_fb->hw_value == rate) ||
+ (wlhdr->duration_id & cpu_to_le16(0x8000)) ||
+ (wlhdr->duration_id == cpu_to_le16(0))) {
+ /* If the fallback rate equals the normal rate or the
+ * dur_id field contains an AID, CFP magic or 0,
+ * use the original dur_id field. */
+ txhdr->dur_fb = wlhdr->duration_id;
+ } else {
+ txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
+ info->control.vif,
+ info->band,
+ fragment_len,
+ rate_fb);
+ }
+
+ plcp_fragment_len = fragment_len + FCS_LEN;
+ if (use_encryption) {
+ u8 key_idx = info->control.hw_key->hw_key_idx;
+ struct b43legacy_key *key;
+ int wlhdr_len;
+ size_t iv_len;
+
+ B43legacy_WARN_ON(key_idx >= dev->max_nr_keys);
+ key = &(dev->key[key_idx]);
+
+ if (key->enabled) {
+ /* Hardware appends ICV. */
+ plcp_fragment_len += info->control.hw_key->icv_len;
+
+ key_idx = b43legacy_kidx_to_fw(dev, key_idx);
+ mac_ctl |= (key_idx << B43legacy_TX4_MAC_KEYIDX_SHIFT) &
+ B43legacy_TX4_MAC_KEYIDX;
+ mac_ctl |= (key->algorithm <<
+ B43legacy_TX4_MAC_KEYALG_SHIFT) &
+ B43legacy_TX4_MAC_KEYALG;
+ wlhdr_len = ieee80211_hdrlen(wlhdr->frame_control);
+ 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);
+ } else {
+ /* This key is invalid. This might only happen
+ * in a short timeframe after machine resume before
+ * we were able to reconfigure keys.
+ * Drop this packet completely. Do not transmit it
+ * unencrypted to avoid leaking information. */
+ return -ENOKEY;
+ }
+ }
+ b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
+ (&txhdr->plcp), plcp_fragment_len,
+ rate);
+ b43legacy_generate_plcp_hdr(&txhdr->plcp_fb, plcp_fragment_len,
+ rate_fb->hw_value);
+
+ /* PHY TX Control word */
+ if (rate_ofdm)
+ phy_ctl |= B43legacy_TX4_PHY_ENC_OFDM;
+ if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE)
+ phy_ctl |= B43legacy_TX4_PHY_SHORTPRMBL;
+ phy_ctl |= B43legacy_TX4_PHY_ANTLAST;
+
+ /* MAC control */
+ rates = info->control.rates;
+ if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
+ mac_ctl |= B43legacy_TX4_MAC_ACK;
+ if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ)
+ mac_ctl |= B43legacy_TX4_MAC_HWSEQ;
+ if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT)
+ mac_ctl |= B43legacy_TX4_MAC_STMSDU;
+ if (rate_fb_ofdm)
+ mac_ctl |= B43legacy_TX4_MAC_FALLBACKOFDM;
+
+ /* Overwrite rates[0].count to make the retry calculation
+ * in the tx status easier. need the actual retry limit to
+ * detect whether the fallback rate was used.
+ */
+ if ((rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) ||
+ (rates[0].count <= dev->wl->hw->conf.long_frame_max_tx_count)) {
+ rates[0].count = dev->wl->hw->conf.long_frame_max_tx_count;
+ mac_ctl |= B43legacy_TX4_MAC_LONGFRAME;
+ } else {
+ rates[0].count = dev->wl->hw->conf.short_frame_max_tx_count;
+ }
+
+ /* Generate the RTS or CTS-to-self frame */
+ 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;
+ int rts_rate;
+ int rts_rate_fb;
+ int rts_rate_fb_ofdm;
+
+ rts_rate = ieee80211_get_rts_cts_rate(dev->wl->hw, info)->hw_value;
+ rts_rate_fb = b43legacy_calc_fallback_rate(rts_rate);
+ rts_rate_fb_ofdm = b43legacy_is_ofdm_rate(rts_rate_fb);
+ if (rts_rate_fb_ofdm)
+ mac_ctl |= B43legacy_TX4_MAC_CTSFALLBACKOFDM;
+
+ if (rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) {
+ ieee80211_ctstoself_get(dev->wl->hw,
+ info->control.vif,
+ fragment_data,
+ fragment_len, info,
+ (struct ieee80211_cts *)
+ (txhdr->rts_frame));
+ mac_ctl |= B43legacy_TX4_MAC_SENDCTS;
+ len = sizeof(struct ieee80211_cts);
+ } else {
+ ieee80211_rts_get(dev->wl->hw,
+ info->control.vif,
+ fragment_data, fragment_len, info,
+ (struct ieee80211_rts *)
+ (txhdr->rts_frame));
+ mac_ctl |= B43legacy_TX4_MAC_SENDRTS;
+ len = sizeof(struct ieee80211_rts);
+ }
+ len += FCS_LEN;
+ b43legacy_generate_plcp_hdr((struct b43legacy_plcp_hdr4 *)
+ (&txhdr->rts_plcp),
+ len, rts_rate);
+ b43legacy_generate_plcp_hdr(&txhdr->rts_plcp_fb,
+ len, rts_rate_fb);
+ hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
+ txhdr->rts_dur_fb = hdr->duration_id;
+ }
+
+ /* Magic cookie */
+ txhdr->cookie = cpu_to_le16(cookie);
+
+ /* Apply the bitfields */
+ txhdr->mac_ctl = cpu_to_le32(mac_ctl);
+ txhdr->phy_ctl = cpu_to_le16(phy_ctl);
+
+ return 0;
+}
+
+int b43legacy_generate_txhdr(struct b43legacy_wldev *dev,
+ u8 *txhdr,
+ const unsigned char *fragment_data,
+ unsigned int fragment_len,
+ struct ieee80211_tx_info *info,
+ u16 cookie)
+{
+ return generate_txhdr_fw3(dev, (struct b43legacy_txhdr_fw3 *)txhdr,
+ fragment_data, fragment_len,
+ info, cookie);
+}
+
+static s8 b43legacy_rssi_postprocess(struct b43legacy_wldev *dev,
+ u8 in_rssi, int ofdm,
+ int adjust_2053, int adjust_2050)
+{
+ struct b43legacy_phy *phy = &dev->phy;
+ s32 tmp;
+
+ switch (phy->radio_ver) {
+ case 0x2050:
+ if (ofdm) {
+ tmp = in_rssi;
+ if (tmp > 127)
+ tmp -= 256;
+ tmp *= 73;
+ tmp /= 64;
+ if (adjust_2050)
+ tmp += 25;
+ else
+ tmp -= 3;
+ } else {
+ if (dev->dev->bus->sprom.boardflags_lo
+ & B43legacy_BFL_RSSI) {
+ if (in_rssi > 63)
+ in_rssi = 63;
+ tmp = phy->nrssi_lt[in_rssi];
+ tmp = 31 - tmp;
+ tmp *= -131;
+ tmp /= 128;
+ tmp -= 57;
+ } else {
+ tmp = in_rssi;
+ tmp = 31 - tmp;
+ tmp *= -149;
+ tmp /= 128;
+ tmp -= 68;
+ }
+ if (phy->type == B43legacy_PHYTYPE_G &&
+ adjust_2050)
+ tmp += 25;
+ }
+ break;
+ case 0x2060:
+ if (in_rssi > 127)
+ tmp = in_rssi - 256;
+ else
+ tmp = in_rssi;
+ break;
+ default:
+ tmp = in_rssi;
+ tmp -= 11;
+ tmp *= 103;
+ tmp /= 64;
+ if (adjust_2053)
+ tmp -= 109;
+ else
+ tmp -= 83;
+ }
+
+ return (s8)tmp;
+}
+
+void b43legacy_rx(struct b43legacy_wldev *dev,
+ struct sk_buff *skb,
+ const void *_rxhdr)
+{
+ struct ieee80211_rx_status status;
+ struct b43legacy_plcp_hdr6 *plcp;
+ struct ieee80211_hdr *wlhdr;
+ const struct b43legacy_rxhdr_fw3 *rxhdr = _rxhdr;
+ __le16 fctl;
+ u16 phystat0;
+ u16 phystat3;
+ u16 chanstat;
+ u16 mactime;
+ u32 macstat;
+ u16 chanid;
+ u8 jssi;
+ int padding;
+
+ 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);
+ jssi = rxhdr->jssi;
+ macstat = le16_to_cpu(rxhdr->mac_status);
+ mactime = le16_to_cpu(rxhdr->mac_time);
+ chanstat = le16_to_cpu(rxhdr->channel);
+
+ if (macstat & B43legacy_RX_MAC_FCSERR)
+ dev->wl->ieee_stats.dot11FCSErrorCount++;
+
+ /* Skip PLCP and padding */
+ padding = (macstat & B43legacy_RX_MAC_PADDING) ? 2 : 0;
+ if (unlikely(skb->len < (sizeof(struct b43legacy_plcp_hdr6) +
+ padding))) {
+ b43legacydbg(dev->wl, "RX: Packet size underrun (1)\n");
+ goto drop;
+ }
+ plcp = (struct b43legacy_plcp_hdr6 *)(skb->data + padding);
+ skb_pull(skb, sizeof(struct b43legacy_plcp_hdr6) + padding);
+ /* The skb contains the Wireless Header + payload data now */
+ if (unlikely(skb->len < (2+2+6/*minimum hdr*/ + FCS_LEN))) {
+ b43legacydbg(dev->wl, "RX: Packet size underrun (2)\n");
+ goto drop;
+ }
+ wlhdr = (struct ieee80211_hdr *)(skb->data);
+ fctl = wlhdr->frame_control;
+
+ if ((macstat & B43legacy_RX_MAC_DEC) &&
+ !(macstat & B43legacy_RX_MAC_DECERR)) {
+ unsigned int keyidx;
+ int wlhdr_len;
+ int iv_len;
+ int icv_len;
+
+ keyidx = ((macstat & B43legacy_RX_MAC_KEYIDX)
+ >> B43legacy_RX_MAC_KEYIDX_SHIFT);
+ /* We must adjust the key index here. We want the "physical"
+ * key index, but the ucode passed it slightly different.
+ */
+ keyidx = b43legacy_kidx_to_raw(dev, keyidx);
+ B43legacy_WARN_ON(keyidx >= dev->max_nr_keys);
+
+ if (dev->key[keyidx].algorithm != B43legacy_SEC_ALGO_NONE) {
+ /* Remove PROTECTED flag to mark it as decrypted. */
+ B43legacy_WARN_ON(!ieee80211_has_protected(fctl));
+ fctl &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED);
+ wlhdr->frame_control = fctl;
+
+ wlhdr_len = ieee80211_hdrlen(fctl);
+ if (unlikely(skb->len < (wlhdr_len + 3))) {
+ b43legacydbg(dev->wl, "RX: Packet size"
+ " underrun3\n");
+ goto drop;
+ }
+ if (skb->data[wlhdr_len + 3] & (1 << 5)) {
+ /* The Ext-IV Bit is set in the "KeyID"
+ * octet of the IV.
+ */
+ iv_len = 8;
+ icv_len = 8;
+ } else {
+ iv_len = 4;
+ icv_len = 4;
+ }
+ if (unlikely(skb->len < (wlhdr_len + iv_len +
+ icv_len))) {
+ b43legacydbg(dev->wl, "RX: Packet size"
+ " underrun4\n");
+ goto drop;
+ }
+ /* Remove the IV */
+ memmove(skb->data + iv_len, skb->data, wlhdr_len);
+ skb_pull(skb, iv_len);
+ /* Remove the ICV */
+ skb_trim(skb, skb->len - icv_len);
+
+ status.flag |= RX_FLAG_DECRYPTED;
+ }
+ }
+
+ status.signal = b43legacy_rssi_postprocess(dev, jssi,
+ (phystat0 & B43legacy_RX_PHYST0_OFDM),
+ (phystat0 & B43legacy_RX_PHYST0_GAINCTL),
+ (phystat3 & B43legacy_RX_PHYST3_TRSTATE));
+ /* change to support A PHY */
+ if (phystat0 & B43legacy_RX_PHYST0_OFDM)
+ status.rate_idx = b43legacy_plcp_get_bitrate_idx_ofdm(plcp, false);
+ else
+ status.rate_idx = b43legacy_plcp_get_bitrate_idx_cck(plcp);
+ status.antenna = !!(phystat0 & B43legacy_RX_PHYST0_ANT);
+
+ /*
+ * All frames on monitor interfaces and beacons always need a full
+ * 64-bit timestamp. Monitor interfaces need it for diagnostic
+ * purposes and beacons for IBSS merging.
+ * 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 (ieee80211_is_beacon(fctl) || dev->wl->radiotap_enabled) {
+ u16 low_mactime_now;
+
+ b43legacy_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_MACTIME_START;
+ }
+
+ chanid = (chanstat & B43legacy_RX_CHAN_ID) >>
+ B43legacy_RX_CHAN_ID_SHIFT;
+ switch (chanstat & B43legacy_RX_CHAN_PHYTYPE) {
+ case B43legacy_PHYTYPE_B:
+ case B43legacy_PHYTYPE_G:
+ status.band = IEEE80211_BAND_2GHZ;
+ status.freq = chanid + 2400;
+ break;
+ default:
+ b43legacywarn(dev->wl, "Unexpected value for chanstat (0x%X)\n",
+ chanstat);
+ }
+
+ memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
+ ieee80211_rx_irqsafe(dev->wl->hw, skb);
+
+ return;
+drop:
+ b43legacydbg(dev->wl, "RX: Packet dropped\n");
+ dev_kfree_skb_any(skb);
+}
+
+void b43legacy_handle_txstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_txstatus *status)
+{
+ b43legacy_debugfs_log_txstat(dev, status);
+
+ if (status->intermediate)
+ return;
+ if (status->for_ampdu)
+ return;
+ if (!status->acked)
+ dev->wl->ieee_stats.dot11ACKFailureCount++;
+ if (status->rts_count) {
+ if (status->rts_count == 0xF) /* FIXME */
+ dev->wl->ieee_stats.dot11RTSFailureCount++;
+ else
+ dev->wl->ieee_stats.dot11RTSSuccessCount++;
+ }
+
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_handle_txstatus(dev, status);
+ else
+ b43legacy_dma_handle_txstatus(dev, status);
+}
+
+/* Handle TX status report as received through DMA/PIO queues */
+void b43legacy_handle_hwtxstatus(struct b43legacy_wldev *dev,
+ const struct b43legacy_hwtxstatus *hw)
+{
+ struct b43legacy_txstatus status;
+ u8 tmp;
+
+ status.cookie = le16_to_cpu(hw->cookie);
+ status.seq = le16_to_cpu(hw->seq);
+ status.phy_stat = hw->phy_stat;
+ tmp = hw->count;
+ status.frame_count = (tmp >> 4);
+ status.rts_count = (tmp & 0x0F);
+ tmp = hw->flags << 1;
+ status.supp_reason = ((tmp & 0x1C) >> 2);
+ status.pm_indicated = !!(tmp & 0x80);
+ status.intermediate = !!(tmp & 0x40);
+ status.for_ampdu = !!(tmp & 0x20);
+ status.acked = !!(tmp & 0x02);
+
+ b43legacy_handle_txstatus(dev, &status);
+}
+
+/* Stop any TX operation on the device (suspend the hardware queues) */
+void b43legacy_tx_suspend(struct b43legacy_wldev *dev)
+{
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_freeze_txqueues(dev);
+ else
+ b43legacy_dma_tx_suspend(dev);
+}
+
+/* Resume any TX operation on the device (resume the hardware queues) */
+void b43legacy_tx_resume(struct b43legacy_wldev *dev)
+{
+ if (b43legacy_using_pio(dev))
+ b43legacy_pio_thaw_txqueues(dev);
+ else
+ b43legacy_dma_tx_resume(dev);
+}
+
+/* Initialize the QoS parameters */
+void b43legacy_qos_init(struct b43legacy_wldev *dev)
+{
+ /* FIXME: This function must probably be called from the mac80211
+ * config callback. */
+return;
+
+ b43legacy_hf_write(dev, b43legacy_hf_read(dev) | B43legacy_HF_EDCF);
+ /* FIXME kill magic */
+ b43legacy_write16(dev, 0x688,
+ b43legacy_read16(dev, 0x688) | 0x4);
+
+
+ /*TODO: We might need some stack support here to get the values. */
+}
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-05 18:05:17 +0000