[B43]: add mac80211-based driver for modern BCM43xx devices
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
new file mode 100644
index 0000000..e6174b6
--- /dev/null
+++ b/drivers/net/wireless/b43/xmit.c
@@ -0,0 +1,648 @@
+/*
+
+ Broadcom B43 wireless driver
+
+ 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, 2006 Michael Buesch <mb@bu3sch.de>
+ Copyright (C) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ Copyright (C) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+
+ 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 "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)
+{
+ switch (plcp->raw[0]) {
+ case 0x0A:
+ return B43_CCK_RATE_1MB;
+ case 0x14:
+ return B43_CCK_RATE_2MB;
+ case 0x37:
+ return B43_CCK_RATE_5MB;
+ case 0x6E:
+ return B43_CCK_RATE_11MB;
+ }
+ B43_WARN_ON(1);
+ return 0;
+}
+
+/* Extract the bitrate out of an OFDM PLCP header. */
+static u8 b43_plcp_get_bitrate_ofdm(struct b43_plcp_hdr6 *plcp)
+{
+ switch (plcp->raw[0] & 0xF) {
+ case 0xB:
+ return B43_OFDM_RATE_6MB;
+ case 0xF:
+ return B43_OFDM_RATE_9MB;
+ case 0xA:
+ return B43_OFDM_RATE_12MB;
+ case 0xE:
+ return B43_OFDM_RATE_18MB;
+ case 0x9:
+ return B43_OFDM_RATE_24MB;
+ case 0xD:
+ return B43_OFDM_RATE_36MB;
+ case 0x8:
+ return B43_OFDM_RATE_48MB;
+ case 0xC:
+ return B43_OFDM_RATE_54MB;
+ }
+ B43_WARN_ON(1);
+ return 0;
+}
+
+u8 b43_plcp_get_ratecode_cck(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43_CCK_RATE_1MB:
+ return 0x0A;
+ case B43_CCK_RATE_2MB:
+ return 0x14;
+ case B43_CCK_RATE_5MB:
+ return 0x37;
+ case B43_CCK_RATE_11MB:
+ return 0x6E;
+ }
+ B43_WARN_ON(1);
+ return 0;
+}
+
+u8 b43_plcp_get_ratecode_ofdm(const u8 bitrate)
+{
+ switch (bitrate) {
+ case B43_OFDM_RATE_6MB:
+ return 0xB;
+ case B43_OFDM_RATE_9MB:
+ return 0xF;
+ case B43_OFDM_RATE_12MB:
+ return 0xA;
+ case B43_OFDM_RATE_18MB:
+ return 0xE;
+ case B43_OFDM_RATE_24MB:
+ return 0x9;
+ case B43_OFDM_RATE_36MB:
+ return 0xD;
+ case B43_OFDM_RATE_48MB:
+ return 0x8;
+ case B43_OFDM_RATE_54MB:
+ return 0xC;
+ }
+ B43_WARN_ON(1);
+ return 0;
+}
+
+void b43_generate_plcp_hdr(struct b43_plcp_hdr4 *plcp,
+ const u16 octets, const u8 bitrate)
+{
+ __le32 *data = &(plcp->data);
+ __u8 *raw = plcp->raw;
+
+ if (b43_is_ofdm_rate(bitrate)) {
+ *data = b43_plcp_get_ratecode_ofdm(bitrate);
+ B43_WARN_ON(octets & 0xF000);
+ *data |= (octets << 5);
+ *data = cpu_to_le32(*data);
+ } else {
+ u32 plen;
+
+ plen = octets * 16 / bitrate;
+ if ((octets * 16 % bitrate) > 0) {
+ plen++;
+ if ((bitrate == B43_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] = b43_plcp_get_ratecode_cck(bitrate);
+ }
+}
+
+static u8 b43_calc_fallback_rate(u8 bitrate)
+{
+ switch (bitrate) {
+ case B43_CCK_RATE_1MB:
+ return B43_CCK_RATE_1MB;
+ case B43_CCK_RATE_2MB:
+ return B43_CCK_RATE_1MB;
+ case B43_CCK_RATE_5MB:
+ return B43_CCK_RATE_2MB;
+ case B43_CCK_RATE_11MB:
+ return B43_CCK_RATE_5MB;
+ case B43_OFDM_RATE_6MB:
+ return B43_CCK_RATE_5MB;
+ case B43_OFDM_RATE_9MB:
+ return B43_OFDM_RATE_6MB;
+ case B43_OFDM_RATE_12MB:
+ return B43_OFDM_RATE_9MB;
+ case B43_OFDM_RATE_18MB:
+ return B43_OFDM_RATE_12MB;
+ case B43_OFDM_RATE_24MB:
+ return B43_OFDM_RATE_18MB;
+ case B43_OFDM_RATE_36MB:
+ return B43_OFDM_RATE_24MB;
+ case B43_OFDM_RATE_48MB:
+ return B43_OFDM_RATE_36MB;
+ case B43_OFDM_RATE_54MB:
+ return B43_OFDM_RATE_48MB;
+ }
+ B43_WARN_ON(1);
+ 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)
+{
+ const struct b43_phy *phy = &dev->phy;
+ const struct ieee80211_hdr *wlhdr =
+ (const struct ieee80211_hdr *)fragment_data;
+ int use_encryption = (!(txctl->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT));
+ u16 fctl = le16_to_cpu(wlhdr->frame_control);
+ u8 rate, rate_fb;
+ int rate_ofdm, rate_fb_ofdm;
+ unsigned int plcp_fragment_len;
+ u32 mac_ctl = 0;
+ u16 phy_ctl = 0;
+ u8 extra_ft = 0;
+
+ memset(txhdr, 0, sizeof(*txhdr));
+
+ rate = txctl->tx_rate;
+ rate_ofdm = b43_is_ofdm_rate(rate);
+ rate_fb = (txctl->alt_retry_rate == -1) ? rate : txctl->alt_retry_rate;
+ rate_fb_ofdm = b43_is_ofdm_rate(rate_fb);
+
+ if (rate_ofdm)
+ txhdr->phy_rate = b43_plcp_get_ratecode_ofdm(rate);
+ else
+ txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate);
+ txhdr->mac_frame_ctl = wlhdr->frame_control;
+ memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
+
+ /* Calculate duration for fallback rate */
+ if ((rate_fb == 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 {
+ int fbrate_base100kbps = B43_RATE_TO_BASE100KBPS(rate_fb);
+ txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
+ dev->wl->if_id,
+ fragment_len,
+ fbrate_base100kbps);
+ }
+
+ plcp_fragment_len = fragment_len + FCS_LEN;
+ if (use_encryption) {
+ u8 key_idx = (u16) (txctl->key_idx);
+ struct b43_key *key;
+ int wlhdr_len;
+ size_t iv_len;
+
+ B43_WARN_ON(key_idx >= dev->max_nr_keys);
+ key = &(dev->key[key_idx]);
+ B43_WARN_ON(!key->keyconf);
+
+ /* Hardware appends ICV. */
+ 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;
+ 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);
+ 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;
+
+ /* Set channel radio code. Note that the micrcode ORs 0x100 to
+ * this value before comparing it to the value in SHM, if this
+ * is a 5Ghz packet.
+ */
+ txhdr->chan_radio_code = phy->channel;
+
+ /* PHY TX Control word */
+ if (rate_ofdm)
+ phy_ctl |= B43_TX4_PHY_OFDM;
+ if (dev->short_preamble)
+ phy_ctl |= B43_TX4_PHY_SHORTPRMBL;
+ switch (txctl->antenna_sel_tx) {
+ case 0:
+ phy_ctl |= B43_TX4_PHY_ANTLAST;
+ break;
+ case 1:
+ phy_ctl |= B43_TX4_PHY_ANT0;
+ break;
+ case 2:
+ phy_ctl |= B43_TX4_PHY_ANT1;
+ break;
+ default:
+ B43_WARN_ON(1);
+ }
+
+ /* MAC control */
+ if (!(txctl->flags & IEEE80211_TXCTL_NO_ACK))
+ mac_ctl |= B43_TX4_MAC_ACK;
+ if (!(((fctl & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL) &&
+ ((fctl & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)))
+ mac_ctl |= B43_TX4_MAC_HWSEQ;
+ if (txctl->flags & IEEE80211_TXCTL_FIRST_FRAGMENT)
+ mac_ctl |= B43_TX4_MAC_STMSDU;
+ if (phy->type == B43_PHYTYPE_A)
+ mac_ctl |= B43_TX4_MAC_5GHZ;
+
+ /* Generate the RTS or CTS-to-self frame */
+ if ((txctl->flags & IEEE80211_TXCTL_USE_RTS_CTS) ||
+ (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT)) {
+ unsigned int len;
+ struct ieee80211_hdr *hdr;
+ int rts_rate, rts_rate_fb;
+ int rts_rate_ofdm, rts_rate_fb_ofdm;
+
+ rts_rate = txctl->rts_cts_rate;
+ rts_rate_ofdm = b43_is_ofdm_rate(rts_rate);
+ rts_rate_fb = b43_calc_fallback_rate(rts_rate);
+ 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,
+ fragment_data, fragment_len,
+ txctl,
+ (struct ieee80211_cts *)(txhdr->
+ rts_frame));
+ mac_ctl |= B43_TX4_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;
+ 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),
+ len, rts_rate_fb);
+ hdr = (struct ieee80211_hdr *)(&txhdr->rts_frame);
+ txhdr->rts_dur_fb = hdr->duration_id;
+ if (rts_rate_ofdm) {
+ extra_ft |= B43_TX4_EFT_RTSOFDM;
+ txhdr->phy_rate_rts =
+ b43_plcp_get_ratecode_ofdm(rts_rate);
+ } else
+ 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;
+ }
+
+ /* 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);
+ 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,
+ u8 in_rssi, int ofdm,
+ int adjust_2053, int adjust_2050)
+{
+ struct b43_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.r1.
+ boardflags_lo & B43_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 == B43_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;
+}
+
+//TODO
+#if 0
+static s8 b43_rssinoise_postprocess(struct b43_wldev *dev, u8 in_rssi)
+{
+ struct b43_phy *phy = &dev->phy;
+ s8 ret;
+
+ if (phy->type == B43_PHYTYPE_A) {
+ //TODO: Incomplete specs.
+ ret = 0;
+ } else
+ ret = b43_rssi_postprocess(dev, in_rssi, 0, 1, 1);
+
+ return ret;
+}
+#endif
+
+void b43_rx(struct b43_wldev *dev, struct sk_buff *skb, const void *_rxhdr)
+{
+ struct ieee80211_rx_status status;
+ struct b43_plcp_hdr6 *plcp;
+ struct ieee80211_hdr *wlhdr;
+ const struct b43_rxhdr_fw4 *rxhdr = _rxhdr;
+ u16 fctl;
+ u16 phystat0, phystat3, chanstat, 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 = le32_to_cpu(rxhdr->mac_status);
+ mactime = le16_to_cpu(rxhdr->mac_time);
+ chanstat = le16_to_cpu(rxhdr->channel);
+
+ if (macstat & B43_RX_MAC_FCSERR)
+ dev->wl->ieee_stats.dot11FCSErrorCount++;
+ if (macstat & B43_RX_MAC_DECERR) {
+ /* Decryption with the given key failed.
+ * Drop the packet. We also won't be able to decrypt it with
+ * the key in software. */
+ goto drop;
+ }
+
+ /* Skip PLCP and padding */
+ padding = (macstat & B43_RX_MAC_PADDING) ? 2 : 0;
+ if (unlikely(skb->len < (sizeof(struct b43_plcp_hdr6) + padding))) {
+ b43dbg(dev->wl, "RX: Packet size underrun (1)\n");
+ goto drop;
+ }
+ plcp = (struct b43_plcp_hdr6 *)(skb->data + padding);
+ skb_pull(skb, sizeof(struct b43_plcp_hdr6) + padding);
+ /* The skb contains the Wireless Header + payload data now */
+ if (unlikely(skb->len < (2 + 2 + 6 /*minimum hdr */ + FCS_LEN))) {
+ b43dbg(dev->wl, "RX: Packet size underrun (2)\n");
+ goto drop;
+ }
+ 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;
+ int wlhdr_len;
+
+ keyidx = ((macstat & B43_RX_MAC_KEYIDX)
+ >> B43_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 = b43_kidx_to_raw(dev, keyidx);
+ B43_WARN_ON(keyidx >= dev->max_nr_keys);
+
+ if (dev->key[keyidx].algorithm != B43_SEC_ALGO_NONE) {
+ wlhdr_len = ieee80211_get_hdrlen(fctl);
+ if (unlikely(skb->len < (wlhdr_len + 3))) {
+ b43dbg(dev->wl,
+ "RX: Packet size underrun (3)\n");
+ goto drop;
+ }
+ status.flag |= RX_FLAG_DECRYPTED;
+ }
+ }
+
+ status.ssi = b43_rssi_postprocess(dev, jssi,
+ (phystat0 & B43_RX_PHYST0_OFDM),
+ (phystat0 & B43_RX_PHYST0_GAINCTL),
+ (phystat3 & B43_RX_PHYST3_TRSTATE));
+ status.noise = dev->stats.link_noise;
+ /* the next line looks wrong, but is what mac80211 wants */
+ status.signal = (jssi * 100) / B43_RX_MAX_SSI;
+ if (phystat0 & B43_RX_PHYST0_OFDM)
+ status.rate = b43_plcp_get_bitrate_ofdm(plcp);
+ else
+ status.rate = b43_plcp_get_bitrate_cck(plcp);
+ status.antenna = !!(phystat0 & B43_RX_PHYST0_ANT);
+ status.mactime = mactime;
+
+ chanid = (chanstat & B43_RX_CHAN_ID) >> B43_RX_CHAN_ID_SHIFT;
+ switch (chanstat & B43_RX_CHAN_PHYTYPE) {
+ case B43_PHYTYPE_A:
+ status.phymode = MODE_IEEE80211A;
+ status.freq = chanid;
+ status.channel = b43_freq_to_channel_a(chanid);
+ break;
+ case B43_PHYTYPE_B:
+ status.phymode = MODE_IEEE80211B;
+ status.freq = chanid + 2400;
+ status.channel = b43_freq_to_channel_bg(chanid + 2400);
+ break;
+ case B43_PHYTYPE_G:
+ status.phymode = MODE_IEEE80211G;
+ status.freq = chanid + 2400;
+ status.channel = b43_freq_to_channel_bg(chanid + 2400);
+ break;
+ default:
+ B43_WARN_ON(1);
+ }
+
+ dev->stats.last_rx = jiffies;
+ ieee80211_rx_irqsafe(dev->wl->hw, skb, &status);
+
+ return;
+drop:
+ b43dbg(dev->wl, "RX: Packet dropped\n");
+ dev_kfree_skb_any(skb);
+}
+
+void b43_handle_txstatus(struct b43_wldev *dev,
+ const struct b43_txstatus *status)
+{
+ b43_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 (b43_using_pio(dev))
+ b43_pio_handle_txstatus(dev, status);
+ else
+ b43_dma_handle_txstatus(dev, status);
+}
+
+/* Handle TX status report as received through DMA/PIO queues */
+void b43_handle_hwtxstatus(struct b43_wldev *dev,
+ const struct b43_hwtxstatus *hw)
+{
+ struct b43_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;
+ status.supp_reason = ((tmp & 0x1C) >> 2);
+ status.pm_indicated = !!(tmp & 0x80);
+ status.intermediate = !!(tmp & 0x40);
+ status.for_ampdu = !!(tmp & 0x20);
+ status.acked = !!(tmp & 0x02);
+
+ b43_handle_txstatus(dev, &status);
+}
+
+/* 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);
+}
+
+/* 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);
+}
+
+#if 0
+static void upload_qos_parms(struct b43_wldev *dev,
+ const u16 * parms, u16 offset)
+{
+ int i;
+
+ for (i = 0; i < B43_NR_QOSPARMS; i++) {
+ b43_shm_write16(dev, B43_SHM_SHARED,
+ offset + (i * 2), parms[i]);
+ }
+}
+#endif
+
+/* Initialize the QoS parameters */
+void b43_qos_init(struct b43_wldev *dev)
+{
+ /* FIXME: This function must probably be called from the mac80211
+ * config callback. */
+ return;
+
+ b43_hf_write(dev, b43_hf_read(dev) | B43_HF_EDCF);
+ //FIXME kill magic
+ b43_write16(dev, 0x688, b43_read16(dev, 0x688) | 0x4);
+
+ /*TODO: We might need some stack support here to get the values. */
+}