diff options
Diffstat (limited to 'drivers/net/wireless/rtl8187_dev.c')
-rw-r--r-- | drivers/net/wireless/rtl8187_dev.c | 133 |
1 files changed, 85 insertions, 48 deletions
diff --git a/drivers/net/wireless/rtl8187_dev.c b/drivers/net/wireless/rtl8187_dev.c index 69eb013..e1399d0 100644 --- a/drivers/net/wireless/rtl8187_dev.c +++ b/drivers/net/wireless/rtl8187_dev.c @@ -155,21 +155,19 @@ void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) rtl818x_iowrite8(priv, &priv->map->PHY[2], (data >> 16) & 0xFF); rtl818x_iowrite8(priv, &priv->map->PHY[1], (data >> 8) & 0xFF); rtl818x_iowrite8(priv, &priv->map->PHY[0], data & 0xFF); - - msleep(1); } static void rtl8187_tx_cb(struct urb *urb) { struct sk_buff *skb = (struct sk_buff *)urb->context; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hw *hw = info->driver_data[0]; + struct ieee80211_hw *hw = info->rate_driver_data[0]; struct rtl8187_priv *priv = hw->priv; - usb_free_urb(info->driver_data[1]); + usb_free_urb(info->rate_driver_data[1]); skb_pull(skb, priv->is_rtl8187b ? sizeof(struct rtl8187b_tx_hdr) : sizeof(struct rtl8187_tx_hdr)); - memset(&info->status, 0, sizeof(info->status)); + ieee80211_tx_info_clear_status(info); info->flags |= IEEE80211_TX_STAT_ACK; ieee80211_tx_status_irqsafe(hw, skb); } @@ -178,7 +176,6 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) { struct rtl8187_priv *priv = dev->priv; struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); - struct ieee80211_hdr *ieee80211hdr = (struct ieee80211_hdr *)skb->data; unsigned int ep; void *buf; struct urb *urb; @@ -198,12 +195,12 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) flags |= ieee80211_get_tx_rate(dev, info)->hw_value << 24; if (ieee80211_has_morefrags(((struct ieee80211_hdr *)skb->data)->frame_control)) flags |= RTL818X_TX_DESC_FLAG_MOREFRAG; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { + if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_RTS_CTS) { flags |= RTL818X_TX_DESC_FLAG_RTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; rts_dur = ieee80211_rts_duration(dev, priv->vif, skb->len, info); - } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { + } else if (info->control.rates[0].flags & IEEE80211_TX_RC_USE_CTS_PROTECT) { flags |= RTL818X_TX_DESC_FLAG_CTS; flags |= ieee80211_get_rts_cts_rate(dev, info)->hw_value << 19; } @@ -214,7 +211,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->flags = cpu_to_le32(flags); hdr->len = 0; hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); buf = hdr; ep = 2; @@ -232,7 +229,7 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) memset(hdr, 0, sizeof(*hdr)); hdr->flags = cpu_to_le32(flags); hdr->rts_duration = rts_dur; - hdr->retry = cpu_to_le32(info->control.retry_limit << 8); + hdr->retry = cpu_to_le32((info->control.rates[0].count - 1) << 8); hdr->tx_duration = ieee80211_generic_frame_duration(dev, priv->vif, skb->len, txrate); @@ -244,22 +241,8 @@ static int rtl8187_tx(struct ieee80211_hw *dev, struct sk_buff *skb) ep = epmap[skb_get_queue_mapping(skb)]; } - /* FIXME: The sequence that follows is needed for this driver to - * work with mac80211 since "mac80211: fix TX sequence numbers". - * As with the temporary code in rt2x00, changes will be needed - * to get proper sequence numbers on beacons. In addition, this - * patch places the sequence number in the hardware state, which - * limits us to a single virtual state. - */ - if (info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ) { - if (info->flags & IEEE80211_TX_CTL_FIRST_FRAGMENT) - priv->seqno += 0x10; - ieee80211hdr->seq_ctrl &= cpu_to_le16(IEEE80211_SCTL_FRAG); - ieee80211hdr->seq_ctrl |= cpu_to_le16(priv->seqno); - } - - info->driver_data[0] = dev; - info->driver_data[1] = urb; + info->rate_driver_data[0] = dev; + info->rate_driver_data[1] = urb; usb_fill_bulk_urb(urb, priv->udev, usb_sndbulkpipe(priv->udev, ep), buf, skb->len, rtl8187_tx_cb, skb); @@ -687,7 +670,7 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev) rtl818x_iowrite16(priv, &priv->map->RFPinsOutput, 0x0480); rtl818x_iowrite16(priv, &priv->map->RFPinsSelect, 0x2488); rtl818x_iowrite16(priv, &priv->map->RFPinsEnable, 0x1FFF); - msleep(1100); + msleep(100); priv->rf->init(dev); @@ -876,9 +859,10 @@ static void rtl8187_remove_interface(struct ieee80211_hw *dev, mutex_unlock(&priv->conf_mutex); } -static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) +static int rtl8187_config(struct ieee80211_hw *dev, u32 changed) { struct rtl8187_priv *priv = dev->priv; + struct ieee80211_conf *conf = &dev->conf; u32 reg; mutex_lock(&priv->conf_mutex); @@ -889,27 +873,10 @@ static int rtl8187_config(struct ieee80211_hw *dev, struct ieee80211_conf *conf) */ rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg | RTL818X_TX_CONF_LOOPBACK_MAC); - msleep(10); priv->rf->set_chan(dev, conf); msleep(10); rtl818x_iowrite32(priv, &priv->map->TX_CONF, reg); - if (!priv->is_rtl8187b) { - rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); - - if (conf->flags & IEEE80211_CONF_SHORT_SLOT_TIME) { - rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9); - rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14); - rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14); - rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73); - } else { - rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14); - rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24); - rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24); - rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5); - } - } - rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2); rtl818x_iowrite16(priv, &priv->map->ATIMTR_INTERVAL, 100); rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100); @@ -944,6 +911,72 @@ static int rtl8187_config_interface(struct ieee80211_hw *dev, return 0; } +static void rtl8187_conf_erp(struct rtl8187_priv *priv, bool use_short_slot, + bool use_short_preamble) +{ + if (priv->is_rtl8187b) { + u8 difs, eifs, slot_time; + u16 ack_timeout; + + if (use_short_slot) { + slot_time = 0x9; + difs = 0x1c; + eifs = 0x53; + } else { + slot_time = 0x14; + difs = 0x32; + eifs = 0x5b; + } + rtl818x_iowrite8(priv, &priv->map->SIFS, 0xa); + rtl818x_iowrite8(priv, &priv->map->SLOT, slot_time); + rtl818x_iowrite8(priv, &priv->map->DIFS, difs); + + /* + * BRSR+1 on 8187B is in fact EIFS register + * Value in units of 4 us + */ + rtl818x_iowrite8(priv, (u8 *)&priv->map->BRSR + 1, eifs); + + /* + * For 8187B, CARRIER_SENSE_COUNTER is in fact ack timeout + * register. In units of 4 us like eifs register + * ack_timeout = ack duration + plcp + difs + preamble + */ + ack_timeout = 112 + 48 + difs; + if (use_short_preamble) + ack_timeout += 72; + else + ack_timeout += 144; + rtl818x_iowrite8(priv, &priv->map->CARRIER_SENSE_COUNTER, + DIV_ROUND_UP(ack_timeout, 4)); + } else { + rtl818x_iowrite8(priv, &priv->map->SIFS, 0x22); + if (use_short_slot) { + rtl818x_iowrite8(priv, &priv->map->SLOT, 0x9); + rtl818x_iowrite8(priv, &priv->map->DIFS, 0x14); + rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x14); + rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0x73); + } else { + rtl818x_iowrite8(priv, &priv->map->SLOT, 0x14); + rtl818x_iowrite8(priv, &priv->map->DIFS, 0x24); + rtl818x_iowrite8(priv, &priv->map->EIFS, 91 - 0x24); + rtl818x_iowrite8(priv, &priv->map->CW_VAL, 0xa5); + } + } +} + +static void rtl8187_bss_info_changed(struct ieee80211_hw *dev, + struct ieee80211_vif *vif, + struct ieee80211_bss_conf *info, + u32 changed) +{ + struct rtl8187_priv *priv = dev->priv; + + if (changed & (BSS_CHANGED_ERP_SLOT | BSS_CHANGED_ERP_PREAMBLE)) + rtl8187_conf_erp(priv, info->use_short_slot, + info->use_short_preamble); +} + static void rtl8187_configure_filter(struct ieee80211_hw *dev, unsigned int changed_flags, unsigned int *total_flags, @@ -984,6 +1017,7 @@ static const struct ieee80211_ops rtl8187_ops = { .remove_interface = rtl8187_remove_interface, .config = rtl8187_config, .config_interface = rtl8187_config_interface, + .bss_info_changed = rtl8187_bss_info_changed, .configure_filter = rtl8187_configure_filter, }; @@ -1029,7 +1063,6 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, const char *chip_name; u16 txpwr, reg; int err, i; - DECLARE_MAC_BUF(mac); dev = ieee80211_alloc_hw(sizeof(*priv), &rtl8187_ops); if (!dev) { @@ -1190,6 +1223,10 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, dev->max_signal = 65; } + /* + * XXX: Once this driver supports anything that requires + * beacons it must implement IEEE80211_TX_CTL_ASSIGN_SEQ. + */ dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION); if ((id->driver_info == DEVICE_RTL8187) && priv->is_rtl8187b) @@ -1212,8 +1249,8 @@ static int __devinit rtl8187_probe(struct usb_interface *intf, } mutex_init(&priv->conf_mutex); - printk(KERN_INFO "%s: hwaddr %s, %s V%d + %s\n", - wiphy_name(dev->wiphy), print_mac(mac, dev->wiphy->perm_addr), + printk(KERN_INFO "%s: hwaddr %pM, %s V%d + %s\n", + wiphy_name(dev->wiphy), dev->wiphy->perm_addr, chip_name, priv->asic_rev, priv->rf->name); return 0; |