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path: root/drivers/net/wireless/rtl818x
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Diffstat (limited to 'drivers/net/wireless/rtl818x')
-rw-r--r--drivers/net/wireless/rtl818x/rtl8187.h4
-rw-r--r--drivers/net/wireless/rtl818x/rtl8187_dev.c86
2 files changed, 66 insertions, 24 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8187.h b/drivers/net/wireless/rtl818x/rtl8187.h
index 3b1e1c2aad2..9718f61809c 100644
--- a/drivers/net/wireless/rtl818x/rtl8187.h
+++ b/drivers/net/wireless/rtl818x/rtl8187.h
@@ -100,6 +100,8 @@ struct rtl8187_priv {
struct usb_device *udev;
u32 rx_conf;
struct usb_anchor anchored;
+ struct delayed_work work;
+ struct ieee80211_hw *dev;
u16 txpwr_base;
u8 asic_rev;
u8 is_rtl8187b;
@@ -117,7 +119,7 @@ struct rtl8187_priv {
struct {
__le64 buf;
struct sk_buff_head queue;
- } b_tx_status;
+ } b_tx_status; /* This queue is used by both -b and non-b devices */
};
void rtl8187_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data);
diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index f4747a1134b..fd81884b9c7 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -189,25 +189,33 @@ static void rtl8187_tx_cb(struct urb *urb)
sizeof(struct rtl8187_tx_hdr));
ieee80211_tx_info_clear_status(info);
- if (!urb->status &&
- !(info->flags & IEEE80211_TX_CTL_NO_ACK) &&
- priv->is_rtl8187b) {
- skb_queue_tail(&priv->b_tx_status.queue, skb);
+ if (!(urb->status) && !(info->flags & IEEE80211_TX_CTL_NO_ACK)) {
+ if (priv->is_rtl8187b) {
+ skb_queue_tail(&priv->b_tx_status.queue, skb);
- /* queue is "full", discard last items */
- while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
- struct sk_buff *old_skb;
+ /* queue is "full", discard last items */
+ while (skb_queue_len(&priv->b_tx_status.queue) > 5) {
+ struct sk_buff *old_skb;
- dev_dbg(&priv->udev->dev,
- "transmit status queue full\n");
+ dev_dbg(&priv->udev->dev,
+ "transmit status queue full\n");
- old_skb = skb_dequeue(&priv->b_tx_status.queue);
- ieee80211_tx_status_irqsafe(hw, old_skb);
- }
- } else {
- if (!(info->flags & IEEE80211_TX_CTL_NO_ACK) && !urb->status)
+ old_skb = skb_dequeue(&priv->b_tx_status.queue);
+ ieee80211_tx_status_irqsafe(hw, old_skb);
+ }
+ return;
+ } else {
info->flags |= IEEE80211_TX_STAT_ACK;
+ }
+ }
+ if (priv->is_rtl8187b)
ieee80211_tx_status_irqsafe(hw, skb);
+ else {
+ /* Retry information for the RTI8187 is only available by
+ * reading a register in the device. We are in interrupt mode
+ * here, thus queue the skb and finish on a work queue. */
+ skb_queue_tail(&priv->b_tx_status.queue, skb);
+ queue_delayed_work(hw->workqueue, &priv->work, 0);
}
}
@@ -403,7 +411,7 @@ static int rtl8187_init_urbs(struct ieee80211_hw *dev)
struct rtl8187_rx_info *info;
int ret = 0;
- while (skb_queue_len(&priv->rx_queue) < 8) {
+ while (skb_queue_len(&priv->rx_queue) < 16) {
skb = __dev_alloc_skb(RTL8187_MAX_RX, GFP_KERNEL);
if (!skb) {
ret = -ENOMEM;
@@ -657,7 +665,7 @@ static int rtl8187_init_hw(struct ieee80211_hw *dev)
rtl818x_iowrite32(priv, &priv->map->INT_TIMEOUT, 0);
rtl818x_iowrite8(priv, &priv->map->WPA_CONF, 0);
- rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0x81);
+ rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, 0);
// TODO: set RESP_RATE and BRSR properly
rtl818x_iowrite8(priv, &priv->map->RESP_RATE, (8 << 4) | 0);
@@ -777,9 +785,6 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev)
rtl818x_iowrite8(priv, &priv->map->TX_AGC_CTL, reg);
rtl818x_iowrite16_idx(priv, (__le16 *)0xFFE0, 0x0FFF, 1);
- reg = rtl818x_ioread8(priv, &priv->map->RATE_FALLBACK);
- reg |= RTL818X_RATE_FALLBACK_ENABLE;
- rtl818x_iowrite8(priv, &priv->map->RATE_FALLBACK, reg);
rtl818x_iowrite16(priv, &priv->map->BEACON_INTERVAL, 100);
rtl818x_iowrite16(priv, &priv->map->ATIM_WND, 2);
@@ -867,6 +872,34 @@ static int rtl8187b_init_hw(struct ieee80211_hw *dev)
return 0;
}
+static void rtl8187_work(struct work_struct *work)
+{
+ /* The RTL8187 returns the retry count through register 0xFFFA. In
+ * addition, it appears to be a cumulative retry count, not the
+ * value for the current TX packet. When multiple TX entries are
+ * queued, the retry count will be valid for the last one in the queue.
+ * The "error" should not matter for purposes of rate setting. */
+ struct rtl8187_priv *priv = container_of(work, struct rtl8187_priv,
+ work.work);
+ struct ieee80211_tx_info *info;
+ struct ieee80211_hw *dev = priv->dev;
+ static u16 retry;
+ u16 tmp;
+
+ mutex_lock(&priv->conf_mutex);
+ tmp = rtl818x_ioread16(priv, (__le16 *)0xFFFA);
+ while (skb_queue_len(&priv->b_tx_status.queue) > 0) {
+ struct sk_buff *old_skb;
+
+ old_skb = skb_dequeue(&priv->b_tx_status.queue);
+ info = IEEE80211_SKB_CB(old_skb);
+ info->status.rates[0].count = tmp - retry + 1;
+ ieee80211_tx_status_irqsafe(dev, old_skb);
+ }
+ retry = tmp;
+ mutex_unlock(&priv->conf_mutex);
+}
+
static int rtl8187_start(struct ieee80211_hw *dev)
{
struct rtl8187_priv *priv = dev->priv;
@@ -881,6 +914,7 @@ static int rtl8187_start(struct ieee80211_hw *dev)
mutex_lock(&priv->conf_mutex);
init_usb_anchor(&priv->anchored);
+ priv->dev = dev;
if (priv->is_rtl8187b) {
reg = RTL818X_RX_CONF_MGMT |
@@ -948,6 +982,7 @@ static int rtl8187_start(struct ieee80211_hw *dev)
reg |= RTL818X_CMD_TX_ENABLE;
reg |= RTL818X_CMD_RX_ENABLE;
rtl818x_iowrite8(priv, &priv->map->CMD, reg);
+ INIT_DELAYED_WORK(&priv->work, rtl8187_work);
mutex_unlock(&priv->conf_mutex);
return 0;
@@ -978,6 +1013,8 @@ static void rtl8187_stop(struct ieee80211_hw *dev)
dev_kfree_skb_any(skb);
usb_kill_anchored_urbs(&priv->anchored);
+ if (!priv->is_rtl8187b)
+ cancel_delayed_work_sync(&priv->work);
mutex_unlock(&priv->conf_mutex);
}
@@ -986,19 +1023,21 @@ static int rtl8187_add_interface(struct ieee80211_hw *dev,
{
struct rtl8187_priv *priv = dev->priv;
int i;
+ int ret = -EOPNOTSUPP;
+ mutex_lock(&priv->conf_mutex);
if (priv->mode != NL80211_IFTYPE_MONITOR)
- return -EOPNOTSUPP;
+ goto exit;
switch (conf->type) {
case NL80211_IFTYPE_STATION:
priv->mode = conf->type;
break;
default:
- return -EOPNOTSUPP;
+ goto exit;
}
- mutex_lock(&priv->conf_mutex);
+ ret = 0;
priv->vif = conf->vif;
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_CONFIG);
@@ -1007,8 +1046,9 @@ static int rtl8187_add_interface(struct ieee80211_hw *dev,
((u8 *)conf->mac_addr)[i]);
rtl818x_iowrite8(priv, &priv->map->EEPROM_CMD, RTL818X_EEPROM_CMD_NORMAL);
+exit:
mutex_unlock(&priv->conf_mutex);
- return 0;
+ return ret;
}
static void rtl8187_remove_interface(struct ieee80211_hw *dev,
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 02:20:27 +0000