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path: root/drivers/net/wireless/wl12xx/wl1271_tx.c
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Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_tx.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_tx.c71
1 files changed, 56 insertions, 15 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_tx.c b/drivers/net/wireless/wl12xx/wl1271_tx.c
index 00af065c77c2..811e739d05bf 100644
--- a/drivers/net/wireless/wl12xx/wl1271_tx.c
+++ b/drivers/net/wireless/wl12xx/wl1271_tx.c
@@ -26,6 +26,7 @@
#include "wl1271.h"
#include "wl1271_spi.h"
+#include "wl1271_io.h"
#include "wl1271_reg.h"
#include "wl1271_ps.h"
#include "wl1271_tx.h"
@@ -87,7 +88,7 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
u32 extra, struct ieee80211_tx_info *control)
{
struct wl1271_tx_hw_descr *desc;
- int pad;
+ int pad, ac;
u16 tx_attr;
desc = (struct wl1271_tx_hw_descr *) skb->data;
@@ -107,9 +108,11 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
/* configure the tx attributes */
tx_attr = wl->session_counter << TX_HW_ATTR_OFST_SESSION_COUNTER;
- /* FIXME: do we know the packet priority? can we identify mgmt
- packets, and use max prio for them at least? */
- desc->tid = 0;
+
+ /* queue */
+ ac = wl1271_tx_get_queue(skb_get_queue_mapping(skb));
+ desc->tid = wl1271_tx_ac_to_tid(ac);
+
desc->aid = TX_HW_DEFAULT_AID;
desc->reserved = 0;
@@ -121,6 +124,11 @@ static int wl1271_tx_fill_hdr(struct wl1271 *wl, struct sk_buff *skb,
pad = pad - skb->len;
tx_attr |= pad << TX_HW_ATTR_OFST_LAST_WORD_PAD;
+ /* if the packets are destined for AP (have a STA entry) send them
+ with AP rate policies, otherwise use default basic rates */
+ if (control->control.sta)
+ tx_attr |= ACX_TX_AP_FULL_RATE << TX_HW_ATTR_OFST_RATE_POLICY;
+
desc->tx_attr = cpu_to_le16(tx_attr);
wl1271_debug(DEBUG_TX, "tx_fill_hdr: pad: %d", pad);
@@ -158,11 +166,11 @@ static int wl1271_tx_send_packet(struct wl1271 *wl, struct sk_buff *skb,
len = WL1271_TX_ALIGN(skb->len);
/* perform a fixed address block write with the packet */
- wl1271_spi_write(wl, WL1271_SLV_MEM_DATA, skb->data, len, true);
+ wl1271_write(wl, WL1271_SLV_MEM_DATA, skb->data, len, true);
/* write packet new counter into the write access register */
wl->tx_packets_count++;
- wl1271_spi_write32(wl, WL1271_HOST_WR_ACCESS, wl->tx_packets_count);
+ wl1271_write32(wl, WL1271_HOST_WR_ACCESS, wl->tx_packets_count);
desc = (struct wl1271_tx_hw_descr *) skb->data;
wl1271_debug(DEBUG_TX, "tx id %u skb 0x%p payload %u (%u words)",
@@ -196,6 +204,7 @@ static int wl1271_tx_frame(struct wl1271 *wl, struct sk_buff *skb)
ret = wl1271_cmd_set_default_wep_key(wl, idx);
if (ret < 0)
return ret;
+ wl->default_key = idx;
}
}
@@ -214,18 +223,50 @@ static int wl1271_tx_frame(struct wl1271 *wl, struct sk_buff *skb)
return ret;
}
+static u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set)
+{
+ struct ieee80211_supported_band *band;
+ u32 enabled_rates = 0;
+ int bit;
+
+ band = wl->hw->wiphy->bands[wl->band];
+ for (bit = 0; bit < band->n_bitrates; bit++) {
+ if (rate_set & 0x1)
+ enabled_rates |= band->bitrates[bit].hw_value;
+ rate_set >>= 1;
+ }
+
+ return enabled_rates;
+}
+
void wl1271_tx_work(struct work_struct *work)
{
struct wl1271 *wl = container_of(work, struct wl1271, tx_work);
struct sk_buff *skb;
bool woken_up = false;
+ u32 sta_rates = 0;
int ret;
+ /* check if the rates supported by the AP have changed */
+ if (unlikely(test_and_clear_bit(WL1271_FLAG_STA_RATES_CHANGED,
+ &wl->flags))) {
+ unsigned long flags;
+ spin_lock_irqsave(&wl->wl_lock, flags);
+ sta_rates = wl->sta_rate_set;
+ spin_unlock_irqrestore(&wl->wl_lock, flags);
+ }
+
mutex_lock(&wl->mutex);
if (unlikely(wl->state == WL1271_STATE_OFF))
goto out;
+ /* if rates have changed, re-configure the rate policy */
+ if (unlikely(sta_rates)) {
+ wl->rate_set = wl1271_tx_enabled_rates_get(wl, sta_rates);
+ wl1271_acx_rate_policies(wl);
+ }
+
while ((skb = skb_dequeue(&wl->tx_queue))) {
if (!woken_up) {
ret = wl1271_ps_elp_wakeup(wl, false);
@@ -240,18 +281,18 @@ void wl1271_tx_work(struct work_struct *work)
wl1271_debug(DEBUG_TX, "tx_work: fw buffer full, "
"stop queues");
ieee80211_stop_queues(wl->hw);
- wl->tx_queue_stopped = true;
+ set_bit(WL1271_FLAG_TX_QUEUE_STOPPED, &wl->flags);
skb_queue_head(&wl->tx_queue, skb);
goto out;
} else if (ret < 0) {
dev_kfree_skb(skb);
goto out;
- } else if (wl->tx_queue_stopped) {
+ } else if (test_and_clear_bit(WL1271_FLAG_TX_QUEUE_STOPPED,
+ &wl->flags)) {
/* firmware buffer has space, restart queues */
wl1271_debug(DEBUG_TX,
"complete_packet: waking queues");
ieee80211_wake_queues(wl->hw);
- wl->tx_queue_stopped = false;
}
}
@@ -335,8 +376,8 @@ void wl1271_tx_complete(struct wl1271 *wl, u32 count)
wl1271_debug(DEBUG_TX, "tx_complete received, packets: %d", count);
/* read the tx results from the chipset */
- wl1271_spi_read(wl, le32_to_cpu(memmap->tx_result),
- wl->tx_res_if, sizeof(*wl->tx_res_if), false);
+ wl1271_read(wl, le32_to_cpu(memmap->tx_result),
+ wl->tx_res_if, sizeof(*wl->tx_res_if), false);
/* verify that the result buffer is not getting overrun */
if (count > TX_HW_RESULT_QUEUE_LEN) {
@@ -357,10 +398,10 @@ void wl1271_tx_complete(struct wl1271 *wl, u32 count)
}
/* write host counter to chipset (to ack) */
- wl1271_spi_write32(wl, le32_to_cpu(memmap->tx_result) +
- offsetof(struct wl1271_tx_hw_res_if,
- tx_result_host_counter),
- le32_to_cpu(wl->tx_res_if->tx_result_fw_counter));
+ wl1271_write32(wl, le32_to_cpu(memmap->tx_result) +
+ offsetof(struct wl1271_tx_hw_res_if,
+ tx_result_host_counter),
+ le32_to_cpu(wl->tx_res_if->tx_result_fw_counter));
}
/* caller must hold wl->mutex */
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-25 08:40:41 +0000