diff options
Diffstat (limited to 'drivers/net/wireless/p54/p54common.c')
| -rw-r--r-- | drivers/net/wireless/p54/p54common.c | 36 |
1 files changed, 24 insertions, 12 deletions
diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 6da98e6e6a9..fa61749b467 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -66,8 +66,7 @@ static struct ieee80211_supported_band band_2GHz = { .n_bitrates = ARRAY_SIZE(p54_rates), }; - -void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) +int p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) { struct p54_common *priv = dev->priv; struct bootrec_exp_if *exp_if; @@ -79,7 +78,7 @@ void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) int i; if (priv->rx_start) - return; + return 0; while (data < end_data && *data) data++; @@ -117,11 +116,22 @@ void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) if (strnlen((unsigned char*)bootrec->data, 24) < 24) fw_version = (unsigned char*)bootrec->data; break; - case BR_CODE_DESCR: - priv->rx_start = le32_to_cpu(((__le32 *)bootrec->data)[1]); + case BR_CODE_DESCR: { + struct bootrec_desc *desc = + (struct bootrec_desc *)bootrec->data; + priv->rx_start = le32_to_cpu(desc->rx_start); /* FIXME add sanity checking */ - priv->rx_end = le32_to_cpu(((__le32 *)bootrec->data)[2]) - 0x3500; + priv->rx_end = le32_to_cpu(desc->rx_end) - 0x3500; + priv->headroom = desc->headroom; + priv->tailroom = desc->tailroom; + if (bootrec->len == 11) + priv->rx_mtu = (size_t) le16_to_cpu( + (__le16)bootrec->data[10]); + else + priv->rx_mtu = (size_t) + 0x620 - priv->tx_hdr_len; break; + } case BR_CODE_EXPOSED_IF: exp_if = (struct bootrec_exp_if *) bootrec->data; for (i = 0; i < (len * sizeof(*exp_if) / 4); i++) @@ -152,6 +162,8 @@ void p54_parse_firmware(struct ieee80211_hw *dev, const struct firmware *fw) priv->tx_stats[7].limit = 1; dev->queues = 4; } + + return 0; } EXPORT_SYMBOL_GPL(p54_parse_firmware); @@ -428,7 +440,7 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) struct p54_control_hdr *hdr = (struct p54_control_hdr *) skb->data; struct p54_frame_sent_hdr *payload = (struct p54_frame_sent_hdr *) hdr->data; struct sk_buff *entry = (struct sk_buff *) priv->tx_queue.next; - u32 addr = le32_to_cpu(hdr->req_id) - 0x70; + u32 addr = le32_to_cpu(hdr->req_id) - priv->headroom; struct memrecord *range = NULL; u32 freed = 0; u32 last_addr = priv->rx_start; @@ -550,7 +562,7 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, u32 target_addr = priv->rx_start; unsigned long flags; unsigned int left; - len = (len + 0x170 + 3) & ~0x3; /* 0x70 headroom, 0x100 tailroom */ + len = (len + priv->headroom + priv->tailroom + 3) & ~0x3; spin_lock_irqsave(&priv->tx_queue.lock, flags); left = skb_queue_len(&priv->tx_queue); @@ -585,13 +597,14 @@ static void p54_assign_address(struct ieee80211_hw *dev, struct sk_buff *skb, range->start_addr = target_addr; range->end_addr = target_addr + len; __skb_queue_after(&priv->tx_queue, target_skb, skb); - if (largest_hole < IEEE80211_MAX_RTS_THRESHOLD + 0x170 + + if (largest_hole < priv->rx_mtu + priv->headroom + + priv->tailroom + sizeof(struct p54_control_hdr)) ieee80211_stop_queues(dev); } spin_unlock_irqrestore(&priv->tx_queue.lock, flags); - data->req_id = cpu_to_le32(target_addr + 0x70); + data->req_id = cpu_to_le32(target_addr + priv->headroom); } static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) @@ -704,7 +717,7 @@ static int p54_set_filter(struct ieee80211_hw *dev, u16 filter_type, filter->antenna = antenna; filter->magic3 = cpu_to_le32(magic3); filter->rx_addr = cpu_to_le32(priv->rx_end); - filter->max_rx = cpu_to_le16(0x0620); /* FIXME: for usb ver 1.. maybe */ + filter->max_rx = cpu_to_le16(priv->rx_mtu); filter->rxhw = priv->rxhw; filter->magic8 = cpu_to_le16(magic8); filter->magic9 = cpu_to_le16(magic9); @@ -1084,7 +1097,6 @@ struct ieee80211_hw *p54_init_common(size_t priv_data_len) priv->tx_stats[3].limit = 1; priv->tx_stats[4].limit = 5; dev->queues = 1; - dev->extra_tx_headroom = sizeof(struct p54_control_hdr) + 4 + sizeof(struct p54_tx_control_allocdata); |