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authorSujith Manoharan <Sujith.Manoharan@atheros.com>2011-04-13 11:24:31 +0530
committerJohn W. Linville <linville@tuxdriver.com>2011-04-13 15:22:53 -0400
commit40dc9e4b86963b77918f1b8fa02b98c1e420a7e1 (patch)
tree6ea7c12df61b0e0c96a502aabbb9441443637229 /drivers/net/wireless/ath/ath9k/htc.h
parente723f3900c3b23feb427672c6ccfe5d4243d2c2d (diff)
ath9k_htc: Use SKB's private area for TX parameters
For all packets sent through the USB_WLAN_TX_PIPE endpoint, the private area of the SKB's tx_info can be used to store driver-specific information. For packets sent through USB_REG_OUT_PIPE, this will not make a difference since they are routed through a separate routine that doesn't access the private region. This would help in situations where TX information is required in the URB callback. Signed-off-by: Sujith Manoharan <Sujith.Manoharan@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/ath/ath9k/htc.h')
-rw-r--r--drivers/net/wireless/ath/ath9k/htc.h14
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/ath9k/htc.h b/drivers/net/wireless/ath/ath9k/htc.h
index 0e48fa0efa7..2eabfe4ad26 100644
--- a/drivers/net/wireless/ath/ath9k/htc.h
+++ b/drivers/net/wireless/ath/ath9k/htc.h
@@ -67,8 +67,11 @@ enum htc_opmode {
};
#define ATH9K_HTC_HDRSPACE sizeof(struct htc_frame_hdr)
-#define ATH9K_HTC_AMPDU 1
+
+#define ATH9K_HTC_AMPDU 1
#define ATH9K_HTC_NORMAL 2
+#define ATH9K_HTC_BEACON 3
+#define ATH9K_HTC_MGMT 4
#define ATH9K_HTC_TX_CTSONLY 0x1
#define ATH9K_HTC_TX_RTSCTS 0x2
@@ -288,6 +291,15 @@ struct ath9k_htc_tx_ctl {
u8 type; /* ATH9K_HTC_* */
};
+static inline struct ath9k_htc_tx_ctl *HTC_SKB_CB(struct sk_buff *skb)
+{
+ struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
+
+ BUILD_BUG_ON(sizeof(struct ath9k_htc_tx_ctl) >
+ IEEE80211_TX_INFO_DRIVER_DATA_SIZE);
+ return (struct ath9k_htc_tx_ctl *) &tx_info->driver_data;
+}
+
#ifdef CONFIG_ATH9K_HTC_DEBUGFS
#define TX_STAT_INC(c) (hif_dev->htc_handle->drv_priv->debug.tx_stats.c++)