ath9k_hw: add a new API for setting tx descriptors

Instead of using lots of different functions with long argument lists,
pull all the necessary information from one struct. This makes the code
easier to read and eliminates the need for copying data between multiple
linked descriptors.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 39 insertions, 1 deletions

diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index 2a523709ca9c..ca71bb4ae916 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -263,7 +263,11 @@ struct ath_desc {
 #define ATH9K_TXDESC_VMF		0x0100
 #define ATH9K_TXDESC_FRAG_IS_ON 	0x0200
 #define ATH9K_TXDESC_LOWRXCHAIN		0x0400
-#define ATH9K_TXDESC_LDPC		0x00010000
+#define ATH9K_TXDESC_LDPC		0x0800
+#define ATH9K_TXDESC_CLRDMASK		0x1000
+
+#define ATH9K_TXDESC_PAPRD		0x70000
+#define ATH9K_TXDESC_PAPRD_S		16
 
 #define ATH9K_RXDESC_INTREQ		0x0020
 
@@ -660,6 +664,13 @@ struct ath9k_11n_rate_series {
 	u32 RateFlags;
 };
 
+enum aggr_type {
+	AGGR_BUF_NONE,
+	AGGR_BUF_FIRST,
+	AGGR_BUF_MIDDLE,
+	AGGR_BUF_LAST,
+};
+
 enum ath9k_key_type {
 	ATH9K_KEY_TYPE_CLEAR,
 	ATH9K_KEY_TYPE_WEP,
@@ -667,6 +678,33 @@ enum ath9k_key_type {
 	ATH9K_KEY_TYPE_TKIP,
 };
 
+struct ath_tx_info {
+	u8 qcu;
+
+	bool is_first;
+	bool is_last;
+
+	enum aggr_type aggr;
+	u8 ndelim;
+	u16 aggr_len;
+
+	dma_addr_t link;
+	int pkt_len;
+	u32 flags;
+
+	dma_addr_t buf_addr[4];
+	int buf_len[4];
+
+	struct ath9k_11n_rate_series rates[4];
+	u8 rtscts_rate;
+	bool dur_update;
+
+	enum ath9k_pkt_type type;
+	enum ath9k_key_type keytype;
+	u8 keyix;
+	u8 txpower;
+};
+
 struct ath_hw;
 struct ath9k_channel;
 enum ath9k_int;