1 files changed, 150 insertions, 0 deletions

diff --git a/drivers/net/wireless/wl12xx/tx.h b/drivers/net/wireless/wl12xx/tx.h
new file mode 100644
index 000000000000..903e5dc69b7a
--- /dev/null
+++ b/drivers/net/wireless/wl12xx/tx.h
@@ -0,0 +1,150 @@
+/*
+ * This file is part of wl1271
+ *
+ * Copyright (C) 1998-2009 Texas Instruments. All rights reserved.
+ * Copyright (C) 2009 Nokia Corporation
+ *
+ * Contact: Luciano Coelho <luciano.coelho@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __TX_H__
+#define __TX_H__
+
+#define TX_HW_BLOCK_SPARE                2
+#define TX_HW_BLOCK_SIZE                 252
+
+#define TX_HW_MGMT_PKT_LIFETIME_TU       2000
+/* The chipset reference driver states, that the "aid" value 1
+ * is for infra-BSS, but is still always used */
+#define TX_HW_DEFAULT_AID                1
+
+#define TX_HW_ATTR_SAVE_RETRIES          BIT(0)
+#define TX_HW_ATTR_HEADER_PAD            BIT(1)
+#define TX_HW_ATTR_SESSION_COUNTER       (BIT(2) | BIT(3) | BIT(4))
+#define TX_HW_ATTR_RATE_POLICY           (BIT(5) | BIT(6) | BIT(7) | \
+                                          BIT(8) | BIT(9))
+#define TX_HW_ATTR_LAST_WORD_PAD         (BIT(10) | BIT(11))
+#define TX_HW_ATTR_TX_CMPLT_REQ          BIT(12)
+
+#define TX_HW_ATTR_OFST_SAVE_RETRIES     0
+#define TX_HW_ATTR_OFST_HEADER_PAD       1
+#define TX_HW_ATTR_OFST_SESSION_COUNTER  2
+#define TX_HW_ATTR_OFST_RATE_POLICY      5
+#define TX_HW_ATTR_OFST_LAST_WORD_PAD    10
+#define TX_HW_ATTR_OFST_TX_CMPLT_REQ     12
+
+#define TX_HW_RESULT_QUEUE_LEN           16
+#define TX_HW_RESULT_QUEUE_LEN_MASK      0xf
+
+#define WL1271_TX_ALIGN_TO 4
+#define WL1271_TX_ALIGN(len) (((len) + WL1271_TX_ALIGN_TO - 1) & \
+                             ~(WL1271_TX_ALIGN_TO - 1))
+#define WL1271_TKIP_IV_SPACE 4
+
+struct wl1271_tx_hw_descr {
+        /* Length of packet in words, including descriptor+header+data */
+        __le16 length;
+        /* Number of extra memory blocks to allocate for this packet in
+           addition to the number of blocks derived from the packet length */
+        u8 extra_mem_blocks;
+        /* Total number of memory blocks allocated by the host for this packet.
+           Must be equal or greater than the actual blocks number allocated by
+           HW!! */
+        u8 total_mem_blocks;
+        /* Device time (in us) when the packet arrived to the driver */
+        __le32 start_time;
+        /* Max delay in TUs until transmission. The last device time the
+           packet can be transmitted is: startTime+(1024*LifeTime) */
+        __le16 life_time;
+        /* Bitwise fields - see TX_ATTR... definitions above. */
+        __le16 tx_attr;
+        /* Packet identifier used also in the Tx-Result. */
+        u8 id;
+        /* The packet TID value (as User-Priority) */
+        u8 tid;
+        /* Identifier of the remote STA in IBSS, 1 in infra-BSS */
+        u8 aid;
+        u8 reserved;
+} __packed;
+
+enum wl1271_tx_hw_res_status {
+        TX_SUCCESS          = 0,
+        TX_HW_ERROR         = 1,
+        TX_DISABLED         = 2,
+        TX_RETRY_EXCEEDED   = 3,
+        TX_TIMEOUT          = 4,
+        TX_KEY_NOT_FOUND    = 5,
+        TX_PEER_NOT_FOUND   = 6,
+        TX_SESSION_MISMATCH = 7
+};
+
+struct wl1271_tx_hw_res_descr {
+        /* Packet Identifier - same value used in the Tx descriptor.*/
+        u8 id;
+        /* The status of the transmission, indicating success or one of
+           several possible reasons for failure. */
+        u8 status;
+        /* Total air access duration including all retrys and overheads.*/
+        __le16 medium_usage;
+        /* The time passed from host xfer to Tx-complete.*/
+        __le32 fw_handling_time;
+        /* Total media delay
+           (from 1st EDCA AIFS counter until TX Complete). */
+        __le32 medium_delay;
+        /* LS-byte of last TKIP seq-num (saved per AC for recovery). */
+        u8 lsb_security_sequence_number;
+        /* Retry count - number of transmissions without successful ACK.*/
+        u8 ack_failures;
+        /* The rate that succeeded getting ACK
+           (Valid only if status=SUCCESS). */
+        u8 rate_class_index;
+        /* for 4-byte alignment. */
+        u8 spare;
+} __packed;
+
+struct wl1271_tx_hw_res_if {
+        __le32 tx_result_fw_counter;
+        __le32 tx_result_host_counter;
+        struct wl1271_tx_hw_res_descr tx_results_queue[TX_HW_RESULT_QUEUE_LEN];
+} __packed;
+
+static inline int wl1271_tx_get_queue(int queue)
+{
+        switch (queue) {
+        case 0:
+                return CONF_TX_AC_VO;
+        case 1:
+                return CONF_TX_AC_VI;
+        case 2:
+                return CONF_TX_AC_BE;
+        case 3:
+                return CONF_TX_AC_BK;
+        default:
+                return CONF_TX_AC_BE;
+        }
+}
+
+void wl1271_tx_work(struct work_struct *work);
+void wl1271_tx_work_locked(struct wl1271 *wl);
+void wl1271_tx_complete(struct wl1271 *wl);
+void wl1271_tx_reset(struct wl1271 *wl);
+void wl1271_tx_flush(struct wl1271 *wl);
+u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band);
+u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set);
+
+#endif