wireless/wl12xx/wl1251: move TI WLAN modules to a common ti subdirectory

Move wl12xx and wl1251 modules into a new drivers/net/wireless/ti
directory.  Add a TI WLAN Kconfig option and Makefile to support this
change.

Signed-off-by: Luciano Coelho <coelho@ti.com>
Cc: John W. Linville <linville@tuxdriver.com>

1 files changed, 232 insertions, 0 deletions

diff --git a/drivers/net/wireless/ti/wl12xx/tx.h b/drivers/net/wireless/ti/wl12xx/tx.h
new file mode 100644
index 00000000000..5cf8c32d40d
--- /dev/null
+++ b/drivers/net/wireless/ti/wl12xx/tx.h
@@ -0,0 +1,232 @@
+/*
+ * 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_DEFAULT        1
+#define TX_HW_BLOCK_SIZE                 252
+
+#define TX_HW_MGMT_PKT_LIFETIME_TU       2000
+#define TX_HW_AP_MODE_PKT_LIFETIME_TU    8000
+
+#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_TX_DUMMY_REQ          BIT(13)
+#define TX_HW_ATTR_HOST_ENCRYPT          BIT(14)
+
+#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_EXTRA_SPACE_TKIP 4
+#define WL1271_EXTRA_SPACE_AES  8
+#define WL1271_EXTRA_SPACE_MAX  8
+
+/* Used for management frames and dummy packets */
+#define WL1271_TID_MGMT 7
+
+struct wl127x_tx_mem {
+	/*
+	 * Number of extra memory blocks to allocate for this packet
+	 * in addition to the number of blocks derived from the packet
+	 * length.
+	 */
+	u8 extra_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;
+} __packed;
+
+struct wl128x_tx_mem {
+	/*
+	 * Total number of memory blocks allocated by the host for
+	 * this packet.
+	 */
+	u8 total_mem_blocks;
+	/*
+	 * Number of extra bytes, at the end of the frame. the host
+	 * uses this padding to complete each frame to integer number
+	 * of SDIO blocks.
+	 */
+	u8 extra_bytes;
+} __packed;
+
+/*
+ * On wl128x based devices, when TX packets are aggregated, each packet
+ * size must be aligned to the SDIO block size. The maximum block size
+ * is bounded by the type of the padded bytes field that is sent to the
+ * FW. Currently the type is u8, so the maximum block size is 256 bytes.
+ */
+#define WL12XX_BUS_BLOCK_SIZE min(512u,	\
+	    (1u << (8 * sizeof(((struct wl128x_tx_mem *) 0)->extra_bytes))))
+
+struct wl1271_tx_hw_descr {
+	/* Length of packet in words, including descriptor+header+data */
+	__le16 length;
+	union {
+		struct wl127x_tx_mem wl127x_mem;
+		struct wl128x_tx_mem wl128x_mem;
+	} __packed;
+	/* 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: start_time + (1024 * life_time)
+	 */
+	__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;
+	/* host link ID (HLID) */
+	u8 hlid;
+	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,
+	TX_LINK_NOT_VALID   = 8,
+};
+
+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 tx_security_sequence_number_lsb;
+	/* 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;
+	}
+}
+
+static inline int wl1271_tx_get_mac80211_queue(int queue)
+{
+	switch (queue) {
+	case CONF_TX_AC_VO:
+		return 0;
+	case CONF_TX_AC_VI:
+		return 1;
+	case CONF_TX_AC_BE:
+		return 2;
+	case CONF_TX_AC_BK:
+		return 3;
+	default:
+		return 2;
+	}
+}
+
+static inline int wl1271_tx_total_queue_count(struct wl1271 *wl)
+{
+	int i, count = 0;
+
+	for (i = 0; i < NUM_TX_QUEUES; i++)
+		count += wl->tx_queue_count[i];
+
+	return count;
+}
+
+void wl1271_tx_work(struct work_struct *work);
+void wl1271_tx_work_locked(struct wl1271 *wl);
+void wl1271_tx_complete(struct wl1271 *wl);
+void wl12xx_tx_reset_wlvif(struct wl1271 *wl, struct wl12xx_vif *wlvif);
+void wl12xx_tx_reset(struct wl1271 *wl, bool reset_tx_queues);
+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,
+				enum ieee80211_band rate_band);
+u32 wl1271_tx_min_rate_get(struct wl1271 *wl, u32 rate_set);
+u8 wl12xx_tx_get_hlid_ap(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+			 struct sk_buff *skb);
+u8 wl12xx_tx_get_hlid(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+		      struct sk_buff *skb);
+void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid);
+void wl1271_handle_tx_low_watermark(struct wl1271 *wl);
+bool wl12xx_is_dummy_packet(struct wl1271 *wl, struct sk_buff *skb);
+void wl12xx_rearm_rx_streaming(struct wl1271 *wl, unsigned long *active_hlids);
+
+/* from main.c */
+void wl1271_free_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif, u8 hlid);
+void wl12xx_rearm_tx_watchdog_locked(struct wl1271 *wl);
+
+#endif