mirror of
https://github.com/torvalds/linux.git
synced 2024-12-30 14:52:05 +00:00
79b122dc51
Update the rx/tx descriptors according to the new fw api (fw >= 6/7.3.0.0.75) Signed-off-by: Eliad Peller <eliad@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
218 lines
6.1 KiB
C
218 lines
6.1 KiB
C
/*
|
|
* 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_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_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_TKIP_IV_SPACE 4
|
|
|
|
/* 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 wl1271_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);
|
|
u32 wl1271_tx_min_rate_get(struct wl1271 *wl);
|
|
u8 wl1271_tx_get_hlid(struct sk_buff *skb);
|
|
void wl1271_tx_reset_link_queues(struct wl1271 *wl, u8 hlid);
|
|
void wl1271_handle_tx_low_watermark(struct wl1271 *wl);
|
|
|
|
#endif
|