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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
4 *
5 * Copyright (c) 2010, ST-Ericsson
6 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
7 */
8
9#ifndef CW1200_TXRX_H
10#define CW1200_TXRX_H
11
12#include <linux/list.h>
13
14/* extern */ struct ieee80211_hw;
15/* extern */ struct sk_buff;
16/* extern */ struct wsm_tx;
17/* extern */ struct wsm_rx;
18/* extern */ struct wsm_tx_confirm;
19/* extern */ struct cw1200_txpriv;
20
21struct tx_policy {
22 union {
23 __le32 tbl[3];
24 u8 raw[12];
25 };
26 u8 defined;
27 u8 usage_count;
28 u8 retry_count;
29 u8 uploaded;
30};
31
32struct tx_policy_cache_entry {
33 struct tx_policy policy;
34 struct list_head link;
35};
36
37#define TX_POLICY_CACHE_SIZE (8)
38struct tx_policy_cache {
39 struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
40 struct list_head used;
41 struct list_head free;
42 spinlock_t lock; /* Protect policy cache */
43};
44
45/* ******************************************************************** */
46/* TX policy cache */
47/* Intention of TX policy cache is an overcomplicated WSM API.
48 * Device does not accept per-PDU tx retry sequence.
49 * It uses "tx retry policy id" instead, so driver code has to sync
50 * linux tx retry sequences with a retry policy table in the device.
51 */
52void tx_policy_init(struct cw1200_common *priv);
53void tx_policy_upload_work(struct work_struct *work);
54void tx_policy_clean(struct cw1200_common *priv);
55
56/* ******************************************************************** */
57/* TX implementation */
58
59u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
60 u32 rates);
61void cw1200_tx(struct ieee80211_hw *dev,
62 struct ieee80211_tx_control *control,
63 struct sk_buff *skb);
64void cw1200_skb_dtor(struct cw1200_common *priv,
65 struct sk_buff *skb,
66 const struct cw1200_txpriv *txpriv);
67
68/* ******************************************************************** */
69/* WSM callbacks */
70
71void cw1200_tx_confirm_cb(struct cw1200_common *priv,
72 int link_id,
73 struct wsm_tx_confirm *arg);
74void cw1200_rx_cb(struct cw1200_common *priv,
75 struct wsm_rx *arg,
76 int link_id,
77 struct sk_buff **skb_p);
78
79/* ******************************************************************** */
80/* Timeout */
81
82void cw1200_tx_timeout(struct work_struct *work);
83
84/* ******************************************************************** */
85/* Security */
86int cw1200_alloc_key(struct cw1200_common *priv);
87void cw1200_free_key(struct cw1200_common *priv, int idx);
88void cw1200_free_keys(struct cw1200_common *priv);
89int cw1200_upload_keys(struct cw1200_common *priv);
90
91/* ******************************************************************** */
92/* Workaround for WFD test case 6.1.10 */
93void cw1200_link_id_reset(struct work_struct *work);
94
95#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
96
97int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
98int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
99void cw1200_link_id_work(struct work_struct *work);
100void cw1200_link_id_gc_work(struct work_struct *work);
101
102
103#endif /* CW1200_TXRX_H */
1/*
2 * Datapath interface for ST-Ericsson CW1200 mac80211 drivers
3 *
4 * Copyright (c) 2010, ST-Ericsson
5 * Author: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef CW1200_TXRX_H
13#define CW1200_TXRX_H
14
15#include <linux/list.h>
16
17/* extern */ struct ieee80211_hw;
18/* extern */ struct sk_buff;
19/* extern */ struct wsm_tx;
20/* extern */ struct wsm_rx;
21/* extern */ struct wsm_tx_confirm;
22/* extern */ struct cw1200_txpriv;
23
24struct tx_policy {
25 union {
26 __le32 tbl[3];
27 u8 raw[12];
28 };
29 u8 defined;
30 u8 usage_count;
31 u8 retry_count;
32 u8 uploaded;
33};
34
35struct tx_policy_cache_entry {
36 struct tx_policy policy;
37 struct list_head link;
38};
39
40#define TX_POLICY_CACHE_SIZE (8)
41struct tx_policy_cache {
42 struct tx_policy_cache_entry cache[TX_POLICY_CACHE_SIZE];
43 struct list_head used;
44 struct list_head free;
45 spinlock_t lock; /* Protect policy cache */
46};
47
48/* ******************************************************************** */
49/* TX policy cache */
50/* Intention of TX policy cache is an overcomplicated WSM API.
51 * Device does not accept per-PDU tx retry sequence.
52 * It uses "tx retry policy id" instead, so driver code has to sync
53 * linux tx retry sequences with a retry policy table in the device.
54 */
55void tx_policy_init(struct cw1200_common *priv);
56void tx_policy_upload_work(struct work_struct *work);
57void tx_policy_clean(struct cw1200_common *priv);
58
59/* ******************************************************************** */
60/* TX implementation */
61
62u32 cw1200_rate_mask_to_wsm(struct cw1200_common *priv,
63 u32 rates);
64void cw1200_tx(struct ieee80211_hw *dev,
65 struct ieee80211_tx_control *control,
66 struct sk_buff *skb);
67void cw1200_skb_dtor(struct cw1200_common *priv,
68 struct sk_buff *skb,
69 const struct cw1200_txpriv *txpriv);
70
71/* ******************************************************************** */
72/* WSM callbacks */
73
74void cw1200_tx_confirm_cb(struct cw1200_common *priv,
75 int link_id,
76 struct wsm_tx_confirm *arg);
77void cw1200_rx_cb(struct cw1200_common *priv,
78 struct wsm_rx *arg,
79 int link_id,
80 struct sk_buff **skb_p);
81
82/* ******************************************************************** */
83/* Timeout */
84
85void cw1200_tx_timeout(struct work_struct *work);
86
87/* ******************************************************************** */
88/* Security */
89int cw1200_alloc_key(struct cw1200_common *priv);
90void cw1200_free_key(struct cw1200_common *priv, int idx);
91void cw1200_free_keys(struct cw1200_common *priv);
92int cw1200_upload_keys(struct cw1200_common *priv);
93
94/* ******************************************************************** */
95/* Workaround for WFD test case 6.1.10 */
96void cw1200_link_id_reset(struct work_struct *work);
97
98#define CW1200_LINK_ID_GC_TIMEOUT ((unsigned long)(10 * HZ))
99
100int cw1200_find_link_id(struct cw1200_common *priv, const u8 *mac);
101int cw1200_alloc_link_id(struct cw1200_common *priv, const u8 *mac);
102void cw1200_link_id_work(struct work_struct *work);
103void cw1200_link_id_gc_work(struct work_struct *work);
104
105
106#endif /* CW1200_TXRX_H */