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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-helpers.h184
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diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
deleted file mode 100644
index 9d91552d13c1..000000000000
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
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@@ -1,184 +0,0 @@
1/******************************************************************************
2 *
3 * Copyright(c) 2003 - 2011 Intel Corporation. All rights reserved.
4 *
5 * Portions of this file are derived from the ipw3945 project, as well
6 * as portions of the ieee80211 subsystem header files.
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of version 2 of the GNU General Public License as
10 * published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
20 *
21 * The full GNU General Public License is included in this distribution in the
22 * file called LICENSE.
23 *
24 * Contact Information:
25 * Intel Linux Wireless <ilw@linux.intel.com>
26 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
27 *
28 *****************************************************************************/
29
30#ifndef __iwl_helpers_h__
31#define __iwl_helpers_h__
32
33#include <linux/ctype.h>
34#include <net/mac80211.h>
35
36#include "iwl-io.h"
37
38#define IWL_MASK(lo, hi) ((1 << (hi)) | ((1 << (hi)) - (1 << (lo))))
39
40
41static inline struct ieee80211_conf *ieee80211_get_hw_conf(
42 struct ieee80211_hw *hw)
43{
44 return &hw->conf;
45}
46
47/**
48 * iwl_queue_inc_wrap - increment queue index, wrap back to beginning
49 * @index -- current index
50 * @n_bd -- total number of entries in queue (must be power of 2)
51 */
52static inline int iwl_queue_inc_wrap(int index, int n_bd)
53{
54 return ++index & (n_bd - 1);
55}
56
57/**
58 * iwl_queue_dec_wrap - decrement queue index, wrap back to end
59 * @index -- current index
60 * @n_bd -- total number of entries in queue (must be power of 2)
61 */
62static inline int iwl_queue_dec_wrap(int index, int n_bd)
63{
64 return --index & (n_bd - 1);
65}
66
67/*
68 * we have 8 bits used like this:
69 *
70 * 7 6 5 4 3 2 1 0
71 * | | | | | | | |
72 * | | | | | | +-+-------- AC queue (0-3)
73 * | | | | | |
74 * | +-+-+-+-+------------ HW queue ID
75 * |
76 * +---------------------- unused
77 */
78static inline void iwl_set_swq_id(struct iwl_tx_queue *txq, u8 ac, u8 hwq)
79{
80 BUG_ON(ac > 3); /* only have 2 bits */
81 BUG_ON(hwq > 31); /* only use 5 bits */
82
83 txq->swq_id = (hwq << 2) | ac;
84}
85
86static inline void iwl_wake_queue(struct iwl_priv *priv,
87 struct iwl_tx_queue *txq)
88{
89 u8 queue = txq->swq_id;
90 u8 ac = queue & 3;
91 u8 hwq = (queue >> 2) & 0x1f;
92
93 if (test_and_clear_bit(hwq, priv->queue_stopped))
94 if (atomic_dec_return(&priv->queue_stop_count[ac]) <= 0)
95 ieee80211_wake_queue(priv->hw, ac);
96}
97
98static inline void iwl_stop_queue(struct iwl_priv *priv,
99 struct iwl_tx_queue *txq)
100{
101 u8 queue = txq->swq_id;
102 u8 ac = queue & 3;
103 u8 hwq = (queue >> 2) & 0x1f;
104
105 if (!test_and_set_bit(hwq, priv->queue_stopped))
106 if (atomic_inc_return(&priv->queue_stop_count[ac]) > 0)
107 ieee80211_stop_queue(priv->hw, ac);
108}
109
110static inline void iwl_wake_any_queue(struct iwl_priv *priv,
111 struct iwl_rxon_context *ctx)
112{
113 u8 ac;
114
115 for (ac = 0; ac < AC_NUM; ac++) {
116 IWL_DEBUG_INFO(priv, "Queue Status: Q[%d] %s\n",
117 ac, (atomic_read(&priv->queue_stop_count[ac]) > 0)
118 ? "stopped" : "awake");
119 iwl_wake_queue(priv, &priv->txq[ctx->ac_to_queue[ac]]);
120 }
121}
122
123#ifdef ieee80211_stop_queue
124#undef ieee80211_stop_queue
125#endif
126
127#define ieee80211_stop_queue DO_NOT_USE_ieee80211_stop_queue
128
129#ifdef ieee80211_wake_queue
130#undef ieee80211_wake_queue
131#endif
132
133#define ieee80211_wake_queue DO_NOT_USE_ieee80211_wake_queue
134
135static inline void iwl_disable_interrupts(struct iwl_priv *priv)
136{
137 clear_bit(STATUS_INT_ENABLED, &priv->status);
138
139 /* disable interrupts from uCode/NIC to host */
140 iwl_write32(priv, CSR_INT_MASK, 0x00000000);
141
142 /* acknowledge/clear/reset any interrupts still pending
143 * from uCode or flow handler (Rx/Tx DMA) */
144 iwl_write32(priv, CSR_INT, 0xffffffff);
145 iwl_write32(priv, CSR_FH_INT_STATUS, 0xffffffff);
146 IWL_DEBUG_ISR(priv, "Disabled interrupts\n");
147}
148
149static inline void iwl_enable_rfkill_int(struct iwl_priv *priv)
150{
151 IWL_DEBUG_ISR(priv, "Enabling rfkill interrupt\n");
152 iwl_write32(priv, CSR_INT_MASK, CSR_INT_BIT_RF_KILL);
153}
154
155static inline void iwl_enable_interrupts(struct iwl_priv *priv)
156{
157 IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
158 set_bit(STATUS_INT_ENABLED, &priv->status);
159 iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
160}
161
162/**
163 * iwl_beacon_time_mask_low - mask of lower 32 bit of beacon time
164 * @priv -- pointer to iwl_priv data structure
165 * @tsf_bits -- number of bits need to shift for masking)
166 */
167static inline u32 iwl_beacon_time_mask_low(struct iwl_priv *priv,
168 u16 tsf_bits)
169{
170 return (1 << tsf_bits) - 1;
171}
172
173/**
174 * iwl_beacon_time_mask_high - mask of higher 32 bit of beacon time
175 * @priv -- pointer to iwl_priv data structure
176 * @tsf_bits -- number of bits need to shift for masking)
177 */
178static inline u32 iwl_beacon_time_mask_high(struct iwl_priv *priv,
179 u16 tsf_bits)
180{
181 return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
182}
183
184#endif /* __iwl_helpers_h__ */
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