1 /******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2014 Intel Mobile Communications GmbH
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <linuxwifi@intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2014 Intel Mobile Communications GmbH
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
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40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
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47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63
64 #ifndef __iwl_scd_h__
65 #define __iwl_scd_h__
66
67 #include "iwl-trans.h"
68 #include "iwl-io.h"
69 #include "iwl-prph.h"
70
71
iwl_scd_txq_set_chain(struct iwl_trans * trans,u16 txq_id)72 static inline void iwl_scd_txq_set_chain(struct iwl_trans *trans,
73 u16 txq_id)
74 {
75 iwl_set_bits_prph(trans, SCD_QUEUECHAIN_SEL, BIT(txq_id));
76 }
77
iwl_scd_txq_enable_agg(struct iwl_trans * trans,u16 txq_id)78 static inline void iwl_scd_txq_enable_agg(struct iwl_trans *trans,
79 u16 txq_id)
80 {
81 iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
82 }
83
iwl_scd_txq_disable_agg(struct iwl_trans * trans,u16 txq_id)84 static inline void iwl_scd_txq_disable_agg(struct iwl_trans *trans,
85 u16 txq_id)
86 {
87 iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
88 }
89
iwl_scd_disable_agg(struct iwl_trans * trans)90 static inline void iwl_scd_disable_agg(struct iwl_trans *trans)
91 {
92 iwl_set_bits_prph(trans, SCD_AGGR_SEL, 0);
93 }
94
iwl_scd_activate_fifos(struct iwl_trans * trans)95 static inline void iwl_scd_activate_fifos(struct iwl_trans *trans)
96 {
97 iwl_write_prph(trans, SCD_TXFACT, IWL_MASK(0, 7));
98 }
99
iwl_scd_deactivate_fifos(struct iwl_trans * trans)100 static inline void iwl_scd_deactivate_fifos(struct iwl_trans *trans)
101 {
102 iwl_write_prph(trans, SCD_TXFACT, 0);
103 }
104
iwl_scd_enable_set_active(struct iwl_trans * trans,u32 value)105 static inline void iwl_scd_enable_set_active(struct iwl_trans *trans,
106 u32 value)
107 {
108 iwl_write_prph(trans, SCD_EN_CTRL, value);
109 }
110
SCD_QUEUE_WRPTR(unsigned int chnl)111 static inline unsigned int SCD_QUEUE_WRPTR(unsigned int chnl)
112 {
113 if (chnl < 20)
114 return SCD_BASE + 0x18 + chnl * 4;
115 WARN_ON_ONCE(chnl >= 32);
116 return SCD_BASE + 0x284 + (chnl - 20) * 4;
117 }
118
SCD_QUEUE_RDPTR(unsigned int chnl)119 static inline unsigned int SCD_QUEUE_RDPTR(unsigned int chnl)
120 {
121 if (chnl < 20)
122 return SCD_BASE + 0x68 + chnl * 4;
123 WARN_ON_ONCE(chnl >= 32);
124 return SCD_BASE + 0x2B4 + chnl * 4;
125 }
126
SCD_QUEUE_STATUS_BITS(unsigned int chnl)127 static inline unsigned int SCD_QUEUE_STATUS_BITS(unsigned int chnl)
128 {
129 if (chnl < 20)
130 return SCD_BASE + 0x10c + chnl * 4;
131 WARN_ON_ONCE(chnl >= 32);
132 return SCD_BASE + 0x334 + chnl * 4;
133 }
134
iwl_scd_txq_set_inactive(struct iwl_trans * trans,u16 txq_id)135 static inline void iwl_scd_txq_set_inactive(struct iwl_trans *trans,
136 u16 txq_id)
137 {
138 iwl_write_prph(trans, SCD_QUEUE_STATUS_BITS(txq_id),
139 (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
140 (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
141 }
142
143 #endif
144