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 <ilw@linux.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:
39 *
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.
46 *  * Neither the name Intel Corporation nor the names of its
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
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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
72static 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
78static 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
84static 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
90static inline void iwl_scd_disable_agg(struct iwl_trans *trans)
91{
92	iwl_set_bits_prph(trans, SCD_AGGR_SEL, 0);
93}
94
95static inline void iwl_scd_activate_fifos(struct iwl_trans *trans)
96{
97	iwl_write_prph(trans, SCD_TXFACT, IWL_MASK(0, 7));
98}
99
100static inline void iwl_scd_deactivate_fifos(struct iwl_trans *trans)
101{
102	iwl_write_prph(trans, SCD_TXFACT, 0);
103}
104
105static 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
111static 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
119static 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
127static 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
135static 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