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.
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6  * GPL LICENSE SUMMARY
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8  * Copyright(c) 2014 Intel Mobile Communications GmbH
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11  * it under the terms of version 2 of the GNU General Public License as
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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  *
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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
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24  * The full GNU General Public License is included in this distribution
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28  *  Intel Linux Wireless <linuxwifi@intel.com>
29  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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31  * BSD LICENSE
32  *
33  * Copyright(c) 2014 Intel Mobile Communications GmbH
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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 
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 
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 
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 
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 
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 
100 static inline void iwl_scd_deactivate_fifos(struct iwl_trans *trans)
101 {
102 	iwl_write_prph(trans, SCD_TXFACT, 0);
103 }
104 
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 
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 
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 
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 
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