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: 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 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