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 * The full GNU General Public License is included in this distribution 20 * in the file called COPYING. 21 * 22 * Contact Information: 23 * Intel Linux Wireless <linuxwifi@intel.com> 24 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 25 * 26 * BSD LICENSE 27 * 28 * Copyright(c) 2014 Intel Mobile Communications GmbH 29 * All rights reserved. 30 * 31 * Redistribution and use in source and binary forms, with or without 32 * modification, are permitted provided that the following conditions 33 * are met: 34 * 35 * * Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * * Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in 39 * the documentation and/or other materials provided with the 40 * distribution. 41 * * Neither the name Intel Corporation nor the names of its 42 * contributors may be used to endorse or promote products derived 43 * from this software without specific prior written permission. 44 * 45 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 46 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 47 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 48 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 49 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 50 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 51 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 52 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 53 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 54 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 55 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 56 * 57 *****************************************************************************/ 58 59 #ifndef __iwl_scd_h__ 60 #define __iwl_scd_h__ 61 62 #include "iwl-trans.h" 63 #include "iwl-io.h" 64 #include "iwl-prph.h" 65 66 67 static inline void iwl_scd_txq_set_chain(struct iwl_trans *trans, 68 u16 txq_id) 69 { 70 iwl_set_bits_prph(trans, SCD_QUEUECHAIN_SEL, BIT(txq_id)); 71 } 72 73 static inline void iwl_scd_txq_enable_agg(struct iwl_trans *trans, 74 u16 txq_id) 75 { 76 iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); 77 } 78 79 static inline void iwl_scd_txq_disable_agg(struct iwl_trans *trans, 80 u16 txq_id) 81 { 82 iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id)); 83 } 84 85 static inline void iwl_scd_disable_agg(struct iwl_trans *trans) 86 { 87 iwl_set_bits_prph(trans, SCD_AGGR_SEL, 0); 88 } 89 90 static inline void iwl_scd_activate_fifos(struct iwl_trans *trans) 91 { 92 iwl_write_prph(trans, SCD_TXFACT, IWL_MASK(0, 7)); 93 } 94 95 static inline void iwl_scd_deactivate_fifos(struct iwl_trans *trans) 96 { 97 iwl_write_prph(trans, SCD_TXFACT, 0); 98 } 99 100 static inline void iwl_scd_enable_set_active(struct iwl_trans *trans, 101 u32 value) 102 { 103 iwl_write_prph(trans, SCD_EN_CTRL, value); 104 } 105 106 static inline unsigned int SCD_QUEUE_WRPTR(unsigned int chnl) 107 { 108 if (chnl < 20) 109 return SCD_BASE + 0x18 + chnl * 4; 110 WARN_ON_ONCE(chnl >= 32); 111 return SCD_BASE + 0x284 + (chnl - 20) * 4; 112 } 113 114 static inline unsigned int SCD_QUEUE_RDPTR(unsigned int chnl) 115 { 116 if (chnl < 20) 117 return SCD_BASE + 0x68 + chnl * 4; 118 WARN_ON_ONCE(chnl >= 32); 119 return SCD_BASE + 0x2B4 + chnl * 4; 120 } 121 122 static inline unsigned int SCD_QUEUE_STATUS_BITS(unsigned int chnl) 123 { 124 if (chnl < 20) 125 return SCD_BASE + 0x10c + chnl * 4; 126 WARN_ON_ONCE(chnl >= 32); 127 return SCD_BASE + 0x334 + chnl * 4; 128 } 129 130 static inline void iwl_scd_txq_set_inactive(struct iwl_trans *trans, 131 u16 txq_id) 132 { 133 iwl_write_prph(trans, SCD_QUEUE_STATUS_BITS(txq_id), 134 (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)| 135 (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN)); 136 } 137 138 #endif 139