drivers/net/wireless/intel/iwlwifi/iwl-scd.h

   1 /* SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause */
   2 /*
   3  * Copyright (C) 2014 Intel Mobile Communications GmbH
   4  */
   5 #ifndef __iwl_scd_h__
   6 #define __iwl_scd_h__
   7
   8 #include "iwl-trans.h"
   9 #include "iwl-io.h"
  10 #include "iwl-prph.h"
  11
  12
  13 static inline void iwl_scd_txq_set_chain(struct iwl_trans *trans,
  14                                          u16 txq_id)
  15 {
  16         iwl_set_bits_prph(trans, SCD_QUEUECHAIN_SEL, BIT(txq_id));
  17 }
  18
  19 static inline void iwl_scd_txq_enable_agg(struct iwl_trans *trans,
  20                                           u16 txq_id)
  21 {
  22         iwl_set_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
  23 }
  24
  25 static inline void iwl_scd_txq_disable_agg(struct iwl_trans *trans,
  26                                            u16 txq_id)
  27 {
  28         iwl_clear_bits_prph(trans, SCD_AGGR_SEL, BIT(txq_id));
  29 }
  30
  31 static inline void iwl_scd_disable_agg(struct iwl_trans *trans)
  32 {
  33         iwl_set_bits_prph(trans, SCD_AGGR_SEL, 0);
  34 }
  35
  36 static inline void iwl_scd_activate_fifos(struct iwl_trans *trans)
  37 {
  38         iwl_write_prph(trans, SCD_TXFACT, IWL_MASK(0, 7));
  39 }
  40
  41 static inline void iwl_scd_deactivate_fifos(struct iwl_trans *trans)
  42 {
  43         iwl_write_prph(trans, SCD_TXFACT, 0);
  44 }
  45
  46 static inline void iwl_scd_enable_set_active(struct iwl_trans *trans,
  47                                              u32 value)
  48 {
  49         iwl_write_prph(trans, SCD_EN_CTRL, value);
  50 }
  51
  52 static inline unsigned int SCD_QUEUE_WRPTR(unsigned int chnl)
  53 {
  54         if (chnl < 20)
  55                 return SCD_BASE + 0x18 + chnl * 4;
  56         WARN_ON_ONCE(chnl >= 32);
  57         return SCD_BASE + 0x284 + (chnl - 20) * 4;
  58 }
  59
  60 static inline unsigned int SCD_QUEUE_RDPTR(unsigned int chnl)
  61 {
  62         if (chnl < 20)
  63                 return SCD_BASE + 0x68 + chnl * 4;
  64         WARN_ON_ONCE(chnl >= 32);
  65         return SCD_BASE + 0x2B4 + chnl * 4;
  66 }
  67
  68 static inline unsigned int SCD_QUEUE_STATUS_BITS(unsigned int chnl)
  69 {
  70         if (chnl < 20)
  71                 return SCD_BASE + 0x10c + chnl * 4;
  72         WARN_ON_ONCE(chnl >= 32);
  73         return SCD_BASE + 0x334 + chnl * 4;
  74 }
  75
  76 static inline void iwl_scd_txq_set_inactive(struct iwl_trans *trans,
  77                                             u16 txq_id)
  78 {
  79         iwl_write_prph(trans, SCD_QUEUE_STATUS_BITS(txq_id),
  80                        (0 << SCD_QUEUE_STTS_REG_POS_ACTIVE)|
  81                        (1 << SCD_QUEUE_STTS_REG_POS_SCD_ACT_EN));
  82 }
  83
  84 #endif