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

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   8  * Copyright(c) 2014 Intel Mobile Communications GmbH
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  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