/drivers/net/wireless/mwifiex/11n.h

http://github.com/mirrors/linux · C++ Header · 168 lines · 112 code · 18 blank · 38 comment · 11 complexity · e0e7694074ff23a4f459ffaa83f8fe4d MD5 · raw file

  1. /*
  2. * Marvell Wireless LAN device driver: 802.11n
  3. *
  4. * Copyright (C) 2011, Marvell International Ltd.
  5. *
  6. * This software file (the "File") is distributed by Marvell International
  7. * Ltd. under the terms of the GNU General Public License Version 2, June 1991
  8. * (the "License"). You may use, redistribute and/or modify this File in
  9. * accordance with the terms and conditions of the License, a copy of which
  10. * is available by writing to the Free Software Foundation, Inc.,
  11. * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
  12. * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  13. *
  14. * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
  15. * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
  16. * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
  17. * this warranty disclaimer.
  18. */
  19. #ifndef _MWIFIEX_11N_H_
  20. #define _MWIFIEX_11N_H_
  21. #include "11n_aggr.h"
  22. #include "11n_rxreorder.h"
  23. #include "wmm.h"
  24. int mwifiex_ret_11n_delba(struct mwifiex_private *priv,
  25. struct host_cmd_ds_command *resp);
  26. int mwifiex_ret_11n_addba_req(struct mwifiex_private *priv,
  27. struct host_cmd_ds_command *resp);
  28. int mwifiex_cmd_11n_cfg(struct mwifiex_private *priv,
  29. struct host_cmd_ds_command *cmd, u16 cmd_action,
  30. struct mwifiex_ds_11n_tx_cfg *txcfg);
  31. int mwifiex_cmd_append_11n_tlv(struct mwifiex_private *priv,
  32. struct mwifiex_bssdescriptor *bss_desc,
  33. u8 **buffer);
  34. void mwifiex_fill_cap_info(struct mwifiex_private *, u8 radio_type,
  35. struct mwifiex_ie_types_htcap *);
  36. int mwifiex_set_get_11n_htcap_cfg(struct mwifiex_private *priv,
  37. u16 action, int *htcap_cfg);
  38. void mwifiex_11n_delete_tx_ba_stream_tbl_entry(struct mwifiex_private *priv,
  39. struct mwifiex_tx_ba_stream_tbl
  40. *tx_tbl);
  41. void mwifiex_11n_delete_all_tx_ba_stream_tbl(struct mwifiex_private *priv);
  42. struct mwifiex_tx_ba_stream_tbl *mwifiex_get_ba_tbl(struct
  43. mwifiex_private
  44. *priv, int tid,
  45. u8 *ra);
  46. void mwifiex_create_ba_tbl(struct mwifiex_private *priv, u8 *ra, int tid,
  47. enum mwifiex_ba_status ba_status);
  48. int mwifiex_send_addba(struct mwifiex_private *priv, int tid, u8 *peer_mac);
  49. int mwifiex_send_delba(struct mwifiex_private *priv, int tid, u8 *peer_mac,
  50. int initiator);
  51. void mwifiex_11n_delete_ba_stream(struct mwifiex_private *priv, u8 *del_ba);
  52. int mwifiex_get_rx_reorder_tbl(struct mwifiex_private *priv,
  53. struct mwifiex_ds_rx_reorder_tbl *buf);
  54. int mwifiex_get_tx_ba_stream_tbl(struct mwifiex_private *priv,
  55. struct mwifiex_ds_tx_ba_stream_tbl *buf);
  56. int mwifiex_cmd_recfg_tx_buf(struct mwifiex_private *priv,
  57. struct host_cmd_ds_command *cmd,
  58. int cmd_action, u16 *buf_size);
  59. int mwifiex_cmd_amsdu_aggr_ctrl(struct host_cmd_ds_command *cmd,
  60. int cmd_action,
  61. struct mwifiex_ds_11n_amsdu_aggr_ctrl *aa_ctrl);
  62. void mwifiex_del_tx_ba_stream_tbl_by_ra(struct mwifiex_private *priv, u8 *ra);
  63. /*
  64. * This function checks whether AMPDU is allowed or not for a particular TID.
  65. */
  66. static inline u8
  67. mwifiex_is_ampdu_allowed(struct mwifiex_private *priv, int tid)
  68. {
  69. return ((priv->aggr_prio_tbl[tid].ampdu_ap != BA_STREAM_NOT_ALLOWED)
  70. ? true : false);
  71. }
  72. /*
  73. * This function checks whether AMSDU is allowed or not for a particular TID.
  74. */
  75. static inline u8
  76. mwifiex_is_amsdu_allowed(struct mwifiex_private *priv, int tid)
  77. {
  78. return (((priv->aggr_prio_tbl[tid].amsdu != BA_STREAM_NOT_ALLOWED) &&
  79. (priv->is_data_rate_auto || !(priv->bitmap_rates[2] & 0x03)))
  80. ? true : false);
  81. }
  82. /*
  83. * This function checks whether a space is available for new BA stream or not.
  84. */
  85. static inline u8 mwifiex_space_avail_for_new_ba_stream(
  86. struct mwifiex_adapter *adapter)
  87. {
  88. struct mwifiex_private *priv;
  89. u8 i;
  90. u32 ba_stream_num = 0;
  91. for (i = 0; i < adapter->priv_num; i++) {
  92. priv = adapter->priv[i];
  93. if (priv)
  94. ba_stream_num += mwifiex_wmm_list_len(
  95. &priv->tx_ba_stream_tbl_ptr);
  96. }
  97. return ((ba_stream_num <
  98. MWIFIEX_MAX_TX_BASTREAM_SUPPORTED) ? true : false);
  99. }
  100. /*
  101. * This function finds the correct Tx BA stream to delete.
  102. *
  103. * Upon successfully locating, both the TID and the RA are returned.
  104. */
  105. static inline u8
  106. mwifiex_find_stream_to_delete(struct mwifiex_private *priv, int ptr_tid,
  107. int *ptid, u8 *ra)
  108. {
  109. int tid;
  110. u8 ret = false;
  111. struct mwifiex_tx_ba_stream_tbl *tx_tbl;
  112. unsigned long flags;
  113. tid = priv->aggr_prio_tbl[ptr_tid].ampdu_user;
  114. spin_lock_irqsave(&priv->tx_ba_stream_tbl_lock, flags);
  115. list_for_each_entry(tx_tbl, &priv->tx_ba_stream_tbl_ptr, list) {
  116. if (tid > priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user) {
  117. tid = priv->aggr_prio_tbl[tx_tbl->tid].ampdu_user;
  118. *ptid = tx_tbl->tid;
  119. memcpy(ra, tx_tbl->ra, ETH_ALEN);
  120. ret = true;
  121. }
  122. }
  123. spin_unlock_irqrestore(&priv->tx_ba_stream_tbl_lock, flags);
  124. return ret;
  125. }
  126. /*
  127. * This function checks whether BA stream is set up or not.
  128. */
  129. static inline int
  130. mwifiex_is_ba_stream_setup(struct mwifiex_private *priv,
  131. struct mwifiex_ra_list_tbl *ptr, int tid)
  132. {
  133. struct mwifiex_tx_ba_stream_tbl *tx_tbl;
  134. tx_tbl = mwifiex_get_ba_tbl(priv, tid, ptr->ra);
  135. if (tx_tbl && IS_BASTREAM_SETUP(tx_tbl))
  136. return true;
  137. return false;
  138. }
  139. /*
  140. * This function checks whether associated station is 11n enabled
  141. */
  142. static inline int mwifiex_is_sta_11n_enabled(struct mwifiex_private *priv,
  143. struct mwifiex_sta_node *node)
  144. {
  145. if (!node || (priv->bss_role != MWIFIEX_BSS_ROLE_UAP) ||
  146. !priv->ap_11n_enabled)
  147. return 0;
  148. return node->is_11n_enabled;
  149. }
  150. #endif /* !_MWIFIEX_11N_H_ */