ht_sig_info.h 12 KB

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  1. /* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
  2. *
  3. * Permission to use, copy, modify, and/or distribute this software for any
  4. * purpose with or without fee is hereby granted, provided that the above
  5. * copyright notice and this permission notice appear in all copies.
  6. *
  7. * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  8. * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  9. * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  10. * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  11. * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  12. * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  13. * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  14. */
  15. #ifndef _HT_SIG_INFO_H_
  16. #define _HT_SIG_INFO_H_
  17. #if !defined(__ASSEMBLER__)
  18. #endif
  19. #define NUM_OF_DWORDS_HT_SIG_INFO 2
  20. struct ht_sig_info {
  21. #ifndef WIFI_BIT_ORDER_BIG_ENDIAN
  22. uint32_t mcs : 7, // [6:0]
  23. cbw : 1, // [7:7]
  24. length : 16, // [23:8]
  25. reserved_0 : 8; // [31:24]
  26. uint32_t smoothing : 1, // [0:0]
  27. not_sounding : 1, // [1:1]
  28. ht_reserved : 1, // [2:2]
  29. aggregation : 1, // [3:3]
  30. stbc : 2, // [5:4]
  31. fec_coding : 1, // [6:6]
  32. short_gi : 1, // [7:7]
  33. num_ext_sp_str : 2, // [9:8]
  34. crc : 8, // [17:10]
  35. signal_tail : 6, // [23:18]
  36. reserved_1 : 7, // [30:24]
  37. rx_integrity_check_passed : 1; // [31:31]
  38. #else
  39. uint32_t reserved_0 : 8, // [31:24]
  40. length : 16, // [23:8]
  41. cbw : 1, // [7:7]
  42. mcs : 7; // [6:0]
  43. uint32_t rx_integrity_check_passed : 1, // [31:31]
  44. reserved_1 : 7, // [30:24]
  45. signal_tail : 6, // [23:18]
  46. crc : 8, // [17:10]
  47. num_ext_sp_str : 2, // [9:8]
  48. short_gi : 1, // [7:7]
  49. fec_coding : 1, // [6:6]
  50. stbc : 2, // [5:4]
  51. aggregation : 1, // [3:3]
  52. ht_reserved : 1, // [2:2]
  53. not_sounding : 1, // [1:1]
  54. smoothing : 1; // [0:0]
  55. #endif
  56. };
  57. /* Description MCS
  58. Modulation Coding Scheme:
  59. 0-7 are used for single stream
  60. 8-15 are used for 2 streams
  61. 16-23 are used for 3 streams
  62. 24-31 are used for 4 streams
  63. 32 is used for duplicate HT20 (unsupported)
  64. 33-76 is used for unequal modulation (unsupported)
  65. 77-127 is reserved.
  66. <legal 0-31>
  67. */
  68. #define HT_SIG_INFO_MCS_OFFSET 0x00000000
  69. #define HT_SIG_INFO_MCS_LSB 0
  70. #define HT_SIG_INFO_MCS_MSB 6
  71. #define HT_SIG_INFO_MCS_MASK 0x0000007f
  72. /* Description CBW
  73. Packet bandwidth:
  74. <enum 0 ht_20_mhz>
  75. <enum 1 ht_40_mhz>
  76. <legal 0-1>
  77. */
  78. #define HT_SIG_INFO_CBW_OFFSET 0x00000000
  79. #define HT_SIG_INFO_CBW_LSB 7
  80. #define HT_SIG_INFO_CBW_MSB 7
  81. #define HT_SIG_INFO_CBW_MASK 0x00000080
  82. /* Description LENGTH
  83. This is the MPDU or A-MPDU length in octets of the PPDU
  84. <legal all>
  85. */
  86. #define HT_SIG_INFO_LENGTH_OFFSET 0x00000000
  87. #define HT_SIG_INFO_LENGTH_LSB 8
  88. #define HT_SIG_INFO_LENGTH_MSB 23
  89. #define HT_SIG_INFO_LENGTH_MASK 0x00ffff00
  90. /* Description RESERVED_0
  91. This field is not part of HT-SIG
  92. Reserved: Should be set to 0 by the MAC and ignored by the
  93. PHY <legal 0>
  94. */
  95. #define HT_SIG_INFO_RESERVED_0_OFFSET 0x00000000
  96. #define HT_SIG_INFO_RESERVED_0_LSB 24
  97. #define HT_SIG_INFO_RESERVED_0_MSB 31
  98. #define HT_SIG_INFO_RESERVED_0_MASK 0xff000000
  99. /* Description SMOOTHING
  100. Field indicates if smoothing is needed
  101. E_num 0 do_smoothing Unsupported setting: indicates
  102. smoothing is often used for beamforming
  103. <enum 1 no_smoothing> Indicates no smoothing is used
  104. <legal 1>
  105. */
  106. #define HT_SIG_INFO_SMOOTHING_OFFSET 0x00000004
  107. #define HT_SIG_INFO_SMOOTHING_LSB 0
  108. #define HT_SIG_INFO_SMOOTHING_MSB 0
  109. #define HT_SIG_INFO_SMOOTHING_MASK 0x00000001
  110. /* Description NOT_SOUNDING
  111. E_num 0 sounding Unsupported setting: indicates sounding
  112. is used
  113. <enum 1 no_sounding> Indicates no sounding is used
  114. <legal 1>
  115. */
  116. #define HT_SIG_INFO_NOT_SOUNDING_OFFSET 0x00000004
  117. #define HT_SIG_INFO_NOT_SOUNDING_LSB 1
  118. #define HT_SIG_INFO_NOT_SOUNDING_MSB 1
  119. #define HT_SIG_INFO_NOT_SOUNDING_MASK 0x00000002
  120. /* Description HT_RESERVED
  121. Reserved: Should be set to 1 by the MAC and ignored by the
  122. PHY
  123. <legal 1>
  124. */
  125. #define HT_SIG_INFO_HT_RESERVED_OFFSET 0x00000004
  126. #define HT_SIG_INFO_HT_RESERVED_LSB 2
  127. #define HT_SIG_INFO_HT_RESERVED_MSB 2
  128. #define HT_SIG_INFO_HT_RESERVED_MASK 0x00000004
  129. /* Description AGGREGATION
  130. <enum 0 mpdu> Indicates MPDU format
  131. <enum 1 a_mpdu> Indicates A-MPDU format
  132. <legal 0-1>
  133. */
  134. #define HT_SIG_INFO_AGGREGATION_OFFSET 0x00000004
  135. #define HT_SIG_INFO_AGGREGATION_LSB 3
  136. #define HT_SIG_INFO_AGGREGATION_MSB 3
  137. #define HT_SIG_INFO_AGGREGATION_MASK 0x00000008
  138. /* Description STBC
  139. <enum 0 no_stbc> Indicates no STBC
  140. <enum 1 1_str_stbc> Indicates 1 stream STBC
  141. E_num 2 2_str_stbc Indicates 2 stream STBC (Unsupported)
  142. <legal 0-1>
  143. */
  144. #define HT_SIG_INFO_STBC_OFFSET 0x00000004
  145. #define HT_SIG_INFO_STBC_LSB 4
  146. #define HT_SIG_INFO_STBC_MSB 5
  147. #define HT_SIG_INFO_STBC_MASK 0x00000030
  148. /* Description FEC_CODING
  149. <enum 0 ht_bcc> Indicates BCC coding
  150. <enum 1 ht_ldpc> Indicates LDPC coding
  151. <legal 0-1>
  152. */
  153. #define HT_SIG_INFO_FEC_CODING_OFFSET 0x00000004
  154. #define HT_SIG_INFO_FEC_CODING_LSB 6
  155. #define HT_SIG_INFO_FEC_CODING_MSB 6
  156. #define HT_SIG_INFO_FEC_CODING_MASK 0x00000040
  157. /* Description SHORT_GI
  158. <enum 0 ht_normal_gi> Indicates normal guard interval
  159. <enum 1 ht_short_gi> Indicates short guard interval
  160. <legal 0-1>
  161. */
  162. #define HT_SIG_INFO_SHORT_GI_OFFSET 0x00000004
  163. #define HT_SIG_INFO_SHORT_GI_LSB 7
  164. #define HT_SIG_INFO_SHORT_GI_MSB 7
  165. #define HT_SIG_INFO_SHORT_GI_MASK 0x00000080
  166. /* Description NUM_EXT_SP_STR
  167. Number of extension spatial streams: (Used for TxBF)
  168. <enum 0 0_ext_sp_str> No extension spatial streams
  169. E_num 1 1_ext_sp_str Not supported: 1 extension spatial
  170. streams
  171. E_num 2 2_ext_sp_str Not supported: 2 extension spatial
  172. streams
  173. <legal 0>
  174. */
  175. #define HT_SIG_INFO_NUM_EXT_SP_STR_OFFSET 0x00000004
  176. #define HT_SIG_INFO_NUM_EXT_SP_STR_LSB 8
  177. #define HT_SIG_INFO_NUM_EXT_SP_STR_MSB 9
  178. #define HT_SIG_INFO_NUM_EXT_SP_STR_MASK 0x00000300
  179. /* Description CRC
  180. The CRC protects the HT-SIG (HT-SIG[0][23:0] and HT-SIG[1][9:0].
  181. The generator polynomial is G(D) = D8 + D2 + D + 1. <legal
  182. all>
  183. */
  184. #define HT_SIG_INFO_CRC_OFFSET 0x00000004
  185. #define HT_SIG_INFO_CRC_LSB 10
  186. #define HT_SIG_INFO_CRC_MSB 17
  187. #define HT_SIG_INFO_CRC_MASK 0x0003fc00
  188. /* Description SIGNAL_TAIL
  189. The 6 bits of tail is always set to 0 is used to flush the
  190. BCC encoder and decoder. <legal 0>
  191. */
  192. #define HT_SIG_INFO_SIGNAL_TAIL_OFFSET 0x00000004
  193. #define HT_SIG_INFO_SIGNAL_TAIL_LSB 18
  194. #define HT_SIG_INFO_SIGNAL_TAIL_MSB 23
  195. #define HT_SIG_INFO_SIGNAL_TAIL_MASK 0x00fc0000
  196. /* Description RESERVED_1
  197. This field is not part of HT-SIG:
  198. Reserved: Should be set to 0 by the MAC and ignored by the
  199. PHY. <legal 0>
  200. */
  201. #define HT_SIG_INFO_RESERVED_1_OFFSET 0x00000004
  202. #define HT_SIG_INFO_RESERVED_1_LSB 24
  203. #define HT_SIG_INFO_RESERVED_1_MSB 30
  204. #define HT_SIG_INFO_RESERVED_1_MASK 0x7f000000
  205. /* Description RX_INTEGRITY_CHECK_PASSED
  206. TX side: Set to 0
  207. RX side: Set to 1 if PHY determines the HT-SIG CRC check
  208. has passed, else set to 0
  209. <legal all>
  210. */
  211. #define HT_SIG_INFO_RX_INTEGRITY_CHECK_PASSED_OFFSET 0x00000004
  212. #define HT_SIG_INFO_RX_INTEGRITY_CHECK_PASSED_LSB 31
  213. #define HT_SIG_INFO_RX_INTEGRITY_CHECK_PASSED_MSB 31
  214. #define HT_SIG_INFO_RX_INTEGRITY_CHECK_PASSED_MASK 0x80000000
  215. #endif // HT_SIG_INFO