1 /* 2 * Copyright (c) 2016-2021 The Linux Foundation. All rights reserved. 3 * Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved. 4 * 5 * Permission to use, copy, modify, and/or distribute this software for 6 * any purpose with or without fee is hereby granted, provided that the 7 * above copyright notice and this permission notice appear in all 8 * copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 11 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 12 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 13 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 14 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 15 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 16 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 17 * PERFORMANCE OF THIS SOFTWARE. 18 */ 19 20 #ifndef _DP_RATES_H_ 21 #define _DP_RATES_H_ 22 23 #define CMN_DP_ASSERT(__bool) 24 25 /* 26 * Modes Types 27 */ 28 enum CMN_MODE_TYPES { 29 CMN_IEEE80211_MODE_INVALID = 0, 30 CMN_IEEE80211_MODE_A, 31 CMN_IEEE80211_MODE_B, 32 CMN_IEEE80211_MODE_G, 33 CMN_IEEE80211_MODE_TURBO, 34 CMN_IEEE80211_MODE_NA, 35 CMN_IEEE80211_MODE_NG, 36 CMN_IEEE80211_MODE_N, 37 CMN_IEEE80211_MODE_AC, 38 CMN_IEEE80211_MODE_AXA, 39 CMN_IEEE80211_MODE_AXG, 40 CMN_IEEE80211_MODE_AX, 41 #ifdef WLAN_FEATURE_11BE 42 CMN_IEEE80211_MODE_BEA, 43 CMN_IEEE80211_MODE_BEG, 44 #endif 45 CMN_IEEE80211_MODE_MAX 46 }; 47 48 #define NUM_SPATIAL_STREAMS 8 49 #define MAX_SPATIAL_STREAMS_SUPPORTED_AT_160MHZ 4 50 #define VHT_EXTRA_MCS_SUPPORT 51 #define CONFIG_160MHZ_SUPPORT 1 52 #define NUM_HT_MCS 8 53 #define NUM_VHT_MCS 12 54 55 #define NUM_HE_MCS 14 56 #ifdef WLAN_FEATURE_11BE 57 #define NUM_EHT_MCS 16 58 #endif 59 60 #define NUM_SPATIAL_STREAM 4 61 #define NUM_SPATIAL_STREAMS 8 62 #define WHAL_160MHZ_SUPPORT 1 63 #define MAX_SPATIAL_STREAMS_SUPPORTED_AT_160MHZ 4 64 #define RT_GET_RT(_rt) ((const struct DP_CMN_RATE_TABLE *)(_rt)) 65 #define RT_GET_INFO(_rt, _index) RT_GET_RT(_rt)->info[(_index)] 66 #define RT_GET_RAW_KBPS(_rt, _index) \ 67 (RT_GET_INFO(_rt, (_index)).ratekbps) 68 #define RT_GET_SGI_KBPS(_rt, _index) \ 69 (RT_GET_INFO(_rt, (_index)).ratekbpssgi) 70 71 #define HW_RATECODE_CCK_SHORT_PREAM_MASK 0x4 72 #define RT_INVALID_INDEX (0xff) 73 /* pow2 to optimize out * and / */ 74 #define DP_ATH_RATE_EP_MULTIPLIER BIT(7) 75 #define DP_ATH_EP_MUL(a, b) ((a) * (b)) 76 #define DP_ATH_RATE_LPF_LEN 10 /* Low pass filter length 77 * for averaging rates 78 */ 79 #define DUMMY_MARKER 0 80 #define DP_ATH_RATE_IN(c) (DP_ATH_EP_MUL((c), DP_ATH_RATE_EP_MULTIPLIER)) 81 82 static inline int dp_ath_rate_lpf(uint64_t _d, int _e) 83 { 84 _e = DP_ATH_RATE_IN((_e)); 85 return (((_d) != DUMMY_MARKER) ? ((((_d) << 3) + (_e) - (_d)) >> 3) : 86 (_e)); 87 } 88 89 static inline int dp_ath_rate_out(uint64_t _i) 90 { 91 int _mul = DP_ATH_RATE_EP_MULTIPLIER; 92 93 return (((_i) != DUMMY_MARKER) ? 94 ((((_i) % (_mul)) >= ((_mul) / 2)) ? 95 ((_i) + ((_mul) - 1)) / (_mul) : (_i) / (_mul)) : 96 DUMMY_MARKER); 97 } 98 99 #define RXDESC_GET_DATA_LEN(rx_desc) \ 100 (txrx_pdev->htt_pdev->ar_rx_ops->msdu_desc_msdu_length(rx_desc)) 101 #define ASSEMBLE_HW_RATECODE(_rate, _nss, _pream) \ 102 (((_pream) << 6) | ((_nss) << 4) | (_rate)) 103 #define GET_HW_RATECODE_PREAM(_rcode) (((_rcode) >> 6) & 0x3) 104 #define GET_HW_RATECODE_NSS(_rcode) (((_rcode) >> 4) & 0x3) 105 #define GET_HW_RATECODE_RATE(_rcode) (((_rcode) >> 0) & 0xF) 106 107 #define VHT_INVALID_MCS (0xFF) /* Certain MCSs are not valid in VHT mode */ 108 #define VHT_INVALID_BCC_RATE 0 109 #define NUM_HT_SPATIAL_STREAM 4 110 111 #define NUM_HT_RIX_PER_BW (NUM_HT_MCS * NUM_HT_SPATIAL_STREAM) 112 #define NUM_VHT_RIX_PER_BW (NUM_VHT_MCS * NUM_SPATIAL_STREAMS) 113 #define NUM_HE_RIX_PER_BW (NUM_HE_MCS * NUM_SPATIAL_STREAMS) 114 115 #define NUM_VHT_RIX_FOR_160MHZ (NUM_VHT_MCS * \ 116 MAX_SPATIAL_STREAMS_SUPPORTED_AT_160MHZ) 117 #define NUM_HE_RIX_FOR_160MHZ (NUM_HE_MCS * \ 118 MAX_SPATIAL_STREAMS_SUPPORTED_AT_160MHZ) 119 120 #define CCK_RATE_TABLE_INDEX 0 121 #define CCK_RATE_TABLE_END_INDEX 3 122 #define CCK_RATE_11M_INDEX 0 123 #define CCK_FALLBACK_MIN_RATE 0x3 /** 1 Mbps */ 124 #define CCK_FALLBACK_MAX_RATE 0x2 /** 2 Mbps */ 125 126 #define OFDM_RATE_TABLE_INDEX 4 127 #define OFDMA_RATE_54M_INDEX 8 128 #define OFDMA_RATE_TABLE_END_INDEX 11 129 130 #define HT_20_RATE_TABLE_INDEX 12 131 #define HT_40_RATE_TABLE_INDEX (HT_20_RATE_TABLE_INDEX + NUM_HT_RIX_PER_BW) 132 133 #define VHT_20_RATE_TABLE_INDEX (HT_40_RATE_TABLE_INDEX + NUM_HT_RIX_PER_BW) 134 #define VHT_40_RATE_TABLE_INDEX (VHT_20_RATE_TABLE_INDEX + NUM_VHT_RIX_PER_BW) 135 #define VHT_80_RATE_TABLE_INDEX (VHT_40_RATE_TABLE_INDEX + NUM_VHT_RIX_PER_BW) 136 137 #define VHT_160_RATE_TABLE_INDEX (VHT_80_RATE_TABLE_INDEX + NUM_VHT_RIX_PER_BW) 138 #define VHT_LAST_RIX_PLUS_ONE (VHT_160_RATE_TABLE_INDEX + \ 139 NUM_VHT_RIX_FOR_160MHZ) 140 141 #define HE_20_RATE_TABLE_INDEX VHT_LAST_RIX_PLUS_ONE 142 #define HE_40_RATE_TABLE_INDEX (HE_20_RATE_TABLE_INDEX + NUM_HE_RIX_PER_BW) 143 #define HE_80_RATE_TABLE_INDEX (HE_40_RATE_TABLE_INDEX + NUM_HE_RIX_PER_BW) 144 145 #define HE_160_RATE_TABLE_INDEX (HE_80_RATE_TABLE_INDEX + NUM_HE_RIX_PER_BW) 146 #define HE_LAST_RIX_PLUS_ONE (HE_160_RATE_TABLE_INDEX + NUM_HE_RIX_FOR_160MHZ) 147 148 #ifdef WLAN_FEATURE_11BE 149 #define NUM_EHT_SPATIAL_STREAM 4 150 #define NUM_EHT_RIX_PER_BW (NUM_EHT_MCS * NUM_EHT_SPATIAL_STREAM) 151 152 #define EHT_20_RATE_TABLE_INDEX HE_LAST_RIX_PLUS_ONE 153 #define EHT_40_RATE_TABLE_INDEX (EHT_20_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 154 #define EHT_60_RATE_TABLE_INDEX (EHT_40_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 155 #define EHT_80_RATE_TABLE_INDEX (EHT_60_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 156 #define EHT_120_RATE_TABLE_INDEX (EHT_80_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 157 #define EHT_140_RATE_TABLE_INDEX (EHT_120_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 158 #define EHT_160_RATE_TABLE_INDEX (EHT_140_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 159 #define EHT_200_RATE_TABLE_INDEX (EHT_160_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 160 #define EHT_240_RATE_TABLE_INDEX (EHT_200_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 161 #define EHT_280_RATE_TABLE_INDEX (EHT_240_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 162 #define EHT_320_RATE_TABLE_INDEX (EHT_280_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 163 #define EHT_LAST_RIX_PLUS_ONE (EHT_320_RATE_TABLE_INDEX + NUM_EHT_RIX_PER_BW) 164 #endif 165 166 #ifdef WLAN_FEATURE_11BE 167 #define DP_RATE_TABLE_SIZE EHT_LAST_RIX_PLUS_ONE 168 #else 169 #define DP_RATE_TABLE_SIZE HE_LAST_RIX_PLUS_ONE 170 #endif 171 172 /* The following would span more than one octet 173 * when 160MHz BW defined for VHT 174 * Also it's important to maintain the ordering of 175 * this enum else it would break other rate adapation functions. 176 */ 177 enum DP_CMN_MODULATION_TYPE { 178 DP_CMN_MOD_IEEE80211_T_DS, /* direct sequence spread spectrum */ 179 DP_CMN_MOD_IEEE80211_T_OFDM, /* frequency division multiplexing */ 180 DP_CMN_MOD_IEEE80211_T_HT_20, 181 DP_CMN_MOD_IEEE80211_T_HT_40, 182 DP_CMN_MOD_IEEE80211_T_VHT_20, 183 DP_CMN_MOD_IEEE80211_T_VHT_40, 184 DP_CMN_MOD_IEEE80211_T_VHT_80, 185 DP_CMN_MOD_IEEE80211_T_VHT_160, 186 DP_CMN_MOD_IEEE80211_T_HE_20, /* 11AX support enabled */ 187 DP_CMN_MOD_IEEE80211_T_HE_40, 188 DP_CMN_MOD_IEEE80211_T_HE_80, 189 DP_CMN_MOD_IEEE80211_T_HE_160, 190 #ifdef WLAN_FEATURE_11BE 191 DP_CMN_MOD_IEEE80211_T_EHT_20, 192 DP_CMN_MOD_IEEE80211_T_EHT_40, 193 DP_CMN_MOD_IEEE80211_T_EHT_60, 194 DP_CMN_MOD_IEEE80211_T_EHT_80, 195 DP_CMN_MOD_IEEE80211_T_EHT_120, 196 DP_CMN_MOD_IEEE80211_T_EHT_140, 197 DP_CMN_MOD_IEEE80211_T_EHT_160, 198 DP_CMN_MOD_IEEE80211_T_EHT_200, 199 DP_CMN_MOD_IEEE80211_T_EHT_240, 200 DP_CMN_MOD_IEEE80211_T_EHT_280, 201 DP_CMN_MOD_IEEE80211_T_EHT_320, 202 #endif 203 DP_CMN_MOD_IEEE80211_T_MAX_PHY 204 }; 205 206 /* more common nomenclature */ 207 #define DP_CMN_MOD_IEEE80211_T_CCK DP_CMN_MOD_IEEE80211_T_DS 208 209 enum HW_RATECODE_PREAM_TYPE { 210 HW_RATECODE_PREAM_OFDM, 211 HW_RATECODE_PREAM_CCK, 212 HW_RATECODE_PREAM_HT, 213 HW_RATECODE_PREAM_VHT, 214 HW_RATECODE_PREAM_HE, 215 #ifdef WLAN_FEATURE_11BE 216 HW_RATECODE_PREAM_EHT, 217 #endif 218 }; 219 220 #ifdef WLAN_FEATURE_11BE 221 enum BW_TYPES_FP { 222 BW_20MHZ_F = 0, 223 BW_40MHZ_F, 224 BW_60MHZ_P, 225 BW_80MHZ_F, 226 BW_120MHZ_P, 227 BW_140MHZ_P, 228 BW_160MHZ_F, 229 BW_200MHZ_P, 230 BW_240MHZ_P, 231 BW_280MHZ_P, 232 BW_320MHZ_F, 233 BW_FP_CNT, 234 BW_FP_LAST = BW_320MHZ_F, 235 }; 236 #endif 237 238 enum DP_CMN_MODULATION_TYPE dp_getmodulation(uint16_t pream_type, 239 uint8_t width, 240 uint8_t punc_mode); 241 242 uint32_t 243 dp_getrateindex(uint32_t gi, uint16_t mcs, uint8_t nss, uint8_t preamble, 244 uint8_t bw, uint8_t punc_bw, uint32_t *rix, uint16_t *ratecode); 245 246 int dp_rate_idx_to_kbps(uint8_t rate_idx, uint8_t gintval); 247 248 #if ALL_POSSIBLE_RATES_SUPPORTED 249 int dp_get_supported_rates(int mode, int shortgi, int **rates); 250 #else 251 int dp_get_supported_rates(int mode, int shortgi, int nss, 252 int ch_width, int **rates); 253 #endif 254 255 #endif /*_DP_RATES_H_*/ 256