1 /* 2 * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com> 3 * 4 * Permission to use, copy, modify, and/or distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 #ifndef _DXE_H_ 18 #define _DXE_H_ 19 20 #include "wcn36xx.h" 21 22 /* 23 TX_LOW = DMA0 24 TX_HIGH = DMA4 25 RX_LOW = DMA1 26 RX_HIGH = DMA3 27 H2H_TEST_RX_TX = DMA2 28 */ 29 30 /* DXE registers */ 31 #define WCN36XX_DXE_MEM_REG 0 32 33 #define WCN36XX_CCU_DXE_INT_SELECT_RIVA 0x310 34 #define WCN36XX_CCU_DXE_INT_SELECT_PRONTO 0x10dc 35 36 /* Descriptor valid */ 37 #define WCN36xx_DXE_CTRL_VLD BIT(0) 38 /* End of packet */ 39 #define WCN36xx_DXE_CTRL_EOP BIT(3) 40 /* BD handling bit */ 41 #define WCN36xx_DXE_CTRL_BDH BIT(4) 42 /* Source is a queue */ 43 #define WCN36xx_DXE_CTRL_SIQ BIT(5) 44 /* Destination is a queue */ 45 #define WCN36xx_DXE_CTRL_DIQ BIT(6) 46 /* Pointer address is a queue */ 47 #define WCN36xx_DXE_CTRL_PIQ BIT(7) 48 /* Release PDU when done */ 49 #define WCN36xx_DXE_CTRL_PDU_REL BIT(8) 50 /* STOP channel processing */ 51 #define WCN36xx_DXE_CTRL_STOP BIT(16) 52 /* INT on descriptor done */ 53 #define WCN36xx_DXE_CTRL_INT BIT(17) 54 /* Endian byte swap enable */ 55 #define WCN36xx_DXE_CTRL_SWAP BIT(20) 56 /* Master endianness */ 57 #define WCN36xx_DXE_CTRL_ENDIANNESS BIT(21) 58 59 /* Transfer type */ 60 #define WCN36xx_DXE_CTRL_XTYPE_SHIFT 1 61 #define WCN36xx_DXE_CTRL_XTYPE_MASK GENMASK(2, WCN36xx_DXE_CTRL_XTYPE_SHIFT) 62 #define WCN36xx_DXE_CTRL_XTYPE_SET(x) ((x) << WCN36xx_DXE_CTRL_XTYPE_SHIFT) 63 64 /* BMU Threshold select */ 65 #define WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT 9 66 #define WCN36xx_DXE_CTRL_BTHLD_SEL_MASK GENMASK(12, WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT) 67 #define WCN36xx_DXE_CTRL_BTHLD_SEL_SET(x) ((x) << WCN36xx_DXE_CTRL_BTHLD_SEL_SHIFT) 68 69 /* Priority */ 70 #define WCN36xx_DXE_CTRL_PRIO_SHIFT 13 71 #define WCN36xx_DXE_CTRL_PRIO_MASK GENMASK(15, WCN36xx_DXE_CTRL_PRIO_SHIFT) 72 #define WCN36xx_DXE_CTRL_PRIO_SET(x) ((x) << WCN36xx_DXE_CTRL_PRIO_SHIFT) 73 74 /* BD Template index */ 75 #define WCN36xx_DXE_CTRL_BDT_IDX_SHIFT 18 76 #define WCN36xx_DXE_CTRL_BDT_IDX_MASK GENMASK(19, WCN36xx_DXE_CTRL_BDT_IDX_SHIFT) 77 #define WCN36xx_DXE_CTRL_BDT_IDX_SET(x) ((x) << WCN36xx_DXE_CTRL_BDT_IDX_SHIFT) 78 79 /* Transfer types: */ 80 /* Host to host */ 81 #define WCN36xx_DXE_XTYPE_H2H (0) 82 /* Host to BMU */ 83 #define WCN36xx_DXE_XTYPE_H2B (2) 84 /* BMU to host */ 85 #define WCN36xx_DXE_XTYPE_B2H (3) 86 87 #define WCN36XX_DXE_CTRL_TX_L (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 88 WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \ 89 WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_INT | \ 90 WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS) 91 92 #define WCN36XX_DXE_CTRL_TX_H (WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 93 WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \ 94 WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \ 95 WCN36xx_DXE_CTRL_SWAP | WCN36xx_DXE_CTRL_ENDIANNESS) 96 97 #define WCN36XX_DXE_CTRL_RX_L (WCN36xx_DXE_CTRL_VLD | \ 98 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \ 99 WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \ 100 WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(6) | \ 101 WCN36xx_DXE_CTRL_PRIO_SET(5) | WCN36xx_DXE_CTRL_INT | \ 102 WCN36xx_DXE_CTRL_SWAP) 103 104 #define WCN36XX_DXE_CTRL_RX_H (WCN36xx_DXE_CTRL_VLD | \ 105 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \ 106 WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_SIQ | \ 107 WCN36xx_DXE_CTRL_PDU_REL | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(8) | \ 108 WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_INT | \ 109 WCN36xx_DXE_CTRL_SWAP) 110 111 #define WCN36XX_DXE_CTRL_TX_H_BD (WCN36xx_DXE_CTRL_VLD | \ 112 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 113 WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | \ 114 WCN36xx_DXE_CTRL_PRIO_SET(6) | WCN36xx_DXE_CTRL_SWAP | \ 115 WCN36xx_DXE_CTRL_ENDIANNESS) 116 117 #define WCN36XX_DXE_CTRL_TX_H_SKB (WCN36xx_DXE_CTRL_VLD | \ 118 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 119 WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \ 120 WCN36xx_DXE_CTRL_BTHLD_SEL_SET(7) | WCN36xx_DXE_CTRL_PRIO_SET(6) | \ 121 WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \ 122 WCN36xx_DXE_CTRL_ENDIANNESS) 123 124 #define WCN36XX_DXE_CTRL_TX_L_BD (WCN36xx_DXE_CTRL_VLD | \ 125 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 126 WCN36xx_DXE_CTRL_DIQ | WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | \ 127 WCN36xx_DXE_CTRL_PRIO_SET(4) | WCN36xx_DXE_CTRL_SWAP | \ 128 WCN36xx_DXE_CTRL_ENDIANNESS) 129 130 #define WCN36XX_DXE_CTRL_TX_L_SKB (WCN36xx_DXE_CTRL_VLD | \ 131 WCN36xx_DXE_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 132 WCN36xx_DXE_CTRL_EOP | WCN36xx_DXE_CTRL_DIQ | \ 133 WCN36xx_DXE_CTRL_BTHLD_SEL_SET(5) | WCN36xx_DXE_CTRL_PRIO_SET(4) | \ 134 WCN36xx_DXE_CTRL_INT | WCN36xx_DXE_CTRL_SWAP | \ 135 WCN36xx_DXE_CTRL_ENDIANNESS) 136 137 /* TODO This must calculated properly but not hardcoded */ 138 #define WCN36XX_DXE_WQ_TX_L 0x17 139 #define WCN36XX_DXE_WQ_TX_H 0x17 140 #define WCN36XX_DXE_WQ_RX_L 0xB 141 #define WCN36XX_DXE_WQ_RX_H 0x4 142 143 /* Channel enable or restart */ 144 #define WCN36xx_DXE_CH_CTRL_EN BIT(0) 145 /* End of packet bit */ 146 #define WCN36xx_DXE_CH_CTRL_EOP BIT(3) 147 /* BD Handling bit */ 148 #define WCN36xx_DXE_CH_CTRL_BDH BIT(4) 149 /* Source is queue */ 150 #define WCN36xx_DXE_CH_CTRL_SIQ BIT(5) 151 /* Destination is queue */ 152 #define WCN36xx_DXE_CH_CTRL_DIQ BIT(6) 153 /* Pointer descriptor is queue */ 154 #define WCN36xx_DXE_CH_CTRL_PIQ BIT(7) 155 /* Relase PDU when done */ 156 #define WCN36xx_DXE_CH_CTRL_PDU_REL BIT(8) 157 /* Stop channel processing */ 158 #define WCN36xx_DXE_CH_CTRL_STOP BIT(16) 159 /* Enable external descriptor interrupt */ 160 #define WCN36xx_DXE_CH_CTRL_INE_ED BIT(17) 161 /* Enable channel interrupt on errors */ 162 #define WCN36xx_DXE_CH_CTRL_INE_ERR BIT(18) 163 /* Enable Channel interrupt when done */ 164 #define WCN36xx_DXE_CH_CTRL_INE_DONE BIT(19) 165 /* External descriptor enable */ 166 #define WCN36xx_DXE_CH_CTRL_EDEN BIT(20) 167 /* Wait for valid bit */ 168 #define WCN36xx_DXE_CH_CTRL_EDVEN BIT(21) 169 /* Endianness is little endian*/ 170 #define WCN36xx_DXE_CH_CTRL_ENDIANNESS BIT(26) 171 /* Abort transfer */ 172 #define WCN36xx_DXE_CH_CTRL_ABORT BIT(27) 173 /* Long descriptor format */ 174 #define WCN36xx_DXE_CH_CTRL_DFMT BIT(28) 175 /* Endian byte swap enable */ 176 #define WCN36xx_DXE_CH_CTRL_SWAP BIT(31) 177 178 /* Transfer type */ 179 #define WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT 1 180 #define WCN36xx_DXE_CH_CTRL_XTYPE_MASK GENMASK(2, WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT) 181 #define WCN36xx_DXE_CH_CTRL_XTYPE_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_XTYPE_SHIFT) 182 183 /* Channel BMU Threshold select */ 184 #define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT 9 185 #define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_MASK GENMASK(12, WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT) 186 #define WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SHIFT) 187 188 /* Channel Priority */ 189 #define WCN36xx_DXE_CH_CTRL_PRIO_SHIFT 13 190 #define WCN36xx_DXE_CH_CTRL_PRIO_MASK GENMASK(15, WCN36xx_DXE_CH_CTRL_PRIO_SHIFT) 191 #define WCN36xx_DXE_CH_CTRL_PRIO_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_PRIO_SHIFT) 192 193 /* Counter select */ 194 #define WCN36xx_DXE_CH_CTRL_SEL_SHIFT 22 195 #define WCN36xx_DXE_CH_CTRL_SEL_MASK GENMASK(25, WCN36xx_DXE_CH_CTRL_SEL_SHIFT) 196 #define WCN36xx_DXE_CH_CTRL_SEL_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_SEL_SHIFT) 197 198 /* Channel BD template index */ 199 #define WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT 29 200 #define WCN36xx_DXE_CH_CTRL_BDT_IDX_MASK GENMASK(30, WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT) 201 #define WCN36xx_DXE_CH_CTRL_BDT_IDX_SET(x) ((x) << WCN36xx_DXE_CH_CTRL_BDT_IDX_SHIFT) 202 203 /* DXE default control register values */ 204 #define WCN36XX_DXE_CH_DEFAULT_CTL_RX_L (WCN36xx_DXE_CH_CTRL_EN | \ 205 WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \ 206 WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_SIQ | \ 207 WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(6) | \ 208 WCN36xx_DXE_CH_CTRL_PRIO_SET(5) | WCN36xx_DXE_CH_CTRL_INE_ED | \ 209 WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \ 210 WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \ 211 WCN36xx_DXE_CH_CTRL_SEL_SET(1) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \ 212 WCN36xx_DXE_CH_CTRL_SWAP) 213 214 #define WCN36XX_DXE_CH_DEFAULT_CTL_RX_H (WCN36xx_DXE_CH_CTRL_EN | \ 215 WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_B2H) | \ 216 WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_SIQ | \ 217 WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(8) | \ 218 WCN36xx_DXE_CH_CTRL_PRIO_SET(6) | WCN36xx_DXE_CH_CTRL_INE_ED | \ 219 WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \ 220 WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \ 221 WCN36xx_DXE_CH_CTRL_SEL_SET(3) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \ 222 WCN36xx_DXE_CH_CTRL_SWAP) 223 224 #define WCN36XX_DXE_CH_DEFAULT_CTL_TX_H (WCN36xx_DXE_CH_CTRL_EN | \ 225 WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 226 WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_DIQ | \ 227 WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(7) | \ 228 WCN36xx_DXE_CH_CTRL_PRIO_SET(6) | WCN36xx_DXE_CH_CTRL_INE_ED | \ 229 WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \ 230 WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \ 231 WCN36xx_DXE_CH_CTRL_SEL_SET(4) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \ 232 WCN36xx_DXE_CH_CTRL_SWAP) 233 234 #define WCN36XX_DXE_CH_DEFAULT_CTL_TX_L (WCN36xx_DXE_CH_CTRL_EN | \ 235 WCN36xx_DXE_CH_CTRL_XTYPE_SET(WCN36xx_DXE_XTYPE_H2B) | \ 236 WCN36xx_DXE_CH_CTRL_EOP | WCN36xx_DXE_CH_CTRL_DIQ | \ 237 WCN36xx_DXE_CH_CTRL_PDU_REL | WCN36xx_DXE_CH_CTRL_BTHLD_SEL_SET(5) | \ 238 WCN36xx_DXE_CH_CTRL_PRIO_SET(4) | WCN36xx_DXE_CH_CTRL_INE_ED | \ 239 WCN36xx_DXE_CH_CTRL_INE_ERR | WCN36xx_DXE_CH_CTRL_INE_DONE | \ 240 WCN36xx_DXE_CH_CTRL_EDEN | WCN36xx_DXE_CH_CTRL_EDVEN | \ 241 WCN36xx_DXE_CH_CTRL_SEL_SET(0) | WCN36xx_DXE_CH_CTRL_ENDIANNESS | \ 242 WCN36xx_DXE_CH_CTRL_SWAP) 243 244 /* Common DXE registers */ 245 #define WCN36XX_DXE_MEM_CSR (WCN36XX_DXE_MEM_REG + 0x00) 246 #define WCN36XX_DXE_REG_CSR_RESET (WCN36XX_DXE_MEM_REG + 0x00) 247 #define WCN36XX_DXE_ENCH_ADDR (WCN36XX_DXE_MEM_REG + 0x04) 248 #define WCN36XX_DXE_REG_CH_EN (WCN36XX_DXE_MEM_REG + 0x08) 249 #define WCN36XX_DXE_REG_CH_DONE (WCN36XX_DXE_MEM_REG + 0x0C) 250 #define WCN36XX_DXE_REG_CH_ERR (WCN36XX_DXE_MEM_REG + 0x10) 251 #define WCN36XX_DXE_INT_MASK_REG (WCN36XX_DXE_MEM_REG + 0x18) 252 #define WCN36XX_DXE_INT_SRC_RAW_REG (WCN36XX_DXE_MEM_REG + 0x20) 253 /* #define WCN36XX_DXE_INT_CH6_MASK 0x00000040 */ 254 /* #define WCN36XX_DXE_INT_CH5_MASK 0x00000020 */ 255 #define WCN36XX_DXE_INT_CH4_MASK 0x00000010 256 #define WCN36XX_DXE_INT_CH3_MASK 0x00000008 257 /* #define WCN36XX_DXE_INT_CH2_MASK 0x00000004 */ 258 #define WCN36XX_DXE_INT_CH1_MASK 0x00000002 259 #define WCN36XX_DXE_INT_CH0_MASK 0x00000001 260 #define WCN36XX_DXE_0_INT_CLR (WCN36XX_DXE_MEM_REG + 0x30) 261 #define WCN36XX_DXE_0_INT_ED_CLR (WCN36XX_DXE_MEM_REG + 0x34) 262 #define WCN36XX_DXE_0_INT_DONE_CLR (WCN36XX_DXE_MEM_REG + 0x38) 263 #define WCN36XX_DXE_0_INT_ERR_CLR (WCN36XX_DXE_MEM_REG + 0x3C) 264 265 #define WCN36XX_CH_STAT_INT_DONE_MASK 0x00008000 266 #define WCN36XX_CH_STAT_INT_ERR_MASK 0x00004000 267 #define WCN36XX_CH_STAT_INT_ED_MASK 0x00002000 268 269 #define WCN36XX_DXE_0_CH0_STATUS (WCN36XX_DXE_MEM_REG + 0x404) 270 #define WCN36XX_DXE_0_CH1_STATUS (WCN36XX_DXE_MEM_REG + 0x444) 271 #define WCN36XX_DXE_0_CH2_STATUS (WCN36XX_DXE_MEM_REG + 0x484) 272 #define WCN36XX_DXE_0_CH3_STATUS (WCN36XX_DXE_MEM_REG + 0x4C4) 273 #define WCN36XX_DXE_0_CH4_STATUS (WCN36XX_DXE_MEM_REG + 0x504) 274 275 #define WCN36XX_DXE_REG_RESET 0x5c89 276 277 /* Temporary BMU Workqueue 4 */ 278 #define WCN36XX_DXE_BMU_WQ_RX_LOW 0xB 279 #define WCN36XX_DXE_BMU_WQ_RX_HIGH 0x4 280 /* DMA channel offset */ 281 #define WCN36XX_DXE_TX_LOW_OFFSET 0x400 282 #define WCN36XX_DXE_TX_HIGH_OFFSET 0x500 283 #define WCN36XX_DXE_RX_LOW_OFFSET 0x440 284 #define WCN36XX_DXE_RX_HIGH_OFFSET 0x4C0 285 286 /* Address of the next DXE descriptor */ 287 #define WCN36XX_DXE_CH_NEXT_DESC_ADDR 0x001C 288 #define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \ 289 WCN36XX_DXE_TX_LOW_OFFSET + \ 290 WCN36XX_DXE_CH_NEXT_DESC_ADDR) 291 #define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \ 292 WCN36XX_DXE_TX_HIGH_OFFSET + \ 293 WCN36XX_DXE_CH_NEXT_DESC_ADDR) 294 #define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \ 295 WCN36XX_DXE_RX_LOW_OFFSET + \ 296 WCN36XX_DXE_CH_NEXT_DESC_ADDR) 297 #define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \ 298 WCN36XX_DXE_RX_HIGH_OFFSET + \ 299 WCN36XX_DXE_CH_NEXT_DESC_ADDR) 300 301 /* DXE Descriptor source address */ 302 #define WCN36XX_DXE_CH_SRC_ADDR 0x000C 303 #define WCN36XX_DXE_CH_SRC_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \ 304 WCN36XX_DXE_RX_LOW_OFFSET + \ 305 WCN36XX_DXE_CH_SRC_ADDR) 306 #define WCN36XX_DXE_CH_SRC_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \ 307 WCN36XX_DXE_RX_HIGH_OFFSET + \ 308 WCN36XX_DXE_CH_SRC_ADDR) 309 310 /* DXE Descriptor address destination address */ 311 #define WCN36XX_DXE_CH_DEST_ADDR 0x0014 312 #define WCN36XX_DXE_CH_DEST_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \ 313 WCN36XX_DXE_TX_LOW_OFFSET + \ 314 WCN36XX_DXE_CH_DEST_ADDR) 315 #define WCN36XX_DXE_CH_DEST_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \ 316 WCN36XX_DXE_TX_HIGH_OFFSET + \ 317 WCN36XX_DXE_CH_DEST_ADDR) 318 #define WCN36XX_DXE_CH_DEST_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \ 319 WCN36XX_DXE_RX_LOW_OFFSET + \ 320 WCN36XX_DXE_CH_DEST_ADDR) 321 #define WCN36XX_DXE_CH_DEST_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \ 322 WCN36XX_DXE_RX_HIGH_OFFSET + \ 323 WCN36XX_DXE_CH_DEST_ADDR) 324 325 /* Interrupt status */ 326 #define WCN36XX_DXE_CH_STATUS_REG_ADDR 0x0004 327 #define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L (WCN36XX_DXE_MEM_REG + \ 328 WCN36XX_DXE_TX_LOW_OFFSET + \ 329 WCN36XX_DXE_CH_STATUS_REG_ADDR) 330 #define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H (WCN36XX_DXE_MEM_REG + \ 331 WCN36XX_DXE_TX_HIGH_OFFSET + \ 332 WCN36XX_DXE_CH_STATUS_REG_ADDR) 333 #define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_L (WCN36XX_DXE_MEM_REG + \ 334 WCN36XX_DXE_RX_LOW_OFFSET + \ 335 WCN36XX_DXE_CH_STATUS_REG_ADDR) 336 #define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_H (WCN36XX_DXE_MEM_REG + \ 337 WCN36XX_DXE_RX_HIGH_OFFSET + \ 338 WCN36XX_DXE_CH_STATUS_REG_ADDR) 339 340 341 /* DXE default control register */ 342 #define WCN36XX_DXE_REG_CTL_RX_L (WCN36XX_DXE_MEM_REG + \ 343 WCN36XX_DXE_RX_LOW_OFFSET) 344 #define WCN36XX_DXE_REG_CTL_RX_H (WCN36XX_DXE_MEM_REG + \ 345 WCN36XX_DXE_RX_HIGH_OFFSET) 346 #define WCN36XX_DXE_REG_CTL_TX_H (WCN36XX_DXE_MEM_REG + \ 347 WCN36XX_DXE_TX_HIGH_OFFSET) 348 #define WCN36XX_DXE_REG_CTL_TX_L (WCN36XX_DXE_MEM_REG + \ 349 WCN36XX_DXE_TX_LOW_OFFSET) 350 351 #define WCN36XX_SMSM_WLAN_TX_ENABLE 0x00000400 352 #define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY 0x00000200 353 354 355 /* Interrupt control channel mask */ 356 #define WCN36XX_INT_MASK_CHAN_TX_L 0x00000001 357 #define WCN36XX_INT_MASK_CHAN_RX_L 0x00000002 358 #define WCN36XX_INT_MASK_CHAN_RX_H 0x00000008 359 #define WCN36XX_INT_MASK_CHAN_TX_H 0x00000010 360 361 #define WCN36XX_BD_CHUNK_SIZE 128 362 363 #define WCN36XX_PKT_SIZE 0xF20 364 enum wcn36xx_dxe_ch_type { 365 WCN36XX_DXE_CH_TX_L, 366 WCN36XX_DXE_CH_TX_H, 367 WCN36XX_DXE_CH_RX_L, 368 WCN36XX_DXE_CH_RX_H 369 }; 370 371 /* amount of descriptors per channel */ 372 enum wcn36xx_dxe_ch_desc_num { 373 WCN36XX_DXE_CH_DESC_NUMB_TX_L = 128, 374 WCN36XX_DXE_CH_DESC_NUMB_TX_H = 10, 375 WCN36XX_DXE_CH_DESC_NUMB_RX_L = 512, 376 WCN36XX_DXE_CH_DESC_NUMB_RX_H = 40 377 }; 378 379 /** 380 * struct wcn36xx_dxe_desc - describes descriptor of one DXE buffer 381 * 382 * @ctrl: is a union that consists of following bits: 383 * union { 384 * u32 valid :1; //0 = DMA stop, 1 = DMA continue with this 385 * //descriptor 386 * u32 transfer_type :2; //0 = Host to Host space 387 * u32 eop :1; //End of Packet 388 * u32 bd_handling :1; //if transferType = Host to BMU, then 0 389 * // means first 128 bytes contain BD, and 1 390 * // means create new empty BD 391 * u32 siq :1; // SIQ 392 * u32 diq :1; // DIQ 393 * u32 pdu_rel :1; //0 = don't release BD and PDUs when done, 394 * // 1 = release them 395 * u32 bthld_sel :4; //BMU Threshold Select 396 * u32 prio :3; //Specifies the priority level to use for 397 * // the transfer 398 * u32 stop_channel :1; //1 = DMA stops processing further, channel 399 * //requires re-enabling after this 400 * u32 intr :1; //Interrupt on Descriptor Done 401 * u32 rsvd :1; //reserved 402 * u32 size :14;//14 bits used - ignored for BMU transfers, 403 * //only used for host to host transfers? 404 * } ctrl; 405 */ 406 struct wcn36xx_dxe_desc { 407 u32 ctrl; 408 u32 fr_len; 409 410 u32 src_addr_l; 411 u32 dst_addr_l; 412 u32 phy_next_l; 413 u32 src_addr_h; 414 u32 dst_addr_h; 415 u32 phy_next_h; 416 } __packed; 417 418 /* DXE Control block */ 419 struct wcn36xx_dxe_ctl { 420 struct wcn36xx_dxe_ctl *next; 421 struct wcn36xx_dxe_desc *desc; 422 unsigned int desc_phy_addr; 423 int ctl_blk_order; 424 struct sk_buff *skb; 425 void *bd_cpu_addr; 426 dma_addr_t bd_phy_addr; 427 }; 428 429 struct wcn36xx_dxe_ch { 430 spinlock_t lock; /* protects head/tail ptrs */ 431 enum wcn36xx_dxe_ch_type ch_type; 432 void *cpu_addr; 433 dma_addr_t dma_addr; 434 enum wcn36xx_dxe_ch_desc_num desc_num; 435 /* DXE control block ring */ 436 struct wcn36xx_dxe_ctl *head_blk_ctl; 437 struct wcn36xx_dxe_ctl *tail_blk_ctl; 438 439 /* DXE channel specific configs */ 440 u32 dxe_wq; 441 u32 ctrl_bd; 442 u32 ctrl_skb; 443 u32 reg_ctrl; 444 u32 def_ctrl; 445 }; 446 447 /* Memory Pool for BD headers */ 448 struct wcn36xx_dxe_mem_pool { 449 int chunk_size; 450 void *virt_addr; 451 dma_addr_t phy_addr; 452 }; 453 454 struct wcn36xx_tx_bd; 455 struct wcn36xx_vif; 456 int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn); 457 void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn); 458 void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn); 459 int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn); 460 void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn); 461 int wcn36xx_dxe_init(struct wcn36xx *wcn); 462 void wcn36xx_dxe_deinit(struct wcn36xx *wcn); 463 int wcn36xx_dxe_init_channels(struct wcn36xx *wcn); 464 int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn, 465 struct wcn36xx_vif *vif_priv, 466 struct wcn36xx_tx_bd *bd, 467 struct sk_buff *skb, 468 bool is_low); 469 int wcn36xx_dxe_tx_flush(struct wcn36xx *wcn); 470 void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status); 471 #endif /* _DXE_H_ */ 472