1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * NXP Wireless LAN device driver: SDIO specific handling 4 * 5 * Copyright 2011-2020 NXP 6 */ 7 8 #include <linux/firmware.h> 9 10 #include "decl.h" 11 #include "ioctl.h" 12 #include "util.h" 13 #include "fw.h" 14 #include "main.h" 15 #include "wmm.h" 16 #include "11n.h" 17 #include "sdio.h" 18 19 20 #define SDIO_VERSION "1.0" 21 22 static void mwifiex_sdio_work(struct work_struct *work); 23 24 static struct mwifiex_if_ops sdio_ops; 25 26 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = { 27 .start_rd_port = 1, 28 .start_wr_port = 1, 29 .base_0_reg = 0x0040, 30 .base_1_reg = 0x0041, 31 .poll_reg = 0x30, 32 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK, 33 .host_int_rsr_reg = 0x1, 34 .host_int_mask_reg = 0x02, 35 .host_int_status_reg = 0x03, 36 .status_reg_0 = 0x60, 37 .status_reg_1 = 0x61, 38 .sdio_int_mask = 0x3f, 39 .data_port_mask = 0x0000fffe, 40 .io_port_0_reg = 0x78, 41 .io_port_1_reg = 0x79, 42 .io_port_2_reg = 0x7A, 43 .max_mp_regs = 64, 44 .rd_bitmap_l = 0x04, 45 .rd_bitmap_u = 0x05, 46 .wr_bitmap_l = 0x06, 47 .wr_bitmap_u = 0x07, 48 .rd_len_p0_l = 0x08, 49 .rd_len_p0_u = 0x09, 50 .card_misc_cfg_reg = 0x6c, 51 .func1_dump_reg_start = 0x0, 52 .func1_dump_reg_end = 0x9, 53 .func1_scratch_reg = 0x60, 54 .func1_spec_reg_num = 5, 55 .func1_spec_reg_table = {0x28, 0x30, 0x34, 0x38, 0x3c}, 56 }; 57 58 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = { 59 .start_rd_port = 0, 60 .start_wr_port = 0, 61 .base_0_reg = 0x60, 62 .base_1_reg = 0x61, 63 .poll_reg = 0x50, 64 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 65 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 66 .host_int_rsr_reg = 0x1, 67 .host_int_status_reg = 0x03, 68 .host_int_mask_reg = 0x02, 69 .status_reg_0 = 0xc0, 70 .status_reg_1 = 0xc1, 71 .sdio_int_mask = 0xff, 72 .data_port_mask = 0xffffffff, 73 .io_port_0_reg = 0xD8, 74 .io_port_1_reg = 0xD9, 75 .io_port_2_reg = 0xDA, 76 .max_mp_regs = 184, 77 .rd_bitmap_l = 0x04, 78 .rd_bitmap_u = 0x05, 79 .rd_bitmap_1l = 0x06, 80 .rd_bitmap_1u = 0x07, 81 .wr_bitmap_l = 0x08, 82 .wr_bitmap_u = 0x09, 83 .wr_bitmap_1l = 0x0a, 84 .wr_bitmap_1u = 0x0b, 85 .rd_len_p0_l = 0x0c, 86 .rd_len_p0_u = 0x0d, 87 .card_misc_cfg_reg = 0xcc, 88 .card_cfg_2_1_reg = 0xcd, 89 .cmd_rd_len_0 = 0xb4, 90 .cmd_rd_len_1 = 0xb5, 91 .cmd_rd_len_2 = 0xb6, 92 .cmd_rd_len_3 = 0xb7, 93 .cmd_cfg_0 = 0xb8, 94 .cmd_cfg_1 = 0xb9, 95 .cmd_cfg_2 = 0xba, 96 .cmd_cfg_3 = 0xbb, 97 .fw_dump_host_ready = 0xee, 98 .fw_dump_ctrl = 0xe2, 99 .fw_dump_start = 0xe3, 100 .fw_dump_end = 0xea, 101 .func1_dump_reg_start = 0x0, 102 .func1_dump_reg_end = 0xb, 103 .func1_scratch_reg = 0xc0, 104 .func1_spec_reg_num = 8, 105 .func1_spec_reg_table = {0x4C, 0x50, 0x54, 0x55, 0x58, 106 0x59, 0x5c, 0x5d}, 107 }; 108 109 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8977 = { 110 .start_rd_port = 0, 111 .start_wr_port = 0, 112 .base_0_reg = 0xF8, 113 .base_1_reg = 0xF9, 114 .poll_reg = 0x5C, 115 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 116 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 117 .host_int_rsr_reg = 0x4, 118 .host_int_status_reg = 0x0C, 119 .host_int_mask_reg = 0x08, 120 .status_reg_0 = 0xE8, 121 .status_reg_1 = 0xE9, 122 .sdio_int_mask = 0xff, 123 .data_port_mask = 0xffffffff, 124 .io_port_0_reg = 0xE4, 125 .io_port_1_reg = 0xE5, 126 .io_port_2_reg = 0xE6, 127 .max_mp_regs = 196, 128 .rd_bitmap_l = 0x10, 129 .rd_bitmap_u = 0x11, 130 .rd_bitmap_1l = 0x12, 131 .rd_bitmap_1u = 0x13, 132 .wr_bitmap_l = 0x14, 133 .wr_bitmap_u = 0x15, 134 .wr_bitmap_1l = 0x16, 135 .wr_bitmap_1u = 0x17, 136 .rd_len_p0_l = 0x18, 137 .rd_len_p0_u = 0x19, 138 .card_misc_cfg_reg = 0xd8, 139 .card_cfg_2_1_reg = 0xd9, 140 .cmd_rd_len_0 = 0xc0, 141 .cmd_rd_len_1 = 0xc1, 142 .cmd_rd_len_2 = 0xc2, 143 .cmd_rd_len_3 = 0xc3, 144 .cmd_cfg_0 = 0xc4, 145 .cmd_cfg_1 = 0xc5, 146 .cmd_cfg_2 = 0xc6, 147 .cmd_cfg_3 = 0xc7, 148 .fw_dump_host_ready = 0xcc, 149 .fw_dump_ctrl = 0xf0, 150 .fw_dump_start = 0xf1, 151 .fw_dump_end = 0xf8, 152 .func1_dump_reg_start = 0x10, 153 .func1_dump_reg_end = 0x17, 154 .func1_scratch_reg = 0xe8, 155 .func1_spec_reg_num = 13, 156 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 157 0x60, 0x61, 0x62, 0x64, 158 0x65, 0x66, 0x68, 0x69, 159 0x6a}, 160 }; 161 162 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8997 = { 163 .start_rd_port = 0, 164 .start_wr_port = 0, 165 .base_0_reg = 0xF8, 166 .base_1_reg = 0xF9, 167 .poll_reg = 0x5C, 168 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 169 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 170 .host_int_rsr_reg = 0x4, 171 .host_int_status_reg = 0x0C, 172 .host_int_mask_reg = 0x08, 173 .host_strap_reg = 0xF4, 174 .host_strap_mask = 0x01, 175 .host_strap_value = 0x00, 176 .status_reg_0 = 0xE8, 177 .status_reg_1 = 0xE9, 178 .sdio_int_mask = 0xff, 179 .data_port_mask = 0xffffffff, 180 .io_port_0_reg = 0xE4, 181 .io_port_1_reg = 0xE5, 182 .io_port_2_reg = 0xE6, 183 .max_mp_regs = 196, 184 .rd_bitmap_l = 0x10, 185 .rd_bitmap_u = 0x11, 186 .rd_bitmap_1l = 0x12, 187 .rd_bitmap_1u = 0x13, 188 .wr_bitmap_l = 0x14, 189 .wr_bitmap_u = 0x15, 190 .wr_bitmap_1l = 0x16, 191 .wr_bitmap_1u = 0x17, 192 .rd_len_p0_l = 0x18, 193 .rd_len_p0_u = 0x19, 194 .card_misc_cfg_reg = 0xd8, 195 .card_cfg_2_1_reg = 0xd9, 196 .cmd_rd_len_0 = 0xc0, 197 .cmd_rd_len_1 = 0xc1, 198 .cmd_rd_len_2 = 0xc2, 199 .cmd_rd_len_3 = 0xc3, 200 .cmd_cfg_0 = 0xc4, 201 .cmd_cfg_1 = 0xc5, 202 .cmd_cfg_2 = 0xc6, 203 .cmd_cfg_3 = 0xc7, 204 .fw_dump_host_ready = 0xcc, 205 .fw_dump_ctrl = 0xf0, 206 .fw_dump_start = 0xf1, 207 .fw_dump_end = 0xf8, 208 .func1_dump_reg_start = 0x10, 209 .func1_dump_reg_end = 0x17, 210 .func1_scratch_reg = 0xe8, 211 .func1_spec_reg_num = 13, 212 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 213 0x60, 0x61, 0x62, 0x64, 214 0x65, 0x66, 0x68, 0x69, 215 0x6a}, 216 }; 217 218 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8887 = { 219 .start_rd_port = 0, 220 .start_wr_port = 0, 221 .base_0_reg = 0x6C, 222 .base_1_reg = 0x6D, 223 .poll_reg = 0x5C, 224 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 225 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 226 .host_int_rsr_reg = 0x4, 227 .host_int_status_reg = 0x0C, 228 .host_int_mask_reg = 0x08, 229 .status_reg_0 = 0x90, 230 .status_reg_1 = 0x91, 231 .sdio_int_mask = 0xff, 232 .data_port_mask = 0xffffffff, 233 .io_port_0_reg = 0xE4, 234 .io_port_1_reg = 0xE5, 235 .io_port_2_reg = 0xE6, 236 .max_mp_regs = 196, 237 .rd_bitmap_l = 0x10, 238 .rd_bitmap_u = 0x11, 239 .rd_bitmap_1l = 0x12, 240 .rd_bitmap_1u = 0x13, 241 .wr_bitmap_l = 0x14, 242 .wr_bitmap_u = 0x15, 243 .wr_bitmap_1l = 0x16, 244 .wr_bitmap_1u = 0x17, 245 .rd_len_p0_l = 0x18, 246 .rd_len_p0_u = 0x19, 247 .card_misc_cfg_reg = 0xd8, 248 .card_cfg_2_1_reg = 0xd9, 249 .cmd_rd_len_0 = 0xc0, 250 .cmd_rd_len_1 = 0xc1, 251 .cmd_rd_len_2 = 0xc2, 252 .cmd_rd_len_3 = 0xc3, 253 .cmd_cfg_0 = 0xc4, 254 .cmd_cfg_1 = 0xc5, 255 .cmd_cfg_2 = 0xc6, 256 .cmd_cfg_3 = 0xc7, 257 .func1_dump_reg_start = 0x10, 258 .func1_dump_reg_end = 0x17, 259 .func1_scratch_reg = 0x90, 260 .func1_spec_reg_num = 13, 261 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60, 262 0x61, 0x62, 0x64, 0x65, 0x66, 263 0x68, 0x69, 0x6a}, 264 }; 265 266 static const struct mwifiex_sdio_card_reg mwifiex_reg_sd89xx = { 267 .start_rd_port = 0, 268 .start_wr_port = 0, 269 .base_0_reg = 0xF8, 270 .base_1_reg = 0xF9, 271 .poll_reg = 0x5C, 272 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 273 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 274 .host_int_rsr_reg = 0x4, 275 .host_int_status_reg = 0x0C, 276 .host_int_mask_reg = 0x08, 277 .host_strap_reg = 0xF4, 278 .host_strap_mask = 0x01, 279 .host_strap_value = 0x00, 280 .status_reg_0 = 0xE8, 281 .status_reg_1 = 0xE9, 282 .sdio_int_mask = 0xff, 283 .data_port_mask = 0xffffffff, 284 .io_port_0_reg = 0xE4, 285 .io_port_1_reg = 0xE5, 286 .io_port_2_reg = 0xE6, 287 .max_mp_regs = 196, 288 .rd_bitmap_l = 0x10, 289 .rd_bitmap_u = 0x11, 290 .rd_bitmap_1l = 0x12, 291 .rd_bitmap_1u = 0x13, 292 .wr_bitmap_l = 0x14, 293 .wr_bitmap_u = 0x15, 294 .wr_bitmap_1l = 0x16, 295 .wr_bitmap_1u = 0x17, 296 .rd_len_p0_l = 0x18, 297 .rd_len_p0_u = 0x19, 298 .card_misc_cfg_reg = 0xd8, 299 .card_cfg_2_1_reg = 0xd9, 300 .cmd_rd_len_0 = 0xc0, 301 .cmd_rd_len_1 = 0xc1, 302 .cmd_rd_len_2 = 0xc2, 303 .cmd_rd_len_3 = 0xc3, 304 .cmd_cfg_0 = 0xc4, 305 .cmd_cfg_1 = 0xc5, 306 .cmd_cfg_2 = 0xc6, 307 .cmd_cfg_3 = 0xc7, 308 .fw_dump_host_ready = 0xcc, 309 .fw_dump_ctrl = 0xf9, 310 .fw_dump_start = 0xf1, 311 .fw_dump_end = 0xf8, 312 .func1_dump_reg_start = 0x10, 313 .func1_dump_reg_end = 0x17, 314 .func1_scratch_reg = 0xE8, 315 .func1_spec_reg_num = 13, 316 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60, 317 0x61, 0x62, 0x64, 0x65, 0x66, 318 0x68, 0x69, 0x6a}, 319 }; 320 321 static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = { 322 .firmware = SD8786_DEFAULT_FW_NAME, 323 .reg = &mwifiex_reg_sd87xx, 324 .max_ports = 16, 325 .mp_agg_pkt_limit = 8, 326 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 327 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 328 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 329 .supports_sdio_new_mode = false, 330 .has_control_mask = true, 331 .can_dump_fw = false, 332 .can_auto_tdls = false, 333 .can_ext_scan = false, 334 }; 335 336 static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = { 337 .firmware = SD8787_DEFAULT_FW_NAME, 338 .reg = &mwifiex_reg_sd87xx, 339 .max_ports = 16, 340 .mp_agg_pkt_limit = 8, 341 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 342 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 343 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 344 .supports_sdio_new_mode = false, 345 .has_control_mask = true, 346 .can_dump_fw = false, 347 .can_auto_tdls = false, 348 .can_ext_scan = true, 349 }; 350 351 static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = { 352 .firmware = SD8797_DEFAULT_FW_NAME, 353 .reg = &mwifiex_reg_sd87xx, 354 .max_ports = 16, 355 .mp_agg_pkt_limit = 8, 356 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 357 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 358 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 359 .supports_sdio_new_mode = false, 360 .has_control_mask = true, 361 .can_dump_fw = false, 362 .can_auto_tdls = false, 363 .can_ext_scan = true, 364 }; 365 366 static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = { 367 .firmware = SD8897_DEFAULT_FW_NAME, 368 .reg = &mwifiex_reg_sd8897, 369 .max_ports = 32, 370 .mp_agg_pkt_limit = 16, 371 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 372 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 373 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 374 .supports_sdio_new_mode = true, 375 .has_control_mask = false, 376 .can_dump_fw = true, 377 .can_auto_tdls = false, 378 .can_ext_scan = true, 379 }; 380 381 static const struct mwifiex_sdio_device mwifiex_sdio_sd8977 = { 382 .firmware = SD8977_DEFAULT_FW_NAME, 383 .reg = &mwifiex_reg_sd8977, 384 .max_ports = 32, 385 .mp_agg_pkt_limit = 16, 386 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 387 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 388 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 389 .supports_sdio_new_mode = true, 390 .has_control_mask = false, 391 .can_dump_fw = true, 392 .fw_dump_enh = true, 393 .can_auto_tdls = false, 394 .can_ext_scan = true, 395 }; 396 397 static const struct mwifiex_sdio_device mwifiex_sdio_sd8978 = { 398 .firmware_sdiouart = SD8978_SDIOUART_FW_NAME, 399 .reg = &mwifiex_reg_sd89xx, 400 .max_ports = 32, 401 .mp_agg_pkt_limit = 16, 402 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 403 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 404 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 405 .supports_sdio_new_mode = true, 406 .has_control_mask = false, 407 .can_dump_fw = true, 408 .fw_dump_enh = true, 409 .can_auto_tdls = false, 410 .can_ext_scan = true, 411 }; 412 413 static const struct mwifiex_sdio_device mwifiex_sdio_sd8997 = { 414 .firmware = SD8997_DEFAULT_FW_NAME, 415 .firmware_sdiouart = SD8997_SDIOUART_FW_NAME, 416 .reg = &mwifiex_reg_sd8997, 417 .max_ports = 32, 418 .mp_agg_pkt_limit = 16, 419 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 420 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 421 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 422 .supports_sdio_new_mode = true, 423 .has_control_mask = false, 424 .can_dump_fw = true, 425 .fw_dump_enh = true, 426 .can_auto_tdls = false, 427 .can_ext_scan = true, 428 }; 429 430 static const struct mwifiex_sdio_device mwifiex_sdio_sd8887 = { 431 .firmware = SD8887_DEFAULT_FW_NAME, 432 .reg = &mwifiex_reg_sd8887, 433 .max_ports = 32, 434 .mp_agg_pkt_limit = 16, 435 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 436 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K, 437 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K, 438 .supports_sdio_new_mode = true, 439 .has_control_mask = false, 440 .can_dump_fw = false, 441 .can_auto_tdls = true, 442 .can_ext_scan = true, 443 }; 444 445 static const struct mwifiex_sdio_device mwifiex_sdio_sd8987 = { 446 .firmware = SD8987_DEFAULT_FW_NAME, 447 .reg = &mwifiex_reg_sd89xx, 448 .max_ports = 32, 449 .mp_agg_pkt_limit = 16, 450 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 451 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 452 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 453 .supports_sdio_new_mode = true, 454 .has_control_mask = false, 455 .can_dump_fw = true, 456 .fw_dump_enh = true, 457 .can_auto_tdls = true, 458 .can_ext_scan = true, 459 }; 460 461 static const struct mwifiex_sdio_device mwifiex_sdio_sd8801 = { 462 .firmware = SD8801_DEFAULT_FW_NAME, 463 .reg = &mwifiex_reg_sd87xx, 464 .max_ports = 16, 465 .mp_agg_pkt_limit = 8, 466 .supports_sdio_new_mode = false, 467 .has_control_mask = true, 468 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 469 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 470 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 471 .can_dump_fw = false, 472 .can_auto_tdls = false, 473 .can_ext_scan = true, 474 }; 475 476 static struct memory_type_mapping generic_mem_type_map[] = { 477 {"DUMP", NULL, 0, 0xDD}, 478 }; 479 480 static struct memory_type_mapping mem_type_mapping_tbl[] = { 481 {"ITCM", NULL, 0, 0xF0}, 482 {"DTCM", NULL, 0, 0xF1}, 483 {"SQRAM", NULL, 0, 0xF2}, 484 {"APU", NULL, 0, 0xF3}, 485 {"CIU", NULL, 0, 0xF4}, 486 {"ICU", NULL, 0, 0xF5}, 487 {"MAC", NULL, 0, 0xF6}, 488 {"EXT7", NULL, 0, 0xF7}, 489 {"EXT8", NULL, 0, 0xF8}, 490 {"EXT9", NULL, 0, 0xF9}, 491 {"EXT10", NULL, 0, 0xFA}, 492 {"EXT11", NULL, 0, 0xFB}, 493 {"EXT12", NULL, 0, 0xFC}, 494 {"EXT13", NULL, 0, 0xFD}, 495 {"EXTLAST", NULL, 0, 0xFE}, 496 }; 497 498 static const struct of_device_id mwifiex_sdio_of_match_table[] __maybe_unused = { 499 { .compatible = "marvell,sd8787" }, 500 { .compatible = "marvell,sd8897" }, 501 { .compatible = "marvell,sd8978" }, 502 { .compatible = "marvell,sd8997" }, 503 { .compatible = "nxp,iw416" }, 504 { } 505 }; 506 507 /* This function parse device tree node using mmc subnode devicetree API. 508 * The device node is saved in card->plt_of_node. 509 * if the device tree node exist and include interrupts attributes, this 510 * function will also request platform specific wakeup interrupt. 511 */ 512 static int mwifiex_sdio_probe_of(struct device *dev) 513 { 514 if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) { 515 dev_err(dev, "required compatible string missing\n"); 516 return -EINVAL; 517 } 518 519 return 0; 520 } 521 522 /* 523 * SDIO probe. 524 * 525 * This function probes an mwifiex device and registers it. It allocates 526 * the card structure, enables SDIO function number and initiates the 527 * device registration and initialization procedure by adding a logical 528 * interface. 529 */ 530 static int 531 mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) 532 { 533 int ret; 534 struct sdio_mmc_card *card = NULL; 535 536 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", 537 func->vendor, func->device, func->class, func->num); 538 539 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); 540 if (!card) 541 return -ENOMEM; 542 543 init_completion(&card->fw_done); 544 545 card->func = func; 546 547 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; 548 549 if (id->driver_data) { 550 struct mwifiex_sdio_device *data = (void *)id->driver_data; 551 552 card->firmware = data->firmware; 553 card->firmware_sdiouart = data->firmware_sdiouart; 554 card->reg = data->reg; 555 card->max_ports = data->max_ports; 556 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit; 557 card->supports_sdio_new_mode = data->supports_sdio_new_mode; 558 card->has_control_mask = data->has_control_mask; 559 card->tx_buf_size = data->tx_buf_size; 560 card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size; 561 card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size; 562 card->can_dump_fw = data->can_dump_fw; 563 card->fw_dump_enh = data->fw_dump_enh; 564 card->can_auto_tdls = data->can_auto_tdls; 565 card->can_ext_scan = data->can_ext_scan; 566 INIT_WORK(&card->work, mwifiex_sdio_work); 567 } 568 569 sdio_claim_host(func); 570 ret = sdio_enable_func(func); 571 sdio_release_host(func); 572 573 if (ret) { 574 dev_err(&func->dev, "failed to enable function\n"); 575 return ret; 576 } 577 578 /* device tree node parsing and platform specific configuration*/ 579 if (func->dev.of_node) { 580 ret = mwifiex_sdio_probe_of(&func->dev); 581 if (ret) 582 goto err_disable; 583 } 584 585 ret = mwifiex_add_card(card, &card->fw_done, &sdio_ops, 586 MWIFIEX_SDIO, &func->dev); 587 if (ret) { 588 dev_err(&func->dev, "add card failed\n"); 589 goto err_disable; 590 } 591 592 return 0; 593 594 err_disable: 595 sdio_claim_host(func); 596 sdio_disable_func(func); 597 sdio_release_host(func); 598 599 return ret; 600 } 601 602 /* 603 * SDIO resume. 604 * 605 * Kernel needs to suspend all functions separately. Therefore all 606 * registered functions must have drivers with suspend and resume 607 * methods. Failing that the kernel simply removes the whole card. 608 * 609 * If already not resumed, this function turns on the traffic and 610 * sends a host sleep cancel request to the firmware. 611 */ 612 static int mwifiex_sdio_resume(struct device *dev) 613 { 614 struct sdio_func *func = dev_to_sdio_func(dev); 615 struct sdio_mmc_card *card; 616 struct mwifiex_adapter *adapter; 617 618 card = sdio_get_drvdata(func); 619 if (!card || !card->adapter) { 620 dev_err(dev, "resume: invalid card or adapter\n"); 621 return 0; 622 } 623 624 adapter = card->adapter; 625 626 if (!test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { 627 mwifiex_dbg(adapter, WARN, 628 "device already resumed\n"); 629 return 0; 630 } 631 632 clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); 633 634 /* Disable Host Sleep */ 635 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), 636 MWIFIEX_SYNC_CMD); 637 638 mwifiex_disable_wake(adapter); 639 640 return 0; 641 } 642 643 /* Write data into SDIO card register. Caller claims SDIO device. */ 644 static int 645 mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) 646 { 647 int ret = -1; 648 649 sdio_writeb(func, data, reg, &ret); 650 return ret; 651 } 652 653 /* This function writes data into SDIO card register. 654 */ 655 static int 656 mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) 657 { 658 struct sdio_mmc_card *card = adapter->card; 659 int ret; 660 661 sdio_claim_host(card->func); 662 ret = mwifiex_write_reg_locked(card->func, reg, data); 663 sdio_release_host(card->func); 664 665 return ret; 666 } 667 668 /* This function reads data from SDIO card register. 669 */ 670 static int 671 mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) 672 { 673 struct sdio_mmc_card *card = adapter->card; 674 int ret = -1; 675 u8 val; 676 677 sdio_claim_host(card->func); 678 val = sdio_readb(card->func, reg, &ret); 679 sdio_release_host(card->func); 680 681 *data = val; 682 683 return ret; 684 } 685 686 /* This function writes multiple data into SDIO card memory. 687 * 688 * This does not work in suspended mode. 689 */ 690 static int 691 mwifiex_write_data_sync(struct mwifiex_adapter *adapter, 692 u8 *buffer, u32 pkt_len, u32 port) 693 { 694 struct sdio_mmc_card *card = adapter->card; 695 int ret; 696 u8 blk_mode = 697 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; 698 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; 699 u32 blk_cnt = 700 (blk_mode == 701 BLOCK_MODE) ? (pkt_len / 702 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; 703 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); 704 705 if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { 706 mwifiex_dbg(adapter, ERROR, 707 "%s: not allowed while suspended\n", __func__); 708 return -1; 709 } 710 711 sdio_claim_host(card->func); 712 713 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); 714 715 sdio_release_host(card->func); 716 717 return ret; 718 } 719 720 /* This function reads multiple data from SDIO card memory. 721 */ 722 static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, 723 u32 len, u32 port, u8 claim) 724 { 725 struct sdio_mmc_card *card = adapter->card; 726 int ret; 727 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE 728 : BLOCK_MODE; 729 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; 730 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) 731 : len; 732 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); 733 734 if (claim) 735 sdio_claim_host(card->func); 736 737 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); 738 739 if (claim) 740 sdio_release_host(card->func); 741 742 return ret; 743 } 744 745 /* This function reads the firmware status. 746 */ 747 static int 748 mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) 749 { 750 struct sdio_mmc_card *card = adapter->card; 751 const struct mwifiex_sdio_card_reg *reg = card->reg; 752 u8 fws0, fws1; 753 754 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) 755 return -1; 756 757 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) 758 return -1; 759 760 *dat = (u16)((fws1 << 8) | fws0); 761 return 0; 762 } 763 764 /* This function checks the firmware status in card. 765 */ 766 static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, 767 u32 poll_num) 768 { 769 int ret = 0; 770 u16 firmware_stat; 771 u32 tries; 772 773 for (tries = 0; tries < poll_num; tries++) { 774 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); 775 if (ret) 776 continue; 777 if (firmware_stat == FIRMWARE_READY_SDIO) { 778 ret = 0; 779 break; 780 } 781 782 msleep(100); 783 ret = -1; 784 } 785 786 return ret; 787 } 788 789 /* This function checks if WLAN is the winner. 790 */ 791 static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter) 792 { 793 int ret = 0; 794 u8 winner = 0; 795 struct sdio_mmc_card *card = adapter->card; 796 797 if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner)) 798 return -1; 799 800 if (winner) 801 adapter->winner = 0; 802 else 803 adapter->winner = 1; 804 805 return ret; 806 } 807 808 /* 809 * SDIO remove. 810 * 811 * This function removes the interface and frees up the card structure. 812 */ 813 static void 814 mwifiex_sdio_remove(struct sdio_func *func) 815 { 816 struct sdio_mmc_card *card; 817 struct mwifiex_adapter *adapter; 818 struct mwifiex_private *priv; 819 int ret = 0; 820 u16 firmware_stat; 821 822 card = sdio_get_drvdata(func); 823 if (!card) 824 return; 825 826 wait_for_completion(&card->fw_done); 827 828 adapter = card->adapter; 829 if (!adapter || !adapter->priv_num) 830 return; 831 832 mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num); 833 834 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); 835 if (!ret && firmware_stat == FIRMWARE_READY_SDIO && 836 !adapter->mfg_mode) { 837 mwifiex_deauthenticate_all(adapter); 838 839 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 840 mwifiex_disable_auto_ds(priv); 841 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); 842 } 843 844 mwifiex_remove_card(adapter); 845 } 846 847 /* 848 * SDIO suspend. 849 * 850 * Kernel needs to suspend all functions separately. Therefore all 851 * registered functions must have drivers with suspend and resume 852 * methods. Failing that the kernel simply removes the whole card. 853 * 854 * If already not suspended, this function allocates and sends a host 855 * sleep activate request to the firmware and turns off the traffic. 856 */ 857 static int mwifiex_sdio_suspend(struct device *dev) 858 { 859 struct sdio_func *func = dev_to_sdio_func(dev); 860 struct sdio_mmc_card *card; 861 struct mwifiex_adapter *adapter; 862 mmc_pm_flag_t pm_flag = 0; 863 int ret = 0; 864 865 pm_flag = sdio_get_host_pm_caps(func); 866 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n", 867 sdio_func_id(func), pm_flag); 868 if (!(pm_flag & MMC_PM_KEEP_POWER)) { 869 dev_err(dev, "%s: cannot remain alive while host is" 870 " suspended\n", sdio_func_id(func)); 871 return -ENOSYS; 872 } 873 874 card = sdio_get_drvdata(func); 875 if (!card) { 876 dev_err(dev, "suspend: invalid card\n"); 877 return 0; 878 } 879 880 /* Might still be loading firmware */ 881 wait_for_completion(&card->fw_done); 882 883 adapter = card->adapter; 884 if (!adapter) { 885 dev_err(dev, "adapter is not valid\n"); 886 return 0; 887 } 888 889 if (!adapter->is_up) 890 return -EBUSY; 891 892 mwifiex_enable_wake(adapter); 893 894 /* Enable the Host Sleep */ 895 if (!mwifiex_enable_hs(adapter)) { 896 mwifiex_dbg(adapter, ERROR, 897 "cmd: failed to suspend\n"); 898 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 899 mwifiex_disable_wake(adapter); 900 return -EFAULT; 901 } 902 903 mwifiex_dbg(adapter, INFO, 904 "cmd: suspend with MMC_PM_KEEP_POWER\n"); 905 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); 906 907 /* Indicate device suspended */ 908 set_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); 909 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 910 911 return ret; 912 } 913 914 static void mwifiex_sdio_coredump(struct device *dev) 915 { 916 struct sdio_func *func = dev_to_sdio_func(dev); 917 struct sdio_mmc_card *card; 918 919 card = sdio_get_drvdata(func); 920 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 921 &card->work_flags)) 922 schedule_work(&card->work); 923 } 924 925 /* WLAN IDs */ 926 static const struct sdio_device_id mwifiex_ids[] = { 927 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786_WLAN), 928 .driver_data = (unsigned long) &mwifiex_sdio_sd8786}, 929 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_WLAN), 930 .driver_data = (unsigned long) &mwifiex_sdio_sd8787}, 931 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_WLAN), 932 .driver_data = (unsigned long) &mwifiex_sdio_sd8797}, 933 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_WLAN), 934 .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, 935 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_WLAN), 936 .driver_data = (unsigned long)&mwifiex_sdio_sd8887}, 937 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801_WLAN), 938 .driver_data = (unsigned long)&mwifiex_sdio_sd8801}, 939 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_WLAN), 940 .driver_data = (unsigned long)&mwifiex_sdio_sd8977}, 941 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8978_WLAN), 942 .driver_data = (unsigned long)&mwifiex_sdio_sd8978}, 943 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_WLAN), 944 .driver_data = (unsigned long)&mwifiex_sdio_sd8987}, 945 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_WLAN), 946 .driver_data = (unsigned long)&mwifiex_sdio_sd8997}, 947 {}, 948 }; 949 950 MODULE_DEVICE_TABLE(sdio, mwifiex_ids); 951 952 static const struct dev_pm_ops mwifiex_sdio_pm_ops = { 953 .suspend = mwifiex_sdio_suspend, 954 .resume = mwifiex_sdio_resume, 955 }; 956 957 static struct sdio_driver mwifiex_sdio = { 958 .name = "mwifiex_sdio", 959 .id_table = mwifiex_ids, 960 .probe = mwifiex_sdio_probe, 961 .remove = mwifiex_sdio_remove, 962 .drv = { 963 .owner = THIS_MODULE, 964 .coredump = mwifiex_sdio_coredump, 965 .pm = &mwifiex_sdio_pm_ops, 966 } 967 }; 968 969 /* 970 * This function wakes up the card. 971 * 972 * A host power up command is written to the card configuration 973 * register to wake up the card. 974 */ 975 static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) 976 { 977 mwifiex_dbg(adapter, EVENT, 978 "event: wakeup device...\n"); 979 980 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); 981 } 982 983 /* 984 * This function is called after the card has woken up. 985 * 986 * The card configuration register is reset. 987 */ 988 static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) 989 { 990 mwifiex_dbg(adapter, EVENT, 991 "cmd: wakeup device completed\n"); 992 993 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); 994 } 995 996 static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter *adapter, 997 struct mwifiex_fw_image *fw) 998 { 999 struct sdio_mmc_card *card = adapter->card; 1000 int ret; 1001 1002 sdio_claim_host(card->func); 1003 ret = mwifiex_dnld_fw(adapter, fw); 1004 sdio_release_host(card->func); 1005 1006 return ret; 1007 } 1008 1009 /* 1010 * This function is used to initialize IO ports for the 1011 * chipsets supporting SDIO new mode eg SD8897. 1012 */ 1013 static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) 1014 { 1015 u8 reg; 1016 struct sdio_mmc_card *card = adapter->card; 1017 1018 adapter->ioport = MEM_PORT; 1019 1020 /* enable sdio new mode */ 1021 if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®)) 1022 return -1; 1023 if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg, 1024 reg | CMD53_NEW_MODE)) 1025 return -1; 1026 1027 /* Configure cmd port and enable reading rx length from the register */ 1028 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®)) 1029 return -1; 1030 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0, 1031 reg | CMD_PORT_RD_LEN_EN)) 1032 return -1; 1033 1034 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is 1035 * completed 1036 */ 1037 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®)) 1038 return -1; 1039 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1, 1040 reg | CMD_PORT_AUTO_EN)) 1041 return -1; 1042 1043 return 0; 1044 } 1045 1046 /* This function initializes the IO ports. 1047 * 1048 * The following operations are performed - 1049 * - Read the IO ports (0, 1 and 2) 1050 * - Set host interrupt Reset-To-Read to clear 1051 * - Set auto re-enable interrupt 1052 */ 1053 static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) 1054 { 1055 u8 reg; 1056 struct sdio_mmc_card *card = adapter->card; 1057 1058 adapter->ioport = 0; 1059 1060 if (card->supports_sdio_new_mode) { 1061 if (mwifiex_init_sdio_new_mode(adapter)) 1062 return -1; 1063 goto cont; 1064 } 1065 1066 /* Read the IO port */ 1067 if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®)) 1068 adapter->ioport |= (reg & 0xff); 1069 else 1070 return -1; 1071 1072 if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®)) 1073 adapter->ioport |= ((reg & 0xff) << 8); 1074 else 1075 return -1; 1076 1077 if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®)) 1078 adapter->ioport |= ((reg & 0xff) << 16); 1079 else 1080 return -1; 1081 cont: 1082 mwifiex_dbg(adapter, INFO, 1083 "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); 1084 1085 /* Set Host interrupt reset to read to clear */ 1086 if (mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®)) 1087 return -1; 1088 if (mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg, 1089 reg | card->reg->sdio_int_mask)) 1090 return -1; 1091 1092 /* Dnld/Upld ready set to auto reset */ 1093 if (mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) 1094 return -1; 1095 if (mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, 1096 reg | AUTO_RE_ENABLE_INT)) 1097 return -1; 1098 1099 return 0; 1100 } 1101 1102 /* 1103 * This function sends data to the card. 1104 */ 1105 static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, 1106 u8 *payload, u32 pkt_len, u32 port) 1107 { 1108 u32 i = 0; 1109 int ret; 1110 1111 do { 1112 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); 1113 if (ret) { 1114 i++; 1115 mwifiex_dbg(adapter, ERROR, 1116 "host_to_card, write iomem\t" 1117 "(%d) failed: %d\n", i, ret); 1118 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) 1119 mwifiex_dbg(adapter, ERROR, 1120 "write CFG reg failed\n"); 1121 1122 ret = -1; 1123 if (i > MAX_WRITE_IOMEM_RETRY) 1124 return ret; 1125 } 1126 } while (ret == -1); 1127 1128 return ret; 1129 } 1130 1131 /* 1132 * This function gets the read port. 1133 * 1134 * If control port bit is set in MP read bitmap, the control port 1135 * is returned, otherwise the current read port is returned and 1136 * the value is increased (provided it does not reach the maximum 1137 * limit, in which case it is reset to 1) 1138 */ 1139 static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) 1140 { 1141 struct sdio_mmc_card *card = adapter->card; 1142 const struct mwifiex_sdio_card_reg *reg = card->reg; 1143 u32 rd_bitmap = card->mp_rd_bitmap; 1144 1145 mwifiex_dbg(adapter, DATA, 1146 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); 1147 1148 if (card->supports_sdio_new_mode) { 1149 if (!(rd_bitmap & reg->data_port_mask)) 1150 return -1; 1151 } else { 1152 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) 1153 return -1; 1154 } 1155 1156 if ((card->has_control_mask) && 1157 (card->mp_rd_bitmap & CTRL_PORT_MASK)) { 1158 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); 1159 *port = CTRL_PORT; 1160 mwifiex_dbg(adapter, DATA, 1161 "data: port=%d mp_rd_bitmap=0x%08x\n", 1162 *port, card->mp_rd_bitmap); 1163 return 0; 1164 } 1165 1166 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) 1167 return -1; 1168 1169 /* We are now handling the SDIO data ports */ 1170 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port)); 1171 *port = card->curr_rd_port; 1172 1173 if (++card->curr_rd_port == card->max_ports) 1174 card->curr_rd_port = reg->start_rd_port; 1175 1176 mwifiex_dbg(adapter, DATA, 1177 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n", 1178 *port, rd_bitmap, card->mp_rd_bitmap); 1179 1180 return 0; 1181 } 1182 1183 /* 1184 * This function gets the write port for data. 1185 * 1186 * The current write port is returned if available and the value is 1187 * increased (provided it does not reach the maximum limit, in which 1188 * case it is reset to 1) 1189 */ 1190 static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) 1191 { 1192 struct sdio_mmc_card *card = adapter->card; 1193 const struct mwifiex_sdio_card_reg *reg = card->reg; 1194 u32 wr_bitmap = card->mp_wr_bitmap; 1195 1196 mwifiex_dbg(adapter, DATA, 1197 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); 1198 1199 if (!(wr_bitmap & card->mp_data_port_mask)) { 1200 adapter->data_sent = true; 1201 return -EBUSY; 1202 } 1203 1204 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { 1205 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); 1206 *port = card->curr_wr_port; 1207 if (++card->curr_wr_port == card->mp_end_port) 1208 card->curr_wr_port = reg->start_wr_port; 1209 } else { 1210 adapter->data_sent = true; 1211 return -EBUSY; 1212 } 1213 1214 if ((card->has_control_mask) && (*port == CTRL_PORT)) { 1215 mwifiex_dbg(adapter, ERROR, 1216 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", 1217 *port, card->curr_wr_port, wr_bitmap, 1218 card->mp_wr_bitmap); 1219 return -1; 1220 } 1221 1222 mwifiex_dbg(adapter, DATA, 1223 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", 1224 *port, wr_bitmap, card->mp_wr_bitmap); 1225 1226 return 0; 1227 } 1228 1229 /* 1230 * This function polls the card status. 1231 */ 1232 static int 1233 mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) 1234 { 1235 struct sdio_mmc_card *card = adapter->card; 1236 u32 tries; 1237 u8 cs; 1238 1239 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 1240 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) 1241 break; 1242 else if ((cs & bits) == bits) 1243 return 0; 1244 1245 usleep_range(10, 20); 1246 } 1247 1248 mwifiex_dbg(adapter, ERROR, 1249 "poll card status failed, tries = %d\n", tries); 1250 1251 return -1; 1252 } 1253 1254 /* 1255 * This function disables the host interrupt. 1256 * 1257 * The host interrupt mask is read, the disable bit is reset and 1258 * written back to the card host interrupt mask register. 1259 */ 1260 static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) 1261 { 1262 struct sdio_mmc_card *card = adapter->card; 1263 struct sdio_func *func = card->func; 1264 1265 sdio_claim_host(func); 1266 mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0); 1267 sdio_release_irq(func); 1268 sdio_release_host(func); 1269 } 1270 1271 /* 1272 * This function reads the interrupt status from card. 1273 */ 1274 static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) 1275 { 1276 struct sdio_mmc_card *card = adapter->card; 1277 u8 sdio_ireg; 1278 unsigned long flags; 1279 1280 if (mwifiex_read_data_sync(adapter, card->mp_regs, 1281 card->reg->max_mp_regs, 1282 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) { 1283 mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n"); 1284 return; 1285 } 1286 1287 sdio_ireg = card->mp_regs[card->reg->host_int_status_reg]; 1288 if (sdio_ireg) { 1289 /* 1290 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS 1291 * For SDIO new mode CMD port interrupts 1292 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or 1293 * UP_LD_CMD_PORT_HOST_INT_STATUS 1294 * Clear the interrupt status register 1295 */ 1296 mwifiex_dbg(adapter, INTR, 1297 "int: sdio_ireg = %#x\n", sdio_ireg); 1298 spin_lock_irqsave(&adapter->int_lock, flags); 1299 adapter->int_status |= sdio_ireg; 1300 spin_unlock_irqrestore(&adapter->int_lock, flags); 1301 } 1302 } 1303 1304 /* 1305 * SDIO interrupt handler. 1306 * 1307 * This function reads the interrupt status from firmware and handles 1308 * the interrupt in current thread (ksdioirqd) right away. 1309 */ 1310 static void 1311 mwifiex_sdio_interrupt(struct sdio_func *func) 1312 { 1313 struct mwifiex_adapter *adapter; 1314 struct sdio_mmc_card *card; 1315 1316 card = sdio_get_drvdata(func); 1317 if (!card || !card->adapter) { 1318 pr_err("int: func=%p card=%p adapter=%p\n", 1319 func, card, card ? card->adapter : NULL); 1320 return; 1321 } 1322 adapter = card->adapter; 1323 1324 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) 1325 adapter->ps_state = PS_STATE_AWAKE; 1326 1327 mwifiex_interrupt_status(adapter); 1328 mwifiex_main_process(adapter); 1329 } 1330 1331 /* 1332 * This function enables the host interrupt. 1333 * 1334 * The host interrupt enable mask is written to the card 1335 * host interrupt mask register. 1336 */ 1337 static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) 1338 { 1339 struct sdio_mmc_card *card = adapter->card; 1340 struct sdio_func *func = card->func; 1341 int ret; 1342 1343 sdio_claim_host(func); 1344 1345 /* Request the SDIO IRQ */ 1346 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); 1347 if (ret) { 1348 mwifiex_dbg(adapter, ERROR, 1349 "claim irq failed: ret=%d\n", ret); 1350 goto out; 1351 } 1352 1353 /* Simply write the mask to the register */ 1354 ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 1355 card->reg->host_int_enable); 1356 if (ret) { 1357 mwifiex_dbg(adapter, ERROR, 1358 "enable host interrupt failed\n"); 1359 sdio_release_irq(func); 1360 } 1361 1362 out: 1363 sdio_release_host(func); 1364 return ret; 1365 } 1366 1367 /* 1368 * This function sends a data buffer to the card. 1369 */ 1370 static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, 1371 u32 *type, u8 *buffer, 1372 u32 npayload, u32 ioport) 1373 { 1374 int ret; 1375 u32 nb; 1376 1377 if (!buffer) { 1378 mwifiex_dbg(adapter, ERROR, 1379 "%s: buffer is NULL\n", __func__); 1380 return -1; 1381 } 1382 1383 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); 1384 1385 if (ret) { 1386 mwifiex_dbg(adapter, ERROR, 1387 "%s: read iomem failed: %d\n", __func__, 1388 ret); 1389 return -1; 1390 } 1391 1392 nb = get_unaligned_le16((buffer)); 1393 if (nb > npayload) { 1394 mwifiex_dbg(adapter, ERROR, 1395 "%s: invalid packet, nb=%d npayload=%d\n", 1396 __func__, nb, npayload); 1397 return -1; 1398 } 1399 1400 *type = get_unaligned_le16((buffer + 2)); 1401 1402 return ret; 1403 } 1404 1405 /* 1406 * This function downloads the firmware to the card. 1407 * 1408 * Firmware is downloaded to the card in blocks. Every block download 1409 * is tested for CRC errors, and retried a number of times before 1410 * returning failure. 1411 */ 1412 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, 1413 struct mwifiex_fw_image *fw) 1414 { 1415 struct sdio_mmc_card *card = adapter->card; 1416 const struct mwifiex_sdio_card_reg *reg = card->reg; 1417 int ret; 1418 u8 *firmware = fw->fw_buf; 1419 u32 firmware_len = fw->fw_len; 1420 u32 offset = 0; 1421 u8 base0, base1; 1422 u8 *fwbuf; 1423 u16 len = 0; 1424 u32 txlen, tx_blocks = 0, tries; 1425 u32 i = 0; 1426 1427 if (!firmware_len) { 1428 mwifiex_dbg(adapter, ERROR, 1429 "firmware image not found! Terminating download\n"); 1430 return -1; 1431 } 1432 1433 mwifiex_dbg(adapter, INFO, 1434 "info: downloading FW image (%d bytes)\n", 1435 firmware_len); 1436 1437 /* Assume that the allocated buffer is 8-byte aligned */ 1438 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); 1439 if (!fwbuf) 1440 return -ENOMEM; 1441 1442 sdio_claim_host(card->func); 1443 1444 /* Perform firmware data transfer */ 1445 do { 1446 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY 1447 bits */ 1448 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | 1449 DN_LD_CARD_RDY); 1450 if (ret) { 1451 mwifiex_dbg(adapter, ERROR, 1452 "FW download with helper:\t" 1453 "poll status timeout @ %d\n", offset); 1454 goto done; 1455 } 1456 1457 /* More data? */ 1458 if (offset >= firmware_len) 1459 break; 1460 1461 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 1462 ret = mwifiex_read_reg(adapter, reg->base_0_reg, 1463 &base0); 1464 if (ret) { 1465 mwifiex_dbg(adapter, ERROR, 1466 "dev BASE0 register read failed:\t" 1467 "base0=%#04X(%d). Terminating dnld\n", 1468 base0, base0); 1469 goto done; 1470 } 1471 ret = mwifiex_read_reg(adapter, reg->base_1_reg, 1472 &base1); 1473 if (ret) { 1474 mwifiex_dbg(adapter, ERROR, 1475 "dev BASE1 register read failed:\t" 1476 "base1=%#04X(%d). Terminating dnld\n", 1477 base1, base1); 1478 goto done; 1479 } 1480 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); 1481 1482 if (len) 1483 break; 1484 1485 usleep_range(10, 20); 1486 } 1487 1488 if (!len) { 1489 break; 1490 } else if (len > MWIFIEX_UPLD_SIZE) { 1491 mwifiex_dbg(adapter, ERROR, 1492 "FW dnld failed @ %d, invalid length %d\n", 1493 offset, len); 1494 ret = -1; 1495 goto done; 1496 } 1497 1498 txlen = len; 1499 1500 if (len & BIT(0)) { 1501 i++; 1502 if (i > MAX_WRITE_IOMEM_RETRY) { 1503 mwifiex_dbg(adapter, ERROR, 1504 "FW dnld failed @ %d, over max retry\n", 1505 offset); 1506 ret = -1; 1507 goto done; 1508 } 1509 mwifiex_dbg(adapter, ERROR, 1510 "CRC indicated by the helper:\t" 1511 "len = 0x%04X, txlen = %d\n", len, txlen); 1512 len &= ~BIT(0); 1513 /* Setting this to 0 to resend from same offset */ 1514 txlen = 0; 1515 } else { 1516 i = 0; 1517 1518 /* Set blocksize to transfer - checking for last 1519 block */ 1520 if (firmware_len - offset < txlen) 1521 txlen = firmware_len - offset; 1522 1523 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) 1524 / MWIFIEX_SDIO_BLOCK_SIZE; 1525 1526 /* Copy payload to buffer */ 1527 memmove(fwbuf, &firmware[offset], txlen); 1528 } 1529 1530 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * 1531 MWIFIEX_SDIO_BLOCK_SIZE, 1532 adapter->ioport); 1533 if (ret) { 1534 mwifiex_dbg(adapter, ERROR, 1535 "FW download, write iomem (%d) failed @ %d\n", 1536 i, offset); 1537 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) 1538 mwifiex_dbg(adapter, ERROR, 1539 "write CFG reg failed\n"); 1540 1541 ret = -1; 1542 goto done; 1543 } 1544 1545 offset += txlen; 1546 } while (true); 1547 1548 mwifiex_dbg(adapter, MSG, 1549 "info: FW download over, size %d bytes\n", offset); 1550 1551 ret = 0; 1552 done: 1553 sdio_release_host(card->func); 1554 kfree(fwbuf); 1555 return ret; 1556 } 1557 1558 /* 1559 * This function decodes sdio aggregation pkt. 1560 * 1561 * Based on the data block size and pkt_len, 1562 * skb data will be decoded to few packets. 1563 */ 1564 static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter, 1565 struct sk_buff *skb) 1566 { 1567 u32 total_pkt_len, pkt_len; 1568 struct sk_buff *skb_deaggr; 1569 u16 blk_size; 1570 u8 blk_num; 1571 u8 *data; 1572 1573 data = skb->data; 1574 total_pkt_len = skb->len; 1575 1576 while (total_pkt_len >= (SDIO_HEADER_OFFSET + adapter->intf_hdr_len)) { 1577 if (total_pkt_len < adapter->sdio_rx_block_size) 1578 break; 1579 blk_num = *(data + BLOCK_NUMBER_OFFSET); 1580 blk_size = adapter->sdio_rx_block_size * blk_num; 1581 if (blk_size > total_pkt_len) { 1582 mwifiex_dbg(adapter, ERROR, 1583 "%s: error in blk_size,\t" 1584 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n", 1585 __func__, blk_num, blk_size, total_pkt_len); 1586 break; 1587 } 1588 pkt_len = get_unaligned_le16((data + 1589 SDIO_HEADER_OFFSET)); 1590 if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) { 1591 mwifiex_dbg(adapter, ERROR, 1592 "%s: error in pkt_len,\t" 1593 "pkt_len=%d, blk_size=%d\n", 1594 __func__, pkt_len, blk_size); 1595 break; 1596 } 1597 1598 skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL); 1599 if (!skb_deaggr) 1600 break; 1601 skb_put(skb_deaggr, pkt_len); 1602 memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len); 1603 skb_pull(skb_deaggr, adapter->intf_hdr_len); 1604 1605 mwifiex_handle_rx_packet(adapter, skb_deaggr); 1606 data += blk_size; 1607 total_pkt_len -= blk_size; 1608 } 1609 } 1610 1611 /* 1612 * This function decodes a received packet. 1613 * 1614 * Based on the type, the packet is treated as either a data, or 1615 * a command response, or an event, and the correct handler 1616 * function is invoked. 1617 */ 1618 static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, 1619 struct sk_buff *skb, u32 upld_typ) 1620 { 1621 u8 *cmd_buf; 1622 u16 pkt_len; 1623 struct mwifiex_rxinfo *rx_info; 1624 1625 pkt_len = get_unaligned_le16(skb->data); 1626 1627 if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) { 1628 skb_trim(skb, pkt_len); 1629 skb_pull(skb, adapter->intf_hdr_len); 1630 } 1631 1632 switch (upld_typ) { 1633 case MWIFIEX_TYPE_AGGR_DATA: 1634 mwifiex_dbg(adapter, INFO, 1635 "info: --- Rx: Aggr Data packet ---\n"); 1636 rx_info = MWIFIEX_SKB_RXCB(skb); 1637 rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA; 1638 if (adapter->rx_work_enabled) { 1639 skb_queue_tail(&adapter->rx_data_q, skb); 1640 atomic_inc(&adapter->rx_pending); 1641 adapter->data_received = true; 1642 } else { 1643 mwifiex_deaggr_sdio_pkt(adapter, skb); 1644 dev_kfree_skb_any(skb); 1645 } 1646 break; 1647 1648 case MWIFIEX_TYPE_DATA: 1649 mwifiex_dbg(adapter, DATA, 1650 "info: --- Rx: Data packet ---\n"); 1651 if (adapter->rx_work_enabled) { 1652 skb_queue_tail(&adapter->rx_data_q, skb); 1653 adapter->data_received = true; 1654 atomic_inc(&adapter->rx_pending); 1655 } else { 1656 mwifiex_handle_rx_packet(adapter, skb); 1657 } 1658 break; 1659 1660 case MWIFIEX_TYPE_CMD: 1661 mwifiex_dbg(adapter, CMD, 1662 "info: --- Rx: Cmd Response ---\n"); 1663 /* take care of curr_cmd = NULL case */ 1664 if (!adapter->curr_cmd) { 1665 cmd_buf = adapter->upld_buf; 1666 1667 if (adapter->ps_state == PS_STATE_SLEEP_CFM) 1668 mwifiex_process_sleep_confirm_resp(adapter, 1669 skb->data, 1670 skb->len); 1671 1672 memcpy(cmd_buf, skb->data, 1673 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, 1674 skb->len)); 1675 1676 dev_kfree_skb_any(skb); 1677 } else { 1678 adapter->cmd_resp_received = true; 1679 adapter->curr_cmd->resp_skb = skb; 1680 } 1681 break; 1682 1683 case MWIFIEX_TYPE_EVENT: 1684 mwifiex_dbg(adapter, EVENT, 1685 "info: --- Rx: Event ---\n"); 1686 adapter->event_cause = get_unaligned_le32(skb->data); 1687 1688 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) 1689 memcpy(adapter->event_body, 1690 skb->data + MWIFIEX_EVENT_HEADER_LEN, 1691 skb->len); 1692 1693 /* event cause has been saved to adapter->event_cause */ 1694 adapter->event_received = true; 1695 adapter->event_skb = skb; 1696 1697 break; 1698 1699 default: 1700 mwifiex_dbg(adapter, ERROR, 1701 "unknown upload type %#x\n", upld_typ); 1702 dev_kfree_skb_any(skb); 1703 break; 1704 } 1705 1706 return 0; 1707 } 1708 1709 /* 1710 * This function transfers received packets from card to driver, performing 1711 * aggregation if required. 1712 * 1713 * For data received on control port, or if aggregation is disabled, the 1714 * received buffers are uploaded as separate packets. However, if aggregation 1715 * is enabled and required, the buffers are copied onto an aggregation buffer, 1716 * provided there is space left, processed and finally uploaded. 1717 */ 1718 static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, 1719 u16 rx_len, u8 port) 1720 { 1721 struct sdio_mmc_card *card = adapter->card; 1722 s32 f_do_rx_aggr = 0; 1723 s32 f_do_rx_cur = 0; 1724 s32 f_aggr_cur = 0; 1725 s32 f_post_aggr_cur = 0; 1726 struct sk_buff *skb_deaggr; 1727 struct sk_buff *skb = NULL; 1728 u32 pkt_len, pkt_type, mport, pind; 1729 u8 *curr_ptr; 1730 1731 if ((card->has_control_mask) && (port == CTRL_PORT)) { 1732 /* Read the command Resp without aggr */ 1733 mwifiex_dbg(adapter, CMD, 1734 "info: %s: no aggregation for cmd\t" 1735 "response\n", __func__); 1736 1737 f_do_rx_cur = 1; 1738 goto rx_curr_single; 1739 } 1740 1741 if (!card->mpa_rx.enabled) { 1742 mwifiex_dbg(adapter, WARN, 1743 "info: %s: rx aggregation disabled\n", 1744 __func__); 1745 1746 f_do_rx_cur = 1; 1747 goto rx_curr_single; 1748 } 1749 1750 if ((!card->has_control_mask && (card->mp_rd_bitmap & 1751 card->reg->data_port_mask)) || 1752 (card->has_control_mask && (card->mp_rd_bitmap & 1753 (~((u32) CTRL_PORT_MASK))))) { 1754 /* Some more data RX pending */ 1755 mwifiex_dbg(adapter, INFO, 1756 "info: %s: not last packet\n", __func__); 1757 1758 if (MP_RX_AGGR_IN_PROGRESS(card)) { 1759 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) { 1760 f_aggr_cur = 1; 1761 } else { 1762 /* No room in Aggr buf, do rx aggr now */ 1763 f_do_rx_aggr = 1; 1764 f_post_aggr_cur = 1; 1765 } 1766 } else { 1767 /* Rx aggr not in progress */ 1768 f_aggr_cur = 1; 1769 } 1770 1771 } else { 1772 /* No more data RX pending */ 1773 mwifiex_dbg(adapter, INFO, 1774 "info: %s: last packet\n", __func__); 1775 1776 if (MP_RX_AGGR_IN_PROGRESS(card)) { 1777 f_do_rx_aggr = 1; 1778 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) 1779 f_aggr_cur = 1; 1780 else 1781 /* No room in Aggr buf, do rx aggr now */ 1782 f_do_rx_cur = 1; 1783 } else { 1784 f_do_rx_cur = 1; 1785 } 1786 } 1787 1788 if (f_aggr_cur) { 1789 mwifiex_dbg(adapter, INFO, 1790 "info: current packet aggregation\n"); 1791 /* Curr pkt can be aggregated */ 1792 mp_rx_aggr_setup(card, rx_len, port); 1793 1794 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || 1795 mp_rx_aggr_port_limit_reached(card)) { 1796 mwifiex_dbg(adapter, INFO, 1797 "info: %s: aggregated packet\t" 1798 "limit reached\n", __func__); 1799 /* No more pkts allowed in Aggr buf, rx it */ 1800 f_do_rx_aggr = 1; 1801 } 1802 } 1803 1804 if (f_do_rx_aggr) { 1805 /* do aggr RX now */ 1806 mwifiex_dbg(adapter, DATA, 1807 "info: do_rx_aggr: num of packets: %d\n", 1808 card->mpa_rx.pkt_cnt); 1809 1810 if (card->supports_sdio_new_mode) { 1811 int i; 1812 u32 port_count; 1813 1814 for (i = 0, port_count = 0; i < card->max_ports; i++) 1815 if (card->mpa_rx.ports & BIT(i)) 1816 port_count++; 1817 1818 /* Reading data from "start_port + 0" to "start_port + 1819 * port_count -1", so decrease the count by 1 1820 */ 1821 port_count--; 1822 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 1823 (port_count << 8)) + card->mpa_rx.start_port; 1824 } else { 1825 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 1826 (card->mpa_rx.ports << 4)) + 1827 card->mpa_rx.start_port; 1828 } 1829 1830 if (card->mpa_rx.pkt_cnt == 1) 1831 mport = adapter->ioport + card->mpa_rx.start_port; 1832 1833 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, 1834 card->mpa_rx.buf_len, mport, 1)) 1835 goto error; 1836 1837 curr_ptr = card->mpa_rx.buf; 1838 1839 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { 1840 u32 *len_arr = card->mpa_rx.len_arr; 1841 1842 /* get curr PKT len & type */ 1843 pkt_len = get_unaligned_le16(&curr_ptr[0]); 1844 pkt_type = get_unaligned_le16(&curr_ptr[2]); 1845 1846 /* copy pkt to deaggr buf */ 1847 skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind], 1848 GFP_KERNEL); 1849 if (!skb_deaggr) { 1850 mwifiex_dbg(adapter, ERROR, "skb allocation failure\t" 1851 "drop pkt len=%d type=%d\n", 1852 pkt_len, pkt_type); 1853 curr_ptr += len_arr[pind]; 1854 continue; 1855 } 1856 1857 skb_put(skb_deaggr, len_arr[pind]); 1858 1859 if ((pkt_type == MWIFIEX_TYPE_DATA || 1860 (pkt_type == MWIFIEX_TYPE_AGGR_DATA && 1861 adapter->sdio_rx_aggr_enable)) && 1862 (pkt_len <= len_arr[pind])) { 1863 1864 memcpy(skb_deaggr->data, curr_ptr, pkt_len); 1865 1866 skb_trim(skb_deaggr, pkt_len); 1867 1868 /* Process de-aggr packet */ 1869 mwifiex_decode_rx_packet(adapter, skb_deaggr, 1870 pkt_type); 1871 } else { 1872 mwifiex_dbg(adapter, ERROR, 1873 "drop wrong aggr pkt:\t" 1874 "sdio_single_port_rx_aggr=%d\t" 1875 "type=%d len=%d max_len=%d\n", 1876 adapter->sdio_rx_aggr_enable, 1877 pkt_type, pkt_len, len_arr[pind]); 1878 dev_kfree_skb_any(skb_deaggr); 1879 } 1880 curr_ptr += len_arr[pind]; 1881 } 1882 MP_RX_AGGR_BUF_RESET(card); 1883 } 1884 1885 rx_curr_single: 1886 if (f_do_rx_cur) { 1887 mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n", 1888 port, rx_len); 1889 1890 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL); 1891 if (!skb) { 1892 mwifiex_dbg(adapter, ERROR, 1893 "single skb allocated fail,\t" 1894 "drop pkt port=%d len=%d\n", port, rx_len); 1895 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, 1896 card->mpa_rx.buf, rx_len, 1897 adapter->ioport + port)) 1898 goto error; 1899 return 0; 1900 } 1901 1902 skb_put(skb, rx_len); 1903 1904 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, 1905 skb->data, skb->len, 1906 adapter->ioport + port)) 1907 goto error; 1908 if (!adapter->sdio_rx_aggr_enable && 1909 pkt_type == MWIFIEX_TYPE_AGGR_DATA) { 1910 mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t" 1911 "current SDIO RX Aggr not enabled\n", 1912 pkt_type); 1913 dev_kfree_skb_any(skb); 1914 return 0; 1915 } 1916 1917 mwifiex_decode_rx_packet(adapter, skb, pkt_type); 1918 } 1919 if (f_post_aggr_cur) { 1920 mwifiex_dbg(adapter, INFO, 1921 "info: current packet aggregation\n"); 1922 /* Curr pkt can be aggregated */ 1923 mp_rx_aggr_setup(card, rx_len, port); 1924 } 1925 1926 return 0; 1927 error: 1928 if (MP_RX_AGGR_IN_PROGRESS(card)) 1929 MP_RX_AGGR_BUF_RESET(card); 1930 1931 if (f_do_rx_cur && skb) 1932 /* Single transfer pending. Free curr buff also */ 1933 dev_kfree_skb_any(skb); 1934 1935 return -1; 1936 } 1937 1938 /* 1939 * This function checks the current interrupt status. 1940 * 1941 * The following interrupts are checked and handled by this function - 1942 * - Data sent 1943 * - Command sent 1944 * - Packets received 1945 * 1946 * Since the firmware does not generate download ready interrupt if the 1947 * port updated is command port only, command sent interrupt checking 1948 * should be done manually, and for every SDIO interrupt. 1949 * 1950 * In case of Rx packets received, the packets are uploaded from card to 1951 * host and processed accordingly. 1952 */ 1953 static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) 1954 { 1955 struct sdio_mmc_card *card = adapter->card; 1956 const struct mwifiex_sdio_card_reg *reg = card->reg; 1957 int ret = 0; 1958 u8 sdio_ireg; 1959 struct sk_buff *skb; 1960 u8 port = CTRL_PORT; 1961 u32 len_reg_l, len_reg_u; 1962 u32 rx_blocks; 1963 u16 rx_len; 1964 unsigned long flags; 1965 u32 bitmap; 1966 u8 cr; 1967 1968 spin_lock_irqsave(&adapter->int_lock, flags); 1969 sdio_ireg = adapter->int_status; 1970 adapter->int_status = 0; 1971 spin_unlock_irqrestore(&adapter->int_lock, flags); 1972 1973 if (!sdio_ireg) 1974 return ret; 1975 1976 /* Following interrupt is only for SDIO new mode */ 1977 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent) 1978 adapter->cmd_sent = false; 1979 1980 /* Following interrupt is only for SDIO new mode */ 1981 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { 1982 u32 pkt_type; 1983 1984 /* read the len of control packet */ 1985 rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8; 1986 rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0]; 1987 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE); 1988 if (rx_len <= adapter->intf_hdr_len || 1989 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > 1990 MWIFIEX_RX_DATA_BUF_SIZE) 1991 return -1; 1992 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); 1993 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len); 1994 1995 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL); 1996 if (!skb) 1997 return -1; 1998 1999 skb_put(skb, rx_len); 2000 2001 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, 2002 skb->len, adapter->ioport | 2003 CMD_PORT_SLCT)) { 2004 mwifiex_dbg(adapter, ERROR, 2005 "%s: failed to card_to_host", __func__); 2006 dev_kfree_skb_any(skb); 2007 goto term_cmd; 2008 } 2009 2010 if ((pkt_type != MWIFIEX_TYPE_CMD) && 2011 (pkt_type != MWIFIEX_TYPE_EVENT)) 2012 mwifiex_dbg(adapter, ERROR, 2013 "%s:Received wrong packet on cmd port", 2014 __func__); 2015 2016 mwifiex_decode_rx_packet(adapter, skb, pkt_type); 2017 } 2018 2019 if (sdio_ireg & DN_LD_HOST_INT_STATUS) { 2020 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l]; 2021 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8; 2022 if (card->supports_sdio_new_mode) { 2023 bitmap |= 2024 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; 2025 bitmap |= 2026 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; 2027 } 2028 card->mp_wr_bitmap = bitmap; 2029 2030 mwifiex_dbg(adapter, INTR, 2031 "int: DNLD: wr_bitmap=0x%x\n", 2032 card->mp_wr_bitmap); 2033 if (adapter->data_sent && 2034 (card->mp_wr_bitmap & card->mp_data_port_mask)) { 2035 mwifiex_dbg(adapter, INTR, 2036 "info: <--- Tx DONE Interrupt --->\n"); 2037 adapter->data_sent = false; 2038 } 2039 } 2040 2041 /* As firmware will not generate download ready interrupt if the port 2042 updated is command port only, cmd_sent should be done for any SDIO 2043 interrupt. */ 2044 if (card->has_control_mask && adapter->cmd_sent) { 2045 /* Check if firmware has attach buffer at command port and 2046 update just that in wr_bit_map. */ 2047 card->mp_wr_bitmap |= 2048 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; 2049 if (card->mp_wr_bitmap & CTRL_PORT_MASK) 2050 adapter->cmd_sent = false; 2051 } 2052 2053 mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n", 2054 adapter->cmd_sent, adapter->data_sent); 2055 if (sdio_ireg & UP_LD_HOST_INT_STATUS) { 2056 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l]; 2057 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8; 2058 if (card->supports_sdio_new_mode) { 2059 bitmap |= 2060 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; 2061 bitmap |= 2062 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; 2063 } 2064 card->mp_rd_bitmap = bitmap; 2065 mwifiex_dbg(adapter, INTR, 2066 "int: UPLD: rd_bitmap=0x%x\n", 2067 card->mp_rd_bitmap); 2068 2069 while (true) { 2070 ret = mwifiex_get_rd_port(adapter, &port); 2071 if (ret) { 2072 mwifiex_dbg(adapter, INFO, 2073 "info: no more rd_port available\n"); 2074 break; 2075 } 2076 len_reg_l = reg->rd_len_p0_l + (port << 1); 2077 len_reg_u = reg->rd_len_p0_u + (port << 1); 2078 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8; 2079 rx_len |= (u16) card->mp_regs[len_reg_l]; 2080 mwifiex_dbg(adapter, INFO, 2081 "info: RX: port=%d rx_len=%u\n", 2082 port, rx_len); 2083 rx_blocks = 2084 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - 2085 1) / MWIFIEX_SDIO_BLOCK_SIZE; 2086 if (rx_len <= adapter->intf_hdr_len || 2087 (card->mpa_rx.enabled && 2088 ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > 2089 card->mpa_rx.buf_size))) { 2090 mwifiex_dbg(adapter, ERROR, 2091 "invalid rx_len=%d\n", 2092 rx_len); 2093 return -1; 2094 } 2095 2096 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); 2097 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", 2098 rx_len); 2099 2100 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len, 2101 port)) { 2102 mwifiex_dbg(adapter, ERROR, 2103 "card_to_host_mpa failed: int status=%#x\n", 2104 sdio_ireg); 2105 goto term_cmd; 2106 } 2107 } 2108 } 2109 2110 return 0; 2111 2112 term_cmd: 2113 /* terminate cmd */ 2114 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) 2115 mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n"); 2116 else 2117 mwifiex_dbg(adapter, INFO, 2118 "info: CFG reg val = %d\n", cr); 2119 2120 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) 2121 mwifiex_dbg(adapter, ERROR, 2122 "write CFG reg failed\n"); 2123 else 2124 mwifiex_dbg(adapter, INFO, "info: write success\n"); 2125 2126 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) 2127 mwifiex_dbg(adapter, ERROR, 2128 "read CFG reg failed\n"); 2129 else 2130 mwifiex_dbg(adapter, INFO, 2131 "info: CFG reg val =%x\n", cr); 2132 2133 return -1; 2134 } 2135 2136 /* 2137 * This function aggregates transmission buffers in driver and downloads 2138 * the aggregated packet to card. 2139 * 2140 * The individual packets are aggregated by copying into an aggregation 2141 * buffer and then downloaded to the card. Previous unsent packets in the 2142 * aggregation buffer are pre-copied first before new packets are added. 2143 * Aggregation is done till there is space left in the aggregation buffer, 2144 * or till new packets are available. 2145 * 2146 * The function will only download the packet to the card when aggregation 2147 * stops, otherwise it will just aggregate the packet in aggregation buffer 2148 * and return. 2149 */ 2150 static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, 2151 u8 *payload, u32 pkt_len, u32 port, 2152 u32 next_pkt_len) 2153 { 2154 struct sdio_mmc_card *card = adapter->card; 2155 int ret = 0; 2156 s32 f_send_aggr_buf = 0; 2157 s32 f_send_cur_buf = 0; 2158 s32 f_precopy_cur_buf = 0; 2159 s32 f_postcopy_cur_buf = 0; 2160 u32 mport; 2161 int index; 2162 2163 if (!card->mpa_tx.enabled || 2164 (card->has_control_mask && (port == CTRL_PORT)) || 2165 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { 2166 mwifiex_dbg(adapter, WARN, 2167 "info: %s: tx aggregation disabled\n", 2168 __func__); 2169 2170 f_send_cur_buf = 1; 2171 goto tx_curr_single; 2172 } 2173 2174 if (next_pkt_len) { 2175 /* More pkt in TX queue */ 2176 mwifiex_dbg(adapter, INFO, 2177 "info: %s: more packets in queue.\n", 2178 __func__); 2179 2180 if (MP_TX_AGGR_IN_PROGRESS(card)) { 2181 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { 2182 f_precopy_cur_buf = 1; 2183 2184 if (!(card->mp_wr_bitmap & 2185 (1 << card->curr_wr_port)) || 2186 !MP_TX_AGGR_BUF_HAS_ROOM( 2187 card, pkt_len + next_pkt_len)) 2188 f_send_aggr_buf = 1; 2189 } else { 2190 /* No room in Aggr buf, send it */ 2191 f_send_aggr_buf = 1; 2192 2193 if (!(card->mp_wr_bitmap & 2194 (1 << card->curr_wr_port))) 2195 f_send_cur_buf = 1; 2196 else 2197 f_postcopy_cur_buf = 1; 2198 } 2199 } else { 2200 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && 2201 (card->mp_wr_bitmap & (1 << card->curr_wr_port))) 2202 f_precopy_cur_buf = 1; 2203 else 2204 f_send_cur_buf = 1; 2205 } 2206 } else { 2207 /* Last pkt in TX queue */ 2208 mwifiex_dbg(adapter, INFO, 2209 "info: %s: Last packet in Tx Queue.\n", 2210 __func__); 2211 2212 if (MP_TX_AGGR_IN_PROGRESS(card)) { 2213 /* some packs in Aggr buf already */ 2214 f_send_aggr_buf = 1; 2215 2216 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) 2217 f_precopy_cur_buf = 1; 2218 else 2219 /* No room in Aggr buf, send it */ 2220 f_send_cur_buf = 1; 2221 } else { 2222 f_send_cur_buf = 1; 2223 } 2224 } 2225 2226 if (f_precopy_cur_buf) { 2227 mwifiex_dbg(adapter, DATA, 2228 "data: %s: precopy current buffer\n", 2229 __func__); 2230 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); 2231 2232 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || 2233 mp_tx_aggr_port_limit_reached(card)) 2234 /* No more pkts allowed in Aggr buf, send it */ 2235 f_send_aggr_buf = 1; 2236 } 2237 2238 if (f_send_aggr_buf) { 2239 mwifiex_dbg(adapter, DATA, 2240 "data: %s: send aggr buffer: %d %d\n", 2241 __func__, card->mpa_tx.start_port, 2242 card->mpa_tx.ports); 2243 if (card->supports_sdio_new_mode) { 2244 u32 port_count; 2245 int i; 2246 2247 for (i = 0, port_count = 0; i < card->max_ports; i++) 2248 if (card->mpa_tx.ports & BIT(i)) 2249 port_count++; 2250 2251 /* Writing data from "start_port + 0" to "start_port + 2252 * port_count -1", so decrease the count by 1 2253 */ 2254 port_count--; 2255 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 2256 (port_count << 8)) + card->mpa_tx.start_port; 2257 } else { 2258 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 2259 (card->mpa_tx.ports << 4)) + 2260 card->mpa_tx.start_port; 2261 } 2262 2263 if (card->mpa_tx.pkt_cnt == 1) 2264 mport = adapter->ioport + card->mpa_tx.start_port; 2265 2266 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, 2267 card->mpa_tx.buf_len, mport); 2268 2269 /* Save the last multi port tx aggregation info to debug log. */ 2270 index = adapter->dbg.last_sdio_mp_index; 2271 index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM; 2272 adapter->dbg.last_sdio_mp_index = index; 2273 adapter->dbg.last_mp_wr_ports[index] = mport; 2274 adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap; 2275 adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len; 2276 adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port; 2277 2278 MP_TX_AGGR_BUF_RESET(card); 2279 } 2280 2281 tx_curr_single: 2282 if (f_send_cur_buf) { 2283 mwifiex_dbg(adapter, DATA, 2284 "data: %s: send current buffer %d\n", 2285 __func__, port); 2286 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, 2287 adapter->ioport + port); 2288 } 2289 2290 if (f_postcopy_cur_buf) { 2291 mwifiex_dbg(adapter, DATA, 2292 "data: %s: postcopy current buffer\n", 2293 __func__); 2294 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); 2295 } 2296 2297 return ret; 2298 } 2299 2300 /* 2301 * This function downloads data from driver to card. 2302 * 2303 * Both commands and data packets are transferred to the card by this 2304 * function. 2305 * 2306 * This function adds the SDIO specific header to the front of the buffer 2307 * before transferring. The header contains the length of the packet and 2308 * the type. The firmware handles the packets based upon this set type. 2309 */ 2310 static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, 2311 u8 type, struct sk_buff *skb, 2312 struct mwifiex_tx_param *tx_param) 2313 { 2314 struct sdio_mmc_card *card = adapter->card; 2315 int ret; 2316 u32 buf_block_len; 2317 u32 blk_size; 2318 u32 port = CTRL_PORT; 2319 u8 *payload = (u8 *)skb->data; 2320 u32 pkt_len = skb->len; 2321 2322 /* Allocate buffer and copy payload */ 2323 blk_size = MWIFIEX_SDIO_BLOCK_SIZE; 2324 buf_block_len = (pkt_len + blk_size - 1) / blk_size; 2325 put_unaligned_le16((u16)pkt_len, payload + 0); 2326 put_unaligned_le16((u32)type, payload + 2); 2327 2328 2329 /* 2330 * This is SDIO specific header 2331 * u16 length, 2332 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, 2333 * MWIFIEX_TYPE_EVENT = 3) 2334 */ 2335 if (type == MWIFIEX_TYPE_DATA) { 2336 ret = mwifiex_get_wr_port_data(adapter, &port); 2337 if (ret) { 2338 mwifiex_dbg(adapter, ERROR, 2339 "%s: no wr_port available\n", 2340 __func__); 2341 return ret; 2342 } 2343 } else { 2344 adapter->cmd_sent = true; 2345 /* Type must be MWIFIEX_TYPE_CMD */ 2346 2347 if (pkt_len <= adapter->intf_hdr_len || 2348 pkt_len > MWIFIEX_UPLD_SIZE) 2349 mwifiex_dbg(adapter, ERROR, 2350 "%s: payload=%p, nb=%d\n", 2351 __func__, payload, pkt_len); 2352 2353 if (card->supports_sdio_new_mode) 2354 port = CMD_PORT_SLCT; 2355 } 2356 2357 /* Transfer data to card */ 2358 pkt_len = buf_block_len * blk_size; 2359 2360 if (tx_param) 2361 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, 2362 port, tx_param->next_pkt_len 2363 ); 2364 else 2365 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, 2366 port, 0); 2367 2368 if (ret) { 2369 if (type == MWIFIEX_TYPE_CMD) 2370 adapter->cmd_sent = false; 2371 if (type == MWIFIEX_TYPE_DATA) { 2372 adapter->data_sent = false; 2373 /* restore curr_wr_port in error cases */ 2374 card->curr_wr_port = port; 2375 card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port); 2376 } 2377 } else { 2378 if (type == MWIFIEX_TYPE_DATA) { 2379 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) 2380 adapter->data_sent = true; 2381 else 2382 adapter->data_sent = false; 2383 } 2384 } 2385 2386 return ret; 2387 } 2388 2389 /* 2390 * This function allocates the MPA Tx and Rx buffers. 2391 */ 2392 static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, 2393 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) 2394 { 2395 struct sdio_mmc_card *card = adapter->card; 2396 u32 rx_buf_size; 2397 int ret = 0; 2398 2399 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); 2400 if (!card->mpa_tx.buf) { 2401 ret = -1; 2402 goto error; 2403 } 2404 2405 card->mpa_tx.buf_size = mpa_tx_buf_size; 2406 2407 rx_buf_size = max_t(u32, mpa_rx_buf_size, 2408 (u32)SDIO_MAX_AGGR_BUF_SIZE); 2409 card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL); 2410 if (!card->mpa_rx.buf) { 2411 ret = -1; 2412 goto error; 2413 } 2414 2415 card->mpa_rx.buf_size = rx_buf_size; 2416 2417 error: 2418 if (ret) { 2419 kfree(card->mpa_tx.buf); 2420 kfree(card->mpa_rx.buf); 2421 card->mpa_tx.buf_size = 0; 2422 card->mpa_rx.buf_size = 0; 2423 card->mpa_tx.buf = NULL; 2424 card->mpa_rx.buf = NULL; 2425 } 2426 2427 return ret; 2428 } 2429 2430 /* 2431 * This function unregisters the SDIO device. 2432 * 2433 * The SDIO IRQ is released, the function is disabled and driver 2434 * data is set to null. 2435 */ 2436 static void 2437 mwifiex_unregister_dev(struct mwifiex_adapter *adapter) 2438 { 2439 struct sdio_mmc_card *card = adapter->card; 2440 2441 if (adapter->card) { 2442 card->adapter = NULL; 2443 sdio_claim_host(card->func); 2444 sdio_disable_func(card->func); 2445 sdio_release_host(card->func); 2446 } 2447 } 2448 2449 /* 2450 * This function registers the SDIO device. 2451 * 2452 * SDIO IRQ is claimed, block size is set and driver data is initialized. 2453 */ 2454 static int mwifiex_register_dev(struct mwifiex_adapter *adapter) 2455 { 2456 int ret; 2457 struct sdio_mmc_card *card = adapter->card; 2458 struct sdio_func *func = card->func; 2459 const char *firmware = card->firmware; 2460 2461 /* save adapter pointer in card */ 2462 card->adapter = adapter; 2463 adapter->tx_buf_size = card->tx_buf_size; 2464 2465 sdio_claim_host(func); 2466 2467 /* Set block size */ 2468 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); 2469 sdio_release_host(func); 2470 if (ret) { 2471 mwifiex_dbg(adapter, ERROR, 2472 "cannot set SDIO block size\n"); 2473 return ret; 2474 } 2475 2476 /* Select correct firmware (sdsd or sdiouart) firmware based on the strapping 2477 * option 2478 */ 2479 if (card->firmware_sdiouart) { 2480 u8 val; 2481 2482 mwifiex_read_reg(adapter, card->reg->host_strap_reg, &val); 2483 if ((val & card->reg->host_strap_mask) == card->reg->host_strap_value) 2484 firmware = card->firmware_sdiouart; 2485 } 2486 strcpy(adapter->fw_name, firmware); 2487 2488 if (card->fw_dump_enh) { 2489 adapter->mem_type_mapping_tbl = generic_mem_type_map; 2490 adapter->num_mem_types = 1; 2491 } else { 2492 adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; 2493 adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); 2494 } 2495 2496 return 0; 2497 } 2498 2499 /* 2500 * This function initializes the SDIO driver. 2501 * 2502 * The following initializations steps are followed - 2503 * - Read the Host interrupt status register to acknowledge 2504 * the first interrupt got from bootloader 2505 * - Disable host interrupt mask register 2506 * - Get SDIO port 2507 * - Initialize SDIO variables in card 2508 * - Allocate MP registers 2509 * - Allocate MPA Tx and Rx buffers 2510 */ 2511 static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) 2512 { 2513 struct sdio_mmc_card *card = adapter->card; 2514 const struct mwifiex_sdio_card_reg *reg = card->reg; 2515 int ret; 2516 u8 sdio_ireg; 2517 2518 sdio_set_drvdata(card->func, card); 2519 2520 /* 2521 * Read the host_int_status_reg for ACK the first interrupt got 2522 * from the bootloader. If we don't do this we get a interrupt 2523 * as soon as we register the irq. 2524 */ 2525 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); 2526 2527 /* Get SDIO ioport */ 2528 if (mwifiex_init_sdio_ioport(adapter)) 2529 return -EIO; 2530 2531 /* Initialize SDIO variables in card */ 2532 card->mp_rd_bitmap = 0; 2533 card->mp_wr_bitmap = 0; 2534 card->curr_rd_port = reg->start_rd_port; 2535 card->curr_wr_port = reg->start_wr_port; 2536 2537 card->mp_data_port_mask = reg->data_port_mask; 2538 2539 card->mpa_tx.buf_len = 0; 2540 card->mpa_tx.pkt_cnt = 0; 2541 card->mpa_tx.start_port = 0; 2542 2543 card->mpa_tx.enabled = 1; 2544 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; 2545 2546 card->mpa_rx.buf_len = 0; 2547 card->mpa_rx.pkt_cnt = 0; 2548 card->mpa_rx.start_port = 0; 2549 2550 card->mpa_rx.enabled = 1; 2551 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; 2552 2553 /* Allocate buffers for SDIO MP-A */ 2554 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); 2555 if (!card->mp_regs) 2556 return -ENOMEM; 2557 2558 /* Allocate skb pointer buffers */ 2559 card->mpa_rx.skb_arr = kcalloc(card->mp_agg_pkt_limit, sizeof(void *), 2560 GFP_KERNEL); 2561 if (!card->mpa_rx.skb_arr) { 2562 kfree(card->mp_regs); 2563 return -ENOMEM; 2564 } 2565 2566 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit, 2567 sizeof(*card->mpa_rx.len_arr), 2568 GFP_KERNEL); 2569 if (!card->mpa_rx.len_arr) { 2570 kfree(card->mp_regs); 2571 kfree(card->mpa_rx.skb_arr); 2572 return -ENOMEM; 2573 } 2574 2575 ret = mwifiex_alloc_sdio_mpa_buffers(adapter, 2576 card->mp_tx_agg_buf_size, 2577 card->mp_rx_agg_buf_size); 2578 2579 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */ 2580 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX || 2581 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) { 2582 /* Disable rx single port aggregation */ 2583 adapter->host_disable_sdio_rx_aggr = true; 2584 2585 ret = mwifiex_alloc_sdio_mpa_buffers 2586 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K, 2587 MWIFIEX_MP_AGGR_BUF_SIZE_32K); 2588 if (ret) { 2589 /* Disable multi port aggregation */ 2590 card->mpa_tx.enabled = 0; 2591 card->mpa_rx.enabled = 0; 2592 } 2593 } 2594 2595 adapter->auto_tdls = card->can_auto_tdls; 2596 adapter->ext_scan = card->can_ext_scan; 2597 return 0; 2598 } 2599 2600 /* 2601 * This function resets the MPA Tx and Rx buffers. 2602 */ 2603 static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) 2604 { 2605 struct sdio_mmc_card *card = adapter->card; 2606 2607 MP_TX_AGGR_BUF_RESET(card); 2608 MP_RX_AGGR_BUF_RESET(card); 2609 } 2610 2611 /* 2612 * This function cleans up the allocated card buffers. 2613 * 2614 * The following are freed by this function - 2615 * - MP registers 2616 * - MPA Tx buffer 2617 * - MPA Rx buffer 2618 */ 2619 static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) 2620 { 2621 struct sdio_mmc_card *card = adapter->card; 2622 2623 cancel_work_sync(&card->work); 2624 2625 kfree(card->mp_regs); 2626 kfree(card->mpa_rx.skb_arr); 2627 kfree(card->mpa_rx.len_arr); 2628 kfree(card->mpa_tx.buf); 2629 kfree(card->mpa_rx.buf); 2630 } 2631 2632 /* 2633 * This function updates the MP end port in card. 2634 */ 2635 static void 2636 mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) 2637 { 2638 struct sdio_mmc_card *card = adapter->card; 2639 const struct mwifiex_sdio_card_reg *reg = card->reg; 2640 int i; 2641 2642 card->mp_end_port = port; 2643 2644 card->mp_data_port_mask = reg->data_port_mask; 2645 2646 if (reg->start_wr_port) { 2647 for (i = 1; i <= card->max_ports - card->mp_end_port; i++) 2648 card->mp_data_port_mask &= 2649 ~(1 << (card->max_ports - i)); 2650 } 2651 2652 card->curr_wr_port = reg->start_wr_port; 2653 2654 mwifiex_dbg(adapter, CMD, 2655 "cmd: mp_end_port %d, data port mask 0x%x\n", 2656 port, card->mp_data_port_mask); 2657 } 2658 2659 static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) 2660 { 2661 struct sdio_mmc_card *card = adapter->card; 2662 struct sdio_func *func = card->func; 2663 int ret; 2664 2665 /* Prepare the adapter for the reset. */ 2666 mwifiex_shutdown_sw(adapter); 2667 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags); 2668 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags); 2669 2670 /* Run a HW reset of the SDIO interface. */ 2671 sdio_claim_host(func); 2672 ret = mmc_hw_reset(func->card); 2673 sdio_release_host(func); 2674 2675 switch (ret) { 2676 case 1: 2677 dev_dbg(&func->dev, "SDIO HW reset asynchronous\n"); 2678 complete_all(adapter->fw_done); 2679 break; 2680 case 0: 2681 ret = mwifiex_reinit_sw(adapter); 2682 if (ret) 2683 dev_err(&func->dev, "reinit failed: %d\n", ret); 2684 break; 2685 default: 2686 dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret); 2687 break; 2688 } 2689 } 2690 2691 /* This function read/write firmware */ 2692 static enum 2693 rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, 2694 u8 doneflag) 2695 { 2696 struct sdio_mmc_card *card = adapter->card; 2697 int ret, tries; 2698 u8 ctrl_data = 0; 2699 2700 sdio_writeb(card->func, card->reg->fw_dump_host_ready, 2701 card->reg->fw_dump_ctrl, &ret); 2702 if (ret) { 2703 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n"); 2704 return RDWR_STATUS_FAILURE; 2705 } 2706 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 2707 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, 2708 &ret); 2709 if (ret) { 2710 mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); 2711 return RDWR_STATUS_FAILURE; 2712 } 2713 if (ctrl_data == FW_DUMP_DONE) 2714 break; 2715 if (doneflag && ctrl_data == doneflag) 2716 return RDWR_STATUS_DONE; 2717 if (ctrl_data != card->reg->fw_dump_host_ready) { 2718 mwifiex_dbg(adapter, WARN, 2719 "The ctrl reg was changed, re-try again\n"); 2720 sdio_writeb(card->func, card->reg->fw_dump_host_ready, 2721 card->reg->fw_dump_ctrl, &ret); 2722 if (ret) { 2723 mwifiex_dbg(adapter, ERROR, "SDIO write err\n"); 2724 return RDWR_STATUS_FAILURE; 2725 } 2726 } 2727 usleep_range(100, 200); 2728 } 2729 if (ctrl_data == card->reg->fw_dump_host_ready) { 2730 mwifiex_dbg(adapter, ERROR, 2731 "Fail to pull ctrl_data\n"); 2732 return RDWR_STATUS_FAILURE; 2733 } 2734 2735 return RDWR_STATUS_SUCCESS; 2736 } 2737 2738 /* This function dump firmware memory to file */ 2739 static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) 2740 { 2741 struct sdio_mmc_card *card = adapter->card; 2742 int ret = 0; 2743 unsigned int reg, reg_start, reg_end; 2744 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; 2745 enum rdwr_status stat; 2746 u32 memory_size; 2747 2748 if (!card->can_dump_fw) 2749 return; 2750 2751 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { 2752 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 2753 2754 if (entry->mem_ptr) { 2755 vfree(entry->mem_ptr); 2756 entry->mem_ptr = NULL; 2757 } 2758 entry->mem_size = 0; 2759 } 2760 2761 mwifiex_pm_wakeup_card(adapter); 2762 sdio_claim_host(card->func); 2763 2764 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n"); 2765 2766 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2767 if (stat == RDWR_STATUS_FAILURE) 2768 goto done; 2769 2770 reg = card->reg->fw_dump_start; 2771 /* Read the number of the memories which will dump */ 2772 dump_num = sdio_readb(card->func, reg, &ret); 2773 if (ret) { 2774 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n"); 2775 goto done; 2776 } 2777 2778 /* Read the length of every memory which will dump */ 2779 for (idx = 0; idx < dump_num; idx++) { 2780 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 2781 2782 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2783 if (stat == RDWR_STATUS_FAILURE) 2784 goto done; 2785 2786 memory_size = 0; 2787 reg = card->reg->fw_dump_start; 2788 for (i = 0; i < 4; i++) { 2789 read_reg = sdio_readb(card->func, reg, &ret); 2790 if (ret) { 2791 mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); 2792 goto done; 2793 } 2794 memory_size |= (read_reg << i*8); 2795 reg++; 2796 } 2797 2798 if (memory_size == 0) { 2799 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n"); 2800 ret = mwifiex_write_reg(adapter, 2801 card->reg->fw_dump_ctrl, 2802 FW_DUMP_READ_DONE); 2803 if (ret) { 2804 mwifiex_dbg(adapter, ERROR, "SDIO write err\n"); 2805 return; 2806 } 2807 break; 2808 } 2809 2810 mwifiex_dbg(adapter, DUMP, 2811 "%s_SIZE=0x%x\n", entry->mem_name, memory_size); 2812 entry->mem_ptr = vmalloc(memory_size + 1); 2813 entry->mem_size = memory_size; 2814 if (!entry->mem_ptr) { 2815 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n", 2816 entry->mem_name); 2817 goto done; 2818 } 2819 dbg_ptr = entry->mem_ptr; 2820 end_ptr = dbg_ptr + memory_size; 2821 2822 doneflag = entry->done_flag; 2823 mwifiex_dbg(adapter, DUMP, 2824 "Start %s output, please wait...\n", 2825 entry->mem_name); 2826 2827 do { 2828 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2829 if (stat == RDWR_STATUS_FAILURE) 2830 goto done; 2831 2832 reg_start = card->reg->fw_dump_start; 2833 reg_end = card->reg->fw_dump_end; 2834 for (reg = reg_start; reg <= reg_end; reg++) { 2835 *dbg_ptr = sdio_readb(card->func, reg, &ret); 2836 if (ret) { 2837 mwifiex_dbg(adapter, ERROR, 2838 "SDIO read err\n"); 2839 goto done; 2840 } 2841 if (dbg_ptr < end_ptr) 2842 dbg_ptr++; 2843 else 2844 mwifiex_dbg(adapter, ERROR, 2845 "Allocated buf not enough\n"); 2846 } 2847 2848 if (stat != RDWR_STATUS_DONE) 2849 continue; 2850 2851 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n", 2852 entry->mem_name, dbg_ptr - entry->mem_ptr); 2853 break; 2854 } while (1); 2855 } 2856 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n"); 2857 2858 done: 2859 sdio_release_host(card->func); 2860 } 2861 2862 static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter) 2863 { 2864 struct sdio_mmc_card *card = adapter->card; 2865 struct memory_type_mapping *entry = &generic_mem_type_map[0]; 2866 unsigned int reg, reg_start, reg_end; 2867 u8 start_flag = 0, done_flag = 0; 2868 u8 *dbg_ptr, *end_ptr; 2869 enum rdwr_status stat; 2870 int ret = -1, tries; 2871 2872 if (!card->fw_dump_enh) 2873 return; 2874 2875 if (entry->mem_ptr) { 2876 vfree(entry->mem_ptr); 2877 entry->mem_ptr = NULL; 2878 } 2879 entry->mem_size = 0; 2880 2881 mwifiex_pm_wakeup_card(adapter); 2882 sdio_claim_host(card->func); 2883 2884 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n"); 2885 2886 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag); 2887 if (stat == RDWR_STATUS_FAILURE) 2888 goto done; 2889 2890 reg_start = card->reg->fw_dump_start; 2891 reg_end = card->reg->fw_dump_end; 2892 for (reg = reg_start; reg <= reg_end; reg++) { 2893 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 2894 start_flag = sdio_readb(card->func, reg, &ret); 2895 if (ret) { 2896 mwifiex_dbg(adapter, ERROR, 2897 "SDIO read err\n"); 2898 goto done; 2899 } 2900 if (start_flag == 0) 2901 break; 2902 if (tries == MAX_POLL_TRIES) { 2903 mwifiex_dbg(adapter, ERROR, 2904 "FW not ready to dump\n"); 2905 ret = -1; 2906 goto done; 2907 } 2908 } 2909 usleep_range(100, 200); 2910 } 2911 2912 entry->mem_ptr = vmalloc(0xf0000 + 1); 2913 if (!entry->mem_ptr) { 2914 ret = -1; 2915 goto done; 2916 } 2917 dbg_ptr = entry->mem_ptr; 2918 entry->mem_size = 0xf0000; 2919 end_ptr = dbg_ptr + entry->mem_size; 2920 2921 done_flag = entry->done_flag; 2922 mwifiex_dbg(adapter, DUMP, 2923 "Start %s output, please wait...\n", entry->mem_name); 2924 2925 while (true) { 2926 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag); 2927 if (stat == RDWR_STATUS_FAILURE) 2928 goto done; 2929 for (reg = reg_start; reg <= reg_end; reg++) { 2930 *dbg_ptr = sdio_readb(card->func, reg, &ret); 2931 if (ret) { 2932 mwifiex_dbg(adapter, ERROR, 2933 "SDIO read err\n"); 2934 goto done; 2935 } 2936 dbg_ptr++; 2937 if (dbg_ptr >= end_ptr) { 2938 u8 *tmp_ptr; 2939 2940 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1); 2941 if (!tmp_ptr) 2942 goto done; 2943 2944 memcpy(tmp_ptr, entry->mem_ptr, 2945 entry->mem_size); 2946 vfree(entry->mem_ptr); 2947 entry->mem_ptr = tmp_ptr; 2948 tmp_ptr = NULL; 2949 dbg_ptr = entry->mem_ptr + entry->mem_size; 2950 entry->mem_size += 0x4000; 2951 end_ptr = entry->mem_ptr + entry->mem_size; 2952 } 2953 } 2954 if (stat == RDWR_STATUS_DONE) { 2955 entry->mem_size = dbg_ptr - entry->mem_ptr; 2956 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n", 2957 entry->mem_name, entry->mem_size); 2958 ret = 0; 2959 break; 2960 } 2961 } 2962 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n"); 2963 2964 done: 2965 if (ret) { 2966 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n"); 2967 if (entry->mem_ptr) { 2968 vfree(entry->mem_ptr); 2969 entry->mem_ptr = NULL; 2970 } 2971 entry->mem_size = 0; 2972 } 2973 sdio_release_host(card->func); 2974 } 2975 2976 static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter) 2977 { 2978 struct sdio_mmc_card *card = adapter->card; 2979 2980 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE); 2981 if (!adapter->devdump_data) { 2982 mwifiex_dbg(adapter, ERROR, 2983 "vzalloc devdump data failure!\n"); 2984 return; 2985 } 2986 2987 mwifiex_drv_info_dump(adapter); 2988 if (card->fw_dump_enh) 2989 mwifiex_sdio_generic_fw_dump(adapter); 2990 else 2991 mwifiex_sdio_fw_dump(adapter); 2992 mwifiex_prepare_fw_dump_info(adapter); 2993 mwifiex_upload_device_dump(adapter); 2994 } 2995 2996 static void mwifiex_sdio_work(struct work_struct *work) 2997 { 2998 struct sdio_mmc_card *card = 2999 container_of(work, struct sdio_mmc_card, work); 3000 3001 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 3002 &card->work_flags)) 3003 mwifiex_sdio_device_dump_work(card->adapter); 3004 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, 3005 &card->work_flags)) 3006 mwifiex_sdio_card_reset_work(card->adapter); 3007 } 3008 3009 /* This function resets the card */ 3010 static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) 3011 { 3012 struct sdio_mmc_card *card = adapter->card; 3013 3014 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags)) 3015 schedule_work(&card->work); 3016 } 3017 3018 /* This function dumps FW information */ 3019 static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter) 3020 { 3021 struct sdio_mmc_card *card = adapter->card; 3022 3023 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 3024 &card->work_flags)) 3025 schedule_work(&card->work); 3026 } 3027 3028 /* Function to dump SDIO function registers and SDIO scratch registers in case 3029 * of FW crash 3030 */ 3031 static int 3032 mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf) 3033 { 3034 char *p = drv_buf; 3035 struct sdio_mmc_card *cardp = adapter->card; 3036 int ret = 0; 3037 u8 count, func, data, index = 0, size = 0; 3038 u8 reg, reg_start, reg_end; 3039 char buf[256], *ptr; 3040 3041 if (!p) 3042 return 0; 3043 3044 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n"); 3045 3046 mwifiex_pm_wakeup_card(adapter); 3047 3048 sdio_claim_host(cardp->func); 3049 3050 for (count = 0; count < 5; count++) { 3051 memset(buf, 0, sizeof(buf)); 3052 ptr = buf; 3053 3054 switch (count) { 3055 case 0: 3056 /* Read the registers of SDIO function0 */ 3057 func = count; 3058 reg_start = 0; 3059 reg_end = 9; 3060 break; 3061 case 1: 3062 /* Read the registers of SDIO function1 */ 3063 func = count; 3064 reg_start = cardp->reg->func1_dump_reg_start; 3065 reg_end = cardp->reg->func1_dump_reg_end; 3066 break; 3067 case 2: 3068 index = 0; 3069 func = 1; 3070 reg_start = cardp->reg->func1_spec_reg_table[index++]; 3071 size = cardp->reg->func1_spec_reg_num; 3072 reg_end = cardp->reg->func1_spec_reg_table[size-1]; 3073 break; 3074 default: 3075 /* Read the scratch registers of SDIO function1 */ 3076 if (count == 4) 3077 mdelay(100); 3078 func = 1; 3079 reg_start = cardp->reg->func1_scratch_reg; 3080 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE; 3081 } 3082 3083 if (count != 2) 3084 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", 3085 func, reg_start, reg_end); 3086 else 3087 ptr += sprintf(ptr, "SDIO Func%d: ", func); 3088 3089 for (reg = reg_start; reg <= reg_end;) { 3090 if (func == 0) 3091 data = sdio_f0_readb(cardp->func, reg, &ret); 3092 else 3093 data = sdio_readb(cardp->func, reg, &ret); 3094 3095 if (count == 2) 3096 ptr += sprintf(ptr, "(%#x) ", reg); 3097 if (!ret) { 3098 ptr += sprintf(ptr, "%02x ", data); 3099 } else { 3100 ptr += sprintf(ptr, "ERR"); 3101 break; 3102 } 3103 3104 if (count == 2 && reg < reg_end) 3105 reg = cardp->reg->func1_spec_reg_table[index++]; 3106 else 3107 reg++; 3108 } 3109 3110 mwifiex_dbg(adapter, MSG, "%s\n", buf); 3111 p += sprintf(p, "%s\n", buf); 3112 } 3113 3114 sdio_release_host(cardp->func); 3115 3116 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n"); 3117 3118 return p - drv_buf; 3119 } 3120 3121 /* sdio device/function initialization, code is extracted 3122 * from init_if handler and register_dev handler. 3123 */ 3124 static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter) 3125 { 3126 struct sdio_mmc_card *card = adapter->card; 3127 u8 sdio_ireg; 3128 3129 sdio_claim_host(card->func); 3130 sdio_enable_func(card->func); 3131 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); 3132 sdio_release_host(card->func); 3133 3134 /* tx_buf_size might be changed to 3584 by firmware during 3135 * data transfer, we will reset to default size. 3136 */ 3137 adapter->tx_buf_size = card->tx_buf_size; 3138 3139 /* Read the host_int_status_reg for ACK the first interrupt got 3140 * from the bootloader. If we don't do this we get a interrupt 3141 * as soon as we register the irq. 3142 */ 3143 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); 3144 3145 if (mwifiex_init_sdio_ioport(adapter)) 3146 dev_err(&card->func->dev, "error enabling SDIO port\n"); 3147 } 3148 3149 static struct mwifiex_if_ops sdio_ops = { 3150 .init_if = mwifiex_init_sdio, 3151 .cleanup_if = mwifiex_cleanup_sdio, 3152 .check_fw_status = mwifiex_check_fw_status, 3153 .check_winner_status = mwifiex_check_winner_status, 3154 .prog_fw = mwifiex_prog_fw_w_helper, 3155 .register_dev = mwifiex_register_dev, 3156 .unregister_dev = mwifiex_unregister_dev, 3157 .enable_int = mwifiex_sdio_enable_host_int, 3158 .disable_int = mwifiex_sdio_disable_host_int, 3159 .process_int_status = mwifiex_process_int_status, 3160 .host_to_card = mwifiex_sdio_host_to_card, 3161 .wakeup = mwifiex_pm_wakeup_card, 3162 .wakeup_complete = mwifiex_pm_wakeup_card_complete, 3163 3164 /* SDIO specific */ 3165 .update_mp_end_port = mwifiex_update_mp_end_port, 3166 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, 3167 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, 3168 .event_complete = mwifiex_sdio_event_complete, 3169 .dnld_fw = mwifiex_sdio_dnld_fw, 3170 .card_reset = mwifiex_sdio_card_reset, 3171 .reg_dump = mwifiex_sdio_reg_dump, 3172 .device_dump = mwifiex_sdio_device_dump, 3173 .deaggr_pkt = mwifiex_deaggr_sdio_pkt, 3174 .up_dev = mwifiex_sdio_up_dev, 3175 }; 3176 3177 module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver); 3178 3179 MODULE_AUTHOR("Marvell International Ltd."); 3180 MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); 3181 MODULE_VERSION(SDIO_VERSION); 3182 MODULE_LICENSE("GPL v2"); 3183 MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); 3184 MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); 3185 MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); 3186 MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); 3187 MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME); 3188 MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME); 3189 MODULE_FIRMWARE(SD8978_SDIOUART_FW_NAME); 3190 MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME); 3191 MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME); 3192 MODULE_FIRMWARE(SD8997_SDIOUART_FW_NAME); 3193