1/* 2 * NXP Wireless LAN device driver: SDIO specific handling 3 * 4 * Copyright 2011-2020 NXP 5 * 6 * This software file (the "File") is distributed by NXP 7 * under the terms of the GNU General Public License Version 2, June 1991 8 * (the "License"). You may use, redistribute and/or modify this File in 9 * accordance with the terms and conditions of the License, a copy of which 10 * is available by writing to the Free Software Foundation, Inc., 11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the 12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. 13 * 14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE 16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about 17 * this warranty disclaimer. 18 */ 19 20#include <linux/firmware.h> 21 22#include "decl.h" 23#include "ioctl.h" 24#include "util.h" 25#include "fw.h" 26#include "main.h" 27#include "wmm.h" 28#include "11n.h" 29#include "sdio.h" 30 31 32#define SDIO_VERSION "1.0" 33 34static void mwifiex_sdio_work(struct work_struct *work); 35 36static struct mwifiex_if_ops sdio_ops; 37 38static const struct mwifiex_sdio_card_reg mwifiex_reg_sd87xx = { 39 .start_rd_port = 1, 40 .start_wr_port = 1, 41 .base_0_reg = 0x0040, 42 .base_1_reg = 0x0041, 43 .poll_reg = 0x30, 44 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK, 45 .host_int_rsr_reg = 0x1, 46 .host_int_mask_reg = 0x02, 47 .host_int_status_reg = 0x03, 48 .status_reg_0 = 0x60, 49 .status_reg_1 = 0x61, 50 .sdio_int_mask = 0x3f, 51 .data_port_mask = 0x0000fffe, 52 .io_port_0_reg = 0x78, 53 .io_port_1_reg = 0x79, 54 .io_port_2_reg = 0x7A, 55 .max_mp_regs = 64, 56 .rd_bitmap_l = 0x04, 57 .rd_bitmap_u = 0x05, 58 .wr_bitmap_l = 0x06, 59 .wr_bitmap_u = 0x07, 60 .rd_len_p0_l = 0x08, 61 .rd_len_p0_u = 0x09, 62 .card_misc_cfg_reg = 0x6c, 63 .func1_dump_reg_start = 0x0, 64 .func1_dump_reg_end = 0x9, 65 .func1_scratch_reg = 0x60, 66 .func1_spec_reg_num = 5, 67 .func1_spec_reg_table = {0x28, 0x30, 0x34, 0x38, 0x3c}, 68}; 69 70static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8897 = { 71 .start_rd_port = 0, 72 .start_wr_port = 0, 73 .base_0_reg = 0x60, 74 .base_1_reg = 0x61, 75 .poll_reg = 0x50, 76 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 77 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 78 .host_int_rsr_reg = 0x1, 79 .host_int_status_reg = 0x03, 80 .host_int_mask_reg = 0x02, 81 .status_reg_0 = 0xc0, 82 .status_reg_1 = 0xc1, 83 .sdio_int_mask = 0xff, 84 .data_port_mask = 0xffffffff, 85 .io_port_0_reg = 0xD8, 86 .io_port_1_reg = 0xD9, 87 .io_port_2_reg = 0xDA, 88 .max_mp_regs = 184, 89 .rd_bitmap_l = 0x04, 90 .rd_bitmap_u = 0x05, 91 .rd_bitmap_1l = 0x06, 92 .rd_bitmap_1u = 0x07, 93 .wr_bitmap_l = 0x08, 94 .wr_bitmap_u = 0x09, 95 .wr_bitmap_1l = 0x0a, 96 .wr_bitmap_1u = 0x0b, 97 .rd_len_p0_l = 0x0c, 98 .rd_len_p0_u = 0x0d, 99 .card_misc_cfg_reg = 0xcc, 100 .card_cfg_2_1_reg = 0xcd, 101 .cmd_rd_len_0 = 0xb4, 102 .cmd_rd_len_1 = 0xb5, 103 .cmd_rd_len_2 = 0xb6, 104 .cmd_rd_len_3 = 0xb7, 105 .cmd_cfg_0 = 0xb8, 106 .cmd_cfg_1 = 0xb9, 107 .cmd_cfg_2 = 0xba, 108 .cmd_cfg_3 = 0xbb, 109 .fw_dump_host_ready = 0xee, 110 .fw_dump_ctrl = 0xe2, 111 .fw_dump_start = 0xe3, 112 .fw_dump_end = 0xea, 113 .func1_dump_reg_start = 0x0, 114 .func1_dump_reg_end = 0xb, 115 .func1_scratch_reg = 0xc0, 116 .func1_spec_reg_num = 8, 117 .func1_spec_reg_table = {0x4C, 0x50, 0x54, 0x55, 0x58, 118 0x59, 0x5c, 0x5d}, 119}; 120 121static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8977 = { 122 .start_rd_port = 0, 123 .start_wr_port = 0, 124 .base_0_reg = 0xF8, 125 .base_1_reg = 0xF9, 126 .poll_reg = 0x5C, 127 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 128 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 129 .host_int_rsr_reg = 0x4, 130 .host_int_status_reg = 0x0C, 131 .host_int_mask_reg = 0x08, 132 .status_reg_0 = 0xE8, 133 .status_reg_1 = 0xE9, 134 .sdio_int_mask = 0xff, 135 .data_port_mask = 0xffffffff, 136 .io_port_0_reg = 0xE4, 137 .io_port_1_reg = 0xE5, 138 .io_port_2_reg = 0xE6, 139 .max_mp_regs = 196, 140 .rd_bitmap_l = 0x10, 141 .rd_bitmap_u = 0x11, 142 .rd_bitmap_1l = 0x12, 143 .rd_bitmap_1u = 0x13, 144 .wr_bitmap_l = 0x14, 145 .wr_bitmap_u = 0x15, 146 .wr_bitmap_1l = 0x16, 147 .wr_bitmap_1u = 0x17, 148 .rd_len_p0_l = 0x18, 149 .rd_len_p0_u = 0x19, 150 .card_misc_cfg_reg = 0xd8, 151 .card_cfg_2_1_reg = 0xd9, 152 .cmd_rd_len_0 = 0xc0, 153 .cmd_rd_len_1 = 0xc1, 154 .cmd_rd_len_2 = 0xc2, 155 .cmd_rd_len_3 = 0xc3, 156 .cmd_cfg_0 = 0xc4, 157 .cmd_cfg_1 = 0xc5, 158 .cmd_cfg_2 = 0xc6, 159 .cmd_cfg_3 = 0xc7, 160 .fw_dump_host_ready = 0xcc, 161 .fw_dump_ctrl = 0xf0, 162 .fw_dump_start = 0xf1, 163 .fw_dump_end = 0xf8, 164 .func1_dump_reg_start = 0x10, 165 .func1_dump_reg_end = 0x17, 166 .func1_scratch_reg = 0xe8, 167 .func1_spec_reg_num = 13, 168 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 169 0x60, 0x61, 0x62, 0x64, 170 0x65, 0x66, 0x68, 0x69, 171 0x6a}, 172}; 173 174static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8997 = { 175 .start_rd_port = 0, 176 .start_wr_port = 0, 177 .base_0_reg = 0xF8, 178 .base_1_reg = 0xF9, 179 .poll_reg = 0x5C, 180 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 181 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 182 .host_int_rsr_reg = 0x4, 183 .host_int_status_reg = 0x0C, 184 .host_int_mask_reg = 0x08, 185 .status_reg_0 = 0xE8, 186 .status_reg_1 = 0xE9, 187 .sdio_int_mask = 0xff, 188 .data_port_mask = 0xffffffff, 189 .io_port_0_reg = 0xE4, 190 .io_port_1_reg = 0xE5, 191 .io_port_2_reg = 0xE6, 192 .max_mp_regs = 196, 193 .rd_bitmap_l = 0x10, 194 .rd_bitmap_u = 0x11, 195 .rd_bitmap_1l = 0x12, 196 .rd_bitmap_1u = 0x13, 197 .wr_bitmap_l = 0x14, 198 .wr_bitmap_u = 0x15, 199 .wr_bitmap_1l = 0x16, 200 .wr_bitmap_1u = 0x17, 201 .rd_len_p0_l = 0x18, 202 .rd_len_p0_u = 0x19, 203 .card_misc_cfg_reg = 0xd8, 204 .card_cfg_2_1_reg = 0xd9, 205 .cmd_rd_len_0 = 0xc0, 206 .cmd_rd_len_1 = 0xc1, 207 .cmd_rd_len_2 = 0xc2, 208 .cmd_rd_len_3 = 0xc3, 209 .cmd_cfg_0 = 0xc4, 210 .cmd_cfg_1 = 0xc5, 211 .cmd_cfg_2 = 0xc6, 212 .cmd_cfg_3 = 0xc7, 213 .fw_dump_host_ready = 0xcc, 214 .fw_dump_ctrl = 0xf0, 215 .fw_dump_start = 0xf1, 216 .fw_dump_end = 0xf8, 217 .func1_dump_reg_start = 0x10, 218 .func1_dump_reg_end = 0x17, 219 .func1_scratch_reg = 0xe8, 220 .func1_spec_reg_num = 13, 221 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 222 0x60, 0x61, 0x62, 0x64, 223 0x65, 0x66, 0x68, 0x69, 224 0x6a}, 225}; 226 227static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8887 = { 228 .start_rd_port = 0, 229 .start_wr_port = 0, 230 .base_0_reg = 0x6C, 231 .base_1_reg = 0x6D, 232 .poll_reg = 0x5C, 233 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 234 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 235 .host_int_rsr_reg = 0x4, 236 .host_int_status_reg = 0x0C, 237 .host_int_mask_reg = 0x08, 238 .status_reg_0 = 0x90, 239 .status_reg_1 = 0x91, 240 .sdio_int_mask = 0xff, 241 .data_port_mask = 0xffffffff, 242 .io_port_0_reg = 0xE4, 243 .io_port_1_reg = 0xE5, 244 .io_port_2_reg = 0xE6, 245 .max_mp_regs = 196, 246 .rd_bitmap_l = 0x10, 247 .rd_bitmap_u = 0x11, 248 .rd_bitmap_1l = 0x12, 249 .rd_bitmap_1u = 0x13, 250 .wr_bitmap_l = 0x14, 251 .wr_bitmap_u = 0x15, 252 .wr_bitmap_1l = 0x16, 253 .wr_bitmap_1u = 0x17, 254 .rd_len_p0_l = 0x18, 255 .rd_len_p0_u = 0x19, 256 .card_misc_cfg_reg = 0xd8, 257 .card_cfg_2_1_reg = 0xd9, 258 .cmd_rd_len_0 = 0xc0, 259 .cmd_rd_len_1 = 0xc1, 260 .cmd_rd_len_2 = 0xc2, 261 .cmd_rd_len_3 = 0xc3, 262 .cmd_cfg_0 = 0xc4, 263 .cmd_cfg_1 = 0xc5, 264 .cmd_cfg_2 = 0xc6, 265 .cmd_cfg_3 = 0xc7, 266 .func1_dump_reg_start = 0x10, 267 .func1_dump_reg_end = 0x17, 268 .func1_scratch_reg = 0x90, 269 .func1_spec_reg_num = 13, 270 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60, 271 0x61, 0x62, 0x64, 0x65, 0x66, 272 0x68, 0x69, 0x6a}, 273}; 274 275static const struct mwifiex_sdio_card_reg mwifiex_reg_sd8987 = { 276 .start_rd_port = 0, 277 .start_wr_port = 0, 278 .base_0_reg = 0xF8, 279 .base_1_reg = 0xF9, 280 .poll_reg = 0x5C, 281 .host_int_enable = UP_LD_HOST_INT_MASK | DN_LD_HOST_INT_MASK | 282 CMD_PORT_UPLD_INT_MASK | CMD_PORT_DNLD_INT_MASK, 283 .host_int_rsr_reg = 0x4, 284 .host_int_status_reg = 0x0C, 285 .host_int_mask_reg = 0x08, 286 .status_reg_0 = 0xE8, 287 .status_reg_1 = 0xE9, 288 .sdio_int_mask = 0xff, 289 .data_port_mask = 0xffffffff, 290 .io_port_0_reg = 0xE4, 291 .io_port_1_reg = 0xE5, 292 .io_port_2_reg = 0xE6, 293 .max_mp_regs = 196, 294 .rd_bitmap_l = 0x10, 295 .rd_bitmap_u = 0x11, 296 .rd_bitmap_1l = 0x12, 297 .rd_bitmap_1u = 0x13, 298 .wr_bitmap_l = 0x14, 299 .wr_bitmap_u = 0x15, 300 .wr_bitmap_1l = 0x16, 301 .wr_bitmap_1u = 0x17, 302 .rd_len_p0_l = 0x18, 303 .rd_len_p0_u = 0x19, 304 .card_misc_cfg_reg = 0xd8, 305 .card_cfg_2_1_reg = 0xd9, 306 .cmd_rd_len_0 = 0xc0, 307 .cmd_rd_len_1 = 0xc1, 308 .cmd_rd_len_2 = 0xc2, 309 .cmd_rd_len_3 = 0xc3, 310 .cmd_cfg_0 = 0xc4, 311 .cmd_cfg_1 = 0xc5, 312 .cmd_cfg_2 = 0xc6, 313 .cmd_cfg_3 = 0xc7, 314 .fw_dump_host_ready = 0xcc, 315 .fw_dump_ctrl = 0xf9, 316 .fw_dump_start = 0xf1, 317 .fw_dump_end = 0xf8, 318 .func1_dump_reg_start = 0x10, 319 .func1_dump_reg_end = 0x17, 320 .func1_scratch_reg = 0xE8, 321 .func1_spec_reg_num = 13, 322 .func1_spec_reg_table = {0x08, 0x58, 0x5C, 0x5D, 0x60, 323 0x61, 0x62, 0x64, 0x65, 0x66, 324 0x68, 0x69, 0x6a}, 325}; 326 327static const struct mwifiex_sdio_device mwifiex_sdio_sd8786 = { 328 .firmware = SD8786_DEFAULT_FW_NAME, 329 .reg = &mwifiex_reg_sd87xx, 330 .max_ports = 16, 331 .mp_agg_pkt_limit = 8, 332 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 333 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 334 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 335 .supports_sdio_new_mode = false, 336 .has_control_mask = true, 337 .can_dump_fw = false, 338 .can_auto_tdls = false, 339 .can_ext_scan = false, 340}; 341 342static const struct mwifiex_sdio_device mwifiex_sdio_sd8787 = { 343 .firmware = SD8787_DEFAULT_FW_NAME, 344 .reg = &mwifiex_reg_sd87xx, 345 .max_ports = 16, 346 .mp_agg_pkt_limit = 8, 347 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 348 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 349 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 350 .supports_sdio_new_mode = false, 351 .has_control_mask = true, 352 .can_dump_fw = false, 353 .can_auto_tdls = false, 354 .can_ext_scan = true, 355}; 356 357static const struct mwifiex_sdio_device mwifiex_sdio_sd8797 = { 358 .firmware = SD8797_DEFAULT_FW_NAME, 359 .reg = &mwifiex_reg_sd87xx, 360 .max_ports = 16, 361 .mp_agg_pkt_limit = 8, 362 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 363 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 364 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 365 .supports_sdio_new_mode = false, 366 .has_control_mask = true, 367 .can_dump_fw = false, 368 .can_auto_tdls = false, 369 .can_ext_scan = true, 370}; 371 372static const struct mwifiex_sdio_device mwifiex_sdio_sd8897 = { 373 .firmware = SD8897_DEFAULT_FW_NAME, 374 .reg = &mwifiex_reg_sd8897, 375 .max_ports = 32, 376 .mp_agg_pkt_limit = 16, 377 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 378 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 379 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 380 .supports_sdio_new_mode = true, 381 .has_control_mask = false, 382 .can_dump_fw = true, 383 .can_auto_tdls = false, 384 .can_ext_scan = true, 385}; 386 387static const struct mwifiex_sdio_device mwifiex_sdio_sd8977 = { 388 .firmware = SD8977_DEFAULT_FW_NAME, 389 .reg = &mwifiex_reg_sd8977, 390 .max_ports = 32, 391 .mp_agg_pkt_limit = 16, 392 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 393 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 394 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 395 .supports_sdio_new_mode = true, 396 .has_control_mask = false, 397 .can_dump_fw = true, 398 .fw_dump_enh = true, 399 .can_auto_tdls = false, 400 .can_ext_scan = true, 401}; 402 403static const struct mwifiex_sdio_device mwifiex_sdio_sd8997 = { 404 .firmware = SD8997_DEFAULT_FW_NAME, 405 .reg = &mwifiex_reg_sd8997, 406 .max_ports = 32, 407 .mp_agg_pkt_limit = 16, 408 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_4K, 409 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 410 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 411 .supports_sdio_new_mode = true, 412 .has_control_mask = false, 413 .can_dump_fw = true, 414 .fw_dump_enh = true, 415 .can_auto_tdls = false, 416 .can_ext_scan = true, 417}; 418 419static const struct mwifiex_sdio_device mwifiex_sdio_sd8887 = { 420 .firmware = SD8887_DEFAULT_FW_NAME, 421 .reg = &mwifiex_reg_sd8887, 422 .max_ports = 32, 423 .mp_agg_pkt_limit = 16, 424 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 425 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K, 426 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_32K, 427 .supports_sdio_new_mode = true, 428 .has_control_mask = false, 429 .can_dump_fw = false, 430 .can_auto_tdls = true, 431 .can_ext_scan = true, 432}; 433 434static const struct mwifiex_sdio_device mwifiex_sdio_sd8987 = { 435 .firmware = SD8987_DEFAULT_FW_NAME, 436 .reg = &mwifiex_reg_sd8987, 437 .max_ports = 32, 438 .mp_agg_pkt_limit = 16, 439 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 440 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 441 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_MAX, 442 .supports_sdio_new_mode = true, 443 .has_control_mask = false, 444 .can_dump_fw = true, 445 .fw_dump_enh = true, 446 .can_auto_tdls = true, 447 .can_ext_scan = true, 448}; 449 450static const struct mwifiex_sdio_device mwifiex_sdio_sd8801 = { 451 .firmware = SD8801_DEFAULT_FW_NAME, 452 .reg = &mwifiex_reg_sd87xx, 453 .max_ports = 16, 454 .mp_agg_pkt_limit = 8, 455 .supports_sdio_new_mode = false, 456 .has_control_mask = true, 457 .tx_buf_size = MWIFIEX_TX_DATA_BUF_SIZE_2K, 458 .mp_tx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 459 .mp_rx_agg_buf_size = MWIFIEX_MP_AGGR_BUF_SIZE_16K, 460 .can_dump_fw = false, 461 .can_auto_tdls = false, 462 .can_ext_scan = true, 463}; 464 465static struct memory_type_mapping generic_mem_type_map[] = { 466 {"DUMP", NULL, 0, 0xDD}, 467}; 468 469static struct memory_type_mapping mem_type_mapping_tbl[] = { 470 {"ITCM", NULL, 0, 0xF0}, 471 {"DTCM", NULL, 0, 0xF1}, 472 {"SQRAM", NULL, 0, 0xF2}, 473 {"APU", NULL, 0, 0xF3}, 474 {"CIU", NULL, 0, 0xF4}, 475 {"ICU", NULL, 0, 0xF5}, 476 {"MAC", NULL, 0, 0xF6}, 477 {"EXT7", NULL, 0, 0xF7}, 478 {"EXT8", NULL, 0, 0xF8}, 479 {"EXT9", NULL, 0, 0xF9}, 480 {"EXT10", NULL, 0, 0xFA}, 481 {"EXT11", NULL, 0, 0xFB}, 482 {"EXT12", NULL, 0, 0xFC}, 483 {"EXT13", NULL, 0, 0xFD}, 484 {"EXTLAST", NULL, 0, 0xFE}, 485}; 486 487static const struct of_device_id mwifiex_sdio_of_match_table[] __maybe_unused = { 488 { .compatible = "marvell,sd8787" }, 489 { .compatible = "marvell,sd8897" }, 490 { .compatible = "marvell,sd8997" }, 491 { } 492}; 493 494/* This function parse device tree node using mmc subnode devicetree API. 495 * The device node is saved in card->plt_of_node. 496 * if the device tree node exist and include interrupts attributes, this 497 * function will also request platform specific wakeup interrupt. 498 */ 499static int mwifiex_sdio_probe_of(struct device *dev) 500{ 501 if (!of_match_node(mwifiex_sdio_of_match_table, dev->of_node)) { 502 dev_err(dev, "required compatible string missing\n"); 503 return -EINVAL; 504 } 505 506 return 0; 507} 508 509/* 510 * SDIO probe. 511 * 512 * This function probes an mwifiex device and registers it. It allocates 513 * the card structure, enables SDIO function number and initiates the 514 * device registration and initialization procedure by adding a logical 515 * interface. 516 */ 517static int 518mwifiex_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id) 519{ 520 int ret; 521 struct sdio_mmc_card *card = NULL; 522 523 pr_debug("info: vendor=0x%4.04X device=0x%4.04X class=%d function=%d\n", 524 func->vendor, func->device, func->class, func->num); 525 526 card = devm_kzalloc(&func->dev, sizeof(*card), GFP_KERNEL); 527 if (!card) 528 return -ENOMEM; 529 530 init_completion(&card->fw_done); 531 532 card->func = func; 533 534 func->card->quirks |= MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; 535 536 if (id->driver_data) { 537 struct mwifiex_sdio_device *data = (void *)id->driver_data; 538 539 card->firmware = data->firmware; 540 card->reg = data->reg; 541 card->max_ports = data->max_ports; 542 card->mp_agg_pkt_limit = data->mp_agg_pkt_limit; 543 card->supports_sdio_new_mode = data->supports_sdio_new_mode; 544 card->has_control_mask = data->has_control_mask; 545 card->tx_buf_size = data->tx_buf_size; 546 card->mp_tx_agg_buf_size = data->mp_tx_agg_buf_size; 547 card->mp_rx_agg_buf_size = data->mp_rx_agg_buf_size; 548 card->can_dump_fw = data->can_dump_fw; 549 card->fw_dump_enh = data->fw_dump_enh; 550 card->can_auto_tdls = data->can_auto_tdls; 551 card->can_ext_scan = data->can_ext_scan; 552 INIT_WORK(&card->work, mwifiex_sdio_work); 553 } 554 555 sdio_claim_host(func); 556 ret = sdio_enable_func(func); 557 sdio_release_host(func); 558 559 if (ret) { 560 dev_err(&func->dev, "failed to enable function\n"); 561 return ret; 562 } 563 564 /* device tree node parsing and platform specific configuration*/ 565 if (func->dev.of_node) { 566 ret = mwifiex_sdio_probe_of(&func->dev); 567 if (ret) 568 goto err_disable; 569 } 570 571 ret = mwifiex_add_card(card, &card->fw_done, &sdio_ops, 572 MWIFIEX_SDIO, &func->dev); 573 if (ret) { 574 dev_err(&func->dev, "add card failed\n"); 575 goto err_disable; 576 } 577 578 return 0; 579 580err_disable: 581 sdio_claim_host(func); 582 sdio_disable_func(func); 583 sdio_release_host(func); 584 585 return ret; 586} 587 588/* 589 * SDIO resume. 590 * 591 * Kernel needs to suspend all functions separately. Therefore all 592 * registered functions must have drivers with suspend and resume 593 * methods. Failing that the kernel simply removes the whole card. 594 * 595 * If already not resumed, this function turns on the traffic and 596 * sends a host sleep cancel request to the firmware. 597 */ 598static int mwifiex_sdio_resume(struct device *dev) 599{ 600 struct sdio_func *func = dev_to_sdio_func(dev); 601 struct sdio_mmc_card *card; 602 struct mwifiex_adapter *adapter; 603 604 card = sdio_get_drvdata(func); 605 if (!card || !card->adapter) { 606 dev_err(dev, "resume: invalid card or adapter\n"); 607 return 0; 608 } 609 610 adapter = card->adapter; 611 612 if (!test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { 613 mwifiex_dbg(adapter, WARN, 614 "device already resumed\n"); 615 return 0; 616 } 617 618 clear_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); 619 620 /* Disable Host Sleep */ 621 mwifiex_cancel_hs(mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_STA), 622 MWIFIEX_SYNC_CMD); 623 624 mwifiex_disable_wake(adapter); 625 626 return 0; 627} 628 629/* Write data into SDIO card register. Caller claims SDIO device. */ 630static int 631mwifiex_write_reg_locked(struct sdio_func *func, u32 reg, u8 data) 632{ 633 int ret = -1; 634 635 sdio_writeb(func, data, reg, &ret); 636 return ret; 637} 638 639/* This function writes data into SDIO card register. 640 */ 641static int 642mwifiex_write_reg(struct mwifiex_adapter *adapter, u32 reg, u8 data) 643{ 644 struct sdio_mmc_card *card = adapter->card; 645 int ret; 646 647 sdio_claim_host(card->func); 648 ret = mwifiex_write_reg_locked(card->func, reg, data); 649 sdio_release_host(card->func); 650 651 return ret; 652} 653 654/* This function reads data from SDIO card register. 655 */ 656static int 657mwifiex_read_reg(struct mwifiex_adapter *adapter, u32 reg, u8 *data) 658{ 659 struct sdio_mmc_card *card = adapter->card; 660 int ret = -1; 661 u8 val; 662 663 sdio_claim_host(card->func); 664 val = sdio_readb(card->func, reg, &ret); 665 sdio_release_host(card->func); 666 667 *data = val; 668 669 return ret; 670} 671 672/* This function writes multiple data into SDIO card memory. 673 * 674 * This does not work in suspended mode. 675 */ 676static int 677mwifiex_write_data_sync(struct mwifiex_adapter *adapter, 678 u8 *buffer, u32 pkt_len, u32 port) 679{ 680 struct sdio_mmc_card *card = adapter->card; 681 int ret; 682 u8 blk_mode = 683 (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE : BLOCK_MODE; 684 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; 685 u32 blk_cnt = 686 (blk_mode == 687 BLOCK_MODE) ? (pkt_len / 688 MWIFIEX_SDIO_BLOCK_SIZE) : pkt_len; 689 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); 690 691 if (test_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags)) { 692 mwifiex_dbg(adapter, ERROR, 693 "%s: not allowed while suspended\n", __func__); 694 return -1; 695 } 696 697 sdio_claim_host(card->func); 698 699 ret = sdio_writesb(card->func, ioport, buffer, blk_cnt * blk_size); 700 701 sdio_release_host(card->func); 702 703 return ret; 704} 705 706/* This function reads multiple data from SDIO card memory. 707 */ 708static int mwifiex_read_data_sync(struct mwifiex_adapter *adapter, u8 *buffer, 709 u32 len, u32 port, u8 claim) 710{ 711 struct sdio_mmc_card *card = adapter->card; 712 int ret; 713 u8 blk_mode = (port & MWIFIEX_SDIO_BYTE_MODE_MASK) ? BYTE_MODE 714 : BLOCK_MODE; 715 u32 blk_size = (blk_mode == BLOCK_MODE) ? MWIFIEX_SDIO_BLOCK_SIZE : 1; 716 u32 blk_cnt = (blk_mode == BLOCK_MODE) ? (len / MWIFIEX_SDIO_BLOCK_SIZE) 717 : len; 718 u32 ioport = (port & MWIFIEX_SDIO_IO_PORT_MASK); 719 720 if (claim) 721 sdio_claim_host(card->func); 722 723 ret = sdio_readsb(card->func, buffer, ioport, blk_cnt * blk_size); 724 725 if (claim) 726 sdio_release_host(card->func); 727 728 return ret; 729} 730 731/* This function reads the firmware status. 732 */ 733static int 734mwifiex_sdio_read_fw_status(struct mwifiex_adapter *adapter, u16 *dat) 735{ 736 struct sdio_mmc_card *card = adapter->card; 737 const struct mwifiex_sdio_card_reg *reg = card->reg; 738 u8 fws0, fws1; 739 740 if (mwifiex_read_reg(adapter, reg->status_reg_0, &fws0)) 741 return -1; 742 743 if (mwifiex_read_reg(adapter, reg->status_reg_1, &fws1)) 744 return -1; 745 746 *dat = (u16)((fws1 << 8) | fws0); 747 return 0; 748} 749 750/* This function checks the firmware status in card. 751 */ 752static int mwifiex_check_fw_status(struct mwifiex_adapter *adapter, 753 u32 poll_num) 754{ 755 int ret = 0; 756 u16 firmware_stat; 757 u32 tries; 758 759 for (tries = 0; tries < poll_num; tries++) { 760 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); 761 if (ret) 762 continue; 763 if (firmware_stat == FIRMWARE_READY_SDIO) { 764 ret = 0; 765 break; 766 } 767 768 msleep(100); 769 ret = -1; 770 } 771 772 return ret; 773} 774 775/* This function checks if WLAN is the winner. 776 */ 777static int mwifiex_check_winner_status(struct mwifiex_adapter *adapter) 778{ 779 int ret = 0; 780 u8 winner = 0; 781 struct sdio_mmc_card *card = adapter->card; 782 783 if (mwifiex_read_reg(adapter, card->reg->status_reg_0, &winner)) 784 return -1; 785 786 if (winner) 787 adapter->winner = 0; 788 else 789 adapter->winner = 1; 790 791 return ret; 792} 793 794/* 795 * SDIO remove. 796 * 797 * This function removes the interface and frees up the card structure. 798 */ 799static void 800mwifiex_sdio_remove(struct sdio_func *func) 801{ 802 struct sdio_mmc_card *card; 803 struct mwifiex_adapter *adapter; 804 struct mwifiex_private *priv; 805 int ret = 0; 806 u16 firmware_stat; 807 808 card = sdio_get_drvdata(func); 809 if (!card) 810 return; 811 812 wait_for_completion(&card->fw_done); 813 814 adapter = card->adapter; 815 if (!adapter || !adapter->priv_num) 816 return; 817 818 mwifiex_dbg(adapter, INFO, "info: SDIO func num=%d\n", func->num); 819 820 ret = mwifiex_sdio_read_fw_status(adapter, &firmware_stat); 821 if (!ret && firmware_stat == FIRMWARE_READY_SDIO && 822 !adapter->mfg_mode) { 823 mwifiex_deauthenticate_all(adapter); 824 825 priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); 826 mwifiex_disable_auto_ds(priv); 827 mwifiex_init_shutdown_fw(priv, MWIFIEX_FUNC_SHUTDOWN); 828 } 829 830 mwifiex_remove_card(adapter); 831} 832 833/* 834 * SDIO suspend. 835 * 836 * Kernel needs to suspend all functions separately. Therefore all 837 * registered functions must have drivers with suspend and resume 838 * methods. Failing that the kernel simply removes the whole card. 839 * 840 * If already not suspended, this function allocates and sends a host 841 * sleep activate request to the firmware and turns off the traffic. 842 */ 843static int mwifiex_sdio_suspend(struct device *dev) 844{ 845 struct sdio_func *func = dev_to_sdio_func(dev); 846 struct sdio_mmc_card *card; 847 struct mwifiex_adapter *adapter; 848 mmc_pm_flag_t pm_flag = 0; 849 int ret = 0; 850 851 pm_flag = sdio_get_host_pm_caps(func); 852 pr_debug("cmd: %s: suspend: PM flag = 0x%x\n", 853 sdio_func_id(func), pm_flag); 854 if (!(pm_flag & MMC_PM_KEEP_POWER)) { 855 dev_err(dev, "%s: cannot remain alive while host is" 856 " suspended\n", sdio_func_id(func)); 857 return -ENOSYS; 858 } 859 860 card = sdio_get_drvdata(func); 861 if (!card) { 862 dev_err(dev, "suspend: invalid card\n"); 863 return 0; 864 } 865 866 /* Might still be loading firmware */ 867 wait_for_completion(&card->fw_done); 868 869 adapter = card->adapter; 870 if (!adapter) { 871 dev_err(dev, "adapter is not valid\n"); 872 return 0; 873 } 874 875 if (!adapter->is_up) 876 return -EBUSY; 877 878 mwifiex_enable_wake(adapter); 879 880 /* Enable the Host Sleep */ 881 if (!mwifiex_enable_hs(adapter)) { 882 mwifiex_dbg(adapter, ERROR, 883 "cmd: failed to suspend\n"); 884 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 885 mwifiex_disable_wake(adapter); 886 return -EFAULT; 887 } 888 889 mwifiex_dbg(adapter, INFO, 890 "cmd: suspend with MMC_PM_KEEP_POWER\n"); 891 ret = sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER); 892 893 /* Indicate device suspended */ 894 set_bit(MWIFIEX_IS_SUSPENDED, &adapter->work_flags); 895 clear_bit(MWIFIEX_IS_HS_ENABLING, &adapter->work_flags); 896 897 return ret; 898} 899 900static void mwifiex_sdio_coredump(struct device *dev) 901{ 902 struct sdio_func *func = dev_to_sdio_func(dev); 903 struct sdio_mmc_card *card; 904 905 card = sdio_get_drvdata(func); 906 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 907 &card->work_flags)) 908 schedule_work(&card->work); 909} 910 911/* WLAN IDs */ 912static const struct sdio_device_id mwifiex_ids[] = { 913 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8786_WLAN), 914 .driver_data = (unsigned long) &mwifiex_sdio_sd8786}, 915 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8787_WLAN), 916 .driver_data = (unsigned long) &mwifiex_sdio_sd8787}, 917 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8797_WLAN), 918 .driver_data = (unsigned long) &mwifiex_sdio_sd8797}, 919 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8897_WLAN), 920 .driver_data = (unsigned long) &mwifiex_sdio_sd8897}, 921 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8887_WLAN), 922 .driver_data = (unsigned long)&mwifiex_sdio_sd8887}, 923 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8801_WLAN), 924 .driver_data = (unsigned long)&mwifiex_sdio_sd8801}, 925 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8977_WLAN), 926 .driver_data = (unsigned long)&mwifiex_sdio_sd8977}, 927 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8987_WLAN), 928 .driver_data = (unsigned long)&mwifiex_sdio_sd8987}, 929 {SDIO_DEVICE(SDIO_VENDOR_ID_MARVELL, SDIO_DEVICE_ID_MARVELL_8997_WLAN), 930 .driver_data = (unsigned long)&mwifiex_sdio_sd8997}, 931 {}, 932}; 933 934MODULE_DEVICE_TABLE(sdio, mwifiex_ids); 935 936static const struct dev_pm_ops mwifiex_sdio_pm_ops = { 937 .suspend = mwifiex_sdio_suspend, 938 .resume = mwifiex_sdio_resume, 939}; 940 941static struct sdio_driver mwifiex_sdio = { 942 .name = "mwifiex_sdio", 943 .id_table = mwifiex_ids, 944 .probe = mwifiex_sdio_probe, 945 .remove = mwifiex_sdio_remove, 946 .drv = { 947 .owner = THIS_MODULE, 948 .coredump = mwifiex_sdio_coredump, 949 .pm = &mwifiex_sdio_pm_ops, 950 } 951}; 952 953/* 954 * This function wakes up the card. 955 * 956 * A host power up command is written to the card configuration 957 * register to wake up the card. 958 */ 959static int mwifiex_pm_wakeup_card(struct mwifiex_adapter *adapter) 960{ 961 mwifiex_dbg(adapter, EVENT, 962 "event: wakeup device...\n"); 963 964 return mwifiex_write_reg(adapter, CONFIGURATION_REG, HOST_POWER_UP); 965} 966 967/* 968 * This function is called after the card has woken up. 969 * 970 * The card configuration register is reset. 971 */ 972static int mwifiex_pm_wakeup_card_complete(struct mwifiex_adapter *adapter) 973{ 974 mwifiex_dbg(adapter, EVENT, 975 "cmd: wakeup device completed\n"); 976 977 return mwifiex_write_reg(adapter, CONFIGURATION_REG, 0); 978} 979 980static int mwifiex_sdio_dnld_fw(struct mwifiex_adapter *adapter, 981 struct mwifiex_fw_image *fw) 982{ 983 struct sdio_mmc_card *card = adapter->card; 984 int ret; 985 986 sdio_claim_host(card->func); 987 ret = mwifiex_dnld_fw(adapter, fw); 988 sdio_release_host(card->func); 989 990 return ret; 991} 992 993/* 994 * This function is used to initialize IO ports for the 995 * chipsets supporting SDIO new mode eg SD8897. 996 */ 997static int mwifiex_init_sdio_new_mode(struct mwifiex_adapter *adapter) 998{ 999 u8 reg; 1000 struct sdio_mmc_card *card = adapter->card; 1001 1002 adapter->ioport = MEM_PORT; 1003 1004 /* enable sdio new mode */ 1005 if (mwifiex_read_reg(adapter, card->reg->card_cfg_2_1_reg, ®)) 1006 return -1; 1007 if (mwifiex_write_reg(adapter, card->reg->card_cfg_2_1_reg, 1008 reg | CMD53_NEW_MODE)) 1009 return -1; 1010 1011 /* Configure cmd port and enable reading rx length from the register */ 1012 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_0, ®)) 1013 return -1; 1014 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_0, 1015 reg | CMD_PORT_RD_LEN_EN)) 1016 return -1; 1017 1018 /* Enable Dnld/Upld ready auto reset for cmd port after cmd53 is 1019 * completed 1020 */ 1021 if (mwifiex_read_reg(adapter, card->reg->cmd_cfg_1, ®)) 1022 return -1; 1023 if (mwifiex_write_reg(adapter, card->reg->cmd_cfg_1, 1024 reg | CMD_PORT_AUTO_EN)) 1025 return -1; 1026 1027 return 0; 1028} 1029 1030/* This function initializes the IO ports. 1031 * 1032 * The following operations are performed - 1033 * - Read the IO ports (0, 1 and 2) 1034 * - Set host interrupt Reset-To-Read to clear 1035 * - Set auto re-enable interrupt 1036 */ 1037static int mwifiex_init_sdio_ioport(struct mwifiex_adapter *adapter) 1038{ 1039 u8 reg; 1040 struct sdio_mmc_card *card = adapter->card; 1041 1042 adapter->ioport = 0; 1043 1044 if (card->supports_sdio_new_mode) { 1045 if (mwifiex_init_sdio_new_mode(adapter)) 1046 return -1; 1047 goto cont; 1048 } 1049 1050 /* Read the IO port */ 1051 if (!mwifiex_read_reg(adapter, card->reg->io_port_0_reg, ®)) 1052 adapter->ioport |= (reg & 0xff); 1053 else 1054 return -1; 1055 1056 if (!mwifiex_read_reg(adapter, card->reg->io_port_1_reg, ®)) 1057 adapter->ioport |= ((reg & 0xff) << 8); 1058 else 1059 return -1; 1060 1061 if (!mwifiex_read_reg(adapter, card->reg->io_port_2_reg, ®)) 1062 adapter->ioport |= ((reg & 0xff) << 16); 1063 else 1064 return -1; 1065cont: 1066 mwifiex_dbg(adapter, INFO, 1067 "info: SDIO FUNC1 IO port: %#x\n", adapter->ioport); 1068 1069 /* Set Host interrupt reset to read to clear */ 1070 if (!mwifiex_read_reg(adapter, card->reg->host_int_rsr_reg, ®)) 1071 mwifiex_write_reg(adapter, card->reg->host_int_rsr_reg, 1072 reg | card->reg->sdio_int_mask); 1073 else 1074 return -1; 1075 1076 /* Dnld/Upld ready set to auto reset */ 1077 if (!mwifiex_read_reg(adapter, card->reg->card_misc_cfg_reg, ®)) 1078 mwifiex_write_reg(adapter, card->reg->card_misc_cfg_reg, 1079 reg | AUTO_RE_ENABLE_INT); 1080 else 1081 return -1; 1082 1083 return 0; 1084} 1085 1086/* 1087 * This function sends data to the card. 1088 */ 1089static int mwifiex_write_data_to_card(struct mwifiex_adapter *adapter, 1090 u8 *payload, u32 pkt_len, u32 port) 1091{ 1092 u32 i = 0; 1093 int ret; 1094 1095 do { 1096 ret = mwifiex_write_data_sync(adapter, payload, pkt_len, port); 1097 if (ret) { 1098 i++; 1099 mwifiex_dbg(adapter, ERROR, 1100 "host_to_card, write iomem\t" 1101 "(%d) failed: %d\n", i, ret); 1102 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) 1103 mwifiex_dbg(adapter, ERROR, 1104 "write CFG reg failed\n"); 1105 1106 ret = -1; 1107 if (i > MAX_WRITE_IOMEM_RETRY) 1108 return ret; 1109 } 1110 } while (ret == -1); 1111 1112 return ret; 1113} 1114 1115/* 1116 * This function gets the read port. 1117 * 1118 * If control port bit is set in MP read bitmap, the control port 1119 * is returned, otherwise the current read port is returned and 1120 * the value is increased (provided it does not reach the maximum 1121 * limit, in which case it is reset to 1) 1122 */ 1123static int mwifiex_get_rd_port(struct mwifiex_adapter *adapter, u8 *port) 1124{ 1125 struct sdio_mmc_card *card = adapter->card; 1126 const struct mwifiex_sdio_card_reg *reg = card->reg; 1127 u32 rd_bitmap = card->mp_rd_bitmap; 1128 1129 mwifiex_dbg(adapter, DATA, 1130 "data: mp_rd_bitmap=0x%08x\n", rd_bitmap); 1131 1132 if (card->supports_sdio_new_mode) { 1133 if (!(rd_bitmap & reg->data_port_mask)) 1134 return -1; 1135 } else { 1136 if (!(rd_bitmap & (CTRL_PORT_MASK | reg->data_port_mask))) 1137 return -1; 1138 } 1139 1140 if ((card->has_control_mask) && 1141 (card->mp_rd_bitmap & CTRL_PORT_MASK)) { 1142 card->mp_rd_bitmap &= (u32) (~CTRL_PORT_MASK); 1143 *port = CTRL_PORT; 1144 mwifiex_dbg(adapter, DATA, 1145 "data: port=%d mp_rd_bitmap=0x%08x\n", 1146 *port, card->mp_rd_bitmap); 1147 return 0; 1148 } 1149 1150 if (!(card->mp_rd_bitmap & (1 << card->curr_rd_port))) 1151 return -1; 1152 1153 /* We are now handling the SDIO data ports */ 1154 card->mp_rd_bitmap &= (u32)(~(1 << card->curr_rd_port)); 1155 *port = card->curr_rd_port; 1156 1157 if (++card->curr_rd_port == card->max_ports) 1158 card->curr_rd_port = reg->start_rd_port; 1159 1160 mwifiex_dbg(adapter, DATA, 1161 "data: port=%d mp_rd_bitmap=0x%08x -> 0x%08x\n", 1162 *port, rd_bitmap, card->mp_rd_bitmap); 1163 1164 return 0; 1165} 1166 1167/* 1168 * This function gets the write port for data. 1169 * 1170 * The current write port is returned if available and the value is 1171 * increased (provided it does not reach the maximum limit, in which 1172 * case it is reset to 1) 1173 */ 1174static int mwifiex_get_wr_port_data(struct mwifiex_adapter *adapter, u32 *port) 1175{ 1176 struct sdio_mmc_card *card = adapter->card; 1177 const struct mwifiex_sdio_card_reg *reg = card->reg; 1178 u32 wr_bitmap = card->mp_wr_bitmap; 1179 1180 mwifiex_dbg(adapter, DATA, 1181 "data: mp_wr_bitmap=0x%08x\n", wr_bitmap); 1182 1183 if (!(wr_bitmap & card->mp_data_port_mask)) { 1184 adapter->data_sent = true; 1185 return -EBUSY; 1186 } 1187 1188 if (card->mp_wr_bitmap & (1 << card->curr_wr_port)) { 1189 card->mp_wr_bitmap &= (u32) (~(1 << card->curr_wr_port)); 1190 *port = card->curr_wr_port; 1191 if (++card->curr_wr_port == card->mp_end_port) 1192 card->curr_wr_port = reg->start_wr_port; 1193 } else { 1194 adapter->data_sent = true; 1195 return -EBUSY; 1196 } 1197 1198 if ((card->has_control_mask) && (*port == CTRL_PORT)) { 1199 mwifiex_dbg(adapter, ERROR, 1200 "invalid data port=%d cur port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", 1201 *port, card->curr_wr_port, wr_bitmap, 1202 card->mp_wr_bitmap); 1203 return -1; 1204 } 1205 1206 mwifiex_dbg(adapter, DATA, 1207 "data: port=%d mp_wr_bitmap=0x%08x -> 0x%08x\n", 1208 *port, wr_bitmap, card->mp_wr_bitmap); 1209 1210 return 0; 1211} 1212 1213/* 1214 * This function polls the card status. 1215 */ 1216static int 1217mwifiex_sdio_poll_card_status(struct mwifiex_adapter *adapter, u8 bits) 1218{ 1219 struct sdio_mmc_card *card = adapter->card; 1220 u32 tries; 1221 u8 cs; 1222 1223 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 1224 if (mwifiex_read_reg(adapter, card->reg->poll_reg, &cs)) 1225 break; 1226 else if ((cs & bits) == bits) 1227 return 0; 1228 1229 usleep_range(10, 20); 1230 } 1231 1232 mwifiex_dbg(adapter, ERROR, 1233 "poll card status failed, tries = %d\n", tries); 1234 1235 return -1; 1236} 1237 1238/* 1239 * This function disables the host interrupt. 1240 * 1241 * The host interrupt mask is read, the disable bit is reset and 1242 * written back to the card host interrupt mask register. 1243 */ 1244static void mwifiex_sdio_disable_host_int(struct mwifiex_adapter *adapter) 1245{ 1246 struct sdio_mmc_card *card = adapter->card; 1247 struct sdio_func *func = card->func; 1248 1249 sdio_claim_host(func); 1250 mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 0); 1251 sdio_release_irq(func); 1252 sdio_release_host(func); 1253} 1254 1255/* 1256 * This function reads the interrupt status from card. 1257 */ 1258static void mwifiex_interrupt_status(struct mwifiex_adapter *adapter) 1259{ 1260 struct sdio_mmc_card *card = adapter->card; 1261 u8 sdio_ireg; 1262 unsigned long flags; 1263 1264 if (mwifiex_read_data_sync(adapter, card->mp_regs, 1265 card->reg->max_mp_regs, 1266 REG_PORT | MWIFIEX_SDIO_BYTE_MODE_MASK, 0)) { 1267 mwifiex_dbg(adapter, ERROR, "read mp_regs failed\n"); 1268 return; 1269 } 1270 1271 sdio_ireg = card->mp_regs[card->reg->host_int_status_reg]; 1272 if (sdio_ireg) { 1273 /* 1274 * DN_LD_HOST_INT_STATUS and/or UP_LD_HOST_INT_STATUS 1275 * For SDIO new mode CMD port interrupts 1276 * DN_LD_CMD_PORT_HOST_INT_STATUS and/or 1277 * UP_LD_CMD_PORT_HOST_INT_STATUS 1278 * Clear the interrupt status register 1279 */ 1280 mwifiex_dbg(adapter, INTR, 1281 "int: sdio_ireg = %#x\n", sdio_ireg); 1282 spin_lock_irqsave(&adapter->int_lock, flags); 1283 adapter->int_status |= sdio_ireg; 1284 spin_unlock_irqrestore(&adapter->int_lock, flags); 1285 } 1286} 1287 1288/* 1289 * SDIO interrupt handler. 1290 * 1291 * This function reads the interrupt status from firmware and handles 1292 * the interrupt in current thread (ksdioirqd) right away. 1293 */ 1294static void 1295mwifiex_sdio_interrupt(struct sdio_func *func) 1296{ 1297 struct mwifiex_adapter *adapter; 1298 struct sdio_mmc_card *card; 1299 1300 card = sdio_get_drvdata(func); 1301 if (!card || !card->adapter) { 1302 pr_err("int: func=%p card=%p adapter=%p\n", 1303 func, card, card ? card->adapter : NULL); 1304 return; 1305 } 1306 adapter = card->adapter; 1307 1308 if (!adapter->pps_uapsd_mode && adapter->ps_state == PS_STATE_SLEEP) 1309 adapter->ps_state = PS_STATE_AWAKE; 1310 1311 mwifiex_interrupt_status(adapter); 1312 mwifiex_main_process(adapter); 1313} 1314 1315/* 1316 * This function enables the host interrupt. 1317 * 1318 * The host interrupt enable mask is written to the card 1319 * host interrupt mask register. 1320 */ 1321static int mwifiex_sdio_enable_host_int(struct mwifiex_adapter *adapter) 1322{ 1323 struct sdio_mmc_card *card = adapter->card; 1324 struct sdio_func *func = card->func; 1325 int ret; 1326 1327 sdio_claim_host(func); 1328 1329 /* Request the SDIO IRQ */ 1330 ret = sdio_claim_irq(func, mwifiex_sdio_interrupt); 1331 if (ret) { 1332 mwifiex_dbg(adapter, ERROR, 1333 "claim irq failed: ret=%d\n", ret); 1334 goto out; 1335 } 1336 1337 /* Simply write the mask to the register */ 1338 ret = mwifiex_write_reg_locked(func, card->reg->host_int_mask_reg, 1339 card->reg->host_int_enable); 1340 if (ret) { 1341 mwifiex_dbg(adapter, ERROR, 1342 "enable host interrupt failed\n"); 1343 sdio_release_irq(func); 1344 } 1345 1346out: 1347 sdio_release_host(func); 1348 return ret; 1349} 1350 1351/* 1352 * This function sends a data buffer to the card. 1353 */ 1354static int mwifiex_sdio_card_to_host(struct mwifiex_adapter *adapter, 1355 u32 *type, u8 *buffer, 1356 u32 npayload, u32 ioport) 1357{ 1358 int ret; 1359 u32 nb; 1360 1361 if (!buffer) { 1362 mwifiex_dbg(adapter, ERROR, 1363 "%s: buffer is NULL\n", __func__); 1364 return -1; 1365 } 1366 1367 ret = mwifiex_read_data_sync(adapter, buffer, npayload, ioport, 1); 1368 1369 if (ret) { 1370 mwifiex_dbg(adapter, ERROR, 1371 "%s: read iomem failed: %d\n", __func__, 1372 ret); 1373 return -1; 1374 } 1375 1376 nb = get_unaligned_le16((buffer)); 1377 if (nb > npayload) { 1378 mwifiex_dbg(adapter, ERROR, 1379 "%s: invalid packet, nb=%d npayload=%d\n", 1380 __func__, nb, npayload); 1381 return -1; 1382 } 1383 1384 *type = get_unaligned_le16((buffer + 2)); 1385 1386 return ret; 1387} 1388 1389/* 1390 * This function downloads the firmware to the card. 1391 * 1392 * Firmware is downloaded to the card in blocks. Every block download 1393 * is tested for CRC errors, and retried a number of times before 1394 * returning failure. 1395 */ 1396static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter, 1397 struct mwifiex_fw_image *fw) 1398{ 1399 struct sdio_mmc_card *card = adapter->card; 1400 const struct mwifiex_sdio_card_reg *reg = card->reg; 1401 int ret; 1402 u8 *firmware = fw->fw_buf; 1403 u32 firmware_len = fw->fw_len; 1404 u32 offset = 0; 1405 u8 base0, base1; 1406 u8 *fwbuf; 1407 u16 len = 0; 1408 u32 txlen, tx_blocks = 0, tries; 1409 u32 i = 0; 1410 1411 if (!firmware_len) { 1412 mwifiex_dbg(adapter, ERROR, 1413 "firmware image not found! Terminating download\n"); 1414 return -1; 1415 } 1416 1417 mwifiex_dbg(adapter, INFO, 1418 "info: downloading FW image (%d bytes)\n", 1419 firmware_len); 1420 1421 /* Assume that the allocated buffer is 8-byte aligned */ 1422 fwbuf = kzalloc(MWIFIEX_UPLD_SIZE, GFP_KERNEL); 1423 if (!fwbuf) 1424 return -ENOMEM; 1425 1426 sdio_claim_host(card->func); 1427 1428 /* Perform firmware data transfer */ 1429 do { 1430 /* The host polls for the DN_LD_CARD_RDY and CARD_IO_READY 1431 bits */ 1432 ret = mwifiex_sdio_poll_card_status(adapter, CARD_IO_READY | 1433 DN_LD_CARD_RDY); 1434 if (ret) { 1435 mwifiex_dbg(adapter, ERROR, 1436 "FW download with helper:\t" 1437 "poll status timeout @ %d\n", offset); 1438 goto done; 1439 } 1440 1441 /* More data? */ 1442 if (offset >= firmware_len) 1443 break; 1444 1445 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 1446 ret = mwifiex_read_reg(adapter, reg->base_0_reg, 1447 &base0); 1448 if (ret) { 1449 mwifiex_dbg(adapter, ERROR, 1450 "dev BASE0 register read failed:\t" 1451 "base0=%#04X(%d). Terminating dnld\n", 1452 base0, base0); 1453 goto done; 1454 } 1455 ret = mwifiex_read_reg(adapter, reg->base_1_reg, 1456 &base1); 1457 if (ret) { 1458 mwifiex_dbg(adapter, ERROR, 1459 "dev BASE1 register read failed:\t" 1460 "base1=%#04X(%d). Terminating dnld\n", 1461 base1, base1); 1462 goto done; 1463 } 1464 len = (u16) (((base1 & 0xff) << 8) | (base0 & 0xff)); 1465 1466 if (len) 1467 break; 1468 1469 usleep_range(10, 20); 1470 } 1471 1472 if (!len) { 1473 break; 1474 } else if (len > MWIFIEX_UPLD_SIZE) { 1475 mwifiex_dbg(adapter, ERROR, 1476 "FW dnld failed @ %d, invalid length %d\n", 1477 offset, len); 1478 ret = -1; 1479 goto done; 1480 } 1481 1482 txlen = len; 1483 1484 if (len & BIT(0)) { 1485 i++; 1486 if (i > MAX_WRITE_IOMEM_RETRY) { 1487 mwifiex_dbg(adapter, ERROR, 1488 "FW dnld failed @ %d, over max retry\n", 1489 offset); 1490 ret = -1; 1491 goto done; 1492 } 1493 mwifiex_dbg(adapter, ERROR, 1494 "CRC indicated by the helper:\t" 1495 "len = 0x%04X, txlen = %d\n", len, txlen); 1496 len &= ~BIT(0); 1497 /* Setting this to 0 to resend from same offset */ 1498 txlen = 0; 1499 } else { 1500 i = 0; 1501 1502 /* Set blocksize to transfer - checking for last 1503 block */ 1504 if (firmware_len - offset < txlen) 1505 txlen = firmware_len - offset; 1506 1507 tx_blocks = (txlen + MWIFIEX_SDIO_BLOCK_SIZE - 1) 1508 / MWIFIEX_SDIO_BLOCK_SIZE; 1509 1510 /* Copy payload to buffer */ 1511 memmove(fwbuf, &firmware[offset], txlen); 1512 } 1513 1514 ret = mwifiex_write_data_sync(adapter, fwbuf, tx_blocks * 1515 MWIFIEX_SDIO_BLOCK_SIZE, 1516 adapter->ioport); 1517 if (ret) { 1518 mwifiex_dbg(adapter, ERROR, 1519 "FW download, write iomem (%d) failed @ %d\n", 1520 i, offset); 1521 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, 0x04)) 1522 mwifiex_dbg(adapter, ERROR, 1523 "write CFG reg failed\n"); 1524 1525 ret = -1; 1526 goto done; 1527 } 1528 1529 offset += txlen; 1530 } while (true); 1531 1532 mwifiex_dbg(adapter, MSG, 1533 "info: FW download over, size %d bytes\n", offset); 1534 1535 ret = 0; 1536done: 1537 sdio_release_host(card->func); 1538 kfree(fwbuf); 1539 return ret; 1540} 1541 1542/* 1543 * This function decode sdio aggreation pkt. 1544 * 1545 * Based on the the data block size and pkt_len, 1546 * skb data will be decoded to few packets. 1547 */ 1548static void mwifiex_deaggr_sdio_pkt(struct mwifiex_adapter *adapter, 1549 struct sk_buff *skb) 1550{ 1551 u32 total_pkt_len, pkt_len; 1552 struct sk_buff *skb_deaggr; 1553 u16 blk_size; 1554 u8 blk_num; 1555 u8 *data; 1556 1557 data = skb->data; 1558 total_pkt_len = skb->len; 1559 1560 while (total_pkt_len >= (SDIO_HEADER_OFFSET + adapter->intf_hdr_len)) { 1561 if (total_pkt_len < adapter->sdio_rx_block_size) 1562 break; 1563 blk_num = *(data + BLOCK_NUMBER_OFFSET); 1564 blk_size = adapter->sdio_rx_block_size * blk_num; 1565 if (blk_size > total_pkt_len) { 1566 mwifiex_dbg(adapter, ERROR, 1567 "%s: error in blk_size,\t" 1568 "blk_num=%d, blk_size=%d, total_pkt_len=%d\n", 1569 __func__, blk_num, blk_size, total_pkt_len); 1570 break; 1571 } 1572 pkt_len = get_unaligned_le16((data + 1573 SDIO_HEADER_OFFSET)); 1574 if ((pkt_len + SDIO_HEADER_OFFSET) > blk_size) { 1575 mwifiex_dbg(adapter, ERROR, 1576 "%s: error in pkt_len,\t" 1577 "pkt_len=%d, blk_size=%d\n", 1578 __func__, pkt_len, blk_size); 1579 break; 1580 } 1581 1582 skb_deaggr = mwifiex_alloc_dma_align_buf(pkt_len, GFP_KERNEL); 1583 if (!skb_deaggr) 1584 break; 1585 skb_put(skb_deaggr, pkt_len); 1586 memcpy(skb_deaggr->data, data + SDIO_HEADER_OFFSET, pkt_len); 1587 skb_pull(skb_deaggr, adapter->intf_hdr_len); 1588 1589 mwifiex_handle_rx_packet(adapter, skb_deaggr); 1590 data += blk_size; 1591 total_pkt_len -= blk_size; 1592 } 1593} 1594 1595/* 1596 * This function decodes a received packet. 1597 * 1598 * Based on the type, the packet is treated as either a data, or 1599 * a command response, or an event, and the correct handler 1600 * function is invoked. 1601 */ 1602static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, 1603 struct sk_buff *skb, u32 upld_typ) 1604{ 1605 u8 *cmd_buf; 1606 u16 pkt_len; 1607 struct mwifiex_rxinfo *rx_info; 1608 1609 pkt_len = get_unaligned_le16(skb->data); 1610 1611 if (upld_typ != MWIFIEX_TYPE_AGGR_DATA) { 1612 skb_trim(skb, pkt_len); 1613 skb_pull(skb, adapter->intf_hdr_len); 1614 } 1615 1616 switch (upld_typ) { 1617 case MWIFIEX_TYPE_AGGR_DATA: 1618 mwifiex_dbg(adapter, INFO, 1619 "info: --- Rx: Aggr Data packet ---\n"); 1620 rx_info = MWIFIEX_SKB_RXCB(skb); 1621 rx_info->buf_type = MWIFIEX_TYPE_AGGR_DATA; 1622 if (adapter->rx_work_enabled) { 1623 skb_queue_tail(&adapter->rx_data_q, skb); 1624 atomic_inc(&adapter->rx_pending); 1625 adapter->data_received = true; 1626 } else { 1627 mwifiex_deaggr_sdio_pkt(adapter, skb); 1628 dev_kfree_skb_any(skb); 1629 } 1630 break; 1631 1632 case MWIFIEX_TYPE_DATA: 1633 mwifiex_dbg(adapter, DATA, 1634 "info: --- Rx: Data packet ---\n"); 1635 if (adapter->rx_work_enabled) { 1636 skb_queue_tail(&adapter->rx_data_q, skb); 1637 adapter->data_received = true; 1638 atomic_inc(&adapter->rx_pending); 1639 } else { 1640 mwifiex_handle_rx_packet(adapter, skb); 1641 } 1642 break; 1643 1644 case MWIFIEX_TYPE_CMD: 1645 mwifiex_dbg(adapter, CMD, 1646 "info: --- Rx: Cmd Response ---\n"); 1647 /* take care of curr_cmd = NULL case */ 1648 if (!adapter->curr_cmd) { 1649 cmd_buf = adapter->upld_buf; 1650 1651 if (adapter->ps_state == PS_STATE_SLEEP_CFM) 1652 mwifiex_process_sleep_confirm_resp(adapter, 1653 skb->data, 1654 skb->len); 1655 1656 memcpy(cmd_buf, skb->data, 1657 min_t(u32, MWIFIEX_SIZE_OF_CMD_BUFFER, 1658 skb->len)); 1659 1660 dev_kfree_skb_any(skb); 1661 } else { 1662 adapter->cmd_resp_received = true; 1663 adapter->curr_cmd->resp_skb = skb; 1664 } 1665 break; 1666 1667 case MWIFIEX_TYPE_EVENT: 1668 mwifiex_dbg(adapter, EVENT, 1669 "info: --- Rx: Event ---\n"); 1670 adapter->event_cause = get_unaligned_le32(skb->data); 1671 1672 if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) 1673 memcpy(adapter->event_body, 1674 skb->data + MWIFIEX_EVENT_HEADER_LEN, 1675 skb->len); 1676 1677 /* event cause has been saved to adapter->event_cause */ 1678 adapter->event_received = true; 1679 adapter->event_skb = skb; 1680 1681 break; 1682 1683 default: 1684 mwifiex_dbg(adapter, ERROR, 1685 "unknown upload type %#x\n", upld_typ); 1686 dev_kfree_skb_any(skb); 1687 break; 1688 } 1689 1690 return 0; 1691} 1692 1693/* 1694 * This function transfers received packets from card to driver, performing 1695 * aggregation if required. 1696 * 1697 * For data received on control port, or if aggregation is disabled, the 1698 * received buffers are uploaded as separate packets. However, if aggregation 1699 * is enabled and required, the buffers are copied onto an aggregation buffer, 1700 * provided there is space left, processed and finally uploaded. 1701 */ 1702static int mwifiex_sdio_card_to_host_mp_aggr(struct mwifiex_adapter *adapter, 1703 u16 rx_len, u8 port) 1704{ 1705 struct sdio_mmc_card *card = adapter->card; 1706 s32 f_do_rx_aggr = 0; 1707 s32 f_do_rx_cur = 0; 1708 s32 f_aggr_cur = 0; 1709 s32 f_post_aggr_cur = 0; 1710 struct sk_buff *skb_deaggr; 1711 struct sk_buff *skb = NULL; 1712 u32 pkt_len, pkt_type, mport, pind; 1713 u8 *curr_ptr; 1714 1715 if ((card->has_control_mask) && (port == CTRL_PORT)) { 1716 /* Read the command Resp without aggr */ 1717 mwifiex_dbg(adapter, CMD, 1718 "info: %s: no aggregation for cmd\t" 1719 "response\n", __func__); 1720 1721 f_do_rx_cur = 1; 1722 goto rx_curr_single; 1723 } 1724 1725 if (!card->mpa_rx.enabled) { 1726 mwifiex_dbg(adapter, WARN, 1727 "info: %s: rx aggregation disabled\n", 1728 __func__); 1729 1730 f_do_rx_cur = 1; 1731 goto rx_curr_single; 1732 } 1733 1734 if ((!card->has_control_mask && (card->mp_rd_bitmap & 1735 card->reg->data_port_mask)) || 1736 (card->has_control_mask && (card->mp_rd_bitmap & 1737 (~((u32) CTRL_PORT_MASK))))) { 1738 /* Some more data RX pending */ 1739 mwifiex_dbg(adapter, INFO, 1740 "info: %s: not last packet\n", __func__); 1741 1742 if (MP_RX_AGGR_IN_PROGRESS(card)) { 1743 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) { 1744 f_aggr_cur = 1; 1745 } else { 1746 /* No room in Aggr buf, do rx aggr now */ 1747 f_do_rx_aggr = 1; 1748 f_post_aggr_cur = 1; 1749 } 1750 } else { 1751 /* Rx aggr not in progress */ 1752 f_aggr_cur = 1; 1753 } 1754 1755 } else { 1756 /* No more data RX pending */ 1757 mwifiex_dbg(adapter, INFO, 1758 "info: %s: last packet\n", __func__); 1759 1760 if (MP_RX_AGGR_IN_PROGRESS(card)) { 1761 f_do_rx_aggr = 1; 1762 if (MP_RX_AGGR_BUF_HAS_ROOM(card, rx_len)) 1763 f_aggr_cur = 1; 1764 else 1765 /* No room in Aggr buf, do rx aggr now */ 1766 f_do_rx_cur = 1; 1767 } else { 1768 f_do_rx_cur = 1; 1769 } 1770 } 1771 1772 if (f_aggr_cur) { 1773 mwifiex_dbg(adapter, INFO, 1774 "info: current packet aggregation\n"); 1775 /* Curr pkt can be aggregated */ 1776 mp_rx_aggr_setup(card, rx_len, port); 1777 1778 if (MP_RX_AGGR_PKT_LIMIT_REACHED(card) || 1779 mp_rx_aggr_port_limit_reached(card)) { 1780 mwifiex_dbg(adapter, INFO, 1781 "info: %s: aggregated packet\t" 1782 "limit reached\n", __func__); 1783 /* No more pkts allowed in Aggr buf, rx it */ 1784 f_do_rx_aggr = 1; 1785 } 1786 } 1787 1788 if (f_do_rx_aggr) { 1789 /* do aggr RX now */ 1790 mwifiex_dbg(adapter, DATA, 1791 "info: do_rx_aggr: num of packets: %d\n", 1792 card->mpa_rx.pkt_cnt); 1793 1794 if (card->supports_sdio_new_mode) { 1795 int i; 1796 u32 port_count; 1797 1798 for (i = 0, port_count = 0; i < card->max_ports; i++) 1799 if (card->mpa_rx.ports & BIT(i)) 1800 port_count++; 1801 1802 /* Reading data from "start_port + 0" to "start_port + 1803 * port_count -1", so decrease the count by 1 1804 */ 1805 port_count--; 1806 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 1807 (port_count << 8)) + card->mpa_rx.start_port; 1808 } else { 1809 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 1810 (card->mpa_rx.ports << 4)) + 1811 card->mpa_rx.start_port; 1812 } 1813 1814 if (card->mpa_rx.pkt_cnt == 1) 1815 mport = adapter->ioport + card->mpa_rx.start_port; 1816 1817 if (mwifiex_read_data_sync(adapter, card->mpa_rx.buf, 1818 card->mpa_rx.buf_len, mport, 1)) 1819 goto error; 1820 1821 curr_ptr = card->mpa_rx.buf; 1822 1823 for (pind = 0; pind < card->mpa_rx.pkt_cnt; pind++) { 1824 u32 *len_arr = card->mpa_rx.len_arr; 1825 1826 /* get curr PKT len & type */ 1827 pkt_len = get_unaligned_le16(&curr_ptr[0]); 1828 pkt_type = get_unaligned_le16(&curr_ptr[2]); 1829 1830 /* copy pkt to deaggr buf */ 1831 skb_deaggr = mwifiex_alloc_dma_align_buf(len_arr[pind], 1832 GFP_KERNEL); 1833 if (!skb_deaggr) { 1834 mwifiex_dbg(adapter, ERROR, "skb allocation failure\t" 1835 "drop pkt len=%d type=%d\n", 1836 pkt_len, pkt_type); 1837 curr_ptr += len_arr[pind]; 1838 continue; 1839 } 1840 1841 skb_put(skb_deaggr, len_arr[pind]); 1842 1843 if ((pkt_type == MWIFIEX_TYPE_DATA || 1844 (pkt_type == MWIFIEX_TYPE_AGGR_DATA && 1845 adapter->sdio_rx_aggr_enable)) && 1846 (pkt_len <= len_arr[pind])) { 1847 1848 memcpy(skb_deaggr->data, curr_ptr, pkt_len); 1849 1850 skb_trim(skb_deaggr, pkt_len); 1851 1852 /* Process de-aggr packet */ 1853 mwifiex_decode_rx_packet(adapter, skb_deaggr, 1854 pkt_type); 1855 } else { 1856 mwifiex_dbg(adapter, ERROR, 1857 "drop wrong aggr pkt:\t" 1858 "sdio_single_port_rx_aggr=%d\t" 1859 "type=%d len=%d max_len=%d\n", 1860 adapter->sdio_rx_aggr_enable, 1861 pkt_type, pkt_len, len_arr[pind]); 1862 dev_kfree_skb_any(skb_deaggr); 1863 } 1864 curr_ptr += len_arr[pind]; 1865 } 1866 MP_RX_AGGR_BUF_RESET(card); 1867 } 1868 1869rx_curr_single: 1870 if (f_do_rx_cur) { 1871 mwifiex_dbg(adapter, INFO, "info: RX: port: %d, rx_len: %d\n", 1872 port, rx_len); 1873 1874 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL); 1875 if (!skb) { 1876 mwifiex_dbg(adapter, ERROR, 1877 "single skb allocated fail,\t" 1878 "drop pkt port=%d len=%d\n", port, rx_len); 1879 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, 1880 card->mpa_rx.buf, rx_len, 1881 adapter->ioport + port)) 1882 goto error; 1883 return 0; 1884 } 1885 1886 skb_put(skb, rx_len); 1887 1888 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, 1889 skb->data, skb->len, 1890 adapter->ioport + port)) 1891 goto error; 1892 if (!adapter->sdio_rx_aggr_enable && 1893 pkt_type == MWIFIEX_TYPE_AGGR_DATA) { 1894 mwifiex_dbg(adapter, ERROR, "drop wrong pkt type %d\t" 1895 "current SDIO RX Aggr not enabled\n", 1896 pkt_type); 1897 dev_kfree_skb_any(skb); 1898 return 0; 1899 } 1900 1901 mwifiex_decode_rx_packet(adapter, skb, pkt_type); 1902 } 1903 if (f_post_aggr_cur) { 1904 mwifiex_dbg(adapter, INFO, 1905 "info: current packet aggregation\n"); 1906 /* Curr pkt can be aggregated */ 1907 mp_rx_aggr_setup(card, rx_len, port); 1908 } 1909 1910 return 0; 1911error: 1912 if (MP_RX_AGGR_IN_PROGRESS(card)) 1913 MP_RX_AGGR_BUF_RESET(card); 1914 1915 if (f_do_rx_cur && skb) 1916 /* Single transfer pending. Free curr buff also */ 1917 dev_kfree_skb_any(skb); 1918 1919 return -1; 1920} 1921 1922/* 1923 * This function checks the current interrupt status. 1924 * 1925 * The following interrupts are checked and handled by this function - 1926 * - Data sent 1927 * - Command sent 1928 * - Packets received 1929 * 1930 * Since the firmware does not generate download ready interrupt if the 1931 * port updated is command port only, command sent interrupt checking 1932 * should be done manually, and for every SDIO interrupt. 1933 * 1934 * In case of Rx packets received, the packets are uploaded from card to 1935 * host and processed accordingly. 1936 */ 1937static int mwifiex_process_int_status(struct mwifiex_adapter *adapter) 1938{ 1939 struct sdio_mmc_card *card = adapter->card; 1940 const struct mwifiex_sdio_card_reg *reg = card->reg; 1941 int ret = 0; 1942 u8 sdio_ireg; 1943 struct sk_buff *skb; 1944 u8 port = CTRL_PORT; 1945 u32 len_reg_l, len_reg_u; 1946 u32 rx_blocks; 1947 u16 rx_len; 1948 unsigned long flags; 1949 u32 bitmap; 1950 u8 cr; 1951 1952 spin_lock_irqsave(&adapter->int_lock, flags); 1953 sdio_ireg = adapter->int_status; 1954 adapter->int_status = 0; 1955 spin_unlock_irqrestore(&adapter->int_lock, flags); 1956 1957 if (!sdio_ireg) 1958 return ret; 1959 1960 /* Following interrupt is only for SDIO new mode */ 1961 if (sdio_ireg & DN_LD_CMD_PORT_HOST_INT_STATUS && adapter->cmd_sent) 1962 adapter->cmd_sent = false; 1963 1964 /* Following interrupt is only for SDIO new mode */ 1965 if (sdio_ireg & UP_LD_CMD_PORT_HOST_INT_STATUS) { 1966 u32 pkt_type; 1967 1968 /* read the len of control packet */ 1969 rx_len = card->mp_regs[reg->cmd_rd_len_1] << 8; 1970 rx_len |= (u16)card->mp_regs[reg->cmd_rd_len_0]; 1971 rx_blocks = DIV_ROUND_UP(rx_len, MWIFIEX_SDIO_BLOCK_SIZE); 1972 if (rx_len <= adapter->intf_hdr_len || 1973 (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > 1974 MWIFIEX_RX_DATA_BUF_SIZE) 1975 return -1; 1976 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); 1977 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", rx_len); 1978 1979 skb = mwifiex_alloc_dma_align_buf(rx_len, GFP_KERNEL); 1980 if (!skb) 1981 return -1; 1982 1983 skb_put(skb, rx_len); 1984 1985 if (mwifiex_sdio_card_to_host(adapter, &pkt_type, skb->data, 1986 skb->len, adapter->ioport | 1987 CMD_PORT_SLCT)) { 1988 mwifiex_dbg(adapter, ERROR, 1989 "%s: failed to card_to_host", __func__); 1990 dev_kfree_skb_any(skb); 1991 goto term_cmd; 1992 } 1993 1994 if ((pkt_type != MWIFIEX_TYPE_CMD) && 1995 (pkt_type != MWIFIEX_TYPE_EVENT)) 1996 mwifiex_dbg(adapter, ERROR, 1997 "%s:Received wrong packet on cmd port", 1998 __func__); 1999 2000 mwifiex_decode_rx_packet(adapter, skb, pkt_type); 2001 } 2002 2003 if (sdio_ireg & DN_LD_HOST_INT_STATUS) { 2004 bitmap = (u32) card->mp_regs[reg->wr_bitmap_l]; 2005 bitmap |= ((u32) card->mp_regs[reg->wr_bitmap_u]) << 8; 2006 if (card->supports_sdio_new_mode) { 2007 bitmap |= 2008 ((u32) card->mp_regs[reg->wr_bitmap_1l]) << 16; 2009 bitmap |= 2010 ((u32) card->mp_regs[reg->wr_bitmap_1u]) << 24; 2011 } 2012 card->mp_wr_bitmap = bitmap; 2013 2014 mwifiex_dbg(adapter, INTR, 2015 "int: DNLD: wr_bitmap=0x%x\n", 2016 card->mp_wr_bitmap); 2017 if (adapter->data_sent && 2018 (card->mp_wr_bitmap & card->mp_data_port_mask)) { 2019 mwifiex_dbg(adapter, INTR, 2020 "info: <--- Tx DONE Interrupt --->\n"); 2021 adapter->data_sent = false; 2022 } 2023 } 2024 2025 /* As firmware will not generate download ready interrupt if the port 2026 updated is command port only, cmd_sent should be done for any SDIO 2027 interrupt. */ 2028 if (card->has_control_mask && adapter->cmd_sent) { 2029 /* Check if firmware has attach buffer at command port and 2030 update just that in wr_bit_map. */ 2031 card->mp_wr_bitmap |= 2032 (u32) card->mp_regs[reg->wr_bitmap_l] & CTRL_PORT_MASK; 2033 if (card->mp_wr_bitmap & CTRL_PORT_MASK) 2034 adapter->cmd_sent = false; 2035 } 2036 2037 mwifiex_dbg(adapter, INTR, "info: cmd_sent=%d data_sent=%d\n", 2038 adapter->cmd_sent, adapter->data_sent); 2039 if (sdio_ireg & UP_LD_HOST_INT_STATUS) { 2040 bitmap = (u32) card->mp_regs[reg->rd_bitmap_l]; 2041 bitmap |= ((u32) card->mp_regs[reg->rd_bitmap_u]) << 8; 2042 if (card->supports_sdio_new_mode) { 2043 bitmap |= 2044 ((u32) card->mp_regs[reg->rd_bitmap_1l]) << 16; 2045 bitmap |= 2046 ((u32) card->mp_regs[reg->rd_bitmap_1u]) << 24; 2047 } 2048 card->mp_rd_bitmap = bitmap; 2049 mwifiex_dbg(adapter, INTR, 2050 "int: UPLD: rd_bitmap=0x%x\n", 2051 card->mp_rd_bitmap); 2052 2053 while (true) { 2054 ret = mwifiex_get_rd_port(adapter, &port); 2055 if (ret) { 2056 mwifiex_dbg(adapter, INFO, 2057 "info: no more rd_port available\n"); 2058 break; 2059 } 2060 len_reg_l = reg->rd_len_p0_l + (port << 1); 2061 len_reg_u = reg->rd_len_p0_u + (port << 1); 2062 rx_len = ((u16) card->mp_regs[len_reg_u]) << 8; 2063 rx_len |= (u16) card->mp_regs[len_reg_l]; 2064 mwifiex_dbg(adapter, INFO, 2065 "info: RX: port=%d rx_len=%u\n", 2066 port, rx_len); 2067 rx_blocks = 2068 (rx_len + MWIFIEX_SDIO_BLOCK_SIZE - 2069 1) / MWIFIEX_SDIO_BLOCK_SIZE; 2070 if (rx_len <= adapter->intf_hdr_len || 2071 (card->mpa_rx.enabled && 2072 ((rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE) > 2073 card->mpa_rx.buf_size))) { 2074 mwifiex_dbg(adapter, ERROR, 2075 "invalid rx_len=%d\n", 2076 rx_len); 2077 return -1; 2078 } 2079 2080 rx_len = (u16) (rx_blocks * MWIFIEX_SDIO_BLOCK_SIZE); 2081 mwifiex_dbg(adapter, INFO, "info: rx_len = %d\n", 2082 rx_len); 2083 2084 if (mwifiex_sdio_card_to_host_mp_aggr(adapter, rx_len, 2085 port)) { 2086 mwifiex_dbg(adapter, ERROR, 2087 "card_to_host_mpa failed: int status=%#x\n", 2088 sdio_ireg); 2089 goto term_cmd; 2090 } 2091 } 2092 } 2093 2094 return 0; 2095 2096term_cmd: 2097 /* terminate cmd */ 2098 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) 2099 mwifiex_dbg(adapter, ERROR, "read CFG reg failed\n"); 2100 else 2101 mwifiex_dbg(adapter, INFO, 2102 "info: CFG reg val = %d\n", cr); 2103 2104 if (mwifiex_write_reg(adapter, CONFIGURATION_REG, (cr | 0x04))) 2105 mwifiex_dbg(adapter, ERROR, 2106 "write CFG reg failed\n"); 2107 else 2108 mwifiex_dbg(adapter, INFO, "info: write success\n"); 2109 2110 if (mwifiex_read_reg(adapter, CONFIGURATION_REG, &cr)) 2111 mwifiex_dbg(adapter, ERROR, 2112 "read CFG reg failed\n"); 2113 else 2114 mwifiex_dbg(adapter, INFO, 2115 "info: CFG reg val =%x\n", cr); 2116 2117 return -1; 2118} 2119 2120/* 2121 * This function aggregates transmission buffers in driver and downloads 2122 * the aggregated packet to card. 2123 * 2124 * The individual packets are aggregated by copying into an aggregation 2125 * buffer and then downloaded to the card. Previous unsent packets in the 2126 * aggregation buffer are pre-copied first before new packets are added. 2127 * Aggregation is done till there is space left in the aggregation buffer, 2128 * or till new packets are available. 2129 * 2130 * The function will only download the packet to the card when aggregation 2131 * stops, otherwise it will just aggregate the packet in aggregation buffer 2132 * and return. 2133 */ 2134static int mwifiex_host_to_card_mp_aggr(struct mwifiex_adapter *adapter, 2135 u8 *payload, u32 pkt_len, u32 port, 2136 u32 next_pkt_len) 2137{ 2138 struct sdio_mmc_card *card = adapter->card; 2139 int ret = 0; 2140 s32 f_send_aggr_buf = 0; 2141 s32 f_send_cur_buf = 0; 2142 s32 f_precopy_cur_buf = 0; 2143 s32 f_postcopy_cur_buf = 0; 2144 u32 mport; 2145 int index; 2146 2147 if (!card->mpa_tx.enabled || 2148 (card->has_control_mask && (port == CTRL_PORT)) || 2149 (card->supports_sdio_new_mode && (port == CMD_PORT_SLCT))) { 2150 mwifiex_dbg(adapter, WARN, 2151 "info: %s: tx aggregation disabled\n", 2152 __func__); 2153 2154 f_send_cur_buf = 1; 2155 goto tx_curr_single; 2156 } 2157 2158 if (next_pkt_len) { 2159 /* More pkt in TX queue */ 2160 mwifiex_dbg(adapter, INFO, 2161 "info: %s: more packets in queue.\n", 2162 __func__); 2163 2164 if (MP_TX_AGGR_IN_PROGRESS(card)) { 2165 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) { 2166 f_precopy_cur_buf = 1; 2167 2168 if (!(card->mp_wr_bitmap & 2169 (1 << card->curr_wr_port)) || 2170 !MP_TX_AGGR_BUF_HAS_ROOM( 2171 card, pkt_len + next_pkt_len)) 2172 f_send_aggr_buf = 1; 2173 } else { 2174 /* No room in Aggr buf, send it */ 2175 f_send_aggr_buf = 1; 2176 2177 if (!(card->mp_wr_bitmap & 2178 (1 << card->curr_wr_port))) 2179 f_send_cur_buf = 1; 2180 else 2181 f_postcopy_cur_buf = 1; 2182 } 2183 } else { 2184 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len) && 2185 (card->mp_wr_bitmap & (1 << card->curr_wr_port))) 2186 f_precopy_cur_buf = 1; 2187 else 2188 f_send_cur_buf = 1; 2189 } 2190 } else { 2191 /* Last pkt in TX queue */ 2192 mwifiex_dbg(adapter, INFO, 2193 "info: %s: Last packet in Tx Queue.\n", 2194 __func__); 2195 2196 if (MP_TX_AGGR_IN_PROGRESS(card)) { 2197 /* some packs in Aggr buf already */ 2198 f_send_aggr_buf = 1; 2199 2200 if (MP_TX_AGGR_BUF_HAS_ROOM(card, pkt_len)) 2201 f_precopy_cur_buf = 1; 2202 else 2203 /* No room in Aggr buf, send it */ 2204 f_send_cur_buf = 1; 2205 } else { 2206 f_send_cur_buf = 1; 2207 } 2208 } 2209 2210 if (f_precopy_cur_buf) { 2211 mwifiex_dbg(adapter, DATA, 2212 "data: %s: precopy current buffer\n", 2213 __func__); 2214 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); 2215 2216 if (MP_TX_AGGR_PKT_LIMIT_REACHED(card) || 2217 mp_tx_aggr_port_limit_reached(card)) 2218 /* No more pkts allowed in Aggr buf, send it */ 2219 f_send_aggr_buf = 1; 2220 } 2221 2222 if (f_send_aggr_buf) { 2223 mwifiex_dbg(adapter, DATA, 2224 "data: %s: send aggr buffer: %d %d\n", 2225 __func__, card->mpa_tx.start_port, 2226 card->mpa_tx.ports); 2227 if (card->supports_sdio_new_mode) { 2228 u32 port_count; 2229 int i; 2230 2231 for (i = 0, port_count = 0; i < card->max_ports; i++) 2232 if (card->mpa_tx.ports & BIT(i)) 2233 port_count++; 2234 2235 /* Writing data from "start_port + 0" to "start_port + 2236 * port_count -1", so decrease the count by 1 2237 */ 2238 port_count--; 2239 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 2240 (port_count << 8)) + card->mpa_tx.start_port; 2241 } else { 2242 mport = (adapter->ioport | SDIO_MPA_ADDR_BASE | 2243 (card->mpa_tx.ports << 4)) + 2244 card->mpa_tx.start_port; 2245 } 2246 2247 if (card->mpa_tx.pkt_cnt == 1) 2248 mport = adapter->ioport + card->mpa_tx.start_port; 2249 2250 ret = mwifiex_write_data_to_card(adapter, card->mpa_tx.buf, 2251 card->mpa_tx.buf_len, mport); 2252 2253 /* Save the last multi port tx aggreagation info to debug log */ 2254 index = adapter->dbg.last_sdio_mp_index; 2255 index = (index + 1) % MWIFIEX_DBG_SDIO_MP_NUM; 2256 adapter->dbg.last_sdio_mp_index = index; 2257 adapter->dbg.last_mp_wr_ports[index] = mport; 2258 adapter->dbg.last_mp_wr_bitmap[index] = card->mp_wr_bitmap; 2259 adapter->dbg.last_mp_wr_len[index] = card->mpa_tx.buf_len; 2260 adapter->dbg.last_mp_curr_wr_port[index] = card->curr_wr_port; 2261 2262 MP_TX_AGGR_BUF_RESET(card); 2263 } 2264 2265tx_curr_single: 2266 if (f_send_cur_buf) { 2267 mwifiex_dbg(adapter, DATA, 2268 "data: %s: send current buffer %d\n", 2269 __func__, port); 2270 ret = mwifiex_write_data_to_card(adapter, payload, pkt_len, 2271 adapter->ioport + port); 2272 } 2273 2274 if (f_postcopy_cur_buf) { 2275 mwifiex_dbg(adapter, DATA, 2276 "data: %s: postcopy current buffer\n", 2277 __func__); 2278 MP_TX_AGGR_BUF_PUT(card, payload, pkt_len, port); 2279 } 2280 2281 return ret; 2282} 2283 2284/* 2285 * This function downloads data from driver to card. 2286 * 2287 * Both commands and data packets are transferred to the card by this 2288 * function. 2289 * 2290 * This function adds the SDIO specific header to the front of the buffer 2291 * before transferring. The header contains the length of the packet and 2292 * the type. The firmware handles the packets based upon this set type. 2293 */ 2294static int mwifiex_sdio_host_to_card(struct mwifiex_adapter *adapter, 2295 u8 type, struct sk_buff *skb, 2296 struct mwifiex_tx_param *tx_param) 2297{ 2298 struct sdio_mmc_card *card = adapter->card; 2299 int ret; 2300 u32 buf_block_len; 2301 u32 blk_size; 2302 u32 port = CTRL_PORT; 2303 u8 *payload = (u8 *)skb->data; 2304 u32 pkt_len = skb->len; 2305 2306 /* Allocate buffer and copy payload */ 2307 blk_size = MWIFIEX_SDIO_BLOCK_SIZE; 2308 buf_block_len = (pkt_len + blk_size - 1) / blk_size; 2309 put_unaligned_le16((u16)pkt_len, payload + 0); 2310 put_unaligned_le16((u32)type, payload + 2); 2311 2312 2313 /* 2314 * This is SDIO specific header 2315 * u16 length, 2316 * u16 type (MWIFIEX_TYPE_DATA = 0, MWIFIEX_TYPE_CMD = 1, 2317 * MWIFIEX_TYPE_EVENT = 3) 2318 */ 2319 if (type == MWIFIEX_TYPE_DATA) { 2320 ret = mwifiex_get_wr_port_data(adapter, &port); 2321 if (ret) { 2322 mwifiex_dbg(adapter, ERROR, 2323 "%s: no wr_port available\n", 2324 __func__); 2325 return ret; 2326 } 2327 } else { 2328 adapter->cmd_sent = true; 2329 /* Type must be MWIFIEX_TYPE_CMD */ 2330 2331 if (pkt_len <= adapter->intf_hdr_len || 2332 pkt_len > MWIFIEX_UPLD_SIZE) 2333 mwifiex_dbg(adapter, ERROR, 2334 "%s: payload=%p, nb=%d\n", 2335 __func__, payload, pkt_len); 2336 2337 if (card->supports_sdio_new_mode) 2338 port = CMD_PORT_SLCT; 2339 } 2340 2341 /* Transfer data to card */ 2342 pkt_len = buf_block_len * blk_size; 2343 2344 if (tx_param) 2345 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, 2346 port, tx_param->next_pkt_len 2347 ); 2348 else 2349 ret = mwifiex_host_to_card_mp_aggr(adapter, payload, pkt_len, 2350 port, 0); 2351 2352 if (ret) { 2353 if (type == MWIFIEX_TYPE_CMD) 2354 adapter->cmd_sent = false; 2355 if (type == MWIFIEX_TYPE_DATA) { 2356 adapter->data_sent = false; 2357 /* restore curr_wr_port in error cases */ 2358 card->curr_wr_port = port; 2359 card->mp_wr_bitmap |= (u32)(1 << card->curr_wr_port); 2360 } 2361 } else { 2362 if (type == MWIFIEX_TYPE_DATA) { 2363 if (!(card->mp_wr_bitmap & (1 << card->curr_wr_port))) 2364 adapter->data_sent = true; 2365 else 2366 adapter->data_sent = false; 2367 } 2368 } 2369 2370 return ret; 2371} 2372 2373/* 2374 * This function allocates the MPA Tx and Rx buffers. 2375 */ 2376static int mwifiex_alloc_sdio_mpa_buffers(struct mwifiex_adapter *adapter, 2377 u32 mpa_tx_buf_size, u32 mpa_rx_buf_size) 2378{ 2379 struct sdio_mmc_card *card = adapter->card; 2380 u32 rx_buf_size; 2381 int ret = 0; 2382 2383 card->mpa_tx.buf = kzalloc(mpa_tx_buf_size, GFP_KERNEL); 2384 if (!card->mpa_tx.buf) { 2385 ret = -1; 2386 goto error; 2387 } 2388 2389 card->mpa_tx.buf_size = mpa_tx_buf_size; 2390 2391 rx_buf_size = max_t(u32, mpa_rx_buf_size, 2392 (u32)SDIO_MAX_AGGR_BUF_SIZE); 2393 card->mpa_rx.buf = kzalloc(rx_buf_size, GFP_KERNEL); 2394 if (!card->mpa_rx.buf) { 2395 ret = -1; 2396 goto error; 2397 } 2398 2399 card->mpa_rx.buf_size = rx_buf_size; 2400 2401error: 2402 if (ret) { 2403 kfree(card->mpa_tx.buf); 2404 kfree(card->mpa_rx.buf); 2405 card->mpa_tx.buf_size = 0; 2406 card->mpa_rx.buf_size = 0; 2407 card->mpa_tx.buf = NULL; 2408 card->mpa_rx.buf = NULL; 2409 } 2410 2411 return ret; 2412} 2413 2414/* 2415 * This function unregisters the SDIO device. 2416 * 2417 * The SDIO IRQ is released, the function is disabled and driver 2418 * data is set to null. 2419 */ 2420static void 2421mwifiex_unregister_dev(struct mwifiex_adapter *adapter) 2422{ 2423 struct sdio_mmc_card *card = adapter->card; 2424 2425 if (adapter->card) { 2426 card->adapter = NULL; 2427 sdio_claim_host(card->func); 2428 sdio_disable_func(card->func); 2429 sdio_release_host(card->func); 2430 } 2431} 2432 2433/* 2434 * This function registers the SDIO device. 2435 * 2436 * SDIO IRQ is claimed, block size is set and driver data is initialized. 2437 */ 2438static int mwifiex_register_dev(struct mwifiex_adapter *adapter) 2439{ 2440 int ret; 2441 struct sdio_mmc_card *card = adapter->card; 2442 struct sdio_func *func = card->func; 2443 2444 /* save adapter pointer in card */ 2445 card->adapter = adapter; 2446 adapter->tx_buf_size = card->tx_buf_size; 2447 2448 sdio_claim_host(func); 2449 2450 /* Set block size */ 2451 ret = sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); 2452 sdio_release_host(func); 2453 if (ret) { 2454 mwifiex_dbg(adapter, ERROR, 2455 "cannot set SDIO block size\n"); 2456 return ret; 2457 } 2458 2459 strcpy(adapter->fw_name, card->firmware); 2460 if (card->fw_dump_enh) { 2461 adapter->mem_type_mapping_tbl = generic_mem_type_map; 2462 adapter->num_mem_types = 1; 2463 } else { 2464 adapter->mem_type_mapping_tbl = mem_type_mapping_tbl; 2465 adapter->num_mem_types = ARRAY_SIZE(mem_type_mapping_tbl); 2466 } 2467 2468 return 0; 2469} 2470 2471/* 2472 * This function initializes the SDIO driver. 2473 * 2474 * The following initializations steps are followed - 2475 * - Read the Host interrupt status register to acknowledge 2476 * the first interrupt got from bootloader 2477 * - Disable host interrupt mask register 2478 * - Get SDIO port 2479 * - Initialize SDIO variables in card 2480 * - Allocate MP registers 2481 * - Allocate MPA Tx and Rx buffers 2482 */ 2483static int mwifiex_init_sdio(struct mwifiex_adapter *adapter) 2484{ 2485 struct sdio_mmc_card *card = adapter->card; 2486 const struct mwifiex_sdio_card_reg *reg = card->reg; 2487 int ret; 2488 u8 sdio_ireg; 2489 2490 sdio_set_drvdata(card->func, card); 2491 2492 /* 2493 * Read the host_int_status_reg for ACK the first interrupt got 2494 * from the bootloader. If we don't do this we get a interrupt 2495 * as soon as we register the irq. 2496 */ 2497 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); 2498 2499 /* Get SDIO ioport */ 2500 mwifiex_init_sdio_ioport(adapter); 2501 2502 /* Initialize SDIO variables in card */ 2503 card->mp_rd_bitmap = 0; 2504 card->mp_wr_bitmap = 0; 2505 card->curr_rd_port = reg->start_rd_port; 2506 card->curr_wr_port = reg->start_wr_port; 2507 2508 card->mp_data_port_mask = reg->data_port_mask; 2509 2510 card->mpa_tx.buf_len = 0; 2511 card->mpa_tx.pkt_cnt = 0; 2512 card->mpa_tx.start_port = 0; 2513 2514 card->mpa_tx.enabled = 1; 2515 card->mpa_tx.pkt_aggr_limit = card->mp_agg_pkt_limit; 2516 2517 card->mpa_rx.buf_len = 0; 2518 card->mpa_rx.pkt_cnt = 0; 2519 card->mpa_rx.start_port = 0; 2520 2521 card->mpa_rx.enabled = 1; 2522 card->mpa_rx.pkt_aggr_limit = card->mp_agg_pkt_limit; 2523 2524 /* Allocate buffers for SDIO MP-A */ 2525 card->mp_regs = kzalloc(reg->max_mp_regs, GFP_KERNEL); 2526 if (!card->mp_regs) 2527 return -ENOMEM; 2528 2529 /* Allocate skb pointer buffers */ 2530 card->mpa_rx.skb_arr = kcalloc(card->mp_agg_pkt_limit, sizeof(void *), 2531 GFP_KERNEL); 2532 if (!card->mpa_rx.skb_arr) { 2533 kfree(card->mp_regs); 2534 return -ENOMEM; 2535 } 2536 2537 card->mpa_rx.len_arr = kcalloc(card->mp_agg_pkt_limit, 2538 sizeof(*card->mpa_rx.len_arr), 2539 GFP_KERNEL); 2540 if (!card->mpa_rx.len_arr) { 2541 kfree(card->mp_regs); 2542 kfree(card->mpa_rx.skb_arr); 2543 return -ENOMEM; 2544 } 2545 2546 ret = mwifiex_alloc_sdio_mpa_buffers(adapter, 2547 card->mp_tx_agg_buf_size, 2548 card->mp_rx_agg_buf_size); 2549 2550 /* Allocate 32k MPA Tx/Rx buffers if 64k memory allocation fails */ 2551 if (ret && (card->mp_tx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX || 2552 card->mp_rx_agg_buf_size == MWIFIEX_MP_AGGR_BUF_SIZE_MAX)) { 2553 /* Disable rx single port aggregation */ 2554 adapter->host_disable_sdio_rx_aggr = true; 2555 2556 ret = mwifiex_alloc_sdio_mpa_buffers 2557 (adapter, MWIFIEX_MP_AGGR_BUF_SIZE_32K, 2558 MWIFIEX_MP_AGGR_BUF_SIZE_32K); 2559 if (ret) { 2560 /* Disable multi port aggregation */ 2561 card->mpa_tx.enabled = 0; 2562 card->mpa_rx.enabled = 0; 2563 } 2564 } 2565 2566 adapter->auto_tdls = card->can_auto_tdls; 2567 adapter->ext_scan = card->can_ext_scan; 2568 return 0; 2569} 2570 2571/* 2572 * This function resets the MPA Tx and Rx buffers. 2573 */ 2574static void mwifiex_cleanup_mpa_buf(struct mwifiex_adapter *adapter) 2575{ 2576 struct sdio_mmc_card *card = adapter->card; 2577 2578 MP_TX_AGGR_BUF_RESET(card); 2579 MP_RX_AGGR_BUF_RESET(card); 2580} 2581 2582/* 2583 * This function cleans up the allocated card buffers. 2584 * 2585 * The following are freed by this function - 2586 * - MP registers 2587 * - MPA Tx buffer 2588 * - MPA Rx buffer 2589 */ 2590static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter) 2591{ 2592 struct sdio_mmc_card *card = adapter->card; 2593 2594 cancel_work_sync(&card->work); 2595 2596 kfree(card->mp_regs); 2597 kfree(card->mpa_rx.skb_arr); 2598 kfree(card->mpa_rx.len_arr); 2599 kfree(card->mpa_tx.buf); 2600 kfree(card->mpa_rx.buf); 2601} 2602 2603/* 2604 * This function updates the MP end port in card. 2605 */ 2606static void 2607mwifiex_update_mp_end_port(struct mwifiex_adapter *adapter, u16 port) 2608{ 2609 struct sdio_mmc_card *card = adapter->card; 2610 const struct mwifiex_sdio_card_reg *reg = card->reg; 2611 int i; 2612 2613 card->mp_end_port = port; 2614 2615 card->mp_data_port_mask = reg->data_port_mask; 2616 2617 if (reg->start_wr_port) { 2618 for (i = 1; i <= card->max_ports - card->mp_end_port; i++) 2619 card->mp_data_port_mask &= 2620 ~(1 << (card->max_ports - i)); 2621 } 2622 2623 card->curr_wr_port = reg->start_wr_port; 2624 2625 mwifiex_dbg(adapter, CMD, 2626 "cmd: mp_end_port %d, data port mask 0x%x\n", 2627 port, card->mp_data_port_mask); 2628} 2629 2630static void mwifiex_sdio_card_reset_work(struct mwifiex_adapter *adapter) 2631{ 2632 struct sdio_mmc_card *card = adapter->card; 2633 struct sdio_func *func = card->func; 2634 int ret; 2635 2636 /* Prepare the adapter for the reset. */ 2637 mwifiex_shutdown_sw(adapter); 2638 clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, &card->work_flags); 2639 clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags); 2640 2641 /* Run a HW reset of the SDIO interface. */ 2642 sdio_claim_host(func); 2643 ret = mmc_hw_reset(func->card->host); 2644 sdio_release_host(func); 2645 2646 switch (ret) { 2647 case 1: 2648 dev_dbg(&func->dev, "SDIO HW reset asynchronous\n"); 2649 complete_all(adapter->fw_done); 2650 break; 2651 case 0: 2652 ret = mwifiex_reinit_sw(adapter); 2653 if (ret) 2654 dev_err(&func->dev, "reinit failed: %d\n", ret); 2655 break; 2656 default: 2657 dev_err(&func->dev, "SDIO HW reset failed: %d\n", ret); 2658 break; 2659 } 2660} 2661 2662/* This function read/write firmware */ 2663static enum 2664rdwr_status mwifiex_sdio_rdwr_firmware(struct mwifiex_adapter *adapter, 2665 u8 doneflag) 2666{ 2667 struct sdio_mmc_card *card = adapter->card; 2668 int ret, tries; 2669 u8 ctrl_data = 0; 2670 2671 sdio_writeb(card->func, card->reg->fw_dump_host_ready, 2672 card->reg->fw_dump_ctrl, &ret); 2673 if (ret) { 2674 mwifiex_dbg(adapter, ERROR, "SDIO Write ERR\n"); 2675 return RDWR_STATUS_FAILURE; 2676 } 2677 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 2678 ctrl_data = sdio_readb(card->func, card->reg->fw_dump_ctrl, 2679 &ret); 2680 if (ret) { 2681 mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); 2682 return RDWR_STATUS_FAILURE; 2683 } 2684 if (ctrl_data == FW_DUMP_DONE) 2685 break; 2686 if (doneflag && ctrl_data == doneflag) 2687 return RDWR_STATUS_DONE; 2688 if (ctrl_data != card->reg->fw_dump_host_ready) { 2689 mwifiex_dbg(adapter, WARN, 2690 "The ctrl reg was changed, re-try again\n"); 2691 sdio_writeb(card->func, card->reg->fw_dump_host_ready, 2692 card->reg->fw_dump_ctrl, &ret); 2693 if (ret) { 2694 mwifiex_dbg(adapter, ERROR, "SDIO write err\n"); 2695 return RDWR_STATUS_FAILURE; 2696 } 2697 } 2698 usleep_range(100, 200); 2699 } 2700 if (ctrl_data == card->reg->fw_dump_host_ready) { 2701 mwifiex_dbg(adapter, ERROR, 2702 "Fail to pull ctrl_data\n"); 2703 return RDWR_STATUS_FAILURE; 2704 } 2705 2706 return RDWR_STATUS_SUCCESS; 2707} 2708 2709/* This function dump firmware memory to file */ 2710static void mwifiex_sdio_fw_dump(struct mwifiex_adapter *adapter) 2711{ 2712 struct sdio_mmc_card *card = adapter->card; 2713 int ret = 0; 2714 unsigned int reg, reg_start, reg_end; 2715 u8 *dbg_ptr, *end_ptr, dump_num, idx, i, read_reg, doneflag = 0; 2716 enum rdwr_status stat; 2717 u32 memory_size; 2718 2719 if (!card->can_dump_fw) 2720 return; 2721 2722 for (idx = 0; idx < ARRAY_SIZE(mem_type_mapping_tbl); idx++) { 2723 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 2724 2725 if (entry->mem_ptr) { 2726 vfree(entry->mem_ptr); 2727 entry->mem_ptr = NULL; 2728 } 2729 entry->mem_size = 0; 2730 } 2731 2732 mwifiex_pm_wakeup_card(adapter); 2733 sdio_claim_host(card->func); 2734 2735 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n"); 2736 2737 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2738 if (stat == RDWR_STATUS_FAILURE) 2739 goto done; 2740 2741 reg = card->reg->fw_dump_start; 2742 /* Read the number of the memories which will dump */ 2743 dump_num = sdio_readb(card->func, reg, &ret); 2744 if (ret) { 2745 mwifiex_dbg(adapter, ERROR, "SDIO read memory length err\n"); 2746 goto done; 2747 } 2748 2749 /* Read the length of every memory which will dump */ 2750 for (idx = 0; idx < dump_num; idx++) { 2751 struct memory_type_mapping *entry = &mem_type_mapping_tbl[idx]; 2752 2753 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2754 if (stat == RDWR_STATUS_FAILURE) 2755 goto done; 2756 2757 memory_size = 0; 2758 reg = card->reg->fw_dump_start; 2759 for (i = 0; i < 4; i++) { 2760 read_reg = sdio_readb(card->func, reg, &ret); 2761 if (ret) { 2762 mwifiex_dbg(adapter, ERROR, "SDIO read err\n"); 2763 goto done; 2764 } 2765 memory_size |= (read_reg << i*8); 2766 reg++; 2767 } 2768 2769 if (memory_size == 0) { 2770 mwifiex_dbg(adapter, DUMP, "Firmware dump Finished!\n"); 2771 ret = mwifiex_write_reg(adapter, 2772 card->reg->fw_dump_ctrl, 2773 FW_DUMP_READ_DONE); 2774 if (ret) { 2775 mwifiex_dbg(adapter, ERROR, "SDIO write err\n"); 2776 return; 2777 } 2778 break; 2779 } 2780 2781 mwifiex_dbg(adapter, DUMP, 2782 "%s_SIZE=0x%x\n", entry->mem_name, memory_size); 2783 entry->mem_ptr = vmalloc(memory_size + 1); 2784 entry->mem_size = memory_size; 2785 if (!entry->mem_ptr) { 2786 mwifiex_dbg(adapter, ERROR, "Vmalloc %s failed\n", 2787 entry->mem_name); 2788 goto done; 2789 } 2790 dbg_ptr = entry->mem_ptr; 2791 end_ptr = dbg_ptr + memory_size; 2792 2793 doneflag = entry->done_flag; 2794 mwifiex_dbg(adapter, DUMP, 2795 "Start %s output, please wait...\n", 2796 entry->mem_name); 2797 2798 do { 2799 stat = mwifiex_sdio_rdwr_firmware(adapter, doneflag); 2800 if (stat == RDWR_STATUS_FAILURE) 2801 goto done; 2802 2803 reg_start = card->reg->fw_dump_start; 2804 reg_end = card->reg->fw_dump_end; 2805 for (reg = reg_start; reg <= reg_end; reg++) { 2806 *dbg_ptr = sdio_readb(card->func, reg, &ret); 2807 if (ret) { 2808 mwifiex_dbg(adapter, ERROR, 2809 "SDIO read err\n"); 2810 goto done; 2811 } 2812 if (dbg_ptr < end_ptr) 2813 dbg_ptr++; 2814 else 2815 mwifiex_dbg(adapter, ERROR, 2816 "Allocated buf not enough\n"); 2817 } 2818 2819 if (stat != RDWR_STATUS_DONE) 2820 continue; 2821 2822 mwifiex_dbg(adapter, DUMP, "%s done: size=0x%tx\n", 2823 entry->mem_name, dbg_ptr - entry->mem_ptr); 2824 break; 2825 } while (1); 2826 } 2827 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n"); 2828 2829done: 2830 sdio_release_host(card->func); 2831} 2832 2833static void mwifiex_sdio_generic_fw_dump(struct mwifiex_adapter *adapter) 2834{ 2835 struct sdio_mmc_card *card = adapter->card; 2836 struct memory_type_mapping *entry = &generic_mem_type_map[0]; 2837 unsigned int reg, reg_start, reg_end; 2838 u8 start_flag = 0, done_flag = 0; 2839 u8 *dbg_ptr, *end_ptr; 2840 enum rdwr_status stat; 2841 int ret = -1, tries; 2842 2843 if (!card->fw_dump_enh) 2844 return; 2845 2846 if (entry->mem_ptr) { 2847 vfree(entry->mem_ptr); 2848 entry->mem_ptr = NULL; 2849 } 2850 entry->mem_size = 0; 2851 2852 mwifiex_pm_wakeup_card(adapter); 2853 sdio_claim_host(card->func); 2854 2855 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump start ==\n"); 2856 2857 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag); 2858 if (stat == RDWR_STATUS_FAILURE) 2859 goto done; 2860 2861 reg_start = card->reg->fw_dump_start; 2862 reg_end = card->reg->fw_dump_end; 2863 for (reg = reg_start; reg <= reg_end; reg++) { 2864 for (tries = 0; tries < MAX_POLL_TRIES; tries++) { 2865 start_flag = sdio_readb(card->func, reg, &ret); 2866 if (ret) { 2867 mwifiex_dbg(adapter, ERROR, 2868 "SDIO read err\n"); 2869 goto done; 2870 } 2871 if (start_flag == 0) 2872 break; 2873 if (tries == MAX_POLL_TRIES) { 2874 mwifiex_dbg(adapter, ERROR, 2875 "FW not ready to dump\n"); 2876 ret = -1; 2877 goto done; 2878 } 2879 } 2880 usleep_range(100, 200); 2881 } 2882 2883 entry->mem_ptr = vmalloc(0xf0000 + 1); 2884 if (!entry->mem_ptr) { 2885 ret = -1; 2886 goto done; 2887 } 2888 dbg_ptr = entry->mem_ptr; 2889 entry->mem_size = 0xf0000; 2890 end_ptr = dbg_ptr + entry->mem_size; 2891 2892 done_flag = entry->done_flag; 2893 mwifiex_dbg(adapter, DUMP, 2894 "Start %s output, please wait...\n", entry->mem_name); 2895 2896 while (true) { 2897 stat = mwifiex_sdio_rdwr_firmware(adapter, done_flag); 2898 if (stat == RDWR_STATUS_FAILURE) 2899 goto done; 2900 for (reg = reg_start; reg <= reg_end; reg++) { 2901 *dbg_ptr = sdio_readb(card->func, reg, &ret); 2902 if (ret) { 2903 mwifiex_dbg(adapter, ERROR, 2904 "SDIO read err\n"); 2905 goto done; 2906 } 2907 dbg_ptr++; 2908 if (dbg_ptr >= end_ptr) { 2909 u8 *tmp_ptr; 2910 2911 tmp_ptr = vmalloc(entry->mem_size + 0x4000 + 1); 2912 if (!tmp_ptr) 2913 goto done; 2914 2915 memcpy(tmp_ptr, entry->mem_ptr, 2916 entry->mem_size); 2917 vfree(entry->mem_ptr); 2918 entry->mem_ptr = tmp_ptr; 2919 tmp_ptr = NULL; 2920 dbg_ptr = entry->mem_ptr + entry->mem_size; 2921 entry->mem_size += 0x4000; 2922 end_ptr = entry->mem_ptr + entry->mem_size; 2923 } 2924 } 2925 if (stat == RDWR_STATUS_DONE) { 2926 entry->mem_size = dbg_ptr - entry->mem_ptr; 2927 mwifiex_dbg(adapter, DUMP, "dump %s done size=0x%x\n", 2928 entry->mem_name, entry->mem_size); 2929 ret = 0; 2930 break; 2931 } 2932 } 2933 mwifiex_dbg(adapter, MSG, "== mwifiex firmware dump end ==\n"); 2934 2935done: 2936 if (ret) { 2937 mwifiex_dbg(adapter, ERROR, "firmware dump failed\n"); 2938 if (entry->mem_ptr) { 2939 vfree(entry->mem_ptr); 2940 entry->mem_ptr = NULL; 2941 } 2942 entry->mem_size = 0; 2943 } 2944 sdio_release_host(card->func); 2945} 2946 2947static void mwifiex_sdio_device_dump_work(struct mwifiex_adapter *adapter) 2948{ 2949 struct sdio_mmc_card *card = adapter->card; 2950 2951 adapter->devdump_data = vzalloc(MWIFIEX_FW_DUMP_SIZE); 2952 if (!adapter->devdump_data) { 2953 mwifiex_dbg(adapter, ERROR, 2954 "vzalloc devdump data failure!\n"); 2955 return; 2956 } 2957 2958 mwifiex_drv_info_dump(adapter); 2959 if (card->fw_dump_enh) 2960 mwifiex_sdio_generic_fw_dump(adapter); 2961 else 2962 mwifiex_sdio_fw_dump(adapter); 2963 mwifiex_prepare_fw_dump_info(adapter); 2964 mwifiex_upload_device_dump(adapter); 2965} 2966 2967static void mwifiex_sdio_work(struct work_struct *work) 2968{ 2969 struct sdio_mmc_card *card = 2970 container_of(work, struct sdio_mmc_card, work); 2971 2972 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 2973 &card->work_flags)) 2974 mwifiex_sdio_device_dump_work(card->adapter); 2975 if (test_and_clear_bit(MWIFIEX_IFACE_WORK_CARD_RESET, 2976 &card->work_flags)) 2977 mwifiex_sdio_card_reset_work(card->adapter); 2978} 2979 2980/* This function resets the card */ 2981static void mwifiex_sdio_card_reset(struct mwifiex_adapter *adapter) 2982{ 2983 struct sdio_mmc_card *card = adapter->card; 2984 2985 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_CARD_RESET, &card->work_flags)) 2986 schedule_work(&card->work); 2987} 2988 2989/* This function dumps FW information */ 2990static void mwifiex_sdio_device_dump(struct mwifiex_adapter *adapter) 2991{ 2992 struct sdio_mmc_card *card = adapter->card; 2993 2994 if (!test_and_set_bit(MWIFIEX_IFACE_WORK_DEVICE_DUMP, 2995 &card->work_flags)) 2996 schedule_work(&card->work); 2997} 2998 2999/* Function to dump SDIO function registers and SDIO scratch registers in case 3000 * of FW crash 3001 */ 3002static int 3003mwifiex_sdio_reg_dump(struct mwifiex_adapter *adapter, char *drv_buf) 3004{ 3005 char *p = drv_buf; 3006 struct sdio_mmc_card *cardp = adapter->card; 3007 int ret = 0; 3008 u8 count, func, data, index = 0, size = 0; 3009 u8 reg, reg_start, reg_end; 3010 char buf[256], *ptr; 3011 3012 if (!p) 3013 return 0; 3014 3015 mwifiex_dbg(adapter, MSG, "SDIO register dump start\n"); 3016 3017 mwifiex_pm_wakeup_card(adapter); 3018 3019 sdio_claim_host(cardp->func); 3020 3021 for (count = 0; count < 5; count++) { 3022 memset(buf, 0, sizeof(buf)); 3023 ptr = buf; 3024 3025 switch (count) { 3026 case 0: 3027 /* Read the registers of SDIO function0 */ 3028 func = count; 3029 reg_start = 0; 3030 reg_end = 9; 3031 break; 3032 case 1: 3033 /* Read the registers of SDIO function1 */ 3034 func = count; 3035 reg_start = cardp->reg->func1_dump_reg_start; 3036 reg_end = cardp->reg->func1_dump_reg_end; 3037 break; 3038 case 2: 3039 index = 0; 3040 func = 1; 3041 reg_start = cardp->reg->func1_spec_reg_table[index++]; 3042 size = cardp->reg->func1_spec_reg_num; 3043 reg_end = cardp->reg->func1_spec_reg_table[size-1]; 3044 break; 3045 default: 3046 /* Read the scratch registers of SDIO function1 */ 3047 if (count == 4) 3048 mdelay(100); 3049 func = 1; 3050 reg_start = cardp->reg->func1_scratch_reg; 3051 reg_end = reg_start + MWIFIEX_SDIO_SCRATCH_SIZE; 3052 } 3053 3054 if (count != 2) 3055 ptr += sprintf(ptr, "SDIO Func%d (%#x-%#x): ", 3056 func, reg_start, reg_end); 3057 else 3058 ptr += sprintf(ptr, "SDIO Func%d: ", func); 3059 3060 for (reg = reg_start; reg <= reg_end;) { 3061 if (func == 0) 3062 data = sdio_f0_readb(cardp->func, reg, &ret); 3063 else 3064 data = sdio_readb(cardp->func, reg, &ret); 3065 3066 if (count == 2) 3067 ptr += sprintf(ptr, "(%#x) ", reg); 3068 if (!ret) { 3069 ptr += sprintf(ptr, "%02x ", data); 3070 } else { 3071 ptr += sprintf(ptr, "ERR"); 3072 break; 3073 } 3074 3075 if (count == 2 && reg < reg_end) 3076 reg = cardp->reg->func1_spec_reg_table[index++]; 3077 else 3078 reg++; 3079 } 3080 3081 mwifiex_dbg(adapter, MSG, "%s\n", buf); 3082 p += sprintf(p, "%s\n", buf); 3083 } 3084 3085 sdio_release_host(cardp->func); 3086 3087 mwifiex_dbg(adapter, MSG, "SDIO register dump end\n"); 3088 3089 return p - drv_buf; 3090} 3091 3092/* sdio device/function initialization, code is extracted 3093 * from init_if handler and register_dev handler. 3094 */ 3095static void mwifiex_sdio_up_dev(struct mwifiex_adapter *adapter) 3096{ 3097 struct sdio_mmc_card *card = adapter->card; 3098 u8 sdio_ireg; 3099 3100 sdio_claim_host(card->func); 3101 sdio_enable_func(card->func); 3102 sdio_set_block_size(card->func, MWIFIEX_SDIO_BLOCK_SIZE); 3103 sdio_release_host(card->func); 3104 3105 /* tx_buf_size might be changed to 3584 by firmware during 3106 * data transfer, we will reset to default size. 3107 */ 3108 adapter->tx_buf_size = card->tx_buf_size; 3109 3110 /* Read the host_int_status_reg for ACK the first interrupt got 3111 * from the bootloader. If we don't do this we get a interrupt 3112 * as soon as we register the irq. 3113 */ 3114 mwifiex_read_reg(adapter, card->reg->host_int_status_reg, &sdio_ireg); 3115 3116 mwifiex_init_sdio_ioport(adapter); 3117} 3118 3119static struct mwifiex_if_ops sdio_ops = { 3120 .init_if = mwifiex_init_sdio, 3121 .cleanup_if = mwifiex_cleanup_sdio, 3122 .check_fw_status = mwifiex_check_fw_status, 3123 .check_winner_status = mwifiex_check_winner_status, 3124 .prog_fw = mwifiex_prog_fw_w_helper, 3125 .register_dev = mwifiex_register_dev, 3126 .unregister_dev = mwifiex_unregister_dev, 3127 .enable_int = mwifiex_sdio_enable_host_int, 3128 .disable_int = mwifiex_sdio_disable_host_int, 3129 .process_int_status = mwifiex_process_int_status, 3130 .host_to_card = mwifiex_sdio_host_to_card, 3131 .wakeup = mwifiex_pm_wakeup_card, 3132 .wakeup_complete = mwifiex_pm_wakeup_card_complete, 3133 3134 /* SDIO specific */ 3135 .update_mp_end_port = mwifiex_update_mp_end_port, 3136 .cleanup_mpa_buf = mwifiex_cleanup_mpa_buf, 3137 .cmdrsp_complete = mwifiex_sdio_cmdrsp_complete, 3138 .event_complete = mwifiex_sdio_event_complete, 3139 .dnld_fw = mwifiex_sdio_dnld_fw, 3140 .card_reset = mwifiex_sdio_card_reset, 3141 .reg_dump = mwifiex_sdio_reg_dump, 3142 .device_dump = mwifiex_sdio_device_dump, 3143 .deaggr_pkt = mwifiex_deaggr_sdio_pkt, 3144 .up_dev = mwifiex_sdio_up_dev, 3145}; 3146 3147module_driver(mwifiex_sdio, sdio_register_driver, sdio_unregister_driver); 3148 3149MODULE_AUTHOR("Marvell International Ltd."); 3150MODULE_DESCRIPTION("Marvell WiFi-Ex SDIO Driver version " SDIO_VERSION); 3151MODULE_VERSION(SDIO_VERSION); 3152MODULE_LICENSE("GPL v2"); 3153MODULE_FIRMWARE(SD8786_DEFAULT_FW_NAME); 3154MODULE_FIRMWARE(SD8787_DEFAULT_FW_NAME); 3155MODULE_FIRMWARE(SD8797_DEFAULT_FW_NAME); 3156MODULE_FIRMWARE(SD8897_DEFAULT_FW_NAME); 3157MODULE_FIRMWARE(SD8887_DEFAULT_FW_NAME); 3158MODULE_FIRMWARE(SD8977_DEFAULT_FW_NAME); 3159MODULE_FIRMWARE(SD8987_DEFAULT_FW_NAME); 3160MODULE_FIRMWARE(SD8997_DEFAULT_FW_NAME); 3161