1 /* 2 * Copyright (c) 2015-2018 The Linux Foundation. All rights reserved. 3 * 4 * Previously licensed under the ISC license by Qualcomm Atheros, Inc. 5 * 6 * 7 * Permission to use, copy, modify, and/or distribute this software for 8 * any purpose with or without fee is hereby granted, provided that the 9 * above copyright notice and this permission notice appear in all 10 * copies. 11 * 12 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL 13 * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED 14 * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE 15 * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 16 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 17 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 18 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 19 * PERFORMANCE OF THIS SOFTWARE. 20 */ 21 22 /* 23 * This file was originally distributed by Qualcomm Atheros, Inc. 24 * under proprietary terms before Copyright ownership was assigned 25 * to the Linux Foundation. 26 */ 27 28 /* 29 * Host WMI unified implementation 30 */ 31 #include "htc_api.h" 32 #include "htc_api.h" 33 #include "wmi_unified_priv.h" 34 #include "qdf_module.h" 35 36 #ifndef WMI_NON_TLV_SUPPORT 37 #include "wmi_tlv_helper.h" 38 #endif 39 40 #include <linux/debugfs.h> 41 42 /* This check for CONFIG_WIN temporary added due to redeclaration compilation 43 error in MCL. Error is caused due to inclusion of wmi.h in wmi_unified_api.h 44 which gets included here through ol_if_athvar.h. Eventually it is expected that 45 wmi.h will be removed from wmi_unified_api.h after cleanup, which will need 46 WMI_CMD_HDR to be defined here. */ 47 #ifdef CONFIG_WIN 48 /* Copied from wmi.h */ 49 #undef MS 50 #define MS(_v, _f) (((_v) & _f##_MASK) >> _f##_LSB) 51 #undef SM 52 #define SM(_v, _f) (((_v) << _f##_LSB) & _f##_MASK) 53 #undef WO 54 #define WO(_f) ((_f##_OFFSET) >> 2) 55 56 #undef GET_FIELD 57 #define GET_FIELD(_addr, _f) MS(*((uint32_t *)(_addr) + WO(_f)), _f) 58 #undef SET_FIELD 59 #define SET_FIELD(_addr, _f, _val) \ 60 (*((uint32_t *)(_addr) + WO(_f)) = \ 61 (*((uint32_t *)(_addr) + WO(_f)) & ~_f##_MASK) | SM(_val, _f)) 62 63 #define WMI_GET_FIELD(_msg_buf, _msg_type, _f) \ 64 GET_FIELD(_msg_buf, _msg_type ## _ ## _f) 65 66 #define WMI_SET_FIELD(_msg_buf, _msg_type, _f, _val) \ 67 SET_FIELD(_msg_buf, _msg_type ## _ ## _f, _val) 68 69 #define WMI_EP_APASS 0x0 70 #define WMI_EP_LPASS 0x1 71 #define WMI_EP_SENSOR 0x2 72 73 /* 74 * * Control Path 75 * */ 76 typedef PREPACK struct { 77 uint32_t commandId:24, 78 reserved:2, /* used for WMI endpoint ID */ 79 plt_priv:6; /* platform private */ 80 } POSTPACK WMI_CMD_HDR; /* used for commands and events */ 81 82 #define WMI_CMD_HDR_COMMANDID_LSB 0 83 #define WMI_CMD_HDR_COMMANDID_MASK 0x00ffffff 84 #define WMI_CMD_HDR_COMMANDID_OFFSET 0x00000000 85 #define WMI_CMD_HDR_WMI_ENDPOINTID_MASK 0x03000000 86 #define WMI_CMD_HDR_WMI_ENDPOINTID_OFFSET 24 87 #define WMI_CMD_HDR_PLT_PRIV_LSB 24 88 #define WMI_CMD_HDR_PLT_PRIV_MASK 0xff000000 89 #define WMI_CMD_HDR_PLT_PRIV_OFFSET 0x00000000 90 /* end of copy wmi.h */ 91 #endif /* CONFIG_WIN */ 92 93 #define WMI_MIN_HEAD_ROOM 64 94 95 #ifdef WMI_INTERFACE_EVENT_LOGGING 96 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 3, 0)) 97 /* TODO Cleanup this backported function */ 98 static int wmi_bp_seq_printf(struct seq_file *m, const char *f, ...) 99 { 100 va_list args; 101 102 va_start(args, f); 103 seq_vprintf(m, f, args); 104 va_end(args); 105 106 return 0; 107 } 108 #else 109 #define wmi_bp_seq_printf(m, fmt, ...) seq_printf((m), fmt, ##__VA_ARGS__) 110 #endif 111 112 #ifndef MAX_WMI_INSTANCES 113 #ifdef CONFIG_MCL 114 #define MAX_WMI_INSTANCES 1 115 #else 116 #define MAX_WMI_INSTANCES 3 117 #endif 118 #define CUSTOM_MGMT_CMD_DATA_SIZE 4 119 #endif 120 121 #ifdef CONFIG_MCL 122 /* WMI commands */ 123 uint32_t g_wmi_command_buf_idx = 0; 124 struct wmi_command_debug wmi_command_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY]; 125 126 /* WMI commands TX completed */ 127 uint32_t g_wmi_command_tx_cmp_buf_idx = 0; 128 struct wmi_command_debug 129 wmi_command_tx_cmp_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY]; 130 131 /* WMI events when processed */ 132 uint32_t g_wmi_event_buf_idx = 0; 133 struct wmi_event_debug wmi_event_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY]; 134 135 /* WMI events when queued */ 136 uint32_t g_wmi_rx_event_buf_idx = 0; 137 struct wmi_event_debug wmi_rx_event_log_buffer[WMI_EVENT_DEBUG_MAX_ENTRY]; 138 #endif 139 140 #define WMI_COMMAND_RECORD(h, a, b) { \ 141 if (wmi_log_max_entry <= \ 142 *(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)) \ 143 *(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx) = 0;\ 144 ((struct wmi_command_debug *)h->log_info.wmi_command_log_buf_info.buf)\ 145 [*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)]\ 146 .command = a; \ 147 qdf_mem_copy(((struct wmi_command_debug *)h->log_info. \ 148 wmi_command_log_buf_info.buf) \ 149 [*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)].data,\ 150 b, wmi_record_max_length); \ 151 ((struct wmi_command_debug *)h->log_info.wmi_command_log_buf_info.buf)\ 152 [*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx)].\ 153 time = qdf_get_log_timestamp(); \ 154 (*(h->log_info.wmi_command_log_buf_info.p_buf_tail_idx))++; \ 155 h->log_info.wmi_command_log_buf_info.length++; \ 156 } 157 158 #define WMI_COMMAND_TX_CMP_RECORD(h, a, b) { \ 159 if (wmi_log_max_entry <= \ 160 *(h->log_info.wmi_command_tx_cmp_log_buf_info.p_buf_tail_idx))\ 161 *(h->log_info.wmi_command_tx_cmp_log_buf_info. \ 162 p_buf_tail_idx) = 0; \ 163 ((struct wmi_command_debug *)h->log_info. \ 164 wmi_command_tx_cmp_log_buf_info.buf) \ 165 [*(h->log_info.wmi_command_tx_cmp_log_buf_info. \ 166 p_buf_tail_idx)]. \ 167 command = a; \ 168 qdf_mem_copy(((struct wmi_command_debug *)h->log_info. \ 169 wmi_command_tx_cmp_log_buf_info.buf) \ 170 [*(h->log_info.wmi_command_tx_cmp_log_buf_info. \ 171 p_buf_tail_idx)]. \ 172 data, b, wmi_record_max_length); \ 173 ((struct wmi_command_debug *)h->log_info. \ 174 wmi_command_tx_cmp_log_buf_info.buf) \ 175 [*(h->log_info.wmi_command_tx_cmp_log_buf_info. \ 176 p_buf_tail_idx)]. \ 177 time = qdf_get_log_timestamp(); \ 178 (*(h->log_info.wmi_command_tx_cmp_log_buf_info.p_buf_tail_idx))++;\ 179 h->log_info.wmi_command_tx_cmp_log_buf_info.length++; \ 180 } 181 182 #define WMI_EVENT_RECORD(h, a, b) { \ 183 if (wmi_log_max_entry <= \ 184 *(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)) \ 185 *(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx) = 0;\ 186 ((struct wmi_event_debug *)h->log_info.wmi_event_log_buf_info.buf)\ 187 [*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)]. \ 188 event = a; \ 189 qdf_mem_copy(((struct wmi_event_debug *)h->log_info. \ 190 wmi_event_log_buf_info.buf) \ 191 [*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)].data, b,\ 192 wmi_record_max_length); \ 193 ((struct wmi_event_debug *)h->log_info.wmi_event_log_buf_info.buf)\ 194 [*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx)].time =\ 195 qdf_get_log_timestamp(); \ 196 (*(h->log_info.wmi_event_log_buf_info.p_buf_tail_idx))++; \ 197 h->log_info.wmi_event_log_buf_info.length++; \ 198 } 199 200 #define WMI_RX_EVENT_RECORD(h, a, b) { \ 201 if (wmi_log_max_entry <= \ 202 *(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx))\ 203 *(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx) = 0;\ 204 ((struct wmi_event_debug *)h->log_info.wmi_rx_event_log_buf_info.buf)\ 205 [*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\ 206 event = a; \ 207 qdf_mem_copy(((struct wmi_event_debug *)h->log_info. \ 208 wmi_rx_event_log_buf_info.buf) \ 209 [*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\ 210 data, b, wmi_record_max_length); \ 211 ((struct wmi_event_debug *)h->log_info.wmi_rx_event_log_buf_info.buf)\ 212 [*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx)].\ 213 time = qdf_get_log_timestamp(); \ 214 (*(h->log_info.wmi_rx_event_log_buf_info.p_buf_tail_idx))++; \ 215 h->log_info.wmi_rx_event_log_buf_info.length++; \ 216 } 217 218 #ifdef CONFIG_MCL 219 uint32_t g_wmi_mgmt_command_buf_idx = 0; 220 struct 221 wmi_command_debug wmi_mgmt_command_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY]; 222 223 /* wmi_mgmt commands TX completed */ 224 uint32_t g_wmi_mgmt_command_tx_cmp_buf_idx = 0; 225 struct wmi_command_debug 226 wmi_mgmt_command_tx_cmp_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY]; 227 228 /* wmi_mgmt events when processed */ 229 uint32_t g_wmi_mgmt_event_buf_idx = 0; 230 struct wmi_event_debug 231 wmi_mgmt_event_log_buffer[WMI_MGMT_EVENT_DEBUG_MAX_ENTRY]; 232 #endif 233 234 #define WMI_MGMT_COMMAND_RECORD(h, a, b) { \ 235 if (wmi_mgmt_log_max_entry <= \ 236 *(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)) \ 237 *(h->log_info.wmi_mgmt_command_log_buf_info. \ 238 p_buf_tail_idx) = 0; \ 239 ((struct wmi_command_debug *)h->log_info. \ 240 wmi_mgmt_command_log_buf_info.buf) \ 241 [*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\ 242 command = a; \ 243 qdf_mem_copy(((struct wmi_command_debug *)h->log_info. \ 244 wmi_mgmt_command_log_buf_info.buf) \ 245 [*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\ 246 data, b, \ 247 wmi_record_max_length); \ 248 ((struct wmi_command_debug *)h->log_info. \ 249 wmi_mgmt_command_log_buf_info.buf) \ 250 [*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx)].\ 251 time = qdf_get_log_timestamp(); \ 252 (*(h->log_info.wmi_mgmt_command_log_buf_info.p_buf_tail_idx))++;\ 253 h->log_info.wmi_mgmt_command_log_buf_info.length++; \ 254 } 255 256 #define WMI_MGMT_COMMAND_TX_CMP_RECORD(h, a, b) { \ 257 if (wmi_mgmt_log_max_entry <= \ 258 *(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 259 p_buf_tail_idx)) \ 260 *(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 261 p_buf_tail_idx) = 0; \ 262 ((struct wmi_command_debug *)h->log_info. \ 263 wmi_mgmt_command_tx_cmp_log_buf_info.buf) \ 264 [*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 265 p_buf_tail_idx)].command = a; \ 266 qdf_mem_copy(((struct wmi_command_debug *)h->log_info. \ 267 wmi_mgmt_command_tx_cmp_log_buf_info.buf)\ 268 [*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 269 p_buf_tail_idx)].data, b, \ 270 wmi_record_max_length); \ 271 ((struct wmi_command_debug *)h->log_info. \ 272 wmi_mgmt_command_tx_cmp_log_buf_info.buf) \ 273 [*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 274 p_buf_tail_idx)].time = \ 275 qdf_get_log_timestamp(); \ 276 (*(h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info. \ 277 p_buf_tail_idx))++; \ 278 h->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.length++; \ 279 } 280 281 #define WMI_MGMT_EVENT_RECORD(h, a, b) { \ 282 if (wmi_mgmt_log_max_entry <= \ 283 *(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx))\ 284 *(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx) = 0;\ 285 ((struct wmi_event_debug *)h->log_info.wmi_mgmt_event_log_buf_info.buf)\ 286 [*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)]\ 287 .event = a; \ 288 qdf_mem_copy(((struct wmi_event_debug *)h->log_info. \ 289 wmi_mgmt_event_log_buf_info.buf) \ 290 [*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)].\ 291 data, b, wmi_record_max_length); \ 292 ((struct wmi_event_debug *)h->log_info.wmi_mgmt_event_log_buf_info.buf)\ 293 [*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx)].\ 294 time = qdf_get_log_timestamp(); \ 295 (*(h->log_info.wmi_mgmt_event_log_buf_info.p_buf_tail_idx))++; \ 296 h->log_info.wmi_mgmt_event_log_buf_info.length++; \ 297 } 298 299 /* These are defined to made it as module param, which can be configured */ 300 uint32_t wmi_log_max_entry = WMI_EVENT_DEBUG_MAX_ENTRY; 301 uint32_t wmi_mgmt_log_max_entry = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY; 302 uint32_t wmi_record_max_length = WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH; 303 uint32_t wmi_display_size = 100; 304 305 /** 306 * wmi_log_init() - Initialize WMI event logging 307 * @wmi_handle: WMI handle. 308 * 309 * Return: Initialization status 310 */ 311 #ifdef CONFIG_MCL 312 static QDF_STATUS wmi_log_init(struct wmi_unified *wmi_handle) 313 { 314 struct wmi_log_buf_t *cmd_log_buf = 315 &wmi_handle->log_info.wmi_command_log_buf_info; 316 struct wmi_log_buf_t *cmd_tx_cmpl_log_buf = 317 &wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info; 318 319 struct wmi_log_buf_t *event_log_buf = 320 &wmi_handle->log_info.wmi_event_log_buf_info; 321 struct wmi_log_buf_t *rx_event_log_buf = 322 &wmi_handle->log_info.wmi_rx_event_log_buf_info; 323 324 struct wmi_log_buf_t *mgmt_cmd_log_buf = 325 &wmi_handle->log_info.wmi_mgmt_command_log_buf_info; 326 struct wmi_log_buf_t *mgmt_cmd_tx_cmp_log_buf = 327 &wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info; 328 struct wmi_log_buf_t *mgmt_event_log_buf = 329 &wmi_handle->log_info.wmi_mgmt_event_log_buf_info; 330 331 /* WMI commands */ 332 cmd_log_buf->length = 0; 333 cmd_log_buf->buf_tail_idx = 0; 334 cmd_log_buf->buf = wmi_command_log_buffer; 335 cmd_log_buf->p_buf_tail_idx = &g_wmi_command_buf_idx; 336 cmd_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY; 337 338 /* WMI commands TX completed */ 339 cmd_tx_cmpl_log_buf->length = 0; 340 cmd_tx_cmpl_log_buf->buf_tail_idx = 0; 341 cmd_tx_cmpl_log_buf->buf = wmi_command_tx_cmp_log_buffer; 342 cmd_tx_cmpl_log_buf->p_buf_tail_idx = &g_wmi_command_tx_cmp_buf_idx; 343 cmd_tx_cmpl_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY; 344 345 /* WMI events when processed */ 346 event_log_buf->length = 0; 347 event_log_buf->buf_tail_idx = 0; 348 event_log_buf->buf = wmi_event_log_buffer; 349 event_log_buf->p_buf_tail_idx = &g_wmi_event_buf_idx; 350 event_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY; 351 352 /* WMI events when queued */ 353 rx_event_log_buf->length = 0; 354 rx_event_log_buf->buf_tail_idx = 0; 355 rx_event_log_buf->buf = wmi_rx_event_log_buffer; 356 rx_event_log_buf->p_buf_tail_idx = &g_wmi_rx_event_buf_idx; 357 rx_event_log_buf->size = WMI_EVENT_DEBUG_MAX_ENTRY; 358 359 /* WMI Management commands */ 360 mgmt_cmd_log_buf->length = 0; 361 mgmt_cmd_log_buf->buf_tail_idx = 0; 362 mgmt_cmd_log_buf->buf = wmi_mgmt_command_log_buffer; 363 mgmt_cmd_log_buf->p_buf_tail_idx = &g_wmi_mgmt_command_buf_idx; 364 mgmt_cmd_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY; 365 366 /* WMI Management commands Tx completed*/ 367 mgmt_cmd_tx_cmp_log_buf->length = 0; 368 mgmt_cmd_tx_cmp_log_buf->buf_tail_idx = 0; 369 mgmt_cmd_tx_cmp_log_buf->buf = wmi_mgmt_command_tx_cmp_log_buffer; 370 mgmt_cmd_tx_cmp_log_buf->p_buf_tail_idx = 371 &g_wmi_mgmt_command_tx_cmp_buf_idx; 372 mgmt_cmd_tx_cmp_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY; 373 374 /* WMI Management events when processed*/ 375 mgmt_event_log_buf->length = 0; 376 mgmt_event_log_buf->buf_tail_idx = 0; 377 mgmt_event_log_buf->buf = wmi_mgmt_event_log_buffer; 378 mgmt_event_log_buf->p_buf_tail_idx = &g_wmi_mgmt_event_buf_idx; 379 mgmt_event_log_buf->size = WMI_MGMT_EVENT_DEBUG_MAX_ENTRY; 380 381 qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock); 382 wmi_handle->log_info.wmi_logging_enable = 1; 383 384 return QDF_STATUS_SUCCESS; 385 } 386 #else 387 static QDF_STATUS wmi_log_init(struct wmi_unified *wmi_handle) 388 { 389 struct wmi_log_buf_t *cmd_log_buf = 390 &wmi_handle->log_info.wmi_command_log_buf_info; 391 struct wmi_log_buf_t *cmd_tx_cmpl_log_buf = 392 &wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info; 393 394 struct wmi_log_buf_t *event_log_buf = 395 &wmi_handle->log_info.wmi_event_log_buf_info; 396 struct wmi_log_buf_t *rx_event_log_buf = 397 &wmi_handle->log_info.wmi_rx_event_log_buf_info; 398 399 struct wmi_log_buf_t *mgmt_cmd_log_buf = 400 &wmi_handle->log_info.wmi_mgmt_command_log_buf_info; 401 struct wmi_log_buf_t *mgmt_cmd_tx_cmp_log_buf = 402 &wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info; 403 struct wmi_log_buf_t *mgmt_event_log_buf = 404 &wmi_handle->log_info.wmi_mgmt_event_log_buf_info; 405 406 wmi_handle->log_info.wmi_logging_enable = 0; 407 408 /* WMI commands */ 409 cmd_log_buf->length = 0; 410 cmd_log_buf->buf_tail_idx = 0; 411 cmd_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc( 412 wmi_log_max_entry * sizeof(struct wmi_command_debug)); 413 cmd_log_buf->size = wmi_log_max_entry; 414 415 if (!cmd_log_buf->buf) { 416 qdf_print("no memory for WMI command log buffer..\n"); 417 return QDF_STATUS_E_NOMEM; 418 } 419 cmd_log_buf->p_buf_tail_idx = &cmd_log_buf->buf_tail_idx; 420 421 /* WMI commands TX completed */ 422 cmd_tx_cmpl_log_buf->length = 0; 423 cmd_tx_cmpl_log_buf->buf_tail_idx = 0; 424 cmd_tx_cmpl_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc( 425 wmi_log_max_entry * sizeof(struct wmi_command_debug)); 426 cmd_tx_cmpl_log_buf->size = wmi_log_max_entry; 427 428 if (!cmd_tx_cmpl_log_buf->buf) { 429 qdf_print("no memory for WMI Command Tx Complete log buffer..\n"); 430 return QDF_STATUS_E_NOMEM; 431 } 432 cmd_tx_cmpl_log_buf->p_buf_tail_idx = 433 &cmd_tx_cmpl_log_buf->buf_tail_idx; 434 435 /* WMI events when processed */ 436 event_log_buf->length = 0; 437 event_log_buf->buf_tail_idx = 0; 438 event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc( 439 wmi_log_max_entry * sizeof(struct wmi_event_debug)); 440 event_log_buf->size = wmi_log_max_entry; 441 442 if (!event_log_buf->buf) { 443 qdf_print("no memory for WMI Event log buffer..\n"); 444 return QDF_STATUS_E_NOMEM; 445 } 446 event_log_buf->p_buf_tail_idx = &event_log_buf->buf_tail_idx; 447 448 /* WMI events when queued */ 449 rx_event_log_buf->length = 0; 450 rx_event_log_buf->buf_tail_idx = 0; 451 rx_event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc( 452 wmi_log_max_entry * sizeof(struct wmi_event_debug)); 453 rx_event_log_buf->size = wmi_log_max_entry; 454 455 if (!rx_event_log_buf->buf) { 456 qdf_print("no memory for WMI Event Rx log buffer..\n"); 457 return QDF_STATUS_E_NOMEM; 458 } 459 rx_event_log_buf->p_buf_tail_idx = &rx_event_log_buf->buf_tail_idx; 460 461 /* WMI Management commands */ 462 mgmt_cmd_log_buf->length = 0; 463 mgmt_cmd_log_buf->buf_tail_idx = 0; 464 mgmt_cmd_log_buf->buf = (struct wmi_command_debug *) qdf_mem_malloc( 465 wmi_mgmt_log_max_entry * sizeof(struct wmi_command_debug)); 466 mgmt_cmd_log_buf->size = wmi_mgmt_log_max_entry; 467 468 if (!mgmt_cmd_log_buf->buf) { 469 qdf_print("no memory for WMI Management Command log buffer..\n"); 470 return QDF_STATUS_E_NOMEM; 471 } 472 mgmt_cmd_log_buf->p_buf_tail_idx = &mgmt_cmd_log_buf->buf_tail_idx; 473 474 /* WMI Management commands Tx completed*/ 475 mgmt_cmd_tx_cmp_log_buf->length = 0; 476 mgmt_cmd_tx_cmp_log_buf->buf_tail_idx = 0; 477 mgmt_cmd_tx_cmp_log_buf->buf = (struct wmi_command_debug *) 478 qdf_mem_malloc( 479 wmi_mgmt_log_max_entry * 480 sizeof(struct wmi_command_debug)); 481 mgmt_cmd_tx_cmp_log_buf->size = wmi_mgmt_log_max_entry; 482 483 if (!mgmt_cmd_tx_cmp_log_buf->buf) { 484 qdf_print("no memory for WMI Management Command Tx complete log buffer..\n"); 485 return QDF_STATUS_E_NOMEM; 486 } 487 mgmt_cmd_tx_cmp_log_buf->p_buf_tail_idx = 488 &mgmt_cmd_tx_cmp_log_buf->buf_tail_idx; 489 490 /* WMI Management events when processed*/ 491 mgmt_event_log_buf->length = 0; 492 mgmt_event_log_buf->buf_tail_idx = 0; 493 494 mgmt_event_log_buf->buf = (struct wmi_event_debug *) qdf_mem_malloc( 495 wmi_mgmt_log_max_entry * 496 sizeof(struct wmi_event_debug)); 497 mgmt_event_log_buf->size = wmi_mgmt_log_max_entry; 498 499 if (!mgmt_event_log_buf->buf) { 500 qdf_print("no memory for WMI Management Event log buffer..\n"); 501 return QDF_STATUS_E_NOMEM; 502 } 503 mgmt_event_log_buf->p_buf_tail_idx = &mgmt_event_log_buf->buf_tail_idx; 504 505 qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock); 506 wmi_handle->log_info.wmi_logging_enable = 1; 507 508 return QDF_STATUS_SUCCESS; 509 } 510 #endif 511 512 /** 513 * wmi_log_buffer_free() - Free all dynamic allocated buffer memory for 514 * event logging 515 * @wmi_handle: WMI handle. 516 * 517 * Return: None 518 */ 519 #ifndef CONFIG_MCL 520 static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle) 521 { 522 if (wmi_handle->log_info.wmi_command_log_buf_info.buf) 523 qdf_mem_free(wmi_handle->log_info.wmi_command_log_buf_info.buf); 524 if (wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info.buf) 525 qdf_mem_free( 526 wmi_handle->log_info.wmi_command_tx_cmp_log_buf_info.buf); 527 if (wmi_handle->log_info.wmi_event_log_buf_info.buf) 528 qdf_mem_free(wmi_handle->log_info.wmi_event_log_buf_info.buf); 529 if (wmi_handle->log_info.wmi_rx_event_log_buf_info.buf) 530 qdf_mem_free( 531 wmi_handle->log_info.wmi_rx_event_log_buf_info.buf); 532 if (wmi_handle->log_info.wmi_mgmt_command_log_buf_info.buf) 533 qdf_mem_free( 534 wmi_handle->log_info.wmi_mgmt_command_log_buf_info.buf); 535 if (wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.buf) 536 qdf_mem_free( 537 wmi_handle->log_info.wmi_mgmt_command_tx_cmp_log_buf_info.buf); 538 if (wmi_handle->log_info.wmi_mgmt_event_log_buf_info.buf) 539 qdf_mem_free( 540 wmi_handle->log_info.wmi_mgmt_event_log_buf_info.buf); 541 wmi_handle->log_info.wmi_logging_enable = 0; 542 qdf_spinlock_destroy(&wmi_handle->log_info.wmi_record_lock); 543 } 544 #else 545 static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle) 546 { 547 /* Do Nothing */ 548 } 549 #endif 550 551 /** 552 * wmi_print_cmd_log_buffer() - an output agnostic wmi command log printer 553 * @log_buffer: the command log buffer metadata of the buffer to print 554 * @count: the maximum number of entries to print 555 * @print: an abstract print method, e.g. a qdf_print() or seq_printf() wrapper 556 * @print_priv: any data required by the print method, e.g. a file handle 557 * 558 * Return: None 559 */ 560 static void 561 wmi_print_cmd_log_buffer(struct wmi_log_buf_t *log_buffer, uint32_t count, 562 qdf_abstract_print *print, void *print_priv) 563 { 564 static const int data_len = 565 WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH / sizeof(uint32_t); 566 char str[128]; 567 uint32_t idx; 568 569 if (count > log_buffer->size) 570 count = log_buffer->size; 571 if (count > log_buffer->length) 572 count = log_buffer->length; 573 574 /* subtract count from index, and wrap if necessary */ 575 idx = log_buffer->size + *log_buffer->p_buf_tail_idx - count; 576 idx %= log_buffer->size; 577 578 print(print_priv, "Time (seconds) Cmd Id Payload"); 579 while (count) { 580 struct wmi_command_debug *cmd_log = (struct wmi_command_debug *) 581 &((struct wmi_command_debug *)log_buffer->buf)[idx]; 582 uint64_t secs, usecs; 583 int len = 0; 584 int i; 585 586 qdf_log_timestamp_to_secs(cmd_log->time, &secs, &usecs); 587 len += scnprintf(str + len, sizeof(str) - len, 588 "% 8lld.%06lld %6u (0x%06x) ", 589 secs, usecs, 590 cmd_log->command, cmd_log->command); 591 for (i = 0; i < data_len; ++i) { 592 len += scnprintf(str + len, sizeof(str) - len, 593 "0x%08x ", cmd_log->data[i]); 594 } 595 596 print(print_priv, str); 597 598 --count; 599 ++idx; 600 if (idx >= log_buffer->size) 601 idx = 0; 602 } 603 } 604 605 /** 606 * wmi_print_event_log_buffer() - an output agnostic wmi event log printer 607 * @log_buffer: the event log buffer metadata of the buffer to print 608 * @count: the maximum number of entries to print 609 * @print: an abstract print method, e.g. a qdf_print() or seq_printf() wrapper 610 * @print_priv: any data required by the print method, e.g. a file handle 611 * 612 * Return: None 613 */ 614 static void 615 wmi_print_event_log_buffer(struct wmi_log_buf_t *log_buffer, uint32_t count, 616 qdf_abstract_print *print, void *print_priv) 617 { 618 static const int data_len = 619 WMI_EVENT_DEBUG_ENTRY_MAX_LENGTH / sizeof(uint32_t); 620 char str[128]; 621 uint32_t idx; 622 623 if (count > log_buffer->size) 624 count = log_buffer->size; 625 if (count > log_buffer->length) 626 count = log_buffer->length; 627 628 /* subtract count from index, and wrap if necessary */ 629 idx = log_buffer->size + *log_buffer->p_buf_tail_idx - count; 630 idx %= log_buffer->size; 631 632 print(print_priv, "Time (seconds) Event Id Payload"); 633 while (count) { 634 struct wmi_event_debug *event_log = (struct wmi_event_debug *) 635 &((struct wmi_event_debug *)log_buffer->buf)[idx]; 636 uint64_t secs, usecs; 637 int len = 0; 638 int i; 639 640 qdf_log_timestamp_to_secs(event_log->time, &secs, &usecs); 641 len += scnprintf(str + len, sizeof(str) - len, 642 "% 8lld.%06lld %6u (0x%06x) ", 643 secs, usecs, 644 event_log->event, event_log->event); 645 for (i = 0; i < data_len; ++i) { 646 len += scnprintf(str + len, sizeof(str) - len, 647 "0x%08x ", event_log->data[i]); 648 } 649 650 print(print_priv, str); 651 652 --count; 653 ++idx; 654 if (idx >= log_buffer->size) 655 idx = 0; 656 } 657 } 658 659 inline void 660 wmi_print_cmd_log(wmi_unified_t wmi, uint32_t count, 661 qdf_abstract_print *print, void *print_priv) 662 { 663 wmi_print_cmd_log_buffer( 664 &wmi->log_info.wmi_command_log_buf_info, 665 count, print, print_priv); 666 } 667 668 inline void 669 wmi_print_cmd_tx_cmp_log(wmi_unified_t wmi, uint32_t count, 670 qdf_abstract_print *print, void *print_priv) 671 { 672 wmi_print_cmd_log_buffer( 673 &wmi->log_info.wmi_command_tx_cmp_log_buf_info, 674 count, print, print_priv); 675 } 676 677 inline void 678 wmi_print_mgmt_cmd_log(wmi_unified_t wmi, uint32_t count, 679 qdf_abstract_print *print, void *print_priv) 680 { 681 wmi_print_cmd_log_buffer( 682 &wmi->log_info.wmi_mgmt_command_log_buf_info, 683 count, print, print_priv); 684 } 685 686 inline void 687 wmi_print_mgmt_cmd_tx_cmp_log(wmi_unified_t wmi, uint32_t count, 688 qdf_abstract_print *print, void *print_priv) 689 { 690 wmi_print_cmd_log_buffer( 691 &wmi->log_info.wmi_mgmt_command_tx_cmp_log_buf_info, 692 count, print, print_priv); 693 } 694 695 inline void 696 wmi_print_event_log(wmi_unified_t wmi, uint32_t count, 697 qdf_abstract_print *print, void *print_priv) 698 { 699 wmi_print_event_log_buffer( 700 &wmi->log_info.wmi_event_log_buf_info, 701 count, print, print_priv); 702 } 703 704 inline void 705 wmi_print_rx_event_log(wmi_unified_t wmi, uint32_t count, 706 qdf_abstract_print *print, void *print_priv) 707 { 708 wmi_print_event_log_buffer( 709 &wmi->log_info.wmi_rx_event_log_buf_info, 710 count, print, print_priv); 711 } 712 713 inline void 714 wmi_print_mgmt_event_log(wmi_unified_t wmi, uint32_t count, 715 qdf_abstract_print *print, void *print_priv) 716 { 717 wmi_print_event_log_buffer( 718 &wmi->log_info.wmi_mgmt_event_log_buf_info, 719 count, print, print_priv); 720 } 721 722 #ifdef CONFIG_MCL 723 const int8_t * const debugfs_dir[MAX_WMI_INSTANCES] = {"WMI0"}; 724 #else 725 const int8_t * const debugfs_dir[MAX_WMI_INSTANCES] = {"WMI0", "WMI1", "WMI2"}; 726 #endif 727 728 /* debugfs routines*/ 729 730 /** 731 * debug_wmi_##func_base##_show() - debugfs functions to display content of 732 * command and event buffers. Macro uses max buffer length to display 733 * buffer when it is wraparound. 734 * 735 * @m: debugfs handler to access wmi_handle 736 * @v: Variable arguments (not used) 737 * 738 * Return: Length of characters printed 739 */ 740 #define GENERATE_COMMAND_DEBUG_SHOW_FUNCS(func_base, wmi_ring_size) \ 741 static int debug_wmi_##func_base##_show(struct seq_file *m, \ 742 void *v) \ 743 { \ 744 wmi_unified_t wmi_handle = (wmi_unified_t) m->private; \ 745 struct wmi_log_buf_t *wmi_log = \ 746 &wmi_handle->log_info.wmi_##func_base##_buf_info;\ 747 int pos, nread, outlen; \ 748 int i; \ 749 uint64_t secs, usecs; \ 750 \ 751 qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock); \ 752 if (!wmi_log->length) { \ 753 qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);\ 754 return wmi_bp_seq_printf(m, \ 755 "no elements to read from ring buffer!\n"); \ 756 } \ 757 \ 758 if (wmi_log->length <= wmi_ring_size) \ 759 nread = wmi_log->length; \ 760 else \ 761 nread = wmi_ring_size; \ 762 \ 763 if (*(wmi_log->p_buf_tail_idx) == 0) \ 764 /* tail can be 0 after wrap-around */ \ 765 pos = wmi_ring_size - 1; \ 766 else \ 767 pos = *(wmi_log->p_buf_tail_idx) - 1; \ 768 \ 769 outlen = wmi_bp_seq_printf(m, "Length = %d\n", wmi_log->length);\ 770 qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock); \ 771 while (nread--) { \ 772 struct wmi_command_debug *wmi_record; \ 773 \ 774 wmi_record = (struct wmi_command_debug *) \ 775 &(((struct wmi_command_debug *)wmi_log->buf)[pos]);\ 776 outlen += wmi_bp_seq_printf(m, "CMD ID = %x\n", \ 777 (wmi_record->command)); \ 778 qdf_log_timestamp_to_secs(wmi_record->time, &secs,\ 779 &usecs); \ 780 outlen += \ 781 wmi_bp_seq_printf(m, "CMD TIME = [%llu.%06llu]\n",\ 782 secs, usecs); \ 783 outlen += wmi_bp_seq_printf(m, "CMD = "); \ 784 for (i = 0; i < (wmi_record_max_length/ \ 785 sizeof(uint32_t)); i++) \ 786 outlen += wmi_bp_seq_printf(m, "%x ", \ 787 wmi_record->data[i]); \ 788 outlen += wmi_bp_seq_printf(m, "\n"); \ 789 \ 790 if (pos == 0) \ 791 pos = wmi_ring_size - 1; \ 792 else \ 793 pos--; \ 794 } \ 795 return outlen; \ 796 } \ 797 798 #define GENERATE_EVENT_DEBUG_SHOW_FUNCS(func_base, wmi_ring_size) \ 799 static int debug_wmi_##func_base##_show(struct seq_file *m, \ 800 void *v) \ 801 { \ 802 wmi_unified_t wmi_handle = (wmi_unified_t) m->private; \ 803 struct wmi_log_buf_t *wmi_log = \ 804 &wmi_handle->log_info.wmi_##func_base##_buf_info;\ 805 int pos, nread, outlen; \ 806 int i; \ 807 uint64_t secs, usecs; \ 808 \ 809 qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock); \ 810 if (!wmi_log->length) { \ 811 qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock);\ 812 return wmi_bp_seq_printf(m, \ 813 "no elements to read from ring buffer!\n"); \ 814 } \ 815 \ 816 if (wmi_log->length <= wmi_ring_size) \ 817 nread = wmi_log->length; \ 818 else \ 819 nread = wmi_ring_size; \ 820 \ 821 if (*(wmi_log->p_buf_tail_idx) == 0) \ 822 /* tail can be 0 after wrap-around */ \ 823 pos = wmi_ring_size - 1; \ 824 else \ 825 pos = *(wmi_log->p_buf_tail_idx) - 1; \ 826 \ 827 outlen = wmi_bp_seq_printf(m, "Length = %d\n", wmi_log->length);\ 828 qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock); \ 829 while (nread--) { \ 830 struct wmi_event_debug *wmi_record; \ 831 \ 832 wmi_record = (struct wmi_event_debug *) \ 833 &(((struct wmi_event_debug *)wmi_log->buf)[pos]);\ 834 qdf_log_timestamp_to_secs(wmi_record->time, &secs,\ 835 &usecs); \ 836 outlen += wmi_bp_seq_printf(m, "Event ID = %x\n",\ 837 (wmi_record->event)); \ 838 outlen += \ 839 wmi_bp_seq_printf(m, "Event TIME = [%llu.%06llu]\n",\ 840 secs, usecs); \ 841 outlen += wmi_bp_seq_printf(m, "CMD = "); \ 842 for (i = 0; i < (wmi_record_max_length/ \ 843 sizeof(uint32_t)); i++) \ 844 outlen += wmi_bp_seq_printf(m, "%x ", \ 845 wmi_record->data[i]); \ 846 outlen += wmi_bp_seq_printf(m, "\n"); \ 847 \ 848 if (pos == 0) \ 849 pos = wmi_ring_size - 1; \ 850 else \ 851 pos--; \ 852 } \ 853 return outlen; \ 854 } 855 856 GENERATE_COMMAND_DEBUG_SHOW_FUNCS(command_log, wmi_display_size); 857 GENERATE_COMMAND_DEBUG_SHOW_FUNCS(command_tx_cmp_log, wmi_display_size); 858 GENERATE_EVENT_DEBUG_SHOW_FUNCS(event_log, wmi_display_size); 859 GENERATE_EVENT_DEBUG_SHOW_FUNCS(rx_event_log, wmi_display_size); 860 GENERATE_COMMAND_DEBUG_SHOW_FUNCS(mgmt_command_log, wmi_display_size); 861 GENERATE_COMMAND_DEBUG_SHOW_FUNCS(mgmt_command_tx_cmp_log, 862 wmi_display_size); 863 GENERATE_EVENT_DEBUG_SHOW_FUNCS(mgmt_event_log, wmi_display_size); 864 865 /** 866 * debug_wmi_enable_show() - debugfs functions to display enable state of 867 * wmi logging feature. 868 * 869 * @m: debugfs handler to access wmi_handle 870 * @v: Variable arguments (not used) 871 * 872 * Return: always 1 873 */ 874 static int debug_wmi_enable_show(struct seq_file *m, void *v) 875 { 876 wmi_unified_t wmi_handle = (wmi_unified_t) m->private; 877 878 return wmi_bp_seq_printf(m, "%d\n", 879 wmi_handle->log_info.wmi_logging_enable); 880 } 881 882 /** 883 * debug_wmi_log_size_show() - debugfs functions to display configured size of 884 * wmi logging command/event buffer and management command/event buffer. 885 * 886 * @m: debugfs handler to access wmi_handle 887 * @v: Variable arguments (not used) 888 * 889 * Return: Length of characters printed 890 */ 891 static int debug_wmi_log_size_show(struct seq_file *m, void *v) 892 { 893 894 wmi_bp_seq_printf(m, "WMI command/event log max size:%d\n", 895 wmi_log_max_entry); 896 return wmi_bp_seq_printf(m, 897 "WMI management command/events log max size:%d\n", 898 wmi_mgmt_log_max_entry); 899 } 900 901 /** 902 * debug_wmi_##func_base##_write() - debugfs functions to clear 903 * wmi logging command/event buffer and management command/event buffer. 904 * 905 * @file: file handler to access wmi_handle 906 * @buf: received data buffer 907 * @count: length of received buffer 908 * @ppos: Not used 909 * 910 * Return: count 911 */ 912 #define GENERATE_DEBUG_WRITE_FUNCS(func_base, wmi_ring_size, wmi_record_type)\ 913 static ssize_t debug_wmi_##func_base##_write(struct file *file, \ 914 const char __user *buf, \ 915 size_t count, loff_t *ppos) \ 916 { \ 917 int k, ret; \ 918 wmi_unified_t wmi_handle = \ 919 ((struct seq_file *)file->private_data)->private;\ 920 struct wmi_log_buf_t *wmi_log = &wmi_handle->log_info. \ 921 wmi_##func_base##_buf_info; \ 922 char locbuf[50]; \ 923 \ 924 if ((!buf) || (count > 50)) \ 925 return -EFAULT; \ 926 \ 927 if (copy_from_user(locbuf, buf, count)) \ 928 return -EFAULT; \ 929 \ 930 ret = sscanf(locbuf, "%d", &k); \ 931 if ((ret != 1) || (k != 0)) { \ 932 qdf_print("Wrong input, echo 0 to clear the wmi buffer\n");\ 933 return -EINVAL; \ 934 } \ 935 \ 936 qdf_spin_lock(&wmi_handle->log_info.wmi_record_lock); \ 937 qdf_mem_zero(wmi_log->buf, wmi_ring_size * \ 938 sizeof(struct wmi_record_type)); \ 939 wmi_log->length = 0; \ 940 *(wmi_log->p_buf_tail_idx) = 0; \ 941 qdf_spin_unlock(&wmi_handle->log_info.wmi_record_lock); \ 942 \ 943 return count; \ 944 } 945 946 GENERATE_DEBUG_WRITE_FUNCS(command_log, wmi_log_max_entry, 947 wmi_command_debug); 948 GENERATE_DEBUG_WRITE_FUNCS(command_tx_cmp_log, wmi_log_max_entry, 949 wmi_command_debug); 950 GENERATE_DEBUG_WRITE_FUNCS(event_log, wmi_log_max_entry, 951 wmi_event_debug); 952 GENERATE_DEBUG_WRITE_FUNCS(rx_event_log, wmi_log_max_entry, 953 wmi_event_debug); 954 GENERATE_DEBUG_WRITE_FUNCS(mgmt_command_log, wmi_mgmt_log_max_entry, 955 wmi_command_debug); 956 GENERATE_DEBUG_WRITE_FUNCS(mgmt_command_tx_cmp_log, 957 wmi_mgmt_log_max_entry, wmi_command_debug); 958 GENERATE_DEBUG_WRITE_FUNCS(mgmt_event_log, wmi_mgmt_log_max_entry, 959 wmi_event_debug); 960 961 /** 962 * debug_wmi_enable_write() - debugfs functions to enable/disable 963 * wmi logging feature. 964 * 965 * @file: file handler to access wmi_handle 966 * @buf: received data buffer 967 * @count: length of received buffer 968 * @ppos: Not used 969 * 970 * Return: count 971 */ 972 static ssize_t debug_wmi_enable_write(struct file *file, const char __user *buf, 973 size_t count, loff_t *ppos) 974 { 975 wmi_unified_t wmi_handle = 976 ((struct seq_file *)file->private_data)->private; 977 int k, ret; 978 char locbuf[50]; 979 980 if ((!buf) || (count > 50)) 981 return -EFAULT; 982 983 if (copy_from_user(locbuf, buf, count)) 984 return -EFAULT; 985 986 ret = sscanf(locbuf, "%d", &k); 987 if ((ret != 1) || ((k != 0) && (k != 1))) 988 return -EINVAL; 989 990 wmi_handle->log_info.wmi_logging_enable = k; 991 return count; 992 } 993 994 /** 995 * debug_wmi_log_size_write() - reserved. 996 * 997 * @file: file handler to access wmi_handle 998 * @buf: received data buffer 999 * @count: length of received buffer 1000 * @ppos: Not used 1001 * 1002 * Return: count 1003 */ 1004 static ssize_t debug_wmi_log_size_write(struct file *file, 1005 const char __user *buf, size_t count, loff_t *ppos) 1006 { 1007 return -EINVAL; 1008 } 1009 1010 /* Structure to maintain debug information */ 1011 struct wmi_debugfs_info { 1012 const char *name; 1013 struct dentry *de[MAX_WMI_INSTANCES]; 1014 const struct file_operations *ops; 1015 }; 1016 1017 #define DEBUG_FOO(func_base) { .name = #func_base, \ 1018 .ops = &debug_##func_base##_ops } 1019 1020 /** 1021 * debug_##func_base##_open() - Open debugfs entry for respective command 1022 * and event buffer. 1023 * 1024 * @inode: node for debug dir entry 1025 * @file: file handler 1026 * 1027 * Return: open status 1028 */ 1029 #define GENERATE_DEBUG_STRUCTS(func_base) \ 1030 static int debug_##func_base##_open(struct inode *inode, \ 1031 struct file *file) \ 1032 { \ 1033 return single_open(file, debug_##func_base##_show, \ 1034 inode->i_private); \ 1035 } \ 1036 \ 1037 \ 1038 static struct file_operations debug_##func_base##_ops = { \ 1039 .open = debug_##func_base##_open, \ 1040 .read = seq_read, \ 1041 .llseek = seq_lseek, \ 1042 .write = debug_##func_base##_write, \ 1043 .release = single_release, \ 1044 }; 1045 1046 GENERATE_DEBUG_STRUCTS(wmi_command_log); 1047 GENERATE_DEBUG_STRUCTS(wmi_command_tx_cmp_log); 1048 GENERATE_DEBUG_STRUCTS(wmi_event_log); 1049 GENERATE_DEBUG_STRUCTS(wmi_rx_event_log); 1050 GENERATE_DEBUG_STRUCTS(wmi_mgmt_command_log); 1051 GENERATE_DEBUG_STRUCTS(wmi_mgmt_command_tx_cmp_log); 1052 GENERATE_DEBUG_STRUCTS(wmi_mgmt_event_log); 1053 GENERATE_DEBUG_STRUCTS(wmi_enable); 1054 GENERATE_DEBUG_STRUCTS(wmi_log_size); 1055 1056 struct wmi_debugfs_info wmi_debugfs_infos[] = { 1057 DEBUG_FOO(wmi_command_log), 1058 DEBUG_FOO(wmi_command_tx_cmp_log), 1059 DEBUG_FOO(wmi_event_log), 1060 DEBUG_FOO(wmi_rx_event_log), 1061 DEBUG_FOO(wmi_mgmt_command_log), 1062 DEBUG_FOO(wmi_mgmt_command_tx_cmp_log), 1063 DEBUG_FOO(wmi_mgmt_event_log), 1064 DEBUG_FOO(wmi_enable), 1065 DEBUG_FOO(wmi_log_size), 1066 }; 1067 1068 #define NUM_DEBUG_INFOS (sizeof(wmi_debugfs_infos) / \ 1069 sizeof(wmi_debugfs_infos[0])) 1070 1071 /** 1072 * wmi_debugfs_create() - Create debug_fs entry for wmi logging. 1073 * 1074 * @wmi_handle: wmi handle 1075 * @par_entry: debug directory entry 1076 * @id: Index to debug info data array 1077 * 1078 * Return: none 1079 */ 1080 static void wmi_debugfs_create(wmi_unified_t wmi_handle, 1081 struct dentry *par_entry, int id) 1082 { 1083 int i; 1084 1085 if (par_entry == NULL || (id < 0) || (id >= MAX_WMI_INSTANCES)) 1086 goto out; 1087 1088 for (i = 0; i < NUM_DEBUG_INFOS; ++i) { 1089 1090 wmi_debugfs_infos[i].de[id] = debugfs_create_file( 1091 wmi_debugfs_infos[i].name, 0644, par_entry, 1092 wmi_handle, wmi_debugfs_infos[i].ops); 1093 1094 if (wmi_debugfs_infos[i].de[id] == NULL) { 1095 qdf_print("%s: debug Entry creation failed!\n", 1096 __func__); 1097 goto out; 1098 } 1099 } 1100 1101 return; 1102 1103 out: 1104 qdf_print("%s: debug Entry creation failed!\n", __func__); 1105 wmi_log_buffer_free(wmi_handle); 1106 return; 1107 } 1108 1109 /** 1110 * wmi_debugfs_remove() - Remove debugfs entry for wmi logging. 1111 * @wmi_handle: wmi handle 1112 * @dentry: debugfs directory entry 1113 * @id: Index to debug info data array 1114 * 1115 * Return: none 1116 */ 1117 static void wmi_debugfs_remove(wmi_unified_t wmi_handle) 1118 { 1119 int i; 1120 struct dentry *dentry = wmi_handle->log_info.wmi_log_debugfs_dir; 1121 int id; 1122 1123 if (!wmi_handle->log_info.wmi_instance_id) 1124 return; 1125 1126 id = wmi_handle->log_info.wmi_instance_id - 1; 1127 if (dentry && (!(id < 0) || (id >= MAX_WMI_INSTANCES))) { 1128 for (i = 0; i < NUM_DEBUG_INFOS; ++i) { 1129 if (wmi_debugfs_infos[i].de[id]) 1130 wmi_debugfs_infos[i].de[id] = NULL; 1131 } 1132 } 1133 1134 if (dentry) 1135 debugfs_remove_recursive(dentry); 1136 1137 if (wmi_handle->log_info.wmi_instance_id) 1138 wmi_handle->log_info.wmi_instance_id--; 1139 } 1140 1141 /** 1142 * wmi_debugfs_init() - debugfs functions to create debugfs directory and to 1143 * create debugfs enteries. 1144 * 1145 * @h: wmi handler 1146 * 1147 * Return: init status 1148 */ 1149 static QDF_STATUS wmi_debugfs_init(wmi_unified_t wmi_handle) 1150 { 1151 int wmi_index = wmi_handle->log_info.wmi_instance_id; 1152 1153 if (wmi_index < MAX_WMI_INSTANCES) { 1154 wmi_handle->log_info.wmi_log_debugfs_dir = 1155 debugfs_create_dir(debugfs_dir[wmi_index], NULL); 1156 1157 if (!wmi_handle->log_info.wmi_log_debugfs_dir) { 1158 qdf_print("error while creating debugfs dir for %s\n", 1159 debugfs_dir[wmi_index]); 1160 return QDF_STATUS_E_FAILURE; 1161 } 1162 1163 wmi_debugfs_create(wmi_handle, 1164 wmi_handle->log_info.wmi_log_debugfs_dir, 1165 wmi_index); 1166 wmi_handle->log_info.wmi_instance_id++; 1167 } 1168 1169 return QDF_STATUS_SUCCESS; 1170 } 1171 1172 /** 1173 * wmi_mgmt_cmd_record() - Wrapper function for mgmt command logging macro 1174 * 1175 * @wmi_handle: wmi handle 1176 * @cmd: mgmt command 1177 * @header: pointer to 802.11 header 1178 * @vdev_id: vdev id 1179 * @chanfreq: channel frequency 1180 * 1181 * Return: none 1182 */ 1183 void wmi_mgmt_cmd_record(wmi_unified_t wmi_handle, uint32_t cmd, 1184 void *header, uint32_t vdev_id, uint32_t chanfreq) 1185 { 1186 1187 uint32_t data[CUSTOM_MGMT_CMD_DATA_SIZE]; 1188 1189 data[0] = ((struct wmi_command_header *)header)->type; 1190 data[1] = ((struct wmi_command_header *)header)->sub_type; 1191 data[2] = vdev_id; 1192 data[3] = chanfreq; 1193 1194 qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock); 1195 1196 WMI_MGMT_COMMAND_RECORD(wmi_handle, cmd, (uint8_t *)data); 1197 1198 qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock); 1199 } 1200 #else 1201 /** 1202 * wmi_debugfs_remove() - Remove debugfs entry for wmi logging. 1203 * @wmi_handle: wmi handle 1204 * @dentry: debugfs directory entry 1205 * @id: Index to debug info data array 1206 * 1207 * Return: none 1208 */ 1209 static void wmi_debugfs_remove(wmi_unified_t wmi_handle) { } 1210 void wmi_mgmt_cmd_record(wmi_unified_t wmi_handle, uint32_t cmd, 1211 void *header, uint32_t vdev_id, uint32_t chanfreq) { } 1212 static inline void wmi_log_buffer_free(struct wmi_unified *wmi_handle) { } 1213 #endif /*WMI_INTERFACE_EVENT_LOGGING */ 1214 qdf_export_symbol(wmi_mgmt_cmd_record); 1215 1216 int wmi_get_host_credits(wmi_unified_t wmi_handle); 1217 /* WMI buffer APIs */ 1218 1219 #ifdef NBUF_MEMORY_DEBUG 1220 wmi_buf_t 1221 wmi_buf_alloc_debug(wmi_unified_t wmi_handle, uint16_t len, uint8_t *file_name, 1222 uint32_t line_num) 1223 { 1224 wmi_buf_t wmi_buf; 1225 1226 if (roundup(len + WMI_MIN_HEAD_ROOM, 4) > wmi_handle->max_msg_len) { 1227 QDF_ASSERT(0); 1228 return NULL; 1229 } 1230 1231 wmi_buf = qdf_nbuf_alloc_debug(NULL, 1232 roundup(len + WMI_MIN_HEAD_ROOM, 4), 1233 WMI_MIN_HEAD_ROOM, 4, false, file_name, 1234 line_num); 1235 1236 if (!wmi_buf) 1237 return NULL; 1238 1239 /* Clear the wmi buffer */ 1240 OS_MEMZERO(qdf_nbuf_data(wmi_buf), len); 1241 1242 /* 1243 * Set the length of the buffer to match the allocation size. 1244 */ 1245 qdf_nbuf_set_pktlen(wmi_buf, len); 1246 1247 return wmi_buf; 1248 } 1249 qdf_export_symbol(wmi_buf_alloc_debug); 1250 1251 void wmi_buf_free(wmi_buf_t net_buf) 1252 { 1253 qdf_nbuf_free(net_buf); 1254 } 1255 qdf_export_symbol(wmi_buf_free); 1256 #else 1257 wmi_buf_t wmi_buf_alloc(wmi_unified_t wmi_handle, uint16_t len) 1258 { 1259 wmi_buf_t wmi_buf; 1260 1261 if (roundup(len + WMI_MIN_HEAD_ROOM, 4) > wmi_handle->max_msg_len) { 1262 QDF_ASSERT(0); 1263 return NULL; 1264 } 1265 1266 wmi_buf = qdf_nbuf_alloc(NULL, roundup(len + WMI_MIN_HEAD_ROOM, 4), 1267 WMI_MIN_HEAD_ROOM, 4, false); 1268 if (!wmi_buf) 1269 return NULL; 1270 1271 /* Clear the wmi buffer */ 1272 OS_MEMZERO(qdf_nbuf_data(wmi_buf), len); 1273 1274 /* 1275 * Set the length of the buffer to match the allocation size. 1276 */ 1277 qdf_nbuf_set_pktlen(wmi_buf, len); 1278 return wmi_buf; 1279 } 1280 qdf_export_symbol(wmi_buf_alloc); 1281 1282 void wmi_buf_free(wmi_buf_t net_buf) 1283 { 1284 qdf_nbuf_free(net_buf); 1285 } 1286 qdf_export_symbol(wmi_buf_free); 1287 #endif 1288 1289 /** 1290 * wmi_get_max_msg_len() - get maximum WMI message length 1291 * @wmi_handle: WMI handle. 1292 * 1293 * This function returns the maximum WMI message length 1294 * 1295 * Return: maximum WMI message length 1296 */ 1297 uint16_t wmi_get_max_msg_len(wmi_unified_t wmi_handle) 1298 { 1299 return wmi_handle->max_msg_len - WMI_MIN_HEAD_ROOM; 1300 } 1301 qdf_export_symbol(wmi_get_max_msg_len); 1302 1303 #ifndef WMI_CMD_STRINGS 1304 static uint8_t *wmi_id_to_name(uint32_t wmi_command) 1305 { 1306 return "Invalid WMI cmd"; 1307 } 1308 1309 #endif 1310 1311 #ifdef CONFIG_MCL 1312 static inline void wmi_log_cmd_id(uint32_t cmd_id, uint32_t tag) 1313 { 1314 WMI_LOGD("Send WMI command:%s command_id:%d htc_tag:%d\n", 1315 wmi_id_to_name(cmd_id), cmd_id, tag); 1316 } 1317 1318 /** 1319 * wmi_is_pm_resume_cmd() - check if a cmd is part of the resume sequence 1320 * @cmd_id: command to check 1321 * 1322 * Return: true if the command is part of the resume sequence. 1323 */ 1324 static bool wmi_is_pm_resume_cmd(uint32_t cmd_id) 1325 { 1326 switch (cmd_id) { 1327 case WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID: 1328 case WMI_PDEV_RESUME_CMDID: 1329 return true; 1330 1331 default: 1332 return false; 1333 } 1334 } 1335 #else 1336 static bool wmi_is_pm_resume_cmd(uint32_t cmd_id) 1337 { 1338 return false; 1339 } 1340 #endif 1341 1342 /** 1343 * wmi_unified_cmd_send() - WMI command API 1344 * @wmi_handle: handle to wmi 1345 * @buf: wmi buf 1346 * @len: wmi buffer length 1347 * @cmd_id: wmi command id 1348 * 1349 * Note, it is NOT safe to access buf after calling this function! 1350 * 1351 * Return: 0 on success 1352 */ 1353 QDF_STATUS wmi_unified_cmd_send(wmi_unified_t wmi_handle, wmi_buf_t buf, 1354 uint32_t len, uint32_t cmd_id) 1355 { 1356 HTC_PACKET *pkt; 1357 QDF_STATUS status; 1358 uint16_t htc_tag = 0; 1359 1360 if (wmi_get_runtime_pm_inprogress(wmi_handle)) { 1361 htc_tag = 1362 (uint16_t)wmi_handle->ops->wmi_set_htc_tx_tag( 1363 wmi_handle, buf, cmd_id); 1364 } else if (qdf_atomic_read(&wmi_handle->is_target_suspended) && 1365 (!wmi_is_pm_resume_cmd(cmd_id))) { 1366 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1367 "%s: Target is suspended", __func__); 1368 QDF_ASSERT(0); 1369 return QDF_STATUS_E_BUSY; 1370 } 1371 if (wmi_handle->wmi_stopinprogress) { 1372 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1373 "WMI stop in progress\n"); 1374 return QDF_STATUS_E_INVAL; 1375 } 1376 1377 #ifndef WMI_NON_TLV_SUPPORT 1378 /* Do sanity check on the TLV parameter structure */ 1379 if (wmi_handle->target_type == WMI_TLV_TARGET) { 1380 void *buf_ptr = (void *)qdf_nbuf_data(buf); 1381 1382 if (wmi_handle->ops->wmi_check_command_params(NULL, buf_ptr, len, cmd_id) 1383 != 0) { 1384 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1385 "\nERROR: %s: Invalid WMI Param Buffer for Cmd:%d", 1386 __func__, cmd_id); 1387 return QDF_STATUS_E_INVAL; 1388 } 1389 } 1390 #endif 1391 1392 if (qdf_nbuf_push_head(buf, sizeof(WMI_CMD_HDR)) == NULL) { 1393 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1394 "%s, Failed to send cmd %x, no memory", 1395 __func__, cmd_id); 1396 return QDF_STATUS_E_NOMEM; 1397 } 1398 1399 WMI_SET_FIELD(qdf_nbuf_data(buf), WMI_CMD_HDR, COMMANDID, cmd_id); 1400 1401 qdf_atomic_inc(&wmi_handle->pending_cmds); 1402 if (qdf_atomic_read(&wmi_handle->pending_cmds) >= 1403 wmi_handle->wmi_max_cmds) { 1404 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1405 "\n%s: hostcredits = %d", __func__, 1406 wmi_get_host_credits(wmi_handle)); 1407 htc_dump_counter_info(wmi_handle->htc_handle); 1408 qdf_atomic_dec(&wmi_handle->pending_cmds); 1409 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1410 "%s: MAX %d WMI Pending cmds reached.", __func__, 1411 wmi_handle->wmi_max_cmds); 1412 QDF_BUG(0); 1413 return QDF_STATUS_E_BUSY; 1414 } 1415 1416 pkt = qdf_mem_malloc(sizeof(*pkt)); 1417 if (!pkt) { 1418 qdf_atomic_dec(&wmi_handle->pending_cmds); 1419 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1420 "%s, Failed to alloc htc packet %x, no memory", 1421 __func__, cmd_id); 1422 return QDF_STATUS_E_NOMEM; 1423 } 1424 1425 SET_HTC_PACKET_INFO_TX(pkt, 1426 NULL, 1427 qdf_nbuf_data(buf), len + sizeof(WMI_CMD_HDR), 1428 wmi_handle->wmi_endpoint_id, htc_tag); 1429 1430 SET_HTC_PACKET_NET_BUF_CONTEXT(pkt, buf); 1431 #ifdef CONFIG_MCL 1432 wmi_log_cmd_id(cmd_id, htc_tag); 1433 #endif 1434 1435 #ifdef WMI_INTERFACE_EVENT_LOGGING 1436 if (wmi_handle->log_info.wmi_logging_enable) { 1437 qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock); 1438 /* 1439 * Record 16 bytes of WMI cmd data - 1440 * exclude TLV and WMI headers 1441 * 1442 * WMI mgmt command already recorded in wmi_mgmt_cmd_record 1443 */ 1444 if (wmi_handle->ops->is_management_record(cmd_id) == false) { 1445 WMI_COMMAND_RECORD(wmi_handle, cmd_id, 1446 qdf_nbuf_data(buf) + 1447 wmi_handle->log_info.buf_offset_command); 1448 } 1449 qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock); 1450 } 1451 #endif 1452 1453 status = htc_send_pkt(wmi_handle->htc_handle, pkt); 1454 1455 if (QDF_STATUS_SUCCESS != status) { 1456 qdf_atomic_dec(&wmi_handle->pending_cmds); 1457 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1458 "%s %d, htc_send_pkt failed", __func__, __LINE__); 1459 qdf_mem_free(pkt); 1460 return status; 1461 } 1462 1463 return QDF_STATUS_SUCCESS; 1464 } 1465 qdf_export_symbol(wmi_unified_cmd_send); 1466 1467 /** 1468 * wmi_unified_get_event_handler_ix() - gives event handler's index 1469 * @wmi_handle: handle to wmi 1470 * @event_id: wmi event id 1471 * 1472 * Return: event handler's index 1473 */ 1474 static int wmi_unified_get_event_handler_ix(wmi_unified_t wmi_handle, 1475 uint32_t event_id) 1476 { 1477 uint32_t idx = 0; 1478 int32_t invalid_idx = -1; 1479 struct wmi_soc *soc = wmi_handle->soc; 1480 1481 for (idx = 0; (idx < soc->max_event_idx && 1482 idx < WMI_UNIFIED_MAX_EVENT); ++idx) { 1483 if (wmi_handle->event_id[idx] == event_id && 1484 wmi_handle->event_handler[idx] != NULL) { 1485 return idx; 1486 } 1487 } 1488 1489 return invalid_idx; 1490 } 1491 1492 /** 1493 * wmi_unified_register_event() - register wmi event handler 1494 * @wmi_handle: handle to wmi 1495 * @event_id: wmi event id 1496 * @handler_func: wmi event handler function 1497 * 1498 * Return: 0 on success 1499 */ 1500 int wmi_unified_register_event(wmi_unified_t wmi_handle, 1501 uint32_t event_id, 1502 wmi_unified_event_handler handler_func) 1503 { 1504 uint32_t idx = 0; 1505 uint32_t evt_id; 1506 struct wmi_soc *soc = wmi_handle->soc; 1507 1508 if (event_id >= wmi_events_max || 1509 wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) { 1510 qdf_print("%s: Event id %d is unavailable\n", 1511 __func__, event_id); 1512 return QDF_STATUS_E_FAILURE; 1513 } 1514 evt_id = wmi_handle->wmi_events[event_id]; 1515 if (wmi_unified_get_event_handler_ix(wmi_handle, evt_id) != -1) { 1516 qdf_print("%s : event handler already registered 0x%x\n", 1517 __func__, evt_id); 1518 return QDF_STATUS_E_FAILURE; 1519 } 1520 if (soc->max_event_idx == WMI_UNIFIED_MAX_EVENT) { 1521 qdf_print("%s : no more event handlers 0x%x\n", 1522 __func__, evt_id); 1523 return QDF_STATUS_E_FAILURE; 1524 } 1525 idx = soc->max_event_idx; 1526 wmi_handle->event_handler[idx] = handler_func; 1527 wmi_handle->event_id[idx] = evt_id; 1528 qdf_spin_lock_bh(&soc->ctx_lock); 1529 wmi_handle->ctx[idx] = WMI_RX_UMAC_CTX; 1530 qdf_spin_unlock_bh(&soc->ctx_lock); 1531 soc->max_event_idx++; 1532 1533 return 0; 1534 } 1535 1536 /** 1537 * wmi_unified_register_event_handler() - register wmi event handler 1538 * @wmi_handle: handle to wmi 1539 * @event_id: wmi event id 1540 * @handler_func: wmi event handler function 1541 * @rx_ctx: rx execution context for wmi rx events 1542 * 1543 * This API is to support legacy requirements. Will be deprecated in future. 1544 * Return: 0 on success 1545 */ 1546 int wmi_unified_register_event_handler(wmi_unified_t wmi_handle, 1547 wmi_conv_event_id event_id, 1548 wmi_unified_event_handler handler_func, 1549 uint8_t rx_ctx) 1550 { 1551 uint32_t idx = 0; 1552 uint32_t evt_id; 1553 struct wmi_soc *soc = wmi_handle->soc; 1554 1555 if (event_id >= wmi_events_max || 1556 wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) { 1557 qdf_print("%s: Event id %d is unavailable\n", 1558 __func__, event_id); 1559 return QDF_STATUS_E_FAILURE; 1560 } 1561 evt_id = wmi_handle->wmi_events[event_id]; 1562 1563 if (wmi_unified_get_event_handler_ix(wmi_handle, evt_id) != -1) { 1564 qdf_print("%s : event handler already registered 0x%x\n", 1565 __func__, evt_id); 1566 return QDF_STATUS_E_FAILURE; 1567 } 1568 if (soc->max_event_idx == WMI_UNIFIED_MAX_EVENT) { 1569 qdf_print("%s : no more event handlers 0x%x\n", 1570 __func__, evt_id); 1571 return QDF_STATUS_E_FAILURE; 1572 } 1573 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_DEBUG, 1574 "Registered event handler for event 0x%8x\n", evt_id); 1575 idx = soc->max_event_idx; 1576 wmi_handle->event_handler[idx] = handler_func; 1577 wmi_handle->event_id[idx] = evt_id; 1578 qdf_spin_lock_bh(&soc->ctx_lock); 1579 wmi_handle->ctx[idx] = rx_ctx; 1580 qdf_spin_unlock_bh(&soc->ctx_lock); 1581 soc->max_event_idx++; 1582 1583 return 0; 1584 } 1585 qdf_export_symbol(wmi_unified_register_event_handler); 1586 1587 /** 1588 * wmi_unified_unregister_event() - unregister wmi event handler 1589 * @wmi_handle: handle to wmi 1590 * @event_id: wmi event id 1591 * 1592 * Return: 0 on success 1593 */ 1594 int wmi_unified_unregister_event(wmi_unified_t wmi_handle, 1595 uint32_t event_id) 1596 { 1597 uint32_t idx = 0; 1598 uint32_t evt_id; 1599 struct wmi_soc *soc = wmi_handle->soc; 1600 1601 if (event_id >= wmi_events_max || 1602 wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) { 1603 qdf_print("%s: Event id %d is unavailable\n", 1604 __func__, event_id); 1605 return QDF_STATUS_E_FAILURE; 1606 } 1607 evt_id = wmi_handle->wmi_events[event_id]; 1608 1609 idx = wmi_unified_get_event_handler_ix(wmi_handle, evt_id); 1610 if (idx == -1) { 1611 qdf_print("%s : event handler is not registered: evt id 0x%x\n", 1612 __func__, evt_id); 1613 return QDF_STATUS_E_FAILURE; 1614 } 1615 wmi_handle->event_handler[idx] = NULL; 1616 wmi_handle->event_id[idx] = 0; 1617 --soc->max_event_idx; 1618 wmi_handle->event_handler[idx] = 1619 wmi_handle->event_handler[soc->max_event_idx]; 1620 wmi_handle->event_id[idx] = 1621 wmi_handle->event_id[soc->max_event_idx]; 1622 1623 return 0; 1624 } 1625 1626 /** 1627 * wmi_unified_unregister_event_handler() - unregister wmi event handler 1628 * @wmi_handle: handle to wmi 1629 * @event_id: wmi event id 1630 * 1631 * Return: 0 on success 1632 */ 1633 int wmi_unified_unregister_event_handler(wmi_unified_t wmi_handle, 1634 wmi_conv_event_id event_id) 1635 { 1636 uint32_t idx = 0; 1637 uint32_t evt_id; 1638 struct wmi_soc *soc = wmi_handle->soc; 1639 1640 if (event_id >= wmi_events_max || 1641 wmi_handle->wmi_events[event_id] == WMI_EVENT_ID_INVALID) { 1642 qdf_print("%s: Event id %d is unavailable\n", 1643 __func__, event_id); 1644 return QDF_STATUS_E_FAILURE; 1645 } 1646 evt_id = wmi_handle->wmi_events[event_id]; 1647 1648 idx = wmi_unified_get_event_handler_ix(wmi_handle, evt_id); 1649 if (idx == -1) { 1650 qdf_print("%s : event handler is not registered: evt id 0x%x\n", 1651 __func__, evt_id); 1652 return QDF_STATUS_E_FAILURE; 1653 } 1654 wmi_handle->event_handler[idx] = NULL; 1655 wmi_handle->event_id[idx] = 0; 1656 --soc->max_event_idx; 1657 wmi_handle->event_handler[idx] = 1658 wmi_handle->event_handler[soc->max_event_idx]; 1659 wmi_handle->event_id[idx] = 1660 wmi_handle->event_id[soc->max_event_idx]; 1661 1662 return 0; 1663 } 1664 qdf_export_symbol(wmi_unified_unregister_event_handler); 1665 1666 /** 1667 * wmi_process_fw_event_default_ctx() - process in default caller context 1668 * @wmi_handle: handle to wmi 1669 * @htc_packet: pointer to htc packet 1670 * @exec_ctx: execution context for wmi fw event 1671 * 1672 * Event process by below function will be in default caller context. 1673 * wmi internally provides rx work thread processing context. 1674 * 1675 * Return: none 1676 */ 1677 static void wmi_process_fw_event_default_ctx(struct wmi_unified *wmi_handle, 1678 HTC_PACKET *htc_packet, uint8_t exec_ctx) 1679 { 1680 wmi_buf_t evt_buf; 1681 evt_buf = (wmi_buf_t) htc_packet->pPktContext; 1682 1683 #ifndef CONFIG_MCL 1684 wmi_handle->rx_ops.wma_process_fw_event_handler_cbk 1685 (wmi_handle->scn_handle, evt_buf, exec_ctx); 1686 #else 1687 wmi_handle->rx_ops.wma_process_fw_event_handler_cbk(wmi_handle, 1688 evt_buf, exec_ctx); 1689 #endif 1690 1691 return; 1692 } 1693 1694 /** 1695 * wmi_process_fw_event_worker_thread_ctx() - process in worker thread context 1696 * @wmi_handle: handle to wmi 1697 * @htc_packet: pointer to htc packet 1698 * 1699 * Event process by below function will be in worker thread context. 1700 * Use this method for events which are not critical and not 1701 * handled in protocol stack. 1702 * 1703 * Return: none 1704 */ 1705 static void wmi_process_fw_event_worker_thread_ctx 1706 (struct wmi_unified *wmi_handle, HTC_PACKET *htc_packet) 1707 { 1708 wmi_buf_t evt_buf; 1709 1710 evt_buf = (wmi_buf_t) htc_packet->pPktContext; 1711 1712 qdf_spin_lock_bh(&wmi_handle->eventq_lock); 1713 qdf_nbuf_queue_add(&wmi_handle->event_queue, evt_buf); 1714 qdf_spin_unlock_bh(&wmi_handle->eventq_lock); 1715 qdf_queue_work(0, wmi_handle->wmi_rx_work_queue, 1716 &wmi_handle->rx_event_work); 1717 1718 return; 1719 } 1720 1721 /** 1722 * wmi_get_pdev_ep: Get wmi handle based on endpoint 1723 * @soc: handle to wmi soc 1724 * @ep: endpoint id 1725 * 1726 * Return: none 1727 */ 1728 static struct wmi_unified *wmi_get_pdev_ep(struct wmi_soc *soc, 1729 HTC_ENDPOINT_ID ep) 1730 { 1731 uint32_t i; 1732 1733 for (i = 0; i < WMI_MAX_RADIOS; i++) 1734 if (soc->wmi_endpoint_id[i] == ep) 1735 break; 1736 1737 if (i == WMI_MAX_RADIOS) 1738 return NULL; 1739 1740 return soc->wmi_pdev[i]; 1741 } 1742 1743 /** 1744 * wmi_control_rx() - process fw events callbacks 1745 * @ctx: handle to wmi 1746 * @htc_packet: pointer to htc packet 1747 * 1748 * Return: none 1749 */ 1750 static void wmi_control_rx(void *ctx, HTC_PACKET *htc_packet) 1751 { 1752 struct wmi_soc *soc = (struct wmi_soc *) ctx; 1753 struct wmi_unified *wmi_handle; 1754 wmi_buf_t evt_buf; 1755 uint32_t id; 1756 uint32_t idx = 0; 1757 enum wmi_rx_exec_ctx exec_ctx; 1758 1759 evt_buf = (wmi_buf_t) htc_packet->pPktContext; 1760 1761 wmi_handle = wmi_get_pdev_ep(soc, htc_packet->Endpoint); 1762 if (wmi_handle == NULL) { 1763 qdf_print 1764 ("%s :unable to get wmi_handle to Endpoint %d\n", 1765 __func__, htc_packet->Endpoint); 1766 qdf_nbuf_free(evt_buf); 1767 return; 1768 } 1769 1770 id = WMI_GET_FIELD(qdf_nbuf_data(evt_buf), WMI_CMD_HDR, COMMANDID); 1771 idx = wmi_unified_get_event_handler_ix(wmi_handle, id); 1772 if (qdf_unlikely(idx == A_ERROR)) { 1773 WMI_LOGD("%s :event handler is not registered: event id 0x%x\n", 1774 __func__, id); 1775 qdf_nbuf_free(evt_buf); 1776 return; 1777 } 1778 qdf_spin_lock_bh(&soc->ctx_lock); 1779 exec_ctx = wmi_handle->ctx[idx]; 1780 qdf_spin_unlock_bh(&soc->ctx_lock); 1781 1782 #ifdef WMI_INTERFACE_EVENT_LOGGING 1783 if (wmi_handle->log_info.wmi_logging_enable) { 1784 uint8_t *data; 1785 data = qdf_nbuf_data(evt_buf); 1786 1787 qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock); 1788 /* Exclude 4 bytes of TLV header */ 1789 WMI_RX_EVENT_RECORD(wmi_handle, id, data + 1790 wmi_handle->log_info.buf_offset_event); 1791 qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock); 1792 } 1793 #endif 1794 1795 if (exec_ctx == WMI_RX_WORK_CTX) { 1796 wmi_process_fw_event_worker_thread_ctx 1797 (wmi_handle, htc_packet); 1798 } else if (exec_ctx > WMI_RX_WORK_CTX) { 1799 wmi_process_fw_event_default_ctx 1800 (wmi_handle, htc_packet, exec_ctx); 1801 } else { 1802 qdf_print("%s :Invalid event context %d\n", __func__, exec_ctx); 1803 qdf_nbuf_free(evt_buf); 1804 } 1805 1806 } 1807 1808 /** 1809 * wmi_process_fw_event() - process any fw event 1810 * @wmi_handle: wmi handle 1811 * @evt_buf: fw event buffer 1812 * 1813 * This function process fw event in caller context 1814 * 1815 * Return: none 1816 */ 1817 void wmi_process_fw_event(struct wmi_unified *wmi_handle, wmi_buf_t evt_buf) 1818 { 1819 __wmi_control_rx(wmi_handle, evt_buf); 1820 } 1821 1822 /** 1823 * __wmi_control_rx() - process serialize wmi event callback 1824 * @wmi_handle: wmi handle 1825 * @evt_buf: fw event buffer 1826 * 1827 * Return: none 1828 */ 1829 void __wmi_control_rx(struct wmi_unified *wmi_handle, wmi_buf_t evt_buf) 1830 { 1831 uint32_t id; 1832 uint8_t *data; 1833 uint32_t len; 1834 void *wmi_cmd_struct_ptr = NULL; 1835 #ifndef WMI_NON_TLV_SUPPORT 1836 int tlv_ok_status = 0; 1837 #endif 1838 uint32_t idx = 0; 1839 1840 id = WMI_GET_FIELD(qdf_nbuf_data(evt_buf), WMI_CMD_HDR, COMMANDID); 1841 1842 if (qdf_nbuf_pull_head(evt_buf, sizeof(WMI_CMD_HDR)) == NULL) 1843 goto end; 1844 1845 data = qdf_nbuf_data(evt_buf); 1846 len = qdf_nbuf_len(evt_buf); 1847 1848 #ifndef WMI_NON_TLV_SUPPORT 1849 if (wmi_handle->target_type == WMI_TLV_TARGET) { 1850 /* Validate and pad(if necessary) the TLVs */ 1851 tlv_ok_status = 1852 wmi_handle->ops->wmi_check_and_pad_event(wmi_handle->scn_handle, 1853 data, len, id, 1854 &wmi_cmd_struct_ptr); 1855 if (tlv_ok_status != 0) { 1856 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1857 "%s: Error: id=0x%d, wmitlv check status=%d\n", 1858 __func__, id, tlv_ok_status); 1859 goto end; 1860 } 1861 } 1862 #endif 1863 1864 idx = wmi_unified_get_event_handler_ix(wmi_handle, id); 1865 if (idx == A_ERROR) { 1866 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_ERROR, 1867 "%s : event handler is not registered: event id 0x%x\n", 1868 __func__, id); 1869 goto end; 1870 } 1871 #ifdef WMI_INTERFACE_EVENT_LOGGING 1872 if (wmi_handle->log_info.wmi_logging_enable) { 1873 qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock); 1874 /* Exclude 4 bytes of TLV header */ 1875 if (wmi_handle->ops->is_management_record(id)) { 1876 WMI_MGMT_EVENT_RECORD(wmi_handle, id, data 1877 + wmi_handle->log_info.buf_offset_event); 1878 } else { 1879 WMI_EVENT_RECORD(wmi_handle, id, data + 1880 wmi_handle->log_info.buf_offset_event); 1881 } 1882 qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock); 1883 } 1884 #endif 1885 /* Call the WMI registered event handler */ 1886 if (wmi_handle->target_type == WMI_TLV_TARGET) 1887 wmi_handle->event_handler[idx] (wmi_handle->scn_handle, 1888 wmi_cmd_struct_ptr, len); 1889 else 1890 wmi_handle->event_handler[idx] (wmi_handle->scn_handle, 1891 data, len); 1892 1893 end: 1894 /* Free event buffer and allocated event tlv */ 1895 #ifndef WMI_NON_TLV_SUPPORT 1896 if (wmi_handle->target_type == WMI_TLV_TARGET) 1897 wmi_handle->ops->wmi_free_allocated_event(id, &wmi_cmd_struct_ptr); 1898 #endif 1899 1900 qdf_nbuf_free(evt_buf); 1901 1902 } 1903 1904 #define WMI_WQ_WD_TIMEOUT (30 * 1000) /* 30s */ 1905 1906 static inline void wmi_workqueue_watchdog_warn(uint32_t msg_type_id) 1907 { 1908 QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR, 1909 "%s: WLAN_BUG_RCA: Message type %x has exceeded its alloted time of %ds", 1910 __func__, msg_type_id, WMI_WQ_WD_TIMEOUT / 1000); 1911 } 1912 1913 #ifdef CONFIG_SLUB_DEBUG_ON 1914 static void wmi_workqueue_watchdog_bite(void *arg) 1915 { 1916 struct wmi_wq_dbg_info *info = arg; 1917 1918 wmi_workqueue_watchdog_warn(info->wd_msg_type_id); 1919 qdf_print_thread_trace(info->task); 1920 1921 QDF_TRACE(QDF_MODULE_ID_QDF, QDF_TRACE_LEVEL_ERROR, 1922 "%s: Going down for WMI WQ Watchdog Bite!", __func__); 1923 QDF_BUG(0); 1924 } 1925 #else 1926 static inline void wmi_workqueue_watchdog_bite(void *arg) 1927 { 1928 struct wmi_wq_dbg_info *info = arg; 1929 1930 wmi_workqueue_watchdog_warn(info->wd_msg_type_id); 1931 } 1932 #endif 1933 1934 /** 1935 * wmi_rx_event_work() - process rx event in rx work queue context 1936 * @arg: opaque pointer to wmi handle 1937 * 1938 * This function process any fw event to serialize it through rx worker thread. 1939 * 1940 * Return: none 1941 */ 1942 static void wmi_rx_event_work(void *arg) 1943 { 1944 wmi_buf_t buf; 1945 struct wmi_unified *wmi = arg; 1946 qdf_timer_t wd_timer; 1947 struct wmi_wq_dbg_info info; 1948 1949 /* initialize WMI workqueue watchdog timer */ 1950 qdf_timer_init(NULL, &wd_timer, &wmi_workqueue_watchdog_bite, 1951 &info, QDF_TIMER_TYPE_SW); 1952 qdf_spin_lock_bh(&wmi->eventq_lock); 1953 buf = qdf_nbuf_queue_remove(&wmi->event_queue); 1954 qdf_spin_unlock_bh(&wmi->eventq_lock); 1955 while (buf) { 1956 qdf_timer_start(&wd_timer, WMI_WQ_WD_TIMEOUT); 1957 info.wd_msg_type_id = 1958 WMI_GET_FIELD(qdf_nbuf_data(buf), WMI_CMD_HDR, COMMANDID); 1959 info.wmi_wq = wmi->wmi_rx_work_queue; 1960 info.task = qdf_get_current_task(); 1961 __wmi_control_rx(wmi, buf); 1962 qdf_timer_stop(&wd_timer); 1963 qdf_spin_lock_bh(&wmi->eventq_lock); 1964 buf = qdf_nbuf_queue_remove(&wmi->event_queue); 1965 qdf_spin_unlock_bh(&wmi->eventq_lock); 1966 } 1967 qdf_timer_free(&wd_timer); 1968 } 1969 1970 #ifdef FEATURE_RUNTIME_PM 1971 /** 1972 * wmi_runtime_pm_init() - initialize runtime pm wmi variables 1973 * @wmi_handle: wmi context 1974 */ 1975 static void wmi_runtime_pm_init(struct wmi_unified *wmi_handle) 1976 { 1977 qdf_atomic_init(&wmi_handle->runtime_pm_inprogress); 1978 } 1979 1980 /** 1981 * wmi_set_runtime_pm_inprogress() - set runtime pm progress flag 1982 * @wmi_handle: wmi context 1983 * @val: runtime pm progress flag 1984 */ 1985 void wmi_set_runtime_pm_inprogress(wmi_unified_t wmi_handle, A_BOOL val) 1986 { 1987 qdf_atomic_set(&wmi_handle->runtime_pm_inprogress, val); 1988 } 1989 1990 /** 1991 * wmi_get_runtime_pm_inprogress() - get runtime pm progress flag 1992 * @wmi_handle: wmi context 1993 */ 1994 inline bool wmi_get_runtime_pm_inprogress(wmi_unified_t wmi_handle) 1995 { 1996 return qdf_atomic_read(&wmi_handle->runtime_pm_inprogress); 1997 } 1998 #else 1999 static void wmi_runtime_pm_init(struct wmi_unified *wmi_handle) 2000 { 2001 } 2002 #endif 2003 2004 /** 2005 * wmi_unified_get_soc_handle: Get WMI SoC handle 2006 * @param wmi_handle: WMI context got from wmi_attach 2007 * 2008 * return: Pointer to Soc handle 2009 */ 2010 void *wmi_unified_get_soc_handle(struct wmi_unified *wmi_handle) 2011 { 2012 return wmi_handle->soc; 2013 } 2014 2015 /** 2016 * wmi_interface_logging_init: Interface looging init 2017 * @param wmi_handle: Pointer to wmi handle object 2018 * 2019 * return: None 2020 */ 2021 #ifdef WMI_INTERFACE_EVENT_LOGGING 2022 static inline void wmi_interface_logging_init(struct wmi_unified *wmi_handle) 2023 { 2024 if (QDF_STATUS_SUCCESS == wmi_log_init(wmi_handle)) { 2025 qdf_spinlock_create(&wmi_handle->log_info.wmi_record_lock); 2026 wmi_debugfs_init(wmi_handle); 2027 } 2028 } 2029 #else 2030 static inline void wmi_interface_logging_init(struct wmi_unified *wmi_handle) 2031 { 2032 } 2033 #endif 2034 2035 /** 2036 * wmi_target_params_init: Target specific params init 2037 * @param wmi_soc: Pointer to wmi soc object 2038 * @param wmi_handle: Pointer to wmi handle object 2039 * 2040 * return: None 2041 */ 2042 #ifndef CONFIG_MCL 2043 static inline void wmi_target_params_init(struct wmi_soc *soc, 2044 struct wmi_unified *wmi_handle) 2045 { 2046 wmi_handle->pdev_param = soc->pdev_param; 2047 wmi_handle->vdev_param = soc->vdev_param; 2048 wmi_handle->services = soc->services; 2049 } 2050 #else 2051 static inline void wmi_target_params_init(struct wmi_soc *soc, 2052 struct wmi_unified *wmi_handle) 2053 { 2054 wmi_handle->services = soc->services; 2055 } 2056 #endif 2057 2058 /** 2059 * wmi_unified_get_pdev_handle: Get WMI SoC handle 2060 * @param wmi_soc: Pointer to wmi soc object 2061 * @param pdev_idx: pdev index 2062 * 2063 * return: Pointer to wmi handle or NULL on failure 2064 */ 2065 void *wmi_unified_get_pdev_handle(struct wmi_soc *soc, uint32_t pdev_idx) 2066 { 2067 struct wmi_unified *wmi_handle; 2068 2069 if (pdev_idx >= WMI_MAX_RADIOS) 2070 return NULL; 2071 2072 if (soc->wmi_pdev[pdev_idx] == NULL) { 2073 wmi_handle = 2074 (struct wmi_unified *) qdf_mem_malloc( 2075 sizeof(struct wmi_unified)); 2076 if (wmi_handle == NULL) { 2077 qdf_print("allocation of wmi handle failed %zu\n", 2078 sizeof(struct wmi_unified)); 2079 return NULL; 2080 } 2081 wmi_handle->scn_handle = soc->scn_handle; 2082 wmi_handle->event_id = soc->event_id; 2083 wmi_handle->event_handler = soc->event_handler; 2084 wmi_handle->ctx = soc->ctx; 2085 wmi_handle->ops = soc->ops; 2086 qdf_spinlock_create(&wmi_handle->eventq_lock); 2087 qdf_nbuf_queue_init(&wmi_handle->event_queue); 2088 2089 qdf_create_work(0, &wmi_handle->rx_event_work, 2090 wmi_rx_event_work, wmi_handle); 2091 wmi_handle->wmi_rx_work_queue = 2092 qdf_create_workqueue("wmi_rx_event_work_queue"); 2093 if (NULL == wmi_handle->wmi_rx_work_queue) { 2094 WMI_LOGE("failed to create wmi_rx_event_work_queue"); 2095 goto error; 2096 } 2097 wmi_handle->wmi_events = soc->wmi_events; 2098 wmi_target_params_init(soc, wmi_handle); 2099 wmi_interface_logging_init(wmi_handle); 2100 qdf_atomic_init(&wmi_handle->pending_cmds); 2101 qdf_atomic_init(&wmi_handle->is_target_suspended); 2102 wmi_handle->target_type = soc->target_type; 2103 wmi_handle->wmi_max_cmds = soc->wmi_max_cmds; 2104 wmi_handle->soc = soc; 2105 2106 soc->wmi_pdev[pdev_idx] = wmi_handle; 2107 } else 2108 wmi_handle = soc->wmi_pdev[pdev_idx]; 2109 2110 wmi_handle->wmi_stopinprogress = 0; 2111 wmi_handle->wmi_endpoint_id = soc->wmi_endpoint_id[pdev_idx]; 2112 wmi_handle->htc_handle = soc->htc_handle; 2113 wmi_handle->max_msg_len = soc->max_msg_len[pdev_idx]; 2114 2115 return wmi_handle; 2116 2117 error: 2118 qdf_mem_free(wmi_handle); 2119 2120 return NULL; 2121 } 2122 qdf_export_symbol(wmi_unified_get_pdev_handle); 2123 2124 static void (*wmi_attach_register[WMI_MAX_TARGET_TYPE])(wmi_unified_t); 2125 2126 void wmi_unified_register_module(enum wmi_target_type target_type, 2127 void (*wmi_attach)(wmi_unified_t wmi_handle)) 2128 { 2129 if (target_type < WMI_MAX_TARGET_TYPE) 2130 wmi_attach_register[target_type] = wmi_attach; 2131 2132 return; 2133 } 2134 qdf_export_symbol(wmi_unified_register_module); 2135 2136 /** 2137 * wmi_unified_attach() - attach for unified WMI 2138 * @scn_handle: handle to SCN 2139 * @osdev: OS device context 2140 * @target_type: TLV or not-TLV based target 2141 * @use_cookie: cookie based allocation enabled/disabled 2142 * @ops: umac rx callbacks 2143 * @psoc: objmgr psoc 2144 * 2145 * @Return: wmi handle. 2146 */ 2147 void *wmi_unified_attach(void *scn_handle, 2148 struct wmi_unified_attach_params *param) 2149 { 2150 struct wmi_unified *wmi_handle; 2151 struct wmi_soc *soc; 2152 2153 soc = (struct wmi_soc *) qdf_mem_malloc(sizeof(struct wmi_soc)); 2154 if (soc == NULL) { 2155 qdf_print("Allocation of wmi_soc failed %zu\n", 2156 sizeof(struct wmi_soc)); 2157 return NULL; 2158 } 2159 2160 wmi_handle = 2161 (struct wmi_unified *) qdf_mem_malloc( 2162 sizeof(struct wmi_unified)); 2163 if (wmi_handle == NULL) { 2164 qdf_mem_free(soc); 2165 qdf_print("allocation of wmi handle failed %zu\n", 2166 sizeof(struct wmi_unified)); 2167 return NULL; 2168 } 2169 wmi_handle->soc = soc; 2170 wmi_handle->event_id = soc->event_id; 2171 wmi_handle->event_handler = soc->event_handler; 2172 wmi_handle->ctx = soc->ctx; 2173 wmi_handle->wmi_events = soc->wmi_events; 2174 wmi_target_params_init(soc, wmi_handle); 2175 wmi_handle->scn_handle = scn_handle; 2176 soc->scn_handle = scn_handle; 2177 qdf_atomic_init(&wmi_handle->pending_cmds); 2178 qdf_atomic_init(&wmi_handle->is_target_suspended); 2179 wmi_runtime_pm_init(wmi_handle); 2180 qdf_spinlock_create(&wmi_handle->eventq_lock); 2181 qdf_nbuf_queue_init(&wmi_handle->event_queue); 2182 qdf_create_work(0, &wmi_handle->rx_event_work, 2183 wmi_rx_event_work, wmi_handle); 2184 wmi_handle->wmi_rx_work_queue = 2185 qdf_create_workqueue("wmi_rx_event_work_queue"); 2186 if (NULL == wmi_handle->wmi_rx_work_queue) { 2187 WMI_LOGE("failed to create wmi_rx_event_work_queue"); 2188 goto error; 2189 } 2190 wmi_interface_logging_init(wmi_handle); 2191 /* Attach mc_thread context processing function */ 2192 wmi_handle->rx_ops.wma_process_fw_event_handler_cbk = 2193 param->rx_ops->wma_process_fw_event_handler_cbk; 2194 wmi_handle->target_type = param->target_type; 2195 soc->target_type = param->target_type; 2196 if (wmi_attach_register[param->target_type]) { 2197 wmi_attach_register[param->target_type](wmi_handle); 2198 } else { 2199 WMI_LOGE("wmi attach is not registered"); 2200 goto error; 2201 } 2202 /* Assign target cookie capablity */ 2203 wmi_handle->use_cookie = param->use_cookie; 2204 wmi_handle->osdev = param->osdev; 2205 wmi_handle->wmi_stopinprogress = 0; 2206 wmi_handle->wmi_max_cmds = param->max_commands; 2207 soc->wmi_max_cmds = param->max_commands; 2208 /* Increase the ref count once refcount infra is present */ 2209 soc->wmi_psoc = param->psoc; 2210 qdf_spinlock_create(&soc->ctx_lock); 2211 2212 soc->ops = wmi_handle->ops; 2213 soc->wmi_pdev[0] = wmi_handle; 2214 2215 return wmi_handle; 2216 2217 error: 2218 qdf_mem_free(soc); 2219 qdf_mem_free(wmi_handle); 2220 2221 return NULL; 2222 } 2223 2224 /** 2225 * wmi_unified_detach() - detach for unified WMI 2226 * 2227 * @wmi_handle : handle to wmi. 2228 * 2229 * @Return: none. 2230 */ 2231 void wmi_unified_detach(struct wmi_unified *wmi_handle) 2232 { 2233 wmi_buf_t buf; 2234 struct wmi_soc *soc; 2235 uint8_t i; 2236 2237 soc = wmi_handle->soc; 2238 for (i = 0; i < WMI_MAX_RADIOS; i++) { 2239 if (soc->wmi_pdev[i]) { 2240 qdf_flush_workqueue(0, 2241 soc->wmi_pdev[i]->wmi_rx_work_queue); 2242 qdf_destroy_workqueue(0, 2243 soc->wmi_pdev[i]->wmi_rx_work_queue); 2244 wmi_debugfs_remove(soc->wmi_pdev[i]); 2245 buf = qdf_nbuf_queue_remove( 2246 &soc->wmi_pdev[i]->event_queue); 2247 while (buf) { 2248 qdf_nbuf_free(buf); 2249 buf = qdf_nbuf_queue_remove( 2250 &soc->wmi_pdev[i]->event_queue); 2251 } 2252 2253 wmi_log_buffer_free(soc->wmi_pdev[i]); 2254 2255 /* Free events logs list */ 2256 if (soc->wmi_pdev[i]->events_logs_list) 2257 qdf_mem_free( 2258 soc->wmi_pdev[i]->events_logs_list); 2259 2260 qdf_spinlock_destroy(&soc->wmi_pdev[i]->eventq_lock); 2261 qdf_mem_free(soc->wmi_pdev[i]); 2262 } 2263 } 2264 qdf_spinlock_destroy(&soc->ctx_lock); 2265 2266 if (soc->wmi_service_bitmap) { 2267 qdf_mem_free(soc->wmi_service_bitmap); 2268 soc->wmi_service_bitmap = NULL; 2269 } 2270 2271 if (soc->wmi_ext_service_bitmap) { 2272 qdf_mem_free(soc->wmi_ext_service_bitmap); 2273 soc->wmi_ext_service_bitmap = NULL; 2274 } 2275 2276 /* Decrease the ref count once refcount infra is present */ 2277 soc->wmi_psoc = NULL; 2278 qdf_mem_free(soc); 2279 } 2280 2281 /** 2282 * wmi_unified_remove_work() - detach for WMI work 2283 * @wmi_handle: handle to WMI 2284 * 2285 * A function that does not fully detach WMI, but just remove work 2286 * queue items associated with it. This is used to make sure that 2287 * before any other processing code that may destroy related contexts 2288 * (HTC, etc), work queue processing on WMI has already been stopped. 2289 * 2290 * Return: None 2291 */ 2292 void 2293 wmi_unified_remove_work(struct wmi_unified *wmi_handle) 2294 { 2295 wmi_buf_t buf; 2296 2297 qdf_flush_workqueue(0, wmi_handle->wmi_rx_work_queue); 2298 qdf_spin_lock_bh(&wmi_handle->eventq_lock); 2299 buf = qdf_nbuf_queue_remove(&wmi_handle->event_queue); 2300 while (buf) { 2301 qdf_nbuf_free(buf); 2302 buf = qdf_nbuf_queue_remove(&wmi_handle->event_queue); 2303 } 2304 qdf_spin_unlock_bh(&wmi_handle->eventq_lock); 2305 } 2306 2307 /** 2308 * wmi_htc_tx_complete() - Process htc tx completion 2309 * 2310 * @ctx: handle to wmi 2311 * @htc_packet: pointer to htc packet 2312 * 2313 * @Return: none. 2314 */ 2315 static void wmi_htc_tx_complete(void *ctx, HTC_PACKET *htc_pkt) 2316 { 2317 struct wmi_soc *soc = (struct wmi_soc *) ctx; 2318 wmi_buf_t wmi_cmd_buf = GET_HTC_PACKET_NET_BUF_CONTEXT(htc_pkt); 2319 u_int8_t *buf_ptr; 2320 u_int32_t len; 2321 struct wmi_unified *wmi_handle; 2322 #ifdef WMI_INTERFACE_EVENT_LOGGING 2323 uint32_t cmd_id; 2324 #endif 2325 2326 ASSERT(wmi_cmd_buf); 2327 wmi_handle = wmi_get_pdev_ep(soc, htc_pkt->Endpoint); 2328 if (wmi_handle == NULL) { 2329 WMI_LOGE("%s: Unable to get wmi handle\n", __func__); 2330 QDF_ASSERT(0); 2331 return; 2332 } 2333 #ifdef WMI_INTERFACE_EVENT_LOGGING 2334 if (wmi_handle && wmi_handle->log_info.wmi_logging_enable) { 2335 cmd_id = WMI_GET_FIELD(qdf_nbuf_data(wmi_cmd_buf), 2336 WMI_CMD_HDR, COMMANDID); 2337 2338 qdf_spin_lock_bh(&wmi_handle->log_info.wmi_record_lock); 2339 /* Record 16 bytes of WMI cmd tx complete data 2340 - exclude TLV and WMI headers */ 2341 if (wmi_handle->ops->is_management_record(cmd_id)) { 2342 WMI_MGMT_COMMAND_TX_CMP_RECORD(wmi_handle, cmd_id, 2343 qdf_nbuf_data(wmi_cmd_buf) + 2344 wmi_handle->log_info.buf_offset_command); 2345 } else { 2346 WMI_COMMAND_TX_CMP_RECORD(wmi_handle, cmd_id, 2347 qdf_nbuf_data(wmi_cmd_buf) + 2348 wmi_handle->log_info.buf_offset_command); 2349 } 2350 2351 qdf_spin_unlock_bh(&wmi_handle->log_info.wmi_record_lock); 2352 } 2353 #endif 2354 buf_ptr = (u_int8_t *) wmi_buf_data(wmi_cmd_buf); 2355 len = qdf_nbuf_len(wmi_cmd_buf); 2356 qdf_mem_zero(buf_ptr, len); 2357 qdf_nbuf_free(wmi_cmd_buf); 2358 qdf_mem_free(htc_pkt); 2359 qdf_atomic_dec(&wmi_handle->pending_cmds); 2360 } 2361 2362 /** 2363 * wmi_connect_pdev_htc_service() - WMI API to get connect to HTC service 2364 * 2365 * @wmi_handle: handle to WMI. 2366 * @pdev_idx: Pdev index 2367 * 2368 * @Return: status. 2369 */ 2370 static int wmi_connect_pdev_htc_service(struct wmi_soc *soc, 2371 uint32_t pdev_idx) 2372 { 2373 int status; 2374 struct htc_service_connect_resp response; 2375 struct htc_service_connect_req connect; 2376 2377 OS_MEMZERO(&connect, sizeof(connect)); 2378 OS_MEMZERO(&response, sizeof(response)); 2379 2380 /* meta data is unused for now */ 2381 connect.pMetaData = NULL; 2382 connect.MetaDataLength = 0; 2383 /* these fields are the same for all service endpoints */ 2384 connect.EpCallbacks.pContext = soc; 2385 connect.EpCallbacks.EpTxCompleteMultiple = 2386 NULL /* Control path completion ar6000_tx_complete */; 2387 connect.EpCallbacks.EpRecv = wmi_control_rx /* Control path rx */; 2388 connect.EpCallbacks.EpRecvRefill = NULL /* ar6000_rx_refill */; 2389 connect.EpCallbacks.EpSendFull = NULL /* ar6000_tx_queue_full */; 2390 connect.EpCallbacks.EpTxComplete = 2391 wmi_htc_tx_complete /* ar6000_tx_queue_full */; 2392 2393 /* connect to control service */ 2394 connect.service_id = soc->svc_ids[pdev_idx]; 2395 status = htc_connect_service(soc->htc_handle, &connect, 2396 &response); 2397 2398 2399 if (status != EOK) { 2400 qdf_print 2401 ("Failed to connect to WMI CONTROL service status:%d\n", 2402 status); 2403 return status; 2404 } 2405 2406 soc->wmi_endpoint_id[pdev_idx] = response.Endpoint; 2407 soc->max_msg_len[pdev_idx] = response.MaxMsgLength; 2408 2409 return 0; 2410 } 2411 2412 /** 2413 * wmi_unified_connect_htc_service() - WMI API to get connect to HTC service 2414 * 2415 * @wmi_handle: handle to WMI. 2416 * 2417 * @Return: status. 2418 */ 2419 QDF_STATUS 2420 wmi_unified_connect_htc_service(struct wmi_unified *wmi_handle, 2421 void *htc_handle) 2422 { 2423 uint32_t i; 2424 uint8_t wmi_ep_count; 2425 2426 wmi_handle->soc->htc_handle = htc_handle; 2427 2428 wmi_ep_count = htc_get_wmi_endpoint_count(htc_handle); 2429 if (wmi_ep_count > WMI_MAX_RADIOS) 2430 return QDF_STATUS_E_FAULT; 2431 2432 for (i = 0; i < wmi_ep_count; i++) 2433 wmi_connect_pdev_htc_service(wmi_handle->soc, i); 2434 2435 wmi_handle->htc_handle = htc_handle; 2436 wmi_handle->wmi_endpoint_id = wmi_handle->soc->wmi_endpoint_id[0]; 2437 wmi_handle->max_msg_len = wmi_handle->soc->max_msg_len[0]; 2438 2439 return QDF_STATUS_SUCCESS; 2440 } 2441 2442 /** 2443 * wmi_get_host_credits() - WMI API to get updated host_credits 2444 * 2445 * @wmi_handle: handle to WMI. 2446 * 2447 * @Return: updated host_credits. 2448 */ 2449 int wmi_get_host_credits(wmi_unified_t wmi_handle) 2450 { 2451 int host_credits = 0; 2452 2453 htc_get_control_endpoint_tx_host_credits(wmi_handle->htc_handle, 2454 &host_credits); 2455 return host_credits; 2456 } 2457 2458 /** 2459 * wmi_get_pending_cmds() - WMI API to get WMI Pending Commands in the HTC 2460 * queue 2461 * 2462 * @wmi_handle: handle to WMI. 2463 * 2464 * @Return: Pending Commands in the HTC queue. 2465 */ 2466 int wmi_get_pending_cmds(wmi_unified_t wmi_handle) 2467 { 2468 return qdf_atomic_read(&wmi_handle->pending_cmds); 2469 } 2470 2471 /** 2472 * wmi_set_target_suspend() - WMI API to set target suspend state 2473 * 2474 * @wmi_handle: handle to WMI. 2475 * @val: suspend state boolean. 2476 * 2477 * @Return: none. 2478 */ 2479 void wmi_set_target_suspend(wmi_unified_t wmi_handle, A_BOOL val) 2480 { 2481 qdf_atomic_set(&wmi_handle->is_target_suspended, val); 2482 } 2483 2484 /** 2485 * WMI API to set crash injection state 2486 * @param wmi_handle: handle to WMI. 2487 * @param val: crash injection state boolean. 2488 */ 2489 void wmi_tag_crash_inject(wmi_unified_t wmi_handle, A_BOOL flag) 2490 { 2491 wmi_handle->tag_crash_inject = flag; 2492 } 2493 2494 /** 2495 * WMI API to set bus suspend state 2496 * @param wmi_handle: handle to WMI. 2497 * @param val: suspend state boolean. 2498 */ 2499 void wmi_set_is_wow_bus_suspended(wmi_unified_t wmi_handle, A_BOOL val) 2500 { 2501 qdf_atomic_set(&wmi_handle->is_wow_bus_suspended, val); 2502 } 2503 2504 void wmi_set_tgt_assert(wmi_unified_t wmi_handle, bool val) 2505 { 2506 wmi_handle->tgt_force_assert_enable = val; 2507 } 2508 2509 /** 2510 * wmi_stop() - generic function to block unified WMI command 2511 * @wmi_handle: handle to WMI. 2512 * 2513 * @Return: success always. 2514 */ 2515 int 2516 wmi_stop(wmi_unified_t wmi_handle) 2517 { 2518 QDF_TRACE(QDF_MODULE_ID_WMI, QDF_TRACE_LEVEL_INFO, 2519 "WMI Stop\n"); 2520 wmi_handle->wmi_stopinprogress = 1; 2521 return 0; 2522 } 2523 2524 #ifndef CONFIG_MCL 2525 /** 2526 * API to flush all the previous packets associated with the wmi endpoint 2527 * 2528 * @param wmi_handle : handle to WMI. 2529 */ 2530 void 2531 wmi_flush_endpoint(wmi_unified_t wmi_handle) 2532 { 2533 htc_flush_endpoint(wmi_handle->htc_handle, 2534 wmi_handle->wmi_endpoint_id, 0); 2535 } 2536 qdf_export_symbol(wmi_flush_endpoint); 2537 2538 /** 2539 * wmi_pdev_id_conversion_enable() - API to enable pdev_id conversion in WMI 2540 * By default pdev_id conversion is not done in WMI. 2541 * This API can be used enable conversion in WMI. 2542 * @param wmi_handle : handle to WMI 2543 * Return none 2544 */ 2545 void wmi_pdev_id_conversion_enable(wmi_unified_t wmi_handle) 2546 { 2547 if (wmi_handle->target_type == WMI_TLV_TARGET) 2548 wmi_handle->ops->wmi_pdev_id_conversion_enable(wmi_handle); 2549 } 2550 2551 #endif 2552