Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 1 | /* |
Houston Hoffman | 47e387b | 2015-10-20 17:04:42 -0700 | [diff] [blame] | 2 | * Copyright (c) 2013-2016 The Linux Foundation. All rights reserved. |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 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 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 28 | #include "htc_debug.h" |
| 29 | #include "htc_internal.h" |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 30 | #include <hif.h> |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 31 | #include <qdf_nbuf.h> /* qdf_nbuf_t */ |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 32 | #include <qdf_types.h> /* qdf_print */ |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 33 | |
| 34 | #ifdef DEBUG |
| 35 | static ATH_DEBUG_MASK_DESCRIPTION g_htc_debug_description[] = { |
| 36 | {ATH_DEBUG_SEND, "Send"}, |
| 37 | {ATH_DEBUG_RECV, "Recv"}, |
| 38 | {ATH_DEBUG_SYNC, "Sync"}, |
| 39 | {ATH_DEBUG_DUMP, "Dump Data (RX or TX)"}, |
| 40 | {ATH_DEBUG_SETUP, "Setup"}, |
| 41 | }; |
| 42 | |
| 43 | ATH_DEBUG_INSTANTIATE_MODULE_VAR(htc, |
| 44 | "htc", |
| 45 | "Host Target Communications", |
| 46 | ATH_DEBUG_MASK_DEFAULTS | ATH_DEBUG_INFO | |
| 47 | ATH_DEBUG_SETUP, |
| 48 | ATH_DEBUG_DESCRIPTION_COUNT |
| 49 | (g_htc_debug_description), |
| 50 | g_htc_debug_description); |
| 51 | |
| 52 | #endif |
| 53 | |
| 54 | extern unsigned int htc_credit_flow; |
| 55 | |
| 56 | static void reset_endpoint_states(HTC_TARGET *target); |
| 57 | |
| 58 | static void destroy_htc_tx_ctrl_packet(HTC_PACKET *pPacket) |
| 59 | { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 60 | qdf_nbuf_t netbuf; |
| 61 | netbuf = (qdf_nbuf_t) GET_HTC_PACKET_NET_BUF_CONTEXT(pPacket); |
| 62 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("free ctrl netbuf :0x%p\n", netbuf)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 63 | if (netbuf != NULL) { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 64 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 65 | } |
| 66 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 67 | qdf_mem_free(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 68 | } |
| 69 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 70 | static HTC_PACKET *build_htc_tx_ctrl_packet(qdf_device_t osdev) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 71 | { |
| 72 | HTC_PACKET *pPacket = NULL; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 73 | qdf_nbuf_t netbuf; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 74 | |
| 75 | do { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 76 | pPacket = (HTC_PACKET *) qdf_mem_malloc(sizeof(HTC_PACKET)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 77 | if (NULL == pPacket) { |
| 78 | break; |
| 79 | } |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 80 | qdf_mem_zero(pPacket, sizeof(HTC_PACKET)); |
| 81 | netbuf = qdf_nbuf_alloc(osdev, HTC_CONTROL_BUFFER_SIZE, |
| 82 | 20, 4, true); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 83 | if (NULL == netbuf) { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 84 | qdf_mem_free(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 85 | pPacket = NULL; |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 86 | qdf_print("%s: nbuf alloc failed\n", __func__); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 87 | break; |
| 88 | } |
| 89 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, |
| 90 | ("alloc ctrl netbuf :0x%p \n", netbuf)); |
| 91 | SET_HTC_PACKET_NET_BUF_CONTEXT(pPacket, netbuf); |
| 92 | } while (false); |
| 93 | |
| 94 | return pPacket; |
| 95 | } |
| 96 | |
| 97 | void htc_free_control_tx_packet(HTC_TARGET *target, HTC_PACKET *pPacket) |
| 98 | { |
| 99 | |
| 100 | #ifdef TODO_FIXME |
| 101 | LOCK_HTC(target); |
| 102 | HTC_PACKET_ENQUEUE(&target->ControlBufferTXFreeList, pPacket); |
| 103 | UNLOCK_HTC(target); |
| 104 | /* TODO_FIXME netbufs cannot be RESET! */ |
| 105 | #else |
| 106 | destroy_htc_tx_ctrl_packet(pPacket); |
| 107 | #endif |
| 108 | |
| 109 | } |
| 110 | |
| 111 | HTC_PACKET *htc_alloc_control_tx_packet(HTC_TARGET *target) |
| 112 | { |
| 113 | #ifdef TODO_FIXME |
| 114 | HTC_PACKET *pPacket; |
| 115 | |
| 116 | LOCK_HTC(target); |
| 117 | pPacket = htc_packet_dequeue(&target->ControlBufferTXFreeList); |
| 118 | UNLOCK_HTC(target); |
| 119 | |
| 120 | return pPacket; |
| 121 | #else |
| 122 | return build_htc_tx_ctrl_packet(target->osdev); |
| 123 | #endif |
| 124 | } |
| 125 | |
| 126 | /* Set the target failure handling callback */ |
| 127 | void htc_set_target_failure_callback(HTC_HANDLE HTCHandle, |
| 128 | HTC_TARGET_FAILURE Callback) |
| 129 | { |
| 130 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 131 | target->HTCInitInfo.TargetFailure = Callback; |
| 132 | } |
| 133 | |
| 134 | void htc_dump(HTC_HANDLE HTCHandle, uint8_t CmdId, bool start) |
| 135 | { |
| 136 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 137 | hif_dump(target->hif_dev, CmdId, start); |
| 138 | } |
| 139 | |
| 140 | /* cleanup the HTC instance */ |
| 141 | static void htc_cleanup(HTC_TARGET *target) |
| 142 | { |
| 143 | HTC_PACKET *pPacket; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 144 | /* qdf_nbuf_t netbuf; */ |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 145 | |
| 146 | if (target->hif_dev != NULL) { |
| 147 | hif_detach_htc(target->hif_dev); |
| 148 | target->hif_dev = NULL; |
| 149 | } |
| 150 | |
| 151 | while (true) { |
| 152 | pPacket = allocate_htc_packet_container(target); |
| 153 | if (NULL == pPacket) { |
| 154 | break; |
| 155 | } |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 156 | qdf_mem_free(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | pPacket = target->pBundleFreeList; |
| 160 | while (pPacket) { |
| 161 | HTC_PACKET *pPacketTmp = (HTC_PACKET *) pPacket->ListLink.pNext; |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 162 | qdf_mem_free(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 163 | pPacket = pPacketTmp; |
| 164 | } |
| 165 | #ifdef TODO_FIXME |
| 166 | while (true) { |
| 167 | pPacket = htc_alloc_control_tx_packet(target); |
| 168 | if (NULL == pPacket) { |
| 169 | break; |
| 170 | } |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 171 | netbuf = (qdf_nbuf_t) GET_HTC_PACKET_NET_BUF_CONTEXT(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 172 | if (netbuf != NULL) { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 173 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 174 | } |
| 175 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 176 | qdf_mem_free(pPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 177 | } |
| 178 | #endif |
| 179 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 180 | qdf_spinlock_destroy(&target->HTCLock); |
| 181 | qdf_spinlock_destroy(&target->HTCRxLock); |
| 182 | qdf_spinlock_destroy(&target->HTCTxLock); |
| 183 | qdf_spinlock_destroy(&target->HTCCreditLock); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 184 | |
| 185 | /* free our instance */ |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 186 | qdf_mem_free(target); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 187 | } |
| 188 | |
Yue Ma | ec9e71c | 2016-02-26 18:52:20 -0800 | [diff] [blame] | 189 | #ifdef FEATURE_RUNTIME_PM |
| 190 | /** |
| 191 | * htc_runtime_pm_init(): runtime pm related intialization |
| 192 | * |
| 193 | * need to initialize a work item. |
| 194 | */ |
| 195 | static void htc_runtime_pm_init(HTC_TARGET *target) |
| 196 | { |
| 197 | qdf_create_work(0, &target->queue_kicker, htc_kick_queues, target); |
| 198 | } |
| 199 | |
| 200 | /** |
| 201 | * htc_runtime_suspend() - runtime suspend HTC |
| 202 | * |
| 203 | * @htc_ctx: HTC context pointer |
| 204 | * |
| 205 | * This is a dummy function for symmetry. |
| 206 | * |
| 207 | * Return: 0 for success |
| 208 | */ |
| 209 | int htc_runtime_suspend(HTC_HANDLE htc_ctx) |
| 210 | { |
| 211 | return 0; |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * htc_runtime_resume(): resume htc |
| 216 | * |
| 217 | * The htc message queue needs to be kicked off after |
| 218 | * a runtime resume. Otherwise messages would get stuck. |
| 219 | * |
| 220 | * @htc_ctx: HTC context pointer |
| 221 | * |
| 222 | * Return: 0 for success; |
| 223 | */ |
| 224 | int htc_runtime_resume(HTC_HANDLE htc_ctx) |
| 225 | { |
| 226 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_ctx); |
| 227 | |
| 228 | if (target == NULL) |
| 229 | return 0; |
| 230 | |
| 231 | qdf_sched_work(0, &target->queue_kicker); |
| 232 | return 0; |
| 233 | } |
| 234 | #else |
| 235 | static inline void htc_runtime_pm_init(HTC_TARGET *target) { } |
| 236 | #endif |
| 237 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 238 | /* registered target arrival callback from the HIF layer */ |
Yue Ma | ec9e71c | 2016-02-26 18:52:20 -0800 | [diff] [blame] | 239 | HTC_HANDLE htc_create(void *ol_sc, HTC_INIT_INFO *pInfo, qdf_device_t osdev, |
| 240 | uint32_t con_mode) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 241 | { |
| 242 | struct hif_msg_callbacks htcCallbacks; |
| 243 | HTC_ENDPOINT *pEndpoint = NULL; |
| 244 | HTC_TARGET *target = NULL; |
| 245 | int i; |
| 246 | |
| 247 | if (ol_sc == NULL) { |
| 248 | HTC_ERROR("%s: ol_sc = NULL", __func__); |
| 249 | return NULL; |
| 250 | } |
| 251 | HTC_TRACE("+htc_create .. HIF :%p", ol_sc); |
| 252 | |
| 253 | A_REGISTER_MODULE_DEBUG_INFO(htc); |
| 254 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 255 | target = (HTC_TARGET *) qdf_mem_malloc(sizeof(HTC_TARGET)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 256 | if (target == NULL) { |
| 257 | HTC_ERROR("%s: Unable to allocate memory", __func__); |
| 258 | return NULL; |
| 259 | } |
| 260 | |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 261 | qdf_mem_zero(target, sizeof(HTC_TARGET)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 262 | |
Houston Hoffman | 47e387b | 2015-10-20 17:04:42 -0700 | [diff] [blame] | 263 | htc_runtime_pm_init(target); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 264 | qdf_spinlock_create(&target->HTCLock); |
| 265 | qdf_spinlock_create(&target->HTCRxLock); |
| 266 | qdf_spinlock_create(&target->HTCTxLock); |
| 267 | qdf_spinlock_create(&target->HTCCreditLock); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 268 | |
| 269 | do { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 270 | qdf_mem_copy(&target->HTCInitInfo, pInfo, |
| 271 | sizeof(HTC_INIT_INFO)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 272 | target->host_handle = pInfo->pContext; |
| 273 | target->osdev = osdev; |
Yue Ma | ec9e71c | 2016-02-26 18:52:20 -0800 | [diff] [blame] | 274 | target->con_mode = con_mode; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 275 | |
| 276 | reset_endpoint_states(target); |
| 277 | |
| 278 | INIT_HTC_PACKET_QUEUE(&target->ControlBufferTXFreeList); |
| 279 | |
| 280 | for (i = 0; i < HTC_PACKET_CONTAINER_ALLOCATION; i++) { |
| 281 | HTC_PACKET *pPacket = |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 282 | (HTC_PACKET *) qdf_mem_malloc(sizeof(HTC_PACKET)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 283 | if (pPacket != NULL) { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 284 | qdf_mem_zero(pPacket, sizeof(HTC_PACKET)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 285 | free_htc_packet_container(target, pPacket); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | #ifdef TODO_FIXME |
| 290 | for (i = 0; i < NUM_CONTROL_TX_BUFFERS; i++) { |
| 291 | pPacket = build_htc_tx_ctrl_packet(); |
| 292 | if (NULL == pPacket) { |
| 293 | break; |
| 294 | } |
| 295 | htc_free_control_tx_packet(target, pPacket); |
| 296 | } |
| 297 | #endif |
| 298 | |
| 299 | /* setup HIF layer callbacks */ |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 300 | qdf_mem_zero(&htcCallbacks, sizeof(struct hif_msg_callbacks)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 301 | htcCallbacks.Context = target; |
| 302 | htcCallbacks.rxCompletionHandler = htc_rx_completion_handler; |
| 303 | htcCallbacks.txCompletionHandler = htc_tx_completion_handler; |
| 304 | htcCallbacks.txResourceAvailHandler = htc_tx_resource_avail_handler; |
| 305 | htcCallbacks.fwEventHandler = htc_fw_event_handler; |
| 306 | target->hif_dev = ol_sc; |
| 307 | |
| 308 | /* Get HIF default pipe for HTC message exchange */ |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 309 | pEndpoint = &target->endpoint[ENDPOINT_0]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 310 | |
| 311 | hif_post_init(target->hif_dev, target, &htcCallbacks); |
| 312 | hif_get_default_pipe(target->hif_dev, &pEndpoint->UL_PipeID, |
| 313 | &pEndpoint->DL_PipeID); |
| 314 | |
| 315 | } while (false); |
| 316 | |
| 317 | htc_recv_init(target); |
| 318 | |
| 319 | HTC_TRACE("-htc_create: (0x%p)", target); |
| 320 | |
| 321 | return (HTC_HANDLE) target; |
| 322 | } |
| 323 | |
| 324 | void htc_destroy(HTC_HANDLE HTCHandle) |
| 325 | { |
| 326 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 327 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, |
| 328 | ("+htc_destroy .. Destroying :0x%p\n", target)); |
Karthick S | c3a7a0c | 2015-10-14 17:56:55 +0530 | [diff] [blame] | 329 | hif_stop(htc_get_hif_device(HTCHandle)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 330 | if (target) |
| 331 | htc_cleanup(target); |
| 332 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-htc_destroy\n")); |
| 333 | } |
| 334 | |
| 335 | /* get the low level HIF device for the caller , the caller may wish to do low level |
| 336 | * HIF requests */ |
| 337 | void *htc_get_hif_device(HTC_HANDLE HTCHandle) |
| 338 | { |
| 339 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 340 | return target->hif_dev; |
| 341 | } |
| 342 | |
| 343 | void htc_control_tx_complete(void *Context, HTC_PACKET *pPacket) |
| 344 | { |
| 345 | HTC_TARGET *target = (HTC_TARGET *) Context; |
| 346 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, |
| 347 | ("+-htc_control_tx_complete 0x%p (l:%d) \n", pPacket, |
| 348 | pPacket->ActualLength)); |
| 349 | htc_free_control_tx_packet(target, pPacket); |
| 350 | } |
| 351 | |
| 352 | /* TODO, this is just a temporary max packet size */ |
| 353 | #define MAX_MESSAGE_SIZE 1536 |
| 354 | |
| 355 | /** |
| 356 | * htc_setup_target_buffer_assignments() - setup target buffer assignments |
| 357 | * @target: HTC Target Pointer |
| 358 | * |
| 359 | * Return: A_STATUS |
| 360 | */ |
| 361 | A_STATUS htc_setup_target_buffer_assignments(HTC_TARGET *target) |
| 362 | { |
| 363 | HTC_SERVICE_TX_CREDIT_ALLOCATION *pEntry; |
| 364 | A_STATUS status; |
| 365 | int credits; |
| 366 | int creditsPerMaxMsg; |
| 367 | |
| 368 | creditsPerMaxMsg = MAX_MESSAGE_SIZE / target->TargetCreditSize; |
| 369 | if (MAX_MESSAGE_SIZE % target->TargetCreditSize) { |
| 370 | creditsPerMaxMsg++; |
| 371 | } |
| 372 | |
| 373 | /* TODO, this should be configured by the caller! */ |
| 374 | |
| 375 | credits = target->TotalTransmitCredits; |
| 376 | pEntry = &target->ServiceTxAllocTable[0]; |
| 377 | |
| 378 | /* |
| 379 | * Allocate all credists/HTC buffers to WMI. |
| 380 | * no buffers are used/required for data. data always |
| 381 | * remains on host. |
| 382 | */ |
| 383 | status = A_OK; |
| 384 | pEntry++; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 385 | pEntry->service_id = WMI_CONTROL_SVC; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 386 | pEntry->CreditAllocation = credits; |
| 387 | |
Yue Ma | ec9e71c | 2016-02-26 18:52:20 -0800 | [diff] [blame] | 388 | if (HTC_IS_EPPING_ENABLED(target->con_mode)) { |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 389 | /* endpoint ping is a testing tool directly on top of HTC in |
| 390 | * both target and host sides. |
| 391 | * In target side, the endppint ping fw has no wlan stack and the |
| 392 | * FW mboxping app directly sits on HTC and it simply drops |
| 393 | * or loops back TX packets. For rx perf, FW mboxping app |
| 394 | * generates packets and passes packets to HTC to send to host. |
| 395 | * There is no WMI mesage exchanges between host and target |
| 396 | * in endpoint ping case. |
| 397 | * In host side, the endpoint ping driver is a Ethernet driver |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 398 | * and it directly sits on HTC. Only HIF, HTC, QDF, ADF are |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 399 | * used by the endpoint ping driver. There is no wifi stack |
| 400 | * at all in host side also. For tx perf use case, |
| 401 | * the user space mboxping app sends the raw packets to endpoint |
| 402 | * ping driver and it directly forwards to HTC for transmission |
| 403 | * to stress the bus. For the rx perf, HTC passes the received |
| 404 | * packets to endpoint ping driver and it is passed to the user |
| 405 | * space through the Ethernet interface. |
| 406 | * For credit allocation, in SDIO bus case, only BE service is |
| 407 | * used for tx/rx perf testing so that all credits are given |
| 408 | * to BE service. In PCIe and USB bus case, endpoint ping uses both |
| 409 | * BE and BK services to stress the bus so that the total credits |
| 410 | * are equally distributed to BE and BK services. |
| 411 | */ |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 412 | pEntry->service_id = WMI_DATA_BE_SVC; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 413 | pEntry->CreditAllocation = (credits >> 1); |
| 414 | |
| 415 | pEntry++; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 416 | pEntry->service_id = WMI_DATA_BK_SVC; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 417 | pEntry->CreditAllocation = (credits >> 1); |
| 418 | } |
| 419 | |
| 420 | if (A_SUCCESS(status)) { |
| 421 | int i; |
| 422 | for (i = 0; i < HTC_MAX_SERVICE_ALLOC_ENTRIES; i++) { |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 423 | if (target->ServiceTxAllocTable[i].service_id != 0) { |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 424 | AR_DEBUG_PRINTF(ATH_DEBUG_INIT, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 425 | ("HTC Service Index : %d TX : 0x%2.2X : alloc:%d\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 426 | i, |
| 427 | target->ServiceTxAllocTable[i]. |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 428 | service_id, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 429 | target->ServiceTxAllocTable[i]. |
| 430 | CreditAllocation)); |
| 431 | } |
| 432 | } |
| 433 | } |
| 434 | |
| 435 | return status; |
| 436 | } |
| 437 | |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 438 | uint8_t htc_get_credit_allocation(HTC_TARGET *target, uint16_t service_id) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 439 | { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 440 | uint8_t allocation = 0; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 441 | int i; |
| 442 | |
| 443 | for (i = 0; i < HTC_MAX_SERVICE_ALLOC_ENTRIES; i++) { |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 444 | if (target->ServiceTxAllocTable[i].service_id == service_id) { |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 445 | allocation = |
| 446 | target->ServiceTxAllocTable[i].CreditAllocation; |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | if (0 == allocation) { |
| 451 | AR_DEBUG_PRINTF(ATH_DEBUG_INIT, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 452 | ("HTC Service TX : 0x%2.2X : allocation is zero!\n", |
| 453 | service_id)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 454 | } |
| 455 | |
| 456 | return allocation; |
| 457 | } |
| 458 | |
| 459 | A_STATUS htc_wait_target(HTC_HANDLE HTCHandle) |
| 460 | { |
| 461 | A_STATUS status = A_OK; |
| 462 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 463 | HTC_READY_EX_MSG *pReadyMsg; |
| 464 | HTC_SERVICE_CONNECT_REQ connect; |
| 465 | HTC_SERVICE_CONNECT_RESP resp; |
| 466 | HTC_READY_MSG *rdy_msg; |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 467 | uint16_t htc_rdy_msg_id; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 468 | |
| 469 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, |
| 470 | ("htc_wait_target - Enter (target:0x%p) \n", HTCHandle)); |
| 471 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, ("+HWT\n")); |
| 472 | |
| 473 | do { |
| 474 | |
| 475 | status = hif_start(target->hif_dev); |
| 476 | if (A_FAILED(status)) { |
| 477 | AR_DEBUG_PRINTF(ATH_DEBUG_ERROR, ("hif_start failed\n")); |
| 478 | break; |
| 479 | } |
| 480 | |
| 481 | status = htc_wait_recv_ctrl_message(target); |
| 482 | |
| 483 | if (A_FAILED(status)) { |
| 484 | break; |
| 485 | } |
| 486 | |
| 487 | if (target->CtrlResponseLength < (sizeof(HTC_READY_EX_MSG))) { |
| 488 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 489 | ("Invalid HTC Ready Msg Len:%d! \n", |
| 490 | target->CtrlResponseLength)); |
| 491 | status = A_ECOMM; |
| 492 | break; |
| 493 | } |
| 494 | |
| 495 | pReadyMsg = (HTC_READY_EX_MSG *) target->CtrlResponseBuffer; |
| 496 | |
| 497 | rdy_msg = &pReadyMsg->Version2_0_Info; |
| 498 | htc_rdy_msg_id = |
| 499 | HTC_GET_FIELD(rdy_msg, HTC_READY_MSG, MESSAGEID); |
| 500 | if (htc_rdy_msg_id != HTC_MSG_READY_ID) { |
| 501 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 502 | ("Invalid HTC Ready Msg : 0x%X ! \n", |
| 503 | htc_rdy_msg_id)); |
| 504 | status = A_ECOMM; |
| 505 | break; |
| 506 | } |
| 507 | |
| 508 | target->TotalTransmitCredits = |
| 509 | HTC_GET_FIELD(rdy_msg, HTC_READY_MSG, CREDITCOUNT); |
| 510 | target->TargetCreditSize = |
| 511 | (int)HTC_GET_FIELD(rdy_msg, HTC_READY_MSG, CREDITSIZE); |
| 512 | target->MaxMsgsPerHTCBundle = |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 513 | (uint8_t) pReadyMsg->MaxMsgsPerHTCBundle; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 514 | /* for old fw this value is set to 0. But the minimum value should be 1, |
| 515 | * i.e., no bundling */ |
| 516 | if (target->MaxMsgsPerHTCBundle < 1) |
| 517 | target->MaxMsgsPerHTCBundle = 1; |
| 518 | |
| 519 | AR_DEBUG_PRINTF(ATH_DEBUG_INIT, |
| 520 | ("Target Ready! : transmit resources : %d size:%d, MaxMsgsPerHTCBundle = %d\n", |
| 521 | target->TotalTransmitCredits, |
| 522 | target->TargetCreditSize, |
| 523 | target->MaxMsgsPerHTCBundle)); |
| 524 | |
| 525 | if ((0 == target->TotalTransmitCredits) |
| 526 | || (0 == target->TargetCreditSize)) { |
| 527 | status = A_ECOMM; |
| 528 | break; |
| 529 | } |
| 530 | /* done processing */ |
| 531 | target->CtrlResponseProcessing = false; |
| 532 | |
| 533 | htc_setup_target_buffer_assignments(target); |
| 534 | |
| 535 | /* setup our pseudo HTC control endpoint connection */ |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 536 | qdf_mem_zero(&connect, sizeof(connect)); |
| 537 | qdf_mem_zero(&resp, sizeof(resp)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 538 | connect.EpCallbacks.pContext = target; |
| 539 | connect.EpCallbacks.EpTxComplete = htc_control_tx_complete; |
| 540 | connect.EpCallbacks.EpRecv = htc_control_rx_complete; |
| 541 | connect.MaxSendQueueDepth = NUM_CONTROL_TX_BUFFERS; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 542 | connect.service_id = HTC_CTRL_RSVD_SVC; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 543 | |
| 544 | /* connect fake service */ |
| 545 | status = htc_connect_service((HTC_HANDLE) target, |
| 546 | &connect, &resp); |
| 547 | |
| 548 | } while (false); |
| 549 | |
| 550 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("htc_wait_target - Exit (%d)\n", status)); |
| 551 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, ("-HWT\n")); |
| 552 | return status; |
| 553 | } |
| 554 | |
| 555 | /* start HTC, this is called after all services are connected */ |
| 556 | static A_STATUS htc_config_target_hif_pipe(HTC_TARGET *target) |
| 557 | { |
| 558 | |
| 559 | return A_OK; |
| 560 | } |
| 561 | |
| 562 | static void reset_endpoint_states(HTC_TARGET *target) |
| 563 | { |
| 564 | HTC_ENDPOINT *pEndpoint; |
| 565 | int i; |
| 566 | |
| 567 | for (i = ENDPOINT_0; i < ENDPOINT_MAX; i++) { |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 568 | pEndpoint = &target->endpoint[i]; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 569 | pEndpoint->service_id = 0; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 570 | pEndpoint->MaxMsgLength = 0; |
| 571 | pEndpoint->MaxTxQueueDepth = 0; |
| 572 | pEndpoint->Id = i; |
| 573 | INIT_HTC_PACKET_QUEUE(&pEndpoint->TxQueue); |
| 574 | INIT_HTC_PACKET_QUEUE(&pEndpoint->TxLookupQueue); |
| 575 | INIT_HTC_PACKET_QUEUE(&pEndpoint->RxBufferHoldQueue); |
| 576 | pEndpoint->target = target; |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 577 | pEndpoint->TxCreditFlowEnabled = (bool)htc_credit_flow; |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 578 | qdf_atomic_init(&pEndpoint->TxProcessCount); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 579 | } |
| 580 | } |
| 581 | |
| 582 | A_STATUS htc_start(HTC_HANDLE HTCHandle) |
| 583 | { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 584 | qdf_nbuf_t netbuf; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 585 | A_STATUS status = A_OK; |
| 586 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 587 | HTC_SETUP_COMPLETE_EX_MSG *pSetupComp; |
| 588 | HTC_PACKET *pSendPacket; |
| 589 | |
| 590 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("htc_start Enter\n")); |
| 591 | |
| 592 | do { |
| 593 | |
| 594 | htc_config_target_hif_pipe(target); |
| 595 | |
| 596 | /* allocate a buffer to send */ |
| 597 | pSendPacket = htc_alloc_control_tx_packet(target); |
| 598 | if (NULL == pSendPacket) { |
| 599 | AR_DEBUG_ASSERT(false); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 600 | qdf_print("%s: allocControlTxPacket failed\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 601 | __func__); |
| 602 | status = A_NO_MEMORY; |
| 603 | break; |
| 604 | } |
| 605 | |
| 606 | netbuf = |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 607 | (qdf_nbuf_t) GET_HTC_PACKET_NET_BUF_CONTEXT(pSendPacket); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 608 | /* assemble setup complete message */ |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 609 | qdf_nbuf_put_tail(netbuf, sizeof(HTC_SETUP_COMPLETE_EX_MSG)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 610 | pSetupComp = |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 611 | (HTC_SETUP_COMPLETE_EX_MSG *) qdf_nbuf_data(netbuf); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 612 | qdf_mem_zero(pSetupComp, sizeof(HTC_SETUP_COMPLETE_EX_MSG)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 613 | |
| 614 | HTC_SET_FIELD(pSetupComp, HTC_SETUP_COMPLETE_EX_MSG, |
| 615 | MESSAGEID, HTC_MSG_SETUP_COMPLETE_EX_ID); |
| 616 | |
| 617 | if (!htc_credit_flow) { |
| 618 | AR_DEBUG_PRINTF(ATH_DEBUG_INIT, |
| 619 | ("HTC will not use TX credit flow control\n")); |
| 620 | pSetupComp->SetupFlags |= |
| 621 | HTC_SETUP_COMPLETE_FLAGS_DISABLE_TX_CREDIT_FLOW; |
| 622 | } else { |
| 623 | AR_DEBUG_PRINTF(ATH_DEBUG_INIT, |
| 624 | ("HTC using TX credit flow control\n")); |
| 625 | } |
| 626 | |
| 627 | #ifdef HIF_SDIO |
| 628 | #if ENABLE_BUNDLE_RX |
| 629 | if (HTC_ENABLE_BUNDLE(target)) |
| 630 | pSetupComp->SetupFlags |= |
| 631 | HTC_SETUP_COMPLETE_FLAGS_ENABLE_BUNDLE_RECV; |
| 632 | #endif /* ENABLE_BUNDLE_RX */ |
| 633 | #endif /* HIF_SDIO */ |
| 634 | |
| 635 | SET_HTC_PACKET_INFO_TX(pSendPacket, |
| 636 | NULL, |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 637 | (uint8_t *) pSetupComp, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 638 | sizeof(HTC_SETUP_COMPLETE_EX_MSG), |
| 639 | ENDPOINT_0, HTC_SERVICE_TX_PACKET_TAG); |
| 640 | |
| 641 | status = htc_send_pkt((HTC_HANDLE) target, pSendPacket); |
| 642 | if (A_FAILED(status)) { |
| 643 | break; |
| 644 | } |
| 645 | |
| 646 | } while (false); |
| 647 | |
| 648 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("htc_start Exit\n")); |
| 649 | return status; |
| 650 | } |
| 651 | |
| 652 | /*flush all queued buffers for surpriseremove case*/ |
| 653 | void htc_flush_surprise_remove(HTC_HANDLE HTCHandle) |
| 654 | { |
| 655 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 656 | int i; |
| 657 | HTC_ENDPOINT *pEndpoint; |
| 658 | #ifdef RX_SG_SUPPORT |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 659 | qdf_nbuf_t netbuf; |
| 660 | qdf_nbuf_queue_t *rx_sg_queue = &target->RxSgQueue; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 661 | #endif |
| 662 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 663 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("+htc_flush_surprise_remove\n")); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 664 | |
| 665 | /* cleanup endpoints */ |
| 666 | for (i = 0; i < ENDPOINT_MAX; i++) { |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 667 | pEndpoint = &target->endpoint[i]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 668 | htc_flush_rx_hold_queue(target, pEndpoint); |
| 669 | htc_flush_endpoint_tx(target, pEndpoint, HTC_TX_PACKET_TAG_ALL); |
| 670 | } |
| 671 | |
| 672 | hif_flush_surprise_remove(target->hif_dev); |
| 673 | |
| 674 | #ifdef RX_SG_SUPPORT |
| 675 | LOCK_HTC_RX(target); |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 676 | while ((netbuf = qdf_nbuf_queue_remove(rx_sg_queue)) != NULL) |
| 677 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 678 | RESET_RX_SG_CONFIG(target); |
| 679 | UNLOCK_HTC_RX(target); |
| 680 | #endif |
| 681 | |
| 682 | reset_endpoint_states(target); |
| 683 | |
| 684 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-htc_flush_surprise_remove \n")); |
| 685 | } |
| 686 | |
| 687 | /* stop HTC communications, i.e. stop interrupt reception, and flush all queued buffers */ |
| 688 | void htc_stop(HTC_HANDLE HTCHandle) |
| 689 | { |
| 690 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 691 | int i; |
| 692 | HTC_ENDPOINT *pEndpoint; |
| 693 | #ifdef RX_SG_SUPPORT |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 694 | qdf_nbuf_t netbuf; |
| 695 | qdf_nbuf_queue_t *rx_sg_queue = &target->RxSgQueue; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 696 | #endif |
| 697 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 698 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("+htc_stop\n")); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 699 | |
| 700 | /* cleanup endpoints */ |
| 701 | for (i = 0; i < ENDPOINT_MAX; i++) { |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 702 | pEndpoint = &target->endpoint[i]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 703 | htc_flush_rx_hold_queue(target, pEndpoint); |
| 704 | htc_flush_endpoint_tx(target, pEndpoint, HTC_TX_PACKET_TAG_ALL); |
| 705 | if (pEndpoint->ul_is_polled) { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 706 | qdf_timer_stop(&pEndpoint->ul_poll_timer); |
| 707 | qdf_timer_free(&pEndpoint->ul_poll_timer); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 708 | } |
| 709 | } |
| 710 | |
| 711 | /* Note: htc_flush_endpoint_tx for all endpoints should be called before |
| 712 | * hif_stop - otherwise htc_tx_completion_handler called from |
| 713 | * hif_send_buffer_cleanup_on_pipe for residual tx frames in HIF layer, |
| 714 | * might queue the packet again to HIF Layer - which could cause tx |
| 715 | * buffer leak |
| 716 | */ |
| 717 | |
| 718 | hif_stop(target->hif_dev); |
| 719 | |
| 720 | #ifdef RX_SG_SUPPORT |
| 721 | LOCK_HTC_RX(target); |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 722 | while ((netbuf = qdf_nbuf_queue_remove(rx_sg_queue)) != NULL) |
| 723 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 724 | RESET_RX_SG_CONFIG(target); |
| 725 | UNLOCK_HTC_RX(target); |
| 726 | #endif |
| 727 | |
| 728 | reset_endpoint_states(target); |
| 729 | |
Houston Hoffman | 47e387b | 2015-10-20 17:04:42 -0700 | [diff] [blame] | 730 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-htc_stop\n")); |
| 731 | } |
| 732 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 733 | void htc_dump_credit_states(HTC_HANDLE HTCHandle) |
| 734 | { |
| 735 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 736 | HTC_ENDPOINT *pEndpoint; |
| 737 | int i; |
| 738 | |
| 739 | for (i = 0; i < ENDPOINT_MAX; i++) { |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 740 | pEndpoint = &target->endpoint[i]; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 741 | if (0 == pEndpoint->service_id) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 742 | continue; |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 743 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 744 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 745 | ("--- EP : %d service_id: 0x%X --------------\n", |
| 746 | pEndpoint->Id, pEndpoint->service_id)); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 747 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 748 | (" TxCredits : %d\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 749 | pEndpoint->TxCredits)); |
| 750 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 751 | (" TxCreditSize : %d\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 752 | pEndpoint->TxCreditSize)); |
| 753 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 754 | (" TxCreditsPerMaxMsg : %d\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 755 | pEndpoint->TxCreditsPerMaxMsg)); |
| 756 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
Houston Hoffman | 4f2f459 | 2015-10-20 18:00:29 -0700 | [diff] [blame] | 757 | (" TxQueueDepth : %d\n", |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 758 | HTC_PACKET_QUEUE_DEPTH(&pEndpoint->TxQueue))); |
| 759 | AR_DEBUG_PRINTF(ATH_DEBUG_ANY, |
| 760 | ("----------------------------------------------------\n")); |
| 761 | } |
| 762 | } |
| 763 | |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 764 | bool htc_get_endpoint_statistics(HTC_HANDLE HTCHandle, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 765 | HTC_ENDPOINT_ID Endpoint, |
| 766 | HTC_ENDPOINT_STAT_ACTION Action, |
| 767 | HTC_ENDPOINT_STATS *pStats) |
| 768 | { |
| 769 | #ifdef HTC_EP_STAT_PROFILING |
| 770 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 771 | bool clearStats = false; |
| 772 | bool sample = false; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 773 | |
| 774 | switch (Action) { |
| 775 | case HTC_EP_STAT_SAMPLE: |
| 776 | sample = true; |
| 777 | break; |
| 778 | case HTC_EP_STAT_SAMPLE_AND_CLEAR: |
| 779 | sample = true; |
| 780 | clearStats = true; |
| 781 | break; |
| 782 | case HTC_EP_STAT_CLEAR: |
| 783 | clearStats = true; |
| 784 | break; |
| 785 | default: |
| 786 | break; |
| 787 | } |
| 788 | |
| 789 | A_ASSERT(Endpoint < ENDPOINT_MAX); |
| 790 | |
| 791 | /* lock out TX and RX while we sample and/or clear */ |
| 792 | LOCK_HTC_TX(target); |
| 793 | LOCK_HTC_RX(target); |
| 794 | |
| 795 | if (sample) { |
| 796 | A_ASSERT(pStats != NULL); |
| 797 | /* return the stats to the caller */ |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 798 | qdf_mem_copy(pStats, &target->endpoint[Endpoint].endpoint_stats, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 799 | sizeof(HTC_ENDPOINT_STATS)); |
| 800 | } |
| 801 | |
| 802 | if (clearStats) { |
| 803 | /* reset stats */ |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 804 | qdf_mem_zero(&target->endpoint[Endpoint].endpoint_stats, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 805 | sizeof(HTC_ENDPOINT_STATS)); |
| 806 | } |
| 807 | |
| 808 | UNLOCK_HTC_RX(target); |
| 809 | UNLOCK_HTC_TX(target); |
| 810 | |
| 811 | return true; |
| 812 | #else |
| 813 | return false; |
| 814 | #endif |
| 815 | } |
| 816 | |
| 817 | void *htc_get_targetdef(HTC_HANDLE htc_handle) |
| 818 | { |
| 819 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle); |
| 820 | |
| 821 | return hif_get_targetdef(target->hif_dev); |
| 822 | } |
| 823 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 824 | #ifdef IPA_OFFLOAD |
Leo Chang | d85f78d | 2015-11-13 10:55:34 -0800 | [diff] [blame] | 825 | /** |
| 826 | * htc_ipa_get_ce_resource() - get uc resource on lower layer |
| 827 | * @htc_handle: htc context |
| 828 | * @ce_sr_base_paddr: copyengine source ring base physical address |
| 829 | * @ce_sr_ring_size: copyengine source ring size |
| 830 | * @ce_reg_paddr: copyengine register physical address |
| 831 | * |
| 832 | * Return: None |
| 833 | */ |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 834 | void htc_ipa_get_ce_resource(HTC_HANDLE htc_handle, |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 835 | qdf_dma_addr_t *ce_sr_base_paddr, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 836 | uint32_t *ce_sr_ring_size, |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 837 | qdf_dma_addr_t *ce_reg_paddr) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 838 | { |
| 839 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle); |
| 840 | |
| 841 | if (target->hif_dev != NULL) { |
| 842 | hif_ipa_get_ce_resource(target->hif_dev, |
| 843 | ce_sr_base_paddr, |
| 844 | ce_sr_ring_size, ce_reg_paddr); |
| 845 | } |
| 846 | } |
| 847 | #endif /* IPA_OFFLOAD */ |
Komal Seelam | f860068 | 2016-02-02 18:17:13 +0530 | [diff] [blame] | 848 | |
| 849 | /** |
| 850 | * htc_vote_link_down - API to vote for link down |
| 851 | * @htc_handle: HTC handle |
| 852 | * |
| 853 | * API for upper layers to call HIF to vote for link down |
| 854 | * |
| 855 | * Return: void |
| 856 | */ |
| 857 | void htc_vote_link_down(HTC_HANDLE htc_handle) |
| 858 | { |
| 859 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle); |
| 860 | |
| 861 | if (!target->hif_dev) |
| 862 | return; |
| 863 | |
| 864 | hif_vote_link_down(target->hif_dev); |
| 865 | } |
| 866 | |
| 867 | /** |
| 868 | * htc_vote_link_up - API to vote for link up |
| 869 | * @htc_handle: HTC Handle |
| 870 | * |
| 871 | * API for upper layers to call HIF to vote for link up |
| 872 | * |
| 873 | * Return: void |
| 874 | */ |
| 875 | void htc_vote_link_up(HTC_HANDLE htc_handle) |
| 876 | { |
| 877 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle); |
| 878 | |
| 879 | if (!target->hif_dev) |
| 880 | return; |
| 881 | |
| 882 | hif_vote_link_up(target->hif_dev); |
| 883 | } |
| 884 | |
| 885 | /** |
| 886 | * htc_can_suspend_link - API to query HIF for link status |
| 887 | * @htc_handle: HTC Handle |
| 888 | * |
| 889 | * API for upper layers to call HIF to query if the link can suspend |
| 890 | * |
| 891 | * Return: void |
| 892 | */ |
| 893 | bool htc_can_suspend_link(HTC_HANDLE htc_handle) |
| 894 | { |
| 895 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(htc_handle); |
| 896 | |
| 897 | if (!target->hif_dev) |
| 898 | return false; |
| 899 | |
| 900 | return hif_can_suspend_link(target->hif_dev); |
| 901 | } |