Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 1 | /* |
Yue Ma | ec9e71c | 2016-02-26 18:52:20 -0800 | [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 | |
| 28 | #include "htc_debug.h" |
| 29 | #include "htc_internal.h" |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 30 | #include <qdf_nbuf.h> /* qdf_nbuf_t */ |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 31 | |
Leo Chang | 19a7dd2 | 2015-11-13 13:35:15 -0800 | [diff] [blame] | 32 | /* HTC Control message receive timeout msec */ |
| 33 | #define HTC_CONTROL_RX_TIMEOUT 3000 |
| 34 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 35 | #ifdef DEBUG |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 36 | void debug_dump_bytes(uint8_t *buffer, uint16_t length, char *pDescription) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 37 | { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 38 | int8_t stream[60]; |
| 39 | int8_t byteOffsetStr[10]; |
| 40 | uint32_t i; |
| 41 | uint16_t offset, count, byteOffset; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 42 | |
| 43 | A_PRINTF("<---------Dumping %d Bytes : %s ------>\n", length, |
| 44 | pDescription); |
| 45 | |
| 46 | count = 0; |
| 47 | offset = 0; |
| 48 | byteOffset = 0; |
| 49 | for (i = 0; i < length; i++) { |
| 50 | A_SNPRINTF(stream + offset, (sizeof(stream) - offset), |
| 51 | "%02X ", buffer[i]); |
| 52 | count++; |
| 53 | offset += 3; |
| 54 | |
| 55 | if (count == 16) { |
| 56 | count = 0; |
| 57 | offset = 0; |
| 58 | A_SNPRINTF(byteOffsetStr, sizeof(byteOffset), "%4.4X", |
| 59 | byteOffset); |
| 60 | A_PRINTF("[%s]: %s\n", byteOffsetStr, stream); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 61 | qdf_mem_zero(stream, 60); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 62 | byteOffset += 16; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | if (offset != 0) { |
| 67 | A_SNPRINTF(byteOffsetStr, sizeof(byteOffset), "%4.4X", |
| 68 | byteOffset); |
| 69 | A_PRINTF("[%s]: %s\n", byteOffsetStr, stream); |
| 70 | } |
| 71 | |
| 72 | A_PRINTF("<------------------------------------------------->\n"); |
| 73 | } |
| 74 | #else |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 75 | void debug_dump_bytes(uint8_t *buffer, uint16_t length, char *pDescription) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 76 | { |
| 77 | } |
| 78 | #endif |
| 79 | |
| 80 | static A_STATUS htc_process_trailer(HTC_TARGET *target, |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 81 | uint8_t *pBuffer, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 82 | int Length, HTC_ENDPOINT_ID FromEndpoint); |
| 83 | |
| 84 | static void do_recv_completion(HTC_ENDPOINT *pEndpoint, |
| 85 | HTC_PACKET_QUEUE *pQueueToIndicate) |
| 86 | { |
| 87 | |
| 88 | do { |
| 89 | |
| 90 | if (HTC_QUEUE_EMPTY(pQueueToIndicate)) { |
| 91 | /* nothing to indicate */ |
| 92 | break; |
| 93 | } |
| 94 | |
| 95 | if (pEndpoint->EpCallBacks.EpRecvPktMultiple != NULL) { |
| 96 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, |
| 97 | (" HTC calling ep %d, recv multiple callback (%d pkts) \n", |
| 98 | pEndpoint->Id, |
| 99 | HTC_PACKET_QUEUE_DEPTH |
| 100 | (pQueueToIndicate))); |
| 101 | /* a recv multiple handler is being used, pass the queue to the handler */ |
| 102 | pEndpoint->EpCallBacks.EpRecvPktMultiple(pEndpoint-> |
| 103 | EpCallBacks. |
| 104 | pContext, |
| 105 | pQueueToIndicate); |
| 106 | INIT_HTC_PACKET_QUEUE(pQueueToIndicate); |
| 107 | } else { |
| 108 | HTC_PACKET *pPacket; |
| 109 | /* using legacy EpRecv */ |
| 110 | while (!HTC_QUEUE_EMPTY(pQueueToIndicate)) { |
| 111 | pPacket = htc_packet_dequeue(pQueueToIndicate); |
| 112 | if (pEndpoint->EpCallBacks.EpRecv == NULL) { |
| 113 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 114 | ("HTC ep %d has NULL recv callback on packet %p\n", |
| 115 | pEndpoint->Id, |
| 116 | pPacket)); |
| 117 | continue; |
| 118 | } |
| 119 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, |
| 120 | ("HTC calling ep %d recv callback on packet %p\n", |
| 121 | pEndpoint->Id, pPacket)); |
| 122 | pEndpoint->EpCallBacks.EpRecv(pEndpoint-> |
| 123 | EpCallBacks. |
| 124 | pContext, |
| 125 | pPacket); |
| 126 | } |
| 127 | } |
| 128 | |
| 129 | } while (false); |
| 130 | |
| 131 | } |
| 132 | |
| 133 | static void recv_packet_completion(HTC_TARGET *target, HTC_ENDPOINT *pEndpoint, |
| 134 | HTC_PACKET *pPacket) |
| 135 | { |
| 136 | HTC_PACKET_QUEUE container; |
| 137 | INIT_HTC_PACKET_QUEUE_AND_ADD(&container, pPacket); |
| 138 | /* do completion */ |
| 139 | do_recv_completion(pEndpoint, &container); |
| 140 | } |
| 141 | |
| 142 | void htc_control_rx_complete(void *Context, HTC_PACKET *pPacket) |
| 143 | { |
| 144 | /* TODO, can't really receive HTC control messages yet.... */ |
| 145 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 146 | ("Invalid call to htc_control_rx_complete\n")); |
| 147 | } |
| 148 | |
| 149 | void htc_unblock_recv(HTC_HANDLE HTCHandle) |
| 150 | { |
| 151 | /* TODO find the Need in new model */ |
| 152 | } |
| 153 | |
| 154 | void htc_enable_recv(HTC_HANDLE HTCHandle) |
| 155 | { |
| 156 | |
| 157 | /* TODO find the Need in new model */ |
| 158 | } |
| 159 | |
| 160 | void htc_disable_recv(HTC_HANDLE HTCHandle) |
| 161 | { |
| 162 | |
| 163 | /* TODO find the Need in new model */ |
| 164 | } |
| 165 | |
| 166 | int htc_get_num_recv_buffers(HTC_HANDLE HTCHandle, HTC_ENDPOINT_ID Endpoint) |
| 167 | { |
| 168 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 169 | HTC_ENDPOINT *pEndpoint = &target->endpoint[Endpoint]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 170 | return HTC_PACKET_QUEUE_DEPTH(&pEndpoint->RxBufferHoldQueue); |
| 171 | } |
| 172 | |
| 173 | HTC_PACKET *allocate_htc_packet_container(HTC_TARGET *target) |
| 174 | { |
| 175 | HTC_PACKET *pPacket; |
| 176 | |
| 177 | LOCK_HTC_RX(target); |
| 178 | |
| 179 | if (NULL == target->pHTCPacketStructPool) { |
| 180 | UNLOCK_HTC_RX(target); |
| 181 | return NULL; |
| 182 | } |
| 183 | |
| 184 | pPacket = target->pHTCPacketStructPool; |
| 185 | target->pHTCPacketStructPool = (HTC_PACKET *) pPacket->ListLink.pNext; |
| 186 | |
| 187 | UNLOCK_HTC_RX(target); |
| 188 | |
| 189 | pPacket->ListLink.pNext = NULL; |
| 190 | return pPacket; |
| 191 | } |
| 192 | |
| 193 | void free_htc_packet_container(HTC_TARGET *target, HTC_PACKET *pPacket) |
| 194 | { |
| 195 | LOCK_HTC_RX(target); |
| 196 | |
| 197 | if (NULL == target->pHTCPacketStructPool) { |
| 198 | target->pHTCPacketStructPool = pPacket; |
| 199 | pPacket->ListLink.pNext = NULL; |
| 200 | } else { |
| 201 | pPacket->ListLink.pNext = |
| 202 | (DL_LIST *) target->pHTCPacketStructPool; |
| 203 | target->pHTCPacketStructPool = pPacket; |
| 204 | } |
| 205 | |
| 206 | UNLOCK_HTC_RX(target); |
| 207 | } |
| 208 | |
| 209 | #ifdef RX_SG_SUPPORT |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 210 | qdf_nbuf_t rx_sg_to_single_netbuf(HTC_TARGET *target) |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 211 | { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 212 | qdf_nbuf_t skb; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 213 | uint8_t *anbdata; |
| 214 | uint8_t *anbdata_new; |
| 215 | uint32_t anblen; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 216 | qdf_nbuf_t new_skb = NULL; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 217 | uint32_t sg_queue_len; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 218 | qdf_nbuf_queue_t *rx_sg_queue = &target->RxSgQueue; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 219 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 220 | sg_queue_len = qdf_nbuf_queue_len(rx_sg_queue); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 221 | |
| 222 | if (sg_queue_len <= 1) { |
| 223 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 224 | ("rx_sg_to_single_netbuf: invalid sg queue len %u\n")); |
| 225 | goto _failed; |
| 226 | } |
| 227 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 228 | new_skb = qdf_nbuf_alloc(target->ExpRxSgTotalLen, 0, 4, false); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 229 | if (new_skb == NULL) { |
| 230 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 231 | ("rx_sg_to_single_netbuf: can't allocate %u size netbuf\n", |
| 232 | target->ExpRxSgTotalLen)); |
| 233 | goto _failed; |
| 234 | } |
| 235 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 236 | qdf_nbuf_peek_header(new_skb, &anbdata_new, &anblen); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 237 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 238 | skb = qdf_nbuf_queue_remove(rx_sg_queue); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 239 | do { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 240 | qdf_nbuf_peek_header(skb, &anbdata, &anblen); |
| 241 | qdf_mem_copy(anbdata_new, anbdata, qdf_nbuf_len(skb)); |
| 242 | qdf_nbuf_put_tail(new_skb, qdf_nbuf_len(skb)); |
| 243 | anbdata_new += qdf_nbuf_len(skb); |
| 244 | qdf_nbuf_free(skb); |
| 245 | skb = qdf_nbuf_queue_remove(rx_sg_queue); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 246 | } while (skb != NULL); |
| 247 | |
| 248 | RESET_RX_SG_CONFIG(target); |
| 249 | return new_skb; |
| 250 | |
| 251 | _failed: |
| 252 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 253 | while ((skb = qdf_nbuf_queue_remove(rx_sg_queue)) != NULL) |
| 254 | qdf_nbuf_free(skb); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 255 | |
| 256 | RESET_RX_SG_CONFIG(target); |
| 257 | return NULL; |
| 258 | } |
| 259 | #endif |
| 260 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 261 | QDF_STATUS htc_rx_completion_handler(void *Context, qdf_nbuf_t netbuf, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 262 | uint8_t pipeID) |
| 263 | { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 264 | QDF_STATUS status = QDF_STATUS_SUCCESS; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 265 | HTC_FRAME_HDR *HtcHdr; |
| 266 | HTC_TARGET *target = (HTC_TARGET *) Context; |
| 267 | uint8_t *netdata; |
| 268 | uint32_t netlen; |
| 269 | HTC_ENDPOINT *pEndpoint; |
| 270 | HTC_PACKET *pPacket; |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 271 | uint16_t payloadLen; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 272 | uint32_t trailerlen = 0; |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 273 | uint8_t htc_ep_id; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 274 | |
| 275 | #ifdef RX_SG_SUPPORT |
| 276 | LOCK_HTC_RX(target); |
| 277 | if (target->IsRxSgInprogress) { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 278 | target->CurRxSgTotalLen += qdf_nbuf_len(netbuf); |
| 279 | qdf_nbuf_queue_add(&target->RxSgQueue, netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 280 | if (target->CurRxSgTotalLen == target->ExpRxSgTotalLen) { |
| 281 | netbuf = rx_sg_to_single_netbuf(target); |
| 282 | if (netbuf == NULL) { |
| 283 | UNLOCK_HTC_RX(target); |
| 284 | goto _out; |
| 285 | } |
| 286 | } else { |
| 287 | netbuf = NULL; |
| 288 | UNLOCK_HTC_RX(target); |
| 289 | goto _out; |
| 290 | } |
| 291 | } |
| 292 | UNLOCK_HTC_RX(target); |
| 293 | #endif |
| 294 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 295 | netdata = qdf_nbuf_data(netbuf); |
| 296 | netlen = qdf_nbuf_len(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 297 | |
| 298 | HtcHdr = (HTC_FRAME_HDR *) netdata; |
| 299 | |
| 300 | do { |
| 301 | |
| 302 | htc_ep_id = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, ENDPOINTID); |
| 303 | |
| 304 | if (htc_ep_id >= ENDPOINT_MAX) { |
| 305 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 306 | ("HTC Rx: invalid EndpointID=%d\n", |
| 307 | htc_ep_id)); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 308 | debug_dump_bytes((uint8_t *) HtcHdr, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 309 | sizeof(HTC_FRAME_HDR), "BAD HTC Header"); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 310 | status = QDF_STATUS_E_FAILURE; |
| 311 | QDF_BUG(0); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 312 | break; |
| 313 | } |
| 314 | |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 315 | pEndpoint = &target->endpoint[htc_ep_id]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 316 | |
| 317 | /* |
| 318 | * If this endpoint that received a message from the target has |
| 319 | * a to-target HIF pipe whose send completions are polled rather |
| 320 | * than interrupt-driven, this is a good point to ask HIF to check |
| 321 | * whether it has any completed sends to handle. |
| 322 | */ |
| 323 | if (pEndpoint->ul_is_polled) { |
| 324 | htc_send_complete_check(pEndpoint, 1); |
| 325 | } |
| 326 | |
| 327 | payloadLen = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, PAYLOADLEN); |
| 328 | |
| 329 | if (netlen < (payloadLen + HTC_HDR_LENGTH)) { |
| 330 | #ifdef RX_SG_SUPPORT |
| 331 | LOCK_HTC_RX(target); |
| 332 | target->IsRxSgInprogress = true; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 333 | qdf_nbuf_queue_init(&target->RxSgQueue); |
| 334 | qdf_nbuf_queue_add(&target->RxSgQueue, netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 335 | target->ExpRxSgTotalLen = (payloadLen + HTC_HDR_LENGTH); |
| 336 | target->CurRxSgTotalLen += netlen; |
| 337 | UNLOCK_HTC_RX(target); |
| 338 | netbuf = NULL; |
| 339 | break; |
| 340 | #else |
| 341 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 342 | ("HTC Rx: insufficient length, got:%d expected =%zu\n", |
| 343 | netlen, payloadLen + HTC_HDR_LENGTH)); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 344 | debug_dump_bytes((uint8_t *) HtcHdr, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 345 | sizeof(HTC_FRAME_HDR), |
| 346 | "BAD RX packet length"); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 347 | status = QDF_STATUS_E_FAILURE; |
| 348 | QDF_BUG(0); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 349 | break; |
| 350 | #endif |
| 351 | } |
| 352 | #ifdef HTC_EP_STAT_PROFILING |
| 353 | LOCK_HTC_RX(target); |
| 354 | INC_HTC_EP_STAT(pEndpoint, RxReceived, 1); |
| 355 | UNLOCK_HTC_RX(target); |
| 356 | #endif |
| 357 | |
| 358 | /* if (IS_TX_CREDIT_FLOW_ENABLED(pEndpoint)) { */ |
| 359 | { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 360 | uint8_t temp; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 361 | A_STATUS temp_status; |
| 362 | /* get flags to check for trailer */ |
| 363 | temp = HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, FLAGS); |
| 364 | if (temp & HTC_FLAGS_RECV_TRAILER) { |
| 365 | /* extract the trailer length */ |
| 366 | temp = |
| 367 | HTC_GET_FIELD(HtcHdr, HTC_FRAME_HDR, |
| 368 | CONTROLBYTES0); |
| 369 | if ((temp < sizeof(HTC_RECORD_HDR)) |
| 370 | || (temp > payloadLen)) { |
| 371 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 372 | ("htc_rx_completion_handler, invalid header (payloadlength should be :%d, CB[0] is:%d)\n", |
| 373 | payloadLen, temp)); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 374 | status = QDF_STATUS_E_INVAL; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 375 | break; |
| 376 | } |
| 377 | |
| 378 | trailerlen = temp; |
| 379 | /* process trailer data that follows HDR + application payload */ |
| 380 | temp_status = htc_process_trailer(target, |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 381 | ((uint8_t *) HtcHdr + |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 382 | HTC_HDR_LENGTH + |
| 383 | payloadLen - temp), |
| 384 | temp, htc_ep_id); |
| 385 | if (A_FAILED(temp_status)) { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 386 | status = QDF_STATUS_E_FAILURE; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 387 | break; |
| 388 | } |
| 389 | |
| 390 | } |
| 391 | } |
| 392 | |
| 393 | if (((int)payloadLen - (int)trailerlen) <= 0) { |
| 394 | /* zero length packet with trailer data, just drop these */ |
| 395 | break; |
| 396 | } |
| 397 | |
| 398 | if (htc_ep_id == ENDPOINT_0) { |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 399 | uint16_t message_id; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 400 | HTC_UNKNOWN_MSG *htc_msg; |
Houston Hoffman | 61fad9f | 2016-04-14 17:09:37 -0700 | [diff] [blame] | 401 | bool wow_nack; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 402 | |
| 403 | /* remove HTC header */ |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 404 | qdf_nbuf_pull_head(netbuf, HTC_HDR_LENGTH); |
| 405 | netdata = qdf_nbuf_data(netbuf); |
| 406 | netlen = qdf_nbuf_len(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 407 | |
| 408 | htc_msg = (HTC_UNKNOWN_MSG *) netdata; |
| 409 | message_id = |
| 410 | HTC_GET_FIELD(htc_msg, HTC_UNKNOWN_MSG, MESSAGEID); |
| 411 | |
| 412 | switch (message_id) { |
| 413 | default: |
| 414 | /* handle HTC control message */ |
| 415 | if (target->CtrlResponseProcessing) { |
| 416 | /* this is a fatal error, target should not be sending unsolicited messages |
| 417 | * on the endpoint 0 */ |
| 418 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 419 | ("HTC Rx Ctrl still processing\n")); |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 420 | status = QDF_STATUS_E_FAILURE; |
| 421 | QDF_BUG(false); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 422 | break; |
| 423 | } |
| 424 | |
| 425 | LOCK_HTC_RX(target); |
| 426 | target->CtrlResponseLength = |
| 427 | min((int)netlen, |
| 428 | HTC_MAX_CONTROL_MESSAGE_LENGTH); |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 429 | qdf_mem_copy(target->CtrlResponseBuffer, |
| 430 | netdata, |
| 431 | target->CtrlResponseLength); |
Prashanth Bhatta | 5304757 | 2015-11-05 11:43:17 -0800 | [diff] [blame] | 432 | |
| 433 | /* Requester will clear this flag */ |
| 434 | target->CtrlResponseProcessing = true; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 435 | UNLOCK_HTC_RX(target); |
| 436 | |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 437 | qdf_event_set(&target->ctrl_response_valid); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 438 | break; |
| 439 | case HTC_MSG_SEND_SUSPEND_COMPLETE: |
Houston Hoffman | 61fad9f | 2016-04-14 17:09:37 -0700 | [diff] [blame] | 440 | wow_nack = false; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 441 | LOCK_HTC_CREDIT(target); |
| 442 | htc_credit_record(HTC_SUSPEND_ACK, |
| 443 | pEndpoint->TxCredits, |
| 444 | HTC_PACKET_QUEUE_DEPTH( |
| 445 | &pEndpoint->TxQueue)); |
| 446 | UNLOCK_HTC_CREDIT(target); |
Houston Hoffman | 61fad9f | 2016-04-14 17:09:37 -0700 | [diff] [blame] | 447 | target->HTCInitInfo.TargetSendSuspendComplete( |
| 448 | target->HTCInitInfo.pContext, |
| 449 | wow_nack); |
| 450 | |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 451 | break; |
| 452 | case HTC_MSG_NACK_SUSPEND: |
Houston Hoffman | 61fad9f | 2016-04-14 17:09:37 -0700 | [diff] [blame] | 453 | wow_nack = true; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 454 | LOCK_HTC_CREDIT(target); |
| 455 | htc_credit_record(HTC_SUSPEND_ACK, |
| 456 | pEndpoint->TxCredits, |
| 457 | HTC_PACKET_QUEUE_DEPTH( |
| 458 | &pEndpoint->TxQueue)); |
| 459 | UNLOCK_HTC_CREDIT(target); |
| 460 | |
Houston Hoffman | 61fad9f | 2016-04-14 17:09:37 -0700 | [diff] [blame] | 461 | target->HTCInitInfo.TargetSendSuspendComplete( |
| 462 | target->HTCInitInfo.pContext, |
| 463 | wow_nack); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 464 | break; |
| 465 | } |
| 466 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 467 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 468 | netbuf = NULL; |
| 469 | break; |
| 470 | } |
| 471 | |
| 472 | /* the current message based HIF architecture allocates net bufs for recv packets |
| 473 | * since this layer bridges that HIF to upper layers , which expects HTC packets, |
| 474 | * we form the packets here |
| 475 | * TODO_FIXME */ |
| 476 | pPacket = allocate_htc_packet_container(target); |
| 477 | if (NULL == pPacket) { |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 478 | status = QDF_STATUS_E_RESOURCES; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 479 | break; |
| 480 | } |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 481 | pPacket->Status = QDF_STATUS_SUCCESS; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 482 | pPacket->Endpoint = htc_ep_id; |
| 483 | pPacket->pPktContext = netbuf; |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 484 | pPacket->pBuffer = qdf_nbuf_data(netbuf) + HTC_HDR_LENGTH; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 485 | pPacket->ActualLength = netlen - HTC_HEADER_LEN - trailerlen; |
| 486 | |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 487 | qdf_nbuf_pull_head(netbuf, HTC_HEADER_LEN); |
| 488 | qdf_nbuf_set_pktlen(netbuf, pPacket->ActualLength); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 489 | |
| 490 | recv_packet_completion(target, pEndpoint, pPacket); |
| 491 | /* recover the packet container */ |
| 492 | free_htc_packet_container(target, pPacket); |
| 493 | netbuf = NULL; |
| 494 | |
| 495 | } while (false); |
| 496 | |
| 497 | #ifdef RX_SG_SUPPORT |
| 498 | _out: |
| 499 | #endif |
| 500 | |
| 501 | if (netbuf != NULL) { |
Vishwajith Upendra | 70f8b6e | 2016-03-01 16:28:23 +0530 | [diff] [blame] | 502 | qdf_nbuf_free(netbuf); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 503 | } |
| 504 | |
| 505 | return status; |
| 506 | |
| 507 | } |
| 508 | |
| 509 | A_STATUS htc_add_receive_pkt_multiple(HTC_HANDLE HTCHandle, |
| 510 | HTC_PACKET_QUEUE *pPktQueue) |
| 511 | { |
| 512 | HTC_TARGET *target = GET_HTC_TARGET_FROM_HANDLE(HTCHandle); |
| 513 | HTC_ENDPOINT *pEndpoint; |
| 514 | HTC_PACKET *pFirstPacket; |
| 515 | A_STATUS status = A_OK; |
| 516 | HTC_PACKET *pPacket; |
| 517 | |
| 518 | pFirstPacket = htc_get_pkt_at_head(pPktQueue); |
| 519 | |
| 520 | if (NULL == pFirstPacket) { |
| 521 | A_ASSERT(false); |
| 522 | return A_EINVAL; |
| 523 | } |
| 524 | |
| 525 | AR_DEBUG_ASSERT(pFirstPacket->Endpoint < ENDPOINT_MAX); |
| 526 | |
| 527 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, |
| 528 | ("+- htc_add_receive_pkt_multiple : endPointId: %d, cnt:%d, length: %d\n", |
| 529 | pFirstPacket->Endpoint, |
| 530 | HTC_PACKET_QUEUE_DEPTH(pPktQueue), |
| 531 | pFirstPacket->BufferLength)); |
| 532 | |
Houston Hoffman | 29573d9 | 2015-10-20 17:49:44 -0700 | [diff] [blame] | 533 | pEndpoint = &target->endpoint[pFirstPacket->Endpoint]; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 534 | |
| 535 | LOCK_HTC_RX(target); |
| 536 | |
| 537 | do { |
| 538 | |
| 539 | if (HTC_STOPPING(target)) { |
| 540 | status = A_ERROR; |
| 541 | break; |
| 542 | } |
| 543 | |
| 544 | /* store receive packets */ |
| 545 | HTC_PACKET_QUEUE_TRANSFER_TO_TAIL(&pEndpoint->RxBufferHoldQueue, |
| 546 | pPktQueue); |
| 547 | |
| 548 | } while (false); |
| 549 | |
| 550 | UNLOCK_HTC_RX(target); |
| 551 | |
| 552 | if (A_FAILED(status)) { |
| 553 | /* walk through queue and mark each one canceled */ |
| 554 | HTC_PACKET_QUEUE_ITERATE_ALLOW_REMOVE(pPktQueue, pPacket) { |
| 555 | pPacket->Status = A_ECANCELED; |
| 556 | } |
| 557 | HTC_PACKET_QUEUE_ITERATE_END; |
| 558 | |
| 559 | do_recv_completion(pEndpoint, pPktQueue); |
| 560 | } |
| 561 | |
| 562 | return status; |
| 563 | } |
| 564 | |
| 565 | A_STATUS htc_add_receive_pkt(HTC_HANDLE HTCHandle, HTC_PACKET *pPacket) |
| 566 | { |
| 567 | HTC_PACKET_QUEUE queue; |
| 568 | INIT_HTC_PACKET_QUEUE_AND_ADD(&queue, pPacket); |
| 569 | return htc_add_receive_pkt_multiple(HTCHandle, &queue); |
| 570 | } |
| 571 | |
| 572 | void htc_flush_rx_hold_queue(HTC_TARGET *target, HTC_ENDPOINT *pEndpoint) |
| 573 | { |
| 574 | HTC_PACKET *pPacket; |
| 575 | HTC_PACKET_QUEUE container; |
| 576 | |
| 577 | LOCK_HTC_RX(target); |
| 578 | |
| 579 | while (1) { |
| 580 | pPacket = htc_packet_dequeue(&pEndpoint->RxBufferHoldQueue); |
| 581 | if (NULL == pPacket) { |
| 582 | break; |
| 583 | } |
| 584 | UNLOCK_HTC_RX(target); |
| 585 | pPacket->Status = A_ECANCELED; |
| 586 | pPacket->ActualLength = 0; |
| 587 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, |
| 588 | (" Flushing RX packet:%p, length:%d, ep:%d \n", |
| 589 | pPacket, pPacket->BufferLength, |
| 590 | pPacket->Endpoint)); |
| 591 | INIT_HTC_PACKET_QUEUE_AND_ADD(&container, pPacket); |
| 592 | /* give the packet back */ |
| 593 | do_recv_completion(pEndpoint, &container); |
| 594 | LOCK_HTC_RX(target); |
| 595 | } |
| 596 | |
| 597 | UNLOCK_HTC_RX(target); |
| 598 | } |
| 599 | |
| 600 | void htc_recv_init(HTC_TARGET *target) |
| 601 | { |
Leo Chang | 19a7dd2 | 2015-11-13 13:35:15 -0800 | [diff] [blame] | 602 | /* Initialize ctrl_response_valid to block */ |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 603 | qdf_event_create(&target->ctrl_response_valid); |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 604 | } |
| 605 | |
| 606 | /* polling routine to wait for a control packet to be received */ |
| 607 | A_STATUS htc_wait_recv_ctrl_message(HTC_TARGET *target) |
| 608 | { |
| 609 | /* int count = HTC_TARGET_MAX_RESPONSE_POLL; */ |
| 610 | |
| 611 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("+HTCWaitCtrlMessageRecv\n")); |
| 612 | |
| 613 | /* Wait for BMI request/response transaction to complete */ |
Chouhan, Anurag | fc06aa9 | 2016-03-03 19:05:05 +0530 | [diff] [blame] | 614 | if (qdf_wait_single_event(&target->ctrl_response_valid, |
| 615 | qdf_system_msecs_to_ticks(HTC_CONTROL_RX_TIMEOUT))) { |
| 616 | QDF_BUG(0); |
Leo Chang | 19a7dd2 | 2015-11-13 13:35:15 -0800 | [diff] [blame] | 617 | return A_ERROR; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 618 | } |
| 619 | |
| 620 | LOCK_HTC_RX(target); |
| 621 | /* caller will clear this flag */ |
| 622 | target->CtrlResponseProcessing = true; |
| 623 | |
| 624 | UNLOCK_HTC_RX(target); |
| 625 | |
| 626 | #if 0 |
| 627 | while (count > 0) { |
| 628 | |
| 629 | LOCK_HTC_RX(target); |
| 630 | |
| 631 | if (target->CtrlResponseValid) { |
| 632 | target->CtrlResponseValid = false; |
| 633 | /* caller will clear this flag */ |
| 634 | target->CtrlResponseProcessing = true; |
| 635 | UNLOCK_HTC_RX(target); |
| 636 | break; |
| 637 | } |
| 638 | |
| 639 | UNLOCK_HTC_RX(target); |
| 640 | |
| 641 | count--; |
| 642 | A_MSLEEP(HTC_TARGET_RESPONSE_POLL_MS); |
| 643 | } |
| 644 | |
| 645 | if (count <= 0) { |
| 646 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 647 | ("-HTCWaitCtrlMessageRecv: Timeout!\n")); |
| 648 | return A_ECOMM; |
| 649 | } |
| 650 | #endif |
| 651 | |
| 652 | AR_DEBUG_PRINTF(ATH_DEBUG_TRC, ("-HTCWaitCtrlMessageRecv success\n")); |
| 653 | return A_OK; |
| 654 | } |
| 655 | |
| 656 | static A_STATUS htc_process_trailer(HTC_TARGET *target, |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 657 | uint8_t *pBuffer, |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 658 | int Length, HTC_ENDPOINT_ID FromEndpoint) |
| 659 | { |
| 660 | HTC_RECORD_HDR *pRecord; |
Yue Ma | b16cf30 | 2016-03-08 18:30:25 -0800 | [diff] [blame] | 661 | uint8_t htc_rec_id; |
| 662 | uint8_t htc_rec_len; |
| 663 | uint8_t *pRecordBuf; |
| 664 | uint8_t *pOrigBuffer; |
Prakash Dhavali | d5c9f1c | 2015-11-08 19:04:44 -0800 | [diff] [blame] | 665 | int origLength; |
| 666 | A_STATUS status; |
| 667 | |
| 668 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, |
| 669 | ("+htc_process_trailer (length:%d) \n", Length)); |
| 670 | |
| 671 | if (AR_DEBUG_LVL_CHECK(ATH_DEBUG_RECV)) { |
| 672 | AR_DEBUG_PRINTBUF(pBuffer, Length, "Recv Trailer"); |
| 673 | } |
| 674 | |
| 675 | pOrigBuffer = pBuffer; |
| 676 | origLength = Length; |
| 677 | status = A_OK; |
| 678 | |
| 679 | while (Length > 0) { |
| 680 | |
| 681 | if (Length < sizeof(HTC_RECORD_HDR)) { |
| 682 | status = A_EPROTO; |
| 683 | break; |
| 684 | } |
| 685 | /* these are byte aligned structs */ |
| 686 | pRecord = (HTC_RECORD_HDR *) pBuffer; |
| 687 | Length -= sizeof(HTC_RECORD_HDR); |
| 688 | pBuffer += sizeof(HTC_RECORD_HDR); |
| 689 | |
| 690 | htc_rec_len = HTC_GET_FIELD(pRecord, HTC_RECORD_HDR, LENGTH); |
| 691 | htc_rec_id = HTC_GET_FIELD(pRecord, HTC_RECORD_HDR, RECORDID); |
| 692 | |
| 693 | if (htc_rec_len > Length) { |
| 694 | /* no room left in buffer for record */ |
| 695 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 696 | (" invalid record length: %d (id:%d) buffer has: %d bytes left \n", |
| 697 | htc_rec_len, htc_rec_id, Length)); |
| 698 | status = A_EPROTO; |
| 699 | break; |
| 700 | } |
| 701 | /* start of record follows the header */ |
| 702 | pRecordBuf = pBuffer; |
| 703 | |
| 704 | switch (htc_rec_id) { |
| 705 | case HTC_RECORD_CREDITS: |
| 706 | AR_DEBUG_ASSERT(htc_rec_len >= |
| 707 | sizeof(HTC_CREDIT_REPORT)); |
| 708 | htc_process_credit_rpt(target, |
| 709 | (HTC_CREDIT_REPORT *) pRecordBuf, |
| 710 | htc_rec_len / |
| 711 | (sizeof(HTC_CREDIT_REPORT)), |
| 712 | FromEndpoint); |
| 713 | break; |
| 714 | |
| 715 | #ifdef HIF_SDIO |
| 716 | case HTC_RECORD_LOOKAHEAD: |
| 717 | /* Process in HIF layer */ |
| 718 | break; |
| 719 | |
| 720 | case HTC_RECORD_LOOKAHEAD_BUNDLE: |
| 721 | /* Process in HIF layer */ |
| 722 | break; |
| 723 | #endif /* HIF_SDIO */ |
| 724 | |
| 725 | default: |
| 726 | AR_DEBUG_PRINTF(ATH_DEBUG_ERR, |
| 727 | (" HTC unhandled record: id:%d length:%d \n", |
| 728 | htc_rec_id, htc_rec_len)); |
| 729 | break; |
| 730 | } |
| 731 | |
| 732 | if (A_FAILED(status)) { |
| 733 | break; |
| 734 | } |
| 735 | |
| 736 | /* advance buffer past this record for next time around */ |
| 737 | pBuffer += htc_rec_len; |
| 738 | Length -= htc_rec_len; |
| 739 | } |
| 740 | |
| 741 | if (A_FAILED(status)) { |
| 742 | debug_dump_bytes(pOrigBuffer, origLength, "BAD Recv Trailer"); |
| 743 | } |
| 744 | |
| 745 | AR_DEBUG_PRINTF(ATH_DEBUG_RECV, ("-htc_process_trailer \n")); |
| 746 | return status; |
| 747 | |
| 748 | } |