| /* |
| * Copyright (c) 2013-2016 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #ifndef _HTC_INTERNAL_H_ |
| #define _HTC_INTERNAL_H_ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif /* __cplusplus */ |
| |
| #include "htc_api.h" |
| #include "htc_packet.h" |
| #include <hif.h> |
| #include <htc.h> |
| #include <qdf_atomic.h> |
| #include <qdf_event.h> |
| #include <qdf_lock.h> |
| #include <qdf_nbuf.h> |
| #include <qdf_timer.h> |
| #include <qdf_types.h> |
| |
| /* HTC operational parameters */ |
| #define HTC_TARGET_RESPONSE_TIMEOUT 2000 /* in ms */ |
| #define HTC_TARGET_DEBUG_INTR_MASK 0x01 |
| #define HTC_TARGET_CREDIT_INTR_MASK 0xF0 |
| #define HTC_MIN_MSG_PER_BUNDLE 2 |
| #if defined(HIF_USB) |
| #define HTC_MAX_MSG_PER_BUNDLE_RX 11 |
| #define HTC_MAX_MSG_PER_BUNDLE_TX 8 |
| #else |
| #define HTC_MAX_MSG_PER_BUNDLE_RX 64 |
| #define HTC_MAX_MSG_PER_BUNDLE 16 |
| #define HTC_MAX_MSG_PER_BUNDLE_TX 32 |
| #endif |
| |
| /* |
| * HTC_MAX_TX_BUNDLE_SEND_LIMIT - |
| * This value is in units of tx frame fragments. |
| * It needs to be at least as large as the maximum number of tx frames in a |
| * HTC download bundle times the average number of fragments in each such frame |
| * (In certain operating systems, such as Linux, we expect to only have |
| * a single fragment per frame anyway.) |
| */ |
| #define HTC_MAX_TX_BUNDLE_SEND_LIMIT 255 |
| |
| #define HTC_PACKET_CONTAINER_ALLOCATION 32 |
| #define NUM_CONTROL_TX_BUFFERS 2 |
| #define HTC_CONTROL_BUFFER_SIZE (HTC_MAX_CONTROL_MESSAGE_LENGTH + HTC_HDR_LENGTH) |
| #define HTC_CONTROL_BUFFER_ALIGN 32 |
| #define HTC_TARGET_RESPONSE_POLL_MS 10 |
| #if !defined(A_SIMOS_DEVHOST) |
| #define HTC_TARGET_MAX_RESPONSE_POLL 200 /* actual HW */ |
| #else |
| #define HTC_TARGET_MAX_RESPONSE_POLL 600 /* host + target simulation */ |
| #endif |
| |
| #define HTC_SERVICE_TX_PACKET_TAG HTC_TX_PACKET_TAG_INTERNAL |
| |
| #define HTC_CREDIT_HISTORY_MAX 1024 |
| |
| #define HTC_IS_EPPING_ENABLED(_x) ((_x) == QDF_GLOBAL_EPPING_MODE) |
| |
| typedef enum { |
| HTC_REQUEST_CREDIT, |
| HTC_PROCESS_CREDIT_REPORT, |
| HTC_SUSPEND_ACK, |
| HTC_SUSPEND_NACK, |
| HTC_INITIAL_WAKE_UP, |
| } htc_credit_exchange_type; |
| |
| typedef struct { |
| htc_credit_exchange_type type; |
| uint64_t time; |
| uint32_t tx_credit; |
| uint32_t htc_tx_queue_depth; |
| } HTC_CREDIT_HISTORY; |
| |
| typedef struct _HTC_ENDPOINT { |
| HTC_ENDPOINT_ID Id; |
| |
| /* service ID this endpoint is bound to |
| * non-zero value means this endpoint is in use |
| */ |
| HTC_SERVICE_ID service_id; |
| |
| HTC_EP_CALLBACKS EpCallBacks; /* callbacks associated with this endpoint */ |
| HTC_PACKET_QUEUE TxQueue; /* HTC frame buffer TX queue */ |
| int MaxTxQueueDepth; /* max depth of the TX queue before we need to |
| call driver's full handler */ |
| int MaxMsgLength; /* max length of endpoint message */ |
| uint8_t UL_PipeID; |
| uint8_t DL_PipeID; |
| int ul_is_polled; /* Need to call HIF to get tx completion callbacks? */ |
| qdf_timer_t ul_poll_timer; |
| int ul_poll_timer_active; |
| int ul_outstanding_cnt; |
| int dl_is_polled; /* Need to call HIF to fetch rx? (Not currently supported.) */ |
| #if 0 /* not currently supported */ |
| qdf_timer_t dl_poll_timer; |
| #endif |
| |
| HTC_PACKET_QUEUE TxLookupQueue; /* lookup queue to match netbufs to htc packets */ |
| HTC_PACKET_QUEUE RxBufferHoldQueue; /* temporary hold queue for back compatibility */ |
| uint8_t SeqNo; /* TX seq no (helpful) for debugging */ |
| qdf_atomic_t TxProcessCount; /* serialization */ |
| struct _HTC_TARGET *target; |
| int TxCredits; /* TX credits available on this endpoint */ |
| int TxCreditSize; /* size in bytes of each credit (set by HTC) */ |
| int TxCreditsPerMaxMsg; /* credits required per max message (precalculated) */ |
| #ifdef HTC_EP_STAT_PROFILING |
| HTC_ENDPOINT_STATS endpoint_stats; /* endpoint statistics */ |
| #endif |
| bool TxCreditFlowEnabled; |
| bool async_update; /* packets can be queued asynchronously */ |
| } HTC_ENDPOINT; |
| |
| #ifdef HTC_EP_STAT_PROFILING |
| #define INC_HTC_EP_STAT(p, stat, count) ((p)->endpoint_stats.stat += (count)) |
| #else |
| #define INC_HTC_EP_STAT(p, stat, count) |
| #endif |
| |
| typedef struct { |
| uint16_t service_id; |
| uint8_t CreditAllocation; |
| } HTC_SERVICE_TX_CREDIT_ALLOCATION; |
| |
| #define HTC_MAX_SERVICE_ALLOC_ENTRIES 8 |
| |
| /* Error codes for HTC layer packet stats*/ |
| enum ol_ath_htc_pkt_ecodes { |
| GET_HTC_PKT_Q_FAIL = 0, /* error- get packet at head of HTC_PACKET_Q */ |
| HTC_PKT_Q_EMPTY, |
| HTC_SEND_Q_EMPTY |
| }; |
| /* our HTC target state */ |
| typedef struct _HTC_TARGET { |
| struct hif_opaque_softc *hif_dev; |
| HTC_ENDPOINT endpoint[ENDPOINT_MAX]; |
| qdf_spinlock_t HTCLock; |
| qdf_spinlock_t HTCRxLock; |
| qdf_spinlock_t HTCTxLock; |
| qdf_spinlock_t HTCCreditLock; |
| uint32_t HTCStateFlags; |
| void *host_handle; |
| HTC_INIT_INFO HTCInitInfo; |
| HTC_PACKET *pHTCPacketStructPool; /* pool of HTC packets */ |
| HTC_PACKET_QUEUE ControlBufferTXFreeList; |
| uint8_t CtrlResponseBuffer[HTC_MAX_CONTROL_MESSAGE_LENGTH]; |
| int CtrlResponseLength; |
| qdf_event_t ctrl_response_valid; |
| bool CtrlResponseProcessing; |
| int TotalTransmitCredits; |
| HTC_SERVICE_TX_CREDIT_ALLOCATION |
| ServiceTxAllocTable[HTC_MAX_SERVICE_ALLOC_ENTRIES]; |
| int TargetCreditSize; |
| #ifdef RX_SG_SUPPORT |
| qdf_nbuf_queue_t RxSgQueue; |
| bool IsRxSgInprogress; |
| uint32_t CurRxSgTotalLen; /* current total length */ |
| uint32_t ExpRxSgTotalLen; /* expected total length */ |
| #endif |
| qdf_device_t osdev; |
| struct ol_ath_htc_stats htc_pkt_stats; |
| HTC_PACKET *pBundleFreeList; |
| uint32_t ce_send_cnt; |
| uint32_t TX_comp_cnt; |
| uint8_t MaxMsgsPerHTCBundle; |
| qdf_work_t queue_kicker; |
| |
| #ifdef HIF_SDIO |
| A_UINT16 AltDataCreditSize; |
| #endif |
| A_UINT32 avail_tx_credits; |
| #if defined(DEBUG_HL_LOGGING) && defined(CONFIG_HL_SUPPORT) |
| A_UINT32 rx_bundle_stats[HTC_MAX_MSG_PER_BUNDLE_RX]; |
| A_UINT32 tx_bundle_stats[HTC_MAX_MSG_PER_BUNDLE_TX]; |
| #endif |
| |
| uint32_t con_mode; |
| |
| /* |
| * This flag is from the mboxping tool. It indicates that we cannot |
| * drop it. Besides, nodrop pkts have higher priority than normal pkts. |
| */ |
| A_BOOL is_nodrop_pkt; |
| } HTC_TARGET; |
| |
| #if defined ENABLE_BUNDLE_TX |
| #define HTC_TX_BUNDLE_ENABLED(target) (target->MaxMsgsPerHTCBundle > 1) |
| #else |
| #define HTC_TX_BUNDLE_ENABLED(target) 0 |
| #endif |
| |
| #if defined ENABLE_BUNDLE_RX |
| #define HTC_RX_BUNDLE_ENABLED(target) (target->MaxMsgsPerHTCBundle > 1) |
| #else |
| #define HTC_RX_BUNDLE_ENABLED(target) 0 |
| #endif |
| |
| #define HTC_ENABLE_BUNDLE(target) (target->MaxMsgsPerHTCBundle > 1) |
| |
| #ifdef RX_SG_SUPPORT |
| #define RESET_RX_SG_CONFIG(_target) \ |
| _target->ExpRxSgTotalLen = 0; \ |
| _target->CurRxSgTotalLen = 0; \ |
| _target->IsRxSgInprogress = false; |
| #endif |
| |
| #define HTC_STATE_STOPPING (1 << 0) |
| #define HTC_STOPPING(t) ((t)->HTCStateFlags & HTC_STATE_STOPPING) |
| #define LOCK_HTC(t) qdf_spin_lock_bh(&(t)->HTCLock); |
| #define UNLOCK_HTC(t) qdf_spin_unlock_bh(&(t)->HTCLock); |
| #define LOCK_HTC_RX(t) qdf_spin_lock_bh(&(t)->HTCRxLock); |
| #define UNLOCK_HTC_RX(t) qdf_spin_unlock_bh(&(t)->HTCRxLock); |
| #define LOCK_HTC_TX(t) qdf_spin_lock_bh(&(t)->HTCTxLock); |
| #define UNLOCK_HTC_TX(t) qdf_spin_unlock_bh(&(t)->HTCTxLock); |
| #define LOCK_HTC_CREDIT(t) qdf_spin_lock_bh(&(t)->HTCCreditLock); |
| #define UNLOCK_HTC_CREDIT(t) qdf_spin_unlock_bh(&(t)->HTCCreditLock); |
| |
| #define GET_HTC_TARGET_FROM_HANDLE(hnd) ((HTC_TARGET *)(hnd)) |
| |
| #define IS_TX_CREDIT_FLOW_ENABLED(ep) ((ep)->TxCreditFlowEnabled) |
| |
| #define HTC_POLL_CLEANUP_PERIOD_MS 10 /* milliseconds */ |
| |
| /* Macro to Increment the HTC_PACKET_ERRORS for Tx.*/ |
| #define OL_ATH_HTC_PKT_ERROR_COUNT_INCR(_target, _ecode) \ |
| do { \ |
| if (_ecode == GET_HTC_PKT_Q_FAIL) \ |
| (_target->htc_pkt_stats.htc_get_pkt_q_fail_count) += 1 \ |
| ; \ |
| if (_ecode == HTC_PKT_Q_EMPTY) \ |
| (_target->htc_pkt_stats.htc_pkt_q_empty_count) += 1 \ |
| ; \ |
| if (_ecode == HTC_SEND_Q_EMPTY) \ |
| (_target->htc_pkt_stats.htc_send_q_empty_count) += 1 \ |
| ; \ |
| } while (0); |
| /* internal HTC functions */ |
| |
| QDF_STATUS htc_rx_completion_handler(void *Context, qdf_nbuf_t netbuf, |
| uint8_t pipeID); |
| QDF_STATUS htc_tx_completion_handler(void *Context, qdf_nbuf_t netbuf, |
| unsigned int transferID, uint32_t toeplitz_hash_result); |
| |
| HTC_PACKET *allocate_htc_bundle_packet(HTC_TARGET *target); |
| void free_htc_bundle_packet(HTC_TARGET *target, HTC_PACKET *pPacket); |
| |
| HTC_PACKET *allocate_htc_packet_container(HTC_TARGET *target); |
| void free_htc_packet_container(HTC_TARGET *target, HTC_PACKET *pPacket); |
| void htc_flush_rx_hold_queue(HTC_TARGET *target, HTC_ENDPOINT *pEndpoint); |
| void htc_flush_endpoint_tx(HTC_TARGET *target, HTC_ENDPOINT *pEndpoint, |
| HTC_TX_TAG Tag); |
| void htc_recv_init(HTC_TARGET *target); |
| A_STATUS htc_wait_recv_ctrl_message(HTC_TARGET *target); |
| void htc_free_control_tx_packet(HTC_TARGET *target, HTC_PACKET *pPacket); |
| HTC_PACKET *htc_alloc_control_tx_packet(HTC_TARGET *target); |
| uint8_t htc_get_credit_allocation(HTC_TARGET *target, uint16_t service_id); |
| void htc_tx_resource_avail_handler(void *context, uint8_t pipeID); |
| void htc_control_rx_complete(void *Context, HTC_PACKET *pPacket); |
| void htc_process_credit_rpt(HTC_TARGET *target, |
| HTC_CREDIT_REPORT *pRpt, |
| int NumEntries, HTC_ENDPOINT_ID FromEndpoint); |
| void htc_fw_event_handler(void *context, QDF_STATUS status); |
| void htc_send_complete_check_cleanup(void *context); |
| #ifdef FEATURE_RUNTIME_PM |
| void htc_kick_queues(void *context); |
| #endif |
| |
| void htc_credit_record(htc_credit_exchange_type type, uint32_t tx_credit, |
| uint32_t htc_tx_queue_depth); |
| |
| static inline void htc_send_complete_poll_timer_stop(HTC_ENDPOINT * |
| pEndpoint) { |
| LOCK_HTC_TX(pEndpoint->target); |
| if (pEndpoint->ul_poll_timer_active) { |
| /* qdf_timer_stop(&pEndpoint->ul_poll_timer); */ |
| pEndpoint->ul_poll_timer_active = 0; |
| } |
| UNLOCK_HTC_TX(pEndpoint->target); |
| } |
| |
| static inline void htc_send_complete_poll_timer_start(HTC_ENDPOINT * |
| pEndpoint) { |
| LOCK_HTC_TX(pEndpoint->target); |
| if (pEndpoint->ul_outstanding_cnt |
| && !pEndpoint->ul_poll_timer_active) { |
| /* |
| qdf_timer_start( |
| &pEndpoint->ul_poll_timer, HTC_POLL_CLEANUP_PERIOD_MS); |
| */ |
| pEndpoint->ul_poll_timer_active = 1; |
| } |
| UNLOCK_HTC_TX(pEndpoint->target); |
| } |
| |
| static inline void |
| htc_send_complete_check(HTC_ENDPOINT *pEndpoint, int force) { |
| /* |
| * Stop the polling-cleanup timer that will result in a later call to |
| * this function. It may get started again below, if there are still |
| * outsending sends. |
| */ |
| htc_send_complete_poll_timer_stop(pEndpoint); |
| /* |
| * Check whether HIF has any prior sends that have finished, |
| * have not had the post-processing done. |
| */ |
| hif_send_complete_check(pEndpoint->target->hif_dev, |
| pEndpoint->UL_PipeID, force); |
| /* |
| * If there are still outstanding sends after polling, start a timer |
| * to check again a little later. |
| */ |
| htc_send_complete_poll_timer_start(pEndpoint); |
| } |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #ifndef DEBUG_BUNDLE |
| #define DEBUG_BUNDLE 0 |
| #endif |
| |
| #if defined(HIF_SDIO) || defined(HIF_USB) |
| #ifndef ENABLE_BUNDLE_TX |
| #define ENABLE_BUNDLE_TX 1 |
| #endif |
| |
| #ifndef ENABLE_BUNDLE_RX |
| #define ENABLE_BUNDLE_RX 1 |
| #endif |
| #endif /*defined(HIF_SDIO) || defined(HIF_USB)*/ |
| #endif /* !_HTC_HOST_INTERNAL_H_ */ |