579 lines
31 KiB
C
579 lines
31 KiB
C
//------------------------------------------------------------------------------
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// ISC License (ISC)
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//
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// Copyright (c) 2007-2010, The Linux Foundation
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// All rights reserved.
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// Software was previously licensed under ISC license by Qualcomm Atheros, Inc.
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//
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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//
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//
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//------------------------------------------------------------------------------
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//==============================================================================
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// Author(s): ="Atheros"
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//==============================================================================
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#ifndef _HTC_API_H_
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#define _HTC_API_H_
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#include "htc_packet.h"
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#include <htc.h>
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#include <htc_services.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/* TODO.. for BMI */
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#define ENDPOINT1 0
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// TODO -remove me, but we have to fix BMI first
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#define HTC_MAILBOX_NUM_MAX 4
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/* this is the amount of header room required by users of HTC */
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#define HTC_HEADER_LEN HTC_HDR_LENGTH
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typedef void *HTC_HANDLE;
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typedef A_UINT16 HTC_SERVICE_ID;
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typedef struct _HTC_INIT_INFO {
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void *pContext; /* context for target failure notification */
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void (*TargetFailure)(void *Instance, A_STATUS Status);
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} HTC_INIT_INFO;
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/* per service connection send completion */
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typedef void (*HTC_EP_SEND_PKT_COMPLETE)(void *,HTC_PACKET *);
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/* per service connection callback when a plurality of packets have been sent
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* The HTC_PACKET_QUEUE is a temporary queue object (e.g. freed on return from the callback)
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* to hold a list of completed send packets.
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* If the handler cannot fully traverse the packet queue before returning, it should
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* transfer the items of the queue into the caller's private queue using:
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* HTC_PACKET_ENQUEUE() */
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typedef void (*HTC_EP_SEND_PKT_COMP_MULTIPLE)(void *,HTC_PACKET_QUEUE *);
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/* per service connection pkt received */
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typedef void (*HTC_EP_RECV_PKT)(void *,HTC_PACKET *);
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/* per service connection callback when a plurality of packets are received
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* The HTC_PACKET_QUEUE is a temporary queue object (e.g. freed on return from the callback)
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* to hold a list of recv packets.
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* If the handler cannot fully traverse the packet queue before returning, it should
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* transfer the items of the queue into the caller's private queue using:
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* HTC_PACKET_ENQUEUE() */
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typedef void (*HTC_EP_RECV_PKT_MULTIPLE)(void *,HTC_PACKET_QUEUE *);
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/* Optional per service connection receive buffer re-fill callback,
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* On some OSes (like Linux) packets are allocated from a global pool and indicated up
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* to the network stack. The driver never gets the packets back from the OS. For these OSes
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* a refill callback can be used to allocate and re-queue buffers into HTC.
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*
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* On other OSes, the network stack can call into the driver's OS-specifc "return_packet" handler and
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* the driver can re-queue these buffers into HTC. In this regard a refill callback is
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* unnecessary */
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typedef void (*HTC_EP_RECV_REFILL)(void *, HTC_ENDPOINT_ID Endpoint);
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/* Optional per service connection receive buffer allocation callback.
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* On some systems packet buffers are an extremely limited resource. Rather than
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* queue largest-possible-sized buffers to HTC, some systems would rather
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* allocate a specific size as the packet is received. The trade off is
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* slightly more processing (callback invoked for each RX packet)
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* for the benefit of committing fewer buffer resources into HTC.
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*
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* The callback is provided the length of the pending packet to fetch. This includes the
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* HTC header length plus the length of payload. The callback can return a pointer to
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* the allocated HTC packet for immediate use.
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*
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* Alternatively a variant of this handler can be used to allocate large receive packets as needed.
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* For example an application can use the refill mechanism for normal packets and the recv-alloc mechanism to
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* handle the case where a large packet buffer is required. This can significantly reduce the
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* amount of "committed" memory used to receive packets.
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*
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* */
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typedef HTC_PACKET *(*HTC_EP_RECV_ALLOC)(void *, HTC_ENDPOINT_ID Endpoint, int Length);
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typedef enum _HTC_SEND_FULL_ACTION {
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HTC_SEND_FULL_KEEP = 0, /* packet that overflowed should be kept in the queue */
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HTC_SEND_FULL_DROP = 1, /* packet that overflowed should be dropped */
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} HTC_SEND_FULL_ACTION;
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/* Optional per service connection callback when a send queue is full. This can occur if the
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* host continues queueing up TX packets faster than credits can arrive
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* To prevent the host (on some Oses like Linux) from continuously queueing packets
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* and consuming resources, this callback is provided so that that the host
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* can disable TX in the subsystem (i.e. network stack).
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* This callback is invoked for each packet that "overflows" the HTC queue. The callback can
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* determine whether the new packet that overflowed the queue can be kept (HTC_SEND_FULL_KEEP) or
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* dropped (HTC_SEND_FULL_DROP). If a packet is dropped, the EpTxComplete handler will be called
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* and the packet's status field will be set to A_NO_RESOURCE.
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* Other OSes require a "per-packet" indication for each completed TX packet, this
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* closed loop mechanism will prevent the network stack from overunning the NIC
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* The packet to keep or drop is passed for inspection to the registered handler the handler
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* must ONLY inspect the packet, it may not free or reclaim the packet. */
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typedef HTC_SEND_FULL_ACTION (*HTC_EP_SEND_QUEUE_FULL)(void *, HTC_PACKET *pPacket);
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typedef struct _HTC_EP_CALLBACKS {
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void *pContext; /* context for each callback */
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HTC_EP_SEND_PKT_COMPLETE EpTxComplete; /* tx completion callback for connected endpoint */
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HTC_EP_RECV_PKT EpRecv; /* receive callback for connected endpoint */
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HTC_EP_RECV_REFILL EpRecvRefill; /* OPTIONAL receive re-fill callback for connected endpoint */
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HTC_EP_SEND_QUEUE_FULL EpSendFull; /* OPTIONAL send full callback */
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HTC_EP_RECV_ALLOC EpRecvAlloc; /* OPTIONAL recv allocation callback */
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HTC_EP_RECV_ALLOC EpRecvAllocThresh; /* OPTIONAL recv allocation callback based on a threshold */
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HTC_EP_SEND_PKT_COMP_MULTIPLE EpTxCompleteMultiple; /* OPTIONAL completion handler for multiple complete
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indications (EpTxComplete must be NULL) */
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HTC_EP_RECV_PKT_MULTIPLE EpRecvPktMultiple; /* OPTIONAL completion handler for multiple
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recv packet indications (EpRecv must be NULL) */
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int RecvAllocThreshold; /* if EpRecvAllocThresh is non-NULL, HTC will compare the
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threshold value to the current recv packet length and invoke
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the EpRecvAllocThresh callback to acquire a packet buffer */
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int RecvRefillWaterMark; /* if a EpRecvRefill handler is provided, this value
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can be used to set a trigger refill callback
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when the recv queue drops below this value
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if set to 0, the refill is only called when packets
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are empty */
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} HTC_EP_CALLBACKS;
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/* service connection information */
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typedef struct _HTC_SERVICE_CONNECT_REQ {
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HTC_SERVICE_ID ServiceID; /* service ID to connect to */
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A_UINT16 ConnectionFlags; /* connection flags, see htc protocol definition */
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A_UINT8 *pMetaData; /* ptr to optional service-specific meta-data */
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A_UINT8 MetaDataLength; /* optional meta data length */
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HTC_EP_CALLBACKS EpCallbacks; /* endpoint callbacks */
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int MaxSendQueueDepth; /* maximum depth of any send queue */
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A_UINT32 LocalConnectionFlags; /* HTC flags for the host-side (local) connection */
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unsigned int MaxSendMsgSize; /* override max message size in send direction */
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} HTC_SERVICE_CONNECT_REQ;
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#define HTC_LOCAL_CONN_FLAGS_ENABLE_SEND_BUNDLE_PADDING (1 << 0) /* enable send bundle padding for this endpoint */
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/* service connection response information */
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typedef struct _HTC_SERVICE_CONNECT_RESP {
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A_UINT8 *pMetaData; /* caller supplied buffer to optional meta-data */
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A_UINT8 BufferLength; /* length of caller supplied buffer */
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A_UINT8 ActualLength; /* actual length of meta data */
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HTC_ENDPOINT_ID Endpoint; /* endpoint to communicate over */
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unsigned int MaxMsgLength; /* max length of all messages over this endpoint */
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A_UINT8 ConnectRespCode; /* connect response code from target */
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} HTC_SERVICE_CONNECT_RESP;
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/* endpoint distribution structure */
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typedef struct _HTC_ENDPOINT_CREDIT_DIST {
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struct _HTC_ENDPOINT_CREDIT_DIST *pNext;
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struct _HTC_ENDPOINT_CREDIT_DIST *pPrev;
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HTC_SERVICE_ID ServiceID; /* Service ID (set by HTC) */
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HTC_ENDPOINT_ID Endpoint; /* endpoint for this distribution struct (set by HTC) */
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A_UINT32 DistFlags; /* distribution flags, distribution function can
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set default activity using SET_EP_ACTIVE() macro */
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int TxCreditsNorm; /* credits for normal operation, anything above this
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indicates the endpoint is over-subscribed, this field
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is only relevant to the credit distribution function */
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int TxCreditsMin; /* floor for credit distribution, this field is
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only relevant to the credit distribution function */
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int TxCreditsAssigned; /* number of credits assigned to this EP, this field
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is only relevant to the credit dist function */
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int TxCredits; /* current credits available, this field is used by
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HTC to determine whether a message can be sent or
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must be queued */
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int TxCreditsToDist; /* pending credits to distribute on this endpoint, this
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is set by HTC when credit reports arrive.
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The credit distribution functions sets this to zero
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when it distributes the credits */
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int TxCreditsSeek; /* this is the number of credits that the current pending TX
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packet needs to transmit. This is set by HTC when
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and endpoint needs credits in order to transmit */
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int TxCreditSize; /* size in bytes of each credit (set by HTC) */
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int TxCreditsPerMaxMsg; /* credits required for a maximum sized messages (set by HTC) */
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void *pHTCReserved; /* reserved for HTC use */
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int TxQueueDepth; /* current depth of TX queue , i.e. messages waiting for credits
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This field is valid only when HTC_CREDIT_DIST_ACTIVITY_CHANGE
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or HTC_CREDIT_DIST_SEND_COMPLETE is indicated on an endpoint
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that has non-zero credits to recover
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*/
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} HTC_ENDPOINT_CREDIT_DIST;
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#define HTC_EP_ACTIVE ((A_UINT32) (1u << 31))
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/* macro to check if an endpoint has gone active, useful for credit
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* distributions */
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#define IS_EP_ACTIVE(epDist) ((epDist)->DistFlags & HTC_EP_ACTIVE)
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#define SET_EP_ACTIVE(epDist) (epDist)->DistFlags |= HTC_EP_ACTIVE
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/* credit distibution code that is passed into the distrbution function,
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* there are mandatory and optional codes that must be handled */
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typedef enum _HTC_CREDIT_DIST_REASON {
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HTC_CREDIT_DIST_SEND_COMPLETE = 0, /* credits available as a result of completed
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send operations (MANDATORY) resulting in credit reports */
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HTC_CREDIT_DIST_ACTIVITY_CHANGE = 1, /* a change in endpoint activity occured (OPTIONAL) */
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HTC_CREDIT_DIST_SEEK_CREDITS, /* an endpoint needs to "seek" credits (OPTIONAL) */
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HTC_DUMP_CREDIT_STATE /* for debugging, dump any state information that is kept by
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the distribution function */
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} HTC_CREDIT_DIST_REASON;
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typedef void (*HTC_CREDIT_DIST_CALLBACK)(void *Context,
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HTC_ENDPOINT_CREDIT_DIST *pEPList,
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HTC_CREDIT_DIST_REASON Reason);
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typedef void (*HTC_CREDIT_INIT_CALLBACK)(void *Context,
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HTC_ENDPOINT_CREDIT_DIST *pEPList,
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int TotalCredits);
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/* endpoint statistics action */
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typedef enum _HTC_ENDPOINT_STAT_ACTION {
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HTC_EP_STAT_SAMPLE = 0, /* only read statistics */
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HTC_EP_STAT_SAMPLE_AND_CLEAR = 1, /* sample and immediately clear statistics */
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HTC_EP_STAT_CLEAR /* clear only */
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} HTC_ENDPOINT_STAT_ACTION;
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/* endpoint statistics */
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typedef struct _HTC_ENDPOINT_STATS {
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A_UINT32 TxCreditLowIndications; /* number of times the host set the credit-low flag in a send message on
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this endpoint */
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A_UINT32 TxIssued; /* running count of total TX packets issued */
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A_UINT32 TxPacketsBundled; /* running count of TX packets that were issued in bundles */
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A_UINT32 TxBundles; /* running count of TX bundles that were issued */
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A_UINT32 TxDropped; /* tx packets that were dropped */
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A_UINT32 TxCreditRpts; /* running count of total credit reports received for this endpoint */
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A_UINT32 TxCreditRptsFromRx; /* credit reports received from this endpoint's RX packets */
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A_UINT32 TxCreditRptsFromOther; /* credit reports received from RX packets of other endpoints */
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A_UINT32 TxCreditRptsFromEp0; /* credit reports received from endpoint 0 RX packets */
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A_UINT32 TxCreditsFromRx; /* count of credits received via Rx packets on this endpoint */
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A_UINT32 TxCreditsFromOther; /* count of credits received via another endpoint */
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A_UINT32 TxCreditsFromEp0; /* count of credits received via another endpoint */
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A_UINT32 TxCreditsConsummed; /* count of consummed credits */
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A_UINT32 TxCreditsReturned; /* count of credits returned */
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A_UINT32 RxReceived; /* count of RX packets received */
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A_UINT32 RxLookAheads; /* count of lookahead records
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found in messages received on this endpoint */
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A_UINT32 RxPacketsBundled; /* count of recv packets received in a bundle */
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A_UINT32 RxBundleLookAheads; /* count of number of bundled lookaheads */
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A_UINT32 RxBundleIndFromHdr; /* count of the number of bundle indications from the HTC header */
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A_UINT32 RxAllocThreshHit; /* count of the number of times the recv allocation threshhold was hit */
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A_UINT32 RxAllocThreshBytes; /* total number of bytes */
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} HTC_ENDPOINT_STATS;
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/* ------ Function Prototypes ------ */
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Create an instance of HTC over the underlying HIF device
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@function name: HTCCreate
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@input: HifDevice - hif device handle,
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pInfo - initialization information
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@output:
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@return: HTC_HANDLE on success, NULL on failure
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@notes:
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@example:
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@see also: HTCDestroy
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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HTC_HANDLE HTCCreate(void *HifDevice, HTC_INIT_INFO *pInfo);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Get the underlying HIF device handle
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@function name: HTCGetHifDevice
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@input: HTCHandle - handle passed into the AddInstance callback
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@output:
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@return: opaque HIF device handle usable in HIF API calls.
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@notes:
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@example:
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@see also:
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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void *HTCGetHifDevice(HTC_HANDLE HTCHandle);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Set credit distribution parameters
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@function name: HTCSetCreditDistribution
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@input: HTCHandle - HTC handle
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pCreditDistCont - caller supplied context to pass into distribution functions
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CreditDistFunc - Distribution function callback
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CreditDistInit - Credit Distribution initialization callback
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ServicePriorityOrder - Array containing list of service IDs, lowest index is highest
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priority
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ListLength - number of elements in ServicePriorityOrder
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@output:
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@return:
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@notes: The user can set a custom credit distribution function to handle special requirements
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for each endpoint. A default credit distribution routine can be used by setting
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CreditInitFunc to NULL. The default credit distribution is only provided for simple
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"fair" credit distribution without regard to any prioritization.
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@example:
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@see also:
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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void HTCSetCreditDistribution(HTC_HANDLE HTCHandle,
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void *pCreditDistContext,
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HTC_CREDIT_DIST_CALLBACK CreditDistFunc,
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HTC_CREDIT_INIT_CALLBACK CreditInitFunc,
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HTC_SERVICE_ID ServicePriorityOrder[],
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int ListLength);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Wait for the target to indicate the HTC layer is ready
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@function name: HTCWaitTarget
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@input: HTCHandle - HTC handle
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@output:
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@return:
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@notes: This API blocks until the target responds with an HTC ready message.
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The caller should not connect services until the target has indicated it is
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ready.
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@example:
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@see also: HTCConnectService
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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A_STATUS HTCWaitTarget(HTC_HANDLE HTCHandle);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Start target service communications
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@function name: HTCStart
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@input: HTCHandle - HTC handle
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@output:
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@return:
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@notes: This API indicates to the target that the service connection phase is complete
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and the target can freely start all connected services. This API should only be
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called AFTER all service connections have been made. TCStart will issue a
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SETUP_COMPLETE message to the target to indicate that all service connections
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have been made and the target can start communicating over the endpoints.
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@example:
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@see also: HTCConnectService
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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A_STATUS HTCStart(HTC_HANDLE HTCHandle);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Add receive packet to HTC
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@function name: HTCAddReceivePkt
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@input: HTCHandle - HTC handle
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pPacket - HTC receive packet to add
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@output:
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@return: A_OK on success
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@notes: user must supply HTC packets for capturing incomming HTC frames. The caller
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must initialize each HTC packet using the SET_HTC_PACKET_INFO_RX_REFILL()
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macro.
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@example:
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@see also:
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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A_STATUS HTCAddReceivePkt(HTC_HANDLE HTCHandle, HTC_PACKET *pPacket);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Connect to an HTC service
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@function name: HTCConnectService
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@input: HTCHandle - HTC handle
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pReq - connection details
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@output: pResp - connection response
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@return:
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@notes: Service connections must be performed before HTCStart. User provides callback handlers
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for various endpoint events.
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@example:
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@see also: HTCStart
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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A_STATUS HTCConnectService(HTC_HANDLE HTCHandle,
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HTC_SERVICE_CONNECT_REQ *pReq,
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HTC_SERVICE_CONNECT_RESP *pResp);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Send an HTC packet
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@function name: HTCSendPkt
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@input: HTCHandle - HTC handle
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pPacket - packet to send
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@output:
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@return: A_OK
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@notes: Caller must initialize packet using SET_HTC_PACKET_INFO_TX() macro.
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This interface is fully asynchronous. On error, HTC SendPkt will
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call the registered Endpoint callback to cleanup the packet.
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@example:
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@see also: HTCFlushEndpoint
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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A_STATUS HTCSendPkt(HTC_HANDLE HTCHandle, HTC_PACKET *pPacket);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Stop HTC service communications
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@function name: HTCStop
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@input: HTCHandle - HTC handle
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@output:
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@return:
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@notes: HTC communications is halted. All receive and pending TX packets will
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be flushed.
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@example:
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@see also:
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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void HTCStop(HTC_HANDLE HTCHandle);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Destory HTC service
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@function name: HTCDestroy
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@input: HTCHandle
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@output:
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@return:
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@notes: This cleans up all resources allocated by HTCCreate().
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@example:
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@see also: HTCCreate
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+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
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void HTCDestroy(HTC_HANDLE HTCHandle);
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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@desc: Flush pending TX packets
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@function name: HTCFlushEndpoint
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@input: HTCHandle - HTC handle
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Endpoint - Endpoint to flush
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Tag - flush tag
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@output:
|
|
@return:
|
|
@notes: The Tag parameter is used to selectively flush packets with matching tags.
|
|
The value of 0 forces all packets to be flush regardless of tag.
|
|
@example:
|
|
@see also: HTCSendPkt
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
void HTCFlushEndpoint(HTC_HANDLE HTCHandle, HTC_ENDPOINT_ID Endpoint, HTC_TX_TAG Tag);
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Dump credit distribution state
|
|
@function name: HTCDumpCreditStates
|
|
@input: HTCHandle - HTC handle
|
|
@output:
|
|
@return:
|
|
@notes: This dumps all credit distribution information to the debugger
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
void HTCDumpCreditStates(HTC_HANDLE HTCHandle);
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Indicate a traffic activity change on an endpoint
|
|
@function name: HTCIndicateActivityChange
|
|
@input: HTCHandle - HTC handle
|
|
Endpoint - endpoint in which activity has changed
|
|
Active - TRUE if active, FALSE if it has become inactive
|
|
@output:
|
|
@return:
|
|
@notes: This triggers the registered credit distribution function to
|
|
re-adjust credits for active/inactive endpoints.
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
void HTCIndicateActivityChange(HTC_HANDLE HTCHandle,
|
|
HTC_ENDPOINT_ID Endpoint,
|
|
A_BOOL Active);
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Get endpoint statistics
|
|
@function name: HTCGetEndpointStatistics
|
|
@input: HTCHandle - HTC handle
|
|
Endpoint - Endpoint identifier
|
|
Action - action to take with statistics
|
|
@output:
|
|
pStats - statistics that were sampled (can be NULL if Action is HTC_EP_STAT_CLEAR)
|
|
|
|
@return: TRUE if statistics profiling is enabled, otherwise FALSE.
|
|
|
|
@notes: Statistics is a compile-time option and this function may return FALSE
|
|
if HTC is not compiled with profiling.
|
|
|
|
The caller can specify the statistic "action" to take when sampling
|
|
the statistics. This includes:
|
|
|
|
HTC_EP_STAT_SAMPLE: The pStats structure is filled with the current values.
|
|
HTC_EP_STAT_SAMPLE_AND_CLEAR: The structure is filled and the current statistics
|
|
are cleared.
|
|
HTC_EP_STAT_CLEA : the statistics are cleared, the called can pass a NULL value for
|
|
pStats
|
|
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
A_BOOL HTCGetEndpointStatistics(HTC_HANDLE HTCHandle,
|
|
HTC_ENDPOINT_ID Endpoint,
|
|
HTC_ENDPOINT_STAT_ACTION Action,
|
|
HTC_ENDPOINT_STATS *pStats);
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Unblock HTC message reception
|
|
@function name: HTCUnblockRecv
|
|
@input: HTCHandle - HTC handle
|
|
@output:
|
|
@return:
|
|
@notes:
|
|
HTC will block the receiver if the EpRecvAlloc callback fails to provide a packet.
|
|
The caller can use this API to indicate to HTC when resources (buffers) are available
|
|
such that the receiver can be unblocked and HTC may re-attempt fetching the pending message.
|
|
|
|
This API is not required if the user uses the EpRecvRefill callback or uses the HTCAddReceivePacket()
|
|
API to recycle or provide receive packets to HTC.
|
|
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
void HTCUnblockRecv(HTC_HANDLE HTCHandle);
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: send a series of HTC packets
|
|
@function name: HTCSendPktsMultiple
|
|
@input: HTCHandle - HTC handle
|
|
pPktQueue - local queue holding packets to send
|
|
@output:
|
|
@return: A_OK
|
|
@notes: Caller must initialize each packet using SET_HTC_PACKET_INFO_TX() macro.
|
|
The queue must only contain packets directed at the same endpoint.
|
|
Caller supplies a pointer to an HTC_PACKET_QUEUE structure holding the TX packets in FIFO order.
|
|
This API will remove the packets from the pkt queue and place them into the HTC Tx Queue
|
|
and bundle messages where possible.
|
|
The caller may allocate the pkt queue on the stack to hold the packets.
|
|
This interface is fully asynchronous. On error, HTCSendPkts will
|
|
call the registered Endpoint callback to cleanup the packet.
|
|
@example:
|
|
@see also: HTCFlushEndpoint
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
A_STATUS HTCSendPktsMultiple(HTC_HANDLE HTCHandle, HTC_PACKET_QUEUE *pPktQueue);
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Add multiple receive packets to HTC
|
|
@function name: HTCAddReceivePktMultiple
|
|
@input: HTCHandle - HTC handle
|
|
pPktQueue - HTC receive packet queue holding packets to add
|
|
@output:
|
|
@return: A_OK on success
|
|
@notes: user must supply HTC packets for capturing incomming HTC frames. The caller
|
|
must initialize each HTC packet using the SET_HTC_PACKET_INFO_RX_REFILL()
|
|
macro. The queue must only contain recv packets for the same endpoint.
|
|
Caller supplies a pointer to an HTC_PACKET_QUEUE structure holding the recv packet.
|
|
This API will remove the packets from the pkt queue and place them into internal
|
|
recv packet list.
|
|
The caller may allocate the pkt queue on the stack to hold the packets.
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
A_STATUS HTCAddReceivePktMultiple(HTC_HANDLE HTCHandle, HTC_PACKET_QUEUE *pPktQueue);
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Check if an endpoint is marked active
|
|
@function name: HTCIsEndpointActive
|
|
@input: HTCHandle - HTC handle
|
|
Endpoint - endpoint to check for active state
|
|
@output:
|
|
@return: returns TRUE if Endpoint is Active
|
|
@notes:
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
A_BOOL HTCIsEndpointActive(HTC_HANDLE HTCHandle,
|
|
HTC_ENDPOINT_ID Endpoint);
|
|
|
|
|
|
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
|
|
@desc: Get the number of recv buffers currently queued into an HTC endpoint
|
|
@function name: HTCGetNumRecvBuffers
|
|
@input: HTCHandle - HTC handle
|
|
Endpoint - endpoint to check
|
|
@output:
|
|
@return: returns number of buffers in queue
|
|
@notes:
|
|
@example:
|
|
@see also:
|
|
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
|
|
int HTCGetNumRecvBuffers(HTC_HANDLE HTCHandle,
|
|
HTC_ENDPOINT_ID Endpoint);
|
|
|
|
/* internally used functions for testing... */
|
|
void HTCEnableRecv(HTC_HANDLE HTCHandle);
|
|
void HTCDisableRecv(HTC_HANDLE HTCHandle);
|
|
A_STATUS HTCWaitForPendingRecv(HTC_HANDLE HTCHandle,
|
|
A_UINT32 TimeoutInMs,
|
|
A_BOOL *pbIsRecvPending);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _HTC_API_H_ */
|