149 lines
4.3 KiB
C
149 lines
4.3 KiB
C
/* k_pipe_util.c */
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/*
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* Copyright (c) 1997-2014 Wind River Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1) Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2) Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3) Neither the name of Wind River Systems nor the names of its contributors
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* may be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <micro_private.h>
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#include <k_pipe_util.h>
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#include <string.h>
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#include <toolchain.h>
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#include <sections.h>
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#include <misc/__assert.h>
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#define _ALL_OPT (0x000000FF)
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void DeListWaiter(struct k_args *pReqProc)
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{
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__ASSERT_NO_MSG(NULL != pReqProc->Head);
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REMOVE_ELM(pReqProc);
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pReqProc->Head = NULL;
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}
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void myfreetimer(struct k_timer **ppTimer)
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{
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if (*ppTimer) {
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_k_timer_delist(*ppTimer);
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FREETIMER(*ppTimer);
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*ppTimer = NULL;
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}
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}
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/* adapted from mailbox implementation of copypacket() */
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void mycopypacket(struct k_args **out, struct k_args *in)
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{
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GETARGS(*out);
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memcpy(*out, in, sizeof(struct k_args));
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(*out)->Ctxt.args = in;
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}
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int CalcFreeReaderSpace(struct k_args *pReaderList)
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{
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int iSize = 0;
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if (pReaderList) {
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struct k_args *pReader = pReaderList;
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while (pReader != NULL) {
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iSize += (pReader->Args.pipe_xfer_req.iSizeTotal -
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pReader->Args.pipe_xfer_req.iSizeXferred);
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pReader = pReader->Forw;
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}
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}
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return iSize;
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}
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int CalcAvailWriterData(struct k_args *pWriterList)
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{
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int iSize = 0;
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if (pWriterList) {
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struct k_args *pWriter = pWriterList;
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while (pWriter != NULL) {
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iSize += (pWriter->Args.pipe_xfer_req.iSizeTotal -
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pWriter->Args.pipe_xfer_req.iSizeXferred);
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pWriter = pWriter->Forw;
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}
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}
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return iSize;
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}
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K_PIPE_OPTION _k_pipe_option_get(K_ARGS_ARGS *args)
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{
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return (K_PIPE_OPTION)(args->pipe_xfer_req.ReqInfo.Params & _ALL_OPT);
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}
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void _k_pipe_option_set(K_ARGS_ARGS *args, K_PIPE_OPTION option)
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{
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/* Ensure that only the pipe option bits are modified */
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args->pipe_xfer_req.ReqInfo.Params &= (~_ALL_OPT);
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args->pipe_xfer_req.ReqInfo.Params |= (option & _ALL_OPT);
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}
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REQ_TYPE _k_pipe_request_type_get(K_ARGS_ARGS *args)
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{
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return (REQ_TYPE)(args->pipe_xfer_req.ReqInfo.Params & _ALLREQ);
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}
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void _k_pipe_request_type_set(K_ARGS_ARGS *args, REQ_TYPE ReqType)
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{
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/* Ensure that only the request type bits are modified */
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args->pipe_xfer_req.ReqInfo.Params &= (~_ALLREQ);
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args->pipe_xfer_req.ReqInfo.Params |= (ReqType & _ALLREQ);
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}
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TIME_TYPE _k_pipe_time_type_get(K_ARGS_ARGS *args)
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{
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return (TIME_TYPE)(args->pipe_xfer_req.ReqInfo.Params & _ALLTIME);
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}
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void _k_pipe_time_type_set(K_ARGS_ARGS *args, TIME_TYPE TimeType)
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{
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/* Ensure that only the time type bits are modified */
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args->pipe_xfer_req.ReqInfo.Params &= (~_ALLTIME);
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args->pipe_xfer_req.ReqInfo.Params |= (TimeType & _ALLTIME);
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}
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void _k_pipe_request_status_set(struct _pipe_xfer_req_arg *pipe_xfer_req,
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PIPE_REQUEST_STATUS status)
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{
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#ifdef CONFIG_OBJECT_MONITOR
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/*
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* if transition XFER_IDLE --> XFER_BUSY, TERM_XXX
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* increment pipe counter
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*/
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if (XFER_IDLE == pipe_xfer_req->status /* current (old) status */
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&& (XFER_BUSY | TERM_XXX) & status /* new status */) {
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(pipe_xfer_req->ReqInfo.pipe.ptr->Count)++;
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}
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#endif
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pipe_xfer_req->status = status;
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}
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