137 lines
3.4 KiB
C
137 lines
3.4 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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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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(pReqProc->head != NULL);
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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 size = 0;
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if (pReaderList) {
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struct k_args *reader_ptr = pReaderList;
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while (reader_ptr != NULL) {
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size += (reader_ptr->args.pipe_xfer_req.total_size -
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reader_ptr->args.pipe_xfer_req.xferred_size);
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reader_ptr = reader_ptr->next;
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}
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}
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return size;
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}
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int CalcAvailWriterData(struct k_args *pWriterList)
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{
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int size = 0;
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if (pWriterList) {
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struct k_args *writer_ptr = pWriterList;
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while (writer_ptr != NULL) {
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size += (writer_ptr->args.pipe_xfer_req.total_size -
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writer_ptr->args.pipe_xfer_req.xferred_size);
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writer_ptr = writer_ptr->next;
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}
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}
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return size;
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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.req_info.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.req_info.params &= (~_ALL_OPT);
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args->pipe_xfer_req.req_info.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.req_info.params & _ALLREQ);
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}
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void _k_pipe_request_type_set(K_ARGS_ARGS *args, REQ_TYPE req_type)
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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.req_info.params &= (~_ALLREQ);
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args->pipe_xfer_req.req_info.params |= (req_type & _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.req_info.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.req_info.params &= (~_ALLTIME);
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args->pipe_xfer_req.req_info.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 (pipe_xfer_req->status == XFER_IDLE /* current (old) status */
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&& (XFER_BUSY | TERM_XXX) & status /* new status */) {
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(pipe_xfer_req->req_info.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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