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view src/cs/layer1/gtt_include/ctm/diag_interleaver.h @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 4e78acac3d88
children
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/*
*******************************************************************************
*
*      COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
*      90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
*
*      The program(s) may be used and/or copied only with the
*      written permission from Ericsson or in accordance
*      with the terms and conditions stipulated in the agreement or
*      contract under which the program(s) have been supplied.
*
*******************************************************************************
*
*      File             : diag_interleaver.h
*      Purpose          : diagonal (chain) interleaver routine
*
*******************************************************************************
*/
#ifndef diag_interleaver_h
#define diag_interleaver_h "$Id: $"

/*
*******************************************************************************
*                         INCLUDE FILES
*******************************************************************************
*/

#include "init_interleaver.h"


/*
*******************************************************************************
*                         DECLARATION OF PROTOTYPES
*******************************************************************************
*/

/* ---------------------------------------------------------------------- */
/* diag_interleaver:                                                      */
/* Diagonal (chain) interleaver, based on block-by-block processing.      */
/* An arbitrary number of bits can be interleaved, depending of the       */
/* value num_bits. The vector "out", which must have the same             */
/* length than "in", contains the interleaved samples.                    */
/* All states (memory etc.) of the interleaver are stored in the variable */
/* *intl_state. Therefore, a pointer to this variable must be handled to  */
/* this function. This variable initially has to be initialized by the    */
/* function init_interleaver, which offers also the possibility to        */
/* specify the dimensions of the interleaver matrix.                      */
/* ---------------------------------------------------------------------- */

void diag_interleaver(WORD16 *out,
                      WORD16 *in,
                      WORD16  num_bits,
                      interleaver_state_t *intl_state);

/* ---------------------------------------------------------------------- */
/* diag_interleaver_flush:                                                */
/* Execution of the diagonal (chain) interleaver without writing in new   */
/* samples. The number of calculated output samples is returned via the   */
/* value *num_bits.                                                       */
/* ---------------------------------------------------------------------- */

void diag_interleaver_flush(WORD16 *out,
                            WORD16 *num_bits,
                            interleaver_state_t *intl_state);

#endif