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view src/cs/drivers/drv_app/fchg/fchg_env.c @ 275:79cfefc1e2b4

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audio mode load: gracefully handle mode files of wrong AEC version Unfortunately our change of enabling L1_NEW_AEC (which is necessary in order to bring our Calypso ARM fw into match with the underlying DSP reality) brings along a change in the audio mode file binary format and file size - all those new tunable AEC parameters do need to be stored somewhere, after all. But we already have existing mode files in the old format, and setting AEC config to garbage when loading old audio modes (which is what would happen without the present change) is not an appealing proposition. The solution implemented in the present change is as follows: the audio mode loading code checks the file size, and if it differs from the active version of T_AUDIO_MODE, the T_AUDIO_AEC_CFG structure is cleared - set to the default (disabled AEC) for the compiled type of AEC. We got lucky in that this varying T_AUDIO_AEC_CFG structure sits at the end of T_AUDIO_MODE!
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 30 Jul 2021 02:55:48 +0000
parents 27f17fbf0657
children
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/*
 * This module provides the glue to the RiViera environment
 * for our FCHG SWE.
 */

#include "fchg/fchg_env.h"
#include "rv/rv_general.h"
#include "rvf/rvf_api.h"
#include "rvm/rvm_priorities.h"
#include "rvm/rvm_api.h"
#include "rvm/rvm_use_id_list.h"
#include <string.h>

/* Define a pointer to the PWR environment control block */
T_PWR_CTRL_BLOCK *pwr_ctrl = NULL;

/* Define global pointer to the error function */
static T_RVM_RETURN (*pwr_error_ft) (T_RVM_NAME    swe_name,
                                     T_RVM_RETURN  error_cause,
                                     T_RVM_ERROR_TYPE  error_type,
                                     T_RVM_STRING   error_msg);

T_RVM_RETURN fchg_get_info (T_RVM_INFO_SWE  *infoSWE)
{
   /* SWE info */

   infoSWE->swe_type = RVM_SWE_TYPE_4;
   infoSWE->type_info.type4.swe_use_id = FCHG_USE_ID;
   memcpy( infoSWE->type_info.type4.swe_name, "FCHG", 5 );

   infoSWE->type_info.type4.stack_size = FCHG_STACK_SIZE;
   infoSWE->type_info.type4.priority   = RVM_FCHG_TASK_PRIORITY;

   /* memory bank info */
   infoSWE->type_info.type4.nb_mem_bank = 1;

   memcpy ((UINT8 *) infoSWE->type_info.type4.mem_bank[0].bank_name, "FCHG_PRIM", 10);
   infoSWE->type_info.type4.mem_bank[0].initial_params.size          = FCHG_MB_PRIM_SIZE;
   infoSWE->type_info.type4.mem_bank[0].initial_params.watermark     = FCHG_MB_PRIM_WATERMARK;

   /* linked SWE info: we use FFS and ETM (for BSIM) */
   infoSWE->type_info.type4.nb_linked_swe    = 2;
   infoSWE->type_info.type4.linked_swe_id[0] = FFS_USE_ID;
   infoSWE->type_info.type4.linked_swe_id[1] = ETM_USE_ID;

   /* generic functions */
   infoSWE->type_info.type4.set_info = fchg_set_info;
   infoSWE->type_info.type4.init     = fchg_init;
   infoSWE->type_info.type4.core     = fchg_core;
   infoSWE->type_info.type4.stop     = fchg_stop;
   infoSWE->type_info.type4.kill     = fchg_kill;

   /* Set the return path */
   infoSWE->type_info.type4.return_path.callback_func	= NULL;
   infoSWE->type_info.type4.return_path.addr_id	      = 0;

   return RV_OK;
}

T_RVM_RETURN fchg_set_info(T_RVF_ADDR_ID   addr_id,
                           T_RV_RETURN     return_path[],
                           T_RVF_MB_ID     mbId[],
                           T_RVM_RETURN  (*callBackFct) (T_RVM_NAME SWEntName,
                                                         T_RVM_RETURN errorCause,
                                                         T_RVM_ERROR_TYPE errorType,
                                                         T_RVM_STRING errorMsg))
{

    T_RVF_MB_STATUS   mb_status;

    mb_status = rvf_get_buf(mbId[0],sizeof(T_PWR_CTRL_BLOCK),(void **) &pwr_ctrl);
    if (mb_status == RVF_RED) 
    {
        rvf_send_trace("fchg_set_info: rvf_get_buf() failed", 35,
                       NULL_PARAM,
                       RV_TRACE_LEVEL_ERROR,
                       FCHG_USE_ID);
        return (RVM_MEMORY_ERR);
    }
    memset(pwr_ctrl, 0, sizeof(T_PWR_CTRL_BLOCK));

    /* store the pointer to the error function */
    pwr_error_ft = callBackFct ;

    /* Store the addr id */
    pwr_ctrl->addr_id = addr_id;

    /* Store the memory bank id */
    pwr_ctrl->prim_id = mbId[0];

    return RV_OK;
}

T_RVM_RETURN fchg_init(void)
{
   return RV_OK;
}

T_RVM_RETURN fchg_stop(void)
{
   return RV_OK;
}

T_RVM_RETURN fchg_kill(void)
{
   /* free all memory buffer previously allocated */
   rvf_free_buf ((void *) pwr_ctrl);

   return RV_OK;
}