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view src/cs/services/audio/audio_bgd/audio_bgd_task.c @ 629:3231dd9b38c1

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armio.c: make GPIOs 8 & 13 outputs driving 1 on all "classic" targets Calypso GPIOs 8 & 13 are pinmuxed with MCUEN1 & MCUEN2, respectively, and on powerup these pins are MCUEN, i.e., outputs driving 1. TI's code for C-Sample and earlier turns them into GPIOs configured as outputs also driving 1 - so far, so good - but TI's code for BOARD 41 (which covers D-Sample, Leonardo and all real world Calypso devices derived from the latter) switches them from MCUEN to GPIOs, but then leaves them as inputs. Given that the hardware powerup state of these two pins is outputs driving 1, every Calypso board design MUST be compatible with such driving; typically these GPIO signals will be either unused and unconnected or connected as outputs driving some peripheral. Turning these pins into GPIO inputs will result in floating inputs on every reasonably-wired board, thus I am convinced that this configuration is nothing but a bug on the part of whoever wrote this code at TI. This floating input bug had already been fixed earlier for GTA modem and FCDEV3B targets; the present change makes the fix unconditional for all "classic" targets. The newly affected targets are D-Sample, Leonardo, Tango and GTM900.
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 02 Jan 2020 05:38:26 +0000
parents 838eeafb0051
children
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/****************************************************************************/
/*                                                                          */
/*  Name        audio_bgd_task.c                                            */
/*                                                                          */
/*  Function    this file contains the main AUDIO BACKGROUND functionk      */
/*                                                                          */
/*  Version   1                                                             */
/*                                                                          */
/*  Date        Modification                                                */
/*  ------------------------------------                                    */
/*  19 June 2003  Create                                                    */
/*                                                                          */
/*  Author   Frederic Turgis                                                */
/*                                                                          */
/* (C) Copyright 2001 by Texas Instruments Incorporated, All Rights Reserved*/
/****************************************************************************/

#include "rv/rv_defined_swe.h"

#ifdef RVM_AUDIO_BGD_SWE

  #include "rv/rv_general.h"
  #include "audio/audio_bgd/audio_bgd_structs_i.h"
  #include "audio/audio_bgd/audio_bgd_macro_i.h"
  #include "audio/audio_bgd/audio_bgd_const_i.h"
  #include "audio/audio_bgd/audio_bgd_env_i.h"

  /********************************************************************************/
  /* Function         audio_bgd_core                                              */
  /*                                                                              */
  /* Description      Core of the audio background task, which waits for events   */
  /*                                                                              */
  /********************************************************************************/
  T_RV_RET audio_bgd_core(void)
  {
    /* Declare local variables */
    BOOLEAN       error         = FALSE;
    T_RV_HDR      *p_message    = NULL;
    UINT16        received_event= 0x0000;
    T_RV_RET      status;

    AUDIO_BGD_SEND_TRACE("AUDIO_BACKGROUD TASK started", RV_TRACE_LEVEL_DEBUG_HIGH);

    /* loop to process messages */
    while (error == FALSE)
    {
      /* Wait for the necessary events (all events and no time out). */
      received_event = rvf_wait ( AUDIO_BGD_ALL_EVENT_FLAGS, AUDIO_BGD_NOT_TIME_OUT);

      /* If an event is received, then ....*/
      if (received_event & AUDIO_BGD_TASK_MBOX_EVT_MASK)
      {
        /* Read the message in the audio mailbox */
        p_message = (T_RV_HDR *) rvf_read_mbox(AUDIO_BGD_MBOX);

        if (p_message != NULL)
        {
          p_audio_bgd_gbl_var->message_processed = FALSE;

          // Handle messages

          // Check message has been processed
          if (p_audio_bgd_gbl_var->message_processed == FALSE)
          {
            AUDIO_BGD_SEND_TRACE_PARAM(" AUDIO BGD ERROR (env). A wrong message is received ",
                                       p_message->msg_id, RV_TRACE_LEVEL_ERROR);
          }
          status = rvf_free_buf((T_RVF_BUFFER *)p_message);
          if (status != RVF_GREEN)
          {
            AUDIO_BGD_SEND_TRACE(" AUDIO BGD ERROR (env). Can't deallocate message",
                                 RV_TRACE_LEVEL_ERROR);
          }
        } // if (p_message != NULL)
        else
        {
          AUDIO_BGD_SEND_TRACE(" AUDIO BGD ERROR (env). Can't read the message received",
                               RV_TRACE_LEVEL_ERROR);
        }
      } // if (received_event & AUDIO_BGD_TASK_MBOX_EVT_MASK)

      /* If one of the occured events is unexpected (due to an unassigned */
      /* mailbox), then report an internal error.                         */
      if ( received_event & ~(AUDIO_BGD_TASK_MBOX_EVT_MASK) )
      {
        AUDIO_BGD_SEND_TRACE(" AUDIO BGD ERROR (env). One of the events is unexpected ",
                                    RV_TRACE_LEVEL_ERROR);

        error = TRUE;
      }
    } // while (error == FALSE)
    return(RV_INTERNAL_ERR);
  } /****************************** End of audio_bgd task function **************************/

#endif /* #ifdef RVM_AUDIO_BGD_SWE */