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view src/cs/layer1/gtt_include/ctm/diag_deinterleaver.h @ 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 945cf7f506b2
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) deinterleaver routine

*

*******************************************************************************

*/

#ifndef diag_deinterleaver_h

#define diag_deinterleaver_h "$Id: $"

#include "l1_confg.h"

/*

*******************************************************************************

*                         INCLUDE FILES

*******************************************************************************

*/



#include "init_interleaver.h"



/*

*******************************************************************************

*                         DECLARATION OF PROTOTYPES

*******************************************************************************

*/



/* ---------------------------------------------------------------------- */

/* diag_deinterleaver:                                                    */

/* Corresponding deinterleaver to diag_interleaver.                       */

/* An arbitrary number of bits can be interleaved, depending of the       */

/* length of the vector "in". 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 deinterleaver matrix.                    */

/* ---------------------------------------------------------------------- */



void diag_deinterleaver(WORD16 *out,

                        WORD16 *in,

                        WORD16 num_valid_bits,

                        interleaver_state_t *intl_state);



/* ---------------------------------------------------------------------- */

/* shift_deinterleaver:                                                   */

/* Shift of the deinterleaver buffer by <shift> samples.                  */

/* shift>0  -> shift to the right                                         */

/* shift<0  -> shift to the left                                          */

/* The elements from <insert_bits> are inserted into the resulting space. */

/* The vector <insert_bits> must have at least abs(shift) elements.       */

/* ---------------------------------------------------------------------- */



void shift_deinterleaver(WORD16 shift,

                         WORD16 *insert_bits,

                         interleaver_state_t *ptr_state);


#if(NEW_WKA_PATCH==1)
  void just_shift(WORD16 shift, WORD16* in_bits, interleaver_state_t *intl_state);
#endif

#if (TTY_SYNC_MCU == 1)
  void flush_and_shift_deinterleaver(WORD16 shift,WORD16 *insert_bits,interleaver_state_t *ptr_state);
#endif

#if(TTY_SYNC_MCU_2==1)
  WORD16 flush_diag_deint(WORD16 *out, WORD16 *in, interleaver_state_t *intl_state);
  void zero_pad_deint(interleaver_state_t *intl_state);
#endif

#if(OPTIMISED==1)
void new_diag_deinterleaver(WORD16 *out,
                        WORD16 jump,
                        WORD16 *flush_vector,
                        WORD16 *in,
                        WORD16 num_valid_bits,
                        interleaver_state_t *intl_state);
#endif

#endif