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view src/gpf2/tst/drv/mux.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 cd37d228dae0
children
line wrap: on
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/* 
+------------------------------------------------------------------------------
|  File:       mux.h
+------------------------------------------------------------------------------
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Definitions for the Protocol Stack Entity mux.
+----------------------------------------------------------------------------- 
*/ 

#ifndef MUX_H
#define MUX_H

#ifndef _ENTITY_PREFIXED
  #define _ENTITY_PREFIXED(N) tst_##N
#endif

/*==== INCLUDES =============================================================*/

#ifndef SAP_DTI2
#define SAP_DTI2
#endif

/*==== CONSTS ===============================================================*/

#define ENCODE_OFFSET    0             /* Bitoffset for encoding/decoding */
#define hCommYYY         mux_hCommYYY  /* Communication handle */

/* Timer definitions */
#define T001             0
#define T002             1

/* Timer durations */
#define T001_VALUE       1000          /* 1 second */
#define T002_VALUE       3000          /* 3 seconds */

/*
 * information for dti library
 */
#define MTST_DTI_DN_INTERFACE  0
#define MTST_DTI_DN_CHANNEL    0
#define MTST_DTI_DN_INSTANCE   0

/* make the pei_create, .. functions unique */
#define pei_create       mux_pei_create

#define pei_dti_dti_connect_req    _ENTITY_PREFIXED(pei_dti_dti_connect_req)
#define pei_dti_dti_connect_cnf    _ENTITY_PREFIXED(pei_dti_dti_connect_cnf)
#define pei_dti_dti_connect_ind    _ENTITY_PREFIXED(pei_dti_dti_connect_ind)
#define pei_dti_dti_connect_res    _ENTITY_PREFIXED(pei_dti_dti_connect_res)
#define pei_dti_dti_disconnect_req _ENTITY_PREFIXED(pei_dti_dti_disconnect_req)
#define pei_dti_dti_disconnect_ind _ENTITY_PREFIXED(pei_dti_dti_disconnect_ind)
#define pei_dti_dti_ready_ind      _ENTITY_PREFIXED(pei_dti_dti_ready_ind)
#define pei_dti_dti_data_req       _ENTITY_PREFIXED(pei_dti_dti_data_req)
#define pei_dti_dti_data_ind       _ENTITY_PREFIXED(pei_dti_dti_data_ind)
#define pei_dti_dti_getdata_req    _ENTITY_PREFIXED(pei_dti_dti_getdata_req)
#ifdef _SIMULATION_
#define pei_dti_dti_data_test_req  _ENTITY_PREFIXED(pei_dti_dti_data_test_req)
#define pei_dti_dti_data_test_ind  _ENTITY_PREFIXED(pei_dti_dti_data_test_ind)
#endif /* _SIMLUATION_ */

#define pei_sig_callback                                    \
        _ENTITY_PREFIXED(pei_sig_callback                 )
#define sig_dti_pei_connection_opened_ind                   \
        _ENTITY_PREFIXED(sig_dti_pei_connection_opened_ind)
#define sig_dti_pei_connection_closed_ind                   \
        _ENTITY_PREFIXED(sig_dti_pei_connection_closed_ind)
#define sig_dti_pei_tx_buffer_full_ind                       \
        _ENTITY_PREFIXED(sig_dti_pei_tx_buffer_full_ind    )
#define sig_dti_pei_tx_buffer_ready_ind                      \
        _ENTITY_PREFIXED(sig_dti_pei_tx_buffer_ready_ind   )
#define sig_dti_pei_data_received_ind                        \
        _ENTITY_PREFIXED(sig_dti_pei_data_received_ind     )
        

#ifdef MUX_PEI_C
static const T_STR_IND tmr_name_to_ind[] = 
{
  { "T001",   T001 },
  { "T002",   T002 },
  { NULL,     0 }
};
#endif

#define MAX_SEND_BUF_COUNT  40 

/*==== TYPES =================================================================*/

/* MUX global typedefs */

typedef struct
{
  USHORT Handle;
  UBYTE  dti_state; /* state variable for dti library */
  USHORT EnabledSignalType;
  T_DRV_CB_FUNC Callback;
  T_HANDLE h_comm_mtst;
  char Connected;
  T_desc2 *recv_data;
  USHORT send_data_buf_count;
} T_MUX_DATA;

/*==== EXPORTS ===============================================================*/

short pei_create (T_PEI_INFO const **info);

/*
 * wrapping functions for dtilib primitives
 */

EXTERN const void pei_dti_dti_connect_ind (
              T_DTI2_CONNECT_IND   *dti_connect_ind);
EXTERN const void pei_dti_dti_connect_cnf (
              T_DTI2_CONNECT_CNF   *dti_connect_cnf);
EXTERN const void pei_dti_dti_disconnect_ind (
              T_DTI2_DISCONNECT_IND   *dti_disconnect_ind);
EXTERN const void pei_dti_dti_data_ind (
              T_DTI2_DATA_IND   *dti_data_ind);
EXTERN const void pei_dti_dti_ready_ind (
              T_DTI2_READY_IND   *dti_ready_ind);
#ifdef _SIMULATION_
EXTERN const void pei_dti_dti_data_test_ind (
              T_DTI2_DATA_TEST_IND   *dti_data_test_ind);
#endif  /* _SIMULATION_ */

/*
 * this function is called by DTILIB
 */
EXTERN void         pei_sig_callback
                          (
                            U8               instance,
                            U8               interfac,
                            U8               channel, 
                            U8               reason,
                            T_DTI2_DATA_IND *dti_data2_ind
                          );

/*
 * these functions are called by pei_sig_callback
 */

EXTERN const void         sig_dti_pei_connection_opened_ind();
EXTERN const void         sig_dti_pei_connection_closed_ind();

EXTERN const void         sig_dti_pei_tx_buffer_full_ind();
EXTERN const void         sig_dti_pei_tx_buffer_ready_ind();

EXTERN const void         sig_dti_pei_data_received_ind
                          (
                            T_DTI2_DATA_IND *dti_data_req
                          );



#ifdef MUX_PEI_C

/* Entity data base */
T_MUX_DATA               mux_data;
/* DTI connection handle for DTI library      */
DTI_HANDLE               mtst_hDTI;

/* Communication handles */

#else  /* MUX_PEI_C */

/* Entity data base */
extern T_MUX_DATA        mux_data;
/* DTI connection handle for DTI library      */
EXTERN DTI_HANDLE        mtst_hDTI;

#endif /* MUX_PEI_C */

#endif /* !MUX_H */