view src/gpf2/inc/pei.h @ 629:3231dd9b38c1

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 864b8cc0cf63
children
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/* 
+------------------------------------------------------------------------------
|  File:       pei.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 :  Protocol Entity Interface exported definitions.
+----------------------------------------------------------------------------- 
*/ 


#ifndef __PEI_H__
#define __PEI_H__

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

#include <stddef.h>

/*==== CONSTANTS ===========================================================*/

#define PEI_OK         0
#define PEI_ERROR   (-1)

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

typedef int    T_PEI_RETURN;
typedef char * T_PEI_CONFIG;
typedef void   T_PEI_MONITOR;

/*
 * types and macros for pei-jumptable processing
 */

#define PALLOC_TRANSITION  /* to reinsert the sdu pointer in pei_primitive */
#define NO_COPY_ROUTING    /* has to be set for frame version > 2.5.0 */

  /*
   * for definitions of jumptables
   */
typedef void   (*T_VOID_FUNC)();
typedef short  (*T_SHORT_FUNC)();

typedef struct { T_VOID_FUNC func; size_t size; size_t soff; ULONG opc; } T_FUNC;
#define MAK_FUNC_S(FUNC,OPC) { (T_VOID_FUNC)FUNC, sizeof(T_##OPC), offsetof(T_##OPC,sdu), OPC }
#define MAK_FUNC_0(FUNC,OPC) { (T_VOID_FUNC)FUNC, sizeof(T_##OPC), 0                    , OPC }
#define MAK_FUNC_N(FUNC,OPC) { (T_VOID_FUNC)FUNC, 0              , 0                    , 0   }

#define TAB_SIZE(T) (sizeof T / sizeof *T)

typedef struct
{
  SHORT (*pei_init)(T_HANDLE);
  SHORT (*pei_exit)(void);
  SHORT (*pei_primitive)(void*);
  SHORT (*pei_timeout)(USHORT);
  SHORT (*pei_signal)(ULONG,void*);
  SHORT (*pei_run)(T_HANDLE,T_HANDLE);
  SHORT (*pei_config)(char*);
  SHORT (*pei_monitor)(void**);
} T_PEI_FUNC;


typedef struct                                         
{
  char const *Name;
  T_PEI_FUNC PeiTable;
  ULONG      StackSize;
  USHORT     QueueEntries;
  USHORT     Priority;
  USHORT   	 NumOfTimers;
  U32        Flags;
} T_PEI_INFO;


#endif /* __PEI_H__ */