view src/gpf/inc/tdc_msg.h @ 220:0ed36de51973

ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   : TDC
+----------------------------------------------------------------------------- 
|  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 :  
+----------------------------------------------------------------------------- 
*/ 

#ifdef TDC_H
#error "TDC.H already included, TDC.H must come after all primitives and messages"
#endif

#ifndef TDC_MSG_H
#define TDC_MSG_H

#if DOT_COMPLETE_DEFINES

//----------------------------------------------------------------------------
// macros to repeat stuff that is similar in many interface classes 
//----------------------------------------------------------------------------

#define M_TDC_INTERFACE_PRIM_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_PSTRUCT_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_PUNION_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_SDU_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_PENUM_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_PINT_ADDITIONAL(INT_NAME, SHORT_NAME)

//-----

#define M_TDC_INTERFACE_MSG_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_MSTRUCT_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_MUNION_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_MENUM_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_MINT_ADDITIONAL(INT_NAME, SHORT_NAME)

//-----

#define M_TDC_INTERFACE_INT_ADDITIONAL(SHORT_NAME)

#define M_TDC_INTERFACE_XXX_PRIMITIVE_UNION_ADDITIONAL(SAP)

#define M_TDC_INTERFACE_XXX_MESSAGE_UNION_ADDITIONAL(MSG)

#define M_TDC_CREATE_DEFAULT_PRIMITIVE_INTERFACE_CLASS(SAP)

#define M_TDC_INTERFACE_PRIMITIVE_ADDITIONAL()

#define M_TDC_INTERFACE_PRIMITIVE_ELEMENT_ADDITIONAL(SAP)

#define M_TDC_CREATE_DEFAULT_MESSAGE_INTERFACE_CLASS(MSG)

#define M_TDC_INTERFACE_MESSAGE_ADDITIONAL()

#define M_TDC_INTERFACE_MESSAGE_ELEMENT_ADDITIONAL(MSG)

#else
#endif

#include "tdc_base.h"

#ifndef TDC_DESCRIPTOR
#include "message.h"
#include "primitive.h"
#else
#include "message_dsc.h"
#include "primitive_dsc.h"
#endif

struct T_TDC_INTERFACE_U8;

//TODO: eliminate need for these types used by M_RR (this is a bug work around)
typedef T_TDC_HANDLE_U8 T_TDC_HANDLE_AVG_W;
typedef T_TDC_HANDLE_U8 T_TDC_HANDLE_AVG_T;
typedef T_TDC_INTERFACE_U8 T_TDC_INTERFACE_AVG_W;
typedef T_TDC_INTERFACE_U8 T_TDC_INTERFACE_AVG_T;
//TODO: eliminate need for these types used by M_GRR (this is a bug work around)
typedef T_TDC_HANDLE_U8 T_TDC_HANDLE_RESEL;
typedef T_TDC_INTERFACE_U8 T_TDC_INTERFACE_RESEL;

typedef struct T_TDC_HANDLE_TEST_var4 T_TDC_HANDLE_TEST_var4T;
typedef struct T_TDC_HANDLE_TEST_enum4 T_TDC_HANDLE_TEST_enum4T;

M_TDC_FORWARD_SDU (sdu)
struct T_TDC_DESCRIPTOR_sdu;
struct T_TDC_HANDLE_sdu;
struct T_TDC_INTERFACE_sdu;
struct T_sdu;
typedef T_TDC_HANDLE_sdu T_TDC_HANDLE_SDU;
typedef T_TDC_DESCRIPTOR_sdu T_TDC_DESCRIPTOR_SDU;
typedef T_TDC_INTERFACE_sdu T_TDC_INTERFACE_SDU;
typedef T_sdu T_TDC_INSTANCE_SDU;



///\todo make some sencible stuff here
struct T_TDC_HANDLE_desc_list
{
  int dummy_to_keep_doxygen_happy;
};

///\todo make some sencible stuff here
struct T_TDC_HANDLE_desc
{
  int dummy_to_keep_doxygen_happy;
};

///\todo make some sencible stuff here
struct T_TDC_INTERFACE_desc_list
{
  int dummy_to_keep_doxygen_happy;
};

///\todo make some sencible stuff here
struct T_TDC_INTERFACE_desc
{
  int dummy_to_keep_doxygen_happy;
};



#ifdef TDC_DESCRIPTOR

/*M_TDC_FORWARD_PSTRUCT(raw)
M_TDC_FORWARD_PSTRUCT(aim)
M_TDC_FORWARD_PSTRUCT(sdu)*/

struct T_TDC_DESCRIPTOR_aim:T_TDC_DESCRIPTOR_PSTRUCT_BASE
{
	M_TDC_DESCRIPTOR_PSTRUCT_ADDITIONAL (aim)
	T_TDC_HANDLE_U8 ti; 
	T_TDC_HANDLE_U8 tie;
  T_TDC_HANDLE_U8 nsd;
	T_TDC_HANDLE_MESSAGE_UNION entity;
};

struct T_TDC_DESCRIPTOR_sdu:T_TDC_DESCRIPTOR_SDU_BASE
{
	M_TDC_DESCRIPTOR_SDU_ADDITIONAL (sdu)
	T_TDC_HANDLE_raw raw; //manual sdu
	T_TDC_HANDLE_aim aim; //coded sdu
};

#endif

#if !defined TDC_DESCRIPTOR || defined TDC_PRECOMPILE 

struct T_aim:T_TDC_INSTANCE_PSTRUCT_BASE
{
  M_TDC_INSTANCE_PSTRUCT_ADDITIONAL (aim,aim)
  T_TDC_INTERFACE_aim* operator-> ();
};
struct T_TDC_INTERFACE_aim:T_TDC_INTERFACE_PSTRUCT_BASE
{
  M_TDC_INTERFACE_PSTRUCT_ADDITIONAL (aim,aim)
  T_TDC_INTERFACE_U8 ti;
  T_TDC_INTERFACE_U8 tie;
  T_TDC_INTERFACE_U8 nsd;
  T_TDC_INTERFACE_MESSAGE_UNION entity;
#ifdef TDC_TYPE_NAME_COMPLETE
  struct { char T_aim, ___ti___tie___nsd___entiy; } _type_name ();
#endif
};

struct T_sdu:T_TDC_INSTANCE_SDU_BASE
{
  M_TDC_INSTANCE_SDU_ADDITIONAL (sdu)
  T_sdu(const T_MESSAGE_UNION& msg);
  T_sdu(const T_TDC_INSTANCE_MSG_BASE& msg);
  T_TDC_INTERFACE_sdu* operator-> ();
};
struct T_TDC_INTERFACE_sdu:T_TDC_INTERFACE_SDU_BASE
{
  M_TDC_INTERFACE_PSTRUCT_ADDITIONAL (sdu,sdu)
  T_TDC_INTERFACE_raw raw; //manual sdu
  T_TDC_INTERFACE_aim aim; //coded sdu
#ifdef TDC_TYPE_NAME_COMPLETE
  struct { char T_sdu, ___raw___aim; } _type_name ();
#endif
};
inline T_sdu::T_sdu(const T_MESSAGE_UNION& msg)
{
  construct();
  (*this)->aim.entity=msg;
}
inline T_sdu::T_sdu(const T_TDC_INSTANCE_MSG_BASE& msg)
{
  construct();
  (*this)->aim.entity=msg;
}


#endif //!defined TDC_DESCRIPTOR || defined TDC_PRECOMPILE 

//============================================================================
template <class T>
T_sdu tds_array_to_sdu(const T& U8array)
//This function is a temporary solution to help the convertion from TDS U8 arrays to TDC SDU's.
{
	T_sdu sdu; 
	sdu->raw.l_buf = U8array[0] + U8array[1] * 256;
	sdu->raw.o_buf = U8array[2] + U8array[3] * 256;
	if (sizeof(U8array)>4)
	{
		for (int i = 4; i < sizeof(U8array);i++)
		{
			sdu->raw.buf[i-4] = U8array[i];
		}
	}
	else
	{
		sdu->raw.buf = T_ARRAY<U8>();
	}
	return sdu;
}
//============================================================================
template <class T>
T_sdu BIN(const T& U8array)
{
	T_sdu sdu;
	int i=0,bit=0,l_buf=0;
	U8 temp=0;

	while(U8array[i] != '\0')
	{
		if(U8array[i] == 0x20)				//(0x20 is space) 
		{
			if(bit != 0)
				tdc_user_error("BIN(): There is not 8 bits between spaces!");	
		}	
		else
		{
			switch(U8array[i])
			{
				case 0x31:  //(0x31 ascii code for 1)
					temp += 1<<(7-bit);
					break;	

				case 0x30:	//(0x30 ascii code for 0)
					break;	

				default:
					tdc_user_error("BIN(): string character neither '0' or '1': %c",U8array[i]);
					break;
			}
			bit ++;
			if(bit == 8)
			{
				sdu->raw.buf[l_buf/8] = temp;
				temp = 0;
				bit=0;
			}
			l_buf++;
		}
		i++;
	}
	if(bit != 0)		//if the number of bits is not a multiplum of 8 the last few bits will be assigned here
	{
		sdu->raw.buf[l_buf/8] = temp;
	}

	sdu->raw.l_buf=l_buf;
	sdu->raw.o_buf=0;
	return sdu;
}

template <class T>
T_sdu HEX(const T& U8array)
{
  T_sdu sdu;
  int i = 0, nibble = 0, l_buf = 0;
  U8 temp = 0;
  
  while(U8array[i] != '\0')
    {
      if(U8array[i] == 0x20)				//(0x20 is space) 
	{
	  if(nibble != 0)
	    tdc_user_error("HEX(): There is not 2 nibbles between spaces!");	
	}	
      else
	{
	  if(('0' <= U8array[i]) &&  (U8array[i] <= '9'))
	    {
	      temp += (U8array[i] - 0x30) << (4*(1-nibble));
	    }
	  else if(('A' <= U8array[i]) &&  (U8array[i] <= 'F'))
	    {
	      temp += (U8array[i] - 0x37) << (4*(1-nibble));
	    }
	  else if(('a' <= U8array[i]) && (U8array[i] <= 'f'))
	    {
	      temp += (U8array[i] - 0x57) << (4*(1-nibble));
	    }
	  else
	    {
	      tdc_user_error("HEX(): String character not a HEX number: %c",U8array[i]);
	    }
	  nibble ++;
	  if(nibble == 2)
	    {
	      sdu->raw.buf[l_buf/8] = temp;
	      temp = 0;
	      nibble = 0;
	    }
	  l_buf += 4;
	}
      i++;
    }	
  
  if(nibble != 0) //checks whether the number of nibbles are odd. IF THIS SHOULD BE MADE LEGAL 
    {				//remove the '//' in front of the line above and comment out the error function call!			
      tdc_user_error("HEX(): Odd number of nibbles (hex numbers)");
      //sdu->raw.buf[l_buf/8]=temp;
    }
  sdu->raw.l_buf = l_buf;
  sdu->raw.o_buf = 0;
  return sdu;
}

template <class T>
T_sdu CHR(const T& U8array)
{
	T_sdu sdu;
	int i=0;
	while(U8array[i] != '\0')	
	{
		sdu->raw.buf[i]= (U8)U8array[i];
		i++;
	}
	sdu->raw.l_buf=8*i;
	sdu->raw.o_buf=0;
	return sdu;
}

#endif //TDC_MSG_H