--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/riviera/rvt/rvt_task.c	Thu Jun 09 00:02:41 2016 +0000
@@ -0,0 +1,554 @@
+/**************************************************************************
+*
+* rvt_task.c
+*
+* This contains the core of the Trace task.
+*
+* (C) Texas Instruments, all rights reserved
+*
+* Version number   : 0.1
+*
+* History		   : 0.1 (7/5/2000) - Created
+*
+* Date             : 7/5/2000
+*
+* Author           : Guido Pagana
+*
+* Update           : Pascal Puel
+*                  : David Lamy-Charrier (changes for Riviera 1.6)
+*
+***************************************************************************/
+
+#include "../../include/config.h" 
+
+#include "../rv/general.h"
+#include "../rv/rv_general.h"
+#include "../rvf/rvf_api.h"
+#include "rvt_gen.h"
+#include "rvt_def_i.h"
+#include "rvt_env.h"
+#include "rvt_env_i.h"
+#include "../rvm/rvm_use_id_list.h"
+
+#include "../../serial/serialswitch.h"
+
+#include "../../nucleus/nucleus.h"
+
+#include <string.h>
+
+extern NU_HISR        TI_rcv_HISR;
+
+/* Time (in milliseconds) between two consecutive 'System Time' messages */
+#define RVT_ALIVE_POLLING_TIME    (RVF_MS_TO_TICKS (20000))
+
+#define RVT_WAIT_FOR_HEADER       (1)
+#define RVT_WAIT_FOR_DATA         (2)
+
+
+/******************************************************************************/
+/*                                                                            */
+/*    Function Name:   rvt_task_core                                          */
+/*                                                                            */
+/*    Purpose:         Core of Trace task.                                    */
+/*                                                                            */
+/*    Input Parameters:                                                       */
+/*        None.                                                               */
+/*                                                                            */
+/*    Output Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Global Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Note:                                                                   */
+/*        None.                                                               */
+/*                                                                            */
+/******************************************************************************/
+T_RVM_RETURN rvt_task_core (void)
+{
+    UINT16  event         = 0;
+    UINT32  nb_bytes_sent = 0;
+
+    #ifdef FRAMING_PROTOCOL
+
+	// Request for the level of filtering, as well as the 32-bit
+	// mask related to the software entities to be monitored.
+	{
+	    UINT8  trace_level_request[] = {RVM_INVALID_USE_ID, 0, 0, 0, 0,
+					(RV_TRACE_LEVEL_ERROR - 1), 0, 0, 0, 0};
+
+		// Note that the level is defined as invalid
+		trace_level_request[0] = (char) rv_trace_user_id;
+
+		// Transmit an 'empty' message
+		nb_bytes_sent = 0;
+		while (nb_bytes_sent < sizeof (trace_level_request))
+		{
+		    nb_bytes_sent += SER_tr_WriteNBytes (SER_LAYER_1,
+					trace_level_request + nb_bytes_sent,
+					sizeof (trace_level_request) -
+						nb_bytes_sent);
+		}
+	}
+
+	// Start the 'Alive Polling Timer'
+	#if (OP_WCP == 0)
+		rvf_start_timer (RVF_TIMER_0,
+				 RVT_ALIVE_POLLING_TIME,
+				 TRUE);
+	#endif
+
+	for (; ; )
+	{
+	    // Infinite wait on 'Trace Task' mailbox or timer events
+	    event = rvf_wait ((1 << RVT_TRACE_MAILBOX) | (RVF_TIMER_0_EVT_MASK),
+				  0);
+
+	    // Check for some messages lost
+	    if (((rvt_lost_msg_cpt.bit_mask).count >= RVT_MAX_LOST_TRACE_MSG)
+		&& (p_rvt_lost_msg))
+	    {
+		INT8    count           = 0;
+		UINT8   lost_msg_length = RVT_HDR_LENGTH + RVT_LOST_MSG_LENGTH;
+		UINT32  lost_msg_cpt    = rvt_lost_msg_cpt.overall_value;
+
+		// Append with the number of messages lost
+		rvt_lost_msg_cpt.overall_value = 0;
+		for (count = 0;
+		     count < RVT_HEX_VALUE_LENGTH;
+		     count++)
+		{
+		    p_rvt_lost_msg[lost_msg_length + count] =
+		      Num2Char[(UINT8) ((lost_msg_cpt << (count << 2)) >> 28)];	
+		}
+		lost_msg_length += RVT_HEX_VALUE_LENGTH;
+
+		// Send message to the UART with byte stuffing
+		nb_bytes_sent = 0;
+		while (nb_bytes_sent < lost_msg_length)
+		{
+			nb_bytes_sent += SER_tr_WriteNBytes (SER_LAYER_1,
+				 (UINT8 *) p_rvt_lost_msg + nb_bytes_sent,
+					 lost_msg_length - nb_bytes_sent);
+		}
+
+	    } // End of if ((rvt_lost_msg_cpt.bit_mask).count >= RVT_MAX_LOST_TRACE_MSG)
+
+	    if (event & EVENT_MASK (RVT_TRACE_MAILBOX))
+	    {
+		T_RV_HDR  *msg = NULL;
+
+		// Read the message from the mailbox
+		if ((msg = (T_RV_HDR *) rvf_read_mbox (RVT_TRACE_MAILBOX))
+		    != NULL)
+		{
+		    if (msg->msg_id == RVT_TRACE_RQST_ID)
+		    {
+			UINT8   msg_format = 0;
+			UINT32  msg_length = 0;
+
+			// Get the length
+			msg_length = ((T_RVT_TRACE_RQST *) msg)->msg_length;
+
+			// Get the format
+			msg_format = ((T_RVT_TRACE_RQST *) msg)->format;
+
+			// Copy the 'User ID'
+			((UINT8 *) msg + RVT_HEADER_SIZE - 1)[0] =
+				((T_RVT_TRACE_RQST *) msg)->user_id;
+			msg_length++;
+
+			switch (msg_format)
+			{
+			    case RVT_ASCII_FORMAT:
+			    {
+				// Send message to the UART without byte stuffing
+				nb_bytes_sent = 0;
+				while (nb_bytes_sent < msg_length)
+				{
+				    nb_bytes_sent += SER_tr_EncapsulateNChars
+						(SER_LAYER_1,
+					(char *) msg + RVT_HEADER_SIZE - 1 +
+						nb_bytes_sent,
+					msg_length - nb_bytes_sent);
+				}
+				break;
+			    }
+			    case RVT_BINARY_FORMAT:
+			    {
+				// Send message to the UART with byte stuffing
+				nb_bytes_sent = 0;
+				while (nb_bytes_sent < msg_length)
+				{
+					nb_bytes_sent += SER_tr_WriteNBytes
+							(SER_LAYER_1,
+						(UINT8 *) msg + RVT_HEADER_SIZE
+							- 1 + nb_bytes_sent,
+						msg_length - nb_bytes_sent);
+				}
+				break;
+			    }
+			    default:
+			    {
+				// Increment the number of messages lost.
+				// Is the buffer corrupted?
+				(rvt_lost_msg_cpt.bit_mask).count++;
+				(rvt_lost_msg_cpt.bit_mask).unknown_format = 1;
+				break;
+			    }
+			}
+
+			// Deallocate the buffer
+			rvf_free_buf (msg);
+
+		    } // End of if (msg->msg_id == RVT_TRACE_RQST_ID)
+		    else
+		    {
+			// Increment the number of messages lost. Is the buffer
+			// corrupted?
+			(rvt_lost_msg_cpt.bit_mask).count++;
+			(rvt_lost_msg_cpt.bit_mask).unknown_request = 1;
+		    }
+
+		} // End of if (msg != NULL)
+		else
+		{
+			// Increment the number of messages lost. Is the buffer
+			// corrupted?
+			(rvt_lost_msg_cpt.bit_mask).count++;
+			(rvt_lost_msg_cpt.bit_mask).message_empty = 1;
+		}
+
+	    }  // End of if (event & EVENT_MASK (RVT_TRACE_MAILBOX))
+
+	    if ((event & (RVF_TIMER_0_EVT_MASK)) && (p_rvt_sys_time))
+	    {
+		UINT8   count           = 0;
+		UINT8   sys_time_length = RVT_HDR_LENGTH + RVT_SYS_TIME_LENGTH;
+		UINT32  current_time    = rvf_get_tick_count ();
+
+		// Append with the system time
+		for (count = 0;
+		     count < RVT_HEX_VALUE_LENGTH;
+		     count++)
+		{
+		    p_rvt_sys_time[sys_time_length + count] =
+		      Num2Char[(UINT8) ((current_time << (count << 2)) >> 28)];	
+		}
+		sys_time_length += RVT_HEX_VALUE_LENGTH;
+
+		// Send message to the UART with byte stuffing
+		nb_bytes_sent = 0;
+		while (nb_bytes_sent < sys_time_length)
+		{
+			nb_bytes_sent += SER_tr_WriteNBytes (SER_LAYER_1,
+				 (UINT8 *) p_rvt_sys_time + nb_bytes_sent,
+					 sys_time_length - nb_bytes_sent);
+		}
+
+	    } // End of if (event & (RVF_TIMER_0_EVT_MASK))
+		//freecalypso_lldbg_intinfo();
+	}
+
+    #else
+
+		// Start the 'Alive Polling Timer'
+		#if (OP_WCP == 0)
+		  rvf_start_timer (RVF_TIMER_0,
+						   RVT_ALIVE_POLLING_TIME,
+						   TRUE);
+		#endif
+		
+		for (;
+			 ;
+			 )
+		{
+			// Infinite wait on 'Trace Task' mailbox or timer events
+			event = rvf_wait ((1 << RVT_TRACE_MAILBOX) | (RVF_TIMER_0_EVT_MASK),
+							  0);
+
+			// Check for some messages lost
+			if (((rvt_lost_msg_cpt.bit_mask).count >= RVT_MAX_LOST_TRACE_MSG) && (p_rvt_lost_msg))			
+			{
+				INT8    count           = 0;
+				UINT8   lost_msg_length = RVT_LOST_MSG_LENGTH;
+				UINT32  lost_msg_cpt    = rvt_lost_msg_cpt.overall_value;
+
+				// Append with the number of messages lost
+				rvt_lost_msg_cpt.overall_value = 0;
+				for (count = 0;
+					 count < RVT_HEX_VALUE_LENGTH;
+					 count ++)
+				{
+					p_rvt_lost_msg[lost_msg_length + count] = Num2Char[(UINT8) ((lost_msg_cpt << (count << 2)) >> 28)];
+				}
+				rvt_lost_msg_length += RVT_HEX_VALUE_LENGTH;
+
+				// Append with the '\n' and '\r' characters for the hyper terminal
+				p_rvt_lost_msg[lost_msg_length++] = '\n';
+				p_rvt_lost_msg[lost_msg_length++] = '\r';
+
+				// Send the message to the UART without byte stuffing
+				nb_bytes_sent = 0;
+				while (nb_bytes_sent < lost_msg_length)
+				{
+					nb_bytes_sent += SER_tr_WriteNChars (SER_LAYER_1,
+														 (UINT8 *) p_rvt_lost_msg + nb_bytes_sent,
+														 lost_msg_length - nb_bytes_sent);
+				}
+
+			} // End of if ((rvt_lost_msg_cpt.bit_mask).count >= RVT_MAX_LOST_TRACE_MSG)
+
+			if (event & EVENT_MASK (RVT_TRACE_MAILBOX))
+			{
+				T_RV_HDR  *msg = NULL;
+
+				// Read the message from the mailbox
+				if ((msg = (T_RV_HDR *) rvf_read_mbox (RVT_TRACE_MAILBOX)) != NULL)
+				{
+					if (msg->msg_id == RVT_TRACE_RQST_ID)
+					{
+						UINT32  msg_length = 0;
+
+						// Get the length
+						msg_length = ((T_RVT_TRACE_RQST *) msg)->msg_length;
+
+						// Send message to the UART without byte stuffing
+						nb_bytes_sent = 0;
+						while (nb_bytes_sent < msg_length)
+						{
+							nb_bytes_sent += SER_tr_WriteNChars (SER_LAYER_1,
+																 msg + RVT_HEADER_SIZE + nb_bytes_sent,
+																 msg_length - nb_bytes_sent);
+						}
+
+						// Append with the '\n' and '\r' characters for the hyper terminal
+						msg_length        = 0;
+						msg[msg_length++] = '\n';
+						msg[msg_length++] = '\r';
+
+						// Send message to the UART without byte stuffing
+						nb_bytes_sent = 0;
+						while (nb_bytes_sent < msg_length)
+						{
+							nb_bytes_sent += SER_tr_WriteNChars (SER_LAYER_1,
+																 msg + nb_bytes_sent,
+																 msg_length - nb_bytes_sent);
+						}
+
+						// Deallocate the buffer
+						rvf_free_buf (msg);
+
+					} // End of if (msg->msg_id == RVT_TRACE_RQST_ID)
+
+					else
+					{
+						// Increment the number of messages lost. Is the buffer
+						// corrupted?
+						(rvt_lost_msg_cpt.bit_mask).count++;
+						(rvt_lost_msg_cpt.bit_mask).unknown_request = 1;
+					}
+
+				} // End of if (msg != NULL)
+
+				else
+				{
+					// Increment the number of messages lost. Is the buffer
+					// corrupted?
+					(rvt_lost_msg_cpt.bit_mask).count++;
+					(rvt_lost_msg_cpt.bit_mask).message_empty = 1;
+				}
+
+			}  // End of if (event & EVENT_MASK (RVT_TRACE_MAILBOX))
+
+			if ((event & (RVF_TIMER_0_EVT_MASK)) && (p_rvt_sys_time))
+			{
+				UINT8   count           = 0;
+				UINT8   sys_time_length = RVT_SYS_TIME_LENGTH;
+				UINT32  current_time    = rvf_get_tick_count ();
+
+				// Append with the system time
+				for (count = 0;
+					 count < RVT_HEX_VALUE_LENGTH;
+					 count++)
+				{
+					p_rvt_sys_time[sys_time_length + count] = Num2Char[(UINT8) ((current_time << (count << 2)) >> 28)];	
+				}
+				sys_time_length += RVT_HEX_VALUE_LENGTH;
+
+				// Append with the '\n' and '\r' characters for the hyper terminal
+				p_rvt_sys_time[sys_time_length++] = '\n';
+				p_rvt_sys_time[sys_time_length++] = '\r';
+
+				// Send message to the UART without byte stuffing
+				nb_bytes_sent = 0;
+				while (nb_bytes_sent < sys_time_length)
+				{
+					nb_bytes_sent += SER_tr_WriteNChars (SER_LAYER_1,
+														 (UINT8 *) p_rvt_sys_time + nb_bytes_sent,
+														 sys_time_length - nb_bytes_sent);
+				}
+
+			} // End of if (event & (RVF_TIMER_0_EVT_MASK))
+		}
+    #endif
+}	
+
+
+/******************************************************************************/
+/*                                                                            */
+/*    Function Name:   rvt_RX_process                                         */
+/*                                                                            */
+/*    Purpose:         This function is called when characters are received   */
+/*                     on the serial port on receive HISR.                    */
+/*                                                                            */
+/*    Input Parameters:                                                       */
+/*        None.                                                               */
+/*                                                                            */
+/*    Output Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Global Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Note:                                                                   */
+/*        None.                                                               */
+/*                                                                            */
+/******************************************************************************/
+void rvt_RX_process (void)
+{
+	UINT32        bytesRead;
+	static UINT8  inBuffer[255];
+
+/*
+	rvf_send_trace("Ser RX", 6, rvf_get_tick_count(),
+			RV_TRACE_LEVEL_DEBUG_HIGH, RVT_USE_ID);
+	freecalypso_raw_dbgout("*Ser_RX");
+	freecalypso_lldbg_intinfo();
+*/
+
+    #ifdef FRAMING_PROTOCOL
+	BOOL                      eof              = 0;
+	static UINT8              rcv_state        = RVT_WAIT_FOR_HEADER;
+	static UINT32             total_bytesRead  = 0;
+	static RVT_CALLBACK_FUNC  rx_callback_func = NULL;
+
+	// Get all bytes from the UART RX FIFO
+	for (; ; )
+	{
+	    // Read and destuff the UART RX FIFO and fill inBuffer with received
+	    // bytes
+	    bytesRead = SER_tr_ReadNBytes (SER_LAYER_1,
+					  (char *) (inBuffer + total_bytesRead),
+					   sizeof (inBuffer) - total_bytesRead,
+					   &eof);
+
+	    // Check for the header. Hence, get the sendee
+	    if ((rcv_state == RVT_WAIT_FOR_HEADER) && \
+		(bytesRead) && \
+		!(total_bytesRead))
+	    {
+		if ((inBuffer[0] >= RVT_RV_HEADER) &&
+		    (inBuffer[0] <= RVT_KEEPALIVE_HEADER))
+		{
+		    UINT8  idtab = 0;
+
+		    // Search for the ID in the table
+		    for (idtab = 0;
+		    	 rvt_user_db[idtab].user_id != RVT_INVALID_HEADER;
+		    	 idtab++)
+		    {
+			if (rvt_user_db[idtab].user_id == inBuffer[0])
+			{
+			    rx_callback_func =
+					rvt_user_db[idtab].rx_callback_func;
+			    break;
+			}
+		    }
+		    rcv_state = RVT_WAIT_FOR_DATA;
+		}
+	    }
+
+	    // Update the total number of bytes read,
+	    // regarding the current frame 
+	    total_bytesRead += bytesRead;
+
+	    // Call the corresponding callback function when a complete message
+	    // is received (eof odd)
+	    if (eof & 0x01)
+	    {
+		// Invoke the callback function
+		if (rx_callback_func != NULL)
+		{
+		    rx_callback_func ((T_RVT_BUFFER) (inBuffer + 1),
+					total_bytesRead - 1);
+		    rx_callback_func = NULL;
+		}
+
+		// Wait for the next frame to come
+		rcv_state       = RVT_WAIT_FOR_HEADER;
+		total_bytesRead = 0;
+	    }
+
+	    // inBuffer may be full due to some synchro lost problems
+	    else if (total_bytesRead == sizeof (inBuffer))
+	    {
+		// If still waiting for the header, discard received characters
+		// and reset static variables for the next frame to come
+		if (rcv_state == RVT_WAIT_FOR_HEADER)
+		{
+		    total_bytesRead = 0;
+		    break;
+		}
+
+		// Just discard characters received as payload
+		total_bytesRead = sizeof (inBuffer[0]);
+	    }
+
+	    // Proceed with the next concatenated frame whether more bytes left
+	    if (eof > 1)
+	    {
+		continue;
+	    }
+	    break;
+	}
+    #else
+
+	// Read the UART RX FIFO and fill inBuffer with received bytes
+	bytesRead = SER_tr_ReadNChars (SER_LAYER_1,
+					(char *) inBuffer,
+					sizeof (inBuffer));
+
+	// Invoke the Testmode callback function : this is the only one able,
+	// for the moment, to send an external command !!  WARNING : This
+	// should be the same name than the one already registered in
+	// create_RVtasks.c.
+	tm_receive ((T_RVT_BUFFER) inBuffer, bytesRead);
+    #endif
+}
+
+
+
+/******************************************************************************/
+/*                                                                            */
+/*    Function Name:   rvt_activate_RX_HISR                                   */
+/*                                                                            */
+/*    Purpose:         This function is called when an RX interrupt occurs.   */
+/*                                                                            */
+/*    Input Parameters:                                                       */
+/*        None.                                                               */
+/*                                                                            */
+/*    Output Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Global Parameters:                                                      */
+/*        None.                                                               */
+/*                                                                            */
+/*    Note:                                                                   */
+/*        None.                                                               */
+/*                                                                            */
+/******************************************************************************/
+void rvt_activate_RX_HISR (void)                                    
+{                                                         
+	NU_Activate_HISR (&TI_rcv_HISR);
+}