/******************************************************************************
*
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* of this software and associated documentation files (the "Software"), to deal
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*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
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*
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******************************************************************************/
/******************************************************************************/
/**
* @file mbox_example.c
*
* This file contains a design example for using the Mailbox hardware and driver
* XMbox
*
* The example assumes there are two processors availabile in the system that
* are expected to inter-communicate.
*
* This example has been tested on ML505 Hardware Evaluation board.
*
* @note
*
* These code fragments will illustrate how the XMbox component can be used to:
* - Initialize the Mailbox core
* - Pass data between two processes
*
*
*<pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00a va First release
* 1.00a ecm 06/09/07 Cleanup, new coding standard, check into XCS
* 3.01a sdm 05/06/10 Cleanup for coding guidelines
*</pre>
*******************************************************************************/
/***************************** Include Files **********************************/
#include "xmbox.h"
#include "xstatus.h"
#include "xparameters.h"
/************************** Constant Definitions *****************************/
#define MSGSIZ 1024 /* Size of the actual Message */
#define HELLO_SIZE 40 /* Size of the Hello Message */
#if XPAR_CPU_ID == 2
#define MY_CPU_ID 1
#else
#define MY_CPU_ID XPAR_CPU_ID
#endif
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
#define printf xil_printf /* A smaller footprint printf */
/************************** Variable Definitions *****************************/
char *Role[2] = { "PRODUCER",
"CONSUMER" };
extern char data[];
char *SendMsg = data;
char RecvMsg[MSGSIZ] __attribute__ ((aligned(4)));
u32 temp1pad = 0;
char *hello = "Hello! The Producer greets the Consumer...";
u32 temp2pad = 0;
char *rhello = "Hello! The Consumer greets the Producer...";
/************************** Function Prototypes ******************************/
int ProdCon (void);
/*****************************************************************************/
/**
* This function is the main function for the mailbox example.
*
* @param None.
*
* @return XST_SUCCESS if successful, XST_FAILURE if unsuccessful.
*
* @note None.
*
******************************************************************************/
int main(void)
{
int Status;
printf ("-- Entering main() --\r\n");
printf ("PRODCON :\tStarts.\r\n");
Status = ProdCon();
if (Status != XST_SUCCESS) {
printf ("PRODCON :\tFailed.\r\n");
} else {
printf ("PRODCON :\tSucceeded.\r\n");
}
printf ("PRODCON :\tEnds.\r\n");
printf ("-- Exiting main() --\r\n");
return Status;
}
/******************************************************************************/
/**
*
* This function performs the producer and consumer console functionality.
* At compile time the role, producer or consumer, is determined.
*
* @param None.
*
* @return XST_SUCCESS.
*
* @note None.
*
*******************************************************************************/
int ProdCon ()
{
XMbox Mbox;
XMbox_Config *ConfigPtr;
int Status;
u32 NumBytes;
u32 Sent;
u32 Rcvd;
int Index;
printf ("(%s):\tStarts.\r\n", Role[MY_CPU_ID]);
/*
* Lookup configuration data in the device configuration table.
* Use this configuration info down below when initializing this
* component.
*/
ConfigPtr = XMbox_LookupConfig(XPAR_MBOX_4_DEVICE_ID );
if (ConfigPtr == (XMbox_Config *)NULL) {
printf ("(%s):\tLookupConfig Failed.%8.8x\r\n",
Role[MY_CPU_ID], XPAR_MBOX_4_DEVICE_ID );
return XST_FAILURE;
}
/*
* Perform the rest of the initialization
*/
Status = XMbox_CfgInitialize(&Mbox, ConfigPtr, ConfigPtr->BaseAddress);
if (Status != XST_SUCCESS) {
return XST_FAILURE;
}
#if MY_CPU_ID == 0
/* First send the hello */
printf ("CPU 0 WriteBlocking call\n");
/* Write a message to the Mbox */
XMbox_WriteBlocking(&Mbox, (u32*)((u8*)hello), HELLO_SIZE);
printf ("(%s):\tsent %d bytes.\r\n", Role[MY_CPU_ID], HELLO_SIZE);
printf ("(%s):\tSuccessfully sent the message --> \r\n\r\n\t--[%s]--\r\n\r\n", Role[MY_CPU_ID], hello);
#else
/* First recv the hello */
printf ("CPU 1 ReadBlocking call\n");
/* Read a message from the Mbox */
XMbox_ReadBlocking(&Mbox, (u32*)(RecvMsg), HELLO_SIZE);
printf ("(%s):\tSuccessfully Rcvd the message --> \r\n\r\n\t--[%s]--\r\n\r\n", Role[MY_CPU_ID], RecvMsg);
#endif
#if MY_CPU_ID == 0
/* Now get back a hello */
/* Read a message from the Mbox */
printf ("CPU 0 ReadBlocking call\n");
XMbox_ReadBlocking (&Mbox, (u32*)(RecvMsg), HELLO_SIZE);
printf ("(%s):\tSuccessfully Rcvd the message --> \r\n\r\n\t--[%s]--\r\n\r\n", Role[MY_CPU_ID], RecvMsg);
#else
/* First recv the hello */
NumBytes = 0;
/* Write a message to the Mbox */
printf ("CPU 1 WriteBlocking call\n");
XMbox_WriteBlocking (&Mbox, (u32*)((u8*)rhello), HELLO_SIZE);
printf ("(%s):\tsent %d bytes.\r\n", Role[MY_CPU_ID], Sent);
printf ("(%s):\tSuccessfully sent the message --> \r\n\r\n\t--[%s]--\r\n\r\n",
Role[MY_CPU_ID], rhello);
#endif
#if MY_CPU_ID == 0
/* Now send the full message */
printf ("(%s):\tNow sending the actual message -->\r\n",
Role[MY_CPU_ID]);
/* Write a message to the Mbox */
XMbox_WriteBlocking (&Mbox, (u32*)(SendMsg), MSGSIZ);
printf ("(%s):\tSuccessfully sent the full message.\r\n",
Role[MY_CPU_ID]);
#else
/* Now recv the full message */
printf ("(%s):\tNow receiving the actual message -->\r\n",
Role[MY_CPU_ID]);
/* Read a message from the Mbox */
XMbox_ReadBlocking (&Mbox, (u32*)(RecvMsg), MSGSIZ);
printf ("(%s):\tSuccessfully Rcvd the full message.\r\n",
Role[MY_CPU_ID]);
if (memcmp (RecvMsg, data, MSGSIZ)) {
printf ("(%s):\tError! Rcvd message does not match expected.\r\n",
Role[MY_CPU_ID]);
return XST_FAILURE;
} else {
printf ("(%s):\tSuccess! Rcvd message does match expected.\r\n",
Role[MY_CPU_ID]);
}
#endif
printf ("(%s):\tEnds.\r\n", Role[MY_CPU_ID]);
return XST_SUCCESS;
}