//*****************************************************************************
//
// Writes a message to the log. The message is preceeded by a time stamp, and
// the message can not exceed 28 characters in length (unless g_pcBuffer is
// increased in size).
//
//*****************************************************************************
void
LogWrite(char *pcPtr)
{
tTime sTime;
//
// Convert the current time from seconds since Jan 1, 1970 to the month,
// day, year, hour, minute, and second equivalent.
//
ulocaltime(g_ulTime, &sTime);
//
// Construct the log message with the time stamp preceeding it.
//
UARTprintf("%s %s %2d %02d:%02d:%02d.%02d UT %d => %s\r\n",
g_ppcDays[sTime.ucWday], g_ppcMonths[sTime.ucMon], sTime.ucMday,
sTime.ucHour, sTime.ucMin, sTime.ucSec, g_ulTimeCount / 10,
sTime.usYear, pcPtr);
}
//*****************************************************************************
//
// Callback function from the menu widget. This function is called whenever
// the menu is used to activate a child widget that is associated with the
// menu. It is also called when the widget is deactivated and control is
// returned to the menu widget. It can be used to trigger different actions
// depending on which menus are chosen, and to track the state of the
// application and control focus for the user interface.
//
// This function is called in the context of widget tree message processing
// so care should be taken if doing any operation that affects the display
// or widget tree.
//
//*****************************************************************************
static void
WidgetActivated(tWidget *psWidget, tSlideMenuItem *psMenuItem, bool bActivated)
{
char *pcMenuText;
uint32_t ui32RTC;
//
// Handle the activation or deactivation of the strip chart. The strip
// chart widget is activated when the user selects the START menu.
//
if(psWidget == &g_sStripChart.sBase)
{
//
// If the strip chart is activated, start the logger running.
//
if(bActivated)
{
//
// Get the current state of the menus
//
MenuGetState(&g_sConfigState);
//
// Save the state in battery backed memory
//
SetSavedState(&g_sConfigState);
//
// Start logger and update the logger state
//
AcquireStart(&g_sConfigState);
g_iLoggerState = eSTATE_LOGGING;
}
else
{
//
// If the strip chart is deactivated, stop the logger.
//
AcquireStop();
g_iLoggerState = eSTATE_IDLE;
}
}
else if((psWidget == &g_sAINContainerCanvas.sBase) ||
(psWidget == &g_sAccelContainerCanvas.sBase) ||
(psWidget == &g_sCurrentContainerCanvas.sBase) ||
(psWidget == &g_sClockContainerCanvas.sBase) ||
(psWidget == &g_sTempContainerCanvas.sBase))
{
//
// Handle the activation or deactivation of any of the container
// canvas that is used for showing the acquired data as a numerical
// display. This happens when the VIEW menu is used.
//
// A viewer has been activated.
//
if(bActivated)
{
static tConfigState sLocalState;
//
// Get the current menu configuration state and save it in a local
// storage.
//
MenuGetState(&sLocalState);
//
// Modify the state to set values that are suitable for using
// with the viewer. The acquisition rate is set to 1/2 second
// and all channels are selected. The storage medium is set to
// "viewer" so the acquistion module will write the value of
// acquired data to the appropriate viewing canvas.
//
sLocalState.ui8Storage = CONFIG_STORAGE_VIEWER;
sLocalState.ui32Period = 0x00000040;
sLocalState.ui16SelectedMask = 0x3ff;
//
// Start the acquisition module running.
//
AcquireStart(&sLocalState);
g_iLoggerState = eSTATE_VIEWING;
}
else
{
//
// The viewer has been deactivated so turn off the acquisition
// module.
//
AcquireStop();
g_iLoggerState = eSTATE_IDLE;
}
}
else if(psWidget == &g_sStatusContainerCanvas.sBase)
{
//
// Handle the case when a status display has been activated. This can
// occur when any of several menu items are selected.
//
// Get pointer to the text of the current menu item.
//
if(psMenuItem)
{
pcMenuText = psMenuItem->pcText;
}
else
{
return;
}
//
// If activated from the SAVE menu, then the flash data needs to be
// saved to USB stick. Enter the saving state.
//
if(!strcmp(pcMenuText, "SAVE"))
{
if(bActivated)
{
g_iLoggerState = eSTATE_SAVING;
}
else
{
g_iLoggerState = eSTATE_IDLE;
}
}
else if(!strcmp(pcMenuText, "ERASE DATA?"))
{
//
// If activated from the ERASE menu, then the flash data needs to
// be erased. Enter the erasing state.
//
if(bActivated)
{
g_iLoggerState = eSTATE_ERASING;
}
else
{
g_iLoggerState = eSTATE_IDLE;
}
}
else if(!strcmp(pcMenuText, "FLASH SPACE"))
{
//
// If activated from the FLASH SPACE menu, then the user will be
// shown a report on the amount of free space in flash. Enter the
// reporting state.
//
if(bActivated)
{
g_iLoggerState = eSTATE_FREEFLASH;
}
else
{
g_iLoggerState = eSTATE_IDLE;
}
}
}
else if(psWidget == &g_sClockSetter.sBase)
{
//
// Handle the activation of the clock setting widget. Deactivation is
// handled through a separate callback.
//
// If the clock setter is activated, load the time structure fields.
//
if(bActivated)
{
//
// Get the current time in seconds from the RTC.
//
ui32RTC = HibernateRTCGet();
//
// Convert the RTC time to a time structure.
//
ulocaltime(ui32RTC, &g_sTimeClock);
//
// Set the callback that will be called when the clock setting
// widget is deactivated. Since the clock setting widget needs
// to take over the focus for button events, it uses a separate
// callback when it is finsihed.
//
ClockSetCallbackSet((tClockSetWidget *)psWidget,
ClockSetOkCallback);
//
// Give the clock setter widget focus for the button events
//
g_ui32KeyFocusWidgetHandle = (uint32_t)psWidget;
g_iLoggerState = eSTATE_CLOCKSET;
}
}
}
//*****************************************************************************
//
// Read the next chunck of data from the file. Return the count of data
// that was read. Return 0 if no data is currently available. Return
// a -1 if at the end of file.
//
//*****************************************************************************
int
fs_read(struct fs_file *file, char *buffer, int count)
{
int iAvailable;
//
// Check to see if an audio update was requested (pextension = 1).
//
if(file->pextension)
{
const struct fsdata_file *ptTree;
//
// Check to see if this is a file we know something about.
//
ptTree = file->pextension;
if(strncmp((char *)ptTree->name, "/ptpclock", 9) == 0)
{
char *ptr, cTemp;
extern volatile unsigned long g_ulSystemTimeSeconds;
tTime sLocalTime;
//
// Check to see if the buffer size is large enough for the entire
// file. If not, return EOF.
//
if(ptTree->len > count)
{
return(-1);
}
//
// Copy the file into the buffer.
//
memcpy(buffer, ptTree->data, ptTree->len);
//
// Find the "div" marker for the PTP time.
//
ptr = ustrstr((const char *)buffer, "Www Mmm Dd, Yyyy Hh:Mm:Ss");
if(ptr == NULL)
{
return(-1);
}
//
// Save the character after the date string.
//
cTemp = *(ptr + 26);
//
// Get the local time from the current second counter.
//
ulocaltime(g_ulSystemTimeSeconds, &sLocalTime);
//
// Print the the local time into the page buffer.
//
usprintf(ptr, "%3s %3s %2d, %4d %02d:%02d:%02d",
g_ppcDay[sLocalTime.ucWday], g_ppcMonth[sLocalTime.ucMon],
sLocalTime.ucMday, sLocalTime.usYear, sLocalTime.ucHour,
sLocalTime.ucMin, sLocalTime.ucSec);
*(ptr + 26) = cTemp;
//
// Clear the extension data and return the count.
//
file->pextension = NULL;
return(ptTree->len);
}
//
// Here, return EOF ... we don't now how to process this file.
//
else
{
return(-1);
}
}
//
// Check to see if more data is available.
//
if(file->len == file->index)
{
//
// There is no remaining data. Return a -1 for EOF indication.
//
return(-1);
}
//
// Determine how much data we can copy. The minimum of the 'count'
// parameter or the available data in the file system buffer.
//
iAvailable = file->len - file->index;
if(iAvailable > count)
{
iAvailable = count;
}
//
// Copy the data.
//
memcpy(buffer, file->data + file->index, iAvailable);
file->index += iAvailable;
//
// Return the count of data that we copied.
//
return(iAvailable);
}
//*****************************************************************************
//
// Writes a message to the log. The message is preceeded by a time stamp, and
// the message can not exceed 28 characters in length (unless g_pcBuffer is
// increased in size).
//
//*****************************************************************************
void
LogWrite(char *pcPtr)
{
tTime sTime;
//
// Convert the current time from seconds since Jan 1, 1970 to the month,
// day, year, hour, minute, and second equivalent.
//
ulocaltime(g_ulTime, &sTime);
//
// Construct the log message with the time stamp preceeding it.
//
usprintf(g_pcBuffer,
"%s %s %2d %02d:%02d:%02d.%02d UT %d => %s\r\n",
g_ppcDays[sTime.ucWday], g_ppcMonths[sTime.ucMon], sTime.ucMday,
sTime.ucHour, sTime.ucMin, sTime.ucSec, g_ulTimeCount / 10,
sTime.usYear, pcPtr);
//
// Get a pointer to the start of the log message.
//
pcPtr = g_pcBuffer;
//
// Disable the UART interrupt to prevent the UART interrupt handler from
// executing, which would cause corruption of the logging state (possibly
// losing characters in the process).
//
UARTIntDisable(UART1_BASE, UART_INT_TX);
//
// See if the software FIFO is empty.
//
if(g_ulReadPtr == g_ulWritePtr)
{
//
// The software FIFO is empty, so copy as many characters from the log
// message into the hardware FIFO as will fit.
//
while(*pcPtr && (UARTCharPutNonBlocking(UART1_BASE, *pcPtr) == true))
{
pcPtr++;
}
}
//
// Copy as many characters from the log message into the software FIFO as
// will fit.
//
while(*pcPtr &&
(((g_ulWritePtr + 1) & (SOFT_FIFO_SIZE - 1)) != g_ulReadPtr))
{
g_pcTransmitBuffer[g_ulWritePtr] = *pcPtr++;
g_ulWritePtr = (g_ulWritePtr + 1) & (SOFT_FIFO_SIZE - 1);
}
//
// Re-enable the UART interrupt.
//
UARTIntEnable(UART1_BASE, UART_INT_TX);
}
//*****************************************************************************
//
// This function is called when in VIEW mode. The acquired data is written
// as text strings which will appear on the eval board display.
//
//*****************************************************************************
static void
UpdateViewerData(const tLogRecord *psRecord)
{
static char pcViewerBuf[24];
uint32_t ui32Idx, pui32RTC;
struct tm sTime;
//
// Loop through the analog channels and update the text display strings.
//
for(ui32Idx = LOG_ITEM_USER0; ui32Idx <= LOG_ITEM_USER3; ui32Idx++)
{
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), " CH%u: %u.%03u V ",
ui32Idx - LOG_ITEM_USER0, psRecord->pi16Items[ui32Idx] / 1000,
psRecord->pi16Items[ui32Idx] % 1000);
MenuUpdateText(ui32Idx, pcViewerBuf);
}
//
// Loop through the accel channels and update the text display strings.
//
for(ui32Idx = LOG_ITEM_ACCELX; ui32Idx <= LOG_ITEM_ACCELZ; ui32Idx++)
{
int16_t i16Accel = psRecord->pi16Items[ui32Idx];
i16Accel *= (i16Accel < 0) ? -1 : 1;
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), " %c: %c%d.%02u g ",
(ui32Idx - LOG_ITEM_ACCELX) + 'X',
psRecord->pi16Items[ui32Idx] < 0 ? '-' : '+',
i16Accel / 100, i16Accel % 100);
MenuUpdateText(ui32Idx, pcViewerBuf);
}
//
// Update the display string for internal temperature.
//
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), " INT: %d.%01u C ",
psRecord->pi16Items[LOG_ITEM_INTTEMP] / 10,
psRecord->pi16Items[LOG_ITEM_INTTEMP] % 10);
MenuUpdateText(LOG_ITEM_INTTEMP, pcViewerBuf);
//
// Update the display string for external temperature.
//
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), " EXT: %d.%01u C ",
psRecord->pi16Items[LOG_ITEM_EXTTEMP] / 10,
psRecord->pi16Items[LOG_ITEM_EXTTEMP] % 10);
MenuUpdateText(LOG_ITEM_EXTTEMP, pcViewerBuf);
//
// Update the display string for processor current.
//
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), " %u.%01u mA ",
psRecord->pi16Items[LOG_ITEM_CURRENT] / 10,
psRecord->pi16Items[LOG_ITEM_CURRENT] % 10);
MenuUpdateText(LOG_ITEM_CURRENT, pcViewerBuf);
//
// Update the display strings for time and data.
//
pui32RTC = HibernateRTCGet();
ulocaltime(pui32RTC, &sTime);
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), "%4u/%02u/%02u",
sTime.tm_year+1900, sTime.tm_mon + 1, sTime.tm_mday);
MenuUpdateText(TEXT_ITEM_DATE, pcViewerBuf);
usnprintf(pcViewerBuf, sizeof(pcViewerBuf), "%02u:%02u:%02u",
sTime.tm_hour, sTime.tm_min, sTime.tm_sec);
MenuUpdateText(TEXT_ITEM_TIME, pcViewerBuf);
}