/*! \fn guiGetPinFromUser(volatile uint16_t* pin_code, uint8_t stringID)
* \brief Ask the user to enter a PIN
* \param pin_code Pointer to where to store the pin code
* \param stringID String ID
* \return If the user approved the request
*/
RET_TYPE guiGetPinFromUser(volatile uint16_t* pin_code, uint8_t stringID)
{
// If we don't need a pin code, send default one
#if defined(NO_PIN_CODE_REQUIRED) || defined(HARDWARE_V1) || defined(V2_DEVELOPERS_BOTPCB_BOOTLOADER_SETUP)
*pin_code = SMARTCARD_DEFAULT_PIN;
return RETURN_OK;
#endif
RET_TYPE ret_val = RETURN_NOK;
uint8_t selected_digit = 0;
uint8_t finished = FALSE;
uint8_t current_pin[4];
RET_TYPE temp_rettype;
int8_t temp_int8;
// Set current pin to 0000
memset((void*)current_pin, 0, 4);
// Draw pin entering bitmap
oledClear();
oledBitmapDrawFlash(0, 0, BITMAP_YES_NO, 0);
oledBitmapDrawFlash(83, 51, BITMAP_PIN_LINES, 0);
oledBitmapDrawFlash(238, 23, BITMAP_RIGHT_ARROW, 0);
oledPutstrXY(0, 0, OLED_CENTRE, readStoredStringToBuffer(stringID));
oledDisplayOtherBuffer();
oledSetFont(FONT_PROFONT_24);
oledWriteActiveBuffer();
// Display current pin on screen
guiDisplayPinOnPinEnteringScreen(current_pin, selected_digit);
// While the user hasn't entered his pin
while(!finished)
{
// Still process the USB commands
usbProcessIncoming(USB_CALLER_PIN);
// Detect key touches
temp_rettype = touchDetectionRoutine(0);
// Send it to the touch wheel interface logic
temp_int8 = touchWheelIntefaceLogic(temp_rettype);
// Position increment / decrement
if (temp_int8 != 0)
{
if ((current_pin[selected_digit] == 0x0F) && (temp_int8 == 1))
{
current_pin[selected_digit] = 0xFF;
}
else if ((current_pin[selected_digit] == 0) && (temp_int8 == -1))
{
current_pin[selected_digit] = 0x10;
}
current_pin[selected_digit] += temp_int8;
guiDisplayPinOnPinEnteringScreen(current_pin, selected_digit);
}
if ((isSmartCardAbsent() == RETURN_OK) || (hasTimerExpired(TIMER_USERINT, TRUE) == TIMER_EXPIRED))
{
// Smartcard removed, no reason to continue
ret_val = RETURN_NOK;
finished = TRUE;
}
if (temp_rettype & RETURN_LEFT_PRESSED)
{
if (selected_digit == 1)
{
oledFillXY(0, 23, 18, 18, 0x00);
oledBitmapDrawFlash(0, 24, BITMAP_CROSS, 0);
}
if (selected_digit > 0)
{
// When going back set pin digit to 0
current_pin[selected_digit] = 0;
current_pin[--selected_digit] = 0;
}
else
{
ret_val = RETURN_NOK;
finished = TRUE;
}
guiDisplayPinOnPinEnteringScreen(current_pin, selected_digit);
oledBitmapDrawFlash(238, 23, BITMAP_RIGHT_ARROW, 0);
}
else if (temp_rettype & RETURN_RIGHT_PRESSED)
{
if (selected_digit == 2)
{
oledFillXY(238, 23, 18, 18, 0x00);
oledBitmapDrawFlash(240, 24, BITMAP_TICK, 0);
}
if (selected_digit < 3)
{
selected_digit++;
}
else
{
ret_val = RETURN_OK;
finished = TRUE;
}
guiDisplayPinOnPinEnteringScreen(current_pin, selected_digit);
oledBitmapDrawFlash(0, 23, BITMAP_LEFT_ARROW, 0);
}
}
// Reset default font
oledSetFont(FONT_DEFAULT);
oledWriteInactiveBuffer();
// Store the pin
*pin_code = (uint16_t)(((uint16_t)(current_pin[0]) << 12) | (((uint16_t)current_pin[1]) << 8) | (current_pin[2] << 4) | current_pin[3]);
// Set current pin to 0000
memset((void*)current_pin, 0, 4);
// Prevent touches until the user lifts his finger
touchInhibitUntilRelease();
// Return success status
return ret_val;
}
/*! \fn loginSelectionScreen(void)
* \brief Screen displayed to let the user choose/find a login
* \return Valid child node address or 0 otherwise
*/
uint16_t loginSelectionScreen(void)
{
char currentText[SEARCHTEXT_MAX_LENGTH+1];
uint8_t displayRefreshNeeded = TRUE;
uint16_t ret_val = NODE_ADDR_NULL;
uint8_t wasWheelReleased = TRUE;
uint16_t tempParentAddresses[5];
uint8_t currentStringIndex = 0;
uint8_t nbMatchedParents= 0;
uint8_t finished = FALSE;
RET_TYPE temp_rettype;
uint8_t led_mask = 0;
int8_t temp_int8;
// Set current text to a
last_matching_parent_addr = NODE_ADDR_NULL;
last_matching_parent_number = 0;
memcpy(currentText, "a\x00\x00\x00\x00", sizeof(currentText));
// Draw bitmap, display it and write active buffer
oledBitmapDrawFlash(0, 0, BITMAP_LOGIN_FIND, 0);
oledDisplayOtherBuffer();
oledWriteActiveBuffer();
// While the user hasn't chosen a credential
while(!finished)
{
if (displayRefreshNeeded == TRUE)
{
nbMatchedParents = displayCurrentSearchLoginTexts(currentText, tempParentAddresses, currentStringIndex);
displayRefreshNeeded = FALSE;
// Light only the available choices and right arrow
led_mask = 0;
for (temp_int8 = nbMatchedParents; temp_int8 < 5; temp_int8++)
{
led_mask |= (1 << temp_int8);
}
}
// Detect key touches
temp_rettype = touchDetectionRoutine(led_mask);
// Algo to differentiate a tap from a scroll
if ((temp_rettype & RETURN_WHEEL_PRESSED) && (wasWheelReleased == TRUE))
{
// We use the timer dedicated to touch inhibit for min
activateTimer(TIMER_TOUCH_INHIBIT, TAP_MIN_DEL);
// We use the timer dedicated to caps detect for max
activateTimer(TIMER_CAPS, TAP_MAX_DEL);
// This works because we use the same clearing flags
wasWheelReleased = FALSE;
}
else if (temp_rettype & RETURN_WHEEL_RELEASED)
{
// Check if it's a tap and that the selected domain is valid
if ((hasTimerExpired(TIMER_CAPS, FALSE) == TIMER_RUNNING) && (hasTimerExpired(TIMER_TOUCH_INHIBIT, FALSE) == TIMER_EXPIRED) && (getWheelTouchDetectionQuarter() < nbMatchedParents))
{
ret_val = tempParentAddresses[getWheelTouchDetectionQuarter()];
finished = TRUE;
}
wasWheelReleased = TRUE;
}
// Send it to the touch wheel interface logic
temp_int8 = touchWheelIntefaceLogic(temp_rettype);
// Position increment / decrement
if (temp_int8 != 0)
{
if ((currentText[currentStringIndex] == 0x7A) && (temp_int8 == 1))
{
// z->0 wrap
currentText[currentStringIndex] = 0x2F;
}
if ((currentText[currentStringIndex] == 0x39) && (temp_int8 == 1))
{
// 9->a wrap
currentText[currentStringIndex] = 0x60;
}
else if ((currentText[currentStringIndex] == 0x30) && (temp_int8 == -1))
{
// 0->z wrap
currentText[currentStringIndex] = 0x7B;
}
else if ((currentText[currentStringIndex] == 0x61) && (temp_int8 == -1))
{
// a->9 wrap
currentText[currentStringIndex] = 0x3A;
}
currentText[currentStringIndex] += temp_int8;
displayRefreshNeeded = TRUE;
}
if ((isSmartCardAbsent() == RETURN_OK) || (hasTimerExpired(TIMER_USERINT, TRUE) == TIMER_EXPIRED))
{
// Smartcard removed or no interaction for a while
finished = TRUE;
}
else if (temp_rettype & RETURN_LEFT_PRESSED)
{
// Change search index
if (currentStringIndex > 0)
{
currentText[currentStringIndex--] = 0;
displayRefreshNeeded = TRUE;
}
else
{
finished = TRUE;
}
}
else if ((temp_rettype & RETURN_RIGHT_PRESSED) && (nbMatchedParents > 4))
{
// Change search index only if we need to...
currentText[++currentStringIndex] = 'a';
displayRefreshNeeded = TRUE;
}
}
// Set inactive buffer write by default
oledWriteInactiveBuffer();
return ret_val;
}
