/*******************************************************************************
* @fn SensorTagDisplay_suspend
*
* @brief Releases the SPI driver for use by other devices. Power to the LCD
* is retained.
*
* @param none
*
* @return none
*/
void SensorTagDisplay_suspend(void)
{
Display_clear(handle);
Display_print0(handle, DISPLAY_LINE_DEFAULT, 2, "Display off");
Display_control(handle, DISPLAY_CMD_TRANSPORT_CLOSE, NULL);
}
/**************************************************************************//**
* @brief Initialize the LS013B7DH03 display driver
*
* @return EMSTATUS code of the operation.
*****************************************************************************/
bool Display_init(void) {
/* Initialize the Platform Abstraction Layer (PAL) interface. */
PAL_TimerInit();
PAL_SpiInit();
PAL_GpioInit();
/* Setup GPIOs */
PAL_GpioPinModeSet(LCD_PORT_SCLK, LCD_PIN_SCLK, palGpioModePushPull, 0);
PAL_GpioPinModeSet(LCD_PORT_SI, LCD_PIN_SI, palGpioModePushPull, 0);
PAL_GpioPinModeSet(LCD_PORT_SCS, LCD_PIN_SCS, palGpioModePushPull, 0);
PAL_GpioPinModeSet(LCD_PORT_DISP_PWR,LCD_PIN_DISP_PWR,palGpioModePushPull,0);
PAL_GpioPinModeSet(LCD_PORT_EXTCOMIN,LCD_PIN_EXTCOMIN,palGpioModePushPull,0);
/* Setup system (via PAL) to toggle the EXTCOMIN pin every second. */
if (PAL_GpioPinAutoToggle(LCD_PORT_EXTCOMIN, LCD_PIN_EXTCOMIN,
LS013B7DH03_POLARITY_INVERSION_FREQUENCY)
!= PAL_EMSTATUS_OK)
{
return false;
}
Display_enable(true);
Display_clear();
return true;
}
/*******************************************************************************
* @fn SensorTagDisplay_resume
*
* @brief Reconnects the SPI driver for use by this devices.
*
* @param none
*
* @return none
*/
void SensorTagDisplay_resume(void)
{
Display_control(handle, DISPLAY_CMD_TRANSPORT_OPEN, NULL);
Display_clear(handle);
Display_print0(handle, DISPLAY_LINE_DEFAULT, 2, "Display on");
}
/*******************************************************************************
* @fn SensorTagDisplay_showStatus
*
* @brief Display main status parameters on the display.
*
* - device name
* - device address
* - firmware revision
* - GAP connection status
*
* @param none
*
* @return none
*/
void SensorTagDisplay_showStatus(void)
{
if (handle != NULL)
{
uint8_t buf[24];
char *gapStatusStr;
// Make sure display is blank
Display_clear(handle);
// Line 0: device info
DevInfo_GetParameter(DEVINFO_MODEL_NUMBER, buf);
Display_print0(handle, DISPLAY_LINE_DEV_INFO, 0, (const char*)buf);
// Line 1: board address
GAPRole_GetParameter(GAPROLE_BD_ADDR, buf);
Display_print0(handle, DISPLAY_LINE_BOARD_ADDR,
1, Util_convertBdAddr2Str(buf));
// Line 2: firmware revision
DevInfo_GetParameter(DEVINFO_FIRMWARE_REV, buf);
Display_print0(handle, DISPLAY_LINE_FWREV, 1, "FW rev.");
buf[5] = '\0'; // Display max 5 characters (leave out date part)
Display_print0(handle, DISPLAY_LINE_FWREV, 10, (const char*)buf);
// Line 11: GAP connection status
switch (gapProfileState)
{
case GAPROLE_INIT:
gapStatusStr = "Init";
break;
case GAPROLE_STARTED:
gapStatusStr = "Started";
break;
case GAPROLE_ADVERTISING:
gapStatusStr = "Advertising";
break;
case GAPROLE_ADVERTISING_NONCONN:
gapStatusStr = "Advertising-nc";
break;
case GAPROLE_WAITING:
gapStatusStr = "Waiting";
break;
case GAPROLE_WAITING_AFTER_TIMEOUT:
gapStatusStr = "Waiting-tout";
break;
case GAPROLE_CONNECTED:
gapStatusStr = "Connected";
break;
case GAPROLE_CONNECTED_ADV:
gapStatusStr = "Connected-adv";
break;
case GAPROLE_ERROR:
gapStatusStr = "Error";
break;
default:
gapStatusStr = "Unknown";
break;
}
Display_print0(handle, DISPLAY_LINE_GAP, 2, gapStatusStr);
}
}
/*********************************************************************
* @fn SensorTagDisplay_processCharChangeEvt
*
* @brief Process a change in the IO characteristics
*
* @return none
*/
void SensorTagDisplay_processCharChangeEvt(uint8_t paramID)
{
if (paramID == DISPLAY_CONF)
{
uint8_t config[DISPLAY_CONF_LEN];
Display_getParameter(DISPLAY_CONF, config);
// Execute the control sequence
switch (config[DISPLAY_CMD_OFFSET])
{
case DISPLAY_CONF_OFF:
if (handle != NULL)
{
// NB! Has no effect on SensorTag because LCD_ENABLE pin is
// shared with UART_TX, causing the LCD to get enabled again
// as soon as the PINs used by the LCD are released.
Display_clear(handle);
Display_print0(handle, DISPLAY_LINE_DEFAULT, 2, "Display off");
Display_close(handle);
handle = NULL;
}
break;
case DISPLAY_CONF_ON:
// Initialize LCD
if (handle == NULL)
{
Display_Params params;
Display_Params_init(¶ms);
params.lineClearMode = DISPLAY_CLEAR_NONE;
handle = Display_open(Display_Type_LCD, ¶ms);
// Update status
SensorTagDisplay_showStatus();
}
break;
case DISPLAY_CONF_CLR:
// Clear display
if (handle != NULL)
{
Display_clear(handle);
}
break;
case DISPLAY_CONF_CLR_LINE:
// Clear line
pos.line = config[DISPLAY_LINE_OFFSET];
if (handle != NULL)
{
Display_clearLines(handle, pos.line, pos.line);
}
break;
case DISPLAY_CONF_INV:
if (handle != NULL)
{
uint8_t tmp;
// Swap foreground and background colors
tmp = color.fg;
color.fg = color.bg;
color.bg = tmp;
Display_control(handle, DISPLAYSHARP_CMD_SET_COLORS, &color);
// Update status
SensorTagDisplay_showStatus();
}
break;
case DISPLAY_CONF_MOV:
// Store active "cursor" position
pos.line = config[DISPLAY_LINE_OFFSET];
pos.column = config[DISPLAY_COL_OFFSET];
break;
default:
break;
}
}
if (paramID == DISPLAY_DATA && handle != NULL)
{
uint8_t data[DISPLAY_BUFFER_LEN];
Display_getParameter(DISPLAY_DATA, data);
Display_print0(handle, pos.line, pos.column, (const char*)data);
}
}
