Pc Controller

Collaboration diagram for Pc Controller:

Files
file	temp_sensor_handler.cpp
	TempSensorHandler source files for pc controller.
file	temp_sensor_handler.hpp
	header file for TempSensorHandler class of the pc controller device

Classes
class	PowerCtrlHandler
	power controller class for the bed room light controller, responsible for handling an requests pertaining to the power controller namespace More...
class	TempSensorHandler
	TempSensorHandler class, responsible for handling temperature sensor endpoint functionalities of aws. More...

Macros
#define	SUBSCRIBE_TOPIC   "/pcReq"
	topic that the pc controller subscribe to
#define	PUBLISH_TOPIC   "/pcRes"
	topic that the pc controller will publish replise to
#define	PC_CTRL_PIN   5
	pins used to control the relay controlling the pc motherboard pins
#define	PC_BUTTON_PIN   4
	pins used to sense the pc case switch actuation
#define	ANALOG_PIN   0
	analog pins used for reading temperature sensor reading
#define	TOTAL_HANDLER   2
	change this if you use more or less handler
#define	REGISTER_INTERRUPT()
	Reigiter pc controller interrupt. More...
#define	INITIALIZE_HANDLER()
	change this function to customize the list of handler More...
#define	SWITCH_ON_STATE   1
	state of the pin when the relay is on
#define	BUTTON_DEBOUNCE_MS   50
	debouncing period for the pc case switch
#define	SWITCH_DELAY_MS   150
	the delay between turning on and turning off the relay controlling the pc motherboard pins, used to make sure that the switching actually has an observable effect
#define	TMP36_COEFF   3300 / 1024
	TMP36 coefficient to convert from analog voltage to celsius.

Functions
void	handlePolling (struct mg_connection *mgCon, ParentHandler *handlerList[], char *jsonBuf)
	dummy empty function since pc controller has no polling need More...
static void	PowerCtrlHandler::buttonInterruptHandler (int pin, void *arg)
	handle the case power on switch interrupt More...
static void	PowerCtrlHandler::setPcStatus (bool pcStatus)
	setter for the pc status variable More...
static bool	PowerCtrlHandler::getPcStatus (void)
	used to get whether the pc is on or off More...
HandlerError	TempSensorHandler::handleRequest (struct mg_connection *mgCon, struct mg_str *message, char *commandName, char *response)
	handle aws request pertainting to temperature sensor endpoint for the pc controller More...
HandlerError	TempSensorHandler::handleReport (char *stateReport)
	handle state report pertainting to temperature sensor endpoint for the pc controller The function will mesasure the temperature(using the TMP36 sensor for now) and put it in areport and write it to a buffer More...

Detailed Description

Macro Definition Documentation

#define INITIALIZE_HANDLER

(

)

Value:

static PowerCtrlHandler  pwrController; \
  static TempSensorHandler tempHandler;   \
  static ParentHandler*    _handlerList[TOTAL_HANDLER] = {&pwrController, &tempHandler};

change this function to customize the list of handler

#define REGISTER_INTERRUPT

(

)

Value:

do {                                                                     \
    mgos_gpio_set_button_handler(PC_BUTTON_PIN,                            \
                                 MGOS_GPIO_PULL_UP,                        \
                                 MGOS_GPIO_INT_EDGE_NEG,                   \
                                 BUTTON_DEBOUNCE_MS,                       \
                                 PowerCtrlHandler::buttonInterruptHandler, \
                                 NULL);                                    \
  } while (0)

Reigiter pc controller interrupt.

Register a button interrupt to actuate on pc's case power button

Function Documentation

void PowerCtrlHandler::buttonInterruptHandler ( int  pin, void *  arg  )

static

handle the case power on switch interrupt

Parameters

pin	pin that the interrupt comes from
arg	any custom arguments that is to be passed to the interrupt handler, not used in This case When the user presses the power on swithc on the case, the interrupt will be called to actuate on that switch as well as update the status of the pc

bool PowerCtrlHandler::getPcStatus ( void  )

static

used to get whether the pc is on or off

Returns

true pc is on

false pc is off read the state variable to get the lastknown status of the pc

void handlePolling	(	struct mg_connection *	mgCon,
		ParentHandler *	handlerList[],
		char *	jsonBuf
	)

dummy empty function since pc controller has no polling need

dummy empty function since bed room light controller has no polling need

Parameters

mgCon	mongoose network connection
handlerList	list of pointer to handler object
jsonBuf	json buffer for writing data

HandlerError TempSensorHandler::handleReport ( char *  stateReport )

virtual

handle state report pertainting to temperature sensor endpoint for the pc controller The function will mesasure the temperature(using the TMP36 sensor for now) and put it in areport and write it to a buffer

Parameters

stateReport

buffer to write report to

Returns

HandlerError

Implements ParentHandler.

HandlerError TempSensorHandler::handleRequest ( struct mg_connection *  mgCon, struct mg_str *  message, char *  commandName, char *  response  )

virtual

handle aws request pertainting to temperature sensor endpoint for the pc controller

Parameters

mgCon	struct representing connection to server
message	message sent to the mcu by the server
response	buffer to write the response to

Returns

HandlerError

This function is empty and is only here to fulfill the contract with the parent handler because the aws temperature sensor gets reading only through state report and not regular request

Implements ParentHandler.

void PowerCtrlHandler::setPcStatus ( bool  pcStatus )

static

setter for the pc status variable

Parameters

pcStatus

the status to change the variable to