le_gpio_interface.h

    1 
    2 
    3 /*
    4  * ====================== WARNING ======================
    5  *
    6  * THE CONTENTS OF THIS FILE HAVE BEEN AUTO-GENERATED.
    7  * DO NOT MODIFY IN ANY WAY.
    8  *
    9  * ====================== WARNING ======================
   10  */
   11 
   12 /**
   13  * @page c_gpio GPIO
   14  *
   15  * @ref le_gpio_interface.h "API Reference" <br>
   16  * @ref sampleApps_gpioCf3 "GPIO sample app"
   17  *
   18  * <HR>
   19  *
   20  * This API is used by apps to control general-purpose digital input/output pins.
   21  *
   22  * A GPIO pin typically has one or more of the following features:
   23  * - configured as an input pin or an output pin.
   24  * - have an internal pull-up resistor or pull-down resistor enabled, or neither.
   25  * - if an output, can be push-pull or open-drain.
   26  * - if an input, can trigger an @e interrupt (asynchronous notification of state change).
   27  *
   28  * Output pins can be driven in three modes:
   29  * - <b>push-pull</b> one transistor connects to the supply and another transistor connects to
   30  * ground (only one is operated at a time).
   31  * - <b>tri-state</b> same as push-pull with an added high-impedance (high Z) state to disconnect
   32  *    pin from both ground and supply.
   33  * - <b>open drain</b> transistor connects only to ground. Can only be used to pull low.
   34  *
   35  * Pins also have a @e polarity mode:
   36  * - <b> active-high </b> polarity pin is read/written as a digital 1 (true) when its voltage is
   37  *  "high" and 0 (false) when its voltage is "low" (grounded).
   38  * - <b> active-low </b> pin is read/written as a digital 1 (true) when its voltage is
   39  *  "low" (grounded) and 0 (false) when its voltage is "high".
   40  *
   41  * The following functions are used to configure the GPIO pin:
   42  * - SetInput() - Configure as an input pin.
   43  * - SetPushPullOutput() - Configure as push-pull output pin (can drive high or low).
   44  * - SetTriStateOutput() - Configure as tri-state output pin (can drive high or low or neither).
   45  * - SetOpenDrainOutput() - Configure as open-drain output pin (only pulls low).
   46  * - EnablePullUp() - Enables the internal pull-up resistor (and disables the pull-down).
   47  * - EnablePullDown() - Enables the internal pull-down resistor (and disables the pull-up).
   48  * - DisableResistors() - Disables the internal pull-up/down resistors.
   49  * - SetEdgeSense() - Set the edge sensing on an input pin (only works if you have an EventHandler).
   50  *
   51  * To set the level of an output pin, call Activate(), Deactivate(), or SetHighZ().
   52  *
   53  * To poll the value of an input pin, call Read().
   54  *
   55  * Use the ChangeEvent to register a notification callback function to be called when the
   56  * state of an input pin changes. Thje type of edge detection can then be modified by calling
   57  * SetEdgeSense() or DisableEdgeSense()
   58  * @note The client will be killed for below scenarios:
   59  * - Only one handler can be registered per pin. Subsequent attempts to register a handler
   60  *   will result in the client being killed.
   61  * - If the GPIO object reference is NULL or not initialized.
   62  * - When unable to set edge detection correctly.
   63  *
   64  * The following functions can be used to read the current setting for a GPIO Pin. In a Linux
   65  * environment these values are read from the sysfs and reflect the actual value at the time
   66  * the function is called.
   67  * - IsOutput() - Is the pin currently an output?
   68  * - IsInput() - Is the pin currently an input?
   69  * - IsActive() - Is an output pin currently being driven? (corresponds to the value file in sysfs)
   70  * - GetPolarity() - Retrieve the current polarity (active-low or active-high)
   71  * - GetEdgeSense() - What edge sensing has been enabled on an input pin?
   72  * - GetPullUpDown() - What pull-up or pull-down has been enabled?
   73  *
   74  * Each GPIO pin is accessed through a single IPC service.  This makes it possible to use bindings
   75  * to control which GPIO pins each app is allowed to access.  It also simplifies the API by removing
   76  * the need to specify which pin is desired and allows the pins to be named differently in the
   77  * client and the server, so the client can be more portable. Only one client can connect to each
   78  * pin.
   79  *
   80  * @section thread Using the GPIOs in a thread
   81  *
   82  * Each GPIO pin can be accessed in a thread. APIs @c le_gpioPinXX_ConnectService or
   83  * @c le_gpioPinXXTryConnectService need to be called to connect the GPIOXX to the GPIO service
   84  * APIs in a thread. Normally, the ConnectService is automatically called for the main thread.
   85  *
   86  * Once the GPIOXX is used, it cannot be accessed by another thread. When no longer used, it can be
   87  * relinquished by calling API @c le_gpioPinXX_DisconnectService. The GPIO service for GPIOXX will
   88  * be disconnected leaving the GPIOXX free to be used by another thread.
   89  *
   90  * @warning In order to use the GPIO service for GPIOXX in a thread, API
   91  * @c le_gpioPinXX_DisconnectService must explicitly be called previously in the main thread.
   92  *
   93  * @section bindings Using Bindings
   94  *
   95  * To create a binding from your app to pin 22 of the GPIO service,
   96  * add something like this to your @c .adef binding section:
   97  *
   98  * @verbatim
   99 bindings:
  100 {
  101     ui.frontPanel.powerLed -> gpioService.le_gpio22
  102 }
  103 @endverbatim
  104  *
  105  * This connects your component called @c frontPanel to the instance
  106  * of this API that can be used to drive GPIO 22. Setting the pin high looks like this:
  107  * @code
  108  * {
  109  *     // Configure the output type
  110  *     powerLed_SetPushPullOutput(LE_GPIOPIN22_ACTIVE_HIGH, false);
  111  *
  112  *     // Some time later ... set the GPIO high
  113  *     powerLed_Activate();
  114  * }
  115  * @endcode
  116  *
  117  * For details on how the GPIOs exposed by this service map to a CF3 module
  118  * (like the WP85), see @ref sampleApps_gpioCf3 "GPIO sample app".
  119  *
  120  * @section gpioConfig Configuring available GPIOs
  121  *
  122  * The GPIOs that are available for use are advertised in the sysfs at
  123  * @verbatim /sys/class/gpio/gpiochip1/mask @endverbatim
  124  * For each entry in this bitmask, a service will be advertised to allow use of the pin.
  125  * However, if a pin needs to be disabled form being accessed, e.g. it carries out some system
  126  * function that should not be available to apps, then it can be disabled by adding an entry to the
  127  * config tree.
  128  *
  129  * For example, to disable pin 6 from being used, add the entry
  130  * @verbatim gpioService:/pins/disabled/n @endverbatim
  131  * where n is the GPIO number. The value should be set to true to disable that service. If the value
  132  * is either false or absent then the service will run. Entries can be added using the config tool,
  133  * for example  * @verbatim config set gpioService:/pins/disabled/13 true bool@endverbatim
  134  * will disable the service for pin 13. Note that specifying the type as bool is vital as the config
  135  * tool defaults to the string type, and hence any value set will default to false.
  136  *
  137  * Copyright (C) Sierra Wireless Inc.
  138  */
  139 /**
  140  * @file le_gpio_interface.h
  141  *
  142  * Legato @ref c_gpio include file.
  143  *
  144  * Copyright (C) Sierra Wireless Inc.
  145  */
  146 
  147 #ifndef LE_GPIO_INTERFACE_H_INCLUDE_GUARD
  148 #define LE_GPIO_INTERFACE_H_INCLUDE_GUARD
  149 
  150 
  151 #include "legato.h"
  152 
  153 
  154 //--------------------------------------------------------------------------------------------------
  155 /**
  156  * Type for handler called when a server disconnects.
  157  */
  158 //--------------------------------------------------------------------------------------------------
  159 typedef void (*le_gpio_DisconnectHandler_t)(void *);
  160 
  161 //--------------------------------------------------------------------------------------------------
  162 /**
  163  *
  164  * Connect the current client thread to the service providing this API. Block until the service is
  165  * available.
  166  *
  167  * For each thread that wants to use this API, either ConnectService or TryConnectService must be
  168  * called before any other functions in this API.  Normally, ConnectService is automatically called
  169  * for the main thread, but not for any other thread. For details, see @ref apiFilesC_client.
  170  *
  171  * This function is created automatically.
  172  */
  173 //--------------------------------------------------------------------------------------------------
  174 void le_gpio_ConnectService
  175 (
  176     void
  177 );
  178 
  179 //--------------------------------------------------------------------------------------------------
  180 /**
  181  *
  182  * Try to connect the current client thread to the service providing this API. Return with an error
  183  * if the service is not available.
  184  *
  185  * For each thread that wants to use this API, either ConnectService or TryConnectService must be
  186  * called before any other functions in this API.  Normally, ConnectService is automatically called
  187  * for the main thread, but not for any other thread. For details, see @ref apiFilesC_client.
  188  *
  189  * This function is created automatically.
  190  *
  191  * @return
  192  *  - LE_OK if the client connected successfully to the service.
  193  *  - LE_UNAVAILABLE if the server is not currently offering the service to which the client is
  194  *    bound.
  195  *  - LE_NOT_PERMITTED if the client interface is not bound to any service (doesn't have a binding).
  196  *  - LE_COMM_ERROR if the Service Directory cannot be reached.
  197  */
  198 //--------------------------------------------------------------------------------------------------
  199 le_result_t le_gpio_TryConnectService
  200 (
  201     void
  202 );
  203 
  204 //--------------------------------------------------------------------------------------------------
  205 /**
  206  * Set handler called when server disconnection is detected.
  207  *
  208  * When a server connection is lost, call this handler then exit with LE_FATAL.  If a program wants
  209  * to continue without exiting, it should call longjmp() from inside the handler.
  210  */
  211 //--------------------------------------------------------------------------------------------------
  212 void le_gpio_SetServerDisconnectHandler
  213 (
  214     le_gpio_DisconnectHandler_t disconnectHandler,
  215     void *contextPtr
  216 );
  217 
  218 //--------------------------------------------------------------------------------------------------
  219 /**
  220  *
  221  * Disconnect the current client thread from the service providing this API.
  222  *
  223  * Normally, this function doesn't need to be called. After this function is called, there's no
  224  * longer a connection to the service, and the functions in this API can't be used. For details, see
  225  * @ref apiFilesC_client.
  226  *
  227  * This function is created automatically.
  228  */
  229 //--------------------------------------------------------------------------------------------------
  230 void le_gpio_DisconnectService
  231 (
  232     void
  233 );
  234 
  235 
  236 //--------------------------------------------------------------------------------------------------
  237 /**
  238  * Pin polarities.
  239  */
  240 //--------------------------------------------------------------------------------------------------
  241 typedef enum
  242 {
  243     LE_GPIO_ACTIVE_HIGH = 0,
  244         ///< GPIO active-high, output is 1
  245     LE_GPIO_ACTIVE_LOW = 1
  246         ///< GPIO active-low, output is 0
  247 }
  248 le_gpio_Polarity_t;
  249 
  250 
  251 //--------------------------------------------------------------------------------------------------
  252 /**
  253  * Edge transitions.
  254  */
  255 //--------------------------------------------------------------------------------------------------
  256 typedef enum
  257 {
  258     LE_GPIO_EDGE_NONE = 0,
  259         ///< No edge detection
  260     LE_GPIO_EDGE_RISING = 1,
  261         ///< Notify when voltage goes from low to high.
  262     LE_GPIO_EDGE_FALLING = 2,
  263         ///< Notify when voltage goes from high to low.
  264     LE_GPIO_EDGE_BOTH = 3
  265         ///< Notify when pin voltage changes state in either direction.
  266 }
  267 le_gpio_Edge_t;
  268 
  269 
  270 //--------------------------------------------------------------------------------------------------
  271 /**
  272  * Reference type used by Add/Remove functions for EVENT 'le_gpio_ChangeEvent'
  273  */
  274 //--------------------------------------------------------------------------------------------------
  275 typedef struct le_gpio_ChangeEventHandler* le_gpio_ChangeEventHandlerRef_t;
  276 
  277 
  278 //--------------------------------------------------------------------------------------------------
  279 /**
  280  * Pull up or down.
  281  */
  282 //--------------------------------------------------------------------------------------------------
  283 typedef enum
  284 {
  285     LE_GPIO_PULL_OFF = 0,
  286         ///< Neither resistor is enabled
  287     LE_GPIO_PULL_DOWN = 1,
  288         ///< Pulldown resistor is enabled
  289     LE_GPIO_PULL_UP = 2
  290         ///< Pullup resistor is enabled
  291 }
  292 le_gpio_PullUpDown_t;
  293 
  294 
  295 //--------------------------------------------------------------------------------------------------
  296 /**
  297  * State change event handler (callback).
  298  */
  299 //--------------------------------------------------------------------------------------------------
  300 typedef void (*le_gpio_ChangeCallbackFunc_t)
  301 (
  302     bool state,
  303         ///< New state of pin (true = active, false = inactive).
  304     void* contextPtr
  305         ///<
  306 );
  307 
  308 //--------------------------------------------------------------------------------------------------
  309 /**
  310  * Configure the pin as an input pin.
  311  */
  312 //--------------------------------------------------------------------------------------------------
  313 le_result_t le_gpio_SetInput
  314 (
  315     le_gpio_Polarity_t polarity
  316         ///< [IN] Active-high or active-low.
  317 );
  318 
  319 //--------------------------------------------------------------------------------------------------
  320 /**
  321  * Configure the pin as a push-pull output pin.
  322  */
  323 //--------------------------------------------------------------------------------------------------
  324 le_result_t le_gpio_SetPushPullOutput
  325 (
  326     le_gpio_Polarity_t polarity,
  327         ///< [IN] Active-high or active-low.
  328     bool value
  329         ///< [IN] Initial value to drive (true = active, false = inactive)
  330 );
  331 
  332 //--------------------------------------------------------------------------------------------------
  333 /**
  334  * Configure the pin as a tri-state output pin.
  335  *
  336  * @note The initial state will be high-impedance.
  337  */
  338 //--------------------------------------------------------------------------------------------------
  339 le_result_t le_gpio_SetTriStateOutput
  340 (
  341     le_gpio_Polarity_t polarity
  342         ///< [IN] Active-high or active-low.
  343 );
  344 
  345 //--------------------------------------------------------------------------------------------------
  346 /**
  347  * Configure the pin as an open-drain output pin.  "High" is a high-impedance state, while "Low"
  348  * pulls the pin to ground.
  349  */
  350 //--------------------------------------------------------------------------------------------------
  351 le_result_t le_gpio_SetOpenDrainOutput
  352 (
  353     le_gpio_Polarity_t polarity,
  354         ///< [IN] Active-high or active-low.
  355     bool value
  356         ///< [IN] Initial value to drive (true = active, false = inactive)
  357 );
  358 
  359 //--------------------------------------------------------------------------------------------------
  360 /**
  361  * Enable the pull-up resistor (disables pull-down if previously enabled).
  362  */
  363 //--------------------------------------------------------------------------------------------------
  364 le_result_t le_gpio_EnablePullUp
  365 (
  366     void
  367 );
  368 
  369 //--------------------------------------------------------------------------------------------------
  370 /**
  371  * Enable the pull-down resistor (disables pull-up if previously enabled).
  372  */
  373 //--------------------------------------------------------------------------------------------------
  374 le_result_t le_gpio_EnablePullDown
  375 (
  376     void
  377 );
  378 
  379 //--------------------------------------------------------------------------------------------------
  380 /**
  381  * Disable the pull-up and pull-down resistors.  Does nothing if both are already disabled.
  382  */
  383 //--------------------------------------------------------------------------------------------------
  384 le_result_t le_gpio_DisableResistors
  385 (
  386     void
  387 );
  388 
  389 //--------------------------------------------------------------------------------------------------
  390 /**
  391  * Set output pin to active state.
  392  *
  393  * @warning Only valid for output pins.
  394  */
  395 //--------------------------------------------------------------------------------------------------
  396 le_result_t le_gpio_Activate
  397 (
  398     void
  399 );
  400 
  401 //--------------------------------------------------------------------------------------------------
  402 /**
  403  * Set output pin to inactive state.
  404  *
  405  * @warning Only valid for output pins.
  406  */
  407 //--------------------------------------------------------------------------------------------------
  408 le_result_t le_gpio_Deactivate
  409 (
  410     void
  411 );
  412 
  413 //--------------------------------------------------------------------------------------------------
  414 /**
  415  * Set output pin to high impedance state.
  416  *
  417  * @warning Only valid for tri-state or open-drain output pins.
  418  */
  419 //--------------------------------------------------------------------------------------------------
  420 le_result_t le_gpio_SetHighZ
  421 (
  422     void
  423 );
  424 
  425 //--------------------------------------------------------------------------------------------------
  426 /**
  427  * Read value of GPIO input pin.
  428  *
  429  * @return true = active, false = inactive.
  430  *
  431  * @note It is invalid to read an output pin.
  432  */
  433 //--------------------------------------------------------------------------------------------------
  434 bool le_gpio_Read
  435 (
  436     void
  437 );
  438 
  439 //--------------------------------------------------------------------------------------------------
  440 /**
  441  * Add handler function for EVENT 'le_gpio_ChangeEvent'
  442  *
  443  * Register a callback function to be called when an input pin changes state.
  444  *
  445  * If the pin is not capable of interrupt-driven operation, then it will be sampled every
  446  * sampleMs milliseconds.  Otherwise, sampleMs will be ignored.
  447  *
  448  * If this fails, either because the handler cannot be registered, or setting the
  449  * edge detection fails, then it will return a NULL reference.
  450  */
  451 //--------------------------------------------------------------------------------------------------
  452 le_gpio_ChangeEventHandlerRef_t le_gpio_AddChangeEventHandler
  453 (
  454     le_gpio_Edge_t trigger,
  455         ///< [IN] Change(s) that should trigger the callback to be called.
  456     le_gpio_ChangeCallbackFunc_t handlerPtr,
  457         ///< [IN] The callback function.
  458     void* contextPtr,
  459         ///< [IN]
  460     int32_t sampleMs
  461         ///< [IN] If not interrupt capable, sample the input this often (ms).
  462 );
  463 
  464 //--------------------------------------------------------------------------------------------------
  465 /**
  466  * Remove handler function for EVENT 'le_gpio_ChangeEvent'
  467  */
  468 //--------------------------------------------------------------------------------------------------
  469 void le_gpio_RemoveChangeEventHandler
  470 (
  471     le_gpio_ChangeEventHandlerRef_t handlerRef
  472         ///< [IN]
  473 );
  474 
  475 //--------------------------------------------------------------------------------------------------
  476 /**
  477  * Set the edge detection mode. This function can only be used when a handler is registered
  478  * in order to prevent interrupts being generated and not handled
  479  */
  480 //--------------------------------------------------------------------------------------------------
  481 le_result_t le_gpio_SetEdgeSense
  482 (
  483     le_gpio_Edge_t trigger
  484         ///< [IN] Change(s) that should trigger the callback to be called.
  485 );
  486 
  487 //--------------------------------------------------------------------------------------------------
  488 /**
  489  * Turn off edge detection
  490  */
  491 //--------------------------------------------------------------------------------------------------
  492 le_result_t le_gpio_DisableEdgeSense
  493 (
  494     void
  495 );
  496 
  497 //--------------------------------------------------------------------------------------------------
  498 /**
  499  * Check if the pin is configured as an output.
  500  *
  501  * @return true = output, false = input.
  502  */
  503 //--------------------------------------------------------------------------------------------------
  504 bool le_gpio_IsOutput
  505 (
  506     void
  507 );
  508 
  509 //--------------------------------------------------------------------------------------------------
  510 /**
  511  * Check if the pin is configured as an input.
  512  *
  513  * @return true = input, false = output.
  514  */
  515 //--------------------------------------------------------------------------------------------------
  516 bool le_gpio_IsInput
  517 (
  518     void
  519 );
  520 
  521 //--------------------------------------------------------------------------------------------------
  522 /**
  523  * Get the current value of edge sensing.
  524  *
  525  * @return The current configured value
  526  *
  527  * @note it is invalid to read the edge sense of an output
  528  */
  529 //--------------------------------------------------------------------------------------------------
  530 le_gpio_Edge_t le_gpio_GetEdgeSense
  531 (
  532     void
  533 );
  534 
  535 //--------------------------------------------------------------------------------------------------
  536 /**
  537  * Get the current value the pin polarity.
  538  *
  539  * @return The current configured value
  540  */
  541 //--------------------------------------------------------------------------------------------------
  542 le_gpio_Polarity_t le_gpio_GetPolarity
  543 (
  544     void
  545 );
  546 
  547 //--------------------------------------------------------------------------------------------------
  548 /**
  549  * Check if the pin is currently active.
  550  *
  551  * @return true = active, false = inactive.
  552  *
  553  * @note this function can only be used on output pins
  554  */
  555 //--------------------------------------------------------------------------------------------------
  556 bool le_gpio_IsActive
  557 (
  558     void
  559 );
  560 
  561 //--------------------------------------------------------------------------------------------------
  562 /**
  563  * Get the current value of pull up and down resistors.
  564  *
  565  * @return The current configured value
  566  */
  567 //--------------------------------------------------------------------------------------------------
  568 le_gpio_PullUpDown_t le_gpio_GetPullUpDown
  569 (
  570     void
  571 );
  572 
  573 #endif // LE_GPIO_INTERFACE_H_INCLUDE_GUARD
le_gpio_DisconnectHandler_t
void(* le_gpio_DisconnectHandler_t)(void *)
Definition: le_gpio_interface.h:159
le_gpio_DisconnectService
void le_gpio_DisconnectService(void)
le_gpio_IsInput
bool le_gpio_IsInput(void)
LE_GPIO_ACTIVE_HIGH
GPIO active-high, output is 1. 
Definition: le_gpio_interface.h:243
LE_GPIO_EDGE_BOTH
Notify when pin voltage changes state in either direction. 
Definition: le_gpio_interface.h:264
le_result_t
le_result_t
Definition: le_basics.h:35
le_gpio_PullUpDown_t
le_gpio_PullUpDown_t
Definition: le_gpio_interface.h:283
le_gpio_ConnectService
void le_gpio_ConnectService(void)
le_gpio_EnablePullUp
le_result_t le_gpio_EnablePullUp(void)
le_gpio_IsActive
bool le_gpio_IsActive(void)
le_gpio_GetPolarity
le_gpio_Polarity_t le_gpio_GetPolarity(void)
le_gpio_DisableEdgeSense
le_result_t le_gpio_DisableEdgeSense(void)
LE_GPIO_EDGE_FALLING
Notify when voltage goes from high to low. 
Definition: le_gpio_interface.h:262
LE_GPIO_ACTIVE_LOW
GPIO active-low, output is 0. 
Definition: le_gpio_interface.h:245
le_gpio_SetTriStateOutput
le_result_t le_gpio_SetTriStateOutput(le_gpio_Polarity_t polarity)
le_gpio_GetEdgeSense
le_gpio_Edge_t le_gpio_GetEdgeSense(void)
le_gpio_SetHighZ
le_result_t le_gpio_SetHighZ(void)
le_gpio_Polarity_t
le_gpio_Polarity_t
Definition: le_gpio_interface.h:241
le_gpio_Read
bool le_gpio_Read(void)
LE_GPIO_EDGE_RISING
Notify when voltage goes from low to high. 
Definition: le_gpio_interface.h:260
le_gpio_EnablePullDown
le_result_t le_gpio_EnablePullDown(void)
le_gpio_IsOutput
bool le_gpio_IsOutput(void)
LE_GPIO_PULL_DOWN
Pulldown resistor is enabled. 
Definition: le_gpio_interface.h:287
le_gpio_AddChangeEventHandler
le_gpio_ChangeEventHandlerRef_t le_gpio_AddChangeEventHandler(le_gpio_Edge_t trigger, le_gpio_ChangeCallbackFunc_t handlerPtr, void *contextPtr, int32_t sampleMs)
le_gpio_Deactivate
le_result_t le_gpio_Deactivate(void)
le_gpio_SetEdgeSense
le_result_t le_gpio_SetEdgeSense(le_gpio_Edge_t trigger)
le_gpio_TryConnectService
le_result_t le_gpio_TryConnectService(void)
le_gpio_RemoveChangeEventHandler
void le_gpio_RemoveChangeEventHandler(le_gpio_ChangeEventHandlerRef_t handlerRef)
LE_GPIO_PULL_OFF
Neither resistor is enabled. 
Definition: le_gpio_interface.h:285
legato.h
le_gpio_SetPushPullOutput
le_result_t le_gpio_SetPushPullOutput(le_gpio_Polarity_t polarity, bool value)
LE_GPIO_EDGE_NONE
No edge detection. 
Definition: le_gpio_interface.h:258
le_gpio_ChangeEventHandlerRef_t
struct le_gpio_ChangeEventHandler * le_gpio_ChangeEventHandlerRef_t
Definition: le_gpio_interface.h:275
le_gpio_SetServerDisconnectHandler
void le_gpio_SetServerDisconnectHandler(le_gpio_DisconnectHandler_t disconnectHandler, void *contextPtr)
le_gpio_DisableResistors
le_result_t le_gpio_DisableResistors(void)
le_gpio_Activate
le_result_t le_gpio_Activate(void)
le_gpio_ChangeCallbackFunc_t
void(* le_gpio_ChangeCallbackFunc_t)(bool state, void *contextPtr)
Definition: le_gpio_interface.h:301
LE_GPIO_PULL_UP
Pullup resistor is enabled. 
Definition: le_gpio_interface.h:289
le_gpio_SetInput
le_result_t le_gpio_SetInput(le_gpio_Polarity_t polarity)
le_gpio_GetPullUpDown
le_gpio_PullUpDown_t le_gpio_GetPullUpDown(void)
le_gpio_SetOpenDrainOutput
le_result_t le_gpio_SetOpenDrainOutput(le_gpio_Polarity_t polarity, bool value)
le_gpio_Edge_t
le_gpio_Edge_t
Definition: le_gpio_interface.h:256