amiro-lld / drivers / button / v1 / alld_button.c @ 1304b12b
History | View | Annotate | Download (2.961 KB)
| 1 |
/*
|
|---|---|
| 2 |
AMiRo-LLD is a compilation of low-level hardware drivers for the Autonomous Mini Robot (AMiRo) platform.
|
| 3 |
Copyright (C) 2016..2019 Thomas Schöpping et al.
|
| 4 |
|
| 5 |
This program is free software: you can redistribute it and/or modify
|
| 6 |
it under the terms of the GNU Lesser General Public License as published by
|
| 7 |
the Free Software Foundation, either version 3 of the License, or
|
| 8 |
(at your option) any later version.
|
| 9 |
|
| 10 |
This program is distributed in the hope that it will be useful,
|
| 11 |
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
GNU Lesser General Public License for more details.
|
| 14 |
|
| 15 |
You should have received a copy of the GNU Lesser General Public License
|
| 16 |
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
| 17 |
*/
|
| 18 |
|
| 19 |
/**
|
| 20 |
* @file alld_button.c
|
| 21 |
* @brief Button function implementations.
|
| 22 |
*
|
| 23 |
* @addtogroup lld_button
|
| 24 |
* @{
|
| 25 |
*/
|
| 26 |
|
| 27 |
#include <alld_button.h> |
| 28 |
|
| 29 |
/******************************************************************************/
|
| 30 |
/* LOCAL DEFINITIONS */
|
| 31 |
/******************************************************************************/
|
| 32 |
|
| 33 |
/******************************************************************************/
|
| 34 |
/* EXPORTED VARIABLES */
|
| 35 |
/******************************************************************************/
|
| 36 |
|
| 37 |
/******************************************************************************/
|
| 38 |
/* LOCAL TYPES */
|
| 39 |
/******************************************************************************/
|
| 40 |
|
| 41 |
/******************************************************************************/
|
| 42 |
/* LOCAL VARIABLES */
|
| 43 |
/******************************************************************************/
|
| 44 |
|
| 45 |
/******************************************************************************/
|
| 46 |
/* LOCAL FUNCTIONS */
|
| 47 |
/******************************************************************************/
|
| 48 |
|
| 49 |
/******************************************************************************/
|
| 50 |
/* EXPORTED FUNCTIONS */
|
| 51 |
/******************************************************************************/
|
| 52 |
|
| 53 |
/**
|
| 54 |
* @brief Get the current status of the button.
|
| 55 |
* @param[in] button The button driver object.
|
| 56 |
* @param[out] state The state object to fill.
|
| 57 |
* @return An indicator whether the call was successful.
|
| 58 |
*/
|
| 59 |
apalExitStatus_t button_lld_get(const ButtonDriver* const button, button_lld_state_t* const state) |
| 60 |
{
|
| 61 |
apalDbgAssert(button != NULL);
|
| 62 |
apalDbgAssert(state != NULL);
|
| 63 |
|
| 64 |
apalControlGpioState_t gpio_state; |
| 65 |
apalExitStatus_t status = apalControlGpioGet(button->gpio, &gpio_state); |
| 66 |
*state = gpio_state == APAL_GPIO_ON ? BUTTON_LLD_STATE_PRESSED : BUTTON_LLD_STATE_RELEASED; |
| 67 |
return status;
|
| 68 |
} |
| 69 |
|
| 70 |
/** @} */
|
| 71 |
|