106 lines
3.4 KiB
C
106 lines
3.4 KiB
C
/*
|
|
ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
/**
|
|
* @file LPC8xx/pal_lld.c
|
|
* @brief LPC8xx GPIO low level driver code.
|
|
*
|
|
* @addtogroup PAL
|
|
* @{
|
|
*/
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
|
|
#if HAL_USE_PAL || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported variables. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local variables. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local functions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver interrupt handlers. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported functions. */
|
|
/*===========================================================================*/
|
|
/**
|
|
* @brief LPC8xx I/O ports configuration.
|
|
* @details GPIO unit registers initialization.
|
|
*
|
|
* @param[in] config the LPC8xx ports configuration
|
|
*
|
|
* @notapi
|
|
*/
|
|
void _pal_lld_init(const PALConfig *config) {
|
|
|
|
/* Enable clocks to GPIO */
|
|
LPC_SYSCON->SYSAHBCLKCTRL |= (1<<6);
|
|
|
|
LPC_GPIO_PORT->DIR0 = config->dir;
|
|
LPC_GPIO_PORT->PIN0 = config->data;
|
|
}
|
|
|
|
/**
|
|
* @brief Pads mode setup.
|
|
* @details This function programs a pads group belonging to the same port
|
|
* with the specified mode.
|
|
* @note @p PAL_MODE_UNCONNECTED is implemented as push pull output with
|
|
* high state.
|
|
* @note This function does not alter the @p PINSELx registers. Alternate
|
|
* functions setup must be handled by device-specific code.
|
|
*
|
|
* @param[in] port the port identifier
|
|
* @param[in] mask the group mask
|
|
* @param[in] mode the mode
|
|
*
|
|
* @notapi
|
|
*/
|
|
void _pal_lld_setgroupmode(ioportid_t port,
|
|
ioportmask_t mask,
|
|
iomode_t mode) {
|
|
|
|
switch (mode)
|
|
{
|
|
case PAL_MODE_RESET:
|
|
case PAL_MODE_INPUT:
|
|
port->DIR0 &= ~mask;
|
|
break;
|
|
|
|
case PAL_MODE_UNCONNECTED:
|
|
palSetPort(port, PAL_WHOLE_PORT);
|
|
//no break
|
|
case PAL_MODE_OUTPUT_PUSHPULL:
|
|
port->DIR0 |= mask;
|
|
break;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
#endif /* HAL_USE_PAL */
|
|
|
|
/** @} */
|