mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-25 15:57:38 +00:00
113 lines
3.7 KiB
C
Executable File
113 lines
3.7 KiB
C
Executable File
/*
|
|
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 LPC214x/pal_lld.c
|
|
* @brief LPC214x FIO low level driver code.
|
|
*
|
|
* @addtogroup PAL
|
|
* @{
|
|
*/
|
|
|
|
#include "ch.h"
|
|
#include "hal.h"
|
|
|
|
#if HAL_USE_PAL || defined(__DOXYGEN__)
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported variables. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local variables and types. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver local functions. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver interrupt handlers. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Driver exported functions. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @brief LPC214x I/O ports configuration.
|
|
* @details FIO units and PINSEL registers initialization.
|
|
*
|
|
* @param[in] config the LPC214x ports configuration
|
|
*
|
|
* @notapi
|
|
*/
|
|
void _pal_lld_init(const PALConfig *config) {
|
|
|
|
/* Enables the access through the fast registers.*/
|
|
SCS = 3;
|
|
|
|
/* I/O pads initial assignment, device drivers may change this setup at a
|
|
* later time.*/
|
|
PINSEL0 = config->pinsel0;
|
|
PINSEL1 = config->pinsel1;
|
|
PINSEL2 = config->pinsel2;
|
|
|
|
/* I/O pads direction initial setting.*/
|
|
FIO0Base->FIO_MASK = 0;
|
|
FIO0Base->FIO_PIN = config->P0Data.pin;
|
|
FIO0Base->FIO_DIR = config->P0Data.dir;
|
|
FIO1Base->FIO_MASK = 0;
|
|
FIO1Base->FIO_PIN = config->P1Data.pin;
|
|
FIO1Base->FIO_DIR = config->P1Data.dir;
|
|
}
|
|
|
|
/**
|
|
* @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->FIO_DIR &= ~mask;
|
|
break;
|
|
case PAL_MODE_UNCONNECTED:
|
|
port->FIO_PIN |= mask;
|
|
case PAL_MODE_OUTPUT_PUSHPULL:
|
|
port->FIO_DIR |= mask;
|
|
break;
|
|
}
|
|
}
|
|
|
|
#endif /* HAL_USE_PAL */
|
|
|
|
/** @} */
|