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/*
ChibiOS - Copyright (C) 2006..2018 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 GPIOv1/hal_pal_lld.c
* @brief AVR Tiny GPIO low level driver source file.
*
* @addtogroup PAL
* @{
*/
#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 AVR GPIO ports configuration.
* @details GPIO registers initialization.
*
* @param[in] config the AVR ports configuration
*
* @notapi
*/
void _pal_lld_init(const PALConfig *config) {
#if defined(PORTA) || defined(__DOXYGEN__)
PORTA = config->porta.out;
DDRA = config->porta.dir;
#endif
#if defined(PORTB) || defined(__DOXYGEN__)
PORTB = config->portb.out;
DDRB = config->portb.dir;
#endif
#if defined(PORTC) || defined(__DOXYGEN__)
PORTC = config->portc.out;
DDRC = config->portc.dir;
#endif
#if defined(PORTD) || defined(__DOXYGEN__)
PORTD = config->portd.out;
DDRD = config->portd.dir;
#endif
#if defined(PORTE) || defined(__DOXYGEN__)
PORTE = config->porte.out;
DDRE = config->porte.dir;
#endif
#if defined(PORTF) || defined(__DOXYGEN__)
PORTF = config->portf.out;
DDRF = config->portf.dir;
#endif
#if defined(PORTG) || defined(__DOXYGEN__)
PORTG = config->portg.out;
DDRG = config->portg.dir;
#endif
#if defined(PORTH) || defined(__DOXYGEN__)
PORTH = config->porth.out;
DDRH = config->porth.dir;
#endif
#if defined(PORTJ) || defined(__DOXYGEN__)
PORTJ = config->portj.out;
DDRJ = config->portj.dir;
#endif
#if defined(PORTK) || defined(__DOXYGEN__)
PORTK = config->portk.out;
DDRK = config->portk.dir;
#endif
#if defined(PORTL) || defined(__DOXYGEN__)
PORTL = config->portl.out;
DDRL = config->portl.dir;
#endif
}
/**
* @brief Pads mode setup.
* @details This function programs a pads group belonging to the same port
* with the specified mode.
*
* @param[in] port the port identifier
* @param[in] mask the group mask
* @param[in] mode the mode
*
* @note This function is not meant to be invoked directly by the application
* code.
* @note @p PAL_MODE_UNCONNECTED is implemented as output as recommended by
* the AVR Family User's Guide. Unconnected pads are set to input
* with pull-up by default.
*
* @notapi
*/
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
iomode_t mode) {
switch (mode) {
case PAL_MODE_RESET:
case PAL_MODE_INPUT:
case PAL_MODE_INPUT_ANALOG:
port->dir &= ~mask;
port->out &= ~mask;
break;
case PAL_MODE_UNCONNECTED:
case PAL_MODE_INPUT_PULLUP:
port->dir &= ~mask;
port->out |= mask;
break;
case PAL_MODE_OUTPUT_PUSHPULL:
port->dir |= mask;
break;
}
}
/**
* @brief Pad event enable.
* @details This function programs an event callback in the specified mode.
* @note Programming an unknown or unsupported mode is silently ignored.
*
* @param[in] port port identifier
* @param[in] pad pad number within the port
* @param[in] mode pad event mode
* @param[in] callback event callback function
* @param[in] arg callback argument
*
* @notapi
*/
void _pal_lld_enablepadevent(ioportid_t port,
iopadid_t pad,
ioeventmode_t mode,
palcallback_t callback,
void *arg) {
(void)port;
(void)pad;
(void)mode;
(void)callback;
(void)arg;
/* TODO: Implement the interruption here. */
/*
#if (port == IOPORT4)
#elif (port == IOPORT5)
#else
#error The selected port dont have an EXT INTx pin.
*/
//}
}
/**
* @brief Make a line identifier with a given port and pad identifiers.
*
* @param[in] port the port identifier
* @param[in] pad the pad identifier
*
* @return line the builded line
*
* @notapi
*/
ioline_t _pal_lld_setlineid(ioportid_t port, uint8_t pad) {
ioline_t line;
line.port = port;
line.pad = pad;
return line;
}
/**
* @brief Get a port identifier from a line identifier.
*
* @param[in] line the line identifier
*
* @return port the port of the corresponding line
*
* @notapi
*/
ioportid_t _pal_lld_getportfromline(ioline_t line) {
return line.port;
}
/**
* @brief Get a pad identifier from a line identifier.
*
* @param[in] line the line identifier
*
* @return pad the pad of the corresponding line
*
* @notapi
*/
uint8_t _pal_lld_getpadfromline(ioline_t line) {
return line.pad;
}
#endif /* HAL_USE_PAL */
/** @} */
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