142 lines
4.9 KiB
C
142 lines
4.9 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011,2012 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file MSP430/pal_lld.c
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* @brief MSP430 Digital I/O low level driver code.
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*
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* @addtogroup PAL
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#if HAL_USE_PAL || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver exported variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local variables. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver local functions. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver interrupt handlers. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver exported functions. */
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/*===========================================================================*/
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/**
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* @brief MSP430 I/O ports configuration.
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* @note The @p PxIFG, @p PxIE and @p PxSEL registers are cleared. @p PxOUT
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* and @p PxDIR are configured as specified.
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*
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* @param[in] config the MSP430 ports configuration
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*
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* @notapi
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*/
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void _pal_lld_init(const PALConfig *config) {
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#if defined(__MSP430_HAS_PORT1__) || defined(__MSP430_HAS_PORT1_R__)
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IOPORT1->iop_full.ie = 0;
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IOPORT1->iop_full.ifg = 0;
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IOPORT1->iop_full.sel = 0;
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IOPORT1->iop_common.out = config->P1Data.out;
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IOPORT1->iop_common.dir = config->P1Data.dir;
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#endif
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#if defined(__MSP430_HAS_PORT2__) || defined(__MSP430_HAS_PORT2_R__)
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IOPORT2->iop_full.ie = 0;
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IOPORT2->iop_full.ifg = 0;
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IOPORT2->iop_full.sel = 0;
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IOPORT2->iop_common.out = config->P2Data.out;
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IOPORT2->iop_common.dir = config->P2Data.dir;
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#endif
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#if defined(__MSP430_HAS_PORT3__) || defined(__MSP430_HAS_PORT3_R__)
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IOPORT3->iop_simple.sel = 0;
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IOPORT3->iop_common.out = config->P3Data.out;
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IOPORT3->iop_common.dir = config->P3Data.dir;
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#endif
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#if defined(__MSP430_HAS_PORT4__) || defined(__MSP430_HAS_PORT4_R__)
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IOPORT4->iop_simple.sel = 0;
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IOPORT4->iop_common.out = config->P4Data.out;
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IOPORT4->iop_common.dir = config->P4Data.dir;
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#endif
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#if defined(__MSP430_HAS_PORT5__) || defined(__MSP430_HAS_PORT5_R__)
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IOPORT5->iop_simple.sel = 0;
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IOPORT5->iop_common.out = config->P5Data.out;
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IOPORT5->iop_common.dir = config->P5Data.dir;
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#endif
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#if defined(__MSP430_HAS_PORT6__) || defined(__MSP430_HAS_PORT6_R__)
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IOPORT6->iop_simple.sel = 0;
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IOPORT6->iop_common.out = config->P6Data.out;
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IOPORT6->iop_common.dir = config->P6Data.dir;
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#endif
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}
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/**
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* @brief Pads mode setup.
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* @details This function programs a pads group belonging to the same port
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* with the specified mode.
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* @note @p PAL_MODE_UNCONNECTED is implemented as output as recommended by
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* the MSP430x1xx Family User's Guide. Unconnected pads are set to
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* high logic state by default.
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* @note This function does not alter the @p PxSEL registers. Alternate
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* functions setup must be handled by device-specific code.
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*
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* @param[in] port the port identifier
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* @param[in] mask the group mask
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* @param[in] mode the mode
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*
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* @notapi
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*/
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void _pal_lld_setgroupmode(ioportid_t port,
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ioportmask_t mask,
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iomode_t mode) {
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switch (mode) {
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case PAL_MODE_RESET:
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case PAL_MODE_INPUT:
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port->iop_common.dir &= ~mask;
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break;
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case PAL_MODE_UNCONNECTED:
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port->iop_common.out |= mask;
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case PAL_MODE_OUTPUT_PUSHPULL:
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port->iop_common.dir |= mask;
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break;
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}
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}
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#endif /* HAL_USE_PAL */
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/** @} */
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