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/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file MSP430/pal_lld.c
* @brief MSP430 Digital I/O low level driver code
* @addtogroup MSP430_PAL
* @{
*/
#include <ch.h>
#include <pal.h>
/**
* @brief MSP430 I/O ports configuration.
*
* @param[in] config the MSP430 ports configuration
*
* @note The @p PxIFG, @p PxIE and @p PxSEL registers are cleared. @p PxOUT
* and @p PxDIR are configured as specified.
*/
void _pal_lld_init(const MSP430DIOConfig *config) {
#if defined(__MSP430_HAS_PORT1__) || defined(__MSP430_HAS_PORT1_R__)
IOPORT1->iop_full.ie.reg_p = 0;
IOPORT1->iop_full.ifg.reg_p = 0;
IOPORT1->iop_full.sel.reg_p = 0;
IOPORT1->iop_common.out = config->P1Data.out;
IOPORT1->iop_common.dir = config->P1Data.dir;
#endif
#if defined(__MSP430_HAS_PORT2__) || defined(__MSP430_HAS_PORT2_R__)
IOPORT2->iop_full.ie.reg_p = 0;
IOPORT2->iop_full.ifg.reg_p = 0;
IOPORT2->iop_full.sel.reg_p = 0;
IOPORT2->iop_common.out = config->P2Data.out;
IOPORT2->iop_common.dir = config->P2Data.dir;
#endif
#if defined(__MSP430_HAS_PORT3__) || defined(__MSP430_HAS_PORT3_R__)
IOPORT3->iop_simple.sel.reg_p = 0;
IOPORT3->iop_common.out = config->P3Data.out;
IOPORT3->iop_common.dir = config->P3Data.dir;
#endif
#if defined(__MSP430_HAS_PORT4__) || defined(__MSP430_HAS_PORT4_R__)
IOPORT4->iop_simple.sel.reg_p = 0;
IOPORT4->iop_common.out = config->P4Data.out;
IOPORT4->iop_common.dir = config->P4Data.dir;
#endif
#if defined(__MSP430_HAS_PORT5__) || defined(__MSP430_HAS_PORT5_R__)
IOPORT5->iop_simple.sel.reg_p = 0;
IOPORT5->iop_common.out = config->P5Data.out;
IOPORT5->iop_common.dir = config->P5Data.dir;
#endif
#if defined(__MSP430_HAS_PORT6__) || defined(__MSP430_HAS_PORT6_R__)
IOPORT6->iop_simple.sel.reg_p = 0;
IOPORT6->iop_common.out = config->P6Data.out;
IOPORT6->iop_common.dir = config->P6Data.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 MSP430x1xx Family User's Guide. Unconnected pads are set to
* high logic state by default.
* @note This function does not alter the @p PxSEL registers. Alternate
* functions setup must be handled by device-specific code.
*/
void _pal_lld_setgroupmode(ioportid_t port,
ioportmask_t mask,
uint_fast8_t mode) {
switch (mode) {
case PAL_MODE_RESET:
case PAL_MODE_INPUT:
port->iop_common.dir.reg_p &= ~mask;
break;
case PAL_MODE_UNCONNECTED:
port->iop_common.out.reg_p |= mask;
case PAL_MODE_OUTPUT_PUSHPULL:
port->iop_common.dir.reg_p |= mask;
break;
}
}
/** @} */
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