git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1149 35acf78f-673a-0410-8e92-d51de3d6d3f4

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diff --git a/src/lib/pal.c b/src/lib/pal.c
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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 pal.c

- * @brief I/O Ports Abstraction Layer code

- * @addtogroup PAL

- * @{

- */

-

-#include <ch.h>

-#include <pal.h>

-

-/**

- * @brief Read from an I/O bus.

- *

- * @param[in] bus the I/O bus, pointer to a @p IOBus structure

- * @return The bus logical states.

- *

- * @note The operation is not guaranteed to be atomic on all the architectures,

- *       for atomicity and/or portability reasons you may need to enclose port

- *       I/O operations between @p chSysLock() and @p chSysUnlock().

- * @note The function internally uses the @p palReadGroup() macro. The use of

- *       this function is preferred when you value code size, readability  and

- *       error checking over speed.

- */

-ioportmask_t palReadBus(IOBus *bus) {

-

-  chDbgCheck((bus != NULL) &&

-             (bus->bus_offset > PAL_IOPORTS_WIDTH), "palReadBus");

-

-  return palReadGroup(bus->bus_portid, bus->bus_mask, bus->bus_offset);

-}

-

-/**

- * @brief Write to an I/O bus.

- *

- * @param[in] bus the I/O bus, pointer to a @p IOBus structure

- * @param[in] bits the bits to be written on the I/O bus. Values exceeding

- *            the bus width are masked so most significant bits are lost.

- *

- * @note The operation is not guaranteed to be atomic on all the architectures,

- *       for atomicity and/or portability reasons you may need to enclose port

- *       I/O operations between @p chSysLock() and @p chSysUnlock().

- * @note The default implementation is non atomic and not necessarily

- *       optimal. Low level drivers may  optimize the function by using

- *       specific hardware or coding.

- */

-void palWriteBus(IOBus *bus, ioportmask_t bits) {

-

-  chDbgCheck((bus != NULL) &&

-             (bus->bus_offset > PAL_IOPORTS_WIDTH), "palWriteBus");

-

-  palWriteGroup(bus->bus_portid, bus->bus_mask, bus->bus_offset, bits);

-}

-

-/**

- * @brief Programs a bus with the specified mode.

- *
- * @param[in] bus the I/O bus, pointer to a @p IOBus structure

- * @param[in] mode the mode

- *

- * @note The operation is not guaranteed to be atomic on all the architectures,

- *       for atomicity and/or portability reasons you may need to enclose port

- *       I/O operations between @p chSysLock() and @p chSysUnlock().

- * @note The default implementation is non atomic and not necessarily

- *       optimal. Low level drivers may  optimize the function by using

- *       specific hardware or coding.

- */

-void palSetBusMode(IOBus *bus, uint_fast8_t mode) {

-

-  chDbgCheck((bus != NULL) &&

-             (bus->bus_offset > PAL_IOPORTS_WIDTH), "palSetBusMode");

-

-  palSetGroupMode(bus->bus_portid, bus->bus_mask, mode);

-}

-

-/** @} */