git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1351 35acf78f-673a-0410-8e92-d51de3d6d3f4

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diff --git a/os/hal/platforms/MSP430/pal_lld.h b/os/hal/platforms/MSP430/pal_lld.h
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+++ b/os/hal/platforms/MSP430/pal_lld.h
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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.h

+ * @brief MSP430 Digital I/O low level driver header

+ * @addtogroup MSP430_PAL

+ * @{

+ */

+

+#ifndef _PAL_LLD_H_

+#define _PAL_LLD_H_

+

+#include <msp430x16x.h>

+

+/*===========================================================================*/

+/* Unsupported modes and specific modes                                      */

+/*===========================================================================*/

+

+#undef PAL_MODE_INPUT_PULLUP

+#undef PAL_MODE_INPUT_PULLDOWN

+#undef PAL_MODE_INPUT_ANALOG

+#undef PAL_MODE_OUTPUT_OPENDRAIN

+

+/*===========================================================================*/

+/* I/O Ports Types and constants.                                            */

+/*===========================================================================*/

+

+/**

+ * @brief Simplified MSP430 I/O port representation.

+ * @details This structure represents the common part of all the MSP430 I/O

+ *          ports.
+ */

+struct port_common_t {

+  ioregister_t  in;

+  ioregister_t  out;

+  ioregister_t  dir;

+};

+

+/**

+ * @brief Generic MSP430 I/O port.
+ */

+union __ioport {

+  struct port_common_t iop_common;

+  struct port_simple_t iop_simple;

+  struct port_full_t iop_full;

+};

+

+/**

+ * @brief Setup registers common to all the MSP430 ports.
+ */

+typedef struct  {

+  ioregister_t  out;

+  ioregister_t  dir;

+} msp430_dio_setup_t;

+

+/**

+ * @brief MSP430 I/O ports static initializer.

+ * @details An instance of this structure must be passed to @p palInit() at

+ *          system startup time in order to initialized the digital I/O

+ *          subsystem. This represents only the initial setup, specific pads

+ *          or whole ports can be reprogrammed at later time.
+ */

+typedef struct {

+#if defined(__MSP430_HAS_PORT1__) ||                                    \

+    defined(__MSP430_HAS_PORT1_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 1 setup data.*/

+  msp430_dio_setup_t    P1Data;

+#endif

+#if defined(__MSP430_HAS_PORT2__) ||                                    \

+    defined(__MSP430_HAS_PORT2_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 2 setup data.*/

+  msp430_dio_setup_t    P2Data;

+#endif

+#if defined(__MSP430_HAS_PORT3__) ||                                    \

+    defined(__MSP430_HAS_PORT3_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 3 setup data.*/

+  msp430_dio_setup_t    P3Data;

+#endif

+#if defined(__MSP430_HAS_PORT4__) ||                                    \

+    defined(__MSP430_HAS_PORT4_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 4 setup data.*/

+  msp430_dio_setup_t    P4Data;

+#endif

+#if defined(__MSP430_HAS_PORT5__) ||                                    \

+    defined(__MSP430_HAS_PORT5_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 5 setup data.*/

+  msp430_dio_setup_t    P5Data;

+#endif

+#if defined(__MSP430_HAS_PORT6__) ||                                    \

+    defined(__MSP430_HAS_PORT6_R__) ||                                  \

+    defined(__DOXYGEN__)

+  /** @brief Port 6 setup data.*/

+  msp430_dio_setup_t    P6Data;

+#endif

+} MSP430DIOConfig;

+

+/**

+ * @brief Width, in bits, of an I/O port.
+ */

+#define PAL_IOPORTS_WIDTH 8

+

+/**

+ * @brief Whole port mask.

+ * @brief This macro specifies all the valid bits into a port.

+ */

+#define PAL_WHOLE_PORT ((ioportmask_t)0xFF)

+

+/**

+ * @brief Digital I/O port sized unsigned type.
+ */

+typedef uint8_t ioportmask_t;

+

+/**

+ * @brief Port Identifier.

+ * @details This type can be a scalar or some kind of pointer, do not make

+ *          any assumption about it, use the provided macros when populating

+ *          variables of this type.
+ */

+typedef union __ioport * ioportid_t;

+

+/*===========================================================================*/

+/* I/O Ports Identifiers.                                                    */

+/*===========================================================================*/

+

+/**

+ * @brief I/O port A identifier.

+ * @details This port identifier is mapped on the MSP430 port 1 (P1).

+ */

+#if defined(__MSP430_HAS_PORT1__) ||                                    \

+    defined(__MSP430_HAS_PORT1_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT1         ((ioportid_t)0x0020)

+#endif

+

+/**

+ * @brief I/O port B identifier.

+ * @details This port identifier is mapped on the MSP430 port 2 (P2).

+ */

+#if defined(__MSP430_HAS_PORT2__) ||                                    \

+    defined(__MSP430_HAS_PORT2_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT2         ((ioportid_t)0x0028)

+#endif

+

+/**

+ * @brief I/O port C identifier.

+ * @details This port identifier is mapped on the MSP430 port 3 (P3).

+ */

+#if defined(__MSP430_HAS_PORT3__) ||                                    \

+    defined(__MSP430_HAS_PORT3_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT3         ((ioportid_t)0x0018)

+#endif

+

+/**

+ * @brief I/O port D identifier.

+ * @details This port identifier is mapped on the MSP430 port 4 (P4).

+ */

+#if defined(__MSP430_HAS_PORT4__) ||                                    \

+    defined(__MSP430_HAS_PORT4_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT4         ((ioportid_t)0x001c)

+#endif

+

+/**

+ * @brief I/O port E identifier.

+ * @details This port identifier is mapped on the MSP430 port 5 (P5).

+ */

+#if defined(__MSP430_HAS_PORT5__) ||                                    \

+    defined(__MSP430_HAS_PORT5_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT5         ((ioportid_t)0x0030)

+#endif

+

+/**

+ * @brief I/O port F identifier.

+ * @details This port identifier is mapped on the MSP430 port 6 (P6).

+ */

+#if defined(__MSP430_HAS_PORT6__) ||                                    \

+    defined(__MSP430_HAS_PORT6_R__) ||                                  \

+    defined(__DOXYGEN__)

+#define IOPORT6         ((ioportid_t)0x0034)

+#endif

+

+/*===========================================================================*/

+/* Implementation, some of the following macros could be implemented as      */

+/* functions, if so please put them in a file named pal_lld.c.               */

+/*===========================================================================*/

+

+/**

+ * @brief Low level PAL subsystem initialization.

+ * @details In MSP430 programs all the ports as input.

+ *

+ * @param[in] config the MSP430 ports configuration

+ */

+#define pal_lld_init(config) _pal_lld_init(config)

+

+/**

+ * @brief Reads the physical I/O port states.

+ * @details This function is implemented by reading the PxIN register, the

+ *          implementation has no side effects.

+ *

+ * @param[in] port the port identifier

+ * @return The port bits.

+ *

+ * @note This function is not meant to be invoked directly by the application

+ *       code.

+ */

+#define pal_lld_readport(port) ((port)->iop_common.in.reg_p)

+

+/**

+ * @brief Reads the output latch.

+ * @details This function is implemented by reading the PxOUT register, the

+ *          implementation has no side effects.

+ *

+ * @param[in] port the port identifier

+ * @return The latched logical states.

+ *

+ * @note This function is not meant to be invoked directly by the application

+ *       code.

+ */

+#define pal_lld_readlatch(port) ((port)->iop_common.out.reg_p)

+

+/**

+ * @brief Writes a bits mask on a I/O port.

+ * @details This function is implemented by writing the PxOUT register, the

+ *          implementation has no side effects.

+ *

+ * @param[in] port the port identifier

+ * @param[in] bits the bits to be written on the specified port

+ *

+ * @note This function is not meant to be invoked directly by the application

+ *       code.

+ */

+#define pal_lld_writeport(port, bits) {                                 \

+  (port)->iop_common.out.reg_p = (bits);                                \

+}

+

+/**

+ * @brief Pads group 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.

+ * @note This function does not alter the @p PxSEL registers. Alternate

+ *       functions setup must be handled by device-specific code.

+ */

+#define pal_lld_setgroupmode(port, mask, mode) \

+  _pal_lld_setgroupmode(port, mask, mode)

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void _pal_lld_init(const MSP430DIOConfig *config);

+  void _pal_lld_setgroupmode(ioportid_t port,

+                             ioportmask_t mask,

+                             uint_fast8_t mode);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* _PAL_LLD_H_ */

+

+/** @} */