git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1849 35acf78f-673a-0410-8e92-d51de3d6d3f4

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diff --git a/os/hal/platforms/LPC13xx/pal_lld.h b/os/hal/platforms/LPC13xx/pal_lld.h
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+/*

+    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 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    LPC13xx/pal_lld.h

+ * @brief   LPC13xx GPIO low level driver header.

+ *

+ * @addtogroup LPC13xx_PAL

+ * @{

+ */

+

+#ifndef _PAL_LLD_H_

+#define _PAL_LLD_H_

+

+#if CH_HAL_USE_PAL || defined(__DOXYGEN__)

+

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

+/* 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 GPIO port setup info.

+ */

+typedef struct {

+  /** Initial value for FIO_PIN register.*/

+  uint32_t      data;

+  /** Initial value for FIO_DIR register.*/

+  uint32_t      dir;

+} LPC13xx_gpio_setup_t;

+

+/**

+ * @brief   GPIO 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.

+ * @note    The @p IOCON block is not configured, initially all pins have

+ *          enabled pullups and are programmed as GPIO. It is responsibility

+ *          of the various drivers to reprogram the pins in the proper mode.

+ *          Pins that are not handled by any driver may be programmed in

+ *          @p board.c.

+ */

+typedef struct {

+  /** @brief GPIO 0 setup data.*/

+  LPC13xx_gpio_setup_t   P0;

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

+  LPC13xx_gpio_setup_t   P1;

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

+  LPC13xx_gpio_setup_t   P2;

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

+  LPC13xx_gpio_setup_t   P3;

+} PALConfig;

+

+/**

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

+ */

+#define PAL_IOPORTS_WIDTH 32

+

+/**

+ * @brief   Whole port mask.

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

+ */

+#define PAL_WHOLE_PORT ((ioportmask_t)0xFFFFFFFF)

+

+/**

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

+ */

+typedef uint32_t ioportmask_t;

+

+/**

+ * @brief   Port Identifier.

+ */

+typedef LPC_GPIO_TypeDef *ioportid_t;

+

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

+/* I/O Ports Identifiers.                                                    */

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

+

+/**

+ * @brief   GPIO0 port identifier.

+ */

+#define IOPORT1         LPC_GPIO0

+#define GPIO0           LPC_GPIO0

+

+/**

+ * @brief   GPIO1 port identifier.

+ */

+#define IOPORT2         LPC_GPIO1

+#define GPIO1           LPC_GPIO1

+

+/**

+ * @brief   GPIO2 port identifier.

+ */

+#define IOPORT3         LPC_GPIO2

+#define GPIO2           LPC_GPIO2

+

+/**

+ * @brief   GPIO3 port identifier.

+ */

+#define IOPORT4         LPC_GPIO3

+#define GPIO3           LPC_GPIO3

+

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

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

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

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

+

+/**

+ * @brief   Low level PAL subsystem initialization.

+ *

+ * @param[in] config    architecture-dependent ports configuration

+ */

+#define pal_lld_init(config) _pal_lld_init(config)

+

+/**

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

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

+ *          application code.

+ *

+ * @param[in] port      port identifier

+ * @return              The port bits.

+ */

+#define pal_lld_readport(port) ((port)->DATA)

+

+/**

+ * @brief   Reads the output latch.

+ * @details The purpose of this function is to read back the latched output

+ *          value.

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

+ *          application code.

+ *

+ * @param[in] port      port identifier

+ * @return              The latched logical states.

+ */

+#define pal_lld_readlatch(port) ((port)->DATA)

+

+/**

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

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

+ *          application code.

+ *

+ * @param[in] port      port identifier

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

+ */

+#define pal_lld_writeport(port, bits) ((port)->DATA = (bits))

+

+/**

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

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

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

+ */

+#define pal_lld_setport(port, bits) ((port)->MASKED_ACCESS[bits] = 0xFFFFFFFF)

+

+/**

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

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

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

+ */

+#define pal_lld_clearport(port, bits) ((port)->MASKED_ACCESS[bits] = 0)

+

+/**

+ * @brief   Reads a group of bits.

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

+ * @param[in] mask      group mask

+ * @param[in] offset    group bit offset within the port

+ * @return              The group logical states.

+ */

+#define pal_lld_readgroup(port, mask, offset)                               \

+  ((port)->MASKED_ACCESS[(mask) << (offset)])

+

+/**

+ * @brief   Writes a group of bits.

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

+ * @param[in] mask      group mask

+ * @param[in] offset    group bit offset within the port

+ * @param[in] bits      bits to be written. Values exceeding the group width

+ *                      are masked.

+ */

+#define pal_lld_writegroup(port, mask, offset, bits)                        \

+  ((port)->MASKED_ACCESS[(mask) << (offset)] = (bits))

+

+/**

+ * @brief   Pads group mode setup.

+ * @details This function programs a pads group belonging to the same port

+ *          with the specified mode.

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

+ *          application code.

+ * @note    Programming an unknown or unsupported mode is silently ignored.

+ *

+ * @param[in] port      port identifier

+ * @param[in] mask      group mask

+ * @param[in] mode      group mode

+ */

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

+  _pal_lld_setgroupmode(port, mask, mode)

+

+/**

+ * @brief   Writes a logical state on an output pad.

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

+ *          application  code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

+ * @param[in] pad       pad number within the port

+ * @param[out] bit      logical value, the value must be @p PAL_LOW or

+ *                      @p PAL_HIGH

+ */

+#define pal_lld_writepad(port, pad, bit)                                    \

+  ((port)->MASKED_ACCESS[(mask) << (pad)] = (bit) << (pad))

+

+/**

+ * @brief   Sets a pad logical state to @p PAL_HIGH.

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

+ * @param[in] pad       pad number within the port

+ */

+#define pal_lld_setpad(port, pad)                                           \

+  ((port)->MASKED_ACCESS[1 << (pad)] = 1 << (pad))

+

+/**

+ * @brief   Clears a pad logical state to @p PAL_LOW.

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

+ *          application code.

+ * @note    The @ref PAL provides a default software implementation of this

+ *          functionality, implement this function if can optimize it by using

+ *          special hardware functionalities or special coding.

+ *

+ * @param[in] port      port identifier

+ * @param[in] pad       pad number within the port

+ */

+#define pal_lld_clearpad(port, pad)                                         \

+  ((port)->MASKED_ACCESS[1 << (pad)] = 0)

+

+#if !defined(__DOXYGEN__)

+extern const PALConfig pal_default_config;

+#endif

+

+#ifdef __cplusplus

+extern "C" {

+#endif

+  void _pal_lld_init(const PALConfig *config);

+  void _pal_lld_setgroupmode(ioportid_t port,

+                             ioportmask_t mask,

+                             uint_fast8_t mode);

+#ifdef __cplusplus

+}

+#endif

+

+#endif /* CH_HAL_USE_PAL */

+

+#endif /* _PAL_LLD_H_ */

+

+/** @} */