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| author | theShed <theShed@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-03-15 21:57:43 +0000 |
|---|---|---|
| committer | theShed <theShed@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2013-03-15 21:57:43 +0000 |
| commit | f0b4615ece04a96c3b0e8ee23af775abacbc875b (patch) | |
| tree | 4e148ee17b19e417eeab89c6dc7a869130a71b2e /os/hal/platforms/LPC8xx/ext_lld.h | |
| parent | b3b08c8230666b29f814be862ffc94c28a61bd53 (diff) | |
| download | ChibiOS-f0b4615ece04a96c3b0e8ee23af775abacbc875b.tar.gz ChibiOS-f0b4615ece04a96c3b0e8ee23af775abacbc875b.tar.bz2 ChibiOS-f0b4615ece04a96c3b0e8ee23af775abacbc875b.zip | |
LPC8xx EXT driver
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@5436 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/platforms/LPC8xx/ext_lld.h')
| -rw-r--r-- | os/hal/platforms/LPC8xx/ext_lld.h | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/os/hal/platforms/LPC8xx/ext_lld.h b/os/hal/platforms/LPC8xx/ext_lld.h new file mode 100644 index 000000000..25cf0b123 --- /dev/null +++ b/os/hal/platforms/LPC8xx/ext_lld.h @@ -0,0 +1,156 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011,2012,2013 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 LPC8xx/ext_lld.h
+ * @brief LPC8xx EXT subsystem low level driver header.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef _EXT_LLD_H_
+#define _EXT_LLD_H_
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/**
+ * @brief Available number of EXT channels.
+ */
+#define EXT_MAX_CHANNELS 8
+
+/**
+ * @brief Mask of the available channels.
+ */
+#define EXT_CHANNELS_MASK ((1 << EXT_MAX_CHANNELS) - 1)
+
+/** @} */
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief EXT channel identifier.
+ */
+typedef uint32_t expchannel_t;
+
+/**
+
+ * @brief EXT channel callback reason.
+ */
+typedef uint32_t expreason_t;
+
+/**
+ * @brief Type of an EXT generic notification callback.
+ *
+ * @param[in] extp pointer to the @p EXPDriver object triggering the
+ * callback
+ */
+typedef void (*extcallback_t)(EXTDriver *extp,
+ expchannel_t channel,
+ expreason_t reason);
+
+/**
+ * @brief Channel configuration structure.
+ */
+typedef struct {
+ /**
+ * @brief Channel mode.
+ */
+ uint8_t mode;
+ /**
+ * @brief IO Pin.
+ */
+ uint8_t iopin;
+ /**
+ * @brief Channel callback.
+ */
+ extcallback_t cb;
+} EXTChannelConfig;
+
+/**
+ * @brief Driver configuration structure.
+ * @note It could be empty on some architectures.
+ */
+typedef struct {
+ /**
+ * @brief Channel configurations.
+ */
+ EXTChannelConfig channels[EXT_MAX_CHANNELS];
+ /* End of the mandatory fields.*/
+} EXTConfig;
+
+/**
+ * @brief Structure representing an EXT driver.
+ */
+struct EXTDriver {
+ /**
+ * @brief Driver state.
+ */
+ extstate_t state;
+ /**
+ * @brief Current configuration data.
+ */
+ const EXTConfig *config;
+ /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if !defined(__DOXYGEN__)
+extern EXTDriver EXTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void ext_lld_init(void);
+ void ext_lld_start(EXTDriver *extp);
+ void ext_lld_stop(EXTDriver *extp);
+ void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
+ void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* _EXT_LLD_H_ */
+
+/** @} */
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