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| author | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-08 20:17:13 +0000 |
|---|---|---|
| committer | barthess <barthess@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2011-12-08 20:17:13 +0000 |
| commit | 4ca9e4ad312453e11c17746aaa01b4fb637eb83a (patch) | |
| tree | b8ad2a8049314384e30f414b146ee4a875fbc953 /os/hal/src/ext.c | |
| parent | 8a3ce5e27333e4dc6bd8047c440b84f3060d7d0e (diff) | |
| parent | 8196de6aef7616f7df96d757dddc9cfa9eb661dc (diff) | |
| download | ChibiOS-4ca9e4ad312453e11c17746aaa01b4fb637eb83a.tar.gz ChibiOS-4ca9e4ad312453e11c17746aaa01b4fb637eb83a.tar.bz2 ChibiOS-4ca9e4ad312453e11c17746aaa01b4fb637eb83a.zip | |
RTC for F4x branch.
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/branches/rtc_dev@3585 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/src/ext.c')
| -rw-r--r-- | os/hal/src/ext.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/os/hal/src/ext.c b/os/hal/src/ext.c new file mode 100644 index 000000000..1c83cd2e6 --- /dev/null +++ b/os/hal/src/ext.c @@ -0,0 +1,167 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
+ 2011 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 ext.c
+ * @brief EXT Driver code.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief EXT Driver initialization.
+ * @note This function is implicitly invoked by @p halInit(), there is
+ * no need to explicitly initialize the driver.
+ *
+ * @init
+ */
+void extInit(void) {
+
+ ext_lld_init();
+}
+
+/**
+ * @brief Initializes the standard part of a @p EXTDriver structure.
+ *
+ * @param[out] extp pointer to the @p EXTDriver object
+ *
+ * @init
+ */
+void extObjectInit(EXTDriver *extp) {
+
+ extp->state = EXT_STOP;
+ extp->config = NULL;
+}
+
+/**
+ * @brief Configures and activates the EXT peripheral.
+ * @post After activation all EXT channels are in the disabled state,
+ * use @p extChannelEnable() in order to activate them.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] config pointer to the @p EXTConfig object
+ *
+ * @api
+ */
+void extStart(EXTDriver *extp, const EXTConfig *config) {
+
+ chDbgCheck((extp != NULL) && (config != NULL), "extStart");
+
+ chSysLock();
+ chDbgAssert((extp->state == EXT_STOP) || (extp->state == EXT_ACTIVE),
+ "extStart(), #1", "invalid state");
+ extp->config = config;
+ ext_lld_start(extp);
+ extp->state = EXT_ACTIVE;
+ chSysUnlock();
+}
+
+/**
+ * @brief Deactivates the EXT peripheral.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ *
+ * @api
+ */
+void extStop(EXTDriver *extp) {
+
+ chDbgCheck(extp != NULL, "extStop");
+
+ chSysLock();
+ chDbgAssert((extp->state == EXT_STOP) || (extp->state == EXT_ACTIVE),
+ "extStop(), #1", "invalid state");
+ ext_lld_stop(extp);
+ extp->state = EXT_STOP;
+ chSysUnlock();
+}
+
+/**
+ * @brief Enables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be enabled
+ *
+ * @api
+ */
+void extChannelEnable(EXTDriver *extp, expchannel_t channel) {
+
+ chDbgCheck((extp != NULL) &&
+ (channel < EXT_MAX_CHANNELS) &&
+ (extp->config->channels[channel].mode != EXT_CH_MODE_DISABLED),
+ "extChannelEnable");
+
+ chSysLock();
+ chDbgAssert(extp->state == EXT_ACTIVE,
+ "extChannelEnable(), #1", "invalid state");
+ extChannelEnableI(extp, channel);
+ chSysUnlock();
+}
+
+/**
+ * @brief Disables an EXT channel.
+ *
+ * @param[in] extp pointer to the @p EXTDriver object
+ * @param[in] channel channel to be disabled
+ *
+ * @api
+ */
+void extChannelDisable(EXTDriver *extp, expchannel_t channel) {
+
+ chDbgCheck((extp != NULL) &&
+ (channel < EXT_MAX_CHANNELS) &&
+ (extp->config->channels[channel].mode != EXT_CH_MODE_DISABLED),
+ "extChannelDisable");
+
+ chSysLock();
+ chDbgAssert(extp->state == EXT_ACTIVE,
+ "extChannelDisable(), #1", "invalid state");
+ extChannelDisableI(extp, channel);
+ chSysUnlock();
+}
+
+#endif /* HAL_USE_EXT */
+
+/** @} */
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