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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-11-17 13:57:15 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2010-11-17 13:57:15 +0000 |
| commit | 5f707f937719d7642952404f435a2eb5e7485eb0 (patch) | |
| tree | 0e9c3fdb94cb3a81407402542ebf7d5069a891f8 /os/hal/platforms/STM8S/pal_lld.c | |
| parent | 605283dd163861b9ecc0a02f235007214c0c8064 (diff) | |
| download | ChibiOS-5f707f937719d7642952404f435a2eb5e7485eb0.tar.gz ChibiOS-5f707f937719d7642952404f435a2eb5e7485eb0.tar.bz2 ChibiOS-5f707f937719d7642952404f435a2eb5e7485eb0.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@2380 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/platforms/STM8S/pal_lld.c')
| -rw-r--r-- | os/hal/platforms/STM8S/pal_lld.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/os/hal/platforms/STM8S/pal_lld.c b/os/hal/platforms/STM8S/pal_lld.c new file mode 100644 index 000000000..3296022e7 --- /dev/null +++ b/os/hal/platforms/STM8S/pal_lld.c @@ -0,0 +1,110 @@ +/*
+ 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 STM8/pal_lld.c
+ * @brief STM8 GPIO low level driver code.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief Pads 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 @p PAL_MODE_UNCONNECTED is implemented as push pull output at 2MHz.
+ *
+ * @param[in] port the port identifier
+ * @param[in] mask the group mask
+ * @param[in] mode the mode
+ *
+ * @notapi
+ */
+void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ uint_fast8_t mode) {
+
+ switch (mode & PAL_MODE_MASK) {
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT_PULLUP:
+ port->DDR &= ~mask;
+ port->CR1 |= mask;
+ port->CR2 &= ~mask;
+ break;
+ case PAL_MODE_INPUT:
+ case PAL_MODE_INPUT_ANALOG:
+ port->DDR &= ~mask;
+ port->CR1 &= ~mask;
+ port->CR2 &= ~mask;
+ break;
+ case PAL_MODE_UNCONNECTED:
+ case PAL_MODE_OUTPUT_PUSHPULL_SLOW:
+ port->DDR |= mask;
+ port->CR1 |= mask;
+ port->CR2 &= ~mask;
+ break;
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->DDR |= mask;
+ port->CR1 |= mask;
+ port->CR2 |= mask;
+ break;
+ case PAL_MODE_OUTPUT_OPENDRAIN_SLOW:
+ port->DDR |= mask;
+ port->CR1 &= ~mask;
+ port->CR2 &= ~mask;
+ break;
+ case PAL_MODE_OUTPUT_OPENDRAIN:
+ port->DDR |= mask;
+ port->CR1 &= ~mask;
+ port->CR2 |= mask;
+ break;
+ }
+}
+
+#endif /* HAL_USE_PAL */
+
+/** @} */
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