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| author | utzig <utzig@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-06-29 23:06:17 +0000 |
|---|---|---|
| committer | utzig <utzig@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2014-06-29 23:06:17 +0000 |
| commit | 766a2388d46f49e07ec0280fa4f3d254367850d1 (patch) | |
| tree | f7c116f3a638a861575a16467703ad19fd26255c /os/hal/ports/AVR/pal_lld.c | |
| parent | 5eb1ae8cc3f4d2584d31e2d9672162bf8bfc0274 (diff) | |
| download | ChibiOS-766a2388d46f49e07ec0280fa4f3d254367850d1.tar.gz ChibiOS-766a2388d46f49e07ec0280fa4f3d254367850d1.tar.bz2 ChibiOS-766a2388d46f49e07ec0280fa4f3d254367850d1.zip | |
AVR HAL ported from RT-2 (serial/pal/hal tested)
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@6999 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports/AVR/pal_lld.c')
| -rw-r--r-- | os/hal/ports/AVR/pal_lld.c | 156 |
1 files changed, 156 insertions, 0 deletions
diff --git a/os/hal/ports/AVR/pal_lld.c b/os/hal/ports/AVR/pal_lld.c new file mode 100644 index 000000000..f2f5393eb --- /dev/null +++ b/os/hal/ports/AVR/pal_lld.c @@ -0,0 +1,156 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006-2014 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+
+/**
+ * @file AVR/pal_lld.c
+ * @brief AVR GPIO low level driver code.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#include "hal.h"
+
+#if HAL_USE_PAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief AVR GPIO ports configuration.
+ * @details GPIO registers initialization.
+ *
+ * @param[in] config the AVR ports configuration
+ *
+ * @notapi
+ */
+void _pal_lld_init(const PALConfig *config) {
+
+#if defined(PORTA) || defined(__DOXYGEN__)
+ PORTA = config->porta.out;
+ DDRA = config->porta.dir;
+#endif
+
+#if defined(PORTB) || defined(__DOXYGEN__)
+ PORTB = config->portb.out;
+ DDRB = config->portb.dir;
+#endif
+
+#if defined(PORTC) || defined(__DOXYGEN__)
+ PORTC = config->portc.out;
+ DDRC = config->portc.dir;
+#endif
+
+#if defined(PORTD) || defined(__DOXYGEN__)
+ PORTD = config->portd.out;
+ DDRD = config->portd.dir;
+#endif
+
+#if defined(PORTE) || defined(__DOXYGEN__)
+ PORTE = config->porte.out;
+ DDRE = config->porte.dir;
+#endif
+
+#if defined(PORTF) || defined(__DOXYGEN__)
+ PORTF = config->portf.out;
+ DDRF = config->portf.dir;
+#endif
+
+#if defined(PORTG) || defined(__DOXYGEN__)
+ PORTG = config->portg.out;
+ DDRG = config->portg.dir;
+#endif
+
+#if defined(PORTH) || defined(__DOXYGEN__)
+ PORTH = config->porth.out;
+ DDRH = config->porth.dir;
+#endif
+
+#if defined(PORTJ) || defined(__DOXYGEN__)
+ PORTJ = config->portj.out;
+ DDRJ = config->portj.dir;
+#endif
+
+#if defined(PORTK) || defined(__DOXYGEN__)
+ PORTK = config->portk.out;
+ DDRK = config->portk.dir;
+#endif
+
+#if defined(PORTL) || defined(__DOXYGEN__)
+ PORTL = config->portl.out;
+ DDRL = config->portl.dir;
+#endif
+}
+
+/**
+ * @brief Pads 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 AVR Family User's Guide. Unconnected pads are set to input
+ * with pull-up by default.
+ *
+ * @notapi
+ */
+void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ iomode_t mode) {
+
+ switch (mode) {
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT:
+ case PAL_MODE_INPUT_ANALOG:
+ port->dir &= ~mask;
+ port->out &= ~mask;
+ break;
+ case PAL_MODE_UNCONNECTED:
+ case PAL_MODE_INPUT_PULLUP:
+ port->dir &= ~mask;
+ port->out |= mask;
+ break;
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->dir |= mask;
+ break;
+ }
+}
+
+#endif /* HAL_USE_PAL */
+
+/** @} */
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