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| author | Giovanni Di Sirio <gdisirio@gmail.com> | 2016-04-02 09:09:22 +0000 |
|---|---|---|
| committer | Giovanni Di Sirio <gdisirio@gmail.com> | 2016-04-02 09:09:22 +0000 |
| commit | 20eb1fa15dcee331d9e45ab54aee8d09a5f5e925 (patch) | |
| tree | 94a019e18b3bda851a93dc85367528973d9107ef /os/hal/ports/LPC/LPC214x/hal_pal_lld.c | |
| parent | ab6c3ecaa01676ebad88637ad76b91899cb8a576 (diff) | |
| download | ChibiOS-20eb1fa15dcee331d9e45ab54aee8d09a5f5e925.tar.gz ChibiOS-20eb1fa15dcee331d9e45ab54aee8d09a5f5e925.tar.bz2 ChibiOS-20eb1fa15dcee331d9e45ab54aee8d09a5f5e925.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@9214 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/hal/ports/LPC/LPC214x/hal_pal_lld.c')
| -rw-r--r-- | os/hal/ports/LPC/LPC214x/hal_pal_lld.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/os/hal/ports/LPC/LPC214x/hal_pal_lld.c b/os/hal/ports/LPC/LPC214x/hal_pal_lld.c new file mode 100644 index 000000000..154709143 --- /dev/null +++ b/os/hal/ports/LPC/LPC214x/hal_pal_lld.c @@ -0,0 +1,111 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 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 LPC214x/pal_lld.c
+ * @brief LPC214x FIO 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 LPC214x I/O ports configuration.
+ * @details FIO units and PINSEL registers initialization.
+ *
+ * @param[in] config the LPC214x ports configuration
+ *
+ * @notapi
+ */
+void _pal_lld_init(const PALConfig *config) {
+
+ /* Enables the access through the fast registers.*/
+ SCS = 3;
+
+ /* I/O pads initial assignment, device drivers may change this setup at a
+ * later time.*/
+ PINSEL0 = config->pinsel0;
+ PINSEL1 = config->pinsel1;
+ PINSEL2 = config->pinsel2;
+
+ /* I/O pads direction initial setting.*/
+ FIO0Base->FIO_MASK = 0;
+ FIO0Base->FIO_PIN = config->P0Data.pin;
+ FIO0Base->FIO_DIR = config->P0Data.dir;
+ FIO1Base->FIO_MASK = 0;
+ FIO1Base->FIO_PIN = config->P1Data.pin;
+ FIO1Base->FIO_DIR = config->P1Data.dir;
+}
+
+/**
+ * @brief Pads mode setup.
+ * @details This function programs a pads group belonging to the same port
+ * with the specified mode.
+ * @note @p PAL_MODE_UNCONNECTED is implemented as push pull output with
+ * high state.
+ * @note This function does not alter the @p PINSELx registers. Alternate
+ * functions setup must be handled by device-specific code.
+ *
+ * @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,
+ iomode_t mode) {
+
+ switch (mode) {
+ case PAL_MODE_RESET:
+ case PAL_MODE_INPUT:
+ port->FIO_DIR &= ~mask;
+ break;
+ case PAL_MODE_UNCONNECTED:
+ port->FIO_PIN |= mask;
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ port->FIO_DIR |= mask;
+ break;
+ }
+}
+
+#endif /* HAL_USE_PAL */
+
+/** @} */
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