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| author | Fabio Utzig <utzig@utzig.org> | 2015-05-15 20:44:03 -0300 |
|---|---|---|
| committer | Fabio Utzig <utzig@utzig.org> | 2015-05-15 20:44:03 -0300 |
| commit | 4ac0b638b92db47625d729b938e71b262dadbb43 (patch) | |
| tree | 4c10f74b19044b1ed2faefc2c3aa72de3bcd57a0 /os/hal/ports/NRF51/NRF51822/pal_lld.c | |
| parent | aa43fd6554c1d35360c857a1b5d5fddcf1577a32 (diff) | |
| download | ChibiOS-Contrib-4ac0b638b92db47625d729b938e71b262dadbb43.tar.gz ChibiOS-Contrib-4ac0b638b92db47625d729b938e71b262dadbb43.tar.bz2 ChibiOS-Contrib-4ac0b638b92db47625d729b938e71b262dadbb43.zip | |
Add basic PAL driver
Diffstat (limited to 'os/hal/ports/NRF51/NRF51822/pal_lld.c')
| -rw-r--r-- | os/hal/ports/NRF51/NRF51822/pal_lld.c | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/os/hal/ports/NRF51/NRF51822/pal_lld.c b/os/hal/ports/NRF51/NRF51822/pal_lld.c new file mode 100644 index 0000000..ccbe20e --- /dev/null +++ b/os/hal/ports/NRF51/NRF51822/pal_lld.c @@ -0,0 +1,129 @@ +/*
+ Copyright (C) 2015 Fabio Utzig
+
+ 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 pal_lld.c
+ * @brief NRF51822 PAL subsystem low level driver source.
+ *
+ * @addtogroup PAL
+ * @{
+ */
+
+#include "osal.h"
+#include "hal.h"
+
+#if (HAL_USE_PAL == TRUE) || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver local definitions. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported variables. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions. */
+/*===========================================================================*/
+
+void _pal_lld_setpadmode(uint8_t pad, iomode_t mode)
+{
+ uint8_t value = 0;
+
+ osalDbgAssert(pad < 32, "invalid pad");
+
+ switch (mode) {
+ case PAL_MODE_RESET:
+ case PAL_MODE_UNCONNECTED:
+ value = 2;
+ break;
+ case PAL_MODE_INPUT:
+ case PAL_MODE_INPUT_ANALOG:
+ value = 0;
+ break;
+ case PAL_MODE_INPUT_PULLUP:
+ value = 0xC;
+ break;
+ case PAL_MODE_INPUT_PULLDOWN:
+ value = 4;
+ break;
+ case PAL_MODE_OUTPUT_PUSHPULL:
+ value = 1;
+ break;
+ case PAL_MODE_OUTPUT_OPENDRAIN:
+ value = 0x61;
+ break;
+ }
+
+ NRF_GPIO->PIN_CNF[pad] = value;
+}
+
+/*===========================================================================*/
+/* Driver interrupt handlers. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions. */
+/*===========================================================================*/
+
+/**
+ * @brief STM32 I/O ports configuration.
+ * @details Ports A-D(E, F, G, H) clocks enabled.
+ *
+ * @param[in] config the STM32 ports configuration
+ *
+ * @notapi
+ */
+void _pal_lld_init(const PALConfig *config)
+{
+ uint8_t i;
+
+ for (i = 0; i < TOTAL_GPIO_PADS; i++) {
+ pal_lld_setpadmode(IOPORT1, i, config->pads[i]);
+ }
+}
+
+/**
+ * @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
+ *
+ * @notapi
+ */
+void _pal_lld_setgroupmode(ioportid_t port,
+ ioportmask_t mask,
+ iomode_t mode)
+{
+ uint8_t i;
+
+ (void)mask;
+
+ for (i = 0; i < TOTAL_GPIO_PADS; i++) {
+ pal_lld_setpadmode(port, i, mode);
+ }
+}
+
+#endif /* HAL_USE_PAL == TRUE */
+
+/** @} */
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