1 files changed, 105 insertions, 0 deletions
diff --git a/os/hal/platforms/STM8L/pal_lld.c b/os/hal/platforms/STM8L/pal_lld.c
new file mode 100644
index 000000000..1b83d8a8d
--- /dev/null
+++ b/os/hal/platforms/STM8L/pal_lld.c
@@ -0,0 +1,105 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 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    STM8L/pal_lld.c
+ * @brief   STM8L 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 and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* 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    @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,
+                           iomode_t mode) {
+
+  switch (mode) {
+  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 */
+
+/** @} */