1 files changed, 110 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..a91f380a4
--- /dev/null
+++ b/os/hal/platforms/STM8L/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    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.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* 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 */
+
+/** @} */