nucleo-f334r8: add HRTIM initialization

configs/nucleo-f334r8/src/stm32_hrtim.c

@@ -0,0 +1,96 @@
+/****************************************************************************
+ * configs/nucleo-f334r8/src/stm32_hrtim.c
+ *
+ *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+ *   Author: Mateusz Szafoni <raiden00@railab.me>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdbool.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/board.h>
+
+#include "stm32.h"
+
+#if defined(CONFIG_HRTIM) && defined(CONFIG_STM32_HRTIM1)
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: stm32_hrtim_setup
+ *
+ * Description:
+ *   Initialize HRTIM
+ *
+ ****************************************************************************/
+
+int stm32_hrtim_setup(void)
+{
+  static bool initialized = false;
+  struct hrtim_dev_s* hrtim = NULL;
+  int ret;
+
+  if (!initialized)
+    {
+      /* Get the HRTIM interface */
+
+      hrtim = stm32_hrtiminitialize();
+      if (hrtim == NULL)
+        {
+          aerr("ERROR: Failed to get HRTIM1interface\n");
+          return -ENODEV;
+        }
+
+      /* Register the HRTIM character driver at /dev/hrtim0 */
+
+      ret = hrtim_register("/dev/hrtim0", hrtim);
+      if (ret < 0)
+        {
+          aerr("ERROR: hrtim_register failed: %d\n", ret);
+          return ret;
+        }
+
+      initialized = true;
+    }
+
+  return OK;
+}
+
+#endif /* CONFIG_HRTIM && CONFIG_STM32_HRTIM1 */