Add missing file in previous commit

2017-11-28 12:54:03 -06:00 · 2017-11-28 12:54:03 -06:00 · 472fa0cf20
commit 472fa0cf20
parent 0c614311af
1 changed files with 99 additions and 0 deletions
--- a/configs/stm32f4discovery/src/stm32_nunchuck.c
+++ b/configs/stm32f4discovery/src/stm32_nunchuck.c
@ -0,0 +1,99 @@
+/****************************************************************************
+ * configs/stm32f4discovery/src/stm32_nunchuck.c
+ *
+ *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+ *   Author: Alan Carvalho de Assis <acassis@gmail.com>
+ *
+ * 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 <stdint.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <debug.h>
+
+#include <nuttx/irq.h>
+#include <nuttx/arch.h>
+#include <nuttx/fs/fs.h>
+#include <nuttx/input/nunchuck.h>
+
+#include "stm32_i2c.h"
+#include "stm32f4discovery.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define NUNCHUCK_I2C_PORTNO 1   /* On I2C1 */
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: nunchuck_initialize
+ *
+ * Description:
+ *   Initialize and register the Nunchuck joystick driver
+ *
+ ****************************************************************************/
+
+int nunchuck_initialize(FAR char *devname)
+{
+  FAR struct i2c_master_s *i2c;
+  int ret;
+
+  iinfo("Initializing Wii Nunchuck!\n");
+
+  /* Initialize I2C */
+
+  i2c = stm32_i2cbus_initialize(NUNCHUCK_I2C_PORTNO);
+  if (i2c == NULL)
+    {
+      return -ENODEV;
+    }
+
+  /* Register the joystick device as /dev/nunchuck0 */
+
+  iinfo("Initialize joystick driver: %s\n", devname);
+
+  ret = nunchuck_register(devname, i2c);
+  if (ret < 0)
+    {
+      ierr("ERROR: nunchuck_register failed: %d\n", ret);
+    }
+
+  return ret;
+}