1 files changed, 177 insertions, 0 deletions
diff --git a/apps/examples/i2schar/i2schar.h b/apps/examples/i2schar/i2schar.h
new file mode 100644
index 000000000..9596f7dc4
--- /dev/null
+++ b/apps/examples/i2schar/i2schar.h
@@ -0,0 +1,177 @@
+/****************************************************************************
+ * examples/examples/i2schar/i2schar.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef __APPS_EXAMPLES_I2SCHAR_I2SCHAR_H
+#define __APPS_EXAMPLES_I2SCHAR_I2SCHAR_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <pthread.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+/* Configuration ************************************************************/
+/* CONFIG_NSH_BUILTIN_APPS - Build the I2SCHAR test as an NSH built-in
+ *   function. Default: Built as a standalone problem
+ * CONFIG_EXAMPLES_I2SCHAR_DEVPATH - The default path to the I2S character
+ *   device. Default: /dev/i2schar0
+ */
+
+#ifndef CONFIG_AUDIO_I2SCHAR
+#  error "I2S character device support is not enabled (CONFIG_AUDIO_I2SCHAR)"
+#endif
+
+#ifndef CONFIG_EXAMPLES_I2SCHAR_DEVPATH
+#  define CONFIG_EXAMPLES_I2SCHAR_DEVPATH "/dev/is2char0"
+#endif
+
+#ifdef CONFIG_EXAMPLES_I2SCHAR_TX
+#  ifndef CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS
+#    define CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS 4
+#  endif
+#  ifndef CONFIG_EXAMPLES_I2SCHAR_TXSTACKSIZE
+#    define CONFIG_EXAMPLES_I2SCHAR_TXSTACKSIZE 1536
+#  endif
+#else
+#  undef CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS
+#  define CONFIG_EXAMPLES_I2SCHAR_TXBUFFERS 0
+#endif
+
+#ifdef CONFIG_EXAMPLES_I2SCHAR_RX
+#  ifndef CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS
+#    define CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS 4
+#  endif
+#  ifndef CONFIG_EXAMPLES_I2SCHAR_RXSTACKSIZE
+#    define CONFIG_EXAMPLES_I2SCHAR_RXSTACKSIZE 1536
+#  endif
+#else
+#  undef CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS
+#  define CONFIG_EXAMPLES_I2SCHAR_RXBUFFERS 0
+#endif
+
+#ifndef CONFIG_EXAMPLES_I2SCHAR_BUFSIZE
+#   efine CONFIG_EXAMPLES_I2SCHAR_BUFSIZE 256
+#endif
+
+/* Debug ********************************************************************/
+
+#ifdef CONFIG_CPP_HAVE_VARARGS
+#  ifdef CONFIG_DEBUG
+#    define message(...) syslog(__VA_ARGS__)
+#    define msgflush()
+#  else
+#    define message(...) printf(__VA_ARGS__)
+#    define msgflush() fflush(stdout)
+#  endif
+#else
+#  ifdef CONFIG_DEBUG
+#    define message syslog
+#    define msgflush()
+#  else
+#    define message printf
+#    define msgflush() fflush(stdout)
+#  endif
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct i2schar_state_s
+{
+  bool      initialized;
+  FAR char *devpath;
+#ifdef CONFIG_EXAMPLES_I2SCHAR_TX
+  int       txcount;
+#endif
+#ifdef CONFIG_EXAMPLES_I2SCHAR_RX
+  int       rxcount;
+#endif
+};
+
+/****************************************************************************
+ * Public Variables
+ ****************************************************************************/
+
+extern struct i2schar_state_s g_i2schar;
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: i2schar_devinit()
+ *
+ * Description:
+ *   Perform architecuture-specific initialization of the I2s hardware and
+ *   registration of the I2S character driver CHAR hardware.  If
+ *   CONFIG_EXAMPLES_I2SCHAR_DEVINIT is defined, then board-specific logic
+ *   must provide this function.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_I2SCHAR_DEVINIT
+int i2schar_devinit(void);
+#endif
+
+/****************************************************************************
+ * Name: i2schar_transmitter()
+ *
+ * Description:
+ *   This is the entry point for the transmitter thread.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_I2SCHAR_TX
+pthread_addr_t i2schar_transmitter(pthread_addr_t arg);
+#endif
+
+/****************************************************************************
+ * Name: i2schar_receiver()
+ *
+ * Description:
+ *   This is the entry point for the receiver thread.
+ *
+ ****************************************************************************/
+
+#ifdef CONFIG_EXAMPLES_I2SCHAR_RX
+pthread_addr_t i2schar_receiver(pthread_addr_t arg);
+#endif
+
+#endif /* __APPS_EXAMPLES_I2SCHAR_I2SCHAR_H */