rename demo to examples

1 files changed, 166 insertions, 0 deletions

diff --git a/examples/device/src/cdc_device_app.c b/examples/device/src/cdc_device_app.c
new file mode 100644
index 000000000..cbc4f4ffe
--- /dev/null
+++ b/examples/device/src/cdc_device_app.c
@@ -0,0 +1,166 @@
+/**************************************************************************/
+/*!
+    @file     cdc_device_app.c
+    @author   hathach (tinyusb.org)
+
+    @section LICENSE
+
+    Software License Agreement (BSD License)
+
+    Copyright (c) 2013, hathach (tinyusb.org)
+    All rights reserved.
+
+    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 of the copyright holders 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 ''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 HOLDER 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.
+
+    This file is part of the tinyusb stack.
+*/
+/**************************************************************************/
+
+#include "cdc_device_app.h"
+
+#if TUSB_CFG_DEVICE_CDC
+
+#include "common/fifo.h" // TODO refractor
+#include "app_os_prio.h"
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+enum { SERIAL_BUFFER_SIZE = 64 };
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+static osal_semaphore_t sem_hdl;
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_rx_buffer[SERIAL_BUFFER_SIZE];
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_tx_buffer[SERIAL_BUFFER_SIZE];
+
+FIFO_DEF(fifo_serial, SERIAL_BUFFER_SIZE, uint8_t, true);
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void cdc_serial_app_mount(uint8_t coreid)
+{
+  osal_semaphore_reset(sem_hdl);
+
+  tud_cdc_receive(coreid, serial_rx_buffer, SERIAL_BUFFER_SIZE, true);
+}
+
+void cdc_serial_app_umount(uint8_t coreid)
+{
+
+}
+
+void tud_cdc_xfer_cb(uint8_t coreid, tusb_event_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
+{
+  switch ( pipe_id )
+  {
+    case CDC_PIPE_DATA_OUT:
+      switch(event)
+      {
+        case TUSB_EVENT_XFER_COMPLETE:
+          for(uint8_t i=0; i<xferred_bytes; i++)
+          {
+            fifo_write(&fifo_serial, serial_rx_buffer+i);
+          }
+          osal_semaphore_post(sem_hdl);  // notify main task
+        break;
+
+        case TUSB_EVENT_XFER_ERROR:
+          tud_cdc_receive(0, serial_rx_buffer, SERIAL_BUFFER_SIZE, true); // ignore, queue transfer again
+        break;
+
+        case TUSB_EVENT_XFER_STALLED:
+        default :
+        break;
+      }
+    break;
+
+    case CDC_PIPE_DATA_IN:
+    case CDC_PIPE_NOTIFICATION:
+    default:
+    break;
+  }
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION CODE
+//--------------------------------------------------------------------+
+void cdc_serial_app_init(void)
+{
+  sem_hdl = osal_semaphore_create(1, 0);
+  VERIFY(sem_hdl, );
+
+  osal_task_create(cdc_serial_app_task, "cdc", 128, NULL, CDC_SERIAL_APP_TASK_PRIO);
+}
+
+tusb_error_t cdc_serial_subtask(void);
+
+void cdc_serial_app_task(void* param)
+{
+  (void) param;
+
+  OSAL_TASK_BEGIN
+  cdc_serial_subtask();
+  OSAL_TASK_END
+}
+
+tusb_error_t cdc_serial_subtask(void)
+{
+  OSAL_SUBTASK_BEGIN
+
+  tusb_error_t error;
+
+  osal_semaphore_wait(sem_hdl, OSAL_TIMEOUT_WAIT_FOREVER, &error);
+  (void) error; // suppress compiler's warnings
+
+  if ( tud_mounted(0) )
+  {
+    // echo back data in the fifo
+    if ( !tud_cdc_busy(0, CDC_PIPE_DATA_IN) )
+    {
+      uint16_t count=0;
+      while( fifo_read(&fifo_serial, &serial_tx_buffer[count]) )
+      {
+        count++;
+      }
+
+      if (count)
+      {
+        tud_cdc_send(0, serial_tx_buffer, count, false);
+      }
+    }
+
+    // getting more data from host
+    tud_cdc_receive(0, serial_rx_buffer, SERIAL_BUFFER_SIZE, true);
+  }
+
+  OSAL_SUBTASK_END
+}
+
+#endif