move old host example to obsolete

examples/obsolete/host/src/cdc_serial_host_app.c

@@ -0,0 +1,169 @@
+/**************************************************************************/
+/*!
+    @file     cdc_serial_host_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_serial_host_app.h"
+#include "app_os_prio.h"
+
+#if TUSB_CFG_HOST_CDC
+
+#define QUEUE_SERIAL_DEPTH   100
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+static osal_semaphore_t sem_hdl;
+
+enum { SERIAL_BUFFER_SIZE = 64 };
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_in_buffer[SERIAL_BUFFER_SIZE];
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_out_buffer[SERIAL_BUFFER_SIZE];
+
+static uint8_t received_bytes; // set by transfer complete callback
+
+//--------------------------------------------------------------------+
+// tinyusb callbacks
+//--------------------------------------------------------------------+
+void tuh_cdc_mounted_cb(uint8_t dev_addr)
+{ // application set-up
+  printf("\na CDC device  (address %d) is mounted\n", dev_addr);
+
+  memclr_(serial_in_buffer, sizeof(serial_in_buffer));
+  memclr_(serial_out_buffer, sizeof(serial_out_buffer));
+  received_bytes = 0;
+
+  osal_semaphore_reset(sem_hdl);
+  tuh_cdc_receive(dev_addr, serial_in_buffer, SERIAL_BUFFER_SIZE, true); // schedule first transfer
+}
+
+void tuh_cdc_unmounted_cb(uint8_t dev_addr)
+{ // application tear-down
+  printf("\na CDC device (address %d) is unmounted \n", dev_addr);
+}
+
+// invoked ISR context
+void tuh_cdc_xfer_isr(uint8_t dev_addr, tusb_event_t event, cdc_pipeid_t pipe_id, uint32_t xferred_bytes)
+{
+  (void) dev_addr; // compiler warnings
+
+  switch ( pipe_id )
+  {
+    case CDC_PIPE_DATA_IN:
+      switch(event)
+      {
+        case TUSB_EVENT_XFER_COMPLETE:
+          received_bytes = xferred_bytes;
+          osal_semaphore_post(sem_hdl);  // notify main task
+        break;
+
+        case TUSB_EVENT_XFER_ERROR:
+          received_bytes = 0; // ignore
+          tuh_cdc_receive(dev_addr, serial_in_buffer, SERIAL_BUFFER_SIZE, true); // waiting for next data
+        break;
+
+        case TUSB_EVENT_XFER_STALLED:
+        default :
+        break;
+      }
+    break;
+
+    case CDC_PIPE_DATA_OUT:
+    case CDC_PIPE_NOTIFICATION:
+    default:
+    break;
+  }
+}
+
+//--------------------------------------------------------------------+
+// APPLICATION
+//--------------------------------------------------------------------+
+void cdc_serial_host_app_init(void)
+{
+  sem_hdl = osal_semaphore_create(1, 0);
+  ASSERT_PTR( sem_hdl, VOID_RETURN);
+
+  VERIFY( osal_task_create(cdc_serial_host_app_task, "cdc", 128, NULL, CDC_SERIAL_APP_TASK_PRIO), );
+}
+
+//------------- main task -------------//
+void cdc_serial_host_app_task( void* param )
+{
+  (void) param;
+
+  OSAL_TASK_BEGIN
+
+  //------------- send characters got from uart terminal to the first CDC device -------------//
+  for(uint8_t dev_addr=1; dev_addr <= TUSB_CFG_HOST_DEVICE_MAX; dev_addr++)
+  {
+    if ( tuh_cdc_serial_is_mounted(dev_addr) )
+    {
+      int ch_tx = getchar();
+      if ( ch_tx > 0 )
+      { // USB is much faster than serial, here we assume usb is always complete. There could be some characters missing though
+        serial_out_buffer[0] = (uint8_t) ch_tx;
+
+        if ( !tuh_cdc_is_busy(dev_addr, CDC_PIPE_DATA_OUT) )
+        {
+          tuh_cdc_send(dev_addr, serial_out_buffer, 1, false); // no need for callback on serial out pipe
+        }
+      }
+      break; // demo app only communicate with the first CDC-capable device
+    }
+  }
+
+  //------------- print out received characters -------------//
+  tusb_error_t error;
+  osal_semaphore_wait(sem_hdl, 100, &error); // waiting for incoming data
+
+  if ( TUSB_ERROR_NONE == error)
+  {
+    for(uint8_t i=0; i<received_bytes; i++) putchar(serial_in_buffer[i]);
+
+    for(uint8_t dev_addr=1; dev_addr <= TUSB_CFG_HOST_DEVICE_MAX; dev_addr++)
+    {
+      if ( tuh_cdc_serial_is_mounted(dev_addr) )
+      {
+        tuh_cdc_receive(dev_addr, serial_in_buffer, SERIAL_BUFFER_SIZE, true);
+
+        break; // demo app only communicate with the first CDC-capable device
+      }
+    }
+  }
+
+  OSAL_TASK_END
+}
+
+#endif