diff options
| author | hathach <[email protected]> | 2014-03-24 15:30:51 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2014-03-24 15:30:51 +0700 |
| commit | d3616987b778619ec8bdca2f608326cec0488fb3 (patch) | |
| tree | 896f15b49301824273310377c56d8afa3fc44725 /demos/device/src/cdc_device_app.c | |
| parent | 7d535647556fbc260df6be01d365195ad4f85c91 (diff) | |
rename demo app file
Diffstat (limited to 'demos/device/src/cdc_device_app.c')
| -rw-r--r-- | demos/device/src/cdc_device_app.c | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/demos/device/src/cdc_device_app.c b/demos/device/src/cdc_device_app.c new file mode 100644 index 000000000..90b38e21d --- /dev/null +++ b/demos/device/src/cdc_device_app.c @@ -0,0 +1,151 @@ +/**************************************************************************/
+/*!
+ @file cdcd_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 "cdcd_app.h"
+
+#if TUSB_CFG_DEVICE_CDC
+
+#include "common/fifo.h" // TODO refractor
+
+//--------------------------------------------------------------------+
+// INCLUDE
+//--------------------------------------------------------------------+
+enum {
+ CDCD_APP_BUFFER_SIZE = 64
+};
+
+//--------------------------------------------------------------------+
+// MACRO CONSTANT TYPEDEF
+//--------------------------------------------------------------------+
+OSAL_TASK_DEF(cdcd_serial_app_task, 128, CDCD_SERIAL_APP_TASK_PRIO);
+OSAL_SEM_DEF(cdcd_semaphore);
+
+static osal_semaphore_handle_t sem_hdl;
+
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_rx_buffer[CDCD_APP_BUFFER_SIZE];
+TUSB_CFG_ATTR_USBRAM static uint8_t serial_tx_buffer[CDCD_APP_BUFFER_SIZE];
+
+//--------------------------------------------------------------------+
+// INTERNAL OBJECT & FUNCTION DECLARATION
+//--------------------------------------------------------------------+
+FIFO_DEF(fifo_serial, CDCD_APP_BUFFER_SIZE, uint8_t, true);
+
+//--------------------------------------------------------------------+
+// IMPLEMENTATION
+//--------------------------------------------------------------------+
+void cdcd_serial_app_init(void)
+{
+ sem_hdl = osal_semaphore_create( OSAL_SEM_REF(cdcd_semaphore) );
+ ASSERT_PTR( sem_hdl, VOID_RETURN);
+
+ ASSERT( TUSB_ERROR_NONE == osal_task_create( OSAL_TASK_REF(cdcd_serial_app_task) ), VOID_RETURN);
+}
+
+void tusbd_cdc_mounted_cb(uint8_t coreid)
+{
+ osal_semaphore_reset(sem_hdl);
+
+ tusbd_cdc_receive(coreid, serial_rx_buffer, CDCD_APP_BUFFER_SIZE, true);
+}
+
+void tusbd_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:
+ xferred_bytes = 0; // ignore
+ break;
+
+ case TUSB_EVENT_XFER_STALLED:
+ default :
+ break;
+ }
+ break;
+
+ case CDC_PIPE_DATA_IN:
+ case CDC_PIPE_NOTIFICATION:
+ default:
+ break;
+ }
+}
+
+OSAL_TASK_FUNCTION( cdcd_serial_app_task , p_task_para)
+{
+ OSAL_TASK_LOOP_BEGIN
+
+ tusb_error_t error;
+
+ osal_semaphore_wait(sem_hdl, OSAL_TIMEOUT_WAIT_FOREVER, &error);
+ (void) error; // suppress compiler's warnings
+
+ if ( tusbd_is_configured(0) )
+ {
+ // echo back data in the fifo
+ if ( !tusbd_cdc_is_busy(0, CDC_PIPE_DATA_IN) )
+ {
+ uint16_t count=0;
+ while( fifo_read(&fifo_serial, &serial_tx_buffer[count]) )
+ {
+ count++;
+ }
+
+ if (count)
+ {
+ tusbd_cdc_send(0, serial_tx_buffer, count, false);
+ }
+ }
+
+ // getting more data from host
+ tusbd_cdc_receive(0, serial_rx_buffer, CDCD_APP_BUFFER_SIZE, true);
+ }
+
+ OSAL_TASK_LOOP_END
+}
+
+#endif
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