add tusbd_cdc_is_busy

enhance cdc serial device demo
refractor fifo.c

1 files changed, 10 insertions, 3 deletions

diff --git a/tinyusb/class/cdc_device.c b/tinyusb/class/cdc_device.c
index 18f52d1c0..b96320143 100644
--- a/tinyusb/class/cdc_device.c
+++ b/tinyusb/class/cdc_device.c
@@ -74,7 +74,7 @@ static inline bool cdcd_is_configured(uint8_t coreid)
   return cdcd_data[coreid].interface_number != INTERFACE_INVALID_NUMBER;

 }

 

-tusb_error_t cdcd_xfer(uint8_t coreid,  cdc_pipeid_t pipeid, void * p_buffer, uint32_t length, bool is_notify)

+static tusb_error_t cdcd_xfer(uint8_t coreid,  cdc_pipeid_t pipeid, void * p_buffer, uint32_t length, bool is_notify)

 {

   ASSERT(cdcd_is_configured(coreid), TUSB_ERROR_USBD_INTERFACE_NOT_CONFIGURED);

 

@@ -88,13 +88,20 @@ tusb_error_t cdcd_xfer(uint8_t coreid,  cdc_pipeid_t pipeid, void * p_buffer, ui
 }

 

 //--------------------------------------------------------------------+

-// APPLICATION API

+// APPLICATION API (Parameters requires validation)

 //--------------------------------------------------------------------+

 bool tusbd_cdc_is_configured(uint8_t coreid)

 {

   return cdcd_is_configured(coreid);

 }

 

+bool tusbd_cdc_is_busy(uint8_t coreid, cdc_pipeid_t pipeid)

+{

+  ASSERT(cdcd_is_configured(coreid) && (pipeid < CDC_PIPE_ERROR), false);

+

+  return dcd_pipe_is_busy( cdcd_data[coreid].edpt_hdl[pipeid] );

+}

+

 tusb_error_t tusbd_cdc_receive(uint8_t coreid, void * p_buffer, uint32_t length, bool is_notify)

 {

   return cdcd_xfer(coreid, CDC_PIPE_DATA_OUT, p_buffer, length, is_notify);

@@ -208,7 +215,7 @@ tusb_error_t cdcd_control_request(uint8_t coreid, tusb_control_request_t const *
     case CDC_REQUEST_SET_LINE_CODING:

       dcd_pipe_control_xfer(coreid, p_request->bmRequestType_bit.direction,

                             &cdcd_line_coding[coreid], min16_of(sizeof(cdc_line_coding_t), p_request->wLength) );

-      // TODO notify application

+      // TODO notify application on xfer complete

     break;

 

     case CDC_REQUEST_SET_CONTROL_LINE_STATE: // TODO extract DTE present