Add SAMD21 and SAMD51 support for CircuitPython.

The ProtoThreads style subtasks were removed because it led to
extremely unclear control flow. RTOSes can be used if threading is
needed.

Also added some additional functionality to MSC to support dynamic
LUNs and read-only LUNs.

1 files changed, 2 insertions, 5 deletions

diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c
index a6f1f1fbb..f3d4622f8 100644
--- a/src/class/cdc/cdc_device.c
+++ b/src/class/cdc/cdc_device.c
@@ -289,8 +289,6 @@ tusb_error_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * p_interface
 

 tusb_error_t cdcd_control_request_st(uint8_t rhport, tusb_control_request_t const * p_request)

 {

-  OSAL_SUBTASK_BEGIN

-

   //------------- Class Specific Request -------------//

   if (p_request->bmRequestType_bit.type != TUSB_REQ_TYPE_CLASS) return TUSB_ERROR_DCD_CONTROL_REQUEST_NOT_SUPPORT;

 

@@ -301,7 +299,7 @@ tusb_error_t cdcd_control_request_st(uint8_t rhport, tusb_control_request_t cons
   if ( (CDC_REQUEST_GET_LINE_CODING == p_request->bRequest) || (CDC_REQUEST_SET_LINE_CODING == p_request->bRequest) )

   {

     uint16_t len = tu_min16(sizeof(cdc_line_coding_t), p_request->wLength);

-    usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, &p_cdc->line_coding, len);

+    usbd_control_xfer_st(rhport, p_request->bmRequestType_bit.direction, (uint8_t*) &p_cdc->line_coding, len);

 

     // Invoke callback

     if (CDC_REQUEST_SET_LINE_CODING == p_request->bRequest)

@@ -327,8 +325,7 @@ tusb_error_t cdcd_control_request_st(uint8_t rhport, tusb_control_request_t cons
   {

     dcd_control_stall(rhport); // stall unsupported request

   }

-

-  OSAL_SUBTASK_END

+  return TUSB_ERROR_NONE;

 }

 

 tusb_error_t cdcd_xfer_cb(uint8_t rhport, uint8_t ep_addr, tusb_event_t event, uint32_t xferred_bytes)