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, 4 insertions, 23 deletions

diff --git a/src/device/dcd.h b/src/device/dcd.h
index 87837df20..c1715a5b7 100644
--- a/src/device/dcd.h
+++ b/src/device/dcd.h
@@ -113,32 +113,13 @@ void dcd_disconnect       (uint8_t rhport) ATTR_WEAK;
 void dcd_event_handler(dcd_event_t const * event, bool in_isr);

 

 // helper to send bus signal event

-static inline void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr)

-{

-  dcd_event_t event = { .rhport = 0, .event_id = eid, };

-  dcd_event_handler(&event, in_isr);

-}

+void dcd_event_bus_signal (uint8_t rhport, dcd_eventid_t eid, bool in_isr);

 

 // helper to send setup received

-static inline void dcd_event_setup_recieved(uint8_t rhport, uint8_t const * setup, bool in_isr)

-{

-  dcd_event_t event = { .rhport = 0, .event_id = DCD_EVENT_SETUP_RECEIVED };

-  memcpy(&event.setup_received, setup, 8);

-

-  dcd_event_handler(&event, true);

-}

+void dcd_event_setup_received(uint8_t rhport, uint8_t const * setup, bool in_isr);

 

 // helper to send transfer complete event

-static inline void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr)

-{

-  dcd_event_t event = { .rhport = 0, .event_id = DCD_EVENT_XFER_COMPLETE };

-

-  event.xfer_complete.ep_addr = ep_addr;

-  event.xfer_complete.len     = xferred_bytes;

-  event.xfer_complete.result  = result;

-

-  dcd_event_handler(&event, in_isr);

-}

+void dcd_event_xfer_complete (uint8_t rhport, uint8_t ep_addr, uint32_t xferred_bytes, uint8_t result, bool in_isr);

 

 

 /*------------------------------------------------------------------*/

@@ -167,7 +148,7 @@ static inline bool dcd_control_status(uint8_t rhport, uint8_t dir)
 

 static inline void dcd_control_stall(uint8_t rhport)

 {

-  dcd_edpt_stall(rhport, 0);

+  dcd_edpt_stall(rhport, 0 | TUSB_DIR_IN_MASK);

 }

 

 #ifdef __cplusplus