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Add SAMD21 and SAMD51 support for CircuitPython.

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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.
This commit is contained in:
Scott Shawcroft
2018-10-24 23:55:10 -07:00
parent cb9bcce6a2
commit c582c0fda9
16 changed files with 1051 additions and 208 deletions
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src/portable/nordic/nrf5x/dcd_nrf5x.c
+7 -3
View File
@@ -203,7 +203,9 @@ static void xact_control_start(void)
bool dcd_control_xfer (uint8_t rhport, uint8_t dir, uint8_t * buffer, uint16_t length)
{
(void) rhport;
osal_semaphore_wait( _usbd_ctrl_sem, OSAL_TIMEOUT_CONTROL_XFER);
if ( length )
{
@@ -216,9 +218,11 @@ bool dcd_control_xfer (uint8_t rhport, uint8_t dir, uint8_t * buffer, uint16_t l
xact_control_start();
}else
{
NRF_USBD->EPIN[0].PTR = 0;
NRF_USBD->EPIN[0].MAXCNT = 0;
// Status Phase also require Easy DMA has to be free as well !!!!
edpt_dma_start(&NRF_USBD->TASKS_EP0STATUS);
edpt_dma_end();
NRF_USBD->TASKS_EP0STATUS = 1;
osal_semaphore_post(_usbd_ctrl_sem, false);
}
return true;
@@ -434,7 +438,7 @@ void USBD_IRQHandler(void)
NRF_USBD->BMREQUESTTYPE , NRF_USBD->BREQUEST, NRF_USBD->WVALUEL , NRF_USBD->WVALUEH,
NRF_USBD->WINDEXL , NRF_USBD->WINDEXH , NRF_USBD->WLENGTHL, NRF_USBD->WLENGTHH
};
dcd_event_setup_recieved(0, setup, true);
dcd_event_setup_received(0, setup, true);
}
if ( int_status & USBD_INTEN_EP0DATADONE_Msk )