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usb: Shuffle endpoint_schedule into endpoint_schedule_wait

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This commit is contained in:
Ben Gamari
2013-07-02 19:31:51 -04:00
parent 42b7391918
commit e6bf90af23
2 changed files with 33 additions and 23 deletions
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28
firmware/hackrf_usb/usb.c
View File

@ -188,6 +188,34 @@ void usb_endpoint_prime(
} }
} }
void usb_endpoint_schedule_wait(
const usb_endpoint_t* const endpoint,
usb_transfer_descriptor_t* const td,
void* const data,
const uint32_t maximum_length
) {
// Ensure that endpoint is ready to be primed.
// It may have been flushed due to an aborted transaction.
// TODO: This should be preceded by a flush?
while( usb_endpoint_is_ready(endpoint) );
// Configure a transfer.
td->next_dtd_pointer = USB_TD_NEXT_DTD_POINTER_TERMINATE;
td->total_bytes =
USB_TD_DTD_TOKEN_TOTAL_BYTES(maximum_length)
| USB_TD_DTD_TOKEN_IOC
| USB_TD_DTD_TOKEN_MULTO(0)
| USB_TD_DTD_TOKEN_STATUS_ACTIVE
;
td->buffer_pointer_page[0] = (uint32_t)data;
td->buffer_pointer_page[1] = ((uint32_t)data + 0x1000) & 0xfffff000;
td->buffer_pointer_page[2] = ((uint32_t)data + 0x2000) & 0xfffff000;
td->buffer_pointer_page[3] = ((uint32_t)data + 0x3000) & 0xfffff000;
td->buffer_pointer_page[4] = ((uint32_t)data + 0x4000) & 0xfffff000;
usb_endpoint_prime(endpoint, td);
}
// Schedule an already filled-up transfer descriptor for execution on // Schedule an already filled-up transfer descriptor for execution on
// the given endpoint. Note that this requires that one knows the tail // the given endpoint. Note that this requires that one knows the tail
// of the endpoint's TD queue // of the endpoint's TD queue

26
firmware/hackrf_usb/usb_queue.c
View File

@ -40,28 +40,10 @@ void usb_endpoint_schedule(
void* const data, void* const data,
const uint32_t maximum_length const uint32_t maximum_length
) { ) {
usb_transfer_descriptor_t* const td = usb_transfer_descriptor(endpoint->address); usb_endpoint_schedule_wait(endpoint,
usb_transfer_descriptor(endpoint->address),
// Ensure that endpoint is ready to be primed. data,
// It may have been flushed due to an aborted transaction. maximum_length);
// TODO: This should be preceded by a flush?
while( usb_endpoint_is_ready(endpoint) );
// Configure a transfer.
td->next_dtd_pointer = USB_TD_NEXT_DTD_POINTER_TERMINATE;
td->total_bytes =
USB_TD_DTD_TOKEN_TOTAL_BYTES(maximum_length)
| USB_TD_DTD_TOKEN_IOC
| USB_TD_DTD_TOKEN_MULTO(0)
| USB_TD_DTD_TOKEN_STATUS_ACTIVE
;
td->buffer_pointer_page[0] = (uint32_t)data;
td->buffer_pointer_page[1] = ((uint32_t)data + 0x1000) & 0xfffff000;
td->buffer_pointer_page[2] = ((uint32_t)data + 0x2000) & 0xfffff000;
td->buffer_pointer_page[3] = ((uint32_t)data + 0x3000) & 0xfffff000;
td->buffer_pointer_page[4] = ((uint32_t)data + 0x4000) & 0xfffff000;
usb_endpoint_prime(endpoint, td);
} }
void usb_endpoint_schedule_ack( void usb_endpoint_schedule_ack(