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[app][mdebug] don't poll for usb txn completion

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This commit is contained in:
Brian Swetland
2015-07-30 15:13:46 -07:00
parent 9ad76f486a
commit 855ac68ec0
1 changed files with 11 additions and 3 deletions
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14
app/mdebug/mdebug.c
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@@ -25,11 +25,15 @@
#include <platform.h>
#include <arch/arm.h>
#include <kernel/thread.h>
#include <kernel/event.h>
#include <platform/lpc43xx-gpio.h>
#include "swd.h"
static event_t txevt = EVENT_INITIAL_VALUE(txevt, 0, 0);
static event_t rxevt = EVENT_INITIAL_VALUE(rxevt, 0, 0);
static udc_request_t *txreq;
static udc_request_t *rxreq;
static udc_endpoint_t *txept;
@@ -51,26 +55,30 @@ static void mdebug_notify(udc_gadget_t *gadget, unsigned event) {
static void rx_complete(udc_request_t *req, unsigned actual, int status) {
rxactual = actual;
rxstatus = status;
event_signal(&rxevt, 0);
}
static void tx_complete(udc_request_t *req, unsigned actual, int status) {
txstatus = status;
txstatus = status;
event_signal(&txevt, 0);
}
void usb_xmit(void *data, unsigned len) {
event_unsignal(&txevt);
txreq->buffer = data;
txreq->length = len;
txstatus = 1;
udc_request_queue(txept, txreq);
while (txstatus == 1) thread_yield();
event_wait(&txevt);
}
unsigned usb_recv(void *data, unsigned len) {
event_unsignal(&rxevt);
rxreq->buffer = data;
rxreq->length = len;
rxstatus = 1;
udc_request_queue(rxept, rxreq);
while (rxstatus == 1) thread_yield();
event_wait(&rxevt);
return rxactual;
}