stlink: always use a valid endpoint

[openocd.git] / src / jtag / drivers / stlink_usb.c

diff --git a/src/jtag/drivers/stlink_usb.c b/src/jtag/drivers/stlink_usb.c
index 3f9ce37a9d1e06c2c3d5b3f79114addac3ec3978..45bb5019f95fefaac71d93caa845ed7abd8f08a2 100644 (file)
--- a/src/jtag/drivers/stlink_usb.c
+++ b/src/jtag/drivers/stlink_usb.c
@@ -55,7 +55,6 @@
 #define STLINK_WRITE_TIMEOUT 1000
 #define STLINK_READ_TIMEOUT 1000
 
-#define STLINK_NULL_EP        0
 #define STLINK_RX_EP          (1|ENDPOINT_IN)
 #define STLINK_TX_EP          (2|ENDPOINT_OUT)
 #define STLINK_TRACE_EP       (3|ENDPOINT_IN)
@@ -834,7 +833,7 @@ static int stlink_cmd_allow_retry(void *handle, const uint8_t *buf, int size)
 
                res = stlink_usb_error_check(handle);
                if (res == ERROR_WAIT && retries < MAX_WAIT_RETRIES) {
-                       useconds_t delay_us = (1<<retries++) * 1000;
+                       unsigned int delay_us = (1<<retries++) * 1000;
                        LOG_DEBUG("stlink_cmd_allow_retry ERROR_WAIT, retry %d, delaying %u microseconds", retries, delay_us);
                        usleep(delay_us);
                        continue;
@@ -1251,7 +1250,8 @@ static int stlink_usb_mode_leave(void *handle, enum stlink_mode type)
 
        assert(handle != NULL);
 
-       stlink_usb_init_buffer(handle, STLINK_NULL_EP, 0);
+       /* command with no reply, use a valid endpoint but zero size */
+       stlink_usb_init_buffer(handle, h->rx_ep, 0);
 
        switch (type) {
                case STLINK_MODE_DEBUG_JTAG:
@@ -1272,7 +1272,7 @@ static int stlink_usb_mode_leave(void *handle, enum stlink_mode type)
                        return ERROR_FAIL;
        }
 
-       res = stlink_usb_xfer_noerrcheck(handle, 0, 0);
+       res = stlink_usb_xfer_noerrcheck(handle, h->databuf, 0);
 
        if (res != ERROR_OK)
                return res;