diff options
Diffstat (limited to 'src/jtag/jlink.c')
| -rw-r--r-- | src/jtag/jlink.c | 49 |
1 files changed, 18 insertions, 31 deletions
diff --git a/src/jtag/jlink.c b/src/jtag/jlink.c index 9b5a6954..5c3dbbe7 100644 --- a/src/jtag/jlink.c +++ b/src/jtag/jlink.c @@ -859,15 +859,17 @@ static int jlink_usb_message(jlink_jtag_t *jlink_jtag, int out_length, int in_le } } -static int usb_bulk_write_ex(usb_dev_handle *dev, int ep, char *bytes, int size, - int timeout) { - +/* calls the given usb_bulk_* function, allowing for the data to trickle in with some timeouts */ +static int usb_bulk_with_retries( + int (*f)(usb_dev_handle *, int, char *, int, int), + usb_dev_handle *dev, int ep, + char *bytes, int size, int timeout) +{ int rc = 0, tries = 3, this_size; while (tries && size) { - this_size = usb_bulk_write (dev, ep, bytes, size, timeout); - + this_size = f(dev, ep, bytes, size, timeout); if (this_size > 0) { size -= this_size; @@ -877,35 +879,20 @@ static int usb_bulk_write_ex(usb_dev_handle *dev, int ep, char *bytes, int size, } else tries --; } - return rc; - - } - -static int usb_bulk_read_ex(usb_dev_handle *dev, int ep, char *bytes, int size, - int timeout) { - - int rc = 0, tries = 3, this_size; - - while (tries && size) { - - this_size = usb_bulk_read (dev, ep, bytes, size, timeout); - - if (this_size > 0) { - - size -= this_size; - rc += this_size; - bytes += this_size; - - } else - tries --; - } - - return rc; - +static inline int usb_bulk_write_ex(usb_dev_handle *dev, int ep, + char *bytes, int size, int timeout) +{ + return usb_bulk_with_retries(&usb_bulk_write, + dev, ep, bytes, size, timeout); +} +static inline int usb_bulk_read_ex(usb_dev_handle *dev, int ep, + char *bytes, int size, int timeout) +{ + return usb_bulk_with_retries(&usb_bulk_read, + dev, ep, bytes, size, timeout); } - /* Write data from out_buffer to USB. */ static int jlink_usb_write(jlink_jtag_t *jlink_jtag, int out_length) |