uint8_t *buffer = kitprog_handle->packet_buffer;
do {
- LOG_DEBUG("Executing %d queued transactions", pending_transfer_count);
+ LOG_DEBUG_IO("Executing %d queued transactions", pending_transfer_count);
if (queued_retval != ERROR_OK) {
LOG_DEBUG("Skipping due to previous errors: %d", queued_retval);
data &= ~CORUNDETECT;
}
-#if 0
- LOG_DEBUG("%s %s reg %x %"PRIx32,
+ LOG_DEBUG_IO("%s %s reg %x %"PRIx32,
cmd & SWD_CMD_APnDP ? "AP" : "DP",
cmd & SWD_CMD_RnW ? "read" : "write",
(cmd & SWD_CMD_A32) >> 1, data);
-#endif
buffer[write_count++] = (cmd | SWD_CMD_START | SWD_CMD_PARK) & ~SWD_CMD_STOP;
read_count++;
}
}
- ret = jtag_libusb_bulk_write(kitprog_handle->usb_handle,
- BULK_EP_OUT, (char *)buffer, write_count, 0);
- if (ret > 0) {
- queued_retval = ERROR_OK;
- } else {
+ if (jtag_libusb_bulk_write(kitprog_handle->usb_handle,
+ BULK_EP_OUT, (char *)buffer,
+ write_count, 0, &ret)) {
LOG_ERROR("Bulk write failed");
queued_retval = ERROR_FAIL;
break;
+ } else {
+ queued_retval = ERROR_OK;
}
- /* We use the maximum buffer size here because the KitProg sometimes
- * doesn't like bulk reads of fewer than 62 bytes. (?!?!)
+ /* KitProg firmware does not send a zero length packet
+ * after the bulk-in transmission of a length divisible by bulk packet
+ * size (64 bytes) as required by the USB specification.
+ * Therefore libusb would wait for continuation of transmission.
+ * Workaround: Limit bulk read size to expected number of bytes
+ * for problematic tranfer sizes. Otherwise use the maximum buffer
+ * size here because the KitProg sometimes doesn't like bulk reads
+ * of fewer than 62 bytes. (?!?!)
*/
- ret = jtag_libusb_bulk_read(kitprog_handle->usb_handle,
+ size_t read_count_workaround = SWD_MAX_BUFFER_LENGTH;
+ if (read_count % 64 == 0)
+ read_count_workaround = read_count;
+
+ if (jtag_libusb_bulk_read(kitprog_handle->usb_handle,
BULK_EP_IN | LIBUSB_ENDPOINT_IN, (char *)buffer,
- SWD_MAX_BUFFER_LENGTH, 0);
- if (ret > 0) {
+ read_count_workaround, 1000, &ret)) {
+ LOG_ERROR("Bulk read failed");
+ queued_retval = ERROR_FAIL;
+ break;
+ } else {
/* Handle garbage data by offsetting the initial read index */
if ((unsigned int)ret > read_count)
read_index = ret - read_count;
queued_retval = ERROR_OK;
- } else {
- LOG_ERROR("Bulk read failed");
- queued_retval = ERROR_FAIL;
- break;
}
for (int i = 0; i < pending_transfer_count; i++) {
if (pending_transfers[i].cmd & SWD_CMD_RnW) {
uint32_t data = le_to_h_u32(&buffer[read_index]);
-#if 0
- LOG_DEBUG("Read result: %"PRIx32, data);
-#endif
+ LOG_DEBUG_IO("Read result: %"PRIx32, data);
if (pending_transfers[i].buffer)
*(uint32_t *)pending_transfers[i].buffer = data;
/*************** jtag lowlevel functions ********************/
-static void kitprog_execute_reset(struct jtag_command *cmd)
+static int kitprog_reset(int trst, int srst)
{
int retval = ERROR_OK;
- if (cmd->cmd.reset->srst == 1) {
+ if (trst == 1) {
+ LOG_ERROR("KitProg: Interface has no TRST");
+ return ERROR_FAIL;
+ }
+
+ if (srst == 1) {
retval = kitprog_reset_target();
/* Since the previous command also disables SWCLK output, we need to send an
* SWD bus reset command to re-enable it. For some reason, running
if (retval != ERROR_OK)
LOG_ERROR("KitProg: Interface reset failed");
-}
-
-static void kitprog_execute_sleep(struct jtag_command *cmd)
-{
- jtag_sleep(cmd->cmd.sleep->us);
-}
-
-static void kitprog_execute_command(struct jtag_command *cmd)
-{
- switch (cmd->type) {
- case JTAG_RESET:
- kitprog_execute_reset(cmd);
- break;
- case JTAG_SLEEP:
- kitprog_execute_sleep(cmd);
- break;
- default:
- LOG_ERROR("BUG: unknown JTAG command type encountered");
- exit(-1);
- }
-}
-
-static int kitprog_execute_queue(void)
-{
- struct jtag_command *cmd = jtag_command_queue;
-
- while (cmd != NULL) {
- kitprog_execute_command(cmd);
- cmd = cmd->next;
- }
-
- return ERROR_OK;
+ return retval;
}
COMMAND_HANDLER(kitprog_handle_info_command)
COMMAND_HANDLER(kitprog_handle_serial_command)
{
if (CMD_ARGC == 1) {
- size_t len = strlen(CMD_ARGV[0]);
- kitprog_serial = calloc(len + 1, sizeof(char));
+ kitprog_serial = strdup(CMD_ARGV[0]);
if (kitprog_serial == NULL) {
LOG_ERROR("Failed to allocate memory for the serial number");
return ERROR_FAIL;
}
- strncpy(kitprog_serial, CMD_ARGV[0], len + 1);
} else {
LOG_ERROR("expected exactly one argument to kitprog_serial <serial-number>");
return ERROR_FAIL;
static const char * const kitprog_transports[] = { "swd", NULL };
-struct jtag_interface kitprog_interface = {
+struct adapter_driver kitprog_adapter_driver = {
.name = "kitprog",
- .commands = kitprog_command_handlers,
.transports = kitprog_transports,
- .swd = &kitprog_swd,
- .execute_queue = kitprog_execute_queue,
+ .commands = kitprog_command_handlers,
+
.init = kitprog_init,
- .quit = kitprog_quit
+ .quit = kitprog_quit,
+ .reset = kitprog_reset,
+
+ .swd_ops = &kitprog_swd,
};
projects / fw / openocd / blobdiff