Adding a tool I use frequently to quickly decode UHCI status values.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@32827 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/tests/add-ons/kernel/busses/Jamfile

@@ -1,3 +1,4 @@
 SubDir HAIKU_TOP src tests add-ons kernel busses ;
 
 SubInclude HAIKU_TOP src tests add-ons kernel busses scsi ;
+SubInclude HAIKU_TOP src tests add-ons kernel busses usb ;

src/tests/add-ons/kernel/busses/usb/Jamfile

@@ -0,0 +1,3 @@
+SubDir HAIKU_TOP src tests add-ons kernel busses usb ;
+
+SimpleTest uhci_decode : uhci_decode.cpp ;

src/tests/add-ons/kernel/busses/usb/uhci_decode.cpp

@@ -0,0 +1,54 @@
+#include <stdio.h>
+#include <SupportDefs.h>
+
+struct uhci_td_control_status {
+	uint32	actual_length : 11;
+	uint32	reserved_1 : 6;
+	uint32	bitstuff_error : 1;
+	uint32	crc_timeout : 1;
+	uint32	nak_received : 1;
+	uint32	babble_detected : 1;
+	uint32	data_buffer_error : 1;
+	uint32	stalled : 1;
+	uint32	active : 1;
+	uint32	interrupt_on_complete : 1;
+	uint32	isochronous_select : 1;
+	uint32	low_speed_device : 1;
+	uint32	error_counter : 2;
+	uint32	short_packet_detect : 1;
+	uint32	reserved_2 : 2;
+};
+
+
+int
+main(int argc, char *argv[])
+{
+	if (argc < 2)
+		return 1;
+
+	uint32 value;
+	if (sscanf(argv[1], "%lx", &value) != 1)
+		return 2;
+
+	uhci_td_control_status status;
+	memcpy(&status, &value, sizeof(status));
+
+	printf("value: 0x%08lx\n", value);
+	printf("actual_length: %ld\n", status.actual_length);
+	printf("reserved_1: %ld\n", status.reserved_1);
+	printf("bitstuff_error: %ld\n", status.bitstuff_error);
+	printf("crc_timeout: %ld\n", status.crc_timeout);
+	printf("nak_received: %ld\n", status.nak_received);
+	printf("babble_detected: %ld\n", status.babble_detected);
+	printf("data_buffer_error: %ld\n", status.data_buffer_error);
+	printf("stalled: %ld\n", status.stalled);
+	printf("active: %ld\n", status.active);
+	printf("interrupt_on_complete: %ld\n", status.interrupt_on_complete);
+	printf("isochronous_select: %ld\n", status.isochronous_select);
+	printf("low_speed_device: %ld\n", status.low_speed_device);
+	printf("error_counter: %ld\n", status.error_counter);
+	printf("short_packet_detect: %ld\n", status.short_packet_detect);
+	printf("reserved_2: %ld\n", status.reserved_2);
+
+	return 0;
+}