From 1a23c27e71edc61acb2425f237a14ca0f90e7a5e Mon Sep 17 00:00:00 2001
From: Harald Welte <laforge@gnumonks.org>
Date: Thu, 1 Dec 2011 21:32:04 +0100
Subject: import usb-benchmark-project

this can be used to measure the net USB throughput of a given atmel
microcontroller.
---
 usb-benchmark-project/benchm_drv.c | 51 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 usb-benchmark-project/benchm_drv.c

(limited to 'usb-benchmark-project/benchm_drv.c')

diff --git a/usb-benchmark-project/benchm_drv.c b/usb-benchmark-project/benchm_drv.c
new file mode 100644
index 0000000..c6295f0
--- /dev/null
+++ b/usb-benchmark-project/benchm_drv.c
@@ -0,0 +1,51 @@
+#include <stdlib.h>
+#include <stdint.h>
+#include <board.h>
+#include <utility/trace.h>
+
+#include <usb/common/core/USBGenericRequest.h>
+#include <usb/device/core/USBD.h>
+#include <usb/device/core/USBDDriver.h>
+#include <usb/device/core/USBDDriverDescriptors.h>
+#include <usb/device/core/USBDCallbacks.h>
+
+
+extern const USBDDriverDescriptors usb_perf_driver_desc;
+
+static unsigned char driver_interfaces[3];
+static USBDDriver benchm_driver;
+
+
+/* call-back for control EP requests from the host */
+void USBDCallbacks_RequestReceived(const USBGenericRequest *req)
+{
+	/* forward all (other) requests to core */
+	USBDDriver_RequestHandler(&benchm_driver, req);
+}
+
+void benchmark_drv_init(void)
+{
+	USBDDriver_Initialize(&benchm_driver, &usb_perf_driver_desc,
+				driver_interfaces);
+	USBD_Init();
+}
+
+const uint8_t test_data[2048];
+
+static void wr_compl_cb(void *arg, unsigned char status, unsigned int transferred, unsigned int remain)
+{
+	uint8_t epnr = arg;
+
+	/* re-start */
+	if (status == 0 && remain == 0) {
+		//printf(".");
+		benchmark_start(epnr);
+	} else
+		printf("Err: EP%u wr_compl, status 0x%02u, xfr %u, remain %u\r\n",
+			epnr, status, transferred, remain);
+}
+
+void benchmark_start(uint8_t epnr)
+{
+	USBD_Write(epnr, &test_data, sizeof(test_data), wr_compl_cb, epnr);
+}
-- 
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