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Diffstat (limited to 'tools/usb/ffs-aio-example/multibuff/host_app/test.c')
-rw-r--r--tools/usb/ffs-aio-example/multibuff/host_app/test.c146
1 files changed, 146 insertions, 0 deletions
diff --git a/tools/usb/ffs-aio-example/multibuff/host_app/test.c b/tools/usb/ffs-aio-example/multibuff/host_app/test.c
new file mode 100644
index 000000000000..b0ad8747d03f
--- /dev/null
+++ b/tools/usb/ffs-aio-example/multibuff/host_app/test.c
@@ -0,0 +1,146 @@
+#include <libusb.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#define VENDOR 0x1d6b
+#define PRODUCT 0x0105
+
+/* endpoints indexes */
+
+#define EP_BULK_IN (1 | LIBUSB_ENDPOINT_IN)
+#define EP_BULK_OUT (2 | LIBUSB_ENDPOINT_OUT)
+
+#define BUF_LEN 8192
+
+/*
+ * struct test_state - describes test program state
+ * @list: list of devices returned by libusb_get_device_list function
+ * @found: pointer to struct describing tested device
+ * @ctx: context, set to NULL
+ * @handle: handle of tested device
+ * @attached: indicates that device was attached to kernel, and has to be
+ * reattached at the end of test program
+ */
+
+struct test_state {
+ libusb_device *found;
+ libusb_context *ctx;
+ libusb_device_handle *handle;
+ int attached;
+};
+
+/*
+ * test_init - initialize test program
+ */
+
+int test_init(struct test_state *state)
+{
+ int i, ret;
+ ssize_t cnt;
+ libusb_device **list;
+
+ state->found = NULL;
+ state->ctx = NULL;
+ state->handle = NULL;
+ state->attached = 0;
+
+ ret = libusb_init(&state->ctx);
+ if (ret) {
+ printf("cannot init libusb: %s\n", libusb_error_name(ret));
+ return 1;
+ }
+
+ cnt = libusb_get_device_list(state->ctx, &list);
+ if (cnt <= 0) {
+ printf("no devices found\n");
+ goto error1;
+ }
+
+ for (i = 0; i < cnt; ++i) {
+ libusb_device *dev = list[i];
+ struct libusb_device_descriptor desc;
+ ret = libusb_get_device_descriptor(dev, &desc);
+ if (ret) {
+ printf("unable to get device descriptor: %s\n",
+ libusb_error_name(ret));
+ goto error2;
+ }
+ if (desc.idVendor == VENDOR && desc.idProduct == PRODUCT) {
+ state->found = dev;
+ break;
+ }
+ }
+
+ if (!state->found) {
+ printf("no devices found\n");
+ goto error2;
+ }
+
+ ret = libusb_open(state->found, &state->handle);
+ if (ret) {
+ printf("cannot open device: %s\n", libusb_error_name(ret));
+ goto error2;
+ }
+
+ if (libusb_claim_interface(state->handle, 0)) {
+ ret = libusb_detach_kernel_driver(state->handle, 0);
+ if (ret) {
+ printf("unable to detach kernel driver: %s\n",
+ libusb_error_name(ret));
+ goto error3;
+ }
+ state->attached = 1;
+ ret = libusb_claim_interface(state->handle, 0);
+ if (ret) {
+ printf("cannot claim interface: %s\n",
+ libusb_error_name(ret));
+ goto error4;
+ }
+ }
+
+ return 0;
+
+error4:
+ if (state->attached == 1)
+ libusb_attach_kernel_driver(state->handle, 0);
+
+error3:
+ libusb_close(state->handle);
+
+error2:
+ libusb_free_device_list(list, 1);
+
+error1:
+ libusb_exit(state->ctx);
+ return 1;
+}
+
+/*
+ * test_exit - cleanup test program
+ */
+
+void test_exit(struct test_state *state)
+{
+ libusb_release_interface(state->handle, 0);
+ if (state->attached == 1)
+ libusb_attach_kernel_driver(state->handle, 0);
+ libusb_close(state->handle);
+ libusb_exit(state->ctx);
+}
+
+int main(void)
+{
+ struct test_state state;
+
+ if (test_init(&state))
+ return 1;
+
+ while (1) {
+ static unsigned char buffer[BUF_LEN];
+ int bytes;
+ libusb_bulk_transfer(state.handle, EP_BULK_IN, buffer, BUF_LEN,
+ &bytes, 500);
+ }
+ test_exit(&state);
+}