import ccid-control - small hack to send CCID USB control requests
Change-Id: I7d6cf32e91dfd9974d2e28f13a2b062e07d17d6c
diff --git a/contrib/ccid-control.c b/contrib/ccid-control.c
new file mode 100644
index 0000000..378828a
--- /dev/null
+++ b/contrib/ccid-control.c
@@ -0,0 +1,84 @@
+/* CCID Control program
+ * - quick hack used to send CCID control transfers to a CCID device
+ *
+ * (C) 2019-2020 by Harald Welte <laforge@gnumonks.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
+ */
+
+
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <libusb-1.0/libusb.h>
+
+static libusb_context *g_uctx;
+static uint16_t g_vendor_id = 0x2342;
+static uint16_t g_product_id = 0x2342;
+static uint8_t g_interface = 0;
+
+#define GET_CLOCK_FREQS 0x02
+#define GET_DATA_RATES 0x03
+
+static int usb_ctrl_get_dwords(libusb_device_handle *devh, uint8_t req_t, uint8_t rq,
+ uint16_t val, uint16_t index, unsigned int num_dword)
+{
+ uint32_t buf[num_dword];
+ unsigned int i;
+ int rc;
+
+ rc = libusb_control_transfer(devh, req_t, rq, val, index, (uint8_t *)buf, sizeof(buf), 1000);
+ if (rc < 0) {
+ printf("control_transfer: %s\n", libusb_strerror(rc));
+ return rc;
+ }
+
+ for (i = 0; i < num_dword; i++)
+ printf("\t%u\n", buf[i]);
+
+ return 0;
+}
+
+
+int main(int argc, char **argv)
+{
+ libusb_device_handle *devh;
+ int rc;
+
+ rc = libusb_init(&g_uctx);
+ if (rc < 0) {
+ fprintf(stderr, "Cannot init libusb\n");
+ exit(1);
+ }
+
+ devh = libusb_open_device_with_vid_pid(g_uctx, g_vendor_id, g_product_id);
+ if (!devh) {
+ fprintf(stderr, "Cannot open usb device %04x:%04x\n", g_vendor_id, g_product_id);
+ exit(1);
+ }
+
+ printf("Clock Frequencies:\n");
+ usb_ctrl_get_dwords(devh, 0xA1, GET_CLOCK_FREQS, 0, g_interface, 1);
+ printf("\n");
+
+ printf("Data Rates\n");
+ usb_ctrl_get_dwords(devh, 0xA1, GET_DATA_RATES, 0, g_interface, 1);
+ printf("\n");
+
+ libusb_close(devh);
+ exit(0);
+}
+