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@@ -0,0 +1,146 @@
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+/*
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+ * Copyright 2012 Luke Dashjr
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the Free
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+ * Software Foundation; either version 3 of the License, or (at your option)
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+ * any later version. See COPYING for more details.
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+ */
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+
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+#include <libusb-1.0/libusb.h>
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+
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+#include "fpgautils.h"
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+#include "ft232r.h"
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+#include "logging.h"
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+#include "miner.h"
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+
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+#define FT232R_IDVENDOR 0x0403
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+#define FT232R_IDPRODUCT 0x6001
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+
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+struct ft232r_device_info {
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+ libusb_device *libusb_dev;
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+ char *product;
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+ char *serial;
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+};
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+
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+static struct ft232r_device_info **ft232r_devinfo_list;
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+
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+void ft232r_scan_free()
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+{
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+ if (!ft232r_devinfo_list)
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+ return;
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+
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+ struct ft232r_device_info *info;
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+
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+ for (struct ft232r_device_info **infop = ft232r_devinfo_list; (info = *infop); ++infop) {
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+ libusb_unref_device(info->libusb_dev);
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+ free(info->product);
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+ free(info->serial);
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+ free(info);
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+ }
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+ free(ft232r_devinfo_list);
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+ ft232r_devinfo_list = NULL;
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+}
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+
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+void ft232r_scan()
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+{
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+ ssize_t n, i, found = 0;
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+ libusb_device **list;
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+ struct libusb_device_descriptor desc;
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+ libusb_device_handle *handle;
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+ struct ft232r_device_info *info;
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+ int err;
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+ unsigned char buf[0x100];
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+
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+ ft232r_scan_free();
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+
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+ n = libusb_get_device_list(NULL, &list);
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+ if (unlikely(n < 0)) {
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+ applog(LOG_ERR, "ft232r scan: Error getting USB device list: %s", libusb_error_name(n));
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+ ft232r_devinfo_list = calloc(1, sizeof(struct ft232r_device_info *));
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+ return;
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+ }
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+
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+ ft232r_devinfo_list = malloc(sizeof(struct ft232r_device_info *) * (n + 1));
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+
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+ for (i = 0; i < n; ++i) {
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+ err = libusb_get_device_descriptor(list[i], &desc);
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+ if (unlikely(err)) {
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+ applog(LOG_ERR, "ft232r scan: Error getting device descriptor: %s", libusb_error_name(err));
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+ continue;
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+ }
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+ if (!(desc.idVendor == FT232R_IDVENDOR && desc.idProduct == FT232R_IDPRODUCT))
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+ continue;
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+
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+ err = libusb_open(list[i], &handle);
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+ if (unlikely(err)) {
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+ applog(LOG_ERR, "ft232r scan: Error opening device: %s", libusb_error_name(err));
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+ continue;
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+ }
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+
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+ n = libusb_get_string_descriptor_ascii(handle, desc.iProduct, buf, sizeof(buf)-1);
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+ if (unlikely(n < 0)) {
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+ libusb_close(handle);
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+ applog(LOG_ERR, "ft232r scan: Error getting iProduct string: %s", libusb_error_name(n));
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+ continue;
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+ }
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+ buf[n] = '\0';
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+ info = malloc(sizeof(struct ft232r_device_info));
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+ info->product = strdup((char*)buf);
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+
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+ n = libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, buf, sizeof(buf)-1);
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+ libusb_close(handle);
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+ if (unlikely(n < 0)) {
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+ applog(LOG_ERR, "ft232r scan: Error getting iSerialNumber string: %s", libusb_error_name(n));
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+ n = 0;
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+ }
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+ buf[n] = '\0';
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+ info->serial = strdup((char*)buf);
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+ info->libusb_dev = libusb_ref_device(list[i]);
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+ ft232r_devinfo_list[found++] = info;
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+
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+ applog(LOG_DEBUG, "ft232r scan: Found \"%s\" serial \"%s\"", info->product, info->serial);
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+ }
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+
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+ ft232r_devinfo_list[found] = NULL;
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+ libusb_free_device_list(list, 1);
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+}
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+
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+int ft232r_detect(const char *product_needle, const char *serial, foundusb_func_t cb)
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+{
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+ struct ft232r_device_info *info;
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+ int found = 0;
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+
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+ for (struct ft232r_device_info **infop = ft232r_devinfo_list; (info = *infop); ++infop) {
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+ if (!strstr(info->product, product_needle))
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+ continue;
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+ if (serial && strcmp(serial, info->serial))
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+ continue;
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+ if (!info->libusb_dev)
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+ continue;
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+ if (!cb(info->libusb_dev, info->product, info->serial))
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+ continue;
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+ info->libusb_dev = NULL;
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+ ++found;
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+ }
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+
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+ return found;
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+}
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+
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+#if 0
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+int main() {
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+ libusb_init(NULL);
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+ ft232r_scan();
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+ ft232r_scan_free();
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+ libusb_exit(NULL);
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+}
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+void applog(int prio, const char *fmt, ...)
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+{
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+ va_list ap;
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+
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+ va_start(ap, fmt);
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+ vprintf(fmt, ap);
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+ puts("");
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+ va_end(ap);
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+}
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+#endif
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Luke Dashjr