From e2e1a00b1595b4930b86e3ba3ea2e9b771a79653 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:27:07 +0200
Subject: Adding upstream version 1:014.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 usbhid-dump/src/dev_list.c | 125 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 usbhid-dump/src/dev_list.c

(limited to 'usbhid-dump/src/dev_list.c')

diff --git a/usbhid-dump/src/dev_list.c b/usbhid-dump/src/dev_list.c
new file mode 100644
index 0000000..9848902
--- /dev/null
+++ b/usbhid-dump/src/dev_list.c
@@ -0,0 +1,125 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * usbhid-dump - device list
+ *
+ * Copyright (C) 2010 Nikolai Kondrashov <spbnick@gmail.com>
+ */
+
+#include "config.h"
+
+#include "misc.h"
+#include "dev_list.h"
+#include <assert.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+bool
+uhd_dev_list_valid(const uhd_dev *list)
+{
+    UHD_DEV_LIST_FOR_EACH(list, list)
+        if (!uhd_dev_valid(list))
+            return false;
+
+    return true;
+}
+
+
+void
+uhd_dev_list_close(uhd_dev *list)
+{
+    uhd_dev *next;
+
+    for (; list != NULL; list = next)
+    {
+        next = list->next;
+        uhd_dev_close(list);
+    }
+}
+
+
+enum libusb_error
+uhd_dev_list_open(libusb_context *ctx,
+                  uint8_t bus_num, uint8_t dev_addr,
+                  uint16_t vid, uint16_t pid,
+                  uhd_dev **plist)
+{
+    enum libusb_error                   err         = LIBUSB_ERROR_OTHER;
+    libusb_device                     **lusb_list   = NULL;
+    ssize_t                             num;
+    ssize_t                             idx;
+    libusb_device                      *lusb_dev;
+    struct libusb_device_descriptor     desc;
+    uhd_dev                            *list        = NULL;
+    uhd_dev                            *dev;
+
+    assert(ctx != NULL);
+
+    /* Retrieve libusb device list */
+    num = libusb_get_device_list(ctx, &lusb_list);
+    if (num == LIBUSB_ERROR_NO_MEM)
+    {
+        err = num;
+        goto cleanup;
+    }
+
+    /* Find and open the devices */
+    for (idx = 0; idx < num; idx++)
+    {
+        lusb_dev = lusb_list[idx];
+
+        /* Skip devices not matching bus_num/dev_addr mask */
+        if ((bus_num != UHD_BUS_NUM_ANY &&
+             libusb_get_bus_number(lusb_dev) != bus_num) ||
+            (dev_addr != UHD_DEV_ADDR_ANY &&
+             libusb_get_device_address(lusb_dev) != dev_addr))
+            continue;
+
+        /* Skip devices not matching vendor/product mask */
+        if (vid != UHD_VID_ANY || pid != UHD_PID_ANY)
+        {
+            err = libusb_get_device_descriptor(lusb_dev, &desc);
+            if (err != LIBUSB_SUCCESS)
+                goto cleanup;
+
+            if ((vid != UHD_VID_ANY && vid != desc.idVendor) ||
+                (pid != UHD_PID_ANY && pid != desc.idProduct))
+                continue;
+        }
+
+        /* Open and append the device to the list */
+        err = uhd_dev_open(lusb_dev, &dev);
+        if (err != LIBUSB_SUCCESS)
+            goto cleanup;
+
+        dev->next = list;
+        list = dev;
+    }
+
+    /* Free the libusb device list freeing unused devices */
+    libusb_free_device_list(lusb_list, true);
+    lusb_list = NULL;
+
+    /* Output device list, if requested */
+    assert(uhd_dev_list_valid(list));
+    if (plist != NULL)
+    {
+        *plist = list;
+        list = NULL;
+    }
+
+    /* Done! */
+    err = LIBUSB_SUCCESS;
+
+cleanup:
+
+    /* Close the device list if not output */
+    uhd_dev_list_close(list);
+
+    /* Free the libusb device list along with devices */
+    if (lusb_list != NULL)
+        libusb_free_device_list(lusb_list, true);
+
+    return err;
+}
+
+
-- 
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