Changeset 6f53811 in mainline for uspace/lib/usb/src/dump.c

Timestamp:

2013-01-06T00:28:15Z (11 years ago)

Author:

Jan Vesely <jano.vesely@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

f3185a5

Parents:

1da979d

Message:

libusb: Implement hub descriptor dump.

File:

• uspace/lib/usb/src/dump.c (modified) (2 diffs)

uspace/lib/usb/src/dump.c

@@ -41 +41 @@
 #include <usb/descriptor.h>
 #include <usb/classes/classes.h>
+#include <usb/classes/hub.h>
 
 /** Mapping between descriptor id and dumping function. */
@@ -276 +277 @@
     const uint8_t *descriptor, size_t descriptor_length)
 {
-        /* TODO */
+        usb_hub_descriptor_header_t *d =
+            (usb_hub_descriptor_header_t *) descriptor;
+        if (descriptor_length < sizeof(d))
+                return;
+
+        PRINTLINE("bDescLength: = %d", d->length);
+        PRINTLINE("bDescriptorType = 0x%02x", d->descriptor_type);
+        PRINTLINE("bNbrPorts = %d", d->port_count);
+        PRINTLINE("bHubCharacteristics = 0x%02x%02x (%s;%s%s)",
+            d->characteristics_reserved, d->characteristics,
+            (d->characteristics & HUB_CHAR_NO_POWER_SWITCH_FLAG) ?
+                "No Power Switching" :
+                ((d->characteristics & HUB_CHAR_POWER_PER_PORT_FLAG) ?
+                    "Per-Port Switching" : "Ganged Power Switching"),
+            (d->characteristics & HUB_CHAR_COMPOUND_DEVICE) ?
+                "Compound Device;" : "",
+            (d->characteristics & HUB_CHAR_NO_OC_FLAG) ?
+                "No OC Protection" :
+                    ((d->characteristics & HUB_CHAR_OC_PER_PORT_FLAG) ?
+                        "Individual Port OC Protection" :
+                            "Global OC Protection")
+        );
+        PRINTLINE("bPwrOn2PwrGood = %d (%d ms)",
+            d->power_good_time, d->power_good_time * 2);
+        PRINTLINE("bHubContrCurrent = %d (%d mA)",
+            d->max_current, d->max_current);
+        const size_t port_bytes = (descriptor_length - sizeof(*d)) / 2;
+        const uint8_t *removable_mask = descriptor + sizeof(*d);
+        const uint8_t *powered_mask = descriptor + sizeof(*d) + port_bytes;
+
+        if (port_bytes == 0
+            || port_bytes > (((d->port_count / (unsigned)8) + 1) * 2)) {
+                PRINTLINE("::CORRUPTED DESCRIPTOR:: (%zu bytes remain)",
+                    port_bytes * 2);
+        }
+
+        fprintf(output, "%sDeviceRemovable = 0x",
+            line_prefix ? line_prefix : " - ");
+        for (unsigned i = port_bytes; i > 0; --i)
+                fprintf(output, "%02x", removable_mask[i - 1]);
+        fprintf(output, " (0b1 - Device non-removable)%s",
+            line_suffix ? line_suffix : "\n");
+
+        fprintf(output, "%sPortPwrCtrlMask = 0x",
+            line_prefix ? line_prefix : " - ");
+        for (unsigned i = port_bytes; i > 0; --i)
+                fprintf(output, "%02x", powered_mask[i - 1]);
+        fprintf(output, " (Legacy - All should be 0b1)%s",
+            line_suffix ? line_suffix : "\n");
 }