Merge branch 'upstream' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wirel...

[sfrench/cifs-2.6.git] / drivers / usb / host / uhci-debug.c

diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index dc286a48cafdeba4d687069a294a94d2980e47d1..5d6c06bc4524f10c1356583aedfad58396ecb66c 100644 (file)
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -16,7 +16,7 @@
 
 #include "uhci-hcd.h"
 
-#define uhci_debug_operations (* (struct file_operations *) NULL)
+#define uhci_debug_operations (* (const struct file_operations *) NULL)
 static struct dentry *uhci_debugfs_root;
 
 #ifdef DEBUG
@@ -168,9 +168,13 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
                        space, "", qh, qtype,
                        le32_to_cpu(qh->link), le32_to_cpu(element));
        if (qh->type == USB_ENDPOINT_XFER_ISOC)
-               out += sprintf(out, "%*s    period %d frame %x desc [%p]\n",
-                               space, "", qh->period, qh->iso_frame,
-                               qh->iso_packet_desc);
+               out += sprintf(out, "%*s    period %d phase %d load %d us, "
+                               "frame %x desc [%p]\n",
+                               space, "", qh->period, qh->phase, qh->load,
+                               qh->iso_frame, qh->iso_packet_desc);
+       else if (qh->type == USB_ENDPOINT_XFER_INT)
+               out += sprintf(out, "%*s    period %d phase %d load %d us\n",
+                               space, "", qh->period, qh->phase, qh->load);
 
        if (element & UHCI_PTR_QH)
                out += sprintf(out, "%*s  Element points to QH (bug?)\n", space, "");
@@ -208,7 +212,7 @@ static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
                                        space, "", nurbs);
        }
 
-       if (qh->udev) {
+       if (qh->dummy_td) {
                out += sprintf(out, "%*s  Dummy TD\n", space, "");
                out += uhci_show_td(qh->dummy_td, out, len - (out - buf), 0);
        }
@@ -347,31 +351,80 @@ static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len)
        struct uhci_qh *qh;
        struct uhci_td *td;
        struct list_head *tmp, *head;
+       int nframes, nerrs;
 
        out += uhci_show_root_hub_state(uhci, out, len - (out - buf));
        out += sprintf(out, "HC status\n");
        out += uhci_show_status(uhci, out, len - (out - buf));
+
+       out += sprintf(out, "Periodic load table\n");
+       for (i = 0; i < MAX_PHASE; ++i) {
+               out += sprintf(out, "\t%d", uhci->load[i]);
+               if (i % 8 == 7)
+                       *out++ = '\n';
+       }
+       out += sprintf(out, "Total: %d, #INT: %d, #ISO: %d\n",
+                       uhci->total_load,
+                       uhci_to_hcd(uhci)->self.bandwidth_int_reqs,
+                       uhci_to_hcd(uhci)->self.bandwidth_isoc_reqs);
        if (debug <= 1)
                return out - buf;
 
        out += sprintf(out, "Frame List\n");
+       nframes = 10;
+       nerrs = 0;
        for (i = 0; i < UHCI_NUMFRAMES; ++i) {
+               __le32 link, qh_dma;
+
+               j = 0;
                td = uhci->frame_cpu[i];
+               link = uhci->frame[i];
                if (!td)
-                       continue;
+                       goto check_link;
 
-               out += sprintf(out, "- Frame %d\n", i); \
-               if (td->dma_handle != (dma_addr_t)uhci->frame[i])
-                       out += sprintf(out, "    frame list does not match td->dma_handle!\n");
+               if (nframes > 0) {
+                       out += sprintf(out, "- Frame %d -> (%08x)\n",
+                                       i, le32_to_cpu(link));
+                       j = 1;
+               }
 
                head = &td->fl_list;
                tmp = head;
                do {
                        td = list_entry(tmp, struct uhci_td, fl_list);
                        tmp = tmp->next;
-                       out += uhci_show_td(td, out, len - (out - buf), 4);
+                       if (cpu_to_le32(td->dma_handle) != link) {
+                               if (nframes > 0)
+                                       out += sprintf(out, "    link does "
+                                               "not match list entry!\n");
+                               else
+                                       ++nerrs;
+                       }
+                       if (nframes > 0)
+                               out += uhci_show_td(td, out,
+                                               len - (out - buf), 4);
+                       link = td->link;
                } while (tmp != head);
+
+check_link:
+               qh_dma = uhci_frame_skel_link(uhci, i);
+               if (link != qh_dma) {
+                       if (nframes > 0) {
+                               if (!j) {
+                                       out += sprintf(out,
+                                               "- Frame %d -> (%08x)\n",
+                                               i, le32_to_cpu(link));
+                                       j = 1;
+                               }
+                               out += sprintf(out, "   link does not match "
+                                       "QH (%08x)!\n", le32_to_cpu(qh_dma));
+                       } else
+                               ++nerrs;
+               }
+               nframes -= j;
        }
+       if (nerrs > 0)
+               out += sprintf(out, "Skipped %d bad links\n", nerrs);
 
        out += sprintf(out, "Skeleton QHs\n");
 
@@ -428,7 +481,7 @@ struct uhci_debug {
 
 static int uhci_debug_open(struct inode *inode, struct file *file)
 {
-       struct uhci_hcd *uhci = inode->u.generic_ip;
+       struct uhci_hcd *uhci = inode->i_private;
        struct uhci_debug *up;
        int ret = -ENOMEM;
        unsigned long flags;
@@ -500,7 +553,7 @@ static int uhci_debug_release(struct inode *inode, struct file *file)
 }
 
 #undef uhci_debug_operations
-static struct file_operations uhci_debug_operations = {
+static const struct file_operations uhci_debug_operations = {
        .owner =        THIS_MODULE,
        .open =         uhci_debug_open,
        .llseek =       uhci_debug_lseek,