* (C) Copyright 1999-2001 Johannes Erdfelt
*/
-#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/debugfs.h>
#include <linux/smp_lock.h>
#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
out += sprintf(out, "%s%s", ptype, (urbp->fsbr ? " FSBR" : ""));
out += sprintf(out, " Actlen=%d", urbp->urb->actual_length);
- if (urbp->urb->status != -EINPROGRESS)
- out += sprintf(out, " Status=%d", urbp->urb->status);
+ if (urbp->urb->unlinked)
+ out += sprintf(out, " Unlinked=%d", urbp->urb->unlinked);
out += sprintf(out, "\n");
i = nactive = ninactive = 0;
return out - buf;
}
-static int uhci_show_qh(struct uhci_qh *qh, char *buf, int len, int space)
+static int uhci_show_qh(struct uhci_hcd *uhci,
+ struct uhci_qh *qh, char *buf, int len, int space)
{
char *out = buf;
int i, nurbs;
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, "");
if (list_empty(&qh->queue)) {
out += sprintf(out, "%*s queue is empty\n", space, "");
+ if (qh == uhci->skel_async_qh)
+ out += uhci_show_td(uhci->term_td, out,
+ len - (out - buf), 0);
} else {
struct urb_priv *urbp = list_entry(qh->queue.next,
struct urb_priv, node);
struct uhci_td *td = list_entry(urbp->td_list.next,
struct uhci_td, list);
- if (cpu_to_le32(td->dma_handle) != (element & ~UHCI_PTR_BITS))
+ if (element != LINK_TO_TD(td))
out += sprintf(out, "%*s Element != First TD\n",
space, "");
i = nurbs = 0;
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);
}
return out - buf;
}
-static const char * const qh_names[] = {
- "skel_unlink_qh", "skel_iso_qh",
- "skel_int128_qh", "skel_int64_qh",
- "skel_int32_qh", "skel_int16_qh",
- "skel_int8_qh", "skel_int4_qh",
- "skel_int2_qh", "skel_int1_qh",
- "skel_ls_control_qh", "skel_fs_control_qh",
- "skel_bulk_qh", "skel_term_qh"
-};
-
static int uhci_show_sc(int port, unsigned short status, char *buf, int len)
{
char *out = buf;
struct uhci_qh *qh;
struct uhci_td *td;
struct list_head *tmp, *head;
+ int nframes, nerrs;
+ __le32 link;
+ __le32 fsbr_link;
+
+ static const char * const qh_names[] = {
+ "unlink", "iso", "int128", "int64", "int32", "int16",
+ "int8", "int4", "int2", "async", "term"
+ };
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 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 (link != LINK_TO_TD(td)) {
+ 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");
+ fsbr_link = 0;
for (i = 0; i < UHCI_NUM_SKELQH; ++i) {
int cnt = 0;
qh = uhci->skelqh[i];
- out += sprintf(out, "- %s\n", qh_names[i]); \
- out += uhci_show_qh(qh, out, len - (out - buf), 4);
+ out += sprintf(out, "- skel_%s_qh\n", qh_names[i]); \
+ out += uhci_show_qh(uhci, qh, out, len - (out - buf), 4);
/* Last QH is the Terminating QH, it's different */
- if (i == UHCI_NUM_SKELQH - 1) {
- if (qh->link != UHCI_PTR_TERM)
- out += sprintf(out, " bandwidth reclamation on!\n");
-
- if (qh_element(qh) != cpu_to_le32(uhci->term_td->dma_handle))
+ if (i == SKEL_TERM) {
+ if (qh_element(qh) != LINK_TO_TD(uhci->term_td))
out += sprintf(out, " skel_term_qh element is not set to term_td!\n");
-
- continue;
+ link = fsbr_link;
+ if (!link)
+ link = LINK_TO_QH(uhci->skel_term_qh);
+ goto check_qh_link;
}
- j = (i < 9) ? 9 : i+1; /* Next skeleton */
head = &qh->node;
tmp = head->next;
qh = list_entry(tmp, struct uhci_qh, node);
tmp = tmp->next;
if (++cnt <= 10)
- out += uhci_show_qh(qh, out,
+ out += uhci_show_qh(uhci, qh, out,
len - (out - buf), 4);
+ if (!fsbr_link && qh->skel >= SKEL_FSBR)
+ fsbr_link = LINK_TO_QH(qh);
}
if ((cnt -= 10) > 0)
out += sprintf(out, " Skipped %d QHs\n", cnt);
- if (i > 1 && i < UHCI_NUM_SKELQH - 1) {
- if (qh->link !=
- (cpu_to_le32(uhci->skelqh[j]->dma_handle) | UHCI_PTR_QH))
- out += sprintf(out, " last QH not linked to next skeleton!\n");
- }
+ link = UHCI_PTR_TERM;
+ if (i <= SKEL_ISO)
+ ;
+ else if (i < SKEL_ASYNC)
+ link = LINK_TO_QH(uhci->skel_async_qh);
+ else if (!uhci->fsbr_is_on)
+ ;
+ else
+ link = LINK_TO_QH(uhci->skel_term_qh);
+check_qh_link:
+ if (qh->link != link)
+ out += sprintf(out, " last QH not linked to next skeleton!\n");
}
return out - buf;
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;
}
#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,
static inline void lprintk(char *buf)
{}
-static inline int uhci_show_qh(struct uhci_qh *qh, char *buf,
- int len, int space)
+static inline int uhci_show_qh(struct uhci_hcd *uhci,
+ struct uhci_qh *qh, char *buf, int len, int space)
{
return 0;
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff