/*
- * OHCI HCD (Host Controller Driver) for USB.
+ * ADM5120 HCD (Host Controller Driver) for USB
*
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
+ * Copyright (C) 2007,2008 Gabor Juhos <juhosg at openwrt.org>
+ *
+ * This file was derived from: drivers/usb/host/ohci-dbg.c
+ * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
+ * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
*
- * This file is licenced under the GPL.
*/
/*-------------------------------------------------------------------------*/
return "UNLINK";
case ED_OPER:
return "OPER";
- case ED_NEW:
- return "NEW";
}
return "?STATE";
}
return "?TOGGLE";
}
+/*-------------------------------------------------------------------------*/
+
#ifdef DEBUG
/* debug| print the main components of an URB
* small: 0) header + data packets 1) just header
*/
static void __attribute__((unused))
-urb_print(struct admhcd *ahcd, struct urb * urb, char * str, int small)
+urb_print(struct admhcd *ahcd, struct urb *urb, char *str, int small)
{
unsigned int pipe = urb->pipe;
"stat=%d\n",
str,
urb,
- usb_pipedevice(pipe),
- usb_pipeendpoint(pipe),
+ usb_pipedevice (pipe),
+ usb_pipeendpoint (pipe),
usb_pipeout(pipe)? "out" : "in",
pipestring(pipe),
urb->transfer_flags,
int i, len;
if (usb_pipecontrol(pipe)) {
- admhc_dbg(admhc, "setup(8): ");
+ admhc_dbg(ahcd, "setup(8):");
for (i = 0; i < 8 ; i++)
printk (" %02x", ((__u8 *) urb->setup_packet) [i]);
printk ("\n");
}
if (urb->transfer_buffer_length > 0 && urb->transfer_buffer) {
- admhc_dbg(admhc, "data(%d/%d): ",
+ admhc_dbg(ahcd, "data(%d/%d):",
urb->actual_length,
urb->transfer_buffer_length);
len = usb_pipeout(pipe)?
urb->transfer_buffer_length: urb->actual_length;
for (i = 0; i < 16 && i < len; i++)
- printk (" %02x", ((__u8 *) urb->transfer_buffer) [i]);
- printk ("%s stat:%d\n", i < len? "...": "", urb->status);
+ printk(" %02x", ((__u8 *)urb->transfer_buffer)[i]);
+ printk("%s stat:%d\n", i < len? "...": "", urb->status);
}
}
#endif /* ADMHC_VERBOSE_DEBUG */
(tmp & TD_IE) ? " IE" : "");
}
-static void admhc_dump_up(const struct admhcd *ahcd, const char *label,
- const struct urb_priv *up)
-{
- int i;
-
- admhc_dbg(ahcd, "%s urb/%p:\n", label, up->urb);
- for (i = 0; i < up->td_cnt; i++) {
- struct td *td = up->td[i];
- admhc_dump_td(ahcd, " ->", td);
- }
-}
-
/* caller MUST own hcd spinlock if verbose is set! */
static void __attribute__((unused))
admhc_dump_ed(const struct admhcd *ahcd, const char *label,
ED_FA_GET(tmp));
tmp = hc32_to_cpup(ahcd, &ed->hwHeadP);
- admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s\n",
+ admhc_dbg(ahcd, " tds: head %08x tail %08x %s%s%s\n",
tmp & TD_MASK,
- hc32_to_cpup(ahcd, &ed->hwTailP),
+ hc32_to_cpup (ahcd, &ed->hwTailP),
(tmp & ED_C) ? data1 : data0,
- (tmp & ED_H) ? " HALT" : "");
+ (tmp & ED_H) ? " HALT" : "",
+ verbose ? " td list follows" : " (not listing)");
- if (ed->urb_active)
- admhc_dump_up(ahcd, " active ", ed->urb_active);
-
- if ((verbose) && (!list_empty(&ed->urb_pending))) {
- struct list_head *entry;
- /* dump pending URBs */
- list_for_each(entry, &ed->urb_pending) {
- struct urb_priv *up;
- up = list_entry(entry, struct urb_priv, pending);
- admhc_dump_up(ahcd, " pending ", up);
+ if (verbose) {
+ struct list_head *tmp;
+
+ /* use ed->td_list because HC concurrently modifies
+ * hwNextTD as it accumulates ed_donelist.
+ */
+ list_for_each(tmp, &ed->td_list) {
+ struct td *td;
+ td = list_entry(tmp, struct td, td_list);
+ admhc_dump_td (ahcd, " ->", td);
}
}
}
#else /* ifdef DEBUG */
-static inline void urb_print(struct urb * urb, char * str, int small) {}
-static inline void admhc_dump_up(const struct admhcd *ahcd, const char *label,
- const struct urb_priv *up) {}
+static inline void urb_print(struct admhcd *ahcd, struct urb * urb, char * str,
+ int small) {}
static inline void admhc_dump_ed(const struct admhcd *ahcd, const char *label,
const struct ed *ed, int verbose) {}
static inline void admhc_dump_td(const struct admhcd *ahcd, const char *label,
#else
-static ssize_t
-show_urb_priv(struct admhcd *ahcd, char *buf, size_t count,
- struct urb_priv *up)
-{
- unsigned temp, size = count;
- int i;
-
- if (!up)
- return 0;
-
- temp = scnprintf(buf, size,"\n\turb %p ", up->urb);
- size -= temp;
- buf += temp;
-
- for (i = 0; i< up->td_cnt; i++) {
- struct td *td;
- u32 dbp, cbl, info;
-
- td = up->td[i];
- info = hc32_to_cpup(ahcd, &td->hwINFO);
- dbp = hc32_to_cpup(ahcd, &td->hwDBP);
- cbl = hc32_to_cpup(ahcd, &td->hwCBL);
-
- temp = scnprintf(buf, size,
- "\n\t\ttd %p %s %d %s%scc=%x (%08x,%08x)",
- td,
- td_pidstring(info),
- TD_BL_GET(cbl),
- (info & TD_OWN) ? "WORK " : "DONE ",
- (cbl & TD_IE) ? "IE " : "",
- TD_CC_GET(info), info, cbl);
- size -= temp;
- buf += temp;
- }
-
- return count - size;
-}
-
static ssize_t
show_list(struct admhcd *ahcd, char *buf, size_t count, struct ed *ed)
{
while (ed) {
u32 info = hc32_to_cpu(ahcd, ed->hwINFO);
u32 headp = hc32_to_cpu(ahcd, ed->hwHeadP);
+ u32 tailp = hc32_to_cpu(ahcd, ed->hwTailP);
+ struct list_head *entry;
+ struct td *td;
temp = scnprintf(buf, size,
- "ed/%p %s %cs dev%d ep%d %s%smax %d %08x%s%s %s",
+ "ed/%p %s %s %cs dev%d ep%d %s%smax %d %08x%s%s %s"
+ " h:%08x t:%08x",
ed,
+ ed_statestring(ed->state),
ed_typestring (ed->type),
(info & ED_SPEED_FULL) ? 'f' : 'l',
info & ED_FA_MASK,
info,
(info & ED_SKIP) ? " S" : "",
(headp & ED_H) ? " H" : "",
- (headp & ED_C) ? "DATA1" : "DATA0");
+ (headp & ED_C) ? data1 : data0,
+ headp & ED_MASK,tailp);
size -= temp;
buf += temp;
- if (ed->urb_active) {
- temp = scnprintf(buf, size, "\nactive urb:");
- size -= temp;
- buf += temp;
-
- temp = show_urb_priv(ahcd, buf, size, ed->urb_active);
+ list_for_each(entry, &ed->td_list) {
+ u32 dbp, cbl;
+
+ td = list_entry(entry, struct td, td_list);
+ info = hc32_to_cpup (ahcd, &td->hwINFO);
+ dbp = hc32_to_cpup (ahcd, &td->hwDBP);
+ cbl = hc32_to_cpup (ahcd, &td->hwCBL);
+
+ temp = scnprintf(buf, size,
+ "\n\ttd/%p %s %d %s%scc=%x urb %p (%08x,%08x)",
+ td,
+ td_pidstring(info),
+ TD_BL_GET(cbl),
+ (info & TD_OWN) ? "" : "DONE ",
+ (cbl & TD_IE) ? "IE " : "",
+ TD_CC_GET (info), td->urb, info, cbl);
size -= temp;
buf += temp;
}
- if (!list_empty(&ed->urb_pending)) {
- struct list_head *entry;
-
- temp = scnprintf(buf, size, "\npending urbs:");
- size -= temp;
- buf += temp;
-
- list_for_each(entry, &ed->urb_pending) {
- struct urb_priv *up;
- up = list_entry(entry, struct urb_priv,
- pending);
-
- temp = show_urb_priv(ahcd, buf, size, up);
- size -= temp;
- buf += temp;
- }
- }
-
temp = scnprintf(buf, size, "\n");
size -= temp;
buf += temp;
ed = ed->ed_next;
}
-
return count - size;
}
}
static CLASS_DEVICE_ATTR(async, S_IRUGO, show_async, NULL);
+
+#define DBG_SCHED_LIMIT 64
+
+static ssize_t
+show_periodic(struct class_device *class_dev, char *buf)
+{
+ struct usb_bus *bus;
+ struct usb_hcd *hcd;
+ struct admhcd *ahcd;
+ struct ed **seen, *ed;
+ unsigned long flags;
+ unsigned temp, size, seen_count;
+ char *next;
+ unsigned i;
+
+ if (!(seen = kmalloc(DBG_SCHED_LIMIT * sizeof *seen, GFP_ATOMIC)))
+ return 0;
+ seen_count = 0;
+
+ bus = class_get_devdata(class_dev);
+ hcd = bus_to_hcd(bus);
+ ahcd = hcd_to_admhcd(hcd);
+ next = buf;
+ size = PAGE_SIZE;
+
+ temp = scnprintf(next, size, "size = %d\n", NUM_INTS);
+ size -= temp;
+ next += temp;
+
+ /* dump a snapshot of the periodic schedule (and load) */
+ spin_lock_irqsave(&ahcd->lock, flags);
+ for (i = 0; i < NUM_INTS; i++) {
+ if (!(ed = ahcd->periodic [i]))
+ continue;
+
+ temp = scnprintf(next, size, "%2d [%3d]:", i, ahcd->load [i]);
+ size -= temp;
+ next += temp;
+
+ do {
+ temp = scnprintf(next, size, " ed%d/%p",
+ ed->interval, ed);
+ size -= temp;
+ next += temp;
+ for (temp = 0; temp < seen_count; temp++) {
+ if (seen [temp] == ed)
+ break;
+ }
+
+ /* show more info the first time around */
+ if (temp == seen_count) {
+ u32 info = hc32_to_cpu (ahcd, ed->hwINFO);
+ struct list_head *entry;
+ unsigned qlen = 0;
+
+ /* qlen measured here in TDs, not urbs */
+ list_for_each (entry, &ed->td_list)
+ qlen++;
+ temp = scnprintf(next, size,
+ " (%cs dev%d ep%d%s qlen %u"
+ " max %d %08x%s%s)",
+ (info & ED_SPEED_FULL) ? 'f' : 'l',
+ ED_FA_GET(info),
+ ED_EN_GET(info),
+ (info & ED_ISO) ? "iso" : "int",
+ qlen,
+ ED_MPS_GET(info),
+ info,
+ (info & ED_SKIP) ? " K" : "",
+ (ed->hwHeadP &
+ cpu_to_hc32(ahcd, ED_H)) ?
+ " H" : "");
+ size -= temp;
+ next += temp;
+
+ if (seen_count < DBG_SCHED_LIMIT)
+ seen [seen_count++] = ed;
+
+ ed = ed->ed_next;
+
+ } else {
+ /* we've seen it and what's after */
+ temp = 0;
+ ed = NULL;
+ }
+
+ } while (ed);
+
+ temp = scnprintf(next, size, "\n");
+ size -= temp;
+ next += temp;
+ }
+ spin_unlock_irqrestore(&ahcd->lock, flags);
+ kfree (seen);
+
+ return PAGE_SIZE - size;
+}
+static CLASS_DEVICE_ATTR(periodic, S_IRUGO, show_periodic, NULL);
+
+
+#undef DBG_SCHED_LIMIT
+
static ssize_t
show_registers(struct class_device *class_dev, char *buf)
{
int retval;
retval = class_device_create_file(cldev, &class_device_attr_async);
+ retval = class_device_create_file(cldev, &class_device_attr_periodic);
retval = class_device_create_file(cldev, &class_device_attr_registers);
admhc_dbg(ahcd, "created debug files\n");
}
struct class_device *cldev = admhcd_to_hcd(ahcd)->self.class_dev;
class_device_remove_file(cldev, &class_device_attr_async);
+ class_device_remove_file(cldev, &class_device_attr_periodic);
class_device_remove_file(cldev, &class_device_attr_registers);
}
#endif
/*-------------------------------------------------------------------------*/
-
projects / openwrt.git / blobdiff