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linux-next/drivers/usb/host/uhci-debug.c

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* UHCI-specific debugging code. Invaluable when something
* goes wrong, but don't get in my face.
*
[PATCH] USB: UHCI: edit some comments This patch (as615b) edits a large number of comments in the uhci-hcd code, mainly removing excess apostrophes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-01 06:16:19 +08:00
* Kernel visible pointers are surrounded in []s and bus
* visible pointers are surrounded in ()s
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
*
* (C) Copyright 1999 Linus Torvalds
* (C) Copyright 1999-2001 Johannes Erdfelt
*/
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
#include <linux/slab.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <linux/kernel.h>
#include <linux/debugfs.h>
#include <asm/io.h>
#include "uhci-hcd.h"
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
#define EXTRA_SPACE 1024
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
static struct dentry *uhci_debugfs_root;
#ifdef DEBUG
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] USB: UHCI: edit some comments This patch (as615b) edits a large number of comments in the uhci-hcd code, mainly removing excess apostrophes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-01 06:16:19 +08:00
/* Handle REALLY large printks so we don't overflow buffers */
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
static void lprintk(char *buf)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
char *p;
/* Just write one line at a time */
while (buf) {
p = strchr(buf, '\n');
if (p)
*p = 0;
printk(KERN_DEBUG "%s\n", buf);
buf = p;
if (buf)
buf++;
}
}
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
static int uhci_show_td(struct uhci_hcd *uhci, struct uhci_td *td, char *buf,
int len, int space)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
char *out = buf;
char *spid;
u32 status, token;
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
status = td_status(uhci, td);
out += sprintf(out, "%*s[%p] link (%08x) ", space, "", td,
hc32_to_cpu(uhci, td->link));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "e%d %s%s%s%s%s%s%s%s%s%sLength=%x ",
((status >> 27) & 3),
(status & TD_CTRL_SPD) ? "SPD " : "",
(status & TD_CTRL_LS) ? "LS " : "",
(status & TD_CTRL_IOC) ? "IOC " : "",
(status & TD_CTRL_ACTIVE) ? "Active " : "",
(status & TD_CTRL_STALLED) ? "Stalled " : "",
(status & TD_CTRL_DBUFERR) ? "DataBufErr " : "",
(status & TD_CTRL_BABBLE) ? "Babble " : "",
(status & TD_CTRL_NAK) ? "NAK " : "",
(status & TD_CTRL_CRCTIMEO) ? "CRC/Timeo " : "",
(status & TD_CTRL_BITSTUFF) ? "BitStuff " : "",
status & 0x7ff);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
token = td_token(uhci, td);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
switch (uhci_packetid(token)) {
case USB_PID_SETUP:
spid = "SETUP";
break;
case USB_PID_OUT:
spid = "OUT";
break;
case USB_PID_IN:
spid = "IN";
break;
default:
spid = "?";
break;
}
out += sprintf(out, "MaxLen=%x DT%d EndPt=%x Dev=%x, PID=%x(%s) ",
token >> 21,
((token >> 19) & 1),
(token >> 15) & 15,
(token >> 8) & 127,
(token & 0xff),
spid);
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += sprintf(out, "(buf=%08x)\n", hc32_to_cpu(uhci, td->buffer));
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
done:
if (out - buf > len)
out += sprintf(out, " ...\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return out - buf;
}
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
static int uhci_show_urbp(struct uhci_hcd *uhci, struct urb_priv *urbp,
char *buf, int len, int space)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
char *out = buf;
struct uhci_td *td;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
int i, nactive, ninactive;
[PATCH] USB: UHCI: store the endpoint type in the QH structure This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-06 04:26:58 +08:00
char *ptype;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
out += sprintf(out, "urb_priv [%p] ", urbp);
out += sprintf(out, "urb [%p] ", urbp->urb);
out += sprintf(out, "qh [%p] ", urbp->qh);
out += sprintf(out, "Dev=%d ", usb_pipedevice(urbp->urb->pipe));
out += sprintf(out, "EP=%x(%s) ", usb_pipeendpoint(urbp->urb->pipe),
(usb_pipein(urbp->urb->pipe) ? "IN" : "OUT"));
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
switch (usb_pipetype(urbp->urb->pipe)) {
[PATCH] USB: UHCI: store the endpoint type in the QH structure This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-06 04:26:58 +08:00
case PIPE_ISOCHRONOUS: ptype = "ISO"; break;
case PIPE_INTERRUPT: ptype = "INT"; break;
case PIPE_BULK: ptype = "BLK"; break;
default:
case PIPE_CONTROL: ptype = "CTL"; break;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
}
[PATCH] USB: UHCI: store the endpoint type in the QH structure This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-06 04:26:58 +08:00
out += sprintf(out, "%s%s", ptype, (urbp->fsbr ? " FSBR" : ""));
USB: uhci: don't use pseudo negative values The code in uhci-q.c doesn't have to use pseudo-negative values. I did it that way because it was easy and because it would give the expected output during debugging. But it doesn't have to work that way. Here's another approach. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-03-06 00:01:11 +08:00
out += sprintf(out, " Actlen=%d%s", urbp->urb->actual_length,
(urbp->qh->type == USB_ENDPOINT_XFER_CONTROL ?
"-8" : ""));
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
USB: add urb->unlinked field This patch (as970) adds a new urb->unlinked field, which is used to store the status of unlinked URBs since we can't use urb->status for that purpose any more. To help simplify the HCDs, usbcore will check urb->unlinked before calling the completion handler; if the value is set it will automatically override the status reported by the HCD. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> CC: David Brownell <david-b@pacbell.net> CC: Olav Kongas <ok@artecdesign.ee> CC: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> CC: Tony Olech <tony.olech@elandigitalsystems.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-08-22 03:40:36 +08:00
if (urbp->urb->unlinked)
out += sprintf(out, " Unlinked=%d", urbp->urb->unlinked);
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
out += sprintf(out, "\n");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
i = nactive = ninactive = 0;
list_for_each_entry(td, &urbp->td_list, list) {
[PATCH] UHCI: remove ISO TDs as they are used This patch (as690) does the same thing for ISO TDs as as680 did for non-ISO TDs: free them as they are used rather than all at once when an URB is complete. At the same time it fixes a minor buglet (I'm not aware of it ever affecting anyone): An ISO TD should be retired when its frame is over, regardless of whether or not the hardware has marked it inactive. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-20 04:52:35 +08:00
if (urbp->qh->type != USB_ENDPOINT_XFER_ISOC &&
(++i <= 10 || debug > 2)) {
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
out += sprintf(out, "%*s%d: ", space + 2, "", i);
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += uhci_show_td(uhci, td, out,
len - (out - buf), 0);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
} else {
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (td_status(uhci, td) & TD_CTRL_ACTIVE)
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
++nactive;
else
++ninactive;
}
}
if (nactive + ninactive > 0)
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
"%*s[skipped %d inactive and %d active TDs]\n",
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
space, "", ninactive, nactive);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
done:
if (out - buf > len)
out += sprintf(out, " ...\n");
tail:
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
return out - buf;
}
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
static int uhci_show_qh(struct uhci_hcd *uhci,
struct uhci_qh *qh, char *buf, int len, int space)
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
{
char *out = buf;
int i, nurbs;
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
__hc32 element = qh_element(qh);
[PATCH] USB: UHCI: store the endpoint type in the QH structure This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-06 04:26:58 +08:00
char *qtype;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] USB: UHCI: store the endpoint type in the QH structure This patch (as675) simplifies uhci-hcd slightly by storing each endpoint's type in the corresponding Queue Header structure. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-06 04:26:58 +08:00
switch (qh->type) {
case USB_ENDPOINT_XFER_ISOC: qtype = "ISO"; break;
case USB_ENDPOINT_XFER_INT: qtype = "INT"; break;
case USB_ENDPOINT_XFER_BULK: qtype = "BLK"; break;
case USB_ENDPOINT_XFER_CONTROL: qtype = "CTL"; break;
default: qtype = "Skel" ; break;
}
out += sprintf(out, "%*s[%p] %s QH link (%08x) element (%08x)\n",
space, "", qh, qtype,
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
hc32_to_cpu(uhci, qh->link),
hc32_to_cpu(uhci, element));
[PATCH] UHCI: store the period in the queue header This patch (as689) stores the period for periodic transfers (interrupt and ISO) in the queue header. This is necessary for proper bandwidth tracking (not yet implemented). It also makes the scheduling of ISO transfers a bit more rigorous, with checks for out-of-bounds frame numbers. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-20 04:44:55 +08:00
if (qh->type == USB_ENDPOINT_XFER_ISOC)
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
"%*s period %d phase %d load %d us, frame %x desc [%p]\n",
UHCI: fix bandwidth allocation This patch (as840) fixes the bandwidth allocation mechanism in uhci-hcd. It has never worked correctly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-17 00:56:32 +08:00
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);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (element & UHCI_PTR_QH(uhci))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "%*s Element points to QH (bug?)\n", space, "");
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (element & UHCI_PTR_DEPTH(uhci))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "%*s Depth traverse\n", space, "");
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (element & cpu_to_hc32(uhci, 8))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "%*s Bit 3 set (bug?)\n", space, "");
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (!(element & ~(UHCI_PTR_QH(uhci) | UHCI_PTR_DEPTH(uhci))))
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "%*s Element is NULL (bug?)\n", space, "");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
if (list_empty(&qh->queue)) {
out += sprintf(out, "%*s queue is empty\n", space, "");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (qh == uhci->skel_async_qh) {
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += uhci_show_td(uhci, uhci->term_td, out,
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
len - (out - buf), 0);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
}
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
} 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);
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (element != LINK_TO_TD(uhci, td))
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
out += sprintf(out, "%*s Element != First TD\n",
space, "");
i = nurbs = 0;
list_for_each_entry(urbp, &qh->queue, node) {
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (++i <= 10) {
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += uhci_show_urbp(uhci, urbp, out,
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
len - (out - buf), space + 2);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
}
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
else
++nurbs;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
if (nurbs > 0)
out += sprintf(out, "%*s Skipped %d URBs\n",
space, "", nurbs);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
UHCI: no dummy TDs for Iso QHs Isochronous queues don't need a dummy TD because the Queue Header isn't managed by the hardware. This patch (as836) removes the unnecessary dummy TDs. The patch also fixes a long-standing typo in a comment (a "don't" was missing -- potentially very confusing!). Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:01:43 +08:00
if (qh->dummy_td) {
[PATCH] UHCI: use dummy TDs This patch (as624) fixes a hardware race in uhci-hcd by adding a dummy TD to the end of each endpoint's queue. Without the dummy the host controller will effectively turn off the queue when it reaches the end, which happens asynchronously. This leads to a potential problem when new transfer descriptors are added to the end of the queue; they may never get used. With a dummy TD present the controller never turns off the queue; instead it just stops at the dummy and leaves the queue on but inactive. When new TDs are added to the end of the queue, the first new one gets written over the dummy. Thus there's never any question about whether the queue is running or needs to be restarted. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:00:12 +08:00
out += sprintf(out, "%*s Dummy TD\n", space, "");
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += uhci_show_td(uhci, qh->dummy_td, out,
len - (out - buf), 0);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
[PATCH] UHCI: use dummy TDs This patch (as624) fixes a hardware race in uhci-hcd by adding a dummy TD to the end of each endpoint's queue. Without the dummy the host controller will effectively turn off the queue when it reaches the end, which happens asynchronously. This leads to a potential problem when new transfer descriptors are added to the end of the queue; they may never get used. With a dummy TD present the controller never turns off the queue; instead it just stops at the dummy and leaves the queue on but inactive. When new TDs are added to the end of the queue, the first new one gets written over the dummy. Thus there's never any question about whether the queue is running or needs to be restarted. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:00:12 +08:00
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
done:
if (out - buf > len)
out += sprintf(out, " ...\n");
tail:
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return out - buf;
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
static int uhci_show_sc(int port, unsigned short status, char *buf)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
{
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
return sprintf(buf, " stat%d = %04x %s%s%s%s%s%s%s%s%s%s\n",
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
port,
status,
(status & USBPORTSC_SUSP) ? " Suspend" : "",
(status & USBPORTSC_OCC) ? " OverCurrentChange" : "",
(status & USBPORTSC_OC) ? " OverCurrent" : "",
(status & USBPORTSC_PR) ? " Reset" : "",
(status & USBPORTSC_LSDA) ? " LowSpeed" : "",
(status & USBPORTSC_RD) ? " ResumeDetect" : "",
(status & USBPORTSC_PEC) ? " EnableChange" : "",
(status & USBPORTSC_PE) ? " Enabled" : "",
(status & USBPORTSC_CSC) ? " ConnectChange" : "",
(status & USBPORTSC_CCS) ? " Connected" : "");
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
static int uhci_show_root_hub_state(struct uhci_hcd *uhci, char *buf)
[PATCH] USB UHCI: Add root hub states This patch starts making some serious changes to the UHCI driver. There's a set of private states for the root hub, and the internal routines for suspending and resuming work completely differently, with transitions based on the new states. Now the driver distinguishes between a privately auto-stopped state and a publicly suspended state, and it will properly suspend controllers with broken resume-detect interrupts instead of resetting them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-10 05:27:32 +08:00
{
char *rh_state;
switch (uhci->rh_state) {
case UHCI_RH_RESET:
rh_state = "reset"; break;
case UHCI_RH_SUSPENDED:
rh_state = "suspended"; break;
case UHCI_RH_AUTO_STOPPED:
rh_state = "auto-stopped"; break;
case UHCI_RH_RESUMING:
rh_state = "resuming"; break;
case UHCI_RH_SUSPENDING:
rh_state = "suspending"; break;
case UHCI_RH_RUNNING:
rh_state = "running"; break;
case UHCI_RH_RUNNING_NODEVS:
rh_state = "running, no devs"; break;
default:
rh_state = "?"; break;
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
return sprintf(buf, "Root-hub state: %s FSBR: %d\n",
[PATCH] UHCI: Reimplement FSBR This patch (as683) re-implements Full-Speed Bandwidth Reclamation (FSBR) properly. It keeps track of which endpoint queues have advanced, and when none have advanced for a sufficiently long time, FSBR is turned off. The next TD on each of the non-moving queues is modified to generate an interrupt on completion, so that FSBR can be re-enabled as soon as the hardware starts to make some progress. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-12 23:35:45 +08:00
rh_state, uhci->fsbr_is_on);
[PATCH] USB UHCI: Add root hub states This patch starts making some serious changes to the UHCI driver. There's a set of private states for the root hub, and the internal routines for suspending and resuming work completely differently, with transitions based on the new states. Now the driver distinguishes between a privately auto-stopped state and a publicly suspended state, and it will properly suspend controllers with broken resume-detect interrupts instead of resetting them. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-04-10 05:27:32 +08:00
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len)
{
char *out = buf;
unsigned short usbcmd, usbstat, usbint, usbfrnum;
unsigned int flbaseadd;
unsigned char sof;
unsigned short portsc1, portsc2;
USB: UHCI: Wrap I/O register accesses This patch is part of a series that extend the UHCI HCD to support non-PCI controllers. This patch replaces in{b,w,l} and out{b,wl} with calls to local inline functions. This is done so that the register access functions can be extended to support register areas not mapped in PCI I/O space. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-06 18:00:16 +08:00
usbcmd = uhci_readw(uhci, 0);
usbstat = uhci_readw(uhci, 2);
usbint = uhci_readw(uhci, 4);
usbfrnum = uhci_readw(uhci, 6);
flbaseadd = uhci_readl(uhci, 8);
sof = uhci_readb(uhci, 12);
portsc1 = uhci_readw(uhci, 16);
portsc2 = uhci_readw(uhci, 18);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, " usbcmd = %04x %s%s%s%s%s%s%s%s\n",
usbcmd,
(usbcmd & USBCMD_MAXP) ? "Maxp64 " : "Maxp32 ",
(usbcmd & USBCMD_CF) ? "CF " : "",
(usbcmd & USBCMD_SWDBG) ? "SWDBG " : "",
(usbcmd & USBCMD_FGR) ? "FGR " : "",
(usbcmd & USBCMD_EGSM) ? "EGSM " : "",
(usbcmd & USBCMD_GRESET) ? "GRESET " : "",
(usbcmd & USBCMD_HCRESET) ? "HCRESET " : "",
(usbcmd & USBCMD_RS) ? "RS " : "");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, " usbstat = %04x %s%s%s%s%s%s\n",
usbstat,
(usbstat & USBSTS_HCH) ? "HCHalted " : "",
(usbstat & USBSTS_HCPE) ? "HostControllerProcessError " : "",
(usbstat & USBSTS_HSE) ? "HostSystemError " : "",
(usbstat & USBSTS_RD) ? "ResumeDetect " : "",
(usbstat & USBSTS_ERROR) ? "USBError " : "",
(usbstat & USBSTS_USBINT) ? "USBINT " : "");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, " usbint = %04x\n", usbint);
out += sprintf(out, " usbfrnum = (%d)%03x\n", (usbfrnum >> 10) & 1,
0xfff & (4*(unsigned int)usbfrnum));
out += sprintf(out, " flbaseadd = %08x\n", flbaseadd);
out += sprintf(out, " sof = %02x\n", sof);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
out += uhci_show_sc(1, portsc1, out);
if (out - buf > len)
goto done;
out += uhci_show_sc(2, portsc2, out);
if (out - buf > len)
goto done;
out += sprintf(out,
"Most recent frame: %x (%d) Last ISO frame: %x (%d)\n",
[PATCH] UHCI: remove ISO TDs as they are used This patch (as690) does the same thing for ISO TDs as as680 did for non-ISO TDs: free them as they are used rather than all at once when an URB is complete. At the same time it fixes a minor buglet (I'm not aware of it ever affecting anyone): An ISO TD should be retired when its frame is over, regardless of whether or not the hardware has marked it inactive. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-05-20 04:52:35 +08:00
uhci->frame_number, uhci->frame_number & 1023,
uhci->last_iso_frame, uhci->last_iso_frame & 1023);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
done:
if (out - buf > len)
out += sprintf(out, " ...\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return out - buf;
}
static int uhci_sprint_schedule(struct uhci_hcd *uhci, char *buf, int len)
{
char *out = buf;
int i, j;
struct uhci_qh *qh;
struct uhci_td *td;
struct list_head *tmp, *head;
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
int nframes, nerrs;
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
__hc32 link;
__hc32 fsbr_link;
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
static const char * const qh_names[] = {
"unlink", "iso", "int128", "int64", "int32", "int16",
"int8", "int4", "int2", "async", "term"
};
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
out += uhci_show_root_hub_state(uhci, out);
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "HC status\n");
out += uhci_show_status(uhci, out, len - (out - buf));
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
UHCI: fix bandwidth allocation This patch (as840) fixes the bandwidth allocation mechanism in uhci-hcd. It has never worked correctly. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-17 00:56:32 +08:00
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);
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
if (debug <= 1)
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
goto tail;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
out += sprintf(out, "Frame List\n");
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
nframes = 10;
nerrs = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
for (i = 0; i < UHCI_NUMFRAMES; ++i) {
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
__hc32 qh_dma;
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
j = 0;
[PATCH] USB: UHCI: Split apart the physical and logical framelist arrays This patch (as563) splits the physical and logical framelist arrays in uhci-hcd into two separate pieces. This will allow slightly better memory utilization, since each piece is no larger than a single page whereas before the whole thing was a little bigger than two pages. It also allows the logical array to be allocated in non-DMA-coherent memory. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-09-17 02:22:51 +08:00
td = uhci->frame_cpu[i];
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
link = uhci->frame[i];
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
if (!td)
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
goto check_link;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
if (nframes > 0) {
out += sprintf(out, "- Frame %d -> (%08x)\n",
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
i, hc32_to_cpu(uhci, link));
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
j = 1;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
head = &td->fl_list;
tmp = head;
do {
td = list_entry(tmp, struct uhci_td, fl_list);
tmp = tmp->next;
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
if (link != LINK_TO_TD(uhci, td)) {
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (nframes > 0) {
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
" link does not match list entry!\n");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
} else
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
++nerrs;
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (nframes > 0) {
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
out += uhci_show_td(uhci, td, out,
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
len - (out - buf), 4);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
}
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
link = td->link;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
} while (tmp != head);
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
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",
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
i, hc32_to_cpu(uhci, link));
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
j = 1;
}
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
" link does not match QH (%08x)!\n",
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
hc32_to_cpu(uhci, qh_dma));
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
} else
++nerrs;
}
nframes -= j;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
UHCI: improved debugging checks for the frame list This patch (as768) improves the debugging checks for the uhci-hcd frame list. The number of entries displayed is limited to 10, and the driver now checks for the correct Skeleton QH link value at the end of each chain of Isochronous TDs. The code to compute these link values is now used in two spots, so it is moved into its own separate subroutine. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-01-09 01:00:28 +08:00
if (nerrs > 0)
out += sprintf(out, "Skipped %d bad links\n", nerrs);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] USB: UHCI: edit some comments This patch (as615b) edits a large number of comments in the uhci-hcd code, mainly removing excess apostrophes. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-01 06:16:19 +08:00
out += sprintf(out, "Skeleton QHs\n");
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
fsbr_link = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
for (i = 0; i < UHCI_NUM_SKELQH; ++i) {
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
int cnt = 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
qh = uhci->skelqh[i];
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out, "- skel_%s_qh\n", qh_names[i]);
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
out += uhci_show_qh(uhci, qh, out, len - (out - buf), 4);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* Last QH is the Terminating QH, it's different */
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
if (i == SKEL_TERM) {
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (qh_element(qh) != LINK_TO_TD(uhci, uhci->term_td)) {
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
" skel_term_qh element is not set to term_td!\n");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
}
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
link = fsbr_link;
if (!link)
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
link = LINK_TO_QH(uhci, uhci->skel_term_qh);
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
goto check_qh_link;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
head = &qh->node;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tmp = head->next;
while (tmp != head) {
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
qh = list_entry(tmp, struct uhci_qh, node);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
tmp = tmp->next;
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (++cnt <= 10) {
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
out += uhci_show_qh(uhci, qh, out,
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
len - (out - buf), 4);
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto tail;
}
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
if (!fsbr_link && qh->skel >= SKEL_FSBR)
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
fsbr_link = LINK_TO_QH(uhci, qh);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
if ((cnt -= 10) > 0)
out += sprintf(out, " Skipped %d QHs\n", cnt);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
link = UHCI_PTR_TERM(uhci);
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
if (i <= SKEL_ISO)
;
else if (i < SKEL_ASYNC)
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
link = LINK_TO_QH(uhci, uhci->skel_async_qh);
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
else if (!uhci->fsbr_is_on)
;
else
USB: UHCI: Add support for big endian descriptors This patch adds support for universal host controllers that use big endian descriptors. Support for BE descriptors requires a non-PCI host controller. For kernels with PCI-only UHCI there should be no change in behaviour. This patch tries to replicate the technique used to support BE descriptors in the EHCI HCD. Parts added to uhci-hcd.h are basically copy'n'paste from ehci.h. Signed-off-by: Jan Andersson <jan@gaisler.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-18 16:44:51 +08:00
link = LINK_TO_QH(uhci, uhci->skel_term_qh);
UHCI: Eliminate asynchronous skeleton Queue Headers This patch (as856) attempts to improve the performance of uhci-hcd by removing the asynchronous skeleton Queue Headers. They don't contain any useful information but the controller has to read through them at least once every millisecond, incurring a non-zero DMA overhead. Now all the asynchronous queues are combined, along with the period-1 interrupt queue, into a single list with a single skeleton QH. The start of the low-speed control, full-speed control, and bulk sublists is determined by linear search. Since there should rarely be more than a couple of QHs in the list, the searches should incur a much smaller total load than keeping the skeleton QHs. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-02-20 04:52:45 +08:00
check_qh_link:
if (qh->link != link)
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
out += sprintf(out,
" last QH not linked to next skeleton!\n");
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
if (out - buf > len)
goto done;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
done:
if (out - buf > len)
out += sprintf(out, " ...\n");
tail:
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return out - buf;
}
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
#ifdef CONFIG_DEBUG_FS
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#define MAX_OUTPUT (64 * 1024)
struct uhci_debug {
int size;
char *data;
};
static int uhci_debug_open(struct inode *inode, struct file *file)
{
[PATCH] inode_diet: Replace inode.u.generic_ip with inode.i_private The following patches reduce the size of the VFS inode structure by 28 bytes on a UP x86. (It would be more on an x86_64 system). This is a 10% reduction in the inode size on a UP kernel that is configured in a production mode (i.e., with no spinlock or other debugging functions enabled; if you want to save memory taken up by in-core inodes, the first thing you should do is disable the debugging options; they are responsible for a huge amount of bloat in the VFS inode structure). This patch: The filesystem or device-specific pointer in the inode is inside a union, which is pretty pointless given that all 30+ users of this field have been using the void pointer. Get rid of the union and rename it to i_private, with a comment to explain who is allowed to use the void pointer. This is just a cleanup, but it allows us to reuse the union 'u' for something something where the union will actually be used. [judith@osdl.org: powerpc build fix] Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Judith Lebzelter <judith@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-27 16:50:46 +08:00
struct uhci_hcd *uhci = inode->i_private;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
struct uhci_debug *up;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
unsigned long flags;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
up = kmalloc(sizeof(*up), GFP_KERNEL);
if (!up)
USB-BKL: Remove BKL use in uhci-debug BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02 05:04:43 +08:00
return -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
up->data = kmalloc(MAX_OUTPUT, GFP_KERNEL);
if (!up->data) {
kfree(up);
USB-BKL: Remove BKL use in uhci-debug BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02 05:04:43 +08:00
return -ENOMEM;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
up->size = 0;
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
spin_lock_irqsave(&uhci->lock, flags);
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
if (uhci->is_initialized)
USB: uhci: check buffer length to avoid memory overflow for function uhci_sprint_schedule: the buffer len is MAX_OUTPUT: 64 * 1024, which may not be enough: may loop UHCI_NUMFRAMES times (UHCI_NUMFRAMES is 1024) each time of loop may get more than 64 bytes so need check the buffer length to avoid memory overflow this patch fix it like this: at first, make enough room for buffering the exceeding contents judge the contents which written whether bigger than buffer length if bigger (the exceeding contents will be in the exceeding buffer) break current work flow, and return. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-23 16:13:41 +08:00
up->size = uhci_sprint_schedule(uhci, up->data,
MAX_OUTPUT - EXTRA_SPACE);
[PATCH] UHCI: use one QH per endpoint, not per URB This patch (as623) changes the uhci-hcd driver to make it use one QH per device endpoint, instead of a QH per URB as it does now. Numerous areas of the code are affected by this. For example, the distinction between "queued" URBs and non-"queued" URBs no longer exists; all URBs belong to a queue and some just happen to be at the queue's head. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 06:58:46 +08:00
spin_unlock_irqrestore(&uhci->lock, flags);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
file->private_data = up;
USB-BKL: Remove BKL use in uhci-debug BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02 05:04:43 +08:00
return 0;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
}
static loff_t uhci_debug_lseek(struct file *file, loff_t off, int whence)
{
struct uhci_debug *up;
loff_t new = -1;
up = file->private_data;
USB: uhci: beautify source code get rid of the line breaks in string constants. let comments within 80 with limitation. delete ' \' at the end of a statement. Signed-off-by: Chen Gang <gang.chen@asianux.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-01-24 09:41:45 +08:00
/*
* XXX: atomic 64bit seek access, but that needs to be fixed in the VFS
*/
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
switch (whence) {
case 0:
new = off;
break;
case 1:
new = file->f_pos + off;
break;
}
USB-BKL: Remove BKL use in uhci-debug BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02 05:04:43 +08:00
if (new < 0 || new > up->size)
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return -EINVAL;
USB-BKL: Remove BKL use in uhci-debug BKL was not really needed, just came from earlier push downs. The only part that's a bit dodgy is the lseek function. Would need another lock or atomic access to fpos on 32bit? Better to have a libfs lseek Signed-off-by: Andi Kleen <ak@linux.intel.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-02 05:04:43 +08:00
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
return (file->f_pos = new);
}
static ssize_t uhci_debug_read(struct file *file, char __user *buf,
size_t nbytes, loff_t *ppos)
{
struct uhci_debug *up = file->private_data;
return simple_read_from_buffer(buf, nbytes, ppos, up->data, up->size);
}
static int uhci_debug_release(struct inode *inode, struct file *file)
{
struct uhci_debug *up = file->private_data;
kfree(up->data);
kfree(up);
return 0;
}
USB: Make file operations structs in drivers/usb const. Making structs const prevents accidental bugs and with the proper debug options they're protected against corruption. Signed-off-by: Luiz Fernando N. Capitulino <lcapitulino@mandriva.com.br> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-08-06 07:37:11 +08:00
static const struct file_operations uhci_debug_operations = {
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
.owner = THIS_MODULE,
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
.open = uhci_debug_open,
.llseek = uhci_debug_lseek,
.read = uhci_debug_read,
.release = uhci_debug_release,
};
USB: remove fake "address-of" expressions Fake "address-of" expressions that evaluate to NULL generally confuse readers and can provoke compiler warnings. This patch (as1412) removes three such fake expressions, using "#ifdef"s in their place. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-08-06 01:12:14 +08:00
#define UHCI_DEBUG_OPS
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
#endif /* CONFIG_DEBUG_FS */
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
#else /* DEBUG */
static inline void lprintk(char *buf)
{}
UHCI: Fix problem caused by lack of terminating QH This patch (as871) fixes a problem introduced by an earlier change. It turns out that some systems really do need to have a terminating skeleton QH present whenever FSBR is on. I don't know any way to tell which systems do need it and which don't; the easiest answer is to have it there always. This fixes the NumLock-hang bug reported by Jiri Slaby. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-03-20 03:31:42 +08:00
static inline int uhci_show_qh(struct uhci_hcd *uhci,
struct uhci_qh *qh, char *buf, int len, int space)
[PATCH] UHCI: improve debugging code This patch (as626) makes some improvements to the debugging code in uhci-hcd. The main change is that now the code won't get compiled if CONFIG_USB_DEBUG isn't set. But there are other changes too, like adding a missing .owner field and printing a debugging dump if the controller dies. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-12-18 07:03:37 +08:00
{
return 0;
}
static inline int uhci_sprint_schedule(struct uhci_hcd *uhci,
char *buf, int len)
{
return 0;
}
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif
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