Commit Graph

23 Commits

Author SHA1 Message Date
Hans Petter Selasky
a18a7a414a Resolve a LOR after r246616. Protect control requests using the USB device
enumeration lock. Make sure all callers of usbd_enum_lock() check the return
value. Remove the control transfer specific lock. Bump the FreeBSD version
number, hence external USB modules may need to be recompiled due to a USB
device structure change.

MFC after:	1 week
2013-02-13 12:35:17 +00:00
Hans Petter Selasky
6950c75f40 - Move scratch data from the USB bus structure to the USB device structure
so that simultaneous access cannot happen. Protect scratch area using
the enumeration lock. Also reduce stack usage in usbd_transfer_setup()
by moving some big stack members to the scratch area. This saves around
200 bytes of stack.
- Fix a whitespace.

MFC after:	1 week
2013-02-10 10:56:13 +00:00
Hans Petter Selasky
d2b99310b1 Modify the FreeBSD USB kernel code so that it can be compiled directly
into the FreeBSD boot loader, typically for non-USB aware BIOSes, EFI systems
or embedded platforms. This is also useful for out of the system compilation
of the FreeBSD USB stack for various purposes. The USB kernel files can
now optionally include a global header file which should include all needed
definitions required to compile the FreeBSD USB stack. When the global USB
header file is included, no other USB header files will be included by
default.

Add new file containing the USB stack configuration for the
FreeBSD loader build.

Replace some __FBSDID()'s by /* $FreeBSD$ */ comments. Now all
USB files follow the same style.

Use cases:
 - console in loader via USB
 - loading kernel via USB

Discussed with:		Hiroki Sato, hrs @ EuroBSDCon
2013-01-30 15:26:04 +00:00
Hans Petter Selasky
6d917491f5 Fix compiler warnings, mostly signed issues,
when USB modules are compiled with WARNS=9.

MFC after:	1 weeks
2012-04-02 10:50:42 +00:00
John Baldwin
58ccf5b41c Remove unneeded includes of <sys/linker_set.h>. Other headers that use
it internally contain nested includes.

Reviewed by:	bde
2011-01-11 13:59:06 +00:00
Hans Petter Selasky
2ecb4e919f Add missing #if's
Approved by:    thompsa (mentor)
2010-10-04 22:50:08 +00:00
Alfred Perlstein
cb18f7d12b - Patch to allow USB controller to resume operation after
being polled.

         - Remove the need for Giant from the USB HUB driver.

         - Leave device unconfigured instead of disabling the USB port
           when Huawei Autoinstall disk detection triggers. This should
           fix problems that the Huawei device is not detected after
           Autoinstall eject is issued.
         - Reported by: Nikolay Antsiferov

         - Fix memory use after free race for USB character devices.
         - Reported by: Lucius Windschuh

         - Factor out the enumeration lock into three functions to make the
         coming newbus lock conversion more easy.
          - usbd_enum_lock
          - usbd_enum_unlock
          - usbd_enum_is_locked

Submitted by:	hps
2009-08-24 05:05:38 +00:00
John Baldwin
a56fe095f0 Temporarily revert the new-bus locking for 8.0 release. It will be
reintroduced after HEAD is reopened for commits by re@.

Approved by:	re (kib), attilio
2009-08-20 19:17:53 +00:00
Attilio Rao
444b91868b Make the newbus subsystem Giant free by adding the new newbus sxlock.
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.

Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.

For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.

Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.

Bump __FreeBSD_version in order to reflect the newbus lock introduction.

Reviewed by:    ed, hps, jhb, imp, mav, scottl
No answer by:   ariff, thompsa, yongari
Tested by:      pho,
                G. Trematerra <giovanni dot trematerra at gmail dot com>,
                Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by:   Yahoo! Incorporated
Approved by:	re (ksmith)
2009-08-02 14:28:40 +00:00
Alfred Perlstein
bd73b18714 USB core:
- add support for defragging of written device data.
- improve handling of alternate settings in device side mode.
- correct return value from usbd_get_no_alts() function.
- reported by: HPS
- P4 ID: 166156, 166168

- report USB device release information to devd and pnpinfo.
- reported by: MIHIRA Sanpei Yoshiro
- P4 ID: 166221

Submitted by:	hps
Approved by:	re
2009-07-30 00:15:50 +00:00
Andrew Thompson
29bd7d7e9a Sync to p4
- Add support for devices that handle set and clear stall in hardware.
 - Add missing get timestamp function
 - Add more xfer flags

Submitted by:	Hans Petter Selasky
Approved by:	re (kib)
2009-06-27 21:23:30 +00:00
Andrew Thompson
ed6d949afd - Make struct usb_xfer opaque so that drivers can not access the internals
- Reduce the number of headers needed for a usb driver, the common case is just   usb.h and usbdi.h
2009-06-23 02:19:59 +00:00
Andrew Thompson
a593f6b8de s/usb2_/usb_|usbd_/ on all function names for the USB stack. 2009-06-15 01:02:43 +00:00
Andrew Thompson
a755d548b7 Minor device side improvement. Make sure a not complete state gets paired with
a complete state in device side mode for the default control endpoint.

Submitted by:	Hans Petter Selasky
2009-06-12 15:58:55 +00:00
Andrew Thompson
ae60fdfba2 Rename usb pipes to endpoints as it better represents what they are, and struct
usb_pipe may be used for a different purpose later on.
2009-06-07 19:41:11 +00:00
Andrew Thompson
e0a69b51ac s/usb2_/usb_/ on all typedefs for the USB stack. 2009-05-29 18:46:57 +00:00
Andrew Thompson
760bc48e7e s/usb2_/usb_/ on all C structs for the USB stack. 2009-05-28 17:36:36 +00:00
Andrew Thompson
459d369ee2 MFp4 //depot/projects/usb@160930
Change the roothub exec functions to take the usb request and data pointers
directly rather than placing them on the parent bus struct.

Submitted by:	Hans Petter Selasky
2009-04-22 17:08:16 +00:00
Andrew Thompson
4eae601ebd MFp4 //depot/projects/usb@159909
- make usb2_power_mask_t 16-bit
- remove "usb2_config_sub" structure from "usb2_config". To compensate for this
  "usb2_config" has a new field called "usb_mode" which select for which mode
  the current xfer entry is active. Options are: a) Device mode only b) Host
  mode only (default-by-zero) c) Both modes.  This change was scripted using
  the following sed script: "s/\.mh\././g".
- the standard packet size table in "usb_transfer.c" is now a function, hence
  the code for the function uses less memory than the table itself.

Submitted by:	Hans Petter Selasky
2009-04-05 18:20:38 +00:00
Andrew Thompson
090f65a6f6 MFp4 //depot/projects/usb@159517
Fix warnings with the IAR compiler.

Submitted by:	Hans Petter Selasky
2009-03-20 22:10:36 +00:00
Andrew Thompson
ab42e8b2df MFp4 //depot/projects/usb @159430
- Move tunable defines into usb_core.h and dependancy towards usb_defs.h
- Leave hardcoded defines in "usb_defs.h".
- Allow overriding all tunable defines.
- Add more customisable typedefs.
- Correct maximum device number.

Submitted by:	Hans Petter Selasky
2009-03-20 19:04:31 +00:00
Andrew Thompson
e280503373 MFp4 //depot/projects/usb@157958
- We don't need to exit the Giant mutex when sleeping. This is done
  automatically. Replace Giant by NULL mutex for all control requests in the
  enumeration path.
- Optimise away duplicate alternate interface selection requests in USB Host
  mode.

Submitted by:	Hans Petter Selasky
2009-02-24 03:41:52 +00:00
Andrew Thompson
02ac645488 Move the new USB stack into its new home. 2009-02-23 18:31:00 +00:00