Commit Graph

27 Commits

Author SHA1 Message Date
Julius Werner 69eea7c01a libpayload: Split EHCI bulk transfers on packet boundaries over qTDs
EHCI controllers see transfers as a queue of transfer descriptors
(qTDs), each of which can represent an aligned area of up to 20KB. Each
qTD is processed separately, which means that a single USB packet cannot
span multiple qTDs.

While this should not be a problem according to the specification, some
USB storage devices seem to get confused when a packet in the middle of
a transfer is smaller than the maximum packet size (512 bytes) due to
falling on a qTD boundary. This patch aligns the total transfer length
per qTD to 512 bytes to avoid that problem (any excess bytes will simply
roll over to the next qTD).

Change-Id: I0b5db07507699a3861b30c1a5ee774c45dda7fdd
Signed-off-by: Julius Werner <jwerner@chromium.org>
Reviewed-on: http://review.coreboot.org/2651
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-13 23:08:11 +01:00
Vincent Palatin 716375dd3e libpayload: add support for 64-bit EHCI controllers
Initialize the high part of the address
and use 64-bit compatible descriptors.
(waste a few bytes on 32-bit but should be harmless)

Read USB stick on a SandyBridge system which has 64-bit EHCI.

Change-Id: I59cc842459acecdde8f8bdd4795ebfeccb842c8f
Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/2650
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kimarie Hoot <kimarie.hoot@se-eng.com>
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2013-03-13 23:07:49 +01:00
Gabe Black ef650a5d24 libpayload: Check for completion more often in ehci_set_periodic_schedule.
This function was using mdelay in a loop to check for the completion of an USB
controller operation. Since we're busy waiting anyway, we might as well wait
only 1 us before checking again and potentially seeing the completion 999 us
earlier than we would otherwise.

Change-Id: I177b303c5503a0078c608d5f945c395691d4bd8a
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/2522
Tested-by: build bot (Jenkins)
Reviewed-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2013-02-28 01:25:46 +01:00
Anton Kochkov c07fb15f17 libpayload: add EHCI QH/qTD debugging
Improve USB debugging for EHCI by adding dump_qh
and enhacing dump_td to dump all queue chain and information.

Change-Id: Ia8ecf19c6dac085cf9558bdf659a5e74ce332714
Signed-off-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-on: http://review.coreboot.org/2053
Tested-by: build bot (Jenkins)
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.huber@secunet.com>
2013-02-01 11:22:59 +01:00
Dave Frodin 6bf11cf50c libpayload: Use usb_debug() to show USB messages
Previously printf()'s were used to show USB messages
which results in lots of USB information being shown
when it isn't needed. This will now use the usb_debug()
printing funtion that already exists in usb.h.

Change-Id: I2199814de3327417417eb2e26a660f4a5557cb9f
Signed-off-by: Dave Frodin <dave.frodin@se-eng.com>
Reviewed-on: http://review.coreboot.org/2044
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
2012-12-18 19:59:22 +01:00
Nico Huber af169f4dd5 libpayload: ehci: Prevent some race conditions
Prevent race conditions, when an interrupt-queue underrun occurred and
the controller is currently working on our queue head or a transfer is
still in progress.

Change-Id: Ia14f80a08071306ee5d1349780be081bfacb206a
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1902
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
2012-11-23 18:18:59 +01:00
Nico Huber 86c686a76e libpayload: Reduce error output from EHCI
Stalled transfers are not fatal, so don't spew on the console on every
tiny failure.

Change-Id: I175c1e83a6af09c1abbd43d045ed6dbf0c79f871
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1899
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
2012-11-23 18:18:02 +01:00
Nico Huber 4f83d1b0c6 libpayload: ehci: Fix warnings about discarded volatile
We can trust free() and memset() to work correctly on volatile
references, so cast volatile pointers to (void *) when calling them.

Change-Id: Ieff7f78133b72f303349cca0a0ca3bbf37ec52bb
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1896
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
2012-11-23 18:17:31 +01:00
Nico Huber 6e711c6a97 libpayload: Add init() function to hci_t and rework uhci_reset()
uhci_reset() differs in semantics compared to the other HCI's reset()
implementations. uhci_reset() does some initialization work after a
controller reset. So move the initialization part to a new function,
uhci_reinit(), which get's exported through a new entry in hci_t:
hci_t.init().

Warning: This breaks code that relies on the current, special,
counterintuitive behaviour of uhci_reset(). If one wants a working host
controller after calling hci_t.reset(), he should call hci_t.init()
afterwards.

Change-Id: Ia7ce80865d12d11157645ce251f77f349f8e3c34
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1851
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-14 17:45:16 +01:00
Nico Huber d633dda995 libpayload: Free usb host controller instance after shutdown
All shutdown() implementations but ehci_shutdown() free the hci_t
structure. This seems correct and the reference to the hci_t shouldn't
be used after shutdown(), so do it in ehci_shutdown(), too.

Change-Id: Ie3506d769e73007735f3211710734a5f0107e43a
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1849
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-14 17:44:15 +01:00
Anton Kochkov 2fef58eaba [PATCH] libpayload: Implement EHCI reset function
Added ehci_reset() function to do a full reset of
the host controller

Change-Id: Ia48db8462ebbb8f260813eb6ba8349d002c4678b
Signed-off-by: Anton Kochkov <a.kochkov@securitycode.ru>
Reviewed-on: http://review.coreboot.org/1814
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-11-09 20:10:05 +01:00
Gabe Black 93ded5905c libpayload: Turn the "debug" #define into the usb_debug static inline function.
The "debug" macro used internally in the libpayload USB subsystem was very
generically named and would leak into consumers of the library that included
usb.h directly or indirectly. This change turns that #define from a macro into
a static inline function to move away from the preprocessor, and also renames
it to usb_debug so it's less likely to collide with something unrelated.

Change-Id: I18717df111aa9671495f8a2a5bdb2c6311fa7acf
Signed-off-by: Gabe Black <gabeblack@google.com>
Reviewed-on: http://review.coreboot.org/1738
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Tested-by: build bot (Jenkins)
2012-11-07 18:38:37 +01:00
Anton Kochkov 1c36eada27 libpayload: add controller type in usbdev_hc
Add controller type (UHCI, OHCI, EHCI or XHCI)
into usbdev_hc (hci_t) struct, so now we know
which type selected controller have. It needed
to access controller specific data, if access
usb tree outside of libpayload (e.g. in payload
intself)

Change-Id: I7df947bbb56a50d0d792ccd4d3a6b021ee95e2ea
Signed-off-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-on: http://review.coreboot.org/1145
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-08-23 07:05:02 +02:00
Nico Huber 3ca35cae35 libpayload: Add dummy queue heads to EHCI interrupt frame list
This introduces a dummy queue head in the interrupt frame list of the
EHCI host controller. It's a workaround for broken controllers which
follow pointers from this list even if the terminate bit is set.
Fortunately, they do honor the bit in queue heads and having an empty
QH in the list doesn't violate the standard.

The linux kernel has a similar workaround for AMD SB700, SB800, and
Hudson-2/3 platforms. We observed this bug with an AMD SB600.

Change-Id: Ibbb66dea5fddc89c7995a24d746bedf6bfa887be
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1124
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2012-06-21 11:53:25 +02:00
Nico Huber 0d120f8ee2 libpayload: Add interrupt-queue underrun recovery to EHCI
If the queue of an interrupt transfer runs out, we have to reset
the queue head. This also introduces the use of a spare transfer
descriptor (TD) in interrupt queues, which assures, that a processed
TD  won't be reused until the host controller has written it back
from his overlay.

Change-Id: Id0eeb2808b77f1c187f164eb34bd66f8f399938b
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1123
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2012-06-21 11:53:17 +02:00
Nico Huber cef86927e8 libpayload: Adjust timeout in EHCI driver
Tested with a bunch of usb flash sticks. The slowest non-TUR (test
unit ready) turn around took about 1.3s, so this commit increases the
timeout to 2s.

Change-Id: Iec64b5cc48d51912b2bdeeebb5885399a71311b2
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1120
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-06-21 11:52:33 +02:00
Anton Kochkov 2e33a65a8c libpayload: reg_base reading for USB EHCI driver
Added reading registers base address for USB EHCI driver
in ehci_init() function.

Change-Id: I59443ca9823588d70822b4f14486caf217a5ac26
Signed-off-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-on: http://review.coreboot.org/1106
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
2012-06-21 08:42:06 +02:00
Nico Huber 0421dc84df libpayload: Add timeouts in the EHCI USB driver
We should always have some timeout when we wait for the hardware. This adds
missing timeouts to the EHCI driver.

Change-Id: I13ba532a6daf47510b16b8fdbe572a21f1d8b09c
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1077
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-06-08 00:01:25 +02:00
Nico Huber 62eb5b3837 libpayload: Add support for interrupt transfers in EHCI
This adds support for usb interrupt transfers in the EHCI driver. Split
transactions are supported, so this enables support for HID keyboards
devices over hubs in high-speed mode.

Change-Id: I9eb08f12b12c67ece10814952cb8651278b02f9d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1083
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-06-07 23:16:35 +02:00
Nico Huber 1ab6075320 libpayload: Add support for split transactions in EHCI
With split transactions, the EHCI host controller can handle full- and
low-speed devices on hubs in high-speed mode. This adds support for split
transactions for control and bulk transfers.

Change-Id: I30fa1ce25757f33b1e6ed34207949c9255f05d49
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: http://review.coreboot.org/1081
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2012-06-07 23:14:18 +02:00
Patrick Georgi 8fa2787a0d libpayload: Remove bitfield use from EHCI data structures
We agreed that bitfields are a Bad Idea[tm].

Change-Id: If4c4cb748af340e2721b89fea8e035da0632971f
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/480
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-by: Peter Stuge <peter@stuge.se>
2012-01-10 00:04:30 +01:00
Patrick Georgi 01178bb03b libpayload: Tell EHCI to re-enable USB1 controllers
EHCI can take over all ports (and then reroute devices to
companion controllers if needs be). We do that, and then never
reset it.

Consequence:
Systems with only USB1 HC drivers (OHCI/UHCI) never see any devices.

Change-Id: If1d91e9142a6618289b0b3f6b56587ec857158e3
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/396
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2011-11-04 22:13:39 +01:00
Patrick Georgi 2e768e7f17 libpayload: Drop usb_fatal()
We have fatal(), which is just as good.

Coccinelle script:
  @@
  expression E;
  @@
  -usb_fatal(E)
  +fatal(E)

Change-Id: Iabecbcc7d068cc0f82687bf51d89c2626642cd86
Signed-off-by: Patrick Georgi <patrick.georgi@secunet.com>
Reviewed-on: http://review.coreboot.org/395
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Tested-by: build bot (Jenkins)
2011-11-04 22:11:05 +01:00
Mathias Krause c4716b4ebf libpayload: Reduce verbosity in USB stack
The USB stack is pretty noisy. Reduce the output to a sane level.

Change-Id: I250949e5cf74a8c6d43822b2e7487143b2ae1c65
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Reviewed-on: http://review.coreboot.org/393
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
2011-11-03 19:14:26 +01:00
Steven A. Falco 9229af963d EHCI driver missing bus_address assignment.
Other USB drivers set the bus_address field.  EHCI should do this too.

Signed-off-by: Steven A. Falco <sfalco@coincident.com>
Change-Id: Ic4274c6744951ef7fa0cb135caf8b9f177d8bcaf
Reviewed-on: http://review.coreboot.org/99
Tested-by: build bot (Jenkins)
Reviewed-by: Peter Stuge <peter@stuge.se>
2011-07-14 03:43:05 +02:00
Stefan Reinauer 528b43db32 coding style cosmetics.
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Acked-by: Stefan Reinauer <stefan.reinauer@coreboot.org>



git-svn-id: svn://svn.coreboot.org/coreboot/trunk@6492 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2011-04-14 19:52:04 +00:00
Patrick Georgi 7f43dc1060 Add an EHCI driver to libpayload's USB stack.
Interrupt transfer support is missing (ie. no keyboard),
bulk and control transfers work (ie. mass storage).

Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5845 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
2010-09-25 17:01:13 +00:00