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  1. 05 2月, 2011 5 次提交
    • D
      USB: EHCI: Remove dead code from ehci-sched.c · fc427a5a
      由 David Daney 提交于 
      The pre-release GCC-4.6 now correctly flags this code as dead.
Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      fc427a5a
    • A
      USB host: Move AMD PLL quirk to pci-quirks.c · b7d5b439
      由 Andiry Xu 提交于 
      This patch moves the AMD PLL quirk code in OHCI/EHCI driver to pci-quirks.c,
and exports the functions to be used by xHCI driver later.

AMD PLL quirk disable the optional PM feature inside specific
SB700/SB800/Hudson-2/3 platforms under the following conditions:

1. If an isochronous device is connected to OHCI/EHCI/xHCI port and is active;
2. Optional PM feature that powers down the internal Bus PLL when the link is
   in low power state is enabled.

Without AMD PLL quirk, USB isochronous stream may stutter or have breaks
occasionally, which greatly impair the performance of audio/video streams.

Currently AMD PLL quirk is implemented in OHCI and EHCI driver, and will be
added to xHCI driver too. They are doing similar things actually, so move
the quirk code to pci-quirks.c, which has several advantages:

1. Remove duplicate defines and functions in OHCI/EHCI (and xHCI) driver and
   make them cleaner;
2. AMD chipset information will be probed only once and then stored.
   Currently they're probed during every OHCI/EHCI initialization, move
   the detect code to pci-quirks.c saves the repeat detect cost;
3. Build up synchronization among OHCI/EHCI/xHCI driver. In current
   code, every host controller enable/disable PLL only according to
   its own status, and may enable PLL while there is still isoc transfer on
   other HCs. Move the quirk to pci-quirks.c prevents this issue.
Signed-off-by: NAndiry Xu <andiry.xu@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alex He <alex.he@amd.com>
Acked-by: NAlan Stern <stern@rowland.harvard.edu>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      b7d5b439
    • F
      usb: gadget/fsl_mxc_udc: Detect the CPU type in run-time · a51ea8cc
      由 Fabio Estevam 提交于 
      Make sure we are running on a MX35 processor.
Signed-off-by: NFabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      a51ea8cc
    • J
      USB: Gadget: Initialize wMaxPacketSize if not already set · 553fbcde
      由 Jassi Brar 提交于 
      Currently, for ISO and INT, a protocol driver must chose the value for
wMaxPacketSize arbitrarily. The value may be too low, resulting in lesser
than efficient operation or high enough to not work with all UDC drivers.

Take un-initialized wMaxPacketSize as a hint to provide maximum
possible packetsize for the selected endpoint. The protocol may
then choose a value not bigger than that.
Signed-off-by: NJassi Brar <jassi.brar@samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      553fbcde
    • V
      USB: serial: mct_u232: added _ioctl, _msr_to_icount and _get_icount functions · 7af75af2
      由 Vadim Tsozik 提交于 
      Added mct_u232_ioctl (implements TIOCMIWAIT command),
mct_u232_get_icount (implements TIOCGICOUNT command) and
mct_u232_msr_to_icount functions. MCT U232 P9 is one of a few usb to
serail adapters which converts USB +/-5v voltage levels to COM +/-15
voltages. So it can also power COM interfaced devices. This makes it
very usable for legacy COM interfaced data-acquisition hardware. I
tested new implementation with AWARE Electronics RM-60 radiation meter,
which sends pulse via RNG COM line whenever new particle is registered.
Signed-off-by: NVadim Tsozik <tsozik@yahoo.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
      7af75af2
  3. 23 1月, 2011 11 次提交
  5. 22 1月, 2011 16 次提交
  7. 21 1月, 2011 8 次提交