On Wed, 2012-01-18 at 22:56 +0100, Sebastian Andrzej Siewior wrote: > > This fabric uses the target framework to provide a usb gadget device. > This gadget supports the USB Attached SCSI Protocol (UASP) and Bulk Only > Transfers (BOT or BBB). BOT is the primary interface, UAS is the > alternative interface. > It has been tested with dummy_hcd on HS and SS. On SS USB3 are > supported. I also took my omap device and tried it there against > WindowsXP. > UAS implements basic command passing (i.e. read/write requests) and TASK > MANAGEMENT functions are missing. > I had to add a little of error recovery to BOT because Windows was > issuing some strange commands and it does not complain after the gadget > responded with CSW.status=1. > > Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx> > --- > v2..v3: > - make bot more robust > - use DELAYED_STATUS for synchronization during set_alt instead of magic > tricks with a workqueue > - better handling of invalid commands > > drivers/target/Kconfig | 1 + > drivers/target/Makefile | 1 + > drivers/target/usb-gadget/Kconfig | 10 + > drivers/target/usb-gadget/Makefile | 7 + > drivers/target/usb-gadget/bot.c | 443 +++++++++++++++++++++++ > drivers/target/usb-gadget/configfs.c | 511 +++++++++++++++++++++++++++ > drivers/target/usb-gadget/fabric.c | 638 ++++++++++++++++++++++++++++++++++ > drivers/target/usb-gadget/gadget.c | 533 ++++++++++++++++++++++++++++ > drivers/target/usb-gadget/remove.h | 110 ++++++ > drivers/target/usb-gadget/uas.c | 437 +++++++++++++++++++++++ > drivers/target/usb-gadget/usbg.h | 210 +++++++++++ > drivers/usb/gadget/Kconfig | 3 + > 12 files changed, 2904 insertions(+), 0 deletions(-) > create mode 100644 drivers/target/usb-gadget/Kconfig > create mode 100644 drivers/target/usb-gadget/Makefile > create mode 100644 drivers/target/usb-gadget/bot.c > create mode 100644 drivers/target/usb-gadget/configfs.c > create mode 100644 drivers/target/usb-gadget/fabric.c > create mode 100644 drivers/target/usb-gadget/gadget.c > create mode 100644 drivers/target/usb-gadget/remove.h > create mode 100644 drivers/target/usb-gadget/uas.c > create mode 100644 drivers/target/usb-gadget/usbg.h > > diff --git a/drivers/target/Kconfig b/drivers/target/Kconfig > index 0044492..fc5fa9f 100644 > --- a/drivers/target/Kconfig > +++ b/drivers/target/Kconfig > @@ -40,5 +40,6 @@ source "drivers/target/loopback/Kconfig" > source "drivers/target/tcm_fc/Kconfig" > source "drivers/target/iscsi/Kconfig" > source "drivers/target/tcm_vhost/Kconfig" > +source "drivers/target/usb-gadget/Kconfig" > > endif > diff --git a/drivers/target/Makefile b/drivers/target/Makefile > index f934be6..6b5f526 100644 > --- a/drivers/target/Makefile > +++ b/drivers/target/Makefile > @@ -27,3 +27,4 @@ obj-$(CONFIG_LOOPBACK_TARGET) += loopback/ > obj-$(CONFIG_TCM_FC) += tcm_fc/ > obj-$(CONFIG_ISCSI_TARGET) += iscsi/ > obj-$(CONFIG_TCM_VHOST) += tcm_vhost/ > +obj-$(CONFIG_TARGET_USB_GADGET) += usb-gadget/ > diff --git a/drivers/target/usb-gadget/Kconfig b/drivers/target/usb-gadget/Kconfig > new file mode 100644 > index 0000000..5fdc756 > --- /dev/null > +++ b/drivers/target/usb-gadget/Kconfig > @@ -0,0 +1,10 @@ > +config TARGET_USB_GADGET > + tristate "USB Gadget Fabric Module" > + depends on TARGET_CORE && CONFIGFS_FS Dropping the extra depends on TARGET_CORE && CONFIGFS_FS here, as drivers/target/Kconfig is using 'if TARGET_CORE' with parent level Kconfig.. > + depends on USB_GADGET > + ---help--- > + This fabric is an USB gadget. Two USB protocols are supported that is > + BBB or BOT (Bulk Only Transport) and UAS (USB Attached SCSI). BOT is > + advertised on alternative interface 0 (primary) and UAS is on > + alternative interface 1. Both protocols can work on USB2.0 and USB3.0. > + UAS utilizes the USB 3.0 feature called streams support. > diff --git a/drivers/target/usb-gadget/Makefile b/drivers/target/usb-gadget/Makefile > new file mode 100644 > index 0000000..264b4c7 > --- /dev/null > +++ b/drivers/target/usb-gadget/Makefile > @@ -0,0 +1,7 @@ > +CFLAGS_gadget.o := -I$(srctree)/drivers/usb/gadget > +tcm_usb_gadget-objs := configfs.o \ > + fabric.o \ > + bot.o \ > + uas.o \ > + gadget.o > +obj-$(CONFIG_TARGET_USB_GADGET) += tcm_usb_gadget.o Btw, at some point ahead of RFC for mainline these will need to be condensed into fewer source files, but for now I don't have a objection with the source layout as-is for merging into lio-core for testing.. Nice work on this one! :) --nab -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
