As spotted by Aneesh, some users pass a NULL opaque so we need to be more
aggressive in checking whether a user means to unregister.

Also fix a double free caused by tag not being reset to zero after delete.
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Add a separate reset function musb_reset() to the usb-musb interface,
so that users who implement a reset function can also reset usb-musb.
Use this in tusb6010.
Signed-off-by: NJuha Riihimäki <juha.riihimaki@nokia.com>
[Riku Voipio: Fixes and restructuring patchset]
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
[Peter Maydell: More fixes and cleanups for upstream submission]
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Initialise usb-musb by passing it a DeviceState* and the offset of the
IRQs in its gpio array, rather than a plain pointer to an irq array.
This is simpler for callers and also allows us to pass in a valid parent
to usb_bus_new(), so the USB bus actually appears in the qdev tree.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Identifiers with double leading underscore are reserved, so rename
__musb_irq_max so we don't encroach on reserved namespace.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch makes qemu assign a port when creating the device, not when
attaching it.  For most usb devices this isn't a noticable difference
because they are in attached state all the time.

The change affects usb-host devices which live in detached state while
the real device is unplugged from the host.  They have a fixed port
assigned all the time now instead of getting grabbing one on attach and
releasing it at detach, i.e. they stop floating around at the usb bus.

The change also allows to simplify usb-hub.  It doesn't need the
handle_attach() callback any more to configure the downstream ports.
This can be done at device initialitation time now.  The changed
initialization order (first grab upstream port, then register downstream
ports) also fixes some icky corner cases.  For example it is not possible
any more to plug the hub into one of its own downstream ports.

The usb host adapters must care too.  USBPort->dev being non-NULL
doesn't imply any more the device is in attached state.  The host
adapters must additionally check the USBPort->dev->attached flag.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Switch the smard card emulation to use the USBDesc*
structs for the usb descriptors.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

The ->complete() callback might have released the USBPacket (uhci
actually does), so we must not touch it after the callback returns.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Unfortunaly this is limited to root ports.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds code to do minimal siTD handling, which is basically
just following the next pointer.  This is good enougth to handle the
inactive siTDs used by FreeBSD.  Active siTDs are skipped too as we
don't have split transfer support in qemu, additionally a warning is
printed.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

USB Devices can have up to 15 IN and 15 OUT endpoints, not 15 endpoints
total.  Move from one array to two arrays (one IN, one OUT) to maintain
the endpoint state.

When configured to pass through a specific host port (using hostbus and
hostport properties), try to claim the port if supported by the kernel.
That will avoid any kernel drivers binding to devices plugged into that
port.  It will not stop any userspace apps (such as usb_modeswitch)
access the device via usbfs though.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

It is perfectly fine to leave the usb device in unconfigured state
(USBHostDevice->configuration == 0).  Just do that and wait for the
guest to explicitly set a configuration.  This is closer to what real
hardware does and it also simplifies the device initialization.  There
is no need to figure how the device is configured on the host.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Limit the number of times qemu tries to open host devices to three.
Reset error counter when the device goes away, after un-plugging and
re-plugging the device qemu will try again three times.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Two fixes for the price of one ;)

First, reinitialize the endpoint table after device reset.
This is needed anyway as the reset might have switched interfaces.
It also clears the endpoint halted state.

Second the CLEAR_HALT ioctl wants a unsigned int passed in as
argument, not uint8_t.

This gets my usb sd card reader (sandisk micromate) going.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Don't report errors on devices which are in disconnected
and closing state.

Add a bunch of trace points to usb-linux.c  Drop a bunch of DPRINTK's in
favor of the trace points.  Also cleanup error reporting a bit while being
at it.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

No change to the CPU kinds, so SMP will only work if
manually changing the cpu to 34Kf:

-cpu 34Kf -smp 2
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

+ some partial support for TC's.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Only TC0 on VPE0 is active after reset. All other VPEs and
TCs start in sleep.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Boards can override the setup if needed.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

1. The pending need to pass the Status IM gating.
2. The priority is from seven (highest prio) down to zero.
   QEMU was doing the opposite.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

These registers share some of their fields. Writes to these fields
should be visible through the corresponding mirror fields.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Introduce mips_cpu_map_tc() to map a global TC index into a VPE nr
and local tc index.
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Reviewed-by: NRichard Henderson  <rth@twiddle.net>
Signed-off-by: NAvi Kivity <avi@redhat.com>