Hi Li,
On 17/07/15 10:48, Li Jun wrote:
Hi, Roger
On Wed, Jul 08, 2015 at 01:19:33PM +0300, Roger Quadros wrote:
The OTG core instantiates the OTG Finite State Machine
per OTG controller and manages starting/stopping the
host and gadget controllers based on the bus state.
It provides
On Fri, 17 Jul 2015, Peter Chen wrote:
There are several benefits for doing like this:
- hc_driver can be customized for each hcd
- Other hcd hc_driver's initialization will not affect current one.
We run out NULL pointer dereference problem when one hcd is started
by module_init, and the
Hi, Roger
On Wed, Jul 08, 2015 at 01:19:33PM +0300, Roger Quadros wrote:
The OTG core instantiates the OTG Finite State Machine
per OTG controller and manages starting/stopping the
host and gadget controllers based on the bus state.
It provides APIs for the following tasks
- Registering
There are several benefits for doing like this:
- hc_driver can be customized for each hcd
- Other hcd hc_driver's initialization will not affect current one.
We run out NULL pointer dereference problem when one hcd is started
by module_init, and the other is started by otg thread at SMP
It is used to configure the ITC (in register USBCMD) value
for kinds of applications.
Signed-off-by: Peter Chen peter.c...@freescale.com
---
Documentation/devicetree/bindings/usb/ci-hdrc-usb2.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git
ITC (Interrupt Threshold Control) is used to set the maximum rate at which
the host/device controller will issue interrupts. The default value is 8 (1ms)
for it. EHCI core will modify it to 1, but device mode keeps it as default
value.
In some use cases like Android ADB, it only has one usb
On 16/07/15 21:29, Andrew Bresticker wrote:
Hi Roger,
On Wed, Jul 15, 2015 at 6:26 AM, Roger Quadros rog...@ti.com wrote:
Hi Andrew,
On 13/07/15 22:14, Andrew Bresticker wrote:
Hi Roger,
On Wed, Jul 8, 2015 at 3:19 AM, Roger Quadros rog...@ti.com wrote:
Usage model:
---
- The
Hi,
On Wed, Jul 08, 2015 at 01:19:36PM +0300, Roger Quadros wrote:
DRD mode is a reduced functionality OTG mode. In this mode
we don't support SRP, HNP and dynamic role-swap.
In DRD operation, the controller mode (Host or Peripheral)
is decided based on the ID pin status. Once a cable plug
On 17/07/15 12:02, Li Jun wrote:
On Wed, Jul 08, 2015 at 01:19:36PM +0300, Roger Quadros wrote:
[...]
struct otg_fsm *usb_otg_register(struct device *parent_dev,
- struct otg_fsm_ops *fsm_ops)
+ struct otg_fsm_ops *fsm_ops,
+
On 13/07/15 04:39, Peter Chen wrote:
On Fri, Jul 10, 2015 at 04:06:43PM +0800, Li Jun wrote:
On Wed, Jul 08, 2015 at 01:19:28PM +0300, Roger Quadros wrote:
Move the state_changed variable into struct otg_fsm
so that we can support multiple instances.
I am not sure if multiple instances may
At host_stop, it will call usb_remove_hcd, and reset controller later.
Signed-off-by: Peter Chen peter.c...@freescale.com
---
drivers/usb/chipidea/otg_fsm.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 19d655a..00ab59d
We can support USB OTG 1.3 USB_DEVICE_A_HNP_SUPPORT request when
the driver supports OTG FSM mode.
Signed-off-by: Peter Chen peter.c...@freescale.com
---
drivers/usb/chipidea/udc.c | 7 +++
1 file changed, 7 insertions(+)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
It is used to configure controller parameters according to
platform data, like speed, stream mode, etc, both host and
device's initialization need it, most of code are the
same for both roles, with this new interface, it can reduce
the duplicated code and be easy to maintain in future.
On Wed, Jul 08, 2015 at 01:19:36PM +0300, Roger Quadros wrote:
[...]
struct otg_fsm *usb_otg_register(struct device *parent_dev,
- struct otg_fsm_ops *fsm_ops)
+ struct otg_fsm_ops *fsm_ops,
+ bool
On 17/07/15 11:14, Li Jun wrote:
Hi,
On Wed, Jul 08, 2015 at 01:19:36PM +0300, Roger Quadros wrote:
DRD mode is a reduced functionality OTG mode. In this mode
we don't support SRP, HNP and dynamic role-swap.
In DRD operation, the controller mode (Host or Peripheral)
is decided based on
btusb currently has a generic match on USB device descriptors:
{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
However, http://www.usb.org/developers/defined_class states:
Base Class E0h (Wireless Controller)
This base class is defined for devices that are Wireless controllers.
Values not
The following changes since commit d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754:
Linux 4.2-rc1 (2015-07-05 11:01:52 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git/ tags/usb-4.2-rc3
for you to fetch changes up to
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