From: Li Jun <b47624@xxxxxxxxxxxxx>
This patchset adds USB OTG HNP and SRP support on chipidea usb driver,
existing OTG port role swtich function by ID pin status kept unchanged,
based on that, if select CONFIG_USB_OTG_FSM, OTG HNP and SRP will be
supported.
Reference to:
"On-The-Go and Embedded Host Supplement to the USB Revision 2.0 Specification July 27, 2012
Revision 2.0 version 1.1a"
Changes since v3:
- Move out 2 patches from this patchset, as which are not directly related to
otg fsm.
- Add a new file chipidea.txt under Documentation/usb/ to show how to test
OTG HNP and SRP.
- Directly embed struct otg_fsm into ci_hdrc instead of pointer of otg_fsm.
- Remove flag check in ci_otg_del_timer().
- Remove ADP related code and comments since ADP is not supported by chip.
- Start OTG fsm before request_irq.
- For B-device, do not do OTG fsm transitions when gadget driver
is not registered, and start OTG fsm in register gadget driver.
- Directly call ci_otg_fsm_work() in ci_hdrc_otg_fsm_start().
- Enable data pulse when a_wait_vfall timer time out.
- Update a_wait_vrise time out function.
- UPdate comments of OTG time macro definitions in otg_fsm.h according to
OTG and EH 2.0.
- Some typo correction and comments format changes.
Changes since v2:
- Add ABI document for sysfs input files description:
Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg
- Add a debug file for show some USB registers value.
- Split host driver change to be 2 patches, one for otg_port number init;
the other one for vbus control change.
- Export interrupt enable and status read functions from udc driver.
- Only enable AVV irq in otg fsm init.
- Remove duplicated USBSTS bits definitions.
- Add HowTo demo role switch with 2 Freescale i.MX6Q sabre SD boards
in cover letter.
- typo correction.
Changes since v1:
- Move out HNP polling patch from this series, which will be a seperated patchset
followed this one
- Change fsm timers global variables to be a structure embeded in ci_hdrc,
to make multiple OTG instances can exist in one system
- Change some otg fsm functions to be static
- Re-split timer init patch to avoid a later patch changing a previous one
in the same series
- Change timer structure memory allocation to be devm_kzalloc
- Update some format alignment and spelling errors
Li Jun (11):
usb: chipidea: usb OTG fsm initialization.
usb: chipidea: host: vbus control change for OTG HNP.
usb: chipidea: host: init otg port number.
usb: chipidea: udc: driver update for OTG HNP.
usb: chipidea: add OTG fsm operation functions implemenation.
usb: chipidea: OTG fsm timers initialization.
usb: chipidea: OTG HNP and SRP fsm implementation.
usb: chipidea: add sys inputs for OTG fsm input.
usb: chipidea: debug: add debug file for OTG variables
Documentation: ABI: usb: chipidea USB OTG HNP sysfs
Documentation: usb: add chipidea.txt for how to demo usb OTG HNP and
SRP
.../ABI/testing/sysfs-platform-chipidea-usb-otg | 56 ++
Documentation/usb/chipidea.txt | 69 ++
drivers/usb/chipidea/Makefile | 1 +
drivers/usb/chipidea/bits.h | 11 +-
drivers/usb/chipidea/ci.h | 3 +
drivers/usb/chipidea/core.c | 10 +-
drivers/usb/chipidea/debug.c | 84 ++
drivers/usb/chipidea/host.c | 13 +-
drivers/usb/chipidea/host.h | 9 +
drivers/usb/chipidea/otg.c | 17 +-
drivers/usb/chipidea/otg_fsm.c | 852 ++++++++++++++++++++
drivers/usb/chipidea/otg_fsm.h | 122 +++
drivers/usb/chipidea/udc.c | 17 +-
13 files changed, 1255 insertions(+), 9 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-platform-chipidea-usb-otg
create mode 100644 Documentation/usb/chipidea.txt
create mode 100644 drivers/usb/chipidea/otg_fsm.c
create mode 100644 drivers/usb/chipidea/otg_fsm.h
--
1.7.9.5
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