On Sat, Apr 05, 2014 at 01:37:13PM +0800, Li Jun wrote:
> 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 v6:
> - Move ci_hdrc_otg_fsm_start() into ci_hdrc_otg_fsm_init()
Where is the above change?
Peter
> - Call ci_hdrc_otg_fsm_init() in ci_hdrc_probe()
> - Add fsm->protocol init in ci_hdrc_otg_fsm_init()
> - Remove role check in start/stop host/gadget.
> - Add ci_otg_is_fsm_mode() check when start fsm in ci_udc_start().
> - Add struct usb_otg *otg in ci_hdrc_otg_fsm_init() for easy read when
> do init, set otg->host if host role start before otg fsm init(power up
> with ID is 0).
> - set otg->host in host_start() if otg fsm init happens before host start
> (power up with ID is 1) in host.c
> - Add comments of ci_hdrc structure for added fileds(fsm and fsm_timer)
> in ci.h
>
> Changes since v5:
> - Move ci_otg_is_fsm_mode() check into caller functions.
> - Update comments alignment in otg_fsm.h
> - Revert the ci_hdrc_otg_fsm_start() change to be v4
> - Revert the role check removal of start host/gadget to be v4 since
> ci_start_role may be called out of otg fsm.
> - Set controller to be device mode after stop host, to be able to
> generate data pulse correctly.
> - Update some fsm variables to align with otg state.
> - Update test documents for A device start new seesion in step 6):
> need set a_bus_drop to be 0 and set a_bus_req to be 1.
> - Typo fix.
>
> Changes since v4:
> - Fix compile warnings if USB_OTG_FSM is not enabled.
> - Add ci_otg_is_fsm_mode() to replace ci->is_otg for checking if ci is in
> OTG FSM mode.
> - Move ci_hdrc_otg_fsm_start() at end of ci_hdrc_otg_fsm_init().
> - Fix patch splict problem(a later patch changes a previous one).
> - Remove unnecessary role check in start host/gadget.
> - Add {} in start_host.c to fix Coding style problem and declar a variable
> equal to ci->transceiver->otg firstly when init otg port number.
> - Update some driver comments of chipidea drivers if this patchset applied.
>
> 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 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: sysfs Description for chipidea USB OTG HNP
> and SRP
> 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 | 71 ++
> drivers/usb/chipidea/Makefile | 1 +
> drivers/usb/chipidea/bits.h | 10 +
> drivers/usb/chipidea/ci.h | 19 +
> drivers/usb/chipidea/core.c | 13 +-
> drivers/usb/chipidea/debug.c | 84 ++
> drivers/usb/chipidea/host.c | 21 +-
> drivers/usb/chipidea/otg.c | 12 +-
> drivers/usb/chipidea/otg_fsm.c | 853 ++++++++++++++++++++
> drivers/usb/chipidea/otg_fsm.h | 129 +++
> drivers/usb/chipidea/udc.c | 17 +-
> 12 files changed, 1276 insertions(+), 10 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
>
>
--
Best Regards,
Peter Chen
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