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path: root/drivers/usb
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* ENGR00325203 usb: chipidea: host: check if ci->hcd initialized before access itLi Jun2014-08-01
| | | | | | | | | When ci core driver enable runtime pm in probe, it's possible runtime suspend will be started before otg fsm queue work get to run, in this case, host has not been started yet so ci->hcd is NULL, but suspend routine will access it for save ehci registers, which result in kernle panic, this patch adds pointer valid check. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00323241 usb: chipidea: otg: delay 2s to decrease power.usage_countLi Jun2014-07-18
| | | | | | | | | | There is 2s delay for controller resume from usb wakeup case already, in OTG fsm mode, A-dev can start a new session via sys input file(means not via usb wakeup), in this case, A-dev still need the 2s delay for host root hub access registers, otherwise system will hang due to access register at low power mode. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00322594 usb: chipidea: udc: disconnect gadget for udc restore in ↵Li Jun2014-07-13
| | | | | | | | | non-otg mode This patch adds condition check for gadget disconnect when restore udc, if in otg fsm mode, let otg fsm handle this by otg state machine. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00321224 usb: gadget: composite: try to dequeue cdev->req before free itLi Jun2014-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If cdev->req was queued when remove composite driver, usb_ep_free_request cannot free it, this request may get to run its completion function next time this gadget driver load again, but the memory of completion function symbol is invalid after the driver removal, which will result in kernel panic like below: ... ... ci_hdrc ci_hdrc.0: enabling a non-empty endpoint! root@imx6sxsabresd:~# Unable to handle kernel paging request at virtual address 7f02eb2c pgd = 80004000 [7f02eb2c] *pgd=a8b41811, *pte=00000000, *ppte=00000000 Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM Modules linked in: g_ncm libcomposite configfs ov5642_camera ov5640_camera evbug [last unloaded: configfs] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.31-daily-02005-g914c72a #20 task: 80c7b5c8 ti: 80c70000 task.ti: 80c70000 PC is at 0x7f02eb2c LR is at _ep_nuke+0xdc/0x118 pc : [<7f02eb2c>] lr : [<803e6a90>] psr: 200f0193 sp : 80c71d30 ip : 00000000 fp : a8c1513c r10: a803f608 r9 : 00000000 r8 : a803f5d0 r7 : a8c15134 r6 : a8c1513c r5 : a8c1513c r4 : a8c15100 r3 : 7f02eb2c r2 : 00010101 r1 : a8c15100 r0 : a803f5d0 Flags: nzCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: a92a804a DAC: 00000015 Process swapper/0 (pid: 0, stack limit = 0x80c70238) Stack: (0x80c71d30 to 0x80c72000) 1d20: a803f010 ffffffea 00000001 c08661ac 1d40: 00000000 0000004b a8008900 a803f2f0 a803f010 803e7934 80c71d94 80047614 1d60: 00000000 00000001 80c784e4 a803f010 a803f014 80c83290 81545c00 00000000 1d80: 803e6be0 a803f150 80c6ec00 81545c00 00000000 a803f010 a8008950 00000000 1da0: 00000000 0000004b a8008900 80cc47ce 00000001 803e4810 803e47c0 a83a3140 1dc0: a8008950 80076be0 12d4bd61 00000000 00989680 a8008900 a8008950 a83a3140 1de0: c0802100 80c70000 00000000 80c70000 80c70000 80076d44 a8008900 a8008950 1e00: 80c71f20 80079a10 8007998c 0000004b 0000004b 800763a8 80c6def0 8000e948 1e20: c080210c 80c78904 80c71e48 80008558 800306d8 800306e8 200f0113 ffffffff 1e40: 80c71e7c 8000dc80 00000000 00000000 00000101 80c70000 00000202 00000057 1e60: 00000000 80c72080 80c70000 00000000 80c70000 80c70000 80d072c0 80c71e90 1e80: 800306d8 800306e8 200f0113 ffffffff 00000057 a8009240 80cc47ce 80c6d7a0 1ea0: 00000000 0000000a 80d072c0 80c720c0 ffffac69 80c70010 80c80564 00200000 1ec0: 80c70000 600f0193 00000057 00000000 c0802100 00000000 00000000 80c70000 1ee0: 80c70000 800308b4 80c70030 80030b50 80c6def0 8000e94c c080210c 80c78904 1f00: 80c71f20 80008558 8005cfc0 8044a8bc 600f0013 ffffffff 80c71f54 8000dc80 1f20: 80c71f68 00000055 05ffdea3 00000014 05fc1b18 00000014 81545130 80c7dd68 1f40: 00000000 00000000 80c70000 80c70000 00000017 80c71f68 8005cfc0 8044a8bc 1f60: 600f0013 ffffffff 05ffdea3 00000014 80d1c98c 80c70000 81545130 80d1c98c 1f80: 00000000 80c7dd68 00000000 8044a9fc 00000000 80c78564 806493ac 80c70000 1fa0: 80cc47ba 80c70000 80cc47ba 8000ec68 0000cf94 8005c894 80c70000 80c78480 1fc0: 00000000 80c26a9c ffffffff ffffffff 80c26548 00000000 00000000 80c61770 1fe0: 10c53c7d 80c784e0 80c6176c 80c7c3c4 8000406a 80008074 00000000 00000000 [<803e6a90>] (_ep_nuke+0xdc/0x118) from [<803e7934>] (udc_irq+0x5c8/0xcf4) [<803e7934>] (udc_irq+0x5c8/0xcf4) from [<803e4810>] (ci_irq+0x50/0x118) [<803e4810>] (ci_irq+0x50/0x118) from [<80076be0>] (handle_irq_event_percpu+0x54/0x17c) [<80076be0>] (handle_irq_event_percpu+0x54/0x17c) from [<80076d44>] (handle_irq_event+0x3c/0x5c) [<80076d44>] (handle_irq_event+0x3c/0x5c) from [<80079a10>] (handle_fasteoi_irq+0x84/0x14c) [<80079a10>] (handle_fasteoi_irq+0x84/0x14c) from [<800763a8>] (generic_handle_irq+0x2c/0x3c) [<800763a8>] (generic_handle_irq+0x2c/0x3c) from [<8000e948>] (handle_IRQ+0x40/0x90) [<8000e948>] (handle_IRQ+0x40/0x90) from [<80008558>] (gic_handle_irq+0x2c/0x5c) [<80008558>] (gic_handle_irq+0x2c/0x5c) from [<8000dc80>] (__irq_svc+0x40/0x70) Exception stack(0x80c71e48 to 0x80c71e90) 1e40: 00000000 00000000 00000101 80c70000 00000202 00000057 1e60: 00000000 80c72080 80c70000 00000000 80c70000 80c70000 80d072c0 80c71e90 1e80: 800306d8 800306e8 200f0113 ffffffff [<8000dc80>] (__irq_svc+0x40/0x70) from [<800306e8>] (__do_softirq+0xc8/0x200) [<800306e8>] (__do_softirq+0xc8/0x200) from [<800308b4>] (do_softirq+0x50/0x58) [<800308b4>] (do_softirq+0x50/0x58) from [<80030b50>] (irq_exit+0x9c/0xd0) [<80030b50>] (irq_exit+0x9c/0xd0) from [<8000e94c>] (handle_IRQ+0x44/0x90) [<8000e94c>] (handle_IRQ+0x44/0x90) from [<80008558>] (gic_handle_irq+0x2c/0x5c) [<80008558>] (gic_handle_irq+0x2c/0x5c) from [<8000dc80>] (__irq_svc+0x40/0x70) Exception stack(0x80c71f20 to 0x80c71f68) 1f20: 80c71f68 00000055 05ffdea3 00000014 05fc1b18 00000014 81545130 80c7dd68 1f40: 00000000 00000000 80c70000 80c70000 00000017 80c71f68 8005cfc0 8044a8bc 1f60: 600f0013 ffffffff [<8000dc80>] (__irq_svc+0x40/0x70) from [<8044a8bc>] (cpuidle_enter_state+0x50/0xe0) [<8044a8bc>] (cpuidle_enter_state+0x50/0xe0) from [<8044a9fc>] (cpuidle_idle_call+0xb0/0x148) [<8044a9fc>] (cpuidle_idle_call+0xb0/0x148) from [<8000ec68>] (arch_cpu_idle+0x10/0x54) [<8000ec68>] (arch_cpu_idle+0x10/0x54) from [<8005c894>] (cpu_startup_entry+0x104/0x150) [<8005c894>] (cpu_startup_entry+0x104/0x150) from [<80c26a9c>] (start_kernel+0x324/0x330) Code: bad PC value ---[ end trace 71c853bf79d571a9 ]--- Kernel panic - not syncing: Fatal exception in interrupt Rebooting in 60 seconds.. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00311619 usb: chipidea: core: run resume if controller is at low power modePeter Chen2014-07-04
| | | | | | | | | Controller needs to be active during system suspend, otherwise the core may run resume when the parent is still at suspend if other driver's suspend fails, it occurs before parent's suspend has not started, but the core suspend has finished. Signed-off-by: Peter Chen <peter.chen@freescale.com>
* ENGR00320792-3 usb: gadget: mark init as late_initcallPeter Chen2014-07-04
| | | | | | | | | | | | | | | | | | | Since we introduce -EPROBE_DEFER for udc driver, it will be probed at late_initcall if it is defered. When the gadget is built in, it will return "couldn't find an available UDC" at such case. That's the problem we met at below link: http://marc.info/?l=linux-usb&m=137706435611447&w=2 We have no driver's probe at gadget driver, so we can't return -EPROBE_DEFER. And it is also not suitable to defer udc_bind_to_driver if the udc is not found temporarily, since it is hard to decide the return value for usb_gadget_probe_driver. Due to above reasons, mark gadget's init as late_initcall may be a moderate solution. Signed-off-by: Peter Chen <peter.chen@freescale.com>
* ENGR00320792-2 Revert "drivers: usb: udc-core: add deferred bind for gadget ↵Peter Chen2014-07-04
| | | | | | | | driver" This reverts commit 22392a023eee469a7068f1ea77492d5ab9af14f9. Signed-off-by: Peter Chen <peter.chen@freescale.com>
* ENGR00320792-1 Revert "usb: gadget: remove __init from gadget driver bind ↵Peter Chen2014-07-04
| | | | | | | | function" This reverts commit 6d9f0704e3acf4b754188817974247c1963c1493. Signed-off-by: Peter Chen <peter.chen@freescale.com>
* ENGR00320439-10 usb: phy: mxs: refine phy shutdownLi Jun2014-06-30
| | | | | | | Complete mxs phy shutdown sequence including disable wakeup and auto bits, power down phy and clock gate. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-9 usb: phy: mxs: refine mxs_phy_disconnect_lineLi Jun2014-06-30
| | | | | | | | | For non-otg mode, we keep the usage of disconnect line between phy analog and digital unchanging; for otg mode, at peripheral role, we keep the usage unchanging too, at host role, the digital part needs to know dp/dm change to respond device's data pulse when it is at low power mode. Signed-off-by: Peter Chen <peter.chen@freescale.com>
* ENGR00320439-8 usb: chipidea: otg_fsm: power lost handling for otg fsmLi Jun2014-06-30
| | | | | | This patch adds support for system resume from power lost in otg fsm mode. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-7 usb: chipidea: usb resume from power lost during system sleepLi Jun2014-06-30
| | | | | | | | i.MX6SX mega off can shutdown domain power supply if none of peripheral in this domain is registered as wakeup source, this patch adds chipidea controller re-init after resume from such power lost during system sleep. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-6 usb: chipidea: export ci_handle_id_switch interfaceLi Jun2014-06-30
| | | | | | | Export ci_handle_id_switch interface for handling id change during system sleep with power off. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-5 usb: chipidea: udc: save and restore routine for power lost ↵Li Jun2014-06-30
| | | | | | | | | | of udc Set OP_ENDPTLISTADDR value to be non-zero for power lost check if its value is 0 when suspend. If the controller experienced a power lost in device mode, only force a disconnection if vbus on, and enable vbus irq. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-4 usb: chipidea: host: save and restore for host power lostLi Jun2014-06-30
| | | | | | | | | This patch adds interfaces in role driver to prepare and restore state for power lost in system sleep. For host experienced power lost, we can save required resgisters value before suspend; and restore them after resume. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-3 usb: chipidea: host:add API to check if device connectedLi Jun2014-06-30
| | | | | | | This patch adds interface to check if the host has usb device connected. Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-2 usb: chipidea: host: set ci->hcd to be NULL after stop host role.Li Jun2014-06-30
| | | | | | | Set ci->hcd to be NULL after the hcd is removed. Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320439-1 usb: chipidea: imx: usb resume from power lost during system ↵Li Jun2014-06-30
| | | | | | | | | | | sleep i.MX6SX mega off can shutdown domain power supply if none of peripheral in this domain is registered as wakeup source, this patch adds usb controller imx specific re-init after resume from such power lost during system sleep. Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00320099 usb: chipidea: add vbus glitch handlingLi Jun2014-06-26
| | | | | | | | We add vbus glitch handling for both BSV rise and drop interruptes. If it is a vbus glitch (higher than BSV but cannot reach AVV), ignore it. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00318485-8 usb: chipidea: add condition for wakeup by SRPLi Jun2014-06-26
| | | | | | | | This patch adds condition of wakeup irq for handling wakeup by SRP when in otg fsm mode. Acked-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-7 usb: chipidea: otg_fsm: set host request flag via sys inputLi Jun2014-06-26
| | | | | | | This patch sets host request flag with sys input when a A device sets a_bus_req or a B device sets b_bus_req as peripheral role. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-6 usb: chipidea: otg_fsm: add HNP polling supportLi Jun2014-06-26
| | | | | | | This patch adds HNP polling support for chipidea otg fsm driver, which adds a SW timer to send HNP polling request. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-5 usb: chipidea: udc: add OTG status request handlingLi Jun2014-06-26
| | | | | | | | Peripheral answers OTG status selector request from host according to host request flag of gadget, length is 1. this flag may be set by application via sysfs. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-4 usb: common: otg-fsm: clear host_request_flag when leave host ↵Li Jun2014-06-26
| | | | | | | | state. clear host_request_flag when otg leaves host state. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-3 usb: common: otg-fsm: add HNP polling request sending funcitonLi Jun2014-06-26
| | | | | | | This patch adds OTG status selector request sending function, can be used to poll peripheral if it wants to be host. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00319720-2 usb: common: otg-fsm: start HNP polling timer in host stateLi Jun2014-06-26
| | | | | | | This patch starts HNP polling timer when otg is set to be a_host or b_host. Signed-off-by: Li Jun <b47624@freescale.com>
* usb: gadget: udc-core: move sysfs_notify() to a workqueueFelipe Balbi2014-06-26
| | | | | | | | | | | | | | | | usb_gadget_set_state() will call sysfs_notify() which might sleep. Some users might want to call usb_gadget_set_state() from the very IRQ handler which actually changes the gadget state. Instead of having every UDC driver add their own workqueue for such a simple notification, we're adding it generically to our struct usb_gadget, so the details are hidden from all UDC drivers. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Felipe Balbi <balbi@ti.com> (cherry picked from commit 5702f75375aa9ecf8ad3431aef3fe6ce8c8dbd15)
* usb: chipidea: imx: Use dev_name() for ci_hdrc name to distinguish USBsAlexander Shiyan2014-06-26
| | | | | | | | | Use dev_name() for ci_hdrc name to distinguish USBs Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 5c1b9fcc6598ee492100ad2a19fdb74b35448023)
* usb: chipidea: core: Add missing module owner fieldAlexander Shiyan2014-06-26
| | | | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 35d0313a6d4ffb396b1dad2d62a90ddbb52215bd)
* usb: chipidea: udc: update gadget states according to ch9Peter Chen2014-06-26
| | | | | | | | Update device states according to ch9 in USB 2.0 specification Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 2d189909ecaafe5764609b664d7502b0e68f909b)
* chipidea: usbmisc_imx: Allow USB OTG to work on mx51Fabio Estevam2014-06-26
| | | | | | | | | | | | | | | | | | | | | | | The field PLLDIVVALUE of register PHY_CTRL_1 selects the reference clock source for the PHY: 00 = sysclock uses 19.2 MHz 01 = sysclock uses 24 MHz 10 = sysclock uses 26 MHz 11 = sysclock uses 27 MHz The reset value for this field is 10 according to the reference manual, and even though this reset value works for mx53, it does not work for mx51. So instead of relying on the reset value for the PLLDIVVALUE field, explicitly set it to 01 so that a 24MHz clock can be selected for the PHY and allowing both mx51 and mx53 to have USB OTG port functional. Succesfully tested 'g_ether' on a imx51-babbage and on a imx53-qsb boards. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit c93dad6e3a2204627fa5e7a3f1782007f378b32e)
* usb: chipidea: using one inline function to cover queue work operationsPeter Chen2014-06-26
| | | | | | | | | | The otg queue work include operations: one is disable interrupt, another one is call kernel queue work API. Many codes do this operation, using one inline function to instead of them. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit c8b188d2900a7a9c833f67585cc11e47b47ad6b2)
* usb: chipidea: udc: delete useless codePeter Chen2014-06-26
| | | | | | | | Delete useless code Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 27d47c96c84efa1dc5712c928a6938cf43b5de78)
* usb: chipidea: update TODO listPeter Chen2014-06-26
| | | | | | | | Update TODO list Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit f7eaea58cdbde6e0f4b9ad37c34a59d5c6071464)
* usb: udc-core: set gadget state as not attached after unloading modulePeter Chen2014-06-26
| | | | | | | | | Set gadget state as "not attached" after unloading gadget module, or its state will be unchanged after we unload gadget module. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com> (cherry picked from commit 55331010baeb71bf8eb1d37e4a9cdffca8c34add)
* usb: gadget: set gadget state as configuredPeter Chen2014-06-26
| | | | | | | | | Set gadget device state as configurated after set configuration has finished. Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com> (cherry picked from commit e0d0bb68ea0fcff89f121f64ac9ec953d15ddaa1)
* usb: common: rename phy-fsm-usb.c to usb-otg-fsm.cPeter Chen2014-06-26
| | | | | | | | | | | Since usb otg fsm implementation is not related to usb phy. We move it from usb/phy/ to usb/common/, and rename it to reflect its real meaning. Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 8dc0fda6e5246450c688e2d3e09f9834a4323e01)
* usb: move usb/usb-common.c to usb/common/usb-common.cPeter Chen2014-06-26
| | | | | | | | | | | Since we will have more usb-common things, and it will let usb-common.c be larger and larger, we create a folder named usb/common for all usb common things. Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 04257b0cf4f3f3e4d57ffc0e7731ba1478927da7)
* usb: gadget: remove __init from gadget driver bind functionPeter Chen2014-06-26
| | | | | | | | | Since the .bind may not be called at the driver's initialization routine due to the udc is not ready, we remove __init marker for it. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> (cherry picked from commit 2f12561502a0dab918ff47dfa5bd75236817581a)
* drivers: usb: udc-core: add deferred bind for gadget driverRobert Baldyga2014-06-26
| | | | | | | | | | | | | | | | This patch adds support for deferred gadget driver bind as a remedy for situation when UDC drivers and gadget drivers are builded into the kernel, and gadget driver is loaded as first. Till now, in that case gadget driver loading failed with "No such device" and gadget driver didn't start. Now gadget drivers are added to driver_list and binded later, when UDC drivers will register in udc-core. Signed-off-by: Robert Baldyga <r.baldyga@samsung.com> Signed-off-by: Peter Chen <peter.chen@freescale.com> (cherry picked from commit 3e84ec6493941e6608dca4a7efec68dee8609111)
* usb: chipidea: udc: delete td from req's td list at ep_dequeuePeter Chen2014-06-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to delete un-finished td from current request's td list at ep_dequeue API, otherwise, this non-user td will be remained at td list before this request is freed. So if we do ep_queue-> ep_dequeue->ep_queue sequence, when the complete interrupt for the second ep_queue comes, we search td list for this request, the first td (added by the first ep_queue) will be handled, and its status is still active, so we will consider the this transfer still not be completed, but in fact, it has completed. It causes the peripheral side considers it never receives current data for this transfer. We met this problem when do "Error Recovery Test - Device Configured" test item for USBCV2 MSC test, the host has never received ACK for the IN token for CSW due to peripheral considers it does not get this CBW, the USBCV test log like belows: -------------------------------------------------------------------------- INFO Issuing BOT MSC Reset, reset should always succeed INFO Retrieving status on CBW endpoint INFO CBW endpoint status = 0x0 INFO Retrieving status on CSW endpoint INFO CSW endpoint status = 0x0 INFO Issuing required command (Test Unit Ready) to verify device has recovered INFO Issuing CBW (attempt #1): INFO |----- CBW LUN = 0x0 INFO |----- CBW Flags = 0x0 INFO |----- CBW Data Transfer Length = 0x0 INFO |----- CBW CDB Length = 0x6 INFO |----- CBW CDB-00 = 0x0 INFO |----- CBW CDB-01 = 0x0 INFO |----- CBW CDB-02 = 0x0 INFO |----- CBW CDB-03 = 0x0 INFO |----- CBW CDB-04 = 0x0 INFO |----- CBW CDB-05 = 0x0 INFO Issuing CSW : try 1 INFO CSW Bulk Request timed out! ERROR Failed CSW phase : should have been success or stall FAIL (5.3.4) The CSW status value must be 0x00, 0x01, or 0x02. ERROR BOTCommonMSCRequest failed: error=80004000 Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org> (cherry picked from commit b2a4b1a887548906c4d28a86ce3a1c7bcfb8406f)
* ENGR00310498 usb: chipidea: otg: fix otg role switch from host to device failureLi Jun2014-04-26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix the failure when OTG port switch from host to device mode after removes ID cable with usb device(e.g usb hub) connected. How to reproduce: - Enable console wakeup: echo enabled > /sys/class/tty/ttymxc0/power/wakeup - Connect a usb hub with ID cable to OTG port. - Suspend the system: ehco mem > /sys/power/state - Wakeup the system by console. - Remove ID cable together with usb hub. - OTG port cannot switch to device role. Root cause: In this case, ID change interrupt generates before port change interrupt, so with irq disabled, ci_handle_id_switch() will find there is usb device still connected and wait it to disconnect by sleep, but disconnect will not happen since usb irq still disabled so port change irq has no chance to be handled. How this patch is fixing this issue: This patch enables irq before sleep and disables irq after, thus port change irq can be handled and usb device disconnection can timely happen, then ci_handle_id_switch() can stop host and switch to device role correctly. meanwhile change the delay time to 10~15 ms to avoid too frequent connection check and irq enable/disable. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00309701 usb: phy: otg-fsm: export symbol of otg_statemachineLi Jun2014-04-21
| | | | | | | This patch exports symbol of otg_statemachine for kernel module to use it. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00308631 usb: chipidea: fix oops if unload module too fastPeter Chen2014-04-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a 2s timer once the wakeup occurs, if we unload module within 2s before wakeup occurs, the timer is still active, so we need to delete the timer before the destroy of struct ci_hdrc, otherwise, the below oops will occur. ci_hdrc ci_hdrc.1: remove, state 1 usb usb1: USB disconnect, device number 1 usb 1-1: USB disconnect, device number 2 ci_hdrc ci_hdrc.1: USB bus 1 deregistered ci_hdrc ci_hdrc.1: ci_otg_thread quits Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = a9474000 [00000000] *pgd=a84b1831, *pte=00000000, *ppte=00000000 Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM Modules linked in: ci_hdrc_imx(-) usbmisc_imx ci_hdrc ehci_hcd udc_core phy_mxs_usb evbug [last unloaded: configfs] CPU: 0 PID: 11542 Comm: modprobe Not tainted 3.10.17-01265-ga8a6771-dirty #561 task: a81243c0 ti: a94b4000 task.ti: a94b4000 PC is at 0x0 LR is at call_timer_fn.isra.29+0x24/0x84 pc : [<00000000>] lr : [<8003189c>] psr: 200b0113 sp : a94b5d68 ip : 00000000 fp : 00000000 r10: a94b5d88 r9 : 00000000 r8 : 00200200 r7 : 00000000 r6 : 80c320c0 r5 : 00000100 r4 : a94b4000 r3 : a94b5d68 r2 : a94b5d80 r1 : 00000000 r0 : 00000000 Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c53c7d Table: a947404a DAC: 00000015 Process modprobe (pid: 11542, stack limit = 0xa94b4238) Stack: (0xa94b5d68 to 0xa94b6000) 5d60: 000797ae 00015220 80c2c620 80cc1ac0 00000000 80c320c0 5d80: 80cc22d4 80031ab4 a94b5d88 a94b5d88 00000000 00000101 80c32084 a94b4000 5da0: 00000100 80cc1880 00000000 80c32080 00000001 8002c4b4 000000c3 a8009240 5dc0: 00000004 0000000a 000797af 00404100 018c8300 600b0193 00000057 00000000 5de0: c0802100 8000e2c4 a94b4000 00000000 018c8300 8002c624 a94b4000 8002c898 5e00: 80c2cef0 8000ea04 c080210c 80c38904 a94b5e30 80008538 80115b7c 80115b8c 5e20: a00b0013 ffffffff a94b5e64 8000dd40 80c45808 00000000 00000001 00000000 5e40: a83f8900 00000000 a94b5e98 00000081 8000e2c4 a94b4000 00000000 018c8300 5e60: 00000001 a94b5e78 80115b7c 80115b8c a00b0013 ffffffff 00000000 00000000 5e80: a83f83c0 a83f83c0 a83f83c0 80b349b4 00000000 801140fc a83f83c0 a83f8900 5ea0: 80c56ae8 a83f83c0 a80c4610 80117454 00000000 80c56aa0 a88bc018 8030b9ac 5ec0: ffffffff a88bc010 a80c4610 8030437c a88bc000 a80c4600 a80c4610 80308510 5ee0: 7f7d21c0 a88bc000 a80c4600 803088b4 00000000 7f7c0500 a83c4c10 7f7d21e0 5f00: a80c4610 7f7d3250 a80c4644 8030827c 80308264 80306b70 7f7d3250 a80c4610 5f20: 7f7d3250 80307360 7f7d3290 7f7d3250 80c56710 803069a0 7f7d3290 00000000 5f40: a94b4000 800679d0 00000020 685f6963 5f637264 00786d69 a81243c0 800495b4 5f60: 80c2ceac 00000000 018c8300 80049578 018c8300 8003f614 8000e2c4 000f000f 5f80: a89b7840 004b4000 7f7d3290 00000800 a94b5f94 00000000 018c8300 018c8334 5fa0: 018c8334 8000e140 018c8300 018c8334 018c8334 00000800 7ee8aa50 0002e6b0 5fc0: 018c8300 018c8334 018c8334 00000081 00000001 7ee8be0c 7ee8be04 018c8300 5fe0: 76ebcf40 7ee8aa2c 00019268 76ebcf4c 60070010 018c8334 abf58811 abf58c11 [<8003189c>] (call_timer_fn.isra.29+0x24/0x84) from [<80031ab4>] (run_timer_softirq+0x1b8/0x1cc) [<80031ab4>] (run_timer_softirq+0x1b8/0x1cc) from [<8002c4b4>] (__do_softirq+0xd8/0x1b8) [<8002c4b4>] (__do_softirq+0xd8/0x1b8) from [<8002c624>] (do_softirq+0x4c/0x58) [<8002c624>] (do_softirq+0x4c/0x58) from [<8002c898>] (irq_exit+0x90/0xc8) [<8002c898>] (irq_exit+0x90/0xc8) from [<8000ea04>] (handle_IRQ+0x3c/0x90) [<8000ea04>] (handle_IRQ+0x3c/0x90) from [<80008538>] (gic_handle_irq+0x28/0x5c) [<80008538>] (gic_handle_irq+0x28/0x5c) from [<8000dd40>] (__irq_svc+0x40/0x70) Exception stack(0xa94b5e30 to 0xa94b5e78) 5e20: 80c45808 00000000 00000001 00000000 5e40: a83f8900 00000000 a94b5e98 00000081 8000e2c4 a94b4000 00000000 018c8300 5e60: 00000001 a94b5e78 80115b7c 80115b8c a00b0013 ffffffff [<8000dd40>] (__irq_svc+0x40/0x70) from [<80115b8c>] (sysfs_addrm_finish+0x24/0xd4) [<80115b8c>] (sysfs_addrm_finish+0x24/0xd4) from [<801140fc>] (sysfs_hash_and_remove+0x4c/0x88) [<801140fc>] (sysfs_hash_and_remove+0x4c/0x88) from [<80117454>] (sysfs_unmerge_group+0x40/0x7c) [<80117454>] (sysfs_unmerge_group+0x40/0x7c) from [<8030b9ac>] (dpm_sysfs_remove+0x20/0x3c) [<8030b9ac>] (dpm_sysfs_remove+0x20/0x3c) from [<8030437c>] (device_del+0x34/0x178) [<8030437c>] (device_del+0x34/0x178) from [<80308510>] (platform_device_del+0x14/0xa8) [<80308510>] (platform_device_del+0x14/0xa8) from [<803088b4>] (platform_device_unregister+0xc/0x18) [<803088b4>] (platform_device_unregister+0xc/0x18) from [<7f7c0500>] (ci_hdrc_remove_device+0xc/0x20 [ci_hdrc]) [<7f7c0500>] (ci_hdrc_remove_device+0xc/0x20 [ci_hdrc]) from [<7f7d21e0>] (ci_hdrc_imx_remove+0x20/0xc8 [ci_hdrc_imx]) [<7f7d21e0>] (ci_hdrc_imx_remove+0x20/0xc8 [ci_hdrc_imx]) from [<8030827c>] (platform_drv_remove+0x18/0x1c) [<8030827c>] (platform_drv_remove+0x18/0x1c) from [<80306b70>] (__device_release_driver+0x70/0xcc) [<80306b70>] (__device_release_driver+0x70/0xcc) from [<80307360>] (driver_detach+0xac/0xb0) [<80307360>] (driver_detach+0xac/0xb0) from [<803069a0>] (bus_remove_driver+0x7c/0xc0) [<803069a0>] (bus_remove_driver+0x7c/0xc0) from [<800679d0>] (SyS_delete_module+0x144/0x1f8) [<800679d0>] (SyS_delete_module+0x144/0x1f8) from [<8000e140>] (ret_fast_syscall+0x0/0x30) Code: bad PC value Signed-off-by: Peter Chen <peter.chen@freescale.com> (cherry picked from commit 074c77681ed887825634d693d7bfed6e6919cc5c)
* ENGR00307558-13 usb: chipidea: otg-fsm: enable low power mode for otg fsm mode.Li Jun2014-04-16
| | | | | | This patch enables runtime pm support for otg fsm mode. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00307558-12 usb: chipidea: udc: usb charger handling when otg fsm modeLi Jun2014-04-16
| | | | | | | This patch adds usb charger notify condition when usb otg fsm is enabled, do not do charger notify when doing role switch. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00307558-9 usb: chipidea: debug: add debug file for OTG variablesLi Jun2014-04-16
| | | | | | This patch adds a debug file for OTG vairables show. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00307558-8 usb: chipidea: add sys inputs for OTG fsm input.Li Jun2014-04-16
| | | | | | | This patch adds sys input to control and show OTG fsm inputs by application, user can do host and preipheral role switch by change these inputs. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00307558-7 usb: chipidea: OTG HNP and SRP fsm implementation.Li Jun2014-04-16
| | | | | | | USB OTG interrupt handling and fsm transitions according to USB OTG and EH 2.0. Signed-off-by: Li Jun <b47624@freescale.com>
* ENGR00307558-6 usb: chipidea: OTG fsm timers initialization.Li Jun2014-04-16
| | | | | | | | This patch adds OTG fsm timers initialization, which use controller's 1ms interrupt as timeout counter, also adds some local timers which are not in otg_fsm_timer list. Signed-off-by: Li Jun <b47624@freescale.com>
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-03 13:02:18 -0400