- 03 Aug, 2016 15 commits
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Johan Hovold authored
Give the USB vendor-request timeout define a more descriptive name. Also drop the since-long obsolete comments about allowing "the SVC to do something" and "SVC messages go down our control pipe". Signed-off-by:
Johan Hovold <johan@hovoldconsulting.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@google.com>
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Johan Hovold authored
Add dedicated define for ARPC CPort requests instead of using the default timeout for USB vendor requests. We still allow responses to take 500 ms to arrive, but note that this adds on top of the 500ms already allowed for a requests to be acknowledged. This should probably be tightened up at some point. Signed-off-by:
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Johan Hovold authored
Allow user of ARPC to pass a NULL pointer for the ARPC result. For simple requests there may only be one error code for remote errors, or the caller may simply not care to differentiate them. Signed-off-by:
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Johan Hovold authored
Make sure to always set the result value for ARPC instead of forcing every caller to do it in order to avoid compiler warnings. The ARPC result should still be ignored unless arpc_sync returns -EREMOTEIO. Signed-off-by:
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Johan Hovold authored
Add a _req suffix to request message structures, and a _TYPE_ infix to request type defines. Signed-off-by:
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Johan Hovold authored
The host-device cport_ping callback expects the AP side cport id, but was incorrectly passed the interface cport id. Note that no host-device driver currently implements this callback, and that it is soon even to be removed. Signed-off-by:
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Johan Hovold authored
Remove some no-longer-needed braces around an error path. Signed-off-by:
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Johan Hovold authored
Remove the unused protocol-version messages. Signed-off-by:
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Mark Greer authored
The 'GB_AUDIO_TYPE_GET_TX_DELAY' and 'GB_AUDIO_TYPE_GET_RX_DELAY' are no longer a part of the Greybus Audio Device Class Protocol so remove support for them. The message numbers are not coalesced to prevent compatibility issues between the AP and the module. Testing Done: Played music using a speaker module Signed-off-by:
Mark Greer <mgreer@animalcreek.com> Signed-off-by:
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Mark Greer authored
The 'AUDIO_APBRIDGEA_TYPE_GET_TX_DELAY' and 'AUDIO_APBRIDGEA_TYPE_GET_RX_DELAY' message types have been removed from the AP <-> APBrigdeA Audio Protocol so remove them from the code. Do not coalesce the message type numbers to prevent compatibility issues between the AP and APBridgeA. Testing Done: Played music using a speaker module Signed-off-by:
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Bryan O'Donoghue authored
If we failed to synchronize the FrameTime it would be useful to know how many of the expected strobes arrived, for example a value of 0/5 would indicate the SVC was completely dead but a value of 4/5 would indicate one GPIO pulse got lost i.e. the AP was too slow reacting to an interrupt and completely missed one of the strobe events. In either case the actual number of strobes is a useful thing to print out. Signed-off-by:
Bryan O'Donoghue <bryan.odonoghue@linaro.org> Reviewed-by:
Alex Elder <elder@linaro.org> Reviewed-by:
Vaibhav Hiremath <vaibhav.hiremath@linaro.org> Signed-off-by:
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Bryan O'Donoghue authored
The guard for initiating a new synchronization operation should allow for that resync to happen in every single state except for INVALID. This patch fixes by ensuring the guard does just that. With local testing it was possible to break a sync to a Module. This hasn't been observed in a buglog but should be fixed anyway. Signed-off-by:
David Lin <dtwlin@google.com> Signed-off-by:
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Bryan O'Donoghue authored
It's possible the AP could miss an incoming SVC timesync pulse i.e. the AP could have interrupts switched off for long enough that one SVC GPIO strobe ends up over-lapping another one. TimeSync should be able to deal with this type of transitory failure by retrying a failed synchronous TimeSync resync up to 'n' number of times. For this patch 'n' has been set to five, which is a hand-wavy choice that 'feels' right. Signed-off-by:
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David Lin authored
Instead of using the queue_delayed_work call for delayed work on system_wq, use the schedule_delayed_work helper to be more consistent on the style. Testing Done: - Check SVC watchdog is pining after the change. Signed-off-by:
Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by:
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David Lin authored
There is an issue that when an interface failed to be enabled due to timesync failure, a previously added control device is not deleted as part of the error clean-up. This causes a leak in the sysfs file when the interface is disabled. This would eventually cause this particular interface to be unable to register future control device even after unipro_reset. See failure logs below: [ 906.495261] greybus 1-3.3: failed to add to timesync: -19 [ 906.516497] greybus 1-3.3: failed to re-enable interface: -19 [ 907.016016] greybus 1-3.3: Interface removed ... [ 1623.677343] ------------[ cut here ]------------ [ 1623.681116] WARNING: at kernel/arche/fs/sysfs/dir.c:530 sysfs_add_one+0x98/0xb4() [ 1623.681128] sysfs: cannot create duplicate filename '/bus/greybus/devices/1-3.3.ctrl' [ 1623.681252] Call trace: [ 1623.681265] [<ffffffc000207b40>] dump_backtrace+0x0/0x268 [ 1623.681272] [<ffffffc000207db8>] show_stack+0x10/0x1c [ 1623.681284] [<ffffffc000ccb890>] dump_stack+0x1c/0x28 [ 1623.681295] [<ffffffc00021f9dc>] warn_slowpath_common+0x74/0x9c [ 1623.681301] [<ffffffc00021fa60>] warn_slowpath_fmt+0x5c/0x80 [ 1623.681307] [<ffffffc000366624>] sysfs_add_one+0x94/0xb4 [ 1623.681315] [<ffffffc0003670b4>] sysfs_do_create_link_sd+0x100/0x1c8 [ 1623.681320] [<ffffffc0003671a8>] sysfs_create_link+0x2c/0x38 [ 1623.681332] [<ffffffc0005d5890>] bus_add_device+0xd8/0x190 [ 1623.681338] [<ffffffc0005d39ec>] device_add+0x2b4/0x604 [ 1623.681349] [<ffffffbffc006dfc>] gb_control_add+0x10/0x40 [greybus] [ 1623.681362] [<ffffffbffc003dac>] gb_interface_enable+0x20c/0x3b8 [greybus] [ 1623.681373] [<ffffffbffc002a30>] gb_module_add+0x124/0x174 [greybus] [ 1623.681385] [<ffffffbffc0082cc>] gb_svc_intf_set_power_mode+0xdd4/0xfe8 [greybus] [ 1623.681394] [<ffffffc00023888c>] process_one_work+0x268/0x3c8 [ 1623.681400] [<ffffffc000239a64>] worker_thread+0x204/0x358 [ 1623.681410] [<ffffffc00023f43c>] kthread+0xb8/0xc4 [ 1623.681414] ---[ end trace 44489577dd9220db ]--- [ 1623.681818] greybus 1-3.3.ctrl: failed to register control device: -17 Testing Done: - Continuous unipro_reset stress test Signed-off-by:
Jeffrey Carlyle <jcarlyle@google.com> Signed-off-by:
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- 28 Jul, 2016 7 commits
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Johan Hovold authored
Fix ARPC active-list corruption due to incorrect list-interface usage. The corruption manifested itself as ARPC timeouts due to expected responses not being recognised whenever more than one ARPC was active. This could be seen for example when two interfaces were being runtime suspended in parallel: [ 165.739896] usb 1-1.1: invalid arpc response id received: 13 [ 165.794743] greybus 1-5.5: gb_interface_refclk_set - 0 [ 166.241202] usb 1-1.1: failed to execute ARPC: -110 Fortunately the impact of this bug has so far been limited to such timeouts and error messages due to ARPC currently only being used for CPort reset in the connection tear-down path. Reported-by:
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Johan Hovold authored
Add missing le16_to_cpu() to an ARPC error message in the receive path, and also use %u to print the unsigned id. Signed-off-by:
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Johan Hovold authored
The wrong pointer was checked for allocation failures when allocating the ARPC response buffer, something which would lead to allocation failures going undetected. Signed-off-by:
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Johan Hovold authored
Replace all occurrences of the term "Ara" with "GMP" in core. Signed-off-by:
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Johan Hovold authored
Refer to the MDK as GMP MDK. Signed-off-by:
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Vaibhav Hiremath authored
Inline with other properties used for arche-platform driver, rename ara,init-disable => arche,init-disable. Testing Done: Boot tested on EVT2 platform Signed-off-by:
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Gjorgji Rosikopulos authored
Change ARA prefix to GB_CAM for greyus camera specific formats. Change-Id: I1a0552516e8ea727c48085c59fc49f2409a89486 Signed-off-by:
Gjorgji Rosikopulos <grosikopulos@mm-sol.com> Signed-off-by:
Blagovest Borisov Kolenichev <kolenichev_blagovest@projectara.com> Acked-by:
Laurent Pinchart <laurent.pinchart@linaro.org>
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- 27 Jul, 2016 2 commits
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David Lin authored
There's an issue that the userspace is not able to control both the enumerated control and DAPM widget when audio bundle is in the SUSPEND state. This patch fixes the issue by adding pm_runtime_get/put() calls for the both controls. Testing Done: - Use tinymix to get and put both enumerated control and DAPM widget as the followings, and observe audio bundle is able to wake up from suspend. $ tinymix "GB 3 PB source" 1 $ tinymix "GB 3 PB source" GB 3 PB source: AIF1 >AIF2 $ tinymix "GB 3 AIF1_RX MUX" 2 $ tinymix "GB 3 AIF1_RX MUX" GB 3 AIF1_RX MUX: Stereo Left >Right Reported-by:
Vaibhav Agarwal <vaibhav.agarwal@linaro.org> Signed-off-by:
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David Lin authored
Currently, AP performs unipro_reset if SVC fails to response to its ping. While this error recovery is best suited for the end-user experience, errors in the UniPro network could potentially go unnoticed by the QA and fishfooders in the development phase of the project. This patch adds an option to trigger a kernel panic so logs can be collected for analysis. Testing Done: - Reproduce issue and observe kernel panic when watchdob_control is changed to 'panic' Signed-off-by:
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- 26 Jul, 2016 9 commits
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Viresh Kumar authored
Update documentation and sample application to capture the 'status' byte in backend version operation and new error types in backend firmware update operation. Signed-off-by:
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Viresh Kumar authored
The backend processor may not be ready to return the version of firmware it is running by the time AP requests for it. The greybus specification is updated to return 1-byte 'status' to return the error type, RETRY is one of them. This patch implements that in greybus now. Note that the version structure was common across interface and backend version requests earlier, but that is changing as well. Signed-off-by:
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Viresh Kumar authored
The specification got updated with two more status values, add their support in greybus. As retry isn't really an error, skip printing error messages for it as well. Signed-off-by:
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Viresh Kumar authored
S2 Loader doesn't support runtime PM operations currently and we will fail to suspend/resume the bundle for firmware management protocols. Once that happens, the bundle and its connections will be pretty much useless as we would have tried to disable/enable all connections during such an operation and the S2 loader doesn't expect the connections to go away during normal operation (except in the case of mode-switch). This patch defines a new quirk GB_INTERFACE_QUIRK_NO_PM and uses a new interface init status value (GB_INIT_S2_LOADER_INITIALIZED) which will be advertised by S2 Loader now in the init status. After detecting the currently running stage as S2 Loader, the kernel wouldn't attempt suspending or resuming the bundle. Reviewed-by:
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Viresh Kumar authored
Its a special quirk just for the bootrom as it doesn't have any PM operations implemented. As the greybus bootrom bundle driver doesn't try to do any PM stuff, this quirk is used only to skip bundle activate operation currently. Rename the GB_INTERFACE_QUIRK_NO_PM quirk to GB_INTERFACE_QUIRK_NO_BUNDLE_ACTIVATE to suit its purpose better as the GB_INTERFACE_QUIRK_NO_PM will be used for other quirk now. Reviewed-by:
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Viresh Kumar authored
This patch implements runtime PM support for firmware management bundle. This guarantees that the bundle will be active, while the AP or the Module is trying to exchange any operations over any of the CPorts. - Firmware Management CPort: Runtime PM get/put calls are placed around the ioctl calls, which are all implemented as blocking ioctls. - Component Authentication CPort: Runtime PM get/put calls are placed around the ioctl calls, which are all implemented as blocking ioctls. - SPI: Uses the interface provided by spilib.c and runtime PM get/put are called around connection usage. - firmware-download: This is the most tricky one. All operations on this CPort are initiated from the Module and not from the AP. And the AP needs to do runtime_pm_get() before any request is received over this CPort. The module doesn't send any request over this connection, unless the AP has requested the module over firmware management CPort to download a firmware package over firmware download CPort. And so the runtime PM get/put calls around the ioctls in fw-management.c are sufficient to handle the firmware management CPort as well. Signed-off-by:
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Johan Hovold authored
Clean up the incoming request handler somewhat by passing a properly aligned header and dropping the now redundant id and type parameters. Reviewed-by:
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Johan Hovold authored
The response-received tracepoint is currently broken. Instead of parsing the received message header it was tracing a bunch of zeroed fields from an uninitialised response buffer. Fix this by moving the tracepoint after were the response buffer is initialised. Fixes: 7cb496e6890e ("greybus: tracing: fix message traces") Reviewed-by: -
Johan Hovold authored
The operation type included in the error message printed for malformed responses has never been correct. An uninitialised buffer was used to retrieve the type, resulting in the type always being reported as 0. Fix this by passing a properly aligned header to the response handler, and drop the now redundant id and result parameters. Fixes: cb0ef0c019ab ("operation: print message type on errors") Reviewed-by:
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- 22 Jul, 2016 7 commits
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Philip Yang authored
Modify HID greybus driver to support runtime PM framework. The suspend and resume fucntion have been test with tutorial-hid, e-ink-display and gpbridge-test image by sysfs resume, all HID buttons work well on suspend/resume. Testing Done: Compiled and verified on EVT2, DB3.5, GPB test module with daughter board, Red module. Signed-off-by:Philip Yang <yang_philip@projectara.com> Reviewed-by:
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Viresh Kumar authored
The download_firmware() function isn't downloading the firmware but just finding if one is available or not. The same applies to the error message printed by it. Replace 'download' with 'find' to make it sound better. Reported-by:
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Viresh Kumar authored
We set timeouts using gb_bootrom_set_timeout(), which hides the internal implementation, i.e. workqueues. While canceling timeouts, we do cancel_delayed_work_sync(), which exposes the internal implementation and doesn't look that clean. Create gb_bootrom_cancel_timeout() to hide the internal implementation here as well. Reviewed-by:
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Viresh Kumar authored
A special race is observed in the case where the phone boots with modules attached to it. In that case, the AP processes a later FIRMWARE_SIZE request from the bootrom, before processing the response to the earlier AP_READY request. And because of that, we set the timeout from gb_bootrom_probe() after trying to cancel it from gb_bootrom_firmware_size_request(). And with that, if the firmware package isn't available for the kernel to directly read from, then we get a timeout print message like below: [ 23.669764] bootrom 1-3.3.1: Firmware file 'ara_00000126_00001001_fffe0001_ffe5001a_s2l.tftf' requested [ 24.680528] bootrom 1-3.3.1: Timed out waiting for Firmware Size Request from the Module Note that this doesn't happen if the module is inserted into the frame, after the phone is already booted. This behavior is the result of an earlier commit cdd1cb3f4943 ("operation: add completion work queue"). This perhaps happens only at boot time because the UNBOUND wq (connection->wq) gets a chance to run on other CPUs, while the BOUND wq (gb_operation_completion_wq) doesn't at that stage (24 seconds since boot). Setting the timeout before sending the AP_READY request fixes it for now. Reported-by: -
Viresh Kumar authored
On failing to find a firmware image, we get these today: bootrom 1-3.3.1: Firmware request for ara_00000126_00001001_fffe0001_ffe5001a_s2l.tftf has failed : -12 bootrom 1-3.3.1: gb_bootrom_firmware_size_request: failed to download firmware (-12) Which are more or less duplicate, as they print error for the same root cause. With this patch this is all we get now: bootrom 1-3.3.1: failed to download ara_00000126_00001001_fffe0001_ffe5001a_s2l.tftf firmware (-12) Reported-by:
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Viresh Kumar authored
The currently set value of next_request_type in the error path of gb_bootrom_firmware_size_request() is not correct, as it should have been NEXT_REQ_FIRMWARE_SIZE for the failure case (as we should be waiting for another similar request). But, if an error occurs in gb_bootrom_firmware_size_request(), then the ES3 bootrom will never be able to recover from it and send another request. And so there is no point waiting for another request and timing out. Skip doing that in error path. Reported-by:
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Ann Chen authored
Integrate greybus drivers with the Linux Kernel RuntimePM framework for vibrator driver. Testing Done: AP side (kernel) can control the vibrator driver with suspend and resume. Signed-off-by:
Ann Chen <chen_ann@projectara.com> Reviewed-by:
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