kernel/linux.git/drivers/usb/dwc3/debug.h, branch v4.14.286

usb: dwc3: debugfs: Properly print/set link state for HS

2019-12-17T19:38:08+00:00

[ Upstream commit 0d36dede457873404becd7c9cb9d0f2bcfd0dcd9 ] Highspeed device and below has different state names than superspeed and higher. Add proper checks and printouts of link states for highspeed and below. Signed-off-by: Thinh Nguyen Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin

usb: dwc3: trace: decode ctrl request

2017-06-02T08:22:29+00:00

Instead of *always* dumping raw ctrl bytes, let's decode standard requests which will make the lives of those debugging DWC3 quite a bit easier. Output will now look like so: irq/34-dwc3-1594 [000] d..1 107.573081: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 107.573694: dwc3_ctrl_req: Set Address(Addr = 01) irq/34-dwc3-1594 [000] d..1 107.588319: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 107.588816: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9) irq/34-dwc3-1594 [000] d..1 107.589191: dwc3_ctrl_req: Set Configuration(Config = 3) irq/34-dwc3-1594 [000] d..1 107.589846: dwc3_ctrl_req: Get BOS Descriptor(Index = 0, Length = 5) irq/34-dwc3-1594 [000] d..1 107.590146: dwc3_ctrl_req: Get BOS Descriptor(Index = 0, Length = 22) irq/34-dwc3-1594 [000] d..1 107.590546: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9) irq/34-dwc3-1594 [000] d..1 107.590840: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 69) irq/34-dwc3-1594 [000] d..1 107.591138: dwc3_ctrl_req: Get Configuration Descriptor(Index = 1, Length = 9) irq/34-dwc3-1594 [000] d..1 107.591541: dwc3_ctrl_req: Get Configuration Descriptor(Index = 1, Length = 32) irq/34-dwc3-1594 [000] d..1 107.591834: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 114.701005: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 114.721080: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 114.722709: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 114.728979: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 114.730544: dwc3_ctrl_req: Get Device Qualifier Descriptor(Index = 0, Length = 10) irq/34-dwc3-1594 [000] d..1 115.776018: dwc3_ctrl_req: Get Configuration Descriptor(Index = 0, Length = 9) irq/34-dwc3-1594 [000] d..1 115.776760: dwc3_ctrl_req: Set Configuration(Config = 0) irq/34-dwc3-1594 [000] d..1 115.777676: dwc3_ctrl_req: Get Configuration(Length = 1) irq/34-dwc3-1594 [000] d..1 115.924797: dwc3_ctrl_req: Get Device Descriptor(Index = 0, Length = 18) irq/34-dwc3-1594 [000] d..1 115.929025: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500) irq/34-dwc3-1594 [000] d..1 115.929566: dwc3_ctrl_req: Get String Descriptor(Index = 1, Length = 500) irq/34-dwc3-1594 [000] d..1 115.930911: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500) irq/34-dwc3-1594 [000] d..1 115.931528: dwc3_ctrl_req: Get String Descriptor(Index = 2, Length = 500) irq/34-dwc3-1594 [000] d..1 115.932950: dwc3_ctrl_req: Get String Descriptor(Index = 0, Length = 500) irq/34-dwc3-1594 [000] d..1 115.933533: dwc3_ctrl_req: Get String Descriptor(Index = 3, Length = 500) Note that Class and Vendor requests won't be decoded for obvious reasons. Those will be printed as a raw sequence of bytes. This patch has been tested against a normal host (both Linux and Windows) and USB30CV Chapter 9 tests. Signed-off-by: Felipe Balbi

usb: dwc3: debug: remove static char buffer from dwc3_decode_event()

2017-06-02T08:22:29+00:00

Instead, we can require caller to pass a buffer for the function to use. This cleans things quite a bit. Signed-off-by: Felipe Balbi

usb: dwc3: expose dwc3_trb_type_string()

2017-04-11T07:58:26+00:00

That helper can be used from our tracepoint interface with very minor edits. Let's do so. Signed-off-by: Felipe Balbi

usb: dwc3: trace: purge dwc3_trace()

2016-11-08T10:52:13+00:00

Finally get rid of dwc3_trace() hack. If any other message is truly needed, we should add proper tracepoints for them instead of hacking around with dwc3_trace() or similar. Signed-off-by: Felipe Balbi

usb: dwc3: don't compile dwc3_trace() unless CONFIG_FTRACE=y

2016-11-03T08:38:29+00:00

We don't need dwc3_trace() unless we're building a kernel with CONFIG_FTRACE. This patch reduces dwc3.ko text size a bit while also removing overhead of dwc3_trace() calls. text data bss dec hex filename 50796 581 0 51377 c8b1 drivers/usb/dwc3/dwc3.o 43961 581 0 44542 adfe drivers/usb/dwc3/dwc3.o.patched Signed-off-by: Felipe Balbi

usb: dwc3: trace: print out ep0state also from XferComplete

2016-10-31T09:17:34+00:00

With this extra piece of information, it will be easier to find mismatches between driver and HW. Signed-off-by: Felipe Balbi

usb: dwc3: debug: move dwc3_ep0_state_string() to debug.h

2016-10-31T09:17:34+00:00

We will be using dwc3_ep0_state_string() from within our tracepoints, so we need to move that helper to debug.h in order for it to be accessible. Signed-off-by: Felipe Balbi

usb: dwc3: debug: decode control endpoint phase too

2016-10-31T09:15:36+00:00

DWC3 can tell us which phase of a setup transfer we're getting into. Let's decode it from the event to make it easier to debug. Signed-off-by: Felipe Balbi

usb: dwc3: debug: fix ep name on trace output

2016-08-25T07:36:25+00:00

There was a typo when generating endpoint name which would be very confusing when debugging. Fix it. Signed-off-by: Felipe Balbi