diff options
Diffstat (limited to 'Documentation/usb/dwc3.txt')
| -rw-r--r-- | Documentation/usb/dwc3.txt | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/Documentation/usb/dwc3.txt b/Documentation/usb/dwc3.txt index 1d02c01d1c7c..f94a7ba16573 100644 --- a/Documentation/usb/dwc3.txt +++ b/Documentation/usb/dwc3.txt @@ -1,6 +1,11 @@ +=========== +DWC3 driver +=========== + + +TODO +~~~~ - TODO -~~~~~~ Please pick something while reading :) - Convert interrupt handler to per-ep-thread-irq @@ -9,6 +14,7 @@ Please pick something while reading :) until the command completes which is bad. Implementation idea: + - dwc core implements a demultiplexing irq chip for interrupts per endpoint. The interrupt numbers are allocated during probe and belong to the device. If MSI provides per-endpoint interrupt this dummy @@ -19,6 +25,7 @@ Please pick something while reading :) - dwc3_send_gadget_ep_cmd() will sleep in wait_for_completion_timeout() until the command completes. - the interrupt handler is split into the following pieces: + - primary handler of the device goes through every event and calls generic_handle_irq() for event it. On return from generic_handle_irq() in acknowledges the event @@ -40,6 +47,7 @@ Please pick something while reading :) for command completion. Latency: + There should be no increase in latency since the interrupt-thread has a high priority and will be run before an average task in user land (except the user changed priorities). |