This reverts the following range of commits:
68168393b9ea61328f4bb43bc3059ab32c4be2e9..ab76828e16b552c82f468e5d89f1af0645258995
Revert "update usb descriptors"
This reverts commit ab76828e16.
Revert "trezorhal: reply with winusb guid just for the main interface (0)"
This reverts commit 6acfc5d1b3.
Revert "winusb: fix WINUSB_EXTRA_STRING"
This reverts commit 966d8cb4ce.
Revert "winusb: cleanup DeviceInterfaceGUIDs usage"
This reverts commit 56c5a46095.
Revert "make winusb_string_descriptor const"
This reverts commit 132cc4b474.
Revert "webusb: remove unused constants"
This reverts commit 38b4d507bc.
Revert "bootloader: remove debug"
This reverts commit 56d3cbe2e9.
Revert "Bootloader - Switch from HID to WebUSB"
This reverts commit a22abfe90b.
Revert "Switch from HID to WebUSB"
This reverts commit cb067bd14c.
Revert "Add WinUSB, WebUSB, USB2.1 to build"
This reverts commit 05e218bcb8.
Revert "Add WebUSB descriptors"
This reverts commit a062127cef.
Revert "Add WinUSB (WebUSB preparation)"
This reverts commit e6981e85cd.
Every 4294967295 milliseconds (2 ^ 32 - 1), system_millis will overflow.
This means that every 49.71 days, system_millis will reset to zero.
Comparisons like `system_millis < (system_millis + 1)` would fail if the
latter had overflown and the former had not.
This is non-critical because the worst case is that one second could be
skipped or the screen could lock early.
This poses no threat to the exponential backoff used for protection
against brute force.
Removed `usbDelay(uint32_t cycles)`, added `usbSleep(uint32_t millis)`
The same method signature could cause silent code breakage at runtime,
as opposed to noisy code breakage at compile time which is the better
kind.
This patch adds calls to usbPoll in the progress callback. This
should address #98.
We call usbDelay instead of Poll, to call usbd_poll several times.
Otherwise it would only handle one event instead of handling all
events that were pending so far. The ugly magic number 5 is a guess.
Note that we also need to set usbTiny, so that we don't recursively
process messages. Since we don't know whether usbTiny is set, we
need to store the old value (especially true for u2f).
This fix also relies on another fix in libopencm3.
Added usbDelay that polls usb port (for system requests) while delaying.
This is called instead of delay in the button and pin delay functions.
Experimental evaluation gave that the cycle count should be roughly divided
by 28.5.
