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11 Commits

Author SHA1 Message Date
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
Sean Cross f3e54414e5 litex: ensure we don't re-enable interrups during ISR 
During an interrupt handler, interrupts are implicitly disabled. They
will be re-enabled when the interrupt handler returns.

Due to some changes that were made, varous calls will re-enable
interrupts after they're finished. Examples of this include calling
`CALLBACK_CRITICAL_END` and getting the number of ticks with
`port_get_raw_ticks()`.

This patch prevents this from happening by doing two things:

1. Use standard calls in `port_get_raw_ticks()` to disable and re-enable
interrupts, preventing nesting issues, and
2. Increase the nesting count inside `isr()`, reflecting the implicit
call that is made by hardware when an interrupt is handled

This helps to address #3841.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-24 14:03:10 +08:00
Jeff Epler 6160d11c5a supervisor: factor out, Handle USB via background callback 2020-07-15 11:49:44 -05:00
Scott Shawcroft 755d404edf
Merge remote-tracking branch 'adafruit/master' into lower_power 2020-04-27 16:45:10 -07:00
Scott Shawcroft 67c053e9c4
Add USB include for LiteX 2020-04-24 17:24:05 -07:00
Scott Shawcroft 5c7f6e6211
Remove empty #if and add missing includes. 2020-04-24 11:48:55 -07:00
Scott Shawcroft 5cc8a3ec82
Add back fake us delay. 2020-04-21 14:14:49 -07:00
Scott Shawcroft 7e3d4c61b5
Update TinyUSB and add interrupt hooks. 2020-04-17 14:16:49 -07:00
Sean Cross 6885ffc9af litex: mphalport: add fake mp_hal_delay_us 
Add a mp_hal_delay_us, which is required by some of the modules,
that simply calls mp_hal_delay_ms / 1000.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-04-16 09:26:08 +08:00
Scott Shawcroft 75b7f583d2
Update LiteX APIs for new tick 2020-03-31 17:52:23 -07:00
Sean Cross 786e79ebc9 ports: litex: add port and fomu board 
This adds support for Litex, along with support for the Fomu FPGA board.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-03-31 09:40:38 +08:00