diff options
| -rw-r--r-- | TODO.org | 66 | ||||
| -rw-r--r-- | bootkbd/TODO.org | 5 | ||||
| -rw-r--r-- | samd21-host/TODO.org | 34 |
3 files changed, 39 insertions, 66 deletions
diff --git a/TODO.org b/TODO.org deleted file mode 100644 index fe8fc26..0000000 --- a/TODO.org +++ /dev/null @@ -1,66 +0,0 @@ -* Create trait library. -We'll need traits for both the USB host driver and USB -device/interface drivers. - -Right now everything's pretty tied together with no clean separation, -but aside from a couple painful points it shouldn't be *too* hard to -separate. - -So far we've managed to avoid needing an allocator, but that's -probably gonig to be impossible in the general sense. However, it may -be possible to limit allocation to just the device driver level, which -is more pleasing since it's more fungible. - -* Use trait library for SAMD21/51 host implementation. -Add features for max devices/endpoints to save on memory. - -* Use trait library for boot protocol keyboard driver. -This code currently lives in `device.rs` and is also a disaster. -** Parse configuration descriptors. - - -* control/in/out_transfer probably shouldn't take a `&mut T`. -This is pretty unsafe for functions that shouldn't be unsafe. Instead -we should take a `&mut [u8]` and let callers be unsafe if they want -0-copy. This would also allow us to more easily use variable-length -responses in the few cases those are used. - -* Use channel for interrupt -> task messages. -Currently we use a static mut which holds the latest event. This was -done for expediency to try and get somethnig working and this was -working in Arduino. It's also massively wrong in the general case and -overflowing with race conditions. - -A channel will allow us to deterministically walk events and make sure -everything's ordered properly. - -* Use endpoint packet size on pipe. -The pipe is just using a max packet size of 8 bytes, regardless of -what's on the endpoint. pcksize will need a function to take -max_packet_size and convert it to the variant that is closest without -going over. - -* Clean up pipe descriptor stuff. -There's a bunch of unsafe functions that can be made safe. - -* Some SVD patches needed for SAMD21/51. -There's a lot of `unsafe` code where there shouldn't be, because the -SVD files are lacking. - -* Stop passing millis function around. -This is horrible, but currently necessary because there are places -where we need to loop on a timer at it needs to be -hardware-independent. - -If the USB host library can be made asynchronouse, we could instead -pass a current timestamp around and use that for delays where -necessary. - -As a last resort, there's a countdown timer trait in embedded-hal that -may be useful. - -* Tighten up timings on requests. -There are a few timer checks on USB requests, but not necessarily of -the right duration nor subdivided correctly. For instance, the -setup-with-data cycle has requirements on total duration as well as -per-packet duration, but currently we're only using the total. diff --git a/bootkbd/TODO.org b/bootkbd/TODO.org new file mode 100644 index 0000000..74636e9 --- /dev/null +++ b/bootkbd/TODO.org @@ -0,0 +1,5 @@ +* Parse HID descriptors. +This driver currently assumes a fair amount of behavior on the part of +the keyboard, which, for simple keyboards like the Logitech G105 I'm +testing with, works. More complicated keyboards will probably require +more in-depth probing and feature selection. diff --git a/samd21-host/TODO.org b/samd21-host/TODO.org new file mode 100644 index 0000000..bb8b5b0 --- /dev/null +++ b/samd21-host/TODO.org @@ -0,0 +1,34 @@ +* Use channel for interrupt -> task messages. +Currently we use a static mut which holds the latest event. This was +done for expediency to try and get somethnig working and this was +working in Arduino. It's also massively wrong in the general case and +overflowing with race conditions. + +A channel will allow us to deterministically walk events and make sure +everything's ordered properly. + + +* Clean up pipe descriptor stuff. +There's a bunch of unsafe functions that can be made safe. + +* Some SVD patches needed for SAMD21/51. +There's a lot of `unsafe` code where there shouldn't be, because the +SVD files are lacking. + +* Stop passing millis function around. +This is horrible, but currently necessary because there are places +where we need to loop on a timer at it needs to be +hardware-independent. + +If the USB host library can be made asynchronouse, we could instead +pass a current timestamp around and use that for delays where +necessary. + +As a last resort, there's a countdown timer trait in embedded-hal that +may be useful. + +* Tighten up timings on requests. +There are a few timer checks on USB requests, but not necessarily of +the right duration nor subdivided correctly. For instance, the +setup-with-data cycle has requirements on total duration as well as +per-packet duration, but currently we're only using the total. |