Commit Graph

128 Commits

Author SHA1 Message Date
Caleb Jamison
59132514cf Add missing functions, Cleanup, Gpout example 2023-05-08 09:45:54 -04:00
pennae
b38d496d51 rp/pio: allow wrap-around program loading
execution wraps around after the end of instruction memory and wrapping
works with this, so we may as well allow program loading across this
boundary. could be useful for reusing chunks of instruction memory.
2023-05-06 21:08:20 +02:00
pennae
8e4d65e163 rp/pio: configure state machines with Config struct
the many individual sets aren't very efficient, and almost no checks
were done to ensure that the configuration written to the hardware was
actually valid. this adresses both of these.
2023-05-06 17:23:41 +02:00
pennae
37b460637d rp/pio: add set-pin-{values,dirs} convenience functions
these are needed a lot during state machine setup, it makes sense to
provide convenience functions for them.
2023-05-06 11:52:25 +02:00
pennae
41ec4170a5 rp/pio: add load_program, use_program
programs contain information we could pull from them directly and use to
validate other configuration of the state machine instead of asking the
user to pull them out and hand them to us bit by bit. unfortunately
programs do not specify how many in or out bits they use, so we can only
handle side-set and wrapping jumps like this. it's still something though.
2023-05-06 11:44:04 +02:00
pennae
8ebe6e5f20 rp/pio: drop Pio prefix from almost all names
it's only any good for PioPin because there it follows a pattern of gpio
pin alternate functions being named like that, everything else can just
as well be referred to as `pio::Thing`
2023-05-05 19:08:16 +02:00
pennae
c44c108db5 rp/pio: wrap sm rx, tx in structs and allow splitting
this *finally* allows sound implementions of bidirectional transfers
without blocking. the futures previously allowed only a single direction
to be active at any given time, and the dma transfers didn't take a
mutable reference and were thus unsound.
2023-05-03 13:00:52 +02:00
pennae
909a5fe2e5 rp/pio: split irqs from state machines
we can only have one active waiter for any given irq at any given time.
allowing waits for irqs on state machines bypasses this limitation and
causes lost events for all but the latest waiter for a given irq.
splitting this out also allows us to signal from state machines to other
parts of the application without monopolizing state machine access for
the irq wait, as would be necessary to make irq waiting sound.
2023-05-03 12:57:21 +02:00
pennae
486fe9e59d rp/pio: remove PioStateMachineInstance
move all methods into PioStateMachine instead. the huge trait wasn't
object-safe and thus didn't have any benefits whatsoever except for
making it *slightly* easier to write bounds for passing around state
machines. that would be much better solved with generics-less instances.
2023-05-03 11:25:58 +02:00
pennae
906d2b2db7 rp/pio: PioStateMachine{Instance, => ,Instance}
next step: get rid of the insance trait entirely
2023-05-03 11:25:58 +02:00
pennae
4ccb2bc95a rp/pio: add PioPin trait
pio can only access pins in bank 0, so it doesn't make sense to even
allow wrapping of other banks' pins.
2023-05-03 11:25:43 +02:00
pennae
7a36072a15 rp/pio: drop SmInstance{,Base}
these are just overly convoluted ways of writing down numbers.
2023-05-02 18:01:18 +02:00
pennae
a167c77d39 rp/pio: make PioCommon a struct
the PioCommon trait does not serve much of a purpose; there can be only
two implementations and they only differ in a few associated constants.
2023-05-02 18:01:18 +02:00
pennae
8839f3f62a rp/pio: PioInstance::split -> Pio::new
not requiring a PioInstance for splitting lets us split from a
PeripheralRef or borrowed PIO as well, mirroring every other peripheral
in embassy_rp. pio pins still have to be constructed from owned pin
instances for now.
2023-05-02 15:52:50 +02:00
pennae
3229b5e809 rp/pio: remove PioPeripheral
merge into PioInstance instead. PioPeripheral was mostly a wrapper
around PioInstance anyway, and the way the wrapping was done required
PioInstanceBase<N> types where PIO{N} could've been used instead.
2023-05-02 15:46:21 +02:00
pennae
8e22d57447 rp/pio: add hd44780 example
add an hd44780 example for pio. hd44780 with busy polling is a pretty
complicated protocol if the busy polling is to be done by the
peripheral, and this example exercises many pio features that we don't
have good examples for yet.
2023-05-02 13:44:24 +02:00
bors[bot]
05c36e05f9
Merge #1414
1414: rp: report errors from buffered and dma uart receives r=Dirbaio a=pennae

neither of these reported errors so far, which is not ideal. add error reporting to both of them that matches the blocking error reporting as closely as is feasible, even allowing partial receives from buffered uarts before errors are reported where they would have been by the blocking code. dma transfers don't do this, if an errors applies to any byte in a transfer the entire transfer is nuked (though we probably could report how many bytes have been transferred).

Co-authored-by: pennae <github@quasiparticle.net>
2023-05-01 15:35:39 +00:00
pennae
b58b9ff390 rp/uart: report errors from dma receive 2023-05-01 15:36:53 +02:00
pennae
f4ade6af8b rp/pio: write instr memory only from common
instruction memory is a shared resource. writing it only from PioCommon
clarifies this, and perhaps makes it more obvious that multiple state
machines can share the same instructions.

this also allows *freeing* of instruction memory to reprogram the
system, although this interface is not entirely safe yet. it's safe in
the sense rusts understands things, but state machines may misbehave if
their instruction memory is freed and rewritten while they are running.
fixing this is out of scope for now since it requires some larger
changes to how state machines are handled. the interface provided
currently is already unsafe in that it lets people execute instruction
memory that has never been written, so this isn't much of a drawback for now.
2023-05-01 12:58:57 +02:00
pennae
58e727d3b9 rp/pio: move non-sm-specific methods to PioCommon
pin and irq operations affect the entire pio block. with pins this is
not very problematic since pins themselves are resources, but irqs are
not treated like that and can thus interfere across state machines. the
ability to wait for an irq on a state machine is kept to make
synchronization with user code easier, and since we can't inspect loaded
programs at build time we wouldn't gain much from disallowing waits from
state machines anyway.
2023-05-01 12:58:57 +02:00
Chuck Davis
49bed094a3
Merge branch 'embassy-rs:master' into master 2023-04-28 13:35:22 -05:00
ceekdee
49ecd8d7c5 Remove external-lora-phy feature. 2023-04-28 13:33:20 -05:00
Ulf Lilleengen
42a8f1671d Bump versions preparing for -macros and -executor release 2023-04-27 11:54:22 +02:00
Dario Nieuwenhuis
d91c37dae3 rp: remove pio Cargo feature.
We shouldn't have Cargo features if their only purpose is reduce cold build time a bit.
2023-04-26 22:39:24 +02:00
ceekdee
f729d2d060 Deprecate original LoRa drivers. Update rust-lorawan releases. 2023-04-25 13:51:19 -05:00
ceekdee
73f25093c7 Add lora-phy examples. 2023-04-23 18:32:34 -05:00
Chuck Davis
a3f727e2e1
Merge branch 'embassy-rs:master' into master 2023-04-23 16:43:45 -05:00
pennae
a4866ad278 rp: add PWM api 2023-04-23 22:49:15 +02:00
ceekdee
0a2f7b4661 Use released lora-phy. 2023-04-21 17:41:25 -05:00
ceekdee
02c86bca52 Add external LoRa physical layer functionality. 2023-04-21 01:20:46 -05:00
pennae
8a9136e4e4 enable inline-asm feature for cortex-m in examples
inline assembly is supported since rust 1.59, we're way past that.
enabling this makes the compiled code more compact, and on rp2040
even decreses memory usage by not needing thunks in sram.
2023-04-18 21:07:36 +02:00
Dario Nieuwenhuis
577f060d24 Release embassy-sync v0.2.0 2023-04-13 23:40:49 +02:00
Dario Nieuwenhuis
be37eee13d Update embedded-hal crates. 2023-04-06 22:41:50 +02:00
Dario Nieuwenhuis
d3c4e4a20a executor: add Pender, rework Cargo features.
This introduces a `Pender` struct with enum cases for thread-mode, interrupt-mode and
custom callback executors. This avoids calls through function pointers when using only
the thread or interrupt executors. Faster, and friendlier to `cargo-call-stack`.

`embassy-executor` now has `arch-xxx` Cargo features to select the arch and to enable
the builtin executors (thread and interrupt).
2023-04-03 03:09:11 +02:00
Caleb Jamison
12d6e37b3f Example using the PIO to drive WS2812 aka Neopixel RGB leds
This example also uses a pio program compiled at runtime, rather than one built at compile time. There's no reason to do that, but it's probably useful to have an example that does this as well.
2023-03-11 02:58:28 -05:00
sekoia
e641db1f75 Fix a typo in "PioPeripheral" 2023-02-15 14:10:07 +01:00
Dario Nieuwenhuis
3af991ab63 usb: unify ControlHandler+DeviceStateHandler, route all control requests to all handlers.
- Allows classes to handle vendor requests.
- Allows classes to use a single handler for multiple interfaces.
- Allows classes to access the other events (previously only `reset` was available).
2023-02-08 00:17:08 +01:00
Dario Nieuwenhuis
fe15a7beee net: allocate space for 2 sockets, needed for dhcp. 2023-01-19 14:44:01 +01:00
Paweł Jan Czochański
8f4fae9b36 Add smoltcp dhcp socket configuration 2023-01-19 14:44:01 +01:00
bors[bot]
b6c8505697
Merge #1142
1142: More rp2040 BufferedUart fixes r=Dirbaio a=timokroeger

* Refactor init code
* Make it possible to drop RX without breaking TX (or vice versa)
* Correctly handle RX buffer full scenario

Co-authored-by: Timo Kröger <timokroeger93@gmail.com>
2023-01-14 00:07:02 +00:00
Pedro Ferreira
6d4c6e0481 rp2040: add {tx,rx}-only constructors to UART 2023-01-04 21:11:19 +01:00
Timo Kröger
a24037edf9 rp: Fix BufferedUart drop code
Only unregister the interrupt handler when both parts are inactive
2023-01-04 15:59:03 +01:00
Dario Nieuwenhuis
41d6316984 rp: switch to released 0.2.1 pio crate. 2022-12-26 22:30:22 +01:00
Dario Nieuwenhuis
1f033d509a net: split driver trait to a separate crate. 2022-12-26 04:49:08 +01:00
Dario Nieuwenhuis
72bb9b53a2 net: remove unused pool-x features 2022-12-26 03:34:05 +01:00
kalkyl
e090ab1915 Remove lifetime, use pac fields 2022-12-24 03:22:51 +01:00
kalkyl
eaad0cc1dc embassy-rp: Add Watchdog 2022-12-24 02:51:06 +01:00
kalkyl
787745188c Change log level to debug 2022-12-23 23:14:58 +01:00
kalkyl
aa92ce6dc7 embassy-rp: Add split() to BufferedUart 2022-12-22 23:03:05 +01:00
Aaron Tsui
5ae91ed3b6 cargo fmt 2022-12-20 14:59:49 +08:00