17045: sys/coding: add XOR based coding module r=benpicco a=benpicco
19243: cpu/gd32v: add periph_gpio_ll and periph_gpio_ll_irq support r=benpicco a=gschorcht
### Contribution description
This PR provides the `periph_gpio_ll` and `periph_gpio_ll_irq` support for GD32VF103. Level triggered interrupts are emulated.
`periph_gpio_ll_irq` could be split off from this PR as a separate PR if necessary.
### Testing procedure
Use any GD32V board and connect PA0 -> PB0 and PA1 -> PB1 where PA is the output port and PB the input port. With these connections `tests/periph_gpio_ll` should work.
```
BOARD=sipeed-longan-nano make -j8 -C tests/periph_gpio_ll flash term
```
If necessary, change the input and output pins by setting the environment variables and connect the corresponding pins, for example for `seeedstudio-gd32` PA1 -> PB8 and PA8 -> PB9:
```
PIN_OUT_0=1 PIN_OUT_1=8 PIN_IN_0=8 PIN_IN_1=9 BOARD=seedstudio-gd32 make -j8 -C tests/periph_gpio_ll flash term
```
### Issues/PRs references
Co-authored-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
18903: pkg/tinyusb: add tinyUSB netdev driver r=dylad a=gschorcht
### Contribution description
This PR adds the tinyUSB netdev driver.
The tinyUSB netdev driver is part of the tinyUSB package and is enabled by module `tinyusb_netdev`. It is available for boards that provide the `tinyusb_device` feature.
**Please note** Since the tinyUSB package is distinct from (and incompatible with) the USB stack provided around USBUS in RIOT (see USB), the tinyUSB netdev driver cannot be used together with with any USBUS device class.
The tinyUSB netdev driver uses Ethernet over USB and supports the following protocols:
- CDC ECM (Ethernet Control Model)
- CDC NCM (Network Control Model)
- RNDIS (Microsoft Remote NDIS)
While Linux and macOS support all these protocols, Microsoft Windows only supports the RNDIS protocol and since Windows version 11 also the CDC NCM protocol. macOS supports the RNDIS protocol since version 10.15 (Catalina).
Which protocol is used is selected by the corresponding pseudomodules `tinyusb_class_net_cdc_ecm`, `tinyusb_class_net_cdc_ncm` and `tinyusb_class_net_rndis`.
The CDC ECM protocol (`tinyusb_class_net_cdc_ecm`) and the RNDIS protocol (`tinyusb_class_net_rndis`) can be used simultaneously to support all operating systems, for example :
```
USEMODULE='tinyusb_netdev tinyusb_class_net_rndis tinyusb_class_net_cdc_ecm' \
BOARD=... make -C ... flash
```
In this case, the CDC ECM protocol is the default protocol and the RNDIS protocol the alternative protocol defined as second device configuration. The CDC NCM protocol cannot be used together with the CDC ECM or the RNDIS protocol.
This PR includes PR #18983 for now to be compilable.
Comparison with USBUS CDC ECM (`nucleo-f767zi` board):
```
text data bss dec hex filename
65916 596 18728 85240 14cf8 tests_pkg_tinyusb_netdev.elf
```
```
text data bss dec hex filename
63120 544 15444 79108 13504 tests_usbus_cdc_ecm.elf
```
### Testing procedure
Use a board that is supported by tinyUSB. Compile and flash the test application for each protocol:
1. RNDIS
```
BOARD=... make -j8 -C tests/pkg_tinyusb_netdev flash
```
2. CDC ECM
```
CLASS=tinyusb_class_net_cdc_ecm BOARD=... make -j8 -C tests/pkg_tinyusb_netdev flash
```
3. CDC NCM
```
CLASS=tinyusb_class_net_cdc_ncm BOARD=... make -j8 -C tests/pkg_tinyusb_netdev flash
```
For each test, a network interface should be added on the host. Use command `ifconfig` on USB device and on the host and check that both have a link local address. In syslog there should be an output like the following:
<details>
```
Nov 13 18:14:46 gunny8 kernel: [4611465.480025] usb 1-2.2: new full-speed USB device number 28 using xhci_hcd
Nov 13 18:14:47 gunny8 kernel: [4611465.581641] usb 1-2.2: New USB device found, idVendor=1209, idProduct=7d01, bcdDevice= 1.00
Nov 13 18:14:47 gunny8 kernel: [4611465.581646] usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Nov 13 18:14:47 gunny8 kernel: [4611465.581650] usb 1-2.2: Product: nucleo-f767zi
Nov 13 18:14:47 gunny8 kernel: [4611465.581653] usb 1-2.2: Manufacturer: RIOT-os.org
Nov 13 18:14:47 gunny8 kernel: [4611465.581654] usb 1-2.2: SerialNumber: 6591620BCB270283
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:usb0 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:usb0 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.1066] manager: (usb0): new Ethernet device (/org/freedesktop/NetworkManager/Devices/528)
Nov 13 18:14:47 gunny8 kernel: [4611465.594604] rndis_host 1-2.2:1.0 usb0: register 'rndis_host' at usb-0000:00:14.0-2.2, RNDIS device, fa:db:7c:1b:58:80
Nov 13 18:14:47 gunny8 mtp-probe: checking bus 1, device 28: "/sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2"
Nov 13 18:14:47 gunny8 mtp-probe: bus: 1, device: 28 was not an MTP device
Nov 13 18:14:47 gunny8 systemd-udevd[17796]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:usb0 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 kernel: [4611465.643852] rndis_host 1-2.2:1.0 enp0s20f0u2u2: renamed from usb0
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:usb0 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00001002
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.1833] device (usb0): interface index 508 renamed iface from 'usb0' to 'enp0s20f0u2u2'
Nov 13 18:14:47 gunny8 upowerd[2845]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.1
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2037] device (enp0s20f0u2u2): state change: unmanaged -> unavailable (reason 'managed', sys-iface-state: 'external')
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 vmnetBridge: Adding interface enp0s20f0u2u2 index:508
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2075] device (enp0s20f0u2u2): carrier: link connected
Nov 13 18:14:47 gunny8 upowerd[2845]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2/1-2.2:1.0
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2129] settings: (enp0s20f0u2u2): created default wired connection 'Kabelgebundene Verbindung 2'
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <warn> [1668359687.2142] device (enp0s20f0u2u2): connectivity: "/proc/sys/net/ipv4/conf/enp0s20f0u2u2/rp_filter" is set to "1". This might break connectivity checking for IPv4 on this device
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2151] device (enp0s20f0u2u2): state change: unavailable -> disconnected (reason 'none', sys-iface-state: 'managed')
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 upowerd[2845]: unhandled action 'bind' on /sys/devices/pci0000:00/0000:00:14.0/usb1/1-2/1-2.2
Nov 13 18:14:47 gunny8 systemd-udevd[17796]: link_config: autonegotiation is unset or enabled, the speed and duplex are not writable.
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2403] policy: auto-activating connection 'Kabelgebundene Verbindung 2' (0b1ae45e-c76e-3efb-a2cd-138ca2b2a59c)
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2414] device (enp0s20f0u2u2): Activation: starting connection 'Kabelgebundene Verbindung 2' (0b1ae45e-c76e-3efb-a2cd-138ca2b2a59c)
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2419] device (enp0s20f0u2u2): state change: disconnected -> prepare (reason 'none', sys-iface-state: 'managed')
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2429] device (enp0s20f0u2u2): state change: prepare -> config (reason 'none', sys-iface-state: 'managed')
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2440] device (enp0s20f0u2u2): state change: config -> ip-config (reason 'none', sys-iface-state: 'managed')
Nov 13 18:14:47 gunny8 NetworkManager[24229]: <info> [1668359687.2445] dhcp4 (enp0s20f0u2u2): activation: beginning transaction (timeout in 45 seconds)
Nov 13 18:14:47 gunny8 vmnetBridge: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 vmnet-natd: RTM_NEWLINK: name:enp0s20f0u2u2 index:508 flags:0x00011043
Nov 13 18:14:47 gunny8 avahi-daemon[1464]: Joining mDNS multicast group on interface enp0s20f0u2u2.IPv6 with address fe80::dba4:adb8:9ffe:d93e.
Nov 13 18:14:47 gunny8 avahi-daemon[1464]: New relevant interface enp0s20f0u2u2.IPv6 for mDNS.
Nov 13 18:14:47 gunny8 avahi-daemon[1464]: Registering new address record for fe80::dba4:adb8:9ffe:d93e on enp0s20f0u2u2.*.
Nov 13 18:14:47 gunny8 kernel: [4611465.895046] userif-1: sent link down event.
Nov 13 18:14:47 gunny8 kernel: [4611465.895052] userif-1: sent link up event.
```
</details>
Ping from and to the host.
### Issues/PRs references
Depends on PR https://github.com/RIOT-OS/RIOT/pull/18983
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
17810: drivers/slipdev: implement sleep states r=benpicco a=benpicco
18348: sys/net/gnrc/pktbuf_static: make use of alignas() r=maribu a=maribu
### Contribution description
Since we are now using C11, we can make use of `alignas()` provided by `<stdalign.h>` to make the alignment code easier to read.
### Testing procedure
I didn't expect this to change binaries, but is safes 4 bytes. `elf_diff` shows that the compiler (at least GCC 11.3.0) was not able to detect that `gnrc_pktbuf_static_buf` was just an alias for `_pktbuf_buf`. That makes sense since it would be hard without LTO to rule out external writes to `gnrc_pktbuf_static_buf`, unless one would have added a `const` (to the pointer, not to the data the pointer points to).
The [output of `elf_diff`](https://mari-bu.de/pr_18348_gnrc_pktbuf_static_elf_diff.html) looks otherwise quite unscary.
Also:
```
$ make BOARD=nucleo-f767zi -C tests/unittests/ tests-pktbuf flash test
make: Entering directory '/home/maribu/Repos/software/RIOT/tests/unittests'
Building application "tests_unittests" for "nucleo-f767zi" with MCU "stm32".
[...]
Welcome to pyterm!
Type '/exit' to exit.
READY
s
START
.............................................
OK (45 tests)
make: Leaving directory '/home/maribu/Repos/software/RIOT/tests/unittests'
```
### Issues/PRs references
None
19120: CI: seperate check-labels and check-commits workflows r=maribu a=kaspar030
Co-authored-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Co-authored-by: Kaspar Schleiser <kaspar@schleiser.de>
19048: drivers/sht2x: some small improvements r=benpicco a=gschorcht
### Contribution description
This PR provides the following improvements for the SHT2x driver:
- migration to `ztimer` 8a605517f5343532a4cc25866c9bd18818f17d50 and 367549940de3bd8910052334c34af028d4992741
- floating point arithmetics replaced by integer arithmetics f424caebbfec9f2be56aa2337c6cc09dba5b97d6
- fix of sleep times (typical times replaced by maximum times as recommended by the datasheet) 13615c72094b8541ee62c3e8ed5a36dc4d725fd0
- release of the I2C bus during sleep 9415c216cfab734520ef98dd00b350c22f342c60
- Kconfig configuration of sensor parameters added dadbbcb4c328350893db53ba6743d03cb34ecc1c
- no-hold mode is now the default mode instead of the hold mode
Regarding the sleep times: The typical measurement times were used as sleep times. According to the datasheet, typical measurements are only recommended for calculating energy consumption, while maximum values should be used for calculating waiting times in communication. Therefore, the typical time values were replaced by maximum time values for the sleep in no-hold mode.
Regarding the hold mode: In hold mode, the sensor uses clock stretching until the measurement results can be read by the MCU. This blocks both the I2C bus and the MCU during the entire measurement, which can take up to 85 ms if I2C is not interrupt-driven. Therefore, the no-hold mode is now used by default, where the calling thread sleeps during the measurement, but the MCU is not completely blocked. Furthermore, the hold mode requires that the MCU supports clock stretching. Even if the MCU supports clock stretching, the hold mode with clock stretching doesn't seem to work with different MCUs. I couldn't get it working for STM32 and ESP32.
Regarding the I2C bus during sleep: If the no-hold mode is used and the calling thread sleeps up to 85 ms, it makes sense to release the I2C bus until the measurement results are available.
### Testing procedure
`tests/driver_sht2x` should still work.
### Issues/PRs references
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
According to the data sheet, typical times are recommended for calculating energy consumption, while maximum values should be used for calculating waiting times in communication. Therefore, the typical time values are replaced by maximum time values for sleep.
There are many modem commands for which you get a line of response followed
by an OK. Take for example the AT+CGSN command to get the IMEI of a Ublox
G350.
>> AT+CGSN
<< 004999010640000
<< OK
- most were trivial
- missing group close or open
- extra space
- no doxygen comment
- name commad might open an implicit group
this hould also be implicit cosed but does not happen somtimes
- crazy: internal declared groups have to be closed internal
- replace all `int`s and `unsigned`s with integers with fixed width
- replaced all signed integers of sizes with unsigned ones (sizes
cannot be negative)
- made bitshifts 8-bit safe (e.g. `1 << 24` is valid on 32-bit, but
undefined behavior on 8-bit, as a 16 bit wide `int` would be shifted
by more than the type width)
- use `void *` / `const void *` for data buffers to ease use
