19539: drivers/periph_sdmmc: define a High-level SDIO/SD/MMC API and low-level SDMMC periperal driver interface r=benpicco a=gschorcht
### Contribution description
This PR provides a SDIO/SD/MMC Device API (SDMMC). It implements a SD host controller driver that provides a high-level functions using a low-level SDIO/SD/MMC peripheral driver for accessing
- MultiMediaCards (MMC) and Embedded MultiMediaCards (eMMC)
- SD Memory Cards (SD Cards) with Standard Capacity (SDSC), High Capacity (SDHC) or Extended Capacity (SDXC).
It supports:
- 1-bit, 4-bit and 8-bit data bus width
- Default Speed and High Speed
- Auto-CLK
The SDIO/SD/MMC device API (SDMMC) is divided into two parts:
1. The high-level API that implements the SD Host Controller driver and allows
- to inititialize and identify different types of cards,
- to access them either blockwise or bytewise,
- to get information about the used card, and
- to send single commands or application specific commands to the card.
2. The low-level SDIO/SD/MMC peripheral driver implements the low-level functions required by the high-level device API. It has to be implemented for each MCU.
### Limitations:
- Only one card per SDIO/SD/MMC device is supported.
- eMMCs specific features are not supported.
- UHS-I, UHS-II and UHS-III are not supported.
### Testing procedure
PR #19540, PR #19760 or PR #19786 is needed to test this PR.
### Issues/PRs references
Prerequisite for PR #19540
Prerequisite for PR #19760
Prerequisite for PR #19786
19815: cpu/sam0_common/periph/sdhc: busy waiting and clock fixes r=benpicco a=benpicco
19860: drivers/ft5x06: fix vendor ID for FT6xx6 and FTxxxx register addresses r=benpicco a=gschorcht
### Contribution description
This PR provides a fix of the vendor ID for FT6xx6 touch panel driver ICs and a fix of register addresses for FTxxxx.
According to the [Application Note for FT6x06 CTPM](https://cdn-shop.adafruit.com/datasheets/FT6x06_AN_public_ver0.1.3.pdf), the vendor ID of FT6x06 touch panel driver ICs is `0x11` instead of `0xcd`. Although there are no information found in the Web about the FT6x36, the FT6336U touch panel of a ESP32-S3 WT32 SC01 Plus is also working with `0x11` as vendor ID so that it seems that FT6x36 is also using `0x11` as vendor ID.
Figured out with a `stm32f723e-disco` board (revision D03). Without this PR, `tests/drivers/ft5x06` gives:
```
+------------Initializing------------+
[ft5x06] init: invalid vendor ID: '0x11' (expected: 0xcd)
[Error] Initialization failed
```
With this PR it works as expected.
```
+------------Initializing------------+
Initialization successful
main(): This is RIOT! (Version: 2023.10-devel-96-gbb9011-drivers/ft5x06_fix_vendor_id)
FT5x06 test application
+------------Initializing------------+
[ft5x06] init: configuring touchscreen interrupt
Initialization successful
1 touch detected
[ft5x06] read gesture_id '0x00'
Touch 1 - X: 151, Y:138
[ft5x06] read gesture_id '0x00'
```
Some background information found in the Web:
- According to the [STM32CubeF7](c20e6dd15b/Drivers/BSP/STM32F723E-Discovery/stm32f723e_discovery_ts.c (L24-L27)) the FRIDA LCD panel mounted on the `stm32f723e-disco` board either uses FT6x36 (prior revision D) or FT3x67 (revision D). However, the FT5x06 driver type for the card is defined as FT6x06, which does not seem correct: bb9011c3fb/boards/stm32f723e-disco/include/board.h (L59)
- According to the [STM32CubeF7](c20e6dd15b/Drivers/BSP/Components/ft6x06/ft6x06.h (L269-L270)), the vendor ID for FT6x36 should be `0xcd`. However, the FT6336U on ESP32-S3 WT32 SC01 Plus works with vendor ID `0x11`.
- The [Adafruit FT6206 library](95118cd983/Adafruit_FT6206.h (L28)) uses `0x11` as vendor id.
- The `stm32l496g-disco` board uses a FT6236 which has vendor ID `0xcd`.
So the information available on the web is confusing. Maybe, a better solution would be to accept `0x11` as well as `0xcd` as vendor ID for FT6xxx touch panels. Unfortunately, there are no documents available on the registers directly from FocalTech 😟 so it seems to be more speculation than knowledge.
### Testing procedure
### Issues/PRs references
19886: cpu/efm32: fix DAC configuration r=benpicco a=gschorcht
### Contribution description
The EFM32 MCU allows the reference voltage to be configured per DAC device, not per DAC channel. Also, the DAC reference voltage was defined in the configuration but not used anywhere.
At the moment we have only defined one board (`stwstk6220a`) that uses the DAC, so changing the configuration interface shouldn't be critical.
### Testing procedure
`tests/periph/dac` should still work for the `stwstk6220a`
```
BOARD=slwstk6220a make -j8 -C tests/periph/dac flash
```
I don't have a `stwstk6220a` board (EFM32 Series 0) so that I can't test it. I could only test it for the `sltb009a` board (EFM32 Series 1) with the change for VDAC in PR #19887.
### Issues/PRs references
Co-authored-by: Gunar Schorcht <gunar@schorcht.net>
Co-authored-by: Benjamin Valentin <benjamin.valentin@ml-pa.com>
19718: drivers/dht: busy wait reimplementation r=benpicco a=hugueslarrive
### Contribution description
In PR #19674, I also provided quick and dirty fixes to restore functionality on esp8266 and enable operation on AVR. While reviewing PR #18591, it became apparent to me that this driver needed a refresh, particularly its migration to ztimer.
The cause of the malfunction on esp8266 was that since the default switch to ztimer as the backend for xtimer, XTIMER_BACKOFF was no longer taken into account. Therefore, the correction I provided in PR #19674 simply made explicit what was previously done implicitly with xtimer and now needs to be done explicitly with ztimer (spinning instead of sleeping).
Moreover, it was unnecessarily complex to measure the pulse duration in a busy-wait implementation, which required 2 calls to ztimer_now() and 32-bit operations expensive on 8-bit architecture. Instead, it is sufficient to read the state of the bus at the threshold moment.
Finally, in practice, it is possible to reduce the read interval (down to less than 0.5s for DHT22) by "harassing" the DHT with start signals until it responds.
This re-implementation brings the following improvements:
- Many backports from `@maribu's` IRQ based implementation (#18591):
- Use of ztimer
- Use of errno.h
- Use of a dht_data structure to pass arguments, to facilitate integration
- Adaptation of the bit parsing technique to parse bits into the data array
- Reintroduction of DHT11/DHT22 differentiation.
- Separation of `dht_read()` steps into functions for better readability and the ability to share certain functions among different implementations
- Sensor presence check in `dht_init()`
- ~~Automatic adjustment to a minimum data hold time~~
- Default input mode changed to open drain (a pull-up resistor should be placed close to the output if necessary but not close to the input)
- AVR support without platform-specific handling by avoiding ztimer_spin() and using the overflow of an 8-bit variable as a pre-timeout to minimize time-consuming ztimer_now() calls
Regarding the changes in the start signal sequence and the removal of the `_reset()` function:
~~In the previous implementation, there was an unnecessary spike at the beginning of the signal sequence, corresponding to START_HIGH_TIME. This spike has been removed in the re-implementation, as it is unnecessary. Instead, the MCU now simply pulls the signal low for START_LOW_TIME and then releases the bus, which is sufficient for initiating communication with the DHT sensor.~~ Actually, it is necessary to raise the bus level; otherwise, the _wait_for_level() called immediately after to check the response of the DHT may read the port before the signal level is raised, resulting in a false positive.
Additionally, the previous implementation had an issue where the MCU switched back to output mode and went high immediately after reading the 40 bits of data. However, the DHT sensor was still transmitting 2 or 3 additional bytes of '0' at that point, causing a conflict. This issue has been resolved in the re-implementation:
~~Regarding the optimization for AVR, I have performed measurements of `_wait_for_level()` until timeout (85 loops):~~
~~- on esp8266-esp-12x: 264 µs, which is 3.11 µs per loop~~
~~- on nucleo-f303k8: 319 µs, which is 3.75 µs per loop~~
~~- on arduino-nano: 3608 µs, which is 42.45 µs per loop~~
~~Duration measurements on the Arduino Nano:~~
19737: dist/tools/openocd: start debug-server in background and wait r=benpicco a=fabian18
19746: buildsystem: Always expose CPU_RAM_BASE & SIZE flags r=benpicco a=Teufelchen1
### Contribution description
Hello 🐧
This moves the definition of `CPU_RAM_BASE/SIZE` from being only available in certain situation to be always available.
Reason for change is to simplify common code in the cpu folder.
In cooperation with `@benpicco`
### Testing procedure
Passing CI
### Issues/PRs references
First usage will be in the PMP driver. Although there is more code in RIOT that could be refactored to use these defines instead of hacks / hardcoded values.
Co-authored-by: Hugues Larrive <hlarrive@pm.me>
Co-authored-by: Fabian Hüßler <fabian.huessler@ml-pa.com>
Co-authored-by: Teufelchen1 <bennet.blischke@outlook.com>
- many backports from @maribu's IRQ based implementation (#18591)
- use of ztimer and errno.h
- separation of dht_read() steps into functions for better readability
- reintroduction of DHT11/DHT22 differentiation
- sensor presence checking in dht_init()
- default input mode changed to open drain
- AVR support without platform-specific handling by avoiding
ztimer_spin() and using the overflow of an 8-bit variable as a
pre-timeout to minimize time-consuming ztimer_now() calls
- add a new DHT11_2022 type for 0.01 °C resolution devices
- data caching removed
19706: boards/olimex-msp430-h2618: add new board r=maribu a=maribu
### Contribution description
This adds support of the Olimex MSP430-H2618 board. This board has plenty of RAM and ROM for an MSP430 board (even more than the z1), but still is easily obtainable.
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@ovgu.de>
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@posteo.net>
19695: drivers/hih6130: avoid using floats r=maribu a=maribu
### Contribution description
- avoid using floating point arithmetic
- use ztimer instead of xtimer
- use fmt to print fixed point numbers in the test app
Co-authored-by: Marian Buschsieweke <marian.buschsieweke@posteo.net>
19585: tests: move leftover sys related tests to test/sys + move tests/sys/candev to tests/drivers r=aabadie a=aabadie
19586: tests: move net related applications to test/net r=aabadie a=aabadie
Co-authored-by: Alexandre Abadie <alexandre.abadie@inria.fr>
