7bfd6ee33e
This commit overhauls the CC1101 RF driver to address physical hardware constraints, prevent register wrap-around overflows, and support accurate dBm power scaling via the standard IOCTL interface. What this change does: 1. Adds WLIOC_MSK and WLIOC_4FSK modulation support in `ioctl.h` and driver. 2. Replaces static PATABLE initialization with a dynamic Ramp-up curve generator `cc1101_ioctl_apply_power()` based on lab calibration data. 3. Modifies WLIOC_SETTXPOWER and WLIOC_GETTXPOWER to process actual dBm values with a nearest-match algorithm instead of raw array indices. 4. Removes DEBUGASSERT on user-space IOCTL pointers and replaces them with strict -EFAULT checks. 5. Implements saturation clamping (e.g., mantissa to 256-511) to prevent bitrate and frequency deviation calculation overflows. 6. Rebuilds volatile PATABLE memory upon SLEEP mode wake-up. Why it is necessary & what it fixes: - Fixes severe OOK modulation distortion and FSK spectral splatter caused by statically assigned PATABLE indices. - Fixes potential kernel panic in flat builds when IOCTL receives a NULL pointer from user space. - Fixes register wrap-around (silent failures) when users pass out-of-bounds baud rate or FDEV values. - Prevents RF silence after SLEEP mode due to PATABLE volatility. - Resolves inaccurate power output when changing frequencies dynamically. Impact: Changes the behavior of CC1101 TX power and modulation IOCTLs to strictly comply with standard `wlioc` definitions. Improves overall driver stability and hardware safety. Signed-off-by: Chip L. <chplee@gmail.com> |
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| cmake | ||
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| Documentation | ||
| drivers | ||
| dummy | ||
| fs | ||
| graphics | ||
| include | ||
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| mm | ||
| net | ||
| openamp | ||
| pass1 | ||
| sched | ||
| syscall | ||
| tools | ||
| video | ||
| wireless | ||
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| .pre-commit-config.yaml | ||
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| AUTHORS | ||
| CMakeLists.txt | ||
| CONTRIBUTING.md | ||
| INVIOLABLES.md | ||
| Kconfig | ||
| LICENSE | ||
| Makefile | ||
| NOTICE | ||
| README.md | ||
| ReleaseNotes | ||
Apache NuttX is a real-time operating system (RTOS) with an emphasis on standards compliance and small footprint. Scalable from 8-bit to 64-bit microcontroller environments, the primary governing standards in NuttX are POSIX and ANSI standards. Additional standard APIs from Unix and other common RTOSs (such as VxWorks) are adopted for functionality not available under these standards, or for functionality that is not appropriate for deeply-embedded environments (such as fork()).
For brevity, many parts of the documentation will refer to Apache NuttX as simply NuttX.
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