5ec64c5cdd
Store the bus cookie in the mmc_disk driver and pass it to the bus manager when executing commands. This avoids calling into the device manager at each read and write operation. The code to get the cookie from mmc_disk isn't so nice since it needs to access the grandparent device (the mmc bus root), it would be simpler if this cookie would be available directly from mmc bus devices. We can get card removal and card insertion interrupt at the same time due to insufficient hardware debouncing (the SDHCI spec says we shouldn't, but it happens on Ricoh controllers. Can't blame them, they don't advertise themselves as compliant with the spec). So, check the card status from the interrupt handler and ignore the incorrect interrupts. Fix unreliable card initialization: power must be turned on before starting up the SD clock. Remove a now unneeded delay that was added in an attempt to avoid initial instability. Change-Id: Ibd8d051da1a1d859f3924ee535f4a05d9b6398d4 Reviewed-on: https://review.haiku-os.org/c/haiku/+/3639 Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our web-based source code browsers:
- https://xref.landonf.org/ (OpenGrok, provided by Landon Fuller)
- https://git.haiku-os.org/ (git, provided by Haiku, Inc.)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.