From Adrien Destugues <pulkomandy@xxxxxxxxx>:
Adrien Destugues has uploaded this change for review. (
https://review.haiku-os.org/c/haiku/+/1055
Change subject: sdhci and mmc implementation
......................................................................
sdhci and mmc implementation
sdhci:
- Add semaphore for interrupt management
- Add basic operations (setting clock, executing a command)
- Add early initialization (clocks and power up)
- Wrap the bus in a C++ class to ease usage
- Expose API to MMC bus manager
- TODO: manage card insertion and removal interrupts
- TODO: use MSI when available
mmc_bus:
- Implements SD card management independant of the way we access the bus
(later on different drivers can provide the same API as SDHCI)
- Worker thread to do the initialization
- Implement card initialization process up until getting an RCA from the
card. This is the generic part to assign an ID to the card, after this
point commands can be targetted at the specific card so it can be
handed over to the mmc_disk driver.
- TODO: initialization for non-SDHC cards which do not reply to CMD8.
---
A headers/private/drivers/mmc.h
M src/add-ons/kernel/bus_managers/mmc/Jamfile
M src/add-ons/kernel/bus_managers/mmc/mmc_bus.cpp
M src/add-ons/kernel/bus_managers/mmc/mmc_bus.h
M src/add-ons/kernel/bus_managers/mmc/mmc_module.cpp
M src/add-ons/kernel/busses/mmc/Jamfile
M src/add-ons/kernel/busses/mmc/sdhci_pci.cpp
M src/add-ons/kernel/busses/mmc/sdhci_pci.h
8 files changed, 490 insertions(+), 216 deletions(-)
git pull ssh://git.haiku-os.org/haiku refs/changes/55/1055/1
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Gerrit-Project: haiku
Gerrit-Branch: master
Gerrit-Change-Id: Iee4a01ff0a17f148e1f81cb9bf647ac2734ef045
Gerrit-Change-Number: 1055
Gerrit-PatchSet: 1
Gerrit-Owner: Adrien Destugues <pulkomandy@xxxxxxxxx>
Gerrit-MessageType: newchange
