If we've found a device, we attempt to call xpt_action() on a ccb that's
already been released. Simply defer release until after we're done with it.
Reviewed by: imp, scottl
MFC after: 1 week
XPT_DEV_ADVINFO call should be protected by the lock of the specific
device it is addressed to, not the lock of SES device. In some weird
case, probably with hardware violating standards, it sometimes caused
NULL dereference due to race.
To protect from it further, add lock assertion to *_dev_advinfo().
MFC after: 1 week
Sponsored by: iXsystems, Inc.
Unlike SD cards, that publish RCA in response to CMD3,
MMC cards expect the host to set RCA itself.
Since we don't support multiple MMC cards on the bus,
just assign a static RCA of 2 to the attached MMC card.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D13063
Regulator framework doens't like turning off already turned off
regulators, so we get panic on AllWinner boards.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D15890
There's no compelling reason to return a cam_status type for this
function and doing so only creates confusion with normal C
coding practices. It's technically an API change, but the periph API
isn't widely used. No efffective change to operation.
Reviewed by: imp, mav, ken
Sponsored by: Netflix
Differential Revision: D14063
Make it possible to retrieve mmc parameters via the XPT_GET_ADVINFO
call instead. Convert camcontrol to the new scheme.
Reviewed by: imp. kibab
Sponsored by: Netflix
Differential Revision: D13868
This provides a nice wrarpper around the XPT_PATH_INQ ccb creation and
calling.
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D13387
kern.features.mmcam will be present and equal to 1 if the kernel has been
compiled with option MMCCAM.
This will help sdio-related userland tools to fail-fast if running on the kernel
without MMCCAM enabled.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D12386
* Demote the level of several debug messages to CAM_DEBUG_TRACE
* Add detection for SDHC cards that can do 1.8V. No voltage switch sequence
is issued yet;
* Don't create a separate LUN for each SDIO function. We need just one to make
pass(4) attach;
* Remove obsolete mmc_sdio* files. SDIO functionality will be moved into the
separate device that will manage a new sdio(4) bus;
* Terminate probing if got no reply to CMD0;
* Make bcm2835 SDHCI host controller driver compile with 'option MMCCAM'.
Approved by: imp (mentor)
Differential Revision: https://reviews.freebsd.org/D12109
Implement the MMC/SD/SDIO protocol within a CAM framework. CAM's
flexible queueing will make it easier to write non-storage drivers
than the legacy stack. SDIO drivers from both the kernel and as
userland daemons are possible, though much of that functionality will
come later.
Some of the CAM integration isn't complete (there are sleeps in the
device probe state machine, for example), but those minor issues can
be improved in-tree more easily than out of tree and shouldn't gate
progress on other fronts. Appologies to reviews if specific items
have been overlooked.
Submitted by: Ilya Bakulin
Reviewed by: emaste, imp, mav, adrian, ian
Differential Review: https://reviews.freebsd.org/D4761
merge with first commit, various compile hacks.