emdtv(4): Fix issues in detach.

- Use config_detach_children, and do it up front, and handle failure
(not relevant for yanking usb but relevant for drvctl which doesn't
pass DETACH_FORCE).

- Fix teardown order: stop interrupts so we stop issuing new work,
and _then_ wait for pending work to drain and destroy the
workqueue.

- Omit needless empty mutex_enter(lock); mutex_exit(lock) dance
which probably only appeared necessary because of the wrong
teardown order.

Merge thorpej-cfargs2.

branches: 1.15.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.14.6;
revert the 0x% -> %# change for fixed width formats pointed out by uwe.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

#include <sys/lwp.h> for curlwp.

The locking should really be fixed.

branches: 1.10.12; 1.10.14; 1.10.18;
- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

branches: 1.9.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

make sure kernel lock is held when calling into usb stack

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.5.2; 1.5.6;
modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

use lg3303_get_snr, lg3303_get_signal_strength

catch up to recent lg3303 changes

Support XC3028 tuner in emdtv.

add emdtv(4), a dtv(4) driver for Empia Technology EM28XX DTV devices

Merge thorpej-cfargs2.

branches: 1.15.8;
Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.14.6;
revert the 0x% -> %# change for fixed width formats pointed out by uwe.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

#include <sys/lwp.h> for curlwp.

The locking should really be fixed.

branches: 1.10.12; 1.10.14; 1.10.18;
- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

branches: 1.9.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

make sure kernel lock is held when calling into usb stack

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.5.2; 1.5.6;
modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

use lg3303_get_snr, lg3303_get_signal_strength

catch up to recent lg3303 changes

Support XC3028 tuner in emdtv.

add emdtv(4), a dtv(4) driver for Empia Technology EM28XX DTV devices

Merge thorpej-cfargs branch:

Simplify and make extensible the config_search() / config_found() /
config_attach() interfaces: rather than having different variants for
which arguments you want pass along, just have a single call that
takes a variadic list of tag-value arguments.

Adjust all call sites:
- Simplify wherever possible; don't pass along arguments that aren't
actually needed.
- Don't be explicit about what interface attribute is attaching if
the device only has one. (More simplification.)
- Add a config_probe() function to be used in indirect configuiration
situations, making is visibly easier to see when indirect config is
in play, and allowing for future change in semantics. (As of now,
this is just a wrapper around config_match(), but that is an
implementation detail.)

Remove unnecessary or redundant interface attributes where they're not
needed.

There are currently 5 "cfargs" defined:
- CFARG_SUBMATCH (submatch function for direct config)
- CFARG_SEARCH (search function for indirect config)
- CFARG_IATTR (interface attribte)
- CFARG_LOCATORS (locators array)
- CFARG_DEVHANDLE (devhandle_t - wraps OFW, ACPI, etc. handles)

...and a sentinel value CFARG_EOL.

Add some extra sanity checking to ensure that interface attributes
aren't ambiguous.

Use CFARG_DEVHANDLE in MI FDT, OFW, and ACPI code, and macppc and shark
ports to associate those device handles with device_t instance. This
will trickle trough to more places over time (need back-end for pre-OFW
Sun OBP; any others?).

branches: 1.14.6;
revert the 0x% -> %# change for fixed width formats pointed out by uwe.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

#include <sys/lwp.h> for curlwp.

The locking should really be fixed.

branches: 1.10.12; 1.10.14; 1.10.18;
- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

branches: 1.9.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

make sure kernel lock is held when calling into usb stack

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.5.2; 1.5.6;
modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

use lg3303_get_snr, lg3303_get_signal_strength

catch up to recent lg3303 changes

Support XC3028 tuner in emdtv.

add emdtv(4), a dtv(4) driver for Empia Technology EM28XX DTV devices

revert the 0x% -> %# change for fixed width formats pointed out by uwe.

PR/55068: sc.dying: Fix printf formats:
- no %s/%p for kernel log
- 0x% -> %#
- always %j for kernel log

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

#include <sys/lwp.h> for curlwp.

The locking should really be fixed.

branches: 1.10.12; 1.10.14; 1.10.18;
- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

branches: 1.9.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

make sure kernel lock is held when calling into usb stack

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.5.2; 1.5.6;
modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

use lg3303_get_snr, lg3303_get_signal_strength

catch up to recent lg3303 changes

Support XC3028 tuner in emdtv.

add emdtv(4), a dtv(4) driver for Empia Technology EM28XX DTV devices

Merge nick-nhusb

- API / infrastructure changes to support memory management changes.
- Memory management improvements and bug fixes.
- HCDs should now be MP safe
- conversion to KERNHIST based debug
- FS/LS isoc support on ehci(4).
- conversion to kmem(9)
- Some USB 3 support - mostly from Takahiro HAYASHI (t-hash).
- interrupt transfers now get proper DMA operations
- general bug fixes
- kern/48308
- uhub status notification improvements
- umass(4) probe fix (applied to HEAD already)
- ohci(4) short transfer fix

#include <sys/lwp.h> for curlwp.

The locking should really be fixed.

branches: 1.10.14; 1.10.18;
- Add a USBD_MPSAFE flag to usbd_open_pipe. If not set, acquire KERNEL_LOCK
before invoking xfer callbacks on this pipe.
- Add an extra flags parameter to usb_init_task. If USBD_TASKQ_MPSAFE is not
present, acquire KERNEL_LOCK before invoking the task callback.

branches: 1.9.2;
minor cleanups from usbmp:
- move usbd_delay_ms() into usbdivar.h in the usb_subr.c section
- minor rcsid fixes
- copyright maintenence

make sure kernel lock is held when calling into usb stack

Revert previous due to active usbmp branch(es).

Adjust-away inconsistent and trailing whitespace.

branches: 1.5.2; 1.5.6;
modify the dtv device api so hardware drivers can be loaded independently
of the dtv module

use lg3303_get_snr, lg3303_get_signal_strength

catch up to recent lg3303 changes

Support XC3028 tuner in emdtv.

add emdtv(4), a dtv(4) driver for Empia Technology EM28XX DTV devices