install mgxreg.h so we can use it from Xorg

Put back all header files defining ioctls

Only install headers which are actually used by our userland. This
saves about 2.2MB under /usr/include/dev/. Discussed on tech-kern@
recently.

I HOPE to get the list right. The headers I left in are ones
used for MI tools and those whose usage I discovered by grep over tree sources.
Feel free to put needed includes back in if you encounter anything which
should not be removed from lists.

branches: 1.2.14; 1.2.26;
Add missing .include <bsd.kinc.mk>

One header to install.

Merge thorpej-cfargs2.

branches: 1.33.8;
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: 1.32.46;
- remove set but unused variable.
- put variables only inside #ifdef inside that same #ifdef.
use __USE() where appropriate.

avoid uninitialized use of defattr

branches: 1.30.2;
support anti-aliased fonts

- only sync the drawing engine when we're about to access video memory
- use the blitter to draw the cursor
- use the glyphcache to minimize vram access
-> about 15% to 20% speedup

branches: 1.28.6;
use rasops_init(0, 0)

branches: 1.27.8; 1.27.12;
This doesn't use uvm(9) API.

Include uvm/uvm_extern.h to access uvmexp. gtmpsc.c doesn't need
uvm(9) API at all.

Don't pull in the whole uvm(9) API to access only PAGE_SIZE and
some other constants. These are provided by sys/param.h now.

branches: 1.24.4;
avoid using PAGE_SIZE directly so sparc/GENERIC builds again

round the space we bus_space_map() up to PAGE_SIZE alignment

Include "ioconf.h" instead of extern struct cfdriver foo_cd decls.

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

call vcons_replay_msgbuf() if we're the console

use BUS_SPACE_MAP_LARGE

struct cfdata * -> cfdata_t, no functional changes intended.

use sparc_bus_map_large() to map the I128 framebuffer

branches: 1.16.2;
fix stride value returned by /dev/fb

branches: 1.15.4;
use device_lookup_private to get softc

branches: 1.14.2;
unbork previous by actually using CFATTACH_DECL_NEW(). Doh.

magic number reduction - no functional change

don't map more video memory than we really need

struct device * -> device_t

branches: 1.10.2;
Convert to new 2 clause license

branches: 1.9.2; 1.9.4;
use aprint_*_dev and device_xname

branches: 1.8.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.7.4; 1.7.6;
clean up a little bit, while there let userland mmap the whole glint video
memory.
Note: this needs changes in the XF86 driver committed a few minutes ago.

branches: 1.6.2; 1.6.4; 1.6.6;
add screen blanking support

attach a /dev/fb* so X can talk to the board

add hardware cursor support

branches: 1.3.2;
let userland mmap() the GLint framebuffer and make it visible when switching
to WSDISPLAYIO_MODE_MAPPED - so X with wsfb can run in 24bit colour

cleanup, fix some typos

add a driver for Fujitsu AG-10e graphics boards
Features so far:
- use the blitter for scrolling and solid fills
- the usual wscons stuff, virtual consoles etc.
Things missing:
- /dev/fb* support
- XFree86 support although wsfb in 8bit should work
- hardware cursor support for X
- character drawing in hardware so we can run the blitter completely
asynchronous

These drivers can use ether_getaddr() instead of prom_getether() now.

Remove unnecessary include of <sys/malloc.h>.

Remove unnecessary inclusion of <net/netisr.h>.

Don't bother with IFF_OACTIVE. Just keep processing so long as
sc->sc_rb.rb_td_nbusy is less than sc->sc_rb.rb_ntbuf.

Adopt <net/if_stats.h>.

branches: 1.94.4;
Even if we don't use MII(4), use the common path of SIOC[GS]IFMEDIA in
sys/net/if_ethersubr.c if we can.
- Add ec_ifmedia into struct ethercom.
- ec_mii in struct ethercom is kept and used as it is. It might be used in
future. Note that some Ethernet drivers which _DOESN'T_ use mii(4) use
ec_mii for keeping the if_media. Those should be changed in future.

Use ETHER_LOCK()/ETHER_UNLOCK() for all ethernet drivers to protect ec_multi*.

No functional change:
- u_int_{8,16,32}_t -> uint_{8,16,32}_t
- KNF.
- Tabify.
- Remove extra space.

Remove very old IFF_NOTRAILERS flag.

Change MII PHY read/write API from:

int (*mii_readreg_t)(device_t, int, int);
void (*mii_writereg_t)(device_t, int, int, int);
to:

int (*mii_readreg_t)(device_t, int, int, uint16_t *);
int (*mii_writereg_t)(device_t, int, int, uint16_t);

Now we can test if a read/write operation failed or not by the return value.

In 802.3 spec says that the PHY shall not respond to read/write transaction
to the unimplemented register(22.2.4.3). Detecting timeout can be used to
check whether a register is implemented or not (if the register conforms to
the spec). ukphy(4) can be used this for MII_MMDACR and MII_MMDAADR.

Note that I noticed that the following code do infinite loop in the
read/wirte function. If it accesses unimplemented PHY register, it will hang.
It should be fixed:

arm/at91/at91emac.c
arm/ep93xx/epe.c
arm/omap/omapl1x_emac.c
mips/ralink/ralink_eth.c
arch/powerpc/booke/dev/pq3etsec.c(read)
dev/cadence/if_cemac.c <- hkenken
dev/ic/lan9118.c


Tested with the following device:

axe+ukphy
axe+rgephy
axen+rgephy (tested by Andrius V)
wm+atphy
wm+ukphy
wm+igphy
wm+ihphy
wm+makphy
sk+makphy
sk+brgphy
sk+gentbi
msk+makphy
sip+icsphy
sip+ukphy
re+rgephy
bge+brgphy
bnx+brgphy
gsip+gphyter
rtk+rlphy
fxp+inphy (tested by Andrius V)
tlp+acphy
ex+exphy
epic+qsphy
vge+ciphy (tested by Andrius V)
vr+ukphy (tested by Andrius V)
vte+ukphy (tested by Andrius V)

Not tested (MAC):
arm:at91emac
arm:cemac
arm:epe
arm:geminigmac
arm:enet
arm:cpsw
arm:emac(omac)
arm:emac(sunxi)
arm:npe
evbppc:temac
macppc:bm
macppc:gm
mips:aumac
mips:ae
mips:cnmac
mips:reth
mips:sbmac
playstation2:smap
powerpc:tsec
powerpc:emac(ibm4xx)
sgimips:mec
sparc:be
sf
ne(ax88190, dl10019)
awge
ep
gem
hme
smsh
mtd
sm
age
alc
ale
bce
cas
et
jme
lii
nfe
pcn
ste
stge
tl
xi
aue
mue
smsc
udav
url

Not tested (PHY):
amhphy
bmtphy
dmphy
etphy
glxtphy
ikphy
iophy
lxtphy
nsphyter
pnaphy
rdcphy
sqphy
tlphy
tqphy
urlphy

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.88.2;
Implement the BPF direction filter (BIOC[GS]DIRECTION). It provides backward
compatibility with BIOC[GS]SEESENT ioctl. The userland interface is the same
as FreeBSD.

This change also fixes a bug that the direction is misunderstand on some
environment by passing the direction to bpf_mtap*() instead of checking
m->m_pkthdr.rcvif.

It's not required to include net/bpfdesc.h. Remove it.

branches: 1.86.4;
spl leak, found by Mootja a long time ago

branches: 1.85.8;
Move bpf_mtap and if_ipackets++ on Rx of each driver to percpuq if_input

The benefits of the change are:
- We can reduce codes
- We can provide the same behavior between drivers
- Where/When if_ipackets is counted up
- Note that some drivers still update packet statistics in their own
way (periodical update)
- Moved bpf_mtap run in softint
- This makes it easy to MP-ify bpf

Proposed on tech-kern and tech-net

MFREE -> m_free

branches: 1.83.2;
Introduce m_set_rcvif and m_reset_rcvif

The API is used to set (or reset) a received interface of a mbuf.
They are counterpart of m_get_rcvif, which will come in another
commit, hide internal of rcvif operation, and reduce the diff of
the upcoming change.

No functional change.

Introduce softint-based if_input

This change intends to run the whole network stack in softint context
(or normal LWP), not hardware interrupt context. Note that the work is
still incomplete by this change; to that end, we also have to softint-ify
if_link_state_change (and bpf) which can still run in hardware interrupt.

This change softint-ifies at ifp->if_input that is called from
each device driver (and ieee80211_input) to ensure Layer 2 runs
in softint (e.g., ether_input and bridge_input). To this end,
we provide a framework (called percpuq) that utlizes softint(9)
and percpu ifqueues. With this patch, rxintr of most drivers just
queues received packets and schedules a softint, and the softint
dequeues packets and does rest packet processing.

To minimize changes to each driver, percpuq is allocated in struct
ifnet for now and that is initialized by default (in if_attach).
We probably have to move percpuq to softc of each driver, but it's
future work. At this point, only wm(4) has percpuq in its softc
as a reference implementation.

Additional information including performance numbers can be found
in the thread at tech-kern@ and tech-net@:
http://mail-index.netbsd.org/tech-kern/2016/01/14/msg019997.html

Acknowledgment: riastradh@ greatly helped this work.
Thank you very much!

Convert sys/dev to use <sys/rndsource.h>.

branches: 1.80.8; 1.80.10;
Don't "return" but "break" in MII_TICK when the interface isn't doing
autonegotiaton or the link is up to update the status.

branches: 1.79.2;
Fix mii_statchg to take a 'struct ifnet *' instead of device_t. This fixes
problem with a common MDIO bus used for multiple interfaces.
Some drivers converted to CFATTACL_DECL_NEW.

branches: 1.78.2;
Entropy-pool implementation move and cleanup.

1) Move core entropy-pool code and source/sink/sample management code
to sys/kern from sys/dev.

2) Remove use of NRND as test for presence of entropy-pool code throughout
source tree.

3) Remove use of RND_ENABLED in device drivers as microoptimization to
avoid expensive operations on disabled entropy sources; make the
rnd_add calls do this directly so all callers benefit.

4) Fix bug in recent rnd_add_data()/rnd_add_uint32() changes that might
have lead to slight entropy overestimation for some sources.

5) Add new source types for environmental sensors, power sensors, VM
system events, and skew between clocks, with a sample implementation
for each.

ok releng to go in before the branch due to the difficulty of later
pullup (widespread #ifdef removal and moved files). Tested with release
builds on amd64 and evbarm and live testing on amd64.

branches: 1.77.8; 1.77.12;
Push the bpf_ops usage back into bpf.h. Push the common ifp->if_bpf
check into the inline functions as well the fourth argument for
bpf_attach.

branches: 1.76.2; 1.76.4;
Redefine bpf linkage through an always present op vector, i.e.
#if NBPFILTER is no longer required in the client. This change
doesn't yet add support for loading bpf as a module, since drivers
can register before bpf is attached. However, callers of bpf can
now be modularized.

Dynamically loadable bpf could probably be done fairly easily with
coordination from the stub driver and the real driver by registering
attachments in the stub before the real driver is loaded and doing
a handoff. ... and I'm not going to ponder the depths of unload
here.

Tested with i386/MONOLITHIC, modified MONOLITHIC without bpf and rump.

Remove some more unnecessary casts.

Use the common ether_crc32_le() function for multicast hash.

Misc KNF.

Make local functions static.

Use uint8_t pointers for TX/RX buffers to avoid extra pointer casts.

Adjust attach messages.

Split device_t/softc.

Make be(4) is properly initialized at the first ifconfig(8) command:
- make beinit() and bestop() match struct ifnet
- if ether_ioctl() returns ENETRESET always call init function

- use device_private(), proper types and variables for device_t/softc
- remove unnecessary casts against void pointer

XXX: many inconsistent use of aprint_*(9) and printf(9)

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

struct device * -> device_t, no functional changes intended.

struct cfdata * -> cfdata_t, no functional changes intended.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.61.2;
move callout_init(sc->sc_tick_ch) before we're trying to callout_stop()
the ticker.

*** Summary ***

When a link-layer address changes (e.g., ifconfig ex0 link
02:de:ad:be:ef:02 active), send a gratuitous ARP and/or a Neighbor
Advertisement to update the network-/link-layer address bindings
on our LAN peers.

Refuse a change of ethernet address to the address 00:00:00:00:00:00
or to any multicast/broadcast address. (Thanks matt@.)

Reorder ifnet ioctl operations so that driver ioctls may inherit
the functions of their "class"---ether_ioctl(), fddi_ioctl(), et
cetera---and the class ioctls may inherit from the generic ioctl,
ifioctl_common(), but both driver- and class-ioctls may override
the generic behavior. Make network drivers share more code.

Distinguish a "factory" link-layer address from others for the
purposes of both protecting that address from deletion and computing
EUI64.

Return consistent, appropriate error codes from network drivers.

Improve readability. KNF.

*** Details ***

In if_attach(), always initialize the interface ioctl routine,
ifnet->if_ioctl, if the driver has not already initialized it.
Delete if_ioctl == NULL tests everywhere else, because it cannot
happen.

In the ioctl routines of network interfaces, inherit common ioctl
behaviors by calling either ifioctl_common() or whichever ioctl
routine is appropriate for the class of interface---e.g., ether_ioctl()
for ethernets.

Stop (ab)using SIOCSIFADDR and start to use SIOCINITIFADDR. In
the user->kernel interface, SIOCSIFADDR's argument was an ifreq,
but on the protocol->ifnet interface, SIOCSIFADDR's argument was
an ifaddr. That was confusing, and it would work against me as I
make it possible for a network interface to overload most ioctls.
On the protocol->ifnet interface, replace SIOCSIFADDR with
SIOCINITIFADDR. In ifioctl(), return EPERM if userland tries to
invoke SIOCINITIFADDR.

In ifioctl(), give the interface the first shot at handling most
interface ioctls, and give the protocol the second shot, instead
of the other way around. Finally, let compatibility code (COMPAT_OSOCK)
take a shot.

Pull device initialization out of switch statements under
SIOCINITIFADDR. For example, pull ..._init() out of any switch
statement that looks like this:

switch (...->sa_family) {
case ...:
..._init();
...
break;
...
default:
..._init();
...
break;
}

Rewrite many if-else clauses that handle all permutations of IFF_UP
and IFF_RUNNING to use a switch statement,

switch (x & (IFF_UP|IFF_RUNNING)) {
case 0:
...
break;
case IFF_RUNNING:
...
break;
case IFF_UP:
...
break;
case IFF_UP|IFF_RUNNING:
...
break;
}

unifdef lots of code containing #ifdef FreeBSD, #ifdef NetBSD, and
#ifdef SIOCSIFMTU, especially in fwip(4) and in ndis(4).

In ipw(4), remove an if_set_sadl() call that is out of place.

In nfe(4), reuse the jumbo MTU logic in ether_ioctl().

Let ethernets register a callback for setting h/w state such as
promiscuous mode and the multicast filter in accord with a change
in the if_flags: ether_set_ifflags_cb() registers a callback that
returns ENETRESET if the caller should reset the ethernet by calling
if_init(), 0 on success, != 0 on failure. Pull common code from
ex(4), gem(4), nfe(4), sip(4), tlp(4), vge(4) into ether_ioctl(),
and register if_flags callbacks for those drivers.

Return ENOTTY instead of EINVAL for inappropriate ioctls. In
zyd(4), use ENXIO instead of ENOTTY to indicate that the device is
not any longer attached.

Add to if_set_sadl() a boolean 'factory' argument that indicates
whether a link-layer address was assigned by the factory or some
other source. In a comment, recommend using the factory address
for generating an EUI64, and update in6_get_hw_ifid() to prefer a
factory address to any other link-layer address.

Add a routing message, RTM_LLINFO_UPD, that tells protocols to
update the binding of network-layer addresses to link-layer addresses.
Implement this message in IPv4 and IPv6 by sending a gratuitous
ARP or a neighbor advertisement, respectively. Generate RTM_LLINFO_UPD
messages on a change of an interface's link-layer address.

In ether_ioctl(), do not let SIOCALIFADDR set a link-layer address
that is broadcast/multicast or equal to 00:00:00:00:00:00.

Make ether_ioctl() call ifioctl_common() to handle ioctls that it
does not understand.

In gif(4), initialize if_softc and use it, instead of assuming that
the gif_softc and ifp overlap.

Let ifioctl_common() handle SIOCGIFADDR.

Sprinkle rtcache_invariants(), which checks on DIAGNOSTIC kernels
that certain invariants on a struct route are satisfied.

In agr(4), rewrite agr_ioctl_filter() to be a bit more explicit
about the ioctls that we do not allow on an agr(4) member interface.

bzero -> memset. Delete unnecessary casts to void *. Use
sockaddr_in_init() and sockaddr_in6_init(). Compare pointers with
NULL instead of "testing truth". Replace some instances of (type
*)0 with NULL. Change some K&R prototypes to ANSI C, and join
lines.

branches: 1.59.6; 1.59.8; 1.59.10;
mii_dev is a device_t now.

Remove clause 3 and 4 from TNF licenses

branches: 1.57.2; 1.57.4;
use aprint_*_dev and device_xname

branches: 1.56.6;
Make many ethernet drivers share the common code for MII media
handling, ether_mediastatus() and ether_mediachange(). Check for
a non-ENXIO error return from mii_mediachg(). (ENXIO indicates
that a PHY is suspended.)

This patch shrinks the source code size by 979 lines. There was
a 5100-byte savings on the NetBSD/i386 kernel configuration, ALL.

I have made a few miscellaneous changes, too:

gem(4): use LIST_EMPTY(), LIST_FOREACH().
mtd(4): handle media ioctls, for a change!
axe(4): do not track link status in sc->axe_link any longer
nfe(4), aue(4), axe(4), udav(4), url(4): do not reset all PHYs
on a change of media

Except for the change to mtd(4), no functional changes are intended.

XXX This patch affects more architectures than I can feasibly
XXX compile and run. I have compiled macppc, sparc64, i386. I
XXX have run the patches on i386 boxen with bnx(4) and sip(4).
XXX Compiling and running on evbmips (MERAKI, ADM5120) is in
XXX progress.

branches: 1.55.2; 1.55.8;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.54.4;
Change a bazillion occurrences of code resembling this,

error = (cmd == SIOCADDMULTI) ?
ether_addmulti(ifr, &sc->sc_ec) :
ether_delmulti(ifr, &sc->sc_ec);

if (error == ENETRESET) {

to this,

if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) {

which does the same thing.

(A bazillion is a very large number. This seems to make the i386
ALL kernel smaller by 3kB to 4kB.)

Use ifreq_getaddr() twice in es(4).

Whitespace nits.

branches: 1.53.2; 1.53.6; 1.53.8;
Merge some of the less invasive changes from the vmlocking branch:

- kthread, callout, devsw API changes
- select()/poll() improvements
- miscellaneous MT safety improvements

branches: 1.52.2; 1.52.4;
fix fallout from caddr_t changes.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.50.4;
fix spelling of accommodate; from Zapher.

branches: 1.49.2; 1.49.4;
remove more vestiges of CCITT, LLC, HDLC, NS, and NSIP.

branches: 1.48.4; 1.48.8;
__inline__ -> inline

merge ktrace-lwp.

ETHERCAP_VLAN_MTU is a flag for ec_capabilities, the size of the 802.1q
encaptulation header is ETHER_VLAN_ENCAP_LEN. Pointed out by der Mouse on
tech-kern.

branches: 1.45.4; 1.45.6;
de-__P

branches: 1.44.4; 1.44.6;
When adding/deleting multicast addresses, only whack the address
filter if the interface is marked RUNNING.

Fixes kern/27678.

Fix incorrect diagnostic.

branches: 1.42.2;
Rename PROM_getprop*() => prom_getprop*().

Replace myetheraddr() by prom_getether().

Enable VLAN encapsulation.

branches: 1.39.2;
DMA, not dma nor Dma.

Remove the `flags' argument from bus_intr_establish().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Use the structures defined in bsd_openprom.h for "reg", "range",
and "intr" properties, rather than having identical-except-for-names
sbus_* and iommu_* versions.

bcmp -> memcmp.

branches: 1.31.4; 1.31.6;
Get rid of unnecessary BUS_SPACE_MAP_LINEAR.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

getprop* -> PROM_getprop*

Properly initialize sc->sc_bustag.

branches: 1.26.2; 1.26.4;
Fix fall-out from previous change: the map's DMA address is valid only
after bus_dmamap_load().

Use bus_dmamap_load(), not bus_dmamap_load_raw().

branches: 1.24.2;
Use splnet() to block network interrupts, not splimp().

ALTQ'ify.

Move bpfattach()/bpfdetach() calls into ether_ifattach()/ether_ifdetach().

Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

branches: 1.20.4;
No need to specify page alignment; this is automatic.

Fix bogus `boundary' argument in bus_dmamap_create().

Conform bus_dmamem_{alloc,map} usage to bus_dma(9) specs.

New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.

Make promiscuous mode go again.

Don't dry to diving MIIF_NOISOLATE in the PHY drivers. Instead, pass
flags down from the parent to child vi mii_attach().

Bring some order to the chaos which was the MII code function naming
"conventions".

* remove full duplex modes for the internal transceiver
* internal transceiver needs to be reset for the BMSR_LINK bit to
be even remotely reliable
* because of previous, maintain link state, so we won't be sensing speed
all the time when interface flags need to be changed (e.g. entering/exiting
promiscuous mode)
* in auto-speed mode, report link condition changes on the console

Streamline media code a bit by some `pseudo-mii' code designed to handle
the on-board transceiver.

Shuffle some code around to allow two PHYs to attach. Only one PHY can
be used at a time, but it's now possible to select one by using ifconfig(8)'s
`instance' parameter.

* Remove spurious blockade in the path to get the transceiver status word.
* Make sure to flip the 10baseT/100baseTX bit when doing autoselect.
* Miscellaneous cosmetics.

Check presence of Sbus interrupt properties before using them.
Only one case is known to trigger this omission: a Sparc Classic
configured as X terminal.

Call mii_down() as appropriate.

Adapt to mii_phy_probe() change.

branches: 1.6.2; 1.6.4; 1.6.8;
Rework layer 2 protocol input routines. Instead of calling e.g. ether_input()
directly, call the function pointer (*if_input)(ifp, m). The input routine
expects the packet header to be at the head of the packet, and will adjust
as necessary. Privatize the layer 2 input and output routines, allowing
*_ifattach() to set them up as appropriate.

branches: 1.5.4;
Fix promiscuous modes - patches from Jason Wright.

Don't try to use the MII routines for the internal PHY.

Fix AF_NS code.

Share ring buffer code and data structure for `be' and `qe' in
the QEC module. Adapt the QEC interrupt establish code to suit the
needs of the `qe' device.

Import Jason Wright's Bigmac driver, written for OpenBSD.
Heavily pounded on by me to make it fit our driver model.

fix various typos, mainly in comments.

u_intNN_t -> uintNN_t

Remove clause 3 and 4 from TNF licenses

branches: 1.7.70; 1.7.72; 1.7.74;
merge ktrace-lwp.

Enable VLAN encapsulation.

branches: 1.5.2;
DMA, not dma nor Dma.

Purge C++-style comments.

branches: 1.3.4;
#define the bit positions of the MIF I/O lines.

branches: 1.2.8; 1.2.14;
Share ring buffer code and data structure for `be' and `qe' in
the QEC module. Adapt the QEC interrupt establish code to suit the
needs of the `qe' device.

Initial revision

Change the kqueue filterops::f_isfd field to filterops::f_flags, and
define a flag FILTEROP_ISFD that has the meaning of the prior f_isfd.
Field and flag name aligned with OpenBSD.

This does not constitute a functional or ABI change, as the field location
and size, and the value placed in that field, are the same as the previous
code, but we're bumping __NetBSD_Version__ so 3rd-party module source code
can adapt, as needed.

NetBSD 9.99.89

Use sel{record,remove}_knote().

branches: 1.45.2;
Move proc_lock into the data segment. It was dynamically allocated because
at the time we had mutex_obj_alloc() but not __cacheline_aligned.

in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.42.2; 1.42.4;
Use C99 initializer for filterops

Mostly done with spatch with touchups for indentation

@@
expression a;
identifier b,c,d;
identifier p;
@@
const struct filterops p =
- { a, b, c, d
+ {
+ .f_isfd = a,
+ .f_attach = b,
+ .f_detach = c,
+ .f_event = d,
};

Add d_discard to all struct cdevsw instances I could find.

All have been set to "nodiscard"; some should get a real implementation.

branches: 1.40.2;
Change (mostly mechanically) every cdevsw/bdevsw I can find to use
designated initializers.

I have not built every extant kernel so I have probably broken at
least one build; however I've also found and fixed some wrong
cdevsw/bdevsw entries so even if so I think we come out ahead.

branches: 1.39.12; 1.39.22; 1.39.26;
Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

Remove clause 3 and 4 from TNF licenses

branches: 1.37.2;
Network protocol interrupts can now block on locks, so merge the globals
proclist_mutex and proclist_lock into a single adaptive mutex (proc_lock).
Implications:

- Inspecting process state requires thread context, so signals can no longer
be sent from a hardware interrupt handler. Signal activity must be
deferred to a soft interrupt or kthread.

- As the proc state locking is simplified, it's now safe to take exit()
and wait() out from under kernel_lock.

- The system spends less time at IPL_SCHED, and there is less lock activity.

Don't send signals from a hardware interrupt handler. XXX This is still
dodgy, because sc->sc_asyncproc can exit and we don't find out about
that.

branches: 1.35.2;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

use aprint_*_dev and device_xname

Fix previous.
sc_rsel and sc_wsel are in bpp_softc, not in lsi64854_softc.

Welcome to 4.99.55:

- Add a lot of missing selinit() and seldestroy() calls.

- Merge selwakeup() and selnotify() calls into a single selnotify().

- Add an additional 'events' argument to selnotify() call. It will
indicate which event (POLL_IN, POLL_OUT, etc) happen. If unknown,
zero may be used.

Note: please pass appropriate value of 'events' where possible.
Proposed on: <tech-kern>

branches: 1.31.8; 1.31.12;
Do not "return 1" from kqfilter for errors. That value is passed
directly to the userland caller and results in a mysterious EPERM.
Instead, return EINVAL or something else sensible depending on the
case.

branches: 1.30.2; 1.30.4;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.29.2; 1.29.14; 1.29.16; 1.29.20;
fix fallout from caddr_t changes.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.27.2;
Merge newlock2 to head.

Add missing initializer

branches: 1.25.20; 1.25.22;
merge ktrace-lwp.

branches: 1.24.4;
nuke trailing whitespace

de-__P

branches: 1.22.8; 1.22.10;
Rename PROM_getprop*() => prom_getprop*().

branches: 1.21.2;
Back out the lwp/ktrace changes. They contained a lot of colateral damage,
and need to be examined and discussed more.

More changes for providing lwpid for ktrace (sparc GENERIC built)

Remove the `flags' argument from bus_intr_establish().

si_ -> sel_

merge kqueue branch into -current

kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.12.4;
Get rid of unnecessary BUS_SPACE_MAP_LINEAR.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

getprop* -> PROM_getprop*

branches: 1.8.2; 1.8.4; 1.8.6;
Fix warning in a debug printf.

Clean up a #define that doesn't belong. Oops. That's what I get for
working this late.

Get the bpp driver to work properly.

Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

branches: 1.4.2;
Eliminate a race condition reported by mouse on port-sparc.

branches: 1.3.2;
Check presence of Sbus interrupt properties before using them.
Only one case is known to trigger this omission: a Sparc Classic
configured as X terminal.

branches: 1.2.8; 1.2.14;
Fix what is probably a past-o.

LSI63854 based parallel port driver skeleton.

Remove clause 3 and 4 from TNF licenses

branches: 1.1.144; 1.1.146; 1.1.148;
LSI63854 based parallel port driver skeleton.

Remove unnecessary include of <sys/malloc.h>.

Split device_t/softc.
Tested on TME emulating SS2.

XXX: bwtwo at obmem on TME emulating sun2 didn't match and cannot test

Make bwtwo(4) match prior to genfb(4).
Required by bwtwo(4) on TME emulating SS2.

- use device_private(), proper types and variables for device_t/softc
- remove unnecessary casts against void pointer

XXX: many inconsistent use of aprint_*(9) and printf(9)

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

struct device * -> device_t, no functional changes intended.

struct cfdata * -> cfdata_t, no functional changes intended.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.21.8; 1.21.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.20.2; 1.20.4;
use aprint_*_dev and device_xname

branches: 1.19.36;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.18.14;
Use device_cfdata().

branches: 1.17.4; 1.17.6; 1.17.8; 1.17.10; 1.17.12;
merge ktrace-lwp.

branches: 1.16.2;
Add const.

Rename PROM_getprop*() => prom_getprop*().

NetBSD.ORG -> NetBSD.org

Now all "NetBSD.ORG" are gone from src/sys.

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.12.2;
Fix attachment for sparc64 systems (missing bus_space_vaddr).
Patches submitted in PR 21188.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Merge the gehenna-devsw branch into the trunk.

This merge changes the device switch tables from static array to
dynamically generated by config(8).

- All device switches is defined as a constant structure in device drivers.

- The new grammer ``device-major'' is introduced to ``files''.

device-major <prefix> char <num> [block <num>] [<rules>]

- All device major numbers must be listed up in port dependent majors.<arch>
by using this grammer.

- Added the new naming convention.
The name of the device switch must be <prefix>_[bc]devsw for auto-generation
of device switch tables.

- The backward compatibility of loading block/character device
switch by LKM framework is broken. This is necessary to convert
from block/character device major to device name in runtime and vice versa.

- The restriction to assign device major by LKM is completely removed.
We don't need to reserve LKM entries for dynamic loading of device switch.

- In compile time, device major numbers list is packed into the kernel and
the LKM framework will refer it to assign device major number dynamically.

branches: 1.6.4;
Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

add cast to u_long before cast to caddr_t make these compile on sparc64

getprop* -> PROM_getprop*

Change bus_space_mmap() signature to the official one.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8;
Move cgsix and bwtwo Sbus attach code here from arch/sparc.

Remove unnecessary include of <sys/malloc.h>.

turns out we can map the full amount of VRAM on a 4MB board even when in
double buffer mode

thanks foo bar

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

use BUS_SPACE_MAP_LARGE

struct cfdata * -> cfdata_t, no functional changes intended.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.25.2;
device_t-ify

branches: 1.24.8;
Remove clause 3 and 4 from TNF licenses

branches: 1.23.2; 1.23.4;
use aprint_*_dev and device_xname

branches: 1.22.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.21.8; 1.21.10; 1.21.14;
return 100 in match() so we beat genfb

branches: 1.20.2; 1.20.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.19.14;
Use device_cfdata().

branches: 1.18.4; 1.18.6; 1.18.8; 1.18.10; 1.18.12;
merge ktrace-lwp.

branches: 1.17.2;
Add const.

Added support for virtual consoles, colour and some code to determine the
usable amount of VRAM for XFree86

branches: 1.15.2;
From Micahel Lorenz: wsdisplay support for cg6

de-__P

branches: 1.13.8; 1.13.10;
Rename PROM_getprop*() => prom_getprop*().

branches: 1.12.6;
Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Use bus_space_vaddr() correctly. Ugh.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

getprop* -> PROM_getprop*

Change bus_space_mmap() signature to the official one.

branches: 1.3.2; 1.3.4; 1.3.6;
Clean up warnings in 32bit compile (bus_space_handle_t is 64bit wide
but will only contain 32bit values; casting via u_long is safe)

branches: 1.2.2;
yank error.

Move cgsix and bwtwo Sbus attach code here from arch/sparc.

Remove unnecessary include of <sys/malloc.h>.

more RASTERCONSOLE purging

branches: 1.30.18; 1.30.36;
always make sure we can access the framebuffer - having more than one wsdisplay
is perfectly reasonable these days

branches: 1.29.2; 1.29.4;
Split device_t/softc. Tested on SS1+.

XXX: sparc/dev/cgthree.c in Attic had an attachment for cgthree* at obio?
XXX: and sparc/conf/files.sparc still has an entry of nonexistent (or not yet)
XXX: sparc/dev/cgthree_obio.c. Is there any sun4m machine which requires it?

- use device_private(), proper types and variables for device_t/softc
- remove unnecessary casts against void pointer

XXX: many inconsistent use of aprint_*(9) and printf(9)

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

Make cgthree(4) match prior to genfb(4). Required by cgthree(4) on SS1+.

struct device * -> device_t, no functional changes intended.

struct cfdata * -> cfdata_t, no functional changes intended.

ANSIfy another 1261 function definitions.
The only ones left in sys are beyond by sed script!
(or in sys/dist or sys/external)
Mostly they have function pointer parameters.

Change about 4500 of the K&R function definitions to ANSI ones.
There are still about 1600 left, but they have ',' or /* ... */
in the actual variable definitions - which my awk script doesn't handle.
There are also many that need () -> (void).
(The script does handle misordered arguments.)

branches: 1.21.8; 1.21.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.20.2; 1.20.4;
use aprint_*_dev and device_xname

branches: 1.19.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.18.2; 1.18.14; 1.18.16; 1.18.20;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.17.14;
Use device_cfdata().

branches: 1.16.4; 1.16.6; 1.16.8; 1.16.10; 1.16.12;
merge ktrace-lwp.

branches: 1.15.2;
Add const.

Rename PROM_getprop*() => prom_getprop*().

Move UCB-licensed code from 4-clause to 3-clause licence.

Patches provided by Joel Baker in PR 22364, verified by myself.

branches: 1.12.2;
Fix attachment for sparc64 systems (missing bus_space_vaddr).
Patches submitted in PR 21188.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

CG3 on at least the Classic doesn't have a "model" name, so fake one.

branches: 1.6.4;
Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

add cast to u_long before cast to caddr_t make these compile on sparc64

getprop* -> PROM_getprop*

Change bus_space_mmap() signature to the official one.

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8;
Split & move cgthree sbus attachment from arch/sparc.

Merge thorpej-cfargs2.

branches: 1.7.8;
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: 1.6.34;
fix some tpyos, add some comments

branches: 1.5.6; 1.5.24;
use rasops_init(0, 0)

branches: 1.4.8; 1.4.12;
- add support for running the console in 8 bit colour
- make shadow fb optional
- use VCONS_DONT_READ if there's no shadow fb

branches: 1.3.2; 1.3.4; 1.3.6;
add the missing bits to allow X to run in 24bit with the wsfb driver
still no hardware acceleration though

use a shadow framebuffer

first stab at a driver for the cg12 / matrox cg3
for now it uses the same monochrome overlay as OBP, otherwise it's got the
usual wsdisplay / vcons goodies
TODO:
- fill in mmap and ioctl methods so we can at least run X in monochrome
- figure out where the 24bit buffer is ( and maybe if there's an 8 bit buffer )
- see if we can do any acceleration
- find the DAC registers

fix some tpyos, add some comments

branches: 1.2.2; 1.2.4; 1.2.6; 1.2.24; 1.2.42;
add the missing bits to allow X to run in 24bit with the wsfb driver
still no hardware acceleration though

first stab at a driver for the cg12 / matrox cg3
for now it uses the same monochrome overlay as OBP, otherwise it's got the
usual wsdisplay / vcons goodies
TODO:
- fill in mmap and ioctl methods so we can at least run X in monochrome
- figure out where the 24bit buffer is ( and maybe if there's an 8 bit buffer )
- see if we can do any acceleration
- find the DAC registers

s/pedning/pending/

Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.51.2;
Use C99 style struct initializer to audio_hw_if.

branches: 1.50.10;
Make it compile with AUDIODEBUG

branches: 1.49.8; 1.49.26; 1.49.40;
Merge jmcneill-audiomp3 branch, which is derived from ad-audiomp2. From
the original ad-audiomp branch notes:

Add MP locking to the audio drivers.

Making the audio drivers MP safe is necessary before efforts
can be made to make the VM system MP safe.

The are two locks per device instance, an ISR lock and
a character device lock. The ISR lock replaces calls to
splaudio()/splx(), and will be held across calls to device
methods which were called at splaudio() before (e.g.
trigger_output). The character device lock is held across
calls to nearly all of the methods, excluding some only
used for initialization, e.g. get_locks.

Welcome to 5.99.57.

branches: 1.48.2; 1.48.4;
split audiocs

branches: 1.47.4; 1.47.6; 1.47.10;
- use device_private(), proper types and variables for device_t/softc
- remove unnecessary casts against void pointer

XXX: many inconsistent use of aprint_*(9) and printf(9)

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

struct device * -> device_t, no functional changes intended.

struct cfdata * -> cfdata_t, no functional changes intended.

branches: 1.43.2;
replace bitmask_snprintf(9) with snprintb(3)

branches: 1.42.8;
Another compile fix.

Pass the "right" softc to the soft interrupt handler

Make it compile

Use sparc_softintr to pass down device interrupt to the correct IPL.
MI slowpath softints are fine for notifications but have to much latency
to provide the card with the next block to play/record. PR kern/37540.

Remove clause 3 and 4 from TNF licenses

branches: 1.37.2; 1.37.4;
use aprint_*_dev and device_xname

branches: 1.36.14;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.35.2;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.34.6; 1.34.8; 1.34.22; 1.34.24; 1.34.28;
Add missing initializer

branches: 1.33.20; 1.33.22;
merge ktrace-lwp.

branches: 1.32.10;
ansify and KNF

merge kent-audio1 branch, which introduces audio filter pipeline to the MI
audio framework


Summary of changes:

* struct audio_params
- remove sw_code, factor, factor_denom, hw_sample_rate,
hw_encoding ,hw_precision, and hw_channels. Conversion information
is conveyed by stream_filter_list_t.
- change the type of sample_rate: u_long -> u_int
- add `validbits,' which represents the valid data size in
precision bits. It is required in order to distinguish 24/32bit
from 24/24bit or 32/32bit.

* audio_hw_if
- add two parameters to set_params()
stream_filter_list_t *pfil, stream_filter_list *rfil
A HW driver should set filter recipes for requested formats
- constify audio_params parameters of trigger_output() and
trigger_input(). They represent audio formats for the hardware.
- make open() and close() optional
- add int (AUMODE_PLAY or AUMODE_RECORD) and audio_params_t parameters
to round_blocksize()

* sw_code is replaced with stream_filter_t.
stream_filer_t converts audio data in an input buffer and writes
into another output buffer unlike sw_code, which converts data in
single buffer.
converters in dev/auconv.c, dev/mulaw.c, dev/aurateconv.c,
dev/tc/bba.c, dev/ic/msm6258.c, and arch/arm/iomd/vidcaudio.c are
reimplemented as stream_filter_t

* MI audio
- audiosetinfo() builds filter pipelines from stream_filter_list_t
filled by audio_hw_if::set_params()
- audiosetinfo() returns with EINVAL if mmapped and set_params()
requests filters
- audio_write(), audio_pint(), and audio_rint() invoke a filter
pipeline.
- ioctl() for FIONREAD, AUDIO_WSEEK, AUDIO_GETIOFFS,
AUDIO_GETOOFFS, and audio_prinfo::{seek,samples} for
AUDIO_GETINFO handle values for a buffer nearest to userland.

* add `struct device *' parameter to ac97_attach()

* all of audio HW drivers follow audio_hw_if and ac97 changes

branches: 1.30.2;
constify audio_hw_if, midi_hw_if, and radio_hw_if.

Get rid of the disgusting struct apc_dma *dma = NULL; hack now that we
have proper definitions for offsets of APM DMA registers.

NULL out round_buffersize and round_blocksize in audio_hw_if. We
don't seem to have any special requirements and audio(9) already
provides enough rounding.

branches: 1.28.2;
DMA, not dma nor Dma.

Back out rev. 1.26; I forgot about the Javastations..

Some machine have a `SUNW,CS4231' node, but no actual hardware. It seems
these can be identified by a `serial' device type.
From Julian Coleman.

Remove the `flags' argument from bus_intr_establish().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

fix a bug introduced in rev 1.19:
- finish bus_space-ification of cs4231_sbus_trigger_input().

this stops recording on the sbus cs4231 from crashing.

branches: 1.20.2; 1.20.4;
cs4231_sbus_regdump(): add missing ')'

Properly bus_space_*=ify this so it uses accessors.

Rework the driver to add EBus DMA support and improve APC DMA support.
Audio-related stuff is left almost intact.

* support audiocs at ebus playback and capture
tested on krups and u5 (thanks, martin)
* make first attempt at supporting audiocs at sbus capture
* nb: full-duplex is not tested
* while here, fix CSAUDIO_MONITOR_MUTE to be of CSAUDIO_MONITOR_CLASS
i.e. outputs.monitor.mute -> monitor.monitor.mute

Ok by pk, eeh.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

add RCSIDs

branches: 1.15.2; 1.15.4;
Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

branches: 1.14.2;
Implement the more flexiable `evcnt' interface as discussed (briefly) on
tech-kern and now documented in evcnt(9).

branches: 1.13.2;
add some casts to (u_long) to shut up gcc

Check presence of Sbus interrupt properties before using them.
Only one case is known to trigger this omission: a Sparc Classic
configured as X terminal.

branches: 1.11.2; 1.11.8;
split sbus audiocs code up so we can share it with the ebus. XXX ebus DMA is probably different.

branches: 1.10.4;
Use correctly bus_space_*() macros to access device registers.

Update comments.

Pass the direction to the allocm and round_buffersize methods.
Some drivers need this to properly allocate DMAable memory.

Avoid arithmetic on void *.

Fix a silly yank-o.

Missing bits in DEBUG mode.

Nuke unnecessary header files.

Make compile without AUDIO_DEBUG

Nuke Dprintf; fix formats.
Add missing copyright.

CS4231 audio driver. Play only for now.

Remove an extra mutex_spin_exit() in error path.
This is a part of rev 1.38.

Remove something like counters.
- Counting {open,close} is done by the MI audio layer.
- trigger_* is not called again between trigger_* and halt_*.

branches: 1.43.2;
Style on config_finalize_register arguments - make consistent will all
other callers of config_finalize_register

round_blocksize must return a multiple of the framesize
even if passed blocksize is greater than the upper limit.

branches: 1.41.2; 1.41.4;
Clean get_props().
- Make get_props() return AUDIO_PROP_{PLAYBACK,CAPTURE} properly.
This eliminates need for audio.c to take care of such (old)
drivers which don't return both of PLAYBACK and CAPTURE.
- All get_props() doesn't need to return AUDIO_PROP_MMAP.
It is handled in the audio layer now.

Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.39.2;
Rename min/max -> uimin/uimax for better honesty.

These functions are defined on unsigned int. The generic name
min/max should not silently truncate to 32 bits on 64-bit systems.
This is purely a name change -- no functional change intended.

HOWEVER! Some subsystems have

#define min(a, b) ((a) < (b) ? (a) : (b))
#define max(a, b) ((a) > (b) ? (a) : (b))

even though our standard name for that is MIN/MAX. Although these
may invite multiple evaluation bugs, these do _not_ cause integer
truncation.

To avoid `fixing' these cases, I first changed the name in libkern,
and then compile-tested every file where min/max occurred in order to
confirm that it failed -- and thus confirm that nothing shadowed
min/max -- before changing it.

I have left a handful of bootloaders that are too annoying to
compile-test, and some dead code:

cobalt ews4800mips hp300 hppa ia64 luna68k vax
acorn32/if_ie.c (not included in any kernels)
macppc/if_gm.c (superseded by gem(4))

It should be easy to fix the fallout once identified -- this way of
doing things fails safe, and the goal here, after all, is to _avoid_
silent integer truncations, not introduce them.

Maybe one day we can reintroduce min/max as type-generic things that
never silently truncate. But we should avoid doing that for a while,
so that existing code has a chance to be detected by the compiler for
conversion to uimin/uimax without changing the semantics until we can
properly audit it all. (Who knows, maybe in some cases integer
truncation is actually intended!)

branches: 1.38.2; 1.38.4;
fix several KASSERT()s and locking in a few places.
fixes DIAGNOSTIC kernels and still plays.

overhaul the dbri driver and make it work again in the New Order Of Things
- fix switching between control and data mode
- make sure interrupts can happen in control mode
- implement audioif.commit_settings()
- switch to control mode only if needed - for changes in sample rate or format
but not for things like volume control
should fix PR 52786

fix audiomp bugs:
- switch from tsleep/wakeup to condvar
- fix locking in a bunch of places. there were several locking
against myself issues.

also:
- don't let dbri_process_interrupt_buffer() loop more than once
over the array of intrs.

this fixes hangs when using audio on ss20 in -current, but does
not make audio work. it eventually times out with eg:

dbri0: switching to control mode timed out (0 f6)

and may leave a sample in the audio buffer repeating.

branches: 1.35.4; 1.35.22;
- remove set but unused variable.
- put variables only inside #ifdef inside that same #ifdef.
use __USE() where appropriate.

branches: 1.34.8; 1.34.12;
Merge jmcneill-audiomp3 branch, which is derived from ad-audiomp2. From
the original ad-audiomp branch notes:

Add MP locking to the audio drivers.

Making the audio drivers MP safe is necessary before efforts
can be made to make the VM system MP safe.

The are two locks per device instance, an ISR lock and
a character device lock. The ISR lock replaces calls to
splaudio()/splx(), and will be held across calls to device
methods which were called at splaudio() before (e.g.
trigger_output). The character device lock is held across
calls to nearly all of the methods, excluding some only
used for initialization, e.g. get_locks.

Welcome to 5.99.57.

branches: 1.33.4; 1.33.6;
change dbri's DMA segment size to a power of two value - the ship allows
segments up to 0x1fff bytes but even rounded to 32bit this seems to
confuse the rest of the audio code these days
TODO: we don't need to interrupt at every single segment
either way, with this mpg123 doesn't produce semi-random funny noises
anymore

branches: 1.32.2;
use config_finalize_register() instead of config_interrupts() to detect the
codec and attach audio. For some reason we run into a locking panic with
config_interrupts().
Tested on my SS20

branches: 1.31.2;
A pointer typedef entails trading too much flexibility to declare const
and non-const types, and the kernel uses both const and non-const
PMF qualifiers and device suspensors, so change the pmf_qual_t and
device_suspensor_t typedefs from "pointers to const" to non-pointer,
non-const types.

Abort setup when we find no audio codec to avoid crashing later on with
ISDN-only cards.
Should fix PR41055

branches: 1.29.2;
set a delta value for the master channel so volume control via PMF works

Expand PMF_FN_* macros.

Fix botches in mechanical changes to make this compile:
dbri.c:165: warning: 'dbri_sus' declared 'static' but never defined
dbri.c: In function 'dbri_resume':
dbri.c:2188: error: 'sc' undeclared
dbri.c:2189: error: break statement not within loop or switch

convert to pmf

u_intNN_t -> uintNN_t

Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

we can not free() a dmamap!

struct cfdata * -> cfdata_t, no functional changes intended.

branches: 1.21.2;
remove extra semicolons.

branches: 1.20.6;
struct device * -> device_t

move to 2 clause license

branches: 1.18.2; 1.18.4; 1.18.6;
use aprint_*_dev and device_xname

branches: 1.17.14;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.16.2;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.15.4; 1.15.6; 1.15.10; 1.15.12;
make this work with the onboard codec found on my SS20

branches: 1.14.2;
- don't pretend to support 8bit stereo - the hardware can do it but not the
way we currently use it ( needs a 2nd pipe for each direction )
- 8bit mono a-law and u-law should work now
- add support for audio input

- add dummy input methods so we don't panic if someone tries to read
- add dummy input mixer controls
- restart tx DMA on PWR_RESUME
- power up on PWR_RESUME only if we really have to
- add an option to control wether to spin or sleep when waiting for the chip
to switch between data and control mode

branches: 1.12.2;
whitespace police, some cleanup - no functional changes

some more overhaul:
- use static consistently
- convert to auconv instead of pretending to support LE samples

adjust some debug output verbosity and use aprint_*()

branches: 1.9.2;
make the dbri driver work again
while there enforce some alignment rules, adjust some timeouts, retry when
probing the codec fails

fix fall out from caddr_t changes.

Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.6.4;
Add "name" parameter to powerhook_establish, to aid debugging. No objections
on tech-kern@

branches: 1.5.4; 1.5.8; 1.5.10;
Clean up bogus whitespace

branches: 1.4.4;
keep the chip powered down when not in use on machines that support it
( like SPARCbooks ) - needs testing on other machines
tested on my SPARCbook 3GX

branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10;
merge ktrace-lwp.

branches: 1.2.6;
Updated license

driver for the audio part of SUNW,DBRI ISDN/audio controllers

move to 2 clause license

branches: 1.5.36; 1.5.38; 1.5.40; 1.5.42;
make the dbri driver work again
while there enforce some alignment rules, adjust some timeouts, retry when
probing the codec fails

branches: 1.4.8; 1.4.18;
keep the chip powered down when not in use on machines that support it
( like SPARCbooks ) - needs testing on other machines
tested on my SPARCbook 3GX

branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10;
merge ktrace-lwp.

branches: 1.2.6;
Updated license

driver for the audio part of SUNW,DBRI ISDN/audio controllers

Remove something like counters.
- Counting {open,close} is done by the MI audio layer.
- trigger_* is not called again between trigger_* and halt_*.

branches: 1.16.10;
Merge isaki-audio2 branch, the overhaul of audio subsystem.
- Interrupt-oriented system rather than thread-oriented.
- Improve stability, quality and performance.
- Split playback and record cleanly. Improve halfduplex support.
- Many bugs are fixed including deadlocks, resource leaks, abuses, etc.
- Simplify audio filter mechanism. The encoding/channels/frequency
conversions are completely handled in the upper layer. So the hard-
ware driver only converts its hardware encoding (if necessary).
- audio_hw_if changes:
- Obsoletes query_encoding and add query_format instead.
- Obsoletes set_params and add set_format instead.
- Remove drain, setfd, mappage.
- The call sequences are changed.
- ioctl AUDIO_GETFD/SETFD, AUDIO_GETCHAN/SETCHAN are obsoleted.
- ioctl AUDIO_{QUERY,GET,SET}FORMAT are introduced.
- cleanup config attributes: au*conv and mulaw.
- All hardware drivers should follow it (I've done as much as possible).

Some file paths are changed:
- dev/audio.c -> dev/audio/audio.c (rewritten)
- dev/audiovar.h -> dev/audio/audiovar.h
- dev/audio_dai.h -> dev/audio/audio_dai.h
- dev/audio_if.h -> dev/audio/audio_if.h
- dev/audiobell.c -> dev/audio/audiobell.c
- dev/audiobellvar.h -> dev/audio/audiobellvar.h
- dev/mulaw.[ch] -> dev/audio/mulaw.[ch] + dev/audio/alaw.c

branches: 1.15.4; 1.15.8;
overhaul the dbri driver and make it work again in the New Order Of Things
- fix switching between control and data mode
- make sure interrupts can happen in control mode
- implement audioif.commit_settings()
- switch to control mode only if needed - for changes in sample rate or format
but not for things like volume control
should fix PR 52786

fix audiomp bugs:
- switch from tsleep/wakeup to condvar
- fix locking in a bunch of places. there were several locking
against myself issues.

also:
- don't let dbri_process_interrupt_buffer() loop more than once
over the array of intrs.

this fixes hangs when using audio on ss20 in -current, but does
not make audio work. it eventually times out with eg:

dbri0: switching to control mode timed out (0 f6)

and may leave a sample in the audio buffer repeating.

branches: 1.13.24; 1.13.42;
Merge jmcneill-audiomp3 branch, which is derived from ad-audiomp2. From
the original ad-audiomp branch notes:

Add MP locking to the audio drivers.

Making the audio drivers MP safe is necessary before efforts
can be made to make the VM system MP safe.

The are two locks per device instance, an ISR lock and
a character device lock. The ISR lock replaces calls to
splaudio()/splx(), and will be held across calls to device
methods which were called at splaudio() before (e.g.
trigger_output). The character device lock is held across
calls to nearly all of the methods, excluding some only
used for initialization, e.g. get_locks.

Welcome to 5.99.57.

branches: 1.12.8; 1.12.10;
use config_finalize_register() instead of config_interrupts() to detect the
codec and attach audio. For some reason we run into a locking panic with
config_interrupts().
Tested on my SS20

branches: 1.11.4;
Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

struct device * -> device_t

move to 2 clause license

branches: 1.8.14; 1.8.16; 1.8.18; 1.8.20;
Interrupt handling changes, in discussion since February:

- Reduce available SPL levels for hardware devices to none, vm, sched, high.
- Acquire kernel_lock only for interrupts at IPL_VM.
- Implement threaded soft interrupts.

branches: 1.7.6; 1.7.8; 1.7.14;
- don't pretend to support 8bit stereo - the hardware can do it but not the
way we currently use it ( needs a 2nd pipe for each direction )
- 8bit mono a-law and u-law should work now
- add support for audio input

- add dummy input methods so we don't panic if someone tries to read
- add dummy input mixer controls
- restart tx DMA on PWR_RESUME
- power up on PWR_RESUME only if we really have to
- add an option to control wether to spin or sleep when waiting for the chip
to switch between data and control mode

branches: 1.5.2; 1.5.4;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.4.8; 1.4.18;
keep the chip powered down when not in use on machines that support it
( like SPARCbooks ) - needs testing on other machines
tested on my SPARCbook 3GX

branches: 1.3.4; 1.3.6; 1.3.8; 1.3.10;
merge ktrace-lwp.

branches: 1.2.6;
Updated license

driver for the audio part of SUNW,DBRI ISDN/audio controllers

Remove unnecessary include of <sys/malloc.h>.

Change the devhandle_from_*() functions to also take a "super handle",
from which the newly created handle will inherit it's implementation.
The root implementation for a new handle type is used if an invalid
"super handle" is passed.

Merge thorpej-cfargs2.

branches: 1.37.4;
Associate the OpenBoot / OpenFirmware node with attached devices
at config_found() time.

branches: 1.36.2; 1.36.4;
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: 1.35.80;
Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

struct cfdata * -> cfdata_t, no functional changes intended.

branches: 1.33.12;
device_t

branches: 1.32.2;
Remove clause 3 and 4 from TNF licenses

branches: 1.31.2; 1.31.4;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

use aprint_*_dev and device_xname

branches: 1.29.16;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.28.24; 1.28.38; 1.28.40; 1.28.44;
Fix inverted device_is_a() logic in previous conversion.

Use device_is_a().

branches: 1.26.2; 1.26.4; 1.26.6;
merge ktrace-lwp.

branches: 1.25.2;
avoid shadow variables.

de-__P

branches: 1.23.4; 1.23.6;
Introduce bus_space_tag_alloc() for the common parts of bus tag allocation.

Bus tags should now be constructed by copying the parent's bus tag and
then changing the fields that need to be handled by the child bus.

Rename PROM_getprop*() => prom_getprop*().

branches: 1.20.2;
Remove unneeded #include's.

Approved by: Paul Kranenburg <pk@netbsd.org>

Add <sys/lock.h> include for ncr53c9xvar.h.

Remove the `flags' argument from bus_intr_establish().

bus_intr_establish() signature change.

The additional `fast trap' argument is ignored in these drivers.

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Compare the driver name against "ledma", rather than looking for
&ledma_ca.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

branches: 1.11.2;
Fixup attachment code to use sbus_promaddr_to_handle() and not specify
BUS_SPACE_MAP_LINEAR.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

Call malloc(9) with M_ZERO flag instead of bzero() after malloc().

don't need <sys/types.h> when including <sys/param.h>

add RCSIDs

getprop* -> PROM_getprop*

branches: 1.5.2; 1.5.4; 1.5.6;
Add a `device class' interrupt level argument (from machine/intr.h)
to bus_interrupt_establish().

It's currently only used in sparc64/dev/psycho.c to assign a CPU interrupt
level to devices in PCI slots.

branches: 1.4.4;
Remove old-style boot device recognition.

branches: 1.3.12;
Assign my copyrights to TNF.

Adjust for some small changes in lsi64854 back-end driver.

Use bus_space_*() to access device registers.
Add `esp' and `le' DMA engine.

sys: Split struct device into a private device_impl.h.

Include this only inside autoconf itself, and a few files that abuse
autoconf in ways I can't confidently make easy fixes for.

XXX kernel ABI change requires bump -- no more use of struct device
internals allowed, previously done by some drivers

introduce DDB_END_CMD and replace more than 20 copies of the same
list of NULLs and 0. idea from rillig@.

all touched ports built, several booted.

branches: 1.55.8;
in many device attach paths, allocate memory with M_WAITOK instead of M_NOWAIT
and remove code to handle failures that can no longer happen.

branches: 1.54.4;
db_esp() has a missing {} issue in debug code.

src is too big these days to tolerate superfluous apostrophes. It's
"its", people!

Remove unused variable

branches: 1.51.12; 1.51.22; 1.51.26;
Remove struct sbusdev and related functions sbus_establish() and sbusreset().
They are derived from 4.4BSD/sparc and have been there since initial import
of NetBSD/sparc in 1993, but the struct sbusdev is almost unused for years,
nothing calls sbusreset(), and all (*sd->sd_reset)() functions look bogus.

Suggested by mrg@ and martin@, and tested on SS1+ and SS20.

sbus_establish() should take device_t self for the device itself,
not device_t parent even if sbus is grandparent of the device,
otherwise (*sd_reset)() callbacks will be called with an wrong device_t.
Even in such case, sbus_establish() looks for an sbus though device tree.
XXX: (*sd_reset)() isn't called anyway, and these stuff seems really bogus.

Fix botch on device_t/softc split caused by awful casts around
registration of (*sd_reset)(device_t) in struct sbusdev via sbus_establish().

XXX: (*sd_reset)() in struct sbusdev seems called from only sbusreset(),
XXX: but there is no function which calls sbusreset()???

struct device * -> device_t, no functional changes intended.

struct cfdata * -> cfdata_t, no functional changes intended.

branches: 1.46.14;
Remove clause 3 and 4 from TNF licenses

branches: 1.45.2;
Since device_t is split out from softc, we have to allocate struct device
separately after allocating struct lsi64854_softc to fake it. (untested)

"lsc->sc_dev is not initialized" is pointed out by martin@.

branches: 1.44.2;
Split device_t/softc for MI ncr53c9x and some related devices,
with various cleanup.

use aprint_*_dev and device_xname

Don't panic if you can't find the corresponding DMA device- just don't
configure the device.

It turns out that if you have a SUNW,fas card installed, the assumption
that dma devices pair with esp devices is then broken, but that's a problem
to fix another day.

branches: 1.41.2; 1.41.6;
KNF previous change.

make it compile.

Introduce device_find_by_xname and device_find_by_driver_unit to replace
alldevs iterations all over src.

Patch discussed with and improved on suggestioned from cube@.

branches: 1.38.2;
machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

branches: 1.37.4;
Add a ddb command table at first attach to register "mach esp".

branches: 1.36.2; 1.36.14; 1.36.16;
Kill caddr_t; there will be some MI fallout, but it will be fixed shortly.

branches: 1.35.14;
Use device_unit().

Use device_parent().

branches: 1.33.4; 1.33.6; 1.33.8; 1.33.10; 1.33.12;
merge ktrace-lwp.

branches: 1.32.2;
Add const (catching up with additions to MI ddb code).

nuke trailing whitespace

de-__P

branches: 1.29.8; 1.29.10;
Rename PROM_getprop*() => prom_getprop*().

branches: 1.28.2;
hz -> Hz

Remove the `flags' argument from bus_intr_establish().

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Rather than referencing the cfdriver directly in the cfdata entries,
instead use a string naming the driver. The cfdriver is then looked
up in a list which is built at run-time.

Additional fixes to make 16 targets work on FAS366.

Use the structures defined in bsd_openprom.h for "reg", "range",
and "intr" properties, rather than having identical-except-for-names
sbus_* and iommu_* versions.

branches: 1.20.2; 1.20.4; 1.20.6;
Fixup attachment code to use sbus_promaddr_to_handle() and not specify
BUS_SPACE_MAP_LINEAR.

Get rid of `bus_type_t' and use BUS_ADDR() (in sbus_bus_map()) to construct
a `bus_addr_t' to pass on to bus_space_map().

Drop `va' argument from sbus_bus_map(); it should not be used by MI Sbus
drivers.

don't need <sys/types.h> when including <sys/param.h>

add RCSIDs

getprop* -> PROM_getprop*

The `ESC' DMA chip must be reset before we can access the esp registers.

branches: 1.14.2; 1.14.4;
Pull up the thorpej_scsipi branch to main branch.
This is a completely rewritten scsipi_xfer execution engine, and the
associated changes to HBA drivers. Overview of changes & features:
- All xfers are queued in the mid-layer, rather than doing so in an
ad-hoc fashion in individual adapter drivers.
- Adapter/channel resource management in the mid-layer, avoids even trying
to start running an xfer if the adapter/channel doesn't have the resources.
- Better communication between the mid-layer and the adapters.
- Asynchronous event notification mechanism from adapter to mid-layer and
peripherals.
- Better peripheral queue management: freeze/thaw, sorted requeueing during
recovery, etc.
- Clean separation of peripherals, adapters, and adapter channels (no more
scsipi_link).
- Kernel thread for each scsipi_channel makes error recovery much easier
(no more dealing with interrupt context when recovering from an error).
- Mid-layer support for tagged queueing: commands can have the tag type
set explicitly, tag IDs are allocated in the mid-layer (thus eliminating
the need to use buggy tag ID allocation schemes in many adapter drivers).
- support for QUEUE FULL and CHECK CONDITION status in mid-layer; the command
will be requeued, or a REQUEST SENSE will be sent as appropriate.

Just before the merge syssrc has been tagged with thorpej_scsipi_beforemerge

fas support added