Commit Graph

21 Commits

Author SHA1 Message Date
John Baldwin
13e3657b7b Add locking to the various iicbus(4) bridge drivers:
- Just grab Giant in the ixp425_iic(4) driver since this driver uses
  a shared address/data register window pair to access the actual
  I2C registers.  None of the other ixp425 drivers lock access to these
  shared address/data registers yet and that would need to be done before
  this could use any meaningful locking.
- Add locking to the interrupt handler and 'iicbus_reset' methods of the
  at91_twi(4) driver.
- Add locking to the pcf(4) driver.  Other pcf(4) fixes include:
  - Don't needlessly zero the softc.
  - Use bus_foo rather than bus_space_foo and remove bus space tag and
    handle from softc.
- The lpbb(4) driver just grabs Giant for now.  This will be refined later
  when ppbus(4) is locked.
- As was done with smbus earlier, move the DRIVER_MODULE() lines to match
  the bus driver (either iicbus or iicbb) to the bridge driver into the
  bridge drivers.

Tested by:	sam (arm/ixp425)
2008-08-04 20:46:15 +00:00
Oleksandr Tymoshenko
f219c59601 Add support for VT8237 ISA bridge.
PR:     kern/120714
Event:  Bugathon#5
2008-06-22 20:53:29 +00:00
John Baldwin
32d8ea8423 - Use bus_foo() rather than bus_space_foo() and remove bus space tag/handle
from softc.
- Mark interrupt handlers MPSAFE as these drivers have been locked for a
  while.
2008-06-06 18:29:56 +00:00
Kevin Lo
0d45c918d2 Add the device ID for the VIA CX700 chipset.
Approved by: re (hrs)
2007-08-02 04:29:19 +00:00
John Baldwin
85064e683c Various updates to most of the smbus(4) drivers:
- Use printf() and device_printf() instead of log() in ichsmb(4).
- Create the mutex sooner during ichsmb(4) attach.
- Attach the interrupt handler later during ichsmb(4) attach to avoid
  races.
- Don't try to set PCIM_CMD_PORTEN in ichsmb(4) attach as the PCI bus
  driver does this already.
- Add locking to alpm(4), amdpm(4), amdsmb(4), intsmb(4), nfsmb(4), and
  viapm(4).
- Axe ALPM_SMBIO_BASE_ADDR, it's not really safe to write arbitrary values
  into BARs, and the PCI bus layer will allocate resources now if needed.
- Merge intpm(4) and intsmb(4) into just intsmb(4).  Previously, intpm(4)
  attached to the PCI device and created an intsmb(4) child.  Now,
  intsmb(4) just attaches to PCI directly.
- Change several intsmb functions to take a softc instead of a device_t
  to make things simpler.
2007-01-11 19:56:24 +00:00
John Baldwin
9d042fe7aa Trim some unneeded includes. 2006-09-12 15:01:19 +00:00
John Baldwin
7048a99c30 Minor overhaul of SMBus support:
- Change smbus_callback() to pass a void * rather than caddr_t.
- Change smbus_bread() to pass a pointer to the count and have it be an
  in/out parameter.  The input is the size of the buffer (same as before),
  but on return it will contain the actual amount of data read back from
  the bus.  Note that this value may be larger than the input value.  It
  is up to the caller to treat this as an error if desired.
- Change the SMB_BREAD ioctl to write out the updated struct smbcmd which
  will contain the actual number of bytes read in the 'count' field.  To
  preserve the previous ABI, the old ioctl value is mapped to SMB_OLD_BREAD
  which doesn't copy the updated smbcmd back out to userland.  I doubt anyone
  actually used the old BREAD anyway as it was rediculous to do a bulk-read
  but not tell the using program how much data was actually read.
- Make the smbus driver and devclass public in the smbus module and
  push all the DRIVER_MODULE()'s for attaching the smbus driver to
  various foosmb drivers out into the foosmb modules.  This makes all
  the foosmb logic centralized and allows new foosmb modules to be
  self-contained w/o having to hack smbus.c everytime a new smbus driver
  is added.
- Add a new SMB_EINVAL error bit and use it in place of EINVAL to return
  an error for bad arguments (such as invalid counts for bread and bwrite).
- Map SMB bus error bits to EIO in smbus_error().
- Make the smbus driver call bus_generic_probe() and require child drivers
  such as smb(4) to create device_t's via identify routines.  Previously,
  smbus just created one anonymous device during attach, and if you had
  multiple drivers that could attach it was just random chance as to which
  driver got to probe for the sole device_t first.
- Add a mutex to the smbus(4) softc and use it in place of dummy splhigh()
  to protect the 'owner' field and perform necessary synchronization for
  smbus_request_bus() and smbus_release_bus().
- Change the bread() and bwrite() methods of alpm(4), amdpm(4), and
  viapm(4) to only perform a single transaction and not try to use a
  loop of multiple transactions for a large request.  The framing and
  commands to use for a large transaction depend on the upper-layer
  protocol (such as SSIF for IPMI over SMBus) from what I can tell, and the
  smb(4) driver never allowed bulk read/writes of more than 32-bytes
  anyway.  The other smb drivers only performed single transactions.
- Fix buffer overflows in the bread() methods of ichsmb(4), alpm(4),
  amdpm(4), amdsmb(4), intpm(4), and nfsmb(4).
- Use SMB_xxx errors in viapm(4).
- Destroy ichsmb(4)'s mutex after bus_generic_detach() to avoid problems
  from child devices making smb upcalls that would use the mutex during
  their detach methods.

MFC after:	1 week
Reviewed by:	jmg (mostly)
2006-09-11 20:52:41 +00:00
Poul-Henning Kamp
c40da00ca3 Since DELAY() was moved, most <machine/clock.h> #includes have been
unnecessary.
2006-05-16 14:37:58 +00:00
Ruslan Ermilov
3238c6bd33 Fix -Wundef from compiling the amd64 LINT. 2005-12-04 10:06:06 +00:00
John Baldwin
aa14e8f4b4 Add the device ID for the VIA VT8235 south bridge.
PR:		kern/62438
Submitted by:	FUJIMOTO Kou fujimoto at j dot dendai dot ac dot jp
Tested by:	Oliver Fromme olli at secnetix dot de
MFC after:	1 week
2005-10-31 18:43:28 +00:00
John Baldwin
6647585e2d Some of the VIA pm and propm devices are actually the same device as the
PCI-ISA bridge.  Thus, when viapm0 or viapropm0 attaches, isab0 dosen't
attach so there is no isa0 bus hung off of that bridge.  In the non-ACPI
case, legacy0 will add an isa0 anyway as a fail-safe, but ACPI assumes that
any ISA bus will be enumerated via a bridge.  To fix this, call
isab_attach() to attach an isa0 ISA child bus device if the pm or propm
device we are probing is a PCI-ISA bridge.  Both drivers now have to
implement the bus_if interface via the generic methods for resource
allocation, etc. to work.  Also, we now add 2 new ISA bus drivers that
attach to viapm and viapropm devices.

PR:		kern/87363
Reported by:	Oliver Fromme olli at secnetix dot de
Tested by:	glebius
MFC after:	1 week
2005-10-31 18:31:16 +00:00
Yoshihiro Takahashi
d4fcf3cba5 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00
Warner Losh
d701c91325 Return BUS_PROBE_DEFAULT instead of 0. 2005-02-24 21:32:56 +00:00
Stefan Farfeleder
e7b80a8e24 Prefer C99's __func__ over GCC's __FUNCTION__. 2004-09-22 17:16:04 +00:00
Nate Lawson
5f96beb9e0 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
Warner Losh
19b7ffd1b8 Prefer new location of pci include files (which have only been in the
tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
2003-08-22 07:20:27 +00:00
Matthew N. Dodd
5e4e521f76 Add ID for VT8233A.
PR:		 i386/38299
Submitted by:	 Rob Schulhof <rrs@there.net>
2003-06-22 06:50:02 +00:00
David E. O'Brien
f4636c5959 Use __FBSDID(). 2003-06-11 06:34:30 +00:00
Matthew N. Dodd
f246e4a17f - Express hard dependencies on bus (pci, isa, pccard) and
network layer (ether).
- Don't abuse module names to facilitate ifconfig module loading;
  such abuse isn't really needed.  (And if we do need type information
  associated with a module then we should make it explicit and not
  use hacks.)
2003-04-15 06:37:30 +00:00
Alfred Perlstein
a3f8cf2bbd Fix an unparenthasized macro argument. md5s differ but this is likely
to order of operations that are actually fixed by the proper parenthasizing.
2002-11-09 20:13:16 +00:00
Nicolas Souchu
c17d43407f Major rework of the iicbus/smbus framework:
- VIA chipset SMBus controllers added
	- alpm driver updated
	- Support for dynamic modules added
	- bktr FreeBSD smbus updated but not tested
	- cleanup
2002-03-23 15:49:15 +00:00