#
473c90ac |
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10-May-2024 |
John Baldwin <jhb@FreeBSD.org> |
uio: Use switch statements when handling UIO_READ vs UIO_WRITE This is mostly to reduce the diff with CheriBSD which adds additional constants to enum uio_rw, but also matches the normal style used for uio_segflg. Reviewed by: kib, emaste Obtained from: CheriBSD Differential Revision: https://reviews.freebsd.org/D45142
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#
682b069c |
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29-Nov-2023 |
Stephen J. Kiernan <stevek@FreeBSD.org> |
iicbus: add compat32 support for I2C ioctls Some of the I2C ioctl request structures contain pointers and need to handle requests from 32-bit applications on 64-bit kernels. Obtained from: Juniper Networks, Inc. Differential Revision: https://reviews.freebsd.org/D42836
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#
95ee2897 |
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16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: two-line .h pattern Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
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#
4d846d26 |
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10-May-2023 |
Warner Losh <imp@FreeBSD.org> |
spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSD The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
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#
3a866152 |
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20-Apr-2022 |
John Baldwin <jhb@FreeBSD.org> |
iicbus: Remove unused devclass arguments to DRIVER_MODULE.
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#
718cf2cc |
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27-Nov-2017 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
sys/dev: further adoption of SPDX licensing ID tags. Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
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#
523a6367 |
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19-May-2016 |
Jason A. Harmening <jah@FreeBSD.org> |
iic_rdwr_data->nmsgs is uint32_t, so limit the allowable number of messages to prevent memory exhaustion and short allocations on 32-bit systems. Since iicrdwr is intended to be a workalike of a Linux i2c-dev call, use the same limit of 42 that Linux uses. Also check the return value of copyin(9) to prevent unnecessary allocation in the failure case. Submitted by: ngie Reviewed by: kib MFC after: 1 week Differential Revision: https://reviews.freebsd.org/D5155
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#
d52f763c |
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30-Jan-2016 |
Enji Cooper <ngie@FreeBSD.org> |
Use the correct type for i when iterating over `buf` to avoid unlikely negative array indexing in iicrdwr(..) Differential Revision: https://reviews.freebsd.org/D5132 Obtained from: HardenedBSD PR: 206754 Reported by: CTurt <cturt@hardenedbsd.org> Submitted by: Madhi Moktari <mokhi64@gmail.com> Sponsored by: EMC / Isilon Storage Division
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#
0afebee2 |
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21-Apr-2015 |
Jason A. Harmening <jah@FreeBSD.org> |
Fix numerous issues in iic(4) and iicbus(4): --Allow multiple open iic fds by storing addressing state in cdevpriv --Fix, as much as possible, the baked-in race conditions in the iic ioctl interface by requesting bus ownership on I2CSTART, releasing it on I2CSTOP/I2CRSTCARD, and requiring bus ownership by the current cdevpriv to use the I/O ioctls --Reduce internal iic buffer size and remove 1K read/write limit by iteratively calling iicbus_read/iicbus_write --Eliminate dynamic allocation in I2CWRITE/I2CREAD --Move handling of I2CRDWR to separate function and improve error handling --Add new I2CSADDR ioctl to store address in current cdevpriv so that I2CSTART is not needed for read(2)/write(2) to work --Redesign iicbus_request_bus() and iicbus_release_bus(): --iicbus_request_bus() no longer falls through if the bus is already owned by the requesting device. Multiple threads on the same device may want exclusive access. Also, iicbus_release_bus() was never device-recursive anyway. --Previously, if IICBUS_CALLBACK failed in iicbus_release_bus(), but the following iicbus_poll() call succeeded, IICBUS_CALLBACK would not be issued again --Do not hold iicbus mtx during IICBUS_CALLBACK call. There are several drivers that may sleep in IICBUS_CALLBACK, if IIC_WAIT is passed. --Do not loop in iicbus_request_bus if IICBUS_CALLBACK returns EWOULDBLOCK; instead pass that to the caller so that it can retry if so desired. Differential Revision: https://reviews.freebsd.org/D2140 Reviewed by: imp, jhb, loos Approved by: kib (mentor)
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#
efce3748 |
|
12-Jul-2014 |
Rui Paulo <rpaulo@FreeBSD.org> |
Revert r268543. We should probably fix sys/gpio.h instead.
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#
bd08cbb8 |
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11-Jul-2014 |
Rui Paulo <rpaulo@FreeBSD.org> |
Move iic.h to sys/ so that it's automatically installed in /usr/include/sys. This lets us call iic(4) ioctls without needing the kernel source code and follows the same model of GPIO. MFC after: 3 weeks
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#
34aa2211 |
|
31-May-2014 |
Luiz Otavio O Souza <loos@FreeBSD.org> |
Ignore IIC_ENOADDR from iicbus_reset() as it only means we have a master-only controller. This fixes the iic bus scan with i2c(8) (on supported controllers). Tested with gpioiic(4).
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#
72794e9e |
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12-Nov-2012 |
Kevin Lo <kevlo@FreeBSD.org> |
Check the return value of uiomove(9).
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#
04c45489 |
|
16-Oct-2011 |
Christian Brueffer <brueffer@FreeBSD.org> |
Revert r226398 and instead move the allocation of usrbufs after the error check. Suggested by: pjd MFC after: 1 week
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#
0ad684e7 |
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15-Oct-2011 |
Christian Brueffer <brueffer@FreeBSD.org> |
Properly free resources in an error case. CID: 4203 Found with: Coverity Prevent(tm) MFC after: 1 week
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#
a7d5f7eb |
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19-Oct-2010 |
Jamie Gritton <jamie@FreeBSD.org> |
A new jail(8) with a configuration file, to replace the work currently done by /etc/rc.d/jail.
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#
1aef11be |
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26-Jan-2009 |
Rafal Jaworowski <raj@FreeBSD.org> |
Teach iic(4) the 'repeated start' I2C condition. This will be used by the upcoming i2c(8) diag utility. Reviewed by: bms, stas Obtained from: Semihalf
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#
ee9db219 |
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15-Jan-2009 |
Nathan Whitehorn <nwhitehorn@FreeBSD.org> |
Revert revision 186833 and try a different strategy to allow this device to work when the bus attaches its own children. Instead of hardcoding a unit number and returning BUS_PROBE_NOWILDCARD, which will break multiple iicbus systems, check in the probe routine whether the device address is 0. Real I2C devices will never have this address, but devices added with BUS_ADD_CHILD() will. Requested by: jhb Reviewed by: jhb
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#
789c4b9d |
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06-Jan-2009 |
Nathan Whitehorn <nwhitehorn@FreeBSD.org> |
Change the way I2C bus attachment works to allow firmware-assisted bus subclasses as are available with PCI. Changes I2C device drivers without real probe logic to return BUS_PROBE_NOWILDWARD to avoid interference with firmware bus enumeration, and reduces the probe priority of the iicbus base driver to allow subclass attachment at higher priority. Discussed on: freebsd-arch
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#
d7f03759 |
|
19-Oct-2008 |
Ulf Lilleengen <lulf@FreeBSD.org> |
- Import the HEAD csup code which is the basis for the cvsmode work.
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#
313f8941 |
|
04-Aug-2008 |
John Baldwin <jhb@FreeBSD.org> |
Add locking to the core iicbus(4) drivers: - Add an sx lock to the iic(4) driver to serialize open(), close(), read(), and write and to protect sc_addr and sc_count in the softc. - Use cdev->si_drv1 instead of using the minor number of the cdev to lookup the softc via newbus in iic(4). - Store the device_t in the softc to avoid a similar detour via minor numbers in iic(4). - Only add at most one instance of iic(4) and iicsmb(4) to each iicbus(4) instance, and do it in the child driver. - Add a mutex to the iicbus(4) softc to synchronize the request/release bus stuff. - Use __BUS_ACCESSOR() for IICBUS_ACCESSOR() instead of rolling our own. - Add a mutex to the iicsmb(4) softc to protect softc state updated in the interrupt handler. - Remove Giant from all the smbus methods in iicsmb(4) now that all the iicbus(4) backend is locked.
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#
d4fa6840 |
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23-Mar-2007 |
Warner Losh <imp@FreeBSD.org> |
MFp4: Make the iicbus fully hinted. We no longer automatically add some devices (and not others). To get instances onto the iicbus, one now needs hints or an identify routine. We also do not probe the bus for devices because many iic devices cannot be safely probed (and when they can, the probe order turns out to be somewhat difficult to get right). # I'm not 100% sure that the iicsmb removal is right. Please contact me if # this causes difficulty.
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#
64e04316 |
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21-Nov-2006 |
Warner Losh <imp@FreeBSD.org> |
<blush> copyout on read, not write. Tweak a comment while I'm here.
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#
ec2b5cd8 |
|
06-Sep-2006 |
Warner Losh <imp@FreeBSD.org> |
jhb points out that these mallocs don't need to be checked because of M_WAITOK.
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#
14ca3cd6 |
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06-Sep-2006 |
Warner Losh <imp@FreeBSD.org> |
MFp4: check the return value of malloc and report an error when invalid.
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#
d7fac973 |
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14-Jul-2006 |
Warner Losh <imp@FreeBSD.org> |
Allow iic bridges to support a generalized transfer, rather than forcing all transfers to do the start read/write stop by hand. Some smart bridges prefer this sort of operation, and this allows us to support their features more easily. When bridges don't support it, we fall back to using the old-style opertaions. Expand the ioctl interface to expose this function. Unlike the old-style interface, this interface is thread safe, even on old bridges.
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#
dbafaeca |
|
04-Apr-2006 |
Warner Losh <imp@FreeBSD.org> |
newbus will zero softc, so no need to duplicate the zeroing here. Plus a minor formatting nit in nearby code.
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#
b2f9074c |
|
04-Apr-2006 |
Warner Losh <imp@FreeBSD.org> |
Replace hard coded '0' with symbolic constant IIC_UNKNOWN to reflect what we're actually doing.
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#
89c9c53d |
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16-Jun-2004 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Do the dreaded s/dev_t/struct cdev */ Bump __FreeBSD_version accordingly.
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#
69271da4 |
|
16-May-2004 |
Joerg Wunsch <joerg@FreeBSD.org> |
Another candidate that didn't use copyin/copyout for user<->kernel transfers. MFC after: 1 month
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#
dc08ffec |
|
21-Feb-2004 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Device megapatch 4/6: Introduce d_version field in struct cdevsw, this must always be initialized to D_VERSION. Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
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#
c9c7976f |
|
21-Feb-2004 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Device megapatch 1/6: Free approx 86 major numbers with a mostly automatically generated patch. A number of strategic drivers have been left behind by caution, and a few because they still (ab)use their major number.
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#
b08a61b0 |
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10-Aug-2003 |
Bernd Walter <ticso@FreeBSD.org> |
Don't hardcode unit numer '0'. We can have multiple instances.
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#
7ac40f5f |
|
02-Mar-2003 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Gigacommit to improve device-driver source compatibility between branches: Initialize struct cdevsw using C99 sparse initializtion and remove all initializations to default values. This patch is automatically generated and has been tested by compiling LINT with all the fields in struct cdevsw in reverse order on alpha, sparc64 and i386. Approved by: re(scottl)
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#
531facba |
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18-Sep-2002 |
Peter Wemm <peter@FreeBSD.org> |
move <machine/iic.h> and <machine/smb.h> to <dev/iicbus/iic.h> and <dev/smbus/smb.h> - there is nothing MD about these ioctl definitions.
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#
c17d4340 |
|
23-Mar-2002 |
Nicolas Souchu <nsouch@FreeBSD.org> |
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
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#
6e551fb6 |
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10-Dec-2001 |
David E. O'Brien <obrien@FreeBSD.org> |
Update to C99, s/__FUNCTION__/__func__/, also don't use ANSI string concatenation.
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#
b40ce416 |
|
12-Sep-2001 |
Julian Elischer <julian@FreeBSD.org> |
KSE Milestone 2 Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha
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#
f8388051 |
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25-Mar-2001 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Send the remains (such as I have located) of "block major numbers" to the bit-bucket.
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#
db7e3af1 |
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15-Oct-2000 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Remove unneeded #include <machine/clock.h>
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#
3389ae93 |
|
19-Apr-2000 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Remove ~25 unneeded #include <sys/conf.h> Remove ~60 unneeded #include <sys/malloc.h>
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#
ed6aff73 |
|
18-Apr-2000 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Remove unneeded <sys/buf.h> includes. Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks by 924 bytes.
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#
38703ed3 |
|
17-Nov-1999 |
Peter Wemm <peter@FreeBSD.org> |
Convert iic to use make_dev() rather than cdevsw_add(). This stops the annoying 'iic is usurping iic's cdevsw' type messages. (Yes, there are other ways to fix cdevsw_add(), but that is a doomed api)
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#
80855566 |
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08-Nov-1999 |
Peter Wemm <peter@FreeBSD.org> |
Use cdevsw_add() explicitly and DRIVER_MODULE().
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#
fb45ca12 |
|
04-Oct-1999 |
Peter Wemm <peter@FreeBSD.org> |
Fix: WARNING: "iic" is usurping "iic"'s cdevsw[] - the DEV_DRIVER_MODULE() takes care of the cdevsw_add() - it doesn't need to be done twice.
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#
d6a0e38a |
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25-Sep-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Remove five now unused fields from struct cdevsw. They should never have been there in the first place. A GENERIC kernel shrinks almost 1k. Add a slightly different safetybelt under nostop for tty drivers. Add some missing FreeBSD tags
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#
c3aac50f |
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27-Aug-1999 |
Peter Wemm <peter@FreeBSD.org> |
$Id$ -> $FreeBSD$
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#
03016f42 |
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04-Jul-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Remove cmaj and bmaj args from DEV_DRIVER_MODULE.
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#
2447bec8 |
|
31-May-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Simplify cdevsw registration. The cdevsw_add() function now finds the major number(s) in the struct cdevsw passed to it. cdevsw_add_generic() is no longer needed, cdevsw_add() does the same thing. cdevsw_add() will print an message if the d_maj field looks bogus. Remove nblkdev and nchrdev variables. Most places they were used bogusly. Instead check a dev_t for validity by seeing if devsw() or bdevsw() returns NULL. Move bdevsw() and devsw() functions to kern/kern_conf.c Bump __FreeBSD_version to 400006 This commit removes: 72 bogus makedev() calls 26 bogus SYSINIT functions if_xe.c bogusly accessed cdevsw[], author/maintainer please fix. I4b and vinum not changed. Patches emailed to authors. LINT probably broken until they catch up.
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#
4e2f199e |
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30-May-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
This commit should be a extensive NO-OP: Reformat and initialize correctly all "struct cdevsw". Initialize the d_maj and d_bmaj fields. The d_reset field was not removed, although it is never used. I used a program to do most of this, so all the files now use the same consistent format. Please keep it that way. Vinum and i4b not modified, patches emailed to respective authors.
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#
52400704 |
|
09-May-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Unconfuse DEV_MODULE() and DEV_DRIVER_MODULE() about the difference between a major number for a dev_t.
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#
566643e3 |
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08-May-1999 |
Doug Rabson <dfr@FreeBSD.org> |
Move the declaration of the interrupt type from the driver structure to the BUS_SETUP_INTR call.
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#
46eede00 |
|
07-May-1999 |
Poul-Henning Kamp <phk@FreeBSD.org> |
Continue where Julian left off in July 1998: Virtualize bdevsw[] from cdevsw. bdevsw() is now an (inline) function. Join CDEV_MODULE and BDEV_MODULE to DEV_MODULE (please pay attention to the order of the cmaj/bmaj arguments!) Join CDEV_DRIVER_MODULE and BDEV_DRIVER_MODULE to DEV_DRIVER_MODULE (ditto!) (Next step will be to convert all bdev dev_t's to cdev dev_t's before they get to do any damage^H^H^H^H^H^Hwork in the kernel.)
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#
67c13fce |
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13-Feb-1999 |
Nicolas Souchu <nsouch@FreeBSD.org> |
Handle correctly iicbus request/release mechanism. Add iicbus allocation to the general purpose i/o iic(4) driver.
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#
bf896bd0 |
|
09-Jan-1999 |
Nicolas Souchu <nsouch@FreeBSD.org> |
Change /dev/smb and /dev/iic interface to allow user programs to interact with devices dynamically. That means, + only one /dev/iic or /dev/smb device for each smb/iic bus to access + I2C/SMB device address must be given to any ioctl + new devices may be plugged and accessed after boot, which was impossible previously (device addresses were hardcoded into the kernel)
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#
f1d19042 |
|
07-Dec-1998 |
Archie Cobbs <archie@FreeBSD.org> |
The "easy" fixes for compiling the kernel -Wunused: remove unreferenced static and local variables, goto labels, and functions declared but not defined.
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#
04f89a63 |
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31-Oct-1998 |
Nicolas Souchu <nsouch@FreeBSD.org> |
iicbb is generic support for I2C bit-banging. Other files: timeout management added to the I2C framework.
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#
7da75285 |
|
09-Sep-1998 |
Nicolas Souchu <nsouch@FreeBSD.org> |
Major number allocated for generic I2C i/o -> 105
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#
c498ec5f |
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04-Sep-1998 |
Nicolas Souchu <nsouch@FreeBSD.org> |
Device registration temporaly removed until major number allocation ok.
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#
c3e2dc6b |
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03-Sep-1998 |
Nicolas Souchu <nsouch@FreeBSD.org> |
Submitted by: nsouch Philips I2C bus generic support other new bus architecture.
|