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80 Commits

Author SHA1 Message Date
mbalmer 70a43050a4 Don't ignore the gpiobus_close() return value. Found by joerg@ using clang. 2011-11-25 13:49:43 +00:00
mbalmer e6dceed514 Initialize ga.ga_dvname in gpio_search to prevent a stack fault in config_match 2011-11-14 07:45:54 +00:00
mbalmer 092935d865 Remove an unused variable. 2011-11-13 14:02:01 +00:00
mbalmer a2091c8232 Remove software pulsing in gpio(4), this functionality is now provided 
by the gpiopwm(4) driver.
 2011-11-13 13:20:02 +00:00
mbalmer 0826f67b74 On detach, set the pin to low state. 2011-11-13 13:16:33 +00:00
mbalmer d4bc0f70c1 gpiopwm(4) is a driver to pulse GPIO pins in software. This obsoletes 
the software pulsing facilities in gpio(4) (and gpioctl(8)) which will
later be removed.
 2011-11-13 12:33:00 +00:00
mbalmer cf39ee7883 Fix non-COMPAT_50 compilation. 2011-10-03 11:31:56 +00:00
mbalmer de05db530c Unbreak and move the list of child devices to COMPAT_50. 2011-10-03 11:28:28 +00:00
mbalmer d394843f35 Remove the GPIODETACH gpio(4) ioctl (it is still available in COMPAT_50) and 
the 'detach' command line option from gpioctl(8).  Drivers that are
attached to gpio pins can be detached using the drvctl(8) command.
 2011-10-03 11:16:47 +00:00
mbalmer a429601b29 Don't cast void pointers. 2011-10-03 08:23:58 +00:00
mbalmer 550019b8a7 Add the flag locator (missed in the previous commit). 2011-10-02 10:01:25 +00:00
mbalmer 90077b6e6d Add a ga_flags field to the gpio_attach structure to hand driver 
specific flags to drivers being attached at gpio pins.  gpioiic(4)
uses this to reverse the SDA/SCL signal order.  gpioctl(8) accepts
the flag values as optional argument to the attach command.
While here, make sure we retain backwards compatability and wrap compat
code in #ifdef COMPAT_50/#endif.
 2011-10-02 09:33:18 +00:00
mbalmer 5ff9b946b6 Newline is \n, not /n. 2011-09-07 07:43:05 +00:00
mbalmer 44d0145a0a Make sure error is not used unitialized when sc->sc_attach_busy is 0. 2011-09-02 06:50:20 +00:00
mbalmer aeaf43d1cc Switch von u_int_XY to uintXY 2011-08-31 12:25:05 +00:00
mbalmer 5d1f2a00ee Add glue code to build as module. 2011-08-31 12:23:32 +00:00
mbalmer d020095c80 Remove what I committed accidentally... 2011-08-31 12:20:35 +00:00
mbalmer 582e442d26 gpio(4) keeps track of child devices attached using the GPIOATTACH ioctl(), 
so remove those references and free the memory in gpio_childdetached().
Protect access to the list of child devices with a kcondvar.
 2011-08-31 12:07:26 +00:00
mbalmer 86a49d8281 Unconditionally include <sys/modules.h>. 2011-08-30 07:22:11 +00:00
mbalmer ffbe93dc4f Register as built-in module when compiled wo/ _MODULE. 2011-08-29 15:14:04 +00:00
jmcneill 1343ee48da build with WARNS=3 2011-08-28 11:36:17 +00:00
mbalmer 92ced822d1 Add a new ioctl, GPIOPULSE to gpio(4) to allow for pulsing a pin. 
If a pin can pulse in hardware, that will be used, else it will
be pulsed in software.  There is no way yet to set the pulse frequency
for pins that pulse in hardware.  While here, make the code mpsafe and
allow more than one thread in the driver (access to ioctl is serialized).
 2011-08-28 07:48:50 +00:00
mbalmer edd34c0a58 u_int32_t -> uin32_t. 2011-08-26 15:00:07 +00:00
mbalmer c97eb22ebc fix indents 2011-08-14 18:49:17 +00:00
mbalmer b50c50a270 gpio(4) and gpiosim(4) can now be built and used as modules. While here, 
make some functions static.
 2011-08-12 08:00:52 +00:00
mbalmer 57a529d87b When reading the bits from the I2C bus, also report SCL. Fixes PR43275. 
Fix originally from Maxim Weber, thanks.
 2011-07-23 09:03:38 +00:00
joerg d4d21d35eb Annotate that gpiobus_close's return value is undesired here 2011-06-09 14:46:06 +00:00
ad 9b61e54ab7 console spam 2010-04-25 11:23:34 +00:00
dyoung c1b390d493 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.
 2010-02-24 22:37:54 +00:00
mbalmer 26bb6ca79d Unfold, bump copyright. 2010-01-24 12:25:20 +00:00
dyoung 3022acc4eb Expand PMF_FN_* macros. 2010-01-08 19:42:11 +00:00
dyoung 711b27c90c Delete unnecessary device-activation hooks. Simplify the rest. 2009-12-06 22:33:44 +00:00
dyoung 171b2851cf Simplify activation hook. 2009-11-12 19:22:08 +00:00
dyoung bb8630fab4 Delete the useless activation hook. Add a child-detached hook and 
a rescan hook.  Detach children before detaching self.
 2009-11-05 18:20:40 +00:00
mbalmer bf79ac9a26 Prevent the creation of duplicate pin names in GPIOSET. 
Problem noticed by rmind a while ago.
 2009-08-23 12:08:56 +00:00
mbalmer adac122864 Before trying to attach a child device driver, make sure the GPIO pins can 
be mapped.  This prevents drivers from later failing in the attach routine.
Problem found by me, solution suggested by jmcneill.
 2009-08-21 12:53:42 +00:00
mbalmer 066a225399 unfold short lines, fold long line. 2009-08-17 12:44:44 +00:00
mbalmer 385b2e3631 Move the keylock.h header from sys/sys to sys/dev where it really belongs. 
Add keylock options to the ALL kernel configuration.
 2009-08-15 09:43:58 +00:00
mbalmer 3ab4ce4739 Add support for multi-position electro-mechanical keylocks. An example 
driver, gpiolock(4), is provided as an example how to interface real hardware.
A new securemodel, securemodel_keylock, is provided to show how this can
be used to tie keylocks to overall system security.  This is experimental
code.  The diff has been on tech-kern for several weeks.

Reviewed by many, kauth(9) integration reviewed by Elad Efrat; approved by
tonnerre@ and tron@.  Thanks to everyone who provided feedback.
 2009-08-14 21:17:21 +00:00
mbalmer 8fc23e3158 gpioiic(4), a driver to do use GPIO pins in bit-banging mode to form an I2C 
bus.  Ported from OpenBSD.
 2009-08-09 08:18:00 +00:00
mbalmer fa4785b09a Register with the PMF, and when detaching, just the right order. 2009-08-08 10:38:17 +00:00
mbalmer 61e768bf92 Don't use an identifier name that probably clashes with the C standard. 
Requested by many.
 2009-08-07 08:15:52 +00:00
mbalmer 2ce40e808d Properly teardown the sysctl node and detach child driver if gpiosim gets 
detached itself (e.g. when the 'drvctl -d gpiosimX' command is entered).
 2009-08-07 08:08:18 +00:00
mbalmer d2c70191a8 Fold long line. 2009-08-07 08:05:48 +00:00
mbalmer 133c6e2a65 For the sake of correctness, call pmf_device_deregister() in the detach 
function.
 2009-08-06 13:16:49 +00:00
mbalmer 4b41fced4d unfold short line; debracket 2009-08-03 17:24:40 +00:00
mbalmer 38b252cce6 Be more careful when attaching drivers at runtime, call the drivers match 
routine before attaching the device.  Prevents non-working driver instances
from being created.
 2009-08-03 12:43:56 +00:00
mbalmer e1a16b3665 A better match routine that checks also the number of pins instead 
of checking the pins in the attach routine; malconfigured devices will
no longer attach.  While here, replace some printf uses by aprint_....
 2009-08-03 12:42:45 +00:00
drochner c07937acdd add dummy pmf registration to allow suspend 2009-07-28 15:28:24 +00:00
mbalmer 9d8b69b23a Do not attach gpiosim(4) at root, but make it a pseudo device. 
With help from Matthias Drochner, thanks!
 2009-07-27 17:40:57 +00:00