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* newbus: replace leftover device unit wildcardsAhmad Khalifa2025-06-211-1/+1
| | | | | | Reviewed by: imp, jhb Approved by: imp (mentor) Differential Revision: https://reviews.freebsd.org/D50913
* newbus: replace -1 in BUS_ADD_CHILD(...-1) with DEVICE_UNIT_ANYWarner Losh2024-07-251-1/+1
| | | | Sponsored by: Netflix
* newbus: globally replace device_add_child(..., -1) with DEVICE_UNIT_ANYWarner Losh2024-07-251-1/+1
| | | | Sponsored by: Netflix
* sys: Remove $FreeBSD$: one-line .c patternWarner Losh2023-08-161-2/+0
| | | | Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
* spdx: The BSD-2-Clause-FreeBSD identifier is obsolete, drop -FreeBSDWarner Losh2023-05-121-1/+1
| | | | | | | | | 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
* ppbus/ppc: Remove unused devclass arguments to DRIVER_MODULE.John Baldwin2022-05-061-3/+1
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* Remove unused iicbb_devclass.John Baldwin2022-05-061-1/+1
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* ppbus: clean up empty lines in .c and .h filesMateusz Guzik2020-09-011-1/+0
| | | | Notes: svn path=/head/; revision=365176
* sys/dev: further adoption of SPDX licensing ID tags.Pedro F. Giffuni2017-11-271-0/+2
| | | | | | | | | | | | | | | 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. Notes: svn path=/head/; revision=326255
* - There's no need to overwrite the default device method with the defaultMarius Strobl2011-11-221-4/+1
| | | | | | | | | | | | | one. Interestingly, these are actually the default for quite some time (bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9) since r52045) but even recently added device drivers do this unnecessarily. Discussed with: jhb, marcel - While at it, use DEVMETHOD_END. Discussed with: jhb - Also while at it, use __FBSDID. Notes: svn path=/head/; revision=227843
* Make the bit-bang callbacks for i2c implementation match their prototypes.Warner Losh2009-03-121-3/+3
| | | | Notes: svn path=/head/; revision=189725
* Add locking to ppc and ppbus and mark the whole lot MPSAFE:John Baldwin2009-01-211-23/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - To avoid having a bunch of locks that end up always getting acquired as a group, give each ppc(4) device a mutex which it shares with all the child devices including ppbus(4), lpt(4), plip(4), etc. This mutex is then used for all the locking. - Rework the interrupt handling stuff yet again. Now ppbus drivers setup their interrupt handler during attach and tear it down during detach like most other drivers. ppbus(4) only invokes the interrupt handler of the device that currently owns the bus (if any) when an interrupt occurs, however. Also, interrupt handlers in general now accept their softc pointers as their argument rather than the device_t. Another feature of the ppbus interrupt handlers is that they are called with the parent ppc device's lock already held. This minimizes the number of lock operations during an interrupt. - Mark plip(4), lpt(4), pcfclock(4), ppi(4), vpo(4) MPSAFE. - lpbb(4) uses the ppc lock instead of Giant. - Other plip(4) changes: - Add a mutex to protect the global tables in plip(4) and free them on module unload. - Add a detach routine. - Split out the init/stop code from the ioctl routine into separate functions. - Other lpt(4) changes: - Use device_printf(). - Use a dedicated callout for the lptout timer. - Allocate the I/O buffers at attach and detach rather than during open and close as this simplifies the locking at the cost of 1024+32 bytes when the driver is attached. - Other ppi(4) changes: - Use an sx lock to serialize open and close. - Remove unused HADBUS flag. - Add a detach routine. - Use a malloc'd buffer for each read and write to avoid races with concurrent read/write. - Other pps(4) changes: - Use a callout rather than a callout handle with timeout(). - Conform to the new ppbus requirements (regular mutex, non-filter interrupt handler). pps(4) is probably going to have to become a standalone driver that doesn't use ppbus(4) to satisfy it's requirements for low latency as a result. - Use an sx lock to serialize open and close. - Other vpo(4) changes: - Use the parent ppc device's lock to create the CAM sim instead of Giant. - Other ppc(4) changes: - Fix ppc_isa's detach method to detach instead of calling attach. Tested by: no one :-( Notes: svn path=/head/; revision=187576
* Various whitespace and style fixes.John Baldwin2008-11-161-4/+4
| | | | Notes: svn path=/head/; revision=185003
* Several cleanups to remove the need for explicit unit numbers and a fewJohn Baldwin2008-10-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | other fixes: - Add pointers back to device_t objects in softc structures instead of storing the unit and using devclass_get_device(). - Add 'lpbb', 'pcf', 'pps', and 'vpo' child devices to every 'ppbus' device instead of just the first one. - Store softc pointers in si_drv1 of character devices instead of pulling the unit number from the minor number and using devclass_get_softc() and devclass_get_device(). - Store the LP_BYPASS flag in si_drv2 instead of encoding it in the minor number. - Destroy character devices for lpt(4) when detaching the device. - Use bus_print_child_footer() instead of duplicating it in ppbus_print_child() and fix ppbus_print_child()'s return value. - Remove unused AVM ivar from ppbus. - Don't store the 'mode' ivar in the ppbus ivars since we always fetch it from the parent anyway. - Try to detach all the child devices before deleting them in ppbus_detach(). - Use pause() instead of a tsleep() on a dummy address when polling the ppbus. - Use if_printf() and device_printf() instead of explicit names with unit numbers. Silence on: current@ Notes: svn path=/head/; revision=184130
* Add locking to the various iicbus(4) bridge drivers:John Baldwin2008-08-041-13/+41
| | | | | | | | | | | | | | | | | | | | | | | | - 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) Notes: svn path=/head/; revision=181303
* Add missing MODULE_DEPEND() so that ppbus.ko and these .ko's can beRuslan Ermilov2005-12-211-0/+1
| | | | | | | loaded dynamically. Notes: svn path=/head/; revision=153610
* Prevent the strange situation that after each load/unload of a ppbusGuido van Rooij2004-03-181-1/+5
| | | | | | | | | | | | | | | | | | device, the device is probed multiple times (so each device is detected N times after unloading/loading the module N-1 times). The real fix is (quote Doug and Warner): > : In an ideal world, there should be some kind of BUS_UNIDENTIFY method > : which a driver could use to delete the devices it created in > : BUS_IDENTIFY. > > Or the bus would have a driver deleted routine that got called and it > would remove all instances of the devclass attached to it. Reviewed by: Doug Rabson & Warner Losh Notes: svn path=/head/; revision=127189
* Use __FBSDID().David E. O'Brien2003-08-241-1/+3
| | | | | | | Also some minor style cleanups. Notes: svn path=/head/; revision=119418
* This makes ppbus childs like lpt and ppi succesfully connect to moreBernd Walter2002-04-071-1/+1
| | | | | | | | | | | than just the first ppbus. The child drivers always tried to attach unit 0. Reviewed by: gallatin Approved by: gallatin Notes: svn path=/head/; revision=94154
* Major rework of the iicbus/smbus framework:Nicolas Souchu2002-03-231-39/+32
| | | | | | | | | | | - VIA chipset SMBus controllers added - alpm driver updated - Support for dynamic modules added - bktr FreeBSD smbus updated but not tested - cleanup Notes: svn path=/head/; revision=93023
* Remove unneeded #include <machine/clock.h>Poul-Henning Kamp2000-10-151-1/+0
| | | | Notes: svn path=/head/; revision=67164
* Remove ~25 unneeded #include <sys/conf.h>Poul-Henning Kamp2000-04-191-2/+0
| | | | | | | Remove ~60 unneeded #include <sys/malloc.h> Notes: svn path=/head/; revision=59391
* Remove unneeded <sys/buf.h> includes.Poul-Henning Kamp2000-04-181-1/+0
| | | | | | | | Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks by 924 bytes. Notes: svn path=/head/; revision=59368
* Some newbus-inspired tidy-ups. Use device_identify() rather than scanningPeter Wemm2000-01-231-36/+34
| | | | | | | | | | | | | | | the resource table to locate children. The 'at ppbus?' can go again. Remove a few #if Nxxx > 0' type things, config arranges this for us. Move the newbus method glue next to the DRIVER_MODULE() stuff so we don't need extra prototypes. Don't set device descriptions until after the possibility of the probe returning an error. Remove all cdevsw_add() calls, all the drivers that did this also use make_dev() correctly, so it's not required. A couple of other minor nits. Notes: svn path=/head/; revision=56455
* Port of ppbus standalone framework to the newbus system.Nicolas Souchu2000-01-141-117/+45
| | | | | | | | | | | | | | | | | | | | | | | | Note1: the correct interrupt level is invoked correctly for each driver. For this purpose, drivers request the bus before being able to call BUS_SETUP_INTR and BUS_TEARDOWN_INTR call is forced by the ppbus core when drivers release it. Thus, when BUS_SETUP_INTR is called at ppbus driver level, ppbus checks that the caller owns the bus and stores the interrupt handler cookie (in order to unregister it later). Printing is impossible while plip link is up is still TRUE. vpo (ZIP driver) and lpt are make in such a way that using the ZIP and printing concurrently is permitted is also TRUE. Note2: specific chipset detection is not done by default. PPC_PROBE_CHIPSET is now needed to force chipset detection. If set, the flags 0x40 still avoid detection at boot. Port of the pcf(4) driver to the newbus system (was previously directly connected to the rootbus and attached by a bogus pcf_isa_probe function). Notes: svn path=/head/; revision=55939
* Change #ifdef KERNEL to #ifdef _KERNEL in the public headers. "KERNEL"Peter Wemm1999-12-291-2/+2
| | | | | | | | | is an application space macro and the applications are supposed to be free to use it as they please (but cannot). This is consistant with the other BSD's who made this change quite some time ago. More commits to come. Notes: svn path=/head/; revision=55205
* Remove the 'ivars' arguement to device_add_child() andMatthew N. Dodd1999-12-031-2/+2
| | | | | | | | | | | | | | | | | | | device_add_child_ordered(). 'ivars' may now be set using the device_set_ivars() function. This makes it easier for us to change how arbitrary data structures are associated with a device_t. Eventually we won't be modifying device_t to add additional pointers for ivars, softc data etc. Despite my best efforts I've probably forgotten something so let me know if this breaks anything. I've been running with this change for months and its been quite involved actually isolating all the changes from the rest of the local changes in my tree. Reviewed by: peter, dfr Notes: svn path=/head/; revision=54073
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Alter the behavior of sys/kern/subr_bus.c:device_print_child()Matthew N. Dodd1999-07-291-11/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - device_print_child() either lets the BUS_PRINT_CHILD method produce the entire device announcement message or it prints "foo0: not found\n" Alter sys/kern/subr_bus.c:bus_generic_print_child() to take on the previous behavior of device_print_child() (printing the "foo0: <FooDevice 1.1>" bit of the announce message.) Provide bus_print_child_header() and bus_print_child_footer() to actually print the output for bus_generic_print_child(). These functions should be used whenever possible (unless you can just use bus_generic_print_child()) The BUS_PRINT_CHILD method now returns int instead of void. Modify everything else that defines or uses a BUS_PRINT_CHILD method to comply with the above changes. - Devices are 'on' a bus, not 'at' it. - If a custom BUS_PRINT_CHILD method does the same thing as bus_generic_print_child(), use bus_generic_print_child() - Use device_get_nameunit() instead of both device_get_name() and device_get_unit() - All BUS_PRINT_CHILD methods return the number of characters output. Reviewed by: dfr, peter Notes: svn path=/head/; revision=49195
* Move the declaration of the interrupt type from the driver structureDoug Rabson1999-05-081-2/+1
| | | | | | | to the BUS_SETUP_INTR call. Notes: svn path=/head/; revision=46743
* Major ppbus commit with:Nicolas Souchu1999-01-101-9/+1
| | | | | | | | | | | | | | | | | | | | | | + ECP parallel port chipset FIFO detection + DMA+FIFO parallel I/O handled as chipset specific + nlpt updated in order to use the above enhanced parallel I/O. Use 'lptcontrol -e' to use enhanced I/O + Various options documented in LINT + Full IEEE1284 NIBBLE and BYTE modes support. See ppbus(4) for an overview of the IEEE1284 standard + Detection of PnP parallel devices at boot + Read capability added to nlpt driver to get IEEE1284 compliant printer status with a simple 'cat /dev/lpt0' + IEEE1284 peripheral emulation added to BYTE mode. Two computers may dialog according to IEEE1284 signaling method. See PERIPH_1284 option and /sys/dev/ppbus/ppi.c All this code is supposed to provide basic functions for IEEE1284 programming. ppi.c and nlpt.c may act as examples. Notes: svn path=/head/; revision=42475
* The "easy" fixes for compiling the kernel -Wunused: remove unreferenced staticArchie Cobbs1998-12-071-2/+1
| | | | | | | and local variables, goto labels, and functions declared but not defined. Notes: svn path=/head/; revision=41591
* Release the ppbus when probe fails.Nicolas Souchu1998-11-091-2/+5
| | | | Notes: svn path=/head/; revision=41042
* lpbb is the official Philips parallel I2C interface. lpbb.c contains onlyNicolas Souchu1998-10-311-0/+325
basic i/o functions, bit-banging mechanism is implemented by dev/iicbus/iicbb.c immio.c: some bootverbose logs to watch zip+ connect/disconnect process Notes: svn path=/head/; revision=40783
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