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https://github.com/freebsd/freebsd-src
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Initial update pccard code for KLD module support. Module support
however is only marginally useful until the new-style bus (pci and isa) stuff comes onboard to give us a better shot at actually pci and isa drivers loadable (or preloadable anyway).
This commit is contained in:
Peter Wemm
parent
6d2a8f1ca0
commit
9b3df7693a
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=42819
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@ -7,16 +7,13 @@
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#ifndef _PCCARD_DRIVER_H_
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#define _PCCARD_DRIVER_H_
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struct lkm_table;
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struct pccard_device;
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extern struct linker_set pccarddrv_set;
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void pccard_add_driver __P((struct pccard_device *));
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#ifdef _I386_ISA_ISA_DEVICE_H_ /* XXX actually if inthand2_t is declared */
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int pccard_alloc_intr __P((u_int imask, inthand2_t *hand, int unit,
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u_int *maskp, u_int *pcic_imask));
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#endif
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void pccard_configure __P((void));
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void pccard_remove_driver __P((struct pccard_device *));
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int pcic_probe __P((void)); /* XXX should be linker set */
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@ -28,7 +28,7 @@
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: pccard.c,v 1.66 1998/09/24 17:56:31 nate Exp $
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* $Id: pccard.c,v 1.67 1998/11/09 09:30:55 peter Exp $
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*/
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#include "opt_devfs.h"
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@ -99,6 +99,9 @@ static void remove_device(struct pccard_devinfo *);
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static inthand2_t slot_irq_handler;
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static void power_off_slot(void *);
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static void pccard_configure(void *);
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SYSINIT(pccard, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE + 1, pccard_configure, NULL);
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#if NAPM > 0
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/*
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* For the APM stuff, the apmhook structure is kept
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@ -148,26 +151,43 @@ static struct cdevsw crd_cdevsw =
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* Each controller indicates the number of slots
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* that it sees, and these are mapped to a master
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* slot number accessed via the character device entries.
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*
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* XXX this is a relic. Each controller has it's own probe
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* configuration hook. Printing a list of configured devices
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* with pccard support probably isn't all that useful.
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*/
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void
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pccard_configure(void)
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static void
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pccard_configure(dummy)
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void *dummy;
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{
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struct pccard_device **drivers, *drv;
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struct pccard_device **driver, *drv;
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#include "pcic.h"
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#if NPCIC > 0
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pcic_probe();
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#endif
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drivers = (struct pccard_device **)pccarddrv_set.ls_items;
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/* This isn't strictly correct, but works because of initialize order */
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driver = &drivers;
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printf("Initializing PC-card drivers:");
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while ((drv = *drivers++)) {
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while ((drv = *driver++))
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printf(" %s", drv->name);
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pccard_add_driver(drv);
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}
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printf("\n");
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}
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int
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pccard_module_handler(module_t mod, int what, void *arg)
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{
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struct pccard_device *drv = (struct pccard_device *)arg;
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switch(what) {
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case MOD_LOAD:
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pccard_add_driver(drv);
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break;
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case MOD_UNLOAD:
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pccard_remove_driver(drv);
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break;
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default:
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break;
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}
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return 0;
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}
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/*
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* pccard_add_driver - Add a new driver to the list of
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* drivers available for allocation.
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@ -1,6 +1,6 @@
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/*
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* Intel PCIC or compatible Controller driver
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* May be built using LKM to make a loadable module.
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* May be built to make a loadable module.
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*-------------------------------------------------------------------------
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*
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* Copyright (c) 1995 Andrew McRae. All rights reserved.
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@ -36,6 +36,7 @@
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/select.h>
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#include <sys/interrupt.h>
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@ -66,9 +67,8 @@ static void pcic_mapirq __P((struct slot *, int));
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static timeout_t pcictimeout;
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static struct callout_handle pcictimeout_ch
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= CALLOUT_HANDLE_INITIALIZER(&pcictimeout_ch);
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#ifdef LKM
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static int pcic_handle __P((struct lkm_table *lkmtp, int cmd));
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#endif
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static int pcic_modevent __P((module_t, int, void *));
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static int pcic_unload __P((void));
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static int pcic_memory(struct slot *, int);
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static int pcic_io(struct slot *, int);
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static u_int build_freelist(u_int);
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@ -161,12 +161,6 @@ putw(struct pcic_slot *sp, int reg, unsigned short word)
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/*
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* Loadable kernel module interface.
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*/
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#ifdef LKM
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/*
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* This defines the lkm_misc module use by modload
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* to define the module name.
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*/
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MOD_MISC(pcic);
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/*
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* Module handler that processes loads and unloads.
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@ -174,73 +168,56 @@ MOD_MISC(pcic);
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* is called to install the slots (if any).
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*/
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static int
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pcic_handle(struct lkm_table *lkmtp, int cmd)
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pcic_modevent(module_t mod, int what, void *arg)
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{
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int err = 0; /* default = success*/
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static int pcic_started = 0;
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switch(cmd) {
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case LKM_E_LOAD:
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switch (what) {
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case MOD_LOAD:
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/*
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* Don't load twice! (lkmexists() is exported by kern_lkm.c)
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*/
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if (lkmexists(lkmtp))
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return(EEXIST);
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/*
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* Call the probe routine to find the slots. If
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* no slots exist, then don't bother loading the module.
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* XXX but this is not appropriate as a static module.
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*/
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if (pcic_probe() == 0)
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return(ENODEV);
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break; /* Success*/
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/*
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* Attempt to unload the slot driver.
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*/
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case LKM_E_UNLOAD:
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printf("Unloading PCIC driver\n");
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err = pcic_unload(lkmtp, cmd);
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if (pcic_probe())
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pcic_started = 1;
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break;
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case MOD_UNLOAD:
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/*
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* Attempt to unload the slot driver.
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*/
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if (pcic_started) {
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printf("Unloading PCIC driver\n");
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err = pcic_unload();
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pcic_started = 0;
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}
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break; /* Success*/
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default: /* we only understand load/unload*/
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err = EINVAL;
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default: /* we only care about load/unload; ignore shutdown */
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break;
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}
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return(err);
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}
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/*
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* External entry point; should generally match name of .o file. The
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* arguments are always the same for all loaded modules. The "load",
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* "unload", and "stat" functions in "DISPATCH" will be called under
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* their respective circumstances unless their value is "lkm_nullcmd".
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* If called, they are called with the same arguments (cmd is included to
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* allow the use of a single function, ver is included for version
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* matching between modules and the kernel loader for the modules).
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*
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* Since we expect to link in the kernel and add external symbols to
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* the kernel symbol name space in a future version, generally all
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* functions used in the implementation of a particular module should
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* be static unless they are expected to be seen in other modules or
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* to resolve unresolved symbols alread existing in the kernel (the
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* second case is not likely to ever occur).
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*
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* The entry point should return 0 unless it is refusing load (in which
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* case it should return an errno from errno.h).
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*/
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int
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pcic_mod(struct lkm_table *lkmtp, int cmd, int ver)
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{
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MOD_DISPATCH(pcic, lkmtp, cmd, ver,
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pcic_handle, pcic_handle, lkm_nullcmd);
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}
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static moduledata_t pcic_mod = {
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"pcic",
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pcic_modevent,
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0
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};
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/* After configure() has run.. bring on the new bus system! */
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DECLARE_MODULE(pcic, pcic_mod, SI_SUB_CONFIGURE, SI_ORDER_MIDDLE);
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/*
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* pcic_unload - Called when unloading a LKM.
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* Disables interrupts and resets PCIC.
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*/
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static int
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pcic_unload(struct lkm_table *lkmtp, int cmd)
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pcic_unload()
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{
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int slot;
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struct pcic_slot *sp = pcic_slots;
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@ -257,7 +234,6 @@ pcic_unload(struct lkm_table *lkmtp, int cmd)
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return(0);
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}
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#endif /* LKM */
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#if 0
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static void
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@ -575,9 +551,6 @@ pcic_probe(void)
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cinfo.irqs = free_irqs;
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cinfo.imask = &pcic_imask;
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#ifdef LKM
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bzero(pcic_slots, sizeof(pcic_slots));
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#endif
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sp = pcic_slots;
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for (slotnum = 0; slotnum < PCIC_MAX_SLOTS; slotnum++, sp++) {
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/*
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@ -41,99 +41,19 @@
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#include <sys/select.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <pccard/cardinfo.h>
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#include <pccard/driver.h>
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#include <pccard/slot.h>
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/*
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* This defines the lkm_misc module use by modload
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* to define the module name.
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*/
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MOD_MISC(skel);
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static int skelinit(struct pccard_devinfo *); /* init device */
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static void skelunload(struct pccard_devinfo *); /* Disable driver */
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static int skelintr(struct pccard_devinfo *); /* Interrupt handler */
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static struct pccard_device skel_info = {
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"skel",
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skelinit,
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skelunload,
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skelintr,
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0, /* Attributes - presently unused */
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&net_imask /* Interrupt mask for device */
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};
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DATA_SET(pccarddrv_set, skel_info);
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PCCARD_MODULE(skel, skelinit, skelunload, skelintr, 0, net_imask);
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static int opened; /* Rather minimal device state... */
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/*
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* Module handler that processes loads and unloads.
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* Once the module is loaded, the add driver routine is called
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* to register the driver.
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* If an unload is requested the remove driver routine is
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* called to deregister the driver before unloading.
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*/
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static int
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skel_handle(lkmtp, cmd)
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struct lkm_table *lkmtp;
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int cmd;
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{
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int i;
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struct lkm_misc *args = lkmtp->private.lkm_misc;
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int err = 0; /* default = success*/
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switch( cmd) {
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case LKM_E_LOAD:
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/*
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* Now register the driver
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*/
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pccard_add_driver(&skel_info);
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break; /* Success*/
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/*
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* Attempt to deregister the driver.
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*/
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case LKM_E_UNLOAD:
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pccard_remove_driver(&skel_info);
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break; /* Success*/
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default: /* we only understand load/unload*/
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err = EINVAL;
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break;
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}
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return( err);
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}
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/*
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* External entry point; should generally match name of .o file. The
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* arguments are always the same for all loaded modules. The "load",
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* "unload", and "stat" functions in "MOD_DISPATCH" will be called under
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* their respective circumstances unless their value is "nosys". If
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* called, they are called with the same arguments (cmd is included to
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* allow the use of a single function, ver is included for version
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* matching between modules and the kernel loader for the modules).
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*
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* Since we expect to link in the kernel and add external symbols to
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* the kernel symbol name space in a future version, generally all
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* functions used in the implementation of a particular module should
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* be static unless they are expected to be seen in other modules or
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* to resolve unresolved symbols alread existing in the kernel (the
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* second case is not likely to ever occur).
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*
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* The entry point should return 0 unless it is refusing load (in which
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* case it should return an errno from errno.h).
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*/
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int
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skel(lkmtp, cmd, ver)
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struct lkm_table *lkmtp;
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int cmd;
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int ver;
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{
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MOD_DISPATCH(skel,lkmtp,cmd,ver,skel_handle,skel_handle,nosys)
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}
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/*
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* Skeleton driver entry points for PCCARD configuration.
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*/
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@ -86,6 +86,24 @@ struct pccard_device {
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struct pccard_device *next;
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};
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int pccard_module_handler __P((module_t mod, int what, void *arg));
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#define PCCARD_MODULE(name, enable, disable, handler, attr, imask) \
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static struct pccard_device name ## _info = { \
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#name, \
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enable, \
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disable, \
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handler, \
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attr, \
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&imask \
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}; \
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static moduledata_t name ## _mod = { \
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"pccard_" #name, \
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pccard_module_handler, \
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&name ## _info \
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}; \
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DECLARE_MODULE(name, name ## _mod, SI_SUB_DRIVERS, SI_ORDER_MIDDLE)
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/*
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* Device structure for cards. Each card may have one
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* or more pccard drivers attached to it; each driver is assumed
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