mirror of
https://git.hardenedbsd.org/hardenedbsd/HardenedBSD.git
synced 2025-01-11 17:04:19 +01:00
Devfs support.
Submitted by: hosokawa@mt.cs.keio.ac.jp and the rest of the Nomads Cleanup.
This commit is contained in:
Nate Williams
parent
a92dd1ae3a
commit
206bb9d772
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=14680
@ -13,7 +13,7 @@
|
||||
*
|
||||
* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
|
||||
*
|
||||
* $Id: apm.c,v 1.27 1996/03/13 00:41:38 nate Exp $
|
||||
* $Id: apm.c,v 1.28 1996/03/18 21:58:22 nate Exp $
|
||||
*/
|
||||
|
||||
#include "apm.h"
|
||||
@ -59,6 +59,18 @@ struct apm_softc {
|
||||
void *sc_devfs_token;
|
||||
};
|
||||
|
||||
static struct kern_devconf kdc_apm = {
|
||||
0, 0, 0, /* filled in by dev_attach */
|
||||
"apm", 0, { MDDT_ISA, 0 },
|
||||
isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
|
||||
&kdc_isa0, /* parent */
|
||||
0, /* parentdata */
|
||||
DC_UNCONFIGURED, /* state */
|
||||
"APM BIOS",
|
||||
DC_CLS_MISC /* class */
|
||||
};
|
||||
|
||||
|
||||
static struct apm_softc apm_softc;
|
||||
static struct apmhook *hook[NAPM_HOOK]; /* XXX */
|
||||
|
||||
@ -78,6 +90,18 @@ static struct cdevsw apm_cdevsw =
|
||||
apmioctl, nostop, nullreset, nodevtotty,/* APM */
|
||||
seltrue, nommap, NULL , "apm" ,NULL, -1};
|
||||
|
||||
static void
|
||||
apm_registerdev(struct isa_device *id)
|
||||
{
|
||||
if (kdc_apm.kdc_isa)
|
||||
return;
|
||||
kdc_apm.kdc_state = DC_UNCONFIGURED;
|
||||
kdc_apm.kdc_description = "APM BIOS";
|
||||
kdc_apm.kdc_unit = 0;
|
||||
kdc_apm.kdc_isa = id;
|
||||
dev_attach(&kdc_apm);
|
||||
}
|
||||
|
||||
/* setup APM GDT discriptors */
|
||||
static void
|
||||
setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code_limit, u_int data_limit)
|
||||
@ -583,6 +607,7 @@ apmprobe(struct isa_device *dvp)
|
||||
printf("apm: Only one APM driver supported.\n");
|
||||
return 0;
|
||||
}
|
||||
apm_registerdev(dvp);
|
||||
switch (apm_version) {
|
||||
case APMINI_CANTFIND:
|
||||
/* silent */
|
||||
@ -660,27 +685,6 @@ apm_processevent(struct apm_softc *sc)
|
||||
* Attach APM:
|
||||
*
|
||||
* Initialize APM driver (APM BIOS itself has been initialized in locore.s)
|
||||
*
|
||||
* Now, unless I'm mad, (not quite ruled out yet), the APM-1.1 spec is bogus:
|
||||
*
|
||||
* Appendix C says under the header "APM 1.0/APM 1.1 Modal BIOS Behavior"
|
||||
* that "When an APM Driver connects with an APM 1.1 BIOS, the APM 1.1 BIOS
|
||||
* will default to an APM 1.0 connection. After an APM Driver calls the APM
|
||||
* Driver Version function, specifying that it supports APM 1.1, and [sic!]
|
||||
* APM BIOS will change its behavior to an APM 1.1 connection. If the APM
|
||||
* BIOS is an APM 1.0 BIOS, the APM Driver Version function call will fail,
|
||||
* and the connection will remain an APM 1.0 connection."
|
||||
*
|
||||
* OK so I can establish a 1.0 connection, and then tell that I'm a 1.1
|
||||
* and maybe then the BIOS will tell that it too is a 1.1.
|
||||
* Fine.
|
||||
* Now how will I ever get the segment-limits for instance ? There is no
|
||||
* way I can see that I can get a 1.1 response back from an "APM Protected
|
||||
* Mode 32-bit Interface Connect" function ???
|
||||
*
|
||||
* Who made this, Intel and Microsoft ? -- How did you guess !
|
||||
*
|
||||
* /phk
|
||||
*/
|
||||
|
||||
static int
|
||||
@ -690,8 +694,9 @@ apmattach(struct isa_device *dvp)
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
|
||||
sc->initialized = 0;
|
||||
|
||||
/* Must be externally enabled */
|
||||
sc->active = 0;
|
||||
sc->halt_cpu = 1;
|
||||
|
||||
/* setup APM parameters */
|
||||
sc->cs16_base = (apm_cs32_base << 4) + APM_KERNBASE;
|
||||
@ -701,6 +706,7 @@ apmattach(struct isa_device *dvp)
|
||||
sc->ds_limit = apm_ds_limit;
|
||||
sc->cs_entry = apm_cs_entry;
|
||||
|
||||
sc->halt_cpu = 1;
|
||||
sc->idle_cpu = ((apm_flags & APM_CPUIDLE_SLOW) != 0);
|
||||
sc->disabled = ((apm_flags & APM_DISABLED) != 0);
|
||||
sc->disengaged = ((apm_flags & APM_DISENGAGED) != 0);
|
||||
@ -791,12 +797,8 @@ apmopen(dev_t dev, int flag, int fmt, struct proc *p)
|
||||
{
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
|
||||
if (minor(dev) != 0 ) {
|
||||
if (minor(dev) != 0 || !sc->initialized)
|
||||
return (ENXIO);
|
||||
}
|
||||
if (!sc->initialized) {
|
||||
return (ENXIO);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -813,16 +815,11 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
int error = 0;
|
||||
|
||||
if (minor(dev) != 0 || !sc->initialized)
|
||||
return (ENXIO);
|
||||
#ifdef APM_DEBUG
|
||||
printf("APM ioctl: cmd = 0x%x\n", cmd);
|
||||
#endif
|
||||
|
||||
if (minor(dev) != 0) {
|
||||
return ENXIO;
|
||||
}
|
||||
if (!sc->initialized) {
|
||||
return ENXIO;
|
||||
}
|
||||
switch (cmd) {
|
||||
case APMIO_SUSPEND:
|
||||
apm_suspend();
|
||||
@ -833,9 +830,11 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
|
||||
}
|
||||
break;
|
||||
case APMIO_ENABLE:
|
||||
kdc_apm.kdc_state = DC_BUSY;
|
||||
apm_event_enable(sc);
|
||||
break;
|
||||
case APMIO_DISABLE:
|
||||
kdc_apm.kdc_state = DC_IDLE;
|
||||
apm_event_disable(sc);
|
||||
break;
|
||||
case APMIO_HALTCPU:
|
||||
|
||||
@ -13,7 +13,7 @@
|
||||
*
|
||||
* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
|
||||
*
|
||||
* $Id: apm.c,v 1.27 1996/03/13 00:41:38 nate Exp $
|
||||
* $Id: apm.c,v 1.28 1996/03/18 21:58:22 nate Exp $
|
||||
*/
|
||||
|
||||
#include "apm.h"
|
||||
@ -59,6 +59,18 @@ struct apm_softc {
|
||||
void *sc_devfs_token;
|
||||
};
|
||||
|
||||
static struct kern_devconf kdc_apm = {
|
||||
0, 0, 0, /* filled in by dev_attach */
|
||||
"apm", 0, { MDDT_ISA, 0 },
|
||||
isa_generic_externalize, 0, 0, ISA_EXTERNALLEN,
|
||||
&kdc_isa0, /* parent */
|
||||
0, /* parentdata */
|
||||
DC_UNCONFIGURED, /* state */
|
||||
"APM BIOS",
|
||||
DC_CLS_MISC /* class */
|
||||
};
|
||||
|
||||
|
||||
static struct apm_softc apm_softc;
|
||||
static struct apmhook *hook[NAPM_HOOK]; /* XXX */
|
||||
|
||||
@ -78,6 +90,18 @@ static struct cdevsw apm_cdevsw =
|
||||
apmioctl, nostop, nullreset, nodevtotty,/* APM */
|
||||
seltrue, nommap, NULL , "apm" ,NULL, -1};
|
||||
|
||||
static void
|
||||
apm_registerdev(struct isa_device *id)
|
||||
{
|
||||
if (kdc_apm.kdc_isa)
|
||||
return;
|
||||
kdc_apm.kdc_state = DC_UNCONFIGURED;
|
||||
kdc_apm.kdc_description = "APM BIOS";
|
||||
kdc_apm.kdc_unit = 0;
|
||||
kdc_apm.kdc_isa = id;
|
||||
dev_attach(&kdc_apm);
|
||||
}
|
||||
|
||||
/* setup APM GDT discriptors */
|
||||
static void
|
||||
setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code_limit, u_int data_limit)
|
||||
@ -583,6 +607,7 @@ apmprobe(struct isa_device *dvp)
|
||||
printf("apm: Only one APM driver supported.\n");
|
||||
return 0;
|
||||
}
|
||||
apm_registerdev(dvp);
|
||||
switch (apm_version) {
|
||||
case APMINI_CANTFIND:
|
||||
/* silent */
|
||||
@ -660,27 +685,6 @@ apm_processevent(struct apm_softc *sc)
|
||||
* Attach APM:
|
||||
*
|
||||
* Initialize APM driver (APM BIOS itself has been initialized in locore.s)
|
||||
*
|
||||
* Now, unless I'm mad, (not quite ruled out yet), the APM-1.1 spec is bogus:
|
||||
*
|
||||
* Appendix C says under the header "APM 1.0/APM 1.1 Modal BIOS Behavior"
|
||||
* that "When an APM Driver connects with an APM 1.1 BIOS, the APM 1.1 BIOS
|
||||
* will default to an APM 1.0 connection. After an APM Driver calls the APM
|
||||
* Driver Version function, specifying that it supports APM 1.1, and [sic!]
|
||||
* APM BIOS will change its behavior to an APM 1.1 connection. If the APM
|
||||
* BIOS is an APM 1.0 BIOS, the APM Driver Version function call will fail,
|
||||
* and the connection will remain an APM 1.0 connection."
|
||||
*
|
||||
* OK so I can establish a 1.0 connection, and then tell that I'm a 1.1
|
||||
* and maybe then the BIOS will tell that it too is a 1.1.
|
||||
* Fine.
|
||||
* Now how will I ever get the segment-limits for instance ? There is no
|
||||
* way I can see that I can get a 1.1 response back from an "APM Protected
|
||||
* Mode 32-bit Interface Connect" function ???
|
||||
*
|
||||
* Who made this, Intel and Microsoft ? -- How did you guess !
|
||||
*
|
||||
* /phk
|
||||
*/
|
||||
|
||||
static int
|
||||
@ -690,8 +694,9 @@ apmattach(struct isa_device *dvp)
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
|
||||
sc->initialized = 0;
|
||||
|
||||
/* Must be externally enabled */
|
||||
sc->active = 0;
|
||||
sc->halt_cpu = 1;
|
||||
|
||||
/* setup APM parameters */
|
||||
sc->cs16_base = (apm_cs32_base << 4) + APM_KERNBASE;
|
||||
@ -701,6 +706,7 @@ apmattach(struct isa_device *dvp)
|
||||
sc->ds_limit = apm_ds_limit;
|
||||
sc->cs_entry = apm_cs_entry;
|
||||
|
||||
sc->halt_cpu = 1;
|
||||
sc->idle_cpu = ((apm_flags & APM_CPUIDLE_SLOW) != 0);
|
||||
sc->disabled = ((apm_flags & APM_DISABLED) != 0);
|
||||
sc->disengaged = ((apm_flags & APM_DISENGAGED) != 0);
|
||||
@ -791,12 +797,8 @@ apmopen(dev_t dev, int flag, int fmt, struct proc *p)
|
||||
{
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
|
||||
if (minor(dev) != 0 ) {
|
||||
if (minor(dev) != 0 || !sc->initialized)
|
||||
return (ENXIO);
|
||||
}
|
||||
if (!sc->initialized) {
|
||||
return (ENXIO);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -813,16 +815,11 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
int error = 0;
|
||||
|
||||
if (minor(dev) != 0 || !sc->initialized)
|
||||
return (ENXIO);
|
||||
#ifdef APM_DEBUG
|
||||
printf("APM ioctl: cmd = 0x%x\n", cmd);
|
||||
#endif
|
||||
|
||||
if (minor(dev) != 0) {
|
||||
return ENXIO;
|
||||
}
|
||||
if (!sc->initialized) {
|
||||
return ENXIO;
|
||||
}
|
||||
switch (cmd) {
|
||||
case APMIO_SUSPEND:
|
||||
apm_suspend();
|
||||
@ -833,9 +830,11 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
|
||||
}
|
||||
break;
|
||||
case APMIO_ENABLE:
|
||||
kdc_apm.kdc_state = DC_BUSY;
|
||||
apm_event_enable(sc);
|
||||
break;
|
||||
case APMIO_DISABLE:
|
||||
kdc_apm.kdc_state = DC_IDLE;
|
||||
apm_event_disable(sc);
|
||||
break;
|
||||
case APMIO_HALTCPU:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user