If vm86 services are available, use these to perform the APM BIOS
probe and intialisation. This will ultimately remove the grubby (but functional) hack that copies a real-mode function into low memory early in locore.s.
This commit is contained in:
Mike Smith
parent
765e40b956
commit
f9c9bbc054
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=36596
@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
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* $Id: locore.s,v 1.106 1998/04/04 13:24:11 phk Exp $
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* $Id: locore.s,v 1.107 1998/04/06 15:42:26 peter Exp $
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*
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* originally from: locore.s, by William F. Jolitz
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*
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@ -308,11 +308,13 @@ _pc98_system_parameter:
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stosb
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#if NAPM > 0
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#ifndef VM86
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/*
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* XXX it's not clear that APM can live in the current environonment.
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* Only pc-relative addressing works.
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*/
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call _apm_setup
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#endif
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#endif
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call create_pagetables
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
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* $Id: locore.s,v 1.106 1998/04/04 13:24:11 phk Exp $
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* $Id: locore.s,v 1.107 1998/04/06 15:42:26 peter Exp $
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*
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* originally from: locore.s, by William F. Jolitz
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*
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@ -308,11 +308,13 @@ _pc98_system_parameter:
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stosb
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#if NAPM > 0
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#ifndef VM86
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/*
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* XXX it's not clear that APM can live in the current environonment.
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* Only pc-relative addressing works.
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*/
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call _apm_setup
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#endif
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#endif
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call create_pagetables
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@ -15,10 +15,11 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.69 1998/02/09 06:08:06 eivind Exp $
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* $Id: apm.c,v 1.70 1998/03/30 09:47:57 phk Exp $
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*/
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#include "opt_devfs.h"
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#include "opt_vm86.h"
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#include <sys/param.h>
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#include <sys/conf.h>
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@ -38,6 +39,11 @@
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#include <sys/syslog.h>
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#include <i386/apm/apm_setup.h>
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#ifdef VM86
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#include <machine/psl.h>
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#include <machine/vm86.h>
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#endif
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static int apm_display __P((int newstate));
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static int apm_int __P((u_long *eax, u_long *ebx, u_long *ecx, u_long *edx));
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static void apm_resume __P((void));
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@ -49,7 +55,7 @@ struct apm_softc {
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int disabled, disengaged;
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u_int minorversion, majorversion;
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u_int cs32_base, cs16_base, ds_base;
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u_int cs_limit, ds_limit;
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u_int cs16_limit, cs32_limit, ds_limit;
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u_int cs_entry;
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u_int intversion;
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struct apmhook sc_suspend;
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@ -83,15 +89,15 @@ static struct cdevsw apm_cdevsw =
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/* setup APM GDT discriptors */
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static void
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setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code_limit, u_int data_limit)
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setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code32_limit, u_int code16_limit, u_int data_limit)
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{
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/* setup 32bit code segment */
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gdt_segs[GAPMCODE32_SEL].ssd_base = code32_base;
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gdt_segs[GAPMCODE32_SEL].ssd_limit = code_limit;
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gdt_segs[GAPMCODE32_SEL].ssd_limit = code32_limit;
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/* setup 16bit code segment */
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gdt_segs[GAPMCODE16_SEL].ssd_base = code16_base;
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gdt_segs[GAPMCODE16_SEL].ssd_limit = code_limit;
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gdt_segs[GAPMCODE16_SEL].ssd_limit = code16_limit;
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/* setup data segment */
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gdt_segs[GAPMDATA_SEL ].ssd_base = data_base;
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@ -613,17 +619,73 @@ struct isa_driver apmdriver = { apmprobe, apmattach, "apm" };
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* this process forces the CPU to turn to real mode or V86 mode.
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* Current version uses real mode, but in a future version, we want
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* to use V86 mode in APM initialization.
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*
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* XXX If VM86 is defined, we do.
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*/
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static int
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apmprobe(struct isa_device *dvp)
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{
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bzero(&apm_softc, sizeof(apm_softc));
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#ifdef VM86
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struct vm86frame vmf;
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int i;
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#endif
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if ( dvp->id_unit > 0 ) {
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printf("apm: Only one APM driver supported.\n");
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return 0;
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}
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#ifdef VM86
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bzero(&vmf, sizeof(struct vm86frame)); /* safety */
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vmf.vmf_ax = 0x5300;
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vmf.vmf_bx = 0;
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if (((i = vm86_intcall(0x15, &vmf)) == 0) &&
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!(vmf.vmf_eflags & PSL_C) &&
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(vmf.vmf_bx == 0x504d)) {
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apm_version = vmf.vmf_ax;
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apm_flags = vmf.vmf_cx;
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vmf.vmf_ax = 0x5303;
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vmf.vmf_bx = 0;
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if (((i = vm86_intcall(0x15, &vmf)) == 0) &&
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!(vmf.vmf_eflags & PSL_C)) {
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apm_cs32_base = vmf.vmf_ax;
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apm_cs_entry = vmf.vmf_ebx;
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apm_cs16_base = vmf.vmf_cx;
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apm_ds_base = vmf.vmf_dx;
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apm_cs32_limit = vmf.vmf_si;
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if (apm_version >= 0x0102)
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apm_cs16_limit = (vmf.esi.r_ex >> 16);
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apm_ds_limit = vmf.vmf_di;
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#ifdef APM_DEBUG
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printf("apm: BIOS probe/32-bit connect successful\n");
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#endif
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} else {
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/* XXX constant typo! */
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if (vmf.vmf_ah == APME_PROT32NOTDUPPORTED) {
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apm_version = APMINI_NOT32BIT;
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} else {
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apm_version = APMINI_CONNECTERR;
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}
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#ifdef APM_DEBUG
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printf("apm: BIOS 32-bit connect failed: error 0x%x carry %d ah 0x%x\n",
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i, (vmf.vmf_eflags & PSL_C) ? 1 : 0, vmf.vmf_ah);
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#endif
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}
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} else {
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apm_version = APMINI_CANTFIND;
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#ifdef APM_DEBUG
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printf("apm: BIOS probe failed: error 0x%x carry %d bx 0x%x\n",
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i, (vmf.vmf_eflags & PSL_C) ? 1 : 0, vmf.vmf_bx);
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#endif
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}
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#endif
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bzero(&apm_softc, sizeof(apm_softc));
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switch (apm_version) {
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case APMINI_CANTFIND:
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/* silent */
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@ -716,8 +778,11 @@ apmattach(struct isa_device *dvp)
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sc->cs16_base = (apm_cs16_base << 4) + APM_KERNBASE;
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sc->cs32_base = (apm_cs32_base << 4) + APM_KERNBASE;
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sc->ds_base = (apm_ds_base << 4) + APM_KERNBASE;
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sc->cs_limit = apm_cs_limit;
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sc->ds_limit = apm_ds_limit;
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sc->cs32_limit = apm_cs32_limit - 1;
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if (apm_cs16_limit == 0)
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apm_cs16_limit == apm_cs32_limit;
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sc->cs16_limit = apm_cs16_limit - 1;
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sc->ds_limit = apm_ds_limit - 1;
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sc->cs_entry = apm_cs_entry;
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/* Always call HLT in idle loop */
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@ -735,8 +800,8 @@ apmattach(struct isa_device *dvp)
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printf("apm: Code entry 0x%08x, Idling CPU %s, Management %s\n",
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sc->cs_entry, is_enabled(sc->slow_idle_cpu),
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is_enabled(!sc->disabled));
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printf("apm: CS_limit=0x%x, DS_limit=0x%x\n",
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sc->cs_limit, sc->ds_limit);
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printf("apm: CS32_limit=0x%x, CS16_limit=0x%x, DS_limit=0x%x\n",
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(u_short)sc->cs32_limit, (u_short)sc->cs16_limit, (u_short)sc->ds_limit);
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#endif /* APM_DEBUG */
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#if 0
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@ -747,7 +812,7 @@ apmattach(struct isa_device *dvp)
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/* setup GDT */
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setup_apm_gdt(sc->cs32_base, sc->cs16_base, sc->ds_base,
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sc->cs_limit, sc->ds_limit);
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sc->cs32_limit, sc->cs16_limit, sc->ds_limit);
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/* setup entry point 48bit pointer */
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apm_addr.segment = GSEL(GAPMCODE32_SEL, SEL_KPL);
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@ -10,7 +10,7 @@
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.h,v 1.7 1997/02/22 09:29:49 peter Exp $
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* $Id: apm_setup.h,v 1.8 1997/03/29 11:06:38 phk Exp $
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*/
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extern u_long apm_version;
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@ -18,7 +18,8 @@ extern u_long apm_cs_entry;
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extern u_short apm_cs32_base;
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extern u_short apm_cs16_base;
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extern u_short apm_ds_base;
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extern u_short apm_cs_limit;
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extern u_short apm_cs32_limit;
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extern u_short apm_cs16_limit;
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extern u_short apm_ds_limit;
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extern u_short apm_flags;
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extern u_short kernelbase;
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@ -11,7 +11,7 @@
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*
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* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm_setup.s,v 1.11 1997/03/29 11:06:40 phk Exp $
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* $Id: apm_setup.s,v 1.12 1997/11/04 18:12:45 nate Exp $
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*/
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#include "apm.h"
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@ -59,8 +59,12 @@ _apm_ds_base:
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.globl _apm_ds_base
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.word 0
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_apm_cs_limit:
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.globl _apm_cs_limit
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_apm_cs32_limit:
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.globl _apm_cs32_limit
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.word 0
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_apm_cs16_limit:
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.globl _apm_cs16_limit
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.word 0
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_apm_ds_limit:
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@ -169,7 +173,7 @@ _apm_setup:
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shrl $16, %ecx
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movw %cx, PADDR(_apm_cs32_base)
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movw %dx, PADDR(_apm_ds_base)
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movw %si, PADDR(_apm_cs_limit)
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movw %si, PADDR(_apm_cs32_limit)
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shrl $16, %esi
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movw %si, PADDR(_apm_ds_limit)
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movw %di, PADDR(_apm_flags)
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@ -15,10 +15,11 @@
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*
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* Sep, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
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*
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* $Id: apm.c,v 1.69 1998/02/09 06:08:06 eivind Exp $
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* $Id: apm.c,v 1.70 1998/03/30 09:47:57 phk Exp $
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*/
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#include "opt_devfs.h"
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#include "opt_vm86.h"
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#include <sys/param.h>
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#include <sys/conf.h>
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@ -38,6 +39,11 @@
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#include <sys/syslog.h>
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#include <i386/apm/apm_setup.h>
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#ifdef VM86
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#include <machine/psl.h>
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#include <machine/vm86.h>
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#endif
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static int apm_display __P((int newstate));
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static int apm_int __P((u_long *eax, u_long *ebx, u_long *ecx, u_long *edx));
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static void apm_resume __P((void));
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@ -49,7 +55,7 @@ struct apm_softc {
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int disabled, disengaged;
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u_int minorversion, majorversion;
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u_int cs32_base, cs16_base, ds_base;
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u_int cs_limit, ds_limit;
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u_int cs16_limit, cs32_limit, ds_limit;
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u_int cs_entry;
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u_int intversion;
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struct apmhook sc_suspend;
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@ -83,15 +89,15 @@ static struct cdevsw apm_cdevsw =
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/* setup APM GDT discriptors */
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static void
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setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code_limit, u_int data_limit)
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setup_apm_gdt(u_int code32_base, u_int code16_base, u_int data_base, u_int code32_limit, u_int code16_limit, u_int data_limit)
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{
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/* setup 32bit code segment */
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gdt_segs[GAPMCODE32_SEL].ssd_base = code32_base;
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gdt_segs[GAPMCODE32_SEL].ssd_limit = code_limit;
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gdt_segs[GAPMCODE32_SEL].ssd_limit = code32_limit;
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/* setup 16bit code segment */
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gdt_segs[GAPMCODE16_SEL].ssd_base = code16_base;
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gdt_segs[GAPMCODE16_SEL].ssd_limit = code_limit;
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gdt_segs[GAPMCODE16_SEL].ssd_limit = code16_limit;
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/* setup data segment */
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gdt_segs[GAPMDATA_SEL ].ssd_base = data_base;
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@ -613,17 +619,73 @@ struct isa_driver apmdriver = { apmprobe, apmattach, "apm" };
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* this process forces the CPU to turn to real mode or V86 mode.
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* Current version uses real mode, but in a future version, we want
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* to use V86 mode in APM initialization.
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*
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* XXX If VM86 is defined, we do.
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*/
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static int
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apmprobe(struct isa_device *dvp)
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{
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bzero(&apm_softc, sizeof(apm_softc));
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#ifdef VM86
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struct vm86frame vmf;
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int i;
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#endif
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if ( dvp->id_unit > 0 ) {
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printf("apm: Only one APM driver supported.\n");
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return 0;
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}
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#ifdef VM86
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bzero(&vmf, sizeof(struct vm86frame)); /* safety */
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vmf.vmf_ax = 0x5300;
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vmf.vmf_bx = 0;
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if (((i = vm86_intcall(0x15, &vmf)) == 0) &&
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!(vmf.vmf_eflags & PSL_C) &&
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(vmf.vmf_bx == 0x504d)) {
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apm_version = vmf.vmf_ax;
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apm_flags = vmf.vmf_cx;
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vmf.vmf_ax = 0x5303;
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vmf.vmf_bx = 0;
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if (((i = vm86_intcall(0x15, &vmf)) == 0) &&
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!(vmf.vmf_eflags & PSL_C)) {
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apm_cs32_base = vmf.vmf_ax;
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apm_cs_entry = vmf.vmf_ebx;
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apm_cs16_base = vmf.vmf_cx;
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apm_ds_base = vmf.vmf_dx;
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apm_cs32_limit = vmf.vmf_si;
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if (apm_version >= 0x0102)
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apm_cs16_limit = (vmf.esi.r_ex >> 16);
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apm_ds_limit = vmf.vmf_di;
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#ifdef APM_DEBUG
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printf("apm: BIOS probe/32-bit connect successful\n");
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#endif
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} else {
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/* XXX constant typo! */
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if (vmf.vmf_ah == APME_PROT32NOTDUPPORTED) {
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apm_version = APMINI_NOT32BIT;
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} else {
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apm_version = APMINI_CONNECTERR;
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}
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#ifdef APM_DEBUG
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printf("apm: BIOS 32-bit connect failed: error 0x%x carry %d ah 0x%x\n",
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i, (vmf.vmf_eflags & PSL_C) ? 1 : 0, vmf.vmf_ah);
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#endif
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}
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} else {
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apm_version = APMINI_CANTFIND;
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#ifdef APM_DEBUG
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printf("apm: BIOS probe failed: error 0x%x carry %d bx 0x%x\n",
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i, (vmf.vmf_eflags & PSL_C) ? 1 : 0, vmf.vmf_bx);
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#endif
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}
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#endif
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bzero(&apm_softc, sizeof(apm_softc));
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switch (apm_version) {
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case APMINI_CANTFIND:
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/* silent */
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@ -716,8 +778,11 @@ apmattach(struct isa_device *dvp)
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sc->cs16_base = (apm_cs16_base << 4) + APM_KERNBASE;
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sc->cs32_base = (apm_cs32_base << 4) + APM_KERNBASE;
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sc->ds_base = (apm_ds_base << 4) + APM_KERNBASE;
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sc->cs_limit = apm_cs_limit;
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sc->ds_limit = apm_ds_limit;
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sc->cs32_limit = apm_cs32_limit - 1;
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if (apm_cs16_limit == 0)
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apm_cs16_limit == apm_cs32_limit;
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sc->cs16_limit = apm_cs16_limit - 1;
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sc->ds_limit = apm_ds_limit - 1;
|
||||
sc->cs_entry = apm_cs_entry;
|
||||
|
||||
/* Always call HLT in idle loop */
|
||||
@ -735,8 +800,8 @@ apmattach(struct isa_device *dvp)
|
||||
printf("apm: Code entry 0x%08x, Idling CPU %s, Management %s\n",
|
||||
sc->cs_entry, is_enabled(sc->slow_idle_cpu),
|
||||
is_enabled(!sc->disabled));
|
||||
printf("apm: CS_limit=0x%x, DS_limit=0x%x\n",
|
||||
sc->cs_limit, sc->ds_limit);
|
||||
printf("apm: CS32_limit=0x%x, CS16_limit=0x%x, DS_limit=0x%x\n",
|
||||
(u_short)sc->cs32_limit, (u_short)sc->cs16_limit, (u_short)sc->ds_limit);
|
||||
#endif /* APM_DEBUG */
|
||||
|
||||
#if 0
|
||||
@ -747,7 +812,7 @@ apmattach(struct isa_device *dvp)
|
||||
|
||||
/* setup GDT */
|
||||
setup_apm_gdt(sc->cs32_base, sc->cs16_base, sc->ds_base,
|
||||
sc->cs_limit, sc->ds_limit);
|
||||
sc->cs32_limit, sc->cs16_limit, sc->ds_limit);
|
||||
|
||||
/* setup entry point 48bit pointer */
|
||||
apm_addr.segment = GSEL(GAPMCODE32_SEL, SEL_KPL);
|
||||
|
||||
@ -10,7 +10,7 @@
|
||||
*
|
||||
* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
|
||||
*
|
||||
* $Id: apm_setup.h,v 1.7 1997/02/22 09:29:49 peter Exp $
|
||||
* $Id: apm_setup.h,v 1.8 1997/03/29 11:06:38 phk Exp $
|
||||
*/
|
||||
|
||||
extern u_long apm_version;
|
||||
@ -18,7 +18,8 @@ extern u_long apm_cs_entry;
|
||||
extern u_short apm_cs32_base;
|
||||
extern u_short apm_cs16_base;
|
||||
extern u_short apm_ds_base;
|
||||
extern u_short apm_cs_limit;
|
||||
extern u_short apm_cs32_limit;
|
||||
extern u_short apm_cs16_limit;
|
||||
extern u_short apm_ds_limit;
|
||||
extern u_short apm_flags;
|
||||
extern u_short kernelbase;
|
||||
|
||||
@ -11,7 +11,7 @@
|
||||
*
|
||||
* Sep., 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
|
||||
*
|
||||
* $Id: apm_setup.s,v 1.11 1997/03/29 11:06:40 phk Exp $
|
||||
* $Id: apm_setup.s,v 1.12 1997/11/04 18:12:45 nate Exp $
|
||||
*/
|
||||
|
||||
#include "apm.h"
|
||||
@ -59,8 +59,12 @@ _apm_ds_base:
|
||||
.globl _apm_ds_base
|
||||
.word 0
|
||||
|
||||
_apm_cs_limit:
|
||||
.globl _apm_cs_limit
|
||||
_apm_cs32_limit:
|
||||
.globl _apm_cs32_limit
|
||||
.word 0
|
||||
|
||||
_apm_cs16_limit:
|
||||
.globl _apm_cs16_limit
|
||||
.word 0
|
||||
|
||||
_apm_ds_limit:
|
||||
@ -169,7 +173,7 @@ _apm_setup:
|
||||
shrl $16, %ecx
|
||||
movw %cx, PADDR(_apm_cs32_base)
|
||||
movw %dx, PADDR(_apm_ds_base)
|
||||
movw %si, PADDR(_apm_cs_limit)
|
||||
movw %si, PADDR(_apm_cs32_limit)
|
||||
shrl $16, %esi
|
||||
movw %si, PADDR(_apm_ds_limit)
|
||||
movw %di, PADDR(_apm_flags)
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91
|
||||
* $Id: locore.s,v 1.106 1998/04/04 13:24:11 phk Exp $
|
||||
* $Id: locore.s,v 1.107 1998/04/06 15:42:26 peter Exp $
|
||||
*
|
||||
* originally from: locore.s, by William F. Jolitz
|
||||
*
|
||||
@ -308,11 +308,13 @@ _pc98_system_parameter:
|
||||
stosb
|
||||
|
||||
#if NAPM > 0
|
||||
#ifndef VM86
|
||||
/*
|
||||
* XXX it's not clear that APM can live in the current environonment.
|
||||
* Only pc-relative addressing works.
|
||||
*/
|
||||
call _apm_setup
|
||||
#endif
|
||||
#endif
|
||||
|
||||
call create_pagetables
|
||||
|
||||
Loading…
Reference in New Issue
Block a user