Expand the APMIO_GETINFO ioctl to return the estimated remaining
battery time. For backward compatibility with old binaries, I assigned a new ioctl number for this call, and retained the old one as APMIO_GETINFO_OLD. I also added eight words of padding and a version field, so that future enhancements won't require jumping through this hoop again.
This commit is contained in:
John Polstra
parent
adbec73e00
commit
56fac9328e
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=31126
@ -15,7 +15,7 @@
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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.c,v 1.63 1997/11/04 17:37:52 nate Exp $
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* $Id: apm.c,v 1.64 1997/11/10 14:38:08 nate Exp $
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*/
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#include <sys/param.h>
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@ -37,7 +37,7 @@
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#include <i386/apm/apm_setup.h>
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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));
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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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/* static data */
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@ -109,8 +109,8 @@ struct addr48 {
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static int apm_errno;
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int
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apm_int(u_long *eax, u_long *ebx, u_long *ecx)
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static int
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apm_int(u_long *eax, u_long *ebx, u_long *ecx, u_long *edx)
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{
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struct apm_bios_arg apa;
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int cf;
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@ -118,10 +118,12 @@ apm_int(u_long *eax, u_long *ebx, u_long *ecx)
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apa.eax = *eax;
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apa.ebx = *ebx;
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apa.ecx = *ecx;
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apa.edx = *edx;
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cf = apm_bios_call(&apa);
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*eax = apa.eax;
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*ebx = apa.ebx;
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*ecx = apa.ecx;
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*edx = apa.edx;
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apm_errno = ((*eax) >> 8) & 0xff;
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return cf;
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}
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@ -133,7 +135,7 @@ apm_enable_disable_pm(int enable)
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{
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struct apm_softc *sc = &apm_softc;
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_ENABLEDISABLEPM;
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@ -142,19 +144,19 @@ apm_enable_disable_pm(int enable)
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else
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ebx = 0xffff; /* APM version 1.0 only */
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ecx = enable;
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return apm_int(&eax, &ebx, &ecx);
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return apm_int(&eax, &ebx, &ecx, &edx);
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}
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static void
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apm_driver_version(int version)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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/* First try APM 1.2 */
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eax = (APM_BIOS << 8) | APM_DRVVERSION;
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ebx = 0x0;
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ecx = version;
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if(!apm_int(&eax, &ebx, &ecx))
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if(!apm_int(&eax, &ebx, &ecx, &edx))
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apm_version = eax & 0xffff;
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}
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@ -162,25 +164,25 @@ apm_driver_version(int version)
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static int
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apm_engage_disengage_pm(int engage)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_ENGAGEDISENGAGEPM;
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ebx = PMDV_ALLDEV;
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ecx = engage;
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return(apm_int(&eax, &ebx, &ecx));
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return(apm_int(&eax, &ebx, &ecx, &edx));
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}
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/* get PM event */
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static u_int
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apm_getevent(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_GETPMEVENT;
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ebx = 0;
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ecx = 0;
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if (apm_int(&eax, &ebx, &ecx))
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if (apm_int(&eax, &ebx, &ecx, &edx))
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return PMEV_NOEVENT;
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return ebx & 0xffff;
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@ -190,13 +192,13 @@ apm_getevent(void)
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static int
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apm_suspend_system(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_SUSPEND;
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if (apm_int(&eax, &ebx, &ecx)) {
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if (apm_int(&eax, &ebx, &ecx, &edx)) {
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printf("Entire system suspend failure: errcode = %ld\n",
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0xff & (eax >> 8));
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return 1;
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@ -213,12 +215,12 @@ apm_suspend_system(void)
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static int
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apm_display(int newstate)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_DISP0;
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ecx = newstate ? PMST_APMENABLED:PMST_SUSPEND;
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if (apm_int(&eax, &ebx, &ecx)) {
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if (apm_int(&eax, &ebx, &ecx, &edx)) {
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printf("Display off failure: errcode = %ld\n",
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0xff & (eax >> 8));
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return 1;
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@ -232,14 +234,14 @@ apm_display(int newstate)
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void
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apm_power_off(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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if (!apm_softc.active)
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return;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_OFF;
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apm_int(&eax, &ebx, &ecx);
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apm_int(&eax, &ebx, &ecx, &edx);
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}
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/* APM Battery low handler */
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@ -426,21 +428,30 @@ static int
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apm_get_info(apm_info_t aip)
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{
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struct apm_softc *sc = &apm_softc;
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_GETPWSTATUS;
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ebx = PMDV_ALLDEV;
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ecx = 0;
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if (apm_int(&eax, &ebx, &ecx))
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if (apm_int(&eax, &ebx, &ecx, &edx))
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return 1;
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aip->ai_acline = (ebx >> 8) & 0xff;
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aip->ai_batt_stat = ebx & 0xff;
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aip->ai_batt_life = ecx & 0xff;
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aip->ai_major = (u_int)sc->majorversion;
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aip->ai_minor = (u_int)sc->minorversion;
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aip->ai_status = (u_int)sc->active;
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aip->ai_infoversion = 0;
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aip->ai_acline = (ebx >> 8) & 0xff;
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aip->ai_batt_stat = ebx & 0xff;
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aip->ai_batt_life = ecx & 0xff;
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aip->ai_major = (u_int)sc->majorversion;
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aip->ai_minor = (u_int)sc->minorversion;
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aip->ai_status = (u_int)sc->active;
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edx &= 0xffff;
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if (edx == 0xffff) /* Time is unknown */
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aip->ai_batt_time = -1;
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else if (edx & 0x8000) /* Time is in minutes */
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aip->ai_batt_time = (edx & 0x7fff) * 60;
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else /* Time is in seconds */
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aip->ai_batt_time = edx;
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bzero(aip->ai_spare, sizeof aip->ai_spare);
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return 0;
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}
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@ -453,11 +464,11 @@ apm_cpu_idle(void)
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struct apm_softc *sc = &apm_softc;
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if (sc->active) {
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS <<8) | APM_CPUIDLE;
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ecx = ebx = 0;
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apm_int(&eax, &ebx, &ecx);
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apm_int(&eax, &ebx, &ecx, &edx);
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}
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/*
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* Some APM implementation halts CPU in BIOS, whenever
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@ -485,11 +496,11 @@ apm_cpu_busy(void)
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* necessary.
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*/
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if (sc->slow_idle_cpu && sc->active) {
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS <<8) | APM_CPUBUSY;
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ecx = ebx = 0;
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apm_int(&eax, &ebx, &ecx);
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apm_int(&eax, &ebx, &ecx, &edx);
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}
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}
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@ -830,6 +841,22 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
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else
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error = EINVAL;
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break;
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case APMIO_GETINFO_OLD:
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{
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struct apm_info info;
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apm_info_old_t aiop;
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if (apm_get_info(&info))
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error = ENXIO;
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aiop = (apm_info_old_t)addr;
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aiop->ai_major = info.ai_major;
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aiop->ai_minor = info.ai_minor;
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aiop->ai_acline = info.ai_acline;
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aiop->ai_batt_stat = info.ai_batt_stat;
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aiop->ai_batt_life = info.ai_batt_life;
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aiop->ai_status = info.ai_status;
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}
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break;
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case APMIO_GETINFO:
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if (apm_get_info((apm_info_t)addr))
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error = ENXIO;
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@ -15,7 +15,7 @@
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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.c,v 1.63 1997/11/04 17:37:52 nate Exp $
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* $Id: apm.c,v 1.64 1997/11/10 14:38:08 nate Exp $
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*/
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#include <sys/param.h>
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@ -37,7 +37,7 @@
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#include <i386/apm/apm_setup.h>
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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));
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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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/* static data */
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@ -109,8 +109,8 @@ struct addr48 {
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static int apm_errno;
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int
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apm_int(u_long *eax, u_long *ebx, u_long *ecx)
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static int
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apm_int(u_long *eax, u_long *ebx, u_long *ecx, u_long *edx)
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{
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struct apm_bios_arg apa;
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int cf;
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@ -118,10 +118,12 @@ apm_int(u_long *eax, u_long *ebx, u_long *ecx)
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apa.eax = *eax;
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apa.ebx = *ebx;
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apa.ecx = *ecx;
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apa.edx = *edx;
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cf = apm_bios_call(&apa);
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*eax = apa.eax;
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*ebx = apa.ebx;
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*ecx = apa.ecx;
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*edx = apa.edx;
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apm_errno = ((*eax) >> 8) & 0xff;
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return cf;
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}
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@ -133,7 +135,7 @@ apm_enable_disable_pm(int enable)
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{
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struct apm_softc *sc = &apm_softc;
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_ENABLEDISABLEPM;
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@ -142,19 +144,19 @@ apm_enable_disable_pm(int enable)
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else
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ebx = 0xffff; /* APM version 1.0 only */
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ecx = enable;
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return apm_int(&eax, &ebx, &ecx);
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return apm_int(&eax, &ebx, &ecx, &edx);
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}
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static void
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apm_driver_version(int version)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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/* First try APM 1.2 */
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eax = (APM_BIOS << 8) | APM_DRVVERSION;
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ebx = 0x0;
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ecx = version;
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if(!apm_int(&eax, &ebx, &ecx))
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if(!apm_int(&eax, &ebx, &ecx, &edx))
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apm_version = eax & 0xffff;
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}
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@ -162,25 +164,25 @@ apm_driver_version(int version)
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static int
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apm_engage_disengage_pm(int engage)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_ENGAGEDISENGAGEPM;
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ebx = PMDV_ALLDEV;
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ecx = engage;
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return(apm_int(&eax, &ebx, &ecx));
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return(apm_int(&eax, &ebx, &ecx, &edx));
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}
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/* get PM event */
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static u_int
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apm_getevent(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_GETPMEVENT;
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ebx = 0;
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ecx = 0;
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if (apm_int(&eax, &ebx, &ecx))
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if (apm_int(&eax, &ebx, &ecx, &edx))
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return PMEV_NOEVENT;
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return ebx & 0xffff;
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@ -190,13 +192,13 @@ apm_getevent(void)
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static int
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apm_suspend_system(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_SUSPEND;
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if (apm_int(&eax, &ebx, &ecx)) {
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if (apm_int(&eax, &ebx, &ecx, &edx)) {
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printf("Entire system suspend failure: errcode = %ld\n",
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0xff & (eax >> 8));
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return 1;
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@ -213,12 +215,12 @@ apm_suspend_system(void)
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static int
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apm_display(int newstate)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_DISP0;
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ecx = newstate ? PMST_APMENABLED:PMST_SUSPEND;
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if (apm_int(&eax, &ebx, &ecx)) {
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if (apm_int(&eax, &ebx, &ecx, &edx)) {
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printf("Display off failure: errcode = %ld\n",
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0xff & (eax >> 8));
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return 1;
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@ -232,14 +234,14 @@ apm_display(int newstate)
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void
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apm_power_off(void)
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{
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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if (!apm_softc.active)
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return;
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eax = (APM_BIOS << 8) | APM_SETPWSTATE;
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ebx = PMDV_ALLDEV;
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ecx = PMST_OFF;
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apm_int(&eax, &ebx, &ecx);
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apm_int(&eax, &ebx, &ecx, &edx);
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}
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/* APM Battery low handler */
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@ -426,21 +428,30 @@ static int
|
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apm_get_info(apm_info_t aip)
|
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{
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struct apm_softc *sc = &apm_softc;
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u_long eax, ebx, ecx;
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u_long eax, ebx, ecx, edx;
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eax = (APM_BIOS << 8) | APM_GETPWSTATUS;
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ebx = PMDV_ALLDEV;
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ecx = 0;
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if (apm_int(&eax, &ebx, &ecx))
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if (apm_int(&eax, &ebx, &ecx, &edx))
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return 1;
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aip->ai_acline = (ebx >> 8) & 0xff;
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aip->ai_batt_stat = ebx & 0xff;
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aip->ai_batt_life = ecx & 0xff;
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aip->ai_major = (u_int)sc->majorversion;
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aip->ai_minor = (u_int)sc->minorversion;
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aip->ai_status = (u_int)sc->active;
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aip->ai_infoversion = 0;
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aip->ai_acline = (ebx >> 8) & 0xff;
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aip->ai_batt_stat = ebx & 0xff;
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aip->ai_batt_life = ecx & 0xff;
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aip->ai_major = (u_int)sc->majorversion;
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aip->ai_minor = (u_int)sc->minorversion;
|
||||
aip->ai_status = (u_int)sc->active;
|
||||
edx &= 0xffff;
|
||||
if (edx == 0xffff) /* Time is unknown */
|
||||
aip->ai_batt_time = -1;
|
||||
else if (edx & 0x8000) /* Time is in minutes */
|
||||
aip->ai_batt_time = (edx & 0x7fff) * 60;
|
||||
else /* Time is in seconds */
|
||||
aip->ai_batt_time = edx;
|
||||
bzero(aip->ai_spare, sizeof aip->ai_spare);
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -453,11 +464,11 @@ apm_cpu_idle(void)
|
||||
struct apm_softc *sc = &apm_softc;
|
||||
|
||||
if (sc->active) {
|
||||
u_long eax, ebx, ecx;
|
||||
u_long eax, ebx, ecx, edx;
|
||||
|
||||
eax = (APM_BIOS <<8) | APM_CPUIDLE;
|
||||
ecx = ebx = 0;
|
||||
apm_int(&eax, &ebx, &ecx);
|
||||
apm_int(&eax, &ebx, &ecx, &edx);
|
||||
}
|
||||
/*
|
||||
* Some APM implementation halts CPU in BIOS, whenever
|
||||
@ -485,11 +496,11 @@ apm_cpu_busy(void)
|
||||
* necessary.
|
||||
*/
|
||||
if (sc->slow_idle_cpu && sc->active) {
|
||||
u_long eax, ebx, ecx;
|
||||
u_long eax, ebx, ecx, edx;
|
||||
|
||||
eax = (APM_BIOS <<8) | APM_CPUBUSY;
|
||||
ecx = ebx = 0;
|
||||
apm_int(&eax, &ebx, &ecx);
|
||||
apm_int(&eax, &ebx, &ecx, &edx);
|
||||
}
|
||||
}
|
||||
|
||||
@ -830,6 +841,22 @@ apmioctl(dev_t dev, int cmd, caddr_t addr, int flag, struct proc *p)
|
||||
else
|
||||
error = EINVAL;
|
||||
break;
|
||||
case APMIO_GETINFO_OLD:
|
||||
{
|
||||
struct apm_info info;
|
||||
apm_info_old_t aiop;
|
||||
|
||||
if (apm_get_info(&info))
|
||||
error = ENXIO;
|
||||
aiop = (apm_info_old_t)addr;
|
||||
aiop->ai_major = info.ai_major;
|
||||
aiop->ai_minor = info.ai_minor;
|
||||
aiop->ai_acline = info.ai_acline;
|
||||
aiop->ai_batt_stat = info.ai_batt_stat;
|
||||
aiop->ai_batt_life = info.ai_batt_life;
|
||||
aiop->ai_status = info.ai_status;
|
||||
}
|
||||
break;
|
||||
case APMIO_GETINFO:
|
||||
if (apm_get_info((apm_info_t)addr))
|
||||
error = ENXIO;
|
||||
|
||||
@ -12,7 +12,7 @@
|
||||
*
|
||||
* Aug, 1994 Implemented on FreeBSD 1.1.5.1R (Toshiba AVS001WD)
|
||||
*
|
||||
* $Id: apm_bios.h,v 1.17 1997/03/29 11:07:12 phk Exp $
|
||||
* $Id: apm_bios.h,v 1.18 1997/06/15 02:02:53 wollman Exp $
|
||||
*/
|
||||
|
||||
#ifndef _MACHINE_APM_BIOS_H_
|
||||
@ -187,13 +187,35 @@ void apm_power_off(void);
|
||||
|
||||
#if !defined(ASSEMBLER) && !defined(INITIALIZER)
|
||||
|
||||
typedef struct apm_info {
|
||||
/*
|
||||
* Old apm_info structure, returned by the APMIO_GETINFO_OLD ioctl. This
|
||||
* is for backward compatibility with old executables.
|
||||
*/
|
||||
typedef struct apm_info_old {
|
||||
u_int ai_major; /* APM major version */
|
||||
u_int ai_minor; /* APM minor version */
|
||||
u_int ai_acline; /* AC line status */
|
||||
u_int ai_batt_stat; /* Battery status */
|
||||
u_int ai_batt_life; /* Remaining battery life */
|
||||
u_int ai_status; /* Status of APM support (enabled/disabled) */
|
||||
} *apm_info_old_t;
|
||||
|
||||
/*
|
||||
* Structure returned by the APMIO_GETINFO ioctl.
|
||||
*
|
||||
* In the comments below, the parenthesized numbers indicate the minimum
|
||||
* value of ai_infoversion for which each field is valid.
|
||||
*/
|
||||
typedef struct apm_info {
|
||||
u_int ai_infoversion; /* Indicates which fields are valid */
|
||||
u_int ai_major; /* APM major version (0) */
|
||||
u_int ai_minor; /* APM minor version (0) */
|
||||
u_int ai_acline; /* AC line status (0) */
|
||||
u_int ai_batt_stat; /* Battery status (0) */
|
||||
u_int ai_batt_life; /* Remaining battery life in percent (0) */
|
||||
int ai_batt_time; /* Remaining battery time in seconds (0) */
|
||||
u_int ai_status; /* True if enabled (0) */
|
||||
u_int ai_spare[8]; /* For future expansion */
|
||||
} *apm_info_t;
|
||||
|
||||
struct apm_bios_arg {
|
||||
@ -206,13 +228,14 @@ struct apm_bios_arg {
|
||||
};
|
||||
|
||||
#define APMIO_SUSPEND _IO('P', 1)
|
||||
#define APMIO_GETINFO _IOR('P', 2, struct apm_info)
|
||||
#define APMIO_GETINFO_OLD _IOR('P', 2, struct apm_info_old)
|
||||
#define APMIO_ENABLE _IO('P', 5)
|
||||
#define APMIO_DISABLE _IO('P', 6)
|
||||
#define APMIO_HALTCPU _IO('P', 7)
|
||||
#define APMIO_NOTHALTCPU _IO('P', 8)
|
||||
#define APMIO_DISPLAY _IOW('P', 9, int)
|
||||
#define APMIO_BIOS _IOWR('P', 10, struct apm_bios_arg)
|
||||
#define APMIO_GETINFO _IOR('P', 11, struct apm_info)
|
||||
|
||||
#endif /* !ASSEMBLER && !INITIALIZER */
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user