Mercurial > sdl-ios-xcode
view src/power/os2/SDL_syspower.c @ 3188:102b7880543a
Whoops, didn't mean to commit unfinished patch
author | Sam Lantinga <slouken@libsdl.org> |
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date | Wed, 10 Jun 2009 13:46:54 +0000 |
parents | 51750b7a966f |
children |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" /* !!! FIXME: * Please note that this code has not been tested (or even compiled!). It * should, in theory, run on any version of OS/2, and work with any system * that has APM.SYS loaded. I don't know if ACPI.SYS works. */ #ifndef SDL_POWER_DISABLED #ifdef SDL_POWER_OS2 #define INCL_DOSFILEMGR #define INCL_DOSDEVICES #define INCL_DOSDEVIOCTL #define INCL_DOSERRORS #include <os2.h> #include "SDL_power.h" typedef struct { USHORT len; USHORT flags; UCHAR ac_status; UCHAR battery_status; UCHAR battery_life; UCHAR battery_time_form; USHORT battery_time; UCHAR battery_flags; } PowerStatus; extern int CompilerAssertPowerStatus[(sizeof(PowerStatus) == 10) ? 1 : -1]; SDL_bool SDL_GetPowerInfo_OS2(SDL_PowerState * state, int *seconds, int *percent) { PowerStatus status; HFILE hfile = 0; ULONG action = 0; APIRET rc = 0; *state = SDL_POWERSTATE_UNKNOWN; *percent = -1; *seconds = -1; /* open the power management device */ rc = DosOpen("APM$", &hfile, &action, 0, FILE_NORMAL, FILE_OPEN, OPEN_ACCESS_READONLY | OPEN_SHARE_DENYNONE, 0); if (rc == NO_ERROR) { USHORT iorc = 0; ULONG iorclen = sizeof(iorc); ULONG statuslen = sizeof(status); SDL_memset(&status, '\0', sizeof(status)); status.len = sizeof(status); rc = DosDevIOCtl(hfile, IOCTL_POWER, POWER_GETPOWERSTATUS, &status, statuslen, &statuslen, &iorc, iorclen, &iorclen); DosClose(hfile); /* (status.flags & 0x1) == power subsystem enabled. */ if ((rc == NO_ERROR) && (status.flags & 0x1)) { if (statuslen == 7) { /* older OS/2 APM driver? Less fields. */ status.battery_time_form = 0xFF; status.battery_time = 0; if (status.battery_status == 0xFF) { status.battery_flags = 0xFF; } else { status.battery_flags = (1 << status.battery_status); } } if (status.battery_flags == 0xFF) { /* unknown state */ *state = SDL_POWERSTATE_UNKNOWN; } else if (status.battery_flags & (1 << 7)) { /* no battery */ *state = SDL_POWERSTATE_NO_BATTERY; } else if (status.battery_flags & (1 << 3)) { /* charging */ *state = SDL_POWERSTATE_CHARGING; need_details = SDL_TRUE; } else if (status.ac_status == 1) { *state = SDL_POWERSTATE_CHARGED; /* on AC, not charging. */ need_details = SDL_TRUE; } else { *state = SDL_POWERSTATE_ON_BATTERY; /* not on AC. */ need_details = SDL_TRUE; } if (need_details) { const int pct = (int) status.battery_life; const int secs = (int) status.battery_time; if (pct != 0xFF) { /* 255 == unknown */ *percent = (pct > 100) ? 100 : pct; } if (status.battery_time_form == 0xFF) { /* unknown */ *seconds = -1; } else if (status.battery_time_form == 1) { /* minutes */ *seconds = secs * 60; } else { *seconds = secs; } } } } return SDL_TRUE; /* always the definitive answer on OS/2. */ } #endif /* SDL_POWER_OS2 */ #endif /* SDL_POWER_DISABLED */ /* vi: set ts=4 sw=4 expandtab: */