diff options
Diffstat (limited to 'source/3rd-party/SDL2/src/power/haiku/SDL_syspower.c')
| -rw-r--r-- | source/3rd-party/SDL2/src/power/haiku/SDL_syspower.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/power/haiku/SDL_syspower.c b/source/3rd-party/SDL2/src/power/haiku/SDL_syspower.c new file mode 100644 index 0000000..47961bb --- /dev/null +++ b/source/3rd-party/SDL2/src/power/haiku/SDL_syspower.c @@ -0,0 +1,128 @@ +/* + Simple DirectMedia Layer + Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org> + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. +*/ +#include "../../SDL_internal.h" + +/* uses BeOS euc.jp apm driver. */ +/* !!! FIXME: does this thing even work on Haiku? */ + +#ifndef SDL_POWER_DISABLED +#if SDL_POWER_HAIKU + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <ctype.h> +#include <drivers/Drivers.h> + +/* These values are from apm.h ... */ +#define APM_DEVICE_PATH "/dev/misc/apm" +#define APM_FUNC_OFFSET 0x5300 +#define APM_FUNC_GET_POWER_STATUS 10 +#define APM_DEVICE_ALL 1 +#define APM_BIOS_CALL (B_DEVICE_OP_CODES_END + 3) + +#include "SDL_power.h" + +SDL_bool +SDL_GetPowerInfo_Haiku(SDL_PowerState * state, int *seconds, int *percent) +{ + const int fd = open("/dev/misc/apm", O_RDONLY); + SDL_bool need_details = SDL_FALSE; + uint16 regs[6]; + uint8 ac_status; + uint8 battery_status; + uint8 battery_flags; + uint8 battery_life; + uint32 battery_time; + int rc; + + if (fd == -1) { + return SDL_FALSE; /* maybe some other method will work? */ + } + + memset(regs, '\0', sizeof(regs)); + regs[0] = APM_FUNC_OFFSET + APM_FUNC_GET_POWER_STATUS; + regs[1] = APM_DEVICE_ALL; + rc = ioctl(fd, APM_BIOS_CALL, regs); + close(fd); + + if (rc < 0) { + return SDL_FALSE; + } + + ac_status = regs[1] >> 8; + battery_status = regs[1] & 0xFF; + battery_flags = regs[2] >> 8; + battery_life = regs[2] & 0xFF; + battery_time = (uint32) regs[3]; + + /* in theory, _something_ should be set in battery_flags, right? */ + if (battery_flags == 0x00) { /* older APM BIOS? Less fields. */ + battery_time = 0xFFFF; + if (battery_status == 0xFF) { + battery_flags = 0xFF; + } else { + battery_flags = (1 << battery_status); + } + } + + if ((battery_time != 0xFFFF) && (battery_time & (1 << 15))) { + /* time is in minutes, not seconds */ + battery_time = (battery_time & 0x7FFF) * 60; + } + + if (battery_flags == 0xFF) { /* unknown state */ + *state = SDL_POWERSTATE_UNKNOWN; + } else if (battery_flags & (1 << 7)) { /* no battery */ + *state = SDL_POWERSTATE_NO_BATTERY; + } else if (battery_flags & (1 << 3)) { /* charging */ + *state = SDL_POWERSTATE_CHARGING; + need_details = SDL_TRUE; + } else if (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; + } + + *percent = -1; + *seconds = -1; + if (need_details) { + const int pct = (int) battery_life; + const int secs = (int) battery_time; + + if (pct != 255) { /* 255 == unknown */ + *percent = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */ + } + if (secs != 0xFFFF) { /* 0xFFFF == unknown */ + *seconds = secs; + } + } + + return SDL_TRUE; /* the definitive answer if APM driver replied. */ +} + +#endif /* SDL_POWER_HAIKU */ +#endif /* SDL_POWER_DISABLED */ + +/* vi: set ts=4 sw=4 expandtab: */ |