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Diffstat (limited to '3rdparty/SDL2/src/power/linux/SDL_syspower.c')
-rw-r--r--3rdparty/SDL2/src/power/linux/SDL_syspower.c519
1 files changed, 0 insertions, 519 deletions
diff --git a/3rdparty/SDL2/src/power/linux/SDL_syspower.c b/3rdparty/SDL2/src/power/linux/SDL_syspower.c
deleted file mode 100644
index 793e2666952..00000000000
--- a/3rdparty/SDL2/src/power/linux/SDL_syspower.c
+++ /dev/null
@@ -1,519 +0,0 @@
-/*
- Simple DirectMedia Layer
- Copyright (C) 1997-2016 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"
-
-#ifndef SDL_POWER_DISABLED
-#if SDL_POWER_LINUX
-
-#include <stdio.h>
-#include <unistd.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <dirent.h>
-#include <fcntl.h>
-
-#include "SDL_power.h"
-
-static const char *proc_apm_path = "/proc/apm";
-static const char *proc_acpi_battery_path = "/proc/acpi/battery";
-static const char *proc_acpi_ac_adapter_path = "/proc/acpi/ac_adapter";
-static const char *sys_class_power_supply_path = "/sys/class/power_supply";
-
-static int
-open_power_file(const char *base, const char *node, const char *key)
-{
- const size_t pathlen = strlen(base) + strlen(node) + strlen(key) + 3;
- char *path = (char *) alloca(pathlen);
- if (path == NULL) {
- return -1; /* oh well. */
- }
-
- snprintf(path, pathlen, "%s/%s/%s", base, node, key);
- return open(path, O_RDONLY);
-}
-
-
-static SDL_bool
-read_power_file(const char *base, const char *node, const char *key,
- char *buf, size_t buflen)
-{
- ssize_t br = 0;
- const int fd = open_power_file(base, node, key);
- if (fd == -1) {
- return SDL_FALSE;
- }
- br = read(fd, buf, buflen-1);
- close(fd);
- if (br < 0) {
- return SDL_FALSE;
- }
- buf[br] = '\0'; /* null-terminate the string. */
- return SDL_TRUE;
-}
-
-
-static SDL_bool
-make_proc_acpi_key_val(char **_ptr, char **_key, char **_val)
-{
- char *ptr = *_ptr;
-
- while (*ptr == ' ') {
- ptr++; /* skip whitespace. */
- }
-
- if (*ptr == '\0') {
- return SDL_FALSE; /* EOF. */
- }
-
- *_key = ptr;
-
- while ((*ptr != ':') && (*ptr != '\0')) {
- ptr++;
- }
-
- if (*ptr == '\0') {
- return SDL_FALSE; /* (unexpected) EOF. */
- }
-
- *(ptr++) = '\0'; /* terminate the key. */
-
- while ((*ptr == ' ') && (*ptr != '\0')) {
- ptr++; /* skip whitespace. */
- }
-
- if (*ptr == '\0') {
- return SDL_FALSE; /* (unexpected) EOF. */
- }
-
- *_val = ptr;
-
- while ((*ptr != '\n') && (*ptr != '\0')) {
- ptr++;
- }
-
- if (*ptr != '\0') {
- *(ptr++) = '\0'; /* terminate the value. */
- }
-
- *_ptr = ptr; /* store for next time. */
- return SDL_TRUE;
-}
-
-static void
-check_proc_acpi_battery(const char * node, SDL_bool * have_battery,
- SDL_bool * charging, int *seconds, int *percent)
-{
- const char *base = proc_acpi_battery_path;
- char info[1024];
- char state[1024];
- char *ptr = NULL;
- char *key = NULL;
- char *val = NULL;
- SDL_bool charge = SDL_FALSE;
- SDL_bool choose = SDL_FALSE;
- int maximum = -1;
- int remaining = -1;
- int secs = -1;
- int pct = -1;
-
- if (!read_power_file(base, node, "state", state, sizeof (state))) {
- return;
- } else if (!read_power_file(base, node, "info", info, sizeof (info))) {
- return;
- }
-
- ptr = &state[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- if (strcmp(key, "present") == 0) {
- if (strcmp(val, "yes") == 0) {
- *have_battery = SDL_TRUE;
- }
- } else if (strcmp(key, "charging state") == 0) {
- /* !!! FIXME: what exactly _does_ charging/discharging mean? */
- if (strcmp(val, "charging/discharging") == 0) {
- charge = SDL_TRUE;
- } else if (strcmp(val, "charging") == 0) {
- charge = SDL_TRUE;
- }
- } else if (strcmp(key, "remaining capacity") == 0) {
- char *endptr = NULL;
- const int cvt = (int) strtol(val, &endptr, 10);
- if (*endptr == ' ') {
- remaining = cvt;
- }
- }
- }
-
- ptr = &info[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- if (strcmp(key, "design capacity") == 0) {
- char *endptr = NULL;
- const int cvt = (int) strtol(val, &endptr, 10);
- if (*endptr == ' ') {
- maximum = cvt;
- }
- }
- }
-
- if ((maximum >= 0) && (remaining >= 0)) {
- pct = (int) ((((float) remaining) / ((float) maximum)) * 100.0f);
- if (pct < 0) {
- pct = 0;
- } else if (pct > 100) {
- pct = 100;
- }
- }
-
- /* !!! FIXME: calculate (secs). */
-
- /*
- * We pick the battery that claims to have the most minutes left.
- * (failing a report of minutes, we'll take the highest percent.)
- */
- if ((secs < 0) && (*seconds < 0)) {
- if ((pct < 0) && (*percent < 0)) {
- choose = SDL_TRUE; /* at least we know there's a battery. */
- }
- if (pct > *percent) {
- choose = SDL_TRUE;
- }
- } else if (secs > *seconds) {
- choose = SDL_TRUE;
- }
-
- if (choose) {
- *seconds = secs;
- *percent = pct;
- *charging = charge;
- }
-}
-
-static void
-check_proc_acpi_ac_adapter(const char * node, SDL_bool * have_ac)
-{
- const char *base = proc_acpi_ac_adapter_path;
- char state[256];
- char *ptr = NULL;
- char *key = NULL;
- char *val = NULL;
-
- if (!read_power_file(base, node, "state", state, sizeof (state))) {
- return;
- }
-
- ptr = &state[0];
- while (make_proc_acpi_key_val(&ptr, &key, &val)) {
- if (strcmp(key, "state") == 0) {
- if (strcmp(val, "on-line") == 0) {
- *have_ac = SDL_TRUE;
- }
- }
- }
-}
-
-
-SDL_bool
-SDL_GetPowerInfo_Linux_proc_acpi(SDL_PowerState * state,
- int *seconds, int *percent)
-{
- struct dirent *dent = NULL;
- DIR *dirp = NULL;
- SDL_bool have_battery = SDL_FALSE;
- SDL_bool have_ac = SDL_FALSE;
- SDL_bool charging = SDL_FALSE;
-
- *seconds = -1;
- *percent = -1;
- *state = SDL_POWERSTATE_UNKNOWN;
-
- dirp = opendir(proc_acpi_battery_path);
- if (dirp == NULL) {
- return SDL_FALSE; /* can't use this interface. */
- } else {
- while ((dent = readdir(dirp)) != NULL) {
- const char *node = dent->d_name;
- check_proc_acpi_battery(node, &have_battery, &charging,
- seconds, percent);
- }
- closedir(dirp);
- }
-
- dirp = opendir(proc_acpi_ac_adapter_path);
- if (dirp == NULL) {
- return SDL_FALSE; /* can't use this interface. */
- } else {
- while ((dent = readdir(dirp)) != NULL) {
- const char *node = dent->d_name;
- check_proc_acpi_ac_adapter(node, &have_ac);
- }
- closedir(dirp);
- }
-
- if (!have_battery) {
- *state = SDL_POWERSTATE_NO_BATTERY;
- } else if (charging) {
- *state = SDL_POWERSTATE_CHARGING;
- } else if (have_ac) {
- *state = SDL_POWERSTATE_CHARGED;
- } else {
- *state = SDL_POWERSTATE_ON_BATTERY;
- }
-
- return SDL_TRUE; /* definitive answer. */
-}
-
-
-static SDL_bool
-next_string(char **_ptr, char **_str)
-{
- char *ptr = *_ptr;
- char *str = *_str;
-
- while (*ptr == ' ') { /* skip any spaces... */
- ptr++;
- }
-
- if (*ptr == '\0') {
- return SDL_FALSE;
- }
-
- str = ptr;
- while ((*ptr != ' ') && (*ptr != '\n') && (*ptr != '\0'))
- ptr++;
-
- if (*ptr != '\0')
- *(ptr++) = '\0';
-
- *_str = str;
- *_ptr = ptr;
- return SDL_TRUE;
-}
-
-static SDL_bool
-int_string(char *str, int *val)
-{
- char *endptr = NULL;
- *val = (int) strtol(str, &endptr, 0);
- return ((*str != '\0') && (*endptr == '\0'));
-}
-
-/* http://lxr.linux.no/linux+v2.6.29/drivers/char/apm-emulation.c */
-SDL_bool
-SDL_GetPowerInfo_Linux_proc_apm(SDL_PowerState * state,
- int *seconds, int *percent)
-{
- SDL_bool need_details = SDL_FALSE;
- int ac_status = 0;
- int battery_status = 0;
- int battery_flag = 0;
- int battery_percent = 0;
- int battery_time = 0;
- const int fd = open(proc_apm_path, O_RDONLY);
- char buf[128];
- char *ptr = &buf[0];
- char *str = NULL;
- ssize_t br;
-
- if (fd == -1) {
- return SDL_FALSE; /* can't use this interface. */
- }
-
- br = read(fd, buf, sizeof (buf) - 1);
- close(fd);
-
- if (br < 0) {
- return SDL_FALSE;
- }
-
- buf[br] = '\0'; /* null-terminate the string. */
- if (!next_string(&ptr, &str)) { /* driver version */
- return SDL_FALSE;
- }
- if (!next_string(&ptr, &str)) { /* BIOS version */
- return SDL_FALSE;
- }
- if (!next_string(&ptr, &str)) { /* APM flags */
- return SDL_FALSE;
- }
-
- if (!next_string(&ptr, &str)) { /* AC line status */
- return SDL_FALSE;
- } else if (!int_string(str, &ac_status)) {
- return SDL_FALSE;
- }
-
- if (!next_string(&ptr, &str)) { /* battery status */
- return SDL_FALSE;
- } else if (!int_string(str, &battery_status)) {
- return SDL_FALSE;
- }
- if (!next_string(&ptr, &str)) { /* battery flag */
- return SDL_FALSE;
- } else if (!int_string(str, &battery_flag)) {
- return SDL_FALSE;
- }
- if (!next_string(&ptr, &str)) { /* remaining battery life percent */
- return SDL_FALSE;
- }
- if (str[strlen(str) - 1] == '%') {
- str[strlen(str) - 1] = '\0';
- }
- if (!int_string(str, &battery_percent)) {
- return SDL_FALSE;
- }
-
- if (!next_string(&ptr, &str)) { /* remaining battery life time */
- return SDL_FALSE;
- } else if (!int_string(str, &battery_time)) {
- return SDL_FALSE;
- }
-
- if (!next_string(&ptr, &str)) { /* remaining battery life time units */
- return SDL_FALSE;
- } else if (strcmp(str, "min") == 0) {
- battery_time *= 60;
- }
-
- if (battery_flag == 0xFF) { /* unknown state */
- *state = SDL_POWERSTATE_UNKNOWN;
- } else if (battery_flag & (1 << 7)) { /* no battery */
- *state = SDL_POWERSTATE_NO_BATTERY;
- } else if (battery_flag & (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;
- need_details = SDL_TRUE;
- }
-
- *percent = -1;
- *seconds = -1;
- if (need_details) {
- const int pct = battery_percent;
- const int secs = battery_time;
-
- if (pct >= 0) { /* -1 == unknown */
- *percent = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
- }
- if (secs >= 0) { /* -1 == unknown */
- *seconds = secs;
- }
- }
-
- return SDL_TRUE;
-}
-
-/* !!! FIXME: implement d-bus queries to org.freedesktop.UPower. */
-
-SDL_bool
-SDL_GetPowerInfo_Linux_sys_class_power_supply(SDL_PowerState *state, int *seconds, int *percent)
-{
- const char *base = sys_class_power_supply_path;
- struct dirent *dent;
- DIR *dirp;
-
- dirp = opendir(base);
- if (!dirp) {
- return SDL_FALSE;
- }
-
- *state = SDL_POWERSTATE_NO_BATTERY; /* assume we're just plugged in. */
- *seconds = -1;
- *percent = -1;
-
- while ((dent = readdir(dirp)) != NULL) {
- const char *name = dent->d_name;
- SDL_bool choose = SDL_FALSE;
- char str[64];
- SDL_PowerState st;
- int secs;
- int pct;
-
- if ((SDL_strcmp(name, ".") == 0) || (SDL_strcmp(name, "..") == 0)) {
- continue; /* skip these, of course. */
- } else if (!read_power_file(base, name, "type", str, sizeof (str))) {
- continue; /* Don't know _what_ we're looking at. Give up on it. */
- } else if (SDL_strcmp(str, "Battery\n") != 0) {
- continue; /* we don't care about UPS and such. */
- }
-
- /* some drivers don't offer this, so if it's not explicitly reported assume it's present. */
- if (read_power_file(base, name, "present", str, sizeof (str)) && (SDL_strcmp(str, "0\n") == 0)) {
- st = SDL_POWERSTATE_NO_BATTERY;
- } else if (!read_power_file(base, name, "status", str, sizeof (str))) {
- st = SDL_POWERSTATE_UNKNOWN; /* uh oh */
- } else if (SDL_strcmp(str, "Charging\n") == 0) {
- st = SDL_POWERSTATE_CHARGING;
- } else if (SDL_strcmp(str, "Discharging\n") == 0) {
- st = SDL_POWERSTATE_ON_BATTERY;
- } else if ((SDL_strcmp(str, "Full\n") == 0) || (SDL_strcmp(str, "Not charging\n") == 0)) {
- st = SDL_POWERSTATE_CHARGED;
- } else {
- st = SDL_POWERSTATE_UNKNOWN; /* uh oh */
- }
-
- if (!read_power_file(base, name, "capacity", str, sizeof (str))) {
- pct = -1;
- } else {
- pct = SDL_atoi(str);
- pct = (pct > 100) ? 100 : pct; /* clamp between 0%, 100% */
- }
-
- if (!read_power_file(base, name, "time_to_empty_now", str, sizeof (str))) {
- secs = -1;
- } else {
- secs = SDL_atoi(str);
- secs = (secs <= 0) ? -1 : secs; /* 0 == unknown */
- }
-
- /*
- * We pick the battery that claims to have the most minutes left.
- * (failing a report of minutes, we'll take the highest percent.)
- */
- if ((secs < 0) && (*seconds < 0)) {
- if ((pct < 0) && (*percent < 0)) {
- choose = SDL_TRUE; /* at least we know there's a battery. */
- } else if (pct > *percent) {
- choose = SDL_TRUE;
- }
- } else if (secs > *seconds) {
- choose = SDL_TRUE;
- }
-
- if (choose) {
- *seconds = secs;
- *percent = pct;
- *state = st;
- }
- }
-
- closedir(dirp);
- return SDL_TRUE; /* don't look any further. */
-}
-
-#endif /* SDL_POWER_LINUX */
-#endif /* SDL_POWER_DISABLED */
-
-/* vi: set ts=4 sw=4 expandtab: */