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sleep-util: move check_wakeup_type to sleep/sleep

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This commit is contained in:
Mike Yuan
2023-09-20 21:19:07 +08:00
parent e071384dc5
commit 1482feda01
3 changed files with 34 additions and 35 deletions
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34
src/shared/sleep-util.c
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@@ -471,40 +471,6 @@ int battery_trip_point_alarm_exists(void) {
return true;
}
/* Return true if wakeup type is APM timer */
int check_wakeup_type(void) {
static const char dmi_object_path[] = "/sys/firmware/dmi/entries/1-0/raw";
uint8_t wakeup_type_byte, tablesize;
_cleanup_free_ char *buf = NULL;
size_t bufsize;
int r;
/* implementation via dmi/entries */
r = read_full_virtual_file(dmi_object_path, &buf, &bufsize);
if (r < 0)
return log_debug_errno(r, "Unable to read %s: %m", dmi_object_path);
if (bufsize < 25)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Only read %zu bytes from %s (expected 25)", bufsize, dmi_object_path);
/* index 1 stores the size of table */
tablesize = (uint8_t) buf[1];
if (tablesize < 25)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Table size lesser than the index[0x18] where waketype byte is available.");
wakeup_type_byte = (uint8_t) buf[24];
/* 0 is Reserved and 8 is AC Power Restored. As per table 12 in
* https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.4.0.pdf */
if (wakeup_type_byte >= 128)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Expected value in range 0-127");
if (wakeup_type_byte == 3) {
log_debug("DMI BIOS System Information indicates wakeup type is APM Timer");
return true;
}
return false;
}
int can_sleep_state(char **requested_types) {
_cleanup_free_ char *text = NULL;
int r;

1
src/shared/sleep-util.h
View File

@@ -77,7 +77,6 @@ int estimate_battery_discharge_rate_per_hour(
Hashmap *current_capacity,
usec_t before_timestamp,
usec_t after_timestamp);
int check_wakeup_type(void);
int battery_trip_point_alarm_exists(void);
const char* sleep_operation_to_string(SleepOperation s) _const_;

34
src/sleep/sleep.c
View File

@@ -176,6 +176,40 @@ static int write_state(FILE **f, char **states) {
return r;
}
/* Return true if wakeup type is APM timer */
static int check_wakeup_type(void) {
static const char dmi_object_path[] = "/sys/firmware/dmi/entries/1-0/raw";
uint8_t wakeup_type_byte, tablesize;
_cleanup_free_ char *buf = NULL;
size_t bufsize;
int r;
/* implementation via dmi/entries */
r = read_full_virtual_file(dmi_object_path, &buf, &bufsize);
if (r < 0)
return log_debug_errno(r, "Unable to read %s: %m", dmi_object_path);
if (bufsize < 25)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Only read %zu bytes from %s (expected 25)", bufsize, dmi_object_path);
/* index 1 stores the size of table */
tablesize = (uint8_t) buf[1];
if (tablesize < 25)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Table size lesser than the index[0x18] where waketype byte is available.");
wakeup_type_byte = (uint8_t) buf[24];
/* 0 is Reserved and 8 is AC Power Restored. As per table 12 in
* https://www.dmtf.org/sites/default/files/standards/documents/DSP0134_3.4.0.pdf */
if (wakeup_type_byte >= 128)
return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Expected value in range 0-127");
if (wakeup_type_byte == 3) {
log_debug("DMI BIOS System Information indicates wakeup type is APM Timer");
return true;
}
return false;
}
static int lock_all_homes(void) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;