d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Teach powerd how to query the PMU AC line state on PowerPC.

Browse Source
This commit is contained in:
Nathan Whitehorn 2009-05-31 10:27:24 +00:00
parent 1165ddc233
commit ebcc3763a8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=193161
1 changed files with 18 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
usr.sbin/powerd/powerd.c
View File

@ -74,6 +74,7 @@ const char *modes[] = {
};
#define ACPIAC "hw.acpi.acline"
#define PMUAC "dev.pmu.0.acline"
#define APMDEV "/dev/apm"
#define DEVDPIPE "/var/run/devd.pipe"
#define DEVCTL_MAXBUF 1024
@ -93,7 +94,8 @@ static void usage(void);
static int cp_times_mib[2];
static int freq_mib[4];
static int levels_mib[4];
static int acline_mib[3];
static int acline_mib[4];
static size_t acline_mib_len;
/* Configuration */
static int cpu_running_mark;
@ -105,7 +107,7 @@ static volatile sig_atomic_t exit_requested;
static power_src_t acline_status;
static enum {
ac_none,
ac_acpi_sysctl,
ac_sysctl,
ac_acpi_devd,
#ifdef USE_APM
ac_apm,
@ -259,13 +261,18 @@ get_freq_id(int freq, int *freqs, int numfreqs)
static void
acline_init()
{
size_t len;
acline_mib_len = 4;
len = 3;
if (sysctlnametomib(ACPIAC, acline_mib, &len) == 0) {
acline_mode = ac_acpi_sysctl;
if (sysctlnametomib(ACPIAC, acline_mib, &acline_mib_len) == 0) {
acline_mode = ac_sysctl;
if (vflag)
warnx("using sysctl for AC line status");
#if __powerpc__
} else if (sysctlnametomib(PMUAC, acline_mib, &acline_mib_len) == 0) {
acline_mode = ac_sysctl;
if (vflag)
warnx("using sysctl for AC line status");
#endif
#ifdef USE_APM
} else if ((apm_fd = open(APMDEV, O_RDONLY)) >= 0) {
if (vflag)
@ -291,7 +298,7 @@ acline_read(void)
if (vflag)
warnx("lost devd connection, switching to sysctl");
devd_close();
acline_mode = ac_acpi_sysctl;
acline_mode = ac_sysctl;
/* FALLTHROUGH */
}
if (rlen > 0 &&
@ -301,12 +308,13 @@ acline_read(void)
sscanf(ptr, "notify=%x", &notify) == 1)
acline_status = (notify ? SRC_AC : SRC_BATTERY);
}
if (acline_mode == ac_acpi_sysctl) {
if (acline_mode == ac_sysctl) {
int acline;
size_t len;
len = sizeof(acline);
if (sysctl(acline_mib, 3, &acline, &len, NULL, 0) == 0)
if (sysctl(acline_mib, acline_mib_len, &acline, &len,
NULL, 0) == 0)
acline_status = (acline ? SRC_AC : SRC_BATTERY);
else
acline_status = SRC_UNKNOWN;
@ -326,7 +334,7 @@ acline_read(void)
}
#endif
/* try to (re)connect to devd */
if (acline_mode == ac_acpi_sysctl) {
if (acline_mode == ac_sysctl) {
struct timeval now;
gettimeofday(&now, NULL);