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power: Keep boostpulse fd opened

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No one else should be writing to this, so keep the fd
opened.

Change-Id: I4258f7f7d69250f4832a67807031ab3faa9ff586
This commit is contained in:
Christopher N. Hesse 2017-03-04 01:41:58 +01:00
parent a042209f66
commit f21fbdb02e
1 changed files with 23 additions and 30 deletions
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53
power/power.c
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@ -62,7 +62,6 @@ enum power_profile_e {
};
static enum power_profile_e current_power_profile = PROFILE_BALANCED;
static bool boostpulse_warned = false;
/**********************************************************
*** HELPER FUNCTIONS
@ -140,29 +139,32 @@ static void boost(int32_t duration_us)
close(fd);
}
static void boostpulse_open(struct samsung_power_module *samsung_pwr)
{
samsung_pwr->boostpulse_fd = open(BOOSTPULSE_PATH, O_WRONLY);
if (samsung_pwr->boostpulse_fd < 0) {
ALOGE("Error opening %s: %s\n", BOOSTPULSE_PATH, strerror(errno));
}
}
static void send_boostpulse(int boostpulse_fd)
{
int len;
if (boostpulse_fd < 0) {
return;
}
len = write(boostpulse_fd, "1", 1);
if (len < 0) {
ALOGE("Error writing to %s: %s", BOOSTPULSE_PATH, strerror(errno));
}
}
/**********************************************************
*** POWER FUNCTIONS
**********************************************************/
/* You need to request the powerhal lock before calling this function */
static int boostpulse_open(struct samsung_power_module *samsung_pwr)
{
char errno_str[64];
if (samsung_pwr->boostpulse_fd < 0) {
samsung_pwr->boostpulse_fd = open(BOOSTPULSE_PATH, O_WRONLY);
if (samsung_pwr->boostpulse_fd < 0) {
if (!boostpulse_warned) {
strerror_r(errno, errno_str, sizeof(errno_str));
ALOGE("Error opening %s: %s", BOOSTPULSE_PATH, errno_str);
boostpulse_warned = true;
}
}
}
return samsung_pwr->boostpulse_fd;
}
static void set_power_profile(struct samsung_power_module *samsung_pwr,
int profile)
{
@ -413,16 +415,7 @@ static void samsung_power_hint(struct power_module *module,
}
ALOGV("%s: POWER_HINT_INTERACTION", __func__);
if (boostpulse_open(samsung_pwr) >= 0) {
len = write(samsung_pwr->boostpulse_fd, "1", 1);
if (len < 0) {
strerror_r(errno, errno_str, sizeof(errno_str));
ALOGE("Error writing to %s: %s", BOOSTPULSE_PATH, errno_str);
}
}
send_boostpulse(samsung_pwr->boostpulse_fd);
break;
}
case POWER_HINT_VSYNC: {