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powerhal: Add set_profile support

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Change-Id: I0d7fb8c5a7e5e06c300cbb4b78b6e1013d7bff6a
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
This commit is contained in:
Andreas Schneider 2016-02-03 10:43:47 +01:00 committed by Christopher N. Hesse
parent 438a27e268
commit f15d7f4b0b
1 changed files with 73 additions and 30 deletions
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103
power/power.c
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@ -58,8 +58,12 @@ struct samsung_power_module {
bool touchkey_blocked;
};
/* POWER_HINT_LOW_POWER */
static bool low_power_mode = false;
enum power_profile_e {
PROFILE_POWER_SAVE = 0,
PROFILE_BALANCED,
PROFILE_HIGH_PERFORMANCE
};
static enum power_profile_e current_power_profile = PROFILE_BALANCED;
/**********************************************************
*** HELPER FUNCTIONS
@ -140,6 +144,51 @@ static int boostpulse_open(struct samsung_power_module *samsung_pwr)
return samsung_pwr->boostpulse_fd;
}
static void set_power_profile(struct samsung_power_module *samsung_pwr,
enum power_profile_e profile)
{
int rc;
struct stat sb;
if (current_power_profile == profile) {
return;
}
ALOGV("%s: profile=%d", __func__, profile);
switch (profile) {
case PROFILE_POWER_SAVE:
// Limit to hispeed freq
sysfs_write(CPU0_MAX_FREQ_PATH, samsung_pwr->cpu0_hispeed_freq);
rc = stat(CPU4_MAX_FREQ_PATH, &sb);
if (rc == 0) {
sysfs_write(CPU4_MAX_FREQ_PATH, samsung_pwr->cpu4_hispeed_freq);
}
ALOGD("%s: set powersave mode", __func__);
break;
case PROFILE_BALANCED:
// Restore normal max freq
sysfs_write(CPU0_MAX_FREQ_PATH, samsung_pwr->cpu0_max_freq);
rc = stat(CPU4_MAX_FREQ_PATH, &sb);
if (rc == 0) {
sysfs_write(CPU4_MAX_FREQ_PATH, samsung_pwr->cpu4_max_freq);
}
ALOGD("%s: set balanced mode", __func__);
break;
case PROFILE_HIGH_PERFORMANCE:
// Restore normal max freq
sysfs_write(CPU0_MAX_FREQ_PATH, samsung_pwr->cpu0_max_freq);
rc = stat(CPU4_MAX_FREQ_PATH, &sb);
if (rc == 0) {
sysfs_write(CPU4_MAX_FREQ_PATH, samsung_pwr->cpu4_max_freq);
}
ALOGD("%s: set performance mode", __func__);
break;
}
current_power_profile = profile;
}
static void find_input_nodes(struct samsung_power_module *samsung_pwr, char *dir)
{
const char filename[] = "name";
@ -373,6 +422,13 @@ static void samsung_power_hint(struct power_module *module,
switch (hint) {
case POWER_HINT_INTERACTION: {
char errno_str[64];
ssize_t len;
int fd;
if (current_power_profile == PROFILE_POWER_SAVE) {
return;
}
ALOGV("%s: POWER_HINT_INTERACTION", __func__);
@ -390,38 +446,14 @@ static void samsung_power_hint(struct power_module *module,
case POWER_HINT_VSYNC: {
ALOGV("%s: POWER_HINT_VSYNC", __func__);
break;
}
case POWER_HINT_LOW_POWER: {
int rc;
struct stat sb;
case POWER_HINT_SET_PROFILE: {
int profile = *((intptr_t *)data);
ALOGV("%s: POWER_HINT_LOW_POWER", __func__);
ALOGV("%s: POWER_HINT_SET_PROFILE", __func__);
pthread_mutex_lock(&samsung_pwr->lock);
/*
* TODO: We fail to restore the max freqs after low power mode has been
* disabled for some reason (big.LITTLE specific issue?)
*
if (data) {
sysfs_write(CPU0_MAX_FREQ_PATH, samsung_pwr->cpu0_hispeed_freq);
rc = stat(CPU4_MAX_FREQ_PATH, &sb);
if (rc == 0) {
sysfs_write(CPU4_MAX_FREQ_PATH, samsung_pwr->cpu4_hispeed_freq);
}
} else {
sysfs_write(CPU0_MAX_FREQ_PATH, samsung_pwr->cpu0_max_freq);
rc = stat(CPU4_MAX_FREQ_PATH, &sb);
if (rc == 0) {
sysfs_write(CPU4_MAX_FREQ_PATH, samsung_pwr->cpu4_max_freq);
}
}
*/
low_power_mode = data;
pthread_mutex_unlock(&samsung_pwr->lock);
set_power_profile(samsung_pwr, profile);
break;
}
default:
@ -429,6 +461,16 @@ static void samsung_power_hint(struct power_module *module,
}
}
static int samsung_get_feature(struct power_module *module __unused,
feature_t feature)
{
if (feature == POWER_FEATURE_SUPPORTED_PROFILES) {
return 3;
}
return -1;
}
static struct hw_module_methods_t power_module_methods = {
.open = NULL,
};
@ -448,6 +490,7 @@ struct samsung_power_module HAL_MODULE_INFO_SYM = {
.init = samsung_power_init,
.setInteractive = samsung_power_set_interactive,
.powerHint = samsung_power_hint,
.getFeature = samsung_get_feature
},
.lock = PTHREAD_MUTEX_INITIALIZER,