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feat(ext-power): Cut power when PM is sleeping

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Nick Winans 2020-12-15 13:22:16 -06:00 committed by Pete Johanson
parent 87dbd4ca28
commit 43f6d798be
3 changed files with 53 additions and 0 deletions
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3
app/Kconfig
View file

@ -234,6 +234,9 @@ choice SYS_PM_POLICY
default SYS_PM_POLICY_APP default SYS_PM_POLICY_APP
endchoice endchoice
config DEVICE_POWER_MANAGEMENT
default y
config ZMK_IDLE_SLEEP_TIMEOUT config ZMK_IDLE_SLEEP_TIMEOUT
int "Milliseconds of inactivity before entering deep sleep" int "Milliseconds of inactivity before entering deep sleep"
default 900000 default 900000

46
app/src/ext_power_generic.c
View file

@ -31,6 +31,9 @@ struct ext_power_generic_data {
#if IS_ENABLED(CONFIG_SETTINGS) #if IS_ENABLED(CONFIG_SETTINGS)
bool settings_init; bool settings_init;
#endif #endif
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
uint32_t pm_state;
#endif
}; };
#if IS_ENABLED(CONFIG_SETTINGS) #if IS_ENABLED(CONFIG_SETTINGS)
@ -139,6 +142,10 @@ static int ext_power_generic_init(const struct device *dev) {
return -EIO; return -EIO;
} }
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
data->pm_state = DEVICE_PM_ACTIVE_STATE;
#endif
#if IS_ENABLED(CONFIG_SETTINGS) #if IS_ENABLED(CONFIG_SETTINGS)
settings_subsys_init(); settings_subsys_init();
@ -167,6 +174,39 @@ static int ext_power_generic_init(const struct device *dev) {
return 0; return 0;
} }
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
static int ext_power_generic_pm_control(const struct device *dev, uint32_t ctrl_command,
void *context, device_pm_cb cb, void *arg) {
int rc;
struct ext_power_generic_data *data = dev->driver_data;
switch (ctrl_command) {
case DEVICE_PM_SET_POWER_STATE:
if (*((uint32_t *)context) == DEVICE_PM_ACTIVE_STATE) {
data->pm_state = DEVICE_PM_ACTIVE_STATE;
rc = 0;
} else {
ext_power_generic_disable(dev);
data->pm_state = DEVICE_PM_LOW_POWER_STATE;
rc = 0;
}
break;
case DEVICE_PM_GET_POWER_STATE:
*((uint32_t *)context) = data->pm_state;
rc = 0;
break;
default:
rc = -EINVAL;
}
if (cb != NULL) {
cb(dev, rc, context, arg);
}
return rc;
}
#endif /* CONFIG_DEVICE_POWER_MANAGEMENT */
static const struct ext_power_generic_config config = { static const struct ext_power_generic_config config = {
.label = DT_INST_GPIO_LABEL(0, control_gpios), .label = DT_INST_GPIO_LABEL(0, control_gpios),
.pin = DT_INST_GPIO_PIN(0, control_gpios), .pin = DT_INST_GPIO_PIN(0, control_gpios),
@ -183,7 +223,13 @@ static const struct ext_power_api api = {.enable = ext_power_generic_enable,
.disable = ext_power_generic_disable, .disable = ext_power_generic_disable,
.get = ext_power_generic_get}; .get = ext_power_generic_get};
#ifdef CONFIG_DEVICE_POWER_MANAGEMENT
DEVICE_DEFINE(ext_power_generic, DT_INST_LABEL(0), ext_power_generic_init,
&ext_power_generic_pm_control, &data, &config, APPLICATION,
CONFIG_APPLICATION_INIT_PRIORITY, &api);
#else
DEVICE_AND_API_INIT(ext_power_generic, DT_INST_LABEL(0), ext_power_generic_init, &data, &config, DEVICE_AND_API_INIT(ext_power_generic, DT_INST_LABEL(0), ext_power_generic_init, &data, &config,
APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY, &api); APPLICATION, CONFIG_APPLICATION_INIT_PRIORITY, &api);
#endif /* CONFIG_DEVICE_POWER_MANAGEMENT */
#endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */ #endif /* DT_HAS_COMPAT_STATUS_OKAY(DT_DRV_COMPAT) */

4
app/src/power.c
View file

@ -34,3 +34,7 @@ enum power_states sys_pm_policy_next_state(int32_t ticks) {
return SYS_POWER_STATE_ACTIVE; return SYS_POWER_STATE_ACTIVE;
} }
bool sys_pm_policy_low_power_devices(enum power_states pm_state) {
return sys_pm_is_sleep_state(pm_state);
}