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fix(pm): Fix deep sleep with sideband behaviors.

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* Properly implement the PM hook needed for sideband behavior
  kscan device to have wakeup source enabled on it.
This commit is contained in:
Peter Johanson 2024-01-03 11:11:24 -08:00 • committed by Pete Johanson
parent 09111f1cf3
commit 4198fac90f
3 changed files with 31 additions and 5 deletions
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2
app/dts/bindings/kscan/zmk,kscan-sideband-behaviors.yaml
View file

@ -7,7 +7,7 @@ description: |
compatible: "zmk,kscan-sideband-behaviors"
include: [kscan.yaml]
include: kscan.yaml
properties:
kscan:

5
app/src/kscan.c
View file

@ -74,13 +74,14 @@ int zmk_kscan_init(const struct device *dev) {
k_work_init(&msg_processor.work, zmk_kscan_process_msgq);
kscan_config(dev, zmk_kscan_callback);
kscan_enable_callback(dev);
#if IS_ENABLED(CONFIG_PM_DEVICE)
if (pm_device_wakeup_is_capable(dev)) {
pm_device_wakeup_enable(dev, true);
}
#endif // IS_ENABLED(CONFIG_PM_DEVICE)
kscan_config(dev, zmk_kscan_callback);
kscan_enable_callback(dev);
return 0;
}

29
app/src/kscan_sideband_behaviors.c
View file

@ -75,6 +75,7 @@ void ksbb_inner_kscan_callback(const struct device *dev, uint32_t row, uint32_t
}
static int ksbb_configure(const struct device *dev, kscan_callback_t callback) {
const struct ksbb_config *cfg = dev->config;
struct ksbb_data *data = dev->data;
if (!callback) {
@ -82,6 +83,13 @@ static int ksbb_configure(const struct device *dev, kscan_callback_t callback) {
}
data->callback = callback;
#if IS_ENABLED(CONFIG_PM_DEVICE)
if (pm_device_wakeup_is_enabled(dev) && pm_device_wakeup_is_capable(cfg->kscan)) {
pm_device_wakeup_enable(cfg->kscan, true);
}
#endif // IS_ENABLED(CONFIG_PM_DEVICE)
return 0;
}
@ -119,6 +127,21 @@ static const struct kscan_driver_api ksbb_api = {
.disable_callback = ksbb_disable,
};
#if IS_ENABLED(CONFIG_PM_DEVICE)
static int ksbb_pm_action(const struct device *dev, enum pm_device_action action) {
switch (action) {
case PM_DEVICE_ACTION_SUSPEND:
return ksbb_disable(dev);
case PM_DEVICE_ACTION_RESUME:
return ksbb_disable(dev);
default:
return -ENOTSUP;
}
}
#endif // IS_ENABLED(CONFIG_PM_DEVICE)
#define JUST_ONE(_id) 1
#define ENTRY(e) \
@ -136,7 +159,9 @@ static const struct kscan_driver_api ksbb_api = {
.entries_len = DT_INST_FOREACH_CHILD_STATUS_OKAY_SEP(n, JUST_ONE, (+)), \
}; \
struct ksbb_data ksbb_data_##n = {}; \
DEVICE_DT_INST_DEFINE(n, ksbb_init, NULL, &ksbb_data_##n, &ksbb_config_##n, APPLICATION, \
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, &ksbb_api);
PM_DEVICE_DT_INST_DEFINE(n, ksbb_pm_action); \
DEVICE_DT_INST_DEFINE(n, ksbb_init, PM_DEVICE_DT_INST_GET(n), &ksbb_data_##n, \
&ksbb_config_##n, APPLICATION, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT, \
&ksbb_api);
DT_INST_FOREACH_STATUS_OKAY(KSBB_INST)