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[RFC] fwk: lotus: debounce input deck power-off #97

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[RFC] fwk: lotus: debounce input deck power-off #97

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12 changes: 12 additions & 0 deletions zephyr/program/framework/lotus/src/input_module.c
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,7 @@ LOG_MODULE_REGISTER(inputmodule, LOG_LEVEL_INF);
#define INPUT_MODULE_POLL_INTERVAL 10*MSEC
#define INPUT_MODULE_POWER_ON_DELAY (300*MSEC)
#define INPUT_MODULE_MUX_DELAY_US 2
#define INPUT_MODULE_DISCON_DEBOUNCE (240*MSEC)

int oc_count;
int force_on;
Expand Down Expand Up @@ -195,6 +196,7 @@ static void poll_c_deck(void)
{
static int turning_on_count;
static int current_adc_ch = 0;
static int disconnect_counter = 0;

hub_board_id[current_adc_ch] = get_hardware_id(ADC_HUB_BOARD_ID);
current_adc_ch = (current_adc_ch + 1) % 8;
Expand Down Expand Up @@ -224,6 +226,7 @@ static void poll_c_deck(void)
turning_on_count > (INPUT_MODULE_POWER_ON_DELAY / (INPUT_MODULE_POLL_INTERVAL*8))) {
enable_touchpad_emulate(0);
inputdeck_set_power(true);
disconnect_counter = 0;
deck_state = DECK_ON;
LOG_INF("Input modules on");
} else if (hub_board_id[TOUCHPAD] != INPUT_MODULE_TOUCHPAD) {
Expand All @@ -236,6 +239,15 @@ static void poll_c_deck(void)
* if lid is closed input modules cannot be removed
*/
if (!input_deck_is_fully_populated()) {
++disconnect_counter;
LOG_DBG("Deck not populated. Debounce counter at %d",
disconnect_counter);
} else {
disconnect_counter = 0;
}

if (disconnect_counter > (INPUT_MODULE_DISCON_DEBOUNCE /
(INPUT_MODULE_POLL_INTERVAL*8))) {
inputdeck_set_power(false);
/* enable TP emulation */
enable_touchpad_emulate(1);
Expand Down