diff options
| -rw-r--r-- | common/power_button_x86.c | 33 | ||||
| -rw-r--r-- | include/ec_commands.h | 14 |
2 files changed, 43 insertions, 4 deletions
diff --git a/common/power_button_x86.c b/common/power_button_x86.c index 864b88082e..ee85bc5c6d 100644 --- a/common/power_button_x86.c +++ b/common/power_button_x86.c @@ -112,6 +112,11 @@ static const char * const state_names[] = { */ static uint64_t tnext_state; +/* + * Determines whether to execute initial SMI pulse (t0 stage) + */ +static int smi_enabled = 1; + static void set_pwrbtn_to_pch(int high, int init) { /* @@ -265,12 +270,18 @@ static void state_machine(uint64_t tnow) chipset_exit_hard_off(); tnext_state = tnow + PWRBTN_INITIAL_US; pwrbtn_state = PWRBTN_STATE_WAS_OFF; + set_pwrbtn_to_pch(0, 0); } else { - /* Chipset is on, so send the chipset a pulse */ - tnext_state = tnow + PWRBTN_DELAY_T0; - pwrbtn_state = PWRBTN_STATE_T0; + if (smi_enabled) { + /* Chipset is on, so send the chipset a pulse */ + tnext_state = tnow + PWRBTN_DELAY_T0; + pwrbtn_state = PWRBTN_STATE_T0; + set_pwrbtn_to_pch(0, 0); + } else { + tnext_state = tnow + PWRBTN_DELAY_T1; + pwrbtn_state = PWRBTN_STATE_T1; + } } - set_pwrbtn_to_pch(0, 0); break; case PWRBTN_STATE_T0: tnext_state = tnow + PWRBTN_DELAY_T1; @@ -460,3 +471,17 @@ static void powerbtn_x86_charge(void) task_wake(TASK_ID_POWERBTN); } DECLARE_HOOK(HOOK_CHARGE_STATE_CHANGE, powerbtn_x86_charge, HOOK_PRIO_DEFAULT); + +/** + * Handle configuring the power button behavior through a host command + */ +static int hc_config_powerbtn_x86(struct host_cmd_handler_args *args) +{ + const struct ec_params_config_power_button *p = args->params; + + smi_enabled = p->flags & (1 << EC_POWER_BUTTON_ENABLE_SMI_PULSE); + + return EC_SUCCESS; +} +DECLARE_HOST_COMMAND(EC_CMD_CONFIG_POWER_BUTTON, hc_config_powerbtn_x86, + EC_VER_MASK(0)); diff --git a/include/ec_commands.h b/include/ec_commands.h index b63ae327fd..f4ee639c64 100644 --- a/include/ec_commands.h +++ b/include/ec_commands.h @@ -2254,6 +2254,20 @@ struct __ec_align1 ec_params_force_lid_open { }; /*****************************************************************************/ +/* Configure the behavior of the power button */ +#define EC_CMD_CONFIG_POWER_BUTTON 0x002D + +enum ec_config_power_button_flags { + /* Enable/Disable SMI pulses for x86 devices */ + EC_POWER_BUTTON_ENABLE_SMI_PULSE = 1 << 0, +}; + +struct __ec_align1 ec_params_config_power_button { + /* See enum ec_config_power_button_flags */ + uint8_t flags; +}; + +/*****************************************************************************/ /* USB charging control commands */ /* Set USB port charging mode */ |