diff options
| -rw-r--r-- | board/kevin/board.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/board/kevin/board.c b/board/kevin/board.c index c85a0840c4..b7c48925fe 100644 --- a/board/kevin/board.c +++ b/board/kevin/board.c @@ -36,6 +36,7 @@ #include "shi_chip.h" #include "spi.h" #include "switch.h" +#include "system.h" #include "task.h" #include "tcpm.h" #include "timer.h" @@ -614,3 +615,27 @@ static void usb_charge_shutdown(void) } DECLARE_HOOK(HOOK_CHIPSET_SHUTDOWN, usb_charge_shutdown, HOOK_PRIO_DEFAULT); #endif + +#define PWM_DISPLIGHT_SYSJUMP_TAG 0x5044 /* "PD" */ +#define PWM_HOOK_VERSION 1 + +static void pwm_displight_restore_state(void) +{ + const int *prev; + int version, size; + + prev = (const int *)system_get_jump_tag(PWM_DISPLIGHT_SYSJUMP_TAG, + &version, &size); + if (prev && version == PWM_HOOK_VERSION && size == sizeof(*prev)) + pwm_set_duty(PWM_CH_DISPLIGHT, *prev); +} +DECLARE_HOOK(HOOK_INIT, pwm_displight_restore_state, HOOK_PRIO_INIT_PWM + 1); + +static void pwm_displight_preserve_state(void) +{ + int pwm_displight_duty = pwm_get_duty(PWM_CH_DISPLIGHT); + + system_add_jump_tag(PWM_DISPLIGHT_SYSJUMP_TAG, PWM_HOOK_VERSION, + sizeof(pwm_displight_duty), &pwm_displight_duty); +} +DECLARE_HOOK(HOOK_SYSJUMP, pwm_displight_preserve_state, HOOK_PRIO_DEFAULT); |