diff options
| author | Michael Polyntsov <[email protected]> | 2024-07-19 13:12:12 +0400 |
|---|---|---|
| committer | Tom Rini <[email protected]> | 2024-07-30 12:35:23 -0600 |
| commit | b557f55e90f087ec310592b833441cd326206f61 (patch) | |
| tree | a7d3ee88851b7f242eb24dedfe2115e5fe7a395b /include | |
| parent | 2a15c676fa3413e7995e2a8b47e8932300e9e70b (diff) | |
led: Implement software led blinking
If hardware (or driver) doesn't support leds blinking, it's
now possible to use software implementation of blinking instead.
This relies on cyclic functions.
Signed-off-by: Michael Polyntsov <[email protected]>
Signed-off-by: Mikhail Kshevetskiy <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/led.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/led.h b/include/led.h index 9b24a4ce188..8270d6cef93 100644 --- a/include/led.h +++ b/include/led.h @@ -18,6 +18,20 @@ enum led_state_t { LEDST_COUNT, }; +enum led_sw_blink_state_t { + LED_SW_BLINK_ST_DISABLED, + LED_SW_BLINK_ST_NOT_READY, + LED_SW_BLINK_ST_OFF, + LED_SW_BLINK_ST_ON, +}; + +struct led_sw_blink { + enum led_sw_blink_state_t state; + struct udevice *dev; + struct cyclic_info cyclic; + const char cyclic_name[0]; +}; + /** * struct led_uc_plat - Platform data the uclass stores about each device * @@ -27,6 +41,9 @@ enum led_state_t { struct led_uc_plat { const char *label; enum led_state_t default_state; +#ifdef CONFIG_LED_SW_BLINK + struct led_sw_blink *sw_blink; +#endif }; /** @@ -116,4 +133,9 @@ int led_set_period(struct udevice *dev, int period_ms); */ int led_bind_generic(struct udevice *parent, const char *driver_name); +/* Internal functions for software blinking. Do not use them in your code */ +int led_sw_set_period(struct udevice *dev, int period_ms); +bool led_sw_is_blinking(struct udevice *dev); +bool led_sw_on_state_change(struct udevice *dev, enum led_state_t state); + #endif |