diff options
Diffstat (limited to 'drivers/led')
| -rw-r--r-- | drivers/led/Kconfig | 24 | ||||
| -rw-r--r-- | drivers/led/Makefile | 2 | ||||
| -rw-r--r-- | drivers/led/led-uclass.c | 162 | ||||
| -rw-r--r-- | drivers/led/led_sw_blink.c | 17 |
4 files changed, 202 insertions, 3 deletions
diff --git a/drivers/led/Kconfig b/drivers/led/Kconfig index bee74b25751..c98cbf92fab 100644 --- a/drivers/led/Kconfig +++ b/drivers/led/Kconfig @@ -9,6 +9,30 @@ config LED can provide access to board-specific LEDs. Use of the device tree for configuration is encouraged. +config LED_BOOT + bool "Enable LED boot support" + help + Enable LED boot support. + + LED boot is a specific LED assigned to signal boot operation status. + Defined in Device Tree /options/u-boot node. Refer here for the supported + options [1]. + + [1] dtschema/schemas/options/u-boot.yaml + +config LED_ACTIVITY + bool "Enable LED activity support" + help + Enable LED activity support. + + LED activity is a specific LED assigned to signal activity operation + like file trasnfer, flash write/erase... + + Defined in Device Tree /options/u-boot node. Refer here for the supported + options [1]. + + [1] dtschema/schemas/options/u-boot.yaml + config LED_BCM6328 bool "LED Support for BCM6328" depends on LED && ARCH_BMIPS diff --git a/drivers/led/Makefile b/drivers/led/Makefile index e27aa488482..aa64a38b4e1 100644 --- a/drivers/led/Makefile +++ b/drivers/led/Makefile @@ -10,6 +10,6 @@ obj-$(CONFIG_LED_BCM6358) += led_bcm6358.o obj-$(CONFIG_LED_BCM6753) += led_bcm6753.o obj-$(CONFIG_LED_BCM6858) += led_bcm6858.o obj-$(CONFIG_LED_PWM) += led_pwm.o -obj-$(CONFIG_$(SPL_)LED_GPIO) += led_gpio.o +obj-$(CONFIG_$(XPL_)LED_GPIO) += led_gpio.o obj-$(CONFIG_LED_CORTINA) += led_cortina.o obj-$(CONFIG_LED_LP5562) += led_lp5562.o diff --git a/drivers/led/led-uclass.c b/drivers/led/led-uclass.c index 199d68bc25a..05e09909b7d 100644 --- a/drivers/led/led-uclass.c +++ b/drivers/led/led-uclass.c @@ -94,6 +94,144 @@ int led_set_period(struct udevice *dev, int period_ms) return -ENOSYS; } +#ifdef CONFIG_LED_BOOT +static int led_boot_get(struct udevice **devp, int *period_ms) +{ + struct led_uc_priv *priv; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_LED, &uc); + if (ret) + return ret; + + priv = uclass_get_priv(uc); + if (!priv->boot_led_label) + return -ENOENT; + + if (period_ms) + *period_ms = priv->boot_led_period; + + return led_get_by_label(priv->boot_led_label, devp); +} + +int led_boot_on(void) +{ + struct udevice *dev; + int ret; + + ret = led_boot_get(&dev, NULL); + if (ret) + return ret; + + return led_set_state(dev, LEDST_ON); +} + +int led_boot_off(void) +{ + struct udevice *dev; + int ret; + + ret = led_boot_get(&dev, NULL); + if (ret) + return ret; + + return led_set_state(dev, LEDST_OFF); +} + +#if defined(CONFIG_LED_BLINK) || defined(CONFIG_LED_SW_BLINK) +int led_boot_blink(void) +{ + struct udevice *dev; + int period_ms, ret; + + ret = led_boot_get(&dev, &period_ms); + if (ret) + return ret; + + ret = led_set_period(dev, period_ms); + if (ret) { + if (ret != -ENOSYS) + return ret; + + /* fallback to ON with no set_period and no SW_BLINK */ + return led_set_state(dev, LEDST_ON); + } + + return led_set_state(dev, LEDST_BLINK); +} +#endif +#endif + +#ifdef CONFIG_LED_ACTIVITY +static int led_activity_get(struct udevice **devp, int *period_ms) +{ + struct led_uc_priv *priv; + struct uclass *uc; + int ret; + + ret = uclass_get(UCLASS_LED, &uc); + if (ret) + return ret; + + priv = uclass_get_priv(uc); + if (!priv->activity_led_label) + return -ENOENT; + + if (period_ms) + *period_ms = priv->activity_led_period; + + return led_get_by_label(priv->activity_led_label, devp); +} + +int led_activity_on(void) +{ + struct udevice *dev; + int ret; + + ret = led_activity_get(&dev, NULL); + if (ret) + return ret; + + return led_set_state(dev, LEDST_ON); +} + +int led_activity_off(void) +{ + struct udevice *dev; + int ret; + + ret = led_activity_get(&dev, NULL); + if (ret) + return ret; + + return led_set_state(dev, LEDST_OFF); +} + +#if defined(CONFIG_LED_BLINK) || defined(CONFIG_LED_SW_BLINK) +int led_activity_blink(void) +{ + struct udevice *dev; + int period_ms, ret; + + ret = led_activity_get(&dev, &period_ms); + if (ret) + return ret; + + ret = led_set_period(dev, period_ms); + if (ret) { + if (ret != -ENOSYS) + return ret; + + /* fallback to ON with no set_period and no SW_BLINK */ + return led_set_state(dev, LEDST_ON); + } + + return led_set_state(dev, LEDST_BLINK); +} +#endif +#endif + static int led_post_bind(struct udevice *dev) { struct led_uc_plat *uc_plat = dev_get_uclass_plat(dev); @@ -158,10 +296,34 @@ static int led_post_probe(struct udevice *dev) return ret; } +#if defined(CONFIG_LED_BOOT) || defined(CONFIG_LED_ACTIVITY) +static int led_init(struct uclass *uc) +{ + struct led_uc_priv *priv = uclass_get_priv(uc); + +#ifdef CONFIG_LED_BOOT + priv->boot_led_label = ofnode_options_read_str("boot-led"); + priv->boot_led_period = ofnode_options_read_int("boot-led-period", 250); +#endif + +#ifdef CONFIG_LED_ACTIVITY + priv->activity_led_label = ofnode_options_read_str("activity-led"); + priv->activity_led_period = ofnode_options_read_int("activity-led-period", + 250); +#endif + + return 0; +} +#endif + UCLASS_DRIVER(led) = { .id = UCLASS_LED, .name = "led", .per_device_plat_auto = sizeof(struct led_uc_plat), .post_bind = led_post_bind, .post_probe = led_post_probe, +#if defined(CONFIG_LED_BOOT) || defined(CONFIG_LED_ACTIVITY) + .init = led_init, + .priv_auto = sizeof(struct led_uc_priv), +#endif }; diff --git a/drivers/led/led_sw_blink.c b/drivers/led/led_sw_blink.c index 9e36edbee47..06a43db340c 100644 --- a/drivers/led/led_sw_blink.c +++ b/drivers/led/led_sw_blink.c @@ -103,8 +103,21 @@ bool led_sw_on_state_change(struct udevice *dev, enum led_state_t state) return false; if (state == LEDST_BLINK) { - /* start blinking on next led_sw_blink() call */ - sw_blink->state = LED_SW_BLINK_ST_OFF; + struct led_ops *ops = led_get_ops(dev); + + /* + * toggle LED initially and start blinking on next + * led_sw_blink() call. + */ + switch (ops->get_state(dev)) { + case LEDST_ON: + ops->set_state(dev, LEDST_OFF); + sw_blink->state = LED_SW_BLINK_ST_OFF; + default: + ops->set_state(dev, LEDST_ON); + sw_blink->state = LED_SW_BLINK_ST_ON; + } + return true; } |