diff options
Diffstat (limited to 'drivers/net/phy/aquantia/aquantia_leds.c')
| -rw-r--r-- | drivers/net/phy/aquantia/aquantia_leds.c | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/drivers/net/phy/aquantia/aquantia_leds.c b/drivers/net/phy/aquantia/aquantia_leds.c new file mode 100644 index 000000000000..0516ac02c3f8 --- /dev/null +++ b/drivers/net/phy/aquantia/aquantia_leds.c @@ -0,0 +1,150 @@ +// SPDX-License-Identifier: GPL-2.0 +/* LED driver for Aquantia PHY + * + * Author: Daniel Golle <daniel@makrotopia.org> + */ + +#include <linux/phy.h> + +#include "aquantia.h" + +int aqr_phy_led_brightness_set(struct phy_device *phydev, + u8 index, enum led_brightness value) +{ + if (index >= AQR_MAX_LEDS) + return -EINVAL; + + return phy_modify_mmd(phydev, MDIO_MMD_VEND1, AQR_LED_PROV(index), + VEND1_GLOBAL_LED_PROV_LINK_MASK | + VEND1_GLOBAL_LED_PROV_FORCE_ON | + VEND1_GLOBAL_LED_PROV_RX_ACT | + VEND1_GLOBAL_LED_PROV_TX_ACT, + value ? VEND1_GLOBAL_LED_PROV_FORCE_ON : 0); +} + +static const unsigned long supported_triggers = (BIT(TRIGGER_NETDEV_LINK) | + BIT(TRIGGER_NETDEV_LINK_100) | + BIT(TRIGGER_NETDEV_LINK_1000) | + BIT(TRIGGER_NETDEV_LINK_2500) | + BIT(TRIGGER_NETDEV_LINK_5000) | + BIT(TRIGGER_NETDEV_LINK_10000) | + BIT(TRIGGER_NETDEV_RX) | + BIT(TRIGGER_NETDEV_TX)); + +int aqr_phy_led_hw_is_supported(struct phy_device *phydev, u8 index, + unsigned long rules) +{ + if (index >= AQR_MAX_LEDS) + return -EINVAL; + + /* All combinations of the supported triggers are allowed */ + if (rules & ~supported_triggers) + return -EOPNOTSUPP; + + return 0; +} + +int aqr_phy_led_hw_control_get(struct phy_device *phydev, u8 index, + unsigned long *rules) +{ + int val; + + if (index >= AQR_MAX_LEDS) + return -EINVAL; + + val = phy_read_mmd(phydev, MDIO_MMD_VEND1, AQR_LED_PROV(index)); + if (val < 0) + return val; + + *rules = 0; + if (val & VEND1_GLOBAL_LED_PROV_LINK100) + *rules |= BIT(TRIGGER_NETDEV_LINK_100); + + if (val & VEND1_GLOBAL_LED_PROV_LINK1000) + *rules |= BIT(TRIGGER_NETDEV_LINK_1000); + + if (val & VEND1_GLOBAL_LED_PROV_LINK2500) + *rules |= BIT(TRIGGER_NETDEV_LINK_2500); + + if (val & VEND1_GLOBAL_LED_PROV_LINK5000) + *rules |= BIT(TRIGGER_NETDEV_LINK_5000); + + if (val & VEND1_GLOBAL_LED_PROV_LINK10000) + *rules |= BIT(TRIGGER_NETDEV_LINK_10000); + + if (val & VEND1_GLOBAL_LED_PROV_RX_ACT) + *rules |= BIT(TRIGGER_NETDEV_RX); + + if (val & VEND1_GLOBAL_LED_PROV_TX_ACT) + *rules |= BIT(TRIGGER_NETDEV_TX); + + return 0; +} + +int aqr_phy_led_hw_control_set(struct phy_device *phydev, u8 index, + unsigned long rules) +{ + u16 val = 0; + + if (index >= AQR_MAX_LEDS) + return -EINVAL; + + if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK))) + val |= VEND1_GLOBAL_LED_PROV_LINK100; + + if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK))) + val |= VEND1_GLOBAL_LED_PROV_LINK1000; + + if (rules & (BIT(TRIGGER_NETDEV_LINK_2500) | BIT(TRIGGER_NETDEV_LINK))) + val |= VEND1_GLOBAL_LED_PROV_LINK2500; + + if (rules & (BIT(TRIGGER_NETDEV_LINK_5000) | BIT(TRIGGER_NETDEV_LINK))) + val |= VEND1_GLOBAL_LED_PROV_LINK5000; + + if (rules & (BIT(TRIGGER_NETDEV_LINK_10000) | BIT(TRIGGER_NETDEV_LINK))) + val |= VEND1_GLOBAL_LED_PROV_LINK10000; + + if (rules & BIT(TRIGGER_NETDEV_RX)) + val |= VEND1_GLOBAL_LED_PROV_RX_ACT; + + if (rules & BIT(TRIGGER_NETDEV_TX)) + val |= VEND1_GLOBAL_LED_PROV_TX_ACT; + + return phy_modify_mmd(phydev, MDIO_MMD_VEND1, AQR_LED_PROV(index), + VEND1_GLOBAL_LED_PROV_LINK_MASK | + VEND1_GLOBAL_LED_PROV_FORCE_ON | + VEND1_GLOBAL_LED_PROV_RX_ACT | + VEND1_GLOBAL_LED_PROV_TX_ACT, val); +} + +int aqr_phy_led_active_low_set(struct phy_device *phydev, int index, bool enable) +{ + return phy_modify_mmd(phydev, MDIO_MMD_VEND1, AQR_LED_DRIVE(index), + VEND1_GLOBAL_LED_DRIVE_VDD, enable); +} + +int aqr_phy_led_polarity_set(struct phy_device *phydev, int index, unsigned long modes) +{ + struct aqr107_priv *priv = phydev->priv; + bool active_low = false; + u32 mode; + + if (index >= AQR_MAX_LEDS) + return -EINVAL; + + for_each_set_bit(mode, &modes, __PHY_LED_MODES_NUM) { + switch (mode) { + case PHY_LED_ACTIVE_LOW: + active_low = true; + break; + default: + return -EINVAL; + } + } + + /* Save LED driver vdd state to restore on SW reset */ + if (active_low) + priv->leds_active_low |= BIT(index); + + return aqr_phy_led_active_low_set(phydev, index, active_low); +} |