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Date: Sat, 24 Jun 2023 22:56:29 +0200
From: Andrew Lunn <andrew@...n.ch>
To: netdev <netdev@...r.kernel.org>
Cc: Heiner Kallweit <hkallweit1@...il.com>,
Russell King <rmk+kernel@...linux.org.uk>,
Simon Horman <simon.horman@...igine.com>,
Christian Marangi <ansuelsmth@...il.com>,
Andrew Lunn <andrew@...n.ch>
Subject: [PATCH v2 net-next 3/3] net: phy: marvell: Add support for offloading LED blinking
Add the code needed to indicate if a given blinking pattern can be
offloaded, to offload a pattern and to try to return the current
pattern. It is expected that ledtrig-netdev will gain support for
other patterns, such as different link speeds etc. So the code is
over-engineers to make adding such additional patterns easy.
Reviewed-by: Simon Horman <simon.horman@...igine.com>
Signed-off-by: Andrew Lunn <andrew@...n.ch>
---
drivers/net/phy/marvell.c | 243 ++++++++++++++++++++++++++++++++++++++
1 file changed, 243 insertions(+)
diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 43b6cb725551..a443df3034f3 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -2893,6 +2893,234 @@ static int m88e1318_led_blink_set(struct phy_device *phydev, u8 index,
MII_88E1318S_PHY_LED_FUNC, reg);
}
+struct marvell_led_rules {
+ int mode;
+ unsigned long rules;
+};
+
+static const struct marvell_led_rules marvell_led0[] = {
+ {
+ .mode = 0,
+ .rules = BIT(TRIGGER_NETDEV_LINK),
+ },
+ {
+ .mode = 3,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 4,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 5,
+ .rules = BIT(TRIGGER_NETDEV_TX),
+ },
+ {
+ .mode = 8,
+ .rules = 0,
+ },
+};
+
+static const struct marvell_led_rules marvell_led1[] = {
+ {
+ .mode = 1,
+ .rules = (BIT(TRIGGER_NETDEV_LINK) |
+ BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 2,
+ .rules = (BIT(TRIGGER_NETDEV_LINK) |
+ BIT(TRIGGER_NETDEV_RX)),
+ },
+ {
+ .mode = 3,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 4,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 8,
+ .rules = 0,
+ },
+};
+
+static const struct marvell_led_rules marvell_led2[] = {
+ {
+ .mode = 0,
+ .rules = BIT(TRIGGER_NETDEV_LINK),
+ },
+ {
+ .mode = 1,
+ .rules = (BIT(TRIGGER_NETDEV_LINK) |
+ BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 3,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 4,
+ .rules = (BIT(TRIGGER_NETDEV_RX) |
+ BIT(TRIGGER_NETDEV_TX)),
+ },
+ {
+ .mode = 5,
+ .rules = BIT(TRIGGER_NETDEV_TX),
+ },
+ {
+ .mode = 8,
+ .rules = 0,
+ },
+};
+
+static int marvell_find_led_mode(unsigned long rules,
+ const struct marvell_led_rules *marvell_rules,
+ int count,
+ int *mode)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (marvell_rules[i].rules == rules) {
+ *mode = marvell_rules[i].mode;
+ return 0;
+ }
+ }
+ return -EOPNOTSUPP;
+}
+
+static int marvell_get_led_mode(u8 index, unsigned long rules, int *mode)
+{
+ int ret;
+
+ switch (index) {
+ case 0:
+ ret = marvell_find_led_mode(rules, marvell_led0,
+ ARRAY_SIZE(marvell_led0), mode);
+ break;
+ case 1:
+ ret = marvell_find_led_mode(rules, marvell_led1,
+ ARRAY_SIZE(marvell_led1), mode);
+ break;
+ case 2:
+ ret = marvell_find_led_mode(rules, marvell_led2,
+ ARRAY_SIZE(marvell_led2), mode);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int marvell_find_led_rules(unsigned long *rules,
+ const struct marvell_led_rules *marvell_rules,
+ int count,
+ int mode)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (marvell_rules[i].mode == mode) {
+ *rules = marvell_rules[i].rules;
+ return 0;
+ }
+ }
+ return -EOPNOTSUPP;
+}
+
+static int marvell_get_led_rules(u8 index, unsigned long *rules, int mode)
+{
+ int ret;
+
+ switch (index) {
+ case 0:
+ ret = marvell_find_led_rules(rules, marvell_led0,
+ ARRAY_SIZE(marvell_led0), mode);
+ break;
+ case 1:
+ ret = marvell_find_led_rules(rules, marvell_led1,
+ ARRAY_SIZE(marvell_led1), mode);
+ break;
+ case 2:
+ ret = marvell_find_led_rules(rules, marvell_led2,
+ ARRAY_SIZE(marvell_led2), mode);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return ret;
+}
+
+static int m88e1318_led_hw_is_supported(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ int mode, ret;
+
+ switch (index) {
+ case 0:
+ case 1:
+ case 2:
+ ret = marvell_get_led_mode(index, rules, &mode);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ return ret;
+}
+
+static int m88e1318_led_hw_control_set(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ int mode, ret, reg;
+
+ switch (index) {
+ case 0:
+ case 1:
+ case 2:
+ ret = marvell_get_led_mode(index, rules, &mode);
+ break;
+ default:
+ ret = -EINVAL;
+ }
+
+ if (ret < 0)
+ return ret;
+
+ reg = phy_read_paged(phydev, MII_MARVELL_LED_PAGE,
+ MII_88E1318S_PHY_LED_FUNC);
+ reg &= ~(0xf << (4 * index));
+ reg |= mode << (4 * index);
+ return phy_write_paged(phydev, MII_MARVELL_LED_PAGE,
+ MII_88E1318S_PHY_LED_FUNC, reg);
+}
+
+static int m88e1318_led_hw_control_get(struct phy_device *phydev, u8 index,
+ unsigned long *rules)
+{
+ int mode, reg;
+
+ if (index > 2)
+ return -EINVAL;
+
+ reg = phy_read_paged(phydev, MII_MARVELL_LED_PAGE,
+ MII_88E1318S_PHY_LED_FUNC);
+ mode = (reg >> (4 * index)) & 0xf;
+
+ return marvell_get_led_rules(index, rules, mode);
+}
+
static int marvell_probe(struct phy_device *phydev)
{
struct marvell_priv *priv;
@@ -3144,6 +3372,9 @@ static struct phy_driver marvell_drivers[] = {
.get_stats = marvell_get_stats,
.led_brightness_set = m88e1318_led_brightness_set,
.led_blink_set = m88e1318_led_blink_set,
+ .led_hw_is_supported = m88e1318_led_hw_is_supported,
+ .led_hw_control_set = m88e1318_led_hw_control_set,
+ .led_hw_control_get = m88e1318_led_hw_control_get,
},
{
.phy_id = MARVELL_PHY_ID_88E1145,
@@ -3252,6 +3483,9 @@ static struct phy_driver marvell_drivers[] = {
.cable_test_get_status = marvell_vct7_cable_test_get_status,
.led_brightness_set = m88e1318_led_brightness_set,
.led_blink_set = m88e1318_led_blink_set,
+ .led_hw_is_supported = m88e1318_led_hw_is_supported,
+ .led_hw_control_set = m88e1318_led_hw_control_set,
+ .led_hw_control_get = m88e1318_led_hw_control_get,
},
{
.phy_id = MARVELL_PHY_ID_88E1540,
@@ -3280,6 +3514,9 @@ static struct phy_driver marvell_drivers[] = {
.cable_test_get_status = marvell_vct7_cable_test_get_status,
.led_brightness_set = m88e1318_led_brightness_set,
.led_blink_set = m88e1318_led_blink_set,
+ .led_hw_is_supported = m88e1318_led_hw_is_supported,
+ .led_hw_control_set = m88e1318_led_hw_control_set,
+ .led_hw_control_get = m88e1318_led_hw_control_get,
},
{
.phy_id = MARVELL_PHY_ID_88E1545,
@@ -3308,6 +3545,9 @@ static struct phy_driver marvell_drivers[] = {
.cable_test_get_status = marvell_vct7_cable_test_get_status,
.led_brightness_set = m88e1318_led_brightness_set,
.led_blink_set = m88e1318_led_blink_set,
+ .led_hw_is_supported = m88e1318_led_hw_is_supported,
+ .led_hw_control_set = m88e1318_led_hw_control_set,
+ .led_hw_control_get = m88e1318_led_hw_control_get,
},
{
.phy_id = MARVELL_PHY_ID_88E3016,
@@ -3451,6 +3691,9 @@ static struct phy_driver marvell_drivers[] = {
.set_tunable = m88e1540_set_tunable,
.led_brightness_set = m88e1318_led_brightness_set,
.led_blink_set = m88e1318_led_blink_set,
+ .led_hw_is_supported = m88e1318_led_hw_is_supported,
+ .led_hw_control_set = m88e1318_led_hw_control_set,
+ .led_hw_control_get = m88e1318_led_hw_control_get,
},
};
--
2.40.1
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