diff options
| -rw-r--r-- | drivers/net/ethernet/realtek/Makefile | 3 | ||||
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169.h | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_leds.c | 157 | ||||
| -rw-r--r-- | drivers/net/ethernet/realtek/r8169_main.c | 65 |
4 files changed, 232 insertions, 0 deletions
diff --git a/drivers/net/ethernet/realtek/Makefile b/drivers/net/ethernet/realtek/Makefile index 2e1d78b106b0..adff9ebfbf2c 100644 --- a/drivers/net/ethernet/realtek/Makefile +++ b/drivers/net/ethernet/realtek/Makefile @@ -7,4 +7,7 @@ obj-$(CONFIG_8139CP) += 8139cp.o obj-$(CONFIG_8139TOO) += 8139too.o obj-$(CONFIG_ATP) += atp.o r8169-objs += r8169_main.o r8169_firmware.o r8169_phy_config.o +ifdef CONFIG_LEDS_TRIGGER_NETDEV +r8169-objs += r8169_leds.o +endif obj-$(CONFIG_R8169) += r8169.o diff --git a/drivers/net/ethernet/realtek/r8169.h b/drivers/net/ethernet/realtek/r8169.h index 55ef8251feb5..81567fcf3957 100644 --- a/drivers/net/ethernet/realtek/r8169.h +++ b/drivers/net/ethernet/realtek/r8169.h @@ -8,6 +8,7 @@ * See MAINTAINERS file for support contact information. */ +#include <linux/netdevice.h> #include <linux/types.h> #include <linux/phy.h> @@ -77,3 +78,9 @@ u16 rtl8168h_2_get_adc_bias_ioffset(struct rtl8169_private *tp); u8 rtl8168d_efuse_read(struct rtl8169_private *tp, int reg_addr); void r8169_hw_phy_config(struct rtl8169_private *tp, struct phy_device *phydev, enum mac_version ver); + +void r8169_get_led_name(struct rtl8169_private *tp, int idx, + char *buf, int buf_len); +int rtl8168_get_led_mode(struct rtl8169_private *tp); +int rtl8168_led_mod_ctrl(struct rtl8169_private *tp, u16 mask, u16 val); +void rtl8168_init_leds(struct net_device *ndev); diff --git a/drivers/net/ethernet/realtek/r8169_leds.c b/drivers/net/ethernet/realtek/r8169_leds.c new file mode 100644 index 000000000000..007d077edcad --- /dev/null +++ b/drivers/net/ethernet/realtek/r8169_leds.c @@ -0,0 +1,157 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* r8169_leds.c: Realtek 8169/8168/8101/8125 ethernet driver. + * + * Copyright (c) 2023 Heiner Kallweit <hkallweit1@gmail.com> + * + * See MAINTAINERS file for support contact information. + */ + +#include <linux/leds.h> +#include <linux/netdevice.h> +#include <uapi/linux/uleds.h> + +#include "r8169.h" + +#define RTL8168_LED_CTRL_OPTION2 BIT(15) +#define RTL8168_LED_CTRL_ACT BIT(3) +#define RTL8168_LED_CTRL_LINK_1000 BIT(2) +#define RTL8168_LED_CTRL_LINK_100 BIT(1) +#define RTL8168_LED_CTRL_LINK_10 BIT(0) + +#define RTL8168_NUM_LEDS 3 + +#define RTL8168_SUPPORTED_MODES \ + (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK_100) | \ + BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_RX) | \ + BIT(TRIGGER_NETDEV_TX)) + +struct r8169_led_classdev { + struct led_classdev led; + struct net_device *ndev; + int index; +}; + +#define lcdev_to_r8169_ldev(lcdev) container_of(lcdev, struct r8169_led_classdev, led) + +static int rtl8168_led_hw_control_is_supported(struct led_classdev *led_cdev, + unsigned long flags) +{ + struct r8169_led_classdev *ldev = lcdev_to_r8169_ldev(led_cdev); + struct rtl8169_private *tp = netdev_priv(ldev->ndev); + int shift = ldev->index * 4; + bool rx, tx; + + if (flags & ~RTL8168_SUPPORTED_MODES) + goto nosupp; + + rx = flags & BIT(TRIGGER_NETDEV_RX); + tx = flags & BIT(TRIGGER_NETDEV_TX); + if (rx != tx) + goto nosupp; + + return 0; + +nosupp: + /* Switch LED off to indicate that mode isn't supported */ + rtl8168_led_mod_ctrl(tp, 0x000f << shift, 0); + return -EOPNOTSUPP; +} + +static int rtl8168_led_hw_control_set(struct led_classdev *led_cdev, + unsigned long flags) +{ + struct r8169_led_classdev *ldev = lcdev_to_r8169_ldev(led_cdev); + struct rtl8169_private *tp = netdev_priv(ldev->ndev); + int shift = ldev->index * 4; + u16 mode = 0; + + if (flags & BIT(TRIGGER_NETDEV_LINK_10)) + mode |= RTL8168_LED_CTRL_LINK_10; + if (flags & BIT(TRIGGER_NETDEV_LINK_100)) + mode |= RTL8168_LED_CTRL_LINK_100; + if (flags & BIT(TRIGGER_NETDEV_LINK_1000)) + mode |= RTL8168_LED_CTRL_LINK_1000; + if (flags & BIT(TRIGGER_NETDEV_TX)) + mode |= RTL8168_LED_CTRL_ACT; + + return rtl8168_led_mod_ctrl(tp, 0x000f << shift, mode << shift); +} + +static int rtl8168_led_hw_control_get(struct led_classdev *led_cdev, + unsigned long *flags) +{ + struct r8169_led_classdev *ldev = lcdev_to_r8169_ldev(led_cdev); + struct rtl8169_private *tp = netdev_priv(ldev->ndev); + int shift = ldev->index * 4; + int mode; + + mode = rtl8168_get_led_mode(tp); + if (mode < 0) + return mode; + + if (mode & RTL8168_LED_CTRL_OPTION2) { + rtl8168_led_mod_ctrl(tp, RTL8168_LED_CTRL_OPTION2, 0); + netdev_notice(ldev->ndev, "Deactivating unsupported Option2 LED mode\n"); + } + + mode = (mode >> shift) & 0x000f; + + if (mode & RTL8168_LED_CTRL_ACT) + *flags |= BIT(TRIGGER_NETDEV_TX) | BIT(TRIGGER_NETDEV_RX); + + if (mode & RTL8168_LED_CTRL_LINK_10) + *flags |= BIT(TRIGGER_NETDEV_LINK_10); + if (mode & RTL8168_LED_CTRL_LINK_100) + *flags |= BIT(TRIGGER_NETDEV_LINK_100); + if (mode & RTL8168_LED_CTRL_LINK_1000) + *flags |= BIT(TRIGGER_NETDEV_LINK_1000); + + return 0; +} + +static struct device * + r8169_led_hw_control_get_device(struct led_classdev *led_cdev) +{ + struct r8169_led_classdev *ldev = lcdev_to_r8169_ldev(led_cdev); + + return &ldev->ndev->dev; +} + +static void rtl8168_setup_ldev(struct r8169_led_classdev *ldev, + struct net_device *ndev, int index) +{ + struct rtl8169_private *tp = netdev_priv(ndev); + struct led_classdev *led_cdev = &ldev->led; + char led_name[LED_MAX_NAME_SIZE]; + + ldev->ndev = ndev; + ldev->index = index; + + r8169_get_led_name(tp, index, led_name, LED_MAX_NAME_SIZE); + led_cdev->name = led_name; + led_cdev->default_trigger = "netdev"; + led_cdev->hw_control_trigger = "netdev"; + led_cdev->flags |= LED_RETAIN_AT_SHUTDOWN; + led_cdev->hw_control_is_supported = rtl8168_led_hw_control_is_supported; + led_cdev->hw_control_set = rtl8168_led_hw_control_set; + led_cdev->hw_control_get = rtl8168_led_hw_control_get; + led_cdev->hw_control_get_device = r8169_led_hw_control_get_device; + + /* ignore errors */ + devm_led_classdev_register(&ndev->dev, led_cdev); +} + +void rtl8168_init_leds(struct net_device *ndev) +{ + /* bind resource mgmt to netdev */ + struct device *dev = &ndev->dev; + struct r8169_led_classdev *leds; + int i; + + leds = devm_kcalloc(dev, RTL8168_NUM_LEDS, sizeof(*leds), GFP_KERNEL); + if (!leds) + return; + + for (i = 0; i < RTL8168_NUM_LEDS; i++) + rtl8168_setup_ldev(leds + i, ndev, i); +} diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index c07f82ca9755..c6492096aef7 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -285,6 +285,7 @@ enum rtl8168_8101_registers { }; enum rtl8168_registers { + LED_CTRL = 0x18, LED_FREQ = 0x1a, EEE_LED = 0x1b, ERIDR = 0x70, @@ -616,6 +617,7 @@ struct rtl8169_private { raw_spinlock_t config25_lock; raw_spinlock_t mac_ocp_lock; + struct mutex led_lock; /* serialize LED ctrl RMW access */ raw_spinlock_t cfg9346_usage_lock; int cfg9346_usage_count; @@ -788,6 +790,62 @@ static const struct rtl_cond name = { \ \ static bool name ## _check(struct rtl8169_private *tp) +int rtl8168_led_mod_ctrl(struct rtl8169_private *tp, u16 mask, u16 val) +{ + struct device *dev = tp_to_dev(tp); + int ret; + + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + return ret; + + mutex_lock(&tp->led_lock); + RTL_W16(tp, LED_CTRL, (RTL_R16(tp, LED_CTRL) & ~mask) | val); + mutex_unlock(&tp->led_lock); + + pm_runtime_put_sync(dev); + + return 0; +} + +int rtl8168_get_led_mode(struct rtl8169_private *tp) +{ + struct device *dev = tp_to_dev(tp); + int ret; + + ret = pm_runtime_resume_and_get(dev); + if (ret < 0) + return ret; + + ret = RTL_R16(tp, LED_CTRL); + + pm_runtime_put_sync(dev); + + return ret; +} + +void r8169_get_led_name(struct rtl8169_private *tp, int idx, + char *buf, int buf_len) +{ + struct pci_dev *pdev = tp->pci_dev; + char pdom[8], pfun[8]; + int domain; + + domain = pci_domain_nr(pdev->bus); + if (domain) + snprintf(pdom, sizeof(pdom), "P%d", domain); + else + pdom[0] = '\0'; + + if (pdev->multifunction) + snprintf(pfun, sizeof(pfun), "f%d", PCI_FUNC(pdev->devfn)); + else + pfun[0] = '\0'; + + snprintf(buf, buf_len, "en%sp%ds%d%s-%d::lan", pdom, pdev->bus->number, + PCI_SLOT(pdev->devfn), pfun, idx); +} + static void r8168fp_adjust_ocp_cmd(struct rtl8169_private *tp, u32 *cmd, int type) { /* based on RTL8168FP_OOBMAC_BASE in vendor driver */ @@ -5141,6 +5199,7 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) raw_spin_lock_init(&tp->cfg9346_usage_lock); raw_spin_lock_init(&tp->config25_lock); raw_spin_lock_init(&tp->mac_ocp_lock); + mutex_init(&tp->led_lock); dev->tstats = devm_netdev_alloc_pcpu_stats(&pdev->dev, struct pcpu_sw_netstats); @@ -5297,6 +5356,12 @@ static int rtl_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) return rc; +#if IS_REACHABLE(CONFIG_LEDS_CLASS) && IS_ENABLED(CONFIG_LEDS_TRIGGER_NETDEV) + if (tp->mac_version > RTL_GIGA_MAC_VER_06 && + tp->mac_version < RTL_GIGA_MAC_VER_61) + rtl8168_init_leds(dev); +#endif + netdev_info(dev, "%s, %pM, XID %03x, IRQ %d\n", rtl_chip_infos[chipset].name, dev->dev_addr, xid, tp->irq); |