From 40c7cdd3a521fa3281137ec0a182a4ae5b387856 Mon Sep 17 00:00:00 2001 From: Arne Fitzenreiter Date: Mon, 5 Nov 2012 11:21:53 +0100 Subject: [PATCH] kernel: readd ledtrig-netdev. --- .../kernel.config.armv5tel-ipfire-kirkwood | 4 +- .../kernel/kernel.config.armv5tel-ipfire-omap | 3 +- .../kernel/kernel.config.armv5tel-ipfire-rpi | 3 +- config/kernel/kernel.config.i586-ipfire | 3 +- config/kernel/kernel.config.i586-ipfire-pae | 3 +- .../rootfiles/common/armv5tel/linux-kirkwood | 3 +- config/rootfiles/common/armv5tel/linux-omap | 3 +- config/rootfiles/common/armv5tel/linux-rpi | 1 + config/rootfiles/common/i586/linux | 1 + config/rootfiles/packages/linux-pae | 1 + lfs/linux | 3 + .../linux-3.2.33-ledtrig-netdev-1.patch | 479 ++++++++++++++++++ 12 files changed, 500 insertions(+), 7 deletions(-) create mode 100644 src/patches/linux-3.2.33-ledtrig-netdev-1.patch diff --git a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood index eb40528c09..ead83d58e8 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-kirkwood +++ b/config/kernel/kernel.config.armv5tel-ipfire-kirkwood @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/arm 3.2.25 Kernel Configuration +# Linux/arm 3.2.33 Kernel Configuration # CONFIG_ARM=y CONFIG_SYS_SUPPORTS_APM_EMULATION=y @@ -2202,6 +2202,7 @@ CONFIG_I2C_VIAPRO=m # # I2C system bus drivers (mostly embedded / system-on-chip) # +CONFIG_I2C_DESIGNWARE_CORE=m CONFIG_I2C_DESIGNWARE_PCI=m CONFIG_I2C_GPIO=m CONFIG_I2C_INTEL_MID=m @@ -3572,6 +3573,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=y # # iptables trigger is under Netfilter config (LED target) # +CONFIG_LEDS_TRIGGER_NETDEV=m # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set CONFIG_RTC_LIB=y diff --git a/config/kernel/kernel.config.armv5tel-ipfire-omap b/config/kernel/kernel.config.armv5tel-ipfire-omap index fe943a302b..8765ae5b57 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-omap +++ b/config/kernel/kernel.config.armv5tel-ipfire-omap @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/arm 3.2.32 Kernel Configuration +# Linux/arm 3.2.33 Kernel Configuration # CONFIG_ARM=y CONFIG_HAVE_PWM=y @@ -2928,6 +2928,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # +CONFIG_LEDS_TRIGGER_NETDEV=m # CONFIG_ACCESSIBILITY is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y diff --git a/config/kernel/kernel.config.armv5tel-ipfire-rpi b/config/kernel/kernel.config.armv5tel-ipfire-rpi index e19ea4daac..2cef33defa 100644 --- a/config/kernel/kernel.config.armv5tel-ipfire-rpi +++ b/config/kernel/kernel.config.armv5tel-ipfire-rpi @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/arm 3.2.32 Kernel Configuration +# Linux/arm 3.2.33 Kernel Configuration # CONFIG_ARM=y CONFIG_SYS_SUPPORTS_APM_EMULATION=y @@ -2566,6 +2566,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # +CONFIG_LEDS_TRIGGER_NETDEV=m # CONFIG_ACCESSIBILITY is not set CONFIG_RTC_LIB=y CONFIG_RTC_CLASS=y diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire index 3b85773305..97cc1194e4 100644 --- a/config/kernel/kernel.config.i586-ipfire +++ b/config/kernel/kernel.config.i586-ipfire @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/i386 3.2.32 Kernel Configuration +# Linux/i386 3.2.33 Kernel Configuration # # CONFIG_64BIT is not set CONFIG_X86_32=y @@ -3879,6 +3879,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # +CONFIG_LEDS_TRIGGER_NETDEV=m # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set # CONFIG_EDAC is not set diff --git a/config/kernel/kernel.config.i586-ipfire-pae b/config/kernel/kernel.config.i586-ipfire-pae index d56e066ff9..e50ea0b2fd 100644 --- a/config/kernel/kernel.config.i586-ipfire-pae +++ b/config/kernel/kernel.config.i586-ipfire-pae @@ -1,6 +1,6 @@ # # Automatically generated file; DO NOT EDIT. -# Linux/i386 3.2.32 Kernel Configuration +# Linux/i386 3.2.33 Kernel Configuration # # CONFIG_64BIT is not set CONFIG_X86_32=y @@ -3951,6 +3951,7 @@ CONFIG_LEDS_TRIGGER_DEFAULT_ON=m # # iptables trigger is under Netfilter config (LED target) # +CONFIG_LEDS_TRIGGER_NETDEV=m # CONFIG_ACCESSIBILITY is not set # CONFIG_INFINIBAND is not set # CONFIG_EDAC is not set diff --git a/config/rootfiles/common/armv5tel/linux-kirkwood b/config/rootfiles/common/armv5tel/linux-kirkwood index 6f7a8dc394..404d7af786 100644 --- a/config/rootfiles/common/armv5tel/linux-kirkwood +++ b/config/rootfiles/common/armv5tel/linux-kirkwood @@ -3,7 +3,7 @@ boot/System.map-KVER-ipfire-kirkwood boot/config-KVER-ipfire-kirkwood boot/uImage-ipfire-kirkwood boot/vmlinuz-KVER-ipfire-kirkwood -boot/vmlinuz-ipfire-kirkwood +#boot/vmlinuz-ipfire-kirkwood etc/modprobe.d/framebuffer etc/modprobe.d/ipv6 etc/modprobe.d/isdn @@ -563,6 +563,7 @@ lib/modules/KVER-ipfire-kirkwood #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/leds/ledtrig-backlight.ko #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/leds/ledtrig-gpio.ko #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/leds/ledtrig-heartbeat.ko +#lib/modules/KVER-ipfire-kirkwood/kernel/drivers/leds/ledtrig-netdev.ko #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/leds/ledtrig-timer.ko #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/md #lib/modules/KVER-ipfire-kirkwood/kernel/drivers/md/dm-bufio.ko diff --git a/config/rootfiles/common/armv5tel/linux-omap b/config/rootfiles/common/armv5tel/linux-omap index a0201e9c55..0311524609 100644 --- a/config/rootfiles/common/armv5tel/linux-omap +++ b/config/rootfiles/common/armv5tel/linux-omap @@ -3,7 +3,7 @@ boot/System.map-KVER-ipfire-omap boot/config-KVER-ipfire-omap boot/uImage-ipfire-omap boot/vmlinuz-KVER-ipfire-omap -boot/vmlinuz-ipfire-omap +#boot/vmlinuz-ipfire-omap lib/modules/KVER-ipfire-omap #lib/modules/KVER-ipfire-omap/build #lib/modules/KVER-ipfire-omap/kernel @@ -380,6 +380,7 @@ lib/modules/KVER-ipfire-omap #lib/modules/KVER-ipfire-omap/kernel/drivers/leds/ledtrig-backlight.ko #lib/modules/KVER-ipfire-omap/kernel/drivers/leds/ledtrig-default-on.ko #lib/modules/KVER-ipfire-omap/kernel/drivers/leds/ledtrig-gpio.ko +#lib/modules/KVER-ipfire-omap/kernel/drivers/leds/ledtrig-netdev.ko #lib/modules/KVER-ipfire-omap/kernel/drivers/leds/ledtrig-timer.ko #lib/modules/KVER-ipfire-omap/kernel/drivers/md #lib/modules/KVER-ipfire-omap/kernel/drivers/md/dm-bufio.ko diff --git a/config/rootfiles/common/armv5tel/linux-rpi b/config/rootfiles/common/armv5tel/linux-rpi index 37e49dd666..ee4668d0ea 100644 --- a/config/rootfiles/common/armv5tel/linux-rpi +++ b/config/rootfiles/common/armv5tel/linux-rpi @@ -327,6 +327,7 @@ lib/modules/KVER-ipfire-rpi #lib/modules/KVER-ipfire-rpi/kernel/drivers/leds/ledtrig-default-on.ko #lib/modules/KVER-ipfire-rpi/kernel/drivers/leds/ledtrig-gpio.ko #lib/modules/KVER-ipfire-rpi/kernel/drivers/leds/ledtrig-heartbeat.ko +#lib/modules/KVER-ipfire-rpi/kernel/drivers/leds/ledtrig-netdev.ko #lib/modules/KVER-ipfire-rpi/kernel/drivers/leds/ledtrig-timer.ko #lib/modules/KVER-ipfire-rpi/kernel/drivers/md #lib/modules/KVER-ipfire-rpi/kernel/drivers/md/dm-bufio.ko diff --git a/config/rootfiles/common/i586/linux b/config/rootfiles/common/i586/linux index 0d91e1f14b..0f5498a292 100644 --- a/config/rootfiles/common/i586/linux +++ b/config/rootfiles/common/i586/linux @@ -715,6 +715,7 @@ lib/modules/KVER-ipfire #lib/modules/KVER-ipfire/kernel/drivers/leds/ledtrig-default-on.ko #lib/modules/KVER-ipfire/kernel/drivers/leds/ledtrig-gpio.ko #lib/modules/KVER-ipfire/kernel/drivers/leds/ledtrig-heartbeat.ko +#lib/modules/KVER-ipfire/kernel/drivers/leds/ledtrig-netdev.ko #lib/modules/KVER-ipfire/kernel/drivers/leds/ledtrig-timer.ko #lib/modules/KVER-ipfire/kernel/drivers/lguest #lib/modules/KVER-ipfire/kernel/drivers/lguest/lg.ko diff --git a/config/rootfiles/packages/linux-pae b/config/rootfiles/packages/linux-pae index 08f1afcd07..7bb598d42a 100644 --- a/config/rootfiles/packages/linux-pae +++ b/config/rootfiles/packages/linux-pae @@ -718,6 +718,7 @@ lib/modules/KVER-ipfire-pae #lib/modules/KVER-ipfire-pae/kernel/drivers/leds/ledtrig-default-on.ko #lib/modules/KVER-ipfire-pae/kernel/drivers/leds/ledtrig-gpio.ko #lib/modules/KVER-ipfire-pae/kernel/drivers/leds/ledtrig-heartbeat.ko +#lib/modules/KVER-ipfire-pae/kernel/drivers/leds/ledtrig-netdev.ko #lib/modules/KVER-ipfire-pae/kernel/drivers/leds/ledtrig-timer.ko #lib/modules/KVER-ipfire-pae/kernel/drivers/lguest #lib/modules/KVER-ipfire-pae/kernel/drivers/lguest/lg.ko diff --git a/lfs/linux b/lfs/linux index fce7ec12c8..d9e617a6d0 100644 --- a/lfs/linux +++ b/lfs/linux @@ -120,6 +120,9 @@ $(TARGET) : $(patsubst %,$(DIR_DL)/%,$(objects)) # Layer7-patch cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/netfilter_layer7_2.22_kernel3.0.patch + # Add LED trigger + cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-3.2.33-ledtrig-netdev-1.patch + # Fix uevent PHYSDEVDRIVER # cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_ipg-fix-driver-name.patch cd $(DIR_APP) && patch -Np1 < $(DIR_SRC)/src/patches/linux-2.6.32.27_mcs7830-fix-driver-name.patch diff --git a/src/patches/linux-3.2.33-ledtrig-netdev-1.patch b/src/patches/linux-3.2.33-ledtrig-netdev-1.patch new file mode 100644 index 0000000000..f42ca737dd --- /dev/null +++ b/src/patches/linux-3.2.33-ledtrig-netdev-1.patch @@ -0,0 +1,479 @@ +diff -Naur linux-3.2.33.org/drivers/leds/Kconfig linux-3.2.33/drivers/leds/Kconfig +--- linux-3.2.33.org/drivers/leds/Kconfig 2012-10-31 00:27:11.000000000 +0100 ++++ linux-3.2.33/drivers/leds/Kconfig 2012-11-04 12:47:10.661589825 +0100 +@@ -457,4 +457,11 @@ + comment "iptables trigger is under Netfilter config (LED target)" + depends on LEDS_TRIGGERS + ++config LEDS_TRIGGER_NETDEV ++ tristate "LED Netdev Trigger" ++ depends on LEDS_TRIGGERS ++ help ++ This allows LEDs to be controlled by network device activity. ++ If unsure, say Y. ++ + endif # NEW_LEDS +diff -Naur linux-3.2.33.org/drivers/leds/ledtrig-netdev.c linux-3.2.33/drivers/leds/ledtrig-netdev.c +--- linux-3.2.33.org/drivers/leds/ledtrig-netdev.c 1970-01-01 01:00:00.000000000 +0100 ++++ linux-3.2.33/drivers/leds/ledtrig-netdev.c 2012-11-04 13:43:51.414865799 +0100 +@@ -0,0 +1,452 @@ ++/* ++ * LED Kernel Netdev Trigger ++ * ++ * Toggles the LED to reflect the link and traffic state of a named net device ++ * ++ * Copyright 2007 Oliver Jowett ++ * ++ * Derived from ledtrig-timer.c which is: ++ * Copyright 2005-2006 Openedhand Ltd. ++ * Author: Richard Purdie ++ * ++ * This program is free software; you can redistribute it and/or modify ++ * it under the terms of the GNU General Public License version 2 as ++ * published by the Free Software Foundation. ++ * ++ */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) ++#include ++#endif ++ ++#include "leds.h" ++ ++/* ++ * Configurable sysfs attributes: ++ * ++ * device_name - network device name to monitor ++ * ++ * interval - duration of LED blink, in milliseconds ++ * ++ * mode - either "none" (LED is off) or a space separated list of one or more of: ++ * link: LED's normal state reflects whether the link is up (has carrier) or not ++ * tx: LED blinks on transmitted data ++ * rx: LED blinks on receive data ++ * ++ * Some suggestions: ++ * ++ * Simple link status LED: ++ * $ echo netdev >someled/trigger ++ * $ echo eth0 >someled/device_name ++ * $ echo link >someled/mode ++ * ++ * Ethernet-style link/activity LED: ++ * $ echo netdev >someled/trigger ++ * $ echo eth0 >someled/device_name ++ * $ echo "link tx rx" >someled/mode ++ * ++ * Modem-style tx/rx LEDs: ++ * $ echo netdev >led1/trigger ++ * $ echo ppp0 >led1/device_name ++ * $ echo tx >led1/mode ++ * $ echo netdev >led2/trigger ++ * $ echo ppp0 >led2/device_name ++ * $ echo rx >led2/mode ++ * ++ */ ++ ++#define MODE_LINK 1 ++#define MODE_TX 2 ++#define MODE_RX 4 ++ ++struct led_netdev_data { ++ rwlock_t lock; ++ ++ struct timer_list timer; ++ struct notifier_block notifier; ++ ++ struct led_classdev *led_cdev; ++ struct net_device *net_dev; ++ ++ char device_name[IFNAMSIZ]; ++ unsigned interval; ++ unsigned mode; ++ unsigned link_up; ++ unsigned last_activity; ++}; ++ ++static void set_baseline_state(struct led_netdev_data *trigger_data) ++{ ++ if ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) ++ led_set_brightness(trigger_data->led_cdev, LED_FULL); ++ else ++ led_set_brightness(trigger_data->led_cdev, LED_OFF); ++ ++ if ((trigger_data->mode & (MODE_TX | MODE_RX)) != 0 && trigger_data->link_up) ++ mod_timer(&trigger_data->timer, jiffies + trigger_data->interval); ++ else ++ del_timer(&trigger_data->timer); ++} ++ ++static ssize_t led_device_name_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ ++ read_lock(&trigger_data->lock); ++ sprintf(buf, "%s\n", trigger_data->device_name); ++ read_unlock(&trigger_data->lock); ++ ++ return strlen(buf) + 1; ++} ++ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,21) ++extern struct net init_net; ++#endif ++ ++static ssize_t led_device_name_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ ++ if (size < 0 || size >= IFNAMSIZ) ++ return -EINVAL; ++ ++ write_lock(&trigger_data->lock); ++ ++ strcpy(trigger_data->device_name, buf); ++ if (size > 0 && trigger_data->device_name[size-1] == '\n') ++ trigger_data->device_name[size-1] = 0; ++ ++ if (trigger_data->device_name[0] != 0) { ++ /* check for existing device to update from */ ++#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,26) ++ trigger_data->net_dev = dev_get_by_name(&init_net, trigger_data->device_name); ++#else ++ trigger_data->net_dev = dev_get_by_name(trigger_data->device_name); ++#endif ++ if (trigger_data->net_dev != NULL) ++ trigger_data->link_up = (dev_get_flags(trigger_data->net_dev) & IFF_LOWER_UP) != 0; ++ set_baseline_state(trigger_data); /* updates LEDs, may start timers */ ++ } ++ ++ write_unlock(&trigger_data->lock); ++ return size; ++} ++ ++static DEVICE_ATTR(device_name, 0644, led_device_name_show, led_device_name_store); ++ ++static ssize_t led_mode_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ ++ read_lock(&trigger_data->lock); ++ ++ if (trigger_data->mode == 0) { ++ strcpy(buf, "none\n"); ++ } else { ++ if (trigger_data->mode & MODE_LINK) ++ strcat(buf, "link "); ++ if (trigger_data->mode & MODE_TX) ++ strcat(buf, "tx "); ++ if (trigger_data->mode & MODE_RX) ++ strcat(buf, "rx "); ++ strcat(buf, "\n"); ++ } ++ ++ read_unlock(&trigger_data->lock); ++ ++ return strlen(buf)+1; ++} ++ ++static ssize_t led_mode_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ char copybuf[1024]; ++ int new_mode = -1; ++ char *p, *token; ++ ++ /* take a copy since we don't want to trash the inbound buffer when using strsep */ ++ strncpy(copybuf, buf, sizeof(copybuf)); ++ copybuf[1023] = 0; ++ p = copybuf; ++ ++ while ((token = strsep(&p, " \t\n")) != NULL) { ++ if (!*token) ++ continue; ++ ++ if (new_mode == -1) ++ new_mode = 0; ++ ++ if (!strcmp(token, "none")) ++ new_mode = 0; ++ else if (!strcmp(token, "tx")) ++ new_mode |= MODE_TX; ++ else if (!strcmp(token, "rx")) ++ new_mode |= MODE_RX; ++ else if (!strcmp(token, "link")) ++ new_mode |= MODE_LINK; ++ else ++ return -EINVAL; ++ } ++ ++ if (new_mode == -1) ++ return -EINVAL; ++ ++ write_lock(&trigger_data->lock); ++ trigger_data->mode = new_mode; ++ set_baseline_state(trigger_data); ++ write_unlock(&trigger_data->lock); ++ ++ return size; ++} ++ ++static DEVICE_ATTR(mode, 0644, led_mode_show, led_mode_store); ++ ++static ssize_t led_interval_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ ++ read_lock(&trigger_data->lock); ++ sprintf(buf, "%u\n", jiffies_to_msecs(trigger_data->interval)); ++ read_unlock(&trigger_data->lock); ++ ++ return strlen(buf) + 1; ++} ++ ++static ssize_t led_interval_store(struct device *dev, ++ struct device_attribute *attr, const char *buf, size_t size) ++{ ++ struct led_classdev *led_cdev = dev_get_drvdata(dev); ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ int ret = -EINVAL; ++ char *after; ++ unsigned long value = simple_strtoul(buf, &after, 10); ++ size_t count = after - buf; ++ ++ if (*after && isspace(*after)) ++ count++; ++ ++ /* impose some basic bounds on the timer interval */ ++ if (count == size && value >= 5 && value <= 10000) { ++ write_lock(&trigger_data->lock); ++ trigger_data->interval = msecs_to_jiffies(value); ++ set_baseline_state(trigger_data); // resets timer ++ write_unlock(&trigger_data->lock); ++ ret = count; ++ } ++ ++ return ret; ++} ++ ++static DEVICE_ATTR(interval, 0644, led_interval_show, led_interval_store); ++ ++static int netdev_trig_notify(struct notifier_block *nb, ++ unsigned long evt, ++ void *dv) ++{ ++ struct net_device *dev = dv; ++ struct led_netdev_data *trigger_data = container_of(nb, struct led_netdev_data, notifier); ++ ++ if (evt != NETDEV_UP && evt != NETDEV_DOWN && evt != NETDEV_CHANGE && evt != NETDEV_REGISTER && evt != NETDEV_UNREGISTER) ++ return NOTIFY_DONE; ++ ++ write_lock(&trigger_data->lock); ++ ++ if (strcmp(dev->name, trigger_data->device_name)) ++ goto done; ++ ++ if (evt == NETDEV_REGISTER) { ++ if (trigger_data->net_dev != NULL) ++ dev_put(trigger_data->net_dev); ++ dev_hold(dev); ++ trigger_data->net_dev = dev; ++ trigger_data->link_up = 0; ++ goto done; ++ } ++ ++ if (evt == NETDEV_UNREGISTER && trigger_data->net_dev != NULL) { ++ dev_put(trigger_data->net_dev); ++ trigger_data->net_dev = NULL; ++ goto done; ++ } ++ ++ /* UP / DOWN / CHANGE */ ++ ++ trigger_data->link_up = (evt != NETDEV_DOWN && netif_carrier_ok(dev)); ++ set_baseline_state(trigger_data); ++ ++done: ++ write_unlock(&trigger_data->lock); ++ return NOTIFY_DONE; ++} ++ ++/* here's the real work! */ ++static void netdev_trig_timer(unsigned long arg) ++{ ++ struct led_netdev_data *trigger_data = (struct led_netdev_data *)arg; ++ struct rtnl_link_stats64 *dev_stats; ++ unsigned new_activity; ++ struct rtnl_link_stats64 temp; ++ ++ write_lock(&trigger_data->lock); ++ ++ if (!trigger_data->link_up || !trigger_data->net_dev || (trigger_data->mode & (MODE_TX | MODE_RX)) == 0) { ++ /* we don't need to do timer work, just reflect link state. */ ++ led_set_brightness(trigger_data->led_cdev, ((trigger_data->mode & MODE_LINK) != 0 && trigger_data->link_up) ? LED_FULL : LED_OFF); ++ goto no_restart; ++ } ++ ++ dev_stats = dev_get_stats(trigger_data->net_dev, &temp); ++ new_activity = ++ ((trigger_data->mode & MODE_TX) ? dev_stats->tx_packets : 0) + ++ ((trigger_data->mode & MODE_RX) ? dev_stats->rx_packets : 0); ++ ++ if (trigger_data->mode & MODE_LINK) { ++ /* base state is ON (link present) */ ++ /* if there's no link, we don't get this far and the LED is off */ ++ ++ /* OFF -> ON always */ ++ /* ON -> OFF on activity */ ++ if (trigger_data->led_cdev->brightness == LED_OFF) { ++ led_set_brightness(trigger_data->led_cdev, LED_FULL); ++ } else if (trigger_data->last_activity != new_activity) { ++ led_set_brightness(trigger_data->led_cdev, LED_OFF); ++ } ++ } else { ++ /* base state is OFF */ ++ /* ON -> OFF always */ ++ /* OFF -> ON on activity */ ++ if (trigger_data->led_cdev->brightness == LED_FULL) { ++ led_set_brightness(trigger_data->led_cdev, LED_OFF); ++ } else if (trigger_data->last_activity != new_activity) { ++ led_set_brightness(trigger_data->led_cdev, LED_FULL); ++ } ++ } ++ ++ trigger_data->last_activity = new_activity; ++ mod_timer(&trigger_data->timer, jiffies + trigger_data->interval); ++ ++no_restart: ++ write_unlock(&trigger_data->lock); ++} ++ ++static void netdev_trig_activate(struct led_classdev *led_cdev) ++{ ++ struct led_netdev_data *trigger_data; ++ int rc; ++ ++ trigger_data = kzalloc(sizeof(struct led_netdev_data), GFP_KERNEL); ++ if (!trigger_data) ++ return; ++ ++ rwlock_init(&trigger_data->lock); ++ ++ trigger_data->notifier.notifier_call = netdev_trig_notify; ++ trigger_data->notifier.priority = 10; ++ ++ setup_timer(&trigger_data->timer, netdev_trig_timer, (unsigned long) trigger_data); ++ ++ trigger_data->led_cdev = led_cdev; ++ trigger_data->net_dev = NULL; ++ trigger_data->device_name[0] = 0; ++ ++ trigger_data->mode = 0; ++ trigger_data->interval = msecs_to_jiffies(50); ++ trigger_data->link_up = 0; ++ trigger_data->last_activity = 0; ++ ++ led_cdev->trigger_data = trigger_data; ++ ++ rc = device_create_file(led_cdev->dev, &dev_attr_device_name); ++ if (rc) ++ goto err_out; ++ rc = device_create_file(led_cdev->dev, &dev_attr_mode); ++ if (rc) ++ goto err_out_device_name; ++ rc = device_create_file(led_cdev->dev, &dev_attr_interval); ++ if (rc) ++ goto err_out_mode; ++ ++ register_netdevice_notifier(&trigger_data->notifier); ++ return; ++ ++err_out_mode: ++ device_remove_file(led_cdev->dev, &dev_attr_mode); ++err_out_device_name: ++ device_remove_file(led_cdev->dev, &dev_attr_device_name); ++err_out: ++ led_cdev->trigger_data = NULL; ++ kfree(trigger_data); ++} ++ ++static void netdev_trig_deactivate(struct led_classdev *led_cdev) ++{ ++ struct led_netdev_data *trigger_data = led_cdev->trigger_data; ++ ++ if (trigger_data) { ++ unregister_netdevice_notifier(&trigger_data->notifier); ++ ++ device_remove_file(led_cdev->dev, &dev_attr_device_name); ++ device_remove_file(led_cdev->dev, &dev_attr_mode); ++ device_remove_file(led_cdev->dev, &dev_attr_interval); ++ ++ write_lock(&trigger_data->lock); ++ ++ if (trigger_data->net_dev) { ++ dev_put(trigger_data->net_dev); ++ trigger_data->net_dev = NULL; ++ } ++ ++ write_unlock(&trigger_data->lock); ++ ++ del_timer_sync(&trigger_data->timer); ++ ++ kfree(trigger_data); ++ } ++} ++ ++static struct led_trigger netdev_led_trigger = { ++ .name = "netdev", ++ .activate = netdev_trig_activate, ++ .deactivate = netdev_trig_deactivate, ++}; ++ ++static int __init netdev_trig_init(void) ++{ ++ return led_trigger_register(&netdev_led_trigger); ++} ++ ++static void __exit netdev_trig_exit(void) ++{ ++ led_trigger_unregister(&netdev_led_trigger); ++} ++ ++module_init(netdev_trig_init); ++module_exit(netdev_trig_exit); ++ ++MODULE_AUTHOR("Oliver Jowett "); ++MODULE_DESCRIPTION("Netdev LED trigger"); ++MODULE_LICENSE("GPL"); +diff -Naur linux-3.2.33.org/drivers/leds/Makefile linux-3.2.33/drivers/leds/Makefile +--- linux-3.2.33.org/drivers/leds/Makefile 2012-10-31 00:27:11.000000000 +0100 ++++ linux-3.2.33/drivers/leds/Makefile 2012-11-04 12:47:10.661589825 +0100 +@@ -54,3 +54,4 @@ + obj-$(CONFIG_LEDS_TRIGGER_BACKLIGHT) += ledtrig-backlight.o + obj-$(CONFIG_LEDS_TRIGGER_GPIO) += ledtrig-gpio.o + obj-$(CONFIG_LEDS_TRIGGER_DEFAULT_ON) += ledtrig-default-on.o ++obj-$(CONFIG_LEDS_TRIGGER_NETDEV) += ledtrig-netdev.o -- 2.39.5