diff options
Diffstat (limited to 'package/system/button-hotplug')
| -rw-r--r-- | package/system/button-hotplug/Makefile | 53 | ||||
| -rw-r--r-- | package/system/button-hotplug/src/Kconfig | 2 | ||||
| -rw-r--r-- | package/system/button-hotplug/src/Makefile | 1 | ||||
| -rw-r--r-- | package/system/button-hotplug/src/button-hotplug.c | 349 |
4 files changed, 0 insertions, 405 deletions
diff --git a/package/system/button-hotplug/Makefile b/package/system/button-hotplug/Makefile deleted file mode 100644 index 348ea13..0000000 --- a/package/system/button-hotplug/Makefile +++ /dev/null @@ -1,53 +0,0 @@ -# -# Copyright (C) 2008-2010 OpenWrt.org -# -# This is free software, licensed under the GNU General Public License v2. -# See /LICENSE for more information. -# - -include $(TOPDIR)/rules.mk -include $(INCLUDE_DIR)/kernel.mk - -PKG_NAME:=button-hotplug -PKG_RELEASE:=3 - -include $(INCLUDE_DIR)/package.mk - -define KernelPackage/button-hotplug - SUBMENU:=Other modules - TITLE:=Button Hotplug driver - FILES:=$(PKG_BUILD_DIR)/button-hotplug.ko - AUTOLOAD:=$(call AutoLoad,30,button-hotplug,1) - KCONFIG:= -endef - -define KernelPackage/button-hotplug/description - Kernel module to generate button hotplug events -endef - -EXTRA_KCONFIG:= \ - CONFIG_BUTTON_HOTPLUG=m - -EXTRA_CFLAGS:= \ - $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \ - $(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \ - -MAKE_OPTS:= \ - ARCH="$(LINUX_KARCH)" \ - CROSS_COMPILE="$(TARGET_CROSS)" \ - SUBDIRS="$(PKG_BUILD_DIR)" \ - EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \ - $(EXTRA_KCONFIG) - -define Build/Prepare - mkdir -p $(PKG_BUILD_DIR) - $(CP) ./src/* $(PKG_BUILD_DIR)/ -endef - -define Build/Compile - $(MAKE) -C "$(LINUX_DIR)" \ - $(MAKE_OPTS) \ - modules -endef - -$(eval $(call KernelPackage,button-hotplug)) diff --git a/package/system/button-hotplug/src/Kconfig b/package/system/button-hotplug/src/Kconfig deleted file mode 100644 index aa292e9..0000000 --- a/package/system/button-hotplug/src/Kconfig +++ /dev/null @@ -1,2 +0,0 @@ -config BUTTON_HOTPLUG - tristate "Button Hotplug driver" diff --git a/package/system/button-hotplug/src/Makefile b/package/system/button-hotplug/src/Makefile deleted file mode 100644 index 230d604..0000000 --- a/package/system/button-hotplug/src/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-${CONFIG_BUTTON_HOTPLUG} += button-hotplug.o
\ No newline at end of file diff --git a/package/system/button-hotplug/src/button-hotplug.c b/package/system/button-hotplug/src/button-hotplug.c deleted file mode 100644 index 4a8c4a8..0000000 --- a/package/system/button-hotplug/src/button-hotplug.c +++ /dev/null @@ -1,349 +0,0 @@ -/* - * Button Hotplug driver - * - * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> - * - * Based on the diag.c - GPIO interface driver for Broadcom boards - * Copyright (C) 2006 Mike Baker <mbm@openwrt.org>, - * Copyright (C) 2006-2007 Felix Fietkau <nbd@openwrt.org> - * Copyright (C) 2008 Andy Boyett <agb@openwrt.org> - * - * 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 <linux/module.h> -#include <linux/version.h> -#include <linux/kmod.h> -#include <linux/input.h> - -#include <linux/workqueue.h> -#include <linux/skbuff.h> -#include <linux/netlink.h> -#include <linux/kobject.h> - -#define DRV_NAME "button-hotplug" -#define DRV_VERSION "0.4.1" -#define DRV_DESC "Button Hotplug driver" - -#define BH_SKB_SIZE 2048 - -#define PFX DRV_NAME ": " - -#undef BH_DEBUG - -#ifdef BH_DEBUG -#define BH_DBG(fmt, args...) printk(KERN_DEBUG "%s: " fmt, DRV_NAME, ##args ) -#else -#define BH_DBG(fmt, args...) do {} while (0) -#endif - -#define BH_ERR(fmt, args...) printk(KERN_ERR "%s: " fmt, DRV_NAME, ##args ) - -#ifndef BIT_MASK -#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG)) -#endif - -struct bh_priv { - unsigned long *seen; - struct input_handle handle; -}; - -struct bh_event { - const char *name; - char *action; - unsigned long seen; - - struct sk_buff *skb; - struct work_struct work; -}; - -struct bh_map { - unsigned int code; - const char *name; -}; - -extern u64 uevent_next_seqnum(void); - -#define BH_MAP(_code, _name) \ - { \ - .code = (_code), \ - .name = (_name), \ - } - -static struct bh_map button_map[] = { - BH_MAP(BTN_0, "BTN_0"), - BH_MAP(BTN_1, "BTN_1"), - BH_MAP(BTN_2, "BTN_2"), - BH_MAP(BTN_3, "BTN_3"), - BH_MAP(BTN_4, "BTN_4"), - BH_MAP(BTN_5, "BTN_5"), - BH_MAP(BTN_6, "BTN_6"), - BH_MAP(BTN_7, "BTN_7"), - BH_MAP(BTN_8, "BTN_8"), - BH_MAP(BTN_9, "BTN_9"), - BH_MAP(KEY_RESTART, "reset"), -#ifdef KEY_WPS_BUTTON - BH_MAP(KEY_WPS_BUTTON, "wps"), -#endif /* KEY_WPS_BUTTON */ -}; - -/* -------------------------------------------------------------------------*/ - -static int bh_event_add_var(struct bh_event *event, int argv, - const char *format, ...) -{ - static char buf[128]; - char *s; - va_list args; - int len; - - if (argv) - return 0; - - va_start(args, format); - len = vsnprintf(buf, sizeof(buf), format, args); - va_end(args); - - if (len >= sizeof(buf)) { - BH_ERR("buffer size too small\n"); - WARN_ON(1); - return -ENOMEM; - } - - s = skb_put(event->skb, len + 1); - strcpy(s, buf); - - BH_DBG("added variable '%s'\n", s); - - return 0; -} - -static int button_hotplug_fill_event(struct bh_event *event) -{ - int ret; - - ret = bh_event_add_var(event, 0, "HOME=%s", "/"); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "PATH=%s", - "/sbin:/bin:/usr/sbin:/usr/bin"); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "SUBSYSTEM=%s", "button"); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "ACTION=%s", event->action); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "BUTTON=%s", event->name); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "SEEN=%ld", event->seen); - if (ret) - return ret; - - ret = bh_event_add_var(event, 0, "SEQNUM=%llu", uevent_next_seqnum()); - - return ret; -} - -static void button_hotplug_work(struct work_struct *work) -{ - struct bh_event *event = container_of(work, struct bh_event, work); - int ret = 0; - - event->skb = alloc_skb(BH_SKB_SIZE, GFP_KERNEL); - if (!event->skb) - goto out_free_event; - - ret = bh_event_add_var(event, 0, "%s@", event->action); - if (ret) - goto out_free_skb; - - ret = button_hotplug_fill_event(event); - if (ret) - goto out_free_skb; - - NETLINK_CB(event->skb).dst_group = 1; - broadcast_uevent(event->skb, 0, 1, GFP_KERNEL); - - out_free_skb: - if (ret) { - BH_ERR("work error %d\n", ret); - kfree_skb(event->skb); - } - out_free_event: - kfree(event); -} - -static int button_hotplug_create_event(const char *name, unsigned long seen, - int pressed) -{ - struct bh_event *event; - - BH_DBG("create event, name=%s, seen=%lu, pressed=%d\n", - name, seen, pressed); - - event = kzalloc(sizeof(*event), GFP_KERNEL); - if (!event) - return -ENOMEM; - - event->name = name; - event->seen = seen; - event->action = pressed ? "pressed" : "released"; - - INIT_WORK(&event->work, (void *)(void *)button_hotplug_work); - schedule_work(&event->work); - - return 0; -} - -/* -------------------------------------------------------------------------*/ - -#ifdef CONFIG_HOTPLUG -static int button_get_index(unsigned int code) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(button_map); i++) - if (button_map[i].code == code) - return i; - - return -1; -} -static void button_hotplug_event(struct input_handle *handle, - unsigned int type, unsigned int code, int value) -{ - struct bh_priv *priv = handle->private; - unsigned long seen = jiffies; - int btn; - - BH_DBG("event type=%u, code=%u, value=%d\n", type, code, value); - - if (type != EV_KEY) - return; - - btn = button_get_index(code); - if (btn < 0) - return; - - button_hotplug_create_event(button_map[btn].name, - (seen - priv->seen[btn]) / HZ, value); - priv->seen[btn] = seen; -} -#else -static void button_hotplug_event(struct input_handle *handle, - unsigned int type, unsigned int code, int value) -{ -} -#endif /* CONFIG_HOTPLUG */ - -static int button_hotplug_connect(struct input_handler *handler, - struct input_dev *dev, const struct input_device_id *id) -{ - struct bh_priv *priv; - int ret; - int i; - - for (i = 0; i < ARRAY_SIZE(button_map); i++) - if (test_bit(button_map[i].code, dev->keybit)) - break; - - if (i == ARRAY_SIZE(button_map)) - return -ENODEV; - - priv = kzalloc(sizeof(*priv) + - (sizeof(unsigned long) * ARRAY_SIZE(button_map)), - GFP_KERNEL); - if (!priv) - return -ENOMEM; - - priv->seen = (unsigned long *) &priv[1]; - priv->handle.private = priv; - priv->handle.dev = dev; - priv->handle.handler = handler; - priv->handle.name = DRV_NAME; - - ret = input_register_handle(&priv->handle); - if (ret) - goto err_free_priv; - - ret = input_open_device(&priv->handle); - if (ret) - goto err_unregister_handle; - - BH_DBG("connected to %s\n", dev->name); - - return 0; - - err_unregister_handle: - input_unregister_handle(&priv->handle); - - err_free_priv: - kfree(priv); - return ret; -} - -static void button_hotplug_disconnect(struct input_handle *handle) -{ - struct bh_priv *priv = handle->private; - - input_close_device(handle); - input_unregister_handle(handle); - - kfree(priv); -} - -static const struct input_device_id button_hotplug_ids[] = { - { - .flags = INPUT_DEVICE_ID_MATCH_EVBIT, - .evbit = { BIT_MASK(EV_KEY) }, - }, - { - /* Terminating entry */ - }, -}; - -MODULE_DEVICE_TABLE(input, button_hotplug_ids); - -static struct input_handler button_hotplug_handler = { - .event = button_hotplug_event, - .connect = button_hotplug_connect, - .disconnect = button_hotplug_disconnect, - .name = DRV_NAME, - .id_table = button_hotplug_ids, -}; - -/* -------------------------------------------------------------------------*/ - -static int __init button_hotplug_init(void) -{ - int ret; - - printk(KERN_INFO DRV_DESC " version " DRV_VERSION "\n"); - ret = input_register_handler(&button_hotplug_handler); - if (ret) - BH_ERR("unable to register input handler\n"); - - return ret; -} -module_init(button_hotplug_init); - -static void __exit button_hotplug_exit(void) -{ - input_unregister_handler(&button_hotplug_handler); -} -module_exit(button_hotplug_exit); - -MODULE_DESCRIPTION(DRV_DESC); -MODULE_VERSION(DRV_VERSION); -MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>"); -MODULE_LICENSE("GPL v2"); - |