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@ -1,7 +1,7 @@ |
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/*
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/*
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* Button Hotplug driver |
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* Button Hotplug driver |
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* |
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* |
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* Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org> |
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* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> |
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* |
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* |
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* Based on the diag.c - GPIO interface driver for Broadcom boards |
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* Based on the diag.c - GPIO interface driver for Broadcom boards |
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* Copyright (C) 2006 Mike Baker <mbm@openwrt.org>, |
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* Copyright (C) 2006 Mike Baker <mbm@openwrt.org>, |
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@ -24,16 +24,11 @@ |
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#include <net/sock.h> |
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#include <net/sock.h> |
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#define DRV_NAME "button-hotplug" |
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#define DRV_NAME "button-hotplug" |
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#define DRV_VERSION "0.3.1" |
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#define DRV_VERSION "0.4.0" |
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#define DRV_DESC "Button Hotplug driver" |
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#define DRV_DESC "Button Hotplug driver" |
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#define BH_SKB_SIZE 2048 |
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#define BH_SKB_SIZE 2048 |
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#define BH_BTN_MIN BTN_0 |
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#define BH_BTN_MAX BTN_9 |
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#define BH_BTN_COUNT (BH_BTN_MAX - BH_BTN_MIN + 1) |
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#define PFX DRV_NAME ": " |
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#define PFX DRV_NAME ": " |
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#undef BH_DEBUG |
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#undef BH_DEBUG |
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@ -51,12 +46,12 @@ |
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#endif |
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#endif |
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struct bh_priv { |
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struct bh_priv { |
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unsigned long seen[BH_BTN_COUNT]; |
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unsigned long *seen; |
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struct input_handle handle; |
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struct input_handle handle; |
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}; |
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}; |
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struct bh_event { |
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struct bh_event { |
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char *name; |
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const char *name; |
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char *action; |
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char *action; |
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unsigned long seen; |
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unsigned long seen; |
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@ -64,12 +59,35 @@ struct bh_event { |
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struct work_struct work; |
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struct work_struct work; |
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}; |
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}; |
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struct bh_map { |
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unsigned int code; |
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const char *name; |
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}; |
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extern struct sock *uevent_sock; |
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extern struct sock *uevent_sock; |
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extern u64 uevent_next_seqnum(void); |
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extern u64 uevent_next_seqnum(void); |
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static char *button_names[BH_BTN_COUNT] = { |
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#define BH_MAP(_code, _name) \ |
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"BTN_0", "BTN_1", "BTN_2", "BTN_3", "BTN_4", |
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{ \
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"BTN_5", "BTN_6", "BTN_7", "BTN_8", "BTN_9" |
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.code = (_code), \
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.name = (_name), \
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} |
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static struct bh_map button_map[] = { |
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BH_MAP(BTN_0, "BTN_0"), |
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BH_MAP(BTN_1, "BTN_1"), |
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BH_MAP(BTN_2, "BTN_2"), |
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BH_MAP(BTN_3, "BTN_3"), |
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BH_MAP(BTN_4, "BTN_4"), |
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BH_MAP(BTN_5, "BTN_5"), |
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BH_MAP(BTN_6, "BTN_6"), |
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BH_MAP(BTN_7, "BTN_7"), |
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BH_MAP(BTN_8, "BTN_8"), |
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BH_MAP(BTN_9, "BTN_9"), |
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BH_MAP(KEY_RESTART, "reset"), |
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#ifdef KEY_WPS_BUTTON |
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BH_MAP(KEY_WPS_BUTTON, "wps"), |
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#endif /* KEY_WPS_BUTTON */ |
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}; |
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}; |
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/* -------------------------------------------------------------------------*/ |
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/* -------------------------------------------------------------------------*/ |
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@ -169,7 +187,7 @@ static void button_hotplug_work(struct work_struct *work) |
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kfree(event); |
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kfree(event); |
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} |
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} |
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static int button_hotplug_create_event(char *name, unsigned long seen, |
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static int button_hotplug_create_event(const char *name, unsigned long seen, |
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int pressed) |
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int pressed) |
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{ |
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{ |
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struct bh_event *event; |
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struct bh_event *event; |
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@ -194,23 +212,33 @@ static int button_hotplug_create_event(char *name, unsigned long seen, |
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/* -------------------------------------------------------------------------*/ |
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/* -------------------------------------------------------------------------*/ |
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#ifdef CONFIG_HOTPLUG |
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#ifdef CONFIG_HOTPLUG |
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static int button_get_index(unsigned int code) |
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{ |
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int i; |
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for (i = 0; i < ARRAY_SIZE(button_map); i++) |
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if (button_map[i].code == code) |
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return i; |
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return -1; |
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} |
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static void button_hotplug_event(struct input_handle *handle, |
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static void button_hotplug_event(struct input_handle *handle, |
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unsigned int type, unsigned int code, int value) |
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unsigned int type, unsigned int code, int value) |
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{ |
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{ |
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struct bh_priv *priv = handle->private; |
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struct bh_priv *priv = handle->private; |
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unsigned long seen = jiffies; |
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unsigned long seen = jiffies; |
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unsigned int btn; |
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int btn; |
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BH_DBG("event type=%u, code=%u, value=%d\n", type, code, value); |
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BH_DBG("event type=%u, code=%u, value=%d\n", type, code, value); |
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if (type != EV_KEY) |
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if (type != EV_KEY) |
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return; |
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return; |
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if (code < BH_BTN_MIN || code > BH_BTN_MAX) |
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btn = button_get_index(code); |
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if (btn < 0) |
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return; |
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return; |
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btn = code - BH_BTN_MIN; |
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button_hotplug_create_event(button_map[btn].name, |
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button_hotplug_create_event(button_names[btn], |
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(seen - priv->seen[btn]) / HZ, value); |
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(seen - priv->seen[btn]) / HZ, value); |
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priv->seen[btn] = seen; |
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priv->seen[btn] = seen; |
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} |
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} |
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@ -228,17 +256,20 @@ static int button_hotplug_connect(struct input_handler *handler, |
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int ret; |
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int ret; |
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int i; |
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int i; |
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for (i = BH_BTN_MIN; i <= BH_BTN_MAX; i++) |
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for (i = 0; i < ARRAY_SIZE(button_map); i++) |
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if (test_bit(i, dev->keybit)) |
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if (test_bit(button_map[i].code, dev->keybit)) |
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break; |
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break; |
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if (i > BH_BTN_MAX) |
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if (i == ARRAY_SIZE(button_map)) |
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return -ENODEV; |
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return -ENODEV; |
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priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
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priv = kzalloc(sizeof(*priv) + |
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(sizeof(unsigned long) * ARRAY_SIZE(button_map)), |
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GFP_KERNEL); |
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if (!priv) |
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if (!priv) |
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return -ENOMEM; |
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return -ENOMEM; |
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priv->seen = (unsigned long *) &priv[1]; |
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priv->handle.private = priv; |
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priv->handle.private = priv; |
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priv->handle.dev = dev; |
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priv->handle.dev = dev; |
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priv->handle.handler = handler; |
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priv->handle.handler = handler; |
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