diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch')
| -rw-r--r-- | target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch b/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch new file mode 100644 index 0000000000..e85f7a3db6 --- /dev/null +++ b/target/linux/goldfish/patches-2.6.30/0087-Input-Hold-wake-lock-while-event-queue-is-not-empty.patch @@ -0,0 +1,67 @@ +From 0d1077627288e51b5604f270eae6cf9f5ccd3871 Mon Sep 17 00:00:00 2001 +From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> +Date: Fri, 17 Oct 2008 15:20:55 -0700 +Subject: [PATCH 087/134] Input: Hold wake lock while event queue is not empty. +MIME-Version: 1.0 +Content-Type: text/plain; charset=utf-8 +Content-Transfer-Encoding: 8bit + +Allows userspace code to process input events while +the device appears to be asleep. + +Signed-off-by: Arve Hjønnevåg <arve@android.com> +--- + drivers/input/evdev.c | 7 +++++++ + 1 files changed, 7 insertions(+), 0 deletions(-) + +--- a/drivers/input/evdev.c ++++ b/drivers/input/evdev.c +@@ -19,6 +19,7 @@ + #include <linux/input.h> + #include <linux/major.h> + #include <linux/device.h> ++#include <linux/wakelock.h> + #include "input-compat.h" + + struct evdev { +@@ -43,6 +44,7 @@ struct evdev_client { + struct fasync_struct *fasync; + struct evdev *evdev; + struct list_head node; ++ struct wake_lock wake_lock; + }; + + static struct evdev *evdev_table[EVDEV_MINORS]; +@@ -55,6 +57,7 @@ static void evdev_pass_event(struct evde + * Interrupts are disabled, just acquire the lock + */ + spin_lock(&client->buffer_lock); ++ wake_lock_timeout(&client->wake_lock, 5 * HZ); + client->buffer[client->head++] = *event; + client->head &= EVDEV_BUFFER_SIZE - 1; + spin_unlock(&client->buffer_lock); +@@ -233,6 +236,7 @@ static int evdev_release(struct inode *i + mutex_unlock(&evdev->mutex); + + evdev_detach_client(evdev, client); ++ wake_lock_destroy(&client->wake_lock); + kfree(client); + + evdev_close_device(evdev); +@@ -269,6 +273,7 @@ static int evdev_open(struct inode *inod + } + + spin_lock_init(&client->buffer_lock); ++ wake_lock_init(&client->wake_lock, WAKE_LOCK_SUSPEND, "evdev"); + client->evdev = evdev; + evdev_attach_client(evdev, client); + +@@ -332,6 +337,8 @@ static int evdev_fetch_next_event(struct + if (have_event) { + *event = client->buffer[client->tail++]; + client->tail &= EVDEV_BUFFER_SIZE - 1; ++ if (client->head == client->tail) ++ wake_unlock(&client->wake_lock); + } + + spin_unlock_irq(&client->buffer_lock); |