diff options
Diffstat (limited to 'target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch')
| -rw-r--r-- | target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch | 313 |
1 files changed, 0 insertions, 313 deletions
diff --git a/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch b/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch deleted file mode 100644 index 0af1c5617d..0000000000 --- a/target/linux/goldfish/patches-2.6.30/0090-input-Add-keyreset-driver.patch +++ /dev/null @@ -1,313 +0,0 @@ -From eb92150c047e76960ecf8989b9037fd34b43a4af Mon Sep 17 00:00:00 2001 -From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com> -Date: Fri, 21 Nov 2008 21:47:23 -0800 -Subject: [PATCH 090/134] input: Add keyreset driver. -MIME-Version: 1.0 -Content-Type: text/plain; charset=utf-8 -Content-Transfer-Encoding: 8bit - -Add a platform device in the board file to specify a reset key-combo. -The first time the key-combo is detected a work function that syncs -the filesystems is scheduled. If all the keys are released and then -pressed again, it calls panic. Reboot on panic should be set for -this to work. - -Signed-off-by: Arve Hjønnevåg <arve@android.com> ---- - drivers/input/Kconfig | 9 ++ - drivers/input/Makefile | 1 + - drivers/input/keyreset.c | 229 ++++++++++++++++++++++++++++++++++++++++++++++ - include/linux/keyreset.h | 27 ++++++ - 4 files changed, 266 insertions(+), 0 deletions(-) - create mode 100644 drivers/input/keyreset.c - create mode 100644 include/linux/keyreset.h - ---- a/drivers/input/Kconfig -+++ b/drivers/input/Kconfig -@@ -149,6 +149,15 @@ config INPUT_APMPOWER - To compile this driver as a module, choose M here: the - module will be called apm-power. - -+config INPUT_KEYRESET -+ tristate "Reset key" -+ depends on INPUT -+ ---help--- -+ Say Y here if you want to reboot when some keys are pressed; -+ -+ To compile this driver as a module, choose M here: the -+ module will be called keyreset. -+ - config XEN_KBDDEV_FRONTEND - tristate "Xen virtual keyboard and mouse support" - depends on XEN_FBDEV_FRONTEND ---- a/drivers/input/Makefile -+++ b/drivers/input/Makefile -@@ -23,5 +23,6 @@ obj-$(CONFIG_INPUT_TOUCHSCREEN) += touch - obj-$(CONFIG_INPUT_MISC) += misc/ - - obj-$(CONFIG_INPUT_APMPOWER) += apm-power.o -+obj-$(CONFIG_INPUT_KEYRESET) += keyreset.o - - obj-$(CONFIG_XEN_KBDDEV_FRONTEND) += xen-kbdfront.o ---- /dev/null -+++ b/drivers/input/keyreset.c -@@ -0,0 +1,229 @@ -+/* drivers/input/keyreset.c -+ * -+ * Copyright (C) 2008 Google, Inc. -+ * -+ * This software is licensed under the terms of the GNU General Public -+ * License version 2, as published by the Free Software Foundation, and -+ * may be copied, distributed, and modified under those terms. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ */ -+ -+#include <linux/input.h> -+#include <linux/keyreset.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/reboot.h> -+#include <linux/sched.h> -+#include <linux/syscalls.h> -+ -+ -+struct keyreset_state { -+ struct input_handler input_handler; -+ unsigned long keybit[BITS_TO_LONGS(KEY_CNT)]; -+ unsigned long upbit[BITS_TO_LONGS(KEY_CNT)]; -+ unsigned long key[BITS_TO_LONGS(KEY_CNT)]; -+ spinlock_t lock; -+ int key_down_target; -+ int key_down; -+ int key_up; -+ int restart_disabled; -+}; -+ -+int restart_requested; -+static void deferred_restart(struct work_struct *dummy) -+{ -+ restart_requested = 2; -+ sys_sync(); -+ restart_requested = 3; -+ kernel_restart(NULL); -+} -+static DECLARE_WORK(restart_work, deferred_restart); -+ -+static void keyreset_event(struct input_handle *handle, unsigned int type, -+ unsigned int code, int value) -+{ -+ unsigned long flags; -+ struct keyreset_state *state = handle->private; -+ -+ if (type != EV_KEY) -+ return; -+ -+ if (code >= KEY_MAX) -+ return; -+ -+ if (!test_bit(code, state->keybit)) -+ return; -+ -+ spin_lock_irqsave(&state->lock, flags); -+ if (!test_bit(code, state->key) == !value) -+ goto done; -+ __change_bit(code, state->key); -+ if (test_bit(code, state->upbit)) { -+ if (value) { -+ state->restart_disabled = 1; -+ state->key_up++; -+ } else -+ state->key_up--; -+ } else { -+ if (value) -+ state->key_down++; -+ else -+ state->key_down--; -+ } -+ if (state->key_down == 0 && state->key_up == 0) -+ state->restart_disabled = 0; -+ -+ pr_debug("reset key changed %d %d new state %d-%d-%d\n", code, value, -+ state->key_down, state->key_up, state->restart_disabled); -+ -+ if (value && !state->restart_disabled && -+ state->key_down == state->key_down_target) { -+ state->restart_disabled = 1; -+ if (restart_requested) -+ panic("keyboard reset failed, %d", restart_requested); -+ pr_info("keyboard reset\n"); -+ schedule_work(&restart_work); -+ restart_requested = 1; -+ } -+done: -+ spin_unlock_irqrestore(&state->lock, flags); -+} -+ -+static int keyreset_connect(struct input_handler *handler, -+ struct input_dev *dev, -+ const struct input_device_id *id) -+{ -+ int i; -+ int ret; -+ struct input_handle *handle; -+ struct keyreset_state *state = -+ container_of(handler, struct keyreset_state, input_handler); -+ -+ for (i = 0; i < KEY_MAX; i++) { -+ if (test_bit(i, state->keybit) && test_bit(i, dev->keybit)) -+ break; -+ } -+ if (i == KEY_MAX) -+ return -ENODEV; -+ -+ handle = kzalloc(sizeof(*handle), GFP_KERNEL); -+ if (!handle) -+ return -ENOMEM; -+ -+ handle->dev = dev; -+ handle->handler = handler; -+ handle->name = "keyreset"; -+ handle->private = state; -+ -+ ret = input_register_handle(handle); -+ if (ret) -+ goto err_input_register_handle; -+ -+ ret = input_open_device(handle); -+ if (ret) -+ goto err_input_open_device; -+ -+ pr_info("using input dev %s for key reset\n", dev->name); -+ -+ return 0; -+ -+err_input_open_device: -+ input_unregister_handle(handle); -+err_input_register_handle: -+ kfree(handle); -+ return ret; -+} -+ -+static void keyreset_disconnect(struct input_handle *handle) -+{ -+ input_close_device(handle); -+ input_unregister_handle(handle); -+ kfree(handle); -+} -+ -+static const struct input_device_id keyreset_ids[] = { -+ { -+ .flags = INPUT_DEVICE_ID_MATCH_EVBIT, -+ .evbit = { BIT_MASK(EV_KEY) }, -+ }, -+ { }, -+}; -+MODULE_DEVICE_TABLE(input, keyreset_ids); -+ -+static int keyreset_probe(struct platform_device *pdev) -+{ -+ int ret; -+ int key, *keyp; -+ struct keyreset_state *state; -+ struct keyreset_platform_data *pdata = pdev->dev.platform_data; -+ -+ if (!pdata) -+ return -EINVAL; -+ -+ state = kzalloc(sizeof(*state), GFP_KERNEL); -+ if (!state) -+ return -ENOMEM; -+ -+ spin_lock_init(&state->lock); -+ keyp = pdata->keys_down; -+ while ((key = *keyp++)) { -+ if (key >= KEY_MAX) -+ continue; -+ state->key_down_target++; -+ __set_bit(key, state->keybit); -+ } -+ if (pdata->keys_up) { -+ keyp = pdata->keys_up; -+ while ((key = *keyp++)) { -+ if (key >= KEY_MAX) -+ continue; -+ __set_bit(key, state->keybit); -+ __set_bit(key, state->upbit); -+ } -+ } -+ state->input_handler.event = keyreset_event; -+ state->input_handler.connect = keyreset_connect; -+ state->input_handler.disconnect = keyreset_disconnect; -+ state->input_handler.name = KEYRESET_NAME; -+ state->input_handler.id_table = keyreset_ids; -+ ret = input_register_handler(&state->input_handler); -+ if (ret) { -+ kfree(state); -+ return ret; -+ } -+ platform_set_drvdata(pdev, state); -+ return 0; -+} -+ -+int keyreset_remove(struct platform_device *pdev) -+{ -+ struct keyreset_state *state = platform_get_drvdata(pdev); -+ input_unregister_handler(&state->input_handler); -+ kfree(state); -+ return 0; -+} -+ -+ -+struct platform_driver keyreset_driver = { -+ .driver.name = KEYRESET_NAME, -+ .probe = keyreset_probe, -+ .remove = keyreset_remove, -+}; -+ -+static int __init keyreset_init(void) -+{ -+ return platform_driver_register(&keyreset_driver); -+} -+ -+static void __exit keyreset_exit(void) -+{ -+ return platform_driver_unregister(&keyreset_driver); -+} -+ -+module_init(keyreset_init); -+module_exit(keyreset_exit); ---- /dev/null -+++ b/include/linux/keyreset.h -@@ -0,0 +1,27 @@ -+/* -+ * include/linux/keyreset.h - platform data structure for resetkeys driver -+ * -+ * Copyright (C) 2008 Google, Inc. -+ * -+ * This software is licensed under the terms of the GNU General Public -+ * License version 2, as published by the Free Software Foundation, and -+ * may be copied, distributed, and modified under those terms. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ */ -+ -+#ifndef _LINUX_KEYRESET_H -+#define _LINUX_KEYRESET_H -+ -+#define KEYRESET_NAME "keyreset" -+ -+struct keyreset_platform_data { -+ int *keys_up; -+ int keys_down[]; /* 0 terminated */ -+}; -+ -+#endif /* _LINUX_KEYRESET_H */ |