Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (368 commits)
  Staging: winbond: fix up wireless api errors
  Staging: dream: camera: sk5k3e2fx: fix code style issues
  Staging: dream: camera: msm_camera: fix code style issues
  Staging: wlan-ng: More checkpatch.pl error cleanups
  Staging: wlan-ng - checkpatch.pl fixups
  Staging: comedi: comedi_fops.c: Checkpatch cleanup
  Staging: comedi: fix suspect code indent in ni_labpc.c
  Staging: comedi: fix yet another brace coding style issue in ni_labpc.c
  Staging: comedi: fix another brace coding style issues in ni_labpc.c
  Staging: comedi: fix brace coding style issue in ni_labpc.c
  Staging: comedi: poc: Adding some KERN_ facility level
  Staging: dream: camera: msm_camera: fix some code style issues
  Staging: wlan-ng: fix most of the style issues in hfa384x.h
  Staging: dream: camera: msm_camera: fix coding style issues
  Staging: comedi: fix bracing coding style and 80 character issues in ni_660x.c
  Staging: comedi: fix bracing coding style issue in ni_65xx.c
  Staging: comedi: pcmad: Checkpatch cleanups
  Staging: comedi: poc: fix coding style issues
  staging: dt3155: revert u_long to u64 usage
  Staging: comedi: drivers.c: Checkpatch cleanup
  ...

6 files changed, 571 insertions, 0 deletions

diff --git a/drivers/staging/dream/include/linux/android_pmem.h b/drivers/staging/dream/include/linux/android_pmem.h
new file mode 100644
index 00000000000..2fc05d7d335
--- /dev/null
+++ b/drivers/staging/dream/include/linux/android_pmem.h
@@ -0,0 +1,80 @@
+/* drivers/staging/dream/include/linux/android_pmem.h
+ *
+ * Copyright (C) 2007 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 _ANDROID_PMEM_H_
+#define _ANDROID_PMEM_H_
+
+#define PMEM_IOCTL_MAGIC 'p'
+#define PMEM_GET_PHYS		_IOW(PMEM_IOCTL_MAGIC, 1, unsigned int)
+#define PMEM_MAP		_IOW(PMEM_IOCTL_MAGIC, 2, unsigned int)
+#define PMEM_GET_SIZE		_IOW(PMEM_IOCTL_MAGIC, 3, unsigned int)
+#define PMEM_UNMAP		_IOW(PMEM_IOCTL_MAGIC, 4, unsigned int)
+/* This ioctl will allocate pmem space, backing the file, it will fail
+ * if the file already has an allocation, pass it the len as the argument
+ * to the ioctl */
+#define PMEM_ALLOCATE		_IOW(PMEM_IOCTL_MAGIC, 5, unsigned int)
+/* This will connect a one pmem file to another, pass the file that is already
+ * backed in memory as the argument to the ioctl
+ */
+#define PMEM_CONNECT		_IOW(PMEM_IOCTL_MAGIC, 6, unsigned int)
+/* Returns the total size of the pmem region it is sent to as a pmem_region
+ * struct (with offset set to 0).
+ */
+#define PMEM_GET_TOTAL_SIZE	_IOW(PMEM_IOCTL_MAGIC, 7, unsigned int)
+/* Revokes gpu registers and resets the gpu.  Pass a pointer to the
+ * start of the mapped gpu regs (the vaddr returned by mmap) as the argument.
+ */
+#define HW3D_REVOKE_GPU		_IOW(PMEM_IOCTL_MAGIC, 8, unsigned int)
+#define HW3D_GRANT_GPU		_IOW(PMEM_IOCTL_MAGIC, 9, unsigned int)
+#define HW3D_WAIT_FOR_INTERRUPT	_IOW(PMEM_IOCTL_MAGIC, 10, unsigned int)
+
+int get_pmem_file(int fd, unsigned long *start, unsigned long *vstart,
+		  unsigned long *end, struct file **filp);
+int get_pmem_user_addr(struct file *file, unsigned long *start,
+		       unsigned long *end);
+void put_pmem_file(struct file* file);
+void flush_pmem_file(struct file *file, unsigned long start, unsigned long len);
+
+struct android_pmem_platform_data
+{
+	const char* name;
+	/* starting physical address of memory region */
+	unsigned long start;
+	/* size of memory region */
+	unsigned long size;
+	/* set to indicate the region should not be managed with an allocator */
+	unsigned no_allocator;
+	/* set to indicate maps of this region should be cached, if a mix of
+	 * cached and uncached is desired, set this and open the device with
+	 * O_SYNC to get an uncached region */
+	unsigned cached;
+	/* The MSM7k has bits to enable a write buffer in the bus controller*/
+	unsigned buffered;
+};
+
+struct pmem_region {
+	unsigned long offset;
+	unsigned long len;
+};
+
+int pmem_setup(struct android_pmem_platform_data *pdata,
+	       long (*ioctl)(struct file *, unsigned int, unsigned long),
+	       int (*release)(struct inode *, struct file *));
+
+int pmem_remap(struct pmem_region *region, struct file *file,
+	       unsigned operation);
+
+#endif //_ANDROID_PPP_H_
+
diff --git a/drivers/staging/dream/include/linux/gpio_event.h b/drivers/staging/dream/include/linux/gpio_event.h
new file mode 100644
index 00000000000..ffc5da392ad
--- /dev/null
+++ b/drivers/staging/dream/include/linux/gpio_event.h
@@ -0,0 +1,154 @@
+/* drivers/staging/dream/include/linux/gpio_event.h
+ *
+ * Copyright (C) 2007 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_GPIO_EVENT_H
+#define _LINUX_GPIO_EVENT_H
+
+#include <linux/input.h>
+
+enum {
+	GPIO_EVENT_FUNC_UNINIT  = 0x0,
+	GPIO_EVENT_FUNC_INIT    = 0x1,
+	GPIO_EVENT_FUNC_SUSPEND = 0x2,
+	GPIO_EVENT_FUNC_RESUME  = 0x3,
+};
+struct gpio_event_info {
+	int (*func)(struct input_dev *input_dev,
+		    struct gpio_event_info *info,
+		    void **data, int func);
+	int (*event)(struct input_dev *input_dev,
+		     struct gpio_event_info *info,
+		     void **data, unsigned int type,
+		     unsigned int code, int value); /* out events */
+};
+
+struct gpio_event_platform_data {
+	const char *name;
+	struct gpio_event_info **info;
+	size_t info_count;
+	int (*power)(const struct gpio_event_platform_data *pdata, bool on);
+};
+
+#define GPIO_EVENT_DEV_NAME "gpio-event"
+
+/* Key matrix */
+
+enum gpio_event_matrix_flags {
+	/* unset: drive active output low, set: drive active output high */
+	GPIOKPF_ACTIVE_HIGH              = 1U << 0,
+	GPIOKPF_DEBOUNCE                 = 1U << 1,
+	GPIOKPF_REMOVE_SOME_PHANTOM_KEYS = 1U << 2,
+	GPIOKPF_REMOVE_PHANTOM_KEYS      = GPIOKPF_REMOVE_SOME_PHANTOM_KEYS |
+					   GPIOKPF_DEBOUNCE,
+	GPIOKPF_DRIVE_INACTIVE           = 1U << 3,
+	GPIOKPF_LEVEL_TRIGGERED_IRQ      = 1U << 4,
+	GPIOKPF_PRINT_UNMAPPED_KEYS      = 1U << 16,
+	GPIOKPF_PRINT_MAPPED_KEYS        = 1U << 17,
+	GPIOKPF_PRINT_PHANTOM_KEYS       = 1U << 18,
+};
+
+extern int gpio_event_matrix_func(struct input_dev *input_dev,
+			struct gpio_event_info *info, void **data, int func);
+struct gpio_event_matrix_info {
+	/* initialize to gpio_event_matrix_func */
+	struct gpio_event_info info;
+	/* size must be ninputs * noutputs */
+	const unsigned short *keymap;
+	unsigned int *input_gpios;
+	unsigned int *output_gpios;
+	unsigned int ninputs;
+	unsigned int noutputs;
+	/* time to wait before reading inputs after driving each output */
+	ktime_t settle_time;
+	/* time to wait before scanning the keypad a second time */
+	ktime_t debounce_delay;
+	ktime_t poll_time;
+	unsigned flags;
+};
+
+/* Directly connected inputs and outputs */
+
+enum gpio_event_direct_flags {
+	GPIOEDF_ACTIVE_HIGH         = 1U << 0,
+/*	GPIOEDF_USE_DOWN_IRQ        = 1U << 1, */
+/*	GPIOEDF_USE_IRQ             = (1U << 2) | GPIOIDF_USE_DOWN_IRQ, */
+	GPIOEDF_PRINT_KEYS          = 1U << 8,
+	GPIOEDF_PRINT_KEY_DEBOUNCE  = 1U << 9,
+};
+
+struct gpio_event_direct_entry {
+	uint32_t gpio:23;
+	uint32_t code:9;
+};
+
+/* inputs */
+extern int gpio_event_input_func(struct input_dev *input_dev,
+			struct gpio_event_info *info, void **data, int func);
+struct gpio_event_input_info {
+	/* initialize to gpio_event_input_func */
+	struct gpio_event_info info;
+	ktime_t debounce_time;
+	ktime_t poll_time;
+	uint16_t flags;
+	uint16_t type;
+	const struct gpio_event_direct_entry *keymap;
+	size_t keymap_size;
+};
+
+/* outputs */
+extern int gpio_event_output_func(struct input_dev *input_dev,
+			struct gpio_event_info *info, void **data, int func);
+extern int gpio_event_output_event(struct input_dev *input_dev,
+			struct gpio_event_info *info, void **data,
+			unsigned int type, unsigned int code, int value);
+struct gpio_event_output_info {
+	/* initialize to gpio_event_output_func and gpio_event_output_event */
+	struct gpio_event_info info;
+	uint16_t flags;
+	uint16_t type;
+	const struct gpio_event_direct_entry *keymap;
+	size_t keymap_size;
+};
+
+
+/* axes */
+
+enum gpio_event_axis_flags {
+	GPIOEAF_PRINT_UNKNOWN_DIRECTION  = 1U << 16,
+	GPIOEAF_PRINT_RAW                = 1U << 17,
+	GPIOEAF_PRINT_EVENT              = 1U << 18,
+};
+
+extern int gpio_event_axis_func(struct input_dev *input_dev,
+			struct gpio_event_info *info, void **data, int func);
+struct gpio_event_axis_info {
+	/* initialize to gpio_event_axis_func */
+	struct gpio_event_info info;
+	uint8_t  count;
+	uint8_t  type; /* EV_REL or EV_ABS */
+	uint16_t code;
+	uint16_t decoded_size;
+	uint16_t (*map)(struct gpio_event_axis_info *info, uint16_t in);
+	uint32_t *gpio;
+	uint32_t flags;
+};
+#define gpio_axis_2bit_gray_map gpio_axis_4bit_gray_map
+#define gpio_axis_3bit_gray_map gpio_axis_4bit_gray_map
+uint16_t gpio_axis_4bit_gray_map(
+			struct gpio_event_axis_info *info, uint16_t in);
+uint16_t gpio_axis_5bit_singletrack_map(
+			struct gpio_event_axis_info *info, uint16_t in);
+
+#endif
diff --git a/drivers/staging/dream/include/linux/msm_adsp.h b/drivers/staging/dream/include/linux/msm_adsp.h
new file mode 100644
index 00000000000..e775f3e94f1
--- /dev/null
+++ b/drivers/staging/dream/include/linux/msm_adsp.h
@@ -0,0 +1,84 @@
+/* drivers/staging/dream/include/linux/msm_adsp.h
+ *
+ * Copyright (c) QUALCOMM Incorporated
+ * Copyright (C) 2007 Google, Inc.
+ * Author: Iliyan Malchev <ibm@android.com>
+ *
+ * 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_MSM_ADSP_H
+#define __LINUX_MSM_ADSP_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define ADSP_IOCTL_MAGIC 'q'
+
+/* ADSP_IOCTL_WRITE_COMMAND */
+struct adsp_command_t {
+	uint16_t queue;
+	uint32_t len;		/* bytes */
+	uint8_t *data;
+};
+
+/* ADSP_IOCTL_GET_EVENT */
+struct adsp_event_t {
+	uint16_t type;		/* 1 == event (RPC), 0 == message (adsp) */
+	uint32_t timeout_ms;	/* -1 for infinite, 0 for immediate return */
+	uint16_t msg_id;
+	uint16_t flags;		/* 1 == 16--bit event, 0 == 32-bit event */
+	uint32_t len;		/* size in, number of bytes out */
+	uint8_t *data;
+};
+
+#define ADSP_IOCTL_ENABLE \
+	_IOR(ADSP_IOCTL_MAGIC, 1, unsigned)
+
+#define ADSP_IOCTL_DISABLE \
+	_IOR(ADSP_IOCTL_MAGIC, 2, unsigned)
+
+#define ADSP_IOCTL_DISABLE_ACK \
+	_IOR(ADSP_IOCTL_MAGIC, 3, unsigned)
+
+#define ADSP_IOCTL_WRITE_COMMAND \
+	_IOR(ADSP_IOCTL_MAGIC, 4, struct adsp_command_t *)
+
+#define ADSP_IOCTL_GET_EVENT \
+	_IOWR(ADSP_IOCTL_MAGIC, 5, struct adsp_event_data_t *)
+
+#define ADSP_IOCTL_SET_CLKRATE \
+	_IOR(ADSP_IOCTL_MAGIC, 6, unsigned)
+
+#define ADSP_IOCTL_DISABLE_EVENT_RSP \
+	_IOR(ADSP_IOCTL_MAGIC, 10, unsigned)
+
+struct adsp_pmem_info {
+        int fd;
+        void *vaddr;
+};
+
+#define ADSP_IOCTL_REGISTER_PMEM \
+	_IOW(ADSP_IOCTL_MAGIC, 13, unsigned)
+
+#define ADSP_IOCTL_UNREGISTER_PMEM \
+	_IOW(ADSP_IOCTL_MAGIC, 14, unsigned)
+
+/* Cause any further GET_EVENT ioctls to fail (-ENODEV)
+ * until the device is closed and reopened.  Useful for
+ * terminating event dispatch threads
+ */
+#define ADSP_IOCTL_ABORT_EVENT_READ \
+	_IOW(ADSP_IOCTL_MAGIC, 15, unsigned)
+
+#define ADSP_IOCTL_LINK_TASK \
+	_IOW(ADSP_IOCTL_MAGIC, 16, unsigned)
+
+#endif
diff --git a/drivers/staging/dream/include/linux/msm_audio.h b/drivers/staging/dream/include/linux/msm_audio.h
new file mode 100644
index 00000000000..cfbdaa0d98b
--- /dev/null
+++ b/drivers/staging/dream/include/linux/msm_audio.h
@@ -0,0 +1,115 @@
+/* drivers/staging/dream/include/linux/msm_audio.h
+ *
+ * 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_MSM_AUDIO_H
+#define __LINUX_MSM_AUDIO_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <asm/sizes.h>
+
+/* PCM Audio */
+
+#define AUDIO_IOCTL_MAGIC 'a'
+
+#define AUDIO_START        _IOW(AUDIO_IOCTL_MAGIC, 0, unsigned)
+#define AUDIO_STOP         _IOW(AUDIO_IOCTL_MAGIC, 1, unsigned)
+#define AUDIO_FLUSH        _IOW(AUDIO_IOCTL_MAGIC, 2, unsigned)
+#define AUDIO_GET_CONFIG   _IOR(AUDIO_IOCTL_MAGIC, 3, unsigned)
+#define AUDIO_SET_CONFIG   _IOW(AUDIO_IOCTL_MAGIC, 4, unsigned)
+#define AUDIO_GET_STATS    _IOR(AUDIO_IOCTL_MAGIC, 5, unsigned)
+#define AUDIO_ENABLE_AUDPP _IOW(AUDIO_IOCTL_MAGIC, 6, unsigned)
+#define AUDIO_SET_ADRC     _IOW(AUDIO_IOCTL_MAGIC, 7, unsigned)
+#define AUDIO_SET_EQ       _IOW(AUDIO_IOCTL_MAGIC, 8, unsigned)
+#define AUDIO_SET_RX_IIR   _IOW(AUDIO_IOCTL_MAGIC, 9, unsigned)
+#define AUDIO_SET_VOLUME   _IOW(AUDIO_IOCTL_MAGIC, 10, unsigned)
+#define AUDIO_ENABLE_AUDPRE  _IOW(AUDIO_IOCTL_MAGIC, 11, unsigned)
+#define AUDIO_SET_AGC        _IOW(AUDIO_IOCTL_MAGIC, 12, unsigned)
+#define AUDIO_SET_NS         _IOW(AUDIO_IOCTL_MAGIC, 13, unsigned)
+#define AUDIO_SET_TX_IIR     _IOW(AUDIO_IOCTL_MAGIC, 14, unsigned)
+#define AUDIO_PAUSE	     _IOW(AUDIO_IOCTL_MAGIC, 15, unsigned)
+#define AUDIO_GET_PCM_CONFIG _IOR(AUDIO_IOCTL_MAGIC, 30, unsigned)
+#define AUDIO_SET_PCM_CONFIG _IOW(AUDIO_IOCTL_MAGIC, 31, unsigned)
+#define AUDIO_SWITCH_DEVICE  _IOW(AUDIO_IOCTL_MAGIC, 32, unsigned)
+
+#define	AUDIO_MAX_COMMON_IOCTL_NUM	100
+
+#define	AUDIO_MAX_COMMON_IOCTL_NUM	100
+
+struct msm_audio_config {
+	uint32_t buffer_size;
+	uint32_t buffer_count;
+	uint32_t channel_count;
+	uint32_t sample_rate;
+	uint32_t type;
+	uint32_t unused[3];
+};
+
+struct msm_audio_stats {
+	uint32_t byte_count;
+	uint32_t sample_count;
+	uint32_t unused[2];
+};
+
+/* Audio routing */
+
+#define SND_IOCTL_MAGIC 's'
+
+#define SND_MUTE_UNMUTED 0
+#define SND_MUTE_MUTED   1
+
+struct msm_snd_device_config {
+	uint32_t device;
+	uint32_t ear_mute;
+	uint32_t mic_mute;
+};
+
+#define SND_SET_DEVICE _IOW(SND_IOCTL_MAGIC, 2, struct msm_device_config *)
+
+#define SND_METHOD_VOICE 0
+
+struct msm_snd_volume_config {
+	uint32_t device;
+	uint32_t method;
+	uint32_t volume;
+};
+
+#define SND_SET_VOLUME _IOW(SND_IOCTL_MAGIC, 3, struct msm_snd_volume_config *)
+
+/* Returns the number of SND endpoints supported. */
+
+#define SND_GET_NUM_ENDPOINTS _IOR(SND_IOCTL_MAGIC, 4, unsigned *)
+
+struct msm_snd_endpoint {
+	int id; /* input and output */
+	char name[64]; /* output only */
+};
+
+/* Takes an index between 0 and one less than the number returned by
+ * SND_GET_NUM_ENDPOINTS, and returns the SND index and name of a
+ * SND endpoint.  On input, the .id field contains the number of the
+ * endpoint, and on exit it contains the SND index, while .name contains
+ * the description of the endpoint.
+ */
+
+#define SND_GET_ENDPOINT _IOWR(SND_IOCTL_MAGIC, 5, struct msm_snd_endpoint *)
+
+struct msm_audio_pcm_config {
+	uint32_t pcm_feedback;	/* 0 - disable > 0 - enable */
+	uint32_t buffer_count;	/* Number of buffers to allocate */
+	uint32_t buffer_size;	/* Size of buffer for capturing of
+				   PCM samples */
+};
+#endif
diff --git a/drivers/staging/dream/include/linux/msm_rpcrouter.h b/drivers/staging/dream/include/linux/msm_rpcrouter.h
new file mode 100644
index 00000000000..64845fb481f
--- /dev/null
+++ b/drivers/staging/dream/include/linux/msm_rpcrouter.h
@@ -0,0 +1,47 @@
+/* drivers/staging/dream/include/linux/msm_rpcrouter.h
+ *
+ * Copyright (c) QUALCOMM Incorporated
+ * Copyright (C) 2007 Google, Inc.
+ * Author: San Mehat <san@android.com>
+ *
+ * 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_MSM_RPCROUTER_H
+#define __LINUX_MSM_RPCROUTER_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define RPC_ROUTER_VERSION_V1 0x00010000
+
+struct rpcrouter_ioctl_server_args {
+	uint32_t prog;
+	uint32_t vers;
+};
+
+#define RPC_ROUTER_IOCTL_MAGIC (0xC1)
+
+#define RPC_ROUTER_IOCTL_GET_VERSION \
+	_IOR(RPC_ROUTER_IOCTL_MAGIC, 0, unsigned int)
+
+#define RPC_ROUTER_IOCTL_GET_MTU \
+	_IOR(RPC_ROUTER_IOCTL_MAGIC, 1, unsigned int)
+
+#define RPC_ROUTER_IOCTL_REGISTER_SERVER \
+	_IOWR(RPC_ROUTER_IOCTL_MAGIC, 2, unsigned int)
+
+#define RPC_ROUTER_IOCTL_UNREGISTER_SERVER \
+	_IOWR(RPC_ROUTER_IOCTL_MAGIC, 3, unsigned int)
+
+#define RPC_ROUTER_IOCTL_GET_MINOR_VERSION \
+	_IOW(RPC_ROUTER_IOCTL_MAGIC, 4, unsigned int)
+
+#endif
diff --git a/drivers/staging/dream/include/linux/wakelock.h b/drivers/staging/dream/include/linux/wakelock.h
new file mode 100644
index 00000000000..93c31a4d1ca
--- /dev/null
+++ b/drivers/staging/dream/include/linux/wakelock.h
@@ -0,0 +1,91 @@
+/* drivers/staging/dream/include/linux/wakelock.h
+ *
+ * Copyright (C) 2007-2008 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_WAKELOCK_H
+#define _LINUX_WAKELOCK_H
+
+#include <linux/list.h>
+#include <linux/ktime.h>
+
+/* A wake_lock prevents the system from entering suspend or other low power
+ * states when active. If the type is set to WAKE_LOCK_SUSPEND, the wake_lock
+ * prevents a full system suspend. If the type is WAKE_LOCK_IDLE, low power
+ * states that cause large interrupt latencies or that disable a set of
+ * interrupts will not entered from idle until the wake_locks are released.
+ */
+
+enum {
+	WAKE_LOCK_SUSPEND, /* Prevent suspend */
+	WAKE_LOCK_IDLE,    /* Prevent low power idle */
+	WAKE_LOCK_TYPE_COUNT
+};
+
+struct wake_lock {
+#ifdef CONFIG_HAS_WAKELOCK
+	struct list_head    link;
+	int                 flags;
+	const char         *name;
+	unsigned long       expires;
+#ifdef CONFIG_WAKELOCK_STAT
+	struct {
+		int             count;
+		int             expire_count;
+		int             wakeup_count;
+		ktime_t         total_time;
+		ktime_t         prevent_suspend_time;
+		ktime_t         max_time;
+		ktime_t         last_time;
+	} stat;
+#endif
+#endif
+};
+
+#ifdef CONFIG_HAS_WAKELOCK
+
+void wake_lock_init(struct wake_lock *lock, int type, const char *name);
+void wake_lock_destroy(struct wake_lock *lock);
+void wake_lock(struct wake_lock *lock);
+void wake_lock_timeout(struct wake_lock *lock, long timeout);
+void wake_unlock(struct wake_lock *lock);
+
+/* wake_lock_active returns a non-zero value if the wake_lock is currently
+ * locked. If the wake_lock has a timeout, it does not check the timeout
+ * but if the timeout had aready been checked it will return 0.
+ */
+int wake_lock_active(struct wake_lock *lock);
+
+/* has_wake_lock returns 0 if no wake locks of the specified type are active,
+ * and non-zero if one or more wake locks are held. Specifically it returns
+ * -1 if one or more wake locks with no timeout are active or the
+ * number of jiffies until all active wake locks time out.
+ */
+long has_wake_lock(int type);
+
+#else
+
+static inline void wake_lock_init(struct wake_lock *lock, int type,
+					const char *name) {}
+static inline void wake_lock_destroy(struct wake_lock *lock) {}
+static inline void wake_lock(struct wake_lock *lock) {}
+static inline void wake_lock_timeout(struct wake_lock *lock, long timeout) {}
+static inline void wake_unlock(struct wake_lock *lock) {}
+
+static inline int wake_lock_active(struct wake_lock *lock) { return 0; }
+static inline long has_wake_lock(int type) { return 0; }
+
+#endif
+
+#endif
+