mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 05:04:09 +08:00
Staging: android: add binder driver
It builds, but not as a module, and with lots of warnings. I also had to fix up a few syntax errors to get it to build properly, I'm doubting that anyone has built it in a while :( Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: Brian Swetland <swetland@google.com> Cc: Robert Love <rlove@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Arve Hjønnevåg
Greg Kroah-Hartman
parent
6dc9c9e8b0
commit
457b9a6f09
@ -6,4 +6,8 @@ config ANDROID
|
||||
---help---
|
||||
Enable support for various drivers needed on the Android platform
|
||||
|
||||
config ANDROID_BINDER_IPC
|
||||
tristate "Android Binder IPC Driver"
|
||||
default y
|
||||
|
||||
endmenu
|
||||
|
||||
@ -1 +1,2 @@
|
||||
obj-$(CONFIG_ANDROID) += android.o
|
||||
obj-$(CONFIG_ANDROID_BINDER_IPC) += binder.o
|
||||
|
||||
3499
drivers/staging/android/binder.c
Normal file
3499
drivers/staging/android/binder.c
Normal file
File diff suppressed because it is too large
Load Diff
330
drivers/staging/android/binder.h
Normal file
330
drivers/staging/android/binder.h
Normal file
@ -0,0 +1,330 @@
|
||||
/*
|
||||
* Copyright (C) 2008 Google, Inc.
|
||||
*
|
||||
* Based on, but no longer compatible with, the original
|
||||
* OpenBinder.org binder driver interface, which is:
|
||||
*
|
||||
* Copyright (c) 2005 Palmsource, 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_BINDER_H
|
||||
#define _LINUX_BINDER_H
|
||||
|
||||
#include <linux/ioctl.h>
|
||||
|
||||
#define B_PACK_CHARS(c1, c2, c3, c4) \
|
||||
((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4))
|
||||
#define B_TYPE_LARGE 0x85
|
||||
|
||||
enum {
|
||||
BINDER_TYPE_BINDER = B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE),
|
||||
BINDER_TYPE_WEAK_BINDER = B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE),
|
||||
BINDER_TYPE_HANDLE = B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE),
|
||||
BINDER_TYPE_WEAK_HANDLE = B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE),
|
||||
BINDER_TYPE_FD = B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE),
|
||||
};
|
||||
|
||||
enum {
|
||||
FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
|
||||
FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
|
||||
};
|
||||
|
||||
/*
|
||||
* This is the flattened representation of a Binder object for transfer
|
||||
* between processes. The 'offsets' supplied as part of a binder transaction
|
||||
* contains offsets into the data where these structures occur. The Binder
|
||||
* driver takes care of re-writing the structure type and data as it moves
|
||||
* between processes.
|
||||
*/
|
||||
struct flat_binder_object {
|
||||
/* 8 bytes for large_flat_header. */
|
||||
unsigned long type;
|
||||
unsigned long flags;
|
||||
|
||||
/* 8 bytes of data. */
|
||||
union {
|
||||
void *binder; /* local object */
|
||||
signed long handle; /* remote object */
|
||||
};
|
||||
|
||||
/* extra data associated with local object */
|
||||
void *cookie;
|
||||
};
|
||||
|
||||
/*
|
||||
* On 64-bit platforms where user code may run in 32-bits the driver must
|
||||
* translate the buffer (and local binder) addresses apropriately.
|
||||
*/
|
||||
|
||||
struct binder_write_read {
|
||||
signed long write_size; /* bytes to write */
|
||||
signed long write_consumed; /* bytes consumed by driver */
|
||||
unsigned long write_buffer;
|
||||
signed long read_size; /* bytes to read */
|
||||
signed long read_consumed; /* bytes consumed by driver */
|
||||
unsigned long read_buffer;
|
||||
};
|
||||
|
||||
/* Use with BINDER_VERSION, driver fills in fields. */
|
||||
struct binder_version {
|
||||
/* driver protocol version -- increment with incompatible change */
|
||||
signed long protocol_version;
|
||||
};
|
||||
|
||||
/* This is the current protocol version. */
|
||||
#define BINDER_CURRENT_PROTOCOL_VERSION 7
|
||||
|
||||
#define BINDER_WRITE_READ _IOWR('b', 1, struct binder_write_read)
|
||||
#define BINDER_SET_IDLE_TIMEOUT _IOW('b', 3, int64_t)
|
||||
#define BINDER_SET_MAX_THREADS _IOW('b', 5, size_t)
|
||||
#define BINDER_SET_IDLE_PRIORITY _IOW('b', 6, int)
|
||||
#define BINDER_SET_CONTEXT_MGR _IOW('b', 7, int)
|
||||
#define BINDER_THREAD_EXIT _IOW('b', 8, int)
|
||||
#define BINDER_VERSION _IOWR('b', 9, struct binder_version)
|
||||
|
||||
/*
|
||||
* NOTE: Two special error codes you should check for when calling
|
||||
* in to the driver are:
|
||||
*
|
||||
* EINTR -- The operation has been interupted. This should be
|
||||
* handled by retrying the ioctl() until a different error code
|
||||
* is returned.
|
||||
*
|
||||
* ECONNREFUSED -- The driver is no longer accepting operations
|
||||
* from your process. That is, the process is being destroyed.
|
||||
* You should handle this by exiting from your process. Note
|
||||
* that once this error code is returned, all further calls to
|
||||
* the driver from any thread will return this same code.
|
||||
*/
|
||||
|
||||
enum transaction_flags {
|
||||
TF_ONE_WAY = 0x01, /* this is a one-way call: async, no return */
|
||||
TF_ROOT_OBJECT = 0x04, /* contents are the component's root object */
|
||||
TF_STATUS_CODE = 0x08, /* contents are a 32-bit status code */
|
||||
TF_ACCEPT_FDS = 0x10, /* allow replies with file descriptors */
|
||||
};
|
||||
|
||||
struct binder_transaction_data {
|
||||
/* The first two are only used for bcTRANSACTION and brTRANSACTION,
|
||||
* identifying the target and contents of the transaction.
|
||||
*/
|
||||
union {
|
||||
size_t handle; /* target descriptor of command transaction */
|
||||
void *ptr; /* target descriptor of return transaction */
|
||||
} target;
|
||||
void *cookie; /* target object cookie */
|
||||
unsigned int code; /* transaction command */
|
||||
|
||||
/* General information about the transaction. */
|
||||
unsigned int flags;
|
||||
pid_t sender_pid;
|
||||
uid_t sender_euid;
|
||||
size_t data_size; /* number of bytes of data */
|
||||
size_t offsets_size; /* number of bytes of offsets */
|
||||
|
||||
/* If this transaction is inline, the data immediately
|
||||
* follows here; otherwise, it ends with a pointer to
|
||||
* the data buffer.
|
||||
*/
|
||||
union {
|
||||
struct {
|
||||
/* transaction data */
|
||||
const void *buffer;
|
||||
/* offsets from buffer to flat_binder_object structs */
|
||||
const void *offsets;
|
||||
} ptr;
|
||||
uint8_t buf[8];
|
||||
} data;
|
||||
};
|
||||
|
||||
struct binder_ptr_cookie {
|
||||
void *ptr;
|
||||
void *cookie;
|
||||
};
|
||||
|
||||
struct binder_pri_desc {
|
||||
int priority;
|
||||
int desc;
|
||||
};
|
||||
|
||||
struct binder_pri_ptr_cookie {
|
||||
int priority;
|
||||
void *ptr;
|
||||
void *cookie;
|
||||
};
|
||||
|
||||
enum BinderDriverReturnProtocol {
|
||||
BR_ERROR = _IOR('r', 0, int),
|
||||
/*
|
||||
* int: error code
|
||||
*/
|
||||
|
||||
BR_OK = _IO('r', 1),
|
||||
/* No parameters! */
|
||||
|
||||
BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
|
||||
BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
|
||||
/*
|
||||
* binder_transaction_data: the received command.
|
||||
*/
|
||||
|
||||
BR_ACQUIRE_RESULT = _IOR('r', 4, int),
|
||||
/*
|
||||
* not currently supported
|
||||
* int: 0 if the last bcATTEMPT_ACQUIRE was not successful.
|
||||
* Else the remote object has acquired a primary reference.
|
||||
*/
|
||||
|
||||
BR_DEAD_REPLY = _IO('r', 5),
|
||||
/*
|
||||
* The target of the last transaction (either a bcTRANSACTION or
|
||||
* a bcATTEMPT_ACQUIRE) is no longer with us. No parameters.
|
||||
*/
|
||||
|
||||
BR_TRANSACTION_COMPLETE = _IO('r', 6),
|
||||
/*
|
||||
* No parameters... always refers to the last transaction requested
|
||||
* (including replies). Note that this will be sent even for
|
||||
* asynchronous transactions.
|
||||
*/
|
||||
|
||||
BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie),
|
||||
BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie),
|
||||
BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie),
|
||||
BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie),
|
||||
/*
|
||||
* void *: ptr to binder
|
||||
* void *: cookie for binder
|
||||
*/
|
||||
|
||||
BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie),
|
||||
/*
|
||||
* not currently supported
|
||||
* int: priority
|
||||
* void *: ptr to binder
|
||||
* void *: cookie for binder
|
||||
*/
|
||||
|
||||
BR_NOOP = _IO('r', 12),
|
||||
/*
|
||||
* No parameters. Do nothing and examine the next command. It exists
|
||||
* primarily so that we can replace it with a BR_SPAWN_LOOPER command.
|
||||
*/
|
||||
|
||||
BR_SPAWN_LOOPER = _IO('r', 13),
|
||||
/*
|
||||
* No parameters. The driver has determined that a process has no
|
||||
* threads waiting to service incomming transactions. When a process
|
||||
* receives this command, it must spawn a new service thread and
|
||||
* register it via bcENTER_LOOPER.
|
||||
*/
|
||||
|
||||
BR_FINISHED = _IO('r', 14),
|
||||
/*
|
||||
* not currently supported
|
||||
* stop threadpool thread
|
||||
*/
|
||||
|
||||
BR_DEAD_BINDER = _IOR('r', 15, void *),
|
||||
/*
|
||||
* void *: cookie
|
||||
*/
|
||||
BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, void *),
|
||||
/*
|
||||
* void *: cookie
|
||||
*/
|
||||
|
||||
BR_FAILED_REPLY = _IO('r', 17),
|
||||
/*
|
||||
* The the last transaction (either a bcTRANSACTION or
|
||||
* a bcATTEMPT_ACQUIRE) failed (e.g. out of memory). No parameters.
|
||||
*/
|
||||
};
|
||||
|
||||
enum BinderDriverCommandProtocol {
|
||||
BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data),
|
||||
BC_REPLY = _IOW('c', 1, struct binder_transaction_data),
|
||||
/*
|
||||
* binder_transaction_data: the sent command.
|
||||
*/
|
||||
|
||||
BC_ACQUIRE_RESULT = _IOW('c', 2, int),
|
||||
/*
|
||||
* not currently supported
|
||||
* int: 0 if the last BR_ATTEMPT_ACQUIRE was not successful.
|
||||
* Else you have acquired a primary reference on the object.
|
||||
*/
|
||||
|
||||
BC_FREE_BUFFER = _IOW('c', 3, int),
|
||||
/*
|
||||
* void *: ptr to transaction data received on a read
|
||||
*/
|
||||
|
||||
BC_INCREFS = _IOW('c', 4, int),
|
||||
BC_ACQUIRE = _IOW('c', 5, int),
|
||||
BC_RELEASE = _IOW('c', 6, int),
|
||||
BC_DECREFS = _IOW('c', 7, int),
|
||||
/*
|
||||
* int: descriptor
|
||||
*/
|
||||
|
||||
BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie),
|
||||
BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie),
|
||||
/*
|
||||
* void *: ptr to binder
|
||||
* void *: cookie for binder
|
||||
*/
|
||||
|
||||
BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc),
|
||||
/*
|
||||
* not currently supported
|
||||
* int: priority
|
||||
* int: descriptor
|
||||
*/
|
||||
|
||||
BC_REGISTER_LOOPER = _IO('c', 11),
|
||||
/*
|
||||
* No parameters.
|
||||
* Register a spawned looper thread with the device.
|
||||
*/
|
||||
|
||||
BC_ENTER_LOOPER = _IO('c', 12),
|
||||
BC_EXIT_LOOPER = _IO('c', 13),
|
||||
/*
|
||||
* No parameters.
|
||||
* These two commands are sent as an application-level thread
|
||||
* enters and exits the binder loop, respectively. They are
|
||||
* used so the binder can have an accurate count of the number
|
||||
* of looping threads it has available.
|
||||
*/
|
||||
|
||||
BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14, struct binder_ptr_cookie),
|
||||
/*
|
||||
* void *: ptr to binder
|
||||
* void *: cookie
|
||||
*/
|
||||
|
||||
BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15, struct binder_ptr_cookie),
|
||||
/*
|
||||
* void *: ptr to binder
|
||||
* void *: cookie
|
||||
*/
|
||||
|
||||
BC_DEAD_BINDER_DONE = _IOW('c', 16, void *),
|
||||
/*
|
||||
* void *: cookie
|
||||
*/
|
||||
};
|
||||
|
||||
#endif /* _LINUX_BINDER_H */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user