Add support for fusion linux module

package/Config.in

@@ -279,6 +279,7 @@ source "package/dialog/Config.in"
 
 comment "graphic libraries"
 source "package/directfb/Config.in"
+source "package/fusion/Config.in"
 source "package/imagemagick/Config.in"
 source "package/jpeg/Config.in"
 source "package/libpng/Config.in"

package/fusion/40-fusion.rules

@@ -0,0 +1 @@
+KERNEL=="fusion[0-9]*", NAME="fusion/%n", GROUP="video", MODE="0660"

package/fusion/Config.in

@@ -0,0 +1,7 @@
+config BR2_PACKAGE_LINUX_FUSION
+	bool "linux-fusion communication layer for DirectFB multi"
+	default n
+	depends on BR2_PACKAGE_DIRECTFB
+	help
+	  DirectFB Communication Layer allowing multiple DirectFB
+	  applications to run concurrently

package/fusion/fusion.h

@@ -0,0 +1,277 @@
+#ifndef __LINUX__FUSION_H__
+#define __LINUX__FUSION_H__
+
+#include <asm/ioctl.h>
+
+/*
+ * Fusion Kernel Device API Version
+ */
+#define FUSION_API_MAJOR      3         /* Increased if backward compatibility is dropped. */
+#define FUSION_API_MINOR      2         /* Increased if new features are added. */
+
+/*
+ * The Fusion ID is a unique identifier for one process consisting of threads.
+ */
+typedef unsigned long FusionID;
+
+#define FUSION_ID_MASTER      1         /* This is the fusion id of the master (first process). */
+
+/*
+ * Entering a world
+ */
+typedef struct {
+     struct {
+          int            major;         /* Must be set to FUSION_API_MAJOR before entering. */
+          int            minor;         /* Must be set to FUSION_API_MINOR before entering. */
+     } api;
+
+     FusionID            fusion_id;     /* Returns the fusion id of the entering process. */
+} FusionEnter;
+
+/*
+ * Forking in world
+ */
+typedef struct {
+     FusionID            fusion_id;     /* Returns the fusion id of the new (forked) fusionee. */
+} FusionFork;
+
+/*
+ * Sending a message
+ */
+typedef struct {
+     FusionID            fusion_id;     /* recipient */
+
+     int                 msg_id;        /* optional message identifier */
+     int                 msg_size;      /* message size, must be greater than zero */
+     const void         *msg_data;      /* message data, must not be NULL */
+} FusionSendMessage;
+
+/*
+ * Receiving a message
+ */
+typedef enum {
+     FMT_SEND,                          /* msg_id is an optional custom id */
+     FMT_CALL,                          /* msg_id is the call id */
+     FMT_REACTOR,                       /* msg_id is the reactor id */
+     FMT_SHMPOOL                        /* msg_id is the pool id */
+} FusionMessageType;
+
+typedef struct {
+     FusionMessageType   msg_type;      /* type (origin) of message */
+
+     int                 msg_id;        /* message id (custom id or call/reactor/pool id) */
+     int                 msg_size;      /* size of the following message data */
+
+     /* message data follows */
+} FusionReadMessage;
+
+/*
+ * Dispatching a message via a reactor
+ */
+typedef struct {
+     int                 reactor_id;
+     int                 self;
+
+     int                 msg_size;      /* message size, must be greater than zero */
+     const void         *msg_data;      /* message data, must not be NULL */
+} FusionReactorDispatch;
+
+/*
+ * Calling (synchronous RPC)
+ */
+typedef struct {
+     int                 call_id;       /* new call id returned */
+
+     void               *handler;       /* function pointer of handler to install */
+     void               *ctx;           /* optional handler context */
+} FusionCallNew;
+
+typedef enum {
+     FCEF_NONE   = 0x00000000,
+     FCEF_ONEWAY = 0x00000001,
+     FCEF_ALL    = 0x00000001
+} FusionCallExecFlags;
+
+typedef struct {
+     int                 ret_val;       /* return value of the call */
+
+     int                 call_id;       /* id of the requested call, each call has a fixed owner */
+
+     int                 call_arg;      /* optional int argument */
+     void               *call_ptr;      /* optional pointer argument (shared memory) */
+
+     FusionCallExecFlags flags;         /* execution flags */
+} FusionCallExecute;
+
+typedef struct {
+     int                 call_id;       /* id of currently executing call */
+
+     int                 val;           /* value to return */
+} FusionCallReturn;
+
+typedef struct {
+     void               *handler;       /* function pointer of handler to call */
+     void               *ctx;           /* optional handler context */
+
+     int                 caller;        /* fusion id of the caller or zero if called from Fusion */
+     int                 call_arg;      /* optional call parameter */
+     void               *call_ptr;      /* optional call parameter */
+} FusionCallMessage;
+
+/*
+ * Watching a reference
+ *
+ * This information is needed to have a specific call being executed if the
+ * reference count reaches zero. Currently one watch per reference is allowed.
+ *
+ * The call is made by Fusion and therefor has a caller id of zero.
+ *
+ */
+typedef struct {
+     int                 id;            /* id of the reference to watch */
+
+     int                 call_id;       /* id of the call to execute */
+     int                 call_arg;      /* optional call parameter, e.g. the id of a user
+                                           space resource associated with that reference */
+} FusionRefWatch;
+
+/*
+ * Inheriting local count from other reference
+ */
+typedef struct {
+     int                 id;            /* own reference id */
+     int                 from;          /* id of the reference to inherit from */
+} FusionRefInherit;
+
+/*
+ * Killing other fusionees (experimental)
+ */
+typedef struct {
+     FusionID            fusion_id;     /* fusionee to kill, zero means all but ourself */
+     int                 signal;        /* signal to be delivered, e.g. SIGTERM */
+     int                 timeout_ms;    /* -1 means no timeout, 0 means infinite, otherwise the
+                                           max. time to wait until the fusionee(s) terminated */
+} FusionKill;
+
+
+/*
+ * Shared memory pools
+ */
+typedef struct {
+     int                 max_size;      /* Maximum size that this pool will be allowed to grow to. */
+
+     int                 pool_id;       /* Returns the new pool id. */
+     void               *addr_base;     /* Returns the base of the reserved virtual memory address space. */
+} FusionSHMPoolNew;
+
+typedef struct {
+     int                 pool_id;       /* The id of the pool to attach to. */
+
+     void               *addr_base;     /* Returns the base of the reserved virtual memory address space. */
+     int                 size;          /* Returns the current size of the pool. */
+} FusionSHMPoolAttach;
+
+typedef struct {
+     int                 pool_id;       /* The id of the pool to notify. */
+
+     int                 size;          /* New size of the pool. */
+} FusionSHMPoolDispatch;
+
+typedef enum {
+     FSMT_REMAP,                        /* Remap the pool due to a change of its size. */
+     FSMT_UNMAP                         /* Unmap the pool due to its destruction. */
+} FusionSHMPoolMessageType;
+
+typedef struct {
+     FusionSHMPoolMessageType type;     /* Type of the message. */
+
+     int                      size;     /* New size of the pool, if type is FSMT_REMAP. */
+} FusionSHMPoolMessage;
+
+
+/*
+ * Fusion types
+ */
+typedef enum {
+     FT_LOUNGE,
+     FT_MESSAGING,
+     FT_CALL,
+     FT_REF,
+     FT_SKIRMISH,
+     FT_PROPERTY,
+     FT_REACTOR,
+     FT_SHMPOOL
+} FusionType;
+
+
+/*
+ * Set attributes like 'name' for an entry of the specified type.
+ */
+#define FUSION_ENTRY_INFO_NAME_LENGTH   24
+
+typedef struct {
+     FusionType          type;
+     int                 id;
+
+     char                name[FUSION_ENTRY_INFO_NAME_LENGTH];
+} FusionEntryInfo;
+
+
+
+#define FUSION_ENTER               _IOR(FT_LOUNGE,    0x00, FusionEnter)
+#define FUSION_UNBLOCK             _IO (FT_LOUNGE,    0x01)
+#define FUSION_KILL                _IOW(FT_LOUNGE,    0x02, FusionKill)
+
+#define FUSION_ENTRY_SET_INFO      _IOW(FT_LOUNGE,    0x03, FusionEntryInfo)
+#define FUSION_ENTRY_GET_INFO      _IOW(FT_LOUNGE,    0x04, FusionEntryInfo)
+
+#define FUSION_FORK                _IOW(FT_LOUNGE,    0x05, FusionFork)
+
+#define FUSION_SEND_MESSAGE        _IOW(FT_MESSAGING, 0x00, FusionSendMessage)
+
+#define FUSION_CALL_NEW            _IOW(FT_CALL,      0x00, FusionCallNew)
+#define FUSION_CALL_EXECUTE        _IOW(FT_CALL,      0x01, FusionCallExecute)
+#define FUSION_CALL_RETURN         _IOW(FT_CALL,      0x02, FusionCallReturn)
+#define FUSION_CALL_DESTROY        _IOW(FT_CALL,      0x03, int)
+
+#define FUSION_REF_NEW             _IOW(FT_REF,       0x00, int)
+#define FUSION_REF_UP              _IOW(FT_REF,       0x01, int)
+#define FUSION_REF_UP_GLOBAL       _IOW(FT_REF,       0x02, int)
+#define FUSION_REF_DOWN            _IOW(FT_REF,       0x03, int)
+#define FUSION_REF_DOWN_GLOBAL     _IOW(FT_REF,       0x04, int)
+#define FUSION_REF_ZERO_LOCK       _IOW(FT_REF,       0x05, int)
+#define FUSION_REF_ZERO_TRYLOCK    _IOW(FT_REF,       0x06, int)
+#define FUSION_REF_UNLOCK          _IOW(FT_REF,       0x07, int)
+#define FUSION_REF_STAT            _IOW(FT_REF,       0x08, int)
+#define FUSION_REF_WATCH           _IOW(FT_REF,       0x09, FusionRefWatch)
+#define FUSION_REF_INHERIT         _IOW(FT_REF,       0x0A, FusionRefInherit)
+#define FUSION_REF_DESTROY         _IOW(FT_REF,       0x0B, int)
+
+#define FUSION_SKIRMISH_NEW        _IOW(FT_SKIRMISH,  0x00, int)
+#define FUSION_SKIRMISH_PREVAIL    _IOW(FT_SKIRMISH,  0x01, int)
+#define FUSION_SKIRMISH_SWOOP      _IOW(FT_SKIRMISH,  0x02, int)
+#define FUSION_SKIRMISH_DISMISS    _IOW(FT_SKIRMISH,  0x03, int)
+#define FUSION_SKIRMISH_DESTROY    _IOW(FT_SKIRMISH,  0x04, int)
+#define FUSION_SKIRMISH_LOCK_COUNT _IOW(FT_SKIRMISH,  0x05, int)
+
+#define FUSION_PROPERTY_NEW        _IOW(FT_PROPERTY,  0x00, int)
+#define FUSION_PROPERTY_LEASE      _IOW(FT_PROPERTY,  0x01, int)
+#define FUSION_PROPERTY_PURCHASE   _IOW(FT_PROPERTY,  0x02, int)
+#define FUSION_PROPERTY_CEDE       _IOW(FT_PROPERTY,  0x03, int)
+#define FUSION_PROPERTY_HOLDUP     _IOW(FT_PROPERTY,  0x04, int)
+#define FUSION_PROPERTY_DESTROY    _IOW(FT_PROPERTY,  0x05, int)
+
+#define FUSION_REACTOR_NEW         _IOW(FT_REACTOR,   0x00, int)
+#define FUSION_REACTOR_ATTACH      _IOW(FT_REACTOR,   0x01, int)
+#define FUSION_REACTOR_DETACH      _IOW(FT_REACTOR,   0x02, int)
+#define FUSION_REACTOR_DISPATCH    _IOW(FT_REACTOR,   0x03, FusionReactorDispatch)
+#define FUSION_REACTOR_DESTROY     _IOW(FT_REACTOR,   0x04, int)
+
+#define FUSION_SHMPOOL_NEW         _IOW(FT_SHMPOOL,   0x00, FusionSHMPoolNew)
+#define FUSION_SHMPOOL_ATTACH      _IOW(FT_SHMPOOL,   0x01, FusionSHMPoolAttach)
+#define FUSION_SHMPOOL_DETACH      _IOW(FT_SHMPOOL,   0x02, int)
+#define FUSION_SHMPOOL_DISPATCH    _IOW(FT_SHMPOOL,   0x03, FusionSHMPoolDispatch)
+#define FUSION_SHMPOOL_DESTROY     _IOW(FT_SHMPOOL,   0x04, int)
+
+#endif
+

package/fusion/fusion.mk

@@ -0,0 +1,41 @@
+#############################################################
+#
+# linux-fusion
+#
+#############################################################
+LINUX_FUSION_VERSION:=3.2.3
+LINUX_FUSION_SOURCE:=linux-fusion-$(LINUX_FUSION_VERSION).tar.gz
+LINUX_FUSION_SITE:=http://www.directfb.org/downloads/Core
+LINUX_FUSION_CAT:=$(ZCAT)
+LINUX_FUSION_DIR:=$(TARGET_DIR)/etc/udev/rules.d
+LINUX_FUSION:=40-fusion.rules
+LINUX_FUSION_HEADER=$(STAGING_DIR)/usr/include/linux/fusion.h
+
+#############################################################
+#
+# build linux-fusion
+#
+#############################################################
+
+$(LINUX_FUSION_HEADER):
+	cp -dpf package/fusion/fusion.h $(LINUX_FUSION_HEADER)
+
+$(LINUX_FUSION_DIR)/$(LINUX_FUSION):
+	mkdir	-p $(LINUX_FUSION_DIR)
+	cp -dpf package/fusion/40-fusion.rules $(LINUX_FUSION_DIR)
+	touch -c $@
+
+linux-fusion: $(LINUX_FUSION_DIR)/$(LINUX_FUSION) $(LINUX_FUSION_HEADER)
+
+linux-fusion-clean:
+	rm -f $(LINUX_FUSION_DIR)/$(LINUX_FUSION))
+
+#############################################################
+#
+# Toplevel Makefile options
+#
+#############################################################
+ifeq ($(strip $(BR2_PACKAGE_LINUX_FUSION)),y)
+TARGETS+=linux-fusion
+endif
+