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|
-- RTEMS / Specification
--
-- DESCRIPTION:
--
-- This package provides the interface to the RTEMS API.
--
-- DEPENDENCIES:
--
-- NOTES:
-- RTEMS initialization and configuration are called from
-- the BSP side, therefore should never be called from ADA.
--
-- COPYRIGHT (c) 1997-2011.
-- On-Line Applications Research Corporation (OAR).
--
-- The license and distribution terms for this file may in
-- the file LICENSE in this distribution or at
-- http://www.rtems.org/license/LICENSE.
--
with System;
with System.Storage_Elements; use System.Storage_Elements;
with Interfaces;
with Interfaces.C;
package RTEMS is
pragma Elaborate_Body (RTEMS);
Structure_Alignment : constant := 8;
--
-- RTEMS Base Types
--
subtype Unsigned8 is Interfaces.Unsigned_8;
subtype Unsigned16 is Interfaces.Unsigned_16;
subtype Unsigned32 is Interfaces.Unsigned_32;
subtype Signed32 is Interfaces.Integer_32;
type Unsigned32_Pointer is access all RTEMS.Unsigned32;
type Unsigned16_Pointer is access all RTEMS.Unsigned16;
type Unsigned8_Pointer is access all RTEMS.Unsigned8;
type Signed32_Pointer is access all RTEMS.Signed32;
subtype Boolean is RTEMS.Unsigned8;
subtype Address is System.Address;
subtype Single is Interfaces.C.C_float;
subtype Double is Interfaces.C.Double;
--
-- The following define the size of each of the base types in
-- both bits and system units.
--
Unsigned8_Bits : constant := 7;
Unsigned16_Bits : constant := 15;
Unsigned32_Bits : constant := 31;
Boolean_Bits : constant := 7;
Address_Bits : constant := 31;
Single_Bits : constant := 31;
Double_Bits : constant := 63;
Unsigned8_Units : constant := 1;
Unsigned16_Units : constant := 2;
Unsigned32_Units : constant := 4;
Boolean_Units : constant := 1;
Address_Units : constant := 4;
Single_Units : constant := 4;
Double_Units : constant := 8;
Null_Address : constant RTEMS.Address :=
System.Storage_Elements.To_Address(0);
True : constant RTEMS.Boolean := 1;
False : constant RTEMS.Boolean := 0;
--
-- More Types
--
subtype Name is RTEMS.Unsigned32;
subtype ID is RTEMS.Unsigned32;
subtype Interval is RTEMS.Unsigned32;
subtype Attribute is RTEMS.Unsigned32;
subtype Mode is RTEMS.Unsigned32;
subtype Option is RTEMS.Unsigned32;
subtype Notepad_Index is RTEMS.Unsigned32 range 0 .. 15;
subtype Event_Set is RTEMS.Unsigned32;
subtype Signal_Set is RTEMS.Unsigned32;
subtype Device_Major_Number is RTEMS.Unsigned32;
subtype Device_Minor_Number is RTEMS.Unsigned32;
subtype ISR_Level is RTEMS.Unsigned32;
subtype Node is RTEMS.Unsigned32;
type Driver_Name_t is
record
Device_Name : RTEMS.Address;
Device_Name_Length : RTEMS.Unsigned32;
Major : RTEMS.Device_Major_Number;
Minor : RTEMS.Device_Minor_Number;
end record;
--
-- Task Related Types
--
subtype TCB is RTEMS.Unsigned32;
type TCB_Pointer is access all RTEMS.TCB;
--
-- Time of Day Type
--
type Time_Of_Day is
record
Year : RTEMS.Unsigned32; -- year, A.D.
Month : RTEMS.Unsigned32; -- month, 1 .. 12
Day : RTEMS.Unsigned32; -- day, 1 .. 31
Hour : RTEMS.Unsigned32; -- hour, 0 .. 23
Minute : RTEMS.Unsigned32; -- minute, 0 .. 59
Second : RTEMS.Unsigned32; -- second, 0 .. 59
Ticks : RTEMS.Unsigned32; -- elapsed ticks between seconds
end record;
type Time_T is new Long_Long_Integer;
type Timespec is record
TV_Sec : Time_T;
TV_Nsec : Interfaces.C.Long;
end record;
pragma Convention (C, Timespec);
type Time_Value is
record
Seconds : RTEMS.Unsigned32;
Microseconds : RTEMS.Unsigned32;
end record;
--
-- Ident Options
--
Search_All_Nodes : constant RTEMS.Node := 0;
Search_Other_Nodes : constant RTEMS.Node := 16#7FFFFFFE#;
Search_Local_Node : constant RTEMS.Node := 16#7FFFFFFF#;
Who_Am_I : constant RTEMS.Node := 0;
--
-- Options
--
Default_Options : constant RTEMS.Option := 16#0000#;
Wait : constant RTEMS.Option := 16#0000#;
No_Wait : constant RTEMS.Option := 16#0001#;
Event_All : constant RTEMS.Option := 16#0000#;
Event_Any : constant RTEMS.Option := 16#0002#;
--
-- Mode constants
--
Default_Modes : constant RTEMS.Mode := 16#0000#;
All_Mode_Masks : constant RTEMS.Mode := 16#0000_ffff#;
Current_Mode : constant RTEMS.Mode := 16#0000_0000#;
Preempt_Mask : constant RTEMS.Mode := 16#0000_0100#;
Timeslice_Mask : constant RTEMS.Mode := 16#0000_0200#;
ASR_Mask : constant RTEMS.Mode := 16#0000_0400#;
Interrupt_Mask : RTEMS.Mode;
Preempt : constant RTEMS.Mode := 16#0000_0000#;
No_Preempt : constant RTEMS.Mode := 16#0000_0100#;
No_Timeslice : constant RTEMS.Mode := 16#0000_0000#;
Timeslice : constant RTEMS.Mode := 16#0000_0200#;
ASR : constant RTEMS.Mode := 16#0000_0000#;
No_ASR : constant RTEMS.Mode := 16#0000_0400#;
pragma Import (C, Interrupt_Mask, "rtems_interrupt_mask");
--
-- Attribute constants
--
Default_Attributes : constant RTEMS.Attribute := 16#00000000#;
No_Floating_Point : constant RTEMS.Attribute := 16#00000000#;
Floating_Point : constant RTEMS.Attribute := 16#00000001#;
Local : constant RTEMS.Attribute := 16#00000000#;
Global : constant RTEMS.Attribute := 16#00000002#;
FIFO : constant RTEMS.Attribute := 16#00000000#;
Priority : constant RTEMS.Attribute := 16#00000004#;
Counting_Semaphore : constant RTEMS.Attribute := 16#00000000#;
Binary_Semaphore : constant RTEMS.Attribute := 16#00000010#;
Simple_Binary_Semaphore : constant RTEMS.Attribute := 16#00000020#;
No_Inherit_Priority : constant RTEMS.Attribute := 16#00000000#;
Inherit_Priority : constant RTEMS.Attribute := 16#00000040#;
No_Priority_Ceiling : constant RTEMS.Attribute := 16#00000000#;
Priority_Ceiling : constant RTEMS.Attribute := 16#00000080#;
function Interrupt_Level (
Level : in RTEMS.Unsigned32
) return RTEMS.Mode;
pragma Import (C, Interrupt_Level, "rtems_interrupt_level_body");
Minimum_Stack_Size : RTEMS.Unsigned32;
pragma Import (C, Minimum_Stack_Size, "rtems_minimum_stack_size");
--
-- Notepad index constants
--
Notepad_0 : constant RTEMS.Unsigned32 := 0;
Notepad_1 : constant RTEMS.Unsigned32 := 1;
Notepad_2 : constant RTEMS.Unsigned32 := 2;
Notepad_3 : constant RTEMS.Unsigned32 := 3;
Notepad_4 : constant RTEMS.Unsigned32 := 4;
Notepad_5 : constant RTEMS.Unsigned32 := 5;
Notepad_6 : constant RTEMS.Unsigned32 := 6;
Notepad_7 : constant RTEMS.Unsigned32 := 7;
Notepad_8 : constant RTEMS.Unsigned32 := 8;
Notepad_9 : constant RTEMS.Unsigned32 := 9;
Notepad_10 : constant RTEMS.Unsigned32 := 10;
Notepad_11 : constant RTEMS.Unsigned32 := 11;
Notepad_12 : constant RTEMS.Unsigned32 := 12;
Notepad_13 : constant RTEMS.Unsigned32 := 13;
Notepad_14 : constant RTEMS.Unsigned32 := 14;
Notepad_15 : constant RTEMS.Unsigned32 := 15;
--
-- Miscellaneous
--
No_Timeout : constant RTEMS.Interval := 0;
Self : constant RTEMS.ID := 0;
Yield_Processor : constant RTEMS.Interval := 0;
Rate_Monotonic_Period_Status : constant RTEMS.Interval := 0;
--
-- Extension Callouts and Table
--
type Thread_Create_Extension is access function (
Current_Task : in RTEMS.TCB_Pointer;
New_Task : in RTEMS.TCB_Pointer
) return RTEMS.Boolean;
pragma Convention (C, Thread_Create_Extension);
type Thread_Start_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer;
Started_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Start_Extension);
type Thread_Restart_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer;
Restarted_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Restart_Extension);
type Thread_Delete_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer;
Deleted_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Delete_Extension);
type Thread_Switch_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer;
Heir_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Switch_Extension);
type Thread_Begin_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Begin_Extension);
type Thread_Exitted_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Exitted_Extension);
type Thread_Terminate_Extension is access procedure (
Current_Task : in RTEMS.TCB_Pointer
);
pragma Convention (C, Thread_Terminate_Extension);
type Fatal_Error_Extension is access procedure (
Error : in RTEMS.Unsigned32
);
pragma Convention (C, Fatal_Error_Extension);
type Extensions_Table is
record
Thread_Create : RTEMS.Thread_Create_Extension;
Thread_Start : RTEMS.Thread_Start_Extension;
Thread_Restart : RTEMS.Thread_Restart_Extension;
Thread_Delete : RTEMS.Thread_Delete_Extension;
Thread_Switch : RTEMS.Thread_Switch_Extension;
Thread_Begin : RTEMS.Thread_Begin_Extension;
Thread_Exitted : RTEMS.Thread_Exitted_Extension;
Fatal : RTEMS.Fatal_Error_Extension;
Thread_Terminate : RTEMS.Thread_Terminate_Extension;
end record;
type Extensions_Table_Pointer is access all Extensions_Table;
--
-- The following type define a pointer to a signal service routine.
--
type ASR_Handler is access procedure (
Signals : in RTEMS.Signal_Set
);
pragma Convention (C, ASR_Handler);
--
-- Method Completions Status Codes
--
type Status_Codes is (
Successful, -- successful completion
Task_Exitted, -- returned from a task
MP_Not_Configured, -- multiprocessing not configured
Invalid_Name, -- invalid object name
Invalid_ID, -- invalid object id
Too_Many, -- too many
Timeout, -- timed out waiting
Object_Was_Deleted, -- object deleted while waiting
Invalid_Size, -- specified size was invalid
Invalid_Address, -- address specified is invalid
Invalid_Number, -- number was invalid
Not_Defined, -- item has not been initialized
Resource_In_Use, -- resources still outstanding
Unsatisfied, -- request not satisfied
Incorrect_State, -- task is in wrong state
Already_Suspended, -- task already in state
Illegal_On_Self, -- illegal on calling task
Illegal_On_Remote_Object, -- illegal for remote object
Called_From_ISR, -- called from wrong environment
Invalid_Priority, -- invalid task priority
Invalid_Clock, -- invalid date/time
Invalid_Node, -- invalid node id
Not_Configured, -- directive not configured
Not_Owner_Of_Resource, -- not owner of resource
Not_Implemented, -- directive not implemented
Internal_Error, -- RTEMS inconsistency detected
No_Memory, -- no memory left in heap
IO_Error, -- driver IO error
Proxy_Blocking -- internal multiprocessing only
);
for Status_Codes'Size use 32;
for Status_Codes use (
Successful => 0,
Task_Exitted => 1,
MP_Not_Configured => 2,
Invalid_Name => 3,
Invalid_ID => 4,
Too_Many => 5,
Timeout => 6,
Object_Was_Deleted => 7,
Invalid_Size => 8,
Invalid_Address => 9,
Invalid_NumbeR => 10,
Not_Defined => 11,
Resource_In_Use => 12,
Unsatisfied => 13,
Incorrect_State => 14,
Already_Suspended => 15,
Illegal_On_Self => 16,
Illegal_On_Remote_Object => 17,
Called_From_ISR => 18,
Invalid_Priority => 19,
Invalid_Clock => 20,
Invalid_Node => 21,
Not_Configured => 22,
Not_Owner_Of_Resource => 23,
Not_ImplementeD => 24,
Internal_Error => 25,
No_Memory => 26,
IO_Error => 27,
Proxy_Blocking => 28
);
--
-- RTEMS Events
--
Pending_Events : constant RTEMS.Event_Set := 16#0000_0000#;
All_Events : constant RTEMS.Event_Set := 16#FFFF_FFFF#;
Event_0 : constant RTEMS.Event_Set := 16#0000_0001#;
Event_1 : constant RTEMS.Event_Set := 16#0000_0002#;
Event_2 : constant RTEMS.Event_Set := 16#0000_0004#;
Event_3 : constant RTEMS.Event_Set := 16#0000_0008#;
Event_4 : constant RTEMS.Event_Set := 16#0000_0010#;
Event_5 : constant RTEMS.Event_Set := 16#0000_0020#;
Event_6 : constant RTEMS.Event_Set := 16#0000_0040#;
Event_7 : constant RTEMS.Event_Set := 16#0000_0080#;
Event_8 : constant RTEMS.Event_Set := 16#0000_0100#;
Event_9 : constant RTEMS.Event_Set := 16#0000_0200#;
Event_10 : constant RTEMS.Event_Set := 16#0000_0400#;
Event_11 : constant RTEMS.Event_Set := 16#0000_0800#;
Event_12 : constant RTEMS.Event_Set := 16#0000_1000#;
Event_13 : constant RTEMS.Event_Set := 16#0000_2000#;
Event_14 : constant RTEMS.Event_Set := 16#0000_4000#;
Event_15 : constant RTEMS.Event_Set := 16#0000_8000#;
Event_16 : constant RTEMS.Event_Set := 16#0001_0000#;
Event_17 : constant RTEMS.Event_Set := 16#0002_0000#;
Event_18 : constant RTEMS.Event_Set := 16#0004_0000#;
Event_19 : constant RTEMS.Event_Set := 16#0008_0000#;
Event_20 : constant RTEMS.Event_Set := 16#0010_0000#;
Event_21 : constant RTEMS.Event_Set := 16#0020_0000#;
Event_22 : constant RTEMS.Event_Set := 16#0040_0000#;
Event_23 : constant RTEMS.Event_Set := 16#0080_0000#;
Event_24 : constant RTEMS.Event_Set := 16#0100_0000#;
Event_25 : constant RTEMS.Event_Set := 16#0200_0000#;
Event_26 : constant RTEMS.Event_Set := 16#0400_0000#;
Event_27 : constant RTEMS.Event_Set := 16#0800_0000#;
Event_28 : constant RTEMS.Event_Set := 16#1000_0000#;
Event_29 : constant RTEMS.Event_Set := 16#2000_0000#;
Event_30 : constant RTEMS.Event_Set := 16#4000_0000#;
Event_31 : constant RTEMS.Event_Set := 16#8000_0000#;
--
-- RTEMS Signals
--
All_Signals : constant RTEMS.Signal_Set := 16#7FFFFFFF#;
Signal_0 : constant RTEMS.Signal_Set := 16#00000001#;
Signal_1 : constant RTEMS.Signal_Set := 16#00000002#;
Signal_2 : constant RTEMS.Signal_Set := 16#00000004#;
Signal_3 : constant RTEMS.Signal_Set := 16#00000008#;
Signal_4 : constant RTEMS.Signal_Set := 16#00000010#;
Signal_5 : constant RTEMS.Signal_Set := 16#00000020#;
Signal_6 : constant RTEMS.Signal_Set := 16#00000040#;
Signal_7 : constant RTEMS.Signal_Set := 16#00000080#;
Signal_8 : constant RTEMS.Signal_Set := 16#00000100#;
Signal_9 : constant RTEMS.Signal_Set := 16#00000200#;
Signal_10 : constant RTEMS.Signal_Set := 16#00000400#;
Signal_11 : constant RTEMS.Signal_Set := 16#00000800#;
Signal_12 : constant RTEMS.Signal_Set := 16#00001000#;
Signal_13 : constant RTEMS.Signal_Set := 16#00002000#;
Signal_14 : constant RTEMS.Signal_Set := 16#00004000#;
Signal_15 : constant RTEMS.Signal_Set := 16#00008000#;
Signal_16 : constant RTEMS.Signal_Set := 16#00010000#;
Signal_17 : constant RTEMS.Signal_Set := 16#00020000#;
Signal_18 : constant RTEMS.Signal_Set := 16#00040000#;
Signal_19 : constant RTEMS.Signal_Set := 16#00080000#;
Signal_20 : constant RTEMS.Signal_Set := 16#00100000#;
Signal_21 : constant RTEMS.Signal_Set := 16#00200000#;
Signal_22 : constant RTEMS.Signal_Set := 16#00400000#;
Signal_23 : constant RTEMS.Signal_Set := 16#00800000#;
Signal_24 : constant RTEMS.Signal_Set := 16#01000000#;
Signal_25 : constant RTEMS.Signal_Set := 16#02000000#;
Signal_26 : constant RTEMS.Signal_Set := 16#04000000#;
Signal_27 : constant RTEMS.Signal_Set := 16#08000000#;
Signal_28 : constant RTEMS.Signal_Set := 16#10000000#;
Signal_29 : constant RTEMS.Signal_Set := 16#20000000#;
Signal_30 : constant RTEMS.Signal_Set := 16#40000000#;
Signal_31 : constant RTEMS.Signal_Set := 16#80000000#;
--
-- Utility Functions
--
function From_Ada_Boolean (
Ada_Boolean : Standard.Boolean
) return RTEMS.Boolean;
function To_Ada_Boolean (
RTEMS_Boolean : RTEMS.Boolean
) return Standard.Boolean;
function Milliseconds_To_Microseconds (
Milliseconds : RTEMS.Unsigned32
) return RTEMS.Unsigned32;
function Microseconds_To_Ticks (
Microseconds : RTEMS.Unsigned32
) return RTEMS.Interval;
function Milliseconds_To_Ticks (
Milliseconds : RTEMS.Unsigned32
) return RTEMS.Interval;
procedure Name_To_Characters (
Name : in RTEMS.Name;
C1 : out Character;
C2 : out Character;
C3 : out Character;
C4 : out Character
);
function Get_Node (
ID : in RTEMS.ID
) return RTEMS.Unsigned32;
function Get_Index (
ID : in RTEMS.ID
) return RTEMS.Unsigned32;
function Are_Statuses_Equal (
Status : in RTEMS.Status_Codes;
Desired : in RTEMS.Status_Codes
) return Standard.Boolean;
function Is_Status_Successful (
Status : in RTEMS.Status_Codes
) return Standard.Boolean;
function Subtract (
Left : in RTEMS.Address;
Right : in RTEMS.Address
) return RTEMS.Unsigned32;
function Are_Equal (
Left : in RTEMS.Address;
Right : in RTEMS.Address
) return Standard.Boolean;
--
-- RTEMS API
--
function Build_Name (
C1 : in Character;
C2 : in Character;
C3 : in Character;
C4 : in Character
) return RTEMS.Name;
--
-- Initialization Manager -- Shutdown Only
--
procedure Shutdown_Executive (
Status : in RTEMS.Unsigned32
);
end RTEMS;
|
