; Assembler header file for OSSerialOp
; Written by DefMod (Dec  9 2012) on Sun Dec  9 15:43:44 2012
; Jonathan Coxhead, jonathan@doves.demon.co.uk, 29 June 1995

; OSLib---efficient, type-safe, transparent, extensible,
; register-safe API coverage of RISC OS
; 
; Copyright (c) 1994-2012 Jonathan Coxhead and OSLib maintainers
; 
; Licence:
; 
;    OSLib is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation; either version 1, or (at your option)
; any later version - and this with the following clarification and
; special exception:
; 
;    Linking this library statically or dynamically with other modules
; is making a combined work based on this library. Thus, the terms
; and conditions of the GNU General Public License cover the whole
; combination.
; 
;    As a special exception, the copyright holders of this library
; give you permission to link this library with independent modules
; to produce an executable, regardless of the license terms of these
; independent modules, and to copy and distribute the resulting
; executable under terms of your choice, provided that you also meet,
; for each linked independent module, the terms and conditions of the
; license of that module. An independent module is a module which is
; not derived from or based on this library. If you modify this
; library, you may extend this exception to your version of the library,
; but you are not obliged to do so. If you do not wish to do so, delete
; this exception statement from your version.
; 
;    OSLib 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.
; 
;    You should have received a copy of the GNU General Public License
; along with this programme; if not, write to the Free Software
; Foundation, Inc, 675 Mass Ave, Cambridge, MA 02139, USA.

        [       :LNOT: :DEF: OSSerialOp_Hdr
        GBLS    OSSerialOp_Hdr

        [       :LNOT: :DEF: Get_Types
        GBLS    Get_Types
        ]
        [       :LNOT: :DEF: Types_Hdr
Get_Types                       SETS    "GET oslib/Types.Hdr"
        |
Get_Types                       SETS    ""
        ]
        $Get_Types

        [       :LNOT: :DEF: Get_OS
        GBLS    Get_OS
        ]
        [       :LNOT: :DEF: OS_Hdr
Get_OS                          SETS    "GET oslib/OS.Hdr"
        |
Get_OS                          SETS    ""
        ]
        $Get_OS

;Symbols for constants
OSSerialOp_RS423ParityError     *       &20
OSSerialOp_RS423OverrunError    *       &10
OSSerialOp_RS423FramingError    *       &8
OSSerialOp_DataFormatWordSize   *       &3
OSSerialOp_DataFormatWordSizeShift *       0
OSSerialOp_DataFormatWordSize8Bit *       0
OSSerialOp_DataFormatWordSize7Bit *       1
OSSerialOp_DataFormatWordSize6Bit *       3
OSSerialOp_DataFormatExtraStopBits *       &4
OSSerialOp_DataFormatParityEnable *       &8
OSSerialOp_DataFormatParity     *       &30
OSSerialOp_DataFormatParityShift *       4
OSSerialOp_DataFormatParityOdd  *       0
OSSerialOp_DataFormatParityEven *       1
OSSerialOp_DataFormatParity1    *       2
OSSerialOp_DataFormatParity0    *       3
OSSerialOp_BaudRate9600         *       &7
OSSerialOp_BaudRate75           *       &1
OSSerialOp_BaudRate150          *       &2
OSSerialOp_BaudRate300          *       &3
OSSerialOp_BaudRate1200         *       &4
OSSerialOp_BaudRate2400         *       &5
OSSerialOp_BaudRate4800         *       &6
OSSerialOp_BaudRate19200        *       &8
OSSerialOp_BaudRate50           *       &9
OSSerialOp_BaudRate110          *       &A
OSSerialOp_BaudRate134pt5       *       &B
OSSerialOp_BaudRate600          *       &C
OSSerialOp_BaudRate1800         *       &D
OSSerialOp_BaudRate3600         *       &E
OSSerialOp_BaudRate7200         *       &F
OSSerialOp_BaudRate38400        *       &10
OSSerialOp_BaudRate57600        *       &11
OSSerialOp_BaudRate115200       *       &12

;Symbols for structure offsets and sizes
        ^       0
        #       Bits
OSSerialOp_RS423Status          *       @

        ^       0
        #       Bits
OSSerialOp_FormatFlags          *       @

        ^       0
        #       Int
OSSerialOp_BaudRate             *       @


;Symbols for SWI's and SWI reason codes
XOS_SerialOp                    *       &20057
OS_SerialOp                     *       &57

OSSerialOp_Status               *       &0
   ;Entry
   ;  R0 = &0
   ;  R1 = eor_mask (Bits)
   ;  R2 = and_mask (Bits)
   ;Exit
   ;  R1 = old_value (Bits)
   ;  R2 = new_value (Bits)

OSSerialOp_DataFormat           *       &1
   ;Entry
   ;  R0 = &1
   ;  R1 = data_format (OSSerialOp_FormatFlags)
   ;Exit
   ;  R1 = old_value (OSSerialOp_FormatFlags)

OSSerialOp_Break                *       &2
   ;Entry
   ;  R0 = &2
   ;  R1 = period (Int)

OSSerialOp_BPut                 *       &3
   ;Entry
   ;  R0 = &3
   ;  R1 = c (Byte)

OSSerialOp_BGet                 *       &4
   ;Entry
   ;  R0 = &4
   ;Exit
   ;  R1 = c (Byte)

OSSerialOp_RxBaudRate           *       &5
   ;Entry
   ;  R0 = &5
   ;  R1 = rx_rate (OSSerialOp_BaudRate)
   ;Exit
   ;  R1 = old_rx_rate (OSSerialOp_BaudRate)

OSSerialOp_TxBaudRate           *       &6
   ;Entry
   ;  R0 = &6
   ;  R1 = tx_rate (OSSerialOp_BaudRate)
   ;Exit
   ;  R1 = old_tx_rate (OSSerialOp_BaudRate)

OSSerialOp_RxThreshold          *       &8
   ;Entry
   ;  R0 = &8
   ;  R1 = rx_threshold (Bits)
   ;Exit
   ;  R1 = old_rx_threshold (Bits)

OSSerialOp_EnumerateBaudRates   *       &9
   ;Entry
   ;  R0 = &9
   ;Exit
   ;  R1 -> table (Int)
   ;  R2 = table_size (Int)

SerialV                         *       &24

Event_RS423Error                *       &7
   ;Entry
   ;  R0 = &7
   ;  R1 = status (OSSerialOp_RS423Status)
   ;  R2 = b (Byte)

        ]
        END
