ser-kernel.inc

6502 c compiler free open source

;****************************************************************************
;*                                                                          *
;*                              ser-kernel.inc                              *
;*                                                                          *
;*                        Serial communication API                          *
;*                                                                          *
;*                                                                          *
;*                                                                          *
;*(C) 2003      Ullrich von Bassewitz                                       *
;*              R鰉erstrasse 52                                             *
;*              D-70794 Filderstadt                                         *
;*EMail:        [e-mail]                                                 *
;*                                                                          *
;*                                                                          *
;*This software is provided 'as-is', without any expressed or implied       *
;*warranty.  In no event will the authors be held liable for any damages    *
;*arising from the use of this software.                                    *
;*                                                                          *
;*Permission is granted to anyone to use this software for any purpose,     *
;*including commercial applications, and to alter it and redistribute it    *
;*freely, subject to the following restrictions:                            *
;*                                                                          *
;*1. The origin of this software must not be misrepresented; you must not   *
;*   claim that you wrote the original software. If you use this software   *
;*   in a product, an acknowledgment in the product documentation would be  *
;*   appreciated but is not required.                                       *
;*2. Altered source versions must be plainly marked as such, and must not   *
;*   be misrepresented as being the original software.                      *
;*3. This notice may not be removed or altered from any source              *
;*   distribution.                                                          *
;*                                                                          *
;****************************************************************************



;------------------------------------------------------------------------------
; The driver header

.struct SER_HDR
        ID      .byte   3       ; Contains 0x73, 0x65, 0x72 ("ser")
        VERSION .byte   1       ; Interface version
        JUMPTAB .struct
            INSTALL     .word   ; INSTALL routine
            UNINSTALL   .word   ; UNINSTALL routine
            OPEN        .word   ; OPEN routine
            CLOSE       .word   ; CLOSE routine
            GET         .word   ; GET routine
            PUT         .word   ; PUT routine
            STATUS      .word   ; STATUS routine
            IOCTL       .word   ; IOCTL routine
	    IRQ		.word	; IRQ routine
        .endstruct
.endstruct


;------------------------------------------------------------------------------
; The SER API version, stored SER_HDR::VERSION

SER_API_VERSION         = $00

;------------------------------------------------------------------------------
; ser_params

.struct SER_PARAMS
        BAUDRATE        .byte           ; Baudrate
        DATABITS        .byte           ; Number of data bits
        STOPBITS        .byte           ; Number of stop bits
        PARITY          .byte           ; Parity setting
        HANDSHAKE       .byte           ; Type of handshake to use
.endstruct

;------------------------------------------------------------------------------
; Serial parameters

; Baudrate
SER_BAUD_45_5           =       $00
SER_BAUD_50            	=       $01
SER_BAUD_75             =       $02
SER_BAUD_110           	=       $03
SER_BAUD_134_5         	=       $04
SER_BAUD_150            =       $05
SER_BAUD_300           	=       $06
SER_BAUD_600           	=       $07
SER_BAUD_1200          	=       $08
SER_BAUD_1800           =       $09
SER_BAUD_2400          	=       $0A
SER_BAUD_3600           =       $0B
SER_BAUD_4800          	=       $0C
SER_BAUD_7200           =       $0D
SER_BAUD_9600          	=       $0E
SER_BAUD_19200         	=       $0F
SER_BAUD_38400         	=       $10
SER_BAUD_57600         	=       $11
SER_BAUD_115200        	=       $12
SER_BAUD_230400        	=       $13

; Data bit settings
SER_BITS_5             	=       $00
SER_BITS_6             	=       $01
SER_BITS_7             	=       $02
SER_BITS_8             	=       $03

; Stop bit settings
SER_STOP_1             	=       $00
SER_STOP_2             	=       $01

; Parity
SER_PAR_NONE           	=       $00
SER_PAR_ODD            	=       $01
SER_PAR_EVEN           	=       $02
SER_PAR_MARK           	=       $03
SER_PAR_SPACE          	=       $04

; Handshake
SER_HS_NONE             =       $00    ; No handshake
SER_HS_HW               =       $01    ; Hardware (RTS/CTS) handshake
SER_HS_SW               =       $02    ; Software handshake

; Bit masks to mask out things from the status returned by rs232_status
SER_STATUS_PE          	=       $01	; Parity error
SER_STATUS_FE  	       	=       $02	; Framing error
SER_STATUS_OE           =       $04	; Overrun error
SER_STATUS_DCD 	       	=       $20	; NOT data carrier detect
SER_STATUS_DSR 	       	=       $40	; NOT data set ready

;------------------------------------------------------------------------------
; Variables

       	.global	_ser_drv                         ; Pointer to driver

;------------------------------------------------------------------------------
; Driver entry points

        .global ser_install
        .global ser_uninstall
        .global ser_open
        .global ser_close
        .global ser_get
        .global ser_put
        .global ser_status
        .global ser_ioctl
	.global	ser_irq

;------------------------------------------------------------------------------
; ASM functions

        .global _ser_unload
        .global _ser_install
        .global _ser_uninstall
        .global _ser_open
        .global _ser_close
        .global _ser_get
        .global _ser_put
        .global _ser_status
        .global _ser_ioctl