git.sur5r.net Git - cc65/blob - asminc/ser-kernel.inc

   1 ;****************************************************************************
   2 ;*                                                                          *
   3 ;*                              ser-kernel.inc                              *
   4 ;*                                                                          *
   5 ;*                        Serial communication API                          *
   6 ;*                                                                          *
   7 ;*                                                                          *
   8 ;*                                                                          *
   9 ;*(C) 2003      Ullrich von Bassewitz                                       *
  10 ;*              Römerstrasse 52                                             *
  11 ;*              D-70794 Filderstadt                                         *
  12 ;*EMail:        uz@cc65.org                                                 *
  13 ;*                                                                          *
  14 ;*                                                                          *
  15 ;*This software is provided 'as-is', without any expressed or implied       *
  16 ;*warranty.  In no event will the authors be held liable for any damages    *
  17 ;*arising from the use of this software.                                    *
  18 ;*                                                                          *
  19 ;*Permission is granted to anyone to use this software for any purpose,     *
  20 ;*including commercial applications, and to alter it and redistribute it    *
  21 ;*freely, subject to the following restrictions:                            *
  22 ;*                                                                          *
  23 ;*1. The origin of this software must not be misrepresented; you must not   *
  24 ;*   claim that you wrote the original software. If you use this software   *
  25 ;*   in a product, an acknowledgment in the product documentation would be  *
  26 ;*   appreciated but is not required.                                       *
  27 ;*2. Altered source versions must be plainly marked as such, and must not   *
  28 ;*   be misrepresented as being the original software.                      *
  29 ;*3. This notice may not be removed or altered from any source              *
  30 ;*   distribution.                                                          *
  31 ;*                                                                          *
  32 ;****************************************************************************
  33
  34
  35
  36 ;------------------------------------------------------------------------------
  37 ; The driver header
  38
  39 .struct SER_HDR
  40         ID      .byte   3       ; Contains 0x73, 0x65, 0x72 ("ser")
  41         VERSION .byte   1       ; Interface version
  42         JUMPTAB .struct
  43             INSTALL     .word   ; INSTALL routine
  44             UNINSTALL   .word   ; UNINSTALL routine
  45             OPEN        .word   ; OPEN routine
  46             CLOSE       .word   ; CLOSE routine
  47             GET         .word   ; GET routine
  48             PUT         .word   ; PUT routine
  49             STATUS      .word   ; STATUS routine
  50             IOCTL       .word   ; IOCTL routine
  51         .endstruct
  52 .endstruct
  53
  54
  55 ;------------------------------------------------------------------------------
  56 ; The SER API version, stored SER_HDR::VERSION
  57
  58 SER_API_VERSION         = $01
  59
  60 ;------------------------------------------------------------------------------
  61 ; ser_params
  62
  63 .struct SER_PARAMS
  64         BAUDRATE        .byte           ; Baudrate
  65         DATABITS        .byte           ; Number of data bits
  66         STOPBITS        .byte           ; Number of stop bits
  67         PARITY          .byte           ; Parity setting
  68         HANDSHAKE       .byte           ; Type of handshake to use
  69 .endstruct
  70
  71 ;------------------------------------------------------------------------------
  72 ; Serial parameters
  73
  74 ; Baudrate
  75 SER_BAUD_45_5           =       $00
  76 SER_BAUD_50             =       $01
  77 SER_BAUD_75             =       $02
  78 SER_BAUD_110            =       $03
  79 SER_BAUD_134_5          =       $04
  80 SER_BAUD_150            =       $05
  81 SER_BAUD_300            =       $06
  82 SER_BAUD_600            =       $07
  83 SER_BAUD_1200           =       $08
  84 SER_BAUD_1800           =       $09
  85 SER_BAUD_2400           =       $0A
  86 SER_BAUD_3600           =       $0B
  87 SER_BAUD_4800           =       $0C
  88 SER_BAUD_7200           =       $0D
  89 SER_BAUD_9600           =       $0E
  90 SER_BAUD_19200          =       $0F
  91 SER_BAUD_38400          =       $10
  92 SER_BAUD_57600          =       $11
  93 SER_BAUD_115200         =       $12
  94 SER_BAUD_230400         =       $13
  95
  96 ; Data bit settings
  97 SER_BITS_5              =       $00
  98 SER_BITS_6              =       $01
  99 SER_BITS_7              =       $02
 100 SER_BITS_8              =       $03
 101
 102 ; Stop bit settings
 103 SER_STOP_1              =       $00
 104 SER_STOP_2              =       $01
 105
 106 ; Parity
 107 SER_PAR_NONE            =       $00
 108 SER_PAR_ODD             =       $01
 109 SER_PAR_EVEN            =       $02
 110 SER_PAR_MARK            =       $03
 111 SER_PAR_SPACE           =       $04
 112
 113 ; Handshake
 114 SER_HS_NONE             =       $00    ; No handshake
 115 SER_HS_HW               =       $01    ; Hardware (RTS/CTS) handshake
 116 SER_HS_SW               =       $02    ; Software handshake
 117
 118 ; Bit masks to mask out things from the status returned by rs232_status
 119 SER_STATUS_PE           =       $01     ; Parity error
 120 SER_STATUS_FE           =       $02     ; Framing error
 121 SER_STATUS_OE           =       $04     ; Overrun error
 122 SER_STATUS_DCD          =       $20     ; NOT data carrier detect
 123 SER_STATUS_DSR          =       $40     ; NOT data set ready
 124
 125 ;------------------------------------------------------------------------------
 126 ; Variables
 127
 128         .global _ser_drv                         ; Pointer to driver
 129
 130 ;------------------------------------------------------------------------------
 131 ; Driver entry points
 132
 133         .global ser_install
 134         .global ser_uninstall
 135         .global ser_open
 136         .global ser_close
 137         .global ser_get
 138         .global ser_put
 139         .global ser_status
 140         .global ser_ioctl
 141
 142
 143 ;------------------------------------------------------------------------------
 144 ; ASM functions
 145
 146         .global _ser_unload
 147         .global _ser_install
 148         .global _ser_uninstall
 149         .global _ser_open
 150         .global _ser_close
 151         .global _ser_get
 152         .global _ser_put
 153         .global _ser_status
 154         .global _ser_ioctl
 155
 156