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;

;    TFTP Wave Player

;

;    Compile with FASM for Menuet

;

;

;    12.7.2002 - Audio system calls by VT

;

use32

 org	0x0

 db	'MENUET01'    ; header

 dd	0x01	      ; header version

 dd	START	      ; entry point

 dd	I_END	      ; image size

 dd	I_END+0x10000 ; required memory

 dd	I_END+0x10000 ; esp

 dd	0x0 , 0x0     ; I_Param , I_Path

include 'lang.inc'

include '..\..\..\macros.inc'

delay	   dd  145

wait_for   dd  0x0

START:				; start of execution

    mov  dword [prompt], p9

    mov  dword [promptlen], p9len - p9

red:

    call draw_window		; at first, draw the window

still:

    mov  eax,10 		; wait here for event

    mcall

    cmp  eax,1			; redraw request ?

    jz	 red

    cmp  eax,2			; key in buffer ?

    jz	 key

    cmp  eax,3			; button in buffer ?

    jz	 button

    jmp  still

key:			       ; Keys are not valid at this part of the

    mov  eax,2			; loop. Just read it and ignore

    mcall

    jmp  still

button: 		       ; button

    mov  eax,17 		; get id

    mcall

    cmp  ah,1			; button id=1 ?

    jnz  noclose

    ; close socket before exiting

 mov  eax, 53

 mov  ebx, 1

 mov  ecx, [socketNum]

    mcall

 mov  [socketNum], dword 0

    or  eax,-1 	; close this program

    mcall

noclose:

    cmp  ah,2			; copy file to local machine?

    jnz  nocopyl

    mov   dword [prompt], p5

    mov  dword [promptlen], p5len - p5

    call  draw_window		 ;

    ; Copy File from Remote Host to this machine

    call translateData	; Convert Filename & IP address

    mov  edi, tftp_filename + 1

    mov  [edi], byte 0x01 ; setup tftp msg

    call copyFromRemote

    jmp  still

nocopyl:

    cmp  ah,4

    jz	 f1

    cmp  ah,5

    jz	 f2

    jmp  nof12

  f1:

    mov  [addr],dword source

    mov  [ya],dword 35

    jmp  rk

  f2:

    mov  [addr],dword destination

    mov  [ya],dword 35+16

  rk:

    mov  ecx,15

    mov  edi,[addr]

    mov  al,' '

    rep  stosb

    call print_text

    mov  edi,[addr]

  f11:

    mov  eax,10

    mcall

    cmp  eax,2

    jz	 fbu

    jmp  still

  fbu:

    mov  eax,2

    mcall  ; get key

    shr  eax,8

    cmp  eax,8

    jnz  nobs

    cmp  edi,[addr]

    jz	 f11

    sub  edi,1

    mov  [edi],byte ' '

    call print_text

    jmp  f11

  nobs:

    cmp  eax,dword 31

    jbe  f11

    cmp  eax,dword 95

    jb	 keyok

    sub  eax,32

  keyok:

    mov  [edi],al

    call print_text

    add  edi,1

    mov  esi,[addr]

    add  esi,15

    cmp  esi,edi

    jnz  f11

    jmp  still

print_text:

    mov  eax,13

    mov  ebx,103*65536+15*6

    mov  ecx,[ya]

    shl  ecx,16

    mov  cx,8

    mov  edx,0x224466

    mcall

    mov  eax,4

    mov  ebx,103*65536

    add  ebx,[ya]

    mov  ecx,0xffffff

    mov  edx,[addr]

    mov  esi,15

    mcall

    ret

  nof12:

    jmp  still

;***************************************************************************

;   Function

;      translateData

;

;   Description

;      Coverts the filename and IP address typed in by the user into

;      a format suitable for the IP layer.

;

;    The filename, in source, is converted and stored in tftp_filename

;      The host ip, in destination, is converted and stored in tftp_IP

;

;***************************************************************************

translateData:

 ; first, build up the tftp command string. This includes the filename

 ; and the transfer protocol

 ; First, write 0,0

 mov  al, 0

 mov  edi, tftp_filename

 mov  [edi], al

 inc  edi

 mov  [edi], al

 inc  edi

 ; Now, write the file name itself, and null terminate it

 mov  ecx, 15

 mov  ah, ' '

 mov  esi, source

td001:

 lodsb

 stosb

 cmp  al, ah

 loopnz td001

 cmp  al,ah  ; Was the entire buffer full of characters?

 jne  td002

 dec  edi   ; No - so remove ' ' character

td002:

 mov  [edi], byte 0

 inc  edi

 mov  [edi], byte 'O'

 inc  edi

 mov  [edi], byte 'C'

 inc  edi

 mov  [edi], byte 'T'

 inc  edi

 mov  [edi], byte 'E'

 inc  edi

 mov  [edi], byte 'T'

 inc  edi

 mov  [edi], byte 0

 mov  esi, tftp_filename

 sub  edi, esi

 mov  [tftp_len], edi

 ; Now, convert the typed IP address into a real address

 ; No validation is done on the number entered

 ; ip addresses must be typed in normally, eg

 ; 192.1.45.24

 xor  eax, eax

 mov  dh, 10

 mov  dl, al

 mov  [tftp_IP], eax

 ; 192.168.24.1   1.1.1.1       1. 9.2.3.

 mov  esi, destination

 mov  edi, tftp_IP

 mov  ecx, 4

td003:

 lodsb

 sub  al, '0'

 add  dl, al

 lodsb

 cmp  al, '.'

 je  ipNext

 cmp  al, ' '

 je  ipNext

 mov  dh, al

 sub  dh, '0'

 mov  al, 10

 mul  dl

 add  al, dh

 mov  dl, al

 lodsb

 cmp  al, '.'

 je  ipNext

 cmp  al, ' '

 je  ipNext

 mov  dh, al

 sub  dh, '0'

 mov  al, 10

 mul  dl

 add  al, dh

 mov  dl, al

 lodsb

ipNext:

 mov  [edi], dl

 inc  edi

 mov  dl, 0

 loop td003

 ret

;***************************************************************************

;   Function

;      copyFromRemote

;

;   Description

;

;***************************************************************************

copyFromRemote:

 mov  eax,0x20000-512

 mov  [fileposition], eax

 ; Get a random # for the local socket port #

 mov  eax, 3

 mcall

 mov  ecx, eax

 shr  ecx, 8	; Set up the local port # with a random #

   ; open socket

 mov  eax, 53

 mov  ebx, 0

 mov  edx, 69	 ; remote port

 mov  esi, [tftp_IP]  ; remote IP ( in intenet format )

 mcall

 mov  [socketNum], eax

 ; make sure there is no data in the socket - there shouldn't be..

cfr001:

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall    ; read byte

 mov  eax, 53

 mov  ebx, 2

 mov  ecx, [socketNum]

 mcall    ; any more data?

 cmp  eax, 0

 jne  cfr001	; yes, so get it

 ; Now, request the file

 mov  eax, 53

 mov  ebx, 4

 mov  ecx, [socketNum]

 mov  edx, [tftp_len]

 mov  esi, tftp_filename

 mcall

cfr002:

    mov  eax,23 		; wait here for event

    mov  ebx,1			; Time out after 10ms

    mcall

    cmp  eax,1			; redraw request ?

    je	 cfr003

    cmp  eax,2			; key in buffer ?

    je	 cfr004

    cmp  eax,3			; button in buffer ?

    je	 cfr005

    ; Any data to fetch?

 mov  eax, 53

 mov  ebx, 2

 mov  ecx, [socketNum]

 mcall

 cmp  eax, 0

 je  cfr002

 push eax     ; eax holds # chars

 ; Update the text on the display - once

 mov  eax, [prompt]

 cmp  eax, p3

 je  cfr008

 mov   dword [prompt], p3

 mov  dword [promptlen], p3len - p3

 call  draw_window	      ;

cfr008:

 ; we have data - this will be a tftp frame

 ; read first two bytes - opcode

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall   ; read byte

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall   ; read byte

 pop  eax

 ; bl holds tftp opcode. Can only be 3 (data) or 5 ( error )

 cmp  bl, 3

 jne  cfrerr

 push eax

 ; do data stuff. Read block #. Read data. Send Ack.

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall   ; read byte

 mov  [blockNumber], bl

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall   ; read byte

 mov  [blockNumber+1], bl

cfr007:

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

 mcall   ; read byte

 mov  esi, [fileposition]

 mov  [esi], bl

 mov  [esi+1],bl

 add  dword [fileposition],2

 mov  eax, 53

 mov  ebx, 2

 mov  ecx, [socketNum]

 mcall   ; any more data?

 cmp  eax, 0

 jne  cfr007  ; yes, so get it

 cmp  [fileposition],0x20000+0xffff

 jb   get_more_stream

wait_more:

 mov  eax,5    ; wait for correct timer position

	       ; to trigger new play block

 mov  ebx,1

 mcall

 mov  eax,26

 mov  ebx,9

 mcall

 cmp  eax,[wait_for]

 jb   wait_more

 add  eax,[delay]

 mov  [wait_for],eax

 mov  esi,0x20000

 mov  edi,0x10000

 mov  ecx,65536

 cld

 rep  movsb

 mov  eax,55

 mov  ebx,0

 mov  ecx,0x10000

 mcall

 mov  eax,55

 mov  ebx,1

 mcall

 mov  [fileposition],0x20000

get_more_stream:

 ; write the block number into the ack

 mov  al, [blockNumber]

 mov  [ack + 2], al

 mov  al, [blockNumber+1]

 mov  [ack + 3], al

 ; send an 'ack'

 mov  eax, 53

 mov  ebx, 4

 mov  ecx, [socketNum]

 mov  edx, ackLen - ack

 mov  esi, ack

 mcall

 ; If # of chars in the frame is less that 516,

 ; this frame is the last

 pop  eax

 cmp  eax, 516

 je  cfr002

 ; Write the file

 mov  eax, 33

 mov  ebx, source

 mov  edx, [filesize]

 mov  ecx, I_END + 512

 mov  esi, 0

 mcall

 jmp  cfrexit

cfrerr:

 ; simple implementation on error - just read all data, and return

 mov  eax, 53

 mov  ebx, 3

 mov  ecx, [socketNum]

    mcall	  ; read byte

 mov  eax, 53

 mov  ebx, 2

 mov  ecx, [socketNum]

    mcall	  ; any more data?

 cmp  eax, 0

 jne  cfrerr	; yes, so get it

 jmp  cfr006	; close socket and close app

cfr003: 			; redraw request

    call draw_window

    jmp  cfr002

cfr004: 			; key pressed

    mov  eax,2			; just read it and ignore

    mcall

    jmp  cfr002

cfr005: 		       ; button

    mov  eax,17 		; get id

    mcall

    cmp  ah,1			; button id=1 ?

    jne  cfr002     ; If not, ignore.

cfr006:

    ; close socket

 mov  eax, 53

 mov  ebx, 1

 mov  ecx, [socketNum]

    mcall

 mov  [socketNum], dword 0

    mov  eax,-1 		; close this program

    mcall

    jmp $

cfrexit:

    ; close socket

 mov  eax, 53

 mov  ebx, 1

 mov  ecx, [socketNum]

    mcall

 mov  [socketNum], dword 0

    mov   dword [prompt], p4

    mov  dword [promptlen], p4len - p4

    call  draw_window		 ;

 ret

;   *********************************************

;   *******  WINDOW DEFINITIONS AND DRAW ********

;   *********************************************

draw_window:

    mov  eax,12 		   ; function 12:tell os about windowdraw

    mov  ebx,1			   ; 1, start of draw

    mcall

				   ; DRAW WINDOW

    mov  eax,0			   ; function 0 : define and draw window

    mov  ebx,100*65536+230	   ; [x start] *65536 + [x size]

    mov  ecx,100*65536+170	   ; [y start] *65536 + [y size]

    mov  edx,0x14224466 	   ; color of work area RRGGBB

    mov  edi,title

    mcall

    mov  eax,8		    ; DELETE BUTTON

    mov  ebx,20*65536+190

    mov  ecx,111*65536+15

    mov  edx,2

    mov  esi,0x557799

    mcall

    mov  ebx,200*65536+10

    mov  ecx,34*65536+10

    mov  edx,4

    mcall

    mov  ecx,50*65536+10

    mov  edx,5

    mcall

 ; Copy the file name to the screen buffer

 ; file name is same length as IP address, to

 ; make the math easier later.

    cld

    mov  esi,source

    mov  edi,text+13

    mov  ecx,15

    rep  movsb

 ; copy the IP address to the screen buffer

    mov  esi,destination

    mov  edi,text+40+13

    mov  ecx,15

    rep  movsb

  ; copy the prompt to the screen buffer

    mov  esi,[prompt]

    mov  edi,text+280

    mov  ecx,[promptlen]

    rep  movsb

    ; Re-draw the screen text

    cld

    mov  eax,4

    mov  ebx,25*65536+35	   ; draw info text with function 4

    mov  ecx,0xffffff

    mov  edx,text

    mov  esi,40

  newline:

    mcall

    add  ebx,16

    add  edx,40

    cmp  [edx],byte 'x'

    jnz  newline

    mov  eax,12 		   ; function 12:tell os about windowdraw

    mov  ebx,2			   ; 2, end of draw

    mcall

    ret

; DATA AREA

source	     db  'HEAT8M22.WAV   '

destination  db  '192.168.1.24   '

tftp_filename:	times 15 + 9 db 0

tftp_IP:   dd 0

tftp_len:   dd 0

addr  dd  0x0

ya    dd  0x0

fileposition dd 0 ; Points to the current point in the file

filesize  dd 0 ; The number of bytes written / left to write

fileblocksize dw 0 ; The number of bytes to send in this frame

text:

    db 'SOURCE FILE: xxxxxxxxxxxxxxx            '

    db 'HOST IP ADD: xxx.xxx.xxx.xxx            '

    db '                                        '

    db 'WAVE FORMAT: 8 BIT,MONO,22050HZ         '

    db '                                        '

    db '     SERVER -> PLAY FILE                '

    db '                                        '

    db '                                        '

    db 'x' ; <- END MARKER, DONT DELETE

title	db   'TFTP Wave Player',0

prompt: dd 0

promptlen: dd 0

p1:  db 'Waiting for Command '

p1len:

p9:  db 'Define SB with setup'

p9len:

p2:  db 'Sending File        '

p2len:

p3:  db 'Playing File        '

p3len:

p4:  db 'Complete            '

p4len:

p5:  db 'Contacting Host...  '

p5len:

p6:  db 'File not found.     '

p6len:

ack:

 db 00,04,0,1

ackLen:

socketNum:

 dd 0

blockNumber:

 dw 0

; This must be the last part of the file, because the blockBuffer

; continues at I_END.

blockBuffer:

 db 00, 03, 00, 01

I_END: