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antoine-source/fmradio/fmradio.s
Antoine Vignau 1a3da1c52f Adding Australie
2023-11-02 08:07:02 +01:00

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*
* FM Radio
* A test app to listen to the radio on the Apple IIgs
*
* (c) 2023, Brutal Deluxe Software
* Visit brutaldeluxe.fr
*
xc
xc
mx %00
rel
lst off
*----------
use 4/ADB.Macs
use 4/Int.Macs
use 4/Locator.Macs
use 4/Mem.Macs
use 4/Misc.Macs
use 4/Text.Macs
use 4/Util.Macs
GSOS = $e100a8
*---------- ADB
*
* Sources
* Macintosh Inside Mac ADB Manager
* https://drive.google.com/file/d/16xFkb8oUzATYxg81mgSRrTVVxJlStRA1/view?usp=share_link
*
* Apple IIgs Toolbox Reference Volume 1
* https://drive.google.com/file/d/1uUJtv4EI7XCUd29V0EQ_RzSw9hfEJl3W/view?usp=share_link
*
* ADB specifications
* Rev B: http://www.brutaldeluxe.fr/documentation/cortland/v5/Front%20Desk%20Bus%20Specifications%20-%20062-0267%20Rev%20B%20-%2019850916.pdf
* v2.50: http://www.brutaldeluxe.fr/documentation/cortland/v3/Front%20Desk%20Bus%20ERS%20-%20Peter%20Baum%20-%20v02.50%20-%2019851024.pdf
* v3.0 : http://www.brutaldeluxe.fr/documentation/cortland/v3_10_FDBERS.pdf
* Apple IIgs ADB toolset ERS
* v1.0: http://www.brutaldeluxe.fr/documentation/cortland/v3/The%20FDB%20uC%20Tool%20Set%20-%20Peter%20Baum%20-%20Rev%201.0%20-%2019860312.pdf
* v1.1: http://www.brutaldeluxe.fr/documentation/cortland/v3/The%20ADB%20uC%20Tool%20Set%20-%20Peter%20Baum%20-%20Rev%201.1%20-%2019860515.pdf
* Tashtari's notes (thank you a lot for your help)
* http://github.com/lampmerchant/tashnotes/blob/main/macintosh/adb/other/lacie_fm_radio.md
*
* Comments
* The Mac directly talks/listens to the ADB chip
* The IIgs communicates with the ADB chip through the Keygloo.
* The Keygloo allows communication between the uC and the system processor.
* All commands described in the Apple IIgs Toolbox Reference Volume 1 are between the toolset and the Keygloo *ONLY*
*
* ADB commands
* Talk: from a device to the host - It means: "Device, talk to me, send me data"
* Listen: from the host to a device - It means: "Device, listen to me, eat my data"
*
* Command syntax
* 7654 32 10 Command
* --------------------
* xxxx 00 00 SENDRESET
* ADDR 00 01 FLUSH
* XXXX 00 10 RESERVED
* XXXX 00 11 RESERVED
* XXXX 01 XX RESERVED
* ADDR 10 RR LISTEN
* ADDR 11 RR TALK
*
* ADDR = 0..15
* RR = 0..3
*
*---------- Apple IIgs SendInfo ADB Commands (the ADB Tool Set *only*)
transmitADBBytes = %01000111 ; $47
enableSRQ = %01010000 ; $50
disableSRQ = %01110000 ; $70
listen = %10000000 ; $80
talk = %11000000 ; $C0
*---------- Error codes
cmdIncomplete = $0910 ; Command not completed
cantSync = $0911 ; Can't synchronize with system
adbBusy = $0982 ; ADB busy (command pending)
devNotAtAddr = $0983 ; Device not present at address
srqListFull = $0984 ; SRQ list full
*---------- FM Radio registers (big endian ordering in RAM, from Tashtari)
baseFREQ = $0358 ; (-)10.7 MHz
* Register 1 - Volume and tone controls
* Register 1 sets the volume and tone controls and is three bytes in length.
* Talk 1 has a fourth byte appended which is the firmware revision of the FM Radio (mine is 0x0A).
*
* Bit Description
* 23-16 Volume, apparently set in increments of 0x11 by the application
* 15 Always zero
* 14-12 Treble
* 11 Always zero
* 10-8 Bass
* 7 Mute, active high
* 6-5 Sound fading, 0 = normal, 1 = low, 2 = medium, 3 = high
* 4-1 Undetermined, apparently always zero
* 0 Undetermined, initially zero but always set high by the application
*
* Register 2 - FM station selection
*
* First byte
* In a Listen 2 command ,the fist byte seems to always be 0x41. In a Talk command, the bits of the first bytes are as follows:
*
* Bit Description
* 7 FM stereo indicator, active high
* 6-1 Undetermined, apparently always zero
* 0 Signal strength indicator, active high
*
* Second and third bytes (big endian)
* The second and third bytes indicate the FM station. Starting from a base of -10.7 MHz (0x358), the following values are added to it:
*
* Bit Description
* 15 Undetermined, always zero
* 14 Undetermined, always zero
* 13 102.4 MHz
* 12 51.2 MHz
* 11 25.6 MHz
* 10 12.8 MHz
* 9 6.4 MHz
* 8 3.2 MHz
* 7 1.6 MHz
* 6 800 kHz
* 5 400 kHz
* 4 200 kHz
* 3 100 kHz
* 2 50 kHz
* 1 Undetermined, always zero
* 0 Undetermined, always zero
*
* Register 3 - Default device data
*
* For FM Radio, this is 0779
* Default address is 07
* Default handler ID is 79
*
* -------------------------------
* 1 1 1 1 1
* 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
* -------------------------------
* 0 ! ! 0 ------- ---------------
* ! ! Address Dev handler ID
* ! > Service request enable
* > Exceptional event
*
*
* HOW TO USE
* To set volume & tone: send 8 Talk 0 commands, then a Listen 1 command followed by 8 Talk 0 commands
* To set the frequency: send 8 Talk 0 commands, then a Listen 2 command followed by 8 Talk 0 commands
*
*----------------------------
* ENTRY POINT
*----------------------------
phk
plb
clc
xce
rep #$30
_TLStartUp
pha
_MMStartUp
pla
sta appID
ora #$0100
sta myID
_MTStartUp
_TextStartUp
_IMStartUp
_ADBStartUp
*----------
PushWord #$00FF
PushWord #$0080
_SetInGlobals
PushWord #$00FF
PushWord #$0080
_SetOutGlobals
PushWord #$00FF
PushWord #$0080
_SetErrGlobals
PushWord #0
PushLong #3
_SetInputDevice
PushWord #0
PushLong #3
_SetOutputDevice
PushWord #0
PushLong #3
_SetErrorDevice
PushWord #0
_InitTextDev
PushWord #1
_InitTextDev
PushWord #2
_InitTextDev
PushWord #$0c ; home
_WriteChar
*----------------------------
* MENU: MAIN
*----------------------------
mainMENU
PushLong #strMAINMENU
_WriteCString
jsr waitFORKEY
cmp #"Q"
beq doQUIT
cmp #"q"
beq doQUIT
cmp #"1"
bne mmNOT1
jmp broadcastRangeMENU
mmNOT1 cmp #"2"
bne mmNOT2
jmp volumeDownMENU
mmNOT2 cmp #"3"
bne mmNOT3
jmp volumeUpMENU
mmNOT3 cmp #"4"
bne mmNOT4
jmp setFrequencyMENU
mmNOT4 cmp #"-"
bne mmNOT5
jmp decreaseFREQUENCY
mmNOT5 cmp #"+"
bne mainMENU
jmp increaseFREQUENCY
*----------------------------
* QUIT PROGRAM
*----------------------------
doQUIT
_ADBShutDown
_IMShutDown
_TextShutDown
_MTShutDown
PushWord myID
_DisposeAll
PushWord appID
_MMShutDown
_TLShutDown
jsl GSOS
dw $2029
adrl proQUIT
brk $bd
*---------- Data
strMAINMENU
asc 0d'FM Radio'0d
asc '(c) 2023, Brutal Deluxe Software'0d
asc ' 1. Set FM broadcast range'0d
asc ' 2. Volume down'0d
asc ' 3. Volume up'0d
asc ' 4. Set frequency'0d
asc ' Q. Quit'0d00
*----------------------------
* MENU: FM BROADCAST RANGE
*----------------------------
* There are different FM broadcast ranges in the world,
* a couple are shown here, and will let the users select
* their own range. See the text below to find your range.
*
* The values match those of the FM Radio (including the -10.7 MHz thing)
*
broadcastRangeMENU
PushLong #strBROADCASTMENU
_WriteCString
]lp jsr waitFORKEY ; is it 0-9
cmp #"0"
bcc ]lp
bne brmOK
jmp mainMENU ; or even 0 to exit
brmOK cmp #"5"+1
bcs ]lp
sec ; we have our device ID
sbc #"1"
asl
asl
tax
lda freqTABLE,x
sta freqMIN
lda freqTABLE+2,x
sta freqMAX
jmp mainMENU
*---------- Data
strBROADCASTMENU
asc 0d'Select your area:'0d
asc ' 1. Australia (87.5 MHz to 108 MHz)'0d
asc ' 2. Brazil (76.1 MHz to 108 MHz)'0d
asc ' 3. Europe (87.5 MHz to 108 MHz)'0d
asc ' 4. Japan (76 MHz to 95 MHz)'0d
asc ' 5. USA (88 MHz to 108 MHz)'0d
asc ' 0. Back to main menu'0d00
freqTABLE
dw $1EB0,$2518 ; Australia
dw $1B20,$2518 ; Brazil
dw $1EB0,$2518 ; Europe
dw $1B18,$2108 ; Japan
dw $1ED8,$2518 ; USA
*----------------------------
* MENU: VOLUME DOWN
*----------------------------
* We simply subtract 0x11 to the current volume
*
volumeDownMENU
sep #$20 ; switch to 8-bit
lda volume
bne vdOK
rep #$20 ; cannot change volume
jmp mainMENU
mx %10 ; still in 8-bit for A
vdOK sec
sbc #%0001_0001 ; decrements by 0x11
sta volume
rep #$20 ; back to 16-bit world
mx %00
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
skipmedown
jsr FMSendRegister1
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
jmp mainMENU
*----------------------------
* MENU: VOLUME UP
*----------------------------
* We add 0x11 to the current volume
*
volumeUpMENU
sep #$20 ; switch to 8-bit
lda volume
cmp #%1111_1111 ; max volume?
bne vuOK
rep #$20 ; cannot change volume
jmp mainMENU
mx %10 ; still in 8-bit for A
vuOK clc
adc #%0001_0001 ; decrements by 0x11
sta volume
rep #$20 ; back to 16-bit world
mx %00
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
skipmeup
jsr FMSendRegister1
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
jmp mainMENU
*----------------------------
* MENU: SET FREQUENCY
*----------------------------
* We set the requested FM Frequency.
* Some checks are done but not all.
* It is a proof of concept app :-)
* For < 100 MHz stations, either enter 095.2 or 95.20
*
maxCount = 5
setFrequencyMENU
PushLong #strSETFREQUENCYMENU
_WriteCString
* Clear entry buffer
sep #$20
ldx #maxCount-1
lda #"."
]lp sta strBUFFER,x
dex
bpl ]lp
rep #$20
PushWord #0 ; wordspace
PushLong #strBUFFER ; bufferPtr
PushWord #maxCount ; maxCount
PushWord #$8d ; eolChar
PushWord #1 ; echoFlag
_ReadLine
pla
bne sfmOK
sfmKO jmp mainMENU
sfmOK cmp #2 ; two chars at a minimum!
bcc sfmKO
* Reset the frequency string
lda #"00"
sta mySTRFREQ
sta mySTRFREQ+2
* Copy string (skip separator)
sep #$20 ; 8-bit world
ldx #0
txy
]lp lda strBUFFER,x
cmp #"." ; skip dot
beq sfmDOT
cmp #$8d ; CR
beq sfmDOT
sta mySTRFREQ,y
iny
sfmDOT inx
cpx #maxCount
bcc ]lp
* Right justify it now
lda mySTRFREQ
cmp #"1"
beq sfmNADA
lda mySTRFREQ+2
sta mySTRFREQ+3
lda mySTRFREQ+1
sta mySTRFREQ+2
lda mySTRFREQ
sta mySTRFREQ+1
lda #"0"
sta mySTRFREQ
* Convert in hex
sfmNADA rep #$20
PushLong #0
PushLong #mySTRFREQ
PushWord #4 ; strLength
PushWord #0 ; unsigned
_Dec2Long
pla
plx
bcc sfmNEXT ; no error, that's cool
jmp mainMENU ; we quit!!
* We have the hex equivalent of the frequency
sfmNEXT asl ; *8
asl
asl
clc
adc #baseFREQ ; +$358
sta freqCURRENT
* Now compare with the limits
theHiddenCall
lda freqCURRENT
cmp freqMIN
bcs stmFREQOK
cmp freqMAX
bcc stmFREQOK
beq stmFREQOK
jmp mainMENU
stmFREQOK xba ; big endian world
sta frequency ; final frequency!
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
skipme2 jsr FMSendRegister2
ldx #8
]lp phx
jsr FMTalkRegister0
plx
dex
bne ]lp
jmp mainMENU
*---------- Data
strSETFREQUENCYMENU
asc 0d'Which frequency (88, 95.2, 107.7)? '00
strBUFFER ds maxCount ; 102.7 is the max length
mySTRFREQ asc '0000' ; 1055 1000 0995
*---------- My frequency data is little endian
freqCURRENT dw $2500 ; The default
freqMIN ds 2
freqMAX ds 2
*----------------------------
* MENU: DECREASE/INCREASE FREQUENCY
*----------------------------
* frequency -= 8 or frequency += 8
decreaseFREQUENCY
lda freqCURRENT
sec
sbc #8
sta freqCURRENT
brl theHiddenCall
increaseFREQUENCY
lda freqCURRENT
clc
adc #8
sta freqCURRENT
brl theHiddenCall
*------------------------------------------------
*
* ADB TOOL SET ROUTINES
*
*------------------------------------------------
*-----------------------
* LISTEN routines to send
* data to the radio
*-----------------------
FMSendRegister1 ; send volume & tone data to the FM Radio
]lp PushWord #1+3 ; command (1) + data (3)
PushLong #dataListen1
PushWord #transmitADBBytes+3 ; + number of data bytes
_SendInfo
bcc FMLR1OK
cmp #adbBusy
beq ]lp
FMLR1OK rts
*-----------
dataListen1
dfb %0111_10_01 ; ADB command: Address (0111) + Listen (10) + Register (01)
volume dfb %0111_0111 ; volume (by increments of 0x11)
dfb %0001_0001 ; treble (1) and bass (1)
dfb %0000_0000 ; mute (off) & fading (normal)
*-----------------------
FMSendRegister2 ; send FM frequency to the FM Radio
]lp PushWord #1+3 ; command (1) + data (3)
PushLong #dataListen2
PushWord #transmitADBBytes+3 ; + number of data bytes
_SendInfo
bcc FMLR2OK
cmp #adbBusy
beq ]lp
FMLR2OK rts
*-----------
dataListen2
dfb %0111_10_10 ; ADB command: Address (0111) + Listen (10) + Register (10)
dfb %0100_0001 ; Default value (0x41)
frequency hex 2500 ; Frequency (107.5 MHz, big endian)
*-----------------------
* TALK routines to get
* data from the radio
*-----------------------
FMTalkRegister0 ; ask the FM Radio to talk to me on register 0
lda #dataTalk0
sta cpBuffer+1
]lp PushLong #completionRoutine
PushWord #%11_00_0111 ; talk (11) + register (00) + address (0111)
_AsyncADBReceive
bcc FMTR0OK
cmp #adbBusy
beq ]lp
FMTR0OK rts
*-----------
dataTalk0 ds 8 ; unknown format
*-----------------------
FMTalkRegister1 ; ask the FM Radio to talk to me on register 1
lda #dataTalk1
sta cpBuffer+1
]lp PushLong #completionRoutine
PushWord #%11_01_0111 ; talk (11) + register (01) + address (0111)
_AsyncADBReceive
bcc FMTR1OK
cmp #adbBusy
beq ]lp
FMTR1OK rts
*-----------
dataTalk1 ds 1 ; volume
ds 1 ; tone
ds 1 ; mute / fading
ds 1 ; firmware revision
ds 4 ; padding
*-----------------------
FMTalkRegister2 ; ask the FM Radio to talk to me on register 2
lda #dataTalk2
sta cpBuffer+1
]lp PushLong #completionRoutine
PushWord #%11_10_0111 ; talk (11) + register (10) + address (0111)
_AsyncADBReceive
bcc FMTR2OK
cmp #adbBusy
beq ]lp
FMTR2OK rts
*-----------
dataTalk2 ds 1 ; FM indicators
ds 2 ; frequency
ds 5 ; padding
*-----------------------
fmTalkRegister3 ; ask the FM Radio to talk to me on register 3
lda #dataTalk3
sta cpBuffer+1
]lp PushLong #completionRoutine
PushWord #%11_11_0111 ; talk (11) + register (11) + address (0111)
_AsyncADBReceive
bcc FMTR3OK
cmp #adbBusy
beq ]lp
FMTR3OK rts
*-----------
dataTalk3 ds 2 ; address & handler
ds 6 ; padding
*-----------------------
mx %11 ; enter the 8-bit world
completionRoutine ; nearly standard ADB completion routine
phd
tsc
tcd
lda [6]
beq endpool
tay
iny
]lp lda [6],y
tyx
cpBuffer stal dataTalk0,x ; patch this address please
dey
bne ]lp
endpool pld
rtl
mx %00 ; back to the 16-bit world
*------------------------------------------------
*
* SUB-ROUTINES
*
*------------------------------------------------
*----------------------------
* TEXT ROUTINES
*----------------------------
*---------- Display a word
showWORD pha ; from a word to a string
pha
pha ; <= here, really
_HexIt
PullLong strHEX
PushLong #strHEX ; show the string
_WriteCString
rts
*--- Data
strHEX asc '0000'00
*---------- Wait for a key in a range 0-Acc
* A: high key
* X: high ptr to C string
* Y: low ptr to C string
keyINRANGE sta keyHIGH
sty strKEY
stx strKEY+2
]lp PushLong strKEY
_WriteCString
PushWord #0
PushWord #1 ; echo char
_ReadChar
pla
and #$ff
cmp #"0"
bcc ]lp
cmp keyHIGH
bcc keyINRANGE9
beq keyINRANGE9
bra ]lp
keyINRANGE9 sec
sbc #"0"
pha
bra waitKEY8
*--- Data
strKEY ds 4 ; pointer to string
keyHIGH ds 2
*---------- Wait for a key
waitKEY PushWord #$0d
_WriteChar
PushWord #0
PushWord #0 ; don't echo char
_ReadChar
bra waitKEY1 ; go below
*---------- Wait for a key
waitFORKEY PushLong #strINPUT
_WriteCString
PushWord #0 ; wait for key
PushWord #1 ; echo char
_ReadChar
waitKEY1 lda 1,s ; check CR
and #$ff ; of typed
sta 1,s ; in char
cmp #$8d
beq waitKEY9
waitKEY8 PushWord #$0d ; return
_WriteChar
waitKEY9 pla ; restore entered char
rts
*--- Data
strINPUT asc 'Select an entry: '00
*----------------------------
* DATA
*----------------------------
*--- GS/OS
proQUIT dw 2 ; pcount
ds 4 ; pathname
ds 2 ; flags
*---------- Application
appID ds 2
myID ds 2
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