diff options
Diffstat (limited to 'Documentation/input/amijoy.txt')
| -rw-r--r-- | Documentation/input/amijoy.txt | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/Documentation/input/amijoy.txt b/Documentation/input/amijoy.txt new file mode 100644 index 00000000..7dc4f175 --- /dev/null +++ b/Documentation/input/amijoy.txt @@ -0,0 +1,184 @@ +Amiga 4-joystick parport extension +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Parallel port pins: + + (2) - Up1 (6) - Up2 + (3) - Down1 (7) - Down2 + (4) - Left1 (8) - Left2 + (5) - Right1 (9) - Right2 +(13) - Fire1 (11) - Fire2 +(18) - Gnd1 (18) - Gnd2 + +Amiga digital joystick pinout +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +(1) - Up +(2) - Down +(3) - Left +(4) - Right +(5) - n/c +(6) - Fire button +(7) - +5V (50mA) +(8) - Gnd +(9) - Thumb button + +Amiga mouse pinout +~~~~~~~~~~~~~~~~~~ +(1) - V-pulse +(2) - H-pulse +(3) - VQ-pulse +(4) - HQ-pulse +(5) - Middle button +(6) - Left button +(7) - +5V (50mA) +(8) - Gnd +(9) - Right button + +Amiga analog joystick pinout +~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +(1) - Top button +(2) - Top2 button +(3) - Trigger button +(4) - Thumb button +(5) - Analog X +(6) - n/c +(7) - +5V (50mA) +(8) - Gnd +(9) - Analog Y + +Amiga lightpen pinout +~~~~~~~~~~~~~~~~~~~~~ +(1) - n/c +(2) - n/c +(3) - n/c +(4) - n/c +(5) - Touch button +(6) - /Beamtrigger +(7) - +5V (50mA) +(8) - Gnd +(9) - Stylus button + +------------------------------------------------------------------------------- + +NAME rev ADDR type chip Description +JOY0DAT 00A R Denise Joystick-mouse 0 data (left vert, horiz) +JOY1DAT 00C R Denise Joystick-mouse 1 data (right vert,horiz) + + These addresses each read a 16 bit register. These in turn + are loaded from the MDAT serial stream and are clocked in on + the rising edge of SCLK. MLD output is used to parallel load + the external parallel-to-serial converter.This in turn is + loaded with the 4 quadrature inputs from each of two game + controller ports (8 total) plus 8 miscellaneous control bits + which are new for LISA and can be read in upper 8 bits of + LISAID. + Register bits are as follows: + Mouse counter usage (pins 1,3 =Yclock, pins 2,4 =Xclock) + + BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 +JOY0DAT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0 +JOY1DAT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0 + + 0=LEFT CONTROLLER PAIR, 1=RIGHT CONTROLLER PAIR. + (4 counters total). The bit usage for both left and right + addresses is shown below. Each 6 bit counter (Y7-Y2,X7-X2) is + clocked by 2 of the signals input from the mouse serial + stream. Starting with first bit received: + + +-------------------+-----------------------------------------+ + | Serial | Bit Name | Description | + +--------+----------+-----------------------------------------+ + | 0 | M0H | JOY0DAT Horizontal Clock | + | 1 | M0HQ | JOY0DAT Horizontal Clock (quadrature) | + | 2 | M0V | JOY0DAT Vertical Clock | + | 3 | M0VQ | JOY0DAT Vertical Clock (quadrature) | + | 4 | M1V | JOY1DAT Horizontal Clock | + | 5 | M1VQ | JOY1DAT Horizontal Clock (quadrature) | + | 6 | M1V | JOY1DAT Vertical Clock | + | 7 | M1VQ | JOY1DAT Vertical Clock (quadrature) | + +--------+----------+-----------------------------------------+ + + Bits 1 and 0 of each counter (Y1-Y0,X1-X0) may be + read to determine the state of the related input signal pair. + This allows these pins to double as joystick switch inputs. + Joystick switch closures can be deciphered as follows: + + +------------+------+---------------------------------+ + | Directions | Pin# | Counter bits | + +------------+------+---------------------------------+ + | Forward | 1 | Y1 xor Y0 (BIT#09 xor BIT#08) | + | Left | 3 | Y1 | + | Back | 2 | X1 xor X0 (BIT#01 xor BIT#00) | + | Right | 4 | X1 | + +------------+------+---------------------------------+ + +------------------------------------------------------------------------------- + +NAME rev ADDR type chip Description +JOYTEST 036 W Denise Write to all 4 joystick-mouse counters at once. + + Mouse counter write test data: + BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 + JOYxDAT Y7 Y6 Y5 Y4 Y3 Y2 xx xx X7 X6 X5 X4 X3 X2 xx xx + JOYxDAT Y7 Y6 Y5 Y4 Y3 Y2 xx xx X7 X6 X5 X4 X3 X2 xx xx + +------------------------------------------------------------------------------- + +NAME rev ADDR type chip Description +POT0DAT h 012 R Paula Pot counter data left pair (vert, horiz) +POT1DAT h 014 R Paula Pot counter data right pair (vert,horiz) + + These addresses each read a pair of 8 bit pot counters. + (4 counters total). The bit assignment for both + addresses is shown below. The counters are stopped by signals + from 2 controller connectors (left-right) with 2 pins each. + + BIT# 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00 + RIGHT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0 + LEFT Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0 X7 X6 X5 X4 X3 X2 X1 X0 + + +--------------------------+-------+ + | CONNECTORS | PAULA | + +-------+------+-----+-----+-------+ + | Loc. | Dir. | Sym | pin | pin | + +-------+------+-----+-----+-------+ + | RIGHT | Y | RX | 9 | 33 | + | RIGHT | X | RX | 5 | 32 | + | LEFT | Y | LY | 9 | 36 | + | LEFT | X | LX | 5 | 35 | + +-------+------+-----+-----+-------+ + + With normal (NTSC or PAL) horiz. line rate, the pots will + give a full scale (FF) reading with about 500kohms in one + frame time. With proportionally faster horiz line times, + the counters will count proportionally faster. + This should be noted when doing variable beam displays. + +------------------------------------------------------------------------------- + +NAME rev ADDR type chip Description +POTGO 034 W Paula Pot port (4 bit) bi-direction and data, and pot counter start. + +------------------------------------------------------------------------------- + +NAME rev ADDR type chip Description +POTINP 016 R Paula Pot pin data read + + This register controls a 4 bit bi-direction I/O port + that shares the same 4 pins as the 4 pot counters above. + + +-------+----------+---------------------------------------------+ + | BIT# | FUNCTION | DESCRIPTION | + +-------+----------+---------------------------------------------+ + | 15 | OUTRY | Output enable for Paula pin 33 | + | 14 | DATRY | I/O data Paula pin 33 | + | 13 | OUTRX | Output enable for Paula pin 32 | + | 12 | DATRX | I/O data Paula pin 32 | + | 11 | OUTLY | Out put enable for Paula pin 36 | + | 10 | DATLY | I/O data Paula pin 36 | + | 09 | OUTLX | Output enable for Paula pin 35 | + | 08 | DATLX | I/O data Paula pin 35 | + | 07-01 | X | Not used | + | 00 | START | Start pots (dump capacitors,start counters) | + +-------+----------+---------------------------------------------+ + +------------------------------------------------------------------------------- |