Totally untested Sega Saturn support
This commit is contained in:
parent
c692d6d534
commit
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@ -329,6 +329,49 @@ src_filter = ${in-gc-micro.src_filter} ${out-switchusb.src_filter}
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build_flags = ${in-gc-micro.build_flags} ${out-switchusb.build_flags}
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lib_deps = ${in-gc-micro.lib_deps}, ${out-switchusb.lib_deps}
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# saturn input
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[in-saturn]
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src_filter = -<*> +<SegaSaturn.cpp>
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build_flags = ${common.build_flags} -DGAMEPAD_INPUT=6
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[env:esp32-saturn-bt]
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extends = esp32, in-saturn, out-bt
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src_filter = ${in-saturn.src_filter} ${out-bt.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-bt.build_flags}
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[env:esp32-saturn-debug]
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extends = esp32, in-saturn, out-debug
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src_filter = ${in-saturn.src_filter} ${out-debug.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-debug.build_flags}
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[env:micro-saturn-usb]
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extends = micro, in-saturn, out-usb
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src_filter = ${in-saturn.src_filter} ${out-usb.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-usb.build_flags}
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[env:micro-saturn-debug]
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extends = micro, in-saturn, out-debug
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src_filter = ${in-saturn.src_filter} ${out-debug.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-debug.build_flags}
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# micro doesn't have enough pins for both radio and 2 gamepads
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# so these must be built with only support for 1 gamepad
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[env:micro-saturn-radio]
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extends = micro, in-saturn, out-radio
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src_filter = ${in-saturn.src_filter} ${out-radio.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-radio.build_flags} -DGAMEPAD_COUNT=1
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[env:micro-saturn-usbradio]
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extends = micro, in-saturn, out-usbradio
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src_filter = ${in-saturn.src_filter} ${out-usbradio.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-usbradio.build_flags} -DGAMEPAD_COUNT=1
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[env:micro-saturn-switchusb]
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extends = micro, in-saturn, out-switchusb
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src_filter = ${in-saturn.src_filter} ${out-switchusb.src_filter}
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build_flags = ${in-saturn.build_flags} ${out-switchusb.build_flags}
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# debug input
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56
readme.md
56
readme.md
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@ -14,7 +14,7 @@ Build using [PlatformIO](https://platformio.org/) using `pio run` or `pio run -e
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env's are laid out like `$board-$input-$output`
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supported values:
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* $board: micro, esp32
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* $input: snes, genesis, psx, n64, gc, radio, debug
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* $input: snes, genesis, saturn, psx, n64, gc, radio, debug
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* $output: radio, usb, usbradio, switchusb, bt, debug
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* please note not all boards are compatible with all inputs/outputs, for example esp32 can only do bt, micro can only do radio or usb
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@ -33,33 +33,33 @@ Wiring
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| DB-25 Pins | Arduino Pro Micro GPIO | ESP32 GPIO | Radio | SNES | PSX | N64 | Gamecube | Genesis | Dreamcast |
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|---------------|------------------------|------------|----------|---------|--------|----------|----------|-------------|-----------|
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| 1 TX | 1 | 19 | - | LATCH | - | - | - | P1-1 | P1-DATA1 |
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| 2 SDA | 2 | 21 | - | CLOCK | DATA | P1-DATA | P1-DATA | P1-3 | P1-DATA5 |
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| 3 SCL | 3 | 22 | - | P1-DATA | CMD | - | - | P1-4 | - |
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| 4 Analog | 4 | 15 | - | P2-DATA | ATT | - | - | P1-6 | - |
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| 5 Digital | 5 | 16 | - | P3-DATA | CLK | - | - | P1-7 | - |
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| 6 Analog | 6 | 2 | - | P4-DATA | - | - | - | P1-9 | - |
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| 7 Digital | 7 | 17 | CE | - | - | - | - | P2-7* | - |
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| 8 Analog | 8 | 4 | CSN | - | - | - | - | - | - |
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| 9 Analog | 9 > 1k Ω | 35 > 1k Ω | - | 330 Ω | 100 Ω | 220 Ω | 680 Ω | 470 Ω | 820 Ω |
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| 10 Analog | 10 | 32 | - | - | - | - | - | - | - |
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| 11 RX | 0 | 18 | - | - | - | - | - | P1-2 | - |
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| 12 - | - | - | - | - | - | - | - | - | - |
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| 13 - | - | - | - | - | - | - | - | - | - |
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| 14 MISO | 14 | 12 | MISO | - | - | - | - | P2-6* | - |
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| 15 SCLK | 15 | 14 | SCLK | - | - | - | - | P2-9* | - |
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| 16 MOSI | 16 | 13 | MOSI | - | - | - | - | - | - |
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| 17 - | - | - | - | - | - | - | - | - | - |
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| 18 Analog | 18 | 27 | - | - | - | - | - | P2-1 | - |
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| 19 Analog | 19 | 26 | - | - | - | - | - | P2-2 | - |
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| 20 Analog | 20 | 25 | - | - | - | - | - | P2-3 | - |
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| 21 Analog | 21 | 33 | - | - | - | - | - | P2-4 | - |
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| 22 - | - | - | - | - | - | - | - | - | - |
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| 23 3.3V VCC | - | 3.3V VCC | 3.3V VCC | - | - | 3.3V VCC | 3.3V VCC | - | - |
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| 24 5V VCC | 5V VCC OUT | 5V VCC | 5V VCC | 5V VCC | 5V VCC | - | 5V VCC | PX-5 5V VCC | 5V VCC |
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| 25 GND | GND | GND | GND | GND | - | GND | GND | PX-8 GND | GND |
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| DB-25 Pins | Arduino Pro Micro GPIO | ESP32 GPIO | Radio | SNES | PSX | N64 | Gamecube | Genesis | Dreamcast | Saturn |
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|---------------|------------------------|------------|----------|---------|--------|----------|----------|-------------|-----------|-------------|
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| 1 TX | 1 | 19 | - | LATCH | - | - | - | P1-1 | P1-DATA1 | P1-7 |
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| 2 SDA | 2 | 21 | - | CLOCK | DATA | P1-DATA | P1-DATA | P1-3 | P1-DATA5 | P1-2 |
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| 3 SCL | 3 | 22 | - | P1-DATA | CMD | - | - | P1-4 | - | P1-3 |
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| 4 Analog | 4 | 15 | - | P2-DATA | ATT | - | - | P1-6 | - | P1-6 |
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| 5 Digital | 5 | 16 | - | P3-DATA | CLK | - | - | P1-7 | - | |
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| 6 Analog | 6 | 2 | - | P4-DATA | - | - | - | P1-9 | - | P2-6 |
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| 7 Digital | 7 | 17 | CE | - | - | - | - | P2-7* | - | |
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| 8 Analog | 8 | 4 | CSN | - | - | - | - | - | - | |
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| 9 Analog | 9 > 1k Ω | 35 > 1k Ω | - | 330 Ω | 100 Ω | 220 Ω | 680 Ω | 470 Ω | 820 Ω | TODO |
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| 10 Analog | 10 | 32 | - | - | - | - | - | - | - | |
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| 11 RX | 0 | 18 | - | - | - | - | - | P1-2 | - | P1-8 |
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| 12 - | - | - | - | - | - | - | - | - | - | |
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| 13 - | - | - | - | - | - | - | - | - | - | |
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| 14 MISO | 14 | 12 | MISO | - | - | - | - | P2-6* | - | PX-5 |
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| 15 SCLK | 15 | 14 | SCLK | - | - | - | - | P2-9* | - | PX-4 |
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| 16 MOSI | 16 | 13 | MOSI | - | - | - | - | - | - | |
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| 17 - | - | - | - | - | - | - | - | - | - | |
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| 18 Analog | 18 | 27 | - | - | - | - | - | P2-1 | - | P2-7 |
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| 19 Analog | 19 | 26 | - | - | - | - | - | P2-2 | - | P2-8 |
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| 20 Analog | 20 | 25 | - | - | - | - | - | P2-3 | - | P2-2 |
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| 21 Analog | 21 | 33 | - | - | - | - | - | P2-4 | - | P2-3 |
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| 22 - | - | - | - | - | - | - | - | - | - | |
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| 23 3.3V VCC | - | 3.3V VCC | 3.3V VCC | - | - | 3.3V VCC | 3.3V VCC | - | - | |
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| 24 5V VCC | 5V VCC OUT | 5V VCC | 5V VCC | 5V VCC | 5V VCC | - | 5V VCC | PX-5 5V VCC | 5V VCC | PX-1 5V VCC |
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| 25 GND | GND | GND | GND | GND | - | GND | GND | PX-8 GND | GND | PX-9 GND |
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* 2nd player Genesis is incompatible with Radio because it uses the same pins, 1 player Genesis is compatible
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Ω This is optional and only used for dongle detection. On the microcontroller side, put a 1k resistor between DB-25 pin 9 and VCC (3.3v for ESP32, 5V for Micro). On each controller dongle, put a resistor of the given value between DB-25 pin 9 and GND.
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@ -0,0 +1,228 @@
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/* DaemonBite Saturn USB Adapter
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* Author: Mikael Norrgård <mick@daemonbite.com>
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*
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* Copyright (c) 2020 Mikael Norrgård <http://daemonbite.com>
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*
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* GNU GENERAL PUBLIC LICENSE
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* Version 3, 29 June 2007
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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*/
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#include "Arduino.h"
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#ifndef GAMEPAD_COUNT
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#define GAMEPAD_COUNT 2
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#endif
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#include "gamepad/Gamepad.h"
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#include "pins.h"
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// How many microseconds to wait after setting select lines? (2µs is enough according to the Saturn developer's manual)
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// 20µs is a "safe" value that seems to work for original Saturn controllers and Retrobit wired controllers
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#define SELECT_PAUSE 20
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// Uncomment to support the Retro Bit 2.4GHz wireless controller (this will increase lag a lot)
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//#define RETROBIT_WL
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#define UP 0x01
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#define DOWN 0x02
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#define LEFT 0x04
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#define RIGHT 0x08
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/* -------------------------------------------------------------------------
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Saturn controller socket (looking face-on at the front of the socket):
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___________________
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/ 1 2 3 4 5 6 7 8 9 \
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|___________________|
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Saturn controller plug (looking face-on at the front of the controller plug):
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___________________
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/ 9 8 7 6 5 4 3 2 1 \
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|___________________|
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Saturn (P1) Arduino Pro Micro
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--------------------------------------
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1 VCC VCC - black
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2 DATA1 2 PD1 - white
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3 DATA0 3 PD0 - gray
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4 SEL1 15 PB1 (Shared with P2) - blue
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5 SEL0 14 PB3 (Shared with P2) - green
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6 TL (5V) 4 PD4 - yellow
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7 DATA3 TXO PD3 - orange
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8 DATA2 RXI PD2 - red
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9 GND GND - brown
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Saturn (P2) Arduino Pro Micro
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--------------------------------------
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1 VCC VCC
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2 DATA1 A2 PF5
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3 DATA0 A3 PF4
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4 SEL1 15 PB1 (Shared with P1)
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5 SEL0 14 PB3 (Shared with P1)
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6 TL (5V) 6 PD7
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7 DATA3 A0 PF7
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8 DATA2 A1 PF6
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9 GND GND
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NOTE: The receiver of the Retro Bit 2.4GHz controller needs to be plugged
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in after the adapter has been connected to USB and the RETROBIT_WL
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define needs to be uncommented.
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------------------------------------------------------------------------- */
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// Set up USB HID gamepads
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GAMEPAD_CLASS gamepad;
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// Controllers
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uint8_t buttons[2][2] = {{0, 0}, {0, 0}};
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uint8_t buttonsPrev[2][2] = {{0, 0}, {0, 0}};
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uint8_t gp = 0;
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// Read R, X, Y, Z
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void read1() {
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PORTB &= ~B00001010; // Set select outputs to 00
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delayMicroseconds(SELECT_PAUSE);
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buttons[0][1] |= (PIND & 0x0f) << 4;
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if (GAMEPAD_COUNT == 2)
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buttons[1][1] |= (PINF & 0xf0);
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}
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// Read ST, A, C, B
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void read2() {
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PORTB ^= B00001010; // Toggle select outputs (01->10 or 10->01)
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delayMicroseconds(SELECT_PAUSE);
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buttons[0][1] |= (PIND & 0x0f);
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if (GAMEPAD_COUNT == 2)
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buttons[1][1] |= (PINF & 0xf0) >> 4;
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}
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// Read DR, DL, DD, DU
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void read3() {
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PORTB ^= B00000010; // Set select outputs to 10 from 11 (toggle)
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delayMicroseconds(SELECT_PAUSE);
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buttons[0][0] |= (PIND & 0x0f);
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if (GAMEPAD_COUNT == 2)
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buttons[1][0] |= (PINF & 0xf0) >> 4;
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}
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// Read L, *, *, *
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void read4() {
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PORTB |= B00001010; // Set select outputs to 11
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delayMicroseconds(SELECT_PAUSE);
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buttons[0][0] |= (PIND & 0x0f) << 4;
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if (GAMEPAD_COUNT == 2)
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buttons[1][0] |= (PINF & 0xf0);
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}
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void setup() {
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// Set D0-D3 as inputs and enable pull-up resistors (port1 data pins)
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DDRD &= ~B00001111;
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PORTD |= B00001111;
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// Set F4-F7 as inputs and enable pull-up resistors (port2 data pins)
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DDRF &= ~B11110000;
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PORTF |= B11110000;
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// Set D4 and D7 as inputs and enable pull-up resistors (port1/2 TL)
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DDRD &= ~B10010000;
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PORTD |= B10010000;
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// Set B1 and B3 as outputs and set them HIGH (select pins)
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PORTB |= B00001010;
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DDRB |= B00001010;
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// Wait for the controller(s) to settle
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delay(100);
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}
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void controllerChanged(const int c) {
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// if start and down are held at the same time, send menu and only menu
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gamepad.buttons(c, buttons[gp][1] | ((buttons[gp][0] & 0x80) << 1));
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/* todo:
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if (controllers.down(c, SC_BTN_START) && ((buttons[gp][0] & DOWN) >> 1)) {
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gamepad.buttons(c, 0);
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gamepad.press(c, BUTTON_MENU);
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gamepad.setHatSync(c, DPAD_CENTERED);
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return;
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}
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*/
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if (((buttons[gp][0] & DOWN) >> 1)) {
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if (((buttons[gp][0] & RIGHT) >> 3)) {
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gamepad.setHatSync(c, DPAD_DOWN_RIGHT);
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} else if (((buttons[gp][0] & LEFT) >> 2)) {
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gamepad.setHatSync(c, DPAD_DOWN_LEFT);
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} else {
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gamepad.setHatSync(c, DPAD_DOWN);
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}
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} else if ((buttons[gp][0] & UP)) {
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if (((buttons[gp][0] & RIGHT) >> 3)) {
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gamepad.setHatSync(c, DPAD_UP_RIGHT);
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} else if (((buttons[gp][0] & LEFT) >> 2)) {
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gamepad.setHatSync(c, DPAD_UP_LEFT);
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} else {
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gamepad.setHatSync(c, DPAD_UP);
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}
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} else if (((buttons[gp][0] & RIGHT) >> 3)) {
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gamepad.setHatSync(c, DPAD_RIGHT);
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} else if (((buttons[gp][0] & LEFT) >> 2)) {
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gamepad.setHatSync(c, DPAD_LEFT);
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} else {
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gamepad.setHatSync(c, DPAD_CENTERED);
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}
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}
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void loop() {
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while (1) {
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// Clear button data
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buttons[0][0] = 0;
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buttons[0][1] = 0;
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buttons[1][0] = 0;
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buttons[1][1] = 0;
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// Read all button and axes states
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read3();
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read2();
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read1();
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read4();
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// Invert the readings so a 1 means a pressed button
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buttons[0][0] = ~buttons[0][0];
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buttons[0][1] = ~buttons[0][1];
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buttons[1][0] = ~buttons[1][0];
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buttons[1][1] = ~buttons[1][1];
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// Send data to USB if values have changed
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for (gp = 0; gp < GAMEPAD_COUNT; gp++) {
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// Has any buttons changed state?
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if (buttons[gp][0] != buttonsPrev[gp][0] || buttons[gp][1] != buttonsPrev[gp][1]) {
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/*
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Gamepad[gp]._GamepadReport.buttons = buttons[gp][1] | ((buttons[gp][0] & 0x80)<<1);
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Gamepad[gp]._GamepadReport.Y = ((buttons[gp][0] & DOWN) >> 1) - (buttons[gp][0] & UP);
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Gamepad[gp]._GamepadReport.X = ((buttons[gp][0] & RIGHT) >> 3) - ((buttons[gp][0] & LEFT) >> 2);
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Gamepad[gp].send();
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*/
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controllerChanged(gp);
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buttonsPrev[gp][0] = buttons[gp][0];
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buttonsPrev[gp][1] = buttons[gp][1];
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}
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}
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#ifdef RETROBIT_WL
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// This delay is needed for the retro bit 2.4GHz wireless controller, making it more or less useless with this adapter
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delay(17);
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#endif
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}
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}
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