From: John Tsiombikas Date: Thu, 30 Jun 2022 04:23:56 +0000 (+0300) Subject: sgikbd initial commit (based on a500kbd: https://github.com/jtsiomb/a500kbd) X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=sgikbd;a=commitdiff_plain;h=5759bf96070a18b9b30a1da5388cb189653ebcd6 sgikbd initial commit (based on a500kbd: https://github.com/jtsiomb/a500kbd) --- 5759bf96070a18b9b30a1da5388cb189653ebcd6 diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..d6308d9 --- /dev/null +++ b/.gitignore @@ -0,0 +1,7 @@ +*.o +*.swp +*.d +*.bak +*.bck +*.dcm +*-cache.lib diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..94a9ed0 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/README.md b/README.md new file mode 100644 index 0000000..467696b --- /dev/null +++ b/README.md @@ -0,0 +1,52 @@ +SGI - PS/2 keyboard and mouse converter +======================================= + +About +----- +This project is a converter for connecting PS/2 keyboards and mice to old +Silicon Graphics computers which had a proprietary keyboard/mouse interface. It +should work on: + + - 4D series machines + - Indigo + - Crimson + - Onyx + +This converter is not necessary, and will not work, for any later SGI machines, +like the indy, O2, indigo2, Octane, and so on, because they use PS/2 keyboards +and mice directly. + +It's based on an AVR atmega 88/168/328 microcontroller, which reads the PS/2 +keyboard and mouse ports, and translates scancodes and events to the protocol +and electrical signalling used by the SGI computers. For details on the +SGI signalling and protocols, see the copy of the keyboard and mouse manpages +from the section 7 of the IRIX manual, under `doc/`. + +Directory structure: + + - `hw` - hardware: kicad files and pdf schematics. + - `fw` - firmware for the AVR microcontroller. + - `doc` - relevant documentation. + +Project website: http://nuclear.mutantstargoat.com/hw/sgikbd + +The hardware design and firmware used my previous +[a500kbd](https://github.com/jtsiomb/a500kbd) project as a base, so if you see +any leftover references to the Amiga anywhere don't be confused. + +License +------- +Copyright (C) 2017-2022 John Tsiombikas + +You are free to use, reproduce, modify, and redistribute any part of this +project, provided you make any derivative work you release, freely available +under the same terms. + +Both hardware designs, and software parts of this project, are released under +the terms of the GNU General Public License v3, or at your option any later +version published by the Free Software Foundation. See `LICENSE` for details. + +To comply with the license, when releasing derivative hardware designs, you must +provide the full EDA project files, and of course firmware/software source code. +Releasing only images of schematics, gerbers, and firmware binaries is *not* +sufficient for compliance. diff --git a/doc/sgi_man7_keyboard b/doc/sgi_man7_keyboard new file mode 100644 index 0000000..38d576d --- /dev/null +++ b/doc/sgi_man7_keyboard @@ -0,0 +1,449 @@ +keyboard(7) + + NAME + + keyboard - keyboard specifications + + DESCRIPTION + + The keyboard used on the 4D series, Indigo, Crimson and Onyx systems is + an up-down encoded 101-key keyboard. + + The keyboard connects to the main electronics cabinet through a shielded + partially coiled cord and is detachable at the system cabinet only. The + mouse plugs into either side of the keyboard. Ports are provided on both + sides of the enclosure to allow access to left-handed and right-handed + mouse connectors. The keyboard cord contains low voltage direct current + power feeds and two serial links; one for the mouse and one for the + keyboard. The keyboard serial link is bidirectional, allowing for + control of indicator lights and other keyboard functions. Each time a + key is pressed or released, a code is sent via the keyboard serial link. + Every key has a different upcode and downcode. All keys function the + same way, allowing the system software to use keys in any manner. Auto- + repeat is the only function that treats keys differently. When auto- + repeat is enabled, a subset of the keys repeat when held down. Multiple + key presses/releases result in all key transitions being reported. + + Electrical Interface + The keyboard serial I/O interface uses RS423 levels and communicates + asynchronously to the system at 600 baud. The format used is one start + bit followed by eight data bits, an odd parity bit and one stop bit, with + one byte sent per key up or down transition. The idle state and true + data bits for the interface are Mark level or -5V, whereas false data + bits and the start bit are spaces or +5V. + + The pin assignments for the keyboard connector on machines with DB-15 + connectors are shown in the following table: + + KEYBOARD CONNECTOR PINOUT + ________________________________ + Pin |_Signal |_Description + 1 | GND | Ground + 2 | GND | Ground + 3 | GND | Ground + 4 | KTXD | Keyboard Transmit + 5 | KRCD | Keyboard Receive + 7 | +12Vdc | Power + 8 | +12Vdc | Power + 9 | +12Vdc | Power + 10 | MTXD | Mouse Transmit + 11 | NC | Reserved + 12 | NC | Reserved + 15 | -12Vdc | Power + + The pin assignments for the DB-9 keyboard connector on the Personal IRIS + 4D/20 and 4D/25 machines are shown in the following table for both the + CPU connector and the connectors on the keyboard itself. The connectors + on each side of the keyboard are identical, so the mouse can be attached + on either side. + + KEYBOARD CABLE PINOUT + ____________________________________________________ + Pin |_CPU Signal |_Keyboard Signal |_Description + 1 | NC | +5Vdc | Power + 2 | KRCD | KTXD | Keyboard to CPU + 3 | NC | -5Vdc | Power + 4 | -12Vdc | -12Vdc | Power + 5 | MRCD | MTXD | Mouse to CPU + 6 | GND | GND | Ground + 7 | +12Vdc | +12Vdc | Power + 8 | KTXD | KRCD | CPU to Keyboard + 9 | GND | GND | Ground + + The pin assignments for the DIN-6 keyboard connector on the CPU board of + some of the newer systems are shown in the following table: + + KEYBOARD CABLE PINOUT + ________________________________ + Pin |_Signal |_Description + 1 | KRCD | Keyboard Receive + 2 | MRCD | Mouse Receive + 3 | GND | Ground + 4 | +8Vdc | Power + 5 | KTXD | Keyboard Transmit + 6 | -8Vdc | Power + + The pin assignments for the mouse port connector (on the keyboard, not on + the CPU) for keyboards with DB9 connector are shown in the following + table; either connector on the keyboard can be used for the mouse or for + the keyboard cable. + + MOUSE PORT + ____________________________ + Pin |_Signal |_Description + 1 | +5V | Power + 3 | -5V | Power + 5 | MTXD | Transmit Data + 9 | GND | Ground + + For machines whose keyboards have the DIN-6 connector on the keyboard, as + well as on the CPU, the pinout is shown in the following table. The + connectors on both sides of the keyboard have identical pinout, either + can be used for the mouse and the cable to the CPU. + + KEYBOARD CONNECTOR PINOUT + ____|________|__________________ + Pin |_Signal |_Description + + 1 KTXD Keyboard Transmit + 2 | MTXD | Mouse Transmit + 3 | GND | Ground + 4 | +8Vdc | Power + 5 | KRCD | Keyboard Receive + 6 | NC | Not Connected + + Software Interface + The interface between the keyboard and the system is 600 baud + asynchronous. The format used is one start bit followed by eight data + bits, an odd parity bit and one stop bit, with one byte sent per key up + or down transition. The MSB of the byte is a 0 for a downstroke and a 1 + for an upstroke. Control bytes are sent to the keyboard with the same + speed and format. The system software does all the processing needed to + support functions such as capitalization, control characters, and numeric + lock. Auto-repeat for a specified set of characters can be turned on or + off by the system software by sending a control byte to the keyboard. + When auto-repeat is enabled, a pressed key begins auto-repeating after + 0.65 seconds and repeats 28 times per second. The keyboard initializes + upon power-up. The configuration request control byte causes the + keyboard to send a two-byte sequence to the system. The second byte + contains the eight-bit value set on a DIP switch in the keyboard. All + keyboard lights (if any; some newer systems have keyboards without user + controllable lights) are controlled by the system software by sending + control bytes to the keyboard to turn them on or off. Control bytes are + also used for long and short beep control and key click disable. When + key click is enabled, the keys click when they are pressed. The long + beep duration is 1 second and the short beep duration is 0.2 second. + There are three lights labeled NUM LOCK, CAPS LOCK, and SCROLL LOCK that + are under software control. On older keyboards there are also four + general-purpose keyboard lights labeled L1 through L4. The required + keycode mappings and control byte formats are shown in the following + tables. Note that the legend names prefixed by two asterisks are + reserved and not implemented on the keyboard. Legend names prefixed by + two exclamation marks do NOT have the auto-repeat enable capability. + Legend names prefixed by two dollar signs do NOT have the key click + enable capability. + + LEGENDS VS KEYCODES IN DECIMAL + _____________________________________________ + ________Legend |________Code + AKEY | 10 + BKEY | 35 + CKEY | 27 + DKEY | 17 + EKEY | 16 + FKEY | 18 + GKEY | 25 + HKEY | 26 + IKEY | 39 + JKEY 33 + KKEY | 34 + LKEY | 41 + MKEY | 43 + NKEY | 36 + OKEY | 40 + PKEY | 47 + QKEY | 9 + RKEY | 23 + SKEY | 11 + TKEY | 24 + UKEY | 32 + VKEY | 28 + WKEY | 15 + XKEY | 20 + YKEY | 31 + ZKEY | 19 + ZEROKEY | 45 + ONEKEY | 7 + TWOKEY | 13 + THREEKEY | 14 + FOURKEY | 21 + FIVEKEY | 22 + SIXKEY | 29 + SEVENKEY | 30 + EIGHTKEY | 37 + NINEKEY | 38 + + LEGENDS VS KEYCODES IN DECIMAL + ____________________________________ + ________Legend |____Code + **!!BREAKKEY | 0 + **!!SETUPKEY | 1 + $$!!LEFTCTRL | 2 + $$!!CAPSLOCKKEY | 3 + $$!!RIGHTSHIFTKEY | 4 + $$!!LEFTSHIFTKEY | 5 + **!!NOSCRLKEY | 12 + !!ESCKEY | 6 + !!TABKEY | 8 + RETURN.ENTER | 50 + SPACEKEY | 82 + **LINEFEEDKEY | 59 + BACKSPACEKEY | 60 + DELKEY | 61 + SEMICOLONKEY | 42 + PERIODKEY | 51 + COMMAKEY | 44 + QUOTEKEY" | 49 + ACCENTGRAVEKEY~ | 54 + + MINUSKEY 46 + VIRGULEKEY? | 52 + BACKSLASHKEY | 56 + EQUALKEY | 53 + LEFTBRACKETKEY | 48 + RIGHTBRACKETKEY | 55 + LEFTARROWKEY | 72 + DOWNARROWKEY | 73 + RIGHTARROWKEY | 79 + UPARROWKEY | 80 + PAD0 | 58 + PAD1 | 57 + PAD2 | 63 + PAD3 | 64 + PAD4 | 62 + PAD5 | 68 + PAD6 | 69 + + LEGENDS VS KEYCODES IN DECIMAL + ______________________________________ + ________Legend |_____Code + PAD7 | 66 + PAD8 | 67 + PAD9 | 74 + **PADPF1 | 71 + **PADPF2 | 70 + **PADPF3 | 78 + **PADPF4 | 77 + PADPERIOD | 65 + PADMINUS | 75 + **PADCOMMA | 76 + !!PADENTER | 81 + $$!!LEFTALT | 83 + $$!!RIGHTALT | 84 + $$!!RIGHTCTRL | 85 + F1 | 86 + F2 | 87 + F3 | 88 + F4 | 89 + F5 | 90 + F6 | 91 + F7 | 92 + F8 | 93 + F9 | 94 + F10 | 95 + F11 | 96 + F12 | 97 + !!PRINT.SCREEN | 98 + $$!!SCROLL.LOCK | 99 + !!PAUSE | 100 + + !!INSERT 101 + !!HOME | 102 + !!PAGEUP | 103 + !!END | 104 + !!PAGEDOWN | 105 + $$!!NUM.LOCK | 106 + PAD.BKSLASH/ | 107 + + LEGENDS VS KEYCODES IN DECIMAL + ____________________________________ + __________Legend |__Code + PAD.ASTER* | 108 + PAD.PLUS+ | 109 + config byte(1st of 2 bytes) | 110 + config byte(2nd of 2 bytes) | DIP SW + GERlessThan | 111 + spare1 | 112 + spare2 | 113 + spare3 | 114 + spare4 | 115 + spare6 | 117 + spare7 | 118 + spare8 | 119 + spare9 | 120 + spare10 | 121 + + KEYCODES IN DECIMAL VS LEGENDS + ____________________________________ + ___Code |_________Legend + 0 | **BREAKKEY + 1 | **!!SETUPKEY + 2 | $$!!LEFTCTRL + 3 | $$!!CAPSLOCKKEY + 4 | $$!!RIGHTSHIFTKEY + 5 | $$!!LEFTSHIFTKEY + 6 | !!ESCKEY + 7 | ONEKEY + 8 | !!TABKEY + 9 | QKEY + 10 | AKEY + 11 | SKEY + 12 | **!!NOSCRLKEY + 13 | TWOKEY + 14 | THREEKEY + 15 | WKEY + 16 | EKEY + 17 | DKEY + 18 | FKEY + 19 | ZKEY + 20 | XKEY + + 21 FOURKEY + 22 | FIVEKEY + 23 | RKEY + 24 | TKEY + 25 | GKEY + 26 | HKEY + 27 | CKEY + 28 | VKEY + 29 | SIXKEY + 30 | SEVENKEY + 31 | YKEY + 32 | UKEY + 33 | JKEY + 34 | KKEY + 35 | BKEY + + KEYCODES IN DECIMAL VS LEGENDS + ______________________________________ + ____Code |_________Legend + 36 | NKEY + 37 | EIGHTKEY + 38 | NINEKEY + 39 | IKEY + 40 | OKEY + 41 | LKEY + 42 | SEMICOLONKEY + 43 | MKEY + 44 | COMMAKEY + 45 | ZEROKEY + 46 | MINUSKEY + 47 | PKEY + 48 | LEFTBRACKET + 49 | QUOTEKEY + 50 | RETURN.ENTER + 51 | PERIODKEY + 52 | VIRGULEKEY + 53 | EQUALKEY + 54 | ACCENTGRAVEKEY + 55 | RIGHTBRACKETKEY + 56 | BACKSLASHKEY + 57 | PADONEKEY + 58 | PADZEROKEY + 59 | **LINEFEEDKEY + 60 | BACKSPACEKEY + 61 | DELETEKEY + 62 | PADFOURKEY + 63 | PADTWOKEY + 64 | PADTHREEKEY + 65 | PADPERIODKEY + 66 | PADSEVENKEY + + 67 PADEIGHTKEY + 68 | PADFIVEKEY + 69 | PADSIXKEY + 70 | **PADPF2KEY + 71 | **PADPF1KEY + + KEYCODES IN DECIMAL VS LEGENDS + ______________________________________ + ____Code |_________Legend + 72 | LEFTARROWKEY + 73 | DOWNARROWKEY + 74 | PADNINEKEY + 75 | PADMINUSKEY + 76 | **PADCOMMAKEY + 77 | **PADPF4KEY + 78 | **PADPF3KEY + 79 | RIGHTARROWKEY + 80 | UPARROWKEY + 81 | !!PADENTERKEY + 82 | SPACEKEY + 83 | $$!!LEFTALT + 84 | $$!!RIGHTALT + 85 | $$!!RIGHTCTRL + 86 | F1 + 87 | F2 + 88 | F3 + 89 | F4 + 90 | F5 + 91 | F6 + 92 | F7 + 93 | F8 + 94 | F9 + 95 | F10 + 96 | F11 + 97 | F12 + 98 | !!PRINT.SCREEN + 99 | $$!!SCROLL.LOCK + 100 | !!PAUSE + 101 | !!INSERT + 102 | !!HOME + 103 | !!PAGEUP + 104 | !!END + 105 | !!PAGEDOWN + 106 | $$!!NUM.LOCK + 107 | PAD.BKSLASH/ + + KEYCODES IN DECIMAL VS LEGENDS + ____________________________________ + _Code |___________Legend + 108 | PAD.ASTER* + + 109 PAD.PLUS+ + 110 | config byte(1st of 2 bytes) + DIP SW | config byte(2nd of 2 bytes) + + CONTROL BYTES RECOGNIZED BY KEYBOARD + _________________________________________________________ + BIT | DESCRIPTION + TRUE |_________BIT 0 = 0 |_______BIT 0 = 1 + 1 | short beep | complement ds1 and ds2 + 2 | long beep | ds3 + 3 | click disable | ds4 + 4 | return configuration byte | ds5 + 5 | ds1 | ds6 + 6 | ds2 | ds7 + 7 | enable auto-repeat | not used + + DISPLAY LABELS + _________________________________ + DISPLAY DESIGNATION |____LABEL + ds1 | NUM LOCK + ds2 | CAPS LOCK + ds3 | SCROLL LOCK + ds4 | L1 + ds5 | L2 + ds6 | L3 + ds7 | L4 + + NOTE + + Indy, Indigo2, O2, OCTANE and Onyx2 use a PS/2 style keyboard (detailed + in pckeyboard(7)) that uses a different scan code set. This difference + may break compatibility for some programs that operate with raw scan + codes. + + SEE ALSO + + keyboard(1), mouse(7), pckeyboard(7), pcmouse(7). diff --git a/doc/sgi_man7_mouse b/doc/sgi_man7_mouse new file mode 100644 index 0000000..ee216cd --- /dev/null +++ b/doc/sgi_man7_mouse @@ -0,0 +1,41 @@ +mouse(7) + + NAME + + mouse - mouse specifications + + DESCRIPTION + + A serial mouse is used on the SGI 4D series, Indigo, Crimson and Onyx + systems. This mouse differs from other systems which use the mouse + described in pcmouse(7). + + Signals + The serial data interface signal level is compatible with RS-423, which + has roughly a 10V swing centered about ground. The idle state and true + data bits for the interface are Mark level or -5V whereas false data bits + and the start bit are spaces or +5V. The serial data is transmitted at + 4800 baud with one start bit, eight data bits, and no parity. + + Protocol + The mouse provides a five-byte data block whenever there is a change of + position or button state. The first byte is a sync byte that has its + upper five bits set to 10000 and its lower three bits indicating the + button states where a 0 indicates depression. The sync byte looks like + this: 10000LMR. The next four bytes contain two difference updates of + the mouse's change in position: X1, Y1, X2, and Y2. Positive values + indicate movement to the right or upward. System software ignores bytes + beyond the first five until reception of the next sync byte. + + Pinout + The pinout of the mouse connector on the keyboard is on the keyboard(7) + reference page. + + NOTE + + Indy, Indigo2, O2, OCTANE and Onyx2 use a PS/2 style mouse, which is + described in pcmouse(7). + + SEE ALSO + + keyboard(7), pckeyboard(7), pcmouse(7). diff --git a/fw/Makefile b/fw/Makefile new file mode 100644 index 0000000..76aa14b --- /dev/null +++ b/fw/Makefile @@ -0,0 +1,38 @@ +src = $(wildcard src/*.c) +obj = $(src:.c=.o) +bin = sgikbd +hex = $(bin).hex +eep = $(bin).eep + +mcu_gcc = atmega168 +mcu_dude = m168 + +CC = avr-gcc +OBJCOPY = avr-objcopy + +CFLAGS = -Os -pedantic -Wall -mmcu=$(mcu_gcc) -DF_CPU=14745600 +LDFLAGS = -Wl,-Map,$(bin).map -mmcu=$(mcu_gcc) -lprintf_min + +.PHONY: all +all: $(hex) $(eep) + +$(bin): $(obj) + $(CC) -o $@ $(obj) $(LDFLAGS) + +$(hex): $(bin) + $(OBJCOPY) -j .text -j .data -O ihex -R .eeprom $< $@ + +$(eep): $(bin) + $(OBJCOPY) -j .eeprom --change-section-lma .eeprom=0 -O ihex $< $@ + +.PHONY: fuses +fuses: + avrdude -c usbtiny -p $(mcu_dude) -U lfuse:w:0xe6:m -U hfuse:w:0xdf:m -U efuse:w:0xf9:m + +.PHONY: program +program: $(hex) + avrdude -c usbtiny -p $(mcu_dude) -e -U flash:w:$(hex) + +.PHONY: clean +clean: + rm -f $(bin) $(obj) $(hex) $(eep) $(bin).map diff --git a/fw/src/defs.h b/fw/src/defs.h new file mode 100644 index 0000000..8fe204e --- /dev/null +++ b/fw/src/defs.h @@ -0,0 +1,29 @@ +#ifndef DEFS_H_ +#define DEFS_H_ + +#include + +/* pin assignments: + * D2 PS/2 clock (INT0) + * D3 amikbd clock (INT1) + * D4 PS/2 data + * D5 amikbd data + * D6 amiga reset + * D7 amiga drvled in + */ + +#define PCLK 2 +#define ACLK 3 +#define PDATA 4 +#define ADATA 5 +#define ARST 6 +#define ADRVLED 7 + +#define PCLK_BIT (1 << PCLK) +#define ACLK_BIT (1 << ACLK) +#define PDATA_BIT (1 << PDATA) +#define ADATA_BIT (1 << ADATA) +#define ARST_BIT (1 << ARST) +#define ADRVLED_BIT (1 << ADRVLED) + +#endif /* DEFS_H_ */ diff --git a/fw/src/main.c b/fw/src/main.c new file mode 100644 index 0000000..9563de4 --- /dev/null +++ b/fw/src/main.c @@ -0,0 +1,152 @@ +#include +#include +#include +#include +#include +#include "serial.h" +#include "scantbl.h" +#include "ps2kbd.h" +#include "amigakb.h" +#include "defs.h" +#include "timer.h" + +enum { + KF_BRK = 1, + KF_EXT = 2, + KF_EXT1 = 4, + + KF_CTRL = 16, + KF_LAMIGA = 32, + KF_RAMIGA = 64 +}; +#define KF_TRANSIENT 0x0f +#define KF_STICKY 0xf0 + +#define RESET_WAIT 1000 + +static unsigned char led_state; + +int main(void) +{ + unsigned int keyflags = 0; + unsigned char c, keycode, prev_drvled = 0; + int press; + + /* disable all pullups globally */ + MCUCR |= 1 << PUD; + + DDRD = 0; + PORTD = 0; + EIMSK = 0; /* mask external interrupts */ + EICRA = (1 << ISC11) | (1 << ISC01); /* falling edge interrupts */ + + init_timer(); + + /* initialize the UART and enable interrupts */ + init_serial(9600); + sei(); + + printf("PS/2 keyboard controller - John Tsiombikas \r\n"); + + EIMSK = (1 << INT0) | (1 << INT1); /* enable ps/2 clock interrupt */ + + ps2setled(0); /* start with all LEDs off */ + + for(;;) { + while(!ps2pending()) { + unsigned char drvled = PIND & ADRVLED_BIT; + if(drvled != prev_drvled) { + prev_drvled = drvled; + if(drvled) { + led_state |= PS2LED_SCRLK; + } else { + led_state &= ~PS2LED_SCRLK; + } + ps2setled(led_state); + } + } + + c = ps2read(); + switch(c) { + case 0xe0: /* extended */ + keyflags |= KF_EXT; + break; + + case 0xe1: /* extended */ + keyflags |= KF_EXT1; + break; + + case 0xf0: /* break code */ + keyflags |= KF_BRK; + break; + + default: + press = !(keyflags & KF_BRK); + + keycode = 0xff; + if(keyflags & KF_EXT) { + if(c < KEYMAP_EXT_SIZE) { + keycode = keymap_ext[(int)c]; + } + } else if(keyflags & KF_EXT1) { + } else { + if(c < KEYMAP_NORMAL_SIZE) { + keycode = keymap_normal[(int)c]; + } + } + + switch(keycode) { + case AMIKEY_CTRL: + if(press) + keyflags |= KF_CTRL; + else + keyflags &= ~KF_CTRL; + break; + + case AMIKEY_LAMI: + if(press) + keyflags |= KF_LAMIGA; + else + keyflags &= ~KF_LAMIGA; + break; + + case AMIKEY_RAMI: + if(press) + keyflags |= KF_RAMIGA; + else + keyflags &= ~KF_RAMIGA; + break; + + default: + break; + } + + if((keyflags & (KF_CTRL | KF_RAMIGA | KF_LAMIGA)) == (KF_CTRL | KF_RAMIGA | KF_LAMIGA)) { + printf("CTRL - AMIGA - AMIGA!\r\n"); + amikb_reset(); + + keyflags = 0; + + reset_timer(); + while(get_msec() < RESET_WAIT); + ps2clearbuf(); + + break; + } + + if(keycode != 0xff) { + int press = ~keyflags & KF_BRK; + amikb_sendkey(keycode, press); + if(keycode == 0x62 && press) { + led_state ^= PS2LED_CAPSLK; + ps2setled(led_state); + } + /*printf("scancode %x -> [%s] amiga key %xh\r\n", (unsigned int)c, press ? "press" : "release", keycode);*/ + } else { + printf("PS/2 unknown command or keycode: %x\r\n", (unsigned int)c); + } + keyflags &= ~KF_TRANSIENT; + } + } + return 0; +} diff --git a/fw/src/ps2kbd.c b/fw/src/ps2kbd.c new file mode 100644 index 0000000..98d2ae1 --- /dev/null +++ b/fw/src/ps2kbd.c @@ -0,0 +1,199 @@ +#include +#include +#include +#include "ps2kbd.h" +#include "defs.h" +#include "timer.h" + +#define TIMEOUT 100 + +#define BUF_SZ 32 +#define BUF_IDX_MASK (BUF_SZ - 1) +#define NEXT_IDX(x) (((x) + 1) & BUF_IDX_MASK) +static volatile unsigned char keybuf[BUF_SZ]; +static volatile unsigned char key_rd, key_wr; + +static volatile int send_nbits, wait_ack; +static volatile unsigned char send_val, send_par; + +static void abort_send(void); + +int ps2write(unsigned char c) +{ + cli(); + send_nbits = 10; + send_val = c; + send_par = 0; /* init to 0, will be calculated while sending */ + + /* inhibit transmission, hold at least 100us */ + PORTD &= ~PCLK_BIT; + DDRD |= PCLK_BIT; + EIFR |= (1 << INTF0); /* clear pending interrupt due to clock transition */ + sei(); + _delay_us(100); + + /* RTS by data low & release clock (this counts as start bit?) */ + PORTD &= ~PDATA_BIT; + DDRD |= PDATA_BIT; + DDRD &= ~PCLK_BIT; + + reset_timer(); + while(send_nbits > 0) { + if(get_msec() > TIMEOUT) { + abort_send(); + return -1; + } + } + _delay_us(5); + + /* release data line and wait for ack */ + cli(); + wait_ack = 1; + sei(); + DDRD &= ~PDATA_BIT; + reset_timer(); + while(wait_ack) { + if(get_msec() > TIMEOUT) { + abort_send(); + return -1; + } + } + return 0; +} + +static void abort_send(void) +{ + cli(); + send_nbits = 0; + wait_ack = 0; + /* hold clock low for 100us */ + PORTD &= ~PCLK_BIT; + DDRD |= PCLK_BIT; + _delay_us(100); + DDRD &= ~(PCLK_BIT | PDATA_BIT); + EIFR |= (1 << INTF0); /* clear pending interrupt */ + sei(); +} + +unsigned char ps2read(void) +{ + unsigned char key; + + while(key_rd == key_wr) { + } + + cli(); + key = keybuf[key_rd]; + key_rd = NEXT_IDX(key_rd); + sei(); + + return key; +} + +int ps2pending(void) +{ + return key_rd != key_wr; +} + +int ps2wait(unsigned int timeout) +{ + reset_timer(); + while(key_rd == key_wr) { + if(get_msec() >= timeout) return -1; + } + return 0; +} + +#define PS2_ACK 0xfa +#define PS2_RESEND 0xfe +#define PS2_ECHO 0xee + +int ps2setled(unsigned char state) +{ + unsigned char c; + + ps2write(0xed); + reset_timer(); + while(!ps2pending()) { + if(get_msec() >= TIMEOUT) return -1; + } + c = ps2read(); + /*printf("ps2setled 1st response: %x\r\n", (unsigned int)c);*/ + if(c != PS2_ACK) return -1; + + ps2write(state); + reset_timer(); + while(!ps2pending()) { + if(get_msec() >= TIMEOUT) return -1; + } + c = ps2read(); + /*printf("ps2setled 2nd response: %x\r\n", (unsigned int)c);*/ + if(c != PS2_ACK) return -1; + + return 0; +} + +void ps2clearbuf(void) +{ + key_rd = key_wr; +} + +ISR(INT0_vect) +{ + static unsigned char value, parity; + /*static unsigned char valp;*/ + static int nbits; + + if(wait_ack) { + if(!(PIND & PDATA_BIT)) { + wait_ack = 0; + } + return; + } + + if(send_nbits > 0) { + --send_nbits; + switch(send_nbits) { + case 1: /* parity bit */ + if(send_par & 1) { /* odd number of ones: parity 0 */ + PORTD &= ~PDATA_BIT; + } else { /* even number of ones: parity 1 */ + PORTD |= PDATA_BIT; + } + break; + case 0: /* stop bit: 1 */ + PORTD |= PDATA_BIT; + break; + default: + if(send_val & 1) { + PORTD |= PDATA_BIT; + ++send_par; + } else { + PORTD &= ~PDATA_BIT; + } + send_val >>= 1; + } + + } else { + if(nbits > 0 && nbits < 9) { + value >>= 1; + if(PIND & PDATA_BIT) { + value |= 0x80; + parity ^= 1; + } + }/* else if(nbits == 9) { + valp = (PIND >> PDATA) & 1; + }*/ + if(++nbits >= 11) { + nbits = 0; + + /* check parity */ + /*if((parity & 1) == (valp & 1)) {}*/ + keybuf[key_wr] = (unsigned char)value; + key_wr = NEXT_IDX(key_wr); + + value = 0; + parity = 0; + } + } +} diff --git a/fw/src/ps2kbd.h b/fw/src/ps2kbd.h new file mode 100644 index 0000000..0e79cb6 --- /dev/null +++ b/fw/src/ps2kbd.h @@ -0,0 +1,18 @@ +#ifndef PS2KBD_H_ +#define PS2KBD_H_ + +enum { + PS2LED_SCRLK = 1, + PS2LED_NUMLK = 2, + PS2LED_CAPSLK = 4 +}; + +int ps2write(unsigned char c); +unsigned char ps2read(void); +int ps2pending(void); +int ps2wait(unsigned int timeout); +void ps2clearbuf(void); + +int ps2setled(unsigned char state); + +#endif /* PS2KBD_H_ */ diff --git a/fw/src/scantbl.h b/fw/src/scantbl.h new file mode 100644 index 0000000..22828e7 --- /dev/null +++ b/fw/src/scantbl.h @@ -0,0 +1,129 @@ +#ifndef SCANTBL_H_ +#define SCANTBL_H_ + +/* +enum { + KEY_ESC = 27, + + KEY_F1 = 256, + KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, + KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_SYSRQ, KEY_BRK, + KEY_SCRLK, KEY_CAPSLK, KEY_NUMLK, + + KEY_LSHIFT, KEY_RSHIFT, + KEY_LCTRL, KEY_RCTRL, + KEY_LALT, KEY_RALT, + KEY_LWIN, KEY_RWIN, KEY_MENU, + + KEY_INS, KEY_DEL, KEY_HOME, KEY_END, KEY_PGUP, KEY_PGDOWN, + KEY_LEFT, KEY_RIGHT, KEY_UP, KEY_DOWN, + + KEY_KP_0, KEY_KP_1, KEY_KP_2, KEY_KP_3, KEY_KP_4, + KEY_KP_5, KEY_KP_6, KEY_KP_7, KEY_KP_8, KEY_KP_9, + KEY_KP_DIV, KEY_KP_MUL, KEY_KP_MINUS, KEY_KP_PLUS, + KEY_KP_DOT, KEY_KP_ENTER, + + KEY_MM_WWW_SEARCH, KEY_MM_WWW_FAV, KEY_MM_WWW_REFRESH, KEY_MM_WWW_STOP, + KEY_MM_WWW_FWD, KEY_MM_WWW_BACK, KEY_MM_WWW_HOME, + KEY_MM_PREV, KEY_MM_NEXT, KEY_MM_PLAY, KEY_MM_STOP, KEY_MM_VOLUP, KEY_MM_VOLDOWN, + KEY_MM_MUTE, KEY_MM_CALC, KEY_MM_MYCOMP, KEY_MM_EMAIL, KEY_MM_SELECT, + KEY_APPS, + KEY_ACPI_POWER, KEY_ACPI_SLEEP, KEY_ACPI_WAKEUP +}; +*/ + +#define KEYMAP_NORMAL_SIZE (sizeof keymap_normal / sizeof *keymap_normal) +#if 0 +static int keymap_normal[] = { + 0, KEY_F9, 0, KEY_F5, KEY_F3, KEY_F1, KEY_F2, KEY_F12, /* 00 - 07 */ + 0, KEY_F10, KEY_F8, KEY_F6, KEY_F4, '\t', '`', 0, /* 08 - 0f */ + 0, KEY_LALT, KEY_LSHIFT, 0, KEY_LCTRL, 'Q', '1', 0, /* 10 - 17 */ + 0, 0, 'Z', 'S', 'A', 'W', '2', 0, /* 18 - 1f */ + 0, 'C', 'X', 'D', 'E', '4', '3', 0, /* 20 - 27 */ + 0, ' ', 'V', 'F', 'T', 'R', '5', 0, /* 28 - 2f */ + 0, 'N', 'B', 'H', 'G', 'Y', '6', 0, /* 30 - 37 */ + 0, 0, 'M', 'J', 'U', '7', '8', 0, /* 38 - 3f */ + 0, ',', 'K', 'I', 'O', '0', '9', 0, /* 40 - 47 */ + 0, '.', '/', 'L', ';', 'P', '-', 0, /* 48 - 4f */ + 0, 0, '\'', 0, '[', '=', 0, 0, /* 50 - 57 */ + KEY_CAPSLK, KEY_RSHIFT, '\n', ']', 0, '\\', 0, 0, /* 58 - 5f */ + 0, 0, 0, 0, 0, 0, '\b', 0, /* 60 - 67 */ + 0, KEY_KP_1, 0, KEY_KP_4, KEY_KP_7, 0, 0, 0, /* 68 - 6f */ + KEY_KP_0, KEY_KP_DOT, KEY_KP_2, KEY_KP_5, KEY_KP_6, KEY_KP_8, KEY_ESC, KEY_NUMLK, /* 70 - 77 */ + KEY_F11, KEY_KP_PLUS, KEY_KP_3, KEY_KP_MINUS, KEY_KP_MUL, KEY_KP_9, KEY_SCRLK, 0,/* 78 - 7f */ + 0, 0, 0, KEY_F7 /* 80 - 83 */ +}; +#endif + +/* converts a normal (non-extended) PS/2 scancode to an amiga rawkey value + * caps lock -> control + * ctrl -> amiga + * F12 -> help + */ +static unsigned char keymap_normal[] = { + 0xff, 0x58, 0xff, 0x54, 0x52, 0x50, 0x51, 0x5f, /* 00 - 07: - f9 - f5 f3 f1 f2 f12 */ + 0xff, 0x59, 0x57, 0x55, 0x53, 0x42, 0x00, 0xff, /* 08 - 0f: - f10 f8 f6 f4 tab ` - */ + 0xff, 0x64, 0x60, 0xff, 0x66, 0x10, 0x01, 0xff, /* 10 - 17: - lalt lshift - lctrl(lamiga) Q 1 - */ + 0xff, 0xff, 0x31, 0x21, 0x20, 0x11, 0x02, 0xff, /* 18 - 1f: - - Z S A W 2 - */ + 0xff, 0x33, 0x32, 0x22, 0x12, 0x04, 0x03, 0xff, /* 20 - 27: - C X D E 4 3 - */ + 0xff, 0x40, 0x34, 0x23, 0x14, 0x13, 0x05, 0xff, /* 28 - 2f: - space V F T R 5 - */ + 0xff, 0x36, 0x35, 0x25, 0x24, 0x15, 0x06, 0xff, /* 30 - 37: - N B H G Y 6 - */ + 0xff, 0xff, 0x37, 0x26, 0x16, 0x07, 0x08, 0xff, /* 38 - 3f: - - M J U 7 8 - */ + 0xff, 0x38, 0x27, 0x17, 0x18, 0x0a, 0x09, 0xff, /* 40 - 47: - , K I O 0 9 - */ + 0xff, 0x39, 0x3a, 0x28, 0x29, 0x19, 0x0b, 0xff, /* 48 - 4f: - . / L ; P minus - */ + 0xff, 0xff, 0x2a, 0xff, 0x1a, 0x0c, 0xff, 0xff, /* 50 - 57: - - \ - [ = - - */ + 0x63, 0x61, 0x44, 0x1b, 0xff, 0x0d, 0xff, 0xff, /* 58 - 5f: caps rshift enter ] - \ - - */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x41, 0xff, /* 60 - 67: - - - - - - backsp - */ + 0xff, 0x1d, 0xff, 0x2d, 0x3d, 0xff, 0xff, 0xff, /* 68 - 6f: - KP1 - KP4 KP7 - - - */ + 0x0f, 0x3c, 0x1e, 0x2e, 0x2f, 0x3e, 0x45, 0x5a, /* 70 - 77: KP0 KP. KP2 KP5 KP6 KP8 esc numlk */ + 0xff, 0x5e, 0x1f, 0x4a, 0x5d, 0x3f, 0x62, 0xff, /* 78 - 7f: f11 KP+ KP3 KP- KP* KP9 scrlk(capslock) - */ + 0xff, 0xff, 0xff, 0x56 /* 80 - 83: - - - f7 */ +}; + +#define KEYMAP_EXT_SIZE (sizeof keymap_ext / sizeof *keymap_ext) +#if 0 +static int keymap_ext[] = { + 0, 0, 0, 0, 0, 0, 0, 0, /* 00 - 07 */ + 0, 0, 0, 0, 0, 0, 0, 0, /* 08 - 0f */ + KEY_MM_WWW_SEARCH, KEY_RALT, 0, 0, KEY_RCTRL, KEY_MM_PREV, 0, 0, /* 10 - 17 */ + KEY_MM_WWW_FAV, 0, 0, 0, 0, 0, 0, KEY_LWIN, /* 18 - 1f */ + KEY_MM_WWW_REFRESH, KEY_MM_VOLDOWN, 0, KEY_MM_MUTE, 0, 0, 0, KEY_RWIN, /* 20 - 27 */ + KEY_MM_STOP, 0, 0, KEY_MM_CALC, 0, 0, 0, KEY_APPS, /* 28 - 2f */ + KEY_MM_WWW_FWD, 0, KEY_MM_VOLUP, 0, KEY_MM_PLAY, 0, 0, KEY_ACPI_POWER, /* 30 - 37 */ + KEY_MM_WWW_BACK, 0, KEY_MM_WWW_HOME, KEY_MM_STOP, 0, 0, 0, KEY_ACPI_SLEEP, /* 38 - 3f */ + KEY_MM_MYCOMP, 0, 0, 0, 0, 0, 0, 0, /* 40 - 47 */ + KEY_MM_EMAIL, 0, KEY_KP_DIV, 0, 0, KEY_MM_NEXT, 0, 0, /* 48 - 4f */ + KEY_MM_SELECT, 0, 0, 0, 0, 0, 0, 0, /* 50 - 57 */ + 0, 0, KEY_KP_ENTER, 0, 0, 0, KEY_ACPI_WAKEUP, 0, /* 58 - 5f */ + 0, 0, 0, 0, 0, 0, 0, 0, /* 60 - 67 */ + 0, KEY_END, 0, KEY_LEFT, KEY_HOME, 0, 0, 0, /* 68 - 6f */ + KEY_INS, KEY_DEL, KEY_DOWN, 0, KEY_RIGHT, KEY_UP, 0, 0, /* 70 - 77 */ + 0, 0, KEY_PGDOWN, 0, 0, KEY_PGUP, 0, 0, /* 78 - 7f */ +}; +#endif + +static unsigned char keymap_ext[] = { + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 00 - 07: - - - - - - - - */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 08 - 0f: - - - - - - - - */ + 0xff, 0x65, 0xff, 0xff, 0x67, 0xff, 0xff, 0xff, /* 10 - 17: - ralt - - rctrl(ramiga) - - - */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x66, /* 18 - 1f: - - - - - - - lwin(lamiga) */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x67, /* 20 - 27: - - - - - - - rwin(ramiga) */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 28 - 2f */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 30 - 37 */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 38 - 3f */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 40 - 47 */ + 0xff, 0xff, 0x5c, 0xff, 0xff, 0xff, 0xff, 0xff, /* 48 - 4f: - - KP/ - - - - - */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 50 - 57 */ + 0xff, 0xff, 0x43, 0xff, 0xff, 0xff, 0xff, 0xff, /* 58 - 5f: - - KP_enter - - - - - */ + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 60 - 67 */ + 0xff, 0x1d, 0xff, 0x4f, 0x3d, 0xff, 0xff, 0xff, /* 68 - 6f: - end - left home - - - */ + 0x0f, 0x46, 0x4d, 0xff, 0x4e, 0x4c, 0xff, 0xff, /* 70 - 77: ins del down - right up - - */ + 0xff, 0xff, 0x1f, 0xff, 0xff, 0x3f, 0xff, 0xff /* 78 - 7f: - - pgdown - - pgup - - */ +}; + +/* some useful keycodes */ +#define AMIKEY_CTRL 0x63 +#define AMIKEY_LAMI 0x66 +#define AMIKEY_RAMI 0x67 + +#endif /* SCANTBL_H_ */ diff --git a/fw/src/serial.c b/fw/src/serial.c new file mode 100644 index 0000000..e318b68 --- /dev/null +++ b/fw/src/serial.c @@ -0,0 +1,102 @@ +#ifndef F_CPU +#ifdef XTAL +#define F_CPU XTAL +#else +#warning "compiled for 1mhz internal rc osc. serial comms won't work" +#define F_CPU 1000000 +#endif +#endif + +#include +#include +#include +#include +#include + +static int uart_send_char(char c, FILE *fp); +static int uart_get_char(FILE *fp); + +#define BUF_SZ 16 +#define BUF_IDX_MASK (BUF_SZ - 1) +#define NEXT_IDX(x) (((x) + 1) & BUF_IDX_MASK) +static char outbuf[BUF_SZ]; +static volatile unsigned char out_rd, out_wr; +static char inbuf[BUF_SZ]; +static volatile unsigned char in_rd, in_wr; + +static FILE std_stream = FDEV_SETUP_STREAM(uart_send_char, uart_get_char, _FDEV_SETUP_RW); + + + +void init_serial(long baud) +{ + unsigned int ubrr_val = F_CPU / 16 / baud - 1; + + power_usart0_enable(); + + /* set baud generator timer reset value */ + UBRR0H = (unsigned char)(ubrr_val >> 8); + UBRR0L = (unsigned char)ubrr_val; + + /* enable rx/tx and recv interrupt */ + UCSR0B = (1 << RXEN0) | (1 << TXEN0) | (1 << RXCIE0); + /* set frame format: 8n1 */ + UCSR0C = 3 << UCSZ00; + + stdin = stdout = stderr = &std_stream; +} + +int have_input(void) +{ + return in_wr != in_rd; +} + +static int uart_send_char(char c, FILE *fp) +{ + /*int next;*/ + + while((UCSR0A & (1 << UDRE0)) == 0); + UDR0 = (unsigned char)c; +#if 0 + next = NEXT_IDX(out_wr); + while(next == out_rd); + + outbuf[out_wr] = c; + out_wr = next; + + /* enable the Tx data register empty interrupt */ + UCSR0B |= 1 << UDRIE0; +#endif + return 0; +} + +static int uart_get_char(FILE *fp) +{ + char c; + + while(in_rd == in_wr); + + c = inbuf[in_rd]; + in_rd = NEXT_IDX(in_rd); + return c; +} + +ISR(USART_RX_vect) +{ + char c = UDR0; + + inbuf[in_wr] = c; + in_wr = NEXT_IDX(in_wr); +} + +/* USART Tx data register empty (can send more data) */ +ISR(USART_UDRE_vect) +{ + if(out_rd != out_wr) { + UDR0 = outbuf[out_rd]; + out_rd = NEXT_IDX(out_rd); + } else { + /* no more data to send for now, disable the interrupt */ + UCSR0B &= ~(1 << UDRIE0); + } +} diff --git a/fw/src/serial.h b/fw/src/serial.h new file mode 100644 index 0000000..615626e --- /dev/null +++ b/fw/src/serial.h @@ -0,0 +1,7 @@ +#ifndef SERIAL_H_ +#define SERIAL_H_ + +void init_serial(long baud); +int have_input(void); + +#endif /* SERIAL_H_ */ diff --git a/fw/src/timer.c b/fw/src/timer.c new file mode 100644 index 0000000..c73326e --- /dev/null +++ b/fw/src/timer.c @@ -0,0 +1,35 @@ +#include +#include +#include +#include "timer.h" + +#define PRESCL_256 4 +/* 256 ticks per interrupt, 256 clock divisor */ +#define TICKS_PER_SEC (F_CPU / 256 / 256) + +static volatile unsigned long ticks; + +void init_timer(void) +{ + power_timer0_enable(); + + TCCR0A = 0; + TCCR0B = PRESCL_256; + + TIMSK0 |= (1 << TOIE0); /* enable ovf intr. */ +} + +void reset_timer(void) +{ + ticks = 0; +} + +unsigned long get_msec(void) +{ + return 1000 * ticks / TICKS_PER_SEC; +} + +ISR(TIMER0_OVF_vect) +{ + ++ticks; +} diff --git a/fw/src/timer.h b/fw/src/timer.h new file mode 100644 index 0000000..76a4ad1 --- /dev/null +++ b/fw/src/timer.h @@ -0,0 +1,8 @@ +#ifndef TIMER_H_ +#define TIMER_H_ + +void init_timer(void); +void reset_timer(void); +unsigned long get_msec(void); + +#endif /* TIMER_H_ */ diff --git a/hw/sgikbd.lib b/hw/sgikbd.lib new file mode 100644 index 0000000..35a5402 --- /dev/null +++ b/hw/sgikbd.lib @@ -0,0 +1,39 @@ +EESchema-LIBRARY Version 2.3 +#encoding utf-8 +# +# a500kbd_conn +# +DEF a500kbd_conn U 0 40 Y Y 1 F N +F0 "U" -250 -400 60 H V C CNN +F1 "a500kbd_conn" 250 50 60 V V C CNN +F2 "" 300 -650 60 H I C CNN +F3 "" 300 -650 60 H I C CNN +DRAW +S -300 250 200 -350 0 1 0 N +X CLK 1 -500 100 200 R 50 50 1 1 P +X DATA 2 -500 200 200 R 50 50 1 1 P +X RESET 3 -500 -50 200 R 50 50 1 1 P +X +5v 4 100 450 200 D 50 50 1 1 P +X GND 6 100 -550 200 U 50 50 1 1 P +X STLED 7 -500 -200 200 R 50 50 1 1 P +X DRVLED 8 -500 -300 200 R 50 50 1 1 P +ENDDRAW +ENDDEF +# +# ps2conn +# +DEF ps2conn U 0 40 Y Y 1 F N +F0 "U" -250 -250 60 H V C CNN +F1 "ps2conn" 150 0 60 V V C CNN +F2 "" 0 0 60 H I C CNN +F3 "" 0 0 60 H I C CNN +DRAW +S -300 200 100 -200 0 1 0 N +X DATA 1 -500 100 200 R 50 50 1 1 P +X GND 3 0 -400 200 U 50 50 1 1 P +X VCC 4 0 400 200 D 50 50 1 1 P +X CLK 5 -500 -100 200 R 50 50 1 1 P +ENDDRAW +ENDDEF +# +#End Library diff --git a/hw/sgikbd.pro b/hw/sgikbd.pro new file mode 100644 index 0000000..2c35962 --- /dev/null +++ b/hw/sgikbd.pro @@ -0,0 +1,30 @@ +update=Mon 05 Oct 2020 01:13:11 PM EEST +version=1 +last_client=kicad +[pcbnew] +version=1 +LastNetListRead= +UseCmpFile=1 +PadDrill=0.600000000000 +PadDrillOvalY=0.600000000000 +PadSizeH=1.500000000000 +PadSizeV=1.500000000000 +PcbTextSizeV=1.500000000000 +PcbTextSizeH=1.500000000000 +PcbTextThickness=0.300000000000 +ModuleTextSizeV=1.000000000000 +ModuleTextSizeH=1.000000000000 +ModuleTextSizeThickness=0.150000000000 +SolderMaskClearance=0.000000000000 +SolderMaskMinWidth=0.000000000000 +DrawSegmentWidth=0.200000000000 +BoardOutlineThickness=0.100000000000 +ModuleOutlineThickness=0.150000000000 +[cvpcb] +version=1 +NetIExt=net +[general] +version=1 +[eeschema] +version=1 +LibDir= diff --git a/hw/sgikbd.sch b/hw/sgikbd.sch new file mode 100644 index 0000000..488d10c --- /dev/null +++ b/hw/sgikbd.sch @@ -0,0 +1,609 @@ +EESchema Schematic File Version 4 +EELAYER 30 0 +EELAYER END +$Descr A4 11693 8268 +encoding utf-8 +Sheet 1 1 +Title "SGI - PS/2 keyboard and mouse converter" +Date "2017-10-11" +Rev "1" +Comp "Mutant Stargoat" +Comment1 "Creative Commons Attribution Share-Alike (CC BY-SA)" +Comment2 "Copyright (C) 2017-2022 John Tsiombikas " +Comment3 "" +Comment4 "" +$EndDescr +$Comp +L sgikbd-rescue:ps2conn U3 +U 1 1 59DD9993 +P 7700 3950 +F 0 "U3" H 7450 3700 60 0000 C CNN +F 1 "ps2conn" V 7850 3950 60 0000 C CNN +F 2 "" H 7700 3950 60 0001 C CNN +F 3 "" H 7700 3950 60 0001 C CNN + 1 7700 3950 + 0 1 -1 0 +$EndComp +$Comp +L sgikbd-rescue:ATMEGA88-20PU U1 +U 1 1 59DD9A9D +P 4800 3800 +F 0 "U1" H 3950 5100 50 0000 L BNN +F 1 "ATMEGA88-20PU" H 5150 2450 50 0000 L BNN +F 2 "DIL28" H 4800 3800 50 0001 C CIN +F 3 "" H 4800 3800 50 0001 C CNN + 1 4800 3800 + 1 0 0 -1 +$EndComp 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