From 6746e37088ce8ba03529c1226bd216705edb2b1f Mon Sep 17 00:00:00 2001 From: tmk Date: Fri, 10 Apr 2015 01:25:48 +0900 Subject: Remove core library and build files --- protocol/adb.c | 456 --------------------------------------------------------- 1 file changed, 456 deletions(-) delete mode 100644 protocol/adb.c (limited to 'protocol/adb.c') diff --git a/protocol/adb.c b/protocol/adb.c deleted file mode 100644 index bbff66df0..000000000 --- a/protocol/adb.c +++ /dev/null @@ -1,456 +0,0 @@ -/* -Copyright 2011 Jun WAKO -Copyright 2013 Shay Green - -This software is licensed with a Modified BSD License. -All of this is supposed to be Free Software, Open Source, DFSG-free, -GPL-compatible, and OK to use in both free and proprietary applications. -Additions and corrections to this file are welcome. - - -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions are met: - -* Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - -* Redistributions in binary form must reproduce the above copyright - notice, this list of conditions and the following disclaimer in - the documentation and/or other materials provided with the - distribution. - -* Neither the name of the copyright holders nor the names of - contributors may be used to endorse or promote products derived - from this software without specific prior written permission. - -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE -LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR -CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF -SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS -INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN -CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. -*/ - -#include -#include -#include -#include -#include "adb.h" - - -// GCC doesn't inline functions normally -#define data_lo() (ADB_DDR |= (1< - * - */ - -// ADB Bit Cells -// -// bit cell time: 70-130us -// low part of bit0: 60-70% of bit cell -// low part of bit1: 30-40% of bit cell -// -// bit cell time 70us 130us -// -------------------------------------------- -// low part of bit0 42-49 78-91 -// high part of bit0 21-28 39-52 -// low part of bit1 21-28 39-52 -// high part of bit1 42-49 78-91 -// -// -// bit0: -// 70us bit cell: -// ____________~~~~~~ -// 42-49 21-28 -// -// 130us bit cell: -// ____________~~~~~~ -// 78-91 39-52 -// -// bit1: -// 70us bit cell: -// ______~~~~~~~~~~~~ -// 21-28 42-49 -// -// 130us bit cell: -// ______~~~~~~~~~~~~ -// 39-52 78-91 -// -// [from Apple IIgs Hardware Reference Second Edition] - -uint16_t adb_host_kbd_recv(void) -{ - uint16_t data = 0; - cli(); - attention(); - send_byte(0x2C); // Addr:Keyboard(0010), Cmd:Talk(11), Register0(00) - place_bit0(); // Stopbit(0) - if (!wait_data_hi(500)) { // Service Request(310us Adjustable Keyboard): just ignored - sei(); - return -30; // something wrong - } - if (!wait_data_lo(500)) { // Tlt/Stop to Start(140-260us) - sei(); - return 0; // No data to send - } - - uint8_t n = 17; // start bit + 16 data bits - do { - uint8_t lo = (uint8_t) wait_data_hi(130); - if (!lo) - goto error; - - uint8_t hi = (uint8_t) wait_data_lo(lo); - if (!hi) - goto error; - - hi = lo - hi; - lo = 130 - lo; - - data <<= 1; - if (lo < hi) { - data |= 1; - } - else if (n == 17) { - sei(); - return -20; - } - } - while ( --n ); - - // Stop bit can't be checked normally since it could have service request lenghtening - // and its high state never goes low. - if (!wait_data_hi(351) || wait_data_lo(91)) { - sei(); - return -21; - } - sei(); - return data; - -error: - sei(); - return -n; -} - -void adb_host_listen(uint8_t cmd, uint8_t data_h, uint8_t data_l) -{ - cli(); - attention(); - send_byte(cmd); - place_bit0(); // Stopbit(0) - _delay_us(200); // Tlt/Stop to Start - place_bit1(); // Startbit(1) - send_byte(data_h); - send_byte(data_l); - place_bit0(); // Stopbit(0); - sei(); -} - -// send state of LEDs -void adb_host_kbd_led(uint8_t led) -{ - // Addr:Keyboard(0010), Cmd:Listen(10), Register2(10) - // send upper byte (not used) - // send lower byte (bit2: ScrollLock, bit1: CapsLock, bit0: - adb_host_listen(0x2A,0,led&0x07); -} - - -#ifdef ADB_PSW_BIT -static inline void psw_lo() -{ - ADB_DDR |= (1<>i)) - place_bit1(); - else - place_bit0(); - } -} - -// These are carefully coded to take 6 cycles of overhead. -// inline asm approach became too convoluted -static inline uint16_t wait_data_lo(uint16_t us) -{ - do { - if ( !data_in() ) - break; - _delay_us(1 - (6 * 1000000.0 / F_CPU)); - } - while ( --us ); - return us; -} - -static inline uint16_t wait_data_hi(uint16_t us) -{ - do { - if ( data_in() ) - break; - _delay_us(1 - (6 * 1000000.0 / F_CPU)); - } - while ( --us ); - return us; -} - - -/* -ADB Protocol -============ - -Resources ---------- -ADB - The Untold Story: Space Aliens Ate My Mouse - http://developer.apple.com/legacy/mac/library/#technotes/hw/hw_01.html -ADB Manager - http://developer.apple.com/legacy/mac/library/documentation/mac/pdf/Devices/ADB_Manager.pdf - Service request(5-17) -Apple IIgs Hardware Reference Second Edition [Chapter6 p121] - ftp://ftp.apple.asimov.net/pub/apple_II/documentation/Apple%20IIgs%20Hardware%20Reference.pdf -ADB Keycode - http://72.0.193.250/Documentation/macppc/adbkeycodes/ - http://m0115.web.fc2.com/m0115.jpg - [Inside Macintosh volume V, pages 191-192] - http://www.opensource.apple.com/source/IOHIDFamily/IOHIDFamily-421.18.3/IOHIDFamily/Cosmo_USB2ADB.c -ADB Signaling - http://kbdbabel.sourceforge.net/doc/kbd_signaling_pcxt_ps2_adb.pdf -ADB Overview & History - http://en.wikipedia.org/wiki/Apple_Desktop_Bus -Microchip Application Note: ADB device(with code for PIC16C) - http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en011062 -AVR ATtiny2131 ADB to PS/2 converter(Japanese) - http://hp.vector.co.jp/authors/VA000177/html/KeyBoardA5DEA5CBA5A2II.html - - -Pinouts -------- - ADB female socket from the front: - __________ - | | <--- top - | 4o o3 | - |2o o1| - | == | - |________| <--- bottom - | | <--- 4pins - - - ADB female socket from bottom: - - ========== <--- front - | | - | | - |2o o1| - |4o o3| - ---------- <--- back - - 1: Data - 2: Power SW(low when press Power key) - 3: Vcc(5V) - 4: GND - - -Commands --------- - ADB command is 1byte and consists of 4bit-address, 2bit-command - type and 2bit-register. The commands are always sent by Host. - - Command format: - 7 6 5 4 3 2 1 0 - | | | |------------ address - | |-------- command type - | |---- register - - bits commands - ------------------------------------------------------ - - - - - 0 0 0 0 Send Request(reset all devices) - A A A A 0 0 0 1 Flush(reset a device) - - - - - 0 0 1 0 Reserved - - - - - 0 0 1 1 Reserved - - - - - 0 1 - - Reserved - A A A A 1 0 R R Listen(write to a device) - A A A A 1 1 R R Talk(read from a device) - - The command to read keycodes from keyboard is 0x2C which - consist of keyboard address 2 and Talk against register 0. - - Address: - 2: keyboard - 3: mice - - Registers: - 0: application(keyboard uses this to store its data.) - 1: application - 2: application(keyboard uses this for LEDs and state of modifiers) - 3: status and command - - -Communication -------------- - This is a minimum information for keyboard communication. - See "Resources" for detail. - - Signaling: - - ~~~~____________~~||||||||||||__~~~~~_~~|||||||||||||||__~~~~ - - |800us | |7 Command 0| | | |15-64 Data 0|Stopbit(0) - +Attention | | | +Startbit(1) - +Startbit(1) | +Tlt(140-260us) - +stopbit(0) - - Bit cells: - - bit0: ______~~~ - 65 :35us - - bit1: ___~~~~~~ - 35 :65us - - bit0 low time: 60-70% of bit cell(42-91us) - bit1 low time: 30-40% of bit cell(21-52us) - bit cell time: 70-130us - [from Apple IIgs Hardware Reference Second Edition] - - Criterion for bit0/1: - After 55us if line is low/high then bit is 0/1. - - Attention & start bit: - Host asserts low in 560-1040us then places start bit(1). - - Tlt(Stop to Start): - Bus stays high in 140-260us then device places start bit(1). - - Global reset: - Host asserts low in 2.8-5.2ms. All devices are forced to reset. - - Service request from device(Srq): - Device can request to send at commad(Global only?) stop bit. - Requesting device keeps low for 140-260us at stop bit of command. - - -Keyboard Data(Register0) - This 16bit data can contains two keycodes and two released flags. - First keycode is palced in upper byte. When one keyocode is sent, - lower byte is 0xFF. - Release flag is 1 when key is released. - - 1514 . . . . . 8 7 6 . . . . . 0 - | | | | | | | | | +-+-+-+-+-+-+- Keycode2 - | | | | | | | | +--------------- Released2(1 when the key is released) - | +-+-+-+-+-+-+----------------- Keycode1 - +------------------------------- Released1(1 when the key is released) - - Keycodes: - Scancode consists of 7bit keycode and 1bit release flag. - Device can send two keycodes at once. If just one keycode is sent - keycode1 contains it and keyocode2 is 0xFF. - - Power switch: - You can read the state from PSW line(active low) however - the switch has a special scancode 0x7F7F, so you can - also read from Data line. It uses 0xFFFF for release scancode. - -Keyboard LEDs & state of keys(Register2) - This register hold current state of three LEDs and nine keys. - The state of LEDs can be changed by sending Listen command. - - 1514 . . . . . . 7 6 5 . 3 2 1 0 - | | | | | | | | | | | | | | | +- LED1(NumLock) - | | | | | | | | | | | | | | +--- LED2(CapsLock) - | | | | | | | | | | | | | +----- LED3(ScrollLock) - | | | | | | | | | | +-+-+------- Reserved - | | | | | | | | | +------------- ScrollLock - | | | | | | | | +--------------- NumLock - | | | | | | | +----------------- Apple/Command - | | | | | | +------------------- Option - | | | | | +--------------------- Shift - | | | | +----------------------- Control - | | | +------------------------- Reset/Power - | | +--------------------------- CapsLock - | +----------------------------- Delete - +------------------------------- Reserved - -END_OF_ADB -*/ -- cgit v1.2.3