Merge branch 'adb_fix'
tmk
commit
3fa50565af
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@ -32,12 +32,25 @@ MCU = atmega32u4 # Teensy 2.0
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F_CPU = 16000000
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# Boot Section Size in *bytes*
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# Teensy halfKay 512
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# Teensy++ halfKay 1024
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# Atmel DFU loader 4096
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# LUFA bootloader 4096
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# USBaspLoader 2048
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OPT_DEFS += -DBOOTLOADER_SIZE=4096
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# Build Options
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# comment out to disable the options.
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#
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#MOUSEKEY_ENABLE = yes # Mouse keys
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EXTRAKEY_ENABLE = yes # Audio control and System control
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#NKRO_ENABLE = yes # USB Nkey Rollover
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#BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
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#MOUSEKEY_ENABLE = yes # Mouse keys(+5000)
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#EXTRAKEY_ENABLE = yes # Audio control and System control(+600)
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#CONSOLE_ENABLE = yes # Console for debug
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#COMMAND_ENABLE = yes # Commands for debug and configuration
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#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
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#NKRO_ENABLE = yes # USB Nkey Rollover(+500)
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# Search Path
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@ -0,0 +1,131 @@
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#----------------------------------------------------------------------------
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# On command line:
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#
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# make all = Make software.
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#
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# make clean = Clean out built project files.
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#
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# make coff = Convert ELF to AVR COFF.
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#
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# make extcoff = Convert ELF to AVR Extended COFF.
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#
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# make program = Download the hex file to the device.
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# Please customize your programmer settings(PROGRAM_CMD)
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#
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# make teensy = Download the hex file to the device, using teensy_loader_cli.
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# (must have teensy_loader_cli installed).
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#
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# make dfu = Download the hex file to the device, using dfu-programmer (must
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# have dfu-programmer installed).
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#
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# make flip = Download the hex file to the device, using Atmel FLIP (must
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# have Atmel FLIP installed).
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#
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# make dfu-ee = Download the eeprom file to the device, using dfu-programmer
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# (must have dfu-programmer installed).
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#
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# make flip-ee = Download the eeprom file to the device, using Atmel FLIP
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# (must have Atmel FLIP installed).
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#
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# make debug = Start either simulavr or avarice as specified for debugging,
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# with avr-gdb or avr-insight as the front end for debugging.
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#
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# make filename.s = Just compile filename.c into the assembler code only.
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#
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# make filename.i = Create a preprocessed source file for use in submitting
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# bug reports to the GCC project.
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#
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# To rebuild project do "make clean" then "make all".
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#----------------------------------------------------------------------------
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# Target file name (without extension).
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TARGET = adb_usb_lufa
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# Directory common source filess exist
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TOP_DIR = ../..
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# Directory keyboard dependent files exist
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TARGET_DIR = .
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# project specific files
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SRC = keymap.c \
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matrix.c \
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led.c \
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adb.c
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CONFIG_H = config.h
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# MCU name
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#MCU = at90usb1287
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MCU = atmega32u4
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# Processor frequency.
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# This will define a symbol, F_CPU, in all source code files equal to the
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# processor frequency in Hz. You can then use this symbol in your source code to
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# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
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# automatically to create a 32-bit value in your source code.
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#
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# This will be an integer division of F_USB below, as it is sourced by
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# F_USB after it has run through any CPU prescalers. Note that this value
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# does not *change* the processor frequency - it should merely be updated to
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# reflect the processor speed set externally so that the code can use accurate
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# software delays.
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F_CPU = 16000000
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#
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# LUFA specific
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#
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# Target architecture (see library "Board Types" documentation).
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ARCH = AVR8
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# Input clock frequency.
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# This will define a symbol, F_USB, in all source code files equal to the
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# input clock frequency (before any prescaling is performed) in Hz. This value may
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# differ from F_CPU if prescaling is used on the latter, and is required as the
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# raw input clock is fed directly to the PLL sections of the AVR for high speed
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# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
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# at the end, this will be done automatically to create a 32-bit value in your
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# source code.
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#
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# If no clock division is performed on the input clock inside the AVR (via the
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# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
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F_USB = $(F_CPU)
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# Interrupt driven control endpoint task(+60)
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#OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
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# Boot Section Size in *bytes*
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# Teensy halfKay 512
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# Teensy++ halfKay 1024
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# Atmel DFU loader 4096
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# LUFA bootloader 4096
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# USBaspLoader 2048
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OPT_DEFS += -DBOOTLOADER_SIZE=4096
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# Build Options
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# comment out to disable the options.
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#
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BOOTMAGIC_ENABLE = yes # Virtual DIP switch configuration(+1000)
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MOUSEKEY_ENABLE = yes # Mouse keys(+4700)
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EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
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CONSOLE_ENABLE = yes # Console for debug(+400)
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COMMAND_ENABLE = yes # Commands for debug and configuration
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#SLEEP_LED_ENABLE = yes # Breathing sleep LED during USB suspend
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#NKRO_ENABLE = yes # USB Nkey Rollover - not yet supported in LUFA
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# Optimize size but this may cause error "relocation truncated to fit"
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#EXTRALDFLAGS = -Wl,--relax
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# Search Path
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VPATH += $(TARGET_DIR)
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VPATH += $(TOP_DIR)
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include $(TOP_DIR)/protocol/lufa.mk
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include $(TOP_DIR)/protocol.mk
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include $(TOP_DIR)/common.mk
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include $(TOP_DIR)/rules.mk
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@ -21,7 +21,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/pgmspace.h>
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#include "usb_keyboard.h"
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#include "keycode.h"
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#include "print.h"
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#include "debug.h"
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@ -71,7 +71,6 @@ void matrix_init(void)
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// initialize matrix state: all keys off
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for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
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print_enable = true;
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debug_enable = true;
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debug_matrix = true;
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debug_keyboard = true;
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@ -57,12 +57,13 @@ static inline void place_bit1(void);
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static inline void send_byte(uint8_t data);
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static inline bool read_bit(void);
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static inline uint8_t read_byte(void);
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static inline uint8_t wait_data_lo(uint8_t us);
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static inline uint8_t wait_data_lo(uint16_t us);
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static inline uint8_t wait_data_hi(uint8_t us);
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void adb_host_init(void)
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{
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DDRF |= (1<<1);
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data_hi();
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#ifdef ADB_PSW_BIT
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psw_hi();
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@ -88,19 +89,24 @@ uint16_t adb_host_kbd_recv(void)
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attention();
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send_byte(0x2C); // Addr:Keyboard(0010), Cmd:Talk(11), Register0(00)
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place_bit0(); // Stopbit(0)
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if (!wait_data_lo(0xFF)) // Tlt/Stop to Start(140-260us)
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if (!wait_data_lo(500)) { // Tlt/Stop to Start(140-260us)
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return 0; // No data to send
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if (!read_bit()) // Startbit(1)
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}
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if (!read_bit()) { // Startbit(1)
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// Service Request
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return -2;
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}
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// ad hoc fix: without block inerrupt read wrong bit occasionally and get keys stuck
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cli();
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data = read_byte();
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data = (data<<8) | read_byte();
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uint8_t stop = read_bit(); // Stopbit(0)
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sei();
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if (read_bit()) // Stopbit(0)
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if (stop) {
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return -3;
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}
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return data;
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}
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@ -199,24 +205,48 @@ static inline bool read_bit(void)
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{
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// ADB Bit Cells
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//
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// bit0: ______~~~
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// 65 :35us
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//
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// bit1: ___~~~~~~
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// 35 :65us
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//
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// bit0 low time: 60-70% of bit cell(42-91us)
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// bit1 low time: 30-40% of bit cell(21-52us)
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// bit cell time: 70-130us
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// [from Apple IIgs Hardware Reference Second Edition]
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// low part of bit0: 60-70% of bit cell
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// low part of bit1: 30-40% of bit cell
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//
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// After 55us if data line is low/high then bit is 0/1.
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// Too simple to rely on?
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// bit cell time 70us 130us
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// --------------------------------------------
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// low part of bit0 42-49 78-91
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// high part of bit0 21-28 39-52
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// low part of bit1 21-28 39-52
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// high part of bit1 42-49 78-91
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//
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//
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// bit0:
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// 70us bit cell:
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// ____________~~~~~~
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// 42-49 21-28
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//
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// 130us bit cell:
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// ____________~~~~~~
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// 78-91 39-52
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//
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// bit1:
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// 70us bit cell:
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// ______~~~~~~~~~~~~
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// 21-28 42-49
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//
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// 130us bit cell:
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// ______~~~~~~~~~~~~
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// 39-52 78-91
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//
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// read:
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// ________|~~~~~~~~~
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// 55us
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// Read data line after 55us. If data line is low/high then bit is 0/1.
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// This method might not work at <90us bit cell time.
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//
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// [from Apple IIgs Hardware Reference Second Edition]
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bool bit;
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wait_data_lo(75); // wait the beginning of bit cell
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wait_data_lo(75); // wait the start of bit cell at least 130ms(55+0+75)
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_delay_us(55);
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bit = data_in();
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wait_data_hi(36); // wait high part of bit cell
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wait_data_hi(36); // wait high part of bit cell at least 91ms(55+36)
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return bit;
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}
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@ -231,7 +261,7 @@ static inline uint8_t read_byte(void)
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return data;
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}
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static inline uint8_t wait_data_lo(uint8_t us)
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static inline uint8_t wait_data_lo(uint16_t us)
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{
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while (data_in() && us) {
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_delay_us(1);
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@ -258,7 +288,10 @@ Resources
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---------
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ADB - The Untold Story: Space Aliens Ate My Mouse
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http://developer.apple.com/legacy/mac/library/#technotes/hw/hw_01.html
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Apple IIgs Hardware Reference Second Edition [p80(Chapter6 p121)]
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ADB Manager
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http://developer.apple.com/legacy/mac/library/documentation/mac/pdf/Devices/ADB_Manager.pdf
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Service request(5-17)
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Apple IIgs Hardware Reference Second Edition [Chapter6 p121]
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ftp://ftp.apple.asimov.net/pub/apple_II/documentation/Apple%20IIgs%20Hardware%20Reference.pdf
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ADB Keycode
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http://72.0.193.250/Documentation/macppc/adbkeycodes/
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@ -376,9 +409,9 @@ Communication
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Global reset:
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Host asserts low in 2.8-5.2ms. All devices are forced to reset.
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Send request from device(Srq):
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Service request from device(Srq):
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Device can request to send at commad(Global only?) stop bit.
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keep low for 300us to request.
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Requesting device keeps low for 140-260us at stop bit of command.
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Keyboard Data(Register0)
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@ -31,6 +31,7 @@
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#include "usb_mouse.h"
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#include "usb_debug.h"
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#include "usb_extra.h"
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#include "led.h"
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#include "print.h"
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#include "util.h"
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#include "sleep_led.h"
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