ahoneybun/qmk_firmware
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

integrate V-USB support into ps2_usb

Browse source
This commit is contained in:
tmk 2011-02-21 15:43:17 +09:00
parent 47f5d8b545
commit fb8d23c60c
27 changed files with 176 additions and 1183 deletions
Download patch file Download diff file Expand all files Collapse all files

56
ps2_usb/Makefile
View file

@ -1,46 +1,5 @@
# Hey Emacs, this is a -*- makefile -*-
#----------------------------------------------------------------------------
# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
#
# Released to the Public Domain
#
# Additional material for this makefile was written by:
# Peter Fleury
# Tim Henigan
# Colin O'Flynn
# Reiner Patommel
# Markus Pfaff
# Sander Pool
# Frederik Rouleau
# Carlos Lamas
#
#----------------------------------------------------------------------------
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF.
#
# make extcoff = Convert ELF to AVR Extended COFF.
#
# make program = Download the hex file to the device, using avrdude.
# Please customize the avrdude settings below first!
#
# make debug = Start either simulavr or avarice as specified for debugging,
# with avr-gdb or avr-insight as the front end for debugging.
#
# make filename.s = Just compile filename.c into the assembler code only.
#
# make filename.i = Create a preprocessed source file for use in submitting
# bug reports to the GCC project.
#
# To rebuild project do "make clean" then "make all".
#----------------------------------------------------------------------------
# Target file name (without extension).
TARGET = tmk_ps2_usb
TARGET = ps2_usb
# Directory common source filess exist
COMMON_DIR = ..
@ -49,10 +8,14 @@ COMMON_DIR = ..
TARGET_DIR = .
# keyboard dependent files
TARGET_SRC = keymap.c \
TARGET_SRC = main_pjrc.c \
keymap.c \
matrix.c \
led.c \
ps2.c
CONFIG_H = config_pjrc.h
# MCU name, you MUST set this to match the board you are using
# type "make clean" after changing this, so all files will be rebuilt
@ -78,4 +41,11 @@ USB_EXTRA_ENABLE = yes # Enhanced feature for Windows(Audio control and System c
USB_NKRO_ENABLE = yes # USB Nkey Rollover
#---------------- Programming Options --------------------------
PROGRAM_CMD = teensy_loader_cli.exe -mmcu=$(MCU) -w -v $(TARGET).hex
include $(COMMON_DIR)/Makefile.pjrc
include $(COMMON_DIR)/Makefile.common

84
ps2_usb/Makefile.vusb Normal file
View file

@ -0,0 +1,84 @@
# Target file name (without extension).
TARGET = ps2_vusb
# Directory common source filess exist
COMMON_DIR = ..
# Directory keyboard dependent files exist
TARGET_DIR = .
# keyboard dependent files
TARGET_SRC = main_vusb.c \
keymap.c \
matrix.c \
led.c \
ps2_usart.c \
sendchar_dummy.c
# sendchar_usart.c
CONFIG_H = config_vusb.h
OPT_DEFS = -DDEBUG_LEVEL=0
# MCU name, you MUST set this to match the board you are using
# type "make clean" after changing this, so all files will be rebuilt
#MCU = at90usb162 # Teensy 1.0
#MCU = atmega32u4 # Teensy 2.0
#MCU = at90usb646 # Teensy++ 1.0
#MCU = at90usb1286 # Teensy++ 2.0
MCU = atmega168
# Processor frequency.
# Normally the first thing your program should do is set the clock prescaler,
# so your program will run at the correct speed. You should also set this
# variable to same clock speed. The _delay_ms() macro uses this, and many
# examples use this variable to calculate timings. Do not add a "UL" here.
F_CPU = 20000000
# Build Options
# comment out to disable the options.
#
MOUSEKEY_ENABLE = yes # Mouse keys
#USB_EXTRA_ENABLE = yes # Enhanced feature for Windows(Audio control and System control)
#USB_NKRO_ENABLE = yes # USB Nkey Rollover
#---------------- Programming Options --------------------------
AVRDUDE = avrdude
# Type: avrdude -c ? to get a full listing.
AVRDUDE_PROGRAMMER = usbasp
AVRDUDE_PORT =
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V
# Increase verbosity level. Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v
#AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS = -p $(MCU) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
PROGRAM_CMD = $(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
include $(COMMON_DIR)/Makefile.vusb
include $(COMMON_DIR)/Makefile.common

15
ps2_usb/README
View file

@ -47,10 +47,10 @@ Keymap customization
You can customize keymaps easily by editing source code.
Build
-----
Build for Teensy
----------------
0. Connect PS/2 keyboard to Teensy by 4 lines(Vcc, GND, Data, Clock).
1. Define following macros for PS/2 connection in config.h:
1. Define following macros for PS/2 connection in config_pjrc.h:
PS2_DATA_PORT
PS2_DATA_PIN
PS2_DATA_DDR
@ -65,6 +65,15 @@ Build
http://www.pjrc.com/teensy/loader.html
Build for V-USB
---------------
0. Build V-USB controller board and connect PS/2 keyboard.
1. Define macros in config_vusb.h if needed.
2. Edit Makefile.vusb for build options and MCU setting.
3. make -f Makefile.vusb
4. program your V-USB controller.
Keymap
------
You can change a keymap by editing code of keymap.c like following.

16
ps2_usb/config.h → ps2_usb/config_pjrc.h
View file

@ -10,22 +10,26 @@
#define PRODUCT PS/2 keyboard converter
#define DESCRIPTION convert PS/2 keyboard to USB
/* matrix size */
#define MATRIX_ROWS 32 // keycode bit: 3-0
#define MATRIX_COLS 8 // keycode bit: 6-4
/* define if matrix has ghost */
//#define MATRIX_HAS_GHOST
/* USB NKey Rollover */
#ifdef USB_NKRO_ENABLE
#endif
/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (BIT_LSHIFT | BIT_RSHIFT) || \
keyboard_report->mods == (BIT_LCTRL | BIT_RSHIFT) \
)
/* mouse keys */
#ifdef MOUSEKEY_ENABLE
# define MOUSEKEY_DELAY_TIME 255
#endif
/* PS/2 mouse */
/* PS/2 lines */
#define PS2_CLOCK_PORT PORTF
#define PS2_CLOCK_PIN PINF
#define PS2_CLOCK_DDR DDRF

116
ps2_usb/config_vusb.h Normal file
View file

@ -0,0 +1,116 @@
#ifndef CONFIG_H
#define CONFIG_H
#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x2233
// TODO: share these strings with usbconfig.h
// Edit usbconfig.h to change these.
#define MANUFACTURER t.m.k.
#define PRODUCT PS/2 keyboard converter
#define DESCRIPTION convert PS/2 keyboard to USB
/* matrix size */
#define MATRIX_ROWS 32 // keycode bit: 3-0
#define MATRIX_COLS 8 // keycode bit: 6-4
/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (BIT_LSHIFT | BIT_RSHIFT) || \
keyboard_report->mods == (BIT_LCTRL | BIT_RSHIFT) \
)
/* mouse keys */
#ifdef MOUSEKEY_ENABLE
# define MOUSEKEY_DELAY_TIME 255
#endif
/* PS/2 lines */
#define PS2_CLOCK_PORT PORTD
#define PS2_CLOCK_PIN PIND
#define PS2_CLOCK_DDR DDRD
#define PS2_CLOCK_BIT 4
#define PS2_DATA_PORT PORTD
#define PS2_DATA_PIN PIND
#define PS2_DATA_DDR DDRD
#define PS2_DATA_BIT 0
// Synchronous USART is used to receive data from keyboard.
// Use RXD pin for PS/2 DATA line and XCK for PS/2 CLOCK.
// NOTE: This is recomended strongly if you use V-USB library.
#define PS2_USE_USART
// External or Pin Change Interrupt is used to receive data from keyboard.
// Use INT1 or PCINTxx for PS/2 CLOCK line. see below.
//#define PS2_USE_INT
#ifdef PS2_USE_USART
// synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling edge
// set DDR of CLOCK as input to be slave
#define PS2_USART_INIT() do { \
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT); \
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT); \
UCSR0C = ((1 << UMSEL00) | \
(3 << UPM00) | \
(0 << USBS0) | \
(3 << UCSZ00) | \
(0 << UCPOL0)); \
UCSR0A = 0; \
UBRR0H = 0; \
UBRR0L = 0; \
} while (0)
#define PS2_USART_RX_INT_ON() do { \
UCSR0B = ((1 << RXCIE0) | \
(1 << RXEN0)); \
} while (0)
#define PS2_USART_RX_POLL_ON() do { \
UCSR0B = (1 << RXEN0); \
} while (0)
#define PS2_USART_OFF() do { \
UCSR0C = 0; \
UCSR0B &= ~((1 << RXEN0) | \
(1 << TXEN0)); \
} while (0)
#define PS2_USART_RX_READY (UCSR0A & (1<<RXC0))
#define PS2_USART_RX_DATA UDR0
#define PS2_USART_ERROR (UCSR0A & ((1<<FE0) | (1<<DOR0) | (1<<UPE0)))
#define PS2_USART_RX_VECT USART_RX_vect
#endif
#ifdef PS2_USE_INT
/* INT1
#define PS2_INT_INIT() do { \
EICRA |= ((1<<ISC11) | \
(0<<ISC10)); \
} while (0)
#define PS2_INT_ON() do { \
EIMSK |= (1<<INT1); \
} while (0)
#define PS2_INT_OFF() do { \
EIMSK &= ~(1<<INT1); \
} while (0)
#define PS2_INT_VECT INT1_vect
*/
/* PCINT20 */
#define PS2_INT_INIT() do { \
PCICR |= (1<<PCIE2); \
} while (0)
#define PS2_INT_ON() do { \
PCMSK2 |= (1<<PCINT20); \
} while (0)
#define PS2_INT_OFF() do { \
PCMSK2 &= ~(1<<PCINT20); \
PCICR &= ~(1<<PCIE2); \
} while (0)
#define PS2_INT_VECT PCINT2_vect
#endif
#endif

9
ps2_usb/keymap.c
View file

@ -4,12 +4,11 @@
#include <stdint.h>
#include <stdbool.h>
#include <avr/pgmspace.h>
#include "usb_keyboard.h"
#include "usb_keycodes.h"
#include "print.h"
#include "debug.h"
#include "util.h"
#include "keymap_skel.h"
#include "keymap.h"
#define KEYCODE(layer, row, col) (pgm_read_byte(&keymaps[(layer)][(row)][(col)]))
@ -181,9 +180,3 @@ uint8_t keymap_fn_keycode(uint8_t fn_bits)
{
return pgm_read_byte(&fn_keycode[(biton(fn_bits))]);
}
// define a condition to enter special function mode
bool keymap_is_special_mode(uint8_t fn_bits)
{
return usb_keyboard_mods == (BIT_LSHIFT | BIT_RSHIFT) || usb_keyboard_mods == (BIT_LCTRL | BIT_RSHIFT);
}

16
ps2_usb/led.c Normal file
View file

@ -0,0 +1,16 @@
#include "stdint.h"
#include "ps2.h"
#include "led.h"
void led_set(uint8_t usb_led)
{
uint8_t ps2_led = 0;
if (usb_led & (1<<USB_LED_SCROLL_LOCK))
ps2_led |= (1<<PS2_LED_SCROLL_LOCK);
if (usb_led & (1<<USB_LED_NUM_LOCK))
ps2_led |= (1<<PS2_LED_NUM_LOCK);
if (usb_led & (1<<USB_LED_CAPS_LOCK))
ps2_led |= (1<<PS2_LED_CAPS_LOCK);
ps2_host_set_led(ps2_led);
}

62
ps2_usb/main_vusb.c Normal file
View file

@ -0,0 +1,62 @@
/* PS/2 to USB keyboard converter
* 2011/02/20
* Copyright (c) 2011 tmk
*/
/* Name: main.c
* Project: hid-mouse, a very simple HID example
* Author: Christian Starkjohann
* Creation Date: 2008-04-07
* Tabsize: 4
* Copyright: (c) 2008 by OBJECTIVE DEVELOPMENT Software GmbH
* License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
* This Revision: $Id: main.c 790 2010-05-30 21:00:26Z cs $
*/
#include <stdint.h>
#include <avr/wdt.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "usbdrv.h"
#include "oddebug.h"
#include "host_vusb.h"
#include "keyboard.h"
#if 0
#define DEBUGP_INIT() do { DDRC = 0xFF; } while (0)
#define DEBUGP(x) do { PORTC = x; } while (0)
#else
#define DEBUGP_INIT()
#define DEBUGP(x)
#endif
int main(void)
{
DEBUGP_INIT();
wdt_enable(WDTO_1S);
odDebugInit();
usbInit();
/* enforce re-enumeration, do this while interrupts are disabled! */
usbDeviceDisconnect();
uint8_t i = 0;
/* fake USB disconnect for > 250 ms */
while(--i){
wdt_reset();
_delay_ms(1);
}
usbDeviceConnect();
keyboard_init();
sei();
while (1) {
DEBUGP(0x1);
wdt_reset();
usbPoll();
DEBUGP(0x2);
keyboard_proc();
DEBUGP(0x3);
host_vusb_keyboard_send();
}
}

50
ps2_usb/matrix.c
View file

@ -9,8 +9,7 @@
#include "util.h"
#include "debug.h"
#include "ps2.h"
#include "usb_keyboard.h"
#include "matrix_skel.h"
#include "matrix.h"
#if (MATRIX_COLS > 16)
@ -60,8 +59,6 @@ static bool matrix_has_ghost_in_row(uint8_t row);
#endif
static void matrix_make(uint8_t code);
static void matrix_break(uint8_t code);
static void ps2_reset(void);
static void ps2_set_leds(uint8_t leds);
inline
@ -78,20 +75,8 @@ uint8_t matrix_cols(void)
void matrix_init(void)
{
print_enable = true;
ps2_host_init();
ps2_reset();
// flush LEDs
ps2_set_leds(1<<PS2_LED_NUM_LOCK);
_delay_ms(100);
ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK);
_delay_ms(100);
ps2_set_leds(1<<PS2_LED_NUM_LOCK|1<<PS2_LED_CAPS_LOCK|1<<PS2_LED_SCROLL_LOCK);
_delay_ms(300);
ps2_set_leds(0x00);
// initialize matrix state: all keys off
for (uint8_t i=0; i < MATRIX_ROWS; i++) matrix[i] = 0x00;
@ -191,7 +176,6 @@ uint8_t matrix_scan(void)
uint8_t code;
while ((code = ps2_host_recv())) {
debug_hex(code); debug(" ");
switch (state) {
case INIT:
switch (code) {
@ -349,22 +333,6 @@ debug_hex(code); debug(" ");
state = INIT;
}
}
// handle LED indicators
static uint8_t prev_leds = 0;
if (prev_leds != usb_keyboard_leds) {
uint8_t leds = 0;
if (usb_keyboard_leds&(1<<USB_LED_SCROLL_LOCK))
leds |= (1<<PS2_LED_SCROLL_LOCK);
if (usb_keyboard_leds&(1<<USB_LED_NUM_LOCK))
leds |= (1<<PS2_LED_NUM_LOCK);
if (usb_keyboard_leds&(1<<USB_LED_CAPS_LOCK))
leds |= (1<<PS2_LED_CAPS_LOCK);
ps2_set_leds(leds);
prev_leds = usb_keyboard_leds;
}
return 1;
}
@ -472,19 +440,3 @@ static void matrix_break(uint8_t code)
is_modified = true;
}
}
static void ps2_reset(void)
{
ps2_host_send(0xFF);
ps2_host_recv(); // 0xFA
ps2_host_recv(); // 0xAA
_delay_ms(1000);
}
static void ps2_set_leds(uint8_t leds)
{
ps2_host_send(0xED);
ps2_host_recv(); // 0xFA
ps2_host_send(leds);
ps2_host_recv(); // 0xFA
}

325
ps2_usb/ps2_usart.c Normal file
View file

@ -0,0 +1,325 @@
/*
Copyright (c) 2010,2011 Jun WAKO <wakojun@gmail.com>
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.
*/
/*
Primitive PS/2 Library for AVR
==============================
Host side is only supported now.
Synchronous USART is used to receive data by hardware process
rather than interrupt. During V-USB interrupt runs, CLOCK interrupt
cannot interpose. In the result it is prone to lost CLOCK edge.
I/O control
-----------
High state is asserted by internal pull-up.
If you have a signaling problem, you may need to have
external pull-up resisters on CLOCK and DATA line.
PS/2 References
---------------
http://www.computer-engineering.org/ps2protocol/
http://www.mcamafia.de/pdf/ibm_hitrc07.pdf
*/
#include <stdbool.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "ps2.h"
#include "debug.h"
#if 0
#define DEBUGP_INIT() do { DDRC = 0xFF; } while (0)
#define DEBUGP(x) do { PORTC = x; } while (0)
#else
#define DEBUGP_INIT()
#define DEBUGP(x)
#endif
#define WAIT(stat, us, err) do { \
if (!wait_##stat(us)) { \
ps2_error = err; \
goto ERROR; \
} \
} while (0)
uint8_t ps2_error = PS2_ERR_NONE;
static inline void clock_lo(void);
static inline void clock_hi(void);
static inline bool clock_in(void);
static inline void data_lo(void);
static inline void data_hi(void);
static inline bool data_in(void);
static inline uint16_t wait_clock_lo(uint16_t us);
static inline uint16_t wait_clock_hi(uint16_t us);
static inline uint16_t wait_data_lo(uint16_t us);
static inline uint16_t wait_data_hi(uint16_t us);
static inline void idle(void);
static inline void inhibit(void);
#if defined PS2_USE_INT || defined PS2_USE_USART
static inline uint8_t pbuf_dequeue(void);
static inline void pbuf_enqueue(uint8_t data);
#endif
void ps2_host_init(void)
{
DEBUGP_INIT();
DEBUGP(0x1);
idle();
PS2_USART_INIT();
PS2_USART_RX_INT_ON();
}
uint8_t ps2_host_send(uint8_t data)
{
uint8_t res = 0;
bool parity = true;
ps2_error = PS2_ERR_NONE;
DEBUGP(0x6);
PS2_USART_OFF();
/* terminate a transmission if we have */
inhibit();
_delay_us(100);
/* start bit [1] */
data_lo();
clock_hi();
WAIT(clock_lo, 15000, 1);
/* data [2-9] */
for (uint8_t i = 0; i < 8; i++) {
_delay_us(15);
if (data&(1<<i)) {
parity = !parity;
data_hi();
} else {
data_lo();
}
WAIT(clock_hi, 50, 2);
WAIT(clock_lo, 50, 3);
}
/* parity [10] */
_delay_us(15);
if (parity) { data_hi(); } else { data_lo(); }
WAIT(clock_hi, 50, 4);
WAIT(clock_lo, 50, 5);
/* stop bit [11] */
_delay_us(15);
data_hi();
/* ack [12] */
WAIT(data_lo, 50, 6);
WAIT(clock_lo, 50, 7);
/* wait for idle state */
WAIT(clock_hi, 50, 8);
WAIT(data_hi, 50, 9);
res = ps2_host_recv_response();
ERROR:
idle();
PS2_USART_INIT();
PS2_USART_RX_INT_ON();
return res;
}
// Do polling data from keyboard to get response to last command.
uint8_t ps2_host_recv_response(void)
{
uint8_t data = 0;
PS2_USART_INIT();
PS2_USART_RX_POLL_ON();
while (!PS2_USART_RX_READY)
;
data = PS2_USART_RX_DATA;
PS2_USART_OFF();
DEBUGP(0x9);
return data;
}
uint8_t ps2_host_recv(void)
{
return pbuf_dequeue();
}
ISR(PS2_USART_RX_VECT)
{
DEBUGP(0x7);
uint8_t error = PS2_USART_ERROR;
uint8_t data = PS2_USART_RX_DATA;
if (error) {
DEBUGP(error>>2);
} else {
pbuf_enqueue(data);
}
DEBUGP(0x8);
}
/* send LED state to keyboard */
void ps2_host_set_led(uint8_t led)
{
// send 0xED then keyboard keeps waiting for next LED data
// and keyboard does not send any scan codes during waiting.
// If fail to send LED data keyboard looks like being freezed.
uint8_t retry = 3;
while (retry-- && ps2_host_send(PS2_SET_LED) != PS2_ACK)
;
retry = 3;
while (retry-- && ps2_host_send(led) != PS2_ACK)
;
}
/*--------------------------------------------------------------------
* static functions
*------------------------------------------------------------------*/
static inline void clock_lo()
{
PS2_CLOCK_PORT &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_DDR |= (1<<PS2_CLOCK_BIT);
}
static inline void clock_hi()
{
/* input with pull up */
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
}
static inline bool clock_in()
{
PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);
PS2_CLOCK_PORT |= (1<<PS2_CLOCK_BIT);
_delay_us(1);
return PS2_CLOCK_PIN&(1<<PS2_CLOCK_BIT);
}
static inline void data_lo()
{
PS2_DATA_PORT &= ~(1<<PS2_DATA_BIT);
PS2_DATA_DDR |= (1<<PS2_DATA_BIT);
}
static inline void data_hi()
{
/* input with pull up */
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
}
static inline bool data_in()
{
PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);
PS2_DATA_PORT |= (1<<PS2_DATA_BIT);
_delay_us(1);
return PS2_DATA_PIN&(1<<PS2_DATA_BIT);
}
static inline uint16_t wait_clock_lo(uint16_t us)
{
while (clock_in() && us) { asm(""); _delay_us(1); us--; }
return us;
}
static inline uint16_t wait_clock_hi(uint16_t us)
{
while (!clock_in() && us) { asm(""); _delay_us(1); us--; }
return us;
}
static inline uint16_t wait_data_lo(uint16_t us)
{
while (data_in() && us) { asm(""); _delay_us(1); us--; }
return us;
}
static inline uint16_t wait_data_hi(uint16_t us)
{
while (!data_in() && us) { asm(""); _delay_us(1); us--; }
return us;
}
/* idle state that device can send */
static inline void idle(void)
{
clock_hi();
data_hi();
}
/* inhibit device to send */
static inline void inhibit(void)
{
clock_lo();
data_hi();
}
/*--------------------------------------------------------------------
* Ring buffer to store scan codes from keyboard
*------------------------------------------------------------------*/
#define PBUF_SIZE 8
static uint8_t pbuf[PBUF_SIZE];
static uint8_t pbuf_head = 0;
static uint8_t pbuf_tail = 0;
static inline void pbuf_enqueue(uint8_t data)
{
if (!data)
return;
uint8_t sreg = SREG;
cli();
uint8_t next = (pbuf_head + 1) % PBUF_SIZE;
if (next != pbuf_tail) {
pbuf[pbuf_head] = data;
pbuf_head = next;
} else {
debug("pbuf: full\n");
}
SREG = sreg;
}
static inline uint8_t pbuf_dequeue(void)
{
uint8_t val = 0;
uint8_t sreg = SREG;
cli();
if (pbuf_head != pbuf_tail) {
val = pbuf[pbuf_tail];
pbuf_tail = (pbuf_tail + 1) % PBUF_SIZE;
}
SREG = sreg;
return val;
}

8
ps2_usb/sendchar_dummy.c Normal file
View file

@ -0,0 +1,8 @@
#include <stdint.h>
#include "sendchar.h"
int8_t sendchar(uint8_t c)
{
return 1;
}

58
ps2_usb/sendchar_usart.c Normal file
View file

@ -0,0 +1,58 @@
#include <stdint.h>
#include "oddebug.h"
#include "sendchar.h"
/* from oddebug.h */
#if defined UBRR
# define ODDBG_UBRR UBRR
#elif defined UBRRL
# define ODDBG_UBRR UBRRL
#elif defined UBRR0
# define ODDBG_UBRR UBRR0
#elif defined UBRR0L
# define ODDBG_UBRR UBRR0L
#endif
#if defined UCR
# define ODDBG_UCR UCR
#elif defined UCSRB
# define ODDBG_UCR UCSRB
#elif defined UCSR0B
# define ODDBG_UCR UCSR0B
#endif
#if defined TXEN
# define ODDBG_TXEN TXEN
#else
# define ODDBG_TXEN TXEN0
#endif
#if defined USR
# define ODDBG_USR USR
#elif defined UCSRA
# define ODDBG_USR UCSRA
#elif defined UCSR0A
# define ODDBG_USR UCSR0A
#endif
#if defined UDRE
# define ODDBG_UDRE UDRE
#else
# define ODDBG_UDRE UDRE0
#endif
#if defined UDR
# define ODDBG_UDR UDR
#elif defined UDR0
# define ODDBG_UDR UDR0
#endif
/* from oddebug.c */
int8_t sendchar(uint8_t c)
{
while(!(ODDBG_USR & (1 << ODDBG_UDRE))); /* wait for data register empty */
ODDBG_UDR = c;
return 1;
}

378
ps2_usb/usbconfig.h Normal file
View file

@ -0,0 +1,378 @@
/* Name: usbconfig.h
* Project: V-USB, virtual USB port for Atmel's(r) AVR(r) microcontrollers
* Author: Christian Starkjohann
* Creation Date: 2005-04-01
* Tabsize: 4
* Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH
* License: GNU GPL v2 (see License.txt), GNU GPL v3 or proprietary (CommercialLicense.txt)
* This Revision: $Id: usbconfig-prototype.h 785 2010-05-30 17:57:07Z cs $
*/
#ifndef __usbconfig_h_included__
#define __usbconfig_h_included__
#include "config_vusb.h"
/*
General Description:
This file is an example configuration (with inline documentation) for the USB
driver. It configures V-USB for USB D+ connected to Port D bit 2 (which is
also hardware interrupt 0 on many devices) and USB D- to Port D bit 4. You may
wire the lines to any other port, as long as D+ is also wired to INT0 (or any
other hardware interrupt, as long as it is the highest level interrupt, see
section at the end of this file).
*/
/* ---------------------------- Hardware Config ---------------------------- */
#define USB_CFG_IOPORTNAME D
/* This is the port where the USB bus is connected. When you configure it to
* "B", the registers PORTB, PINB and DDRB will be used.
*/
#define USB_CFG_DMINUS_BIT 3
/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected.
* This may be any bit in the port.
*/
#define USB_CFG_DPLUS_BIT 2
/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected.
* This may be any bit in the port. Please note that D+ must also be connected
* to interrupt pin INT0! [You can also use other interrupts, see section
* "Optional MCU Description" below, or you can connect D- to the interrupt, as
* it is required if you use the USB_COUNT_SOF feature. If you use D- for the
* interrupt, the USB interrupt will also be triggered at Start-Of-Frame
* markers every millisecond.]
*/
#define USB_CFG_CLOCK_KHZ (F_CPU/1000)
/* Clock rate of the AVR in kHz. Legal values are 12000, 12800, 15000, 16000,
* 16500, 18000 and 20000. The 12.8 MHz and 16.5 MHz versions of the code
* require no crystal, they tolerate +/- 1% deviation from the nominal
* frequency. All other rates require a precision of 2000 ppm and thus a
* crystal!
* Since F_CPU should be defined to your actual clock rate anyway, you should
* not need to modify this setting.
*/
#define USB_CFG_CHECK_CRC 0
/* Define this to 1 if you want that the driver checks integrity of incoming
* data packets (CRC checks). CRC checks cost quite a bit of code size and are
* currently only available for 18 MHz crystal clock. You must choose
* USB_CFG_CLOCK_KHZ = 18000 if you enable this option.
*/
/* ----------------------- Optional Hardware Config ------------------------ */
/* #define USB_CFG_PULLUP_IOPORTNAME D */
/* If you connect the 1.5k pullup resistor from D- to a port pin instead of
* V+, you can connect and disconnect the device from firmware by calling
* the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h).
* This constant defines the port on which the pullup resistor is connected.
*/
/* #define USB_CFG_PULLUP_BIT 4 */
/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined
* above) where the 1.5k pullup resistor is connected. See description
* above for details.
*/
/* --------------------------- Functional Range ---------------------------- */
#define USB_CFG_HAVE_INTRIN_ENDPOINT 1
/* Define this to 1 if you want to compile a version with two endpoints: The
* default control endpoint 0 and an interrupt-in endpoint (any other endpoint
* number).
*/
#define USB_CFG_HAVE_INTRIN_ENDPOINT3 1
/* Define this to 1 if you want to compile a version with three endpoints: The
* default control endpoint 0, an interrupt-in endpoint 3 (or the number
* configured below) and a catch-all default interrupt-in endpoint as above.
* You must also define USB_CFG_HAVE_INTRIN_ENDPOINT to 1 for this feature.
*/
#define USB_CFG_EP3_NUMBER 3
/* If the so-called endpoint 3 is used, it can now be configured to any other
* endpoint number (except 0) with this macro. Default if undefined is 3.
*/
/* #define USB_INITIAL_DATATOKEN USBPID_DATA1 */
/* The above macro defines the startup condition for data toggling on the
* interrupt/bulk endpoints 1 and 3. Defaults to USBPID_DATA1.
* Since the token is toggled BEFORE sending any data, the first packet is
* sent with the oposite value of this configuration!
*/
#define USB_CFG_IMPLEMENT_HALT 0
/* Define this to 1 if you also want to implement the ENDPOINT_HALT feature
* for endpoint 1 (interrupt endpoint). Although you may not need this feature,
* it is required by the standard. We have made it a config option because it
* bloats the code considerably.
*/
#define USB_CFG_SUPPRESS_INTR_CODE 0
/* Define this to 1 if you want to declare interrupt-in endpoints, but don't
* want to send any data over them. If this macro is defined to 1, functions
* usbSetInterrupt() and usbSetInterrupt3() are omitted. This is useful if
* you need the interrupt-in endpoints in order to comply to an interface
* (e.g. HID), but never want to send any data. This option saves a couple
* of bytes in flash memory and the transmit buffers in RAM.
*/
#define USB_CFG_INTR_POLL_INTERVAL 10
/* If you compile a version with endpoint 1 (interrupt-in), this is the poll
* interval. The value is in milliseconds and must not be less than 10 ms for
* low speed devices.
*/
#define USB_CFG_IS_SELF_POWERED 0
/* Define this to 1 if the device has its own power supply. Set it to 0 if the
* device is powered from the USB bus.
*/
#define USB_CFG_MAX_BUS_POWER 100
/* Set this variable to the maximum USB bus power consumption of your device.
* The value is in milliamperes. [It will be divided by two since USB
* communicates power requirements in units of 2 mA.]
*/
#define USB_CFG_IMPLEMENT_FN_WRITE 1
/* Set this to 1 if you want usbFunctionWrite() to be called for control-out
* transfers. Set it to 0 if you don't need it and want to save a couple of
* bytes.
*/
#define USB_CFG_IMPLEMENT_FN_READ 0
/* Set this to 1 if you need to send control replies which are generated
* "on the fly" when usbFunctionRead() is called. If you only want to send
* data from a static buffer, set it to 0 and return the data from
* usbFunctionSetup(). This saves a couple of bytes.
*/
#define USB_CFG_IMPLEMENT_FN_WRITEOUT 0
/* Define this to 1 if you want to use interrupt-out (or bulk out) endpoints.
* You must implement the function usbFunctionWriteOut() which receives all
* interrupt/bulk data sent to any endpoint other than 0. The endpoint number
* can be found in 'usbRxToken'.
*/
#define USB_CFG_HAVE_FLOWCONTROL 0
/* Define this to 1 if you want flowcontrol over USB data. See the definition
* of the macros usbDisableAllRequests() and usbEnableAllRequests() in
* usbdrv.h.
*/
#define USB_CFG_DRIVER_FLASH_PAGE 0
/* If the device has more than 64 kBytes of flash, define this to the 64 k page
* where the driver's constants (descriptors) are located. Or in other words:
* Define this to 1 for boot loaders on the ATMega128.
*/
#define USB_CFG_LONG_TRANSFERS 0
/* Define this to 1 if you want to send/receive blocks of more than 254 bytes
* in a single control-in or control-out transfer. Note that the capability
* for long transfers increases the driver size.
*/
/* #define USB_RX_USER_HOOK(data, len) if(usbRxToken == (uchar)USBPID_SETUP) blinkLED(); */
/* This macro is a hook if you want to do unconventional things. If it is
* defined, it's inserted at the beginning of received message processing.
* If you eat the received message and don't want default processing to
* proceed, do a return after doing your things. One possible application
* (besides debugging) is to flash a status LED on each packet.
*/
/* #define USB_RESET_HOOK(resetStarts) if(!resetStarts){hadUsbReset();} */
/* This macro is a hook if you need to know when an USB RESET occurs. It has
* one parameter which distinguishes between the start of RESET state and its
* end.
*/
/* #define USB_SET_ADDRESS_HOOK() hadAddressAssigned(); */
/* This macro (if defined) is executed when a USB SET_ADDRESS request was
* received.
*/
#define USB_COUNT_SOF 0
/* define this macro to 1 if you need the global variable "usbSofCount" which
* counts SOF packets. This feature requires that the hardware interrupt is
* connected to D- instead of D+.
*/
/* #ifdef __ASSEMBLER__
* macro myAssemblerMacro
* in YL, TCNT0
* sts timer0Snapshot, YL
* endm
* #endif
* #define USB_SOF_HOOK myAssemblerMacro
* This macro (if defined) is executed in the assembler module when a
* Start Of Frame condition is detected. It is recommended to define it to
* the name of an assembler macro which is defined here as well so that more
* than one assembler instruction can be used. The macro may use the register
* YL and modify SREG. If it lasts longer than a couple of cycles, USB messages
* immediately after an SOF pulse may be lost and must be retried by the host.
* What can you do with this hook? Since the SOF signal occurs exactly every
* 1 ms (unless the host is in sleep mode), you can use it to tune OSCCAL in
* designs running on the internal RC oscillator.
* Please note that Start Of Frame detection works only if D- is wired to the
* interrupt, not D+. THIS IS DIFFERENT THAN MOST EXAMPLES!
*/
#define USB_CFG_CHECK_DATA_TOGGLING 0
/* define this macro to 1 if you want to filter out duplicate data packets
* sent by the host. Duplicates occur only as a consequence of communication
* errors, when the host does not receive an ACK. Please note that you need to
* implement the filtering yourself in usbFunctionWriteOut() and
* usbFunctionWrite(). Use the global usbCurrentDataToken and a static variable
* for each control- and out-endpoint to check for duplicate packets.
*/
#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH 0
/* define this macro to 1 if you want the function usbMeasureFrameLength()
* compiled in. This function can be used to calibrate the AVR's RC oscillator.
*/
#define USB_USE_FAST_CRC 0
/* The assembler module has two implementations for the CRC algorithm. One is
* faster, the other is smaller. This CRC routine is only used for transmitted
* messages where timing is not critical. The faster routine needs 31 cycles
* per byte while the smaller one needs 61 to 69 cycles. The faster routine
* may be worth the 32 bytes bigger code size if you transmit lots of data and
* run the AVR close to its limit.
*/
/* -------------------------- Device Description --------------------------- */
#define USB_CFG_VENDOR_ID (VENDOR_ID & 0xFF), ((VENDOR_ID >> 8) & 0xFF)
/* USB vendor ID for the device, low byte first. If you have registered your
* own Vendor ID, define it here. Otherwise you may use one of obdev's free
* shared VID/PID pairs. Be sure to read USB-IDs-for-free.txt for rules!
* *** IMPORTANT NOTE ***
* This template uses obdev's shared VID/PID pair for Vendor Class devices
* with libusb: 0x16c0/0x5dc. Use this VID/PID pair ONLY if you understand
* the implications!
*/
#define USB_CFG_DEVICE_ID (PRODUCT_ID & 0xFF), ((PRODUCT_ID >> 8) & 0xFF)
/* This is the ID of the product, low byte first. It is interpreted in the
* scope of the vendor ID. If you have registered your own VID with usb.org
* or if you have licensed a PID from somebody else, define it here. Otherwise
* you may use one of obdev's free shared VID/PID pairs. See the file
* USB-IDs-for-free.txt for details!
* *** IMPORTANT NOTE ***
* This template uses obdev's shared VID/PID pair for Vendor Class devices
* with libusb: 0x16c0/0x5dc. Use this VID/PID pair ONLY if you understand
* the implications!
*/
#define USB_CFG_DEVICE_VERSION 0x00, 0x01
/* Version number of the device: Minor number first, then major number.
*/
#define USB_CFG_VENDOR_NAME 't', '.', 'm', '.', 'k', '.'
#define USB_CFG_VENDOR_NAME_LEN 6
/* These two values define the vendor name returned by the USB device. The name
* must be given as a list of characters under single quotes. The characters
* are interpreted as Unicode (UTF-16) entities.
* If you don't want a vendor name string, undefine these macros.
* ALWAYS define a vendor name containing your Internet domain name if you use
* obdev's free shared VID/PID pair. See the file USB-IDs-for-free.txt for
* details.
*/
#define USB_CFG_DEVICE_NAME 'P', 'S', '/', '2', ' ', 'k', 'e', 'y', 'b', 'o', 'a', 'r', 'd', ' ', 'c', 'o', 'n', 'v', 'e', 'r', 't', 'e', 'r'
#define USB_CFG_DEVICE_NAME_LEN 23
/* Same as above for the device name. If you don't want a device name, undefine
* the macros. See the file USB-IDs-for-free.txt before you assign a name if
* you use a shared VID/PID.
*/
/*#define USB_CFG_SERIAL_NUMBER 'N', 'o', 'n', 'e' */
/*#define USB_CFG_SERIAL_NUMBER_LEN 0 */
/* Same as above for the serial number. If you don't want a serial number,
* undefine the macros.
* It may be useful to provide the serial number through other means than at
* compile time. See the section about descriptor properties below for how
* to fine tune control over USB descriptors such as the string descriptor
* for the serial number.
*/
#define USB_CFG_DEVICE_CLASS 0
#define USB_CFG_DEVICE_SUBCLASS 0
/* See USB specification if you want to conform to an existing device class.
* Class 0xff is "vendor specific".
*/
#define USB_CFG_INTERFACE_CLASS 3 /* HID */
#define USB_CFG_INTERFACE_SUBCLASS 1 /* Boot */
#define USB_CFG_INTERFACE_PROTOCOL 1 /* Keyboard */
/* See USB specification if you want to conform to an existing device class or
* protocol. The following classes must be set at interface level:
* HID class is 3, no subclass and protocol required (but may be useful!)
* CDC class is 2, use subclass 2 and protocol 1 for ACM
*/
#define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH 0
/* Define this to the length of the HID report descriptor, if you implement
* an HID device. Otherwise don't define it or define it to 0.
* If you use this define, you must add a PROGMEM character array named
* "usbHidReportDescriptor" to your code which contains the report descriptor.
* Don't forget to keep the array and this define in sync!
*/
/* #define USB_PUBLIC static */
/* Use the define above if you #include usbdrv.c instead of linking against it.
* This technique saves a couple of bytes in flash memory.
*/
/* ------------------- Fine Control over USB Descriptors ------------------- */
/* If you don't want to use the driver's default USB descriptors, you can
* provide our own. These can be provided as (1) fixed length static data in
* flash memory, (2) fixed length static data in RAM or (3) dynamically at
* runtime in the function usbFunctionDescriptor(). See usbdrv.h for more
* information about this function.
* Descriptor handling is configured through the descriptor's properties. If
* no properties are defined or if they are 0, the default descriptor is used.
* Possible properties are:
* + USB_PROP_IS_DYNAMIC: The data for the descriptor should be fetched
* at runtime via usbFunctionDescriptor(). If the usbMsgPtr mechanism is
* used, the data is in FLASH by default. Add property USB_PROP_IS_RAM if
* you want RAM pointers.
* + USB_PROP_IS_RAM: The data returned by usbFunctionDescriptor() or found
* in static memory is in RAM, not in flash memory.
* + USB_PROP_LENGTH(len): If the data is in static memory (RAM or flash),
* the driver must know the descriptor's length. The descriptor itself is
* found at the address of a well known identifier (see below).
* List of static descriptor names (must be declared PROGMEM if in flash):
* char usbDescriptorDevice[];
* char usbDescriptorConfiguration[];
* char usbDescriptorHidReport[];
* char usbDescriptorString0[];
* int usbDescriptorStringVendor[];
* int usbDescriptorStringDevice[];
* int usbDescriptorStringSerialNumber[];
* Other descriptors can't be provided statically, they must be provided
* dynamically at runtime.
*
* Descriptor properties are or-ed or added together, e.g.:
* #define USB_CFG_DESCR_PROPS_DEVICE (USB_PROP_IS_RAM | USB_PROP_LENGTH(18))
*
* The following descriptors are defined:
* USB_CFG_DESCR_PROPS_DEVICE
* USB_CFG_DESCR_PROPS_CONFIGURATION
* USB_CFG_DESCR_PROPS_STRINGS
* USB_CFG_DESCR_PROPS_STRING_0
* USB_CFG_DESCR_PROPS_STRING_VENDOR
* USB_CFG_DESCR_PROPS_STRING_PRODUCT
* USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER
* USB_CFG_DESCR_PROPS_HID
* USB_CFG_DESCR_PROPS_HID_REPORT
* USB_CFG_DESCR_PROPS_UNKNOWN (for all descriptors not handled by the driver)
*
* Note about string descriptors: String descriptors are not just strings, they
* are Unicode strings prefixed with a 2 byte header. Example:
* int serialNumberDescriptor[] = {
* USB_STRING_DESCRIPTOR_HEADER(6),
* 'S', 'e', 'r', 'i', 'a', 'l'
* };
*/
#define USB_CFG_DESCR_PROPS_DEVICE 0
#define USB_CFG_DESCR_PROPS_CONFIGURATION USB_PROP_IS_DYNAMIC
//#define USB_CFG_DESCR_PROPS_CONFIGURATION 0
#define USB_CFG_DESCR_PROPS_STRINGS 0
#define USB_CFG_DESCR_PROPS_STRING_0 0
#define USB_CFG_DESCR_PROPS_STRING_VENDOR 0
#define USB_CFG_DESCR_PROPS_STRING_PRODUCT 0
#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER 0
//#define USB_CFG_DESCR_PROPS_HID USB_PROP_IS_DYNAMIC
#define USB_CFG_DESCR_PROPS_HID 0
#define USB_CFG_DESCR_PROPS_HID_REPORT USB_PROP_IS_DYNAMIC
//#define USB_CFG_DESCR_PROPS_HID_REPORT 0
#define USB_CFG_DESCR_PROPS_UNKNOWN 0
/* ----------------------- Optional MCU Description ------------------------ */
/* The following configurations have working defaults in usbdrv.h. You
* usually don't need to set them explicitly. Only if you want to run
* the driver on a device which is not yet supported or with a compiler
* which is not fully supported (such as IAR C) or if you use a differnt
* interrupt than INT0, you may have to define some of these.
*/
/* #define USB_INTR_CFG MCUCR */
/* #define USB_INTR_CFG_SET ((1 << ISC00) | (1 << ISC01)) */
/* #define USB_INTR_CFG_CLR 0 */
/* #define USB_INTR_ENABLE GIMSK */
/* #define USB_INTR_ENABLE_BIT INT0 */
/* #define USB_INTR_PENDING GIFR */
/* #define USB_INTR_PENDING_BIT INTF0 */
/* #define USB_INTR_VECTOR INT0_vect */
#endif /* __usbconfig_h_included__ */