Added USART implementation for PS/2 signal handling.
parent
579991b927
commit
9addeae872
1
keymap.h
1
keymap.h
|
@ -20,7 +20,6 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
#include "usb_keycodes.h"
|
||||
|
||||
|
||||
/* keycode in specific layer */
|
||||
|
|
1
layer.c
1
layer.c
|
@ -19,6 +19,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
#include "host.h"
|
||||
#include "debug.h"
|
||||
#include "timer.h"
|
||||
#include "usb_keycodes.h"
|
||||
#include "layer.h"
|
||||
|
||||
|
||||
|
|
|
@ -95,10 +95,8 @@ 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)
|
||||
|
|
|
@ -0,0 +1,56 @@
|
|||
#
|
||||
# Makefile for PJRC Teensy
|
||||
#
|
||||
|
||||
|
||||
# Target file name (without extension).
|
||||
TARGET = ps2_usb_pjrc_usart
|
||||
|
||||
# Directory common source filess exist
|
||||
COMMON_DIR = ..
|
||||
|
||||
# Directory keyboard dependent files exist
|
||||
TARGET_DIR = .
|
||||
|
||||
# keyboard dependent files
|
||||
SRC = main.c \
|
||||
keymap.c \
|
||||
matrix.c \
|
||||
led.c \
|
||||
ps2_usart.c
|
||||
|
||||
CONFIG_H = config_pjrc_usart.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
|
||||
#MCU = at90usb162 # Teensy 1.0
|
||||
MCU = atmega32u4 # Teensy 2.0
|
||||
#MCU = at90usb646 # Teensy++ 1.0
|
||||
#MCU = at90usb1286 # Teensy++ 2.0
|
||||
|
||||
|
||||
# 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 = 16000000
|
||||
|
||||
|
||||
# Build Options
|
||||
# *Comment out* to disable the options.
|
||||
#
|
||||
MOUSEKEY_ENABLE = yes # Mouse keys
|
||||
EXTRAKEY_ENABLE = yes # Audio control and System control
|
||||
NKRO_ENABLE = yes # USB Nkey Rollover
|
||||
|
||||
|
||||
|
||||
#---------------- Programming Options --------------------------
|
||||
PROGRAM_CMD = teensy_loader_cli -mmcu=$(MCU) -w -v $(TARGET).hex
|
||||
|
||||
|
||||
|
||||
include $(COMMON_DIR)/pjrc.mk
|
||||
include $(COMMON_DIR)/common.mk
|
|
@ -1,40 +1,56 @@
|
|||
PS/2 to USB keyboard converter
|
||||
==============================
|
||||
This firmware converts PS/2 keyboard protocol to USB and for now supports only Scan Code Set 2.
|
||||
This will works on USB AVR(ATMega32U4, AT90USB) or V-USB.
|
||||
|
||||
|
||||
Features
|
||||
--------
|
||||
Mouse keys
|
||||
You can emulates mouse move and button click using keyboard.
|
||||
|
||||
System/Media control
|
||||
You can sends Power event, Volume down/up and Mute.
|
||||
|
||||
USB NKRO(actually 120KRO+8Modifiers)
|
||||
You can tolggles NKRO feature.
|
||||
|
||||
Keymap customization
|
||||
You can customize keymaps easily by editing source code. See keymap.c.
|
||||
|
||||
|
||||
PS/2 signal handling implementations
|
||||
------------------------------------
|
||||
Following three methods are used to implement PS/2 signal handling.
|
||||
a. Simple and stupid wait & read loop(intensive use of cycles)
|
||||
This is implemented with (expected) portable C code for reference. See ps2.c.
|
||||
b. Interrupt driven
|
||||
See ps2_intr.c
|
||||
c. Using USART hardware module(no cycle needed)
|
||||
This uses AVR USART function to recevie PS/2 signal and be used in V-USB converter.
|
||||
See ps2_usart.c.
|
||||
|
||||
|
||||
Build Converter
|
||||
---------------
|
||||
0. Connect PS/2 keyboard into Teensy with 4 lines(Vcc, GND, Data, Clock).
|
||||
By default Clock is on PF0 and Data on PF1.
|
||||
You can change this pin configuration by editing config_pjrc.h.
|
||||
In this photo Vcc is yellow, GND is green, Data is red and Clock is black.
|
||||
http://img17.imageshack.us/img17/7243/201101181933.jpg
|
||||
Connect PS/2 keyboard into Teensy with 4 lines(Vcc, GND, Data, Clock).
|
||||
For a. Simple and stupid and b. Interrupt implementaion:
|
||||
By default Clock is on PF0 and Data on PF1.
|
||||
You can change this pin configuration by editing config_pjrc.h.
|
||||
In this photo Vcc is yellow, GND is green, Data is red and Clock is black.
|
||||
http://img17.imageshack.us/img17/7243/201101181933.jpg
|
||||
For c. USART implementation:
|
||||
In case of Teensny(ATMega32u4) CLock is on PD2 and Data on PD5.
|
||||
|
||||
|
||||
Build Frimware
|
||||
--------------
|
||||
1. Edit Makefile for build options and MCU setting.
|
||||
Use 'atmega32u4' for Teensy 2.0 or 'at90usb1286' for Teensy++ 2.0.
|
||||
Use 'atmega32u4' for Teensy 2.0 or 'at90usb1286' for Teensy++ 2.0.
|
||||
2. make
|
||||
Just type 'make' in a terminal.
|
||||
Just type 'make' in a terminal.
|
||||
Use '-f Makefile.pjrc_intr' option to use b. Interrupt.
|
||||
Use '-f Makefile.pjrc_usart' option to use c. USART.
|
||||
Use '-f Makefile.vusb' option to build V-USB converter.
|
||||
3. program with Teensy Loader.
|
||||
http://www.pjrc.com/teensy/loader.html
|
||||
http://www.pjrc.com/teensy/loader.html
|
||||
|
||||
|
||||
Demonstration of Features
|
||||
|
@ -97,34 +113,4 @@ To define keymap layer switching may needs a bit of your effort at this time.
|
|||
),
|
||||
|
||||
|
||||
Multimedia keys
|
||||
---------------
|
||||
Following lists PS/2 special keys supported by Windows.
|
||||
http://msdn.microsoft.com/en-us/windows/hardware/gg463372.aspx
|
||||
|
||||
Key PS/2(Set2) HID
|
||||
---------------------------------------------------
|
||||
System Power E0 37 01 0081
|
||||
System Sleep E0 3F 01 0082
|
||||
System Wake E0 5E 01 0083
|
||||
System Mute E0 23 0C 00E2
|
||||
Volume Up E0 32 0C 00E9
|
||||
Volume Down E0 21 0C 00EA
|
||||
Scan Next Track E0 4D 0C 00B5
|
||||
Scan Previous Track E0 15 0C 00B6
|
||||
Stop E0 3B 0C 00B7
|
||||
Play/Pause E0 34 0C 00CD
|
||||
Media Select E0 50 0C 0183
|
||||
Mail E0 48 0C 018A
|
||||
Calculator E0 2B 0C 0192
|
||||
My Computer E0 40 0C 0194
|
||||
WWW Search E0 10 0C 0221
|
||||
WWW Home E0 3A 0C 0223
|
||||
WWW Back E0 38 0C 0224
|
||||
WWW Forward E0 30 0C 0225
|
||||
WWW Stop E0 28 0C 0226
|
||||
WWW Refresh E0 20 0C 0227
|
||||
WWW Favorites E0 18 0C 022A
|
||||
|
||||
|
||||
EOF
|
||||
|
|
|
@ -0,0 +1,91 @@
|
|||
/*
|
||||
Copyright 2012 Jun Wako <wakojun@gmail.com>
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation, either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#ifndef CONFIG_H
|
||||
#define CONFIG_H
|
||||
|
||||
/* controller configuration */
|
||||
#include "controller_teensy.h"
|
||||
|
||||
#define VENDOR_ID 0xFEED
|
||||
#define PRODUCT_ID 0x6513
|
||||
#define MANUFACTURER t.m.k.
|
||||
#define PRODUCT PS/2 keyboard converter(USART)
|
||||
#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 == (MOD_BIT(KB_LSHIFT) | MOD_BIT(KB_RSHIFT)) || \
|
||||
keyboard_report->mods == (MOD_BIT(KB_LCTRL) | MOD_BIT(KB_RSHIFT)) \
|
||||
)
|
||||
|
||||
|
||||
/* mouse keys */
|
||||
#ifdef MOUSEKEY_ENABLE
|
||||
# define MOUSEKEY_DELAY_TIME 255
|
||||
#endif
|
||||
|
||||
|
||||
/* PS/2 lines */
|
||||
#define PS2_CLOCK_PORT PORTF
|
||||
#define PS2_CLOCK_PIN PINF
|
||||
#define PS2_CLOCK_DDR DDRF
|
||||
#define PS2_CLOCK_BIT 5
|
||||
#define PS2_DATA_PORT PORTF
|
||||
#define PS2_DATA_PIN PINF
|
||||
#define PS2_DATA_DDR DDRF
|
||||
#define PS2_DATA_BIT 2
|
||||
|
||||
|
||||
// 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); \
|
||||
UCSR1C = ((1 << UMSEL10) | \
|
||||
(3 << UPM10) | \
|
||||
(0 << USBS1) | \
|
||||
(3 << UCSZ10) | \
|
||||
(0 << UCPOL1)); \
|
||||
UCSR1A = 0; \
|
||||
UBRR1H = 0; \
|
||||
UBRR1L = 0; \
|
||||
} while (0)
|
||||
#define PS2_USART_RX_INT_ON() do { \
|
||||
UCSR1B = ((1 << RXCIE1) | \
|
||||
(1 << RXEN1)); \
|
||||
} while (0)
|
||||
#define PS2_USART_RX_POLL_ON() do { \
|
||||
UCSR1B = (1 << RXEN1); \
|
||||
} while (0)
|
||||
#define PS2_USART_OFF() do { \
|
||||
UCSR1C = 0; \
|
||||
UCSR1B &= ~((1 << RXEN1) | \
|
||||
(1 << TXEN1)); \
|
||||
} while (0)
|
||||
#define PS2_USART_RX_READY (UCSR1A & (1<<RXC1))
|
||||
#define PS2_USART_RX_DATA UDR1
|
||||
#define PS2_USART_ERROR (UCSR1A & ((1<<FE1) | (1<<DOR1) | (1<<UPE1)))
|
||||
#define PS2_USART_RX_VECT USART1_RX_vect
|
||||
|
||||
#endif
|
Loading…
Reference in New Issue