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Keyboard: Palm serial keyboard USB converter (#4485)

* Initial palm_usb support

* removing left over sun .c file

* fixing licenses

* actually adding updated files

* fixing build error

* more include cleanup
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milestogo authored and drashna committed Dec 7, 2018
1 parent 2fb1484 commit 3f96ba011359e7e842a5f917c11886c1867ba207
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/*
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/>.
*/

/* This code makes use of cy384's Arduino USB HID adapter for the Palm Portable
Keyboard, released under the BSD licence */




#pragma once

#define CUSTOM_MATRIX 2

#define VENDOR_ID 0xFEED
#define PRODUCT_ID 0x0001
#define DEVICE_VER 0x0100
#define MANUFACTURER QMK
#define PRODUCT Stowaway converter
#define DESCRIPTION USB converter for Stowaway keyboard

// IO pins to serial
// https://deskthority.net/wiki/Arduino_Pro_Micro for pin lookup
#define VCC_PIN D1 // pro micro 2
#define RX_PIN D0 //pro micro 3 , was 8 on cy384
#define RTS_PIN C6 // 5 //[ was D4 // 4 on the cy384
#define DCD_PIN E6 //7

// if using the particular arduino pinout of CY384
#ifdef CY384
#define GND_PIN D7 //6
#define PULLDOWN_PIN B1 // 15
#endif

#ifndef HANDSPRING
// Set to 1 for Handspring or to disable RTS/DCD based handshake.
#define HANDSPRING 0
#endif

#define MAXDROP 10 // check if keyboard is connected every X polling cycles
#define SLEEP_TIMEOUT 500000 // check keyboard/reset this many millis


#define MATRIX_ROWS 12
#define MATRIX_COLS 8

/* key combination for command */
#define IS_COMMAND() ( \
keyboard_report->mods == (MOD_BIT(KC_LALT) | MOD_BIT(KC_RALT)) || \
keyboard_report->mods == (MOD_BIT(KC_LGUI) | MOD_BIT(KC_RGUI)) || \
keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
)


/* Serial(USART) configuration
* asynchronous, negative logic, 9600baud, no flow control
* 1-start bit, 8-data bit, non parity, 1-stop bit
*/
#define SERIAL_SOFT_BAUD 9600
#define SERIAL_SOFT_PARITY_NONE
#define SERIAL_SOFT_BIT_ORDER_LSB
#if (HANDSPRING == 0)
#define SERIAL_SOFT_LOGIC_NEGATIVE //RS232 logic
#endif
/* RXD Port */
#define SERIAL_SOFT_RXD_ENABLE

// we are using Pro micro pin 3 / D0 as serial
#define SERIAL_SOFT_RXD_DDR DDRD
#define SERIAL_SOFT_RXD_PORT PORTD
#define SERIAL_SOFT_RXD_PIN PIND
#define SERIAL_SOFT_RXD_BIT 0
#define SERIAL_SOFT_RXD_VECT INT0_vect

/* RXD Interupt */
#define SERIAL_SOFT_RXD_INIT() do { \
/* pin configuration: input with pull-up */ \
SERIAL_SOFT_RXD_DDR &= ~(1<<SERIAL_SOFT_RXD_BIT); \
SERIAL_SOFT_RXD_PORT |= (1<<SERIAL_SOFT_RXD_BIT); \
/* enable interrupt: INT0(rising edge) */ \
EICRA |= ((1<<ISC01)|(1<<ISC00)); \
EIMSK |= (1<<INT0); \
sei(); \
} while (0)
#define SERIAL_SOFT_RXD_INT_ENTER()
#define SERIAL_SOFT_RXD_INT_EXIT() do { \
/* clear interrupt flag */ \
EIFR = (1<<INTF0); \
} while (0)
#define SERIAL_SOFT_RXD_READ() (SERIAL_SOFT_RXD_PIN&(1<<SERIAL_SOFT_RXD_BIT))

/* TXD Port */
#define SERIAL_SOFT_TXD_ENABLE
#define SERIAL_SOFT_TXD_DDR DDRD
#define SERIAL_SOFT_TXD_PORT PORTD
#define SERIAL_SOFT_TXD_PIN PIND
#define SERIAL_SOFT_TXD_BIT 3
#define SERIAL_SOFT_TXD_HI() do { SERIAL_SOFT_TXD_PORT |= (1<<SERIAL_SOFT_TXD_BIT); } while (0)
#define SERIAL_SOFT_TXD_LO() do { SERIAL_SOFT_TXD_PORT &= ~(1<<SERIAL_SOFT_TXD_BIT); } while (0)
#define SERIAL_SOFT_TXD_INIT() do { \
/* pin configuration: output */ \
SERIAL_SOFT_TXD_DDR |= (1<<SERIAL_SOFT_TXD_BIT); \
/* idle */ \
SERIAL_SOFT_TXD_ON(); \
} while (0)


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