/* * rushware_keypad.c - RushWare keypad emulation. * * Written by * Marco van den Heuvel * * This file is part of VICE, the Versatile Commodore Emulator. * See README for copyright notice. * * 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, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA. * */ #include "vice.h" #include #include #include #include "joyport.h" #include "keyboard.h" #include "rushware_keypad.h" /* Control port <--> rushware keypad connections: cport | keypad | I/O -------------------------- 1 | KEY0 | I 2 | KEY1 | I 3 | KEY2 | I 4 | KEY3 | I 6 | KEYDOWN | I 8 | GND | Ground Works on: - native joystick port(s) (x64/x64sc/xscpu64/x64dtv/xvic/xplus4) - inception joystick adapter ports (x64/x64sc/xscpu64/xvic) - multijoy joystick adapter ports (x64/x64sc/xscpu64) - spaceballs joystick adapter ports (x64/x64sc/xscpu64) - cga userport joystick adapter ports (x64/x64sc/xscpu64) - hit userport joystick adapter ports (x64/x64sc/xscpu64) - hummer userport joystick adapter port (x64/x64sc/xscpu64) - kingsoft userport joystick adapter ports (x64/x64sc/xscpu64) - oem userport joystick adapter port (x64/x64sc/xscpu64) - pet userport joystick adapter port (x64/x64sc/xscpu64) - starbyte userport joystick adapter ports (x64/x64sc/xscpu64) - synergy userport joystick adapter ports (x64/x64sc/xscpu64) - stupid pet tricks userport joystick adapter port (x64/x64sc/xscpu64) - wheel of joysticks userport joystick adapter ports (x64/x64sc/xscpu64) - sidcart joystick adapter port (xplus4) The keypad has the following layout: KEYPAD KEYMAP KEYS ----------------- --------------------- | 7 | 8 | 9 | * | | 1 | 2 | 3 | 4 | ----------------- --------------------- | 4 | 5 | 6 | / | | 6 | 7 | 8 | 9 | ----------------- --------------------- | 1 | 2 | 3 | - | | 11 | 12 | 13 | 14 | ----------------- --------------------- | . | 0 | E | + | | 16 | 17 | 18 | 19 | ----------------- --------------------- E = enter The keypad has a bit pattern for each key and grounds pin 6 when a key is pressed. which results in: KEY PRESSED KEYDOWN KEY3 KEY2 KEY1 KEY0 ----------- ------- ---- ---- ---- ---- 1 x x x x ENTER 0 0 0 0 0 . 0 0 0 0 1 * 0 0 0 1 0 / 0 0 0 1 1 - 0 0 1 0 0 + 0 0 1 0 1 9 0 0 1 1 0 8 0 0 1 1 1 7 0 1 0 0 0 6 0 1 0 0 1 5 0 1 0 1 0 4 0 1 0 1 1 3 0 1 1 0 0 2 0 1 1 0 1 1 0 1 1 1 0 0 0 1 1 1 1 */ #define ROW_COL(x, y) ((x * 4) + y) #define KEYPAD_KEY_7 ROW_COL(0,0) #define KEYPAD_KEY_8 ROW_COL(0,1) #define KEYPAD_KEY_9 ROW_COL(0,2) #define KEYPAD_KEY_MULT ROW_COL(0,3) #define KEYPAD_KEY_4 ROW_COL(1,0) #define KEYPAD_KEY_5 ROW_COL(1,1) #define KEYPAD_KEY_6 ROW_COL(1,2) #define KEYPAD_KEY_DIV ROW_COL(1,3) #define KEYPAD_KEY_1 ROW_COL(2,0) #define KEYPAD_KEY_2 ROW_COL(2,1) #define KEYPAD_KEY_3 ROW_COL(2,2) #define KEYPAD_KEY_MIN ROW_COL(2,3) #define KEYPAD_KEY_DOT ROW_COL(3,0) #define KEYPAD_KEY_0 ROW_COL(3,1) #define KEYPAD_KEY_ENT ROW_COL(3,2) #define KEYPAD_KEY_PLUS ROW_COL(3,3) #define KEYPAD_KEYS_NUM 16 static int rushware_keypad_enabled = 0; static int keys[KEYPAD_KEYS_NUM]; /* ------------------------------------------------------------------------- */ static void handle_keys(int row, int col, int pressed) { /* sanity check for row and col, row should be 0-3, and col should be 1-4 */ if (row < 0 || row > 3 || col < 1 || col > 4) { return; } /* change the state of the key that the row/col is wired to */ keys[(row * 4) + col - 1] = pressed; } /* ------------------------------------------------------------------------- */ static int joyport_rushware_keypad_set_enabled(int port, int enabled) { int new_state = enabled ? 1 : 0; if (new_state == rushware_keypad_enabled) { return 0; } if (new_state) { /* enabled, clear keys and register the keypad */ memset(keys, 0, KEYPAD_KEYS_NUM * sizeof(unsigned int)); keyboard_register_joy_keypad(handle_keys); } else { /* disabled, unregister the keypad */ keyboard_register_joy_keypad(NULL); } rushware_keypad_enabled = new_state; return 0; } static uint8_t rushware_keypad_read(int port) { uint8_t retval = 0xff; if (keys[KEYPAD_KEY_ENT]) { retval = 0xe0; } if (keys[KEYPAD_KEY_DOT]) { retval = 0xe1; } if (keys[KEYPAD_KEY_MULT]) { retval = 0xe2; } if (keys[KEYPAD_KEY_DIV]) { retval = 0xe3; } if (keys[KEYPAD_KEY_MIN]) { retval = 0xe4; } if (keys[KEYPAD_KEY_PLUS]) { retval = 0xe5; } if (keys[KEYPAD_KEY_9]) { retval = 0xe6; } if (keys[KEYPAD_KEY_8]) { retval = 0xe7; } if (keys[KEYPAD_KEY_7]) { retval = 0xe8; } if (keys[KEYPAD_KEY_6]) { retval = 0xe9; } if (keys[KEYPAD_KEY_5]) { retval = 0xea; } if (keys[KEYPAD_KEY_4]) { retval = 0xeb; } if (keys[KEYPAD_KEY_3]) { retval = 0xec; } if (keys[KEYPAD_KEY_2]) { retval = 0xed; } if (keys[KEYPAD_KEY_1]) { retval = 0xee; } if (keys[KEYPAD_KEY_0]) { retval = 0xef; } joyport_display_joyport(port, JOYPORT_ID_RUSHWARE_KEYPAD, (uint16_t)~retval); return retval; } /* ------------------------------------------------------------------------- */ static joyport_t joyport_rushware_keypad_device = { "Keypad (RushWare)", /* name of the device */ JOYPORT_RES_ID_KEYPAD, /* device is a keypad, only 1 keypad can be active at the same time */ JOYPORT_IS_NOT_LIGHTPEN, /* device is NOT a lightpen */ JOYPORT_POT_OPTIONAL, /* device does NOT use the potentiometer lines */ JOYPORT_5VDC_NOT_NEEDED, /* device does NOT need +5VDC to work */ JOYSTICK_ADAPTER_ID_NONE, /* device is NOT a joystick adapter */ JOYPORT_DEVICE_KEYPAD, /* device is a Keypad */ 0, /* NO output bits */ joyport_rushware_keypad_set_enabled, /* device enable/disable function */ rushware_keypad_read, /* digital line read function */ NULL, /* NO digital line store function */ NULL, /* NO pot-x read function */ NULL, /* NO pot-x read function */ NULL, /* NO powerup function */ NULL, /* NO device write snapshot function */ NULL, /* NO device read snapshot function */ NULL, /* NO device hook function */ 0 /* NO device hook function mask */ }; /* ------------------------------------------------------------------------- */ int joyport_rushware_keypad_resources_init(void) { return joyport_device_register(JOYPORT_ID_RUSHWARE_KEYPAD, &joyport_rushware_keypad_device); }