+// SPDX-License-Identifier: MIT
+
+#include <linux/input.h>
+#include <sys/ioctl.h>
+#include <pthread.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
#include <termios.h>
#include <unistd.h>
-#include <linux/input.h>
-int kbhit()
+#include "platforms/platforms.h"
+#include "input.h"
+
+#define NONE 0x80
+
+static int lshift = 0, rshift = 0,/* lctrl = 0, rctrl = 0,*/ lalt = 0, altgr = 0;
+extern int mouse_fd;
+extern int keyboard_fd;
+
+// n.b. $fe and $ff are mapped to newmouse standard wheel up/down keycodes, nonexistant on amiga keyboards
+char keymap_amiga[256] = {
+/* 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F */
+/*00*/ 0x80, 0x45, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x41, 0x42,
+/*10*/ 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A, 0x1B, 0x44, 0x63, 0x20, 0x21,
+/*20*/ 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, 0x28, 0x29, 0x2A, 0x00, 0x60, 0x2B, 0x31, 0x32, 0x33, 0x34,
+/*30*/ 0x35, 0x36, 0x37, 0x38, 0x39, 0x3A, 0x61, 0x5D, 0x64, 0x40, NONE, 0x50, 0x51, 0x52, 0x53, 0x54,
+/*40*/ 0x55, 0x56, 0x57, 0x58, 0x59, 0x5B, NONE, 0x3D, 0x3E, 0x3F, 0x4A, 0x2D, 0x2E, 0x2F, 0x5E, 0x1D,
+/*50*/ 0x1E, 0x1F, 0x0F, 0x3C, NONE, NONE, 0x30, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*60*/ 0x43, NONE, 0x5C, NONE, 0x65, NONE, 0x5F, 0x4C, 0x5A, 0x4F, 0x4E, NONE, 0x4D, NONE, 0x0D, 0x46,
+/*70*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, 0x66, 0x67, 0x67,
+/*80*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*90*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*A0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*B0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*C0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*D0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*E0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE,
+/*F0*/ NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, NONE, 0x7A, 0x7B,
+};
+
+int handle_modifier(struct input_event *ev) {
+ int *target_modifier = NULL;
+ if (ev->value != KEYPRESS_REPEAT && (ev->code == KEY_LEFTSHIFT || ev->code == KEY_RIGHTSHIFT || ev->code == KEY_LEFTALT || ev->code == KEY_RIGHTALT || ev->code == KEY_LEFTCTRL || ev->code == KEY_RIGHTCTRL)) {
+ switch(ev->code) {
+ case KEY_LEFTSHIFT:
+ target_modifier = &lshift;
+ break;
+ case KEY_RIGHTSHIFT:
+ target_modifier = &rshift;
+ break;
+ case KEY_LEFTALT:
+ target_modifier = &lalt;
+ break;
+ case KEY_RIGHTALT:
+ target_modifier = &altgr;
+ break;
+ case KEY_LEFTCTRL:
+ target_modifier = &lshift;
+ break;
+ case KEY_RIGHTCTRL:
+ target_modifier = &rshift;
+ break;
+ }
+ *target_modifier = (ev->value == KEYPRESS_RELEASE) ? 0 : 1;
+ return 1;
+ }
+ else {
+ return 0;
+ }
+}
+
+#define KEYCASE(a, b, c)case a: return (lshift || rshift) ? c : b;
+
+/**
+ * translates keycodes back into a simpler enumerable value for handling emulator command events
+ *
+ * @param *struct/input_event ev pointer to input layer event structure
+ * @return char
+ */
+char char_from_input_event(struct input_event *ev) {
+ switch(ev->code) {
+ KEYCASE(KEY_A, 'a', 'A');
+ KEYCASE(KEY_B, 'b', 'B');
+ KEYCASE(KEY_C, 'c', 'C');
+ KEYCASE(KEY_D, 'd', 'D');
+ KEYCASE(KEY_E, 'e', 'E');
+ KEYCASE(KEY_F, 'f', 'F');
+ KEYCASE(KEY_G, 'g', 'G');
+ KEYCASE(KEY_H, 'h', 'H');
+ KEYCASE(KEY_I, 'i', 'I');
+ KEYCASE(KEY_J, 'j', 'J');
+ KEYCASE(KEY_K, 'k', 'K');
+ KEYCASE(KEY_L, 'l', 'L');
+ KEYCASE(KEY_M, 'm', 'M');
+ KEYCASE(KEY_N, 'n', 'N');
+ KEYCASE(KEY_O, 'o', 'O');
+ KEYCASE(KEY_P, 'p', 'P');
+ KEYCASE(KEY_Q, 'q', 'Q');
+ KEYCASE(KEY_R, 'r', 'R');
+ KEYCASE(KEY_S, 's', 'S');
+ KEYCASE(KEY_T, 't', 'T');
+ KEYCASE(KEY_U, 'u', 'U');
+ KEYCASE(KEY_V, 'c', 'V');
+ KEYCASE(KEY_W, 'w', 'W');
+ KEYCASE(KEY_X, 'x', 'X');
+ KEYCASE(KEY_Y, 'y', 'Y');
+ KEYCASE(KEY_Z, 'z', 'Z');
+ KEYCASE(KEY_1, '1', '!');
+ KEYCASE(KEY_2, '2', '@');
+ KEYCASE(KEY_3, '3', '#');
+ KEYCASE(KEY_4, '4', '$');
+ KEYCASE(KEY_5, '5', '%');
+ KEYCASE(KEY_6, '6', '^');
+ KEYCASE(KEY_7, '7', '&');
+ KEYCASE(KEY_8, '8', '*');
+ KEYCASE(KEY_9, '9', '(');
+ KEYCASE(KEY_0, '0', ')');
+ KEYCASE(KEY_F12, 0x1B, 0x1B);
+ KEYCASE(KEY_PAUSE, 0x01, 0x01);
+ default:
+ return 0;
+ }
+}
+
+int get_key_char(char *c, char *code, char *event_type)
{
+ if (keyboard_fd == -1)
+ return 0;
+
+ struct input_event ie;
+ while(read(keyboard_fd, &ie, sizeof(struct input_event)) != -1) {
+ if (ie.type == EV_KEY) {
+ handle_modifier(&ie);
+ char ret = char_from_input_event(&ie);
+ *c = ret;
+ *code = ie.code;
+ *event_type = ie.value;
+ return 1;
+ }
+ }
+
return 0;
}
-extern int mouse_fd;
+uint8_t mouse_x = 0, mouse_y = 0;
-int get_mouse_status(char *x, char *y, char *b) {
- struct input_event ie;
- if (read(mouse_fd, &ie, sizeof(struct input_event)) != -1) {
- *b = ((char *)&ie)[0];
- *x = ((char *)&ie)[1];
- *y = ((char *)&ie)[2];
+int get_mouse_status(uint8_t *x, uint8_t *y, uint8_t *b, uint8_t *e) {
+ uint8_t mouse_ev[4];
+ if (read(mouse_fd, &mouse_ev, 4) != -1) {
+ *b = ((uint8_t *)&mouse_ev)[0];
+ *e = ((uint8_t *)&mouse_ev)[3];
+
+ mouse_x += ((uint8_t *)&mouse_ev)[1];
+ *x = mouse_x;
+ mouse_y += (-((uint8_t *)&mouse_ev)[2]);
+ *y = mouse_y;
return 1;
}
return 0;
}
+
+static uint8_t queued_keypresses = 0, queue_output_pos = 0, queue_input_pos = 0;
+static uint8_t queued_keys[256];
+static uint8_t queued_events[256];
+
+void clear_keypress_queue() {
+ memset(queued_keys, 0x80, 256);
+ memset(queued_events, 0x80, 256);
+ queued_keypresses = 0;
+ queue_output_pos = 0;
+ queue_input_pos = 0;
+}
+
+int queue_keypress(uint8_t keycode, uint8_t event_type, uint8_t platform) {
+ char *keymap = NULL;
+ switch (platform) {
+ case PLATFORM_AMIGA:
+ if (event_type != KEYPRESS_REPEAT)
+ keymap = keymap_amiga;
+ break;
+ default:
+ break;
+ }
+ if (keymap != NULL) {
+ if (keymap[keycode] != NONE) {
+ if (queued_keypresses < 255) {
+ // printf("Keypress queued, matched %.2X to host key code %.2X\n", keycode, keymap[keycode]);
+ queued_keys[queue_output_pos] = keymap[keycode];
+ queued_events[queue_output_pos] = event_type;
+ queue_output_pos++;
+ queued_keypresses++;
+ return 1;
+ }
+ }
+ }
+ return 0;
+}
+
+int get_num_kb_queued() {
+ return queued_keypresses;
+}
+
+void pop_queued_key(uint8_t *c, uint8_t *t) {
+ if (queued_keypresses == 0) {
+ *c = NONE;
+ *t = NONE;
+ return;
+ }
+ *c = queued_keys[queue_input_pos];
+ *t = queued_events[queue_input_pos];
+ queue_input_pos++;
+ queued_keypresses--;
+ return;
+}
+
+int grab_device(int fd) {
+ int rc = 0;
+ rc = ioctl(fd, EVIOCGRAB, (void *)1);
+ return rc;
+}
+
+int release_device(int fd) {
+ int rc = 0;
+ rc = ioctl(fd, EVIOCGRAB, (void *)0);
+ return rc;
+}
projects / pistorm / blobdiff