--- /dev/null
+/*
+ * V3 Console utility
+ * Taken from Palacios console display in MINIX ( by Erik Van der Kouwe )
+ * (c) Jack lange, 2010
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+#include <assert.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <curses.h>
+#include <termios.h>
+#include <linux/kd.h>
+#include <linux/keyboard.h>
+
+#include "v3_ctrl.h"
+
+static int use_curses = 0;
+static int debug_enable = 1;
+
+
+typedef enum { CONSOLE_CURS_SET = 1,
+ CONSOLE_CHAR_SET = 2,
+ CONSOLE_SCROLL = 3,
+ CONSOLE_UPDATE = 4,
+ CONSOLE_RESOLUTION = 5 } console_op_t;
+
+
+
+static struct {
+ WINDOW * win;
+ int x;
+ int y;
+ int rows;
+ int cols;
+ struct termios termios_old;
+ unsigned char old_kbd_mode;
+} console;
+
+
+struct cursor_msg {
+ int x;
+ int y;
+} __attribute__((packed));
+
+struct character_msg {
+ int x;
+ int y;
+ char c;
+ unsigned char style;
+} __attribute__((packed));
+
+struct scroll_msg {
+ int lines;
+} __attribute__((packed));
+
+struct resolution_msg {
+ int cols;
+ int rows;
+} __attribute__((packed));
+
+
+struct cons_msg {
+ unsigned char op;
+ union {
+ struct cursor_msg cursor;
+ struct character_msg character;
+ struct scroll_msg scroll;
+ struct resolution_msg resolution;
+ };
+} __attribute__((packed));
+
+
+
+
+static int handle_char_set(struct character_msg * msg) {
+ char c = msg->c;
+
+ if (debug_enable) {
+ fprintf(stderr, "setting char (%c), at (x=%d, y=%d)\n", c, msg->x, msg->y);
+ }
+
+ if (c == 0) {
+ c = ' ';
+ }
+
+
+ if ((c < ' ') || (c >= 127)) {
+ fprintf(stderr, "unexpected control character %d\n", c);
+ c = '?';
+ }
+
+ if (use_curses) {
+ /* clip whatever falls outside the visible area to avoid errors */
+ if ((msg->x < 0) || (msg->y < 0) ||
+ (msg->x > console.win->_maxx) ||
+ (msg->y > console.win->_maxy)) {
+
+ fprintf(stderr, "Char out of range (x=%d,y=%d) MAX:(x=%d,y=%d)\n",
+ msg->x, msg->y, console.win->_maxx, console.win->_maxy);
+ return -1;
+ }
+
+ if ((msg->x == console.win->_maxx) &&
+ (msg->y == console.win->_maxy)) {
+ return -1;
+ }
+
+ mvwaddch(console.win, msg->y, msg->x, c);
+
+ } else {
+ //stdout text display
+ while (console.y < msg->y) {
+ printf("\n");
+ console.x = 0;
+ console.y++;
+ }
+
+ while (console.x < msg->x) {
+ printf(" ");
+ console.x++;
+ }
+
+ printf("%c", c);
+ console.x++;
+
+ assert(console.x <= console.cols);
+
+ if (console.x == console.cols) {
+ printf("\n");
+ console.x = 0;
+ console.y++;
+ }
+ }
+
+ return 0;
+}
+
+int handle_curs_set(struct cursor_msg * msg) {
+ if (debug_enable) {
+ fprintf(stderr, "cursor set: (x=%d, y=%d)\n", msg->x, msg->y);
+ }
+
+ if (use_curses) {
+ /* nothing to do now, cursor is set before update to make sure it isn't
+ * affected by character_set
+ */
+
+ console.x = msg->x;
+ console.y = msg->y;
+ }
+
+ return 0;
+}
+
+
+int handle_scroll(struct scroll_msg * msg) {
+ int lines = msg->lines;
+
+ if (debug_enable) {
+ fprintf(stderr, "scroll: %d lines\n", lines);
+ }
+
+
+ assert(lines >= 0);
+
+ if (use_curses) {
+ while (lines > 0) {
+ scroll(console.win);
+ lines--;
+ }
+ } else {
+ console.y -= lines;
+ }
+}
+
+int handle_text_resolution(struct resolution_msg * msg) {
+ if (debug_enable) {
+ fprintf(stderr, "text resolution: rows=%d, cols=%d\n", msg->rows, msg->cols);
+ }
+
+
+ console.rows = msg->rows;
+ console.cols = msg->cols;
+
+ return 0;
+}
+
+int handle_update( void ) {
+ if (debug_enable) {
+ fprintf(stderr, "update\n");
+ }
+
+ if (use_curses) {
+
+ if ( (console.x >= 0) && (console.y >= 0) &&
+ (console.x <= console.win->_maxx) &&
+ (console.y <= console.win->_maxy) ) {
+
+ wmove(console.win, console.y, console.x);
+
+ }
+
+ wrefresh(console.win);
+ } else {
+ fflush(stdout);
+ }
+}
+
+
+int handle_console_msg(int cons_fd) {
+ int ret = 0;
+ struct cons_msg msg;
+
+ ret = read(cons_fd, &msg, sizeof(struct cons_msg));
+
+ switch (msg.op) {
+ case CONSOLE_CURS_SET:
+ // printf("Console cursor set (x=%d, y=%d)\n", msg.cursor.x, msg.cursor.y);
+ handle_curs_set(&(msg.cursor));
+ break;
+ case CONSOLE_CHAR_SET:
+ handle_char_set(&(msg.character));
+ /* printf("Console character set (x=%d, y=%d, c=%c, style=%c)\n",
+ msg.character.x, msg.character.y, msg.character.c, msg.character.style);*/
+ break;
+ case CONSOLE_SCROLL:
+ // printf("Console scroll (lines=%d)\n", msg.scroll.lines);
+ handle_scroll(&(msg.scroll));
+ break;
+ case CONSOLE_UPDATE:
+ // printf("Console update\n");
+ handle_update();
+ break;
+ case CONSOLE_RESOLUTION:
+ handle_text_resolution(&(msg.resolution));
+ break;
+ default:
+ printf("Invalid console message operation (%d)\n", msg.op);
+ break;
+ }
+
+ return 0;
+}
+
+
+int send_key(int cons_fd, char scan_code) {
+
+ return 0;
+}
+
+
+
+void handle_exit(void) {
+ fprintf(stderr, "Exiting from console terminal\n");
+
+ if (use_curses) {
+ endwin();
+ }
+
+ // tcsetattr(STDIN_FILENO, TCSANOW, &console.termios_old);
+
+ // ioctl(STDIN_FILENO, KDSKBMODE, K_XLATE);
+}
+
+
+#define NO_KEY { 0, 0 }
+
+struct key_code {
+ unsigned char scan_code;
+ unsigned char capital;
+};
+
+static const struct key_code ascii_to_key_code[] = { // ASCII Value Serves as Index
+ NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x00 - 0x03
+ NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x04 - 0x07
+ { 0x0E, 0 }, { 0x0F, 0 }, { 0x1C, 0 }, NO_KEY, // 0x08 - 0x0B
+ NO_KEY, { 0x1C, 0 }, NO_KEY, NO_KEY, // 0x0C - 0x0F
+ NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x10 - 0x13
+ NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x14 - 0x17
+ NO_KEY, NO_KEY, NO_KEY, { 0x01, 0 }, // 0x18 - 0x1B
+ NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x1C - 0x1F
+ { 0x39, 0 }, { 0x02, 1 }, { 0x28, 1 }, { 0x04, 1 }, // 0x20 - 0x23
+ { 0x05, 1 }, { 0x06, 1 }, { 0x08, 1 }, { 0x28, 0 }, // 0x24 - 0x27
+ { 0x0A, 1 }, { 0x0B, 1 }, { 0x09, 1 }, { 0x0D, 1 }, // 0x28 - 0x2B
+ { 0x33, 0 }, { 0x0C, 0 }, { 0x34, 0 }, { 0x35, 0 }, // 0x2C - 0x2F
+ { 0x0B, 0 }, { 0x02, 0 }, { 0x03, 0 }, { 0x04, 0 }, // 0x30 - 0x33
+ { 0x05, 0 }, { 0x06, 0 }, { 0x07, 0 }, { 0x08, 0 }, // 0x34 - 0x37
+ { 0x09, 0 }, { 0x0A, 0 }, { 0x27, 1 }, { 0x27, 0 }, // 0x38 - 0x3B
+ { 0x33, 1 }, { 0x0D, 0 }, { 0x34, 1 }, { 0x35, 1 }, // 0x3C - 0x3F
+ { 0x03, 1 }, { 0x1E, 1 }, { 0x30, 1 }, { 0x2E, 1 }, // 0x40 - 0x43
+ { 0x20, 1 }, { 0x12, 1 }, { 0x21, 1 }, { 0x22, 1 }, // 0x44 - 0x47
+ { 0x23, 1 }, { 0x17, 1 }, { 0x24, 1 }, { 0x25, 1 }, // 0x48 - 0x4B
+ { 0x26, 1 }, { 0x32, 1 }, { 0x31, 1 }, { 0x18, 1 }, // 0x4C - 0x4F
+ { 0x19, 1 }, { 0x10, 1 }, { 0x13, 1 }, { 0x1F, 1 }, // 0x50 - 0x53
+ { 0x14, 1 }, { 0x16, 1 }, { 0x2F, 1 }, { 0x11, 1 }, // 0x54 - 0x57
+ { 0x2D, 1 }, { 0x15, 1 }, { 0x2C, 1 }, { 0x1A, 0 }, // 0x58 - 0x5B
+ { 0x2B, 0 }, { 0x1B, 0 }, { 0x07, 1 }, { 0x0C, 1 }, // 0x5C - 0x5F
+ { 0x29, 0 }, { 0x1E, 0 }, { 0x30, 0 }, { 0x2E, 0 }, // 0x60 - 0x63
+ { 0x20, 0 }, { 0x12, 0 }, { 0x21, 0 }, { 0x22, 0 }, // 0x64 - 0x67
+ { 0x23, 0 }, { 0x17, 0 }, { 0x24, 0 }, { 0x25, 0 }, // 0x68 - 0x6B
+ { 0x26, 0 }, { 0x32, 0 }, { 0x31, 0 }, { 0x18, 0 }, // 0x6C - 0x6F
+ { 0x19, 0 }, { 0x10, 0 }, { 0x13, 0 }, { 0x1F, 0 }, // 0x70 - 0x73
+ { 0x14, 0 }, { 0x16, 0 }, { 0x2F, 0 }, { 0x11, 0 }, // 0x74 - 0x77
+ { 0x2D, 0 }, { 0x15, 0 }, { 0x2C, 0 }, { 0x1A, 1 }, // 0x78 - 0x7B
+ { 0x2B, 1 }, { 0x1B, 1 }, { 0x29, 1 }, { 0x0E, 0 } // 0x7C - 0x7F
+};
+
+
+
+#define writeit(fd,c) do { fprintf(stderr,"scancode 0x%x\n",(c)); if (write((fd),&(c),1)!=1) { return -1; } } while (0)
+
+int send_char_to_palacios_as_scancodes(int fd, unsigned char c)
+{
+ unsigned char sc;
+
+ fprintf(stderr,"key '%c'\n",c);
+
+ if (c<0x80) {
+ struct key_code k = ascii_to_key_code[c];
+
+ if (k.scan_code==0 && k.capital==0) {
+ fprintf(stderr,"Cannot send key '%c' to palacios as it maps to no scancode\n",c);
+ } else {
+ if (k.capital) {
+ //shift down
+ sc = 0x2a ; // left shift down
+ writeit(fd,sc);
+ }
+
+
+ sc = k.scan_code;
+
+ writeit(fd,sc); // key down
+
+ sc |= 0x80; // key up
+
+ writeit(fd,sc);
+
+ if (k.capital) {
+ sc = 0x2a | 0x80;
+ writeit(fd,sc);
+ }
+ }
+
+ } else {
+
+
+ fprintf(stderr,"Cannot send key '%c' to palacios because it is >=0x80\n",c);
+
+/* switch (key) { */
+/* case 0xffe1: //left shift */
+/* scancode = 0x2a; */
+/* break; */
+
+/* case 0xffe2: //right shift */
+/* scancode = 0x36; */
+/* break; */
+
+/* case 0xffe3: //left ctrl */
+/* case 0xffe4: //right ctrl */
+/* scancode = 0x1d; // translated as left ctrl */
+/* break; */
+
+/* case 0xffe7: //left meta */
+/* case 0xffe8: //right meta */
+/* case 0xffe9: //left alt */
+/* case 0xffea: //right alt */
+/* scancode = 0x38; // translated as a left alt */
+/* break; */
+
+/* case 0xff08: // backspace */
+/* scancode = 0x0e; */
+/* break; */
+
+/* case 0xff09: // tab */
+/* scancode = 0x0f; */
+/* break; */
+
+/* case 0xff0d: // return */
+/* scancode = 0x1c; */
+/* break; */
+
+/* case 0xff1b: // escape */
+/* scancode = 0x01; */
+/* break; */
+
+/* case 0xff63: // insert */
+/* scancode = 0x52; */
+/* break; */
+
+/* case 0xffff: // delete */
+/* scancode = 0x53; */
+/* break; */
+
+/* case 0xff50: // home */
+/* scancode = 0x47; */
+/* break; */
+
+/* case 0xff57: // end */
+/* scancode = 0x4f; */
+/* break; */
+
+/* case 0xff55: // pageup */
+/* scancode = 0x49; */
+/* break; */
+
+/* case 0xff56: // pagedown */
+/* scancode = 0x51; */
+/* break; */
+
+/* case 0xff51: // left */
+/* scancode = 0x4b; */
+/* break; */
+
+/* case 0xff52: // up */
+/* scancode = 0x48; */
+/* break; */
+
+/* case 0xff53: // right */
+/* scancode = 0x4d; */
+/* break; */
+
+/* case 0xff54: // down */
+/* scancode = 0x50; */
+/* break; */
+
+/* case 0xffbe: // f1 */
+/* scancode = 0x3b; */
+/* break; */
+/* case 0xffbf: // f2 */
+/* scancode = 0x3c; */
+/* break; */
+/* case 0xffc0: // f3 */
+/* scancode = 0x3d; */
+/* break; */
+/* case 0xffc1: // f4 */
+/* scancode = 0x3e; */
+/* break; */
+/* case 0xffc2: // f5 */
+/* scancode = 0x3f; */
+/* break; */
+/* case 0xffc3: // f6 */
+/* scancode = 0x40; */
+/* break; */
+/* case 0xffc4: // f7 */
+/* scancode = 0x41; */
+/* break; */
+/* case 0xffc5: // f8 */
+/* scancode = 0x42; */
+/* break; */
+/* case 0xffc6: // f9 */
+/* scancode = 0x43; */
+/* break; */
+/* case 0xffc7: // f10 */
+/* scancode = 0x44; */
+/* break; */
+/* case 0xffc8: // f11 */
+/* scancode = 0x57; */
+/* break; */
+/* case 0xffc9: // f12 */
+/* scancode = 0x58; */
+/* break; */
+
+
+/* default: */
+/* scancode = 0; */
+/* fprintf(stderr,"Ignoring key 0x%x (down=%d)\n", key, down); */
+/* } */
+/* } */
+
+/* if (scancode==0) { */
+/* return 0; */
+/* } */
+
+
+/* return scancode; */
+
+ }
+ return 0;
+}
+
+int main(int argc, char* argv[]) {
+ int vm_fd;
+ int cons_fd;
+ char * vm_dev = NULL;
+ struct termios termios;
+
+ use_curses = 1;
+
+ if (argc < 2) {
+ printf("Usage: ./v3_cons <vm_device>\n");
+ return -1;
+ }
+
+ vm_dev = argv[1];
+
+
+
+ vm_fd = open(vm_dev, O_RDONLY);
+
+ if (vm_fd == -1) {
+ printf("Error opening VM device: %s\n", vm_dev);
+ return -1;
+ }
+
+ cons_fd = ioctl(vm_fd, V3_VM_CONSOLE_CONNECT, NULL);
+
+ /* Close the file descriptor. */
+ close(vm_fd);
+
+ if (cons_fd < 0) {
+ printf("Error opening stream Console\n");
+ return -1;
+ }
+
+ tcgetattr(STDIN_FILENO, &console.termios_old);
+ atexit(handle_exit);
+
+ console.x = 0;
+ console.y = 0;
+
+
+ if (use_curses) {
+ gettmode();
+ console.win = initscr();
+
+ if (console.win == NULL) {
+ fprintf(stderr, "Error initialization curses screen\n");
+ exit(-1);
+ }
+
+ scrollok(console.win, 1);
+ }
+
+ /*
+ termios = console.termios_old;
+ termios.c_iflag &= ~(BRKINT | ICRNL | IGNBRK | IGNCR | IGNPAR);
+ termios.c_iflag &= ~(INLCR | INPCK | ISTRIP | IXOFF | IXON | PARMRK);
+ //termios.c_iflag &= ~(ICRNL | INLCR );
+
+ // termios.c_iflag |= SCANCODES;
+ // termios.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
+ //termios.c_lflag &= ~(ICANON | IEXTEN | ISIG | NOFLSH);
+ termios.c_lflag &= ~(ICANON | ECHO);
+
+ termios.c_cc[VMIN] = 1;
+ termios.c_cc[VTIME] = 0;
+
+ tcflush(STDIN_FILENO, TCIFLUSH);
+ tcsetattr(STDIN_FILENO, TCSANOW, &termios);
+ */
+
+ raw();
+ cbreak();
+ noecho();
+ keypad(console.win, TRUE);
+
+ //ioctl(STDIN_FILENO, KDSKBMODE, K_RAW);
+
+ while (1) {
+ int ret;
+ int bytes_read = 0;
+ fd_set rset;
+
+ FD_ZERO(&rset);
+ FD_SET(cons_fd, &rset);
+ FD_SET(STDIN_FILENO, &rset);
+
+ ret = select(cons_fd + 1, &rset, NULL, NULL, NULL);
+
+ // printf("Returned from select...\n");
+
+ if (ret == 0) {
+ continue;
+ } else if (ret == -1) {
+ perror("Select returned error...\n");
+ return -1;
+ }
+
+ if (FD_ISSET(cons_fd, &rset)) {
+ if (handle_console_msg(cons_fd) == -1) {
+ printf("Console Error\n");
+ return -1;
+ }
+ }
+
+ if (FD_ISSET(STDIN_FILENO, &rset)) {
+ unsigned char key = getch();
+
+ if (key == '\\') { // ESC
+ break;
+ } else if (key == '`') {
+ unsigned char sc = 0x44; // F10
+ writeit(cons_fd,sc);
+ sc |= 0x80;
+ writeit(cons_fd,sc);
+ }else {
+ if (send_char_to_palacios_as_scancodes(cons_fd,key)) {
+ fprintf(stderr, "Error sendign key to console\n");
+ return -1;
+ }
+ }
+
+ }
+ }
+
+ close(cons_fd);
+
+ return 0;
+}
+
+
