3 * Taken from Palacios console display in MINIX ( by Erik Van der Kouwe )
5 * (c) Peter Dinda, 2011 (Scan code encoding)
11 #include <sys/ioctl.h>
20 #include <linux/keyboard.h>
24 static int in_color = 0;
25 static int color8 = 0;
26 #define TRANS_STYLE(x) ( !color8 ? (x) : ((x)&0x7)|(((x)&0x70)>>1))
28 static int use_curses = 0;
29 static int debug_enable = 0;
32 typedef enum { CONSOLE_CURS_SET = 1,
36 CONSOLE_RESOLUTION = 5 } console_op_t;
46 struct termios termios_old;
47 unsigned char old_kbd_mode;
54 } __attribute__((packed));
56 struct character_msg {
61 } __attribute__((packed));
65 } __attribute__((packed));
67 struct resolution_msg {
70 } __attribute__((packed));
76 struct cursor_msg cursor;
77 struct character_msg character;
78 struct scroll_msg scroll;
79 struct resolution_msg resolution;
81 } __attribute__((packed));
86 static int handle_char_set(struct character_msg * msg) {
90 fprintf(stderr, "setting char (%c), at (x=%d, y=%d)\n", c, msg->x, msg->y);
98 if ((c < ' ') || (c >= 127)) {
100 fprintf(stderr, "unexpected control character %d\n", c);
106 /* clip whatever falls outside the visible area to avoid errors */
107 if ((msg->x < 0) || (msg->y < 0) ||
108 (msg->x > console.win->_maxx) ||
109 (msg->y > console.win->_maxy)) {
112 fprintf(stderr, "Char out of range (x=%d,y=%d) MAX:(x=%d,y=%d)\n",
113 msg->x, msg->y, console.win->_maxx, console.win->_maxy);
119 if ((msg->x == console.win->_maxx) &&
120 (msg->y == console.win->_maxy)) {
124 if (in_color) {wattron(console.win, COLOR_PAIR(TRANS_STYLE(msg->style)));}
125 mvwaddch(console.win, msg->y, msg->x, c);
126 if (in_color) {wattroff(console.win, COLOR_PAIR(TRANS_STYLE(msg->style)));}
129 //stdout text display
130 while (console.y < msg->y) {
136 while (console.x < msg->x) {
144 assert(console.x <= console.cols);
146 if (console.x == console.cols) {
156 int handle_curs_set(struct cursor_msg * msg) {
158 fprintf(stderr, "cursor set: (x=%d, y=%d)\n", msg->x, msg->y);
162 /* nothing to do now, cursor is set before update to make sure it isn't
163 * affected by character_set
174 int handle_scroll(struct scroll_msg * msg) {
175 int lines = msg->lines;
178 fprintf(stderr, "scroll: %d lines\n", lines);
194 int handle_text_resolution(struct resolution_msg * msg) {
196 fprintf(stderr, "text resolution: rows=%d, cols=%d\n", msg->rows, msg->cols);
200 console.rows = msg->rows;
201 console.cols = msg->cols;
206 int handle_update( void ) {
208 fprintf(stderr, "update\n");
213 if ( (console.x >= 0) && (console.y >= 0) &&
214 (console.x <= console.win->_maxx) &&
215 (console.y <= console.win->_maxy) ) {
217 wmove(console.win, console.y, console.x);
221 wrefresh(console.win);
228 int handle_console_msg(int cons_fd) {
232 ret = read(cons_fd, &msg, sizeof(struct cons_msg));
235 case CONSOLE_CURS_SET:
236 // printf("Console cursor set (x=%d, y=%d)\n", msg.cursor.x, msg.cursor.y);
237 handle_curs_set(&(msg.cursor));
239 case CONSOLE_CHAR_SET:
240 handle_char_set(&(msg.character));
241 /* printf("Console character set (x=%d, y=%d, c=%c, style=%c)\n",
242 msg.character.x, msg.character.y, msg.character.c, msg.character.style);*/
245 // printf("Console scroll (lines=%d)\n", msg.scroll.lines);
246 handle_scroll(&(msg.scroll));
249 // printf("Console update\n");
252 case CONSOLE_RESOLUTION:
253 handle_text_resolution(&(msg.resolution));
256 printf("Invalid console message operation (%d)\n", msg.op);
264 int send_key(int cons_fd, char scan_code) {
271 void handle_exit(void) {
272 if ( debug_enable ) {
273 fprintf(stderr, "Exiting from console terminal\n");
280 // tcsetattr(STDIN_FILENO, TCSANOW, &console.termios_old);
282 // ioctl(STDIN_FILENO, KDSKBMODE, K_XLATE);
286 #define NO_KEY { 0, 0 }
289 unsigned char scan_code;
290 unsigned char capital;
293 static const struct key_code ascii_to_key_code[] = { // ASCII Value Serves as Index
294 NO_KEY, NO_KEY, {0x50, 0}, {0x48, 0}, // 0x00 - 0x03
295 {0x4B, 0}, {0x4D, 0}, NO_KEY, { 0x0E, 0 }, // 0x04 - 0x07
296 { 0x0E, 0 }, { 0x0F, 0 }, { 0x1C, 0 }, NO_KEY, // 0x08 - 0x0B
297 NO_KEY, { 0x1C, 0 }, NO_KEY, NO_KEY, // 0x0C - 0x0F
298 NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x10 - 0x13
299 NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x14 - 0x17
300 NO_KEY, NO_KEY, NO_KEY, { 0x01, 0 }, // 0x18 - 0x1B
301 NO_KEY, NO_KEY, NO_KEY, NO_KEY, // 0x1C - 0x1F
302 { 0x39, 0 }, { 0x02, 1 }, { 0x28, 1 }, { 0x04, 1 }, // 0x20 - 0x23
303 { 0x05, 1 }, { 0x06, 1 }, { 0x08, 1 }, { 0x28, 0 }, // 0x24 - 0x27
304 { 0x0A, 1 }, { 0x0B, 1 }, { 0x09, 1 }, { 0x0D, 1 }, // 0x28 - 0x2B
305 { 0x33, 0 }, { 0x0C, 0 }, { 0x34, 0 }, { 0x35, 0 }, // 0x2C - 0x2F
306 { 0x0B, 0 }, { 0x02, 0 }, { 0x03, 0 }, { 0x04, 0 }, // 0x30 - 0x33
307 { 0x05, 0 }, { 0x06, 0 }, { 0x07, 0 }, { 0x08, 0 }, // 0x34 - 0x37
308 { 0x09, 0 }, { 0x0A, 0 }, { 0x27, 1 }, { 0x27, 0 }, // 0x38 - 0x3B
309 { 0x33, 1 }, { 0x0D, 0 }, { 0x34, 1 }, { 0x35, 1 }, // 0x3C - 0x3F
310 { 0x03, 1 }, { 0x1E, 1 }, { 0x30, 1 }, { 0x2E, 1 }, // 0x40 - 0x43
311 { 0x20, 1 }, { 0x12, 1 }, { 0x21, 1 }, { 0x22, 1 }, // 0x44 - 0x47
312 { 0x23, 1 }, { 0x17, 1 }, { 0x24, 1 }, { 0x25, 1 }, // 0x48 - 0x4B
313 { 0x26, 1 }, { 0x32, 1 }, { 0x31, 1 }, { 0x18, 1 }, // 0x4C - 0x4F
314 { 0x19, 1 }, { 0x10, 1 }, { 0x13, 1 }, { 0x1F, 1 }, // 0x50 - 0x53
315 { 0x14, 1 }, { 0x16, 1 }, { 0x2F, 1 }, { 0x11, 1 }, // 0x54 - 0x57
316 { 0x2D, 1 }, { 0x15, 1 }, { 0x2C, 1 }, { 0x1A, 0 }, // 0x58 - 0x5B
317 { 0x2B, 0 }, { 0x1B, 0 }, { 0x07, 1 }, { 0x0C, 1 }, // 0x5C - 0x5F
318 { 0x29, 0 }, { 0x1E, 0 }, { 0x30, 0 }, { 0x2E, 0 }, // 0x60 - 0x63
319 { 0x20, 0 }, { 0x12, 0 }, { 0x21, 0 }, { 0x22, 0 }, // 0x64 - 0x67
320 { 0x23, 0 }, { 0x17, 0 }, { 0x24, 0 }, { 0x25, 0 }, // 0x68 - 0x6B
321 { 0x26, 0 }, { 0x32, 0 }, { 0x31, 0 }, { 0x18, 0 }, // 0x6C - 0x6F
322 { 0x19, 0 }, { 0x10, 0 }, { 0x13, 0 }, { 0x1F, 0 }, // 0x70 - 0x73
323 { 0x14, 0 }, { 0x16, 0 }, { 0x2F, 0 }, { 0x11, 0 }, // 0x74 - 0x77
324 { 0x2D, 0 }, { 0x15, 0 }, { 0x2C, 0 }, { 0x1A, 1 }, // 0x78 - 0x7B
325 { 0x2B, 1 }, { 0x1B, 1 }, { 0x29, 1 }, { 0x0E, 0 } // 0x7C - 0x7F
330 #define writeit(fd,c) do { if (debug_enable) { fprintf(stderr,"scancode 0x%x\n",(c));} if (write((fd),&(c),1)!=1) { return -1; } } while (0)
332 int send_char_to_palacios_as_scancodes(int fd, unsigned char c)
337 fprintf(stderr,"key '%c'\n",c);
341 struct key_code k = ascii_to_key_code[c];
343 if (k.scan_code==0 && k.capital==0) {
345 fprintf(stderr,"Cannot send key '%c' to palacios as it maps to no scancode\n",c);
350 sc = 0x2a ; // left shift down
357 writeit(fd,sc); // key down
359 sc |= 0x80; // key up
373 fprintf(stderr,"Cannot send key '%c' to palacios because it is >=0x80\n",c);
382 #define MIN_TTY_COLS 80
383 #define MIN_TTY_ROWS 25
384 int check_terminal_size (void)
386 unsigned short n_cols = 0;
387 unsigned short n_rows = 0;
388 struct winsize winsz;
390 ioctl (fileno(stdin), TIOCGWINSZ, &winsz);
391 n_cols = winsz.ws_col;
392 n_rows = winsz.ws_row;
394 if (n_cols < MIN_TTY_COLS || n_rows < MIN_TTY_ROWS) {
395 printf ("Your window is not large enough.\n");
396 printf ("It must be at least %dx%d, but yours is %dx%d\n",
397 MIN_TTY_COLS, MIN_TTY_ROWS, n_cols, n_rows);
413 fprintf(stderr,"No color support\n");
421 if (can_change_color() && COLORS>=16 && COLOR_PAIRS>=256) {
422 fprintf(stderr, "Modifyable color support with enough colors available\n");
423 // initialize first 16 colors to be the PC colors
424 // then create all the pairings
426 unsigned short red, green, blue, intens;
432 init_color(i, 500*(red+intens), 500*(blue+intens), 500*(green+intens));
434 for (i=0;i<256;i++) {
435 init_pair(i, i & 0xf, (i >> 4) & 0xf);
441 if (COLORS!=8 || COLOR_PAIRS<64) {
442 fprintf(stderr,"Insufficient number of fixed colors (%d) or color pairs (%d)\n",COLORS,COLOR_PAIRS);
447 // We have only the low-intensity colors available, so
449 fprintf(stderr,"Only 8 color standard palette available\n");
451 // VGA color order: black, blue, green, cyan, red, magenta, brown, gray
452 // curses color order: black, red, green, yellow, blue, magenta, cyan, white
453 short map[] = { 0, 4, 2, 6, 1, 5, 3, 7 };
454 unsigned short fg, bg;
455 // discard intensity bit
458 init_pair(i, map[fg], map[bg]);
467 int main(int argc, char* argv[]) {
470 char * vm_dev = NULL;
471 struct termios termios;
476 printf("usage: v3_cons_sc <vm_device>\n");
480 /* Check for minimum Terminal size at start */
481 if (0 != check_terminal_size()) {
482 printf ("Error: terminal too small!\n");
488 vm_fd = open(vm_dev, O_RDONLY);
491 printf("Error opening VM device: %s\n", vm_dev);
495 cons_fd = ioctl(vm_fd, V3_VM_CONSOLE_CONNECT, NULL);
497 /* Close the file descriptor. */
501 printf("Error opening stream Console\n");
505 tcgetattr(STDIN_FILENO, &console.termios_old);
514 console.win = initscr();
516 if (console.win == NULL) {
517 fprintf(stderr, "Error initialization curses screen\n");
521 scrollok(console.win, 1);
529 termios = console.termios_old;
530 termios.c_iflag &= ~(BRKINT | ICRNL | IGNBRK | IGNCR | IGNPAR);
531 termios.c_iflag &= ~(INLCR | INPCK | ISTRIP | IXOFF | IXON | PARMRK);
532 //termios.c_iflag &= ~(ICRNL | INLCR );
534 // termios.c_iflag |= SCANCODES;
535 // termios.c_lflag &= ~(ECHO | ECHOE | ECHOK | ECHONL);
536 //termios.c_lflag &= ~(ICANON | IEXTEN | ISIG | NOFLSH);
537 termios.c_lflag &= ~(ICANON | ECHO);
539 termios.c_cc[VMIN] = 1;
540 termios.c_cc[VTIME] = 0;
542 tcflush(STDIN_FILENO, TCIFLUSH);
543 tcsetattr(STDIN_FILENO, TCSANOW, &termios);
549 keypad(console.win, TRUE);
551 //ioctl(STDIN_FILENO, KDSKBMODE, K_RAW);
559 FD_SET(cons_fd, &rset);
560 FD_SET(STDIN_FILENO, &rset);
562 ret = select(cons_fd + 1, &rset, NULL, NULL, NULL);
564 // printf("Returned from select...\n");
568 } else if (ret == -1) {
569 perror("Select returned error...\n");
573 if (FD_ISSET(cons_fd, &rset)) {
574 if (handle_console_msg(cons_fd) == -1) {
575 printf("Console Error\n");
580 if (FD_ISSET(STDIN_FILENO, &rset)) {
581 unsigned char key = getch();
583 if (key == '\\') { // ESC
585 } else if (key == '`') {
586 unsigned char sc = 0x44; // F10
590 } else if (key == '~') { // CTRL-C
592 sc = 0x1d; // left ctrl down
596 sc = 0x2e | 0x80; // c up
598 sc = 0x1d | 0x80; // left ctrl up
601 if (send_char_to_palacios_as_scancodes(cons_fd,key)) {
602 printf("Error sending key to console\n");
612 printf("Console terminated\n");