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comparison io.c @ 1028:56b1748a8473

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Initial stab at Saturn keyboard support
author Michael Pavone <pavone@retrodev.com>
date Wed, 11 May 2016 01:15:54 -0700
parents 7267bc1ab547
children 284d905ca582
comparison
equal deleted inserted replaced
1027:276cd582b728 1028:56b1748a8473
256 } 256 }
257 } 257 }
258 258
259 void store_key_event(uint16_t code) 259 void store_key_event(uint16_t code)
260 { 260 {
261 if (keyboard_port) { 261 if (keyboard_port && keyboard_port->device.keyboard.write_pos != keyboard_port->device.keyboard.read_pos) {
262 //there's room in the buffer, record this event
263 keyboard_port->device.keyboard.events[keyboard_port->device.keyboard.write_pos] = code;
264 if (keyboard_port->device.keyboard.read_pos == 0xFF) {
265 //ring buffer was empty, update read_pos to indicate there is now data
266 keyboard_port->device.keyboard.read_pos = keyboard_port->device.keyboard.write_pos;
267 }
262 keyboard_port->device.keyboard.write_pos = (keyboard_port->device.keyboard.write_pos + 1) & 7; 268 keyboard_port->device.keyboard.write_pos = (keyboard_port->device.keyboard.write_pos + 1) & 7;
263 if (keyboard_port->device.keyboard.write_pos == keyboard_port->device.keyboard.read_pos) { 269 }
264 //we've wrapped around to the read position, drop this event 270 }
265 keyboard_port->device.keyboard.write_pos = (keyboard_port->device.keyboard.write_pos - 1) & 7; 271
266 return; 272 void handle_keydown(int keycode, uint8_t scancode)
267 }
268 keyboard_port->device.keyboard.events[keyboard_port->device.keyboard.write_pos] = code;
269 }
270 }
271
272 void handle_keydown(int keycode, char scancode)
273 { 273 {
274 int bucket = keycode >> 15 & 0xFFFF; 274 int bucket = keycode >> 15 & 0xFFFF;
275 if (!bindings[bucket]) { 275 if (!bindings[bucket]) {
276 return; 276 return;
277 } 277 }
402 } 402 }
403 break; 403 break;
404 } 404 }
405 } 405 }
406 406
407 void handle_keyup(int keycode, char scancode) 407 void handle_keyup(int keycode, uint8_t scancode)
408 { 408 {
409 int bucket = keycode >> 15 & 0xFFFF; 409 int bucket = keycode >> 15 & 0xFFFF;
410 if (!bindings[bucket]) { 410 if (!bindings[bucket]) {
411 return; 411 return;
412 } 412 }
679 port->device.mouse.cur_y = 0; 679 port->device.mouse.cur_y = 0;
680 port->device.mouse.latched_x = 0; 680 port->device.mouse.latched_x = 0;
681 port->device.mouse.latched_y = 0; 681 port->device.mouse.latched_y = 0;
682 port->device.mouse.ready_cycle = CYCLE_NEVER; 682 port->device.mouse.ready_cycle = CYCLE_NEVER;
683 port->device.mouse.tr_counter = 0; 683 port->device.mouse.tr_counter = 0;
684 } else if(!strcmp(device_type, "saturn keyboard")) {
685 port->device_type = IO_SATURN_KEYBOARD;
686 port->device.keyboard.read_pos = 0xFF;
687 port->device.keyboard.write_pos = 0;
684 } else if(!strcmp(device_type, "sega_parallel")) { 688 } else if(!strcmp(device_type, "sega_parallel")) {
685 port->device_type = IO_SEGA_PARALLEL; 689 port->device_type = IO_SEGA_PARALLEL;
686 port->device.stream.data_fd = -1; 690 port->device.stream.data_fd = -1;
687 port->device.stream.listen_fd = -1; 691 port->device.stream.listen_fd = -1;
688 } else if(!strcmp(device_type, "generic")) { 692 } else if(!strcmp(device_type, "generic")) {
1279 int delay_index = port->device.mouse.tr_counter >= sizeof(mouse_delays) ? sizeof(mouse_delays)-1 : port->device.mouse.tr_counter; 1283 int delay_index = port->device.mouse.tr_counter >= sizeof(mouse_delays) ? sizeof(mouse_delays)-1 : port->device.mouse.tr_counter;
1280 port->device.mouse.ready_cycle = current_cycle + mouse_delays[delay_index]; 1284 port->device.mouse.ready_cycle = current_cycle + mouse_delays[delay_index];
1281 } 1285 }
1282 } 1286 }
1283 break; 1287 break;
1288 case IO_SATURN_KEYBOARD:
1289 if (output & TH) {
1290 //request is over
1291 if (port->device.keyboard.tr_counter >= 10 && port->device.keyboard.read_pos != 0xFF) {
1292 //remove scan code from buffer
1293 port->device.keyboard.read_pos++;
1294 port->device.keyboard.read_pos &= 7;
1295 if (port->device.keyboard.read_pos == port->device.keyboard.write_pos) {
1296 port->device.keyboard.read_pos = 0xFF;
1297 }
1298 }
1299 port->device.keyboard.tr_counter = 0;
1300 } else {
1301 if ((output & TR) != (old_output & TR)) {
1302 port->device.keyboard.tr_counter++;
1303 }
1304 }
1305 break;
1284 #ifndef _WIN32 1306 #ifndef _WIN32
1285 case IO_GENERIC: 1307 case IO_GENERIC:
1286 wait_for_connection(port); 1308 wait_for_connection(port);
1287 port->input[IO_STATE] = IO_WRITE_PENDING; 1309 port->input[IO_STATE] = IO_WRITE_PENDING;
1288 service_socket(port); 1310 service_socket(port);
1395 } 1417 }
1396 input |= ((port->device.mouse.tr_counter & 1) == 0) << 4; 1418 input |= ((port->device.mouse.tr_counter & 1) == 0) << 4;
1397 } 1419 }
1398 break; 1420 break;
1399 } 1421 }
1422 case IO_SATURN_KEYBOARD:
1423 {
1424 if (th) {
1425 input = 0x11;
1426 } else {
1427 uint8_t tr = output & TR;
1428 uint16_t code = port->device.keyboard.read_pos == 0xFF ? 0
1429 : port->device.keyboard.events[port->device.keyboard.read_pos];
1430 switch (port->device.keyboard.tr_counter)
1431 {
1432 case 0:
1433 input = 1;
1434 break;
1435 case 1:
1436 //Saturn peripheral ID
1437 input = 3;
1438 break;
1439 case 2:
1440 //data size
1441 input = 4;
1442 break;
1443 case 3:
1444 //d-pad
1445 //TODO: set these based on keyboard state
1446 input = 0xF;
1447 break;
1448 case 4:
1449 //Start ABC
1450 //TODO: set these based on keyboard state
1451 input = 0xF;
1452 break;
1453 case 5:
1454 //R XYZ
1455 //TODO: set these based on keyboard state
1456 input = 0xF;
1457 break;
1458 case 6:
1459 //L and KBID
1460 //TODO: set L based on keyboard state
1461 input = 0x8;
1462 break;
1463 case 7:
1464 //Capslock, Numlock, Scrolllock
1465 //TODO: set these based on keyboard state
1466 input = 0;
1467 break;
1468 case 8:
1469 input = 6;
1470 if (code & 0x100) {
1471 //break
1472 input |= 1;
1473 } else if (code) {
1474 input |= 8;
1475 }
1476 break;
1477 case 9:
1478 input = code >> 4 & 0xF;
1479 break;
1480 case 10:
1481 input = code & 0xF;
1482 break;
1483 case 11:
1484 input = 0;
1485 break;
1486 default:
1487 input = 1;
1488 break;
1489 }
1490 input |= ((port->device.keyboard.tr_counter & 1) == 0) << 4;
1491 }
1492 break;
1493 }
1400 #ifndef _WIN32 1494 #ifndef _WIN32
1401 case IO_SEGA_PARALLEL: 1495 case IO_SEGA_PARALLEL:
1402 if (!th) 1496 if (!th)
1403 { 1497 {
1404 service_pipe(port); 1498 service_pipe(port);