| 1 |
/* |
| 2 |
* serial_beos.cpp - Serial device driver, BeOS specific stuff |
| 3 |
* |
| 4 |
* Basilisk II (C) 1997-1999 Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#include <string.h> |
| 22 |
#include <stdio.h> |
| 23 |
#include <unistd.h> |
| 24 |
#include <DeviceKit.h> |
| 25 |
|
| 26 |
#include "sysdeps.h" |
| 27 |
#include "cpu_emulation.h" |
| 28 |
#include "main.h" |
| 29 |
#include "macos_util.h" |
| 30 |
#include "prefs.h" |
| 31 |
#include "serial.h" |
| 32 |
#include "serial_defs.h" |
| 33 |
|
| 34 |
#define DEBUG 0 |
| 35 |
#include "debug.h" |
| 36 |
|
| 37 |
#define MONITOR 0 |
| 38 |
|
| 39 |
|
| 40 |
// Buffer size for kernel-space transfers |
| 41 |
const int TMP_BUF_SIZE = 2048; |
| 42 |
|
| 43 |
// These packets are sent to the input/output threads |
| 44 |
const uint32 CMD_READ = 'read'; |
| 45 |
const uint32 CMD_WRITE = 'writ'; |
| 46 |
const uint32 CMD_QUIT = 'quit'; |
| 47 |
|
| 48 |
struct ThreadPacket { |
| 49 |
uint32 pb; |
| 50 |
}; |
| 51 |
|
| 52 |
|
| 53 |
// Driver private variables |
| 54 |
class BeSERDPort : public SERDPort { |
| 55 |
public: |
| 56 |
BeSERDPort(const char *dev) |
| 57 |
{ |
| 58 |
device_name = dev; |
| 59 |
if (strstr(dev, "parallel")) { |
| 60 |
is_parallel = true; |
| 61 |
fd = -1; |
| 62 |
device = NULL; |
| 63 |
} else { |
| 64 |
is_parallel = false; |
| 65 |
device = new BSerialPort; |
| 66 |
} |
| 67 |
device_sem = create_sem(1, "serial port"); |
| 68 |
input_thread = output_thread = 0; |
| 69 |
} |
| 70 |
|
| 71 |
virtual ~BeSERDPort() |
| 72 |
{ |
| 73 |
status_t l; |
| 74 |
if (input_thread > 0) { |
| 75 |
send_data(input_thread, CMD_QUIT, NULL, 0); |
| 76 |
suspend_thread(input_thread); // Unblock thread |
| 77 |
snooze(1000); |
| 78 |
resume_thread(input_thread); |
| 79 |
wait_for_thread(input_thread, &l); |
| 80 |
} |
| 81 |
if (output_thread > 0) { |
| 82 |
send_data(output_thread, CMD_QUIT, NULL, 0); |
| 83 |
suspend_thread(output_thread); // Unblock thread |
| 84 |
snooze(1000); |
| 85 |
resume_thread(output_thread); |
| 86 |
wait_for_thread(output_thread, &l); |
| 87 |
} |
| 88 |
acquire_sem(device_sem); |
| 89 |
delete_sem(device_sem); |
| 90 |
delete device; |
| 91 |
} |
| 92 |
|
| 93 |
virtual int16 Open(uint16 config); |
| 94 |
virtual int16 PrimeIn(uint32 pb, uint32 dce); |
| 95 |
virtual int16 PrimeOut(uint32 pb, uint32 dce); |
| 96 |
virtual int16 Control(uint32 pb, uint32 dce, uint16 code); |
| 97 |
virtual int16 Status(uint32 pb, uint32 dce, uint16 code); |
| 98 |
virtual int16 Close(void); |
| 99 |
|
| 100 |
private: |
| 101 |
bool configure(uint16 config); |
| 102 |
void set_handshake(uint32 s, bool with_dtr); |
| 103 |
static status_t input_func(void *arg); |
| 104 |
static status_t output_func(void *arg); |
| 105 |
|
| 106 |
const char *device_name; // Name of BeOS port |
| 107 |
BSerialPort *device; // BeOS port object |
| 108 |
bool is_parallel; // Flag: Port is parallel, use fd |
| 109 |
int fd; // FD for parallel ports |
| 110 |
sem_id device_sem; // BSerialPort arbitration |
| 111 |
|
| 112 |
thread_id input_thread; // Data input thread |
| 113 |
thread_id output_thread; // Data output thread |
| 114 |
|
| 115 |
bool io_killed; // Flag: KillIO called, I/O threads must not call deferred tasks |
| 116 |
bool drop_dtr_on_close; // Flag: Negate DTR when driver is closed |
| 117 |
|
| 118 |
uint8 tmp_in_buf[TMP_BUF_SIZE]; // Buffers for copying from/to kernel space |
| 119 |
uint8 tmp_out_buf[TMP_BUF_SIZE]; |
| 120 |
}; |
| 121 |
|
| 122 |
|
| 123 |
#if DEBUG |
| 124 |
static const int baud_rates[] = { |
| 125 |
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 31250 |
| 126 |
}; |
| 127 |
#endif |
| 128 |
|
| 129 |
|
| 130 |
/* |
| 131 |
* Initialization |
| 132 |
*/ |
| 133 |
|
| 134 |
void SerialInit(void) |
| 135 |
{ |
| 136 |
// Read serial preferences and create structs for both ports |
| 137 |
the_serd_port[0] = new BeSERDPort(PrefsFindString("seriala")); |
| 138 |
the_serd_port[1] = new BeSERDPort(PrefsFindString("serialb")); |
| 139 |
} |
| 140 |
|
| 141 |
|
| 142 |
/* |
| 143 |
* Deinitialization |
| 144 |
*/ |
| 145 |
|
| 146 |
void SerialExit(void) |
| 147 |
{ |
| 148 |
delete (BeSERDPort *)the_serd_port[0]; |
| 149 |
delete (BeSERDPort *)the_serd_port[1]; |
| 150 |
} |
| 151 |
|
| 152 |
|
| 153 |
/* |
| 154 |
* Open serial port |
| 155 |
*/ |
| 156 |
|
| 157 |
int16 BeSERDPort::Open(uint16 config) |
| 158 |
{ |
| 159 |
// Don't open NULL name devices |
| 160 |
if (device_name == NULL) |
| 161 |
return openErr; |
| 162 |
|
| 163 |
// Init variables |
| 164 |
io_killed = false; |
| 165 |
drop_dtr_on_close = true; |
| 166 |
|
| 167 |
// Open port |
| 168 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 169 |
if (is_parallel) { |
| 170 |
char name[256]; |
| 171 |
sprintf(name, "/dev/parallel/%s", device_name); |
| 172 |
fd = open(name, O_WRONLY); |
| 173 |
if (fd < 0) { |
| 174 |
release_sem(device_sem); |
| 175 |
return openErr; |
| 176 |
} |
| 177 |
} else { |
| 178 |
device->SetFlowControl(B_HARDWARE_CONTROL); // Must be set before port is opened |
| 179 |
if (device->Open(device_name) > 0) { |
| 180 |
device->SetBlocking(true); |
| 181 |
device->SetTimeout(10000000); |
| 182 |
device->SetDTR(true); |
| 183 |
device->SetRTS(true); |
| 184 |
} else { |
| 185 |
release_sem(device_sem); |
| 186 |
return openErr; |
| 187 |
} |
| 188 |
} |
| 189 |
|
| 190 |
// Start input/output threads |
| 191 |
release_sem(device_sem); |
| 192 |
configure(config); |
| 193 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 194 |
while ((input_thread = spawn_thread(input_func, "Serial Input", B_NORMAL_PRIORITY, this)) == B_INTERRUPTED) ; |
| 195 |
resume_thread(input_thread); |
| 196 |
while ((output_thread = spawn_thread(output_func, "Serial Output", B_NORMAL_PRIORITY, this)) == B_INTERRUPTED) ; |
| 197 |
resume_thread(output_thread); |
| 198 |
release_sem(device_sem); |
| 199 |
return noErr; |
| 200 |
} |
| 201 |
|
| 202 |
|
| 203 |
/* |
| 204 |
* Read data from port |
| 205 |
*/ |
| 206 |
|
| 207 |
int16 BeSERDPort::PrimeIn(uint32 pb, uint32 dce) |
| 208 |
{ |
| 209 |
// Send input command to input_thread |
| 210 |
read_done = false; |
| 211 |
read_pending = true; |
| 212 |
ThreadPacket p; |
| 213 |
p.pb = pb; |
| 214 |
WriteMacInt32(input_dt + serdtDCE, dce); |
| 215 |
while (send_data(input_thread, CMD_READ, &p, sizeof(ThreadPacket)) == B_INTERRUPTED) ; |
| 216 |
return 1; // Command in progress |
| 217 |
} |
| 218 |
|
| 219 |
|
| 220 |
/* |
| 221 |
* Write data to port |
| 222 |
*/ |
| 223 |
|
| 224 |
int16 BeSERDPort::PrimeOut(uint32 pb, uint32 dce) |
| 225 |
{ |
| 226 |
// Send output command to output_thread |
| 227 |
write_done = false; |
| 228 |
write_pending = true; |
| 229 |
ThreadPacket p; |
| 230 |
p.pb = pb; |
| 231 |
WriteMacInt32(output_dt + serdtDCE, dce); |
| 232 |
while (send_data(output_thread, CMD_WRITE, &p, sizeof(ThreadPacket)) == B_INTERRUPTED) ; |
| 233 |
return 1; // Command in progress |
| 234 |
} |
| 235 |
|
| 236 |
|
| 237 |
/* |
| 238 |
* Control calls |
| 239 |
*/ |
| 240 |
|
| 241 |
int16 BeSERDPort::Control(uint32 pb, uint32 dce, uint16 code) |
| 242 |
{ |
| 243 |
switch (code) { |
| 244 |
case 1: // KillIO |
| 245 |
io_killed = true; |
| 246 |
suspend_thread(input_thread); // Unblock threads |
| 247 |
suspend_thread(output_thread); |
| 248 |
snooze(1000); |
| 249 |
resume_thread(input_thread); |
| 250 |
resume_thread(output_thread); |
| 251 |
while (read_pending || write_pending) |
| 252 |
snooze(10000); |
| 253 |
if (!is_parallel) { |
| 254 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 255 |
device->ClearInput(); |
| 256 |
device->ClearOutput(); |
| 257 |
release_sem(device_sem); |
| 258 |
} |
| 259 |
io_killed = false; |
| 260 |
return noErr; |
| 261 |
|
| 262 |
case kSERDConfiguration: |
| 263 |
if (configure(ReadMacInt16(pb + csParam))) |
| 264 |
return noErr; |
| 265 |
else |
| 266 |
return paramErr; |
| 267 |
|
| 268 |
case kSERDInputBuffer: |
| 269 |
return noErr; // Not supported under BeOS |
| 270 |
|
| 271 |
case kSERDSerHShake: |
| 272 |
set_handshake(pb + csParam, false); |
| 273 |
return noErr; |
| 274 |
|
| 275 |
case kSERDClearBreak: |
| 276 |
case kSERDSetBreak: |
| 277 |
return noErr; // Not supported under BeOS |
| 278 |
|
| 279 |
case kSERDBaudRate: |
| 280 |
if (!is_parallel) { |
| 281 |
uint16 rate = ReadMacInt16(pb + csParam); |
| 282 |
data_rate baud_rate; |
| 283 |
if (rate <= 50) { |
| 284 |
rate = 50; baud_rate = B_50_BPS; |
| 285 |
} else if (rate <= 75) { |
| 286 |
rate = 75; baud_rate = B_75_BPS; |
| 287 |
} else if (rate <= 110) { |
| 288 |
rate = 110; baud_rate = B_110_BPS; |
| 289 |
} else if (rate <= 134) { |
| 290 |
rate = 134; baud_rate = B_134_BPS; |
| 291 |
} else if (rate <= 150) { |
| 292 |
rate = 150; baud_rate = B_150_BPS; |
| 293 |
} else if (rate <= 200) { |
| 294 |
rate = 200; baud_rate = B_200_BPS; |
| 295 |
} else if (rate <= 300) { |
| 296 |
rate = 300; baud_rate = B_300_BPS; |
| 297 |
} else if (rate <= 600) { |
| 298 |
rate = 600; baud_rate = B_600_BPS; |
| 299 |
} else if (rate <= 1200) { |
| 300 |
rate = 1200; baud_rate = B_1200_BPS; |
| 301 |
} else if (rate <= 1800) { |
| 302 |
rate = 1800; baud_rate = B_1800_BPS; |
| 303 |
} else if (rate <= 2400) { |
| 304 |
rate = 2400; baud_rate = B_2400_BPS; |
| 305 |
} else if (rate <= 4800) { |
| 306 |
rate = 4800; baud_rate = B_4800_BPS; |
| 307 |
} else if (rate <= 9600) { |
| 308 |
rate = 9600; baud_rate = B_9600_BPS; |
| 309 |
} else if (rate <= 19200) { |
| 310 |
rate = 19200; baud_rate = B_19200_BPS; |
| 311 |
} else if (rate <= 31250) { |
| 312 |
rate = 31250; baud_rate = B_31250_BPS; |
| 313 |
} else if (rate <= 38400) { |
| 314 |
rate = 38400; baud_rate = B_38400_BPS; |
| 315 |
} else if (rate <= 57600) { |
| 316 |
rate = 57600; baud_rate = B_57600_BPS; |
| 317 |
} |
| 318 |
WriteMacInt16(pb + csParam, rate); |
| 319 |
acquire_sem(device_sem); |
| 320 |
if (device->SetDataRate(baud_rate) == B_OK) { |
| 321 |
release_sem(device_sem); |
| 322 |
return noErr; |
| 323 |
} else { |
| 324 |
release_sem(device_sem); |
| 325 |
return paramErr; |
| 326 |
} |
| 327 |
} else |
| 328 |
return noErr; |
| 329 |
|
| 330 |
case kSERDHandshake: |
| 331 |
case kSERDHandshakeRS232: |
| 332 |
set_handshake(pb + csParam, true); |
| 333 |
return noErr; |
| 334 |
|
| 335 |
case kSERDClockMIDI: |
| 336 |
if (!is_parallel) { |
| 337 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 338 |
device->SetParityMode(B_NO_PARITY); |
| 339 |
device->SetDataBits(B_DATA_BITS_8); |
| 340 |
device->SetStopBits(B_STOP_BITS_1); |
| 341 |
if (device->SetDataRate(B_31250_BPS) == B_OK) { |
| 342 |
release_sem(device_sem); |
| 343 |
return noErr; |
| 344 |
} else { |
| 345 |
release_sem(device_sem); |
| 346 |
return paramErr; |
| 347 |
} |
| 348 |
} else |
| 349 |
return noErr; |
| 350 |
|
| 351 |
case kSERDMiscOptions: |
| 352 |
drop_dtr_on_close = !(ReadMacInt8(pb + csParam) & kOptionPreserveDTR); |
| 353 |
return noErr; |
| 354 |
|
| 355 |
case kSERDAssertDTR: |
| 356 |
if (!is_parallel) { |
| 357 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 358 |
device->SetDTR(true); |
| 359 |
release_sem(device_sem); |
| 360 |
} |
| 361 |
return noErr; |
| 362 |
|
| 363 |
case kSERDNegateDTR: |
| 364 |
if (!is_parallel) { |
| 365 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 366 |
device->SetDTR(false); |
| 367 |
release_sem(device_sem); |
| 368 |
} |
| 369 |
return noErr; |
| 370 |
|
| 371 |
case kSERDSetPEChar: |
| 372 |
case kSERDSetPEAltChar: |
| 373 |
return noErr; // Not supported under BeOS |
| 374 |
|
| 375 |
case kSERDResetChannel: |
| 376 |
if (!is_parallel) { |
| 377 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 378 |
device->ClearInput(); |
| 379 |
device->ClearOutput(); |
| 380 |
release_sem(device_sem); |
| 381 |
} |
| 382 |
return noErr; |
| 383 |
|
| 384 |
case kSERDAssertRTS: |
| 385 |
if (!is_parallel) { |
| 386 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 387 |
device->SetRTS(true); |
| 388 |
release_sem(device_sem); |
| 389 |
} |
| 390 |
return noErr; |
| 391 |
|
| 392 |
case kSERDNegateRTS: |
| 393 |
if (!is_parallel) { |
| 394 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 395 |
device->SetRTS(false); |
| 396 |
release_sem(device_sem); |
| 397 |
} |
| 398 |
return noErr; |
| 399 |
|
| 400 |
case kSERD115KBaud: |
| 401 |
if (!is_parallel) { |
| 402 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 403 |
if (device->DataRate() != B_115200_BPS) |
| 404 |
if (device->SetDataRate(B_115200_BPS) != B_OK) { |
| 405 |
release_sem(device_sem); |
| 406 |
return paramErr; |
| 407 |
} |
| 408 |
release_sem(device_sem); |
| 409 |
} |
| 410 |
return noErr; |
| 411 |
|
| 412 |
case kSERD230KBaud: |
| 413 |
case kSERDSetHighSpeed: |
| 414 |
if (!is_parallel) { |
| 415 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 416 |
if (device->DataRate() != B_230400_BPS) |
| 417 |
if (device->SetDataRate(B_230400_BPS) != B_OK) { |
| 418 |
release_sem(device_sem); |
| 419 |
return paramErr; |
| 420 |
} |
| 421 |
release_sem(device_sem); |
| 422 |
} |
| 423 |
return noErr; |
| 424 |
|
| 425 |
default: |
| 426 |
printf("WARNING: SerialControl(): unimplemented control code %d\n", code); |
| 427 |
return controlErr; |
| 428 |
} |
| 429 |
} |
| 430 |
|
| 431 |
|
| 432 |
/* |
| 433 |
* Status calls |
| 434 |
*/ |
| 435 |
|
| 436 |
int16 BeSERDPort::Status(uint32 pb, uint32 dce, uint16 code) |
| 437 |
{ |
| 438 |
switch (code) { |
| 439 |
case kSERDInputCount: |
| 440 |
WriteMacInt32(pb + csParam, 0); |
| 441 |
if (!is_parallel) { |
| 442 |
int32 num = 0; |
| 443 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 444 |
device->NumCharsAvailable(&num); |
| 445 |
release_sem(device_sem); |
| 446 |
D(bug(" %d bytes in buffer\n", num)); |
| 447 |
WriteMacInt32(pb + csParam, num); |
| 448 |
} |
| 449 |
return noErr; |
| 450 |
|
| 451 |
case kSERDStatus: { |
| 452 |
uint32 p = pb + csParam; |
| 453 |
WriteMacInt8(p + staCumErrs, cum_errors); |
| 454 |
cum_errors = 0; |
| 455 |
WriteMacInt8(p + staXOffSent, 0); |
| 456 |
WriteMacInt8(p + staXOffHold, 0); |
| 457 |
WriteMacInt8(p + staRdPend, read_pending); |
| 458 |
WriteMacInt8(p + staWrPend, write_pending); |
| 459 |
if (is_parallel) { |
| 460 |
WriteMacInt8(p + staCtsHold, 0); |
| 461 |
WriteMacInt8(p + staDsrHold, 0); |
| 462 |
WriteMacInt8(p + staModemStatus, dsrEvent | dcdEvent | ctsEvent); |
| 463 |
} else { |
| 464 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 465 |
WriteMacInt8(p + staCtsHold, !device->IsCTS()); |
| 466 |
WriteMacInt8(p + staDsrHold, !device->IsDSR()); |
| 467 |
WriteMacInt8(p + staModemStatus, |
| 468 |
(device->IsDSR() ? dsrEvent : 0) |
| 469 |
| (device->IsRI() ? riEvent : 0) |
| 470 |
| (device->IsDCD() ? dcdEvent : 0) |
| 471 |
| (device->IsCTS() ? ctsEvent : 0)); |
| 472 |
release_sem(device_sem); |
| 473 |
} |
| 474 |
return noErr; |
| 475 |
} |
| 476 |
|
| 477 |
default: |
| 478 |
printf("WARNING: SerialStatus(): unimplemented status code %d\n", code); |
| 479 |
return statusErr; |
| 480 |
} |
| 481 |
} |
| 482 |
|
| 483 |
|
| 484 |
/* |
| 485 |
* Close serial port |
| 486 |
*/ |
| 487 |
|
| 488 |
int16 BeSERDPort::Close() |
| 489 |
{ |
| 490 |
// Kill threads |
| 491 |
status_t l; |
| 492 |
io_killed = true; |
| 493 |
if (input_thread > 0) { |
| 494 |
while (send_data(input_thread, CMD_QUIT, NULL, 0) == B_INTERRUPTED) ; |
| 495 |
if (read_pending) { |
| 496 |
suspend_thread(input_thread); // Unblock thread |
| 497 |
snooze(1000); |
| 498 |
resume_thread(input_thread); |
| 499 |
} |
| 500 |
while (wait_for_thread(input_thread, &l) == B_INTERRUPTED) ; |
| 501 |
} |
| 502 |
if (output_thread > 0) { |
| 503 |
while (send_data(output_thread, CMD_QUIT, NULL, 0) == B_INTERRUPTED) ; |
| 504 |
if (write_pending) { |
| 505 |
suspend_thread(output_thread); // Unblock thread |
| 506 |
snooze(1000); |
| 507 |
resume_thread(output_thread); |
| 508 |
} |
| 509 |
while (wait_for_thread(output_thread, &l) == B_INTERRUPTED) ; |
| 510 |
} |
| 511 |
input_thread = output_thread = 0; |
| 512 |
|
| 513 |
// Close port |
| 514 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 515 |
if (is_parallel) { |
| 516 |
close(fd); |
| 517 |
fd = -1; |
| 518 |
} else { |
| 519 |
if (drop_dtr_on_close) |
| 520 |
device->SetDTR(false); |
| 521 |
device->Close(); |
| 522 |
} |
| 523 |
release_sem(device_sem); |
| 524 |
return noErr; |
| 525 |
} |
| 526 |
|
| 527 |
|
| 528 |
/* |
| 529 |
* Configure serial port with MacOS config word |
| 530 |
*/ |
| 531 |
|
| 532 |
bool BeSERDPort::configure(uint16 config) |
| 533 |
{ |
| 534 |
D(bug(" configure %04x\n", config)); |
| 535 |
if (is_parallel) |
| 536 |
return true; |
| 537 |
|
| 538 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 539 |
|
| 540 |
// Set number of stop bits |
| 541 |
switch (config & 0xc000) { |
| 542 |
case stop10: |
| 543 |
if (device->StopBits() != B_STOP_BITS_1) |
| 544 |
device->SetStopBits(B_STOP_BITS_1); |
| 545 |
break; |
| 546 |
case stop20: |
| 547 |
if (device->StopBits() != B_STOP_BITS_2) |
| 548 |
device->SetStopBits(B_STOP_BITS_2); |
| 549 |
break; |
| 550 |
default: |
| 551 |
release_sem(device_sem); |
| 552 |
return false; |
| 553 |
} |
| 554 |
|
| 555 |
// Set parity mode |
| 556 |
switch (config & 0x3000) { |
| 557 |
case noParity: |
| 558 |
if (device->ParityMode() != B_NO_PARITY) |
| 559 |
device->SetParityMode(B_NO_PARITY); |
| 560 |
break; |
| 561 |
case oddParity: |
| 562 |
if (device->ParityMode() != B_ODD_PARITY) |
| 563 |
device->SetParityMode(B_ODD_PARITY); |
| 564 |
break; |
| 565 |
case evenParity: |
| 566 |
if (device->ParityMode() != B_EVEN_PARITY) |
| 567 |
device->SetParityMode(B_EVEN_PARITY); |
| 568 |
break; |
| 569 |
default: |
| 570 |
release_sem(device_sem); |
| 571 |
return false; |
| 572 |
} |
| 573 |
|
| 574 |
// Set number of data bits |
| 575 |
switch (config & 0x0c00) { |
| 576 |
case data7: |
| 577 |
if (device->DataBits() != B_DATA_BITS_7) |
| 578 |
device->SetDataBits(B_DATA_BITS_7); |
| 579 |
break; |
| 580 |
case data8: |
| 581 |
if (device->DataBits() != B_DATA_BITS_8) |
| 582 |
device->SetDataBits(B_DATA_BITS_8); |
| 583 |
break; |
| 584 |
default: |
| 585 |
release_sem(device_sem); |
| 586 |
return false; |
| 587 |
} |
| 588 |
|
| 589 |
// Set baud rate |
| 590 |
data_rate baud_rate; |
| 591 |
switch (config & 0x03ff) { |
| 592 |
case baud150: baud_rate = B_150_BPS; break; |
| 593 |
case baud300: baud_rate = B_300_BPS; break; |
| 594 |
case baud600: baud_rate = B_600_BPS; break; |
| 595 |
case baud1200: baud_rate = B_1200_BPS; break; |
| 596 |
case baud1800: baud_rate = B_1800_BPS; break; |
| 597 |
case baud2400: baud_rate = B_2400_BPS; break; |
| 598 |
case baud4800: baud_rate = B_4800_BPS; break; |
| 599 |
case baud9600: baud_rate = B_9600_BPS; break; |
| 600 |
case baud19200: baud_rate = B_19200_BPS; break; |
| 601 |
case baud38400: baud_rate = B_38400_BPS; break; |
| 602 |
case baud57600: baud_rate = B_57600_BPS; break; |
| 603 |
default: |
| 604 |
release_sem(device_sem); |
| 605 |
return false; |
| 606 |
} |
| 607 |
|
| 608 |
D(bug(" baud rate %d, %d stop bits, %s parity, %d data bits\n", baud_rates[baud_rate], device->StopBits() == B_STOP_BITS_1 ? 1 : 2, device->ParityMode() == B_NO_PARITY ? "no" : device->ParityMode() == B_ODD_PARITY ? "odd" : "even", device->DataBits() == B_DATA_BITS_7 ? 7 : 8)); |
| 609 |
if (device->DataRate() != baud_rate) { |
| 610 |
bool res = device->SetDataRate(baud_rate) == B_OK; |
| 611 |
release_sem(device_sem); |
| 612 |
return res; |
| 613 |
} else { |
| 614 |
release_sem(device_sem); |
| 615 |
return true; |
| 616 |
} |
| 617 |
} |
| 618 |
|
| 619 |
|
| 620 |
/* |
| 621 |
* Set serial handshaking |
| 622 |
*/ |
| 623 |
|
| 624 |
void BeSERDPort::set_handshake(uint32 s, bool with_dtr) |
| 625 |
{ |
| 626 |
D(bug(" set_handshake %02x %02x %02x %02x %02x %02x %02x %02x\n", |
| 627 |
ReadMacInt8(s + 0), ReadMacInt8(s + 1), ReadMacInt8(s + 2), ReadMacInt8(s + 3), |
| 628 |
ReadMacInt8(s + 4), ReadMacInt8(s + 5), ReadMacInt8(s + 6), ReadMacInt8(s + 7))); |
| 629 |
if (is_parallel) |
| 630 |
return; |
| 631 |
|
| 632 |
uint32 flow; |
| 633 |
if (with_dtr) { |
| 634 |
if (ReadMacInt8(s + shkFCTS) || ReadMacInt8(s + shkFDTR)) |
| 635 |
flow = B_HARDWARE_CONTROL; |
| 636 |
else |
| 637 |
flow = B_SOFTWARE_CONTROL; |
| 638 |
} else { |
| 639 |
if (ReadMacInt8(s + shkFCTS)) |
| 640 |
flow = B_HARDWARE_CONTROL; |
| 641 |
else |
| 642 |
flow = B_SOFTWARE_CONTROL; |
| 643 |
} |
| 644 |
|
| 645 |
D(bug(" %sware flow control\n", flow == B_HARDWARE_CONTROL ? "hard" : "soft")); |
| 646 |
while (acquire_sem(device_sem) == B_INTERRUPTED) ; |
| 647 |
if (device->FlowControl() != flow) { |
| 648 |
device->Close(); |
| 649 |
device->SetFlowControl(flow); |
| 650 |
device->Open(device_name); |
| 651 |
} |
| 652 |
release_sem(device_sem); |
| 653 |
} |
| 654 |
|
| 655 |
|
| 656 |
/* |
| 657 |
* Data input thread |
| 658 |
*/ |
| 659 |
|
| 660 |
status_t BeSERDPort::input_func(void *arg) |
| 661 |
{ |
| 662 |
BeSERDPort *s = (BeSERDPort *)arg; |
| 663 |
for (;;) { |
| 664 |
|
| 665 |
// Wait for commands |
| 666 |
thread_id sender; |
| 667 |
ThreadPacket p; |
| 668 |
uint32 code = receive_data(&sender, &p, sizeof(ThreadPacket)); |
| 669 |
if (code == CMD_QUIT) |
| 670 |
break; |
| 671 |
if (code != CMD_READ) |
| 672 |
continue; |
| 673 |
|
| 674 |
// Execute command |
| 675 |
void *buf = Mac2HostAddr(ReadMacInt32(p.pb + ioBuffer)); |
| 676 |
uint32 length = ReadMacInt32(p.pb + ioReqCount); |
| 677 |
D(bug("input_func waiting for %ld bytes of data...\n", length)); |
| 678 |
int32 actual; |
| 679 |
|
| 680 |
// Buffer in kernel space? |
| 681 |
if ((uint32)buf < 0x80000000) { |
| 682 |
|
| 683 |
// Yes, transfer via buffer |
| 684 |
actual = 0; |
| 685 |
while (length) { |
| 686 |
uint32 transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 687 |
int32 transferred; |
| 688 |
acquire_sem(s->device_sem); |
| 689 |
if (s->is_parallel) { |
| 690 |
if ((transferred = read(s->fd, s->tmp_in_buf, transfer_size)) < 0 || s->io_killed) { |
| 691 |
// Error |
| 692 |
actual = transferred; |
| 693 |
release_sem(s->device_sem); |
| 694 |
break; |
| 695 |
} |
| 696 |
} else { |
| 697 |
if ((transferred = s->device->Read(s->tmp_in_buf, transfer_size)) < 0 || s->io_killed) { |
| 698 |
// Error |
| 699 |
actual = transferred; |
| 700 |
release_sem(s->device_sem); |
| 701 |
break; |
| 702 |
} |
| 703 |
} |
| 704 |
release_sem(s->device_sem); |
| 705 |
memcpy(buf, s->tmp_in_buf, transferred); |
| 706 |
buf = (void *)((uint8 *)buf + transferred); |
| 707 |
length -= transferred; |
| 708 |
actual += transferred; |
| 709 |
} |
| 710 |
|
| 711 |
} else { |
| 712 |
|
| 713 |
// No, transfer directly |
| 714 |
acquire_sem(s->device_sem); |
| 715 |
if (s->is_parallel) |
| 716 |
actual = read(s->fd, buf, length); |
| 717 |
else |
| 718 |
actual = s->device->Read(buf, length); |
| 719 |
release_sem(s->device_sem); |
| 720 |
} |
| 721 |
|
| 722 |
D(bug(" %ld bytes received\n", actual)); |
| 723 |
|
| 724 |
#if MONITOR |
| 725 |
bug("Receiving serial data:\n"); |
| 726 |
uint8 *adr = Mac2HostAddr(ReadMacInt32(p.pb + ioBuffer)); |
| 727 |
for (int i=0; i<actual; i++) { |
| 728 |
bug("%02x ", adr[i]); |
| 729 |
} |
| 730 |
bug("\n"); |
| 731 |
#endif |
| 732 |
|
| 733 |
// KillIO called? Then simply return |
| 734 |
if (s->io_killed) { |
| 735 |
|
| 736 |
WriteMacInt16(p.pb + ioResult, abortErr); |
| 737 |
WriteMacInt32(p.pb + ioActCount, 0); |
| 738 |
s->read_pending = s->read_done = false; |
| 739 |
|
| 740 |
} else { |
| 741 |
|
| 742 |
// Set error code |
| 743 |
if (actual >= 0) { |
| 744 |
WriteMacInt32(p.pb + ioActCount, actual); |
| 745 |
WriteMacInt32(s->input_dt + serdtResult, noErr); |
| 746 |
} else { |
| 747 |
WriteMacInt32(p.pb + ioActCount, 0); |
| 748 |
WriteMacInt32(s->input_dt + serdtResult, readErr); |
| 749 |
} |
| 750 |
|
| 751 |
// Trigger serial interrupt |
| 752 |
D(bug(" triggering serial interrupt\n")); |
| 753 |
s->read_done = true; |
| 754 |
SetInterruptFlag(INTFLAG_SERIAL); |
| 755 |
TriggerInterrupt(); |
| 756 |
} |
| 757 |
} |
| 758 |
return 0; |
| 759 |
} |
| 760 |
|
| 761 |
|
| 762 |
/* |
| 763 |
* Data output thread |
| 764 |
*/ |
| 765 |
|
| 766 |
status_t BeSERDPort::output_func(void *arg) |
| 767 |
{ |
| 768 |
BeSERDPort *s = (BeSERDPort *)arg; |
| 769 |
for (;;) { |
| 770 |
|
| 771 |
// Wait for commands |
| 772 |
thread_id sender; |
| 773 |
ThreadPacket p; |
| 774 |
uint32 code = receive_data(&sender, &p, sizeof(ThreadPacket)); |
| 775 |
if (code == CMD_QUIT) |
| 776 |
break; |
| 777 |
if (code != CMD_WRITE) |
| 778 |
continue; |
| 779 |
|
| 780 |
// Execute command |
| 781 |
void *buf = Mac2HostAddr(ReadMacInt32(p.pb + ioBuffer)); |
| 782 |
uint32 length = ReadMacInt32(p.pb + ioReqCount); |
| 783 |
D(bug("output_func transmitting %ld bytes of data...\n", length)); |
| 784 |
int32 actual; |
| 785 |
|
| 786 |
#if MONITOR |
| 787 |
bug("Sending serial data:\n"); |
| 788 |
uint8 *adr = (uint8 *)buf; |
| 789 |
for (int i=0; i<length; i++) { |
| 790 |
bug("%02x ", adr[i]); |
| 791 |
} |
| 792 |
bug("\n"); |
| 793 |
#endif |
| 794 |
|
| 795 |
// Buffer in kernel space? |
| 796 |
if ((uint32)buf < 0x80000000) { |
| 797 |
|
| 798 |
// Yes, transfer via buffer |
| 799 |
actual = 0; |
| 800 |
while (length) { |
| 801 |
uint32 transfer_size = (length > TMP_BUF_SIZE) ? TMP_BUF_SIZE : length; |
| 802 |
memcpy(s->tmp_out_buf, buf, transfer_size); |
| 803 |
int32 transferred; |
| 804 |
acquire_sem(s->device_sem); |
| 805 |
if (s->is_parallel) { |
| 806 |
if ((transferred = write(s->fd, s->tmp_out_buf, transfer_size)) < transfer_size || s->io_killed) { |
| 807 |
if (transferred < 0) // Error |
| 808 |
actual = transferred; |
| 809 |
else |
| 810 |
actual += transferred; |
| 811 |
release_sem(s->device_sem); |
| 812 |
break; |
| 813 |
} |
| 814 |
} else { |
| 815 |
if ((transferred = s->device->Write(s->tmp_out_buf, transfer_size)) < transfer_size || s->io_killed) { |
| 816 |
if (transferred < 0) // Error |
| 817 |
actual = transferred; |
| 818 |
else |
| 819 |
actual += transferred; |
| 820 |
release_sem(s->device_sem); |
| 821 |
break; |
| 822 |
} |
| 823 |
} |
| 824 |
release_sem(s->device_sem); |
| 825 |
if (transferred > transfer_size) // R3 parallel port driver bug |
| 826 |
transferred = transfer_size; |
| 827 |
buf = (void *)((uint8 *)buf + transferred); |
| 828 |
length -= transferred; |
| 829 |
actual += transferred; |
| 830 |
} |
| 831 |
|
| 832 |
} else { |
| 833 |
|
| 834 |
// No, transfer directly |
| 835 |
acquire_sem(s->device_sem); |
| 836 |
if (s->is_parallel) |
| 837 |
actual = write(s->fd, buf, length); |
| 838 |
else |
| 839 |
actual = s->device->Write(buf, length); |
| 840 |
release_sem(s->device_sem); |
| 841 |
if (actual > length) // R3 parallel port driver bug |
| 842 |
actual = length; |
| 843 |
} |
| 844 |
|
| 845 |
D(bug(" %ld bytes transmitted\n", actual)); |
| 846 |
|
| 847 |
// KillIO called? Then simply return |
| 848 |
if (s->io_killed) { |
| 849 |
|
| 850 |
WriteMacInt16(p.pb + ioResult, abortErr); |
| 851 |
WriteMacInt32(p.pb + ioActCount, 0); |
| 852 |
s->write_pending = s->write_done = false; |
| 853 |
|
| 854 |
} else { |
| 855 |
|
| 856 |
// Set error code |
| 857 |
if (actual >= 0) { |
| 858 |
WriteMacInt32(p.pb + ioActCount, actual); |
| 859 |
WriteMacInt32(s->output_dt + serdtResult, noErr); |
| 860 |
} else { |
| 861 |
WriteMacInt32(p.pb + ioActCount, 0); |
| 862 |
WriteMacInt32(s->output_dt + serdtResult, writErr); |
| 863 |
} |
| 864 |
|
| 865 |
// Trigger serial interrupt |
| 866 |
D(bug(" triggering serial interrupt\n")); |
| 867 |
s->write_done = true; |
| 868 |
SetInterruptFlag(INTFLAG_SERIAL); |
| 869 |
TriggerInterrupt(); |
| 870 |
} |
| 871 |
} |
| 872 |
return 0; |
| 873 |
} |
