| 1 |
/* |
| 2 |
* serial_amiga.cpp - Serial device driver, AmigaOS 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 <exec/types.h> |
| 22 |
#include <exec/memory.h> |
| 23 |
#include <exec/errors.h> |
| 24 |
#include <dos/dos.h> |
| 25 |
#include <dos/dosextens.h> |
| 26 |
#include <dos/dostags.h> |
| 27 |
#include <devices/serial.h> |
| 28 |
#include <devices/parallel.h> |
| 29 |
#include <proto/exec.h> |
| 30 |
#include <proto/dos.h> |
| 31 |
|
| 32 |
#include "sysdeps.h" |
| 33 |
#include "cpu_emulation.h" |
| 34 |
#include "main.h" |
| 35 |
#include "macos_util.h" |
| 36 |
#include "prefs.h" |
| 37 |
#include "serial.h" |
| 38 |
#include "serial_defs.h" |
| 39 |
|
| 40 |
#define DEBUG 0 |
| 41 |
#include "debug.h" |
| 42 |
|
| 43 |
#define MONITOR 0 |
| 44 |
|
| 45 |
|
| 46 |
// These messages are sent to the serial process |
| 47 |
const uint32 MSG_QUERY = 'qery'; // Query port status, return status in control_io |
| 48 |
const uint32 MSG_SET_PARAMS = 'setp'; // Set serial parameters (parameters in control_io) |
| 49 |
const uint32 MSG_SET_PAR_PARAMS = 'pstp'; // Set parallel parameters (parameters in control_io) |
| 50 |
const uint32 MSG_KILL_IO = 'kill'; // Kill pending I/O requests |
| 51 |
const uint32 MSG_BREAK = 'brek'; // Send break |
| 52 |
const uint32 MSG_RESET = 'rset'; // Reset channel |
| 53 |
const uint32 MSG_PRIME_IN = 'prin'; // Data input |
| 54 |
const uint32 MSG_PRIME_OUT = 'pout'; // Data output |
| 55 |
|
| 56 |
struct SerMessage : public Message { |
| 57 |
SerMessage(uint32 what_, const struct MsgPort *reply_port = NULL) |
| 58 |
{ |
| 59 |
what = what_; |
| 60 |
mn_ReplyPort = (struct MsgPort *)reply_port; |
| 61 |
mn_Length = sizeof(*this); |
| 62 |
} |
| 63 |
uint32 what; |
| 64 |
uint32 pb; |
| 65 |
}; |
| 66 |
|
| 67 |
|
| 68 |
// Driver private variables |
| 69 |
class ASERDPort : public SERDPort { |
| 70 |
public: |
| 71 |
ASERDPort(const char *dev) |
| 72 |
{ |
| 73 |
device_name = dev; |
| 74 |
if (dev && dev[0] == '*') { |
| 75 |
is_parallel = true; |
| 76 |
device_name++; |
| 77 |
} else |
| 78 |
is_parallel = false; |
| 79 |
control_io = NULL; |
| 80 |
serial_proc = NULL; |
| 81 |
reply_port = NULL; |
| 82 |
} |
| 83 |
|
| 84 |
virtual ~ASERDPort() |
| 85 |
{ |
| 86 |
} |
| 87 |
|
| 88 |
virtual int16 Open(uint16 config); |
| 89 |
virtual int16 PrimeIn(uint32 pb, uint32 dce); |
| 90 |
virtual int16 PrimeOut(uint32 pb, uint32 dce); |
| 91 |
virtual int16 Control(uint32 pb, uint32 dce, uint16 code); |
| 92 |
virtual int16 Status(uint32 pb, uint32 dce, uint16 code); |
| 93 |
virtual int16 Close(void); |
| 94 |
|
| 95 |
private: |
| 96 |
bool configure(uint16 config); |
| 97 |
void set_handshake(uint32 s, bool with_dtr); |
| 98 |
void send_to_proc(uint32 what, uint32 pb = 0); |
| 99 |
bool query(void); |
| 100 |
bool set_params(void); |
| 101 |
bool set_par_params(void); |
| 102 |
void conv_error(struct IOExtSer *io, uint32 dt); |
| 103 |
static void serial_func(void); |
| 104 |
|
| 105 |
const char *device_name; // Device name |
| 106 |
bool is_parallel; // Flag: Port is parallel |
| 107 |
IOExtSer *control_io; // IORequest for setting serial port characteristics etc. |
| 108 |
|
| 109 |
struct Process *serial_proc; // Serial device handler process |
| 110 |
bool proc_error; // Flag: process didn't initialize |
| 111 |
struct MsgPort *proc_port; // Message port of process, for communication with main task |
| 112 |
struct MsgPort *reply_port; // Reply port for communication with process |
| 113 |
|
| 114 |
uint8 err_mask; // shkErrs |
| 115 |
}; |
| 116 |
|
| 117 |
|
| 118 |
// Global variables |
| 119 |
static void *proc_arg; // Argument to process |
| 120 |
extern struct Task *MainTask; // Pointer to main task (from main_amiga.cpp) |
| 121 |
|
| 122 |
|
| 123 |
/* |
| 124 |
* Initialization |
| 125 |
*/ |
| 126 |
|
| 127 |
void SerialInit(void) |
| 128 |
{ |
| 129 |
// Read serial preferences and create structs for both ports |
| 130 |
the_serd_port[0] = new ASERDPort(PrefsFindString("seriala")); |
| 131 |
the_serd_port[1] = new ASERDPort(PrefsFindString("serialb")); |
| 132 |
} |
| 133 |
|
| 134 |
|
| 135 |
/* |
| 136 |
* Deinitialization |
| 137 |
*/ |
| 138 |
|
| 139 |
void SerialExit(void) |
| 140 |
{ |
| 141 |
delete (ASERDPort *)the_serd_port[0]; |
| 142 |
delete (ASERDPort *)the_serd_port[1]; |
| 143 |
} |
| 144 |
|
| 145 |
|
| 146 |
/* |
| 147 |
* Open serial port |
| 148 |
*/ |
| 149 |
|
| 150 |
int16 ASERDPort::Open(uint16 config) |
| 151 |
{ |
| 152 |
// Don't open NULL name devices |
| 153 |
if (device_name == NULL) |
| 154 |
return openErr; |
| 155 |
|
| 156 |
// Init variables |
| 157 |
err_mask = 0; |
| 158 |
|
| 159 |
// Create message port |
| 160 |
reply_port = CreateMsgPort(); |
| 161 |
if (reply_port == NULL) |
| 162 |
goto open_error; |
| 163 |
|
| 164 |
// Start process |
| 165 |
proc_error = false; |
| 166 |
proc_arg = this; |
| 167 |
SetSignal(0, SIGF_SINGLE); |
| 168 |
serial_proc = CreateNewProcTags( |
| 169 |
NP_Entry, serial_func, |
| 170 |
NP_Name, "Basilisk II Serial Task", |
| 171 |
NP_Priority, 1, |
| 172 |
TAG_END |
| 173 |
); |
| 174 |
if (serial_proc == NULL) |
| 175 |
goto open_error; |
| 176 |
|
| 177 |
// Wait for signal from process |
| 178 |
Wait(SIGF_SINGLE); |
| 179 |
|
| 180 |
// Initialization error? Then bail out |
| 181 |
if (proc_error) |
| 182 |
goto open_error; |
| 183 |
|
| 184 |
// Configure port |
| 185 |
configure(config); |
| 186 |
return noErr; |
| 187 |
|
| 188 |
open_error: |
| 189 |
serial_proc = NULL; |
| 190 |
if (reply_port) { |
| 191 |
DeleteMsgPort(reply_port); |
| 192 |
reply_port = NULL; |
| 193 |
} |
| 194 |
return openErr; |
| 195 |
} |
| 196 |
|
| 197 |
|
| 198 |
/* |
| 199 |
* Read data from port |
| 200 |
*/ |
| 201 |
|
| 202 |
int16 ASERDPort::PrimeIn(uint32 pb, uint32 dce) |
| 203 |
{ |
| 204 |
// Send input command to serial process |
| 205 |
D(bug("primein\n")); |
| 206 |
read_done = false; |
| 207 |
read_pending = true; |
| 208 |
WriteMacInt32(input_dt + serdtDCE, dce); |
| 209 |
send_to_proc(MSG_PRIME_IN, pb); |
| 210 |
return 1; // Command in progress |
| 211 |
} |
| 212 |
|
| 213 |
|
| 214 |
/* |
| 215 |
* Write data to port |
| 216 |
*/ |
| 217 |
|
| 218 |
int16 ASERDPort::PrimeOut(uint32 pb, uint32 dce) |
| 219 |
{ |
| 220 |
// Send output command to serial process |
| 221 |
D(bug("primeout\n")); |
| 222 |
write_done = false; |
| 223 |
write_pending = true; |
| 224 |
WriteMacInt32(output_dt + serdtDCE, dce); |
| 225 |
send_to_proc(MSG_PRIME_OUT, pb); |
| 226 |
return 1; // Command in progress |
| 227 |
} |
| 228 |
|
| 229 |
|
| 230 |
/* |
| 231 |
* Control calls |
| 232 |
*/ |
| 233 |
|
| 234 |
int16 ASERDPort::Control(uint32 pb, uint32 dce, uint16 code) |
| 235 |
{ |
| 236 |
D(bug("control(%ld)\n", (uint32)code)); |
| 237 |
switch (code) { |
| 238 |
case 1: // KillIO |
| 239 |
send_to_proc(MSG_KILL_IO); |
| 240 |
return noErr; |
| 241 |
|
| 242 |
case kSERDConfiguration: |
| 243 |
if (configure(ReadMacInt16(pb + csParam))) |
| 244 |
return noErr; |
| 245 |
else |
| 246 |
return paramErr; |
| 247 |
|
| 248 |
case kSERDInputBuffer: { |
| 249 |
if (is_parallel) |
| 250 |
return noErr; |
| 251 |
int buf = ReadMacInt16(pb + csParam + 4) & 0xffffffc0; |
| 252 |
if (buf < 1024) // 1k minimum |
| 253 |
buf = 1024; |
| 254 |
D(bug(" buffer size is now %08lx\n", buf)); |
| 255 |
control_io->io_RBufLen = buf; |
| 256 |
return set_params() ? noErr : paramErr; |
| 257 |
} |
| 258 |
|
| 259 |
case kSERDSerHShake: |
| 260 |
set_handshake(pb + csParam, false); |
| 261 |
return noErr; |
| 262 |
|
| 263 |
case kSERDSetBreak: |
| 264 |
if (!is_parallel) |
| 265 |
send_to_proc(MSG_BREAK); |
| 266 |
return noErr; |
| 267 |
|
| 268 |
case kSERDClearBreak: |
| 269 |
return noErr; |
| 270 |
|
| 271 |
case kSERDBaudRate: |
| 272 |
if (is_parallel) |
| 273 |
return noErr; |
| 274 |
control_io->io_Baud = ReadMacInt16(pb + csParam); |
| 275 |
D(bug(" baud rate %ld\n", control_io->io_Baud)); |
| 276 |
return set_params() ? noErr : paramErr; |
| 277 |
|
| 278 |
case kSERDHandshake: |
| 279 |
case kSERDHandshakeRS232: |
| 280 |
set_handshake(pb + csParam, true); |
| 281 |
return noErr; |
| 282 |
|
| 283 |
case kSERDClockMIDI: |
| 284 |
if (is_parallel) |
| 285 |
return noErr; |
| 286 |
control_io->io_Baud = 31250; |
| 287 |
control_io->io_SerFlags = SERF_XDISABLED | SERF_SHARED; |
| 288 |
control_io->io_StopBits = 1; |
| 289 |
control_io->io_ReadLen = control_io->io_WriteLen = 8; |
| 290 |
return set_params() ? noErr : paramErr; |
| 291 |
|
| 292 |
case kSERDMiscOptions: |
| 293 |
case kSERDAssertDTR: |
| 294 |
case kSERDNegateDTR: |
| 295 |
case kSERDSetPEChar: |
| 296 |
case kSERDSetPEAltChar: |
| 297 |
case kSERDAssertRTS: |
| 298 |
case kSERDNegateRTS: |
| 299 |
return noErr; // Not supported under AmigaOS |
| 300 |
|
| 301 |
case kSERD115KBaud: |
| 302 |
if (is_parallel) |
| 303 |
return noErr; |
| 304 |
control_io->io_Baud = 115200; |
| 305 |
return set_params() ? noErr : paramErr; |
| 306 |
|
| 307 |
case kSERD230KBaud: |
| 308 |
case kSERDSetHighSpeed: |
| 309 |
if (is_parallel) |
| 310 |
return noErr; |
| 311 |
control_io->io_Baud = 230400; |
| 312 |
return set_params() ? noErr : paramErr; |
| 313 |
|
| 314 |
case kSERDResetChannel: |
| 315 |
send_to_proc(MSG_RESET); |
| 316 |
return noErr; |
| 317 |
|
| 318 |
default: |
| 319 |
printf("WARNING: SerialControl(): unimplemented control code %d\n", code); |
| 320 |
return controlErr; |
| 321 |
} |
| 322 |
} |
| 323 |
|
| 324 |
|
| 325 |
/* |
| 326 |
* Status calls |
| 327 |
*/ |
| 328 |
|
| 329 |
int16 ASERDPort::Status(uint32 pb, uint32 dce, uint16 code) |
| 330 |
{ |
| 331 |
D(bug("status(%ld)\n", (uint32)code)); |
| 332 |
switch (code) { |
| 333 |
case kSERDInputCount: |
| 334 |
WriteMacInt32(pb + csParam, 0); |
| 335 |
if (!is_parallel) { |
| 336 |
if (!query()) |
| 337 |
return noErr; |
| 338 |
D(bug("status(2) successful, returning %08lx\n", control_io->IOSer.io_Actual)); |
| 339 |
WriteMacInt32(pb + csParam, control_io->IOSer.io_Actual); |
| 340 |
} |
| 341 |
return noErr; |
| 342 |
|
| 343 |
case kSERDStatus: { |
| 344 |
uint32 p = pb + csParam; |
| 345 |
WriteMacInt8(p + staCumErrs, cum_errors); |
| 346 |
cum_errors = 0; |
| 347 |
WriteMacInt8(p + staRdPend, read_pending); |
| 348 |
WriteMacInt8(p + staWrPend, write_pending); |
| 349 |
if (is_parallel) { |
| 350 |
WriteMacInt8(p + staXOffSent, 0); |
| 351 |
WriteMacInt8(p + staXOffHold, 0); |
| 352 |
WriteMacInt8(p + staCtsHold, 0); |
| 353 |
WriteMacInt8(p + staDsrHold, 0); |
| 354 |
WriteMacInt8(p + staModemStatus, dsrEvent | dcdEvent | ctsEvent); |
| 355 |
} else { |
| 356 |
query(); |
| 357 |
WriteMacInt8(p + staXOffSent, |
| 358 |
(control_io->io_Status & IO_STATF_XOFFREAD ? xOffWasSent : 0) |
| 359 |
| (control_io->io_Status & (1 << 6) ? dtrNegated : 0)); // RTS |
| 360 |
WriteMacInt8(p + staXOffHold, control_io->io_Status & IO_STATF_XOFFWRITE); |
| 361 |
WriteMacInt8(p + staCtsHold, control_io->io_Status & (1 << 4)); // CTS |
| 362 |
WriteMacInt8(p + staDsrHold, control_io->io_Status & (1 << 3)); // DSR |
| 363 |
WriteMacInt8(p + staModemStatus, |
| 364 |
(control_io->io_Status & (1 << 3) ? 0 : dsrEvent) |
| 365 |
| (control_io->io_Status & (1 << 2) ? riEvent : 0) |
| 366 |
| (control_io->io_Status & (1 << 5) ? 0 : dcdEvent) |
| 367 |
| (control_io->io_Status & (1 << 4) ? 0 : ctsEvent) |
| 368 |
| (control_io->io_Status & IO_STATF_READBREAK ? breakEvent : 0)); |
| 369 |
} |
| 370 |
return noErr; |
| 371 |
} |
| 372 |
|
| 373 |
default: |
| 374 |
printf("WARNING: SerialStatus(): unimplemented status code %d\n", code); |
| 375 |
return statusErr; |
| 376 |
} |
| 377 |
} |
| 378 |
|
| 379 |
|
| 380 |
/* |
| 381 |
* Close serial port |
| 382 |
*/ |
| 383 |
|
| 384 |
int16 ASERDPort::Close() |
| 385 |
{ |
| 386 |
// Stop process |
| 387 |
if (serial_proc) { |
| 388 |
SetSignal(0, SIGF_SINGLE); |
| 389 |
Signal(&serial_proc->pr_Task, SIGBREAKF_CTRL_C); |
| 390 |
Wait(SIGF_SINGLE); |
| 391 |
} |
| 392 |
|
| 393 |
// Delete reply port |
| 394 |
if (reply_port) { |
| 395 |
DeleteMsgPort(reply_port); |
| 396 |
reply_port = NULL; |
| 397 |
} |
| 398 |
return noErr; |
| 399 |
} |
| 400 |
|
| 401 |
|
| 402 |
/* |
| 403 |
* Configure serial port with MacOS config word |
| 404 |
*/ |
| 405 |
|
| 406 |
bool ASERDPort::configure(uint16 config) |
| 407 |
{ |
| 408 |
D(bug(" configure %04lx\n", (uint32)config)); |
| 409 |
if (is_parallel) |
| 410 |
return true; |
| 411 |
|
| 412 |
// Set number of stop bits |
| 413 |
switch (config & 0xc000) { |
| 414 |
case stop10: |
| 415 |
control_io->io_StopBits = 1; |
| 416 |
break; |
| 417 |
case stop20: |
| 418 |
control_io->io_StopBits = 2; |
| 419 |
break; |
| 420 |
default: |
| 421 |
return false; |
| 422 |
} |
| 423 |
|
| 424 |
// Set parity mode |
| 425 |
switch (config & 0x3000) { |
| 426 |
case noParity: |
| 427 |
control_io->io_SerFlags &= ~SERF_PARTY_ON; |
| 428 |
break; |
| 429 |
case oddParity: |
| 430 |
control_io->io_SerFlags |= SERF_PARTY_ON | SERF_PARTY_ODD; |
| 431 |
break; |
| 432 |
case evenParity: |
| 433 |
control_io->io_SerFlags |= SERF_PARTY_ON; |
| 434 |
control_io->io_SerFlags &= ~SERF_PARTY_ODD; |
| 435 |
break; |
| 436 |
default: |
| 437 |
return false; |
| 438 |
} |
| 439 |
|
| 440 |
// Set number of data bits |
| 441 |
switch (config & 0x0c00) { |
| 442 |
case data5: |
| 443 |
control_io->io_ReadLen = control_io->io_WriteLen = 5; |
| 444 |
break; |
| 445 |
case data6: |
| 446 |
control_io->io_ReadLen = control_io->io_WriteLen = 6; |
| 447 |
break; |
| 448 |
case data7: |
| 449 |
control_io->io_ReadLen = control_io->io_WriteLen = 7; |
| 450 |
break; |
| 451 |
case data8: |
| 452 |
control_io->io_ReadLen = control_io->io_WriteLen = 8; |
| 453 |
break; |
| 454 |
} |
| 455 |
|
| 456 |
// Set baud rate |
| 457 |
control_io->io_Baud = 115200 / ((config & 0x03ff) + 2); |
| 458 |
return set_params(); |
| 459 |
} |
| 460 |
|
| 461 |
|
| 462 |
/* |
| 463 |
* Set serial handshaking |
| 464 |
*/ |
| 465 |
|
| 466 |
void ASERDPort::set_handshake(uint32 s, bool with_dtr) |
| 467 |
{ |
| 468 |
D(bug(" set_handshake %02x %02x %02x %02x %02x %02x %02x %02x\n", |
| 469 |
ReadMacInt8(s + 0), ReadMacInt8(s + 1), ReadMacInt8(s + 2), ReadMacInt8(s + 3), |
| 470 |
ReadMacInt8(s + 4), ReadMacInt8(s + 5), ReadMacInt8(s + 6), ReadMacInt8(s + 7))); |
| 471 |
|
| 472 |
err_mask = ReadMacInt8(s + shkErrs); |
| 473 |
|
| 474 |
if (is_parallel) { |
| 475 |
|
| 476 |
// Parallel handshake |
| 477 |
if (with_dtr) { |
| 478 |
if (ReadMacInt8(s + shkFCTS) || ReadMacInt8(s + shkFDTR)) |
| 479 |
((IOExtPar *)control_io)->io_ParFlags |= PARF_ACKMODE; |
| 480 |
else |
| 481 |
((IOExtPar *)control_io)->io_ParFlags &= ~PARF_ACKMODE; |
| 482 |
} else { |
| 483 |
if (ReadMacInt8(s + shkFCTS)) |
| 484 |
((IOExtPar *)control_io)->io_ParFlags |= PARF_ACKMODE; |
| 485 |
else |
| 486 |
((IOExtPar *)control_io)->io_ParFlags &= ~PARF_ACKMODE; |
| 487 |
} |
| 488 |
set_par_params(); |
| 489 |
|
| 490 |
} else { |
| 491 |
|
| 492 |
// Serial handshake |
| 493 |
if (ReadMacInt8(s + shkFXOn) || ReadMacInt8(s + shkFInX)) |
| 494 |
control_io->io_SerFlags &= ~SERF_XDISABLED; |
| 495 |
else |
| 496 |
control_io->io_SerFlags |= SERF_XDISABLED; |
| 497 |
|
| 498 |
if (with_dtr) { |
| 499 |
if (ReadMacInt8(s + shkFCTS) || ReadMacInt8(s + shkFDTR)) |
| 500 |
control_io->io_SerFlags |= SERF_7WIRE; |
| 501 |
else |
| 502 |
control_io->io_SerFlags &= ~SERF_7WIRE; |
| 503 |
} else { |
| 504 |
if (ReadMacInt8(s + shkFCTS)) |
| 505 |
control_io->io_SerFlags |= SERF_7WIRE; |
| 506 |
else |
| 507 |
control_io->io_SerFlags &= ~SERF_7WIRE; |
| 508 |
} |
| 509 |
control_io->io_CtlChar = ReadMacInt16(s + shkXOn) << 16; |
| 510 |
set_params(); |
| 511 |
} |
| 512 |
} |
| 513 |
|
| 514 |
|
| 515 |
/* |
| 516 |
* Send message to serial process |
| 517 |
*/ |
| 518 |
|
| 519 |
void ASERDPort::send_to_proc(uint32 what, uint32 pb) |
| 520 |
{ |
| 521 |
D(bug("sending %08lx to serial_proc\n", what)); |
| 522 |
SerMessage msg(what, reply_port); |
| 523 |
msg.pb = pb; |
| 524 |
PutMsg(proc_port, &msg); |
| 525 |
WaitPort(reply_port); |
| 526 |
GetMsg(reply_port); |
| 527 |
D(bug(" sent\n")); |
| 528 |
} |
| 529 |
|
| 530 |
|
| 531 |
/* |
| 532 |
* Query serial port status |
| 533 |
*/ |
| 534 |
|
| 535 |
bool ASERDPort::query(void) |
| 536 |
{ |
| 537 |
send_to_proc(MSG_QUERY); |
| 538 |
return control_io->IOSer.io_Error == 0; |
| 539 |
} |
| 540 |
|
| 541 |
|
| 542 |
/* |
| 543 |
* Set serial parameters |
| 544 |
*/ |
| 545 |
|
| 546 |
bool ASERDPort::set_params(void) |
| 547 |
{ |
| 548 |
// Set/clear RadBoogie |
| 549 |
UBYTE flags = control_io->io_SerFlags; |
| 550 |
if (!(flags & SERF_PARTY_ON) && (flags & SERF_XDISABLED) && control_io->io_ReadLen == 8) |
| 551 |
control_io->io_SerFlags |= SERF_RAD_BOOGIE; |
| 552 |
else |
| 553 |
control_io->io_SerFlags &= ~SERF_RAD_BOOGIE; |
| 554 |
|
| 555 |
// Send message to serial process |
| 556 |
send_to_proc(MSG_SET_PARAMS); |
| 557 |
return control_io->IOSer.io_Error == 0; |
| 558 |
} |
| 559 |
|
| 560 |
|
| 561 |
/* |
| 562 |
* Set parallel parameters |
| 563 |
*/ |
| 564 |
|
| 565 |
bool ASERDPort::set_par_params(void) |
| 566 |
{ |
| 567 |
send_to_proc(MSG_SET_PAR_PARAMS); |
| 568 |
return control_io->IOSer.io_Error == 0; |
| 569 |
} |
| 570 |
|
| 571 |
|
| 572 |
/* |
| 573 |
* Convert AmigaOS error code to MacOS error code, set serdtResult and cum_errors |
| 574 |
*/ |
| 575 |
|
| 576 |
void ASERDPort::conv_error(struct IOExtSer *io, uint32 dt) |
| 577 |
{ |
| 578 |
int16 oserr; |
| 579 |
uint8 cum; |
| 580 |
|
| 581 |
BYTE err = io->IOSer.io_Error; |
| 582 |
if (err == 0 || err == IOERR_NOCMD) { |
| 583 |
oserr = 0; |
| 584 |
cum = 0; |
| 585 |
} else { |
| 586 |
if (is_parallel) { |
| 587 |
oserr = (err_mask & framingErr) ? rcvrErr : 0; |
| 588 |
cum = framingErr; |
| 589 |
} else { |
| 590 |
switch (io->IOSer.io_Error) { |
| 591 |
case SerErr_DetectedBreak: |
| 592 |
oserr = breakRecd; |
| 593 |
cum = breakErr; |
| 594 |
break; |
| 595 |
case SerErr_ParityErr: |
| 596 |
oserr = (err_mask & parityErr) ? rcvrErr : 0; |
| 597 |
cum = parityErr; |
| 598 |
break; |
| 599 |
case SerErr_BufOverflow: |
| 600 |
oserr = (err_mask & swOverrunErr) ? rcvrErr : 0; |
| 601 |
cum = swOverrunErr; |
| 602 |
break; |
| 603 |
case SerErr_LineErr: |
| 604 |
oserr = (err_mask & hwOverrunErr) ? rcvrErr : 0; |
| 605 |
cum = hwOverrunErr; |
| 606 |
break; |
| 607 |
default: |
| 608 |
oserr = (err_mask & framingErr) ? rcvrErr : 0; |
| 609 |
cum = framingErr; |
| 610 |
break; |
| 611 |
} |
| 612 |
} |
| 613 |
} |
| 614 |
|
| 615 |
WriteMacInt32(dt + serdtResult, oserr); |
| 616 |
cum_errors |= cum; |
| 617 |
} |
| 618 |
|
| 619 |
|
| 620 |
/* |
| 621 |
* Process for communication with the serial.device |
| 622 |
*/ |
| 623 |
|
| 624 |
__saveds void ASERDPort::serial_func(void) |
| 625 |
{ |
| 626 |
struct ASERDPort *obj = (ASERDPort *)proc_arg; |
| 627 |
struct MsgPort *proc_port = NULL, *io_port = NULL, *control_port = NULL; |
| 628 |
struct IOExtSer *read_io = NULL, *write_io = NULL, *control_io = NULL; |
| 629 |
uint8 orig_params[sizeof(struct IOExtSer)]; |
| 630 |
bool opened = false; |
| 631 |
ULONG io_mask = 0, proc_port_mask = 0; |
| 632 |
|
| 633 |
// Default: error occured |
| 634 |
obj->proc_error = true; |
| 635 |
|
| 636 |
// Create message port for communication with main task |
| 637 |
proc_port = CreateMsgPort(); |
| 638 |
if (proc_port == NULL) |
| 639 |
goto quit; |
| 640 |
proc_port_mask = 1 << proc_port->mp_SigBit; |
| 641 |
|
| 642 |
// Create message ports for serial.device I/O |
| 643 |
io_port = CreateMsgPort(); |
| 644 |
if (io_port == NULL) |
| 645 |
goto quit; |
| 646 |
io_mask = 1 << io_port->mp_SigBit; |
| 647 |
control_port = CreateMsgPort(); |
| 648 |
if (control_port == NULL) |
| 649 |
goto quit; |
| 650 |
|
| 651 |
// Create IORequests |
| 652 |
read_io = (struct IOExtSer *)CreateIORequest(io_port, sizeof(struct IOExtSer)); |
| 653 |
write_io = (struct IOExtSer *)CreateIORequest(io_port, sizeof(struct IOExtSer)); |
| 654 |
control_io = (struct IOExtSer *)CreateIORequest(control_port, sizeof(struct IOExtSer)); |
| 655 |
if (read_io == NULL || write_io == NULL || control_io == NULL) |
| 656 |
goto quit; |
| 657 |
read_io->IOSer.io_Message.mn_Node.ln_Type = 0; // Avoid CheckIO() bug |
| 658 |
write_io->IOSer.io_Message.mn_Node.ln_Type = 0; |
| 659 |
control_io->IOSer.io_Message.mn_Node.ln_Type = 0; |
| 660 |
|
| 661 |
// Parse device name |
| 662 |
char dev_name[256]; |
| 663 |
ULONG dev_unit; |
| 664 |
if (sscanf(obj->device_name, "%[^/]/%ld", dev_name, &dev_unit) < 2) |
| 665 |
goto quit; |
| 666 |
|
| 667 |
// Open device |
| 668 |
if (obj->is_parallel) |
| 669 |
((IOExtPar *)read_io)->io_ParFlags = PARF_SHARED; |
| 670 |
else |
| 671 |
read_io->io_SerFlags = SERF_SHARED | SERF_7WIRE; |
| 672 |
if (OpenDevice((UBYTE *)dev_name, dev_unit, (struct IORequest *)read_io, 0) || read_io->IOSer.io_Device == NULL) |
| 673 |
goto quit; |
| 674 |
opened = true; |
| 675 |
|
| 676 |
// Copy IORequests |
| 677 |
memcpy(write_io, read_io, sizeof(struct IOExtSer)); |
| 678 |
memcpy(control_io, read_io, sizeof(struct IOExtSer)); |
| 679 |
|
| 680 |
// Attach control_io to control_port and set default values |
| 681 |
control_io->IOSer.io_Message.mn_ReplyPort = control_port; |
| 682 |
if (!obj->is_parallel) { |
| 683 |
control_io->io_CtlChar = SER_DEFAULT_CTLCHAR; |
| 684 |
control_io->io_RBufLen = 64; |
| 685 |
control_io->io_ExtFlags = 0; |
| 686 |
control_io->io_Baud = 9600; |
| 687 |
control_io->io_BrkTime = 250000; |
| 688 |
control_io->io_ReadLen = control_io->io_WriteLen = 8; |
| 689 |
control_io->io_StopBits = 1; |
| 690 |
control_io->io_SerFlags = SERF_SHARED; |
| 691 |
control_io->IOSer.io_Command = SDCMD_SETPARAMS; |
| 692 |
DoIO((struct IORequest *)control_io); |
| 693 |
memcpy(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar)); |
| 694 |
} |
| 695 |
|
| 696 |
// Initialization went well, inform main task |
| 697 |
obj->proc_port = proc_port; |
| 698 |
obj->control_io = control_io; |
| 699 |
obj->proc_error = false; |
| 700 |
Signal(MainTask, SIGF_SINGLE); |
| 701 |
|
| 702 |
// Main loop |
| 703 |
for (;;) { |
| 704 |
|
| 705 |
// Wait for I/O and messages (CTRL_C is used for quitting the task) |
| 706 |
ULONG sig = Wait(proc_port_mask | io_mask | SIGBREAKF_CTRL_C); |
| 707 |
|
| 708 |
// Main task wants to quit us |
| 709 |
if (sig & SIGBREAKF_CTRL_C) |
| 710 |
break; |
| 711 |
|
| 712 |
// Main task sent a command to us |
| 713 |
if (sig & proc_port_mask) { |
| 714 |
struct SerMessage *msg; |
| 715 |
while (msg = (SerMessage *)GetMsg(proc_port)) { |
| 716 |
D(bug("serial_proc received %08lx\n", msg->what)); |
| 717 |
switch (msg->what) { |
| 718 |
case MSG_QUERY: |
| 719 |
control_io->IOSer.io_Command = SDCMD_QUERY; |
| 720 |
DoIO((struct IORequest *)control_io); |
| 721 |
D(bug(" query returned %08lx, actual %08lx\n", control_io->IOSer.io_Error, control_io->IOSer.io_Actual)); |
| 722 |
break; |
| 723 |
|
| 724 |
case MSG_SET_PARAMS: |
| 725 |
// Only send SDCMD_SETPARAMS when configuration has changed |
| 726 |
if (memcmp(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar))) { |
| 727 |
memcpy(orig_params, &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar)); |
| 728 |
memcpy(&(read_io->io_CtlChar), &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar)); |
| 729 |
memcpy(&(write_io->io_CtlChar), &(control_io->io_CtlChar), (uint8 *)&(control_io->io_Status) - (uint8 *)&(control_io->io_CtlChar)); |
| 730 |
control_io->IOSer.io_Command = SDCMD_SETPARAMS; |
| 731 |
D(bug(" params %08lx %08lx %08lx %08lx %08lx %08lx\n", control_io->io_CtlChar, control_io->io_RBufLen, control_io->io_ExtFlags, control_io->io_Baud, control_io->io_BrkTime, *(uint32 *)((uint8 *)control_io + 76))); |
| 732 |
DoIO((struct IORequest *)control_io); |
| 733 |
D(bug(" set_parms returned %08lx\n", control_io->IOSer.io_Error)); |
| 734 |
} |
| 735 |
break; |
| 736 |
|
| 737 |
case MSG_SET_PAR_PARAMS: |
| 738 |
control_io->IOSer.io_Command = PDCMD_SETPARAMS; |
| 739 |
DoIO((struct IORequest *)control_io); |
| 740 |
D(bug(" set_par_parms returned %08lx\n", control_io->IOSer.io_Error)); |
| 741 |
break; |
| 742 |
|
| 743 |
case MSG_BREAK: |
| 744 |
control_io->IOSer.io_Command = SDCMD_BREAK; |
| 745 |
DoIO((struct IORequest *)control_io); |
| 746 |
D(bug(" break returned %08lx\n", control_io->IOSer.io_Error)); |
| 747 |
break; |
| 748 |
|
| 749 |
case MSG_RESET: |
| 750 |
control_io->IOSer.io_Command = CMD_RESET; |
| 751 |
DoIO((struct IORequest *)control_io); |
| 752 |
D(bug(" reset returned %08lx\n", control_io->IOSer.io_Error)); |
| 753 |
break; |
| 754 |
|
| 755 |
case MSG_KILL_IO: |
| 756 |
AbortIO((struct IORequest *)read_io); |
| 757 |
AbortIO((struct IORequest *)write_io); |
| 758 |
WaitIO((struct IORequest *)read_io); |
| 759 |
WaitIO((struct IORequest *)write_io); |
| 760 |
obj->read_pending = obj->write_pending = false; |
| 761 |
obj->read_done = obj->write_done = false; |
| 762 |
break; |
| 763 |
|
| 764 |
case MSG_PRIME_IN: |
| 765 |
read_io->IOSer.io_Message.mn_Node.ln_Name = (char *)msg->pb; |
| 766 |
read_io->IOSer.io_Data = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer)); |
| 767 |
read_io->IOSer.io_Length = ReadMacInt32(msg->pb + ioReqCount); |
| 768 |
read_io->IOSer.io_Actual = 0; |
| 769 |
read_io->IOSer.io_Command = CMD_READ; |
| 770 |
D(bug("serial_proc receiving %ld bytes from %08lx\n", read_io->IOSer.io_Length, read_io->IOSer.io_Data)); |
| 771 |
SendIO((struct IORequest *)read_io); |
| 772 |
break; |
| 773 |
|
| 774 |
case MSG_PRIME_OUT: { |
| 775 |
write_io->IOSer.io_Message.mn_Node.ln_Name = (char *)msg->pb; |
| 776 |
write_io->IOSer.io_Data = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer)); |
| 777 |
write_io->IOSer.io_Length = ReadMacInt32(msg->pb + ioReqCount); |
| 778 |
write_io->IOSer.io_Actual = 0; |
| 779 |
write_io->IOSer.io_Command = CMD_WRITE; |
| 780 |
D(bug("serial_proc transmitting %ld bytes from %08lx\n", write_io->IOSer.io_Length, write_io->IOSer.io_Data)); |
| 781 |
#if MONITOR |
| 782 |
bug("Sending serial data:\n"); |
| 783 |
uint8 *adr = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer)); |
| 784 |
for (int i=0; i<len; i++) { |
| 785 |
bug("%02lx ", adr[i]); |
| 786 |
} |
| 787 |
bug("\n"); |
| 788 |
#endif |
| 789 |
SendIO((struct IORequest *)write_io); |
| 790 |
break; |
| 791 |
} |
| 792 |
} |
| 793 |
D(bug(" serial_proc replying\n")); |
| 794 |
ReplyMsg(msg); |
| 795 |
} |
| 796 |
} |
| 797 |
|
| 798 |
// I/O operation completed |
| 799 |
if (sig & io_mask) { |
| 800 |
struct IOExtSer *io; |
| 801 |
while (io = (struct IOExtSer *)GetMsg(io_port)) { |
| 802 |
if (io == read_io) { |
| 803 |
D(bug("read_io complete, %ld bytes received, error %ld\n", read_io->IOSer.io_Actual, read_io->IOSer.io_Error)); |
| 804 |
uint32 pb = (uint32)read_io->IOSer.io_Message.mn_Node.ln_Name; |
| 805 |
#if MONITOR |
| 806 |
bug("Receiving serial data:\n"); |
| 807 |
uint8 *adr = Mac2HostAddr(ReadMacInt32(msg->pb + ioBuffer)); |
| 808 |
for (int i=0; i<read_io->IOSer.io_Actual; i++) { |
| 809 |
bug("%02lx ", adr[i]); |
| 810 |
} |
| 811 |
bug("\n"); |
| 812 |
#endif |
| 813 |
WriteMacInt32(pb + ioActCount, read_io->IOSer.io_Actual); |
| 814 |
obj->conv_error(read_io, obj->input_dt); |
| 815 |
obj->read_done = true; |
| 816 |
SetInterruptFlag(INTFLAG_SERIAL); |
| 817 |
TriggerInterrupt(); |
| 818 |
} else if (io == write_io) { |
| 819 |
D(bug("write_io complete, %ld bytes sent, error %ld\n", write_io->IOSer.io_Actual, write_io->IOSer.io_Error)); |
| 820 |
uint32 pb = (uint32)write_io->IOSer.io_Message.mn_Node.ln_Name; |
| 821 |
WriteMacInt32(pb + ioActCount, write_io->IOSer.io_Actual); |
| 822 |
obj->conv_error(write_io, obj->output_dt); |
| 823 |
obj->write_done = true; |
| 824 |
SetInterruptFlag(INTFLAG_SERIAL); |
| 825 |
TriggerInterrupt(); |
| 826 |
} |
| 827 |
} |
| 828 |
} |
| 829 |
} |
| 830 |
quit: |
| 831 |
|
| 832 |
// Close everything |
| 833 |
if (opened) { |
| 834 |
if (CheckIO((struct IORequest *)write_io) == 0) { |
| 835 |
AbortIO((struct IORequest *)write_io); |
| 836 |
WaitIO((struct IORequest *)write_io); |
| 837 |
} |
| 838 |
if (CheckIO((struct IORequest *)read_io) == 0) { |
| 839 |
AbortIO((struct IORequest *)read_io); |
| 840 |
WaitIO((struct IORequest *)read_io); |
| 841 |
} |
| 842 |
CloseDevice((struct IORequest *)read_io); |
| 843 |
} |
| 844 |
if (control_io) |
| 845 |
DeleteIORequest(control_io); |
| 846 |
if (write_io) |
| 847 |
DeleteIORequest(write_io); |
| 848 |
if (read_io) |
| 849 |
DeleteIORequest(read_io); |
| 850 |
if (control_port) |
| 851 |
DeleteMsgPort(control_port); |
| 852 |
if (io_port) |
| 853 |
DeleteMsgPort(io_port); |
| 854 |
|
| 855 |
// Send signal to main task to confirm termination |
| 856 |
Forbid(); |
| 857 |
Signal(MainTask, SIGF_SINGLE); |
| 858 |
} |
