Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/i386/include/si.h
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1 /* 2 * Device driver for Specialix range (SI/XIO) of serial line multiplexors. 3 * 'C' definitions for Specialix serial multiplex driver. 4 * 5 * Copyright (C) 1990, 1992, 1998 Specialix International, 6 * Copyright (C) 1993, Andy Rutter <andy@acronym.co.uk> 7 * Copyright (C) 1995, Peter Wemm <peter@netplex.com.au> 8 * 9 * Derived from: SunOS 4.x version 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notices, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notices, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 3. All advertising materials mentioning features or use of this software 20 * must display the following acknowledgement: 21 * This product includes software developed by Andy Rutter of 22 * Advanced Methods and Tools Ltd. based on original information 23 * from Specialix International. 24 * 4. Neither the name of Advanced Methods and Tools, nor Specialix 25 * International may be used to endorse or promote products derived from 26 * this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY ``AS IS'' AND ANY EXPRESS OR IMPLIED 29 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 30 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN 31 * NO EVENT SHALL THE AUTHORS BE LIABLE. 32 * 33 * $FreeBSD$ 34 */ 35 36 #include <sys/callout.h> 37 38 /* 39 * Macro to turn a device number into various parameters, and test for 40 * CONTROL device. 41 * max of 4 controllers with up to 32 ports per controller. 42 * minor device allocation is: 43 * adapter port 44 * 0 0-31 45 * 1 32-63 46 * 2 64-95 47 * 3 96-127 48 */ 49 #define SI_MAXPORTPERCARD 32 50 #define SI_MAXCONTROLLER 4 51 52 53 /* 54 * breakup of minor device number: 55 * lowest 5 bits: port number on card 0x1f 56 * next 2 bits: card number 0x60 57 * top bit: callout 0x80 58 * next 8 bits is the major number 59 * next 2 bits select initial/lock states 60 * next 1 bit selects the master control device 61 */ 62 63 #define SI_PORT_MASK 0x1f 64 #define SI_CARD_MASK 0x60 65 #define SI_TTY_MASK 0x7f 66 #define SI_CALLOUT_MASK 0x80 67 #define SI_INIT_STATE_MASK 0x10000 68 #define SI_LOCK_STATE_MASK 0x20000 69 #define SI_STATE_MASK 0x30000 70 #define SI_CONTROLDEV_MASK 0x40000 71 #define SI_SPECIAL_MASK 0x70000 72 73 #define SI_CARDSHIFT 5 74 #define SI_PORT(m) (m & SI_PORT_MASK) 75 #define SI_CARD(m) ((m & SI_CARD_MASK) >> SI_CARDSHIFT) 76 #define SI_TTY(m) (m & SI_TTY_MASK) 77 78 #define IS_CALLOUT(m) (m & SI_CALLOUT_MASK) 79 #define IS_STATE(m) (m & SI_STATE_MASK) 80 #define IS_CONTROLDEV(m) (m & SI_CONTROLDEV_MASK) 81 #define IS_SPECIAL(m) (m & SI_SPECIAL_MASK) 82 83 #define MINOR2SC(m) (&si_softc[SI_CARD(m)]) 84 #define MINOR2PP(m) (MINOR2SC((m))->sc_ports + SI_PORT((m))) 85 #define MINOR2TP(m) (MINOR2PP((m))->sp_tty) 86 #define TP2PP(tp) (MINOR2PP(SI_TTY(minor((tp)->t_dev)))) 87 88 /* Adapter types */ 89 #define SIEMPTY 0 90 #define SIHOST 1 91 #define SIMCA 2 92 #define SIHOST2 3 93 #define SIEISA 4 94 #define SIPCI 5 95 #define SIJETPCI 6 96 #define SIJETISA 7 97 98 #define SI_ISJET(x) (((x) == SIJETPCI) || ((x) == SIJETISA)) 99 100 /* Buffer parameters */ 101 #define SI_BUFFERSIZE 256 102 103 typedef unsigned char BYTE; /* Type cast for unsigned 8 bit */ 104 typedef unsigned short WORD; /* Type cast for unsigned 16 bit */ 105 106 107 /* 108 * Hardware `registers', stored in the shared memory. 109 * These are related to the firmware running on the Z280. 110 */ 111 112 struct si_reg { 113 BYTE initstat; 114 BYTE memsize; 115 WORD int_count; 116 WORD revision; 117 BYTE rx_int_count; /* isr_count on Jet */ 118 BYTE main_count; /* spare on Z-280 */ 119 WORD int_pending; 120 WORD int_counter; 121 BYTE int_scounter; 122 BYTE res[0x80 - 13]; 123 }; 124 125 /* 126 * Per module control structure, stored in shared memory. 127 */ 128 struct si_module { 129 WORD sm_next; /* Next module */ 130 BYTE sm_type; /* Number of channels */ 131 BYTE sm_number; /* Module number on cable */ 132 BYTE sm_dsr; /* Private dsr copy */ 133 BYTE sm_res[0x80 - 5]; /* Reserve space to 128 bytes */ 134 }; 135 136 /* 137 * The 'next' pointer & with 0x7fff + SI base addres give 138 * the address of the next module block if fitted. (else 0) 139 * Note that next points to the TX buffer so 0x60 must be 140 * subtracted to find the true base. 141 */ 142 #define TA4 0x00 143 #define TA8 0x08 144 #define TA4_ASIC 0x0A 145 #define TA8_ASIC 0x0B 146 #define MTA 0x28 147 #define SXDC 0x48 148 149 /* 150 * Per channel(port) control structure, stored in shared memory. 151 */ 152 struct si_channel { 153 /* 154 * Generic stuff 155 */ 156 WORD next; /* Next Channel */ 157 WORD addr_uart; /* Uart address */ 158 WORD module; /* address of module struct */ 159 BYTE type; /* Uart type */ 160 BYTE fill; 161 /* 162 * Uart type specific stuff 163 */ 164 BYTE x_status; /* XON / XOFF status */ 165 BYTE c_status; /* cooking status */ 166 BYTE hi_rxipos; /* stuff into rx buff */ 167 BYTE hi_rxopos; /* stuff out of rx buffer */ 168 BYTE hi_txopos; /* Stuff into tx ptr */ 169 BYTE hi_txipos; /* ditto out */ 170 BYTE hi_stat; /* Command register */ 171 BYTE dsr_bit; /* Magic bit for DSR */ 172 BYTE txon; /* TX XON char */ 173 BYTE txoff; /* ditto XOFF */ 174 BYTE rxon; /* RX XON char */ 175 BYTE rxoff; /* ditto XOFF */ 176 BYTE hi_mr1; /* mode 1 image */ 177 BYTE hi_mr2; /* mode 2 image */ 178 BYTE hi_csr; /* clock register */ 179 BYTE hi_op; /* Op control */ 180 BYTE hi_ip; /* Input pins */ 181 BYTE hi_state; /* status */ 182 BYTE hi_prtcl; /* Protocol */ 183 BYTE hi_txon; /* host copy tx xon stuff */ 184 BYTE hi_txoff; 185 BYTE hi_rxon; 186 BYTE hi_rxoff; 187 BYTE close_prev; /* Was channel previously closed */ 188 BYTE hi_break; /* host copy break process */ 189 BYTE break_state; /* local copy ditto */ 190 BYTE hi_mask; /* Mask for CS7 etc. */ 191 BYTE mask_z280; /* Z280's copy */ 192 BYTE res[0x60 - 36]; 193 BYTE hi_txbuf[SI_BUFFERSIZE]; 194 BYTE hi_rxbuf[SI_BUFFERSIZE]; 195 BYTE res1[0xA0]; 196 }; 197 198 /* 199 * Register definitions 200 */ 201 202 /* 203 * Break input control register definitions 204 */ 205 #define BR_IGN 0x01 /* Ignore any received breaks */ 206 #define BR_INT 0x02 /* Interrupt on received break */ 207 #define BR_PARMRK 0x04 /* Enable parmrk parity error processing */ 208 #define BR_PARIGN 0x08 /* Ignore chars with parity errors */ 209 210 /* 211 * Protocol register provided by host for XON/XOFF and cooking 212 */ 213 #define SP_TANY 0x01 /* Tx XON any char */ 214 #define SP_TXEN 0x02 /* Tx XON/XOFF enabled */ 215 #define SP_CEN 0x04 /* Cooking enabled */ 216 #define SP_RXEN 0x08 /* Rx XON/XOFF enabled */ 217 #define SP_DCEN 0x20 /* DCD / DTR check */ 218 #define SP_PAEN 0x80 /* Parity checking enabled */ 219 220 /* 221 * HOST STATUS / COMMAND REGISTER 222 */ 223 #define IDLE_OPEN 0x00 /* Default mode, TX and RX polled 224 buffer updated etc */ 225 #define LOPEN 0x02 /* Local open command (no modem ctl */ 226 #define MOPEN 0x04 /* Open and monitor modem lines (blocks 227 for DCD */ 228 #define MPEND 0x06 /* Wating for DCD */ 229 #define CONFIG 0x08 /* Channel config has changed */ 230 #define CLOSE 0x0A /* Close channel */ 231 #define SBREAK 0x0C /* Start break */ 232 #define EBREAK 0x0E /* End break */ 233 #define IDLE_CLOSE 0x10 /* Closed channel */ 234 #define IDLE_BREAK 0x12 /* In a break */ 235 #define FCLOSE 0x14 /* Force a close */ 236 #define RESUME 0x16 /* Clear a pending xoff */ 237 #define WFLUSH 0x18 /* Flush output buffer */ 238 #define RFLUSH 0x1A /* Flush input buffer */ 239 240 /* 241 * Host status register 242 */ 243 #define ST_BREAK 0x01 /* Break received (clear with config) */ 244 245 /* 246 * OUTPUT PORT REGISTER 247 */ 248 #define OP_CTS 0x01 /* Enable CTS */ 249 #define OP_DSR 0x02 /* Enable DSR */ 250 /* 251 * INPUT PORT REGISTER 252 */ 253 #define IP_DCD 0x04 /* DCD High */ 254 #define IP_DTR 0x20 /* DTR High */ 255 #define IP_RTS 0x02 /* RTS High */ 256 #define IP_RI 0x40 /* RI High */ 257 258 /* 259 * Mode register and uart specific stuff 260 */ 261 /* 262 * MODE REGISTER 1 263 */ 264 #define MR1_5_BITS 0x00 265 #define MR1_6_BITS 0x01 266 #define MR1_7_BITS 0x02 267 #define MR1_8_BITS 0x03 268 /* 269 * Parity 270 */ 271 #define MR1_ODD 0x04 272 #define MR1_EVEN 0x00 273 /* 274 * Parity mode 275 */ 276 #define MR1_WITH 0x00 277 #define MR1_FORCE 0x08 278 #define MR1_NONE 0x10 279 #define MR1_SPECIAL 0x18 280 /* 281 * Error mode 282 */ 283 #define MR1_CHAR 0x00 284 #define MR1_BLOCK 0x20 285 /* 286 * Request to send line automatic control 287 */ 288 #define MR1_CTSCONT 0x80 289 290 /* 291 * MODE REGISTER 2 292 */ 293 /* 294 * Number of stop bits 295 */ 296 #define MR2_1_STOP 0x07 297 #define MR2_2_STOP 0x0F 298 /* 299 * Clear to send automatic testing before character sent 300 */ 301 #define MR2_RTSCONT 0x10 302 /* 303 * Reset RTS automatically after sending character? 304 */ 305 #define MR2_CTSCONT 0x20 306 /* 307 * Channel mode 308 */ 309 #define MR2_NORMAL 0x00 310 #define MR2_AUTO 0x40 311 #define MR2_LOCAL 0x80 312 #define MR2_REMOTE 0xC0 313 314 /* 315 * CLOCK SELECT REGISTER - this and the code assumes ispeed == ospeed 316 */ 317 /* 318 * Clocking rates are in lower and upper nibbles.. R = upper, T = lower 319 */ 320 #define CLK75 0x0 321 #define CLK110 0x1 /* 110 on XIO!! */ 322 #define CLK38400 0x2 /* out of sequence */ 323 #define CLK150 0x3 324 #define CLK300 0x4 325 #define CLK600 0x5 326 #define CLK1200 0x6 327 #define CLK2000 0x7 328 #define CLK2400 0x8 329 #define CLK4800 0x9 330 #define CLK7200 0xa /* unchecked */ 331 #define CLK9600 0xb 332 #define CLK19200 0xc 333 #define CLK57600 0xd 334 335 /* 336 * Per-port (channel) soft information structure, stored in the driver. 337 * This is visible via ioctl()'s. 338 */ 339 struct si_port { 340 volatile struct si_channel *sp_ccb; 341 struct tty *sp_tty; 342 int sp_pend; /* pending command */ 343 int sp_last_hi_ip; /* cached DCD */ 344 int sp_state; 345 int sp_active_out; /* callout is open */ 346 int sp_dtr_wait; /* DTR holddown in hz */ 347 int sp_delta_overflows; 348 u_int sp_wopeners; /* # procs waiting DCD */ 349 u_char sp_hotchar; /* ldisc specific ASAP char */ 350 /* Initial state. */ 351 struct termios sp_iin; 352 struct termios sp_iout; 353 /* Lock state. */ 354 struct termios sp_lin; 355 struct termios sp_lout; 356 struct callout_handle lstart_ch;/* For canceling our timeout */ 357 #ifdef SI_DEBUG 358 int sp_debug; /* debug mask */ 359 #endif 360 }; 361 362 /* sp_state */ 363 #define SS_CLOSED 0x0000 364 #define SS_OPEN 0x0001 /* Port is active */ 365 /* 0x0002 -- */ 366 /* 0x0004 -- */ 367 /* 0x0008 -- */ 368 /* 0x0010 -- */ 369 /* 0x0020 -- */ 370 /* 0x0040 -- */ 371 /* 0x0080 -- */ 372 #define SS_LSTART 0x0100 /* lstart timeout pending */ 373 #define SS_INLSTART 0x0200 /* running an lstart induced t_oproc */ 374 #define SS_CLOSING 0x0400 /* in the middle of a siclose() */ 375 /* 0x0800 -- */ 376 #define SS_WAITWRITE 0x1000 377 #define SS_BLOCKWRITE 0x2000 378 #define SS_DTR_OFF 0x4000 /* DTR held off */ 379 380 /* 381 * Command post flags 382 */ 383 #define SI_NOWAIT 0x00 /* Don't wait for command */ 384 #define SI_WAIT 0x01 /* Wait for complete */ 385 386 /* 387 * Extensive debugging stuff - manipulated using siconfig(8) 388 */ 389 #define DBG_ENTRY 0x00000001 390 #define DBG_DRAIN 0x00000002 391 #define DBG_OPEN 0x00000004 392 #define DBG_CLOSE 0x00000008 393 #define DBG_READ 0x00000010 394 #define DBG_WRITE 0x00000020 395 #define DBG_PARAM 0x00000040 396 #define DBG_INTR 0x00000080 397 #define DBG_IOCTL 0x00000100 398 /* 0x00000200 */ 399 #define DBG_SELECT 0x00000400 400 #define DBG_OPTIM 0x00000800 401 #define DBG_START 0x00001000 402 #define DBG_EXIT 0x00002000 403 #define DBG_FAIL 0x00004000 404 #define DBG_STOP 0x00008000 405 #define DBG_AUTOBOOT 0x00010000 406 #define DBG_MODEM 0x00020000 407 #define DBG_DOWNLOAD 0x00040000 408 #define DBG_LSTART 0x00080000 409 #define DBG_POLL 0x00100000 410 #define DBG_ALL 0xffffffff 411 412 /* 413 * SI ioctls 414 */ 415 /* 416 * struct for use by Specialix ioctls - used by siconfig(8) 417 */ 418 typedef struct { 419 unsigned char 420 sid_port:5, /* 0 - 31 ports per card */ 421 sid_card:2, /* 0 - 3 cards */ 422 sid_control:1; /* controlling device (all cards) */ 423 } sidev_t; 424 struct si_tcsi { 425 sidev_t tc_dev; 426 union { 427 int x_int; 428 int x_dbglvl; 429 } tc_action; 430 #define tc_card tc_dev.sid_card 431 #define tc_port tc_dev.sid_port 432 #define tc_int tc_action.x_int 433 #define tc_dbglvl tc_action.x_dbglvl 434 }; 435 436 struct si_pstat { 437 sidev_t tc_dev; 438 union { 439 struct si_port x_siport; 440 struct si_channel x_ccb; 441 struct tty x_tty; 442 } tc_action; 443 #define tc_siport tc_action.x_siport 444 #define tc_ccb tc_action.x_ccb 445 #define tc_tty tc_action.x_tty 446 }; 447 448 #define IOCTL_MIN 96 449 #define TCSIDEBUG _IOW('S', 96, struct si_tcsi) /* Toggle debug */ 450 #define TCSIRXIT _IOW('S', 97, struct si_tcsi) /* RX int throttle */ 451 #define TCSIIT _IOW('S', 98, struct si_tcsi) /* TX int throttle */ 452 /* 99 defunct */ 453 /* 100 defunct */ 454 /* 101 defunct */ 455 /* 102 defunct */ 456 /* 103 defunct */ 457 /* 104 defunct */ 458 #define TCSISTATE _IOWR('S', 105, struct si_tcsi) /* get current state of RTS 459 DCD and DTR pins */ 460 /* 106 defunct */ 461 #define TCSIPORTS _IOR('S', 107, int) /* Number of ports found */ 462 #define TCSISDBG_LEVEL _IOW('S', 108, struct si_tcsi) /* equivalent of TCSIDEBUG which sets a 463 * particular debug level (DBG_??? bit 464 * mask), default is 0xffff */ 465 #define TCSIGDBG_LEVEL _IOWR('S', 109, struct si_tcsi) 466 #define TCSIGRXIT _IOWR('S', 110, struct si_tcsi) 467 #define TCSIGIT _IOWR('S', 111, struct si_tcsi) 468 /* 112 defunct */ 469 /* 113 defunct */ 470 /* 114 defunct */ 471 /* 115 defunct */ 472 /* 116 defunct */ 473 /* 117 defunct */ 474 475 #define TCSISDBG_ALL _IOW('S', 118, int) /* set global debug level */ 476 #define TCSIGDBG_ALL _IOR('S', 119, int) /* get global debug level */ 477 478 /* 120 defunct */ 479 /* 121 defunct */ 480 /* 122 defunct */ 481 /* 123 defunct */ 482 #define TCSIMODULES _IOR('S', 124, int) /* Number of modules found */ 483 484 /* Various stats and monitoring hooks per tty device */ 485 #define TCSI_PORT _IOWR('S', 125, struct si_pstat) /* get si_port */ 486 #define TCSI_CCB _IOWR('S', 126, struct si_pstat) /* get si_ccb */ 487 #define TCSI_TTY _IOWR('S', 127, struct si_pstat) /* get tty struct */ 488 489 #define IOCTL_MAX 127 490 491 #define IS_SI_IOCTL(cmd) ((u_int)((cmd)&0xff00) == ('S'<<8) && \ 492 (u_int)((cmd)&0xff) >= IOCTL_MIN && \ 493 (u_int)((cmd)&0xff) <= IOCTL_MAX) 494 495 #define CONTROLDEV "/dev/si_control"
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