Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/si/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) ((struct si_softc *)devclass_get_softc(si_devclass, 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 /* Buffer parameters */ 89 #define SI_BUFFERSIZE 256 90 91 typedef unsigned char BYTE; /* Type cast for unsigned 8 bit */ 92 typedef unsigned short WORD; /* Type cast for unsigned 16 bit */ 93 94 95 /* 96 * Hardware `registers', stored in the shared memory. 97 * These are related to the firmware running on the Z280. 98 */ 99 100 struct si_reg { 101 BYTE initstat; 102 BYTE memsize; 103 WORD int_count; 104 WORD revision; 105 BYTE rx_int_count; /* isr_count on Jet */ 106 BYTE main_count; /* spare on Z-280 */ 107 WORD int_pending; 108 WORD int_counter; 109 BYTE int_scounter; 110 BYTE res[0x80 - 13]; 111 }; 112 113 /* 114 * Per module control structure, stored in shared memory. 115 */ 116 struct si_module { 117 WORD sm_next; /* Next module */ 118 BYTE sm_type; /* Number of channels */ 119 BYTE sm_number; /* Module number on cable */ 120 BYTE sm_dsr; /* Private dsr copy */ 121 BYTE sm_res[0x80 - 5]; /* Reserve space to 128 bytes */ 122 }; 123 124 /* 125 * The 'next' pointer & with 0x7fff + SI base addres give 126 * the address of the next module block if fitted. (else 0) 127 * Note that next points to the TX buffer so 0x60 must be 128 * subtracted to find the true base. 129 */ 130 #define TA4 0x00 131 #define TA8 0x08 132 #define TA4_ASIC 0x0A 133 #define TA8_ASIC 0x0B 134 #define MTA 0x28 135 #define SXDC 0x48 136 137 /* 138 * Per channel(port) control structure, stored in shared memory. 139 */ 140 struct si_channel { 141 /* 142 * Generic stuff 143 */ 144 WORD next; /* Next Channel */ 145 WORD addr_uart; /* Uart address */ 146 WORD module; /* address of module struct */ 147 BYTE type; /* Uart type */ 148 BYTE fill; 149 /* 150 * Uart type specific stuff 151 */ 152 BYTE x_status; /* XON / XOFF status */ 153 BYTE c_status; /* cooking status */ 154 BYTE hi_rxipos; /* stuff into rx buff */ 155 BYTE hi_rxopos; /* stuff out of rx buffer */ 156 BYTE hi_txopos; /* Stuff into tx ptr */ 157 BYTE hi_txipos; /* ditto out */ 158 BYTE hi_stat; /* Command register */ 159 BYTE dsr_bit; /* Magic bit for DSR */ 160 BYTE txon; /* TX XON char */ 161 BYTE txoff; /* ditto XOFF */ 162 BYTE rxon; /* RX XON char */ 163 BYTE rxoff; /* ditto XOFF */ 164 BYTE hi_mr1; /* mode 1 image */ 165 BYTE hi_mr2; /* mode 2 image */ 166 BYTE hi_csr; /* clock register */ 167 BYTE hi_op; /* Op control */ 168 BYTE hi_ip; /* Input pins */ 169 BYTE hi_state; /* status */ 170 BYTE hi_prtcl; /* Protocol */ 171 BYTE hi_txon; /* host copy tx xon stuff */ 172 BYTE hi_txoff; 173 BYTE hi_rxon; 174 BYTE hi_rxoff; 175 BYTE close_prev; /* Was channel previously closed */ 176 BYTE hi_break; /* host copy break process */ 177 BYTE break_state; /* local copy ditto */ 178 BYTE hi_mask; /* Mask for CS7 etc. */ 179 BYTE mask_z280; /* Z280's copy */ 180 BYTE res[0x60 - 36]; 181 BYTE hi_txbuf[SI_BUFFERSIZE]; 182 BYTE hi_rxbuf[SI_BUFFERSIZE]; 183 BYTE res1[0xA0]; 184 }; 185 186 /* 187 * Register definitions 188 */ 189 190 /* 191 * Break input control register definitions 192 */ 193 #define BR_IGN 0x01 /* Ignore any received breaks */ 194 #define BR_INT 0x02 /* Interrupt on received break */ 195 #define BR_PARMRK 0x04 /* Enable parmrk parity error processing */ 196 #define BR_PARIGN 0x08 /* Ignore chars with parity errors */ 197 198 /* 199 * Protocol register provided by host for XON/XOFF and cooking 200 */ 201 #define SP_TANY 0x01 /* Tx XON any char */ 202 #define SP_TXEN 0x02 /* Tx XON/XOFF enabled */ 203 #define SP_CEN 0x04 /* Cooking enabled */ 204 #define SP_RXEN 0x08 /* Rx XON/XOFF enabled */ 205 #define SP_DCEN 0x20 /* DCD / DTR check */ 206 #define SP_PAEN 0x80 /* Parity checking enabled */ 207 208 /* 209 * HOST STATUS / COMMAND REGISTER 210 */ 211 #define IDLE_OPEN 0x00 /* Default mode, TX and RX polled 212 buffer updated etc */ 213 #define LOPEN 0x02 /* Local open command (no modem ctl */ 214 #define MOPEN 0x04 /* Open and monitor modem lines (blocks 215 for DCD */ 216 #define MPEND 0x06 /* Wating for DCD */ 217 #define CONFIG 0x08 /* Channel config has changed */ 218 #define CLOSE 0x0A /* Close channel */ 219 #define SBREAK 0x0C /* Start break */ 220 #define EBREAK 0x0E /* End break */ 221 #define IDLE_CLOSE 0x10 /* Closed channel */ 222 #define IDLE_BREAK 0x12 /* In a break */ 223 #define FCLOSE 0x14 /* Force a close */ 224 #define RESUME 0x16 /* Clear a pending xoff */ 225 #define WFLUSH 0x18 /* Flush output buffer */ 226 #define RFLUSH 0x1A /* Flush input buffer */ 227 228 /* 229 * Host status register 230 */ 231 #define ST_BREAK 0x01 /* Break received (clear with config) */ 232 233 /* 234 * OUTPUT PORT REGISTER 235 */ 236 #define OP_CTS 0x01 /* Enable CTS */ 237 #define OP_DSR 0x02 /* Enable DSR */ 238 /* 239 * INPUT PORT REGISTER 240 */ 241 #define IP_DCD 0x04 /* DCD High */ 242 #define IP_DTR 0x20 /* DTR High */ 243 #define IP_RTS 0x02 /* RTS High */ 244 #define IP_RI 0x40 /* RI High */ 245 246 /* 247 * Mode register and uart specific stuff 248 */ 249 /* 250 * MODE REGISTER 1 251 */ 252 #define MR1_5_BITS 0x00 253 #define MR1_6_BITS 0x01 254 #define MR1_7_BITS 0x02 255 #define MR1_8_BITS 0x03 256 /* 257 * Parity 258 */ 259 #define MR1_ODD 0x04 260 #define MR1_EVEN 0x00 261 /* 262 * Parity mode 263 */ 264 #define MR1_WITH 0x00 265 #define MR1_FORCE 0x08 266 #define MR1_NONE 0x10 267 #define MR1_SPECIAL 0x18 268 /* 269 * Error mode 270 */ 271 #define MR1_CHAR 0x00 272 #define MR1_BLOCK 0x20 273 /* 274 * Request to send line automatic control 275 */ 276 #define MR1_CTSCONT 0x80 277 278 /* 279 * MODE REGISTER 2 280 */ 281 /* 282 * Number of stop bits 283 */ 284 #define MR2_1_STOP 0x07 285 #define MR2_2_STOP 0x0F 286 /* 287 * Clear to send automatic testing before character sent 288 */ 289 #define MR2_RTSCONT 0x10 290 /* 291 * Reset RTS automatically after sending character? 292 */ 293 #define MR2_CTSCONT 0x20 294 /* 295 * Channel mode 296 */ 297 #define MR2_NORMAL 0x00 298 #define MR2_AUTO 0x40 299 #define MR2_LOCAL 0x80 300 #define MR2_REMOTE 0xC0 301 302 /* 303 * CLOCK SELECT REGISTER - this and the code assumes ispeed == ospeed 304 */ 305 /* 306 * Clocking rates are in lower and upper nibbles.. R = upper, T = lower 307 */ 308 #define CLK75 0x0 309 #define CLK110 0x1 /* 110 on XIO!! */ 310 #define CLK38400 0x2 /* out of sequence */ 311 #define CLK150 0x3 312 #define CLK300 0x4 313 #define CLK600 0x5 314 #define CLK1200 0x6 315 #define CLK2000 0x7 316 #define CLK2400 0x8 317 #define CLK4800 0x9 318 #define CLK7200 0xa /* unchecked */ 319 #define CLK9600 0xb 320 #define CLK19200 0xc 321 #define CLK57600 0xd 322 323 /* 324 * Per-port (channel) soft information structure, stored in the driver. 325 * This is visible via ioctl()'s. 326 */ 327 struct si_port { 328 volatile struct si_channel *sp_ccb; 329 struct tty *sp_tty; 330 int sp_pend; /* pending command */ 331 int sp_last_hi_ip; /* cached DCD */ 332 int sp_state; 333 int sp_active_out; /* callout is open */ 334 int sp_delta_overflows; 335 u_int sp_wopeners; /* # procs waiting DCD */ 336 /* Initial state. */ 337 struct termios sp_iin; 338 struct termios sp_iout; 339 /* Lock state. */ 340 struct termios sp_lin; 341 struct termios sp_lout; 342 struct callout_handle lstart_ch;/* For canceling our timeout */ 343 #ifdef SI_DEBUG 344 int sp_debug; /* debug mask */ 345 #endif 346 }; 347 348 /* sp_state */ 349 #define SS_CLOSED 0x0000 350 #define SS_OPEN 0x0001 /* Port is active */ 351 /* 0x0002 -- */ 352 /* 0x0004 -- */ 353 /* 0x0008 -- */ 354 /* 0x0010 -- */ 355 /* 0x0020 -- */ 356 /* 0x0040 -- */ 357 /* 0x0080 -- */ 358 #define SS_LSTART 0x0100 /* lstart timeout pending */ 359 #define SS_INLSTART 0x0200 /* running an lstart induced t_oproc */ 360 #define SS_CLOSING 0x0400 /* in the middle of a siclose() */ 361 /* 0x0800 -- */ 362 #define SS_WAITWRITE 0x1000 363 #define SS_BLOCKWRITE 0x2000 364 365 /* 366 * Command post flags 367 */ 368 #define SI_NOWAIT 0x00 /* Don't wait for command */ 369 #define SI_WAIT 0x01 /* Wait for complete */ 370 371 /* 372 * Extensive debugging stuff - manipulated using siconfig(8) 373 */ 374 #define DBG_ENTRY 0x00000001 375 #define DBG_DRAIN 0x00000002 376 #define DBG_OPEN 0x00000004 377 #define DBG_CLOSE 0x00000008 378 #define DBG_READ 0x00000010 379 #define DBG_WRITE 0x00000020 380 #define DBG_PARAM 0x00000040 381 #define DBG_INTR 0x00000080 382 #define DBG_IOCTL 0x00000100 383 /* 0x00000200 */ 384 #define DBG_SELECT 0x00000400 385 #define DBG_OPTIM 0x00000800 386 #define DBG_START 0x00001000 387 #define DBG_EXIT 0x00002000 388 #define DBG_FAIL 0x00004000 389 #define DBG_STOP 0x00008000 390 #define DBG_AUTOBOOT 0x00010000 391 #define DBG_MODEM 0x00020000 392 #define DBG_DOWNLOAD 0x00040000 393 #define DBG_LSTART 0x00080000 394 #define DBG_POLL 0x00100000 395 #define DBG_ALL 0xffffffff 396 397 /* 398 * SI ioctls 399 */ 400 /* 401 * struct for use by Specialix ioctls - used by siconfig(8) 402 */ 403 typedef struct { 404 unsigned char 405 sid_port:5, /* 0 - 31 ports per card */ 406 sid_card:2, /* 0 - 3 cards */ 407 sid_control:1; /* controlling device (all cards) */ 408 } sidev_t; 409 struct si_tcsi { 410 sidev_t tc_dev; 411 union { 412 int x_int; 413 int x_dbglvl; 414 } tc_action; 415 #define tc_card tc_dev.sid_card 416 #define tc_port tc_dev.sid_port 417 #define tc_int tc_action.x_int 418 #define tc_dbglvl tc_action.x_dbglvl 419 }; 420 421 struct si_pstat { 422 sidev_t tc_dev; 423 union { 424 struct si_port x_siport; 425 struct si_channel x_ccb; 426 struct tty x_tty; 427 } tc_action; 428 #define tc_siport tc_action.x_siport 429 #define tc_ccb tc_action.x_ccb 430 #define tc_tty tc_action.x_tty 431 }; 432 433 #define IOCTL_MIN 96 434 #define TCSIDEBUG _IOW('S', 96, struct si_tcsi) /* Toggle debug */ 435 #define TCSIRXIT _IOW('S', 97, struct si_tcsi) /* RX int throttle */ 436 #define TCSIIT _IOW('S', 98, struct si_tcsi) /* TX int throttle */ 437 /* 99 defunct */ 438 /* 100 defunct */ 439 /* 101 defunct */ 440 /* 102 defunct */ 441 /* 103 defunct */ 442 /* 104 defunct */ 443 #define TCSISTATE _IOWR('S', 105, struct si_tcsi) /* get current state of RTS 444 DCD and DTR pins */ 445 /* 106 defunct */ 446 #define TCSIPORTS _IOR('S', 107, int) /* Number of ports found */ 447 #define TCSISDBG_LEVEL _IOW('S', 108, struct si_tcsi) /* equivalent of TCSIDEBUG which sets a 448 * particular debug level (DBG_??? bit 449 * mask), default is 0xffff */ 450 #define TCSIGDBG_LEVEL _IOWR('S', 109, struct si_tcsi) 451 #define TCSIGRXIT _IOWR('S', 110, struct si_tcsi) 452 #define TCSIGIT _IOWR('S', 111, struct si_tcsi) 453 /* 112 defunct */ 454 /* 113 defunct */ 455 /* 114 defunct */ 456 /* 115 defunct */ 457 /* 116 defunct */ 458 /* 117 defunct */ 459 460 #define TCSISDBG_ALL _IOW('S', 118, int) /* set global debug level */ 461 #define TCSIGDBG_ALL _IOR('S', 119, int) /* get global debug level */ 462 463 /* 120 defunct */ 464 /* 121 defunct */ 465 /* 122 defunct */ 466 /* 123 defunct */ 467 #define TCSIMODULES _IOR('S', 124, int) /* Number of modules found */ 468 469 /* Various stats and monitoring hooks per tty device */ 470 #define TCSI_PORT _IOWR('S', 125, struct si_pstat) /* get si_port */ 471 #define TCSI_CCB _IOWR('S', 126, struct si_pstat) /* get si_ccb */ 472 #define TCSI_TTY _IOWR('S', 127, struct si_pstat) /* get tty struct */ 473 474 #define IOCTL_MAX 127 475 476 #define IS_SI_IOCTL(cmd) ((u_int)((cmd)&0xff00) == ('S'<<8) && \ 477 (u_int)((cmd)&0xff) >= IOCTL_MIN && \ 478 (u_int)((cmd)&0xff) <= IOCTL_MAX) 479 480 #define CONTROLDEV "/dev/si_control"
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