| 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Original driver code supplied by Multi-Tech |
| 4 | * |
| 5 | * Changes |
| 6 | * 1/9/98 alan@lxorguk.ukuu.org.uk |
| 7 | * Merge to 2.0.x kernel tree |
| 8 | * Obtain and use official major/minors |
| 9 | * Loader switched to a misc device |
| 10 | * (fixed range check bug as a side effect) |
| 11 | * Printk clean up |
| 12 | * 9/12/98 alan@lxorguk.ukuu.org.uk |
| 13 | * Rough port to 2.1.x |
| 14 | * |
| 15 | * 10/6/99 sameer Merged the ISA and PCI drivers to |
| 16 | * a new unified driver. |
| 17 | * |
| 18 | * 3/9/99 sameer Added support for ISI4616 cards. |
| 19 | * |
| 20 | * 16/9/99 sameer We do not force RTS low anymore. |
| 21 | * This is to prevent the firmware |
| 22 | * from getting confused. |
| 23 | * |
| 24 | * 26/10/99 sameer Cosmetic changes:The driver now |
| 25 | * dumps the Port Count information |
| 26 | * along with I/O address and IRQ. |
| 27 | * |
| 28 | * 13/12/99 sameer Fixed the problem with IRQ sharing. |
| 29 | * |
| 30 | * 10/5/00 sameer Fixed isicom_shutdown_board() |
| 31 | * to not lower DTR on all the ports |
| 32 | * when the last port on the card is |
| 33 | * closed. |
| 34 | * |
| 35 | * 10/5/00 sameer Signal mask setup command added |
| 36 | * to isicom_setup_port and |
| 37 | * isicom_shutdown_port. |
| 38 | * |
| 39 | * 24/5/00 sameer The driver is now SMP aware. |
| 40 | * |
| 41 | * |
| 42 | * 27/11/00 Vinayak P Risbud Fixed the Driver Crash Problem |
| 43 | * |
| 44 | * |
| 45 | * 03/01/01 anil .s Added support for resetting the |
| 46 | * internal modems on ISI cards. |
| 47 | * |
| 48 | * 08/02/01 anil .s Upgraded the driver for kernel |
| 49 | * 2.4.x |
| 50 | * |
| 51 | * 11/04/01 Kevin Fixed firmware load problem with |
| 52 | * ISIHP-4X card |
| 53 | * |
| 54 | * 30/04/01 anil .s Fixed the remote login through |
| 55 | * ISI port problem. Now the link |
| 56 | * does not go down before password |
| 57 | * prompt. |
| 58 | * |
| 59 | * 03/05/01 anil .s Fixed the problem with IRQ sharing |
| 60 | * among ISI-PCI cards. |
| 61 | * |
| 62 | * 03/05/01 anil .s Added support to display the version |
| 63 | * info during insmod as well as module |
| 64 | * listing by lsmod. |
| 65 | * |
| 66 | * 10/05/01 anil .s Done the modifications to the source |
| 67 | * file and Install script so that the |
| 68 | * same installation can be used for |
| 69 | * 2.2.x and 2.4.x kernel. |
| 70 | * |
| 71 | * 06/06/01 anil .s Now we drop both dtr and rts during |
| 72 | * shutdown_port as well as raise them |
| 73 | * during isicom_config_port. |
| 74 | * |
| 75 | * 09/06/01 acme@conectiva.com.br use capable, not suser, do |
| 76 | * restore_flags on failure in |
| 77 | * isicom_send_break, verify put_user |
| 78 | * result |
| 79 | * |
| 80 | * 11/02/03 ranjeeth Added support for 230 Kbps and 460 Kbps |
| 81 | * Baud index extended to 21 |
| 82 | * |
| 83 | * 20/03/03 ranjeeth Made to work for Linux Advanced server. |
| 84 | * Taken care of license warning. |
| 85 | * |
| 86 | * 10/12/03 Ravindra Made to work for Fedora Core 1 of |
| 87 | * Red Hat Distribution |
| 88 | * |
| 89 | * 06/01/05 Alan Cox Merged the ISI and base kernel strands |
| 90 | * into a single 2.6 driver |
| 91 | * |
| 92 | * *********************************************************** |
| 93 | * |
| 94 | * To use this driver you also need the support package. You |
| 95 | * can find this in RPM format on |
| 96 | * ftp://ftp.linux.org.uk/pub/linux/alan |
| 97 | * |
| 98 | * You can find the original tools for this direct from Multitech |
| 99 | * ftp://ftp.multitech.com/ISI-Cards/ |
| 100 | * |
| 101 | * Having installed the cards the module options (/etc/modprobe.d/) |
| 102 | * |
| 103 | * options isicom io=card1,card2,card3,card4 irq=card1,card2,card3,card4 |
| 104 | * |
| 105 | * Omit those entries for boards you don't have installed. |
| 106 | * |
| 107 | * TODO |
| 108 | * Merge testing |
| 109 | * 64-bit verification |
| 110 | */ |
| 111 | |
| 112 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 113 | |
| 114 | #include <linux/module.h> |
| 115 | #include <linux/firmware.h> |
| 116 | #include <linux/kernel.h> |
| 117 | #include <linux/tty.h> |
| 118 | #include <linux/tty_flip.h> |
| 119 | #include <linux/termios.h> |
| 120 | #include <linux/fs.h> |
| 121 | #include <linux/sched.h> |
| 122 | #include <linux/serial.h> |
| 123 | #include <linux/mm.h> |
| 124 | #include <linux/interrupt.h> |
| 125 | #include <linux/timer.h> |
| 126 | #include <linux/delay.h> |
| 127 | #include <linux/ioport.h> |
| 128 | #include <linux/slab.h> |
| 129 | |
| 130 | #include <linux/uaccess.h> |
| 131 | #include <linux/io.h> |
| 132 | |
| 133 | #include <linux/pci.h> |
| 134 | |
| 135 | #include <linux/isicom.h> |
| 136 | |
| 137 | #define InterruptTheCard(base) outw(0, (base) + 0xc) |
| 138 | #define ClearInterrupt(base) inw((base) + 0x0a) |
| 139 | |
| 140 | #ifdef DEBUG |
| 141 | #define isicom_paranoia_check(a, b, c) __isicom_paranoia_check((a), (b), (c)) |
| 142 | #else |
| 143 | #define isicom_paranoia_check(a, b, c) 0 |
| 144 | #endif |
| 145 | |
| 146 | static int isicom_probe(struct pci_dev *, const struct pci_device_id *); |
| 147 | static void isicom_remove(struct pci_dev *); |
| 148 | |
| 149 | static const struct pci_device_id isicom_pci_tbl[] = { |
| 150 | { PCI_DEVICE(VENDOR_ID, 0x2028) }, |
| 151 | { PCI_DEVICE(VENDOR_ID, 0x2051) }, |
| 152 | { PCI_DEVICE(VENDOR_ID, 0x2052) }, |
| 153 | { PCI_DEVICE(VENDOR_ID, 0x2053) }, |
| 154 | { PCI_DEVICE(VENDOR_ID, 0x2054) }, |
| 155 | { PCI_DEVICE(VENDOR_ID, 0x2055) }, |
| 156 | { PCI_DEVICE(VENDOR_ID, 0x2056) }, |
| 157 | { PCI_DEVICE(VENDOR_ID, 0x2057) }, |
| 158 | { PCI_DEVICE(VENDOR_ID, 0x2058) }, |
| 159 | { 0 } |
| 160 | }; |
| 161 | MODULE_DEVICE_TABLE(pci, isicom_pci_tbl); |
| 162 | |
| 163 | static struct pci_driver isicom_driver = { |
| 164 | .name = "isicom", |
| 165 | .id_table = isicom_pci_tbl, |
| 166 | .probe = isicom_probe, |
| 167 | .remove = isicom_remove |
| 168 | }; |
| 169 | |
| 170 | static int prev_card = 3; /* start servicing isi_card[0] */ |
| 171 | static struct tty_driver *isicom_normal; |
| 172 | |
| 173 | static void isicom_tx(struct timer_list *unused); |
| 174 | static void isicom_start(struct tty_struct *tty); |
| 175 | |
| 176 | static DEFINE_TIMER(tx, isicom_tx); |
| 177 | |
| 178 | /* baud index mappings from linux defns to isi */ |
| 179 | |
| 180 | static signed char linuxb_to_isib[] = { |
| 181 | -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 11, 13, 15, 16, 17, 18, 19, 20, 21 |
| 182 | }; |
| 183 | |
| 184 | struct isi_board { |
| 185 | unsigned long base; |
| 186 | int irq; |
| 187 | unsigned char port_count; |
| 188 | unsigned short status; |
| 189 | unsigned short port_status; /* each bit for each port */ |
| 190 | unsigned short shift_count; |
| 191 | struct isi_port *ports; |
| 192 | signed char count; |
| 193 | spinlock_t card_lock; /* Card wide lock 11/5/00 -sameer */ |
| 194 | unsigned long flags; |
| 195 | unsigned int index; |
| 196 | }; |
| 197 | |
| 198 | struct isi_port { |
| 199 | unsigned short magic; |
| 200 | struct tty_port port; |
| 201 | u16 channel; |
| 202 | u16 status; |
| 203 | struct isi_board *card; |
| 204 | unsigned char *xmit_buf; |
| 205 | int xmit_head; |
| 206 | int xmit_tail; |
| 207 | int xmit_cnt; |
| 208 | }; |
| 209 | |
| 210 | static struct isi_board isi_card[BOARD_COUNT]; |
| 211 | static struct isi_port isi_ports[PORT_COUNT]; |
| 212 | |
| 213 | /* |
| 214 | * Locking functions for card level locking. We need to own both |
| 215 | * the kernel lock for the card and have the card in a position that |
| 216 | * it wants to talk. |
| 217 | */ |
| 218 | |
| 219 | static int WaitTillCardIsFree(unsigned long base) |
| 220 | { |
| 221 | unsigned int count = 0; |
| 222 | |
| 223 | while (!(inw(base + 0xe) & 0x1) && count++ < 100) |
| 224 | mdelay(1); |
| 225 | |
| 226 | return !(inw(base + 0xe) & 0x1); |
| 227 | } |
| 228 | |
| 229 | static int lock_card(struct isi_board *card) |
| 230 | { |
| 231 | unsigned long base = card->base; |
| 232 | unsigned int retries, a; |
| 233 | |
| 234 | for (retries = 0; retries < 10; retries++) { |
| 235 | spin_lock_irqsave(&card->card_lock, card->flags); |
| 236 | for (a = 0; a < 10; a++) { |
| 237 | if (inw(base + 0xe) & 0x1) |
| 238 | return 1; |
| 239 | udelay(10); |
| 240 | } |
| 241 | spin_unlock_irqrestore(&card->card_lock, card->flags); |
| 242 | msleep(10); |
| 243 | } |
| 244 | pr_warn("Failed to lock Card (0x%lx)\n", card->base); |
| 245 | |
| 246 | return 0; /* Failed to acquire the card! */ |
| 247 | } |
| 248 | |
| 249 | static void unlock_card(struct isi_board *card) |
| 250 | { |
| 251 | spin_unlock_irqrestore(&card->card_lock, card->flags); |
| 252 | } |
| 253 | |
| 254 | /* |
| 255 | * ISI Card specific ops ... |
| 256 | */ |
| 257 | |
| 258 | /* card->lock HAS to be held */ |
| 259 | static void raise_dtr(struct isi_port *port) |
| 260 | { |
| 261 | struct isi_board *card = port->card; |
| 262 | unsigned long base = card->base; |
| 263 | u16 channel = port->channel; |
| 264 | |
| 265 | if (WaitTillCardIsFree(base)) |
| 266 | return; |
| 267 | |
| 268 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 269 | outw(0x0504, base); |
| 270 | InterruptTheCard(base); |
| 271 | port->status |= ISI_DTR; |
| 272 | } |
| 273 | |
| 274 | /* card->lock HAS to be held */ |
| 275 | static void drop_dtr(struct isi_port *port) |
| 276 | { |
| 277 | struct isi_board *card = port->card; |
| 278 | unsigned long base = card->base; |
| 279 | u16 channel = port->channel; |
| 280 | |
| 281 | if (WaitTillCardIsFree(base)) |
| 282 | return; |
| 283 | |
| 284 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 285 | outw(0x0404, base); |
| 286 | InterruptTheCard(base); |
| 287 | port->status &= ~ISI_DTR; |
| 288 | } |
| 289 | |
| 290 | /* card->lock HAS to be held */ |
| 291 | static inline void raise_rts(struct isi_port *port) |
| 292 | { |
| 293 | struct isi_board *card = port->card; |
| 294 | unsigned long base = card->base; |
| 295 | u16 channel = port->channel; |
| 296 | |
| 297 | if (WaitTillCardIsFree(base)) |
| 298 | return; |
| 299 | |
| 300 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 301 | outw(0x0a04, base); |
| 302 | InterruptTheCard(base); |
| 303 | port->status |= ISI_RTS; |
| 304 | } |
| 305 | |
| 306 | /* card->lock HAS to be held */ |
| 307 | static inline void drop_rts(struct isi_port *port) |
| 308 | { |
| 309 | struct isi_board *card = port->card; |
| 310 | unsigned long base = card->base; |
| 311 | u16 channel = port->channel; |
| 312 | |
| 313 | if (WaitTillCardIsFree(base)) |
| 314 | return; |
| 315 | |
| 316 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 317 | outw(0x0804, base); |
| 318 | InterruptTheCard(base); |
| 319 | port->status &= ~ISI_RTS; |
| 320 | } |
| 321 | |
| 322 | /* card->lock MUST NOT be held */ |
| 323 | |
| 324 | static void isicom_dtr_rts(struct tty_port *port, int on) |
| 325 | { |
| 326 | struct isi_port *ip = container_of(port, struct isi_port, port); |
| 327 | struct isi_board *card = ip->card; |
| 328 | unsigned long base = card->base; |
| 329 | u16 channel = ip->channel; |
| 330 | |
| 331 | if (!lock_card(card)) |
| 332 | return; |
| 333 | |
| 334 | if (on) { |
| 335 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 336 | outw(0x0f04, base); |
| 337 | InterruptTheCard(base); |
| 338 | ip->status |= (ISI_DTR | ISI_RTS); |
| 339 | } else { |
| 340 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 341 | outw(0x0C04, base); |
| 342 | InterruptTheCard(base); |
| 343 | ip->status &= ~(ISI_DTR | ISI_RTS); |
| 344 | } |
| 345 | unlock_card(card); |
| 346 | } |
| 347 | |
| 348 | /* card->lock HAS to be held */ |
| 349 | static void drop_dtr_rts(struct isi_port *port) |
| 350 | { |
| 351 | struct isi_board *card = port->card; |
| 352 | unsigned long base = card->base; |
| 353 | u16 channel = port->channel; |
| 354 | |
| 355 | if (WaitTillCardIsFree(base)) |
| 356 | return; |
| 357 | |
| 358 | outw(0x8000 | (channel << card->shift_count) | 0x02, base); |
| 359 | outw(0x0c04, base); |
| 360 | InterruptTheCard(base); |
| 361 | port->status &= ~(ISI_RTS | ISI_DTR); |
| 362 | } |
| 363 | |
| 364 | /* |
| 365 | * ISICOM Driver specific routines ... |
| 366 | * |
| 367 | */ |
| 368 | |
| 369 | static inline int __isicom_paranoia_check(struct isi_port const *port, |
| 370 | char *name, const char *routine) |
| 371 | { |
| 372 | if (!port) { |
| 373 | pr_warn("Warning: bad isicom magic for dev %s in %s\n", |
| 374 | name, routine); |
| 375 | return 1; |
| 376 | } |
| 377 | if (port->magic != ISICOM_MAGIC) { |
| 378 | pr_warn("Warning: NULL isicom port for dev %s in %s\n", |
| 379 | name, routine); |
| 380 | return 1; |
| 381 | } |
| 382 | |
| 383 | return 0; |
| 384 | } |
| 385 | |
| 386 | /* |
| 387 | * Transmitter. |
| 388 | * |
| 389 | * We shovel data into the card buffers on a regular basis. The card |
| 390 | * will do the rest of the work for us. |
| 391 | */ |
| 392 | |
| 393 | static void isicom_tx(struct timer_list *unused) |
| 394 | { |
| 395 | unsigned long flags, base; |
| 396 | unsigned int retries; |
| 397 | short count = (BOARD_COUNT-1), card; |
| 398 | short txcount, wrd, residue, word_count, cnt; |
| 399 | struct isi_port *port; |
| 400 | struct tty_struct *tty; |
| 401 | |
| 402 | /* find next active board */ |
| 403 | card = (prev_card + 1) & 0x0003; |
| 404 | while (count-- > 0) { |
| 405 | if (isi_card[card].status & BOARD_ACTIVE) |
| 406 | break; |
| 407 | card = (card + 1) & 0x0003; |
| 408 | } |
| 409 | if (!(isi_card[card].status & BOARD_ACTIVE)) |
| 410 | goto sched_again; |
| 411 | |
| 412 | prev_card = card; |
| 413 | |
| 414 | count = isi_card[card].port_count; |
| 415 | port = isi_card[card].ports; |
| 416 | base = isi_card[card].base; |
| 417 | |
| 418 | spin_lock_irqsave(&isi_card[card].card_lock, flags); |
| 419 | for (retries = 0; retries < 100; retries++) { |
| 420 | if (inw(base + 0xe) & 0x1) |
| 421 | break; |
| 422 | udelay(2); |
| 423 | } |
| 424 | if (retries >= 100) |
| 425 | goto unlock; |
| 426 | |
| 427 | tty = tty_port_tty_get(&port->port); |
| 428 | if (tty == NULL) |
| 429 | goto put_unlock; |
| 430 | |
| 431 | for (; count > 0; count--, port++) { |
| 432 | /* port not active or tx disabled to force flow control */ |
| 433 | if (!tty_port_initialized(&port->port) || |
| 434 | !(port->status & ISI_TXOK)) |
| 435 | continue; |
| 436 | |
| 437 | txcount = min_t(short, TX_SIZE, port->xmit_cnt); |
| 438 | if (txcount <= 0 || tty->stopped || tty->hw_stopped) |
| 439 | continue; |
| 440 | |
| 441 | if (!(inw(base + 0x02) & (1 << port->channel))) |
| 442 | continue; |
| 443 | |
| 444 | pr_debug("txing %d bytes, port%d.\n", |
| 445 | txcount, port->channel + 1); |
| 446 | outw((port->channel << isi_card[card].shift_count) | txcount, |
| 447 | base); |
| 448 | residue = NO; |
| 449 | wrd = 0; |
| 450 | while (1) { |
| 451 | cnt = min_t(int, txcount, (SERIAL_XMIT_SIZE |
| 452 | - port->xmit_tail)); |
| 453 | if (residue == YES) { |
| 454 | residue = NO; |
| 455 | if (cnt > 0) { |
| 456 | wrd |= (port->port.xmit_buf[port->xmit_tail] |
| 457 | << 8); |
| 458 | port->xmit_tail = (port->xmit_tail + 1) |
| 459 | & (SERIAL_XMIT_SIZE - 1); |
| 460 | port->xmit_cnt--; |
| 461 | txcount--; |
| 462 | cnt--; |
| 463 | outw(wrd, base); |
| 464 | } else { |
| 465 | outw(wrd, base); |
| 466 | break; |
| 467 | } |
| 468 | } |
| 469 | if (cnt <= 0) |
| 470 | break; |
| 471 | word_count = cnt >> 1; |
| 472 | outsw(base, port->port.xmit_buf+port->xmit_tail, word_count); |
| 473 | port->xmit_tail = (port->xmit_tail |
| 474 | + (word_count << 1)) & (SERIAL_XMIT_SIZE - 1); |
| 475 | txcount -= (word_count << 1); |
| 476 | port->xmit_cnt -= (word_count << 1); |
| 477 | if (cnt & 0x0001) { |
| 478 | residue = YES; |
| 479 | wrd = port->port.xmit_buf[port->xmit_tail]; |
| 480 | port->xmit_tail = (port->xmit_tail + 1) |
| 481 | & (SERIAL_XMIT_SIZE - 1); |
| 482 | port->xmit_cnt--; |
| 483 | txcount--; |
| 484 | } |
| 485 | } |
| 486 | |
| 487 | InterruptTheCard(base); |
| 488 | if (port->xmit_cnt <= 0) |
| 489 | port->status &= ~ISI_TXOK; |
| 490 | if (port->xmit_cnt <= WAKEUP_CHARS) |
| 491 | tty_wakeup(tty); |
| 492 | } |
| 493 | |
| 494 | put_unlock: |
| 495 | tty_kref_put(tty); |
| 496 | unlock: |
| 497 | spin_unlock_irqrestore(&isi_card[card].card_lock, flags); |
| 498 | /* schedule another tx for hopefully in about 10ms */ |
| 499 | sched_again: |
| 500 | mod_timer(&tx, jiffies + msecs_to_jiffies(10)); |
| 501 | } |
| 502 | |
| 503 | /* |
| 504 | * Main interrupt handler routine |
| 505 | */ |
| 506 | |
| 507 | static irqreturn_t isicom_interrupt(int irq, void *dev_id) |
| 508 | { |
| 509 | struct isi_board *card = dev_id; |
| 510 | struct isi_port *port; |
| 511 | struct tty_struct *tty; |
| 512 | unsigned long base; |
| 513 | u16 header, word_count, count, channel; |
| 514 | short byte_count; |
| 515 | unsigned char *rp; |
| 516 | |
| 517 | if (!card || !(card->status & FIRMWARE_LOADED)) |
| 518 | return IRQ_NONE; |
| 519 | |
| 520 | base = card->base; |
| 521 | |
| 522 | /* did the card interrupt us? */ |
| 523 | if (!(inw(base + 0x0e) & 0x02)) |
| 524 | return IRQ_NONE; |
| 525 | |
| 526 | spin_lock(&card->card_lock); |
| 527 | |
| 528 | /* |
| 529 | * disable any interrupts from the PCI card and lower the |
| 530 | * interrupt line |
| 531 | */ |
| 532 | outw(0x8000, base+0x04); |
| 533 | ClearInterrupt(base); |
| 534 | |
| 535 | inw(base); /* get the dummy word out */ |
| 536 | header = inw(base); |
| 537 | channel = (header & 0x7800) >> card->shift_count; |
| 538 | byte_count = header & 0xff; |
| 539 | |
| 540 | if (channel + 1 > card->port_count) { |
| 541 | pr_warn("%s(0x%lx): %d(channel) > port_count\n", |
| 542 | __func__, base, channel + 1); |
| 543 | outw(0x0000, base+0x04); /* enable interrupts */ |
| 544 | spin_unlock(&card->card_lock); |
| 545 | return IRQ_HANDLED; |
| 546 | } |
| 547 | port = card->ports + channel; |
| 548 | if (!tty_port_initialized(&port->port)) { |
| 549 | outw(0x0000, base+0x04); /* enable interrupts */ |
| 550 | spin_unlock(&card->card_lock); |
| 551 | return IRQ_HANDLED; |
| 552 | } |
| 553 | |
| 554 | tty = tty_port_tty_get(&port->port); |
| 555 | if (tty == NULL) { |
| 556 | while (byte_count > 1) { |
| 557 | inw(base); |
| 558 | byte_count -= 2; |
| 559 | } |
| 560 | if (byte_count & 0x01) |
| 561 | inw(base); |
| 562 | outw(0x0000, base+0x04); /* enable interrupts */ |
| 563 | spin_unlock(&card->card_lock); |
| 564 | return IRQ_HANDLED; |
| 565 | } |
| 566 | |
| 567 | if (header & 0x8000) { /* Status Packet */ |
| 568 | header = inw(base); |
| 569 | switch (header & 0xff) { |
| 570 | case 0: /* Change in EIA signals */ |
| 571 | if (tty_port_check_carrier(&port->port)) { |
| 572 | if (port->status & ISI_DCD) { |
| 573 | if (!(header & ISI_DCD)) { |
| 574 | /* Carrier has been lost */ |
| 575 | pr_debug("%s: DCD->low.\n", |
| 576 | __func__); |
| 577 | port->status &= ~ISI_DCD; |
| 578 | tty_hangup(tty); |
| 579 | } |
| 580 | } else if (header & ISI_DCD) { |
| 581 | /* Carrier has been detected */ |
| 582 | pr_debug("%s: DCD->high.\n", |
| 583 | __func__); |
| 584 | port->status |= ISI_DCD; |
| 585 | wake_up_interruptible(&port->port.open_wait); |
| 586 | } |
| 587 | } else { |
| 588 | if (header & ISI_DCD) |
| 589 | port->status |= ISI_DCD; |
| 590 | else |
| 591 | port->status &= ~ISI_DCD; |
| 592 | } |
| 593 | |
| 594 | if (tty_port_cts_enabled(&port->port)) { |
| 595 | if (tty->hw_stopped) { |
| 596 | if (header & ISI_CTS) { |
| 597 | tty->hw_stopped = 0; |
| 598 | /* start tx ing */ |
| 599 | port->status |= (ISI_TXOK |
| 600 | | ISI_CTS); |
| 601 | tty_wakeup(tty); |
| 602 | } |
| 603 | } else if (!(header & ISI_CTS)) { |
| 604 | tty->hw_stopped = 1; |
| 605 | /* stop tx ing */ |
| 606 | port->status &= ~(ISI_TXOK | ISI_CTS); |
| 607 | } |
| 608 | } else { |
| 609 | if (header & ISI_CTS) |
| 610 | port->status |= ISI_CTS; |
| 611 | else |
| 612 | port->status &= ~ISI_CTS; |
| 613 | } |
| 614 | |
| 615 | if (header & ISI_DSR) |
| 616 | port->status |= ISI_DSR; |
| 617 | else |
| 618 | port->status &= ~ISI_DSR; |
| 619 | |
| 620 | if (header & ISI_RI) |
| 621 | port->status |= ISI_RI; |
| 622 | else |
| 623 | port->status &= ~ISI_RI; |
| 624 | |
| 625 | break; |
| 626 | |
| 627 | case 1: /* Received Break !!! */ |
| 628 | tty_insert_flip_char(&port->port, 0, TTY_BREAK); |
| 629 | if (port->port.flags & ASYNC_SAK) |
| 630 | do_SAK(tty); |
| 631 | tty_flip_buffer_push(&port->port); |
| 632 | break; |
| 633 | |
| 634 | case 2: /* Statistics */ |
| 635 | pr_debug("%s: stats!!!\n", __func__); |
| 636 | break; |
| 637 | |
| 638 | default: |
| 639 | pr_debug("%s: Unknown code in status packet.\n", |
| 640 | __func__); |
| 641 | break; |
| 642 | } |
| 643 | } else { /* Data Packet */ |
| 644 | count = tty_prepare_flip_string(&port->port, &rp, |
| 645 | byte_count & ~1); |
| 646 | pr_debug("%s: Can rx %d of %d bytes.\n", |
| 647 | __func__, count, byte_count); |
| 648 | word_count = count >> 1; |
| 649 | insw(base, rp, word_count); |
| 650 | byte_count -= (word_count << 1); |
| 651 | if (count & 0x0001) { |
| 652 | tty_insert_flip_char(&port->port, inw(base) & 0xff, |
| 653 | TTY_NORMAL); |
| 654 | byte_count -= 2; |
| 655 | } |
| 656 | if (byte_count > 0) { |
| 657 | pr_debug("%s(0x%lx:%d): Flip buffer overflow! dropping bytes...\n", |
| 658 | __func__, base, channel + 1); |
| 659 | /* drain out unread xtra data */ |
| 660 | while (byte_count > 0) { |
| 661 | inw(base); |
| 662 | byte_count -= 2; |
| 663 | } |
| 664 | } |
| 665 | tty_flip_buffer_push(&port->port); |
| 666 | } |
| 667 | outw(0x0000, base+0x04); /* enable interrupts */ |
| 668 | spin_unlock(&card->card_lock); |
| 669 | tty_kref_put(tty); |
| 670 | |
| 671 | return IRQ_HANDLED; |
| 672 | } |
| 673 | |
| 674 | static void isicom_config_port(struct tty_struct *tty) |
| 675 | { |
| 676 | struct isi_port *port = tty->driver_data; |
| 677 | struct isi_board *card = port->card; |
| 678 | unsigned long baud; |
| 679 | unsigned long base = card->base; |
| 680 | u16 channel_setup, channel = port->channel, |
| 681 | shift_count = card->shift_count; |
| 682 | unsigned char flow_ctrl; |
| 683 | |
| 684 | /* FIXME: Switch to new tty baud API */ |
| 685 | baud = C_BAUD(tty); |
| 686 | if (baud & CBAUDEX) { |
| 687 | baud &= ~CBAUDEX; |
| 688 | |
| 689 | /* if CBAUDEX bit is on and the baud is set to either 50 or 75 |
| 690 | * then the card is programmed for 57.6Kbps or 115Kbps |
| 691 | * respectively. |
| 692 | */ |
| 693 | |
| 694 | /* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */ |
| 695 | if (baud < 1 || baud > 4) |
| 696 | tty->termios.c_cflag &= ~CBAUDEX; |
| 697 | else |
| 698 | baud += 15; |
| 699 | } |
| 700 | if (baud == 15) { |
| 701 | |
| 702 | /* the ASYNC_SPD_HI and ASYNC_SPD_VHI options are set |
| 703 | * by the set_serial_info ioctl ... this is done by |
| 704 | * the 'setserial' utility. |
| 705 | */ |
| 706 | |
| 707 | if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI) |
| 708 | baud++; /* 57.6 Kbps */ |
| 709 | if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI) |
| 710 | baud += 2; /* 115 Kbps */ |
| 711 | if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI) |
| 712 | baud += 3; /* 230 kbps*/ |
| 713 | if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP) |
| 714 | baud += 4; /* 460 kbps*/ |
| 715 | } |
| 716 | if (linuxb_to_isib[baud] == -1) { |
| 717 | /* hang up */ |
| 718 | drop_dtr(port); |
| 719 | return; |
| 720 | } else |
| 721 | raise_dtr(port); |
| 722 | |
| 723 | if (WaitTillCardIsFree(base) == 0) { |
| 724 | outw(0x8000 | (channel << shift_count) | 0x03, base); |
| 725 | outw(linuxb_to_isib[baud] << 8 | 0x03, base); |
| 726 | channel_setup = 0; |
| 727 | switch (C_CSIZE(tty)) { |
| 728 | case CS5: |
| 729 | channel_setup |= ISICOM_CS5; |
| 730 | break; |
| 731 | case CS6: |
| 732 | channel_setup |= ISICOM_CS6; |
| 733 | break; |
| 734 | case CS7: |
| 735 | channel_setup |= ISICOM_CS7; |
| 736 | break; |
| 737 | case CS8: |
| 738 | channel_setup |= ISICOM_CS8; |
| 739 | break; |
| 740 | } |
| 741 | |
| 742 | if (C_CSTOPB(tty)) |
| 743 | channel_setup |= ISICOM_2SB; |
| 744 | if (C_PARENB(tty)) { |
| 745 | channel_setup |= ISICOM_EVPAR; |
| 746 | if (C_PARODD(tty)) |
| 747 | channel_setup |= ISICOM_ODPAR; |
| 748 | } |
| 749 | outw(channel_setup, base); |
| 750 | InterruptTheCard(base); |
| 751 | } |
| 752 | tty_port_set_check_carrier(&port->port, !C_CLOCAL(tty)); |
| 753 | |
| 754 | /* flow control settings ...*/ |
| 755 | flow_ctrl = 0; |
| 756 | tty_port_set_cts_flow(&port->port, C_CRTSCTS(tty)); |
| 757 | if (C_CRTSCTS(tty)) |
| 758 | flow_ctrl |= ISICOM_CTSRTS; |
| 759 | if (I_IXON(tty)) |
| 760 | flow_ctrl |= ISICOM_RESPOND_XONXOFF; |
| 761 | if (I_IXOFF(tty)) |
| 762 | flow_ctrl |= ISICOM_INITIATE_XONXOFF; |
| 763 | |
| 764 | if (WaitTillCardIsFree(base) == 0) { |
| 765 | outw(0x8000 | (channel << shift_count) | 0x04, base); |
| 766 | outw(flow_ctrl << 8 | 0x05, base); |
| 767 | outw((STOP_CHAR(tty)) << 8 | (START_CHAR(tty)), base); |
| 768 | InterruptTheCard(base); |
| 769 | } |
| 770 | |
| 771 | /* rx enabled -> enable port for rx on the card */ |
| 772 | if (C_CREAD(tty)) { |
| 773 | card->port_status |= (1 << channel); |
| 774 | outw(card->port_status, base + 0x02); |
| 775 | } |
| 776 | } |
| 777 | |
| 778 | /* open et all */ |
| 779 | |
| 780 | static inline void isicom_setup_board(struct isi_board *bp) |
| 781 | { |
| 782 | int channel; |
| 783 | struct isi_port *port; |
| 784 | |
| 785 | bp->count++; |
| 786 | if (!(bp->status & BOARD_INIT)) { |
| 787 | port = bp->ports; |
| 788 | for (channel = 0; channel < bp->port_count; channel++, port++) |
| 789 | drop_dtr_rts(port); |
| 790 | } |
| 791 | bp->status |= BOARD_ACTIVE | BOARD_INIT; |
| 792 | } |
| 793 | |
| 794 | /* Activate and thus setup board are protected from races against shutdown |
| 795 | by the tty_port mutex */ |
| 796 | |
| 797 | static int isicom_activate(struct tty_port *tport, struct tty_struct *tty) |
| 798 | { |
| 799 | struct isi_port *port = container_of(tport, struct isi_port, port); |
| 800 | struct isi_board *card = port->card; |
| 801 | unsigned long flags; |
| 802 | |
| 803 | if (tty_port_alloc_xmit_buf(tport) < 0) |
| 804 | return -ENOMEM; |
| 805 | |
| 806 | spin_lock_irqsave(&card->card_lock, flags); |
| 807 | isicom_setup_board(card); |
| 808 | |
| 809 | port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; |
| 810 | |
| 811 | /* discard any residual data */ |
| 812 | if (WaitTillCardIsFree(card->base) == 0) { |
| 813 | outw(0x8000 | (port->channel << card->shift_count) | 0x02, |
| 814 | card->base); |
| 815 | outw(((ISICOM_KILLTX | ISICOM_KILLRX) << 8) | 0x06, card->base); |
| 816 | InterruptTheCard(card->base); |
| 817 | } |
| 818 | isicom_config_port(tty); |
| 819 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 820 | |
| 821 | return 0; |
| 822 | } |
| 823 | |
| 824 | static int isicom_carrier_raised(struct tty_port *port) |
| 825 | { |
| 826 | struct isi_port *ip = container_of(port, struct isi_port, port); |
| 827 | return (ip->status & ISI_DCD)?1 : 0; |
| 828 | } |
| 829 | |
| 830 | static struct tty_port *isicom_find_port(struct tty_struct *tty) |
| 831 | { |
| 832 | struct isi_port *port; |
| 833 | struct isi_board *card; |
| 834 | unsigned int board; |
| 835 | int line = tty->index; |
| 836 | |
| 837 | board = BOARD(line); |
| 838 | card = &isi_card[board]; |
| 839 | |
| 840 | if (!(card->status & FIRMWARE_LOADED)) |
| 841 | return NULL; |
| 842 | |
| 843 | /* open on a port greater than the port count for the card !!! */ |
| 844 | if (line > ((board * 16) + card->port_count - 1)) |
| 845 | return NULL; |
| 846 | |
| 847 | port = &isi_ports[line]; |
| 848 | if (isicom_paranoia_check(port, tty->name, "isicom_open")) |
| 849 | return NULL; |
| 850 | |
| 851 | return &port->port; |
| 852 | } |
| 853 | |
| 854 | static int isicom_open(struct tty_struct *tty, struct file *filp) |
| 855 | { |
| 856 | struct isi_port *port; |
| 857 | struct tty_port *tport; |
| 858 | |
| 859 | tport = isicom_find_port(tty); |
| 860 | if (tport == NULL) |
| 861 | return -ENODEV; |
| 862 | port = container_of(tport, struct isi_port, port); |
| 863 | |
| 864 | tty->driver_data = port; |
| 865 | return tty_port_open(tport, tty, filp); |
| 866 | } |
| 867 | |
| 868 | /* close et all */ |
| 869 | |
| 870 | /* card->lock HAS to be held */ |
| 871 | static void isicom_shutdown_port(struct isi_port *port) |
| 872 | { |
| 873 | struct isi_board *card = port->card; |
| 874 | |
| 875 | if (--card->count < 0) { |
| 876 | pr_debug("%s: bad board(0x%lx) count %d.\n", |
| 877 | __func__, card->base, card->count); |
| 878 | card->count = 0; |
| 879 | } |
| 880 | /* last port was closed, shutdown that board too */ |
| 881 | if (!card->count) |
| 882 | card->status &= BOARD_ACTIVE; |
| 883 | } |
| 884 | |
| 885 | static void isicom_flush_buffer(struct tty_struct *tty) |
| 886 | { |
| 887 | struct isi_port *port = tty->driver_data; |
| 888 | struct isi_board *card = port->card; |
| 889 | unsigned long flags; |
| 890 | |
| 891 | if (isicom_paranoia_check(port, tty->name, "isicom_flush_buffer")) |
| 892 | return; |
| 893 | |
| 894 | spin_lock_irqsave(&card->card_lock, flags); |
| 895 | port->xmit_cnt = port->xmit_head = port->xmit_tail = 0; |
| 896 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 897 | |
| 898 | tty_wakeup(tty); |
| 899 | } |
| 900 | |
| 901 | static void isicom_shutdown(struct tty_port *port) |
| 902 | { |
| 903 | struct isi_port *ip = container_of(port, struct isi_port, port); |
| 904 | struct isi_board *card = ip->card; |
| 905 | unsigned long flags; |
| 906 | |
| 907 | /* indicate to the card that no more data can be received |
| 908 | on this port */ |
| 909 | spin_lock_irqsave(&card->card_lock, flags); |
| 910 | card->port_status &= ~(1 << ip->channel); |
| 911 | outw(card->port_status, card->base + 0x02); |
| 912 | isicom_shutdown_port(ip); |
| 913 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 914 | tty_port_free_xmit_buf(port); |
| 915 | } |
| 916 | |
| 917 | static void isicom_close(struct tty_struct *tty, struct file *filp) |
| 918 | { |
| 919 | struct isi_port *ip = tty->driver_data; |
| 920 | struct tty_port *port; |
| 921 | |
| 922 | if (ip == NULL) |
| 923 | return; |
| 924 | |
| 925 | port = &ip->port; |
| 926 | if (isicom_paranoia_check(ip, tty->name, "isicom_close")) |
| 927 | return; |
| 928 | tty_port_close(port, tty, filp); |
| 929 | } |
| 930 | |
| 931 | /* write et all */ |
| 932 | static int isicom_write(struct tty_struct *tty, const unsigned char *buf, |
| 933 | int count) |
| 934 | { |
| 935 | struct isi_port *port = tty->driver_data; |
| 936 | struct isi_board *card = port->card; |
| 937 | unsigned long flags; |
| 938 | int cnt, total = 0; |
| 939 | |
| 940 | if (isicom_paranoia_check(port, tty->name, "isicom_write")) |
| 941 | return 0; |
| 942 | |
| 943 | spin_lock_irqsave(&card->card_lock, flags); |
| 944 | |
| 945 | while (1) { |
| 946 | cnt = min_t(int, count, min(SERIAL_XMIT_SIZE - port->xmit_cnt |
| 947 | - 1, SERIAL_XMIT_SIZE - port->xmit_head)); |
| 948 | if (cnt <= 0) |
| 949 | break; |
| 950 | |
| 951 | memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt); |
| 952 | port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE |
| 953 | - 1); |
| 954 | port->xmit_cnt += cnt; |
| 955 | buf += cnt; |
| 956 | count -= cnt; |
| 957 | total += cnt; |
| 958 | } |
| 959 | if (port->xmit_cnt && !tty->stopped && !tty->hw_stopped) |
| 960 | port->status |= ISI_TXOK; |
| 961 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 962 | return total; |
| 963 | } |
| 964 | |
| 965 | /* put_char et all */ |
| 966 | static int isicom_put_char(struct tty_struct *tty, unsigned char ch) |
| 967 | { |
| 968 | struct isi_port *port = tty->driver_data; |
| 969 | struct isi_board *card = port->card; |
| 970 | unsigned long flags; |
| 971 | |
| 972 | if (isicom_paranoia_check(port, tty->name, "isicom_put_char")) |
| 973 | return 0; |
| 974 | |
| 975 | spin_lock_irqsave(&card->card_lock, flags); |
| 976 | if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) { |
| 977 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 978 | return 0; |
| 979 | } |
| 980 | |
| 981 | port->port.xmit_buf[port->xmit_head++] = ch; |
| 982 | port->xmit_head &= (SERIAL_XMIT_SIZE - 1); |
| 983 | port->xmit_cnt++; |
| 984 | spin_unlock_irqrestore(&card->card_lock, flags); |
| 985 | return 1; |
| 986 | } |
| 987 | |
| 988 | /* flush_chars et all */ |
| 989 | static void isicom_flush_chars(struct tty_struct *tty) |
| 990 | { |
| 991 | struct isi_port *port = tty->driver_data; |
| 992 | |
| 993 | if (isicom_paranoia_check(port, tty->name, "isicom_flush_chars")) |
| 994 | return; |
| 995 | |
| 996 | if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped || |
| 997 | !port->port.xmit_buf) |
| 998 | return; |
| 999 | |
| 1000 | /* this tells the transmitter to consider this port for |
| 1001 | data output to the card ... that's the best we can do. */ |
| 1002 | port->status |= ISI_TXOK; |
| 1003 | } |
| 1004 | |
| 1005 | /* write_room et all */ |
| 1006 | static int isicom_write_room(struct tty_struct *tty) |
| 1007 | { |
| 1008 | struct isi_port *port = tty->driver_data; |
| 1009 | int free; |
| 1010 | |
| 1011 | if (isicom_paranoia_check(port, tty->name, "isicom_write_room")) |
| 1012 | return 0; |
| 1013 | |
| 1014 | free = SERIAL_XMIT_SIZE - port->xmit_cnt - 1; |
| 1015 | if (free < 0) |
| 1016 | free = 0; |
| 1017 | return free; |
| 1018 | } |
| 1019 | |
| 1020 | /* chars_in_buffer et all */ |
| 1021 | static int isicom_chars_in_buffer(struct tty_struct *tty) |
| 1022 | { |
| 1023 | struct isi_port *port = tty->driver_data; |
| 1024 | if (isicom_paranoia_check(port, tty->name, "isicom_chars_in_buffer")) |
| 1025 | return 0; |
| 1026 | return port->xmit_cnt; |
| 1027 | } |
| 1028 | |
| 1029 | /* ioctl et all */ |
| 1030 | static int isicom_send_break(struct tty_struct *tty, int length) |
| 1031 | { |
| 1032 | struct isi_port *port = tty->driver_data; |
| 1033 | struct isi_board *card = port->card; |
| 1034 | unsigned long base = card->base; |
| 1035 | |
| 1036 | if (length == -1) |
| 1037 | return -EOPNOTSUPP; |
| 1038 | |
| 1039 | if (!lock_card(card)) |
| 1040 | return -EINVAL; |
| 1041 | |
| 1042 | outw(0x8000 | ((port->channel) << (card->shift_count)) | 0x3, base); |
| 1043 | outw((length & 0xff) << 8 | 0x00, base); |
| 1044 | outw((length & 0xff00u), base); |
| 1045 | InterruptTheCard(base); |
| 1046 | |
| 1047 | unlock_card(card); |
| 1048 | return 0; |
| 1049 | } |
| 1050 | |
| 1051 | static int isicom_tiocmget(struct tty_struct *tty) |
| 1052 | { |
| 1053 | struct isi_port *port = tty->driver_data; |
| 1054 | /* just send the port status */ |
| 1055 | u16 status = port->status; |
| 1056 | |
| 1057 | if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) |
| 1058 | return -ENODEV; |
| 1059 | |
| 1060 | return ((status & ISI_RTS) ? TIOCM_RTS : 0) | |
| 1061 | ((status & ISI_DTR) ? TIOCM_DTR : 0) | |
| 1062 | ((status & ISI_DCD) ? TIOCM_CAR : 0) | |
| 1063 | ((status & ISI_DSR) ? TIOCM_DSR : 0) | |
| 1064 | ((status & ISI_CTS) ? TIOCM_CTS : 0) | |
| 1065 | ((status & ISI_RI ) ? TIOCM_RI : 0); |
| 1066 | } |
| 1067 | |
| 1068 | static int isicom_tiocmset(struct tty_struct *tty, |
| 1069 | unsigned int set, unsigned int clear) |
| 1070 | { |
| 1071 | struct isi_port *port = tty->driver_data; |
| 1072 | unsigned long flags; |
| 1073 | |
| 1074 | if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) |
| 1075 | return -ENODEV; |
| 1076 | |
| 1077 | spin_lock_irqsave(&port->card->card_lock, flags); |
| 1078 | if (set & TIOCM_RTS) |
| 1079 | raise_rts(port); |
| 1080 | if (set & TIOCM_DTR) |
| 1081 | raise_dtr(port); |
| 1082 | |
| 1083 | if (clear & TIOCM_RTS) |
| 1084 | drop_rts(port); |
| 1085 | if (clear & TIOCM_DTR) |
| 1086 | drop_dtr(port); |
| 1087 | spin_unlock_irqrestore(&port->card->card_lock, flags); |
| 1088 | |
| 1089 | return 0; |
| 1090 | } |
| 1091 | |
| 1092 | static int isicom_set_serial_info(struct tty_struct *tty, |
| 1093 | struct serial_struct *ss) |
| 1094 | { |
| 1095 | struct isi_port *port = tty->driver_data; |
| 1096 | int reconfig_port; |
| 1097 | |
| 1098 | if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) |
| 1099 | return -ENODEV; |
| 1100 | |
| 1101 | mutex_lock(&port->port.mutex); |
| 1102 | reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) != |
| 1103 | (ss->flags & ASYNC_SPD_MASK)); |
| 1104 | |
| 1105 | if (!capable(CAP_SYS_ADMIN)) { |
| 1106 | if ((ss->close_delay != port->port.close_delay) || |
| 1107 | (ss->closing_wait != port->port.closing_wait) || |
| 1108 | ((ss->flags & ~ASYNC_USR_MASK) != |
| 1109 | (port->port.flags & ~ASYNC_USR_MASK))) { |
| 1110 | mutex_unlock(&port->port.mutex); |
| 1111 | return -EPERM; |
| 1112 | } |
| 1113 | port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) | |
| 1114 | (ss->flags & ASYNC_USR_MASK)); |
| 1115 | } else { |
| 1116 | port->port.close_delay = ss->close_delay; |
| 1117 | port->port.closing_wait = ss->closing_wait; |
| 1118 | port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) | |
| 1119 | (ss->flags & ASYNC_FLAGS)); |
| 1120 | } |
| 1121 | if (reconfig_port) { |
| 1122 | unsigned long flags; |
| 1123 | spin_lock_irqsave(&port->card->card_lock, flags); |
| 1124 | isicom_config_port(tty); |
| 1125 | spin_unlock_irqrestore(&port->card->card_lock, flags); |
| 1126 | } |
| 1127 | mutex_unlock(&port->port.mutex); |
| 1128 | return 0; |
| 1129 | } |
| 1130 | |
| 1131 | static int isicom_get_serial_info(struct tty_struct *tty, |
| 1132 | struct serial_struct *ss) |
| 1133 | { |
| 1134 | struct isi_port *port = tty->driver_data; |
| 1135 | |
| 1136 | if (isicom_paranoia_check(port, tty->name, "isicom_ioctl")) |
| 1137 | return -ENODEV; |
| 1138 | |
| 1139 | mutex_lock(&port->port.mutex); |
| 1140 | /* ss->type = ? */ |
| 1141 | ss->line = port - isi_ports; |
| 1142 | ss->port = port->card->base; |
| 1143 | ss->irq = port->card->irq; |
| 1144 | ss->flags = port->port.flags; |
| 1145 | /* ss->baud_base = ? */ |
| 1146 | ss->close_delay = port->port.close_delay; |
| 1147 | ss->closing_wait = port->port.closing_wait; |
| 1148 | mutex_unlock(&port->port.mutex); |
| 1149 | return 0; |
| 1150 | } |
| 1151 | |
| 1152 | /* set_termios et all */ |
| 1153 | static void isicom_set_termios(struct tty_struct *tty, |
| 1154 | struct ktermios *old_termios) |
| 1155 | { |
| 1156 | struct isi_port *port = tty->driver_data; |
| 1157 | unsigned long flags; |
| 1158 | |
| 1159 | if (isicom_paranoia_check(port, tty->name, "isicom_set_termios")) |
| 1160 | return; |
| 1161 | |
| 1162 | if (tty->termios.c_cflag == old_termios->c_cflag && |
| 1163 | tty->termios.c_iflag == old_termios->c_iflag) |
| 1164 | return; |
| 1165 | |
| 1166 | spin_lock_irqsave(&port->card->card_lock, flags); |
| 1167 | isicom_config_port(tty); |
| 1168 | spin_unlock_irqrestore(&port->card->card_lock, flags); |
| 1169 | |
| 1170 | if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) { |
| 1171 | tty->hw_stopped = 0; |
| 1172 | isicom_start(tty); |
| 1173 | } |
| 1174 | } |
| 1175 | |
| 1176 | /* throttle et all */ |
| 1177 | static void isicom_throttle(struct tty_struct *tty) |
| 1178 | { |
| 1179 | struct isi_port *port = tty->driver_data; |
| 1180 | struct isi_board *card = port->card; |
| 1181 | |
| 1182 | if (isicom_paranoia_check(port, tty->name, "isicom_throttle")) |
| 1183 | return; |
| 1184 | |
| 1185 | /* tell the card that this port cannot handle any more data for now */ |
| 1186 | card->port_status &= ~(1 << port->channel); |
| 1187 | outw(card->port_status, card->base + 0x02); |
| 1188 | } |
| 1189 | |
| 1190 | /* unthrottle et all */ |
| 1191 | static void isicom_unthrottle(struct tty_struct *tty) |
| 1192 | { |
| 1193 | struct isi_port *port = tty->driver_data; |
| 1194 | struct isi_board *card = port->card; |
| 1195 | |
| 1196 | if (isicom_paranoia_check(port, tty->name, "isicom_unthrottle")) |
| 1197 | return; |
| 1198 | |
| 1199 | /* tell the card that this port is ready to accept more data */ |
| 1200 | card->port_status |= (1 << port->channel); |
| 1201 | outw(card->port_status, card->base + 0x02); |
| 1202 | } |
| 1203 | |
| 1204 | /* stop et all */ |
| 1205 | static void isicom_stop(struct tty_struct *tty) |
| 1206 | { |
| 1207 | struct isi_port *port = tty->driver_data; |
| 1208 | |
| 1209 | if (isicom_paranoia_check(port, tty->name, "isicom_stop")) |
| 1210 | return; |
| 1211 | |
| 1212 | /* this tells the transmitter not to consider this port for |
| 1213 | data output to the card. */ |
| 1214 | port->status &= ~ISI_TXOK; |
| 1215 | } |
| 1216 | |
| 1217 | /* start et all */ |
| 1218 | static void isicom_start(struct tty_struct *tty) |
| 1219 | { |
| 1220 | struct isi_port *port = tty->driver_data; |
| 1221 | |
| 1222 | if (isicom_paranoia_check(port, tty->name, "isicom_start")) |
| 1223 | return; |
| 1224 | |
| 1225 | /* this tells the transmitter to consider this port for |
| 1226 | data output to the card. */ |
| 1227 | port->status |= ISI_TXOK; |
| 1228 | } |
| 1229 | |
| 1230 | static void isicom_hangup(struct tty_struct *tty) |
| 1231 | { |
| 1232 | struct isi_port *port = tty->driver_data; |
| 1233 | |
| 1234 | if (isicom_paranoia_check(port, tty->name, "isicom_hangup")) |
| 1235 | return; |
| 1236 | tty_port_hangup(&port->port); |
| 1237 | } |
| 1238 | |
| 1239 | |
| 1240 | /* |
| 1241 | * Driver init and deinit functions |
| 1242 | */ |
| 1243 | |
| 1244 | static const struct tty_operations isicom_ops = { |
| 1245 | .open = isicom_open, |
| 1246 | .close = isicom_close, |
| 1247 | .write = isicom_write, |
| 1248 | .put_char = isicom_put_char, |
| 1249 | .flush_chars = isicom_flush_chars, |
| 1250 | .write_room = isicom_write_room, |
| 1251 | .chars_in_buffer = isicom_chars_in_buffer, |
| 1252 | .set_termios = isicom_set_termios, |
| 1253 | .throttle = isicom_throttle, |
| 1254 | .unthrottle = isicom_unthrottle, |
| 1255 | .stop = isicom_stop, |
| 1256 | .start = isicom_start, |
| 1257 | .hangup = isicom_hangup, |
| 1258 | .flush_buffer = isicom_flush_buffer, |
| 1259 | .tiocmget = isicom_tiocmget, |
| 1260 | .tiocmset = isicom_tiocmset, |
| 1261 | .break_ctl = isicom_send_break, |
| 1262 | .get_serial = isicom_get_serial_info, |
| 1263 | .set_serial = isicom_set_serial_info, |
| 1264 | }; |
| 1265 | |
| 1266 | static const struct tty_port_operations isicom_port_ops = { |
| 1267 | .carrier_raised = isicom_carrier_raised, |
| 1268 | .dtr_rts = isicom_dtr_rts, |
| 1269 | .activate = isicom_activate, |
| 1270 | .shutdown = isicom_shutdown, |
| 1271 | }; |
| 1272 | |
| 1273 | static int reset_card(struct pci_dev *pdev, |
| 1274 | const unsigned int card, unsigned int *signature) |
| 1275 | { |
| 1276 | struct isi_board *board = pci_get_drvdata(pdev); |
| 1277 | unsigned long base = board->base; |
| 1278 | unsigned int sig, portcount = 0; |
| 1279 | int retval = 0; |
| 1280 | |
| 1281 | dev_dbg(&pdev->dev, "ISILoad:Resetting Card%d at 0x%lx\n", card + 1, |
| 1282 | base); |
| 1283 | |
| 1284 | inw(base + 0x8); |
| 1285 | |
| 1286 | msleep(10); |
| 1287 | |
| 1288 | outw(0, base + 0x8); /* Reset */ |
| 1289 | |
| 1290 | msleep(1000); |
| 1291 | |
| 1292 | sig = inw(base + 0x4) & 0xff; |
| 1293 | |
| 1294 | if (sig != 0xa5 && sig != 0xbb && sig != 0xcc && sig != 0xdd && |
| 1295 | sig != 0xee) { |
| 1296 | dev_warn(&pdev->dev, "ISILoad:Card%u reset failure (Possible " |
| 1297 | "bad I/O Port Address 0x%lx).\n", card + 1, base); |
| 1298 | dev_dbg(&pdev->dev, "Sig=0x%x\n", sig); |
| 1299 | retval = -EIO; |
| 1300 | goto end; |
| 1301 | } |
| 1302 | |
| 1303 | msleep(10); |
| 1304 | |
| 1305 | portcount = inw(base + 0x2); |
| 1306 | if (!(inw(base + 0xe) & 0x1) || (portcount != 0 && portcount != 4 && |
| 1307 | portcount != 8 && portcount != 16)) { |
| 1308 | dev_err(&pdev->dev, "ISILoad:PCI Card%d reset failure.\n", |
| 1309 | card + 1); |
| 1310 | retval = -EIO; |
| 1311 | goto end; |
| 1312 | } |
| 1313 | |
| 1314 | switch (sig) { |
| 1315 | case 0xa5: |
| 1316 | case 0xbb: |
| 1317 | case 0xdd: |
| 1318 | board->port_count = (portcount == 4) ? 4 : 8; |
| 1319 | board->shift_count = 12; |
| 1320 | break; |
| 1321 | case 0xcc: |
| 1322 | case 0xee: |
| 1323 | board->port_count = 16; |
| 1324 | board->shift_count = 11; |
| 1325 | break; |
| 1326 | } |
| 1327 | dev_info(&pdev->dev, "-Done\n"); |
| 1328 | *signature = sig; |
| 1329 | |
| 1330 | end: |
| 1331 | return retval; |
| 1332 | } |
| 1333 | |
| 1334 | static int load_firmware(struct pci_dev *pdev, |
| 1335 | const unsigned int index, const unsigned int signature) |
| 1336 | { |
| 1337 | struct isi_board *board = pci_get_drvdata(pdev); |
| 1338 | const struct firmware *fw; |
| 1339 | unsigned long base = board->base; |
| 1340 | unsigned int a; |
| 1341 | u16 word_count, status; |
| 1342 | int retval = -EIO; |
| 1343 | char *name; |
| 1344 | u8 *data; |
| 1345 | |
| 1346 | struct stframe { |
| 1347 | u16 addr; |
| 1348 | u16 count; |
| 1349 | u8 data[0]; |
| 1350 | } *frame; |
| 1351 | |
| 1352 | switch (signature) { |
| 1353 | case 0xa5: |
| 1354 | name = "isi608.bin"; |
| 1355 | break; |
| 1356 | case 0xbb: |
| 1357 | name = "isi608em.bin"; |
| 1358 | break; |
| 1359 | case 0xcc: |
| 1360 | name = "isi616em.bin"; |
| 1361 | break; |
| 1362 | case 0xdd: |
| 1363 | name = "isi4608.bin"; |
| 1364 | break; |
| 1365 | case 0xee: |
| 1366 | name = "isi4616.bin"; |
| 1367 | break; |
| 1368 | default: |
| 1369 | dev_err(&pdev->dev, "Unknown signature.\n"); |
| 1370 | goto end; |
| 1371 | } |
| 1372 | |
| 1373 | retval = request_firmware(&fw, name, &pdev->dev); |
| 1374 | if (retval) |
| 1375 | goto end; |
| 1376 | |
| 1377 | retval = -EIO; |
| 1378 | |
| 1379 | for (frame = (struct stframe *)fw->data; |
| 1380 | frame < (struct stframe *)(fw->data + fw->size); |
| 1381 | frame = (struct stframe *)((u8 *)(frame + 1) + |
| 1382 | frame->count)) { |
| 1383 | if (WaitTillCardIsFree(base)) |
| 1384 | goto errrelfw; |
| 1385 | |
| 1386 | outw(0xf0, base); /* start upload sequence */ |
| 1387 | outw(0x00, base); |
| 1388 | outw(frame->addr, base); /* lsb of address */ |
| 1389 | |
| 1390 | word_count = frame->count / 2 + frame->count % 2; |
| 1391 | outw(word_count, base); |
| 1392 | InterruptTheCard(base); |
| 1393 | |
| 1394 | udelay(100); /* 0x2f */ |
| 1395 | |
| 1396 | if (WaitTillCardIsFree(base)) |
| 1397 | goto errrelfw; |
| 1398 | |
| 1399 | status = inw(base + 0x4); |
| 1400 | if (status != 0) { |
| 1401 | dev_warn(&pdev->dev, "Card%d rejected load header:\n" |
| 1402 | "Address:0x%x\n" |
| 1403 | "Count:0x%x\n" |
| 1404 | "Status:0x%x\n", |
| 1405 | index + 1, frame->addr, frame->count, status); |
| 1406 | goto errrelfw; |
| 1407 | } |
| 1408 | outsw(base, frame->data, word_count); |
| 1409 | |
| 1410 | InterruptTheCard(base); |
| 1411 | |
| 1412 | udelay(50); /* 0x0f */ |
| 1413 | |
| 1414 | if (WaitTillCardIsFree(base)) |
| 1415 | goto errrelfw; |
| 1416 | |
| 1417 | status = inw(base + 0x4); |
| 1418 | if (status != 0) { |
| 1419 | dev_err(&pdev->dev, "Card%d got out of sync.Card " |
| 1420 | "Status:0x%x\n", index + 1, status); |
| 1421 | goto errrelfw; |
| 1422 | } |
| 1423 | } |
| 1424 | |
| 1425 | /* XXX: should we test it by reading it back and comparing with original like |
| 1426 | * in load firmware package? */ |
| 1427 | for (frame = (struct stframe *)fw->data; |
| 1428 | frame < (struct stframe *)(fw->data + fw->size); |
| 1429 | frame = (struct stframe *)((u8 *)(frame + 1) + |
| 1430 | frame->count)) { |
| 1431 | if (WaitTillCardIsFree(base)) |
| 1432 | goto errrelfw; |
| 1433 | |
| 1434 | outw(0xf1, base); /* start download sequence */ |
| 1435 | outw(0x00, base); |
| 1436 | outw(frame->addr, base); /* lsb of address */ |
| 1437 | |
| 1438 | word_count = (frame->count >> 1) + frame->count % 2; |
| 1439 | outw(word_count + 1, base); |
| 1440 | InterruptTheCard(base); |
| 1441 | |
| 1442 | udelay(50); /* 0xf */ |
| 1443 | |
| 1444 | if (WaitTillCardIsFree(base)) |
| 1445 | goto errrelfw; |
| 1446 | |
| 1447 | status = inw(base + 0x4); |
| 1448 | if (status != 0) { |
| 1449 | dev_warn(&pdev->dev, "Card%d rejected verify header:\n" |
| 1450 | "Address:0x%x\n" |
| 1451 | "Count:0x%x\n" |
| 1452 | "Status: 0x%x\n", |
| 1453 | index + 1, frame->addr, frame->count, status); |
| 1454 | goto errrelfw; |
| 1455 | } |
| 1456 | |
| 1457 | data = kmalloc_array(word_count, 2, GFP_KERNEL); |
| 1458 | if (data == NULL) { |
| 1459 | dev_err(&pdev->dev, "Card%d, firmware upload " |
| 1460 | "failed, not enough memory\n", index + 1); |
| 1461 | goto errrelfw; |
| 1462 | } |
| 1463 | inw(base); |
| 1464 | insw(base, data, word_count); |
| 1465 | InterruptTheCard(base); |
| 1466 | |
| 1467 | for (a = 0; a < frame->count; a++) |
| 1468 | if (data[a] != frame->data[a]) { |
| 1469 | kfree(data); |
| 1470 | dev_err(&pdev->dev, "Card%d, firmware upload " |
| 1471 | "failed\n", index + 1); |
| 1472 | goto errrelfw; |
| 1473 | } |
| 1474 | kfree(data); |
| 1475 | |
| 1476 | udelay(50); /* 0xf */ |
| 1477 | |
| 1478 | if (WaitTillCardIsFree(base)) |
| 1479 | goto errrelfw; |
| 1480 | |
| 1481 | status = inw(base + 0x4); |
| 1482 | if (status != 0) { |
| 1483 | dev_err(&pdev->dev, "Card%d verify got out of sync. " |
| 1484 | "Card Status:0x%x\n", index + 1, status); |
| 1485 | goto errrelfw; |
| 1486 | } |
| 1487 | } |
| 1488 | |
| 1489 | /* xfer ctrl */ |
| 1490 | if (WaitTillCardIsFree(base)) |
| 1491 | goto errrelfw; |
| 1492 | |
| 1493 | outw(0xf2, base); |
| 1494 | outw(0x800, base); |
| 1495 | outw(0x0, base); |
| 1496 | outw(0x0, base); |
| 1497 | InterruptTheCard(base); |
| 1498 | outw(0x0, base + 0x4); /* for ISI4608 cards */ |
| 1499 | |
| 1500 | board->status |= FIRMWARE_LOADED; |
| 1501 | retval = 0; |
| 1502 | |
| 1503 | errrelfw: |
| 1504 | release_firmware(fw); |
| 1505 | end: |
| 1506 | return retval; |
| 1507 | } |
| 1508 | |
| 1509 | /* |
| 1510 | * Insmod can set static symbols so keep these static |
| 1511 | */ |
| 1512 | static unsigned int card_count; |
| 1513 | |
| 1514 | static int isicom_probe(struct pci_dev *pdev, |
| 1515 | const struct pci_device_id *ent) |
| 1516 | { |
| 1517 | unsigned int uninitialized_var(signature), index; |
| 1518 | int retval = -EPERM; |
| 1519 | struct isi_board *board = NULL; |
| 1520 | |
| 1521 | if (card_count >= BOARD_COUNT) |
| 1522 | goto err; |
| 1523 | |
| 1524 | retval = pci_enable_device(pdev); |
| 1525 | if (retval) { |
| 1526 | dev_err(&pdev->dev, "failed to enable\n"); |
| 1527 | goto err; |
| 1528 | } |
| 1529 | |
| 1530 | dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device); |
| 1531 | |
| 1532 | /* allot the first empty slot in the array */ |
| 1533 | for (index = 0; index < BOARD_COUNT; index++) { |
| 1534 | if (isi_card[index].base == 0) { |
| 1535 | board = &isi_card[index]; |
| 1536 | break; |
| 1537 | } |
| 1538 | } |
| 1539 | if (index == BOARD_COUNT) { |
| 1540 | retval = -ENODEV; |
| 1541 | goto err_disable; |
| 1542 | } |
| 1543 | |
| 1544 | board->index = index; |
| 1545 | board->base = pci_resource_start(pdev, 3); |
| 1546 | board->irq = pdev->irq; |
| 1547 | card_count++; |
| 1548 | |
| 1549 | pci_set_drvdata(pdev, board); |
| 1550 | |
| 1551 | retval = pci_request_region(pdev, 3, ISICOM_NAME); |
| 1552 | if (retval) { |
| 1553 | dev_err(&pdev->dev, "I/O Region 0x%lx-0x%lx is busy. Card%d " |
| 1554 | "will be disabled.\n", board->base, board->base + 15, |
| 1555 | index + 1); |
| 1556 | retval = -EBUSY; |
| 1557 | goto errdec; |
| 1558 | } |
| 1559 | |
| 1560 | retval = request_irq(board->irq, isicom_interrupt, |
| 1561 | IRQF_SHARED, ISICOM_NAME, board); |
| 1562 | if (retval < 0) { |
| 1563 | dev_err(&pdev->dev, "Could not install handler at Irq %d. " |
| 1564 | "Card%d will be disabled.\n", board->irq, index + 1); |
| 1565 | goto errunrr; |
| 1566 | } |
| 1567 | |
| 1568 | retval = reset_card(pdev, index, &signature); |
| 1569 | if (retval < 0) |
| 1570 | goto errunri; |
| 1571 | |
| 1572 | retval = load_firmware(pdev, index, signature); |
| 1573 | if (retval < 0) |
| 1574 | goto errunri; |
| 1575 | |
| 1576 | for (index = 0; index < board->port_count; index++) { |
| 1577 | struct tty_port *tport = &board->ports[index].port; |
| 1578 | tty_port_init(tport); |
| 1579 | tport->ops = &isicom_port_ops; |
| 1580 | tport->close_delay = 50 * HZ/100; |
| 1581 | tport->closing_wait = 3000 * HZ/100; |
| 1582 | tty_port_register_device(tport, isicom_normal, |
| 1583 | board->index * 16 + index, &pdev->dev); |
| 1584 | } |
| 1585 | |
| 1586 | return 0; |
| 1587 | |
| 1588 | errunri: |
| 1589 | free_irq(board->irq, board); |
| 1590 | errunrr: |
| 1591 | pci_release_region(pdev, 3); |
| 1592 | errdec: |
| 1593 | board->base = 0; |
| 1594 | card_count--; |
| 1595 | err_disable: |
| 1596 | pci_disable_device(pdev); |
| 1597 | err: |
| 1598 | return retval; |
| 1599 | } |
| 1600 | |
| 1601 | static void isicom_remove(struct pci_dev *pdev) |
| 1602 | { |
| 1603 | struct isi_board *board = pci_get_drvdata(pdev); |
| 1604 | unsigned int i; |
| 1605 | |
| 1606 | for (i = 0; i < board->port_count; i++) { |
| 1607 | tty_unregister_device(isicom_normal, board->index * 16 + i); |
| 1608 | tty_port_destroy(&board->ports[i].port); |
| 1609 | } |
| 1610 | |
| 1611 | free_irq(board->irq, board); |
| 1612 | pci_release_region(pdev, 3); |
| 1613 | board->base = 0; |
| 1614 | card_count--; |
| 1615 | pci_disable_device(pdev); |
| 1616 | } |
| 1617 | |
| 1618 | static int __init isicom_init(void) |
| 1619 | { |
| 1620 | int retval, idx, channel; |
| 1621 | struct isi_port *port; |
| 1622 | |
| 1623 | for (idx = 0; idx < BOARD_COUNT; idx++) { |
| 1624 | port = &isi_ports[idx * 16]; |
| 1625 | isi_card[idx].ports = port; |
| 1626 | spin_lock_init(&isi_card[idx].card_lock); |
| 1627 | for (channel = 0; channel < 16; channel++, port++) { |
| 1628 | port->magic = ISICOM_MAGIC; |
| 1629 | port->card = &isi_card[idx]; |
| 1630 | port->channel = channel; |
| 1631 | port->status = 0; |
| 1632 | /* . . . */ |
| 1633 | } |
| 1634 | isi_card[idx].base = 0; |
| 1635 | isi_card[idx].irq = 0; |
| 1636 | } |
| 1637 | |
| 1638 | /* tty driver structure initialization */ |
| 1639 | isicom_normal = alloc_tty_driver(PORT_COUNT); |
| 1640 | if (!isicom_normal) { |
| 1641 | retval = -ENOMEM; |
| 1642 | goto error; |
| 1643 | } |
| 1644 | |
| 1645 | isicom_normal->name = "ttyM"; |
| 1646 | isicom_normal->major = ISICOM_NMAJOR; |
| 1647 | isicom_normal->minor_start = 0; |
| 1648 | isicom_normal->type = TTY_DRIVER_TYPE_SERIAL; |
| 1649 | isicom_normal->subtype = SERIAL_TYPE_NORMAL; |
| 1650 | isicom_normal->init_termios = tty_std_termios; |
| 1651 | isicom_normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | |
| 1652 | CLOCAL; |
| 1653 | isicom_normal->flags = TTY_DRIVER_REAL_RAW | |
| 1654 | TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_HARDWARE_BREAK; |
| 1655 | tty_set_operations(isicom_normal, &isicom_ops); |
| 1656 | |
| 1657 | retval = tty_register_driver(isicom_normal); |
| 1658 | if (retval) { |
| 1659 | pr_debug("Couldn't register the dialin driver\n"); |
| 1660 | goto err_puttty; |
| 1661 | } |
| 1662 | |
| 1663 | retval = pci_register_driver(&isicom_driver); |
| 1664 | if (retval < 0) { |
| 1665 | pr_err("Unable to register pci driver.\n"); |
| 1666 | goto err_unrtty; |
| 1667 | } |
| 1668 | |
| 1669 | mod_timer(&tx, jiffies + 1); |
| 1670 | |
| 1671 | return 0; |
| 1672 | err_unrtty: |
| 1673 | tty_unregister_driver(isicom_normal); |
| 1674 | err_puttty: |
| 1675 | put_tty_driver(isicom_normal); |
| 1676 | error: |
| 1677 | return retval; |
| 1678 | } |
| 1679 | |
| 1680 | static void __exit isicom_exit(void) |
| 1681 | { |
| 1682 | del_timer_sync(&tx); |
| 1683 | |
| 1684 | pci_unregister_driver(&isicom_driver); |
| 1685 | tty_unregister_driver(isicom_normal); |
| 1686 | put_tty_driver(isicom_normal); |
| 1687 | } |
| 1688 | |
| 1689 | module_init(isicom_init); |
| 1690 | module_exit(isicom_exit); |
| 1691 | |
| 1692 | MODULE_AUTHOR("MultiTech"); |
| 1693 | MODULE_DESCRIPTION("Driver for the ISI series of cards by MultiTech"); |
| 1694 | MODULE_LICENSE("GPL"); |
| 1695 | MODULE_FIRMWARE("isi608.bin"); |
| 1696 | MODULE_FIRMWARE("isi608em.bin"); |
| 1697 | MODULE_FIRMWARE("isi616em.bin"); |
| 1698 | MODULE_FIRMWARE("isi4608.bin"); |
| 1699 | MODULE_FIRMWARE("isi4616.bin"); |