1 /* 2 * Support for common PCI multi-I/O cards (which is most of them) 3 * 4 * Copyright (C) 2001 Tim Waugh <twaugh@redhat.com> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License 8 * as published by the Free Software Foundation; either version 9 * 2 of the License, or (at your option) any later version. 10 * 11 * 12 * Multi-function PCI cards are supposed to present separate logical 13 * devices on the bus. A common thing to do seems to be to just use 14 * one logical device with lots of base address registers for both 15 * parallel ports and serial ports. This driver is for dealing with 16 * that. 17 * 18 */ 19 20 #include <linux/types.h> 21 #include <linux/module.h> 22 #include <linux/init.h> 23 #include <linux/pci.h> 24 #include <linux/interrupt.h> 25 #include <linux/parport.h> 26 #include <linux/parport_pc.h> 27 #include <linux/8250_pci.h> 28 29 enum parport_pc_pci_cards { 30 titan_110l = 0, 31 titan_210l, 32 netmos_9xx5_combo, 33 netmos_9855, 34 netmos_9855_2p, 35 avlab_1s1p, 36 avlab_1s2p, 37 avlab_2s1p, 38 siig_1s1p_10x, 39 siig_2s1p_10x, 40 siig_2p1s_20x, 41 siig_1s1p_20x, 42 siig_2s1p_20x, 43 }; 44 45 /* each element directly indexed from enum list, above */ 46 struct parport_pc_pci { 47 int numports; 48 struct { /* BAR (base address registers) numbers in the config 49 space header */ 50 int lo; 51 int hi; /* -1 if not there, >6 for offset-method (max 52 BAR is 6) */ 53 } addr[4]; 54 55 /* If set, this is called immediately after pci_enable_device. 56 * If it returns non-zero, no probing will take place and the 57 * ports will not be used. */ 58 int (*preinit_hook) (struct pci_dev *pdev, struct parport_pc_pci *card, 59 int autoirq, int autodma); 60 61 /* If set, this is called after probing for ports. If 'failed' 62 * is non-zero we couldn't use any of the ports. */ 63 void (*postinit_hook) (struct pci_dev *pdev, 64 struct parport_pc_pci *card, int failed); 65 }; 66 67 static int __devinit netmos_parallel_init(struct pci_dev *dev, struct parport_pc_pci *par, int autoirq, int autodma) 68 { 69 /* the rule described below doesn't hold for this device */ 70 if (dev->device == PCI_DEVICE_ID_NETMOS_9835 && 71 dev->subsystem_vendor == PCI_VENDOR_ID_IBM && 72 dev->subsystem_device == 0x0299) 73 return -ENODEV; 74 /* 75 * Netmos uses the subdevice ID to indicate the number of parallel 76 * and serial ports. The form is 0x00PS, where <P> is the number of 77 * parallel ports and <S> is the number of serial ports. 78 */ 79 par->numports = (dev->subsystem_device & 0xf0) >> 4; 80 if (par->numports > ARRAY_SIZE(par->addr)) 81 par->numports = ARRAY_SIZE(par->addr); 82 /* 83 * This function is currently only called for cards with up to 84 * one parallel port. 85 * Parallel port BAR is either before or after serial ports BARS; 86 * hence, lo should be either 0 or equal to the number of serial ports. 87 */ 88 if (par->addr[0].lo != 0) 89 par->addr[0].lo = dev->subsystem_device & 0xf; 90 return 0; 91 } 92 93 static struct parport_pc_pci cards[] __devinitdata = { 94 /* titan_110l */ { 1, { { 3, -1 }, } }, 95 /* titan_210l */ { 1, { { 3, -1 }, } }, 96 /* netmos_9xx5_combo */ { 1, { { 2, -1 }, }, netmos_parallel_init }, 97 /* netmos_9855 */ { 1, { { 0, -1 }, }, netmos_parallel_init }, 98 /* netmos_9855_2p */ { 2, { { 0, -1 }, { 2, -1 }, } }, 99 /* avlab_1s1p */ { 1, { { 1, 2}, } }, 100 /* avlab_1s2p */ { 2, { { 1, 2}, { 3, 4 },} }, 101 /* avlab_2s1p */ { 1, { { 2, 3}, } }, 102 /* siig_1s1p_10x */ { 1, { { 3, 4 }, } }, 103 /* siig_2s1p_10x */ { 1, { { 4, 5 }, } }, 104 /* siig_2p1s_20x */ { 2, { { 1, 2 }, { 3, 4 }, } }, 105 /* siig_1s1p_20x */ { 1, { { 1, 2 }, } }, 106 /* siig_2s1p_20x */ { 1, { { 2, 3 }, } }, 107 }; 108 109 static struct pci_device_id parport_serial_pci_tbl[] = { 110 /* PCI cards */ 111 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_110L, 112 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_110l }, 113 { PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_210L, 114 PCI_ANY_ID, PCI_ANY_ID, 0, 0, titan_210l }, 115 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9735, 116 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo }, 117 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9745, 118 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo }, 119 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9835, 120 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo }, 121 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9845, 122 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9xx5_combo }, 123 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855, 124 0x1000, 0x0020, 0, 0, netmos_9855_2p }, 125 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855, 126 0x1000, 0x0022, 0, 0, netmos_9855_2p }, 127 { PCI_VENDOR_ID_NETMOS, PCI_DEVICE_ID_NETMOS_9855, 128 PCI_ANY_ID, PCI_ANY_ID, 0, 0, netmos_9855 }, 129 /* PCI_VENDOR_ID_AVLAB/Intek21 has another bunch of cards ...*/ 130 { PCI_VENDOR_ID_AFAVLAB, 0x2110, 131 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p }, 132 { PCI_VENDOR_ID_AFAVLAB, 0x2111, 133 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p }, 134 { PCI_VENDOR_ID_AFAVLAB, 0x2112, 135 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s1p }, 136 { PCI_VENDOR_ID_AFAVLAB, 0x2140, 137 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p }, 138 { PCI_VENDOR_ID_AFAVLAB, 0x2141, 139 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p }, 140 { PCI_VENDOR_ID_AFAVLAB, 0x2142, 141 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_1s2p }, 142 { PCI_VENDOR_ID_AFAVLAB, 0x2160, 143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p }, 144 { PCI_VENDOR_ID_AFAVLAB, 0x2161, 145 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p }, 146 { PCI_VENDOR_ID_AFAVLAB, 0x2162, 147 PCI_ANY_ID, PCI_ANY_ID, 0, 0, avlab_2s1p }, 148 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_550, 149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x }, 150 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_650, 151 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x }, 152 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_10x_850, 153 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_10x }, 154 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_550, 155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x }, 156 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_650, 157 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x }, 158 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_10x_850, 159 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_10x }, 160 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_550, 161 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x }, 162 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_650, 163 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x }, 164 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2P1S_20x_850, 165 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2p1s_20x }, 166 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_550, 167 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x }, 168 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_650, 169 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x }, 170 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S1P_20x_850, 171 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_1s1p_20x }, 172 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_550, 173 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x }, 174 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_650, 175 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x }, 176 { PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_2S1P_20x_850, 177 PCI_ANY_ID, PCI_ANY_ID, 0, 0, siig_2s1p_20x }, 178 179 { 0, } /* terminate list */ 180 }; 181 MODULE_DEVICE_TABLE(pci,parport_serial_pci_tbl); 182 183 /* 184 * This table describes the serial "geometry" of these boards. Any 185 * quirks for these can be found in drivers/serial/8250_pci.c 186 * 187 * Cards not tested are marked n/t 188 * If you have one of these cards and it works for you, please tell me.. 189 */ 190 static struct pciserial_board pci_parport_serial_boards[] __devinitdata = { 191 [titan_110l] = { 192 .flags = FL_BASE1 | FL_BASE_BARS, 193 .num_ports = 1, 194 .base_baud = 921600, 195 .uart_offset = 8, 196 }, 197 [titan_210l] = { 198 .flags = FL_BASE1 | FL_BASE_BARS, 199 .num_ports = 2, 200 .base_baud = 921600, 201 .uart_offset = 8, 202 }, 203 [netmos_9xx5_combo] = { 204 .flags = FL_BASE0 | FL_BASE_BARS, 205 .num_ports = 1, 206 .base_baud = 115200, 207 .uart_offset = 8, 208 }, 209 [netmos_9855] = { 210 .flags = FL_BASE2 | FL_BASE_BARS, 211 .num_ports = 1, 212 .base_baud = 115200, 213 .uart_offset = 8, 214 }, 215 [netmos_9855_2p] = { 216 .flags = FL_BASE4 | FL_BASE_BARS, 217 .num_ports = 1, 218 .base_baud = 115200, 219 .uart_offset = 8, 220 }, 221 [avlab_1s1p] = { /* n/t */ 222 .flags = FL_BASE0 | FL_BASE_BARS, 223 .num_ports = 1, 224 .base_baud = 115200, 225 .uart_offset = 8, 226 }, 227 [avlab_1s2p] = { /* n/t */ 228 .flags = FL_BASE0 | FL_BASE_BARS, 229 .num_ports = 1, 230 .base_baud = 115200, 231 .uart_offset = 8, 232 }, 233 [avlab_2s1p] = { /* n/t */ 234 .flags = FL_BASE0 | FL_BASE_BARS, 235 .num_ports = 2, 236 .base_baud = 115200, 237 .uart_offset = 8, 238 }, 239 [siig_1s1p_10x] = { 240 .flags = FL_BASE2, 241 .num_ports = 1, 242 .base_baud = 460800, 243 .uart_offset = 8, 244 }, 245 [siig_2s1p_10x] = { 246 .flags = FL_BASE2, 247 .num_ports = 1, 248 .base_baud = 921600, 249 .uart_offset = 8, 250 }, 251 [siig_2p1s_20x] = { 252 .flags = FL_BASE0, 253 .num_ports = 1, 254 .base_baud = 921600, 255 .uart_offset = 8, 256 }, 257 [siig_1s1p_20x] = { 258 .flags = FL_BASE0, 259 .num_ports = 1, 260 .base_baud = 921600, 261 .uart_offset = 8, 262 }, 263 [siig_2s1p_20x] = { 264 .flags = FL_BASE0, 265 .num_ports = 1, 266 .base_baud = 921600, 267 .uart_offset = 8, 268 }, 269 }; 270 271 struct parport_serial_private { 272 struct serial_private *serial; 273 int num_par; 274 struct parport *port[PARPORT_MAX]; 275 struct parport_pc_pci par; 276 }; 277 278 /* Register the serial port(s) of a PCI card. */ 279 static int __devinit serial_register (struct pci_dev *dev, 280 const struct pci_device_id *id) 281 { 282 struct parport_serial_private *priv = pci_get_drvdata (dev); 283 struct pciserial_board *board; 284 struct serial_private *serial; 285 286 board = &pci_parport_serial_boards[id->driver_data]; 287 serial = pciserial_init_ports(dev, board); 288 289 if (IS_ERR(serial)) 290 return PTR_ERR(serial); 291 292 priv->serial = serial; 293 return 0; 294 } 295 296 /* Register the parallel port(s) of a PCI card. */ 297 static int __devinit parport_register (struct pci_dev *dev, 298 const struct pci_device_id *id) 299 { 300 struct parport_pc_pci *card; 301 struct parport_serial_private *priv = pci_get_drvdata (dev); 302 int n, success = 0; 303 304 priv->par = cards[id->driver_data]; 305 card = &priv->par; 306 if (card->preinit_hook && 307 card->preinit_hook (dev, card, PARPORT_IRQ_NONE, PARPORT_DMA_NONE)) 308 return -ENODEV; 309 310 for (n = 0; n < card->numports; n++) { 311 struct parport *port; 312 int lo = card->addr[n].lo; 313 int hi = card->addr[n].hi; 314 unsigned long io_lo, io_hi; 315 int irq; 316 317 if (priv->num_par == ARRAY_SIZE (priv->port)) { 318 printk (KERN_WARNING 319 "parport_serial: %s: only %zu parallel ports " 320 "supported (%d reported)\n", pci_name (dev), 321 ARRAY_SIZE(priv->port), card->numports); 322 break; 323 } 324 325 io_lo = pci_resource_start (dev, lo); 326 io_hi = 0; 327 if ((hi >= 0) && (hi <= 6)) 328 io_hi = pci_resource_start (dev, hi); 329 else if (hi > 6) 330 io_lo += hi; /* Reinterpret the meaning of 331 "hi" as an offset (see SYBA 332 def.) */ 333 /* TODO: test if sharing interrupts works */ 334 irq = dev->irq; 335 if (irq == IRQ_NONE) { 336 dev_dbg(&dev->dev, 337 "PCI parallel port detected: I/O at %#lx(%#lx)\n", 338 io_lo, io_hi); 339 irq = PARPORT_IRQ_NONE; 340 } else { 341 dev_dbg(&dev->dev, 342 "PCI parallel port detected: I/O at %#lx(%#lx), IRQ %d\n", 343 io_lo, io_hi, irq); 344 irq = PARPORT_IRQ_NONE; 345 } 346 port = parport_pc_probe_port (io_lo, io_hi, irq, 347 PARPORT_DMA_NONE, &dev->dev, IRQF_SHARED); 348 if (port) { 349 priv->port[priv->num_par++] = port; 350 success = 1; 351 } 352 } 353 354 if (card->postinit_hook) 355 card->postinit_hook (dev, card, !success); 356 357 return 0; 358 } 359 360 static int __devinit parport_serial_pci_probe (struct pci_dev *dev, 361 const struct pci_device_id *id) 362 { 363 struct parport_serial_private *priv; 364 int err; 365 366 priv = kzalloc (sizeof *priv, GFP_KERNEL); 367 if (!priv) 368 return -ENOMEM; 369 pci_set_drvdata (dev, priv); 370 371 err = pci_enable_device (dev); 372 if (err) { 373 pci_set_drvdata (dev, NULL); 374 kfree (priv); 375 return err; 376 } 377 378 if (parport_register (dev, id)) { 379 pci_set_drvdata (dev, NULL); 380 kfree (priv); 381 return -ENODEV; 382 } 383 384 if (serial_register (dev, id)) { 385 int i; 386 for (i = 0; i < priv->num_par; i++) 387 parport_pc_unregister_port (priv->port[i]); 388 pci_set_drvdata (dev, NULL); 389 kfree (priv); 390 return -ENODEV; 391 } 392 393 return 0; 394 } 395 396 static void __devexit parport_serial_pci_remove (struct pci_dev *dev) 397 { 398 struct parport_serial_private *priv = pci_get_drvdata (dev); 399 int i; 400 401 pci_set_drvdata(dev, NULL); 402 403 // Serial ports 404 if (priv->serial) 405 pciserial_remove_ports(priv->serial); 406 407 // Parallel ports 408 for (i = 0; i < priv->num_par; i++) 409 parport_pc_unregister_port (priv->port[i]); 410 411 kfree (priv); 412 return; 413 } 414 415 #ifdef CONFIG_PM 416 static int parport_serial_pci_suspend(struct pci_dev *dev, pm_message_t state) 417 { 418 struct parport_serial_private *priv = pci_get_drvdata(dev); 419 420 if (priv->serial) 421 pciserial_suspend_ports(priv->serial); 422 423 /* FIXME: What about parport? */ 424 425 pci_save_state(dev); 426 pci_set_power_state(dev, pci_choose_state(dev, state)); 427 return 0; 428 } 429 430 static int parport_serial_pci_resume(struct pci_dev *dev) 431 { 432 struct parport_serial_private *priv = pci_get_drvdata(dev); 433 int err; 434 435 pci_set_power_state(dev, PCI_D0); 436 pci_restore_state(dev); 437 438 /* 439 * The device may have been disabled. Re-enable it. 440 */ 441 err = pci_enable_device(dev); 442 if (err) { 443 printk(KERN_ERR "parport_serial: %s: error enabling " 444 "device for resume (%d)\n", pci_name(dev), err); 445 return err; 446 } 447 448 if (priv->serial) 449 pciserial_resume_ports(priv->serial); 450 451 /* FIXME: What about parport? */ 452 453 return 0; 454 } 455 #endif 456 457 static struct pci_driver parport_serial_pci_driver = { 458 .name = "parport_serial", 459 .id_table = parport_serial_pci_tbl, 460 .probe = parport_serial_pci_probe, 461 .remove = __devexit_p(parport_serial_pci_remove), 462 #ifdef CONFIG_PM 463 .suspend = parport_serial_pci_suspend, 464 .resume = parport_serial_pci_resume, 465 #endif 466 }; 467 468 469 static int __init parport_serial_init (void) 470 { 471 return pci_register_driver (&parport_serial_pci_driver); 472 } 473 474 static void __exit parport_serial_exit (void) 475 { 476 pci_unregister_driver (&parport_serial_pci_driver); 477 return; 478 } 479 480 MODULE_AUTHOR("Tim Waugh <twaugh@redhat.com>"); 481 MODULE_DESCRIPTION("Driver for common parallel+serial multi-I/O PCI cards"); 482 MODULE_LICENSE("GPL"); 483 484 module_init(parport_serial_init); 485 module_exit(parport_serial_exit); 486