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