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