1/* 2 * Linux ARCnet driver - COM20020 PCI support 3 * Contemporary Controls PCI20 and SOHARD SH-ARC PCI 4 * 5 * Written 1994-1999 by Avery Pennarun, 6 * based on an ISA version by David Woodhouse. 7 * Written 1999-2000 by Martin Mares <mj@ucw.cz>. 8 * Derived from skeleton.c by Donald Becker. 9 * 10 * Special thanks to Contemporary Controls, Inc. (www.ccontrols.com) 11 * for sponsoring the further development of this driver. 12 * 13 * ********************** 14 * 15 * The original copyright of skeleton.c was as follows: 16 * 17 * skeleton.c Written 1993 by Donald Becker. 18 * Copyright 1993 United States Government as represented by the 19 * Director, National Security Agency. This software may only be used 20 * and distributed according to the terms of the GNU General Public License as 21 * modified by SRC, incorporated herein by reference. 22 * 23 * ********************** 24 * 25 * For more details, see drivers/net/arcnet.c 26 * 27 * ********************** 28 */ 29#include <linux/module.h> 30#include <linux/moduleparam.h> 31#include <linux/kernel.h> 32#include <linux/types.h> 33#include <linux/ioport.h> 34#include <linux/errno.h> 35#include <linux/netdevice.h> 36#include <linux/init.h> 37#include <linux/interrupt.h> 38#include <linux/pci.h> 39#include <linux/arcdevice.h> 40#include <linux/com20020.h> 41#include <linux/list.h> 42 43#include <asm/io.h> 44 45 46#define VERSION "arcnet: COM20020 PCI support\n" 47 48/* Module parameters */ 49 50static int node; 51static char device[9]; /* use eg. device="arc1" to change name */ 52static int timeout = 3; 53static int backplane; 54static int clockp; 55static int clockm; 56 57module_param(node, int, 0); 58module_param_string(device, device, sizeof(device), 0); 59module_param(timeout, int, 0); 60module_param(backplane, int, 0); 61module_param(clockp, int, 0); 62module_param(clockm, int, 0); 63MODULE_LICENSE("GPL"); 64 65static void com20020pci_remove(struct pci_dev *pdev); 66 67static int com20020pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) 68{ 69 struct com20020_pci_card_info *ci; 70 struct net_device *dev; 71 struct arcnet_local *lp; 72 struct com20020_priv *priv; 73 int i, ioaddr, ret; 74 struct resource *r; 75 76 if (pci_enable_device(pdev)) 77 return -EIO; 78 79 priv = devm_kzalloc(&pdev->dev, sizeof(struct com20020_priv), 80 GFP_KERNEL); 81 ci = (struct com20020_pci_card_info *)id->driver_data; 82 priv->ci = ci; 83 84 INIT_LIST_HEAD(&priv->list_dev); 85 86 87 for (i = 0; i < ci->devcount; i++) { 88 struct com20020_pci_channel_map *cm = &ci->chan_map_tbl[i]; 89 struct com20020_dev *card; 90 91 dev = alloc_arcdev(device); 92 if (!dev) { 93 ret = -ENOMEM; 94 goto out_port; 95 } 96 97 dev->netdev_ops = &com20020_netdev_ops; 98 99 lp = netdev_priv(dev); 100 101 BUGMSG(D_NORMAL, "%s Controls\n", ci->name); 102 ioaddr = pci_resource_start(pdev, cm->bar) + cm->offset; 103 104 r = devm_request_region(&pdev->dev, ioaddr, cm->size, 105 "com20020-pci"); 106 if (!r) { 107 pr_err("IO region %xh-%xh already allocated.\n", 108 ioaddr, ioaddr + cm->size - 1); 109 ret = -EBUSY; 110 goto out_port; 111 } 112 113 /* Dummy access after Reset 114 * ARCNET controller needs 115 * this access to detect bustype 116 */ 117 outb(0x00, ioaddr + 1); 118 inb(ioaddr + 1); 119 120 dev->base_addr = ioaddr; 121 dev->dev_addr[0] = node; 122 dev->irq = pdev->irq; 123 lp->card_name = "PCI COM20020"; 124 lp->card_flags = ci->flags; 125 lp->backplane = backplane; 126 lp->clockp = clockp & 7; 127 lp->clockm = clockm & 3; 128 lp->timeout = timeout; 129 lp->hw.owner = THIS_MODULE; 130 131 if (ASTATUS() == 0xFF) { 132 pr_err("IO address %Xh is empty!\n", ioaddr); 133 ret = -EIO; 134 goto out_port; 135 } 136 if (com20020_check(dev)) { 137 ret = -EIO; 138 goto out_port; 139 } 140 141 card = devm_kzalloc(&pdev->dev, sizeof(struct com20020_dev), 142 GFP_KERNEL); 143 if (!card) { 144 pr_err("%s out of memory!\n", __func__); 145 return -ENOMEM; 146 } 147 148 card->index = i; 149 card->pci_priv = priv; 150 card->dev = dev; 151 152 dev_set_drvdata(&dev->dev, card); 153 154 ret = com20020_found(dev, IRQF_SHARED); 155 if (ret) 156 goto out_port; 157 158 list_add(&card->list, &priv->list_dev); 159 } 160 161 pci_set_drvdata(pdev, priv); 162 163 return 0; 164 165out_port: 166 com20020pci_remove(pdev); 167 return ret; 168} 169 170static void com20020pci_remove(struct pci_dev *pdev) 171{ 172 struct com20020_dev *card, *tmpcard; 173 struct com20020_priv *priv; 174 175 priv = pci_get_drvdata(pdev); 176 177 list_for_each_entry_safe(card, tmpcard, &priv->list_dev, list) { 178 struct net_device *dev = card->dev; 179 180 unregister_netdev(dev); 181 free_irq(dev->irq, dev); 182 free_netdev(dev); 183 } 184} 185 186static struct com20020_pci_card_info card_info_10mbit = { 187 .name = "ARC-PCI", 188 .devcount = 1, 189 .chan_map_tbl = { 190 { 2, 0x00, 0x08 }, 191 }, 192 .flags = ARC_CAN_10MBIT, 193}; 194 195static struct com20020_pci_card_info card_info_5mbit = { 196 .name = "ARC-PCI", 197 .devcount = 1, 198 .chan_map_tbl = { 199 { 2, 0x00, 0x08 }, 200 }, 201 .flags = ARC_IS_5MBIT, 202}; 203 204static struct com20020_pci_card_info card_info_sohard = { 205 .name = "PLX-PCI", 206 .devcount = 1, 207 /* SOHARD needs PCI base addr 4 */ 208 .chan_map_tbl = { 209 {4, 0x00, 0x08}, 210 }, 211 .flags = ARC_CAN_10MBIT, 212}; 213 214static struct com20020_pci_card_info card_info_eae = { 215 .name = "EAE PLX-PCI", 216 .devcount = 2, 217 .chan_map_tbl = { 218 { 2, 0x00, 0x08 }, 219 { 2, 0x08, 0x08 } 220 }, 221 .flags = ARC_CAN_10MBIT, 222}; 223 224static const struct pci_device_id com20020pci_id_table[] = { 225 { 226 0x1571, 0xa001, 227 PCI_ANY_ID, PCI_ANY_ID, 228 0, 0, 229 0, 230 }, 231 { 232 0x1571, 0xa002, 233 PCI_ANY_ID, PCI_ANY_ID, 234 0, 0, 235 0, 236 }, 237 { 238 0x1571, 0xa003, 239 PCI_ANY_ID, PCI_ANY_ID, 240 0, 0, 241 0 242 }, 243 { 244 0x1571, 0xa004, 245 PCI_ANY_ID, PCI_ANY_ID, 246 0, 0, 247 0, 248 }, 249 { 250 0x1571, 0xa005, 251 PCI_ANY_ID, PCI_ANY_ID, 252 0, 0, 253 0 254 }, 255 { 256 0x1571, 0xa006, 257 PCI_ANY_ID, PCI_ANY_ID, 258 0, 0, 259 0 260 }, 261 { 262 0x1571, 0xa007, 263 PCI_ANY_ID, PCI_ANY_ID, 264 0, 0, 265 0 266 }, 267 { 268 0x1571, 0xa008, 269 PCI_ANY_ID, PCI_ANY_ID, 270 0, 0, 271 0 272 }, 273 { 274 0x1571, 0xa009, 275 PCI_ANY_ID, PCI_ANY_ID, 276 0, 0, 277 (kernel_ulong_t)&card_info_5mbit 278 }, 279 { 280 0x1571, 0xa00a, 281 PCI_ANY_ID, PCI_ANY_ID, 282 0, 0, 283 (kernel_ulong_t)&card_info_5mbit 284 }, 285 { 286 0x1571, 0xa00b, 287 PCI_ANY_ID, PCI_ANY_ID, 288 0, 0, 289 (kernel_ulong_t)&card_info_5mbit 290 }, 291 { 292 0x1571, 0xa00c, 293 PCI_ANY_ID, PCI_ANY_ID, 294 0, 0, 295 (kernel_ulong_t)&card_info_5mbit 296 }, 297 { 298 0x1571, 0xa00d, 299 PCI_ANY_ID, PCI_ANY_ID, 300 0, 0, 301 (kernel_ulong_t)&card_info_5mbit 302 }, 303 { 304 0x1571, 0xa00e, 305 PCI_ANY_ID, PCI_ANY_ID, 306 0, 0, 307 (kernel_ulong_t)&card_info_5mbit 308 }, 309 { 310 0x1571, 0xa201, 311 PCI_ANY_ID, PCI_ANY_ID, 312 0, 0, 313 (kernel_ulong_t)&card_info_10mbit 314 }, 315 { 316 0x1571, 0xa202, 317 PCI_ANY_ID, PCI_ANY_ID, 318 0, 0, 319 (kernel_ulong_t)&card_info_10mbit 320 }, 321 { 322 0x1571, 0xa203, 323 PCI_ANY_ID, PCI_ANY_ID, 324 0, 0, 325 (kernel_ulong_t)&card_info_10mbit 326 }, 327 { 328 0x1571, 0xa204, 329 PCI_ANY_ID, PCI_ANY_ID, 330 0, 0, 331 (kernel_ulong_t)&card_info_10mbit 332 }, 333 { 334 0x1571, 0xa205, 335 PCI_ANY_ID, PCI_ANY_ID, 336 0, 0, 337 (kernel_ulong_t)&card_info_10mbit 338 }, 339 { 340 0x1571, 0xa206, 341 PCI_ANY_ID, PCI_ANY_ID, 342 0, 0, 343 (kernel_ulong_t)&card_info_10mbit 344 }, 345 { 346 0x10B5, 0x9030, 347 0x10B5, 0x2978, 348 0, 0, 349 (kernel_ulong_t)&card_info_sohard 350 }, 351 { 352 0x10B5, 0x9050, 353 0x10B5, 0x2273, 354 0, 0, 355 (kernel_ulong_t)&card_info_sohard 356 }, 357 { 358 0x10B5, 0x9050, 359 0x10B5, 0x3292, 360 0, 0, 361 (kernel_ulong_t)&card_info_eae 362 }, 363 { 364 0x14BA, 0x6000, 365 PCI_ANY_ID, PCI_ANY_ID, 366 0, 0, 367 (kernel_ulong_t)&card_info_10mbit 368 }, 369 { 370 0x10B5, 0x2200, 371 PCI_ANY_ID, PCI_ANY_ID, 372 0, 0, 373 (kernel_ulong_t)&card_info_10mbit 374 }, 375 { 0, } 376}; 377 378MODULE_DEVICE_TABLE(pci, com20020pci_id_table); 379 380static struct pci_driver com20020pci_driver = { 381 .name = "com20020", 382 .id_table = com20020pci_id_table, 383 .probe = com20020pci_probe, 384 .remove = com20020pci_remove, 385}; 386 387static int __init com20020pci_init(void) 388{ 389 BUGLVL(D_NORMAL) printk(VERSION); 390 return pci_register_driver(&com20020pci_driver); 391} 392 393static void __exit com20020pci_cleanup(void) 394{ 395 pci_unregister_driver(&com20020pci_driver); 396} 397 398module_init(com20020pci_init) 399module_exit(com20020pci_cleanup) 400