1/* 2 * proteon.c: A network driver for Proteon ISA token ring cards. 3 * 4 * Based on tmspci written 1999 by Adam Fritzler 5 * 6 * Written 2003 by Jochen Friedrich 7 * 8 * This software may be used and distributed according to the terms 9 * of the GNU General Public License, incorporated herein by reference. 10 * 11 * This driver module supports the following cards: 12 * - Proteon 1392, 1392+ 13 * 14 * Maintainer(s): 15 * AF Adam Fritzler 16 * JF Jochen Friedrich jochen@scram.de 17 * 18 * Modification History: 19 * 02-Jan-03 JF Created 20 * 21 */ 22static const char version[] = "proteon.c: v1.00 02/01/2003 by Jochen Friedrich\n"; 23 24#include <linux/module.h> 25#include <linux/kernel.h> 26#include <linux/delay.h> 27#include <linux/errno.h> 28#include <linux/pci.h> 29#include <linux/init.h> 30#include <linux/netdevice.h> 31#include <linux/trdevice.h> 32#include <linux/platform_device.h> 33 34#include <asm/io.h> 35#include <asm/irq.h> 36#include <asm/pci.h> 37#include <asm/dma.h> 38 39#include "tms380tr.h" 40 41#define PROTEON_IO_EXTENT 32 42 43/* A zero-terminated list of I/O addresses to be probed. */ 44static unsigned int portlist[] __initdata = { 45 0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot. 46 0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot. 47 0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot. 48 0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot. 49 0 50}; 51 52/* A zero-terminated list of IRQs to be probed. */ 53static unsigned short irqlist[] = { 54 7, 6, 5, 4, 3, 12, 11, 10, 9, 55 0 56}; 57 58/* A zero-terminated list of DMAs to be probed. */ 59static int dmalist[] __initdata = { 60 5, 6, 7, 61 0 62}; 63 64static char cardname[] = "Proteon 1392\0"; 65static u64 dma_mask = ISA_MAX_ADDRESS; 66static int proteon_open(struct net_device *dev); 67static void proteon_read_eeprom(struct net_device *dev); 68static unsigned short proteon_setnselout_pins(struct net_device *dev); 69 70static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg) 71{ 72 return inb(dev->base_addr + reg); 73} 74 75static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg) 76{ 77 return inw(dev->base_addr + reg); 78} 79 80static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg) 81{ 82 outb(val, dev->base_addr + reg); 83} 84 85static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg) 86{ 87 outw(val, dev->base_addr + reg); 88} 89 90static int __init proteon_probe1(struct net_device *dev, int ioaddr) 91{ 92 unsigned char chk1, chk2; 93 int i; 94 95 if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname)) 96 return -ENODEV; 97 98 99 chk1 = inb(ioaddr + 0x1f); /* Get Proteon ID reg 1 */ 100 if (chk1 != 0x1f) 101 goto nodev; 102 103 chk1 = inb(ioaddr + 0x1e) & 0x07; /* Get Proteon ID reg 0 */ 104 for (i=0; i<16; i++) { 105 chk2 = inb(ioaddr + 0x1e) & 0x07; 106 if (((chk1 + 1) & 0x07) != chk2) 107 goto nodev; 108 chk1 = chk2; 109 } 110 111 dev->base_addr = ioaddr; 112 return 0; 113nodev: 114 release_region(ioaddr, PROTEON_IO_EXTENT); 115 return -ENODEV; 116} 117 118static struct net_device_ops proteon_netdev_ops __read_mostly; 119 120static int __init setup_card(struct net_device *dev, struct device *pdev) 121{ 122 struct net_local *tp; 123 static int versionprinted; 124 const unsigned *port; 125 int j,err = 0; 126 127 if (!dev) 128 return -ENOMEM; 129 130 if (dev->base_addr) /* probe specific location */ 131 err = proteon_probe1(dev, dev->base_addr); 132 else { 133 for (port = portlist; *port; port++) { 134 err = proteon_probe1(dev, *port); 135 if (!err) 136 break; 137 } 138 } 139 if (err) 140 goto out5; 141 142 /* At this point we have found a valid card. */ 143 144 if (versionprinted++ == 0) 145 printk(KERN_DEBUG "%s", version); 146 147 err = -EIO; 148 pdev->dma_mask = &dma_mask; 149 if (tmsdev_init(dev, pdev)) 150 goto out4; 151 152 dev->base_addr &= ~3; 153 154 proteon_read_eeprom(dev); 155 156 printk(KERN_DEBUG "proteon.c: Ring Station Address: %pM\n", 157 dev->dev_addr); 158 159 tp = netdev_priv(dev); 160 tp->setnselout = proteon_setnselout_pins; 161 162 tp->sifreadb = proteon_sifreadb; 163 tp->sifreadw = proteon_sifreadw; 164 tp->sifwriteb = proteon_sifwriteb; 165 tp->sifwritew = proteon_sifwritew; 166 167 memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1); 168 169 tp->tmspriv = NULL; 170 171 dev->netdev_ops = &proteon_netdev_ops; 172 173 if (dev->irq == 0) 174 { 175 for(j = 0; irqlist[j] != 0; j++) 176 { 177 dev->irq = irqlist[j]; 178 if (!request_irq(dev->irq, tms380tr_interrupt, 0, 179 cardname, dev)) 180 break; 181 } 182 183 if(irqlist[j] == 0) 184 { 185 printk(KERN_INFO "proteon.c: AutoSelect no IRQ available\n"); 186 goto out3; 187 } 188 } 189 else 190 { 191 for(j = 0; irqlist[j] != 0; j++) 192 if (irqlist[j] == dev->irq) 193 break; 194 if (irqlist[j] == 0) 195 { 196 printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n", 197 dev->irq); 198 goto out3; 199 } 200 if (request_irq(dev->irq, tms380tr_interrupt, 0, 201 cardname, dev)) 202 { 203 printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n", 204 dev->irq); 205 goto out3; 206 } 207 } 208 209 if (dev->dma == 0) 210 { 211 for(j = 0; dmalist[j] != 0; j++) 212 { 213 dev->dma = dmalist[j]; 214 if (!request_dma(dev->dma, cardname)) 215 break; 216 } 217 218 if(dmalist[j] == 0) 219 { 220 printk(KERN_INFO "proteon.c: AutoSelect no DMA available\n"); 221 goto out2; 222 } 223 } 224 else 225 { 226 for(j = 0; dmalist[j] != 0; j++) 227 if (dmalist[j] == dev->dma) 228 break; 229 if (dmalist[j] == 0) 230 { 231 printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n", 232 dev->dma); 233 goto out2; 234 } 235 if (request_dma(dev->dma, cardname)) 236 { 237 printk(KERN_INFO "proteon.c: Selected DMA %d not available\n", 238 dev->dma); 239 goto out2; 240 } 241 } 242 243 err = register_netdev(dev); 244 if (err) 245 goto out; 246 247 printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n", 248 dev->name, dev->base_addr, dev->irq, dev->dma); 249 250 return 0; 251out: 252 free_dma(dev->dma); 253out2: 254 free_irq(dev->irq, dev); 255out3: 256 tmsdev_term(dev); 257out4: 258 release_region(dev->base_addr, PROTEON_IO_EXTENT); 259out5: 260 return err; 261} 262 263/* 264 * Reads MAC address from adapter RAM, which should've read it from 265 * the onboard ROM. 266 * 267 * Calling this on a board that does not support it can be a very 268 * dangerous thing. The Madge board, for instance, will lock your 269 * machine hard when this is called. Luckily, its supported in a 270 * separate driver. --ASF 271 */ 272static void proteon_read_eeprom(struct net_device *dev) 273{ 274 int i; 275 276 /* Address: 0000:0000 */ 277 proteon_sifwritew(dev, 0, SIFADX); 278 proteon_sifwritew(dev, 0, SIFADR); 279 280 /* Read six byte MAC address data */ 281 dev->addr_len = 6; 282 for(i = 0; i < 6; i++) 283 dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8; 284} 285 286static unsigned short proteon_setnselout_pins(struct net_device *dev) 287{ 288 return 0; 289} 290 291static int proteon_open(struct net_device *dev) 292{ 293 struct net_local *tp = netdev_priv(dev); 294 unsigned short val = 0; 295 int i; 296 297 /* Proteon reset sequence */ 298 outb(0, dev->base_addr + 0x11); 299 mdelay(20); 300 outb(0x04, dev->base_addr + 0x11); 301 mdelay(20); 302 outb(0, dev->base_addr + 0x11); 303 mdelay(100); 304 305 /* set control/status reg */ 306 val = inb(dev->base_addr + 0x11); 307 val |= 0x78; 308 val &= 0xf9; 309 if(tp->DataRate == SPEED_4) 310 val |= 0x20; 311 else 312 val &= ~0x20; 313 314 outb(val, dev->base_addr + 0x11); 315 outb(0xff, dev->base_addr + 0x12); 316 for(i = 0; irqlist[i] != 0; i++) 317 { 318 if(irqlist[i] == dev->irq) 319 break; 320 } 321 val = i; 322 i = (7 - dev->dma) << 4; 323 val |= i; 324 outb(val, dev->base_addr + 0x13); 325 326 return tms380tr_open(dev); 327} 328 329#define ISATR_MAX_ADAPTERS 3 330 331static int io[ISATR_MAX_ADAPTERS]; 332static int irq[ISATR_MAX_ADAPTERS]; 333static int dma[ISATR_MAX_ADAPTERS]; 334 335MODULE_LICENSE("GPL"); 336 337module_param_array(io, int, NULL, 0); 338module_param_array(irq, int, NULL, 0); 339module_param_array(dma, int, NULL, 0); 340 341static struct platform_device *proteon_dev[ISATR_MAX_ADAPTERS]; 342 343static struct platform_driver proteon_driver = { 344 .driver = { 345 .name = "proteon", 346 }, 347}; 348 349static int __init proteon_init(void) 350{ 351 struct net_device *dev; 352 struct platform_device *pdev; 353 int i, num = 0, err = 0; 354 355 proteon_netdev_ops = tms380tr_netdev_ops; 356 proteon_netdev_ops.ndo_open = proteon_open; 357 proteon_netdev_ops.ndo_stop = tms380tr_close; 358 359 err = platform_driver_register(&proteon_driver); 360 if (err) 361 return err; 362 363 for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { 364 dev = alloc_trdev(sizeof(struct net_local)); 365 if (!dev) 366 continue; 367 368 dev->base_addr = io[i]; 369 dev->irq = irq[i]; 370 dev->dma = dma[i]; 371 pdev = platform_device_register_simple("proteon", 372 i, NULL, 0); 373 if (IS_ERR(pdev)) { 374 free_netdev(dev); 375 continue; 376 } 377 err = setup_card(dev, &pdev->dev); 378 if (!err) { 379 proteon_dev[i] = pdev; 380 platform_set_drvdata(pdev, dev); 381 ++num; 382 } else { 383 platform_device_unregister(pdev); 384 free_netdev(dev); 385 } 386 } 387 388 printk(KERN_NOTICE "proteon.c: %d cards found.\n", num); 389 /* Probe for cards. */ 390 if (num == 0) { 391 printk(KERN_NOTICE "proteon.c: No cards found.\n"); 392 platform_driver_unregister(&proteon_driver); 393 return -ENODEV; 394 } 395 return 0; 396} 397 398static void __exit proteon_cleanup(void) 399{ 400 struct net_device *dev; 401 int i; 402 403 for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { 404 struct platform_device *pdev = proteon_dev[i]; 405 406 if (!pdev) 407 continue; 408 dev = platform_get_drvdata(pdev); 409 unregister_netdev(dev); 410 release_region(dev->base_addr, PROTEON_IO_EXTENT); 411 free_irq(dev->irq, dev); 412 free_dma(dev->dma); 413 tmsdev_term(dev); 414 free_netdev(dev); 415 platform_set_drvdata(pdev, NULL); 416 platform_device_unregister(pdev); 417 } 418 platform_driver_unregister(&proteon_driver); 419} 420 421module_init(proteon_init); 422module_exit(proteon_cleanup); 423