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/system.h> 35#include <asm/io.h> 36#include <asm/irq.h> 37#include <asm/pci.h> 38#include <asm/dma.h> 39 40#include "tms380tr.h" 41 42#define PROTEON_IO_EXTENT 32 43 44/* A zero-terminated list of I/O addresses to be probed. */ 45static unsigned int portlist[] __initdata = { 46 0x0A20, 0x0E20, 0x1A20, 0x1E20, 0x2A20, 0x2E20, 0x3A20, 0x3E20,// Prot. 47 0x4A20, 0x4E20, 0x5A20, 0x5E20, 0x6A20, 0x6E20, 0x7A20, 0x7E20,// Prot. 48 0x8A20, 0x8E20, 0x9A20, 0x9E20, 0xAA20, 0xAE20, 0xBA20, 0xBE20,// Prot. 49 0xCA20, 0xCE20, 0xDA20, 0xDE20, 0xEA20, 0xEE20, 0xFA20, 0xFE20,// Prot. 50 0 51}; 52 53/* A zero-terminated list of IRQs to be probed. */ 54static unsigned short irqlist[] = { 55 7, 6, 5, 4, 3, 12, 11, 10, 9, 56 0 57}; 58 59/* A zero-terminated list of DMAs to be probed. */ 60static int dmalist[] __initdata = { 61 5, 6, 7, 62 0 63}; 64 65static char cardname[] = "Proteon 1392\0"; 66static u64 dma_mask = ISA_MAX_ADDRESS; 67static int proteon_open(struct net_device *dev); 68static void proteon_read_eeprom(struct net_device *dev); 69static unsigned short proteon_setnselout_pins(struct net_device *dev); 70 71static unsigned short proteon_sifreadb(struct net_device *dev, unsigned short reg) 72{ 73 return inb(dev->base_addr + reg); 74} 75 76static unsigned short proteon_sifreadw(struct net_device *dev, unsigned short reg) 77{ 78 return inw(dev->base_addr + reg); 79} 80 81static void proteon_sifwriteb(struct net_device *dev, unsigned short val, unsigned short reg) 82{ 83 outb(val, dev->base_addr + reg); 84} 85 86static void proteon_sifwritew(struct net_device *dev, unsigned short val, unsigned short reg) 87{ 88 outw(val, dev->base_addr + reg); 89} 90 91static int __init proteon_probe1(struct net_device *dev, int ioaddr) 92{ 93 unsigned char chk1, chk2; 94 int i; 95 96 if (!request_region(ioaddr, PROTEON_IO_EXTENT, cardname)) 97 return -ENODEV; 98 99 100 chk1 = inb(ioaddr + 0x1f); /* Get Proteon ID reg 1 */ 101 if (chk1 != 0x1f) 102 goto nodev; 103 104 chk1 = inb(ioaddr + 0x1e) & 0x07; /* Get Proteon ID reg 0 */ 105 for (i=0; i<16; i++) { 106 chk2 = inb(ioaddr + 0x1e) & 0x07; 107 if (((chk1 + 1) & 0x07) != chk2) 108 goto nodev; 109 chk1 = chk2; 110 } 111 112 dev->base_addr = ioaddr; 113 return (0); 114nodev: 115 release_region(ioaddr, PROTEON_IO_EXTENT); 116 return -ENODEV; 117} 118 119static struct net_device_ops proteon_netdev_ops __read_mostly; 120 121static int __init setup_card(struct net_device *dev, struct device *pdev) 122{ 123 struct net_local *tp; 124 static int versionprinted; 125 const unsigned *port; 126 int j,err = 0; 127 128 if (!dev) 129 return -ENOMEM; 130 131 if (dev->base_addr) /* probe specific location */ 132 err = proteon_probe1(dev, dev->base_addr); 133 else { 134 for (port = portlist; *port; port++) { 135 err = proteon_probe1(dev, *port); 136 if (!err) 137 break; 138 } 139 } 140 if (err) 141 goto out5; 142 143 /* At this point we have found a valid card. */ 144 145 if (versionprinted++ == 0) 146 printk(KERN_DEBUG "%s", version); 147 148 err = -EIO; 149 pdev->dma_mask = &dma_mask; 150 if (tmsdev_init(dev, pdev)) 151 goto out4; 152 153 dev->base_addr &= ~3; 154 155 proteon_read_eeprom(dev); 156 157 printk(KERN_DEBUG "proteon.c: Ring Station Address: %pM\n", 158 dev->dev_addr); 159 160 tp = netdev_priv(dev); 161 tp->setnselout = proteon_setnselout_pins; 162 163 tp->sifreadb = proteon_sifreadb; 164 tp->sifreadw = proteon_sifreadw; 165 tp->sifwriteb = proteon_sifwriteb; 166 tp->sifwritew = proteon_sifwritew; 167 168 memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1); 169 170 tp->tmspriv = NULL; 171 172 dev->netdev_ops = &proteon_netdev_ops; 173 174 if (dev->irq == 0) 175 { 176 for(j = 0; irqlist[j] != 0; j++) 177 { 178 dev->irq = irqlist[j]; 179 if (!request_irq(dev->irq, tms380tr_interrupt, 0, 180 cardname, dev)) 181 break; 182 } 183 184 if(irqlist[j] == 0) 185 { 186 printk(KERN_INFO "proteon.c: AutoSelect no IRQ available\n"); 187 goto out3; 188 } 189 } 190 else 191 { 192 for(j = 0; irqlist[j] != 0; j++) 193 if (irqlist[j] == dev->irq) 194 break; 195 if (irqlist[j] == 0) 196 { 197 printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n", 198 dev->irq); 199 goto out3; 200 } 201 if (request_irq(dev->irq, tms380tr_interrupt, 0, 202 cardname, dev)) 203 { 204 printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n", 205 dev->irq); 206 goto out3; 207 } 208 } 209 210 if (dev->dma == 0) 211 { 212 for(j = 0; dmalist[j] != 0; j++) 213 { 214 dev->dma = dmalist[j]; 215 if (!request_dma(dev->dma, cardname)) 216 break; 217 } 218 219 if(dmalist[j] == 0) 220 { 221 printk(KERN_INFO "proteon.c: AutoSelect no DMA available\n"); 222 goto out2; 223 } 224 } 225 else 226 { 227 for(j = 0; dmalist[j] != 0; j++) 228 if (dmalist[j] == dev->dma) 229 break; 230 if (dmalist[j] == 0) 231 { 232 printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n", 233 dev->dma); 234 goto out2; 235 } 236 if (request_dma(dev->dma, cardname)) 237 { 238 printk(KERN_INFO "proteon.c: Selected DMA %d not available\n", 239 dev->dma); 240 goto out2; 241 } 242 } 243 244 err = register_netdev(dev); 245 if (err) 246 goto out; 247 248 printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n", 249 dev->name, dev->base_addr, dev->irq, dev->dma); 250 251 return 0; 252out: 253 free_dma(dev->dma); 254out2: 255 free_irq(dev->irq, dev); 256out3: 257 tmsdev_term(dev); 258out4: 259 release_region(dev->base_addr, PROTEON_IO_EXTENT); 260out5: 261 return err; 262} 263 264/* 265 * Reads MAC address from adapter RAM, which should've read it from 266 * the onboard ROM. 267 * 268 * Calling this on a board that does not support it can be a very 269 * dangerous thing. The Madge board, for instance, will lock your 270 * machine hard when this is called. Luckily, its supported in a 271 * separate driver. --ASF 272 */ 273static void proteon_read_eeprom(struct net_device *dev) 274{ 275 int i; 276 277 /* Address: 0000:0000 */ 278 proteon_sifwritew(dev, 0, SIFADX); 279 proteon_sifwritew(dev, 0, SIFADR); 280 281 /* Read six byte MAC address data */ 282 dev->addr_len = 6; 283 for(i = 0; i < 6; i++) 284 dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8; 285} 286 287static unsigned short proteon_setnselout_pins(struct net_device *dev) 288{ 289 return 0; 290} 291 292static int proteon_open(struct net_device *dev) 293{ 294 struct net_local *tp = netdev_priv(dev); 295 unsigned short val = 0; 296 int i; 297 298 /* Proteon reset sequence */ 299 outb(0, dev->base_addr + 0x11); 300 mdelay(20); 301 outb(0x04, dev->base_addr + 0x11); 302 mdelay(20); 303 outb(0, dev->base_addr + 0x11); 304 mdelay(100); 305 306 /* set control/status reg */ 307 val = inb(dev->base_addr + 0x11); 308 val |= 0x78; 309 val &= 0xf9; 310 if(tp->DataRate == SPEED_4) 311 val |= 0x20; 312 else 313 val &= ~0x20; 314 315 outb(val, dev->base_addr + 0x11); 316 outb(0xff, dev->base_addr + 0x12); 317 for(i = 0; irqlist[i] != 0; i++) 318 { 319 if(irqlist[i] == dev->irq) 320 break; 321 } 322 val = i; 323 i = (7 - dev->dma) << 4; 324 val |= i; 325 outb(val, dev->base_addr + 0x13); 326 327 return tms380tr_open(dev); 328} 329 330#define ISATR_MAX_ADAPTERS 3 331 332static int io[ISATR_MAX_ADAPTERS]; 333static int irq[ISATR_MAX_ADAPTERS]; 334static int dma[ISATR_MAX_ADAPTERS]; 335 336MODULE_LICENSE("GPL"); 337 338module_param_array(io, int, NULL, 0); 339module_param_array(irq, int, NULL, 0); 340module_param_array(dma, int, NULL, 0); 341 342static struct platform_device *proteon_dev[ISATR_MAX_ADAPTERS]; 343 344static struct platform_driver proteon_driver = { 345 .driver = { 346 .name = "proteon", 347 }, 348}; 349 350static int __init proteon_init(void) 351{ 352 struct net_device *dev; 353 struct platform_device *pdev; 354 int i, num = 0, err = 0; 355 356 proteon_netdev_ops = tms380tr_netdev_ops; 357 proteon_netdev_ops.ndo_open = proteon_open; 358 proteon_netdev_ops.ndo_stop = tms380tr_close; 359 360 err = platform_driver_register(&proteon_driver); 361 if (err) 362 return err; 363 364 for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { 365 dev = alloc_trdev(sizeof(struct net_local)); 366 if (!dev) 367 continue; 368 369 dev->base_addr = io[i]; 370 dev->irq = irq[i]; 371 dev->dma = dma[i]; 372 pdev = platform_device_register_simple("proteon", 373 i, NULL, 0); 374 if (IS_ERR(pdev)) { 375 free_netdev(dev); 376 continue; 377 } 378 err = setup_card(dev, &pdev->dev); 379 if (!err) { 380 proteon_dev[i] = pdev; 381 platform_set_drvdata(pdev, dev); 382 ++num; 383 } else { 384 platform_device_unregister(pdev); 385 free_netdev(dev); 386 } 387 } 388 389 printk(KERN_NOTICE "proteon.c: %d cards found.\n", num); 390 /* Probe for cards. */ 391 if (num == 0) { 392 printk(KERN_NOTICE "proteon.c: No cards found.\n"); 393 platform_driver_unregister(&proteon_driver); 394 return -ENODEV; 395 } 396 return 0; 397} 398 399static void __exit proteon_cleanup(void) 400{ 401 struct net_device *dev; 402 int i; 403 404 for (i = 0; i < ISATR_MAX_ADAPTERS ; i++) { 405 struct platform_device *pdev = proteon_dev[i]; 406 407 if (!pdev) 408 continue; 409 dev = platform_get_drvdata(pdev); 410 unregister_netdev(dev); 411 release_region(dev->base_addr, PROTEON_IO_EXTENT); 412 free_irq(dev->irq, dev); 413 free_dma(dev->dma); 414 tmsdev_term(dev); 415 free_netdev(dev); 416 platform_set_drvdata(pdev, NULL); 417 platform_device_unregister(pdev); 418 } 419 platform_driver_unregister(&proteon_driver); 420} 421 422module_init(proteon_init); 423module_exit(proteon_cleanup); 424