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 mid@auk.cx 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 int __init setup_card(struct net_device *dev, struct device *pdev) 120{ 121 struct net_local *tp; 122 static int versionprinted; 123 const unsigned *port; 124 int j,err = 0; 125 126 if (!dev) 127 return -ENOMEM; 128 129 SET_MODULE_OWNER(dev); 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: "); 157 printk("%2.2x", dev->dev_addr[0]); 158 for (j = 1; j < 6; j++) 159 printk(":%2.2x", dev->dev_addr[j]); 160 printk("\n"); 161 162 tp = netdev_priv(dev); 163 tp->setnselout = proteon_setnselout_pins; 164 165 tp->sifreadb = proteon_sifreadb; 166 tp->sifreadw = proteon_sifreadw; 167 tp->sifwriteb = proteon_sifwriteb; 168 tp->sifwritew = proteon_sifwritew; 169 170 memcpy(tp->ProductID, cardname, PROD_ID_SIZE + 1); 171 172 tp->tmspriv = NULL; 173 174 dev->open = proteon_open; 175 dev->stop = tms380tr_close; 176 177 if (dev->irq == 0) 178 { 179 for(j = 0; irqlist[j] != 0; j++) 180 { 181 dev->irq = irqlist[j]; 182 if (!request_irq(dev->irq, tms380tr_interrupt, 0, 183 cardname, dev)) 184 break; 185 } 186 187 if(irqlist[j] == 0) 188 { 189 printk(KERN_INFO "proteon.c: AutoSelect no IRQ available\n"); 190 goto out3; 191 } 192 } 193 else 194 { 195 for(j = 0; irqlist[j] != 0; j++) 196 if (irqlist[j] == dev->irq) 197 break; 198 if (irqlist[j] == 0) 199 { 200 printk(KERN_INFO "proteon.c: Illegal IRQ %d specified\n", 201 dev->irq); 202 goto out3; 203 } 204 if (request_irq(dev->irq, tms380tr_interrupt, 0, 205 cardname, dev)) 206 { 207 printk(KERN_INFO "proteon.c: Selected IRQ %d not available\n", 208 dev->irq); 209 goto out3; 210 } 211 } 212 213 if (dev->dma == 0) 214 { 215 for(j = 0; dmalist[j] != 0; j++) 216 { 217 dev->dma = dmalist[j]; 218 if (!request_dma(dev->dma, cardname)) 219 break; 220 } 221 222 if(dmalist[j] == 0) 223 { 224 printk(KERN_INFO "proteon.c: AutoSelect no DMA available\n"); 225 goto out2; 226 } 227 } 228 else 229 { 230 for(j = 0; dmalist[j] != 0; j++) 231 if (dmalist[j] == dev->dma) 232 break; 233 if (dmalist[j] == 0) 234 { 235 printk(KERN_INFO "proteon.c: Illegal DMA %d specified\n", 236 dev->dma); 237 goto out2; 238 } 239 if (request_dma(dev->dma, cardname)) 240 { 241 printk(KERN_INFO "proteon.c: Selected DMA %d not available\n", 242 dev->dma); 243 goto out2; 244 } 245 } 246 247 err = register_netdev(dev); 248 if (err) 249 goto out; 250 251 printk(KERN_DEBUG "%s: IO: %#4lx IRQ: %d DMA: %d\n", 252 dev->name, dev->base_addr, dev->irq, dev->dma); 253 254 return 0; 255out: 256 free_dma(dev->dma); 257out2: 258 free_irq(dev->irq, dev); 259out3: 260 tmsdev_term(dev); 261out4: 262 release_region(dev->base_addr, PROTEON_IO_EXTENT); 263out5: 264 return err; 265} 266 267/* 268 * Reads MAC address from adapter RAM, which should've read it from 269 * the onboard ROM. 270 * 271 * Calling this on a board that does not support it can be a very 272 * dangerous thing. The Madge board, for instance, will lock your 273 * machine hard when this is called. Luckily, its supported in a 274 * separate driver. --ASF 275 */ 276static void proteon_read_eeprom(struct net_device *dev) 277{ 278 int i; 279 280 /* Address: 0000:0000 */ 281 proteon_sifwritew(dev, 0, SIFADX); 282 proteon_sifwritew(dev, 0, SIFADR); 283 284 /* Read six byte MAC address data */ 285 dev->addr_len = 6; 286 for(i = 0; i < 6; i++) 287 dev->dev_addr[i] = proteon_sifreadw(dev, SIFINC) >> 8; 288} 289 290unsigned short proteon_setnselout_pins(struct net_device *dev) 291{ 292 return 0; 293} 294 295static int proteon_open(struct net_device *dev) 296{ 297 struct net_local *tp = netdev_priv(dev); 298 unsigned short val = 0; 299 int i; 300 301 /* Proteon reset sequence */ 302 outb(0, dev->base_addr + 0x11); 303 mdelay(20); 304 outb(0x04, dev->base_addr + 0x11); 305 mdelay(20); 306 outb(0, dev->base_addr + 0x11); 307 mdelay(100); 308 309 /* set control/status reg */ 310 val = inb(dev->base_addr + 0x11); 311 val |= 0x78; 312 val &= 0xf9; 313 if(tp->DataRate == SPEED_4) 314 val |= 0x20; 315 else 316 val &= ~0x20; 317 318 outb(val, dev->base_addr + 0x11); 319 outb(0xff, dev->base_addr + 0x12); 320 for(i = 0; irqlist[i] != 0; i++) 321 { 322 if(irqlist[i] == dev->irq) 323 break; 324 } 325 val = i; 326 i = (7 - dev->dma) << 4; 327 val |= i; 328 outb(val, dev->base_addr + 0x13); 329 330 return tms380tr_open(dev); 331} 332 333#define ISATR_MAX_ADAPTERS 3 334 335static int io[ISATR_MAX_ADAPTERS]; 336static int irq[ISATR_MAX_ADAPTERS]; 337static int dma[ISATR_MAX_ADAPTERS]; 338 339MODULE_LICENSE("GPL"); 340 341module_param_array(io, int, NULL, 0); 342module_param_array(irq, int, NULL, 0); 343module_param_array(dma, int, NULL, 0); 344 345static struct platform_device *proteon_dev[ISATR_MAX_ADAPTERS]; 346 347static struct platform_driver proteon_driver = { 348 .driver = { 349 .name = "proteon", 350 }, 351}; 352 353static int __init proteon_init(void) 354{ 355 struct net_device *dev; 356 struct platform_device *pdev; 357 int i, num = 0, err = 0; 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