Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* ne2k-pci.c: A NE2000 clone on PCI bus driver for Linux. */ |
| 2 | /* |
| 3 | A Linux device driver for PCI NE2000 clones. |
| 4 | |
| 5 | Authors and other copyright holders: |
| 6 | 1992-2000 by Donald Becker, NE2000 core and various modifications. |
| 7 | 1995-1998 by Paul Gortmaker, core modifications and PCI support. |
| 8 | Copyright 1993 assigned to the United States Government as represented |
| 9 | by the Director, National Security Agency. |
| 10 | |
| 11 | This software may be used and distributed according to the terms of |
| 12 | the GNU General Public License (GPL), incorporated herein by reference. |
| 13 | Drivers based on or derived from this code fall under the GPL and must |
| 14 | retain the authorship, copyright and license notice. This file is not |
| 15 | a complete program and may only be used when the entire operating |
| 16 | system is licensed under the GPL. |
| 17 | |
| 18 | The author may be reached as becker@scyld.com, or C/O |
| 19 | Scyld Computing Corporation |
| 20 | 410 Severn Ave., Suite 210 |
| 21 | Annapolis MD 21403 |
| 22 | |
| 23 | Issues remaining: |
| 24 | People are making PCI ne2000 clones! Oh the horror, the horror... |
| 25 | Limited full-duplex support. |
| 26 | */ |
| 27 | |
| 28 | #define DRV_NAME "ne2k-pci" |
| 29 | #define DRV_VERSION "1.03" |
| 30 | #define DRV_RELDATE "9/22/2003" |
| 31 | |
| 32 | |
| 33 | /* The user-configurable values. |
| 34 | These may be modified when a driver module is loaded.*/ |
| 35 | |
| 36 | static int debug = 1; /* 1 normal messages, 0 quiet .. 7 verbose. */ |
| 37 | |
| 38 | #define MAX_UNITS 8 /* More are supported, limit only on options */ |
| 39 | /* Used to pass the full-duplex flag, etc. */ |
| 40 | static int full_duplex[MAX_UNITS]; |
| 41 | static int options[MAX_UNITS]; |
| 42 | |
| 43 | /* Force a non std. amount of memory. Units are 256 byte pages. */ |
| 44 | /* #define PACKETBUF_MEMSIZE 0x40 */ |
| 45 | |
| 46 | |
| 47 | #include <linux/module.h> |
| 48 | #include <linux/kernel.h> |
| 49 | #include <linux/errno.h> |
| 50 | #include <linux/pci.h> |
| 51 | #include <linux/init.h> |
| 52 | #include <linux/interrupt.h> |
| 53 | #include <linux/ethtool.h> |
| 54 | #include <linux/netdevice.h> |
| 55 | #include <linux/etherdevice.h> |
| 56 | |
| 57 | #include <asm/system.h> |
| 58 | #include <asm/io.h> |
| 59 | #include <asm/irq.h> |
| 60 | #include <asm/uaccess.h> |
| 61 | |
| 62 | #include "8390.h" |
| 63 | |
| 64 | /* These identify the driver base version and may not be removed. */ |
| 65 | static char version[] __devinitdata = |
Markus Dahms | 2c2a8c5 | 2007-05-09 07:58:10 +0200 | [diff] [blame] | 66 | KERN_INFO DRV_NAME ".c:v" DRV_VERSION " " DRV_RELDATE " D. Becker/P. Gortmaker\n"; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 67 | |
| 68 | #if defined(__powerpc__) |
| 69 | #define inl_le(addr) le32_to_cpu(inl(addr)) |
| 70 | #define inw_le(addr) le16_to_cpu(inw(addr)) |
| 71 | #endif |
| 72 | |
| 73 | #define PFX DRV_NAME ": " |
| 74 | |
| 75 | MODULE_AUTHOR("Donald Becker / Paul Gortmaker"); |
| 76 | MODULE_DESCRIPTION("PCI NE2000 clone driver"); |
| 77 | MODULE_LICENSE("GPL"); |
| 78 | |
| 79 | module_param(debug, int, 0); |
| 80 | module_param_array(options, int, NULL, 0); |
| 81 | module_param_array(full_duplex, int, NULL, 0); |
| 82 | MODULE_PARM_DESC(debug, "debug level (1-2)"); |
| 83 | MODULE_PARM_DESC(options, "Bit 5: full duplex"); |
| 84 | MODULE_PARM_DESC(full_duplex, "full duplex setting(s) (1)"); |
| 85 | |
| 86 | /* Some defines that people can play with if so inclined. */ |
| 87 | |
| 88 | /* Use 32 bit data-movement operations instead of 16 bit. */ |
| 89 | #define USE_LONGIO |
| 90 | |
| 91 | /* Do we implement the read before write bugfix ? */ |
| 92 | /* #define NE_RW_BUGFIX */ |
| 93 | |
| 94 | /* Flags. We rename an existing ei_status field to store flags! */ |
| 95 | /* Thus only the low 8 bits are usable for non-init-time flags. */ |
| 96 | #define ne2k_flags reg0 |
| 97 | enum { |
| 98 | ONLY_16BIT_IO=8, ONLY_32BIT_IO=4, /* Chip can do only 16/32-bit xfers. */ |
| 99 | FORCE_FDX=0x20, /* User override. */ |
| 100 | REALTEK_FDX=0x40, HOLTEK_FDX=0x80, |
| 101 | STOP_PG_0x60=0x100, |
| 102 | }; |
| 103 | |
| 104 | enum ne2k_pci_chipsets { |
| 105 | CH_RealTek_RTL_8029 = 0, |
| 106 | CH_Winbond_89C940, |
| 107 | CH_Compex_RL2000, |
| 108 | CH_KTI_ET32P2, |
| 109 | CH_NetVin_NV5000SC, |
| 110 | CH_Via_86C926, |
| 111 | CH_SureCom_NE34, |
| 112 | CH_Winbond_W89C940F, |
| 113 | CH_Holtek_HT80232, |
| 114 | CH_Holtek_HT80229, |
| 115 | CH_Winbond_89C940_8c4a, |
| 116 | }; |
| 117 | |
| 118 | |
Horms | b2fd16b | 2006-03-23 16:36:28 +0900 | [diff] [blame] | 119 | static struct { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 120 | char *name; |
| 121 | int flags; |
| 122 | } pci_clone_list[] __devinitdata = { |
| 123 | {"RealTek RTL-8029", REALTEK_FDX}, |
| 124 | {"Winbond 89C940", 0}, |
| 125 | {"Compex RL2000", 0}, |
| 126 | {"KTI ET32P2", 0}, |
| 127 | {"NetVin NV5000SC", 0}, |
| 128 | {"Via 86C926", ONLY_16BIT_IO}, |
| 129 | {"SureCom NE34", 0}, |
| 130 | {"Winbond W89C940F", 0}, |
| 131 | {"Holtek HT80232", ONLY_16BIT_IO | HOLTEK_FDX}, |
| 132 | {"Holtek HT80229", ONLY_32BIT_IO | HOLTEK_FDX | STOP_PG_0x60 }, |
| 133 | {"Winbond W89C940(misprogrammed)", 0}, |
| 134 | {NULL,} |
| 135 | }; |
| 136 | |
| 137 | |
| 138 | static struct pci_device_id ne2k_pci_tbl[] = { |
| 139 | { 0x10ec, 0x8029, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_RealTek_RTL_8029 }, |
| 140 | { 0x1050, 0x0940, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940 }, |
| 141 | { 0x11f6, 0x1401, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Compex_RL2000 }, |
| 142 | { 0x8e2e, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_KTI_ET32P2 }, |
| 143 | { 0x4a14, 0x5000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_NetVin_NV5000SC }, |
| 144 | { 0x1106, 0x0926, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Via_86C926 }, |
| 145 | { 0x10bd, 0x0e34, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_SureCom_NE34 }, |
| 146 | { 0x1050, 0x5a5a, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_W89C940F }, |
| 147 | { 0x12c3, 0x0058, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80232 }, |
| 148 | { 0x12c3, 0x5598, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Holtek_HT80229 }, |
| 149 | { 0x8c4a, 0x1980, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Winbond_89C940_8c4a }, |
| 150 | { 0, } |
| 151 | }; |
| 152 | MODULE_DEVICE_TABLE(pci, ne2k_pci_tbl); |
| 153 | |
| 154 | |
| 155 | /* ---- No user-serviceable parts below ---- */ |
| 156 | |
| 157 | #define NE_BASE (dev->base_addr) |
| 158 | #define NE_CMD 0x00 |
| 159 | #define NE_DATAPORT 0x10 /* NatSemi-defined port window offset. */ |
| 160 | #define NE_RESET 0x1f /* Issue a read to reset, a write to clear. */ |
| 161 | #define NE_IO_EXTENT 0x20 |
| 162 | |
| 163 | #define NESM_START_PG 0x40 /* First page of TX buffer */ |
| 164 | #define NESM_STOP_PG 0x80 /* Last page +1 of RX ring */ |
| 165 | |
| 166 | |
| 167 | static int ne2k_pci_open(struct net_device *dev); |
| 168 | static int ne2k_pci_close(struct net_device *dev); |
| 169 | |
| 170 | static void ne2k_pci_reset_8390(struct net_device *dev); |
| 171 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, |
| 172 | int ring_page); |
| 173 | static void ne2k_pci_block_input(struct net_device *dev, int count, |
| 174 | struct sk_buff *skb, int ring_offset); |
| 175 | static void ne2k_pci_block_output(struct net_device *dev, const int count, |
| 176 | const unsigned char *buf, const int start_page); |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 177 | static const struct ethtool_ops ne2k_pci_ethtool_ops; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 178 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 179 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 180 | |
| 181 | /* There is no room in the standard 8390 structure for extra info we need, |
| 182 | so we build a meta/outer-wrapper structure.. */ |
| 183 | struct ne2k_pci_card { |
| 184 | struct net_device *dev; |
| 185 | struct pci_dev *pci_dev; |
| 186 | }; |
| 187 | |
| 188 | |
| 189 | |
| 190 | /* |
| 191 | NEx000-clone boards have a Station Address (SA) PROM (SAPROM) in the packet |
| 192 | buffer memory space. By-the-spec NE2000 clones have 0x57,0x57 in bytes |
| 193 | 0x0e,0x0f of the SAPROM, while other supposed NE2000 clones must be |
| 194 | detected by their SA prefix. |
| 195 | |
| 196 | Reading the SAPROM from a word-wide card with the 8390 set in byte-wide |
| 197 | mode results in doubled values, which can be detected and compensated for. |
| 198 | |
| 199 | The probe is also responsible for initializing the card and filling |
| 200 | in the 'dev' and 'ei_status' structures. |
| 201 | */ |
| 202 | |
| 203 | |
| 204 | static int __devinit ne2k_pci_init_one (struct pci_dev *pdev, |
| 205 | const struct pci_device_id *ent) |
| 206 | { |
| 207 | struct net_device *dev; |
| 208 | int i; |
| 209 | unsigned char SA_prom[32]; |
| 210 | int start_page, stop_page; |
| 211 | int irq, reg0, chip_idx = ent->driver_data; |
| 212 | static unsigned int fnd_cnt; |
| 213 | long ioaddr; |
| 214 | int flags = pci_clone_list[chip_idx].flags; |
| 215 | |
| 216 | /* when built into the kernel, we only print version if device is found */ |
| 217 | #ifndef MODULE |
| 218 | static int printed_version; |
| 219 | if (!printed_version++) |
| 220 | printk(version); |
| 221 | #endif |
| 222 | |
| 223 | fnd_cnt++; |
| 224 | |
| 225 | i = pci_enable_device (pdev); |
| 226 | if (i) |
| 227 | return i; |
| 228 | |
| 229 | ioaddr = pci_resource_start (pdev, 0); |
| 230 | irq = pdev->irq; |
| 231 | |
| 232 | if (!ioaddr || ((pci_resource_flags (pdev, 0) & IORESOURCE_IO) == 0)) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 233 | dev_err(&pdev->dev, "no I/O resource at PCI BAR #0\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 234 | return -ENODEV; |
| 235 | } |
| 236 | |
| 237 | if (request_region (ioaddr, NE_IO_EXTENT, DRV_NAME) == NULL) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 238 | dev_err(&pdev->dev, "I/O resource 0x%x @ 0x%lx busy\n", |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 239 | NE_IO_EXTENT, ioaddr); |
| 240 | return -EBUSY; |
| 241 | } |
| 242 | |
| 243 | reg0 = inb(ioaddr); |
| 244 | if (reg0 == 0xFF) |
| 245 | goto err_out_free_res; |
| 246 | |
| 247 | /* Do a preliminary verification that we have a 8390. */ |
| 248 | { |
| 249 | int regd; |
| 250 | outb(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD); |
| 251 | regd = inb(ioaddr + 0x0d); |
| 252 | outb(0xff, ioaddr + 0x0d); |
| 253 | outb(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD); |
| 254 | inb(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */ |
| 255 | if (inb(ioaddr + EN0_COUNTER0) != 0) { |
| 256 | outb(reg0, ioaddr); |
| 257 | outb(regd, ioaddr + 0x0d); /* Restore the old values. */ |
| 258 | goto err_out_free_res; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | /* Allocate net_device, dev->priv; fill in 8390 specific dev fields. */ |
| 263 | dev = alloc_ei_netdev(); |
| 264 | if (!dev) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 265 | dev_err(&pdev->dev, "cannot allocate ethernet device\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 266 | goto err_out_free_res; |
| 267 | } |
| 268 | SET_MODULE_OWNER(dev); |
| 269 | SET_NETDEV_DEV(dev, &pdev->dev); |
| 270 | |
| 271 | /* Reset card. Who knows what dain-bramaged state it was left in. */ |
| 272 | { |
| 273 | unsigned long reset_start_time = jiffies; |
| 274 | |
| 275 | outb(inb(ioaddr + NE_RESET), ioaddr + NE_RESET); |
| 276 | |
| 277 | /* This looks like a horrible timing loop, but it should never take |
| 278 | more than a few cycles. |
| 279 | */ |
| 280 | while ((inb(ioaddr + EN0_ISR) & ENISR_RESET) == 0) |
| 281 | /* Limit wait: '2' avoids jiffy roll-over. */ |
| 282 | if (jiffies - reset_start_time > 2) { |
Jeff Garzik | 9b91cf9 | 2006-06-27 11:39:50 -0400 | [diff] [blame] | 283 | dev_err(&pdev->dev, |
Jeff Garzik | 2e8a538 | 2006-06-27 10:47:51 -0400 | [diff] [blame] | 284 | "Card failure (no reset ack).\n"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 285 | goto err_out_free_netdev; |
| 286 | } |
| 287 | |
| 288 | outb(0xff, ioaddr + EN0_ISR); /* Ack all intr. */ |
| 289 | } |
| 290 | |
| 291 | /* Read the 16 bytes of station address PROM. |
| 292 | We must first initialize registers, similar to NS8390_init(eifdev, 0). |
| 293 | We can't reliably read the SAPROM address without this. |
| 294 | (I learned the hard way!). */ |
| 295 | { |
| 296 | struct {unsigned char value, offset; } program_seq[] = { |
| 297 | {E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/ |
| 298 | {0x49, EN0_DCFG}, /* Set word-wide access. */ |
| 299 | {0x00, EN0_RCNTLO}, /* Clear the count regs. */ |
| 300 | {0x00, EN0_RCNTHI}, |
| 301 | {0x00, EN0_IMR}, /* Mask completion irq. */ |
| 302 | {0xFF, EN0_ISR}, |
| 303 | {E8390_RXOFF, EN0_RXCR}, /* 0x20 Set to monitor */ |
| 304 | {E8390_TXOFF, EN0_TXCR}, /* 0x02 and loopback mode. */ |
| 305 | {32, EN0_RCNTLO}, |
| 306 | {0x00, EN0_RCNTHI}, |
| 307 | {0x00, EN0_RSARLO}, /* DMA starting at 0x0000. */ |
| 308 | {0x00, EN0_RSARHI}, |
| 309 | {E8390_RREAD+E8390_START, E8390_CMD}, |
| 310 | }; |
| 311 | for (i = 0; i < sizeof(program_seq)/sizeof(program_seq[0]); i++) |
| 312 | outb(program_seq[i].value, ioaddr + program_seq[i].offset); |
| 313 | |
| 314 | } |
| 315 | |
| 316 | /* Note: all PCI cards have at least 16 bit access, so we don't have |
| 317 | to check for 8 bit cards. Most cards permit 32 bit access. */ |
| 318 | if (flags & ONLY_32BIT_IO) { |
| 319 | for (i = 0; i < 4 ; i++) |
| 320 | ((u32 *)SA_prom)[i] = le32_to_cpu(inl(ioaddr + NE_DATAPORT)); |
| 321 | } else |
| 322 | for(i = 0; i < 32 /*sizeof(SA_prom)*/; i++) |
| 323 | SA_prom[i] = inb(ioaddr + NE_DATAPORT); |
| 324 | |
| 325 | /* We always set the 8390 registers for word mode. */ |
| 326 | outb(0x49, ioaddr + EN0_DCFG); |
| 327 | start_page = NESM_START_PG; |
| 328 | |
| 329 | stop_page = flags & STOP_PG_0x60 ? 0x60 : NESM_STOP_PG; |
| 330 | |
| 331 | /* Set up the rest of the parameters. */ |
| 332 | dev->irq = irq; |
| 333 | dev->base_addr = ioaddr; |
| 334 | pci_set_drvdata(pdev, dev); |
| 335 | |
| 336 | ei_status.name = pci_clone_list[chip_idx].name; |
| 337 | ei_status.tx_start_page = start_page; |
| 338 | ei_status.stop_page = stop_page; |
| 339 | ei_status.word16 = 1; |
| 340 | ei_status.ne2k_flags = flags; |
| 341 | if (fnd_cnt < MAX_UNITS) { |
| 342 | if (full_duplex[fnd_cnt] > 0 || (options[fnd_cnt] & FORCE_FDX)) |
| 343 | ei_status.ne2k_flags |= FORCE_FDX; |
| 344 | } |
| 345 | |
| 346 | ei_status.rx_start_page = start_page + TX_PAGES; |
| 347 | #ifdef PACKETBUF_MEMSIZE |
| 348 | /* Allow the packet buffer size to be overridden by know-it-alls. */ |
| 349 | ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE; |
| 350 | #endif |
| 351 | |
| 352 | ei_status.reset_8390 = &ne2k_pci_reset_8390; |
| 353 | ei_status.block_input = &ne2k_pci_block_input; |
| 354 | ei_status.block_output = &ne2k_pci_block_output; |
| 355 | ei_status.get_8390_hdr = &ne2k_pci_get_8390_hdr; |
| 356 | ei_status.priv = (unsigned long) pdev; |
| 357 | dev->open = &ne2k_pci_open; |
| 358 | dev->stop = &ne2k_pci_close; |
| 359 | dev->ethtool_ops = &ne2k_pci_ethtool_ops; |
| 360 | #ifdef CONFIG_NET_POLL_CONTROLLER |
| 361 | dev->poll_controller = ei_poll; |
| 362 | #endif |
| 363 | NS8390_init(dev, 0); |
| 364 | |
| 365 | i = register_netdev(dev); |
| 366 | if (i) |
| 367 | goto err_out_free_netdev; |
| 368 | |
| 369 | printk("%s: %s found at %#lx, IRQ %d, ", |
| 370 | dev->name, pci_clone_list[chip_idx].name, ioaddr, dev->irq); |
| 371 | for(i = 0; i < 6; i++) { |
| 372 | printk("%2.2X%s", SA_prom[i], i == 5 ? ".\n": ":"); |
| 373 | dev->dev_addr[i] = SA_prom[i]; |
| 374 | } |
John W. Linville | 78b3458 | 2005-09-12 10:48:57 -0400 | [diff] [blame] | 375 | memcpy(dev->perm_addr, dev->dev_addr, dev->addr_len); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 376 | |
| 377 | return 0; |
| 378 | |
| 379 | err_out_free_netdev: |
| 380 | free_netdev (dev); |
| 381 | err_out_free_res: |
| 382 | release_region (ioaddr, NE_IO_EXTENT); |
| 383 | pci_set_drvdata (pdev, NULL); |
| 384 | return -ENODEV; |
| 385 | |
| 386 | } |
| 387 | |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 388 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 389 | * Magic incantation sequence for full duplex on the supported cards. |
| 390 | */ |
| 391 | static inline int set_realtek_fdx(struct net_device *dev) |
| 392 | { |
| 393 | long ioaddr = dev->base_addr; |
| 394 | |
| 395 | outb(0xC0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 3 */ |
| 396 | outb(0xC0, ioaddr + 0x01); /* Enable writes to CONFIG3 */ |
| 397 | outb(0x40, ioaddr + 0x06); /* Enable full duplex */ |
| 398 | outb(0x00, ioaddr + 0x01); /* Disable writes to CONFIG3 */ |
| 399 | outb(E8390_PAGE0 + E8390_NODMA, ioaddr + NE_CMD); /* Page 0 */ |
| 400 | return 0; |
| 401 | } |
| 402 | |
| 403 | static inline int set_holtek_fdx(struct net_device *dev) |
| 404 | { |
| 405 | long ioaddr = dev->base_addr; |
| 406 | |
| 407 | outb(inb(ioaddr + 0x20) | 0x80, ioaddr + 0x20); |
| 408 | return 0; |
| 409 | } |
| 410 | |
| 411 | static int ne2k_pci_set_fdx(struct net_device *dev) |
| 412 | { |
Jeff Garzik | 6aa20a2 | 2006-09-13 13:24:59 -0400 | [diff] [blame] | 413 | if (ei_status.ne2k_flags & REALTEK_FDX) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 414 | return set_realtek_fdx(dev); |
| 415 | else if (ei_status.ne2k_flags & HOLTEK_FDX) |
| 416 | return set_holtek_fdx(dev); |
| 417 | |
| 418 | return -EOPNOTSUPP; |
| 419 | } |
| 420 | |
| 421 | static int ne2k_pci_open(struct net_device *dev) |
| 422 | { |
Thomas Gleixner | 1fb9df5 | 2006-07-01 19:29:39 -0700 | [diff] [blame] | 423 | int ret = request_irq(dev->irq, ei_interrupt, IRQF_SHARED, dev->name, dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 424 | if (ret) |
| 425 | return ret; |
| 426 | |
| 427 | if (ei_status.ne2k_flags & FORCE_FDX) |
| 428 | ne2k_pci_set_fdx(dev); |
| 429 | |
| 430 | ei_open(dev); |
| 431 | return 0; |
| 432 | } |
| 433 | |
| 434 | static int ne2k_pci_close(struct net_device *dev) |
| 435 | { |
| 436 | ei_close(dev); |
| 437 | free_irq(dev->irq, dev); |
| 438 | return 0; |
| 439 | } |
| 440 | |
| 441 | /* Hard reset the card. This used to pause for the same period that a |
| 442 | 8390 reset command required, but that shouldn't be necessary. */ |
| 443 | static void ne2k_pci_reset_8390(struct net_device *dev) |
| 444 | { |
| 445 | unsigned long reset_start_time = jiffies; |
| 446 | |
| 447 | if (debug > 1) printk("%s: Resetting the 8390 t=%ld...", |
| 448 | dev->name, jiffies); |
| 449 | |
| 450 | outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET); |
| 451 | |
| 452 | ei_status.txing = 0; |
| 453 | ei_status.dmaing = 0; |
| 454 | |
| 455 | /* This check _should_not_ be necessary, omit eventually. */ |
| 456 | while ((inb(NE_BASE+EN0_ISR) & ENISR_RESET) == 0) |
| 457 | if (jiffies - reset_start_time > 2) { |
| 458 | printk("%s: ne2k_pci_reset_8390() did not complete.\n", dev->name); |
| 459 | break; |
| 460 | } |
| 461 | outb(ENISR_RESET, NE_BASE + EN0_ISR); /* Ack intr. */ |
| 462 | } |
| 463 | |
| 464 | /* Grab the 8390 specific header. Similar to the block_input routine, but |
| 465 | we don't need to be concerned with ring wrap as the header will be at |
| 466 | the start of a page, so we optimize accordingly. */ |
| 467 | |
| 468 | static void ne2k_pci_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page) |
| 469 | { |
| 470 | |
| 471 | long nic_base = dev->base_addr; |
| 472 | |
| 473 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
| 474 | if (ei_status.dmaing) { |
| 475 | printk("%s: DMAing conflict in ne2k_pci_get_8390_hdr " |
| 476 | "[DMAstat:%d][irqlock:%d].\n", |
| 477 | dev->name, ei_status.dmaing, ei_status.irqlock); |
| 478 | return; |
| 479 | } |
| 480 | |
| 481 | ei_status.dmaing |= 0x01; |
| 482 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); |
| 483 | outb(sizeof(struct e8390_pkt_hdr), nic_base + EN0_RCNTLO); |
| 484 | outb(0, nic_base + EN0_RCNTHI); |
| 485 | outb(0, nic_base + EN0_RSARLO); /* On page boundary */ |
| 486 | outb(ring_page, nic_base + EN0_RSARHI); |
| 487 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| 488 | |
| 489 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { |
| 490 | insw(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr)>>1); |
| 491 | } else { |
| 492 | *(u32*)hdr = le32_to_cpu(inl(NE_BASE + NE_DATAPORT)); |
| 493 | le16_to_cpus(&hdr->count); |
| 494 | } |
| 495 | |
| 496 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
| 497 | ei_status.dmaing &= ~0x01; |
| 498 | } |
| 499 | |
| 500 | /* Block input and output, similar to the Crynwr packet driver. If you |
| 501 | are porting to a new ethercard, look at the packet driver source for hints. |
| 502 | The NEx000 doesn't share the on-board packet memory -- you have to put |
| 503 | the packet out through the "remote DMA" dataport using outb. */ |
| 504 | |
| 505 | static void ne2k_pci_block_input(struct net_device *dev, int count, |
| 506 | struct sk_buff *skb, int ring_offset) |
| 507 | { |
| 508 | long nic_base = dev->base_addr; |
| 509 | char *buf = skb->data; |
| 510 | |
| 511 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
| 512 | if (ei_status.dmaing) { |
| 513 | printk("%s: DMAing conflict in ne2k_pci_block_input " |
| 514 | "[DMAstat:%d][irqlock:%d].\n", |
| 515 | dev->name, ei_status.dmaing, ei_status.irqlock); |
| 516 | return; |
| 517 | } |
| 518 | ei_status.dmaing |= 0x01; |
| 519 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) |
| 520 | count = (count + 3) & 0xFFFC; |
| 521 | outb(E8390_NODMA+E8390_PAGE0+E8390_START, nic_base+ NE_CMD); |
| 522 | outb(count & 0xff, nic_base + EN0_RCNTLO); |
| 523 | outb(count >> 8, nic_base + EN0_RCNTHI); |
| 524 | outb(ring_offset & 0xff, nic_base + EN0_RSARLO); |
| 525 | outb(ring_offset >> 8, nic_base + EN0_RSARHI); |
| 526 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| 527 | |
| 528 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { |
| 529 | insw(NE_BASE + NE_DATAPORT,buf,count>>1); |
| 530 | if (count & 0x01) { |
| 531 | buf[count-1] = inb(NE_BASE + NE_DATAPORT); |
| 532 | } |
| 533 | } else { |
| 534 | insl(NE_BASE + NE_DATAPORT, buf, count>>2); |
| 535 | if (count & 3) { |
| 536 | buf += count & ~3; |
| 537 | if (count & 2) { |
| 538 | u16 *b = (u16 *)buf; |
| 539 | |
| 540 | *b++ = le16_to_cpu(inw(NE_BASE + NE_DATAPORT)); |
| 541 | buf = (char *)b; |
| 542 | } |
| 543 | if (count & 1) |
| 544 | *buf = inb(NE_BASE + NE_DATAPORT); |
| 545 | } |
| 546 | } |
| 547 | |
| 548 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
| 549 | ei_status.dmaing &= ~0x01; |
| 550 | } |
| 551 | |
| 552 | static void ne2k_pci_block_output(struct net_device *dev, int count, |
| 553 | const unsigned char *buf, const int start_page) |
| 554 | { |
| 555 | long nic_base = NE_BASE; |
| 556 | unsigned long dma_start; |
| 557 | |
| 558 | /* On little-endian it's always safe to round the count up for |
| 559 | word writes. */ |
| 560 | if (ei_status.ne2k_flags & ONLY_32BIT_IO) |
| 561 | count = (count + 3) & 0xFFFC; |
| 562 | else |
| 563 | if (count & 0x01) |
| 564 | count++; |
| 565 | |
| 566 | /* This *shouldn't* happen. If it does, it's the last thing you'll see */ |
| 567 | if (ei_status.dmaing) { |
| 568 | printk("%s: DMAing conflict in ne2k_pci_block_output." |
| 569 | "[DMAstat:%d][irqlock:%d]\n", |
| 570 | dev->name, ei_status.dmaing, ei_status.irqlock); |
| 571 | return; |
| 572 | } |
| 573 | ei_status.dmaing |= 0x01; |
| 574 | /* We should already be in page 0, but to be safe... */ |
| 575 | outb(E8390_PAGE0+E8390_START+E8390_NODMA, nic_base + NE_CMD); |
| 576 | |
| 577 | #ifdef NE8390_RW_BUGFIX |
| 578 | /* Handle the read-before-write bug the same way as the |
| 579 | Crynwr packet driver -- the NatSemi method doesn't work. |
| 580 | Actually this doesn't always work either, but if you have |
| 581 | problems with your NEx000 this is better than nothing! */ |
| 582 | outb(0x42, nic_base + EN0_RCNTLO); |
| 583 | outb(0x00, nic_base + EN0_RCNTHI); |
| 584 | outb(0x42, nic_base + EN0_RSARLO); |
| 585 | outb(0x00, nic_base + EN0_RSARHI); |
| 586 | outb(E8390_RREAD+E8390_START, nic_base + NE_CMD); |
| 587 | #endif |
| 588 | outb(ENISR_RDC, nic_base + EN0_ISR); |
| 589 | |
| 590 | /* Now the normal output. */ |
| 591 | outb(count & 0xff, nic_base + EN0_RCNTLO); |
| 592 | outb(count >> 8, nic_base + EN0_RCNTHI); |
| 593 | outb(0x00, nic_base + EN0_RSARLO); |
| 594 | outb(start_page, nic_base + EN0_RSARHI); |
| 595 | outb(E8390_RWRITE+E8390_START, nic_base + NE_CMD); |
| 596 | if (ei_status.ne2k_flags & ONLY_16BIT_IO) { |
| 597 | outsw(NE_BASE + NE_DATAPORT, buf, count>>1); |
| 598 | } else { |
| 599 | outsl(NE_BASE + NE_DATAPORT, buf, count>>2); |
| 600 | if (count & 3) { |
| 601 | buf += count & ~3; |
| 602 | if (count & 2) { |
| 603 | u16 *b = (u16 *)buf; |
| 604 | |
| 605 | outw(cpu_to_le16(*b++), NE_BASE + NE_DATAPORT); |
| 606 | buf = (char *)b; |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | dma_start = jiffies; |
| 612 | |
| 613 | while ((inb(nic_base + EN0_ISR) & ENISR_RDC) == 0) |
| 614 | if (jiffies - dma_start > 2) { /* Avoid clock roll-over. */ |
| 615 | printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name); |
| 616 | ne2k_pci_reset_8390(dev); |
| 617 | NS8390_init(dev,1); |
| 618 | break; |
| 619 | } |
| 620 | |
| 621 | outb(ENISR_RDC, nic_base + EN0_ISR); /* Ack intr. */ |
| 622 | ei_status.dmaing &= ~0x01; |
| 623 | return; |
| 624 | } |
| 625 | |
| 626 | static void ne2k_pci_get_drvinfo(struct net_device *dev, |
| 627 | struct ethtool_drvinfo *info) |
| 628 | { |
| 629 | struct ei_device *ei = dev->priv; |
| 630 | struct pci_dev *pci_dev = (struct pci_dev *) ei->priv; |
| 631 | |
| 632 | strcpy(info->driver, DRV_NAME); |
| 633 | strcpy(info->version, DRV_VERSION); |
| 634 | strcpy(info->bus_info, pci_name(pci_dev)); |
| 635 | } |
| 636 | |
Jeff Garzik | 7282d49 | 2006-09-13 14:30:00 -0400 | [diff] [blame] | 637 | static const struct ethtool_ops ne2k_pci_ethtool_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 638 | .get_drvinfo = ne2k_pci_get_drvinfo, |
| 639 | .get_tx_csum = ethtool_op_get_tx_csum, |
| 640 | .get_sg = ethtool_op_get_sg, |
John W. Linville | 78b3458 | 2005-09-12 10:48:57 -0400 | [diff] [blame] | 641 | .get_perm_addr = ethtool_op_get_perm_addr, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 642 | }; |
| 643 | |
| 644 | static void __devexit ne2k_pci_remove_one (struct pci_dev *pdev) |
| 645 | { |
| 646 | struct net_device *dev = pci_get_drvdata(pdev); |
| 647 | |
Eric Sesterhenn | 5d9428d | 2006-04-02 13:52:48 +0200 | [diff] [blame] | 648 | BUG_ON(!dev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 649 | unregister_netdev(dev); |
| 650 | release_region(dev->base_addr, NE_IO_EXTENT); |
| 651 | free_netdev(dev); |
| 652 | pci_disable_device(pdev); |
| 653 | pci_set_drvdata(pdev, NULL); |
| 654 | } |
| 655 | |
| 656 | #ifdef CONFIG_PM |
| 657 | static int ne2k_pci_suspend (struct pci_dev *pdev, pm_message_t state) |
| 658 | { |
| 659 | struct net_device *dev = pci_get_drvdata (pdev); |
| 660 | |
| 661 | netif_device_detach(dev); |
| 662 | pci_save_state(pdev); |
David Shaohua Li | d58da59 | 2005-03-18 16:43:54 -0500 | [diff] [blame] | 663 | pci_disable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 664 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| 665 | |
| 666 | return 0; |
| 667 | } |
| 668 | |
| 669 | static int ne2k_pci_resume (struct pci_dev *pdev) |
| 670 | { |
| 671 | struct net_device *dev = pci_get_drvdata (pdev); |
| 672 | |
| 673 | pci_set_power_state(pdev, 0); |
| 674 | pci_restore_state(pdev); |
David Shaohua Li | d58da59 | 2005-03-18 16:43:54 -0500 | [diff] [blame] | 675 | pci_enable_device(pdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 676 | NS8390_init(dev, 1); |
| 677 | netif_device_attach(dev); |
| 678 | |
| 679 | return 0; |
| 680 | } |
| 681 | |
| 682 | #endif /* CONFIG_PM */ |
| 683 | |
| 684 | |
| 685 | static struct pci_driver ne2k_driver = { |
| 686 | .name = DRV_NAME, |
| 687 | .probe = ne2k_pci_init_one, |
| 688 | .remove = __devexit_p(ne2k_pci_remove_one), |
| 689 | .id_table = ne2k_pci_tbl, |
| 690 | #ifdef CONFIG_PM |
| 691 | .suspend = ne2k_pci_suspend, |
| 692 | .resume = ne2k_pci_resume, |
| 693 | #endif /* CONFIG_PM */ |
| 694 | |
| 695 | }; |
| 696 | |
| 697 | |
| 698 | static int __init ne2k_pci_init(void) |
| 699 | { |
| 700 | /* when a module, this is printed whether or not devices are found in probe */ |
| 701 | #ifdef MODULE |
| 702 | printk(version); |
| 703 | #endif |
Jeff Garzik | 2991762 | 2006-08-19 17:48:59 -0400 | [diff] [blame] | 704 | return pci_register_driver(&ne2k_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 705 | } |
| 706 | |
| 707 | |
| 708 | static void __exit ne2k_pci_cleanup(void) |
| 709 | { |
| 710 | pci_unregister_driver (&ne2k_driver); |
| 711 | } |
| 712 | |
| 713 | module_init(ne2k_pci_init); |
| 714 | module_exit(ne2k_pci_cleanup); |