1 /* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
3 Written 1994, 1995,1996 by Bao C. Ha.
5 Copyright (C) 1994, 1995,1996 by Bao C. Ha.
7 This software may be used and distributed
8 according to the terms of the GNU General Public License,
9 incorporated herein by reference.
11 The author may be reached at bao.ha@srs.gov
12 or 418 Hastings Place, Martinez, GA 30907.
14 Things remaining to do:
15 Better record keeping of errors.
16 Eliminate transmit interrupt to reduce overhead.
17 Implement "concurrent processing". I won't be doing it!
21 If you have a problem of not detecting the 82595 during a
22 reboot (warm reset), disable the FLASH memory should fix it.
23 This is a compatibility hardware problem.
26 0.13b basic ethtool support (aris, 09/13/2004)
27 0.13a in memory shortage, drop packets also in board
28 (Michael Westermann <mw@microdata-pos.de>, 07/30/2002)
29 0.13 irq sharing, rewrote probe function, fixed a nasty bug in
30 hardware_send_packet and a major cleanup (aris, 11/08/2001)
31 0.12d fixing a problem with single card detected as eight eth devices
32 fixing a problem with sudden drop in card performance
33 (chris (asdn@go2.pl), 10/29/2001)
34 0.12c fixing some problems with old cards (aris, 01/08/2001)
35 0.12b misc fixes (aris, 06/26/2000)
36 0.12a port of version 0.12a of 2.2.x kernels to 2.3.x
37 (aris (aris@conectiva.com.br), 05/19/2000)
38 0.11e some tweaks about multiple cards support (PdP, jul/aug 1999)
39 0.11d added __initdata, __init stuff; call spin_lock_init
40 in eepro_probe1. Replaced "eepro" by dev->name. Augmented
41 the code protected by spin_lock in interrupt routine
43 0.11c minor cleanup (PdP, RMC, 09/12/1998)
44 0.11b Pascal Dupuis (dupuis@lei.ucl.ac.be): works as a module
45 under 2.1.xx. Debug messages are flagged as KERN_DEBUG to
46 avoid console flooding. Added locking at critical parts. Now
47 the dawn thing is SMP safe.
48 0.11a Attempt to get 2.1.xx support up (RMC)
49 0.11 Brian Candler added support for multiple cards. Tested as
50 a module, no idea if it works when compiled into kernel.
52 0.10e Rick Bressler notified me that ifconfig up;ifconfig down fails
53 because the irq is lost somewhere. Fixed that by moving
54 request_irq and free_irq to eepro_open and eepro_close respectively.
55 0.10d Ugh! Now Wakeup works. Was seriously broken in my first attempt.
56 I'll need to find a way to specify an ioport other than
57 the default one in the PnP case. PnP definitively sucks.
58 And, yes, this is not the only reason.
59 0.10c PnP Wakeup Test for 595FX. uncomment #define PnPWakeup;
61 0.10b Should work now with (some) Pro/10+. At least for
62 me (and my two cards) it does. _No_ guarantee for
63 function with non-Pro/10+ cards! (don't have any)
66 0.10 Added support for the Etherexpress Pro/10+. The
67 IRQ map was changed significantly from the old
68 pro/10. The new interrupt map was provided by
69 Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu).
72 0.09 Fixed a race condition in the transmit algorithm,
73 which causes crashes under heavy load with fast
74 pentium computers. The performance should also
75 improve a bit. The size of RX buffer, and hence
76 TX buffer, can also be changed via lilo or insmod.
79 0.08 Implement 32-bit I/O for the 82595TX and 82595FX
80 based lan cards. Disable full-duplex mode if TPE
81 is not used. (BCH, 4/8/96)
83 0.07a Fix a stat report which counts every packet as a
84 heart-beat failure. (BCH, 6/3/95)
86 0.07 Modified to support all other 82595-based lan cards.
87 The IRQ vector of the EtherExpress Pro will be set
88 according to the value saved in the EEPROM. For other
89 cards, I will do autoirq_request() to grab the next
90 available interrupt vector. (BCH, 3/17/95)
92 0.06a,b Interim released. Minor changes in the comments and
93 print out format. (BCH, 3/9/95 and 3/14/95)
95 0.06 First stable release that I am comfortable with. (BCH,
98 0.05 Complete testing of multicast. (BCH, 2/23/95)
100 0.04 Adding multicast support. (BCH, 2/14/95)
102 0.03 First widely alpha release for public testing.
107 static const char version[] =
108 "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n";
110 #include <linux/module.h>
115 This driver wouldn't have been written without the availability
116 of the Crynwr's Lan595 driver source code. It helps me to
117 familiarize with the 82595 chipset while waiting for the Intel
118 documentation. I also learned how to detect the 82595 using
119 the packet driver's technique.
121 This driver is written by cutting and pasting the skeleton.c driver
122 provided by Donald Becker. I also borrowed the EEPROM routine from
123 Donald Becker's 82586 driver.
125 Datasheet for the Intel 82595 (including the TX and FX version). It
126 provides just enough info that the casual reader might think that it
127 documents the i82595.
129 The User Manual for the 82595. It provides a lot of the missing
134 #include <linux/kernel.h>
135 #include <linux/types.h>
136 #include <linux/fcntl.h>
137 #include <linux/interrupt.h>
138 #include <linux/ioport.h>
139 #include <linux/in.h>
140 #include <linux/slab.h>
141 #include <linux/string.h>
142 #include <linux/errno.h>
143 #include <linux/netdevice.h>
144 #include <linux/etherdevice.h>
145 #include <linux/skbuff.h>
146 #include <linux/spinlock.h>
147 #include <linux/init.h>
148 #include <linux/delay.h>
149 #include <linux/bitops.h>
150 #include <linux/ethtool.h>
152 #include <asm/system.h>
156 #define DRV_NAME "eepro"
157 #define DRV_VERSION "0.13c"
159 #define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb) )
160 /* I had reports of looong delays with SLOW_DOWN defined as udelay(2) */
161 #define SLOW_DOWN inb(0x80)
163 #define compat_init_data __initdata
164 enum iftype { AUI=0, BNC=1, TPE=2 };
166 /* First, a few definitions that the brave might change. */
167 /* A zero-terminated list of I/O addresses to be probed. */
168 static unsigned int eepro_portlist[] compat_init_data =
169 { 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0};
170 /* note: 0x300 is default, the 595FX supports ALL IO Ports
171 from 0x000 to 0x3F0, some of which are reserved in PCs */
173 /* To try the (not-really PnP Wakeup: */
178 /* use 0 for production, 1 for verification, >2 for debug */
182 static unsigned int net_debug = NET_DEBUG;
184 /* The number of low I/O ports used by the ethercard. */
185 #define EEPRO_IO_EXTENT 16
187 /* Different 82595 chips */
191 #define LAN595FX_10ISA 3
193 /* Information that need to be kept for each board. */
195 struct net_device_stats stats;
197 unsigned tx_start; /* start of the transmit chain */
198 int tx_last; /* pointer to last packet in the transmit chain */
199 unsigned tx_end; /* end of the transmit chain (plus 1) */
200 int eepro; /* 1 for the EtherExpress Pro/10,
201 2 for the EtherExpress Pro/10+,
202 3 for the EtherExpress 10 (blue cards),
203 0 for other 82595-based lan cards. */
204 int version; /* a flag to indicate if this is a TX or FX
205 version of the 82595 chip. */
208 spinlock_t lock; /* Serializing lock */
210 unsigned rcv_ram; /* pre-calculated space for rx */
211 unsigned xmt_ram; /* pre-calculated space for tx */
212 unsigned char xmt_bar;
213 unsigned char xmt_lower_limit_reg;
214 unsigned char xmt_upper_limit_reg;
215 short xmt_lower_limit;
216 short xmt_upper_limit;
217 short rcv_lower_limit;
218 short rcv_upper_limit;
219 unsigned char eeprom_reg;
220 unsigned short word[8];
223 /* The station (ethernet) address prefix, used for IDing the board. */
224 #define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
225 #define SA_ADDR1 0xaa
226 #define SA_ADDR2 0x00
228 #define GetBit(x,y) ((x & (1<<y))>>y)
231 #define ee_PnP 0 /* Plug 'n Play enable bit */
232 #define ee_Word1 1 /* Word 1? */
233 #define ee_BusWidth 2 /* 8/16 bit */
234 #define ee_FlashAddr 3 /* Flash Address */
235 #define ee_FlashMask 0x7 /* Mask */
236 #define ee_AutoIO 6 /* */
237 #define ee_reserved0 7 /* =0! */
238 #define ee_Flash 8 /* Flash there? */
239 #define ee_AutoNeg 9 /* Auto Negotiation enabled? */
240 #define ee_IO0 10 /* IO Address LSB */
241 #define ee_IO0Mask 0x /*...*/
242 #define ee_IO1 15 /* IO MSB */
245 #define ee_IntSel 0 /* Interrupt */
246 #define ee_IntMask 0x7
247 #define ee_LI 3 /* Link Integrity 0= enabled */
248 #define ee_PC 4 /* Polarity Correction 0= enabled */
249 #define ee_TPE_AUI 5 /* PortSelection 1=TPE */
250 #define ee_Jabber 6 /* Jabber prevention 0= enabled */
251 #define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */
252 #define ee_SMOUT 8 /* SMout Pin Control 0= Input */
253 #define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */
254 #define ee_reserved1 10 /* .. 12 =0! */
255 #define ee_AltReady 13 /* Alternate Ready, 0=normal */
256 #define ee_reserved2 14 /* =0! */
260 #define ee_IA5 0 /*bit start for individual Addr Byte 5 */
261 #define ee_IA4 8 /*bit start for individual Addr Byte 5 */
262 #define ee_IA3 0 /*bit start for individual Addr Byte 5 */
263 #define ee_IA2 8 /*bit start for individual Addr Byte 5 */
264 #define ee_IA1 0 /*bit start for individual Addr Byte 5 */
265 #define ee_IA0 8 /*bit start for individual Addr Byte 5 */
268 #define ee_BNC_TPE 0 /* 0=TPE */
269 #define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */
270 #define ee_BootTypeMask 0x3
271 #define ee_NumConn 3 /* Number of Connections 0= One or Two */
272 #define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */
276 #define ee_PowerMgt 10 /* 0= disabled */
277 #define ee_CP 13 /* Concurrent Processing */
278 #define ee_CPMask 0x7
281 #define ee_Stepping 0 /* Stepping info */
282 #define ee_StepMask 0x0F
283 #define ee_BoardID 4 /* Manucaturer Board ID, reserved */
284 #define ee_BoardMask 0x0FFF
287 #define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */
288 #define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */
291 #define ee_SIZE 0x40 /* total EEprom Size */
292 #define ee_Checksum 0xBABA /* initial and final value for adding checksum */
295 /* Card identification via EEprom: */
296 #define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */
297 #define ee_addr_id 0x11 /* Word offset for Card ID */
298 #define ee_addr_SN 0x12 /* Serial Number */
299 #define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */
302 #define ee_vendor_intel0 0x25 /* Vendor ID Intel */
303 #define ee_vendor_intel1 0xD4
304 #define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */
305 #define ee_id_eepro10p1 0x31
307 #define TX_TIMEOUT 40
309 /* Index to functions, as function prototypes. */
311 static int eepro_probe1(struct net_device *dev, int autoprobe);
312 static int eepro_open(struct net_device *dev);
313 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev);
314 static irqreturn_t eepro_interrupt(int irq, void *dev_id);
315 static void eepro_rx(struct net_device *dev);
316 static void eepro_transmit_interrupt(struct net_device *dev);
317 static int eepro_close(struct net_device *dev);
318 static struct net_device_stats *eepro_get_stats(struct net_device *dev);
319 static void set_multicast_list(struct net_device *dev);
320 static void eepro_tx_timeout (struct net_device *dev);
322 static int read_eeprom(int ioaddr, int location, struct net_device *dev);
323 static int hardware_send_packet(struct net_device *dev, void *buf, short length);
324 static int eepro_grab_irq(struct net_device *dev);
327 Details of the i82595.
329 You will need either the datasheet or the user manual to understand what
330 is going on here. The 82595 is very different from the 82586, 82593.
332 The receive algorithm in eepro_rx() is just an implementation of the
333 RCV ring structure that the Intel 82595 imposes at the hardware level.
334 The receive buffer is set at 24K, and the transmit buffer is 8K. I
335 am assuming that the total buffer memory is 32K, which is true for the
336 Intel EtherExpress Pro/10. If it is less than that on a generic card,
337 the driver will be broken.
339 The transmit algorithm in the hardware_send_packet() is similar to the
340 one in the eepro_rx(). The transmit buffer is a ring linked list.
341 I just queue the next available packet to the end of the list. In my
342 system, the 82595 is so fast that the list seems to always contain a
343 single packet. In other systems with faster computers and more congested
344 network traffics, the ring linked list should improve performance by
345 allowing up to 8K worth of packets to be queued.
347 The sizes of the receive and transmit buffers can now be changed via lilo
348 or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
349 where rx-buffer is in KB unit. Modules uses the parameter mem which is
350 also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
351 The receive buffer has to be more than 3K or less than 29K. Otherwise,
352 it is reset to the default of 24K, and, hence, 8K for the trasnmit
353 buffer (transmit-buffer = 32K - receive-buffer).
356 #define RAM_SIZE 0x8000
359 #define RCV_DEFAULT_RAM 0x6000
362 #define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM)
364 #define XMT_START_PRO RCV_DEFAULT_RAM
365 #define XMT_START_10 0x0000
366 #define RCV_START_PRO 0x0000
367 #define RCV_START_10 XMT_DEFAULT_RAM
369 #define RCV_DONE 0x0008
371 #define RX_ERROR 0x0d81
373 #define TX_DONE_BIT 0x0080
375 #define CHAIN_BIT 0x8000
376 #define XMT_STATUS 0x02
377 #define XMT_CHAIN 0x04
378 #define XMT_COUNT 0x06
380 #define BANK0_SELECT 0x00
381 #define BANK1_SELECT 0x40
382 #define BANK2_SELECT 0x80
384 /* Bank 0 registers */
385 #define COMMAND_REG 0x00 /* Register 0 */
386 #define MC_SETUP 0x03
388 #define DIAGNOSE_CMD 0x07
389 #define RCV_ENABLE_CMD 0x08
390 #define RCV_DISABLE_CMD 0x0a
391 #define STOP_RCV_CMD 0x0b
392 #define RESET_CMD 0x0e
393 #define POWER_DOWN_CMD 0x18
394 #define RESUME_XMT_CMD 0x1c
395 #define SEL_RESET_CMD 0x1e
396 #define STATUS_REG 0x01 /* Register 1 */
399 #define EXEC_STATUS 0x30
400 #define ID_REG 0x02 /* Register 2 */
401 #define R_ROBIN_BITS 0xc0 /* round robin counter */
402 #define ID_REG_MASK 0x2c
403 #define ID_REG_SIG 0x24
404 #define AUTO_ENABLE 0x10
405 #define INT_MASK_REG 0x03 /* Register 3 */
406 #define RX_STOP_MASK 0x01
409 #define EXEC_MASK 0x08
410 #define ALL_MASK 0x0f
411 #define IO_32_BIT 0x10
412 #define RCV_BAR 0x04 /* The following are word (16-bit) registers */
413 #define RCV_STOP 0x06
415 #define XMT_BAR_PRO 0x0a
416 #define XMT_BAR_10 0x0b
418 #define HOST_ADDRESS_REG 0x0c
420 #define IO_PORT_32_BIT 0x0c
422 /* Bank 1 registers */
424 #define WORD_WIDTH 0x02
425 #define INT_ENABLE 0x80
426 #define INT_NO_REG 0x02
427 #define RCV_LOWER_LIMIT_REG 0x08
428 #define RCV_UPPER_LIMIT_REG 0x09
430 #define XMT_LOWER_LIMIT_REG_PRO 0x0a
431 #define XMT_UPPER_LIMIT_REG_PRO 0x0b
432 #define XMT_LOWER_LIMIT_REG_10 0x0b
433 #define XMT_UPPER_LIMIT_REG_10 0x0a
435 /* Bank 2 registers */
436 #define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
437 #define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
438 #define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
440 #define PRMSC_Mode 0x01
441 #define Multi_IA 0x20
447 #define A_N_ENABLE 0x02
449 #define I_ADD_REG0 0x04
450 #define I_ADD_REG1 0x05
451 #define I_ADD_REG2 0x06
452 #define I_ADD_REG3 0x07
453 #define I_ADD_REG4 0x08
454 #define I_ADD_REG5 0x09
456 #define EEPROM_REG_PRO 0x0a
457 #define EEPROM_REG_10 0x0b
464 /* do a full reset */
465 #define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr)
467 /* do a nice reset */
468 #define eepro_sel_reset(ioaddr) { \
469 outb(SEL_RESET_CMD, ioaddr); \
474 /* disable all interrupts */
475 #define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG)
477 /* clear all interrupts */
478 #define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
481 #define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \
482 ioaddr + INT_MASK_REG)
484 /* enable exec event interrupt */
485 #define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG)
488 #define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
491 #define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
494 #define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr)
495 #define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr)
496 #define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr)
498 /* enable interrupt line */
499 #define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\
502 /* disable interrupt line */
503 #define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \
506 /* set diagnose flag */
507 #define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr)
510 #define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG)
513 #define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG)
515 /* a complete sel reset */
516 #define eepro_complete_selreset(ioaddr) { \
517 lp->stats.tx_errors++;\
518 eepro_sel_reset(ioaddr);\
520 lp->xmt_lower_limit;\
521 lp->tx_start = lp->tx_end;\
523 dev->trans_start = jiffies;\
524 netif_wake_queue(dev);\
525 eepro_en_rx(ioaddr);\
528 /* Check for a network adaptor of this type, and return '0' if one exists.
529 If dev->base_addr == 0, probe all likely locations.
530 If dev->base_addr == 1, always return failure.
531 If dev->base_addr == 2, allocate space for the device and return success
532 (detachable devices only).
534 static int __init do_eepro_probe(struct net_device *dev)
537 int base_addr = dev->base_addr;
540 SET_MODULE_OWNER(dev);
543 /* XXXX for multiple cards should this only be run once? */
546 #define WakeupPort 0x279
547 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
548 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
549 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
550 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
553 unsigned short int WS[32]=WakeupSeq;
555 if (request_region(WakeupPort, 2, "eepro wakeup")) {
557 printk(KERN_DEBUG "Waking UP\n");
559 outb_p(0,WakeupPort);
560 outb_p(0,WakeupPort);
561 for (i=0; i<32; i++) {
562 outb_p(WS[i],WakeupPort);
563 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
566 release_region(WakeupPort, 2);
568 printk(KERN_WARNING "PnP wakeup region busy!\n");
572 if (base_addr > 0x1ff) /* Check a single specified location. */
573 return eepro_probe1(dev, 0);
575 else if (base_addr != 0) /* Don't probe at all. */
578 for (i = 0; eepro_portlist[i]; i++) {
579 dev->base_addr = eepro_portlist[i];
581 if (eepro_probe1(dev, 1) == 0)
589 struct net_device * __init eepro_probe(int unit)
591 struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local));
595 return ERR_PTR(-ENODEV);
597 SET_MODULE_OWNER(dev);
599 sprintf(dev->name, "eth%d", unit);
600 netdev_boot_setup_check(dev);
602 err = do_eepro_probe(dev);
612 static void __init printEEPROMInfo(struct net_device *dev)
614 struct eepro_local *lp = (struct eepro_local *)dev->priv;
615 int ioaddr = dev->base_addr;
620 for (i = 0; i < 8; i++)
622 for ( ; i < ee_SIZE; i++)
623 j += read_eeprom(ioaddr, i, dev);
625 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
628 printk(KERN_DEBUG "Word0:\n");
629 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
630 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
631 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
632 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
636 printk(KERN_DEBUG "Word1:\n");
637 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
638 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
639 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
640 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
641 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
642 printk(KERN_DEBUG " AutoPort: %d\n", GetBit(!Word,ee_Jabber));
643 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
647 printk(KERN_DEBUG "Word5:\n");
648 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
649 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
650 printk(KERN_DEBUG " Has ");
651 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
652 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
653 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
654 printk(KERN_DEBUG "port(s) \n");
657 printk(KERN_DEBUG "Word6:\n");
658 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
659 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
662 printk(KERN_DEBUG "Word7:\n");
663 printk(KERN_DEBUG " INT to IRQ:\n");
665 for (i=0, j=0; i<15; i++)
666 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
668 printk(KERN_DEBUG "\n");
671 /* function to recalculate the limits of buffer based on rcv_ram */
672 static void eepro_recalc (struct net_device *dev)
674 struct eepro_local * lp;
676 lp = netdev_priv(dev);
677 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
679 if (lp->eepro == LAN595FX_10ISA) {
680 lp->xmt_lower_limit = XMT_START_10;
681 lp->xmt_upper_limit = (lp->xmt_ram - 2);
682 lp->rcv_lower_limit = lp->xmt_ram;
683 lp->rcv_upper_limit = (RAM_SIZE - 2);
686 lp->rcv_lower_limit = RCV_START_PRO;
687 lp->rcv_upper_limit = (lp->rcv_ram - 2);
688 lp->xmt_lower_limit = lp->rcv_ram;
689 lp->xmt_upper_limit = (RAM_SIZE - 2);
693 /* prints boot-time info */
694 static void __init eepro_print_info (struct net_device *dev)
696 struct eepro_local * lp = netdev_priv(dev);
698 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
700 i = inb(dev->base_addr + ID_REG);
701 printk(KERN_DEBUG " id: %#x ",i);
702 printk(" io: %#x ", (unsigned)dev->base_addr);
706 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
707 dev->name, (unsigned)dev->base_addr);
710 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
711 dev->name, (unsigned)dev->base_addr);
714 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
715 dev->name, (unsigned)dev->base_addr);
718 printk("%s: Intel 82595-based lan card at %#x,",
719 dev->name, (unsigned)dev->base_addr);
722 for (i=0; i < 6; i++)
723 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
726 printk(KERN_DEBUG ", %dK RCV buffer",
727 (int)(lp->rcv_ram)/1024);
730 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
732 printk(", %s.\n", ifmap[dev->if_port]);
736 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
737 printk(KERN_DEBUG "%s: Concurrent Processing is "
738 "enabled but not used!\n", dev->name);
741 /* Check the station address for the manufacturer's code */
743 printEEPROMInfo(dev);
746 static const struct ethtool_ops eepro_ethtool_ops;
748 /* This is the real probe routine. Linux has a history of friendly device
749 probes on the ISA bus. A good device probe avoids doing writes, and
750 verifies that the correct device exists and functions. */
752 static int __init eepro_probe1(struct net_device *dev, int autoprobe)
754 unsigned short station_addr[3], id, counter;
756 struct eepro_local *lp;
757 int ioaddr = dev->base_addr;
760 /* Grab the region so we can find another board if autoIRQ fails. */
761 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
763 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
768 /* Now, we are going to check for the signature of the
769 ID_REG (register 2 of bank 0) */
771 id = inb(ioaddr + ID_REG);
773 if ((id & ID_REG_MASK) != ID_REG_SIG)
776 /* We seem to have the 82595 signature, let's
777 play with its counter (last 2 bits of
778 register 2 of bank 0) to be sure. */
780 counter = id & R_ROBIN_BITS;
782 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
785 lp = netdev_priv(dev);
786 memset(lp, 0, sizeof(struct eepro_local));
787 lp->xmt_bar = XMT_BAR_PRO;
788 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
789 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
790 lp->eeprom_reg = EEPROM_REG_PRO;
791 spin_lock_init(&lp->lock);
793 /* Now, get the ethernet hardware address from
795 station_addr[0] = read_eeprom(ioaddr, 2, dev);
797 /* FIXME - find another way to know that we've found
800 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
801 lp->eepro = LAN595FX_10ISA;
802 lp->eeprom_reg = EEPROM_REG_10;
803 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
804 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
805 lp->xmt_bar = XMT_BAR_10;
806 station_addr[0] = read_eeprom(ioaddr, 2, dev);
809 /* get all words at once. will be used here and for ethtool */
810 for (i = 0; i < 8; i++) {
811 lp->word[i] = read_eeprom(ioaddr, i, dev);
813 station_addr[1] = lp->word[3];
814 station_addr[2] = lp->word[4];
817 if (lp->word[7] == ee_FX_INT2IRQ)
819 else if (station_addr[2] == SA_ADDR1)
823 /* Fill in the 'dev' fields. */
824 for (i=0; i < 6; i++)
825 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
827 /* RX buffer must be more than 3K and less than 29K */
828 if (dev->mem_end < 3072 || dev->mem_end > 29696)
829 lp->rcv_ram = RCV_DEFAULT_RAM;
831 /* calculate {xmt,rcv}_{lower,upper}_limit */
834 if (GetBit(lp->word[5], ee_BNC_TPE))
839 if (dev->irq < 2 && lp->eepro != 0) {
840 /* Mask off INT number */
841 int count = lp->word[1] & 7;
842 unsigned irqMask = lp->word[7];
845 irqMask &= irqMask - 1;
847 count = ffs(irqMask);
850 dev->irq = count - 1;
853 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
855 } else if (dev->irq == 2) {
860 dev->open = eepro_open;
861 dev->stop = eepro_close;
862 dev->hard_start_xmit = eepro_send_packet;
863 dev->get_stats = eepro_get_stats;
864 dev->set_multicast_list = &set_multicast_list;
865 dev->tx_timeout = eepro_tx_timeout;
866 dev->watchdog_timeo = TX_TIMEOUT;
867 dev->ethtool_ops = &eepro_ethtool_ops;
869 /* print boot time info */
870 eepro_print_info(dev);
875 err = register_netdev(dev);
882 release_region(dev->base_addr, EEPRO_IO_EXTENT);
886 /* Open/initialize the board. This is called (in the current kernel)
887 sometime after booting when the 'ifconfig' program is run.
889 This routine should set everything up anew at each open, even
890 registers that "should" only need to be set once at boot, so that
891 there is non-reboot way to recover if something goes wrong.
894 static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
895 static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
896 static int eepro_grab_irq(struct net_device *dev)
898 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
899 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
901 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
903 /* Enable the interrupt line. */
904 eepro_en_intline(ioaddr);
906 /* be CAREFUL, BANK 0 now */
907 eepro_sw2bank0(ioaddr);
909 /* clear all interrupts */
910 eepro_clear_int(ioaddr);
912 /* Let EXEC event to interrupt */
913 eepro_en_intexec(ioaddr);
916 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
918 temp_reg = inb(ioaddr + INT_NO_REG);
919 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
921 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
923 if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) {
924 unsigned long irq_mask;
925 /* Twinkle the interrupt, and check if it's seen */
926 irq_mask = probe_irq_on();
928 eepro_diag(ioaddr); /* RESET the 82595 */
931 if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */
934 /* clear all interrupts */
935 eepro_clear_int(ioaddr);
939 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
941 /* Disable the physical interrupt line. */
942 eepro_dis_intline(ioaddr);
944 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
946 /* Mask all the interrupts. */
947 eepro_dis_int(ioaddr);
949 /* clear all interrupts */
950 eepro_clear_int(ioaddr);
955 static int eepro_open(struct net_device *dev)
957 unsigned short temp_reg, old8, old9;
959 int i, ioaddr = dev->base_addr;
960 struct eepro_local *lp = netdev_priv(dev);
963 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
965 irqMask = lp->word[7];
967 if (lp->eepro == LAN595FX_10ISA) {
968 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
970 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
972 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
973 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
976 else if ((dev->dev_addr[0] == SA_ADDR0 &&
977 dev->dev_addr[1] == SA_ADDR1 &&
978 dev->dev_addr[2] == SA_ADDR2))
981 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
982 } /* Yes, an Intel EtherExpress Pro/10 */
984 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
986 /* Get the interrupt vector for the 82595 */
987 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
988 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
992 if (request_irq(dev->irq , &eepro_interrupt, 0, dev->name, dev)) {
993 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
997 /* Initialize the 82595. */
999 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1000 temp_reg = inb(ioaddr + lp->eeprom_reg);
1002 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
1005 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1007 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1008 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1009 for (i=0; i < 6; i++)
1010 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1012 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1013 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1014 | RCV_Discard_BadFrame, ioaddr + REG1);
1016 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1017 outb(temp_reg | 0x14, ioaddr + REG2);
1019 temp_reg = inb(ioaddr + REG3);
1020 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1022 /* Set the receiving mode */
1023 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1025 /* Set the interrupt vector */
1026 temp_reg = inb(ioaddr + INT_NO_REG);
1027 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1028 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1029 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1032 temp_reg = inb(ioaddr + INT_NO_REG);
1033 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1034 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1035 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1038 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1041 /* Initialize the RCV and XMT upper and lower limits */
1042 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1043 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
1044 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1045 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1047 /* Enable the interrupt line. */
1048 eepro_en_intline(ioaddr);
1050 /* Switch back to Bank 0 */
1051 eepro_sw2bank0(ioaddr);
1053 /* Let RX and TX events to interrupt */
1054 eepro_en_int(ioaddr);
1056 /* clear all interrupts */
1057 eepro_clear_int(ioaddr);
1059 /* Initialize RCV */
1060 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
1061 lp->rx_start = lp->rcv_lower_limit;
1062 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
1064 /* Initialize XMT */
1065 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
1066 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1069 /* Check for the i82595TX and i82595FX */
1070 old8 = inb(ioaddr + 8);
1071 outb(~old8, ioaddr + 8);
1073 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1075 printk(KERN_DEBUG "i82595 detected!\n");
1076 lp->version = LAN595;
1079 lp->version = LAN595TX;
1080 outb(old8, ioaddr + 8);
1081 old9 = inb(ioaddr + 9);
1083 if (irqMask==ee_FX_INT2IRQ) {
1084 if (net_debug > 3) {
1085 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1086 printk(KERN_DEBUG "i82595FX detected!\n");
1088 lp->version = LAN595FX;
1089 outb(old9, ioaddr + 9);
1090 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1091 problem of using Pentiums and
1093 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1094 temp_reg = inb(ioaddr + REG13);
1095 /* disable the full duplex mode since it is not
1096 applicable with the 10Base2 cable. */
1097 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1098 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1101 else if (net_debug > 3) {
1102 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1103 printk(KERN_DEBUG "i82595TX detected!\n");
1107 eepro_sel_reset(ioaddr);
1109 netif_start_queue(dev);
1112 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1115 eepro_en_rx(ioaddr);
1120 static void eepro_tx_timeout (struct net_device *dev)
1122 struct eepro_local *lp = netdev_priv(dev);
1123 int ioaddr = dev->base_addr;
1125 /* if (net_debug > 1) */
1126 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1127 "network cable problem");
1128 /* This is not a duplicate. One message for the console,
1129 one for the log file */
1130 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1131 "network cable problem");
1132 eepro_complete_selreset(ioaddr);
1136 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1138 struct eepro_local *lp = netdev_priv(dev);
1139 unsigned long flags;
1140 int ioaddr = dev->base_addr;
1141 short length = skb->len;
1144 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1146 if (length < ETH_ZLEN) {
1147 if (skb_padto(skb, ETH_ZLEN))
1151 netif_stop_queue (dev);
1153 eepro_dis_int(ioaddr);
1154 spin_lock_irqsave(&lp->lock, flags);
1157 unsigned char *buf = skb->data;
1159 if (hardware_send_packet(dev, buf, length))
1160 /* we won't wake queue here because we're out of space */
1161 lp->stats.tx_dropped++;
1163 lp->stats.tx_bytes+=skb->len;
1164 dev->trans_start = jiffies;
1165 netif_wake_queue(dev);
1170 dev_kfree_skb (skb);
1172 /* You might need to clean up and record Tx statistics here. */
1173 /* lp->stats.tx_aborted_errors++; */
1176 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1178 eepro_en_int(ioaddr);
1179 spin_unlock_irqrestore(&lp->lock, flags);
1185 /* The typical workload of the driver:
1186 Handle the network interface interrupts. */
1189 eepro_interrupt(int irq, void *dev_id)
1191 struct net_device *dev = dev_id;
1192 struct eepro_local *lp;
1193 int ioaddr, status, boguscount = 20;
1196 lp = netdev_priv(dev);
1198 spin_lock(&lp->lock);
1201 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1203 ioaddr = dev->base_addr;
1205 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1208 if (status & RX_INT) {
1210 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1212 eepro_dis_int(ioaddr);
1214 /* Get the received packets */
1215 eepro_ack_rx(ioaddr);
1218 eepro_en_int(ioaddr);
1220 if (status & TX_INT) {
1222 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1225 eepro_dis_int(ioaddr);
1227 /* Process the status of transmitted packets */
1228 eepro_ack_tx(ioaddr);
1229 eepro_transmit_interrupt(dev);
1231 eepro_en_int(ioaddr);
1236 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1238 spin_unlock(&lp->lock);
1239 return IRQ_RETVAL(handled);
1242 static int eepro_close(struct net_device *dev)
1244 struct eepro_local *lp = netdev_priv(dev);
1245 int ioaddr = dev->base_addr;
1248 netif_stop_queue(dev);
1250 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1252 /* Disable the physical interrupt line. */
1253 temp_reg = inb(ioaddr + REG1);
1254 outb(temp_reg & 0x7f, ioaddr + REG1);
1256 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1258 /* Flush the Tx and disable Rx. */
1259 outb(STOP_RCV_CMD, ioaddr);
1260 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1263 /* Mask all the interrupts. */
1264 eepro_dis_int(ioaddr);
1266 /* clear all interrupts */
1267 eepro_clear_int(ioaddr);
1269 /* Reset the 82595 */
1270 eepro_reset(ioaddr);
1272 /* release the interrupt */
1273 free_irq(dev->irq, dev);
1275 /* Update the statistics here. What statistics? */
1280 /* Get the current statistics. This may be called with the card open or
1282 static struct net_device_stats *
1283 eepro_get_stats(struct net_device *dev)
1285 struct eepro_local *lp = netdev_priv(dev);
1290 /* Set or clear the multicast filter for this adaptor.
1293 set_multicast_list(struct net_device *dev)
1295 struct eepro_local *lp = netdev_priv(dev);
1296 short ioaddr = dev->base_addr;
1297 unsigned short mode;
1298 struct dev_mc_list *dmi=dev->mc_list;
1300 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1303 * We must make the kernel realise we had to move
1304 * into promisc mode or we start all out war on
1305 * the cable. If it was a promisc request the
1306 * flag is already set. If not we assert it.
1308 dev->flags|=IFF_PROMISC;
1310 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1311 mode = inb(ioaddr + REG2);
1312 outb(mode | PRMSC_Mode, ioaddr + REG2);
1313 mode = inb(ioaddr + REG3);
1314 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1315 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1318 else if (dev->mc_count==0 )
1320 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1321 mode = inb(ioaddr + REG2);
1322 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1323 mode = inb(ioaddr + REG3);
1324 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1325 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1330 unsigned short status, *eaddrs;
1331 int i, boguscount = 0;
1333 /* Disable RX and TX interrupts. Necessary to avoid
1334 corruption of the HOST_ADDRESS_REG by interrupt
1335 service routines. */
1336 eepro_dis_int(ioaddr);
1338 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1339 mode = inb(ioaddr + REG2);
1340 outb(mode | Multi_IA, ioaddr + REG2);
1341 mode = inb(ioaddr + REG3);
1342 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1343 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1344 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1345 outw(MC_SETUP, ioaddr + IO_PORT);
1346 outw(0, ioaddr + IO_PORT);
1347 outw(0, ioaddr + IO_PORT);
1348 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1350 for (i = 0; i < dev->mc_count; i++)
1352 eaddrs=(unsigned short *)dmi->dmi_addr;
1354 outw(*eaddrs++, ioaddr + IO_PORT);
1355 outw(*eaddrs++, ioaddr + IO_PORT);
1356 outw(*eaddrs++, ioaddr + IO_PORT);
1359 eaddrs = (unsigned short *) dev->dev_addr;
1360 outw(eaddrs[0], ioaddr + IO_PORT);
1361 outw(eaddrs[1], ioaddr + IO_PORT);
1362 outw(eaddrs[2], ioaddr + IO_PORT);
1363 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1364 outb(MC_SETUP, ioaddr);
1366 /* Update the transmit queue */
1367 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1369 if (lp->tx_start != lp->tx_end)
1371 /* update the next address and the chain bit in the
1373 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1374 outw(i, ioaddr + IO_PORT);
1375 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1376 status = inw(ioaddr + IO_PORT);
1377 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1381 lp->tx_start = lp->tx_end = i ;
1384 /* Acknowledge that the MC setup is done */
1385 do { /* We should be doing this in the eepro_interrupt()! */
1388 if (inb(ioaddr + STATUS_REG) & 0x08)
1391 outb(0x08, ioaddr + STATUS_REG);
1393 if (i & 0x20) { /* command ABORTed */
1394 printk(KERN_NOTICE "%s: multicast setup failed.\n",
1397 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1398 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1399 dev->name, dev->mc_count,
1400 dev->mc_count > 1 ? "es":"");
1404 } while (++boguscount < 100);
1406 /* Re-enable RX and TX interrupts */
1407 eepro_en_int(ioaddr);
1409 if (lp->eepro == LAN595FX_10ISA) {
1410 eepro_complete_selreset(ioaddr);
1413 eepro_en_rx(ioaddr);
1416 /* The horrible routine to read a word from the serial EEPROM. */
1417 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1419 /* The delay between EEPROM clock transitions. */
1420 #define eeprom_delay() { udelay(40); }
1421 #define EE_READ_CMD (6 << 6)
1424 read_eeprom(int ioaddr, int location, struct net_device *dev)
1427 unsigned short retval = 0;
1428 struct eepro_local *lp = netdev_priv(dev);
1429 short ee_addr = ioaddr + lp->eeprom_reg;
1430 int read_cmd = location | EE_READ_CMD;
1431 short ctrl_val = EECS ;
1433 /* XXXX - black magic */
1434 eepro_sw2bank1(ioaddr);
1435 outb(0x00, ioaddr + STATUS_REG);
1436 /* XXXX - black magic */
1438 eepro_sw2bank2(ioaddr);
1439 outb(ctrl_val, ee_addr);
1441 /* Shift the read command bits out. */
1442 for (i = 8; i >= 0; i--) {
1443 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1445 outb(outval, ee_addr);
1446 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1448 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1451 outb(ctrl_val, ee_addr);
1453 for (i = 16; i > 0; i--) {
1454 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1455 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1456 outb(ctrl_val, ee_addr); eeprom_delay();
1459 /* Terminate the EEPROM access. */
1461 outb(ctrl_val | EESK, ee_addr);
1463 outb(ctrl_val, ee_addr);
1465 eepro_sw2bank0(ioaddr);
1470 hardware_send_packet(struct net_device *dev, void *buf, short length)
1472 struct eepro_local *lp = netdev_priv(dev);
1473 short ioaddr = dev->base_addr;
1474 unsigned status, tx_available, last, end;
1477 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1479 /* determine how much of the transmit buffer space is available */
1480 if (lp->tx_end > lp->tx_start)
1481 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1482 else if (lp->tx_end < lp->tx_start)
1483 tx_available = lp->tx_start - lp->tx_end;
1484 else tx_available = lp->xmt_ram;
1486 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1487 /* No space available ??? */
1492 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1494 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
1495 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
1496 /* Arrrr!!!, must keep the xmt header together,
1497 several days were lost to chase this one down. */
1498 last = lp->xmt_lower_limit;
1499 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1501 else end = lp->xmt_lower_limit + (end -
1502 lp->xmt_upper_limit + 2);
1505 outw(last, ioaddr + HOST_ADDRESS_REG);
1506 outw(XMT_CMD, ioaddr + IO_PORT);
1507 outw(0, ioaddr + IO_PORT);
1508 outw(end, ioaddr + IO_PORT);
1509 outw(length, ioaddr + IO_PORT);
1511 if (lp->version == LAN595)
1512 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1513 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1514 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1515 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1516 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1517 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1520 /* A dummy read to flush the DRAM write pipeline */
1521 status = inw(ioaddr + IO_PORT);
1523 if (lp->tx_start == lp->tx_end) {
1524 outw(last, ioaddr + lp->xmt_bar);
1525 outb(XMT_CMD, ioaddr);
1526 lp->tx_start = last; /* I don't like to change tx_start here */
1529 /* update the next address and the chain bit in the
1532 if (lp->tx_end != last) {
1533 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1534 outw(last, ioaddr + IO_PORT);
1537 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1538 status = inw(ioaddr + IO_PORT);
1539 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1541 /* Continue the transmit command */
1542 outb(RESUME_XMT_CMD, ioaddr);
1549 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1555 eepro_rx(struct net_device *dev)
1557 struct eepro_local *lp = netdev_priv(dev);
1558 short ioaddr = dev->base_addr;
1559 short boguscount = 20;
1560 short rcv_car = lp->rx_start;
1561 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1564 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1566 /* Set the read pointer to the start of the RCV */
1567 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1569 rcv_event = inw(ioaddr + IO_PORT);
1571 while (rcv_event == RCV_DONE) {
1573 rcv_status = inw(ioaddr + IO_PORT);
1574 rcv_next_frame = inw(ioaddr + IO_PORT);
1575 rcv_size = inw(ioaddr + IO_PORT);
1577 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1579 /* Malloc up new buffer. */
1580 struct sk_buff *skb;
1582 lp->stats.rx_bytes+=rcv_size;
1584 skb = dev_alloc_skb(rcv_size+5);
1586 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
1587 lp->stats.rx_dropped++;
1588 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1589 lp->rx_start = rcv_next_frame;
1590 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1596 if (lp->version == LAN595)
1597 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1598 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1599 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1600 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1601 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1602 (rcv_size + 3) >> 2);
1603 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1606 skb->protocol = eth_type_trans(skb,dev);
1608 dev->last_rx = jiffies;
1609 lp->stats.rx_packets++;
1612 else { /* Not sure will ever reach here,
1613 I set the 595 to discard bad received frames */
1614 lp->stats.rx_errors++;
1616 if (rcv_status & 0x0100)
1617 lp->stats.rx_over_errors++;
1619 else if (rcv_status & 0x0400)
1620 lp->stats.rx_frame_errors++;
1622 else if (rcv_status & 0x0800)
1623 lp->stats.rx_crc_errors++;
1625 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1626 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1629 if (rcv_status & 0x1000)
1630 lp->stats.rx_length_errors++;
1632 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1633 lp->rx_start = rcv_next_frame;
1635 if (--boguscount == 0)
1638 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1639 rcv_event = inw(ioaddr + IO_PORT);
1643 rcv_car = lp->rcv_upper_limit | 0xff;
1645 outw(rcv_car - 1, ioaddr + RCV_STOP);
1648 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1652 eepro_transmit_interrupt(struct net_device *dev)
1654 struct eepro_local *lp = netdev_priv(dev);
1655 short ioaddr = dev->base_addr;
1656 short boguscount = 25;
1659 while ((lp->tx_start != lp->tx_end) && boguscount--) {
1661 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1662 xmt_status = inw(ioaddr+IO_PORT);
1664 if (!(xmt_status & TX_DONE_BIT))
1667 xmt_status = inw(ioaddr+IO_PORT);
1668 lp->tx_start = inw(ioaddr+IO_PORT);
1670 netif_wake_queue (dev);
1672 if (xmt_status & TX_OK)
1673 lp->stats.tx_packets++;
1675 lp->stats.tx_errors++;
1676 if (xmt_status & 0x0400) {
1677 lp->stats.tx_carrier_errors++;
1678 printk(KERN_DEBUG "%s: carrier error\n",
1680 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1681 dev->name, xmt_status);
1684 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1685 dev->name, xmt_status);
1686 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1687 dev->name, xmt_status);
1690 if (xmt_status & 0x000f) {
1691 lp->stats.collisions += (xmt_status & 0x000f);
1694 if ((xmt_status & 0x0040) == 0x0) {
1695 lp->stats.tx_heartbeat_errors++;
1700 static int eepro_ethtool_get_settings(struct net_device *dev,
1701 struct ethtool_cmd *cmd)
1703 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1705 cmd->supported = SUPPORTED_10baseT_Half |
1706 SUPPORTED_10baseT_Full |
1708 cmd->advertising = ADVERTISED_10baseT_Half |
1709 ADVERTISED_10baseT_Full |
1712 if (GetBit(lp->word[5], ee_PortTPE)) {
1713 cmd->supported |= SUPPORTED_TP;
1714 cmd->advertising |= ADVERTISED_TP;
1716 if (GetBit(lp->word[5], ee_PortBNC)) {
1717 cmd->supported |= SUPPORTED_BNC;
1718 cmd->advertising |= ADVERTISED_BNC;
1720 if (GetBit(lp->word[5], ee_PortAUI)) {
1721 cmd->supported |= SUPPORTED_AUI;
1722 cmd->advertising |= ADVERTISED_AUI;
1725 cmd->speed = SPEED_10;
1727 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1728 cmd->duplex = DUPLEX_FULL;
1731 cmd->duplex = DUPLEX_HALF;
1734 cmd->port = dev->if_port;
1735 cmd->phy_address = dev->base_addr;
1736 cmd->transceiver = XCVR_INTERNAL;
1738 if (lp->word[0] & ee_AutoNeg) {
1745 static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1746 struct ethtool_drvinfo *drvinfo)
1748 strcpy(drvinfo->driver, DRV_NAME);
1749 strcpy(drvinfo->version, DRV_VERSION);
1750 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1753 static const struct ethtool_ops eepro_ethtool_ops = {
1754 .get_settings = eepro_ethtool_get_settings,
1755 .get_drvinfo = eepro_ethtool_get_drvinfo,
1761 static struct net_device *dev_eepro[MAX_EEPRO];
1763 static int io[MAX_EEPRO] = {
1764 [0 ... MAX_EEPRO-1] = -1
1766 static int irq[MAX_EEPRO];
1767 static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1768 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1770 static int autodetect;
1773 /* For linux 2.1.xx */
1775 MODULE_AUTHOR("Pascal Dupuis and others");
1776 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1777 MODULE_LICENSE("GPL");
1779 module_param_array(io, int, NULL, 0);
1780 module_param_array(irq, int, NULL, 0);
1781 module_param_array(mem, int, NULL, 0);
1782 module_param(autodetect, int, 0);
1783 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1784 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1785 MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1786 MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1788 int __init init_module(void)
1790 struct net_device *dev;
1792 if (io[0] == -1 && autodetect == 0) {
1793 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1794 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1797 else if (autodetect) {
1798 /* if autodetect is set then we must force detection */
1799 for (i = 0; i < MAX_EEPRO; i++) {
1803 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1806 for (i = 0; io[i] != -1 && i < MAX_EEPRO; i++) {
1807 dev = alloc_etherdev(sizeof(struct eepro_local));
1811 dev->mem_end = mem[i];
1812 dev->base_addr = io[i];
1815 if (do_eepro_probe(dev) == 0) {
1816 dev_eepro[n_eepro++] = dev;
1824 printk(KERN_INFO "%s", version);
1826 return n_eepro ? 0 : -ENODEV;
1830 cleanup_module(void)
1834 for (i=0; i<n_eepro; i++) {
1835 struct net_device *dev = dev_eepro[i];
1836 unregister_netdev(dev);
1837 release_region(dev->base_addr, EEPRO_IO_EXTENT);