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;
541 /* XXXX for multiple cards should this only be run once? */
544 #define WakeupPort 0x279
545 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
546 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
547 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
548 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
551 unsigned short int WS[32]=WakeupSeq;
553 if (request_region(WakeupPort, 2, "eepro wakeup")) {
555 printk(KERN_DEBUG "Waking UP\n");
557 outb_p(0,WakeupPort);
558 outb_p(0,WakeupPort);
559 for (i=0; i<32; i++) {
560 outb_p(WS[i],WakeupPort);
561 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
564 release_region(WakeupPort, 2);
566 printk(KERN_WARNING "PnP wakeup region busy!\n");
570 if (base_addr > 0x1ff) /* Check a single specified location. */
571 return eepro_probe1(dev, 0);
573 else if (base_addr != 0) /* Don't probe at all. */
576 for (i = 0; eepro_portlist[i]; i++) {
577 dev->base_addr = eepro_portlist[i];
579 if (eepro_probe1(dev, 1) == 0)
587 struct net_device * __init eepro_probe(int unit)
589 struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local));
593 return ERR_PTR(-ENODEV);
595 sprintf(dev->name, "eth%d", unit);
596 netdev_boot_setup_check(dev);
598 err = do_eepro_probe(dev);
608 static void __init printEEPROMInfo(struct net_device *dev)
610 struct eepro_local *lp = (struct eepro_local *)dev->priv;
611 int ioaddr = dev->base_addr;
616 for (i = 0; i < 8; i++)
618 for ( ; i < ee_SIZE; i++)
619 j += read_eeprom(ioaddr, i, dev);
621 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
624 printk(KERN_DEBUG "Word0:\n");
625 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
626 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
627 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
628 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
632 printk(KERN_DEBUG "Word1:\n");
633 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
634 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
635 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
636 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
637 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
638 printk(KERN_DEBUG " AutoPort: %d\n", GetBit(!Word,ee_Jabber));
639 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
643 printk(KERN_DEBUG "Word5:\n");
644 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
645 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
646 printk(KERN_DEBUG " Has ");
647 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
648 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
649 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
650 printk(KERN_DEBUG "port(s) \n");
653 printk(KERN_DEBUG "Word6:\n");
654 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
655 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
658 printk(KERN_DEBUG "Word7:\n");
659 printk(KERN_DEBUG " INT to IRQ:\n");
661 for (i=0, j=0; i<15; i++)
662 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
664 printk(KERN_DEBUG "\n");
667 /* function to recalculate the limits of buffer based on rcv_ram */
668 static void eepro_recalc (struct net_device *dev)
670 struct eepro_local * lp;
672 lp = netdev_priv(dev);
673 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
675 if (lp->eepro == LAN595FX_10ISA) {
676 lp->xmt_lower_limit = XMT_START_10;
677 lp->xmt_upper_limit = (lp->xmt_ram - 2);
678 lp->rcv_lower_limit = lp->xmt_ram;
679 lp->rcv_upper_limit = (RAM_SIZE - 2);
682 lp->rcv_lower_limit = RCV_START_PRO;
683 lp->rcv_upper_limit = (lp->rcv_ram - 2);
684 lp->xmt_lower_limit = lp->rcv_ram;
685 lp->xmt_upper_limit = (RAM_SIZE - 2);
689 /* prints boot-time info */
690 static void __init eepro_print_info (struct net_device *dev)
692 struct eepro_local * lp = netdev_priv(dev);
694 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
696 i = inb(dev->base_addr + ID_REG);
697 printk(KERN_DEBUG " id: %#x ",i);
698 printk(" io: %#x ", (unsigned)dev->base_addr);
702 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
703 dev->name, (unsigned)dev->base_addr);
706 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
707 dev->name, (unsigned)dev->base_addr);
710 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
711 dev->name, (unsigned)dev->base_addr);
714 printk("%s: Intel 82595-based lan card at %#x,",
715 dev->name, (unsigned)dev->base_addr);
718 for (i=0; i < 6; i++)
719 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
722 printk(KERN_DEBUG ", %dK RCV buffer",
723 (int)(lp->rcv_ram)/1024);
726 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
728 printk(", %s.\n", ifmap[dev->if_port]);
732 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
733 printk(KERN_DEBUG "%s: Concurrent Processing is "
734 "enabled but not used!\n", dev->name);
737 /* Check the station address for the manufacturer's code */
739 printEEPROMInfo(dev);
742 static const struct ethtool_ops eepro_ethtool_ops;
744 /* This is the real probe routine. Linux has a history of friendly device
745 probes on the ISA bus. A good device probe avoids doing writes, and
746 verifies that the correct device exists and functions. */
748 static int __init eepro_probe1(struct net_device *dev, int autoprobe)
750 unsigned short station_addr[3], id, counter;
752 struct eepro_local *lp;
753 int ioaddr = dev->base_addr;
756 /* Grab the region so we can find another board if autoIRQ fails. */
757 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
759 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
764 /* Now, we are going to check for the signature of the
765 ID_REG (register 2 of bank 0) */
767 id = inb(ioaddr + ID_REG);
769 if ((id & ID_REG_MASK) != ID_REG_SIG)
772 /* We seem to have the 82595 signature, let's
773 play with its counter (last 2 bits of
774 register 2 of bank 0) to be sure. */
776 counter = id & R_ROBIN_BITS;
778 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
781 lp = netdev_priv(dev);
782 memset(lp, 0, sizeof(struct eepro_local));
783 lp->xmt_bar = XMT_BAR_PRO;
784 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
785 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
786 lp->eeprom_reg = EEPROM_REG_PRO;
787 spin_lock_init(&lp->lock);
789 /* Now, get the ethernet hardware address from
791 station_addr[0] = read_eeprom(ioaddr, 2, dev);
793 /* FIXME - find another way to know that we've found
796 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
797 lp->eepro = LAN595FX_10ISA;
798 lp->eeprom_reg = EEPROM_REG_10;
799 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
800 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
801 lp->xmt_bar = XMT_BAR_10;
802 station_addr[0] = read_eeprom(ioaddr, 2, dev);
805 /* get all words at once. will be used here and for ethtool */
806 for (i = 0; i < 8; i++) {
807 lp->word[i] = read_eeprom(ioaddr, i, dev);
809 station_addr[1] = lp->word[3];
810 station_addr[2] = lp->word[4];
813 if (lp->word[7] == ee_FX_INT2IRQ)
815 else if (station_addr[2] == SA_ADDR1)
819 /* Fill in the 'dev' fields. */
820 for (i=0; i < 6; i++)
821 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
823 /* RX buffer must be more than 3K and less than 29K */
824 if (dev->mem_end < 3072 || dev->mem_end > 29696)
825 lp->rcv_ram = RCV_DEFAULT_RAM;
827 /* calculate {xmt,rcv}_{lower,upper}_limit */
830 if (GetBit(lp->word[5], ee_BNC_TPE))
835 if (dev->irq < 2 && lp->eepro != 0) {
836 /* Mask off INT number */
837 int count = lp->word[1] & 7;
838 unsigned irqMask = lp->word[7];
841 irqMask &= irqMask - 1;
843 count = ffs(irqMask);
846 dev->irq = count - 1;
849 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
851 } else if (dev->irq == 2) {
856 dev->open = eepro_open;
857 dev->stop = eepro_close;
858 dev->hard_start_xmit = eepro_send_packet;
859 dev->get_stats = eepro_get_stats;
860 dev->set_multicast_list = &set_multicast_list;
861 dev->tx_timeout = eepro_tx_timeout;
862 dev->watchdog_timeo = TX_TIMEOUT;
863 dev->ethtool_ops = &eepro_ethtool_ops;
865 /* print boot time info */
866 eepro_print_info(dev);
871 err = register_netdev(dev);
878 release_region(dev->base_addr, EEPRO_IO_EXTENT);
882 /* Open/initialize the board. This is called (in the current kernel)
883 sometime after booting when the 'ifconfig' program is run.
885 This routine should set everything up anew at each open, even
886 registers that "should" only need to be set once at boot, so that
887 there is non-reboot way to recover if something goes wrong.
890 static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
891 static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
892 static int eepro_grab_irq(struct net_device *dev)
894 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
895 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
897 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
899 /* Enable the interrupt line. */
900 eepro_en_intline(ioaddr);
902 /* be CAREFUL, BANK 0 now */
903 eepro_sw2bank0(ioaddr);
905 /* clear all interrupts */
906 eepro_clear_int(ioaddr);
908 /* Let EXEC event to interrupt */
909 eepro_en_intexec(ioaddr);
912 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
914 temp_reg = inb(ioaddr + INT_NO_REG);
915 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
917 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
919 if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) {
920 unsigned long irq_mask;
921 /* Twinkle the interrupt, and check if it's seen */
922 irq_mask = probe_irq_on();
924 eepro_diag(ioaddr); /* RESET the 82595 */
927 if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */
930 /* clear all interrupts */
931 eepro_clear_int(ioaddr);
935 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
937 /* Disable the physical interrupt line. */
938 eepro_dis_intline(ioaddr);
940 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
942 /* Mask all the interrupts. */
943 eepro_dis_int(ioaddr);
945 /* clear all interrupts */
946 eepro_clear_int(ioaddr);
951 static int eepro_open(struct net_device *dev)
953 unsigned short temp_reg, old8, old9;
955 int i, ioaddr = dev->base_addr;
956 struct eepro_local *lp = netdev_priv(dev);
959 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
961 irqMask = lp->word[7];
963 if (lp->eepro == LAN595FX_10ISA) {
964 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
966 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
968 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
969 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
972 else if ((dev->dev_addr[0] == SA_ADDR0 &&
973 dev->dev_addr[1] == SA_ADDR1 &&
974 dev->dev_addr[2] == SA_ADDR2))
977 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
978 } /* Yes, an Intel EtherExpress Pro/10 */
980 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
982 /* Get the interrupt vector for the 82595 */
983 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
984 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
988 if (request_irq(dev->irq , &eepro_interrupt, 0, dev->name, dev)) {
989 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
993 /* Initialize the 82595. */
995 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
996 temp_reg = inb(ioaddr + lp->eeprom_reg);
998 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
1001 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1003 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1004 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1005 for (i=0; i < 6; i++)
1006 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1008 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1009 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1010 | RCV_Discard_BadFrame, ioaddr + REG1);
1012 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1013 outb(temp_reg | 0x14, ioaddr + REG2);
1015 temp_reg = inb(ioaddr + REG3);
1016 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1018 /* Set the receiving mode */
1019 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1021 /* Set the interrupt vector */
1022 temp_reg = inb(ioaddr + INT_NO_REG);
1023 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1024 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1025 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1028 temp_reg = inb(ioaddr + INT_NO_REG);
1029 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1030 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1031 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1034 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1037 /* Initialize the RCV and XMT upper and lower limits */
1038 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1039 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
1040 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1041 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1043 /* Enable the interrupt line. */
1044 eepro_en_intline(ioaddr);
1046 /* Switch back to Bank 0 */
1047 eepro_sw2bank0(ioaddr);
1049 /* Let RX and TX events to interrupt */
1050 eepro_en_int(ioaddr);
1052 /* clear all interrupts */
1053 eepro_clear_int(ioaddr);
1055 /* Initialize RCV */
1056 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
1057 lp->rx_start = lp->rcv_lower_limit;
1058 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
1060 /* Initialize XMT */
1061 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
1062 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1065 /* Check for the i82595TX and i82595FX */
1066 old8 = inb(ioaddr + 8);
1067 outb(~old8, ioaddr + 8);
1069 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1071 printk(KERN_DEBUG "i82595 detected!\n");
1072 lp->version = LAN595;
1075 lp->version = LAN595TX;
1076 outb(old8, ioaddr + 8);
1077 old9 = inb(ioaddr + 9);
1079 if (irqMask==ee_FX_INT2IRQ) {
1080 if (net_debug > 3) {
1081 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1082 printk(KERN_DEBUG "i82595FX detected!\n");
1084 lp->version = LAN595FX;
1085 outb(old9, ioaddr + 9);
1086 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1087 problem of using Pentiums and
1089 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1090 temp_reg = inb(ioaddr + REG13);
1091 /* disable the full duplex mode since it is not
1092 applicable with the 10Base2 cable. */
1093 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1094 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1097 else if (net_debug > 3) {
1098 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1099 printk(KERN_DEBUG "i82595TX detected!\n");
1103 eepro_sel_reset(ioaddr);
1105 netif_start_queue(dev);
1108 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1111 eepro_en_rx(ioaddr);
1116 static void eepro_tx_timeout (struct net_device *dev)
1118 struct eepro_local *lp = netdev_priv(dev);
1119 int ioaddr = dev->base_addr;
1121 /* if (net_debug > 1) */
1122 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1123 "network cable problem");
1124 /* This is not a duplicate. One message for the console,
1125 one for the log file */
1126 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1127 "network cable problem");
1128 eepro_complete_selreset(ioaddr);
1132 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1134 struct eepro_local *lp = netdev_priv(dev);
1135 unsigned long flags;
1136 int ioaddr = dev->base_addr;
1137 short length = skb->len;
1140 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1142 if (length < ETH_ZLEN) {
1143 if (skb_padto(skb, ETH_ZLEN))
1147 netif_stop_queue (dev);
1149 eepro_dis_int(ioaddr);
1150 spin_lock_irqsave(&lp->lock, flags);
1153 unsigned char *buf = skb->data;
1155 if (hardware_send_packet(dev, buf, length))
1156 /* we won't wake queue here because we're out of space */
1157 lp->stats.tx_dropped++;
1159 lp->stats.tx_bytes+=skb->len;
1160 dev->trans_start = jiffies;
1161 netif_wake_queue(dev);
1166 dev_kfree_skb (skb);
1168 /* You might need to clean up and record Tx statistics here. */
1169 /* lp->stats.tx_aborted_errors++; */
1172 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1174 eepro_en_int(ioaddr);
1175 spin_unlock_irqrestore(&lp->lock, flags);
1181 /* The typical workload of the driver:
1182 Handle the network interface interrupts. */
1185 eepro_interrupt(int irq, void *dev_id)
1187 struct net_device *dev = dev_id;
1188 struct eepro_local *lp;
1189 int ioaddr, status, boguscount = 20;
1192 lp = netdev_priv(dev);
1194 spin_lock(&lp->lock);
1197 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1199 ioaddr = dev->base_addr;
1201 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1204 if (status & RX_INT) {
1206 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1208 eepro_dis_int(ioaddr);
1210 /* Get the received packets */
1211 eepro_ack_rx(ioaddr);
1214 eepro_en_int(ioaddr);
1216 if (status & TX_INT) {
1218 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1221 eepro_dis_int(ioaddr);
1223 /* Process the status of transmitted packets */
1224 eepro_ack_tx(ioaddr);
1225 eepro_transmit_interrupt(dev);
1227 eepro_en_int(ioaddr);
1232 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1234 spin_unlock(&lp->lock);
1235 return IRQ_RETVAL(handled);
1238 static int eepro_close(struct net_device *dev)
1240 struct eepro_local *lp = netdev_priv(dev);
1241 int ioaddr = dev->base_addr;
1244 netif_stop_queue(dev);
1246 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1248 /* Disable the physical interrupt line. */
1249 temp_reg = inb(ioaddr + REG1);
1250 outb(temp_reg & 0x7f, ioaddr + REG1);
1252 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1254 /* Flush the Tx and disable Rx. */
1255 outb(STOP_RCV_CMD, ioaddr);
1256 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1259 /* Mask all the interrupts. */
1260 eepro_dis_int(ioaddr);
1262 /* clear all interrupts */
1263 eepro_clear_int(ioaddr);
1265 /* Reset the 82595 */
1266 eepro_reset(ioaddr);
1268 /* release the interrupt */
1269 free_irq(dev->irq, dev);
1271 /* Update the statistics here. What statistics? */
1276 /* Get the current statistics. This may be called with the card open or
1278 static struct net_device_stats *
1279 eepro_get_stats(struct net_device *dev)
1281 struct eepro_local *lp = netdev_priv(dev);
1286 /* Set or clear the multicast filter for this adaptor.
1289 set_multicast_list(struct net_device *dev)
1291 struct eepro_local *lp = netdev_priv(dev);
1292 short ioaddr = dev->base_addr;
1293 unsigned short mode;
1294 struct dev_mc_list *dmi=dev->mc_list;
1296 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1299 * We must make the kernel realise we had to move
1300 * into promisc mode or we start all out war on
1301 * the cable. If it was a promisc request the
1302 * flag is already set. If not we assert it.
1304 dev->flags|=IFF_PROMISC;
1306 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1307 mode = inb(ioaddr + REG2);
1308 outb(mode | PRMSC_Mode, ioaddr + REG2);
1309 mode = inb(ioaddr + REG3);
1310 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1311 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1314 else if (dev->mc_count==0 )
1316 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1317 mode = inb(ioaddr + REG2);
1318 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1319 mode = inb(ioaddr + REG3);
1320 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1321 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1326 unsigned short status, *eaddrs;
1327 int i, boguscount = 0;
1329 /* Disable RX and TX interrupts. Necessary to avoid
1330 corruption of the HOST_ADDRESS_REG by interrupt
1331 service routines. */
1332 eepro_dis_int(ioaddr);
1334 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1335 mode = inb(ioaddr + REG2);
1336 outb(mode | Multi_IA, ioaddr + REG2);
1337 mode = inb(ioaddr + REG3);
1338 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1339 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1340 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1341 outw(MC_SETUP, ioaddr + IO_PORT);
1342 outw(0, ioaddr + IO_PORT);
1343 outw(0, ioaddr + IO_PORT);
1344 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1346 for (i = 0; i < dev->mc_count; i++)
1348 eaddrs=(unsigned short *)dmi->dmi_addr;
1350 outw(*eaddrs++, ioaddr + IO_PORT);
1351 outw(*eaddrs++, ioaddr + IO_PORT);
1352 outw(*eaddrs++, ioaddr + IO_PORT);
1355 eaddrs = (unsigned short *) dev->dev_addr;
1356 outw(eaddrs[0], ioaddr + IO_PORT);
1357 outw(eaddrs[1], ioaddr + IO_PORT);
1358 outw(eaddrs[2], ioaddr + IO_PORT);
1359 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1360 outb(MC_SETUP, ioaddr);
1362 /* Update the transmit queue */
1363 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1365 if (lp->tx_start != lp->tx_end)
1367 /* update the next address and the chain bit in the
1369 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1370 outw(i, ioaddr + IO_PORT);
1371 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1372 status = inw(ioaddr + IO_PORT);
1373 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1377 lp->tx_start = lp->tx_end = i ;
1380 /* Acknowledge that the MC setup is done */
1381 do { /* We should be doing this in the eepro_interrupt()! */
1384 if (inb(ioaddr + STATUS_REG) & 0x08)
1387 outb(0x08, ioaddr + STATUS_REG);
1389 if (i & 0x20) { /* command ABORTed */
1390 printk(KERN_NOTICE "%s: multicast setup failed.\n",
1393 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1394 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1395 dev->name, dev->mc_count,
1396 dev->mc_count > 1 ? "es":"");
1400 } while (++boguscount < 100);
1402 /* Re-enable RX and TX interrupts */
1403 eepro_en_int(ioaddr);
1405 if (lp->eepro == LAN595FX_10ISA) {
1406 eepro_complete_selreset(ioaddr);
1409 eepro_en_rx(ioaddr);
1412 /* The horrible routine to read a word from the serial EEPROM. */
1413 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1415 /* The delay between EEPROM clock transitions. */
1416 #define eeprom_delay() { udelay(40); }
1417 #define EE_READ_CMD (6 << 6)
1420 read_eeprom(int ioaddr, int location, struct net_device *dev)
1423 unsigned short retval = 0;
1424 struct eepro_local *lp = netdev_priv(dev);
1425 short ee_addr = ioaddr + lp->eeprom_reg;
1426 int read_cmd = location | EE_READ_CMD;
1427 short ctrl_val = EECS ;
1429 /* XXXX - black magic */
1430 eepro_sw2bank1(ioaddr);
1431 outb(0x00, ioaddr + STATUS_REG);
1432 /* XXXX - black magic */
1434 eepro_sw2bank2(ioaddr);
1435 outb(ctrl_val, ee_addr);
1437 /* Shift the read command bits out. */
1438 for (i = 8; i >= 0; i--) {
1439 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1441 outb(outval, ee_addr);
1442 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1444 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1447 outb(ctrl_val, ee_addr);
1449 for (i = 16; i > 0; i--) {
1450 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1451 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1452 outb(ctrl_val, ee_addr); eeprom_delay();
1455 /* Terminate the EEPROM access. */
1457 outb(ctrl_val | EESK, ee_addr);
1459 outb(ctrl_val, ee_addr);
1461 eepro_sw2bank0(ioaddr);
1466 hardware_send_packet(struct net_device *dev, void *buf, short length)
1468 struct eepro_local *lp = netdev_priv(dev);
1469 short ioaddr = dev->base_addr;
1470 unsigned status, tx_available, last, end;
1473 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1475 /* determine how much of the transmit buffer space is available */
1476 if (lp->tx_end > lp->tx_start)
1477 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1478 else if (lp->tx_end < lp->tx_start)
1479 tx_available = lp->tx_start - lp->tx_end;
1480 else tx_available = lp->xmt_ram;
1482 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1483 /* No space available ??? */
1488 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1490 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
1491 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
1492 /* Arrrr!!!, must keep the xmt header together,
1493 several days were lost to chase this one down. */
1494 last = lp->xmt_lower_limit;
1495 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1497 else end = lp->xmt_lower_limit + (end -
1498 lp->xmt_upper_limit + 2);
1501 outw(last, ioaddr + HOST_ADDRESS_REG);
1502 outw(XMT_CMD, ioaddr + IO_PORT);
1503 outw(0, ioaddr + IO_PORT);
1504 outw(end, ioaddr + IO_PORT);
1505 outw(length, ioaddr + IO_PORT);
1507 if (lp->version == LAN595)
1508 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1509 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1510 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1511 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1512 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1513 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1516 /* A dummy read to flush the DRAM write pipeline */
1517 status = inw(ioaddr + IO_PORT);
1519 if (lp->tx_start == lp->tx_end) {
1520 outw(last, ioaddr + lp->xmt_bar);
1521 outb(XMT_CMD, ioaddr);
1522 lp->tx_start = last; /* I don't like to change tx_start here */
1525 /* update the next address and the chain bit in the
1528 if (lp->tx_end != last) {
1529 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1530 outw(last, ioaddr + IO_PORT);
1533 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1534 status = inw(ioaddr + IO_PORT);
1535 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1537 /* Continue the transmit command */
1538 outb(RESUME_XMT_CMD, ioaddr);
1545 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1551 eepro_rx(struct net_device *dev)
1553 struct eepro_local *lp = netdev_priv(dev);
1554 short ioaddr = dev->base_addr;
1555 short boguscount = 20;
1556 short rcv_car = lp->rx_start;
1557 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1560 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1562 /* Set the read pointer to the start of the RCV */
1563 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1565 rcv_event = inw(ioaddr + IO_PORT);
1567 while (rcv_event == RCV_DONE) {
1569 rcv_status = inw(ioaddr + IO_PORT);
1570 rcv_next_frame = inw(ioaddr + IO_PORT);
1571 rcv_size = inw(ioaddr + IO_PORT);
1573 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1575 /* Malloc up new buffer. */
1576 struct sk_buff *skb;
1578 lp->stats.rx_bytes+=rcv_size;
1580 skb = dev_alloc_skb(rcv_size+5);
1582 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
1583 lp->stats.rx_dropped++;
1584 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1585 lp->rx_start = rcv_next_frame;
1586 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1592 if (lp->version == LAN595)
1593 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1594 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1595 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1596 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1597 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1598 (rcv_size + 3) >> 2);
1599 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1602 skb->protocol = eth_type_trans(skb,dev);
1604 dev->last_rx = jiffies;
1605 lp->stats.rx_packets++;
1608 else { /* Not sure will ever reach here,
1609 I set the 595 to discard bad received frames */
1610 lp->stats.rx_errors++;
1612 if (rcv_status & 0x0100)
1613 lp->stats.rx_over_errors++;
1615 else if (rcv_status & 0x0400)
1616 lp->stats.rx_frame_errors++;
1618 else if (rcv_status & 0x0800)
1619 lp->stats.rx_crc_errors++;
1621 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1622 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1625 if (rcv_status & 0x1000)
1626 lp->stats.rx_length_errors++;
1628 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1629 lp->rx_start = rcv_next_frame;
1631 if (--boguscount == 0)
1634 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1635 rcv_event = inw(ioaddr + IO_PORT);
1639 rcv_car = lp->rcv_upper_limit | 0xff;
1641 outw(rcv_car - 1, ioaddr + RCV_STOP);
1644 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1648 eepro_transmit_interrupt(struct net_device *dev)
1650 struct eepro_local *lp = netdev_priv(dev);
1651 short ioaddr = dev->base_addr;
1652 short boguscount = 25;
1655 while ((lp->tx_start != lp->tx_end) && boguscount--) {
1657 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1658 xmt_status = inw(ioaddr+IO_PORT);
1660 if (!(xmt_status & TX_DONE_BIT))
1663 xmt_status = inw(ioaddr+IO_PORT);
1664 lp->tx_start = inw(ioaddr+IO_PORT);
1666 netif_wake_queue (dev);
1668 if (xmt_status & TX_OK)
1669 lp->stats.tx_packets++;
1671 lp->stats.tx_errors++;
1672 if (xmt_status & 0x0400) {
1673 lp->stats.tx_carrier_errors++;
1674 printk(KERN_DEBUG "%s: carrier error\n",
1676 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1677 dev->name, xmt_status);
1680 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1681 dev->name, xmt_status);
1682 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1683 dev->name, xmt_status);
1686 if (xmt_status & 0x000f) {
1687 lp->stats.collisions += (xmt_status & 0x000f);
1690 if ((xmt_status & 0x0040) == 0x0) {
1691 lp->stats.tx_heartbeat_errors++;
1696 static int eepro_ethtool_get_settings(struct net_device *dev,
1697 struct ethtool_cmd *cmd)
1699 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1701 cmd->supported = SUPPORTED_10baseT_Half |
1702 SUPPORTED_10baseT_Full |
1704 cmd->advertising = ADVERTISED_10baseT_Half |
1705 ADVERTISED_10baseT_Full |
1708 if (GetBit(lp->word[5], ee_PortTPE)) {
1709 cmd->supported |= SUPPORTED_TP;
1710 cmd->advertising |= ADVERTISED_TP;
1712 if (GetBit(lp->word[5], ee_PortBNC)) {
1713 cmd->supported |= SUPPORTED_BNC;
1714 cmd->advertising |= ADVERTISED_BNC;
1716 if (GetBit(lp->word[5], ee_PortAUI)) {
1717 cmd->supported |= SUPPORTED_AUI;
1718 cmd->advertising |= ADVERTISED_AUI;
1721 cmd->speed = SPEED_10;
1723 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1724 cmd->duplex = DUPLEX_FULL;
1727 cmd->duplex = DUPLEX_HALF;
1730 cmd->port = dev->if_port;
1731 cmd->phy_address = dev->base_addr;
1732 cmd->transceiver = XCVR_INTERNAL;
1734 if (lp->word[0] & ee_AutoNeg) {
1741 static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1742 struct ethtool_drvinfo *drvinfo)
1744 strcpy(drvinfo->driver, DRV_NAME);
1745 strcpy(drvinfo->version, DRV_VERSION);
1746 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1749 static const struct ethtool_ops eepro_ethtool_ops = {
1750 .get_settings = eepro_ethtool_get_settings,
1751 .get_drvinfo = eepro_ethtool_get_drvinfo,
1757 static struct net_device *dev_eepro[MAX_EEPRO];
1759 static int io[MAX_EEPRO] = {
1760 [0 ... MAX_EEPRO-1] = -1
1762 static int irq[MAX_EEPRO];
1763 static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1764 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1766 static int autodetect;
1769 /* For linux 2.1.xx */
1771 MODULE_AUTHOR("Pascal Dupuis and others");
1772 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1773 MODULE_LICENSE("GPL");
1775 module_param_array(io, int, NULL, 0);
1776 module_param_array(irq, int, NULL, 0);
1777 module_param_array(mem, int, NULL, 0);
1778 module_param(autodetect, int, 0);
1779 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1780 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1781 MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1782 MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1784 int __init init_module(void)
1786 struct net_device *dev;
1788 if (io[0] == -1 && autodetect == 0) {
1789 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1790 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1793 else if (autodetect) {
1794 /* if autodetect is set then we must force detection */
1795 for (i = 0; i < MAX_EEPRO; i++) {
1799 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1802 for (i = 0; io[i] != -1 && i < MAX_EEPRO; i++) {
1803 dev = alloc_etherdev(sizeof(struct eepro_local));
1807 dev->mem_end = mem[i];
1808 dev->base_addr = io[i];
1811 if (do_eepro_probe(dev) == 0) {
1812 dev_eepro[n_eepro++] = dev;
1820 printk(KERN_INFO "%s", version);
1822 return n_eepro ? 0 : -ENODEV;
1826 cleanup_module(void)
1830 for (i=0; i<n_eepro; i++) {
1831 struct net_device *dev = dev_eepro[i];
1832 unregister_netdev(dev);
1833 release_region(dev->base_addr, EEPRO_IO_EXTENT);