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 "0.13b"
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, struct pt_regs *regs);
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 (check_region(WakeupPort, 2)==0) {
558 printk(KERN_DEBUG "Waking UP\n");
560 outb_p(0,WakeupPort);
561 outb_p(0,WakeupPort);
562 for (i=0; i<32; i++) {
563 outb_p(WS[i],WakeupPort);
564 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
566 } else printk(KERN_WARNING "Checkregion Failed!\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 SET_MODULE_OWNER(dev);
597 sprintf(dev->name, "eth%d", unit);
598 netdev_boot_setup_check(dev);
600 err = do_eepro_probe(dev);
603 err = register_netdev(dev);
608 release_region(dev->base_addr, EEPRO_IO_EXTENT);
615 static void __init printEEPROMInfo(struct net_device *dev)
617 struct eepro_local *lp = (struct eepro_local *)dev->priv;
618 int ioaddr = dev->base_addr;
623 for (i = 0; i < 8; i++)
625 for ( ; i < ee_SIZE; i++)
626 j += read_eeprom(ioaddr, i, dev);
628 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
631 printk(KERN_DEBUG "Word0:\n");
632 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
633 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
634 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
635 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
639 printk(KERN_DEBUG "Word1:\n");
640 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
641 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
642 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
643 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
644 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
645 printk(KERN_DEBUG " AutoPort: %d\n", GetBit(!Word,ee_Jabber));
646 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
650 printk(KERN_DEBUG "Word5:\n");
651 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
652 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
653 printk(KERN_DEBUG " Has ");
654 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
655 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
656 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
657 printk(KERN_DEBUG "port(s) \n");
660 printk(KERN_DEBUG "Word6:\n");
661 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
662 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
665 printk(KERN_DEBUG "Word7:\n");
666 printk(KERN_DEBUG " INT to IRQ:\n");
668 for (i=0, j=0; i<15; i++)
669 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
671 printk(KERN_DEBUG "\n");
674 /* function to recalculate the limits of buffer based on rcv_ram */
675 static void eepro_recalc (struct net_device *dev)
677 struct eepro_local * lp;
679 lp = netdev_priv(dev);
680 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
682 if (lp->eepro == LAN595FX_10ISA) {
683 lp->xmt_lower_limit = XMT_START_10;
684 lp->xmt_upper_limit = (lp->xmt_ram - 2);
685 lp->rcv_lower_limit = lp->xmt_ram;
686 lp->rcv_upper_limit = (RAM_SIZE - 2);
689 lp->rcv_lower_limit = RCV_START_PRO;
690 lp->rcv_upper_limit = (lp->rcv_ram - 2);
691 lp->xmt_lower_limit = lp->rcv_ram;
692 lp->xmt_upper_limit = (RAM_SIZE - 2);
696 /* prints boot-time info */
697 static void __init eepro_print_info (struct net_device *dev)
699 struct eepro_local * lp = netdev_priv(dev);
701 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
703 i = inb(dev->base_addr + ID_REG);
704 printk(KERN_DEBUG " id: %#x ",i);
705 printk(" io: %#x ", (unsigned)dev->base_addr);
709 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
710 dev->name, (unsigned)dev->base_addr);
713 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
714 dev->name, (unsigned)dev->base_addr);
717 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
718 dev->name, (unsigned)dev->base_addr);
721 printk("%s: Intel 82595-based lan card at %#x,",
722 dev->name, (unsigned)dev->base_addr);
725 for (i=0; i < 6; i++)
726 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
729 printk(KERN_DEBUG ", %dK RCV buffer",
730 (int)(lp->rcv_ram)/1024);
733 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
735 printk(", %s.\n", ifmap[dev->if_port]);
739 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
740 printk(KERN_DEBUG "%s: Concurrent Processing is "
741 "enabled but not used!\n", dev->name);
744 /* Check the station address for the manufacturer's code */
746 printEEPROMInfo(dev);
749 static struct ethtool_ops eepro_ethtool_ops;
751 /* This is the real probe routine. Linux has a history of friendly device
752 probes on the ISA bus. A good device probe avoids doing writes, and
753 verifies that the correct device exists and functions. */
755 static int __init eepro_probe1(struct net_device *dev, int autoprobe)
757 unsigned short station_addr[3], id, counter;
759 struct eepro_local *lp;
760 int ioaddr = dev->base_addr;
762 /* Grab the region so we can find another board if autoIRQ fails. */
763 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
765 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
770 /* Now, we are going to check for the signature of the
771 ID_REG (register 2 of bank 0) */
773 id = inb(ioaddr + ID_REG);
775 if ((id & ID_REG_MASK) != ID_REG_SIG)
778 /* We seem to have the 82595 signature, let's
779 play with its counter (last 2 bits of
780 register 2 of bank 0) to be sure. */
782 counter = id & R_ROBIN_BITS;
784 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
787 lp = netdev_priv(dev);
788 memset(lp, 0, sizeof(struct eepro_local));
789 lp->xmt_bar = XMT_BAR_PRO;
790 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
791 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
792 lp->eeprom_reg = EEPROM_REG_PRO;
793 spin_lock_init(&lp->lock);
795 /* Now, get the ethernet hardware address from
797 station_addr[0] = read_eeprom(ioaddr, 2, dev);
799 /* FIXME - find another way to know that we've found
802 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
803 lp->eepro = LAN595FX_10ISA;
804 lp->eeprom_reg = EEPROM_REG_10;
805 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
806 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
807 lp->xmt_bar = XMT_BAR_10;
808 station_addr[0] = read_eeprom(ioaddr, 2, dev);
811 /* get all words at once. will be used here and for ethtool */
812 for (i = 0; i < 8; i++) {
813 lp->word[i] = read_eeprom(ioaddr, i, dev);
815 station_addr[1] = lp->word[3];
816 station_addr[2] = lp->word[4];
819 if (lp->word[7] == ee_FX_INT2IRQ)
821 else if (station_addr[2] == SA_ADDR1)
825 /* Fill in the 'dev' fields. */
826 for (i=0; i < 6; i++)
827 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
829 /* RX buffer must be more than 3K and less than 29K */
830 if (dev->mem_end < 3072 || dev->mem_end > 29696)
831 lp->rcv_ram = RCV_DEFAULT_RAM;
833 /* calculate {xmt,rcv}_{lower,upper}_limit */
836 if (GetBit(lp->word[5], ee_BNC_TPE))
841 if (dev->irq < 2 && lp->eepro != 0) {
842 /* Mask off INT number */
843 int count = lp->word[1] & 7;
844 unsigned irqMask = lp->word[7];
847 irqMask &= irqMask - 1;
849 count = ffs(irqMask);
852 dev->irq = count - 1;
855 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
857 } else if (dev->irq == 2) {
862 dev->open = eepro_open;
863 dev->stop = eepro_close;
864 dev->hard_start_xmit = eepro_send_packet;
865 dev->get_stats = eepro_get_stats;
866 dev->set_multicast_list = &set_multicast_list;
867 dev->tx_timeout = eepro_tx_timeout;
868 dev->watchdog_timeo = TX_TIMEOUT;
869 dev->ethtool_ops = &eepro_ethtool_ops;
871 /* print boot time info */
872 eepro_print_info(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, SA_SHIRQ, "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);
994 if (((irq2dev_map[dev->irq] != 0)
995 || (irq2dev_map[dev->irq] = dev) == 0) &&
996 (irq2dev_map[dev->irq]!=dev)) {
997 /* printk("%s: IRQ map wrong\n", dev->name); */
998 free_irq(dev->irq, dev);
1003 /* Initialize the 82595. */
1005 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1006 temp_reg = inb(ioaddr + lp->eeprom_reg);
1008 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
1011 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1013 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1014 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1015 for (i=0; i < 6; i++)
1016 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1018 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1019 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1020 | RCV_Discard_BadFrame, ioaddr + REG1);
1022 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1023 outb(temp_reg | 0x14, ioaddr + REG2);
1025 temp_reg = inb(ioaddr + REG3);
1026 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1028 /* Set the receiving mode */
1029 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1031 /* Set the interrupt vector */
1032 temp_reg = inb(ioaddr + INT_NO_REG);
1033 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1034 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1035 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1038 temp_reg = inb(ioaddr + INT_NO_REG);
1039 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1040 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1041 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1044 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1047 /* Initialize the RCV and XMT upper and lower limits */
1048 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1049 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
1050 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1051 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1053 /* Enable the interrupt line. */
1054 eepro_en_intline(ioaddr);
1056 /* Switch back to Bank 0 */
1057 eepro_sw2bank0(ioaddr);
1059 /* Let RX and TX events to interrupt */
1060 eepro_en_int(ioaddr);
1062 /* clear all interrupts */
1063 eepro_clear_int(ioaddr);
1065 /* Initialize RCV */
1066 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
1067 lp->rx_start = lp->rcv_lower_limit;
1068 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
1070 /* Initialize XMT */
1071 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
1072 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1075 /* Check for the i82595TX and i82595FX */
1076 old8 = inb(ioaddr + 8);
1077 outb(~old8, ioaddr + 8);
1079 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1081 printk(KERN_DEBUG "i82595 detected!\n");
1082 lp->version = LAN595;
1085 lp->version = LAN595TX;
1086 outb(old8, ioaddr + 8);
1087 old9 = inb(ioaddr + 9);
1089 if (irqMask==ee_FX_INT2IRQ) {
1090 if (net_debug > 3) {
1091 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1092 printk(KERN_DEBUG "i82595FX detected!\n");
1094 lp->version = LAN595FX;
1095 outb(old9, ioaddr + 9);
1096 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1097 problem of using Pentiums and
1099 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1100 temp_reg = inb(ioaddr + REG13);
1101 /* disable the full duplex mode since it is not
1102 applicable with the 10Base2 cable. */
1103 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1104 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1107 else if (net_debug > 3) {
1108 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1109 printk(KERN_DEBUG "i82595TX detected!\n");
1113 eepro_sel_reset(ioaddr);
1115 netif_start_queue(dev);
1118 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1121 eepro_en_rx(ioaddr);
1126 static void eepro_tx_timeout (struct net_device *dev)
1128 struct eepro_local *lp = netdev_priv(dev);
1129 int ioaddr = dev->base_addr;
1131 /* if (net_debug > 1) */
1132 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1133 "network cable problem");
1134 /* This is not a duplicate. One message for the console,
1135 one for the the log file */
1136 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1137 "network cable problem");
1138 eepro_complete_selreset(ioaddr);
1142 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1144 struct eepro_local *lp = netdev_priv(dev);
1145 unsigned long flags;
1146 int ioaddr = dev->base_addr;
1147 short length = skb->len;
1150 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1152 if (length < ETH_ZLEN) {
1153 skb = skb_padto(skb, ETH_ZLEN);
1158 netif_stop_queue (dev);
1160 eepro_dis_int(ioaddr);
1161 spin_lock_irqsave(&lp->lock, flags);
1164 unsigned char *buf = skb->data;
1166 if (hardware_send_packet(dev, buf, length))
1167 /* we won't wake queue here because we're out of space */
1168 lp->stats.tx_dropped++;
1170 lp->stats.tx_bytes+=skb->len;
1171 dev->trans_start = jiffies;
1172 netif_wake_queue(dev);
1177 dev_kfree_skb (skb);
1179 /* You might need to clean up and record Tx statistics here. */
1180 /* lp->stats.tx_aborted_errors++; */
1183 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1185 eepro_en_int(ioaddr);
1186 spin_unlock_irqrestore(&lp->lock, flags);
1192 /* The typical workload of the driver:
1193 Handle the network interface interrupts. */
1196 eepro_interrupt(int irq, void *dev_id, struct pt_regs * regs)
1198 struct net_device *dev = (struct net_device *)dev_id;
1199 /* (struct net_device *)(irq2dev_map[irq]);*/
1200 struct eepro_local *lp;
1201 int ioaddr, status, boguscount = 20;
1205 printk (KERN_ERR "eepro_interrupt(): irq %d for unknown device.\\n", irq);
1209 lp = netdev_priv(dev);
1211 spin_lock(&lp->lock);
1214 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1216 ioaddr = dev->base_addr;
1218 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1221 if (status & RX_INT) {
1223 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1225 eepro_dis_int(ioaddr);
1227 /* Get the received packets */
1228 eepro_ack_rx(ioaddr);
1231 eepro_en_int(ioaddr);
1233 if (status & TX_INT) {
1235 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1238 eepro_dis_int(ioaddr);
1240 /* Process the status of transmitted packets */
1241 eepro_ack_tx(ioaddr);
1242 eepro_transmit_interrupt(dev);
1244 eepro_en_int(ioaddr);
1249 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1251 spin_unlock(&lp->lock);
1252 return IRQ_RETVAL(handled);
1255 static int eepro_close(struct net_device *dev)
1257 struct eepro_local *lp = netdev_priv(dev);
1258 int ioaddr = dev->base_addr;
1261 netif_stop_queue(dev);
1263 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1265 /* Disable the physical interrupt line. */
1266 temp_reg = inb(ioaddr + REG1);
1267 outb(temp_reg & 0x7f, ioaddr + REG1);
1269 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1271 /* Flush the Tx and disable Rx. */
1272 outb(STOP_RCV_CMD, ioaddr);
1273 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1276 /* Mask all the interrupts. */
1277 eepro_dis_int(ioaddr);
1279 /* clear all interrupts */
1280 eepro_clear_int(ioaddr);
1282 /* Reset the 82595 */
1283 eepro_reset(ioaddr);
1285 /* release the interrupt */
1286 free_irq(dev->irq, dev);
1289 irq2dev_map[dev->irq] = 0;
1292 /* Update the statistics here. What statistics? */
1297 /* Get the current statistics. This may be called with the card open or
1299 static struct net_device_stats *
1300 eepro_get_stats(struct net_device *dev)
1302 struct eepro_local *lp = netdev_priv(dev);
1307 /* Set or clear the multicast filter for this adaptor.
1310 set_multicast_list(struct net_device *dev)
1312 struct eepro_local *lp = netdev_priv(dev);
1313 short ioaddr = dev->base_addr;
1314 unsigned short mode;
1315 struct dev_mc_list *dmi=dev->mc_list;
1317 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1320 * We must make the kernel realise we had to move
1321 * into promisc mode or we start all out war on
1322 * the cable. If it was a promisc request the
1323 * flag is already set. If not we assert it.
1325 dev->flags|=IFF_PROMISC;
1327 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1328 mode = inb(ioaddr + REG2);
1329 outb(mode | PRMSC_Mode, ioaddr + REG2);
1330 mode = inb(ioaddr + REG3);
1331 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1332 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1333 printk(KERN_INFO "%s: promiscuous mode enabled.\n", dev->name);
1336 else if (dev->mc_count==0 )
1338 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1339 mode = inb(ioaddr + REG2);
1340 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
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 */
1348 unsigned short status, *eaddrs;
1349 int i, boguscount = 0;
1351 /* Disable RX and TX interrupts. Necessary to avoid
1352 corruption of the HOST_ADDRESS_REG by interrupt
1353 service routines. */
1354 eepro_dis_int(ioaddr);
1356 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1357 mode = inb(ioaddr + REG2);
1358 outb(mode | Multi_IA, ioaddr + REG2);
1359 mode = inb(ioaddr + REG3);
1360 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1361 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1362 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1363 outw(MC_SETUP, ioaddr + IO_PORT);
1364 outw(0, ioaddr + IO_PORT);
1365 outw(0, ioaddr + IO_PORT);
1366 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1368 for (i = 0; i < dev->mc_count; i++)
1370 eaddrs=(unsigned short *)dmi->dmi_addr;
1372 outw(*eaddrs++, ioaddr + IO_PORT);
1373 outw(*eaddrs++, ioaddr + IO_PORT);
1374 outw(*eaddrs++, ioaddr + IO_PORT);
1377 eaddrs = (unsigned short *) dev->dev_addr;
1378 outw(eaddrs[0], ioaddr + IO_PORT);
1379 outw(eaddrs[1], ioaddr + IO_PORT);
1380 outw(eaddrs[2], ioaddr + IO_PORT);
1381 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1382 outb(MC_SETUP, ioaddr);
1384 /* Update the transmit queue */
1385 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1387 if (lp->tx_start != lp->tx_end)
1389 /* update the next address and the chain bit in the
1391 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1392 outw(i, ioaddr + IO_PORT);
1393 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1394 status = inw(ioaddr + IO_PORT);
1395 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1399 lp->tx_start = lp->tx_end = i ;
1402 /* Acknowledge that the MC setup is done */
1403 do { /* We should be doing this in the eepro_interrupt()! */
1406 if (inb(ioaddr + STATUS_REG) & 0x08)
1409 outb(0x08, ioaddr + STATUS_REG);
1411 if (i & 0x20) { /* command ABORTed */
1412 printk(KERN_NOTICE "%s: multicast setup failed.\n",
1415 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1416 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1417 dev->name, dev->mc_count,
1418 dev->mc_count > 1 ? "es":"");
1422 } while (++boguscount < 100);
1424 /* Re-enable RX and TX interrupts */
1425 eepro_en_int(ioaddr);
1427 if (lp->eepro == LAN595FX_10ISA) {
1428 eepro_complete_selreset(ioaddr);
1431 eepro_en_rx(ioaddr);
1434 /* The horrible routine to read a word from the serial EEPROM. */
1435 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1437 /* The delay between EEPROM clock transitions. */
1438 #define eeprom_delay() { udelay(40); }
1439 #define EE_READ_CMD (6 << 6)
1442 read_eeprom(int ioaddr, int location, struct net_device *dev)
1445 unsigned short retval = 0;
1446 struct eepro_local *lp = netdev_priv(dev);
1447 short ee_addr = ioaddr + lp->eeprom_reg;
1448 int read_cmd = location | EE_READ_CMD;
1449 short ctrl_val = EECS ;
1451 /* XXXX - black magic */
1452 eepro_sw2bank1(ioaddr);
1453 outb(0x00, ioaddr + STATUS_REG);
1454 /* XXXX - black magic */
1456 eepro_sw2bank2(ioaddr);
1457 outb(ctrl_val, ee_addr);
1459 /* Shift the read command bits out. */
1460 for (i = 8; i >= 0; i--) {
1461 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1463 outb(outval, ee_addr);
1464 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1466 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1469 outb(ctrl_val, ee_addr);
1471 for (i = 16; i > 0; i--) {
1472 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1473 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1474 outb(ctrl_val, ee_addr); eeprom_delay();
1477 /* Terminate the EEPROM access. */
1479 outb(ctrl_val | EESK, ee_addr);
1481 outb(ctrl_val, ee_addr);
1483 eepro_sw2bank0(ioaddr);
1488 hardware_send_packet(struct net_device *dev, void *buf, short length)
1490 struct eepro_local *lp = netdev_priv(dev);
1491 short ioaddr = dev->base_addr;
1492 unsigned status, tx_available, last, end;
1495 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1497 /* determine how much of the transmit buffer space is available */
1498 if (lp->tx_end > lp->tx_start)
1499 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1500 else if (lp->tx_end < lp->tx_start)
1501 tx_available = lp->tx_start - lp->tx_end;
1502 else tx_available = lp->xmt_ram;
1504 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1505 /* No space available ??? */
1510 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1512 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
1513 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
1514 /* Arrrr!!!, must keep the xmt header together,
1515 several days were lost to chase this one down. */
1516 last = lp->xmt_lower_limit;
1517 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1519 else end = lp->xmt_lower_limit + (end -
1520 lp->xmt_upper_limit + 2);
1523 outw(last, ioaddr + HOST_ADDRESS_REG);
1524 outw(XMT_CMD, ioaddr + IO_PORT);
1525 outw(0, ioaddr + IO_PORT);
1526 outw(end, ioaddr + IO_PORT);
1527 outw(length, ioaddr + IO_PORT);
1529 if (lp->version == LAN595)
1530 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1531 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1532 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1533 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1534 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1535 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1538 /* A dummy read to flush the DRAM write pipeline */
1539 status = inw(ioaddr + IO_PORT);
1541 if (lp->tx_start == lp->tx_end) {
1542 outw(last, ioaddr + lp->xmt_bar);
1543 outb(XMT_CMD, ioaddr);
1544 lp->tx_start = last; /* I don't like to change tx_start here */
1547 /* update the next address and the chain bit in the
1550 if (lp->tx_end != last) {
1551 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1552 outw(last, ioaddr + IO_PORT);
1555 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1556 status = inw(ioaddr + IO_PORT);
1557 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1559 /* Continue the transmit command */
1560 outb(RESUME_XMT_CMD, ioaddr);
1567 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1573 eepro_rx(struct net_device *dev)
1575 struct eepro_local *lp = netdev_priv(dev);
1576 short ioaddr = dev->base_addr;
1577 short boguscount = 20;
1578 short rcv_car = lp->rx_start;
1579 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1582 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1584 /* Set the read pointer to the start of the RCV */
1585 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1587 rcv_event = inw(ioaddr + IO_PORT);
1589 while (rcv_event == RCV_DONE) {
1591 rcv_status = inw(ioaddr + IO_PORT);
1592 rcv_next_frame = inw(ioaddr + IO_PORT);
1593 rcv_size = inw(ioaddr + IO_PORT);
1595 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1597 /* Malloc up new buffer. */
1598 struct sk_buff *skb;
1600 lp->stats.rx_bytes+=rcv_size;
1602 skb = dev_alloc_skb(rcv_size+5);
1604 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
1605 lp->stats.rx_dropped++;
1606 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1607 lp->rx_start = rcv_next_frame;
1608 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1615 if (lp->version == LAN595)
1616 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1617 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1618 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1619 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1620 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1621 (rcv_size + 3) >> 2);
1622 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1625 skb->protocol = eth_type_trans(skb,dev);
1627 dev->last_rx = jiffies;
1628 lp->stats.rx_packets++;
1631 else { /* Not sure will ever reach here,
1632 I set the 595 to discard bad received frames */
1633 lp->stats.rx_errors++;
1635 if (rcv_status & 0x0100)
1636 lp->stats.rx_over_errors++;
1638 else if (rcv_status & 0x0400)
1639 lp->stats.rx_frame_errors++;
1641 else if (rcv_status & 0x0800)
1642 lp->stats.rx_crc_errors++;
1644 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1645 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1648 if (rcv_status & 0x1000)
1649 lp->stats.rx_length_errors++;
1651 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1652 lp->rx_start = rcv_next_frame;
1654 if (--boguscount == 0)
1657 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1658 rcv_event = inw(ioaddr + IO_PORT);
1662 rcv_car = lp->rcv_upper_limit | 0xff;
1664 outw(rcv_car - 1, ioaddr + RCV_STOP);
1667 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1671 eepro_transmit_interrupt(struct net_device *dev)
1673 struct eepro_local *lp = netdev_priv(dev);
1674 short ioaddr = dev->base_addr;
1675 short boguscount = 25;
1678 while ((lp->tx_start != lp->tx_end) && boguscount--) {
1680 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1681 xmt_status = inw(ioaddr+IO_PORT);
1683 if (!(xmt_status & TX_DONE_BIT))
1686 xmt_status = inw(ioaddr+IO_PORT);
1687 lp->tx_start = inw(ioaddr+IO_PORT);
1689 netif_wake_queue (dev);
1691 if (xmt_status & TX_OK)
1692 lp->stats.tx_packets++;
1694 lp->stats.tx_errors++;
1695 if (xmt_status & 0x0400) {
1696 lp->stats.tx_carrier_errors++;
1697 printk(KERN_DEBUG "%s: carrier error\n",
1699 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1700 dev->name, xmt_status);
1703 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1704 dev->name, xmt_status);
1705 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1706 dev->name, xmt_status);
1709 if (xmt_status & 0x000f) {
1710 lp->stats.collisions += (xmt_status & 0x000f);
1713 if ((xmt_status & 0x0040) == 0x0) {
1714 lp->stats.tx_heartbeat_errors++;
1719 static int eepro_ethtool_get_settings(struct net_device *dev,
1720 struct ethtool_cmd *cmd)
1722 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1724 cmd->supported = SUPPORTED_10baseT_Half |
1725 SUPPORTED_10baseT_Full |
1727 cmd->advertising = ADVERTISED_10baseT_Half |
1728 ADVERTISED_10baseT_Full |
1731 if (GetBit(lp->word[5], ee_PortTPE)) {
1732 cmd->supported |= SUPPORTED_TP;
1733 cmd->advertising |= ADVERTISED_TP;
1735 if (GetBit(lp->word[5], ee_PortBNC)) {
1736 cmd->supported |= SUPPORTED_BNC;
1737 cmd->advertising |= ADVERTISED_BNC;
1739 if (GetBit(lp->word[5], ee_PortAUI)) {
1740 cmd->supported |= SUPPORTED_AUI;
1741 cmd->advertising |= ADVERTISED_AUI;
1744 cmd->speed = SPEED_10;
1746 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1747 cmd->duplex = DUPLEX_FULL;
1750 cmd->duplex = DUPLEX_HALF;
1753 cmd->port = dev->if_port;
1754 cmd->phy_address = dev->base_addr;
1755 cmd->transceiver = XCVR_INTERNAL;
1757 if (lp->word[0] & ee_AutoNeg) {
1764 static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1765 struct ethtool_drvinfo *drvinfo)
1767 strcpy(drvinfo->driver, DRV_NAME);
1768 strcpy(drvinfo->version, DRV_VERSION);
1769 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1772 static struct ethtool_ops eepro_ethtool_ops = {
1773 .get_settings = eepro_ethtool_get_settings,
1774 .get_drvinfo = eepro_ethtool_get_drvinfo,
1780 static struct net_device *dev_eepro[MAX_EEPRO];
1782 static int io[MAX_EEPRO] = {
1783 [0 ... MAX_EEPRO-1] = -1
1785 static int irq[MAX_EEPRO];
1786 static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1787 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1789 static int autodetect;
1792 /* For linux 2.1.xx */
1794 MODULE_AUTHOR("Pascal Dupuis and others");
1795 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1796 MODULE_LICENSE("GPL");
1798 static int num_params;
1799 module_param_array(io, int, &num_params, 0);
1800 module_param_array(irq, int, &num_params, 0);
1801 module_param_array(mem, int, &num_params, 0);
1802 module_param(autodetect, int, 0);
1803 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1804 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1805 MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1806 MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1811 struct net_device *dev;
1813 if (io[0] == -1 && autodetect == 0) {
1814 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1815 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1818 else if (autodetect) {
1819 /* if autodetect is set then we must force detection */
1820 for (i = 0; i < MAX_EEPRO; i++) {
1824 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1827 for (i = 0; io[i] != -1 && i < MAX_EEPRO; i++) {
1828 dev = alloc_etherdev(sizeof(struct eepro_local));
1832 dev->mem_end = mem[i];
1833 dev->base_addr = io[i];
1836 if (do_eepro_probe(dev) == 0) {
1837 if (register_netdev(dev) == 0) {
1838 dev_eepro[n_eepro++] = dev;
1841 release_region(dev->base_addr, EEPRO_IO_EXTENT);
1848 printk(KERN_INFO "%s", version);
1850 return n_eepro ? 0 : -ENODEV;
1854 cleanup_module(void)
1858 for (i=0; i<n_eepro; i++) {
1859 struct net_device *dev = dev_eepro[i];
1860 unregister_netdev(dev);
1861 release_region(dev->base_addr, EEPRO_IO_EXTENT);