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 0.13a in memory shortage, drop packets also in board
27 (Michael Westermann <mw@microdata-pos.de>, 07/30/2002)
28 0.13 irq sharing, rewrote probe function, fixed a nasty bug in
29 hardware_send_packet and a major cleanup (aris, 11/08/2001)
30 0.12d fixing a problem with single card detected as eight eth devices
31 fixing a problem with sudden drop in card performance
32 (chris (asdn@go2.pl), 10/29/2001)
33 0.12c fixing some problems with old cards (aris, 01/08/2001)
34 0.12b misc fixes (aris, 06/26/2000)
35 0.12a port of version 0.12a of 2.2.x kernels to 2.3.x
36 (aris (aris@conectiva.com.br), 05/19/2000)
37 0.11e some tweaks about multiple cards support (PdP, jul/aug 1999)
38 0.11d added __initdata, __init stuff; call spin_lock_init
39 in eepro_probe1. Replaced "eepro" by dev->name. Augmented
40 the code protected by spin_lock in interrupt routine
42 0.11c minor cleanup (PdP, RMC, 09/12/1998)
43 0.11b Pascal Dupuis (dupuis@lei.ucl.ac.be): works as a module
44 under 2.1.xx. Debug messages are flagged as KERN_DEBUG to
45 avoid console flooding. Added locking at critical parts. Now
46 the dawn thing is SMP safe.
47 0.11a Attempt to get 2.1.xx support up (RMC)
48 0.11 Brian Candler added support for multiple cards. Tested as
49 a module, no idea if it works when compiled into kernel.
51 0.10e Rick Bressler notified me that ifconfig up;ifconfig down fails
52 because the irq is lost somewhere. Fixed that by moving
53 request_irq and free_irq to eepro_open and eepro_close respectively.
54 0.10d Ugh! Now Wakeup works. Was seriously broken in my first attempt.
55 I'll need to find a way to specify an ioport other than
56 the default one in the PnP case. PnP definitively sucks.
57 And, yes, this is not the only reason.
58 0.10c PnP Wakeup Test for 595FX. uncomment #define PnPWakeup;
60 0.10b Should work now with (some) Pro/10+. At least for
61 me (and my two cards) it does. _No_ guarantee for
62 function with non-Pro/10+ cards! (don't have any)
65 0.10 Added support for the Etherexpress Pro/10+. The
66 IRQ map was changed significantly from the old
67 pro/10. The new interrupt map was provided by
68 Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu).
71 0.09 Fixed a race condition in the transmit algorithm,
72 which causes crashes under heavy load with fast
73 pentium computers. The performance should also
74 improve a bit. The size of RX buffer, and hence
75 TX buffer, can also be changed via lilo or insmod.
78 0.08 Implement 32-bit I/O for the 82595TX and 82595FX
79 based lan cards. Disable full-duplex mode if TPE
80 is not used. (BCH, 4/8/96)
82 0.07a Fix a stat report which counts every packet as a
83 heart-beat failure. (BCH, 6/3/95)
85 0.07 Modified to support all other 82595-based lan cards.
86 The IRQ vector of the EtherExpress Pro will be set
87 according to the value saved in the EEPROM. For other
88 cards, I will do autoirq_request() to grab the next
89 available interrupt vector. (BCH, 3/17/95)
91 0.06a,b Interim released. Minor changes in the comments and
92 print out format. (BCH, 3/9/95 and 3/14/95)
94 0.06 First stable release that I am comfortable with. (BCH,
97 0.05 Complete testing of multicast. (BCH, 2/23/95)
99 0.04 Adding multicast support. (BCH, 2/14/95)
101 0.03 First widely alpha release for public testing.
106 static const char version[] =
107 "eepro.c: v0.13 11/08/2001 aris@cathedrallabs.org\n";
109 #include <linux/module.h>
114 This driver wouldn't have been written without the availability
115 of the Crynwr's Lan595 driver source code. It helps me to
116 familiarize with the 82595 chipset while waiting for the Intel
117 documentation. I also learned how to detect the 82595 using
118 the packet driver's technique.
120 This driver is written by cutting and pasting the skeleton.c driver
121 provided by Donald Becker. I also borrowed the EEPROM routine from
122 Donald Becker's 82586 driver.
124 Datasheet for the Intel 82595 (including the TX and FX version). It
125 provides just enough info that the casual reader might think that it
126 documents the i82595.
128 The User Manual for the 82595. It provides a lot of the missing
133 #include <linux/kernel.h>
134 #include <linux/sched.h>
135 #include <linux/types.h>
136 #include <linux/fcntl.h>
137 #include <linux/interrupt.h>
138 #include <linux/ptrace.h>
139 #include <linux/ioport.h>
140 #include <linux/in.h>
141 #include <linux/slab.h>
142 #include <linux/string.h>
143 #include <asm/system.h>
144 #include <asm/bitops.h>
147 #include <linux/errno.h>
149 #include <linux/netdevice.h>
150 #include <linux/etherdevice.h>
151 #include <linux/skbuff.h>
152 #include <linux/spinlock.h>
153 #include <linux/init.h>
154 #include <linux/delay.h>
156 #define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb) )
157 /* I had reports of looong delays with SLOW_DOWN defined as udelay(2) */
158 #define SLOW_DOWN inb(0x80)
160 #define compat_init_data __initdata
163 /* First, a few definitions that the brave might change. */
164 /* A zero-terminated list of I/O addresses to be probed. */
165 static unsigned int eepro_portlist[] compat_init_data =
166 { 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0};
167 /* note: 0x300 is default, the 595FX supports ALL IO Ports
168 from 0x000 to 0x3F0, some of which are reserved in PCs */
170 /* To try the (not-really PnP Wakeup: */
175 /* use 0 for production, 1 for verification, >2 for debug */
179 static unsigned int net_debug = NET_DEBUG;
181 /* The number of low I/O ports used by the ethercard. */
182 #define EEPRO_IO_EXTENT 16
184 /* Different 82595 chips */
188 #define LAN595FX_10ISA 3
190 /* Information that need to be kept for each board. */
192 struct net_device_stats stats;
194 unsigned tx_start; /* start of the transmit chain */
195 int tx_last; /* pointer to last packet in the transmit chain */
196 unsigned tx_end; /* end of the transmit chain (plus 1) */
197 int eepro; /* 1 for the EtherExpress Pro/10,
198 2 for the EtherExpress Pro/10+,
199 3 for the EtherExpress 10 (blue cards),
200 0 for other 82595-based lan cards. */
201 int version; /* a flag to indicate if this is a TX or FX
202 version of the 82595 chip. */
205 spinlock_t lock; /* Serializing lock */
207 unsigned rcv_ram; /* pre-calculated space for rx */
208 unsigned xmt_ram; /* pre-calculated space for tx */
209 unsigned char xmt_bar;
210 unsigned char xmt_lower_limit_reg;
211 unsigned char xmt_upper_limit_reg;
212 short xmt_lower_limit;
213 short xmt_upper_limit;
214 short rcv_lower_limit;
215 short rcv_upper_limit;
216 unsigned char eeprom_reg;
219 /* The station (ethernet) address prefix, used for IDing the board. */
220 #define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
221 #define SA_ADDR1 0xaa
222 #define SA_ADDR2 0x00
224 #define GetBit(x,y) ((x & (1<<y))>>y)
227 #define ee_PnP 0 /* Plug 'n Play enable bit */
228 #define ee_Word1 1 /* Word 1? */
229 #define ee_BusWidth 2 /* 8/16 bit */
230 #define ee_FlashAddr 3 /* Flash Address */
231 #define ee_FlashMask 0x7 /* Mask */
232 #define ee_AutoIO 6 /* */
233 #define ee_reserved0 7 /* =0! */
234 #define ee_Flash 8 /* Flash there? */
235 #define ee_AutoNeg 9 /* Auto Negotiation enabled? */
236 #define ee_IO0 10 /* IO Address LSB */
237 #define ee_IO0Mask 0x /*...*/
238 #define ee_IO1 15 /* IO MSB */
241 #define ee_IntSel 0 /* Interrupt */
242 #define ee_IntMask 0x7
243 #define ee_LI 3 /* Link Integrity 0= enabled */
244 #define ee_PC 4 /* Polarity Correction 0= enabled */
245 #define ee_TPE_AUI 5 /* PortSelection 1=TPE */
246 #define ee_Jabber 6 /* Jabber prevention 0= enabled */
247 #define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */
248 #define ee_SMOUT 8 /* SMout Pin Control 0= Input */
249 #define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */
250 #define ee_reserved1 10 /* .. 12 =0! */
251 #define ee_AltReady 13 /* Alternate Ready, 0=normal */
252 #define ee_reserved2 14 /* =0! */
256 #define ee_IA5 0 /*bit start for individual Addr Byte 5 */
257 #define ee_IA4 8 /*bit start for individual Addr Byte 5 */
258 #define ee_IA3 0 /*bit start for individual Addr Byte 5 */
259 #define ee_IA2 8 /*bit start for individual Addr Byte 5 */
260 #define ee_IA1 0 /*bit start for individual Addr Byte 5 */
261 #define ee_IA0 8 /*bit start for individual Addr Byte 5 */
264 #define ee_BNC_TPE 0 /* 0=TPE */
265 #define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */
266 #define ee_BootTypeMask 0x3
267 #define ee_NumConn 3 /* Number of Connections 0= One or Two */
268 #define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */
272 #define ee_PowerMgt 10 /* 0= disabled */
273 #define ee_CP 13 /* Concurrent Processing */
274 #define ee_CPMask 0x7
277 #define ee_Stepping 0 /* Stepping info */
278 #define ee_StepMask 0x0F
279 #define ee_BoardID 4 /* Manucaturer Board ID, reserved */
280 #define ee_BoardMask 0x0FFF
283 #define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */
284 #define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */
287 #define ee_SIZE 0x40 /* total EEprom Size */
288 #define ee_Checksum 0xBABA /* initial and final value for adding checksum */
291 /* Card identification via EEprom: */
292 #define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */
293 #define ee_addr_id 0x11 /* Word offset for Card ID */
294 #define ee_addr_SN 0x12 /* Serial Number */
295 #define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */
298 #define ee_vendor_intel0 0x25 /* Vendor ID Intel */
299 #define ee_vendor_intel1 0xD4
300 #define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */
301 #define ee_id_eepro10p1 0x31
303 #define TX_TIMEOUT 40
305 /* Index to functions, as function prototypes. */
307 extern int eepro_probe(struct net_device *dev);
309 static int eepro_probe1(struct net_device *dev, short ioaddr);
310 static int eepro_open(struct net_device *dev);
311 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev);
312 static void eepro_interrupt(int irq, void *dev_id, struct pt_regs *regs);
313 static void eepro_rx(struct net_device *dev);
314 static void eepro_transmit_interrupt(struct net_device *dev);
315 static int eepro_close(struct net_device *dev);
316 static struct net_device_stats *eepro_get_stats(struct net_device *dev);
317 static void set_multicast_list(struct net_device *dev);
318 static void eepro_tx_timeout (struct net_device *dev);
320 static int read_eeprom(int ioaddr, int location, struct net_device *dev);
321 static int hardware_send_packet(struct net_device *dev, void *buf, short length);
322 static int eepro_grab_irq(struct net_device *dev);
325 Details of the i82595.
327 You will need either the datasheet or the user manual to understand what
328 is going on here. The 82595 is very different from the 82586, 82593.
330 The receive algorithm in eepro_rx() is just an implementation of the
331 RCV ring structure that the Intel 82595 imposes at the hardware level.
332 The receive buffer is set at 24K, and the transmit buffer is 8K. I
333 am assuming that the total buffer memory is 32K, which is true for the
334 Intel EtherExpress Pro/10. If it is less than that on a generic card,
335 the driver will be broken.
337 The transmit algorithm in the hardware_send_packet() is similar to the
338 one in the eepro_rx(). The transmit buffer is a ring linked list.
339 I just queue the next available packet to the end of the list. In my
340 system, the 82595 is so fast that the list seems to always contain a
341 single packet. In other systems with faster computers and more congested
342 network traffics, the ring linked list should improve performance by
343 allowing up to 8K worth of packets to be queued.
345 The sizes of the receive and transmit buffers can now be changed via lilo
346 or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
347 where rx-buffer is in KB unit. Modules uses the parameter mem which is
348 also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
349 The receive buffer has to be more than 3K or less than 29K. Otherwise,
350 it is reset to the default of 24K, and, hence, 8K for the trasnmit
351 buffer (transmit-buffer = 32K - receive-buffer).
354 #define RAM_SIZE 0x8000
357 #define RCV_DEFAULT_RAM 0x6000
360 #define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM)
362 #define XMT_START_PRO RCV_DEFAULT_RAM
363 #define XMT_START_10 0x0000
364 #define RCV_START_PRO 0x0000
365 #define RCV_START_10 XMT_DEFAULT_RAM
367 #define RCV_DONE 0x0008
369 #define RX_ERROR 0x0d81
371 #define TX_DONE_BIT 0x0080
373 #define CHAIN_BIT 0x8000
374 #define XMT_STATUS 0x02
375 #define XMT_CHAIN 0x04
376 #define XMT_COUNT 0x06
378 #define BANK0_SELECT 0x00
379 #define BANK1_SELECT 0x40
380 #define BANK2_SELECT 0x80
382 /* Bank 0 registers */
383 #define COMMAND_REG 0x00 /* Register 0 */
384 #define MC_SETUP 0x03
386 #define DIAGNOSE_CMD 0x07
387 #define RCV_ENABLE_CMD 0x08
388 #define RCV_DISABLE_CMD 0x0a
389 #define STOP_RCV_CMD 0x0b
390 #define RESET_CMD 0x0e
391 #define POWER_DOWN_CMD 0x18
392 #define RESUME_XMT_CMD 0x1c
393 #define SEL_RESET_CMD 0x1e
394 #define STATUS_REG 0x01 /* Register 1 */
397 #define EXEC_STATUS 0x30
398 #define ID_REG 0x02 /* Register 2 */
399 #define R_ROBIN_BITS 0xc0 /* round robin counter */
400 #define ID_REG_MASK 0x2c
401 #define ID_REG_SIG 0x24
402 #define AUTO_ENABLE 0x10
403 #define INT_MASK_REG 0x03 /* Register 3 */
404 #define RX_STOP_MASK 0x01
407 #define EXEC_MASK 0x08
408 #define ALL_MASK 0x0f
409 #define IO_32_BIT 0x10
410 #define RCV_BAR 0x04 /* The following are word (16-bit) registers */
411 #define RCV_STOP 0x06
413 #define XMT_BAR_PRO 0x0a
414 #define XMT_BAR_10 0x0b
416 #define HOST_ADDRESS_REG 0x0c
418 #define IO_PORT_32_BIT 0x0c
420 /* Bank 1 registers */
422 #define WORD_WIDTH 0x02
423 #define INT_ENABLE 0x80
424 #define INT_NO_REG 0x02
425 #define RCV_LOWER_LIMIT_REG 0x08
426 #define RCV_UPPER_LIMIT_REG 0x09
428 #define XMT_LOWER_LIMIT_REG_PRO 0x0a
429 #define XMT_UPPER_LIMIT_REG_PRO 0x0b
430 #define XMT_LOWER_LIMIT_REG_10 0x0b
431 #define XMT_UPPER_LIMIT_REG_10 0x0a
433 /* Bank 2 registers */
434 #define XMT_Chain_Int 0x20 /* Interrupt at the end of the transmit chain */
435 #define XMT_Chain_ErrStop 0x40 /* Interrupt at the end of the chain even if there are errors */
436 #define RCV_Discard_BadFrame 0x80 /* Throw bad frames away, and continue to receive others */
438 #define PRMSC_Mode 0x01
439 #define Multi_IA 0x20
445 #define A_N_ENABLE 0x02
447 #define I_ADD_REG0 0x04
448 #define I_ADD_REG1 0x05
449 #define I_ADD_REG2 0x06
450 #define I_ADD_REG3 0x07
451 #define I_ADD_REG4 0x08
452 #define I_ADD_REG5 0x09
454 #define EEPROM_REG_PRO 0x0a
455 #define EEPROM_REG_10 0x0b
462 /* do a full reset */
463 #define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr)
465 /* do a nice reset */
466 #define eepro_sel_reset(ioaddr) { \
467 outb(SEL_RESET_CMD, ioaddr); \
472 /* disable all interrupts */
473 #define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG)
475 /* clear all interrupts */
476 #define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
479 #define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \
480 ioaddr + INT_MASK_REG)
482 /* enable exec event interrupt */
483 #define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG)
486 #define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
489 #define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
492 #define eepro_sw2bank0(ioaddr) outb(BANK0_SELECT, ioaddr)
493 #define eepro_sw2bank1(ioaddr) outb(BANK1_SELECT, ioaddr)
494 #define eepro_sw2bank2(ioaddr) outb(BANK2_SELECT, ioaddr)
496 /* enable interrupt line */
497 #define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\
500 /* disable interrupt line */
501 #define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \
504 /* set diagnose flag */
505 #define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr)
508 #define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG)
511 #define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG)
513 /* a complete sel reset */
514 #define eepro_complete_selreset(ioaddr) { \
515 lp->stats.tx_errors++;\
516 eepro_sel_reset(ioaddr);\
518 lp->xmt_lower_limit;\
519 lp->tx_start = lp->tx_end;\
521 dev->trans_start = jiffies;\
522 netif_wake_queue(dev);\
523 eepro_en_rx(ioaddr);\
526 /* Check for a network adaptor of this type, and return '0' if one exists.
527 If dev->base_addr == 0, probe all likely locations.
528 If dev->base_addr == 1, always return failure.
529 If dev->base_addr == 2, allocate space for the device and return success
530 (detachable devices only).
532 int __init eepro_probe(struct net_device *dev)
535 int base_addr = dev->base_addr;
537 SET_MODULE_OWNER(dev);
540 /* XXXX for multiple cards should this only be run once? */
543 #define WakeupPort 0x279
544 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
545 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
546 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
547 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
550 unsigned short int WS[32]=WakeupSeq;
552 if (check_region(WakeupPort, 2)==0) {
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]);
563 } else printk(KERN_WARNING "Checkregion Failed!\n");
567 if (base_addr > 0x1ff) /* Check a single specified location. */
568 return eepro_probe1(dev, base_addr);
570 else if (base_addr != 0) /* Don't probe at all. */
574 for (i = 0; eepro_portlist[i]; i++) {
575 int ioaddr = eepro_portlist[i];
577 if (check_region(ioaddr, EEPRO_IO_EXTENT))
579 if (eepro_probe1(dev, ioaddr) == 0)
586 static void __init printEEPROMInfo(short ioaddr, struct net_device *dev)
591 for (i=0, j=ee_Checksum; i<ee_SIZE; i++)
592 j+=read_eeprom(ioaddr,i,dev);
593 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
595 Word=read_eeprom(ioaddr, 0, dev);
596 printk(KERN_DEBUG "Word0:\n");
597 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
598 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
599 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
600 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
603 Word=read_eeprom(ioaddr, 1, dev);
604 printk(KERN_DEBUG "Word1:\n");
605 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
606 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
607 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
608 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
609 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
610 printk(KERN_DEBUG " AutoPort: %d\n", GetBit(!Word,ee_Jabber));
611 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
614 Word=read_eeprom(ioaddr, 5, dev);
615 printk(KERN_DEBUG "Word5:\n");
616 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
617 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
618 printk(KERN_DEBUG " Has ");
619 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
620 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
621 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
622 printk(KERN_DEBUG "port(s) \n");
624 Word=read_eeprom(ioaddr, 6, dev);
625 printk(KERN_DEBUG "Word6:\n");
626 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
627 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
629 Word=read_eeprom(ioaddr, 7, dev);
630 printk(KERN_DEBUG "Word7:\n");
631 printk(KERN_DEBUG " INT to IRQ:\n");
633 for (i=0, j=0; i<15; i++)
634 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
636 printk(KERN_DEBUG "\n");
639 /* function to recalculate the limits of buffer based on rcv_ram */
640 static void eepro_recalc (struct net_device *dev)
642 struct eepro_local * lp;
645 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
647 if (lp->eepro == LAN595FX_10ISA) {
648 lp->xmt_lower_limit = XMT_START_10;
649 lp->xmt_upper_limit = (lp->xmt_ram - 2);
650 lp->rcv_lower_limit = lp->xmt_ram;
651 lp->rcv_upper_limit = (RAM_SIZE - 2);
654 lp->rcv_lower_limit = RCV_START_PRO;
655 lp->rcv_upper_limit = (lp->rcv_ram - 2);
656 lp->xmt_lower_limit = lp->rcv_ram;
657 lp->xmt_upper_limit = (RAM_SIZE - 2);
661 /* prints boot-time info */
662 static void eepro_print_info (struct net_device *dev)
664 struct eepro_local * lp = dev->priv;
666 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
668 i = inb(dev->base_addr + ID_REG);
669 printk(KERN_DEBUG " id: %#x ",i);
670 printk(" io: %#x ", (unsigned)dev->base_addr);
674 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
675 dev->name, (unsigned)dev->base_addr);
678 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
679 dev->name, (unsigned)dev->base_addr);
682 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
683 dev->name, (unsigned)dev->base_addr);
686 printk("%s: Intel 82595-based lan card at %#x,",
687 dev->name, (unsigned)dev->base_addr);
690 for (i=0; i < 6; i++)
691 printk("%c%02x", i ? ':' : ' ', dev->dev_addr[i]);
694 printk(KERN_DEBUG ", %dK RCV buffer",
695 (int)(lp->rcv_ram)/1024);
698 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
700 printk(", %s.\n", ifmap[dev->if_port]);
703 i = read_eeprom(dev->base_addr, 5, dev);
704 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
705 printk(KERN_DEBUG "%s: Concurrent Processing is "
706 "enabled but not used!\n", dev->name);
709 /* Check the station address for the manufacturer's code */
711 printEEPROMInfo(dev->base_addr, dev);
714 /* This is the real probe routine. Linux has a history of friendly device
715 probes on the ISA bus. A good device probe avoids doing writes, and
716 verifies that the correct device exists and functions. */
718 static int __init eepro_probe1(struct net_device *dev, short ioaddr)
720 unsigned short station_addr[6], id, counter;
721 int i, j, irqMask, retval = 0;
722 struct eepro_local *lp;
723 enum iftype { AUI=0, BNC=1, TPE=2 };
725 /* Now, we are going to check for the signature of the
726 ID_REG (register 2 of bank 0) */
728 id=inb(ioaddr + ID_REG);
730 if (((id) & ID_REG_MASK) != ID_REG_SIG) {
735 /* We seem to have the 82595 signature, let's
736 play with its counter (last 2 bits of
737 register 2 of bank 0) to be sure. */
739 counter = (id & R_ROBIN_BITS);
741 if (((id=inb(ioaddr+ID_REG)) & R_ROBIN_BITS)!=(counter + 0x40)) {
746 /* Initialize the device structure */
747 dev->priv = kmalloc(sizeof(struct eepro_local), GFP_KERNEL);
753 memset(dev->priv, 0, sizeof(struct eepro_local));
755 lp = (struct eepro_local *)dev->priv;
759 lp->xmt_bar = XMT_BAR_PRO;
760 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
761 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
762 lp->eeprom_reg = EEPROM_REG_PRO;
764 /* Now, get the ethernet hardware address from
766 station_addr[0] = read_eeprom(ioaddr, 2, dev);
768 /* FIXME - find another way to know that we've found
771 if (station_addr[0] == 0x0000 ||
772 station_addr[0] == 0xffff) {
773 lp->eepro = LAN595FX_10ISA;
774 lp->eeprom_reg = EEPROM_REG_10;
775 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
776 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
777 lp->xmt_bar = XMT_BAR_10;
778 station_addr[0] = read_eeprom(ioaddr, 2, dev);
780 station_addr[1] = read_eeprom(ioaddr, 3, dev);
781 station_addr[2] = read_eeprom(ioaddr, 4, dev);
784 if (read_eeprom(ioaddr,7,dev)== ee_FX_INT2IRQ)
786 else if (station_addr[2] == SA_ADDR1)
790 /* Fill in the 'dev' fields. */
791 dev->base_addr = ioaddr;
793 for (i=0; i < 6; i++)
794 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
796 /* RX buffer must be more than 3K and less than 29K */
797 if (dev->mem_end < 3072 || dev->mem_end > 29696)
798 lp->rcv_ram = RCV_DEFAULT_RAM;
800 /* calculate {xmt,rcv}_{lower,upper}_limit */
803 if (GetBit( read_eeprom(ioaddr, 5, dev),ee_BNC_TPE))
808 if ((dev->irq < 2) && (lp->eepro!=0)) {
809 i = read_eeprom(ioaddr, 1, dev);
810 irqMask = read_eeprom(ioaddr, 7, dev);
811 i &= 0x07; /* Mask off INT number */
813 for (j=0; ((j<16) && (i>=0)); j++) {
814 if ((irqMask & (1<<j))!=0) {
817 break; /* found bit corresponding to irq */
819 i--; /* count bits set in irqMask */
823 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
828 else if (dev->irq==2) dev->irq = 9;
831 /* Grab the region so we can find another board if autoIRQ fails. */
832 if (!request_region(ioaddr, EEPRO_IO_EXTENT, dev->name)) {
833 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n", ioaddr);
836 ((struct eepro_local *)dev->priv)->lock = SPIN_LOCK_UNLOCKED;
838 dev->open = eepro_open;
839 dev->stop = eepro_close;
840 dev->hard_start_xmit = eepro_send_packet;
841 dev->get_stats = eepro_get_stats;
842 dev->set_multicast_list = &set_multicast_list;
843 dev->tx_timeout = eepro_tx_timeout;
844 dev->watchdog_timeo = TX_TIMEOUT;
846 /* Fill in the fields of the device structure with
847 ethernet generic values */
850 /* print boot time info */
851 eepro_print_info(dev);
864 /* Open/initialize the board. This is called (in the current kernel)
865 sometime after booting when the 'ifconfig' program is run.
867 This routine should set everything up anew at each open, even
868 registers that "should" only need to be set once at boot, so that
869 there is non-reboot way to recover if something goes wrong.
872 static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
873 static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
874 static int eepro_grab_irq(struct net_device *dev)
876 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
877 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
879 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
881 /* Enable the interrupt line. */
882 eepro_en_intline(ioaddr);
884 /* be CAREFUL, BANK 0 now */
885 eepro_sw2bank0(ioaddr);
887 /* clear all interrupts */
888 eepro_clear_int(ioaddr);
890 /* Let EXEC event to interrupt */
891 eepro_en_intexec(ioaddr);
894 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
896 temp_reg = inb(ioaddr + INT_NO_REG);
897 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
899 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
901 if (request_irq (*irqp, NULL, SA_SHIRQ, "bogus", dev) != EBUSY) {
902 /* Twinkle the interrupt, and check if it's seen */
905 eepro_diag(ioaddr); /* RESET the 82595 */
907 if (*irqp == autoirq_report(2)) /* It's a good IRQ line */
910 /* clear all interrupts */
911 eepro_clear_int(ioaddr);
915 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
917 /* Disable the physical interrupt line. */
918 eepro_dis_intline(ioaddr);
920 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
922 /* Mask all the interrupts. */
923 eepro_dis_int(ioaddr);
925 /* clear all interrupts */
926 eepro_clear_int(ioaddr);
931 static int eepro_open(struct net_device *dev)
933 unsigned short temp_reg, old8, old9;
935 int i, ioaddr = dev->base_addr;
936 struct eepro_local *lp = (struct eepro_local *)dev->priv;
939 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
941 irqMask = read_eeprom(ioaddr,7,dev);
943 if (lp->eepro == LAN595FX_10ISA) {
944 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
946 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
948 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
949 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
952 else if ((dev->dev_addr[0] == SA_ADDR0 &&
953 dev->dev_addr[1] == SA_ADDR1 &&
954 dev->dev_addr[2] == SA_ADDR2))
957 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
958 } /* Yes, an Intel EtherExpress Pro/10 */
960 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
962 /* Get the interrupt vector for the 82595 */
963 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
964 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
968 if (request_irq(dev->irq , &eepro_interrupt, 0, dev->name, dev)) {
969 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
974 if (((irq2dev_map[dev->irq] != 0)
975 || (irq2dev_map[dev->irq] = dev) == 0) &&
976 (irq2dev_map[dev->irq]!=dev)) {
977 /* printk("%s: IRQ map wrong\n", dev->name); */
978 free_irq(dev->irq, dev);
983 /* Initialize the 82595. */
985 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
986 temp_reg = inb(ioaddr + lp->eeprom_reg);
988 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
991 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
993 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
994 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
995 for (i=0; i < 6; i++)
996 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
998 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
999 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1000 | RCV_Discard_BadFrame, ioaddr + REG1);
1002 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1003 outb(temp_reg | 0x14, ioaddr + REG2);
1005 temp_reg = inb(ioaddr + REG3);
1006 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1008 /* Set the receiving mode */
1009 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1011 /* Set the interrupt vector */
1012 temp_reg = inb(ioaddr + INT_NO_REG);
1013 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1014 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1015 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1018 temp_reg = inb(ioaddr + INT_NO_REG);
1019 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1020 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1021 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1024 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1027 /* Initialize the RCV and XMT upper and lower limits */
1028 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1029 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
1030 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1031 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1033 /* Enable the interrupt line. */
1034 eepro_en_intline(ioaddr);
1036 /* Switch back to Bank 0 */
1037 eepro_sw2bank0(ioaddr);
1039 /* Let RX and TX events to interrupt */
1040 eepro_en_int(ioaddr);
1042 /* clear all interrupts */
1043 eepro_clear_int(ioaddr);
1045 /* Initialize RCV */
1046 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
1047 lp->rx_start = lp->rcv_lower_limit;
1048 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
1050 /* Initialize XMT */
1051 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
1052 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1055 /* Check for the i82595TX and i82595FX */
1056 old8 = inb(ioaddr + 8);
1057 outb(~old8, ioaddr + 8);
1059 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1061 printk(KERN_DEBUG "i82595 detected!\n");
1062 lp->version = LAN595;
1065 lp->version = LAN595TX;
1066 outb(old8, ioaddr + 8);
1067 old9 = inb(ioaddr + 9);
1069 if (irqMask==ee_FX_INT2IRQ) {
1070 enum iftype { AUI=0, BNC=1, TPE=2 };
1072 if (net_debug > 3) {
1073 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1074 printk(KERN_DEBUG "i82595FX detected!\n");
1076 lp->version = LAN595FX;
1077 outb(old9, ioaddr + 9);
1078 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1079 problem of using Pentiums and
1081 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1082 temp_reg = inb(ioaddr + REG13);
1083 /* disable the full duplex mode since it is not
1084 applicable with the 10Base2 cable. */
1085 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1086 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1089 else if (net_debug > 3) {
1090 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1091 printk(KERN_DEBUG "i82595TX detected!\n");
1095 eepro_sel_reset(ioaddr);
1097 netif_start_queue(dev);
1100 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1103 eepro_en_rx(ioaddr);
1110 static void eepro_tx_timeout (struct net_device *dev)
1112 struct eepro_local *lp = (struct eepro_local *) dev->priv;
1113 int ioaddr = dev->base_addr;
1115 /* if (net_debug > 1) */
1116 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1117 "network cable problem");
1118 /* This is not a duplicate. One message for the console,
1119 one for the the log file */
1120 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1121 "network cable problem");
1122 eepro_complete_selreset(ioaddr);
1126 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1128 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1129 unsigned long flags;
1130 int ioaddr = dev->base_addr;
1131 short length = skb->len;
1134 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1136 if(length < ETH_ZLEN)
1138 skb = skb_padto(skb, ETH_ZLEN);
1143 netif_stop_queue (dev);
1145 eepro_dis_int(ioaddr);
1146 spin_lock_irqsave(&lp->lock, flags);
1149 unsigned char *buf = skb->data;
1151 if (hardware_send_packet(dev, buf, length))
1152 /* we won't wake queue here because we're out of space */
1153 lp->stats.tx_dropped++;
1155 lp->stats.tx_bytes+=skb->len;
1156 dev->trans_start = jiffies;
1157 netif_wake_queue(dev);
1162 dev_kfree_skb (skb);
1164 /* You might need to clean up and record Tx statistics here. */
1165 /* lp->stats.tx_aborted_errors++; */
1168 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1170 eepro_en_int(ioaddr);
1171 spin_unlock_irqrestore(&lp->lock, flags);
1177 /* The typical workload of the driver:
1178 Handle the network interface interrupts. */
1181 eepro_interrupt(int irq, void *dev_id, struct pt_regs * regs)
1183 struct net_device *dev = (struct net_device *)dev_id;
1184 /* (struct net_device *)(irq2dev_map[irq]);*/
1185 struct eepro_local *lp;
1186 int ioaddr, status, boguscount = 20;
1189 printk (KERN_ERR "eepro_interrupt(): irq %d for unknown device.\\n", irq);
1193 lp = (struct eepro_local *)dev->priv;
1195 spin_lock(&lp->lock);
1198 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1200 ioaddr = dev->base_addr;
1202 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);
1238 static int eepro_close(struct net_device *dev)
1240 struct eepro_local *lp = (struct eepro_local *)dev->priv;
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);
1272 irq2dev_map[dev->irq] = 0;
1275 /* Update the statistics here. What statistics? */
1282 /* Get the current statistics. This may be called with the card open or
1284 static struct net_device_stats *
1285 eepro_get_stats(struct net_device *dev)
1287 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1292 /* Set or clear the multicast filter for this adaptor.
1295 set_multicast_list(struct net_device *dev)
1297 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1298 short ioaddr = dev->base_addr;
1299 unsigned short mode;
1300 struct dev_mc_list *dmi=dev->mc_list;
1302 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1305 * We must make the kernel realise we had to move
1306 * into promisc mode or we start all out war on
1307 * the cable. If it was a promisc request the
1308 * flag is already set. If not we assert it.
1310 dev->flags|=IFF_PROMISC;
1312 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1313 mode = inb(ioaddr + REG2);
1314 outb(mode | PRMSC_Mode, ioaddr + REG2);
1315 mode = inb(ioaddr + REG3);
1316 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1317 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1318 printk(KERN_INFO "%s: promiscuous mode enabled.\n", dev->name);
1321 else if (dev->mc_count==0 )
1323 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1324 mode = inb(ioaddr + REG2);
1325 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1326 mode = inb(ioaddr + REG3);
1327 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1328 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1333 unsigned short status, *eaddrs;
1334 int i, boguscount = 0;
1336 /* Disable RX and TX interrupts. Necessary to avoid
1337 corruption of the HOST_ADDRESS_REG by interrupt
1338 service routines. */
1339 eepro_dis_int(ioaddr);
1341 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1342 mode = inb(ioaddr + REG2);
1343 outb(mode | Multi_IA, ioaddr + REG2);
1344 mode = inb(ioaddr + REG3);
1345 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1346 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1347 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1348 outw(MC_SETUP, ioaddr + IO_PORT);
1349 outw(0, ioaddr + IO_PORT);
1350 outw(0, ioaddr + IO_PORT);
1351 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1353 for (i = 0; i < dev->mc_count; i++)
1355 eaddrs=(unsigned short *)dmi->dmi_addr;
1357 outw(*eaddrs++, ioaddr + IO_PORT);
1358 outw(*eaddrs++, ioaddr + IO_PORT);
1359 outw(*eaddrs++, ioaddr + IO_PORT);
1362 eaddrs = (unsigned short *) dev->dev_addr;
1363 outw(eaddrs[0], ioaddr + IO_PORT);
1364 outw(eaddrs[1], ioaddr + IO_PORT);
1365 outw(eaddrs[2], ioaddr + IO_PORT);
1366 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1367 outb(MC_SETUP, ioaddr);
1369 /* Update the transmit queue */
1370 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1372 if (lp->tx_start != lp->tx_end)
1374 /* update the next address and the chain bit in the
1376 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1377 outw(i, ioaddr + IO_PORT);
1378 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1379 status = inw(ioaddr + IO_PORT);
1380 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1384 lp->tx_start = lp->tx_end = i ;
1387 /* Acknowledge that the MC setup is done */
1388 do { /* We should be doing this in the eepro_interrupt()! */
1391 if (inb(ioaddr + STATUS_REG) & 0x08)
1394 outb(0x08, ioaddr + STATUS_REG);
1396 if (i & 0x20) { /* command ABORTed */
1397 printk(KERN_NOTICE "%s: multicast setup failed.\n",
1400 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1401 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1402 dev->name, dev->mc_count,
1403 dev->mc_count > 1 ? "es":"");
1407 } while (++boguscount < 100);
1409 /* Re-enable RX and TX interrupts */
1410 eepro_en_int(ioaddr);
1412 if (lp->eepro == LAN595FX_10ISA) {
1413 eepro_complete_selreset(ioaddr);
1416 eepro_en_rx(ioaddr);
1419 /* The horrible routine to read a word from the serial EEPROM. */
1420 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1422 /* The delay between EEPROM clock transitions. */
1423 #define eeprom_delay() { udelay(40); }
1424 #define EE_READ_CMD (6 << 6)
1427 read_eeprom(int ioaddr, int location, struct net_device *dev)
1430 unsigned short retval = 0;
1431 struct eepro_local *lp = dev->priv;
1432 short ee_addr = ioaddr + lp->eeprom_reg;
1433 int read_cmd = location | EE_READ_CMD;
1434 short ctrl_val = EECS ;
1436 /* XXXX - black magic */
1437 eepro_sw2bank1(ioaddr);
1438 outb(0x00, ioaddr + STATUS_REG);
1439 /* XXXX - black magic */
1441 eepro_sw2bank2(ioaddr);
1442 outb(ctrl_val, ee_addr);
1444 /* Shift the read command bits out. */
1445 for (i = 8; i >= 0; i--) {
1446 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1448 outb(outval, ee_addr);
1449 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1451 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1454 outb(ctrl_val, ee_addr);
1456 for (i = 16; i > 0; i--) {
1457 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1458 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1459 outb(ctrl_val, ee_addr); eeprom_delay();
1462 /* Terminate the EEPROM access. */
1464 outb(ctrl_val | EESK, ee_addr);
1466 outb(ctrl_val, ee_addr);
1468 eepro_sw2bank0(ioaddr);
1473 hardware_send_packet(struct net_device *dev, void *buf, short length)
1475 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1476 short ioaddr = dev->base_addr;
1477 unsigned status, tx_available, last, end;
1480 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1482 /* determine how much of the transmit buffer space is available */
1483 if (lp->tx_end > lp->tx_start)
1484 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1485 else if (lp->tx_end < lp->tx_start)
1486 tx_available = lp->tx_start - lp->tx_end;
1487 else tx_available = lp->xmt_ram;
1489 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1490 /* No space available ??? */
1495 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1497 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
1498 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
1499 /* Arrrr!!!, must keep the xmt header together,
1500 several days were lost to chase this one down. */
1501 last = lp->xmt_lower_limit;
1502 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1504 else end = lp->xmt_lower_limit + (end -
1505 lp->xmt_upper_limit + 2);
1508 outw(last, ioaddr + HOST_ADDRESS_REG);
1509 outw(XMT_CMD, ioaddr + IO_PORT);
1510 outw(0, ioaddr + IO_PORT);
1511 outw(end, ioaddr + IO_PORT);
1512 outw(length, ioaddr + IO_PORT);
1514 if (lp->version == LAN595)
1515 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1516 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1517 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1518 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1519 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1520 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1523 /* A dummy read to flush the DRAM write pipeline */
1524 status = inw(ioaddr + IO_PORT);
1526 if (lp->tx_start == lp->tx_end) {
1527 outw(last, ioaddr + lp->xmt_bar);
1528 outb(XMT_CMD, ioaddr);
1529 lp->tx_start = last; /* I don't like to change tx_start here */
1532 /* update the next address and the chain bit in the
1535 if (lp->tx_end != last) {
1536 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1537 outw(last, ioaddr + IO_PORT);
1540 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1541 status = inw(ioaddr + IO_PORT);
1542 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1544 /* Continue the transmit command */
1545 outb(RESUME_XMT_CMD, ioaddr);
1552 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1558 eepro_rx(struct net_device *dev)
1560 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1561 short ioaddr = dev->base_addr;
1562 short boguscount = 20;
1563 short rcv_car = lp->rx_start;
1564 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1567 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1569 /* Set the read pointer to the start of the RCV */
1570 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1572 rcv_event = inw(ioaddr + IO_PORT);
1574 while (rcv_event == RCV_DONE) {
1576 rcv_status = inw(ioaddr + IO_PORT);
1577 rcv_next_frame = inw(ioaddr + IO_PORT);
1578 rcv_size = inw(ioaddr + IO_PORT);
1580 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1582 /* Malloc up new buffer. */
1583 struct sk_buff *skb;
1585 lp->stats.rx_bytes+=rcv_size;
1587 skb = dev_alloc_skb(rcv_size+5);
1589 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
1590 lp->stats.rx_dropped++;
1591 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1592 lp->rx_start = rcv_next_frame;
1593 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1600 if (lp->version == LAN595)
1601 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1602 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1603 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1604 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1605 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1606 (rcv_size + 3) >> 2);
1607 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1610 skb->protocol = eth_type_trans(skb,dev);
1612 dev->last_rx = jiffies;
1613 lp->stats.rx_packets++;
1616 else { /* Not sure will ever reach here,
1617 I set the 595 to discard bad received frames */
1618 lp->stats.rx_errors++;
1620 if (rcv_status & 0x0100)
1621 lp->stats.rx_over_errors++;
1623 else if (rcv_status & 0x0400)
1624 lp->stats.rx_frame_errors++;
1626 else if (rcv_status & 0x0800)
1627 lp->stats.rx_crc_errors++;
1629 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1630 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1633 if (rcv_status & 0x1000)
1634 lp->stats.rx_length_errors++;
1636 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1637 lp->rx_start = rcv_next_frame;
1639 if (--boguscount == 0)
1642 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1643 rcv_event = inw(ioaddr + IO_PORT);
1647 rcv_car = lp->rcv_upper_limit | 0xff;
1649 outw(rcv_car - 1, ioaddr + RCV_STOP);
1652 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1656 eepro_transmit_interrupt(struct net_device *dev)
1658 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1659 short ioaddr = dev->base_addr;
1660 short boguscount = 25;
1663 while ((lp->tx_start != lp->tx_end) && boguscount--) {
1665 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1666 xmt_status = inw(ioaddr+IO_PORT);
1668 if (!(xmt_status & TX_DONE_BIT))
1671 xmt_status = inw(ioaddr+IO_PORT);
1672 lp->tx_start = inw(ioaddr+IO_PORT);
1674 netif_wake_queue (dev);
1676 if (xmt_status & TX_OK)
1677 lp->stats.tx_packets++;
1679 lp->stats.tx_errors++;
1680 if (xmt_status & 0x0400) {
1681 lp->stats.tx_carrier_errors++;
1682 printk(KERN_DEBUG "%s: carrier error\n",
1684 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1685 dev->name, xmt_status);
1688 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1689 dev->name, xmt_status);
1690 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1691 dev->name, xmt_status);
1694 if (xmt_status & 0x000f) {
1695 lp->stats.collisions += (xmt_status & 0x000f);
1698 if ((xmt_status & 0x0040) == 0x0) {
1699 lp->stats.tx_heartbeat_errors++;
1707 static struct net_device dev_eepro[MAX_EEPRO];
1709 static int io[MAX_EEPRO];
1710 static int irq[MAX_EEPRO];
1711 static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1712 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1714 static int autodetect;
1717 /* For linux 2.1.xx */
1719 MODULE_AUTHOR("Pascal Dupuis, and aris@cathedrallabs.org");
1720 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1721 MODULE_LICENSE("GPL");
1723 MODULE_PARM(io, "1-" __MODULE_STRING(MAX_EEPRO) "i");
1724 MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_EEPRO) "i");
1725 MODULE_PARM(mem, "1-" __MODULE_STRING(MAX_EEPRO) "i");
1726 MODULE_PARM(autodetect, "1-" __MODULE_STRING(1) "i");
1727 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1728 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1729 MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1730 MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1736 if (io[0] == 0 && autodetect == 0) {
1737 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1738 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1741 else if (autodetect) {
1742 /* if autodetect is set then we must force detection */
1745 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1748 for (i = 0; i < MAX_EEPRO; i++) {
1749 struct net_device *d = &dev_eepro[n_eepro];
1750 d->mem_end = mem[i];
1751 d->base_addr = io[i];
1753 d->init = eepro_probe;
1755 if (register_netdev(d) == 0)
1762 printk(KERN_INFO "%s", version);
1764 return n_eepro ? 0 : -ENODEV;
1768 cleanup_module(void)
1772 for (i=0; i<n_eepro; i++) {
1773 struct net_device *d = &dev_eepro[i];
1774 unregister_netdev(d);
1779 /* If we don't do this, we can't re-insmod it later. */
1780 release_region(d->base_addr, EEPRO_IO_EXTENT);