1 /* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
3 Written 1994, 1995,1996 by Bao C. Ha.
5 Copyright (C) 1994, 1995,1996 by Bao C. Ha.
7 This software may be used and distributed
8 according to the terms of the GNU General Public License,
9 incorporated herein by reference.
11 The author may be reached at bao.ha@srs.gov
12 or 418 Hastings Place, Martinez, GA 30907.
14 Things remaining to do:
15 Better record keeping of errors.
16 Eliminate transmit interrupt to reduce overhead.
17 Implement "concurrent processing". I won't be doing it!
21 If you have a problem of not detecting the 82595 during a
22 reboot (warm reset), disable the FLASH memory should fix it.
23 This is a compatibility hardware problem.
26 0.13b basic ethtool support (aris, 09/13/2004)
27 0.13a in memory shortage, drop packets also in board
28 (Michael Westermann <mw@microdata-pos.de>, 07/30/2002)
29 0.13 irq sharing, rewrote probe function, fixed a nasty bug in
30 hardware_send_packet and a major cleanup (aris, 11/08/2001)
31 0.12d fixing a problem with single card detected as eight eth devices
32 fixing a problem with sudden drop in card performance
33 (chris (asdn@go2.pl), 10/29/2001)
34 0.12c fixing some problems with old cards (aris, 01/08/2001)
35 0.12b misc fixes (aris, 06/26/2000)
36 0.12a port of version 0.12a of 2.2.x kernels to 2.3.x
37 (aris (aris@conectiva.com.br), 05/19/2000)
38 0.11e some tweaks about multiple cards support (PdP, jul/aug 1999)
39 0.11d added __initdata, __init stuff; call spin_lock_init
40 in eepro_probe1. Replaced "eepro" by dev->name. Augmented
41 the code protected by spin_lock in interrupt routine
43 0.11c minor cleanup (PdP, RMC, 09/12/1998)
44 0.11b Pascal Dupuis (dupuis@lei.ucl.ac.be): works as a module
45 under 2.1.xx. Debug messages are flagged as KERN_DEBUG to
46 avoid console flooding. Added locking at critical parts. Now
47 the dawn thing is SMP safe.
48 0.11a Attempt to get 2.1.xx support up (RMC)
49 0.11 Brian Candler added support for multiple cards. Tested as
50 a module, no idea if it works when compiled into kernel.
52 0.10e Rick Bressler notified me that ifconfig up;ifconfig down fails
53 because the irq is lost somewhere. Fixed that by moving
54 request_irq and free_irq to eepro_open and eepro_close respectively.
55 0.10d Ugh! Now Wakeup works. Was seriously broken in my first attempt.
56 I'll need to find a way to specify an ioport other than
57 the default one in the PnP case. PnP definitively sucks.
58 And, yes, this is not the only reason.
59 0.10c PnP Wakeup Test for 595FX. uncomment #define PnPWakeup;
61 0.10b Should work now with (some) Pro/10+. At least for
62 me (and my two cards) it does. _No_ guarantee for
63 function with non-Pro/10+ cards! (don't have any)
66 0.10 Added support for the Etherexpress Pro/10+. The
67 IRQ map was changed significantly from the old
68 pro/10. The new interrupt map was provided by
69 Rainer M. Canavan (Canavan@Zeus.cs.bonn.edu).
72 0.09 Fixed a race condition in the transmit algorithm,
73 which causes crashes under heavy load with fast
74 pentium computers. The performance should also
75 improve a bit. The size of RX buffer, and hence
76 TX buffer, can also be changed via lilo or insmod.
79 0.08 Implement 32-bit I/O for the 82595TX and 82595FX
80 based lan cards. Disable full-duplex mode if TPE
81 is not used. (BCH, 4/8/96)
83 0.07a Fix a stat report which counts every packet as a
84 heart-beat failure. (BCH, 6/3/95)
86 0.07 Modified to support all other 82595-based lan cards.
87 The IRQ vector of the EtherExpress Pro will be set
88 according to the value saved in the EEPROM. For other
89 cards, I will do autoirq_request() to grab the next
90 available interrupt vector. (BCH, 3/17/95)
92 0.06a,b Interim released. Minor changes in the comments and
93 print out format. (BCH, 3/9/95 and 3/14/95)
95 0.06 First stable release that I am comfortable with. (BCH,
98 0.05 Complete testing of multicast. (BCH, 2/23/95)
100 0.04 Adding multicast support. (BCH, 2/14/95)
102 0.03 First widely alpha release for public testing.
107 static const char version[] =
108 "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n";
110 #include <linux/module.h>
115 This driver wouldn't have been written without the availability
116 of the Crynwr's Lan595 driver source code. It helps me to
117 familiarize with the 82595 chipset while waiting for the Intel
118 documentation. I also learned how to detect the 82595 using
119 the packet driver's technique.
121 This driver is written by cutting and pasting the skeleton.c driver
122 provided by Donald Becker. I also borrowed the EEPROM routine from
123 Donald Becker's 82586 driver.
125 Datasheet for the Intel 82595 (including the TX and FX version). It
126 provides just enough info that the casual reader might think that it
127 documents the i82595.
129 The User Manual for the 82595. It provides a lot of the missing
134 #include <linux/kernel.h>
135 #include <linux/types.h>
136 #include <linux/fcntl.h>
137 #include <linux/interrupt.h>
138 #include <linux/ioport.h>
139 #include <linux/in.h>
140 #include <linux/slab.h>
141 #include <linux/string.h>
142 #include <linux/errno.h>
143 #include <linux/netdevice.h>
144 #include <linux/etherdevice.h>
145 #include <linux/skbuff.h>
146 #include <linux/spinlock.h>
147 #include <linux/init.h>
148 #include <linux/delay.h>
149 #include <linux/bitops.h>
150 #include <linux/ethtool.h>
152 #include <asm/system.h>
156 #define DRV_NAME "eepro"
157 #define DRV_VERSION "0.13c"
159 #define compat_dev_kfree_skb( skb, mode ) dev_kfree_skb( (skb) )
160 /* I had reports of looong delays with SLOW_DOWN defined as udelay(2) */
161 #define SLOW_DOWN inb(0x80)
163 #define compat_init_data __initdata
164 enum iftype { AUI=0, BNC=1, TPE=2 };
166 /* First, a few definitions that the brave might change. */
167 /* A zero-terminated list of I/O addresses to be probed. */
168 static unsigned int eepro_portlist[] compat_init_data =
169 { 0x300, 0x210, 0x240, 0x280, 0x2C0, 0x200, 0x320, 0x340, 0x360, 0};
170 /* note: 0x300 is default, the 595FX supports ALL IO Ports
171 from 0x000 to 0x3F0, some of which are reserved in PCs */
173 /* To try the (not-really PnP Wakeup: */
178 /* use 0 for production, 1 for verification, >2 for debug */
182 static unsigned int net_debug = NET_DEBUG;
184 /* The number of low I/O ports used by the ethercard. */
185 #define EEPRO_IO_EXTENT 16
187 /* Different 82595 chips */
191 #define LAN595FX_10ISA 3
193 /* Information that need to be kept for each board. */
196 unsigned tx_start; /* start of the transmit chain */
197 int tx_last; /* pointer to last packet in the transmit chain */
198 unsigned tx_end; /* end of the transmit chain (plus 1) */
199 int eepro; /* 1 for the EtherExpress Pro/10,
200 2 for the EtherExpress Pro/10+,
201 3 for the EtherExpress 10 (blue cards),
202 0 for other 82595-based lan cards. */
203 int version; /* a flag to indicate if this is a TX or FX
204 version of the 82595 chip. */
207 spinlock_t lock; /* Serializing lock */
209 unsigned rcv_ram; /* pre-calculated space for rx */
210 unsigned xmt_ram; /* pre-calculated space for tx */
211 unsigned char xmt_bar;
212 unsigned char xmt_lower_limit_reg;
213 unsigned char xmt_upper_limit_reg;
214 short xmt_lower_limit;
215 short xmt_upper_limit;
216 short rcv_lower_limit;
217 short rcv_upper_limit;
218 unsigned char eeprom_reg;
219 unsigned short word[8];
222 /* The station (ethernet) address prefix, used for IDing the board. */
223 #define SA_ADDR0 0x00 /* Etherexpress Pro/10 */
224 #define SA_ADDR1 0xaa
225 #define SA_ADDR2 0x00
227 #define GetBit(x,y) ((x & (1<<y))>>y)
230 #define ee_PnP 0 /* Plug 'n Play enable bit */
231 #define ee_Word1 1 /* Word 1? */
232 #define ee_BusWidth 2 /* 8/16 bit */
233 #define ee_FlashAddr 3 /* Flash Address */
234 #define ee_FlashMask 0x7 /* Mask */
235 #define ee_AutoIO 6 /* */
236 #define ee_reserved0 7 /* =0! */
237 #define ee_Flash 8 /* Flash there? */
238 #define ee_AutoNeg 9 /* Auto Negotiation enabled? */
239 #define ee_IO0 10 /* IO Address LSB */
240 #define ee_IO0Mask 0x /*...*/
241 #define ee_IO1 15 /* IO MSB */
244 #define ee_IntSel 0 /* Interrupt */
245 #define ee_IntMask 0x7
246 #define ee_LI 3 /* Link Integrity 0= enabled */
247 #define ee_PC 4 /* Polarity Correction 0= enabled */
248 #define ee_TPE_AUI 5 /* PortSelection 1=TPE */
249 #define ee_Jabber 6 /* Jabber prevention 0= enabled */
250 #define ee_AutoPort 7 /* Auto Port Selection 1= Disabled */
251 #define ee_SMOUT 8 /* SMout Pin Control 0= Input */
252 #define ee_PROM 9 /* Flash EPROM / PROM 0=Flash */
253 #define ee_reserved1 10 /* .. 12 =0! */
254 #define ee_AltReady 13 /* Alternate Ready, 0=normal */
255 #define ee_reserved2 14 /* =0! */
259 #define ee_IA5 0 /*bit start for individual Addr Byte 5 */
260 #define ee_IA4 8 /*bit start for individual Addr Byte 5 */
261 #define ee_IA3 0 /*bit start for individual Addr Byte 5 */
262 #define ee_IA2 8 /*bit start for individual Addr Byte 5 */
263 #define ee_IA1 0 /*bit start for individual Addr Byte 5 */
264 #define ee_IA0 8 /*bit start for individual Addr Byte 5 */
267 #define ee_BNC_TPE 0 /* 0=TPE */
268 #define ee_BootType 1 /* 00=None, 01=IPX, 10=ODI, 11=NDIS */
269 #define ee_BootTypeMask 0x3
270 #define ee_NumConn 3 /* Number of Connections 0= One or Two */
271 #define ee_FlashSock 4 /* Presence of Flash Socket 0= Present */
275 #define ee_PowerMgt 10 /* 0= disabled */
276 #define ee_CP 13 /* Concurrent Processing */
277 #define ee_CPMask 0x7
280 #define ee_Stepping 0 /* Stepping info */
281 #define ee_StepMask 0x0F
282 #define ee_BoardID 4 /* Manucaturer Board ID, reserved */
283 #define ee_BoardMask 0x0FFF
286 #define ee_INT_TO_IRQ 0 /* int to IRQ Mapping = 0x1EB8 for Pro/10+ */
287 #define ee_FX_INT2IRQ 0x1EB8 /* the _only_ mapping allowed for FX chips */
290 #define ee_SIZE 0x40 /* total EEprom Size */
291 #define ee_Checksum 0xBABA /* initial and final value for adding checksum */
294 /* Card identification via EEprom: */
295 #define ee_addr_vendor 0x10 /* Word offset for EISA Vendor ID */
296 #define ee_addr_id 0x11 /* Word offset for Card ID */
297 #define ee_addr_SN 0x12 /* Serial Number */
298 #define ee_addr_CRC_8 0x14 /* CRC over last thee Bytes */
301 #define ee_vendor_intel0 0x25 /* Vendor ID Intel */
302 #define ee_vendor_intel1 0xD4
303 #define ee_id_eepro10p0 0x10 /* ID for eepro/10+ */
304 #define ee_id_eepro10p1 0x31
306 #define TX_TIMEOUT 40
308 /* Index to functions, as function prototypes. */
310 static int eepro_probe1(struct net_device *dev, int autoprobe);
311 static int eepro_open(struct net_device *dev);
312 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev);
313 static irqreturn_t eepro_interrupt(int irq, void *dev_id);
314 static void eepro_rx(struct net_device *dev);
315 static void eepro_transmit_interrupt(struct net_device *dev);
316 static int eepro_close(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 dev->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 static int __init do_eepro_probe(struct net_device *dev)
535 int base_addr = dev->base_addr;
539 /* XXXX for multiple cards should this only be run once? */
542 #define WakeupPort 0x279
543 #define WakeupSeq {0x6A, 0xB5, 0xDA, 0xED, 0xF6, 0xFB, 0x7D, 0xBE,\
544 0xDF, 0x6F, 0x37, 0x1B, 0x0D, 0x86, 0xC3, 0x61,\
545 0xB0, 0x58, 0x2C, 0x16, 0x8B, 0x45, 0xA2, 0xD1,\
546 0xE8, 0x74, 0x3A, 0x9D, 0xCE, 0xE7, 0x73, 0x43}
549 unsigned short int WS[32]=WakeupSeq;
551 if (request_region(WakeupPort, 2, "eepro wakeup")) {
553 printk(KERN_DEBUG "Waking UP\n");
555 outb_p(0,WakeupPort);
556 outb_p(0,WakeupPort);
557 for (i=0; i<32; i++) {
558 outb_p(WS[i],WakeupPort);
559 if (net_debug>5) printk(KERN_DEBUG ": %#x ",WS[i]);
562 release_region(WakeupPort, 2);
564 printk(KERN_WARNING "PnP wakeup region busy!\n");
568 if (base_addr > 0x1ff) /* Check a single specified location. */
569 return eepro_probe1(dev, 0);
571 else if (base_addr != 0) /* Don't probe at all. */
574 for (i = 0; eepro_portlist[i]; i++) {
575 dev->base_addr = eepro_portlist[i];
577 if (eepro_probe1(dev, 1) == 0)
585 struct net_device * __init eepro_probe(int unit)
587 struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local));
591 return ERR_PTR(-ENODEV);
593 sprintf(dev->name, "eth%d", unit);
594 netdev_boot_setup_check(dev);
596 err = do_eepro_probe(dev);
606 static void __init printEEPROMInfo(struct net_device *dev)
608 struct eepro_local *lp = netdev_priv(dev);
609 int ioaddr = dev->base_addr;
614 for (i = 0; i < 8; i++)
616 for ( ; i < ee_SIZE; i++)
617 j += read_eeprom(ioaddr, i, dev);
619 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
622 printk(KERN_DEBUG "Word0:\n");
623 printk(KERN_DEBUG " Plug 'n Pray: %d\n",GetBit(Word,ee_PnP));
624 printk(KERN_DEBUG " Buswidth: %d\n",(GetBit(Word,ee_BusWidth)+1)*8 );
625 printk(KERN_DEBUG " AutoNegotiation: %d\n",GetBit(Word,ee_AutoNeg));
626 printk(KERN_DEBUG " IO Address: %#x\n", (Word>>ee_IO0)<<4);
630 printk(KERN_DEBUG "Word1:\n");
631 printk(KERN_DEBUG " INT: %d\n", Word & ee_IntMask);
632 printk(KERN_DEBUG " LI: %d\n", GetBit(Word,ee_LI));
633 printk(KERN_DEBUG " PC: %d\n", GetBit(Word,ee_PC));
634 printk(KERN_DEBUG " TPE/AUI: %d\n", GetBit(Word,ee_TPE_AUI));
635 printk(KERN_DEBUG " Jabber: %d\n", GetBit(Word,ee_Jabber));
636 printk(KERN_DEBUG " AutoPort: %d\n", !GetBit(Word,ee_AutoPort));
637 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
641 printk(KERN_DEBUG "Word5:\n");
642 printk(KERN_DEBUG " BNC: %d\n",GetBit(Word,ee_BNC_TPE));
643 printk(KERN_DEBUG " NumConnectors: %d\n",GetBit(Word,ee_NumConn));
644 printk(KERN_DEBUG " Has ");
645 if (GetBit(Word,ee_PortTPE)) printk(KERN_DEBUG "TPE ");
646 if (GetBit(Word,ee_PortBNC)) printk(KERN_DEBUG "BNC ");
647 if (GetBit(Word,ee_PortAUI)) printk(KERN_DEBUG "AUI ");
648 printk(KERN_DEBUG "port(s) \n");
651 printk(KERN_DEBUG "Word6:\n");
652 printk(KERN_DEBUG " Stepping: %d\n",Word & ee_StepMask);
653 printk(KERN_DEBUG " BoardID: %d\n",Word>>ee_BoardID);
656 printk(KERN_DEBUG "Word7:\n");
657 printk(KERN_DEBUG " INT to IRQ:\n");
659 for (i=0, j=0; i<15; i++)
660 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
662 printk(KERN_DEBUG "\n");
665 /* function to recalculate the limits of buffer based on rcv_ram */
666 static void eepro_recalc (struct net_device *dev)
668 struct eepro_local * lp;
670 lp = netdev_priv(dev);
671 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
673 if (lp->eepro == LAN595FX_10ISA) {
674 lp->xmt_lower_limit = XMT_START_10;
675 lp->xmt_upper_limit = (lp->xmt_ram - 2);
676 lp->rcv_lower_limit = lp->xmt_ram;
677 lp->rcv_upper_limit = (RAM_SIZE - 2);
680 lp->rcv_lower_limit = RCV_START_PRO;
681 lp->rcv_upper_limit = (lp->rcv_ram - 2);
682 lp->xmt_lower_limit = lp->rcv_ram;
683 lp->xmt_upper_limit = (RAM_SIZE - 2);
687 /* prints boot-time info */
688 static void __init eepro_print_info (struct net_device *dev)
690 struct eepro_local * lp = netdev_priv(dev);
692 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
694 i = inb(dev->base_addr + ID_REG);
695 printk(KERN_DEBUG " id: %#x ",i);
696 printk(" io: %#x ", (unsigned)dev->base_addr);
700 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
701 dev->name, (unsigned)dev->base_addr);
704 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
705 dev->name, (unsigned)dev->base_addr);
708 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
709 dev->name, (unsigned)dev->base_addr);
712 printk("%s: Intel 82595-based lan card at %#x,",
713 dev->name, (unsigned)dev->base_addr);
717 printk(" %pM", dev->dev_addr);
720 printk(KERN_DEBUG ", %dK RCV buffer",
721 (int)(lp->rcv_ram)/1024);
724 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
726 printk(", %s.\n", ifmap[dev->if_port]);
730 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
731 printk(KERN_DEBUG "%s: Concurrent Processing is "
732 "enabled but not used!\n", dev->name);
735 /* Check the station address for the manufacturer's code */
737 printEEPROMInfo(dev);
740 static const struct ethtool_ops eepro_ethtool_ops;
742 static const struct net_device_ops eepro_netdev_ops = {
743 .ndo_open = eepro_open,
744 .ndo_stop = eepro_close,
745 .ndo_start_xmit = eepro_send_packet,
746 .ndo_set_multicast_list = set_multicast_list,
747 .ndo_tx_timeout = eepro_tx_timeout,
748 .ndo_change_mtu = eth_change_mtu,
749 .ndo_set_mac_address = eth_mac_addr,
750 .ndo_validate_addr = eth_validate_addr,
753 /* This is the real probe routine. Linux has a history of friendly device
754 probes on the ISA bus. A good device probe avoids doing writes, and
755 verifies that the correct device exists and functions. */
757 static int __init eepro_probe1(struct net_device *dev, int autoprobe)
759 unsigned short station_addr[3], id, counter;
761 struct eepro_local *lp;
762 int ioaddr = dev->base_addr;
765 /* Grab the region so we can find another board if autoIRQ fails. */
766 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
768 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
773 /* Now, we are going to check for the signature of the
774 ID_REG (register 2 of bank 0) */
776 id = inb(ioaddr + ID_REG);
778 if ((id & ID_REG_MASK) != ID_REG_SIG)
781 /* We seem to have the 82595 signature, let's
782 play with its counter (last 2 bits of
783 register 2 of bank 0) to be sure. */
785 counter = id & R_ROBIN_BITS;
787 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
790 lp = netdev_priv(dev);
791 memset(lp, 0, sizeof(struct eepro_local));
792 lp->xmt_bar = XMT_BAR_PRO;
793 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
794 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
795 lp->eeprom_reg = EEPROM_REG_PRO;
796 spin_lock_init(&lp->lock);
798 /* Now, get the ethernet hardware address from
800 station_addr[0] = read_eeprom(ioaddr, 2, dev);
802 /* FIXME - find another way to know that we've found
805 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
806 lp->eepro = LAN595FX_10ISA;
807 lp->eeprom_reg = EEPROM_REG_10;
808 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
809 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
810 lp->xmt_bar = XMT_BAR_10;
811 station_addr[0] = read_eeprom(ioaddr, 2, dev);
814 /* get all words at once. will be used here and for ethtool */
815 for (i = 0; i < 8; i++) {
816 lp->word[i] = read_eeprom(ioaddr, i, dev);
818 station_addr[1] = lp->word[3];
819 station_addr[2] = lp->word[4];
822 if (lp->word[7] == ee_FX_INT2IRQ)
824 else if (station_addr[2] == SA_ADDR1)
828 /* Fill in the 'dev' fields. */
829 for (i=0; i < 6; i++)
830 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
832 /* RX buffer must be more than 3K and less than 29K */
833 if (dev->mem_end < 3072 || dev->mem_end > 29696)
834 lp->rcv_ram = RCV_DEFAULT_RAM;
836 /* calculate {xmt,rcv}_{lower,upper}_limit */
839 if (GetBit(lp->word[5], ee_BNC_TPE))
844 if (dev->irq < 2 && lp->eepro != 0) {
845 /* Mask off INT number */
846 int count = lp->word[1] & 7;
847 unsigned irqMask = lp->word[7];
850 irqMask &= irqMask - 1;
852 count = ffs(irqMask);
855 dev->irq = count - 1;
858 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
860 } else if (dev->irq == 2) {
865 dev->netdev_ops = &eepro_netdev_ops;
866 dev->watchdog_timeo = TX_TIMEOUT;
867 dev->ethtool_ops = &eepro_ethtool_ops;
869 /* print boot time info */
870 eepro_print_info(dev);
875 err = register_netdev(dev);
882 release_region(dev->base_addr, EEPRO_IO_EXTENT);
886 /* Open/initialize the board. This is called (in the current kernel)
887 sometime after booting when the 'ifconfig' program is run.
889 This routine should set everything up anew at each open, even
890 registers that "should" only need to be set once at boot, so that
891 there is non-reboot way to recover if something goes wrong.
894 static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
895 static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
896 static int eepro_grab_irq(struct net_device *dev)
898 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
899 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
901 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
903 /* Enable the interrupt line. */
904 eepro_en_intline(ioaddr);
906 /* be CAREFUL, BANK 0 now */
907 eepro_sw2bank0(ioaddr);
909 /* clear all interrupts */
910 eepro_clear_int(ioaddr);
912 /* Let EXEC event to interrupt */
913 eepro_en_intexec(ioaddr);
916 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
918 temp_reg = inb(ioaddr + INT_NO_REG);
919 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
921 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
923 if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) {
924 unsigned long irq_mask;
925 /* Twinkle the interrupt, and check if it's seen */
926 irq_mask = probe_irq_on();
928 eepro_diag(ioaddr); /* RESET the 82595 */
931 if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */
934 /* clear all interrupts */
935 eepro_clear_int(ioaddr);
939 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
941 /* Disable the physical interrupt line. */
942 eepro_dis_intline(ioaddr);
944 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
946 /* Mask all the interrupts. */
947 eepro_dis_int(ioaddr);
949 /* clear all interrupts */
950 eepro_clear_int(ioaddr);
955 static int eepro_open(struct net_device *dev)
957 unsigned short temp_reg, old8, old9;
959 int i, ioaddr = dev->base_addr;
960 struct eepro_local *lp = netdev_priv(dev);
963 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
965 irqMask = lp->word[7];
967 if (lp->eepro == LAN595FX_10ISA) {
968 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
970 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
972 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
973 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
976 else if ((dev->dev_addr[0] == SA_ADDR0 &&
977 dev->dev_addr[1] == SA_ADDR1 &&
978 dev->dev_addr[2] == SA_ADDR2))
981 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
982 } /* Yes, an Intel EtherExpress Pro/10 */
984 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
986 /* Get the interrupt vector for the 82595 */
987 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
988 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
992 if (request_irq(dev->irq , &eepro_interrupt, 0, dev->name, dev)) {
993 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
997 /* Initialize the 82595. */
999 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1000 temp_reg = inb(ioaddr + lp->eeprom_reg);
1002 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
1005 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1007 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1008 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1009 for (i=0; i < 6; i++)
1010 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1012 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1013 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1014 | RCV_Discard_BadFrame, ioaddr + REG1);
1016 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1017 outb(temp_reg | 0x14, ioaddr + REG2);
1019 temp_reg = inb(ioaddr + REG3);
1020 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1022 /* Set the receiving mode */
1023 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1025 /* Set the interrupt vector */
1026 temp_reg = inb(ioaddr + INT_NO_REG);
1027 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1028 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1029 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1032 temp_reg = inb(ioaddr + INT_NO_REG);
1033 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1034 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1035 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1038 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1041 /* Initialize the RCV and XMT upper and lower limits */
1042 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1043 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
1044 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1045 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1047 /* Enable the interrupt line. */
1048 eepro_en_intline(ioaddr);
1050 /* Switch back to Bank 0 */
1051 eepro_sw2bank0(ioaddr);
1053 /* Let RX and TX events to interrupt */
1054 eepro_en_int(ioaddr);
1056 /* clear all interrupts */
1057 eepro_clear_int(ioaddr);
1059 /* Initialize RCV */
1060 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
1061 lp->rx_start = lp->rcv_lower_limit;
1062 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
1064 /* Initialize XMT */
1065 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
1066 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1069 /* Check for the i82595TX and i82595FX */
1070 old8 = inb(ioaddr + 8);
1071 outb(~old8, ioaddr + 8);
1073 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1075 printk(KERN_DEBUG "i82595 detected!\n");
1076 lp->version = LAN595;
1079 lp->version = LAN595TX;
1080 outb(old8, ioaddr + 8);
1081 old9 = inb(ioaddr + 9);
1083 if (irqMask==ee_FX_INT2IRQ) {
1084 if (net_debug > 3) {
1085 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1086 printk(KERN_DEBUG "i82595FX detected!\n");
1088 lp->version = LAN595FX;
1089 outb(old9, ioaddr + 9);
1090 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1091 problem of using Pentiums and
1093 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1094 temp_reg = inb(ioaddr + REG13);
1095 /* disable the full duplex mode since it is not
1096 applicable with the 10Base2 cable. */
1097 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1098 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1101 else if (net_debug > 3) {
1102 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1103 printk(KERN_DEBUG "i82595TX detected!\n");
1107 eepro_sel_reset(ioaddr);
1109 netif_start_queue(dev);
1112 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1115 eepro_en_rx(ioaddr);
1120 static void eepro_tx_timeout (struct net_device *dev)
1122 struct eepro_local *lp = netdev_priv(dev);
1123 int ioaddr = dev->base_addr;
1125 /* if (net_debug > 1) */
1126 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1127 "network cable problem");
1128 /* This is not a duplicate. One message for the console,
1129 one for the log file */
1130 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1131 "network cable problem");
1132 eepro_complete_selreset(ioaddr);
1136 static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1138 struct eepro_local *lp = netdev_priv(dev);
1139 unsigned long flags;
1140 int ioaddr = dev->base_addr;
1141 short length = skb->len;
1144 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1146 if (length < ETH_ZLEN) {
1147 if (skb_padto(skb, ETH_ZLEN))
1151 netif_stop_queue (dev);
1153 eepro_dis_int(ioaddr);
1154 spin_lock_irqsave(&lp->lock, flags);
1157 unsigned char *buf = skb->data;
1159 if (hardware_send_packet(dev, buf, length))
1160 /* we won't wake queue here because we're out of space */
1161 dev->stats.tx_dropped++;
1163 dev->stats.tx_bytes+=skb->len;
1164 dev->trans_start = jiffies;
1165 netif_wake_queue(dev);
1170 dev_kfree_skb (skb);
1172 /* You might need to clean up and record Tx statistics here. */
1173 /* dev->stats.tx_aborted_errors++; */
1176 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1178 eepro_en_int(ioaddr);
1179 spin_unlock_irqrestore(&lp->lock, flags);
1185 /* The typical workload of the driver:
1186 Handle the network interface interrupts. */
1189 eepro_interrupt(int irq, void *dev_id)
1191 struct net_device *dev = dev_id;
1192 struct eepro_local *lp;
1193 int ioaddr, status, boguscount = 20;
1196 lp = netdev_priv(dev);
1198 spin_lock(&lp->lock);
1201 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1203 ioaddr = dev->base_addr;
1205 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1208 if (status & RX_INT) {
1210 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1212 eepro_dis_int(ioaddr);
1214 /* Get the received packets */
1215 eepro_ack_rx(ioaddr);
1218 eepro_en_int(ioaddr);
1220 if (status & TX_INT) {
1222 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1225 eepro_dis_int(ioaddr);
1227 /* Process the status of transmitted packets */
1228 eepro_ack_tx(ioaddr);
1229 eepro_transmit_interrupt(dev);
1231 eepro_en_int(ioaddr);
1236 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1238 spin_unlock(&lp->lock);
1239 return IRQ_RETVAL(handled);
1242 static int eepro_close(struct net_device *dev)
1244 struct eepro_local *lp = netdev_priv(dev);
1245 int ioaddr = dev->base_addr;
1248 netif_stop_queue(dev);
1250 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1252 /* Disable the physical interrupt line. */
1253 temp_reg = inb(ioaddr + REG1);
1254 outb(temp_reg & 0x7f, ioaddr + REG1);
1256 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1258 /* Flush the Tx and disable Rx. */
1259 outb(STOP_RCV_CMD, ioaddr);
1260 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1263 /* Mask all the interrupts. */
1264 eepro_dis_int(ioaddr);
1266 /* clear all interrupts */
1267 eepro_clear_int(ioaddr);
1269 /* Reset the 82595 */
1270 eepro_reset(ioaddr);
1272 /* release the interrupt */
1273 free_irq(dev->irq, dev);
1275 /* Update the statistics here. What statistics? */
1280 /* Set or clear the multicast filter for this adaptor.
1283 set_multicast_list(struct net_device *dev)
1285 struct eepro_local *lp = netdev_priv(dev);
1286 short ioaddr = dev->base_addr;
1287 unsigned short mode;
1288 struct dev_mc_list *dmi=dev->mc_list;
1290 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1292 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1293 mode = inb(ioaddr + REG2);
1294 outb(mode | PRMSC_Mode, ioaddr + REG2);
1295 mode = inb(ioaddr + REG3);
1296 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1297 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1300 else if (dev->mc_count==0 )
1302 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1303 mode = inb(ioaddr + REG2);
1304 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1305 mode = inb(ioaddr + REG3);
1306 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1307 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1312 unsigned short status, *eaddrs;
1313 int i, boguscount = 0;
1315 /* Disable RX and TX interrupts. Necessary to avoid
1316 corruption of the HOST_ADDRESS_REG by interrupt
1317 service routines. */
1318 eepro_dis_int(ioaddr);
1320 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1321 mode = inb(ioaddr + REG2);
1322 outb(mode | Multi_IA, ioaddr + REG2);
1323 mode = inb(ioaddr + REG3);
1324 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1325 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1326 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1327 outw(MC_SETUP, ioaddr + IO_PORT);
1328 outw(0, ioaddr + IO_PORT);
1329 outw(0, ioaddr + IO_PORT);
1330 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1332 for (i = 0; i < dev->mc_count; i++)
1334 eaddrs=(unsigned short *)dmi->dmi_addr;
1336 outw(*eaddrs++, ioaddr + IO_PORT);
1337 outw(*eaddrs++, ioaddr + IO_PORT);
1338 outw(*eaddrs++, ioaddr + IO_PORT);
1341 eaddrs = (unsigned short *) dev->dev_addr;
1342 outw(eaddrs[0], ioaddr + IO_PORT);
1343 outw(eaddrs[1], ioaddr + IO_PORT);
1344 outw(eaddrs[2], ioaddr + IO_PORT);
1345 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1346 outb(MC_SETUP, ioaddr);
1348 /* Update the transmit queue */
1349 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1351 if (lp->tx_start != lp->tx_end)
1353 /* update the next address and the chain bit in the
1355 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1356 outw(i, ioaddr + IO_PORT);
1357 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1358 status = inw(ioaddr + IO_PORT);
1359 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1363 lp->tx_start = lp->tx_end = i ;
1366 /* Acknowledge that the MC setup is done */
1367 do { /* We should be doing this in the eepro_interrupt()! */
1370 if (inb(ioaddr + STATUS_REG) & 0x08)
1373 outb(0x08, ioaddr + STATUS_REG);
1375 if (i & 0x20) { /* command ABORTed */
1376 printk(KERN_NOTICE "%s: multicast setup failed.\n",
1379 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1380 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1381 dev->name, dev->mc_count,
1382 dev->mc_count > 1 ? "es":"");
1386 } while (++boguscount < 100);
1388 /* Re-enable RX and TX interrupts */
1389 eepro_en_int(ioaddr);
1391 if (lp->eepro == LAN595FX_10ISA) {
1392 eepro_complete_selreset(ioaddr);
1395 eepro_en_rx(ioaddr);
1398 /* The horrible routine to read a word from the serial EEPROM. */
1399 /* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1401 /* The delay between EEPROM clock transitions. */
1402 #define eeprom_delay() { udelay(40); }
1403 #define EE_READ_CMD (6 << 6)
1406 read_eeprom(int ioaddr, int location, struct net_device *dev)
1409 unsigned short retval = 0;
1410 struct eepro_local *lp = netdev_priv(dev);
1411 short ee_addr = ioaddr + lp->eeprom_reg;
1412 int read_cmd = location | EE_READ_CMD;
1413 short ctrl_val = EECS ;
1415 /* XXXX - black magic */
1416 eepro_sw2bank1(ioaddr);
1417 outb(0x00, ioaddr + STATUS_REG);
1418 /* XXXX - black magic */
1420 eepro_sw2bank2(ioaddr);
1421 outb(ctrl_val, ee_addr);
1423 /* Shift the read command bits out. */
1424 for (i = 8; i >= 0; i--) {
1425 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1427 outb(outval, ee_addr);
1428 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1430 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1433 outb(ctrl_val, ee_addr);
1435 for (i = 16; i > 0; i--) {
1436 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1437 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1438 outb(ctrl_val, ee_addr); eeprom_delay();
1441 /* Terminate the EEPROM access. */
1443 outb(ctrl_val | EESK, ee_addr);
1445 outb(ctrl_val, ee_addr);
1447 eepro_sw2bank0(ioaddr);
1452 hardware_send_packet(struct net_device *dev, void *buf, short length)
1454 struct eepro_local *lp = netdev_priv(dev);
1455 short ioaddr = dev->base_addr;
1456 unsigned status, tx_available, last, end;
1459 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1461 /* determine how much of the transmit buffer space is available */
1462 if (lp->tx_end > lp->tx_start)
1463 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1464 else if (lp->tx_end < lp->tx_start)
1465 tx_available = lp->tx_start - lp->tx_end;
1466 else tx_available = lp->xmt_ram;
1468 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1469 /* No space available ??? */
1474 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1476 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
1477 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
1478 /* Arrrr!!!, must keep the xmt header together,
1479 several days were lost to chase this one down. */
1480 last = lp->xmt_lower_limit;
1481 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1483 else end = lp->xmt_lower_limit + (end -
1484 lp->xmt_upper_limit + 2);
1487 outw(last, ioaddr + HOST_ADDRESS_REG);
1488 outw(XMT_CMD, ioaddr + IO_PORT);
1489 outw(0, ioaddr + IO_PORT);
1490 outw(end, ioaddr + IO_PORT);
1491 outw(length, ioaddr + IO_PORT);
1493 if (lp->version == LAN595)
1494 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1495 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1496 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1497 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1498 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1499 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1502 /* A dummy read to flush the DRAM write pipeline */
1503 status = inw(ioaddr + IO_PORT);
1505 if (lp->tx_start == lp->tx_end) {
1506 outw(last, ioaddr + lp->xmt_bar);
1507 outb(XMT_CMD, ioaddr);
1508 lp->tx_start = last; /* I don't like to change tx_start here */
1511 /* update the next address and the chain bit in the
1514 if (lp->tx_end != last) {
1515 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1516 outw(last, ioaddr + IO_PORT);
1519 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1520 status = inw(ioaddr + IO_PORT);
1521 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1523 /* Continue the transmit command */
1524 outb(RESUME_XMT_CMD, ioaddr);
1531 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1537 eepro_rx(struct net_device *dev)
1539 struct eepro_local *lp = netdev_priv(dev);
1540 short ioaddr = dev->base_addr;
1541 short boguscount = 20;
1542 short rcv_car = lp->rx_start;
1543 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1546 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1548 /* Set the read pointer to the start of the RCV */
1549 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1551 rcv_event = inw(ioaddr + IO_PORT);
1553 while (rcv_event == RCV_DONE) {
1555 rcv_status = inw(ioaddr + IO_PORT);
1556 rcv_next_frame = inw(ioaddr + IO_PORT);
1557 rcv_size = inw(ioaddr + IO_PORT);
1559 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1561 /* Malloc up new buffer. */
1562 struct sk_buff *skb;
1564 dev->stats.rx_bytes+=rcv_size;
1566 skb = dev_alloc_skb(rcv_size+5);
1568 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
1569 dev->stats.rx_dropped++;
1570 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1571 lp->rx_start = rcv_next_frame;
1572 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1578 if (lp->version == LAN595)
1579 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1580 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1581 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1582 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1583 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1584 (rcv_size + 3) >> 2);
1585 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1588 skb->protocol = eth_type_trans(skb,dev);
1590 dev->stats.rx_packets++;
1593 else { /* Not sure will ever reach here,
1594 I set the 595 to discard bad received frames */
1595 dev->stats.rx_errors++;
1597 if (rcv_status & 0x0100)
1598 dev->stats.rx_over_errors++;
1600 else if (rcv_status & 0x0400)
1601 dev->stats.rx_frame_errors++;
1603 else if (rcv_status & 0x0800)
1604 dev->stats.rx_crc_errors++;
1606 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
1607 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1610 if (rcv_status & 0x1000)
1611 dev->stats.rx_length_errors++;
1613 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1614 lp->rx_start = rcv_next_frame;
1616 if (--boguscount == 0)
1619 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1620 rcv_event = inw(ioaddr + IO_PORT);
1624 rcv_car = lp->rcv_upper_limit | 0xff;
1626 outw(rcv_car - 1, ioaddr + RCV_STOP);
1629 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1633 eepro_transmit_interrupt(struct net_device *dev)
1635 struct eepro_local *lp = netdev_priv(dev);
1636 short ioaddr = dev->base_addr;
1637 short boguscount = 25;
1640 while ((lp->tx_start != lp->tx_end) && boguscount--) {
1642 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1643 xmt_status = inw(ioaddr+IO_PORT);
1645 if (!(xmt_status & TX_DONE_BIT))
1648 xmt_status = inw(ioaddr+IO_PORT);
1649 lp->tx_start = inw(ioaddr+IO_PORT);
1651 netif_wake_queue (dev);
1653 if (xmt_status & TX_OK)
1654 dev->stats.tx_packets++;
1656 dev->stats.tx_errors++;
1657 if (xmt_status & 0x0400) {
1658 dev->stats.tx_carrier_errors++;
1659 printk(KERN_DEBUG "%s: carrier error\n",
1661 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1662 dev->name, xmt_status);
1665 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1666 dev->name, xmt_status);
1667 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1668 dev->name, xmt_status);
1671 if (xmt_status & 0x000f) {
1672 dev->stats.collisions += (xmt_status & 0x000f);
1675 if ((xmt_status & 0x0040) == 0x0) {
1676 dev->stats.tx_heartbeat_errors++;
1681 static int eepro_ethtool_get_settings(struct net_device *dev,
1682 struct ethtool_cmd *cmd)
1684 struct eepro_local *lp = netdev_priv(dev);
1686 cmd->supported = SUPPORTED_10baseT_Half |
1687 SUPPORTED_10baseT_Full |
1689 cmd->advertising = ADVERTISED_10baseT_Half |
1690 ADVERTISED_10baseT_Full |
1693 if (GetBit(lp->word[5], ee_PortTPE)) {
1694 cmd->supported |= SUPPORTED_TP;
1695 cmd->advertising |= ADVERTISED_TP;
1697 if (GetBit(lp->word[5], ee_PortBNC)) {
1698 cmd->supported |= SUPPORTED_BNC;
1699 cmd->advertising |= ADVERTISED_BNC;
1701 if (GetBit(lp->word[5], ee_PortAUI)) {
1702 cmd->supported |= SUPPORTED_AUI;
1703 cmd->advertising |= ADVERTISED_AUI;
1706 cmd->speed = SPEED_10;
1708 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1709 cmd->duplex = DUPLEX_FULL;
1712 cmd->duplex = DUPLEX_HALF;
1715 cmd->port = dev->if_port;
1716 cmd->phy_address = dev->base_addr;
1717 cmd->transceiver = XCVR_INTERNAL;
1719 if (lp->word[0] & ee_AutoNeg) {
1726 static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1727 struct ethtool_drvinfo *drvinfo)
1729 strcpy(drvinfo->driver, DRV_NAME);
1730 strcpy(drvinfo->version, DRV_VERSION);
1731 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1734 static const struct ethtool_ops eepro_ethtool_ops = {
1735 .get_settings = eepro_ethtool_get_settings,
1736 .get_drvinfo = eepro_ethtool_get_drvinfo,
1742 static struct net_device *dev_eepro[MAX_EEPRO];
1744 static int io[MAX_EEPRO] = {
1745 [0 ... MAX_EEPRO-1] = -1
1747 static int irq[MAX_EEPRO];
1748 static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1749 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1751 static int autodetect;
1754 /* For linux 2.1.xx */
1756 MODULE_AUTHOR("Pascal Dupuis and others");
1757 MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1758 MODULE_LICENSE("GPL");
1760 module_param_array(io, int, NULL, 0);
1761 module_param_array(irq, int, NULL, 0);
1762 module_param_array(mem, int, NULL, 0);
1763 module_param(autodetect, int, 0);
1764 MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1765 MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1766 MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1767 MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1769 int __init init_module(void)
1771 struct net_device *dev;
1773 if (io[0] == -1 && autodetect == 0) {
1774 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1775 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1778 else if (autodetect) {
1779 /* if autodetect is set then we must force detection */
1780 for (i = 0; i < MAX_EEPRO; i++) {
1784 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1787 for (i = 0; i < MAX_EEPRO && io[i] != -1; i++) {
1788 dev = alloc_etherdev(sizeof(struct eepro_local));
1792 dev->mem_end = mem[i];
1793 dev->base_addr = io[i];
1796 if (do_eepro_probe(dev) == 0) {
1797 dev_eepro[n_eepro++] = dev;
1805 printk(KERN_INFO "%s", version);
1807 return n_eepro ? 0 : -ENODEV;
1811 cleanup_module(void)
1815 for (i=0; i<n_eepro; i++) {
1816 struct net_device *dev = dev_eepro[i];
1817 unregister_netdev(dev);
1818 release_region(dev->base_addr, EEPRO_IO_EXTENT);