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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* eepro.c: Intel EtherExpress Pro/10 device driver for Linux. */
2/*
3 Written 1994, 1995,1996 by Bao C. Ha.
4
5 Copyright (C) 1994, 1995,1996 by Bao C. Ha.
6
7 This software may be used and distributed
8 according to the terms of the GNU General Public License,
9 incorporated herein by reference.
10
11 The author may be reached at bao.ha@srs.gov
12 or 418 Hastings Place, Martinez, GA 30907.
13
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!
18
19 Bugs:
20
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.
24
25 Versions:
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
42 (PdP, 12/12/1998)
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.
51
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;
60 to use.
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)
64 (RMC, 9/11/96)
65
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).
70 (BCH, 9/3/96)
71
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.
77 (BCH, 7/31/96)
78
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)
82
83 0.07a Fix a stat report which counts every packet as a
84 heart-beat failure. (BCH, 6/3/95)
85
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)
91
92 0.06a,b Interim released. Minor changes in the comments and
93 print out format. (BCH, 3/9/95 and 3/14/95)
94
95 0.06 First stable release that I am comfortable with. (BCH,
96 3/2/95)
97
98 0.05 Complete testing of multicast. (BCH, 2/23/95)
99
100 0.04 Adding multicast support. (BCH, 2/14/95)
101
102 0.03 First widely alpha release for public testing.
103 (BCH, 2/14/95)
104
105*/
106
107static const char version[] =
108 "eepro.c: v0.13b 09/13/2004 aris@cathedrallabs.org\n";
109
110#include <linux/module.h>
111
112/*
113 Sources:
114
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.
120
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.
124
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.
128
129 The User Manual for the 82595. It provides a lot of the missing
130 information.
131
132*/
133
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>
151
152#include <asm/system.h>
153#include <asm/io.h>
154#include <asm/dma.h>
155
156#define DRV_NAME "eepro"
Andy Gospodarekd5b20692006-09-11 17:39:18 -0400157#define DRV_VERSION "0.13c"
Linus Torvalds1da177e2005-04-16 15:20:36 -0700158
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)
162/* udelay(2) */
163#define compat_init_data __initdata
164enum iftype { AUI=0, BNC=1, TPE=2 };
165
166/* First, a few definitions that the brave might change. */
167/* A zero-terminated list of I/O addresses to be probed. */
168static 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 */
172
173/* To try the (not-really PnP Wakeup: */
174/*
175#define PnPWakeup
176*/
177
178/* use 0 for production, 1 for verification, >2 for debug */
179#ifndef NET_DEBUG
180#define NET_DEBUG 0
181#endif
182static unsigned int net_debug = NET_DEBUG;
183
184/* The number of low I/O ports used by the ethercard. */
185#define EEPRO_IO_EXTENT 16
186
187/* Different 82595 chips */
188#define LAN595 0
189#define LAN595TX 1
190#define LAN595FX 2
191#define LAN595FX_10ISA 3
192
193/* Information that need to be kept for each board. */
194struct eepro_local {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700195 unsigned rx_start;
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. */
205 int stepping;
206
207 spinlock_t lock; /* Serializing lock */
208
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];
220};
221
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
226
227#define GetBit(x,y) ((x & (1<<y))>>y)
228
229/* EEPROM Word 0: */
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 */
242
243/* EEPROM Word 1: */
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! */
256#define ee_Duplex 15
257
258/* Word2,3,4: */
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 */
265
266/* Word 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 */
272#define ee_PortTPE 5
273#define ee_PortBNC 6
274#define ee_PortAUI 7
275#define ee_PowerMgt 10 /* 0= disabled */
276#define ee_CP 13 /* Concurrent Processing */
277#define ee_CPMask 0x7
278
279/* Word 6: */
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
284
285/* Word 7: */
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 */
288
289/*..*/
290#define ee_SIZE 0x40 /* total EEprom Size */
291#define ee_Checksum 0xBABA /* initial and final value for adding checksum */
292
293
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 */
299
300
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
305
306#define TX_TIMEOUT 40
307
308/* Index to functions, as function prototypes. */
309
310static int eepro_probe1(struct net_device *dev, int autoprobe);
311static int eepro_open(struct net_device *dev);
312static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100313static irqreturn_t eepro_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314static void eepro_rx(struct net_device *dev);
315static void eepro_transmit_interrupt(struct net_device *dev);
316static int eepro_close(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317static void set_multicast_list(struct net_device *dev);
318static void eepro_tx_timeout (struct net_device *dev);
319
320static int read_eeprom(int ioaddr, int location, struct net_device *dev);
321static int hardware_send_packet(struct net_device *dev, void *buf, short length);
322static int eepro_grab_irq(struct net_device *dev);
323
324/*
325 Details of the i82595.
326
327You will need either the datasheet or the user manual to understand what
328is going on here. The 82595 is very different from the 82586, 82593.
329
330The receive algorithm in eepro_rx() is just an implementation of the
331RCV ring structure that the Intel 82595 imposes at the hardware level.
332The receive buffer is set at 24K, and the transmit buffer is 8K. I
333am assuming that the total buffer memory is 32K, which is true for the
334Intel EtherExpress Pro/10. If it is less than that on a generic card,
335the driver will be broken.
336
337The transmit algorithm in the hardware_send_packet() is similar to the
338one in the eepro_rx(). The transmit buffer is a ring linked list.
339I just queue the next available packet to the end of the list. In my
340system, the 82595 is so fast that the list seems to always contain a
341single packet. In other systems with faster computers and more congested
342network traffics, the ring linked list should improve performance by
343allowing up to 8K worth of packets to be queued.
344
345The sizes of the receive and transmit buffers can now be changed via lilo
346or insmod. Lilo uses the appended line "ether=io,irq,debug,rx-buffer,eth0"
347where rx-buffer is in KB unit. Modules uses the parameter mem which is
348also in KB unit, for example "insmod io=io-address irq=0 mem=rx-buffer."
349The receive buffer has to be more than 3K or less than 29K. Otherwise,
350it is reset to the default of 24K, and, hence, 8K for the trasnmit
351buffer (transmit-buffer = 32K - receive-buffer).
352
353*/
354#define RAM_SIZE 0x8000
355
356#define RCV_HEADER 8
357#define RCV_DEFAULT_RAM 0x6000
358
359#define XMT_HEADER 8
360#define XMT_DEFAULT_RAM (RAM_SIZE - RCV_DEFAULT_RAM)
361
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
366
367#define RCV_DONE 0x0008
368#define RX_OK 0x2000
369#define RX_ERROR 0x0d81
370
371#define TX_DONE_BIT 0x0080
372#define TX_OK 0x2000
373#define CHAIN_BIT 0x8000
374#define XMT_STATUS 0x02
375#define XMT_CHAIN 0x04
376#define XMT_COUNT 0x06
377
378#define BANK0_SELECT 0x00
379#define BANK1_SELECT 0x40
380#define BANK2_SELECT 0x80
381
382/* Bank 0 registers */
383#define COMMAND_REG 0x00 /* Register 0 */
384#define MC_SETUP 0x03
385#define XMT_CMD 0x04
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 */
395#define RX_INT 0x02
396#define TX_INT 0x04
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
405#define RX_MASK 0x02
406#define TX_MASK 0x04
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
412
413#define XMT_BAR_PRO 0x0a
414#define XMT_BAR_10 0x0b
415
416#define HOST_ADDRESS_REG 0x0c
417#define IO_PORT 0x0e
418#define IO_PORT_32_BIT 0x0c
419
420/* Bank 1 registers */
421#define REG1 0x01
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
427
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
432
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 */
437#define REG2 0x02
438#define PRMSC_Mode 0x01
439#define Multi_IA 0x20
440#define REG3 0x03
441#define TPE_BIT 0x04
442#define BNC_BIT 0x20
443#define REG13 0x0d
444#define FDX 0x00
445#define A_N_ENABLE 0x02
446
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
453
454#define EEPROM_REG_PRO 0x0a
455#define EEPROM_REG_10 0x0b
456
457#define EESK 0x01
458#define EECS 0x02
459#define EEDI 0x04
460#define EEDO 0x08
461
462/* do a full reset */
463#define eepro_reset(ioaddr) outb(RESET_CMD, ioaddr)
464
465/* do a nice reset */
466#define eepro_sel_reset(ioaddr) { \
467 outb(SEL_RESET_CMD, ioaddr); \
468 SLOW_DOWN; \
469 SLOW_DOWN; \
470 }
471
472/* disable all interrupts */
473#define eepro_dis_int(ioaddr) outb(ALL_MASK, ioaddr + INT_MASK_REG)
474
475/* clear all interrupts */
476#define eepro_clear_int(ioaddr) outb(ALL_MASK, ioaddr + STATUS_REG)
477
478/* enable tx/rx */
479#define eepro_en_int(ioaddr) outb(ALL_MASK & ~(RX_MASK | TX_MASK), \
480 ioaddr + INT_MASK_REG)
481
482/* enable exec event interrupt */
483#define eepro_en_intexec(ioaddr) outb(ALL_MASK & ~(EXEC_MASK), ioaddr + INT_MASK_REG)
484
485/* enable rx */
486#define eepro_en_rx(ioaddr) outb(RCV_ENABLE_CMD, ioaddr)
487
488/* disable rx */
489#define eepro_dis_rx(ioaddr) outb(RCV_DISABLE_CMD, ioaddr)
490
491/* switch bank */
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)
495
496/* enable interrupt line */
497#define eepro_en_intline(ioaddr) outb(inb(ioaddr + REG1) | INT_ENABLE,\
498 ioaddr + REG1)
499
500/* disable interrupt line */
501#define eepro_dis_intline(ioaddr) outb(inb(ioaddr + REG1) & 0x7f, \
502 ioaddr + REG1);
503
504/* set diagnose flag */
505#define eepro_diag(ioaddr) outb(DIAGNOSE_CMD, ioaddr)
506
507/* ack for rx int */
508#define eepro_ack_rx(ioaddr) outb (RX_INT, ioaddr + STATUS_REG)
509
510/* ack for tx int */
511#define eepro_ack_tx(ioaddr) outb (TX_INT, ioaddr + STATUS_REG)
512
513/* a complete sel reset */
514#define eepro_complete_selreset(ioaddr) { \
Jeff Garzik09f75cd2007-10-03 17:41:50 -0700515 dev->stats.tx_errors++;\
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 eepro_sel_reset(ioaddr);\
517 lp->tx_end = \
518 lp->xmt_lower_limit;\
519 lp->tx_start = lp->tx_end;\
520 lp->tx_last = 0;\
521 dev->trans_start = jiffies;\
522 netif_wake_queue(dev);\
523 eepro_en_rx(ioaddr);\
524 }
525
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).
531 */
532static int __init do_eepro_probe(struct net_device *dev)
533{
534 int i;
535 int base_addr = dev->base_addr;
536 int irq = dev->irq;
537
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538#ifdef PnPWakeup
539 /* XXXX for multiple cards should this only be run once? */
540
541 /* Wakeup: */
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}
547
548 {
549 unsigned short int WS[32]=WakeupSeq;
550
Jeff Garzikd61780c2005-10-30 15:01:51 -0800551 if (request_region(WakeupPort, 2, "eepro wakeup")) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552 if (net_debug>5)
553 printk(KERN_DEBUG "Waking UP\n");
554
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]);
560 }
Jeff Garzikd61780c2005-10-30 15:01:51 -0800561
562 release_region(WakeupPort, 2);
563 } else
564 printk(KERN_WARNING "PnP wakeup region busy!\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565 }
566#endif
567
568 if (base_addr > 0x1ff) /* Check a single specified location. */
569 return eepro_probe1(dev, 0);
570
571 else if (base_addr != 0) /* Don't probe at all. */
572 return -ENXIO;
573
574 for (i = 0; eepro_portlist[i]; i++) {
575 dev->base_addr = eepro_portlist[i];
576 dev->irq = irq;
577 if (eepro_probe1(dev, 1) == 0)
578 return 0;
579 }
580
581 return -ENODEV;
582}
583
584#ifndef MODULE
585struct net_device * __init eepro_probe(int unit)
586{
587 struct net_device *dev = alloc_etherdev(sizeof(struct eepro_local));
588 int err;
589
590 if (!dev)
591 return ERR_PTR(-ENODEV);
592
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 sprintf(dev->name, "eth%d", unit);
594 netdev_boot_setup_check(dev);
595
596 err = do_eepro_probe(dev);
597 if (err)
598 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700599 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700600out:
601 free_netdev(dev);
602 return ERR_PTR(err);
603}
604#endif
605
606static void __init printEEPROMInfo(struct net_device *dev)
607{
608 struct eepro_local *lp = (struct eepro_local *)dev->priv;
609 int ioaddr = dev->base_addr;
610 unsigned short Word;
611 int i,j;
612
613 j = ee_Checksum;
614 for (i = 0; i < 8; i++)
615 j += lp->word[i];
616 for ( ; i < ee_SIZE; i++)
617 j += read_eeprom(ioaddr, i, dev);
618
619 printk(KERN_DEBUG "Checksum: %#x\n",j&0xffff);
620
621 Word = lp->word[0];
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);
627
628 if (net_debug>4) {
629 Word = lp->word[1];
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));
Harvey Harrison4e5b8642008-04-26 23:44:03 -0700636 printk(KERN_DEBUG " AutoPort: %d\n", !GetBit(Word,ee_AutoPort));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 printk(KERN_DEBUG " Duplex: %d\n", GetBit(Word,ee_Duplex));
638 }
639
640 Word = lp->word[5];
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");
649
650 Word = lp->word[6];
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);
654
655 Word = lp->word[7];
656 printk(KERN_DEBUG "Word7:\n");
657 printk(KERN_DEBUG " INT to IRQ:\n");
658
659 for (i=0, j=0; i<15; i++)
660 if (GetBit(Word,i)) printk(KERN_DEBUG " INT%d -> IRQ %d;",j++,i);
661
662 printk(KERN_DEBUG "\n");
663}
664
665/* function to recalculate the limits of buffer based on rcv_ram */
666static void eepro_recalc (struct net_device *dev)
667{
668 struct eepro_local * lp;
669
670 lp = netdev_priv(dev);
671 lp->xmt_ram = RAM_SIZE - lp->rcv_ram;
672
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);
678 }
679 else {
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);
684 }
685}
686
687/* prints boot-time info */
688static void __init eepro_print_info (struct net_device *dev)
689{
690 struct eepro_local * lp = netdev_priv(dev);
691 int i;
692 const char * ifmap[] = {"AUI", "10Base2", "10BaseT"};
Joe Perches0795af52007-10-03 17:59:30 -0700693 DECLARE_MAC_BUF(mac);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694
695 i = inb(dev->base_addr + ID_REG);
696 printk(KERN_DEBUG " id: %#x ",i);
697 printk(" io: %#x ", (unsigned)dev->base_addr);
698
699 switch (lp->eepro) {
700 case LAN595FX_10ISA:
701 printk("%s: Intel EtherExpress 10 ISA\n at %#x,",
702 dev->name, (unsigned)dev->base_addr);
703 break;
704 case LAN595FX:
Jeff Garzikd61780c2005-10-30 15:01:51 -0800705 printk("%s: Intel EtherExpress Pro/10+ ISA\n at %#x,",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700706 dev->name, (unsigned)dev->base_addr);
707 break;
708 case LAN595TX:
709 printk("%s: Intel EtherExpress Pro/10 ISA at %#x,",
710 dev->name, (unsigned)dev->base_addr);
711 break;
712 case LAN595:
Jeff Garzikd61780c2005-10-30 15:01:51 -0800713 printk("%s: Intel 82595-based lan card at %#x,",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700714 dev->name, (unsigned)dev->base_addr);
Joe Perches0795af52007-10-03 17:59:30 -0700715 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716 }
717
Joe Perches0795af52007-10-03 17:59:30 -0700718 printk(" %s", print_mac(mac, dev->dev_addr));
Linus Torvalds1da177e2005-04-16 15:20:36 -0700719
720 if (net_debug > 3)
721 printk(KERN_DEBUG ", %dK RCV buffer",
722 (int)(lp->rcv_ram)/1024);
723
724 if (dev->irq > 2)
725 printk(", IRQ %d, %s.\n", dev->irq, ifmap[dev->if_port]);
Jeff Garzikd61780c2005-10-30 15:01:51 -0800726 else
Linus Torvalds1da177e2005-04-16 15:20:36 -0700727 printk(", %s.\n", ifmap[dev->if_port]);
728
729 if (net_debug > 3) {
730 i = lp->word[5];
731 if (i & 0x2000) /* bit 13 of EEPROM word 5 */
732 printk(KERN_DEBUG "%s: Concurrent Processing is "
733 "enabled but not used!\n", dev->name);
734 }
735
736 /* Check the station address for the manufacturer's code */
737 if (net_debug>3)
738 printEEPROMInfo(dev);
739}
740
Jeff Garzik7282d492006-09-13 14:30:00 -0400741static const struct ethtool_ops eepro_ethtool_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742
743/* This is the real probe routine. Linux has a history of friendly device
744 probes on the ISA bus. A good device probe avoids doing writes, and
745 verifies that the correct device exists and functions. */
746
747static int __init eepro_probe1(struct net_device *dev, int autoprobe)
748{
749 unsigned short station_addr[3], id, counter;
750 int i;
751 struct eepro_local *lp;
752 int ioaddr = dev->base_addr;
b1fc5502005-05-12 20:11:55 -0400753 int err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
755 /* Grab the region so we can find another board if autoIRQ fails. */
Jeff Garzikd61780c2005-10-30 15:01:51 -0800756 if (!request_region(ioaddr, EEPRO_IO_EXTENT, DRV_NAME)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700757 if (!autoprobe)
758 printk(KERN_WARNING "EEPRO: io-port 0x%04x in use \n",
759 ioaddr);
760 return -EBUSY;
761 }
762
763 /* Now, we are going to check for the signature of the
764 ID_REG (register 2 of bank 0) */
765
766 id = inb(ioaddr + ID_REG);
767
768 if ((id & ID_REG_MASK) != ID_REG_SIG)
769 goto exit;
770
771 /* We seem to have the 82595 signature, let's
772 play with its counter (last 2 bits of
773 register 2 of bank 0) to be sure. */
774
775 counter = id & R_ROBIN_BITS;
776
777 if ((inb(ioaddr + ID_REG) & R_ROBIN_BITS) != (counter + 0x40))
778 goto exit;
779
780 lp = netdev_priv(dev);
781 memset(lp, 0, sizeof(struct eepro_local));
782 lp->xmt_bar = XMT_BAR_PRO;
783 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_PRO;
784 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_PRO;
785 lp->eeprom_reg = EEPROM_REG_PRO;
786 spin_lock_init(&lp->lock);
787
788 /* Now, get the ethernet hardware address from
789 the EEPROM */
790 station_addr[0] = read_eeprom(ioaddr, 2, dev);
791
792 /* FIXME - find another way to know that we've found
793 * an Etherexpress 10
794 */
795 if (station_addr[0] == 0x0000 || station_addr[0] == 0xffff) {
796 lp->eepro = LAN595FX_10ISA;
797 lp->eeprom_reg = EEPROM_REG_10;
798 lp->xmt_lower_limit_reg = XMT_LOWER_LIMIT_REG_10;
799 lp->xmt_upper_limit_reg = XMT_UPPER_LIMIT_REG_10;
800 lp->xmt_bar = XMT_BAR_10;
801 station_addr[0] = read_eeprom(ioaddr, 2, dev);
802 }
803
804 /* get all words at once. will be used here and for ethtool */
805 for (i = 0; i < 8; i++) {
806 lp->word[i] = read_eeprom(ioaddr, i, dev);
807 }
808 station_addr[1] = lp->word[3];
809 station_addr[2] = lp->word[4];
810
811 if (!lp->eepro) {
812 if (lp->word[7] == ee_FX_INT2IRQ)
813 lp->eepro = 2;
814 else if (station_addr[2] == SA_ADDR1)
815 lp->eepro = 1;
816 }
817
818 /* Fill in the 'dev' fields. */
819 for (i=0; i < 6; i++)
820 dev->dev_addr[i] = ((unsigned char *) station_addr)[5-i];
821
822 /* RX buffer must be more than 3K and less than 29K */
823 if (dev->mem_end < 3072 || dev->mem_end > 29696)
824 lp->rcv_ram = RCV_DEFAULT_RAM;
825
826 /* calculate {xmt,rcv}_{lower,upper}_limit */
827 eepro_recalc(dev);
828
829 if (GetBit(lp->word[5], ee_BNC_TPE))
830 dev->if_port = BNC;
831 else
832 dev->if_port = TPE;
833
834 if (dev->irq < 2 && lp->eepro != 0) {
835 /* Mask off INT number */
836 int count = lp->word[1] & 7;
837 unsigned irqMask = lp->word[7];
Jeff Garzikd61780c2005-10-30 15:01:51 -0800838
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 while (count--)
840 irqMask &= irqMask - 1;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800841
Linus Torvalds1da177e2005-04-16 15:20:36 -0700842 count = ffs(irqMask);
Jeff Garzikd61780c2005-10-30 15:01:51 -0800843
Linus Torvalds1da177e2005-04-16 15:20:36 -0700844 if (count)
845 dev->irq = count - 1;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800846
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847 if (dev->irq < 2) {
848 printk(KERN_ERR " Duh! illegal interrupt vector stored in EEPROM.\n");
849 goto exit;
850 } else if (dev->irq == 2) {
851 dev->irq = 9;
852 }
853 }
Jeff Garzikd61780c2005-10-30 15:01:51 -0800854
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 dev->open = eepro_open;
856 dev->stop = eepro_close;
857 dev->hard_start_xmit = eepro_send_packet;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858 dev->set_multicast_list = &set_multicast_list;
859 dev->tx_timeout = eepro_tx_timeout;
860 dev->watchdog_timeo = TX_TIMEOUT;
861 dev->ethtool_ops = &eepro_ethtool_ops;
Jeff Garzikd61780c2005-10-30 15:01:51 -0800862
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863 /* print boot time info */
864 eepro_print_info(dev);
865
866 /* reset 82595 */
867 eepro_reset(ioaddr);
b1fc5502005-05-12 20:11:55 -0400868
869 err = register_netdev(dev);
870 if (err)
871 goto err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872 return 0;
873exit:
b1fc5502005-05-12 20:11:55 -0400874 err = -ENODEV;
875err:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876 release_region(dev->base_addr, EEPRO_IO_EXTENT);
b1fc5502005-05-12 20:11:55 -0400877 return err;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700878}
879
880/* Open/initialize the board. This is called (in the current kernel)
881 sometime after booting when the 'ifconfig' program is run.
882
883 This routine should set everything up anew at each open, even
884 registers that "should" only need to be set once at boot, so that
885 there is non-reboot way to recover if something goes wrong.
886 */
887
888static char irqrmap[] = {-1,-1,0,1,-1,2,-1,-1,-1,0,3,4,-1,-1,-1,-1};
889static char irqrmap2[] = {-1,-1,4,0,1,2,-1,3,-1,4,5,6,7,-1,-1,-1};
890static int eepro_grab_irq(struct net_device *dev)
891{
892 int irqlist[] = { 3, 4, 5, 7, 9, 10, 11, 12, 0 };
893 int *irqp = irqlist, temp_reg, ioaddr = dev->base_addr;
894
895 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
896
897 /* Enable the interrupt line. */
898 eepro_en_intline(ioaddr);
899
900 /* be CAREFUL, BANK 0 now */
901 eepro_sw2bank0(ioaddr);
902
903 /* clear all interrupts */
904 eepro_clear_int(ioaddr);
905
906 /* Let EXEC event to interrupt */
907 eepro_en_intexec(ioaddr);
908
909 do {
910 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
911
912 temp_reg = inb(ioaddr + INT_NO_REG);
913 outb((temp_reg & 0xf8) | irqrmap[*irqp], ioaddr + INT_NO_REG);
914
915 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
916
Thomas Gleixner1fb9df52006-07-01 19:29:39 -0700917 if (request_irq (*irqp, NULL, IRQF_SHARED, "bogus", dev) != EBUSY) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700918 unsigned long irq_mask;
919 /* Twinkle the interrupt, and check if it's seen */
920 irq_mask = probe_irq_on();
921
922 eepro_diag(ioaddr); /* RESET the 82595 */
923 mdelay(20);
924
925 if (*irqp == probe_irq_off(irq_mask)) /* It's a good IRQ line */
926 break;
927
928 /* clear all interrupts */
929 eepro_clear_int(ioaddr);
930 }
931 } while (*++irqp);
932
933 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
934
935 /* Disable the physical interrupt line. */
936 eepro_dis_intline(ioaddr);
937
938 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
939
940 /* Mask all the interrupts. */
941 eepro_dis_int(ioaddr);
942
943 /* clear all interrupts */
944 eepro_clear_int(ioaddr);
945
946 return dev->irq;
947}
948
949static int eepro_open(struct net_device *dev)
950{
951 unsigned short temp_reg, old8, old9;
952 int irqMask;
953 int i, ioaddr = dev->base_addr;
954 struct eepro_local *lp = netdev_priv(dev);
955
956 if (net_debug > 3)
957 printk(KERN_DEBUG "%s: entering eepro_open routine.\n", dev->name);
958
959 irqMask = lp->word[7];
960
961 if (lp->eepro == LAN595FX_10ISA) {
962 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 3;\n");
963 }
964 else if (irqMask == ee_FX_INT2IRQ) /* INT to IRQ Mask */
965 {
966 lp->eepro = 2; /* Yes, an Intel EtherExpress Pro/10+ */
967 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 2;\n");
968 }
969
970 else if ((dev->dev_addr[0] == SA_ADDR0 &&
971 dev->dev_addr[1] == SA_ADDR1 &&
972 dev->dev_addr[2] == SA_ADDR2))
973 {
974 lp->eepro = 1;
975 if (net_debug > 3) printk(KERN_DEBUG "p->eepro = 1;\n");
976 } /* Yes, an Intel EtherExpress Pro/10 */
977
978 else lp->eepro = 0; /* No, it is a generic 82585 lan card */
979
980 /* Get the interrupt vector for the 82595 */
981 if (dev->irq < 2 && eepro_grab_irq(dev) == 0) {
982 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
983 return -EAGAIN;
984 }
985
986 if (request_irq(dev->irq , &eepro_interrupt, 0, dev->name, dev)) {
987 printk(KERN_ERR "%s: unable to get IRQ %d.\n", dev->name, dev->irq);
988 return -EAGAIN;
989 }
990
Linus Torvalds1da177e2005-04-16 15:20:36 -0700991 /* Initialize the 82595. */
992
993 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
994 temp_reg = inb(ioaddr + lp->eeprom_reg);
995
996 lp->stepping = temp_reg >> 5; /* Get the stepping number of the 595 */
997
998 if (net_debug > 3)
999 printk(KERN_DEBUG "The stepping of the 82595 is %d\n", lp->stepping);
1000
1001 if (temp_reg & 0x10) /* Check the TurnOff Enable bit */
1002 outb(temp_reg & 0xef, ioaddr + lp->eeprom_reg);
1003 for (i=0; i < 6; i++)
1004 outb(dev->dev_addr[i] , ioaddr + I_ADD_REG0 + i);
1005
1006 temp_reg = inb(ioaddr + REG1); /* Setup Transmit Chaining */
1007 outb(temp_reg | XMT_Chain_Int | XMT_Chain_ErrStop /* and discard bad RCV frames */
1008 | RCV_Discard_BadFrame, ioaddr + REG1);
1009
1010 temp_reg = inb(ioaddr + REG2); /* Match broadcast */
1011 outb(temp_reg | 0x14, ioaddr + REG2);
1012
1013 temp_reg = inb(ioaddr + REG3);
1014 outb(temp_reg & 0x3f, ioaddr + REG3); /* clear test mode */
1015
1016 /* Set the receiving mode */
1017 eepro_sw2bank1(ioaddr); /* be CAREFUL, BANK 1 now */
1018
1019 /* Set the interrupt vector */
1020 temp_reg = inb(ioaddr + INT_NO_REG);
1021 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1022 outb((temp_reg & 0xf8) | irqrmap2[dev->irq], ioaddr + INT_NO_REG);
1023 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1024
1025
1026 temp_reg = inb(ioaddr + INT_NO_REG);
1027 if (lp->eepro == LAN595FX || lp->eepro == LAN595FX_10ISA)
1028 outb((temp_reg & 0xf0) | irqrmap2[dev->irq] | 0x08,ioaddr+INT_NO_REG);
1029 else outb((temp_reg & 0xf8) | irqrmap[dev->irq], ioaddr + INT_NO_REG);
1030
1031 if (net_debug > 3)
1032 printk(KERN_DEBUG "eepro_open: content of INT Reg is %x\n", temp_reg);
1033
1034
1035 /* Initialize the RCV and XMT upper and lower limits */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001036 outb(lp->rcv_lower_limit >> 8, ioaddr + RCV_LOWER_LIMIT_REG);
1037 outb(lp->rcv_upper_limit >> 8, ioaddr + RCV_UPPER_LIMIT_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001038 outb(lp->xmt_lower_limit >> 8, ioaddr + lp->xmt_lower_limit_reg);
1039 outb(lp->xmt_upper_limit >> 8, ioaddr + lp->xmt_upper_limit_reg);
1040
1041 /* Enable the interrupt line. */
1042 eepro_en_intline(ioaddr);
1043
1044 /* Switch back to Bank 0 */
1045 eepro_sw2bank0(ioaddr);
1046
1047 /* Let RX and TX events to interrupt */
1048 eepro_en_int(ioaddr);
1049
1050 /* clear all interrupts */
1051 eepro_clear_int(ioaddr);
1052
1053 /* Initialize RCV */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001054 outw(lp->rcv_lower_limit, ioaddr + RCV_BAR);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001055 lp->rx_start = lp->rcv_lower_limit;
Jeff Garzikd61780c2005-10-30 15:01:51 -08001056 outw(lp->rcv_upper_limit | 0xfe, ioaddr + RCV_STOP);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001057
1058 /* Initialize XMT */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001059 outw(lp->xmt_lower_limit, ioaddr + lp->xmt_bar);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1061 lp->tx_last = 0;
1062
1063 /* Check for the i82595TX and i82595FX */
1064 old8 = inb(ioaddr + 8);
1065 outb(~old8, ioaddr + 8);
1066
1067 if ((temp_reg = inb(ioaddr + 8)) == old8) {
1068 if (net_debug > 3)
1069 printk(KERN_DEBUG "i82595 detected!\n");
1070 lp->version = LAN595;
1071 }
1072 else {
1073 lp->version = LAN595TX;
1074 outb(old8, ioaddr + 8);
1075 old9 = inb(ioaddr + 9);
1076
1077 if (irqMask==ee_FX_INT2IRQ) {
1078 if (net_debug > 3) {
1079 printk(KERN_DEBUG "IrqMask: %#x\n",irqMask);
1080 printk(KERN_DEBUG "i82595FX detected!\n");
1081 }
1082 lp->version = LAN595FX;
1083 outb(old9, ioaddr + 9);
1084 if (dev->if_port != TPE) { /* Hopefully, this will fix the
1085 problem of using Pentiums and
1086 pro/10 w/ BNC. */
1087 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1088 temp_reg = inb(ioaddr + REG13);
1089 /* disable the full duplex mode since it is not
1090 applicable with the 10Base2 cable. */
1091 outb(temp_reg & ~(FDX | A_N_ENABLE), REG13);
1092 eepro_sw2bank0(ioaddr); /* be CAREFUL, BANK 0 now */
1093 }
1094 }
1095 else if (net_debug > 3) {
1096 printk(KERN_DEBUG "temp_reg: %#x ~old9: %#x\n",temp_reg,((~old9)&0xff));
1097 printk(KERN_DEBUG "i82595TX detected!\n");
1098 }
1099 }
1100
1101 eepro_sel_reset(ioaddr);
1102
1103 netif_start_queue(dev);
1104
1105 if (net_debug > 3)
1106 printk(KERN_DEBUG "%s: exiting eepro_open routine.\n", dev->name);
1107
1108 /* enabling rx */
1109 eepro_en_rx(ioaddr);
1110
1111 return 0;
1112}
1113
1114static void eepro_tx_timeout (struct net_device *dev)
1115{
1116 struct eepro_local *lp = netdev_priv(dev);
1117 int ioaddr = dev->base_addr;
1118
1119 /* if (net_debug > 1) */
1120 printk (KERN_ERR "%s: transmit timed out, %s?\n", dev->name,
1121 "network cable problem");
1122 /* This is not a duplicate. One message for the console,
Michael Opdenacker59c51592007-05-09 08:57:56 +02001123 one for the log file */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124 printk (KERN_DEBUG "%s: transmit timed out, %s?\n", dev->name,
1125 "network cable problem");
1126 eepro_complete_selreset(ioaddr);
1127}
1128
1129
1130static int eepro_send_packet(struct sk_buff *skb, struct net_device *dev)
1131{
1132 struct eepro_local *lp = netdev_priv(dev);
1133 unsigned long flags;
1134 int ioaddr = dev->base_addr;
1135 short length = skb->len;
1136
1137 if (net_debug > 5)
1138 printk(KERN_DEBUG "%s: entering eepro_send_packet routine.\n", dev->name);
1139
1140 if (length < ETH_ZLEN) {
Herbert Xu5b057c62006-06-23 02:06:41 -07001141 if (skb_padto(skb, ETH_ZLEN))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001142 return 0;
1143 length = ETH_ZLEN;
1144 }
1145 netif_stop_queue (dev);
1146
1147 eepro_dis_int(ioaddr);
1148 spin_lock_irqsave(&lp->lock, flags);
1149
1150 {
1151 unsigned char *buf = skb->data;
1152
1153 if (hardware_send_packet(dev, buf, length))
1154 /* we won't wake queue here because we're out of space */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001155 dev->stats.tx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 else {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001157 dev->stats.tx_bytes+=skb->len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 dev->trans_start = jiffies;
1159 netif_wake_queue(dev);
1160 }
1161
1162 }
1163
1164 dev_kfree_skb (skb);
1165
1166 /* You might need to clean up and record Tx statistics here. */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001167 /* dev->stats.tx_aborted_errors++; */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168
1169 if (net_debug > 5)
1170 printk(KERN_DEBUG "%s: exiting eepro_send_packet routine.\n", dev->name);
1171
1172 eepro_en_int(ioaddr);
1173 spin_unlock_irqrestore(&lp->lock, flags);
1174
1175 return 0;
1176}
1177
1178
1179/* The typical workload of the driver:
1180 Handle the network interface interrupts. */
1181
1182static irqreturn_t
David Howells7d12e782006-10-05 14:55:46 +01001183eepro_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001184{
Jeff Garzikc31f28e2006-10-06 14:56:04 -04001185 struct net_device *dev = dev_id;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 struct eepro_local *lp;
1187 int ioaddr, status, boguscount = 20;
1188 int handled = 0;
1189
Linus Torvalds1da177e2005-04-16 15:20:36 -07001190 lp = netdev_priv(dev);
1191
1192 spin_lock(&lp->lock);
1193
1194 if (net_debug > 5)
1195 printk(KERN_DEBUG "%s: entering eepro_interrupt routine.\n", dev->name);
1196
1197 ioaddr = dev->base_addr;
1198
1199 while (((status = inb(ioaddr + STATUS_REG)) & (RX_INT|TX_INT)) && (boguscount--))
1200 {
1201 handled = 1;
1202 if (status & RX_INT) {
1203 if (net_debug > 4)
1204 printk(KERN_DEBUG "%s: packet received interrupt.\n", dev->name);
1205
1206 eepro_dis_int(ioaddr);
1207
1208 /* Get the received packets */
1209 eepro_ack_rx(ioaddr);
1210 eepro_rx(dev);
1211
1212 eepro_en_int(ioaddr);
1213 }
1214 if (status & TX_INT) {
1215 if (net_debug > 4)
1216 printk(KERN_DEBUG "%s: packet transmit interrupt.\n", dev->name);
1217
1218
1219 eepro_dis_int(ioaddr);
1220
1221 /* Process the status of transmitted packets */
1222 eepro_ack_tx(ioaddr);
1223 eepro_transmit_interrupt(dev);
1224
1225 eepro_en_int(ioaddr);
1226 }
1227 }
1228
1229 if (net_debug > 5)
1230 printk(KERN_DEBUG "%s: exiting eepro_interrupt routine.\n", dev->name);
1231
1232 spin_unlock(&lp->lock);
1233 return IRQ_RETVAL(handled);
1234}
1235
1236static int eepro_close(struct net_device *dev)
1237{
1238 struct eepro_local *lp = netdev_priv(dev);
1239 int ioaddr = dev->base_addr;
1240 short temp_reg;
1241
1242 netif_stop_queue(dev);
1243
1244 eepro_sw2bank1(ioaddr); /* Switch back to Bank 1 */
1245
1246 /* Disable the physical interrupt line. */
1247 temp_reg = inb(ioaddr + REG1);
1248 outb(temp_reg & 0x7f, ioaddr + REG1);
1249
1250 eepro_sw2bank0(ioaddr); /* Switch back to Bank 0 */
1251
1252 /* Flush the Tx and disable Rx. */
1253 outb(STOP_RCV_CMD, ioaddr);
1254 lp->tx_start = lp->tx_end = lp->xmt_lower_limit;
1255 lp->tx_last = 0;
1256
1257 /* Mask all the interrupts. */
1258 eepro_dis_int(ioaddr);
1259
1260 /* clear all interrupts */
1261 eepro_clear_int(ioaddr);
1262
1263 /* Reset the 82595 */
1264 eepro_reset(ioaddr);
1265
1266 /* release the interrupt */
1267 free_irq(dev->irq, dev);
1268
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 /* Update the statistics here. What statistics? */
1270
1271 return 0;
1272}
1273
Linus Torvalds1da177e2005-04-16 15:20:36 -07001274/* Set or clear the multicast filter for this adaptor.
1275 */
1276static void
1277set_multicast_list(struct net_device *dev)
1278{
1279 struct eepro_local *lp = netdev_priv(dev);
1280 short ioaddr = dev->base_addr;
1281 unsigned short mode;
1282 struct dev_mc_list *dmi=dev->mc_list;
1283
1284 if (dev->flags&(IFF_ALLMULTI|IFF_PROMISC) || dev->mc_count > 63)
1285 {
1286 /*
1287 * We must make the kernel realise we had to move
1288 * into promisc mode or we start all out war on
1289 * the cable. If it was a promisc request the
1290 * flag is already set. If not we assert it.
1291 */
1292 dev->flags|=IFF_PROMISC;
1293
1294 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1295 mode = inb(ioaddr + REG2);
1296 outb(mode | PRMSC_Mode, ioaddr + REG2);
1297 mode = inb(ioaddr + REG3);
1298 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1299 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001300 }
1301
1302 else if (dev->mc_count==0 )
1303 {
1304 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1305 mode = inb(ioaddr + REG2);
1306 outb(mode & 0xd6, ioaddr + REG2); /* Turn off Multi-IA and PRMSC_Mode bits */
1307 mode = inb(ioaddr + REG3);
1308 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1309 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1310 }
1311
1312 else
1313 {
1314 unsigned short status, *eaddrs;
1315 int i, boguscount = 0;
1316
1317 /* Disable RX and TX interrupts. Necessary to avoid
1318 corruption of the HOST_ADDRESS_REG by interrupt
1319 service routines. */
1320 eepro_dis_int(ioaddr);
1321
1322 eepro_sw2bank2(ioaddr); /* be CAREFUL, BANK 2 now */
1323 mode = inb(ioaddr + REG2);
1324 outb(mode | Multi_IA, ioaddr + REG2);
1325 mode = inb(ioaddr + REG3);
1326 outb(mode, ioaddr + REG3); /* writing reg. 3 to complete the update */
1327 eepro_sw2bank0(ioaddr); /* Return to BANK 0 now */
1328 outw(lp->tx_end, ioaddr + HOST_ADDRESS_REG);
1329 outw(MC_SETUP, ioaddr + IO_PORT);
1330 outw(0, ioaddr + IO_PORT);
1331 outw(0, ioaddr + IO_PORT);
1332 outw(6*(dev->mc_count + 1), ioaddr + IO_PORT);
1333
1334 for (i = 0; i < dev->mc_count; i++)
1335 {
1336 eaddrs=(unsigned short *)dmi->dmi_addr;
1337 dmi=dmi->next;
1338 outw(*eaddrs++, ioaddr + IO_PORT);
1339 outw(*eaddrs++, ioaddr + IO_PORT);
1340 outw(*eaddrs++, ioaddr + IO_PORT);
1341 }
1342
1343 eaddrs = (unsigned short *) dev->dev_addr;
1344 outw(eaddrs[0], ioaddr + IO_PORT);
1345 outw(eaddrs[1], ioaddr + IO_PORT);
1346 outw(eaddrs[2], ioaddr + IO_PORT);
1347 outw(lp->tx_end, ioaddr + lp->xmt_bar);
1348 outb(MC_SETUP, ioaddr);
1349
1350 /* Update the transmit queue */
1351 i = lp->tx_end + XMT_HEADER + 6*(dev->mc_count + 1);
1352
1353 if (lp->tx_start != lp->tx_end)
1354 {
1355 /* update the next address and the chain bit in the
1356 last packet */
1357 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1358 outw(i, ioaddr + IO_PORT);
1359 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1360 status = inw(ioaddr + IO_PORT);
1361 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1362 lp->tx_end = i ;
1363 }
1364 else {
1365 lp->tx_start = lp->tx_end = i ;
1366 }
1367
1368 /* Acknowledge that the MC setup is done */
1369 do { /* We should be doing this in the eepro_interrupt()! */
1370 SLOW_DOWN;
1371 SLOW_DOWN;
1372 if (inb(ioaddr + STATUS_REG) & 0x08)
1373 {
1374 i = inb(ioaddr);
1375 outb(0x08, ioaddr + STATUS_REG);
1376
1377 if (i & 0x20) { /* command ABORTed */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001378 printk(KERN_NOTICE "%s: multicast setup failed.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 dev->name);
1380 break;
1381 } else if ((i & 0x0f) == 0x03) { /* MC-Done */
1382 printk(KERN_DEBUG "%s: set Rx mode to %d address%s.\n",
1383 dev->name, dev->mc_count,
1384 dev->mc_count > 1 ? "es":"");
1385 break;
1386 }
1387 }
1388 } while (++boguscount < 100);
1389
1390 /* Re-enable RX and TX interrupts */
1391 eepro_en_int(ioaddr);
1392 }
1393 if (lp->eepro == LAN595FX_10ISA) {
1394 eepro_complete_selreset(ioaddr);
1395 }
1396 else
1397 eepro_en_rx(ioaddr);
1398}
1399
1400/* The horrible routine to read a word from the serial EEPROM. */
1401/* IMPORTANT - the 82595 will be set to Bank 0 after the eeprom is read */
1402
1403/* The delay between EEPROM clock transitions. */
1404#define eeprom_delay() { udelay(40); }
1405#define EE_READ_CMD (6 << 6)
1406
1407int
1408read_eeprom(int ioaddr, int location, struct net_device *dev)
1409{
1410 int i;
1411 unsigned short retval = 0;
1412 struct eepro_local *lp = netdev_priv(dev);
1413 short ee_addr = ioaddr + lp->eeprom_reg;
1414 int read_cmd = location | EE_READ_CMD;
1415 short ctrl_val = EECS ;
1416
1417 /* XXXX - black magic */
1418 eepro_sw2bank1(ioaddr);
1419 outb(0x00, ioaddr + STATUS_REG);
1420 /* XXXX - black magic */
1421
1422 eepro_sw2bank2(ioaddr);
1423 outb(ctrl_val, ee_addr);
1424
1425 /* Shift the read command bits out. */
1426 for (i = 8; i >= 0; i--) {
1427 short outval = (read_cmd & (1 << i)) ? ctrl_val | EEDI
1428 : ctrl_val;
1429 outb(outval, ee_addr);
1430 outb(outval | EESK, ee_addr); /* EEPROM clock tick. */
1431 eeprom_delay();
1432 outb(outval, ee_addr); /* Finish EEPROM a clock tick. */
1433 eeprom_delay();
1434 }
1435 outb(ctrl_val, ee_addr);
1436
1437 for (i = 16; i > 0; i--) {
1438 outb(ctrl_val | EESK, ee_addr); eeprom_delay();
1439 retval = (retval << 1) | ((inb(ee_addr) & EEDO) ? 1 : 0);
1440 outb(ctrl_val, ee_addr); eeprom_delay();
1441 }
1442
1443 /* Terminate the EEPROM access. */
1444 ctrl_val &= ~EECS;
1445 outb(ctrl_val | EESK, ee_addr);
1446 eeprom_delay();
1447 outb(ctrl_val, ee_addr);
1448 eeprom_delay();
1449 eepro_sw2bank0(ioaddr);
1450 return retval;
1451}
1452
1453static int
1454hardware_send_packet(struct net_device *dev, void *buf, short length)
1455{
1456 struct eepro_local *lp = netdev_priv(dev);
1457 short ioaddr = dev->base_addr;
1458 unsigned status, tx_available, last, end;
1459
1460 if (net_debug > 5)
1461 printk(KERN_DEBUG "%s: entering hardware_send_packet routine.\n", dev->name);
1462
1463 /* determine how much of the transmit buffer space is available */
1464 if (lp->tx_end > lp->tx_start)
1465 tx_available = lp->xmt_ram - (lp->tx_end - lp->tx_start);
1466 else if (lp->tx_end < lp->tx_start)
1467 tx_available = lp->tx_start - lp->tx_end;
1468 else tx_available = lp->xmt_ram;
1469
1470 if (((((length + 3) >> 1) << 1) + 2*XMT_HEADER) >= tx_available) {
1471 /* No space available ??? */
1472 return 1;
1473 }
1474
1475 last = lp->tx_end;
1476 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1477
1478 if (end >= lp->xmt_upper_limit + 2) { /* the transmit buffer is wrapped around */
Jeff Garzikd61780c2005-10-30 15:01:51 -08001479 if ((lp->xmt_upper_limit + 2 - last) <= XMT_HEADER) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001480 /* Arrrr!!!, must keep the xmt header together,
1481 several days were lost to chase this one down. */
1482 last = lp->xmt_lower_limit;
1483 end = last + (((length + 3) >> 1) << 1) + XMT_HEADER;
1484 }
1485 else end = lp->xmt_lower_limit + (end -
1486 lp->xmt_upper_limit + 2);
1487 }
1488
1489 outw(last, ioaddr + HOST_ADDRESS_REG);
1490 outw(XMT_CMD, ioaddr + IO_PORT);
1491 outw(0, ioaddr + IO_PORT);
1492 outw(end, ioaddr + IO_PORT);
1493 outw(length, ioaddr + IO_PORT);
1494
1495 if (lp->version == LAN595)
1496 outsw(ioaddr + IO_PORT, buf, (length + 3) >> 1);
1497 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1498 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1499 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1500 outsl(ioaddr + IO_PORT_32_BIT, buf, (length + 3) >> 2);
1501 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1502 }
1503
1504 /* A dummy read to flush the DRAM write pipeline */
1505 status = inw(ioaddr + IO_PORT);
1506
1507 if (lp->tx_start == lp->tx_end) {
1508 outw(last, ioaddr + lp->xmt_bar);
1509 outb(XMT_CMD, ioaddr);
1510 lp->tx_start = last; /* I don't like to change tx_start here */
1511 }
1512 else {
1513 /* update the next address and the chain bit in the
1514 last packet */
1515
1516 if (lp->tx_end != last) {
1517 outw(lp->tx_last + XMT_CHAIN, ioaddr + HOST_ADDRESS_REG);
1518 outw(last, ioaddr + IO_PORT);
1519 }
1520
1521 outw(lp->tx_last + XMT_COUNT, ioaddr + HOST_ADDRESS_REG);
1522 status = inw(ioaddr + IO_PORT);
1523 outw(status | CHAIN_BIT, ioaddr + IO_PORT);
1524
1525 /* Continue the transmit command */
1526 outb(RESUME_XMT_CMD, ioaddr);
1527 }
1528
1529 lp->tx_last = last;
1530 lp->tx_end = end;
1531
1532 if (net_debug > 5)
1533 printk(KERN_DEBUG "%s: exiting hardware_send_packet routine.\n", dev->name);
1534
1535 return 0;
1536}
1537
1538static void
1539eepro_rx(struct net_device *dev)
1540{
1541 struct eepro_local *lp = netdev_priv(dev);
1542 short ioaddr = dev->base_addr;
1543 short boguscount = 20;
1544 short rcv_car = lp->rx_start;
1545 unsigned rcv_event, rcv_status, rcv_next_frame, rcv_size;
1546
1547 if (net_debug > 5)
1548 printk(KERN_DEBUG "%s: entering eepro_rx routine.\n", dev->name);
1549
1550 /* Set the read pointer to the start of the RCV */
1551 outw(rcv_car, ioaddr + HOST_ADDRESS_REG);
1552
1553 rcv_event = inw(ioaddr + IO_PORT);
1554
1555 while (rcv_event == RCV_DONE) {
1556
1557 rcv_status = inw(ioaddr + IO_PORT);
1558 rcv_next_frame = inw(ioaddr + IO_PORT);
1559 rcv_size = inw(ioaddr + IO_PORT);
1560
1561 if ((rcv_status & (RX_OK | RX_ERROR)) == RX_OK) {
1562
1563 /* Malloc up new buffer. */
1564 struct sk_buff *skb;
1565
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001566 dev->stats.rx_bytes+=rcv_size;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 rcv_size &= 0x3fff;
1568 skb = dev_alloc_skb(rcv_size+5);
1569 if (skb == NULL) {
1570 printk(KERN_NOTICE "%s: Memory squeeze, dropping packet.\n", dev->name);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001571 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001572 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1573 lp->rx_start = rcv_next_frame;
1574 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1575
1576 break;
1577 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001578 skb_reserve(skb,2);
1579
1580 if (lp->version == LAN595)
1581 insw(ioaddr+IO_PORT, skb_put(skb,rcv_size), (rcv_size + 3) >> 1);
1582 else { /* LAN595TX or LAN595FX, capable of 32-bit I/O processing */
1583 unsigned short temp = inb(ioaddr + INT_MASK_REG);
1584 outb(temp | IO_32_BIT, ioaddr + INT_MASK_REG);
1585 insl(ioaddr+IO_PORT_32_BIT, skb_put(skb,rcv_size),
1586 (rcv_size + 3) >> 2);
1587 outb(temp & ~(IO_32_BIT), ioaddr + INT_MASK_REG);
1588 }
1589
1590 skb->protocol = eth_type_trans(skb,dev);
1591 netif_rx(skb);
1592 dev->last_rx = jiffies;
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001593 dev->stats.rx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001594 }
1595
1596 else { /* Not sure will ever reach here,
1597 I set the 595 to discard bad received frames */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001598 dev->stats.rx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001599
1600 if (rcv_status & 0x0100)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001601 dev->stats.rx_over_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602
1603 else if (rcv_status & 0x0400)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001604 dev->stats.rx_frame_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001605
1606 else if (rcv_status & 0x0800)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001607 dev->stats.rx_crc_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001608
Jeff Garzikd61780c2005-10-30 15:01:51 -08001609 printk(KERN_DEBUG "%s: event = %#x, status = %#x, next = %#x, size = %#x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610 dev->name, rcv_event, rcv_status, rcv_next_frame, rcv_size);
1611 }
1612
1613 if (rcv_status & 0x1000)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001614 dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615
1616 rcv_car = lp->rx_start + RCV_HEADER + rcv_size;
1617 lp->rx_start = rcv_next_frame;
1618
1619 if (--boguscount == 0)
1620 break;
1621
1622 outw(rcv_next_frame, ioaddr + HOST_ADDRESS_REG);
1623 rcv_event = inw(ioaddr + IO_PORT);
1624
1625 }
1626 if (rcv_car == 0)
1627 rcv_car = lp->rcv_upper_limit | 0xff;
1628
1629 outw(rcv_car - 1, ioaddr + RCV_STOP);
1630
1631 if (net_debug > 5)
1632 printk(KERN_DEBUG "%s: exiting eepro_rx routine.\n", dev->name);
1633}
1634
1635static void
1636eepro_transmit_interrupt(struct net_device *dev)
1637{
1638 struct eepro_local *lp = netdev_priv(dev);
1639 short ioaddr = dev->base_addr;
Jeff Garzikd61780c2005-10-30 15:01:51 -08001640 short boguscount = 25;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001641 short xmt_status;
1642
Jeff Garzikd61780c2005-10-30 15:01:51 -08001643 while ((lp->tx_start != lp->tx_end) && boguscount--) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001644
1645 outw(lp->tx_start, ioaddr + HOST_ADDRESS_REG);
1646 xmt_status = inw(ioaddr+IO_PORT);
1647
1648 if (!(xmt_status & TX_DONE_BIT))
1649 break;
1650
1651 xmt_status = inw(ioaddr+IO_PORT);
1652 lp->tx_start = inw(ioaddr+IO_PORT);
1653
1654 netif_wake_queue (dev);
1655
1656 if (xmt_status & TX_OK)
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001657 dev->stats.tx_packets++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001658 else {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001659 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660 if (xmt_status & 0x0400) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001661 dev->stats.tx_carrier_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001662 printk(KERN_DEBUG "%s: carrier error\n",
1663 dev->name);
1664 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1665 dev->name, xmt_status);
1666 }
1667 else {
1668 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1669 dev->name, xmt_status);
1670 printk(KERN_DEBUG "%s: XMT status = %#x\n",
1671 dev->name, xmt_status);
1672 }
1673 }
1674 if (xmt_status & 0x000f) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001675 dev->stats.collisions += (xmt_status & 0x000f);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001676 }
1677
1678 if ((xmt_status & 0x0040) == 0x0) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001679 dev->stats.tx_heartbeat_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680 }
1681 }
1682}
1683
1684static int eepro_ethtool_get_settings(struct net_device *dev,
1685 struct ethtool_cmd *cmd)
1686{
1687 struct eepro_local *lp = (struct eepro_local *)dev->priv;
1688
Jeff Garzikd61780c2005-10-30 15:01:51 -08001689 cmd->supported = SUPPORTED_10baseT_Half |
Linus Torvalds1da177e2005-04-16 15:20:36 -07001690 SUPPORTED_10baseT_Full |
1691 SUPPORTED_Autoneg;
1692 cmd->advertising = ADVERTISED_10baseT_Half |
1693 ADVERTISED_10baseT_Full |
1694 ADVERTISED_Autoneg;
1695
1696 if (GetBit(lp->word[5], ee_PortTPE)) {
1697 cmd->supported |= SUPPORTED_TP;
1698 cmd->advertising |= ADVERTISED_TP;
1699 }
1700 if (GetBit(lp->word[5], ee_PortBNC)) {
1701 cmd->supported |= SUPPORTED_BNC;
1702 cmd->advertising |= ADVERTISED_BNC;
1703 }
1704 if (GetBit(lp->word[5], ee_PortAUI)) {
1705 cmd->supported |= SUPPORTED_AUI;
1706 cmd->advertising |= ADVERTISED_AUI;
1707 }
1708
1709 cmd->speed = SPEED_10;
1710
1711 if (dev->if_port == TPE && lp->word[1] & ee_Duplex) {
1712 cmd->duplex = DUPLEX_FULL;
1713 }
1714 else {
1715 cmd->duplex = DUPLEX_HALF;
1716 }
1717
1718 cmd->port = dev->if_port;
1719 cmd->phy_address = dev->base_addr;
1720 cmd->transceiver = XCVR_INTERNAL;
1721
1722 if (lp->word[0] & ee_AutoNeg) {
1723 cmd->autoneg = 1;
1724 }
1725
1726 return 0;
1727}
1728
1729static void eepro_ethtool_get_drvinfo(struct net_device *dev,
1730 struct ethtool_drvinfo *drvinfo)
1731{
1732 strcpy(drvinfo->driver, DRV_NAME);
1733 strcpy(drvinfo->version, DRV_VERSION);
1734 sprintf(drvinfo->bus_info, "ISA 0x%lx", dev->base_addr);
1735}
1736
Jeff Garzik7282d492006-09-13 14:30:00 -04001737static const struct ethtool_ops eepro_ethtool_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 .get_settings = eepro_ethtool_get_settings,
1739 .get_drvinfo = eepro_ethtool_get_drvinfo,
1740};
1741
1742#ifdef MODULE
1743
1744#define MAX_EEPRO 8
1745static struct net_device *dev_eepro[MAX_EEPRO];
1746
1747static int io[MAX_EEPRO] = {
1748 [0 ... MAX_EEPRO-1] = -1
1749};
1750static int irq[MAX_EEPRO];
1751static int mem[MAX_EEPRO] = { /* Size of the rx buffer in KB */
1752 [0 ... MAX_EEPRO-1] = RCV_DEFAULT_RAM/1024
1753};
1754static int autodetect;
1755
1756static int n_eepro;
1757/* For linux 2.1.xx */
1758
1759MODULE_AUTHOR("Pascal Dupuis and others");
1760MODULE_DESCRIPTION("Intel i82595 ISA EtherExpressPro10/10+ driver");
1761MODULE_LICENSE("GPL");
1762
Florin Malitaa1bfcd92005-10-28 15:14:46 -07001763module_param_array(io, int, NULL, 0);
1764module_param_array(irq, int, NULL, 0);
1765module_param_array(mem, int, NULL, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766module_param(autodetect, int, 0);
1767MODULE_PARM_DESC(io, "EtherExpress Pro/10 I/O base addres(es)");
1768MODULE_PARM_DESC(irq, "EtherExpress Pro/10 IRQ number(s)");
1769MODULE_PARM_DESC(mem, "EtherExpress Pro/10 Rx buffer size(es) in kB (3-29)");
1770MODULE_PARM_DESC(autodetect, "EtherExpress Pro/10 force board(s) detection (0-1)");
1771
Andrew Morton02a32452006-08-14 23:00:01 -07001772int __init init_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773{
1774 struct net_device *dev;
1775 int i;
1776 if (io[0] == -1 && autodetect == 0) {
1777 printk(KERN_WARNING "eepro_init_module: Probe is very dangerous in ISA boards!\n");
1778 printk(KERN_WARNING "eepro_init_module: Please add \"autodetect=1\" to force probe\n");
1779 return -ENODEV;
1780 }
1781 else if (autodetect) {
1782 /* if autodetect is set then we must force detection */
1783 for (i = 0; i < MAX_EEPRO; i++) {
1784 io[i] = 0;
1785 }
1786
1787 printk(KERN_INFO "eepro_init_module: Auto-detecting boards (May God protect us...)\n");
1788 }
1789
1790 for (i = 0; io[i] != -1 && i < MAX_EEPRO; i++) {
1791 dev = alloc_etherdev(sizeof(struct eepro_local));
1792 if (!dev)
1793 break;
1794
1795 dev->mem_end = mem[i];
1796 dev->base_addr = io[i];
1797 dev->irq = irq[i];
1798
1799 if (do_eepro_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -04001800 dev_eepro[n_eepro++] = dev;
1801 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001802 }
1803 free_netdev(dev);
1804 break;
1805 }
1806
1807 if (n_eepro)
1808 printk(KERN_INFO "%s", version);
1809
1810 return n_eepro ? 0 : -ENODEV;
1811}
1812
Al Viroafc8eb42006-06-14 18:50:53 -04001813void __exit
Linus Torvalds1da177e2005-04-16 15:20:36 -07001814cleanup_module(void)
1815{
1816 int i;
1817
1818 for (i=0; i<n_eepro; i++) {
1819 struct net_device *dev = dev_eepro[i];
1820 unregister_netdev(dev);
1821 release_region(dev->base_addr, EEPRO_IO_EXTENT);
1822 free_netdev(dev);
1823 }
1824}
1825#endif /* MODULE */