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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* eth16i.c An ICL EtherTeam 16i and 32 EISA ethernet driver for Linux
Jeff Garzik6aa20a22006-09-13 13:24:59 -04002
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 Written 1994-1999 by Mika Kuoppala
Jeff Garzik6aa20a22006-09-13 13:24:59 -04004
Linus Torvalds1da177e2005-04-16 15:20:36 -07005 Copyright (C) 1994-1999 by Mika Kuoppala
6 Based on skeleton.c and heavily on at1700.c by Donald Becker
7
8 This software may be used and distributed according to the terms
9 of the GNU General Public License, incorporated herein by reference.
10
11 The author may be reached as miku@iki.fi
12
13 This driver supports following cards :
14 - ICL EtherTeam 16i
Jeff Garzik6aa20a22006-09-13 13:24:59 -040015 - ICL EtherTeam 32 EISA
Linus Torvalds1da177e2005-04-16 15:20:36 -070016 (Uses true 32 bit transfers rather than 16i compability mode)
17
18 Example Module usage:
19 insmod eth16i.o io=0x2a0 mediatype=bnc
20
21 mediatype can be one of the following: bnc,tp,dix,auto,eprom
22
23 'auto' will try to autoprobe mediatype.
24 'eprom' will use whatever type defined in eprom.
25
26 I have benchmarked driver with PII/300Mhz as a ftp client
27 and 486/33Mhz as a ftp server. Top speed was 1128.37 kilobytes/sec.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040028
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 Sources:
30 - skeleton.c a sample network driver core for linux,
31 written by Donald Becker <becker@scyld.com>
Jeff Garzik6aa20a22006-09-13 13:24:59 -040032 - at1700.c a driver for Allied Telesis AT1700, written
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 by Donald Becker.
34 - e16iSRV.asm a Netware 3.X Server Driver for ICL EtherTeam16i
35 written by Markku Viima
36 - The Fujitsu MB86965 databook.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040037
38 Author thanks following persons due to their valueble assistance:
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 Markku Viima (ICL)
Jeff Garzik6aa20a22006-09-13 13:24:59 -040040 Ari Valve (ICL)
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 Donald Becker
42 Kurt Huwig <kurt@huwig.de>
43
44 Revision history:
45
46 Version Date Description
Jeff Garzik6aa20a22006-09-13 13:24:59 -040047
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 0.01 15.12-94 Initial version (card detection)
49 0.02 23.01-95 Interrupt is now hooked correctly
50 0.03 01.02-95 Rewrote initialization part
51 0.04 07.02-95 Base skeleton done...
52 Made a few changes to signature checking
53 to make it a bit reliable.
54 - fixed bug in tx_buf mapping
55 - fixed bug in initialization (DLC_EN
56 wasn't enabled when initialization
57 was done.)
58 0.05 08.02-95 If there were more than one packet to send,
59 transmit was jammed due to invalid
60 register write...now fixed
Jeff Garzik6aa20a22006-09-13 13:24:59 -040061 0.06 19.02-95 Rewrote interrupt handling
Linus Torvalds1da177e2005-04-16 15:20:36 -070062 0.07 13.04-95 Wrote EEPROM read routines
63 Card configuration now set according to
64 data read from EEPROM
65 0.08 23.06-95 Wrote part that tries to probe used interface
66 port if AUTO is selected
67
68 0.09 01.09-95 Added module support
Jeff Garzik6aa20a22006-09-13 13:24:59 -040069
Linus Torvalds1da177e2005-04-16 15:20:36 -070070 0.10 04.09-95 Fixed receive packet allocation to work
71 with kernels > 1.3.x
Linus Torvalds1da177e2005-04-16 15:20:36 -070072
Jeff Garzik6aa20a22006-09-13 13:24:59 -040073 0.20 20.09-95 Added support for EtherTeam32 EISA
74
75 0.21 17.10-95 Removed the unnecessary extern
Linus Torvalds1da177e2005-04-16 15:20:36 -070076 init_etherdev() declaration. Some
77 other cleanups.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040078
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 0.22 22.02-96 Receive buffer was not flushed
80 correctly when faulty packet was
81 received. Now fixed.
82
Jeff Garzik6aa20a22006-09-13 13:24:59 -040083 0.23 26.02-96 Made resetting the adapter
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 more reliable.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040085
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 0.24 27.02-96 Rewrote faulty packet handling in eth16i_rx
87
88 0.25 22.05-96 kfree() was missing from cleanup_module.
89
Jeff Garzik6aa20a22006-09-13 13:24:59 -040090 0.26 11.06-96 Sometimes card was not found by
Linus Torvalds1da177e2005-04-16 15:20:36 -070091 check_signature(). Now made more reliable.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040092
93 0.27 23.06-96 Oops. 16 consecutive collisions halted
94 adapter. Now will try to retransmit
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 MAX_COL_16 times before finally giving up.
Jeff Garzik6aa20a22006-09-13 13:24:59 -040096
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 0.28 28.10-97 Added dev_id parameter (NULL) for free_irq
98
99 0.29 29.10-97 Multiple card support for module users
100
101 0.30 30.10-97 Fixed irq allocation bug.
102 (request_irq moved from probe to open)
103
104 0.30a 21.08-98 Card detection made more relaxed. Driver
105 had problems with some TCP/IP-PROM boots
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400106 to find the card. Suggested by
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 Kurt Huwig <kurt@huwig.de>
108
109 0.31 28.08-98 Media interface port can now be selected
110 with module parameters or kernel
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400111 boot parameters.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400113 0.32 31.08-98 IRQ was never freed if open/close
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 pair wasn't called. Now fixed.
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 0.33 10.09-98 When eth16i_open() was called after
117 eth16i_close() chip never recovered.
118 Now more shallow reset is made on
119 close.
120
121 0.34 29.06-99 Fixed one bad #ifdef.
122 Changed ioaddr -> io for consistency
123
124 0.35 01.07-99 transmit,-receive bytes were never
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400125 updated in stats.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126
127 Bugs:
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400128 In some cases the media interface autoprobing code doesn't find
129 the correct interface type. In this case you can
130 manually choose the interface type in DOS with E16IC.EXE which is
Linus Torvalds1da177e2005-04-16 15:20:36 -0700131 configuration software for EtherTeam16i and EtherTeam32 cards.
132 This is also true for IRQ setting. You cannot use module
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400133 parameter to configure IRQ of the card (yet).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135 To do:
136 - Real multicast support
137 - Rewrite the media interface autoprobing code. Its _horrible_ !
138 - Possibly merge all the MB86965 specific code to external
139 module for use by eth16.c and Donald's at1700.c
140 - IRQ configuration with module parameter. I will do
141 this when i will get enough info about setting
142 irq without configuration utility.
143*/
144
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400145static char *version =
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146 "eth16i.c: v0.35 01-Jul-1999 Mika Kuoppala (miku@iki.fi)\n";
147
148#include <linux/module.h>
149#include <linux/kernel.h>
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400150#include <linux/types.h>
151#include <linux/fcntl.h>
152#include <linux/interrupt.h>
153#include <linux/ioport.h>
154#include <linux/in.h>
155#include <linux/slab.h>
156#include <linux/string.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157#include <linux/errno.h>
158#include <linux/init.h>
159#include <linux/spinlock.h>
160#include <linux/netdevice.h>
161#include <linux/etherdevice.h>
162#include <linux/skbuff.h>
163#include <linux/bitops.h>
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800164#include <linux/jiffies.h>
Matthew Wilcox53d5ed62006-10-11 01:22:01 -0700165#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400167#include <asm/system.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168#include <asm/dma.h>
169
170
171
172/* Few macros */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400173#define BITSET(ioaddr, bnum) ((outb(((inb(ioaddr)) | (bnum)), ioaddr)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174#define BITCLR(ioaddr, bnum) ((outb(((inb(ioaddr)) & (~(bnum))), ioaddr)))
175
176/* This is the I/O address space for Etherteam 16i adapter. */
177#define ETH16I_IO_EXTENT 32
178
179/* Ticks before deciding that transmit has timed out */
180#define TX_TIMEOUT (400*HZ/1000)
181
182/* Maximum loop count when receiving packets */
183#define MAX_RX_LOOP 20
184
185/* Some interrupt masks */
186#define ETH16I_INTR_ON 0xef8a /* Higher is receive mask */
187#define ETH16I_INTR_OFF 0x0000
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189/* Buffers header status byte meanings */
190#define PKT_GOOD BIT(5)
191#define PKT_GOOD_RMT BIT(4)
192#define PKT_SHORT BIT(3)
193#define PKT_ALIGN_ERR BIT(2)
194#define PKT_CRC_ERR BIT(1)
195#define PKT_RX_BUF_OVERFLOW BIT(0)
196
197/* Transmit status register (DLCR0) */
198#define TX_STATUS_REG 0
199#define TX_DONE BIT(7)
200#define NET_BUSY BIT(6)
201#define TX_PKT_RCD BIT(5)
202#define CR_LOST BIT(4)
203#define TX_JABBER_ERR BIT(3)
204#define COLLISION BIT(2)
205#define COLLISIONS_16 BIT(1)
206
207/* Receive status register (DLCR1) */
208#define RX_STATUS_REG 1
209#define RX_PKT BIT(7) /* Packet received */
210#define BUS_RD_ERR BIT(6)
211#define SHORT_PKT_ERR BIT(3)
212#define ALIGN_ERR BIT(2)
213#define CRC_ERR BIT(1)
214#define RX_BUF_OVERFLOW BIT(0)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400215
Linus Torvalds1da177e2005-04-16 15:20:36 -0700216/* Transmit Interrupt Enable Register (DLCR2) */
217#define TX_INTR_REG 2
218#define TX_INTR_DONE BIT(7)
219#define TX_INTR_COL BIT(2)
220#define TX_INTR_16_COL BIT(1)
221
222/* Receive Interrupt Enable Register (DLCR3) */
223#define RX_INTR_REG 3
224#define RX_INTR_RECEIVE BIT(7)
225#define RX_INTR_SHORT_PKT BIT(3)
226#define RX_INTR_CRC_ERR BIT(1)
227#define RX_INTR_BUF_OVERFLOW BIT(0)
228
229/* Transmit Mode Register (DLCR4) */
230#define TRANSMIT_MODE_REG 4
231#define LOOPBACK_CONTROL BIT(1)
232#define CONTROL_OUTPUT BIT(2)
233
234/* Receive Mode Register (DLCR5) */
235#define RECEIVE_MODE_REG 5
236#define RX_BUFFER_EMPTY BIT(6)
237#define ACCEPT_BAD_PACKETS BIT(5)
238#define RECEIVE_SHORT_ADDR BIT(4)
239#define ACCEPT_SHORT_PACKETS BIT(3)
240#define REMOTE_RESET BIT(2)
241
242#define ADDRESS_FILTER_MODE BIT(1) | BIT(0)
243#define REJECT_ALL 0
244#define ACCEPT_ALL 3
245#define MODE_1 1 /* NODE ID, BC, MC, 2-24th bit */
246#define MODE_2 2 /* NODE ID, BC, MC, Hash Table */
247
248/* Configuration Register 0 (DLCR6) */
249#define CONFIG_REG_0 6
250#define DLC_EN BIT(7)
251#define SRAM_CYCLE_TIME_100NS BIT(6)
252#define SYSTEM_BUS_WIDTH_8 BIT(5) /* 1 = 8bit, 0 = 16bit */
253#define BUFFER_WIDTH_8 BIT(4) /* 1 = 8bit, 0 = 16bit */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400254#define TBS1 BIT(3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700255#define TBS0 BIT(2)
256#define SRAM_BS1 BIT(1) /* 00=8kb, 01=16kb */
257#define SRAM_BS0 BIT(0) /* 10=32kb, 11=64kb */
258
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400259#ifndef ETH16I_TX_BUF_SIZE /* 0 = 2kb, 1 = 4kb */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700260#define ETH16I_TX_BUF_SIZE 3 /* 2 = 8kb, 3 = 16kb */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400261#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700262#define TX_BUF_1x2048 0
263#define TX_BUF_2x2048 1
264#define TX_BUF_2x4098 2
265#define TX_BUF_2x8192 3
266
267/* Configuration Register 1 (DLCR7) */
268#define CONFIG_REG_1 7
269#define POWERUP BIT(5)
270
271/* Transmit start register */
272#define TRANSMIT_START_REG 10
273#define TRANSMIT_START_RB 2
274#define TX_START BIT(7) /* Rest of register bit indicate*/
275 /* number of packets in tx buffer*/
276/* Node ID registers (DLCR8-13) */
277#define NODE_ID_0 8
278#define NODE_ID_RB 0
279
280/* Hash Table registers (HT8-15) */
281#define HASH_TABLE_0 8
282#define HASH_TABLE_RB 1
283
284/* Buffer memory ports */
285#define BUFFER_MEM_PORT_LB 8
286#define DATAPORT BUFFER_MEM_PORT_LB
287#define BUFFER_MEM_PORT_HB 9
288
289/* 16 Collision control register (BMPR11) */
290#define COL_16_REG 11
291#define HALT_ON_16 0x00
292#define RETRANS_AND_HALT_ON_16 0x02
293
294/* Maximum number of attempts to send after 16 concecutive collisions */
295#define MAX_COL_16 10
296
297/* DMA Burst and Transceiver Mode Register (BMPR13) */
298#define TRANSCEIVER_MODE_REG 13
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400299#define TRANSCEIVER_MODE_RB 2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700300#define IO_BASE_UNLOCK BIT(7)
301#define LOWER_SQUELCH_TRESH BIT(6)
302#define LINK_TEST_DISABLE BIT(5)
303#define AUI_SELECT BIT(4)
304#define DIS_AUTO_PORT_SEL BIT(3)
305
306/* Filter Self Receive Register (BMPR14) */
307#define FILTER_SELF_RX_REG 14
308#define SKIP_RX_PACKET BIT(2)
309#define FILTER_SELF_RECEIVE BIT(0)
310
311/* EEPROM Control Register (BMPR 16) */
312#define EEPROM_CTRL_REG 16
313
314/* EEPROM Data Register (BMPR 17) */
315#define EEPROM_DATA_REG 17
316
317/* NMC93CSx6 EEPROM Control Bits */
318#define CS_0 0x00
319#define CS_1 0x20
320#define SK_0 0x00
321#define SK_1 0x40
322#define DI_0 0x00
323#define DI_1 0x80
324
325/* NMC93CSx6 EEPROM Instructions */
326#define EEPROM_READ 0x80
327
328/* NMC93CSx6 EEPROM Addresses */
329#define E_NODEID_0 0x02
330#define E_NODEID_1 0x03
331#define E_NODEID_2 0x04
332#define E_PORT_SELECT 0x14
333 #define E_PORT_BNC 0x00
334 #define E_PORT_DIX 0x01
335 #define E_PORT_TP 0x02
336 #define E_PORT_AUTO 0x03
337 #define E_PORT_FROM_EPROM 0x04
338#define E_PRODUCT_CFG 0x30
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400339
Linus Torvalds1da177e2005-04-16 15:20:36 -0700340
341/* Macro to slow down io between EEPROM clock transitions */
342#define eeprom_slow_io() do { int _i = 40; while(--_i > 0) { inb(0x80); }}while(0)
343
344/* Jumperless Configuration Register (BMPR19) */
345#define JUMPERLESS_CONFIG 19
346
347/* ID ROM registers, writing to them also resets some parts of chip */
348#define ID_ROM_0 24
349#define ID_ROM_7 31
350#define RESET ID_ROM_0
351
352/* This is the I/O address list to be probed when seeking the card */
353static unsigned int eth16i_portlist[] __initdata = {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400354 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300, 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355};
356
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400357static unsigned int eth32i_portlist[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0x7000, 0x8000,
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400359 0x9000, 0xA000, 0xB000, 0xC000, 0xD000, 0xE000, 0xF000, 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700360};
361
362/* This is the Interrupt lookup table for Eth16i card */
363static unsigned int eth16i_irqmap[] __initdata = { 9, 10, 5, 15, 0 };
364#define NUM_OF_ISA_IRQS 4
365
366/* This is the Interrupt lookup table for Eth32i card */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400367static unsigned int eth32i_irqmap[] __initdata = { 3, 5, 7, 9, 10, 11, 12, 15, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700368#define EISA_IRQ_REG 0xc89
369#define NUM_OF_EISA_IRQS 8
370
371static unsigned int eth16i_tx_buf_map[] = { 2048, 2048, 4096, 8192 };
372
373/* Use 0 for production, 1 for verification, >2 for debug */
374#ifndef ETH16I_DEBUG
375#define ETH16I_DEBUG 0
376#endif
377static unsigned int eth16i_debug = ETH16I_DEBUG;
378
379/* Information for each board */
380
381struct eth16i_local {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382 unsigned char tx_started;
383 unsigned char tx_buf_busy;
384 unsigned short tx_queue; /* Number of packets in transmit buffer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400385 unsigned short tx_queue_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700386 unsigned int tx_buf_size;
387 unsigned long open_time;
388 unsigned long tx_buffered_packets;
389 unsigned long tx_buffered_bytes;
390 unsigned long col_16;
391 spinlock_t lock;
392};
393
394/* Function prototypes */
395
396static int eth16i_probe1(struct net_device *dev, int ioaddr);
397static int eth16i_check_signature(int ioaddr);
398static int eth16i_probe_port(int ioaddr);
399static void eth16i_set_port(int ioaddr, int porttype);
400static int eth16i_send_probe_packet(int ioaddr, unsigned char *b, int l);
401static int eth16i_receive_probe_packet(int ioaddr);
402static int eth16i_get_irq(int ioaddr);
403static int eth16i_read_eeprom(int ioaddr, int offset);
404static int eth16i_read_eeprom_word(int ioaddr);
405static void eth16i_eeprom_cmd(int ioaddr, unsigned char command);
406static int eth16i_open(struct net_device *dev);
407static int eth16i_close(struct net_device *dev);
408static int eth16i_tx(struct sk_buff *skb, struct net_device *dev);
409static void eth16i_rx(struct net_device *dev);
410static void eth16i_timeout(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100411static irqreturn_t eth16i_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412static void eth16i_reset(struct net_device *dev);
413static void eth16i_timeout(struct net_device *dev);
414static void eth16i_skip_packet(struct net_device *dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400415static void eth16i_multicast(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416static void eth16i_select_regbank(unsigned char regbank, int ioaddr);
417static void eth16i_initialize(struct net_device *dev, int boot);
418
419#if 0
420static int eth16i_set_irq(struct net_device *dev);
421#endif
422
423#ifdef MODULE
424static ushort eth16i_parse_mediatype(const char* s);
425#endif
426
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427static char cardname[] __initdata = "ICL EtherTeam 16i/32";
428
429static int __init do_eth16i_probe(struct net_device *dev)
430{
431 int i;
432 int ioaddr;
433 int base_addr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400434
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400435 if(eth16i_debug > 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 printk(KERN_DEBUG "Probing started for %s\n", cardname);
437
438 if(base_addr > 0x1ff) /* Check only single location */
439 return eth16i_probe1(dev, base_addr);
440 else if(base_addr != 0) /* Don't probe at all */
441 return -ENXIO;
442
443 /* Seek card from the ISA io address space */
444 for(i = 0; (ioaddr = eth16i_portlist[i]) ; i++)
445 if(eth16i_probe1(dev, ioaddr) == 0)
446 return 0;
447
448 /* Seek card from the EISA io address space */
449 for(i = 0; (ioaddr = eth32i_portlist[i]) ; i++)
450 if(eth16i_probe1(dev, ioaddr) == 0)
451 return 0;
452
453 return -ENODEV;
454}
455
456#ifndef MODULE
457struct net_device * __init eth16i_probe(int unit)
458{
459 struct net_device *dev = alloc_etherdev(sizeof(struct eth16i_local));
460 int err;
461
462 if (!dev)
463 return ERR_PTR(-ENOMEM);
464
465 sprintf(dev->name, "eth%d", unit);
466 netdev_boot_setup_check(dev);
467
468 err = do_eth16i_probe(dev);
469 if (err)
470 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700472out:
473 free_netdev(dev);
474 return ERR_PTR(err);
475}
476#endif
477
Stephen Hemminger6d1ec782009-03-26 15:11:44 +0000478static const struct net_device_ops eth16i_netdev_ops = {
479 .ndo_open = eth16i_open,
480 .ndo_stop = eth16i_close,
481 .ndo_start_xmit = eth16i_tx,
482 .ndo_set_multicast_list = eth16i_multicast,
483 .ndo_tx_timeout = eth16i_timeout,
484 .ndo_change_mtu = eth_change_mtu,
485 .ndo_set_mac_address = eth_mac_addr,
486 .ndo_validate_addr = eth_validate_addr,
487};
488
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489static int __init eth16i_probe1(struct net_device *dev, int ioaddr)
490{
491 struct eth16i_local *lp = netdev_priv(dev);
492 static unsigned version_printed;
493 int retval;
494
495 /* Let's grab the region */
496 if (!request_region(ioaddr, ETH16I_IO_EXTENT, cardname))
497 return -EBUSY;
498
499 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400500 The MB86985 chip has on register which holds information in which
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501 io address the chip lies. First read this register and compare
502 it to our current io address and if match then this could
503 be our chip.
504 */
505
506 if(ioaddr < 0x1000) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400507 if(eth16i_portlist[(inb(ioaddr + JUMPERLESS_CONFIG) & 0x07)]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700508 != ioaddr) {
509 retval = -ENODEV;
510 goto out;
511 }
512 }
513
514 /* Now we will go a bit deeper and try to find the chip's signature */
515
516 if(eth16i_check_signature(ioaddr) != 0) {
517 retval = -ENODEV;
518 goto out;
519 }
520
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400521 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 Now it seems that we have found a ethernet chip in this particular
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400523 ioaddr. The MB86985 chip has this feature, that when you read a
Linus Torvalds1da177e2005-04-16 15:20:36 -0700524 certain register it will increase it's io base address to next
525 configurable slot. Now when we have found the chip, first thing is
526 to make sure that the chip's ioaddr will hold still here.
527 */
528
529 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
530 outb(0x00, ioaddr + TRANSCEIVER_MODE_REG);
531
532 outb(0x00, ioaddr + RESET); /* Reset some parts of chip */
533 BITSET(ioaddr + CONFIG_REG_0, BIT(7)); /* Disable the data link */
534
535 if( (eth16i_debug & version_printed++) == 0)
536 printk(KERN_INFO "%s", version);
537
538 dev->base_addr = ioaddr;
539 dev->irq = eth16i_get_irq(ioaddr);
540
541 /* Try to obtain interrupt vector */
542
543 if ((retval = request_irq(dev->irq, (void *)&eth16i_interrupt, 0, cardname, dev))) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400544 printk(KERN_WARNING "%s at %#3x, but is unusable due to conflicting IRQ %d.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700545 cardname, ioaddr, dev->irq);
546 goto out;
547 }
548
549 printk(KERN_INFO "%s: %s at %#3x, IRQ %d, ",
550 dev->name, cardname, ioaddr, dev->irq);
551
552
553 /* Now we will have to lock the chip's io address */
554 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400555 outb(0x38, ioaddr + TRANSCEIVER_MODE_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700556
557 eth16i_initialize(dev, 1); /* Initialize rest of the chip's registers */
558
559 /* Now let's same some energy by shutting down the chip ;) */
560 BITCLR(ioaddr + CONFIG_REG_1, POWERUP);
561
562 /* Initialize the device structure */
Stephen Hemminger6d1ec782009-03-26 15:11:44 +0000563 dev->netdev_ops = &eth16i_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 dev->watchdog_timeo = TX_TIMEOUT;
565 spin_lock_init(&lp->lock);
b1fc5502005-05-12 20:11:55 -0400566
567 retval = register_netdev(dev);
568 if (retval)
569 goto out1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700570 return 0;
b1fc5502005-05-12 20:11:55 -0400571out1:
572 free_irq(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573out:
574 release_region(ioaddr, ETH16I_IO_EXTENT);
575 return retval;
576}
577
578
579static void eth16i_initialize(struct net_device *dev, int boot)
580{
581 int ioaddr = dev->base_addr;
582 int i, node_w = 0;
583 unsigned char node_byte = 0;
584
585 /* Setup station address */
586 eth16i_select_regbank(NODE_ID_RB, ioaddr);
587 for(i = 0 ; i < 3 ; i++) {
588 unsigned short node_val = eth16i_read_eeprom(ioaddr, E_NODEID_0 + i);
589 ((unsigned short *)dev->dev_addr)[i] = ntohs(node_val);
590 }
591
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400592 for(i = 0; i < 6; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700593 outb( ((unsigned char *)dev->dev_addr)[i], ioaddr + NODE_ID_0 + i);
594 if(boot) {
595 printk("%02x", inb(ioaddr + NODE_ID_0 + i));
596 if(i != 5)
597 printk(":");
598 }
599 }
600
601 /* Now we will set multicast addresses to accept none */
602 eth16i_select_regbank(HASH_TABLE_RB, ioaddr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400603 for(i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604 outb(0x00, ioaddr + HASH_TABLE_0 + i);
605
606 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400607 Now let's disable the transmitter and receiver, set the buffer ram
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 cycle time, bus width and buffer data path width. Also we shall
609 set transmit buffer size and total buffer size.
610 */
611
612 eth16i_select_regbank(2, ioaddr);
613
614 node_byte = 0;
615 node_w = eth16i_read_eeprom(ioaddr, E_PRODUCT_CFG);
616
617 if( (node_w & 0xFF00) == 0x0800)
618 node_byte |= BUFFER_WIDTH_8;
619
620 node_byte |= SRAM_BS1;
621
622 if( (node_w & 0x00FF) == 64)
623 node_byte |= SRAM_BS0;
624
625 node_byte |= DLC_EN | SRAM_CYCLE_TIME_100NS | (ETH16I_TX_BUF_SIZE << 2);
626
627 outb(node_byte, ioaddr + CONFIG_REG_0);
628
629 /* We shall halt the transmitting, if 16 collisions are detected */
630 outb(HALT_ON_16, ioaddr + COL_16_REG);
631
632#ifdef MODULE
633 /* if_port already set by init_module() */
634#else
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400635 dev->if_port = (dev->mem_start < E_PORT_FROM_EPROM) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 dev->mem_start : E_PORT_FROM_EPROM;
637#endif
638
639 /* Set interface port type */
640 if(boot) {
641 char *porttype[] = {"BNC", "DIX", "TP", "AUTO", "FROM_EPROM" };
642
643 switch(dev->if_port)
644 {
645
646 case E_PORT_FROM_EPROM:
647 dev->if_port = eth16i_read_eeprom(ioaddr, E_PORT_SELECT);
648 break;
649
650 case E_PORT_AUTO:
651 dev->if_port = eth16i_probe_port(ioaddr);
652 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400653
Linus Torvalds1da177e2005-04-16 15:20:36 -0700654 case E_PORT_BNC:
655 case E_PORT_TP:
656 case E_PORT_DIX:
657 break;
658 }
659
660 printk(" %s interface.\n", porttype[dev->if_port]);
661
662 eth16i_set_port(ioaddr, dev->if_port);
663 }
664
665 /* Set Receive Mode to normal operation */
666 outb(MODE_2, ioaddr + RECEIVE_MODE_REG);
667}
668
669static int eth16i_probe_port(int ioaddr)
670{
671 int i;
672 int retcode;
673 unsigned char dummy_packet[64];
674
675 /* Powerup the chip */
676 outb(0xc0 | POWERUP, ioaddr + CONFIG_REG_1);
677
678 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
679
680 eth16i_select_regbank(NODE_ID_RB, ioaddr);
681
682 for(i = 0; i < 6; i++) {
683 dummy_packet[i] = inb(ioaddr + NODE_ID_0 + i);
684 dummy_packet[i+6] = inb(ioaddr + NODE_ID_0 + i);
685 }
686
687 dummy_packet[12] = 0x00;
688 dummy_packet[13] = 0x04;
689 memset(dummy_packet + 14, 0, sizeof(dummy_packet) - 14);
690
691 eth16i_select_regbank(2, ioaddr);
692
693 for(i = 0; i < 3; i++) {
694 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
695 BITCLR(ioaddr + CONFIG_REG_0, DLC_EN);
696 eth16i_set_port(ioaddr, i);
697
698 if(eth16i_debug > 1)
699 printk(KERN_DEBUG "Set port number %d\n", i);
700
701 retcode = eth16i_send_probe_packet(ioaddr, dummy_packet, 64);
702 if(retcode == 0) {
703 retcode = eth16i_receive_probe_packet(ioaddr);
704 if(retcode != -1) {
705 if(eth16i_debug > 1)
706 printk(KERN_DEBUG "Eth16i interface port found at %d\n", i);
707 return i;
708 }
709 }
710 else {
711 if(eth16i_debug > 1)
712 printk(KERN_DEBUG "TRANSMIT_DONE timeout when probing interface port\n");
713 }
714 }
715
716 if( eth16i_debug > 1)
717 printk(KERN_DEBUG "Using default port\n");
718
719 return E_PORT_BNC;
720}
721
722static void eth16i_set_port(int ioaddr, int porttype)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400723{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 unsigned short temp = 0;
725
726 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
727 outb(LOOPBACK_CONTROL, ioaddr + TRANSMIT_MODE_REG);
728
729 temp |= DIS_AUTO_PORT_SEL;
730
731 switch(porttype) {
732
733 case E_PORT_BNC :
734 temp |= AUI_SELECT;
735 break;
736
737 case E_PORT_TP :
738 break;
739
740 case E_PORT_DIX :
741 temp |= AUI_SELECT;
742 BITSET(ioaddr + TRANSMIT_MODE_REG, CONTROL_OUTPUT);
743 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400744 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700745
746 outb(temp, ioaddr + TRANSCEIVER_MODE_REG);
747
748 if(eth16i_debug > 1) {
749 printk(KERN_DEBUG "TRANSMIT_MODE_REG = %x\n", inb(ioaddr + TRANSMIT_MODE_REG));
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400750 printk(KERN_DEBUG "TRANSCEIVER_MODE_REG = %x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751 inb(ioaddr+TRANSCEIVER_MODE_REG));
752 }
753}
754
755static int eth16i_send_probe_packet(int ioaddr, unsigned char *b, int l)
756{
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800757 unsigned long starttime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700758
759 outb(0xff, ioaddr + TX_STATUS_REG);
760
761 outw(l, ioaddr + DATAPORT);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400762 outsw(ioaddr + DATAPORT, (unsigned short *)b, (l + 1) >> 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700763
764 starttime = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400765 outb(TX_START | 1, ioaddr + TRANSMIT_START_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766
767 while( (inb(ioaddr + TX_STATUS_REG) & 0x80) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800768 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700769 return -1;
770 }
771 }
772
773 return 0;
774}
775
776static int eth16i_receive_probe_packet(int ioaddr)
777{
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800778 unsigned long starttime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779
780 starttime = jiffies;
781
782 while((inb(ioaddr + TX_STATUS_REG) & 0x20) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800783 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784
785 if(eth16i_debug > 1)
786 printk(KERN_DEBUG "Timeout occurred waiting transmit packet received\n");
787 starttime = jiffies;
788 while((inb(ioaddr + RX_STATUS_REG) & 0x80) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800789 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 if(eth16i_debug > 1)
791 printk(KERN_DEBUG "Timeout occurred waiting receive packet\n");
792 return -1;
793 }
794 }
795
796 if(eth16i_debug > 1)
797 printk(KERN_DEBUG "RECEIVE_PACKET\n");
798 return(0); /* Found receive packet */
799 }
800 }
801
802 if(eth16i_debug > 1) {
803 printk(KERN_DEBUG "TRANSMIT_PACKET_RECEIVED %x\n", inb(ioaddr + TX_STATUS_REG));
804 printk(KERN_DEBUG "RX_STATUS_REG = %x\n", inb(ioaddr + RX_STATUS_REG));
805 }
806
807 return(0); /* Return success */
808}
809
810#if 0
811static int eth16i_set_irq(struct net_device* dev)
812{
813 const int ioaddr = dev->base_addr;
814 const int irq = dev->irq;
815 int i = 0;
816
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400817 if(ioaddr < 0x1000) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818 while(eth16i_irqmap[i] && eth16i_irqmap[i] != irq)
819 i++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400820
Linus Torvalds1da177e2005-04-16 15:20:36 -0700821 if(i < NUM_OF_ISA_IRQS) {
822 u8 cbyte = inb(ioaddr + JUMPERLESS_CONFIG);
823 cbyte = (cbyte & 0x3F) | (i << 6);
824 outb(cbyte, ioaddr + JUMPERLESS_CONFIG);
825 return 0;
826 }
827 }
828 else {
829 printk(KERN_NOTICE "%s: EISA Interrupt cannot be set. Use EISA Configuration utility.\n", dev->name);
830 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400831
Linus Torvalds1da177e2005-04-16 15:20:36 -0700832 return -1;
833
834}
835#endif
836
837static int __init eth16i_get_irq(int ioaddr)
838{
839 unsigned char cbyte;
840
841 if( ioaddr < 0x1000) {
842 cbyte = inb(ioaddr + JUMPERLESS_CONFIG);
843 return( eth16i_irqmap[ ((cbyte & 0xC0) >> 6) ] );
844 } else { /* Oh..the card is EISA so method getting IRQ different */
845 unsigned short index = 0;
846 cbyte = inb(ioaddr + EISA_IRQ_REG);
847 while( (cbyte & 0x01) == 0) {
848 cbyte = cbyte >> 1;
849 index++;
850 }
851 return( eth32i_irqmap[ index ] );
852 }
853}
854
855static int __init eth16i_check_signature(int ioaddr)
856{
857 int i;
858 unsigned char creg[4] = { 0 };
859
860 for(i = 0; i < 4 ; i++) {
861
862 creg[i] = inb(ioaddr + TRANSMIT_MODE_REG + i);
863
864 if(eth16i_debug > 1)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400865 printk("eth16i: read signature byte %x at %x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866 creg[i],
867 ioaddr + TRANSMIT_MODE_REG + i);
868 }
869
870 creg[0] &= 0x0F; /* Mask collision cnr */
871 creg[2] &= 0x7F; /* Mask DCLEN bit */
872
873#if 0
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400874 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700875 This was removed because the card was sometimes left to state
876 from which it couldn't be find anymore. If there is need
877 to more strict check still this have to be fixed.
878 */
879 if( ! ((creg[0] == 0x06) && (creg[1] == 0x41)) ) {
880 if(creg[1] != 0x42)
881 return -1;
882 }
883#endif
884
885 if( !((creg[2] == 0x36) && (creg[3] == 0xE0)) ) {
886 creg[2] &= 0x40;
887 creg[3] &= 0x03;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400888
Linus Torvalds1da177e2005-04-16 15:20:36 -0700889 if( !((creg[2] == 0x40) && (creg[3] == 0x00)) )
890 return -1;
891 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400892
Linus Torvalds1da177e2005-04-16 15:20:36 -0700893 if(eth16i_read_eeprom(ioaddr, E_NODEID_0) != 0)
894 return -1;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400895
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896 if((eth16i_read_eeprom(ioaddr, E_NODEID_1) & 0xFF00) != 0x4B00)
897 return -1;
898
899 return 0;
900}
901
902static int eth16i_read_eeprom(int ioaddr, int offset)
903{
904 int data = 0;
905
906 eth16i_eeprom_cmd(ioaddr, EEPROM_READ | offset);
907 outb(CS_1, ioaddr + EEPROM_CTRL_REG);
908 data = eth16i_read_eeprom_word(ioaddr);
909 outb(CS_0 | SK_0, ioaddr + EEPROM_CTRL_REG);
910
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400911 return(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912}
913
914static int eth16i_read_eeprom_word(int ioaddr)
915{
916 int i;
917 int data = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400918
Linus Torvalds1da177e2005-04-16 15:20:36 -0700919 for(i = 16; i > 0; i--) {
920 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
921 eeprom_slow_io();
922 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
923 eeprom_slow_io();
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400924 data = (data << 1) |
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 ((inb(ioaddr + EEPROM_DATA_REG) & DI_1) ? 1 : 0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400926
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927 eeprom_slow_io();
928 }
929
930 return(data);
931}
932
933static void eth16i_eeprom_cmd(int ioaddr, unsigned char command)
934{
935 int i;
936
937 outb(CS_0 | SK_0, ioaddr + EEPROM_CTRL_REG);
938 outb(DI_0, ioaddr + EEPROM_DATA_REG);
939 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
940 outb(DI_1, ioaddr + EEPROM_DATA_REG);
941 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
942
943 for(i = 7; i >= 0; i--) {
944 short cmd = ( (command & (1 << i)) ? DI_1 : DI_0 );
945 outb(cmd, ioaddr + EEPROM_DATA_REG);
946 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
947 eeprom_slow_io();
948 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
949 eeprom_slow_io();
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400950 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951}
952
953static int eth16i_open(struct net_device *dev)
954{
955 struct eth16i_local *lp = netdev_priv(dev);
956 int ioaddr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400957
Linus Torvalds1da177e2005-04-16 15:20:36 -0700958 /* Powerup the chip */
959 outb(0xc0 | POWERUP, ioaddr + CONFIG_REG_1);
960
961 /* Initialize the chip */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400962 eth16i_initialize(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963
964 /* Set the transmit buffer size */
965 lp->tx_buf_size = eth16i_tx_buf_map[ETH16I_TX_BUF_SIZE & 0x03];
966
967 if(eth16i_debug > 0)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400968 printk(KERN_DEBUG "%s: transmit buffer size %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969 dev->name, lp->tx_buf_size);
970
971 /* Now enable Transmitter and Receiver sections */
972 BITCLR(ioaddr + CONFIG_REG_0, DLC_EN);
973
974 /* Now switch to register bank 2, for run time operation */
975 eth16i_select_regbank(2, ioaddr);
976
977 lp->open_time = jiffies;
978 lp->tx_started = 0;
979 lp->tx_queue = 0;
980 lp->tx_queue_len = 0;
981
982 /* Turn on interrupts*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400983 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984
985 netif_start_queue(dev);
986 return 0;
987}
988
989static int eth16i_close(struct net_device *dev)
990{
991 struct eth16i_local *lp = netdev_priv(dev);
992 int ioaddr = dev->base_addr;
993
994 eth16i_reset(dev);
995
996 /* Turn off interrupts*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400997 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
999 netif_stop_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001000
Linus Torvalds1da177e2005-04-16 15:20:36 -07001001 lp->open_time = 0;
1002
1003 /* Disable transmit and receive */
1004 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
1005
1006 /* Reset the chip */
1007 /* outb(0xff, ioaddr + RESET); */
1008 /* outw(0xffff, ioaddr + TX_STATUS_REG); */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001009
Linus Torvalds1da177e2005-04-16 15:20:36 -07001010 outb(0x00, ioaddr + CONFIG_REG_1);
1011
1012 return 0;
1013}
1014
1015static void eth16i_timeout(struct net_device *dev)
1016{
1017 struct eth16i_local *lp = netdev_priv(dev);
1018 int ioaddr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001019 /*
1020 If we get here, some higher level has decided that
1021 we are broken. There should really be a "kick me"
1022 function call instead.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 */
1024
1025 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001026 printk(KERN_WARNING "%s: transmit timed out with status %04x, %s ?\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001027 dev->name,
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001028 inw(ioaddr + TX_STATUS_REG), (inb(ioaddr + TX_STATUS_REG) & TX_DONE) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -07001029 "IRQ conflict" : "network cable problem");
1030
1031 dev->trans_start = jiffies;
1032
1033 /* Let's dump all registers */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001034 if(eth16i_debug > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 printk(KERN_DEBUG "%s: timeout: %02x %02x %02x %02x %02x %02x %02x %02x.\n",
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001036 dev->name, inb(ioaddr + 0),
1037 inb(ioaddr + 1), inb(ioaddr + 2),
1038 inb(ioaddr + 3), inb(ioaddr + 4),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001039 inb(ioaddr + 5),
1040 inb(ioaddr + 6), inb(ioaddr + 7));
1041
1042 printk(KERN_DEBUG "%s: transmit start reg: %02x. collision reg %02x\n",
1043 dev->name, inb(ioaddr + TRANSMIT_START_REG),
1044 inb(ioaddr + COL_16_REG));
1045 printk(KERN_DEBUG "lp->tx_queue = %d\n", lp->tx_queue);
1046 printk(KERN_DEBUG "lp->tx_queue_len = %d\n", lp->tx_queue_len);
1047 printk(KERN_DEBUG "lp->tx_started = %d\n", lp->tx_started);
1048 }
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001049 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 eth16i_reset(dev);
1051 dev->trans_start = jiffies;
1052 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
1053 netif_wake_queue(dev);
1054}
1055
1056static int eth16i_tx(struct sk_buff *skb, struct net_device *dev)
1057{
1058 struct eth16i_local *lp = netdev_priv(dev);
1059 int ioaddr = dev->base_addr;
1060 int status = 0;
1061 ushort length = skb->len;
1062 unsigned char *buf;
1063 unsigned long flags;
1064
1065 if (length < ETH_ZLEN) {
Herbert Xu5b057c62006-06-23 02:06:41 -07001066 if (skb_padto(skb, ETH_ZLEN))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001067 return 0;
1068 length = ETH_ZLEN;
1069 }
1070 buf = skb->data;
1071
1072 netif_stop_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001073
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 /* Turn off TX interrupts */
1075 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001076
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077 /* We would be better doing the disable_irq tricks the 3c509 does,
1078 that would make this suck a lot less */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001079
Linus Torvalds1da177e2005-04-16 15:20:36 -07001080 spin_lock_irqsave(&lp->lock, flags);
1081
1082 if( (length + 2) > (lp->tx_buf_size - lp->tx_queue_len)) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001083 if(eth16i_debug > 0)
1084 printk(KERN_WARNING "%s: Transmit buffer full.\n", dev->name);
1085 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086 else {
1087 outw(length, ioaddr + DATAPORT);
1088
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001089 if( ioaddr < 0x1000 )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090 outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
1091 else {
1092 unsigned char frag = length % 4;
1093 outsl(ioaddr + DATAPORT, buf, length >> 2);
1094 if( frag != 0 ) {
1095 outsw(ioaddr + DATAPORT, (buf + (length & 0xFFFC)), 1);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001096 if( frag == 3 )
1097 outsw(ioaddr + DATAPORT,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098 (buf + (length & 0xFFFC) + 2), 1);
1099 }
1100 }
1101 lp->tx_buffered_packets++;
1102 lp->tx_buffered_bytes = length;
1103 lp->tx_queue++;
1104 lp->tx_queue_len += length + 2;
1105 }
1106 lp->tx_buf_busy = 0;
1107
1108 if(lp->tx_started == 0) {
1109 /* If the transmitter is idle..always trigger a transmit */
1110 outb(TX_START | lp->tx_queue, ioaddr + TRANSMIT_START_REG);
1111 lp->tx_queue = 0;
1112 lp->tx_queue_len = 0;
1113 dev->trans_start = jiffies;
1114 lp->tx_started = 1;
1115 netif_wake_queue(dev);
1116 }
1117 else if(lp->tx_queue_len < lp->tx_buf_size - (ETH_FRAME_LEN + 2)) {
1118 /* There is still more room for one more packet in tx buffer */
1119 netif_wake_queue(dev);
1120 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001121
Linus Torvalds1da177e2005-04-16 15:20:36 -07001122 spin_unlock_irqrestore(&lp->lock, flags);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001123
Linus Torvalds1da177e2005-04-16 15:20:36 -07001124 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
1125 /* Turn TX interrupts back on */
1126 /* outb(TX_INTR_DONE | TX_INTR_16_COL, ioaddr + TX_INTR_REG); */
1127 status = 0;
1128 dev_kfree_skb(skb);
1129 return 0;
1130}
1131
1132static void eth16i_rx(struct net_device *dev)
1133{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001134 int ioaddr = dev->base_addr;
1135 int boguscount = MAX_RX_LOOP;
1136
1137 /* Loop until all packets have been read */
1138 while( (inb(ioaddr + RECEIVE_MODE_REG) & RX_BUFFER_EMPTY) == 0) {
1139
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001140 /* Read status byte from receive buffer */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001141 ushort status = inw(ioaddr + DATAPORT);
1142
1143 /* Get the size of the packet from receive buffer */
1144 ushort pkt_len = inw(ioaddr + DATAPORT);
1145
1146 if(eth16i_debug > 4)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001147 printk(KERN_DEBUG "%s: Receiving packet mode %02x status %04x.\n",
1148 dev->name,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001149 inb(ioaddr + RECEIVE_MODE_REG), status);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001150
Linus Torvalds1da177e2005-04-16 15:20:36 -07001151 if( !(status & PKT_GOOD) ) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001152 dev->stats.rx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001153
1154 if( (pkt_len < ETH_ZLEN) || (pkt_len > ETH_FRAME_LEN) ) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001155 dev->stats.rx_length_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001156 eth16i_reset(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001157 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001158 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001159 else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001160 eth16i_skip_packet(dev);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001161 dev->stats.rx_dropped++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001162 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001163 }
1164 else { /* Ok so now we should have a good packet */
1165 struct sk_buff *skb;
1166
1167 skb = dev_alloc_skb(pkt_len + 3);
1168 if( skb == NULL ) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001169 printk(KERN_WARNING "%s: Could'n allocate memory for packet (len %d)\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170 dev->name, pkt_len);
1171 eth16i_skip_packet(dev);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001172 dev->stats.rx_dropped++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001173 break;
1174 }
1175
Linus Torvalds1da177e2005-04-16 15:20:36 -07001176 skb_reserve(skb,2);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001177
1178 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179 Now let's get the packet out of buffer.
1180 size is (pkt_len + 1) >> 1, cause we are now reading words
1181 and it have to be even aligned.
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001182 */
1183
1184 if(ioaddr < 0x1000)
1185 insw(ioaddr + DATAPORT, skb_put(skb, pkt_len),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186 (pkt_len + 1) >> 1);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001187 else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188 unsigned char *buf = skb_put(skb, pkt_len);
1189 unsigned char frag = pkt_len % 4;
1190
1191 insl(ioaddr + DATAPORT, buf, pkt_len >> 2);
1192
1193 if(frag != 0) {
1194 unsigned short rest[2];
1195 rest[0] = inw( ioaddr + DATAPORT );
1196 if(frag == 3)
1197 rest[1] = inw( ioaddr + DATAPORT );
1198
1199 memcpy(buf + (pkt_len & 0xfffc), (char *)rest, frag);
1200 }
1201 }
1202
1203 skb->protocol=eth_type_trans(skb, dev);
1204
1205 if( eth16i_debug > 5 ) {
1206 int i;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001207 printk(KERN_DEBUG "%s: Received packet of length %d.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001208 dev->name, pkt_len);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001209 for(i = 0; i < 14; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001210 printk(KERN_DEBUG " %02x", skb->data[i]);
1211 printk(KERN_DEBUG ".\n");
1212 }
1213 netif_rx(skb);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001214 dev->stats.rx_packets++;
1215 dev->stats.rx_bytes += pkt_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216
1217 } /* else */
1218
1219 if(--boguscount <= 0)
1220 break;
1221
1222 } /* while */
1223}
1224
David Howells7d12e782006-10-05 14:55:46 +01001225static irqreturn_t eth16i_interrupt(int irq, void *dev_id)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001226{
1227 struct net_device *dev = dev_id;
1228 struct eth16i_local *lp;
1229 int ioaddr = 0, status;
1230 int handled = 0;
1231
1232 ioaddr = dev->base_addr;
1233 lp = netdev_priv(dev);
1234
1235 /* Turn off all interrupts from adapter */
1236 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
1237
1238 /* eth16i_tx won't be called */
1239 spin_lock(&lp->lock);
1240
1241 status = inw(ioaddr + TX_STATUS_REG); /* Get the status */
1242 outw(status, ioaddr + TX_STATUS_REG); /* Clear status bits */
1243
1244 if (status)
1245 handled = 1;
1246
1247 if(eth16i_debug > 3)
1248 printk(KERN_DEBUG "%s: Interrupt with status %04x.\n", dev->name, status);
1249
1250 if( status & 0x7f00 ) {
1251
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001252 dev->stats.rx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001253
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001254 if(status & (BUS_RD_ERR << 8) )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001255 printk(KERN_WARNING "%s: Bus read error.\n",dev->name);
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001256 if(status & (SHORT_PKT_ERR << 8) ) dev->stats.rx_length_errors++;
1257 if(status & (ALIGN_ERR << 8) ) dev->stats.rx_frame_errors++;
1258 if(status & (CRC_ERR << 8) ) dev->stats.rx_crc_errors++;
1259 if(status & (RX_BUF_OVERFLOW << 8) ) dev->stats.rx_over_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001260 }
1261 if( status & 0x001a) {
1262
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001263 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001264
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001265 if(status & CR_LOST) dev->stats.tx_carrier_errors++;
1266 if(status & TX_JABBER_ERR) dev->stats.tx_window_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001268#if 0
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 if(status & COLLISION) {
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001270 dev->stats.collisions +=
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 ((inb(ioaddr+TRANSMIT_MODE_REG) & 0xF0) >> 4);
1272 }
1273#endif
1274 if(status & COLLISIONS_16) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001275 if(lp->col_16 < MAX_COL_16) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 lp->col_16++;
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001277 dev->stats.collisions++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001278 /* Resume transmitting, skip failed packet */
1279 outb(0x02, ioaddr + COL_16_REG);
1280 }
1281 else {
1282 printk(KERN_WARNING "%s: bailing out due to many consecutive 16-in-a-row collisions. Network cable problem?\n", dev->name);
1283 }
1284 }
1285 }
1286
1287 if( status & 0x00ff ) { /* Let's check the transmit status reg */
1288
1289 if(status & TX_DONE) { /* The transmit has been done */
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001290 dev->stats.tx_packets = lp->tx_buffered_packets;
1291 dev->stats.tx_bytes += lp->tx_buffered_bytes;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001292 lp->col_16 = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293
1294 if(lp->tx_queue) { /* Is there still packets ? */
1295 /* There was packet(s) so start transmitting and write also
1296 how many packets there is to be sended */
1297 outb(TX_START | lp->tx_queue, ioaddr + TRANSMIT_START_REG);
1298 lp->tx_queue = 0;
1299 lp->tx_queue_len = 0;
1300 lp->tx_started = 1;
1301 }
1302 else {
1303 lp->tx_started = 0;
1304 }
1305 netif_wake_queue(dev);
1306 }
1307 }
1308
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001309 if( ( status & 0x8000 ) ||
Linus Torvalds1da177e2005-04-16 15:20:36 -07001310 ( (inb(ioaddr + RECEIVE_MODE_REG) & RX_BUFFER_EMPTY) == 0) ) {
1311 eth16i_rx(dev); /* We have packet in receive buffer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001312 }
1313
Linus Torvalds1da177e2005-04-16 15:20:36 -07001314 /* Turn interrupts back on */
1315 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001316
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317 if(lp->tx_queue_len < lp->tx_buf_size - (ETH_FRAME_LEN + 2)) {
1318 /* There is still more room for one more packet in tx buffer */
1319 netif_wake_queue(dev);
1320 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001321
Linus Torvalds1da177e2005-04-16 15:20:36 -07001322 spin_unlock(&lp->lock);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001323
Linus Torvalds1da177e2005-04-16 15:20:36 -07001324 return IRQ_RETVAL(handled);
1325}
1326
1327static void eth16i_skip_packet(struct net_device *dev)
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001328{
Linus Torvalds1da177e2005-04-16 15:20:36 -07001329 int ioaddr = dev->base_addr;
1330
1331 inw(ioaddr + DATAPORT);
1332 inw(ioaddr + DATAPORT);
1333 inw(ioaddr + DATAPORT);
1334
1335 outb(SKIP_RX_PACKET, ioaddr + FILTER_SELF_RX_REG);
1336 while( inb( ioaddr + FILTER_SELF_RX_REG ) != 0);
1337}
1338
1339static void eth16i_reset(struct net_device *dev)
1340{
1341 struct eth16i_local *lp = netdev_priv(dev);
1342 int ioaddr = dev->base_addr;
1343
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001344 if(eth16i_debug > 1)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001345 printk(KERN_DEBUG "%s: Resetting device.\n", dev->name);
1346
1347 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001348 outw(0xffff, ioaddr + TX_STATUS_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 eth16i_select_regbank(2, ioaddr);
1350
1351 lp->tx_started = 0;
1352 lp->tx_buf_busy = 0;
1353 lp->tx_queue = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001354 lp->tx_queue_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001355 BITCLR(ioaddr + CONFIG_REG_0, DLC_EN);
1356}
1357
1358static void eth16i_multicast(struct net_device *dev)
1359{
1360 int ioaddr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001361
1362 if(dev->mc_count || dev->flags&(IFF_ALLMULTI|IFF_PROMISC))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001363 {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001364 outb(3, ioaddr + RECEIVE_MODE_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001365 } else {
1366 outb(2, ioaddr + RECEIVE_MODE_REG);
1367 }
1368}
1369
Linus Torvalds1da177e2005-04-16 15:20:36 -07001370static void eth16i_select_regbank(unsigned char banknbr, int ioaddr)
1371{
1372 unsigned char data;
1373
1374 data = inb(ioaddr + CONFIG_REG_1);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001375 outb( ((data & 0xF3) | ( (banknbr & 0x03) << 2)), ioaddr + CONFIG_REG_1);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376}
1377
1378#ifdef MODULE
1379
1380static ushort eth16i_parse_mediatype(const char* s)
1381{
1382 if(!s)
1383 return E_PORT_FROM_EPROM;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001384
Linus Torvalds1da177e2005-04-16 15:20:36 -07001385 if (!strncmp(s, "bnc", 3))
1386 return E_PORT_BNC;
1387 else if (!strncmp(s, "tp", 2))
1388 return E_PORT_TP;
1389 else if (!strncmp(s, "dix", 3))
1390 return E_PORT_DIX;
1391 else if (!strncmp(s, "auto", 4))
1392 return E_PORT_AUTO;
1393 else
1394 return E_PORT_FROM_EPROM;
1395}
1396
1397#define MAX_ETH16I_CARDS 4 /* Max number of Eth16i cards per module */
1398
1399static struct net_device *dev_eth16i[MAX_ETH16I_CARDS];
1400static int io[MAX_ETH16I_CARDS];
1401#if 0
1402static int irq[MAX_ETH16I_CARDS];
1403#endif
1404static char* mediatype[MAX_ETH16I_CARDS];
1405static int debug = -1;
1406
1407MODULE_AUTHOR("Mika Kuoppala <miku@iki.fi>");
1408MODULE_DESCRIPTION("ICL EtherTeam 16i/32 driver");
1409MODULE_LICENSE("GPL");
1410
1411
1412module_param_array(io, int, NULL, 0);
1413MODULE_PARM_DESC(io, "eth16i I/O base address(es)");
1414
1415#if 0
1416module_param_array(irq, int, NULL, 0);
1417MODULE_PARM_DESC(irq, "eth16i interrupt request number");
1418#endif
1419
1420module_param_array(mediatype, charp, NULL, 0);
1421MODULE_PARM_DESC(mediatype, "eth16i media type of interface(s) (bnc,tp,dix,auto,eprom)");
1422
1423module_param(debug, int, 0);
1424MODULE_PARM_DESC(debug, "eth16i debug level (0-6)");
1425
Andrew Morton58f149f2006-08-14 23:00:03 -07001426int __init init_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001427{
1428 int this_dev, found = 0;
1429 struct net_device *dev;
1430
1431 for (this_dev = 0; this_dev < MAX_ETH16I_CARDS; this_dev++) {
1432 dev = alloc_etherdev(sizeof(struct eth16i_local));
1433 if (!dev)
1434 break;
1435
1436 dev->base_addr = io[this_dev];
1437
1438 if(debug != -1)
1439 eth16i_debug = debug;
1440
1441 if(eth16i_debug > 1)
1442 printk(KERN_NOTICE "eth16i(%d): interface type %s\n", this_dev, mediatype[this_dev] ? mediatype[this_dev] : "none" );
1443
1444 dev->if_port = eth16i_parse_mediatype(mediatype[this_dev]);
1445
1446 if(io[this_dev] == 0) {
1447 if(this_dev != 0) /* Only autoprobe 1st one */
1448 break;
1449
1450 printk(KERN_NOTICE "eth16i.c: Presently autoprobing (not recommended) for a single card.\n");
1451 }
1452
1453 if (do_eth16i_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -04001454 dev_eth16i[found++] = dev;
1455 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001456 }
1457 printk(KERN_WARNING "eth16i.c No Eth16i card found (i/o = 0x%x).\n",
1458 io[this_dev]);
1459 free_netdev(dev);
1460 break;
1461 }
1462 if (found)
1463 return 0;
1464 return -ENXIO;
1465}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001466
Al Viroafc8eb42006-06-14 18:50:53 -04001467void __exit cleanup_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001468{
1469 int this_dev;
1470
1471 for(this_dev = 0; this_dev < MAX_ETH16I_CARDS; this_dev++) {
1472 struct net_device *dev = dev_eth16i[this_dev];
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001473
Wang Chen4cf16532008-11-12 23:38:14 -08001474 if (netdev_priv(dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001475 unregister_netdev(dev);
1476 free_irq(dev->irq, dev);
1477 release_region(dev->base_addr, ETH16I_IO_EXTENT);
1478 free_netdev(dev);
1479 }
1480 }
1481}
1482#endif /* MODULE */