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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
Lucas De Marchi25985ed2011-03-30 22:57:33 -030016 (Uses true 32 bit transfers rather than 16i compatibility mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -070017
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>
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400155#include <linux/string.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156#include <linux/errno.h>
157#include <linux/init.h>
158#include <linux/spinlock.h>
159#include <linux/netdevice.h>
160#include <linux/etherdevice.h>
161#include <linux/skbuff.h>
162#include <linux/bitops.h>
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800163#include <linux/jiffies.h>
Matthew Wilcox53d5ed62006-10-11 01:22:01 -0700164#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400166#include <asm/system.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -0700167#include <asm/dma.h>
168
169
170
171/* Few macros */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400172#define BITSET(ioaddr, bnum) ((outb(((inb(ioaddr)) | (bnum)), ioaddr)))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700173#define BITCLR(ioaddr, bnum) ((outb(((inb(ioaddr)) & (~(bnum))), ioaddr)))
174
175/* This is the I/O address space for Etherteam 16i adapter. */
176#define ETH16I_IO_EXTENT 32
177
178/* Ticks before deciding that transmit has timed out */
179#define TX_TIMEOUT (400*HZ/1000)
180
181/* Maximum loop count when receiving packets */
182#define MAX_RX_LOOP 20
183
184/* Some interrupt masks */
185#define ETH16I_INTR_ON 0xef8a /* Higher is receive mask */
186#define ETH16I_INTR_OFF 0x0000
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400187
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188/* Buffers header status byte meanings */
189#define PKT_GOOD BIT(5)
190#define PKT_GOOD_RMT BIT(4)
191#define PKT_SHORT BIT(3)
192#define PKT_ALIGN_ERR BIT(2)
193#define PKT_CRC_ERR BIT(1)
194#define PKT_RX_BUF_OVERFLOW BIT(0)
195
196/* Transmit status register (DLCR0) */
197#define TX_STATUS_REG 0
198#define TX_DONE BIT(7)
199#define NET_BUSY BIT(6)
200#define TX_PKT_RCD BIT(5)
201#define CR_LOST BIT(4)
202#define TX_JABBER_ERR BIT(3)
203#define COLLISION BIT(2)
204#define COLLISIONS_16 BIT(1)
205
206/* Receive status register (DLCR1) */
207#define RX_STATUS_REG 1
208#define RX_PKT BIT(7) /* Packet received */
209#define BUS_RD_ERR BIT(6)
210#define SHORT_PKT_ERR BIT(3)
211#define ALIGN_ERR BIT(2)
212#define CRC_ERR BIT(1)
213#define RX_BUF_OVERFLOW BIT(0)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400214
Linus Torvalds1da177e2005-04-16 15:20:36 -0700215/* Transmit Interrupt Enable Register (DLCR2) */
216#define TX_INTR_REG 2
217#define TX_INTR_DONE BIT(7)
218#define TX_INTR_COL BIT(2)
219#define TX_INTR_16_COL BIT(1)
220
221/* Receive Interrupt Enable Register (DLCR3) */
222#define RX_INTR_REG 3
223#define RX_INTR_RECEIVE BIT(7)
224#define RX_INTR_SHORT_PKT BIT(3)
225#define RX_INTR_CRC_ERR BIT(1)
226#define RX_INTR_BUF_OVERFLOW BIT(0)
227
228/* Transmit Mode Register (DLCR4) */
229#define TRANSMIT_MODE_REG 4
230#define LOOPBACK_CONTROL BIT(1)
231#define CONTROL_OUTPUT BIT(2)
232
233/* Receive Mode Register (DLCR5) */
234#define RECEIVE_MODE_REG 5
235#define RX_BUFFER_EMPTY BIT(6)
236#define ACCEPT_BAD_PACKETS BIT(5)
237#define RECEIVE_SHORT_ADDR BIT(4)
238#define ACCEPT_SHORT_PACKETS BIT(3)
239#define REMOTE_RESET BIT(2)
240
241#define ADDRESS_FILTER_MODE BIT(1) | BIT(0)
242#define REJECT_ALL 0
243#define ACCEPT_ALL 3
244#define MODE_1 1 /* NODE ID, BC, MC, 2-24th bit */
245#define MODE_2 2 /* NODE ID, BC, MC, Hash Table */
246
247/* Configuration Register 0 (DLCR6) */
248#define CONFIG_REG_0 6
249#define DLC_EN BIT(7)
250#define SRAM_CYCLE_TIME_100NS BIT(6)
251#define SYSTEM_BUS_WIDTH_8 BIT(5) /* 1 = 8bit, 0 = 16bit */
252#define BUFFER_WIDTH_8 BIT(4) /* 1 = 8bit, 0 = 16bit */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400253#define TBS1 BIT(3)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254#define TBS0 BIT(2)
255#define SRAM_BS1 BIT(1) /* 00=8kb, 01=16kb */
256#define SRAM_BS0 BIT(0) /* 10=32kb, 11=64kb */
257
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400258#ifndef ETH16I_TX_BUF_SIZE /* 0 = 2kb, 1 = 4kb */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700259#define ETH16I_TX_BUF_SIZE 3 /* 2 = 8kb, 3 = 16kb */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400260#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261#define TX_BUF_1x2048 0
262#define TX_BUF_2x2048 1
263#define TX_BUF_2x4098 2
264#define TX_BUF_2x8192 3
265
266/* Configuration Register 1 (DLCR7) */
267#define CONFIG_REG_1 7
268#define POWERUP BIT(5)
269
270/* Transmit start register */
271#define TRANSMIT_START_REG 10
272#define TRANSMIT_START_RB 2
273#define TX_START BIT(7) /* Rest of register bit indicate*/
274 /* number of packets in tx buffer*/
275/* Node ID registers (DLCR8-13) */
276#define NODE_ID_0 8
277#define NODE_ID_RB 0
278
279/* Hash Table registers (HT8-15) */
280#define HASH_TABLE_0 8
281#define HASH_TABLE_RB 1
282
283/* Buffer memory ports */
284#define BUFFER_MEM_PORT_LB 8
285#define DATAPORT BUFFER_MEM_PORT_LB
286#define BUFFER_MEM_PORT_HB 9
287
288/* 16 Collision control register (BMPR11) */
289#define COL_16_REG 11
290#define HALT_ON_16 0x00
291#define RETRANS_AND_HALT_ON_16 0x02
292
293/* Maximum number of attempts to send after 16 concecutive collisions */
294#define MAX_COL_16 10
295
296/* DMA Burst and Transceiver Mode Register (BMPR13) */
297#define TRANSCEIVER_MODE_REG 13
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400298#define TRANSCEIVER_MODE_RB 2
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299#define IO_BASE_UNLOCK BIT(7)
300#define LOWER_SQUELCH_TRESH BIT(6)
301#define LINK_TEST_DISABLE BIT(5)
302#define AUI_SELECT BIT(4)
303#define DIS_AUTO_PORT_SEL BIT(3)
304
305/* Filter Self Receive Register (BMPR14) */
306#define FILTER_SELF_RX_REG 14
307#define SKIP_RX_PACKET BIT(2)
308#define FILTER_SELF_RECEIVE BIT(0)
309
310/* EEPROM Control Register (BMPR 16) */
311#define EEPROM_CTRL_REG 16
312
313/* EEPROM Data Register (BMPR 17) */
314#define EEPROM_DATA_REG 17
315
316/* NMC93CSx6 EEPROM Control Bits */
317#define CS_0 0x00
318#define CS_1 0x20
319#define SK_0 0x00
320#define SK_1 0x40
321#define DI_0 0x00
322#define DI_1 0x80
323
324/* NMC93CSx6 EEPROM Instructions */
325#define EEPROM_READ 0x80
326
327/* NMC93CSx6 EEPROM Addresses */
328#define E_NODEID_0 0x02
329#define E_NODEID_1 0x03
330#define E_NODEID_2 0x04
331#define E_PORT_SELECT 0x14
332 #define E_PORT_BNC 0x00
333 #define E_PORT_DIX 0x01
334 #define E_PORT_TP 0x02
335 #define E_PORT_AUTO 0x03
336 #define E_PORT_FROM_EPROM 0x04
337#define E_PRODUCT_CFG 0x30
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400338
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339
340/* Macro to slow down io between EEPROM clock transitions */
341#define eeprom_slow_io() do { int _i = 40; while(--_i > 0) { inb(0x80); }}while(0)
342
343/* Jumperless Configuration Register (BMPR19) */
344#define JUMPERLESS_CONFIG 19
345
346/* ID ROM registers, writing to them also resets some parts of chip */
347#define ID_ROM_0 24
348#define ID_ROM_7 31
349#define RESET ID_ROM_0
350
351/* This is the I/O address list to be probed when seeking the card */
352static unsigned int eth16i_portlist[] __initdata = {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400353 0x260, 0x280, 0x2A0, 0x240, 0x340, 0x320, 0x380, 0x300, 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700354};
355
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400356static unsigned int eth32i_portlist[] __initdata = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 0x1000, 0x2000, 0x3000, 0x4000, 0x5000, 0x6000, 0x7000, 0x8000,
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400358 0x9000, 0xA000, 0xB000, 0xC000, 0xD000, 0xE000, 0xF000, 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359};
360
361/* This is the Interrupt lookup table for Eth16i card */
362static unsigned int eth16i_irqmap[] __initdata = { 9, 10, 5, 15, 0 };
363#define NUM_OF_ISA_IRQS 4
364
365/* This is the Interrupt lookup table for Eth32i card */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400366static unsigned int eth32i_irqmap[] __initdata = { 3, 5, 7, 9, 10, 11, 12, 15, 0 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700367#define EISA_IRQ_REG 0xc89
368#define NUM_OF_EISA_IRQS 8
369
370static unsigned int eth16i_tx_buf_map[] = { 2048, 2048, 4096, 8192 };
371
372/* Use 0 for production, 1 for verification, >2 for debug */
373#ifndef ETH16I_DEBUG
374#define ETH16I_DEBUG 0
375#endif
376static unsigned int eth16i_debug = ETH16I_DEBUG;
377
378/* Information for each board */
379
380struct eth16i_local {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 unsigned char tx_started;
382 unsigned char tx_buf_busy;
383 unsigned short tx_queue; /* Number of packets in transmit buffer */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400384 unsigned short tx_queue_len;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385 unsigned int tx_buf_size;
386 unsigned long open_time;
387 unsigned long tx_buffered_packets;
388 unsigned long tx_buffered_bytes;
389 unsigned long col_16;
390 spinlock_t lock;
391};
392
393/* Function prototypes */
394
395static int eth16i_probe1(struct net_device *dev, int ioaddr);
396static int eth16i_check_signature(int ioaddr);
397static int eth16i_probe_port(int ioaddr);
398static void eth16i_set_port(int ioaddr, int porttype);
399static int eth16i_send_probe_packet(int ioaddr, unsigned char *b, int l);
400static int eth16i_receive_probe_packet(int ioaddr);
401static int eth16i_get_irq(int ioaddr);
402static int eth16i_read_eeprom(int ioaddr, int offset);
403static int eth16i_read_eeprom_word(int ioaddr);
404static void eth16i_eeprom_cmd(int ioaddr, unsigned char command);
405static int eth16i_open(struct net_device *dev);
406static int eth16i_close(struct net_device *dev);
Stephen Hemminger613573252009-08-31 19:50:58 +0000407static netdev_tx_t eth16i_tx(struct sk_buff *skb, struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408static void eth16i_rx(struct net_device *dev);
409static void eth16i_timeout(struct net_device *dev);
David Howells7d12e782006-10-05 14:55:46 +0100410static irqreturn_t eth16i_interrupt(int irq, void *dev_id);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411static void eth16i_reset(struct net_device *dev);
412static void eth16i_timeout(struct net_device *dev);
413static void eth16i_skip_packet(struct net_device *dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400414static void eth16i_multicast(struct net_device *dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700415static void eth16i_select_regbank(unsigned char regbank, int ioaddr);
416static void eth16i_initialize(struct net_device *dev, int boot);
417
418#if 0
419static int eth16i_set_irq(struct net_device *dev);
420#endif
421
422#ifdef MODULE
423static ushort eth16i_parse_mediatype(const char* s);
424#endif
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426static char cardname[] __initdata = "ICL EtherTeam 16i/32";
427
428static int __init do_eth16i_probe(struct net_device *dev)
429{
430 int i;
431 int ioaddr;
432 int base_addr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400433
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400434 if(eth16i_debug > 4)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435 printk(KERN_DEBUG "Probing started for %s\n", cardname);
436
437 if(base_addr > 0x1ff) /* Check only single location */
438 return eth16i_probe1(dev, base_addr);
439 else if(base_addr != 0) /* Don't probe at all */
440 return -ENXIO;
441
442 /* Seek card from the ISA io address space */
443 for(i = 0; (ioaddr = eth16i_portlist[i]) ; i++)
444 if(eth16i_probe1(dev, ioaddr) == 0)
445 return 0;
446
447 /* Seek card from the EISA io address space */
448 for(i = 0; (ioaddr = eth32i_portlist[i]) ; i++)
449 if(eth16i_probe1(dev, ioaddr) == 0)
450 return 0;
451
452 return -ENODEV;
453}
454
455#ifndef MODULE
456struct net_device * __init eth16i_probe(int unit)
457{
458 struct net_device *dev = alloc_etherdev(sizeof(struct eth16i_local));
459 int err;
460
461 if (!dev)
462 return ERR_PTR(-ENOMEM);
463
464 sprintf(dev->name, "eth%d", unit);
465 netdev_boot_setup_check(dev);
466
467 err = do_eth16i_probe(dev);
468 if (err)
469 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700470 return dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700471out:
472 free_netdev(dev);
473 return ERR_PTR(err);
474}
475#endif
476
Stephen Hemminger6d1ec782009-03-26 15:11:44 +0000477static const struct net_device_ops eth16i_netdev_ops = {
478 .ndo_open = eth16i_open,
479 .ndo_stop = eth16i_close,
480 .ndo_start_xmit = eth16i_tx,
481 .ndo_set_multicast_list = eth16i_multicast,
482 .ndo_tx_timeout = eth16i_timeout,
483 .ndo_change_mtu = eth_change_mtu,
484 .ndo_set_mac_address = eth_mac_addr,
485 .ndo_validate_addr = eth_validate_addr,
486};
487
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488static int __init eth16i_probe1(struct net_device *dev, int ioaddr)
489{
490 struct eth16i_local *lp = netdev_priv(dev);
491 static unsigned version_printed;
492 int retval;
493
494 /* Let's grab the region */
495 if (!request_region(ioaddr, ETH16I_IO_EXTENT, cardname))
496 return -EBUSY;
497
498 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400499 The MB86985 chip has on register which holds information in which
Linus Torvalds1da177e2005-04-16 15:20:36 -0700500 io address the chip lies. First read this register and compare
501 it to our current io address and if match then this could
502 be our chip.
503 */
504
505 if(ioaddr < 0x1000) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400506 if(eth16i_portlist[(inb(ioaddr + JUMPERLESS_CONFIG) & 0x07)]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700507 != ioaddr) {
508 retval = -ENODEV;
509 goto out;
510 }
511 }
512
513 /* Now we will go a bit deeper and try to find the chip's signature */
514
515 if(eth16i_check_signature(ioaddr) != 0) {
516 retval = -ENODEV;
517 goto out;
518 }
519
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400520 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521 Now it seems that we have found a ethernet chip in this particular
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400522 ioaddr. The MB86985 chip has this feature, that when you read a
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 certain register it will increase it's io base address to next
524 configurable slot. Now when we have found the chip, first thing is
525 to make sure that the chip's ioaddr will hold still here.
526 */
527
528 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
529 outb(0x00, ioaddr + TRANSCEIVER_MODE_REG);
530
531 outb(0x00, ioaddr + RESET); /* Reset some parts of chip */
532 BITSET(ioaddr + CONFIG_REG_0, BIT(7)); /* Disable the data link */
533
534 if( (eth16i_debug & version_printed++) == 0)
535 printk(KERN_INFO "%s", version);
536
537 dev->base_addr = ioaddr;
538 dev->irq = eth16i_get_irq(ioaddr);
539
540 /* Try to obtain interrupt vector */
541
542 if ((retval = request_irq(dev->irq, (void *)&eth16i_interrupt, 0, cardname, dev))) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400543 printk(KERN_WARNING "%s at %#3x, but is unusable due to conflicting IRQ %d.\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 cardname, ioaddr, dev->irq);
545 goto out;
546 }
547
548 printk(KERN_INFO "%s: %s at %#3x, IRQ %d, ",
549 dev->name, cardname, ioaddr, dev->irq);
550
551
552 /* Now we will have to lock the chip's io address */
553 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400554 outb(0x38, ioaddr + TRANSCEIVER_MODE_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700555
556 eth16i_initialize(dev, 1); /* Initialize rest of the chip's registers */
557
558 /* Now let's same some energy by shutting down the chip ;) */
559 BITCLR(ioaddr + CONFIG_REG_1, POWERUP);
560
561 /* Initialize the device structure */
Stephen Hemminger6d1ec782009-03-26 15:11:44 +0000562 dev->netdev_ops = &eth16i_netdev_ops;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563 dev->watchdog_timeo = TX_TIMEOUT;
564 spin_lock_init(&lp->lock);
b1fc5502005-05-12 20:11:55 -0400565
566 retval = register_netdev(dev);
567 if (retval)
568 goto out1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569 return 0;
b1fc5502005-05-12 20:11:55 -0400570out1:
571 free_irq(dev->irq, dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700572out:
573 release_region(ioaddr, ETH16I_IO_EXTENT);
574 return retval;
575}
576
577
578static void eth16i_initialize(struct net_device *dev, int boot)
579{
580 int ioaddr = dev->base_addr;
581 int i, node_w = 0;
582 unsigned char node_byte = 0;
583
584 /* Setup station address */
585 eth16i_select_regbank(NODE_ID_RB, ioaddr);
586 for(i = 0 ; i < 3 ; i++) {
587 unsigned short node_val = eth16i_read_eeprom(ioaddr, E_NODEID_0 + i);
588 ((unsigned short *)dev->dev_addr)[i] = ntohs(node_val);
589 }
590
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400591 for(i = 0; i < 6; i++) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592 outb( ((unsigned char *)dev->dev_addr)[i], ioaddr + NODE_ID_0 + i);
593 if(boot) {
594 printk("%02x", inb(ioaddr + NODE_ID_0 + i));
595 if(i != 5)
596 printk(":");
597 }
598 }
599
600 /* Now we will set multicast addresses to accept none */
601 eth16i_select_regbank(HASH_TABLE_RB, ioaddr);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400602 for(i = 0; i < 8; i++)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700603 outb(0x00, ioaddr + HASH_TABLE_0 + i);
604
605 /*
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400606 Now let's disable the transmitter and receiver, set the buffer ram
Linus Torvalds1da177e2005-04-16 15:20:36 -0700607 cycle time, bus width and buffer data path width. Also we shall
608 set transmit buffer size and total buffer size.
609 */
610
611 eth16i_select_regbank(2, ioaddr);
612
613 node_byte = 0;
614 node_w = eth16i_read_eeprom(ioaddr, E_PRODUCT_CFG);
615
616 if( (node_w & 0xFF00) == 0x0800)
617 node_byte |= BUFFER_WIDTH_8;
618
619 node_byte |= SRAM_BS1;
620
621 if( (node_w & 0x00FF) == 64)
622 node_byte |= SRAM_BS0;
623
624 node_byte |= DLC_EN | SRAM_CYCLE_TIME_100NS | (ETH16I_TX_BUF_SIZE << 2);
625
626 outb(node_byte, ioaddr + CONFIG_REG_0);
627
628 /* We shall halt the transmitting, if 16 collisions are detected */
629 outb(HALT_ON_16, ioaddr + COL_16_REG);
630
631#ifdef MODULE
632 /* if_port already set by init_module() */
633#else
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400634 dev->if_port = (dev->mem_start < E_PORT_FROM_EPROM) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 dev->mem_start : E_PORT_FROM_EPROM;
636#endif
637
638 /* Set interface port type */
639 if(boot) {
Joe Perches6fa59c92010-09-13 18:23:53 +0000640 static const char * const porttype[] = {
641 "BNC", "DIX", "TP", "AUTO", "FROM_EPROM"
642 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700643
644 switch(dev->if_port)
645 {
646
647 case E_PORT_FROM_EPROM:
648 dev->if_port = eth16i_read_eeprom(ioaddr, E_PORT_SELECT);
649 break;
650
651 case E_PORT_AUTO:
652 dev->if_port = eth16i_probe_port(ioaddr);
653 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400654
Linus Torvalds1da177e2005-04-16 15:20:36 -0700655 case E_PORT_BNC:
656 case E_PORT_TP:
657 case E_PORT_DIX:
658 break;
659 }
660
661 printk(" %s interface.\n", porttype[dev->if_port]);
662
663 eth16i_set_port(ioaddr, dev->if_port);
664 }
665
666 /* Set Receive Mode to normal operation */
667 outb(MODE_2, ioaddr + RECEIVE_MODE_REG);
668}
669
670static int eth16i_probe_port(int ioaddr)
671{
672 int i;
673 int retcode;
674 unsigned char dummy_packet[64];
675
676 /* Powerup the chip */
677 outb(0xc0 | POWERUP, ioaddr + CONFIG_REG_1);
678
679 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
680
681 eth16i_select_regbank(NODE_ID_RB, ioaddr);
682
683 for(i = 0; i < 6; i++) {
684 dummy_packet[i] = inb(ioaddr + NODE_ID_0 + i);
685 dummy_packet[i+6] = inb(ioaddr + NODE_ID_0 + i);
686 }
687
688 dummy_packet[12] = 0x00;
689 dummy_packet[13] = 0x04;
690 memset(dummy_packet + 14, 0, sizeof(dummy_packet) - 14);
691
692 eth16i_select_regbank(2, ioaddr);
693
694 for(i = 0; i < 3; i++) {
695 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
696 BITCLR(ioaddr + CONFIG_REG_0, DLC_EN);
697 eth16i_set_port(ioaddr, i);
698
699 if(eth16i_debug > 1)
700 printk(KERN_DEBUG "Set port number %d\n", i);
701
702 retcode = eth16i_send_probe_packet(ioaddr, dummy_packet, 64);
703 if(retcode == 0) {
704 retcode = eth16i_receive_probe_packet(ioaddr);
705 if(retcode != -1) {
706 if(eth16i_debug > 1)
707 printk(KERN_DEBUG "Eth16i interface port found at %d\n", i);
708 return i;
709 }
710 }
711 else {
712 if(eth16i_debug > 1)
713 printk(KERN_DEBUG "TRANSMIT_DONE timeout when probing interface port\n");
714 }
715 }
716
717 if( eth16i_debug > 1)
718 printk(KERN_DEBUG "Using default port\n");
719
720 return E_PORT_BNC;
721}
722
723static void eth16i_set_port(int ioaddr, int porttype)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400724{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 unsigned short temp = 0;
726
727 eth16i_select_regbank(TRANSCEIVER_MODE_RB, ioaddr);
728 outb(LOOPBACK_CONTROL, ioaddr + TRANSMIT_MODE_REG);
729
730 temp |= DIS_AUTO_PORT_SEL;
731
732 switch(porttype) {
733
734 case E_PORT_BNC :
735 temp |= AUI_SELECT;
736 break;
737
738 case E_PORT_TP :
739 break;
740
741 case E_PORT_DIX :
742 temp |= AUI_SELECT;
743 BITSET(ioaddr + TRANSMIT_MODE_REG, CONTROL_OUTPUT);
744 break;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400745 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700746
747 outb(temp, ioaddr + TRANSCEIVER_MODE_REG);
748
749 if(eth16i_debug > 1) {
750 printk(KERN_DEBUG "TRANSMIT_MODE_REG = %x\n", inb(ioaddr + TRANSMIT_MODE_REG));
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400751 printk(KERN_DEBUG "TRANSCEIVER_MODE_REG = %x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752 inb(ioaddr+TRANSCEIVER_MODE_REG));
753 }
754}
755
756static int eth16i_send_probe_packet(int ioaddr, unsigned char *b, int l)
757{
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800758 unsigned long starttime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700759
760 outb(0xff, ioaddr + TX_STATUS_REG);
761
762 outw(l, ioaddr + DATAPORT);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400763 outsw(ioaddr + DATAPORT, (unsigned short *)b, (l + 1) >> 1);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700764
765 starttime = jiffies;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400766 outb(TX_START | 1, ioaddr + TRANSMIT_START_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767
768 while( (inb(ioaddr + TX_STATUS_REG) & 0x80) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800769 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700770 return -1;
771 }
772 }
773
774 return 0;
775}
776
777static int eth16i_receive_probe_packet(int ioaddr)
778{
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800779 unsigned long starttime;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
781 starttime = jiffies;
782
783 while((inb(ioaddr + TX_STATUS_REG) & 0x20) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800784 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700785
786 if(eth16i_debug > 1)
787 printk(KERN_DEBUG "Timeout occurred waiting transmit packet received\n");
788 starttime = jiffies;
789 while((inb(ioaddr + RX_STATUS_REG) & 0x80) == 0) {
Marcelo Feitoza Parisiff5688a2006-01-09 18:37:15 -0800790 if( time_after(jiffies, starttime + TX_TIMEOUT)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700791 if(eth16i_debug > 1)
792 printk(KERN_DEBUG "Timeout occurred waiting receive packet\n");
793 return -1;
794 }
795 }
796
797 if(eth16i_debug > 1)
798 printk(KERN_DEBUG "RECEIVE_PACKET\n");
Eric Dumazet807540b2010-09-23 05:40:09 +0000799 return 0; /* Found receive packet */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800 }
801 }
802
803 if(eth16i_debug > 1) {
804 printk(KERN_DEBUG "TRANSMIT_PACKET_RECEIVED %x\n", inb(ioaddr + TX_STATUS_REG));
805 printk(KERN_DEBUG "RX_STATUS_REG = %x\n", inb(ioaddr + RX_STATUS_REG));
806 }
807
Eric Dumazet807540b2010-09-23 05:40:09 +0000808 return 0; /* Return success */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700809}
810
811#if 0
812static int eth16i_set_irq(struct net_device* dev)
813{
814 const int ioaddr = dev->base_addr;
815 const int irq = dev->irq;
816 int i = 0;
817
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400818 if(ioaddr < 0x1000) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700819 while(eth16i_irqmap[i] && eth16i_irqmap[i] != irq)
820 i++;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822 if(i < NUM_OF_ISA_IRQS) {
823 u8 cbyte = inb(ioaddr + JUMPERLESS_CONFIG);
824 cbyte = (cbyte & 0x3F) | (i << 6);
825 outb(cbyte, ioaddr + JUMPERLESS_CONFIG);
826 return 0;
827 }
828 }
829 else {
830 printk(KERN_NOTICE "%s: EISA Interrupt cannot be set. Use EISA Configuration utility.\n", dev->name);
831 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400832
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833 return -1;
834
835}
836#endif
837
838static int __init eth16i_get_irq(int ioaddr)
839{
840 unsigned char cbyte;
841
842 if( ioaddr < 0x1000) {
843 cbyte = inb(ioaddr + JUMPERLESS_CONFIG);
Eric Dumazet807540b2010-09-23 05:40:09 +0000844 return eth16i_irqmap[((cbyte & 0xC0) >> 6)];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 } else { /* Oh..the card is EISA so method getting IRQ different */
846 unsigned short index = 0;
847 cbyte = inb(ioaddr + EISA_IRQ_REG);
848 while( (cbyte & 0x01) == 0) {
849 cbyte = cbyte >> 1;
850 index++;
851 }
Eric Dumazet807540b2010-09-23 05:40:09 +0000852 return eth32i_irqmap[index];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853 }
854}
855
856static int __init eth16i_check_signature(int ioaddr)
857{
858 int i;
859 unsigned char creg[4] = { 0 };
860
861 for(i = 0; i < 4 ; i++) {
862
863 creg[i] = inb(ioaddr + TRANSMIT_MODE_REG + i);
864
865 if(eth16i_debug > 1)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400866 printk("eth16i: read signature byte %x at %x\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700867 creg[i],
868 ioaddr + TRANSMIT_MODE_REG + i);
869 }
870
871 creg[0] &= 0x0F; /* Mask collision cnr */
872 creg[2] &= 0x7F; /* Mask DCLEN bit */
873
874#if 0
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400875 /*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876 This was removed because the card was sometimes left to state
877 from which it couldn't be find anymore. If there is need
878 to more strict check still this have to be fixed.
879 */
880 if( ! ((creg[0] == 0x06) && (creg[1] == 0x41)) ) {
881 if(creg[1] != 0x42)
882 return -1;
883 }
884#endif
885
886 if( !((creg[2] == 0x36) && (creg[3] == 0xE0)) ) {
887 creg[2] &= 0x40;
888 creg[3] &= 0x03;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400889
Linus Torvalds1da177e2005-04-16 15:20:36 -0700890 if( !((creg[2] == 0x40) && (creg[3] == 0x00)) )
891 return -1;
892 }
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400893
Linus Torvalds1da177e2005-04-16 15:20:36 -0700894 if(eth16i_read_eeprom(ioaddr, E_NODEID_0) != 0)
895 return -1;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400896
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897 if((eth16i_read_eeprom(ioaddr, E_NODEID_1) & 0xFF00) != 0x4B00)
898 return -1;
899
900 return 0;
901}
902
903static int eth16i_read_eeprom(int ioaddr, int offset)
904{
905 int data = 0;
906
907 eth16i_eeprom_cmd(ioaddr, EEPROM_READ | offset);
908 outb(CS_1, ioaddr + EEPROM_CTRL_REG);
909 data = eth16i_read_eeprom_word(ioaddr);
910 outb(CS_0 | SK_0, ioaddr + EEPROM_CTRL_REG);
911
Eric Dumazet807540b2010-09-23 05:40:09 +0000912 return data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913}
914
915static int eth16i_read_eeprom_word(int ioaddr)
916{
917 int i;
918 int data = 0;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400919
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 for(i = 16; i > 0; i--) {
921 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
922 eeprom_slow_io();
923 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
924 eeprom_slow_io();
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400925 data = (data << 1) |
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926 ((inb(ioaddr + EEPROM_DATA_REG) & DI_1) ? 1 : 0);
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400927
Linus Torvalds1da177e2005-04-16 15:20:36 -0700928 eeprom_slow_io();
929 }
930
Eric Dumazet807540b2010-09-23 05:40:09 +0000931 return data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932}
933
934static void eth16i_eeprom_cmd(int ioaddr, unsigned char command)
935{
936 int i;
937
938 outb(CS_0 | SK_0, ioaddr + EEPROM_CTRL_REG);
939 outb(DI_0, ioaddr + EEPROM_DATA_REG);
940 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
941 outb(DI_1, ioaddr + EEPROM_DATA_REG);
942 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
943
944 for(i = 7; i >= 0; i--) {
945 short cmd = ( (command & (1 << i)) ? DI_1 : DI_0 );
946 outb(cmd, ioaddr + EEPROM_DATA_REG);
947 outb(CS_1 | SK_0, ioaddr + EEPROM_CTRL_REG);
948 eeprom_slow_io();
949 outb(CS_1 | SK_1, ioaddr + EEPROM_CTRL_REG);
950 eeprom_slow_io();
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400951 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952}
953
954static int eth16i_open(struct net_device *dev)
955{
956 struct eth16i_local *lp = netdev_priv(dev);
957 int ioaddr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400958
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 /* Powerup the chip */
960 outb(0xc0 | POWERUP, ioaddr + CONFIG_REG_1);
961
962 /* Initialize the chip */
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400963 eth16i_initialize(dev, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964
965 /* Set the transmit buffer size */
966 lp->tx_buf_size = eth16i_tx_buf_map[ETH16I_TX_BUF_SIZE & 0x03];
967
968 if(eth16i_debug > 0)
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400969 printk(KERN_DEBUG "%s: transmit buffer size %d\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -0700970 dev->name, lp->tx_buf_size);
971
972 /* Now enable Transmitter and Receiver sections */
973 BITCLR(ioaddr + CONFIG_REG_0, DLC_EN);
974
975 /* Now switch to register bank 2, for run time operation */
976 eth16i_select_regbank(2, ioaddr);
977
978 lp->open_time = jiffies;
979 lp->tx_started = 0;
980 lp->tx_queue = 0;
981 lp->tx_queue_len = 0;
982
983 /* Turn on interrupts*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400984 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700985
986 netif_start_queue(dev);
987 return 0;
988}
989
990static int eth16i_close(struct net_device *dev)
991{
992 struct eth16i_local *lp = netdev_priv(dev);
993 int ioaddr = dev->base_addr;
994
995 eth16i_reset(dev);
996
997 /* Turn off interrupts*/
Jeff Garzik6aa20a22006-09-13 13:24:59 -0400998 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999
1000 netif_stop_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001001
Linus Torvalds1da177e2005-04-16 15:20:36 -07001002 lp->open_time = 0;
1003
1004 /* Disable transmit and receive */
1005 BITSET(ioaddr + CONFIG_REG_0, DLC_EN);
1006
1007 /* Reset the chip */
1008 /* outb(0xff, ioaddr + RESET); */
1009 /* outw(0xffff, ioaddr + TX_STATUS_REG); */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001010
Linus Torvalds1da177e2005-04-16 15:20:36 -07001011 outb(0x00, ioaddr + CONFIG_REG_1);
1012
1013 return 0;
1014}
1015
1016static void eth16i_timeout(struct net_device *dev)
1017{
1018 struct eth16i_local *lp = netdev_priv(dev);
1019 int ioaddr = dev->base_addr;
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001020 /*
1021 If we get here, some higher level has decided that
1022 we are broken. There should really be a "kick me"
1023 function call instead.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001024 */
1025
1026 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001027 printk(KERN_WARNING "%s: transmit timed out with status %04x, %s ?\n",
Linus Torvalds1da177e2005-04-16 15:20:36 -07001028 dev->name,
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001029 inw(ioaddr + TX_STATUS_REG), (inb(ioaddr + TX_STATUS_REG) & TX_DONE) ?
Linus Torvalds1da177e2005-04-16 15:20:36 -07001030 "IRQ conflict" : "network cable problem");
1031
Eric Dumazet1ae5dc32010-05-10 05:01:31 -07001032 dev->trans_start = jiffies; /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001033
1034 /* Let's dump all registers */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001035 if(eth16i_debug > 0) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036 printk(KERN_DEBUG "%s: timeout: %02x %02x %02x %02x %02x %02x %02x %02x.\n",
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001037 dev->name, inb(ioaddr + 0),
1038 inb(ioaddr + 1), inb(ioaddr + 2),
1039 inb(ioaddr + 3), inb(ioaddr + 4),
Linus Torvalds1da177e2005-04-16 15:20:36 -07001040 inb(ioaddr + 5),
1041 inb(ioaddr + 6), inb(ioaddr + 7));
1042
1043 printk(KERN_DEBUG "%s: transmit start reg: %02x. collision reg %02x\n",
1044 dev->name, inb(ioaddr + TRANSMIT_START_REG),
1045 inb(ioaddr + COL_16_REG));
1046 printk(KERN_DEBUG "lp->tx_queue = %d\n", lp->tx_queue);
1047 printk(KERN_DEBUG "lp->tx_queue_len = %d\n", lp->tx_queue_len);
1048 printk(KERN_DEBUG "lp->tx_started = %d\n", lp->tx_started);
1049 }
Jeff Garzik09f75cd2007-10-03 17:41:50 -07001050 dev->stats.tx_errors++;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001051 eth16i_reset(dev);
Eric Dumazet1ae5dc32010-05-10 05:01:31 -07001052 dev->trans_start = jiffies; /* prevent tx timeout */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001053 outw(ETH16I_INTR_ON, ioaddr + TX_INTR_REG);
1054 netif_wake_queue(dev);
1055}
1056
Stephen Hemminger613573252009-08-31 19:50:58 +00001057static netdev_tx_t eth16i_tx(struct sk_buff *skb, struct net_device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058{
1059 struct eth16i_local *lp = netdev_priv(dev);
1060 int ioaddr = dev->base_addr;
1061 int status = 0;
1062 ushort length = skb->len;
1063 unsigned char *buf;
1064 unsigned long flags;
1065
1066 if (length < ETH_ZLEN) {
Herbert Xu5b057c62006-06-23 02:06:41 -07001067 if (skb_padto(skb, ETH_ZLEN))
Patrick McHardy6ed10652009-06-23 06:03:08 +00001068 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 length = ETH_ZLEN;
1070 }
1071 buf = skb->data;
1072
1073 netif_stop_queue(dev);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001074
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 /* Turn off TX interrupts */
1076 outw(ETH16I_INTR_OFF, ioaddr + TX_INTR_REG);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001077
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 /* We would be better doing the disable_irq tricks the 3c509 does,
1079 that would make this suck a lot less */
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001080
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081 spin_lock_irqsave(&lp->lock, flags);
1082
1083 if( (length + 2) > (lp->tx_buf_size - lp->tx_queue_len)) {
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001084 if(eth16i_debug > 0)
1085 printk(KERN_WARNING "%s: Transmit buffer full.\n", dev->name);
1086 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 else {
1088 outw(length, ioaddr + DATAPORT);
1089
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001090 if( ioaddr < 0x1000 )
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
1092 else {
1093 unsigned char frag = length % 4;
1094 outsl(ioaddr + DATAPORT, buf, length >> 2);
1095 if( frag != 0 ) {
1096 outsw(ioaddr + DATAPORT, (buf + (length & 0xFFFC)), 1);
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001097 if( frag == 3 )
1098 outsw(ioaddr + DATAPORT,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099 (buf + (length & 0xFFFC) + 2), 1);
1100 }
1101 }
1102 lp->tx_buffered_packets++;
1103 lp->tx_buffered_bytes = length;
1104 lp->tx_queue++;
1105 lp->tx_queue_len += length + 2;
1106 }
1107 lp->tx_buf_busy = 0;
1108
1109 if(lp->tx_started == 0) {
1110 /* If the transmitter is idle..always trigger a transmit */
1111 outb(TX_START | lp->tx_queue, ioaddr + TRANSMIT_START_REG);
1112 lp->tx_queue = 0;
1113 lp->tx_queue_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114 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);
Patrick McHardy6ed10652009-06-23 06:03:08 +00001129 return NETDEV_TX_OK;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001130}
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
Jiri Pirko4cd24ea2010-02-08 04:30:35 +00001362 if (!netdev_mc_empty(dev) || 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) {
Kulikov Vasiliy04d58212010-07-14 17:57:19 -07001447 if (this_dev != 0) { /* Only autoprobe 1st one */
1448 free_netdev(dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001449 break;
Kulikov Vasiliy04d58212010-07-14 17:57:19 -07001450 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001451
1452 printk(KERN_NOTICE "eth16i.c: Presently autoprobing (not recommended) for a single card.\n");
1453 }
1454
1455 if (do_eth16i_probe(dev) == 0) {
b1fc5502005-05-12 20:11:55 -04001456 dev_eth16i[found++] = dev;
1457 continue;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001458 }
1459 printk(KERN_WARNING "eth16i.c No Eth16i card found (i/o = 0x%x).\n",
1460 io[this_dev]);
1461 free_netdev(dev);
1462 break;
1463 }
1464 if (found)
1465 return 0;
1466 return -ENXIO;
1467}
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001468
Al Viroafc8eb42006-06-14 18:50:53 -04001469void __exit cleanup_module(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001470{
1471 int this_dev;
1472
1473 for(this_dev = 0; this_dev < MAX_ETH16I_CARDS; this_dev++) {
1474 struct net_device *dev = dev_eth16i[this_dev];
Jeff Garzik6aa20a22006-09-13 13:24:59 -04001475
Wang Chen4cf16532008-11-12 23:38:14 -08001476 if (netdev_priv(dev)) {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001477 unregister_netdev(dev);
1478 free_irq(dev->irq, dev);
1479 release_region(dev->base_addr, ETH16I_IO_EXTENT);
1480 free_netdev(dev);
1481 }
1482 }
1483}
1484#endif /* MODULE */