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authorAdrian Bunk <bunk@stusta.de>2005-05-12 22:27:35 -0400
committerJeff Garzik <jgarzik@pobox.com>2005-05-12 22:27:35 -0400
commit5aa83a4c0a1568257ff7e249d39af64f75978b97 (patch)
treed7e2922e7a72b5083e2495616ac261c6ce300a80
parent88d7bd8cb9eb8d64bf7997600b0d64f7834047c5 (diff)
[PATCH] remove two obsolete net drivers
The options FMV18X and SK_G16 do depend on the non-available CONFIG_OBSOLETE even in kernel 2.4 - IOW, the last time it was able to select them was in kernel 2.2 (or even before). Since it seems noone misses these drivers, this patch removes them. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Diffstat
-rw-r--r--Documentation/networking/multicast.txt1
-rw-r--r--Documentation/networking/net-modules.txt3
-rw-r--r--drivers/net/Kconfig23
-rw-r--r--drivers/net/Makefile2
-rw-r--r--drivers/net/Space.c6
-rw-r--r--drivers/net/fmv18x.c689
-rw-r--r--drivers/net/sk_g16.c2066
-rw-r--r--drivers/net/sk_g16.h165
8 files changed, 0 insertions, 2955 deletions
diff --git a/Documentation/networking/multicast.txt b/Documentation/networking/multicast.txt
index 5049a64313d1..b06c8c69266f 100644
--- a/Documentation/networking/multicast.txt
+++ b/Documentation/networking/multicast.txt
@@ -47,7 +47,6 @@ ni52 <------------------ Buggy ------------------>
47ni65 YES YES YES Software(#) 47ni65 YES YES YES Software(#)
48seeq NO NO NO N/A 48seeq NO NO NO N/A
49sgiseek <------------------ Buggy ------------------> 49sgiseek <------------------ Buggy ------------------>
50sk_g16 NO NO YES N/A
51smc-ultra YES YES YES Hardware 50smc-ultra YES YES YES Hardware
52sunlance YES YES YES Hardware 51sunlance YES YES YES Hardware
53tulip YES YES YES Hardware 52tulip YES YES YES Hardware
diff --git a/Documentation/networking/net-modules.txt b/Documentation/networking/net-modules.txt
index 3830a83513d2..0b27863f155c 100644
--- a/Documentation/networking/net-modules.txt
+++ b/Documentation/networking/net-modules.txt
@@ -284,9 +284,6 @@ ppp.c:
284seeq8005.c: *Not modularized* 284seeq8005.c: *Not modularized*
285 (Probes ports: 0x300, 0x320, 0x340, 0x360) 285 (Probes ports: 0x300, 0x320, 0x340, 0x360)
286 286
287sk_g16.c: *Not modularized*
288 (Probes ports: 0x100, 0x180, 0x208, 0x220m 0x288, 0x320, 0x328, 0x390)
289
290skeleton.c: *Skeleton* 287skeleton.c: *Skeleton*
291 288
292slhc.c: 289slhc.c:
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 3a0a55b62aaf..20bdc12d5f21 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -989,21 +989,6 @@ config EEXPRESS_PRO
989 <file:Documentation/networking/net-modules.txt>. The module 989 <file:Documentation/networking/net-modules.txt>. The module
990 will be called eepro. 990 will be called eepro.
991 991
992config FMV18X
993 tristate "FMV-181/182/183/184 support (OBSOLETE)"
994 depends on NET_ISA && OBSOLETE
995 ---help---
996 If you have a Fujitsu FMV-181/182/183/184 network (Ethernet) card,
997 say Y and read the Ethernet-HOWTO, available from
998 <http://www.tldp.org/docs.html#howto>.
999
1000 If you use an FMV-183 or FMV-184 and it is not working, you may need
1001 to disable Plug & Play mode of the card.
1002
1003 To compile this driver as a module, choose M here and read
1004 <file:Documentation/networking/net-modules.txt>. The module
1005 will be called fmv18x.
1006
1007config HPLAN_PLUS 992config HPLAN_PLUS
1008 tristate "HP PCLAN+ (27247B and 27252A) support" 993 tristate "HP PCLAN+ (27247B and 27252A) support"
1009 depends on NET_ISA 994 depends on NET_ISA
@@ -1092,14 +1077,6 @@ config SEEQ8005
1092 <file:Documentation/networking/net-modules.txt>. The module 1077 <file:Documentation/networking/net-modules.txt>. The module
1093 will be called seeq8005. 1078 will be called seeq8005.
1094 1079
1095config SK_G16
1096 tristate "SK_G16 support (OBSOLETE)"
1097 depends on NET_ISA && OBSOLETE
1098 help
1099 If you have a network (Ethernet) card of this type, say Y and read
1100 the Ethernet-HOWTO, available from
1101 <http://www.tldp.org/docs.html#howto>.
1102
1103config SKMC 1080config SKMC
1104 tristate "SKnet MCA support" 1081 tristate "SKnet MCA support"
1105 depends on NET_ETHERNET && MCA && BROKEN 1082 depends on NET_ETHERNET && MCA && BROKEN
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 6202b10dbb4d..b52026109c21 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -73,7 +73,6 @@ obj-$(CONFIG_MAC8390) += mac8390.o 8390.o
73obj-$(CONFIG_APNE) += apne.o 8390.o 73obj-$(CONFIG_APNE) += apne.o 8390.o
74obj-$(CONFIG_PCMCIA_PCNET) += 8390.o 74obj-$(CONFIG_PCMCIA_PCNET) += 8390.o
75obj-$(CONFIG_SHAPER) += shaper.o 75obj-$(CONFIG_SHAPER) += shaper.o
76obj-$(CONFIG_SK_G16) += sk_g16.o
77obj-$(CONFIG_HP100) += hp100.o 76obj-$(CONFIG_HP100) += hp100.o
78obj-$(CONFIG_SMC9194) += smc9194.o 77obj-$(CONFIG_SMC9194) += smc9194.o
79obj-$(CONFIG_FEC) += fec.o 78obj-$(CONFIG_FEC) += fec.o
@@ -121,7 +120,6 @@ obj-$(CONFIG_DEFXX) += defxx.o
121obj-$(CONFIG_SGISEEQ) += sgiseeq.o 120obj-$(CONFIG_SGISEEQ) += sgiseeq.o
122obj-$(CONFIG_SGI_O2MACE_ETH) += meth.o 121obj-$(CONFIG_SGI_O2MACE_ETH) += meth.o
123obj-$(CONFIG_AT1700) += at1700.o 122obj-$(CONFIG_AT1700) += at1700.o
124obj-$(CONFIG_FMV18X) += fmv18x.o
125obj-$(CONFIG_EL1) += 3c501.o 123obj-$(CONFIG_EL1) += 3c501.o
126obj-$(CONFIG_EL16) += 3c507.o 124obj-$(CONFIG_EL16) += 3c507.o
127obj-$(CONFIG_ELMC) += 3c523.o 125obj-$(CONFIG_ELMC) += 3c523.o
diff --git a/drivers/net/Space.c b/drivers/net/Space.c
index fb433325aa27..3707df6b0cfa 100644
--- a/drivers/net/Space.c
+++ b/drivers/net/Space.c
@@ -210,9 +210,6 @@ static struct devprobe2 isa_probes[] __initdata = {
210#ifdef CONFIG_AT1700 210#ifdef CONFIG_AT1700
211 {at1700_probe, 0}, 211 {at1700_probe, 0},
212#endif 212#endif
213#ifdef CONFIG_FMV18X /* Fujitsu FMV-181/182 */
214 {fmv18x_probe, 0},
215#endif
216#ifdef CONFIG_ETH16I 213#ifdef CONFIG_ETH16I
217 {eth16i_probe, 0}, /* ICL EtherTeam 16i/32 */ 214 {eth16i_probe, 0}, /* ICL EtherTeam 16i/32 */
218#endif 215#endif
@@ -243,9 +240,6 @@ static struct devprobe2 isa_probes[] __initdata = {
243#ifdef CONFIG_ELPLUS /* 3c505 */ 240#ifdef CONFIG_ELPLUS /* 3c505 */
244 {elplus_probe, 0}, 241 {elplus_probe, 0},
245#endif 242#endif
246#ifdef CONFIG_SK_G16
247 {SK_init, 0},
248#endif
249#ifdef CONFIG_NI5010 243#ifdef CONFIG_NI5010
250 {ni5010_probe, 0}, 244 {ni5010_probe, 0},
251#endif 245#endif
diff --git a/drivers/net/fmv18x.c b/drivers/net/fmv18x.c
deleted file mode 100644
index 04c748523471..000000000000
--- a/drivers/net/fmv18x.c
+++ /dev/null
@@ -1,689 +0,0 @@
1/* fmv18x.c: A network device driver for the Fujitsu FMV-181/182/183/184.
2
3 Original: at1700.c (1993-94 by Donald Becker).
4 Copyright 1993 United States Government as represented by the
5 Director, National Security Agency.
6 The author may be reached as becker@scyld.com, or C/O
7 Scyld Computing Corporation
8 410 Severn Ave., Suite 210
9 Annapolis MD 21403
10
11 Modified by Yutaka TAMIYA (tamy@flab.fujitsu.co.jp)
12 Copyright 1994 Fujitsu Laboratories Ltd.
13 Special thanks to:
14 Masayoshi UTAKA (utaka@ace.yk.fujitsu.co.jp)
15 for testing this driver.
16 H. NEGISHI (agy, negishi@sun45.psd.cs.fujitsu.co.jp)
17 for suggestion of some program modification.
18 Masahiro SEKIGUCHI <seki@sysrap.cs.fujitsu.co.jp>
19 for suggestion of some program modification.
20 Kazutoshi MORIOKA (morioka@aurora.oaks.cs.fujitsu.co.jp)
21 for testing this driver.
22
23 This software may be used and distributed according to the terms
24 of the GNU General Public License, incorporated herein by reference.
25
26 This is a device driver for the Fujitsu FMV-181/182/183/184, which
27 is a straight-forward Fujitsu MB86965 implementation.
28
29 Sources:
30 at1700.c
31 The Fujitsu MB86965 datasheet.
32 The Fujitsu FMV-181/182 user's guide
33*/
34
35static const char version[] =
36 "fmv18x.c:v2.2.0 09/24/98 Yutaka TAMIYA (tamy@flab.fujitsu.co.jp)\n";
37
38#include <linux/module.h>
39#include <linux/kernel.h>
40#include <linux/types.h>
41#include <linux/fcntl.h>
42#include <linux/interrupt.h>
43#include <linux/ioport.h>
44#include <linux/in.h>
45#include <linux/slab.h>
46#include <linux/string.h>
47#include <linux/init.h>
48#include <linux/errno.h>
49#include <linux/spinlock.h>
50#include <linux/netdevice.h>
51#include <linux/etherdevice.h>
52#include <linux/skbuff.h>
53#include <linux/delay.h>
54#include <linux/bitops.h>
55
56#include <asm/system.h>
57#include <asm/io.h>
58#include <asm/dma.h>
59
60#define DRV_NAME "fmv18x"
61
62static unsigned fmv18x_probe_list[] __initdata = {
63 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x300, 0x340, 0
64};
65
66/* use 0 for production, 1 for verification, >2 for debug */
67#ifndef NET_DEBUG
68#define NET_DEBUG 1
69#endif
70static unsigned int net_debug = NET_DEBUG;
71
72typedef unsigned char uchar;
73
74/* Information that need to be kept for each board. */
75struct net_local {
76 struct net_device_stats stats;
77 long open_time; /* Useless example local info. */
78 uint tx_started:1; /* Number of packet on the Tx queue. */
79 uint tx_queue_ready:1; /* Tx queue is ready to be sent. */
80 uint rx_started:1; /* Packets are Rxing. */
81 uchar tx_queue; /* Number of packet on the Tx queue. */
82 ushort tx_queue_len; /* Current length of the Tx queue. */
83 spinlock_t lock;
84};
85
86
87/* Offsets from the base address. */
88#define STATUS 0
89#define TX_STATUS 0
90#define RX_STATUS 1
91#define TX_INTR 2 /* Bit-mapped interrupt enable registers. */
92#define RX_INTR 3
93#define TX_MODE 4
94#define RX_MODE 5
95#define CONFIG_0 6 /* Misc. configuration settings. */
96#define CONFIG_1 7
97/* Run-time register bank 2 definitions. */
98#define DATAPORT 8 /* Word-wide DMA or programmed-I/O dataport. */
99#define TX_START 10
100#define COL16CNTL 11 /* Controll Reg for 16 collisions */
101#define MODE13 13
102/* Fujitsu FMV-18x Card Configuration */
103#define FJ_STATUS0 0x10
104#define FJ_STATUS1 0x11
105#define FJ_CONFIG0 0x12
106#define FJ_CONFIG1 0x13
107#define FJ_MACADDR 0x14 /* 0x14 - 0x19 */
108#define FJ_BUFCNTL 0x1A
109#define FJ_BUFDATA 0x1C
110#define FMV18X_IO_EXTENT 32
111
112/* Index to functions, as function prototypes. */
113
114static int fmv18x_probe1(struct net_device *dev, short ioaddr);
115static int net_open(struct net_device *dev);
116static int net_send_packet(struct sk_buff *skb, struct net_device *dev);
117static irqreturn_t net_interrupt(int irq, void *dev_id, struct pt_regs *regs);
118static void net_rx(struct net_device *dev);
119static void net_timeout(struct net_device *dev);
120static int net_close(struct net_device *dev);
121static struct net_device_stats *net_get_stats(struct net_device *dev);
122static void set_multicast_list(struct net_device *dev);
123
124
125/* Check for a network adaptor of this type, and return '0' iff one exists.
126 If dev->base_addr == 0, probe all likely locations.
127 If dev->base_addr == 1, always return failure.
128 If dev->base_addr == 2, allocate space for the device and return success
129 (detachable devices only).
130 */
131
132static int io = 0x220;
133static int irq;
134
135struct net_device * __init fmv18x_probe(int unit)
136{
137 struct net_device *dev = alloc_etherdev(sizeof(struct net_local));
138 unsigned *port;
139 int err = 0;
140
141 if (!dev)
142 return ERR_PTR(-ENODEV);
143
144 if (unit >= 0) {
145 sprintf(dev->name, "eth%d", unit);
146 netdev_boot_setup_check(dev);
147 io = dev->base_addr;
148 irq = dev->irq;
149 }
150
151 SET_MODULE_OWNER(dev);
152
153 if (io > 0x1ff) { /* Check a single specified location. */
154 err = fmv18x_probe1(dev, io);
155 } else if (io != 0) { /* Don't probe at all. */
156 err = -ENXIO;
157 } else {
158 for (port = fmv18x_probe_list; *port; port++)
159 if (fmv18x_probe1(dev, *port) == 0)
160 break;
161 if (!*port)
162 err = -ENODEV;
163 }
164 if (err)
165 goto out;
166 err = register_netdev(dev);
167 if (err)
168 goto out1;
169 return dev;
170out1:
171 free_irq(dev->irq, dev);
172 release_region(dev->base_addr, FMV18X_IO_EXTENT);
173out:
174 free_netdev(dev);
175 return ERR_PTR(err);
176}
177
178/* The Fujitsu datasheet suggests that the NIC be probed for by checking its
179 "signature", the default bit pattern after a reset. This *doesn't* work --
180 there is no way to reset the bus interface without a complete power-cycle!
181
182 It turns out that ATI came to the same conclusion I did: the only thing
183 that can be done is checking a few bits and then diving right into MAC
184 address check. */
185
186static int __init fmv18x_probe1(struct net_device *dev, short ioaddr)
187{
188 char irqmap[4] = {3, 7, 10, 15};
189 char irqmap_pnp[8] = {3, 4, 5, 7, 9, 10, 11, 15};
190 unsigned int i, retval;
191 struct net_local *lp;
192
193 /* Resetting the chip doesn't reset the ISA interface, so don't bother.
194 That means we have to be careful with the register values we probe for.
195 */
196
197 if (!request_region(ioaddr, FMV18X_IO_EXTENT, DRV_NAME))
198 return -EBUSY;
199
200 dev->irq = irq;
201 dev->base_addr = ioaddr;
202
203 /* Check I/O address configuration and Fujitsu vendor code */
204 if (inb(ioaddr+FJ_MACADDR ) != 0x00
205 || inb(ioaddr+FJ_MACADDR+1) != 0x00
206 || inb(ioaddr+FJ_MACADDR+2) != 0x0e) {
207 retval = -ENODEV;
208 goto out;
209 }
210
211 /* Check PnP mode for FMV-183/184/183A/184A. */
212 /* This PnP routine is very poor. IO and IRQ should be known. */
213 if (inb(ioaddr + FJ_STATUS1) & 0x20) {
214 for (i = 0; i < 8; i++) {
215 if (dev->irq == irqmap_pnp[i])
216 break;
217 }
218 if (i == 8) {
219 retval = -ENODEV;
220 goto out;
221 }
222 } else {
223 if (fmv18x_probe_list[inb(ioaddr + FJ_CONFIG0) & 0x07] != ioaddr)
224 return -ENODEV;
225 dev->irq = irqmap[(inb(ioaddr + FJ_CONFIG0)>>6) & 0x03];
226 }
227
228 /* Snarf the interrupt vector now. */
229 retval = request_irq(dev->irq, &net_interrupt, 0, DRV_NAME, dev);
230 if (retval) {
231 printk ("FMV-18x found at %#3x, but it's unusable due to a conflict on"
232 "IRQ %d.\n", ioaddr, dev->irq);
233 goto out;
234 }
235
236 printk("%s: FMV-18x found at %#3x, IRQ %d, address ", dev->name,
237 ioaddr, dev->irq);
238
239 for(i = 0; i < 6; i++) {
240 unsigned char val = inb(ioaddr + FJ_MACADDR + i);
241 printk("%02x", val);
242 dev->dev_addr[i] = val;
243 }
244
245 /* "FJ_STATUS0" 12 bit 0x0400 means use regular 100 ohm 10baseT signals,
246 rather than 150 ohm shielded twisted pair compensation.
247 0x0000 == auto-sense the interface
248 0x0800 == use TP interface
249 0x1800 == use coax interface
250 */
251 {
252 const char *porttype[] = {"auto-sense", "10baseT", "auto-sense", "10base2/5"};
253 ushort setup_value = inb(ioaddr + FJ_STATUS0);
254
255 switch( setup_value & 0x07 ){
256 case 0x01 /* 10base5 */:
257 case 0x02 /* 10base2 */: dev->if_port = 0x18; break;
258 case 0x04 /* 10baseT */: dev->if_port = 0x08; break;
259 default /* auto-sense*/: dev->if_port = 0x00; break;
260 }
261 printk(" %s interface.\n", porttype[(dev->if_port>>3) & 3]);
262 }
263
264 /* Initialize LAN Controller and LAN Card */
265 outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */
266 outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */
267 outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */
268 outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure (TAMIYA) */
269
270 /* wait for a while */
271 udelay(200);
272
273 /* Set the station address in bank zero. */
274 outb(0x00, ioaddr + CONFIG_1);
275 for (i = 0; i < 6; i++)
276 outb(dev->dev_addr[i], ioaddr + 8 + i);
277
278 /* Switch to bank 1 and set the multicast table to accept none. */
279 outb(0x04, ioaddr + CONFIG_1);
280 for (i = 0; i < 8; i++)
281 outb(0x00, ioaddr + 8 + i);
282
283 /* Switch to bank 2 and lock our I/O address. */
284 outb(0x08, ioaddr + CONFIG_1);
285 outb(dev->if_port, ioaddr + MODE13);
286 outb(0x00, ioaddr + COL16CNTL);
287
288 if (net_debug)
289 printk(version);
290
291 /* Initialize the device structure. */
292 dev->priv = kmalloc(sizeof(struct net_local), GFP_KERNEL);
293 if (!dev->priv) {
294 retval = -ENOMEM;
295 goto out_irq;
296 }
297 memset(dev->priv, 0, sizeof(struct net_local));
298 lp = dev->priv;
299 spin_lock_init(&lp->lock);
300
301 dev->open = net_open;
302 dev->stop = net_close;
303 dev->hard_start_xmit = net_send_packet;
304 dev->tx_timeout = net_timeout;
305 dev->watchdog_timeo = HZ/10;
306 dev->get_stats = net_get_stats;
307 dev->set_multicast_list = set_multicast_list;
308 return 0;
309
310out_irq:
311 free_irq(dev->irq, dev);
312out:
313 release_region(ioaddr, FMV18X_IO_EXTENT);
314 return retval;
315}
316
317
318static int net_open(struct net_device *dev)
319{
320 struct net_local *lp = dev->priv;
321 int ioaddr = dev->base_addr;
322
323 /* Set the configuration register 0 to 32K 100ns. byte-wide memory,
324 16 bit bus access, and two 4K Tx, enable the Rx and Tx. */
325 outb(0x5a, ioaddr + CONFIG_0);
326
327 /* Powerup and switch to register bank 2 for the run-time registers. */
328 outb(0xe8, ioaddr + CONFIG_1);
329
330 lp->tx_started = 0;
331 lp->tx_queue_ready = 1;
332 lp->rx_started = 0;
333 lp->tx_queue = 0;
334 lp->tx_queue_len = 0;
335
336 /* Clear Tx and Rx Status */
337 outb(0xff, ioaddr + TX_STATUS);
338 outb(0xff, ioaddr + RX_STATUS);
339 lp->open_time = jiffies;
340
341 netif_start_queue(dev);
342
343 /* Enable the IRQ of the LAN Card */
344 outb(0x80, ioaddr + FJ_CONFIG1);
345
346 /* Enable both Tx and Rx interrupts */
347 outw(0x8182, ioaddr+TX_INTR);
348
349 return 0;
350}
351
352static void net_timeout(struct net_device *dev)
353{
354 struct net_local *lp = dev->priv;
355 int ioaddr = dev->base_addr;
356 unsigned long flags;
357
358
359 printk(KERN_WARNING "%s: transmit timed out with status %04x, %s?\n", dev->name,
360 htons(inw(ioaddr + TX_STATUS)),
361 inb(ioaddr + TX_STATUS) & 0x80
362 ? "IRQ conflict" : "network cable problem");
363 printk(KERN_WARNING "%s: timeout registers: %04x %04x %04x %04x %04x %04x %04x %04x.\n",
364 dev->name, htons(inw(ioaddr + 0)),
365 htons(inw(ioaddr + 2)), htons(inw(ioaddr + 4)),
366 htons(inw(ioaddr + 6)), htons(inw(ioaddr + 8)),
367 htons(inw(ioaddr +10)), htons(inw(ioaddr +12)),
368 htons(inw(ioaddr +14)));
369 printk(KERN_WARNING "eth card: %04x %04x\n",
370 htons(inw(ioaddr+FJ_STATUS0)),
371 htons(inw(ioaddr+FJ_CONFIG0)));
372 lp->stats.tx_errors++;
373 /* ToDo: We should try to restart the adaptor... */
374 spin_lock_irqsave(&lp->lock, flags);
375
376 /* Initialize LAN Controller and LAN Card */
377 outb(0xda, ioaddr + CONFIG_0); /* Initialize LAN Controller */
378 outb(0x00, ioaddr + CONFIG_1); /* Stand by mode */
379 outb(0x00, ioaddr + FJ_CONFIG1); /* Disable IRQ of LAN Card */
380 outb(0x00, ioaddr + FJ_BUFCNTL); /* Reset ? I'm not sure */
381 net_open(dev);
382 spin_unlock_irqrestore(&lp->lock, flags);
383
384 netif_wake_queue(dev);
385}
386
387static int net_send_packet(struct sk_buff *skb, struct net_device *dev)
388{
389 struct net_local *lp = dev->priv;
390 int ioaddr = dev->base_addr;
391 short length = skb->len;
392 unsigned char *buf;
393 unsigned long flags;
394
395 /* Block a transmit from overlapping. */
396
397 if (length > ETH_FRAME_LEN) {
398 if (net_debug)
399 printk("%s: Attempting to send a large packet (%d bytes).\n",
400 dev->name, length);
401 return 1;
402 }
403
404 if (length < ETH_ZLEN) {
405 skb = skb_padto(skb, ETH_ZLEN);
406 if (skb == NULL)
407 return 0;
408 length = ETH_ZLEN;
409 }
410 buf = skb->data;
411
412 if (net_debug > 4)
413 printk("%s: Transmitting a packet of length %lu.\n", dev->name,
414 (unsigned long)skb->len);
415 /* We may not start transmitting unless we finish transferring
416 a packet into the Tx queue. During executing the following
417 codes we possibly catch a Tx interrupt. Thus we flag off
418 tx_queue_ready, so that we prevent the interrupt routine
419 (net_interrupt) to start transmitting. */
420 spin_lock_irqsave(&lp->lock, flags);
421 lp->tx_queue_ready = 0;
422 {
423 outw(length, ioaddr + DATAPORT);
424 outsw(ioaddr + DATAPORT, buf, (length + 1) >> 1);
425 lp->tx_queue++;
426 lp->tx_queue_len += length + 2;
427 }
428 lp->tx_queue_ready = 1;
429 spin_unlock_irqrestore(&lp->lock, flags);
430
431 if (lp->tx_started == 0) {
432 /* If the Tx is idle, always trigger a transmit. */
433 outb(0x80 | lp->tx_queue, ioaddr + TX_START);
434 lp->tx_queue = 0;
435 lp->tx_queue_len = 0;
436 dev->trans_start = jiffies;
437 lp->tx_started = 1;
438 } else if (lp->tx_queue_len >= 4096 - 1502) /* No room for a packet */
439 netif_stop_queue(dev);
440
441 dev_kfree_skb(skb);
442 return 0;
443}
444
445/* The typical workload of the driver:
446 Handle the network interface interrupts. */
447static irqreturn_t
448net_interrupt(int irq, void *dev_id, struct pt_regs *regs)
449{
450 struct net_device *dev = dev_id;
451 struct net_local *lp;
452 int ioaddr, status;
453
454 ioaddr = dev->base_addr;
455 lp = dev->priv;
456 status = inw(ioaddr + TX_STATUS);
457 outw(status, ioaddr + TX_STATUS);
458
459 if (net_debug > 4)
460 printk("%s: Interrupt with status %04x.\n", dev->name, status);
461 if (lp->rx_started == 0 &&
462 (status & 0xff00 || (inb(ioaddr + RX_MODE) & 0x40) == 0)) {
463 /* Got a packet(s).
464 We cannot execute net_rx more than once at the same time for
465 the same device. During executing net_rx, we possibly catch a
466 Tx interrupt. Thus we flag on rx_started, so that we prevent
467 the interrupt routine (net_interrupt) to dive into net_rx
468 again. */
469 lp->rx_started = 1;
470 outb(0x00, ioaddr + RX_INTR); /* Disable RX intr. */
471 net_rx(dev);
472 outb(0x81, ioaddr + RX_INTR); /* Enable RX intr. */
473 lp->rx_started = 0;
474 }
475 if (status & 0x00ff) {
476 if (status & 0x02) {
477 /* More than 16 collisions occurred */
478 if (net_debug > 4)
479 printk("%s: 16 Collision occur during Txing.\n", dev->name);
480 /* Cancel sending a packet. */
481 outb(0x03, ioaddr + COL16CNTL);
482 lp->stats.collisions++;
483 }
484 if (status & 0x82) {
485 spin_lock(&lp->lock);
486 lp->stats.tx_packets++;
487 if (lp->tx_queue && lp->tx_queue_ready) {
488 outb(0x80 | lp->tx_queue, ioaddr + TX_START);
489 lp->tx_queue = 0;
490 lp->tx_queue_len = 0;
491 dev->trans_start = jiffies;
492 netif_wake_queue(dev); /* Inform upper layers. */
493 } else {
494 lp->tx_started = 0;
495 netif_wake_queue(dev); /* Inform upper layers. */
496 }
497 spin_unlock(&lp->lock);
498 }
499 }
500 return IRQ_RETVAL(status);
501}
502
503/* We have a good packet(s), get it/them out of the buffers. */
504static void net_rx(struct net_device *dev)
505{
506 struct net_local *lp = dev->priv;
507 int ioaddr = dev->base_addr;
508 int boguscount = 5;
509
510 while ((inb(ioaddr + RX_MODE) & 0x40) == 0) {
511 /* Clear PKT_RDY bit: by agy 19940922 */
512 /* outb(0x80, ioaddr + RX_STATUS); */
513 ushort status = inw(ioaddr + DATAPORT);
514
515 if (net_debug > 4)
516 printk("%s: Rxing packet mode %02x status %04x.\n",
517 dev->name, inb(ioaddr + RX_MODE), status);
518#ifndef final_version
519 if (status == 0) {
520 outb(0x05, ioaddr + 14);
521 break;
522 }
523#endif
524
525 if ((status & 0xF0) != 0x20) { /* There was an error. */
526 lp->stats.rx_errors++;
527 if (status & 0x08) lp->stats.rx_length_errors++;
528 if (status & 0x04) lp->stats.rx_frame_errors++;
529 if (status & 0x02) lp->stats.rx_crc_errors++;
530 if (status & 0x01) lp->stats.rx_over_errors++;
531 } else {
532 ushort pkt_len = inw(ioaddr + DATAPORT);
533 /* Malloc up new buffer. */
534 struct sk_buff *skb;
535
536 if (pkt_len > 1550) {
537 printk("%s: The FMV-18x claimed a very large packet, size %d.\n",
538 dev->name, pkt_len);
539 outb(0x05, ioaddr + 14);
540 lp->stats.rx_errors++;
541 break;
542 }
543 skb = dev_alloc_skb(pkt_len+3);
544 if (skb == NULL) {
545 printk("%s: Memory squeeze, dropping packet (len %d).\n",
546 dev->name, pkt_len);
547 outb(0x05, ioaddr + 14);
548 lp->stats.rx_dropped++;
549 break;
550 }
551 skb->dev = dev;
552 skb_reserve(skb,2);
553
554 insw(ioaddr + DATAPORT, skb_put(skb,pkt_len), (pkt_len + 1) >> 1);
555
556 if (net_debug > 5) {
557 int i;
558 printk("%s: Rxed packet of length %d: ", dev->name, pkt_len);
559 for (i = 0; i < 14; i++)
560 printk(" %02x", skb->data[i]);
561 printk(".\n");
562 }
563
564 skb->protocol=eth_type_trans(skb, dev);
565 netif_rx(skb);
566 dev->last_rx = jiffies;
567 lp->stats.rx_packets++;
568 lp->stats.rx_bytes += pkt_len;
569 }
570 if (--boguscount <= 0)
571 break;
572 }
573
574 /* If any worth-while packets have been received, dev_rint()
575 has done a mark_bh(NET_BH) for us and will work on them
576 when we get to the bottom-half routine. */
577 {
578 int i;
579 for (i = 0; i < 20; i++) {
580 if ((inb(ioaddr + RX_MODE) & 0x40) == 0x40)
581 break;
582 (void)inw(ioaddr + DATAPORT); /* dummy status read */
583 outb(0x05, ioaddr + 14);
584 }
585
586 if (net_debug > 5 && i > 0)
587 printk("%s: Exint Rx packet with mode %02x after %d ticks.\n",
588 dev->name, inb(ioaddr + RX_MODE), i);
589 }
590
591 return;
592}
593
594/* The inverse routine to net_open(). */
595static int net_close(struct net_device *dev)
596{
597 int ioaddr = dev->base_addr;
598
599 ((struct net_local *)dev->priv)->open_time = 0;
600
601 netif_stop_queue(dev);
602
603 /* Set configuration register 0 to disable Tx and Rx. */
604 outb(0xda, ioaddr + CONFIG_0);
605
606 /* Update the statistics -- ToDo. */
607
608 /* Power-down the chip. Green, green, green! */
609 outb(0x00, ioaddr + CONFIG_1);
610
611 /* Set the ethernet adaptor disable IRQ */
612 outb(0x00, ioaddr + FJ_CONFIG1);
613
614 return 0;
615}
616
617/* Get the current statistics. This may be called with the card open or
618 closed. */
619static struct net_device_stats *net_get_stats(struct net_device *dev)
620{
621 struct net_local *lp = dev->priv;
622 return &lp->stats;
623}
624
625/* Set or clear the multicast filter for this adaptor.
626 num_addrs == -1 Promiscuous mode, receive all packets
627 num_addrs == 0 Normal mode, clear multicast list
628 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
629 best-effort filtering.
630 */
631
632static void set_multicast_list(struct net_device *dev)
633{
634 short ioaddr = dev->base_addr;
635 if (dev->mc_count || dev->flags&(IFF_PROMISC|IFF_ALLMULTI))
636 {
637 /*
638 * We must make the kernel realise we had to move
639 * into promisc mode or we start all out war on
640 * the cable. - AC
641 */
642 dev->flags|=IFF_PROMISC;
643
644 outb(3, ioaddr + RX_MODE); /* Enable promiscuous mode */
645 }
646 else
647 outb(2, ioaddr + RX_MODE); /* Disable promiscuous, use normal mode */
648}
649
650#ifdef MODULE
651static struct net_device *dev_fmv18x;
652
653MODULE_PARM(io, "i");
654MODULE_PARM(irq, "i");
655MODULE_PARM(net_debug, "i");
656MODULE_PARM_DESC(io, "FMV-18X I/O address");
657MODULE_PARM_DESC(irq, "FMV-18X IRQ number");
658MODULE_PARM_DESC(net_debug, "FMV-18X debug level (0-1,5-6)");
659MODULE_LICENSE("GPL");
660
661int init_module(void)
662{
663 if (io == 0)
664 printk("fmv18x: You should not use auto-probing with insmod!\n");
665 dev_fmv18x = fmv18x_probe(-1);
666 if (IS_ERR(dev_fmv18x))
667 return PTR_ERR(dev_fmv18x);
668 return 0;
669}
670
671void
672cleanup_module(void)
673{
674 unregister_netdev(dev_fmv18x);
675 free_irq(dev_fmv18x->irq, dev_fmv18x);
676 release_region(dev_fmv18x->base_addr, FMV18X_IO_EXTENT);
677 free_netdev(dev_fmv18x);
678}
679#endif /* MODULE */
680
681/*
682 * Local variables:
683 * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c fmv18x.c"
684 * version-control: t
685 * kept-new-versions: 5
686 * tab-width: 4
687 * c-indent-level: 4
688 * End:
689 */
diff --git a/drivers/net/sk_g16.c b/drivers/net/sk_g16.c
deleted file mode 100644
index 134ae0e6495b..000000000000
--- a/drivers/net/sk_g16.c
+++ /dev/null
@@ -1,2066 +0,0 @@
1/*-
2 * Copyright (C) 1994 by PJD Weichmann & SWS Bern, Switzerland
3 *
4 * This software may be used and distributed according to the terms
5 * of the GNU General Public License, incorporated herein by reference.
6 *
7 * Module : sk_g16.c
8 *
9 * Version : $Revision: 1.1 $
10 *
11 * Author : Patrick J.D. Weichmann
12 *
13 * Date Created : 94/05/26
14 * Last Updated : $Date: 1994/06/30 16:25:15 $
15 *
16 * Description : Schneider & Koch G16 Ethernet Device Driver for
17 * Linux Kernel >= 1.1.22
18 * Update History :
19 * Paul Gortmaker, 03/97: Fix for v2.1.x to use read{b,w}
20 * write{b,w} and memcpy -> memcpy_{to,from}io
21 *
22 * Jeff Garzik, 06/2000, Modularize
23 *
24-*/
25
26static const char rcsid[] = "$Id: sk_g16.c,v 1.1 1994/06/30 16:25:15 root Exp $";
27
28/*
29 * The Schneider & Koch (SK) G16 Network device driver is based
30 * on the 'ni6510' driver from Michael Hipp which can be found at
31 * ftp://sunsite.unc.edu/pub/Linux/system/Network/drivers/nidrivers.tar.gz
32 *
33 * Sources: 1) ni6510.c by M. Hipp
34 * 2) depca.c by D.C. Davies
35 * 3) skeleton.c by D. Becker
36 * 4) Am7990 Local Area Network Controller for Ethernet (LANCE),
37 * AMD, Pub. #05698, June 1989
38 *
39 * Many Thanks for helping me to get things working to:
40 *
41 * A. Cox (A.Cox@swansea.ac.uk)
42 * M. Hipp (mhipp@student.uni-tuebingen.de)
43 * R. Bolz (Schneider & Koch, Germany)
44 *
45 * To Do:
46 * - Support of SK_G8 and other SK Network Cards.
47 * - Autoset memory mapped RAM. Check for free memory and then
48 * configure RAM correctly.
49 * - SK_close should really set card in to initial state.
50 * - Test if IRQ 3 is not switched off. Use autoirq() functionality.
51 * (as in /drivers/net/skeleton.c)
52 * - Implement Multicast addressing. At minimum something like
53 * in depca.c.
54 * - Redo the statistics part.
55 * - Try to find out if the board is in 8 Bit or 16 Bit slot.
56 * If in 8 Bit mode don't use IRQ 11.
57 * - (Try to make it slightly faster.)
58 * - Power management support
59 */
60
61#include <linux/module.h>
62#include <linux/kernel.h>
63#include <linux/fcntl.h>
64#include <linux/ioport.h>
65#include <linux/interrupt.h>
66#include <linux/slab.h>
67#include <linux/string.h>
68#include <linux/delay.h>
69#include <linux/errno.h>
70#include <linux/init.h>
71#include <linux/spinlock.h>
72#include <linux/netdevice.h>
73#include <linux/etherdevice.h>
74#include <linux/skbuff.h>
75#include <linux/bitops.h>
76
77#include <asm/system.h>
78#include <asm/io.h>
79
80#include "sk_g16.h"
81
82/*
83 * Schneider & Koch Card Definitions
84 * =================================
85 */
86
87#define SK_NAME "SK_G16"
88
89/*
90 * SK_G16 Configuration
91 * --------------------
92 */
93
94/*
95 * Abbreviations
96 * -------------
97 *
98 * RAM - used for the 16KB shared memory
99 * Boot_ROM, ROM - are used for referencing the BootEPROM
100 *
101 * SK_BOOT_ROM and SK_ADDR are symbolic constants used to configure
102 * the behaviour of the driver and the SK_G16.
103 *
104 * ! See sk_g16.install on how to install and configure the driver !
105 *
106 * SK_BOOT_ROM defines if the Boot_ROM should be switched off or not.
107 *
108 * SK_ADDR defines the address where the RAM will be mapped into the real
109 * host memory.
110 * valid addresses are from 0xa0000 to 0xfc000 in 16Kbyte steps.
111 */
112
113#define SK_BOOT_ROM 1 /* 1=BootROM on 0=off */
114
115#define SK_ADDR 0xcc000
116
117/*
118 * In POS3 are bits A14-A19 of the address bus. These bits can be set
119 * to choose the RAM address. That's why we only can choose the RAM address
120 * in 16KB steps.
121 */
122
123#define POS_ADDR (rom_addr>>14) /* Do not change this line */
124
125/*
126 * SK_G16 I/O PORT's + IRQ's + Boot_ROM locations
127 * ----------------------------------------------
128 */
129
130/*
131 * As nearly every card has also SK_G16 a specified I/O Port region and
132 * only a few possible IRQ's.
133 * In the Installation Guide from Schneider & Koch is listed a possible
134 * Interrupt IRQ2. IRQ2 is always IRQ9 in boards with two cascaded interrupt
135 * controllers. So we use in SK_IRQS IRQ9.
136 */
137
138/* Don't touch any of the following #defines. */
139
140#define SK_IO_PORTS { 0x100, 0x180, 0x208, 0x220, 0x288, 0x320, 0x328, 0x390, 0 }
141
142#define SK_IRQS { 3, 5, 9, 11, 0 }
143
144#define SK_BOOT_ROM_LOCATIONS { 0xc0000, 0xc4000, 0xc8000, 0xcc000, 0xd0000, 0xd4000, 0xd8000, 0xdc000, 0 }
145
146#define SK_BOOT_ROM_ID { 0x55, 0xaa, 0x10, 0x50, 0x06, 0x33 }
147
148/*
149 * SK_G16 POS REGISTERS
150 * --------------------
151 */
152
153/*
154 * SK_G16 has a Programmable Option Select (POS) Register.
155 * The POS is composed of 8 separate registers (POS0-7) which
156 * are I/O mapped on an address set by the W1 switch.
157 *
158 */
159
160#define SK_POS_SIZE 8 /* 8 I/O Ports are used by SK_G16 */
161
162#define SK_POS0 ioaddr /* Card-ID Low (R) */
163#define SK_POS1 ioaddr+1 /* Card-ID High (R) */
164#define SK_POS2 ioaddr+2 /* Card-Enable, Boot-ROM Disable (RW) */
165#define SK_POS3 ioaddr+3 /* Base address of RAM */
166#define SK_POS4 ioaddr+4 /* IRQ */
167
168/* POS5 - POS7 are unused */
169
170/*
171 * SK_G16 MAC PREFIX
172 * -----------------
173 */
174
175/*
176 * Scheider & Koch manufacturer code (00:00:a5).
177 * This must be checked, that we are sure it is a SK card.
178 */
179
180#define SK_MAC0 0x00
181#define SK_MAC1 0x00
182#define SK_MAC2 0x5a
183
184/*
185 * SK_G16 ID
186 * ---------
187 */
188
189/*
190 * If POS0,POS1 contain the following ID, then we know
191 * at which I/O Port Address we are.
192 */
193
194#define SK_IDLOW 0xfd
195#define SK_IDHIGH 0x6a
196
197
198/*
199 * LANCE POS Bit definitions
200 * -------------------------
201 */
202
203#define SK_ROM_RAM_ON (POS2_CARD)
204#define SK_ROM_RAM_OFF (POS2_EPROM)
205#define SK_ROM_ON (inb(SK_POS2) & POS2_CARD)
206#define SK_ROM_OFF (inb(SK_POS2) | POS2_EPROM)
207#define SK_RAM_ON (inb(SK_POS2) | POS2_CARD)
208#define SK_RAM_OFF (inb(SK_POS2) & POS2_EPROM)
209
210#define POS2_CARD 0x0001 /* 1 = SK_G16 on 0 = off */
211#define POS2_EPROM 0x0002 /* 1 = Boot EPROM off 0 = on */
212
213/*
214 * SK_G16 Memory mapped Registers
215 * ------------------------------
216 *
217 */
218
219#define SK_IOREG (&board->ioreg) /* LANCE data registers. */
220#define SK_PORT (&board->port) /* Control, Status register */
221#define SK_IOCOM (&board->iocom) /* I/O Command */
222
223/*
224 * SK_G16 Status/Control Register bits
225 * -----------------------------------
226 *
227 * (C) Controlreg (S) Statusreg
228 */
229
230/*
231 * Register transfer: 0 = no transfer
232 * 1 = transferring data between LANCE and I/O reg
233 */
234#define SK_IORUN 0x20
235
236/*
237 * LANCE interrupt: 0 = LANCE interrupt occurred
238 * 1 = no LANCE interrupt occurred
239 */
240#define SK_IRQ 0x10
241
242#define SK_RESET 0x08 /* Reset SK_CARD: 0 = RESET 1 = normal */
243#define SK_RW 0x02 /* 0 = write to 1 = read from */
244#define SK_ADR 0x01 /* 0 = REG DataPort 1 = RAP Reg addr port */
245
246
247#define SK_RREG SK_RW /* Transferdirection to read from lance */
248#define SK_WREG 0 /* Transferdirection to write to lance */
249#define SK_RAP SK_ADR /* Destination Register RAP */
250#define SK_RDATA 0 /* Destination Register REG DataPort */
251
252/*
253 * SK_G16 I/O Command
254 * ------------------
255 */
256
257/*
258 * Any bitcombination sets the internal I/O bit (transfer will start)
259 * when written to I/O Command
260 */
261
262#define SK_DOIO 0x80 /* Do Transfer */
263
264/*
265 * LANCE RAP (Register Address Port).
266 * ---------------------------------
267 */
268
269/*
270 * The LANCE internal registers are selected through the RAP.
271 * The Registers are:
272 *
273 * CSR0 - Status and Control flags
274 * CSR1 - Low order bits of initialize block (bits 15:00)
275 * CSR2 - High order bits of initialize block (bits 07:00, 15:08 are reserved)
276 * CSR3 - Allows redefinition of the Bus Master Interface.
277 * This register must be set to 0x0002, which means BSWAP = 0,
278 * ACON = 1, BCON = 0;
279 *
280 */
281
282#define CSR0 0x00
283#define CSR1 0x01
284#define CSR2 0x02
285#define CSR3 0x03
286
287/*
288 * General Definitions
289 * ===================
290 */
291
292/*
293 * Set the number of Tx and Rx buffers, using Log_2(# buffers).
294 * We have 16KB RAM which can be accessed by the LANCE. In the
295 * memory are not only the buffers but also the ring descriptors and
296 * the initialize block.
297 * Don't change anything unless you really know what you do.
298 */
299
300#define LC_LOG_TX_BUFFERS 1 /* (2 == 2^^1) 2 Transmit buffers */
301#define LC_LOG_RX_BUFFERS 3 /* (8 == 2^^3) 8 Receive buffers */
302
303/* Descriptor ring sizes */
304
305#define TMDNUM (1 << (LC_LOG_TX_BUFFERS)) /* 2 Transmit descriptor rings */
306#define RMDNUM (1 << (LC_LOG_RX_BUFFERS)) /* 8 Receive Buffers */
307
308/* Define Mask for setting RMD, TMD length in the LANCE init_block */
309
310#define TMDNUMMASK (LC_LOG_TX_BUFFERS << 29)
311#define RMDNUMMASK (LC_LOG_RX_BUFFERS << 29)
312
313/*
314 * Data Buffer size is set to maximum packet length.
315 */
316
317#define PKT_BUF_SZ 1518
318
319/*
320 * The number of low I/O ports used by the ethercard.
321 */
322
323#define ETHERCARD_TOTAL_SIZE SK_POS_SIZE
324
325/*
326 * SK_DEBUG
327 *
328 * Here you can choose what level of debugging wanted.
329 *
330 * If SK_DEBUG and SK_DEBUG2 are undefined, then only the
331 * necessary messages will be printed.
332 *
333 * If SK_DEBUG is defined, there will be many debugging prints
334 * which can help to find some mistakes in configuration or even
335 * in the driver code.
336 *
337 * If SK_DEBUG2 is defined, many many messages will be printed
338 * which normally you don't need. I used this to check the interrupt
339 * routine.
340 *
341 * (If you define only SK_DEBUG2 then only the messages for
342 * checking interrupts will be printed!)
343 *
344 * Normal way of live is:
345 *
346 * For the whole thing get going let both symbolic constants
347 * undefined. If you face any problems and you know what's going
348 * on (you know something about the card and you can interpret some
349 * hex LANCE register output) then define SK_DEBUG
350 *
351 */
352
353#undef SK_DEBUG /* debugging */
354#undef SK_DEBUG2 /* debugging with more verbose report */
355
356#ifdef SK_DEBUG
357#define PRINTK(x) printk x
358#else
359#define PRINTK(x) /**/
360#endif
361
362#ifdef SK_DEBUG2
363#define PRINTK2(x) printk x
364#else
365#define PRINTK2(x) /**/
366#endif
367
368/*
369 * SK_G16 RAM
370 *
371 * The components are memory mapped and can be set in a region from
372 * 0x00000 through 0xfc000 in 16KB steps.
373 *
374 * The Network components are: dual ported RAM, Prom, I/O Reg, Status-,
375 * Controlregister and I/O Command.
376 *
377 * dual ported RAM: This is the only memory region which the LANCE chip
378 * has access to. From the Lance it is addressed from 0x0000 to
379 * 0x3fbf. The host accesses it normally.
380 *
381 * PROM: The PROM obtains the ETHERNET-MAC-Address. It is realised as a
382 * 8-Bit PROM, this means only the 16 even addresses are used of the
383 * 32 Byte Address region. Access to an odd address results in invalid
384 * data.
385 *
386 * LANCE I/O Reg: The I/O Reg is build of 4 single Registers, Low-Byte Write,
387 * Hi-Byte Write, Low-Byte Read, Hi-Byte Read.
388 * Transfer from or to the LANCE is always in 16Bit so Low and High
389 * registers are always relevant.
390 *
391 * The Data from the Readregister is not the data in the Writeregister!!
392 *
393 * Port: Status- and Controlregister.
394 * Two different registers which share the same address, Status is
395 * read-only, Control is write-only.
396 *
397 * I/O Command:
398 * Any bitcombination written in here starts the transmission between
399 * Host and LANCE.
400 */
401
402typedef struct
403{
404 unsigned char ram[0x3fc0]; /* 16KB dual ported ram */
405 unsigned char rom[0x0020]; /* 32Byte PROM containing 6Byte MAC */
406 unsigned char res1[0x0010]; /* reserved */
407 unsigned volatile short ioreg;/* LANCE I/O Register */
408 unsigned volatile char port; /* Statusregister and Controlregister */
409 unsigned char iocom; /* I/O Command Register */
410} SK_RAM;
411
412/* struct */
413
414/*
415 * This is the structure for the dual ported ram. We
416 * have exactly 16 320 Bytes. In here there must be:
417 *
418 * - Initialize Block (starting at a word boundary)
419 * - Receive and Transmit Descriptor Rings (quadword boundary)
420 * - Data Buffers (arbitrary boundary)
421 *
422 * This is because LANCE has on SK_G16 only access to the dual ported
423 * RAM and nowhere else.
424 */
425
426struct SK_ram
427{
428 struct init_block ib;
429 struct tmd tmde[TMDNUM];
430 struct rmd rmde[RMDNUM];
431 char tmdbuf[TMDNUM][PKT_BUF_SZ];
432 char rmdbuf[RMDNUM][PKT_BUF_SZ];
433};
434
435/*
436 * Structure where all necessary information is for ring buffer
437 * management and statistics.
438 */
439
440struct priv
441{
442 struct SK_ram *ram; /* dual ported ram structure */
443 struct rmd *rmdhead; /* start of receive ring descriptors */
444 struct tmd *tmdhead; /* start of transmit ring descriptors */
445 int rmdnum; /* actual used ring descriptor */
446 int tmdnum; /* actual transmit descriptor for transmitting data */
447 int tmdlast; /* last sent descriptor used for error handling, etc */
448 void *rmdbufs[RMDNUM]; /* pointer to the receive buffers */
449 void *tmdbufs[TMDNUM]; /* pointer to the transmit buffers */
450 struct net_device_stats stats; /* Device driver statistics */
451};
452
453/* global variable declaration */
454
455/* IRQ map used to reserve a IRQ (see SK_open()) */
456
457/* static variables */
458
459static SK_RAM *board; /* pointer to our memory mapped board components */
460static DEFINE_SPINLOCK(SK_lock);
461
462/* Macros */
463
464
465/* Function Prototypes */
466
467/*
468 * Device Driver functions
469 * -----------------------
470 * See for short explanation of each function its definitions header.
471 */
472
473static int SK_probe(struct net_device *dev, short ioaddr);
474
475static void SK_timeout(struct net_device *dev);
476static int SK_open(struct net_device *dev);
477static int SK_send_packet(struct sk_buff *skb, struct net_device *dev);
478static irqreturn_t SK_interrupt(int irq, void *dev_id, struct pt_regs * regs);
479static void SK_rxintr(struct net_device *dev);
480static void SK_txintr(struct net_device *dev);
481static int SK_close(struct net_device *dev);
482
483static struct net_device_stats *SK_get_stats(struct net_device *dev);
484
485unsigned int SK_rom_addr(void);
486
487static void set_multicast_list(struct net_device *dev);
488
489/*
490 * LANCE Functions
491 * ---------------
492 */
493
494static int SK_lance_init(struct net_device *dev, unsigned short mode);
495void SK_reset_board(void);
496void SK_set_RAP(int reg_number);
497int SK_read_reg(int reg_number);
498int SK_rread_reg(void);
499void SK_write_reg(int reg_number, int value);
500
501/*
502 * Debugging functions
503 * -------------------
504 */
505
506void SK_print_pos(struct net_device *dev, char *text);
507void SK_print_dev(struct net_device *dev, char *text);
508void SK_print_ram(struct net_device *dev);
509
510
511/*-
512 * Function : SK_init
513 * Author : Patrick J.D. Weichmann
514 * Date Created : 94/05/26
515 *
516 * Description : Check for a SK_G16 network adaptor and initialize it.
517 * This function gets called by dev_init which initializes
518 * all Network devices.
519 *
520 * Parameters : I : struct net_device *dev - structure preconfigured
521 * from Space.c
522 * Return Value : 0 = Driver Found and initialized
523 * Errors : ENODEV - no device found
524 * ENXIO - not probed
525 * Globals : None
526 * Update History :
527 * YY/MM/DD uid Description
528-*/
529
530static int io; /* 0 == probe */
531
532/*
533 * Check for a network adaptor of this type, and return '0' if one exists.
534 * If dev->base_addr == 0, probe all likely locations.
535 * If dev->base_addr == 1, always return failure.
536 */
537
538struct net_device * __init SK_init(int unit)
539{
540 int *port, ports[] = SK_IO_PORTS; /* SK_G16 supported ports */
541 static unsigned version_printed;
542 struct net_device *dev = alloc_etherdev(sizeof(struct priv));
543 int err = -ENODEV;
544
545 if (!dev)
546 return ERR_PTR(-ENOMEM);
547
548 if (unit >= 0) {
549 sprintf(dev->name, "eth%d", unit);
550 netdev_boot_setup_check(dev);
551 io = dev->base_addr;
552 }
553
554 if (version_printed++ == 0)
555 PRINTK(("%s: %s", SK_NAME, rcsid));
556
557 if (io > 0xff) { /* Check a single specified address */
558 err = -EBUSY;
559 /* Check if on specified address is a SK_G16 */
560 if (request_region(io, ETHERCARD_TOTAL_SIZE, "sk_g16")) {
561 err = SK_probe(dev, io);
562 if (!err)
563 goto got_it;
564 release_region(io, ETHERCARD_TOTAL_SIZE);
565 }
566 } else if (io > 0) { /* Don't probe at all */
567 err = -ENXIO;
568 } else {
569 /* Autoprobe base_addr */
570 for (port = &ports[0]; *port; port++) {
571 io = *port;
572
573 /* Check if I/O Port region is used by another board */
574 if (!request_region(io, ETHERCARD_TOTAL_SIZE, "sk_g16"))
575 continue; /* Try next Port address */
576
577 /* Check if at ioaddr is a SK_G16 */
578 if (SK_probe(dev, io) == 0)
579 goto got_it;
580
581 release_region(io, ETHERCARD_TOTAL_SIZE);
582 }
583 }
584err_out:
585 free_netdev(dev);
586 return ERR_PTR(err);
587
588got_it:
589 err = register_netdev(dev);
590 if (err) {
591 release_region(dev->base_addr, ETHERCARD_TOTAL_SIZE);
592 goto err_out;
593 }
594 return dev;
595
596} /* End of SK_init */
597
598
599MODULE_AUTHOR("Patrick J.D. Weichmann");
600MODULE_DESCRIPTION("Schneider & Koch G16 Ethernet Device Driver");
601MODULE_LICENSE("GPL");
602MODULE_PARM(io, "i");
603MODULE_PARM_DESC(io, "0 to probe common ports (unsafe), or the I/O base of the board");
604
605
606#ifdef MODULE
607
608static struct net_device *SK_dev;
609
610static int __init SK_init_module (void)
611{
612 SK_dev = SK_init(-1);
613 return IS_ERR(SK_dev) ? PTR_ERR(SK_dev) : 0;
614}
615
616static void __exit SK_cleanup_module (void)
617{
618 unregister_netdev(SK_dev);
619 release_region(SK_dev->base_addr, ETHERCARD_TOTAL_SIZE);
620 free_netdev(SK_dev);
621}
622
623module_init(SK_init_module);
624module_exit(SK_cleanup_module);
625#endif
626
627
628/*-
629 * Function : SK_probe
630 * Author : Patrick J.D. Weichmann
631 * Date Created : 94/05/26
632 *
633 * Description : This function is called by SK_init and
634 * does the main part of initialization.
635 *
636 * Parameters : I : struct net_device *dev - SK_G16 device structure
637 * I : short ioaddr - I/O Port address where POS is.
638 * Return Value : 0 = Initialization done
639 * Errors : ENODEV - No SK_G16 found
640 * -1 - Configuration problem
641 * Globals : board - pointer to SK_RAM
642 * Update History :
643 * YY/MM/DD uid Description
644 * 94/06/30 pwe SK_ADDR now checked and at the correct place
645-*/
646
647int __init SK_probe(struct net_device *dev, short ioaddr)
648{
649 int i,j; /* Counters */
650 int sk_addr_flag = 0; /* SK ADDR correct? 1 - no, 0 - yes */
651 unsigned int rom_addr; /* used to store RAM address used for POS_ADDR */
652
653 struct priv *p = netdev_priv(dev); /* SK_G16 private structure */
654
655 if (inb(SK_POS0) != SK_IDLOW || inb(SK_POS1) != SK_IDHIGH)
656 return -ENODEV;
657 dev->base_addr = ioaddr;
658
659 if (SK_ADDR & 0x3fff || SK_ADDR < 0xa0000)
660 {
661
662 sk_addr_flag = 1;
663
664 /*
665 * Now here we could use a routine which searches for a free
666 * place in the ram and set SK_ADDR if found. TODO.
667 */
668 }
669
670 if (SK_BOOT_ROM) /* Shall we keep Boot_ROM on ? */
671 {
672 PRINTK(("## %s: SK_BOOT_ROM is set.\n", SK_NAME));
673
674 rom_addr = SK_rom_addr();
675
676 if (rom_addr == 0) /* No Boot_ROM found */
677 {
678 if (sk_addr_flag) /* No or Invalid SK_ADDR is defined */
679 {
680 printk("%s: SK_ADDR %#08x is not valid. Check configuration.\n",
681 dev->name, SK_ADDR);
682 return -1;
683 }
684
685 rom_addr = SK_ADDR; /* assign predefined address */
686
687 PRINTK(("## %s: NO Bootrom found \n", SK_NAME));
688
689 outb(SK_ROM_RAM_OFF, SK_POS2); /* Boot_ROM + RAM off */
690 outb(POS_ADDR, SK_POS3); /* Set RAM address */
691 outb(SK_RAM_ON, SK_POS2); /* enable RAM */
692 }
693 else if (rom_addr == SK_ADDR)
694 {
695 printk("%s: RAM + ROM are set to the same address %#08x\n"
696 " Check configuration. Now switching off Boot_ROM\n",
697 SK_NAME, rom_addr);
698
699 outb(SK_ROM_RAM_OFF, SK_POS2); /* Boot_ROM + RAM off*/
700 outb(POS_ADDR, SK_POS3); /* Set RAM address */
701 outb(SK_RAM_ON, SK_POS2); /* enable RAM */
702 }
703 else
704 {
705 PRINTK(("## %s: Found ROM at %#08x\n", SK_NAME, rom_addr));
706 PRINTK(("## %s: Keeping Boot_ROM on\n", SK_NAME));
707
708 if (sk_addr_flag) /* No or Invalid SK_ADDR is defined */
709 {
710 printk("%s: SK_ADDR %#08x is not valid. Check configuration.\n",
711 dev->name, SK_ADDR);
712 return -1;
713 }
714
715 rom_addr = SK_ADDR;
716
717 outb(SK_ROM_RAM_OFF, SK_POS2); /* Boot_ROM + RAM off */
718 outb(POS_ADDR, SK_POS3); /* Set RAM address */
719 outb(SK_ROM_RAM_ON, SK_POS2); /* RAM on, BOOT_ROM on */
720 }
721 }
722 else /* Don't keep Boot_ROM */
723 {
724 PRINTK(("## %s: SK_BOOT_ROM is not set.\n", SK_NAME));
725
726 if (sk_addr_flag) /* No or Invalid SK_ADDR is defined */
727 {
728 printk("%s: SK_ADDR %#08x is not valid. Check configuration.\n",
729 dev->name, SK_ADDR);
730 return -1;
731 }
732
733 rom_addr = SK_rom_addr(); /* Try to find a Boot_ROM */
734
735 /* IF we find a Boot_ROM disable it */
736
737 outb(SK_ROM_RAM_OFF, SK_POS2); /* Boot_ROM + RAM off */
738
739 /* We found a Boot_ROM and it's gone. Set RAM address on
740 * Boot_ROM address.
741 */
742
743 if (rom_addr)
744 {
745 printk("%s: We found Boot_ROM at %#08x. Now setting RAM on"
746 "that address\n", SK_NAME, rom_addr);
747
748 outb(POS_ADDR, SK_POS3); /* Set RAM on Boot_ROM address */
749 }
750 else /* We did not find a Boot_ROM, use predefined SK_ADDR for ram */
751 {
752 if (sk_addr_flag) /* No or Invalid SK_ADDR is defined */
753 {
754 printk("%s: SK_ADDR %#08x is not valid. Check configuration.\n",
755 dev->name, SK_ADDR);
756 return -1;
757 }
758
759 rom_addr = SK_ADDR;
760
761 outb(POS_ADDR, SK_POS3); /* Set RAM address */
762 }
763 outb(SK_RAM_ON, SK_POS2); /* enable RAM */
764 }
765
766#ifdef SK_DEBUG
767 SK_print_pos(dev, "POS registers after ROM, RAM config");
768#endif
769
770 board = (SK_RAM *) isa_bus_to_virt(rom_addr);
771
772 /* Read in station address */
773 for (i = 0, j = 0; i < ETH_ALEN; i++, j+=2)
774 {
775 dev->dev_addr[i] = readb(board->rom+j);
776 }
777
778 /* Check for manufacturer code */
779 if (!(dev->dev_addr[0] == SK_MAC0 &&
780 dev->dev_addr[1] == SK_MAC1 &&
781 dev->dev_addr[2] == SK_MAC2) )
782 {
783 PRINTK(("## %s: We did not find SK_G16 at RAM location.\n",
784 SK_NAME));
785 return -ENODEV; /* NO SK_G16 found */
786 }
787
788 printk("%s: %s found at %#3x, HW addr: %#04x:%02x:%02x:%02x:%02x:%02x\n",
789 dev->name,
790 "Schneider & Koch Netcard",
791 (unsigned int) dev->base_addr,
792 dev->dev_addr[0],
793 dev->dev_addr[1],
794 dev->dev_addr[2],
795 dev->dev_addr[3],
796 dev->dev_addr[4],
797 dev->dev_addr[5]);
798
799 memset((char *) dev->priv, 0, sizeof(struct priv)); /* clear memory */
800
801 /* Assign our Device Driver functions */
802
803 dev->open = SK_open;
804 dev->stop = SK_close;
805 dev->hard_start_xmit = SK_send_packet;
806 dev->get_stats = SK_get_stats;
807 dev->set_multicast_list = set_multicast_list;
808 dev->tx_timeout = SK_timeout;
809 dev->watchdog_timeo = HZ/7;
810
811
812 dev->flags &= ~IFF_MULTICAST;
813
814 /* Initialize private structure */
815
816 p->ram = (struct SK_ram *) rom_addr; /* Set dual ported RAM addr */
817 p->tmdhead = &(p->ram)->tmde[0]; /* Set TMD head */
818 p->rmdhead = &(p->ram)->rmde[0]; /* Set RMD head */
819
820 /* Initialize buffer pointers */
821
822 for (i = 0; i < TMDNUM; i++)
823 {
824 p->tmdbufs[i] = &(p->ram)->tmdbuf[i];
825 }
826
827 for (i = 0; i < RMDNUM; i++)
828 {
829 p->rmdbufs[i] = &(p->ram)->rmdbuf[i];
830 }
831
832#ifdef SK_DEBUG
833 SK_print_pos(dev, "End of SK_probe");
834 SK_print_ram(dev);
835#endif
836 return 0; /* Initialization done */
837} /* End of SK_probe() */
838
839
840/*-
841 * Function : SK_open
842 * Author : Patrick J.D. Weichmann
843 * Date Created : 94/05/26
844 *
845 * Description : This function is called sometimes after booting
846 * when ifconfig program is run.
847 *
848 * This function requests an IRQ, sets the correct
849 * IRQ in the card. Then calls SK_lance_init() to
850 * init and start the LANCE chip. Then if everything is
851 * ok returns with 0 (OK), which means SK_G16 is now
852 * opened and operational.
853 *
854 * (Called by dev_open() /net/inet/dev.c)
855 *
856 * Parameters : I : struct net_device *dev - SK_G16 device structure
857 * Return Value : 0 - Device opened
858 * Errors : -EAGAIN - Open failed
859 * Side Effects : None
860 * Update History :
861 * YY/MM/DD uid Description
862-*/
863
864static int SK_open(struct net_device *dev)
865{
866 int i = 0;
867 int irqval = 0;
868 int ioaddr = dev->base_addr;
869
870 int irqtab[] = SK_IRQS;
871
872 struct priv *p = netdev_priv(dev);
873
874 PRINTK(("## %s: At beginning of SK_open(). CSR0: %#06x\n",
875 SK_NAME, SK_read_reg(CSR0)));
876
877 if (dev->irq == 0) /* Autoirq */
878 {
879 i = 0;
880
881 /*
882 * Check if one IRQ out of SK_IRQS is free and install
883 * interrupt handler.
884 * Most done by request_irq().
885 * irqval: 0 - interrupt handler installed for IRQ irqtab[i]
886 * -EBUSY - interrupt busy
887 * -EINVAL - irq > 15 or handler = NULL
888 */
889
890 do
891 {
892 irqval = request_irq(irqtab[i], &SK_interrupt, 0, "sk_g16", dev);
893 i++;
894 } while (irqval && irqtab[i]);
895
896 if (irqval) /* We tried every possible IRQ but no success */
897 {
898 printk("%s: unable to get an IRQ\n", dev->name);
899 return -EAGAIN;
900 }
901
902 dev->irq = irqtab[--i];
903
904 outb(i<<2, SK_POS4); /* Set Card on probed IRQ */
905
906 }
907 else if (dev->irq == 2) /* IRQ2 is always IRQ9 */
908 {
909 if (request_irq(9, &SK_interrupt, 0, "sk_g16", dev))
910 {
911 printk("%s: unable to get IRQ 9\n", dev->name);
912 return -EAGAIN;
913 }
914 dev->irq = 9;
915
916 /*
917 * Now we set card on IRQ2.
918 * This can be confusing, but remember that IRQ2 on the network
919 * card is in reality IRQ9
920 */
921 outb(0x08, SK_POS4); /* set card to IRQ2 */
922
923 }
924 else /* Check IRQ as defined in Space.c */
925 {
926 int i = 0;
927
928 /* check if IRQ free and valid. Then install Interrupt handler */
929
930 if (request_irq(dev->irq, &SK_interrupt, 0, "sk_g16", dev))
931 {
932 printk("%s: unable to get selected IRQ\n", dev->name);
933 return -EAGAIN;
934 }
935
936 switch(dev->irq)
937 {
938 case 3: i = 0;
939 break;
940 case 5: i = 1;
941 break;
942 case 2: i = 2;
943 break;
944 case 11:i = 3;
945 break;
946 default:
947 printk("%s: Preselected IRQ %d is invalid for %s boards",
948 dev->name,
949 dev->irq,
950 SK_NAME);
951 return -EAGAIN;
952 }
953
954 outb(i<<2, SK_POS4); /* Set IRQ on card */
955 }
956
957 printk("%s: Schneider & Koch G16 at %#3x, IRQ %d, shared mem at %#08x\n",
958 dev->name, (unsigned int)dev->base_addr,
959 (int) dev->irq, (unsigned int) p->ram);
960
961 if (!(i = SK_lance_init(dev, 0))) /* LANCE init OK? */
962 {
963 netif_start_queue(dev);
964
965#ifdef SK_DEBUG
966
967 /*
968 * This debug block tries to stop LANCE,
969 * reinit LANCE with transmitter and receiver disabled,
970 * then stop again and reinit with NORMAL_MODE
971 */
972
973 printk("## %s: After lance init. CSR0: %#06x\n",
974 SK_NAME, SK_read_reg(CSR0));
975 SK_write_reg(CSR0, CSR0_STOP);
976 printk("## %s: LANCE stopped. CSR0: %#06x\n",
977 SK_NAME, SK_read_reg(CSR0));
978 SK_lance_init(dev, MODE_DTX | MODE_DRX);
979 printk("## %s: Reinit with DTX + DRX off. CSR0: %#06x\n",
980 SK_NAME, SK_read_reg(CSR0));
981 SK_write_reg(CSR0, CSR0_STOP);
982 printk("## %s: LANCE stopped. CSR0: %#06x\n",
983 SK_NAME, SK_read_reg(CSR0));
984 SK_lance_init(dev, MODE_NORMAL);
985 printk("## %s: LANCE back to normal mode. CSR0: %#06x\n",
986 SK_NAME, SK_read_reg(CSR0));
987 SK_print_pos(dev, "POS regs before returning OK");
988
989#endif /* SK_DEBUG */
990
991 return 0; /* SK_open() is successful */
992 }
993 else /* LANCE init failed */
994 {
995
996 PRINTK(("## %s: LANCE init failed: CSR0: %#06x\n",
997 SK_NAME, SK_read_reg(CSR0)));
998
999 return -EAGAIN;
1000 }
1001
1002} /* End of SK_open() */
1003
1004
1005/*-
1006 * Function : SK_lance_init
1007 * Author : Patrick J.D. Weichmann
1008 * Date Created : 94/05/26
1009 *
1010 * Description : Reset LANCE chip, fill RMD, TMD structures with
1011 * start values and Start LANCE.
1012 *
1013 * Parameters : I : struct net_device *dev - SK_G16 device structure
1014 * I : int mode - put LANCE into "mode" see data-sheet for
1015 * more info.
1016 * Return Value : 0 - Init done
1017 * Errors : -1 - Init failed
1018 * Update History :
1019 * YY/MM/DD uid Description
1020-*/
1021
1022static int SK_lance_init(struct net_device *dev, unsigned short mode)
1023{
1024 int i;
1025 unsigned long flags;
1026 struct priv *p = netdev_priv(dev);
1027 struct tmd *tmdp;
1028 struct rmd *rmdp;
1029
1030 PRINTK(("## %s: At beginning of LANCE init. CSR0: %#06x\n",
1031 SK_NAME, SK_read_reg(CSR0)));
1032
1033 /* Reset LANCE */
1034 SK_reset_board();
1035
1036 /* Initialize TMD's with start values */
1037 p->tmdnum = 0; /* First descriptor for transmitting */
1038 p->tmdlast = 0; /* First descriptor for reading stats */
1039
1040 for (i = 0; i < TMDNUM; i++) /* Init all TMD's */
1041 {
1042 tmdp = p->tmdhead + i;
1043
1044 writel((unsigned long) p->tmdbufs[i], tmdp->u.buffer); /* assign buffer */
1045
1046 /* Mark TMD as start and end of packet */
1047 writeb(TX_STP | TX_ENP, &tmdp->u.s.status);
1048 }
1049
1050
1051 /* Initialize RMD's with start values */
1052
1053 p->rmdnum = 0; /* First RMD which will be used */
1054
1055 for (i = 0; i < RMDNUM; i++) /* Init all RMD's */
1056 {
1057 rmdp = p->rmdhead + i;
1058
1059
1060 writel((unsigned long) p->rmdbufs[i], rmdp->u.buffer); /* assign buffer */
1061
1062 /*
1063 * LANCE must be owner at beginning so that he can fill in
1064 * receiving packets, set status and release RMD
1065 */
1066
1067 writeb(RX_OWN, &rmdp->u.s.status);
1068
1069 writew(-PKT_BUF_SZ, &rmdp->blen); /* Buffer Size (two's complement) */
1070
1071 writeb(0, &rmdp->mlen); /* init message length */
1072
1073 }
1074
1075 /* Fill LANCE Initialize Block */
1076
1077 writew(mode, (&((p->ram)->ib.mode))); /* Set operation mode */
1078
1079 for (i = 0; i < ETH_ALEN; i++) /* Set physical address */
1080 {
1081 writeb(dev->dev_addr[i], (&((p->ram)->ib.paddr[i])));
1082 }
1083
1084 for (i = 0; i < 8; i++) /* Set multicast, logical address */
1085 {
1086 writeb(0, (&((p->ram)->ib.laddr[i]))); /* We do not use logical addressing */
1087 }
1088
1089 /* Set ring descriptor pointers and set number of descriptors */
1090
1091 writel((int)p->rmdhead | RMDNUMMASK, (&((p->ram)->ib.rdrp)));
1092 writel((int)p->tmdhead | TMDNUMMASK, (&((p->ram)->ib.tdrp)));
1093
1094 /* Prepare LANCE Control and Status Registers */
1095
1096 spin_lock_irqsave(&SK_lock, flags);
1097
1098 SK_write_reg(CSR3, CSR3_ACON); /* Ale Control !!!THIS MUST BE SET!!!! */
1099
1100 /*
1101 * LANCE addresses the RAM from 0x0000 to 0x3fbf and has no access to
1102 * PC Memory locations.
1103 *
1104 * In structure SK_ram is defined that the first thing in ram
1105 * is the initialization block. So his address is for LANCE always
1106 * 0x0000
1107 *
1108 * CSR1 contains low order bits 15:0 of initialization block address
1109 * CSR2 is built of:
1110 * 7:0 High order bits 23:16 of initialization block address
1111 * 15:8 reserved, must be 0
1112 */
1113
1114 /* Set initialization block address (must be on word boundary) */
1115 SK_write_reg(CSR1, 0); /* Set low order bits 15:0 */
1116 SK_write_reg(CSR2, 0); /* Set high order bits 23:16 */
1117
1118
1119 PRINTK(("## %s: After setting CSR1-3. CSR0: %#06x\n",
1120 SK_NAME, SK_read_reg(CSR0)));
1121
1122 /* Initialize LANCE */
1123
1124 /*
1125 * INIT = Initialize, when set, causes the LANCE to begin the
1126 * initialization procedure and access the Init Block.
1127 */
1128
1129 SK_write_reg(CSR0, CSR0_INIT);
1130
1131 spin_unlock_irqrestore(&SK_lock, flags);
1132
1133 /* Wait until LANCE finished initialization */
1134
1135 SK_set_RAP(CSR0); /* Register Address Pointer to CSR0 */
1136
1137 for (i = 0; (i < 100) && !(SK_rread_reg() & CSR0_IDON); i++)
1138 ; /* Wait until init done or go ahead if problems (i>=100) */
1139
1140 if (i >= 100) /* Something is wrong ! */
1141 {
1142 printk("%s: can't init am7990, status: %04x "
1143 "init_block: %#08x\n",
1144 dev->name, (int) SK_read_reg(CSR0),
1145 (unsigned int) &(p->ram)->ib);
1146
1147#ifdef SK_DEBUG
1148 SK_print_pos(dev, "LANCE INIT failed");
1149 SK_print_dev(dev,"Device Structure:");
1150#endif
1151
1152 return -1; /* LANCE init failed */
1153 }
1154
1155 PRINTK(("## %s: init done after %d ticks\n", SK_NAME, i));
1156
1157 /* Clear Initialize done, enable Interrupts, start LANCE */
1158
1159 SK_write_reg(CSR0, CSR0_IDON | CSR0_INEA | CSR0_STRT);
1160
1161 PRINTK(("## %s: LANCE started. CSR0: %#06x\n", SK_NAME,
1162 SK_read_reg(CSR0)));
1163
1164 return 0; /* LANCE is up and running */
1165
1166} /* End of SK_lance_init() */
1167
1168
1169
1170/*-
1171 * Function : SK_send_packet
1172 * Author : Patrick J.D. Weichmann
1173 * Date Created : 94/05/27
1174 *
1175 * Description : Writes an socket buffer into a transmit descriptor
1176 * and starts transmission.
1177 *
1178 * Parameters : I : struct sk_buff *skb - packet to transfer
1179 * I : struct net_device *dev - SK_G16 device structure
1180 * Return Value : 0 - OK
1181 * 1 - Could not transmit (dev_queue_xmit will queue it)
1182 * and try to sent it later
1183 * Globals : None
1184 * Side Effects : None
1185 * Update History :
1186 * YY/MM/DD uid Description
1187-*/
1188
1189static void SK_timeout(struct net_device *dev)
1190{
1191 printk(KERN_WARNING "%s: xmitter timed out, try to restart!\n", dev->name);
1192 SK_lance_init(dev, MODE_NORMAL); /* Reinit LANCE */
1193 netif_wake_queue(dev); /* Clear Transmitter flag */
1194 dev->trans_start = jiffies; /* Mark Start of transmission */
1195}
1196
1197static int SK_send_packet(struct sk_buff *skb, struct net_device *dev)
1198{
1199 struct priv *p = netdev_priv(dev);
1200 struct tmd *tmdp;
1201 static char pad[64];
1202
1203 PRINTK2(("## %s: SK_send_packet() called, CSR0 %#04x.\n",
1204 SK_NAME, SK_read_reg(CSR0)));
1205
1206
1207 /*
1208 * Block a timer-based transmit from overlapping.
1209 * This means check if we are already in.
1210 */
1211
1212 netif_stop_queue (dev);
1213
1214 {
1215
1216 /* Evaluate Packet length */
1217 short len = ETH_ZLEN < skb->len ? skb->len : ETH_ZLEN;
1218
1219 tmdp = p->tmdhead + p->tmdnum; /* Which descriptor for transmitting */
1220
1221 /* Fill in Transmit Message Descriptor */
1222
1223 /* Copy data into dual ported ram */
1224
1225 memcpy_toio((tmdp->u.buffer & 0x00ffffff), skb->data, skb->len);
1226 if (len != skb->len)
1227 memcpy_toio((tmdp->u.buffer & 0x00ffffff) + skb->len, pad, len-skb->len);
1228
1229 writew(-len, &tmdp->blen); /* set length to transmit */
1230
1231 /*
1232 * Packet start and end is always set because we use the maximum
1233 * packet length as buffer length.
1234 * Relinquish ownership to LANCE
1235 */
1236
1237 writeb(TX_OWN | TX_STP | TX_ENP, &tmdp->u.s.status);
1238
1239 /* Start Demand Transmission */
1240 SK_write_reg(CSR0, CSR0_TDMD | CSR0_INEA);
1241
1242 dev->trans_start = jiffies; /* Mark start of transmission */
1243
1244 /* Set pointer to next transmit buffer */
1245 p->tmdnum++;
1246 p->tmdnum &= TMDNUM-1;
1247
1248 /* Do we own the next transmit buffer ? */
1249 if (! (readb(&((p->tmdhead + p->tmdnum)->u.s.status)) & TX_OWN) )
1250 {
1251 /*
1252 * We own next buffer and are ready to transmit, so
1253 * clear busy flag
1254 */
1255 netif_start_queue(dev);
1256 }
1257
1258 p->stats.tx_bytes += skb->len;
1259
1260 }
1261
1262 dev_kfree_skb(skb);
1263 return 0;
1264} /* End of SK_send_packet */
1265
1266
1267/*-
1268 * Function : SK_interrupt
1269 * Author : Patrick J.D. Weichmann
1270 * Date Created : 94/05/27
1271 *
1272 * Description : SK_G16 interrupt handler which checks for LANCE
1273 * Errors, handles transmit and receive interrupts
1274 *
1275 * Parameters : I : int irq, void *dev_id, struct pt_regs * regs -
1276 * Return Value : None
1277 * Errors : None
1278 * Globals : None
1279 * Side Effects : None
1280 * Update History :
1281 * YY/MM/DD uid Description
1282-*/
1283
1284static irqreturn_t SK_interrupt(int irq, void *dev_id, struct pt_regs * regs)
1285{
1286 int csr0;
1287 struct net_device *dev = dev_id;
1288 struct priv *p = netdev_priv(dev);
1289
1290
1291 PRINTK2(("## %s: SK_interrupt(). status: %#06x\n",
1292 SK_NAME, SK_read_reg(CSR0)));
1293
1294 if (dev == NULL)
1295 {
1296 printk("SK_interrupt(): IRQ %d for unknown device.\n", irq);
1297 }
1298
1299 spin_lock (&SK_lock);
1300
1301 csr0 = SK_read_reg(CSR0); /* store register for checking */
1302
1303 /*
1304 * Acknowledge all of the current interrupt sources, disable
1305 * Interrupts (INEA = 0)
1306 */
1307
1308 SK_write_reg(CSR0, csr0 & CSR0_CLRALL);
1309
1310 if (csr0 & CSR0_ERR) /* LANCE Error */
1311 {
1312 printk("%s: error: %04x\n", dev->name, csr0);
1313
1314 if (csr0 & CSR0_MISS) /* No place to store packet ? */
1315 {
1316 p->stats.rx_dropped++;
1317 }
1318 }
1319
1320 if (csr0 & CSR0_RINT) /* Receive Interrupt (packet arrived) */
1321 {
1322 SK_rxintr(dev);
1323 }
1324
1325 if (csr0 & CSR0_TINT) /* Transmit interrupt (packet sent) */
1326 {
1327 SK_txintr(dev);
1328 }
1329
1330 SK_write_reg(CSR0, CSR0_INEA); /* Enable Interrupts */
1331
1332 spin_unlock (&SK_lock);
1333 return IRQ_HANDLED;
1334} /* End of SK_interrupt() */
1335
1336
1337/*-
1338 * Function : SK_txintr
1339 * Author : Patrick J.D. Weichmann
1340 * Date Created : 94/05/27
1341 *
1342 * Description : After sending a packet we check status, update
1343 * statistics and relinquish ownership of transmit
1344 * descriptor ring.
1345 *
1346 * Parameters : I : struct net_device *dev - SK_G16 device structure
1347 * Return Value : None
1348 * Errors : None
1349 * Globals : None
1350 * Update History :
1351 * YY/MM/DD uid Description
1352-*/
1353
1354static void SK_txintr(struct net_device *dev)
1355{
1356 int tmdstat;
1357 struct tmd *tmdp;
1358 struct priv *p = netdev_priv(dev);
1359
1360
1361 PRINTK2(("## %s: SK_txintr() status: %#06x\n",
1362 SK_NAME, SK_read_reg(CSR0)));
1363
1364 tmdp = p->tmdhead + p->tmdlast; /* Which buffer we sent at last ? */
1365
1366 /* Set next buffer */
1367 p->tmdlast++;
1368 p->tmdlast &= TMDNUM-1;
1369
1370 tmdstat = readb(&tmdp->u.s.status);
1371
1372 /*
1373 * We check status of transmitted packet.
1374 * see LANCE data-sheet for error explanation
1375 */
1376 if (tmdstat & TX_ERR) /* Error occurred */
1377 {
1378 int stat2 = readw(&tmdp->status2);
1379
1380 printk("%s: TX error: %04x %04x\n", dev->name, tmdstat, stat2);
1381
1382 if (stat2 & TX_TDR) /* TDR problems? */
1383 {
1384 printk("%s: tdr-problems \n", dev->name);
1385 }
1386
1387 if (stat2 & TX_RTRY) /* Failed in 16 attempts to transmit ? */
1388 p->stats.tx_aborted_errors++;
1389 if (stat2 & TX_LCOL) /* Late collision ? */
1390 p->stats.tx_window_errors++;
1391 if (stat2 & TX_LCAR) /* Loss of Carrier ? */
1392 p->stats.tx_carrier_errors++;
1393 if (stat2 & TX_UFLO) /* Underflow error ? */
1394 {
1395 p->stats.tx_fifo_errors++;
1396
1397 /*
1398 * If UFLO error occurs it will turn transmitter of.
1399 * So we must reinit LANCE
1400 */
1401
1402 SK_lance_init(dev, MODE_NORMAL);
1403 }
1404
1405 p->stats.tx_errors++;
1406
1407 writew(0, &tmdp->status2); /* Clear error flags */
1408 }
1409 else if (tmdstat & TX_MORE) /* Collisions occurred ? */
1410 {
1411 /*
1412 * Here I have a problem.
1413 * I only know that there must be one or up to 15 collisions.
1414 * That's why TX_MORE is set, because after 16 attempts TX_RTRY
1415 * will be set which means couldn't send packet aborted transfer.
1416 *
1417 * First I did not have this in but then I thought at minimum
1418 * we see that something was not ok.
1419 * If anyone knows something better than this to handle this
1420 * please report it.
1421 */
1422
1423 p->stats.collisions++;
1424 }
1425 else /* Packet sent without any problems */
1426 {
1427 p->stats.tx_packets++;
1428 }
1429
1430 /*
1431 * We mark transmitter not busy anymore, because now we have a free
1432 * transmit descriptor which can be filled by SK_send_packet and
1433 * afterwards sent by the LANCE
1434 *
1435 * The function which do handle slow IRQ parts is do_bottom_half()
1436 * which runs at normal kernel priority, that means all interrupt are
1437 * enabled. (see kernel/irq.c)
1438 *
1439 * net_bh does something like this:
1440 * - check if already in net_bh
1441 * - try to transmit something from the send queue
1442 * - if something is in the receive queue send it up to higher
1443 * levels if it is a known protocol
1444 * - try to transmit something from the send queue
1445 */
1446
1447 netif_wake_queue(dev);
1448
1449} /* End of SK_txintr() */
1450
1451
1452/*-
1453 * Function : SK_rxintr
1454 * Author : Patrick J.D. Weichmann
1455 * Date Created : 94/05/27
1456 *
1457 * Description : Buffer sent, check for errors, relinquish ownership
1458 * of the receive message descriptor.
1459 *
1460 * Parameters : I : SK_G16 device structure
1461 * Return Value : None
1462 * Globals : None
1463 * Update History :
1464 * YY/MM/DD uid Description
1465-*/
1466
1467static void SK_rxintr(struct net_device *dev)
1468{
1469
1470 struct rmd *rmdp;
1471 int rmdstat;
1472 struct priv *p = netdev_priv(dev);
1473
1474 PRINTK2(("## %s: SK_rxintr(). CSR0: %#06x\n",
1475 SK_NAME, SK_read_reg(CSR0)));
1476
1477 rmdp = p->rmdhead + p->rmdnum;
1478
1479 /* As long as we own the next entry, check status and send
1480 * it up to higher layer
1481 */
1482
1483 while (!( (rmdstat = readb(&rmdp->u.s.status)) & RX_OWN))
1484 {
1485 /*
1486 * Start and end of packet must be set, because we use
1487 * the ethernet maximum packet length (1518) as buffer size.
1488 *
1489 * Because our buffers are at maximum OFLO and BUFF errors are
1490 * not to be concerned (see Data sheet)
1491 */
1492
1493 if ((rmdstat & (RX_STP | RX_ENP)) != (RX_STP | RX_ENP))
1494 {
1495 /* Start of a frame > 1518 Bytes ? */
1496
1497 if (rmdstat & RX_STP)
1498 {
1499 p->stats.rx_errors++; /* bad packet received */
1500 p->stats.rx_length_errors++; /* packet too long */
1501
1502 printk("%s: packet too long\n", dev->name);
1503 }
1504
1505 /*
1506 * All other packets will be ignored until a new frame with
1507 * start (RX_STP) set follows.
1508 *
1509 * What we do is just give descriptor free for new incoming
1510 * packets.
1511 */
1512
1513 writeb(RX_OWN, &rmdp->u.s.status); /* Relinquish ownership to LANCE */
1514
1515 }
1516 else if (rmdstat & RX_ERR) /* Receive Error ? */
1517 {
1518 printk("%s: RX error: %04x\n", dev->name, (int) rmdstat);
1519
1520 p->stats.rx_errors++;
1521
1522 if (rmdstat & RX_FRAM) p->stats.rx_frame_errors++;
1523 if (rmdstat & RX_CRC) p->stats.rx_crc_errors++;
1524
1525 writeb(RX_OWN, &rmdp->u.s.status); /* Relinquish ownership to LANCE */
1526
1527 }
1528 else /* We have a packet which can be queued for the upper layers */
1529 {
1530
1531 int len = readw(&rmdp->mlen) & 0x0fff; /* extract message length from receive buffer */
1532 struct sk_buff *skb;
1533
1534 skb = dev_alloc_skb(len+2); /* allocate socket buffer */
1535
1536 if (skb == NULL) /* Could not get mem ? */
1537 {
1538
1539 /*
1540 * Couldn't allocate sk_buffer so we give descriptor back
1541 * to Lance, update statistics and go ahead.
1542 */
1543
1544 writeb(RX_OWN, &rmdp->u.s.status); /* Relinquish ownership to LANCE */
1545 printk("%s: Couldn't allocate sk_buff, deferring packet.\n",
1546 dev->name);
1547 p->stats.rx_dropped++;
1548
1549 break; /* Jump out */
1550 }
1551
1552 /* Prepare sk_buff to queue for upper layers */
1553
1554 skb->dev = dev;
1555 skb_reserve(skb,2); /* Align IP header on 16 byte boundary */
1556
1557 /*
1558 * Copy data out of our receive descriptor into sk_buff.
1559 *
1560 * (rmdp->u.buffer & 0x00ffffff) -> get address of buffer and
1561 * ignore status fields)
1562 */
1563
1564 memcpy_fromio(skb_put(skb,len), (rmdp->u.buffer & 0x00ffffff), len);
1565
1566
1567 /*
1568 * Notify the upper protocol layers that there is another packet
1569 * to handle
1570 *
1571 * netif_rx() always succeeds. see /net/inet/dev.c for more.
1572 */
1573
1574 skb->protocol=eth_type_trans(skb,dev);
1575 netif_rx(skb); /* queue packet and mark it for processing */
1576
1577 /*
1578 * Packet is queued and marked for processing so we
1579 * free our descriptor and update statistics
1580 */
1581
1582 writeb(RX_OWN, &rmdp->u.s.status);
1583 dev->last_rx = jiffies;
1584 p->stats.rx_packets++;
1585 p->stats.rx_bytes += len;
1586
1587
1588 p->rmdnum++;
1589 p->rmdnum %= RMDNUM;
1590
1591 rmdp = p->rmdhead + p->rmdnum;
1592 }
1593 }
1594} /* End of SK_rxintr() */
1595
1596
1597/*-
1598 * Function : SK_close
1599 * Author : Patrick J.D. Weichmann
1600 * Date Created : 94/05/26
1601 *
1602 * Description : close gets called from dev_close() and should
1603 * deinstall the card (free_irq, mem etc).
1604 *
1605 * Parameters : I : struct net_device *dev - our device structure
1606 * Return Value : 0 - closed device driver
1607 * Errors : None
1608 * Globals : None
1609 * Update History :
1610 * YY/MM/DD uid Description
1611-*/
1612
1613/* I have tried to set BOOT_ROM on and RAM off but then, after a 'ifconfig
1614 * down' the system stops. So I don't shut set card to init state.
1615 */
1616
1617static int SK_close(struct net_device *dev)
1618{
1619
1620 PRINTK(("## %s: SK_close(). CSR0: %#06x\n",
1621 SK_NAME, SK_read_reg(CSR0)));
1622
1623 netif_stop_queue(dev); /* Transmitter busy */
1624
1625 printk("%s: Shutting %s down CSR0 %#06x\n", dev->name, SK_NAME,
1626 (int) SK_read_reg(CSR0));
1627
1628 SK_write_reg(CSR0, CSR0_STOP); /* STOP the LANCE */
1629
1630 free_irq(dev->irq, dev); /* Free IRQ */
1631
1632 return 0; /* always succeed */
1633
1634} /* End of SK_close() */
1635
1636
1637/*-
1638 * Function : SK_get_stats
1639 * Author : Patrick J.D. Weichmann
1640 * Date Created : 94/05/26
1641 *
1642 * Description : Return current status structure to upper layers.
1643 * It is called by sprintf_stats (dev.c).
1644 *
1645 * Parameters : I : struct net_device *dev - our device structure
1646 * Return Value : struct net_device_stats * - our current statistics
1647 * Errors : None
1648 * Side Effects : None
1649 * Update History :
1650 * YY/MM/DD uid Description
1651-*/
1652
1653static struct net_device_stats *SK_get_stats(struct net_device *dev)
1654{
1655
1656 struct priv *p = netdev_priv(dev);
1657
1658 PRINTK(("## %s: SK_get_stats(). CSR0: %#06x\n",
1659 SK_NAME, SK_read_reg(CSR0)));
1660
1661 return &p->stats; /* Return Device status */
1662
1663} /* End of SK_get_stats() */
1664
1665
1666/*-
1667 * Function : set_multicast_list
1668 * Author : Patrick J.D. Weichmann
1669 * Date Created : 94/05/26
1670 *
1671 * Description : This function gets called when a program performs
1672 * a SIOCSIFFLAGS call. Ifconfig does this if you call
1673 * 'ifconfig [-]allmulti' which enables or disables the
1674 * Promiscuous mode.
1675 * Promiscuous mode is when the Network card accepts all
1676 * packets, not only the packets which match our MAC
1677 * Address. It is useful for writing a network monitor,
1678 * but it is also a security problem. You have to remember
1679 * that all information on the net is not encrypted.
1680 *
1681 * Parameters : I : struct net_device *dev - SK_G16 device Structure
1682 * Return Value : None
1683 * Errors : None
1684 * Globals : None
1685 * Update History :
1686 * YY/MM/DD uid Description
1687 * 95/10/18 ACox New multicast calling scheme
1688-*/
1689
1690
1691/* Set or clear the multicast filter for SK_G16.
1692 */
1693
1694static void set_multicast_list(struct net_device *dev)
1695{
1696
1697 if (dev->flags&IFF_PROMISC)
1698 {
1699 /* Reinitialize LANCE with MODE_PROM set */
1700 SK_lance_init(dev, MODE_PROM);
1701 }
1702 else if (dev->mc_count==0 && !(dev->flags&IFF_ALLMULTI))
1703 {
1704 /* Reinitialize LANCE without MODE_PROM */
1705 SK_lance_init(dev, MODE_NORMAL);
1706 }
1707 else
1708 {
1709 /* Multicast with logical address filter on */
1710 /* Reinitialize LANCE without MODE_PROM */
1711 SK_lance_init(dev, MODE_NORMAL);
1712
1713 /* Not implemented yet. */
1714 }
1715} /* End of set_multicast_list() */
1716
1717
1718
1719/*-
1720 * Function : SK_rom_addr
1721 * Author : Patrick J.D. Weichmann
1722 * Date Created : 94/06/01
1723 *
1724 * Description : Try to find a Boot_ROM at all possible locations
1725 *
1726 * Parameters : None
1727 * Return Value : Address where Boot_ROM is
1728 * Errors : 0 - Did not find Boot_ROM
1729 * Globals : None
1730 * Update History :
1731 * YY/MM/DD uid Description
1732-*/
1733
1734unsigned int __init SK_rom_addr(void)
1735{
1736 int i,j;
1737 int rom_found = 0;
1738 unsigned int rom_location[] = SK_BOOT_ROM_LOCATIONS;
1739 unsigned char rom_id[] = SK_BOOT_ROM_ID;
1740 unsigned char test_byte;
1741
1742 /* Autodetect Boot_ROM */
1743 PRINTK(("## %s: Autodetection of Boot_ROM\n", SK_NAME));
1744
1745 for (i = 0; (rom_location[i] != 0) && (rom_found == 0); i++)
1746 {
1747
1748 PRINTK(("## Trying ROM location %#08x", rom_location[i]));
1749
1750 rom_found = 1;
1751 for (j = 0; j < 6; j++)
1752 {
1753 test_byte = readb(rom_location[i]+j);
1754 PRINTK((" %02x ", *test_byte));
1755
1756 if(test_byte != rom_id[j])
1757 {
1758 rom_found = 0;
1759 }
1760 }
1761 PRINTK(("\n"));
1762 }
1763
1764 if (rom_found == 1)
1765 {
1766 PRINTK(("## %s: Boot_ROM found at %#08x\n",
1767 SK_NAME, rom_location[(i-1)]));
1768
1769 return (rom_location[--i]);
1770 }
1771 else
1772 {
1773 PRINTK(("%s: No Boot_ROM found\n", SK_NAME));
1774 return 0;
1775 }
1776} /* End of SK_rom_addr() */
1777
1778
1779
1780/* LANCE access functions
1781 *
1782 * ! CSR1-3 can only be accessed when in CSR0 the STOP bit is set !
1783 */
1784
1785
1786/*-
1787 * Function : SK_reset_board
1788 *
1789 * Author : Patrick J.D. Weichmann
1790 *
1791 * Date Created : 94/05/25
1792 *
1793 * Description : This function resets SK_G16 and all components, but
1794 * POS registers are not changed
1795 *
1796 * Parameters : None
1797 * Return Value : None
1798 * Errors : None
1799 * Globals : SK_RAM *board - SK_RAM structure pointer
1800 *
1801 * Update History :
1802 * YY/MM/DD uid Description
1803-*/
1804
1805void SK_reset_board(void)
1806{
1807 writeb(0x00, SK_PORT); /* Reset active */
1808 mdelay(5); /* Delay min 5ms */
1809 writeb(SK_RESET, SK_PORT); /* Set back to normal operation */
1810
1811} /* End of SK_reset_board() */
1812
1813
1814/*-
1815 * Function : SK_set_RAP
1816 * Author : Patrick J.D. Weichmann
1817 * Date Created : 94/05/25
1818 *
1819 * Description : Set LANCE Register Address Port to register
1820 * for later data transfer.
1821 *
1822 * Parameters : I : reg_number - which CSR to read/write from/to
1823 * Return Value : None
1824 * Errors : None
1825 * Globals : SK_RAM *board - SK_RAM structure pointer
1826 * Update History :
1827 * YY/MM/DD uid Description
1828-*/
1829
1830void SK_set_RAP(int reg_number)
1831{
1832 writew(reg_number, SK_IOREG);
1833 writeb(SK_RESET | SK_RAP | SK_WREG, SK_PORT);
1834 writeb(SK_DOIO, SK_IOCOM);
1835
1836 while (readb(SK_PORT) & SK_IORUN)
1837 barrier();
1838} /* End of SK_set_RAP() */
1839
1840
1841/*-
1842 * Function : SK_read_reg
1843 * Author : Patrick J.D. Weichmann
1844 * Date Created : 94/05/25
1845 *
1846 * Description : Set RAP and read data from a LANCE CSR register
1847 *
1848 * Parameters : I : reg_number - which CSR to read from
1849 * Return Value : Register contents
1850 * Errors : None
1851 * Globals : SK_RAM *board - SK_RAM structure pointer
1852 * Update History :
1853 * YY/MM/DD uid Description
1854-*/
1855
1856int SK_read_reg(int reg_number)
1857{
1858 SK_set_RAP(reg_number);
1859
1860 writeb(SK_RESET | SK_RDATA | SK_RREG, SK_PORT);
1861 writeb(SK_DOIO, SK_IOCOM);
1862
1863 while (readb(SK_PORT) & SK_IORUN)
1864 barrier();
1865 return (readw(SK_IOREG));
1866
1867} /* End of SK_read_reg() */
1868
1869
1870/*-
1871 * Function : SK_rread_reg
1872 * Author : Patrick J.D. Weichmann
1873 * Date Created : 94/05/28
1874 *
1875 * Description : Read data from preseted register.
1876 * This function requires that you know which
1877 * Register is actually set. Be aware that CSR1-3
1878 * can only be accessed when in CSR0 STOP is set.
1879 *
1880 * Return Value : Register contents
1881 * Errors : None
1882 * Globals : SK_RAM *board - SK_RAM structure pointer
1883 * Update History :
1884 * YY/MM/DD uid Description
1885-*/
1886
1887int SK_rread_reg(void)
1888{
1889 writeb(SK_RESET | SK_RDATA | SK_RREG, SK_PORT);
1890
1891 writeb(SK_DOIO, SK_IOCOM);
1892
1893 while (readb(SK_PORT) & SK_IORUN)
1894 barrier();
1895 return (readw(SK_IOREG));
1896
1897} /* End of SK_rread_reg() */
1898
1899
1900/*-
1901 * Function : SK_write_reg
1902 * Author : Patrick J.D. Weichmann
1903 * Date Created : 94/05/25
1904 *
1905 * Description : This function sets the RAP then fills in the
1906 * LANCE I/O Reg and starts Transfer to LANCE.
1907 * It waits until transfer has ended which is max. 7 ms
1908 * and then it returns.
1909 *
1910 * Parameters : I : reg_number - which CSR to write to
1911 * I : value - what value to fill into register
1912 * Return Value : None
1913 * Errors : None
1914 * Globals : SK_RAM *board - SK_RAM structure pointer
1915 * Update History :
1916 * YY/MM/DD uid Description
1917-*/
1918
1919void SK_write_reg(int reg_number, int value)
1920{
1921 SK_set_RAP(reg_number);
1922
1923 writew(value, SK_IOREG);
1924 writeb(SK_RESET | SK_RDATA | SK_WREG, SK_PORT);
1925 writeb(SK_DOIO, SK_IOCOM);
1926
1927 while (readb(SK_PORT) & SK_IORUN)
1928 barrier();
1929} /* End of SK_write_reg */
1930
1931
1932
1933/*
1934 * Debugging functions
1935 * -------------------
1936 */
1937
1938/*-
1939 * Function : SK_print_pos
1940 * Author : Patrick J.D. Weichmann
1941 * Date Created : 94/05/25
1942 *
1943 * Description : This function prints out the 4 POS (Programmable
1944 * Option Select) Registers. Used mainly to debug operation.
1945 *
1946 * Parameters : I : struct net_device *dev - SK_G16 device structure
1947 * I : char * - Text which will be printed as title
1948 * Return Value : None
1949 * Errors : None
1950 * Update History :
1951 * YY/MM/DD uid Description
1952-*/
1953
1954void SK_print_pos(struct net_device *dev, char *text)
1955{
1956 int ioaddr = dev->base_addr;
1957
1958 unsigned char pos0 = inb(SK_POS0),
1959 pos1 = inb(SK_POS1),
1960 pos2 = inb(SK_POS2),
1961 pos3 = inb(SK_POS3),
1962 pos4 = inb(SK_POS4);
1963
1964
1965 printk("## %s: %s.\n"
1966 "## pos0=%#4x pos1=%#4x pos2=%#04x pos3=%#08x pos4=%#04x\n",
1967 SK_NAME, text, pos0, pos1, pos2, (pos3<<14), pos4);
1968
1969} /* End of SK_print_pos() */
1970
1971
1972
1973/*-
1974 * Function : SK_print_dev
1975 * Author : Patrick J.D. Weichmann
1976 * Date Created : 94/05/25
1977 *
1978 * Description : This function simply prints out the important fields
1979 * of the device structure.
1980 *
1981 * Parameters : I : struct net_device *dev - SK_G16 device structure
1982 * I : char *text - Title for printing
1983 * Return Value : None
1984 * Errors : None
1985 * Update History :
1986 * YY/MM/DD uid Description
1987-*/
1988
1989void SK_print_dev(struct net_device *dev, char *text)
1990{
1991 if (dev == NULL)
1992 {
1993 printk("## %s: Device Structure. %s\n", SK_NAME, text);
1994 printk("## DEVICE == NULL\n");
1995 }
1996 else
1997 {
1998 printk("## %s: Device Structure. %s\n", SK_NAME, text);
1999 printk("## Device Name: %s Base Address: %#06lx IRQ: %d\n",
2000 dev->name, dev->base_addr, dev->irq);
2001
2002 printk("## next device: %#08x init function: %#08x\n",
2003 (int) dev->next, (int) dev->init);
2004 }
2005
2006} /* End of SK_print_dev() */
2007
2008
2009
2010/*-
2011 * Function : SK_print_ram
2012 * Author : Patrick J.D. Weichmann
2013 * Date Created : 94/06/02
2014 *
2015 * Description : This function is used to check how are things set up
2016 * in the 16KB RAM. Also the pointers to the receive and
2017 * transmit descriptor rings and rx and tx buffers locations.
2018 * It contains a minor bug in printing, but has no effect to the values
2019 * only newlines are not correct.
2020 *
2021 * Parameters : I : struct net_device *dev - SK_G16 device structure
2022 * Return Value : None
2023 * Errors : None
2024 * Globals : None
2025 * Update History :
2026 * YY/MM/DD uid Description
2027-*/
2028
2029void __init SK_print_ram(struct net_device *dev)
2030{
2031
2032 int i;
2033 struct priv *p = netdev_priv(dev);
2034
2035 printk("## %s: RAM Details.\n"
2036 "## RAM at %#08x tmdhead: %#08x rmdhead: %#08x initblock: %#08x\n",
2037 SK_NAME,
2038 (unsigned int) p->ram,
2039 (unsigned int) p->tmdhead,
2040 (unsigned int) p->rmdhead,
2041 (unsigned int) &(p->ram)->ib);
2042
2043 printk("## ");
2044
2045 for(i = 0; i < TMDNUM; i++)
2046 {
2047 if (!(i % 3)) /* Every third line do a newline */
2048 {
2049 printk("\n## ");
2050 }
2051 printk("tmdbufs%d: %#08x ", (i+1), (int) p->tmdbufs[i]);
2052 }
2053 printk("## ");
2054
2055 for(i = 0; i < RMDNUM; i++)
2056 {
2057 if (!(i % 3)) /* Every third line do a newline */
2058 {
2059 printk("\n## ");
2060 }
2061 printk("rmdbufs%d: %#08x ", (i+1), (int) p->rmdbufs[i]);
2062 }
2063 printk("\n");
2064
2065} /* End of SK_print_ram() */
2066
diff --git a/drivers/net/sk_g16.h b/drivers/net/sk_g16.h
deleted file mode 100644
index 0a5dc0908a04..000000000000
--- a/drivers/net/sk_g16.h
+++ /dev/null
@@ -1,165 +0,0 @@
1/*-
2 *
3 * This software may be used and distributed according to the terms
4 * of the GNU General Public License, incorporated herein by reference.
5 *
6 * Module : sk_g16.h
7 * Version : $Revision$
8 *
9 * Author : M.Hipp (mhipp@student.uni-tuebingen.de)
10 * changes by : Patrick J.D. Weichmann
11 *
12 * Date Created : 94/05/25
13 *
14 * Description : In here are all necessary definitions of
15 * the am7990 (LANCE) chip used for writing a
16 * network device driver which uses this chip
17 *
18 * $Log$
19-*/
20
21#ifndef SK_G16_H
22
23#define SK_G16_H
24
25
26/*
27 * Control and Status Register 0 (CSR0) bit definitions
28 *
29 * (R=Readable) (W=Writeable) (S=Set on write) (C-Clear on write)
30 *
31 */
32
33#define CSR0_ERR 0x8000 /* Error summary (R) */
34#define CSR0_BABL 0x4000 /* Babble transmitter timeout error (RC) */
35#define CSR0_CERR 0x2000 /* Collision Error (RC) */
36#define CSR0_MISS 0x1000 /* Missed packet (RC) */
37#define CSR0_MERR 0x0800 /* Memory Error (RC) */
38#define CSR0_RINT 0x0400 /* Receiver Interrupt (RC) */
39#define CSR0_TINT 0x0200 /* Transmit Interrupt (RC) */
40#define CSR0_IDON 0x0100 /* Initialization Done (RC) */
41#define CSR0_INTR 0x0080 /* Interrupt Flag (R) */
42#define CSR0_INEA 0x0040 /* Interrupt Enable (RW) */
43#define CSR0_RXON 0x0020 /* Receiver on (R) */
44#define CSR0_TXON 0x0010 /* Transmitter on (R) */
45#define CSR0_TDMD 0x0008 /* Transmit Demand (RS) */
46#define CSR0_STOP 0x0004 /* Stop (RS) */
47#define CSR0_STRT 0x0002 /* Start (RS) */
48#define CSR0_INIT 0x0001 /* Initialize (RS) */
49
50#define CSR0_CLRALL 0x7f00 /* mask for all clearable bits */
51
52/*
53 * Control and Status Register 3 (CSR3) bit definitions
54 *
55 */
56
57#define CSR3_BSWAP 0x0004 /* Byte Swap (RW) */
58#define CSR3_ACON 0x0002 /* ALE Control (RW) */
59#define CSR3_BCON 0x0001 /* Byte Control (RW) */
60
61/*
62 * Initialization Block Mode operation Bit Definitions.
63 */
64
65#define MODE_PROM 0x8000 /* Promiscuous Mode */
66#define MODE_INTL 0x0040 /* Internal Loopback */
67#define MODE_DRTY 0x0020 /* Disable Retry */
68#define MODE_COLL 0x0010 /* Force Collision */
69#define MODE_DTCR 0x0008 /* Disable Transmit CRC) */
70#define MODE_LOOP 0x0004 /* Loopback */
71#define MODE_DTX 0x0002 /* Disable the Transmitter */
72#define MODE_DRX 0x0001 /* Disable the Receiver */
73
74#define MODE_NORMAL 0x0000 /* Normal operation mode */
75
76/*
77 * Receive message descriptor status bit definitions.
78 */
79
80#define RX_OWN 0x80 /* Owner bit 0 = host, 1 = lance */
81#define RX_ERR 0x40 /* Error Summary */
82#define RX_FRAM 0x20 /* Framing Error */
83#define RX_OFLO 0x10 /* Overflow Error */
84#define RX_CRC 0x08 /* CRC Error */
85#define RX_BUFF 0x04 /* Buffer Error */
86#define RX_STP 0x02 /* Start of Packet */
87#define RX_ENP 0x01 /* End of Packet */
88
89
90/*
91 * Transmit message descriptor status bit definitions.
92 */
93
94#define TX_OWN 0x80 /* Owner bit 0 = host, 1 = lance */
95#define TX_ERR 0x40 /* Error Summary */
96#define TX_MORE 0x10 /* More the 1 retry needed to Xmit */
97#define TX_ONE 0x08 /* One retry needed to Xmit */
98#define TX_DEF 0x04 /* Deferred */
99#define TX_STP 0x02 /* Start of Packet */
100#define TX_ENP 0x01 /* End of Packet */
101
102/*
103 * Transmit status (2) (valid if TX_ERR == 1)
104 */
105
106#define TX_BUFF 0x8000 /* Buffering error (no ENP) */
107#define TX_UFLO 0x4000 /* Underflow (late memory) */
108#define TX_LCOL 0x1000 /* Late collision */
109#define TX_LCAR 0x0400 /* Loss of Carrier */
110#define TX_RTRY 0x0200 /* Failed after 16 retransmissions */
111#define TX_TDR 0x003f /* Time-domain-reflectometer-value */
112
113
114/*
115 * Structures used for Communication with the LANCE
116 */
117
118/* LANCE Initialize Block */
119
120struct init_block
121{
122 unsigned short mode; /* Mode Register */
123 unsigned char paddr[6]; /* Physical Address (MAC) */
124 unsigned char laddr[8]; /* Logical Filter Address (not used) */
125 unsigned int rdrp; /* Receive Descriptor Ring pointer */
126 unsigned int tdrp; /* Transmit Descriptor Ring pointer */
127};
128
129
130/* Receive Message Descriptor Entry */
131
132struct rmd
133{
134 union
135 {
136 unsigned long buffer; /* Address of buffer */
137 struct
138 {
139 unsigned char unused[3];
140 unsigned volatile char status; /* Status Bits */
141 } s;
142 } u;
143 volatile short blen; /* Buffer Length (two's complement) */
144 unsigned short mlen; /* Message Byte Count */
145};
146
147
148/* Transmit Message Descriptor Entry */
149
150struct tmd
151{
152 union
153 {
154 unsigned long buffer; /* Address of buffer */
155 struct
156 {
157 unsigned char unused[3];
158 unsigned volatile char status; /* Status Bits */
159 } s;
160 } u;
161 unsigned short blen; /* Buffer Length (two's complement) */
162 unsigned volatile short status2; /* Error Status Bits */
163};
164
165#endif /* End of SK_G16_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-23 17:25:22 -0500