1 static const char version[] =
2 "de600.c: $Revision: 1.1.1.1 $, Bjorn Ekwall (bj0rn@blox.se)\n";
6 * Linux driver for the D-Link DE-600 Ethernet pocket adapter.
8 * Portions (C) Copyright 1993, 1994 by Bjorn Ekwall
9 * The Author may be reached as bj0rn@blox.se
11 * Based on adapter information gathered from DE600.ASM by D-Link Inc.,
12 * as included on disk C in the v.2.11 of PC/TCP from FTP Software.
14 * Portions (C) Copyright 1990 D-Link, Inc.
15 * Copyright, 1988-1992, Russell Nelson, Crynwr Software
17 * Adapted to the sample network driver core for linux,
18 * written by: Donald Becker <becker@super.org>
19 * (Now at <becker@scyld.com>)
22 * "gcc -D__KERNEL__ -Wall -Wstrict-prototypes -O6 -fomit-frame-pointer \
25 **************************************************************/
27 * This program is free software; you can redistribute it and/or modify
28 * it under the terms of the GNU General Public License as published by
29 * the Free Software Foundation; either version 2, or (at your option)
32 * This program is distributed in the hope that it will be useful,
33 * but WITHOUT ANY WARRANTY; without even the implied warranty of
34 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
35 * GNU General Public License for more details.
37 * You should have received a copy of the GNU General Public License
38 * along with this program; if not, write to the Free Software
39 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
41 **************************************************************/
42 /* Add more time here if your adapter won't work OK: */
43 #define DE600_SLOW_DOWN udelay(delay_time)
46 * If you still have trouble reading/writing to the adapter,
47 * modify the following "#define": (see <asm/io.h> for more info)
48 #define REALLY_SLOW_IO
50 #define SLOW_IO_BY_JUMPING /* Looks "better" than dummy write to port 0x80 :-) */
53 * If you want to enable automatic continuous checking for the DE600,
54 * keep this #define enabled.
55 * It doesn't cost much per packet, so I think it is worth it!
56 * If you disagree, comment away the #define, and live with it...
59 #define CHECK_LOST_DE600
62 * Enable this #define if you want the adapter to do a "ifconfig down" on
63 * itself when we have detected that something is possibly wrong with it.
64 * The default behaviour is to retry with "adapter_init()" until success.
65 * This should be used for debugging purposes only.
66 * (Depends on the CHECK_LOST_DE600 above)
69 #define SHUTDOWN_WHEN_LOST
72 * See comment at "de600_rspace()"!
73 * This is an *ugly* hack, but for now it achieves its goal of
74 * faking a TCP flow-control that will not flood the poor DE600.
76 * Tricks TCP to announce a small max window (max 2 fast packets please :-)
78 * Comment away at your own risk!
80 * Update: Use the more general per-device maxwindow parameter instead.
84 /* use 0 for production, 1 for verification, >2 for debug */
86 #define PRINTK(x) if (de600_debug >= 2) printk x
89 #define PRINTK(x) /**/
92 #include <linux/module.h>
94 #include <linux/kernel.h>
95 #include <linux/sched.h>
96 #include <linux/types.h>
97 #include <linux/fcntl.h>
98 #include <linux/string.h>
99 #include <linux/interrupt.h>
100 #include <linux/ioport.h>
102 #include <linux/in.h>
103 #include <linux/ptrace.h>
104 #include <asm/system.h>
105 #include <linux/errno.h>
106 #include <linux/init.h>
107 #include <linux/delay.h>
109 #include <linux/inet.h>
110 #include <linux/netdevice.h>
111 #include <linux/etherdevice.h>
112 #include <linux/skbuff.h>
114 static unsigned int de600_debug = DE600_DEBUG;
115 MODULE_PARM(de600_debug, "i");
116 MODULE_PARM_DESC(de600_debug, "DE-600 debug level (0-2)");
118 static unsigned int delay_time = 10;
119 MODULE_PARM(delay_time, "i");
120 MODULE_PARM_DESC(delay_time, "DE-600 deley on I/O in microseconds");
122 #ifdef FAKE_SMALL_MAX
123 static unsigned long de600_rspace(struct sock *sk);
124 #include <net/sock.h>
127 typedef unsigned char byte;
129 /**************************************************
131 * Definition of D-Link Ethernet Pocket adapter *
133 **************************************************/
135 * D-Link Ethernet pocket adapter ports
138 * OK, so I'm cheating, but there are an awful lot of
139 * reads and writes in order to get anything in and out
140 * of the DE-600 with 4 bits at a time in the parallel port,
141 * so every saved instruction really helps :-)
143 * That is, I don't care what the device struct says
144 * but hope that Space.c will keep the rest of the drivers happy.
147 #define DE600_IO 0x378
150 #define DATA_PORT (DE600_IO)
151 #define STATUS_PORT (DE600_IO + 1)
152 #define COMMAND_PORT (DE600_IO + 2)
158 * It really should look like this, and autoprobing as well...
160 #define DATA_PORT (dev->base_addr + 0)
161 #define STATUS_PORT (dev->base_addr + 1)
162 #define COMMAND_PORT (dev->base_addr + 2)
163 #define DE600_IRQ dev->irq
167 * D-Link COMMAND_PORT commands
169 #define SELECT_NIC 0x04 /* select Network Interface Card */
170 #define SELECT_PRN 0x1c /* select Printer */
171 #define NML_PRN 0xec /* normal Printer situation */
172 #define IRQEN 0x10 /* enable IRQ line */
179 #define TX_FAILED16 0x10
183 * D-Link DATA_PORT commands
184 * command in low 4 bits
185 * data in high 4 bits
186 * select current data nibble with HI_NIBBLE bit
188 #define WRITE_DATA 0x00 /* write memory */
189 #define READ_DATA 0x01 /* read memory */
190 #define STATUS 0x02 /* read status register */
191 #define COMMAND 0x03 /* write command register (see COMMAND below) */
192 #define NULL_COMMAND 0x04 /* null command */
193 #define RX_LEN 0x05 /* read received packet length */
194 #define TX_ADDR 0x06 /* set adapter transmit memory address */
195 #define RW_ADDR 0x07 /* set adapter read/write memory address */
196 #define HI_NIBBLE 0x08 /* read/write the high nibble of data,
197 or-ed with rest of command */
200 * command register, accessed through DATA_PORT with low bits = COMMAND
202 #define RX_ALL 0x01 /* PROMISCUOUS */
203 #define RX_BP 0x02 /* default: BROADCAST & PHYSICAL ADDRESS */
204 #define RX_MBP 0x03 /* MULTICAST, BROADCAST & PHYSICAL ADDRESS */
206 #define TX_ENABLE 0x04 /* bit 2 */
207 #define RX_ENABLE 0x08 /* bit 3 */
209 #define RESET 0x80 /* set bit 7 high */
210 #define STOP_RESET 0x00 /* set bit 7 low */
213 * data to command register
214 * (high 4 bits in write to DATA_PORT)
216 #define RX_PAGE2_SELECT 0x10 /* bit 4, only 2 pages to select */
217 #define RX_BASE_PAGE 0x20 /* bit 5, always set when specifying RX_ADDR */
218 #define FLIP_IRQ 0x40 /* bit 6 */
221 * D-Link adapter internal memory:
223 * 0-2K 1:st transmit page (send from pointer up to 2K)
224 * 2-4K 2:nd transmit page (send from pointer up to 4K)
226 * 4-6K 1:st receive page (data from 4K upwards)
227 * 6-8K 2:nd receive page (data from 6K upwards)
229 * 8K+ Adapter ROM (contains magic code and last 3 bytes of Ethernet address)
231 #define MEM_2K 0x0800 /* 2048 */
232 #define MEM_4K 0x1000 /* 4096 */
233 #define MEM_6K 0x1800 /* 6144 */
234 #define NODE_ADDRESS 0x2000 /* 8192 */
236 #define RUNT 60 /* Too small Ethernet packet */
238 /**************************************************
240 * End of definition *
242 **************************************************/
245 * Index to functions, as function prototypes.
247 /* Routines used internally. (See "convenience macros") */
248 static byte de600_read_status(struct net_device *dev);
249 static byte de600_read_byte(unsigned char type, struct net_device *dev);
251 /* Put in the device structure. */
252 static int de600_open(struct net_device *dev);
253 static int de600_close(struct net_device *dev);
254 static struct net_device_stats *get_stats(struct net_device *dev);
255 static int de600_start_xmit(struct sk_buff *skb, struct net_device *dev);
257 /* Dispatch from interrupts. */
258 static void de600_interrupt(int irq, void *dev_id, struct pt_regs *regs);
259 static int de600_tx_intr(struct net_device *dev, int irq_status);
260 static void de600_rx_intr(struct net_device *dev);
263 static void trigger_interrupt(struct net_device *dev);
264 int de600_probe(struct net_device *dev);
265 static int adapter_init(struct net_device *dev);
268 * D-Link driver variables:
270 static volatile int rx_page;
273 static volatile int tx_fifo[TX_PAGES];
274 static volatile int tx_fifo_in;
275 static volatile int tx_fifo_out;
276 static volatile int free_tx_pages = TX_PAGES;
280 * Convenience macros/functions for D-Link adapter
283 #define select_prn() outb_p(SELECT_PRN, COMMAND_PORT); DE600_SLOW_DOWN
284 #define select_nic() outb_p(SELECT_NIC, COMMAND_PORT); DE600_SLOW_DOWN
286 /* Thanks for hints from Mark Burton <markb@ordern.demon.co.uk> */
287 #define de600_put_byte(data) ( \
288 outb_p(((data) << 4) | WRITE_DATA , DATA_PORT), \
289 outb_p(((data) & 0xf0) | WRITE_DATA | HI_NIBBLE, DATA_PORT))
292 * The first two outb_p()'s below could perhaps be deleted if there
293 * would be more delay in the last two. Not certain about it yet...
295 #define de600_put_command(cmd) ( \
296 outb_p(( rx_page << 4) | COMMAND , DATA_PORT), \
297 outb_p(( rx_page & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT), \
298 outb_p(((rx_page | cmd) << 4) | COMMAND , DATA_PORT), \
299 outb_p(((rx_page | cmd) & 0xf0) | COMMAND | HI_NIBBLE, DATA_PORT))
301 #define de600_setup_address(addr,type) ( \
302 outb_p((((addr) << 4) & 0xf0) | type , DATA_PORT), \
303 outb_p(( (addr) & 0xf0) | type | HI_NIBBLE, DATA_PORT), \
304 outb_p((((addr) >> 4) & 0xf0) | type , DATA_PORT), \
305 outb_p((((addr) >> 8) & 0xf0) | type | HI_NIBBLE, DATA_PORT))
307 #define rx_page_adr() ((rx_page & RX_PAGE2_SELECT)?(MEM_6K):(MEM_4K))
309 /* Flip bit, only 2 pages */
310 #define next_rx_page() (rx_page ^= RX_PAGE2_SELECT)
312 #define tx_page_adr(a) (((a) + 1) * MEM_2K)
315 de600_read_status(struct net_device *dev)
319 outb_p(STATUS, DATA_PORT);
320 status = inb(STATUS_PORT);
321 outb_p(NULL_COMMAND | HI_NIBBLE, DATA_PORT);
327 de600_read_byte(unsigned char type, struct net_device *dev) { /* dev used by macros */
330 (void)outb_p((type), DATA_PORT);
331 lo = ((unsigned char)inb(STATUS_PORT)) >> 4;
332 (void)outb_p((type) | HI_NIBBLE, DATA_PORT);
333 return ((unsigned char)inb(STATUS_PORT) & (unsigned char)0xf0) | lo;
337 * Open/initialize the board. This is called (in the current kernel)
338 * after booting when 'ifconfig <dev->name> $IP_ADDR' is run (in rc.inet1).
340 * This routine should set everything up anew at each open, even
341 * registers that "should" only need to be set once at boot, so that
342 * there is a non-reboot way to recover if something goes wrong.
345 de600_open(struct net_device *dev)
347 int ret = request_irq(DE600_IRQ, de600_interrupt, 0, dev->name, dev);
349 printk ("%s: unable to get IRQ %d\n", dev->name, DE600_IRQ);
353 if (adapter_init(dev))
360 * The inverse routine to de600_open().
363 de600_close(struct net_device *dev)
367 de600_put_command(RESET);
368 de600_put_command(STOP_RESET);
369 de600_put_command(0);
372 if (netif_running(dev)) { /* perhaps not needed? */
373 free_irq(DE600_IRQ, dev);
378 static struct net_device_stats *
379 get_stats(struct net_device *dev)
381 return (struct net_device_stats *)(dev->priv);
385 trigger_interrupt(struct net_device *dev)
387 de600_put_command(FLIP_IRQ);
391 de600_put_command(0);
395 * Copy a buffer to the adapter transmit page memory.
399 de600_start_xmit(struct sk_buff *skb, struct net_device *dev)
405 byte *buffer = skb->data;
408 if (free_tx_pages <= 0) { /* Do timeouts, to avoid hangs. */
409 tickssofar = jiffies - dev->trans_start;
415 printk("%s: transmit timed out (%d), %s?\n",
418 "network cable problem"
420 /* Restart the adapter. */
421 if (adapter_init(dev)) {
426 /* Start real output */
427 PRINTK(("de600_start_xmit:len=%d, page %d/%d\n", skb->len, tx_fifo_in, free_tx_pages));
429 if ((len = skb->len) < RUNT)
435 tx_fifo[tx_fifo_in] = transmit_from = tx_page_adr(tx_fifo_in) - len;
436 tx_fifo_in = (tx_fifo_in + 1) % TX_PAGES; /* Next free tx page */
438 #ifdef CHECK_LOST_DE600
439 /* This costs about 40 instructions per packet... */
440 de600_setup_address(NODE_ADDRESS, RW_ADDR);
441 de600_read_byte(READ_DATA, dev);
442 if (was_down || (de600_read_byte(READ_DATA, dev) != 0xde)) {
443 if (adapter_init(dev)) {
444 restore_flags(flags);
450 de600_setup_address(transmit_from, RW_ADDR);
451 for (i = 0; i < skb->len ; ++i, ++buffer)
452 de600_put_byte(*buffer);
456 if (free_tx_pages-- == TX_PAGES) { /* No transmission going on */
457 dev->trans_start = jiffies;
458 netif_start_queue(dev); /* allow more packets into adapter */
459 /* Send page and generate a faked interrupt */
460 de600_setup_address(transmit_from, TX_ADDR);
461 de600_put_command(TX_ENABLE);
465 netif_start_queue(dev);
467 netif_stop_queue(dev);
471 restore_flags(flags);
473 #ifdef FAKE_SMALL_MAX
474 /* This will "patch" the socket TCP proto at an early moment */
475 if (skb->sk && (skb->sk->protocol == IPPROTO_TCP) &&
476 (skb->sk->prot->rspace != &de600_rspace))
477 skb->sk->prot->rspace = de600_rspace; /* Ugh! */
486 * The typical workload of the driver:
487 * Handle the network interface interrupts.
490 de600_interrupt(int irq, void *dev_id, struct pt_regs * regs)
492 struct net_device *dev = dev_id;
497 /* This might just as well be deleted now, no crummy drivers present :-) */
498 if ((dev == NULL) || (DE600_IRQ != irq)) {
499 printk("%s: bogus interrupt %d\n", dev?dev->name:"DE-600", irq);
504 irq_status = de600_read_status(dev);
507 PRINTK(("de600_interrupt (%02X)\n", irq_status));
509 if (irq_status & RX_GOOD)
511 else if (!(irq_status & RX_BUSY))
512 de600_put_command(RX_ENABLE);
514 /* Any transmission in progress? */
515 if (free_tx_pages < TX_PAGES)
516 retrig = de600_tx_intr(dev, irq_status);
520 irq_status = de600_read_status(dev);
521 } while ( (irq_status & RX_GOOD) || ((++boguscount < 100) && retrig) );
523 * Yeah, it _looks_ like busy waiting, smells like busy waiting
524 * and I know it's not PC, but please, it will only occur once
525 * in a while and then only for a loop or so (< 1ms for sure!)
528 /* Enable adapter interrupts */
532 trigger_interrupt(dev);
538 de600_tx_intr(struct net_device *dev, int irq_status)
541 * Returns 1 if tx still not done
544 /* Check if current transmission is done yet */
545 if (irq_status & TX_BUSY)
546 return 1; /* tx not done, try again */
549 /* If last transmission OK then bump fifo index */
550 if (!(irq_status & TX_FAILED16)) {
551 tx_fifo_out = (tx_fifo_out + 1) % TX_PAGES;
553 ((struct net_device_stats *)(dev->priv))->tx_packets++;
554 netif_wake_queue(dev);
557 /* More to send, or resend last packet? */
558 if ((free_tx_pages < TX_PAGES) || (irq_status & TX_FAILED16)) {
559 dev->trans_start = jiffies;
560 de600_setup_address(tx_fifo[tx_fifo_out], TX_ADDR);
561 de600_put_command(TX_ENABLE);
570 * We have a good packet, get it out of the adapter.
573 de600_rx_intr(struct net_device *dev)
580 register unsigned char *buffer;
585 /* Get size of received packet */
586 size = de600_read_byte(RX_LEN, dev); /* low byte */
587 size += (de600_read_byte(RX_LEN, dev) << 8); /* high byte */
588 size -= 4; /* Ignore trailing 4 CRC-bytes */
590 /* Tell adapter where to store next incoming packet, enable receiver */
591 read_from = rx_page_adr();
593 de600_put_command(RX_ENABLE);
595 restore_flags(flags);
597 if ((size < 32) || (size > 1535)) {
598 printk("%s: Bogus packet size %d.\n", dev->name, size);
604 skb = dev_alloc_skb(size+2);
606 printk("%s: Couldn't allocate a sk_buff of size %d.\n",
613 skb_reserve(skb,2); /* Align */
615 /* 'skb->data' points to the start of sk_buff data area. */
616 buffer = skb_put(skb,size);
618 /* copy the packet into the buffer */
619 de600_setup_address(read_from, RW_ADDR);
620 for (i = size; i > 0; --i, ++buffer)
621 *buffer = de600_read_byte(READ_DATA, dev);
623 skb->protocol=eth_type_trans(skb,dev);
628 dev->last_rx = jiffies;
629 ((struct net_device_stats *)(dev->priv))->rx_packets++; /* count all receives */
630 ((struct net_device_stats *)(dev->priv))->rx_bytes += size; /* count all received bytes */
633 * If any worth-while packets have been received, netif_rx()
634 * has done a mark_bh(INET_BH) for us and will work on them
635 * when we get to the bottom-half routine.
640 de600_probe(struct net_device *dev)
643 static struct net_device_stats de600_netstats;
644 /*dev->priv = kmalloc(sizeof(struct net_device_stats), GFP_KERNEL);*/
646 SET_MODULE_OWNER(dev);
648 printk("%s: D-Link DE-600 pocket adapter", dev->name);
649 /* Alpha testers must have the version number to report bugs. */
653 /* probe for adapter */
656 (void)de600_read_status(dev);
657 de600_put_command(RESET);
658 de600_put_command(STOP_RESET);
659 if (de600_read_status(dev) & 0xf0) {
660 printk(": not at I/O %#3x.\n", DATA_PORT);
665 * Maybe we found one,
666 * have to check if it is a D-Link DE-600 adapter...
669 /* Get the adapter ethernet address from the ROM */
670 de600_setup_address(NODE_ADDRESS, RW_ADDR);
671 for (i = 0; i < ETH_ALEN; i++) {
672 dev->dev_addr[i] = de600_read_byte(READ_DATA, dev);
673 dev->broadcast[i] = 0xff;
676 /* Check magic code */
677 if ((dev->dev_addr[1] == 0xde) && (dev->dev_addr[2] == 0x15)) {
678 /* OK, install real address */
679 dev->dev_addr[0] = 0x00;
680 dev->dev_addr[1] = 0x80;
681 dev->dev_addr[2] = 0xc8;
682 dev->dev_addr[3] &= 0x0f;
683 dev->dev_addr[3] |= 0x70;
685 printk(" not identified in the printer port\n");
690 if (check_region(DE600_IO, 3)) {
691 printk(", port 0x%x busy\n", DE600_IO);
695 request_region(DE600_IO, 3, "de600");
697 printk(", Ethernet Address: %02X", dev->dev_addr[0]);
698 for (i = 1; i < ETH_ALEN; i++)
699 printk(":%02X",dev->dev_addr[i]);
702 /* Initialize the device structure. */
703 dev->priv = &de600_netstats;
705 memset(dev->priv, 0, sizeof(struct net_device_stats));
706 dev->get_stats = get_stats;
708 dev->open = de600_open;
709 dev->stop = de600_close;
710 dev->hard_start_xmit = &de600_start_xmit;
714 dev->flags&=~IFF_MULTICAST;
721 adapter_init(struct net_device *dev)
730 rx_page = 0; /* used by RESET */
731 de600_put_command(RESET);
732 de600_put_command(STOP_RESET);
733 #ifdef CHECK_LOST_DE600
734 /* Check if it is still there... */
735 /* Get the some bytes of the adapter ethernet address from the ROM */
736 de600_setup_address(NODE_ADDRESS, RW_ADDR);
737 de600_read_byte(READ_DATA, dev);
738 if ((de600_read_byte(READ_DATA, dev) != 0xde) ||
739 (de600_read_byte(READ_DATA, dev) != 0x15)) {
740 /* was: if (de600_read_status(dev) & 0xf0) { */
741 printk("Something has happened to the DE-600! Please check it"
742 #ifdef SHUTDOWN_WHEN_LOST
743 " and do a new ifconfig"
744 #endif /* SHUTDOWN_WHEN_LOST */
746 #ifdef SHUTDOWN_WHEN_LOST
747 /* Goodbye, cruel world... */
748 dev->flags &= ~IFF_UP;
750 #endif /* SHUTDOWN_WHEN_LOST */
752 netif_stop_queue(dev); /* Transmit busy... */
753 restore_flags(flags);
754 return 1; /* failed */
756 #endif /* CHECK_LOST_DE600 */
758 printk("Thanks, I feel much better now!\n");
762 netif_start_queue(dev);
765 free_tx_pages = TX_PAGES;
767 /* set the ether address. */
768 de600_setup_address(NODE_ADDRESS, RW_ADDR);
769 for (i = 0; i < ETH_ALEN; i++)
770 de600_put_byte(dev->dev_addr[i]);
772 /* where to start saving incoming packets */
773 rx_page = RX_BP | RX_BASE_PAGE;
774 de600_setup_address(MEM_4K, RW_ADDR);
775 /* Enable receiver */
776 de600_put_command(RX_ENABLE);
778 restore_flags(flags);
783 #ifdef FAKE_SMALL_MAX
785 * The new router code (coming soon 8-) ) will fix this properly.
787 #define DE600_MIN_WINDOW 1024
788 #define DE600_MAX_WINDOW 2048
789 #define DE600_TCP_WINDOW_DIFF 1024
791 * Copied from "net/inet/sock.c"
793 * Sets a lower max receive window in order to achieve <= 2
794 * packets arriving at the adapter in fast succession.
795 * (No way that a DE-600 can keep up with a net saturated
796 * with packets homing in on it :-( )
798 * Since there are only 2 receive buffers in the DE-600
799 * and it takes some time to copy from the adapter,
800 * this is absolutely necessary for any TCP performance whatsoever!
802 * Note that the returned window info will never be smaller than
803 * DE600_MIN_WINDOW, i.e. 1024
804 * This differs from the standard function, that can return an
805 * arbitrarily small window!
808 de600_rspace(struct sock *sk)
814 * Hack! You might want to play with commenting away the following line,
815 * if you know what you do!
816 sk->max_unacked = DE600_MAX_WINDOW - DE600_TCP_WINDOW_DIFF;
819 if (atomic_read(&sk->rmem_alloc) >= sk->rcvbuf-2*DE600_MIN_WINDOW) return(0);
820 amt = min_t(int, (sk->rcvbuf-atomic_read(&sk->rmem_alloc))/2/*-DE600_MIN_WINDOW*/, DE600_MAX_WINDOW);
821 if (amt < 0) return(0);
829 static struct net_device de600_dev;
834 de600_dev.init = de600_probe;
835 if (register_netdev(&de600_dev) != 0)
843 unregister_netdev(&de600_dev);
844 release_region(DE600_IO, 3);
848 MODULE_LICENSE("GPL");
852 * kernel-compile-command: "gcc -D__KERNEL__ -Ilinux/include -I../../net/inet -Wall -Wstrict-prototypes -O2 -m486 -c de600.c"
853 * module-compile-command: "gcc -D__KERNEL__ -DMODULE -Ilinux/include -I../../net/inet -Wall -Wstrict-prototypes -O2 -m486 -c de600.c"
854 * compile-command: "gcc -D__KERNEL__ -DMODULE -Ilinux/include -I../../net/inet -Wall -Wstrict-prototypes -O2 -m486 -c de600.c"