1 /* ni5010.c: A network driver for the MiCom-Interlan NI5010 ethercard.
3 * Copyright 1996,1997,2006 Jan-Pascal van Best and Andreas Mohr.
5 * This software may be used and distributed according to the terms
6 * of the GNU General Public License, incorporated herein by reference.
8 * The authors may be reached as:
9 * janpascal@vanbest.org andi@lisas.de
12 * Donald Becker's "skeleton.c"
13 * Crynwr ni5010 packet driver
16 * v0.0: First test version
17 * v0.1: First working version
19 * v0.3->v0.90: Now demand setting io and irq when loading as module
20 * 970430 v0.91: modified for Linux 2.1.14
21 * v0.92: Implemented Andreas' (better) NI5010 probe
22 * 970503 v0.93: Fixed auto-irq failure on warm reboot (JB)
23 * 970623 v1.00: First kernel version (AM)
24 * 970814 v1.01: Added detection of onboard receive buffer size (AM)
25 * 060611 v1.02: slight cleanup: email addresses, driver modernization.
27 * - not SMP-safe (no locking of I/O accesses)
28 * - Note that you have to patch ifconfig for the new /proc/net/dev
29 * format. It gives incorrect stats otherwise.
33 * Move some stuff to chipset_init()
34 * Handle xmt errors other than collisions
35 * Complete merge with Andreas' driver
36 * Implement ring buffers (Is this useful? You can't squeeze
37 * too many packet in a 2k buffer!)
38 * Implement DMA (Again, is this useful? Some docs say DMA is
39 * slower than programmed I/O)
42 * gcc -O2 -fomit-frame-pointer -m486 -D__KERNEL__ \
43 * -DMODULE -c ni5010.c
46 * insmod ni5010.ko io=0x300 irq=5
49 #include <linux/module.h>
50 #include <linux/kernel.h>
51 #include <linux/string.h>
52 #include <linux/errno.h>
53 #include <linux/ioport.h>
54 #include <linux/slab.h>
55 #include <linux/interrupt.h>
56 #include <linux/delay.h>
57 #include <linux/init.h>
58 #include <linux/bitops.h>
62 #include <linux/netdevice.h>
63 #include <linux/etherdevice.h>
64 #include <linux/skbuff.h>
68 static const char boardname
[] = "NI5010";
69 static char version
[] __initdata
=
70 "ni5010.c: v1.02 20060611 Jan-Pascal van Best and Andreas Mohr\n";
72 /* bufsize_rcv == 0 means autoprobing */
73 static unsigned int bufsize_rcv
;
75 #define JUMPERED_INTERRUPTS /* IRQ line jumpered on board */
76 #undef JUMPERED_DMA /* No DMA used */
77 #undef FULL_IODETECT /* Only detect in portlist */
80 /* A zero-terminated list of I/O addresses to be probed. */
81 static unsigned int ports
[] __initdata
=
82 { 0x300, 0x320, 0x340, 0x360, 0x380, 0x3a0, 0 };
85 /* Use 0 for production, 1 for verification, >2 for debug */
87 #define NI5010_DEBUG 0
90 /* Information that needs to be kept for each board. */
96 /* Index to functions, as function prototypes. */
98 static int ni5010_probe1(struct net_device
*dev
, int ioaddr
);
99 static int ni5010_open(struct net_device
*dev
);
100 static int ni5010_send_packet(struct sk_buff
*skb
, struct net_device
*dev
);
101 static irqreturn_t
ni5010_interrupt(int irq
, void *dev_id
);
102 static void ni5010_rx(struct net_device
*dev
);
103 static void ni5010_timeout(struct net_device
*dev
);
104 static int ni5010_close(struct net_device
*dev
);
105 static void ni5010_set_multicast_list(struct net_device
*dev
);
106 static void reset_receiver(struct net_device
*dev
);
108 static int process_xmt_interrupt(struct net_device
*dev
);
109 #define tx_done(dev) 1
110 static void hardware_send_packet(struct net_device
*dev
, char *buf
, int length
, int pad
);
111 static void chipset_init(struct net_device
*dev
, int startp
);
112 static void dump_packet(void *buf
, int len
);
113 static void ni5010_show_registers(struct net_device
*dev
);
118 struct net_device
* __init
ni5010_probe(int unit
)
120 struct net_device
*dev
= alloc_etherdev(sizeof(struct ni5010_local
));
125 return ERR_PTR(-ENOMEM
);
128 sprintf(dev
->name
, "eth%d", unit
);
129 netdev_boot_setup_check(dev
);
134 PRINTK2((KERN_DEBUG
"%s: Entering ni5010_probe\n", dev
->name
));
136 if (io
> 0x1ff) { /* Check a single specified location. */
137 err
= ni5010_probe1(dev
, io
);
138 } else if (io
!= 0) { /* Don't probe at all. */
142 for (io
=0x200; io
<0x400 && ni5010_probe1(dev
, io
) ; io
+=0x20)
148 for (port
= ports
; *port
&& ni5010_probe1(dev
, *port
); port
++)
152 #endif /* FULL_IODETECT */
156 err
= register_netdev(dev
);
161 release_region(dev
->base_addr
, NI5010_IO_EXTENT
);
167 static inline int rd_port(int ioaddr
)
170 return inb(IE_SAPROM
);
173 static void __init
trigger_irq(int ioaddr
)
175 outb(0x00, EDLC_RESET
); /* Clear EDLC hold RESET state */
176 outb(0x00, IE_RESET
); /* Board reset */
177 outb(0x00, EDLC_XMASK
); /* Disable all Xmt interrupts */
178 outb(0x00, EDLC_RMASK
); /* Disable all Rcv interrupt */
179 outb(0xff, EDLC_XCLR
); /* Clear all pending Xmt interrupts */
180 outb(0xff, EDLC_RCLR
); /* Clear all pending Rcv interrupts */
182 * Transmit packet mode: Ignore parity, Power xcvr,
185 outb(XMD_IG_PAR
| XMD_T_MODE
| XMD_LBC
, EDLC_XMODE
);
186 outb(RMD_BROADCAST
, EDLC_RMODE
); /* Receive normal&broadcast */
187 outb(XM_ALL
, EDLC_XMASK
); /* Enable all Xmt interrupts */
188 udelay(50); /* FIXME: Necessary? */
189 outb(MM_EN_XMT
|MM_MUX
, IE_MMODE
); /* Start transmission */
193 * This is the real probe routine. Linux has a history of friendly device
194 * probes on the ISA bus. A good device probes avoids doing writes, and
195 * verifies that the correct device exists and functions.
198 static int __init
ni5010_probe1(struct net_device
*dev
, int ioaddr
)
200 static unsigned version_printed
;
201 struct ni5010_local
*lp
;
203 unsigned int data
= 0;
207 dev
->base_addr
= ioaddr
;
210 if (!request_region(ioaddr
, NI5010_IO_EXTENT
, boardname
))
214 * This is no "official" probe method, I've rather tested which
215 * probe works best with my seven NI5010 cards
216 * (they have very different serial numbers)
217 * Suggestions or failure reports are very, very welcome !
218 * But I think it is a relatively good probe method
219 * since it doesn't use any "outb"
220 * It should be nearly 100% reliable !
221 * well-known WARNING: this probe method (like many others)
222 * will hang the system if a NE2000 card region is probed !
227 PRINTK2((KERN_DEBUG
"%s: entering ni5010_probe1(%#3x)\n",
230 if (inb(ioaddr
+0) == 0xff)
233 while ( (rd_port(ioaddr
) & rd_port(ioaddr
) & rd_port(ioaddr
) &
234 rd_port(ioaddr
) & rd_port(ioaddr
) & rd_port(ioaddr
)) != 0xff)
236 if (boguscount
-- == 0)
240 PRINTK2((KERN_DEBUG
"%s: I/O #1 passed!\n", dev
->name
));
243 if ( (data
= rd_port(ioaddr
)) != 0xff) break;
247 PRINTK2((KERN_DEBUG
"%s: I/O #2 passed!\n", dev
->name
));
249 if ((data
!= SA_ADDR0
) || (rd_port(ioaddr
) != SA_ADDR1
) ||
250 (rd_port(ioaddr
) != SA_ADDR2
))
256 if ( (rd_port(ioaddr
) != NI5010_MAGICVAL1
) ||
257 (rd_port(ioaddr
) != NI5010_MAGICVAL2
) )
260 PRINTK2((KERN_DEBUG
"%s: I/O #3 passed!\n", dev
->name
));
262 if (NI5010_DEBUG
&& version_printed
++ == 0)
263 printk(KERN_INFO
"%s", version
);
265 printk("NI5010 ethercard probe at 0x%x: ", ioaddr
);
267 dev
->base_addr
= ioaddr
;
269 for (i
=0; i
<6; i
++) {
271 printk("%2.2x ", dev
->dev_addr
[i
] = inb(IE_SAPROM
));
274 PRINTK2((KERN_DEBUG
"%s: I/O #4 passed!\n", dev
->name
));
276 #ifdef JUMPERED_INTERRUPTS
277 if (dev
->irq
== 0xff)
279 else if (dev
->irq
< 2) {
280 unsigned long irq_mask
;
282 PRINTK2((KERN_DEBUG
"%s: I/O #5 passed!\n", dev
->name
));
284 irq_mask
= probe_irq_on();
287 dev
->irq
= probe_irq_off(irq_mask
);
289 PRINTK2((KERN_DEBUG
"%s: I/O #6 passed!\n", dev
->name
));
293 printk(KERN_WARNING
"%s: no IRQ found!\n", dev
->name
);
296 PRINTK2((KERN_DEBUG
"%s: I/O #7 passed!\n", dev
->name
));
297 } else if (dev
->irq
== 2) {
300 #endif /* JUMPERED_INTERRUPTS */
301 PRINTK2((KERN_DEBUG
"%s: I/O #9 passed!\n", dev
->name
));
303 /* DMA is not supported (yet?), so no use detecting it */
304 lp
= netdev_priv(dev
);
306 spin_lock_init(&lp
->lock
);
308 PRINTK2((KERN_DEBUG
"%s: I/O #10 passed!\n", dev
->name
));
310 /* get the size of the onboard receive buffer
311 * higher addresses than bufsize are wrapped into real buffer
312 * i.e. data for offs. 0x801 is written to 0x1 with a 2K onboard buffer
315 outb(1, IE_MMODE
); /* Put Rcv buffer on system bus */
316 outw(0, IE_GP
); /* Point GP at start of packet */
317 outb(0, IE_RBUF
); /* set buffer byte 0 to 0 */
318 for (i
= 1; i
< 0xff; i
++) {
319 outw(i
<< 8, IE_GP
); /* Point GP at packet size to be tested */
321 outw(0x0, IE_GP
); /* Point GP at start of packet */
323 if (data
== i
) break;
325 bufsize_rcv
= i
<< 8;
326 outw(0, IE_GP
); /* Point GP at start of packet */
327 outb(0, IE_RBUF
); /* set buffer byte 0 to 0 again */
329 printk("-> bufsize rcv/xmt=%d/%d\n", bufsize_rcv
, NI5010_BUFSIZE
);
330 memset(dev
->priv
, 0, sizeof(struct ni5010_local
));
332 dev
->open
= ni5010_open
;
333 dev
->stop
= ni5010_close
;
334 dev
->hard_start_xmit
= ni5010_send_packet
;
335 dev
->set_multicast_list
= ni5010_set_multicast_list
;
336 dev
->tx_timeout
= ni5010_timeout
;
337 dev
->watchdog_timeo
= HZ
/20;
339 dev
->flags
&= ~IFF_MULTICAST
; /* Multicast doesn't work */
341 /* Shut up the ni5010 */
342 outb(0, EDLC_RMASK
); /* Mask all receive interrupts */
343 outb(0, EDLC_XMASK
); /* Mask all xmit interrupts */
344 outb(0xff, EDLC_RCLR
); /* Kill all pending rcv interrupts */
345 outb(0xff, EDLC_XCLR
); /* Kill all pending xmt interrupts */
347 printk(KERN_INFO
"%s: NI5010 found at 0x%x, using IRQ %d", dev
->name
, ioaddr
, dev
->irq
);
349 printk(" & DMA %d", dev
->dma
);
353 release_region(dev
->base_addr
, NI5010_IO_EXTENT
);
358 * Open/initialize the board. This is called (in the current kernel)
359 * sometime after booting when the 'ifconfig' program is run.
361 * This routine should set everything up anew at each open, even
362 * registers that "should" only need to be set once at boot, so that
363 * there is a non-reboot way to recover if something goes wrong.
366 static int ni5010_open(struct net_device
*dev
)
368 int ioaddr
= dev
->base_addr
;
371 PRINTK2((KERN_DEBUG
"%s: entering ni5010_open()\n", dev
->name
));
373 if (request_irq(dev
->irq
, &ni5010_interrupt
, 0, boardname
, dev
)) {
374 printk(KERN_WARNING
"%s: Cannot get irq %#2x\n", dev
->name
, dev
->irq
);
377 PRINTK3((KERN_DEBUG
"%s: passed open() #1\n", dev
->name
));
379 * Always allocate the DMA channel after the IRQ,
380 * and clean up on failure.
383 if (request_dma(dev
->dma
, cardname
)) {
384 printk(KERN_WARNING
"%s: Cannot get dma %#2x\n", dev
->name
, dev
->dma
);
385 free_irq(dev
->irq
, NULL
);
388 #endif /* JUMPERED_DMA */
390 PRINTK3((KERN_DEBUG
"%s: passed open() #2\n", dev
->name
));
391 /* Reset the hardware here. Don't forget to set the station address. */
393 outb(RS_RESET
, EDLC_RESET
); /* Hold up EDLC_RESET while configing board */
394 outb(0, IE_RESET
); /* Hardware reset of ni5010 board */
395 outb(XMD_LBC
, EDLC_XMODE
); /* Only loopback xmits */
397 PRINTK3((KERN_DEBUG
"%s: passed open() #3\n", dev
->name
));
398 /* Set the station address */
399 for(i
= 0;i
< 6; i
++) {
400 outb(dev
->dev_addr
[i
], EDLC_ADDR
+ i
);
403 PRINTK3((KERN_DEBUG
"%s: Initialising ni5010\n", dev
->name
));
404 outb(0, EDLC_XMASK
); /* No xmit interrupts for now */
405 outb(XMD_IG_PAR
| XMD_T_MODE
| XMD_LBC
, EDLC_XMODE
);
406 /* Normal packet xmit mode */
407 outb(0xff, EDLC_XCLR
); /* Clear all pending xmit interrupts */
408 outb(RMD_BROADCAST
, EDLC_RMODE
);
409 /* Receive broadcast and normal packets */
410 reset_receiver(dev
); /* Ready ni5010 for receiving packets */
412 outb(0, EDLC_RESET
); /* Un-reset the ni5010 */
414 netif_start_queue(dev
);
416 if (NI5010_DEBUG
) ni5010_show_registers(dev
);
418 PRINTK((KERN_DEBUG
"%s: open successful\n", dev
->name
));
422 static void reset_receiver(struct net_device
*dev
)
424 int ioaddr
= dev
->base_addr
;
426 PRINTK3((KERN_DEBUG
"%s: resetting receiver\n", dev
->name
));
427 outw(0, IE_GP
); /* Receive packet at start of buffer */
428 outb(0xff, EDLC_RCLR
); /* Clear all pending rcv interrupts */
429 outb(0, IE_MMODE
); /* Put EDLC to rcv buffer */
430 outb(MM_EN_RCV
, IE_MMODE
); /* Enable rcv */
431 outb(0xff, EDLC_RMASK
); /* Enable all rcv interrupts */
434 static void ni5010_timeout(struct net_device
*dev
)
436 printk(KERN_WARNING
"%s: transmit timed out, %s?\n", dev
->name
,
437 tx_done(dev
) ? "IRQ conflict" : "network cable problem");
438 /* Try to restart the adaptor. */
439 /* FIXME: Give it a real kick here */
440 chipset_init(dev
, 1);
441 dev
->trans_start
= jiffies
;
442 netif_wake_queue(dev
);
445 static int ni5010_send_packet(struct sk_buff
*skb
, struct net_device
*dev
)
447 int length
= ETH_ZLEN
< skb
->len
? skb
->len
: ETH_ZLEN
;
449 PRINTK2((KERN_DEBUG
"%s: entering ni5010_send_packet\n", dev
->name
));
455 netif_stop_queue(dev
);
456 hardware_send_packet(dev
, (unsigned char *)skb
->data
, skb
->len
, length
-skb
->len
);
457 dev
->trans_start
= jiffies
;
463 * The typical workload of the driver:
464 * Handle the network interface interrupts.
466 static irqreturn_t
ni5010_interrupt(int irq
, void *dev_id
)
468 struct net_device
*dev
= dev_id
;
469 struct ni5010_local
*lp
;
471 int xmit_was_error
= 0;
473 PRINTK2((KERN_DEBUG
"%s: entering ni5010_interrupt\n", dev
->name
));
475 ioaddr
= dev
->base_addr
;
476 lp
= netdev_priv(dev
);
478 spin_lock(&lp
->lock
);
479 status
= inb(IE_ISTAT
);
480 PRINTK3((KERN_DEBUG
"%s: IE_ISTAT = %#02x\n", dev
->name
, status
));
482 if ((status
& IS_R_INT
) == 0) ni5010_rx(dev
);
484 if ((status
& IS_X_INT
) == 0) {
485 xmit_was_error
= process_xmt_interrupt(dev
);
488 if ((status
& IS_DMA_INT
) == 0) {
489 PRINTK((KERN_DEBUG
"%s: DMA complete (?)\n", dev
->name
));
490 outb(0, IE_DMA_RST
); /* Reset DMA int */
495 spin_unlock(&lp
->lock
);
500 static void dump_packet(void *buf
, int len
)
504 printk(KERN_DEBUG
"Packet length = %#4x\n", len
);
505 for (i
= 0; i
< len
; i
++){
506 if (i
% 16 == 0) printk(KERN_DEBUG
"%#4.4x", i
);
507 if (i
% 2 == 0) printk(" ");
508 printk("%2.2x", ((unsigned char *)buf
)[i
]);
509 if (i
% 16 == 15) printk("\n");
516 /* We have a good packet, get it out of the buffer. */
517 static void ni5010_rx(struct net_device
*dev
)
519 struct ni5010_local
*lp
= netdev_priv(dev
);
520 int ioaddr
= dev
->base_addr
;
521 unsigned char rcv_stat
;
525 PRINTK2((KERN_DEBUG
"%s: entering ni5010_rx()\n", dev
->name
));
527 rcv_stat
= inb(EDLC_RSTAT
);
528 PRINTK3((KERN_DEBUG
"%s: EDLC_RSTAT = %#2x\n", dev
->name
, rcv_stat
));
530 if ( (rcv_stat
& RS_VALID_BITS
) != RS_PKT_OK
) {
531 PRINTK((KERN_INFO
"%s: receive error.\n", dev
->name
));
532 dev
->stats
.rx_errors
++;
533 if (rcv_stat
& RS_RUNT
) dev
->stats
.rx_length_errors
++;
534 if (rcv_stat
& RS_ALIGN
) dev
->stats
.rx_frame_errors
++;
535 if (rcv_stat
& RS_CRC_ERR
) dev
->stats
.rx_crc_errors
++;
536 if (rcv_stat
& RS_OFLW
) dev
->stats
.rx_fifo_errors
++;
537 outb(0xff, EDLC_RCLR
); /* Clear the interrupt */
541 outb(0xff, EDLC_RCLR
); /* Clear the interrupt */
543 i_pkt_size
= inw(IE_RCNT
);
544 if (i_pkt_size
> ETH_FRAME_LEN
|| i_pkt_size
< 10 ) {
545 PRINTK((KERN_DEBUG
"%s: Packet size error, packet size = %#4.4x\n",
546 dev
->name
, i_pkt_size
));
547 dev
->stats
.rx_errors
++;
548 dev
->stats
.rx_length_errors
++;
552 /* Malloc up new buffer. */
553 skb
= dev_alloc_skb(i_pkt_size
+ 3);
555 printk(KERN_WARNING
"%s: Memory squeeze, dropping packet.\n", dev
->name
);
556 dev
->stats
.rx_dropped
++;
562 /* Read packet into buffer */
563 outb(MM_MUX
, IE_MMODE
); /* Rcv buffer to system bus */
564 outw(0, IE_GP
); /* Seek to beginning of packet */
565 insb(IE_RBUF
, skb_put(skb
, i_pkt_size
), i_pkt_size
);
567 if (NI5010_DEBUG
>= 4)
568 dump_packet(skb
->data
, skb
->len
);
570 skb
->protocol
= eth_type_trans(skb
,dev
);
572 dev
->last_rx
= jiffies
;
573 dev
->stats
.rx_packets
++;
574 dev
->stats
.rx_bytes
+= i_pkt_size
;
576 PRINTK2((KERN_DEBUG
"%s: Received packet, size=%#4.4x\n",
577 dev
->name
, i_pkt_size
));
581 static int process_xmt_interrupt(struct net_device
*dev
)
583 struct ni5010_local
*lp
= netdev_priv(dev
);
584 int ioaddr
= dev
->base_addr
;
587 PRINTK2((KERN_DEBUG
"%s: entering process_xmt_interrupt\n", dev
->name
));
589 xmit_stat
= inb(EDLC_XSTAT
);
590 PRINTK3((KERN_DEBUG
"%s: EDLC_XSTAT = %2.2x\n", dev
->name
, xmit_stat
));
592 outb(0, EDLC_XMASK
); /* Disable xmit IRQ's */
593 outb(0xff, EDLC_XCLR
); /* Clear all pending xmit IRQ's */
595 if (xmit_stat
& XS_COLL
){
596 PRINTK((KERN_DEBUG
"%s: collision detected, retransmitting\n",
598 outw(NI5010_BUFSIZE
- lp
->o_pkt_size
, IE_GP
);
599 /* outb(0, IE_MMODE); */ /* xmt buf on sysbus FIXME: needed ? */
600 outb(MM_EN_XMT
| MM_MUX
, IE_MMODE
);
601 outb(XM_ALL
, EDLC_XMASK
); /* Enable xmt IRQ's */
602 dev
->stats
.collisions
++;
606 /* FIXME: handle other xmt error conditions */
608 dev
->stats
.tx_packets
++;
609 dev
->stats
.tx_bytes
+= lp
->o_pkt_size
;
610 netif_wake_queue(dev
);
612 PRINTK2((KERN_DEBUG
"%s: sent packet, size=%#4.4x\n",
613 dev
->name
, lp
->o_pkt_size
));
618 /* The inverse routine to ni5010_open(). */
619 static int ni5010_close(struct net_device
*dev
)
621 int ioaddr
= dev
->base_addr
;
623 PRINTK2((KERN_DEBUG
"%s: entering ni5010_close\n", dev
->name
));
624 #ifdef JUMPERED_INTERRUPTS
625 free_irq(dev
->irq
, NULL
);
627 /* Put card in held-RESET state */
629 outb(RS_RESET
, EDLC_RESET
);
631 netif_stop_queue(dev
);
633 PRINTK((KERN_DEBUG
"%s: %s closed down\n", dev
->name
, boardname
));
638 /* Set or clear the multicast filter for this adaptor.
639 num_addrs == -1 Promiscuous mode, receive all packets
640 num_addrs == 0 Normal mode, clear multicast list
641 num_addrs > 0 Multicast mode, receive normal and MC packets, and do
642 best-effort filtering.
644 static void ni5010_set_multicast_list(struct net_device
*dev
)
646 short ioaddr
= dev
->base_addr
;
648 PRINTK2((KERN_DEBUG
"%s: entering set_multicast_list\n", dev
->name
));
650 if (dev
->flags
&IFF_PROMISC
|| dev
->flags
&IFF_ALLMULTI
|| dev
->mc_list
) {
651 dev
->flags
|= IFF_PROMISC
;
652 outb(RMD_PROMISC
, EDLC_RMODE
); /* Enable promiscuous mode */
653 PRINTK((KERN_DEBUG
"%s: Entering promiscuous mode\n", dev
->name
));
655 PRINTK((KERN_DEBUG
"%s: Entering broadcast mode\n", dev
->name
));
656 outb(RMD_BROADCAST
, EDLC_RMODE
); /* Disable promiscuous mode, use normal mode */
660 static void hardware_send_packet(struct net_device
*dev
, char *buf
, int length
, int pad
)
662 struct ni5010_local
*lp
= netdev_priv(dev
);
663 int ioaddr
= dev
->base_addr
;
665 unsigned int buf_offs
;
667 PRINTK2((KERN_DEBUG
"%s: entering hardware_send_packet\n", dev
->name
));
669 if (length
> ETH_FRAME_LEN
) {
670 PRINTK((KERN_WARNING
"%s: packet too large, not possible\n",
675 if (NI5010_DEBUG
) ni5010_show_registers(dev
);
677 if (inb(IE_ISTAT
) & IS_EN_XMT
) {
678 PRINTK((KERN_WARNING
"%s: sending packet while already transmitting, not possible\n",
683 if (NI5010_DEBUG
> 3) dump_packet(buf
, length
);
685 buf_offs
= NI5010_BUFSIZE
- length
- pad
;
687 spin_lock_irqsave(&lp
->lock
, flags
);
688 lp
->o_pkt_size
= length
+ pad
;
690 outb(0, EDLC_RMASK
); /* Mask all receive interrupts */
691 outb(0, IE_MMODE
); /* Put Xmit buffer on system bus */
692 outb(0xff, EDLC_RCLR
); /* Clear out pending rcv interrupts */
694 outw(buf_offs
, IE_GP
); /* Point GP at start of packet */
695 outsb(IE_XBUF
, buf
, length
); /* Put data in buffer */
699 outw(buf_offs
, IE_GP
); /* Rewrite where packet starts */
701 /* should work without that outb() (Crynwr used it) */
702 /*outb(MM_MUX, IE_MMODE);*/ /* Xmt buffer to EDLC bus */
703 outb(MM_EN_XMT
| MM_MUX
, IE_MMODE
); /* Begin transmission */
704 outb(XM_ALL
, EDLC_XMASK
); /* Cause interrupt after completion or fail */
706 spin_unlock_irqrestore(&lp
->lock
, flags
);
708 netif_wake_queue(dev
);
710 if (NI5010_DEBUG
) ni5010_show_registers(dev
);
713 static void chipset_init(struct net_device
*dev
, int startp
)
715 /* FIXME: Move some stuff here */
716 PRINTK3((KERN_DEBUG
"%s: doing NOTHING in chipset_init\n", dev
->name
));
719 static void ni5010_show_registers(struct net_device
*dev
)
721 int ioaddr
= dev
->base_addr
;
723 PRINTK3((KERN_DEBUG
"%s: XSTAT %#2.2x\n", dev
->name
, inb(EDLC_XSTAT
)));
724 PRINTK3((KERN_DEBUG
"%s: XMASK %#2.2x\n", dev
->name
, inb(EDLC_XMASK
)));
725 PRINTK3((KERN_DEBUG
"%s: RSTAT %#2.2x\n", dev
->name
, inb(EDLC_RSTAT
)));
726 PRINTK3((KERN_DEBUG
"%s: RMASK %#2.2x\n", dev
->name
, inb(EDLC_RMASK
)));
727 PRINTK3((KERN_DEBUG
"%s: RMODE %#2.2x\n", dev
->name
, inb(EDLC_RMODE
)));
728 PRINTK3((KERN_DEBUG
"%s: XMODE %#2.2x\n", dev
->name
, inb(EDLC_XMODE
)));
729 PRINTK3((KERN_DEBUG
"%s: ISTAT %#2.2x\n", dev
->name
, inb(IE_ISTAT
)));
733 static struct net_device
*dev_ni5010
;
735 module_param(io
, int, 0);
736 module_param(irq
, int, 0);
737 MODULE_PARM_DESC(io
, "ni5010 I/O base address");
738 MODULE_PARM_DESC(irq
, "ni5010 IRQ number");
740 static int __init
ni5010_init_module(void)
742 PRINTK2((KERN_DEBUG
"%s: entering init_module\n", boardname
));
744 if(io <= 0 || irq == 0){
745 printk(KERN_WARNING "%s: Autoprobing not allowed for modules.\n", boardname);
746 printk(KERN_WARNING "%s: Set symbols 'io' and 'irq'\n", boardname);
751 printk(KERN_WARNING
"%s: Autoprobing for modules is hazardous, trying anyway..\n", boardname
);
754 PRINTK2((KERN_DEBUG
"%s: init_module irq=%#2x, io=%#3x\n", boardname
, irq
, io
));
755 dev_ni5010
= ni5010_probe(-1);
756 if (IS_ERR(dev_ni5010
))
757 return PTR_ERR(dev_ni5010
);
761 static void __exit
ni5010_cleanup_module(void)
763 PRINTK2((KERN_DEBUG
"%s: entering cleanup_module\n", boardname
));
764 unregister_netdev(dev_ni5010
);
765 release_region(dev_ni5010
->base_addr
, NI5010_IO_EXTENT
);
766 free_netdev(dev_ni5010
);
768 module_init(ni5010_init_module
);
769 module_exit(ni5010_cleanup_module
);
771 MODULE_LICENSE("GPL");
775 * compile-command: "gcc -D__KERNEL__ -I/usr/src/linux/net/inet -Wall -Wstrict-prototypes -O6 -m486 -c ni5010.c"
777 * kept-new-versions: 5