2 * tms380tr.c: A network driver library for Texas Instruments TMS380-based
5 * Originally sktr.c: Written 1997 by Christoph Goos
7 * A fine result of the Linux Systems Network Architecture Project.
8 * http://www.vanheusden.com/sna/
10 * This software may be used and distributed according to the terms
11 * of the GNU General Public License, incorporated herein by reference.
13 * The following modules are currently available for card support:
14 * - tmspci (Generic PCI card support)
15 * - abyss (Madge PCI support)
16 * - tmsisa (SysKonnect TR4/16 ISA)
19 * - The hardware related parts of this driver are take from
20 * the SysKonnect Token Ring driver for Windows NT.
21 * - I used the IBM Token Ring driver 'ibmtr.c' as a base for this
22 * driver, as well as the 'skeleton.c' driver by Donald Becker.
23 * - Also various other drivers in the linux source tree were taken
24 * as samples for some tasks.
25 * - TI TMS380 Second-Generation Token Ring User's Guide
26 * - TI datasheets for respective chips
27 * - David Hein at Texas Instruments
28 * - Various Madge employees
31 * JS Jay Schulist jschlst@samba.org
32 * CG Christoph Goos cgoos@syskonnect.de
34 * MLP Mike Phillips phillim@amtrak.com
35 * JF Jochen Friedrich jochen@scram.de
37 * Modification History:
38 * 29-Aug-97 CG Created
39 * 04-Apr-98 CG Fixed problems caused by tok_timer_check
40 * 10-Apr-98 CG Fixed lockups at cable disconnection
41 * 27-May-98 JS Formated to Linux Kernel Format
42 * 31-May-98 JS Hacked in PCI support
43 * 16-Jun-98 JS Modulized for multiple cards with one driver
44 * Sep-99 AF Renamed to tms380tr (supports more than SK's)
45 * 23-Sep-99 AF Added Compaq and Thomas-Conrad PCI support
46 * Fixed a bug causing double copies on PCI
47 * Fixed for new multicast stuff (2.2/2.3)
48 * 25-Sep-99 AF Uped TPL_NUM from 3 to 9
49 * Removed extraneous 'No free TPL'
50 * 22-Dec-99 AF Added Madge PCI Mk2 support and generalized
51 * parts of the initilization procedure.
52 * 30-Dec-99 AF Turned tms380tr into a library ala 8390.
53 * Madge support is provided in the abyss module
54 * Generic PCI support is in the tmspci module.
55 * 30-Nov-00 JF Updated PCI code to support IO MMU via
56 * pci_map_static(). Alpha uses this MMU for ISA
58 * 14-Jan-01 JF Fix DMA on ifdown/ifup sequences. Some
60 * 13-Jan-02 JF Add spinlock to fix race condition.
61 * 09-Nov-02 JF Fixed printks to not SPAM the console during
63 * 30-Dec-02 JF Removed incorrect __init from
65 * 22-Jul-05 JF Converted to dma-mapping.
68 * 1. Multi/Broadcast packet handling (this may have fixed itself)
69 * 2. Write a sktrisa module that includes the old ISA support (done)
70 * 3. Allow modules to load their own microcode
71 * 4. Speed up the BUD process -- freezing the kernel for 3+sec is
73 * 5. Still a few remaining stalls when the cable is unplugged.
77 static const char version[] = "tms380tr.c: v1.10 30/12/2002 by Christoph Goos, Adam Fritzler\n";
80 #include <linux/module.h>
81 #include <linux/kernel.h>
82 #include <linux/types.h>
83 #include <linux/fcntl.h>
84 #include <linux/interrupt.h>
85 #include <linux/ptrace.h>
86 #include <linux/ioport.h>
88 #include <linux/string.h>
89 #include <linux/time.h>
90 #include <linux/errno.h>
91 #include <linux/init.h>
92 #include <linux/dma-mapping.h>
93 #include <linux/delay.h>
94 #include <linux/netdevice.h>
95 #include <linux/etherdevice.h>
96 #include <linux/skbuff.h>
97 #include <linux/trdevice.h>
98 #include <linux/firmware.h>
99 #include <linux/bitops.h>
104 #include <asm/uaccess.h>
106 #include "tms380tr.h" /* Our Stuff */
108 /* Use 0 for production, 1 for verification, 2 for debug, and
109 * 3 for very verbose debug.
111 #ifndef TMS380TR_DEBUG
112 #define TMS380TR_DEBUG 0
114 static unsigned int tms380tr_debug = TMS380TR_DEBUG;
116 /* Index to functions, as function prototypes.
117 * Alphabetical by function name.
122 static int tms380tr_bringup_diags(struct net_device *dev);
124 static void tms380tr_cancel_tx_queue(struct net_local* tp);
125 static int tms380tr_chipset_init(struct net_device *dev);
126 static void tms380tr_chk_irq(struct net_device *dev);
127 static void tms380tr_chk_outstanding_cmds(struct net_device *dev);
128 static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr);
129 static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType);
130 int tms380tr_close(struct net_device *dev);
131 static void tms380tr_cmd_status_irq(struct net_device *dev);
133 static void tms380tr_disable_interrupts(struct net_device *dev);
134 #if TMS380TR_DEBUG > 0
135 static void tms380tr_dump(unsigned char *Data, int length);
138 static void tms380tr_enable_interrupts(struct net_device *dev);
139 static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command);
140 static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue);
143 static struct net_device_stats *tms380tr_get_stats(struct net_device *dev);
145 static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb,
146 struct net_device *dev);
148 static int tms380tr_init_adapter(struct net_device *dev);
149 static void tms380tr_init_ipb(struct net_local *tp);
150 static void tms380tr_init_net_local(struct net_device *dev);
151 static void tms380tr_init_opb(struct net_device *dev);
154 int tms380tr_open(struct net_device *dev);
155 static void tms380tr_open_adapter(struct net_device *dev);
158 static void tms380tr_rcv_status_irq(struct net_device *dev);
159 static int tms380tr_read_ptr(struct net_device *dev);
160 static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
161 unsigned short Address, int Length);
162 static int tms380tr_reset_adapter(struct net_device *dev);
163 static void tms380tr_reset_interrupt(struct net_device *dev);
164 static void tms380tr_ring_status_irq(struct net_device *dev);
166 static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb,
167 struct net_device *dev);
168 static void tms380tr_set_multicast_list(struct net_device *dev);
169 static int tms380tr_set_mac_address(struct net_device *dev, void *addr);
171 static void tms380tr_timer_chk(unsigned long data);
172 static void tms380tr_timer_end_wait(unsigned long data);
173 static void tms380tr_tx_status_irq(struct net_device *dev);
175 static void tms380tr_update_rcv_stats(struct net_local *tp,
176 unsigned char DataPtr[], unsigned int Length);
178 void tms380tr_wait(unsigned long time);
179 static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status);
180 static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status);
182 #define SIFREADB(reg) \
183 (((struct net_local *)netdev_priv(dev))->sifreadb(dev, reg))
184 #define SIFWRITEB(val, reg) \
185 (((struct net_local *)netdev_priv(dev))->sifwriteb(dev, val, reg))
186 #define SIFREADW(reg) \
187 (((struct net_local *)netdev_priv(dev))->sifreadw(dev, reg))
188 #define SIFWRITEW(val, reg) \
189 (((struct net_local *)netdev_priv(dev))->sifwritew(dev, val, reg))
193 #if 0 /* TMS380TR_DEBUG > 0 */
194 static int madgemc_sifprobe(struct net_device *dev)
196 unsigned char old, chk1, chk2;
198 old = SIFREADB(SIFADR); /* Get the old SIFADR value */
200 chk1 = 0; /* Begin with check value 0 */
202 madgemc_setregpage(dev, 0);
203 /* Write new SIFADR value */
204 SIFWRITEB(chk1, SIFADR);
205 chk2 = SIFREADB(SIFADR);
209 madgemc_setregpage(dev, 1);
210 /* Read, invert and write */
211 chk2 = SIFREADB(SIFADD);
215 madgemc_setregpage(dev, 0);
217 SIFWRITEB(chk2, SIFADR);
219 /* Read, invert and compare */
220 madgemc_setregpage(dev, 1);
221 chk2 = SIFREADB(SIFADD);
222 madgemc_setregpage(dev, 0);
226 return -1; /* No adapter */
228 } while(chk1 != 0); /* Repeat 128 times (all byte values) */
230 madgemc_setregpage(dev, 0); /* sanity */
231 /* Restore the SIFADR value */
232 SIFWRITEB(old, SIFADR);
239 * Open/initialize the board. This is called sometime after
240 * booting when the 'ifconfig' program is run.
242 * This routine should set everything up anew at each open, even
243 * registers that "should" only need to be set once at boot, so that
244 * there is non-reboot way to recover if something goes wrong.
246 int tms380tr_open(struct net_device *dev)
248 struct net_local *tp = netdev_priv(dev);
251 /* init the spinlock */
252 spin_lock_init(&tp->lock);
253 init_timer(&tp->timer);
255 /* Reset the hardware here. Don't forget to set the station address. */
257 #if defined(CONFIG_ISA) && defined(CONFIG_ISA_DMA_API)
260 unsigned long flags=claim_dma_lock();
261 disable_dma(dev->dma);
262 set_dma_mode(dev->dma, DMA_MODE_CASCADE);
263 enable_dma(dev->dma);
264 release_dma_lock(flags);
268 err = tms380tr_chipset_init(dev);
271 printk(KERN_INFO "%s: Chipset initialization error\n",
276 tp->timer.expires = jiffies + 30*HZ;
277 tp->timer.function = tms380tr_timer_end_wait;
278 tp->timer.data = (unsigned long)dev;
279 add_timer(&tp->timer);
281 printk(KERN_DEBUG "%s: Adapter RAM size: %dK\n",
282 dev->name, tms380tr_read_ptr(dev));
284 tms380tr_enable_interrupts(dev);
285 tms380tr_open_adapter(dev);
287 netif_start_queue(dev);
289 /* Wait for interrupt from hardware. If interrupt does not come,
290 * there will be a timeout from the timer.
293 interruptible_sleep_on(&tp->wait_for_tok_int);
294 del_timer(&tp->timer);
296 /* If AdapterVirtOpenFlag is 1, the adapter is now open for use */
297 if(tp->AdapterVirtOpenFlag == 0)
299 tms380tr_disable_interrupts(dev);
303 tp->StartTime = jiffies;
305 /* Start function control timer */
306 tp->timer.expires = jiffies + 2*HZ;
307 tp->timer.function = tms380tr_timer_chk;
308 tp->timer.data = (unsigned long)dev;
309 add_timer(&tp->timer);
315 * Timeout function while waiting for event
317 static void tms380tr_timer_end_wait(unsigned long data)
319 struct net_device *dev = (struct net_device*)data;
320 struct net_local *tp = netdev_priv(dev);
325 wake_up_interruptible(&tp->wait_for_tok_int);
330 * Initialize the chipset
332 static int tms380tr_chipset_init(struct net_device *dev)
334 struct net_local *tp = netdev_priv(dev);
337 tms380tr_init_ipb(tp);
338 tms380tr_init_opb(dev);
339 tms380tr_init_net_local(dev);
341 if(tms380tr_debug > 3)
342 printk(KERN_DEBUG "%s: Resetting adapter...\n", dev->name);
343 err = tms380tr_reset_adapter(dev);
347 if(tms380tr_debug > 3)
348 printk(KERN_DEBUG "%s: Bringup diags...\n", dev->name);
349 err = tms380tr_bringup_diags(dev);
353 if(tms380tr_debug > 3)
354 printk(KERN_DEBUG "%s: Init adapter...\n", dev->name);
355 err = tms380tr_init_adapter(dev);
359 if(tms380tr_debug > 3)
360 printk(KERN_DEBUG "%s: Done!\n", dev->name);
365 * Initializes the net_local structure.
367 static void tms380tr_init_net_local(struct net_device *dev)
369 struct net_local *tp = netdev_priv(dev);
384 tp->AdapterOpenFlag = 0;
385 tp->AdapterVirtOpenFlag = 0;
387 tp->OpenCommandIssued = 0;
388 tp->ReOpenInProgress = 0;
389 tp->HaltInProgress = 0;
390 tp->TransmitHaltScheduled = 0;
391 tp->LobeWireFaultLogged = 0;
392 tp->LastOpenStatus = 0;
393 tp->MaxPacketSize = DEFAULT_PACKET_SIZE;
395 /* Create circular chain of transmit lists */
396 for (i = 0; i < TPL_NUM; i++)
398 tp->Tpl[i].NextTPLAddr = htonl(((char *)(&tp->Tpl[(i+1) % TPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
399 tp->Tpl[i].Status = 0;
400 tp->Tpl[i].FrameSize = 0;
401 tp->Tpl[i].FragList[0].DataCount = 0;
402 tp->Tpl[i].FragList[0].DataAddr = 0;
403 tp->Tpl[i].NextTPLPtr = &tp->Tpl[(i+1) % TPL_NUM];
404 tp->Tpl[i].MData = NULL;
405 tp->Tpl[i].TPLIndex = i;
406 tp->Tpl[i].DMABuff = 0;
407 tp->Tpl[i].BusyFlag = 0;
410 tp->TplFree = tp->TplBusy = &tp->Tpl[0];
412 /* Create circular chain of receive lists */
413 for (i = 0; i < RPL_NUM; i++)
415 tp->Rpl[i].NextRPLAddr = htonl(((char *)(&tp->Rpl[(i+1) % RPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
416 tp->Rpl[i].Status = (RX_VALID | RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
417 tp->Rpl[i].FrameSize = 0;
418 tp->Rpl[i].FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
420 /* Alloc skb and point adapter to data area */
421 tp->Rpl[i].Skb = dev_alloc_skb(tp->MaxPacketSize);
422 tp->Rpl[i].DMABuff = 0;
424 /* skb == NULL ? then use local buffer */
425 if(tp->Rpl[i].Skb == NULL)
427 tp->Rpl[i].SkbStat = SKB_UNAVAILABLE;
428 tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
429 tp->Rpl[i].MData = tp->LocalRxBuffers[i];
431 else /* SKB != NULL */
433 tp->Rpl[i].Skb->dev = dev;
434 skb_put(tp->Rpl[i].Skb, tp->MaxPacketSize);
436 /* data unreachable for DMA ? then use local buffer */
437 dmabuf = dma_map_single(tp->pdev, tp->Rpl[i].Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE);
438 if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
440 tp->Rpl[i].SkbStat = SKB_DATA_COPY;
441 tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
442 tp->Rpl[i].MData = tp->LocalRxBuffers[i];
444 else /* DMA directly in skb->data */
446 tp->Rpl[i].SkbStat = SKB_DMA_DIRECT;
447 tp->Rpl[i].FragList[0].DataAddr = htonl(dmabuf);
448 tp->Rpl[i].MData = tp->Rpl[i].Skb->data;
449 tp->Rpl[i].DMABuff = dmabuf;
453 tp->Rpl[i].NextRPLPtr = &tp->Rpl[(i+1) % RPL_NUM];
454 tp->Rpl[i].RPLIndex = i;
457 tp->RplHead = &tp->Rpl[0];
458 tp->RplTail = &tp->Rpl[RPL_NUM-1];
459 tp->RplTail->Status = (RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
463 * Initializes the initialisation parameter block.
465 static void tms380tr_init_ipb(struct net_local *tp)
467 tp->ipb.Init_Options = BURST_MODE;
468 tp->ipb.CMD_Status_IV = 0;
471 tp->ipb.Ring_Status_IV = 0;
472 tp->ipb.SCB_Clear_IV = 0;
473 tp->ipb.Adapter_CHK_IV = 0;
474 tp->ipb.RX_Burst_Size = BURST_SIZE;
475 tp->ipb.TX_Burst_Size = BURST_SIZE;
476 tp->ipb.DMA_Abort_Thrhld = DMA_RETRIES;
477 tp->ipb.SCB_Addr = 0;
478 tp->ipb.SSB_Addr = 0;
482 * Initializes the open parameter block.
484 static void tms380tr_init_opb(struct net_device *dev)
486 struct net_local *tp;
488 unsigned short RplSize = RPL_SIZE;
489 unsigned short TplSize = TPL_SIZE;
490 unsigned short BufferSize = BUFFER_SIZE;
493 tp = netdev_priv(dev);
495 tp->ocpl.OPENOptions = 0;
496 tp->ocpl.OPENOptions |= ENABLE_FULL_DUPLEX_SELECTION;
497 tp->ocpl.FullDuplex = 0;
498 tp->ocpl.FullDuplex |= OPEN_FULL_DUPLEX_OFF;
503 * We go ahead and put it in the OPB even though on
504 * most of the generic adapters this isn't required.
505 * Its simpler this way. -- ASF
508 tp->ocpl.NodeAddr[i] = ((unsigned char *)dev->dev_addr)[i];
510 tp->ocpl.GroupAddr = 0;
511 tp->ocpl.FunctAddr = 0;
512 tp->ocpl.RxListSize = cpu_to_be16((unsigned short)RplSize);
513 tp->ocpl.TxListSize = cpu_to_be16((unsigned short)TplSize);
514 tp->ocpl.BufSize = cpu_to_be16((unsigned short)BufferSize);
515 tp->ocpl.Reserved = 0;
516 tp->ocpl.TXBufMin = TX_BUF_MIN;
517 tp->ocpl.TXBufMax = TX_BUF_MAX;
519 Addr = htonl(((char *)tp->ProductID - (char *)tp) + tp->dmabuffer);
521 tp->ocpl.ProdIDAddr[0] = LOWORD(Addr);
522 tp->ocpl.ProdIDAddr[1] = HIWORD(Addr);
526 * Send OPEN command to adapter
528 static void tms380tr_open_adapter(struct net_device *dev)
530 struct net_local *tp = netdev_priv(dev);
532 if(tp->OpenCommandIssued)
535 tp->OpenCommandIssued = 1;
536 tms380tr_exec_cmd(dev, OC_OPEN);
540 * Clear the adapter's interrupt flag. Clear system interrupt enable
541 * (SINTEN): disable adapter to system interrupts.
543 static void tms380tr_disable_interrupts(struct net_device *dev)
545 SIFWRITEB(0, SIFACL);
549 * Set the adapter's interrupt flag. Set system interrupt enable
550 * (SINTEN): enable adapter to system interrupts.
552 static void tms380tr_enable_interrupts(struct net_device *dev)
554 SIFWRITEB(ACL_SINTEN, SIFACL);
558 * Put command in command queue, try to execute it.
560 static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command)
562 struct net_local *tp = netdev_priv(dev);
564 tp->CMDqueue |= Command;
565 tms380tr_chk_outstanding_cmds(dev);
568 static void tms380tr_timeout(struct net_device *dev)
571 * If we get here, some higher level has decided we are broken.
572 * There should really be a "kick me" function call instead.
574 * Resetting the token ring adapter takes a long time so just
575 * fake transmission time and go on trying. Our own timeout
576 * routine is in tms380tr_timer_chk()
578 dev->trans_start = jiffies; /* prevent tx timeout */
579 netif_wake_queue(dev);
583 * Gets skb from system, queues it and checks if it can be sent
585 static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb,
586 struct net_device *dev)
588 struct net_local *tp = netdev_priv(dev);
591 rc = tms380tr_hardware_send_packet(skb, dev);
592 if(tp->TplFree->NextTPLPtr->BusyFlag)
593 netif_stop_queue(dev);
598 * Move frames into adapter tx queue
600 static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb,
601 struct net_device *dev)
608 dma_addr_t dmabuf, newbuf;
609 struct net_local *tp = netdev_priv(dev);
611 /* Try to get a free TPL from the chain.
613 * NOTE: We *must* always leave one unused TPL in the chain,
614 * because otherwise the adapter might send frames twice.
616 spin_lock_irqsave(&tp->lock, flags);
617 if(tp->TplFree->NextTPLPtr->BusyFlag) { /* No free TPL */
618 if (tms380tr_debug > 0)
619 printk(KERN_DEBUG "%s: No free TPL\n", dev->name);
620 spin_unlock_irqrestore(&tp->lock, flags);
621 return NETDEV_TX_BUSY;
626 /* Is buffer reachable for Busmaster-DMA? */
629 dmabuf = dma_map_single(tp->pdev, skb->data, length, DMA_TO_DEVICE);
630 if(tp->dmalimit && (dmabuf + length > tp->dmalimit)) {
631 /* Copy frame to local buffer */
632 dma_unmap_single(tp->pdev, dmabuf, length, DMA_TO_DEVICE);
634 i = tp->TplFree->TPLIndex;
635 buf = tp->LocalTxBuffers[i];
636 skb_copy_from_linear_data(skb, buf, length);
637 newbuf = ((char *)buf - (char *)tp) + tp->dmabuffer;
640 /* Send direct from skb->data */
644 /* Source address in packet? */
645 tms380tr_chk_src_addr(buf, dev->dev_addr);
646 tp->LastSendTime = jiffies;
647 tpl = tp->TplFree; /* Get the "free" TPL */
648 tpl->BusyFlag = 1; /* Mark TPL as busy */
649 tp->TplFree = tpl->NextTPLPtr;
651 /* Save the skb for delayed return of skb to system */
653 tpl->DMABuff = dmabuf;
654 tpl->FragList[0].DataCount = cpu_to_be16((unsigned short)length);
655 tpl->FragList[0].DataAddr = htonl(newbuf);
657 /* Write the data length in the transmit list. */
658 tpl->FrameSize = cpu_to_be16((unsigned short)length);
661 /* Transmit the frame and set the status values. */
662 tms380tr_write_tpl_status(tpl, TX_VALID | TX_START_FRAME
663 | TX_END_FRAME | TX_PASS_SRC_ADDR
666 /* Let adapter send the frame. */
667 tms380tr_exec_sifcmd(dev, CMD_TX_VALID);
668 spin_unlock_irqrestore(&tp->lock, flags);
674 * Write the given value to the 'Status' field of the specified TPL.
675 * NOTE: This function should be used whenever the status of any TPL must be
676 * modified by the driver, because the compiler may otherwise change the
677 * order of instructions such that writing the TPL status may be executed at
678 * an undesirable time. When this function is used, the status is always
679 * written when the function is called.
681 static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status)
683 tpl->Status = Status;
686 static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr)
690 if((((unsigned long)frame[8]) & ~0x80) != 0) /* Compare 4 bytes */
692 if((unsigned short)frame[12] != 0) /* Compare 2 bytes */
695 SRBit = frame[8] & 0x80;
696 memcpy(&frame[8], hw_addr, 6);
701 * The timer routine: Check if adapter still open and working, reopen if not.
703 static void tms380tr_timer_chk(unsigned long data)
705 struct net_device *dev = (struct net_device*)data;
706 struct net_local *tp = netdev_priv(dev);
708 if(tp->HaltInProgress)
711 tms380tr_chk_outstanding_cmds(dev);
712 if(time_before(tp->LastSendTime + SEND_TIMEOUT, jiffies) &&
713 (tp->TplFree != tp->TplBusy))
715 /* Anything to send, but stalled too long */
716 tp->LastSendTime = jiffies;
717 tms380tr_exec_cmd(dev, OC_CLOSE); /* Does reopen automatically */
720 tp->timer.expires = jiffies + 2*HZ;
721 add_timer(&tp->timer);
723 if(tp->AdapterOpenFlag || tp->ReOpenInProgress)
725 tp->ReOpenInProgress = 1;
726 tms380tr_open_adapter(dev);
730 * The typical workload of the driver: Handle the network interface interrupts.
732 irqreturn_t tms380tr_interrupt(int irq, void *dev_id)
734 struct net_device *dev = dev_id;
735 struct net_local *tp;
736 unsigned short irq_type;
739 tp = netdev_priv(dev);
741 irq_type = SIFREADW(SIFSTS);
743 while(irq_type & STS_SYSTEM_IRQ) {
745 irq_type &= STS_IRQ_MASK;
747 if(!tms380tr_chk_ssb(tp, irq_type)) {
748 printk(KERN_DEBUG "%s: DATA LATE occurred\n", dev->name);
753 case STS_IRQ_RECEIVE_STATUS:
754 tms380tr_reset_interrupt(dev);
755 tms380tr_rcv_status_irq(dev);
758 case STS_IRQ_TRANSMIT_STATUS:
759 /* Check if TRANSMIT.HALT command is complete */
760 if(tp->ssb.Parm[0] & COMMAND_COMPLETE) {
761 tp->TransmitCommandActive = 0;
762 tp->TransmitHaltScheduled = 0;
764 /* Issue a new transmit command. */
765 tms380tr_exec_cmd(dev, OC_TRANSMIT);
768 tms380tr_reset_interrupt(dev);
769 tms380tr_tx_status_irq(dev);
772 case STS_IRQ_COMMAND_STATUS:
773 /* The SSB contains status of last command
774 * other than receive/transmit.
776 tms380tr_cmd_status_irq(dev);
779 case STS_IRQ_SCB_CLEAR:
780 /* The SCB is free for another command. */
782 tms380tr_chk_outstanding_cmds(dev);
785 case STS_IRQ_RING_STATUS:
786 tms380tr_ring_status_irq(dev);
789 case STS_IRQ_ADAPTER_CHECK:
790 tms380tr_chk_irq(dev);
793 case STS_IRQ_LLC_STATUS:
794 printk(KERN_DEBUG "tms380tr: unexpected LLC status IRQ\n");
798 printk(KERN_DEBUG "tms380tr: unexpected Timer IRQ\n");
801 case STS_IRQ_RECEIVE_PENDING:
802 printk(KERN_DEBUG "tms380tr: unexpected Receive Pending IRQ\n");
806 printk(KERN_DEBUG "Unknown Token Ring IRQ (0x%04x)\n", irq_type);
810 /* Reset system interrupt if not already done. */
811 if(irq_type != STS_IRQ_TRANSMIT_STATUS &&
812 irq_type != STS_IRQ_RECEIVE_STATUS) {
813 tms380tr_reset_interrupt(dev);
816 irq_type = SIFREADW(SIFSTS);
819 return IRQ_RETVAL(handled);
823 * Reset the INTERRUPT SYSTEM bit and issue SSB CLEAR command.
825 static void tms380tr_reset_interrupt(struct net_device *dev)
827 struct net_local *tp = netdev_priv(dev);
831 * [Workaround for "Data Late"]
832 * Set all fields of the SSB to well-defined values so we can
833 * check if the adapter has written the SSB.
836 ssb->STS = (unsigned short) -1;
837 ssb->Parm[0] = (unsigned short) -1;
838 ssb->Parm[1] = (unsigned short) -1;
839 ssb->Parm[2] = (unsigned short) -1;
841 /* Free SSB by issuing SSB_CLEAR command after reading IRQ code
842 * and clear STS_SYSTEM_IRQ bit: enable adapter for further interrupts.
844 tms380tr_exec_sifcmd(dev, CMD_SSB_CLEAR | CMD_CLEAR_SYSTEM_IRQ);
848 * Check if the SSB has actually been written by the adapter.
850 static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType)
852 SSB *ssb = &tp->ssb; /* The address of the SSB. */
854 /* C 0 1 2 INTERRUPT CODE
855 * - - - - --------------
856 * 1 1 1 1 TRANSMIT STATUS
857 * 1 1 1 1 RECEIVE STATUS
858 * 1 ? ? 0 COMMAND STATUS
860 * 1 1 0 0 RING STATUS
861 * 0 0 0 0 ADAPTER CHECK
863 * 0 = SSB field not affected by interrupt
864 * 1 = SSB field is affected by interrupt
866 * C = SSB ADDRESS +0: COMMAND
867 * 0 = SSB ADDRESS +2: STATUS 0
868 * 1 = SSB ADDRESS +4: STATUS 1
869 * 2 = SSB ADDRESS +6: STATUS 2
872 /* Check if this interrupt does use the SSB. */
874 if(IrqType != STS_IRQ_TRANSMIT_STATUS &&
875 IrqType != STS_IRQ_RECEIVE_STATUS &&
876 IrqType != STS_IRQ_COMMAND_STATUS &&
877 IrqType != STS_IRQ_RING_STATUS)
879 return 1; /* SSB not involved. */
882 /* Note: All fields of the SSB have been set to all ones (-1) after it
883 * has last been used by the software (see DriverIsr()).
885 * Check if the affected SSB fields are still unchanged.
888 if(ssb->STS == (unsigned short) -1)
889 return 0; /* Command field not yet available. */
890 if(IrqType == STS_IRQ_COMMAND_STATUS)
891 return 1; /* Status fields not always affected. */
892 if(ssb->Parm[0] == (unsigned short) -1)
893 return 0; /* Status 1 field not yet available. */
894 if(IrqType == STS_IRQ_RING_STATUS)
895 return 1; /* Status 2 & 3 fields not affected. */
897 /* Note: At this point, the interrupt is either TRANSMIT or RECEIVE. */
898 if(ssb->Parm[1] == (unsigned short) -1)
899 return 0; /* Status 2 field not yet available. */
900 if(ssb->Parm[2] == (unsigned short) -1)
901 return 0; /* Status 3 field not yet available. */
903 return 1; /* All SSB fields have been written by the adapter. */
907 * Evaluates the command results status in the SSB status field.
909 static void tms380tr_cmd_status_irq(struct net_device *dev)
911 struct net_local *tp = netdev_priv(dev);
912 unsigned short ssb_cmd, ssb_parm_0;
913 unsigned short ssb_parm_1;
914 char *open_err = "Open error -";
915 char *code_err = "Open code -";
917 /* Copy the ssb values to local variables */
918 ssb_cmd = tp->ssb.STS;
919 ssb_parm_0 = tp->ssb.Parm[0];
920 ssb_parm_1 = tp->ssb.Parm[1];
925 if(!tp->ReOpenInProgress)
926 wake_up_interruptible(&tp->wait_for_tok_int);
928 tp->OpenCommandIssued = 0;
931 if((ssb_parm_0 & 0x00FF) == GOOD_COMPLETION)
933 /* Success, the adapter is open. */
934 tp->LobeWireFaultLogged = 0;
935 tp->AdapterOpenFlag = 1;
936 tp->AdapterVirtOpenFlag = 1;
937 tp->TransmitCommandActive = 0;
938 tms380tr_exec_cmd(dev, OC_TRANSMIT);
939 tms380tr_exec_cmd(dev, OC_RECEIVE);
941 if(tp->ReOpenInProgress)
942 tp->ReOpenInProgress = 0;
946 else /* The adapter did not open. */
948 if(ssb_parm_0 & NODE_ADDR_ERROR)
949 printk(KERN_INFO "%s: Node address error\n",
951 if(ssb_parm_0 & LIST_SIZE_ERROR)
952 printk(KERN_INFO "%s: List size error\n",
954 if(ssb_parm_0 & BUF_SIZE_ERROR)
955 printk(KERN_INFO "%s: Buffer size error\n",
957 if(ssb_parm_0 & TX_BUF_COUNT_ERROR)
958 printk(KERN_INFO "%s: Tx buffer count error\n",
960 if(ssb_parm_0 & INVALID_OPEN_OPTION)
961 printk(KERN_INFO "%s: Invalid open option\n",
963 if(ssb_parm_0 & OPEN_ERROR)
965 /* Show the open phase. */
966 switch(ssb_parm_0 & OPEN_PHASES_MASK)
968 case LOBE_MEDIA_TEST:
969 if(!tp->LobeWireFaultLogged)
971 tp->LobeWireFaultLogged = 1;
972 printk(KERN_INFO "%s: %s Lobe wire fault (check cable !).\n", dev->name, open_err);
974 tp->ReOpenInProgress = 1;
975 tp->AdapterOpenFlag = 0;
976 tp->AdapterVirtOpenFlag = 1;
977 tms380tr_open_adapter(dev);
980 case PHYSICAL_INSERTION:
981 printk(KERN_INFO "%s: %s Physical insertion.\n", dev->name, open_err);
984 case ADDRESS_VERIFICATION:
985 printk(KERN_INFO "%s: %s Address verification.\n", dev->name, open_err);
988 case PARTICIPATION_IN_RING_POLL:
989 printk(KERN_INFO "%s: %s Participation in ring poll.\n", dev->name, open_err);
992 case REQUEST_INITIALISATION:
993 printk(KERN_INFO "%s: %s Request initialisation.\n", dev->name, open_err);
996 case FULLDUPLEX_CHECK:
997 printk(KERN_INFO "%s: %s Full duplex check.\n", dev->name, open_err);
1001 printk(KERN_INFO "%s: %s Unknown open phase\n", dev->name, open_err);
1005 /* Show the open errors. */
1006 switch(ssb_parm_0 & OPEN_ERROR_CODES_MASK)
1008 case OPEN_FUNCTION_FAILURE:
1009 printk(KERN_INFO "%s: %s OPEN_FUNCTION_FAILURE", dev->name, code_err);
1010 tp->LastOpenStatus =
1011 OPEN_FUNCTION_FAILURE;
1014 case OPEN_SIGNAL_LOSS:
1015 printk(KERN_INFO "%s: %s OPEN_SIGNAL_LOSS\n", dev->name, code_err);
1016 tp->LastOpenStatus =
1021 printk(KERN_INFO "%s: %s OPEN_TIMEOUT\n", dev->name, code_err);
1022 tp->LastOpenStatus =
1026 case OPEN_RING_FAILURE:
1027 printk(KERN_INFO "%s: %s OPEN_RING_FAILURE\n", dev->name, code_err);
1028 tp->LastOpenStatus =
1032 case OPEN_RING_BEACONING:
1033 printk(KERN_INFO "%s: %s OPEN_RING_BEACONING\n", dev->name, code_err);
1034 tp->LastOpenStatus =
1035 OPEN_RING_BEACONING;
1038 case OPEN_DUPLICATE_NODEADDR:
1039 printk(KERN_INFO "%s: %s OPEN_DUPLICATE_NODEADDR\n", dev->name, code_err);
1040 tp->LastOpenStatus =
1041 OPEN_DUPLICATE_NODEADDR;
1044 case OPEN_REQUEST_INIT:
1045 printk(KERN_INFO "%s: %s OPEN_REQUEST_INIT\n", dev->name, code_err);
1046 tp->LastOpenStatus =
1050 case OPEN_REMOVE_RECEIVED:
1051 printk(KERN_INFO "%s: %s OPEN_REMOVE_RECEIVED", dev->name, code_err);
1052 tp->LastOpenStatus =
1053 OPEN_REMOVE_RECEIVED;
1056 case OPEN_FULLDUPLEX_SET:
1057 printk(KERN_INFO "%s: %s OPEN_FULLDUPLEX_SET\n", dev->name, code_err);
1058 tp->LastOpenStatus =
1059 OPEN_FULLDUPLEX_SET;
1063 printk(KERN_INFO "%s: %s Unknown open err code", dev->name, code_err);
1064 tp->LastOpenStatus =
1065 OPEN_FUNCTION_FAILURE;
1070 tp->AdapterOpenFlag = 0;
1071 tp->AdapterVirtOpenFlag = 0;
1078 if(ssb_cmd != READ_ERROR_LOG)
1081 /* Add values from the error log table to the MAC
1082 * statistics counters and update the errorlogtable
1085 tp->MacStat.line_errors += tp->errorlogtable.Line_Error;
1086 tp->MacStat.burst_errors += tp->errorlogtable.Burst_Error;
1087 tp->MacStat.A_C_errors += tp->errorlogtable.ARI_FCI_Error;
1088 tp->MacStat.lost_frames += tp->errorlogtable.Lost_Frame_Error;
1089 tp->MacStat.recv_congest_count += tp->errorlogtable.Rx_Congest_Error;
1090 tp->MacStat.rx_errors += tp->errorlogtable.Rx_Congest_Error;
1091 tp->MacStat.frame_copied_errors += tp->errorlogtable.Frame_Copied_Error;
1092 tp->MacStat.token_errors += tp->errorlogtable.Token_Error;
1093 tp->MacStat.dummy1 += tp->errorlogtable.DMA_Bus_Error;
1094 tp->MacStat.dummy1 += tp->errorlogtable.DMA_Parity_Error;
1095 tp->MacStat.abort_delimiters += tp->errorlogtable.AbortDelimeters;
1096 tp->MacStat.frequency_errors += tp->errorlogtable.Frequency_Error;
1097 tp->MacStat.internal_errors += tp->errorlogtable.Internal_Error;
1102 * The inverse routine to tms380tr_open().
1104 int tms380tr_close(struct net_device *dev)
1106 struct net_local *tp = netdev_priv(dev);
1107 netif_stop_queue(dev);
1109 del_timer(&tp->timer);
1111 /* Flush the Tx and disable Rx here. */
1113 tp->HaltInProgress = 1;
1114 tms380tr_exec_cmd(dev, OC_CLOSE);
1115 tp->timer.expires = jiffies + 1*HZ;
1116 tp->timer.function = tms380tr_timer_end_wait;
1117 tp->timer.data = (unsigned long)dev;
1118 add_timer(&tp->timer);
1120 tms380tr_enable_interrupts(dev);
1123 interruptible_sleep_on(&tp->wait_for_tok_int);
1124 tp->TransmitCommandActive = 0;
1126 del_timer(&tp->timer);
1127 tms380tr_disable_interrupts(dev);
1129 #if defined(CONFIG_ISA) && defined(CONFIG_ISA_DMA_API)
1132 unsigned long flags=claim_dma_lock();
1133 disable_dma(dev->dma);
1134 release_dma_lock(flags);
1138 SIFWRITEW(0xFF00, SIFCMD);
1140 if(dev->dma > 0) /* what the? */
1141 SIFWRITEB(0xff, POSREG);
1143 tms380tr_cancel_tx_queue(tp);
1149 * Get the current statistics. This may be called with the card open
1152 static struct net_device_stats *tms380tr_get_stats(struct net_device *dev)
1154 struct net_local *tp = netdev_priv(dev);
1156 return (struct net_device_stats *)&tp->MacStat;
1160 * Set or clear the multicast filter for this adapter.
1162 static void tms380tr_set_multicast_list(struct net_device *dev)
1164 struct net_local *tp = netdev_priv(dev);
1165 unsigned int OpenOptions;
1167 OpenOptions = tp->ocpl.OPENOptions &
1168 ~(PASS_ADAPTER_MAC_FRAMES
1169 | PASS_ATTENTION_FRAMES
1170 | PASS_BEACON_MAC_FRAMES
1171 | COPY_ALL_MAC_FRAMES
1172 | COPY_ALL_NON_MAC_FRAMES);
1174 tp->ocpl.FunctAddr = 0;
1176 if(dev->flags & IFF_PROMISC)
1177 /* Enable promiscuous mode */
1178 OpenOptions |= COPY_ALL_NON_MAC_FRAMES |
1179 COPY_ALL_MAC_FRAMES;
1182 if(dev->flags & IFF_ALLMULTI)
1184 /* Disable promiscuous mode, use normal mode. */
1185 tp->ocpl.FunctAddr = 0xFFFFFFFF;
1189 struct netdev_hw_addr *ha;
1191 netdev_for_each_mc_addr(ha, dev) {
1192 ((char *)(&tp->ocpl.FunctAddr))[0] |=
1194 ((char *)(&tp->ocpl.FunctAddr))[1] |=
1196 ((char *)(&tp->ocpl.FunctAddr))[2] |=
1198 ((char *)(&tp->ocpl.FunctAddr))[3] |=
1202 tms380tr_exec_cmd(dev, OC_SET_FUNCT_ADDR);
1205 tp->ocpl.OPENOptions = OpenOptions;
1206 tms380tr_exec_cmd(dev, OC_MODIFY_OPEN_PARMS);
1210 * Wait for some time (microseconds)
1212 void tms380tr_wait(unsigned long time)
1217 tmp = jiffies + time/(1000000/HZ);
1219 tmp = schedule_timeout_interruptible(tmp);
1220 } while(time_after(tmp, jiffies));
1222 mdelay(time / 1000);
1227 * Write a command value to the SIFCMD register
1229 static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue)
1232 unsigned short SifStsValue;
1233 unsigned long loop_counter;
1235 WriteValue = ((WriteValue ^ CMD_SYSTEM_IRQ) | CMD_INTERRUPT_ADAPTER);
1236 cmd = (unsigned short)WriteValue;
1237 loop_counter = 0,5 * 800000;
1239 SifStsValue = SIFREADW(SIFSTS);
1240 } while((SifStsValue & CMD_INTERRUPT_ADAPTER) && loop_counter--);
1241 SIFWRITEW(cmd, SIFCMD);
1245 * Processes adapter hardware reset, halts adapter and downloads firmware,
1246 * clears the halt bit.
1248 static int tms380tr_reset_adapter(struct net_device *dev)
1250 struct net_local *tp = netdev_priv(dev);
1251 unsigned short *fw_ptr;
1252 unsigned short count, c, count2;
1253 const struct firmware *fw_entry = NULL;
1255 if (request_firmware(&fw_entry, "tms380tr.bin", tp->pdev) != 0) {
1256 printk(KERN_ALERT "%s: firmware %s is missing, cannot start.\n",
1257 dev->name, "tms380tr.bin");
1261 fw_ptr = (unsigned short *)fw_entry->data;
1262 count2 = fw_entry->size / 2;
1264 /* Hardware adapter reset */
1265 SIFWRITEW(ACL_ARESET, SIFACL);
1268 c = SIFREADW(SIFACL);
1271 if(dev->dma == 0) /* For PCI adapters */
1273 c &= ~(ACL_NSELOUT0 | ACL_NSELOUT1); /* Clear bits */
1275 c |= (*tp->setnselout)(dev);
1278 /* In case a command is pending - forget it */
1281 c &= ~ACL_ARESET; /* Clear adapter reset bit */
1282 c |= ACL_CPHALT; /* Halt adapter CPU, allow download */
1285 c &= ~ACL_PSDMAEN; /* Clear pseudo dma bit */
1286 SIFWRITEW(c, SIFACL);
1290 /* Download firmware via DIO interface: */
1292 if (count2 < 3) continue;
1294 /* Download first address part */
1295 SIFWRITEW(*fw_ptr, SIFADX);
1298 /* Download second address part */
1299 SIFWRITEW(*fw_ptr, SIFADD);
1303 if((count = *fw_ptr) != 0) /* Load loop counter */
1305 fw_ptr++; /* Download block data */
1307 if (count > count2) continue;
1309 for(; count > 0; count--)
1311 SIFWRITEW(*fw_ptr, SIFINC);
1316 else /* Stop, if last block downloaded */
1318 c = SIFREADW(SIFACL);
1319 c &= (~ACL_CPHALT | ACL_SINTEN);
1321 /* Clear CPHALT and start BUD */
1322 SIFWRITEW(c, SIFACL);
1323 release_firmware(fw_entry);
1326 } while(count == 0);
1328 release_firmware(fw_entry);
1329 printk(KERN_INFO "%s: Adapter Download Failed\n", dev->name);
1333 MODULE_FIRMWARE("tms380tr.bin");
1336 * Starts bring up diagnostics of token ring adapter and evaluates
1337 * diagnostic results.
1339 static int tms380tr_bringup_diags(struct net_device *dev)
1341 int loop_cnt, retry_cnt;
1342 unsigned short Status;
1344 tms380tr_wait(HALF_SECOND);
1345 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1346 tms380tr_wait(HALF_SECOND);
1348 retry_cnt = BUD_MAX_RETRIES; /* maximal number of retrys */
1352 if(tms380tr_debug > 3)
1353 printk(KERN_DEBUG "BUD-Status: ");
1354 loop_cnt = BUD_MAX_LOOPCNT; /* maximum: three seconds*/
1355 do { /* Inspect BUD results */
1357 tms380tr_wait(HALF_SECOND);
1358 Status = SIFREADW(SIFSTS);
1361 if(tms380tr_debug > 3)
1362 printk(KERN_DEBUG " %04X\n", Status);
1363 /* BUD successfully completed */
1364 if(Status == STS_INITIALIZE)
1366 /* Unrecoverable hardware error, BUD not completed? */
1367 } while((loop_cnt > 0) && ((Status & (STS_ERROR | STS_TEST))
1368 != (STS_ERROR | STS_TEST)));
1370 /* Error preventing completion of BUD */
1373 printk(KERN_INFO "%s: Adapter Software Reset.\n",
1375 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1376 tms380tr_wait(HALF_SECOND);
1378 } while(retry_cnt > 0);
1380 Status = SIFREADW(SIFSTS);
1382 printk(KERN_INFO "%s: Hardware error\n", dev->name);
1383 /* Hardware error occurred! */
1385 if (Status & 0x0010)
1386 printk(KERN_INFO "%s: BUD Error: Timeout\n", dev->name);
1387 else if ((Status & 0x000f) > 6)
1388 printk(KERN_INFO "%s: BUD Error: Illegal Failure\n", dev->name);
1390 printk(KERN_INFO "%s: Bring Up Diagnostics Error (%04X) occurred\n", dev->name, Status & 0x000f);
1396 * Copy initialisation data to adapter memory, beginning at address
1397 * 1:0A00; Starting DMA test and evaluating result bits.
1399 static int tms380tr_init_adapter(struct net_device *dev)
1401 struct net_local *tp = netdev_priv(dev);
1403 const unsigned char SCB_Test[6] = {0x00, 0x00, 0xC1, 0xE2, 0xD4, 0x8B};
1404 const unsigned char SSB_Test[8] = {0xFF, 0xFF, 0xD1, 0xD7,
1405 0xC5, 0xD9, 0xC3, 0xD4};
1406 void *ptr = (void *)&tp->ipb;
1407 unsigned short *ipb_ptr = (unsigned short *)ptr;
1408 unsigned char *cb_ptr = (unsigned char *) &tp->scb;
1409 unsigned char *sb_ptr = (unsigned char *) &tp->ssb;
1410 unsigned short Status;
1411 int i, loop_cnt, retry_cnt;
1413 /* Normalize: byte order low/high, word order high/low! (only IPB!) */
1414 tp->ipb.SCB_Addr = SWAPW(((char *)&tp->scb - (char *)tp) + tp->dmabuffer);
1415 tp->ipb.SSB_Addr = SWAPW(((char *)&tp->ssb - (char *)tp) + tp->dmabuffer);
1417 if(tms380tr_debug > 3)
1419 printk(KERN_DEBUG "%s: buffer (real): %lx\n", dev->name, (long) &tp->scb);
1420 printk(KERN_DEBUG "%s: buffer (virt): %lx\n", dev->name, (long) ((char *)&tp->scb - (char *)tp) + (long) tp->dmabuffer);
1421 printk(KERN_DEBUG "%s: buffer (DMA) : %lx\n", dev->name, (long) tp->dmabuffer);
1422 printk(KERN_DEBUG "%s: buffer (tp) : %lx\n", dev->name, (long) tp);
1424 /* Maximum: three initialization retries */
1425 retry_cnt = INIT_MAX_RETRIES;
1430 /* Transfer initialization block */
1431 SIFWRITEW(0x0001, SIFADX);
1433 /* To address 0001:0A00 of adapter RAM */
1434 SIFWRITEW(0x0A00, SIFADD);
1436 /* Write 11 words to adapter RAM */
1437 for(i = 0; i < 11; i++)
1438 SIFWRITEW(ipb_ptr[i], SIFINC);
1440 /* Execute SCB adapter command */
1441 tms380tr_exec_sifcmd(dev, CMD_EXECUTE);
1443 loop_cnt = INIT_MAX_LOOPCNT; /* Maximum: 11 seconds */
1445 /* While remaining retries, no error and not completed */
1449 tms380tr_wait(HALF_SECOND);
1451 /* Mask interesting status bits */
1452 Status = SIFREADW(SIFSTS);
1454 } while(((Status &(STS_INITIALIZE | STS_ERROR | STS_TEST)) != 0) &&
1455 ((Status & STS_ERROR) == 0) && (loop_cnt != 0));
1457 if((Status & (STS_INITIALIZE | STS_ERROR | STS_TEST)) == 0)
1459 /* Initialization completed without error */
1461 do { /* Test if contents of SCB is valid */
1462 if(SCB_Test[i] != *(cb_ptr + i))
1464 printk(KERN_INFO "%s: DMA failed\n", dev->name);
1465 /* DMA data error: wrong data in SCB */
1472 do { /* Test if contents of SSB is valid */
1473 if(SSB_Test[i] != *(sb_ptr + i))
1474 /* DMA data error: wrong data in SSB */
1479 return 1; /* Adapter successfully initialized */
1483 if((Status & STS_ERROR) != 0)
1485 /* Initialization error occurred */
1486 Status = SIFREADW(SIFSTS);
1487 Status &= STS_ERROR_MASK;
1488 /* ShowInitialisationErrorCode(Status); */
1489 printk(KERN_INFO "%s: Status error: %d\n", dev->name, Status);
1490 return -1; /* Unrecoverable error */
1496 /* Reset adapter and try init again */
1497 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1498 tms380tr_wait(HALF_SECOND);
1502 } while(retry_cnt > 0);
1504 printk(KERN_INFO "%s: Retry exceeded\n", dev->name);
1509 * Check for outstanding commands in command queue and tries to execute
1510 * command immediately. Corresponding command flag in command queue is cleared.
1512 static void tms380tr_chk_outstanding_cmds(struct net_device *dev)
1514 struct net_local *tp = netdev_priv(dev);
1515 unsigned long Addr = 0;
1517 if(tp->CMDqueue == 0)
1518 return; /* No command execution */
1520 /* If SCB in use: no command */
1521 if(tp->ScbInUse == 1)
1524 /* Check if adapter is opened, avoiding COMMAND_REJECT
1525 * interrupt by the adapter!
1527 if (tp->AdapterOpenFlag == 0) {
1528 if (tp->CMDqueue & OC_OPEN) {
1529 /* Execute OPEN command */
1530 tp->CMDqueue ^= OC_OPEN;
1532 Addr = htonl(((char *)&tp->ocpl - (char *)tp) + tp->dmabuffer);
1533 tp->scb.Parm[0] = LOWORD(Addr);
1534 tp->scb.Parm[1] = HIWORD(Addr);
1537 /* No OPEN command queued, but adapter closed. Note:
1538 * We'll try to re-open the adapter in DriverPoll()
1540 return; /* No adapter command issued */
1542 /* Adapter is open; evaluate command queue: try to execute
1543 * outstanding commands (depending on priority!) CLOSE
1546 if (tp->CMDqueue & OC_CLOSE) {
1547 tp->CMDqueue ^= OC_CLOSE;
1548 tp->AdapterOpenFlag = 0;
1549 tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */
1550 tp->scb.Parm[1] = 0; /* but should be set to zero! */
1551 tp->scb.CMD = CLOSE;
1552 if(!tp->HaltInProgress)
1553 tp->CMDqueue |= OC_OPEN; /* re-open adapter */
1555 tp->CMDqueue = 0; /* no more commands */
1556 } else if (tp->CMDqueue & OC_RECEIVE) {
1557 tp->CMDqueue ^= OC_RECEIVE;
1558 Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer);
1559 tp->scb.Parm[0] = LOWORD(Addr);
1560 tp->scb.Parm[1] = HIWORD(Addr);
1561 tp->scb.CMD = RECEIVE;
1562 } else if (tp->CMDqueue & OC_TRANSMIT_HALT) {
1563 /* NOTE: TRANSMIT.HALT must be checked
1566 tp->CMDqueue ^= OC_TRANSMIT_HALT;
1567 tp->scb.CMD = TRANSMIT_HALT;
1569 /* Parm[0] and Parm[1] are ignored
1570 * but should be set to zero!
1572 tp->scb.Parm[0] = 0;
1573 tp->scb.Parm[1] = 0;
1574 } else if (tp->CMDqueue & OC_TRANSMIT) {
1575 /* NOTE: TRANSMIT must be
1576 * checked after TRANSMIT.HALT
1578 if (tp->TransmitCommandActive) {
1579 if (!tp->TransmitHaltScheduled) {
1580 tp->TransmitHaltScheduled = 1;
1581 tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT);
1583 tp->TransmitCommandActive = 0;
1587 tp->CMDqueue ^= OC_TRANSMIT;
1588 tms380tr_cancel_tx_queue(tp);
1589 Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer);
1590 tp->scb.Parm[0] = LOWORD(Addr);
1591 tp->scb.Parm[1] = HIWORD(Addr);
1592 tp->scb.CMD = TRANSMIT;
1593 tp->TransmitCommandActive = 1;
1594 } else if (tp->CMDqueue & OC_MODIFY_OPEN_PARMS) {
1595 tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS;
1596 tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/
1597 tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION;
1598 tp->scb.Parm[1] = 0; /* is ignored but should be zero */
1599 tp->scb.CMD = MODIFY_OPEN_PARMS;
1600 } else if (tp->CMDqueue & OC_SET_FUNCT_ADDR) {
1601 tp->CMDqueue ^= OC_SET_FUNCT_ADDR;
1602 tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr);
1603 tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr);
1604 tp->scb.CMD = SET_FUNCT_ADDR;
1605 } else if (tp->CMDqueue & OC_SET_GROUP_ADDR) {
1606 tp->CMDqueue ^= OC_SET_GROUP_ADDR;
1607 tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr);
1608 tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr);
1609 tp->scb.CMD = SET_GROUP_ADDR;
1610 } else if (tp->CMDqueue & OC_READ_ERROR_LOG) {
1611 tp->CMDqueue ^= OC_READ_ERROR_LOG;
1612 Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer);
1613 tp->scb.Parm[0] = LOWORD(Addr);
1614 tp->scb.Parm[1] = HIWORD(Addr);
1615 tp->scb.CMD = READ_ERROR_LOG;
1617 printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n");
1623 tp->ScbInUse = 1; /* Set semaphore: SCB in use. */
1625 /* Execute SCB and generate IRQ when done. */
1626 tms380tr_exec_sifcmd(dev, CMD_EXECUTE | CMD_SCB_REQUEST);
1630 * IRQ conditions: signal loss on the ring, transmit or receive of beacon
1631 * frames (disabled if bit 1 of OPEN option is set); report error MAC
1632 * frame transmit (disabled if bit 2 of OPEN option is set); open or short
1633 * circuit fault on the lobe is detected; remove MAC frame received;
1634 * error counter overflow (255); opened adapter is the only station in ring.
1635 * After some of the IRQs the adapter is closed!
1637 static void tms380tr_ring_status_irq(struct net_device *dev)
1639 struct net_local *tp = netdev_priv(dev);
1641 tp->CurrentRingStatus = be16_to_cpu((unsigned short)tp->ssb.Parm[0]);
1643 /* First: fill up statistics */
1644 if(tp->ssb.Parm[0] & SIGNAL_LOSS)
1646 printk(KERN_INFO "%s: Signal Loss\n", dev->name);
1647 tp->MacStat.line_errors++;
1650 /* Adapter is closed, but initialized */
1651 if(tp->ssb.Parm[0] & LOBE_WIRE_FAULT)
1653 printk(KERN_INFO "%s: Lobe Wire Fault, Reopen Adapter\n",
1655 tp->MacStat.line_errors++;
1658 if(tp->ssb.Parm[0] & RING_RECOVERY)
1659 printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
1661 /* Counter overflow: read error log */
1662 if(tp->ssb.Parm[0] & COUNTER_OVERFLOW)
1664 printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
1665 tms380tr_exec_cmd(dev, OC_READ_ERROR_LOG);
1668 /* Adapter is closed, but initialized */
1669 if(tp->ssb.Parm[0] & REMOVE_RECEIVED)
1670 printk(KERN_INFO "%s: Remove Received, Reopen Adapter\n",
1673 /* Adapter is closed, but initialized */
1674 if(tp->ssb.Parm[0] & AUTO_REMOVAL_ERROR)
1675 printk(KERN_INFO "%s: Auto Removal Error, Reopen Adapter\n",
1678 if(tp->ssb.Parm[0] & HARD_ERROR)
1679 printk(KERN_INFO "%s: Hard Error\n", dev->name);
1681 if(tp->ssb.Parm[0] & SOFT_ERROR)
1682 printk(KERN_INFO "%s: Soft Error\n", dev->name);
1684 if(tp->ssb.Parm[0] & TRANSMIT_BEACON)
1685 printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
1687 if(tp->ssb.Parm[0] & SINGLE_STATION)
1688 printk(KERN_INFO "%s: Single Station\n", dev->name);
1690 /* Check if adapter has been closed */
1691 if(tp->ssb.Parm[0] & ADAPTER_CLOSED)
1693 printk(KERN_INFO "%s: Adapter closed (Reopening),"
1694 "CurrentRingStat %x\n",
1695 dev->name, tp->CurrentRingStatus);
1696 tp->AdapterOpenFlag = 0;
1697 tms380tr_open_adapter(dev);
1702 * Issued if adapter has encountered an unrecoverable hardware
1703 * or software error.
1705 static void tms380tr_chk_irq(struct net_device *dev)
1708 unsigned short AdapterCheckBlock[4];
1709 struct net_local *tp = netdev_priv(dev);
1711 tp->AdapterOpenFlag = 0; /* Adapter closed now */
1713 /* Page number of adapter memory */
1714 SIFWRITEW(0x0001, SIFADX);
1715 /* Address offset */
1716 SIFWRITEW(CHECKADDR, SIFADR);
1718 /* Reading 8 byte adapter check block. */
1719 for(i = 0; i < 4; i++)
1720 AdapterCheckBlock[i] = SIFREADW(SIFINC);
1722 if(tms380tr_debug > 3)
1724 printk(KERN_DEBUG "%s: AdapterCheckBlock: ", dev->name);
1725 for (i = 0; i < 4; i++)
1726 printk("%04X", AdapterCheckBlock[i]);
1730 switch(AdapterCheckBlock[0])
1733 printk(KERN_INFO "%s: DIO parity error\n", dev->name);
1736 case DMA_READ_ABORT:
1737 printk(KERN_INFO "%s DMA read operation aborted:\n",
1739 switch (AdapterCheckBlock[1])
1742 printk(KERN_INFO "Timeout\n");
1743 printk(KERN_INFO "Address: %04X %04X\n",
1744 AdapterCheckBlock[2],
1745 AdapterCheckBlock[3]);
1749 printk(KERN_INFO "Parity error\n");
1750 printk(KERN_INFO "Address: %04X %04X\n",
1751 AdapterCheckBlock[2],
1752 AdapterCheckBlock[3]);
1756 printk(KERN_INFO "Bus error\n");
1757 printk(KERN_INFO "Address: %04X %04X\n",
1758 AdapterCheckBlock[2],
1759 AdapterCheckBlock[3]);
1763 printk(KERN_INFO "Unknown error.\n");
1768 case DMA_WRITE_ABORT:
1769 printk(KERN_INFO "%s: DMA write operation aborted:\n",
1771 switch (AdapterCheckBlock[1])
1774 printk(KERN_INFO "Timeout\n");
1775 printk(KERN_INFO "Address: %04X %04X\n",
1776 AdapterCheckBlock[2],
1777 AdapterCheckBlock[3]);
1781 printk(KERN_INFO "Parity error\n");
1782 printk(KERN_INFO "Address: %04X %04X\n",
1783 AdapterCheckBlock[2],
1784 AdapterCheckBlock[3]);
1788 printk(KERN_INFO "Bus error\n");
1789 printk(KERN_INFO "Address: %04X %04X\n",
1790 AdapterCheckBlock[2],
1791 AdapterCheckBlock[3]);
1795 printk(KERN_INFO "Unknown error.\n");
1800 case ILLEGAL_OP_CODE:
1801 printk(KERN_INFO "%s: Illegal operation code in firmware\n",
1803 /* Parm[0-3]: adapter internal register R13-R15 */
1807 printk(KERN_INFO "%s: Adapter internal bus parity error\n",
1809 /* Parm[0-3]: adapter internal register R13-R15 */
1812 case RAM_DATA_ERROR:
1813 printk(KERN_INFO "%s: RAM data error\n", dev->name);
1814 /* Parm[0-1]: MSW/LSW address of RAM location. */
1817 case RAM_PARITY_ERROR:
1818 printk(KERN_INFO "%s: RAM parity error\n", dev->name);
1819 /* Parm[0-1]: MSW/LSW address of RAM location. */
1823 printk(KERN_INFO "%s: Internal DMA underrun detected\n",
1828 printk(KERN_INFO "%s: Unrecognized interrupt detected\n",
1830 /* Parm[0-3]: adapter internal register R13-R15 */
1833 case INVALID_ERROR_IRQ:
1834 printk(KERN_INFO "%s: Unrecognized error interrupt detected\n",
1836 /* Parm[0-3]: adapter internal register R13-R15 */
1840 printk(KERN_INFO "%s: Unrecognized XOP request detected\n",
1842 /* Parm[0-3]: adapter internal register R13-R15 */
1846 printk(KERN_INFO "%s: Unknown status", dev->name);
1850 if(tms380tr_chipset_init(dev) == 1)
1852 /* Restart of firmware successful */
1853 tp->AdapterOpenFlag = 1;
1858 * Internal adapter pointer to RAM data are copied from adapter into
1861 static int tms380tr_read_ptr(struct net_device *dev)
1863 struct net_local *tp = netdev_priv(dev);
1864 unsigned short adapterram;
1866 tms380tr_read_ram(dev, (unsigned char *)&tp->intptrs.BurnedInAddrPtr,
1867 ADAPTER_INT_PTRS, 16);
1868 tms380tr_read_ram(dev, (unsigned char *)&adapterram,
1869 cpu_to_be16((unsigned short)tp->intptrs.AdapterRAMPtr), 2);
1870 return be16_to_cpu(adapterram);
1874 * Reads a number of bytes from adapter to system memory.
1876 static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
1877 unsigned short Address, int Length)
1880 unsigned short old_sifadx, old_sifadr, InWord;
1882 /* Save the current values */
1883 old_sifadx = SIFREADW(SIFADX);
1884 old_sifadr = SIFREADW(SIFADR);
1886 /* Page number of adapter memory */
1887 SIFWRITEW(0x0001, SIFADX);
1888 /* Address offset in adapter RAM */
1889 SIFWRITEW(Address, SIFADR);
1891 /* Copy len byte from adapter memory to system data area. */
1895 InWord = SIFREADW(SIFINC);
1897 *(Data + i) = HIBYTE(InWord); /* Write first byte */
1898 if(++i == Length) /* All is done break */
1901 *(Data + i) = LOBYTE(InWord); /* Write second byte */
1902 if (++i == Length) /* All is done break */
1906 /* Restore original values */
1907 SIFWRITEW(old_sifadx, SIFADX);
1908 SIFWRITEW(old_sifadr, SIFADR);
1912 * Cancel all queued packets in the transmission queue.
1914 static void tms380tr_cancel_tx_queue(struct net_local* tp)
1919 * NOTE: There must not be an active TRANSMIT command pending, when
1920 * this function is called.
1922 if(tp->TransmitCommandActive)
1930 /* "Remove" TPL from busy list. */
1931 tp->TplBusy = tpl->NextTPLPtr;
1932 tms380tr_write_tpl_status(tpl, 0); /* Clear VALID bit */
1933 tpl->BusyFlag = 0; /* "free" TPL */
1935 printk(KERN_INFO "Cancel tx (%08lXh).\n", (unsigned long)tpl);
1937 dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE);
1938 dev_kfree_skb_any(tpl->Skb);
1943 * This function is called whenever a transmit interrupt is generated by the
1944 * adapter. For a command complete interrupt, it is checked if we have to
1945 * issue a new transmit command or not.
1947 static void tms380tr_tx_status_irq(struct net_device *dev)
1949 struct net_local *tp = netdev_priv(dev);
1950 unsigned char HighByte, HighAc, LowAc;
1953 /* NOTE: At this point the SSB from TRANSMIT STATUS is no longer
1954 * available, because the CLEAR SSB command has already been issued.
1956 * Process all complete transmissions.
1962 if(!tpl->BusyFlag || (tpl->Status
1963 & (TX_VALID | TX_FRAME_COMPLETE))
1964 != TX_FRAME_COMPLETE)
1969 /* "Remove" TPL from busy list. */
1970 tp->TplBusy = tpl->NextTPLPtr ;
1972 /* Check the transmit status field only for directed frames*/
1973 if(DIRECTED_FRAME(tpl) && (tpl->Status & TX_ERROR) == 0)
1975 HighByte = GET_TRANSMIT_STATUS_HIGH_BYTE(tpl->Status);
1976 HighAc = GET_FRAME_STATUS_HIGH_AC(HighByte);
1977 LowAc = GET_FRAME_STATUS_LOW_AC(HighByte);
1979 if((HighAc != LowAc) || (HighAc == AC_NOT_RECOGNIZED))
1981 printk(KERN_DEBUG "%s: (DA=%08lX not recognized)\n",
1983 *(unsigned long *)&tpl->MData[2+2]);
1987 if(tms380tr_debug > 3)
1988 printk(KERN_DEBUG "%s: Directed frame tx'd\n",
1994 if(!DIRECTED_FRAME(tpl))
1996 if(tms380tr_debug > 3)
1997 printk(KERN_DEBUG "%s: Broadcast frame tx'd\n",
2002 tp->MacStat.tx_packets++;
2004 dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE);
2005 dev_kfree_skb_irq(tpl->Skb);
2006 tpl->BusyFlag = 0; /* "free" TPL */
2009 if(!tp->TplFree->NextTPLPtr->BusyFlag)
2010 netif_wake_queue(dev);
2014 * Called if a frame receive interrupt is generated by the adapter.
2015 * Check if the frame is valid and indicate it to system.
2017 static void tms380tr_rcv_status_irq(struct net_device *dev)
2019 struct net_local *tp = netdev_priv(dev);
2020 unsigned char *ReceiveDataPtr;
2021 struct sk_buff *skb;
2022 unsigned int Length, Length2;
2027 /* NOTE: At this point the SSB from RECEIVE STATUS is no longer
2028 * available, because the CLEAR SSB command has already been issued.
2030 * Process all complete receives.
2036 if(rpl->Status & RX_VALID)
2037 break; /* RPL still in use by adapter */
2039 /* Forward RPLHead pointer to next list. */
2040 SaveHead = tp->RplHead;
2041 tp->RplHead = rpl->NextRPLPtr;
2043 /* Get the frame size (Byte swap for Intel).
2044 * Do this early (see workaround comment below)
2046 Length = be16_to_cpu(rpl->FrameSize);
2048 /* Check if the Frame_Start, Frame_End and
2049 * Frame_Complete bits are set.
2051 if((rpl->Status & VALID_SINGLE_BUFFER_FRAME)
2052 == VALID_SINGLE_BUFFER_FRAME)
2054 ReceiveDataPtr = rpl->MData;
2056 /* Workaround for delayed write of FrameSize on ISA
2057 * (FrameSize is false but valid-bit is reset)
2058 * Frame size is set to zero when the RPL is freed.
2059 * Length2 is there because there have also been
2060 * cases where the FrameSize was partially written
2062 Length2 = be16_to_cpu(rpl->FrameSize);
2064 if(Length == 0 || Length != Length2)
2066 tp->RplHead = SaveHead;
2067 break; /* Return to tms380tr_interrupt */
2069 tms380tr_update_rcv_stats(tp,ReceiveDataPtr,Length);
2071 if(tms380tr_debug > 3)
2072 printk(KERN_DEBUG "%s: Packet Length %04X (%d)\n",
2073 dev->name, Length, Length);
2075 /* Indicate the received frame to system the
2076 * adapter does the Source-Routing padding for
2077 * us. See: OpenOptions in tms380tr_init_opb()
2080 if(rpl->SkbStat == SKB_UNAVAILABLE)
2082 /* Try again to allocate skb */
2083 skb = dev_alloc_skb(tp->MaxPacketSize);
2086 /* Update Stats ?? */
2090 skb_put(skb, tp->MaxPacketSize);
2091 rpl->SkbStat = SKB_DATA_COPY;
2092 ReceiveDataPtr = rpl->MData;
2096 if(skb && (rpl->SkbStat == SKB_DATA_COPY ||
2097 rpl->SkbStat == SKB_DMA_DIRECT))
2099 if(rpl->SkbStat == SKB_DATA_COPY)
2100 skb_copy_to_linear_data(skb, ReceiveDataPtr,
2103 /* Deliver frame to system */
2105 skb_trim(skb,Length);
2106 skb->protocol = tr_type_trans(skb,dev);
2110 else /* Invalid frame */
2112 if(rpl->Skb != NULL)
2113 dev_kfree_skb_irq(rpl->Skb);
2116 if(rpl->Status & RX_START_FRAME)
2117 /* Frame start bit is set -> overflow. */
2118 tp->MacStat.rx_errors++;
2121 dma_unmap_single(tp->pdev, rpl->DMABuff, tp->MaxPacketSize, DMA_TO_DEVICE);
2124 /* Allocate new skb for rpl */
2125 rpl->Skb = dev_alloc_skb(tp->MaxPacketSize);
2126 /* skb == NULL ? then use local buffer */
2127 if(rpl->Skb == NULL)
2129 rpl->SkbStat = SKB_UNAVAILABLE;
2130 rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
2131 rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
2133 else /* skb != NULL */
2135 rpl->Skb->dev = dev;
2136 skb_put(rpl->Skb, tp->MaxPacketSize);
2138 /* Data unreachable for DMA ? then use local buffer */
2139 dmabuf = dma_map_single(tp->pdev, rpl->Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE);
2140 if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
2142 rpl->SkbStat = SKB_DATA_COPY;
2143 rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
2144 rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
2148 /* DMA directly in skb->data */
2149 rpl->SkbStat = SKB_DMA_DIRECT;
2150 rpl->FragList[0].DataAddr = htonl(dmabuf);
2151 rpl->MData = rpl->Skb->data;
2152 rpl->DMABuff = dmabuf;
2156 rpl->FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
2159 /* Pass the last RPL back to the adapter */
2160 tp->RplTail->FrameSize = 0;
2162 /* Reset the CSTAT field in the list. */
2163 tms380tr_write_rpl_status(tp->RplTail, RX_VALID | RX_FRAME_IRQ);
2165 /* Current RPL becomes last one in list. */
2166 tp->RplTail = tp->RplTail->NextRPLPtr;
2168 /* Inform adapter about RPL valid. */
2169 tms380tr_exec_sifcmd(dev, CMD_RX_VALID);
2174 * This function should be used whenever the status of any RPL must be
2175 * modified by the driver, because the compiler may otherwise change the
2176 * order of instructions such that writing the RPL status may be executed
2177 * at an undesirable time. When this function is used, the status is
2178 * always written when the function is called.
2180 static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status)
2182 rpl->Status = Status;
2186 * The function updates the statistic counters in mac->MacStat.
2187 * It differtiates between directed and broadcast/multicast ( ==functional)
2190 static void tms380tr_update_rcv_stats(struct net_local *tp, unsigned char DataPtr[],
2191 unsigned int Length)
2193 tp->MacStat.rx_packets++;
2194 tp->MacStat.rx_bytes += Length;
2196 /* Test functional bit */
2197 if(DataPtr[2] & GROUP_BIT)
2198 tp->MacStat.multicast++;
2201 static int tms380tr_set_mac_address(struct net_device *dev, void *addr)
2203 struct net_local *tp = netdev_priv(dev);
2204 struct sockaddr *saddr = addr;
2206 if (tp->AdapterOpenFlag || tp->AdapterVirtOpenFlag) {
2207 printk(KERN_WARNING "%s: Cannot set MAC/LAA address while card is open\n", dev->name);
2210 memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len);
2214 #if TMS380TR_DEBUG > 0
2216 * Dump Packet (data)
2218 static void tms380tr_dump(unsigned char *Data, int length)
2222 for (i = 0, j = 0; i < length / 8; i++, j += 8)
2224 printk(KERN_DEBUG "%02x %02x %02x %02x %02x %02x %02x %02x\n",
2225 Data[j+0],Data[j+1],Data[j+2],Data[j+3],
2226 Data[j+4],Data[j+5],Data[j+6],Data[j+7]);
2231 void tmsdev_term(struct net_device *dev)
2233 struct net_local *tp;
2235 tp = netdev_priv(dev);
2236 dma_unmap_single(tp->pdev, tp->dmabuffer, sizeof(struct net_local),
2240 const struct net_device_ops tms380tr_netdev_ops = {
2241 .ndo_open = tms380tr_open,
2242 .ndo_stop = tms380tr_close,
2243 .ndo_start_xmit = tms380tr_send_packet,
2244 .ndo_tx_timeout = tms380tr_timeout,
2245 .ndo_get_stats = tms380tr_get_stats,
2246 .ndo_set_rx_mode = tms380tr_set_multicast_list,
2247 .ndo_set_mac_address = tms380tr_set_mac_address,
2249 EXPORT_SYMBOL(tms380tr_netdev_ops);
2251 int tmsdev_init(struct net_device *dev, struct device *pdev)
2253 struct net_local *tms_local;
2255 memset(netdev_priv(dev), 0, sizeof(struct net_local));
2256 tms_local = netdev_priv(dev);
2257 init_waitqueue_head(&tms_local->wait_for_tok_int);
2259 tms_local->dmalimit = *pdev->dma_mask;
2262 tms_local->pdev = pdev;
2263 tms_local->dmabuffer = dma_map_single(pdev, (void *)tms_local,
2264 sizeof(struct net_local), DMA_BIDIRECTIONAL);
2265 if (tms_local->dmabuffer + sizeof(struct net_local) >
2266 tms_local->dmalimit)
2268 printk(KERN_INFO "%s: Memory not accessible for DMA\n",
2274 dev->netdev_ops = &tms380tr_netdev_ops;
2275 dev->watchdog_timeo = HZ;
2280 EXPORT_SYMBOL(tms380tr_open);
2281 EXPORT_SYMBOL(tms380tr_close);
2282 EXPORT_SYMBOL(tms380tr_interrupt);
2283 EXPORT_SYMBOL(tmsdev_init);
2284 EXPORT_SYMBOL(tmsdev_term);
2285 EXPORT_SYMBOL(tms380tr_wait);
2289 static struct module *TMS380_module = NULL;
2291 int init_module(void)
2293 printk(KERN_DEBUG "%s", version);
2295 TMS380_module = &__this_module;
2299 void cleanup_module(void)
2301 TMS380_module = NULL;
2305 MODULE_LICENSE("GPL");