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.linux-sna.org
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>
101 #include <asm/system.h>
105 #include <asm/uaccess.h>
107 #include "tms380tr.h" /* Our Stuff */
109 /* Use 0 for production, 1 for verification, 2 for debug, and
110 * 3 for very verbose debug.
112 #ifndef TMS380TR_DEBUG
113 #define TMS380TR_DEBUG 0
115 static unsigned int tms380tr_debug = TMS380TR_DEBUG;
117 /* Index to functions, as function prototypes.
118 * Alphabetical by function name.
123 static int tms380tr_bringup_diags(struct net_device *dev);
125 static void tms380tr_cancel_tx_queue(struct net_local* tp);
126 static int tms380tr_chipset_init(struct net_device *dev);
127 static void tms380tr_chk_irq(struct net_device *dev);
128 static void tms380tr_chk_outstanding_cmds(struct net_device *dev);
129 static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr);
130 static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType);
131 int tms380tr_close(struct net_device *dev);
132 static void tms380tr_cmd_status_irq(struct net_device *dev);
134 static void tms380tr_disable_interrupts(struct net_device *dev);
135 #if TMS380TR_DEBUG > 0
136 static void tms380tr_dump(unsigned char *Data, int length);
139 static void tms380tr_enable_interrupts(struct net_device *dev);
140 static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command);
141 static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue);
144 static struct net_device_stats *tms380tr_get_stats(struct net_device *dev);
146 static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb,
147 struct net_device *dev);
149 static int tms380tr_init_adapter(struct net_device *dev);
150 static void tms380tr_init_ipb(struct net_local *tp);
151 static void tms380tr_init_net_local(struct net_device *dev);
152 static void tms380tr_init_opb(struct net_device *dev);
155 int tms380tr_open(struct net_device *dev);
156 static void tms380tr_open_adapter(struct net_device *dev);
159 static void tms380tr_rcv_status_irq(struct net_device *dev);
160 static int tms380tr_read_ptr(struct net_device *dev);
161 static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
162 unsigned short Address, int Length);
163 static int tms380tr_reset_adapter(struct net_device *dev);
164 static void tms380tr_reset_interrupt(struct net_device *dev);
165 static void tms380tr_ring_status_irq(struct net_device *dev);
167 static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb,
168 struct net_device *dev);
169 static void tms380tr_set_multicast_list(struct net_device *dev);
170 static int tms380tr_set_mac_address(struct net_device *dev, void *addr);
172 static void tms380tr_timer_chk(unsigned long data);
173 static void tms380tr_timer_end_wait(unsigned long data);
174 static void tms380tr_tx_status_irq(struct net_device *dev);
176 static void tms380tr_update_rcv_stats(struct net_local *tp,
177 unsigned char DataPtr[], unsigned int Length);
179 void tms380tr_wait(unsigned long time);
180 static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status);
181 static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status);
183 #define SIFREADB(reg) \
184 (((struct net_local *)netdev_priv(dev))->sifreadb(dev, reg))
185 #define SIFWRITEB(val, reg) \
186 (((struct net_local *)netdev_priv(dev))->sifwriteb(dev, val, reg))
187 #define SIFREADW(reg) \
188 (((struct net_local *)netdev_priv(dev))->sifreadw(dev, reg))
189 #define SIFWRITEW(val, reg) \
190 (((struct net_local *)netdev_priv(dev))->sifwritew(dev, val, reg))
194 #if 0 /* TMS380TR_DEBUG > 0 */
195 static int madgemc_sifprobe(struct net_device *dev)
197 unsigned char old, chk1, chk2;
199 old = SIFREADB(SIFADR); /* Get the old SIFADR value */
201 chk1 = 0; /* Begin with check value 0 */
203 madgemc_setregpage(dev, 0);
204 /* Write new SIFADR value */
205 SIFWRITEB(chk1, SIFADR);
206 chk2 = SIFREADB(SIFADR);
210 madgemc_setregpage(dev, 1);
211 /* Read, invert and write */
212 chk2 = SIFREADB(SIFADD);
216 madgemc_setregpage(dev, 0);
218 SIFWRITEB(chk2, SIFADR);
220 /* Read, invert and compare */
221 madgemc_setregpage(dev, 1);
222 chk2 = SIFREADB(SIFADD);
223 madgemc_setregpage(dev, 0);
227 return (-1); /* No adapter */
229 } while(chk1 != 0); /* Repeat 128 times (all byte values) */
231 madgemc_setregpage(dev, 0); /* sanity */
232 /* Restore the SIFADR value */
233 SIFWRITEB(old, SIFADR);
240 * Open/initialize the board. This is called sometime after
241 * booting when the 'ifconfig' program is run.
243 * This routine should set everything up anew at each open, even
244 * registers that "should" only need to be set once at boot, so that
245 * there is non-reboot way to recover if something goes wrong.
247 int tms380tr_open(struct net_device *dev)
249 struct net_local *tp = netdev_priv(dev);
252 /* init the spinlock */
253 spin_lock_init(&tp->lock);
254 init_timer(&tp->timer);
256 /* Reset the hardware here. Don't forget to set the station address. */
261 unsigned long flags=claim_dma_lock();
262 disable_dma(dev->dma);
263 set_dma_mode(dev->dma, DMA_MODE_CASCADE);
264 enable_dma(dev->dma);
265 release_dma_lock(flags);
269 err = tms380tr_chipset_init(dev);
272 printk(KERN_INFO "%s: Chipset initialization error\n",
277 tp->timer.expires = jiffies + 30*HZ;
278 tp->timer.function = tms380tr_timer_end_wait;
279 tp->timer.data = (unsigned long)dev;
280 add_timer(&tp->timer);
282 printk(KERN_DEBUG "%s: Adapter RAM size: %dK\n",
283 dev->name, tms380tr_read_ptr(dev));
285 tms380tr_enable_interrupts(dev);
286 tms380tr_open_adapter(dev);
288 netif_start_queue(dev);
290 /* Wait for interrupt from hardware. If interrupt does not come,
291 * there will be a timeout from the timer.
294 interruptible_sleep_on(&tp->wait_for_tok_int);
295 del_timer(&tp->timer);
297 /* If AdapterVirtOpenFlag is 1, the adapter is now open for use */
298 if(tp->AdapterVirtOpenFlag == 0)
300 tms380tr_disable_interrupts(dev);
304 tp->StartTime = jiffies;
306 /* Start function control timer */
307 tp->timer.expires = jiffies + 2*HZ;
308 tp->timer.function = tms380tr_timer_chk;
309 tp->timer.data = (unsigned long)dev;
310 add_timer(&tp->timer);
316 * Timeout function while waiting for event
318 static void tms380tr_timer_end_wait(unsigned long data)
320 struct net_device *dev = (struct net_device*)data;
321 struct net_local *tp = netdev_priv(dev);
326 wake_up_interruptible(&tp->wait_for_tok_int);
333 * Initialize the chipset
335 static int tms380tr_chipset_init(struct net_device *dev)
337 struct net_local *tp = netdev_priv(dev);
340 tms380tr_init_ipb(tp);
341 tms380tr_init_opb(dev);
342 tms380tr_init_net_local(dev);
344 if(tms380tr_debug > 3)
345 printk(KERN_DEBUG "%s: Resetting adapter...\n", dev->name);
346 err = tms380tr_reset_adapter(dev);
350 if(tms380tr_debug > 3)
351 printk(KERN_DEBUG "%s: Bringup diags...\n", dev->name);
352 err = tms380tr_bringup_diags(dev);
356 if(tms380tr_debug > 3)
357 printk(KERN_DEBUG "%s: Init adapter...\n", dev->name);
358 err = tms380tr_init_adapter(dev);
362 if(tms380tr_debug > 3)
363 printk(KERN_DEBUG "%s: Done!\n", dev->name);
368 * Initializes the net_local structure.
370 static void tms380tr_init_net_local(struct net_device *dev)
372 struct net_local *tp = netdev_priv(dev);
387 tp->AdapterOpenFlag = 0;
388 tp->AdapterVirtOpenFlag = 0;
390 tp->OpenCommandIssued = 0;
391 tp->ReOpenInProgress = 0;
392 tp->HaltInProgress = 0;
393 tp->TransmitHaltScheduled = 0;
394 tp->LobeWireFaultLogged = 0;
395 tp->LastOpenStatus = 0;
396 tp->MaxPacketSize = DEFAULT_PACKET_SIZE;
398 /* Create circular chain of transmit lists */
399 for (i = 0; i < TPL_NUM; i++)
401 tp->Tpl[i].NextTPLAddr = htonl(((char *)(&tp->Tpl[(i+1) % TPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
402 tp->Tpl[i].Status = 0;
403 tp->Tpl[i].FrameSize = 0;
404 tp->Tpl[i].FragList[0].DataCount = 0;
405 tp->Tpl[i].FragList[0].DataAddr = 0;
406 tp->Tpl[i].NextTPLPtr = &tp->Tpl[(i+1) % TPL_NUM];
407 tp->Tpl[i].MData = NULL;
408 tp->Tpl[i].TPLIndex = i;
409 tp->Tpl[i].DMABuff = 0;
410 tp->Tpl[i].BusyFlag = 0;
413 tp->TplFree = tp->TplBusy = &tp->Tpl[0];
415 /* Create circular chain of receive lists */
416 for (i = 0; i < RPL_NUM; i++)
418 tp->Rpl[i].NextRPLAddr = htonl(((char *)(&tp->Rpl[(i+1) % RPL_NUM]) - (char *)tp) + tp->dmabuffer); /* DMA buffer may be MMU driven */
419 tp->Rpl[i].Status = (RX_VALID | RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
420 tp->Rpl[i].FrameSize = 0;
421 tp->Rpl[i].FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
423 /* Alloc skb and point adapter to data area */
424 tp->Rpl[i].Skb = dev_alloc_skb(tp->MaxPacketSize);
425 tp->Rpl[i].DMABuff = 0;
427 /* skb == NULL ? then use local buffer */
428 if(tp->Rpl[i].Skb == NULL)
430 tp->Rpl[i].SkbStat = SKB_UNAVAILABLE;
431 tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
432 tp->Rpl[i].MData = tp->LocalRxBuffers[i];
434 else /* SKB != NULL */
436 tp->Rpl[i].Skb->dev = dev;
437 skb_put(tp->Rpl[i].Skb, tp->MaxPacketSize);
439 /* data unreachable for DMA ? then use local buffer */
440 dmabuf = dma_map_single(tp->pdev, tp->Rpl[i].Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE);
441 if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
443 tp->Rpl[i].SkbStat = SKB_DATA_COPY;
444 tp->Rpl[i].FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[i] - (char *)tp) + tp->dmabuffer);
445 tp->Rpl[i].MData = tp->LocalRxBuffers[i];
447 else /* DMA directly in skb->data */
449 tp->Rpl[i].SkbStat = SKB_DMA_DIRECT;
450 tp->Rpl[i].FragList[0].DataAddr = htonl(dmabuf);
451 tp->Rpl[i].MData = tp->Rpl[i].Skb->data;
452 tp->Rpl[i].DMABuff = dmabuf;
456 tp->Rpl[i].NextRPLPtr = &tp->Rpl[(i+1) % RPL_NUM];
457 tp->Rpl[i].RPLIndex = i;
460 tp->RplHead = &tp->Rpl[0];
461 tp->RplTail = &tp->Rpl[RPL_NUM-1];
462 tp->RplTail->Status = (RX_START_FRAME | RX_END_FRAME | RX_FRAME_IRQ);
468 * Initializes the initialisation parameter block.
470 static void tms380tr_init_ipb(struct net_local *tp)
472 tp->ipb.Init_Options = BURST_MODE;
473 tp->ipb.CMD_Status_IV = 0;
476 tp->ipb.Ring_Status_IV = 0;
477 tp->ipb.SCB_Clear_IV = 0;
478 tp->ipb.Adapter_CHK_IV = 0;
479 tp->ipb.RX_Burst_Size = BURST_SIZE;
480 tp->ipb.TX_Burst_Size = BURST_SIZE;
481 tp->ipb.DMA_Abort_Thrhld = DMA_RETRIES;
482 tp->ipb.SCB_Addr = 0;
483 tp->ipb.SSB_Addr = 0;
489 * Initializes the open parameter block.
491 static void tms380tr_init_opb(struct net_device *dev)
493 struct net_local *tp;
495 unsigned short RplSize = RPL_SIZE;
496 unsigned short TplSize = TPL_SIZE;
497 unsigned short BufferSize = BUFFER_SIZE;
500 tp = netdev_priv(dev);
502 tp->ocpl.OPENOptions = 0;
503 tp->ocpl.OPENOptions |= ENABLE_FULL_DUPLEX_SELECTION;
504 tp->ocpl.FullDuplex = 0;
505 tp->ocpl.FullDuplex |= OPEN_FULL_DUPLEX_OFF;
510 * We go ahead and put it in the OPB even though on
511 * most of the generic adapters this isn't required.
512 * Its simpler this way. -- ASF
515 tp->ocpl.NodeAddr[i] = ((unsigned char *)dev->dev_addr)[i];
517 tp->ocpl.GroupAddr = 0;
518 tp->ocpl.FunctAddr = 0;
519 tp->ocpl.RxListSize = cpu_to_be16((unsigned short)RplSize);
520 tp->ocpl.TxListSize = cpu_to_be16((unsigned short)TplSize);
521 tp->ocpl.BufSize = cpu_to_be16((unsigned short)BufferSize);
522 tp->ocpl.Reserved = 0;
523 tp->ocpl.TXBufMin = TX_BUF_MIN;
524 tp->ocpl.TXBufMax = TX_BUF_MAX;
526 Addr = htonl(((char *)tp->ProductID - (char *)tp) + tp->dmabuffer);
528 tp->ocpl.ProdIDAddr[0] = LOWORD(Addr);
529 tp->ocpl.ProdIDAddr[1] = HIWORD(Addr);
535 * Send OPEN command to adapter
537 static void tms380tr_open_adapter(struct net_device *dev)
539 struct net_local *tp = netdev_priv(dev);
541 if(tp->OpenCommandIssued)
544 tp->OpenCommandIssued = 1;
545 tms380tr_exec_cmd(dev, OC_OPEN);
551 * Clear the adapter's interrupt flag. Clear system interrupt enable
552 * (SINTEN): disable adapter to system interrupts.
554 static void tms380tr_disable_interrupts(struct net_device *dev)
556 SIFWRITEB(0, SIFACL);
562 * Set the adapter's interrupt flag. Set system interrupt enable
563 * (SINTEN): enable adapter to system interrupts.
565 static void tms380tr_enable_interrupts(struct net_device *dev)
567 SIFWRITEB(ACL_SINTEN, SIFACL);
573 * Put command in command queue, try to execute it.
575 static void tms380tr_exec_cmd(struct net_device *dev, unsigned short Command)
577 struct net_local *tp = netdev_priv(dev);
579 tp->CMDqueue |= Command;
580 tms380tr_chk_outstanding_cmds(dev);
585 static void tms380tr_timeout(struct net_device *dev)
588 * If we get here, some higher level has decided we are broken.
589 * There should really be a "kick me" function call instead.
591 * Resetting the token ring adapter takes a long time so just
592 * fake transmission time and go on trying. Our own timeout
593 * routine is in tms380tr_timer_chk()
595 dev->trans_start = jiffies;
596 netif_wake_queue(dev);
600 * Gets skb from system, queues it and checks if it can be sent
602 static netdev_tx_t tms380tr_send_packet(struct sk_buff *skb,
603 struct net_device *dev)
605 struct net_local *tp = netdev_priv(dev);
608 rc = tms380tr_hardware_send_packet(skb, dev);
609 if(tp->TplFree->NextTPLPtr->BusyFlag)
610 netif_stop_queue(dev);
615 * Move frames into adapter tx queue
617 static netdev_tx_t tms380tr_hardware_send_packet(struct sk_buff *skb,
618 struct net_device *dev)
625 dma_addr_t dmabuf, newbuf;
626 struct net_local *tp = netdev_priv(dev);
628 /* Try to get a free TPL from the chain.
630 * NOTE: We *must* always leave one unused TPL in the chain,
631 * because otherwise the adapter might send frames twice.
633 spin_lock_irqsave(&tp->lock, flags);
634 if(tp->TplFree->NextTPLPtr->BusyFlag) { /* No free TPL */
635 if (tms380tr_debug > 0)
636 printk(KERN_DEBUG "%s: No free TPL\n", dev->name);
637 spin_unlock_irqrestore(&tp->lock, flags);
638 return NETDEV_TX_BUSY;
643 /* Is buffer reachable for Busmaster-DMA? */
646 dmabuf = dma_map_single(tp->pdev, skb->data, length, DMA_TO_DEVICE);
647 if(tp->dmalimit && (dmabuf + length > tp->dmalimit)) {
648 /* Copy frame to local buffer */
649 dma_unmap_single(tp->pdev, dmabuf, length, DMA_TO_DEVICE);
651 i = tp->TplFree->TPLIndex;
652 buf = tp->LocalTxBuffers[i];
653 skb_copy_from_linear_data(skb, buf, length);
654 newbuf = ((char *)buf - (char *)tp) + tp->dmabuffer;
657 /* Send direct from skb->data */
661 /* Source address in packet? */
662 tms380tr_chk_src_addr(buf, dev->dev_addr);
663 tp->LastSendTime = jiffies;
664 tpl = tp->TplFree; /* Get the "free" TPL */
665 tpl->BusyFlag = 1; /* Mark TPL as busy */
666 tp->TplFree = tpl->NextTPLPtr;
668 /* Save the skb for delayed return of skb to system */
670 tpl->DMABuff = dmabuf;
671 tpl->FragList[0].DataCount = cpu_to_be16((unsigned short)length);
672 tpl->FragList[0].DataAddr = htonl(newbuf);
674 /* Write the data length in the transmit list. */
675 tpl->FrameSize = cpu_to_be16((unsigned short)length);
678 /* Transmit the frame and set the status values. */
679 tms380tr_write_tpl_status(tpl, TX_VALID | TX_START_FRAME
680 | TX_END_FRAME | TX_PASS_SRC_ADDR
683 /* Let adapter send the frame. */
684 tms380tr_exec_sifcmd(dev, CMD_TX_VALID);
685 spin_unlock_irqrestore(&tp->lock, flags);
691 * Write the given value to the 'Status' field of the specified TPL.
692 * NOTE: This function should be used whenever the status of any TPL must be
693 * modified by the driver, because the compiler may otherwise change the
694 * order of instructions such that writing the TPL status may be executed at
695 * an undesirable time. When this function is used, the status is always
696 * written when the function is called.
698 static void tms380tr_write_tpl_status(TPL *tpl, unsigned int Status)
700 tpl->Status = Status;
703 static void tms380tr_chk_src_addr(unsigned char *frame, unsigned char *hw_addr)
707 if((((unsigned long)frame[8]) & ~0x80) != 0) /* Compare 4 bytes */
709 if((unsigned short)frame[12] != 0) /* Compare 2 bytes */
712 SRBit = frame[8] & 0x80;
713 memcpy(&frame[8], hw_addr, 6);
720 * The timer routine: Check if adapter still open and working, reopen if not.
722 static void tms380tr_timer_chk(unsigned long data)
724 struct net_device *dev = (struct net_device*)data;
725 struct net_local *tp = netdev_priv(dev);
727 if(tp->HaltInProgress)
730 tms380tr_chk_outstanding_cmds(dev);
731 if(time_before(tp->LastSendTime + SEND_TIMEOUT, jiffies) &&
732 (tp->TplFree != tp->TplBusy))
734 /* Anything to send, but stalled too long */
735 tp->LastSendTime = jiffies;
736 tms380tr_exec_cmd(dev, OC_CLOSE); /* Does reopen automatically */
739 tp->timer.expires = jiffies + 2*HZ;
740 add_timer(&tp->timer);
742 if(tp->AdapterOpenFlag || tp->ReOpenInProgress)
744 tp->ReOpenInProgress = 1;
745 tms380tr_open_adapter(dev);
751 * The typical workload of the driver: Handle the network interface interrupts.
753 irqreturn_t tms380tr_interrupt(int irq, void *dev_id)
755 struct net_device *dev = dev_id;
756 struct net_local *tp;
757 unsigned short irq_type;
760 tp = netdev_priv(dev);
762 irq_type = SIFREADW(SIFSTS);
764 while(irq_type & STS_SYSTEM_IRQ) {
766 irq_type &= STS_IRQ_MASK;
768 if(!tms380tr_chk_ssb(tp, irq_type)) {
769 printk(KERN_DEBUG "%s: DATA LATE occurred\n", dev->name);
774 case STS_IRQ_RECEIVE_STATUS:
775 tms380tr_reset_interrupt(dev);
776 tms380tr_rcv_status_irq(dev);
779 case STS_IRQ_TRANSMIT_STATUS:
780 /* Check if TRANSMIT.HALT command is complete */
781 if(tp->ssb.Parm[0] & COMMAND_COMPLETE) {
782 tp->TransmitCommandActive = 0;
783 tp->TransmitHaltScheduled = 0;
785 /* Issue a new transmit command. */
786 tms380tr_exec_cmd(dev, OC_TRANSMIT);
789 tms380tr_reset_interrupt(dev);
790 tms380tr_tx_status_irq(dev);
793 case STS_IRQ_COMMAND_STATUS:
794 /* The SSB contains status of last command
795 * other than receive/transmit.
797 tms380tr_cmd_status_irq(dev);
800 case STS_IRQ_SCB_CLEAR:
801 /* The SCB is free for another command. */
803 tms380tr_chk_outstanding_cmds(dev);
806 case STS_IRQ_RING_STATUS:
807 tms380tr_ring_status_irq(dev);
810 case STS_IRQ_ADAPTER_CHECK:
811 tms380tr_chk_irq(dev);
814 case STS_IRQ_LLC_STATUS:
815 printk(KERN_DEBUG "tms380tr: unexpected LLC status IRQ\n");
819 printk(KERN_DEBUG "tms380tr: unexpected Timer IRQ\n");
822 case STS_IRQ_RECEIVE_PENDING:
823 printk(KERN_DEBUG "tms380tr: unexpected Receive Pending IRQ\n");
827 printk(KERN_DEBUG "Unknown Token Ring IRQ (0x%04x)\n", irq_type);
831 /* Reset system interrupt if not already done. */
832 if(irq_type != STS_IRQ_TRANSMIT_STATUS &&
833 irq_type != STS_IRQ_RECEIVE_STATUS) {
834 tms380tr_reset_interrupt(dev);
837 irq_type = SIFREADW(SIFSTS);
840 return IRQ_RETVAL(handled);
844 * Reset the INTERRUPT SYSTEM bit and issue SSB CLEAR command.
846 static void tms380tr_reset_interrupt(struct net_device *dev)
848 struct net_local *tp = netdev_priv(dev);
852 * [Workaround for "Data Late"]
853 * Set all fields of the SSB to well-defined values so we can
854 * check if the adapter has written the SSB.
857 ssb->STS = (unsigned short) -1;
858 ssb->Parm[0] = (unsigned short) -1;
859 ssb->Parm[1] = (unsigned short) -1;
860 ssb->Parm[2] = (unsigned short) -1;
862 /* Free SSB by issuing SSB_CLEAR command after reading IRQ code
863 * and clear STS_SYSTEM_IRQ bit: enable adapter for further interrupts.
865 tms380tr_exec_sifcmd(dev, CMD_SSB_CLEAR | CMD_CLEAR_SYSTEM_IRQ);
871 * Check if the SSB has actually been written by the adapter.
873 static unsigned char tms380tr_chk_ssb(struct net_local *tp, unsigned short IrqType)
875 SSB *ssb = &tp->ssb; /* The address of the SSB. */
877 /* C 0 1 2 INTERRUPT CODE
878 * - - - - --------------
879 * 1 1 1 1 TRANSMIT STATUS
880 * 1 1 1 1 RECEIVE STATUS
881 * 1 ? ? 0 COMMAND STATUS
883 * 1 1 0 0 RING STATUS
884 * 0 0 0 0 ADAPTER CHECK
886 * 0 = SSB field not affected by interrupt
887 * 1 = SSB field is affected by interrupt
889 * C = SSB ADDRESS +0: COMMAND
890 * 0 = SSB ADDRESS +2: STATUS 0
891 * 1 = SSB ADDRESS +4: STATUS 1
892 * 2 = SSB ADDRESS +6: STATUS 2
895 /* Check if this interrupt does use the SSB. */
897 if(IrqType != STS_IRQ_TRANSMIT_STATUS &&
898 IrqType != STS_IRQ_RECEIVE_STATUS &&
899 IrqType != STS_IRQ_COMMAND_STATUS &&
900 IrqType != STS_IRQ_RING_STATUS)
902 return (1); /* SSB not involved. */
905 /* Note: All fields of the SSB have been set to all ones (-1) after it
906 * has last been used by the software (see DriverIsr()).
908 * Check if the affected SSB fields are still unchanged.
911 if(ssb->STS == (unsigned short) -1)
912 return (0); /* Command field not yet available. */
913 if(IrqType == STS_IRQ_COMMAND_STATUS)
914 return (1); /* Status fields not always affected. */
915 if(ssb->Parm[0] == (unsigned short) -1)
916 return (0); /* Status 1 field not yet available. */
917 if(IrqType == STS_IRQ_RING_STATUS)
918 return (1); /* Status 2 & 3 fields not affected. */
920 /* Note: At this point, the interrupt is either TRANSMIT or RECEIVE. */
921 if(ssb->Parm[1] == (unsigned short) -1)
922 return (0); /* Status 2 field not yet available. */
923 if(ssb->Parm[2] == (unsigned short) -1)
924 return (0); /* Status 3 field not yet available. */
926 return (1); /* All SSB fields have been written by the adapter. */
930 * Evaluates the command results status in the SSB status field.
932 static void tms380tr_cmd_status_irq(struct net_device *dev)
934 struct net_local *tp = netdev_priv(dev);
935 unsigned short ssb_cmd, ssb_parm_0;
936 unsigned short ssb_parm_1;
937 char *open_err = "Open error -";
938 char *code_err = "Open code -";
940 /* Copy the ssb values to local variables */
941 ssb_cmd = tp->ssb.STS;
942 ssb_parm_0 = tp->ssb.Parm[0];
943 ssb_parm_1 = tp->ssb.Parm[1];
948 if(!tp->ReOpenInProgress)
949 wake_up_interruptible(&tp->wait_for_tok_int);
951 tp->OpenCommandIssued = 0;
954 if((ssb_parm_0 & 0x00FF) == GOOD_COMPLETION)
956 /* Success, the adapter is open. */
957 tp->LobeWireFaultLogged = 0;
958 tp->AdapterOpenFlag = 1;
959 tp->AdapterVirtOpenFlag = 1;
960 tp->TransmitCommandActive = 0;
961 tms380tr_exec_cmd(dev, OC_TRANSMIT);
962 tms380tr_exec_cmd(dev, OC_RECEIVE);
964 if(tp->ReOpenInProgress)
965 tp->ReOpenInProgress = 0;
969 else /* The adapter did not open. */
971 if(ssb_parm_0 & NODE_ADDR_ERROR)
972 printk(KERN_INFO "%s: Node address error\n",
974 if(ssb_parm_0 & LIST_SIZE_ERROR)
975 printk(KERN_INFO "%s: List size error\n",
977 if(ssb_parm_0 & BUF_SIZE_ERROR)
978 printk(KERN_INFO "%s: Buffer size error\n",
980 if(ssb_parm_0 & TX_BUF_COUNT_ERROR)
981 printk(KERN_INFO "%s: Tx buffer count error\n",
983 if(ssb_parm_0 & INVALID_OPEN_OPTION)
984 printk(KERN_INFO "%s: Invalid open option\n",
986 if(ssb_parm_0 & OPEN_ERROR)
988 /* Show the open phase. */
989 switch(ssb_parm_0 & OPEN_PHASES_MASK)
991 case LOBE_MEDIA_TEST:
992 if(!tp->LobeWireFaultLogged)
994 tp->LobeWireFaultLogged = 1;
995 printk(KERN_INFO "%s: %s Lobe wire fault (check cable !).\n", dev->name, open_err);
997 tp->ReOpenInProgress = 1;
998 tp->AdapterOpenFlag = 0;
999 tp->AdapterVirtOpenFlag = 1;
1000 tms380tr_open_adapter(dev);
1003 case PHYSICAL_INSERTION:
1004 printk(KERN_INFO "%s: %s Physical insertion.\n", dev->name, open_err);
1007 case ADDRESS_VERIFICATION:
1008 printk(KERN_INFO "%s: %s Address verification.\n", dev->name, open_err);
1011 case PARTICIPATION_IN_RING_POLL:
1012 printk(KERN_INFO "%s: %s Participation in ring poll.\n", dev->name, open_err);
1015 case REQUEST_INITIALISATION:
1016 printk(KERN_INFO "%s: %s Request initialisation.\n", dev->name, open_err);
1019 case FULLDUPLEX_CHECK:
1020 printk(KERN_INFO "%s: %s Full duplex check.\n", dev->name, open_err);
1024 printk(KERN_INFO "%s: %s Unknown open phase\n", dev->name, open_err);
1028 /* Show the open errors. */
1029 switch(ssb_parm_0 & OPEN_ERROR_CODES_MASK)
1031 case OPEN_FUNCTION_FAILURE:
1032 printk(KERN_INFO "%s: %s OPEN_FUNCTION_FAILURE", dev->name, code_err);
1033 tp->LastOpenStatus =
1034 OPEN_FUNCTION_FAILURE;
1037 case OPEN_SIGNAL_LOSS:
1038 printk(KERN_INFO "%s: %s OPEN_SIGNAL_LOSS\n", dev->name, code_err);
1039 tp->LastOpenStatus =
1044 printk(KERN_INFO "%s: %s OPEN_TIMEOUT\n", dev->name, code_err);
1045 tp->LastOpenStatus =
1049 case OPEN_RING_FAILURE:
1050 printk(KERN_INFO "%s: %s OPEN_RING_FAILURE\n", dev->name, code_err);
1051 tp->LastOpenStatus =
1055 case OPEN_RING_BEACONING:
1056 printk(KERN_INFO "%s: %s OPEN_RING_BEACONING\n", dev->name, code_err);
1057 tp->LastOpenStatus =
1058 OPEN_RING_BEACONING;
1061 case OPEN_DUPLICATE_NODEADDR:
1062 printk(KERN_INFO "%s: %s OPEN_DUPLICATE_NODEADDR\n", dev->name, code_err);
1063 tp->LastOpenStatus =
1064 OPEN_DUPLICATE_NODEADDR;
1067 case OPEN_REQUEST_INIT:
1068 printk(KERN_INFO "%s: %s OPEN_REQUEST_INIT\n", dev->name, code_err);
1069 tp->LastOpenStatus =
1073 case OPEN_REMOVE_RECEIVED:
1074 printk(KERN_INFO "%s: %s OPEN_REMOVE_RECEIVED", dev->name, code_err);
1075 tp->LastOpenStatus =
1076 OPEN_REMOVE_RECEIVED;
1079 case OPEN_FULLDUPLEX_SET:
1080 printk(KERN_INFO "%s: %s OPEN_FULLDUPLEX_SET\n", dev->name, code_err);
1081 tp->LastOpenStatus =
1082 OPEN_FULLDUPLEX_SET;
1086 printk(KERN_INFO "%s: %s Unknown open err code", dev->name, code_err);
1087 tp->LastOpenStatus =
1088 OPEN_FUNCTION_FAILURE;
1093 tp->AdapterOpenFlag = 0;
1094 tp->AdapterVirtOpenFlag = 0;
1101 if(ssb_cmd != READ_ERROR_LOG)
1104 /* Add values from the error log table to the MAC
1105 * statistics counters and update the errorlogtable
1108 tp->MacStat.line_errors += tp->errorlogtable.Line_Error;
1109 tp->MacStat.burst_errors += tp->errorlogtable.Burst_Error;
1110 tp->MacStat.A_C_errors += tp->errorlogtable.ARI_FCI_Error;
1111 tp->MacStat.lost_frames += tp->errorlogtable.Lost_Frame_Error;
1112 tp->MacStat.recv_congest_count += tp->errorlogtable.Rx_Congest_Error;
1113 tp->MacStat.rx_errors += tp->errorlogtable.Rx_Congest_Error;
1114 tp->MacStat.frame_copied_errors += tp->errorlogtable.Frame_Copied_Error;
1115 tp->MacStat.token_errors += tp->errorlogtable.Token_Error;
1116 tp->MacStat.dummy1 += tp->errorlogtable.DMA_Bus_Error;
1117 tp->MacStat.dummy1 += tp->errorlogtable.DMA_Parity_Error;
1118 tp->MacStat.abort_delimiters += tp->errorlogtable.AbortDelimeters;
1119 tp->MacStat.frequency_errors += tp->errorlogtable.Frequency_Error;
1120 tp->MacStat.internal_errors += tp->errorlogtable.Internal_Error;
1127 * The inverse routine to tms380tr_open().
1129 int tms380tr_close(struct net_device *dev)
1131 struct net_local *tp = netdev_priv(dev);
1132 netif_stop_queue(dev);
1134 del_timer(&tp->timer);
1136 /* Flush the Tx and disable Rx here. */
1138 tp->HaltInProgress = 1;
1139 tms380tr_exec_cmd(dev, OC_CLOSE);
1140 tp->timer.expires = jiffies + 1*HZ;
1141 tp->timer.function = tms380tr_timer_end_wait;
1142 tp->timer.data = (unsigned long)dev;
1143 add_timer(&tp->timer);
1145 tms380tr_enable_interrupts(dev);
1148 interruptible_sleep_on(&tp->wait_for_tok_int);
1149 tp->TransmitCommandActive = 0;
1151 del_timer(&tp->timer);
1152 tms380tr_disable_interrupts(dev);
1157 unsigned long flags=claim_dma_lock();
1158 disable_dma(dev->dma);
1159 release_dma_lock(flags);
1163 SIFWRITEW(0xFF00, SIFCMD);
1165 if(dev->dma > 0) /* what the? */
1166 SIFWRITEB(0xff, POSREG);
1168 tms380tr_cancel_tx_queue(tp);
1174 * Get the current statistics. This may be called with the card open
1177 static struct net_device_stats *tms380tr_get_stats(struct net_device *dev)
1179 struct net_local *tp = netdev_priv(dev);
1181 return ((struct net_device_stats *)&tp->MacStat);
1185 * Set or clear the multicast filter for this adapter.
1187 static void tms380tr_set_multicast_list(struct net_device *dev)
1189 struct net_local *tp = netdev_priv(dev);
1190 unsigned int OpenOptions;
1192 OpenOptions = tp->ocpl.OPENOptions &
1193 ~(PASS_ADAPTER_MAC_FRAMES
1194 | PASS_ATTENTION_FRAMES
1195 | PASS_BEACON_MAC_FRAMES
1196 | COPY_ALL_MAC_FRAMES
1197 | COPY_ALL_NON_MAC_FRAMES);
1199 tp->ocpl.FunctAddr = 0;
1201 if(dev->flags & IFF_PROMISC)
1202 /* Enable promiscuous mode */
1203 OpenOptions |= COPY_ALL_NON_MAC_FRAMES |
1204 COPY_ALL_MAC_FRAMES;
1207 if(dev->flags & IFF_ALLMULTI)
1209 /* Disable promiscuous mode, use normal mode. */
1210 tp->ocpl.FunctAddr = 0xFFFFFFFF;
1214 struct dev_mc_list *mclist;
1216 netdev_for_each_mc_addr(mclist, dev) {
1217 ((char *)(&tp->ocpl.FunctAddr))[0] |=
1218 mclist->dmi_addr[2];
1219 ((char *)(&tp->ocpl.FunctAddr))[1] |=
1220 mclist->dmi_addr[3];
1221 ((char *)(&tp->ocpl.FunctAddr))[2] |=
1222 mclist->dmi_addr[4];
1223 ((char *)(&tp->ocpl.FunctAddr))[3] |=
1224 mclist->dmi_addr[5];
1227 tms380tr_exec_cmd(dev, OC_SET_FUNCT_ADDR);
1230 tp->ocpl.OPENOptions = OpenOptions;
1231 tms380tr_exec_cmd(dev, OC_MODIFY_OPEN_PARMS);
1236 * Wait for some time (microseconds)
1238 void tms380tr_wait(unsigned long time)
1243 tmp = jiffies + time/(1000000/HZ);
1245 tmp = schedule_timeout_interruptible(tmp);
1246 } while(time_after(tmp, jiffies));
1254 * Write a command value to the SIFCMD register
1256 static void tms380tr_exec_sifcmd(struct net_device *dev, unsigned int WriteValue)
1259 unsigned short SifStsValue;
1260 unsigned long loop_counter;
1262 WriteValue = ((WriteValue ^ CMD_SYSTEM_IRQ) | CMD_INTERRUPT_ADAPTER);
1263 cmd = (unsigned short)WriteValue;
1264 loop_counter = 0,5 * 800000;
1266 SifStsValue = SIFREADW(SIFSTS);
1267 } while((SifStsValue & CMD_INTERRUPT_ADAPTER) && loop_counter--);
1268 SIFWRITEW(cmd, SIFCMD);
1274 * Processes adapter hardware reset, halts adapter and downloads firmware,
1275 * clears the halt bit.
1277 static int tms380tr_reset_adapter(struct net_device *dev)
1279 struct net_local *tp = netdev_priv(dev);
1280 unsigned short *fw_ptr;
1281 unsigned short count, c, count2;
1282 const struct firmware *fw_entry = NULL;
1284 if (request_firmware(&fw_entry, "tms380tr.bin", tp->pdev) != 0) {
1285 printk(KERN_ALERT "%s: firmware %s is missing, cannot start.\n",
1286 dev->name, "tms380tr.bin");
1290 fw_ptr = (unsigned short *)fw_entry->data;
1291 count2 = fw_entry->size / 2;
1293 /* Hardware adapter reset */
1294 SIFWRITEW(ACL_ARESET, SIFACL);
1297 c = SIFREADW(SIFACL);
1300 if(dev->dma == 0) /* For PCI adapters */
1302 c &= ~(ACL_NSELOUT0 | ACL_NSELOUT1); /* Clear bits */
1304 c |= (*tp->setnselout)(dev);
1307 /* In case a command is pending - forget it */
1310 c &= ~ACL_ARESET; /* Clear adapter reset bit */
1311 c |= ACL_CPHALT; /* Halt adapter CPU, allow download */
1314 c &= ~ACL_PSDMAEN; /* Clear pseudo dma bit */
1315 SIFWRITEW(c, SIFACL);
1319 /* Download firmware via DIO interface: */
1321 if (count2 < 3) continue;
1323 /* Download first address part */
1324 SIFWRITEW(*fw_ptr, SIFADX);
1327 /* Download second address part */
1328 SIFWRITEW(*fw_ptr, SIFADD);
1332 if((count = *fw_ptr) != 0) /* Load loop counter */
1334 fw_ptr++; /* Download block data */
1336 if (count > count2) continue;
1338 for(; count > 0; count--)
1340 SIFWRITEW(*fw_ptr, SIFINC);
1345 else /* Stop, if last block downloaded */
1347 c = SIFREADW(SIFACL);
1348 c &= (~ACL_CPHALT | ACL_SINTEN);
1350 /* Clear CPHALT and start BUD */
1351 SIFWRITEW(c, SIFACL);
1353 release_firmware(fw_entry);
1356 } while(count == 0);
1359 release_firmware(fw_entry);
1360 printk(KERN_INFO "%s: Adapter Download Failed\n", dev->name);
1364 MODULE_FIRMWARE("tms380tr.bin");
1367 * Starts bring up diagnostics of token ring adapter and evaluates
1368 * diagnostic results.
1370 static int tms380tr_bringup_diags(struct net_device *dev)
1372 int loop_cnt, retry_cnt;
1373 unsigned short Status;
1375 tms380tr_wait(HALF_SECOND);
1376 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1377 tms380tr_wait(HALF_SECOND);
1379 retry_cnt = BUD_MAX_RETRIES; /* maximal number of retrys */
1383 if(tms380tr_debug > 3)
1384 printk(KERN_DEBUG "BUD-Status: ");
1385 loop_cnt = BUD_MAX_LOOPCNT; /* maximum: three seconds*/
1386 do { /* Inspect BUD results */
1388 tms380tr_wait(HALF_SECOND);
1389 Status = SIFREADW(SIFSTS);
1392 if(tms380tr_debug > 3)
1393 printk(KERN_DEBUG " %04X \n", Status);
1394 /* BUD successfully completed */
1395 if(Status == STS_INITIALIZE)
1397 /* Unrecoverable hardware error, BUD not completed? */
1398 } while((loop_cnt > 0) && ((Status & (STS_ERROR | STS_TEST))
1399 != (STS_ERROR | STS_TEST)));
1401 /* Error preventing completion of BUD */
1404 printk(KERN_INFO "%s: Adapter Software Reset.\n",
1406 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1407 tms380tr_wait(HALF_SECOND);
1409 } while(retry_cnt > 0);
1411 Status = SIFREADW(SIFSTS);
1413 printk(KERN_INFO "%s: Hardware error\n", dev->name);
1414 /* Hardware error occurred! */
1416 if (Status & 0x0010)
1417 printk(KERN_INFO "%s: BUD Error: Timeout\n", dev->name);
1418 else if ((Status & 0x000f) > 6)
1419 printk(KERN_INFO "%s: BUD Error: Illegal Failure\n", dev->name);
1421 printk(KERN_INFO "%s: Bring Up Diagnostics Error (%04X) occurred\n", dev->name, Status & 0x000f);
1427 * Copy initialisation data to adapter memory, beginning at address
1428 * 1:0A00; Starting DMA test and evaluating result bits.
1430 static int tms380tr_init_adapter(struct net_device *dev)
1432 struct net_local *tp = netdev_priv(dev);
1434 const unsigned char SCB_Test[6] = {0x00, 0x00, 0xC1, 0xE2, 0xD4, 0x8B};
1435 const unsigned char SSB_Test[8] = {0xFF, 0xFF, 0xD1, 0xD7,
1436 0xC5, 0xD9, 0xC3, 0xD4};
1437 void *ptr = (void *)&tp->ipb;
1438 unsigned short *ipb_ptr = (unsigned short *)ptr;
1439 unsigned char *cb_ptr = (unsigned char *) &tp->scb;
1440 unsigned char *sb_ptr = (unsigned char *) &tp->ssb;
1441 unsigned short Status;
1442 int i, loop_cnt, retry_cnt;
1444 /* Normalize: byte order low/high, word order high/low! (only IPB!) */
1445 tp->ipb.SCB_Addr = SWAPW(((char *)&tp->scb - (char *)tp) + tp->dmabuffer);
1446 tp->ipb.SSB_Addr = SWAPW(((char *)&tp->ssb - (char *)tp) + tp->dmabuffer);
1448 if(tms380tr_debug > 3)
1450 printk(KERN_DEBUG "%s: buffer (real): %lx\n", dev->name, (long) &tp->scb);
1451 printk(KERN_DEBUG "%s: buffer (virt): %lx\n", dev->name, (long) ((char *)&tp->scb - (char *)tp) + (long) tp->dmabuffer);
1452 printk(KERN_DEBUG "%s: buffer (DMA) : %lx\n", dev->name, (long) tp->dmabuffer);
1453 printk(KERN_DEBUG "%s: buffer (tp) : %lx\n", dev->name, (long) tp);
1455 /* Maximum: three initialization retries */
1456 retry_cnt = INIT_MAX_RETRIES;
1461 /* Transfer initialization block */
1462 SIFWRITEW(0x0001, SIFADX);
1464 /* To address 0001:0A00 of adapter RAM */
1465 SIFWRITEW(0x0A00, SIFADD);
1467 /* Write 11 words to adapter RAM */
1468 for(i = 0; i < 11; i++)
1469 SIFWRITEW(ipb_ptr[i], SIFINC);
1471 /* Execute SCB adapter command */
1472 tms380tr_exec_sifcmd(dev, CMD_EXECUTE);
1474 loop_cnt = INIT_MAX_LOOPCNT; /* Maximum: 11 seconds */
1476 /* While remaining retries, no error and not completed */
1480 tms380tr_wait(HALF_SECOND);
1482 /* Mask interesting status bits */
1483 Status = SIFREADW(SIFSTS);
1485 } while(((Status &(STS_INITIALIZE | STS_ERROR | STS_TEST)) != 0) &&
1486 ((Status & STS_ERROR) == 0) && (loop_cnt != 0));
1488 if((Status & (STS_INITIALIZE | STS_ERROR | STS_TEST)) == 0)
1490 /* Initialization completed without error */
1492 do { /* Test if contents of SCB is valid */
1493 if(SCB_Test[i] != *(cb_ptr + i))
1495 printk(KERN_INFO "%s: DMA failed\n", dev->name);
1496 /* DMA data error: wrong data in SCB */
1503 do { /* Test if contents of SSB is valid */
1504 if(SSB_Test[i] != *(sb_ptr + i))
1505 /* DMA data error: wrong data in SSB */
1510 return (1); /* Adapter successfully initialized */
1514 if((Status & STS_ERROR) != 0)
1516 /* Initialization error occurred */
1517 Status = SIFREADW(SIFSTS);
1518 Status &= STS_ERROR_MASK;
1519 /* ShowInitialisationErrorCode(Status); */
1520 printk(KERN_INFO "%s: Status error: %d\n", dev->name, Status);
1521 return (-1); /* Unrecoverable error */
1527 /* Reset adapter and try init again */
1528 tms380tr_exec_sifcmd(dev, EXEC_SOFT_RESET);
1529 tms380tr_wait(HALF_SECOND);
1533 } while(retry_cnt > 0);
1535 printk(KERN_INFO "%s: Retry exceeded\n", dev->name);
1540 * Check for outstanding commands in command queue and tries to execute
1541 * command immediately. Corresponding command flag in command queue is cleared.
1543 static void tms380tr_chk_outstanding_cmds(struct net_device *dev)
1545 struct net_local *tp = netdev_priv(dev);
1546 unsigned long Addr = 0;
1548 if(tp->CMDqueue == 0)
1549 return; /* No command execution */
1551 /* If SCB in use: no command */
1552 if(tp->ScbInUse == 1)
1555 /* Check if adapter is opened, avoiding COMMAND_REJECT
1556 * interrupt by the adapter!
1558 if(tp->AdapterOpenFlag == 0)
1560 if(tp->CMDqueue & OC_OPEN)
1562 /* Execute OPEN command */
1563 tp->CMDqueue ^= OC_OPEN;
1565 Addr = htonl(((char *)&tp->ocpl - (char *)tp) + tp->dmabuffer);
1566 tp->scb.Parm[0] = LOWORD(Addr);
1567 tp->scb.Parm[1] = HIWORD(Addr);
1571 /* No OPEN command queued, but adapter closed. Note:
1572 * We'll try to re-open the adapter in DriverPoll()
1574 return; /* No adapter command issued */
1578 /* Adapter is open; evaluate command queue: try to execute
1579 * outstanding commands (depending on priority!) CLOSE
1582 if(tp->CMDqueue & OC_CLOSE)
1584 tp->CMDqueue ^= OC_CLOSE;
1585 tp->AdapterOpenFlag = 0;
1586 tp->scb.Parm[0] = 0; /* Parm[0], Parm[1] are ignored */
1587 tp->scb.Parm[1] = 0; /* but should be set to zero! */
1588 tp->scb.CMD = CLOSE;
1589 if(!tp->HaltInProgress)
1590 tp->CMDqueue |= OC_OPEN; /* re-open adapter */
1592 tp->CMDqueue = 0; /* no more commands */
1596 if(tp->CMDqueue & OC_RECEIVE)
1598 tp->CMDqueue ^= OC_RECEIVE;
1599 Addr = htonl(((char *)tp->RplHead - (char *)tp) + tp->dmabuffer);
1600 tp->scb.Parm[0] = LOWORD(Addr);
1601 tp->scb.Parm[1] = HIWORD(Addr);
1602 tp->scb.CMD = RECEIVE;
1606 if(tp->CMDqueue & OC_TRANSMIT_HALT)
1608 /* NOTE: TRANSMIT.HALT must be checked
1611 tp->CMDqueue ^= OC_TRANSMIT_HALT;
1612 tp->scb.CMD = TRANSMIT_HALT;
1614 /* Parm[0] and Parm[1] are ignored
1615 * but should be set to zero!
1617 tp->scb.Parm[0] = 0;
1618 tp->scb.Parm[1] = 0;
1622 if(tp->CMDqueue & OC_TRANSMIT)
1624 /* NOTE: TRANSMIT must be
1625 * checked after TRANSMIT.HALT
1627 if(tp->TransmitCommandActive)
1629 if(!tp->TransmitHaltScheduled)
1631 tp->TransmitHaltScheduled = 1;
1632 tms380tr_exec_cmd(dev, OC_TRANSMIT_HALT) ;
1634 tp->TransmitCommandActive = 0;
1638 tp->CMDqueue ^= OC_TRANSMIT;
1639 tms380tr_cancel_tx_queue(tp);
1640 Addr = htonl(((char *)tp->TplBusy - (char *)tp) + tp->dmabuffer);
1641 tp->scb.Parm[0] = LOWORD(Addr);
1642 tp->scb.Parm[1] = HIWORD(Addr);
1643 tp->scb.CMD = TRANSMIT;
1644 tp->TransmitCommandActive = 1;
1648 if(tp->CMDqueue & OC_MODIFY_OPEN_PARMS)
1650 tp->CMDqueue ^= OC_MODIFY_OPEN_PARMS;
1651 tp->scb.Parm[0] = tp->ocpl.OPENOptions; /* new OPEN options*/
1652 tp->scb.Parm[0] |= ENABLE_FULL_DUPLEX_SELECTION;
1653 tp->scb.Parm[1] = 0; /* is ignored but should be zero */
1654 tp->scb.CMD = MODIFY_OPEN_PARMS;
1658 if(tp->CMDqueue & OC_SET_FUNCT_ADDR)
1660 tp->CMDqueue ^= OC_SET_FUNCT_ADDR;
1661 tp->scb.Parm[0] = LOWORD(tp->ocpl.FunctAddr);
1662 tp->scb.Parm[1] = HIWORD(tp->ocpl.FunctAddr);
1663 tp->scb.CMD = SET_FUNCT_ADDR;
1667 if(tp->CMDqueue & OC_SET_GROUP_ADDR)
1669 tp->CMDqueue ^= OC_SET_GROUP_ADDR;
1670 tp->scb.Parm[0] = LOWORD(tp->ocpl.GroupAddr);
1671 tp->scb.Parm[1] = HIWORD(tp->ocpl.GroupAddr);
1672 tp->scb.CMD = SET_GROUP_ADDR;
1676 if(tp->CMDqueue & OC_READ_ERROR_LOG)
1678 tp->CMDqueue ^= OC_READ_ERROR_LOG;
1679 Addr = htonl(((char *)&tp->errorlogtable - (char *)tp) + tp->dmabuffer);
1680 tp->scb.Parm[0] = LOWORD(Addr);
1681 tp->scb.Parm[1] = HIWORD(Addr);
1682 tp->scb.CMD = READ_ERROR_LOG;
1686 printk(KERN_WARNING "CheckForOutstandingCommand: unknown Command\n");
1699 tp->ScbInUse = 1; /* Set semaphore: SCB in use. */
1701 /* Execute SCB and generate IRQ when done. */
1702 tms380tr_exec_sifcmd(dev, CMD_EXECUTE | CMD_SCB_REQUEST);
1708 * IRQ conditions: signal loss on the ring, transmit or receive of beacon
1709 * frames (disabled if bit 1 of OPEN option is set); report error MAC
1710 * frame transmit (disabled if bit 2 of OPEN option is set); open or short
1711 * circuit fault on the lobe is detected; remove MAC frame received;
1712 * error counter overflow (255); opened adapter is the only station in ring.
1713 * After some of the IRQs the adapter is closed!
1715 static void tms380tr_ring_status_irq(struct net_device *dev)
1717 struct net_local *tp = netdev_priv(dev);
1719 tp->CurrentRingStatus = be16_to_cpu((unsigned short)tp->ssb.Parm[0]);
1721 /* First: fill up statistics */
1722 if(tp->ssb.Parm[0] & SIGNAL_LOSS)
1724 printk(KERN_INFO "%s: Signal Loss\n", dev->name);
1725 tp->MacStat.line_errors++;
1728 /* Adapter is closed, but initialized */
1729 if(tp->ssb.Parm[0] & LOBE_WIRE_FAULT)
1731 printk(KERN_INFO "%s: Lobe Wire Fault, Reopen Adapter\n",
1733 tp->MacStat.line_errors++;
1736 if(tp->ssb.Parm[0] & RING_RECOVERY)
1737 printk(KERN_INFO "%s: Ring Recovery\n", dev->name);
1739 /* Counter overflow: read error log */
1740 if(tp->ssb.Parm[0] & COUNTER_OVERFLOW)
1742 printk(KERN_INFO "%s: Counter Overflow\n", dev->name);
1743 tms380tr_exec_cmd(dev, OC_READ_ERROR_LOG);
1746 /* Adapter is closed, but initialized */
1747 if(tp->ssb.Parm[0] & REMOVE_RECEIVED)
1748 printk(KERN_INFO "%s: Remove Received, Reopen Adapter\n",
1751 /* Adapter is closed, but initialized */
1752 if(tp->ssb.Parm[0] & AUTO_REMOVAL_ERROR)
1753 printk(KERN_INFO "%s: Auto Removal Error, Reopen Adapter\n",
1756 if(tp->ssb.Parm[0] & HARD_ERROR)
1757 printk(KERN_INFO "%s: Hard Error\n", dev->name);
1759 if(tp->ssb.Parm[0] & SOFT_ERROR)
1760 printk(KERN_INFO "%s: Soft Error\n", dev->name);
1762 if(tp->ssb.Parm[0] & TRANSMIT_BEACON)
1763 printk(KERN_INFO "%s: Transmit Beacon\n", dev->name);
1765 if(tp->ssb.Parm[0] & SINGLE_STATION)
1766 printk(KERN_INFO "%s: Single Station\n", dev->name);
1768 /* Check if adapter has been closed */
1769 if(tp->ssb.Parm[0] & ADAPTER_CLOSED)
1771 printk(KERN_INFO "%s: Adapter closed (Reopening),"
1772 "CurrentRingStat %x\n",
1773 dev->name, tp->CurrentRingStatus);
1774 tp->AdapterOpenFlag = 0;
1775 tms380tr_open_adapter(dev);
1782 * Issued if adapter has encountered an unrecoverable hardware
1783 * or software error.
1785 static void tms380tr_chk_irq(struct net_device *dev)
1788 unsigned short AdapterCheckBlock[4];
1789 struct net_local *tp = netdev_priv(dev);
1791 tp->AdapterOpenFlag = 0; /* Adapter closed now */
1793 /* Page number of adapter memory */
1794 SIFWRITEW(0x0001, SIFADX);
1795 /* Address offset */
1796 SIFWRITEW(CHECKADDR, SIFADR);
1798 /* Reading 8 byte adapter check block. */
1799 for(i = 0; i < 4; i++)
1800 AdapterCheckBlock[i] = SIFREADW(SIFINC);
1802 if(tms380tr_debug > 3)
1804 printk(KERN_DEBUG "%s: AdapterCheckBlock: ", dev->name);
1805 for (i = 0; i < 4; i++)
1806 printk("%04X", AdapterCheckBlock[i]);
1810 switch(AdapterCheckBlock[0])
1813 printk(KERN_INFO "%s: DIO parity error\n", dev->name);
1816 case DMA_READ_ABORT:
1817 printk(KERN_INFO "%s DMA read operation aborted:\n",
1819 switch (AdapterCheckBlock[1])
1822 printk(KERN_INFO "Timeout\n");
1823 printk(KERN_INFO "Address: %04X %04X\n",
1824 AdapterCheckBlock[2],
1825 AdapterCheckBlock[3]);
1829 printk(KERN_INFO "Parity error\n");
1830 printk(KERN_INFO "Address: %04X %04X\n",
1831 AdapterCheckBlock[2],
1832 AdapterCheckBlock[3]);
1836 printk(KERN_INFO "Bus error\n");
1837 printk(KERN_INFO "Address: %04X %04X\n",
1838 AdapterCheckBlock[2],
1839 AdapterCheckBlock[3]);
1843 printk(KERN_INFO "Unknown error.\n");
1848 case DMA_WRITE_ABORT:
1849 printk(KERN_INFO "%s: DMA write operation aborted: \n",
1851 switch (AdapterCheckBlock[1])
1854 printk(KERN_INFO "Timeout\n");
1855 printk(KERN_INFO "Address: %04X %04X\n",
1856 AdapterCheckBlock[2],
1857 AdapterCheckBlock[3]);
1861 printk(KERN_INFO "Parity error\n");
1862 printk(KERN_INFO "Address: %04X %04X\n",
1863 AdapterCheckBlock[2],
1864 AdapterCheckBlock[3]);
1868 printk(KERN_INFO "Bus error\n");
1869 printk(KERN_INFO "Address: %04X %04X\n",
1870 AdapterCheckBlock[2],
1871 AdapterCheckBlock[3]);
1875 printk(KERN_INFO "Unknown error.\n");
1880 case ILLEGAL_OP_CODE:
1881 printk(KERN_INFO "%s: Illegal operation code in firmware\n",
1883 /* Parm[0-3]: adapter internal register R13-R15 */
1887 printk(KERN_INFO "%s: Adapter internal bus parity error\n",
1889 /* Parm[0-3]: adapter internal register R13-R15 */
1892 case RAM_DATA_ERROR:
1893 printk(KERN_INFO "%s: RAM data error\n", dev->name);
1894 /* Parm[0-1]: MSW/LSW address of RAM location. */
1897 case RAM_PARITY_ERROR:
1898 printk(KERN_INFO "%s: RAM parity error\n", dev->name);
1899 /* Parm[0-1]: MSW/LSW address of RAM location. */
1903 printk(KERN_INFO "%s: Internal DMA underrun detected\n",
1908 printk(KERN_INFO "%s: Unrecognized interrupt detected\n",
1910 /* Parm[0-3]: adapter internal register R13-R15 */
1913 case INVALID_ERROR_IRQ:
1914 printk(KERN_INFO "%s: Unrecognized error interrupt detected\n",
1916 /* Parm[0-3]: adapter internal register R13-R15 */
1920 printk(KERN_INFO "%s: Unrecognized XOP request detected\n",
1922 /* Parm[0-3]: adapter internal register R13-R15 */
1926 printk(KERN_INFO "%s: Unknown status", dev->name);
1930 if(tms380tr_chipset_init(dev) == 1)
1932 /* Restart of firmware successful */
1933 tp->AdapterOpenFlag = 1;
1940 * Internal adapter pointer to RAM data are copied from adapter into
1943 static int tms380tr_read_ptr(struct net_device *dev)
1945 struct net_local *tp = netdev_priv(dev);
1946 unsigned short adapterram;
1948 tms380tr_read_ram(dev, (unsigned char *)&tp->intptrs.BurnedInAddrPtr,
1949 ADAPTER_INT_PTRS, 16);
1950 tms380tr_read_ram(dev, (unsigned char *)&adapterram,
1951 cpu_to_be16((unsigned short)tp->intptrs.AdapterRAMPtr), 2);
1952 return be16_to_cpu(adapterram);
1956 * Reads a number of bytes from adapter to system memory.
1958 static void tms380tr_read_ram(struct net_device *dev, unsigned char *Data,
1959 unsigned short Address, int Length)
1962 unsigned short old_sifadx, old_sifadr, InWord;
1964 /* Save the current values */
1965 old_sifadx = SIFREADW(SIFADX);
1966 old_sifadr = SIFREADW(SIFADR);
1968 /* Page number of adapter memory */
1969 SIFWRITEW(0x0001, SIFADX);
1970 /* Address offset in adapter RAM */
1971 SIFWRITEW(Address, SIFADR);
1973 /* Copy len byte from adapter memory to system data area. */
1977 InWord = SIFREADW(SIFINC);
1979 *(Data + i) = HIBYTE(InWord); /* Write first byte */
1980 if(++i == Length) /* All is done break */
1983 *(Data + i) = LOBYTE(InWord); /* Write second byte */
1984 if (++i == Length) /* All is done break */
1988 /* Restore original values */
1989 SIFWRITEW(old_sifadx, SIFADX);
1990 SIFWRITEW(old_sifadr, SIFADR);
1996 * Cancel all queued packets in the transmission queue.
1998 static void tms380tr_cancel_tx_queue(struct net_local* tp)
2003 * NOTE: There must not be an active TRANSMIT command pending, when
2004 * this function is called.
2006 if(tp->TransmitCommandActive)
2014 /* "Remove" TPL from busy list. */
2015 tp->TplBusy = tpl->NextTPLPtr;
2016 tms380tr_write_tpl_status(tpl, 0); /* Clear VALID bit */
2017 tpl->BusyFlag = 0; /* "free" TPL */
2019 printk(KERN_INFO "Cancel tx (%08lXh).\n", (unsigned long)tpl);
2021 dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE);
2022 dev_kfree_skb_any(tpl->Skb);
2029 * This function is called whenever a transmit interrupt is generated by the
2030 * adapter. For a command complete interrupt, it is checked if we have to
2031 * issue a new transmit command or not.
2033 static void tms380tr_tx_status_irq(struct net_device *dev)
2035 struct net_local *tp = netdev_priv(dev);
2036 unsigned char HighByte, HighAc, LowAc;
2039 /* NOTE: At this point the SSB from TRANSMIT STATUS is no longer
2040 * available, because the CLEAR SSB command has already been issued.
2042 * Process all complete transmissions.
2048 if(!tpl->BusyFlag || (tpl->Status
2049 & (TX_VALID | TX_FRAME_COMPLETE))
2050 != TX_FRAME_COMPLETE)
2055 /* "Remove" TPL from busy list. */
2056 tp->TplBusy = tpl->NextTPLPtr ;
2058 /* Check the transmit status field only for directed frames*/
2059 if(DIRECTED_FRAME(tpl) && (tpl->Status & TX_ERROR) == 0)
2061 HighByte = GET_TRANSMIT_STATUS_HIGH_BYTE(tpl->Status);
2062 HighAc = GET_FRAME_STATUS_HIGH_AC(HighByte);
2063 LowAc = GET_FRAME_STATUS_LOW_AC(HighByte);
2065 if((HighAc != LowAc) || (HighAc == AC_NOT_RECOGNIZED))
2067 printk(KERN_DEBUG "%s: (DA=%08lX not recognized)\n",
2069 *(unsigned long *)&tpl->MData[2+2]);
2073 if(tms380tr_debug > 3)
2074 printk(KERN_DEBUG "%s: Directed frame tx'd\n",
2080 if(!DIRECTED_FRAME(tpl))
2082 if(tms380tr_debug > 3)
2083 printk(KERN_DEBUG "%s: Broadcast frame tx'd\n",
2088 tp->MacStat.tx_packets++;
2090 dma_unmap_single(tp->pdev, tpl->DMABuff, tpl->Skb->len, DMA_TO_DEVICE);
2091 dev_kfree_skb_irq(tpl->Skb);
2092 tpl->BusyFlag = 0; /* "free" TPL */
2095 if(!tp->TplFree->NextTPLPtr->BusyFlag)
2096 netif_wake_queue(dev);
2101 * Called if a frame receive interrupt is generated by the adapter.
2102 * Check if the frame is valid and indicate it to system.
2104 static void tms380tr_rcv_status_irq(struct net_device *dev)
2106 struct net_local *tp = netdev_priv(dev);
2107 unsigned char *ReceiveDataPtr;
2108 struct sk_buff *skb;
2109 unsigned int Length, Length2;
2114 /* NOTE: At this point the SSB from RECEIVE STATUS is no longer
2115 * available, because the CLEAR SSB command has already been issued.
2117 * Process all complete receives.
2123 if(rpl->Status & RX_VALID)
2124 break; /* RPL still in use by adapter */
2126 /* Forward RPLHead pointer to next list. */
2127 SaveHead = tp->RplHead;
2128 tp->RplHead = rpl->NextRPLPtr;
2130 /* Get the frame size (Byte swap for Intel).
2131 * Do this early (see workaround comment below)
2133 Length = be16_to_cpu(rpl->FrameSize);
2135 /* Check if the Frame_Start, Frame_End and
2136 * Frame_Complete bits are set.
2138 if((rpl->Status & VALID_SINGLE_BUFFER_FRAME)
2139 == VALID_SINGLE_BUFFER_FRAME)
2141 ReceiveDataPtr = rpl->MData;
2143 /* Workaround for delayed write of FrameSize on ISA
2144 * (FrameSize is false but valid-bit is reset)
2145 * Frame size is set to zero when the RPL is freed.
2146 * Length2 is there because there have also been
2147 * cases where the FrameSize was partially written
2149 Length2 = be16_to_cpu(rpl->FrameSize);
2151 if(Length == 0 || Length != Length2)
2153 tp->RplHead = SaveHead;
2154 break; /* Return to tms380tr_interrupt */
2156 tms380tr_update_rcv_stats(tp,ReceiveDataPtr,Length);
2158 if(tms380tr_debug > 3)
2159 printk(KERN_DEBUG "%s: Packet Length %04X (%d)\n",
2160 dev->name, Length, Length);
2162 /* Indicate the received frame to system the
2163 * adapter does the Source-Routing padding for
2164 * us. See: OpenOptions in tms380tr_init_opb()
2167 if(rpl->SkbStat == SKB_UNAVAILABLE)
2169 /* Try again to allocate skb */
2170 skb = dev_alloc_skb(tp->MaxPacketSize);
2173 /* Update Stats ?? */
2177 skb_put(skb, tp->MaxPacketSize);
2178 rpl->SkbStat = SKB_DATA_COPY;
2179 ReceiveDataPtr = rpl->MData;
2183 if(skb && (rpl->SkbStat == SKB_DATA_COPY ||
2184 rpl->SkbStat == SKB_DMA_DIRECT))
2186 if(rpl->SkbStat == SKB_DATA_COPY)
2187 skb_copy_to_linear_data(skb, ReceiveDataPtr,
2190 /* Deliver frame to system */
2192 skb_trim(skb,Length);
2193 skb->protocol = tr_type_trans(skb,dev);
2197 else /* Invalid frame */
2199 if(rpl->Skb != NULL)
2200 dev_kfree_skb_irq(rpl->Skb);
2203 if(rpl->Status & RX_START_FRAME)
2204 /* Frame start bit is set -> overflow. */
2205 tp->MacStat.rx_errors++;
2208 dma_unmap_single(tp->pdev, rpl->DMABuff, tp->MaxPacketSize, DMA_TO_DEVICE);
2211 /* Allocate new skb for rpl */
2212 rpl->Skb = dev_alloc_skb(tp->MaxPacketSize);
2213 /* skb == NULL ? then use local buffer */
2214 if(rpl->Skb == NULL)
2216 rpl->SkbStat = SKB_UNAVAILABLE;
2217 rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
2218 rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
2220 else /* skb != NULL */
2222 rpl->Skb->dev = dev;
2223 skb_put(rpl->Skb, tp->MaxPacketSize);
2225 /* Data unreachable for DMA ? then use local buffer */
2226 dmabuf = dma_map_single(tp->pdev, rpl->Skb->data, tp->MaxPacketSize, DMA_FROM_DEVICE);
2227 if(tp->dmalimit && (dmabuf + tp->MaxPacketSize > tp->dmalimit))
2229 rpl->SkbStat = SKB_DATA_COPY;
2230 rpl->FragList[0].DataAddr = htonl(((char *)tp->LocalRxBuffers[rpl->RPLIndex] - (char *)tp) + tp->dmabuffer);
2231 rpl->MData = tp->LocalRxBuffers[rpl->RPLIndex];
2235 /* DMA directly in skb->data */
2236 rpl->SkbStat = SKB_DMA_DIRECT;
2237 rpl->FragList[0].DataAddr = htonl(dmabuf);
2238 rpl->MData = rpl->Skb->data;
2239 rpl->DMABuff = dmabuf;
2243 rpl->FragList[0].DataCount = cpu_to_be16((unsigned short)tp->MaxPacketSize);
2246 /* Pass the last RPL back to the adapter */
2247 tp->RplTail->FrameSize = 0;
2249 /* Reset the CSTAT field in the list. */
2250 tms380tr_write_rpl_status(tp->RplTail, RX_VALID | RX_FRAME_IRQ);
2252 /* Current RPL becomes last one in list. */
2253 tp->RplTail = tp->RplTail->NextRPLPtr;
2255 /* Inform adapter about RPL valid. */
2256 tms380tr_exec_sifcmd(dev, CMD_RX_VALID);
2263 * This function should be used whenever the status of any RPL must be
2264 * modified by the driver, because the compiler may otherwise change the
2265 * order of instructions such that writing the RPL status may be executed
2266 * at an undesirable time. When this function is used, the status is
2267 * always written when the function is called.
2269 static void tms380tr_write_rpl_status(RPL *rpl, unsigned int Status)
2271 rpl->Status = Status;
2277 * The function updates the statistic counters in mac->MacStat.
2278 * It differtiates between directed and broadcast/multicast ( ==functional)
2281 static void tms380tr_update_rcv_stats(struct net_local *tp, unsigned char DataPtr[],
2282 unsigned int Length)
2284 tp->MacStat.rx_packets++;
2285 tp->MacStat.rx_bytes += Length;
2287 /* Test functional bit */
2288 if(DataPtr[2] & GROUP_BIT)
2289 tp->MacStat.multicast++;
2294 static int tms380tr_set_mac_address(struct net_device *dev, void *addr)
2296 struct net_local *tp = netdev_priv(dev);
2297 struct sockaddr *saddr = addr;
2299 if (tp->AdapterOpenFlag || tp->AdapterVirtOpenFlag) {
2300 printk(KERN_WARNING "%s: Cannot set MAC/LAA address while card is open\n", dev->name);
2303 memcpy(dev->dev_addr, saddr->sa_data, dev->addr_len);
2307 #if TMS380TR_DEBUG > 0
2309 * Dump Packet (data)
2311 static void tms380tr_dump(unsigned char *Data, int length)
2315 for (i = 0, j = 0; i < length / 8; i++, j += 8)
2317 printk(KERN_DEBUG "%02x %02x %02x %02x %02x %02x %02x %02x\n",
2318 Data[j+0],Data[j+1],Data[j+2],Data[j+3],
2319 Data[j+4],Data[j+5],Data[j+6],Data[j+7]);
2326 void tmsdev_term(struct net_device *dev)
2328 struct net_local *tp;
2330 tp = netdev_priv(dev);
2331 dma_unmap_single(tp->pdev, tp->dmabuffer, sizeof(struct net_local),
2335 const struct net_device_ops tms380tr_netdev_ops = {
2336 .ndo_open = tms380tr_open,
2337 .ndo_stop = tms380tr_close,
2338 .ndo_start_xmit = tms380tr_send_packet,
2339 .ndo_tx_timeout = tms380tr_timeout,
2340 .ndo_get_stats = tms380tr_get_stats,
2341 .ndo_set_multicast_list = tms380tr_set_multicast_list,
2342 .ndo_set_mac_address = tms380tr_set_mac_address,
2344 EXPORT_SYMBOL(tms380tr_netdev_ops);
2346 int tmsdev_init(struct net_device *dev, struct device *pdev)
2348 struct net_local *tms_local;
2350 memset(netdev_priv(dev), 0, sizeof(struct net_local));
2351 tms_local = netdev_priv(dev);
2352 init_waitqueue_head(&tms_local->wait_for_tok_int);
2354 tms_local->dmalimit = *pdev->dma_mask;
2357 tms_local->pdev = pdev;
2358 tms_local->dmabuffer = dma_map_single(pdev, (void *)tms_local,
2359 sizeof(struct net_local), DMA_BIDIRECTIONAL);
2360 if (tms_local->dmabuffer + sizeof(struct net_local) >
2361 tms_local->dmalimit)
2363 printk(KERN_INFO "%s: Memory not accessible for DMA\n",
2369 dev->netdev_ops = &tms380tr_netdev_ops;
2370 dev->watchdog_timeo = HZ;
2375 EXPORT_SYMBOL(tms380tr_open);
2376 EXPORT_SYMBOL(tms380tr_close);
2377 EXPORT_SYMBOL(tms380tr_interrupt);
2378 EXPORT_SYMBOL(tmsdev_init);
2379 EXPORT_SYMBOL(tmsdev_term);
2380 EXPORT_SYMBOL(tms380tr_wait);
2384 static struct module *TMS380_module = NULL;
2386 int init_module(void)
2388 printk(KERN_DEBUG "%s", version);
2390 TMS380_module = &__this_module;
2394 void cleanup_module(void)
2396 TMS380_module = NULL;
2400 MODULE_LICENSE("GPL");