2 * tms380tr.h: TI TMS380 Token Ring driver for Linux
5 * - Christoph Goos <cgoos@syskonnect.de>
9 #ifndef __LINUX_TMS380TR_H
10 #define __LINUX_TMS380TR_H
14 #include <linux/interrupt.h>
16 /* module prototypes */
17 extern const struct net_device_ops tms380tr_netdev_ops
;
18 int tms380tr_open(struct net_device
*dev
);
19 int tms380tr_close(struct net_device
*dev
);
20 irqreturn_t
tms380tr_interrupt(int irq
, void *dev_id
);
21 int tmsdev_init(struct net_device
*dev
, struct device
*pdev
);
22 void tmsdev_term(struct net_device
*dev
);
23 void tms380tr_wait(unsigned long time
);
25 #define TMS380TR_MAX_ADAPTERS 7
27 #define SEND_TIMEOUT 10*HZ
29 #define TR_RCF_LONGEST_FRAME_MASK 0x0070
30 #define TR_RCF_FRAME4K 0x0030
32 /*------------------------------------------------------------------*/
33 /* Bit order for adapter communication with DMA */
34 /* -------------------------------------------------------------- */
35 /* Bit 8 | 9| 10| 11|| 12| 13| 14| 15|| 0| 1| 2| 3|| 4| 5| 6| 7| */
36 /* -------------------------------------------------------------- */
37 /* The bytes in a word must be byte swapped. Also, if a double */
38 /* word is used for storage, then the words, as well as the bytes, */
39 /* must be swapped. */
40 /* Bit order for adapter communication with DIO */
41 /* -------------------------------------------------------------- */
42 /* Bit 0 | 1| 2| 3|| 4| 5| 6| 7|| 8| 9| 10| 11|| 12| 13| 14| 15| */
43 /* -------------------------------------------------------------- */
44 /*------------------------------------------------------------------*/
46 /* Swap words of a long. */
47 #define SWAPW(x) (((x) << 16) | ((x) >> 16))
49 /* Get the low byte of a word. */
50 #define LOBYTE(w) ((unsigned char)(w))
52 /* Get the high byte of a word. */
53 #define HIBYTE(w) ((unsigned char)((unsigned short)(w) >> 8))
55 /* Get the low word of a long. */
56 #define LOWORD(l) ((unsigned short)(l))
58 /* Get the high word of a long. */
59 #define HIWORD(l) ((unsigned short)((unsigned long)(l) >> 16))
63 /* Token ring adapter I/O addresses for normal mode. */
66 * The SIF registers. Common to all adapters.
68 /* Basic SIF (SRSX = 0) */
69 #define SIFDAT 0x00 /* SIF/DMA data. */
70 #define SIFINC 0x02 /* IO Word data with auto increment. */
71 #define SIFINH 0x03 /* IO Byte data with auto increment. */
72 #define SIFADR 0x04 /* SIF/DMA Address. */
73 #define SIFCMD 0x06 /* SIF Command. */
74 #define SIFSTS 0x06 /* SIF Status. */
76 /* "Extended" SIF (SRSX = 1) */
77 #define SIFACL 0x08 /* SIF Adapter Control Register. */
78 #define SIFADD 0x0a /* SIF/DMA Address. -- 0x0a */
79 #define SIFADX 0x0c /* 0x0c */
80 #define DMALEN 0x0e /* SIF DMA length. -- 0x0e */
83 * POS Registers. Only for ISA Adapters.
85 #define POSREG 0x10 /* Adapter Program Option Select (POS)
86 * Register: base IO address + 16 byte.
88 #define POSREG_2 24L /* only for TR4/16+ adapter
89 * base IO address + 24 byte. -- 0x18
92 /* SIFCMD command codes (high-low) */
93 #define CMD_INTERRUPT_ADAPTER 0x8000 /* Cause internal adapter interrupt */
94 #define CMD_ADAPTER_RESET 0x4000 /* Hardware reset of adapter */
95 #define CMD_SSB_CLEAR 0x2000 /* Acknowledge to adapter to
98 #define CMD_EXECUTE 0x1000 /* Execute SCB command */
99 #define CMD_SCB_REQUEST 0x0800 /* Request adapter to interrupt
100 * system when SCB is available for
103 #define CMD_RX_CONTINUE 0x0400 /* Continue receive after odd pointer
104 * stop. (odd pointer receive method)
106 #define CMD_RX_VALID 0x0200 /* Now actual RPL is valid. */
107 #define CMD_TX_VALID 0x0100 /* Now actual TPL is valid. (valid
108 * bit receive/transmit method)
110 #define CMD_SYSTEM_IRQ 0x0080 /* Adapter-to-attached-system
111 * interrupt is reset.
113 #define CMD_CLEAR_SYSTEM_IRQ 0x0080 /* Clear SYSTEM_INTERRUPT bit.
114 * (write: 1=ignore, 0=reset)
116 #define EXEC_SOFT_RESET 0xFF00 /* adapter soft reset. (restart
117 * adapter after hardware reset)
121 /* ACL commands (high-low) */
122 #define ACL_SWHLDA 0x0800 /* Software hold acknowledge. */
123 #define ACL_SWDDIR 0x0400 /* Data transfer direction. */
124 #define ACL_SWHRQ 0x0200 /* Pseudo DMA operation. */
125 #define ACL_PSDMAEN 0x0100 /* Enable pseudo system DMA. */
126 #define ACL_ARESET 0x0080 /* Adapter hardware reset command.
127 * (held in reset condition as
128 * long as bit is set)
130 #define ACL_CPHALT 0x0040 /* Communication processor halt.
131 * (can only be set while ACL_ARESET
132 * bit is set; prevents adapter
133 * processor from executing code while
134 * downloading firmware)
136 #define ACL_BOOT 0x0020
137 #define ACL_SINTEN 0x0008 /* System interrupt enable/disable
138 * (1/0): can be written if ACL_ARESET
141 #define ACL_PEN 0x0004
143 #define ACL_NSELOUT0 0x0002
144 #define ACL_NSELOUT1 0x0001 /* NSELOUTx have a card-specific
145 * meaning for setting ring speed.
148 #define PS_DMA_MASK (ACL_SWHRQ | ACL_PSDMAEN)
151 /* SIFSTS register return codes (high-low) */
152 #define STS_SYSTEM_IRQ 0x0080 /* Adapter-to-attached-system
153 * interrupt is valid.
155 #define STS_INITIALIZE 0x0040 /* INITIALIZE status. (ready to
158 #define STS_TEST 0x0020 /* TEST status. (BUD not completed) */
159 #define STS_ERROR 0x0010 /* ERROR status. (unrecoverable
162 #define STS_MASK 0x00F0 /* Mask interesting status bits. */
163 #define STS_ERROR_MASK 0x000F /* Get Error Code by masking the
164 * interrupt code bits.
166 #define ADAPTER_INT_PTRS 0x0A00 /* Address offset of adapter internal
167 * pointers 01:0a00 (high-low) have to
168 * be read after init and before open.
172 /* Interrupt Codes (only MAC IRQs) */
173 #define STS_IRQ_ADAPTER_CHECK 0x0000 /* unrecoverable hardware or
176 #define STS_IRQ_RING_STATUS 0x0004 /* SSB is updated with ring status. */
177 #define STS_IRQ_LLC_STATUS 0x0005 /* Not used in MAC-only microcode */
178 #define STS_IRQ_SCB_CLEAR 0x0006 /* SCB clear, following an
181 #define STS_IRQ_TIMER 0x0007 /* Not normally used in MAC ucode */
182 #define STS_IRQ_COMMAND_STATUS 0x0008 /* SSB is updated with command
185 #define STS_IRQ_RECEIVE_STATUS 0x000A /* SSB is updated with receive
188 #define STS_IRQ_TRANSMIT_STATUS 0x000C /* SSB is updated with transmit
191 #define STS_IRQ_RECEIVE_PENDING 0x000E /* Not used in MAC-only microcode */
192 #define STS_IRQ_MASK 0x000F /* = STS_ERROR_MASK. */
195 /* TRANSMIT_STATUS completion code: (SSB.Parm[0]) */
196 #define COMMAND_COMPLETE 0x0080 /* TRANSMIT command completed
197 * (avoid this!) issue another transmit
198 * to send additional frames.
200 #define FRAME_COMPLETE 0x0040 /* Frame has been transmitted;
201 * INTERRUPT_FRAME bit was set in the
202 * CSTAT request; indication of possibly
203 * more than one frame transmissions!
204 * SSB.Parm[0-1]: 32 bit pointer to
207 #define LIST_ERROR 0x0020 /* Error in one of the TPLs that
208 * compose the frame; TRANSMIT
209 * terminated; Parm[1-2]: 32bit pointer
210 * to TPL which starts the error
211 * frame; error details in bits 8-13.
214 #define FRAME_SIZE_ERROR 0x8000 /* FRAME_SIZE does not equal the sum of
215 * the valid DATA_COUNT fields;
216 * FRAME_SIZE less than header plus
217 * information field. (15 bytes +
218 * routing field) Or if FRAME_SIZE
219 * was specified as zero in one list.
221 #define TX_THRESHOLD 0x4000 /* FRAME_SIZE greater than (BUFFER_SIZE
224 #define ODD_ADDRESS 0x2000 /* Odd forward pointer value is
225 * read on a list without END_FRAME
228 #define FRAME_ERROR 0x1000 /* START_FRAME bit (not) anticipated,
231 #define ACCESS_PRIORITY_ERROR 0x0800 /* Access priority requested has not
234 #define UNENABLED_MAC_FRAME 0x0400 /* MAC frame has source class of zero
235 * or MAC frame PCF ATTN field is
238 #define ILLEGAL_FRAME_FORMAT 0x0200 /* Bit 0 or FC field was set to one. */
242 * Since we need to support some functions even if the adapter is in a
243 * CLOSED state, we have a (pseudo-) command queue which holds commands
244 * that are outstandig to be executed.
246 * Each time a command completes, an interrupt occurs and the next
247 * command is executed. The command queue is actually a simple word with
248 * a bit for each outstandig command. Therefore the commands will not be
249 * executed in the order they have been queued.
251 * The following defines the command code bits and the command queue:
253 #define OC_OPEN 0x0001 /* OPEN command */
254 #define OC_TRANSMIT 0x0002 /* TRANSMIT command */
255 #define OC_TRANSMIT_HALT 0x0004 /* TRANSMIT_HALT command */
256 #define OC_RECEIVE 0x0008 /* RECEIVE command */
257 #define OC_CLOSE 0x0010 /* CLOSE command */
258 #define OC_SET_GROUP_ADDR 0x0020 /* SET_GROUP_ADDR command */
259 #define OC_SET_FUNCT_ADDR 0x0040 /* SET_FUNCT_ADDR command */
260 #define OC_READ_ERROR_LOG 0x0080 /* READ_ERROR_LOG command */
261 #define OC_READ_ADAPTER 0x0100 /* READ_ADAPTER command */
262 #define OC_MODIFY_OPEN_PARMS 0x0400 /* MODIFY_OPEN_PARMS command */
263 #define OC_RESTORE_OPEN_PARMS 0x0800 /* RESTORE_OPEN_PARMS command */
264 #define OC_SET_FIRST_16_GROUP 0x1000 /* SET_FIRST_16_GROUP command */
265 #define OC_SET_BRIDGE_PARMS 0x2000 /* SET_BRIDGE_PARMS command */
266 #define OC_CONFIG_BRIDGE_PARMS 0x4000 /* CONFIG_BRIDGE_PARMS command */
268 #define OPEN 0x0300 /* C: open command. S: completion. */
269 #define TRANSMIT 0x0400 /* C: transmit command. S: completion
270 * status. (reject: COMMAND_REJECT if
271 * adapter not opened, TRANSMIT already
272 * issued or address passed in the SCB
275 #define TRANSMIT_HALT 0x0500 /* C: interrupt TX TPL chain; if no
276 * TRANSMIT command issued, the command
277 * is ignored (completion with TRANSMIT
280 #define RECEIVE 0x0600 /* C: receive command. S: completion
281 * status. (reject: COMMAND_REJECT if
282 * adapter not opened, RECEIVE already
283 * issued or address passed in the SCB
286 #define CLOSE 0x0700 /* C: close adapter. S: completion.
287 * (COMMAND_REJECT if adapter not open)
289 #define SET_GROUP_ADDR 0x0800 /* C: alter adapter group address after
290 * OPEN. S: completion. (COMMAND_REJECT
291 * if adapter not open)
293 #define SET_FUNCT_ADDR 0x0900 /* C: alter adapter functional address
294 * after OPEN. S: completion.
295 * (COMMAND_REJECT if adapter not open)
297 #define READ_ERROR_LOG 0x0A00 /* C: read adapter error counters.
298 * S: completion. (command ignored
299 * if adapter not open!)
301 #define READ_ADAPTER 0x0B00 /* C: read data from adapter memory.
302 * (important: after init and before
303 * open!) S: completion. (ADAPTER_CHECK
304 * interrupt if undefined storage area
307 #define MODIFY_OPEN_PARMS 0x0D00 /* C: modify some adapter operational
308 * parameters. (bit correspondend to
309 * WRAP_INTERFACE is ignored)
310 * S: completion. (reject:
313 #define RESTORE_OPEN_PARMS 0x0E00 /* C: modify some adapter operational
314 * parameters. (bit correspondend
315 * to WRAP_INTERFACE is ignored)
316 * S: completion. (reject:
319 #define SET_FIRST_16_GROUP 0x0F00 /* C: alter the first two bytes in
320 * adapter group address.
321 * S: completion. (reject:
324 #define SET_BRIDGE_PARMS 0x1000 /* C: values and conditions for the
325 * adapter hardware to use when frames
326 * are copied for forwarding.
327 * S: completion. (reject:
330 #define CONFIG_BRIDGE_PARMS 0x1100 /* C: ..
331 * S: completion. (reject:
336 #define SPEED_16 16 /* Default transmission speed */
339 /* Initialization Parameter Block (IPB); word alignment necessary! */
340 #define BURST_SIZE 0x0018 /* Default burst size */
341 #define BURST_MODE 0x9F00 /* Burst mode enable */
342 #define DMA_RETRIES 0x0505 /* Magic DMA retry number... */
344 #define CYCLE_TIME 3 /* Default AT-bus cycle time: 500 ns
345 * (later adapter version: fix cycle time!)
347 #define LINE_SPEED_BIT 0x80
349 /* Macro definition for the wait function. */
350 #define ONE_SECOND_TICKS 1000000
351 #define HALF_SECOND (ONE_SECOND_TICKS / 2)
352 #define ONE_SECOND (ONE_SECOND_TICKS)
353 #define TWO_SECONDS (ONE_SECOND_TICKS * 2)
354 #define THREE_SECONDS (ONE_SECOND_TICKS * 3)
355 #define FOUR_SECONDS (ONE_SECOND_TICKS * 4)
356 #define FIVE_SECONDS (ONE_SECOND_TICKS * 5)
358 #define BUFFER_SIZE 2048 /* Buffers on Adapter */
362 unsigned short Init_Options
; /* Initialize with burst mode;
363 * LLC disabled. (MAC only)
366 /* Interrupt vectors the adapter places on attached system bus. */
367 u_int8_t CMD_Status_IV
; /* Interrupt vector: command status. */
368 u_int8_t TX_IV
; /* Interrupt vector: transmit. */
369 u_int8_t RX_IV
; /* Interrupt vector: receive. */
370 u_int8_t Ring_Status_IV
; /* Interrupt vector: ring status. */
371 u_int8_t SCB_Clear_IV
; /* Interrupt vector: SCB clear. */
372 u_int8_t Adapter_CHK_IV
; /* Interrupt vector: adapter check. */
374 u_int16_t RX_Burst_Size
; /* Max. number of transfer cycles. */
375 u_int16_t TX_Burst_Size
; /* During DMA burst; even value! */
376 u_int16_t DMA_Abort_Thrhld
; /* Number of DMA retries. */
378 u_int32_t SCB_Addr
; /* SCB address: even, word aligned, high-low */
379 u_int32_t SSB_Addr
; /* SSB address: even, word aligned, high-low */
384 * OPEN Command Parameter List (OCPL) (can be reused, if the adapter has to
387 #define BUFFER_SIZE 2048 /* Buffers on Adapter. */
388 #define TPL_SIZE 8+6*TX_FRAG_NUM /* Depending on fragments per TPL. */
389 #define RPL_SIZE 14 /* (with TI firmware v2.26 handling
390 * up to nine fragments possible)
392 #define TX_BUF_MIN 20 /* ??? (Stephan: calculation with */
393 #define TX_BUF_MAX 40 /* BUFFER_SIZE and MAX_FRAME_SIZE) ???
395 #define DISABLE_EARLY_TOKEN_RELEASE 0x1000
397 /* OPEN Options (high-low) */
398 #define WRAP_INTERFACE 0x0080 /* Inserting omitted for test
399 * purposes; transmit data appears
400 * as receive data. (useful for
401 * testing; change: CLOSE necessary)
403 #define DISABLE_HARD_ERROR 0x0040 /* On HARD_ERROR & TRANSMIT_BEACON
404 * no RING.STATUS interrupt.
406 #define DISABLE_SOFT_ERROR 0x0020 /* On SOFT_ERROR, no RING.STATUS
409 #define PASS_ADAPTER_MAC_FRAMES 0x0010 /* Passing unsupported MAC frames
412 #define PASS_ATTENTION_FRAMES 0x0008 /* All changed attention MAC frames are
413 * passed to the system.
415 #define PAD_ROUTING_FIELD 0x0004 /* Routing field is padded to 18
418 #define FRAME_HOLD 0x0002 /*Adapter waits for entire frame before
419 * initiating DMA transfer; otherwise:
420 * DMA transfer initiation if internal
423 #define CONTENDER 0x0001 /* Adapter participates in the monitor
424 * contention process.
426 #define PASS_BEACON_MAC_FRAMES 0x8000 /* Adapter passes beacon MAC frames
429 #define EARLY_TOKEN_RELEASE 0x1000 /* Only valid in 16 Mbps operation;
430 * 0 = ETR. (no effect in 4 Mbps
433 #define COPY_ALL_MAC_FRAMES 0x0400 /* All MAC frames are copied to
434 * the system. (after OPEN: duplicate
435 * address test (DAT) MAC frame is
436 * first received frame copied to the
439 #define COPY_ALL_NON_MAC_FRAMES 0x0200 /* All non MAC frames are copied to
442 #define PASS_FIRST_BUF_ONLY 0x0100 /* Passes only first internal buffer
443 * of each received frame; FrameSize
444 * of RPLs must contain internal
445 * BUFFER_SIZE bits for promiscous mode.
447 #define ENABLE_FULL_DUPLEX_SELECTION 0x2000
448 /* Enable the use of full-duplex
449 * settings with bits in byte 22 in
450 * ocpl. (new feature in firmware
454 /* Full-duplex settings */
455 #define OPEN_FULL_DUPLEX_OFF 0x0000
456 #define OPEN_FULL_DUPLEX_ON 0x00c0
457 #define OPEN_FULL_DUPLEX_AUTO 0x0080
459 #define PROD_ID_SIZE 18 /* Length of product ID. */
461 #define TX_FRAG_NUM 3 /* Number of fragments used in one TPL. */
462 #define TX_MORE_FRAGMENTS 0x8000 /* Bit set in DataCount to indicate more
463 * fragments following.
466 /* XXX is there some better way to do this? */
467 #define ISA_MAX_ADDRESS 0x00ffffff
468 #define PCI_MAX_ADDRESS 0xffffffff
472 u_int16_t OPENOptions
;
473 u_int8_t NodeAddr
[6]; /* Adapter node address; use ROM
476 u_int32_t GroupAddr
; /* Multicast: high order
479 u_int32_t FunctAddr
; /* High order bytes = 0xC000 */
480 __be16 RxListSize
; /* RPL size: 0 (=26), 14, 20 or
481 * 26 bytes read by the adapter.
482 * (Depending on the number of
485 __be16 TxListSize
; /* TPL size */
486 __be16 BufSize
; /* Is automatically rounded up to the
487 * nearest nK boundary.
489 u_int16_t FullDuplex
;
491 u_int8_t TXBufMin
; /* Number of adapter buffers reserved
492 * for transmission a minimum of 2
493 * buffers must be allocated.
495 u_int8_t TXBufMax
; /* Maximum number of adapter buffers
496 * for transmit; a minimum of 2 buffers
497 * must be available for receive.
500 u_int16_t ProdIDAddr
[2];/* Pointer to product ID. */
505 * SCB: adapter commands enabled by the host system started by writing
506 * CMD_INTERRUPT_ADAPTER | CMD_EXECUTE (|SCB_REQUEST) to the SIFCMD IO
507 * register. (special case: | CMD_SYSTEM_IRQ for initialization)
511 u_int16_t CMD
; /* Command code */
512 u_int16_t Parm
[2]; /* Pointer to Command Parameter Block */
513 } SCB
; /* System Command Block (32 bit physical address; big endian)*/
517 * SSB: adapter command return status can be evaluated after COMMAND_STATUS
518 * adapter to system interrupt after reading SSB, the availability of the SSB
519 * has to be told the adapter by writing CMD_INTERRUPT_ADAPTER | CMD_SSB_CLEAR
520 * in the SIFCMD IO register.
524 u_int16_t STS
; /* Status code */
525 u_int16_t Parm
[3]; /* Parameter or pointer to Status Parameter
528 } SSB
; /* System Status Block (big endian - physical address) */
532 unsigned short BurnedInAddrPtr
; /* Pointer to adapter burned in
535 unsigned short SoftwareLevelPtr
;/* Pointer to software level data. */
536 unsigned short AdapterAddrPtr
; /* Pointer to adapter addresses. */
537 unsigned short AdapterParmsPtr
; /* Pointer to adapter parameters. */
538 unsigned short MACBufferPtr
; /* Pointer to MAC buffer. (internal) */
539 unsigned short LLCCountersPtr
; /* Pointer to LLC counters. */
540 unsigned short SpeedFlagPtr
; /* Pointer to data rate flag.
543 unsigned short AdapterRAMPtr
; /* Pointer to adapter RAM found. (KB) */
544 } INTPTRS
; /* Adapter internal pointers */
548 u_int8_t Line_Error
; /* Line error: code violation in
549 * frame or in a token, or FCS error.
551 u_int8_t Internal_Error
; /* IBM specific. (Reserved_1) */
552 u_int8_t Burst_Error
;
553 u_int8_t ARI_FCI_Error
; /* ARI/FCI bit zero in AMP or
556 u_int8_t AbortDelimeters
; /* IBM specific. (Reserved_2) */
558 u_int8_t Lost_Frame_Error
; /* Receive of end of transmitted
561 u_int8_t Rx_Congest_Error
; /* Adapter in repeat mode has not
562 * enough buffer space to copy incoming
565 u_int8_t Frame_Copied_Error
; /* ARI bit not zero in frame
566 * addressed to adapter.
568 u_int8_t Frequency_Error
; /* IBM specific. (Reserved_4) */
569 u_int8_t Token_Error
; /* (active only in monitor station) */
571 u_int8_t DMA_Bus_Error
; /* DMA bus errors not exceeding the
574 u_int8_t DMA_Parity_Error
; /* DMA parity errors not exceeding
575 * the abort thresholds.
577 } ERRORTAB
; /* Adapter error counters */
581 /*--------------------- Send and Receive definitions -------------------*/
584 __be16 DataCount
; /* Value 0, even and odd values are
585 * permitted; value is unaltered most
586 * significant bit set: following
587 * fragments last fragment: most
588 * significant bit is not evaluated.
591 __be32 DataAddr
; /* Pointer to frame data fragment;
597 #define MAX_FRAG_NUMBERS 9 /* Maximal number of fragments possible to use
598 * in one RPL/TPL. (depending on TI firmware
603 * AC (1), FC (1), Dst (6), Src (6), RIF (18), Data (4472) = 4504
604 * The packet size can be one of the follows: 548, 1502, 2084, 4504, 8176,
605 * 11439, 17832. Refer to TMS380 Second Generation Token Ring User's Guide
608 #define HEADER_SIZE (1 + 1 + 6 + 6)
610 #define MIN_DATA_SIZE 516
611 #define DEFAULT_DATA_SIZE 4472
612 #define MAX_DATA_SIZE 17800
614 #define DEFAULT_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + DEFAULT_DATA_SIZE)
615 #define MIN_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + MIN_DATA_SIZE)
616 #define MAX_PACKET_SIZE (HEADER_SIZE + SRC_SIZE + MAX_DATA_SIZE)
619 * Macros to deal with the frame status field.
621 #define AC_NOT_RECOGNIZED 0x00
622 #define GROUP_BIT 0x80
623 #define GET_TRANSMIT_STATUS_HIGH_BYTE(Ts) ((unsigned char)((Ts) >> 8))
624 #define GET_FRAME_STATUS_HIGH_AC(Fs) ((unsigned char)(((Fs) & 0xC0) >> 6))
625 #define GET_FRAME_STATUS_LOW_AC(Fs) ((unsigned char)(((Fs) & 0x0C) >> 2))
626 #define DIRECTED_FRAME(Context) (!((Context)->MData[2] & GROUP_BIT))
629 /*--------------------- Send Functions ---------------------------------*/
630 /* define TX_CSTAT _REQUEST (R) and _COMPLETE (C) values (high-low) */
632 #define TX_VALID 0x0080 /* R: set via TRANSMIT.VALID interrupt.
633 * C: always reset to zero!
635 #define TX_FRAME_COMPLETE 0x0040 /* R: must be reset to zero.
638 #define TX_START_FRAME 0x0020 /* R: start of a frame: 1
641 #define TX_END_FRAME 0x0010 /* R: end of a frame: 1
644 #define TX_FRAME_IRQ 0x0008 /* R: request interrupt generation
645 * after transmission.
648 #define TX_ERROR 0x0004 /* R: reserved.
649 * C: set to one if Error occurred.
651 #define TX_INTERFRAME_WAIT 0x0004
652 #define TX_PASS_CRC 0x0002 /* R: set if CRC value is already
653 * calculated. (valid only in
657 #define TX_PASS_SRC_ADDR 0x0001 /* R: adapter uses explicit frame
658 * source address and does not overwrite
659 * with the adapter node address.
660 * (valid only in FRAME_START TPL)
664 #define TX_STRIP_FS 0xFF00 /* R: reserved.
665 * C: if no Transmission Error,
666 * field contains copy of FS byte after
667 * stripping of frame.
671 * Structure of Transmit Parameter Lists (TPLs) (only one frame every TPL,
672 * but possibly multiple TPLs for one frame) the length of the TPLs has to be
673 * initialized in the OPL. (OPEN parameter list)
675 #define TPL_NUM 3 /* Number of Transmit Parameter Lists.
680 typedef struct s_TPL TPL
;
682 struct s_TPL
{ /* Transmit Parameter List (align on even word boundaries) */
683 __be32 NextTPLAddr
; /* Pointer to next TPL in chain; if
684 * pointer is odd: this is the last
685 * TPL. Pointing to itself can cause
688 volatile u_int16_t Status
; /* Initialized by the adapter:
689 * CSTAT_REQUEST important: update least
690 * significant bit first! Set by the
691 * adapter: CSTAT_COMPLETE status.
693 __be16 FrameSize
; /* Number of bytes to be transmitted
694 * as a frame including AC/FC,
695 * Destination, Source, Routing field
696 * not including CRC, FS, End Delimiter
697 * (valid only if START_FRAME bit in
698 * CSTAT nonzero) must not be zero in
699 * any list; maximum value: (BUFFER_SIZE
700 * - 8) * TX_BUF_MAX sum of DataCount
701 * values in FragmentList must equal
702 * Frame_Size value in START_FRAME TPL!
703 * frame data fragment list.
706 /* TPL/RPL size in OPEN parameter list depending on maximal
707 * numbers of fragments used in one parameter list.
709 Fragment FragList
[TX_FRAG_NUM
]; /* Maximum: nine frame fragments in one
710 * TPL actual version of firmware: 9
711 * fragments possible.
715 /* Special proprietary data and precalculations */
717 TPL
*NextTPLPtr
; /* Pointer to next TPL in chain. */
718 unsigned char *MData
;
720 unsigned char TPLIndex
;
721 volatile unsigned char BusyFlag
;/* Flag: TPL busy? */
722 dma_addr_t DMABuff
; /* DMA IO bus address from dma_map */
725 /* ---------------------Receive Functions-------------------------------*
726 * define RECEIVE_CSTAT_REQUEST (R) and RECEIVE_CSTAT_COMPLETE (C) values.
729 #define RX_VALID 0x0080 /* R: set; tell adapter with
730 * RECEIVE.VALID interrupt.
733 #define RX_FRAME_COMPLETE 0x0040 /* R: must be reset to zero,
736 #define RX_START_FRAME 0x0020 /* R: must be reset to zero.
737 * C: set to one on the list.
739 #define RX_END_FRAME 0x0010 /* R: must be reset to zero.
740 * C: set to one on the list
741 * that ends the frame.
743 #define RX_FRAME_IRQ 0x0008 /* R: request interrupt generation
747 #define RX_INTERFRAME_WAIT 0x0004 /* R: after receiving a frame:
748 * interrupt and wait for a
752 #define RX_PASS_CRC 0x0002 /* R: if set, the adapter includes
753 * the CRC in data passed. (last four
754 * bytes; valid only if FRAME_START is
756 * C: set, if CRC is included in
759 #define RX_PASS_SRC_ADDR 0x0001 /* R: adapter uses explicit frame
760 * source address and does not
761 * overwrite with the adapter node
762 * address. (valid only if FRAME_START
766 #define RX_RECEIVE_FS 0xFC00 /* R: reserved; must be reset to zero.
767 * C: on lists with START_FRAME, field
768 * contains frame status field from
769 * received frame; otherwise cleared.
771 #define RX_ADDR_MATCH 0x0300 /* R: reserved; must be reset to zero.
772 * C: address match code mask.
774 #define RX_STATUS_MASK 0x00FF /* Mask for receive status bits. */
776 #define RX_INTERN_ADDR_MATCH 0x0100 /* C: internally address match. */
777 #define RX_EXTERN_ADDR_MATCH 0x0200 /* C: externally matched via
778 * XMATCH/XFAIL interface.
780 #define RX_INTEXT_ADDR_MATCH 0x0300 /* C: internally and externally
783 #define RX_READY (RX_VALID | RX_FRAME_IRQ) /* Ready for receive. */
785 /* Constants for Command Status Interrupt.
786 * COMMAND_REJECT status field bit functions (SSB.Parm[0])
788 #define ILLEGAL_COMMAND 0x0080 /* Set if an unknown command
789 * is issued to the adapter
791 #define ADDRESS_ERROR 0x0040 /* Set if any address field in
792 * the SCB is odd. (not word aligned)
794 #define ADAPTER_OPEN 0x0020 /* Command issued illegal with
797 #define ADAPTER_CLOSE 0x0010 /* Command issued illegal with
800 #define SAME_COMMAND 0x0008 /* Command issued with same command
804 /* OPEN_COMPLETION values (SSB.Parm[0], MSB) */
805 #define NODE_ADDR_ERROR 0x0040 /* Wrong address or BIA read
808 #define LIST_SIZE_ERROR 0x0020 /* If List_Size value not in 0,
811 #define BUF_SIZE_ERROR 0x0010 /* Not enough available memory for
814 #define TX_BUF_COUNT_ERROR 0x0004 /* Remaining receive buffers less than
817 #define OPEN_ERROR 0x0002 /* Error during ring insertion; more
818 * information in bits 8-15.
821 /* Standard return codes */
822 #define GOOD_COMPLETION 0x0080 /* =OPEN_SUCCESSFULL */
823 #define INVALID_OPEN_OPTION 0x0001 /* OPEN options are not supported by
827 /* OPEN phases; details of OPEN_ERROR (SSB.Parm[0], LSB) */
828 #define OPEN_PHASES_MASK 0xF000 /* Check only the bits 8-11. */
829 #define LOBE_MEDIA_TEST 0x1000
830 #define PHYSICAL_INSERTION 0x2000
831 #define ADDRESS_VERIFICATION 0x3000
832 #define PARTICIPATION_IN_RING_POLL 0x4000
833 #define REQUEST_INITIALISATION 0x5000
834 #define FULLDUPLEX_CHECK 0x6000
836 /* OPEN error codes; details of OPEN_ERROR (SSB.Parm[0], LSB) */
837 #define OPEN_ERROR_CODES_MASK 0x0F00 /* Check only the bits 12-15. */
838 #define OPEN_FUNCTION_FAILURE 0x0100 /* Unable to transmit to itself or
839 * frames received before insertion.
841 #define OPEN_SIGNAL_LOSS 0x0200 /* Signal loss condition detected at
844 #define OPEN_TIMEOUT 0x0500 /* Insertion timer expired before
847 #define OPEN_RING_FAILURE 0x0600 /* Unable to receive own ring purge
850 #define OPEN_RING_BEACONING 0x0700 /* Beacon MAC frame received after
853 #define OPEN_DUPLICATE_NODEADDR 0x0800 /* Other station in ring found
854 * with the same address.
856 #define OPEN_REQUEST_INIT 0x0900 /* RPS present but does not respond. */
857 #define OPEN_REMOVE_RECEIVED 0x0A00 /* Adapter received a remove adapter
860 #define OPEN_FULLDUPLEX_SET 0x0D00 /* Got this with full duplex on when
861 * trying to connect to a normal ring.
864 /* SET_BRIDGE_PARMS return codes: */
865 #define BRIDGE_INVALID_MAX_LEN 0x4000 /* MAX_ROUTING_FIELD_LENGTH odd,
866 * less than 6 or > 30.
868 #define BRIDGE_INVALID_SRC_RING 0x2000 /* SOURCE_RING number zero, too large
871 #define BRIDGE_INVALID_TRG_RING 0x1000 /* TARGET_RING number zero, too large
874 #define BRIDGE_INVALID_BRDGE_NO 0x0800 /* BRIDGE_NUMBER too large. */
875 #define BRIDGE_INVALID_OPTIONS 0x0400 /* Invalid bridge options. */
876 #define BRIDGE_DIAGS_FAILED 0x0200 /* Diagnostics of TMS380SRA failed. */
877 #define BRIDGE_NO_SRA 0x0100 /* The TMS380SRA does not exist in HW
882 * Bring Up Diagnostics error codes.
884 #define BUD_INITIAL_ERROR 0x0
885 #define BUD_CHECKSUM_ERROR 0x1
886 #define BUD_ADAPTER_RAM_ERROR 0x2
887 #define BUD_INSTRUCTION_ERROR 0x3
888 #define BUD_CONTEXT_ERROR 0x4
889 #define BUD_PROTOCOL_ERROR 0x5
890 #define BUD_INTERFACE_ERROR 0x6
893 #define BUD_MAX_RETRIES 3
894 #define BUD_MAX_LOOPCNT 6
895 #define BUD_TIMEOUT 3000
897 /* Initialization constants */
898 #define INIT_MAX_RETRIES 3 /* Maximum three retries. */
899 #define INIT_MAX_LOOPCNT 22 /* Maximum loop counts. */
901 /* RING STATUS field values (high/low) */
902 #define SIGNAL_LOSS 0x0080 /* Loss of signal on the ring
905 #define HARD_ERROR 0x0040 /* Transmitting or receiving beacon
908 #define SOFT_ERROR 0x0020 /* Report error MAC frame
911 #define TRANSMIT_BEACON 0x0010 /* Transmitting beacon frames on the
914 #define LOBE_WIRE_FAULT 0x0008 /* Open or short circuit in the
915 * cable to concentrator; adapter
918 #define AUTO_REMOVAL_ERROR 0x0004 /* Lobe wrap test failed, deinserted;
921 #define REMOVE_RECEIVED 0x0001 /* Received a remove ring station MAC
922 * MAC frame request; adapter closed.
924 #define COUNTER_OVERFLOW 0x8000 /* Overflow of one of the adapters
925 * error counters; READ.ERROR.LOG.
927 #define SINGLE_STATION 0x4000 /* Adapter is the only station on the
930 #define RING_RECOVERY 0x2000 /* Claim token MAC frames on the ring;
931 * reset after ring purge frame.
934 #define ADAPTER_CLOSED (LOBE_WIRE_FAULT | AUTO_REMOVAL_ERROR |\
937 /* Adapter_check_block.Status field bit assignments: */
938 #define DIO_PARITY 0x8000 /* Adapter detects bad parity
939 * through direct I/O access.
941 #define DMA_READ_ABORT 0x4000 /* Aborting DMA read operation
942 * from system Parm[0]: 0=timeout,
943 * 1=parity error, 2=bus error;
944 * Parm[1]: 32 bit pointer to host
945 * system address at failure.
947 #define DMA_WRITE_ABORT 0x2000 /* Aborting DMA write operation
948 * to system. (parameters analogous to
951 #define ILLEGAL_OP_CODE 0x1000 /* Illegal operation code in the
952 * the adapters firmware Parm[0]-2:
953 * communications processor registers
956 #define PARITY_ERRORS 0x0800 /* Adapter detects internal bus
959 #define RAM_DATA_ERROR 0x0080 /* Valid only during RAM testing;
960 * RAM data error Parm[0-1]: 32 bit
961 * pointer to RAM location.
963 #define RAM_PARITY_ERROR 0x0040 /* Valid only during RAM testing;
964 * RAM parity error Parm[0-1]: 32 bit
965 * pointer to RAM location.
967 #define RING_UNDERRUN 0x0020 /* Internal DMA underrun when
968 * transmitting onto ring.
970 #define INVALID_IRQ 0x0008 /* Unrecognized interrupt generated
971 * internal to adapter Parm[0-2]:
972 * adapter register R13-R15.
974 #define INVALID_ERROR_IRQ 0x0004 /* Unrecognized error interrupt
975 * generated Parm[0-2]: adapter register
978 #define INVALID_XOP 0x0002 /* Unrecognized XOP request in
979 * communication processor Parm[0-2]:
980 * adapter register R13-R15.
982 #define CHECKADDR 0x05E0 /* Adapter check status information
985 #define ROM_PAGE_0 0x0000 /* Adapter ROM page 0. */
988 * RECEIVE.STATUS interrupt result SSB values: (high-low)
989 * (RECEIVE_COMPLETE field bit definitions in SSB.Parm[0])
991 #define RX_COMPLETE 0x0080 /* SSB.Parm[0]; SSB.Parm[1]: 32
992 * bit pointer to last RPL.
994 #define RX_SUSPENDED 0x0040 /* SSB.Parm[0]; SSB.Parm[1]: 32
995 * bit pointer to RPL with odd
999 /* Valid receive CSTAT: */
1000 #define RX_FRAME_CONTROL_BITS (RX_VALID | RX_START_FRAME | RX_END_FRAME | \
1002 #define VALID_SINGLE_BUFFER_FRAME (RX_START_FRAME | RX_END_FRAME | \
1005 typedef enum SKB_STAT SKB_STAT
;
1012 /* Receive Parameter List (RPL) The length of the RPLs has to be initialized
1013 * in the OPL. (OPEN parameter list)
1017 #define RX_FRAG_NUM 1 /* Maximal number of used fragments in one RPL.
1018 * (up to firmware v2.24: 3, now: up to 9)
1022 typedef struct s_RPL RPL
;
1023 struct s_RPL
{ /* Receive Parameter List */
1024 __be32 NextRPLAddr
; /* Pointer to next RPL in chain
1025 * (normalized = physical 32 bit
1026 * address) if pointer is odd: this
1027 * is last RPL. Pointing to itself can
1030 volatile u_int16_t Status
; /* Set by creation of Receive Parameter
1031 * List RECEIVE_CSTAT_COMPLETE set by
1032 * adapter in lists that start or end
1035 volatile __be16 FrameSize
; /* Number of bytes received as a
1036 * frame including AC/FC, Destination,
1037 * Source, Routing field not including
1038 * CRC, FS (Frame Status), End Delimiter
1039 * (valid only if START_FRAME bit in
1040 * CSTAT nonzero) must not be zero in
1041 * any list; maximum value: (BUFFER_SIZE
1042 * - 8) * TX_BUF_MAX sum of DataCount
1043 * values in FragmentList must equal
1044 * Frame_Size value in START_FRAME TPL!
1045 * frame data fragment list
1048 /* TPL/RPL size in OPEN parameter list depending on maximal numbers
1049 * of fragments used in one parameter list.
1051 Fragment FragList
[RX_FRAG_NUM
]; /* Maximum: nine frame fragments in
1052 * one TPL. Actual version of firmware:
1053 * 9 fragments possible.
1057 /* Special proprietary data and precalculations. */
1058 RPL
*NextRPLPtr
; /* Logical pointer to next RPL in chain. */
1059 unsigned char *MData
;
1060 struct sk_buff
*Skb
;
1063 dma_addr_t DMABuff
; /* DMA IO bus address from dma_map */
1066 /* Information that need to be kept for each board. */
1067 typedef struct net_local
{
1069 IPB ipb
; /* Initialization Parameter Block. */
1070 SCB scb
; /* System Command Block: system to adapter
1073 SSB ssb
; /* System Status Block: adapter to system
1076 OPB ocpl
; /* Open Options Parameter Block. */
1078 ERRORTAB errorlogtable
; /* Adapter statistic error counters.
1079 * (read from adapter memory)
1081 unsigned char ProductID
[PROD_ID_SIZE
+ 1]; /* Product ID */
1087 unsigned char LocalTxBuffers
[TPL_NUM
][DEFAULT_PACKET_SIZE
];
1092 unsigned char LocalRxBuffers
[RPL_NUM
][DEFAULT_PACKET_SIZE
];
1094 struct device
*pdev
;
1096 unsigned char ScbInUse
;
1097 unsigned short CMDqueue
;
1099 unsigned long AdapterOpenFlag
:1;
1100 unsigned long AdapterVirtOpenFlag
:1;
1101 unsigned long OpenCommandIssued
:1;
1102 unsigned long TransmitCommandActive
:1;
1103 unsigned long TransmitHaltScheduled
:1;
1104 unsigned long HaltInProgress
:1;
1105 unsigned long LobeWireFaultLogged
:1;
1106 unsigned long ReOpenInProgress
:1;
1107 unsigned long Sleeping
:1;
1109 unsigned long LastOpenStatus
;
1110 unsigned short CurrentRingStatus
;
1111 unsigned long MaxPacketSize
;
1113 unsigned long StartTime
;
1114 unsigned long LastSendTime
;
1116 struct tr_statistics MacStat
; /* MAC statistics structure */
1118 unsigned long dmalimit
; /* the max DMA address (ie, ISA) */
1119 dma_addr_t dmabuffer
; /* the DMA bus address corresponding to
1120 priv. Might be different from virt_to_bus()
1121 for architectures with IO MMU (Alpha) */
1123 struct timer_list timer
;
1125 wait_queue_head_t wait_for_tok_int
;
1127 INTPTRS intptrs
; /* Internal adapter pointer. Must be read
1128 * before OPEN command.
1130 unsigned short (*setnselout
)(struct net_device
*);
1131 unsigned short (*sifreadb
)(struct net_device
*, unsigned short);
1132 void (*sifwriteb
)(struct net_device
*, unsigned short, unsigned short);
1133 unsigned short (*sifreadw
)(struct net_device
*, unsigned short);
1134 void (*sifwritew
)(struct net_device
*, unsigned short, unsigned short);
1136 spinlock_t lock
; /* SMP protection */
1140 #endif /* __KERNEL__ */
1141 #endif /* __LINUX_TMS380TR_H */