2 #include "mlmetxrx_f.h"
9 Mds_initial(struct wbsoft_priv
* adapter
)
11 struct wb35_mds
*pMds
= &adapter
->Mds
;
13 pMds
->TxPause
= false;
14 pMds
->TxRTSThreshold
= DEFAULT_RTSThreshold
;
15 pMds
->TxFragmentThreshold
= DEFAULT_FRAGMENT_THRESHOLD
;
17 return hal_get_tx_buffer( &adapter
->sHwData
, &pMds
->pTxBuffer
);
21 Mds_Destroy(struct wbsoft_priv
* adapter
)
25 static void Mds_DurationSet(struct wbsoft_priv
*adapter
, struct wb35_descriptor
*pDes
, u8
*buffer
)
29 u16 Duration
, NextBodyLen
, OffsetSize
;
31 unsigned char CTS_on
= false, RTS_on
= false;
32 PT00_DESCRIPTOR pNextT00
;
34 unsigned char boGroupAddr
= false;
36 OffsetSize
= pDes
->FragmentThreshold
+ 32 + 3;
38 Rate
= pDes
->TxRate
>> 1;
42 pT00
= (PT00_DESCRIPTOR
)buffer
;
43 pT01
= (PT01_DESCRIPTOR
)(buffer
+4);
44 pNextT00
= (PT00_DESCRIPTOR
)(buffer
+OffsetSize
);
46 if( buffer
[ DOT_11_DA_OFFSET
+8 ] & 0x1 ) // +8 for USB hdr
49 //========================================
50 // Set RTS/CTS mechanism
51 //========================================
54 //NOTE : If the protection mode is enabled and the MSDU will be fragmented,
55 // the tx rates of MPDUs will all be DSSS rates. So it will not use
56 // CTS-to-self in this case. CTS-To-self will only be used when without
57 // fragmentation. -- 20050112
58 BodyLen
= (u16
)pT00
->T00_frame_length
; //include 802.11 header
61 if( BodyLen
>= CURRENT_RTS_THRESHOLD
)
62 RTS_on
= true; // Using RTS
65 if( pT01
->T01_modulation_type
) // Is using OFDM
67 if( CURRENT_PROTECT_MECHANISM
) // Is using protect
68 CTS_on
= true; // Using CTS
73 if( RTS_on
|| CTS_on
)
75 if( pT01
->T01_modulation_type
) // Is using OFDM
78 // 2 SIFS + DATA transmit time + 1 ACK
79 // ACK Rate : 24 Mega bps
80 // ACK frame length = 14 bytes
81 Duration
= 2*DEFAULT_SIFSTIME
+
82 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
+
83 ((BodyLen
*8 + 22 + Rate
*4 - 1)/(Rate
*4))*Tsym
+
84 ((112 + 22 + 95)/96)*Tsym
;
89 // 2 SIFS + DATA transmit time + 1 ACK
91 // ACK frame length = 14 bytes
92 if( pT01
->T01_plcp_header_length
) //long preamble
93 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
*2;
95 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
*2;
97 Duration
+= ( ((BodyLen
+ 14)*8 + Rate
-1) / Rate
+
103 if( pT01
->T01_modulation_type
) // Is using OFDM
105 //CTS + 1 SIFS + CTS duration
106 //CTS Rate : 24 Mega bps
107 //CTS frame length = 14 bytes
108 Duration
+= (DEFAULT_SIFSTIME
+
109 PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
+
110 ((112 + 22 + 95)/96)*Tsym
);
114 //CTS + 1 SIFS + CTS duration
115 //CTS Rate : ?? Mega bps
116 //CTS frame length = 14 bytes
117 if( pT01
->T01_plcp_header_length
) //long preamble
118 Duration
+= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
;
120 Duration
+= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
;
122 Duration
+= ( ((112 + Rate
-1) / Rate
) + DEFAULT_SIFSTIME
);
126 // Set the value into USB descriptor
127 pT01
->T01_add_rts
= RTS_on
? 1 : 0;
128 pT01
->T01_add_cts
= CTS_on
? 1 : 0;
129 pT01
->T01_rts_cts_duration
= Duration
;
132 //=====================================
133 // Fill the more fragment descriptor
134 //=====================================
139 for( i
=pDes
->FragmentCount
-1; i
>0; i
-- )
141 NextBodyLen
= (u16
)pNextT00
->T00_frame_length
;
142 NextBodyLen
+= 4; //CRC
144 if( pT01
->T01_modulation_type
)
147 // data transmit time + 3 SIFS + 2 ACK
149 // ACK frame length = 14 bytes, tx rate = 24M
150 Duration
= PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
* 3;
151 Duration
+= (((NextBodyLen
*8 + 22 + Rate
*4 - 1)/(Rate
*4)) * Tsym
+
152 (((2*14)*8 + 22 + 95)/96)*Tsym
+
158 // data transmit time + 2 ACK + 3 SIFS
160 // ACK frame length = 14 bytes
162 if( pT01
->T01_plcp_header_length
) //long preamble
163 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
*3;
165 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
*3;
167 Duration
+= ( ((NextBodyLen
+ (2*14))*8 + Rate
-1) / Rate
+
168 DEFAULT_SIFSTIME
*3 );
171 ((u16
*)buffer
)[5] = cpu_to_le16(Duration
);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
173 //----20061009 add by anson's endian
174 pNextT00
->value
= cpu_to_le32(pNextT00
->value
);
175 pT01
->value
= cpu_to_le32( pT01
->value
);
176 //----end 20061009 add by anson's endian
178 buffer
+= OffsetSize
;
179 pT01
= (PT01_DESCRIPTOR
)(buffer
+4);
180 if (i
!= 1) //The last fragment will not have the next fragment
181 pNextT00
= (PT00_DESCRIPTOR
)(buffer
+OffsetSize
);
184 //=====================================
185 // Fill the last fragment descriptor
186 //=====================================
187 if( pT01
->T01_modulation_type
)
191 // Rate : 24 Mega bps
192 // ACK frame length = 14 bytes
193 Duration
= PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
;
194 //The Tx rate of ACK use 24M
195 Duration
+= (((112 + 22 + 95)/96)*Tsym
+ DEFAULT_SIFSTIME
);
201 // Rate : ?? Mega bps
202 // ACK frame length = 14 bytes(112 bits)
203 if( pT01
->T01_plcp_header_length
) //long preamble
204 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
;
206 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
;
208 Duration
+= ( (112 + Rate
-1)/Rate
+ DEFAULT_SIFSTIME
);
212 ((u16
*)buffer
)[5] = cpu_to_le16(Duration
);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
213 pT00
->value
= cpu_to_le32(pT00
->value
);
214 pT01
->value
= cpu_to_le32(pT01
->value
);
219 // The function return the 4n size of usb pk
220 static u16
Mds_BodyCopy(struct wbsoft_priv
*adapter
, struct wb35_descriptor
*pDes
, u8
*TargetBuffer
)
222 PT00_DESCRIPTOR pT00
;
223 struct wb35_mds
*pMds
= &adapter
->Mds
;
228 u16 SizeLeft
, CopySize
, CopyLeft
, stmp
;
229 u8 buf_index
, FragmentCount
= 0;
232 // Copy fragment body
233 buffer
= TargetBuffer
; // shift 8B usb + 24B 802.11
234 SizeLeft
= pDes
->buffer_total_size
;
235 buf_index
= pDes
->buffer_start_index
;
237 pT00
= (PT00_DESCRIPTOR
)buffer
;
239 pT00
= (PT00_DESCRIPTOR
)buffer
;
241 if (SizeLeft
> pDes
->FragmentThreshold
) {
242 CopySize
= pDes
->FragmentThreshold
;
243 pT00
->T00_frame_length
= 24 + CopySize
;//Set USB length
245 pT00
->T00_frame_length
= 24 + SizeLeft
;//Set USB length
247 SizeLeft
-= CopySize
;
250 pctmp
= (u8
*)( buffer
+ 8 + DOT_11_SEQUENCE_OFFSET
);
252 *pctmp
|= FragmentCount
;//931130.5.m
254 pT00
->T00_first_mpdu
= 1;
256 buffer
+= 32; // 8B usb + 24B 802.11 header
261 stmp
&= ~0x03;//4n Alignment
262 Size
+= stmp
;// Current 4n offset of mpdu
266 src_buffer
= pDes
->buffer_address
[buf_index
];
268 if (CopySize
>= pDes
->buffer_size
[buf_index
]) {
269 CopyLeft
= pDes
->buffer_size
[buf_index
];
271 // Get the next buffer of descriptor
273 buf_index
%= MAX_DESCRIPTOR_BUFFER_INDEX
;
275 u8
*pctmp
= pDes
->buffer_address
[buf_index
];
277 pDes
->buffer_address
[buf_index
] = pctmp
;
278 pDes
->buffer_size
[buf_index
] -= CopySize
;
281 memcpy(buffer
, src_buffer
, CopyLeft
);
283 CopySize
-= CopyLeft
;
289 pMds
->MicWriteAddress
[ pMds
->MicWriteIndex
] = buffer
- pMds
->MicAdd
;
290 pMds
->MicWriteSize
[ pMds
->MicWriteIndex
] = pMds
->MicAdd
;
293 else if( SizeLeft
< 8 ) //931130.5.p
295 pMds
->MicAdd
= SizeLeft
;
296 pMds
->MicWriteAddress
[ pMds
->MicWriteIndex
] = buffer
- ( 8 - SizeLeft
);
297 pMds
->MicWriteSize
[ pMds
->MicWriteIndex
] = 8 - SizeLeft
;
298 pMds
->MicWriteIndex
++;
302 // Does it need to generate the new header for next mpdu?
304 buffer
= TargetBuffer
+ Size
; // Get the next 4n start address
305 memcpy( buffer
, TargetBuffer
, 32 );//Copy 8B USB +24B 802.11
306 pT00
= (PT00_DESCRIPTOR
)buffer
;
307 pT00
->T00_first_mpdu
= 0;
313 pT00
->T00_last_mpdu
= 1;
314 pT00
->T00_IsLastMpdu
= 1;
315 buffer
= (u8
*)pT00
+ 8; // +8 for USB hdr
316 buffer
[1] &= ~0x04; // Clear more frag bit of 802.11 frame control
317 pDes
->FragmentCount
= FragmentCount
; // Update the correct fragment number
321 static void Mds_HeaderCopy(struct wbsoft_priv
* adapter
, struct wb35_descriptor
*pDes
, u8
*TargetBuffer
)
323 struct wb35_mds
*pMds
= &adapter
->Mds
;
324 u8
*src_buffer
= pDes
->buffer_address
[0];//931130.5.g
325 PT00_DESCRIPTOR pT00
;
326 PT01_DESCRIPTOR pT01
;
328 u8 i
, ctmp1
, ctmp2
, ctmpf
;
329 u16 FragmentThreshold
= CURRENT_FRAGMENT_THRESHOLD
;
332 stmp
= pDes
->buffer_total_size
;
334 // Set USB header 8 byte
336 pT00
= (PT00_DESCRIPTOR
)TargetBuffer
;
338 pT01
= (PT01_DESCRIPTOR
)TargetBuffer
;
341 pT00
->value
= 0;// Clear
342 pT01
->value
= 0;// Clear
344 pT00
->T00_tx_packet_id
= pDes
->Descriptor_ID
;// Set packet ID
345 pT00
->T00_header_length
= 24;// Set header length
346 pT01
->T01_retry_abort_ebable
= 1;//921013 931130.5.h
349 pT01
->T01_wep_id
= 0;
351 FragmentThreshold
= DEFAULT_FRAGMENT_THRESHOLD
; //Do not fragment
352 // Copy full data, the 1'st buffer contain all the data 931130.5.j
353 memcpy( TargetBuffer
, src_buffer
, DOT_11_MAC_HEADER_SIZE
);// Copy header
354 pDes
->buffer_address
[0] = src_buffer
+ DOT_11_MAC_HEADER_SIZE
;
355 pDes
->buffer_total_size
-= DOT_11_MAC_HEADER_SIZE
;
356 pDes
->buffer_size
[0] = pDes
->buffer_total_size
;
358 // Set fragment threshold
359 FragmentThreshold
-= (DOT_11_MAC_HEADER_SIZE
+ 4);
360 pDes
->FragmentThreshold
= FragmentThreshold
;
363 TargetBuffer
[1] |= 0x04;// Set more frag bit
368 stmp
= *(u16
*)(TargetBuffer
+30); // 2n alignment address
371 ctmp1
= ctmpf
= CURRENT_TX_RATE_FOR_MNG
;
373 pDes
->TxRate
= ctmp1
;
375 printk("Tx rate =%x\n", ctmp1
);
378 pT01
->T01_modulation_type
= (ctmp1
%3) ? 0 : 1;
380 for( i
=0; i
<2; i
++ ) {
384 pMds
->TxRate
[pDes
->Descriptor_ID
][i
] = ctmp1
; // backup the ta rate and fall back rate
386 if( ctmp1
== 108) ctmp2
= 7;
387 else if( ctmp1
== 96 ) ctmp2
= 6; // Rate convert for USB
388 else if( ctmp1
== 72 ) ctmp2
= 5;
389 else if( ctmp1
== 48 ) ctmp2
= 4;
390 else if( ctmp1
== 36 ) ctmp2
= 3;
391 else if( ctmp1
== 24 ) ctmp2
= 2;
392 else if( ctmp1
== 18 ) ctmp2
= 1;
393 else if( ctmp1
== 12 ) ctmp2
= 0;
394 else if( ctmp1
== 22 ) ctmp2
= 3;
395 else if( ctmp1
== 11 ) ctmp2
= 2;
396 else if( ctmp1
== 4 ) ctmp2
= 1;
397 else ctmp2
= 0; // if( ctmp1 == 2 ) or default
400 pT01
->T01_transmit_rate
= ctmp2
;
402 pT01
->T01_fall_back_rate
= ctmp2
;
408 if ((pT01
->T01_modulation_type
== 0) && (pT01
->T01_transmit_rate
== 0)) // RATE_1M
409 pDes
->PreambleMode
= WLAN_PREAMBLE_TYPE_LONG
;
411 pDes
->PreambleMode
= CURRENT_PREAMBLE_MODE
;
412 pT01
->T01_plcp_header_length
= pDes
->PreambleMode
; // Set preamble
417 Mds_Tx(struct wbsoft_priv
* adapter
)
419 struct hw_data
* pHwData
= &adapter
->sHwData
;
420 struct wb35_mds
*pMds
= &adapter
->Mds
;
421 struct wb35_descriptor TxDes
;
422 struct wb35_descriptor
*pTxDes
= &TxDes
;
424 u16 XmitBufSize
, PacketSize
, stmp
, CurrentSize
, FragmentThreshold
;
425 u8 FillIndex
, TxDesIndex
, FragmentCount
, FillCount
;
426 unsigned char BufferFilled
= false;
431 if (!hal_driver_init_OK(pHwData
))
434 //Only one thread can be run here
435 if (atomic_inc_return(&pMds
->TxThreadCount
) != 1)
438 // Start to fill the data
440 FillIndex
= pMds
->TxFillIndex
;
441 if (pMds
->TxOwner
[FillIndex
]) { // Is owned by software 0:Yes 1:No
443 printk("[Mds_Tx] Tx Owner is H/W.\n");
448 XmitBufAddress
= pMds
->pTxBuffer
+ (MAX_USB_TX_BUFFER
* FillIndex
); //Get buffer
452 PacketSize
= adapter
->sMlmeFrame
.len
;
456 //For Check the buffer resource
457 FragmentThreshold
= CURRENT_FRAGMENT_THRESHOLD
;
459 FragmentCount
= PacketSize
/FragmentThreshold
+ 1;
460 stmp
= PacketSize
+ FragmentCount
*32 + 8;//931130.5.c 8:MIC
461 if ((XmitBufSize
+ stmp
) >= MAX_USB_TX_BUFFER
) {
462 printk("[Mds_Tx] Excess max tx buffer.\n");
463 break; // buffer is not enough
468 // Start transmitting
472 /* Leaves first u8 intact */
473 memset((u8
*)pTxDes
+ 1, 0, sizeof(struct wb35_descriptor
) - 1);
475 TxDesIndex
= pMds
->TxDesIndex
;//Get the current ID
476 pTxDes
->Descriptor_ID
= TxDesIndex
;
477 pMds
->TxDesFrom
[ TxDesIndex
] = 2;//Storing the information of source comming from
479 pMds
->TxDesIndex
%= MAX_USB_TX_DESCRIPTOR
;
481 MLME_GetNextPacket( adapter
, pTxDes
);
483 // Copy header. 8byte USB + 24byte 802.11Hdr. Set TxRate, Preamble type
484 Mds_HeaderCopy( adapter
, pTxDes
, XmitBufAddress
);
486 // For speed up Key setting
487 if (pTxDes
->EapFix
) {
489 printk("35: EPA 4th frame detected. Size = %d\n", PacketSize
);
491 pHwData
->IsKeyPreSet
= 1;
494 // Copy (fragment) frame body, and set USB, 802.11 hdr flag
495 CurrentSize
= Mds_BodyCopy(adapter
, pTxDes
, XmitBufAddress
);
497 // Set RTS/CTS and Normal duration field into buffer
498 Mds_DurationSet(adapter
, pTxDes
, XmitBufAddress
);
500 //Shift to the next address
501 XmitBufSize
+= CurrentSize
;
502 XmitBufAddress
+= CurrentSize
;
504 #ifdef _IBSS_BEACON_SEQ_STICK_
505 if ((XmitBufAddress
[ DOT_11_DA_OFFSET
+8 ] & 0xfc) != MAC_SUBTYPE_MNGMNT_PROBE_REQUEST
) // +8 for USB hdr
507 pMds
->TxToggle
= true;
509 // Get packet to transmit completed, 1:TESTSTA 2:MLME 3: Ndis data
510 MLME_SendComplete(adapter
, 0, true);
512 // Software TSC count 20060214
514 if (pMds
->TxTsc
== 0)
517 FillCount
++; // 20060928
518 } while (HAL_USB_MODE_BURST(pHwData
)); // End of multiple MSDU copy loop. false = single true = multiple sending
520 // Move to the next one, if necessary
523 pMds
->TxBufferSize
[ FillIndex
] = XmitBufSize
;
525 // 20060928 set Tx count
526 pMds
->TxCountInBuffer
[FillIndex
] = FillCount
;
529 pMds
->TxOwner
[FillIndex
] = 1;
532 pMds
->TxFillIndex
%= MAX_USB_TX_BUFFER_NUMBER
;
533 BufferFilled
= false;
537 if (!PacketSize
) // No more pk for transmitting
543 // Start to send by lower module
545 if (!pHwData
->IsKeyPreSet
)
546 Wb35Tx_start(adapter
);
549 atomic_dec(&pMds
->TxThreadCount
);
553 Mds_SendComplete(struct wbsoft_priv
* adapter
, PT02_DESCRIPTOR pT02
)
555 struct wb35_mds
*pMds
= &adapter
->Mds
;
556 struct hw_data
* pHwData
= &adapter
->sHwData
;
557 u8 PacketId
= (u8
)pT02
->T02_Tx_PktID
;
558 unsigned char SendOK
= true;
559 u8 RetryCount
, TxRate
;
561 if (pT02
->T02_IgnoreResult
) // Don't care the result
563 if (pT02
->T02_IsLastMpdu
) {
564 //TODO: DTO -- get the retry count and fragment count
566 TxRate
= pMds
->TxRate
[ PacketId
][ 0 ];
567 RetryCount
= (u8
)pT02
->T02_MPDU_Cnt
;
568 if (pT02
->value
& FLAG_ERROR_TX_MASK
) {
571 if (pT02
->T02_transmit_abort
|| pT02
->T02_out_of_MaxTxMSDULiftTime
) {
573 pHwData
->dto_tx_retry_count
+= (RetryCount
+1);
576 pHwData
->tx_retry_count
[RetryCount
] += RetryCount
;
578 pHwData
->tx_retry_count
[7] += RetryCount
;
579 #ifdef _PE_STATE_DUMP_
580 printk("dto_tx_retry_count =%d\n", pHwData
->dto_tx_retry_count
);
582 MTO_SetTxCount(adapter
, TxRate
, RetryCount
);
584 pHwData
->dto_tx_frag_count
+= (RetryCount
+1);
587 if (pT02
->T02_transmit_abort_due_to_TBTT
)
588 pHwData
->tx_TBTT_start_count
++;
589 if (pT02
->T02_transmit_without_encryption_due_to_wep_on_false
)
590 pHwData
->tx_WepOn_false_count
++;
591 if (pT02
->T02_discard_due_to_null_wep_key
)
592 pHwData
->tx_Null_key_count
++;
594 if (pT02
->T02_effective_transmission_rate
)
595 pHwData
->tx_ETR_count
++;
596 MTO_SetTxCount(adapter
, TxRate
, RetryCount
);
599 // Clear send result buffer
600 pMds
->TxResult
[ PacketId
] = 0;
602 pMds
->TxResult
[ PacketId
] |= ((u16
)(pT02
->value
& 0x0ffff));