4 #include "mlmetxrx_f.h"
11 Mds_initial(struct wbsoft_priv
* adapter
)
13 PMDS pMds
= &adapter
->Mds
;
15 pMds
->TxPause
= false;
16 pMds
->TxRTSThreshold
= DEFAULT_RTSThreshold
;
17 pMds
->TxFragmentThreshold
= DEFAULT_FRAGMENT_THRESHOLD
;
19 return hal_get_tx_buffer( &adapter
->sHwData
, &pMds
->pTxBuffer
);
23 Mds_Destroy(struct wbsoft_priv
* adapter
)
27 static void Mds_DurationSet(struct wbsoft_priv
*adapter
, PDESCRIPTOR pDes
, u8
*buffer
)
31 u16 Duration
, NextBodyLen
, OffsetSize
;
33 unsigned char CTS_on
= false, RTS_on
= false;
34 PT00_DESCRIPTOR pNextT00
;
36 unsigned char boGroupAddr
= false;
38 OffsetSize
= pDes
->FragmentThreshold
+ 32 + 3;
40 Rate
= pDes
->TxRate
>> 1;
44 pT00
= (PT00_DESCRIPTOR
)buffer
;
45 pT01
= (PT01_DESCRIPTOR
)(buffer
+4);
46 pNextT00
= (PT00_DESCRIPTOR
)(buffer
+OffsetSize
);
48 if( buffer
[ DOT_11_DA_OFFSET
+8 ] & 0x1 ) // +8 for USB hdr
51 //========================================
52 // Set RTS/CTS mechanism
53 //========================================
56 //NOTE : If the protection mode is enabled and the MSDU will be fragmented,
57 // the tx rates of MPDUs will all be DSSS rates. So it will not use
58 // CTS-to-self in this case. CTS-To-self will only be used when without
59 // fragmentation. -- 20050112
60 BodyLen
= (u16
)pT00
->T00_frame_length
; //include 802.11 header
63 if( BodyLen
>= CURRENT_RTS_THRESHOLD
)
64 RTS_on
= true; // Using RTS
67 if( pT01
->T01_modulation_type
) // Is using OFDM
69 if( CURRENT_PROTECT_MECHANISM
) // Is using protect
70 CTS_on
= true; // Using CTS
75 if( RTS_on
|| CTS_on
)
77 if( pT01
->T01_modulation_type
) // Is using OFDM
80 // 2 SIFS + DATA transmit time + 1 ACK
81 // ACK Rate : 24 Mega bps
82 // ACK frame length = 14 bytes
83 Duration
= 2*DEFAULT_SIFSTIME
+
84 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
+
85 ((BodyLen
*8 + 22 + Rate
*4 - 1)/(Rate
*4))*Tsym
+
86 ((112 + 22 + 95)/96)*Tsym
;
91 // 2 SIFS + DATA transmit time + 1 ACK
93 // ACK frame length = 14 bytes
94 if( pT01
->T01_plcp_header_length
) //long preamble
95 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
*2;
97 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
*2;
99 Duration
+= ( ((BodyLen
+ 14)*8 + Rate
-1) / Rate
+
100 DEFAULT_SIFSTIME
*2 );
105 if( pT01
->T01_modulation_type
) // Is using OFDM
107 //CTS + 1 SIFS + CTS duration
108 //CTS Rate : 24 Mega bps
109 //CTS frame length = 14 bytes
110 Duration
+= (DEFAULT_SIFSTIME
+
111 PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
+
112 ((112 + 22 + 95)/96)*Tsym
);
116 //CTS + 1 SIFS + CTS duration
117 //CTS Rate : ?? Mega bps
118 //CTS frame length = 14 bytes
119 if( pT01
->T01_plcp_header_length
) //long preamble
120 Duration
+= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
;
122 Duration
+= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
;
124 Duration
+= ( ((112 + Rate
-1) / Rate
) + DEFAULT_SIFSTIME
);
128 // Set the value into USB descriptor
129 pT01
->T01_add_rts
= RTS_on
? 1 : 0;
130 pT01
->T01_add_cts
= CTS_on
? 1 : 0;
131 pT01
->T01_rts_cts_duration
= Duration
;
134 //=====================================
135 // Fill the more fragment descriptor
136 //=====================================
141 for( i
=pDes
->FragmentCount
-1; i
>0; i
-- )
143 NextBodyLen
= (u16
)pNextT00
->T00_frame_length
;
144 NextBodyLen
+= 4; //CRC
146 if( pT01
->T01_modulation_type
)
149 // data transmit time + 3 SIFS + 2 ACK
151 // ACK frame length = 14 bytes, tx rate = 24M
152 Duration
= PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
* 3;
153 Duration
+= (((NextBodyLen
*8 + 22 + Rate
*4 - 1)/(Rate
*4)) * Tsym
+
154 (((2*14)*8 + 22 + 95)/96)*Tsym
+
160 // data transmit time + 2 ACK + 3 SIFS
162 // ACK frame length = 14 bytes
164 if( pT01
->T01_plcp_header_length
) //long preamble
165 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
*3;
167 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
*3;
169 Duration
+= ( ((NextBodyLen
+ (2*14))*8 + Rate
-1) / Rate
+
170 DEFAULT_SIFSTIME
*3 );
173 ((u16
*)buffer
)[5] = cpu_to_le16(Duration
);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
175 //----20061009 add by anson's endian
176 pNextT00
->value
= cpu_to_le32(pNextT00
->value
);
177 pT01
->value
= cpu_to_le32( pT01
->value
);
178 //----end 20061009 add by anson's endian
180 buffer
+= OffsetSize
;
181 pT01
= (PT01_DESCRIPTOR
)(buffer
+4);
182 if (i
!= 1) //The last fragment will not have the next fragment
183 pNextT00
= (PT00_DESCRIPTOR
)(buffer
+OffsetSize
);
186 //=====================================
187 // Fill the last fragment descriptor
188 //=====================================
189 if( pT01
->T01_modulation_type
)
193 // Rate : 24 Mega bps
194 // ACK frame length = 14 bytes
195 Duration
= PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION
;
196 //The Tx rate of ACK use 24M
197 Duration
+= (((112 + 22 + 95)/96)*Tsym
+ DEFAULT_SIFSTIME
);
203 // Rate : ?? Mega bps
204 // ACK frame length = 14 bytes(112 bits)
205 if( pT01
->T01_plcp_header_length
) //long preamble
206 Duration
= LONG_PREAMBLE_PLUS_PLCPHEADER_TIME
;
208 Duration
= SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME
;
210 Duration
+= ( (112 + Rate
-1)/Rate
+ DEFAULT_SIFSTIME
);
214 ((u16
*)buffer
)[5] = cpu_to_le16(Duration
);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
215 pT00
->value
= cpu_to_le32(pT00
->value
);
216 pT01
->value
= cpu_to_le32(pT01
->value
);
221 // The function return the 4n size of usb pk
222 static u16
Mds_BodyCopy(struct wbsoft_priv
*adapter
, PDESCRIPTOR pDes
, u8
*TargetBuffer
)
224 PT00_DESCRIPTOR pT00
;
225 PMDS pMds
= &adapter
->Mds
;
230 u16 SizeLeft
, CopySize
, CopyLeft
, stmp
;
231 u8 buf_index
, FragmentCount
= 0;
234 // Copy fragment body
235 buffer
= TargetBuffer
; // shift 8B usb + 24B 802.11
236 SizeLeft
= pDes
->buffer_total_size
;
237 buf_index
= pDes
->buffer_start_index
;
239 pT00
= (PT00_DESCRIPTOR
)buffer
;
241 pT00
= (PT00_DESCRIPTOR
)buffer
;
243 if (SizeLeft
> pDes
->FragmentThreshold
) {
244 CopySize
= pDes
->FragmentThreshold
;
245 pT00
->T00_frame_length
= 24 + CopySize
;//Set USB length
247 pT00
->T00_frame_length
= 24 + SizeLeft
;//Set USB length
249 SizeLeft
-= CopySize
;
252 pctmp
= (u8
*)( buffer
+ 8 + DOT_11_SEQUENCE_OFFSET
);
254 *pctmp
|= FragmentCount
;//931130.5.m
256 pT00
->T00_first_mpdu
= 1;
258 buffer
+= 32; // 8B usb + 24B 802.11 header
263 stmp
&= ~0x03;//4n Alignment
264 Size
+= stmp
;// Current 4n offset of mpdu
268 src_buffer
= pDes
->buffer_address
[buf_index
];
270 if (CopySize
>= pDes
->buffer_size
[buf_index
]) {
271 CopyLeft
= pDes
->buffer_size
[buf_index
];
273 // Get the next buffer of descriptor
275 buf_index
%= MAX_DESCRIPTOR_BUFFER_INDEX
;
277 u8
*pctmp
= pDes
->buffer_address
[buf_index
];
279 pDes
->buffer_address
[buf_index
] = pctmp
;
280 pDes
->buffer_size
[buf_index
] -= CopySize
;
283 memcpy(buffer
, src_buffer
, CopyLeft
);
285 CopySize
-= CopyLeft
;
291 pMds
->MicWriteAddress
[ pMds
->MicWriteIndex
] = buffer
- pMds
->MicAdd
;
292 pMds
->MicWriteSize
[ pMds
->MicWriteIndex
] = pMds
->MicAdd
;
295 else if( SizeLeft
< 8 ) //931130.5.p
297 pMds
->MicAdd
= SizeLeft
;
298 pMds
->MicWriteAddress
[ pMds
->MicWriteIndex
] = buffer
- ( 8 - SizeLeft
);
299 pMds
->MicWriteSize
[ pMds
->MicWriteIndex
] = 8 - SizeLeft
;
300 pMds
->MicWriteIndex
++;
304 // Does it need to generate the new header for next mpdu?
306 buffer
= TargetBuffer
+ Size
; // Get the next 4n start address
307 memcpy( buffer
, TargetBuffer
, 32 );//Copy 8B USB +24B 802.11
308 pT00
= (PT00_DESCRIPTOR
)buffer
;
309 pT00
->T00_first_mpdu
= 0;
315 pT00
->T00_last_mpdu
= 1;
316 pT00
->T00_IsLastMpdu
= 1;
317 buffer
= (u8
*)pT00
+ 8; // +8 for USB hdr
318 buffer
[1] &= ~0x04; // Clear more frag bit of 802.11 frame control
319 pDes
->FragmentCount
= FragmentCount
; // Update the correct fragment number
323 static void Mds_HeaderCopy(struct wbsoft_priv
* adapter
, PDESCRIPTOR pDes
, u8
*TargetBuffer
)
325 PMDS pMds
= &adapter
->Mds
;
326 u8
*src_buffer
= pDes
->buffer_address
[0];//931130.5.g
327 PT00_DESCRIPTOR pT00
;
328 PT01_DESCRIPTOR pT01
;
330 u8 i
, ctmp1
, ctmp2
, ctmpf
;
331 u16 FragmentThreshold
= CURRENT_FRAGMENT_THRESHOLD
;
334 stmp
= pDes
->buffer_total_size
;
336 // Set USB header 8 byte
338 pT00
= (PT00_DESCRIPTOR
)TargetBuffer
;
340 pT01
= (PT01_DESCRIPTOR
)TargetBuffer
;
343 pT00
->value
= 0;// Clear
344 pT01
->value
= 0;// Clear
346 pT00
->T00_tx_packet_id
= pDes
->Descriptor_ID
;// Set packet ID
347 pT00
->T00_header_length
= 24;// Set header length
348 pT01
->T01_retry_abort_ebable
= 1;//921013 931130.5.h
351 pT01
->T01_wep_id
= 0;
353 FragmentThreshold
= DEFAULT_FRAGMENT_THRESHOLD
; //Do not fragment
354 // Copy full data, the 1'st buffer contain all the data 931130.5.j
355 memcpy( TargetBuffer
, src_buffer
, DOT_11_MAC_HEADER_SIZE
);// Copy header
356 pDes
->buffer_address
[0] = src_buffer
+ DOT_11_MAC_HEADER_SIZE
;
357 pDes
->buffer_total_size
-= DOT_11_MAC_HEADER_SIZE
;
358 pDes
->buffer_size
[0] = pDes
->buffer_total_size
;
360 // Set fragment threshold
361 FragmentThreshold
-= (DOT_11_MAC_HEADER_SIZE
+ 4);
362 pDes
->FragmentThreshold
= FragmentThreshold
;
365 TargetBuffer
[1] |= 0x04;// Set more frag bit
370 stmp
= *(u16
*)(TargetBuffer
+30); // 2n alignment address
373 ctmp1
= ctmpf
= CURRENT_TX_RATE_FOR_MNG
;
375 pDes
->TxRate
= ctmp1
;
377 WBDEBUG(("Tx rate =%x\n", ctmp1
));
380 pT01
->T01_modulation_type
= (ctmp1
%3) ? 0 : 1;
382 for( i
=0; i
<2; i
++ ) {
386 pMds
->TxRate
[pDes
->Descriptor_ID
][i
] = ctmp1
; // backup the ta rate and fall back rate
388 if( ctmp1
== 108) ctmp2
= 7;
389 else if( ctmp1
== 96 ) ctmp2
= 6; // Rate convert for USB
390 else if( ctmp1
== 72 ) ctmp2
= 5;
391 else if( ctmp1
== 48 ) ctmp2
= 4;
392 else if( ctmp1
== 36 ) ctmp2
= 3;
393 else if( ctmp1
== 24 ) ctmp2
= 2;
394 else if( ctmp1
== 18 ) ctmp2
= 1;
395 else if( ctmp1
== 12 ) ctmp2
= 0;
396 else if( ctmp1
== 22 ) ctmp2
= 3;
397 else if( ctmp1
== 11 ) ctmp2
= 2;
398 else if( ctmp1
== 4 ) ctmp2
= 1;
399 else ctmp2
= 0; // if( ctmp1 == 2 ) or default
402 pT01
->T01_transmit_rate
= ctmp2
;
404 pT01
->T01_fall_back_rate
= ctmp2
;
410 if ((pT01
->T01_modulation_type
== 0) && (pT01
->T01_transmit_rate
== 0)) // RATE_1M
411 pDes
->PreambleMode
= WLAN_PREAMBLE_TYPE_LONG
;
413 pDes
->PreambleMode
= CURRENT_PREAMBLE_MODE
;
414 pT01
->T01_plcp_header_length
= pDes
->PreambleMode
; // Set preamble
419 Mds_Tx(struct wbsoft_priv
* adapter
)
421 phw_data_t pHwData
= &adapter
->sHwData
;
422 PMDS pMds
= &adapter
->Mds
;
424 PDESCRIPTOR pTxDes
= &TxDes
;
426 u16 XmitBufSize
, PacketSize
, stmp
, CurrentSize
, FragmentThreshold
;
427 u8 FillIndex
, TxDesIndex
, FragmentCount
, FillCount
;
428 unsigned char BufferFilled
= false, MICAdd
= 0;
433 if (!hal_driver_init_OK(pHwData
))
436 //Only one thread can be run here
437 if (!atomic_inc_return(&pMds
->TxThreadCount
) == 1)
440 // Start to fill the data
442 FillIndex
= pMds
->TxFillIndex
;
443 if (pMds
->TxOwner
[FillIndex
]) { // Is owned by software 0:Yes 1:No
445 WBDEBUG(("[Mds_Tx] Tx Owner is H/W.\n"));
450 XmitBufAddress
= pMds
->pTxBuffer
+ (MAX_USB_TX_BUFFER
* FillIndex
); //Get buffer
454 PacketSize
= adapter
->sMlmeFrame
.len
;
458 //For Check the buffer resource
459 FragmentThreshold
= CURRENT_FRAGMENT_THRESHOLD
;
461 FragmentCount
= PacketSize
/FragmentThreshold
+ 1;
462 stmp
= PacketSize
+ FragmentCount
*32 + 8;//931130.5.c 8:MIC
463 if ((XmitBufSize
+ stmp
) >= MAX_USB_TX_BUFFER
) {
464 printk("[Mds_Tx] Excess max tx buffer.\n");
465 break; // buffer is not enough
470 // Start transmitting
474 /* Leaves first u8 intact */
475 memset((u8
*)pTxDes
+ 1, 0, sizeof(DESCRIPTOR
) - 1);
477 TxDesIndex
= pMds
->TxDesIndex
;//Get the current ID
478 pTxDes
->Descriptor_ID
= TxDesIndex
;
479 pMds
->TxDesFrom
[ TxDesIndex
] = 2;//Storing the information of source comming from
481 pMds
->TxDesIndex
%= MAX_USB_TX_DESCRIPTOR
;
483 MLME_GetNextPacket( adapter
, pTxDes
);
485 // Copy header. 8byte USB + 24byte 802.11Hdr. Set TxRate, Preamble type
486 Mds_HeaderCopy( adapter
, pTxDes
, XmitBufAddress
);
488 // For speed up Key setting
489 if (pTxDes
->EapFix
) {
491 WBDEBUG(("35: EPA 4th frame detected. Size = %d\n", PacketSize
));
493 pHwData
->IsKeyPreSet
= 1;
496 // Copy (fragment) frame body, and set USB, 802.11 hdr flag
497 CurrentSize
= Mds_BodyCopy(adapter
, pTxDes
, XmitBufAddress
);
499 // Set RTS/CTS and Normal duration field into buffer
500 Mds_DurationSet(adapter
, pTxDes
, XmitBufAddress
);
503 // Calculation MIC from buffer which maybe fragment, then fill into temporary address 8 byte
506 Mds_MicFill( adapter
, pTxDes
, XmitBufAddress
);
508 //Shift to the next address
509 XmitBufSize
+= CurrentSize
;
510 XmitBufAddress
+= CurrentSize
;
512 #ifdef _IBSS_BEACON_SEQ_STICK_
513 if ((XmitBufAddress
[ DOT_11_DA_OFFSET
+8 ] & 0xfc) != MAC_SUBTYPE_MNGMNT_PROBE_REQUEST
) // +8 for USB hdr
515 pMds
->TxToggle
= true;
517 // Get packet to transmit completed, 1:TESTSTA 2:MLME 3: Ndis data
518 MLME_SendComplete(adapter
, 0, true);
520 // Software TSC count 20060214
522 if (pMds
->TxTsc
== 0)
525 FillCount
++; // 20060928
526 } while (HAL_USB_MODE_BURST(pHwData
)); // End of multiple MSDU copy loop. false = single true = multiple sending
528 // Move to the next one, if necessary
531 pMds
->TxBufferSize
[ FillIndex
] = XmitBufSize
;
533 // 20060928 set Tx count
534 pMds
->TxCountInBuffer
[FillIndex
] = FillCount
;
537 pMds
->TxOwner
[FillIndex
] = 1;
540 pMds
->TxFillIndex
%= MAX_USB_TX_BUFFER_NUMBER
;
541 BufferFilled
= false;
545 if (!PacketSize
) // No more pk for transmitting
551 // Start to send by lower module
553 if (!pHwData
->IsKeyPreSet
)
554 Wb35Tx_start(adapter
);
557 atomic_dec(&pMds
->TxThreadCount
);
561 Mds_SendComplete(struct wbsoft_priv
* adapter
, PT02_DESCRIPTOR pT02
)
563 PMDS pMds
= &adapter
->Mds
;
564 phw_data_t pHwData
= &adapter
->sHwData
;
565 u8 PacketId
= (u8
)pT02
->T02_Tx_PktID
;
566 unsigned char SendOK
= true;
567 u8 RetryCount
, TxRate
;
569 if (pT02
->T02_IgnoreResult
) // Don't care the result
571 if (pT02
->T02_IsLastMpdu
) {
572 //TODO: DTO -- get the retry count and fragment count
574 TxRate
= pMds
->TxRate
[ PacketId
][ 0 ];
575 RetryCount
= (u8
)pT02
->T02_MPDU_Cnt
;
576 if (pT02
->value
& FLAG_ERROR_TX_MASK
) {
579 if (pT02
->T02_transmit_abort
|| pT02
->T02_out_of_MaxTxMSDULiftTime
) {
581 pHwData
->dto_tx_retry_count
+= (RetryCount
+1);
584 pHwData
->tx_retry_count
[RetryCount
] += RetryCount
;
586 pHwData
->tx_retry_count
[7] += RetryCount
;
587 #ifdef _PE_STATE_DUMP_
588 WBDEBUG(("dto_tx_retry_count =%d\n", pHwData
->dto_tx_retry_count
));
590 MTO_SetTxCount(adapter
, TxRate
, RetryCount
);
592 pHwData
->dto_tx_frag_count
+= (RetryCount
+1);
595 if (pT02
->T02_transmit_abort_due_to_TBTT
)
596 pHwData
->tx_TBTT_start_count
++;
597 if (pT02
->T02_transmit_without_encryption_due_to_wep_on_false
)
598 pHwData
->tx_WepOn_false_count
++;
599 if (pT02
->T02_discard_due_to_null_wep_key
)
600 pHwData
->tx_Null_key_count
++;
602 if (pT02
->T02_effective_transmission_rate
)
603 pHwData
->tx_ETR_count
++;
604 MTO_SetTxCount(adapter
, TxRate
, RetryCount
);
607 // Clear send result buffer
608 pMds
->TxResult
[ PacketId
] = 0;
610 pMds
->TxResult
[ PacketId
] |= ((u16
)(pT02
->value
& 0x0ffff));