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authorPekka Enberg <penberg@cs.helsinki.fi>2008-10-30 19:04:50 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-06 13:51:51 -0800
commit6261ab3a63e17009424a620ed2b6e30966ac72f4 (patch)
tree6a0b4f4f9854de4bbffe91d457e624478a30ad73 /drivers/staging/winbond/mds.c
parent54369cc69c4625e48838b15151a39e643d9b6ad8 (diff)
Staging: w35und: make functions local to mds.c static
The functions have no external references so make them static after shuffling the code around a bit to avoid forward declarations. Acked-by: Pavel Machek <pavel@suse.cz> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Diffstat (limited to 'drivers/staging/winbond/mds.c')
-rw-r--r--drivers/staging/winbond/mds.c799
1 files changed, 391 insertions, 408 deletions
diff --git a/drivers/staging/winbond/mds.c b/drivers/staging/winbond/mds.c
index df59b04da74..1bfdbc4827f 100644
--- a/drivers/staging/winbond/mds.c
+++ b/drivers/staging/winbond/mds.c
@@ -7,19 +7,6 @@
#include "wbhal_f.h"
#include "wblinux_f.h"
-void
-Mds_reset_descriptor(struct wbsoft_priv * adapter)
-{
- PMDS pMds = &adapter->Mds;
-
- pMds->TxPause = 0;
- atomic_set(&pMds->TxThreadCount, 0);
- pMds->TxFillIndex = 0;
- pMds->TxDesIndex = 0;
- pMds->ScanTxPause = 0;
- memset(pMds->TxOwner, 0, ((MAX_USB_TX_BUFFER_NUMBER + 3) & ~0x03));
-}
-
unsigned char
Mds_initial(struct wbsoft_priv * adapter)
{
@@ -40,6 +27,397 @@ Mds_Destroy(struct wbsoft_priv * adapter)
vRxTimerStop(adapter);
}
+static void Mds_DurationSet(struct wbsoft_priv *adapter, PDESCRIPTOR pDes, u8 *buffer)
+{
+ PT00_DESCRIPTOR pT00;
+ PT01_DESCRIPTOR pT01;
+ u16 Duration, NextBodyLen, OffsetSize;
+ u8 Rate, i;
+ unsigned char CTS_on = false, RTS_on = false;
+ PT00_DESCRIPTOR pNextT00;
+ u16 BodyLen = 0;
+ unsigned char boGroupAddr = false;
+
+ OffsetSize = pDes->FragmentThreshold + 32 + 3;
+ OffsetSize &= ~0x03;
+ Rate = pDes->TxRate >> 1;
+ if (!Rate)
+ Rate = 1;
+
+ pT00 = (PT00_DESCRIPTOR)buffer;
+ pT01 = (PT01_DESCRIPTOR)(buffer+4);
+ pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
+
+ if( buffer[ DOT_11_DA_OFFSET+8 ] & 0x1 ) // +8 for USB hdr
+ boGroupAddr = true;
+
+ //========================================
+ // Set RTS/CTS mechanism
+ //========================================
+ if (!boGroupAddr)
+ {
+ //NOTE : If the protection mode is enabled and the MSDU will be fragmented,
+ // the tx rates of MPDUs will all be DSSS rates. So it will not use
+ // CTS-to-self in this case. CTS-To-self will only be used when without
+ // fragmentation. -- 20050112
+ BodyLen = (u16)pT00->T00_frame_length; //include 802.11 header
+ BodyLen += 4; //CRC
+
+ if( BodyLen >= CURRENT_RTS_THRESHOLD )
+ RTS_on = true; // Using RTS
+ else
+ {
+ if( pT01->T01_modulation_type ) // Is using OFDM
+ {
+ if( CURRENT_PROTECT_MECHANISM ) // Is using protect
+ CTS_on = true; // Using CTS
+ }
+ }
+ }
+
+ if( RTS_on || CTS_on )
+ {
+ if( pT01->T01_modulation_type) // Is using OFDM
+ {
+ //CTS duration
+ // 2 SIFS + DATA transmit time + 1 ACK
+ // ACK Rate : 24 Mega bps
+ // ACK frame length = 14 bytes
+ Duration = 2*DEFAULT_SIFSTIME +
+ 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
+ ((BodyLen*8 + 22 + Rate*4 - 1)/(Rate*4))*Tsym +
+ ((112 + 22 + 95)/96)*Tsym;
+ }
+ else //DSSS
+ {
+ //CTS duration
+ // 2 SIFS + DATA transmit time + 1 ACK
+ // Rate : ?? Mega bps
+ // ACK frame length = 14 bytes
+ if( pT01->T01_plcp_header_length ) //long preamble
+ Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
+ else
+ Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
+
+ Duration += ( ((BodyLen + 14)*8 + Rate-1) / Rate +
+ DEFAULT_SIFSTIME*2 );
+ }
+
+ if( RTS_on )
+ {
+ if( pT01->T01_modulation_type ) // Is using OFDM
+ {
+ //CTS + 1 SIFS + CTS duration
+ //CTS Rate : 24 Mega bps
+ //CTS frame length = 14 bytes
+ Duration += (DEFAULT_SIFSTIME +
+ PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
+ ((112 + 22 + 95)/96)*Tsym);
+ }
+ else
+ {
+ //CTS + 1 SIFS + CTS duration
+ //CTS Rate : ?? Mega bps
+ //CTS frame length = 14 bytes
+ if( pT01->T01_plcp_header_length ) //long preamble
+ Duration += LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
+ else
+ Duration += SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
+
+ Duration += ( ((112 + Rate-1) / Rate) + DEFAULT_SIFSTIME );
+ }
+ }
+
+ // Set the value into USB descriptor
+ pT01->T01_add_rts = RTS_on ? 1 : 0;
+ pT01->T01_add_cts = CTS_on ? 1 : 0;
+ pT01->T01_rts_cts_duration = Duration;
+ }
+
+ //=====================================
+ // Fill the more fragment descriptor
+ //=====================================
+ if( boGroupAddr )
+ Duration = 0;
+ else
+ {
+ for( i=pDes->FragmentCount-1; i>0; i-- )
+ {
+ NextBodyLen = (u16)pNextT00->T00_frame_length;
+ NextBodyLen += 4; //CRC
+
+ if( pT01->T01_modulation_type )
+ {
+ //OFDM
+ // data transmit time + 3 SIFS + 2 ACK
+ // Rate : ??Mega bps
+ // ACK frame length = 14 bytes, tx rate = 24M
+ Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION * 3;
+ Duration += (((NextBodyLen*8 + 22 + Rate*4 - 1)/(Rate*4)) * Tsym +
+ (((2*14)*8 + 22 + 95)/96)*Tsym +
+ DEFAULT_SIFSTIME*3);
+ }
+ else
+ {
+ //DSSS
+ // data transmit time + 2 ACK + 3 SIFS
+ // Rate : ??Mega bps
+ // ACK frame length = 14 bytes
+ //TODO :
+ if( pT01->T01_plcp_header_length ) //long preamble
+ Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
+ else
+ Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
+
+ Duration += ( ((NextBodyLen + (2*14))*8 + Rate-1) / Rate +
+ DEFAULT_SIFSTIME*3 );
+ }
+
+ ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
+
+ //----20061009 add by anson's endian
+ pNextT00->value = cpu_to_le32(pNextT00->value);
+ pT01->value = cpu_to_le32( pT01->value );
+ //----end 20061009 add by anson's endian
+
+ buffer += OffsetSize;
+ pT01 = (PT01_DESCRIPTOR)(buffer+4);
+ if (i != 1) //The last fragment will not have the next fragment
+ pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
+ }
+
+ //=====================================
+ // Fill the last fragment descriptor
+ //=====================================
+ if( pT01->T01_modulation_type )
+ {
+ //OFDM
+ // 1 SIFS + 1 ACK
+ // Rate : 24 Mega bps
+ // ACK frame length = 14 bytes
+ Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION;
+ //The Tx rate of ACK use 24M
+ Duration += (((112 + 22 + 95)/96)*Tsym + DEFAULT_SIFSTIME );
+ }
+ else
+ {
+ // DSSS
+ // 1 ACK + 1 SIFS
+ // Rate : ?? Mega bps
+ // ACK frame length = 14 bytes(112 bits)
+ if( pT01->T01_plcp_header_length ) //long preamble
+ Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
+ else
+ Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
+
+ Duration += ( (112 + Rate-1)/Rate + DEFAULT_SIFSTIME );
+ }
+ }
+
+ ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
+ pT00->value = cpu_to_le32(pT00->value);
+ pT01->value = cpu_to_le32(pT01->value);
+ //--end 20061009 add
+
+}
+
+// The function return the 4n size of usb pk
+static u16 Mds_BodyCopy(struct wbsoft_priv *adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
+{
+ PT00_DESCRIPTOR pT00;
+ PMDS pMds = &adapter->Mds;
+ u8 *buffer;
+ u8 *src_buffer;
+ u8 *pctmp;
+ u16 Size = 0;
+ u16 SizeLeft, CopySize, CopyLeft, stmp;
+ u8 buf_index, FragmentCount = 0;
+
+
+ // Copy fragment body
+ buffer = TargetBuffer; // shift 8B usb + 24B 802.11
+ SizeLeft = pDes->buffer_total_size;
+ buf_index = pDes->buffer_start_index;
+
+ pT00 = (PT00_DESCRIPTOR)buffer;
+ while (SizeLeft) {
+ pT00 = (PT00_DESCRIPTOR)buffer;
+ CopySize = SizeLeft;
+ if (SizeLeft > pDes->FragmentThreshold) {
+ CopySize = pDes->FragmentThreshold;
+ pT00->T00_frame_length = 24 + CopySize;//Set USB length
+ } else
+ pT00->T00_frame_length = 24 + SizeLeft;//Set USB length
+
+ SizeLeft -= CopySize;
+
+ // 1 Byte operation
+ pctmp = (u8 *)( buffer + 8 + DOT_11_SEQUENCE_OFFSET );
+ *pctmp &= 0xf0;
+ *pctmp |= FragmentCount;//931130.5.m
+ if( !FragmentCount )
+ pT00->T00_first_mpdu = 1;
+
+ buffer += 32; // 8B usb + 24B 802.11 header
+ Size += 32;
+
+ // Copy into buffer
+ stmp = CopySize + 3;
+ stmp &= ~0x03;//4n Alignment
+ Size += stmp;// Current 4n offset of mpdu
+
+ while (CopySize) {
+ // Copy body
+ src_buffer = pDes->buffer_address[buf_index];
+ CopyLeft = CopySize;
+ if (CopySize >= pDes->buffer_size[buf_index]) {
+ CopyLeft = pDes->buffer_size[buf_index];
+
+ // Get the next buffer of descriptor
+ buf_index++;
+ buf_index %= MAX_DESCRIPTOR_BUFFER_INDEX;
+ } else {
+ u8 *pctmp = pDes->buffer_address[buf_index];
+ pctmp += CopySize;
+ pDes->buffer_address[buf_index] = pctmp;
+ pDes->buffer_size[buf_index] -= CopySize;
+ }
+
+ memcpy(buffer, src_buffer, CopyLeft);
+ buffer += CopyLeft;
+ CopySize -= CopyLeft;
+ }
+
+ // 931130.5.n
+ if (pMds->MicAdd) {
+ if (!SizeLeft) {
+ pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - pMds->MicAdd;
+ pMds->MicWriteSize[ pMds->MicWriteIndex ] = pMds->MicAdd;
+ pMds->MicAdd = 0;
+ }
+ else if( SizeLeft < 8 ) //931130.5.p
+ {
+ pMds->MicAdd = SizeLeft;
+ pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - ( 8 - SizeLeft );
+ pMds->MicWriteSize[ pMds->MicWriteIndex ] = 8 - SizeLeft;
+ pMds->MicWriteIndex++;
+ }
+ }
+
+ // Does it need to generate the new header for next mpdu?
+ if (SizeLeft) {
+ buffer = TargetBuffer + Size; // Get the next 4n start address
+ memcpy( buffer, TargetBuffer, 32 );//Copy 8B USB +24B 802.11
+ pT00 = (PT00_DESCRIPTOR)buffer;
+ pT00->T00_first_mpdu = 0;
+ }
+
+ FragmentCount++;
+ }
+
+ pT00->T00_last_mpdu = 1;
+ pT00->T00_IsLastMpdu = 1;
+ buffer = (u8 *)pT00 + 8; // +8 for USB hdr
+ buffer[1] &= ~0x04; // Clear more frag bit of 802.11 frame control
+ pDes->FragmentCount = FragmentCount; // Update the correct fragment number
+ return Size;
+}
+
+static void Mds_HeaderCopy(struct wbsoft_priv * adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
+{
+ PMDS pMds = &adapter->Mds;
+ u8 *src_buffer = pDes->buffer_address[0];//931130.5.g
+ PT00_DESCRIPTOR pT00;
+ PT01_DESCRIPTOR pT01;
+ u16 stmp;
+ u8 i, ctmp1, ctmp2, ctmpf;
+ u16 FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD;
+
+
+ stmp = pDes->buffer_total_size;
+ //
+ // Set USB header 8 byte
+ //
+ pT00 = (PT00_DESCRIPTOR)TargetBuffer;
+ TargetBuffer += 4;
+ pT01 = (PT01_DESCRIPTOR)TargetBuffer;
+ TargetBuffer += 4;
+
+ pT00->value = 0;// Clear
+ pT01->value = 0;// Clear
+
+ pT00->T00_tx_packet_id = pDes->Descriptor_ID;// Set packet ID
+ pT00->T00_header_length = 24;// Set header length
+ pT01->T01_retry_abort_ebable = 1;//921013 931130.5.h
+
+ // Key ID setup
+ pT01->T01_wep_id = 0;
+
+ FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; //Do not fragment
+ // Copy full data, the 1'st buffer contain all the data 931130.5.j
+ memcpy( TargetBuffer, src_buffer, DOT_11_MAC_HEADER_SIZE );// Copy header
+ pDes->buffer_address[0] = src_buffer + DOT_11_MAC_HEADER_SIZE;
+ pDes->buffer_total_size -= DOT_11_MAC_HEADER_SIZE;
+ pDes->buffer_size[0] = pDes->buffer_total_size;
+
+ // Set fragment threshold
+ FragmentThreshold -= (DOT_11_MAC_HEADER_SIZE + 4);
+ pDes->FragmentThreshold = FragmentThreshold;
+
+ // Set more frag bit
+ TargetBuffer[1] |= 0x04;// Set more frag bit
+
+ //
+ // Set tx rate
+ //
+ stmp = *(u16 *)(TargetBuffer+30); // 2n alignment address
+
+ //Use basic rate
+ ctmp1 = ctmpf = CURRENT_TX_RATE_FOR_MNG;
+
+ pDes->TxRate = ctmp1;
+ #ifdef _PE_TX_DUMP_
+ WBDEBUG(("Tx rate =%x\n", ctmp1));
+ #endif
+
+ pT01->T01_modulation_type = (ctmp1%3) ? 0 : 1;
+
+ for( i=0; i<2; i++ ) {
+ if( i == 1 )
+ ctmp1 = ctmpf;
+
+ pMds->TxRate[pDes->Descriptor_ID][i] = ctmp1; // backup the ta rate and fall back rate
+
+ if( ctmp1 == 108) ctmp2 = 7;
+ else if( ctmp1 == 96 ) ctmp2 = 6; // Rate convert for USB
+ else if( ctmp1 == 72 ) ctmp2 = 5;
+ else if( ctmp1 == 48 ) ctmp2 = 4;
+ else if( ctmp1 == 36 ) ctmp2 = 3;
+ else if( ctmp1 == 24 ) ctmp2 = 2;
+ else if( ctmp1 == 18 ) ctmp2 = 1;
+ else if( ctmp1 == 12 ) ctmp2 = 0;
+ else if( ctmp1 == 22 ) ctmp2 = 3;
+ else if( ctmp1 == 11 ) ctmp2 = 2;
+ else if( ctmp1 == 4 ) ctmp2 = 1;
+ else ctmp2 = 0; // if( ctmp1 == 2 ) or default
+
+ if( i == 0 )
+ pT01->T01_transmit_rate = ctmp2;
+ else
+ pT01->T01_fall_back_rate = ctmp2;
+ }
+
+ //
+ // Set preamble type
+ //
+ if ((pT01->T01_modulation_type == 0) && (pT01->T01_transmit_rate == 0)) // RATE_1M
+ pDes->PreambleMode = WLAN_PREAMBLE_TYPE_LONG;
+ else
+ pDes->PreambleMode = CURRENT_PREAMBLE_MODE;
+ pT01->T01_plcp_header_length = pDes->PreambleMode; // Set preamble
+
+}
+
void
Mds_Tx(struct wbsoft_priv * adapter)
{
@@ -234,398 +612,3 @@ Mds_SendComplete(struct wbsoft_priv * adapter, PT02_DESCRIPTOR pT02)
} else
pMds->TxResult[ PacketId ] |= ((u16)(pT02->value & 0x0ffff));
}
-
-void
-Mds_HeaderCopy(struct wbsoft_priv * adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
-{
- PMDS pMds = &adapter->Mds;
- u8 *src_buffer = pDes->buffer_address[0];//931130.5.g
- PT00_DESCRIPTOR pT00;
- PT01_DESCRIPTOR pT01;
- u16 stmp;
- u8 i, ctmp1, ctmp2, ctmpf;
- u16 FragmentThreshold = CURRENT_FRAGMENT_THRESHOLD;
-
-
- stmp = pDes->buffer_total_size;
- //
- // Set USB header 8 byte
- //
- pT00 = (PT00_DESCRIPTOR)TargetBuffer;
- TargetBuffer += 4;
- pT01 = (PT01_DESCRIPTOR)TargetBuffer;
- TargetBuffer += 4;
-
- pT00->value = 0;// Clear
- pT01->value = 0;// Clear
-
- pT00->T00_tx_packet_id = pDes->Descriptor_ID;// Set packet ID
- pT00->T00_header_length = 24;// Set header length
- pT01->T01_retry_abort_ebable = 1;//921013 931130.5.h
-
- // Key ID setup
- pT01->T01_wep_id = 0;
-
- FragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD; //Do not fragment
- // Copy full data, the 1'st buffer contain all the data 931130.5.j
- memcpy( TargetBuffer, src_buffer, DOT_11_MAC_HEADER_SIZE );// Copy header
- pDes->buffer_address[0] = src_buffer + DOT_11_MAC_HEADER_SIZE;
- pDes->buffer_total_size -= DOT_11_MAC_HEADER_SIZE;
- pDes->buffer_size[0] = pDes->buffer_total_size;
-
- // Set fragment threshold
- FragmentThreshold -= (DOT_11_MAC_HEADER_SIZE + 4);
- pDes->FragmentThreshold = FragmentThreshold;
-
- // Set more frag bit
- TargetBuffer[1] |= 0x04;// Set more frag bit
-
- //
- // Set tx rate
- //
- stmp = *(u16 *)(TargetBuffer+30); // 2n alignment address
-
- //Use basic rate
- ctmp1 = ctmpf = CURRENT_TX_RATE_FOR_MNG;
-
- pDes->TxRate = ctmp1;
- #ifdef _PE_TX_DUMP_
- WBDEBUG(("Tx rate =%x\n", ctmp1));
- #endif
-
- pT01->T01_modulation_type = (ctmp1%3) ? 0 : 1;
-
- for( i=0; i<2; i++ ) {
- if( i == 1 )
- ctmp1 = ctmpf;
-
- pMds->TxRate[pDes->Descriptor_ID][i] = ctmp1; // backup the ta rate and fall back rate
-
- if( ctmp1 == 108) ctmp2 = 7;
- else if( ctmp1 == 96 ) ctmp2 = 6; // Rate convert for USB
- else if( ctmp1 == 72 ) ctmp2 = 5;
- else if( ctmp1 == 48 ) ctmp2 = 4;
- else if( ctmp1 == 36 ) ctmp2 = 3;
- else if( ctmp1 == 24 ) ctmp2 = 2;
- else if( ctmp1 == 18 ) ctmp2 = 1;
- else if( ctmp1 == 12 ) ctmp2 = 0;
- else if( ctmp1 == 22 ) ctmp2 = 3;
- else if( ctmp1 == 11 ) ctmp2 = 2;
- else if( ctmp1 == 4 ) ctmp2 = 1;
- else ctmp2 = 0; // if( ctmp1 == 2 ) or default
-
- if( i == 0 )
- pT01->T01_transmit_rate = ctmp2;
- else
- pT01->T01_fall_back_rate = ctmp2;
- }
-
- //
- // Set preamble type
- //
- if ((pT01->T01_modulation_type == 0) && (pT01->T01_transmit_rate == 0)) // RATE_1M
- pDes->PreambleMode = WLAN_PREAMBLE_TYPE_LONG;
- else
- pDes->PreambleMode = CURRENT_PREAMBLE_MODE;
- pT01->T01_plcp_header_length = pDes->PreambleMode; // Set preamble
-
-}
-
-// The function return the 4n size of usb pk
-u16
-Mds_BodyCopy(struct wbsoft_priv * adapter, PDESCRIPTOR pDes, u8 *TargetBuffer)
-{
- PT00_DESCRIPTOR pT00;
- PMDS pMds = &adapter->Mds;
- u8 *buffer;
- u8 *src_buffer;
- u8 *pctmp;
- u16 Size = 0;
- u16 SizeLeft, CopySize, CopyLeft, stmp;
- u8 buf_index, FragmentCount = 0;
-
-
- // Copy fragment body
- buffer = TargetBuffer; // shift 8B usb + 24B 802.11
- SizeLeft = pDes->buffer_total_size;
- buf_index = pDes->buffer_start_index;
-
- pT00 = (PT00_DESCRIPTOR)buffer;
- while (SizeLeft) {
- pT00 = (PT00_DESCRIPTOR)buffer;
- CopySize = SizeLeft;
- if (SizeLeft > pDes->FragmentThreshold) {
- CopySize = pDes->FragmentThreshold;
- pT00->T00_frame_length = 24 + CopySize;//Set USB length
- } else
- pT00->T00_frame_length = 24 + SizeLeft;//Set USB length
-
- SizeLeft -= CopySize;
-
- // 1 Byte operation
- pctmp = (u8 *)( buffer + 8 + DOT_11_SEQUENCE_OFFSET );
- *pctmp &= 0xf0;
- *pctmp |= FragmentCount;//931130.5.m
- if( !FragmentCount )
- pT00->T00_first_mpdu = 1;
-
- buffer += 32; // 8B usb + 24B 802.11 header
- Size += 32;
-
- // Copy into buffer
- stmp = CopySize + 3;
- stmp &= ~0x03;//4n Alignment
- Size += stmp;// Current 4n offset of mpdu
-
- while (CopySize) {
- // Copy body
- src_buffer = pDes->buffer_address[buf_index];
- CopyLeft = CopySize;
- if (CopySize >= pDes->buffer_size[buf_index]) {
- CopyLeft = pDes->buffer_size[buf_index];
-
- // Get the next buffer of descriptor
- buf_index++;
- buf_index %= MAX_DESCRIPTOR_BUFFER_INDEX;
- } else {
- u8 *pctmp = pDes->buffer_address[buf_index];
- pctmp += CopySize;
- pDes->buffer_address[buf_index] = pctmp;
- pDes->buffer_size[buf_index] -= CopySize;
- }
-
- memcpy(buffer, src_buffer, CopyLeft);
- buffer += CopyLeft;
- CopySize -= CopyLeft;
- }
-
- // 931130.5.n
- if (pMds->MicAdd) {
- if (!SizeLeft) {
- pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - pMds->MicAdd;
- pMds->MicWriteSize[ pMds->MicWriteIndex ] = pMds->MicAdd;
- pMds->MicAdd = 0;
- }
- else if( SizeLeft < 8 ) //931130.5.p
- {
- pMds->MicAdd = SizeLeft;
- pMds->MicWriteAddress[ pMds->MicWriteIndex ] = buffer - ( 8 - SizeLeft );
- pMds->MicWriteSize[ pMds->MicWriteIndex ] = 8 - SizeLeft;
- pMds->MicWriteIndex++;
- }
- }
-
- // Does it need to generate the new header for next mpdu?
- if (SizeLeft) {
- buffer = TargetBuffer + Size; // Get the next 4n start address
- memcpy( buffer, TargetBuffer, 32 );//Copy 8B USB +24B 802.11
- pT00 = (PT00_DESCRIPTOR)buffer;
- pT00->T00_first_mpdu = 0;
- }
-
- FragmentCount++;
- }
-
- pT00->T00_last_mpdu = 1;
- pT00->T00_IsLastMpdu = 1;
- buffer = (u8 *)pT00 + 8; // +8 for USB hdr
- buffer[1] &= ~0x04; // Clear more frag bit of 802.11 frame control
- pDes->FragmentCount = FragmentCount; // Update the correct fragment number
- return Size;
-}
-
-
-void
-Mds_DurationSet( struct wbsoft_priv * adapter, PDESCRIPTOR pDes, u8 *buffer )
-{
- PT00_DESCRIPTOR pT00;
- PT01_DESCRIPTOR pT01;
- u16 Duration, NextBodyLen, OffsetSize;
- u8 Rate, i;
- unsigned char CTS_on = false, RTS_on = false;
- PT00_DESCRIPTOR pNextT00;
- u16 BodyLen = 0;
- unsigned char boGroupAddr = false;
-
- OffsetSize = pDes->FragmentThreshold + 32 + 3;
- OffsetSize &= ~0x03;
- Rate = pDes->TxRate >> 1;
- if (!Rate)
- Rate = 1;
-
- pT00 = (PT00_DESCRIPTOR)buffer;
- pT01 = (PT01_DESCRIPTOR)(buffer+4);
- pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
-
- if( buffer[ DOT_11_DA_OFFSET+8 ] & 0x1 ) // +8 for USB hdr
- boGroupAddr = true;
-
- //========================================
- // Set RTS/CTS mechanism
- //========================================
- if (!boGroupAddr)
- {
- //NOTE : If the protection mode is enabled and the MSDU will be fragmented,
- // the tx rates of MPDUs will all be DSSS rates. So it will not use
- // CTS-to-self in this case. CTS-To-self will only be used when without
- // fragmentation. -- 20050112
- BodyLen = (u16)pT00->T00_frame_length; //include 802.11 header
- BodyLen += 4; //CRC
-
- if( BodyLen >= CURRENT_RTS_THRESHOLD )
- RTS_on = true; // Using RTS
- else
- {
- if( pT01->T01_modulation_type ) // Is using OFDM
- {
- if( CURRENT_PROTECT_MECHANISM ) // Is using protect
- CTS_on = true; // Using CTS
- }
- }
- }
-
- if( RTS_on || CTS_on )
- {
- if( pT01->T01_modulation_type) // Is using OFDM
- {
- //CTS duration
- // 2 SIFS + DATA transmit time + 1 ACK
- // ACK Rate : 24 Mega bps
- // ACK frame length = 14 bytes
- Duration = 2*DEFAULT_SIFSTIME +
- 2*PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
- ((BodyLen*8 + 22 + Rate*4 - 1)/(Rate*4))*Tsym +
- ((112 + 22 + 95)/96)*Tsym;
- }
- else //DSSS
- {
- //CTS duration
- // 2 SIFS + DATA transmit time + 1 ACK
- // Rate : ?? Mega bps
- // ACK frame length = 14 bytes
- if( pT01->T01_plcp_header_length ) //long preamble
- Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
- else
- Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*2;
-
- Duration += ( ((BodyLen + 14)*8 + Rate-1) / Rate +
- DEFAULT_SIFSTIME*2 );
- }
-
- if( RTS_on )
- {
- if( pT01->T01_modulation_type ) // Is using OFDM
- {
- //CTS + 1 SIFS + CTS duration
- //CTS Rate : 24 Mega bps
- //CTS frame length = 14 bytes
- Duration += (DEFAULT_SIFSTIME +
- PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION +
- ((112 + 22 + 95)/96)*Tsym);
- }
- else
- {
- //CTS + 1 SIFS + CTS duration
- //CTS Rate : ?? Mega bps
- //CTS frame length = 14 bytes
- if( pT01->T01_plcp_header_length ) //long preamble
- Duration += LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
- else
- Duration += SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
-
- Duration += ( ((112 + Rate-1) / Rate) + DEFAULT_SIFSTIME );
- }
- }
-
- // Set the value into USB descriptor
- pT01->T01_add_rts = RTS_on ? 1 : 0;
- pT01->T01_add_cts = CTS_on ? 1 : 0;
- pT01->T01_rts_cts_duration = Duration;
- }
-
- //=====================================
- // Fill the more fragment descriptor
- //=====================================
- if( boGroupAddr )
- Duration = 0;
- else
- {
- for( i=pDes->FragmentCount-1; i>0; i-- )
- {
- NextBodyLen = (u16)pNextT00->T00_frame_length;
- NextBodyLen += 4; //CRC
-
- if( pT01->T01_modulation_type )
- {
- //OFDM
- // data transmit time + 3 SIFS + 2 ACK
- // Rate : ??Mega bps
- // ACK frame length = 14 bytes, tx rate = 24M
- Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION * 3;
- Duration += (((NextBodyLen*8 + 22 + Rate*4 - 1)/(Rate*4)) * Tsym +
- (((2*14)*8 + 22 + 95)/96)*Tsym +
- DEFAULT_SIFSTIME*3);
- }
- else
- {
- //DSSS
- // data transmit time + 2 ACK + 3 SIFS
- // Rate : ??Mega bps
- // ACK frame length = 14 bytes
- //TODO :
- if( pT01->T01_plcp_header_length ) //long preamble
- Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
- else
- Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME*3;
-
- Duration += ( ((NextBodyLen + (2*14))*8 + Rate-1) / Rate +
- DEFAULT_SIFSTIME*3 );
- }
-
- ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
-
- //----20061009 add by anson's endian
- pNextT00->value = cpu_to_le32(pNextT00->value);
- pT01->value = cpu_to_le32( pT01->value );
- //----end 20061009 add by anson's endian
-
- buffer += OffsetSize;
- pT01 = (PT01_DESCRIPTOR)(buffer+4);
- if (i != 1) //The last fragment will not have the next fragment
- pNextT00 = (PT00_DESCRIPTOR)(buffer+OffsetSize);
- }
-
- //=====================================
- // Fill the last fragment descriptor
- //=====================================
- if( pT01->T01_modulation_type )
- {
- //OFDM
- // 1 SIFS + 1 ACK
- // Rate : 24 Mega bps
- // ACK frame length = 14 bytes
- Duration = PREAMBLE_PLUS_SIGNAL_PLUS_SIGNALEXTENSION;
- //The Tx rate of ACK use 24M
- Duration += (((112 + 22 + 95)/96)*Tsym + DEFAULT_SIFSTIME );
- }
- else
- {
- // DSSS
- // 1 ACK + 1 SIFS
- // Rate : ?? Mega bps
- // ACK frame length = 14 bytes(112 bits)
- if( pT01->T01_plcp_header_length ) //long preamble
- Duration = LONG_PREAMBLE_PLUS_PLCPHEADER_TIME;
- else
- Duration = SHORT_PREAMBLE_PLUS_PLCPHEADER_TIME;
-
- Duration += ( (112 + Rate-1)/Rate + DEFAULT_SIFSTIME );
- }
- }
-
- ((u16 *)buffer)[5] = cpu_to_le16(Duration);// 4 USHOR for skip 8B USB, 2USHORT=FC + Duration
- pT00->value = cpu_to_le32(pT00->value);
- pT01->value = cpu_to_le32(pT01->value);
- //--end 20061009 add
-
-}