drivers/staging/winbond/wblinux.c

   1 //============================================================================
   2 //  Copyright (c) 1996-2005 Winbond Electronic Corporation
   3 //
   4 //  Module Name:
   5 //    wblinux.c
   6 //
   7 //  Abstract:
   8 //    Linux releated routines
   9 //
  10 //============================================================================
  11 #include "os_common.h"
  12
  13 u32
  14 WBLINUX_MemoryAlloc(void* *VirtualAddress, u32 Length)
  15 {
  16         *VirtualAddress = kzalloc( Length, GFP_ATOMIC ); //GFP_KERNEL is not suitable
  17
  18         if (*VirtualAddress == NULL)
  19                 return 0;
  20         return 1;
  21 }
  22
  23 s32
  24 EncapAtomicInc(struct wb35_adapter * adapter, void* pAtomic)
  25 {
  26         u32     ltmp;
  27         u32 *   pltmp = (u32 *)pAtomic;
  28         spin_lock_irq( &adapter->AtomicSpinLock );
  29         (*pltmp)++;
  30         ltmp = (*pltmp);
  31         spin_unlock_irq( &adapter->AtomicSpinLock );
  32         return ltmp;
  33 }
  34
  35 s32
  36 EncapAtomicDec(struct wb35_adapter * adapter, void* pAtomic)
  37 {
  38         u32     ltmp;
  39         u32 *   pltmp = (u32 *)pAtomic;
  40         spin_lock_irq( &adapter->AtomicSpinLock );
  41         (*pltmp)--;
  42         ltmp = (*pltmp);
  43         spin_unlock_irq( &adapter->AtomicSpinLock );
  44         return ltmp;
  45 }
  46
  47 unsigned char
  48 WBLINUX_Initial(struct wb35_adapter * adapter)
  49 {
  50         spin_lock_init( &adapter->SpinLock );
  51         spin_lock_init( &adapter->AtomicSpinLock );
  52         return true;
  53 }
  54
  55 void
  56 WBLinux_ReceivePacket(struct wb35_adapter * adapter, PRXLAYER1 pRxLayer1)
  57 {
  58         BUG();
  59 }
  60
  61
  62 void
  63 WBLINUX_GetNextPacket(struct wb35_adapter * adapter,  PDESCRIPTOR pDes)
  64 {
  65         BUG();
  66 }
  67
  68 void
  69 WBLINUX_GetNextPacketCompleted(struct wb35_adapter * adapter, PDESCRIPTOR pDes)
  70 {
  71         BUG();
  72 }
  73
  74 void
  75 WBLINUX_Destroy(struct wb35_adapter * adapter)
  76 {
  77         WBLINUX_stop( adapter );
  78 #ifdef _PE_USB_INI_DUMP_
  79         WBDEBUG(("[w35und] unregister_netdev!\n"));
  80 #endif
  81 }
  82
  83 void
  84 WBLINUX_stop(  struct wb35_adapter * adapter )
  85 {
  86         struct sk_buff *pSkb;
  87
  88         if (OS_ATOMIC_INC( adapter, &adapter->ThreadCount ) == 1) {
  89                 // Shutdown module immediately
  90                 adapter->shutdown = 1;
  91
  92                 while (adapter->skb_array[ adapter->skb_GetIndex ]) {
  93                         // Trying to free the un-sending packet
  94                         pSkb = adapter->skb_array[ adapter->skb_GetIndex ];
  95                         adapter->skb_array[ adapter->skb_GetIndex ] = NULL;
  96                         if( in_irq() )
  97                                 dev_kfree_skb_irq( pSkb );
  98                         else
  99                                 dev_kfree_skb( pSkb );
 100
 101                         adapter->skb_GetIndex++;
 102                         adapter->skb_GetIndex %= WBLINUX_PACKET_ARRAY_SIZE;
 103                 }
 104
 105 #ifdef _PE_STATE_DUMP_
 106                 WBDEBUG(( "[w35und] SKB_RELEASE OK\n" ));
 107 #endif
 108         }
 109
 110         OS_ATOMIC_DEC(adapter, &adapter->ThreadCount);
 111 }
 112
 113 void
 114 WbWlanHalt(struct wb35_adapter *adapter)
 115 {
 116         //---------------------
 117         adapter->sLocalPara.ShutDowned = true;
 118
 119         Mds_Destroy(adapter);
 120
 121         // Turn off Rx and Tx hardware ability
 122         hal_stop(&adapter->sHwData);
 123 #ifdef _PE_USB_INI_DUMP_
 124         WBDEBUG(("[w35und] Hal_stop O.K.\n"));
 125 #endif
 126         msleep(100);// Waiting Irp completed
 127
 128         // Destroy the NDIS module
 129         WBLINUX_Destroy(adapter);
 130
 131         // Halt the HAL
 132         hal_halt(&adapter->sHwData, NULL);
 133 }
 134
 135 unsigned char
 136 WbWLanInitialize(struct wb35_adapter *adapter)
 137 {
 138         phw_data_t      pHwData;
 139         u8              *pMacAddr;
 140         u8              *pMacAddr2;
 141         u32             InitStep = 0;
 142         u8              EEPROM_region;
 143         u8              HwRadioOff;
 144
 145         //
 146         // Setting default value for Linux
 147         //
 148         adapter->sLocalPara.region_INF = REGION_AUTO;
 149         adapter->sLocalPara.TxRateMode = RATE_AUTO;
 150         psLOCAL->bMacOperationMode = MODE_802_11_BG;    // B/G mode
 151         adapter->Mds.TxRTSThreshold = DEFAULT_RTSThreshold;
 152         adapter->Mds.TxFragmentThreshold = DEFAULT_FRAGMENT_THRESHOLD;
 153         hal_set_phy_type( &adapter->sHwData, RF_WB_242_1 );
 154         adapter->sLocalPara.MTUsize = MAX_ETHERNET_PACKET_SIZE;
 155         psLOCAL->bPreambleMode = AUTO_MODE;
 156         adapter->sLocalPara.RadioOffStatus.boSwRadioOff = false;
 157         pHwData = &adapter->sHwData;
 158         hal_set_phy_type( pHwData, RF_DECIDE_BY_INF );
 159
 160         //
 161         // Initial each module and variable
 162         //
 163         if (!WBLINUX_Initial(adapter)) {
 164 #ifdef _PE_USB_INI_DUMP_
 165                 WBDEBUG(("[w35und]WBNDIS initialization failed\n"));
 166 #endif
 167                 goto error;
 168         }
 169
 170         // Initial Software variable
 171         adapter->sLocalPara.ShutDowned = false;
 172
 173         //added by ws for wep key error detection
 174         adapter->sLocalPara.bWepKeyError= false;
 175         adapter->sLocalPara.bToSelfPacketReceived = false;
 176         adapter->sLocalPara.WepKeyDetectTimerCount= 2 * 100; /// 2 seconds
 177
 178         // Initial USB hal
 179         InitStep = 1;
 180         pHwData = &adapter->sHwData;
 181         if (!hal_init_hardware(pHwData, adapter))
 182                 goto error;
 183
 184         EEPROM_region = hal_get_region_from_EEPROM( pHwData );
 185         if (EEPROM_region != REGION_AUTO)
 186                 psLOCAL->region = EEPROM_region;
 187         else {
 188                 if (psLOCAL->region_INF != REGION_AUTO)
 189                         psLOCAL->region = psLOCAL->region_INF;
 190                 else
 191                         psLOCAL->region = REGION_USA;   //default setting
 192         }
 193
 194         // Get Software setting flag from hal
 195         adapter->sLocalPara.boAntennaDiversity = false;
 196         if (hal_software_set(pHwData) & 0x00000001)
 197                 adapter->sLocalPara.boAntennaDiversity = true;
 198
 199         //
 200         // For TS module
 201         //
 202         InitStep = 2;
 203
 204         // For MDS module
 205         InitStep = 3;
 206         Mds_initial(adapter);
 207
 208         //=======================================
 209         // Initialize the SME, SCAN, MLME, ROAM
 210         //=======================================
 211         InitStep = 4;
 212         InitStep = 5;
 213         InitStep = 6;
 214
 215         // If no user-defined address in the registry, use the addresss "burned" on the NIC instead.
 216         pMacAddr = adapter->sLocalPara.ThisMacAddress;
 217         pMacAddr2 = adapter->sLocalPara.PermanentAddress;
 218         hal_get_permanent_address( pHwData, adapter->sLocalPara.PermanentAddress );// Reading ethernet address from EEPROM
 219         if (OS_MEMORY_COMPARE(pMacAddr, "\x00\x00\x00\x00\x00\x00", MAC_ADDR_LENGTH )) // Is equal
 220         {
 221                 memcpy( pMacAddr, pMacAddr2, MAC_ADDR_LENGTH );
 222         } else {
 223                 // Set the user define MAC address
 224                 hal_set_ethernet_address( pHwData, adapter->sLocalPara.ThisMacAddress );
 225         }
 226
 227         //get current antenna
 228         psLOCAL->bAntennaNo = hal_get_antenna_number(pHwData);
 229 #ifdef _PE_STATE_DUMP_
 230         WBDEBUG(("Driver init, antenna no = %d\n", psLOCAL->bAntennaNo));
 231 #endif
 232         hal_get_hw_radio_off( pHwData );
 233
 234         // Waiting for HAL setting OK
 235         while (!hal_idle(pHwData))
 236                 msleep(10);
 237
 238         MTO_Init(adapter);
 239
 240         HwRadioOff = hal_get_hw_radio_off( pHwData );
 241         psLOCAL->RadioOffStatus.boHwRadioOff = !!HwRadioOff;
 242
 243         hal_set_radio_mode( pHwData, (unsigned char)(psLOCAL->RadioOffStatus.boSwRadioOff || psLOCAL->RadioOffStatus.boHwRadioOff) );
 244
 245         hal_driver_init_OK(pHwData) = 1; // Notify hal that the driver is ready now.
 246         //set a tx power for reference.....
 247 //      sme_set_tx_power_level(adapter, 12);    FIXME?
 248         return true;
 249
 250 error:
 251         switch (InitStep) {
 252         case 5:
 253         case 4:
 254         case 3: Mds_Destroy( adapter );
 255         case 2:
 256         case 1: WBLINUX_Destroy( adapter );
 257                 hal_halt( pHwData, NULL );
 258         case 0: break;
 259         }
 260
 261         return false;
 262 }
 263
 264 void WBLINUX_ConnectStatus(struct wb35_adapter * adapter, u32 flag)
 265 {
 266         adapter->LinkStatus = flag; // OS_DISCONNECTED  or  OS_CONNECTED
 267 }
 268