Pileus Git - ~andy/linux/blob - drivers/staging/bcm/InterfaceMisc.c

   1 #include "headers.h"
   2
   3 int InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
   4                 unsigned int addr,
   5                 void *buff,
   6                 int len)
   7 {
   8         int bytes;
   9
  10         if (!psIntfAdapter) {
  11                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Interface Adapter is NULL");
  12                 return -EINVAL;
  13         }
  14
  15         if (psIntfAdapter->psAdapter->device_removed == TRUE) {
  16                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Device got removed");
  17                 return -ENODEV;
  18         }
  19
  20         if ((psIntfAdapter->psAdapter->StopAllXaction == TRUE) && (psIntfAdapter->psAdapter->chip_id >= T3LPB)) {
  21                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "Currently Xaction is not allowed on the bus");
  22                 return -EACCES;
  23         }
  24
  25         if (psIntfAdapter->bSuspended == TRUE || psIntfAdapter->bPreparingForBusSuspend == TRUE) {
  26                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "Bus is in suspended states hence RDM not allowed..");
  27                 return -EACCES;
  28         }
  29         psIntfAdapter->psAdapter->DeviceAccess = TRUE;
  30
  31         bytes = usb_control_msg(psIntfAdapter->udev,
  32                                 usb_rcvctrlpipe(psIntfAdapter->udev, 0),
  33                                 0x02,
  34                                 0xC2,
  35                                 (addr & 0xFFFF),
  36                                 ((addr >> 16) & 0xFFFF),
  37                                 buff,
  38                                 len,
  39                                 5000);
  40
  41         if (-ENODEV == bytes)
  42                 psIntfAdapter->psAdapter->device_removed = TRUE;
  43
  44         if (bytes < 0)
  45                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM failed status :%d", bytes);
  46         else
  47                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM sent %d", bytes);
  48
  49         psIntfAdapter->psAdapter->DeviceAccess = FALSE;
  50         return bytes;
  51 }
  52
  53 int InterfaceWRM(PS_INTERFACE_ADAPTER psIntfAdapter,
  54                 unsigned int addr,
  55                 void *buff,
  56                 int len)
  57 {
  58         int retval = 0;
  59
  60         if (!psIntfAdapter) {
  61                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Interface Adapter  is NULL");
  62                 return -EINVAL;
  63         }
  64
  65         if (psIntfAdapter->psAdapter->device_removed == TRUE) {
  66                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "Device got removed");
  67                 return -ENODEV;
  68         }
  69
  70         if ((psIntfAdapter->psAdapter->StopAllXaction == TRUE) && (psIntfAdapter->psAdapter->chip_id >= T3LPB)) {
  71                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "Currently Xaction is not allowed on the bus...");
  72                 return -EACCES;
  73         }
  74
  75         if (psIntfAdapter->bSuspended == TRUE || psIntfAdapter->bPreparingForBusSuspend == TRUE) {
  76                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "Bus is in suspended states hence RDM not allowed..");
  77                 return -EACCES;
  78         }
  79
  80         psIntfAdapter->psAdapter->DeviceAccess = TRUE;
  81
  82         retval = usb_control_msg(psIntfAdapter->udev,
  83                                 usb_sndctrlpipe(psIntfAdapter->udev, 0),
  84                                 0x01,
  85                                 0x42,
  86                                 (addr & 0xFFFF),
  87                                 ((addr >> 16) & 0xFFFF),
  88                                 buff,
  89                                 len,
  90                                 5000);
  91
  92         if (-ENODEV == retval)
  93                 psIntfAdapter->psAdapter->device_removed = TRUE;
  94
  95         if (retval < 0) {
  96                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "WRM failed status :%d", retval);
  97                 psIntfAdapter->psAdapter->DeviceAccess = FALSE;
  98                 return retval;
  99         } else {
 100                 psIntfAdapter->psAdapter->DeviceAccess = FALSE;
 101                 BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "WRM sent %d", retval);
 102                 return STATUS_SUCCESS;
 103         }
 104 }
 105
 106 int BcmRDM(void *arg,
 107         unsigned int addr,
 108         void *buff,
 109         int len)
 110 {
 111         return InterfaceRDM((PS_INTERFACE_ADAPTER)arg, addr, buff, len);
 112 }
 113
 114 int BcmWRM(void *arg,
 115         unsigned int addr,
 116         void *buff,
 117         int len)
 118 {
 119         return InterfaceWRM((PS_INTERFACE_ADAPTER)arg, addr, buff, len);
 120 }
 121
 122 int Bcm_clear_halt_of_endpoints(struct bcm_mini_adapter *Adapter)
 123 {
 124         PS_INTERFACE_ADAPTER psIntfAdapter = (PS_INTERFACE_ADAPTER)(Adapter->pvInterfaceAdapter);
 125         int status = STATUS_SUCCESS;
 126
 127         /*
 128          * usb_clear_halt - tells device to clear endpoint halt/stall condition
 129          * @dev: device whose endpoint is halted
 130          * @pipe: endpoint "pipe" being cleared
 131          * @ Context: !in_interrupt ()
 132          *
 133          * usb_clear_halt is the synchrnous call and returns 0 on success else returns with error code.
 134          * This is used to clear halt conditions for bulk and interrupt endpoints only.
 135          * Control and isochronous endpoints never halts.
 136          *
 137          * Any URBs  queued for such an endpoint should normally be unlinked by the driver
 138          * before clearing the halt condition.
 139          *
 140          */
 141
 142         /* Killing all the submitted urbs to different end points. */
 143         Bcm_kill_all_URBs(psIntfAdapter);
 144
 145         /* clear the halted/stalled state for every end point */
 146         status = usb_clear_halt(psIntfAdapter->udev, psIntfAdapter->sIntrIn.int_in_pipe);
 147         if (status != STATUS_SUCCESS)
 148                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, INTF_INIT, DBG_LVL_ALL, "Unable to Clear Halt of Interrupt IN end point. :%d ", status);
 149
 150         status = usb_clear_halt(psIntfAdapter->udev, psIntfAdapter->sBulkIn.bulk_in_pipe);
 151         if (status != STATUS_SUCCESS)
 152                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, INTF_INIT, DBG_LVL_ALL, "Unable to Clear Halt of Bulk IN end point. :%d ", status);
 153
 154         status = usb_clear_halt(psIntfAdapter->udev, psIntfAdapter->sBulkOut.bulk_out_pipe);
 155         if (status != STATUS_SUCCESS)
 156                 BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, INTF_INIT, DBG_LVL_ALL, "Unable to Clear Halt of Bulk OUT end point. :%d ", status);
 157
 158         return status;
 159 }
 160
 161 void Bcm_kill_all_URBs(PS_INTERFACE_ADAPTER psIntfAdapter)
 162 {
 163         struct urb *tempUrb = NULL;
 164         unsigned int i;
 165
 166         /*
 167          * usb_kill_urb - cancel a transfer request and wait for it to finish
 168          * @urb: pointer to URB describing a previously submitted request,
 169          * returns nothing as it is void returned API.
 170          *
 171          * This routine cancels an in-progress request. It is guaranteed that
 172          * upon return all completion handlers will have finished and the URB
 173          * will be totally idle and available for reuse
 174          *
 175          * This routine may not be used in an interrupt context (such as a bottom
 176          * half or a completion handler), or when holding a spinlock, or in other
 177          * situations where the caller can't schedule().
 178          *
 179          */
 180
 181         /* Cancel submitted Interrupt-URB's */
 182         if (psIntfAdapter->psInterruptUrb) {
 183                 if (psIntfAdapter->psInterruptUrb->status == -EINPROGRESS)
 184                         usb_kill_urb(psIntfAdapter->psInterruptUrb);
 185         }
 186
 187         /* Cancel All submitted TX URB's */
 188         for (i = 0; i < MAXIMUM_USB_TCB; i++) {
 189                 tempUrb = psIntfAdapter->asUsbTcb[i].urb;
 190                 if (tempUrb) {
 191                         if (tempUrb->status == -EINPROGRESS)
 192                                 usb_kill_urb(tempUrb);
 193                 }
 194         }
 195
 196         for (i = 0; i < MAXIMUM_USB_RCB; i++) {
 197                 tempUrb = psIntfAdapter->asUsbRcb[i].urb;
 198                 if (tempUrb) {
 199                         if (tempUrb->status == -EINPROGRESS)
 200                                 usb_kill_urb(tempUrb);
 201                 }
 202         }
 203
 204         atomic_set(&psIntfAdapter->uNumTcbUsed, 0);
 205         atomic_set(&psIntfAdapter->uCurrTcb, 0);
 206
 207         atomic_set(&psIntfAdapter->uNumRcbUsed, 0);
 208         atomic_set(&psIntfAdapter->uCurrRcb, 0);
 209 }
 210
 211 void putUsbSuspend(struct work_struct *work)
 212 {
 213         PS_INTERFACE_ADAPTER psIntfAdapter = NULL;
 214         struct usb_interface *intf = NULL;
 215         psIntfAdapter = container_of(work, S_INTERFACE_ADAPTER, usbSuspendWork);
 216         intf = psIntfAdapter->interface;
 217
 218         if (psIntfAdapter->bSuspended == FALSE)
 219                 usb_autopm_put_interface(intf);
 220 }
 221