drivers/usb/nt4compat/usbdriver/gendrv.h

   1 #ifndef __GENDRV_H__
   2 #define __GENDRV_H__
   3
   4 #define GENDRV_MAX_EXT_DRVR             2
   5 #define GENDRV_DRVR_FLAG_IF_DRVR        0x01
   6
   7 #define GENDRV_MSG_ADDDEVICE            0x01
   8 #define GENDRV_MSG_STOPDEVICE           0x02
   9 #define GENDRV_MSG_DISCDEVICE           0x03
  10
  11 typedef struct _GENDRV_EXT_DRVR_ENTRY
  12 {
  13         LIST_ENTRY                              drvr_link;      // used for dynamic load/unload driver
  14         ULONG                                   drvr_key;       // used to find the driver loaded, the key
  15                                             // is ( vendor_id << 16 )|( product_id ) or
  16                                                                                 // ( class_id << 16 ) | ( sub_class_id << 8 ) | ( protocol_id ))
  17         PDRIVER_OBJECT                  pext_drvr;      // the external driver count
  18         ULONG                                   ref_count;      // number of devices attached
  19         LIST_HEAD                               dev_list;       // link the devices by deviceExtension->dev_obj_link
  20
  21 } GENDRV_EXT_DRVR_ENTRY, *PGENDRV_EXT_DRVR_ENTRY;
  22
  23 typedef struct _GENDRV_DRVR_EXTENSION
  24 {
  25         FAST_MUTEX                              drvr_ext_mutex;
  26         ULONG                                   ext_drvr_count; // loaded driver count
  27         LIST_HEAD                               ext_drvr_list;
  28         GENDRV_EXT_DRVR_ENTRY   ext_drvr_array[ GENDRV_MAX_EXT_DRVR ];
  29
  30 }GENDRV_DRVR_EXTENSION, *PGENDRV_DRVR_EXTENSION;
  31
  32 typedef struct _GENDRV_IF_CTX
  33 {
  34         UCHAR                                   if_idx;                 // valid for if device
  35         PUSB_INTERFACE_DESC     pif_desc;
  36
  37 } GENDRV_IF_CTX, *PGENDRV_IF_IDX;
  38
  39 typedef struct _GENDRV_DEVICE_EXTENSION
  40 {
  41         //this structure is the device extension for dev_obj
  42         //created for the device.
  43         DEVEXT_HEADER                   dev_ext_hdr;
  44         ULONG                                   flags;
  45         LIST_ENTRY                              dev_obj_link;   // this link is used by the driver object to track the existing dev_objs
  46         PGENDRV_EXT_DRVR_ENTRY  ext_drvr_entry;
  47
  48         PDEVICE_OBJECT                  pdo;                    // Our device object
  49         DEV_HANDLE                              dev_handle;             // handle to the usb_dev under
  50         PUCHAR                                  desc_buf;
  51         UCHAR                                   dev_id;                 // used to build symbolic link
  52         GENDRV_IF_CTX                   if_ctx;
  53
  54         KEVENT                                  sync_event;
  55         KSPIN_LOCK                              dev_lock;
  56
  57         PUSB_DRIVER                             pdriver;
  58         PUSB_DEV_MANAGER                dev_mgr;
  59
  60 } GENDRV_DEVICE_EXTENSION, *PGENDRV_DEVICE_EXTENSION;
  61
  62 #endif