src/add-ons/media/media-add-ons/usb_webcam/addons/NW80xCamDevice.h

   1 /*
   2  * Copyright 2004-2008, François Revol, <revol@free.fr>.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _NW80X_CAM_DEVICE_H
   6 #define _NW80X_CAM_DEVICE_H
   7
   8 #include "CamDevice.h"
   9
  10 #define STV_REG_COUNT   0x0c
  11 // Control registers of the STV0600 ASIC
  12 #define STV_I2C_WRITE   0x400
  13 #define STV_I2C_WRITE1  0x400
  14 #define STV_I2C_READ   0x1410
  15 #define STV_ISO_ENABLE 0x1440
  16 #define STV_SCAN_RATE  0x1443
  17 #define STV_ISO_SIZE   0x15c1
  18 #define STV_Y_CTRL     0x15c3
  19 #define STV_X_CTRL     0x1680
  20 #define STV_REG00      0x1500
  21 #define STV_REG01      0x1501
  22 #define STV_REG02      0x1502
  23 #define STV_REG03      0x1503
  24 #define STV_REG04      0x1504
  25 #define STV_REG23      0x0423
  26
  27
  28 // This class represents each webcam
  29 class NW80xCamDevice : public CamDevice {
  30         public:
  31                                                 NW80xCamDevice(CamDeviceAddon &_addon, BUSBDevice* _device);
  32                                                 ~NW80xCamDevice();
  33         virtual bool            SupportsBulk();
  34         virtual bool            SupportsIsochronous();
  35         virtual status_t        StartTransfer();
  36         virtual status_t        StopTransfer();
  37
  38         // generic register-like access
  39         virtual ssize_t         WriteReg(uint16 address, uint8 *data, size_t count=1);
  40         virtual ssize_t         ReadReg(uint16 address, uint8 *data, size_t count=1, bool cached=false);
  41
  42         // I2C-like access
  43         virtual status_t        GetStatusIIC();
  44         virtual status_t        WaitReadyIIC();
  45         virtual ssize_t         WriteIIC(uint8 address, uint8 *data, size_t count=1);
  46         virtual ssize_t         ReadIIC(uint8 address, uint8 *data);
  47         virtual ssize_t         ReadIIC8(uint8 address, uint8 *data);
  48         virtual ssize_t         ReadIIC16(uint8 address, uint16 *data);
  49         virtual status_t        SetIICBitsMode(size_t bits=8);
  50
  51         private:
  52         virtual status_t        SendCommand(uint8 dir, uint8 request, uint16 value,
  53                                                                         uint16 index, uint16 length, void* data);
  54 };
  55
  56 // the addon itself, that instanciate
  57
  58 class NW80xCamDeviceAddon : public CamDeviceAddon
  59 {
  60         public:
  61                                                 NW80xCamDeviceAddon(WebCamMediaAddOn* webcam);
  62         virtual                         ~NW80xCamDeviceAddon();
  63
  64         virtual const char      *BrandName();
  65         virtual NW80xCamDevice  *Instantiate(CamRoster &roster, BUSBDevice *from);
  66
  67 };
  68
  69 #endif /* _NW80X_CAM_CAM_DEVICE_H */