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|
{-# LANGUAGE CApiFFI #-}
module Hsm.Cam.FFI
( frameStride
, frameBufferLength
, frameWidth
, frameHeight
, frameLine
, makeLogger
, registerLogger
, makeCallback
, registerCallback
, startCameraManager
, stopCameraManager
, acquireCamera
, releaseCamera
, allocateFrameBuffer
, freeFrameBuffer
, startCamera
, stopCamera
, createRequest
, getDmaBufferFd
, requestFrame
) where
import Foreign.C.String (CString)
import Foreign.C.Types (CInt(CInt))
import Foreign.Ptr (FunPtr)
import System.Posix.Types (Fd(Fd))
type Logger = Int -> CString -> IO ()
type Callback = IO ()
foreign import capi unsafe "Cam.hpp value FRAME_WIDTH" frameWidth :: Int
foreign import capi unsafe "Cam.hpp value FRAME_HEIGHT" frameHeight :: Int
foreign import capi unsafe "Cam.hpp value FRAME_LINE" frameLine :: Int
foreign import capi unsafe "Cam.hpp value FRAME_STRIDE" frameStride :: Int
foreign import capi unsafe "Cam.hpp value FRAME_BUFFER_LENGTH" frameBufferLength :: Int
foreign import ccall unsafe "wrapper" makeLogger :: Logger -> IO (FunPtr Logger)
foreign import ccall safe "Cam.hpp register_logger" registerLogger :: FunPtr Logger -> IO ()
foreign import ccall unsafe "wrapper" makeCallback :: Callback -> IO (FunPtr Callback)
foreign import ccall safe "Cam.hpp register_callback" registerCallback :: FunPtr Callback -> IO ()
foreign import ccall safe "Cam.hpp start_camera_manager" startCameraManager :: IO Int
foreign import ccall safe "Cam.hpp stop_camera_manager" stopCameraManager :: IO ()
foreign import ccall safe "Cam.hpp acquire_camera" acquireCamera :: IO Int
foreign import ccall safe "Cam.hpp release_camera" releaseCamera :: IO ()
foreign import ccall safe "Cam.hpp allocate_frame_buffer" allocateFrameBuffer :: IO Int
foreign import ccall safe "Cam.hpp free_frame_buffer" freeFrameBuffer :: IO ()
foreign import ccall safe "Cam.hpp start_camera" startCamera :: IO Int
foreign import ccall safe "Cam.hpp stop_camera" stopCamera :: IO ()
foreign import ccall safe "Cam.hpp create_request" createRequest :: IO Int
foreign import ccall safe "Cam.hpp get_dma_buffer_fd" getDmaBufferFd :: IO Fd
foreign import ccall safe "Cam.hpp request_frame" requestFrame :: IO ()
|
