bitpack.hxx

// dawn/include/dawn/prog/bitpack.hxx
//
// SPDX-License-Identifier: Apache-2.0
//
 
#pragma once
 
#include <cstdint>
#include <inttypes.h>
#include <vector>
 
#include "dawn/io/ddata.hxx"
#include "dawn/porting/config.hxx"
#include "dawn/prog/common.hxx"
 
namespace dawn
{
// Forward declaration
 
class CIOCommon;
 
class CProgBitPack : public CProgCommon
{
public:
  enum
  {
    PROG_BITPACK_CFG_FIRST = 0,
    PROG_BITPACK_CFG_INPUTS = 1,
    PROG_BITPACK_CFG_OUTPUT = 2,
    PROG_BITPACK_CFG_LAST = 31
  };
 
  explicit CProgBitPack(CDescObject &desc);
 
  ~CProgBitPack() override;
 
#ifdef CONFIG_DAWN_OBJECT_HAS_NAME
  const char *getClassNameStr() const override
  {
    return "bitpack";
  }
#endif
 
  int configure() override;
  int init() override;
  int deinit() override;
  int doStart() override;
  int doStop() override;
  bool hasThread() const override;
 
  constexpr static SObjectId::ObjectId objectId(uint16_t inst)
  {
    return SObjectId::objectId(
      SObjectId::OBJTYPE_PROG, CProgCommon::PROG_CLASS_BITPACK, SObjectId::DTYPE_ANY, 0, inst);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgId(bool rw, uint8_t size, uint8_t id)
  {
    return SObjectCfg::objectCfg(
      SObjectId::OBJTYPE_PROG, CProgCommon::PROG_CLASS_BITPACK, SObjectId::DTYPE_ANY, rw, size, id);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgIdInputs(uint16_t size)
  {
    return CProgBitPack::cfgId(false, size, PROG_BITPACK_CFG_INPUTS);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgIdOutput()
  {
    return CProgBitPack::cfgId(false, 1, PROG_BITPACK_CFG_OUTPUT);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgIdIOBind(uint16_t = 0)
  {
    return CProgBitPack::cfgId(false, 0, 0);
  }
 
private:
  struct SBitInput
  {
    CProgBitPack *owner;
    CIOCommon *io;
    SObjectId::ObjectId ioId;
    uint32_t bit;
    io_ddata_t *currentData;
  };
 
  CIOCommon *output;             
  SObjectId::ObjectId outputId;  
  std::vector<SBitInput> inputs; 
  io_ddata_t *outputData;        
  bool active;                   
  bool registered;               
 
  static int ioNotifierCb(void *priv, io_ddata_t *data);
 
  int configureDesc(const CDescObject &desc);
  int allocInput(SObjectId::ObjectId ioId, uint32_t bit);
  void updateOutput();
};
} // Namespace dawn