bitsplit.hxx

// dawn/include/dawn/prog/bitsplit.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
{
class CIOCommon;
 
class CProgBitSplit : public CProgCommon
{
public:
  enum
  {
    PROG_BITSPLIT_CFG_FIRST = 0,
    PROG_BITSPLIT_CFG_IOBIND = 1,
    PROG_BITSPLIT_CFG_BITS = 2,
    PROG_BITSPLIT_CFG_LAST = 31
  };
 
  explicit CProgBitSplit(CDescObject &desc);
  ~CProgBitSplit() override;
 
#ifdef CONFIG_DAWN_OBJECT_HAS_NAME
  const char *getClassNameStr() const override
  {
    return "bitsplit";
  }
#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_BITSPLIT, 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_BITSPLIT,
                                 SObjectId::DTYPE_ANY,
                                 rw,
                                 size,
                                 id);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgIdIOBind(uint16_t size = 2)
  {
    return CProgBitSplit::cfgId(false, size, PROG_BITSPLIT_CFG_IOBIND);
  }
 
  constexpr static SObjectCfg::ObjectCfgId cfgIdBits(uint16_t size = 2)
  {
    return CProgBitSplit::cfgId(false, size, PROG_BITSPLIT_CFG_BITS);
  }
 
private:
  struct SBitSplitBind
  {
    CProgBitSplit *owner;
    SObjectId::ObjectId sourceId;
    SObjectId::ObjectId outputId;
    CIOCommon *source;
    CIOCommon *output;
    io_ddata_t *sourceData;
    io_ddata_t *outputData;
    uint32_t bit;
  };
 
  std::vector<SBitSplitBind *> binds; 
  std::vector<uint32_t> bitPositions; 
  bool active;                        
  bool registered;                    
 
  static int ioNotifierCb(void *priv, io_ddata_t *data);
 
  int configureDesc(const CDescObject &desc);
  int allocBind(SObjectId::ObjectId sourceId, SObjectId::ObjectId outputId);
  void refreshSource(SObjectId::ObjectId sourceId);
  void updateBind(SBitSplitBind *bind, io_ddata_t *data);
};
} // Namespace dawn