OpenCSD - CoreSight Trace Decode Library  1.3.3
trc_pkt_decode_base.h
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34 
35 #ifndef ARM_TRC_PKT_DECODE_BASE_H_INCLUDED
36 #define ARM_TRC_PKT_DECODE_BASE_H_INCLUDED
37 
38 #include "trc_component.h"
39 #include "comp_attach_pt_t.h"
40 
45 
62 {
63 public:
64  TrcPktDecodeI(const char *component_name);
65  TrcPktDecodeI(const char *component_name, int instIDNum);
66  virtual ~TrcPktDecodeI() {};
67 
71 
72  void setUsesMemAccess(bool bUsesMemaccess) { m_uses_memaccess = bUsesMemaccess; };
73  const bool getUsesMemAccess() const { return m_uses_memaccess; };
74 
75  void setUsesIDecode(bool bUsesIDecode) { m_uses_idecode = bUsesIDecode; };
76  const bool getUsesIDecode() const { return m_uses_idecode; };
77 
78 protected:
79 
80  /* implementation packet decoding interface */
82  virtual ocsd_datapath_resp_t onEOT() = 0;
86  virtual const uint8_t getCoreSightTraceID() = 0;
87 
88  /* init handling */
89  const bool checkInit();
90  /* Called on first init confirmation */
91  virtual void onFirstInitOK() {};
92 
93  /* data output */
94  ocsd_datapath_resp_t outputTraceElement(const OcsdTraceElement &elem); // use current index
95  ocsd_datapath_resp_t outputTraceElementIdx(ocsd_trc_index_t idx, const OcsdTraceElement &elem); // use supplied index (where decoder caches elements)
96 
97  /* target access */
98  ocsd_err_t accessMemory(const ocsd_vaddr_t address, const ocsd_mem_space_acc_t mem_space, uint32_t *num_bytes, uint8_t *p_buffer);
100 
101  /* instruction decode */
103 
107 
109 
112 
113  std::string init_err_msg;
114 
117 
118 };
119 
120 inline TrcPktDecodeI::TrcPktDecodeI(const char *component_name) :
121  TraceComponent(component_name),
122  m_index_curr_pkt(0),
123  m_decode_init_ok(false),
124  m_config_init_ok(false),
125  m_uses_memaccess(true),
126  m_uses_idecode(true)
127 {
128 }
129 
130 inline TrcPktDecodeI::TrcPktDecodeI(const char *component_name, int instIDNum) :
131  TraceComponent(component_name, instIDNum),
132  m_index_curr_pkt(0),
133  m_decode_init_ok(false),
134  m_config_init_ok(false),
135  m_uses_memaccess(true),
136  m_uses_idecode(true)
137 {
138 }
139 
140 inline const bool TrcPktDecodeI::checkInit()
141 {
142  if(!m_decode_init_ok)
143  {
144  if(!m_config_init_ok)
145  init_err_msg = "No decoder configuration information";
147  init_err_msg = "No element output interface attached and enabled";
149  init_err_msg = "No memory access interface attached and enabled";
151  init_err_msg = "No instruction decoder interface attached and enabled";
152  else
153  m_decode_init_ok = true;
154  if (m_decode_init_ok)
155  onFirstInitOK();
156  }
157  return m_decode_init_ok;
158 }
159 
161 {
163 }
164 
166 {
167  return m_trace_elem_out.first()->TraceElemIn(idx, getCoreSightTraceID(), elem);
168 }
169 
171 {
172  if(m_uses_idecode)
173  return m_instr_decode.first()->DecodeInstruction(instr_info);
175 }
176 
177 inline ocsd_err_t TrcPktDecodeI::accessMemory(const ocsd_vaddr_t address, const ocsd_mem_space_acc_t mem_space, uint32_t *num_bytes, uint8_t *p_buffer)
178 {
179  if(m_uses_memaccess)
180  return m_mem_access.first()->ReadTargetMemory(address,getCoreSightTraceID(),mem_space, num_bytes,p_buffer);
182 }
183 
185 {
186  if (!m_uses_memaccess)
189  return OCSD_OK;
190 }
191 
192 /**********************************************************************/
193 template <class P, class Pc>
194 class TrcPktDecodeBase : public TrcPktDecodeI, public IPktDataIn<P>
195 {
196 public:
197  TrcPktDecodeBase(const char *component_name);
198  TrcPktDecodeBase(const char *component_name, int instIDNum);
199  virtual ~TrcPktDecodeBase();
200 
202  const ocsd_trc_index_t index_sop,
203  const P *p_packet_in);
204 
205 
206  /* protocol configuration */
207  ocsd_err_t setProtocolConfig(const Pc *config);
208  const Pc * getProtocolConfig() const { return m_config; };
209 
210 protected:
212 
213  /* the protocol configuration */
214  Pc * m_config;
215  /* the current input packet */
216  const P * m_curr_packet_in;
217 
218 };
219 
220 
221 template <class P, class Pc> TrcPktDecodeBase<P, Pc>::TrcPktDecodeBase(const char *component_name) :
222  TrcPktDecodeI(component_name),
223  m_config(0)
224 {
225 }
226 
227 template <class P, class Pc> TrcPktDecodeBase<P, Pc>::TrcPktDecodeBase(const char *component_name, int instIDNum) :
228  TrcPktDecodeI(component_name,instIDNum),
229  m_config(0)
230 {
231 }
232 
233 template <class P, class Pc> TrcPktDecodeBase<P, Pc>::~TrcPktDecodeBase()
234 {
235  ClearConfigObj();
236 }
237 
239  const ocsd_trc_index_t index_sop,
240  const P *p_packet_in)
241 {
243  if(!checkInit())
244  {
245  LogError(ocsdError(OCSD_ERR_SEV_ERROR,OCSD_ERR_NOT_INIT,init_err_msg));
247  }
248 
249  switch(op)
250  {
251  case OCSD_OP_DATA:
252  if(p_packet_in == 0)
253  {
256  }
257  else
258  {
259  m_curr_packet_in = p_packet_in;
260  m_index_curr_pkt = index_sop;
261  resp = processPacket();
262  }
263  break;
264 
265  case OCSD_OP_EOT:
266  resp = onEOT();
267  break;
268 
269  case OCSD_OP_FLUSH:
270  resp = onFlush();
271  break;
272 
273  case OCSD_OP_RESET:
274  resp = onReset();
275  break;
276 
277  default:
280  break;
281  }
282  return resp;
283 }
284 
285  /* protocol configuration */
286 template <class P, class Pc> ocsd_err_t TrcPktDecodeBase<P, Pc>::setProtocolConfig(const Pc *config)
287 {
289  if(config != 0)
290  {
291  ClearConfigObj(); // remove any current config
292  m_config = new (std::nothrow) Pc(*config); // make a copy of the config - don't rely on the object passed in being valid outside the context of the call.
293  if(m_config != 0)
294  {
295  err = onProtocolConfig();
296  if(err == OCSD_OK)
297  m_config_init_ok = true;
298  }
299  else
300  err = OCSD_ERR_MEM;
301  }
302  return err;
303 }
304 
305 template <class P, class Pc> void TrcPktDecodeBase<P, Pc>::ClearConfigObj()
306 {
307  if(m_config)
308  {
309  delete m_config;
310  m_config = 0;
311  }
312 }
313 
315 #endif // ARM_TRC_PKT_DECODE_BASE_H_INCLUDED
316 
317 /* End of File trc_pkt_decode_base.h */
virtual ocsd_err_t DecodeInstruction(ocsd_instr_info *instr_info)=0
Interface class providing an input for discrete protocol packets.
Definition: trc_pkt_in_i.h:55
virtual ocsd_err_t ReadTargetMemory(const ocsd_vaddr_t address, const uint8_t cs_trace_id, const ocsd_mem_space_acc_t mem_space, uint32_t *num_bytes, uint8_t *p_buffer)=0
virtual void InvalidateMemAccCache(const uint8_t cs_trace_id)=0
virtual ocsd_datapath_resp_t TraceElemIn(const ocsd_trc_index_t index_sop, const uint8_t trc_chan_id, const OcsdTraceElement &elem)=0
Generic trace element class.
Definition: trc_gen_elem.h:50
Base class for all decode components in the library.
Definition: trc_component.h:57
const Pc * getProtocolConfig() const
componentAttachPt< ITargetMemAccess > m_mem_access
virtual void onFirstInitOK()
virtual ocsd_datapath_resp_t processPacket()=0
componentAttachPt< ITrcGenElemIn > m_trace_elem_out
componentAttachPt< IInstrDecode > * getInstrDecodeAttachPt()
componentAttachPt< IInstrDecode > m_instr_decode
const bool getUsesIDecode() const
ocsd_trc_index_t m_index_curr_pkt
void setUsesMemAccess(bool bUsesMemaccess)
const bool getUsesMemAccess() const
virtual ~TrcPktDecodeI()
componentAttachPt< ITrcGenElemIn > * getTraceElemOutAttachPt()
void setUsesIDecode(bool bUsesIDecode)
virtual ocsd_err_t onProtocolConfig()=0
std::string init_err_msg
error message for init error
componentAttachPt< ITargetMemAccess > * getMemoryAccessAttachPt()
virtual ocsd_datapath_resp_t onFlush()=0
virtual const uint8_t getCoreSightTraceID()=0
virtual ocsd_datapath_resp_t onReset()=0
bool m_decode_init_ok
set true if all attachments in place for decode. (remove checks in main throughput paths)
virtual ocsd_datapath_resp_t onEOT()=0
bool m_config_init_ok
set true if config set.
const bool hasAttachedAndEnabled() const
OpenCSD : Component attachment point interface class.
virtual T * first()
uint32_t ocsd_trc_index_t
Definition: ocsd_if_types.h:67
enum _ocsd_datapath_resp_t ocsd_datapath_resp_t
enum _ocsd_mem_space_acc_t ocsd_mem_space_acc_t
enum _ocsd_datapath_op_t ocsd_datapath_op_t
enum _ocsd_err_t ocsd_err_t
uint64_t ocsd_vaddr_t
@ OCSD_ERR_DCD_INTERFACE_UNUSED
@ OCSD_OK
Definition: ocsd_if_types.h:88
@ OCSD_ERR_INVALID_PARAM_VAL
Definition: ocsd_if_types.h:94
@ OCSD_ERR_NOT_INIT
Definition: ocsd_if_types.h:91
@ OCSD_ERR_MEM
Definition: ocsd_if_types.h:90
@ OCSD_RESP_CONT
@ OCSD_RESP_FATAL_NOT_INIT
@ OCSD_RESP_FATAL_INVALID_PARAM
@ OCSD_RESP_FATAL_INVALID_OP
@ OCSD_OP_EOT
@ OCSD_OP_FLUSH
@ OCSD_OP_DATA
@ OCSD_OP_RESET
@ OCSD_ERR_SEV_ERROR
ocsd_err_t accessMemory(const ocsd_vaddr_t address, const ocsd_mem_space_acc_t mem_space, uint32_t *num_bytes, uint8_t *p_buffer)
TrcPktDecodeBase(const char *component_name)
virtual ocsd_datapath_resp_t PacketDataIn(const ocsd_datapath_op_t op, const ocsd_trc_index_t index_sop, const P *p_packet_in)
TrcPktDecodeI(const char *component_name)
ocsd_datapath_resp_t outputTraceElement(const OcsdTraceElement &elem)
TrcPktDecodeBase(const char *component_name, int instIDNum)
ocsd_err_t instrDecode(ocsd_instr_info *instr_info)
ocsd_err_t setProtocolConfig(const Pc *config)
ocsd_datapath_resp_t outputTraceElementIdx(ocsd_trc_index_t idx, const OcsdTraceElement &elem)
ocsd_err_t invalidateMemAccCache()
const bool checkInit()
OpenCSD : Base trace decode component.