thodg/cgminer/libztex.h

• Show log

  Commit

• Hash : f553c50b
  Author :
  Date : 2012-12-22T01:22:42
  

  ztex: if we had only errors in one round we do not count the errors to detect a totally non working fpga we only do that if the last round had some valid nonces. if we would count the errors the automatic megahertz adaption would drop and never recover.

Download

• libztex.h

• /**
   *   libztex.h - headers for Ztex 1.15x fpga board support library
   *
   *   Copyright (c) 2012 nelisky.btc@gmail.com
   *
   *   This work is based upon the Java SDK provided by ztex which is
   *   Copyright (C) 2009-2011 ZTEX GmbH.
   *   http://www.ztex.de
   *
   *   This program is free software; you can redistribute it and/or modify
   *   it under the terms of the GNU General Public License version 2 as
   *   published by the Free Software Foundation.
   *
   *   This program is distributed in the hope that it will be useful, but
   *   WITHOUT ANY WARRANTY; without even the implied warranty of
   *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
   *   General Public License for more details.
   *
   *   You should have received a copy of the GNU General Public License
   *   along with this program; if not, see http://www.gnu.org/licenses/.
  **/
  #ifndef __LIBZTEX_H__
  #define __LIBZTEX_H__
  
  #include <libusb.h>
  
  #define LIBZTEX_MAX_DESCRIPTORS 512
  #define LIBZTEX_SNSTRING_LEN 10
  
  #define LIBZTEX_IDVENDOR 0x221A
  #define LIBZTEX_IDPRODUCT 0x0100
  
  #define LIBZTEX_MAXMAXERRORRATE 0.05
  #define LIBZTEX_ERRORHYSTERESIS 0.1
  #define LIBZTEX_OVERHEATTHRESHOLD 0.4
  
  struct libztex_fpgastate {
  	bool fpgaConfigured;
  	unsigned char fpgaChecksum;
  	uint16_t fpgaBytes;
  	unsigned char fpgaInitB;
  	unsigned char fpgaFlashResult;
  	bool fpgaFlashBitSwap;
  };
  
  struct libztex_device {
  	pthread_mutex_t	mutex;
  	struct libztex_device *root;
  	int16_t fpgaNum;
  	struct libusb_device_descriptor descriptor;
  	libusb_device_handle *hndl; 
  	unsigned char usbbus;
  	unsigned char usbaddress;
  	unsigned char snString[LIBZTEX_SNSTRING_LEN+1];
  	unsigned char productId[4];
  	unsigned char fwVersion;
  	unsigned char interfaceVersion;
  	unsigned char interfaceCapabilities[6];
  	unsigned char moduleReserved[12];
  	uint8_t numNonces;
  	uint16_t offsNonces;
  	double freqM1;	
  	uint8_t freqM;
  	uint8_t freqMaxM;
  	uint8_t freqMDefault;
  	char* bitFileName;
  	bool suspendSupported;
  	double hashesPerClock;
  	uint8_t extraSolutions;
  
  	double errorCount[256];
  	double errorWeight[256];
  	double errorRate[256];
  	double maxErrorRate[256];
  
  	int16_t nonceCheckValid;
  
  	int16_t numberOfFpgas;
  	int selectedFpga;
  	bool parallelConfigSupport;
  	
  	char repr[20];
  };
  
  struct libztex_dev_list { 
  	struct libztex_device *dev;
  	struct libztex_dev_list *next;
  };
  
  struct libztex_hash_data {
  	uint32_t goldenNonce[2];
  	uint32_t nonce;
  	uint32_t hash7;
  };
  
  extern int libztex_scanDevices (struct libztex_dev_list ***devs);
  extern void libztex_freeDevList (struct libztex_dev_list **devs);
  extern int libztex_prepare_device (struct libusb_device *dev, struct libztex_device** ztex);
  extern void libztex_destroy_device (struct libztex_device* ztex);
  extern int libztex_configureFpga (struct libztex_device *dev);
  extern int libztex_setFreq (struct libztex_device *ztex, uint16_t freq);
  extern int libztex_sendHashData (struct libztex_device *ztex, unsigned char *sendbuf);
  extern int libztex_readHashData (struct libztex_device *ztex, struct libztex_hash_data nonces[]);
  extern int libztex_resetFpga (struct libztex_device *ztex);
  extern int libztex_selectFpga(struct libztex_device *ztex);
  extern int libztex_numberOfFpgas(struct libztex_device *ztex);
  
  #endif /* __LIBZTEX_H__ */
  

Download