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[/] [an-fpga-implementation-of-low-latency-noc-based-mpsoc/] [trunk/] [mpsoc/] [src_c/] [jtag/] [jtag_libusb/] [jtag.h] - Rev 52
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/* Copyright 2012 Brian Swetland <swetland@frotz.net> * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef _JTAG_H_ #define _JTAG_H_ int jtag_open(unsigned vid, unsigned pid); int jtag_close(void); /* move into RESET state */ int jtag_reset(void); /* clock count times, TDI=0, TMS=bits[0], bits >>= 1 */ int jtag_move(int count, unsigned bits); /* clock count-1 times, TMS=0, TDI=bits[0], bits >>= 1 * clock 1 time, TMS=1, TDI=bits[0] * if out, capture TDO into out */ int jtag_shift(int count, unsigned bits, unsigned *out); /* load sz bits into IR */ int jtag_ir(unsigned sz, unsigned bits); /* load sz bits into DR, capture sz bits into out if non-null */ int jtag_dr(unsigned sz, unsigned bits, unsigned *out); int jtag_dr_long(unsigned sz, unsigned * bits, unsigned *out, int words); /* altera virtual jtag support */ int jtag_open_virtual_device(unsigned iid,unsigned vid, unsigned pid); int jtag_vir(unsigned vir); int jtag_vdr(unsigned sz, unsigned bits, unsigned *out); int jtag_vdr_long(unsigned , unsigned * , unsigned *, int ); #endif
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