jtag.h (1052B)
1 /* Copyright 2014 Brian Swetland <swetland@frotz.net> 2 * 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef _JTAG_H_ 17 #define _JTAG_H_ 18 19 #include <stdint.h> 20 21 typedef uint64_t u64; 22 typedef uint32_t u32; 23 typedef uint8_t u8; 24 25 typedef struct jtag_handle JTAG; 26 27 JTAG *jtag_open(void); 28 void jtag_close(JTAG *jtag); 29 30 int jtag_enumerate(JTAG *jtag); 31 u32 jtag_get_nth_idcode(JTAG *jtag, u32 n); 32 int jtag_select(JTAG *jtag, u32 idcode); 33 34 int jtag_ir_wr(JTAG *jtag, u32 ir); 35 int jtag_dr_io(JTAG *jtag, u32 bitcount, u64 wdata, u64 *rdata); 36 37 #endif