cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

altera-jtag.h (2727B)

      1/* SPDX-License-Identifier: GPL-2.0-or-later */
      2/*
      3 * altera-jtag.h
      4 *
      5 * altera FPGA driver
      6 *
      7 * Copyright (C) Altera Corporation 1998-2001
      8 * Copyright (C) 2010 NetUP Inc.
      9 * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru>
     10 */
     11
     12#ifndef ALTERA_JTAG_H
     13#define ALTERA_JTAG_H
     14
     15/* Function Prototypes */
     16enum altera_jtag_state {
     17	ILLEGAL_JTAG_STATE = -1,
     18	RESET = 0,
     19	IDLE = 1,
     20	DRSELECT = 2,
     21	DRCAPTURE = 3,
     22	DRSHIFT = 4,
     23	DREXIT1 = 5,
     24	DRPAUSE = 6,
     25	DREXIT2 = 7,
     26	DRUPDATE = 8,
     27	IRSELECT = 9,
     28	IRCAPTURE = 10,
     29	IRSHIFT = 11,
     30	IREXIT1 = 12,
     31	IRPAUSE = 13,
     32	IREXIT2 = 14,
     33	IRUPDATE = 15
     34
     35};
     36
     37struct altera_jtag {
     38	/* Global variable to store the current JTAG state */
     39	enum altera_jtag_state jtag_state;
     40
     41	/* Store current stop-state for DR and IR scan commands */
     42	enum altera_jtag_state drstop_state;
     43	enum altera_jtag_state irstop_state;
     44
     45	/* Store current padding values */
     46	u32 dr_pre;
     47	u32 dr_post;
     48	u32 ir_pre;
     49	u32 ir_post;
     50	u32 dr_length;
     51	u32 ir_length;
     52	u8 *dr_pre_data;
     53	u8 *dr_post_data;
     54	u8 *ir_pre_data;
     55	u8 *ir_post_data;
     56	u8 *dr_buffer;
     57	u8 *ir_buffer;
     58};
     59
     60#define ALTERA_STACK_SIZE 128
     61#define ALTERA_MESSAGE_LENGTH 1024
     62
     63struct altera_state {
     64	struct altera_config	*config;
     65	struct altera_jtag	js;
     66	char			msg_buff[ALTERA_MESSAGE_LENGTH + 1];
     67	long			stack[ALTERA_STACK_SIZE];
     68};
     69
     70int altera_jinit(struct altera_state *astate);
     71int altera_set_drstop(struct altera_jtag *js, enum altera_jtag_state state);
     72int altera_set_irstop(struct altera_jtag *js, enum altera_jtag_state state);
     73int altera_set_dr_pre(struct altera_jtag *js, u32 count, u32 start_index,
     74				u8 *preamble_data);
     75int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index,
     76				u8 *preamble_data);
     77int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index,
     78				u8 *postamble_data);
     79int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index,
     80				u8 *postamble_data);
     81int altera_goto_jstate(struct altera_state *astate,
     82				enum altera_jtag_state state);
     83int altera_wait_cycles(struct altera_state *astate, s32 cycles,
     84				enum altera_jtag_state wait_state);
     85int altera_wait_msecs(struct altera_state *astate, s32 microseconds,
     86				enum altera_jtag_state wait_state);
     87int altera_irscan(struct altera_state *astate, u32 count,
     88				u8 *tdi_data, u32 start_index);
     89int altera_swap_ir(struct altera_state *astate,
     90				u32 count, u8 *in_data,
     91				u32 in_index, u8 *out_data,
     92				u32 out_index);
     93int altera_drscan(struct altera_state *astate, u32 count,
     94				u8 *tdi_data, u32 start_index);
     95int altera_swap_dr(struct altera_state *astate, u32 count,
     96				u8 *in_data, u32 in_index,
     97				u8 *out_data, u32 out_index);
     98void altera_free_buffers(struct altera_state *astate);
     99#endif /* ALTERA_JTAG_H */