6 * Copyright (C) Altera Corporation 1998-2001
7 * Copyright (C) 2010 NetUP Inc.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 /* Function Prototypes */
30 enum altera_jtag_state {
31 ILLEGAL_JTAG_STATE = -1,
52 /* Global variable to store the current JTAG state */
53 enum altera_jtag_state jtag_state;
55 /* Store current stop-state for DR and IR scan commands */
56 enum altera_jtag_state drstop_state;
57 enum altera_jtag_state irstop_state;
59 /* Store current padding values */
74 #define ALTERA_STACK_SIZE 128
75 #define ALTERA_MESSAGE_LENGTH 1024
78 struct altera_config *config;
79 struct altera_jtag js;
80 char msg_buff[ALTERA_MESSAGE_LENGTH + 1];
81 long stack[ALTERA_STACK_SIZE];
84 int altera_jinit(struct altera_state *astate);
85 int altera_set_drstop(struct altera_jtag *js, enum altera_jtag_state state);
86 int altera_set_irstop(struct altera_jtag *js, enum altera_jtag_state state);
87 int altera_set_dr_pre(struct altera_jtag *js, u32 count, u32 start_index,
89 int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index,
91 int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index,
93 int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index,
95 int altera_goto_jstate(struct altera_state *astate,
96 enum altera_jtag_state state);
97 int altera_wait_cycles(struct altera_state *astate, s32 cycles,
98 enum altera_jtag_state wait_state);
99 int altera_wait_msecs(struct altera_state *astate, s32 microseconds,
100 enum altera_jtag_state wait_state);
101 int altera_irscan(struct altera_state *astate, u32 count,
102 u8 *tdi_data, u32 start_index);
103 int altera_swap_ir(struct altera_state *astate,
104 u32 count, u8 *in_data,
105 u32 in_index, u8 *out_data,
107 int altera_drscan(struct altera_state *astate, u32 count,
108 u8 *tdi_data, u32 start_index);
109 int altera_swap_dr(struct altera_state *astate, u32 count,
110 u8 *in_data, u32 in_index,
111 u8 *out_data, u32 out_index);
112 void altera_free_buffers(struct altera_state *astate);
113 #endif /* ALTERA_JTAG_H */