diff options
Diffstat (limited to 'drivers/staging/altera-stapl/altera-jtag.h')
-rw-r--r-- | drivers/staging/altera-stapl/altera-jtag.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/staging/altera-stapl/altera-jtag.h b/drivers/staging/altera-stapl/altera-jtag.h new file mode 100644 index 00000000000..2f97e36a2fb --- /dev/null +++ b/drivers/staging/altera-stapl/altera-jtag.h | |||
@@ -0,0 +1,113 @@ | |||
1 | /* | ||
2 | * altera-jtag.h | ||
3 | * | ||
4 | * altera FPGA driver | ||
5 | * | ||
6 | * Copyright (C) Altera Corporation 1998-2001 | ||
7 | * Copyright (C) 2010 NetUP Inc. | ||
8 | * Copyright (C) 2010 Igor M. Liplianin <liplianin@netup.ru> | ||
9 | * | ||
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. | ||
14 | * | ||
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 | ||
18 | * | ||
19 | * GNU General Public License for more details. | ||
20 | * | ||
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. | ||
24 | */ | ||
25 | |||
26 | #ifndef ALTERA_JTAG_H | ||
27 | #define ALTERA_JTAG_H | ||
28 | |||
29 | /* Function Prototypes */ | ||
30 | enum altera_jtag_state { | ||
31 | ILLEGAL_JTAG_STATE = -1, | ||
32 | RESET = 0, | ||
33 | IDLE = 1, | ||
34 | DRSELECT = 2, | ||
35 | DRCAPTURE = 3, | ||
36 | DRSHIFT = 4, | ||
37 | DREXIT1 = 5, | ||
38 | DRPAUSE = 6, | ||
39 | DREXIT2 = 7, | ||
40 | DRUPDATE = 8, | ||
41 | IRSELECT = 9, | ||
42 | IRCAPTURE = 10, | ||
43 | IRSHIFT = 11, | ||
44 | IREXIT1 = 12, | ||
45 | IRPAUSE = 13, | ||
46 | IREXIT2 = 14, | ||
47 | IRUPDATE = 15 | ||
48 | |||
49 | }; | ||
50 | |||
51 | struct altera_jtag { | ||
52 | /* Global variable to store the current JTAG state */ | ||
53 | enum altera_jtag_state jtag_state; | ||
54 | |||
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; | ||
58 | |||
59 | /* Store current padding values */ | ||
60 | u32 dr_pre; | ||
61 | u32 dr_post; | ||
62 | u32 ir_pre; | ||
63 | u32 ir_post; | ||
64 | u32 dr_length; | ||
65 | u32 ir_length; | ||
66 | u8 *dr_pre_data; | ||
67 | u8 *dr_post_data; | ||
68 | u8 *ir_pre_data; | ||
69 | u8 *ir_post_data; | ||
70 | u8 *dr_buffer; | ||
71 | u8 *ir_buffer; | ||
72 | }; | ||
73 | |||
74 | #define ALTERA_STACK_SIZE 128 | ||
75 | #define ALTERA_MESSAGE_LENGTH 1024 | ||
76 | |||
77 | struct altera_state { | ||
78 | struct altera_config *config; | ||
79 | struct altera_jtag js; | ||
80 | char msg_buff[ALTERA_MESSAGE_LENGTH + 1]; | ||
81 | long stack[ALTERA_STACK_SIZE]; | ||
82 | }; | ||
83 | |||
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, | ||
88 | u8 *preamble_data); | ||
89 | int altera_set_ir_pre(struct altera_jtag *js, u32 count, u32 start_index, | ||
90 | u8 *preamble_data); | ||
91 | int altera_set_dr_post(struct altera_jtag *js, u32 count, u32 start_index, | ||
92 | u8 *postamble_data); | ||
93 | int altera_set_ir_post(struct altera_jtag *js, u32 count, u32 start_index, | ||
94 | u8 *postamble_data); | ||
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, | ||
106 | u32 out_index); | ||
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 */ | ||