projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| fa766c9b IL |
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 */ |