diff options
author | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-25 14:50:31 +0000 |
---|---|---|
committer | oharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60> | 2008-02-25 14:50:31 +0000 |
commit | 81184adfb0bf71e25674f827ef92a48092b88d6b (patch) | |
tree | c7d7b39e499548c2e05c95aaad9620cc2cb42730 /src/jtag/jtag.h | |
parent | 3b5690ade1b013136ed9b54337c2d5b2c695aa25 (diff) |
Fix from Pavel Chromy.
https://lists.berlios.de/pipermail/openocd-development/2008-February/001018.html
git-svn-id: svn://svn.berlios.de/openocd/trunk@343 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/jtag/jtag.h')
-rw-r--r-- | src/jtag/jtag.h | 645 |
1 files changed, 322 insertions, 323 deletions
diff --git a/src/jtag/jtag.h b/src/jtag/jtag.h index 0e48a020..95a86e65 100644 --- a/src/jtag/jtag.h +++ b/src/jtag/jtag.h @@ -1,327 +1,326 @@ -/***************************************************************************
- * Copyright (C) 2005 by Dominic Rath *
- * Dominic.Rath@gmx.de *
- * *
- * This program is free software; you can redistribute it and/or modify *
- * it under the terms of the GNU General Public License as published by *
- * the Free Software Foundation; either version 2 of the License, or *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
- ***************************************************************************/
-#ifndef JTAG_H
-#define JTAG_H
-
-#include "types.h"
-#include "binarybuffer.h"
-
-#include "command.h"
-
-#if 0
-#define _DEBUG_JTAG_IO_
-#endif
-
-/* Tap States
- * TLR - Test-Logic-Reset, RTI - Run-Test/Idle,
- * SDS - Select-DR-Scan, CD - Capture-DR, SD - Shift-DR, E1D - Exit1-DR,
- * PD - Pause-DR, E2D - Exit2-DR, UD - Update-DR,
- * SIS - Select-IR-Scan, CI - Capture-IR, SI - Shift-IR, E1I - Exit1-IR,
- * PI - Pause-IR, E2I - Exit2-IR, UI - Update-IR
- */
-enum tap_state
-{
- TAP_TLR = 0x0, TAP_RTI = 0x8,
- TAP_SDS = 0x1, TAP_CD = 0x2, TAP_SD = 0x3, TAP_E1D = 0x4,
- TAP_PD = 0x5, TAP_E2D = 0x6, TAP_UD = 0x7,
- TAP_SIS = 0x9, TAP_CI = 0xa, TAP_SI = 0xb, TAP_E1I = 0xc,
- TAP_PI = 0xd, TAP_E2I = 0xe, TAP_UI = 0xf
-};
-
-typedef struct tap_transition_s
-{
- enum tap_state high;
- enum tap_state low;
-} tap_transition_t;
-
-extern char* tap_state_strings[16];
-extern int tap_move_map[16]; /* map 16 TAP states to 6 stable states */
-extern u8 tap_move[6][6]; /* value scanned to TMS to move from one of six stable states to another */
-extern tap_transition_t tap_transitions[16]; /* describe the TAP state diagram */
-
-extern enum tap_state end_state; /* finish DR scans in dr_end_state */
-extern enum tap_state cur_state; /* current TAP state */
-
-extern enum tap_state cmd_queue_end_state; /* finish DR scans in dr_end_state */
-extern enum tap_state cmd_queue_cur_state; /* current TAP state */
-
-#define TAP_MOVE(from, to) tap_move[tap_move_map[from]][tap_move_map[to]]
-
-typedef void * error_handler_t; /* Later on we can delete error_handler_t, but keep it for now to make patches more readable */
-
-struct scan_field_s;
-typedef int (*in_handler_t)(u8 *in_value, void *priv, struct scan_field_s *field);
-
-typedef struct scan_field_s
-{
- int device; /* ordinal device number this instruction refers to */
- int num_bits; /* number of bits this field specifies (up to 32) */
- u8 *out_value; /* value to be scanned into the device */
- u8 *out_mask; /* only masked bits care */
- u8 *in_value; /* pointer to a 32-bit memory location to take data scanned out */
- /* in_check_value/mask, in_handler_error_handler, in_handler_priv can be used by the in handler, otherwise they contain garbage */
- u8 *in_check_value; /* used to validate scan results */
- u8 *in_check_mask; /* check specified bits against check_value */
- in_handler_t in_handler; /* process received buffer using this handler */
- void *in_handler_priv; /* additional information for the in_handler */
-} scan_field_t;
-
-enum scan_type
-{
- /* IN: from device to host, OUT: from host to device */
- SCAN_IN = 1, SCAN_OUT = 2, SCAN_IO = 3
-};
-
-typedef struct scan_command_s
-{
- int ir_scan; /* instruction/not data scan */
- int num_fields; /* number of fields in *fields array */
- scan_field_t *fields; /* pointer to an array of data scan fields */
- enum tap_state end_state; /* TAP state in which JTAG commands should finish */
-} scan_command_t;
-
-typedef struct statemove_command_s
-{
- enum tap_state end_state; /* TAP state in which JTAG commands should finish */
-} statemove_command_t;
-
-typedef struct pathmove_command_s
-{
- int num_states; /* number of states in *path */
- enum tap_state *path; /* states that have to be passed */
-} pathmove_command_t;
-
-typedef struct runtest_command_s
-{
- int num_cycles; /* number of cycles that should be spent in Run-Test/Idle */
- enum tap_state end_state; /* TAP state in which JTAG commands should finish */
-} runtest_command_t;
-
-typedef struct reset_command_s
-{
- int trst; /* trst/srst 0: deassert, 1: assert, -1: don't change */
- int srst;
-} reset_command_t;
-
-typedef struct end_state_command_s
-{
- enum tap_state end_state; /* TAP state in which JTAG commands should finish */
-} end_state_command_t;
-
-typedef struct sleep_command_s
-{
- u32 us; /* number of microseconds to sleep */
-} sleep_command_t;
-
-typedef union jtag_command_container_u
-{
- scan_command_t *scan;
- statemove_command_t *statemove;
- pathmove_command_t *pathmove;
- runtest_command_t *runtest;
- reset_command_t *reset;
- end_state_command_t *end_state;
- sleep_command_t *sleep;
-} jtag_command_container_t;
-
-enum jtag_command_type
-{
- JTAG_SCAN = 1,
- JTAG_STATEMOVE = 2, JTAG_RUNTEST = 3,
- JTAG_RESET = 4, JTAG_END_STATE = 5,
- JTAG_PATHMOVE = 6, JTAG_SLEEP = 7
-};
-
-typedef struct jtag_command_s
-{
- jtag_command_container_t cmd;
- enum jtag_command_type type;
- struct jtag_command_s *next;
-} jtag_command_t;
-
-extern jtag_command_t *jtag_command_queue;
-
-typedef struct jtag_device_s
-{
- int ir_length; /* size of instruction register */
- u8 *expected; /* Capture-IR expected value */
- u8 *expected_mask; /* Capture-IR expected mask */
- u32 idcode; /* device identification code */
- u8 *cur_instr; /* current instruction */
- int bypass; /* bypass register selected */
- struct jtag_device_s *next;
-} jtag_device_t;
-
-extern jtag_device_t *jtag_devices;
-extern int jtag_num_devices;
-extern int jtag_ir_scan_size;
-
-enum reset_line_mode
-{
- LINE_OPEN_DRAIN = 0x0,
- LINE_PUSH_PULL = 0x1,
-};
-
-typedef struct jtag_interface_s
-{
- char* name;
-
- /* queued command execution
- */
- int (*execute_queue)(void);
-
- /* interface initalization
- */
- int (*speed)(int speed);
- int (*register_commands)(struct command_context_s *cmd_ctx);
- int (*init)(void);
- int (*quit)(void);
-
-} jtag_interface_t;
-
-enum jtag_event
-{
- JTAG_SRST_ASSERTED,
- JTAG_TRST_ASSERTED,
- JTAG_SRST_RELEASED,
- JTAG_TRST_RELEASED,
-};
-
-extern char* jtag_event_strings[];
-
-extern int jtag_trst;
-extern int jtag_srst;
-
-typedef struct jtag_event_callback_s
-{
- int (*callback)(enum jtag_event event, void *priv);
- void *priv;
- struct jtag_event_callback_s *next;
-} jtag_event_callback_t;
-
-extern jtag_event_callback_t *jtag_event_callbacks;
-
-extern jtag_interface_t *jtag; /* global pointer to configured JTAG interface */
-extern enum tap_state end_state;
-extern enum tap_state cur_state;
-
-extern char* jtag_interface;
-extern int jtag_speed;
-
-enum reset_types
-{
- RESET_NONE = 0x0,
- RESET_HAS_TRST = 0x1,
- RESET_HAS_SRST = 0x2,
- RESET_TRST_AND_SRST = 0x3,
- RESET_SRST_PULLS_TRST = 0x4,
- RESET_TRST_PULLS_SRST = 0x8,
- RESET_TRST_OPEN_DRAIN = 0x10,
- RESET_SRST_PUSH_PULL = 0x20,
-};
-
-extern enum reset_types jtag_reset_config;
-
-/* JTAG subsystem */
-extern int jtag_init(struct command_context_s *cmd_ctx);
-extern int jtag_register_commands(struct command_context_s *cmd_ctx);
-
-/* JTAG interface, can be implemented with a software or hardware fifo */
+/*************************************************************************** + * Copyright (C) 2005 by Dominic Rath * + * Dominic.Rath@gmx.de * + * * + * This program is free software; you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation; either version 2 of the License, or * + * (at your option) any later version. * + * * + * This program is distributed in the hope that it will be useful, * + * but WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * + * GNU General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this program; if not, write to the * + * Free Software Foundation, Inc., * + * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * + ***************************************************************************/ +#ifndef JTAG_H +#define JTAG_H + +#include "types.h" +#include "binarybuffer.h" + +#include "command.h" + +#if 0 +#define _DEBUG_JTAG_IO_ +#endif + +/* Tap States + * TLR - Test-Logic-Reset, RTI - Run-Test/Idle, + * SDS - Select-DR-Scan, CD - Capture-DR, SD - Shift-DR, E1D - Exit1-DR, + * PD - Pause-DR, E2D - Exit2-DR, UD - Update-DR, + * SIS - Select-IR-Scan, CI - Capture-IR, SI - Shift-IR, E1I - Exit1-IR, + * PI - Pause-IR, E2I - Exit2-IR, UI - Update-IR + */ +enum tap_state +{ + TAP_TLR = 0x0, TAP_RTI = 0x8, + TAP_SDS = 0x1, TAP_CD = 0x2, TAP_SD = 0x3, TAP_E1D = 0x4, + TAP_PD = 0x5, TAP_E2D = 0x6, TAP_UD = 0x7, + TAP_SIS = 0x9, TAP_CI = 0xa, TAP_SI = 0xb, TAP_E1I = 0xc, + TAP_PI = 0xd, TAP_E2I = 0xe, TAP_UI = 0xf +}; + +typedef struct tap_transition_s +{ + enum tap_state high; + enum tap_state low; +} tap_transition_t; + +extern char* tap_state_strings[16]; +extern int tap_move_map[16]; /* map 16 TAP states to 6 stable states */ +extern u8 tap_move[6][6]; /* value scanned to TMS to move from one of six stable states to another */ +extern tap_transition_t tap_transitions[16]; /* describe the TAP state diagram */ + +extern enum tap_state end_state; /* finish DR scans in dr_end_state */ +extern enum tap_state cur_state; /* current TAP state */ + +extern enum tap_state cmd_queue_end_state; /* finish DR scans in dr_end_state */ +extern enum tap_state cmd_queue_cur_state; /* current TAP state */ + +#define TAP_MOVE(from, to) tap_move[tap_move_map[from]][tap_move_map[to]] + +typedef void * error_handler_t; /* Later on we can delete error_handler_t, but keep it for now to make patches more readable */ + +struct scan_field_s; +typedef int (*in_handler_t)(u8 *in_value, void *priv, struct scan_field_s *field); + +typedef struct scan_field_s +{ + int device; /* ordinal device number this instruction refers to */ + int num_bits; /* number of bits this field specifies (up to 32) */ + u8 *out_value; /* value to be scanned into the device */ + u8 *out_mask; /* only masked bits care */ + u8 *in_value; /* pointer to a 32-bit memory location to take data scanned out */ + /* in_check_value/mask, in_handler_error_handler, in_handler_priv can be used by the in handler, otherwise they contain garbage */ + u8 *in_check_value; /* used to validate scan results */ + u8 *in_check_mask; /* check specified bits against check_value */ + in_handler_t in_handler; /* process received buffer using this handler */ + void *in_handler_priv; /* additional information for the in_handler */ +} scan_field_t; + +enum scan_type +{ + /* IN: from device to host, OUT: from host to device */ + SCAN_IN = 1, SCAN_OUT = 2, SCAN_IO = 3 +}; + +typedef struct scan_command_s +{ + int ir_scan; /* instruction/not data scan */ + int num_fields; /* number of fields in *fields array */ + scan_field_t *fields; /* pointer to an array of data scan fields */ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} scan_command_t; + +typedef struct statemove_command_s +{ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} statemove_command_t; + +typedef struct pathmove_command_s +{ + int num_states; /* number of states in *path */ + enum tap_state *path; /* states that have to be passed */ +} pathmove_command_t; + +typedef struct runtest_command_s +{ + int num_cycles; /* number of cycles that should be spent in Run-Test/Idle */ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} runtest_command_t; + +typedef struct reset_command_s +{ + int trst; /* trst/srst 0: deassert, 1: assert, -1: don't change */ + int srst; +} reset_command_t; + +typedef struct end_state_command_s +{ + enum tap_state end_state; /* TAP state in which JTAG commands should finish */ +} end_state_command_t; + +typedef struct sleep_command_s +{ + u32 us; /* number of microseconds to sleep */ +} sleep_command_t; + +typedef union jtag_command_container_u +{ + scan_command_t *scan; + statemove_command_t *statemove; + pathmove_command_t *pathmove; + runtest_command_t *runtest; + reset_command_t *reset; + end_state_command_t *end_state; + sleep_command_t *sleep; +} jtag_command_container_t; + +enum jtag_command_type +{ + JTAG_SCAN = 1, + JTAG_STATEMOVE = 2, JTAG_RUNTEST = 3, + JTAG_RESET = 4, JTAG_END_STATE = 5, + JTAG_PATHMOVE = 6, JTAG_SLEEP = 7 +}; + +typedef struct jtag_command_s +{ + jtag_command_container_t cmd; + enum jtag_command_type type; + struct jtag_command_s *next; +} jtag_command_t; + +extern jtag_command_t *jtag_command_queue; + +typedef struct jtag_device_s +{ + int ir_length; /* size of instruction register */ + u8 *expected; /* Capture-IR expected value */ + u8 *expected_mask; /* Capture-IR expected mask */ + u32 idcode; /* device identification code */ + u8 *cur_instr; /* current instruction */ + int bypass; /* bypass register selected */ + struct jtag_device_s *next; +} jtag_device_t; + +extern jtag_device_t *jtag_devices; +extern int jtag_num_devices; +extern int jtag_ir_scan_size; + +enum reset_line_mode +{ + LINE_OPEN_DRAIN = 0x0, + LINE_PUSH_PULL = 0x1, +}; + +typedef struct jtag_interface_s +{ + char* name; + + /* queued command execution + */ + int (*execute_queue)(void); + + /* interface initalization + */ + int (*speed)(int speed); + int (*register_commands)(struct command_context_s *cmd_ctx); + int (*init)(void); + int (*quit)(void); + +} jtag_interface_t; + +enum jtag_event +{ + JTAG_SRST_ASSERTED, + JTAG_TRST_ASSERTED, + JTAG_SRST_RELEASED, + JTAG_TRST_RELEASED, +}; + +extern char* jtag_event_strings[]; + +extern int jtag_trst; +extern int jtag_srst; + +typedef struct jtag_event_callback_s +{ + int (*callback)(enum jtag_event event, void *priv); + void *priv; + struct jtag_event_callback_s *next; +} jtag_event_callback_t; + +extern jtag_event_callback_t *jtag_event_callbacks; + +extern jtag_interface_t *jtag; /* global pointer to configured JTAG interface */ +extern enum tap_state end_state; +extern enum tap_state cur_state; + +extern int jtag_speed; + +enum reset_types +{ + RESET_NONE = 0x0, + RESET_HAS_TRST = 0x1, + RESET_HAS_SRST = 0x2, + RESET_TRST_AND_SRST = 0x3, + RESET_SRST_PULLS_TRST = 0x4, + RESET_TRST_PULLS_SRST = 0x8, + RESET_TRST_OPEN_DRAIN = 0x10, + RESET_SRST_PUSH_PULL = 0x20, +}; + +extern enum reset_types jtag_reset_config; + +/* JTAG subsystem */ +extern int jtag_init(struct command_context_s *cmd_ctx); +extern int jtag_register_commands(struct command_context_s *cmd_ctx); + +/* JTAG interface, can be implemented with a software or hardware fifo */ extern int jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); extern int jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state endstate); -/* execute a state transition within the JTAG standard, but the exact path
- * path that is taken is undefined. Many implementations use precisely
- * 7 clocks to perform a transition, but it could be more or less
- * than that.
- *
- * The following assertions are made about certain common state moves:
- *
- * - A state move from Pause-[ID]R to Pause-[ID]R should always go through
- * Update-[ID]R and Capture-[ID]R before returning to Pause-[ID]R, otherwise
- * there's no way force a register update, if you can't go to Run-Test/Idle for
- * some reason.
- *
- * - A state move from Pause-[ID]R to Shift-[ID]R must not go through
- * Update-[ID]R.
- *
- * - Run-Test/Idle must not be entered unless requested, because R-T/I may have
- * side effects.
- */
-extern int jtag_add_statemove(enum tap_state endstate);
-/* A list of unambigious single clock state transitions, not
- * all drivers can support this, but it is required for e.g.
- * XScale and Xilinx support
- */
-extern int jtag_add_pathmove(int num_states, enum tap_state *path);
-/* cycle precisely num_cycles in the TAP_RTI state */
-extern int jtag_add_runtest(int num_cycles, enum tap_state endstate);
-extern int jtag_add_reset(int trst, int srst);
-extern int jtag_add_end_state(enum tap_state endstate);
-extern int jtag_add_sleep(u32 us);
-/*
- * For software FIFO implementations, the queued commands can be executed
- * during this call or earlier. A sw queue might decide to push out
- * some of the jtag_add_xxx() operations once the queue is "big enough".
- *
- * This fn will return an error code if any of the prior jtag_add_xxx()
- * calls caused a failure, e.g. check failure. Note that it does not
- * matter if the operation was executed *before* jtag_execute_queue(),
- * jtag_execute_queue() will still return an error code.
- *
- * All jtag_add_xxx() calls that have in_handler!=NULL will have been
- * executed when this fn returns, but if what has been queued only
- * clocks data out, without reading anything back, then JTAG could
- * be running *after* jtag_execute_queue() returns. The API does
- * not define a way to flush a hw FIFO that runs *after*
- * jtag_execute_queue() returns.
- *
- * jtag_add_xxx() commands can either be executed immediately or
- * at some time between the jtag_add_xxx() fn call and jtag_execute_queue().
- */
-extern int jtag_execute_queue(void);
-
-/* JTAG support functions */
-extern void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler);
-extern enum scan_type jtag_scan_type(scan_command_t *cmd);
-extern int jtag_scan_size(scan_command_t *cmd);
-extern int jtag_read_buffer(u8 *buffer, scan_command_t *cmd);
-extern int jtag_build_buffer(scan_command_t *cmd, u8 **buffer);
-extern jtag_device_t* jtag_get_device(int num);
-extern void jtag_sleep(u32 us);
-extern int jtag_call_event_callbacks(enum jtag_event event);
-extern int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv);
-
-extern int jtag_verify_capture_ir;
-
-
-/* error codes
- * JTAG subsystem uses codes between -100 and -199 */
-
-#define ERROR_JTAG_INIT_FAILED (-100)
-#define ERROR_JTAG_INVALID_INTERFACE (-101)
-#define ERROR_JTAG_NOT_IMPLEMENTED (-102)
-#define ERROR_JTAG_TRST_ASSERTED (-103)
-#define ERROR_JTAG_QUEUE_FAILED (-104)
-#define ERROR_JTAG_RESET_WOULD_ASSERT_TRST (-105)
-#define ERROR_JTAG_RESET_CANT_SRST (-106)
-#define ERROR_JTAG_DEVICE_ERROR (-107)
-#endif /* JTAG_H */
+/* execute a state transition within the JTAG standard, but the exact path + * path that is taken is undefined. Many implementations use precisely + * 7 clocks to perform a transition, but it could be more or less + * than that. + * + * The following assertions are made about certain common state moves: + * + * - A state move from Pause-[ID]R to Pause-[ID]R should always go through + * Update-[ID]R and Capture-[ID]R before returning to Pause-[ID]R, otherwise + * there's no way force a register update, if you can't go to Run-Test/Idle for + * some reason. + * + * - A state move from Pause-[ID]R to Shift-[ID]R must not go through + * Update-[ID]R. + * + * - Run-Test/Idle must not be entered unless requested, because R-T/I may have + * side effects. + */ +extern int jtag_add_statemove(enum tap_state endstate); +/* A list of unambigious single clock state transitions, not + * all drivers can support this, but it is required for e.g. + * XScale and Xilinx support + */ +extern int jtag_add_pathmove(int num_states, enum tap_state *path); +/* cycle precisely num_cycles in the TAP_RTI state */ +extern int jtag_add_runtest(int num_cycles, enum tap_state endstate); +extern int jtag_add_reset(int trst, int srst); +extern int jtag_add_end_state(enum tap_state endstate); +extern int jtag_add_sleep(u32 us); +/* + * For software FIFO implementations, the queued commands can be executed + * during this call or earlier. A sw queue might decide to push out + * some of the jtag_add_xxx() operations once the queue is "big enough". + * + * This fn will return an error code if any of the prior jtag_add_xxx() + * calls caused a failure, e.g. check failure. Note that it does not + * matter if the operation was executed *before* jtag_execute_queue(), + * jtag_execute_queue() will still return an error code. + * + * All jtag_add_xxx() calls that have in_handler!=NULL will have been + * executed when this fn returns, but if what has been queued only + * clocks data out, without reading anything back, then JTAG could + * be running *after* jtag_execute_queue() returns. The API does + * not define a way to flush a hw FIFO that runs *after* + * jtag_execute_queue() returns. + * + * jtag_add_xxx() commands can either be executed immediately or + * at some time between the jtag_add_xxx() fn call and jtag_execute_queue(). + */ +extern int jtag_execute_queue(void); + +/* JTAG support functions */ +extern void jtag_set_check_value(scan_field_t *field, u8 *value, u8 *mask, error_handler_t *in_error_handler); +extern enum scan_type jtag_scan_type(scan_command_t *cmd); +extern int jtag_scan_size(scan_command_t *cmd); +extern int jtag_read_buffer(u8 *buffer, scan_command_t *cmd); +extern int jtag_build_buffer(scan_command_t *cmd, u8 **buffer); +extern jtag_device_t* jtag_get_device(int num); +extern void jtag_sleep(u32 us); +extern int jtag_call_event_callbacks(enum jtag_event event); +extern int jtag_register_event_callback(int (*callback)(enum jtag_event event, void *priv), void *priv); + +extern int jtag_verify_capture_ir; + + +/* error codes + * JTAG subsystem uses codes between -100 and -199 */ + +#define ERROR_JTAG_INIT_FAILED (-100) +#define ERROR_JTAG_INVALID_INTERFACE (-101) +#define ERROR_JTAG_NOT_IMPLEMENTED (-102) +#define ERROR_JTAG_TRST_ASSERTED (-103) +#define ERROR_JTAG_QUEUE_FAILED (-104) +#define ERROR_JTAG_RESET_WOULD_ASSERT_TRST (-105) +#define ERROR_JTAG_RESET_CANT_SRST (-106) +#define ERROR_JTAG_DEVICE_ERROR (-107) +#endif /* JTAG_H */ |