Rename jtag_driver.c as driver.c to remove duplicate name component.
git-svn-id: svn://svn.berlios.de/openocd/trunk@2175 b42882b7-edfa-0310-969c-e2dbd0fdcd60
This commit is contained in:
zwelch
520
src/jtag/driver.c
Normal file
520
src/jtag/driver.c
Normal file
@@ -0,0 +1,520 @@
|
||||
/***************************************************************************
|
||||
* Copyright (C) 2005 by Dominic Rath *
|
||||
* Dominic.Rath@gmx.de *
|
||||
* *
|
||||
* Copyright (C) 2007,2008 Øyvind Harboe *
|
||||
* oyvind.harboe@zylin.com *
|
||||
* *
|
||||
* Copyright (C) 2009 SoftPLC Corporation *
|
||||
* http://softplc.com *
|
||||
* dick@softplc.com *
|
||||
* *
|
||||
* Copyright (C) 2009 Zachary T Welch *
|
||||
* zw@superlucidity.net *
|
||||
* *
|
||||
* 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. *
|
||||
***************************************************************************/
|
||||
#ifdef HAVE_CONFIG_H
|
||||
#include "config.h"
|
||||
#endif
|
||||
|
||||
#include "interface.h"
|
||||
#include "minidriver.h"
|
||||
#include "command.h"
|
||||
|
||||
struct jtag_callback_entry
|
||||
{
|
||||
struct jtag_callback_entry *next;
|
||||
|
||||
jtag_callback_t callback;
|
||||
u8 *in;
|
||||
jtag_callback_data_t data1;
|
||||
jtag_callback_data_t data2;
|
||||
jtag_callback_data_t data3;
|
||||
};
|
||||
|
||||
static struct jtag_callback_entry *jtag_callback_queue_head = NULL;
|
||||
static struct jtag_callback_entry *jtag_callback_queue_tail = NULL;
|
||||
|
||||
static void jtag_callback_queue_reset(void)
|
||||
{
|
||||
jtag_callback_queue_head = NULL;
|
||||
jtag_callback_queue_tail = NULL;
|
||||
}
|
||||
|
||||
/**
|
||||
* Copy a scan_field_t for insertion into the queue.
|
||||
*
|
||||
* This allocates a new copy of out_value using cmd_queue_alloc.
|
||||
*/
|
||||
static void cmd_queue_scan_field_clone(scan_field_t * dst, const scan_field_t * src)
|
||||
{
|
||||
dst->tap = src->tap;
|
||||
dst->num_bits = src->num_bits;
|
||||
dst->out_value = buf_cpy(src->out_value, cmd_queue_alloc(CEIL(src->num_bits, 8)), src->num_bits);
|
||||
dst->in_value = src->in_value;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* see jtag_add_ir_scan()
|
||||
*
|
||||
*/
|
||||
int interface_jtag_add_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
|
||||
{
|
||||
size_t num_taps = jtag_tap_count_enabled();
|
||||
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t));
|
||||
scan_field_t * out_fields = cmd_queue_alloc(num_taps * sizeof(scan_field_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SCAN;
|
||||
cmd->cmd.scan = scan;
|
||||
|
||||
scan->ir_scan = true;
|
||||
scan->num_fields = num_taps; /* one field per device */
|
||||
scan->fields = out_fields;
|
||||
scan->end_state = state;
|
||||
|
||||
|
||||
scan_field_t * field = out_fields; /* keep track where we insert data */
|
||||
|
||||
/* loop over all enabled TAPs */
|
||||
|
||||
for (jtag_tap_t * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
|
||||
{
|
||||
/* search the input field list for fields for the current TAP */
|
||||
|
||||
bool found = false;
|
||||
|
||||
for (int j = 0; j < in_num_fields; j++)
|
||||
{
|
||||
if (tap != in_fields[j].tap)
|
||||
continue;
|
||||
|
||||
/* if TAP is listed in input fields, copy the value */
|
||||
|
||||
found = true;
|
||||
|
||||
tap->bypass = 0;
|
||||
|
||||
assert(in_fields[j].num_bits == tap->ir_length); /* input fields must have the same length as the TAP's IR */
|
||||
|
||||
cmd_queue_scan_field_clone(field, in_fields + j);
|
||||
|
||||
break;
|
||||
}
|
||||
|
||||
if (!found)
|
||||
{
|
||||
/* if a TAP isn't listed in input fields, set it to BYPASS */
|
||||
|
||||
tap->bypass = 1;
|
||||
|
||||
field->tap = tap;
|
||||
field->num_bits = tap->ir_length;
|
||||
field->out_value = buf_set_ones(cmd_queue_alloc(CEIL(tap->ir_length, 8)), tap->ir_length);
|
||||
field->in_value = NULL; /* do not collect input for tap's in bypass */
|
||||
}
|
||||
|
||||
/* update device information */
|
||||
buf_cpy(field->out_value, tap->cur_instr, tap->ir_length);
|
||||
|
||||
field++;
|
||||
}
|
||||
|
||||
assert(field == out_fields + num_taps); /* paranoia: jtag_tap_count_enabled() and jtag_tap_next_enabled() not in sync */
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
/**
|
||||
* see jtag_add_plain_ir_scan()
|
||||
*
|
||||
*/
|
||||
int interface_jtag_add_plain_ir_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
|
||||
{
|
||||
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t));
|
||||
scan_field_t * out_fields = cmd_queue_alloc(in_num_fields * sizeof(scan_field_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SCAN;
|
||||
cmd->cmd.scan = scan;
|
||||
|
||||
scan->ir_scan = true;
|
||||
scan->num_fields = in_num_fields;
|
||||
scan->fields = out_fields;
|
||||
scan->end_state = state;
|
||||
|
||||
for (int i = 0; i < in_num_fields; i++)
|
||||
cmd_queue_scan_field_clone(out_fields + i, in_fields + i);
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* see jtag_add_dr_scan()
|
||||
*
|
||||
*/
|
||||
int interface_jtag_add_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
|
||||
{
|
||||
/* count devices in bypass */
|
||||
|
||||
size_t bypass_devices = 0;
|
||||
|
||||
for (jtag_tap_t * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
|
||||
{
|
||||
if (tap->bypass)
|
||||
bypass_devices++;
|
||||
}
|
||||
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t));
|
||||
scan_field_t * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(scan_field_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SCAN;
|
||||
cmd->cmd.scan = scan;
|
||||
|
||||
scan->ir_scan = false;
|
||||
scan->num_fields = in_num_fields + bypass_devices;
|
||||
scan->fields = out_fields;
|
||||
scan->end_state = state;
|
||||
|
||||
|
||||
scan_field_t * field = out_fields; /* keep track where we insert data */
|
||||
|
||||
/* loop over all enabled TAPs */
|
||||
|
||||
for (jtag_tap_t * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
|
||||
{
|
||||
/* if TAP is not bypassed insert matching input fields */
|
||||
|
||||
if (!tap->bypass)
|
||||
{
|
||||
scan_field_t * start_field = field; /* keep initial position for assert() */
|
||||
|
||||
for (int j = 0; j < in_num_fields; j++)
|
||||
{
|
||||
if (tap != in_fields[j].tap)
|
||||
continue;
|
||||
|
||||
cmd_queue_scan_field_clone(field, in_fields + j);
|
||||
|
||||
field++;
|
||||
}
|
||||
|
||||
assert(field > start_field); /* must have at least one input field per not bypassed TAP */
|
||||
}
|
||||
|
||||
/* if a TAP is bypassed, generated a dummy bit*/
|
||||
else
|
||||
{
|
||||
field->tap = tap;
|
||||
field->num_bits = 1;
|
||||
field->out_value = NULL;
|
||||
field->in_value = NULL;
|
||||
|
||||
field++;
|
||||
}
|
||||
}
|
||||
|
||||
assert(field == out_fields + scan->num_fields); /* no superfluous input fields permitted */
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* Generate a DR SCAN using the array of output values passed to the function
|
||||
*
|
||||
* This function assumes that the parameter target_tap specifies the one TAP
|
||||
* that is not bypassed. All other TAPs must be bypassed and the function will
|
||||
* generate a dummy 1bit field for them.
|
||||
*
|
||||
* For the target_tap a sequence of output-only fields will be generated where
|
||||
* each field has the size num_bits and the field's values are taken from
|
||||
* the array value.
|
||||
*
|
||||
* The bypass status of TAPs is set by jtag_add_ir_scan().
|
||||
*
|
||||
*/
|
||||
void interface_jtag_add_dr_out(jtag_tap_t *target_tap,
|
||||
int in_num_fields,
|
||||
const int *num_bits,
|
||||
const u32 *value,
|
||||
tap_state_t end_state)
|
||||
{
|
||||
/* count devices in bypass */
|
||||
|
||||
size_t bypass_devices = 0;
|
||||
|
||||
for (jtag_tap_t * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
|
||||
{
|
||||
if (tap->bypass)
|
||||
bypass_devices++;
|
||||
}
|
||||
|
||||
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t));
|
||||
scan_field_t * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(scan_field_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SCAN;
|
||||
cmd->cmd.scan = scan;
|
||||
|
||||
scan->ir_scan = false;
|
||||
scan->num_fields = in_num_fields + bypass_devices;
|
||||
scan->fields = out_fields;
|
||||
scan->end_state = end_state;
|
||||
|
||||
|
||||
bool target_tap_match = false;
|
||||
|
||||
scan_field_t * field = out_fields; /* keep track where we insert data */
|
||||
|
||||
/* loop over all enabled TAPs */
|
||||
|
||||
for (jtag_tap_t * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
|
||||
{
|
||||
/* if TAP is not bypassed insert matching input fields */
|
||||
|
||||
if (!tap->bypass)
|
||||
{
|
||||
assert(tap == target_tap); /* target_tap must match the one not bypassed TAP */
|
||||
|
||||
target_tap_match = true;
|
||||
|
||||
for (int j = 0; j < in_num_fields; j++)
|
||||
{
|
||||
u8 out_value[4];
|
||||
size_t scan_size = num_bits[j];
|
||||
buf_set_u32(out_value, 0, scan_size, value[j]);
|
||||
|
||||
field->tap = tap;
|
||||
field->num_bits = scan_size;
|
||||
field->out_value = buf_cpy(out_value, cmd_queue_alloc(CEIL(scan_size, 8)), scan_size);
|
||||
field->in_value = NULL;
|
||||
|
||||
field++;
|
||||
}
|
||||
}
|
||||
|
||||
/* if a TAP is bypassed, generated a dummy bit*/
|
||||
else
|
||||
{
|
||||
|
||||
field->tap = tap;
|
||||
field->num_bits = 1;
|
||||
field->out_value = NULL;
|
||||
field->in_value = NULL;
|
||||
|
||||
field++;
|
||||
}
|
||||
}
|
||||
|
||||
assert(target_tap_match); /* target_tap should be enabled and not bypassed */
|
||||
}
|
||||
|
||||
/**
|
||||
* see jtag_add_plain_dr_scan()
|
||||
*
|
||||
*/
|
||||
int interface_jtag_add_plain_dr_scan(int in_num_fields, const scan_field_t *in_fields, tap_state_t state)
|
||||
{
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
scan_command_t * scan = cmd_queue_alloc(sizeof(scan_command_t));
|
||||
scan_field_t * out_fields = cmd_queue_alloc(in_num_fields * sizeof(scan_field_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SCAN;
|
||||
cmd->cmd.scan = scan;
|
||||
|
||||
scan->ir_scan = false;
|
||||
scan->num_fields = in_num_fields;
|
||||
scan->fields = out_fields;
|
||||
scan->end_state = state;
|
||||
|
||||
for (int i = 0; i < in_num_fields; i++)
|
||||
cmd_queue_scan_field_clone(out_fields + i, in_fields + i);
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_tlr(void)
|
||||
{
|
||||
tap_state_t state = TAP_RESET;
|
||||
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_STATEMOVE;
|
||||
|
||||
cmd->cmd.statemove = cmd_queue_alloc(sizeof(statemove_command_t));
|
||||
cmd->cmd.statemove->end_state = state;
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_pathmove(int num_states, const tap_state_t *path)
|
||||
{
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_PATHMOVE;
|
||||
|
||||
cmd->cmd.pathmove = cmd_queue_alloc(sizeof(pathmove_command_t));
|
||||
cmd->cmd.pathmove->num_states = num_states;
|
||||
cmd->cmd.pathmove->path = cmd_queue_alloc(sizeof(tap_state_t) * num_states);
|
||||
|
||||
for (int i = 0; i < num_states; i++)
|
||||
cmd->cmd.pathmove->path[i] = path[i];
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_runtest(int num_cycles, tap_state_t state)
|
||||
{
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_RUNTEST;
|
||||
|
||||
cmd->cmd.runtest = cmd_queue_alloc(sizeof(runtest_command_t));
|
||||
cmd->cmd.runtest->num_cycles = num_cycles;
|
||||
cmd->cmd.runtest->end_state = state;
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_clocks( int num_cycles )
|
||||
{
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_STABLECLOCKS;
|
||||
|
||||
cmd->cmd.stableclocks = cmd_queue_alloc(sizeof(stableclocks_command_t));
|
||||
cmd->cmd.stableclocks->num_cycles = num_cycles;
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_reset(int req_trst, int req_srst)
|
||||
{
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_RESET;
|
||||
|
||||
cmd->cmd.reset = cmd_queue_alloc(sizeof(reset_command_t));
|
||||
cmd->cmd.reset->trst = req_trst;
|
||||
cmd->cmd.reset->srst = req_srst;
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
int interface_jtag_add_sleep(u32 us)
|
||||
{
|
||||
/* allocate memory for a new list member */
|
||||
jtag_command_t * cmd = cmd_queue_alloc(sizeof(jtag_command_t));
|
||||
|
||||
jtag_queue_command(cmd);
|
||||
|
||||
cmd->type = JTAG_SLEEP;
|
||||
|
||||
cmd->cmd.sleep = cmd_queue_alloc(sizeof(sleep_command_t));
|
||||
cmd->cmd.sleep->us = us;
|
||||
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
/* add callback to end of queue */
|
||||
void interface_jtag_add_callback4(jtag_callback_t callback, u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
|
||||
{
|
||||
struct jtag_callback_entry *entry=cmd_queue_alloc(sizeof(struct jtag_callback_entry));
|
||||
|
||||
entry->next=NULL;
|
||||
entry->callback=callback;
|
||||
entry->in=in;
|
||||
entry->data1=data1;
|
||||
entry->data2=data2;
|
||||
entry->data3=data3;
|
||||
|
||||
if (jtag_callback_queue_head==NULL)
|
||||
{
|
||||
jtag_callback_queue_head=entry;
|
||||
jtag_callback_queue_tail=entry;
|
||||
} else
|
||||
{
|
||||
jtag_callback_queue_tail->next=entry;
|
||||
jtag_callback_queue_tail=entry;
|
||||
}
|
||||
}
|
||||
|
||||
int interface_jtag_execute_queue(void)
|
||||
{
|
||||
int retval = default_interface_jtag_execute_queue();
|
||||
if (retval == ERROR_OK)
|
||||
{
|
||||
struct jtag_callback_entry *entry;
|
||||
for (entry=jtag_callback_queue_head; entry!=NULL; entry=entry->next)
|
||||
{
|
||||
retval=entry->callback(entry->in, entry->data1, entry->data2, entry->data3);
|
||||
if (retval!=ERROR_OK)
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
jtag_command_queue_reset();
|
||||
jtag_callback_queue_reset();
|
||||
|
||||
return retval;
|
||||
}
|
||||
|
||||
static int jtag_convert_to_callback4(u8 *in, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
|
||||
{
|
||||
((jtag_callback1_t)data1)(in);
|
||||
return ERROR_OK;
|
||||
}
|
||||
|
||||
void interface_jtag_add_callback(jtag_callback1_t callback, u8 *in)
|
||||
{
|
||||
jtag_add_callback4(jtag_convert_to_callback4, in, (jtag_callback_data_t)callback, 0, 0);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user