+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007-2009 Øyvind Harboe *
+ * Copyright (C) 2007-2010 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2009 SoftPLC Corporation *
* *
* 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 <jtag/minidriver.h>
#include <helper/command.h>
-struct jtag_callback_entry
-{
+struct jtag_callback_entry {
struct jtag_callback_entry *next;
jtag_callback_t callback;
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 struct jtag_callback_entry *jtag_callback_queue_head;
+static struct jtag_callback_entry *jtag_callback_queue_tail;
static void jtag_callback_queue_reset(void)
{
jtag_callback_queue_tail = NULL;
}
-/**
- * Copy a struct scan_field for insertion into the queue.
- *
- * This allocates a new copy of out_value using cmd_queue_alloc.
- */
-static void cmd_queue_scan_field_clone(struct scan_field * dst, const struct scan_field * src)
-{
- dst->tap = src->tap;
- dst->num_bits = src->num_bits;
- dst->out_value = buf_cpy(src->out_value, cmd_queue_alloc(DIV_ROUND_UP(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 struct scan_field *in_fields, tap_state_t state)
+int interface_jtag_add_ir_scan(struct jtag_tap *active,
+ const struct scan_field *in_fields, tap_state_t state)
{
size_t num_taps = jtag_tap_count_enabled();
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- struct scan_command * scan = cmd_queue_alloc(sizeof(struct scan_command));
- struct scan_field * out_fields = cmd_queue_alloc(num_taps * sizeof(struct scan_field));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct scan_command *scan = cmd_queue_alloc(sizeof(struct scan_command));
+ struct scan_field *out_fields = cmd_queue_alloc(num_taps * sizeof(struct scan_field));
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;
+ 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;
- struct scan_field * field = out_fields; /* keep track where we insert data */
+ struct scan_field *field = out_fields; /* keep track where we insert data */
/* loop over all enabled TAPs */
- for (struct jtag_tap * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
- {
+ for (struct jtag_tap *tap = jtag_tap_next_enabled(NULL); tap; 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 == active) {
/* 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)
- {
+ jtag_scan_field_clone(field, in_fields);
+ } else {
/* 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(DIV_ROUND_UP(tap->ir_length, 8)), tap->ir_length);
- field->in_value = NULL; /* do not collect input for tap's in bypass */
+ field->num_bits = tap->ir_length;
+ field->out_value = buf_set_ones(cmd_queue_alloc(DIV_ROUND_UP(tap->ir_length, 8)), tap->ir_length);
+ field->in_value = NULL; /* do not collect input for tap's in bypass */
}
/* update device information */
field++;
}
-
- assert(field == out_fields + num_taps); /* paranoia: jtag_tap_count_enabled() and jtag_tap_next_enabled() not in sync */
+ /* paranoia: jtag_tap_count_enabled() and jtag_tap_next_enabled() not in sync */
+ assert(field == out_fields + num_taps);
return ERROR_OK;
}
-/**
- * see jtag_add_plain_ir_scan()
- *
- */
-int interface_jtag_add_plain_ir_scan(int in_num_fields, const struct scan_field *in_fields, tap_state_t state)
-{
-
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- struct scan_command * scan = cmd_queue_alloc(sizeof(struct scan_command));
- struct scan_field * out_fields = cmd_queue_alloc(in_num_fields * sizeof(struct scan_field));
-
- 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 struct scan_field *in_fields, tap_state_t state)
+int interface_jtag_add_dr_scan(struct jtag_tap *active, int in_num_fields,
+ const struct scan_field *in_fields, tap_state_t state)
{
/* count devices in bypass */
size_t bypass_devices = 0;
- for (struct jtag_tap * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
- {
+ for (struct jtag_tap *tap = jtag_tap_next_enabled(NULL); tap; tap = jtag_tap_next_enabled(tap)) {
if (tap->bypass)
bypass_devices++;
}
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- struct scan_command * scan = cmd_queue_alloc(sizeof(struct scan_command));
- struct scan_field * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(struct scan_field));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct scan_command *scan = cmd_queue_alloc(sizeof(struct scan_command));
+ struct scan_field *out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(struct scan_field));
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;
+ 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;
- struct scan_field * field = out_fields; /* keep track where we insert data */
+ struct scan_field *field = out_fields; /* keep track where we insert data */
/* loop over all enabled TAPs */
- for (struct jtag_tap * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
- {
+ for (struct jtag_tap *tap = jtag_tap_next_enabled(NULL); tap; tap = jtag_tap_next_enabled(tap)) {
/* if TAP is not bypassed insert matching input fields */
- if (!tap->bypass)
- {
- struct scan_field * start_field = field; /* keep initial position for assert() */
+ if (!tap->bypass) {
+ assert(active == tap);
+#ifndef NDEBUG
+ /* remember initial position for assert() */
+ struct scan_field *start_field = field;
+#endif /* NDEBUG */
- 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);
+ for (int j = 0; j < in_num_fields; j++) {
+ jtag_scan_field_clone(field, in_fields + j);
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;
+ else {
+ field->num_bits = 1;
+ field->out_value = NULL;
+ field->in_value = NULL;
field++;
}
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(struct jtag_tap *target_tap,
- int in_num_fields,
- const int *num_bits,
- const uint32_t *value,
- tap_state_t end_state)
+static int jtag_add_plain_scan(int num_bits, const uint8_t *out_bits,
+ uint8_t *in_bits, tap_state_t state, bool ir_scan)
{
- /* count devices in bypass */
-
- size_t bypass_devices = 0;
-
- for (struct jtag_tap * tap = jtag_tap_next_enabled(NULL); tap != NULL; tap = jtag_tap_next_enabled(tap))
- {
- if (tap->bypass)
- bypass_devices++;
- }
-
-
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- struct scan_command * scan = cmd_queue_alloc(sizeof(struct scan_command));
- struct scan_field * out_fields = cmd_queue_alloc((in_num_fields + bypass_devices) * sizeof(struct scan_field));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct scan_command *scan = cmd_queue_alloc(sizeof(struct scan_command));
+ struct scan_field *out_fields = cmd_queue_alloc(sizeof(struct scan_field));
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;
-
- struct scan_field * field = out_fields; /* keep track where we insert data */
-
- /* loop over all enabled TAPs */
-
- for (struct jtag_tap * 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;
+ cmd->type = JTAG_SCAN;
+ cmd->cmd.scan = scan;
- for (int j = 0; j < in_num_fields; j++)
- {
- uint8_t out_value[4];
- size_t scan_size = num_bits[j];
- buf_set_u32(out_value, 0, scan_size, value[j]);
+ scan->ir_scan = ir_scan;
+ scan->num_fields = 1;
+ scan->fields = out_fields;
+ scan->end_state = state;
- field->tap = tap;
- field->num_bits = scan_size;
- field->out_value = buf_cpy(out_value, cmd_queue_alloc(DIV_ROUND_UP(scan_size, 8)), scan_size);
- field->in_value = NULL;
+ out_fields->num_bits = num_bits;
+ out_fields->out_value = buf_cpy(out_bits, cmd_queue_alloc(DIV_ROUND_UP(num_bits, 8)), num_bits);
+ out_fields->in_value = in_bits;
- 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;
+ return ERROR_OK;
+}
- field++;
- }
- }
+int interface_jtag_add_plain_dr_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state)
+{
+ return jtag_add_plain_scan(num_bits, out_bits, in_bits, state, false);
+}
- assert(target_tap_match); /* target_tap should be enabled and not bypassed */
+int interface_jtag_add_plain_ir_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state)
+{
+ return jtag_add_plain_scan(num_bits, out_bits, in_bits, state, true);
}
-/**
- * see jtag_add_plain_dr_scan()
- *
- */
-int interface_jtag_add_plain_dr_scan(int in_num_fields, const struct scan_field *in_fields, tap_state_t state)
+int interface_jtag_add_tlr(void)
{
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- struct scan_command * scan = cmd_queue_alloc(sizeof(struct scan_command));
- struct scan_field * out_fields = cmd_queue_alloc(in_num_fields * sizeof(struct scan_field));
+ tap_state_t state = TAP_RESET;
- jtag_queue_command(cmd);
+ /* allocate memory for a new list member */
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
- cmd->type = JTAG_SCAN;
- cmd->cmd.scan = scan;
+ jtag_queue_command(cmd);
- scan->ir_scan = false;
- scan->num_fields = in_num_fields;
- scan->fields = out_fields;
- scan->end_state = state;
+ cmd->type = JTAG_TLR_RESET;
- for (int i = 0; i < in_num_fields; i++)
- cmd_queue_scan_field_clone(out_fields + i, in_fields + i);
+ cmd->cmd.statemove = cmd_queue_alloc(sizeof(struct statemove_command));
+ cmd->cmd.statemove->end_state = state;
return ERROR_OK;
}
-int interface_jtag_add_tlr(void)
+int interface_add_tms_seq(unsigned num_bits, const uint8_t *seq, enum tap_state state)
{
- tap_state_t state = TAP_RESET;
+ struct jtag_command *cmd;
- /* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ if (!cmd)
+ return ERROR_FAIL;
- jtag_queue_command(cmd);
+ cmd->type = JTAG_TMS;
+ cmd->cmd.tms = cmd_queue_alloc(sizeof(*cmd->cmd.tms));
+ if (!cmd->cmd.tms)
+ return ERROR_FAIL;
- cmd->type = JTAG_STATEMOVE;
+ /* copy the bits; our caller doesn't guarantee they'll persist */
+ cmd->cmd.tms->num_bits = num_bits;
+ cmd->cmd.tms->bits = buf_cpy(seq,
+ cmd_queue_alloc(DIV_ROUND_UP(num_bits, 8)), num_bits);
+ if (!cmd->cmd.tms->bits)
+ return ERROR_FAIL;
- cmd->cmd.statemove = cmd_queue_alloc(sizeof(struct statemove_command));
- cmd->cmd.statemove->end_state = state;
+ jtag_queue_command(cmd);
return ERROR_OK;
}
int interface_jtag_add_pathmove(int num_states, const tap_state_t *path)
{
/* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
jtag_queue_command(cmd);
int interface_jtag_add_runtest(int num_cycles, tap_state_t state)
{
/* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
jtag_queue_command(cmd);
int interface_jtag_add_clocks(int num_cycles)
{
/* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
jtag_queue_command(cmd);
int interface_jtag_add_reset(int req_trst, int req_srst)
{
/* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
jtag_queue_command(cmd);
int interface_jtag_add_sleep(uint32_t us)
{
/* allocate memory for a new list member */
- struct jtag_command * cmd = cmd_queue_alloc(sizeof(struct jtag_command));
+ struct jtag_command *cmd = cmd_queue_alloc(sizeof(struct jtag_command));
jtag_queue_command(cmd);
}
/* add callback to end of queue */
-void interface_jtag_add_callback4(jtag_callback_t callback, jtag_callback_data_t data0, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
+void interface_jtag_add_callback4(jtag_callback_t callback,
+ jtag_callback_data_t data0, 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->data2 = data2;
entry->data3 = data3;
- if (jtag_callback_queue_head == NULL)
- {
+ if (!jtag_callback_queue_head) {
jtag_callback_queue_head = entry;
jtag_callback_queue_tail = entry;
- } else
- {
+ } else {
jtag_callback_queue_tail->next = entry;
jtag_callback_queue_tail = entry;
}
int interface_jtag_execute_queue(void)
{
- static int reentry = 0;
+ static int reentry;
- assert(reentry==0);
+ assert(reentry == 0);
reentry++;
int retval = default_interface_jtag_execute_queue();
- if (retval == ERROR_OK)
- {
+ if (retval == ERROR_OK) {
struct jtag_callback_entry *entry;
- for (entry = jtag_callback_queue_head; entry != NULL; entry = entry->next)
- {
+ for (entry = jtag_callback_queue_head; entry; entry = entry->next) {
retval = entry->callback(entry->data0, entry->data1, entry->data2, entry->data3);
if (retval != ERROR_OK)
break;
return retval;
}
-static int jtag_convert_to_callback4(jtag_callback_data_t data0, jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
+static int jtag_convert_to_callback4(jtag_callback_data_t data0,
+ jtag_callback_data_t data1, jtag_callback_data_t data2, jtag_callback_data_t data3)
{
((jtag_callback1_t)data1)(data0);
return ERROR_OK;
jtag_add_callback4(jtag_convert_to_callback4, data0, (jtag_callback_data_t)callback, 0, 0);
}
-
-/* A minidriver can use use an inline versions of this API level fn */
-void jtag_add_dr_out(struct jtag_tap* tap,
- int num_fields, const int* num_bits, const uint32_t* value,
- tap_state_t end_state)
-{
- assert(end_state != TAP_RESET);
- assert(end_state != TAP_INVALID);
-
- cmd_queue_cur_state = end_state;
-
- interface_jtag_add_dr_out(tap,
- num_fields, num_bits, value,
- end_state);
-}
-
void jtag_add_callback(jtag_callback1_t f, jtag_callback_data_t data0)
{
interface_jtag_add_callback(f, data0);
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