-/*****************************************************************************
- * Copyright (C) 2016 by Matthias Welwarsky <matthias.welwarsky@sysgo.com> *
- * *
- * 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. *
- ****************************************************************************/
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+/*
+ * Copyright (C) 2016 by Matthias Welwarsky <matthias.welwarsky@sysgo.com>
+ */
#ifdef HAVE_CONFIG_H
#include "config.h"
#include "target.h"
#include "target_type.h"
-#include "arm.h"
#include "arm_adi_v5.h"
+#include "register.h"
#include <jtag/jtag.h>
+#define MEM_AP_COMMON_MAGIC 0x4DE4DA50
+
struct mem_ap {
- struct arm arm;
+ int common_magic;
+ struct adiv5_dap *dap;
struct adiv5_ap *ap;
- int ap_num;
+ uint64_t ap_num;
};
static int mem_ap_target_create(struct target *target, Jim_Interp *interp)
struct adiv5_private_config *pc;
pc = (struct adiv5_private_config *)target->private_config;
- if (pc == NULL)
+ if (!pc)
return ERROR_FAIL;
if (pc->ap_num == DP_APSEL_INVALID) {
}
mem_ap = calloc(1, sizeof(struct mem_ap));
- if (mem_ap == NULL) {
+ if (!mem_ap) {
LOG_ERROR("Out of memory");
return ERROR_FAIL;
}
mem_ap->ap_num = pc->ap_num;
- mem_ap->arm.common_magic = ARM_COMMON_MAGIC;
- mem_ap->arm.dap = pc->dap;
+ mem_ap->common_magic = MEM_AP_COMMON_MAGIC;
+ mem_ap->dap = pc->dap;
target->arch_info = mem_ap;
+ if (!target->gdb_port_override)
+ target->gdb_port_override = strdup("disabled");
+
return ERROR_OK;
}
{
LOG_DEBUG("%s", __func__);
target->state = TARGET_UNKNOWN;
+ target->debug_reason = DBG_REASON_UNDEFINED;
return ERROR_OK;
}
static void mem_ap_deinit_target(struct target *target)
{
+ struct mem_ap *mem_ap = target->arch_info;
+
LOG_DEBUG("%s", __func__);
+ if (mem_ap->ap)
+ dap_put_ap(mem_ap->ap);
+
free(target->private_config);
free(target->arch_info);
return;
static int mem_ap_poll(struct target *target)
{
- if (target->state == TARGET_UNKNOWN)
+ if (target->state == TARGET_UNKNOWN) {
target->state = TARGET_RUNNING;
+ target->debug_reason = DBG_REASON_NOTHALTED;
+ }
return ERROR_OK;
}
{
LOG_DEBUG("%s", __func__);
target->state = TARGET_HALTED;
+ target->debug_reason = DBG_REASON_DBGRQ;
+ target_call_event_callbacks(target, TARGET_EVENT_HALTED);
return ERROR_OK;
}
{
LOG_DEBUG("%s", __func__);
target->state = TARGET_RUNNING;
+ target->debug_reason = DBG_REASON_NOTHALTED;
return ERROR_OK;
}
{
LOG_DEBUG("%s", __func__);
target->state = TARGET_HALTED;
+ target->debug_reason = DBG_REASON_DBGRQ;
+ target_call_event_callbacks(target, TARGET_EVENT_HALTED);
return ERROR_OK;
}
static int mem_ap_assert_reset(struct target *target)
{
target->state = TARGET_RESET;
+ target->debug_reason = DBG_REASON_UNDEFINED;
LOG_DEBUG("%s", __func__);
return ERROR_OK;
struct mem_ap *mem_ap = target->arch_info;
if (!target_was_examined(target)) {
- mem_ap->ap = dap_ap(mem_ap->arm.dap, mem_ap->ap_num);
+ if (mem_ap->ap) {
+ dap_put_ap(mem_ap->ap);
+ mem_ap->ap = NULL;
+ }
+
+ mem_ap->ap = dap_get_ap(mem_ap->dap, mem_ap->ap_num);
+ if (!mem_ap->ap) {
+ LOG_ERROR("Cannot get AP");
+ return ERROR_FAIL;
+ }
target_set_examined(target);
target->state = TARGET_UNKNOWN;
+ target->debug_reason = DBG_REASON_UNDEFINED;
return mem_ap_init(mem_ap->ap);
}
static int mem_ap_deassert_reset(struct target *target)
{
- if (target->reset_halt)
+ if (target->reset_halt) {
target->state = TARGET_HALTED;
- else
+ target->debug_reason = DBG_REASON_DBGRQ;
+ target_call_event_callbacks(target, TARGET_EVENT_HALTED);
+ } else {
target->state = TARGET_RUNNING;
+ target->debug_reason = DBG_REASON_NOTHALTED;
+ }
LOG_DEBUG("%s", __func__);
return ERROR_OK;
}
+static int mem_ap_reg_get(struct reg *reg)
+{
+ return ERROR_OK;
+}
+
+static int mem_ap_reg_set(struct reg *reg, uint8_t *buf)
+{
+ return ERROR_OK;
+}
+
+static struct reg_arch_type mem_ap_reg_arch_type = {
+ .get = mem_ap_reg_get,
+ .set = mem_ap_reg_set,
+};
+
+static const char *mem_ap_get_gdb_arch(struct target *target)
+{
+ return "arm";
+}
+
+/*
+ * Dummy ARM register emulation:
+ * reg[0..15]: 32 bits, r0~r12, sp, lr, pc
+ * reg[16..23]: 96 bits, f0~f7
+ * reg[24]: 32 bits, fps
+ * reg[25]: 32 bits, cpsr
+ *
+ * Set 'exist' only to reg[0..15], so initial response to GDB is correct
+ */
+#define NUM_REGS 26
+#define MAX_REG_SIZE 96
+#define REG_EXIST(n) ((n) < 16)
+#define REG_SIZE(n) ((((n) >= 16) && ((n) < 24)) ? 96 : 32)
+
+struct mem_ap_alloc_reg_list {
+ /* reg_list must be the first field */
+ struct reg *reg_list[NUM_REGS];
+ struct reg regs[NUM_REGS];
+ uint8_t regs_value[MAX_REG_SIZE / 8];
+};
+
+static int mem_ap_get_gdb_reg_list(struct target *target, struct reg **reg_list[],
+ int *reg_list_size, enum target_register_class reg_class)
+{
+ struct mem_ap_alloc_reg_list *mem_ap_alloc = calloc(1, sizeof(struct mem_ap_alloc_reg_list));
+ if (!mem_ap_alloc) {
+ LOG_ERROR("Out of memory");
+ return ERROR_FAIL;
+ }
+
+ *reg_list = mem_ap_alloc->reg_list;
+ *reg_list_size = NUM_REGS;
+ struct reg *regs = mem_ap_alloc->regs;
+
+ for (int i = 0; i < NUM_REGS; i++) {
+ regs[i].number = i;
+ regs[i].value = mem_ap_alloc->regs_value;
+ regs[i].size = REG_SIZE(i);
+ regs[i].exist = REG_EXIST(i);
+ regs[i].type = &mem_ap_reg_arch_type;
+ (*reg_list)[i] = ®s[i];
+ }
+
+ return ERROR_OK;
+}
+
static int mem_ap_read_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, uint8_t *buffer)
{
struct mem_ap *mem_ap = target->arch_info;
LOG_DEBUG("Reading memory at physical address " TARGET_ADDR_FMT
- "; size %" PRId32 "; count %" PRId32, address, size, count);
+ "; size %" PRIu32 "; count %" PRIu32, address, size, count);
- if (count == 0 || buffer == NULL)
+ if (count == 0 || !buffer)
return ERROR_COMMAND_SYNTAX_ERROR;
return mem_ap_read_buf(mem_ap->ap, buffer, size, count, address);
struct mem_ap *mem_ap = target->arch_info;
LOG_DEBUG("Writing memory at physical address " TARGET_ADDR_FMT
- "; size %" PRId32 "; count %" PRId32, address, size, count);
+ "; size %" PRIu32 "; count %" PRIu32, address, size, count);
- if (count == 0 || buffer == NULL)
+ if (count == 0 || !buffer)
return ERROR_COMMAND_SYNTAX_ERROR;
return mem_ap_write_buf(mem_ap->ap, buffer, size, count, address);
.assert_reset = mem_ap_assert_reset,
.deassert_reset = mem_ap_deassert_reset,
+ .get_gdb_arch = mem_ap_get_gdb_arch,
+ .get_gdb_reg_list = mem_ap_get_gdb_reg_list,
+
.read_memory = mem_ap_read_memory,
.write_memory = mem_ap_write_memory,
};
projects / fw / openocd / blobdiff