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/*******************************************************************************

 *

 * Module Name: dbmethod - Debug commands for control methods

 *

 ******************************************************************************/

/*

 * Copyright (C) 2000 - 2015, Intel Corp.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions, and the following disclaimer,

 *    without modification.

 * 2. Redistributions in binary form must reproduce at minimum a disclaimer

 *    substantially similar to the "NO WARRANTY" disclaimer below

 *    ("Disclaimer") and any redistribution must be conditioned upon

 *    including a substantially similar Disclaimer requirement for further

 *    binary redistribution.

 * 3. Neither the names of the above-listed copyright holders nor the names

 *    of any contributors may be used to endorse or promote products derived

 *    from this software without specific prior written permission.

 *

 * Alternatively, this software may be distributed under the terms of the

 * GNU General Public License ("GPL") version 2 as published by the Free

 * Software Foundation.

 *

 * NO WARRANTY

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR

 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING

 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGES.

 */

#include 

#include "accommon.h"

#include "acdispat.h"

#include "acnamesp.h"

#include "acdebug.h"

#include "acparser.h"

#include "acpredef.h"

#define _COMPONENT          ACPI_CA_DEBUGGER

ACPI_MODULE_NAME("dbmethod")

/*******************************************************************************

 *

 * FUNCTION:    acpi_db_set_method_breakpoint

 *

 * PARAMETERS:  location            - AML offset of breakpoint

 *              walk_state          - Current walk info

 *              op                  - Current Op (from parse walk)

 *

 * RETURN:      None

 *

 * DESCRIPTION: Set a breakpoint in a control method at the specified

 *              AML offset

 *

 ******************************************************************************/

void

acpi_db_set_method_breakpoint(char *location,

			      struct acpi_walk_state *walk_state,

			      union acpi_parse_object *op)

{

	u32 address;

	u32 aml_offset;

	if (!op) {

		acpi_os_printf("There is no method currently executing\n");

		return;

	}

	/* Get and verify the breakpoint address */

	address = strtoul(location, NULL, 16);

	aml_offset = (u32)ACPI_PTR_DIFF(op->common.aml,

					walk_state->parser_state.aml_start);

	if (address <= aml_offset) {

		acpi_os_printf("Breakpoint %X is beyond current address %X\n",

			       address, aml_offset);

	}

	/* Save breakpoint in current walk */

	walk_state->user_breakpoint = address;

	acpi_os_printf("Breakpoint set at AML offset %X\n", address);

}

/*******************************************************************************

 *

 * FUNCTION:    acpi_db_set_method_call_breakpoint

 *

 * PARAMETERS:  op                  - Current Op (from parse walk)

 *

 * RETURN:      None

 *

 * DESCRIPTION: Set a breakpoint in a control method at the specified

 *              AML offset

 *

 ******************************************************************************/

void acpi_db_set_method_call_breakpoint(union acpi_parse_object *op)

{

	if (!op) {

		acpi_os_printf("There is no method currently executing\n");

		return;

	}

	acpi_gbl_step_to_next_call = TRUE;

}

/*******************************************************************************

 *

 * FUNCTION:    acpi_db_set_method_data

 *

 * PARAMETERS:  type_arg        - L for local, A for argument

 *              index_arg       - which one

 *              value_arg       - Value to set.

 *

 * RETURN:      None

 *

 * DESCRIPTION: Set a local or argument for the running control method.

 *              NOTE: only object supported is Number.

 *

 ******************************************************************************/

void acpi_db_set_method_data(char *type_arg, char *index_arg, char *value_arg)

{

	char type;

	u32 index;

	u32 value;

	struct acpi_walk_state *walk_state;

	union acpi_operand_object *obj_desc;

	acpi_status status;

	struct acpi_namespace_node *node;

	/* Validate type_arg */

	acpi_ut_strupr(type_arg);

	type = type_arg[0];

	if ((type != 'L') && (type != 'A') && (type != 'N')) {

		acpi_os_printf("Invalid SET operand: %s\n", type_arg);

		return;

	}

	value = strtoul(value_arg, NULL, 16);

	if (type == 'N') {

		node = acpi_db_convert_to_node(index_arg);

		if (!node) {

			return;

		}

		if (node->type != ACPI_TYPE_INTEGER) {

			acpi_os_printf("Can only set Integer nodes\n");

			return;

		}

		obj_desc = node->object;

		obj_desc->integer.value = value;

		return;

	}

	/* Get the index and value */

	index = strtoul(index_arg, NULL, 16);

	walk_state = acpi_ds_get_current_walk_state(acpi_gbl_current_walk_list);

	if (!walk_state) {

		acpi_os_printf("There is no method currently executing\n");

		return;

	}

	/* Create and initialize the new object */

	obj_desc = acpi_ut_create_integer_object((u64)value);

	if (!obj_desc) {

		acpi_os_printf("Could not create an internal object\n");

		return;

	}

	/* Store the new object into the target */

	switch (type) {

	case 'A':

		/* Set a method argument */

		if (index > ACPI_METHOD_MAX_ARG) {

			acpi_os_printf("Arg%u - Invalid argument name\n",

				       index);

			goto cleanup;

		}

		status = acpi_ds_store_object_to_local(ACPI_REFCLASS_ARG,

						       index, obj_desc,

						       walk_state);

		if (ACPI_FAILURE(status)) {

			goto cleanup;

		}

		obj_desc = walk_state->arguments[index].object;

		acpi_os_printf("Arg%u: ", index);

		acpi_db_display_internal_object(obj_desc, walk_state);

		break;

	case 'L':

		/* Set a method local */

		if (index > ACPI_METHOD_MAX_LOCAL) {

			acpi_os_printf

			    ("Local%u - Invalid local variable name\n", index);

			goto cleanup;

		}

		status = acpi_ds_store_object_to_local(ACPI_REFCLASS_LOCAL,

						       index, obj_desc,

						       walk_state);

		if (ACPI_FAILURE(status)) {

			goto cleanup;

		}

		obj_desc = walk_state->local_variables[index].object;

		acpi_os_printf("Local%u: ", index);

		acpi_db_display_internal_object(obj_desc, walk_state);

		break;

	default:

		break;

	}

cleanup:

	acpi_ut_remove_reference(obj_desc);

}

/*******************************************************************************

 *

 * FUNCTION:    acpi_db_disassemble_aml

 *

 * PARAMETERS:  statements          - Number of statements to disassemble

 *              op                  - Current Op (from parse walk)

 *

 * RETURN:      None

 *

 * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number

 *              of statements specified.

 *

 ******************************************************************************/

void acpi_db_disassemble_aml(char *statements, union acpi_parse_object *op)

{

	u32 num_statements = 8;

	if (!op) {

		acpi_os_printf("There is no method currently executing\n");

		return;

	}

	if (statements) {

		num_statements = strtoul(statements, NULL, 0);

	}

#ifdef ACPI_DISASSEMBLER

	acpi_dm_disassemble(NULL, op, num_statements);

#endif

}

/*******************************************************************************

 *

 * FUNCTION:    acpi_db_disassemble_method

 *

 * PARAMETERS:  name            - Name of control method

 *

 * RETURN:      None

 *

 * DESCRIPTION: Display disassembled AML (ASL) starting from Op for the number

 *              of statements specified.

 *

 ******************************************************************************/

acpi_status acpi_db_disassemble_method(char *name)

{

	acpi_status status;

	union acpi_parse_object *op;

	struct acpi_walk_state *walk_state;

	union acpi_operand_object *obj_desc;

	struct acpi_namespace_node *method;

	method = acpi_db_convert_to_node(name);

	if (!method) {

		return (AE_BAD_PARAMETER);

	}

	if (method->type != ACPI_TYPE_METHOD) {

		ACPI_ERROR((AE_INFO, "%s (%s): Object must be a control method",

			    name, acpi_ut_get_type_name(method->type)));

		return (AE_BAD_PARAMETER);

	}

	obj_desc = method->object;

	op = acpi_ps_create_scope_op(obj_desc->method.aml_start);

	if (!op) {

		return (AE_NO_MEMORY);

	}

	/* Create and initialize a new walk state */

	walk_state = acpi_ds_create_walk_state(0, op, NULL, NULL);

	if (!walk_state) {

		return (AE_NO_MEMORY);

	}

	status = acpi_ds_init_aml_walk(walk_state, op, NULL,

				       obj_desc->method.aml_start,

				       obj_desc->method.aml_length, NULL,

				       ACPI_IMODE_LOAD_PASS1);

	if (ACPI_FAILURE(status)) {

		return (status);

	}

	status = acpi_ut_allocate_owner_id(&obj_desc->method.owner_id);

	walk_state->owner_id = obj_desc->method.owner_id;

	/* Push start scope on scope stack and make it current */

	status = acpi_ds_scope_stack_push(method, method->type, walk_state);

	if (ACPI_FAILURE(status)) {

		return (status);

	}

	/* Parse the entire method AML including deferred operators */

	walk_state->parse_flags &= ~ACPI_PARSE_DELETE_TREE;

	walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE;

	status = acpi_ps_parse_aml(walk_state);

#ifdef ACPI_DISASSEMBLER

	(void)acpi_dm_parse_deferred_ops(op);

	/* Now we can disassemble the method */

	acpi_gbl_dm_opt_verbose = FALSE;

	acpi_dm_disassemble(NULL, op, 0);

	acpi_gbl_dm_opt_verbose = TRUE;

#endif

	acpi_ps_delete_parse_tree(op);

	/* Method cleanup */

	acpi_ns_delete_namespace_subtree(method);

	acpi_ns_delete_namespace_by_owner(obj_desc->method.owner_id);

	acpi_ut_release_owner_id(&obj_desc->method.owner_id);

	return (AE_OK);

}