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linux-next/drivers/acpi/acpica/rsdump.c
Mika Westerberg f8a6c86644 ACPICA: ACPI 6.2: Add support for PinGroupFunction() resource 
ACPICA commit bd9a745749eac7137cd23085e6bdeb322de14ea2

PinGroupFunction() is a new resource introduced with ACPI 6.2. It is
used with PinGroup() to configure specific mode for a set of pins
exposed by a GPIO controller.

The format of the resource is:

  PinGroupFunction (Shared/Exclusive, FunctionNumber, ResourceSource,
                    ResourceSourceIndex, ResourceSourceLabel,
                    ResourceUsage, DescriptorName, VendorData)

The resource_source and ResourceSourceLabel fields are used to specify
the PinGroup() resource referenced by PinGroupFunction().

  Device (GPIO)
  {
      Name (_CRS, ResourceTemplate () {
          PinGroup ("group1") {2, 3}
          PinGroup ("group2") {4, 5}
          ...
      })
  }

  Device (I2C)
  {
      Name (_CRS, ResourceTemplate () {
          PinGroupFunction (Exclusive, 6, "^GPIO", 0, "mygroup2")
      })
  }

In the above example the PinGroupFunction() references the second
PinGroup() resource (using label "mygroup2" and configures pins 4 and 5
into mode 6.

Link: https://github.com/acpica/acpica/commit/bd9a7457
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2017-06-12 14:58:39 +02:00

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/*******************************************************************************
*
* Module Name: rsdump - AML debugger support for resource structures.
*
******************************************************************************/
/*
* Copyright (C) 2000 - 2017, 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 <acpi/acpi.h>
#include "accommon.h"
#include "acresrc.h"
#define _COMPONENT ACPI_RESOURCES
ACPI_MODULE_NAME("rsdump")
/*
* All functions in this module are used by the AML Debugger only
*/
/* Local prototypes */
static void acpi_rs_out_string(const char *title, const char *value);
static void acpi_rs_out_integer8(const char *title, u8 value);
static void acpi_rs_out_integer16(const char *title, u16 value);
static void acpi_rs_out_integer32(const char *title, u32 value);
static void acpi_rs_out_integer64(const char *title, u64 value);
static void acpi_rs_out_title(const char *title);
static void acpi_rs_dump_byte_list(u16 length, u8 *data);
static void acpi_rs_dump_word_list(u16 length, u16 *data);
static void acpi_rs_dump_dword_list(u8 length, u32 *data);
static void acpi_rs_dump_short_byte_list(u8 length, u8 *data);
static void
acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source);
static void
acpi_rs_dump_resource_label(char *title,
struct acpi_resource_label *resource_label);
static void acpi_rs_dump_address_common(union acpi_resource_data *resource);
static void
acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table);
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_resource_list
*
* PARAMETERS: resource_list - Pointer to a resource descriptor list
*
* RETURN: None
*
* DESCRIPTION: Dispatches the structure to the correct dump routine.
*
******************************************************************************/
void acpi_rs_dump_resource_list(struct acpi_resource *resource_list)
{
u32 count = 0;
u32 type;
ACPI_FUNCTION_ENTRY();
/* Check if debug output enabled */
if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
return;
}
/* Walk list and dump all resource descriptors (END_TAG terminates) */
do {
acpi_os_printf("\n[%02X] ", count);
count++;
/* Validate Type before dispatch */
type = resource_list->type;
if (type > ACPI_RESOURCE_TYPE_MAX) {
acpi_os_printf
("Invalid descriptor type (%X) in resource list\n",
resource_list->type);
return;
}
/* Sanity check the length. It must not be zero, or we loop forever */
if (!resource_list->length) {
acpi_os_printf
("Invalid zero length descriptor in resource list\n");
return;
}
/* Dump the resource descriptor */
if (type == ACPI_RESOURCE_TYPE_SERIAL_BUS) {
acpi_rs_dump_descriptor(&resource_list->data,
acpi_gbl_dump_serial_bus_dispatch
[resource_list->data.
common_serial_bus.type]);
} else {
acpi_rs_dump_descriptor(&resource_list->data,
acpi_gbl_dump_resource_dispatch
[type]);
}
/* Point to the next resource structure */
resource_list = ACPI_NEXT_RESOURCE(resource_list);
/* Exit when END_TAG descriptor is reached */
} while (type != ACPI_RESOURCE_TYPE_END_TAG);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_irq_list
*
* PARAMETERS: route_table - Pointer to the routing table to dump.
*
* RETURN: None
*
* DESCRIPTION: Print IRQ routing table
*
******************************************************************************/
void acpi_rs_dump_irq_list(u8 *route_table)
{
struct acpi_pci_routing_table *prt_element;
u8 count;
ACPI_FUNCTION_ENTRY();
/* Check if debug output enabled */
if (!ACPI_IS_DEBUG_ENABLED(ACPI_LV_RESOURCES, _COMPONENT)) {
return;
}
prt_element = ACPI_CAST_PTR(struct acpi_pci_routing_table, route_table);
/* Dump all table elements, Exit on zero length element */
for (count = 0; prt_element->length; count++) {
acpi_os_printf("\n[%02X] PCI IRQ Routing Table Package\n",
count);
acpi_rs_dump_descriptor(prt_element, acpi_rs_dump_prt);
prt_element = ACPI_ADD_PTR(struct acpi_pci_routing_table,
prt_element, prt_element->length);
}
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_descriptor
*
* PARAMETERS: resource - Buffer containing the resource
* table - Table entry to decode the resource
*
* RETURN: None
*
* DESCRIPTION: Dump a resource descriptor based on a dump table entry.
*
******************************************************************************/
static void
acpi_rs_dump_descriptor(void *resource, struct acpi_rsdump_info *table)
{
u8 *target = NULL;
u8 *previous_target;
const char *name;
u8 count;
/* First table entry must contain the table length (# of table entries) */
count = table->offset;
while (count) {
previous_target = target;
target = ACPI_ADD_PTR(u8, resource, table->offset);
name = table->name;
switch (table->opcode) {
case ACPI_RSD_TITLE:
/*
* Optional resource title
*/
if (table->name) {
acpi_os_printf("%s Resource\n", name);
}
break;
/* Strings */
case ACPI_RSD_LITERAL:
acpi_rs_out_string(name,
ACPI_CAST_PTR(char, table->pointer));
break;
case ACPI_RSD_STRING:
acpi_rs_out_string(name, ACPI_CAST_PTR(char, target));
break;
/* Data items, 8/16/32/64 bit */
case ACPI_RSD_UINT8:
if (table->pointer) {
acpi_rs_out_string(name,
table->pointer[*target]);
} else {
acpi_rs_out_integer8(name, ACPI_GET8(target));
}
break;
case ACPI_RSD_UINT16:
acpi_rs_out_integer16(name, ACPI_GET16(target));
break;
case ACPI_RSD_UINT32:
acpi_rs_out_integer32(name, ACPI_GET32(target));
break;
case ACPI_RSD_UINT64:
acpi_rs_out_integer64(name, ACPI_GET64(target));
break;
/* Flags: 1-bit and 2-bit flags supported */
case ACPI_RSD_1BITFLAG:
acpi_rs_out_string(name,
table->pointer[*target & 0x01]);
break;
case ACPI_RSD_2BITFLAG:
acpi_rs_out_string(name,
table->pointer[*target & 0x03]);
break;
case ACPI_RSD_3BITFLAG:
acpi_rs_out_string(name,
table->pointer[*target & 0x07]);
break;
case ACPI_RSD_SHORTLIST:
/*
* Short byte list (single line output) for DMA and IRQ resources
* Note: The list length is obtained from the previous table entry
*/
if (previous_target) {
acpi_rs_out_title(name);
acpi_rs_dump_short_byte_list(*previous_target,
target);
}
break;
case ACPI_RSD_SHORTLISTX:
/*
* Short byte list (single line output) for GPIO vendor data
* Note: The list length is obtained from the previous table entry
*/
if (previous_target) {
acpi_rs_out_title(name);
acpi_rs_dump_short_byte_list(*previous_target,
*
(ACPI_CAST_INDIRECT_PTR
(u8, target)));
}
break;
case ACPI_RSD_LONGLIST:
/*
* Long byte list for Vendor resource data
* Note: The list length is obtained from the previous table entry
*/
if (previous_target) {
acpi_rs_dump_byte_list(ACPI_GET16
(previous_target),
target);
}
break;
case ACPI_RSD_DWORDLIST:
/*
* Dword list for Extended Interrupt resources
* Note: The list length is obtained from the previous table entry
*/
if (previous_target) {
acpi_rs_dump_dword_list(*previous_target,
ACPI_CAST_PTR(u32,
target));
}
break;
case ACPI_RSD_WORDLIST:
/*
* Word list for GPIO Pin Table
* Note: The list length is obtained from the previous table entry
*/
if (previous_target) {
acpi_rs_dump_word_list(*previous_target,
*(ACPI_CAST_INDIRECT_PTR
(u16, target)));
}
break;
case ACPI_RSD_ADDRESS:
/*
* Common flags for all Address resources
*/
acpi_rs_dump_address_common(ACPI_CAST_PTR
(union acpi_resource_data,
target));
break;
case ACPI_RSD_SOURCE:
/*
* Optional resource_source for Address resources
*/
acpi_rs_dump_resource_source(ACPI_CAST_PTR
(struct
acpi_resource_source,
target));
break;
case ACPI_RSD_LABEL:
/*
* resource_label
*/
acpi_rs_dump_resource_label("Resource Label",
ACPI_CAST_PTR(struct
acpi_resource_label,
target));
break;
case ACPI_RSD_SOURCE_LABEL:
/*
* resource_source_label
*/
acpi_rs_dump_resource_label("Resource Source Label",
ACPI_CAST_PTR(struct
acpi_resource_label,
target));
break;
default:
acpi_os_printf("**** Invalid table opcode [%X] ****\n",
table->opcode);
return;
}
table++;
count--;
}
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_resource_source
*
* PARAMETERS: resource_source - Pointer to a Resource Source struct
*
* RETURN: None
*
* DESCRIPTION: Common routine for dumping the optional resource_source and the
* corresponding resource_source_index.
*
******************************************************************************/
static void
acpi_rs_dump_resource_source(struct acpi_resource_source *resource_source)
{
ACPI_FUNCTION_ENTRY();
if (resource_source->index == 0xFF) {
return;
}
acpi_rs_out_integer8("Resource Source Index", resource_source->index);
acpi_rs_out_string("Resource Source",
resource_source->string_ptr ?
resource_source->string_ptr : "[Not Specified]");
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_resource_label
*
* PARAMETERS: title - Title of the dumped resource field
* resource_label - Pointer to a Resource Label struct
*
* RETURN: None
*
* DESCRIPTION: Common routine for dumping the resource_label
*
******************************************************************************/
static void
acpi_rs_dump_resource_label(char *title,
struct acpi_resource_label *resource_label)
{
ACPI_FUNCTION_ENTRY();
acpi_rs_out_string(title,
resource_label->string_ptr ?
resource_label->string_ptr : "[Not Specified]");
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump_address_common
*
* PARAMETERS: resource - Pointer to an internal resource descriptor
*
* RETURN: None
*
* DESCRIPTION: Dump the fields that are common to all Address resource
* descriptors
*
******************************************************************************/
static void acpi_rs_dump_address_common(union acpi_resource_data *resource)
{
ACPI_FUNCTION_ENTRY();
/* Decode the type-specific flags */
switch (resource->address.resource_type) {
case ACPI_MEMORY_RANGE:
acpi_rs_dump_descriptor(resource, acpi_rs_dump_memory_flags);
break;
case ACPI_IO_RANGE:
acpi_rs_dump_descriptor(resource, acpi_rs_dump_io_flags);
break;
case ACPI_BUS_NUMBER_RANGE:
acpi_rs_out_string("Resource Type", "Bus Number Range");
break;
default:
acpi_rs_out_integer8("Resource Type",
(u8) resource->address.resource_type);
break;
}
/* Decode the general flags */
acpi_rs_dump_descriptor(resource, acpi_rs_dump_general_flags);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_out*
*
* PARAMETERS: title - Name of the resource field
* value - Value of the resource field
*
* RETURN: None
*
* DESCRIPTION: Miscellaneous helper functions to consistently format the
* output of the resource dump routines
*
******************************************************************************/
static void acpi_rs_out_string(const char *title, const char *value)
{
acpi_os_printf("%27s : %s", title, value);
if (!*value) {
acpi_os_printf("[NULL NAMESTRING]");
}
acpi_os_printf("\n");
}
static void acpi_rs_out_integer8(const char *title, u8 value)
{
acpi_os_printf("%27s : %2.2X\n", title, value);
}
static void acpi_rs_out_integer16(const char *title, u16 value)
{
acpi_os_printf("%27s : %4.4X\n", title, value);
}
static void acpi_rs_out_integer32(const char *title, u32 value)
{
acpi_os_printf("%27s : %8.8X\n", title, value);
}
static void acpi_rs_out_integer64(const char *title, u64 value)
{
acpi_os_printf("%27s : %8.8X%8.8X\n", title, ACPI_FORMAT_UINT64(value));
}
static void acpi_rs_out_title(const char *title)
{
acpi_os_printf("%27s : ", title);
}
/*******************************************************************************
*
* FUNCTION: acpi_rs_dump*List
*
* PARAMETERS: length - Number of elements in the list
* data - Start of the list
*
* RETURN: None
*
* DESCRIPTION: Miscellaneous functions to dump lists of raw data
*
******************************************************************************/
static void acpi_rs_dump_byte_list(u16 length, u8 * data)
{
u8 i;
for (i = 0; i < length; i++) {
acpi_os_printf("%25s%2.2X : %2.2X\n", "Byte", i, data[i]);
}
}
static void acpi_rs_dump_short_byte_list(u8 length, u8 * data)
{
u8 i;
for (i = 0; i < length; i++) {
acpi_os_printf("%X ", data[i]);
}
acpi_os_printf("\n");
}
static void acpi_rs_dump_dword_list(u8 length, u32 * data)
{
u8 i;
for (i = 0; i < length; i++) {
acpi_os_printf("%25s%2.2X : %8.8X\n", "Dword", i, data[i]);
}
}
static void acpi_rs_dump_word_list(u16 length, u16 *data)
{
u16 i;
for (i = 0; i < length; i++) {
acpi_os_printf("%25s%2.2X : %4.4X\n", "Word", i, data[i]);
}
}
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