[PATCH] Add utility to dump _PLD (Physical Device Location) information (LP: #1281835)
Colin King
colin.king at canonical.com
Tue Feb 18 23:33:53 UTC 2014
From: Colin Ian King <colin.king at canonical.com>
Add human readable _PLD dump util.
Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
src/Makefile.am | 1 +
src/acpi/plddump/plddump.c | 268 +++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 269 insertions(+)
create mode 100644 src/acpi/plddump/plddump.c
diff --git a/src/Makefile.am b/src/Makefile.am
index bd6cf01..d3c1f45 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -43,6 +43,7 @@ fwts_SOURCES = main.c \
acpi/osilinux/osilinux.c \
acpi/pcc/pcc.c \
acpi/powerbutton/powerbutton.c \
+ acpi/plddump/plddump.c \
acpi/s3/s3.c \
acpi/s3power/s3power.c \
acpi/s4/s4.c \
diff --git a/src/acpi/plddump/plddump.c b/src/acpi/plddump/plddump.c
new file mode 100644
index 0000000..843de59
--- /dev/null
+++ b/src/acpi/plddump/plddump.c
@@ -0,0 +1,268 @@
+/*
+ * Copyright (C) 2014 Canonical
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+#include "fwts.h"
+#include <stdint.h>
+#include <stdbool.h>
+#include <unistd.h>
+
+/* acpica headers */
+#include "acpi.h"
+#include "fwts_acpi_object_eval.h"
+
+/*
+ * plddump_init()
+ * initialize ACPI
+ */
+static int plddump_init(fwts_framework *fw)
+{
+ if (fwts_acpi_init(fw) != FWTS_OK) {
+ fwts_log_error(fw, "Cannot initialise ACPI.");
+ return FWTS_ERROR;
+ }
+
+ return FWTS_OK;
+}
+
+/*
+ * plddump_deinit
+ * de-intialize ACPI
+ */
+static int plddump_deinit(fwts_framework *fw)
+{
+ return fwts_acpi_deinit(fw);
+}
+
+static inline uint64_t get_bit(
+ const uint8_t *data,
+ const uint32_t offset)
+{
+ return (data[offset / 8] >> (offset % 8)) & 1;
+}
+
+static uint64_t get_bits(
+ const uint8_t *data,
+ const uint32_t offset,
+ const uint32_t nbits)
+{
+ uint64_t val = 0;
+ uint32_t i;
+
+ for (i = 0; i < nbits; i++)
+ val |= (get_bit(data, offset + i) << i);
+
+ return val;
+}
+
+static const char *yesno[] = {
+ "No",
+ "Yes"
+};
+
+static const char *panel_surface[] = {
+ "Top",
+ "Bottom",
+ "Left",
+ "Right",
+ "Front",
+ "Back",
+ "Unknown",
+ "Unknowm"
+};
+
+static const char *vertical_position[] = {
+ "Upper",
+ "Center",
+ "Lower",
+ "Unknown"
+};
+
+static const char *horizontal_position[] = {
+ "Left",
+ "Center",
+ "Right",
+ "Unknown"
+};
+
+static const char *shape[] = {
+ "Round",
+ "Oval",
+ "Square",
+ "Vertical Rectangle",
+ "Horizontal Rectangle",
+ "Veritical Trapezoid",
+ "Horizontal Trapezoid",
+ "Unknown",
+ "Chamfered",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved",
+ "Reserved"
+};
+
+static void plddump_buffer(
+ fwts_framework *fw,
+ const char *name,
+ const void *data,
+ const uint32_t length)
+{
+ fwts_log_nl(fw);
+ fwts_log_info_verbatum(fw, "Name: %s", name);
+ fwts_log_info_verbatum(fw, " Revision: %" PRIu64,
+ get_bits(data, 0, 7));
+ fwts_log_info_verbatum(fw, " Ignore Color: %" PRIu64 " (%s)",
+ get_bits(data, 7, 1),
+ yesno[get_bits(data, 7, 1)]);
+ if (!get_bits(data, 7, 1)) {
+ fwts_log_info_verbatum(fw, " Red: 0x%2.2" PRIx64,
+ get_bits(data, 8, 8));
+ fwts_log_info_verbatum(fw, " Green: 0x%2.2" PRIx64,
+ get_bits(data, 16, 8));
+ fwts_log_info_verbatum(fw, " Blue: 0x%2.2" PRIx64,
+ get_bits(data, 24, 8));
+ }
+ fwts_log_info_verbatum(fw, " Width: %" PRIu64 " mm",
+ get_bits(data, 32, 16));
+ fwts_log_info_verbatum(fw, " Height: %" PRIu64 " mm",
+ get_bits(data, 48, 16));
+ fwts_log_info_verbatum(fw, " User Visible: %" PRIu64 " (%s)",
+ get_bits(data, 64, 1),
+ yesno[get_bits(data, 64, 1)]);
+ fwts_log_info_verbatum(fw, " Dock: %" PRIu64 " (%s)",
+ get_bits(data, 65, 1),
+ yesno[get_bits(data, 65, 1)]);
+ fwts_log_info_verbatum(fw, " Lid: %" PRIu64 " (%s)",
+ get_bits(data, 66, 1),
+ yesno[get_bits(data, 66, 1)]);
+ fwts_log_info_verbatum(fw, " Panel Surface: %" PRIu64 " (%s)",
+ get_bits(data, 67, 3),
+ panel_surface[get_bits(data, 67, 3)]);
+ if (get_bits(data, 67, 3) < 6) {
+ fwts_log_info_verbatum(fw, " Vertical Position: %" PRIu64 " (%s)",
+ get_bits(data, 70, 2),
+ vertical_position[get_bits(data, 70, 2)]);
+ fwts_log_info_verbatum(fw, " Horizontal Position: %" PRIu64 " (%s)",
+ get_bits(data, 72, 2),
+ horizontal_position[get_bits(data, 72, 2)]);
+ }
+ fwts_log_info_verbatum(fw, " Shape: %" PRIu64 " (%s)",
+ get_bits(data, 74, 4),
+ shape[get_bits(data, 74, 4)]);
+ fwts_log_info_verbatum(fw, " Group Orientation: %" PRIu64,
+ get_bits(data, 78, 1));
+ fwts_log_info_verbatum(fw, " Group Token: %" PRIu64,
+ get_bits(data, 79, 8));
+ fwts_log_info_verbatum(fw, " Group Position: %" PRIu64,
+ get_bits(data, 87, 8));
+ fwts_log_info_verbatum(fw, " Bay: %" PRIu64 " (%s)",
+ get_bits(data, 95, 1),
+ yesno[get_bits(data, 95, 1)]);
+ fwts_log_info_verbatum(fw, " Ejectable: %" PRIu64 " (%s)",
+ get_bits(data, 96, 1),
+ yesno[get_bits(data, 96, 1)]);
+ fwts_log_info_verbatum(fw, " OSPM Ejection Rqd: %" PRIu64 " (%s)",
+ get_bits(data, 97, 1),
+ yesno[get_bits(data, 97, 1)]);
+ fwts_log_info_verbatum(fw, " Cabinet Number: %" PRIu64,
+ get_bits(data, 98, 8));
+ fwts_log_info_verbatum(fw, " Card Cage Number: %" PRIu64,
+ get_bits(data, 106, 8));
+ fwts_log_info_verbatum(fw, " Reference: %" PRIu64 " (%s)",
+ get_bits(data, 114, 1),
+ yesno[get_bits(data, 114, 1)]);
+ fwts_log_info_verbatum(fw, " Rotation: %" PRIu64 " (%" PRIu64 " degrees)",
+ get_bits(data, 115, 3),
+ get_bits(data, 115, 3) * 45);
+ fwts_log_info_verbatum(fw, " Order: %" PRIu64,
+ get_bits(data, 119, 5));
+ if (length >= 20) {
+ fwts_log_info_verbatum(fw, " Vertical Offset: %" PRIu64 " mm",
+ get_bits(data, 128, 16));
+ fwts_log_info_verbatum(fw, " Horizontal Offset: %" PRIu64 " mm",
+ get_bits(data, 144, 16));
+ }
+}
+
+static int plddump_test1(fwts_framework *fw)
+{
+ fwts_list_link *item;
+ fwts_list *objects;
+ const size_t name_len = 4;
+ bool found = false;
+
+ if ((objects = fwts_acpi_object_get_names()) == NULL) {
+ fwts_log_info(fw, "Cannot find any ACPI objects");
+ return FWTS_ERROR;
+ }
+
+ fwts_list_foreach(item, objects) {
+ char *name = fwts_list_data(char *, item);
+ const size_t len = strlen(name);
+
+ if (!strncmp("_PLD", name + len - name_len, name_len)) {
+ ACPI_OBJECT_LIST arg_list;
+ ACPI_BUFFER buf;
+ ACPI_OBJECT *obj;
+ int ret;
+
+ arg_list.Count = 0;
+ arg_list.Pointer = NULL;
+
+ ret = fwts_acpi_object_evaluate(fw, name, &arg_list, &buf);
+ if ((ACPI_FAILURE(ret) != AE_OK) || (buf.Pointer == NULL))
+ continue;
+
+ /* Do we have a valid buffer in the package to dump? */
+ obj = buf.Pointer;
+ if ((obj->Type == ACPI_TYPE_PACKAGE) &&
+ (obj->Package.Count) &&
+ (obj->Package.Elements[0].Type == ACPI_TYPE_BUFFER) &&
+ (obj->Package.Elements[0].Buffer.Pointer != NULL) &&
+ (obj->Package.Elements[0].Buffer.Length >= 16)) {
+ plddump_buffer(fw,
+ name,
+ obj->Package.Elements[0].Buffer.Pointer,
+ obj->Package.Elements[0].Buffer.Length);
+ found = true;
+ }
+ free(buf.Pointer);
+ }
+ }
+
+ if (!found)
+ fwts_log_info_verbatum(fw, "No _PLD objects found.");
+
+ return FWTS_OK;
+}
+
+static fwts_framework_minor_test plddump_tests[] = {
+ { plddump_test1, "Dump ACPI _PLD (Physical Device Location)." },
+ { NULL, NULL }
+};
+
+static fwts_framework_ops plddump_ops = {
+ .description = "Dump ACPI _PLD (Physical Device Location).",
+ .init = plddump_init,
+ .deinit = plddump_deinit,
+ .minor_tests = plddump_tests
+};
+
+FWTS_REGISTER("plddump", &plddump_ops, FWTS_TEST_ANYTIME, FWTS_FLAG_UTILS);
--
1.9.rc1
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