Move the intel_lid tool from the 2D driver to here.

.gitignore

@@ -52,6 +52,7 @@ tools/intel_gpu_dump
 tools/intel_gpu_time
 tools/intel_gpu_top
 tools/intel_gtt
+tools/intel_lid
 tools/intel_reg_dumper
 tools/intel_reg_write
 tools/intel_stepping

tools/Makefile.am

@@ -5,6 +5,7 @@ bin_PROGRAMS = \
 	intel_gpu_top \
 	intel_gpu_time \
 	intel_gtt \
+	intel_lid \
 	intel_stepping \
 	intel_reg_dumper \
 	intel_reg_write \

tools/intel_lid.c

@@ -0,0 +1,144 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *    Zhenyu Wang <zhenyu.z.wang@intel.com>
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+#include <pciaccess.h>
+#include <err.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include "intel_gpu_tools.h"
+#include "intel_reg.h"
+#include "intel_bios.h"
+
+enum lid_status {
+	LID_UNKNOWN = -1,
+	LID_OPEN,
+	LID_CLOSE,
+};
+
+#define ACPI_BUTTON "/proc/acpi/button/"
+#define ACPI_LID "/proc/acpi/button/lid/"
+
+static int i830_lvds_acpi_lid_state(void)
+{
+	int fd;
+	DIR *button_dir;
+	DIR *lid_dir;
+	struct dirent *lid_dent;
+	char *state_name;
+	char state[64];
+	enum lid_status ret = LID_UNKNOWN;
+
+	button_dir = opendir(ACPI_BUTTON);
+	/* If acpi button driver is not loaded, bypass ACPI check method */
+	if (button_dir == NULL)
+		goto out;
+	closedir(button_dir);
+
+	lid_dir = opendir(ACPI_LID);
+
+	/* no acpi lid object found */
+	if (lid_dir == NULL)
+		goto out;
+
+	while (1) {
+		lid_dent = readdir(lid_dir);
+		if (lid_dent == NULL) {
+			/* no LID object */
+			closedir(lid_dir);
+			goto out;
+		}
+		if (strcmp(lid_dent->d_name, ".") &&
+		    strcmp(lid_dent->d_name, "..")) {
+			break;
+		}
+	}
+	state_name = malloc(strlen(ACPI_LID) + strlen(lid_dent->d_name) + 7);
+	memset(state_name, 0, sizeof(state_name));
+	strcat(state_name, ACPI_LID);
+	strcat(state_name, lid_dent->d_name);
+	strcat(state_name, "/state");
+
+	closedir(lid_dir);
+
+	if ((fd = open(state_name, O_RDONLY)) == -1) {
+		free(state_name);
+		goto out;
+	}
+	free(state_name);
+	if (read(fd, state, 64) == -1) {
+		close(fd);
+		goto out;
+	}
+	close(fd);
+	if (strstr(state, "open"))
+		ret = LID_OPEN;
+	else if (strstr(state, "closed"))
+		ret = LID_CLOSE;
+	else			/* "unsupported" */
+		ret = LID_UNKNOWN;
+
+out:
+	return ret;
+}
+
+int main(int argc, char **argv)
+{
+	int swf14, acpi_lid;
+
+	intel_get_mmio();
+
+	while (1) {
+		swf14 = INREG(SWF14);
+
+		printf("Intel LVDS Lid status:\n");
+		printf("\tSWF14(0x%x) : %s\n", swf14,
+		       swf14 & SWF14_LID_SWITCH_EN ? "close" : "open");
+
+		acpi_lid = i830_lvds_acpi_lid_state();
+		switch (acpi_lid) {
+		case LID_UNKNOWN:
+			printf("\tACPI Lid state : unknown\n");
+			break;
+		case LID_OPEN:
+			printf("\tACPI Lid state : open\n");
+			break;
+		case LID_CLOSE:
+			printf("\tACPI Lid state : close\n");
+			break;
+		}
+		sleep(2);
+	}
+	return 0;
+}