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https://github.com/tiagovignatti/intel-gpu-tools.git
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95374225e8
A few of the tools can be performed post-mortem from a different system, so it is useful to be able to compile those tools on those foreign systems. Obviously, any program to interact with the PCI device or talk to GEM will fail on a non-Intel system. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
145 lines
3.4 KiB
C
145 lines
3.4 KiB
C
/*
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* Copyright © 2009 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Zhenyu Wang <zhenyu.z.wang@intel.com>
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include <pciaccess.h>
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#include <err.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <dirent.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include "intel_gpu_tools.h"
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#include "intel_reg.h"
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#include "intel_bios.h"
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enum lid_status {
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LID_UNKNOWN = -1,
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LID_OPEN,
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LID_CLOSE,
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};
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#define ACPI_BUTTON "/proc/acpi/button/"
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#define ACPI_LID "/proc/acpi/button/lid/"
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static int i830_lvds_acpi_lid_state(void)
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{
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int fd;
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DIR *button_dir;
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DIR *lid_dir;
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struct dirent *lid_dent;
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char *state_name;
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char state[64];
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enum lid_status ret = LID_UNKNOWN;
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button_dir = opendir(ACPI_BUTTON);
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/* If acpi button driver is not loaded, bypass ACPI check method */
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if (button_dir == NULL)
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goto out;
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closedir(button_dir);
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lid_dir = opendir(ACPI_LID);
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/* no acpi lid object found */
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if (lid_dir == NULL)
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goto out;
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while (1) {
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lid_dent = readdir(lid_dir);
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if (lid_dent == NULL) {
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/* no LID object */
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closedir(lid_dir);
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goto out;
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}
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if (strcmp(lid_dent->d_name, ".") &&
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strcmp(lid_dent->d_name, "..")) {
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break;
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}
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}
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state_name = malloc(strlen(ACPI_LID) + strlen(lid_dent->d_name) + 7);
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memset(state_name, 0, sizeof(state_name));
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strcat(state_name, ACPI_LID);
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strcat(state_name, lid_dent->d_name);
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strcat(state_name, "/state");
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closedir(lid_dir);
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if ((fd = open(state_name, O_RDONLY)) == -1) {
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free(state_name);
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goto out;
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}
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free(state_name);
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if (read(fd, state, 64) == -1) {
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close(fd);
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goto out;
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}
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close(fd);
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if (strstr(state, "open"))
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ret = LID_OPEN;
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else if (strstr(state, "closed"))
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ret = LID_CLOSE;
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else /* "unsupported" */
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ret = LID_UNKNOWN;
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out:
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return ret;
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}
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int main(int argc, char **argv)
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{
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int swf14, acpi_lid;
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intel_get_mmio(intel_get_pci_device());
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while (1) {
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swf14 = INREG(SWF14);
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printf("Intel LVDS Lid status:\n");
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printf("\tSWF14(0x%x) : %s\n", swf14,
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swf14 & SWF14_LID_SWITCH_EN ? "close" : "open");
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acpi_lid = i830_lvds_acpi_lid_state();
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switch (acpi_lid) {
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case LID_UNKNOWN:
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printf("\tACPI Lid state : unknown\n");
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break;
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case LID_OPEN:
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printf("\tACPI Lid state : open\n");
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break;
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case LID_CLOSE:
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printf("\tACPI Lid state : close\n");
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break;
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}
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sleep(2);
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}
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return 0;
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}
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