| /* |
| * Copyright 2010, Intel Corporation |
| * |
| * This file is part of PowerTOP |
| * |
| * This program file 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; version 2 of the License. |
| * |
| * 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 in a file named COPYING; if not, write to the |
| * Free Software Foundation, Inc, |
| * 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301 USA |
| * or just google for it. |
| * |
| * Authors: |
| * Arjan van de Ven <arjan@linux.intel.com> |
| */ |
| #include <iostream> |
| #include <fstream> |
| |
| #include <stdio.h> |
| #include <sys/types.h> |
| #include <dirent.h> |
| #include <unistd.h> |
| |
| |
| using namespace std; |
| |
| #include "device.h" |
| #include "alsa.h" |
| #include "../parameters/parameters.h" |
| |
| #include "../devlist.h" |
| |
| #include <string.h> |
| #include <unistd.h> |
| |
| alsa::alsa(char *_name, char *path): device() |
| { |
| ifstream file; |
| |
| char devname[4096]; |
| char model[4096]; |
| char vendor[4096]; |
| end_active = 0; |
| start_active = 0; |
| end_inactive = 0; |
| start_inactive = 0; |
| strncpy(sysfs_path, path, sizeof(sysfs_path)); |
| |
| sprintf(devname, "alsa:%s", _name); |
| sprintf(humanname, "alsa:%s", _name); |
| strncpy(name, devname, sizeof(name)); |
| rindex = get_result_index(name); |
| |
| guilty[0] = 0; |
| model[0] = 0; |
| vendor[0] = 0; |
| sprintf(devname, "%s/modelname", path); |
| file.open(devname); |
| if (file) { |
| file.getline(model, 4096); |
| file.close(); |
| } |
| sprintf(devname, "%s/vendor_name", path); |
| file.open(devname); |
| if (file) { |
| file.getline(vendor, 4096); |
| file.close(); |
| } |
| if (strlen(model) && strlen(vendor)) |
| sprintf(humanname, _("Audio codec %s: %s (%s)"), name, model, vendor); |
| else if (strlen(model)) |
| sprintf(humanname, _("Audio codec %s: %s"), _name, model); |
| else if (strlen(vendor)) |
| sprintf(humanname, _("Audio codec %s: %s"), _name, vendor); |
| } |
| |
| void alsa::start_measurement(void) |
| { |
| char filename[4096]; |
| ifstream file; |
| |
| sprintf(filename, "%s/power_off_acct", sysfs_path); |
| try { |
| file.open(filename, ios::in); |
| if (file) { |
| file >> start_inactive; |
| } |
| file.close(); |
| sprintf(filename, "%s/power_on_acct", sysfs_path); |
| file.open(filename, ios::in); |
| |
| if (file) { |
| file >> start_active; |
| } |
| file.close(); |
| } |
| #ifndef DISABLE_TRYCATCH |
| catch (std::ios_base::failure &c) { |
| fprintf(stderr, "%s\n", c.what()); |
| } |
| #endif |
| |
| } |
| |
| void alsa::end_measurement(void) |
| { |
| char filename[4096]; |
| ifstream file; |
| double p; |
| |
| sprintf(filename, "%s/power_off_acct", sysfs_path); |
| try { |
| file.open(filename, ios::in); |
| if (file) { |
| file >> end_inactive; |
| } |
| file.close(); |
| sprintf(filename, "%s/power_on_acct", sysfs_path); |
| file.open(filename, ios::in); |
| |
| if (file) { |
| file >> end_active; |
| } |
| file.close(); |
| } |
| #ifndef DISABLE_TRYCATCH |
| catch (std::ios_base::failure &c) { |
| fprintf(stderr, "%s\n", c.what()); |
| } |
| #endif |
| |
| p = (end_active - start_active) / (0.001 + end_active + end_inactive - start_active - start_inactive) * 100.0; |
| report_utilization(name, p); |
| } |
| |
| |
| double alsa::utilization(void) |
| { |
| double p; |
| |
| p = (end_active - start_active) / (0.001 + end_active - start_active + end_inactive - start_inactive) * 100.0; |
| |
| return p; |
| } |
| |
| const char * alsa::device_name(void) |
| { |
| return name; |
| } |
| |
| void create_all_alsa(void) |
| { |
| struct dirent *entry; |
| DIR *dir; |
| char filename[4096]; |
| |
| dir = opendir("/sys/class/sound/card0/"); |
| if (!dir) |
| return; |
| while (1) { |
| class alsa *bl; |
| ofstream file; |
| entry = readdir(dir); |
| if (!entry) |
| break; |
| if (entry->d_name[0] == '.') |
| continue; |
| sprintf(filename, "/sys/class/sound/card0/%s/power_on_acct", entry->d_name); |
| |
| if (access(filename, R_OK) != 0) |
| continue; |
| |
| sprintf(filename, "/sys/class/sound/card0/%s", entry->d_name); |
| |
| bl = new class alsa(entry->d_name, filename); |
| all_devices.push_back(bl); |
| register_parameter("alsa-codec-power", 0.5); |
| } |
| closedir(dir); |
| |
| } |
| |
| |
| |
| double alsa::power_usage(struct result_bundle *result, struct parameter_bundle *bundle) |
| { |
| double power; |
| double factor; |
| double util; |
| static int index = 0; |
| |
| power = 0; |
| if (!index) |
| index = get_param_index("alsa-codec-power"); |
| |
| factor = get_parameter_value(index, bundle); |
| |
| util = get_result_value(rindex, result); |
| |
| power += util * factor / 100.0; |
| |
| return power; |
| } |
| |
| void alsa::register_power_with_devlist(struct result_bundle *results, struct parameter_bundle *bundle) |
| { |
| register_devpower(&name[7], power_usage(results, bundle), this); |
| } |
| |
| const char * alsa::human_name(void) |
| { |
| sprintf(temp_buf, "%s", humanname); |
| if (strlen(guilty) > 0) |
| sprintf(temp_buf, "%s (%s)", humanname, guilty); |
| return temp_buf; |
| } |