diff options
Diffstat (limited to 'src/tuning/bluetooth.cpp')
| -rw-r--r-- | src/tuning/bluetooth.cpp | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/src/tuning/bluetooth.cpp b/src/tuning/bluetooth.cpp new file mode 100644 index 0000000..2958849 --- /dev/null +++ b/src/tuning/bluetooth.cpp @@ -0,0 +1,228 @@ +/* + * 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 "tuning.h" +#include "tunable.h" +#include <unistd.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <utility> +#include <iostream> +#include <fstream> +#include <unistd.h> +#include <sys/types.h> +#include <dirent.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/ioctl.h> +#include <errno.h> + +#include "../lib.h" +#include "bluetooth.h" + +bt_tunable::bt_tunable(void) : tunable("", 1.0, _("Good"), _("Bad"), _("Unknown")) +{ + sprintf(desc, _("Bluetooth device interface status")); + pt_strcpy(toggle_bad, "/usr/sbin/hciconfig hci0 up &> /dev/null &"); + pt_strcpy(toggle_good, "/usr/sbin/hciconfig hci0 down &> /dev/null"); +} + + + +/* structure definitions copied from include/net/bluetooth/hci.h from the 2.6.20 kernel */ +#define HCIGETDEVINFO _IOR('H', 211, int) +#define BTPROTO_HCI 1 + +#define __u16 uint16_t +#define __u8 uint8_t +#define __u32 uint32_t + +typedef struct { + __u8 b[6]; +} __attribute__((packed)) bdaddr_t; + +struct hci_dev_stats { + __u32 err_rx; + __u32 err_tx; + __u32 cmd_tx; + __u32 evt_rx; + __u32 acl_tx; + __u32 acl_rx; + __u32 sco_tx; + __u32 sco_rx; + __u32 byte_rx; + __u32 byte_tx; +}; + + +struct hci_dev_info { + __u16 dev_id; + char name[8]; + + bdaddr_t bdaddr; + + __u32 flags; + __u8 type; + + __u8 features[8]; + + __u32 pkt_type; + __u32 link_policy; + __u32 link_mode; + + __u16 acl_mtu; + __u16 acl_pkts; + __u16 sco_mtu; + __u16 sco_pkts; + + struct hci_dev_stats stat; +}; + +static int previous_bytes = -1; +static time_t last_check_time = 0; +static int last_check_result; + +int bt_tunable::good_bad(void) +{ + struct hci_dev_info devinfo; + FILE *file = 0; + int fd; + int thisbytes = 0; + int ret; + int result = TUNE_GOOD; + + fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); + if (fd < 0) + return TUNE_GOOD; + + memset(&devinfo, 0, sizeof(devinfo)); + strcpy(devinfo.name, "hci0"); + ret = ioctl(fd, HCIGETDEVINFO, (void *) &devinfo); + if (ret < 0) + goto out; + + if ( (devinfo.flags & 1) == 0 && + access("/sys/module/hci_usb",F_OK)) /* interface down already */ + goto out; + + thisbytes += devinfo.stat.byte_rx; + thisbytes += devinfo.stat.byte_tx; + + /* device is active... so we need to leave it on */ + if (thisbytes != previous_bytes) + goto out; + + + /* this check is expensive.. only do it once per minute */ + if (time(NULL) - last_check_time > 60) { + last_check_result = TUNE_BAD; + /* now, also check for active connections */ + file = popen("/usr/bin/hcitool con 2> /dev/null", "r"); + if (file) { + char line[2048]; + /* first line is standard header */ + if (fgets(line, 2047, file) == NULL) + goto out; + memset(line, 0, 2048); + if (fgets(line, 2047, file) == NULL) { + result = last_check_result = TUNE_GOOD; + goto out; + } + + if (strlen(line) > 0) { + result = last_check_result = TUNE_GOOD; + goto out; + } + } + last_check_time = time(NULL); + }; + + result = last_check_result; + +out: + previous_bytes = thisbytes; + if (file) + pclose(file); + close(fd); + return result; +} + +void bt_tunable::toggle(void) +{ + int good; + good = good_bad(); + + if (good == TUNE_GOOD) { + if(system("/usr/sbin/hciconfig hci0 up &> /dev/null &")) + printf("System is not available\n"); + return; + } + if(system("/usr/sbin/hciconfig hci0 down &> /dev/null")) + printf("System is not available\n"); +} + +const char *bt_tunable::toggle_script(void) +{ + int good; + good = good_bad(); + + if (good == TUNE_GOOD) { + return toggle_bad; + } + return toggle_good; +} + + +void add_bt_tunable(void) +{ + struct hci_dev_info devinfo; + class bt_tunable *bt; + int fd; + int ret; + + /* first check if /sys/modules/bluetooth exists, if not, don't probe bluetooth because + it would trigger an autoload */ + +// if (access("/sys/module/bluetooth",F_OK)) +// return; + + + /* check if hci0 exists */ + fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI); + if (fd < 0) + return; + + memset(&devinfo, 0, sizeof(devinfo)); + strcpy(devinfo.name, "hci0"); + ret = ioctl(fd, HCIGETDEVINFO, (void *) &devinfo); + close(fd); + if (ret < 0) + return; + + + bt = new class bt_tunable(); + all_tunables.push_back(bt); +} |