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|
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <Ecore.h>
#include <Eeze.h>
#include "eeze_udev_private.h"
/* opaque */
struct Eeze_Udev_Watch
{
_udev_monitor *mon;
Ecore_Fd_Handler *handler;
Eeze_Udev_Type type;
void *data;
};
/* private */
struct _store_data
{
void (*func)(const char *,
Eeze_Udev_Event,
void *,
Eeze_Udev_Watch *);
void *data;
Eeze_Udev_Event event;
_udev_monitor *mon;
Eeze_Udev_Type type;
Eeze_Udev_Watch *watch;
};
/* private function to further filter watch results based on Eeze_Udev_Type
* specified; helpful for new udev versions, but absolutely required for
* old udev, which does not implement filtering in device monitors.
*/
static Eina_Bool
_get_syspath_from_watch(void *data,
Ecore_Fd_Handler *fd_handler)
{
struct _store_data *store = data;
_udev_device *device = NULL, *parent, *tmpdev;
const char *ret, *test;
Eeze_Udev_Watch_Cb func = store->func;
void *sdata = store->data;
Eeze_Udev_Watch *watch = store->watch;
int event = 0;
if (!ecore_main_fd_handler_active_get(fd_handler, ECORE_FD_READ))
return EINA_TRUE;
device = udev_monitor_receive_device(store->mon);
if (!device)
return EINA_TRUE;
if ((!(test = udev_device_get_action(device)))
|| (!(ret = udev_device_get_syspath(device))))
goto error;
if (store->event)
{
if (!strcmp(test, "add"))
{
if ((store->event != EEZE_UDEV_EVENT_NONE) &&
((store->event & EEZE_UDEV_EVENT_ADD) != EEZE_UDEV_EVENT_ADD))
goto error;
event |= EEZE_UDEV_EVENT_ADD;
}
else if (!strcmp(test, "remove"))
{
if ((store->event != EEZE_UDEV_EVENT_NONE) &&
((store->event & EEZE_UDEV_EVENT_REMOVE) != EEZE_UDEV_EVENT_REMOVE))
goto error;
event |= EEZE_UDEV_EVENT_REMOVE;
}
else if (!strcmp(test, "change"))
{
if ((store->event != EEZE_UDEV_EVENT_NONE) &&
((store->event & EEZE_UDEV_EVENT_CHANGE) != EEZE_UDEV_EVENT_CHANGE))
goto error;
event |= EEZE_UDEV_EVENT_CHANGE;
}
else if (!strcmp(test, "online"))
{
if ((store->event != EEZE_UDEV_EVENT_NONE) &&
((store->event & EEZE_UDEV_EVENT_ONLINE) != EEZE_UDEV_EVENT_ONLINE))
goto error;
event |= EEZE_UDEV_EVENT_ONLINE;
}
else
{
if ((store->event != EEZE_UDEV_EVENT_NONE) &&
((store->event & EEZE_UDEV_EVENT_OFFLINE) != EEZE_UDEV_EVENT_OFFLINE))
goto error;
event |= EEZE_UDEV_EVENT_OFFLINE;
}
}
if ((event & EEZE_UDEV_EVENT_OFFLINE) || (event & EEZE_UDEV_EVENT_REMOVE))
goto out;
switch (store->type)
{
case EEZE_UDEV_TYPE_KEYBOARD:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "input")))
goto error;
test = udev_device_get_property_value(device, "ID_CLASS");
if ((_walk_parents_test_attr(device, "bInterfaceProtocol", "01"))
|| ((test) && (!strcmp(test, "kbd"))))
break;
goto error;
#endif
if ((!udev_device_get_property_value(device, "ID_INPUT_KEYBOARD")) &&
(!udev_device_get_property_value(device, "ID_INPUT_KEY")))
goto error;
break;
case EEZE_UDEV_TYPE_MOUSE:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "input")))
goto error;
test = udev_device_get_property_value(device, "ID_CLASS");
if ((_walk_parents_test_attr(device, "bInterfaceProtocol", "02"))
|| ((test) && (!strcmp(test, "mouse"))))
break;
goto error;
#endif
if (!udev_device_get_property_value(device, "ID_INPUT_MOUSE"))
goto error;
break;
case EEZE_UDEV_TYPE_TOUCHPAD:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "input")))
goto error;
if (_walk_parents_test_attr(device, "resolution", NULL))
break;
goto error;
#endif
if (!udev_device_get_property_value(device, "ID_INPUT_TOUCHPAD"))
goto error;
break;
case EEZE_UDEV_TYPE_JOYSTICK:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "input")))
goto error;
test = udev_device_get_property_value(device, "ID_CLASS");
if ((test) && (!strcmp(test, "joystick")))
break;
goto error;
#endif
if (!udev_device_get_property_value(device, "ID_INPUT_JOYSTICK"))
goto error;
break;
case EEZE_UDEV_TYPE_DRIVE_MOUNTABLE:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "block")))
goto error;
#endif
if (!(test = (udev_device_get_property_value(device, "ID_FS_USAGE"))) ||
(strcmp("filesystem", test)))
{
if (event & EEZE_UDEV_EVENT_CHANGE)
{
test = udev_device_get_sysname(device);
if (!test) goto error;
if (!strncmp(test, "loop", 4)) break;
}
goto error;
}
{
int devcheck;
devcheck = open(udev_device_get_devnode(device), O_RDONLY);
if (devcheck < 0) goto error;
close(devcheck);
}
break;
case EEZE_UDEV_TYPE_DRIVE_INTERNAL:
if (udev_device_get_property_value(device, "ID_FS_USAGE")) goto error;
test = udev_device_get_sysattr_value(device, "removable");
if (test && test[0] == '1') goto error;
test = udev_device_get_property_value(device, "ID_BUS");
if ((!test) || strcmp(test, "ata")) goto error;
test = udev_device_get_property_value(device, "ID_TYPE");
if (!(event & EEZE_UDEV_EVENT_CHANGE) && ((!test) || strcmp(test, "disk"))) goto error;
break;
case EEZE_UDEV_TYPE_DRIVE_REMOVABLE:
if (udev_device_get_sysattr_value(device, "partition")) goto error;
test = udev_device_get_sysattr_value(device, "removable");
if ((!test) || (test[0] == '0')) goto error;
test = udev_device_get_property_value(device, "ID_TYPE");
if ((!test) || strcmp(test, "disk")) goto error;
break;
case EEZE_UDEV_TYPE_DRIVE_CDROM:
if (!udev_device_get_property_value(device, "ID_CDROM"))
goto error;
break;
case EEZE_UDEV_TYPE_POWER_AC:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "power_supply")))
goto error;
#endif
test = udev_device_get_property_value(device, "POWER_SUPPLY_ONLINE");
if (!test) goto error;
break;
case EEZE_UDEV_TYPE_POWER_BAT:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "power_supply")))
goto error;
#endif
test = udev_device_get_property_value(device, "POWER_SUPPLY_PRESENT");
if ((!test) || (strcmp(test, "1"))) goto error;
break;
case EEZE_UDEV_TYPE_NET:
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "net")))
goto error;
#endif
break;
case EEZE_UDEV_TYPE_IS_IT_HOT_OR_IS_IT_COLD_SENSOR:
{
Eina_Bool one, two;
const char *t;
#ifdef OLD_UDEV_RRRRRRRRRRRRRR
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "hwmon")))
goto error;
#endif /* have to do stuff up here since we need info from the parent */
one = _walk_parents_test_attr(device, "temp1_input", NULL);
two = _walk_parents_test_attr(device, "temp2_input", NULL);
if ((!one) && (!two)) goto error;
t = one ? "temp1_input" : "temp2_input";
/* if device is not the one which has the temp input, we must go up the chain */
if (!udev_device_get_sysattr_value(device, t))
{
for (parent = udev_device_get_parent(device); parent; parent = udev_device_get_parent(parent)) /*check for parent */
if (udev_device_get_sysattr_value(parent, t))
{
tmpdev = device;
if (!(device = _copy_device(parent)))
goto error;
udev_device_unref(tmpdev);
break;
}
}
break;
}
case EEZE_UDEV_TYPE_V4L:
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "video4linux")))
goto error;
break;
case EEZE_UDEV_TYPE_BLUETOOTH:
if ((!(test = udev_device_get_subsystem(device)))
|| (strcmp(test, "bluetooth")))
goto error;
break;
default:
break;
}
out:
(*func)(eina_stringshare_add(ret), event, sdata, watch);
error:
if (device)
udev_device_unref(device);
return EINA_TRUE;
}
EAPI Eeze_Udev_Watch *
eeze_udev_watch_add(Eeze_Udev_Type type,
int event,
Eeze_Udev_Watch_Cb cb,
void *user_data)
{
_udev_monitor *mon = NULL;
int fd;
Ecore_Fd_Handler *handler;
Eeze_Udev_Watch *watch = NULL;
struct _store_data *store = NULL;
if (!(store = calloc(1, sizeof(struct _store_data))))
return NULL;
if (!(watch = malloc(sizeof(Eeze_Udev_Watch))))
goto error;
if (!(mon = udev_monitor_new_from_netlink(udev, "udev")))
goto error;
#ifndef OLD_UDEV_RRRRRRRRRRRRRR
switch (type)
{
case EEZE_UDEV_TYPE_JOYSTICK:
case EEZE_UDEV_TYPE_KEYBOARD:
case EEZE_UDEV_TYPE_MOUSE:
case EEZE_UDEV_TYPE_TOUCHPAD:
udev_monitor_filter_add_match_subsystem_devtype(mon, "input", NULL);
break;
case EEZE_UDEV_TYPE_DRIVE_MOUNTABLE:
case EEZE_UDEV_TYPE_DRIVE_INTERNAL:
udev_monitor_filter_add_match_subsystem_devtype(mon, "block", NULL);
break;
case EEZE_UDEV_TYPE_DRIVE_REMOVABLE:
case EEZE_UDEV_TYPE_DRIVE_CDROM:
break;
case EEZE_UDEV_TYPE_POWER_AC:
case EEZE_UDEV_TYPE_POWER_BAT:
udev_monitor_filter_add_match_subsystem_devtype(mon, "power_supply",
NULL);
break;
case EEZE_UDEV_TYPE_NET:
udev_monitor_filter_add_match_subsystem_devtype(mon, "net", NULL);
break;
case EEZE_UDEV_TYPE_IS_IT_HOT_OR_IS_IT_COLD_SENSOR:
udev_monitor_filter_add_match_subsystem_devtype(mon, "hwmon", NULL);
break;
/*
case EEZE_UDEV_TYPE_ANDROID:
udev_monitor_filter_add_match_subsystem_devtype(mon, "input", "usb_interface");
break;
*/
case EEZE_UDEV_TYPE_V4L:
udev_monitor_filter_add_match_subsystem_devtype(mon, "video4linux",
NULL);
break;
case EEZE_UDEV_TYPE_BLUETOOTH:
udev_monitor_filter_add_match_subsystem_devtype(mon, "bluetooth",
NULL);
break;
default:
break;
}
#endif
if (udev_monitor_enable_receiving(mon))
goto error;
fd = udev_monitor_get_fd(mon);
store->func = cb;
store->data = user_data;
store->mon = mon;
store->type = type;
store->watch = watch;
store->event = event;
if (!(handler = ecore_main_fd_handler_add(fd, ECORE_FD_READ,
_get_syspath_from_watch, store, NULL, NULL)))
goto error;
watch->mon = mon;
watch->handler = handler;
return watch;
error:
if (store)
free(store);
if (watch)
free(watch);
if (mon)
udev_monitor_unref(mon);
ERR("Could not create watch!");
return NULL;
}
EAPI void *
eeze_udev_watch_del(Eeze_Udev_Watch *watch)
{
struct _store_data *sdata;
void *ret = NULL;
if ((!watch) || (!watch->mon) || (!watch->handler))
return NULL;
sdata = ecore_main_fd_handler_del(watch->handler);
udev_monitor_unref(watch->mon);
if (sdata)
{
ret = sdata->data;
free(sdata);
}
free(watch);
return ret;
}
|
