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