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fpi-device: Add FpiDeviceFeature flags to FpDeviceClass 

Allows drivers to define more fine grained features for devices, not
strictly depending on assumptions we can make depending on the
implemented vfuncs.

We keep this per class but could be in theory moved to each instance.

In any case, added an utility function to initialize it in the way we
can ensure that we've a consistent way for setting them across all the
devices.
This commit is contained in:
Marco Trevisan (Treviño) 2020-12-08 04:16:31 +01:00
parent 355957919e
commit 8d545a0b95
12 changed files with 272 additions and 14 deletions
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2
doc/libfprint-2-sections.txt
View File

@ -131,6 +131,7 @@ fpi_get_driver_types
FpDeviceClass
FpTimeoutFunc
FpiDeviceAction
FpiDeviceFeature
FpIdEntry
FpiDeviceUdevSubtypeFlags
fpi_device_get_usb_device
@ -168,6 +169,7 @@ fpi_device_enroll_progress
fpi_device_verify_report
fpi_device_identify_report
fpi_device_list_complete
fpi_device_class_auto_initialize_features
</SECTION>
<SECTION>

3
libfprint/drivers/goodixmoc/goodix.c
View File

@ -1579,4 +1579,7 @@ fpi_device_goodixmoc_class_init (FpiDeviceGoodixMocClass *klass)
dev_class->cancel = gx_fp_cancel;
dev_class->verify = gx_fp_verify_identify;
dev_class->identify = gx_fp_verify_identify;
fpi_device_class_auto_initialize_features (dev_class);
dev_class->features |= FPI_DEVICE_FEATURE_DUPLICATES_CHECK;
}

2
libfprint/drivers/synaptics/synaptics.c
View File

@ -1405,4 +1405,6 @@ fpi_device_synaptics_class_init (FpiDeviceSynapticsClass *klass)
dev_class->delete = delete_print;
dev_class->cancel = cancel;
dev_class->list = list;
fpi_device_class_auto_initialize_features (dev_class);
}

2
libfprint/drivers/upekts.c
View File

@ -1555,4 +1555,6 @@ fpi_device_upekts_class_init (FpiDeviceUpektsClass *klass)
dev_class->verify = verify;
dev_class->enroll = enroll;
/* dev_class->cancel = cancel; */
fpi_device_class_auto_initialize_features (dev_class);
}

3
libfprint/drivers/virtual-device-storage.c
View File

@ -244,4 +244,7 @@ fpi_device_virtual_device_storage_class_init (FpDeviceVirtualDeviceStorageClass
dev_class->identify = dev_identify;
dev_class->list = dev_list;
dev_class->delete = dev_delete;
fpi_device_class_auto_initialize_features (dev_class);
dev_class->features |= FPI_DEVICE_FEATURE_DUPLICATES_CHECK;
}

2
libfprint/drivers/virtual-device.c
View File

@ -776,4 +776,6 @@ fpi_device_virtual_device_class_init (FpDeviceVirtualDeviceClass *klass)
dev_class->verify = dev_verify;
dev_class->enroll = dev_enroll;
dev_class->cancel = dev_cancel;
fpi_device_class_auto_initialize_features (dev_class);
}

13
libfprint/fp-device.c
View File

@ -140,6 +140,8 @@ fp_device_constructed (GObject *object)
FpDeviceClass *cls = FP_DEVICE_GET_CLASS (self);
FpDevicePrivate *priv = fp_device_get_instance_private (self);
g_assert (cls->features != FPI_DEVICE_FEATURE_NONE);
priv->type = cls->type;
if (cls->nr_enroll_stages)
priv->nr_enroll_stages = cls->nr_enroll_stages;
@ -627,7 +629,7 @@ fp_device_supports_identify (FpDevice *device)
g_return_val_if_fail (FP_IS_DEVICE (device), FALSE);
return cls->identify != NULL;
return cls->identify && !!(cls->features & FPI_DEVICE_FEATURE_IDENTIFY);
}
/**
@ -645,7 +647,7 @@ fp_device_supports_capture (FpDevice *device)
g_return_val_if_fail (FP_IS_DEVICE (device), FALSE);
return cls->capture != NULL;
return cls->capture && !!(cls->features & FPI_DEVICE_FEATURE_CAPTURE);
}
/**
@ -664,7 +666,7 @@ fp_device_has_storage (FpDevice *device)
g_return_val_if_fail (FP_IS_DEVICE (device), FALSE);
return cls->list != NULL;
return !!(cls->features & FPI_DEVICE_FEATURE_STORAGE);
}
/**
@ -1254,6 +1256,7 @@ fp_device_delete_print (FpDevice *device,
{
g_autoptr(GTask) task = NULL;
FpDevicePrivate *priv = fp_device_get_instance_private (device);
FpDeviceClass *cls = FP_DEVICE_GET_CLASS (device);
task = g_task_new (device, cancellable, callback, user_data);
if (g_task_return_error_if_cancelled (task))
@ -1274,7 +1277,7 @@ fp_device_delete_print (FpDevice *device,
}
/* Succeed immediately if delete is not implemented. */
if (!FP_DEVICE_GET_CLASS (device)->delete)
if (!cls->delete || !(cls->features & FPI_DEVICE_FEATURE_STORAGE_DELETE))
{
g_task_return_boolean (task, TRUE);
return;
@ -1288,7 +1291,7 @@ fp_device_delete_print (FpDevice *device,
g_object_ref (enrolled_print),
g_object_unref);
FP_DEVICE_GET_CLASS (device)->delete (device);
cls->delete (device);
}
/**

2
libfprint/fp-image-device.c
View File

@ -220,6 +220,8 @@ fp_image_device_class_init (FpImageDeviceClass *klass)
fp_device_class->cancel = fp_image_device_cancel_action;
fpi_device_class_auto_initialize_features (fp_device_class);
/* Default implementations */
klass->activate = fp_image_device_default_activate;
klass->deactivate = fp_image_device_default_deactivate;

34
libfprint/fpi-device.c
View File

@ -46,6 +46,40 @@ fp_device_get_instance_private (FpDevice *self)
g_type_class_get_instance_private_offset (dev_class));
}
/**
* fpi_device_class_auto_initialize_features:
*
* Initializes the #FpDeviceClass @features flags checking what device vfuncs
* are implemented.
* Drivers should call this at the end of the class initialization.
*/
void
fpi_device_class_auto_initialize_features (FpDeviceClass *device_class)
{
g_return_if_fail (FP_IS_DEVICE_CLASS (device_class));
if (device_class->capture)
device_class->features |= FPI_DEVICE_FEATURE_CAPTURE;
if (device_class->verify)
device_class->features |= FPI_DEVICE_FEATURE_VERIFY;
if (device_class->identify)
device_class->features |= FPI_DEVICE_FEATURE_IDENTIFY;
if (device_class->list)
{
device_class->features |= FPI_DEVICE_FEATURE_STORAGE;
device_class->features |= FPI_DEVICE_FEATURE_STORAGE_LIST;
}
if (device_class->delete)
{
device_class->features |= FPI_DEVICE_FEATURE_STORAGE;
device_class->features |= FPI_DEVICE_FEATURE_STORAGE_DELETE;
}
}
/**
* fpi_device_retry_new:
* @error: The #FpDeviceRetry error value describing the issue

29
libfprint/fpi-device.h
View File

@ -69,6 +69,30 @@ struct _FpIdEntry
guint64 driver_data;
};
/**
* FpiDeviceFeature:
* @FPI_DEVICE_FEATURE_NONE: Device does not support any feature
* @FPI_DEVICE_FEATURE_CAPTURE: Supports image capture
* @FPI_DEVICE_FEATURE_IDENTIFY: Supports finger identification
* @FPI_DEVICE_FEATURE_VERIFY: Supports finger verification
* @FPI_DEVICE_FEATURE_STORAGE: Device has a persistent storage
* @FPI_DEVICE_FEATURE_STORAGE_LIST: Supports listing the storage templates
* @FPI_DEVICE_FEATURE_STORAGE_DELETE: Supports deleting stored templates
* @FPI_DEVICE_FEATURE_STORAGE_CLEAR: Supports clearing the whole storage
* @FPI_DEVICE_FEATURE_DUPLICATES_CHECK: Natively supports duplicates detection
*/
typedef enum /*< flags >*/ {
FPI_DEVICE_FEATURE_NONE = 0,
FPI_DEVICE_FEATURE_CAPTURE = 1 << 0,
FPI_DEVICE_FEATURE_IDENTIFY = 1 << 1,
FPI_DEVICE_FEATURE_VERIFY = 1 << 2,
FPI_DEVICE_FEATURE_STORAGE = 1 << 3,
FPI_DEVICE_FEATURE_STORAGE_LIST = 1 << 4,
FPI_DEVICE_FEATURE_STORAGE_DELETE = 1 << 5,
FPI_DEVICE_FEATURE_STORAGE_CLEAR = 1 << 6,
FPI_DEVICE_FEATURE_DUPLICATES_CHECK = 1 << 7,
} FpiDeviceFeature;
/**
* FpDeviceClass:
* @id: ID string for the driver. Should be a valid C identifier and should
@ -76,6 +100,8 @@ struct _FpIdEntry
* @full_name: Human readable description of the driver
* @type: The type of driver
* @id_table: The table of IDs to bind the driver to
* @features: The features the device supports, it can be initialized using
* fpi_device_class_auto_initialize_features() on @class_init.
* @nr_enroll_stages: The number of enroll stages supported devices need; use
* fpi_device_set_nr_enroll_stages() from @probe if this is dynamic.
* @scan_type: The scan type of supported devices; use
@ -133,6 +159,7 @@ struct _FpDeviceClass
const gchar *full_name;
FpDeviceType type;
const FpIdEntry *id_table;
FpiDeviceFeature features;
/* Defaults for device properties */
gint nr_enroll_stages;
@ -153,6 +180,8 @@ struct _FpDeviceClass
void (*cancel) (FpDevice *device);
};
void fpi_device_class_auto_initialize_features (FpDeviceClass *device_class);
/**
* FpTimeoutFunc:
* @device: The #FpDevice passed to fpi_device_add_timeout()

2
tests/test-device-fake.c
View File

@ -279,4 +279,6 @@ fpi_device_fake_class_init (FpiDeviceFakeClass *klass)
dev_class->list = fpi_device_fake_list;
dev_class->delete = fpi_device_fake_delete;
dev_class->cancel = fpi_device_fake_cancel;
fpi_device_class_auto_initialize_features (dev_class);
}

192
tests/test-fpi-device.c
View File

@ -506,6 +506,175 @@ test_driver_get_driver_data (void)
g_assert_cmpuint (fpi_device_get_driver_data (device), ==, driver_data);
}
static void
test_driver_initial_features (void)
{
g_autoptr(FpDevice) device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
FpDeviceClass *dev_class = FP_DEVICE_GET_CLASS (device);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_none (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->capture = NULL;
dev_class->verify = NULL;
dev_class->identify = NULL;
dev_class->delete = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, ==, FPI_DEVICE_FEATURE_NONE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_capture (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->capture = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_verify (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->verify = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_identify (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->identify = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_storage (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->delete = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_list (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
test_driver_initial_features_no_delete (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
dev_class->list = NULL;
dev_class->features = FPI_DEVICE_FEATURE_NONE;
fpi_device_class_auto_initialize_features (dev_class);
g_assert_cmpuint (dev_class->features, !=, FPI_DEVICE_FEATURE_NONE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_CAPTURE);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_IDENTIFY);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_VERIFY);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_DUPLICATES_CHECK);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_LIST);
g_assert_true (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_DELETE);
g_assert_false (dev_class->features & FPI_DEVICE_FEATURE_STORAGE_CLEAR);
}
static void
on_driver_probe_async (GObject *initable, GAsyncResult *res, gpointer user_data)
{
@ -1311,7 +1480,7 @@ test_driver_do_not_support_identify (void)
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
g_autoptr(FpDevice) device = NULL;
dev_class->identify = NULL;
dev_class->features &= ~FPI_DEVICE_FEATURE_IDENTIFY;
device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
g_assert_false (fp_device_supports_identify (device));
@ -1639,6 +1808,7 @@ test_driver_supports_capture (void)
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
g_autoptr(FpDevice) device = NULL;
dev_class->features |= FPI_DEVICE_FEATURE_CAPTURE;
dev_class->capture = fake_device_stub_capture;
device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
@ -1651,6 +1821,7 @@ test_driver_do_not_support_capture (void)
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
g_autoptr(FpDevice) device = NULL;
dev_class->features &= ~FPI_DEVICE_FEATURE_CAPTURE;
dev_class->capture = NULL;
device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
@ -1695,18 +1866,13 @@ test_driver_capture_error (void)
g_assert_null (image);
}
static void
fake_device_stub_list (FpDevice *device)
{
}
static void
test_driver_has_storage (void)
{
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
g_autoptr(FpDevice) device = NULL;
dev_class->list = fake_device_stub_list;
dev_class->features |= FPI_DEVICE_FEATURE_STORAGE;
device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
g_assert_true (fp_device_has_storage (device));
@ -1718,7 +1884,7 @@ test_driver_has_not_storage (void)
g_autoptr(FpAutoResetClass) dev_class = auto_reset_device_class ();
g_autoptr(FpDevice) device = NULL;
dev_class->list = NULL;
dev_class->features &= ~FPI_DEVICE_FEATURE_STORAGE;
device = g_object_new (FPI_TYPE_DEVICE_FAKE, NULL);
g_assert_false (fp_device_has_storage (device));
@ -1770,7 +1936,7 @@ test_driver_list_no_storage (void)
g_autoptr(GPtrArray) prints = NULL;
g_autoptr(GError) error = NULL;
dev_class->list = NULL;
dev_class->features &= ~FPI_DEVICE_FEATURE_STORAGE;
device = auto_close_fake_device_new ();
g_assert_false (fp_device_has_storage (device));
@ -2439,6 +2605,14 @@ main (int argc, char *argv[])
g_test_add_func ("/driver/get_usb_device", test_driver_get_usb_device);
g_test_add_func ("/driver/get_virtual_env", test_driver_get_virtual_env);
g_test_add_func ("/driver/get_driver_data", test_driver_get_driver_data);
g_test_add_func ("/driver/initial_features", test_driver_initial_features);
g_test_add_func ("/driver/initial_features/none", test_driver_initial_features_none);
g_test_add_func ("/driver/initial_features/no_capture", test_driver_initial_features_no_capture);
g_test_add_func ("/driver/initial_features/no_verify", test_driver_initial_features_no_verify);
g_test_add_func ("/driver/initial_features/no_identify", test_driver_initial_features_no_identify);
g_test_add_func ("/driver/initial_features/no_storage", test_driver_initial_features_no_storage);
g_test_add_func ("/driver/initial_features/no_list", test_driver_initial_features_no_list);
g_test_add_func ("/driver/initial_features/no_delete", test_driver_initial_features_no_delete);
g_test_add_func ("/driver/probe", test_driver_probe);
g_test_add_func ("/driver/probe/error", test_driver_probe_error);