ipc: Add support for xrt_device::is_form_factor_available

src/xrt/ipc/client/ipc_client_hmd.c

@@ -139,6 +139,17 @@ ipc_client_hmd_get_view_poses(struct xrt_device *xdev,
 	}
 }
 
+static bool
+ipc_client_hmd_is_form_factor_available(struct xrt_device *xdev, enum xrt_form_factor form_factor)
+{
+	struct ipc_client_hmd *ich = ipc_client_hmd(xdev);
+	bool available = false;
+	xrt_result_t r = ipc_call_device_is_form_factor_available(ich->ipc_c, ich->device_id, form_factor, &available);
+	if (r != XRT_SUCCESS) {
+		IPC_ERROR(ich->ipc_c, "Error calling is available!");
+	}
+	return available;
+}
 
 /*!
  * @public @memberof ipc_client_hmd
@@ -159,6 +170,7 @@ ipc_client_hmd_create(struct ipc_connection *ipc_c, struct xrt_tracking_origin *
 	ich->base.get_tracked_pose = ipc_client_hmd_get_tracked_pose;
 	ich->base.get_view_poses = ipc_client_hmd_get_view_poses;
 	ich->base.destroy = ipc_client_hmd_destroy;
+	ich->base.is_form_factor_available = ipc_client_hmd_is_form_factor_available;
 
 	// Start copying the information from the isdev.
 	ich->base.tracking_origin = xtrack;
@@ -213,6 +225,7 @@ ipc_client_hmd_create(struct ipc_connection *ipc_c, struct xrt_tracking_origin *
 	ich->base.device_type = isdev->device_type;
 	ich->base.hand_tracking_supported = isdev->hand_tracking_supported;
 	ich->base.force_feedback_supported = isdev->force_feedback_supported;
+	ich->base.form_factor_check_supported = isdev->form_factor_check_supported;
 
 	return &ich->base;
 }

src/xrt/ipc/server/ipc_server_handler.c

@@ -1155,3 +1155,16 @@ ipc_handle_device_set_output(volatile struct ipc_client_state *ics,
 
 	return XRT_SUCCESS;
 }
+
+xrt_result_t
+ipc_handle_device_is_form_factor_available(volatile struct ipc_client_state *ics,
+                                           uint32_t id,
+                                           enum xrt_form_factor form_factor,
+                                           bool *out_available)
+{
+	// To make the code a bit more readable.
+	uint32_t device_id = id;
+	struct xrt_device *xdev = get_xdev(ics, device_id);
+	*out_available = xrt_device_is_form_factor_available(xdev, form_factor);
+	return XRT_SUCCESS;
+}

src/xrt/ipc/server/ipc_server_process.c

@@ -288,6 +288,7 @@ init_shm(struct ipc_server *s)
 		isdev->device_type = xdev->device_type;
 		isdev->hand_tracking_supported = xdev->hand_tracking_supported;
 		isdev->force_feedback_supported = xdev->force_feedback_supported;
+		isdev->form_factor_check_supported = xdev->form_factor_check_supported;
 
 		// Is this a HMD?
 		if (xdev->hmd != NULL) {

src/xrt/ipc/shared/ipc_protocol.h

@@ -125,6 +125,7 @@ struct ipc_shared_device
 	bool position_tracking_supported;
 	bool hand_tracking_supported;
 	bool force_feedback_supported;
+	bool form_factor_check_supported;
 };
 
 /*!

src/xrt/ipc/shared/proto.json

@@ -252,5 +252,15 @@
 			{"name": "name", "type": "enum xrt_output_name"},
 			{"name": "value", "type": "union xrt_output_value"}
 		]
+	},
+
+	"device_is_form_factor_available": {
+		"in": [
+			{"name": "id", "type": "uint32_t"},
+			{"name": "form_factor", "type": "enum xrt_form_factor"}
+		],
+		"out": [
+			{"name": "available", "type": "bool"}
+		]
 	}
 }