1 /* 2 * Copyright (c) 2019 LK Trusty Authors. All Rights Reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining 5 * a copy of this software and associated documentation files 6 * (the "Software"), to deal in the Software without restriction, 7 * including without limitation the rights to use, copy, modify, merge, 8 * publish, distribute, sublicense, and/or sell copies of the Software, 9 * and to permit persons to whom the Software is furnished to do so, 10 * subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #pragma once 25 #include <virtio.h> 26 27 /** 28 * virtio_probe_console() - Probe Virtio console device 29 * 30 * Return: Base address of the Virtio device specific configuration structure 31 */ 32 struct virtio_config* virtio_probe_console(void); 33 34 /** 35 * virtio_or_status() - Set status bit of Virtio device 36 * @vio: The Virtio device to set feature bit on 37 * @flags: The feature bit to be set 38 */ 39 void virtio_or_status(struct virtio_config* vio, uint32_t flags); 40 41 /** 42 * virtio_get_status() - Get status of Virtio device 43 * @vio: The Virtio device to get status from 44 * 45 * Return: Status of the Virtio device 46 */ 47 uint32_t virtio_get_status(struct virtio_config* vio); 48 49 /** 50 * virtio_reset_device() - Reset Virtio device 51 * @vio: The Virtio device to be reset 52 */ 53 void virtio_reset_device(struct virtio_config* vio); 54 55 /** 56 * virtio_set_guest_page_size() - Set guest page size of Virtio device 57 * @vio: The Virtio device to set guest page size on 58 * @size: Size of guest page 59 */ 60 void virtio_set_guest_page_size(struct virtio_config* vio, uint32_t size); 61