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50 lines
1.3 KiB
50 lines
1.3 KiB
/* Copyright (c) 2019, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _LINUX_VIRTIO_CLK_H
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#define _LINUX_VIRTIO_CLK_H
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#include <linux/types.h>
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#include <linux/virtio_ids.h>
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#include <linux/virtio_config.h>
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#include <linux/virtio_types.h>
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/* Feature bits */
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#define VIRTIO_CLK_F_RESET 1 /* Support reset */
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#define VIRTIO_CLK_F_NAME 2 /* Support clock name */
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/* Configuration layout */
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struct virtio_clk_config {
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__u32 num_clks;
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__u32 num_resets;
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__u8 name[20];
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} __packed;
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/* Request/response message format */
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struct virtio_clk_msg {
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u8 name[40];
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__virtio32 id;
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__virtio32 type;
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__virtio32 result;
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__virtio32 data[4];
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};
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/* Request type */
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#define VIRTIO_CLK_T_ENABLE 0
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#define VIRTIO_CLK_T_DISABLE 1
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#define VIRTIO_CLK_T_SET_RATE 2
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#define VIRTIO_CLK_T_GET_RATE 3
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#define VIRTIO_CLK_T_ROUND_RATE 4
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#define VIRTIO_CLK_T_RESET 5
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#define VIRTIO_CLK_T_SET_FLAGS 6
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#endif /* _LINUX_VIRTIO_CLK_H */
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