162bc3cce7
Add snapshot of virtio clock driver from msm-4.14.
This snapshot is taken as of msm-4.14 commit 703333543986
("clk: qcom: Add pcie1 virtio clocks for sa8155").
Change-Id: I73f7480e28bd7d5401e0b2293aad6c28dc25964c
Signed-off-by: Zhiqiang Tu <ztu@codeaurora.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/* Copyright (c) 2019-2020, The Linux Foundation. All rights reserved. */
|
|
|
|
#ifndef _LINUX_VIRTIO_CLK_H
|
|
#define _LINUX_VIRTIO_CLK_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/virtio_ids.h>
|
|
#include <linux/virtio_config.h>
|
|
#include <linux/virtio_types.h>
|
|
|
|
/* Virtio ID of clock */
|
|
#define VIRTIO_ID_CLOCK 30 /* virtio clock */
|
|
|
|
/* Feature bits */
|
|
#define VIRTIO_CLK_F_RESET 1 /* Support reset */
|
|
#define VIRTIO_CLK_F_NAME 2 /* Support clock name */
|
|
|
|
/* Configuration layout */
|
|
struct virtio_clk_config {
|
|
__u32 num_clks;
|
|
__u32 num_resets;
|
|
__u8 name[20];
|
|
} __packed;
|
|
|
|
/* Request/response message format */
|
|
struct virtio_clk_msg {
|
|
u8 name[40];
|
|
__virtio32 id;
|
|
__virtio32 type;
|
|
__virtio32 result;
|
|
__virtio32 data[4];
|
|
};
|
|
|
|
/* Request type */
|
|
#define VIRTIO_CLK_T_ENABLE 0
|
|
#define VIRTIO_CLK_T_DISABLE 1
|
|
#define VIRTIO_CLK_T_SET_RATE 2
|
|
#define VIRTIO_CLK_T_GET_RATE 3
|
|
#define VIRTIO_CLK_T_ROUND_RATE 4
|
|
#define VIRTIO_CLK_T_RESET 5
|
|
#define VIRTIO_CLK_T_SET_FLAGS 6
|
|
|
|
#endif /* _LINUX_VIRTIO_CLK_H */
|