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pci: add ioctl for userspace

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which is same as OpenBSD:
https://github.com/openbsd/src/blob/master/sys/sys/pciio.h

Signed-off-by: lipengfei28 <lipengfei28@xiaomi.com>
This commit is contained in:
lipengfei28
2024-05-23 16:48:03 +08:00
committed by Xiang Xiao
parent dba7700813
commit b70922cb24
3 changed files with 331 additions and 0 deletions
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77
include/sys/pciio.h Normal file
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/****************************************************************************
* include/sys/pciio.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __INCLUDE_SYS_PCIIO_H
#define __INCLUDE_SYS_PCIIO_H
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/fs/ioctl.h>
#include <stdint.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define PCIOCREAD _PCIIOC(1)
#define PCIOCWRITE _PCIIOC(2)
#define PCIOCGETROMLEN _PCIIOC(3)
#define PCIOCGETROM _PCIIOC(4)
#define PCIOCREADMASK _PCIIOC(5)
#define PCIOCGETVPD _PCIIOC(6)
/****************************************************************************
* Public Type Declarations
****************************************************************************/
struct pcisel
{
uint8_t pc_domain;
uint8_t pc_bus;
uint8_t pc_dev;
uint8_t pc_func;
};
struct pci_io
{
struct pcisel pi_sel;
int pi_reg;
int pi_width;
uint32_t pi_data;
};
struct pci_rom
{
struct pcisel pr_sel;
int pr_romlen;
FAR char *pr_rom;
};
struct pci_vpd_req
{
struct pcisel pv_sel;
int pv_offset;
int pv_count;
FAR uint32_t *pv_data;
};
#endif /* __INCLUDE_SYS_PCIIO_H */