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flashrom/tests/io_mock.h
Anastasia Klimchuk 05b59d2ca3 tests: Mock file i/o for linux_mtd and linux_spi tests
This patch adds an init-shutdown test for linux_mtd. Since
linux_mtd is using file i/o operations, those are added to the
framework and mocked.

Another driver linux_spi which is also using file i/o, got an upgrade
in this patch, and it is now reading max buffer size from sysfs (using
mocked file i/o).

A good side-effect is that linux_mtd is the first test for opaque
masters, which is great to have in preparation for a change like
CB:56103 but for opaque masters.

BUG=b:181803212
TEST=builds and ninja test

Change-Id: I73f0d6ff2ad5074add7a721ed3416230d3647e3f
Signed-off-by: Anastasia Klimchuk <aklm@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom/+/56413
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
2021-08-30 02:44:17 +00:00

96 lines
3.4 KiB
C

/*
* This file is part of the flashrom project.
*
* Copyright (c) 2021 Nico Huber <nico.h@gmx.de>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the author nor the names of its contributors
* may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _IO_MOCK_H_
#define _IO_MOCK_H_
/* Required for `FILE *` */
#include <stdio.h>
/* Define libusb symbols to avoid dependency on libusb.h */
struct libusb_device_handle;
typedef struct libusb_device_handle libusb_device_handle;
struct libusb_context;
typedef struct libusb_context libusb_context;
/* Define struct pci_dev to avoid dependency on pci.h */
struct pci_dev {
unsigned int device_id;
};
/* POSIX open() flags, avoiding dependency on fcntl.h */
#define O_RDONLY 0
#define O_WRONLY 1
#define O_RDWR 2
/* Linux I2C interface constants, avoiding linux/i2c-dev.h */
#define I2C_SLAVE 0x0703
struct io_mock {
void *state;
/* Port I/O */
void (*outb)(void *state, unsigned char value, unsigned short port);
unsigned char (*inb)(void *state, unsigned short port);
void (*outw)(void *state, unsigned short value, unsigned short port);
unsigned short (*inw)(void *state, unsigned short port);
void (*outl)(void *state, unsigned int value, unsigned short port);
unsigned int (*inl)(void *state, unsigned short port);
/* USB I/O */
int (*libusb_control_transfer)(void *state,
libusb_device_handle *devh,
uint8_t bmRequestType,
uint8_t bRequest,
uint16_t wValue,
uint16_t wIndex,
unsigned char *data,
uint16_t wLength,
unsigned int timeout);
/* POSIX File I/O */
int (*open)(void *state, const char *pathname, int flags);
int (*ioctl)(void *state, int fd, unsigned long request, va_list args);
int (*read)(void *state, int fd, void *buf, size_t sz);
int (*write)(void *state, int fd, const void *buf, size_t sz);
/* Standard I/O */
FILE* (*fopen)(void *state, const char *pathname, const char *mode);
char* (*fgets)(void *state, char *buf, int len, FILE *fp);
size_t (*fread)(void *state, void *buf, size_t size, size_t len, FILE *fp);
int (*fclose)(void *state, FILE *fp);
};
void io_mock_register(const struct io_mock *io);
#endif