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https://github.com/brain-hackers/u-boot-brain
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dd18e5d844
Add a sandbox I2C emulation device which emulates a real-time clock. The clock works off an offset from the current system time, and supports setting and getting the clock, as well as access to byte-width regisers in the RTC. It does not support changing the system time. This device can be used for testing the 'date' command on sandbox, as well as the RTC uclass. Signed-off-by: Simon Glass <sjg@chromium.org>
71 lines
2.0 KiB
C
71 lines
2.0 KiB
C
/*
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* Test-related constants for sandbox
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*
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* Copyright (c) 2014 Google, Inc
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __ASM_TEST_H
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#define __ASM_TEST_H
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/* The sandbox driver always permits an I2C device with this address */
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#define SANDBOX_I2C_TEST_ADDR 0x59
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#define SANDBOX_PCI_VENDOR_ID 0x1234
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#define SANDBOX_PCI_DEVICE_ID 0x5678
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#define SANDBOX_PCI_CLASS_CODE PCI_CLASS_CODE_COMM
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#define SANDBOX_PCI_CLASS_SUB_CODE PCI_CLASS_SUB_CODE_COMM_SERIAL
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/**
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* sandbox_i2c_set_test_mode() - set test mode for running unit tests
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*
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* See sandbox_i2c_xfer() for the behaviour changes.
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*
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* @bus: sandbox I2C bus to adjust
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* @test_mode: true to select test mode, false to run normally
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*/
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void sandbox_i2c_set_test_mode(struct udevice *bus, bool test_mode);
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enum sandbox_i2c_eeprom_test_mode {
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SIE_TEST_MODE_NONE,
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/* Permits read/write of only one byte per I2C transaction */
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SIE_TEST_MODE_SINGLE_BYTE,
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};
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void sandbox_i2c_eeprom_set_test_mode(struct udevice *dev,
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enum sandbox_i2c_eeprom_test_mode mode);
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void sandbox_i2c_eeprom_set_offset_len(struct udevice *dev, int offset_len);
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/*
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* sandbox_timer_add_offset()
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*
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* Allow tests to add to the time reported through lib/time.c functions
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* offset: number of milliseconds to advance the system time
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*/
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void sandbox_timer_add_offset(unsigned long offset);
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/**
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* sandbox_i2c_rtc_set_offset() - set the time offset from system/base time
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*
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* @dev: RTC device to adjust
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* @use_system_time: true to use system time, false to use @base_time
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* @offset: RTC offset from current system/base time (-1 for no
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* change)
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* @return old value of RTC offset
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*/
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long sandbox_i2c_rtc_set_offset(struct udevice *dev, bool use_system_time,
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int offset);
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/**
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* sandbox_i2c_rtc_get_set_base_time() - get and set the base time
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*
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* @dev: RTC device to adjust
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* @base_time: New base system time (set to -1 for no change)
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* @return old base time
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*/
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long sandbox_i2c_rtc_get_set_base_time(struct udevice *dev, long base_time);
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#endif
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