arch/sandbox/include/asm/test.h - filogic/uboot - Gitiles

 /* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Test-related constants for sandbox
  *
  * Copyright (c) 2014 Google, Inc
  */

 #ifndef __ASM_TEST_H
 #define __ASM_TEST_H

 #include <video.h>
 #include <pci_ids.h>

 struct unit_test_state;

 /* The sandbox driver always permits an I2C device with this address */
 #define SANDBOX_I2C_TEST_ADDR		0x59

 #define SANDBOX_PCI_VENDOR_ID		0x1234
 #define SANDBOX_PCI_SWAP_CASE_EMUL_ID	0x5678
 #define SANDBOX_PCI_PMC_EMUL_ID		0x5677
 #define SANDBOX_PCI_P2SB_EMUL_ID	0x5676
 #define SANDBOX_PCI_CLASS_CODE		(PCI_CLASS_COMMUNICATION_SERIAL >> 8)
 #define SANDBOX_PCI_CLASS_SUB_CODE	(PCI_CLASS_COMMUNICATION_SERIAL & 0xff)

 #define PCI_CAP_ID_PM_OFFSET		0x50
 #define PCI_CAP_ID_EXP_OFFSET		0x60
 #define PCI_CAP_ID_MSIX_OFFSET		0x70
 #define PCI_CAP_ID_EA_OFFSET		0x80

 #define PCI_EXT_CAP_ID_ERR_OFFSET	0x100
 #define PCI_EXT_CAP_ID_VC_OFFSET	0x200
 #define PCI_EXT_CAP_ID_DSN_OFFSET	0x300

 /* Useful for PCI_VDEVICE() macro */
 #define PCI_VENDOR_ID_SANDBOX		SANDBOX_PCI_VENDOR_ID
 #define SWAP_CASE_DRV_DATA		0x55aa

 #define SANDBOX_CLK_RATE		32768

 /* Macros used to test PCI EA capability structure */
 #define PCI_CAP_EA_BASE_LO0		0x00100000
 #define PCI_CAP_EA_BASE_LO1		0x00110000
 #define PCI_CAP_EA_BASE_LO2		0x00120000
 #define PCI_CAP_EA_BASE_LO4		0x00140000
 #define PCI_CAP_EA_BASE_HI2		0x00020000ULL
 #define PCI_CAP_EA_BASE_HI4		0x00040000ULL
 #define PCI_CAP_EA_SIZE_LO		0x0000ffff
 #define PCI_CAP_EA_SIZE_HI		0x00000010ULL
 #define PCI_EA_BAR2_MAGIC		0x72727272
 #define PCI_EA_BAR4_MAGIC		0x74747474

 enum {
 	SANDBOX_IRQN_PEND = 1,	/* Interrupt number for 'pending' test */
 };

 /* System controller driver data */
 enum {
 	SYSCON0		= 32,
 	SYSCON1,

 	SYSCON_COUNT
 };

 /**
  */
 enum cros_ec_test_t {
 	CROSECT_BREAK_HELLO	= BIT(1),
 	CROSECT_LID_OPEN	= BIT(2),
 };

 /**
  * sandbox_i2c_set_test_mode() - set test mode for running unit tests
  *
  * See sandbox_i2c_xfer() for the behaviour changes.
  *
  * @bus:	sandbox I2C bus to adjust
  * @test_mode:	true to select test mode, false to run normally
  */
 void sandbox_i2c_set_test_mode(struct udevice *bus, bool test_mode);

 enum sandbox_i2c_eeprom_test_mode {
 	SIE_TEST_MODE_NONE,
 	/* Permits read/write of only one byte per I2C transaction */
 	SIE_TEST_MODE_SINGLE_BYTE,
 };

 void sandbox_i2c_eeprom_set_test_mode(struct udevice *dev,
 				      enum sandbox_i2c_eeprom_test_mode mode);

 void sandbox_i2c_eeprom_set_offset_len(struct udevice *dev, int offset_len);

 void sandbox_i2c_eeprom_set_chip_addr_offset_mask(struct udevice *dev,
 						  uint mask);

 uint sanbox_i2c_eeprom_get_prev_addr(struct udevice *dev);

 uint sanbox_i2c_eeprom_get_prev_offset(struct udevice *dev);

 /**
  * sandbox_i2c_rtc_set_offset() - set the time offset from system/base time
  *
  * @dev:		RTC device to adjust
  * @use_system_time:	true to use system time, false to use @base_time
  * @offset:		RTC offset from current system/base time (-1 for no
  *			change)
  * Return: old value of RTC offset
  */
 long sandbox_i2c_rtc_set_offset(struct udevice *dev, bool use_system_time,
 				int offset);

 /**
  * sandbox_i2c_rtc_get_set_base_time() - get and set the base time
  *
  * @dev:		RTC device to adjust
  * @base_time:		New base system time (set to -1 for no change)
  * Return: old base time
  */
 long sandbox_i2c_rtc_get_set_base_time(struct udevice *dev, long base_time);

 int sandbox_usb_keyb_add_string(struct udevice *dev, const char *str);

 /**
  * sandbox_osd_get_mem() - get the internal memory of a sandbox OSD
  *
  * @dev:	OSD device for which to access the internal memory for
  * @buf:	pointer to buffer to receive the OSD memory data
  * @buflen:	length of buffer in bytes
  */
 int sandbox_osd_get_mem(struct udevice *dev, u8 *buf, size_t buflen);

 /**
  * sandbox_pwm_get_config() - get the PWM config for a channel
  *
  * @dev: Device to check
  * @channel: Channel number to check
  * @period_ns: Period of the PWM in nanoseconds
  * @duty_ns: Current duty cycle of the PWM in nanoseconds
  * @enable: true if the PWM is enabled
  * @polarity: true if the PWM polarity is active high
  * Return: 0 if OK, -ENOSPC if the PWM number is invalid
  */
 int sandbox_pwm_get_config(struct udevice *dev, uint channel, uint *period_nsp,
 			   uint *duty_nsp, bool *enablep, bool *polarityp);

 /**
  * sandbox_sf_set_block_protect() - Set the BP bits of the status register
  *
  * @dev: Device to update
  * @bp_mask: BP bits to set (bits 2:0, so a value of 0 to 7)
  */
 void sandbox_sf_set_block_protect(struct udevice *dev, int bp_mask);

 /**
  * sandbox_get_codec_params() - Read back codec parameters
  *
  * This reads back the parameters set by audio_codec_set_params() for the
  * sandbox audio driver. Arguments are as for that function.
  */
 void sandbox_get_codec_params(struct udevice *dev, int *interfacep, int *ratep,
 			      int *mclk_freqp, int *bits_per_samplep,
 			      uint *channelsp);

 /**
  * sandbox_get_i2s_sum() - Read back the sum of the audio data so far
  *
  * This data is provided to the sandbox driver by the I2S tx_data() method.
  *
  * @dev: Device to check
  * Return: sum of audio data
  */
 int sandbox_get_i2s_sum(struct udevice *dev);

 /**
  * sandbox_get_setup_called() - Returns the number of times setup(*) was called
  *
  * This is used in the sound test
  *
  * @dev: Device to check
  * Return: call count for the setup() method
  */
 int sandbox_get_setup_called(struct udevice *dev);

 /**
  * sandbox_get_sound_active() - Returns whether sound play is in progress
  *
  * Return: true if active, false if not
  */
 int sandbox_get_sound_active(struct udevice *dev);

 /**
  * sandbox_get_sound_count() - Read back the count of the sound data so far
  *
  * This data is provided to the sandbox driver by the sound play() method.
  *
  * @dev: Device to check
  * Return: count of audio data
  */
 int sandbox_get_sound_count(struct udevice *dev);

 /**
  * sandbox_get_sound_sum() - Read back the sum of the sound data so far
  *
  * This data is provided to the sandbox driver by the sound play() method.
  *
  * @dev: Device to check
  * Return: sum of audio data
  */
 int sandbox_get_sound_sum(struct udevice *dev);

 /**
  * sandbox_set_allow_beep() - Set whether the 'beep' interface is supported
  *
  * @dev: Device to update
  * @allow: true to allow the start_beep() method, false to disallow it
  */
 void sandbox_set_allow_beep(struct udevice *dev, bool allow);

 /**
  * sandbox_get_beep_frequency() - Get the frequency of the current beep
  *
  * @dev: Device to check
  * Return: frequency of beep, if there is an active beep, else 0
  */
 int sandbox_get_beep_frequency(struct udevice *dev);

 /**
  * sandbox_spi_get_speed() - Get current speed setting of a sandbox spi bus
  *
  * @dev: Device to check
  * Return: current bus speed
  */
 uint sandbox_spi_get_speed(struct udevice *dev);

 /**
  * sandbox_spi_get_mode() - Get current mode setting of a sandbox spi bus
  *
  * @dev: Device to check
  * Return: current mode
  */
 uint sandbox_spi_get_mode(struct udevice *dev);

 /**
  * sandbox_get_pch_spi_protect() - Get the PCI SPI protection status
  *
  * @dev: Device to check
  * Return: 0 if not protected, 1 if protected
  */
 int sandbox_get_pch_spi_protect(struct udevice *dev);

 /**
  * sandbox_get_pci_ep_irq_count() - Get the PCI EP IRQ count
  *
  * @dev: Device to check
  * Return: irq count
  */
 int sandbox_get_pci_ep_irq_count(struct udevice *dev);

 /**
  * sandbox_pci_read_bar() - Read the BAR value for a read_config operation
  *
  * This is used in PCI emulators to read a base address reset. This has special
  * rules because when the register is set to 0xffffffff it can be used to
  * discover the type and size of the BAR.
  *
  * @barval: Current value of the BAR
  * @type: Type of BAR (PCI_BASE_ADDRESS_SPACE_IO or
  *		PCI_BASE_ADDRESS_MEM_TYPE_32)
  * @size: Size of BAR in bytes
  * Return: BAR value to return from emulator
  */
 uint sandbox_pci_read_bar(u32 barval, int type, uint size);

 /**
  * sandbox_set_enable_memio() - Enable readl/writel() for sandbox
  *
  * Normally these I/O functions do nothing with sandbox. Certain tests need them
  * to work as for other architectures, so this function can be used to enable
  * them.
  *
  * @enable: true to enable, false to disable
  */
 void sandbox_set_enable_memio(bool enable);

 /**
  * sandbox_cros_ec_set_test_flags() - Set behaviour for testing purposes
  *
  * @dev: Device to check
  * @flags: Flags to control behaviour (CROSECT_...)
  */
 void sandbox_cros_ec_set_test_flags(struct udevice *dev, uint flags);

 /**
  * sandbox_cros_ec_get_pwm_duty() - Get EC PWM config for testing purposes
  *
  * @dev: Device to check
  * @index: PWM channel index
  * @duty: Current duty cycle in 0..EC_PWM_MAX_DUTY range.
  * Return: 0 if OK, -ENOSPC if the PWM number is invalid
  */
 int sandbox_cros_ec_get_pwm_duty(struct udevice *dev, uint index, uint *duty);

 /**
  * sandbox_sdl_set_bpp() - Set the depth of the sandbox display
  *
  * The device must not be active when this function is called. It activiates it
  * before returning.
  *
  * This updates the depth value and adjusts a few other settings accordingly.
  * It must be called before the display is probed.
  *
  * @dev: Device to adjust
  * @l2bpp: depth to set
  * Return: 0 if the device was already active, other error if it fails to probe
  * after the change
  */
 int sandbox_sdl_set_bpp(struct udevice *dev, enum video_log2_bpp l2bpp);

 /**
  * sandbox_set_fake_efi_mgr_dev() - Control EFI bootmgr producing valid bootflow
  *
  * This is only used for testing.
  *
  * @dev: efi_mgr bootmeth device
  * @fake_dev: true to produce a valid bootflow when requested, false to produce
  * an error
  */
 void sandbox_set_fake_efi_mgr_dev(struct udevice *dev, bool fake_dev);

 /**
  * sandbox_load_other_fdt() - load the 'other' FDT into the test state
  *
  * This copies the other.dtb file into the test state, so that a fresh version
  * can be used for a test that is about to run.
  *
  * If @uts->other_fdt is NULL, as it is when first set up, this allocates a
  * buffer for the other FDT and sets @uts->other_fdt_size to its size.
  *
  * In any case, the other FDT is copied from the sandbox state into
  * @uts->other_fdt ready for use.
  *
  * @uts: Unit test state
  * @return 0 if OK, -ve on error
  */
 int sandbox_load_other_fdt(void **fdtp, int *sizep);

 /**
  * sandbox_set_eth_enable() - Enable / disable Ethernet
  *
  * Allows control of whether Ethernet packets are actually send/received
  *
  * @enable: true to enable Ethernet, false to disable
  */
 void sandbox_set_eth_enable(bool enable);

 /**
  * sandbox_eth_enabled() - Check if Ethernet is enabled
  *
  * Returns: true if Ethernet is enabled on sandbox, False if not
  */
 bool sandbox_eth_enabled(void);

 #endif
	/* SPDX-License-Identifier: GPL-2.0+ */
	/*
	* Test-related constants for sandbox
	*
	* Copyright (c) 2014 Google, Inc
	*/

	#ifndef __ASM_TEST_H
	#define __ASM_TEST_H

	#include <video.h>
	#include <pci_ids.h>

	struct unit_test_state;

	/* The sandbox driver always permits an I2C device with this address */
	#define SANDBOX_I2C_TEST_ADDR 0x59

	#define SANDBOX_PCI_VENDOR_ID 0x1234
	#define SANDBOX_PCI_SWAP_CASE_EMUL_ID 0x5678
	#define SANDBOX_PCI_PMC_EMUL_ID 0x5677
	#define SANDBOX_PCI_P2SB_EMUL_ID 0x5676
	#define SANDBOX_PCI_CLASS_CODE (PCI_CLASS_COMMUNICATION_SERIAL >> 8)
	#define SANDBOX_PCI_CLASS_SUB_CODE (PCI_CLASS_COMMUNICATION_SERIAL & 0xff)

	#define PCI_CAP_ID_PM_OFFSET 0x50
	#define PCI_CAP_ID_EXP_OFFSET 0x60
	#define PCI_CAP_ID_MSIX_OFFSET 0x70
	#define PCI_CAP_ID_EA_OFFSET 0x80

	#define PCI_EXT_CAP_ID_ERR_OFFSET 0x100
	#define PCI_EXT_CAP_ID_VC_OFFSET 0x200
	#define PCI_EXT_CAP_ID_DSN_OFFSET 0x300

	/* Useful for PCI_VDEVICE() macro */
	#define PCI_VENDOR_ID_SANDBOX SANDBOX_PCI_VENDOR_ID
	#define SWAP_CASE_DRV_DATA 0x55aa

	#define SANDBOX_CLK_RATE 32768

	/* Macros used to test PCI EA capability structure */
	#define PCI_CAP_EA_BASE_LO0 0x00100000
	#define PCI_CAP_EA_BASE_LO1 0x00110000
	#define PCI_CAP_EA_BASE_LO2 0x00120000
	#define PCI_CAP_EA_BASE_LO4 0x00140000
	#define PCI_CAP_EA_BASE_HI2 0x00020000ULL
	#define PCI_CAP_EA_BASE_HI4 0x00040000ULL
	#define PCI_CAP_EA_SIZE_LO 0x0000ffff
	#define PCI_CAP_EA_SIZE_HI 0x00000010ULL
	#define PCI_EA_BAR2_MAGIC 0x72727272
	#define PCI_EA_BAR4_MAGIC 0x74747474

	enum {
	SANDBOX_IRQN_PEND = 1, /* Interrupt number for 'pending' test */
	};

	/* System controller driver data */
	enum {
	SYSCON0 = 32,
	SYSCON1,

	SYSCON_COUNT
	};

	/**
	*/
	enum cros_ec_test_t {
	CROSECT_BREAK_HELLO = BIT(1),
	CROSECT_LID_OPEN = BIT(2),
	};

	/**
	* sandbox_i2c_set_test_mode() - set test mode for running unit tests
	*
	* See sandbox_i2c_xfer() for the behaviour changes.
	*
	* @bus: sandbox I2C bus to adjust
	* @test_mode: true to select test mode, false to run normally
	*/
	void sandbox_i2c_set_test_mode(struct udevice *bus, bool test_mode);

	enum sandbox_i2c_eeprom_test_mode {
	SIE_TEST_MODE_NONE,
	/* Permits read/write of only one byte per I2C transaction */
	SIE_TEST_MODE_SINGLE_BYTE,
	};

	void sandbox_i2c_eeprom_set_test_mode(struct udevice *dev,
	enum sandbox_i2c_eeprom_test_mode mode);

	void sandbox_i2c_eeprom_set_offset_len(struct udevice *dev, int offset_len);

	void sandbox_i2c_eeprom_set_chip_addr_offset_mask(struct udevice *dev,
	uint mask);

	uint sanbox_i2c_eeprom_get_prev_addr(struct udevice *dev);

	uint sanbox_i2c_eeprom_get_prev_offset(struct udevice *dev);

	/**
	* sandbox_i2c_rtc_set_offset() - set the time offset from system/base time
	*
	* @dev: RTC device to adjust
	* @use_system_time: true to use system time, false to use @base_time
	* @offset: RTC offset from current system/base time (-1 for no
	* change)
	* Return: old value of RTC offset
	*/
	long sandbox_i2c_rtc_set_offset(struct udevice *dev, bool use_system_time,
	int offset);

	/**
	* sandbox_i2c_rtc_get_set_base_time() - get and set the base time
	*
	* @dev: RTC device to adjust
	* @base_time: New base system time (set to -1 for no change)
	* Return: old base time
	*/
	long sandbox_i2c_rtc_get_set_base_time(struct udevice *dev, long base_time);

	int sandbox_usb_keyb_add_string(struct udevice dev, const char str);

	/**
	* sandbox_osd_get_mem() - get the internal memory of a sandbox OSD
	*
	* @dev: OSD device for which to access the internal memory for
	* @buf: pointer to buffer to receive the OSD memory data
	* @buflen: length of buffer in bytes
	*/
	int sandbox_osd_get_mem(struct udevice dev, u8 buf, size_t buflen);

	/**
	* sandbox_pwm_get_config() - get the PWM config for a channel
	*
	* @dev: Device to check
	* @channel: Channel number to check
	* @period_ns: Period of the PWM in nanoseconds
	* @duty_ns: Current duty cycle of the PWM in nanoseconds
	* @enable: true if the PWM is enabled
	* @polarity: true if the PWM polarity is active high
	* Return: 0 if OK, -ENOSPC if the PWM number is invalid
	*/
	int sandbox_pwm_get_config(struct udevice dev, uint channel, uint period_nsp,
	uint duty_nsp, bool enablep, bool *polarityp);

	/**
	* sandbox_sf_set_block_protect() - Set the BP bits of the status register
	*
	* @dev: Device to update
	* @bp_mask: BP bits to set (bits 2:0, so a value of 0 to 7)
	*/
	void sandbox_sf_set_block_protect(struct udevice *dev, int bp_mask);

	/**
	* sandbox_get_codec_params() - Read back codec parameters
	*
	* This reads back the parameters set by audio_codec_set_params() for the
	* sandbox audio driver. Arguments are as for that function.
	*/
	void sandbox_get_codec_params(struct udevice dev, int interfacep, int *ratep,
	int mclk_freqp, int bits_per_samplep,
	uint *channelsp);

	/**
	* sandbox_get_i2s_sum() - Read back the sum of the audio data so far
	*
	* This data is provided to the sandbox driver by the I2S tx_data() method.
	*
	* @dev: Device to check
	* Return: sum of audio data
	*/
	int sandbox_get_i2s_sum(struct udevice *dev);

	/**
	* sandbox_get_setup_called() - Returns the number of times setup(*) was called
	*
	* This is used in the sound test
	*
	* @dev: Device to check
	* Return: call count for the setup() method
	*/
	int sandbox_get_setup_called(struct udevice *dev);

	/**
	* sandbox_get_sound_active() - Returns whether sound play is in progress
	*
	* Return: true if active, false if not
	*/
	int sandbox_get_sound_active(struct udevice *dev);

	/**
	* sandbox_get_sound_count() - Read back the count of the sound data so far
	*
	* This data is provided to the sandbox driver by the sound play() method.
	*
	* @dev: Device to check
	* Return: count of audio data
	*/
	int sandbox_get_sound_count(struct udevice *dev);

	/**
	* sandbox_get_sound_sum() - Read back the sum of the sound data so far
	*
	* This data is provided to the sandbox driver by the sound play() method.
	*
	* @dev: Device to check
	* Return: sum of audio data
	*/
	int sandbox_get_sound_sum(struct udevice *dev);

	/**
	* sandbox_set_allow_beep() - Set whether the 'beep' interface is supported
	*
	* @dev: Device to update
	* @allow: true to allow the start_beep() method, false to disallow it
	*/
	void sandbox_set_allow_beep(struct udevice *dev, bool allow);

	/**
	* sandbox_get_beep_frequency() - Get the frequency of the current beep
	*
	* @dev: Device to check
	* Return: frequency of beep, if there is an active beep, else 0
	*/
	int sandbox_get_beep_frequency(struct udevice *dev);

	/**
	* sandbox_spi_get_speed() - Get current speed setting of a sandbox spi bus
	*
	* @dev: Device to check
	* Return: current bus speed
	*/
	uint sandbox_spi_get_speed(struct udevice *dev);

	/**
	* sandbox_spi_get_mode() - Get current mode setting of a sandbox spi bus
	*
	* @dev: Device to check
	* Return: current mode
	*/
	uint sandbox_spi_get_mode(struct udevice *dev);

	/**
	* sandbox_get_pch_spi_protect() - Get the PCI SPI protection status
	*
	* @dev: Device to check
	* Return: 0 if not protected, 1 if protected
	*/
	int sandbox_get_pch_spi_protect(struct udevice *dev);

	/**
	* sandbox_get_pci_ep_irq_count() - Get the PCI EP IRQ count
	*
	* @dev: Device to check
	* Return: irq count
	*/
	int sandbox_get_pci_ep_irq_count(struct udevice *dev);

	/**
	* sandbox_pci_read_bar() - Read the BAR value for a read_config operation
	*
	* This is used in PCI emulators to read a base address reset. This has special
	* rules because when the register is set to 0xffffffff it can be used to
	* discover the type and size of the BAR.
	*
	* @barval: Current value of the BAR
	* @type: Type of BAR (PCI_BASE_ADDRESS_SPACE_IO or
	* PCI_BASE_ADDRESS_MEM_TYPE_32)
	* @size: Size of BAR in bytes
	* Return: BAR value to return from emulator
	*/
	uint sandbox_pci_read_bar(u32 barval, int type, uint size);

	/**
	* sandbox_set_enable_memio() - Enable readl/writel() for sandbox
	*
	* Normally these I/O functions do nothing with sandbox. Certain tests need them
	* to work as for other architectures, so this function can be used to enable
	* them.
	*
	* @enable: true to enable, false to disable
	*/
	void sandbox_set_enable_memio(bool enable);

	/**
	* sandbox_cros_ec_set_test_flags() - Set behaviour for testing purposes
	*
	* @dev: Device to check
	* @flags: Flags to control behaviour (CROSECT_...)
	*/
	void sandbox_cros_ec_set_test_flags(struct udevice *dev, uint flags);

	/**
	* sandbox_cros_ec_get_pwm_duty() - Get EC PWM config for testing purposes
	*
	* @dev: Device to check
	* @index: PWM channel index
	* @duty: Current duty cycle in 0..EC_PWM_MAX_DUTY range.
	* Return: 0 if OK, -ENOSPC if the PWM number is invalid
	*/
	int sandbox_cros_ec_get_pwm_duty(struct udevice dev, uint index, uint duty);

	/**
	* sandbox_sdl_set_bpp() - Set the depth of the sandbox display
	*
	* The device must not be active when this function is called. It activiates it
	* before returning.
	*
	* This updates the depth value and adjusts a few other settings accordingly.
	* It must be called before the display is probed.
	*
	* @dev: Device to adjust
	* @l2bpp: depth to set
	* Return: 0 if the device was already active, other error if it fails to probe
	* after the change
	*/
	int sandbox_sdl_set_bpp(struct udevice *dev, enum video_log2_bpp l2bpp);

	/**
	* sandbox_set_fake_efi_mgr_dev() - Control EFI bootmgr producing valid bootflow
	*
	* This is only used for testing.
	*
	* @dev: efi_mgr bootmeth device
	* @fake_dev: true to produce a valid bootflow when requested, false to produce
	* an error
	*/
	void sandbox_set_fake_efi_mgr_dev(struct udevice *dev, bool fake_dev);

	/**
	* sandbox_load_other_fdt() - load the 'other' FDT into the test state
	*
	* This copies the other.dtb file into the test state, so that a fresh version
	* can be used for a test that is about to run.
	*
	* If @uts->other_fdt is NULL, as it is when first set up, this allocates a
	* buffer for the other FDT and sets @uts->other_fdt_size to its size.
	*
	* In any case, the other FDT is copied from the sandbox state into
	* @uts->other_fdt ready for use.
	*
	* @uts: Unit test state
	* @return 0 if OK, -ve on error
	*/
	int sandbox_load_other_fdt(void *fdtp, int sizep);

	/**
	* sandbox_set_eth_enable() - Enable / disable Ethernet
	*
	* Allows control of whether Ethernet packets are actually send/received
	*
	* @enable: true to enable Ethernet, false to disable
	*/
	void sandbox_set_eth_enable(bool enable);

	/**
	* sandbox_eth_enabled() - Check if Ethernet is enabled
	*
	* Returns: true if Ethernet is enabled on sandbox, False if not
	*/
	bool sandbox_eth_enabled(void);

	#endif