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/*
* Copyright (c) 2016, NVIDIA CORPORATION.
*
* SPDX-License-Identifier: GPL-2.0
*/
#ifndef __SANDBOX_CLK_H
#define __SANDBOX_CLK_H
#include <common.h>
struct udevice;
/**
* enum sandbox_clk_id - Identity of clocks implemented by the sandbox clock
* provider.
*
* These IDs are within/relative-to the clock provider.
*/
enum sandbox_clk_id {
SANDBOX_CLK_ID_SPI,
SANDBOX_CLK_ID_I2C,
SANDBOX_CLK_ID_COUNT,
};
/**
* enum sandbox_clk_test_id - Identity of the clocks consumed by the sandbox
* clock test device.
*
* These are the IDs the clock consumer knows the clocks as.
*/
enum sandbox_clk_test_id {
SANDBOX_CLK_TEST_ID_FIXED,
SANDBOX_CLK_TEST_ID_SPI,
SANDBOX_CLK_TEST_ID_I2C,
SANDBOX_CLK_TEST_ID_COUNT,
};
/**
* sandbox_clk_query_rate - Query the current rate of a sandbox clock.
*
* @dev: The sandbox clock provider device.
* @id: The clock to query.
* @return: The rate of the clock.
*/
ulong sandbox_clk_query_rate(struct udevice *dev, int id);
/**
* sandbox_clk_query_enable - Query the enable state of a sandbox clock.
*
* @dev: The sandbox clock provider device.
* @id: The clock to query.
* @return: The rate of the clock.
*/
int sandbox_clk_query_enable(struct udevice *dev, int id);
/**
* sandbox_clk_test_get - Ask the sandbox clock test device to request its
* clocks.
*
* @dev: The sandbox clock test (client) devivce.
* @return: 0 if OK, or a negative error code.
*/
int sandbox_clk_test_get(struct udevice *dev);
/**
* sandbox_clk_test_get_rate - Ask the sandbox clock test device to query a
* clock's rate.
*
* @dev: The sandbox clock test (client) devivce.
* @id: The test device's clock ID to query.
* @return: The rate of the clock.
*/
ulong sandbox_clk_test_get_rate(struct udevice *dev, int id);
/**
* sandbox_clk_test_set_rate - Ask the sandbox clock test device to set a
* clock's rate.
*
* @dev: The sandbox clock test (client) devivce.
* @id: The test device's clock ID to configure.
* @return: The new rate of the clock.
*/
ulong sandbox_clk_test_set_rate(struct udevice *dev, int id, ulong rate);
/**
* sandbox_clk_test_enable - Ask the sandbox clock test device to enable a
* clock.
*
* @dev: The sandbox clock test (client) devivce.
* @id: The test device's clock ID to configure.
* @return: 0 if OK, or a negative error code.
*/
int sandbox_clk_test_enable(struct udevice *dev, int id);
/**
* sandbox_clk_test_disable - Ask the sandbox clock test device to disable a
* clock.
*
* @dev: The sandbox clock test (client) devivce.
* @id: The test device's clock ID to configure.
* @return: 0 if OK, or a negative error code.
*/
int sandbox_clk_test_disable(struct udevice *dev, int id);
/**
* sandbox_clk_test_free - Ask the sandbox clock test device to free its
* clocks.
*
* @dev: The sandbox clock test (client) devivce.
* @return: 0 if OK, or a negative error code.
*/
int sandbox_clk_test_free(struct udevice *dev);
#endif
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