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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2022-12-14 WangXiaoyao the first version
* 2023-03-20 WangXiaoyao Format & add more testcases for API under mm_aspace.h
* 2026-03-19 cl2t Add standardized utest documentation block
*/
/**
* Test Case Name: I/O Remap Test
*
* Test Objectives:
* - Verify the rt_ioremap_cached() API for mapping physical addresses to
* virtual addresses with cached memory access.
* - Test core APIs: rt_pages_alloc(), rt_ioremap_cached(), rt_iounmap(),
* rt_pages_free().
*
* Test Scenarios:
* - Allocates a physical page (4KB), maps it to a virtual address using
* rt_ioremap_cached(), verifies data consistency between the physical
* and virtual addresses, then unmaps and frees the resources.
*
* Verification Metrics:
* - The value read through the virtual address must equal the value at the
* corresponding physical address.
* - No memory leaks after unmap and free operations (validated via
* CONSIST_HEAP wrapper).
*
* Dependencies:
* - Software configuration: RT_USING_SMART must be enabled.
* - Environmental assumptions: MMU support must be available on the target
* platform.
*
* Expected Results:
* - Final output: "[ PASSED ] [ result ] testcase (testcases.mm.ioremap)"
* - No assertion failures during test execution.
*/
#include "common.h"
void ioremap_tc(void)
{
const size_t bufsz = 0x1000;
void *paddr = (void *)rt_pages_alloc(rt_page_bits(bufsz)) + PV_OFFSET;
int *vaddr;
vaddr = rt_ioremap_cached(paddr, bufsz);
if (vaddr)
{
TC_ASSERT(*vaddr == *(int *)(paddr - PV_OFFSET));
rt_iounmap(vaddr);
rt_pages_free(paddr - PV_OFFSET, 0);
}
}
static rt_err_t utest_tc_init(void)
{
return RT_EOK;
}
static rt_err_t utest_tc_cleanup(void)
{
return RT_EOK;
}
static void test_main(void)
{
CONSIST_HEAP(ioremap_tc());
}
UTEST_TC_EXPORT(test_main, "testcases.mm.ioremap", utest_tc_init, utest_tc_cleanup, 20);
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