dma.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* Direct Memory Access U-Class tests
*
* Copyright (C) 2018 Texas Instruments Incorporated <www.ti.com>
* Grygorii Strashko <grygorii.strashko@ti.com>
*/
#include <common.h>
#include <dm.h>
#include <malloc.h>
#include <dm/test.h>
#include <dma.h>
#include <test/ut.h>
static int dm_test_dma_m2m(struct unit_test_state *uts)
{
struct udevice *dev;
struct dma dma_m2m;
u8 src_buf[512];
u8 dst_buf[512];
size_t len = 512;
int i;
ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
ut_assertok(dma_get_by_name(dev, "m2m", &dma_m2m));
memset(dst_buf, 0, len);
for (i = 0; i < len; i++)
src_buf[i] = i;
ut_assertok(dma_memcpy(dst_buf, src_buf, len));
ut_assertok(memcmp(src_buf, dst_buf, len));
return 0;
}
DM_TEST(dm_test_dma_m2m, DM_TESTF_SCAN_FDT);
static int dm_test_dma(struct unit_test_state *uts)
{
struct udevice *dev;
struct dma dma_tx, dma_rx;
u8 src_buf[512];
u8 dst_buf[512];
void *dst_ptr;
size_t len = 512;
u32 meta1, meta2;
int i;
ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
ut_assertok(dma_get_by_name(dev, "tx0", &dma_tx));
ut_assertok(dma_get_by_name(dev, "rx0", &dma_rx));
ut_assertok(dma_enable(&dma_tx));
ut_assertok(dma_enable(&dma_rx));
memset(dst_buf, 0, len);
for (i = 0; i < len; i++)
src_buf[i] = i;
meta1 = 0xADADDEAD;
meta2 = 0;
dst_ptr = &dst_buf;
ut_assertok(dma_send(&dma_tx, src_buf, len, &meta1));
ut_asserteq(len, dma_receive(&dma_rx, &dst_ptr, &meta2));
ut_asserteq(0xADADDEAD, meta2);
ut_assertok(dma_disable(&dma_tx));
ut_assertok(dma_disable(&dma_rx));
ut_assertok(dma_free(&dma_tx));
ut_assertok(dma_free(&dma_rx));
ut_assertok(memcmp(src_buf, dst_buf, len));
return 0;
}
DM_TEST(dm_test_dma, DM_TESTF_SCAN_FDT);
static int dm_test_dma_rx(struct unit_test_state *uts)
{
struct udevice *dev;
struct dma dma_tx, dma_rx;
u8 src_buf[512];
u8 dst_buf[512];
void *dst_ptr;
size_t len = 512;
u32 meta1, meta2;
int i;
ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
ut_assertok(dma_get_by_name(dev, "tx0", &dma_tx));
ut_assertok(dma_get_by_name(dev, "rx0", &dma_rx));
ut_assertok(dma_enable(&dma_tx));
ut_assertok(dma_enable(&dma_rx));
memset(dst_buf, 0, len);
for (i = 0; i < len; i++)
src_buf[i] = i;
meta1 = 0xADADDEAD;
meta2 = 0;
dst_ptr = NULL;
ut_assertok(dma_prepare_rcv_buf(&dma_tx, dst_buf, len));
ut_assertok(dma_send(&dma_tx, src_buf, len, &meta1));
ut_asserteq(len, dma_receive(&dma_rx, &dst_ptr, &meta2));
ut_asserteq(0xADADDEAD, meta2);
ut_asserteq_ptr(dst_buf, dst_ptr);
ut_assertok(dma_disable(&dma_tx));
ut_assertok(dma_disable(&dma_rx));
ut_assertok(dma_free(&dma_tx));
ut_assertok(dma_free(&dma_rx));
ut_assertok(memcmp(src_buf, dst_buf, len));
return 0;
}
DM_TEST(dm_test_dma_rx, DM_TESTF_SCAN_FDT);