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https://github.com/brain-hackers/u-boot-brain
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b330991874
Add a sandbox DMA driver implementation (provider) and corresponding DM test. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Reviewed-by: Simon Glass <sjg@chromium.org> Acked-by: Álvaro Fernández Rojas <noltari@gmail.com>
124 lines
2.8 KiB
C
124 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Direct Memory Access U-Class tests
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*
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* Copyright (C) 2018 Texas Instruments Incorporated <www.ti.com>
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* Grygorii Strashko <grygorii.strashko@ti.com>
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*/
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#include <common.h>
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#include <dm.h>
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#include <dm/test.h>
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#include <dma.h>
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#include <test/ut.h>
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static int dm_test_dma_m2m(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct dma dma_m2m;
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u8 src_buf[512];
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u8 dst_buf[512];
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size_t len = 512;
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int i;
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ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
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ut_assertok(dma_get_by_name(dev, "m2m", &dma_m2m));
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memset(dst_buf, 0, len);
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for (i = 0; i < len; i++)
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src_buf[i] = i;
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ut_assertok(dma_memcpy(dst_buf, src_buf, len));
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ut_assertok(memcmp(src_buf, dst_buf, len));
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return 0;
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}
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DM_TEST(dm_test_dma_m2m, DM_TESTF_SCAN_FDT);
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static int dm_test_dma(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct dma dma_tx, dma_rx;
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u8 src_buf[512];
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u8 dst_buf[512];
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void *dst_ptr;
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size_t len = 512;
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u32 meta1, meta2;
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int i;
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ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
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ut_assertok(dma_get_by_name(dev, "tx0", &dma_tx));
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ut_assertok(dma_get_by_name(dev, "rx0", &dma_rx));
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ut_assertok(dma_enable(&dma_tx));
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ut_assertok(dma_enable(&dma_rx));
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memset(dst_buf, 0, len);
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for (i = 0; i < len; i++)
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src_buf[i] = i;
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meta1 = 0xADADDEAD;
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meta2 = 0;
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dst_ptr = &dst_buf;
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ut_assertok(dma_send(&dma_tx, src_buf, len, &meta1));
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ut_asserteq(len, dma_receive(&dma_rx, &dst_ptr, &meta2));
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ut_asserteq(0xADADDEAD, meta2);
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ut_assertok(dma_disable(&dma_tx));
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ut_assertok(dma_disable(&dma_rx));
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ut_assertok(dma_free(&dma_tx));
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ut_assertok(dma_free(&dma_rx));
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ut_assertok(memcmp(src_buf, dst_buf, len));
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return 0;
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}
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DM_TEST(dm_test_dma, DM_TESTF_SCAN_FDT);
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static int dm_test_dma_rx(struct unit_test_state *uts)
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{
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struct udevice *dev;
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struct dma dma_tx, dma_rx;
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u8 src_buf[512];
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u8 dst_buf[512];
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void *dst_ptr;
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size_t len = 512;
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u32 meta1, meta2;
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int i;
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ut_assertok(uclass_get_device_by_name(UCLASS_DMA, "dma", &dev));
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ut_assertok(dma_get_by_name(dev, "tx0", &dma_tx));
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ut_assertok(dma_get_by_name(dev, "rx0", &dma_rx));
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ut_assertok(dma_enable(&dma_tx));
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ut_assertok(dma_enable(&dma_rx));
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memset(dst_buf, 0, len);
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for (i = 0; i < len; i++)
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src_buf[i] = i;
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meta1 = 0xADADDEAD;
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meta2 = 0;
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dst_ptr = NULL;
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ut_assertok(dma_prepare_rcv_buf(&dma_tx, dst_buf, len));
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ut_assertok(dma_send(&dma_tx, src_buf, len, &meta1));
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ut_asserteq(len, dma_receive(&dma_rx, &dst_ptr, &meta2));
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ut_asserteq(0xADADDEAD, meta2);
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ut_asserteq_ptr(dst_buf, dst_ptr);
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ut_assertok(dma_disable(&dma_tx));
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ut_assertok(dma_disable(&dma_rx));
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ut_assertok(dma_free(&dma_tx));
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ut_assertok(dma_free(&dma_rx));
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ut_assertok(memcmp(src_buf, dst_buf, len));
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return 0;
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}
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DM_TEST(dm_test_dma_rx, DM_TESTF_SCAN_FDT);
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