GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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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 <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);