1 /*
2 * Copyright (c) 2018 Intel Corporation.
3 *
4 * SPDX-License-Identifier: Apache-2.0
5 */
6
7 #include <zephyr/ztest.h>
8 #include <soc.h>
9 #include <kernel_arch_func.h>
10 #include <zephyr/device.h>
11 #include <zephyr/drivers/dma.h>
12
13 #define DMA_BUFF_SIZE 1024
14
15 enum dma_op_status {
16 DMA_OP_STAT_NONE = 0,
17 DMA_OP_STAT_ERR,
18 DMA_OP_STAT_SUCCESS,
19 };
20
21 static enum dma_op_status dma_stat;
22
23 static char tx_data[DMA_BUFF_SIZE];
24 static char rx_data[DMA_BUFF_SIZE];
25
26 static struct dma_config dma_cfg = {0};
27 static struct dma_block_config dma_block_cfg = {0};
28
dma_user_callback(const struct device * dma_dev,void * arg,uint32_t id,int status)29 static void dma_user_callback(const struct device *dma_dev, void *arg,
30 uint32_t id, int status)
31 {
32 if (status >= 0) {
33 TC_PRINT("DMA completed successfully\n");
34 dma_stat = DMA_OP_STAT_SUCCESS;
35 } else {
36 TC_PRINT("DMA error occurred!! (%d)\n", status);
37 dma_stat = DMA_OP_STAT_ERR;
38 }
39 }
40
ZTEST(nios2_msgdma,test_msgdma)41 ZTEST(nios2_msgdma, test_msgdma)
42 {
43 const struct device *dma;
44 static uint32_t chan_id;
45 int i;
46
47 dma = DEVICE_DT_GET(DT_NODELABEL(dma));
48 __ASSERT_NO_MSG(device_is_ready(dma));
49
50 /* Init tx buffer */
51 for (i = 0; i < DMA_BUFF_SIZE; i++) {
52 tx_data[i] = i;
53 }
54
55 /* Init DMA config info */
56 dma_cfg.channel_direction = MEMORY_TO_MEMORY;
57 dma_cfg.source_data_size = 1U;
58 dma_cfg.dest_data_size = 1U;
59 dma_cfg.source_burst_length = 1U;
60 dma_cfg.dest_burst_length = 1U;
61 dma_cfg.dma_callback = dma_user_callback;
62 dma_cfg.block_count = 1U;
63 dma_cfg.head_block = &dma_block_cfg;
64
65 /*
66 * Set channel id to 0 as Nios-II
67 * MSGDMA only supports one channel
68 */
69 chan_id = 0U;
70
71 /* Init DMA descriptor info */
72 dma_block_cfg.block_size = DMA_BUFF_SIZE;
73 dma_block_cfg.source_address = (uint32_t)tx_data;
74 dma_block_cfg.dest_address = (uint32_t)rx_data;
75
76 /* Configure DMA */
77 zassert_true(dma_config(dma, chan_id, &dma_cfg) == 0,
78 "DMA config error");
79
80 /* Make sure all the data is written out to memory */
81 z_nios2_dcache_flush_all();
82
83 /* Start DMA operation */
84 zassert_true(dma_start(dma, chan_id) == 0, "DMA start error");
85
86 while (dma_stat == DMA_OP_STAT_NONE) {
87 k_busy_wait(10);
88 }
89
90 /* Invalidate the data cache */
91 z_nios2_dcache_flush_no_writeback(rx_data, DMA_BUFF_SIZE);
92
93 zassert_true(dma_stat == DMA_OP_STAT_SUCCESS,
94 "Nios-II DMA operation failed!!");
95
96 zassert_true(!memcmp(&tx_data, &rx_data, DMA_BUFF_SIZE),
97 "Nios-II DMA Test failed!!");
98
99 }
100
101 ZTEST_SUITE(nios2_msgdma, NULL, NULL, NULL, NULL, NULL);
102
