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v1.0.3

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刘可亮
2024-01-27 08:47:24 +08:00
parent d3bd993b5f
commit 9f7ba67007
2345 changed files with 74421 additions and 76616 deletions
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127
bsp/examples/test-audio/test_i2s_loopback.c Normal file
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/*
* Copyright (c) 2023-2024, ArtInChip Technology Co., Ltd
*
* SPDX-License-Identifier: Apache-2.0
* Authors: dwj <weijie.ding@artinchip.com>
*/
#include <rtthread.h>
#include <stdio.h>
#include <hal_i2s.h>
#include <hal_dma.h>
#define I2S_PERIOD_COUNT 2
#define I2S_BUFFER_SIZE 128
#define I2S_PERIOD_SIZE (I2S_BUFFER_SIZE / I2S_PERIOD_COUNT)
#define MAX_COUNTER_VALUE 200
#ifdef AIC_USING_I2S0
#define I2S_IDX 0
#elif defined(AIC_USING_I2S1)
#define I2S_IDX 1
#endif
aic_i2s_ctrl i2s_ctrl;
uint8_t i2s_rx_in[I2S_BUFFER_SIZE] __attribute__((aligned(64)));
uint8_t i2s_tx_out[I2S_BUFFER_SIZE] __attribute__((aligned(64)));
volatile int val = 0;
volatile uint32_t tx_pos = 0;
volatile uint8_t rx_pos = 0;
static void drv_i2s_callback(aic_i2s_ctrl *pi2s, void *arg)
{
int i;
unsigned long event = (unsigned long)arg;
switch (event)
{
case I2S_TX_PERIOD_INT:
for (i = 0; i < I2S_PERIOD_SIZE; i++) {
i2s_tx_out[tx_pos++] = val++;
tx_pos %= I2S_BUFFER_SIZE;
val %= MAX_COUNTER_VALUE;
}
aicos_dcache_clean_range((void *)i2s_tx_out, I2S_BUFFER_SIZE);
break;
case I2S_RX_PERIOD_INT:
aicos_dcache_invalid_range((void *)i2s_rx_in, I2S_BUFFER_SIZE);
for (i = 0; i < I2S_PERIOD_SIZE; i++) {
rt_kprintf("%u: %u\n", rx_pos, i2s_rx_in[rx_pos]);
rx_pos++;
}
rx_pos %= I2S_BUFFER_SIZE;
break;
default:
hal_log_err("unknown event\n");
break;
}
}
void i2s_set_format(aic_i2s_ctrl *pi2s, i2s_format_t *format)
{
format->mode = I2S_MODE_MASTER;
format->protocol = I2S_PROTOCOL_I2S;
format->polarity = I2S_LEFT_POLARITY_LOW;
format->rate = I2S_SAMPLE_RATE_48000;
format->width = I2S_SAMPLE_WIDTH_32BIT;
format->slot_width = I2S_SAMPLE_WIDTH_32BIT;
format->channel = I2S_TDM_CHANNEL_2;
format->sclk_nfs = 64;
format->mclk_nfs = 256;
format->stream = I2S_STREAM_PLAYBACK;
hal_i2s_set_format(pi2s, format);
format->stream = I2S_STREAM_RECORD;
hal_i2s_set_format(pi2s, format);
}
static int test_i2s_loopback(int argc, char *argv[])
{
int i;
i2s_format_t format;
i2s_ctrl.rx_info.buf_info.buf = (void *)i2s_rx_in;
i2s_ctrl.rx_info.buf_info.buf_len = I2S_BUFFER_SIZE;
i2s_ctrl.rx_info.buf_info.period_len = I2S_BUFFER_SIZE / I2S_PERIOD_COUNT;
i2s_ctrl.tx_info.buf_info.buf = (void *)i2s_tx_out;
i2s_ctrl.tx_info.buf_info.buf_len = I2S_BUFFER_SIZE;
i2s_ctrl.tx_info.buf_info.period_len = I2S_BUFFER_SIZE / I2S_PERIOD_COUNT;
/*
* TX use dual buffer mode, ecah buffer 64bytes.
* Fill the first buffer.
*/
for (tx_pos = 0; tx_pos < I2S_PERIOD_SIZE; tx_pos++) {
i2s_tx_out[tx_pos] = val++;
}
/*
* RX use dual buffer mode, ecah buffer 64bytes.
* Clear dual buffer data to 0.
*/
for (i = 0; i < I2S_BUFFER_SIZE; i++)
i2s_rx_in[i] = 0;
hal_i2s_init(&i2s_ctrl, I2S_IDX);
/* Enable I2S loopback */
hal_i2s_enable_loopback(&i2s_ctrl);
hal_i2s_attach_callback(&i2s_ctrl, drv_i2s_callback, NULL);
i2s_set_format(&i2s_ctrl, &format);
hal_dma_init();
aicos_request_irq(DMA_IRQn, hal_dma_irq, 0, NULL, NULL);
/* Start capture */
hal_i2s_record_start(&i2s_ctrl, &format);
/* Start playback */
hal_i2s_playback_start(&i2s_ctrl, &format);
while (1)
{
}
return RT_EOK;
}
MSH_CMD_EXPORT_ALIAS(test_i2s_loopback, test_i2s_loopback, test i2s loopback);