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[nrf fromlist] tests: drivers: i2s: Add tests at typical audio sample rates
Change frame clock frequency to a global variable so it can be changed inside a test. Add short transfer test at 16000, 32000, 44000, 44100, 48000 and 96000 frame clock frequency. Add configuration for nrf5340dk where i2s peripheral is clocked from ACLK. Upstream PR #: 85126 Signed-off-by: Sebastian Głąb <[email protected]>
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-20
lines changed

3 files changed

+242
-20
lines changed

‎tests/drivers/i2s/i2s_speed/boards/nrf5340dk_nrf5340_cpuapp_aclk.overlay‎

Lines changed: 9 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,9 @@
1+
/* Drive i2s peripheral from ACLK. */
2+
3+
&clock {
4+
hfclkaudio-frequency = <11289600>;
5+
};
6+
7+
&i2s0 {
8+
clock-source = "ACLK";
9+
};

‎tests/drivers/i2s/i2s_speed/src/test_i2s_speed.c‎

Lines changed: 220 additions & 20 deletions
Original file line numberDiff line numberDiff line change
@@ -74,6 +74,7 @@ static const struct device *dev_i2s_rx;
7474
static const struct device *dev_i2s_tx;
7575
static const struct device *dev_i2s_rxtx;
7676
static bool dir_both_supported;
77+
static uint32_t frame_clk_freq = 44000;
7778

7879
static void fill_buf(int16_t *tx_block, int att)
7980
{
@@ -125,7 +126,6 @@ static int verify_buf(int16_t *rx_block, int att)
125126
}
126127

127128
#define TIMEOUT 2000
128-
#define FRAME_CLK_FREQ 44000
129129

130130
static int configure_stream(const struct device *dev_i2s, enum i2s_dir dir)
131131
{
@@ -135,7 +135,7 @@ static int configure_stream(const struct device *dev_i2s, enum i2s_dir dir)
135135
i2s_cfg.word_size = 16U;
136136
i2s_cfg.channels = 2U;
137137
i2s_cfg.format = I2S_FMT_DATA_FORMAT_I2S;
138-
i2s_cfg.frame_clk_freq = FRAME_CLK_FREQ;
138+
i2s_cfg.frame_clk_freq = frame_clk_freq;
139139
i2s_cfg.block_size = BLOCK_SIZE;
140140
i2s_cfg.timeout = TIMEOUT;
141141

@@ -179,16 +179,7 @@ static int configure_stream(const struct device *dev_i2s, enum i2s_dir dir)
179179
return TC_PASS;
180180
}
181181

182-
183-
/** @brief Short I2S transfer.
184-
*
185-
* - TX stream START trigger starts transmission.
186-
* - RX stream START trigger starts reception.
187-
* - sending / receiving a short sequence of data returns success.
188-
* - TX stream DRAIN trigger empties the transmit queue.
189-
* - RX stream STOP trigger stops reception.
190-
*/
191-
ZTEST(drivers_i2s_speed, test_i2s_transfer_short)
182+
static void i2s_transfer_short(void)
192183
{
193184
if (IS_ENABLED(CONFIG_I2S_TEST_USE_I2S_DIR_BOTH)) {
194185
TC_PRINT("RX/TX transfer requires use of I2S_DIR_BOTH.\n");
@@ -258,6 +249,126 @@ ZTEST(drivers_i2s_speed, test_i2s_transfer_short)
258249
TC_PRINT("%d<-OK\n", 3);
259250
}
260251

252+
/** @brief Short I2S transfer at 16000 samples per second.
253+
*
254+
* - TX stream START trigger starts transmission.
255+
* - RX stream START trigger starts reception.
256+
* - sending / receiving a short sequence of data returns success.
257+
* - TX stream DRAIN trigger empties the transmit queue.
258+
* - RX stream STOP trigger stops reception.
259+
*/
260+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_16000)
261+
{
262+
int ret;
263+
264+
frame_clk_freq = 16000;
265+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
266+
zassert_equal(ret, TC_PASS);
267+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
268+
zassert_equal(ret, TC_PASS);
269+
i2s_transfer_short();
270+
}
271+
272+
/** @brief Short I2S transfer at 32000 samples per second.
273+
*
274+
* - TX stream START trigger starts transmission.
275+
* - RX stream START trigger starts reception.
276+
* - sending / receiving a short sequence of data returns success.
277+
* - TX stream DRAIN trigger empties the transmit queue.
278+
* - RX stream STOP trigger stops reception.
279+
*/
280+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_32000)
281+
{
282+
int ret;
283+
284+
frame_clk_freq = 32000;
285+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
286+
zassert_equal(ret, TC_PASS);
287+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
288+
zassert_equal(ret, TC_PASS);
289+
i2s_transfer_short();
290+
}
291+
292+
/** @brief Short I2S transfer at 44000 samples per second.
293+
*
294+
* - TX stream START trigger starts transmission.
295+
* - RX stream START trigger starts reception.
296+
* - sending / receiving a short sequence of data returns success.
297+
* - TX stream DRAIN trigger empties the transmit queue.
298+
* - RX stream STOP trigger stops reception.
299+
*/
300+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_44000)
301+
{
302+
int ret;
303+
304+
frame_clk_freq = 44000;
305+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
306+
zassert_equal(ret, TC_PASS);
307+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
308+
zassert_equal(ret, TC_PASS);
309+
i2s_transfer_short();
310+
}
311+
312+
/** @brief Short I2S transfer at 44100 samples per second.
313+
*
314+
* - TX stream START trigger starts transmission.
315+
* - RX stream START trigger starts reception.
316+
* - sending / receiving a short sequence of data returns success.
317+
* - TX stream DRAIN trigger empties the transmit queue.
318+
* - RX stream STOP trigger stops reception.
319+
*/
320+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_44100)
321+
{
322+
int ret;
323+
324+
frame_clk_freq = 44100;
325+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
326+
zassert_equal(ret, TC_PASS);
327+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
328+
zassert_equal(ret, TC_PASS);
329+
i2s_transfer_short();
330+
}
331+
332+
/** @brief Short I2S transfer at 48000 samples per second.
333+
*
334+
* - TX stream START trigger starts transmission.
335+
* - RX stream START trigger starts reception.
336+
* - sending / receiving a short sequence of data returns success.
337+
* - TX stream DRAIN trigger empties the transmit queue.
338+
* - RX stream STOP trigger stops reception.
339+
*/
340+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_48000)
341+
{
342+
int ret;
343+
344+
frame_clk_freq = 48000;
345+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
346+
zassert_equal(ret, TC_PASS);
347+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
348+
zassert_equal(ret, TC_PASS);
349+
i2s_transfer_short();
350+
}
351+
352+
/** @brief Short I2S transfer at 96000 samples per second.
353+
*
354+
* - TX stream START trigger starts transmission.
355+
* - RX stream START trigger starts reception.
356+
* - sending / receiving a short sequence of data returns success.
357+
* - TX stream DRAIN trigger empties the transmit queue.
358+
* - RX stream STOP trigger stops reception.
359+
*/
360+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_96000)
361+
{
362+
int ret;
363+
364+
frame_clk_freq = 96000;
365+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
366+
zassert_equal(ret, TC_PASS);
367+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
368+
zassert_equal(ret, TC_PASS);
369+
i2s_transfer_short();
370+
}
371+
261372
/** @brief Long I2S transfer.
262373
*
263374
* - TX stream START trigger starts transmission.
@@ -349,14 +460,7 @@ ZTEST(drivers_i2s_speed, test_i2s_transfer_long)
349460
zassert_equal(num_verified, NUM_BLOCKS, "Invalid RX blocks received");
350461
}
351462

352-
353-
/** @brief Short I2S transfer using I2S_DIR_BOTH.
354-
*
355-
* - START trigger starts both the transmission and reception.
356-
* - Sending / receiving a short sequence of data returns success.
357-
* - DRAIN trigger empties the transmit queue and stops both streams.
358-
*/
359-
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short)
463+
static void i2s_dir_both_transfer_short(void)
360464
{
361465
if (!dir_both_supported) {
362466
TC_PRINT("I2S_DIR_BOTH value is not supported.\n");
@@ -417,6 +521,102 @@ ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short)
417521
TC_PRINT("%d<-OK\n", 3);
418522
}
419523

524+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 16000.
525+
*
526+
* - START trigger starts both the transmission and reception.
527+
* - Sending / receiving a short sequence of data returns success.
528+
* - DRAIN trigger empties the transmit queue and stops both streams.
529+
*/
530+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_16000)
531+
{
532+
int ret;
533+
534+
frame_clk_freq = 16000;
535+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
536+
zassert_equal(ret, TC_PASS);
537+
i2s_dir_both_transfer_short();
538+
}
539+
540+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 32000.
541+
*
542+
* - START trigger starts both the transmission and reception.
543+
* - Sending / receiving a short sequence of data returns success.
544+
* - DRAIN trigger empties the transmit queue and stops both streams.
545+
*/
546+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_32000)
547+
{
548+
int ret;
549+
550+
frame_clk_freq = 32000;
551+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
552+
zassert_equal(ret, TC_PASS);
553+
i2s_dir_both_transfer_short();
554+
}
555+
556+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 44000.
557+
*
558+
* - START trigger starts both the transmission and reception.
559+
* - Sending / receiving a short sequence of data returns success.
560+
* - DRAIN trigger empties the transmit queue and stops both streams.
561+
*/
562+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_44000)
563+
{
564+
int ret;
565+
566+
frame_clk_freq = 44000;
567+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
568+
zassert_equal(ret, TC_PASS);
569+
i2s_dir_both_transfer_short();
570+
}
571+
572+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 44100.
573+
*
574+
* - START trigger starts both the transmission and reception.
575+
* - Sending / receiving a short sequence of data returns success.
576+
* - DRAIN trigger empties the transmit queue and stops both streams.
577+
*/
578+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_44100)
579+
{
580+
int ret;
581+
582+
frame_clk_freq = 44100;
583+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
584+
zassert_equal(ret, TC_PASS);
585+
i2s_dir_both_transfer_short();
586+
}
587+
588+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 48000.
589+
*
590+
* - START trigger starts both the transmission and reception.
591+
* - Sending / receiving a short sequence of data returns success.
592+
* - DRAIN trigger empties the transmit queue and stops both streams.
593+
*/
594+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_48000)
595+
{
596+
int ret;
597+
598+
frame_clk_freq = 48000;
599+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
600+
zassert_equal(ret, TC_PASS);
601+
i2s_dir_both_transfer_short();
602+
}
603+
604+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 96000.
605+
*
606+
* - START trigger starts both the transmission and reception.
607+
* - Sending / receiving a short sequence of data returns success.
608+
* - DRAIN trigger empties the transmit queue and stops both streams.
609+
*/
610+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_96000)
611+
{
612+
int ret;
613+
614+
frame_clk_freq = 96000;
615+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
616+
zassert_equal(ret, TC_PASS);
617+
i2s_dir_both_transfer_short();
618+
}
619+
420620
/** @brief Long I2S transfer using I2S_DIR_BOTH.
421621
*
422622
* - START trigger starts both the transmission and reception.

‎tests/drivers/i2s/i2s_speed/testcase.yaml‎

Lines changed: 13 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -16,3 +16,16 @@ tests:
1616
harness: ztest
1717
harness_config:
1818
fixture: gpio_loopback
19+
drivers.i2s.speed.gpio_loopback.aclk:
20+
depends_on:
21+
- i2s
22+
- gpio
23+
tags:
24+
- drivers
25+
- i2s
26+
filter: CONFIG_I2S_TEST_USE_GPIO_LOOPBACK
27+
harness: ztest
28+
harness_config:
29+
fixture: gpio_loopback
30+
extra_args: EXTRA_DTC_OVERLAY_FILE="boards/nrf5340dk_nrf5340_cpuapp_aclk.overlay"
31+
platform_allow: nrf5340dk/nrf5340/cpuapp

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