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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 8000, 16000, 32000, 44100, 48000, 88200 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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+278
-20
lines changed

3 files changed

+278
-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: 256 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 = 44100;
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 +249,146 @@ ZTEST(drivers_i2s_speed, test_i2s_transfer_short)
258249
TC_PRINT("%d<-OK\n", 3);
259250
}
260251

252+
/** @brief Short I2S transfer at 8000 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_08000)
261+
{
262+
int ret;
263+
264+
frame_clk_freq = 8000;
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 16000 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_16000)
281+
{
282+
int ret;
283+
284+
frame_clk_freq = 16000;
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 32000 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_32000)
301+
{
302+
int ret;
303+
304+
frame_clk_freq = 32000;
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 88200 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_88200)
361+
{
362+
int ret;
363+
364+
frame_clk_freq = 88200;
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+
372+
/** @brief Short I2S transfer at 96000 samples per second.
373+
*
374+
* - TX stream START trigger starts transmission.
375+
* - RX stream START trigger starts reception.
376+
* - sending / receiving a short sequence of data returns success.
377+
* - TX stream DRAIN trigger empties the transmit queue.
378+
* - RX stream STOP trigger stops reception.
379+
*/
380+
ZTEST(drivers_i2s_speed, test_i2s_transfer_short_96000)
381+
{
382+
int ret;
383+
384+
frame_clk_freq = 96000;
385+
ret = configure_stream(dev_i2s_tx, I2S_DIR_TX);
386+
zassert_equal(ret, TC_PASS);
387+
ret = configure_stream(dev_i2s_rx, I2S_DIR_RX);
388+
zassert_equal(ret, TC_PASS);
389+
i2s_transfer_short();
390+
}
391+
261392
/** @brief Long I2S transfer.
262393
*
263394
* - TX stream START trigger starts transmission.
@@ -349,14 +480,7 @@ ZTEST(drivers_i2s_speed, test_i2s_transfer_long)
349480
zassert_equal(num_verified, NUM_BLOCKS, "Invalid RX blocks received");
350481
}
351482

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)
483+
static void i2s_dir_both_transfer_short(void)
360484
{
361485
if (!dir_both_supported) {
362486
TC_PRINT("I2S_DIR_BOTH value is not supported.\n");
@@ -417,6 +541,118 @@ ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short)
417541
TC_PRINT("%d<-OK\n", 3);
418542
}
419543

544+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 8000.
545+
*
546+
* - START trigger starts both the transmission and reception.
547+
* - Sending / receiving a short sequence of data returns success.
548+
* - DRAIN trigger empties the transmit queue and stops both streams.
549+
*/
550+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_08000)
551+
{
552+
int ret;
553+
554+
frame_clk_freq = 8000;
555+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
556+
zassert_equal(ret, TC_PASS);
557+
i2s_dir_both_transfer_short();
558+
}
559+
560+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 16000.
561+
*
562+
* - START trigger starts both the transmission and reception.
563+
* - Sending / receiving a short sequence of data returns success.
564+
* - DRAIN trigger empties the transmit queue and stops both streams.
565+
*/
566+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_16000)
567+
{
568+
int ret;
569+
570+
frame_clk_freq = 16000;
571+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
572+
zassert_equal(ret, TC_PASS);
573+
i2s_dir_both_transfer_short();
574+
}
575+
576+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 32000.
577+
*
578+
* - START trigger starts both the transmission and reception.
579+
* - Sending / receiving a short sequence of data returns success.
580+
* - DRAIN trigger empties the transmit queue and stops both streams.
581+
*/
582+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_32000)
583+
{
584+
int ret;
585+
586+
frame_clk_freq = 32000;
587+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
588+
zassert_equal(ret, TC_PASS);
589+
i2s_dir_both_transfer_short();
590+
}
591+
592+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 44100.
593+
*
594+
* - START trigger starts both the transmission and reception.
595+
* - Sending / receiving a short sequence of data returns success.
596+
* - DRAIN trigger empties the transmit queue and stops both streams.
597+
*/
598+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_44100)
599+
{
600+
int ret;
601+
602+
frame_clk_freq = 44100;
603+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
604+
zassert_equal(ret, TC_PASS);
605+
i2s_dir_both_transfer_short();
606+
}
607+
608+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 48000.
609+
*
610+
* - START trigger starts both the transmission and reception.
611+
* - Sending / receiving a short sequence of data returns success.
612+
* - DRAIN trigger empties the transmit queue and stops both streams.
613+
*/
614+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_48000)
615+
{
616+
int ret;
617+
618+
frame_clk_freq = 48000;
619+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
620+
zassert_equal(ret, TC_PASS);
621+
i2s_dir_both_transfer_short();
622+
}
623+
624+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 88200.
625+
*
626+
* - START trigger starts both the transmission and reception.
627+
* - Sending / receiving a short sequence of data returns success.
628+
* - DRAIN trigger empties the transmit queue and stops both streams.
629+
*/
630+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_88200)
631+
{
632+
int ret;
633+
634+
frame_clk_freq = 88200;
635+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
636+
zassert_equal(ret, TC_PASS);
637+
i2s_dir_both_transfer_short();
638+
}
639+
640+
/** @brief Short I2S transfer using I2S_DIR_BOTH and sample rate of 96000.
641+
*
642+
* - START trigger starts both the transmission and reception.
643+
* - Sending / receiving a short sequence of data returns success.
644+
* - DRAIN trigger empties the transmit queue and stops both streams.
645+
*/
646+
ZTEST(drivers_i2s_speed_both_rxtx, test_i2s_dir_both_transfer_short_96000)
647+
{
648+
int ret;
649+
650+
frame_clk_freq = 96000;
651+
ret = configure_stream(dev_i2s_rxtx, I2S_DIR_BOTH);
652+
zassert_equal(ret, TC_PASS);
653+
i2s_dir_both_transfer_short();
654+
}
655+
420656
/** @brief Long I2S transfer using I2S_DIR_BOTH.
421657
*
422658
* - 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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