[L] Change in libosmocore[master]: soft_uart: add unit tests for the receiver and transmitter
fixeria has uploaded this change for review. ( https://gerrit.osmocom.org/c/libosmocore/+/35046?usp=email )
Change subject: soft_uart: add unit tests for the receiver and transmitter ......................................................................
soft_uart: add unit tests for the receiver and transmitter
Change-Id: Icdfa0c644548964d37940c32dc9dcfcfc53c3a19 Related: OS#4396 --- M tests/Makefile.am A tests/soft_uart/soft_uart_test.c A tests/soft_uart/soft_uart_test.ok M tests/testsuite.at 4 files changed, 283 insertions(+), 0 deletions(-)
git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/46/35046/1
diff --git a/tests/Makefile.am b/tests/Makefile.am index 5f4914e..af17e50 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -55,6 +55,7 @@ v110/ra1_test \ gsm44021/frame_csd_test \ osmo_io/osmo_io_test \ + soft_uart/soft_uart_test \ $(NULL)
if ENABLE_MSGFILE @@ -375,6 +376,8 @@
osmo_io_osmo_io_test_SOURCES = osmo_io/osmo_io_test.c
+soft_uart_soft_uart_test_SOURCES = soft_uart/soft_uart_test.c +
# The `:;' works around a Bash 3.2 bug when the output is not writeable. $(srcdir)/package.m4: $(top_srcdir)/configure.ac @@ -693,6 +696,8 @@ osmo_io/osmo_io_test \ >$(srcdir)/osmo_io/osmo_io_test.ok \ 2>$(srcdir)/osmo_io/osmo_io_test.err + soft_uart/soft_uart_test \ + >$(srcdir)/soft_uart/soft_uart.ok
check-local: atconfig $(TESTSUITE) diff --git a/tests/soft_uart/soft_uart_test.c b/tests/soft_uart/soft_uart_test.c new file mode 100644 index 0000000..54d02b1 --- /dev/null +++ b/tests/soft_uart/soft_uart_test.c @@ -0,0 +1,211 @@ +/* + * (C) 2023 by sysmocom - s.f.m.c. GmbH info@sysmocom.de + * Author: Vadim Yanitskiy vyanitskiy@sysmocom.de + * + * All Rights Reserved + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <stdio.h> +#include <stdint.h> + +#include <osmocom/core/msgb.h> +#include <osmocom/core/utils.h> +#include <osmocom/core/soft_uart.h> + +static void suart_rx_cb(void *priv, struct msgb *msg, unsigned int flags) +{ + fprintf(stdout, "%s(flags=%02x): %s\n", + __func__, flags, msgb_hexdump(msg)); + msgb_free(msg); +} + +static const struct osmo_soft_uart_cfg suart_default_cfg = { + .num_data_bits = 8, + .num_stop_bits = 1, + .parity_mode = OSMO_SUART_PARITY_NONE, + .tx_buf_size = 1024, + .rx_buf_size = 1024, + .rx_pull_mode = OSMO_SUART_RX_MODE_N_FRAMES, + .rx_pull_param = { .rx_n_uart_frames = 1 }, + .rx_cb = &suart_rx_cb, +}; + +static void test_rx_exec(struct osmo_soft_uart *suart, + const char *input) +{ + for (unsigned int i = 0; input[i] != '\0'; i++) { + ubit_t ubit; + + switch (input[i]) { + case '0': + case '1': + ubit = input[i] - '0'; + osmo_soft_uart_rx_ubits(suart, &ubit, 1); + break; + case ' ': /* padding */ + continue; + default: + printf("%s() @ %u: unknown opcode '%c'\n", + __func__, i, input[i]); + break; + } + } +} + +static void test_rx(void) +{ + struct osmo_soft_uart_cfg cfg; + struct osmo_soft_uart *suart; + + suart = osmo_soft_uart_alloc(NULL, &suart_default_cfg); + OSMO_ASSERT(suart != NULL); + + osmo_soft_uart_set_rx(suart, true); + + printf("======== %s(): testing 8-N-1\n", __func__); + test_rx_exec(suart, + "111111111111" /* no data */ + "0 00010010 1" /* 'H' */ + "0 10100010 1" /* 'E' */ + "111111111111" /* no data */ + "0 00110010 1" /* 'L' */ + "0 00110010 1" /* 'L' */ + "111111111111" /* no data */ + "0 11110010 1" /* 'O' */ + ); + + printf("======== %s(): testing 8-N-2\n", __func__); + cfg = suart_default_cfg; + cfg.num_stop_bits = 2; + osmo_soft_uart_configure(suart, &cfg); + test_rx_exec(suart, + "1111111111111" /* no data */ + "0 00010010 11" /* 'H' */ + "0 10100010 11" /* 'E' */ + "0 00110010 11" /* 'L' */ + "0 00110010 11" /* 'L' */ + "0 11110010 11" /* 'O' */ + "1111111111111" /* no data */ + "1111111111111" /* no data */ + ); + + + printf("======== %s(): testing 8-E-1\n", __func__); + cfg = suart_default_cfg; + cfg.parity_mode = OSMO_SUART_PARITY_EVEN; + osmo_soft_uart_configure(suart, &cfg); + test_rx_exec(suart, + "0 00000000 1 1" /* invalid parity (odd) */ + "0 10000000 0 1" /* invalid parity (odd) */ + "0 11111111 1 1" /* invalid parity (odd) */ + "0 00000000 0 1" + "0 11111111 0 1" + "0 01010101 0 1" + "0 10101010 0 1" + "0 00000001 1 1" + "0 00000111 1 1" + "0 00011111 1 1" + "0 01111111 1 1" + ); + + printf("======== %s(): testing 8-O-1\n", __func__); + cfg = suart_default_cfg; + cfg.parity_mode = OSMO_SUART_PARITY_ODD; + osmo_soft_uart_configure(suart, &cfg); + test_rx_exec(suart, + "0 00000000 0 1" /* invalid parity (even) */ + "0 10000000 1 1" /* invalid parity (even) */ + "0 11111111 0 1" /* invalid parity (even) */ + "0 00000000 1 1" + "0 11111111 1 1" + "0 01010101 1 1" + "0 10101010 1 1" + "0 00000001 0 1" + "0 00000111 0 1" + "0 00011111 0 1" + "0 01111111 0 1" + ); + + osmo_soft_uart_free(suart); +} + +static void test_tx_exec(struct osmo_soft_uart *suart, + const char *tx_data, size_t tx_data_len, + unsigned int n_bits) +{ + ubit_t tx_buf[64]; + + OSMO_ASSERT((tx_data_len * n_bits) <= sizeof(tx_buf)); + + osmo_soft_uart_tx(suart, (const uint8_t *)tx_data, tx_data_len); + osmo_soft_uart_tx_ubits(suart, &tx_buf[0], n_bits * tx_data_len); + + printf("%s():", __func__); + for (size_t i = 0; i < (tx_data_len * n_bits); i += n_bits) + printf(" %s", osmo_ubit_dump(&tx_buf[i], n_bits)); + printf("\n"); +} + +static void test_tx_rx(void) +{ + struct osmo_soft_uart_cfg cfg; + struct osmo_soft_uart *suart; + + suart = osmo_soft_uart_alloc(NULL, &suart_default_cfg); + OSMO_ASSERT(suart != NULL); + + osmo_soft_uart_set_tx(suart, true); + + printf("======== %s(): testing 8-N-1\n", __func__); + test_tx_exec(suart, "\xde\xad\xbe\xef", 4, (1 + 8 + 1)); + test_tx_exec(suart, "\x00\xaa\x55\xff", 4, (1 + 8 + 1)); + + printf("======== %s(): testing 8-E-1\n", __func__); + cfg = suart_default_cfg; + cfg.parity_mode = OSMO_SUART_PARITY_EVEN; + osmo_soft_uart_configure(suart, &cfg); + test_tx_exec(suart, "\xde\xad\xbe\xef", 4, (1 + 8 + 1 + 1)); + test_tx_exec(suart, "\x00\xaa\x55\xff", 4, (1 + 8 + 1 + 1)); + + printf("======== %s(): testing 8-O-1\n", __func__); + cfg = suart_default_cfg; + cfg.parity_mode = OSMO_SUART_PARITY_ODD; + osmo_soft_uart_configure(suart, &cfg); + test_tx_exec(suart, "\xde\xad\xbe\xef", 4, (1 + 8 + 1 + 1)); + test_tx_exec(suart, "\x00\xaa\x55\xff", 4, (1 + 8 + 1 + 1)); + + printf("======== %s(): testing 8-N-2\n", __func__); + cfg = suart_default_cfg; + cfg.num_stop_bits = 2; + osmo_soft_uart_configure(suart, &cfg); + test_tx_exec(suart, "\xde\xad\xbe\xef", 4, (1 + 8 + 2)); + test_tx_exec(suart, "\x00\xaa\x55\xff", 4, (1 + 8 + 2)); + + printf("======== %s(): testing 6-N-1\n", __func__); + cfg = suart_default_cfg; + cfg.num_data_bits = 6; + osmo_soft_uart_configure(suart, &cfg); + test_tx_exec(suart, "\xde\xad\xbe\xef", 4, (1 + 6 + 1)); + test_tx_exec(suart, "\x00\xaa\x55\xff", 4, (1 + 6 + 1)); + + osmo_soft_uart_free(suart); +} + +int main(int argc, char **argv) +{ + test_rx(); + test_tx_rx(); + + return 0; +} diff --git a/tests/soft_uart/soft_uart_test.ok b/tests/soft_uart/soft_uart_test.ok new file mode 100644 index 0000000..b9eb0fd --- /dev/null +++ b/tests/soft_uart/soft_uart_test.ok @@ -0,0 +1,51 @@ +======== test_rx(): testing 8-N-1 +suart_rx_cb(flags=00): 48 +suart_rx_cb(flags=00): 45 +suart_rx_cb(flags=00): 4c +suart_rx_cb(flags=00): 4c +suart_rx_cb(flags=00): 4f +======== test_rx(): testing 8-N-2 +suart_rx_cb(flags=00): 48 +suart_rx_cb(flags=00): 45 +suart_rx_cb(flags=00): 4c +suart_rx_cb(flags=00): 4c +suart_rx_cb(flags=00): 4f +======== test_rx(): testing 8-E-1 +suart_rx_cb(flags=02): 00 +suart_rx_cb(flags=02): 01 +suart_rx_cb(flags=02): ff +suart_rx_cb(flags=00): 00 +suart_rx_cb(flags=00): ff +suart_rx_cb(flags=00): aa +suart_rx_cb(flags=00): 55 +suart_rx_cb(flags=00): 80 +suart_rx_cb(flags=00): e0 +suart_rx_cb(flags=00): f8 +suart_rx_cb(flags=00): fe +======== test_rx(): testing 8-O-1 +suart_rx_cb(flags=02): 00 +suart_rx_cb(flags=02): 01 +suart_rx_cb(flags=02): ff +suart_rx_cb(flags=00): 00 +suart_rx_cb(flags=00): ff +suart_rx_cb(flags=00): aa +suart_rx_cb(flags=00): 55 +suart_rx_cb(flags=00): 80 +suart_rx_cb(flags=00): e0 +suart_rx_cb(flags=00): f8 +suart_rx_cb(flags=00): fe +======== test_tx_rx(): testing 8-N-1 +test_tx_exec(): 0011110111 0101101011 0011111011 0111101111 +test_tx_exec(): 0000000001 0010101011 0101010101 0111111111 +======== test_tx_rx(): testing 8-E-1 +test_tx_exec(): 00111101101 01011010111 00111110101 01111011111 +test_tx_exec(): 00000000001 00101010101 01010101001 01111111101 +======== test_tx_rx(): testing 8-O-1 +test_tx_exec(): 00111101111 01011010101 00111110111 01111011101 +test_tx_exec(): 00000000011 00101010111 01010101011 01111111111 +======== test_tx_rx(): testing 8-N-2 +test_tx_exec(): 00111101111 01011010111 00111110111 01111011111 +test_tx_exec(): 00000000011 00101010111 01010101011 01111111111 +======== test_tx_rx(): testing 6-N-1 +test_tx_exec(): 00111101 01011011 00111111 01111011 +test_tx_exec(): 00000001 00101011 01010101 01111111 diff --git a/tests/testsuite.at b/tests/testsuite.at index 73c3cdc..aacdad7 100644 --- a/tests/testsuite.at +++ b/tests/testsuite.at @@ -513,3 +513,9 @@ cat $abs_srcdir/osmo_io/osmo_io_test.err > experr AT_CHECK([$abs_top_builddir/tests/osmo_io/osmo_io_test], [0], [expout], [experr]) AT_CLEANUP + +AT_SETUP([soft_uart]) +AT_KEYWORDS([soft_uart]) +cat $abs_srcdir/soft_uart/soft_uart_test.ok > expout +AT_CHECK([$abs_top_builddir/tests/soft_uart/soft_uart_test], [0], [expout], [ignore]) +AT_CLEANUP
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fixeria