diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/microbit-test.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/tests/microbit-test.c b/tests/microbit-test.c index afeb6b0..3bad947 100644 --- a/tests/microbit-test.c +++ b/tests/microbit-test.c @@ -19,10 +19,98 @@ #include "libqtest.h" #include "hw/arm/nrf51.h" +#include "hw/char/nrf51_uart.h" #include "hw/gpio/nrf51_gpio.h" #include "hw/timer/nrf51_timer.h" #include "hw/i2c/microbit_i2c.h" +static bool uart_wait_for_event(QTestState *qts, uint32_t event_addr) +{ + time_t now, start = time(NULL); + + while (true) { + if (qtest_readl(qts, event_addr) == 1) { + qtest_writel(qts, event_addr, 0x00); + return true; + } + + /* Wait at most 10 minutes */ + now = time(NULL); + if (now - start > 600) { + break; + } + g_usleep(10000); + } + + return false; +} + +static void uart_rw_to_rxd(QTestState *qts, int sock_fd, const char *in, + char *out) +{ + int i, in_len = strlen(in); + + g_assert_true(write(sock_fd, in, in_len) == in_len); + for (i = 0; i < in_len; i++) { + g_assert_true(uart_wait_for_event(qts, NRF51_UART_BASE + + A_UART_RXDRDY)); + out[i] = qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD); + } + out[i] = '\0'; +} + +static void uart_w_to_txd(QTestState *qts, const char *in) +{ + int i, in_len = strlen(in); + + for (i = 0; i < in_len; i++) { + qtest_writel(qts, NRF51_UART_BASE + A_UART_TXD, in[i]); + g_assert_true(uart_wait_for_event(qts, NRF51_UART_BASE + + A_UART_TXDRDY)); + } +} + +static void test_nrf51_uart(void) +{ + int sock_fd; + char s[10]; + QTestState *qts = qtest_init_with_serial("-M microbit", &sock_fd); + + g_assert_true(write(sock_fd, "c", 1) == 1); + g_assert_cmphex(qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD), ==, 0x00); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_ENABLE, 0x04); + qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTRX, 0x01); + + g_assert_true(uart_wait_for_event(qts, NRF51_UART_BASE + A_UART_RXDRDY)); + qtest_writel(qts, NRF51_UART_BASE + A_UART_RXDRDY, 0x00); + g_assert_cmphex(qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD), ==, 'c'); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENSET, 0x04); + g_assert_cmphex(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN), ==, 0x04); + qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENCLR, 0x04); + g_assert_cmphex(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN), ==, 0x00); + + uart_rw_to_rxd(qts, sock_fd, "hello", s); + g_assert_true(memcmp(s, "hello", 5) == 0); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTTX, 0x01); + uart_w_to_txd(qts, "d"); + g_assert_true(read(sock_fd, s, 10) == 1); + g_assert_cmphex(s[0], ==, 'd'); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_SUSPEND, 0x01); + qtest_writel(qts, NRF51_UART_BASE + A_UART_TXD, 'h'); + qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTTX, 0x01); + uart_w_to_txd(qts, "world"); + g_assert_true(read(sock_fd, s, 10) == 5); + g_assert_true(memcmp(s, "world", 5) == 0); + + close(sock_fd); + + qtest_quit(qts); +} + /* Read a byte from I2C device at @addr from register @reg */ static uint32_t i2c_read_byte(QTestState *qts, uint32_t addr, uint32_t reg) { @@ -302,6 +390,7 @@ int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); + qtest_add_func("/microbit/nrf51/uart", test_nrf51_uart); qtest_add_func("/microbit/nrf51/gpio", test_nrf51_gpio); qtest_add_func("/microbit/nrf51/timer", test_nrf51_timer); qtest_add_func("/microbit/microbit/i2c", test_microbit_i2c); |