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X-Received-From: 94.100.177.105 Subject: [Qemu-devel] [PATCH v4 3/3] tests/microbit-test: Check nRF51 UART functionality X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Julia Suvorova via Qemu-devel Reply-To: Julia Suvorova Cc: Laurent Vivier , Peter Maydell , Thomas Huth , =?UTF-8?q?Steffen=20G=C3=B6rtz?= , Jim Mussared , Joel Stanley , Stefan Hajnoczi , Paolo Bonzini , Julia Suvorova Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Some functional tests for: Basic reception/transmittion Suspending INTEN* registers Signed-off-by: Julia Suvorova --- tests/microbit-test.c | 84 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) diff --git a/tests/microbit-test.c b/tests/microbit-test.c index afeb6b082a..3da6d9529f 100644 --- a/tests/microbit-test.c +++ b/tests/microbit-test.c @@ -19,10 +19,93 @@ #include "libqtest.h" =20 #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" =20 +#include +#include + +static bool uart_wait_for_event(QTestState *qts, uint32_t event_addr) +{ + int i; + + for (i =3D 0; i < 1000; i++) { + if (qtest_readl(qts, event_addr) =3D=3D 1) { + qtest_writel(qts, event_addr, 0x00); + return true; + } + 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 =3D strlen(in); + + g_assert(write(sock_fd, in, in_len) =3D=3D in_len); + for (i =3D 0; i < in_len; i++) { + g_assert(uart_wait_for_event(qts, NRF51_UART_BASE + A_UART_RXDRDY)= ); + out[i] =3D qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD); + } + out[i] =3D '\0'; +} + +static void uart_w_to_txd(QTestState *qts, const char *in) +{ + int i, in_len =3D strlen(in); + + for (i =3D 0; i < in_len; i++) { + qtest_writel(qts, NRF51_UART_BASE + A_UART_TXD, in[i]); + g_assert(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 =3D qtest_init_with_serial("-M microbit", &sock_fd); + + g_assert(write(sock_fd, "c", 1) =3D=3D 1); + g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD) =3D=3D 0); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_ENABLE, 0x04); + qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTRX, 0x01); + + g_assert(uart_wait_for_event(qts, NRF51_UART_BASE + A_UART_RXDRDY)); + qtest_writel(qts, NRF51_UART_BASE + A_UART_RXDRDY, 0x00); + g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD) =3D=3D 'c'); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENSET, 0x04); + g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN) =3D=3D 0x04); + qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENCLR, 0x04); + g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN) =3D=3D 0x00); + + uart_rw_to_rxd(qts, sock_fd, "hello", s); + g_assert(memcmp(s, "hello", 5) =3D=3D 0); + + qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTTX, 0x01); + uart_w_to_txd(qts, "d"); + g_assert(read(sock_fd, s, 10) =3D=3D 1); + g_assert(s[0] =3D=3D '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(read(sock_fd, s, 10) =3D=3D 5); + g_assert(memcmp(s, "world", 5) =3D=3D 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 +385,7 @@ int main(int argc, char **argv) { g_test_init(&argc, &argv, NULL); =20 + 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); --=20 2.17.1