diff mbox series

[v4,3/3] tests/microbit-test: Check nRF51 UART functionality

Message ID 20190117161640.5496-4-jusual@mail.ru
State New
Headers show
Series tests/microbit-test: Add UART device test | expand

Commit Message

Cameron Esfahani via Jan. 17, 2019, 4:16 p.m. UTC
Some functional tests for:
    Basic reception/transmittion
    Suspending
    INTEN* registers

Signed-off-by: Julia Suvorova <jusual@mail.ru>
---
 tests/microbit-test.c | 84 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)

Comments

Stefan Hajnoczi Jan. 17, 2019, 5:41 p.m. UTC | #1
On Thu, Jan 17, 2019 at 07:16:40PM +0300, Julia Suvorova wrote:
> 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"
>  
>  #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"
>  
> +#include <sys/socket.h>
> +#include <sys/un.h>

./HACKING "1.2. Include directives" requires putting system header
includes (<>) right after #include "qemu/osdep.h".

But are these includes really needed?  This code doesn't use Sockets API
calls like send(2)/recv(2)/shutdown(2) or UNIX Domain Sockets specifics
like struct sockaddr_un.

I suggest dropping these includes (plus they are pulled in implicitly by
osdep.h anyway).

Peter: If there are no other issues with this patch series, could you
remove these two includes when merging?  Thanks!
Thomas Huth Jan. 21, 2019, 12:51 p.m. UTC | #2
On 2019-01-17 17:16, Julia Suvorova via Qemu-devel wrote:
> Some functional tests for:
>     Basic reception/transmittion
>     Suspending
>     INTEN* registers
> 
> Signed-off-by: Julia Suvorova <jusual@mail.ru>
> ---
>  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"
>  
>  #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"
>  
> +#include <sys/socket.h>
> +#include <sys/un.h>
> +
> +static bool uart_wait_for_event(QTestState *qts, uint32_t event_addr)
> +{
> +    int i;
> +
> +    for (i = 0; i < 1000; i++) {
> +        if (qtest_readl(qts, event_addr) == 1) {
> +            qtest_writel(qts, event_addr, 0x00);
> +            return true;
> +        }
> +        g_usleep(10000);
> +    }

So this times out after 10 seconds? ... this is likely plenty on a
normal host, but we run the tests on overloaded CI systems sometimes,
where 10 seconds are not that much...

I'd suggest to replace the condition in the for-loop with "i < 30000" or
even "i < 60000", just to be sure.

> +    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(write(sock_fd, in, in_len) == in_len);

Sorry for being pedantic, but I'd really prefer to write it without
side-effects in g_assert() please. (same for the other occurrences in
this patch)

 Thomas
Alex Bennée Jan. 21, 2019, 3:35 p.m. UTC | #3
Thomas Huth <thuth@redhat.com> writes:

> On 2019-01-17 17:16, Julia Suvorova via Qemu-devel wrote:
>> Some functional tests for:
>>     Basic reception/transmittion
>>     Suspending
>>     INTEN* registers
>>
>> Signed-off-by: Julia Suvorova <jusual@mail.ru>
>> ---
>>  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"
>>
>>  #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"
>>
>> +#include <sys/socket.h>
>> +#include <sys/un.h>
>> +
>> +static bool uart_wait_for_event(QTestState *qts, uint32_t event_addr)
>> +{
>> +    int i;
>> +
>> +    for (i = 0; i < 1000; i++) {
>> +        if (qtest_readl(qts, event_addr) == 1) {
>> +            qtest_writel(qts, event_addr, 0x00);
>> +            return true;
>> +        }
>> +        g_usleep(10000);
>> +    }
>
> So this times out after 10 seconds? ... this is likely plenty on a
> normal host, but we run the tests on overloaded CI systems sometimes,
> where 10 seconds are not that much...
>
> I'd suggest to replace the condition in the for-loop with "i < 30000" or
> even "i < 60000", just to be sure.

Or use a g_timer and look at elapsed time rather than having open coded loops?

>
>> +    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(write(sock_fd, in, in_len) == in_len);
>
> Sorry for being pedantic, but I'd really prefer to write it without
> side-effects in g_assert() please. (same for the other occurrences in
> this patch)

+1

--
Alex Bennée
diff mbox series

Patch

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"
 
 #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"
 
+#include <sys/socket.h>
+#include <sys/un.h>
+
+static bool uart_wait_for_event(QTestState *qts, uint32_t event_addr)
+{
+    int i;
+
+    for (i = 0; i < 1000; i++) {
+        if (qtest_readl(qts, event_addr) == 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 = strlen(in);
+
+    g_assert(write(sock_fd, in, in_len) == in_len);
+    for (i = 0; i < in_len; i++) {
+        g_assert(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(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(write(sock_fd, "c", 1) == 1);
+    g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_RXD) == 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) == 'c');
+
+    qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENSET, 0x04);
+    g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN) == 0x04);
+    qtest_writel(qts, NRF51_UART_BASE + A_UART_INTENCLR, 0x04);
+    g_assert(qtest_readl(qts, NRF51_UART_BASE + A_UART_INTEN) == 0x00);
+
+    uart_rw_to_rxd(qts, sock_fd, "hello", s);
+    g_assert(memcmp(s, "hello", 5) == 0);
+
+    qtest_writel(qts, NRF51_UART_BASE + A_UART_STARTTX, 0x01);
+    uart_w_to_txd(qts, "d");
+    g_assert(read(sock_fd, s, 10) == 1);
+    g_assert(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(read(sock_fd, s, 10) == 5);
+    g_assert(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 +385,7 @@  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);