mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
b1e35c760a
qemu/tests/qtest/microbit-test.c
Inès Varhol 58045186fc tests/qtest : Use g_assert_cmphex instead of g_assert_cmpuint 
The messages for assertions using hexadecimal numbers will be
easier to understand with `g_assert_cmphex`.

Cases changed : "cmpuint.*0x", "cmpuint.*<<"

Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Ninad Palsule <ninad@linux.ibm.com>
Message-ID: <20240414173349.31194-1-ines.varhol@telecom-paris.fr>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-04-25 07:03:04 +02:00

554 lines
20 KiB
C
Raw Blame History

/*
* QTest testcase for Microbit board using the Nordic Semiconductor nRF51 SoC.
*
* nRF51:
* Reference Manual: http://infocenter.nordicsemi.com/pdf/nRF51_RM_v3.0.pdf
* Product Spec: http://infocenter.nordicsemi.com/pdf/nRF51822_PS_v3.1.pdf
*
* Microbit Board: http://microbit.org/
*
* Copyright 2018 Steffen Görtz <contrib@steffen-goertz.de>
*
* This code is licensed under the GPL version 2 or later. See
* the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "exec/hwaddr.h"
#include "libqtest.h"
#include "hw/arm/nrf51.h"
#include "hw/char/nrf51_uart.h"
#include "hw/gpio/nrf51_gpio.h"
#include "hw/nvram/nrf51_nvm.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(send(sock_fd, in, in_len, 0) == 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(send(sock_fd, "c", 1, 0) == 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(recv(sock_fd, s, 10, 0) == 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(recv(sock_fd, s, 10, 0) == 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)
{
uint32_t val;
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_REG_ADDRESS, addr);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_TASK_STARTTX, 1);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_REG_TXD, reg);
val = qtest_readl(qts, NRF51_TWI_BASE + NRF51_TWI_EVENT_TXDSENT);
g_assert_cmpuint(val, ==, 1);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_TASK_STOP, 1);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_TASK_STARTRX, 1);
val = qtest_readl(qts, NRF51_TWI_BASE + NRF51_TWI_EVENT_RXDREADY);
g_assert_cmpuint(val, ==, 1);
val = qtest_readl(qts, NRF51_TWI_BASE + NRF51_TWI_REG_RXD);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_TASK_STOP, 1);
return val;
}
static void test_microbit_i2c(void)
{
uint32_t val;
QTestState *qts = qtest_init("-M microbit");
/* We don't program pins/irqs but at least enable the device */
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_REG_ENABLE, 5);
/* MMA8653 magnetometer detection */
val = i2c_read_byte(qts, 0x3A, 0x0D);
g_assert_cmphex(val, ==, 0x5A);
val = i2c_read_byte(qts, 0x3A, 0x0D);
g_assert_cmphex(val, ==, 0x5A);
/* LSM303 accelerometer detection */
val = i2c_read_byte(qts, 0x3C, 0x4F);
g_assert_cmphex(val, ==, 0x40);
qtest_writel(qts, NRF51_TWI_BASE + NRF51_TWI_REG_ENABLE, 0);
qtest_quit(qts);
}
#define FLASH_SIZE (256 * NRF51_PAGE_SIZE)
static void fill_and_erase(QTestState *qts, hwaddr base, hwaddr size,
uint32_t address_reg)
{
hwaddr i;
/* Erase Page */
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x02);
qtest_writel(qts, NRF51_NVMC_BASE + address_reg, base);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
/* Check memory */
for (i = 0; i < size / 4; i++) {
g_assert_cmphex(qtest_readl(qts, base + i * 4), ==, 0xFFFFFFFF);
}
/* Fill memory */
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x01);
for (i = 0; i < size / 4; i++) {
qtest_writel(qts, base + i * 4, i);
g_assert_cmpuint(qtest_readl(qts, base + i * 4), ==, i);
}
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
}
static void test_nrf51_nvmc(void)
{
uint32_t value;
hwaddr i;
QTestState *qts = qtest_init("-M microbit");
/* Test always ready */
value = qtest_readl(qts, NRF51_NVMC_BASE + NRF51_NVMC_READY);
g_assert_cmphex(value & 0x01, ==, 0x01);
/* Test write-read config register */
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x03);
g_assert_cmpuint(qtest_readl(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG),
==, 0x03);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
g_assert_cmpuint(qtest_readl(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG),
==, 0x00);
/* Test PCR0 */
fill_and_erase(qts, NRF51_FLASH_BASE, NRF51_PAGE_SIZE,
NRF51_NVMC_ERASEPCR0);
fill_and_erase(qts, NRF51_FLASH_BASE + NRF51_PAGE_SIZE,
NRF51_PAGE_SIZE, NRF51_NVMC_ERASEPCR0);
/* Test PCR1 */
fill_and_erase(qts, NRF51_FLASH_BASE, NRF51_PAGE_SIZE,
NRF51_NVMC_ERASEPCR1);
fill_and_erase(qts, NRF51_FLASH_BASE + NRF51_PAGE_SIZE,
NRF51_PAGE_SIZE, NRF51_NVMC_ERASEPCR1);
/* Erase all */
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x02);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_ERASEALL, 0x01);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x01);
for (i = 0; i < FLASH_SIZE / 4; i++) {
qtest_writel(qts, NRF51_FLASH_BASE + i * 4, i);
g_assert_cmpuint(qtest_readl(qts, NRF51_FLASH_BASE + i * 4), ==, i);
}
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x02);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_ERASEALL, 0x01);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
for (i = 0; i < FLASH_SIZE / 4; i++) {
g_assert_cmpuint(qtest_readl(qts, NRF51_FLASH_BASE + i * 4),
==, 0xFFFFFFFF);
}
/* Erase UICR */
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x02);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_ERASEUICR, 0x01);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
for (i = 0; i < NRF51_UICR_SIZE / 4; i++) {
g_assert_cmpuint(qtest_readl(qts, NRF51_UICR_BASE + i * 4),
==, 0xFFFFFFFF);
}
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x01);
for (i = 0; i < NRF51_UICR_SIZE / 4; i++) {
qtest_writel(qts, NRF51_UICR_BASE + i * 4, i);
g_assert_cmpuint(qtest_readl(qts, NRF51_UICR_BASE + i * 4), ==, i);
}
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x02);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_ERASEUICR, 0x01);
qtest_writel(qts, NRF51_NVMC_BASE + NRF51_NVMC_CONFIG, 0x00);
for (i = 0; i < NRF51_UICR_SIZE / 4; i++) {
g_assert_cmpuint(qtest_readl(qts, NRF51_UICR_BASE + i * 4),
==, 0xFFFFFFFF);
}
qtest_quit(qts);
}
static void test_nrf51_gpio(void)
{
size_t i;
uint32_t actual, expected;
struct {
hwaddr addr;
uint32_t expected;
} const reset_state[] = {
{NRF51_GPIO_REG_OUT, 0x00000000}, {NRF51_GPIO_REG_OUTSET, 0x00000000},
{NRF51_GPIO_REG_OUTCLR, 0x00000000}, {NRF51_GPIO_REG_IN, 0x00000000},
{NRF51_GPIO_REG_DIR, 0x00000000}, {NRF51_GPIO_REG_DIRSET, 0x00000000},
{NRF51_GPIO_REG_DIRCLR, 0x00000000}
};
QTestState *qts = qtest_init("-M microbit");
/* Check reset state */
for (i = 0; i < ARRAY_SIZE(reset_state); i++) {
expected = reset_state[i].expected;
actual = qtest_readl(qts, NRF51_GPIO_BASE + reset_state[i].addr);
g_assert_cmpuint(actual, ==, expected);
}
for (i = 0; i < NRF51_GPIO_PINS; i++) {
expected = 0x00000002;
actual = qtest_readl(qts, NRF51_GPIO_BASE +
NRF51_GPIO_REG_CNF_START + i * 4);
g_assert_cmpuint(actual, ==, expected);
}
/* Check dir bit consistency between dir and cnf */
/* Check set via DIRSET */
expected = 0x80000001;
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIRSET, expected);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
g_assert_cmpuint(actual, ==, expected);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START)
& 0x01;
g_assert_cmphex(actual, ==, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
/* Check clear via DIRCLR */
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIRCLR, 0x80000001);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
g_assert_cmphex(actual, ==, 0x00000000);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START)
& 0x01;
g_assert_cmphex(actual, ==, 0x00);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmphex(actual, ==, 0x00);
/* Check set via DIR */
expected = 0x80000001;
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR, expected);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR);
g_assert_cmpuint(actual, ==, expected);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START)
& 0x01;
g_assert_cmphex(actual, ==, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
/* Reset DIR */
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_DIR, 0x00000000);
/* Check Input propagates */
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x00);
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x00);
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, -1);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
/* Check pull-up working */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0000);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x00);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b1110);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
/* Check pull-down working */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0000);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0110);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x00);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0x02);
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, -1);
/* Check Output propagates */
qtest_irq_intercept_out(qts, "/machine/nrf51");
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b0011);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
g_assert_true(qtest_get_irq(qts, 0));
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTCLR, 0x01);
g_assert_false(qtest_get_irq(qts, 0));
/* Check self-stimulation */
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTCLR, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN) & 0x01;
g_assert_cmphex(actual, ==, 0x00);
/*
* Check short-circuit - generates an guest_error which must be checked
* manually as long as qtest can not scan qemu_log messages
*/
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START, 0b01);
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_OUTSET, 0x01);
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
qtest_quit(qts);
}
static void test_nrf51_gpio_detect(void)
{
QTestState *qts = qtest_init("-M microbit");
int i;
/* Connect input buffer on pins 1-7, configure SENSE for high level */
for (i = 1; i <= 7; i++) {
qtest_writel(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START + i * 4,
deposit32(0, 16, 2, 2));
}
qtest_irq_intercept_out_named(qts, "/machine/nrf51/gpio", "detect");
for (i = 1; i <= 7; i++) {
/* Set pin high */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 1);
uint32_t actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN);
g_assert_cmphex(actual, ==, 1 << i);
/* Check that DETECT is high */
g_assert_true(qtest_get_irq(qts, 0));
/* Set pin low, check that DETECT goes low. */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 0);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_IN);
g_assert_cmphex(actual, ==, 0x0);
g_assert_false(qtest_get_irq(qts, 0));
}
/* Set pin 0 high, check that DETECT doesn't fire */
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 1);
g_assert_false(qtest_get_irq(qts, 0));
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 0, 0);
/* Set pins 1, 2, and 3 high, then set 3 low. Check DETECT is still high */
for (i = 1; i <= 3; i++) {
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", i, 1);
}
g_assert_true(qtest_get_irq(qts, 0));
qtest_set_irq_in(qts, "/machine/nrf51", "unnamed-gpio-in", 3, 0);
g_assert_true(qtest_get_irq(qts, 0));
qtest_quit(qts);
}
static void timer_task(QTestState *qts, hwaddr task)
{
qtest_writel(qts, NRF51_TIMER_BASE + task, NRF51_TRIGGER_TASK);
}
static void timer_clear_event(QTestState *qts, hwaddr event)
{
qtest_writel(qts, NRF51_TIMER_BASE + event, NRF51_EVENT_CLEAR);
}
static void timer_set_bitmode(QTestState *qts, uint8_t mode)
{
qtest_writel(qts, NRF51_TIMER_BASE + NRF51_TIMER_REG_BITMODE, mode);
}
static void timer_set_prescaler(QTestState *qts, uint8_t prescaler)
{
qtest_writel(qts, NRF51_TIMER_BASE + NRF51_TIMER_REG_PRESCALER, prescaler);
}
static void timer_set_cc(QTestState *qts, size_t idx, uint32_t value)
{
qtest_writel(qts, NRF51_TIMER_BASE + NRF51_TIMER_REG_CC0 + idx * 4, value);
}
static void timer_assert_events(QTestState *qts, uint32_t ev0, uint32_t ev1,
uint32_t ev2, uint32_t ev3)
{
g_assert(qtest_readl(qts, NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_0)
== ev0);
g_assert(qtest_readl(qts, NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_1)
== ev1);
g_assert(qtest_readl(qts, NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_2)
== ev2);
g_assert(qtest_readl(qts, NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_3)
== ev3);
}
static void test_nrf51_timer(void)
{
uint32_t steps_to_overflow = 408;
QTestState *qts = qtest_init("-M microbit");
/* Compare Match */
timer_task(qts, NRF51_TIMER_TASK_STOP);
timer_task(qts, NRF51_TIMER_TASK_CLEAR);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_0);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_1);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_2);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_3);
timer_set_bitmode(qts, NRF51_TIMER_WIDTH_16); /* 16 MHz Timer */
timer_set_prescaler(qts, 0);
/* Swept over, during the first step */
timer_set_cc(qts, 0, 2);
/* Barely miss, after the second step */
timer_set_cc(qts, 1, 162);
/* Spot on, after the third step */
timer_set_cc(qts, 2, 480);
timer_assert_events(qts, 0, 0, 0, 0);
timer_task(qts, NRF51_TIMER_TASK_START);
qtest_clock_step(qts, 10000);
timer_assert_events(qts, 1, 0, 0, 0);
/* Swept over on first overflow */
timer_set_cc(qts, 3, 114);
qtest_clock_step(qts, 10000);
timer_assert_events(qts, 1, 1, 0, 0);
qtest_clock_step(qts, 10000);
timer_assert_events(qts, 1, 1, 1, 0);
/* Wrap time until internal counter overflows */
while (steps_to_overflow--) {
timer_assert_events(qts, 1, 1, 1, 0);
qtest_clock_step(qts, 10000);
}
timer_assert_events(qts, 1, 1, 1, 1);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_0);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_1);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_2);
timer_clear_event(qts, NRF51_TIMER_EVENT_COMPARE_3);
timer_assert_events(qts, 0, 0, 0, 0);
timer_task(qts, NRF51_TIMER_TASK_STOP);
/* Test Proposal: Stop/Shutdown */
/* Test Proposal: Shortcut Compare -> Clear */
/* Test Proposal: Shortcut Compare -> Stop */
/* Test Proposal: Counter Mode */
qtest_quit(qts);
}
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/gpio_detect", test_nrf51_gpio_detect);
qtest_add_func("/microbit/nrf51/nvmc", test_nrf51_nvmc);
qtest_add_func("/microbit/nrf51/timer", test_nrf51_timer);
qtest_add_func("/microbit/microbit/i2c", test_microbit_i2c);
return g_test_run();
}
Reference in New Issue View Git Blame Copy Permalink