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qemu-e2k/tests/qtest/microbit-test.c
Daniel P. Berrangé 81395b6ec8 microbit: add missing qtest_quit() call 
Without this call, the QEMU process is being left running which on
FreeBSD 13.2 at least, makes meson think the test is still running,
and thus execution of "make check" continues forever.

This fixes the regression introduced in:

  commit a9c9bbee85
  Author: Chris Laplante <chris@laplante.io>
  Date:   Tue Aug 22 17:31:02 2023 +0100

    qtest: microbit-test: add tests for nRF51 DETECT

Fixes: https://gitlab.com/qemu-project/qemu/-/issues/1882
Signed-off-by: "Daniel P. Berrangé" <berrange@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230912184130.3056054-2-berrange@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230914155422.426639-5-alex.bennee@linaro.org>
2023-09-20 15:06:33 +01:00

554 lines
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/*
* 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_cmpuint(val, ==, 0x5A);
val = i2c_read_byte(qts, 0x3A, 0x0D);
g_assert_cmpuint(val, ==, 0x5A);
/* LSM303 accelerometer detection */
val = i2c_read_byte(qts, 0x3C, 0x4F);
g_assert_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(actual, ==, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmpuint(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_cmpuint(actual, ==, 0x00000000);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_START)
& 0x01;
g_assert_cmpuint(actual, ==, 0x00);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmpuint(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_cmpuint(actual, ==, 0x01);
actual = qtest_readl(qts, NRF51_GPIO_BASE + NRF51_GPIO_REG_CNF_END) & 0x01;
g_assert_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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_cmpuint(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();
}
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