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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id j14sm46039759wrv.96.2019.01.07.08.32.00 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 07 Jan 2019 08:32:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=3nnR4nEBbhqKliNZdMczAgOP+r6YxxrbRQTA/sysIkQ=; b=e1EuNChTkWtKpRHsUD8O4470vaWtCPG7XF1kn2VvgOS8KtqUAj/IInMD52jiiIEA/h 534FAYBNvkg49r8CpFlg8a5tCF590iQIzsLr43MiE6awJtZCC5UD/mkXObPC7xeaZ/xR 5duz0TKR11KvZ8j6nMAfR5wQTentYkhHGurtM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3nnR4nEBbhqKliNZdMczAgOP+r6YxxrbRQTA/sysIkQ=; b=N7bzmhCqfgSEj6jsZOqWlybV5k6HI+hsaqRR2k0Ws5i9MJKGt/jnBXywjm0jzJP3zj iA7mkmraONPdoq8z9Q5TuC4u1yKj5RV9vf/cC6VAvfnciRaTzqljFYuE18Goh6epFHnT yiY++fm0KuhHQ2bb4nHNJgYh3TgSPRf9Ksd85eYNYyX1wxZZZtT72CfGgUvhtpgJdRkm zaUEF1ZwCeaw9U6W+zoyLzeJ0gZk4sB6uE2I+D1C+w+e6t+r7eBCaYr4/feRntLxaYOo 1yskCeMBesGoaD/pwYl4EyfbLnZ87dvLop8bX5fax8CHNlgyM9f/m/2ZaKjDYki/X7UN 6adQ== X-Gm-Message-State: AJcUukdv2gLyByDDDlwOpPPTzw6exfBoySCc0YrHD4Zt9gxU7Zwgjk7T YTQvtpGYHEVTywC7ph6mq/xNahqt+XmIeg== X-Google-Smtp-Source: ALg8bN6RlcvZ/uORk12qH2CAf4YAeNuAvlibwt4ZAxmBCDC1/jQRLtACE2l1XEnrc1j/EYcKIX6dQA== X-Received: by 2002:a05:6000:12c4:: with SMTP id l4mr50624622wrx.134.1546878721254; Mon, 07 Jan 2019 08:32:01 -0800 (PST) From: Peter Maydell To: qemu-devel@nongnu.org Date: Mon, 7 Jan 2019 16:31:13 +0000 Message-Id: <20190107163117.16269-34-peter.maydell@linaro.org> X-Mailer: git-send-email 2.19.2 In-Reply-To: <20190107163117.16269-1-peter.maydell@linaro.org> References: <20190107163117.16269-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2a00:1450:4864:20::433 Subject: [Qemu-devel] [PULL 33/37] tests/microbit-test: Add Tests for nRF51 Timer 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Steffen G=C3=B6rtz Basic tests for nRF51 Timer Peripheral. Signed-off-by: Steffen G=C3=B6rtz Reviewed-by: Stefan Hajnoczi Signed-off-by: Stefan Hajnoczi Message-id: 20190103091119.9367-11-stefanha@redhat.com Signed-off-by: Peter Maydell --- tests/microbit-test.c | 95 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) diff --git a/tests/microbit-test.c b/tests/microbit-test.c index f0a180cbc6f..0c125535f64 100644 --- a/tests/microbit-test.c +++ b/tests/microbit-test.c @@ -20,6 +20,7 @@ =20 #include "hw/arm/nrf51.h" #include "hw/gpio/nrf51_gpio.h" +#include "hw/timer/nrf51_timer.h" =20 static void test_nrf51_gpio(void) { @@ -143,6 +144,99 @@ static void test_nrf51_gpio(void) qtest_set_irq_in(global_qtest, "/machine/nrf51", "unnamed-gpio-in", 0,= 0); } =20 +static void timer_task(hwaddr task) +{ + writel(NRF51_TIMER_BASE + task, NRF51_TRIGGER_TASK); +} + +static void timer_clear_event(hwaddr event) +{ + writel(NRF51_TIMER_BASE + event, NRF51_EVENT_CLEAR); +} + +static void timer_set_bitmode(uint8_t mode) +{ + writel(NRF51_TIMER_BASE + NRF51_TIMER_REG_BITMODE, mode); +} + +static void timer_set_prescaler(uint8_t prescaler) +{ + writel(NRF51_TIMER_BASE + NRF51_TIMER_REG_PRESCALER, prescaler); +} + +static void timer_set_cc(size_t idx, uint32_t value) +{ + writel(NRF51_TIMER_BASE + NRF51_TIMER_REG_CC0 + idx * 4, value); +} + +static void timer_assert_events(uint32_t ev0, uint32_t ev1, uint32_t ev2, + uint32_t ev3) +{ + g_assert(readl(NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_0) =3D=3D = ev0); + g_assert(readl(NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_1) =3D=3D = ev1); + g_assert(readl(NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_2) =3D=3D = ev2); + g_assert(readl(NRF51_TIMER_BASE + NRF51_TIMER_EVENT_COMPARE_3) =3D=3D = ev3); +} + +static void test_nrf51_timer(void) +{ + uint32_t steps_to_overflow =3D 408; + + /* Compare Match */ + timer_task(NRF51_TIMER_TASK_STOP); + timer_task(NRF51_TIMER_TASK_CLEAR); + + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_0); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_1); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_2); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_3); + + timer_set_bitmode(NRF51_TIMER_WIDTH_16); /* 16 MHz Timer */ + timer_set_prescaler(0); + /* Swept over in first step */ + timer_set_cc(0, 2); + /* Barely miss on first step */ + timer_set_cc(1, 162); + /* Spot on on third step */ + timer_set_cc(2, 480); + + timer_assert_events(0, 0, 0, 0); + + timer_task(NRF51_TIMER_TASK_START); + clock_step(10000); + timer_assert_events(1, 0, 0, 0); + + /* Swept over on first overflow */ + timer_set_cc(3, 114); + + clock_step(10000); + timer_assert_events(1, 1, 0, 0); + + clock_step(10000); + timer_assert_events(1, 1, 1, 0); + + /* Wrap time until internal counter overflows */ + while (steps_to_overflow--) { + timer_assert_events(1, 1, 1, 0); + clock_step(10000); + } + + timer_assert_events(1, 1, 1, 1); + + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_0); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_1); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_2); + timer_clear_event(NRF51_TIMER_EVENT_COMPARE_3); + timer_assert_events(0, 0, 0, 0); + + timer_task(NRF51_TIMER_TASK_STOP); + + /* Test Proposal: Stop/Shutdown */ + /* Test Proposal: Shortcut Compare -> Clear */ + /* Test Proposal: Shortcut Compare -> Stop */ + /* Test Proposal: Counter Mode */ +} + int main(int argc, char **argv) { int ret; @@ -152,6 +246,7 @@ int main(int argc, char **argv) global_qtest =3D qtest_initf("-machine microbit"); =20 qtest_add_func("/microbit/nrf51/gpio", test_nrf51_gpio); + qtest_add_func("/microbit/nrf51/timer", test_nrf51_timer); =20 ret =3D g_test_run(); =20 --=20 2.19.2