drivertest: add arm-m signal through isr case

testing/drivertest/CMakeLists.txt

@@ -357,10 +357,40 @@ if(CONFIG_TESTING_DRIVER_TEST)
       drivertest_touchpanel.c)
   endif()
 
-  if(CONFIG_ARCH_CHIP_MPS2_AN500 AND CONFIG_ARCH_IRQPRIO)
+  if(CONFIG_ARCH_CHIP_MPS2_AN500)
+    if(CONFIG_ARCH_IRQPRIO)
+      nuttx_add_application(
+        NAME
+        cmocka_driver_mps2
+        PRIORITY
+        ${CONFIG_TESTING_DRIVER_TEST_PRIORITY}
+        STACKSIZE
+        ${CONFIG_TESTING_DRIVER_TEST_STACKSIZE}
+        MODULE
+        ${CONFIG_TESTING_DRIVER_TEST}
+        DEPENDS
+        cmocka
+        SRCS
+        drivertest_mps2.c)
+
+      nuttx_add_application(
+        NAME
+        cmocka_driver_mps2_zerointerrupt
+        PRIORITY
+        ${CONFIG_TESTING_DRIVER_TEST_PRIORITY}
+        STACKSIZE
+        ${CONFIG_TESTING_DRIVER_TEST_STACKSIZE}
+        MODULE
+        ${CONFIG_TESTING_DRIVER_TEST}
+        DEPENDS
+        cmocka
+        SRCS
+        drivertest_mps2_zerointerrupt.c)
+    endif()
+
     nuttx_add_application(
       NAME
-      cmocka_driver_mps2
+      cmocka_driver_mps2_isr_signal
       PRIORITY
       ${CONFIG_TESTING_DRIVER_TEST_PRIORITY}
       STACKSIZE
@@ -370,7 +400,7 @@ if(CONFIG_TESTING_DRIVER_TEST)
       DEPENDS
       cmocka
       SRCS
-      drivertest_mps2.c)
+      drivertest_mps2_isr_signal.c)
   endif()
 
   if(CONFIG_PM)

testing/drivertest/Kconfig

@@ -4,7 +4,7 @@
 #
 
 config TESTING_DRIVER_TEST
-	tristate "vela cmocka driver test"
+	tristate "cmocka driver test"
 	default n
 	depends on TESTING_CMOCKA
 	---help---

testing/drivertest/Makefile

@@ -138,6 +138,8 @@ PROGNAME += cmocka_driver_mps2
 MAINSRC  += drivertest_mps2_zerointerrupt.c
 PROGNAME += cmocka_driver_mps2_zerointerrupt
 endif
+MAINSRC  += drivertest_mps2_isr_signal.c
+PROGNAME += cmocka_driver_mps2_isr_signal
 endif
 
 ifeq ($(CONFIG_PM),y)

testing/drivertest/drivertest_mps2_isr_signal.c

@@ -0,0 +1,219 @@
+/****************************************************************************
+ * apps/testing/drivertest/drivertest_mps2_isr_signal.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/nuttx.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <string.h>
+#include <cmocka.h>
+#include <signal.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/irq.h>
+#include <nuttx/semaphore.h>
+#include <nuttx/serial/uart_cmsdk.h>
+
+#include <pthread.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define CONFIG_TEST_ISR_SIGNAL_US    10000
+
+#define MPS2_ADDR2REG_PTR(base, off) (uint32_t*)((uint32_t*)(base) + (off))
+#define MPS2_IRQ_FROMBASE(base, off) ((base) + (off))
+
+/* https://developer.arm.com/documentation/101104/0200/programmers-model/
+ * base-element/cmsdk-timer
+ */
+
+#define MPS_TIMER_CTRL_OFFSET   0
+#define MPS_TIMER_VALUE_OFFSET  1
+#define MPS_TIMER_RELOAD_OFFSET 2
+#define MPS_TIMER_CLEAR_OFFSET  3
+
+#define MPS_TIMER_CTRL_ENABLE   (1<<0)
+#define MPS_TIMER_CTRL_IE       (1<<3)
+
+static_assert(NVIC_SYSH_PRIORITY_DEFAULT == 0x80, "prio");
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+typedef struct mps2_an500_timer_s
+{
+  volatile uint32_t *reload;
+  volatile uint32_t *ctrl;
+  volatile uint32_t *clear;
+  pid_t pid;
+  int irq;
+} mps2_an500_timer_t;
+
+/****************************************************************************
+ * Private Functions Prototypes
+ ****************************************************************************/
+
+static int timer_irq_handle(int irq, void *context, void *arg);
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static int last_sig = 0;
+
+static mps2_an500_timer_t timer[2];
+
+static const int armv7m_gpio_base = 16;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void mps_timer_init(void)
+{
+  static const uint32_t timerbase[] =
+    {
+      0x40000000, 0x40001000
+    };
+
+  static const int timerirq[] =
+    {
+      8, 9
+    };
+
+#ifdef CONFIG_ARCH_IRQPRIO
+  static const int timer_irq_prio[] =
+    {
+      0x80, 0xa0
+    };
+#endif
+
+  for (int i = 0; i < 2; i++)
+    {
+      mps2_an500_timer_t *t = &timer[i];
+
+      t->reload  = MPS2_ADDR2REG_PTR(timerbase[i], MPS_TIMER_RELOAD_OFFSET);
+      t->ctrl  = MPS2_ADDR2REG_PTR(timerbase[i], MPS_TIMER_CTRL_OFFSET);
+      t->clear = MPS2_ADDR2REG_PTR(timerbase[i], MPS_TIMER_CLEAR_OFFSET);
+      t->irq   = MPS2_IRQ_FROMBASE(armv7m_gpio_base, timerirq[i]);
+
+      irq_attach(t->irq, timer_irq_handle, t);
+      up_enable_irq(t->irq);
+
+#ifdef CONFIG_ARCH_IRQPRIO
+      up_prioritize_irq(t->irq, timer_irq_prio[i]);
+#endif
+    }
+}
+
+static int timer_irq_handle(int irq, void *context, void *arg)
+{
+  mps2_an500_timer_t *t = arg;
+  *t->clear = 1;
+  *t->ctrl = 0;
+
+  tgkill(t->pid, t->pid, SIGINT);
+  return 0;
+}
+
+static void timer_begin_test(mps2_an500_timer_t *t, uint32_t reload_us)
+{
+  uint32_t reload = reload_us * 25;
+  *t->reload = reload;
+
+  *t->ctrl = MPS_TIMER_CTRL_IE | MPS_TIMER_CTRL_ENABLE;
+}
+
+static void timer_end_test(mps2_an500_timer_t *t)
+{
+  *t->ctrl = 0;
+  *t->clear = 1;
+}
+
+static void test_sa_handler(int signo)
+{
+  last_sig = signo;
+}
+
+static void test_irq_signal(void **argv)
+{
+  mps2_an500_timer_t *t = &timer[1];
+  struct timespec ts;
+
+  signal(SIGINT, test_sa_handler);
+
+  clock_gettime(CLOCK_MONOTONIC, &ts);
+
+  t->pid = getpid();
+  timer_begin_test(t, CONFIG_TEST_ISR_SIGNAL_US);
+
+  /* Runing thread interrupt by exception_direct causing signal miss */
+
+  while (true)
+    {
+      struct timespec now;
+      up_udelay(1000);
+      clock_gettime(CLOCK_MONOTONIC, &now);
+      if (now.tv_sec - ts.tv_sec > 1 || last_sig != 0)
+        {
+          break;
+        }
+    }
+
+  assert_int_equal(last_sig, SIGINT);
+}
+
+static int setup(void **argv)
+{
+  mps_timer_init();
+  return 0;
+}
+
+static int teardown(void **argv)
+{
+  timer_end_test(&timer[0]);
+  timer_end_test(&timer[1]);
+  return 0;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int main(int argc, char *argv[])
+{
+  const struct CMUnitTest tests[] = {
+    cmocka_unit_test_prestate_setup_teardown(
+        test_irq_signal, setup, teardown, NULL),
+  };
+
+  return cmocka_run_group_tests(tests, NULL, NULL);
+}