tests: add cc2420 driver test

tests/driver_cc2420/Makefile

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+INCLUDES += -I$(APPDIR)
+BOARD ?= z1
+
+include ../Makefile.tests_common
+
+USEMODULE += test_utils_netdev_ieee802154_minimal
+
+# select the driver to test
+USEMODULE += cc2420
+
+CFLAGS += -DEVENT_THREAD_STACKSIZE_DEFAULT=1024
+
+include $(RIOTBASE)/Makefile.include

tests/driver_cc2420/Makefile.ci

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+BOARD_INSUFFICIENT_MEMORY := \
+    arduino-duemilanove \
+    arduino-leonardo \
+    arduino-nano \
+    arduino-uno \
+    atmega328p-xplained-mini \
+    atmega328p \
+    nucleo-l011k4 \
+    samd10-xmini \
+    stm32f030f4-demo \
+    #

tests/driver_cc2420/README.md

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+# About
+This is a manual test application for the CC2420 radio driver.
+
+For running this test, you need to connect/configure the following pins of your
+radio device:
+- SPI MISO
+- SPI MOSI
+- SPI CLK
+- CS (chip select)
+- FIFO
+- FIFOP
+- CCA
+- SFD
+- VREFEN
+- RESET
+
+# Usage
+For testing the radio driver you can use the ifconfig and txtsnd shell commands
+that are included in this application.

tests/driver_cc2420/init_dev.h

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+/*
+ * Copyright (C) 2022 HAW Hamburg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief   Device-specific test header file CC2420 IEEE 802.15.4 device driver
+ *
+ * @author  Leandro Lanzieri <leandro.lanzieri@haw-hamburg.de>
+ */
+#ifndef INIT_DEV_H
+#define INIT_DEV_H
+
+#include "cc2420_params.h"
+#include "kernel_defines.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define CC2420_NUM                      ARRAY_SIZE(cc2420_params)
+#define NETDEV_IEEE802154_MINIMAL_NUMOF CC2420_NUM
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* INIT_DEV_H */
+/** @} */

tests/driver_cc2420/main.c

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+/*
+ * Copyright (C) 2022 HAW Hamburg
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     tests
+ * @{
+ *
+ * @file
+ * @brief       Test application for CC2420 IEEE 802.15.4 device driver
+ *
+ * @author      Leandro Lanzieri <leandro.lanzieri@haw-hamburg.de>
+ *
+ * @}
+ */
+
+#include <stdio.h>
+
+#include "cc2420.h"
+#include "init_dev.h"
+#include "shell.h"
+#include "test_utils/netdev_ieee802154_minimal.h"
+
+static cc2420_t cc2420[CC2420_NUM];
+
+int netdev_ieee802154_minimal_init_devs(netdev_event_cb_t cb) {
+    puts("Initializing CC2420 devices");
+
+    for (unsigned i = 0; i < CC2420_NUM; i++) {
+        printf("%d out of %d\n", i + 1, CC2420_NUM);
+        netdev_t *netdev = &cc2420[i].netdev.netdev;
+
+        /* setup the specific driver */
+        cc2420_setup(&cc2420[i], &cc2420_params[i], i);
+
+        /* set the application-provided callback */
+        netdev->event_callback = cb;
+
+        /* initialize the device driver */
+        int res = netdev->driver->init(netdev);
+        if (res) {
+            return res;
+        }
+    }
+    return 0;
+}
+
+int main(void)
+{
+    puts("Test application for CC2420 IEEE 802.15.4 device driver");
+
+    int res = netdev_ieee802154_minimal_init();
+    if (res) {
+        puts("Error initializing devices");
+        return 1;
+    }
+
+    /* start the shell */
+    puts("Initialization successful - starting the shell now");
+
+    char line_buf[SHELL_DEFAULT_BUFSIZE];
+    shell_run(NULL, line_buf, SHELL_DEFAULT_BUFSIZE);
+
+    return 0;
+}