tests/dali_host: add initial lowlevel test for DALI host mode

tests/driver_dali_host/Makefile

@@ -0,0 +1,17 @@
+include ../Makefile.tests_common
+
+QUIET ?= 1
+# DEVELHELP enabled by default for all tests, set 0 to disable
+DEVELHELP ?= 1
+
+# Shell modules
+USEMODULE += app_metadata
+USEMODULE += shell
+USEMODULE += shell_commands
+USEMODULE += ps
+USEMODULE += dali_host
+USEMODULE += dali
+USEMODULE += ztimer
+USEMODULE += ztimer_msec
+
+include $(RIOTBASE)/Makefile.include

tests/driver_dali_host/main.c

@@ -0,0 +1,199 @@
+/*
+ * Copyright (C) 2021 Mesotic SAS
+ *
+ * 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 DALI device drivers
+ *
+ * @author      Dylan Laduranty <dylan.laduranty@mesotic.com>
+ * @}
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "board.h"
+#include "shell_commands.h"
+#include "shell.h"
+#include "dali.h"
+#include "dali_params.h"
+
+#define ENABLE_DEBUG 0
+#include "debug.h"
+
+#ifndef SHELL_BUFSIZE
+#define SHELL_BUFSIZE       (128U)
+#endif
+
+#define CONVERT_ERROR   (-32768)
+#define DALI_CMD    0x90
+
+static dali_host_t dev;
+
+static inline int _get_num(const char *str)
+{
+    errno = 0;
+    char *temp;
+    long val = strtol(str, &temp, 0);
+
+    if (temp == str || *temp != '\0' ||
+        ((val == LONG_MIN || val == LONG_MAX) && errno == ERANGE)) {
+        val = CONVERT_ERROR;
+    }
+    return (int)val;
+}
+
+static int cmd_send(int argc, char **argv)
+{
+    uint8_t addr, cmd;
+    if (argc < 3) {
+        puts("send: missing argument");
+        return -1;
+    }
+    addr = _get_num(argv[1]);
+    cmd = _get_num(argv[2]);
+
+    printf("sending cmd:0x%x to 0x%x\n", cmd, addr);
+    dali_host_xfer(&dev, addr, cmd, NULL);
+
+    return 0;
+}
+
+static int cmd_conf(int argc, char **argv)
+{
+    uint8_t addr, cmd;
+    if (argc < 3) {
+        puts("send: missing argument");
+        return -1;
+    }
+    addr = _get_num(argv[1]);
+    cmd = _get_num(argv[2]);
+
+    printf("sending cmd:0x%x to 0x%x\n", cmd, addr);
+    dali_host_xfer(&dev, addr, cmd, NULL);
+    ztimer_sleep(ZTIMER_MSEC, 30);
+    dali_host_xfer(&dev, addr, cmd, NULL);
+
+    return 0;
+}
+
+static int cmd_send_bcast(int argc, char **argv)
+{
+    uint8_t cmd;
+    if (argc < 2) {
+        puts("sendall: missing argument");
+        return -1;
+    }
+    cmd = _get_num(argv[1]);
+    for (unsigned i=0; i<64; i++) {
+        printf("sending cmd:0x%x to 0x%x\n", cmd, i);
+        dali_host_xfer(&dev, (i << 1) | 1, cmd, NULL);
+        ztimer_sleep(ZTIMER_MSEC, 25);
+    }
+    return 0;
+}
+
+static int cmd_xfer(int argc, char **argv)
+{
+    uint8_t addr, cmd;
+    uint8_t data;
+    int ret;
+    if (argc < 3) {
+        puts("xfer: missing argument");
+        return -1;
+    }
+    addr = _get_num(argv[1]);
+    cmd = _get_num(argv[2]);
+
+    printf("sending cmd:0x%x to 0x%x\n", cmd, addr);
+    ret = dali_host_xfer(&dev, addr, cmd, &data);
+    if (ret != 0) {
+        printf("error on reception:%d\n", ret);
+        return -1;
+    }
+
+    printf("device answered: 0x%x\n", data);
+
+    return 0;
+}
+
+static int cmd_detect(int argc, char **argv)
+{
+    uint8_t data;
+    (void)data;
+    (void)argc;
+    (void)argv;
+    puts("Scanning for DALI devices...");
+
+    puts(
+        "addr not ack'ed = \"-\", addr ack'ed = \"X\",  error = \"E\"\n"
+        "     0 1 2 3 4 5 6 7 8 9 a b c d e f"
+    );
+
+    for (char i = 0; i < 4; i++) {
+        char row[] = { '0', 'x', '0' + i, '0', '\0' };
+        fputs(row, stdout);
+        uint8_t addr = i;
+        addr <<= 4;
+        for (unsigned j = 0; j < 16; j++) {
+            char str[] = { ' ', '-', '\0' };
+            uint8_t data;
+            int ret;
+            ret = dali_host_xfer(&dev, (addr << 1) | 1, DALI_CMD, &data);
+
+            switch (ret) {
+                case 0:
+                    /* success: Device did respond */
+                    str[1] = 'X';
+                    break;
+                case -ENXIO:
+                    /* No ACK --> no device */
+                    break;
+                default:
+                    /* Some unexpected error */
+                    str[1] = 'E';
+                    break;
+            }
+
+            fputs(str, stdout);
+            addr++;
+        }
+        puts("");
+    }
+
+    return 0;
+}
+
+static const shell_command_t shell_commands[] = {
+    { "send", "send a command to a device", cmd_send },
+    { "conf", "send a configuration command (twice a command"\
+      "under 100 ms)  to a device", cmd_conf },
+    { "send_bcast", "send a command to 64 devices", cmd_send_bcast},
+    { "xfer", "send a command and wait for response", cmd_xfer },
+    { "detect", "query available devices on the bus", cmd_detect},
+    { NULL, NULL, NULL }
+};
+
+int main(void)
+{
+    puts("\nDALI host driver test application");
+
+    memset(&dev, 0, sizeof(dali_host_t));
+    dali_host_init(&dev, &dali_config[0]);
+
+    /* run the shell */
+    char line_buf[SHELL_BUFSIZE];
+    shell_run(shell_commands, line_buf, SHELL_BUFSIZE);
+    return 0;
+}