1 files changed, 104 insertions, 0 deletions
diff --git a/commands/mipi_dbi.c b/commands/mipi_dbi.c
new file mode 100644
index 0000000000..b9b665b721
--- /dev/null
+++ b/commands/mipi_dbi.c
@@ -0,0 +1,104 @@
+// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-FileCopyrightText: © 2022 Ahmad Fatoum
+
+#include <common.h>
+#include <command.h>
+#include <getopt.h>
+#include <video/mipi_dbi.h>
+#include <video/mipi_display.h>
+
+static int mipi_dbi_command_show(struct mipi_dbi *dbi, int cmd)
+{
+	u8 val[4];
+	int ret;
+	size_t len;
+
+	if (!mipi_dbi_command_is_read(dbi, cmd))
+		return -EACCES;
+
+	len = mipi_dbi_command_read_len(cmd);
+
+	printf("%02x: ", cmd);
+	ret = mipi_dbi_command_buf(dbi, cmd, val, len);
+	if (ret) {
+		printf("XX\n");
+		return ret;
+	}
+	printf("%*phN\n", (int)len, val);
+
+	return 0;
+}
+
+static int do_mipi_dbi(int argc, char *argv[])
+{
+	struct mipi_dbi *dbi;
+	int opt, ret, i;
+	bool write = false;
+	u8 cmd, val[4];
+
+	dbi = list_first_entry_or_null(&mipi_dbi_list, struct mipi_dbi, list);
+
+	while ((opt = getopt(argc, argv, "wld:")) > 0) {
+		struct mipi_dbi *tmp;
+
+		switch (opt) {
+		case 'w':
+			write = true;
+			break;
+		case 'l':
+			list_for_each_entry(tmp, &mipi_dbi_list, list)
+				printf("%s\n", mipi_dbi_name(tmp));
+			return 0;
+		case 'd':
+			dbi = NULL;
+			list_for_each_entry(tmp, &mipi_dbi_list, list) {
+				if (!strcmp(optarg, mipi_dbi_name(tmp))) {
+					dbi = tmp;
+					break;
+				}
+			}
+			break;
+		default:
+			return COMMAND_ERROR_USAGE;
+		}
+	}
+
+	if (!dbi)
+		return -ENODEV;
+
+	if (optind == argc) {
+		for (cmd = 0; cmd < 255; cmd++)
+			mipi_dbi_command_show(dbi, cmd);
+		return 0;
+	}
+
+	ret = kstrtou8(argv[optind++], 16, &cmd);
+	if (ret < 0)
+		return ret;
+
+	if (optind == argc && !write)
+		return mipi_dbi_command_show(dbi, cmd);
+
+	for (i = optind; i < argc; i++) {
+		ret = kstrtou8(argv[optind + i], 16, &val[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	return mipi_dbi_command_buf(dbi, cmd, val, argc - optind);
+}
+
+BAREBOX_CMD_HELP_START(mipi_dbi)
+BAREBOX_CMD_HELP_TEXT("Options:")
+BAREBOX_CMD_HELP_OPT ("-l\t",  "list all MIPI DBI devices")
+BAREBOX_CMD_HELP_OPT ("-d DEVICE",  "select specific device (default is first registered)")
+BAREBOX_CMD_HELP_OPT ("-w",  "issue write command")
+BAREBOX_CMD_HELP_END
+
+BAREBOX_CMD_START(mipi_dbi)
+	.cmd		= do_mipi_dbi,
+	BAREBOX_CMD_DESC("write/read from MIPI DBI SPI device")
+	BAREBOX_CMD_OPTS("[-wld] [REG] [DATA...]")
+	BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
+	BAREBOX_CMD_HELP(cmd_mipi_dbi_help)
+BAREBOX_CMD_END