GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2008 - 2009 Windriver, <www.windriver.com>
+ * Author: Tom Rix <Tom.Rix@windriver.com>
+ *
+ * (C) Copyright 2014 Linaro, Ltd.
+ * Rob Herring <robh@kernel.org>
+ */
+#include <common.h>
+#include <command.h>
+#include <console.h>
+#include <g_dnl.h>
+#include <fastboot.h>
+#include <net.h>
+#include <usb.h>
+#include <watchdog.h>
+
+static int do_fastboot_udp(int argc, char *const argv[],
+			   uintptr_t buf_addr, size_t buf_size)
+{
+#if CONFIG_IS_ENABLED(UDP_FUNCTION_FASTBOOT)
+	int err = net_loop(FASTBOOT);
+
+	if (err < 0) {
+		printf("fastboot udp error: %d\n", err);
+		return CMD_RET_FAILURE;
+	}
+
+	return CMD_RET_SUCCESS;
+#else
+	pr_err("Fastboot UDP not enabled\n");
+	return CMD_RET_FAILURE;
+#endif
+}
+
+static int do_fastboot_usb(int argc, char *const argv[],
+			   uintptr_t buf_addr, size_t buf_size)
+{
+#if CONFIG_IS_ENABLED(USB_FUNCTION_FASTBOOT)
+	int controller_index;
+	char *usb_controller;
+	char *endp;
+	int ret;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	usb_controller = argv[1];
+	controller_index = simple_strtoul(usb_controller, &endp, 0);
+	if (*endp != '\0') {
+		pr_err("Error: Wrong USB controller index format\n");
+		return CMD_RET_FAILURE;
+	}
+
+	ret = usb_gadget_initialize(controller_index);
+	if (ret) {
+		pr_err("USB init failed: %d\n", ret);
+		return CMD_RET_FAILURE;
+	}
+
+	g_dnl_clear_detach();
+	ret = g_dnl_register("usb_dnl_fastboot");
+	if (ret)
+		return ret;
+
+	if (!g_dnl_board_usb_cable_connected()) {
+		puts("\rUSB cable not detected.\n" \
+		     "Command exit.\n");
+		ret = CMD_RET_FAILURE;
+		goto exit;
+	}
+
+	while (1) {
+		if (g_dnl_detach())
+			break;
+		if (ctrlc())
+			break;
+		WATCHDOG_RESET();
+		usb_gadget_handle_interrupts(controller_index);
+	}
+
+	ret = CMD_RET_SUCCESS;
+
+exit:
+	g_dnl_unregister();
+	g_dnl_clear_detach();
+	usb_gadget_release(controller_index);
+
+	return ret;
+#else
+	pr_err("Fastboot USB not enabled\n");
+	return CMD_RET_FAILURE;
+#endif
+}
+
+static int do_fastboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	uintptr_t buf_addr = (uintptr_t)NULL;
+	size_t buf_size = 0;
+
+	if (argc < 2)
+		return CMD_RET_USAGE;
+
+	while (argc > 1 && **(argv + 1) == '-') {
+		char *arg = *++argv;
+
+		--argc;
+		while (*++arg) {
+			switch (*arg) {
+			case 'l':
+				if (--argc <= 0)
+					return CMD_RET_USAGE;
+				buf_addr = simple_strtoul(*++argv, NULL, 16);
+				goto NXTARG;
+
+			case 's':
+				if (--argc <= 0)
+					return CMD_RET_USAGE;
+				buf_size = simple_strtoul(*++argv, NULL, 16);
+				goto NXTARG;
+
+			default:
+				return CMD_RET_USAGE;
+			}
+		}
+NXTARG:
+		;
+	}
+
+	/* Handle case when USB controller param is just '-' */
+	if (argc == 1) {
+		pr_err("Error: Incorrect USB controller index\n");
+		return CMD_RET_USAGE;
+	}
+
+	fastboot_init((void *)buf_addr, buf_size);
+
+	if (!strcmp(argv[1], "udp"))
+		return do_fastboot_udp(argc, argv, buf_addr, buf_size);
+
+	if (!strcmp(argv[1], "usb")) {
+		argv++;
+		argc--;
+	}
+
+	return do_fastboot_usb(argc, argv, buf_addr, buf_size);
+}
+
+#ifdef CONFIG_SYS_LONGHELP
+static char fastboot_help_text[] =
+	"[-l addr] [-s size] usb <controller> | udp\n"
+	"\taddr - address of buffer used during data transfers ("
+	__stringify(CONFIG_FASTBOOT_BUF_ADDR) ")\n"
+	"\tsize - size of buffer used during data transfers ("
+	__stringify(CONFIG_FASTBOOT_BUF_SIZE) ")"
+	;
+#endif
+
+U_BOOT_CMD(
+	fastboot, CONFIG_SYS_MAXARGS, 1, do_fastboot,
+	"run as a fastboot usb or udp device", fastboot_help_text
+);