src/debug/cli/enet.c

/*
 * Command for controlling Ethernet interface.
 *
 * Copyright 2015 Chromium OS Authors
 */

#include "common.h"

#include "drivers/bus/usb/usb.h"
#include "drivers/net/net.h"
#include "netboot/netboot.h"

/* Wait for the device to show up for no longer than 5 seconds. */
#define DEV_TIMEOUT_US 5000000

static NetDevice *get_net_device(void)
{
	NetDevice *ndev = net_get_device();
	int ready = 0;

	if (ndev)
		ndev->ready(ndev, &ready);

	if (!ready) {
		net_wait_for_link();
		ndev = net_get_device();
	}

	return ndev;
}

static int do_enet(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	NetDevice *ndev;
	int ready;

	if (argc < 2)
		return CMD_RET_USAGE;

	ndev = get_net_device();
	if (!ndev)
		return CMD_RET_FAILURE;

	if (!strcmp(argv[1], "send")) {
		unsigned long addr;
		int length;

		if (argc != 4)
			return CMD_RET_USAGE;

		if (!ready)
			return CMD_RET_FAILURE;

		/* We might want to chek these for sanity. */
		addr = strtoul(argv[2], 0, 16);
		length = strtoul(argv[1], 0, 0);

		ndev->send(ndev, (void *) addr, length);
		return CMD_RET_SUCCESS;
	}

	if (!strcmp(argv[1], "dhcp")) {
		uip_ipaddr_t my_ip, next_ip, server_ip;
		const char *dhcp_bootfile;

		if (!try_dhcp(&my_ip, &next_ip, &server_ip, &dhcp_bootfile))
			return CMD_RET_SUCCESS;

	}
	return CMD_RET_FAILURE;
}

U_BOOT_CMD(
	enet,	5,	1,
	"ethernet interface utilities",
	"dhcp          - try obtainitg IP address over DHCP\n"
	"enet send addr len - send a frame from memory,\n"
	"                     'len' bytes starting at address 'addr'\n"
);