setup.c

Intel PXA270的bootloader程序,在linux环境下运行的.

#include <stdio.h>
#include <string.h>
#include <command.h>
#include <network.h>
#include <board.h>
#include <setup.h>


#define assert(fmt, args...)	//printf(fmt, ##args)

#define STATUS_ID			0x5166a1c0

extern unsigned long loader_size;
extern unsigned long setup_size;
# define setup_storeat		((void *)((ulong)setup & 0x000FFFFF))

static struct setup_t __bsetup _setup = {
	.sid        = 0x58fd5dfd,
	.size       = (uint32)&loader_size,
	.myipaddr   = 0x0100a8c0,
	.destipaddr = 0x3200a8c0,
	.myhaddr    = {0x00,0x05,0xb4,0x6d,0x15,0xfd},
	.autoboot   = AUTOBOOT,
	.kernelname     = KERNEL,
	.fsname   = FILESYSTEM,
	.delay     = DELAYTIME,
};
struct setup_t *setup = &_setup;


static bool do_config(int argc, char **argv);
static void config_usage(void);
static void view_setup(void);
extern void init_map(void);

struct command_t cmd_config = {
	.name  = "set",
	.run   = do_config,
	.usage = config_usage
};

bool config_init(void){
	init_map();
	return true;
}

static void config_usage(void){
	usage_format("set", "");
	usage_format("set name value", "");
	return;
}

static bool do_config(int argc, char **argv){
	if (argc == 1){
		view_setup();
		return true;
	} else if (argc == 3){
		if (!strcmp(argv[1], "myipaddr")){
			setup->myipaddr = inet_addr(argv[2]);
		} else if (!strcmp(argv[1], "destipaddr")){
			setup->destipaddr = inet_addr(argv[2]);
		} else if (!strcmp(argv[1], "myhaddr")){
			void *mac = mac_aton(argv[2]);
			if (!mac) goto invalid;
			memcpy(setup->myhaddr, mac, 6);
			net_set_haddr(setup->myhaddr);
		} else if (!strcmp(argv[1], "autoboot")){
			strcpy(setup->autoboot, argv[2]);
		} else if (!strcmp(argv[1], "kernelname")){
			strcpy(setup->kernelname, argv[2]);
		} else if (!strcmp(argv[1], "fsname")){
			strcpy(setup->fsname, argv[2]);
		} else if (!strcmp(argv[1], "delay")){
			setup->delay = delay_aton(argv[2]);
		} else goto invalid;
	} else goto invalid;
	save_setup();
	return true;
invalid :
	config_usage();
	return false;
}

static void view_setup(void){
	printf(" %-10s : %s\n", "myipaddr", inet_ntoa(setup->myipaddr));
	printf(" %-10s : %s\n", "destipaddr", inet_ntoa(setup->destipaddr));
	printf(" %-10s : %s\n", "myhaddr", mac_ntoa(setup->myhaddr));
	printf(" %-10s : %s\n", "autoboot", setup->autoboot);
	printf(" %-10s : %s\n", "kernelname", setup->kernelname);
	printf(" %-10s : %s\n", "fsname", setup->fsname);
	printf(" %-10s : %d\n", "delay", setup->delay);
	return;
}

extern int flash_write(void *dest, const void *src, uint cnt);

extern void save_setup(void){
	struct setup_t *s;

	s = setup_storeat;
	if (s->sid == setup->sid){
		flash_write(s, setup, (int)&setup_size);
	} else {
		assert(" failed : invalid setup id. reboot and try again.\n");
		return;
	}
	return;
}