Пример #1
0
static void
dev_nvram_exit(void)
{
	int order = 0;
	struct page *page, *end;

	if (nvram_class) {
		class_device_destroy(nvram_class, MKDEV(nvram_major, 0));
		class_destroy(nvram_class);
	}

	if (nvram_major >= 0)
		unregister_chrdev(nvram_major, "nvram");

	if (nvram_mtd)
		put_mtd_device(nvram_mtd);

	while ((PAGE_SIZE << order) < nvram_space)
		order++;
	end = virt_to_page(nvram_buf + (PAGE_SIZE << order) - 1);
	for (page = virt_to_page(nvram_buf); page <= end; page++)
		ClearPageReserved(page);

	_nvram_exit();
}
Пример #2
0
static void
dev_nvram_exit(void)
{
	int order = 0;
	struct page *page, *end;

	if (nvram_class) {
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 36)
		class_device_destroy(nvram_class, MKDEV(nvram_major, 0));
#else /* 2.6.36 and up */
		device_destroy(nvram_class, MKDEV(nvram_major, 0));
#endif
		class_destroy(nvram_class);
	}

	if (nvram_major >= 0)
		unregister_chrdev(nvram_major, "nvram");

	if (nvram_mtd)
		put_mtd_device(nvram_mtd);

	while ((PAGE_SIZE << order) < MAX_NVRAM_SPACE)
		order++;
	end = virt_to_page(nvram_buf + (PAGE_SIZE << order) - 1);
	for (page = virt_to_page(nvram_buf); page <= end; page++)
		ClearPageReserved(page);

	_nvram_exit();
}
Пример #3
0
void
BCMINITFN(nvram_exit)(void *si)
{
	si_t *sih;

	sih = (si_t *)si;

	_nvram_exit();
}
Пример #4
0
void
nvram_exit(void *sih)
{
    if (nvram_header == NULL) {
        return;
    }
    
    _nvram_exit();
}
Пример #5
0
int
BCMATTACHFN(nvram_init)(void *si)
{
	bool isemb;
	int ret;
	si_t *sih;
	static int nvram_status = -1;

#ifdef __ECOS
	if (!kernel_initial)
		return 0;
#endif

	/* Check for previous 'restore defaults' condition */
	if (nvram_status == 1)
		return 1;

	/* Check whether nvram already initilized */
	if (nvram_status == 0 && !nvram_do_reset)
		return 0;

	sih = (si_t *)si;

	/* Restore defaults from embedded NVRAM if button held down */
	if (nvram_do_reset) {
		/* Initialize with embedded NVRAM */
		nvram_header = find_nvram(TRUE, &isemb);
		ret = _nvram_init(si);
		if (ret == 0) {
			nvram_status = 1;
			return 1;
		}
		nvram_status = -1;
		_nvram_exit();
	}

	/* Find NVRAM */
	nvram_header = find_nvram(FALSE, &isemb);
	ret = _nvram_init(si);
	if (ret == 0) {
		/* Restore defaults if embedded NVRAM used */
		if (nvram_header && isemb) {
			ret = 1;
		}
	}
	nvram_status = ret;
	return ret;
}
Пример #6
0
static void
dev_nvram_exit(void)
{
	int order = 0;
	struct page *page, *end;

	if (nvram_handle)
		devfs_unregister(nvram_handle);

	if (nvram_major >= 0)
		devfs_unregister_chrdev(nvram_major, "nvram");

	if (nvram_mtd)
		put_mtd_device(nvram_mtd);

	while ((PAGE_SIZE << order) < NVRAM_SPACE)
		order++;
	end = virt_to_page(nvram_buf + (PAGE_SIZE << order) - 1);
	for (page = virt_to_page(nvram_buf); page <= end; page++)
		mem_map_unreserve(page);

	_nvram_exit();
}
Пример #7
0
void
nvram_exit(void)
{
	_nvram_exit();
}
Пример #8
0
int
nvram_init(void *sbh)
{
#ifdef ASUS
#else
	ulong offsets[] = {
		FLASH_BASE + 4 MB - NVRAM_SPACE,
		FLASH_BASE + 3 MB - NVRAM_SPACE,
		FLASH_BASE + 2 MB - NVRAM_SPACE,
		FLASH_BASE + 1 MB - NVRAM_SPACE,
		FLASH_BASE + 4 KB,
		FLASH_BASE + 1 KB,
#ifdef _CFE_
		(ulong) embedded_nvram,
#endif
	};
	int i, ret;

#ifdef vxworks
	/* Initialize private semaphore */
	if ((nvram_lock = semBCreate(SEM_Q_FIFO, SEM_FULL)) == NULL) {
		printf("nvram_init: semBCreate failed\n");
		return ERROR;
	}
#endif

	if (sbh) {
		for (i = 4; i < ARRAYSIZE(offsets); i++) {
			nvram_header = (struct nvram_header *) offsets[i];
			if (nvram_header->magic == NVRAM_MAGIC)
				break;
			nvram_header = NULL;
		}
		/* Temporarily initialize with embedded NVRAM */
		ret = _nvram_init();
		if (ret == 0) {
			/* Restore defaults if button held down */
			if (nvram_reset(sbh))
				return 1;
			_nvram_exit();
		}
	}

	/* Find NVRAM */
	for (i = 0; i < ARRAYSIZE(offsets); i++) {
		nvram_header = (struct nvram_header *) offsets[i];
		if (nvram_header->magic == NVRAM_MAGIC)
			break;
		nvram_header = NULL;
	}

	ret = _nvram_init();
	if (ret == 0) {
		/* Restore defaults if embedded NVRAM used */
		if (nvram_header && i >= 4)
			ret = 1;
	}

	return ret;
#endif
}