19 uint8_t fcb_get_align(const struct fcb *fcbp)  in fcb_get_align()  argument
23 	if (fcbp->fap == NULL) {  in fcb_get_align()
27 	align = flash_area_align(fcbp->fap);  in fcb_get_align()
32 int fcb_flash_read(const struct fcb *fcbp, const struct flash_sector *sector, off_t off,  in fcb_flash_read()  argument
41 	if (fcbp->fap == NULL) {  in fcb_flash_read()
45 	rc = flash_area_read(fcbp->fap, sector->fs_off + off, dst, len);  in fcb_flash_read()
54 int fcb_flash_write(const struct fcb *fcbp, const struct flash_sector *sector, off_t off,  in fcb_flash_write()  argument
63 	if (fcbp->fap == NULL) {  in fcb_flash_write()
67 	rc = flash_area_write(fcbp->fap, sector->fs_off + off, src, len);  in fcb_flash_write()
76 int fcb_erase_sector(const struct fcb *fcbp, const struct flash_sector *sector)  in fcb_erase_sector()  argument
80 	if (fcbp->fap == NULL) {  in fcb_erase_sector()
84 	rc = flash_area_flatten(fcbp->fap, sector->fs_off, sector->fs_size);  in fcb_erase_sector()
92 int fcb_init(int f_area_id, struct fcb *fcbp)  in fcb_init()  argument
103 	if (!fcbp->f_sectors || fcbp->f_sector_cnt - fcbp->f_scratch_cnt < 1) {  in fcb_init()
107 	rc = flash_area_open(f_area_id, &fcbp->fap);  in fcb_init()
112 	fparam = flash_get_parameters(fcbp->fap->fa_dev);  in fcb_init()
113 	fcbp->f_erase_value = fparam->erase_value;  in fcb_init()
115 	align = fcb_get_align(fcbp);  in fcb_init()
121 	for (i = 0; i < fcbp->f_sector_cnt; i++) {  in fcb_init()
122 		sector = &fcbp->f_sectors[i];  in fcb_init()
123 		rc = fcb_sector_hdr_read(fcbp, sector, &fda);  in fcb_init()
147 		oldest_sector = newest_sector = &fcbp->f_sectors[0];  in fcb_init()
148 		rc = fcb_sector_hdr_init(fcbp, oldest_sector, 0);  in fcb_init()
154 	fcbp->f_align = align;  in fcb_init()
155 	fcbp->f_oldest = oldest_sector;  in fcb_init()
156 	fcbp->f_active.fe_sector = newest_sector;  in fcb_init()
157 	fcbp->f_active.fe_elem_off = fcb_len_in_flash(fcbp, sizeof(struct fcb_disk_area));  in fcb_init()
158 	fcbp->f_active_id = newest;  in fcb_init()
161 		rc = fcb_getnext_in_sector(fcbp, &fcbp->f_active);  in fcb_init()
170 	k_mutex_init(&fcbp->f_mtx);  in fcb_init()
174 int fcb_free_sector_cnt(struct fcb *fcbp)  in fcb_free_sector_cnt()  argument
179 	fa = fcbp->f_active.fe_sector;  in fcb_free_sector_cnt()
180 	for (i = 0; i < fcbp->f_sector_cnt; i++) {  in fcb_free_sector_cnt()
181 		fa = fcb_getnext_sector(fcbp, fa);  in fcb_free_sector_cnt()
182 		if (fa == fcbp->f_oldest) {  in fcb_free_sector_cnt()
189 int fcb_is_empty(struct fcb *fcbp)  in fcb_is_empty()  argument
191 	return (fcbp->f_active.fe_sector == fcbp->f_oldest &&  in fcb_is_empty()
192 		fcbp->f_active.fe_elem_off == fcb_len_in_flash(fcbp, sizeof(struct fcb_disk_area)));  in fcb_is_empty()
216 int fcb_put_len(const struct fcb *fcbp, uint8_t *buf, uint16_t len)  in fcb_put_len()  argument
219 		buf[0] = len ^ ~fcbp->f_erase_value;  in fcb_put_len()
222 		buf[0] = (len | 0x80) ^ ~fcbp->f_erase_value;  in fcb_put_len()
223 		buf[1] = (len >> 7) ^ ~fcbp->f_erase_value;  in fcb_put_len()
230 int fcb_get_len(const struct fcb *fcbp, uint8_t *buf, uint16_t *len)  in fcb_get_len()  argument
236 	buf0_xor = buf[0] ^ ~fcbp->f_erase_value;  in fcb_get_len()
238 		if ((buf[0] == fcbp->f_erase_value) && (buf[1] == fcbp->f_erase_value)) {  in fcb_get_len()
242 		buf1_xor = buf[1] ^ ~fcbp->f_erase_value;  in fcb_get_len()
255 int fcb_sector_hdr_init(struct fcb *fcbp, struct flash_sector *sector, uint16_t id)  in fcb_sector_hdr_init()  argument
260 	fda.fd_magic = fcb_flash_magic(fcbp);  in fcb_sector_hdr_init()
261 	fda.fd_ver = fcbp->f_version;  in fcb_sector_hdr_init()
262 	fda._pad = fcbp->f_erase_value;  in fcb_sector_hdr_init()
265 	rc = fcb_flash_write(fcbp, sector, 0, &fda, sizeof(fda));  in fcb_sector_hdr_init()
278 int fcb_sector_hdr_read(struct fcb *fcbp, struct flash_sector *sector, struct fcb_disk_area *fdap)  in fcb_sector_hdr_read()  argument
286 	rc = fcb_flash_read(fcbp, sector, 0, fdap, sizeof(*fdap));  in fcb_sector_hdr_read()
290 	if (fdap->fd_magic == MK32(fcbp->f_erase_value)) {  in fcb_sector_hdr_read()
293 	if (fdap->fd_magic != fcb_flash_magic(fcbp)) {  in fcb_sector_hdr_read()
306 int fcb_offset_last_n(struct fcb *fcbp, uint8_t entries, struct fcb_entry *last_n_entry)  in fcb_offset_last_n()  argument
319 	while (!fcb_getnext(fcbp, &loc)) {  in fcb_offset_last_n()
326 			rc = fcb_getnext(fcbp, last_n_entry);  in fcb_offset_last_n()
346 int fcb_clear(struct fcb *fcbp)  in fcb_clear()  argument
351 	while (!fcb_is_empty(fcbp)) {  in fcb_clear()
352 		rc = fcb_rotate(fcbp);  in fcb_clear()