33 int init_flash_dev(struct mbox_context *context)  in init_flash_dev()  argument
53 	context->fds[MTD_FD].fd = fd;  in init_flash_dev()
56 	if (ioctl(fd, MEMGETINFO, &context->mtd_info) == -1) {  in init_flash_dev()
63 	if (context->flash_size == 0) {  in init_flash_dev()
84 				context->mtd_info.size);  in init_flash_dev()
85 		context->flash_size = context->mtd_info.size;  in init_flash_dev()
89 	context->erase_size_shift = log_2(context->mtd_info.erasesize);  in init_flash_dev()
90 	context->flash_bmap = calloc(context->flash_size >>  in init_flash_dev()
91 				     context->erase_size_shift,  in init_flash_dev()
92 				     sizeof(*context->flash_bmap));  in init_flash_dev()
93 	MSG_DBG("Flash erase size: 0x%.8x\n", context->mtd_info.erasesize);  in init_flash_dev()
100 void free_flash_dev(struct mbox_context *context)  in free_flash_dev()  argument
102 	free(context->flash_bmap);  in free_flash_dev()
103 	close(context->fds[MTD_FD].fd);  in free_flash_dev()
115 static inline bool flash_is_erased(struct mbox_context *context,  in flash_is_erased()  argument
118 	return context->flash_bmap[offset >> context->erase_size_shift]  in flash_is_erased()
134 int set_flash_bytemap(struct mbox_context *context, uint32_t offset,  in set_flash_bytemap()  argument
137 	if ((offset + count) > context->flash_size) {  in set_flash_bytemap()
143 	memset(context->flash_bmap + (offset >> context->erase_size_shift),  in set_flash_bytemap()
145 	       align_up(count, 1 << context->erase_size_shift) >>  in set_flash_bytemap()
146 	       context->erase_size_shift);  in set_flash_bytemap()
159 int erase_flash(struct mbox_context *context, uint32_t offset, uint32_t count)  in erase_flash()  argument
161 	const uint32_t erase_size = 1 << context->erase_size_shift;  in erase_flash()
175 		if (!flash_is_erased(context, offset)) { /* Need to erase */  in erase_flash()
184 			rc = ioctl(context->fds[MTD_FD].fd, MEMERASE,  in erase_flash()
192 			set_flash_bytemap(context, erase_info.start,  in erase_flash()
205 		rc = ioctl(context->fds[MTD_FD].fd, MEMERASE, &erase_info);  in erase_flash()
212 		set_flash_bytemap(context, erase_info.start, erase_info.length,  in erase_flash()
231 int64_t copy_flash(struct mbox_context *context, uint32_t offset, void *mem,  in copy_flash()  argument
239 	if (lseek(context->fds[MTD_FD].fd, offset, SEEK_SET) != offset) {  in copy_flash()
246 		size_read = read(context->fds[MTD_FD].fd, mem,  in copy_flash()
270 int write_flash(struct mbox_context *context, uint32_t offset, void *buf,  in write_flash()  argument
278 	if (lseek(context->fds[MTD_FD].fd, offset, SEEK_SET) != offset) {  in write_flash()
285 		rc = write(context->fds[MTD_FD].fd, buf + buf_offset, count);  in write_flash()
292 		set_flash_bytemap(context, offset + buf_offset, rc,  in write_flash()