99 static int flash_sam0_valid_range(off_t offset, size_t len)  in flash_sam0_valid_range()  argument
101 	if (offset < 0) {  in flash_sam0_valid_range()
102 		LOG_WRN("0x%lx: before start of flash", (long)offset);  in flash_sam0_valid_range()
105 	if ((offset + len) > CONFIG_FLASH_SIZE * 1024) {  in flash_sam0_valid_range()
106 		LOG_WRN("0x%lx: ends past the end of flash", (long)offset);  in flash_sam0_valid_range()
124 static int flash_sam0_check_status(off_t offset)  in flash_sam0_check_status()  argument
141 		LOG_ERR("programming error at 0x%lx", (long)offset);  in flash_sam0_check_status()
144 		LOG_ERR("lock error at 0x%lx", (long)offset);  in flash_sam0_check_status()
147 		LOG_ERR("NVM error at 0x%lx", (long)offset);  in flash_sam0_check_status()
161 static int flash_sam0_write_page(const struct device *dev, off_t offset,  in flash_sam0_write_page()  argument
166 	uint32_t *dst = FLASH_MEM(offset);  in flash_sam0_write_page()
187 	err = flash_sam0_check_status(offset);  in flash_sam0_write_page()
192 	if (memcmp(data, FLASH_MEM(offset), len) != 0) {  in flash_sam0_write_page()
193 		LOG_ERR("verify error at offset 0x%lx", (long)offset);  in flash_sam0_write_page()
200 static int flash_sam0_erase_row(const struct device *dev, off_t offset)  in flash_sam0_erase_row()  argument
202 	*FLASH_MEM(offset) = 0U;  in flash_sam0_erase_row()
208 	return flash_sam0_check_status(offset);  in flash_sam0_erase_row()
236 static int flash_sam0_write(const struct device *dev, off_t offset,  in flash_sam0_write()  argument
243 	LOG_DBG("0x%lx: len %zu", (long)offset, len);  in flash_sam0_write()
245 	err = flash_sam0_valid_range(offset, len);  in flash_sam0_write()
261 		off_t  start    = offset % sizeof(ctx->buf);  in flash_sam0_write()
262 		off_t  base     = offset - start;  in flash_sam0_write()
272 		offset += len_step;  in flash_sam0_write()
289 static int flash_sam0_write(const struct device *dev, off_t offset,  in flash_sam0_write()  argument
295 	err = flash_sam0_valid_range(offset, len);  in flash_sam0_write()
300 	if ((offset % FLASH_WRITE_BLK_SZ) != 0) {  in flash_sam0_write()
301 		LOG_WRN("0x%lx: not on a write block boundary", (long)offset);  in flash_sam0_write()
315 		size_t eop_len = FLASH_PAGE_SIZE - (offset % FLASH_PAGE_SIZE);  in flash_sam0_write()
319 			err = flash_sam0_write_page(dev, offset, pdata, write_len);  in flash_sam0_write()
324 			offset += write_len;  in flash_sam0_write()
344 static int flash_sam0_read(const struct device *dev, off_t offset, void *data,  in flash_sam0_read()  argument
349 	err = flash_sam0_valid_range(offset, len);  in flash_sam0_read()
354 	memcpy(data, (uint8_t *)CONFIG_FLASH_BASE_ADDRESS + offset, len);  in flash_sam0_read()
359 static int flash_sam0_erase(const struct device *dev, off_t offset,  in flash_sam0_erase()  argument
364 	err = flash_sam0_valid_range(offset, ROW_SIZE);  in flash_sam0_erase()
369 	if ((offset % ROW_SIZE) != 0) {  in flash_sam0_erase()
370 		LOG_WRN("0x%lx: not on a page boundary", (long)offset);  in flash_sam0_erase()
383 		for (size_t addr = offset; addr < offset + size;  in flash_sam0_erase()
405 	off_t offset;  in flash_sam0_write_protection()  local
408 	for (offset = 0; offset < CONFIG_FLASH_SIZE * 1024;  in flash_sam0_write_protection()
409 	     offset += LOCK_REGION_SIZE) {  in flash_sam0_write_protection()
410 		NVMCTRL->ADDR.reg = offset + CONFIG_FLASH_BASE_ADDRESS;  in flash_sam0_write_protection()
429 		err = flash_sam0_check_status(offset);  in flash_sam0_write_protection()