5  * Check MTD device read.
16 #include <linux/mtd/mtd.h>
24 MODULE_PARM_DESC(dev, "MTD device number to use");
26 static struct mtd_info *mtd;  variable
38 	loff_t addr = (loff_t)ebnum * mtd->erasesize;  in read_eraseblock_by_page()
44 		ret = mtdtest_read(mtd, addr, pgsize, buf);  in read_eraseblock_by_page()
49 		if (mtd->oobsize) {  in read_eraseblock_by_page()
55 			ops.ooblen    = mtd->oobsize;  in read_eraseblock_by_page()
60 			ret = mtd_read_oob(mtd, addr, &ops);  in read_eraseblock_by_page()
62 					ops.oobretlen != mtd->oobsize) {  in read_eraseblock_by_page()
70 			oobbuf += mtd->oobsize;  in read_eraseblock_by_page()
86 	n = mtd->erasesize;  in dump_eraseblock()
96 	if (!mtd->oobsize)  in dump_eraseblock()
99 	n = mtd->oobsize;  in dump_eraseblock()
122 		pr_info("Please specify a valid mtd-device via module parameter\n");  in mtd_readtest_init()
126 	pr_info("MTD device: %d\n", dev);  in mtd_readtest_init()
128 	mtd = get_mtd_device(NULL, dev);  in mtd_readtest_init()
129 	if (IS_ERR(mtd)) {  in mtd_readtest_init()
130 		err = PTR_ERR(mtd);  in mtd_readtest_init()
131 		pr_err("error: Cannot get MTD device\n");  in mtd_readtest_init()
135 	if (mtd->writesize == 1) {  in mtd_readtest_init()
140 		pgsize = mtd->writesize;  in mtd_readtest_init()
142 	tmp = mtd->size;  in mtd_readtest_init()
143 	do_div(tmp, mtd->erasesize);  in mtd_readtest_init()
145 	pgcnt = mtd->erasesize / pgsize;  in mtd_readtest_init()
147 	pr_info("MTD device size %llu, eraseblock size %u, "  in mtd_readtest_init()
150 	       (unsigned long long)mtd->size, mtd->erasesize,  in mtd_readtest_init()
151 	       pgsize, ebcnt, pgcnt, mtd->oobsize);  in mtd_readtest_init()
154 	iobuf = kmalloc(mtd->erasesize, GFP_KERNEL);  in mtd_readtest_init()
157 	iobuf1 = kmalloc(mtd->erasesize, GFP_KERNEL);  in mtd_readtest_init()
164 	err = mtdtest_scan_for_bad_eraseblocks(mtd, bbt, 0, ebcnt);  in mtd_readtest_init()
199 	put_mtd_device(mtd);  in mtd_readtest_init()