1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright © 2009 - Maxim Levitsky
4 * SmartMedia/xD translation layer
6 * Based loosly on ssfdc.c which is
8 * Author: Claudio Lanconelli <lanconelli.claudio@eptar.com>
11 #include <linux/mtd/blktrans.h>
12 #include <linux/kfifo.h>
13 #include <linux/sched.h>
14 #include <linux/completion.h>
15 #include <linux/mtd/mtd.h>
21 int16_t *lba_to_phys_table; /* LBA to physical table */
22 struct kfifo free_sectors; /* queue of free sectors */
26 struct mtd_blktrans_dev *trans;
28 struct mutex mutex; /* protects the structure */
29 struct ftl_zone *zones; /* FTL tables for each zone */
31 /* Media information */
32 int block_size; /* block size in bytes */
33 int zone_size; /* zone size in blocks */
34 int zone_count; /* number of zones */
35 int max_lba; /* maximum lba in a zone */
36 int smallpagenand; /* 256 bytes/page nand */
37 bool readonly; /* is FS readonly */
39 int cis_block; /* CIS block location */
40 int cis_boffset; /* CIS offset in the block */
41 int cis_page_offset; /* CIS offset in the page */
42 void *cis_buffer; /* tmp buffer for cis reads */
45 int cache_block; /* block number of cached block */
46 int cache_zone; /* zone of cached block */
47 unsigned char *cache_data; /* cached block data */
48 long unsigned int cache_data_invalid_bitmap;
50 struct work_struct flush_work;
51 struct timer_list timer;
58 struct attribute_group *disk_attributes;
69 #define SM_FTL_PARTN_BITS 3
71 #define sm_printk(format, ...) \
72 printk(KERN_WARNING "sm_ftl" ": " format "\n", ## __VA_ARGS__)
74 #define dbg(format, ...) \
76 printk(KERN_DEBUG "sm_ftl" ": " format "\n", ## __VA_ARGS__)
78 #define dbg_verbose(format, ...) \
80 printk(KERN_DEBUG "sm_ftl" ": " format "\n", ## __VA_ARGS__)
83 static int sm_erase_block(struct sm_ftl *ftl, int zone_num, uint16_t block,
85 static void sm_mark_block_bad(struct sm_ftl *ftl, int zone_num, int block);
87 static int sm_recheck_media(struct sm_ftl *ftl);