#define __MTD_MTD_H__
#include <linux/types.h>
-#include <linux/module.h>
#include <linux/uio.h>
#include <linux/notifier.h>
#include <linux/device.h>
#define MTD_CHAR_MAJOR 90
#define MTD_BLOCK_MAJOR 31
-#define MTD_ERASE_PENDING 0x01
+#define MTD_ERASE_PENDING 0x01
#define MTD_ERASING 0x02
#define MTD_ERASE_SUSPEND 0x04
-#define MTD_ERASE_DONE 0x08
-#define MTD_ERASE_FAILED 0x10
+#define MTD_ERASE_DONE 0x08
+#define MTD_ERASE_FAILED 0x10
#define MTD_FAIL_ADDR_UNKNOWN -1LL
-/* If the erase fails, fail_addr might indicate exactly which block failed. If
- fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level or was not
- specific to any particular block. */
+/*
+ * If the erase fails, fail_addr might indicate exactly which block failed. If
+ * fail_addr = MTD_FAIL_ADDR_UNKNOWN, the failure was not at the device level
+ * or was not specific to any particular block.
+ */
struct erase_info {
struct mtd_info *mtd;
uint64_t addr;
};
struct mtd_erase_region_info {
- uint64_t offset; /* At which this region starts, from the beginning of the MTD */
+ uint64_t offset; /* At which this region starts, from the beginning of the MTD */
uint32_t erasesize; /* For this region */
uint32_t numblocks; /* Number of blocks of erasesize in this region */
unsigned long *lockmap; /* If keeping bitmap of locks */
};
-/*
- * oob operation modes
- *
- * MTD_OOB_PLACE: oob data are placed at the given offset
- * MTD_OOB_AUTO: oob data are automatically placed at the free areas
- * which are defined by the ecclayout
- * MTD_OOB_RAW: mode to read oob and data without doing ECC checking
- */
-typedef enum {
- MTD_OOB_PLACE,
- MTD_OOB_AUTO,
- MTD_OOB_RAW,
-} mtd_oob_mode_t;
-
/**
* struct mtd_oob_ops - oob operation operands
* @mode: operation mode
* @ooblen: number of oob bytes to write/read
* @oobretlen: number of oob bytes written/read
* @ooboffs: offset of oob data in the oob area (only relevant when
- * mode = MTD_OOB_PLACE)
+ * mode = MTD_OPS_PLACE_OOB or MTD_OPS_RAW)
* @datbuf: data buffer - if NULL only oob data are read/written
* @oobbuf: oob data buffer
*
* OOB area.
*/
struct mtd_oob_ops {
- mtd_oob_mode_t mode;
+ unsigned int mode;
size_t len;
size_t retlen;
size_t ooblen;
struct nand_oobfree oobfree[MTD_MAX_OOBFREE_ENTRIES_LARGE];
};
+struct module; /* only needed for owner field in mtd_info */
+
struct mtd_info {
u_char type;
uint32_t flags;
const char *name;
int index;
- /* ecc layout structure pointer - read only ! */
+ /* ECC layout structure pointer - read only! */
struct nand_ecclayout *ecclayout;
/* Data for variable erase regions. If numeraseregions is zero,
struct mtd_erase_region_info *eraseregions;
/*
- * Erase is an asynchronous operation. Device drivers are supposed
- * to call instr->callback() whenever the operation completes, even
- * if it completes with a failure.
- * Callers are supposed to pass a callback function and wait for it
- * to be called before writing to the block.
+ * Do not call via these pointers, use corresponding mtd_*()
+ * wrappers instead.
*/
int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
-
- /* This stuff for eXecute-In-Place */
- /* phys is optional and may be set to NULL */
int (*point) (struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, void **virt, resource_size_t *phys);
+ size_t *retlen, void **virt, resource_size_t *phys);
/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
void (*put_device) (struct mtd_info *mtd);
};
+/*
+ * Erase is an asynchronous operation. Device drivers are supposed
+ * to call instr->callback() whenever the operation completes, even
+ * if it completes with a failure.
+ * Callers are supposed to pass a callback function and wait for it
+ * to be called before writing to the block.
+ */
+static inline int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+ return mtd->erase(mtd, instr);
+}
+
+/*
+ * This stuff for eXecute-In-Place. phys is optional and may be set to NULL.
+ */
+static inline int mtd_point(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, void **virt, resource_size_t *phys)
+{
+ return mtd->point(mtd, from, len, retlen, virt, phys);
+}
+
static inline struct mtd_info *dev_to_mtd(struct device *dev)
{
return dev ? dev_get_drvdata(dev) : NULL;
/* Kernel-side ioctl definitions */
struct mtd_partition;
-
-extern int mtd_device_register(struct mtd_info *master,
- const struct mtd_partition *parts,
- int nr_parts);
+struct mtd_part_parser_data;
+
+extern int mtd_device_parse_register(struct mtd_info *mtd,
+ const char **part_probe_types,
+ struct mtd_part_parser_data *parser_data,
+ const struct mtd_partition *defparts,
+ int defnr_parts);
+#define mtd_device_register(master, parts, nr_parts) \
+ mtd_device_parse_register(master, NULL, NULL, parts, nr_parts)
extern int mtd_device_unregister(struct mtd_info *master);
extern struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num);
extern int __get_mtd_device(struct mtd_info *mtd);
void mtd_erase_callback(struct erase_info *instr);
-/*
- * Debugging macro and defines
- */
-#define MTD_DEBUG_LEVEL0 (0) /* Quiet */
-#define MTD_DEBUG_LEVEL1 (1) /* Audible */
-#define MTD_DEBUG_LEVEL2 (2) /* Loud */
-#define MTD_DEBUG_LEVEL3 (3) /* Noisy */
-
-#ifdef CONFIG_MTD_DEBUG
-#define DEBUG(n, args...) \
- do { \
- if (n <= CONFIG_MTD_DEBUG_VERBOSE) \
- printk(KERN_INFO args); \
- } while(0)
-#else /* CONFIG_MTD_DEBUG */
-#define DEBUG(n, args...) \
- do { \
- if (0) \
- printk(KERN_INFO args); \
- } while(0)
-
-#endif /* CONFIG_MTD_DEBUG */
+static inline int mtd_is_bitflip(int err) {
+ return err == -EUCLEAN;
+}
+
+static inline int mtd_is_eccerr(int err) {
+ return err == -EBADMSG;
+}
+
+static inline int mtd_is_bitflip_or_eccerr(int err) {
+ return mtd_is_bitflip(err) || mtd_is_eccerr(err);
+}
#endif /* __MTD_MTD_H__ */
projects / deliverable / linux.git / blobdiff