/* Misc _get_dev functions */
#ifdef CONFIG_PARTITIONS
/**
- * get_dev() - get a pointer to a block device given its type and number
+ * blk_get_dev() - get a pointer to a block device given its type and number
*
* Each interface allocates its own devices and typically struct blk_desc is
* contained with the interface's data structure. There is no global
* @return pointer to the block device, or NULL if not available, or an
* error occurred.
*/
-struct blk_desc *get_dev(const char *ifname, int dev);
+struct blk_desc *blk_get_dev(const char *ifname, int dev);
struct blk_desc *ide_get_dev(int dev);
struct blk_desc *sata_get_dev(int dev);
struct blk_desc *scsi_get_dev(int dev);
int host_get_dev_err(int dev, struct blk_desc **blk_devp);
/* disk/part.c */
-int get_partition_info(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
-void print_part(struct blk_desc *dev_desc);
-void init_part(struct blk_desc *dev_desc);
+int part_get_info(struct blk_desc *dev_desc, int part, disk_partition_t *info);
+void part_print(struct blk_desc *dev_desc);
+void part_init(struct blk_desc *dev_desc);
void dev_print(struct blk_desc *dev_desc);
-int get_device(const char *ifname, const char *dev_str,
- struct blk_desc **dev_desc);
-int get_device_and_partition(const char *ifname, const char *dev_part_str,
- struct blk_desc **dev_desc,
- disk_partition_t *info, int allow_whole_dev);
+
+/**
+ * blk_get_device_by_str() - Get a block device given its interface/hw partition
+ *
+ * Each interface allocates its own devices and typically struct blk_desc is
+ * contained with the interface's data structure. There is no global
+ * numbering for block devices, so the interface name must be provided.
+ *
+ * The hardware parition is not related to the normal software partitioning
+ * of a device - each hardware partition is effectively a separately
+ * accessible block device. When a hardware parition is selected on MMC the
+ * other hardware partitions become inaccessible. The same block device is
+ * used to access all hardware partitions, but its capacity may change when a
+ * different hardware partition is selected.
+ *
+ * When a hardware partition number is given, the block device switches to
+ * that hardware partition.
+ *
+ * @ifname: Interface name (e.g. "ide", "scsi")
+ * @dev_str: Device and optional hw partition. This can either be a string
+ * containing the device number (e.g. "2") or the device number
+ * and hardware partition number (e.g. "2.4") for devices that
+ * support it (currently only MMC).
+ * @dev_desc: Returns a pointer to the block device on success
+ * @return block device number (local to the interface), or -1 on error
+ */
+int blk_get_device_by_str(const char *ifname, const char *dev_str,
+ struct blk_desc **dev_desc);
+
+/**
+ * blk_get_device_part_str() - Get a block device and partition
+ *
+ * This calls blk_get_device_by_str() to look up a device. It also looks up
+ * a partition and returns information about it.
+ *
+ * @dev_part_str is in the format:
+ * <dev>.<hw_part>:<part> where <dev> is the device number,
+ * <hw_part> is the optional hardware partition number and
+ * <part> is the partition number
+ *
+ * If ifname is "hostfs" then this function returns the sandbox host block
+ * device.
+ *
+ * If ifname is ubi, then this function returns 0, with @info set to a
+ * special UBI device.
+ *
+ * If @dev_part_str is NULL or empty or "-", then this function looks up
+ * the "bootdevice" environment variable and uses that string instead.
+ *
+ * If the partition string is empty then the first partition is used. If the
+ * partition string is "auto" then the first bootable partition is used.
+ *
+ * @ifname: Interface name (e.g. "ide", "scsi")
+ * @dev_part_str: Device and partition string
+ * @dev_desc: Returns a pointer to the block device on success
+ * @info: Returns partition information
+ * @allow_whole_dev: true to allow the user to select partition 0
+ * (which means the whole device), false to require a valid
+ * partition number >= 1
+ * @return partition number, or -1 on error
+ *
+ */
+int blk_get_device_part_str(const char *ifname, const char *dev_part_str,
+ struct blk_desc **dev_desc,
+ disk_partition_t *info, int allow_whole_dev);
#else
-static inline struct blk_desc *get_dev(const char *ifname, int dev)
+static inline struct blk_desc *blk_get_dev(const char *ifname, int dev)
{ return NULL; }
static inline struct blk_desc *ide_get_dev(int dev) { return NULL; }
static inline struct blk_desc *sata_get_dev(int dev) { return NULL; }
static inline struct blk_desc *mg_disk_get_dev(int dev) { return NULL; }
static inline struct blk_desc *host_get_dev(int dev) { return NULL; }
-static inline int get_partition_info(struct blk_desc *dev_desc, int part,
- disk_partition_t *info) { return -1; }
-static inline void print_part(struct blk_desc *dev_desc) {}
-static inline void init_part(struct blk_desc *dev_desc) {}
+static inline int part_get_info(struct blk_desc *dev_desc, int part,
+ disk_partition_t *info) { return -1; }
+static inline void part_print(struct blk_desc *dev_desc) {}
+static inline void part_init(struct blk_desc *dev_desc) {}
static inline void dev_print(struct blk_desc *dev_desc) {}
-static inline int get_device(const char *ifname, const char *dev_str,
- struct blk_desc **dev_desc)
+static inline int blk_get_device_by_str(const char *ifname, const char *dev_str,
+ struct blk_desc **dev_desc)
{ return -1; }
-static inline int get_device_and_partition(const char *ifname,
+static inline int blk_get_device_part_str(const char *ifname,
const char *dev_part_str,
struct blk_desc **dev_desc,
disk_partition_t *info,
{ *dev_desc = NULL; return -1; }
#endif
-#ifdef CONFIG_MAC_PARTITION
-/* disk/part_mac.c */
-int get_partition_info_mac(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
-void print_part_mac(struct blk_desc *dev_desc);
-int test_part_mac(struct blk_desc *dev_desc);
+/*
+ * We don't support printing partition information in SPL and only support
+ * getting partition information in a few cases.
+ */
+#ifdef CONFIG_SPL_BUILD
+# define part_print_ptr(x) NULL
+# if defined(CONFIG_SPL_EXT_SUPPORT) || \
+ defined(CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION)
+# define part_get_info_ptr(x) x
+# else
+# define part_get_info_ptr(x) NULL
+# endif
+#else
+#define part_print_ptr(x) x
+#define part_get_info_ptr(x) x
#endif
-#ifdef CONFIG_DOS_PARTITION
-/* disk/part_dos.c */
-int get_partition_info_dos(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
-void print_part_dos(struct blk_desc *dev_desc);
-int test_part_dos(struct blk_desc *dev_desc);
-#endif
-#ifdef CONFIG_ISO_PARTITION
-/* disk/part_iso.c */
-int get_partition_info_iso(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
-void print_part_iso(struct blk_desc *dev_desc);
-int test_part_iso(struct blk_desc *dev_desc);
-#endif
+struct part_driver {
+ const char *name;
+ int part_type;
-#ifdef CONFIG_AMIGA_PARTITION
-/* disk/part_amiga.c */
-int get_partition_info_amiga(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
-void print_part_amiga(struct blk_desc *dev_desc);
-int test_part_amiga(struct blk_desc *dev_desc);
-#endif
+ /**
+ * get_info() - Get information about a partition
+ *
+ * @dev_desc: Block device descriptor
+ * @part: Partition number (1 = first)
+ * @info: Returns partition information
+ */
+ int (*get_info)(struct blk_desc *dev_desc, int part,
+ disk_partition_t *info);
+
+ /**
+ * print() - Print partition information
+ *
+ * @dev_desc: Block device descriptor
+ */
+ void (*print)(struct blk_desc *dev_desc);
+
+ /**
+ * test() - Test if a device contains this partition type
+ *
+ * @dev_desc: Block device descriptor
+ * @return 0 if the block device appears to contain this partition
+ * type, -ve if not
+ */
+ int (*test)(struct blk_desc *dev_desc);
+};
+
+/* Declare a new U-Boot partition 'driver' */
+#define U_BOOT_PART_TYPE(__name) \
+ ll_entry_declare(struct part_driver, __name, part_driver)
#ifdef CONFIG_EFI_PARTITION
#include <part_efi.h>
/* disk/part_efi.c */
-int get_partition_info_efi(struct blk_desc *dev_desc, int part,
- disk_partition_t *info);
/**
- * get_partition_info_efi_by_name() - Find the specified GPT partition table entry
+ * part_get_info_efi_by_name() - Find the specified GPT partition table entry
*
* @param dev_desc - block device descriptor
* @param gpt_name - the specified table entry name
*
* @return - '0' on match, '-1' on no match, otherwise error
*/
-int get_partition_info_efi_by_name(struct blk_desc *dev_desc,
- const char *name, disk_partition_t *info);
-void print_part_efi(struct blk_desc *dev_desc);
-int test_part_efi(struct blk_desc *dev_desc);
+int part_get_info_efi_by_name(struct blk_desc *dev_desc,
+ const char *name, disk_partition_t *info);
/**
* write_gpt_table() - Write the GUID Partition Table to disk
projects / u-boot / blobdiff