* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * Copyright (C) 2007,2008 Øyvind Harboe *
+ * Copyright (C) 2007,2008 Øyvind Harboe *
* oyvind.harboe@zylin.com *
* *
* Copyright (C) 2008 by Spencer Oliver *
#include "target.h"
#include "log.h"
-struct image_s;
+struct image;
#define FLASH_MAX_ERROR_STR (128)
* within a flash bank. A single bank typically consists of multiple
* sectors, each of which can be erased and protected independently.
*/
-typedef struct flash_sector_s
+struct flash_sector
{
/// Bus offset from start of the flash chip (in bytes).
- u32 offset;
+ uint32_t offset;
/// Number of bytes in this flash sector.
- u32 size;
+ uint32_t size;
/**
- * Indication of erasure status: 0=not erased, 1=erased,
- * other=unknown. Set by @c flash_driver_s::erase_check.
+ * Indication of erasure status: 0 = not erased, 1 = erased,
+ * other = unknown. Set by @c flash_driver_s::erase_check.
*/
int is_erased;
/**
- * Indication of protection status: 0=unprotected/unlocked,
- * 1=protected/locked, other=unknown. Set by
+ * Indication of protection status: 0 = unprotected/unlocked,
+ * 1 = protected/locked, other = unknown. Set by
* @c flash_driver_s::protect_check.
*/
int is_protected;
-} flash_sector_t;
+};
-struct flash_bank_s;
+struct flash_bank;
+
+#define __FLASH_BANK_COMMAND(name) \
+ COMMAND_HELPER(name, struct flash_bank *bank)
/**
* @brief Provides the implementation-independent structure that defines
* corresponding static <code>flash_driver_<i>callback</i>()</code>
* routine in flash.c.
*/
-typedef struct flash_driver_s
+struct flash_driver
{
- /**
+ /**
* Gives a human-readable name of this flash driver,
* This field is used to select and initialize the driver.
*/
char *name;
- /**
- * Registers driver-specific commands. When called (during the
- * "flash bank" command), the driver may register addition
+ /**
+ * An array of driver-specific commands to register. When called
+ * during the "flash bank" command, the driver can register addition
* commands to support new flash chip functions.
- *
- * @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*register_commands)(struct command_context_s *cmd_ctx);
+ const struct command_registration *commands;
- /**
+ /**
* Finish the "flash bank" command for @a bank. The
* @a bank parameter will have been filled in by the core flash
* layer when this routine is called, and the driver can store
- * additional information in its flash_bank_t::driver_priv field.
- *
- * @param cmd_ctx - the command context
- * @param cmd - the command, in this case 'flash'
- * @param args - parameters, see below
- * @param argc - number of parameters on command line
- * @param bank - new filled in flash bank.
+ * additional information in its struct flash_bank::driver_priv field.
*
- * The args are: @par
+ * The CMD_ARGV are: @par
* @code
- * args[0] = bank
- * args[1] = drivername {name above}
- * args[2] = baseaddress
- * args[3] = lengthbytes
- * args[4] = chip_width_in bytes
- * args[5] = bus_width_bytes
- * args[6] = driver-specific parameters
+ * CMD_ARGV[0] = bank
+ * CMD_ARGV[1] = drivername {name above}
+ * CMD_ARGV[2] = baseaddress
+ * CMD_ARGV[3] = lengthbytes
+ * CMD_ARGV[4] = chip_width_in bytes
+ * CMD_ARGV[5] = bus_width_bytes
+ * CMD_ARGV[6] = driver-specific parameters
* @endcode
*
- * For example, args[4] = 16 bit flash, args[5] = 32bit bus.
+ * For example, CMD_ARGV[4] = 16 bit flash, CMD_ARGV[5] = 32bit bus.
*
- * If extra arguments are provided (@a argc > 6), they will
- * start in @a args[6]. These can be used to implement
+ * If extra arguments are provided (@a CMD_ARGC > 6), they will
+ * start in @a CMD_ARGV[6]. These can be used to implement
* driver-specific extensions.
*
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*flash_bank_command)(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct flash_bank_s *bank);
+ __FLASH_BANK_COMMAND((*flash_bank_command));
- /**
+ /**
* Bank/sector erase routine (target-specific). When
* called, the flash driver should erase the specified sectors
* using whatever means are at its disposal.
* @param last The number of the last sector to erase, typically N-1.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*erase)(struct flash_bank_s *bank, int first, int last);
+ int (*erase)(struct flash_bank *bank, int first, int last);
- /**
+ /**
* Bank/sector protection routine (target-specific).
* When called, the driver should disable 'flash write' bits (or
* enable 'erase protection' bits) for the given @a bank and @a
* @param last The last sector to (un)project, typically N-1.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*protect)(struct flash_bank_s *bank, int set, int first, int last);
+ int (*protect)(struct flash_bank *bank, int set, int first, int last);
- /**
+ /**
* Program data into the flash. Note CPU address will be
* "bank->base + offset", while the physical address is
* dependent upon current target MMU mappings.
* @param count The number of bytes to write.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*write)(struct flash_bank_s *bank, u8 *buffer, u32 offset, u32 count);
+ int (*write)(struct flash_bank *bank,
+ uint8_t *buffer, uint32_t offset, uint32_t count);
- /**
+ /**
* Probe to determine what kind of flash is present.
* This is invoked by the "probe" script command.
*
* @param bank The bank to probe
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*probe)(struct flash_bank_s *bank);
-
- /**
+ int (*probe)(struct flash_bank *bank);
+
+ /**
* Check the erasure status of a flash bank.
* When called, the driver routine must perform the required
* checks and then set the @c flash_sector_s::is_erased field
* @param bank The bank to check
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*erase_check)(struct flash_bank_s *bank);
+ int (*erase_check)(struct flash_bank *bank);
/**
* Determine if the specific bank is "protected" or not.
* @param bank - the bank to check
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*protect_check)(struct flash_bank_s *bank);
+ int (*protect_check)(struct flash_bank *bank);
/**
* Display human-readable information about the flash
* @param char - where to put the text for the human to read
* @param buf_size - the size of the human buffer.
* @returns ERROR_OK if successful; otherwise, an error code.
- */
- int (*info)(struct flash_bank_s *bank, char *buf, int buf_size);
+ */
+ int (*info)(struct flash_bank *bank, char *buf, int buf_size);
/**
* A more gentle flavor of filash_driver_s::probe, performing
* @param bank - the bank to probe
* @returns ERROR_OK if successful; otherwise, an error code.
*/
- int (*auto_probe)(struct flash_bank_s *bank);
-} flash_driver_t;
+ int (*auto_probe)(struct flash_bank *bank);
+};
+
+#define FLASH_BANK_COMMAND_HANDLER(name) static __FLASH_BANK_COMMAND(name)
-/**
+/**
* Provides details of a flash bank, available either on-chip or through
* a major interface.
*
* may use the @c driver_priv member to store additional data on a
* per-bank basis, if required.
*/
-typedef struct flash_bank_s
+struct flash_bank
{
- struct target_s *target; /**< Target to which this bank belongs. */
+ char *name;
- flash_driver_t *driver; /**< Driver for this bank. */
+ struct target *target; /**< Target to which this bank belongs. */
+
+ struct flash_driver *driver; /**< Driver for this bank. */
void *driver_priv; /**< Private driver storage pointer */
int bank_number; /**< The 'bank' (or chip number) of this instance. */
- u32 base; /**< The base address of this bank */
- u32 size; /**< The size of this chip bank, in bytes */
+ uint32_t base; /**< The base address of this bank */
+ uint32_t size; /**< The size of this chip bank, in bytes */
int chip_width; /**< Width of the chip in bytes (1,2,4 bytes) */
int bus_width; /**< Maximum bus width, in bytes (1,2,4 bytes) */
*/
int num_sectors;
/// Array of sectors, allocated and initilized by the flash driver
- flash_sector_t *sectors;
+ struct flash_sector *sectors;
- struct flash_bank_s *next; /**< The next flash bank on this chip */
-} flash_bank_t;
+ struct flash_bank *next; /**< The next flash bank on this chip */
+};
/// Registers the 'flash' subsystem commands
-extern int flash_register_commands(struct command_context_s *cmd_ctx);
+int flash_register_commands(struct command_context *cmd_ctx);
/// Initializes the 'flash' subsystem drivers
-extern int flash_init_drivers(struct command_context_s *cmd_ctx);
+int flash_init_drivers(struct command_context *cmd_ctx);
/**
* Erases @a length bytes in the @a target flash, starting at @a addr.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
-extern int flash_erase_address_range(struct target_s *target, u32 addr, u32 length);
+int flash_erase_address_range(struct target *target,
+ uint32_t addr, uint32_t length);
/**
* Writes @a image into the @a target flash. The @a written parameter
- * will contain the
+ * will contain the
* @param target The target with the flash to be programmed.
* @param image The image that will be programmed to flash.
* @param written On return, contains the number of bytes written.
* erase the corresponding banks or sectors before programming.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
-extern int flash_write(struct target_s *target, struct image_s *image, u32 *written, int erase);
+int flash_write(struct target *target,
+ struct image *image, uint32_t *written, int erase);
/**
* Forces targets to re-examine their erase/protection state.
* This routine must be called when the system may modify the status.
*/
-extern void flash_set_dirty(void);
+void flash_set_dirty(void);
/// @returns The number of flash banks currently defined.
-extern int flash_get_bank_count(void);
+int flash_get_bank_count(void);
/**
* Provides default erased-bank check handling. Checks to see if
* the flash driver knows they are erased; if things look uncertain,
* this routine will call default_flash_mem_blank_check() to confirm.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
-extern int default_flash_blank_check(struct flash_bank_s *bank);
+int default_flash_blank_check(struct flash_bank *bank);
/**
* Provides a default blank flash memory check. Ensures the contents
* of the given bank have truly been erased.
* @param bank The flash bank.
* @returns ERROR_OK if successful; otherwise, an error code.
*/
-extern int default_flash_mem_blank_check(struct flash_bank_s *bank);
+int default_flash_mem_blank_check(struct flash_bank *bank);
+/**
+ * Returns the flash bank specified by @a name, which matches the
+ * driver name and a suffix (option) specify the driver-specific
+ * bank number. The suffix consists of the '.' and the driver-specific
+ * bank number: when two str9x banks are defined, then 'str9x.1' refers
+ * to the second.
+ */
+struct flash_bank *get_flash_bank_by_name(const char *name);
/**
* Returns a flash bank by the specified flash_bank_s bank_number, @a num.
* @param num The flash bank number.
- * @returns A flash_bank_t for flash bank @a num, or NULL
+ * @returns A struct flash_bank for flash bank @a num, or NULL
+ */
+struct flash_bank *get_flash_bank_by_num(int num);
+/**
+ * Retreives @a bank from a command argument, reporting errors parsing
+ * the bank identifier or retreiving the specified bank. The bank
+ * may be identified by its bank number or by @c name.instance, where
+ * @a instance is driver-specific.
+ * @param name_index The index to the string in args containing the
+ * bank identifier.
+ * @param bank On output, contians a pointer to the bank or NULL.
+ * @returns ERROR_OK on success, or an error indicating the problem.
*/
-extern flash_bank_t *get_flash_bank_by_num(int num);
+COMMAND_HELPER(flash_command_get_bank, unsigned name_index,
+ struct flash_bank **bank);
/**
* Returns the flash bank like get_flash_bank_by_num(), without probing.
* @param num The flash bank number.
- * @returns A flash_bank_t for flash bank @a num, or NULL.
+ * @returns A struct flash_bank for flash bank @a num, or NULL.
*/
-extern flash_bank_t *get_flash_bank_by_num_noprobe(int num);
+struct flash_bank *get_flash_bank_by_num_noprobe(int num);
/**
* Returns the flash bank located at a specified address.
* @param target The target, presumed to contain one or more banks.
* @param addr An address that is within the range of the bank.
- * @returns The flash_bank_t located at @a addr, or NULL.
+ * @returns The struct flash_bank located at @a addr, or NULL.
*/
-extern flash_bank_t *get_flash_bank_by_addr(struct target_s *target, u32 addr);
+struct flash_bank *get_flash_bank_by_addr(struct target *target, uint32_t addr);
#define ERROR_FLASH_BANK_INVALID (-900)
#define ERROR_FLASH_SECTOR_INVALID (-901)
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