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Add Flash/NAND bank command argument helpers. 

This eliminates redundant code for parsing and retreiving the bank
specified from a script command argument.  This patch was written to
replace existing functionality; however, the parsing logic can be
updated later to allow flash commands to accept bank names as well as
their numbers.
This commit is contained in:
Zachary T Welch 2009-10-23 01:13:19 -07:00
parent 4189fdad28
commit 11e545f560
4 changed files with 45 additions and 0 deletions
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17
src/flash/flash.c
View File

@ -255,6 +255,23 @@ flash_bank_t *get_flash_bank_by_num(int num)
return p;
}
int flash_command_get_bank_by_num(
struct command_context_s *cmd_ctx, char *str, flash_bank_t **bank)
{
unsigned bank_num;
COMMAND_PARSE_NUMBER(uint, str, bank_num);
*bank = get_flash_bank_by_num(bank_num);
if (!*bank)
{
command_print(cmd_ctx,
"flash bank '#%u' not found", bank_num);
return ERROR_INVALID_ARGUMENTS;
}
return ERROR_OK;
}
static int handle_flash_bank_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
{
int retval;

10
src/flash/flash.h
View File

@ -313,6 +313,16 @@ extern int default_flash_mem_blank_check(struct flash_bank_s *bank);
* @returns A flash_bank_t for flash bank @a num, or NULL
*/
extern flash_bank_t *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.
* @param cmd_ctx The command context for reporting errors.
* @param str The string 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.
*/
int flash_command_get_bank_by_num(
struct command_context_s *cmd_ctx, char *str, flash_bank_t **bank);
/**
* Returns the flash bank like get_flash_bank_by_num(), without probing.
* @param num The flash bank number.

13
src/flash/nand.c
View File

@ -340,6 +340,19 @@ nand_device_t *get_nand_device_by_num(int num)
return NULL;
}
int nand_command_get_device_by_num(struct command_context_s *cmd_ctx,
char *str, nand_device_t **device)
{
unsigned num;
COMMAND_PARSE_NUMBER(uint, str, num);
*device = get_nand_device_by_num(num);
if (!*device) {
command_print(cmd_ctx, "NAND flash device '#%s' is out of bounds", str);
return ERROR_INVALID_ARGUMENTS;
}
return ERROR_OK;
}
static int nand_build_bbt(struct nand_device_s *device, int first, int last)
{
uint32_t page = 0x0;

5
src/flash/nand.h
View File

@ -217,6 +217,11 @@ extern int nand_calculate_ecc_kw(struct nand_device_s *device, const uint8_t *da
extern int nand_register_commands(struct command_context_s *cmd_ctx);
extern int nand_init(struct command_context_s *cmd_ctx);
/// helper for parsing a nand device command argument string
int nand_command_get_device_by_num(struct command_context_s *cmd_ctx,
char *str, nand_device_t **device);
#define ERROR_NAND_DEVICE_INVALID (-1100)
#define ERROR_NAND_OPERATION_FAILED (-1101)
#define ERROR_NAND_OPERATION_TIMEOUT (-1102)