diff options
| author | Przemyslaw Marczak <p.marczak@samsung.com> | 2013-10-23 14:30:42 +0200 |
|---|---|---|
| committer | Marek Vasut <marex@denx.de> | 2013-11-08 20:46:19 +0100 |
| commit | 93c813b3ac4b23df891992f93252c59231dec388 (patch) | |
| tree | 09845f95edb591abcf64f35ffcb57019e6cf25e1 /include/usb_mass_storage.h | |
| parent | 2cee0408e5c6f5dbdfa89fb40168ba2ead3f61a6 (diff) | |
usb: ums: code refactoring to improve reusability on other boards.
This patch introduces some cleanups to ums code. Changes:
ums common:
- introduce UMS_START_SECTOR and UMS_NUM_SECTORS as defined in
usb_mass_storage.h both default values as 0 if board config
doesn't define them
common cleanup changes:
- change name of struct "ums_board_info" to "ums"
- "ums_device" fields are moved to struct ums and "dev_num" is removed
- change function name: board_ums_init to ums_init
- remove "extern" prefixes from usb_mass_storage.h
cmd_usb_mass_storage:
- change error() to printf() if need to print info message
- change return values to command_ret_t type at ums command code
- add command usage string
Changes v2:
ums common:
- always returns number of read/write sectors
- coding style clean-up
ums gadget:
- calculate amount of read/write from device returned value.
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Diffstat (limited to 'include/usb_mass_storage.h')
| -rw-r--r-- | include/usb_mass_storage.h | 33 |
1 files changed, 18 insertions, 15 deletions
diff --git a/include/usb_mass_storage.h b/include/usb_mass_storage.h index 13f535ce2e4..674ca70c59a 100644 --- a/include/usb_mass_storage.h +++ b/include/usb_mass_storage.h @@ -9,32 +9,35 @@ #define __USB_MASS_STORAGE_H__ #define SECTOR_SIZE 0x200 - #include <mmc.h> #include <linux/usb/composite.h> -struct ums_device { - struct mmc *mmc; - int dev_num; - int offset; - int part_size; -}; +#ifndef UMS_START_SECTOR +#define UMS_START_SECTOR 0 +#endif -struct ums_board_info { - int (*read_sector)(struct ums_device *ums_dev, +#ifndef UMS_NUM_SECTORS +#define UMS_NUM_SECTORS 0 +#endif + +struct ums { + int (*read_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, void *buf); - int (*write_sector)(struct ums_device *ums_dev, + int (*write_sector)(struct ums *ums_dev, ulong start, lbaint_t blkcnt, const void *buf); - void (*get_capacity)(struct ums_device *ums_dev, + void (*get_capacity)(struct ums *ums_dev, long long int *capacity); const char *name; - struct ums_device ums_dev; + struct mmc *mmc; + int offset; + int part_size; }; -int fsg_init(struct ums_board_info *); +extern struct ums *ums; + +int fsg_init(struct ums *); void fsg_cleanup(void); -struct ums_board_info *board_ums_init(unsigned int, unsigned int, - unsigned int); +struct ums *ums_init(unsigned int); int fsg_main_thread(void *); #ifdef CONFIG_USB_GADGET_MASS_STORAGE |