93c813b3ac
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>
51 lines
1 KiB
C
51 lines
1 KiB
C
/*
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* Copyright (C) 2011 Samsung Electrnoics
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* Lukasz Majewski <l.majewski@samsung.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __USB_MASS_STORAGE_H__
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#define __USB_MASS_STORAGE_H__
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#define SECTOR_SIZE 0x200
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#include <mmc.h>
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#include <linux/usb/composite.h>
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#ifndef UMS_START_SECTOR
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#define UMS_START_SECTOR 0
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#endif
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#ifndef UMS_NUM_SECTORS
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#define UMS_NUM_SECTORS 0
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#endif
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struct ums {
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int (*read_sector)(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, void *buf);
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int (*write_sector)(struct ums *ums_dev,
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ulong start, lbaint_t blkcnt, const void *buf);
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void (*get_capacity)(struct ums *ums_dev,
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long long int *capacity);
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const char *name;
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struct mmc *mmc;
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int offset;
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int part_size;
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};
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extern struct ums *ums;
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int fsg_init(struct ums *);
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void fsg_cleanup(void);
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struct ums *ums_init(unsigned int);
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int fsg_main_thread(void *);
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#ifdef CONFIG_USB_GADGET_MASS_STORAGE
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int fsg_add(struct usb_configuration *c);
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#else
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int fsg_add(struct usb_configuration *c)
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{
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return 0;
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}
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#endif
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#endif /* __USB_MASS_STORAGE_H__ */
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