1 /* 2 * Copyright (C) 2011 Samsung Electrnoics 3 * Lukasz Majewski <l.majewski@samsung.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #ifndef __USB_MASS_STORAGE_H__ 9 #define __USB_MASS_STORAGE_H__ 10 11 #define SECTOR_SIZE 0x200 12 #include <mmc.h> 13 #include <linux/usb/composite.h> 14 15 #ifndef UMS_START_SECTOR 16 #define UMS_START_SECTOR 0 17 #endif 18 19 #ifndef UMS_NUM_SECTORS 20 #define UMS_NUM_SECTORS 0 21 #endif 22 23 /* Wait at maximum 60 seconds for cable connection */ 24 #define UMS_CABLE_READY_TIMEOUT 60 25 26 struct ums { 27 int (*read_sector)(struct ums *ums_dev, 28 ulong start, lbaint_t blkcnt, void *buf); 29 int (*write_sector)(struct ums *ums_dev, 30 ulong start, lbaint_t blkcnt, const void *buf); 31 unsigned int start_sector; 32 unsigned int num_sectors; 33 const char *name; 34 struct mmc *mmc; 35 }; 36 37 extern struct ums *ums; 38 39 int fsg_init(struct ums *); 40 void fsg_cleanup(void); 41 struct ums *ums_init(unsigned int); 42 int fsg_main_thread(void *); 43 44 #ifdef CONFIG_USB_GADGET_MASS_STORAGE 45 int fsg_add(struct usb_configuration *c); 46 #else 47 int fsg_add(struct usb_configuration *c) 48 { 49 return 0; 50 } 51 #endif 52 #endif /* __USB_MASS_STORAGE_H__ */ 53