diff options
Diffstat (limited to 'drivers/usb/gadget/storage_common.h')
-rw-r--r-- | drivers/usb/gadget/storage_common.h | 245 |
1 files changed, 0 insertions, 245 deletions
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h deleted file mode 100644 index ce07a7dac7..0000000000 --- a/drivers/usb/gadget/storage_common.h +++ /dev/null @@ -1,245 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ - -#ifndef USB_STORAGE_COMMON_H -#define USB_STORAGE_COMMON_H - -#include <driver.h> -#include <usb/storage.h> -#include <asm/unaligned.h> -#include <usb/mass_storage.h> - -#ifndef DEBUG -#undef VERBOSE_DEBUG -#undef DUMP_MSGS -#endif /* !DEBUG */ - -#define VLDBG(lun, fmt, args...) dev_vdbg(&(lun)->dev, fmt, ## args) -#define LDBG(lun, fmt, args...) dev_dbg (&(lun)->dev, fmt, ## args) -#define LERROR(lun, fmt, args...) dev_err (&(lun)->dev, fmt, ## args) -#define LWARN(lun, fmt, args...) dev_warn(&(lun)->dev, fmt, ## args) -#define LINFO(lun, fmt, args...) dev_info(&(lun)->dev, fmt, ## args) - -/* - * Keep those macros in sync with those in - * include/linux/usb/composite.h or else GCC will complain. If they - * are identical (the same names of arguments, white spaces in the - * same places) GCC will allow redefinition otherwise (even if some - * white space is removed or added) warning will be issued. - * - * Those macros are needed here because File Storage Gadget does not - * include the composite.h header. For composite gadgets those macros - * are redundant since composite.h is included any way. - * - * One could check whether those macros are already defined (which - * would indicate composite.h had been included) or not (which would - * indicate we were in FSG) but this is not done because a warning is - * desired if definitions here differ from the ones in composite.h. - * - * We want the definitions to match and be the same in File Storage - * Gadget as well as Mass Storage Function (and so composite gadgets - * using MSF). If someone changes them in composite.h it will produce - * a warning in this file when building MSF. - */ - -#define DBG(d, fmt, args...) \ - dev_dbg(&(d)->gadget->dev , fmt , ## args) -#define VDBG(d, fmt, args...) \ - dev_vdbg(&(d)->gadget->dev , fmt , ## args) -#define ERROR(d, fmt, args...) \ - dev_err(&(d)->gadget->dev , fmt , ## args) -#define WARNING(d, fmt, args...) \ - dev_warn(&(d)->gadget->dev , fmt , ## args) -#define INFO(d, fmt, args...) \ - dev_info(&(d)->gadget->dev , fmt , ## args) - -#ifdef DUMP_MSGS - -/* dump_msg(fsg, const char * label, const u8 * buf, unsigned length); */ -# define dump_msg(fsg, label, buf, length) do { \ - if (length < 512) { \ - DBG(fsg, "%s, length %u:\n", label, length); \ - print_hex_dump("", DUMP_PREFIX_OFFSET, \ - 16, 1, buf, length, 0); \ - } \ -} while (0) - -# define dump_cdb(fsg) do { } while (0) - -#else - -# define dump_msg(fsg, /* const char * */ label, \ - /* const u8 * */ buf, /* unsigned */ length) do { } while (0) - -# ifdef VERBOSE_DEBUG - -# define dump_cdb(fsg) \ - print_hex_dump("SCSI CDB: ", DUMP_PREFIX_NONE, \ - 16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0) \ - -# else - -# define dump_cdb(fsg) do { } while (0) - -# endif /* VERBOSE_DEBUG */ - -#endif /* DUMP_MSGS */ - -/* - * Thanks to NetChip Technologies for donating this product ID. - * - * DO NOT REUSE THESE IDs with any other driver!! Ever!! - * Instead: allocate your own, using normal USB-IF procedures. - */ - -#define FSG_VENDOR_ID 0x0525 /* NetChip */ -#define FSG_PRODUCT_ID 0xa4a5 /* Linux-USB File-backed Storage Gadget */ - -/* Length of a SCSI Command Data Block */ -#define MAX_COMMAND_SIZE 16 - -/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */ -#define SS_NO_SENSE 0 -#define SS_COMMUNICATION_FAILURE 0x040800 -#define SS_INVALID_COMMAND 0x052000 -#define SS_INVALID_FIELD_IN_CDB 0x052400 -#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE 0x052100 -#define SS_LOGICAL_UNIT_NOT_SUPPORTED 0x052500 -#define SS_MEDIUM_NOT_PRESENT 0x023a00 -#define SS_MEDIUM_REMOVAL_PREVENTED 0x055302 -#define SS_NOT_READY_TO_READY_TRANSITION 0x062800 -#define SS_RESET_OCCURRED 0x062900 -#define SS_SAVING_PARAMETERS_NOT_SUPPORTED 0x053900 -#define SS_UNRECOVERED_READ_ERROR 0x031100 -#define SS_WRITE_ERROR 0x030c02 -#define SS_WRITE_PROTECTED 0x072700 - -#define SK(x) ((u8) ((x) >> 16)) /* Sense Key byte, etc. */ -#define ASC(x) ((u8) ((x) >> 8)) -#define ASCQ(x) ((u8) (x)) - -/*-------------------------------------------------------------------------*/ - -struct fsg_lun { - loff_t file_length; - loff_t num_sectors; - - unsigned int initially_ro:1; - unsigned int ro:1; - unsigned int removable:1; - unsigned int cdrom:1; - unsigned int prevent_medium_removal:1; - unsigned int registered:1; - unsigned int info_valid:1; - unsigned int nofua:1; - - u32 sense_data; - u32 sense_data_info; - u32 unit_attention_data; - - struct device_d dev; -}; - -#define fsg_lun_is_open(curlun) ((curlun)->filp != NULL) - -/* Big enough to hold our biggest descriptor */ -#define EP0_BUFSIZE 256 -#define DELAYED_STATUS (EP0_BUFSIZE + 999) /* An impossibly large value */ - -/* Number of buffers we will use. 2 is enough for double-buffering */ -#define FSG_NUM_BUFFERS 2 - -/* Default size of buffer length. */ -#define FSG_BUFLEN ((u32)131072) - -/* Maximal number of LUNs supported in mass storage function */ -#define FSG_MAX_LUNS 8 - -enum fsg_buffer_state { - BUF_STATE_EMPTY = 0, - BUF_STATE_FULL, - BUF_STATE_BUSY -}; - -/* - * When FSG_BUFFHD_STATIC_BUFFER is defined when this file is included - * the fsg_buffhd structure's buf field will be an array of FSG_BUFLEN - * characters rather then a pointer to void. - */ - -struct fsg_buffhd { - void *buf; - enum fsg_buffer_state state; - struct fsg_buffhd *next; - - /* - * The NetChip 2280 is faster, and handles some protocol faults - * better, if we don't submit any short bulk-out read requests. - * So we will record the intended request length here. - */ - unsigned int bulk_out_intended_length; - - struct usb_request *inreq; - int inreq_busy; - struct usb_request *outreq; - int outreq_busy; -}; - -enum fsg_state { - /* This one isn't used anywhere */ - FSG_STATE_COMMAND_PHASE = -10, - FSG_STATE_DATA_PHASE, - FSG_STATE_STATUS_PHASE, - - FSG_STATE_IDLE = 0, - FSG_STATE_ABORT_BULK_OUT, - FSG_STATE_RESET, - FSG_STATE_INTERFACE_CHANGE, - FSG_STATE_CONFIG_CHANGE, - FSG_STATE_DISCONNECT, - FSG_STATE_EXIT, - FSG_STATE_TERMINATED -}; - -enum data_direction { - DATA_DIR_UNKNOWN = 0, - DATA_DIR_FROM_HOST, - DATA_DIR_TO_HOST, - DATA_DIR_NONE -}; - -/*-------------------------------------------------------------------------*/ - -static inline u32 get_unaligned_be24(u8 *buf) -{ - return 0xffffff & (u32) get_unaligned_be32(buf - 1); -} - -/*-------------------------------------------------------------------------*/ - -enum { - FSG_STRING_INTERFACE -}; - -/*-------------------------------------------------------------------------*/ - -extern struct usb_interface_descriptor fsg_intf_desc; - -extern struct usb_endpoint_descriptor fsg_fs_bulk_in_desc; -extern struct usb_endpoint_descriptor fsg_fs_bulk_out_desc; -extern struct usb_descriptor_header *fsg_fs_function[]; - -extern struct usb_endpoint_descriptor fsg_hs_bulk_in_desc; -extern struct usb_endpoint_descriptor fsg_hs_bulk_out_desc; -extern struct usb_descriptor_header *fsg_hs_function[]; - -int fsg_lun_open(struct fsg_lun *curlun, unsigned int num_sectors, - const char *filename); -void fsg_lun_close(struct fsg_lun *curlun); - -struct usb_endpoint_descriptor * -fsg_ep_desc(struct usb_gadget *g, struct usb_endpoint_descriptor *fs, - struct usb_endpoint_descriptor *hs); -int fsg_lun_fsync_sub(struct fsg_lun *curlun); -void store_cdrom_address(u8 *dest, int msf, u32 addr); - -#endif /* USB_STORAGE_COMMON_H */ |