/**************************************************************************** * include/nuttx/usb/storage.h * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ #ifndef __INCLUDE_NUTTX_USB_STORAGE_H #define __INCLUDE_NUTTX_USB_STORAGE_H /**************************************************************************** * Included Files ****************************************************************************/ /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Mass storage requests */ #define USBMSC_TYPE_SETUPIN (USB_DIR_IN|UT_CLASS|UT_INTERFACE) #define USBMSC_TYPE_SETUPOUT (USB_DIR_OUT|UT_CLASS|UT_INTERFACE) #define USBMSC_REQ_MSRESET (0xff) /* Reset mass storage device and interface */ #define USBMSC_REQ_GETMAXLUN (0xfe) /* Return number LUNs supported */ /* Mass storage subclass codes */ #define USBMSC_SUBCLASS_RBC (0x01) /* Reduced block commands (e.g., flash devices) */ #define USBMSC_SUBCLASS_SFF1 (0x02) /* SFF-8020i/MMC-2 (ATAPI) (e.g., C/DVD) */ #define USBMSC_SUBCLASS_QIC (0x03) /* QIC-157 (e.g., tape device) */ #define USBMSC_SUBCLASS_UFI (0x04) /* e.g. floppy device */ #define USBMSC_SUBCLASS_SFF2 (0x05) /* SFF-8070i (e.g. floppy disk) */ #define USBMSC_SUBCLASS_SCSI (0x06) /* SCSI transparent */ #define UMASS_ATTACH_PRENAME "/dev/sd" #define MASS_NAME 10 #define MAX_DEVICE 5 /* Mass storage transport protocols */ #define USBMSC_PROTO_CBI0 (0x00) /* CBI transport with command completion interrupt */ #define USBMSC_PROTO_CBI1 (0x01) /* CBI transport without command completion interrupt */ #define USBMSC_PROTO_BULKONLY (0x50) /* Bulk only transport */ /* Common Block Wrapper (CBW) */ #define USBMSC_CBW_SIZEOF (31) #define USBMSC_CBW_SIGNATURE (0x43425355) /* Little endian USBC */ #define USBMSC_CBWFLAG_IN (0x80) /* Bit 7=1: Direction = IN */ #define USBMSC_MAXCDBLEN (16) /* Max length of SCSI Command Data Block */ /* Command Status Wrapper (CSW) */ #define USBMSC_CSW_SIZEOF (13) #define USBMSC_CSW_SIGNATURE (0x53425355) /* Little endian 'USBS' */ #define USBMSC_CSWSTATUS_PASS (0) #define USBMSC_CSWSTATUS_FAIL (1) #define USBMSC_CSWSTATUS_PHASEERROR (2) /**************************************************************************** * Public Types ****************************************************************************/ /* Command Block Wrapper (CBW) */ struct usbmsc_cbw_s { uint8_t signature[4]; /* 'USBC' = 0x43425355 */ uint8_t tag[4]; /* Depends on command id */ uint8_t datlen[4]; /* Number of bytes that host expects to transfer */ uint8_t flags; /* Bit 7: Direction=IN (other obsolete or reserved) */ uint8_t lun; /* LUN (normally 0) */ uint8_t cdblen; /* len of cdb[] */ uint8_t cdb[USBMSC_MAXCDBLEN]; /* Command Data Block */ }; /* Command Status Wrapper (CSW) */ struct usbmsc_csw_s { uint8_t signature[4]; /* 'USBS' = 0x53425355 */ uint8_t tag[4]; /* Same tag as original command */ uint8_t residue[4]; /* Amount not transferred */ uint8_t status; /* Status of transfer */ }; /**************************************************************************** * Public Data ****************************************************************************/ /**************************************************************************** * Public Functions Definitions ****************************************************************************/ #endif /* __INCLUDE_NUTTX_USB_STORAGE_H */