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Diffstat (limited to 'Marlin/src/HAL/DUE/usb/usb_protocol_msc.h')
| -rw-r--r-- | Marlin/src/HAL/DUE/usb/usb_protocol_msc.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/Marlin/src/HAL/DUE/usb/usb_protocol_msc.h b/Marlin/src/HAL/DUE/usb/usb_protocol_msc.h new file mode 100644 index 0000000..0fef308 --- /dev/null +++ b/Marlin/src/HAL/DUE/usb/usb_protocol_msc.h @@ -0,0 +1,147 @@ +/** + * \file + * + * \brief USB Mass Storage Class (MSC) protocol definitions. + * + * Copyright (c) 2009-2015 Atmel Corporation. All rights reserved. + * + * \asf_license_start + * + * \page License + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * 3. The name of Atmel may not be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * 4. This software may only be redistributed and used in connection with an + * Atmel microcontroller product. + * + * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE + * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR + * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + * \asf_license_stop + * + */ +/* + * Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a> + */ + +#ifndef _USB_PROTOCOL_MSC_H_ +#define _USB_PROTOCOL_MSC_H_ + + +/** + * \ingroup usb_protocol_group + * \defgroup usb_msc_protocol USB Mass Storage Class (MSC) protocol definitions + * + * @{ + */ + +/** + * \name Possible Class value + */ +//@{ +#define MSC_CLASS 0x08 +//@} + +/** + * \name Possible SubClass value + * \note In practise, most devices should use + * #MSC_SUBCLASS_TRANSPARENT and specify the actual command set in + * the standard INQUIRY data block, even if the MSC spec indicates + * otherwise. In particular, RBC is not supported by certain major + * operating systems like Windows XP. + */ +//@{ +#define MSC_SUBCLASS_RBC 0x01 //!< Reduced Block Commands +#define MSC_SUBCLASS_ATAPI 0x02 //!< CD/DVD devices +#define MSC_SUBCLASS_QIC_157 0x03 //!< Tape devices +#define MSC_SUBCLASS_UFI 0x04 //!< Floppy disk drives +#define MSC_SUBCLASS_SFF_8070I 0x05 //!< Floppy disk drives +#define MSC_SUBCLASS_TRANSPARENT 0x06 //!< Determined by INQUIRY +//@} + +/** + * \name Possible protocol value + * \note Only the BULK protocol should be used in new designs. + */ +//@{ +#define MSC_PROTOCOL_CBI 0x00 //!< Command/Bulk/Interrupt +#define MSC_PROTOCOL_CBI_ALT 0x01 //!< W/o command completion +#define MSC_PROTOCOL_BULK 0x50 //!< Bulk-only +//@} + + +/** + * \brief MSC USB requests (bRequest) + */ +enum usb_reqid_msc { + USB_REQ_MSC_BULK_RESET = 0xFF, //!< Mass Storage Reset + USB_REQ_MSC_GET_MAX_LUN = 0xFE //!< Get Max LUN +}; + + +COMPILER_PACK_SET(1) + +/** + * \name A Command Block Wrapper (CBW). + */ +//@{ +struct usb_msc_cbw { + le32_t dCBWSignature; //!< Must contain 'USBC' + le32_t dCBWTag; //!< Unique command ID + le32_t dCBWDataTransferLength; //!< Number of bytes to transfer + uint8_t bmCBWFlags; //!< Direction in bit 7 + uint8_t bCBWLUN; //!< Logical Unit Number + uint8_t bCBWCBLength; //!< Number of valid CDB bytes + uint8_t CDB[16]; //!< SCSI Command Descriptor Block +}; + +#define USB_CBW_SIGNATURE 0x55534243 //!< dCBWSignature value +#define USB_CBW_DIRECTION_IN (1<<7) //!< Data from device to host +#define USB_CBW_DIRECTION_OUT (0<<7) //!< Data from host to device +#define USB_CBW_LUN_MASK 0x0F //!< Valid bits in bCBWLUN +#define USB_CBW_LEN_MASK 0x1F //!< Valid bits in bCBWCBLength +//@} + + +/** + * \name A Command Status Wrapper (CSW). + */ +//@{ +struct usb_msc_csw { + le32_t dCSWSignature; //!< Must contain 'USBS' + le32_t dCSWTag; //!< Same as dCBWTag + le32_t dCSWDataResidue; //!< Number of bytes not transfered + uint8_t bCSWStatus; //!< Status code +}; + +#define USB_CSW_SIGNATURE 0x55534253 //!< dCSWSignature value +#define USB_CSW_STATUS_PASS 0x00 //!< Command Passed +#define USB_CSW_STATUS_FAIL 0x01 //!< Command Failed +#define USB_CSW_STATUS_PE 0x02 //!< Phase Error +//@} + +COMPILER_PACK_RESET() + +//@} + +#endif // _USB_PROTOCOL_MSC_H_ |