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/*
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* f_dfu.h -- Device Firmware Update gadget
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*
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* Copyright (C) 2011-2012 Samsung Electronics
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* author: Andrzej Pietrasiewicz <andrzej.p@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 __F_DFU_H_
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#define __F_DFU_H_
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#include <linux/compiler.h>
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#include <linux/usb/composite.h>
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#define DFU_CONFIG_VAL 1
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#define DFU_DT_FUNC 0x21
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#define DFU_BIT_WILL_DETACH (0x1 << 3)
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#define DFU_BIT_MANIFESTATION_TOLERANT (0x1 << 2)
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#define DFU_BIT_CAN_UPLOAD (0x1 << 1)
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#define DFU_BIT_CAN_DNLOAD 0x1
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/* big enough to hold our biggest descriptor */
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#define DFU_USB_BUFSIZ 4096
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#define USB_REQ_DFU_DETACH 0x00
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#define USB_REQ_DFU_DNLOAD 0x01
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#define USB_REQ_DFU_UPLOAD 0x02
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#define USB_REQ_DFU_GETSTATUS 0x03
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#define USB_REQ_DFU_CLRSTATUS 0x04
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#define USB_REQ_DFU_GETSTATE 0x05
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#define USB_REQ_DFU_ABORT 0x06
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#define DFU_STATUS_OK 0x00
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#define DFU_STATUS_errTARGET 0x01
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#define DFU_STATUS_errFILE 0x02
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#define DFU_STATUS_errWRITE 0x03
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#define DFU_STATUS_errERASE 0x04
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#define DFU_STATUS_errCHECK_ERASED 0x05
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#define DFU_STATUS_errPROG 0x06
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#define DFU_STATUS_errVERIFY 0x07
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#define DFU_STATUS_errADDRESS 0x08
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#define DFU_STATUS_errNOTDONE 0x09
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#define DFU_STATUS_errFIRMWARE 0x0a
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#define DFU_STATUS_errVENDOR 0x0b
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#define DFU_STATUS_errUSBR 0x0c
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#define DFU_STATUS_errPOR 0x0d
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#define DFU_STATUS_errUNKNOWN 0x0e
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#define DFU_STATUS_errSTALLEDPKT 0x0f
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#define RET_STALL -1
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#define RET_ZLP 0
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#define RET_STAT_LEN 6
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enum dfu_state {
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DFU_STATE_appIDLE = 0,
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DFU_STATE_appDETACH = 1,
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DFU_STATE_dfuIDLE = 2,
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DFU_STATE_dfuDNLOAD_SYNC = 3,
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DFU_STATE_dfuDNBUSY = 4,
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DFU_STATE_dfuDNLOAD_IDLE = 5,
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DFU_STATE_dfuMANIFEST_SYNC = 6,
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DFU_STATE_dfuMANIFEST = 7,
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DFU_STATE_dfuMANIFEST_WAIT_RST = 8,
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DFU_STATE_dfuUPLOAD_IDLE = 9,
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DFU_STATE_dfuERROR = 10,
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};
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struct dfu_status {
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__u8 bStatus;
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__u8 bwPollTimeout[3];
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__u8 bState;
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__u8 iString;
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} __packed;
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struct dfu_function_descriptor {
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__u8 bLength;
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__u8 bDescriptorType;
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__u8 bmAttributes;
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__le16 wDetachTimeOut;
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__le16 wTransferSize;
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__le16 bcdDFUVersion;
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} __packed;
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#define DFU_POLL_TIMEOUT_MASK (0xFFFFFFUL)
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#endif /* __F_DFU_H_ */
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