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It is necessary to deter the host from sending subsequent DFU_GETSTATUS request in the case of e.g. writing the buffer to medium. Here the timeout is increased when we fill up the whole buffer. This delay allows eMMC memory to perform its internal operations. Otherwise we end up with HOST's error regarding GET_STATUS receive timeout. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
/*
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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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