ccfa51835e
It is very similar to how e200tool from MrH works but uses the framework of hwstub which is makes it completely trivial since we already have the USB driver written. Change-Id: I61cdc245d3f828c2682bcd6ecfed5a1cc0094139
130 lines
4.2 KiB
C
130 lines
4.2 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2012 by Amaury Pouly
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#ifndef __HWSTUB_PROTOCOL__
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#define __HWSTUB_PROTOCOL__
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#define HWSTUB_CLASS 0xff
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#define HWSTUB_SUBCLASS 0xac
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#define HWSTUB_PROTOCOL 0x1d
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#define HWSTUB_VERSION_MAJOR 3
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#define HWSTUB_VERSION_MINOR 0
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#define HWSTUB_VERSION_REV 0
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#define HWSTUB_USB_VID 0xfee1
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#define HWSTUB_USB_PID 0xdead
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/**
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* Control commands
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*
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* These commands are sent to the device, using the standard bRequest field
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* of the SETUP packet. This is to take advantage of both wIndex and wValue
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* although it would have been more correct to send them to the interface.
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*/
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/* list of commands */
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#define HWSTUB_GET_LOG 0 /* optional */
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#define HWSTUB_RW_MEM 1 /* optional */
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#define HWSTUB_CALL 2 /* optional */
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#define HWSTUB_JUMP 3 /* optional */
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/**
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* Descriptors can be retrieve using configuration descriptor or individually
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* using the standard GetDescriptor request on the interface.
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*/
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/* list of possible information */
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#define HWSTUB_DT_VERSION 0x41 /* mandatory */
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#define HWSTUB_DT_LAYOUT 0x42 /* mandatory */
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#define HWSTUB_DT_TARGET 0x43 /* mandatory */
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#define HWSTUB_DT_STMP 0x44 /* optional */
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struct hwstub_version_desc_t
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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/* full version information */
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uint8_t bMajor;
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uint8_t bMinor;
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uint8_t bRevision;
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} __attribute__((packed));
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struct hwstub_layout_desc_t
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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/* describe the range of memory used by the running code */
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uint32_t dCodeStart;
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uint32_t dCodeSize;
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/* describe the range of memory used by the stack */
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uint32_t dStackStart;
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uint32_t dStackSize;
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/* describe the range of memory available as a buffer */
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uint32_t dBufferStart;
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uint32_t dBufferSize;
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} __attribute__((packed));
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struct hwstub_stmp_desc_t
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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/* Chip ID and revision */
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uint16_t wChipID; /* 0x3780 for STMP3780 for example */
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uint8_t bRevision; /* 0=TA1 on STMP3780 for example */
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uint8_t bPackage; /* 0=169BGA for example */
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} __attribute__((packed));
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#define HWSTUB_TARGET_UNK ('U' | 'N' << 8 | 'K' << 16 | ' ' << 24)
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#define HWSTUB_TARGET_STMP ('S' | 'T' << 8 | 'M' << 16 | 'P' << 24)
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#define HWSTUB_TARGET_RK27 ('R' | 'K' << 8 | '2' << 16 | '7' << 24)
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#define HWSTUB_TARGET_PP ('P' | 'P' << 8 | ' ' << 16 | ' ' << 24)
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struct hwstub_target_desc_t
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{
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uint8_t bLength;
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uint8_t bDescriptorType;
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/* Target ID and name */
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uint32_t dID;
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char bName[58];
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} __attribute__((packed));
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/**
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* HWSTUB_GET_LOG:
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* The log is returned as part of the control transfer.
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*/
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/**
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* HWSTUB_RW_MEM:
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* The 32-bit address is split into two parts.
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* The low 16-bit are stored in wValue and the upper
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* 16-bit are stored in wIndex. Depending on the transfer direction,
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* the transfer is either a read or a write.
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* The read/write on the device are guaranteed to be 16-bit/32-bit when
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* possible, making it suitable to read/write registers. */
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/**
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* HWSTUB_{CALL,JUMP}:
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* The 32-bit address is split into two parts.
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* The low 16-bit are stored in wValue and the upper
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* 16-bit are stored in wIndex. Depending on the transfer direction,
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* the transfer is either a read or a write. */
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#endif /* __HWSTUB_PROTOCOL__ */
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