mirror of
https://github.com/hathach/tinyusb.git
synced 2025-01-17 05:32:55 +08:00
119 lines
4.8 KiB
C
119 lines
4.8 KiB
C
|
/**************************************************************************/
|
||
|
|
/*!
|
||
|
|
@file mscd_app_romdisk.c
|
||
|
|
@author hathach (tinyusb.org)
|
||
|
|
|
||
|
|
@section LICENSE
|
||
|
|
|
||
|
|
Software License Agreement (BSD License)
|
||
|
|
|
||
|
|
Copyright (c) 2013, hathach (tinyusb.org)
|
||
|
|
All rights reserved.
|
||
|
|
|
||
|
|
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. Neither the name of the copyright holders nor the
|
||
|
|
names of its contributors may be used to endorse or promote products
|
||
|
|
derived from this software without specific prior written permission.
|
||
|
|
|
||
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
|
||
|
|
EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
|
||
|
|
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
||
|
|
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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.
|
||
|
|
|
||
|
|
This file is part of the tinyusb stack.
|
||
|
|
*/
|
||
|
|
/**************************************************************************/
|
||
|
|
|
||
|
|
#include "mscd_app.h"
|
||
|
|
|
||
|
|
#if TUSB_CFG_DEVICE_MSC && defined (MSCD_APP_ROMDISK)
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// INCLUDE
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// MACRO CONSTANT TYPEDEF
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
#define README_CONTENTS \
|
||
|
|
"This is tinyusb's MassStorage Class demo.\r\n\r\n\
|
||
|
|
If you find any bugs or get any questions, feel free to file an\r\n\
|
||
|
|
issue at github.com/hathach/tinyusb"
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// INTERNAL OBJECT & FUNCTION DECLARATION
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
const uint8_t mscd_app_rommdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
|
||
|
|
{
|
||
|
|
//------------- Boot Sector -------------//
|
||
|
|
[0] =
|
||
|
|
{
|
||
|
|
0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00,
|
||
|
|
0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 0x74, 0x69, 0x6E, 0x79, 0x75,
|
||
|
|
0x73, 0x62, 0x20, 0x6D, 0x73, 0x63, 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00,
|
||
|
|
[510] = 0x55, [511] = 0xAA // FAT magic code
|
||
|
|
},
|
||
|
|
|
||
|
|
//------------- FAT12 Table (first 2 entries are F8FF, third entry is cluster end of readme file-------------//
|
||
|
|
[1] =
|
||
|
|
{
|
||
|
|
0xF8, 0xFF, 0xFF, 0xFF, 0x0F
|
||
|
|
},
|
||
|
|
|
||
|
|
//------------- Root Directory -------------//
|
||
|
|
[2] =
|
||
|
|
{
|
||
|
|
// first entry is volume label
|
||
|
|
0x54, 0x49, 0x4E, 0x59, 0x55, 0x53, 0x42, 0x20, 0x4D, 0x53, 0x43, 0x08, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
|
||
|
|
// second entry is readme file
|
||
|
|
0x52, 0x45, 0x41, 0x44, 0x4D, 0x45, 0x20, 0x20, 0x54, 0x58, 0x54, 0x20, 0x00, 0xC6, 0x52, 0x6D,
|
||
|
|
0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00,
|
||
|
|
sizeof(README_CONTENTS)-1, 0x00, 0x00, 0x00 // readme's filesize
|
||
|
|
},
|
||
|
|
|
||
|
|
//------------- Readme Content -------------//
|
||
|
|
[3] = README_CONTENTS
|
||
|
|
};
|
||
|
|
|
||
|
|
ATTR_USB_MIN_ALIGNMENT
|
||
|
|
static uint8_t ramdisk_buffer[DISK_BLOCK_SIZE] TUSB_CFG_ATTR_USBRAM;
|
||
|
|
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
// IMPLEMENTATION
|
||
|
|
//--------------------------------------------------------------------+
|
||
|
|
uint16_t read10(uint8_t coreid, uint8_t lun, scsi_read10_t* p_read10, void** pp_buffer)
|
||
|
|
{
|
||
|
|
uint8_t block_count = __be2h_16(p_read10->block_count);
|
||
|
|
|
||
|
|
memcpy(ramdisk_buffer, mscd_app_rommdisk[ __be2le(p_read10->lba)], DISK_BLOCK_SIZE);
|
||
|
|
|
||
|
|
(*pp_buffer) = ramdisk_buffer;
|
||
|
|
|
||
|
|
return block_count*DISK_BLOCK_SIZE;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Stall write10 as this is readonly disk
|
||
|
|
uint16_t write10(uint8_t coreid, uint8_t lun, scsi_read10_t* p_read10, void** pp_buffer)
|
||
|
|
{
|
||
|
|
(*pp_buffer) = NULL;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|
||
|
|
|