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Diffstat (limited to 'examples/device/src/msc_device_romdisk.c')
| -rw-r--r-- | examples/device/src/msc_device_romdisk.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/examples/device/src/msc_device_romdisk.c b/examples/device/src/msc_device_romdisk.c new file mode 100644 index 000000000..536d22dc7 --- /dev/null +++ b/examples/device/src/msc_device_romdisk.c @@ -0,0 +1,119 @@ +/**************************************************************************/ +/*! + @file msc_device_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 "msc_device_app.h" + +#if TUSB_CFG_DEVICE_MSC && defined (MSCD_APP_ROMDISK) + +//--------------------------------------------------------------------+ +// INCLUDE +//--------------------------------------------------------------------+ + +//--------------------------------------------------------------------+ +// MACRO CONSTANT TYPEDEF +//--------------------------------------------------------------------+ + +//--------------------------------------------------------------------+ +// INTERNAL OBJECT & FUNCTION DECLARATION +//--------------------------------------------------------------------+ +const uint8_t msc_device_app_rommdisk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] = +{ + //------------- Boot Sector -------------// + // byte_per_sector = DISK_BLOCK_SIZE; fat12_sector_num_16 = DISK_BLOCK_NUM; + // sector_per_cluster = 1; reserved_sectors = 1; + // fat_num = 1; fat12_root_entry_num = 16; + // sector_per_fat = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0; + // drive_number = 0x80; media_type = 0xf8; extended_boot_signature = 0x29; + // filesystem_type = "FAT12 "; volume_serial_number = 0x1234; volume_label = "tinyusb msc"; + [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 -------------// + [1] = + { + 0xF8, 0xFF, 0xFF, 0xFF, 0x0F // first 2 entries must be F8FF, third entry is cluster end of readme file + }, + + //------------- 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 +}; + +TUSB_CFG_ATTR_USBRAM +static uint8_t sector_buffer[DISK_BLOCK_SIZE]; + +//--------------------------------------------------------------------+ +// IMPLEMENTATION +//--------------------------------------------------------------------+ +uint16_t tusbd_msc_read10_cb (uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count) +{ + memcpy(sector_buffer, msc_device_app_rommdisk[lba], DISK_BLOCK_SIZE); + (*pp_buffer) = sector_buffer; + + return 1; +} + +// Stall write10 by return 0, as this is readonly disk +uint16_t tusbd_msc_write10_cb(uint8_t coreid, uint8_t lun, void** pp_buffer, uint32_t lba, uint16_t block_count) +{ + (*pp_buffer) = NULL; + + mscd_sense_data.sense_key = SCSI_SENSEKEY_DATA_PROTECT; // let host know that this is read-only disk + + return 0; +} + +#endif + |