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diff --git a/lib/chibios-contrib/demos/STM32/RT-STM32F407-DISCOVERY-TinyUSB-CDC-MSC/msc_disk.c b/lib/chibios-contrib/demos/STM32/RT-STM32F407-DISCOVERY-TinyUSB-CDC-MSC/msc_disk.c
new file mode 100644
index 000000000..70fd43b31
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+++ b/lib/chibios-contrib/demos/STM32/RT-STM32F407-DISCOVERY-TinyUSB-CDC-MSC/msc_disk.c
@@ -0,0 +1,248 @@
1/*
2 * The MIT License (MIT)
3 *
4 * Copyright (c) 2019 Ha Thach (tinyusb.org)
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 *
24 */
25
26#include "tusb.h"
27
28#if CFG_TUD_MSC
29
30// Some MCU doesn't have enough 8KB SRAM to store the whole disk
31// We will use Flash as read-only disk with board that has
32// CFG_EXAMPLE_MSC_READONLY defined
33
34#define README_CONTENTS \
35"This is tinyusb's MassStorage Class demo.\r\n\r\n\
36If you find any bugs or get any questions, feel free to file an\r\n\
37issue at github.com/hathach/tinyusb"
38
39enum
40{
41 DISK_BLOCK_NUM = 16, // 8KB is the smallest size that windows allow to mount
42 DISK_BLOCK_SIZE = 512
43};
44
45#ifdef CFG_EXAMPLE_MSC_READONLY
46const
47#endif
48uint8_t msc_disk[DISK_BLOCK_NUM][DISK_BLOCK_SIZE] =
49{
50 //------------- Block0: Boot Sector -------------//
51 // byte_per_sector = DISK_BLOCK_SIZE; fat12_sector_num_16 = DISK_BLOCK_NUM;
52 // sector_per_cluster = 1; reserved_sectors = 1;
53 // fat_num = 1; fat12_root_entry_num = 16;
54 // sector_per_fat = 1; sector_per_track = 1; head_num = 1; hidden_sectors = 0;
55 // drive_number = 0x80; media_type = 0xf8; extended_boot_signature = 0x29;
56 // filesystem_type = "FAT12 "; volume_serial_number = 0x1234; volume_label = "TinyUSB MSC";
57 // FAT magic code at offset 510-511
58 {
59 0xEB, 0x3C, 0x90, 0x4D, 0x53, 0x44, 0x4F, 0x53, 0x35, 0x2E, 0x30, 0x00, 0x02, 0x01, 0x01, 0x00,
60 0x01, 0x10, 0x00, 0x10, 0x00, 0xF8, 0x01, 0x00, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
61 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x29, 0x34, 0x12, 0x00, 0x00, 'T' , 'i' , 'n' , 'y' , 'U' ,
62 'S' , 'B' , ' ' , 'M' , 'S' , 'C' , 0x46, 0x41, 0x54, 0x31, 0x32, 0x20, 0x20, 0x20, 0x00, 0x00,
63
64 // Zero up to 2 last bytes of FAT magic code
65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
68 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
69 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
71 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
73
74 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
75 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
76 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
77 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
78 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
79 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
80 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
81 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
82
83 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
84 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
85 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
86 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
87 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
88 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
89 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
90 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
91
92 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
93 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
94 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
95 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xAA
96 },
97
98 //------------- Block1: FAT12 Table -------------//
99 {
100 0xF8, 0xFF, 0xFF, 0xFF, 0x0F // // first 2 entries must be F8FF, third entry is cluster end of readme file
101 },
102
103 //------------- Block2: Root Directory -------------//
104 {
105 // first entry is volume label
106 'T' , 'i' , 'n' , 'y' , 'U' , 'S' , 'B' , ' ' , 'M' , 'S' , 'C' , 0x08, 0x00, 0x00, 0x00, 0x00,
107 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4F, 0x6D, 0x65, 0x43, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
108 // second entry is readme file
109 'R' , 'E' , 'A' , 'D' , 'M' , 'E' , ' ' , ' ' , 'T' , 'X' , 'T' , 0x20, 0x00, 0xC6, 0x52, 0x6D,
110 0x65, 0x43, 0x65, 0x43, 0x00, 0x00, 0x88, 0x6D, 0x65, 0x43, 0x02, 0x00,
111 sizeof(README_CONTENTS)-1, 0x00, 0x00, 0x00 // readme's files size (4 Bytes)
112 },
113
114 //------------- Block3: Readme Content -------------//
115 README_CONTENTS
116};
117
118// Invoked when received SCSI_CMD_INQUIRY
119// Application fill vendor id, product id and revision with string up to 8, 16, 4 characters respectively
120void tud_msc_inquiry_cb(uint8_t lun, uint8_t vendor_id[8], uint8_t product_id[16], uint8_t product_rev[4])
121{
122 (void) lun;
123
124 const char vid[] = "TinyUSB";
125 const char pid[] = "Mass Storage";
126 const char rev[] = "1.0";
127
128 memcpy(vendor_id , vid, strlen(vid));
129 memcpy(product_id , pid, strlen(pid));
130 memcpy(product_rev, rev, strlen(rev));
131}
132
133// Invoked when received Test Unit Ready command.
134// return true allowing host to read/write this LUN e.g SD card inserted
135bool tud_msc_test_unit_ready_cb(uint8_t lun)
136{
137 (void) lun;
138
139 return true; // RAM disk is always ready
140}
141
142// Invoked when received SCSI_CMD_READ_CAPACITY_10 and SCSI_CMD_READ_FORMAT_CAPACITY to determine the disk size
143// Application update block count and block size
144void tud_msc_capacity_cb(uint8_t lun, uint32_t* block_count, uint16_t* block_size)
145{
146 (void) lun;
147
148 *block_count = DISK_BLOCK_NUM;
149 *block_size = DISK_BLOCK_SIZE;
150}
151
152// Invoked when received Start Stop Unit command
153// - Start = 0 : stopped power mode, if load_eject = 1 : unload disk storage
154// - Start = 1 : active mode, if load_eject = 1 : load disk storage
155bool tud_msc_start_stop_cb(uint8_t lun, uint8_t power_condition, bool start, bool load_eject)
156{
157 (void) lun;
158 (void) power_condition;
159
160 if ( load_eject )
161 {
162 if (start)
163 {
164 // load disk storage
165 }else
166 {
167 // unload disk storage
168 }
169 }
170
171 return true;
172}
173
174// Callback invoked when received READ10 command.
175// Copy disk's data to buffer (up to bufsize) and return number of copied bytes.
176int32_t tud_msc_read10_cb(uint8_t lun, uint32_t lba, uint32_t offset, void* buffer, uint32_t bufsize)
177{
178 (void) lun;
179
180 uint8_t const* addr = msc_disk[lba] + offset;
181 memcpy(buffer, addr, bufsize);
182
183 return bufsize;
184}
185
186// Callback invoked when received WRITE10 command.
187// Process data in buffer to disk's storage and return number of written bytes
188int32_t tud_msc_write10_cb(uint8_t lun, uint32_t lba, uint32_t offset, uint8_t* buffer, uint32_t bufsize)
189{
190 (void) lun;
191
192#ifndef CFG_EXAMPLE_MSC_READONLY
193 uint8_t* addr = msc_disk[lba] + offset;
194 memcpy(addr, buffer, bufsize);
195#else
196 (void) lba; (void) offset; (void) buffer;
197#endif
198
199 return bufsize;
200}
201
202// Callback invoked when received an SCSI command not in built-in list below
203// - READ_CAPACITY10, READ_FORMAT_CAPACITY, INQUIRY, MODE_SENSE6, REQUEST_SENSE
204// - READ10 and WRITE10 has their own callbacks
205int32_t tud_msc_scsi_cb (uint8_t lun, uint8_t const scsi_cmd[16], void* buffer, uint16_t bufsize)
206{
207 // read10 & write10 has their own callback and MUST not be handled here
208
209 void const* response = NULL;
210 uint16_t resplen = 0;
211
212 // most scsi handled is input
213 bool in_xfer = true;
214
215 switch (scsi_cmd[0])
216 {
217 case SCSI_CMD_PREVENT_ALLOW_MEDIUM_REMOVAL:
218 // Host is about to read/write etc ... better not to disconnect disk
219 resplen = 0;
220 break;
221
222 default:
223 // Set Sense = Invalid Command Operation
224 tud_msc_set_sense(lun, SCSI_SENSE_ILLEGAL_REQUEST, 0x20, 0x00);
225
226 // negative means error -> tinyusb could stall and/or response with failed status
227 resplen = -1;
228 break;
229 }
230
231 // return resplen must not larger than bufsize
232 if ( resplen > bufsize ) resplen = bufsize;
233
234 if ( response && (resplen > 0) )
235 {
236 if(in_xfer)
237 {
238 memcpy(buffer, response, resplen);
239 }else
240 {
241 // SCSI output
242 }
243 }
244
245 return resplen;
246}
247
248#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-08-30 20:18:04 +0100