Suga koubou
USB CDC (serial) and USB MSC (strage) Composite Device. http://mbed.org/users/okini3939/notebook/USB_Device/
Dependencies: ChaNFSSD mbed ChaNFS
USBCDCMSC/USBCDCMSC.cpp@1:bb08a84162b7, 2011-12-23 (annotated)
- Committer:
- okini3939
- Date:
- Fri Dec 23 15:39:13 2011 +0000
- Revision:
- 1:bb08a84162b7
- Child:
- 2:5db90410bb90
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| okini3939 | 1:bb08a84162b7 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
| okini3939 | 1:bb08a84162b7 | 2 | * |
| okini3939 | 1:bb08a84162b7 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
| okini3939 | 1:bb08a84162b7 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
| okini3939 | 1:bb08a84162b7 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
| okini3939 | 1:bb08a84162b7 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
| okini3939 | 1:bb08a84162b7 | 7 | * Software is furnished to do so, subject to the following conditions: |
| okini3939 | 1:bb08a84162b7 | 8 | * |
| okini3939 | 1:bb08a84162b7 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
| okini3939 | 1:bb08a84162b7 | 10 | * substantial portions of the Software. |
| okini3939 | 1:bb08a84162b7 | 11 | * |
| okini3939 | 1:bb08a84162b7 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
| okini3939 | 1:bb08a84162b7 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| okini3939 | 1:bb08a84162b7 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| okini3939 | 1:bb08a84162b7 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| okini3939 | 1:bb08a84162b7 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| okini3939 | 1:bb08a84162b7 | 17 | */ |
| okini3939 | 1:bb08a84162b7 | 18 | |
| okini3939 | 1:bb08a84162b7 | 19 | #include "stdint.h" |
| okini3939 | 1:bb08a84162b7 | 20 | #include "USBCDCMSC.h" |
| okini3939 | 1:bb08a84162b7 | 21 | #include "USBBusInterface.h" |
| okini3939 | 1:bb08a84162b7 | 22 | |
| okini3939 | 1:bb08a84162b7 | 23 | static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08}; |
| okini3939 | 1:bb08a84162b7 | 24 | |
| okini3939 | 1:bb08a84162b7 | 25 | #define DEFAULT_CONFIGURATION (1) |
| okini3939 | 1:bb08a84162b7 | 26 | |
| okini3939 | 1:bb08a84162b7 | 27 | #define CDC_SET_LINE_CODING 0x20 |
| okini3939 | 1:bb08a84162b7 | 28 | #define CDC_GET_LINE_CODING 0x21 |
| okini3939 | 1:bb08a84162b7 | 29 | #define CDC_SET_CONTROL_LINE_STATE 0x22 |
| okini3939 | 1:bb08a84162b7 | 30 | |
| okini3939 | 1:bb08a84162b7 | 31 | #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK |
| okini3939 | 1:bb08a84162b7 | 32 | |
| okini3939 | 1:bb08a84162b7 | 33 | |
| okini3939 | 1:bb08a84162b7 | 34 | |
| okini3939 | 1:bb08a84162b7 | 35 | #define DISK_OK 0x00 |
| okini3939 | 1:bb08a84162b7 | 36 | #define NO_INIT 0x01 |
| okini3939 | 1:bb08a84162b7 | 37 | #define NO_DISK 0x02 |
| okini3939 | 1:bb08a84162b7 | 38 | #define WRITE_PROTECT 0x04 |
| okini3939 | 1:bb08a84162b7 | 39 | |
| okini3939 | 1:bb08a84162b7 | 40 | #define CBW_Signature 0x43425355 |
| okini3939 | 1:bb08a84162b7 | 41 | #define CSW_Signature 0x53425355 |
| okini3939 | 1:bb08a84162b7 | 42 | |
| okini3939 | 1:bb08a84162b7 | 43 | // SCSI Commands |
| okini3939 | 1:bb08a84162b7 | 44 | #define TEST_UNIT_READY 0x00 |
| okini3939 | 1:bb08a84162b7 | 45 | #define REQUEST_SENSE 0x03 |
| okini3939 | 1:bb08a84162b7 | 46 | #define FORMAT_UNIT 0x04 |
| okini3939 | 1:bb08a84162b7 | 47 | #define INQUIRY 0x12 |
| okini3939 | 1:bb08a84162b7 | 48 | #define MODE_SELECT6 0x15 |
| okini3939 | 1:bb08a84162b7 | 49 | #define MODE_SENSE6 0x1A |
| okini3939 | 1:bb08a84162b7 | 50 | #define START_STOP_UNIT 0x1B |
| okini3939 | 1:bb08a84162b7 | 51 | #define MEDIA_REMOVAL 0x1E |
| okini3939 | 1:bb08a84162b7 | 52 | #define READ_FORMAT_CAPACITIES 0x23 |
| okini3939 | 1:bb08a84162b7 | 53 | #define READ_CAPACITY 0x25 |
| okini3939 | 1:bb08a84162b7 | 54 | #define READ10 0x28 |
| okini3939 | 1:bb08a84162b7 | 55 | #define WRITE10 0x2A |
| okini3939 | 1:bb08a84162b7 | 56 | #define VERIFY10 0x2F |
| okini3939 | 1:bb08a84162b7 | 57 | #define READ12 0xA8 |
| okini3939 | 1:bb08a84162b7 | 58 | #define WRITE12 0xAA |
| okini3939 | 1:bb08a84162b7 | 59 | #define MODE_SELECT10 0x55 |
| okini3939 | 1:bb08a84162b7 | 60 | #define MODE_SENSE10 0x5A |
| okini3939 | 1:bb08a84162b7 | 61 | |
| okini3939 | 1:bb08a84162b7 | 62 | // MSC class specific requests |
| okini3939 | 1:bb08a84162b7 | 63 | #define MSC_REQUEST_RESET 0xFF |
| okini3939 | 1:bb08a84162b7 | 64 | #define MSC_REQUEST_GET_MAX_LUN 0xFE |
| okini3939 | 1:bb08a84162b7 | 65 | |
| okini3939 | 1:bb08a84162b7 | 66 | #define DEFAULT_CONFIGURATION (1) |
| okini3939 | 1:bb08a84162b7 | 67 | |
| okini3939 | 1:bb08a84162b7 | 68 | // max packet size |
| okini3939 | 1:bb08a84162b7 | 69 | #define MAX_PACKET MAX_PACKET_SIZE_EPBULK |
| okini3939 | 1:bb08a84162b7 | 70 | |
| okini3939 | 1:bb08a84162b7 | 71 | // CSW Status |
| okini3939 | 1:bb08a84162b7 | 72 | enum Status { |
| okini3939 | 1:bb08a84162b7 | 73 | CSW_PASSED, |
| okini3939 | 1:bb08a84162b7 | 74 | CSW_FAILED, |
| okini3939 | 1:bb08a84162b7 | 75 | CSW_ERROR, |
| okini3939 | 1:bb08a84162b7 | 76 | }; |
| okini3939 | 1:bb08a84162b7 | 77 | |
| okini3939 | 1:bb08a84162b7 | 78 | |
| okini3939 | 1:bb08a84162b7 | 79 | USBCDCMSC::USBCDCMSC(SDFileSystem *sd, uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release), cdcbuf(128), _sd(sd) { |
| okini3939 | 1:bb08a84162b7 | 80 | _status = NO_INIT; |
| okini3939 | 1:bb08a84162b7 | 81 | connect(); |
| okini3939 | 1:bb08a84162b7 | 82 | USBDevice::connect(); |
| okini3939 | 1:bb08a84162b7 | 83 | } |
| okini3939 | 1:bb08a84162b7 | 84 | |
| okini3939 | 1:bb08a84162b7 | 85 | bool USBCDCMSC::USBCallback_request(void) { |
| okini3939 | 1:bb08a84162b7 | 86 | /* Called in ISR context */ |
| okini3939 | 1:bb08a84162b7 | 87 | |
| okini3939 | 1:bb08a84162b7 | 88 | bool success = false; |
| okini3939 | 1:bb08a84162b7 | 89 | CONTROL_TRANSFER * transfer = getTransferPtr(); |
| okini3939 | 1:bb08a84162b7 | 90 | static uint8_t maxLUN[1] = {0}; |
| okini3939 | 1:bb08a84162b7 | 91 | |
| okini3939 | 1:bb08a84162b7 | 92 | /* Process class-specific requests */ |
| okini3939 | 1:bb08a84162b7 | 93 | |
| okini3939 | 1:bb08a84162b7 | 94 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { |
| okini3939 | 1:bb08a84162b7 | 95 | switch (transfer->setup.bRequest) { |
| okini3939 | 1:bb08a84162b7 | 96 | case CDC_GET_LINE_CODING: |
| okini3939 | 1:bb08a84162b7 | 97 | transfer->remaining = 7; |
| okini3939 | 1:bb08a84162b7 | 98 | transfer->ptr = cdc_line_coding; |
| okini3939 | 1:bb08a84162b7 | 99 | transfer->direction = DEVICE_TO_HOST; |
| okini3939 | 1:bb08a84162b7 | 100 | success = true; |
| okini3939 | 1:bb08a84162b7 | 101 | break; |
| okini3939 | 1:bb08a84162b7 | 102 | case CDC_SET_LINE_CODING: |
| okini3939 | 1:bb08a84162b7 | 103 | transfer->remaining = 7; |
| okini3939 | 1:bb08a84162b7 | 104 | success = true; |
| okini3939 | 1:bb08a84162b7 | 105 | break; |
| okini3939 | 1:bb08a84162b7 | 106 | case CDC_SET_CONTROL_LINE_STATE: |
| okini3939 | 1:bb08a84162b7 | 107 | success = true; |
| okini3939 | 1:bb08a84162b7 | 108 | break; |
| okini3939 | 1:bb08a84162b7 | 109 | case MSC_REQUEST_RESET: |
| okini3939 | 1:bb08a84162b7 | 110 | reset(); |
| okini3939 | 1:bb08a84162b7 | 111 | success = true; |
| okini3939 | 1:bb08a84162b7 | 112 | break; |
| okini3939 | 1:bb08a84162b7 | 113 | case MSC_REQUEST_GET_MAX_LUN: |
| okini3939 | 1:bb08a84162b7 | 114 | transfer->remaining = 1; |
| okini3939 | 1:bb08a84162b7 | 115 | transfer->ptr = maxLUN; |
| okini3939 | 1:bb08a84162b7 | 116 | transfer->direction = DEVICE_TO_HOST; |
| okini3939 | 1:bb08a84162b7 | 117 | success = true; |
| okini3939 | 1:bb08a84162b7 | 118 | break; |
| okini3939 | 1:bb08a84162b7 | 119 | default: |
| okini3939 | 1:bb08a84162b7 | 120 | break; |
| okini3939 | 1:bb08a84162b7 | 121 | } |
| okini3939 | 1:bb08a84162b7 | 122 | } |
| okini3939 | 1:bb08a84162b7 | 123 | |
| okini3939 | 1:bb08a84162b7 | 124 | return success; |
| okini3939 | 1:bb08a84162b7 | 125 | } |
| okini3939 | 1:bb08a84162b7 | 126 | |
| okini3939 | 1:bb08a84162b7 | 127 | |
| okini3939 | 1:bb08a84162b7 | 128 | // Called in ISR context |
| okini3939 | 1:bb08a84162b7 | 129 | // Set configuration. Return false if the |
| okini3939 | 1:bb08a84162b7 | 130 | // configuration is not supported. |
| okini3939 | 1:bb08a84162b7 | 131 | bool USBCDCMSC::USBCallback_setConfiguration(uint8_t configuration) { |
| okini3939 | 1:bb08a84162b7 | 132 | if (configuration != DEFAULT_CONFIGURATION) { |
| okini3939 | 1:bb08a84162b7 | 133 | return false; |
| okini3939 | 1:bb08a84162b7 | 134 | } |
| okini3939 | 1:bb08a84162b7 | 135 | |
| okini3939 | 1:bb08a84162b7 | 136 | // Configure endpoints > 0 |
| okini3939 | 1:bb08a84162b7 | 137 | addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT); |
| okini3939 | 1:bb08a84162b7 | 138 | addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 139 | addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 140 | |
| okini3939 | 1:bb08a84162b7 | 141 | // Configure endpoints > 0 |
| okini3939 | 1:bb08a84162b7 | 142 | addEndpoint(MSDBULK_IN, MAX_PACKET_SIZE_MSDBULK); |
| okini3939 | 1:bb08a84162b7 | 143 | addEndpoint(MSDBULK_OUT, MAX_PACKET_SIZE_MSDBULK); |
| okini3939 | 1:bb08a84162b7 | 144 | |
| okini3939 | 1:bb08a84162b7 | 145 | // We activate the endpoint to be able to recceive data |
| okini3939 | 1:bb08a84162b7 | 146 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 147 | |
| okini3939 | 1:bb08a84162b7 | 148 | //activate readings |
| okini3939 | 1:bb08a84162b7 | 149 | readStart(MSDBULK_OUT, MAX_PACKET_SIZE_MSDBULK); |
| okini3939 | 1:bb08a84162b7 | 150 | return true; |
| okini3939 | 1:bb08a84162b7 | 151 | } |
| okini3939 | 1:bb08a84162b7 | 152 | |
| okini3939 | 1:bb08a84162b7 | 153 | bool USBCDCMSC::send(uint8_t * buffer, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 154 | return USBDevice::write(EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE); |
| okini3939 | 1:bb08a84162b7 | 155 | } |
| okini3939 | 1:bb08a84162b7 | 156 | |
| okini3939 | 1:bb08a84162b7 | 157 | bool USBCDCMSC::readEP(uint8_t * buffer, uint16_t * size) { |
| okini3939 | 1:bb08a84162b7 | 158 | if (!USBDevice::readEP(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) |
| okini3939 | 1:bb08a84162b7 | 159 | return false; |
| okini3939 | 1:bb08a84162b7 | 160 | if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE)) |
| okini3939 | 1:bb08a84162b7 | 161 | return false; |
| okini3939 | 1:bb08a84162b7 | 162 | return true; |
| okini3939 | 1:bb08a84162b7 | 163 | } |
| okini3939 | 1:bb08a84162b7 | 164 | |
| okini3939 | 1:bb08a84162b7 | 165 | bool USBCDCMSC::readEP_NB(uint8_t * buffer, uint16_t * size) { |
| okini3939 | 1:bb08a84162b7 | 166 | if (!USBDevice::readEP_NB(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) |
| okini3939 | 1:bb08a84162b7 | 167 | return false; |
| okini3939 | 1:bb08a84162b7 | 168 | if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE)) |
| okini3939 | 1:bb08a84162b7 | 169 | return false; |
| okini3939 | 1:bb08a84162b7 | 170 | return true; |
| okini3939 | 1:bb08a84162b7 | 171 | } |
| okini3939 | 1:bb08a84162b7 | 172 | |
| okini3939 | 1:bb08a84162b7 | 173 | |
| okini3939 | 1:bb08a84162b7 | 174 | uint8_t * USBCDCMSC::deviceDesc() { |
| okini3939 | 1:bb08a84162b7 | 175 | static uint8_t deviceDescriptor[] = { |
| okini3939 | 1:bb08a84162b7 | 176 | 18, // bLength |
| okini3939 | 1:bb08a84162b7 | 177 | 1, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 178 | 0x10, 0x01, // bcdUSB |
| okini3939 | 1:bb08a84162b7 | 179 | 0xef, // bDeviceClass |
| okini3939 | 1:bb08a84162b7 | 180 | 0x02, // bDeviceSubClass |
| okini3939 | 1:bb08a84162b7 | 181 | 0x01, // bDeviceProtocol |
| okini3939 | 1:bb08a84162b7 | 182 | MAX_PACKET_SIZE_EP0, // bMaxPacketSize0 |
| okini3939 | 1:bb08a84162b7 | 183 | LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor |
| okini3939 | 1:bb08a84162b7 | 184 | LSB(PRODUCT_ID), MSB(PRODUCT_ID),// idProduct |
| okini3939 | 1:bb08a84162b7 | 185 | 0x00, 0x01, // bcdDevice |
| okini3939 | 1:bb08a84162b7 | 186 | 1, // iManufacturer |
| okini3939 | 1:bb08a84162b7 | 187 | 2, // iProduct |
| okini3939 | 1:bb08a84162b7 | 188 | 3, // iSerialNumber |
| okini3939 | 1:bb08a84162b7 | 189 | 1 // bNumConfigurations |
| okini3939 | 1:bb08a84162b7 | 190 | }; |
| okini3939 | 1:bb08a84162b7 | 191 | return deviceDescriptor; |
| okini3939 | 1:bb08a84162b7 | 192 | } |
| okini3939 | 1:bb08a84162b7 | 193 | |
| okini3939 | 1:bb08a84162b7 | 194 | uint8_t * USBCDCMSC::stringIinterfaceDesc() { |
| okini3939 | 1:bb08a84162b7 | 195 | static uint8_t stringIinterfaceDescriptor[] = { |
| okini3939 | 1:bb08a84162b7 | 196 | 0x0e, |
| okini3939 | 1:bb08a84162b7 | 197 | STRING_DESCRIPTOR, |
| okini3939 | 1:bb08a84162b7 | 198 | 'C',0,'D',0,'C',0,'M',0,'S',0,'C',0, |
| okini3939 | 1:bb08a84162b7 | 199 | }; |
| okini3939 | 1:bb08a84162b7 | 200 | return stringIinterfaceDescriptor; |
| okini3939 | 1:bb08a84162b7 | 201 | } |
| okini3939 | 1:bb08a84162b7 | 202 | |
| okini3939 | 1:bb08a84162b7 | 203 | uint8_t * USBCDCMSC::stringIproductDesc() { |
| okini3939 | 1:bb08a84162b7 | 204 | static uint8_t stringIproductDescriptor[] = { |
| okini3939 | 1:bb08a84162b7 | 205 | 0x1c, |
| okini3939 | 1:bb08a84162b7 | 206 | STRING_DESCRIPTOR, |
| okini3939 | 1:bb08a84162b7 | 207 | 'C',0,'D',0,'C',0,'M',0,'S',0,'C',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0 |
| okini3939 | 1:bb08a84162b7 | 208 | }; |
| okini3939 | 1:bb08a84162b7 | 209 | return stringIproductDescriptor; |
| okini3939 | 1:bb08a84162b7 | 210 | } |
| okini3939 | 1:bb08a84162b7 | 211 | |
| okini3939 | 1:bb08a84162b7 | 212 | |
| okini3939 | 1:bb08a84162b7 | 213 | uint8_t * USBCDCMSC::configurationDesc() { |
| okini3939 | 1:bb08a84162b7 | 214 | static uint8_t configDescriptor[] = { |
| okini3939 | 1:bb08a84162b7 | 215 | 9, // bLength; |
| okini3939 | 1:bb08a84162b7 | 216 | 2, // bDescriptorType; |
| okini3939 | 1:bb08a84162b7 | 217 | LSB(0x62), // wTotalLength |
| okini3939 | 1:bb08a84162b7 | 218 | MSB(0x62), |
| okini3939 | 1:bb08a84162b7 | 219 | 3, // bNumInterfaces |
| okini3939 | 1:bb08a84162b7 | 220 | 1, // bConfigurationValue |
| okini3939 | 1:bb08a84162b7 | 221 | 0, // iConfiguration |
| okini3939 | 1:bb08a84162b7 | 222 | 0xc0, // bmAttributes |
| okini3939 | 1:bb08a84162b7 | 223 | 50, // bMaxPower |
| okini3939 | 1:bb08a84162b7 | 224 | |
| okini3939 | 1:bb08a84162b7 | 225 | // IAD |
| okini3939 | 1:bb08a84162b7 | 226 | // 0x08, 0x0B, 0x00, 0x02, 0x02, 0x00, 0x00, 0x00, |
| okini3939 | 1:bb08a84162b7 | 227 | 0x08, 0x0B, 0x00, 0x02, 0x02, 0x02, 0x01, 0x00, |
| okini3939 | 1:bb08a84162b7 | 228 | |
| okini3939 | 1:bb08a84162b7 | 229 | // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 |
| okini3939 | 1:bb08a84162b7 | 230 | 9, // bLength |
| okini3939 | 1:bb08a84162b7 | 231 | 4, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 232 | 0, // bInterfaceNumber |
| okini3939 | 1:bb08a84162b7 | 233 | 0, // bAlternateSetting |
| okini3939 | 1:bb08a84162b7 | 234 | 1, // bNumEndpoints |
| okini3939 | 1:bb08a84162b7 | 235 | 0x02, // bInterfaceClass |
| okini3939 | 1:bb08a84162b7 | 236 | 0x02, // bInterfaceSubClass |
| okini3939 | 1:bb08a84162b7 | 237 | 0x01, // bInterfaceProtocol |
| okini3939 | 1:bb08a84162b7 | 238 | 0, // iInterface |
| okini3939 | 1:bb08a84162b7 | 239 | |
| okini3939 | 1:bb08a84162b7 | 240 | // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26 |
| okini3939 | 1:bb08a84162b7 | 241 | 5, // bFunctionLength |
| okini3939 | 1:bb08a84162b7 | 242 | 0x24, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 243 | 0x00, // bDescriptorSubtype |
| okini3939 | 1:bb08a84162b7 | 244 | 0x10, 0x01, // bcdCDC |
| okini3939 | 1:bb08a84162b7 | 245 | |
| okini3939 | 1:bb08a84162b7 | 246 | // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27 |
| okini3939 | 1:bb08a84162b7 | 247 | 5, // bFunctionLength |
| okini3939 | 1:bb08a84162b7 | 248 | 0x24, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 249 | 0x01, // bDescriptorSubtype |
| okini3939 | 1:bb08a84162b7 | 250 | 0x03, // bmCapabilities |
| okini3939 | 1:bb08a84162b7 | 251 | 1, // bDataInterface |
| okini3939 | 1:bb08a84162b7 | 252 | |
| okini3939 | 1:bb08a84162b7 | 253 | // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28 |
| okini3939 | 1:bb08a84162b7 | 254 | 4, // bFunctionLength |
| okini3939 | 1:bb08a84162b7 | 255 | 0x24, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 256 | 0x02, // bDescriptorSubtype |
| okini3939 | 1:bb08a84162b7 | 257 | 0x06, // bmCapabilities |
| okini3939 | 1:bb08a84162b7 | 258 | |
| okini3939 | 1:bb08a84162b7 | 259 | // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33 |
| okini3939 | 1:bb08a84162b7 | 260 | 5, // bFunctionLength |
| okini3939 | 1:bb08a84162b7 | 261 | 0x24, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 262 | 0x06, // bDescriptorSubtype |
| okini3939 | 1:bb08a84162b7 | 263 | 0, // bMasterInterface |
| okini3939 | 1:bb08a84162b7 | 264 | 1, // bSlaveInterface0 |
| okini3939 | 1:bb08a84162b7 | 265 | |
| okini3939 | 1:bb08a84162b7 | 266 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| okini3939 | 1:bb08a84162b7 | 267 | ENDPOINT_DESCRIPTOR_LENGTH, // bLength |
| okini3939 | 1:bb08a84162b7 | 268 | ENDPOINT_DESCRIPTOR, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 269 | PHY_TO_DESC(EPINT_IN), // bEndpointAddress |
| okini3939 | 1:bb08a84162b7 | 270 | E_INTERRUPT, // bmAttributes (0x03=intr) |
| okini3939 | 1:bb08a84162b7 | 271 | LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB) |
| okini3939 | 1:bb08a84162b7 | 272 | MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB) |
| okini3939 | 1:bb08a84162b7 | 273 | 16, // bInterval |
| okini3939 | 1:bb08a84162b7 | 274 | |
| okini3939 | 1:bb08a84162b7 | 275 | |
| okini3939 | 1:bb08a84162b7 | 276 | |
| okini3939 | 1:bb08a84162b7 | 277 | |
| okini3939 | 1:bb08a84162b7 | 278 | // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 |
| okini3939 | 1:bb08a84162b7 | 279 | 9, // bLength |
| okini3939 | 1:bb08a84162b7 | 280 | 4, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 281 | 1, // bInterfaceNumber |
| okini3939 | 1:bb08a84162b7 | 282 | 0, // bAlternateSetting |
| okini3939 | 1:bb08a84162b7 | 283 | 2, // bNumEndpoints |
| okini3939 | 1:bb08a84162b7 | 284 | 0x0A, // bInterfaceClass |
| okini3939 | 1:bb08a84162b7 | 285 | 0x00, // bInterfaceSubClass |
| okini3939 | 1:bb08a84162b7 | 286 | 0x00, // bInterfaceProtocol |
| okini3939 | 1:bb08a84162b7 | 287 | 0, // iInterface |
| okini3939 | 1:bb08a84162b7 | 288 | |
| okini3939 | 1:bb08a84162b7 | 289 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| okini3939 | 1:bb08a84162b7 | 290 | 7, // bLength |
| okini3939 | 1:bb08a84162b7 | 291 | 5, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 292 | PHY_TO_DESC(EPBULK_IN), // bEndpointAddress |
| okini3939 | 1:bb08a84162b7 | 293 | 0x02, // bmAttributes (0x02=bulk) |
| okini3939 | 1:bb08a84162b7 | 294 | LSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (LSB) |
| okini3939 | 1:bb08a84162b7 | 295 | MSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (MSB) |
| okini3939 | 1:bb08a84162b7 | 296 | 0, // bInterval |
| okini3939 | 1:bb08a84162b7 | 297 | |
| okini3939 | 1:bb08a84162b7 | 298 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| okini3939 | 1:bb08a84162b7 | 299 | 7, // bLength |
| okini3939 | 1:bb08a84162b7 | 300 | 5, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 301 | PHY_TO_DESC(EPBULK_OUT),// bEndpointAddress |
| okini3939 | 1:bb08a84162b7 | 302 | 0x02, // bmAttributes (0x02=bulk) |
| okini3939 | 1:bb08a84162b7 | 303 | LSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (LSB) |
| okini3939 | 1:bb08a84162b7 | 304 | MSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (MSB) |
| okini3939 | 1:bb08a84162b7 | 305 | 0, // bInterval |
| okini3939 | 1:bb08a84162b7 | 306 | |
| okini3939 | 1:bb08a84162b7 | 307 | // Interface 2, Alternate Setting 0, MSC Class |
| okini3939 | 1:bb08a84162b7 | 308 | 9, // bLength |
| okini3939 | 1:bb08a84162b7 | 309 | 4, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 310 | 0x02, // bInterfaceNumber |
| okini3939 | 1:bb08a84162b7 | 311 | 0x00, // bAlternateSetting |
| okini3939 | 1:bb08a84162b7 | 312 | 0x02, // bNumEndpoints |
| okini3939 | 1:bb08a84162b7 | 313 | 0x08, // bInterfaceClass |
| okini3939 | 1:bb08a84162b7 | 314 | 0x06, // bInterfaceSubClass |
| okini3939 | 1:bb08a84162b7 | 315 | 0x50, // bInterfaceProtocol |
| okini3939 | 1:bb08a84162b7 | 316 | 0x04, // iInterface |
| okini3939 | 1:bb08a84162b7 | 317 | |
| okini3939 | 1:bb08a84162b7 | 318 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| okini3939 | 1:bb08a84162b7 | 319 | 7, // bLength |
| okini3939 | 1:bb08a84162b7 | 320 | 5, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 321 | PHY_TO_DESC(MSDBULK_IN), // bEndpointAddress |
| okini3939 | 1:bb08a84162b7 | 322 | 0x02, // bmAttributes (0x02=bulk) |
| okini3939 | 1:bb08a84162b7 | 323 | LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) |
| okini3939 | 1:bb08a84162b7 | 324 | MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) |
| okini3939 | 1:bb08a84162b7 | 325 | 0, // bInterval |
| okini3939 | 1:bb08a84162b7 | 326 | |
| okini3939 | 1:bb08a84162b7 | 327 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| okini3939 | 1:bb08a84162b7 | 328 | 7, // bLength |
| okini3939 | 1:bb08a84162b7 | 329 | 5, // bDescriptorType |
| okini3939 | 1:bb08a84162b7 | 330 | PHY_TO_DESC(MSDBULK_OUT), // bEndpointAddress |
| okini3939 | 1:bb08a84162b7 | 331 | 0x02, // bmAttributes (0x02=bulk) |
| okini3939 | 1:bb08a84162b7 | 332 | LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) |
| okini3939 | 1:bb08a84162b7 | 333 | MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) |
| okini3939 | 1:bb08a84162b7 | 334 | 0 // bInterval |
| okini3939 | 1:bb08a84162b7 | 335 | }; |
| okini3939 | 1:bb08a84162b7 | 336 | return configDescriptor; |
| okini3939 | 1:bb08a84162b7 | 337 | } |
| okini3939 | 1:bb08a84162b7 | 338 | |
| okini3939 | 1:bb08a84162b7 | 339 | int USBCDCMSC::_putc(int c) { |
| okini3939 | 1:bb08a84162b7 | 340 | send((uint8_t *)&c, 1); |
| okini3939 | 1:bb08a84162b7 | 341 | return 1; |
| okini3939 | 1:bb08a84162b7 | 342 | } |
| okini3939 | 1:bb08a84162b7 | 343 | |
| okini3939 | 1:bb08a84162b7 | 344 | int USBCDCMSC::_getc() { |
| okini3939 | 1:bb08a84162b7 | 345 | uint8_t c; |
| okini3939 | 1:bb08a84162b7 | 346 | while (cdcbuf.isEmpty()); |
| okini3939 | 1:bb08a84162b7 | 347 | cdcbuf.dequeue(&c); |
| okini3939 | 1:bb08a84162b7 | 348 | return c; |
| okini3939 | 1:bb08a84162b7 | 349 | } |
| okini3939 | 1:bb08a84162b7 | 350 | |
| okini3939 | 1:bb08a84162b7 | 351 | |
| okini3939 | 1:bb08a84162b7 | 352 | bool USBCDCMSC::writeBlock(uint8_t * buf, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 353 | if(size > MAX_PACKET_SIZE_EPBULK) { |
| okini3939 | 1:bb08a84162b7 | 354 | return false; |
| okini3939 | 1:bb08a84162b7 | 355 | } |
| okini3939 | 1:bb08a84162b7 | 356 | if(!send(buf, size)) { |
| okini3939 | 1:bb08a84162b7 | 357 | return false; |
| okini3939 | 1:bb08a84162b7 | 358 | } |
| okini3939 | 1:bb08a84162b7 | 359 | return true; |
| okini3939 | 1:bb08a84162b7 | 360 | } |
| okini3939 | 1:bb08a84162b7 | 361 | |
| okini3939 | 1:bb08a84162b7 | 362 | |
| okini3939 | 1:bb08a84162b7 | 363 | |
| okini3939 | 1:bb08a84162b7 | 364 | bool USBCDCMSC::EP2_OUT_callback() { |
| okini3939 | 1:bb08a84162b7 | 365 | uint8_t c[65]; |
| okini3939 | 1:bb08a84162b7 | 366 | uint16_t size = 0; |
| okini3939 | 1:bb08a84162b7 | 367 | |
| okini3939 | 1:bb08a84162b7 | 368 | //we read the packet received and put it on the circular buffer |
| okini3939 | 1:bb08a84162b7 | 369 | readEP(c, &size); |
| okini3939 | 1:bb08a84162b7 | 370 | for (int i = 0; i < size; i++) { |
| okini3939 | 1:bb08a84162b7 | 371 | cdcbuf.queue(c[i]); |
| okini3939 | 1:bb08a84162b7 | 372 | } |
| okini3939 | 1:bb08a84162b7 | 373 | |
| okini3939 | 1:bb08a84162b7 | 374 | //call a potential handler |
| okini3939 | 1:bb08a84162b7 | 375 | rx.call(); |
| okini3939 | 1:bb08a84162b7 | 376 | |
| okini3939 | 1:bb08a84162b7 | 377 | // We reactivate the endpoint to receive next characters |
| okini3939 | 1:bb08a84162b7 | 378 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 379 | return true; |
| okini3939 | 1:bb08a84162b7 | 380 | } |
| okini3939 | 1:bb08a84162b7 | 381 | |
| okini3939 | 1:bb08a84162b7 | 382 | uint8_t USBCDCMSC::available() { |
| okini3939 | 1:bb08a84162b7 | 383 | return cdcbuf.available(); |
| okini3939 | 1:bb08a84162b7 | 384 | } |
| okini3939 | 1:bb08a84162b7 | 385 | |
| okini3939 | 1:bb08a84162b7 | 386 | |
| okini3939 | 1:bb08a84162b7 | 387 | bool USBCDCMSC::connect() { |
| okini3939 | 1:bb08a84162b7 | 388 | |
| okini3939 | 1:bb08a84162b7 | 389 | //disk initialization |
| okini3939 | 1:bb08a84162b7 | 390 | if (disk_status() & NO_INIT) { |
| okini3939 | 1:bb08a84162b7 | 391 | if (disk_initialize()) { |
| okini3939 | 1:bb08a84162b7 | 392 | return false; |
| okini3939 | 1:bb08a84162b7 | 393 | } |
| okini3939 | 1:bb08a84162b7 | 394 | } |
| okini3939 | 1:bb08a84162b7 | 395 | |
| okini3939 | 1:bb08a84162b7 | 396 | // get number of blocks |
| okini3939 | 1:bb08a84162b7 | 397 | BlockCount = disk_sectors(); |
| okini3939 | 1:bb08a84162b7 | 398 | |
| okini3939 | 1:bb08a84162b7 | 399 | // get memory size |
| okini3939 | 1:bb08a84162b7 | 400 | MemorySize = disk_size(); |
| okini3939 | 1:bb08a84162b7 | 401 | |
| okini3939 | 1:bb08a84162b7 | 402 | if (BlockCount >= 0) { |
| okini3939 | 1:bb08a84162b7 | 403 | BlockSize = MemorySize / BlockCount; |
| okini3939 | 1:bb08a84162b7 | 404 | if (BlockSize != 0) { |
| okini3939 | 1:bb08a84162b7 | 405 | page = (uint8_t *)malloc(BlockSize * sizeof(uint8_t)); |
| okini3939 | 1:bb08a84162b7 | 406 | if (page == NULL) |
| okini3939 | 1:bb08a84162b7 | 407 | return false; |
| okini3939 | 1:bb08a84162b7 | 408 | } |
| okini3939 | 1:bb08a84162b7 | 409 | } else { |
| okini3939 | 1:bb08a84162b7 | 410 | return false; |
| okini3939 | 1:bb08a84162b7 | 411 | } |
| okini3939 | 1:bb08a84162b7 | 412 | |
| okini3939 | 1:bb08a84162b7 | 413 | //connect the device |
| okini3939 | 1:bb08a84162b7 | 414 | USBDevice::connect(); |
| okini3939 | 1:bb08a84162b7 | 415 | return true; |
| okini3939 | 1:bb08a84162b7 | 416 | } |
| okini3939 | 1:bb08a84162b7 | 417 | |
| okini3939 | 1:bb08a84162b7 | 418 | |
| okini3939 | 1:bb08a84162b7 | 419 | void USBCDCMSC::reset() { |
| okini3939 | 1:bb08a84162b7 | 420 | stage = READ_CBW; |
| okini3939 | 1:bb08a84162b7 | 421 | } |
| okini3939 | 1:bb08a84162b7 | 422 | |
| okini3939 | 1:bb08a84162b7 | 423 | |
| okini3939 | 1:bb08a84162b7 | 424 | // Called in ISR context called when a data is received |
| okini3939 | 1:bb08a84162b7 | 425 | bool USBCDCMSC::EP5_OUT_callback() { |
| okini3939 | 1:bb08a84162b7 | 426 | uint16_t size = 0; |
| okini3939 | 1:bb08a84162b7 | 427 | uint8_t buf[MAX_PACKET_SIZE_EPBULK]; |
| okini3939 | 1:bb08a84162b7 | 428 | USBDevice::readEP(MSDBULK_OUT, buf, &size, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 429 | switch (stage) { |
| okini3939 | 1:bb08a84162b7 | 430 | // the device has to decode the CBW received |
| okini3939 | 1:bb08a84162b7 | 431 | case READ_CBW: |
| okini3939 | 1:bb08a84162b7 | 432 | CBWDecode(buf, size); |
| okini3939 | 1:bb08a84162b7 | 433 | break; |
| okini3939 | 1:bb08a84162b7 | 434 | |
| okini3939 | 1:bb08a84162b7 | 435 | // the device has to receive data from the host |
| okini3939 | 1:bb08a84162b7 | 436 | case PROCESS_CBW: |
| okini3939 | 1:bb08a84162b7 | 437 | switch (cbw.CB[0]) { |
| okini3939 | 1:bb08a84162b7 | 438 | case WRITE10: |
| okini3939 | 1:bb08a84162b7 | 439 | case WRITE12: |
| okini3939 | 1:bb08a84162b7 | 440 | memoryWrite(buf, size); |
| okini3939 | 1:bb08a84162b7 | 441 | break; |
| okini3939 | 1:bb08a84162b7 | 442 | case VERIFY10: |
| okini3939 | 1:bb08a84162b7 | 443 | memoryVerify(buf, size); |
| okini3939 | 1:bb08a84162b7 | 444 | break; |
| okini3939 | 1:bb08a84162b7 | 445 | } |
| okini3939 | 1:bb08a84162b7 | 446 | break; |
| okini3939 | 1:bb08a84162b7 | 447 | |
| okini3939 | 1:bb08a84162b7 | 448 | // an error has occured: stall endpoint and send CSW |
| okini3939 | 1:bb08a84162b7 | 449 | default: |
| okini3939 | 1:bb08a84162b7 | 450 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 451 | csw.Status = CSW_ERROR; |
| okini3939 | 1:bb08a84162b7 | 452 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 453 | break; |
| okini3939 | 1:bb08a84162b7 | 454 | } |
| okini3939 | 1:bb08a84162b7 | 455 | |
| okini3939 | 1:bb08a84162b7 | 456 | //reactivate readings on the OUT bulk endpoint |
| okini3939 | 1:bb08a84162b7 | 457 | readStart(MSDBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 458 | return true; |
| okini3939 | 1:bb08a84162b7 | 459 | } |
| okini3939 | 1:bb08a84162b7 | 460 | |
| okini3939 | 1:bb08a84162b7 | 461 | // Called in ISR context when a data has been transferred |
| okini3939 | 1:bb08a84162b7 | 462 | bool USBCDCMSC::EP5_IN_callback() { |
| okini3939 | 1:bb08a84162b7 | 463 | switch (stage) { |
| okini3939 | 1:bb08a84162b7 | 464 | |
| okini3939 | 1:bb08a84162b7 | 465 | // the device has to send data to the host |
| okini3939 | 1:bb08a84162b7 | 466 | case PROCESS_CBW: |
| okini3939 | 1:bb08a84162b7 | 467 | switch (cbw.CB[0]) { |
| okini3939 | 1:bb08a84162b7 | 468 | case READ10: |
| okini3939 | 1:bb08a84162b7 | 469 | case READ12: |
| okini3939 | 1:bb08a84162b7 | 470 | memoryRead(); |
| okini3939 | 1:bb08a84162b7 | 471 | break; |
| okini3939 | 1:bb08a84162b7 | 472 | } |
| okini3939 | 1:bb08a84162b7 | 473 | break; |
| okini3939 | 1:bb08a84162b7 | 474 | |
| okini3939 | 1:bb08a84162b7 | 475 | //the device has to send a CSW |
| okini3939 | 1:bb08a84162b7 | 476 | case SEND_CSW: |
| okini3939 | 1:bb08a84162b7 | 477 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 478 | break; |
| okini3939 | 1:bb08a84162b7 | 479 | |
| okini3939 | 1:bb08a84162b7 | 480 | // an error has occured |
| okini3939 | 1:bb08a84162b7 | 481 | case ERROR: |
| okini3939 | 1:bb08a84162b7 | 482 | stallEndpoint(MSDBULK_IN); |
| okini3939 | 1:bb08a84162b7 | 483 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 484 | break; |
| okini3939 | 1:bb08a84162b7 | 485 | |
| okini3939 | 1:bb08a84162b7 | 486 | // the host has received the CSW -> we wait a CBW |
| okini3939 | 1:bb08a84162b7 | 487 | case WAIT_CSW: |
| okini3939 | 1:bb08a84162b7 | 488 | stage = READ_CBW; |
| okini3939 | 1:bb08a84162b7 | 489 | break; |
| okini3939 | 1:bb08a84162b7 | 490 | } |
| okini3939 | 1:bb08a84162b7 | 491 | return true; |
| okini3939 | 1:bb08a84162b7 | 492 | } |
| okini3939 | 1:bb08a84162b7 | 493 | |
| okini3939 | 1:bb08a84162b7 | 494 | |
| okini3939 | 1:bb08a84162b7 | 495 | void USBCDCMSC::memoryWrite (uint8_t * buf, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 496 | |
| okini3939 | 1:bb08a84162b7 | 497 | if ((addr + size) > MemorySize) { |
| okini3939 | 1:bb08a84162b7 | 498 | size = MemorySize - addr; |
| okini3939 | 1:bb08a84162b7 | 499 | stage = ERROR; |
| okini3939 | 1:bb08a84162b7 | 500 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 501 | } |
| okini3939 | 1:bb08a84162b7 | 502 | |
| okini3939 | 1:bb08a84162b7 | 503 | // we fill an array in RAM of 1 block before writing it in memory |
| okini3939 | 1:bb08a84162b7 | 504 | for (int i = 0; i < size; i++) |
| okini3939 | 1:bb08a84162b7 | 505 | page[addr%BlockSize + i] = buf[i]; |
| okini3939 | 1:bb08a84162b7 | 506 | |
| okini3939 | 1:bb08a84162b7 | 507 | // if the array is filled, write it in memory |
| okini3939 | 1:bb08a84162b7 | 508 | if (!((addr + size)%BlockSize)) { |
| okini3939 | 1:bb08a84162b7 | 509 | if (!(disk_status() & WRITE_PROTECT)) { |
| okini3939 | 1:bb08a84162b7 | 510 | disk_write((const char *)page, addr/BlockSize); |
| okini3939 | 1:bb08a84162b7 | 511 | } |
| okini3939 | 1:bb08a84162b7 | 512 | } |
| okini3939 | 1:bb08a84162b7 | 513 | |
| okini3939 | 1:bb08a84162b7 | 514 | addr += size; |
| okini3939 | 1:bb08a84162b7 | 515 | length -= size; |
| okini3939 | 1:bb08a84162b7 | 516 | csw.DataResidue -= size; |
| okini3939 | 1:bb08a84162b7 | 517 | |
| okini3939 | 1:bb08a84162b7 | 518 | if ((!length) || (stage != PROCESS_CBW)) { |
| okini3939 | 1:bb08a84162b7 | 519 | csw.Status = (stage == ERROR) ? CSW_FAILED : CSW_PASSED; |
| okini3939 | 1:bb08a84162b7 | 520 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 521 | } |
| okini3939 | 1:bb08a84162b7 | 522 | } |
| okini3939 | 1:bb08a84162b7 | 523 | |
| okini3939 | 1:bb08a84162b7 | 524 | void USBCDCMSC::memoryVerify (uint8_t * buf, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 525 | uint32_t n; |
| okini3939 | 1:bb08a84162b7 | 526 | |
| okini3939 | 1:bb08a84162b7 | 527 | if ((addr + size) > MemorySize) { |
| okini3939 | 1:bb08a84162b7 | 528 | size = MemorySize - addr; |
| okini3939 | 1:bb08a84162b7 | 529 | stage = ERROR; |
| okini3939 | 1:bb08a84162b7 | 530 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 531 | } |
| okini3939 | 1:bb08a84162b7 | 532 | |
| okini3939 | 1:bb08a84162b7 | 533 | // beginning of a new block -> load a whole block in RAM |
| okini3939 | 1:bb08a84162b7 | 534 | if (!(addr%BlockSize)) |
| okini3939 | 1:bb08a84162b7 | 535 | disk_read((char *)page, addr/BlockSize); |
| okini3939 | 1:bb08a84162b7 | 536 | |
| okini3939 | 1:bb08a84162b7 | 537 | // info are in RAM -> no need to re-read memory |
| okini3939 | 1:bb08a84162b7 | 538 | for (n = 0; n < size; n++) { |
| okini3939 | 1:bb08a84162b7 | 539 | if (page[addr%BlockSize + n] != buf[n]) { |
| okini3939 | 1:bb08a84162b7 | 540 | memOK = false; |
| okini3939 | 1:bb08a84162b7 | 541 | break; |
| okini3939 | 1:bb08a84162b7 | 542 | } |
| okini3939 | 1:bb08a84162b7 | 543 | } |
| okini3939 | 1:bb08a84162b7 | 544 | |
| okini3939 | 1:bb08a84162b7 | 545 | addr += size; |
| okini3939 | 1:bb08a84162b7 | 546 | length -= size; |
| okini3939 | 1:bb08a84162b7 | 547 | csw.DataResidue -= size; |
| okini3939 | 1:bb08a84162b7 | 548 | |
| okini3939 | 1:bb08a84162b7 | 549 | if ( !length || (stage != PROCESS_CBW)) { |
| okini3939 | 1:bb08a84162b7 | 550 | csw.Status = (memOK && (stage == PROCESS_CBW)) ? CSW_PASSED : CSW_FAILED; |
| okini3939 | 1:bb08a84162b7 | 551 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 552 | } |
| okini3939 | 1:bb08a84162b7 | 553 | } |
| okini3939 | 1:bb08a84162b7 | 554 | |
| okini3939 | 1:bb08a84162b7 | 555 | |
| okini3939 | 1:bb08a84162b7 | 556 | bool USBCDCMSC::inquiryRequest (void) { |
| okini3939 | 1:bb08a84162b7 | 557 | uint8_t inquiry[] = { 0x00, 0x80, 0x00, 0x01, |
| okini3939 | 1:bb08a84162b7 | 558 | 36 - 4, 0x80, 0x00, 0x00, |
| okini3939 | 1:bb08a84162b7 | 559 | 'M', 'B', 'E', 'D', '.', 'O', 'R', 'G', |
| okini3939 | 1:bb08a84162b7 | 560 | 'M', 'B', 'E', 'D', ' ', 'U', 'S', 'B', ' ', 'D', 'I', 'S', 'K', ' ', ' ', ' ', |
| okini3939 | 1:bb08a84162b7 | 561 | '1', '.', '0', ' ', |
| okini3939 | 1:bb08a84162b7 | 562 | }; |
| okini3939 | 1:bb08a84162b7 | 563 | if (!msd_write(inquiry, sizeof(inquiry))) { |
| okini3939 | 1:bb08a84162b7 | 564 | return false; |
| okini3939 | 1:bb08a84162b7 | 565 | } |
| okini3939 | 1:bb08a84162b7 | 566 | return true; |
| okini3939 | 1:bb08a84162b7 | 567 | } |
| okini3939 | 1:bb08a84162b7 | 568 | |
| okini3939 | 1:bb08a84162b7 | 569 | |
| okini3939 | 1:bb08a84162b7 | 570 | bool USBCDCMSC::readFormatCapacity() { |
| okini3939 | 1:bb08a84162b7 | 571 | uint8_t capacity[] = { 0x00, 0x00, 0x00, 0x08, |
| okini3939 | 1:bb08a84162b7 | 572 | (BlockCount >> 24) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 573 | (BlockCount >> 16) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 574 | (BlockCount >> 8) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 575 | (BlockCount >> 0) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 576 | |
| okini3939 | 1:bb08a84162b7 | 577 | 0x02, |
| okini3939 | 1:bb08a84162b7 | 578 | (BlockSize >> 16) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 579 | (BlockSize >> 8) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 580 | (BlockSize >> 0) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 581 | }; |
| okini3939 | 1:bb08a84162b7 | 582 | if (!msd_write(capacity, sizeof(capacity))) { |
| okini3939 | 1:bb08a84162b7 | 583 | return false; |
| okini3939 | 1:bb08a84162b7 | 584 | } |
| okini3939 | 1:bb08a84162b7 | 585 | return true; |
| okini3939 | 1:bb08a84162b7 | 586 | } |
| okini3939 | 1:bb08a84162b7 | 587 | |
| okini3939 | 1:bb08a84162b7 | 588 | |
| okini3939 | 1:bb08a84162b7 | 589 | bool USBCDCMSC::readCapacity (void) { |
| okini3939 | 1:bb08a84162b7 | 590 | uint8_t capacity[] = { |
| okini3939 | 1:bb08a84162b7 | 591 | ((BlockCount - 1) >> 24) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 592 | ((BlockCount - 1) >> 16) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 593 | ((BlockCount - 1) >> 8) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 594 | ((BlockCount - 1) >> 0) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 595 | |
| okini3939 | 1:bb08a84162b7 | 596 | (BlockSize >> 24) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 597 | (BlockSize >> 16) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 598 | (BlockSize >> 8) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 599 | (BlockSize >> 0) & 0xff, |
| okini3939 | 1:bb08a84162b7 | 600 | }; |
| okini3939 | 1:bb08a84162b7 | 601 | if (!msd_write(capacity, sizeof(capacity))) { |
| okini3939 | 1:bb08a84162b7 | 602 | return false; |
| okini3939 | 1:bb08a84162b7 | 603 | } |
| okini3939 | 1:bb08a84162b7 | 604 | return true; |
| okini3939 | 1:bb08a84162b7 | 605 | } |
| okini3939 | 1:bb08a84162b7 | 606 | |
| okini3939 | 1:bb08a84162b7 | 607 | bool USBCDCMSC::msd_write (uint8_t * buf, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 608 | |
| okini3939 | 1:bb08a84162b7 | 609 | if (size >= cbw.DataLength) { |
| okini3939 | 1:bb08a84162b7 | 610 | size = cbw.DataLength; |
| okini3939 | 1:bb08a84162b7 | 611 | } |
| okini3939 | 1:bb08a84162b7 | 612 | stage = SEND_CSW; |
| okini3939 | 1:bb08a84162b7 | 613 | |
| okini3939 | 1:bb08a84162b7 | 614 | if (!writeNB(MSDBULK_IN, buf, size, MAX_PACKET_SIZE_EPBULK)) { |
| okini3939 | 1:bb08a84162b7 | 615 | return false; |
| okini3939 | 1:bb08a84162b7 | 616 | } |
| okini3939 | 1:bb08a84162b7 | 617 | |
| okini3939 | 1:bb08a84162b7 | 618 | csw.DataResidue -= size; |
| okini3939 | 1:bb08a84162b7 | 619 | csw.Status = CSW_PASSED; |
| okini3939 | 1:bb08a84162b7 | 620 | return true; |
| okini3939 | 1:bb08a84162b7 | 621 | } |
| okini3939 | 1:bb08a84162b7 | 622 | |
| okini3939 | 1:bb08a84162b7 | 623 | |
| okini3939 | 1:bb08a84162b7 | 624 | bool USBCDCMSC::modeSense6 (void) { |
| okini3939 | 1:bb08a84162b7 | 625 | uint8_t sense6[] = { 0x03, 0x00, 0x00, 0x00 }; |
| okini3939 | 1:bb08a84162b7 | 626 | if (!msd_write(sense6, sizeof(sense6))) { |
| okini3939 | 1:bb08a84162b7 | 627 | return false; |
| okini3939 | 1:bb08a84162b7 | 628 | } |
| okini3939 | 1:bb08a84162b7 | 629 | return true; |
| okini3939 | 1:bb08a84162b7 | 630 | } |
| okini3939 | 1:bb08a84162b7 | 631 | |
| okini3939 | 1:bb08a84162b7 | 632 | void USBCDCMSC::sendCSW() { |
| okini3939 | 1:bb08a84162b7 | 633 | csw.Signature = CSW_Signature; |
| okini3939 | 1:bb08a84162b7 | 634 | writeNB(MSDBULK_IN, (uint8_t *)&csw, sizeof(CSW), MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 635 | stage = WAIT_CSW; |
| okini3939 | 1:bb08a84162b7 | 636 | } |
| okini3939 | 1:bb08a84162b7 | 637 | |
| okini3939 | 1:bb08a84162b7 | 638 | bool USBCDCMSC::requestSense (void) { |
| okini3939 | 1:bb08a84162b7 | 639 | uint8_t request_sense[] = { |
| okini3939 | 1:bb08a84162b7 | 640 | 0x70, |
| okini3939 | 1:bb08a84162b7 | 641 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 642 | 0x05, // Sense Key: illegal request |
| okini3939 | 1:bb08a84162b7 | 643 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 644 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 645 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 646 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 647 | 0x0A, |
| okini3939 | 1:bb08a84162b7 | 648 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 649 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 650 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 651 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 652 | 0x30, |
| okini3939 | 1:bb08a84162b7 | 653 | 0x01, |
| okini3939 | 1:bb08a84162b7 | 654 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 655 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 656 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 657 | 0x00, |
| okini3939 | 1:bb08a84162b7 | 658 | }; |
| okini3939 | 1:bb08a84162b7 | 659 | |
| okini3939 | 1:bb08a84162b7 | 660 | if (!msd_write(request_sense, sizeof(request_sense))) { |
| okini3939 | 1:bb08a84162b7 | 661 | return false; |
| okini3939 | 1:bb08a84162b7 | 662 | } |
| okini3939 | 1:bb08a84162b7 | 663 | |
| okini3939 | 1:bb08a84162b7 | 664 | return true; |
| okini3939 | 1:bb08a84162b7 | 665 | } |
| okini3939 | 1:bb08a84162b7 | 666 | |
| okini3939 | 1:bb08a84162b7 | 667 | void USBCDCMSC::fail() { |
| okini3939 | 1:bb08a84162b7 | 668 | csw.Status = CSW_FAILED; |
| okini3939 | 1:bb08a84162b7 | 669 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 670 | } |
| okini3939 | 1:bb08a84162b7 | 671 | |
| okini3939 | 1:bb08a84162b7 | 672 | |
| okini3939 | 1:bb08a84162b7 | 673 | void USBCDCMSC::CBWDecode(uint8_t * buf, uint16_t size) { |
| okini3939 | 1:bb08a84162b7 | 674 | if (size == sizeof(cbw)) { |
| okini3939 | 1:bb08a84162b7 | 675 | memcpy((uint8_t *)&cbw, buf, size); |
| okini3939 | 1:bb08a84162b7 | 676 | if (cbw.Signature == CBW_Signature) { |
| okini3939 | 1:bb08a84162b7 | 677 | csw.Tag = cbw.Tag; |
| okini3939 | 1:bb08a84162b7 | 678 | csw.DataResidue = cbw.DataLength; |
| okini3939 | 1:bb08a84162b7 | 679 | if ((cbw.CBLength < 1) || (cbw.CBLength > 16) ) { |
| okini3939 | 1:bb08a84162b7 | 680 | fail(); |
| okini3939 | 1:bb08a84162b7 | 681 | } else { |
| okini3939 | 1:bb08a84162b7 | 682 | switch (cbw.CB[0]) { |
| okini3939 | 1:bb08a84162b7 | 683 | case TEST_UNIT_READY: |
| okini3939 | 1:bb08a84162b7 | 684 | testUnitReady(); |
| okini3939 | 1:bb08a84162b7 | 685 | break; |
| okini3939 | 1:bb08a84162b7 | 686 | case REQUEST_SENSE: |
| okini3939 | 1:bb08a84162b7 | 687 | requestSense(); |
| okini3939 | 1:bb08a84162b7 | 688 | break; |
| okini3939 | 1:bb08a84162b7 | 689 | case INQUIRY: |
| okini3939 | 1:bb08a84162b7 | 690 | inquiryRequest(); |
| okini3939 | 1:bb08a84162b7 | 691 | break; |
| okini3939 | 1:bb08a84162b7 | 692 | case MODE_SENSE6: |
| okini3939 | 1:bb08a84162b7 | 693 | modeSense6(); |
| okini3939 | 1:bb08a84162b7 | 694 | break; |
| okini3939 | 1:bb08a84162b7 | 695 | case READ_FORMAT_CAPACITIES: |
| okini3939 | 1:bb08a84162b7 | 696 | readFormatCapacity(); |
| okini3939 | 1:bb08a84162b7 | 697 | break; |
| okini3939 | 1:bb08a84162b7 | 698 | case READ_CAPACITY: |
| okini3939 | 1:bb08a84162b7 | 699 | readCapacity(); |
| okini3939 | 1:bb08a84162b7 | 700 | break; |
| okini3939 | 1:bb08a84162b7 | 701 | case READ10: |
| okini3939 | 1:bb08a84162b7 | 702 | case READ12: |
| okini3939 | 1:bb08a84162b7 | 703 | if (infoTransfer()) { |
| okini3939 | 1:bb08a84162b7 | 704 | if ((cbw.Flags & 0x80)) { |
| okini3939 | 1:bb08a84162b7 | 705 | stage = PROCESS_CBW; |
| okini3939 | 1:bb08a84162b7 | 706 | memoryRead(); |
| okini3939 | 1:bb08a84162b7 | 707 | } else { |
| okini3939 | 1:bb08a84162b7 | 708 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 709 | csw.Status = CSW_ERROR; |
| okini3939 | 1:bb08a84162b7 | 710 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 711 | } |
| okini3939 | 1:bb08a84162b7 | 712 | } |
| okini3939 | 1:bb08a84162b7 | 713 | break; |
| okini3939 | 1:bb08a84162b7 | 714 | case WRITE10: |
| okini3939 | 1:bb08a84162b7 | 715 | case WRITE12: |
| okini3939 | 1:bb08a84162b7 | 716 | if (infoTransfer()) { |
| okini3939 | 1:bb08a84162b7 | 717 | if (!(cbw.Flags & 0x80)) { |
| okini3939 | 1:bb08a84162b7 | 718 | stage = PROCESS_CBW; |
| okini3939 | 1:bb08a84162b7 | 719 | } else { |
| okini3939 | 1:bb08a84162b7 | 720 | stallEndpoint(MSDBULK_IN); |
| okini3939 | 1:bb08a84162b7 | 721 | csw.Status = CSW_ERROR; |
| okini3939 | 1:bb08a84162b7 | 722 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 723 | } |
| okini3939 | 1:bb08a84162b7 | 724 | } |
| okini3939 | 1:bb08a84162b7 | 725 | break; |
| okini3939 | 1:bb08a84162b7 | 726 | case VERIFY10: |
| okini3939 | 1:bb08a84162b7 | 727 | if (!(cbw.CB[1] & 0x02)) { |
| okini3939 | 1:bb08a84162b7 | 728 | csw.Status = CSW_PASSED; |
| okini3939 | 1:bb08a84162b7 | 729 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 730 | break; |
| okini3939 | 1:bb08a84162b7 | 731 | } |
| okini3939 | 1:bb08a84162b7 | 732 | if (infoTransfer()) { |
| okini3939 | 1:bb08a84162b7 | 733 | if (!(cbw.Flags & 0x80)) { |
| okini3939 | 1:bb08a84162b7 | 734 | stage = PROCESS_CBW; |
| okini3939 | 1:bb08a84162b7 | 735 | memOK = true; |
| okini3939 | 1:bb08a84162b7 | 736 | } else { |
| okini3939 | 1:bb08a84162b7 | 737 | stallEndpoint(MSDBULK_IN); |
| okini3939 | 1:bb08a84162b7 | 738 | csw.Status = CSW_ERROR; |
| okini3939 | 1:bb08a84162b7 | 739 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 740 | } |
| okini3939 | 1:bb08a84162b7 | 741 | } |
| okini3939 | 1:bb08a84162b7 | 742 | break; |
| okini3939 | 1:bb08a84162b7 | 743 | default: |
| okini3939 | 1:bb08a84162b7 | 744 | fail(); |
| okini3939 | 1:bb08a84162b7 | 745 | break; |
| okini3939 | 1:bb08a84162b7 | 746 | } |
| okini3939 | 1:bb08a84162b7 | 747 | } |
| okini3939 | 1:bb08a84162b7 | 748 | } |
| okini3939 | 1:bb08a84162b7 | 749 | } |
| okini3939 | 1:bb08a84162b7 | 750 | } |
| okini3939 | 1:bb08a84162b7 | 751 | |
| okini3939 | 1:bb08a84162b7 | 752 | void USBCDCMSC::testUnitReady (void) { |
| okini3939 | 1:bb08a84162b7 | 753 | |
| okini3939 | 1:bb08a84162b7 | 754 | if (cbw.DataLength != 0) { |
| okini3939 | 1:bb08a84162b7 | 755 | if ((cbw.Flags & 0x80) != 0) { |
| okini3939 | 1:bb08a84162b7 | 756 | stallEndpoint(MSDBULK_IN); |
| okini3939 | 1:bb08a84162b7 | 757 | } else { |
| okini3939 | 1:bb08a84162b7 | 758 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 759 | } |
| okini3939 | 1:bb08a84162b7 | 760 | } |
| okini3939 | 1:bb08a84162b7 | 761 | |
| okini3939 | 1:bb08a84162b7 | 762 | csw.Status = CSW_PASSED; |
| okini3939 | 1:bb08a84162b7 | 763 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 764 | } |
| okini3939 | 1:bb08a84162b7 | 765 | |
| okini3939 | 1:bb08a84162b7 | 766 | |
| okini3939 | 1:bb08a84162b7 | 767 | void USBCDCMSC::memoryRead (void) { |
| okini3939 | 1:bb08a84162b7 | 768 | uint32_t n; |
| okini3939 | 1:bb08a84162b7 | 769 | |
| okini3939 | 1:bb08a84162b7 | 770 | n = (length > MAX_PACKET) ? MAX_PACKET : length; |
| okini3939 | 1:bb08a84162b7 | 771 | |
| okini3939 | 1:bb08a84162b7 | 772 | if ((addr + n) > MemorySize) { |
| okini3939 | 1:bb08a84162b7 | 773 | n = MemorySize - addr; |
| okini3939 | 1:bb08a84162b7 | 774 | stage = ERROR; |
| okini3939 | 1:bb08a84162b7 | 775 | } |
| okini3939 | 1:bb08a84162b7 | 776 | |
| okini3939 | 1:bb08a84162b7 | 777 | // we read an entire block |
| okini3939 | 1:bb08a84162b7 | 778 | if (!(addr%BlockSize)) |
| okini3939 | 1:bb08a84162b7 | 779 | disk_read((char *)page, addr/BlockSize); |
| okini3939 | 1:bb08a84162b7 | 780 | |
| okini3939 | 1:bb08a84162b7 | 781 | // write data which are in RAM |
| okini3939 | 1:bb08a84162b7 | 782 | writeNB(MSDBULK_IN, &page[addr%BlockSize], n, MAX_PACKET_SIZE_EPBULK); |
| okini3939 | 1:bb08a84162b7 | 783 | |
| okini3939 | 1:bb08a84162b7 | 784 | addr += n; |
| okini3939 | 1:bb08a84162b7 | 785 | length -= n; |
| okini3939 | 1:bb08a84162b7 | 786 | |
| okini3939 | 1:bb08a84162b7 | 787 | csw.DataResidue -= n; |
| okini3939 | 1:bb08a84162b7 | 788 | |
| okini3939 | 1:bb08a84162b7 | 789 | if ( !length || (stage != PROCESS_CBW)) { |
| okini3939 | 1:bb08a84162b7 | 790 | csw.Status = (stage == PROCESS_CBW) ? CSW_PASSED : CSW_FAILED; |
| okini3939 | 1:bb08a84162b7 | 791 | stage = (stage == PROCESS_CBW) ? SEND_CSW : stage; |
| okini3939 | 1:bb08a84162b7 | 792 | } |
| okini3939 | 1:bb08a84162b7 | 793 | } |
| okini3939 | 1:bb08a84162b7 | 794 | |
| okini3939 | 1:bb08a84162b7 | 795 | |
| okini3939 | 1:bb08a84162b7 | 796 | bool USBCDCMSC::infoTransfer (void) { |
| okini3939 | 1:bb08a84162b7 | 797 | uint32_t n; |
| okini3939 | 1:bb08a84162b7 | 798 | |
| okini3939 | 1:bb08a84162b7 | 799 | // Logical Block Address of First Block |
| okini3939 | 1:bb08a84162b7 | 800 | n = (cbw.CB[2] << 24) | (cbw.CB[3] << 16) | (cbw.CB[4] << 8) | (cbw.CB[5] << 0); |
| okini3939 | 1:bb08a84162b7 | 801 | |
| okini3939 | 1:bb08a84162b7 | 802 | addr = n * BlockSize; |
| okini3939 | 1:bb08a84162b7 | 803 | |
| okini3939 | 1:bb08a84162b7 | 804 | // Number of Blocks to transfer |
| okini3939 | 1:bb08a84162b7 | 805 | switch (cbw.CB[0]) { |
| okini3939 | 1:bb08a84162b7 | 806 | case READ10: |
| okini3939 | 1:bb08a84162b7 | 807 | case WRITE10: |
| okini3939 | 1:bb08a84162b7 | 808 | case VERIFY10: |
| okini3939 | 1:bb08a84162b7 | 809 | n = (cbw.CB[7] << 8) | (cbw.CB[8] << 0); |
| okini3939 | 1:bb08a84162b7 | 810 | break; |
| okini3939 | 1:bb08a84162b7 | 811 | |
| okini3939 | 1:bb08a84162b7 | 812 | case READ12: |
| okini3939 | 1:bb08a84162b7 | 813 | case WRITE12: |
| okini3939 | 1:bb08a84162b7 | 814 | n = (cbw.CB[6] << 24) | (cbw.CB[7] << 16) | (cbw.CB[8] << 8) | (cbw.CB[9] << 0); |
| okini3939 | 1:bb08a84162b7 | 815 | break; |
| okini3939 | 1:bb08a84162b7 | 816 | } |
| okini3939 | 1:bb08a84162b7 | 817 | |
| okini3939 | 1:bb08a84162b7 | 818 | length = n * BlockSize; |
| okini3939 | 1:bb08a84162b7 | 819 | |
| okini3939 | 1:bb08a84162b7 | 820 | if (!cbw.DataLength) { // host requests no data |
| okini3939 | 1:bb08a84162b7 | 821 | csw.Status = CSW_FAILED; |
| okini3939 | 1:bb08a84162b7 | 822 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 823 | return false; |
| okini3939 | 1:bb08a84162b7 | 824 | } |
| okini3939 | 1:bb08a84162b7 | 825 | |
| okini3939 | 1:bb08a84162b7 | 826 | if (cbw.DataLength != length) { |
| okini3939 | 1:bb08a84162b7 | 827 | if ((cbw.Flags & 0x80) != 0) { |
| okini3939 | 1:bb08a84162b7 | 828 | stallEndpoint(MSDBULK_IN); |
| okini3939 | 1:bb08a84162b7 | 829 | } else { |
| okini3939 | 1:bb08a84162b7 | 830 | stallEndpoint(MSDBULK_OUT); |
| okini3939 | 1:bb08a84162b7 | 831 | } |
| okini3939 | 1:bb08a84162b7 | 832 | |
| okini3939 | 1:bb08a84162b7 | 833 | csw.Status = CSW_FAILED; |
| okini3939 | 1:bb08a84162b7 | 834 | sendCSW(); |
| okini3939 | 1:bb08a84162b7 | 835 | return false; |
| okini3939 | 1:bb08a84162b7 | 836 | } |
| okini3939 | 1:bb08a84162b7 | 837 | |
| okini3939 | 1:bb08a84162b7 | 838 | return true; |
| okini3939 | 1:bb08a84162b7 | 839 | } |
| okini3939 | 1:bb08a84162b7 | 840 | |
| okini3939 | 1:bb08a84162b7 | 841 | int USBCDCMSC::disk_initialize() { |
| okini3939 | 1:bb08a84162b7 | 842 | if (_sd->disk_initialize()) { |
| okini3939 | 1:bb08a84162b7 | 843 | _status |= NO_DISK; |
| okini3939 | 1:bb08a84162b7 | 844 | return 1; |
| okini3939 | 1:bb08a84162b7 | 845 | } else { |
| okini3939 | 1:bb08a84162b7 | 846 | _status = DISK_OK; |
| okini3939 | 1:bb08a84162b7 | 847 | return 0; |
| okini3939 | 1:bb08a84162b7 | 848 | } |
| okini3939 | 1:bb08a84162b7 | 849 | } |
| okini3939 | 1:bb08a84162b7 | 850 | |
| okini3939 | 1:bb08a84162b7 | 851 | int USBCDCMSC::disk_write(const char *buffer, int block_number) { |
| okini3939 | 1:bb08a84162b7 | 852 | return _sd->disk_write(buffer, block_number); |
| okini3939 | 1:bb08a84162b7 | 853 | } |
| okini3939 | 1:bb08a84162b7 | 854 | |
| okini3939 | 1:bb08a84162b7 | 855 | int USBCDCMSC::disk_read(char *buffer, int block_number) { |
| okini3939 | 1:bb08a84162b7 | 856 | return _sd->disk_read(buffer, block_number); |
| okini3939 | 1:bb08a84162b7 | 857 | } |
| okini3939 | 1:bb08a84162b7 | 858 | |
| okini3939 | 1:bb08a84162b7 | 859 | int USBCDCMSC::disk_status() { |
| okini3939 | 1:bb08a84162b7 | 860 | return _status; |
| okini3939 | 1:bb08a84162b7 | 861 | } |
| okini3939 | 1:bb08a84162b7 | 862 | |
| okini3939 | 1:bb08a84162b7 | 863 | int USBCDCMSC::disk_sectors() { |
| okini3939 | 1:bb08a84162b7 | 864 | return _sd->disk_sectors(); |
| okini3939 | 1:bb08a84162b7 | 865 | } |
| okini3939 | 1:bb08a84162b7 | 866 | int USBCDCMSC::disk_size() { |
| okini3939 | 1:bb08a84162b7 | 867 | return _sd->disk_sectors() * 512; |
| okini3939 | 1:bb08a84162b7 | 868 | } |