Konstantin Kochin / USBDevice

USBDevice library with Blue Pill STM32F103C8T6 board support.

Dependents:   STM32F103C8T6_USBSerial_Demo lightweight-weather-station

Fork of USBDevice by mbed official

USBSerial/USBCDC.cpp@73:da92595e61da, 2017-08-04 (annotated)

Committer:
Konstantin Kochin
Date:
Fri Aug 04 11:17:37 2017 +0300
Revision:
73:da92595e61da
Parent:
72:f9f7fd5440e1 
Added support of the BLUEPILL_F103C8 board



Added files of the BLUEPILL_F103C8 board, based on the

copy of the NUCLEO_F103RB

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 1:80ab0d068708 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 1:80ab0d068708 2 *
samux 1:80ab0d068708 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 1:80ab0d068708 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 1:80ab0d068708 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 1:80ab0d068708 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 1:80ab0d068708 7 * Software is furnished to do so, subject to the following conditions:
samux 1:80ab0d068708 8 *
samux 1:80ab0d068708 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 1:80ab0d068708 10 * substantial portions of the Software.
samux 1:80ab0d068708 11 *
samux 1:80ab0d068708 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 1:80ab0d068708 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 1:80ab0d068708 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 1:80ab0d068708 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 1:80ab0d068708 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 1:80ab0d068708 17 */
samux 1:80ab0d068708 18
samux 1:80ab0d068708 19 #include "stdint.h"
samux 1:80ab0d068708 20 #include "USBCDC.h"
samux 1:80ab0d068708 21
samux 1:80ab0d068708 22 static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08};
samux 1:80ab0d068708 23
samux 1:80ab0d068708 24 #define DEFAULT_CONFIGURATION (1)
samux 1:80ab0d068708 25
samux 1:80ab0d068708 26 #define CDC_SET_LINE_CODING 0x20
samux 1:80ab0d068708 27 #define CDC_GET_LINE_CODING 0x21
samux 1:80ab0d068708 28 #define CDC_SET_CONTROL_LINE_STATE 0x22
samux 1:80ab0d068708 29
mbed_official 44:d2638fcd76d9 30 // Control Line State bits
mbed_official 44:d2638fcd76d9 31 #define CLS_DTR (1 << 0)
mbed_official 44:d2638fcd76d9 32 #define CLS_RTS (1 << 1)
mbed_official 44:d2638fcd76d9 33
samux 1:80ab0d068708 34 #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK
samux 1:80ab0d068708 35
mbed_official 19:fcb63a105965 36 USBCDC::USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release, bool connect_blocking): USBDevice(vendor_id, product_id, product_release) {
samux 6:d0945750af57 37 terminal_connected = false;
Konstantin Kochin 72:f9f7fd5440e1 38 // hack: static local variables shouldn't be initialized during interrupt,
Konstantin Kochin 72:f9f7fd5440e1 39 // so we simply invoke deviceDesc to initialize deviceDescriptor right now
Konstantin Kochin 72:f9f7fd5440e1 40 deviceDesc();
mbed_official 19:fcb63a105965 41 USBDevice::connect(connect_blocking);
samux 1:80ab0d068708 42 }
samux 1:80ab0d068708 43
Kojto 70:2c525a50f1b6 44 void USBCDC::USBCallback_busReset(void) {
Kojto 70:2c525a50f1b6 45 terminal_connected = false;
Kojto 70:2c525a50f1b6 46 };
Kojto 70:2c525a50f1b6 47
samux 1:80ab0d068708 48 bool USBCDC::USBCallback_request(void) {
samux 1:80ab0d068708 49 /* Called in ISR context */
samux 1:80ab0d068708 50
samux 1:80ab0d068708 51 bool success = false;
samux 1:80ab0d068708 52 CONTROL_TRANSFER * transfer = getTransferPtr();
samux 1:80ab0d068708 53
samux 1:80ab0d068708 54 /* Process class-specific requests */
samux 1:80ab0d068708 55
samux 1:80ab0d068708 56 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
samux 1:80ab0d068708 57 switch (transfer->setup.bRequest) {
samux 1:80ab0d068708 58 case CDC_GET_LINE_CODING:
samux 1:80ab0d068708 59 transfer->remaining = 7;
samux 1:80ab0d068708 60 transfer->ptr = cdc_line_coding;
samux 1:80ab0d068708 61 transfer->direction = DEVICE_TO_HOST;
samux 1:80ab0d068708 62 success = true;
samux 1:80ab0d068708 63 break;
samux 1:80ab0d068708 64 case CDC_SET_LINE_CODING:
samux 1:80ab0d068708 65 transfer->remaining = 7;
mbed_official 15:849c0c0f2769 66 transfer->notify = true;
samux 1:80ab0d068708 67 success = true;
samux 1:80ab0d068708 68 break;
samux 1:80ab0d068708 69 case CDC_SET_CONTROL_LINE_STATE:
mbed_official 44:d2638fcd76d9 70 if (transfer->setup.wValue & CLS_DTR) {
mbed_official 44:d2638fcd76d9 71 terminal_connected = true;
mbed_official 44:d2638fcd76d9 72 } else {
mbed_official 44:d2638fcd76d9 73 terminal_connected = false;
mbed_official 44:d2638fcd76d9 74 }
samux 1:80ab0d068708 75 success = true;
samux 1:80ab0d068708 76 break;
samux 1:80ab0d068708 77 default:
samux 1:80ab0d068708 78 break;
samux 1:80ab0d068708 79 }
samux 1:80ab0d068708 80 }
samux 1:80ab0d068708 81
samux 1:80ab0d068708 82 return success;
samux 1:80ab0d068708 83 }
samux 1:80ab0d068708 84
mbed_official 15:849c0c0f2769 85 void USBCDC::USBCallback_requestCompleted(uint8_t *buf, uint32_t length) {
mbed_official 15:849c0c0f2769 86 // Request of setting line coding has 7 bytes
mbed_official 15:849c0c0f2769 87 if (length != 7) {
mbed_official 15:849c0c0f2769 88 return;
mbed_official 15:849c0c0f2769 89 }
mbed_official 25:7c72828865f3 90
mbed_official 15:849c0c0f2769 91 CONTROL_TRANSFER * transfer = getTransferPtr();
mbed_official 25:7c72828865f3 92
mbed_official 15:849c0c0f2769 93 /* Process class-specific requests */
mbed_official 15:849c0c0f2769 94 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
mbed_official 15:849c0c0f2769 95 if (transfer->setup.bRequest == CDC_SET_LINE_CODING) {
mbed_official 15:849c0c0f2769 96 if (memcmp(cdc_line_coding, buf, 7)) {
mbed_official 25:7c72828865f3 97 memcpy(cdc_line_coding, buf, 7);
mbed_official 25:7c72828865f3 98
mbed_official 15:849c0c0f2769 99 int baud = buf[0] + (buf[1] << 8)
mbed_official 15:849c0c0f2769 100 + (buf[2] << 16) + (buf[3] << 24);
mbed_official 15:849c0c0f2769 101 int stop = buf[4];
mbed_official 15:849c0c0f2769 102 int bits = buf[6];
mbed_official 15:849c0c0f2769 103 int parity = buf[5];
mbed_official 15:849c0c0f2769 104
mbed_official 15:849c0c0f2769 105 lineCodingChanged(baud, bits, parity, stop);
mbed_official 15:849c0c0f2769 106 }
mbed_official 15:849c0c0f2769 107 }
mbed_official 15:849c0c0f2769 108 }
mbed_official 15:849c0c0f2769 109 }
samux 1:80ab0d068708 110
samux 1:80ab0d068708 111 // Called in ISR context
samux 1:80ab0d068708 112 // Set configuration. Return false if the
samux 1:80ab0d068708 113 // configuration is not supported.
samux 1:80ab0d068708 114 bool USBCDC::USBCallback_setConfiguration(uint8_t configuration) {
samux 1:80ab0d068708 115 if (configuration != DEFAULT_CONFIGURATION) {
samux 1:80ab0d068708 116 return false;
samux 1:80ab0d068708 117 }
samux 1:80ab0d068708 118
samux 1:80ab0d068708 119 // Configure endpoints > 0
samux 1:80ab0d068708 120 addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT);
samux 1:80ab0d068708 121 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 122 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 123
samux 1:80ab0d068708 124 // We activate the endpoint to be able to recceive data
samux 1:80ab0d068708 125 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 1:80ab0d068708 126 return true;
samux 1:80ab0d068708 127 }
samux 1:80ab0d068708 128
samux 1:80ab0d068708 129 bool USBCDC::send(uint8_t * buffer, uint32_t size) {
samux 1:80ab0d068708 130 return USBDevice::write(EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE);
samux 1:80ab0d068708 131 }
samux 1:80ab0d068708 132
samux 1:80ab0d068708 133 bool USBCDC::readEP(uint8_t * buffer, uint32_t * size) {
samux 1:80ab0d068708 134 if (!USBDevice::readEP(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
samux 1:80ab0d068708 135 return false;
samux 1:80ab0d068708 136 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE))
samux 1:80ab0d068708 137 return false;
samux 1:80ab0d068708 138 return true;
samux 1:80ab0d068708 139 }
samux 1:80ab0d068708 140
samux 1:80ab0d068708 141 bool USBCDC::readEP_NB(uint8_t * buffer, uint32_t * size) {
samux 1:80ab0d068708 142 if (!USBDevice::readEP_NB(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE))
samux 1:80ab0d068708 143 return false;
samux 1:80ab0d068708 144 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE))
samux 1:80ab0d068708 145 return false;
samux 1:80ab0d068708 146 return true;
samux 1:80ab0d068708 147 }
samux 1:80ab0d068708 148
samux 1:80ab0d068708 149
samux 1:80ab0d068708 150 uint8_t * USBCDC::deviceDesc() {
samux 1:80ab0d068708 151 static uint8_t deviceDescriptor[] = {
samux 1:80ab0d068708 152 18, // bLength
samux 1:80ab0d068708 153 1, // bDescriptorType
samux 1:80ab0d068708 154 0x10, 0x01, // bcdUSB
samux 1:80ab0d068708 155 2, // bDeviceClass
samux 1:80ab0d068708 156 0, // bDeviceSubClass
samux 1:80ab0d068708 157 0, // bDeviceProtocol
samux 1:80ab0d068708 158 MAX_PACKET_SIZE_EP0, // bMaxPacketSize0
bogdanm 11:eeb3cbbaa996 159 (uint8_t)(LSB(VENDOR_ID)), (uint8_t)(MSB(VENDOR_ID)), // idVendor
bogdanm 11:eeb3cbbaa996 160 (uint8_t)(LSB(PRODUCT_ID)), (uint8_t)(MSB(PRODUCT_ID)),// idProduct
samux 1:80ab0d068708 161 0x00, 0x01, // bcdDevice
samux 1:80ab0d068708 162 1, // iManufacturer
samux 1:80ab0d068708 163 2, // iProduct
samux 1:80ab0d068708 164 3, // iSerialNumber
samux 1:80ab0d068708 165 1 // bNumConfigurations
samux 1:80ab0d068708 166 };
samux 1:80ab0d068708 167 return deviceDescriptor;
samux 1:80ab0d068708 168 }
samux 1:80ab0d068708 169
samux 1:80ab0d068708 170 uint8_t * USBCDC::stringIinterfaceDesc() {
samux 1:80ab0d068708 171 static uint8_t stringIinterfaceDescriptor[] = {
samux 1:80ab0d068708 172 0x08,
samux 1:80ab0d068708 173 STRING_DESCRIPTOR,
samux 1:80ab0d068708 174 'C',0,'D',0,'C',0,
samux 1:80ab0d068708 175 };
samux 1:80ab0d068708 176 return stringIinterfaceDescriptor;
samux 1:80ab0d068708 177 }
samux 1:80ab0d068708 178
samux 1:80ab0d068708 179 uint8_t * USBCDC::stringIproductDesc() {
samux 1:80ab0d068708 180 static uint8_t stringIproductDescriptor[] = {
samux 1:80ab0d068708 181 0x16,
samux 1:80ab0d068708 182 STRING_DESCRIPTOR,
samux 1:80ab0d068708 183 'C',0,'D',0,'C',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0
samux 1:80ab0d068708 184 };
samux 1:80ab0d068708 185 return stringIproductDescriptor;
samux 1:80ab0d068708 186 }
samux 1:80ab0d068708 187
samux 1:80ab0d068708 188
samux 8:335f2506f422 189 #define CONFIG1_DESC_SIZE (9+8+9+5+5+4+5+7+9+7+7)
samux 1:80ab0d068708 190
samux 1:80ab0d068708 191 uint8_t * USBCDC::configurationDesc() {
samux 1:80ab0d068708 192 static uint8_t configDescriptor[] = {
samux 8:335f2506f422 193 // configuration descriptor
samux 8:335f2506f422 194 9, // bLength
samux 8:335f2506f422 195 2, // bDescriptorType
samux 1:80ab0d068708 196 LSB(CONFIG1_DESC_SIZE), // wTotalLength
samux 1:80ab0d068708 197 MSB(CONFIG1_DESC_SIZE),
samux 1:80ab0d068708 198 2, // bNumInterfaces
samux 1:80ab0d068708 199 1, // bConfigurationValue
samux 1:80ab0d068708 200 0, // iConfiguration
samux 1:80ab0d068708 201 0x80, // bmAttributes
samux 1:80ab0d068708 202 50, // bMaxPower
mbed_official 25:7c72828865f3 203
samux 8:335f2506f422 204 // IAD to associate the two CDC interfaces
samux 8:335f2506f422 205 0x08, // bLength
samux 8:335f2506f422 206 0x0b, // bDescriptorType
samux 8:335f2506f422 207 0x00, // bFirstInterface
samux 8:335f2506f422 208 0x02, // bInterfaceCount
samux 8:335f2506f422 209 0x02, // bFunctionClass
samux 8:335f2506f422 210 0x02, // bFunctionSubClass
samux 8:335f2506f422 211 0, // bFunctionProtocol
samux 8:335f2506f422 212 0, // iFunction
samux 1:80ab0d068708 213
samux 1:80ab0d068708 214 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
samux 1:80ab0d068708 215 9, // bLength
samux 1:80ab0d068708 216 4, // bDescriptorType
samux 1:80ab0d068708 217 0, // bInterfaceNumber
samux 1:80ab0d068708 218 0, // bAlternateSetting
samux 1:80ab0d068708 219 1, // bNumEndpoints
samux 1:80ab0d068708 220 0x02, // bInterfaceClass
samux 1:80ab0d068708 221 0x02, // bInterfaceSubClass
samux 1:80ab0d068708 222 0x01, // bInterfaceProtocol
samux 1:80ab0d068708 223 0, // iInterface
samux 1:80ab0d068708 224
samux 1:80ab0d068708 225 // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
samux 1:80ab0d068708 226 5, // bFunctionLength
samux 1:80ab0d068708 227 0x24, // bDescriptorType
samux 1:80ab0d068708 228 0x00, // bDescriptorSubtype
samux 1:80ab0d068708 229 0x10, 0x01, // bcdCDC
samux 1:80ab0d068708 230
samux 1:80ab0d068708 231 // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
samux 1:80ab0d068708 232 5, // bFunctionLength
samux 1:80ab0d068708 233 0x24, // bDescriptorType
samux 1:80ab0d068708 234 0x01, // bDescriptorSubtype
samux 1:80ab0d068708 235 0x03, // bmCapabilities
samux 1:80ab0d068708 236 1, // bDataInterface
samux 1:80ab0d068708 237
samux 1:80ab0d068708 238 // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
samux 1:80ab0d068708 239 4, // bFunctionLength
samux 1:80ab0d068708 240 0x24, // bDescriptorType
samux 1:80ab0d068708 241 0x02, // bDescriptorSubtype
samux 1:80ab0d068708 242 0x06, // bmCapabilities
samux 1:80ab0d068708 243
samux 1:80ab0d068708 244 // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
samux 1:80ab0d068708 245 5, // bFunctionLength
samux 1:80ab0d068708 246 0x24, // bDescriptorType
samux 1:80ab0d068708 247 0x06, // bDescriptorSubtype
samux 1:80ab0d068708 248 0, // bMasterInterface
samux 1:80ab0d068708 249 1, // bSlaveInterface0
samux 1:80ab0d068708 250
samux 1:80ab0d068708 251 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 1:80ab0d068708 252 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
samux 1:80ab0d068708 253 ENDPOINT_DESCRIPTOR, // bDescriptorType
samux 1:80ab0d068708 254 PHY_TO_DESC(EPINT_IN), // bEndpointAddress
samux 1:80ab0d068708 255 E_INTERRUPT, // bmAttributes (0x03=intr)
samux 1:80ab0d068708 256 LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
samux 1:80ab0d068708 257 MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
samux 1:80ab0d068708 258 16, // bInterval
samux 1:80ab0d068708 259
samux 1:80ab0d068708 260
samux 1:80ab0d068708 261
samux 1:80ab0d068708 262
samux 1:80ab0d068708 263 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
samux 8:335f2506f422 264 9, // bLength
samux 8:335f2506f422 265 4, // bDescriptorType
samux 8:335f2506f422 266 1, // bInterfaceNumber
samux 8:335f2506f422 267 0, // bAlternateSetting
samux 8:335f2506f422 268 2, // bNumEndpoints
samux 8:335f2506f422 269 0x0A, // bInterfaceClass
samux 8:335f2506f422 270 0x00, // bInterfaceSubClass
samux 8:335f2506f422 271 0x00, // bInterfaceProtocol
samux 8:335f2506f422 272 0, // iInterface
samux 1:80ab0d068708 273
samux 1:80ab0d068708 274 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 8:335f2506f422 275 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
samux 8:335f2506f422 276 ENDPOINT_DESCRIPTOR, // bDescriptorType
samux 8:335f2506f422 277 PHY_TO_DESC(EPBULK_IN), // bEndpointAddress
samux 8:335f2506f422 278 E_BULK, // bmAttributes (0x02=bulk)
samux 8:335f2506f422 279 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
samux 8:335f2506f422 280 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
samux 8:335f2506f422 281 0, // bInterval
samux 1:80ab0d068708 282
samux 1:80ab0d068708 283 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 8:335f2506f422 284 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
samux 8:335f2506f422 285 ENDPOINT_DESCRIPTOR, // bDescriptorType
samux 8:335f2506f422 286 PHY_TO_DESC(EPBULK_OUT), // bEndpointAddress
samux 8:335f2506f422 287 E_BULK, // bmAttributes (0x02=bulk)
samux 8:335f2506f422 288 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB)
samux 8:335f2506f422 289 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB)
samux 8:335f2506f422 290 0 // bInterval
samux 1:80ab0d068708 291 };
samux 1:80ab0d068708 292 return configDescriptor;
samux 1:80ab0d068708 293 }