avnish aggarwal / Mbed 2 deprecated USB-MSD_SD_HelloWorld_Mbed-RAMVersion

ram version see usbmsd_sd.cpp ram ok fs CANNOT be installed - too small use for illustrative purpose only

Dependencies:   USBDevice USBMSD_SD mbed

Fork of USBMSD_SD_HelloWorld_Mbed by Samuel Mokrani

USBDevice/USBSERIAL/USBCDC.cpp@11:a26e7b7a1221, 2011-11-16 (annotated)

Committer:
samux
Date:
Wed Nov 16 17:17:42 2011 +0000
Revision:
11:a26e7b7a1221
GOOD COMMIT: msd and hid work even on MAC...

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 11:a26e7b7a1221 1 /* Copyright (c) 2010-2011 mbed.org, MIT License
samux 11:a26e7b7a1221 2 *
samux 11:a26e7b7a1221 3 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software
samux 11:a26e7b7a1221 4 * and associated documentation files (the "Software"), to deal in the Software without
samux 11:a26e7b7a1221 5 * restriction, including without limitation the rights to use, copy, modify, merge, publish,
samux 11:a26e7b7a1221 6 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
samux 11:a26e7b7a1221 7 * Software is furnished to do so, subject to the following conditions:
samux 11:a26e7b7a1221 8 *
samux 11:a26e7b7a1221 9 * The above copyright notice and this permission notice shall be included in all copies or
samux 11:a26e7b7a1221 10 * substantial portions of the Software.
samux 11:a26e7b7a1221 11 *
samux 11:a26e7b7a1221 12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
samux 11:a26e7b7a1221 13 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
samux 11:a26e7b7a1221 14 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
samux 11:a26e7b7a1221 15 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
samux 11:a26e7b7a1221 16 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
samux 11:a26e7b7a1221 17 */
samux 11:a26e7b7a1221 18
samux 11:a26e7b7a1221 19 #include "stdint.h"
samux 11:a26e7b7a1221 20 #include "USBCDC.h"
samux 11:a26e7b7a1221 21 #include "USBBusInterface.h"
samux 11:a26e7b7a1221 22
samux 11:a26e7b7a1221 23 static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08};
samux 11:a26e7b7a1221 24
samux 11:a26e7b7a1221 25 #define DEFAULT_CONFIGURATION (1)
samux 11:a26e7b7a1221 26
samux 11:a26e7b7a1221 27 #define CDC_SET_LINE_CODING 0x20
samux 11:a26e7b7a1221 28 #define CDC_GET_LINE_CODING 0x21
samux 11:a26e7b7a1221 29 #define CDC_SET_CONTROL_LINE_STATE 0x22
samux 11:a26e7b7a1221 30
samux 11:a26e7b7a1221 31 #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK
samux 11:a26e7b7a1221 32
samux 11:a26e7b7a1221 33 USBCDC::USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) {
samux 11:a26e7b7a1221 34 USBDevice::connect();
samux 11:a26e7b7a1221 35 }
samux 11:a26e7b7a1221 36
samux 11:a26e7b7a1221 37 bool USBCDC::USBCallback_request(void) {
samux 11:a26e7b7a1221 38 /* Called in ISR context */
samux 11:a26e7b7a1221 39
samux 11:a26e7b7a1221 40 bool success = false;
samux 11:a26e7b7a1221 41 CONTROL_TRANSFER * transfer = getTransferPtr();
samux 11:a26e7b7a1221 42
samux 11:a26e7b7a1221 43 /* Process class-specific requests */
samux 11:a26e7b7a1221 44
samux 11:a26e7b7a1221 45 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
samux 11:a26e7b7a1221 46 switch (transfer->setup.bRequest) {
samux 11:a26e7b7a1221 47 case CDC_GET_LINE_CODING:
samux 11:a26e7b7a1221 48 transfer->remaining = 7;
samux 11:a26e7b7a1221 49 transfer->ptr = cdc_line_coding;
samux 11:a26e7b7a1221 50 transfer->direction = DEVICE_TO_HOST;
samux 11:a26e7b7a1221 51 success = true;
samux 11:a26e7b7a1221 52 break;
samux 11:a26e7b7a1221 53 case CDC_SET_LINE_CODING:
samux 11:a26e7b7a1221 54 transfer->remaining = 7;
samux 11:a26e7b7a1221 55 success = true;
samux 11:a26e7b7a1221 56 break;
samux 11:a26e7b7a1221 57 case CDC_SET_CONTROL_LINE_STATE:
samux 11:a26e7b7a1221 58 success = true;
samux 11:a26e7b7a1221 59 break;
samux 11:a26e7b7a1221 60 default:
samux 11:a26e7b7a1221 61 break;
samux 11:a26e7b7a1221 62 }
samux 11:a26e7b7a1221 63 }
samux 11:a26e7b7a1221 64
samux 11:a26e7b7a1221 65 return success;
samux 11:a26e7b7a1221 66 }
samux 11:a26e7b7a1221 67
samux 11:a26e7b7a1221 68
samux 11:a26e7b7a1221 69 // Called in ISR context
samux 11:a26e7b7a1221 70 // Set configuration. Return false if the
samux 11:a26e7b7a1221 71 // configuration is not supported.
samux 11:a26e7b7a1221 72 bool USBCDC::USBCallback_setConfiguration(uint8_t configuration) {
samux 11:a26e7b7a1221 73 if (configuration != DEFAULT_CONFIGURATION) {
samux 11:a26e7b7a1221 74 return false;
samux 11:a26e7b7a1221 75 }
samux 11:a26e7b7a1221 76
samux 11:a26e7b7a1221 77 // Configure endpoints > 0
samux 11:a26e7b7a1221 78 addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT);
samux 11:a26e7b7a1221 79 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK);
samux 11:a26e7b7a1221 80 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 11:a26e7b7a1221 81
samux 11:a26e7b7a1221 82 // We activate the endpoint to be able to recceive data
samux 11:a26e7b7a1221 83 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK);
samux 11:a26e7b7a1221 84 return true;
samux 11:a26e7b7a1221 85 }
samux 11:a26e7b7a1221 86
samux 11:a26e7b7a1221 87 bool USBCDC::send(uint8_t endpoint, uint8_t * buffer, uint16_t size) {
samux 11:a26e7b7a1221 88 return write(endpoint, buffer, size, MAX_CDC_REPORT_SIZE);
samux 11:a26e7b7a1221 89 }
samux 11:a26e7b7a1221 90
samux 11:a26e7b7a1221 91 bool USBCDC::read(uint8_t endpoint, uint8_t * buffer, uint16_t * size, uint16_t maxSize) {
samux 11:a26e7b7a1221 92 if (!USBDevice::read(endpoint, buffer, size, maxSize))
samux 11:a26e7b7a1221 93 return false;
samux 11:a26e7b7a1221 94 if (!readStart(endpoint, maxSize))
samux 11:a26e7b7a1221 95 return false;
samux 11:a26e7b7a1221 96 return true;
samux 11:a26e7b7a1221 97 }
samux 11:a26e7b7a1221 98
samux 11:a26e7b7a1221 99 bool USBCDC::readNB(uint8_t endpoint, uint8_t * buffer, uint16_t * size, uint16_t maxSize) {
samux 11:a26e7b7a1221 100 if (!USBDevice::readNB(endpoint, buffer, size, MAX_CDC_REPORT_SIZE))
samux 11:a26e7b7a1221 101 return false;
samux 11:a26e7b7a1221 102 if (!readStart(endpoint, MAX_CDC_REPORT_SIZE))
samux 11:a26e7b7a1221 103 return false;
samux 11:a26e7b7a1221 104 return true;
samux 11:a26e7b7a1221 105 }
samux 11:a26e7b7a1221 106
samux 11:a26e7b7a1221 107
samux 11:a26e7b7a1221 108 uint8_t * USBCDC::deviceDesc() {
samux 11:a26e7b7a1221 109 static uint8_t deviceDescriptor[] = {
samux 11:a26e7b7a1221 110 18, // bLength
samux 11:a26e7b7a1221 111 1, // bDescriptorType
samux 11:a26e7b7a1221 112 0x10, 0x01, // bcdUSB
samux 11:a26e7b7a1221 113 2, // bDeviceClass
samux 11:a26e7b7a1221 114 0, // bDeviceSubClass
samux 11:a26e7b7a1221 115 0, // bDeviceProtocol
samux 11:a26e7b7a1221 116 MAX_PACKET_SIZE_EP0, // bMaxPacketSize0
samux 11:a26e7b7a1221 117 LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor
samux 11:a26e7b7a1221 118 LSB(PRODUCT_ID), MSB(PRODUCT_ID),// idProduct
samux 11:a26e7b7a1221 119 0x00, 0x01, // bcdDevice
samux 11:a26e7b7a1221 120 1, // iManufacturer
samux 11:a26e7b7a1221 121 2, // iProduct
samux 11:a26e7b7a1221 122 3, // iSerialNumber
samux 11:a26e7b7a1221 123 1 // bNumConfigurations
samux 11:a26e7b7a1221 124 };
samux 11:a26e7b7a1221 125 return deviceDescriptor;
samux 11:a26e7b7a1221 126 }
samux 11:a26e7b7a1221 127
samux 11:a26e7b7a1221 128 uint8_t * USBCDC::stringIinterfaceDesc() {
samux 11:a26e7b7a1221 129 static uint8_t stringIinterfaceDescriptor[] = {
samux 11:a26e7b7a1221 130 0x08,
samux 11:a26e7b7a1221 131 STRING_DESCRIPTOR,
samux 11:a26e7b7a1221 132 'C',0,'D',0,'C',0,
samux 11:a26e7b7a1221 133 };
samux 11:a26e7b7a1221 134 return stringIinterfaceDescriptor;
samux 11:a26e7b7a1221 135 }
samux 11:a26e7b7a1221 136
samux 11:a26e7b7a1221 137 uint8_t * USBCDC::stringIproductDesc() {
samux 11:a26e7b7a1221 138 static uint8_t stringIproductDescriptor[] = {
samux 11:a26e7b7a1221 139 0x16,
samux 11:a26e7b7a1221 140 STRING_DESCRIPTOR,
samux 11:a26e7b7a1221 141 'C',0,'D',0,'C',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0
samux 11:a26e7b7a1221 142 };
samux 11:a26e7b7a1221 143 return stringIproductDescriptor;
samux 11:a26e7b7a1221 144 }
samux 11:a26e7b7a1221 145
samux 11:a26e7b7a1221 146
samux 11:a26e7b7a1221 147 #define CONFIG1_DESC_SIZE (9+9+5+5+4+5+7+9+7+7)
samux 11:a26e7b7a1221 148
samux 11:a26e7b7a1221 149 uint8_t * USBCDC::configurationDesc() {
samux 11:a26e7b7a1221 150 static uint8_t configDescriptor[] = {
samux 11:a26e7b7a1221 151 9, // bLength;
samux 11:a26e7b7a1221 152 2, // bDescriptorType;
samux 11:a26e7b7a1221 153 LSB(CONFIG1_DESC_SIZE), // wTotalLength
samux 11:a26e7b7a1221 154 MSB(CONFIG1_DESC_SIZE),
samux 11:a26e7b7a1221 155 2, // bNumInterfaces
samux 11:a26e7b7a1221 156 1, // bConfigurationValue
samux 11:a26e7b7a1221 157 0, // iConfiguration
samux 11:a26e7b7a1221 158 0x80, // bmAttributes
samux 11:a26e7b7a1221 159 50, // bMaxPower
samux 11:a26e7b7a1221 160
samux 11:a26e7b7a1221 161 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
samux 11:a26e7b7a1221 162 9, // bLength
samux 11:a26e7b7a1221 163 4, // bDescriptorType
samux 11:a26e7b7a1221 164 0, // bInterfaceNumber
samux 11:a26e7b7a1221 165 0, // bAlternateSetting
samux 11:a26e7b7a1221 166 1, // bNumEndpoints
samux 11:a26e7b7a1221 167 0x02, // bInterfaceClass
samux 11:a26e7b7a1221 168 0x02, // bInterfaceSubClass
samux 11:a26e7b7a1221 169 0x01, // bInterfaceProtocol
samux 11:a26e7b7a1221 170 0, // iInterface
samux 11:a26e7b7a1221 171
samux 11:a26e7b7a1221 172 // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26
samux 11:a26e7b7a1221 173 5, // bFunctionLength
samux 11:a26e7b7a1221 174 0x24, // bDescriptorType
samux 11:a26e7b7a1221 175 0x00, // bDescriptorSubtype
samux 11:a26e7b7a1221 176 0x10, 0x01, // bcdCDC
samux 11:a26e7b7a1221 177
samux 11:a26e7b7a1221 178 // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27
samux 11:a26e7b7a1221 179 5, // bFunctionLength
samux 11:a26e7b7a1221 180 0x24, // bDescriptorType
samux 11:a26e7b7a1221 181 0x01, // bDescriptorSubtype
samux 11:a26e7b7a1221 182 0x03, // bmCapabilities
samux 11:a26e7b7a1221 183 1, // bDataInterface
samux 11:a26e7b7a1221 184
samux 11:a26e7b7a1221 185 // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28
samux 11:a26e7b7a1221 186 4, // bFunctionLength
samux 11:a26e7b7a1221 187 0x24, // bDescriptorType
samux 11:a26e7b7a1221 188 0x02, // bDescriptorSubtype
samux 11:a26e7b7a1221 189 0x06, // bmCapabilities
samux 11:a26e7b7a1221 190
samux 11:a26e7b7a1221 191 // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33
samux 11:a26e7b7a1221 192 5, // bFunctionLength
samux 11:a26e7b7a1221 193 0x24, // bDescriptorType
samux 11:a26e7b7a1221 194 0x06, // bDescriptorSubtype
samux 11:a26e7b7a1221 195 0, // bMasterInterface
samux 11:a26e7b7a1221 196 1, // bSlaveInterface0
samux 11:a26e7b7a1221 197
samux 11:a26e7b7a1221 198 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 11:a26e7b7a1221 199 ENDPOINT_DESCRIPTOR_LENGTH, // bLength
samux 11:a26e7b7a1221 200 ENDPOINT_DESCRIPTOR, // bDescriptorType
samux 11:a26e7b7a1221 201 PHY_TO_DESC(EPINT_IN), // bEndpointAddress
samux 11:a26e7b7a1221 202 E_INTERRUPT, // bmAttributes (0x03=intr)
samux 11:a26e7b7a1221 203 LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
samux 11:a26e7b7a1221 204 MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
samux 11:a26e7b7a1221 205 16, // bInterval
samux 11:a26e7b7a1221 206
samux 11:a26e7b7a1221 207
samux 11:a26e7b7a1221 208
samux 11:a26e7b7a1221 209
samux 11:a26e7b7a1221 210 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12
samux 11:a26e7b7a1221 211 9, // bLength
samux 11:a26e7b7a1221 212 4, // bDescriptorType
samux 11:a26e7b7a1221 213 1, // bInterfaceNumber
samux 11:a26e7b7a1221 214 0, // bAlternateSetting
samux 11:a26e7b7a1221 215 2, // bNumEndpoints
samux 11:a26e7b7a1221 216 0x0A, // bInterfaceClass
samux 11:a26e7b7a1221 217 0x00, // bInterfaceSubClass
samux 11:a26e7b7a1221 218 0x00, // bInterfaceProtocol
samux 11:a26e7b7a1221 219 0, // iInterface
samux 11:a26e7b7a1221 220
samux 11:a26e7b7a1221 221 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 11:a26e7b7a1221 222 7, // bLength
samux 11:a26e7b7a1221 223 5, // bDescriptorType
samux 11:a26e7b7a1221 224 PHY_TO_DESC(EPBULK_IN), // bEndpointAddress
samux 11:a26e7b7a1221 225 0x02, // bmAttributes (0x02=bulk)
samux 11:a26e7b7a1221 226 LSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (LSB)
samux 11:a26e7b7a1221 227 MSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (MSB)
samux 11:a26e7b7a1221 228 0, // bInterval
samux 11:a26e7b7a1221 229
samux 11:a26e7b7a1221 230 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13
samux 11:a26e7b7a1221 231 7, // bLength
samux 11:a26e7b7a1221 232 5, // bDescriptorType
samux 11:a26e7b7a1221 233 PHY_TO_DESC(EPBULK_OUT),// bEndpointAddress
samux 11:a26e7b7a1221 234 0x02, // bmAttributes (0x02=bulk)
samux 11:a26e7b7a1221 235 LSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (LSB)
samux 11:a26e7b7a1221 236 MSB(MAX_PACKET_SIZE_EPBULK), // wMaxPacketSize (MSB)
samux 11:a26e7b7a1221 237 0 // bInterval
samux 11:a26e7b7a1221 238 };
samux 11:a26e7b7a1221 239 return configDescriptor;
samux 11:a26e7b7a1221 240 }