キーボードの長押しに対応。
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USBCDC.cpp
00001 /* Copyright (c) 2010-2011 mbed.org, MIT License 00002 * 00003 * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 00004 * and associated documentation files (the "Software"), to deal in the Software without 00005 * restriction, including without limitation the rights to use, copy, modify, merge, publish, 00006 * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the 00007 * Software is furnished to do so, subject to the following conditions: 00008 * 00009 * The above copyright notice and this permission notice shall be included in all copies or 00010 * substantial portions of the Software. 00011 * 00012 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 00013 * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 00014 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 00015 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00016 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00017 */ 00018 00019 #include "stdint.h" 00020 #include "USBCDC.h" 00021 00022 static uint8_t cdc_line_coding[7]= {0x80, 0x25, 0x00, 0x00, 0x00, 0x00, 0x08}; 00023 00024 #define DEFAULT_CONFIGURATION (1) 00025 00026 #define CDC_SET_LINE_CODING 0x20 00027 #define CDC_GET_LINE_CODING 0x21 00028 #define CDC_SET_CONTROL_LINE_STATE 0x22 00029 00030 #define MAX_CDC_REPORT_SIZE MAX_PACKET_SIZE_EPBULK 00031 00032 USBCDC::USBCDC(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) { 00033 terminal_connected = false; 00034 USBDevice::connect(); 00035 } 00036 00037 bool USBCDC::USBCallback_request(void) { 00038 /* Called in ISR context */ 00039 00040 bool success = false; 00041 CONTROL_TRANSFER * transfer = getTransferPtr(); 00042 00043 /* Process class-specific requests */ 00044 00045 if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { 00046 switch (transfer->setup.bRequest) { 00047 case CDC_GET_LINE_CODING: 00048 transfer->remaining = 7; 00049 transfer->ptr = cdc_line_coding; 00050 transfer->direction = DEVICE_TO_HOST; 00051 success = true; 00052 break; 00053 case CDC_SET_LINE_CODING: 00054 transfer->remaining = 7; 00055 success = true; 00056 terminal_connected = true; 00057 break; 00058 case CDC_SET_CONTROL_LINE_STATE: 00059 terminal_connected = false; 00060 success = true; 00061 break; 00062 default: 00063 break; 00064 } 00065 } 00066 00067 return success; 00068 } 00069 00070 00071 // Called in ISR context 00072 // Set configuration. Return false if the 00073 // configuration is not supported. 00074 bool USBCDC::USBCallback_setConfiguration(uint8_t configuration) { 00075 if (configuration != DEFAULT_CONFIGURATION) { 00076 return false; 00077 } 00078 00079 // Configure endpoints > 0 00080 addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT); 00081 addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK); 00082 addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); 00083 00084 // We activate the endpoint to be able to recceive data 00085 readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); 00086 return true; 00087 } 00088 00089 bool USBCDC::send(uint8_t * buffer, uint32_t size) { 00090 return USBDevice::write(EPBULK_IN, buffer, size, MAX_CDC_REPORT_SIZE); 00091 } 00092 00093 bool USBCDC::readEP(uint8_t * buffer, uint32_t * size) { 00094 if (!USBDevice::readEP(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) 00095 return false; 00096 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE)) 00097 return false; 00098 return true; 00099 } 00100 00101 bool USBCDC::readEP_NB(uint8_t * buffer, uint32_t * size) { 00102 if (!USBDevice::readEP_NB(EPBULK_OUT, buffer, size, MAX_CDC_REPORT_SIZE)) 00103 return false; 00104 if (!readStart(EPBULK_OUT, MAX_CDC_REPORT_SIZE)) 00105 return false; 00106 return true; 00107 } 00108 00109 00110 uint8_t * USBCDC::deviceDesc() { 00111 static uint8_t deviceDescriptor[] = { 00112 18, // bLength 00113 1, // bDescriptorType 00114 0x10, 0x01, // bcdUSB 00115 2, // bDeviceClass 00116 0, // bDeviceSubClass 00117 0, // bDeviceProtocol 00118 MAX_PACKET_SIZE_EP0, // bMaxPacketSize0 00119 LSB(VENDOR_ID), MSB(VENDOR_ID), // idVendor 00120 LSB(PRODUCT_ID), MSB(PRODUCT_ID),// idProduct 00121 0x00, 0x01, // bcdDevice 00122 1, // iManufacturer 00123 2, // iProduct 00124 3, // iSerialNumber 00125 1 // bNumConfigurations 00126 }; 00127 return deviceDescriptor; 00128 } 00129 00130 uint8_t * USBCDC::stringIinterfaceDesc() { 00131 static uint8_t stringIinterfaceDescriptor[] = { 00132 0x08, 00133 STRING_DESCRIPTOR, 00134 'C',0,'D',0,'C',0, 00135 }; 00136 return stringIinterfaceDescriptor; 00137 } 00138 00139 uint8_t * USBCDC::stringIproductDesc() { 00140 static uint8_t stringIproductDescriptor[] = { 00141 0x16, 00142 STRING_DESCRIPTOR, 00143 'C',0,'D',0,'C',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0 00144 }; 00145 return stringIproductDescriptor; 00146 } 00147 00148 00149 #define CONFIG1_DESC_SIZE (9+8+9+5+5+4+5+7+9+7+7) 00150 00151 uint8_t * USBCDC::configurationDesc() { 00152 static uint8_t configDescriptor[] = { 00153 // configuration descriptor 00154 9, // bLength 00155 2, // bDescriptorType 00156 LSB(CONFIG1_DESC_SIZE), // wTotalLength 00157 MSB(CONFIG1_DESC_SIZE), 00158 2, // bNumInterfaces 00159 1, // bConfigurationValue 00160 0, // iConfiguration 00161 0x80, // bmAttributes 00162 50, // bMaxPower 00163 00164 // IAD to associate the two CDC interfaces 00165 0x08, // bLength 00166 0x0b, // bDescriptorType 00167 0x00, // bFirstInterface 00168 0x02, // bInterfaceCount 00169 0x02, // bFunctionClass 00170 0x02, // bFunctionSubClass 00171 0, // bFunctionProtocol 00172 0, // iFunction 00173 00174 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 00175 9, // bLength 00176 4, // bDescriptorType 00177 0, // bInterfaceNumber 00178 0, // bAlternateSetting 00179 1, // bNumEndpoints 00180 0x02, // bInterfaceClass 00181 0x02, // bInterfaceSubClass 00182 0x01, // bInterfaceProtocol 00183 0, // iInterface 00184 00185 // CDC Header Functional Descriptor, CDC Spec 5.2.3.1, Table 26 00186 5, // bFunctionLength 00187 0x24, // bDescriptorType 00188 0x00, // bDescriptorSubtype 00189 0x10, 0x01, // bcdCDC 00190 00191 // Call Management Functional Descriptor, CDC Spec 5.2.3.2, Table 27 00192 5, // bFunctionLength 00193 0x24, // bDescriptorType 00194 0x01, // bDescriptorSubtype 00195 0x03, // bmCapabilities 00196 1, // bDataInterface 00197 00198 // Abstract Control Management Functional Descriptor, CDC Spec 5.2.3.3, Table 28 00199 4, // bFunctionLength 00200 0x24, // bDescriptorType 00201 0x02, // bDescriptorSubtype 00202 0x06, // bmCapabilities 00203 00204 // Union Functional Descriptor, CDC Spec 5.2.3.8, Table 33 00205 5, // bFunctionLength 00206 0x24, // bDescriptorType 00207 0x06, // bDescriptorSubtype 00208 0, // bMasterInterface 00209 1, // bSlaveInterface0 00210 00211 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 00212 ENDPOINT_DESCRIPTOR_LENGTH, // bLength 00213 ENDPOINT_DESCRIPTOR, // bDescriptorType 00214 PHY_TO_DESC(EPINT_IN), // bEndpointAddress 00215 E_INTERRUPT, // bmAttributes (0x03=intr) 00216 LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB) 00217 MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB) 00218 16, // bInterval 00219 00220 00221 00222 00223 // interface descriptor, USB spec 9.6.5, page 267-269, Table 9-12 00224 9, // bLength 00225 4, // bDescriptorType 00226 1, // bInterfaceNumber 00227 0, // bAlternateSetting 00228 2, // bNumEndpoints 00229 0x0A, // bInterfaceClass 00230 0x00, // bInterfaceSubClass 00231 0x00, // bInterfaceProtocol 00232 0, // iInterface 00233 00234 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 00235 ENDPOINT_DESCRIPTOR_LENGTH, // bLength 00236 ENDPOINT_DESCRIPTOR, // bDescriptorType 00237 PHY_TO_DESC(EPBULK_IN), // bEndpointAddress 00238 E_BULK, // bmAttributes (0x02=bulk) 00239 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) 00240 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) 00241 0, // bInterval 00242 00243 // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 00244 ENDPOINT_DESCRIPTOR_LENGTH, // bLength 00245 ENDPOINT_DESCRIPTOR, // bDescriptorType 00246 PHY_TO_DESC(EPBULK_OUT), // bEndpointAddress 00247 E_BULK, // bmAttributes (0x02=bulk) 00248 LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) 00249 MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) 00250 0 // bInterval 00251 }; 00252 return configDescriptor; 00253 }
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