USB CDC (serial) and USB MSC (strage) Composite Device. http://mbed.org/users/okini3939/notebook/USB_Device/
Dependencies: ChaNFSSD mbed ChaNFS
USBDevice/USBHID/USBHID.cpp@2:5db90410bb90, 2011-12-23 (annotated)
- Committer:
- okini3939
- Date:
- Fri Dec 23 16:37:58 2011 +0000
- Revision:
- 2:5db90410bb90
- Parent:
- 0:9b1d17d54055
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
okini3939 | 0:9b1d17d54055 | 1 | // USBHID.c |
okini3939 | 0:9b1d17d54055 | 2 | // Human Interface Device (HID) class |
okini3939 | 0:9b1d17d54055 | 3 | // Copyright (c) 2011 ARM Limited. All rights reserved. |
okini3939 | 0:9b1d17d54055 | 4 | |
okini3939 | 0:9b1d17d54055 | 5 | #include "stdint.h" |
okini3939 | 0:9b1d17d54055 | 6 | #include "USBBusInterface.h" |
okini3939 | 0:9b1d17d54055 | 7 | #include "USBHID.h" |
okini3939 | 0:9b1d17d54055 | 8 | |
okini3939 | 0:9b1d17d54055 | 9 | |
okini3939 | 0:9b1d17d54055 | 10 | USBHID::USBHID(uint8_t output_report_length, uint8_t input_report_length, uint16_t vendor_id, uint16_t product_id, uint16_t product_release, bool connect): USBDevice(vendor_id, product_id, product_release) |
okini3939 | 0:9b1d17d54055 | 11 | { |
okini3939 | 0:9b1d17d54055 | 12 | output_length = output_report_length; |
okini3939 | 0:9b1d17d54055 | 13 | input_length = input_report_length; |
okini3939 | 0:9b1d17d54055 | 14 | if(connect) { |
okini3939 | 0:9b1d17d54055 | 15 | USBDevice::connect(); |
okini3939 | 0:9b1d17d54055 | 16 | } |
okini3939 | 0:9b1d17d54055 | 17 | } |
okini3939 | 0:9b1d17d54055 | 18 | |
okini3939 | 0:9b1d17d54055 | 19 | |
okini3939 | 0:9b1d17d54055 | 20 | bool USBHID::send(HID_REPORT *report) |
okini3939 | 0:9b1d17d54055 | 21 | { |
okini3939 | 0:9b1d17d54055 | 22 | return write(EPINT_IN, report->data, report->length, MAX_HID_REPORT_SIZE); |
okini3939 | 0:9b1d17d54055 | 23 | } |
okini3939 | 0:9b1d17d54055 | 24 | |
okini3939 | 0:9b1d17d54055 | 25 | bool USBHID::sendNB(HID_REPORT *report) |
okini3939 | 0:9b1d17d54055 | 26 | { |
okini3939 | 0:9b1d17d54055 | 27 | return writeNB(EPINT_IN, report->data, report->length, MAX_HID_REPORT_SIZE); |
okini3939 | 0:9b1d17d54055 | 28 | } |
okini3939 | 0:9b1d17d54055 | 29 | |
okini3939 | 0:9b1d17d54055 | 30 | |
okini3939 | 0:9b1d17d54055 | 31 | bool USBHID::read(HID_REPORT *report) |
okini3939 | 0:9b1d17d54055 | 32 | { |
okini3939 | 0:9b1d17d54055 | 33 | uint16_t bytesRead = 0; |
okini3939 | 0:9b1d17d54055 | 34 | bool result; |
okini3939 | 0:9b1d17d54055 | 35 | result = USBDevice::readEP(EPINT_OUT, report->data, &bytesRead, MAX_HID_REPORT_SIZE); |
okini3939 | 0:9b1d17d54055 | 36 | if(!readStart(EPINT_OUT, MAX_HID_REPORT_SIZE)) |
okini3939 | 0:9b1d17d54055 | 37 | return false; |
okini3939 | 0:9b1d17d54055 | 38 | report->length = bytesRead; |
okini3939 | 0:9b1d17d54055 | 39 | return result; |
okini3939 | 0:9b1d17d54055 | 40 | } |
okini3939 | 0:9b1d17d54055 | 41 | |
okini3939 | 0:9b1d17d54055 | 42 | |
okini3939 | 0:9b1d17d54055 | 43 | bool USBHID::readNB(HID_REPORT *report) |
okini3939 | 0:9b1d17d54055 | 44 | { |
okini3939 | 0:9b1d17d54055 | 45 | uint16_t bytesRead = 0; |
okini3939 | 0:9b1d17d54055 | 46 | bool result; |
okini3939 | 0:9b1d17d54055 | 47 | result = USBDevice::readEP_NB(EPINT_OUT, report->data, &bytesRead, MAX_HID_REPORT_SIZE); |
okini3939 | 0:9b1d17d54055 | 48 | report->length = bytesRead; |
okini3939 | 0:9b1d17d54055 | 49 | if(!readStart(EPINT_OUT, MAX_HID_REPORT_SIZE)) |
okini3939 | 0:9b1d17d54055 | 50 | return false; |
okini3939 | 0:9b1d17d54055 | 51 | return result; |
okini3939 | 0:9b1d17d54055 | 52 | } |
okini3939 | 0:9b1d17d54055 | 53 | |
okini3939 | 0:9b1d17d54055 | 54 | |
okini3939 | 0:9b1d17d54055 | 55 | uint16_t USBHID::reportDescLength() { |
okini3939 | 0:9b1d17d54055 | 56 | reportDesc(); |
okini3939 | 0:9b1d17d54055 | 57 | return reportLength; |
okini3939 | 0:9b1d17d54055 | 58 | } |
okini3939 | 0:9b1d17d54055 | 59 | |
okini3939 | 0:9b1d17d54055 | 60 | |
okini3939 | 0:9b1d17d54055 | 61 | |
okini3939 | 0:9b1d17d54055 | 62 | // |
okini3939 | 0:9b1d17d54055 | 63 | // Route callbacks from lower layers to class(es) |
okini3939 | 0:9b1d17d54055 | 64 | // |
okini3939 | 0:9b1d17d54055 | 65 | |
okini3939 | 0:9b1d17d54055 | 66 | |
okini3939 | 0:9b1d17d54055 | 67 | // Called in ISR context |
okini3939 | 0:9b1d17d54055 | 68 | // Called by USBDevice on Endpoint0 request |
okini3939 | 0:9b1d17d54055 | 69 | // This is used to handle extensions to standard requests |
okini3939 | 0:9b1d17d54055 | 70 | // and class specific requests |
okini3939 | 0:9b1d17d54055 | 71 | // Return true if class handles this request |
okini3939 | 0:9b1d17d54055 | 72 | bool USBHID::USBCallback_request() { |
okini3939 | 0:9b1d17d54055 | 73 | bool success = false; |
okini3939 | 0:9b1d17d54055 | 74 | CONTROL_TRANSFER * transfer = getTransferPtr(); |
okini3939 | 0:9b1d17d54055 | 75 | uint8_t *hidDescriptor; |
okini3939 | 0:9b1d17d54055 | 76 | |
okini3939 | 0:9b1d17d54055 | 77 | // Process additional standard requests |
okini3939 | 0:9b1d17d54055 | 78 | |
okini3939 | 0:9b1d17d54055 | 79 | if ((transfer->setup.bmRequestType.Type == STANDARD_TYPE)) |
okini3939 | 0:9b1d17d54055 | 80 | { |
okini3939 | 0:9b1d17d54055 | 81 | switch (transfer->setup.bRequest) |
okini3939 | 0:9b1d17d54055 | 82 | { |
okini3939 | 0:9b1d17d54055 | 83 | case GET_DESCRIPTOR: |
okini3939 | 0:9b1d17d54055 | 84 | switch (DESCRIPTOR_TYPE(transfer->setup.wValue)) |
okini3939 | 0:9b1d17d54055 | 85 | { |
okini3939 | 0:9b1d17d54055 | 86 | case REPORT_DESCRIPTOR: |
okini3939 | 0:9b1d17d54055 | 87 | if ((reportDesc() != NULL) \ |
okini3939 | 0:9b1d17d54055 | 88 | && (reportDescLength() != 0)) |
okini3939 | 0:9b1d17d54055 | 89 | { |
okini3939 | 0:9b1d17d54055 | 90 | transfer->remaining = reportDescLength(); |
okini3939 | 0:9b1d17d54055 | 91 | transfer->ptr = reportDesc(); |
okini3939 | 0:9b1d17d54055 | 92 | transfer->direction = DEVICE_TO_HOST; |
okini3939 | 0:9b1d17d54055 | 93 | success = true; |
okini3939 | 0:9b1d17d54055 | 94 | } |
okini3939 | 0:9b1d17d54055 | 95 | break; |
okini3939 | 0:9b1d17d54055 | 96 | case HID_DESCRIPTOR: |
okini3939 | 0:9b1d17d54055 | 97 | // Find the HID descriptor, after the configuration descriptor |
okini3939 | 0:9b1d17d54055 | 98 | hidDescriptor = findDescriptor(HID_DESCRIPTOR); |
okini3939 | 0:9b1d17d54055 | 99 | if (hidDescriptor != NULL) |
okini3939 | 0:9b1d17d54055 | 100 | { |
okini3939 | 0:9b1d17d54055 | 101 | transfer->remaining = HID_DESCRIPTOR_LENGTH; |
okini3939 | 0:9b1d17d54055 | 102 | transfer->ptr = hidDescriptor; |
okini3939 | 0:9b1d17d54055 | 103 | transfer->direction = DEVICE_TO_HOST; |
okini3939 | 0:9b1d17d54055 | 104 | success = true; |
okini3939 | 0:9b1d17d54055 | 105 | } |
okini3939 | 0:9b1d17d54055 | 106 | break; |
okini3939 | 0:9b1d17d54055 | 107 | |
okini3939 | 0:9b1d17d54055 | 108 | default: |
okini3939 | 0:9b1d17d54055 | 109 | break; |
okini3939 | 0:9b1d17d54055 | 110 | } |
okini3939 | 0:9b1d17d54055 | 111 | break; |
okini3939 | 0:9b1d17d54055 | 112 | default: |
okini3939 | 0:9b1d17d54055 | 113 | break; |
okini3939 | 0:9b1d17d54055 | 114 | } |
okini3939 | 0:9b1d17d54055 | 115 | } |
okini3939 | 0:9b1d17d54055 | 116 | |
okini3939 | 0:9b1d17d54055 | 117 | // Process class-specific requests |
okini3939 | 0:9b1d17d54055 | 118 | |
okini3939 | 0:9b1d17d54055 | 119 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) |
okini3939 | 0:9b1d17d54055 | 120 | { |
okini3939 | 0:9b1d17d54055 | 121 | switch (transfer->setup.bRequest) |
okini3939 | 0:9b1d17d54055 | 122 | { |
okini3939 | 0:9b1d17d54055 | 123 | case SET_REPORT: |
okini3939 | 0:9b1d17d54055 | 124 | // First byte will be used for report ID |
okini3939 | 0:9b1d17d54055 | 125 | outputReport.data[0] = transfer->setup.wValue & 0xff; |
okini3939 | 0:9b1d17d54055 | 126 | outputReport.length = transfer->setup.wLength + 1; |
okini3939 | 0:9b1d17d54055 | 127 | |
okini3939 | 0:9b1d17d54055 | 128 | transfer->remaining = sizeof(outputReport.data) - 1; |
okini3939 | 0:9b1d17d54055 | 129 | transfer->ptr = &outputReport.data[1]; |
okini3939 | 0:9b1d17d54055 | 130 | transfer->direction = HOST_TO_DEVICE; |
okini3939 | 0:9b1d17d54055 | 131 | transfer->notify = true; |
okini3939 | 0:9b1d17d54055 | 132 | success = true; |
okini3939 | 0:9b1d17d54055 | 133 | default: |
okini3939 | 0:9b1d17d54055 | 134 | break; |
okini3939 | 0:9b1d17d54055 | 135 | } |
okini3939 | 0:9b1d17d54055 | 136 | } |
okini3939 | 0:9b1d17d54055 | 137 | |
okini3939 | 0:9b1d17d54055 | 138 | return success; |
okini3939 | 0:9b1d17d54055 | 139 | } |
okini3939 | 0:9b1d17d54055 | 140 | |
okini3939 | 0:9b1d17d54055 | 141 | |
okini3939 | 0:9b1d17d54055 | 142 | #define DEFAULT_CONFIGURATION (1) |
okini3939 | 0:9b1d17d54055 | 143 | |
okini3939 | 0:9b1d17d54055 | 144 | |
okini3939 | 0:9b1d17d54055 | 145 | // Called in ISR context |
okini3939 | 0:9b1d17d54055 | 146 | // Set configuration. Return false if the |
okini3939 | 0:9b1d17d54055 | 147 | // configuration is not supported |
okini3939 | 0:9b1d17d54055 | 148 | bool USBHID::USBCallback_setConfiguration(uint8_t configuration) { |
okini3939 | 0:9b1d17d54055 | 149 | if (configuration != DEFAULT_CONFIGURATION) { |
okini3939 | 0:9b1d17d54055 | 150 | return false; |
okini3939 | 0:9b1d17d54055 | 151 | } |
okini3939 | 0:9b1d17d54055 | 152 | |
okini3939 | 0:9b1d17d54055 | 153 | // Configure endpoints > 0 |
okini3939 | 0:9b1d17d54055 | 154 | addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT); |
okini3939 | 0:9b1d17d54055 | 155 | addEndpoint(EPINT_OUT, MAX_PACKET_SIZE_EPINT); |
okini3939 | 0:9b1d17d54055 | 156 | |
okini3939 | 0:9b1d17d54055 | 157 | // We activate the endpoint to be able to recceive data |
okini3939 | 0:9b1d17d54055 | 158 | readStart(EPINT_OUT, MAX_PACKET_SIZE_EPINT); |
okini3939 | 0:9b1d17d54055 | 159 | return true; |
okini3939 | 0:9b1d17d54055 | 160 | } |
okini3939 | 0:9b1d17d54055 | 161 | |
okini3939 | 0:9b1d17d54055 | 162 | |
okini3939 | 0:9b1d17d54055 | 163 | uint8_t * USBHID::stringIinterfaceDesc() { |
okini3939 | 0:9b1d17d54055 | 164 | static uint8_t stringIinterfaceDescriptor[] = { |
okini3939 | 0:9b1d17d54055 | 165 | 0x08, //bLength |
okini3939 | 0:9b1d17d54055 | 166 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
okini3939 | 0:9b1d17d54055 | 167 | 'H',0,'I',0,'D',0, //bString iInterface - HID |
okini3939 | 0:9b1d17d54055 | 168 | }; |
okini3939 | 0:9b1d17d54055 | 169 | return stringIinterfaceDescriptor; |
okini3939 | 0:9b1d17d54055 | 170 | } |
okini3939 | 0:9b1d17d54055 | 171 | |
okini3939 | 0:9b1d17d54055 | 172 | uint8_t * USBHID::stringIproductDesc() { |
okini3939 | 0:9b1d17d54055 | 173 | static uint8_t stringIproductDescriptor[] = { |
okini3939 | 0:9b1d17d54055 | 174 | 0x16, //bLength |
okini3939 | 0:9b1d17d54055 | 175 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
okini3939 | 0:9b1d17d54055 | 176 | 'H',0,'I',0,'D',0,' ',0,'D',0,'E',0,'V',0,'I',0,'C',0,'E',0 //bString iProduct - HID device |
okini3939 | 0:9b1d17d54055 | 177 | }; |
okini3939 | 0:9b1d17d54055 | 178 | return stringIproductDescriptor; |
okini3939 | 0:9b1d17d54055 | 179 | } |
okini3939 | 0:9b1d17d54055 | 180 | |
okini3939 | 0:9b1d17d54055 | 181 | |
okini3939 | 0:9b1d17d54055 | 182 | |
okini3939 | 0:9b1d17d54055 | 183 | uint8_t * USBHID::reportDesc() { |
okini3939 | 0:9b1d17d54055 | 184 | static uint8_t reportDescriptor[] = { |
okini3939 | 0:9b1d17d54055 | 185 | 0x06, LSB(0xFFAB), MSB(0xFFAB), |
okini3939 | 0:9b1d17d54055 | 186 | 0x0A, LSB(0x0200), MSB(0x0200), |
okini3939 | 0:9b1d17d54055 | 187 | 0xA1, 0x01, // Collection 0x01 |
okini3939 | 0:9b1d17d54055 | 188 | 0x75, 0x08, // report size = 8 bits |
okini3939 | 0:9b1d17d54055 | 189 | 0x15, 0x00, // logical minimum = 0 |
okini3939 | 0:9b1d17d54055 | 190 | 0x26, 0xFF, 0x00, // logical maximum = 255 |
okini3939 | 0:9b1d17d54055 | 191 | 0x95, input_length, // report count |
okini3939 | 0:9b1d17d54055 | 192 | 0x09, 0x01, // usage |
okini3939 | 0:9b1d17d54055 | 193 | 0x81, 0x02, // Input (array) |
okini3939 | 0:9b1d17d54055 | 194 | 0x95, output_length, // report count |
okini3939 | 0:9b1d17d54055 | 195 | 0x09, 0x02, // usage |
okini3939 | 0:9b1d17d54055 | 196 | 0x91, 0x02, // Output (array) |
okini3939 | 0:9b1d17d54055 | 197 | 0xC0 // end collection |
okini3939 | 0:9b1d17d54055 | 198 | |
okini3939 | 0:9b1d17d54055 | 199 | }; |
okini3939 | 0:9b1d17d54055 | 200 | reportLength = sizeof(reportDescriptor); |
okini3939 | 0:9b1d17d54055 | 201 | return reportDescriptor; |
okini3939 | 0:9b1d17d54055 | 202 | } |
okini3939 | 0:9b1d17d54055 | 203 | |
okini3939 | 0:9b1d17d54055 | 204 | #define DEFAULT_CONFIGURATION (1) |
okini3939 | 0:9b1d17d54055 | 205 | #define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) \ |
okini3939 | 0:9b1d17d54055 | 206 | + (1 * INTERFACE_DESCRIPTOR_LENGTH) \ |
okini3939 | 0:9b1d17d54055 | 207 | + (1 * HID_DESCRIPTOR_LENGTH) \ |
okini3939 | 0:9b1d17d54055 | 208 | + (2 * ENDPOINT_DESCRIPTOR_LENGTH)) |
okini3939 | 0:9b1d17d54055 | 209 | |
okini3939 | 0:9b1d17d54055 | 210 | uint8_t * USBHID::configurationDesc() { |
okini3939 | 0:9b1d17d54055 | 211 | static uint8_t configurationDescriptor[] = { |
okini3939 | 0:9b1d17d54055 | 212 | CONFIGURATION_DESCRIPTOR_LENGTH,// bLength |
okini3939 | 0:9b1d17d54055 | 213 | CONFIGURATION_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 214 | LSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (LSB) |
okini3939 | 0:9b1d17d54055 | 215 | MSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (MSB) |
okini3939 | 0:9b1d17d54055 | 216 | 0x01, // bNumInterfaces |
okini3939 | 0:9b1d17d54055 | 217 | DEFAULT_CONFIGURATION, // bConfigurationValue |
okini3939 | 0:9b1d17d54055 | 218 | 0x00, // iConfiguration |
okini3939 | 0:9b1d17d54055 | 219 | C_RESERVED | C_SELF_POWERED, // bmAttributes |
okini3939 | 0:9b1d17d54055 | 220 | C_POWER(0), // bMaxPower |
okini3939 | 0:9b1d17d54055 | 221 | |
okini3939 | 0:9b1d17d54055 | 222 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
okini3939 | 0:9b1d17d54055 | 223 | INTERFACE_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 224 | 0x00, // bInterfaceNumber |
okini3939 | 0:9b1d17d54055 | 225 | 0x00, // bAlternateSetting |
okini3939 | 0:9b1d17d54055 | 226 | 0x02, // bNumEndpoints |
okini3939 | 0:9b1d17d54055 | 227 | HID_CLASS, // bInterfaceClass |
okini3939 | 0:9b1d17d54055 | 228 | HID_SUBCLASS_NONE, // bInterfaceSubClass |
okini3939 | 0:9b1d17d54055 | 229 | HID_PROTOCOL_NONE, // bInterfaceProtocol |
okini3939 | 0:9b1d17d54055 | 230 | 0x00, // iInterface |
okini3939 | 0:9b1d17d54055 | 231 | |
okini3939 | 0:9b1d17d54055 | 232 | HID_DESCRIPTOR_LENGTH, // bLength |
okini3939 | 0:9b1d17d54055 | 233 | HID_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 234 | LSB(HID_VERSION_1_11), // bcdHID (LSB) |
okini3939 | 0:9b1d17d54055 | 235 | MSB(HID_VERSION_1_11), // bcdHID (MSB) |
okini3939 | 0:9b1d17d54055 | 236 | 0x00, // bCountryCode |
okini3939 | 0:9b1d17d54055 | 237 | 0x01, // bNumDescriptors |
okini3939 | 0:9b1d17d54055 | 238 | REPORT_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 239 | LSB(this->reportDescLength()), // wDescriptorLength (LSB) |
okini3939 | 0:9b1d17d54055 | 240 | MSB(this->reportDescLength()), // wDescriptorLength (MSB) |
okini3939 | 0:9b1d17d54055 | 241 | |
okini3939 | 0:9b1d17d54055 | 242 | ENDPOINT_DESCRIPTOR_LENGTH, // bLength |
okini3939 | 0:9b1d17d54055 | 243 | ENDPOINT_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 244 | PHY_TO_DESC(EPINT_IN), // bEndpointAddress |
okini3939 | 0:9b1d17d54055 | 245 | E_INTERRUPT, // bmAttributes |
okini3939 | 0:9b1d17d54055 | 246 | LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB) |
okini3939 | 0:9b1d17d54055 | 247 | MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB) |
okini3939 | 0:9b1d17d54055 | 248 | 1, // bInterval (milliseconds) |
okini3939 | 0:9b1d17d54055 | 249 | |
okini3939 | 0:9b1d17d54055 | 250 | ENDPOINT_DESCRIPTOR_LENGTH, // bLength |
okini3939 | 0:9b1d17d54055 | 251 | ENDPOINT_DESCRIPTOR, // bDescriptorType |
okini3939 | 0:9b1d17d54055 | 252 | PHY_TO_DESC(EPINT_OUT), // bEndpointAddress |
okini3939 | 0:9b1d17d54055 | 253 | E_INTERRUPT, // bmAttributes |
okini3939 | 0:9b1d17d54055 | 254 | LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB) |
okini3939 | 0:9b1d17d54055 | 255 | MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB) |
okini3939 | 0:9b1d17d54055 | 256 | 1, // bInterval (milliseconds) |
okini3939 | 0:9b1d17d54055 | 257 | }; |
okini3939 | 0:9b1d17d54055 | 258 | return configurationDescriptor; |
okini3939 | 0:9b1d17d54055 | 259 | } |