protocol/mbed/HIDKeyboard.cpp

   1 #include <stdint.h>
   2 #include "USBHID.h"
   3 #include "USBHID_Types.h"
   4 #include "USBDescriptor.h"
   5 #include "HIDKeyboard.h"
   6
   7 #define DEFAULT_CONFIGURATION (1)
   8
   9
  10 HIDKeyboard::HIDKeyboard(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release)
  11 {
  12     USBDevice::connect();
  13 }
  14
  15 bool HIDKeyboard::sendReport(report_keyboard_t report) {
  16     USBDevice::write(EP1IN, report.raw, sizeof(report), MAX_PACKET_SIZE_EP1);
  17     return true;
  18 }
  19
  20 uint8_t HIDKeyboard::leds() {
  21     return led_state;
  22 }
  23
  24 bool HIDKeyboard::USBCallback_setConfiguration(uint8_t configuration) {
  25     if (configuration != DEFAULT_CONFIGURATION) {
  26         return false;
  27     }
  28
  29     // Configure endpoints > 0
  30     addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT);
  31     //addEndpoint(EPINT_OUT, MAX_PACKET_SIZE_EPINT);
  32
  33     // We activate the endpoint to be able to recceive data
  34     //readStart(EPINT_OUT, MAX_PACKET_SIZE_EPINT);
  35     return true;
  36 }
  37
  38
  39 uint8_t * HIDKeyboard::stringImanufacturerDesc() {
  40     static uint8_t stringImanufacturerDescriptor[] = {
  41         0x18,                                            /*bLength*/
  42         STRING_DESCRIPTOR,                               /*bDescriptorType 0x03*/
  43         't',0,'m',0,'k',0,'-',0,'k',0,'b',0,'d',0,'.',0,'c',0,'o',0,'m',0   /*bString iManufacturer*/
  44     };
  45     return stringImanufacturerDescriptor;
  46 }
  47
  48 uint8_t * HIDKeyboard::stringIproductDesc() {
  49     static uint8_t stringIproductDescriptor[] = {
  50         0x0a,                                                       /*bLength*/
  51         STRING_DESCRIPTOR,                                          /*bDescriptorType 0x03*/
  52         'm',0,'b',0,'e',0,'d',0                                     /*bString iProduct*/
  53     };
  54     return stringIproductDescriptor;
  55 }
  56
  57 uint8_t * HIDKeyboard::stringIserialDesc() {
  58     static uint8_t stringIserialDescriptor[] = {
  59         0x04,                                                           /*bLength*/
  60         STRING_DESCRIPTOR,                                              /*bDescriptorType 0x03*/
  61         '0',0                                                           /*bString iSerial*/
  62     };
  63     return stringIserialDescriptor;
  64 }
  65
  66 uint8_t * HIDKeyboard::reportDesc() {
  67     static uint8_t reportDescriptor[] = {
  68         USAGE_PAGE(1), 0x01,                    // Generic Desktop
  69         USAGE(1), 0x06,                         // Keyboard
  70         COLLECTION(1), 0x01,                    // Application
  71
  72         USAGE_PAGE(1), 0x07,                    // Key Codes
  73         USAGE_MINIMUM(1), 0xE0,
  74         USAGE_MAXIMUM(1), 0xE7,
  75         LOGICAL_MINIMUM(1), 0x00,
  76         LOGICAL_MAXIMUM(1), 0x01,
  77         REPORT_SIZE(1), 0x01,
  78         REPORT_COUNT(1), 0x08,
  79         INPUT(1), 0x02,                         // Data, Variable, Absolute
  80
  81         REPORT_COUNT(1), 0x01,
  82         REPORT_SIZE(1), 0x08,
  83         INPUT(1), 0x01,                         // Constant
  84
  85         REPORT_COUNT(1), 0x05,
  86         REPORT_SIZE(1), 0x01,
  87         USAGE_PAGE(1), 0x08,                    // LEDs
  88         USAGE_MINIMUM(1), 0x01,
  89         USAGE_MAXIMUM(1), 0x05,
  90         OUTPUT(1), 0x02,                        // Data, Variable, Absolute
  91
  92         REPORT_COUNT(1), 0x01,
  93         REPORT_SIZE(1), 0x03,
  94         OUTPUT(1), 0x01,                        // Constant
  95
  96
  97         REPORT_COUNT(1), 0x06,
  98         REPORT_SIZE(1), 0x08,
  99         LOGICAL_MINIMUM(1), 0x00,
 100         LOGICAL_MAXIMUM(1), 0xFF,
 101         USAGE_PAGE(1), 0x07,                    // Key Codes
 102         USAGE_MINIMUM(1), 0x00,
 103         USAGE_MAXIMUM(1), 0xFF,
 104         INPUT(1), 0x00,                         // Data, Array
 105         END_COLLECTION(0),
 106     };
 107     reportLength = sizeof(reportDescriptor);
 108     return reportDescriptor;
 109 }
 110
 111 uint16_t HIDKeyboard::reportDescLength() {
 112     reportDesc();
 113     return reportLength;
 114 }
 115
 116 #define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) \
 117                                + (1 * INTERFACE_DESCRIPTOR_LENGTH) \
 118                                + (1 * HID_DESCRIPTOR_LENGTH) \
 119                                + (1 * ENDPOINT_DESCRIPTOR_LENGTH))
 120 uint8_t * HIDKeyboard::configurationDesc() {
 121     static uint8_t configurationDescriptor[] = {
 122         CONFIGURATION_DESCRIPTOR_LENGTH,// bLength
 123         CONFIGURATION_DESCRIPTOR,       // bDescriptorType
 124         LSB(TOTAL_DESCRIPTOR_LENGTH),   // wTotalLength (LSB)
 125         MSB(TOTAL_DESCRIPTOR_LENGTH),   // wTotalLength (MSB)
 126         0x01,                           // bNumInterfaces
 127         DEFAULT_CONFIGURATION,          // bConfigurationValue
 128         0x00,                           // iConfiguration
 129         C_RESERVED | C_REMOTE_WAKEUP,   // bmAttributes
 130         C_POWER(100),                   // bMaxPowerHello World from Mbed
 131
 132         INTERFACE_DESCRIPTOR_LENGTH,    // bLength
 133         INTERFACE_DESCRIPTOR,           // bDescriptorType
 134         0x00,                           // bInterfaceNumber
 135         0x00,                           // bAlternateSetting
 136         0x01,                           // bNumEndpoints
 137         HID_CLASS,                      // bInterfaceClass
 138         1,                              // bInterfaceSubClass (boot)
 139         1,                              // bInterfaceProtocol (keyboard)
 140         0x00,                           // iInterface
 141
 142         HID_DESCRIPTOR_LENGTH,          // bLength
 143         HID_DESCRIPTOR,                 // bDescriptorType
 144         LSB(HID_VERSION_1_11),          // bcdHID (LSB)
 145         MSB(HID_VERSION_1_11),          // bcdHID (MSB)
 146         0x00,                           // bCountryCode
 147         0x01,                           // bNumDescriptors
 148         REPORT_DESCRIPTOR,              // bDescriptorType
 149         (uint8_t)(LSB(reportDescLength())),  // wDescriptorLength (LSB)
 150         (uint8_t)(MSB(reportDescLength())),  // wDescriptorLength (MSB)
 151
 152         ENDPOINT_DESCRIPTOR_LENGTH,     // bLength
 153         ENDPOINT_DESCRIPTOR,            // bDescriptorType
 154         PHY_TO_DESC(EP1IN),             // bEndpointAddress
 155         E_INTERRUPT,                    // bmAttributes
 156         LSB(MAX_PACKET_SIZE_EPINT),     // wMaxPacketSize (LSB)
 157         MSB(MAX_PACKET_SIZE_EPINT),     // wMaxPacketSize (MSB)
 158         1,                           // bInterval (milliseconds)
 159     };
 160     return configurationDescriptor;
 161 }
 162
 163 #if 0
 164 uint8_t * HIDKeyboard::deviceDesc() {
 165     static uint8_t deviceDescriptor[] = {
 166         DEVICE_DESCRIPTOR_LENGTH,       /* bLength */
 167         DEVICE_DESCRIPTOR,              /* bDescriptorType */
 168         LSB(USB_VERSION_2_0),           /* bcdUSB (LSB) */
 169         MSB(USB_VERSION_2_0),           /* bcdUSB (MSB) */
 170         0x00,                           /* bDeviceClass */
 171         0x00,                           /* bDeviceSubClass */
 172         0x00,                           /* bDeviceprotocol */
 173         MAX_PACKET_SIZE_EP0,            /* bMaxPacketSize0 */
 174         (uint8_t)(LSB(0xfeed)),                 /* idVendor (LSB) */
 175         (uint8_t)(MSB(0xfeed)),                 /* idVendor (MSB) */
 176         (uint8_t)(LSB(0x1bed)),                /* idProduct (LSB) */
 177         (uint8_t)(MSB(0x1bed)),                /* idProduct (MSB) */
 178         (uint8_t)(LSB(0x0002)),           /* bcdDevice (LSB) */
 179         (uint8_t)(MSB(0x0002)),           /* bcdDevice (MSB) */
 180         0,    /* iManufacturer */
 181         0,         /* iProduct */
 182         0,          /* iSerialNumber */
 183         0x01                            /* bNumConfigurations */
 184     };
 185     return deviceDescriptor;
 186 }
 187 #endif
 188
 189 bool HIDKeyboard::USBCallback_request() {
 190     bool success = false;
 191     CONTROL_TRANSFER * transfer = getTransferPtr();
 192     uint8_t *hidDescriptor;
 193
 194     // Process additional standard requests
 195
 196     if ((transfer->setup.bmRequestType.Type == STANDARD_TYPE))
 197     {
 198         switch (transfer->setup.bRequest)
 199         {
 200             case GET_DESCRIPTOR:
 201                 switch (DESCRIPTOR_TYPE(transfer->setup.wValue))
 202                 {
 203                     case REPORT_DESCRIPTOR:
 204                         if ((reportDesc() != NULL) \
 205                             && (reportDescLength() != 0))
 206                         {
 207                             transfer->remaining = reportDescLength();
 208                             transfer->ptr = reportDesc();
 209                             transfer->direction = DEVICE_TO_HOST;
 210                             success = true;
 211                         }
 212                         break;
 213                     case HID_DESCRIPTOR:
 214                             // Find the HID descriptor, after the configuration descriptor
 215                             hidDescriptor = findDescriptor(HID_DESCRIPTOR);
 216                             if (hidDescriptor != NULL)
 217                             {
 218                                 transfer->remaining = HID_DESCRIPTOR_LENGTH;
 219                                 transfer->ptr = hidDescriptor;
 220                                 transfer->direction = DEVICE_TO_HOST;
 221                                 success = true;
 222                             }
 223                             break;
 224
 225                     default:
 226                         break;
 227                 }
 228                 break;
 229             default:
 230                 break;
 231         }
 232     }
 233
 234     // Process class-specific requests
 235     if (transfer->setup.bmRequestType.Type == CLASS_TYPE)
 236     {
 237         switch (transfer->setup.bRequest) {
 238             case SET_REPORT:
 239                 // LED indicator
 240                 // TODO: check Interface and Report length?
 241                 // if (transfer->setup.wIndex == INTERFACE_KEYBOAD) { }
 242                 // if (transfer->setup.wLength == 1)
 243
 244                 transfer->remaining = 1;
 245                 //transfer->ptr = ?? what ptr should be set when OUT(not used?)
 246                 transfer->direction = HOST_TO_DEVICE;
 247                 transfer->notify = true;    /* notify with USBCallback_requestCompleted */
 248                 success = true;
 249             default:
 250                 break;
 251         }
 252     }
 253
 254     return success;
 255 }
 256
 257 void HIDKeyboard::USBCallback_requestCompleted(uint8_t * buf, uint32_t length)
 258 {
 259     if (length > 0) {
 260         CONTROL_TRANSFER *transfer = getTransferPtr();
 261         if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
 262             switch (transfer->setup.bRequest) {
 263                 case SET_REPORT:
 264                     led_state = buf[0];
 265                     break;
 266                 default:
 267                     break;
 268             }
 269         }
 270     }
 271 }