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#include <stdint.h>
#include "USBHID.h"
#include "USBHID_Types.h"
#include "USBDescriptor.h"
#include "HIDKeyboard.h"
#define DEFAULT_CONFIGURATION (1)
HIDKeyboard::HIDKeyboard(uint16_t vendor_id, uint16_t product_id, uint16_t product_release) : USBDevice(vendor_id, product_id, product_release) { USBDevice::connect(); }
bool HIDKeyboard::sendReport(report_keyboard_t report) {
USBDevice::write(EP1IN, report.raw, sizeof(report), MAX_PACKET_SIZE_EP1);
return true;
}
uint8_t HIDKeyboard::leds() { return led_state; }
bool HIDKeyboard::USBCallback_setConfiguration(uint8_t configuration) {
if (configuration != DEFAULT_CONFIGURATION) {
return false;
}
// Configure endpoints > 0
addEndpoint(EPINT_IN, MAX_PACKET_SIZE_EPINT);
// addEndpoint(EPINT_OUT, MAX_PACKET_SIZE_EPINT);
// We activate the endpoint to be able to recceive data
// readStart(EPINT_OUT, MAX_PACKET_SIZE_EPINT);
return true;
}
uint8_t *HIDKeyboard::stringImanufacturerDesc() {
static uint8_t stringImanufacturerDescriptor[] = {
0x18, /*bLength*/
STRING_DESCRIPTOR, /*bDescriptorType 0x03*/
't',
0,
'm',
0,
'k',
0,
'-',
0,
'k',
0,
'b',
0,
'd',
0,
'.',
0,
'c',
0,
'o',
0,
'm',
0 /*bString iManufacturer*/
};
return stringImanufacturerDescriptor;
}
uint8_t *HIDKeyboard::stringIproductDesc() {
static uint8_t stringIproductDescriptor[] = {
0x0a, /*bLength*/
STRING_DESCRIPTOR, /*bDescriptorType 0x03*/
'm',
0,
'b',
0,
'e',
0,
'd',
0 /*bString iProduct*/
};
return stringIproductDescriptor;
}
uint8_t *HIDKeyboard::stringIserialDesc() {
static uint8_t stringIserialDescriptor[] = {
0x04, /*bLength*/
STRING_DESCRIPTOR, /*bDescriptorType 0x03*/
'0', 0 /*bString iSerial*/
};
return stringIserialDescriptor;
}
uint8_t *HIDKeyboard::reportDesc() {
static uint8_t reportDescriptor[] = {
USAGE_PAGE(1), 0x01, // Generic Desktop
USAGE(1), 0x06, // Keyboard
COLLECTION(1), 0x01, // Application
USAGE_PAGE(1), 0x07, // Key Codes
USAGE_MINIMUM(1), 0xE0, USAGE_MAXIMUM(1), 0xE7, LOGICAL_MINIMUM(1), 0x00, LOGICAL_MAXIMUM(1), 0x01, REPORT_SIZE(1), 0x01, REPORT_COUNT(1), 0x08, INPUT(1), 0x02, // Data, Variable, Absolute
REPORT_COUNT(1), 0x01, REPORT_SIZE(1), 0x08, INPUT(1), 0x01, // Constant
REPORT_COUNT(1), 0x05, REPORT_SIZE(1), 0x01, USAGE_PAGE(1), 0x08, // LEDs
USAGE_MINIMUM(1), 0x01, USAGE_MAXIMUM(1), 0x05, OUTPUT(1), 0x02, // Data, Variable, Absolute
REPORT_COUNT(1), 0x01, REPORT_SIZE(1), 0x03, OUTPUT(1), 0x01, // Constant
REPORT_COUNT(1), 0x06, REPORT_SIZE(1), 0x08, LOGICAL_MINIMUM(1), 0x00, LOGICAL_MAXIMUM(1), 0xFF, USAGE_PAGE(1), 0x07, // Key Codes
USAGE_MINIMUM(1), 0x00, USAGE_MAXIMUM(1), 0xFF, INPUT(1), 0x00, // Data, Array
END_COLLECTION(0),
};
reportLength = sizeof(reportDescriptor);
return reportDescriptor;
}
uint16_t HIDKeyboard::reportDescLength() {
reportDesc();
return reportLength;
}
#define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) + (1 * INTERFACE_DESCRIPTOR_LENGTH) + (1 * HID_DESCRIPTOR_LENGTH) + (1 * ENDPOINT_DESCRIPTOR_LENGTH))
uint8_t *HIDKeyboard::configurationDesc() {
static uint8_t configurationDescriptor[] = {
CONFIGURATION_DESCRIPTOR_LENGTH, // bLength
CONFIGURATION_DESCRIPTOR, // bDescriptorType
LSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (LSB)
MSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (MSB)
0x01, // bNumInterfaces
DEFAULT_CONFIGURATION, // bConfigurationValue
0x00, // iConfiguration
C_RESERVED | C_REMOTE_WAKEUP, // bmAttributes
C_POWER(100), // bMaxPowerHello World from Mbed
INTERFACE_DESCRIPTOR_LENGTH, // bLength
INTERFACE_DESCRIPTOR, // bDescriptorType
0x00, // bInterfaceNumber
0x00, // bAlternateSetting
0x01, // bNumEndpoints
HID_CLASS, // bInterfaceClass
1, // bInterfaceSubClass (boot)
1, // bInterfaceProtocol (keyboard)
0x00, // iInterface
HID_DESCRIPTOR_LENGTH, // bLength
HID_DESCRIPTOR, // bDescriptorType
LSB(HID_VERSION_1_11), // bcdHID (LSB)
MSB(HID_VERSION_1_11), // bcdHID (MSB)
0x00, // bCountryCode
0x01, // bNumDescriptors
REPORT_DESCRIPTOR, // bDescriptorType
(uint8_t)(LSB(reportDescLength())), // wDescriptorLength (LSB)
(uint8_t)(MSB(reportDescLength())), // wDescriptorLength (MSB)
ENDPOINT_DESCRIPTOR_LENGTH, // bLength
ENDPOINT_DESCRIPTOR, // bDescriptorType
PHY_TO_DESC(EP1IN), // bEndpointAddress
E_INTERRUPT, // bmAttributes
LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
1, // bInterval (milliseconds)
};
return configurationDescriptor;
}
#if 0
uint8_t * HIDKeyboard::deviceDesc() {
static uint8_t deviceDescriptor[] = {
DEVICE_DESCRIPTOR_LENGTH, /* bLength */
DEVICE_DESCRIPTOR, /* bDescriptorType */
LSB(USB_VERSION_2_0), /* bcdUSB (LSB) */
MSB(USB_VERSION_2_0), /* bcdUSB (MSB) */
0x00, /* bDeviceClass */
0x00, /* bDeviceSubClass */
0x00, /* bDeviceprotocol */
MAX_PACKET_SIZE_EP0, /* bMaxPacketSize0 */
(uint8_t)(LSB(0xfeed)), /* idVendor (LSB) */
(uint8_t)(MSB(0xfeed)), /* idVendor (MSB) */
(uint8_t)(LSB(0x1bed)), /* idProduct (LSB) */
(uint8_t)(MSB(0x1bed)), /* idProduct (MSB) */
(uint8_t)(LSB(0x0002)), /* bcdDevice (LSB) */
(uint8_t)(MSB(0x0002)), /* bcdDevice (MSB) */
0, /* iManufacturer */
0, /* iProduct */
0, /* iSerialNumber */
0x01 /* bNumConfigurations */
};
return deviceDescriptor;
}
#endif
bool HIDKeyboard::USBCallback_request() {
bool success = false;
CONTROL_TRANSFER *transfer = getTransferPtr();
uint8_t * hidDescriptor;
// Process additional standard requests
if ((transfer->setup.bmRequestType.Type == STANDARD_TYPE)) {
switch (transfer->setup.bRequest) {
case GET_DESCRIPTOR:
switch (DESCRIPTOR_TYPE(transfer->setup.wValue)) {
case REPORT_DESCRIPTOR:
if ((reportDesc() != NULL) && (reportDescLength() != 0)) {
transfer->remaining = reportDescLength();
transfer->ptr = reportDesc();
transfer->direction = DEVICE_TO_HOST;
success = true;
}
break;
case HID_DESCRIPTOR:
// Find the HID descriptor, after the configuration descriptor
hidDescriptor = findDescriptor(HID_DESCRIPTOR);
if (hidDescriptor != NULL) {
transfer->remaining = HID_DESCRIPTOR_LENGTH;
transfer->ptr = hidDescriptor;
transfer->direction = DEVICE_TO_HOST;
success = true;
}
break;
default:
break;
}
break;
default:
break;
}
}
// Process class-specific requests
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
switch (transfer->setup.bRequest) {
case SET_REPORT:
// LED indicator
// TODO: check Interface and Report length?
// if (transfer->setup.wIndex == INTERFACE_KEYBOAD) { }
// if (transfer->setup.wLength == 1)
transfer->remaining = 1;
// transfer->ptr = ?? what ptr should be set when OUT(not used?)
transfer->direction = HOST_TO_DEVICE;
transfer->notify = true; /* notify with USBCallback_requestCompleted */
success = true;
default:
break;
}
}
return success;
}
void HIDKeyboard::USBCallback_requestCompleted(uint8_t *buf, uint32_t length) {
if (length > 0) {
CONTROL_TRANSFER *transfer = getTransferPtr();
if (transfer->setup.bmRequestType.Type == CLASS_TYPE) {
switch (transfer->setup.bRequest) {
case SET_REPORT:
led_state = buf[0];
break;
default:
break;
}
}
}
}
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