Seeed Studio
usb device library
Fork of
USBDevice
by 
mbed official
USBHID/USBKeyboard.cpp
- Committer:
- samux
- Date:
- 2012-07-17
- Revision:
- 1:80ab0d068708
File content as of revision 1:80ab0d068708:
/* Copyright (c) 2010-2011 mbed.org, MIT License
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software
* and associated documentation files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or
* substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "stdint.h"
#include "USBKeyboard.h"
#define REPORT_ID_KEYBOARD 1
#define REPORT_ID_VOLUME 3
typedef struct {
unsigned char usage;
unsigned char modifier;
} KEYMAP;
#ifdef US_KEYBOARD
/* US keyboard (as HID standard) */
#define KEYMAP_SIZE (152)
const KEYMAP keymap[KEYMAP_SIZE] = {
{0, 0}, /* NUL */
{0, 0}, /* SOH */
{0, 0}, /* STX */
{0, 0}, /* ETX */
{0, 0}, /* EOT */
{0, 0}, /* ENQ */
{0, 0}, /* ACK */
{0, 0}, /* BEL */
{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */
{0x2b, 0}, /* TAB */ /* Keyboard Tab */
{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */
{0, 0}, /* VT */
{0, 0}, /* FF */
{0, 0}, /* CR */
{0, 0}, /* SO */
{0, 0}, /* SI */
{0, 0}, /* DEL */
{0, 0}, /* DC1 */
{0, 0}, /* DC2 */
{0, 0}, /* DC3 */
{0, 0}, /* DC4 */
{0, 0}, /* NAK */
{0, 0}, /* SYN */
{0, 0}, /* ETB */
{0, 0}, /* CAN */
{0, 0}, /* EM */
{0, 0}, /* SUB */
{0, 0}, /* ESC */
{0, 0}, /* FS */
{0, 0}, /* GS */
{0, 0}, /* RS */
{0, 0}, /* US */
{0x2c, 0}, /* */
{0x1e, KEY_SHIFT}, /* ! */
{0x34, KEY_SHIFT}, /* " */
{0x20, KEY_SHIFT}, /* # */
{0x21, KEY_SHIFT}, /* $ */
{0x22, KEY_SHIFT}, /* % */
{0x24, KEY_SHIFT}, /* & */
{0x34, 0}, /* ' */
{0x26, KEY_SHIFT}, /* ( */
{0x27, KEY_SHIFT}, /* ) */
{0x25, KEY_SHIFT}, /* * */
{0x2e, KEY_SHIFT}, /* + */
{0x36, 0}, /* , */
{0x2d, 0}, /* - */
{0x37, 0}, /* . */
{0x38, 0}, /* / */
{0x27, 0}, /* 0 */
{0x1e, 0}, /* 1 */
{0x1f, 0}, /* 2 */
{0x20, 0}, /* 3 */
{0x21, 0}, /* 4 */
{0x22, 0}, /* 5 */
{0x23, 0}, /* 6 */
{0x24, 0}, /* 7 */
{0x25, 0}, /* 8 */
{0x26, 0}, /* 9 */
{0x33, KEY_SHIFT}, /* : */
{0x33, 0}, /* ; */
{0x36, KEY_SHIFT}, /* < */
{0x2e, 0}, /* = */
{0x37, KEY_SHIFT}, /* > */
{0x38, KEY_SHIFT}, /* ? */
{0x1f, KEY_SHIFT}, /* @ */
{0x04, KEY_SHIFT}, /* A */
{0x05, KEY_SHIFT}, /* B */
{0x06, KEY_SHIFT}, /* C */
{0x07, KEY_SHIFT}, /* D */
{0x08, KEY_SHIFT}, /* E */
{0x09, KEY_SHIFT}, /* F */
{0x0a, KEY_SHIFT}, /* G */
{0x0b, KEY_SHIFT}, /* H */
{0x0c, KEY_SHIFT}, /* I */
{0x0d, KEY_SHIFT}, /* J */
{0x0e, KEY_SHIFT}, /* K */
{0x0f, KEY_SHIFT}, /* L */
{0x10, KEY_SHIFT}, /* M */
{0x11, KEY_SHIFT}, /* N */
{0x12, KEY_SHIFT}, /* O */
{0x13, KEY_SHIFT}, /* P */
{0x14, KEY_SHIFT}, /* Q */
{0x15, KEY_SHIFT}, /* R */
{0x16, KEY_SHIFT}, /* S */
{0x17, KEY_SHIFT}, /* T */
{0x18, KEY_SHIFT}, /* U */
{0x19, KEY_SHIFT}, /* V */
{0x1a, KEY_SHIFT}, /* W */
{0x1b, KEY_SHIFT}, /* X */
{0x1c, KEY_SHIFT}, /* Y */
{0x1d, KEY_SHIFT}, /* Z */
{0x2f, 0}, /* [ */
{0x31, 0}, /* \ */
{0x30, 0}, /* ] */
{0x23, KEY_SHIFT}, /* ^ */
{0x2d, KEY_SHIFT}, /* _ */
{0x35, 0}, /* ` */
{0x04, 0}, /* a */
{0x05, 0}, /* b */
{0x06, 0}, /* c */
{0x07, 0}, /* d */
{0x08, 0}, /* e */
{0x09, 0}, /* f */
{0x0a, 0}, /* g */
{0x0b, 0}, /* h */
{0x0c, 0}, /* i */
{0x0d, 0}, /* j */
{0x0e, 0}, /* k */
{0x0f, 0}, /* l */
{0x10, 0}, /* m */
{0x11, 0}, /* n */
{0x12, 0}, /* o */
{0x13, 0}, /* p */
{0x14, 0}, /* q */
{0x15, 0}, /* r */
{0x16, 0}, /* s */
{0x17, 0}, /* t */
{0x18, 0}, /* u */
{0x19, 0}, /* v */
{0x1a, 0}, /* w */
{0x1b, 0}, /* x */
{0x1c, 0}, /* y */
{0x1d, 0}, /* z */
{0x2f, KEY_SHIFT}, /* { */
{0x31, KEY_SHIFT}, /* | */
{0x30, KEY_SHIFT}, /* } */
{0x35, KEY_SHIFT}, /* ~ */
{0,0}, /* DEL */
{0x3a, 0}, /* F1 */
{0x3b, 0}, /* F2 */
{0x3c, 0}, /* F3 */
{0x3d, 0}, /* F4 */
{0x3e, 0}, /* F5 */
{0x3f, 0}, /* F6 */
{0x40, 0}, /* F7 */
{0x41, 0}, /* F8 */
{0x42, 0}, /* F9 */
{0x43, 0}, /* F10 */
{0x44, 0}, /* F11 */
{0x45, 0}, /* F12 */
{0x46, 0}, /* PRINT_SCREEN */
{0x47, 0}, /* SCROLL_LOCK */
{0x39, 0}, /* CAPS_LOCK */
{0x53, 0}, /* NUM_LOCK */
{0x49, 0}, /* INSERT */
{0x4a, 0}, /* HOME */
{0x4b, 0}, /* PAGE_UP */
{0x4e, 0}, /* PAGE_DOWN */
{0x4f, 0}, /* RIGHT_ARROW */
{0x50, 0}, /* LEFT_ARROW */
{0x51, 0}, /* DOWN_ARROW */
{0x52, 0}, /* UP_ARROW */
};
#else
/* UK keyboard */
#define KEYMAP_SIZE (152)
const KEYMAP keymap[KEYMAP_SIZE] = {
{0, 0}, /* NUL */
{0, 0}, /* SOH */
{0, 0}, /* STX */
{0, 0}, /* ETX */
{0, 0}, /* EOT */
{0, 0}, /* ENQ */
{0, 0}, /* ACK */
{0, 0}, /* BEL */
{0x2a, 0}, /* BS */ /* Keyboard Delete (Backspace) */
{0x2b, 0}, /* TAB */ /* Keyboard Tab */
{0x28, 0}, /* LF */ /* Keyboard Return (Enter) */
{0, 0}, /* VT */
{0, 0}, /* FF */
{0, 0}, /* CR */
{0, 0}, /* SO */
{0, 0}, /* SI */
{0, 0}, /* DEL */
{0, 0}, /* DC1 */
{0, 0}, /* DC2 */
{0, 0}, /* DC3 */
{0, 0}, /* DC4 */
{0, 0}, /* NAK */
{0, 0}, /* SYN */
{0, 0}, /* ETB */
{0, 0}, /* CAN */
{0, 0}, /* EM */
{0, 0}, /* SUB */
{0, 0}, /* ESC */
{0, 0}, /* FS */
{0, 0}, /* GS */
{0, 0}, /* RS */
{0, 0}, /* US */
{0x2c, 0}, /* */
{0x1e, KEY_SHIFT}, /* ! */
{0x1f, KEY_SHIFT}, /* " */
{0x32, 0}, /* # */
{0x21, KEY_SHIFT}, /* $ */
{0x22, KEY_SHIFT}, /* % */
{0x24, KEY_SHIFT}, /* & */
{0x34, 0}, /* ' */
{0x26, KEY_SHIFT}, /* ( */
{0x27, KEY_SHIFT}, /* ) */
{0x25, KEY_SHIFT}, /* * */
{0x2e, KEY_SHIFT}, /* + */
{0x36, 0}, /* , */
{0x2d, 0}, /* - */
{0x37, 0}, /* . */
{0x38, 0}, /* / */
{0x27, 0}, /* 0 */
{0x1e, 0}, /* 1 */
{0x1f, 0}, /* 2 */
{0x20, 0}, /* 3 */
{0x21, 0}, /* 4 */
{0x22, 0}, /* 5 */
{0x23, 0}, /* 6 */
{0x24, 0}, /* 7 */
{0x25, 0}, /* 8 */
{0x26, 0}, /* 9 */
{0x33, KEY_SHIFT}, /* : */
{0x33, 0}, /* ; */
{0x36, KEY_SHIFT}, /* < */
{0x2e, 0}, /* = */
{0x37, KEY_SHIFT}, /* > */
{0x38, KEY_SHIFT}, /* ? */
{0x34, KEY_SHIFT}, /* @ */
{0x04, KEY_SHIFT}, /* A */
{0x05, KEY_SHIFT}, /* B */
{0x06, KEY_SHIFT}, /* C */
{0x07, KEY_SHIFT}, /* D */
{0x08, KEY_SHIFT}, /* E */
{0x09, KEY_SHIFT}, /* F */
{0x0a, KEY_SHIFT}, /* G */
{0x0b, KEY_SHIFT}, /* H */
{0x0c, KEY_SHIFT}, /* I */
{0x0d, KEY_SHIFT}, /* J */
{0x0e, KEY_SHIFT}, /* K */
{0x0f, KEY_SHIFT}, /* L */
{0x10, KEY_SHIFT}, /* M */
{0x11, KEY_SHIFT}, /* N */
{0x12, KEY_SHIFT}, /* O */
{0x13, KEY_SHIFT}, /* P */
{0x14, KEY_SHIFT}, /* Q */
{0x15, KEY_SHIFT}, /* R */
{0x16, KEY_SHIFT}, /* S */
{0x17, KEY_SHIFT}, /* T */
{0x18, KEY_SHIFT}, /* U */
{0x19, KEY_SHIFT}, /* V */
{0x1a, KEY_SHIFT}, /* W */
{0x1b, KEY_SHIFT}, /* X */
{0x1c, KEY_SHIFT}, /* Y */
{0x1d, KEY_SHIFT}, /* Z */
{0x2f, 0}, /* [ */
{0x64, 0}, /* \ */
{0x30, 0}, /* ] */
{0x23, KEY_SHIFT}, /* ^ */
{0x2d, KEY_SHIFT}, /* _ */
{0x35, 0}, /* ` */
{0x04, 0}, /* a */
{0x05, 0}, /* b */
{0x06, 0}, /* c */
{0x07, 0}, /* d */
{0x08, 0}, /* e */
{0x09, 0}, /* f */
{0x0a, 0}, /* g */
{0x0b, 0}, /* h */
{0x0c, 0}, /* i */
{0x0d, 0}, /* j */
{0x0e, 0}, /* k */
{0x0f, 0}, /* l */
{0x10, 0}, /* m */
{0x11, 0}, /* n */
{0x12, 0}, /* o */
{0x13, 0}, /* p */
{0x14, 0}, /* q */
{0x15, 0}, /* r */
{0x16, 0}, /* s */
{0x17, 0}, /* t */
{0x18, 0}, /* u */
{0x19, 0}, /* v */
{0x1a, 0}, /* w */
{0x1b, 0}, /* x */
{0x1c, 0}, /* y */
{0x1d, 0}, /* z */
{0x2f, KEY_SHIFT}, /* { */
{0x64, KEY_SHIFT}, /* | */
{0x30, KEY_SHIFT}, /* } */
{0x32, KEY_SHIFT}, /* ~ */
{0,0}, /* DEL */
{0x3a, 0}, /* F1 */
{0x3b, 0}, /* F2 */
{0x3c, 0}, /* F3 */
{0x3d, 0}, /* F4 */
{0x3e, 0}, /* F5 */
{0x3f, 0}, /* F6 */
{0x40, 0}, /* F7 */
{0x41, 0}, /* F8 */
{0x42, 0}, /* F9 */
{0x43, 0}, /* F10 */
{0x44, 0}, /* F11 */
{0x45, 0}, /* F12 */
{0x46, 0}, /* PRINT_SCREEN */
{0x47, 0}, /* SCROLL_LOCK */
{0x39, 0}, /* CAPS_LOCK */
{0x53, 0}, /* NUM_LOCK */
{0x49, 0}, /* INSERT */
{0x4a, 0}, /* HOME */
{0x4b, 0}, /* PAGE_UP */
{0x4e, 0}, /* PAGE_DOWN */
{0x4f, 0}, /* RIGHT_ARROW */
{0x50, 0}, /* LEFT_ARROW */
{0x51, 0}, /* DOWN_ARROW */
{0x52, 0}, /* UP_ARROW */
};
#endif
uint8_t * USBKeyboard::reportDesc() {
static uint8_t reportDescriptor[] = {
USAGE_PAGE(1), 0x01, // Generic Desktop
USAGE(1), 0x06, // Keyboard
COLLECTION(1), 0x01, // Application
REPORT_ID(1), REPORT_ID_KEYBOARD,
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), 0x65,
USAGE_PAGE(1), 0x07, // Key Codes
USAGE_MINIMUM(1), 0x00,
USAGE_MAXIMUM(1), 0x65,
INPUT(1), 0x00, // Data, Array
END_COLLECTION(0),
// Media Control
USAGE_PAGE(1), 0x0C,
USAGE(1), 0x01,
COLLECTION(1), 0x01,
REPORT_ID(1), REPORT_ID_VOLUME,
USAGE_PAGE(1), 0x0C,
LOGICAL_MINIMUM(1), 0x00,
LOGICAL_MAXIMUM(1), 0x01,
REPORT_SIZE(1), 0x01,
REPORT_COUNT(1), 0x07,
USAGE(1), 0xB5, // Next Track
USAGE(1), 0xB6, // Previous Track
USAGE(1), 0xB7, // Stop
USAGE(1), 0xCD, // Play / Pause
USAGE(1), 0xE2, // Mute
USAGE(1), 0xE9, // Volume Up
USAGE(1), 0xEA, // Volume Down
INPUT(1), 0x02, // Input (Data, Variable, Absolute)
REPORT_COUNT(1), 0x01,
INPUT(1), 0x01,
END_COLLECTION(0),
};
reportLength = sizeof(reportDescriptor);
return reportDescriptor;
}
bool USBKeyboard::EP1_OUT_callback() {
uint32_t bytesRead = 0;
uint8_t led[65];
USBDevice::readEP(EPINT_OUT, led, &bytesRead, MAX_HID_REPORT_SIZE);
// we take led[1] because led[0] is the report ID
lock_status = led[1] & 0x07;
// We activate the endpoint to be able to recceive data
if (!readStart(EPINT_OUT, MAX_HID_REPORT_SIZE))
return false;
return true;
}
uint8_t USBKeyboard::lockStatus() {
return lock_status;
}
int USBKeyboard::_putc(int c) {
return keyCode(c, keymap[c].modifier);
}
bool USBKeyboard::keyCode(uint8_t key, uint8_t modifier) {
// Send a simulated keyboard keypress. Returns true if successful.
HID_REPORT report;
report.data[0] = REPORT_ID_KEYBOARD;
report.data[1] = modifier;
report.data[2] = 0;
report.data[3] = keymap[key].usage;
report.data[4] = 0;
report.data[5] = 0;
report.data[6] = 0;
report.data[7] = 0;
report.data[8] = 0;
report.length = 9;
if (!send(&report)) {
return false;
}
report.data[1] = 0;
report.data[3] = 0;
if (!send(&report)) {
return false;
}
return true;
}
bool USBKeyboard::mediaControl(MEDIA_KEY key) {
HID_REPORT report;
report.data[0] = REPORT_ID_VOLUME;
report.data[1] = (1 << key) & 0x7f;
report.length = 2;
if (!send(&report)) {
return false;
}
report.data[0] = REPORT_ID_VOLUME;
report.data[1] = 0;
report.length = 2;
return send(&report);
}
#define DEFAULT_CONFIGURATION (1)
#define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) \
+ (1 * INTERFACE_DESCRIPTOR_LENGTH) \
+ (1 * HID_DESCRIPTOR_LENGTH) \
+ (2 * ENDPOINT_DESCRIPTOR_LENGTH))
uint8_t * USBKeyboard::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_SELF_POWERED, // bmAttributes
C_POWER(0), // bMaxPowerHello World from Mbed
INTERFACE_DESCRIPTOR_LENGTH, // bLength
INTERFACE_DESCRIPTOR, // bDescriptorType
0x00, // bInterfaceNumber
0x00, // bAlternateSetting
0x02, // bNumEndpoints
HID_CLASS, // bInterfaceClass
1, // bInterfaceSubClass
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
LSB(reportDescLength()), // wDescriptorLength (LSB)
MSB(reportDescLength()), // wDescriptorLength (MSB)
ENDPOINT_DESCRIPTOR_LENGTH, // bLength
ENDPOINT_DESCRIPTOR, // bDescriptorType
PHY_TO_DESC(EPINT_IN), // bEndpointAddress
E_INTERRUPT, // bmAttributes
LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
1, // bInterval (milliseconds)
ENDPOINT_DESCRIPTOR_LENGTH, // bLength
ENDPOINT_DESCRIPTOR, // bDescriptorType
PHY_TO_DESC(EPINT_OUT), // bEndpointAddress
E_INTERRUPT, // bmAttributes
LSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (LSB)
MSB(MAX_PACKET_SIZE_EPINT), // wMaxPacketSize (MSB)
1, // bInterval (milliseconds)
};
return configurationDescriptor;
}