Added Keyboard support for all modifier and all common non-printing keys.
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@ -401,18 +401,32 @@ const uint8_t _asciimap[128] =
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uint8_t USBPutChar(uint8_t c);
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// press() adds the specified key (printing, non-printing, or modifier)
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// to the persistent key report and sends the report. Because of the way
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// USB HID works, the host acts like the key remains pressed until we
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// call release(), releaseAll(), or otherwise clear the report and resend.
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size_t Keyboard_::press(uint8_t k)
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{
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uint8_t i;
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k = pgm_read_byte(_asciimap + k);
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if (!k) {
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setWriteError();
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return 0;
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}
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if (k & 0x80) {
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_keyReport.modifiers |= KEY_MODIFIER_LEFT_SHIFT;
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k &= 0x7F;
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if (k >= 136) { // it's a non-printing key (not a modifier)
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k = k - 136;
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} else if (k >= 128) { // it's a modifier key
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_keyReport.modifiers |= (1<<(k-128));
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k = 0;
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} else { // it's a printing key
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k = pgm_read_byte(_asciimap + k);
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if (!k) {
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setWriteError();
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return 0;
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}
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if (k & 0x80) {
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_keyReport.modifiers |= 0x02; // the left shift modifier
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k &= 0x7F;
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}
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}
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// Add k to the key report only if it's not already present
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// and if there is an empty slot.
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if (_keyReport.keys[0] != k && _keyReport.keys[1] != k &&
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_keyReport.keys[2] != k && _keyReport.keys[3] != k &&
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_keyReport.keys[4] != k && _keyReport.keys[5] != k) {
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@ -432,17 +446,40 @@ size_t Keyboard_::press(uint8_t k)
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return 1;
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}
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// release() takes the specified key out of the persistent key report and
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// sends the report. This tells the OS the key is no longer pressed and that
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// it shouldn't be repeated any more.
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size_t Keyboard_::release(uint8_t k)
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{
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/*
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uint8_t i;
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k = pgm_read_byte(_asciimap + k);
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if (!k) {
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return 0;
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}
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if (k & 0x80) {
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_keyReport.modifiers |= KEY_MODIFIER_LEFT_SHIFT;
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_keyReport.modifiers |= 0x02; // the left shift modifier
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k &= 0x7F;
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}
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*/
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uint8_t i;
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if (k >= 136) { // it's a non-printing key (not a modifier)
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k = k - 136;
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} else if (k >= 128) { // it's a modifier key
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_keyReport.modifiers &= ~(1<<(k-128));
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k = 0;
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} else { // it's a printing key
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k = pgm_read_byte(_asciimap + k);
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if (!k) {
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return 0;
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}
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if (k & 0x80) {
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_keyReport.modifiers &= ~(0x02); // the left shift modifier
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k &= 0x7F;
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}
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}
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// Test the key report to see if k is present. Clear it if it exists.
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for (i=0; i<6; i++) {
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if (_keyReport.keys[i] == k) {
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_keyReport.keys[i] = 0x00;
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@ -468,6 +505,7 @@ void Keyboard_::releaseAll(void)
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sendReport(&_keyReport);
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}
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// type() does a press and release of the specified key.
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size_t Keyboard_::type(uint8_t c)
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{
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releaseAll();
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@ -70,14 +70,42 @@ extern Mouse_ Mouse;
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//================================================================================
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// Keyboard
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#define KEY_MODIFIER_LEFT_CTRL 0x01
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#define KEY_MODIFIER_LEFT_SHIFT 0x02
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#define KEY_MODIFIER_LEFT_ALT 0x04
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#define KEY_MODIFIER_LEFT_GUI 0x08
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#define KEY_MODIFIER_RIGHT_CTRL 0x010
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#define KEY_MODIFIER_RIGHT_SHIFT 0x020
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#define KEY_MODIFIER_RIGHT_ALT 0x040
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#define KEY_MODIFIER_RIGHT_GUI 0x080
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#define KEY_LEFT_CTRL 0x80
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#define KEY_LEFT_SHIFT 0x81
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#define KEY_LEFT_ALT 0x82
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#define KEY_LEFT_GUI 0x83
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#define KEY_RIGHT_CTRL 0x84
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#define KEY_RIGHT_SHIFT 0x85
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#define KEY_RIGHT_ALT 0x86
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#define KEY_RIGHT_GUI 0x87
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#define KEY_UP_ARROW 0xDA
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#define KEY_DOWN_ARROW 0xD9
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#define KEY_LEFT_ARROW 0xD8
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#define KEY_RIGHT_ARROW 0xD7
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#define KEY_BACKSPACE 0xB2
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#define KEY_TAB 0xB3
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#define KEY_RETURN 0xB0
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#define KEY_ESC 0xB1
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#define KEY_INSERT 0xD1
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#define KEY_DELETE 0xD4
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#define KEY_PAGE_UP 0xD3
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#define KEY_PAGE_DOWN 0xD6
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#define KEY_HOME 0xD2
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#define KEY_END 0xD5
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#define KEY_CAPS_LOCK 0xC1
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#define KEY_F1 0xC2
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#define KEY_F2 0xC3
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#define KEY_F3 0xC4
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#define KEY_F4 0xC5
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#define KEY_F5 0xC6
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#define KEY_F6 0xC7
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#define KEY_F7 0xC8
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#define KEY_F8 0xC9
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#define KEY_F9 0xCA
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#define KEY_F10 0xCB
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#define KEY_F11 0xCC
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#define KEY_F12 0xCD
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// Low level key report: up to 6 keys and shift, ctrl etc at once
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typedef struct
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