medvedych/USB_Laptop_Keyboard_Controller
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Added check for full slots

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Frank Adams 2019-07-16 22:40:46 -07:00 committed by GitHub
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commit 592ca828ae
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1 changed files with 11 additions and 5 deletions
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16
Example_Keyboards/Lenovo_ThinkPad_T61/Teensy 3p2/Lenovo_T61_KBandTP.ino
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@ -9,19 +9,20 @@
See the License for the specific language governing permissions and
limitations under the License.
*/
// This software controls a Lenovo ThinkPad T61 Laptop Keyboard and PS/2 Trackpoint using a Teensy 3.2 on
// This software controls a Lenovo ThinkPad T61 Laptop Keyboard and PS/2 Trackpoint using a Teensy LC on
// a daughterboard with a 44 pin FPC connector. The keyboard part number is 42T3177.
// This routine uses the Teensyduino "Micro-Manager Method" to send Normal and Modifier
// keys over USB. Only the volume control multi-media keys are supported by this routine.
// Description of Teensyduino keyboard functions is at www.pjrc.com/teensy/td_keyboard.html
// The ps/2 code uses the USB PJRC Mouse functions at www.pjrc.com/teensy/td_mouse.html
// The ps/2 code has a watchdog timer so the code can't hang if a clock edge is missed.
// In the Arduino IDE, select Tools, Teensy 3.2. Also under Tools, select Keyboard+Mouse+Joystick
// In the Arduino IDE, select Tools, Teensy LC. Also under Tools, select Keyboard+Mouse+Joystick
//
// Revision History
// Rev 1.0 - Nov 23, 2018 - Original Release
// Rev 1.1 - Dec 2, 2018 - Replaced ps/2 trackpoint code from playground arduino with my own code
// Rev 1.2 - May 27, 2019 - Changed comment that mistakenly refered to a Teensy LC (should say 3.2)
// Rev 1.2 - July 16, 2019 - Check if slots are full when detecting a key press
//
// Trackpoint signals
#define TP_DATA 18 // ps/2 data to trackpoint
#define TP_CLK 19 // ps/2 clock to trackpoint
@ -461,7 +462,12 @@ void clear_slot(int key) {
else if (slot6 == key) {
slot6 = 0;
}
slots_full = LOW;
if (!slot1 || !slot2 || !slot3 || !slot4 || !slot5 || !slot6) {
slots_full = LOW; // slots are not full
}
else {
slots_full = HIGH; // slots are full
}
}
//
// Function to load the modifier key name into the appropriate mod variable
@ -614,7 +620,7 @@ void loop() {
//
// ***********Normal keys section
else if (normal[x][y] != 0) { // check if normal key exists at this location in the array (a non-zero value)
if (!digitalRead(Col_IO[y]) && (old_key[x][y])) { // check if key is pressed and was not previously pressed
if (!digitalRead(Col_IO[y]) && (old_key[x][y]) && (!slots_full)) { // check if key pressed and not previously pressed and slots not full
old_key[x][y] = LOW; // Save state of key as "pressed"
if ((normal[x][y] == KEY_SCROLL_LOCK) && (!Fn_pressed)) { // check for special case of Num Lock Key
load_slot(KEY_NUM_LOCK); // update first available slot with Num Lock instead of Scroll Lock