From d28684da90536b54ff7d145decb80e0bd9290996 Mon Sep 17 00:00:00 2001 From: Jack Humbert Date: Thu, 10 Jan 2019 11:26:40 -0500 Subject: Adds support for JacoBurge's TouchPad (#4186) * add touchpad * progress * working with leds and vibrations * adds readme * Update keyboards/touchpad/readme.md Co-Authored-By: jackhumbert * updates --- keyboards/touchpad/matrix.c | 291 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 291 insertions(+) create mode 100644 keyboards/touchpad/matrix.c (limited to 'keyboards/touchpad/matrix.c') diff --git a/keyboards/touchpad/matrix.c b/keyboards/touchpad/matrix.c new file mode 100644 index 000000000..3af4c5c3c --- /dev/null +++ b/keyboards/touchpad/matrix.c @@ -0,0 +1,291 @@ +/* +MIT License +Copyright (c) 2018, JacoBurge +Adapted for QMK by Jack Humbert in 2018 + +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 "matrix.h" +#include "i2c_master.h" +#include "quantum.h" + +#define VIBRATE_LENGTH 50 //Defines number of interrupts motor will vibrate for, must be bigger than 8 for correct operation +volatile uint8_t vibrate = 0; //Trigger vibration in interrupt + +static matrix_row_t matrix[MATRIX_ROWS]; + +const uint8_t SENr[6] = {1, 2, 3, 5, 6, 7};//Maps capacitive pads to pins +const uint8_t SENc[6] = {0, 4, 8, 9, 10, 11}; + +volatile uint8_t LEDs[6][6] = {{0}};//Stores current LED values + +//Read data from the cap touch IC +uint8_t readDataFromTS(uint8_t reg) { + uint8_t rx[1] = { 0 }; + if (i2c_readReg(0x1C << 1, reg, rx, 1, 100) == 0) { + return rx[0]; + } + return 0; +} + +//Write data to cap touch IC +uint8_t writeDataToTS(uint8_t reg, uint8_t data) { + uint8_t tx[2] = { reg, data }; + if (i2c_transmit(0x1C << 1, tx, 2, 100) == 0) { + return 1; + } else { + return 0; + } +} + + +uint8_t checkTSPres(void) { + return (readDataFromTS(0x00) == 0x3E); +} + +uint8_t capSetup(void) { + + uint8_t temp_return = checkTSPres(); + + if (temp_return == 1) { + // Perform measurements every 16ms + writeDataToTS(0x08, 1); + + // Increase detection integrator value + writeDataToTS(0x0B, 1); + + // Oversample to gain two bits for columns + writeDataToTS(0x28, 0x42); + writeDataToTS(0x29, 0x00); + writeDataToTS(0x2A, 0x00); + writeDataToTS(0x2B, 0x00); + writeDataToTS(0x2C, 0x42); + writeDataToTS(0x2D, 0x00); + writeDataToTS(0x2E, 0x00); + writeDataToTS(0x2F, 0x00); + writeDataToTS(0x30, 0x42); + writeDataToTS(0x31, 0x42); + writeDataToTS(0x32, 0x42); + writeDataToTS(0x33, 0x42); + + // Recalibration if touch detected for more than 8 seconds n*0.16s + writeDataToTS(0x0C, 50); + + // Enable keys and set key groups + writeDataToTS(0x1C, 0x00 | 0x04); + writeDataToTS(0x1D, 0x00 | 0x08); + writeDataToTS(0x1E, 0x00 | 0x08); + writeDataToTS(0x1F, 0x00 | 0x08); + writeDataToTS(0x20, 0x00 | 0x04); + writeDataToTS(0x21, 0x00 | 0x08); + writeDataToTS(0x22, 0x00 | 0x08); + writeDataToTS(0x23, 0x00 | 0x08); + writeDataToTS(0x24, 0x00 | 0x04); + writeDataToTS(0x25, 0x00 | 0x04); + writeDataToTS(0x26, 0x00 | 0x04); + writeDataToTS(0x27, 0x00 | 0x04); + + } + return temp_return; +} + +__attribute__ ((weak)) +void matrix_init_user(void) {} + +__attribute__ ((weak)) +void matrix_scan_user(void) {} + +__attribute__ ((weak)) +void matrix_init_kb(void) { + matrix_init_user(); +} + +__attribute__ ((weak)) +void matrix_scan_kb(void) { + matrix_scan_user(); +} + +void matrix_init(void) { + + i2c_init(); + + //Motor enable + setPinOutput(E6); + //Motor PWM + setPinOutput(D7); + + //Power LED + setPinOutput(B7); + writePinHigh(B7); + + //LEDs Columns + setPinOutput(F7); + setPinOutput(F6); + setPinOutput(F5); + setPinOutput(F4); + setPinOutput(F1); + setPinOutput(F0); + + //LEDs Rows + setPinOutput(D6); + setPinOutput(B4); + setPinOutput(B5); + setPinOutput(B6); + setPinOutput(C6); + setPinOutput(C7); + + //Capacitive Interrupt + setPinInput(D2); + + capSetup(); + writeDataToTS(0x06, 0x12); //Calibrate capacitive touch IC + + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + + matrix_init_quantum(); +} + + +uint16_t touchDetectionRoutine(void) { + uint16_t data; + uint8_t temp1, temp2; + + temp1 = readDataFromTS(0x04); + temp2 = readDataFromTS(0x03); + data = temp1; + data = (data << 8) | temp2; + return data; + +} + +//Process raw capacitive data, map pins to rows and columns +void decodeArray(uint16_t dataIn, uint8_t *column, uint8_t *row) { + uint8_t i1 = 20, i2 = 20; + for (uint8_t i = 0; i < 12; i++) { + if ((dataIn & 0b1) == 1) { + if (i1 == 20) { + i1 = i; + } else if (i2 == 20) { + i2 = i; + } + } + dataIn = dataIn >> 1; + } + + for (uint8_t j = 0; j < 6; j++) { + if (SENr[j] == i1 || SENr[j] == i2) { + *row = j; + } + if (SENc[j] == i1 || SENc[j] == i2) { + *column = j; + } + } +} + +void touchClearCurrentDetections(void) { + readDataFromTS(0x05); + readDataFromTS(0x02); + readDataFromTS(0x03); + readDataFromTS(0x04); +} + +//Check interrupt pin +uint8_t isTouchChangeDetected(void) { + return !readPin(D2); +} + +uint8_t matrix_scan(void) { + if (isTouchChangeDetected()) { + uint16_t dataIn = touchDetectionRoutine(); + if ((dataIn & 0b111100010001) > 0 && (dataIn & 0b000011101110) > 0) { + uint8_t column = 10, row = 10; + decodeArray(dataIn, &column, &row); + if (column != 10 && row != 10) { + vibrate = VIBRATE_LENGTH; //Trigger vibration + matrix[row] = _BV(column); + } else { + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + } + } else { + memset(matrix, 0, MATRIX_ROWS * sizeof(matrix_row_t)); + } + touchClearCurrentDetections(); + } + + for (uint8_t c = 0; c < 6; c++) { + for (uint8_t r = 0; r < 6; r++) { + switch (r) { + case 0: writePin(D6, matrix_is_on(r, c)); break; + case 1: writePin(B4, matrix_is_on(r, c)); break; + case 2: writePin(B5, matrix_is_on(r, c)); break; + case 3: writePin(B6, matrix_is_on(r, c)); break; + case 4: writePin(C6, matrix_is_on(r, c)); break; + case 5: writePin(C7, matrix_is_on(r, c)); break; + } + + switch (c) { + case 0: writePin(F5, !matrix_is_on(r, c)); break; + case 1: writePin(F4, !matrix_is_on(r, c)); break; + case 2: writePin(F1, !matrix_is_on(r, c)); break; + case 3: writePin(F0, !matrix_is_on(r, c)); break; + case 4: writePin(F6, !matrix_is_on(r, c)); break; + case 5: writePin(F7, !matrix_is_on(r, c)); break; + } + } + } + + if (vibrate == VIBRATE_LENGTH) { + writePinHigh(E6); + writePinHigh(D7); + vibrate--; + } else if (vibrate > 0) { + vibrate--; + } else if (vibrate == 0) { + writePinLow(D7); + writePinLow(E6); + } + + matrix_scan_quantum(); + + return 1; + +} + +bool matrix_is_on(uint8_t row, uint8_t col) { + return (matrix[row] & (1<