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@@ -37,6 +37,11 @@ const pin_t amux_en_pins[] = AMUX_EN_PINS;
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const pin_t amux_n_col_sizes[] = AMUX_COL_CHANNELS_SIZES;
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const pin_t amux_n_col_channels[][AMUX_MAX_COLS_COUNT] = {AMUX_COL_CHANNELS};
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+#ifdef UNUSED_POSITIONS_LIST
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+const uint8_t UNUSED_POSITIONS[][2] = UNUSED_POSITIONS_LIST;
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+# define UNUSED_POSITIONS_COUNT (sizeof(UNUSED_POSITIONS) / sizeof(UNUSED_POSITIONS[0]))
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+#endif
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+
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#define AMUX_SEL_PINS_COUNT ARRAY_SIZE(amux_sel_pins)
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#define EXPECTED_AMUX_SEL_PINS_COUNT ceil(log2(AMUX_MAX_COLS_COUNT)
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// Checks for the correctness of the configuration
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@@ -70,6 +75,16 @@ void init_amux(void) {
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}
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}
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+// Disable all the unused rows
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+void disable_unused_row(uint8_t row) {
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+ // disable all the other rows apart from the current selected one
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+ for (uint8_t idx = 0; idx < MATRIX_ROWS; idx++) {
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+ if (idx != row) {
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+ gpio_write_pin_low(row_pins[idx]);
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+ }
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+ }
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+}
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+
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// Select the multiplexer channel of the specified multiplexer
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void select_amux_channel(uint8_t channel, uint8_t col) {
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// Get the channel for the specified multiplexer
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@@ -158,6 +173,10 @@ void ec_noise_floor(void) {
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sum += amux_n_col_sizes[i];
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uint8_t adjusted_col = col + sum;
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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+#ifdef UNUSED_POSITIONS_LIST
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+ if (is_unused_position(row, adjusted_col)) continue;
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+#endif
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+ disable_unused_row(row);
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ec_config.noise_floor[row][adjusted_col] += ec_readkey_raw(amux, row, col);
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}
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}
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@@ -180,11 +199,15 @@ bool ec_matrix_scan(matrix_row_t current_matrix[]) {
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for (uint8_t amux = 0; amux < AMUX_COUNT; amux++) {
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disable_unused_amux(amux);
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for (uint8_t col = 0; col < amux_n_col_sizes[amux]; col++) {
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+ uint8_t sum = 0;
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+ for (uint8_t i = 0; i < (amux > 0 ? amux : 0); i++)
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+ sum += amux_n_col_sizes[i];
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+ uint8_t adjusted_col = col + sum;
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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- uint8_t sum = 0;
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- for (uint8_t i = 0; i < (amux > 0 ? amux : 0); i++)
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- sum += amux_n_col_sizes[i];
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- uint8_t adjusted_col = col + sum;
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+#ifdef UNUSED_POSITIONS_LIST
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+ if (is_unused_position(row, adjusted_col)) continue;
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+#endif
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+ disable_unused_row(row);
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sw_value[row][adjusted_col] = ec_readkey_raw(amux, row, col);
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if (ec_config.bottoming_calibration) {
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@@ -229,7 +252,7 @@ uint16_t ec_readkey_raw(uint8_t channel, uint8_t row, uint8_t col) {
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}
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// Update press/release state of key
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-bool ec_update_key(matrix_row_t* current_row, uint8_t row, uint8_t col, uint16_t sw_value) {
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+bool ec_update_key(matrix_row_t *current_row, uint8_t row, uint8_t col, uint16_t sw_value) {
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bool current_state = (*current_row >> col) & 1;
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// Real Time Noise Floor Calibration
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@@ -266,7 +289,7 @@ bool ec_update_key(matrix_row_t* current_row, uint8_t row, uint8_t col, uint16_t
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uprintf("Key pressed: %d, %d, %d\n", row, col, sw_value);
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}
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// Has key moved up enough to be released?
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- else if (sw_value < ec_config.extremum[row][col] - ec_config.mode_1_release_offset) {
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+ else if (sw_value < ec_config.extremum[row][col] - ec_config.rescaled_mode_1_release_offset[row][col]) {
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ec_config.extremum[row][col] = sw_value;
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*current_row &= ~(1 << col);
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uprintf("Key released: %d, %d, %d\n", row, col, sw_value);
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@@ -280,7 +303,7 @@ bool ec_update_key(matrix_row_t* current_row, uint8_t row, uint8_t col, uint16_t
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ec_config.extremum[row][col] = sw_value;
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}
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// Has key moved down enough to be pressed?
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- else if (sw_value > ec_config.extremum[row][col] + ec_config.mode_1_actuation_offset) {
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+ else if (sw_value > ec_config.extremum[row][col] + ec_config.rescaled_mode_1_actuation_offset[row][col]) {
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ec_config.extremum[row][col] = sw_value;
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*current_row |= (1 << col);
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uprintf("Key pressed: %d, %d, %d\n", row, col, sw_value);
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@@ -312,6 +335,18 @@ void ec_print_matrix(void) {
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print("\n");
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}
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+// Check if the position is unused
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+#ifdef UNUSED_POSITIONS_LIST
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+bool is_unused_position(uint8_t row, uint8_t col) {
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+ for (uint8_t i = 0; i < UNUSED_POSITIONS_COUNT; i++) {
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+ if (UNUSED_POSITIONS[i][0] == row && UNUSED_POSITIONS[i][1] == col) {
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+ return true;
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+ }
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+ }
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+ return false;
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+}
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+#endif
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+
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// Rescale the value to a different range
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uint16_t rescale(uint16_t x, uint16_t in_min, uint16_t in_max, uint16_t out_min, uint16_t out_max) {
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return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
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