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Align existing pca9555 driver to better match mcp23018 API (#16277)

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This commit is contained in:
Joel Challis
2022-02-09 19:55:39 +00:00
committed by GitHub
parent 96afc7a03a
commit 1f67de2001
6 changed files with 113 additions and 62 deletions
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8
keyboards/moon/matrix.c
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@@ -158,10 +158,12 @@ static void select_row(uint8_t row) {
}
static uint16_t read_cols(void) {
uint16_t state_1 = pca9555_readPins(IC2, PCA9555_PORT0);
uint16_t state_2 = pca9555_readPins(IC2, PCA9555_PORT1);
uint8_t state_1 = 0;
uint8_t state_2 = 0;
pca9555_readPins(IC2, PCA9555_PORT0, &state_1);
pca9555_readPins(IC2, PCA9555_PORT1, &state_2);
uint16_t state = ((state_1 & PORT0_COLS_MASK) << 3) | ((state_2 & PORT1_COLS_MASK));
uint16_t state = (((uint16_t)state_1 & PORT0_COLS_MASK) << 3) | (((uint16_t)state_2 & PORT1_COLS_MASK));
// A low pin indicates an active column
return (~state) & COLS_MASK;