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

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Joel Challis 2022-02-09 19:55:39 +00:00 • committed by GitHub
parent 96afc7a03a
commit 1f67de2001
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6 changed files with 113 additions and 62 deletions
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11
keyboards/switchplate/southpaw_65/matrix.c
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@ -51,11 +51,14 @@ static void select_row(uint8_t row) {
static uint32_t read_cols(void) {
//Read column inputs. Pins 13-31 are used. Split across both ICs but they are sequential
uint32_t state_1 = pca9555_readPins(IC1, PCA9555_PORT1);
uint32_t state_2 = pca9555_readPins(IC2, PCA9555_PORT0);
uint32_t state_3 = pca9555_readPins(IC2, PCA9555_PORT1);
uint8_t state_1 = 0;
uint8_t state_2 = 0;
uint8_t state_3 = 0;
pca9555_readPins(IC2, PCA9555_PORT0, &state_1);
pca9555_readPins(IC2, PCA9555_PORT1, &state_2);
pca9555_readPins(IC1, PCA9555_PORT1, &state_3);
uint32_t state = (((state_3 & 0b01111111) << 12) | (state_2 << 4) | ((state_1 & 0b11110000) >> 4));
uint32_t state = ((((uint32_t)state_3 & 0b01111111) << 12) | ((uint32_t)state_2 << 4) | (((uint32_t)state_1 & 0b11110000) >> 4));
return ~state;
}