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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/xiudi/xd96/matrix.c
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@ -50,13 +50,16 @@ static void select_row(uint8_t row) {
}
static uint32_t read_cols(void) {
uint32_t state_1 = pca9555_readPins(IC2, PCA9555_PORT0);
uint32_t state_2 = pca9555_readPins(IC2, PCA9555_PORT1);
uint32_t state_3 = pca9555_readPins(IC1, 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);
// For the XD96 the pins are mapped to port expanders as follows:
// all 8 pins port 0 IC2, first 6 pins port 1 IC2, first 4 pins port 1 IC1
uint32_t state = (((state_3 & 0b00001111) << 14) | ((state_2 & 0b00111111) << 8) | state_1);
uint32_t state = ((((uint32_t)state_3 & 0b00001111) << 14) | (((uint32_t)state_2 & 0b00111111) << 8) | (uint32_t)state_1);
return (~state) & 0b111111111111111111;
}