summaryrefslogtreecommitdiff
path: root/keyboards/handwired/pterodactyl/matrix.c
diff options
context:
space:
mode:
Diffstat (limited to 'keyboards/handwired/pterodactyl/matrix.c')
-rw-r--r--keyboards/handwired/pterodactyl/matrix.c83
1 files changed, 20 insertions, 63 deletions
diff --git a/keyboards/handwired/pterodactyl/matrix.c b/keyboards/handwired/pterodactyl/matrix.c
index bc98bdd634..0dff65eda6 100644
--- a/keyboards/handwired/pterodactyl/matrix.c
+++ b/keyboards/handwired/pterodactyl/matrix.c
@@ -29,9 +29,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
#define I2C_TIMEOUT 100
-#define I2C_ADDR 0b0100000
-#define I2C_ADDR_WRITE ( (I2C_ADDR<<1) | I2C_WRITE )
-#define I2C_ADDR_READ ( (I2C_ADDR<<1) | I2C_READ )
+#define I2C_ADDR (0b0100000<<1)
#define IODIRA 0x00 // i/o direction register
#define IODIRB 0x01
#define GPPUA 0x0C // GPIO pull-up resistor register
@@ -159,9 +157,6 @@ void init_expander(void) {
#endif
}
- expander_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(IODIRA, I2C_TIMEOUT); if (expander_status) goto out;
-
/*
Pin direction and pull-up depends on both the diode direction
and on whether the column register is GPIOA or GPIOB
@@ -176,50 +171,27 @@ void init_expander(void) {
#if (EXPANDER_COL_REGISTER == GPIOA)
# if (DIODE_DIRECTION == COL2ROW)
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
+ uint8_t data[] = { expander_input_pin_mask, 0};
# elif (DIODE_DIRECTION == ROW2COL)
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
+ uint8_t data[] = { 0, expander_input_pin_mask};
# endif
#elif (EXPANDER_COL_REGISTER == GPIOB)
# if (DIODE_DIRECTION == COL2ROW)
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
+ uint8_t data[] = { 0, expander_input_pin_mask};
# elif (DIODE_DIRECTION == ROW2COL)
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
-# endif
-#endif
-
- i2c_stop();
-
- // set pull-up
- // - unused : off : 0
- // - input : on : 1
- // - driving : off : 0
- expander_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(GPPUA, I2C_TIMEOUT); if (expander_status) goto out;
-#if (EXPANDER_COL_REGISTER == GPIOA)
-# if (DIODE_DIRECTION == COL2ROW)
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
-# elif (DIODE_DIRECTION == ROW2COL)
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
-# endif
-#elif (EXPANDER_COL_REGISTER == GPIOB)
-# if (DIODE_DIRECTION == COL2ROW)
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
-# elif (DIODE_DIRECTION == ROW2COL)
- expander_status = i2c_write(expander_input_pin_mask, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(0, I2C_TIMEOUT); if (expander_status) goto out;
+ uint8_t data[] = { expander_input_pin_mask, 0};
# endif
#endif
+ expander_status = i2c_writeReg(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT);
+
+ if (!expander_status) {
+ // set pull-up
+ // - unused : off : 0
+ // - input : on : 1
+ // - driving : off : 0
+ expander_status = i2c_writeReg(I2C_ADDR, GPPUA, data, sizeof(data), I2C_TIMEOUT);
+ }
-out:
- i2c_stop();
}
uint8_t matrix_scan(void)
@@ -332,14 +304,9 @@ static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
// Read columns from expander, unless it's in an error state
if (! expander_status) {
- expander_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(EXPANDER_COL_REGISTER, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT); if (expander_status) goto out;
-
- current_matrix[current_row] |= (~i2c_read_nack(I2C_TIMEOUT)) & expander_input_pin_mask;
-
- out:
- i2c_stop();
+ uint8_t data;
+ i2c_readReg(I2C_ADDR, EXPANDER_COL_REGISTER, &data, 1, I2C_TIMEOUT);
+ current_matrix[current_row] |= (~data) & expander_input_pin_mask;
}
// Read columns from onboard pins
@@ -361,11 +328,8 @@ static void select_row(uint8_t row) {
if (! expander_status) {
// set active row low : 0
// set other rows hi-Z : 1
- expander_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(EXPANDER_ROW_REGISTER, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(0xFF & ~(1<<row), I2C_TIMEOUT); if (expander_status) goto out;
- out:
- i2c_stop();
+ uint8_t data = 0xFF & ~(1<<row);
+ i2c_writeReg(I2C_ADDR, EXPANDER_ROW_REGISTER, &data, 1, I2C_TIMEOUT);
}
// select on teensy
@@ -421,14 +385,7 @@ static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
return false;
}
- expander_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_write(EXPANDER_ROW_REGISTER, I2C_TIMEOUT); if (expander_status) goto out;
- expander_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT); if (expander_status) goto out;
- column_state = i2c_read_nack(I2C_TIMEOUT);
-
- out:
- i2c_stop();
-
+ i2c_writeReg(I2C_ADDR, EXPANDER_ROW_REGISTER, &column_state, 1, I2C_TIMEOUT);
column_state = ~column_state;
} else {
for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 20:22:31 +0000