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I2C driver cleanup (#21273)

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* remove i2c_start and i2c_stop from i2c drivers

* remove static i2c_address variable from chibios i2c driver
This commit is contained in:
David Hoelscher
2024-01-17 07:05:38 -06:00
committed by GitHub
parent 2b0965944d
commit e9bd7d7ad3
49 changed files with 280 additions and 603 deletions
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25
keyboards/handwired/frenchdev/frenchdev.c
View File

@@ -83,23 +83,16 @@ uint8_t init_mcp23018(void) {
// - unused : input : 1
// - input : input : 1
// - driving : output : 0
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(IODIRA, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
i2c_stop();
uint8_t data[] = {0b00000000, 0b00111111};
mcp23018_status = i2c_writeReg(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT);
// set pull-up
// - unused : on : 1
// - input : on : 1
// - driving : off : 0
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPPUA, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b00000000, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(0b00111111, I2C_TIMEOUT); if (mcp23018_status) goto out;
out:
i2c_stop();
if (!mcp23018_status) {
// set pull-up
// - unused : on : 1
// - input : on : 1
// - driving : off : 0
mcp23018_status = i2c_writeReg(I2C_ADDR, GPPUA, data, sizeof(data), I2C_TIMEOUT);
}
// SREG=sreg_prev;

4
keyboards/handwired/frenchdev/frenchdev.h
View File

@@ -7,9 +7,7 @@
#include <util/delay.h>
// I2C aliases and register addresses (see "mcp23018.md" on tmk repository)
#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

28
keyboards/handwired/frenchdev/matrix.c
View File

@@ -224,15 +224,9 @@ static matrix_row_t read_cols(uint8_t row)
return 0;
} else {
uint8_t data = 0;
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPIOB, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_start(I2C_ADDR_READ, I2C_TIMEOUT); if (mcp23018_status) goto out;
data = i2c_read_nack(I2C_TIMEOUT); if (mcp23018_status < 0) goto out;
data = ~((uint8_t)mcp23018_status);
mcp23018_status = I2C_STATUS_SUCCESS;
out:
i2c_stop();
return data;
mcp23018_status = i2c_readReg(I2C_ADDR, GPIOB, &data, 1, I2C_TIMEOUT);
return ~data;
}
} else {
// read from teensy
@@ -263,11 +257,10 @@ static void unselect_rows(void)
// do nothing
} else {
// set all rows hi-Z : 1
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPIOA, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write( 0xFF & ~(0<<8), I2C_TIMEOUT); if (mcp23018_status) goto out;
out:
i2c_stop();
uint8_t data;
data = 0xFF & ~(0<<8);
mcp23018_status = i2c_writeReg(I2C_ADDR, GPIOA, &data, 1, I2C_TIMEOUT);
}
// unselect on teensy
@@ -289,11 +282,8 @@ static void select_row(uint8_t row)
} else {
// set active row low : 0
// set other rows hi-Z : 1
mcp23018_status = i2c_start(I2C_ADDR_WRITE, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write(GPIOA, I2C_TIMEOUT); if (mcp23018_status) goto out;
mcp23018_status = i2c_write( 0xFF & ~(1<<row) & ~(0<<8), I2C_TIMEOUT); if (mcp23018_status) goto out;
out:
i2c_stop();
uint8_t data = 0xFF & ~(1<<row) & ~(0<<8);
mcp23018_status = i2c_writeReg(I2C_ADDR, GPIOA, &data, 1, I2C_TIMEOUT);
}
} else {
// select on teensy