johannes/CherryQMKMod
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

I2C driver cleanup (#21273)

Browse Source 
* 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
Download Patch File Download Diff File Expand all files Collapse all files

1
keyboards/handwired/d48/ds1307.c
View File

@@ -14,7 +14,6 @@ void ds1307_set_time(uint8_t h, uint8_t m, uint8_t s) {
void ds1307_get_time(uint8_t *h, uint8_t *m, uint8_t *s) {
uint8_t data[3];
i2c_read_register(DS1307_ADDR, 0, data, 3, 100);
i2c_stop();
*s = (data[0] & 0b1111) + ((data[0] & 0b1110000) >> 4) * 10;
*m = (data[1] & 0b1111) + ((data[1] & 0b1110000) >> 4) * 10;
*h = (data[2] & 0b1111) + ((data[2] & 0b0110000) >> 4) * 10;

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

15
keyboards/handwired/onekey/keymaps/i2c_scanner/keymap.c
View File

@@ -8,16 +8,6 @@
// TODO: remove patch
#ifdef PROTOCOL_CHIBIOS
# pragma message("ChibiOS is currently 'best effort' and might not report accurate results")
i2c_status_t i2c_start_bodge(uint8_t address, uint16_t timeout) {
i2c_start(address);
// except on ChibiOS where the only way is do do "something"
uint8_t data = 0;
return i2c_read_register(address, 0, &data, sizeof(data), TIMEOUT);
}
# define i2c_start i2c_start_bodge
#endif
const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@@ -31,10 +21,9 @@ void do_scan(void) {
for (uint8_t address = 1; address < 127; address++) {
// The i2c_scanner uses the return value of
// i2c_start to see if a device did acknowledge to the address.
i2c_status_t error = i2c_start(address << 1, TIMEOUT);
// i2c_ping_address to see if a device did acknowledge to the address.
i2c_status_t error = i2c_ping_address(address << 1, TIMEOUT);
if (error == I2C_STATUS_SUCCESS) {
i2c_stop();
dprintf(" I2C device found at address 0x%02X\n", address);
nDevices++;
} else {

81
keyboards/handwired/pterodactyl/matrix.c
View File

@@ -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;
uint8_t data[] = { expander_input_pin_mask, 0};
# endif
#endif
expander_status = i2c_writeReg(I2C_ADDR, IODIRA, data, sizeof(data), I2C_TIMEOUT);
i2c_stop();
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);
}
// 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;
# endif
#endif
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++) {