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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
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GPG key ID: B5690EEEBB952194
49 changed files with 280 additions and 603 deletions
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79
keyboards/system76/launch_1/usb_mux.c
View file

@ -77,51 +77,14 @@ i2c_status_t usb7206_read_reg(struct USB7206* self, uint32_t addr, uint8_t* data
return status;
}
uint8_t read[2] = {
0x00, // Buffer address MSB: always 0
0x06, // Buffer address LSB: 6 to skip header
};
status = i2c_start((self->addr << 1) | I2C_WRITE, I2C_TIMEOUT);
if (status >= 0) {
for (uint16_t i = 0; i < sizeof(read); i++) {
status = i2c_write(read[i], I2C_TIMEOUT);
if (status < 0) {
goto error;
}
}
} else {
goto error;
}
status = i2c_start((self->addr << 1) | I2C_READ, I2C_TIMEOUT);
if (status < 0) {
goto error;
}
// Read and ignore buffer length
status = i2c_read_ack(I2C_TIMEOUT);
if (status < 0) {
goto error;
}
uint16_t read = 0x0006; // Buffer address 6 to skip header
uint8_t data_with_buffer_length[length];
status = i2c_readReg16((self->addr << 1), read, data_with_buffer_length, length, I2C_TIMEOUT);
for (uint16_t i = 0; i < (length - 1) && status >= 0; i++) {
status = i2c_read_ack(I2C_TIMEOUT);
if (status >= 0) {
data[i] = (uint8_t)status;
}
data[i] = data_with_buffer_length[i+1];
}
if (status >= 0) {
status = i2c_read_nack(I2C_TIMEOUT);
if (status >= 0) {
data[(length - 1)] = (uint8_t)status;
}
}
error:
i2c_stop();
return (status < 0) ? status : length;
}
@ -160,35 +123,21 @@ i2c_status_t usb7206_write_reg(struct USB7206* self, uint32_t addr, uint8_t* dat
(uint8_t)(addr >> 8), // Register address byte 1
(uint8_t)(addr >> 0), // Register address byte 0
};
uint8_t send_buffer_length = sizeof(register_write) + length;
uint8_t send_buffer[send_buffer_length];
uint8_t j = 0;
status = i2c_start((self->addr << 1) | I2C_WRITE, I2C_TIMEOUT);
if (status >= 0) {
for (uint16_t i = 0; i < sizeof(register_write); i++) {
status = i2c_write(register_write[i], I2C_TIMEOUT);
if (status < 0) {
goto error;
}
}
for (uint16_t i = 0; i < length; i++) {
status = i2c_write(data[i], I2C_TIMEOUT);
if (status < 0) {
goto error;
}
}
} else {
goto error;
for (uint16_t i = 0; i < sizeof(register_write); i++) {
send_buffer[j++] = register_write[i];
}
i2c_stop();
for (uint16_t i = 0; i < length; i++) {
send_buffer[j++] = data[i];
}
status = i2c_transmit((self->addr << 1), send_buffer, send_buffer_length, I2C_TIMEOUT);
status = usb7206_register_access(self);
if (status < 0) {
goto error;
}
error:
i2c_stop();
return (status < 0) ? status : length;
}