e9bd7d7ad3
* remove i2c_start and i2c_stop from i2c drivers * remove static i2c_address variable from chibios i2c driver
90 lines
3 KiB
C
90 lines
3 KiB
C
// Copyright 2022 Nick Brassel (@tzarc)
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#ifdef QUANTUM_PAINTER_I2C_ENABLE
|
|
|
|
# include "i2c_master.h"
|
|
# include "qp_comms_i2c.h"
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Helpers
|
|
|
|
static uint32_t qp_comms_i2c_send_raw(painter_device_t device, const void *data, uint32_t byte_count) {
|
|
painter_driver_t * driver = (painter_driver_t *)device;
|
|
qp_comms_i2c_config_t *comms_config = (qp_comms_i2c_config_t *)driver->comms_config;
|
|
i2c_status_t res = i2c_transmit(comms_config->chip_address << 1, data, byte_count, I2C_TIMEOUT);
|
|
if (res < 0) {
|
|
return 0;
|
|
}
|
|
return byte_count;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Base I2C support
|
|
|
|
bool qp_comms_i2c_init(painter_device_t device) {
|
|
i2c_init();
|
|
return true;
|
|
}
|
|
|
|
bool qp_comms_i2c_start(painter_device_t device) {
|
|
return true;
|
|
}
|
|
|
|
uint32_t qp_comms_i2c_send_data(painter_device_t device, const void *data, uint32_t byte_count) {
|
|
return qp_comms_i2c_send_raw(device, data, byte_count);
|
|
}
|
|
|
|
void qp_comms_i2c_stop(painter_device_t device) {}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Command+Data I2C support
|
|
|
|
static const uint8_t cmd_byte = 0x00;
|
|
static const uint8_t data_byte = 0x40;
|
|
|
|
void qp_comms_i2c_cmddata_send_command(painter_device_t device, uint8_t cmd) {
|
|
uint8_t buf[2] = {cmd_byte, cmd};
|
|
qp_comms_i2c_send_raw(device, &buf, 2);
|
|
}
|
|
|
|
uint32_t qp_comms_i2c_cmddata_send_data(painter_device_t device, const void *data, uint32_t byte_count) {
|
|
uint8_t buf[1 + byte_count];
|
|
buf[0] = data_byte;
|
|
memcpy(&buf[1], data, byte_count);
|
|
if (qp_comms_i2c_send_raw(device, buf, sizeof(buf)) != sizeof(buf)) {
|
|
return 0;
|
|
}
|
|
return byte_count;
|
|
}
|
|
|
|
void qp_comms_i2c_bulk_command_sequence(painter_device_t device, const uint8_t *sequence, size_t sequence_len) {
|
|
uint8_t buf[32];
|
|
for (size_t i = 0; i < sequence_len;) {
|
|
uint8_t command = sequence[i];
|
|
uint8_t delay = sequence[i + 1];
|
|
uint8_t num_bytes = sequence[i + 2];
|
|
buf[0] = cmd_byte;
|
|
buf[1] = command;
|
|
memcpy(&buf[2], &sequence[i + 3], num_bytes);
|
|
qp_comms_i2c_send_raw(device, buf, num_bytes + 2);
|
|
if (delay > 0) {
|
|
wait_ms(delay);
|
|
}
|
|
i += (3 + num_bytes);
|
|
}
|
|
}
|
|
|
|
const painter_comms_with_command_vtable_t i2c_comms_cmddata_vtable = {
|
|
.base =
|
|
{
|
|
.comms_init = qp_comms_i2c_init,
|
|
.comms_start = qp_comms_i2c_start,
|
|
.comms_send = qp_comms_i2c_cmddata_send_data,
|
|
.comms_stop = qp_comms_i2c_stop,
|
|
},
|
|
.send_command = qp_comms_i2c_cmddata_send_command,
|
|
.bulk_command_sequence = qp_comms_i2c_bulk_command_sequence,
|
|
};
|
|
|
|
#endif // QUANTUM_PAINTER_I2C_ENABLE
|