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-rw-r--r--drivers/avr/i2c_master.c19
-rw-r--r--drivers/avr/i2c_slave.c29
-rw-r--r--drivers/avr/i2c_slave.h13
-rw-r--r--drivers/avr/serial.c82
-rw-r--r--drivers/avr/serial.h62
-rw-r--r--drivers/awinic/aw20216.c182
-rw-r--r--drivers/awinic/aw20216.h251
-rw-r--r--drivers/chibios/serial.c52
-rw-r--r--drivers/chibios/serial.h62
-rw-r--r--drivers/chibios/serial_usart.c352
-rw-r--r--drivers/chibios/serial_usart.h40
-rw-r--r--drivers/chibios/serial_usart_duplex.c261
-rw-r--r--drivers/chibios/spi_master.c70
-rw-r--r--drivers/chibios/spi_master.h19
-rw-r--r--drivers/eeprom/eeprom_i2c.c23
-rw-r--r--drivers/haptic/haptic.c355
-rw-r--r--drivers/haptic/haptic.h81
-rw-r--r--drivers/haptic/solenoid.c1
-rw-r--r--drivers/issi/is31fl3737.c54
-rw-r--r--drivers/lcd/st7565.c496
-rw-r--r--drivers/lcd/st7565.h219
-rw-r--r--drivers/oled/oled_driver.c26
-rw-r--r--drivers/oled/oled_driver.h4
-rw-r--r--drivers/sensors/adns5050.c193
-rw-r--r--drivers/sensors/adns5050.h79
-rw-r--r--drivers/sensors/adns9800.c219
-rw-r--r--drivers/sensors/adns9800.h35
-rw-r--r--drivers/sensors/adns9800_srom_A6.h3078
-rw-r--r--drivers/sensors/pimoroni_trackball.c140
-rw-r--r--drivers/sensors/pimoroni_trackball.h35
-rw-r--r--drivers/sensors/pmw3360.c237
-rw-r--r--drivers/sensors/pmw3360.h104
-rw-r--r--drivers/sensors/pmw3360_firmware.h300
-rw-r--r--drivers/serial.h46
34 files changed, 6139 insertions, 1080 deletions
diff --git a/drivers/avr/i2c_master.c b/drivers/avr/i2c_master.c
index b1e4885298..2773e00778 100644
--- a/drivers/avr/i2c_master.c
+++ b/drivers/avr/i2c_master.c
@@ -28,8 +28,14 @@
# define F_SCL 400000UL // SCL frequency
#endif
+#ifndef I2C_START_RETRY_COUNT
+# define I2C_START_RETRY_COUNT 20
+#endif // I2C_START_RETRY_COUNT
+
#define TWBR_val (((F_CPU / F_SCL) - 16) / 2)
+#define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
+
void i2c_init(void) {
TWSR = 0; /* no prescaler */
TWBR = (uint8_t)TWBR_val;
@@ -47,7 +53,7 @@ void i2c_init(void) {
#endif
}
-i2c_status_t i2c_start(uint8_t address, uint16_t timeout) {
+static i2c_status_t i2c_start_impl(uint8_t address, uint16_t timeout) {
// reset TWI control register
TWCR = 0;
// transmit START condition
@@ -86,6 +92,17 @@ i2c_status_t i2c_start(uint8_t address, uint16_t timeout) {
return I2C_STATUS_SUCCESS;
}
+i2c_status_t i2c_start(uint8_t address, uint16_t timeout) {
+ // Retry i2c_start_impl a bunch times in case the remote side has interrupts disabled.
+ uint16_t timeout_timer = timer_read();
+ uint16_t time_slice = MAX(1, (timeout == (I2C_TIMEOUT_INFINITE)) ? 5 : (timeout / (I2C_START_RETRY_COUNT))); // if it's infinite, wait 1ms between attempts, otherwise split up the entire timeout into the number of retries
+ i2c_status_t status;
+ do {
+ status = i2c_start_impl(address, time_slice);
+ } while ((status < 0) && ((timeout == I2C_TIMEOUT_INFINITE) || (timer_elapsed(timeout_timer) < timeout)));
+ return status;
+}
+
i2c_status_t i2c_write(uint8_t data, uint16_t timeout) {
// load data into data register
TWDR = data;
diff --git a/drivers/avr/i2c_slave.c b/drivers/avr/i2c_slave.c
index 62a378165a..2907f164c0 100644
--- a/drivers/avr/i2c_slave.c
+++ b/drivers/avr/i2c_slave.c
@@ -17,6 +17,7 @@
* GitHub repository: https://github.com/g4lvanix/I2C-slave-lib
*/
+#include <stddef.h>
#include <avr/io.h>
#include <util/twi.h>
#include <avr/interrupt.h>
@@ -24,6 +25,12 @@
#include "i2c_slave.h"
+#if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+# include "transactions.h"
+
+static volatile bool is_callback_executor = false;
+#endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+
volatile uint8_t i2c_slave_reg[I2C_SLAVE_REG_COUNT];
static volatile uint8_t buffer_address;
@@ -48,11 +55,14 @@ ISR(TWI_vect) {
case TW_SR_SLA_ACK:
// The device is now a slave receiver
slave_has_register_set = false;
+#if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+ is_callback_executor = false;
+#endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
break;
case TW_SR_DATA_ACK:
// This device is a slave receiver and has received data
- // First byte is the location then the bytes will be writen in buffer with auto-incriment
+ // First byte is the location then the bytes will be writen in buffer with auto-increment
if (!slave_has_register_set) {
buffer_address = TWDR;
@@ -60,10 +70,25 @@ ISR(TWI_vect) {
ack = 0;
buffer_address = 0;
}
- slave_has_register_set = true; // address has been receaved now fill in buffer
+ slave_has_register_set = true; // address has been received now fill in buffer
+
+#if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+ // Work out if we're attempting to execute a callback
+ is_callback_executor = buffer_address == split_transaction_table[I2C_EXECUTE_CALLBACK].initiator2target_offset;
+#endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
} else {
i2c_slave_reg[buffer_address] = TWDR;
buffer_address++;
+
+#if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+ // If we're intending to execute a transaction callback, do so, as we've just received the transaction ID
+ if (is_callback_executor) {
+ split_transaction_desc_t *trans = &split_transaction_table[split_shmem->transaction_id];
+ if (trans->slave_callback) {
+ trans->slave_callback(trans->initiator2target_buffer_size, split_trans_initiator2target_buffer(trans), trans->target2initiator_buffer_size, split_trans_target2initiator_buffer(trans));
+ }
+ }
+#endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
}
break;
diff --git a/drivers/avr/i2c_slave.h b/drivers/avr/i2c_slave.h
index 1cd0625ef4..a8647c9da3 100644
--- a/drivers/avr/i2c_slave.h
+++ b/drivers/avr/i2c_slave.h
@@ -22,7 +22,18 @@
#pragma once
-#define I2C_SLAVE_REG_COUNT 30
+#ifndef I2C_SLAVE_REG_COUNT
+
+# if defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+# include "transport.h"
+# define I2C_SLAVE_REG_COUNT sizeof(split_shared_memory_t)
+# else // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+# define I2C_SLAVE_REG_COUNT 30
+# endif // defined(USE_I2C) && defined(SPLIT_COMMON_TRANSACTIONS)
+
+#endif // I2C_SLAVE_REG_COUNT
+
+_Static_assert(I2C_SLAVE_REG_COUNT < 256, "I2C target registers must be single byte");
extern volatile uint8_t i2c_slave_reg[I2C_SLAVE_REG_COUNT];
diff --git a/drivers/avr/serial.c b/drivers/avr/serial.c
index 3647bee0d3..9a7345a53d 100644
--- a/drivers/avr/serial.c
+++ b/drivers/avr/serial.c
@@ -224,15 +224,8 @@
# define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY / 2)
# define SLAVE_INT_WIDTH_US 1
-# ifndef SERIAL_USE_MULTI_TRANSACTION
-# define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
-# else
-# define SLAVE_INT_ACK_WIDTH_UNIT 2
-# define SLAVE_INT_ACK_WIDTH 4
-# endif
-
-static SSTD_t *Transaction_table = NULL;
-static uint8_t Transaction_table_size = 0;
+# define SLAVE_INT_ACK_WIDTH_UNIT 2
+# define SLAVE_INT_ACK_WIDTH 4
inline static void serial_delay(void) ALWAYS_INLINE;
inline static void serial_delay(void) { _delay_us(SERIAL_DELAY); }
@@ -259,16 +252,12 @@ inline static void serial_low(void) { writePinLow(SOFT_SERIAL_PIN); }
inline static void serial_high(void) ALWAYS_INLINE;
inline static void serial_high(void) { writePinHigh(SOFT_SERIAL_PIN); }
-void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size) {
- Transaction_table = sstd_table;
- Transaction_table_size = (uint8_t)sstd_table_size;
+void soft_serial_initiator_init(void) {
serial_output();
serial_high();
}
-void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size) {
- Transaction_table = sstd_table;
- Transaction_table_size = (uint8_t)sstd_table_size;
+void soft_serial_target_init(void) {
serial_input_with_pullup();
// Enable INT0-INT7
@@ -395,19 +384,14 @@ static inline uint8_t nibble_bits_count(uint8_t bits) {
// interrupt handle to be used by the target device
ISR(SERIAL_PIN_INTERRUPT) {
-# ifndef SERIAL_USE_MULTI_TRANSACTION
- serial_low();
- serial_output();
- SSTD_t *trans = Transaction_table;
-# else
// recive transaction table index
uint8_t tid, bits;
uint8_t pecount = 0;
sync_recv();
- bits = serial_read_chunk(&pecount, 7);
+ bits = serial_read_chunk(&pecount, 8);
tid = bits >> 3;
- bits = (bits & 7) != nibble_bits_count(tid);
- if (bits || pecount > 0 || tid > Transaction_table_size) {
+ bits = (bits & 7) != (nibble_bits_count(tid) & 7);
+ if (bits || pecount > 0 || tid > NUM_TOTAL_TRANSACTIONS) {
return;
}
serial_delay_half1();
@@ -415,18 +399,22 @@ ISR(SERIAL_PIN_INTERRUPT) {
serial_high(); // response step1 low->high
serial_output();
_delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT * SLAVE_INT_ACK_WIDTH);
- SSTD_t *trans = &Transaction_table[tid];
+ split_transaction_desc_t *trans = &split_transaction_table[tid];
serial_low(); // response step2 ack high->low
-# endif
+
+ // If the transaction has a callback, we can execute it now
+ if (trans->slave_callback) {
+ trans->slave_callback(trans->initiator2target_buffer_size, split_trans_initiator2target_buffer(trans), trans->target2initiator_buffer_size, split_trans_target2initiator_buffer(trans));
+ }
// target send phase
- if (trans->target2initiator_buffer_size > 0) serial_send_packet((uint8_t *)trans->target2initiator_buffer, trans->target2initiator_buffer_size);
+ if (trans->target2initiator_buffer_size > 0) serial_send_packet((uint8_t *)split_trans_target2initiator_buffer(trans), trans->target2initiator_buffer_size);
// target switch to input
change_sender2reciver();
// target recive phase
if (trans->initiator2target_buffer_size > 0) {
- if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer, trans->initiator2target_buffer_size)) {
+ if (serial_recive_packet((uint8_t *)split_trans_initiator2target_buffer(trans), trans->initiator2target_buffer_size)) {
*trans->status = TRANSACTION_ACCEPTED;
} else {
*trans->status = TRANSACTION_DATA_ERROR;
@@ -448,14 +436,12 @@ ISR(SERIAL_PIN_INTERRUPT) {
// TRANSACTION_NO_RESPONSE
// TRANSACTION_DATA_ERROR
// this code is very time dependent, so we need to disable interrupts
-# ifndef SERIAL_USE_MULTI_TRANSACTION
-int soft_serial_transaction(void) {
- SSTD_t *trans = Transaction_table;
-# else
int soft_serial_transaction(int sstd_index) {
- if (sstd_index > Transaction_table_size) return TRANSACTION_TYPE_ERROR;
- SSTD_t *trans = &Transaction_table[sstd_index];
-# endif
+ if (sstd_index > NUM_TOTAL_TRANSACTIONS) return TRANSACTION_TYPE_ERROR;
+ split_transaction_desc_t *trans = &split_transaction_table[sstd_index];
+
+ if (!trans->status) return TRANSACTION_TYPE_ERROR; // not registered
+
cli();
// signal to the target that we want to start a transaction
@@ -463,27 +449,11 @@ int soft_serial_transaction(int sstd_index) {
serial_low();
_delay_us(SLAVE_INT_WIDTH_US);
-# ifndef SERIAL_USE_MULTI_TRANSACTION
- // wait for the target response
- serial_input_with_pullup();
- _delay_us(SLAVE_INT_RESPONSE_TIME);
-
- // check if the target is present
- if (serial_read_pin()) {
- // target failed to pull the line low, assume not present
- serial_output();
- serial_high();
- *trans->status = TRANSACTION_NO_RESPONSE;
- sei();
- return TRANSACTION_NO_RESPONSE;
- }
-
-# else
// send transaction table index
int tid = (sstd_index << 3) | (7 & nibble_bits_count(sstd_index));
sync_send();
_delay_sub_us(TID_SEND_ADJUST);
- serial_write_chunk(tid, 7);
+ serial_write_chunk(tid, 8);
serial_delay_half1();
// wait for the target response (step1 low->high)
@@ -504,12 +474,11 @@ int soft_serial_transaction(int sstd_index) {
}
_delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
}
-# endif
// initiator recive phase
// if the target is present syncronize with it
if (trans->target2initiator_buffer_size > 0) {
- if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer, trans->target2initiator_buffer_size)) {
+ if (!serial_recive_packet((uint8_t *)split_trans_target2initiator_buffer(trans), trans->target2initiator_buffer_size)) {
serial_output();
serial_high();
*trans->status = TRANSACTION_DATA_ERROR;
@@ -523,7 +492,7 @@ int soft_serial_transaction(int sstd_index) {
// initiator send phase
if (trans->initiator2target_buffer_size > 0) {
- serial_send_packet((uint8_t *)trans->initiator2target_buffer, trans->initiator2target_buffer_size);
+ serial_send_packet((uint8_t *)split_trans_initiator2target_buffer(trans), trans->initiator2target_buffer_size);
}
// always, release the line when not in use
@@ -534,9 +503,8 @@ int soft_serial_transaction(int sstd_index) {
return TRANSACTION_END;
}
-# ifdef SERIAL_USE_MULTI_TRANSACTION
int soft_serial_get_and_clean_status(int sstd_index) {
- SSTD_t *trans = &Transaction_table[sstd_index];
+ split_transaction_desc_t *trans = &split_transaction_table[sstd_index];
cli();
int retval = *trans->status;
*trans->status = 0;
@@ -544,8 +512,6 @@ int soft_serial_get_and_clean_status(int sstd_index) {
sei();
return retval;
}
-# endif
-
#endif
// Helix serial.c history
diff --git a/drivers/avr/serial.h b/drivers/avr/serial.h
deleted file mode 100644
index 53e66cf905..0000000000
--- a/drivers/avr/serial.h
+++ /dev/null
@@ -1,62 +0,0 @@
-#pragma once
-
-#include <stdbool.h>
-
-// /////////////////////////////////////////////////////////////////
-// Need Soft Serial defines in config.h
-// /////////////////////////////////////////////////////////////////
-// ex.
-// #define SOFT_SERIAL_PIN ?? // ?? = D0,D1,D2,D3,E6
-// OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
-// // 1: about 137kbps (default)
-// // 2: about 75kbps
-// // 3: about 39kbps
-// // 4: about 26kbps
-// // 5: about 20kbps
-//
-// //// USE simple API (using signle-type transaction function)
-// /* nothing */
-// //// USE flexible API (using multi-type transaction function)
-// #define SERIAL_USE_MULTI_TRANSACTION
-//
-// /////////////////////////////////////////////////////////////////
-
-// Soft Serial Transaction Descriptor
-typedef struct _SSTD_t {
- uint8_t *status;
- uint8_t initiator2target_buffer_size;
- uint8_t *initiator2target_buffer;
- uint8_t target2initiator_buffer_size;
- uint8_t *target2initiator_buffer;
-} SSTD_t;
-#define TID_LIMIT(table) (sizeof(table) / sizeof(SSTD_t))
-
-// initiator is transaction start side
-void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
-// target is interrupt accept side
-void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
-
-// initiator resullt
-#define TRANSACTION_END 0
-#define TRANSACTION_NO_RESPONSE 0x1
-#define TRANSACTION_DATA_ERROR 0x2
-#define TRANSACTION_TYPE_ERROR 0x4
-#ifndef SERIAL_USE_MULTI_TRANSACTION
-int soft_serial_transaction(void);
-#else
-int soft_serial_transaction(int sstd_index);
-#endif
-
-// target status
-// *SSTD_t.status has
-// initiator:
-// TRANSACTION_END
-// or TRANSACTION_NO_RESPONSE
-// or TRANSACTION_DATA_ERROR
-// target:
-// TRANSACTION_DATA_ERROR
-// or TRANSACTION_ACCEPTED
-#define TRANSACTION_ACCEPTED 0x8
-#ifdef SERIAL_USE_MULTI_TRANSACTION
-int soft_serial_get_and_clean_status(int sstd_index);
-#endif
diff --git a/drivers/awinic/aw20216.c b/drivers/awinic/aw20216.c
new file mode 100644
index 0000000000..776653fa6c
--- /dev/null
+++ b/drivers/awinic/aw20216.c
@@ -0,0 +1,182 @@
+/* Copyright 2021 Jasper Chan
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "aw20216.h"
+#include "spi_master.h"
+
+/* The AW20216 appears to be somewhat similar to the IS31FL743, although quite
+ * a few things are different, such as the command byte format and page ordering.
+ * The LED addresses start from 0x00 instead of 0x01.
+ */
+#define AWINIC_ID 0b1010 << 4
+
+#define AW_PAGE_FUNCTION 0x00 << 1 // PG0, Function registers
+#define AW_PAGE_PWM 0x01 << 1 // PG1, LED PWM control
+#define AW_PAGE_SCALING 0x02 << 1 // PG2, LED current scaling control
+#define AW_PAGE_PATCHOICE 0x03 << 1 // PG3, Pattern choice?
+#define AW_PAGE_PWMSCALING 0x04 << 1 // PG4, LED PWM + Scaling control?
+
+#define AW_WRITE 0
+#define AW_READ 1
+
+#define AW_REG_CONFIGURATION 0x00 // PG0
+#define AW_REG_GLOBALCURRENT 0x01 // PG0
+
+// Default value of AW_REG_CONFIGURATION
+// D7:D4 = 1011, SWSEL (SW1~SW12 active)
+// D3 = 0?, reserved (apparently this should be 1 but it doesn't seem to matter)
+// D2:D1 = 00, OSDE (open/short detection enable)
+// D0 = 0, CHIPEN (write 1 to enable LEDs when hardware enable pulled high)
+#define AW_CONFIG_DEFAULT 0b10110000
+#define AW_CHIPEN 1
+
+#define AW_PWM_REGISTER_COUNT 216
+
+#define AW_SPI_START(PIN) spi_start(PIN, false, 0, AW_SPI_DIVISOR)
+
+#ifndef AW_SCALING_MAX
+# define AW_SCALING_MAX 150
+#endif
+
+#ifndef AW_GLOBAL_CURRENT_MAX
+# define AW_GLOBAL_CURRENT_MAX 150
+#endif
+
+#ifndef DRIVER_1_CS
+# define DRIVER_1_CS B13
+#endif
+
+#ifndef DRIVER_1_EN
+# define DRIVER_1_EN C13
+#endif
+
+#ifndef AW_SPI_DIVISOR
+# define AW_SPI_DIVISOR 4
+#endif
+
+uint8_t g_spi_transfer_buffer[3] = {0};
+uint8_t g_pwm_buffer[DRIVER_COUNT][AW_PWM_REGISTER_COUNT];
+bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
+
+bool AW20216_write_register(pin_t slave_pin, uint8_t page, uint8_t reg, uint8_t data) {
+ // Do we need to call spi_stop() if this fails?
+ if (!AW_SPI_START(slave_pin)) {
+ return false;
+ }
+
+ g_spi_transfer_buffer[0] = (AWINIC_ID | page | AW_WRITE);
+ g_spi_transfer_buffer[1] = reg;
+ g_spi_transfer_buffer[2] = data;
+
+ if (spi_transmit(g_spi_transfer_buffer, 3) != SPI_STATUS_SUCCESS) {
+ spi_stop();
+ return false;
+ }
+ spi_stop();
+ return true;
+}
+
+bool AW20216_init_scaling(void) {
+ // Set constant current to the max, control brightness with PWM
+ aw_led led;
+ for (uint8_t i = 0; i < DRIVER_LED_TOTAL; i++) {
+ led = g_aw_leds[i];
+ if (led.driver == 0) {
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_SCALING, led.r, AW_SCALING_MAX);
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_SCALING, led.g, AW_SCALING_MAX);
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_SCALING, led.b, AW_SCALING_MAX);
+ }
+#ifdef DRIVER_2_CS
+ else if (led.driver == 1) {
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_SCALING, led.r, AW_SCALING_MAX);
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_SCALING, led.g, AW_SCALING_MAX);
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_SCALING, led.b, AW_SCALING_MAX);
+ }
+#endif
+ }
+ return true;
+}
+
+bool AW20216_soft_enable(void) {
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_FUNCTION, AW_REG_CONFIGURATION, AW_CONFIG_DEFAULT | AW_CHIPEN);
+#ifdef DRIVER_2_CS
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_FUNCTION, AW_REG_CONFIGURATION, AW_CONFIG_DEFAULT | AW_CHIPEN);
+#endif
+ return true;
+}
+
+void AW20216_update_pwm(int index, uint8_t red, uint8_t green, uint8_t blue) {
+ aw_led led = g_aw_leds[index];
+ if (led.driver == 0) {
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_PWM, led.r, red);
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_PWM, led.g, green);
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_PWM, led.b, blue);
+ }
+#ifdef DRIVER_2_CS
+ else if (led.driver == 1) {
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_PWM, led.r, red);
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_PWM, led.g, green);
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_PWM, led.b, blue);
+ }
+#endif
+ return;
+}
+
+void AW20216_init(void) {
+ // All LEDs should start with all scaling and PWM registers as off
+ setPinOutput(DRIVER_1_EN);
+ writePinHigh(DRIVER_1_EN);
+ AW20216_write_register(DRIVER_1_CS, AW_PAGE_FUNCTION, AW_REG_GLOBALCURRENT, AW_GLOBAL_CURRENT_MAX);
+#ifdef DRIVER_2_EN
+ setPinOutput(DRIVER_2_EN);
+ writePinHigh(DRIVER_2_EN);
+ AW20216_write_register(DRIVER_2_CS, AW_PAGE_FUNCTION, AW_REG_GLOBALCURRENT, AW_GLOBAL_CURRENT_MAX);
+#endif
+ AW20216_init_scaling();
+ AW20216_soft_enable();
+ return;
+}
+
+void AW20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
+ aw_led led = g_aw_leds[index];
+ g_pwm_buffer[led.driver][led.r] = red;
+ g_pwm_buffer[led.driver][led.g] = green;
+ g_pwm_buffer[led.driver][led.b] = blue;
+ g_pwm_buffer_update_required[led.driver] = true;
+ return;
+}
+void AW20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
+ for (uint8_t i = 0; i < DRIVER_LED_TOTAL; i++) {
+ AW20216_set_color(i, red, green, blue);
+ }
+ return;
+}
+
+void AW20216_write_pwm_buffer(pin_t slave_pin, uint8_t buffer_idx) {
+ AW_SPI_START(slave_pin);
+ spi_write((AWINIC_ID | AW_PAGE_PWM | AW_WRITE));
+ spi_write(0);
+ spi_transmit(g_pwm_buffer[buffer_idx], AW_PWM_REGISTER_COUNT);
+ spi_stop();
+}
+
+void AW20216_update_pwm_buffers(void) {
+ AW20216_write_pwm_buffer(DRIVER_1_CS, 0);
+#ifdef DRIVER_2_CS
+ AW20216_write_pwm_buffer(DRIVER_2_CS, 1);
+#endif
+ return;
+}
diff --git a/drivers/awinic/aw20216.h b/drivers/awinic/aw20216.h
new file mode 100644
index 0000000000..9c6865cc82
--- /dev/null
+++ b/drivers/awinic/aw20216.h
@@ -0,0 +1,251 @@
+/* Copyright 2021 Jasper Chan (Gigahawk)
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct aw_led {
+ uint8_t driver : 2;
+ uint8_t r;
+ uint8_t g;
+ uint8_t b;
+} aw_led;
+
+extern const aw_led g_aw_leds[DRIVER_LED_TOTAL];
+
+void AW20216_init(void);
+void AW20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue);
+void AW20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue);
+void AW20216_update_pwm_buffers(void);
+
+#define CS1_SW1 0x00
+#define CS2_SW1 0x01
+#define CS3_SW1 0x02
+#define CS4_SW1 0x03
+#define CS5_SW1 0x04
+#define CS6_SW1 0x05
+#define CS7_SW1 0x06
+#define CS8_SW1 0x07
+#define CS9_SW1 0x08
+#define CS10_SW1 0x09
+#define CS11_SW1 0x0A
+#define CS12_SW1 0x0B
+#define CS13_SW1 0x0C
+#define CS14_SW1 0x0D
+#define CS15_SW1 0x0E
+#define CS16_SW1 0x0F
+#define CS17_SW1 0x10
+#define CS18_SW1 0x11
+#define CS1_SW2 0x12
+#define CS2_SW2 0x13
+#define CS3_SW2 0x14
+#define CS4_SW2 0x15
+#define CS5_SW2 0x16
+#define CS6_SW2 0x17
+#define CS7_SW2 0x18
+#define CS8_SW2 0x19
+#define CS9_SW2 0x1A
+#define CS10_SW2 0x1B
+#define CS11_SW2 0x1C
+#define CS12_SW2 0x1D
+#define CS13_SW2 0x1E
+#define CS14_SW2 0x1F
+#define CS15_SW2 0x20
+#define CS16_SW2 0x21
+#define CS17_SW2 0x22
+#define CS18_SW2 0x23
+#define CS1_SW3 0x24
+#define CS2_SW3 0x25
+#define CS3_SW3 0x26
+#define CS4_SW3 0x27
+#define CS5_SW3 0x28
+#define CS6_SW3 0x29
+#define CS7_SW3 0x2A
+#define CS8_SW3 0x2B
+#define CS9_SW3 0x2C
+#define CS10_SW3 0x2D
+#define CS11_SW3 0x2E
+#define CS12_SW3 0x2F
+#define CS13_SW3 0x30
+#define CS14_SW3 0x31
+#define CS15_SW3 0x32
+#define CS16_SW3 0x33
+#define CS17_SW3 0x34
+#define CS18_SW3 0x35
+#define CS1_SW4 0x36
+#define CS2_SW4 0x37
+#define CS3_SW4 0x38
+#define CS4_SW4 0x39
+#define CS5_SW4 0x3A
+#define CS6_SW4 0x3B
+#define CS7_SW4 0x3C
+#define CS8_SW4 0x3D
+#define CS9_SW4 0x3E
+#define CS10_SW4 0x3F
+#define CS11_SW4 0x40
+#define CS12_SW4 0x41
+#define CS13_SW4 0x42
+#define CS14_SW4 0x43
+#define CS15_SW4 0x44
+#define CS16_SW4 0x45
+#define CS17_SW4 0x46
+#define CS18_SW4 0x47
+#define CS1_SW5 0x48
+#define CS2_SW5 0x49
+#define CS3_SW5 0x4A
+#define CS4_SW5 0x4B
+#define CS5_SW5 0x4C
+#define CS6_SW5 0x4D
+#define CS7_SW5 0x4E
+#define CS8_SW5 0x4F
+#define CS9_SW5 0x50
+#define CS10_SW5 0x51
+#define CS11_SW5 0x52
+#define CS12_SW5 0x53
+#define CS13_SW5 0x54
+#define CS14_SW5 0x55
+#define CS15_SW5 0x56
+#define CS16_SW5 0x57
+#define CS17_SW5 0x58
+#define CS18_SW5 0x59
+#define CS1_SW6 0x5A
+#define CS2_SW6 0x5B
+#define CS3_SW6 0x5C
+#define CS4_SW6 0x5D
+#define CS5_SW6 0x5E
+#define CS6_SW6 0x5F
+#define CS7_SW6 0x60
+#define CS8_SW6 0x61
+#define CS9_SW6 0x62
+#define CS10_SW6 0x63
+#define CS11_SW6 0x64
+#define CS12_SW6 0x65
+#define CS13_SW6 0x66
+#define CS14_SW6 0x67
+#define CS15_SW6 0x68
+#define CS16_SW6 0x69
+#define CS17_SW6 0x6A
+#define CS18_SW6 0x6B
+#define CS1_SW7 0x6C
+#define CS2_SW7 0x6D
+#define CS3_SW7 0x6E
+#define CS4_SW7 0x6F
+#define CS5_SW7 0x70
+#define CS6_SW7 0x71
+#define CS7_SW7 0x72
+#define CS8_SW7 0x73
+#define CS9_SW7 0x74
+#define CS10_SW7 0x75
+#define CS11_SW7 0x76
+#define CS12_SW7 0x77
+#define CS13_SW7 0x78
+#define CS14_SW7 0x79
+#define CS15_SW7 0x7A
+#define CS16_SW7 0x7B
+#define CS17_SW7 0x7C
+#define CS18_SW7 0x7D
+#define CS1_SW8 0x7E
+#define CS2_SW8 0x7F
+#define CS3_SW8 0x80
+#define CS4_SW8 0x81
+#define CS5_SW8 0x82
+#define CS6_SW8 0x83
+#define CS7_SW8 0x84
+#define CS8_SW8 0x85
+#define CS9_SW8 0x86
+#define CS10_SW8 0x87
+#define CS11_SW8 0x88
+#define CS12_SW8 0x89
+#define CS13_SW8 0x8A
+#define CS14_SW8 0x8B
+#define CS15_SW8 0x8C
+#define CS16_SW8 0x8D
+#define CS17_SW8 0x8E
+#define CS18_SW8 0x8F
+#define CS1_SW9 0x90
+#define CS2_SW9 0x91
+#define CS3_SW9 0x92
+#define CS4_SW9 0x93
+#define CS5_SW9 0x94
+#define CS6_SW9 0x95
+#define CS7_SW9 0x96
+#define CS8_SW9 0x97
+#define CS9_SW9 0x98
+#define CS10_SW9 0x99
+#define CS11_SW9 0x9A
+#define CS12_SW9 0x9B
+#define CS13_SW9 0x9C
+#define CS14_SW9 0x9D
+#define CS15_SW9 0x9E
+#define CS16_SW9 0x9F
+#define CS17_SW9 0xA0
+#define CS18_SW9 0xA1
+#define CS1_SW10 0xA2
+#define CS2_SW10 0xA3
+#define CS3_SW10 0xA4