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Align AW20216 driver (#13712)

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* Align AW20216 driver

* Update drivers/awinic/aw20216.h

Co-authored-by: Ryan <fauxpark@gmail.com>

* Review comments

* formatting fixes

* stop if start failed?

* review comments

Co-authored-by: Ryan <fauxpark@gmail.com>
This commit is contained in:
Joel Challis 2021-07-27 23:55:51 +01:00 committed by GitHub
parent 56443fe3cf
commit 3858a784c7
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 61 additions and 93 deletions
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135
drivers/awinic/aw20216.c
View file

@ -45,8 +45,6 @@
#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
@ -55,128 +53,89 @@
# 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;
}
bool AW20216_write(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t* data, uint8_t len) {
static uint8_t s_spi_transfer_buffer[2] = {0};
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) {
if (!spi_start(cs_pin, false, 0, AW_SPI_DIVISOR)) {
spi_stop();
return false;
}
s_spi_transfer_buffer[0] = (AWINIC_ID | page | AW_WRITE);
s_spi_transfer_buffer[1] = reg;
if (spi_transmit(s_spi_transfer_buffer, 2) != SPI_STATUS_SUCCESS) {
spi_stop();
return false;
}
if (spi_transmit(data, len) != SPI_STATUS_SUCCESS) {
spi_stop();
return false;
}
spi_stop();
return true;
}
bool AW20216_init_scaling(void) {
static inline bool AW20216_write_register(pin_t cs_pin, uint8_t page, uint8_t reg, uint8_t value) {
// Little wrapper so callers need not care about sending a buffer
return AW20216_write(cs_pin, page, reg, &value, 1);
}
static void AW20216_init_scaling(pin_t cs_pin) {
// 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);
for (uint8_t i = 0; i < AW_PWM_REGISTER_COUNT; i++) {
AW20216_write_register(cs_pin, AW_PAGE_SCALING, i, 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;
static inline void AW20216_init_current_limit(pin_t cs_pin) {
// Push config
AW20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_GLOBALCURRENT, AW_GLOBAL_CURRENT_MAX);
}
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;
static inline void AW20216_soft_enable(pin_t cs_pin) {
// Push config
AW20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_CONFIGURATION, AW_CONFIG_DEFAULT | AW_CHIPEN);
}
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_init(pin_t cs_pin, pin_t en_pin) {
setPinOutput(en_pin);
writePinHigh(en_pin);
// Drivers should start with all scaling and PWM registers as off
AW20216_init_current_limit(cs_pin);
AW20216_init_scaling(cs_pin);
AW20216_soft_enable(cs_pin);
}
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;
void AW20216_update_pwm_buffers(pin_t cs_pin, uint8_t index) {
if (g_pwm_buffer_update_required[index]) {
AW20216_write(cs_pin, AW_PAGE_PWM, 0, g_pwm_buffer[index], AW_PWM_REGISTER_COUNT);
}
g_pwm_buffer_update_required[index] = false;
}

5
drivers/awinic/aw20216.h
View file

@ -18,6 +18,7 @@
#include <stdint.h>
#include <stdbool.h>
#include "gpio.h"
typedef struct aw_led {
uint8_t driver : 2;
@ -28,10 +29,10 @@ typedef struct aw_led {
extern const aw_led g_aw_leds[DRIVER_LED_TOTAL];
void AW20216_init(void);
void AW20216_init(pin_t cs_pin, pin_t en_pin);
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);
void AW20216_update_pwm_buffers(pin_t cs_pin, uint8_t index);
#define CS1_SW1 0x00
#define CS2_SW1 0x01

12
quantum/rgb_matrix/rgb_matrix_drivers.c
View file

@ -186,10 +186,18 @@ const rgb_matrix_driver_t rgb_matrix_driver = {
# include "spi_master.h"
static void init(void) {
spi_init();
AW20216_init();
AW20216_init(DRIVER_1_CS, DRIVER_1_EN);
# ifdef DRIVER_2_CS
AW20216_init(DRIVER_2_CS, DRIVER_2_EN);
# endif
}
static void flush(void) { AW20216_update_pwm_buffers(); }
static void flush(void) {
AW20216_update_pwm_buffers(DRIVER_1_CS, 0);
# ifdef DRIVER_2_CS
AW20216_update_pwm_buffers(DRIVER_2_CS, 1);
# endif
}
const rgb_matrix_driver_t rgb_matrix_driver = {
.init = init,