diff options
Diffstat (limited to 'drivers/led/aw20216.c')
| -rw-r--r-- | drivers/led/aw20216.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/drivers/led/aw20216.c b/drivers/led/aw20216.c deleted file mode 100644 index 479643add4..0000000000 --- a/drivers/led/aw20216.c +++ /dev/null @@ -1,168 +0,0 @@ -/* Copyright 2021 Jasper Chan - * 2023 Huckies <https://github.com/Huckies> - * - * 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 "wait.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 -#define AW_REG_RESET 0x2F // PG0 -#define AW_REG_MIXFUNCTION 0x46 // 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_MIXCR_DEFAULT 0b00000000 -#define AW_RESET_CMD 0xAE -#define AW_CHIPEN 1 -#define AW_LPEN (0x01 << 1) - -#define AW_PWM_REGISTER_COUNT 216 - -#ifndef AW_SCALING_MAX -# define AW_SCALING_MAX 150 -#endif - -#ifndef AW_GLOBAL_CURRENT_MAX -# define AW_GLOBAL_CURRENT_MAX 150 -#endif - -#ifndef AW_SPI_MODE -# define AW_SPI_MODE 0 -#endif - -#ifndef AW_SPI_DIVISOR -# define AW_SPI_DIVISOR 4 -#endif - -uint8_t g_pwm_buffer[DRIVER_COUNT][AW_PWM_REGISTER_COUNT]; -bool g_pwm_buffer_update_required[DRIVER_COUNT] = {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}; - - if (!spi_start(cs_pin, false, AW_SPI_MODE, 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; -} - -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); -} - -void aw20216_soft_reset(pin_t cs_pin) { - aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_RESET, AW_RESET_CMD); -} - -static void aw20216_init_scaling(pin_t cs_pin) { - // Set constant current to the max, control brightness with PWM - for (uint8_t i = 0; i < AW_PWM_REGISTER_COUNT; i++) { - aw20216_write_register(cs_pin, AW_PAGE_SCALING, i, AW_SCALING_MAX); - } -} - -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); -} - -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); -} - -static inline void aw20216_auto_lowpower(pin_t cs_pin) { - aw20216_write_register(cs_pin, AW_PAGE_FUNCTION, AW_REG_MIXFUNCTION, AW_MIXCR_DEFAULT | AW_LPEN); -} - -void aw20216_init(pin_t cs_pin, pin_t en_pin) { - setPinOutput(en_pin); - writePinHigh(en_pin); - - aw20216_soft_reset(cs_pin); - wait_ms(2); - - // 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); - aw20216_auto_lowpower(cs_pin); -} - -void aw20216_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) { - aw_led led; - memcpy_P(&led, (&g_aw_leds[index]), sizeof(led)); - - if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) { - return; - } - 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; -} - -void aw20216_set_color_all(uint8_t red, uint8_t green, uint8_t blue) { - for (uint8_t i = 0; i < RGB_MATRIX_LED_COUNT; i++) { - aw20216_set_color(i, red, green, blue); - } -} - -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; -} |