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* Enable SPI1 for GMMK pro * Setup initial boilerplate for new LED driver * RGB matrix minimally functional * Map full LED matrix * Return keymap to default * Fix printscreen LED mapping * Reduce max brightness * Default values for AW20216 * Add documentation for AW20216 * Disable console and warnings * Run cformat * Update drivers/awinic/aw20216.h Co-authored-by: Drashna Jaelre <[email protected]> * make aw struct match issi struct Co-authored-by: Drashna Jaelre <[email protected]> * add led location defines Co-authored-by: Drashna Jaelre <[email protected]> * Use led pin definitions in keyboard.c * Add driver indices to led map * Fix elif typo * Run cformat * Update docs * Fix typo in docs * Document global brightness limits Co-authored-by: Drashna Jaelre <[email protected]>
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| /* 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/>. | ||
| */ | ||
|
|
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| #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 | ||
|
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| // 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 | ||
|
|
||
| #ifndef AW_SCALING_MAX | ||
| # define AW_SCALING_MAX 150 | ||
| #endif | ||
|
|
||
| #ifndef AW_GLOBAL_CURRENT_MAX | ||
| # define AW_GLOBAL_CURRENT_MAX 150 | ||
| #endif | ||
|
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| #ifndef DRIVER_1_CS | ||
| # define DRIVER_1_CS B13 | ||
| #endif | ||
|
|
||
| #ifndef DRIVER_1_EN | ||
| # define DRIVER_1_EN C13 | ||
| #endif | ||
|
|
||
| uint8_t g_spi_transfer_buffer[20] = {0}; | ||
| aw_led g_pwm_buffer[DRIVER_LED_TOTAL]; | ||
| bool g_pwm_buffer_update_required[DRIVER_LED_TOTAL]; | ||
|
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||
| 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 (!spi_start(slave_pin, false, 0, 16)) { | ||
| 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) { | ||
| g_pwm_buffer[index].r = red; | ||
| g_pwm_buffer[index].g = green; | ||
| g_pwm_buffer[index].b = blue; | ||
| g_pwm_buffer_update_required[index] = 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_update_pwm_buffers(void) { | ||
| for (uint8_t i = 0; i < DRIVER_LED_TOTAL; i++) { | ||
| if (g_pwm_buffer_update_required[i]) { | ||
| AW20216_update_pwm(i, g_pwm_buffer[i].r, g_pwm_buffer[i].g, g_pwm_buffer[i].b); | ||
| g_pwm_buffer_update_required[i] = false; | ||
| } | ||
| } | ||
| return; | ||
| } |
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