234 lines
8.8 KiB
C
234 lines
8.8 KiB
C
/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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* Copyright 2018 Yiancar
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* Copyright 2020 MelGeek
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* Copyright 2021 MasterSpoon
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "is31flcommon.h"
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#include "i2c_master.h"
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#include "wait.h"
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#include <string.h>
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// Set defaults for Timeout and Persistence
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#ifndef ISSI_TIMEOUT
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# define ISSI_TIMEOUT 100
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#endif
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#ifndef ISSI_PERSISTENCE
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# define ISSI_PERSISTENCE 0
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#endif
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// Transfer buffer for TWITransmitData()
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uint8_t g_twi_transfer_buffer[20];
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// These buffers match the PWM & scaling registers.
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// Storing them like this is optimal for I2C transfers to the registers.
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uint8_t g_pwm_buffer[DRIVER_COUNT][ISSI_MAX_LEDS];
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bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
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uint8_t g_scaling_buffer[DRIVER_COUNT][ISSI_SCALING_SIZE];
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bool g_scaling_buffer_update_required[DRIVER_COUNT] = {false};
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// For writing of single register entry
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void IS31FL_write_single_register(uint8_t addr, uint8_t reg, uint8_t data) {
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// Set register address and register data ready to write
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g_twi_transfer_buffer[0] = reg;
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g_twi_transfer_buffer[1] = data;
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#if ISSI_PERSISTENCE > 0
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for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0) break;
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}
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#else
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i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
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#endif
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}
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// For writing of mulitple register entries to make use of address auto increment
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// Once the controller has been called and we have written the first bit of data
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// the controller will move to the next register meaning we can write sequential blocks.
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bool IS31FL_write_multi_registers(uint8_t addr, uint8_t *source_buffer, uint8_t buffer_size, uint8_t transfer_size, uint8_t start_reg_addr) {
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// Split the buffer into chunks to transfer
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for (int i = 0; i < buffer_size; i += transfer_size) {
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// Set the first entry of transfer buffer to the first register we want to write
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g_twi_transfer_buffer[0] = i + start_reg_addr;
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// Copy the section of our source buffer into the transfer buffer after first register address
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memcpy(g_twi_transfer_buffer + 1, source_buffer + i, transfer_size);
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#if ISSI_PERSISTENCE > 0
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for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, transfer_size + 1, ISSI_TIMEOUT) != 0) {
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return false;
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}
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}
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#else
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, transfer_size + 1, ISSI_TIMEOUT) != 0) {
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return false;
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}
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#endif
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}
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return true;
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}
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void IS31FL_unlock_register(uint8_t addr, uint8_t page) {
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// unlock the command register and select Page to write
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IS31FL_write_single_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, ISSI_REGISTER_UNLOCK);
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IS31FL_write_single_register(addr, ISSI_COMMANDREGISTER, page);
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}
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void IS31FL_common_init(uint8_t addr, uint8_t ssr) {
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// Setup phase, need to take out of software shutdown and configure
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// ISSI_SSR_x is passed to allow Master / Slave setting where applicable
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// Unlock the command register & select Function Register
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IS31FL_unlock_register(addr, ISSI_PAGE_FUNCTION);
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// Set Configuration Register to remove Software shutdown
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IS31FL_write_single_register(addr, ISSI_REG_CONFIGURATION, ISSI_CONFIGURATION);
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// Set Golbal Current Control Register
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IS31FL_write_single_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
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// Set Pull up & Down for SWx CSy
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IS31FL_write_single_register(addr, ISSI_REG_PULLDOWNUP, ISSI_PULLDOWNUP);
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// Set Tempature Status
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#ifdef ISSI_REG_TEMP
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IS31FL_write_single_register(addr, ISSI_REG_TEMP, ISSI_TEMP);
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#endif
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// Set Spread Spectrum Register, passed through as sets SYNC function
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IS31FL_write_single_register(addr, ISSI_REG_SSR, ssr);
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// Set PWM Frequency Enable Register if applicable
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#ifdef ISSI_REG_PWM_ENABLE
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IS31FL_write_single_register(addr, ISSI_REG_PWM_ENABLE, ISSI_PWM_ENABLE);
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#endif
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// Set PWM Frequency Register if applicable
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#ifdef ISSI_REG_PWM_SET
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IS31FL_write_single_register(addr, ISSI_REG_PWM_SET, ISSI_PWM_SET);
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#endif
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// Wait 10ms to ensure the device has woken up.
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wait_ms(10);
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}
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void IS31FL_common_update_pwm_register(uint8_t addr, uint8_t index) {
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if (g_pwm_buffer_update_required[index]) {
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// Queue up the correct page
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IS31FL_unlock_register(addr, ISSI_PAGE_PWM);
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// Hand off the update to IS31FL_write_multi_registers
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IS31FL_write_multi_registers(addr, g_pwm_buffer[index], ISSI_MAX_LEDS, ISSI_PWM_TRF_SIZE, ISSI_PWM_REG_1ST);
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// Update flags that pwm_buffer has been updated
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g_pwm_buffer_update_required[index] = false;
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}
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}
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#ifdef ISSI_MANUAL_SCALING
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void IS31FL_set_manual_scaling_buffer(void) {
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for (int i = 0; i < ISSI_MANUAL_SCALING; i++) {
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is31_led scale = g_is31_scaling[i];
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# ifdef RGB_MATRIX_ENABLE
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if (scale.driver >= 0 && scale.driver < RGB_MATRIX_LED_COUNT) {
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is31_led led = g_is31_leds[scale.driver];
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g_scaling_buffer[led.driver][led.r] = scale.r;
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g_scaling_buffer[led.driver][led.g] = scale.g;
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g_scaling_buffer[led.driver][led.b] = scale.b;
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# elif defined(LED_MATRIX_ENABLE)
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if (scale.driver >= 0 && scale.driver < LED_MATRIX_LED_COUNT) {
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is31_led led = g_is31_leds[scale.driver];
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g_scaling_buffer[led.driver][led.v] = scale.v;
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# endif
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g_scaling_buffer_update_required[led.driver] = true;
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}
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}
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}
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#endif
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void IS31FL_common_update_scaling_register(uint8_t addr, uint8_t index) {
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if (g_scaling_buffer_update_required[index]) {
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// Queue up the correct page
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IS31FL_unlock_register(addr, ISSI_PAGE_SCALING);
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// Hand off the update to IS31FL_write_multi_registers
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IS31FL_write_multi_registers(addr, g_scaling_buffer[index], ISSI_SCALING_SIZE, ISSI_SCALING_TRF_SIZE, ISSI_SCL_REG_1ST);
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// Update flags that scaling_buffer has been updated
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g_scaling_buffer_update_required[index] = false;
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}
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}
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#ifdef RGB_MATRIX_ENABLE
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// Colour is set by adjusting PWM register
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void IS31FL_RGB_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
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if (index >= 0 && index < RGB_MATRIX_LED_COUNT) {
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is31_led led = g_is31_leds[index];
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g_pwm_buffer[led.driver][led.r] = red;
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g_pwm_buffer[led.driver][led.g] = green;
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g_pwm_buffer[led.driver][led.b] = blue;
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g_pwm_buffer_update_required[led.driver] = true;
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}
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}
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void IS31FL_RGB_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
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for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
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IS31FL_RGB_set_color(i, red, green, blue);
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}
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}
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// Setup Scaling register that decides the peak current of each LED
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void IS31FL_RGB_set_scaling_buffer(uint8_t index, bool red, bool green, bool blue) {
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is31_led led = g_is31_leds[index];
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if (red) {
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g_scaling_buffer[led.driver][led.r] = ISSI_SCAL_RED;
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} else {
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g_scaling_buffer[led.driver][led.r] = ISSI_SCAL_RED_OFF;
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}
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if (green) {
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g_scaling_buffer[led.driver][led.g] = ISSI_SCAL_GREEN;
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} else {
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g_scaling_buffer[led.driver][led.g] = ISSI_SCAL_GREEN_OFF;
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}
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if (blue) {
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g_scaling_buffer[led.driver][led.b] = ISSI_SCAL_BLUE;
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} else {
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g_scaling_buffer[led.driver][led.b] = ISSI_SCAL_BLUE_OFF;
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}
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g_scaling_buffer_update_required[led.driver] = true;
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}
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#elif defined(LED_MATRIX_ENABLE)
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// LED Matrix Specific scripts
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void IS31FL_simple_set_scaling_buffer(uint8_t index, bool value) {
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is31_led led = g_is31_leds[index];
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if (value) {
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g_scaling_buffer[led.driver][led.v] = ISSI_SCAL_LED;
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} else {
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g_scaling_buffer[led.driver][led.v] = ISSI_SCAL_LED_OFF;
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}
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g_scaling_buffer_update_required[led.driver] = true;
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}
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void IS31FL_simple_set_brightness(int index, uint8_t value) {
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if (index >= 0 && index < LED_MATRIX_LED_COUNT) {
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is31_led led = g_is31_leds[index];
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g_pwm_buffer[led.driver][led.v] = value;
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g_pwm_buffer_update_required[led.driver] = true;
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}
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}
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void IS31FL_simple_set_brigntness_all(uint8_t value) {
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for (int i = 0; i < LED_MATRIX_LED_COUNT; i++) {
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IS31FL_simple_set_brightness(i, value);
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}
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}
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#endif
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