227 lines
8.1 KiB
C
227 lines
8.1 KiB
C
/* Copyright 2017 Jason Williams
|
|
* Copyright 2018 Jack Humbert
|
|
* Copyright 2019 Clueboard
|
|
*
|
|
* 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/>.
|
|
*/
|
|
|
|
#ifdef __AVR__
|
|
#include <avr/interrupt.h>
|
|
#include <avr/io.h>
|
|
#include <util/delay.h>
|
|
#else
|
|
#include "wait.h"
|
|
#endif
|
|
|
|
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
#include "is31fl3235a.h"
|
|
#include "i2c_master.h"
|
|
#include "progmem.h"
|
|
#include "print.h"
|
|
|
|
|
|
#define ISSI_REG_CONFIG 0x00 // FIXME: Not on 3235?
|
|
#define ISSI_REG_CONFIG_PICTUREMODE 0x00 // FIXME: Not on 3235?
|
|
|
|
//#define ISSI_REG_AUDIOSYNC 0x06 // FIXME: Not on 3235?
|
|
|
|
#define ISSI_COMMANDREGISTER 0xFD // FIXME: Not on 3235?
|
|
#define ISSI_BANK_FUNCTIONREG 0x0B // FIXME: Not on 3235?
|
|
|
|
#ifndef ISSI_TIMEOUT
|
|
#define ISSI_TIMEOUT 100
|
|
#endif
|
|
|
|
#ifndef ISSI_PERSISTENCE
|
|
#define ISSI_PERSISTENCE 0
|
|
#endif
|
|
|
|
// Transfer buffer for TWITransmitData()
|
|
uint8_t g_3235a_transfer_buffer[20];
|
|
|
|
// These buffers match the IS31FL3235A PWM registers 0x05-0x20.
|
|
// Storing them like this is optimal for I2C transfers to the registers.
|
|
// We could optimize this and take out the unused registers from these
|
|
// buffers and the transfers in IS31FL3235A_write_pwm_buffer() but it's
|
|
// probably not worth the extra complexity.
|
|
uint8_t g_rgb7seg_buffer[IS31FL3235A_COUNT][IS31FL3235A_LED_MAX];
|
|
bool g_rgb7seg_buffer_update_required = false;
|
|
|
|
/* There's probably a better way to init this... */
|
|
#if IS31FL3235A_COUNT == 1
|
|
uint8_t g_3235a_control_registers[IS31FL3235A_COUNT][18] = {{0}};
|
|
#elif IS31FL3235A_COUNT == 2
|
|
uint8_t g_3235a_control_registers[IS31FL3235A_COUNT][18] = {{0}, {0}};
|
|
#elif IS31FL3235A_COUNT == 3
|
|
uint8_t g_3235a_control_registers[IS31FL3235A_COUNT][18] = {{0}, {0}, {0}};
|
|
#elif IS31FL3235A_COUNT == 4
|
|
uint8_t g_3235a_control_registers[IS31FL3235A_COUNT][18] = {{0}, {0}, {0}, {0}};
|
|
#endif
|
|
bool g_rgb7seg_control_registers_update_required = false;
|
|
|
|
void IS31FL3235A_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
|
|
g_3235a_transfer_buffer[0] = reg;
|
|
g_3235a_transfer_buffer[1] = data;
|
|
xprintf("IS31FL3235A_write_register(0x%x, 0x%x, 0x%x); g_3235a_transfer_buffer:0x%x\n", addr, reg, data, g_3235a_transfer_buffer);
|
|
|
|
#if ISSI_PERSISTENCE > 0
|
|
for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
|
|
if (i2c_transmit(addr, g_3235a_transfer_buffer, 2, ISSI_TIMEOUT) == 0) {
|
|
break;
|
|
}
|
|
}
|
|
#else
|
|
if (i2c_transmit(addr, g_3235a_transfer_buffer, 2, ISSI_TIMEOUT) == -1) {
|
|
// When we encounter a timeout ChibiOS says the bus must be reset as it's in an unknown state
|
|
xprintf("i2c transmit timeout, resetting i2c bus!\n");
|
|
i2c_stop(ISSI_TIMEOUT);
|
|
wait_ms(5);
|
|
i2c_start(ISSI_TIMEOUT);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void IS31FL3235A_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
|
|
// assumes bank is already selected
|
|
|
|
// transmit PWM registers in 9 transfers of 16 bytes
|
|
// g_3235a_transfer_buffer[] is 20 bytes
|
|
|
|
// iterate over the pwm_buffer contents at 16 byte intervals
|
|
for (int i = 0; i < IS31FL3235A_LED_MAX; i += 16) {
|
|
// set the first register, e.g. 0x24, 0x34, 0x44, etc.
|
|
g_3235a_transfer_buffer[0] = 0x24 + i;
|
|
// copy the data from i to i+15
|
|
// device will auto-increment register for data after the first byte
|
|
// thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer
|
|
for (int j = 0; j < 16; j++) {
|
|
g_3235a_transfer_buffer[1 + j] = pwm_buffer[i + j];
|
|
}
|
|
|
|
#if ISSI_PERSISTENCE > 0
|
|
for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
|
|
if (i2c_transmit(addr << 1, g_3235a_transfer_buffer, 17, ISSI_TIMEOUT) == 0)
|
|
break;
|
|
}
|
|
#else
|
|
if (i2c_transmit(addr << 1, g_3235a_transfer_buffer, 17, ISSI_TIMEOUT) == -1) {
|
|
// When we encounter a timeout ChibiOS says the bus must be reset as it's in an unknown state
|
|
xprintf("i2c transmit timeout, resetting i2c bus!\n");
|
|
i2c_stop(ISSI_TIMEOUT);
|
|
wait_ms(5);
|
|
i2c_start(ISSI_TIMEOUT);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void IS31FL3235A_init(uint8_t addr) {
|
|
wait_ms(2000); // Give QMK Toolbox time to attach
|
|
xprintf("IS31FS3235A_init(0x%x)\n", addr);
|
|
// In order to avoid the LEDs being driven with garbage data
|
|
// in the LED driver's PWM registers, first enable software shutdown,
|
|
// then set up the mode and other settings, clear the PWM registers,
|
|
// then disable software shutdown.
|
|
|
|
// Reset settings to default
|
|
//IS31FL3235A_write_register(addr, ISSI_REG_RESET_REG, 0);
|
|
|
|
// this delay was copied from other drivers, might not be needed
|
|
wait_ms(10);
|
|
|
|
// This is how the Arduino code does init...
|
|
uint8_t i = 0;
|
|
|
|
for (i=0x2A; i<=0x45; i++) {
|
|
IS31FL3235A_write_register(addr, i, 0xFF); // Turn off all LEDs
|
|
}
|
|
|
|
for (i=0x05; i<=0x20; i++) {
|
|
IS31FL3235A_write_register(addr, i, 0x00); // Write all PWM set 0x00
|
|
}
|
|
|
|
IS31FL3235A_write_register(addr, 0x25, 0x00); //update PWM&Control registers
|
|
IS31FL3235A_write_register(addr, 0x4B, 0x01); //frequency setting 22KHz
|
|
IS31FL3235A_write_register(addr, 0x00, 0x01); //normal operation
|
|
|
|
// This is how the Arduino code does LED turn on
|
|
IS31FL3235A_write_register(addr, 0x05, 0xFF); // set PWM
|
|
IS31FL3235A_write_register(addr, 0x25, 0x00); // update PWM&Control registers
|
|
IS31FL3235A_write_register(addr, 0x08, 0xFF); // set PWM
|
|
IS31FL3235A_write_register(addr, 0x25, 0x00); // update PWM&Control registers
|
|
IS31FL3235A_write_register(addr, 0x12, 0xFF); // set PWM
|
|
IS31FL3235A_write_register(addr, 0x25, 0x00); // update PWM&Control registers
|
|
|
|
// FIXME: This is for testing, turn on OUT1 at full brightness
|
|
//IS31FL3235A_write_register(addr, 0x2A, 0xFF);
|
|
//IS31FL3235A_write_register(addr, 0x05, 0x00);
|
|
|
|
// I think this finally turns it on?
|
|
//IS31FL3235A_write_register(addr, 0x25, 0x00); //update PWM&Control registers
|
|
//IS31FL3235A_write_register(addr, 0x4B, 0x01); //frequency setting 22KHz
|
|
//IS31FL3235A_write_register(addr, 0x00, 0x01); //normal operation
|
|
}
|
|
|
|
void IS31FL3235A_set_value(int index, uint8_t value) {
|
|
/*
|
|
if (index >= 0 && index < IS31FL3235A_LED_COUNT) {
|
|
is31_led led = g_is31_leds[index];
|
|
|
|
// Subtract 0x24 to get the second index of g_rgb7seg_buffer
|
|
g_rgb7seg_buffer[led.driver][led.v - 0x24] = value;
|
|
g_rgb7seg_buffer_update_required = true;
|
|
}
|
|
*/
|
|
}
|
|
|
|
void IS31FL3235A_set_value_all(uint8_t value) {
|
|
for (int i = 0; i < IS31FL3235A_LED_COUNT; i++) {
|
|
IS31FL3235A_set_value(i, value);
|
|
}
|
|
}
|
|
|
|
void IS31FL3235A_set_led_control_register(uint8_t index, bool value) {
|
|
/*
|
|
is31_led led = g_is31_leds[index];
|
|
|
|
uint8_t control_register = (led.v - 0x24) / 8;
|
|
uint8_t bit_value = (led.v - 0x24) % 8;
|
|
|
|
if (value) {
|
|
g_3235a_control_registers[led.driver][control_register] |= (1 << bit_value);
|
|
} else {
|
|
g_3235a_control_registers[led.driver][control_register] &= ~(1 << bit_value);
|
|
}
|
|
|
|
g_rgb7seg_control_registers_update_required = true;
|
|
*/
|
|
}
|
|
|
|
void IS31FL3235A_update_pwm_buffers(uint8_t addr, uint8_t index) {
|
|
//xprintf("IS31FS3235A_update_pwm_buffers(0x%x, %d)\n", addr, index);
|
|
if (g_rgb7seg_buffer_update_required) {
|
|
IS31FL3235A_write_pwm_buffer(addr, g_rgb7seg_buffer[index]);
|
|
g_rgb7seg_buffer_update_required = false;
|
|
}
|
|
}
|
|
|
|
void IS31FL3235A_update_led_control_registers(uint8_t addr, uint8_t index) {
|
|
if (g_rgb7seg_control_registers_update_required) {
|
|
for (int i=0; i<18; i++) {
|
|
IS31FL3235A_write_register(addr, i, g_3235a_control_registers[index][i]);
|
|
}
|
|
}
|
|
}
|