101 lines
3.0 KiB
C
101 lines
3.0 KiB
C
|
/**
|
||
|
|
* @file aw9523b.c
|
||
|
|
* @brief driver implementation of aw9523b
|
||
|
|
*
|
||
|
|
* Copyright 2020 astro <yuleiz@gmail.com>
|
||
|
|
*
|
||
|
|
* 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 <stdbool.h>
|
||
|
|
#include "aw9523b.h"
|
||
|
|
#include "wait.h"
|
||
|
|
#include "i2c_master.h"
|
||
|
|
|
||
|
|
#define AW9523B_P0_INPUT 0x00
|
||
|
|
#define AW9523B_P1_INPUT 0x01
|
||
|
|
#define AW9523B_P0_OUTPUT 0x02
|
||
|
|
#define AW9523B_P1_OUTPUT 0x03
|
||
|
|
#define AW9523B_P0_CONF 0x04
|
||
|
|
#define AW9523B_P1_CONF 0x05
|
||
|
|
#define AW9523B_P0_INT 0x06
|
||
|
|
#define AW9523B_P1_INT 0x07
|
||
|
|
|
||
|
|
#define AW9523B_ID 0x10
|
||
|
|
#define AW9523B_CTL 0x11
|
||
|
|
#define AW9523B_P0_LED 0x12
|
||
|
|
#define AW9523B_P1_LED 0x13
|
||
|
|
|
||
|
|
|
||
|
|
#define AW9523B_RESET 0x7F
|
||
|
|
|
||
|
|
#define TIMEOUT 100
|
||
|
|
|
||
|
|
#define PWM2BUF(x) ((x) - AW9523B_PWM_BASE)
|
||
|
|
static uint8_t aw9523b_pwm_buf[AW9523B_PWM_SIZE];
|
||
|
|
static bool aw9523b_pwm_dirty = false;
|
||
|
|
|
||
|
|
void aw9523b_init(uint8_t addr)
|
||
|
|
{
|
||
|
|
i2c_init();
|
||
|
|
// reset chip
|
||
|
|
uint8_t data = 0;
|
||
|
|
i2c_writeReg(addr, AW9523B_RESET, &data, 1, TIMEOUT);
|
||
|
|
wait_ms(1);
|
||
|
|
// set max led current
|
||
|
|
data = 0x03; // 37mA/4
|
||
|
|
i2c_writeReg(addr, AW9523B_CTL, &data, 1, TIMEOUT);
|
||
|
|
// set port to led mode
|
||
|
|
data = 0;
|
||
|
|
i2c_writeReg(addr, AW9523B_P0_LED, &data, 1, TIMEOUT);
|
||
|
|
i2c_writeReg(addr, AW9523B_P1_LED, &data, 1, TIMEOUT);
|
||
|
|
// clear pwm buff
|
||
|
|
for (uint8_t i = 0; i < 16; i++) {
|
||
|
|
aw9523b_pwm_buf[i] = 0;
|
||
|
|
}
|
||
|
|
aw9523b_pwm_dirty = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
void aw9523b_set_color(int index, uint8_t red, uint8_t green, uint8_t blue)
|
||
|
|
{
|
||
|
|
if (index >= AW9523B_RGB_NUM) return;
|
||
|
|
|
||
|
|
aw9523b_led led = g_aw9523b_leds[index];
|
||
|
|
aw9523b_pwm_buf[PWM2BUF(led.r)] = red;
|
||
|
|
aw9523b_pwm_buf[PWM2BUF(led.g)] = green;
|
||
|
|
aw9523b_pwm_buf[PWM2BUF(led.b)] = blue;
|
||
|
|
aw9523b_pwm_dirty = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void aw9523b_set_color_all(uint8_t red, uint8_t green, uint8_t blue)
|
||
|
|
{
|
||
|
|
for (uint8_t i = 0; i < AW9523B_RGB_NUM; i++) {
|
||
|
|
aw9523b_set_color(i, red, green, blue);
|
||
|
|
}
|
||
|
|
aw9523b_pwm_dirty = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
void aw9523b_update_pwm_buffers(uint8_t addr)
|
||
|
|
{
|
||
|
|
if (aw9523b_pwm_dirty) {
|
||
|
|
for (uint8_t i = 0; i < AW9523B_RGB_NUM; i++){
|
||
|
|
aw9523b_led led = g_aw9523b_leds[i];
|
||
|
|
i2c_writeReg(addr, led.r, &aw9523b_pwm_buf[PWM2BUF(led.r)], 1, TIMEOUT);
|
||
|
|
i2c_writeReg(addr, led.g, &aw9523b_pwm_buf[PWM2BUF(led.g)], 1, TIMEOUT);
|
||
|
|
i2c_writeReg(addr, led.b, &aw9523b_pwm_buf[PWM2BUF(led.b)], 1, TIMEOUT);
|
||
|
|
}
|
||
|
|
aw9523b_pwm_dirty = false;
|
||
|
|
}
|
||
|
|
}
|