mirror of
https://gitlab.com/zephray/glider.git
synced 2024-12-22 21:51:47 +00:00
85 lines
No EOL
2.6 KiB
C
85 lines
No EOL
2.6 KiB
C
//
|
|
// Copyright 2023 Wenting Zhang <zephray@outlook.com>
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the "Software"), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
//
|
|
#include <stdio.h>
|
|
#include "pico/stdlib.h"
|
|
#include "hardware/pwm.h"
|
|
#include "config.h"
|
|
|
|
#if defined(POWER_GPIO)
|
|
#define PWR_EN_GPIO 21
|
|
#define PWR_VCOM_GPIO 22
|
|
|
|
#if defined(POWER_GPIO_VCOM_MEASURE)
|
|
#define PWR_VCOM_EN_GPIO 28
|
|
#define PWR_VCOM_MEN_GPIO 26
|
|
#define PWR_VCOM_MEA_GPIO 27
|
|
#endif
|
|
|
|
void power_init(void) {
|
|
gpio_put(PWR_EN_GPIO, 0);
|
|
gpio_init(PWR_EN_GPIO);
|
|
gpio_set_dir(PWR_EN_GPIO, GPIO_OUT);
|
|
gpio_set_function(PWR_VCOM_GPIO, GPIO_FUNC_PWM);
|
|
uint slice_num = pwm_gpio_to_slice_num(PWR_VCOM_GPIO);
|
|
// Set period to 256 cycles
|
|
pwm_set_wrap(slice_num, 255);
|
|
pwm_set_gpio_level(PWR_VCOM_GPIO, 127);
|
|
|
|
// 0 -3.421V
|
|
// 127 -2.145V
|
|
// 255 -0.987V
|
|
|
|
#if defined(POWER_GPIO_VCOM_MEASURE)
|
|
gpio_init(PWR_VCOM_EN_GPIO);
|
|
gpio_put(PWR_VCOM_EN_GPIO, 0);
|
|
gpio_set_dir(PWR_VCOM_EN_GPIO, GPIO_OUT);
|
|
|
|
gpio_init(PWR_VCOM_MEN_GPIO);
|
|
gpio_put(PWR_VCOM_MEN_GPIO, 1);
|
|
gpio_set_dir(PWR_VCOM_MEN_GPIO, GPIO_OUT);
|
|
#endif
|
|
|
|
}
|
|
|
|
void power_enable(bool en) {
|
|
gpio_put(PWR_EN_GPIO, en);
|
|
uint slice_num = pwm_gpio_to_slice_num(PWR_VCOM_GPIO);
|
|
pwm_set_enabled(slice_num, en);
|
|
}
|
|
|
|
// vcom is in mV
|
|
void power_set_vcom(int vcom) {
|
|
// Adjustable range:
|
|
// 0 = -3.27V
|
|
// 255 = -0.70V
|
|
int level = vcom / 10 + 324;
|
|
uint8_t level_u8;
|
|
if (level < 0)
|
|
level_u8 = 0;
|
|
else if (level > 255)
|
|
level_u8 = 255;
|
|
else
|
|
level_u8 = level;
|
|
pwm_set_gpio_level(PWR_VCOM_GPIO, level_u8);
|
|
}
|
|
|
|
#endif |